diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..75f3401
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,18 @@
+# Run manually to reformat a file:
+# clang-format -i --style=file <file>
+# find . -iname '*.cc' -o -iname '*.h' -o -iname '*.h.in' | xargs clang-format -i --style=file
+BasedOnStyle: Google
+DerivePointerAlignment: false
+
+# Public headers are in a different location in the internal Google repository.
+# Order them so that when imported to the authoritative repository they will be
+# in correct alphabetical order.
+IncludeCategories:
+ - Regex: '^(<|"(db|helpers)/)'
+ Priority: 1
+ - Regex: '^"(leveldb)/'
+ Priority: 2
+ - Regex: '^(<|"(issues|port|table|third_party|util)/)'
+ Priority: 3
+ - Regex: '.*'
+ Priority: 4
diff --git a/README.md b/README.md
index 537cab1..0b660ae 100644
--- a/README.md
+++ b/README.md
@@ -86,6 +86,14 @@ Contribution requirements:
3. **Tests**: All changes must be accompanied by a new (or changed) test, or
a sufficient explanation as to why a new (or changed) test is not required.
+4. **Consistent Style**: This project conforms to the
+ [Google C++ Style Guide](https://google.github.io/styleguide/cppguide.html).
+ To ensure your changes are properly formatted please run:
+
+ ```
+ clang-format -i --style=file <file>
+ ```
+
## Submitting a Pull Request
Before any pull request will be accepted the author must first sign a
diff --git a/db/autocompact_test.cc b/db/autocompact_test.cc
index d20a236..00e3672 100644
--- a/db/autocompact_test.cc
+++ b/db/autocompact_test.cc
@@ -2,9 +2,9 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
-#include "leveldb/db.h"
#include "db/db_impl.h"
#include "leveldb/cache.h"
+#include "leveldb/db.h"
#include "util/testharness.h"
#include "util/testutil.h"
@@ -81,17 +81,16 @@ void AutoCompactTest::DoReads(int n) {
ASSERT_LT(read, 100) << "Taking too long to compact";
Iterator* iter = db_->NewIterator(ReadOptions());
for (iter->SeekToFirst();
- iter->Valid() && iter->key().ToString() < limit_key;
- iter->Next()) {
+ iter->Valid() && iter->key().ToString() < limit_key; iter->Next()) {
// Drop data
}
delete iter;
// Wait a little bit to allow any triggered compactions to complete.
Env::Default()->SleepForMicroseconds(1000000);
uint64_t size = Size(Key(0), Key(n));
- fprintf(stderr, "iter %3d => %7.3f MB [other %7.3f MB]\n",
- read+1, size/1048576.0, Size(Key(n), Key(kCount))/1048576.0);
- if (size <= initial_size/10) {
+ fprintf(stderr, "iter %3d => %7.3f MB [other %7.3f MB]\n", read + 1,
+ size / 1048576.0, Size(Key(n), Key(kCount)) / 1048576.0);
+ if (size <= initial_size / 10) {
break;
}
}
@@ -100,19 +99,13 @@ void AutoCompactTest::DoReads(int n) {
// is pretty much unchanged.
const int64_t final_other_size = Size(Key(n), Key(kCount));
ASSERT_LE(final_other_size, initial_other_size + 1048576);
- ASSERT_GE(final_other_size, initial_other_size/5 - 1048576);
+ ASSERT_GE(final_other_size, initial_other_size / 5 - 1048576);
}
-TEST(AutoCompactTest, ReadAll) {
- DoReads(kCount);
-}
+TEST(AutoCompactTest, ReadAll) { DoReads(kCount); }
-TEST(AutoCompactTest, ReadHalf) {
- DoReads(kCount/2);
-}
+TEST(AutoCompactTest, ReadHalf) { DoReads(kCount / 2); }
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/db/builder.cc b/db/builder.cc
index 5fa405d..9520ee4 100644
--- a/db/builder.cc
+++ b/db/builder.cc
@@ -4,8 +4,8 @@
#include "db/builder.h"
-#include "db/filename.h"
#include "db/dbformat.h"
+#include "db/filename.h"
#include "db/table_cache.h"
#include "db/version_edit.h"
#include "leveldb/db.h"
@@ -14,12 +14,8 @@
namespace leveldb {
-Status BuildTable(const std::string& dbname,
- Env* env,
- const Options& options,
- TableCache* table_cache,
- Iterator* iter,
- FileMetaData* meta) {
+Status BuildTable(const std::string& dbname, Env* env, const Options& options,
+ TableCache* table_cache, Iterator* iter, FileMetaData* meta) {
Status s;
meta->file_size = 0;
iter->SeekToFirst();
@@ -60,8 +56,7 @@ Status BuildTable(const std::string& dbname,
if (s.ok()) {
// Verify that the table is usable
- Iterator* it = table_cache->NewIterator(ReadOptions(),
- meta->number,
+ Iterator* it = table_cache->NewIterator(ReadOptions(), meta->number,
meta->file_size);
s = it->status();
delete it;
diff --git a/db/builder.h b/db/builder.h
index 0289730..7bd0b80 100644
--- a/db/builder.h
+++ b/db/builder.h
@@ -22,12 +22,8 @@ class VersionEdit;
// *meta will be filled with metadata about the generated table.
// If no data is present in *iter, meta->file_size will be set to
// zero, and no Table file will be produced.
-Status BuildTable(const std::string& dbname,
- Env* env,
- const Options& options,
- TableCache* table_cache,
- Iterator* iter,
- FileMetaData* meta);
+Status BuildTable(const std::string& dbname, Env* env, const Options& options,
+ TableCache* table_cache, Iterator* iter, FileMetaData* meta);
} // namespace leveldb
diff --git a/db/c.cc b/db/c.cc
index 7756ea3..72f6daa 100644
--- a/db/c.cc
+++ b/db/c.cc
@@ -5,6 +5,7 @@
#include "leveldb/c.h"
#include <stdlib.h>
+
#include "leveldb/cache.h"
#include "leveldb/comparator.h"
#include "leveldb/db.h"
@@ -42,67 +43,79 @@ using leveldb::WriteOptions;
extern "C" {
-struct leveldb_t { DB* rep; };
-struct leveldb_iterator_t { Iterator* rep; };
-struct leveldb_writebatch_t { WriteBatch rep; };
-struct leveldb_snapshot_t { const Snapshot* rep; };
-struct leveldb_readoptions_t { ReadOptions rep; };
-struct leveldb_writeoptions_t { WriteOptions rep; };
-struct leveldb_options_t { Options rep; };
-struct leveldb_cache_t { Cache* rep; };
-struct leveldb_seqfile_t { SequentialFile* rep; };
-struct leveldb_randomfile_t { RandomAccessFile* rep; };
-struct leveldb_writablefile_t { WritableFile* rep; };
-struct leveldb_logger_t { Logger* rep; };
-struct leveldb_filelock_t { FileLock* rep; };
+struct leveldb_t {
+ DB* rep;
+};
+struct leveldb_iterator_t {
+ Iterator* rep;
+};
+struct leveldb_writebatch_t {
+ WriteBatch rep;
+};
+struct leveldb_snapshot_t {
+ const Snapshot* rep;
+};
+struct leveldb_readoptions_t {
+ ReadOptions rep;
+};
+struct leveldb_writeoptions_t {
+ WriteOptions rep;
+};
+struct leveldb_options_t {
+ Options rep;
+};
+struct leveldb_cache_t {
+ Cache* rep;
+};
+struct leveldb_seqfile_t {
+ SequentialFile* rep;
+};
+struct leveldb_randomfile_t {
+ RandomAccessFile* rep;
+};
+struct leveldb_writablefile_t {
+ WritableFile* rep;
+};
+struct leveldb_logger_t {
+ Logger* rep;
+};
+struct leveldb_filelock_t {
+ FileLock* rep;
+};
struct leveldb_comparator_t : public Comparator {
void* state_;
void (*destructor_)(void*);
- int (*compare_)(
- void*,
- const char* a, size_t alen,
- const char* b, size_t blen);
+ int (*compare_)(void*, const char* a, size_t alen, const char* b,
+ size_t blen);
const char* (*name_)(void*);
- virtual ~leveldb_comparator_t() {
- (*destructor_)(state_);
- }
+ virtual ~leveldb_comparator_t() { (*destructor_)(state_); }
virtual int Compare(const Slice& a, const Slice& b) const {
return (*compare_)(state_, a.data(), a.size(), b.data(), b.size());
}
- virtual const char* Name() const {
- return (*name_)(state_);
- }
+ virtual const char* Name() const { return (*name_)(state_); }
// No-ops since the C binding does not support key shortening methods.
- virtual void FindShortestSeparator(std::string*, const Slice&) const { }
- virtual void FindShortSuccessor(std::string* key) const { }
+ virtual void FindShortestSeparator(std::string*, const Slice&) const {}
+ virtual void FindShortSuccessor(std::string* key) const {}
};
struct leveldb_filterpolicy_t : public FilterPolicy {
void* state_;
void (*destructor_)(void*);
const char* (*name_)(void*);
- char* (*create_)(
- void*,
- const char* const* key_array, const size_t* key_length_array,
- int num_keys,
- size_t* filter_length);
- unsigned char (*key_match_)(
- void*,
- const char* key, size_t length,
- const char* filter, size_t filter_length);
-
- virtual ~leveldb_filterpolicy_t() {
- (*destructor_)(state_);
- }
+ char* (*create_)(void*, const char* const* key_array,
+ const size_t* key_length_array, int num_keys,
+ size_t* filter_length);
+ unsigned char (*key_match_)(void*, const char* key, size_t length,
+ const char* filter, size_t filter_length);
- virtual const char* Name() const {
- return (*name_)(state_);
- }
+ virtual ~leveldb_filterpolicy_t() { (*destructor_)(state_); }
+
+ virtual const char* Name() const { return (*name_)(state_); }
virtual void CreateFilter(const Slice* keys, int n, std::string* dst) const {
std::vector<const char*> key_pointers(n);
@@ -118,8 +131,8 @@ struct leveldb_filterpolicy_t : public FilterPolicy {
}
virtual bool KeyMayMatch(const Slice& key, const Slice& filter) const {
- return (*key_match_)(state_, key.data(), key.size(),
- filter.data(), filter.size());
+ return (*key_match_)(state_, key.data(), key.size(), filter.data(),
+ filter.size());
}
};
@@ -148,10 +161,8 @@ static char* CopyString(const std::string& str) {
return result;
}
-leveldb_t* leveldb_open(
- const leveldb_options_t* options,
- const char* name,
- char** errptr) {
+leveldb_t* leveldb_open(const leveldb_options_t* options, const char* name,
+ char** errptr) {
DB* db;
if (SaveError(errptr, DB::Open(options->rep, std::string(name), &db))) {
return nullptr;
@@ -166,39 +177,26 @@ void leveldb_close(leveldb_t* db) {
delete db;
}
-void leveldb_put(
- leveldb_t* db,
- const leveldb_writeoptions_t* options,
- const char* key, size_t keylen,
- const char* val, size_t vallen,
- char** errptr) {
+void leveldb_put(leveldb_t* db, const leveldb_writeoptions_t* options,
+ const char* key, size_t keylen, const char* val, size_t vallen,
+ char** errptr) {
SaveError(errptr,
db->rep->Put(options->rep, Slice(key, keylen), Slice(val, vallen)));
}
-void leveldb_delete(
- leveldb_t* db,
- const leveldb_writeoptions_t* options,
- const char* key, size_t keylen,
- char** errptr) {
+void leveldb_delete(leveldb_t* db, const leveldb_writeoptions_t* options,
+ const char* key, size_t keylen, char** errptr) {
SaveError(errptr, db->rep->Delete(options->rep, Slice(key, keylen)));
}
-
-void leveldb_write(
- leveldb_t* db,
- const leveldb_writeoptions_t* options,
- leveldb_writebatch_t* batch,
- char** errptr) {
+void leveldb_write(leveldb_t* db, const leveldb_writeoptions_t* options,
+ leveldb_writebatch_t* batch, char** errptr) {
SaveError(errptr, db->rep->Write(options->rep, &batch->rep));
}
-char* leveldb_get(
- leveldb_t* db,
- const leveldb_readoptions_t* options,
- const char* key, size_t keylen,
- size_t* vallen,
- char** errptr) {
+char* leveldb_get(leveldb_t* db, const leveldb_readoptions_t* options,
+ const char* key, size_t keylen, size_t* vallen,
+ char** errptr) {
char* result = nullptr;
std::string tmp;
Status s = db->rep->Get(options->rep, Slice(key, keylen), &tmp);
@@ -215,30 +213,25 @@ char* leveldb_get(
}
leveldb_iterator_t* leveldb_create_iterator(
- leveldb_t* db,
- const leveldb_readoptions_t* options) {
+ leveldb_t* db, const leveldb_readoptions_t* options) {
leveldb_iterator_t* result = new leveldb_iterator_t;
result->rep = db->rep->NewIterator(options->rep);
return result;
}
-const leveldb_snapshot_t* leveldb_create_snapshot(
- leveldb_t* db) {
+const leveldb_snapshot_t* leveldb_create_snapshot(leveldb_t* db) {
leveldb_snapshot_t* result = new leveldb_snapshot_t;
result->rep = db->rep->GetSnapshot();
return result;
}
-void leveldb_release_snapshot(
- leveldb_t* db,
- const leveldb_snapshot_t* snapshot) {
+void leveldb_release_snapshot(leveldb_t* db,
+ const leveldb_snapshot_t* snapshot) {
db->rep->ReleaseSnapshot(snapshot->rep);
delete snapshot;
}
-char* leveldb_property_value(
- leveldb_t* db,
- const char* propname) {
+char* leveldb_property_value(leveldb_t* db, const char* propname) {
std::string tmp;
if (db->rep->GetProperty(Slice(propname), &tmp)) {
// We use strdup() since we expect human readable output.
@@ -248,12 +241,12 @@ char* leveldb_property_value(
}
}
-void leveldb_approximate_sizes(
- leveldb_t* db,
- int num_ranges,
- const char* const* range_start_key, const size_t* range_start_key_len,
- const char* const* range_limit_key, const size_t* range_limit_key_len,
- uint64_t* sizes) {
+void leveldb_approximate_sizes(leveldb_t* db, int num_ranges,
+ const char* const* range_start_key,
+ const size_t* range_start_key_len,
+ const char* const* range_limit_key,
+ const size_t* range_limit_key_len,
+ uint64_t* sizes) {
Range* ranges = new Range[num_ranges];
for (int i = 0; i < num_ranges; i++) {
ranges[i].start = Slice(range_start_key[i], range_start_key_len[i]);
@@ -263,10 +256,9 @@ void leveldb_approximate_sizes(
delete[] ranges;
}
-void leveldb_compact_range(
- leveldb_t* db,
- const char* start_key, size_t start_key_len,
- const char* limit_key, size_t limit_key_len) {
+void leveldb_compact_range(leveldb_t* db, const char* start_key,
+ size_t start_key_len, const char* limit_key,
+ size_t limit_key_len) {
Slice a, b;
db->rep->CompactRange(
// Pass null Slice if corresponding "const char*" is null
@@ -274,17 +266,13 @@ void leveldb_compact_range(
(limit_key ? (b = Slice(limit_key, limit_key_len), &b) : nullptr));
}
-void leveldb_destroy_db(
- const leveldb_options_t* options,
- const char* name,
- char** errptr) {
+void leveldb_destroy_db(const leveldb_options_t* options, const char* name,
+ char** errptr) {
SaveError(errptr, DestroyDB(name, options->rep));
}
-void leveldb_repair_db(
- const leveldb_options_t* options,
- const char* name,
- char** errptr) {
+void leveldb_repair_db(const leveldb_options_t* options, const char* name,
+ char** errptr) {
SaveError(errptr, RepairDB(name, options->rep));
}
@@ -309,13 +297,9 @@ void leveldb_iter_seek(leveldb_iterator_t* iter, const char* k, size_t klen) {
iter->rep->Seek(Slice(k, klen));
}
-void leveldb_iter_next(leveldb_iterator_t* iter) {
- iter->rep->Next();
-}
+void leveldb_iter_next(leveldb_iterator_t* iter) { iter->rep->Next(); }
-void leveldb_iter_prev(leveldb_iterator_t* iter) {
- iter->rep->Prev();
-}
+void leveldb_iter_prev(leveldb_iterator_t* iter) { iter->rep->Prev(); }
const char* leveldb_iter_key(const leveldb_iterator_t* iter, size_t* klen) {
Slice s = iter->rep->key();
@@ -337,32 +321,25 @@ leveldb_writebatch_t* leveldb_writebatch_create() {
return new leveldb_writebatch_t;
}
-void leveldb_writebatch_destroy(leveldb_writebatch_t* b) {
- delete b;
-}
+void leveldb_writebatch_destroy(leveldb_writebatch_t* b) { delete b; }
-void leveldb_writebatch_clear(leveldb_writebatch_t* b) {
- b->rep.Clear();
-}
+void leveldb_writebatch_clear(leveldb_writebatch_t* b) { b->rep.Clear(); }
-void leveldb_writebatch_put(
- leveldb_writebatch_t* b,
- const char* key, size_t klen,
- const char* val, size_t vlen) {
+void leveldb_writebatch_put(leveldb_writebatch_t* b, const char* key,
+ size_t klen, const char* val, size_t vlen) {
b->rep.Put(Slice(key, klen), Slice(val, vlen));
}
-void leveldb_writebatch_delete(
- leveldb_writebatch_t* b,
- const char* key, size_t klen) {
+void leveldb_writebatch_delete(leveldb_writebatch_t* b, const char* key,
+ size_t klen) {
b->rep.Delete(Slice(key, klen));
}
-void leveldb_writebatch_iterate(
- const leveldb_writebatch_t* b,
- void* state,
- void (*put)(void*, const char* k, size_t klen, const char* v, size_t vlen),
- void (*deleted)(void*, const char* k, size_t klen)) {
+void leveldb_writebatch_iterate(const leveldb_writebatch_t* b, void* state,
+ void (*put)(void*, const char* k, size_t klen,
+ const char* v, size_t vlen),
+ void (*deleted)(void*, const char* k,
+ size_t klen)) {
class H : public WriteBatch::Handler {
public:
void* state_;
@@ -382,43 +359,37 @@ void leveldb_writebatch_iterate(
b->rep.Iterate(&handler);
}
-void leveldb_writebatch_append(leveldb_writebatch_t *destination,
- const leveldb_writebatch_t *source) {
+void leveldb_writebatch_append(leveldb_writebatch_t* destination,
+ const leveldb_writebatch_t* source) {
destination->rep.Append(source->rep);
}
-leveldb_options_t* leveldb_options_create() {
- return new leveldb_options_t;
-}
+leveldb_options_t* leveldb_options_create() { return new leveldb_options_t; }
-void leveldb_options_destroy(leveldb_options_t* options) {
- delete options;
-}
+void leveldb_options_destroy(leveldb_options_t* options) { delete options; }
-void leveldb_options_set_comparator(
- leveldb_options_t* opt,
- leveldb_comparator_t* cmp) {
+void leveldb_options_set_comparator(leveldb_options_t* opt,
+ leveldb_comparator_t* cmp) {
opt->rep.comparator = cmp;
}
-void leveldb_options_set_filter_policy(
- leveldb_options_t* opt,
- leveldb_filterpolicy_t* policy) {
+void leveldb_options_set_filter_policy(leveldb_options_t* opt,
+ leveldb_filterpolicy_t* policy) {
opt->rep.filter_policy = policy;
}
-void leveldb_options_set_create_if_missing(
- leveldb_options_t* opt, unsigned char v) {
+void leveldb_options_set_create_if_missing(leveldb_options_t* opt,
+ unsigned char v) {
opt->rep.create_if_missing = v;
}
-void leveldb_options_set_error_if_exists(
- leveldb_options_t* opt, unsigned char v) {
+void leveldb_options_set_error_if_exists(leveldb_options_t* opt,
+ unsigned char v) {
opt->rep.error_if_exists = v;
}
-void leveldb_options_set_paranoid_checks(
- leveldb_options_t* opt, unsigned char v) {
+void leveldb_options_set_paranoid_checks(leveldb_options_t* opt,
+ unsigned char v) {
opt->rep.paranoid_checks = v;
}
@@ -459,12 +430,9 @@ void leveldb_options_set_compression(leveldb_options_t* opt, int t) {
}
leveldb_comparator_t* leveldb_comparator_create(
- void* state,
- void (*destructor)(void*),
- int (*compare)(
- void*,
- const char* a, size_t alen,
- const char* b, size_t blen),
+ void* state, void (*destructor)(void*),
+ int (*compare)(void*, const char* a, size_t alen, const char* b,
+ size_t blen),
const char* (*name)(void*)) {
leveldb_comparator_t* result = new leveldb_comparator_t;
result->state_ = state;
@@ -474,22 +442,15 @@ leveldb_comparator_t* leveldb_comparator_create(
return result;
}
-void leveldb_comparator_destroy(leveldb_comparator_t* cmp) {
- delete cmp;
-}
+void leveldb_comparator_destroy(leveldb_comparator_t* cmp) { delete cmp; }
leveldb_filterpolicy_t* leveldb_filterpolicy_create(
- void* state,
- void (*destructor)(void*),
- char* (*create_filter)(
- void*,
- const char* const* key_array, const size_t* key_length_array,
- int num_keys,
- size_t* filter_length),
- unsigned char (*key_may_match)(
- void*,
- const char* key, size_t length,
- const char* filter, size_t filter_length),
+ void* state, void (*destructor)(void*),
+ char* (*create_filter)(void*, const char* const* key_array,
+ const size_t* key_length_array, int num_keys,
+ size_t* filter_length),
+ unsigned char (*key_may_match)(void*, const char* key, size_t length,
+ const char* filter, size_t filter_length),
const char* (*name)(void*)) {
leveldb_filterpolicy_t* result = new leveldb_filterpolicy_t;
result->state_ = state;
@@ -518,7 +479,7 @@ leveldb_filterpolicy_t* leveldb_filterpolicy_create_bloom(int bits_per_key) {
bool KeyMayMatch(const Slice& key, const Slice& filter) const {
return rep_->KeyMayMatch(key, filter);
}
- static void DoNothing(void*) { }
+ static void DoNothing(void*) {}
};
Wrapper* wrapper = new Wrapper;
wrapper->rep_ = NewBloomFilterPolicy(bits_per_key);
@@ -531,24 +492,20 @@ leveldb_readoptions_t* leveldb_readoptions_create() {
return new leveldb_readoptions_t;
}
-void leveldb_readoptions_destroy(leveldb_readoptions_t* opt) {
- delete opt;
-}
+void leveldb_readoptions_destroy(leveldb_readoptions_t* opt) { delete opt; }
-void leveldb_readoptions_set_verify_checksums(
- leveldb_readoptions_t* opt,
- unsigned char v) {
+void leveldb_readoptions_set_verify_checksums(leveldb_readoptions_t* opt,
+ unsigned char v) {
opt->rep.verify_checksums = v;
}
-void leveldb_readoptions_set_fill_cache(
- leveldb_readoptions_t* opt, unsigned char v) {
+void leveldb_readoptions_set_fill_cache(leveldb_readoptions_t* opt,
+ unsigned char v) {
opt->rep.fill_cache = v;
}
-void leveldb_readoptions_set_snapshot(
- leveldb_readoptions_t* opt,
- const leveldb_snapshot_t* snap) {
+void leveldb_readoptions_set_snapshot(leveldb_readoptions_t* opt,
+ const leveldb_snapshot_t* snap) {
opt->rep.snapshot = (snap ? snap->rep : nullptr);
}
@@ -556,12 +513,10 @@ leveldb_writeoptions_t* leveldb_writeoptions_create() {
return new leveldb_writeoptions_t;
}
-void leveldb_writeoptions_destroy(leveldb_writeoptions_t* opt) {
- delete opt;
-}
+void leveldb_writeoptions_destroy(leveldb_writeoptions_t* opt) { delete opt; }
-void leveldb_writeoptions_set_sync(
- leveldb_writeoptions_t* opt, unsigned char v) {
+void leveldb_writeoptions_set_sync(leveldb_writeoptions_t* opt,
+ unsigned char v) {
opt->rep.sync = v;
}
@@ -600,16 +555,10 @@ char* leveldb_env_get_test_directory(leveldb_env_t* env) {
return buffer;
}
-void leveldb_free(void* ptr) {
- free(ptr);
-}
+void leveldb_free(void* ptr) { free(ptr); }
-int leveldb_major_version() {
- return kMajorVersion;
-}
+int leveldb_major_version() { return kMajorVersion; }
-int leveldb_minor_version() {
- return kMinorVersion;
-}
+int leveldb_minor_version() { return kMinorVersion; }
} // end extern "C"
diff --git a/db/corruption_test.cc b/db/corruption_test.cc
index d50785a..e6f64ee 100644
--- a/db/corruption_test.cc
+++ b/db/corruption_test.cc
@@ -2,16 +2,16 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
-#include "leveldb/db.h"
-
#include <sys/types.h>
-#include "leveldb/cache.h"
-#include "leveldb/table.h"
-#include "leveldb/write_batch.h"
+
#include "db/db_impl.h"
#include "db/filename.h"
#include "db/log_format.h"
#include "db/version_set.h"
+#include "leveldb/cache.h"
+#include "leveldb/db.h"
+#include "leveldb/table.h"
+#include "leveldb/write_batch.h"
#include "util/logging.h"
#include "util/testharness.h"
#include "util/testutil.h"
@@ -42,8 +42,8 @@ class CorruptionTest {
}
~CorruptionTest() {
- delete db_;
- delete tiny_cache_;
+ delete db_;
+ delete tiny_cache_;
}
Status TryReopen() {
@@ -52,9 +52,7 @@ class CorruptionTest {
return DB::Open(options_, dbname_, &db_);
}
- void Reopen() {
- ASSERT_OK(TryReopen());
- }
+ void Reopen() { ASSERT_OK(TryReopen()); }
void RepairDB() {
delete db_;
@@ -66,7 +64,7 @@ class CorruptionTest {
std::string key_space, value_space;
WriteBatch batch;
for (int i = 0; i < n; i++) {
- //if ((i % 100) == 0) fprintf(stderr, "@ %d of %d\n", i, n);
+ // if ((i % 100) == 0) fprintf(stderr, "@ %d of %d\n", i, n);
Slice key = Key(i, &key_space);
batch.Clear();
batch.Put(key, Value(i, &value_space));
@@ -95,8 +93,7 @@ class CorruptionTest {
// Ignore boundary keys.
continue;
}
- if (!ConsumeDecimalNumber(&in, &key) ||
- !in.empty() ||
+ if (!ConsumeDecimalNumber(&in, &key) || !in.empty() ||
key < next_expected) {
bad_keys++;
continue;
@@ -127,8 +124,7 @@ class CorruptionTest {
std::string fname;
int picked_number = -1;
for (size_t i = 0; i < filenames.size(); i++) {
- if (ParseFileName(filenames[i], &number, &type) &&
- type == filetype &&
+ if (ParseFileName(filenames[i], &number, &type) && type == filetype &&
int(number) > picked_number) { // Pick latest file
fname = dbname_ + "/" + filenames[i];
picked_number = number;
@@ -194,7 +190,7 @@ class CorruptionTest {
TEST(CorruptionTest, Recovery) {
Build(100);
Check(100, 100);
- Corrupt(kLogFile, 19, 1); // WriteBatch tag for first record
+ Corrupt(kLogFile, 19, 1); // WriteBatch tag for first record
Corrupt(kLogFile, log::kBlockSize + 1000, 1); // Somewhere in second block
Reopen();
@@ -361,6 +357,4 @@ TEST(CorruptionTest, UnrelatedKeys) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/db/db_bench.cc b/db/db_bench.cc
index 41e903b..3090b43 100644
--- a/db/db_bench.cc
+++ b/db/db_bench.cc
@@ -2,9 +2,10 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
-#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
+#include <sys/types.h>
+
#include "leveldb/cache.h"
#include "leveldb/db.h"
#include "leveldb/env.h"
@@ -55,8 +56,7 @@ static const char* FLAGS_benchmarks =
"fill100K,"
"crc32c,"
"snappycomp,"
- "snappyuncomp,"
- ;
+ "snappyuncomp,";
// Number of key/values to place in database
static int FLAGS_num = 1000000;
@@ -155,7 +155,7 @@ static Slice TrimSpace(Slice s) {
start++;
}
size_t limit = s.size();
- while (limit > start && isspace(s[limit-1])) {
+ while (limit > start && isspace(s[limit - 1])) {
limit--;
}
return Slice(s.data() + start, limit - start);
@@ -214,9 +214,7 @@ class Stats {
seconds_ = (finish_ - start_) * 1e-6;
}
- void AddMessage(Slice msg) {
- AppendWithSpace(&message_, msg);
- }
+ void AddMessage(Slice msg) { AppendWithSpace(&message_, msg); }
void FinishedSingleOp() {
if (FLAGS_histogram) {
@@ -232,21 +230,26 @@ class Stats {
done_++;
if (done_ >= next_report_) {
- if (next_report_ < 1000) next_report_ += 100;
- else if (next_report_ < 5000) next_report_ += 500;
- else if (next_report_ < 10000) next_report_ += 1000;
- else if (next_report_ < 50000) next_report_ += 5000;
- else if (next_report_ < 100000) next_report_ += 10000;
- else if (next_report_ < 500000) next_report_ += 50000;
- else next_report_ += 100000;
+ if (next_report_ < 1000)
+ next_report_ += 100;
+ else if (next_report_ < 5000)
+ next_report_ += 500;
+ else if (next_report_ < 10000)
+ next_report_ += 1000;
+ else if (next_report_ < 50000)
+ next_report_ += 5000;
+ else if (next_report_ < 100000)
+ next_report_ += 10000;
+ else if (next_report_ < 500000)
+ next_report_ += 50000;
+ else
+ next_report_ += 100000;
fprintf(stderr, "... finished %d ops%30s\r", done_, "");
fflush(stderr);
}
}
- void AddBytes(int64_t n) {
- bytes_ += n;
- }
+ void AddBytes(int64_t n) { bytes_ += n; }
void Report(const Slice& name) {
// Pretend at least one op was done in case we are running a benchmark
@@ -265,11 +268,8 @@ class Stats {
}
AppendWithSpace(&extra, message_);
- fprintf(stdout, "%-12s : %11.3f micros/op;%s%s\n",
- name.ToString().c_str(),
- seconds_ * 1e6 / done_,
- (extra.empty() ? "" : " "),
- extra.c_str());
+ fprintf(stdout, "%-12s : %11.3f micros/op;%s%s\n", name.ToString().c_str(),
+ seconds_ * 1e6 / done_, (extra.empty() ? "" : " "), extra.c_str());
if (FLAGS_histogram) {
fprintf(stdout, "Microseconds per op:\n%s\n", hist_.ToString().c_str());
}
@@ -294,13 +294,13 @@ struct SharedState {
bool start GUARDED_BY(mu);
SharedState(int total)
- : cv(&mu), total(total), num_initialized(0), num_done(0), start(false) { }
+ : cv(&mu), total(total), num_initialized(0), num_done(0), start(false) {}
};
// Per-thread state for concurrent executions of the same benchmark.
struct ThreadState {
- int tid; // 0..n-1 when running in n threads
- Random rand; // Has different seeds for different threads
+ int tid; // 0..n-1 when running in n threads
+ Random rand; // Has different seeds for different threads
Stats stats;
SharedState* shared;
@@ -330,20 +330,20 @@ class Benchmark {
static_cast<int>(FLAGS_value_size * FLAGS_compression_ratio + 0.5));
fprintf(stdout, "Entries: %d\n", num_);
fprintf(stdout, "RawSize: %.1f MB (estimated)\n",
- ((static_cast<int64_t>(kKeySize + FLAGS_value_size) * num_)
- / 1048576.0));
+ ((static_cast<int64_t>(kKeySize + FLAGS_value_size) * num_) /
+ 1048576.0));
fprintf(stdout, "FileSize: %.1f MB (estimated)\n",
- (((kKeySize + FLAGS_value_size * FLAGS_compression_ratio) * num_)
- / 1048576.0));
+ (((kKeySize + FLAGS_value_size * FLAGS_compression_ratio) * num_) /
+ 1048576.0));
PrintWarnings();
fprintf(stdout, "------------------------------------------------\n");
}
void PrintWarnings() {
#if defined(__GNUC__) && !defined(__OPTIMIZE__)
- fprintf(stdout,
- "WARNING: Optimization is disabled: benchmarks unnecessarily slow\n"
- );
+ fprintf(
+ stdout,
+ "WARNING: Optimization is disabled: benchmarks unnecessarily slow\n");
#endif
#ifndef NDEBUG
fprintf(stdout,
@@ -361,8 +361,8 @@ class Benchmark {
}
void PrintEnvironment() {
- fprintf(stderr, "LevelDB: version %d.%d\n",
- kMajorVersion, kMinorVersion);
+ fprintf(stderr, "LevelDB: version %d.%d\n", kMajorVersion,
+ kMinorVersion);
#if defined(__linux)
time_t now = time(nullptr);
@@ -397,16 +397,16 @@ class Benchmark {
public:
Benchmark()
- : cache_(FLAGS_cache_size >= 0 ? NewLRUCache(FLAGS_cache_size) : nullptr),
- filter_policy_(FLAGS_bloom_bits >= 0
- ? NewBloomFilterPolicy(FLAGS_bloom_bits)
- : nullptr),
- db_(nullptr),
- num_(FLAGS_num),
- value_size_(FLAGS_value_size),
- entries_per_batch_(1),
- reads_(FLAGS_reads < 0 ? FLAGS_num : FLAGS_reads),
- heap_counter_(0) {
+ : cache_(FLAGS_cache_size >= 0 ? NewLRUCache(FLAGS_cache_size) : nullptr),
+ filter_policy_(FLAGS_bloom_bits >= 0
+ ? NewBloomFilterPolicy(FLAGS_bloom_bits)
+ : nullptr),
+ db_(nullptr),
+ num_(FLAGS_num),
+ value_size_(FLAGS_value_size),
+ entries_per_batch_(1),
+ reads_(FLAGS_reads < 0 ? FLAGS_num : FLAGS_reads),
+ heap_counter_(0) {
std::vector<std::string> files;
g_env->GetChildren(FLAGS_db, &files);
for (size_t i = 0; i < files.size(); i++) {
@@ -516,7 +516,7 @@ class Benchmark {
} else if (name == Slice("sstables")) {
PrintStats("leveldb.sstables");
} else {
- if (name != Slice()) { // No error message for empty name
+ if (!name.empty()) { // No error message for empty name
fprintf(stderr, "unknown benchmark '%s'\n", name.ToString().c_str());
}
}
@@ -665,8 +665,8 @@ class Benchmark {
int64_t bytes = 0;
char* uncompressed = new char[input.size()];
while (ok && bytes < 1024 * 1048576) { // Compress 1G
- ok = port::Snappy_Uncompress(compressed.data(), compressed.size(),
- uncompressed);
+ ok = port::Snappy_Uncompress(compressed.data(), compressed.size(),
+ uncompressed);
bytes += input.size();
thread->stats.FinishedSingleOp();
}
@@ -706,13 +706,9 @@ class Benchmark {
}
}
- void WriteSeq(ThreadState* thread) {
- DoWrite(thread, true);
- }
+ void WriteSeq(ThreadState* thread) { DoWrite(thread, true); }
- void WriteRandom(ThreadState* thread) {
- DoWrite(thread, false);
- }
+ void WriteRandom(ThreadState* thread) { DoWrite(thread, false); }
void DoWrite(ThreadState* thread, bool seq) {
if (num_ != FLAGS_num) {
@@ -728,7 +724,7 @@ class Benchmark {
for (int i = 0; i < num_; i += entries_per_batch_) {
batch.Clear();
for (int j = 0; j < entries_per_batch_; j++) {
- const int k = seq ? i+j : (thread->rand.Next() % FLAGS_num);
+ const int k = seq ? i + j : (thread->rand.Next() % FLAGS_num);
char key[100];
snprintf(key, sizeof(key), "%016d", k);
batch.Put(key, gen.Generate(value_size_));
@@ -838,7 +834,7 @@ class Benchmark {
for (int i = 0; i < num_; i += entries_per_batch_) {
batch.Clear();
for (int j = 0; j < entries_per_batch_; j++) {
- const int k = seq ? i+j : (thread->rand.Next() % FLAGS_num);
+ const int k = seq ? i + j : (thread->rand.Next() % FLAGS_num);
char key[100];
snprintf(key, sizeof(key), "%016d", k);
batch.Delete(key);
@@ -852,13 +848,9 @@ class Benchmark {
}
}
- void DeleteSeq(ThreadState* thread) {
- DoDelete(thread, true);
- }
+ void DeleteSeq(ThreadState* thread) { DoDelete(thread, true); }
- void DeleteRandom(ThreadState* thread) {
- DoDelete(thread, false);
- }
+ void DeleteRandom(ThreadState* thread) { DoDelete(thread, false); }
void ReadWhileWriting(ThreadState* thread) {
if (thread->tid > 0) {
@@ -890,9 +882,7 @@ class Benchmark {
}
}
- void Compact(ThreadState* thread) {
- db_->CompactRange(nullptr, nullptr);
- }
+ void Compact(ThreadState* thread) { db_->CompactRange(nullptr, nullptr); }
void PrintStats(const char* key) {
std::string stats;
@@ -982,9 +972,9 @@ int main(int argc, char** argv) {
// Choose a location for the test database if none given with --db=<path>
if (FLAGS_db == nullptr) {
- leveldb::g_env->GetTestDirectory(&default_db_path);
- default_db_path += "/dbbench";
- FLAGS_db = default_db_path.c_str();
+ leveldb::g_env->GetTestDirectory(&default_db_path);
+ default_db_path += "/dbbench";
+ FLAGS_db = default_db_path.c_str();
}
leveldb::Benchmark benchmark;
diff --git a/db/db_impl.cc b/db/db_impl.cc
index caef2b1..bff2d62 100644
--- a/db/db_impl.cc
+++ b/db/db_impl.cc
@@ -75,7 +75,7 @@ struct DBImpl::CompactionState {
uint64_t total_bytes;
- Output* current_output() { return &outputs[outputs.size()-1]; }
+ Output* current_output() { return &outputs[outputs.size() - 1]; }
explicit CompactionState(Compaction* c)
: compaction(c),
@@ -98,10 +98,10 @@ Options SanitizeOptions(const std::string& dbname,
Options result = src;
result.comparator = icmp;
result.filter_policy = (src.filter_policy != nullptr) ? ipolicy : nullptr;
- ClipToRange(&result.max_open_files, 64 + kNumNonTableCacheFiles, 50000);
- ClipToRange(&result.write_buffer_size, 64<<10, 1<<30);
- ClipToRange(&result.max_file_size, 1<<20, 1<<30);
- ClipToRange(&result.block_size, 1<<10, 4<<20);
+ ClipToRange(&result.max_open_files, 64 + kNumNonTableCacheFiles, 50000);
+ ClipToRange(&result.write_buffer_size, 64 << 10, 1 << 30);
+ ClipToRange(&result.max_file_size, 1 << 20, 1 << 30);
+ ClipToRange(&result.block_size, 1 << 10, 4 << 20);
if (result.info_log == nullptr) {
// Open a log file in the same directory as the db
src.env->CreateDir(dbname); // In case it does not exist
@@ -268,8 +268,7 @@ void DBImpl::DeleteObsoleteFiles() {
if (type == kTableFile) {
table_cache_->Evict(number);
}
- Log(options_.info_log, "Delete type=%d #%lld\n",
- static_cast<int>(type),
+ Log(options_.info_log, "Delete type=%d #%lld\n", static_cast<int>(type),
static_cast<unsigned long long>(number));
env_->DeleteFile(dbname_ + "/" + filenames[i]);
}
@@ -277,7 +276,7 @@ void DBImpl::DeleteObsoleteFiles() {
}
}
-Status DBImpl::Recover(VersionEdit* edit, bool *save_manifest) {
+Status DBImpl::Recover(VersionEdit* edit, bool* save_manifest) {
mutex_.AssertHeld();
// Ignore error from CreateDir since the creation of the DB is
@@ -302,8 +301,8 @@ Status DBImpl::Recover(VersionEdit* edit, bool *save_manifest) {
}
} else {
if (options_.error_if_exists) {
- return Status::InvalidArgument(
- dbname_, "exists (error_if_exists is true)");
+ return Status::InvalidArgument(dbname_,
+ "exists (error_if_exists is true)");
}
}
@@ -378,8 +377,8 @@ Status DBImpl::RecoverLogFile(uint64_t log_number, bool last_log,
Status* status; // null if options_.paranoid_checks==false
virtual void Corruption(size_t bytes, const Status& s) {
Log(info_log, "%s%s: dropping %d bytes; %s",
- (this->status == nullptr ? "(ignoring error) " : ""),
- fname, static_cast<int>(bytes), s.ToString().c_str());
+ (this->status == nullptr ? "(ignoring error) " : ""), fname,
+ static_cast<int>(bytes), s.ToString().c_str());
if (this->status != nullptr && this->status->ok()) *this->status = s;
}
};
@@ -405,10 +404,9 @@ Status DBImpl::RecoverLogFile(uint64_t log_number, bool last_log,
// paranoid_checks==false so that corruptions cause entire commits
// to be skipped instead of propagating bad information (like overly
// large sequence numbers).
- log::Reader reader(file, &reporter, true/*checksum*/,
- 0/*initial_offset*/);
+ log::Reader reader(file, &reporter, true /*checksum*/, 0 /*initial_offset*/);
Log(options_.info_log, "Recovering log #%llu",
- (unsigned long long) log_number);
+ (unsigned long long)log_number);
// Read all the records and add to a memtable
std::string scratch;
@@ -416,11 +414,10 @@ Status DBImpl::RecoverLogFile(uint64_t log_number, bool last_log,
WriteBatch batch;
int compactions = 0;
MemTable* mem = nullptr;
- while (reader.ReadRecord(&record, &scratch) &&
- status.ok()) {
+ while (reader.ReadRecord(&record, &scratch) && status.ok()) {
if (record.size() < 12) {
- reporter.Corruption(
- record.size(), Status::Corruption("log record too small"));
+ reporter.Corruption(record.size(),
+ Status::Corruption("log record too small"));
continue;
}
WriteBatchInternal::SetContents(&batch, record);
@@ -434,9 +431,8 @@ Status DBImpl::RecoverLogFile(uint64_t log_number, bool last_log,
if (!status.ok()) {
break;
}
- const SequenceNumber last_seq =
- WriteBatchInternal::Sequence(&batch) +
- WriteBatchInternal::Count(&batch) - 1;
+ const SequenceNumber last_seq = WriteBatchInternal::Sequence(&batch) +
+ WriteBatchInternal::Count(&batch) - 1;
if (last_seq > *max_sequence) {
*max_sequence = last_seq;
}
@@ -500,7 +496,7 @@ Status DBImpl::WriteLevel0Table(MemTable* mem, VersionEdit* edit,
pending_outputs_.insert(meta.number);
Iterator* iter = mem->NewIterator();
Log(options_.info_log, "Level-0 table #%llu: started",
- (unsigned long long) meta.number);
+ (unsigned long long)meta.number);
Status s;
{
@@ -510,13 +506,11 @@ Status DBImpl::WriteLevel0Table(MemTable* mem, VersionEdit* edit,
}
Log(options_.info_log, "Level-0 table #%llu: %lld bytes %s",
- (unsigned long long) meta.number,
- (unsigned long long) meta.file_size,
+ (unsigned long long)meta.number, (unsigned long long)meta.file_size,
s.ToString().c_str());
delete iter;
pending_outputs_.erase(meta.number);
-
// Note that if file_size is zero, the file has been deleted and
// should not be added to the manifest.
int level = 0;
@@ -526,8 +520,8 @@ Status DBImpl::WriteLevel0Table(MemTable* mem, VersionEdit* edit,
if (base != nullptr) {
level = base->PickLevelForMemTableOutput(min_user_key, max_user_key);
}
- edit->AddFile(level, meta.number, meta.file_size,
- meta.smallest, meta.largest);
+ edit->AddFile(level, meta.number, meta.file_size, meta.smallest,
+ meta.largest);
}
CompactionStats stats;
@@ -658,8 +652,7 @@ void DBImpl::MaybeScheduleCompaction() {
// DB is being deleted; no more background compactions
} else if (!bg_error_.ok()) {
// Already got an error; no more changes
- } else if (imm_ == nullptr &&
- manual_compaction_ == nullptr &&
+ } else if (imm_ == nullptr && manual_compaction_ == nullptr &&
!versions_->NeedsCompaction()) {
// No work to be done
} else {
@@ -711,8 +704,7 @@ void DBImpl::BackgroundCompaction() {
}
Log(options_.info_log,
"Manual compaction at level-%d from %s .. %s; will stop at %s\n",
- m->level,
- (m->begin ? m->begin->DebugString().c_str() : "(begin)"),
+ m->level, (m->begin ? m->begin->DebugString().c_str() : "(begin)"),
(m->end ? m->end->DebugString().c_str() : "(end)"),
(m->done ? "(end)" : manual_end.DebugString().c_str()));
} else {
@@ -727,19 +719,17 @@ void DBImpl::BackgroundCompaction() {
assert(c->num_input_files(0) == 1);
FileMetaData* f = c->input(0, 0);
c->edit()->DeleteFile(c->level(), f->number);
- c->edit()->AddFile(c->level() + 1, f->number, f->file_size,
- f->smallest, f->largest);
+ c->edit()->AddFile(c->level() + 1, f->number, f->file_size, f->smallest,
+ f->largest);
status = versions_->LogAndApply(c->edit(), &mutex_);
if (!status.ok()) {
RecordBackgroundError(status);
}
VersionSet::LevelSummaryStorage tmp;
Log(options_.info_log, "Moved #%lld to level-%d %lld bytes %s: %s\n",
- static_cast<unsigned long long>(f->number),
- c->level() + 1,
+ static_cast<unsigned long long>(f->number), c->level() + 1,
static_cast<unsigned long long>(f->file_size),
- status.ToString().c_str(),
- versions_->LevelSummary(&tmp));
+ status.ToString().c_str(), versions_->LevelSummary(&tmp));
} else {
CompactionState* compact = new CompactionState(c);
status = DoCompactionWork(compact);
@@ -757,8 +747,7 @@ void DBImpl::BackgroundCompaction() {
} else if (shutting_down_.load(std::memory_order_acquire)) {
// Ignore compaction errors found during shutting down
} else {
- Log(options_.info_log,
- "Compaction error: %s", status.ToString().c_str());
+ Log(options_.info_log, "Compaction error: %s", status.ToString().c_str());
}
if (is_manual) {
@@ -853,31 +842,25 @@ Status DBImpl::FinishCompactionOutputFile(CompactionState* compact,
if (s.ok() && current_entries > 0) {
// Verify that the table is usable
- Iterator* iter = table_cache_->NewIterator(ReadOptions(),
- output_number,
- current_bytes);
+ Iterator* iter =
+ table_cache_->NewIterator(ReadOptions(), output_number, current_bytes);
s = iter->status();
delete iter;
if (s.ok()) {
- Log(options_.info_log,
- "Generated table #%llu@%d: %lld keys, %lld bytes",
- (unsigned long long) output_number,
- compact->compaction->level(),
- (unsigned long long) current_entries,
- (unsigned long long) current_bytes);
+ Log(options_.info_log, "Generated table #%llu@%d: %lld keys, %lld bytes",
+ (unsigned long long)output_number, compact->compaction->level(),
+ (unsigned long long)current_entries,
+ (unsigned long long)current_bytes);
}
}
return s;
}
-
Status DBImpl::InstallCompactionResults(CompactionState* compact) {
mutex_.AssertHeld();
- Log(options_.info_log, "Compacted %d@%d + %d@%d files => %lld bytes",
- compact->compaction->num_input_files(0),
- compact->compaction->level(),
- compact->compaction->num_input_files(1),
- compact->compaction->level() + 1,
+ Log(options_.info_log, "Compacted %d@%d + %d@%d files => %lld bytes",
+ compact->compaction->num_input_files(0), compact->compaction->level(),
+ compact->compaction->num_input_files(1), compact->compaction->level() + 1,
static_cast<long long>(compact->total_bytes));
// Add compaction outputs
@@ -885,9 +868,8 @@ Status DBImpl::InstallCompactionResults(CompactionState* compact) {
const int level = compact->compaction->level();
for (size_t i = 0; i < compact->outputs.size(); i++) {
const CompactionState::Output& out = compact->outputs[i];
- compact->compaction->edit()->AddFile(
- level + 1,
- out.number, out.file_size, out.smallest, out.largest);
+ compact->compaction->edit()->AddFile(level + 1, out.number, out.file_size,
+ out.smallest, out.largest);
}
return versions_->LogAndApply(compact->compaction->edit(), &mutex_);
}
@@ -896,9 +878,8 @@ Status DBImpl::DoCompactionWork(CompactionState* compact) {
const uint64_t start_micros = env_->NowMicros();
int64_t imm_micros = 0; // Micros spent doing imm_ compactions
- Log(options_.info_log, "Compacting %d@%d + %d@%d files",
- compact->compaction->num_input_files(0),
- compact->compaction->level(),
+ Log(options_.info_log, "Compacting %d@%d + %d@%d files",
+ compact->compaction->num_input_files(0), compact->compaction->level(),
compact->compaction->num_input_files(1),
compact->compaction->level() + 1);
@@ -921,7 +902,7 @@ Status DBImpl::DoCompactionWork(CompactionState* compact) {
std::string current_user_key;
bool has_current_user_key = false;
SequenceNumber last_sequence_for_key = kMaxSequenceNumber;
- for (; input->Valid() && !shutting_down_.load(std::memory_order_acquire); ) {
+ for (; input->Valid() && !shutting_down_.load(std::memory_order_acquire);) {
// Prioritize immutable compaction work
if (has_imm_.load(std::memory_order_relaxed)) {
const uint64_t imm_start = env_->NowMicros();
@@ -953,8 +934,8 @@ Status DBImpl::DoCompactionWork(CompactionState* compact) {
last_sequence_for_key = kMaxSequenceNumber;
} else {
if (!has_current_user_key ||
- user_comparator()->Compare(ikey.user_key,
- Slice(current_user_key)) != 0) {
+ user_comparator()->Compare(ikey.user_key, Slice(current_user_key)) !=
+ 0) {
// First occurrence of this user key
current_user_key.assign(ikey.user_key.data(), ikey.user_key.size());
has_current_user_key = true;
@@ -963,7 +944,7 @@ Status DBImpl::DoCompactionWork(CompactionState* compact) {
if (last_sequence_for_key <= compact->smallest_snapshot) {
// Hidden by an newer entry for same user key
- drop = true; // (A)
+ drop = true; // (A)
} else if (ikey.type == kTypeDeletion &&
ikey.sequence <= compact->smallest_snapshot &&
compact->compaction->IsBaseLevelForKey(ikey.user_key)) {
@@ -1049,8 +1030,7 @@ Status DBImpl::DoCompactionWork(CompactionState* compact) {
RecordBackgroundError(status);
}
VersionSet::LevelSummaryStorage tmp;
- Log(options_.info_log,
- "compacted to: %s", versions_->LevelSummary(&tmp));
+ Log(options_.info_log, "compacted to: %s", versions_->LevelSummary(&tmp));
return status;
}
@@ -1063,7 +1043,7 @@ struct IterState {
MemTable* const imm GUARDED_BY(mu);
IterState(port::Mutex* mutex, MemTable* mem, MemTable* imm, Version* version)
- : mu(mutex), version(version), mem(mem), imm(imm) { }
+ : mu(mutex), version(version), mem(mem), imm(imm) {}
};
static void CleanupIteratorState(void* arg1, void* arg2) {
@@ -1116,8 +1096,7 @@ int64_t DBImpl::TEST_MaxNextLevelOverlappingBytes() {
return versions_->MaxNextLevelOverlappingBytes();
}
-Status DBImpl::Get(const ReadOptions& options,
- const Slice& key,
+Status DBImpl::Get(const ReadOptions& options, const Slice& key,
std::string* value) {
Status s;
MutexLock l(&mutex_);
@@ -1168,12 +1147,12 @@ Iterator* DBImpl::NewIterator(const ReadOptions& options) {
SequenceNumber latest_snapshot;
uint32_t seed;
Iterator* iter = NewInternalIterator(options, &latest_snapshot, &seed);
- return NewDBIterator(
- this, user_comparator(), iter,
- (options.snapshot != nullptr
- ? static_cast<const SnapshotImpl*>(options.snapshot)->sequence_number()
- : latest_snapshot),
- seed);
+ return NewDBIterator(this, user_comparator(), iter,
+ (options.snapshot != nullptr
+ ? static_cast<const SnapshotImpl*>(options.snapshot)
+ ->sequence_number()
+ : latest_snapshot),
+ seed);
}
void DBImpl::RecordReadSample(Slice key) {
@@ -1202,9 +1181,9 @@ Status DBImpl::Delete(const WriteOptions& options, const Slice& key) {
return DB::Delete(options, key);
}
-Status DBImpl::Write(const WriteOptions& options, WriteBatch* my_batch) {
+Status DBImpl::Write(const WriteOptions& options, WriteBatch* updates) {
Writer w(&mutex_);
- w.batch = my_batch;
+ w.batch = updates;
w.sync = options.sync;
w.done = false;
@@ -1218,10 +1197,10 @@ Status DBImpl::Write(const WriteOptions& options, WriteBatch* my_batch) {
}
// May temporarily unlock and wait.
- Status status = MakeRoomForWrite(my_batch == nullptr);
+ Status status = MakeRoomForWrite(updates == nullptr);
uint64_t last_sequence = versions_->LastSequence();
Writer* last_writer = &w;
- if (status.ok() && my_batch != nullptr) { // nullptr batch is for compactions
+ if (status.ok() && updates != nullptr) { // nullptr batch is for compactions
WriteBatch* updates = BuildBatchGroup(&last_writer);
WriteBatchInternal::SetSequence(updates, last_sequence + 1);
last_sequence += WriteBatchInternal::Count(updates);
@@ -1290,8 +1269,8 @@ WriteBatch* DBImpl::BuildBatchGroup(Writer** last_writer) {
// original write is small, limit the growth so we do not slow
// down the small write too much.
size_t max_size = 1 << 20;
- if (size <= (128<<10)) {
- max_size = size + (128<<10);
+ if (size <= (128 << 10)) {
+ max_size = size + (128 << 10);
}
*last_writer = first;
@@ -1337,9 +1316,8 @@ Status DBImpl::MakeRoomForWrite(bool force) {
// Yield previous error
s = bg_error_;
break;
- } else if (
- allow_delay &&
- versions_->NumLevelFiles(0) >= config::kL0_SlowdownWritesTrigger) {
+ } else if (allow_delay && versions_->NumLevelFiles(0) >=
+ config::kL0_SlowdownWritesTrigger) {
// We are getting close to hitting a hard limit on the number of
// L0 files. Rather than delaying a single write by several
// seconds when we hit the hard limit, start delaying each
@@ -1383,7 +1361,7 @@ Status DBImpl::MakeRoomForWrite(bool force) {
has_imm_.store(true, std::memory_order_release);
mem_ = new MemTable(internal_comparator_);
mem_->Ref();
- force = false; // Do not force another compaction if have room
+ force = false; // Do not force another compaction if have room
MaybeScheduleCompaction();
}
}
@@ -1417,21 +1395,16 @@ bool DBImpl::GetProperty(const Slice& property, std::string* value) {
snprintf(buf, sizeof(buf),
" Compactions\n"
"Level Files Size(MB) Time(sec) Read(MB) Write(MB)\n"
- "--------------------------------------------------\n"
- );
+ "--------------------------------------------------\n");
value->append(buf);
for (int level = 0; level < config::kNumLevels; level++) {
int files = versions_->NumLevelFiles(level);
if (stats_[level].micros > 0 || files > 0) {
- snprintf(
- buf, sizeof(buf),
- "%3d %8d %8.0f %9.0f %8.0f %9.0f\n",
- level,
- files,
- versions_->NumLevelBytes(level) / 1048576.0,
- stats_[level].micros / 1e6,
- stats_[level].bytes_read / 1048576.0,
- stats_[level].bytes_written / 1048576.0);
+ snprintf(buf, sizeof(buf), "%3d %8d %8.0f %9.0f %8.0f %9.0f\n", level,
+ files, versions_->NumLevelBytes(level) / 1048576.0,
+ stats_[level].micros / 1e6,
+ stats_[level].bytes_read / 1048576.0,
+ stats_[level].bytes_written / 1048576.0);
value->append(buf);
}
}
@@ -1457,9 +1430,7 @@ bool DBImpl::GetProperty(const Slice& property, std::string* value) {
return false;
}
-void DBImpl::GetApproximateSizes(
- const Range* range, int n,
- uint64_t* sizes) {
+void DBImpl::GetApproximateSizes(const Range* range, int n, uint64_t* sizes) {
// TODO(opt): better implementation
Version* v;
{
@@ -1497,10 +1468,9 @@ Status DB::Delete(const WriteOptions& opt, const Slice& key) {
return Write(opt, &batch);
}
-DB::~DB() { }
+DB::~DB() {}
-Status DB::Open(const Options& options, const std::string& dbname,
- DB** dbptr) {
+Status DB::Open(const Options& options, const std::string& dbname, DB** dbptr) {
*dbptr = nullptr;
DBImpl* impl = new DBImpl(options, dbname);
@@ -1543,8 +1513,7 @@ Status DB::Open(const Options& options, const std::string& dbname,
return s;
}
-Snapshot::~Snapshot() {
-}
+Snapshot::~Snapshot() {}
Status DestroyDB(const std::string& dbname, const Options& options) {
Env* env = options.env;
diff --git a/db/db_impl.h b/db/db_impl.h
index ca00d42..c895952 100644
--- a/db/db_impl.h
+++ b/db/db_impl.h
@@ -35,8 +35,7 @@ class DBImpl : public DB {
virtual Status Put(const WriteOptions&, const Slice& key, const Slice& value);
virtual Status Delete(const WriteOptions&, const Slice& key);
virtual Status Write(const WriteOptions& options, WriteBatch* updates);
- virtual Status Get(const ReadOptions& options,
- const Slice& key,
+ virtual Status Get(const ReadOptions& options, const Slice& key,
std::string* value);
virtual Iterator* NewIterator(const ReadOptions&);
virtual const Snapshot* GetSnapshot();
@@ -166,9 +165,9 @@ class DBImpl : public DB {
struct ManualCompaction {
int level;
bool done;
- const InternalKey* begin; // null means beginning of key range
- const InternalKey* end; // null means end of key range
- InternalKey tmp_storage; // Used to keep track of compaction progress
+ const InternalKey* begin; // null means beginning of key range
+ const InternalKey* end; // null means end of key range
+ InternalKey tmp_storage; // Used to keep track of compaction progress
};
ManualCompaction* manual_compaction_ GUARDED_BY(mutex_);
@@ -184,7 +183,7 @@ class DBImpl : public DB {
int64_t bytes_read;
int64_t bytes_written;
- CompactionStats() : micros(0), bytes_read(0), bytes_written(0) { }
+ CompactionStats() : micros(0), bytes_read(0), bytes_written(0) {}
void Add(const CompactionStats& c) {
this->micros += c.micros;
diff --git a/db/db_iter.cc b/db/db_iter.cc
index 4d0f42e..1e5b5e2 100644
--- a/db/db_iter.cc
+++ b/db/db_iter.cc
@@ -4,9 +4,9 @@
#include "db/db_iter.h"
-#include "db/filename.h"
#include "db/db_impl.h"
#include "db/dbformat.h"
+#include "db/filename.h"
#include "leveldb/env.h"
#include "leveldb/iterator.h"
#include "port/port.h"
@@ -36,17 +36,14 @@ namespace {
// combines multiple entries for the same userkey found in the DB
// representation into a single entry while accounting for sequence
// numbers, deletion markers, overwrites, etc.
-class DBIter: public Iterator {
+class DBIter : public Iterator {
public:
// Which direction is the iterator currently moving?
// (1) When moving forward, the internal iterator is positioned at
// the exact entry that yields this->key(), this->value()
// (2) When moving backwards, the internal iterator is positioned
// just before all entries whose user key == this->key().
- enum Direction {
- kForward,
- kReverse
- };
+ enum Direction { kForward, kReverse };
DBIter(DBImpl* db, const Comparator* cmp, Iterator* iter, SequenceNumber s,
uint32_t seed)
@@ -57,11 +54,8 @@ class DBIter: public Iterator {
direction_(kForward),
valid_(false),
rnd_(seed),
- bytes_until_read_sampling_(RandomCompactionPeriod()) {
- }
- virtual ~DBIter() {
- delete iter_;
- }
+ bytes_until_read_sampling_(RandomCompactionPeriod()) {}
+ virtual ~DBIter() { delete iter_; }
virtual bool Valid() const { return valid_; }
virtual Slice key() const {
assert(valid_);
@@ -105,7 +99,7 @@ class DBIter: public Iterator {
// Picks the number of bytes that can be read until a compaction is scheduled.
size_t RandomCompactionPeriod() {
- return rnd_.Uniform(2*config::kReadBytesPeriod);
+ return rnd_.Uniform(2 * config::kReadBytesPeriod);
}
DBImpl* db_;
@@ -114,8 +108,8 @@ class DBIter: public Iterator {
SequenceNumber const sequence_;
Status status_;
- std::string saved_key_; // == current key when direction_==kReverse
- std::string saved_value_; // == current raw value when direction_==kReverse
+ std::string saved_key_; // == current key when direction_==kReverse
+ std::string saved_value_; // == current raw value when direction_==kReverse
Direction direction_;
bool valid_;
@@ -221,8 +215,8 @@ void DBIter::Prev() {
ClearSavedValue();
return;
}
- if (user_comparator_->Compare(ExtractUserKey(iter_->key()),
- saved_key_) < 0) {
+ if (user_comparator_->Compare(ExtractUserKey(iter_->key()), saved_key_) <
+ 0) {
break;
}
}
@@ -278,8 +272,8 @@ void DBIter::Seek(const Slice& target) {
direction_ = kForward;
ClearSavedValue();
saved_key_.clear();
- AppendInternalKey(
- &saved_key_, ParsedInternalKey(target, sequence_, kValueTypeForSeek));
+ AppendInternalKey(&saved_key_,
+ ParsedInternalKey(target, sequence_, kValueTypeForSeek));
iter_->Seek(saved_key_);
if (iter_->Valid()) {
FindNextUserEntry(false, &saved_key_ /* temporary storage */);
@@ -308,12 +302,9 @@ void DBIter::SeekToLast() {
} // anonymous namespace
-Iterator* NewDBIterator(
- DBImpl* db,
- const Comparator* user_key_comparator,
- Iterator* internal_iter,
- SequenceNumber sequence,
- uint32_t seed) {
+Iterator* NewDBIterator(DBImpl* db, const Comparator* user_key_comparator,
+ Iterator* internal_iter, SequenceNumber sequence,
+ uint32_t seed) {
return new DBIter(db, user_key_comparator, internal_iter, sequence, seed);
}
diff --git a/db/db_iter.h b/db/db_iter.h
index 262840e..fd93e91 100644
--- a/db/db_iter.h
+++ b/db/db_iter.h
@@ -6,8 +6,9 @@
#define STORAGE_LEVELDB_DB_DB_ITER_H_
#include <stdint.h>
-#include "leveldb/db.h"
+
#include "db/dbformat.h"
+#include "leveldb/db.h"
namespace leveldb {
@@ -16,10 +17,8 @@ class DBImpl;
// Return a new iterator that converts internal keys (yielded by
// "*internal_iter") that were live at the specified "sequence" number
// into appropriate user keys.
-Iterator* NewDBIterator(DBImpl* db,
- const Comparator* user_key_comparator,
- Iterator* internal_iter,
- SequenceNumber sequence,
+Iterator* NewDBIterator(DBImpl* db, const Comparator* user_key_comparator,
+ Iterator* internal_iter, SequenceNumber sequence,
uint32_t seed);
} // namespace leveldb
diff --git a/db/db_test.cc b/db/db_test.cc
index 3ab4aee..4343216 100644
--- a/db/db_test.cc
+++ b/db/db_test.cc
@@ -2,17 +2,18 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
+#include "leveldb/db.h"
+
#include <atomic>
#include <string>
-#include "leveldb/db.h"
-#include "leveldb/filter_policy.h"
#include "db/db_impl.h"
#include "db/filename.h"
#include "db/version_set.h"
#include "db/write_batch_internal.h"
#include "leveldb/cache.h"
#include "leveldb/env.h"
+#include "leveldb/filter_policy.h"
#include "leveldb/table.h"
#include "port/port.h"
#include "port/thread_annotations.h"
@@ -31,9 +32,9 @@ static std::string RandomString(Random* rnd, int len) {
}
static std::string RandomKey(Random* rnd) {
- int len = (rnd->OneIn(3)
- ? 1 // Short sometimes to encourage collisions
- : (rnd->OneIn(100) ? rnd->Skewed(10) : rnd->Uniform(10)));
+ int len =
+ (rnd->OneIn(3) ? 1 // Short sometimes to encourage collisions
+ : (rnd->OneIn(100) ? rnd->Skewed(10) : rnd->Uniform(10)));
return test::RandomKey(rnd, len);
}
@@ -42,11 +43,10 @@ class AtomicCounter {
private:
port::Mutex mu_;
int count_ GUARDED_BY(mu_);
+
public:
- AtomicCounter() : count_(0) { }
- void Increment() {
- IncrementBy(1);
- }
+ AtomicCounter() : count_(0) {}
+ void Increment() { IncrementBy(1); }
void IncrementBy(int count) LOCKS_EXCLUDED(mu_) {
MutexLock l(&mu_);
count_ += count;
@@ -120,15 +120,15 @@ class SpecialEnv : public EnvWrapper {
bool count_random_reads_;
AtomicCounter random_read_counter_;
- explicit SpecialEnv(Env* base) : EnvWrapper(base),
- delay_data_sync_(false),
- data_sync_error_(false),
- no_space_(false),
- non_writable_(false),
- manifest_sync_error_(false),
- manifest_write_error_(false),
- count_random_reads_(false) {
- }
+ explicit SpecialEnv(Env* base)
+ : EnvWrapper(base),
+ delay_data_sync_(false),
+ data_sync_error_(false),
+ no_space_(false),
+ non_writable_(false),
+ manifest_sync_error_(false),
+ manifest_write_error_(false),
+ count_random_reads_(false) {}
Status NewWritableFile(const std::string& f, WritableFile** r) {
class DataFile : public WritableFile {
@@ -137,10 +137,7 @@ class SpecialEnv : public EnvWrapper {
WritableFile* const base_;
public:
- DataFile(SpecialEnv* env, WritableFile* base)
- : env_(env),
- base_(base) {
- }
+ DataFile(SpecialEnv* env, WritableFile* base) : env_(env), base_(base) {}
~DataFile() { delete base_; }
Status Append(const Slice& data) {
if (env_->no_space_.load(std::memory_order_acquire)) {
@@ -166,8 +163,9 @@ class SpecialEnv : public EnvWrapper {
private:
SpecialEnv* env_;
WritableFile* base_;
+
public:
- ManifestFile(SpecialEnv* env, WritableFile* b) : env_(env), base_(b) { }
+ ManifestFile(SpecialEnv* env, WritableFile* b) : env_(env), base_(b) {}
~ManifestFile() { delete base_; }
Status Append(const Slice& data) {
if (env_->manifest_write_error_.load(std::memory_order_acquire)) {
@@ -208,10 +206,10 @@ class SpecialEnv : public EnvWrapper {
private:
RandomAccessFile* target_;
AtomicCounter* counter_;
+
public:
CountingFile(RandomAccessFile* target, AtomicCounter* counter)
- : target_(target), counter_(counter) {
- }
+ : target_(target), counter_(counter) {}
virtual ~CountingFile() { delete target_; }
virtual Status Read(uint64_t offset, size_t n, Slice* result,
char* scratch) const {
@@ -233,13 +231,7 @@ class DBTest {
const FilterPolicy* filter_policy_;
// Sequence of option configurations to try
- enum OptionConfig {
- kDefault,
- kReuse,
- kFilter,
- kUncompressed,
- kEnd
- };
+ enum OptionConfig { kDefault, kReuse, kFilter, kUncompressed, kEnd };
int option_config_;
public:
@@ -249,8 +241,7 @@ class DBTest {
Options last_options_;
- DBTest() : option_config_(kDefault),
- env_(new SpecialEnv(Env::Default())) {
+ DBTest() : option_config_(kDefault), env_(new SpecialEnv(Env::Default())) {
filter_policy_ = NewBloomFilterPolicy(10);
dbname_ = test::TmpDir() + "/db_test";
DestroyDB(dbname_, Options());
@@ -297,13 +288,9 @@ class DBTest {
return options;
}
- DBImpl* dbfull() {
- return reinterpret_cast<DBImpl*>(db_);
- }
+ DBImpl* dbfull() { return reinterpret_cast<DBImpl*>(db_); }
- void Reopen(Options* options = nullptr) {
- ASSERT_OK(TryReopen(options));
- }
+ void Reopen(Options* options = nullptr) { ASSERT_OK(TryReopen(options)); }
void Close() {
delete db_;
@@ -336,9 +323,7 @@ class DBTest {
return db_->Put(WriteOptions(), k, v);
}
- Status Delete(const std::string& k) {
- return db_->Delete(WriteOptions(), k);
- }
+ Status Delete(const std::string& k) { return db_->Delete(WriteOptions(), k); }
std::string Get(const std::string& k, const Snapshot* snapshot = nullptr) {
ReadOptions options;
@@ -424,9 +409,8 @@ class DBTest {
int NumTableFilesAtLevel(int level) {
std::string property;
- ASSERT_TRUE(
- db_->GetProperty("leveldb.num-files-at-level" + NumberToString(level),
- &property));
+ ASSERT_TRUE(db_->GetProperty(
+ "leveldb.num-files-at-level" + NumberToString(level), &property));
return std::stoi(property);
}
@@ -491,9 +475,9 @@ class DBTest {
void DumpFileCounts(const char* label) {
fprintf(stderr, "---\n%s:\n", label);
- fprintf(stderr, "maxoverlap: %lld\n",
- static_cast<long long>(
- dbfull()->TEST_MaxNextLevelOverlappingBytes()));
+ fprintf(
+ stderr, "maxoverlap: %lld\n",
+ static_cast<long long>(dbfull()->TEST_MaxNextLevelOverlappingBytes()));
for (int level = 0; level < config::kNumLevels; level++) {
int num = NumTableFilesAtLevel(level);
if (num > 0) {
@@ -612,8 +596,8 @@ TEST(DBTest, GetFromImmutableLayer) {
// Block sync calls.
env_->delay_data_sync_.store(true, std::memory_order_release);
- Put("k1", std::string(100000, 'x')); // Fill memtable.
- Put("k2", std::string(100000, 'y')); // Trigger compaction.
+ Put("k1", std::string(100000, 'x')); // Fill memtable.
+ Put("k2", std::string(100000, 'y')); // Trigger compaction.
ASSERT_EQ("v1", Get("foo"));
// Release sync calls.
env_->delay_data_sync_.store(false, std::memory_order_release);
@@ -635,7 +619,7 @@ TEST(DBTest, GetMemUsage) {
ASSERT_TRUE(db_->GetProperty("leveldb.approximate-memory-usage", &val));
int mem_usage = std::stoi(val);
ASSERT_GT(mem_usage, 0);
- ASSERT_LT(mem_usage, 5*1024*1024);
+ ASSERT_LT(mem_usage, 5 * 1024 * 1024);
} while (ChangeOptions());
}
@@ -760,8 +744,7 @@ TEST(DBTest, GetEncountersEmptyLevel) {
// Step 1: First place sstables in levels 0 and 2
int compaction_count = 0;
- while (NumTableFilesAtLevel(0) == 0 ||
- NumTableFilesAtLevel(2) == 0) {
+ while (NumTableFilesAtLevel(0) == 0 || NumTableFilesAtLevel(2) == 0) {
ASSERT_LE(compaction_count, 100) << "could not fill levels 0 and 2";
compaction_count++;
Put("a", "begin");
@@ -898,10 +881,10 @@ TEST(DBTest, IterMulti) {
ASSERT_EQ(IterStatus(iter), "b->vb");
// Make sure iter stays at snapshot
- ASSERT_OK(Put("a", "va2"));
+ ASSERT_OK(Put("a", "va2"));
ASSERT_OK(Put("a2", "va3"));
- ASSERT_OK(Put("b", "vb2"));
- ASSERT_OK(Put("c", "vc2"));
+ ASSERT_OK(Put("b", "vb2"));
+ ASSERT_OK(Put("c", "vc2"));
ASSERT_OK(Delete("b"));
iter->SeekToFirst();
ASSERT_EQ(IterStatus(iter), "a->va");
@@ -1092,7 +1075,7 @@ TEST(DBTest, RecoverWithLargeLog) {
TEST(DBTest, CompactionsGenerateMultipleFiles) {
Options options = CurrentOptions();
- options.write_buffer_size = 100000000; // Large write buffer
+ options.write_buffer_size = 100000000; // Large write buffer
Reopen(&options);
Random rnd(301);
@@ -1161,26 +1144,25 @@ TEST(DBTest, SparseMerge) {
dbfull()->TEST_CompactRange(0, nullptr, nullptr);
// Make sparse update
- Put("A", "va2");
+ Put("A", "va2");
Put("B100", "bvalue2");
- Put("C", "vc2");
+ Put("C", "vc2");
dbfull()->TEST_CompactMemTable();
// Compactions should not cause us to create a situation where
// a file overlaps too much data at the next level.
- ASSERT_LE(dbfull()->TEST_MaxNextLevelOverlappingBytes(), 20*1048576);
+ ASSERT_LE(dbfull()->TEST_MaxNextLevelOverlappingBytes(), 20 * 1048576);
dbfull()->TEST_CompactRange(0, nullptr, nullptr);
- ASSERT_LE(dbfull()->TEST_MaxNextLevelOverlappingBytes(), 20*1048576);
+ ASSERT_LE(dbfull()->TEST_MaxNextLevelOverlappingBytes(), 20 * 1048576);
dbfull()->TEST_CompactRange(1, nullptr, nullptr);
- ASSERT_LE(dbfull()->TEST_MaxNextLevelOverlappingBytes(), 20*1048576);
+ ASSERT_LE(dbfull()->TEST_MaxNextLevelOverlappingBytes(), 20 * 1048576);
}
static bool Between(uint64_t val, uint64_t low, uint64_t high) {
bool result = (val >= low) && (val <= high);
if (!result) {
fprintf(stderr, "Value %llu is not in range [%llu, %llu]\n",
- (unsigned long long)(val),
- (unsigned long long)(low),
+ (unsigned long long)(val), (unsigned long long)(low),
(unsigned long long)(high));
}
return result;
@@ -1189,7 +1171,7 @@ static bool Between(uint64_t val, uint64_t low, uint64_t high) {
TEST(DBTest, ApproximateSizes) {
do {
Options options = CurrentOptions();
- options.write_buffer_size = 100000000; // Large write buffer
+ options.write_buffer_size = 100000000; // Large write buffer
options.compression = kNoCompression;
DestroyAndReopen();
@@ -1224,12 +1206,13 @@ TEST(DBTest, ApproximateSizes) {
for (int compact_start = 0; compact_start < N; compact_start += 10) {
for (int i = 0; i < N; i += 10) {
- ASSERT_TRUE(Between(Size("", Key(i)), S1*i, S2*i));
- ASSERT_TRUE(Between(Size("", Key(i)+".suffix"), S1*(i+1), S2*(i+1)));
- ASSERT_TRUE(Between(Size(Key(i), Key(i+10)), S1*10, S2*10));
+ ASSERT_TRUE(Between(Size("", Key(i)), S1 * i, S2 * i));
+ ASSERT_TRUE(Between(Size("", Key(i) + ".suffix"), S1 * (i + 1),
+ S2 * (i + 1)));
+ ASSERT_TRUE(Between(Size(Key(i), Key(i + 10)), S1 * 10, S2 * 10));
}
- ASSERT_TRUE(Between(Size("", Key(50)), S1*50, S2*50));
- ASSERT_TRUE(Between(Size("", Key(50)+".suffix"), S1*50, S2*50));
+ ASSERT_TRUE(Between(Size("", Key(50)), S1 * 50, S2 * 50));
+ ASSERT_TRUE(Between(Size("", Key(50) + ".suffix"), S1 * 50, S2 * 50));
std::string cstart_str = Key(compact_start);
std::string cend_str = Key(compact_start + 9);
@@ -1348,7 +1331,7 @@ TEST(DBTest, HiddenValuesAreRemoved) {
Put("pastfoo", "v");
const Snapshot* snapshot = db_->GetSnapshot();
Put("foo", "tiny");
- Put("pastfoo2", "v2"); // Advance sequence number one more
+ Put("pastfoo2", "v2"); // Advance sequence number one more
ASSERT_OK(dbfull()->TEST_CompactMemTable());
ASSERT_GT(NumTableFilesAtLevel(0), 0);
@@ -1373,14 +1356,14 @@ TEST(DBTest, DeletionMarkers1) {
Put("foo", "v1");
ASSERT_OK(dbfull()->TEST_CompactMemTable());
const int last = config::kMaxMemCompactLevel;
- ASSERT_EQ(NumTableFilesAtLevel(last), 1); // foo => v1 is now in last level
+ ASSERT_EQ(NumTableFilesAtLevel(last), 1); // foo => v1 is now in last level
// Place a table at level last-1 to prevent merging with preceding mutation
Put("a", "begin");
Put("z", "end");
dbfull()->TEST_CompactMemTable();
ASSERT_EQ(NumTableFilesAtLevel(last), 1);
- ASSERT_EQ(NumTableFilesAtLevel(last-1), 1);
+ ASSERT_EQ(NumTableFilesAtLevel(last - 1), 1);
Delete("foo");
Put("foo", "v2");
@@ -1388,11 +1371,11 @@ TEST(DBTest, DeletionMarkers1) {
ASSERT_OK(dbfull()->TEST_CompactMemTable()); // Moves to level last-2
ASSERT_EQ(AllEntriesFor("foo"), "[ v2, DEL, v1 ]");
Slice z("z");
- dbfull()->TEST_CompactRange(last-2, nullptr, &z);
+ dbfull()->TEST_CompactRange(last - 2, nullptr, &z);
// DEL eliminated, but v1 remains because we aren't compacting that level
// (DEL can be eliminated because v2 hides v1).
ASSERT_EQ(AllEntriesFor("foo"), "[ v2, v1 ]");
- dbfull()->TEST_CompactRange(last-1, nullptr, nullptr);
+ dbfull()->TEST_CompactRange(last - 1, nullptr, nullptr);
// Merging last-1 w/ last, so we are the base level for "foo", so
// DEL is removed. (as is v1).
ASSERT_EQ(AllEntriesFor("foo"), "[ v2 ]");
@@ -1402,23 +1385,23 @@ TEST(DBTest, DeletionMarkers2) {
Put("foo", "v1");
ASSERT_OK(dbfull()->TEST_CompactMemTable());
const int last = config::kMaxMemCompactLevel;
- ASSERT_EQ(NumTableFilesAtLevel(last), 1); // foo => v1 is now in last level
+ ASSERT_EQ(NumTableFilesAtLevel(last), 1); // foo => v1 is now in last level
// Place a table at level last-1 to prevent merging with preceding mutation
Put("a", "begin");
Put("z", "end");
dbfull()->TEST_CompactMemTable();
ASSERT_EQ(NumTableFilesAtLevel(last), 1);
- ASSERT_EQ(NumTableFilesAtLevel(last-1), 1);
+ ASSERT_EQ(NumTableFilesAtLevel(last - 1), 1);
Delete("foo");
ASSERT_EQ(AllEntriesFor("foo"), "[ DEL, v1 ]");
ASSERT_OK(dbfull()->TEST_CompactMemTable()); // Moves to level last-2
ASSERT_EQ(AllEntriesFor("foo"), "[ DEL, v1 ]");
- dbfull()->TEST_CompactRange(last-2, nullptr, nullptr);
+ dbfull()->TEST_CompactRange(last - 2, nullptr, nullptr);
// DEL kept: "last" file overlaps
ASSERT_EQ(AllEntriesFor("foo"), "[ DEL, v1 ]");
- dbfull()->TEST_CompactRange(last-1, nullptr, nullptr);
+ dbfull()->TEST_CompactRange(last - 1, nullptr, nullptr);
// Merging last-1 w/ last, so we are the base level for "foo", so
// DEL is removed. (as is v1).
ASSERT_EQ(AllEntriesFor("foo"), "[ ]");
@@ -1428,7 +1411,8 @@ TEST(DBTest, OverlapInLevel0) {
do {
ASSERT_EQ(config::kMaxMemCompactLevel, 2) << "Fix test to match config";
- // Fill levels 1 and 2 to disable the pushing of new memtables to levels > 0.
+ // Fill levels 1 and 2 to disable the pushing of new memtables to levels >
+ // 0.
ASSERT_OK(Put("100", "v100"));
ASSERT_OK(Put("999", "v999"));
dbfull()->TEST_CompactMemTable();
@@ -1548,16 +1532,17 @@ TEST(DBTest, CustomComparator) {
return ToNumber(a) - ToNumber(b);
}
virtual void FindShortestSeparator(std::string* s, const Slice& l) const {
- ToNumber(*s); // Check format
- ToNumber(l); // Check format
+ ToNumber(*s); // Check format
+ ToNumber(l); // Check format
}
virtual void FindShortSuccessor(std::string* key) const {
- ToNumber(*key); // Check format
+ ToNumber(*key); // Check format
}
+
private:
static int ToNumber(const Slice& x) {
// Check that there are no extra characters.
- ASSERT_TRUE(x.size() >= 2 && x[0] == '[' && x[x.size()-1] == ']')
+ ASSERT_TRUE(x.size() >= 2 && x[0] == '[' && x[x.size() - 1] == ']')
<< EscapeString(x);
int val;
char ignored;
@@ -1570,7 +1555,7 @@ TEST(DBTest, CustomComparator) {
Options new_options = CurrentOptions();
new_options.create_if_missing = true;
new_options.comparator = &cmp;
- new_options.filter_policy = nullptr; // Cannot use bloom filters
+ new_options.filter_policy = nullptr; // Cannot use bloom filters
new_options.write_buffer_size = 1000; // Compact more often
DestroyAndReopen(&new_options);
ASSERT_OK(Put("[10]", "ten"));
@@ -1588,7 +1573,7 @@ TEST(DBTest, CustomComparator) {
for (int run = 0; run < 2; run++) {
for (int i = 0; i < 1000; i++) {
char buf[100];
- snprintf(buf, sizeof(buf), "[%d]", i*10);
+ snprintf(buf, sizeof(buf), "[%d]", i * 10);
ASSERT_OK(Put(buf, buf));
}
Compact("[0]", "[1000000]");
@@ -1739,7 +1724,7 @@ TEST(DBTest, NoSpace) {
// Force out-of-space errors.
env_->no_space_.store(true, std::memory_order_release);
for (int i = 0; i < 10; i++) {
- for (int level = 0; level < config::kNumLevels-1; level++) {
+ for (int level = 0; level < config::kNumLevels - 1; level++) {
dbfull()->TEST_CompactRange(level, nullptr, nullptr);
}
}
@@ -1809,9 +1794,8 @@ TEST(DBTest, ManifestWriteError) {
// We iterate twice. In the second iteration, everything is the
// same except the log record never makes it to the MANIFEST file.
for (int iter = 0; iter < 2; iter++) {
- std::atomic<bool>* error_type = (iter == 0)
- ? &env_->manifest_sync_error_
- : &env_->manifest_write_error_;
+ std::atomic<bool>* error_type = (iter == 0) ? &env_->manifest_sync_error_
+ : &env_->manifest_write_error_;
// Insert foo=>bar mapping
Options options = CurrentOptions();
@@ -1826,7 +1810,7 @@ TEST(DBTest, ManifestWriteError) {
dbfull()->TEST_CompactMemTable();
ASSERT_EQ("bar", Get("foo"));
const int last = config::kMaxMemCompactLevel;
- ASSERT_EQ(NumTableFilesAtLevel(last), 1); // foo=>bar is now in last level
+ ASSERT_EQ(NumTableFilesAtLevel(last), 1); // foo=>bar is now in last level
// Merging compaction (will fail)
error_type->store(true, std::memory_order_release);
@@ -1854,8 +1838,7 @@ TEST(DBTest, MissingSSTFile) {
options.paranoid_checks = true;
Status s = TryReopen(&options);
ASSERT_TRUE(!s.ok());
- ASSERT_TRUE(s.ToString().find("issing") != std::string::npos)
- << s.ToString();
+ ASSERT_TRUE(s.ToString().find("issing") != std::string::npos) << s.ToString();
}
TEST(DBTest, StillReadSST) {
@@ -1915,7 +1898,7 @@ TEST(DBTest, BloomFilter) {
int reads = env_->random_read_counter_.Read();
fprintf(stderr, "%d present => %d reads\n", N, reads);
ASSERT_GE(reads, N);
- ASSERT_LE(reads, N + 2*N/100);
+ ASSERT_LE(reads, N + 2 * N / 100);
// Lookup present keys. Should rarely read from either sstable.
env_->random_read_counter_.Reset();
@@ -1924,7 +1907,7 @@ TEST(DBTest, BloomFilter) {
}
reads = env_->random_read_counter_.Read();
fprintf(stderr, "%d missing => %d reads\n", N, reads);
- ASSERT_LE(reads, 3*N/100);
+ ASSERT_LE(reads, 3 * N / 100);
env_->delay_data_sync_.store(false, std::memory_order_release);
Close();
@@ -1970,8 +1953,8 @@ static void MTThreadBody(void* arg) {
if (rnd.OneIn(2)) {
// Write values of the form <key, my id, counter>.
// We add some padding for force compactions.
- snprintf(valbuf, sizeof(valbuf), "%d.%d.%-1000d",
- key, id, static_cast<int>(counter));
+ snprintf(valbuf, sizeof(valbuf), "%d.%d.%-1000d", key, id,
+ static_cast<int>(counter));
ASSERT_OK(db->Put(WriteOptions(), Slice(keybuf), Slice(valbuf)));
} else {
// Read a value and verify that it matches the pattern written above.
@@ -2033,24 +2016,24 @@ namespace {
typedef std::map<std::string, std::string> KVMap;
}
-class ModelDB: public DB {
+class ModelDB : public DB {
public:
class ModelSnapshot : public Snapshot {
public:
KVMap map_;
};
- explicit ModelDB(const Options& options): options_(options) { }
- ~ModelDB() { }
+ explicit ModelDB(const Options& options) : options_(options) {}
+ ~ModelDB() {}
virtual Status Put(const WriteOptions& o, const Slice& k, const Slice& v) {
return DB::Put(o, k, v);
}
virtual Status Delete(const WriteOptions& o, const Slice& key) {
return DB::Delete(o, key);
}
- virtual Status Get(const ReadOptions& options,
- const Slice& key, std::string* value) {
- assert(false); // Not implemented
+ virtual Status Get(const ReadOptions& options, const Slice& key,
+ std::string* value) {
+ assert(false); // Not implemented
return Status::NotFound(key);
}
virtual Iterator* NewIterator(const ReadOptions& options) {
@@ -2080,9 +2063,7 @@ class ModelDB: public DB {
virtual void Put(const Slice& key, const Slice& value) {
(*map_)[key.ToString()] = value.ToString();
}
- virtual void Delete(const Slice& key) {
- map_->erase(key.ToString());
- }
+ virtual void Delete(const Slice& key) { map_->erase(key.ToString()); }
};
Handler handler;
handler.map_ = &map_;
@@ -2097,15 +2078,13 @@ class ModelDB: public DB {
sizes[i] = 0;
}
}
- virtual void CompactRange(const Slice* start, const Slice* end) {
- }
+ virtual void CompactRange(const Slice* start, const Slice* end) {}
private:
- class ModelIter: public Iterator {
+ class ModelIter : public Iterator {
public:
ModelIter(const KVMap* map, bool owned)
- : map_(map), owned_(owned), iter_(map_->end()) {
- }
+ : map_(map), owned_(owned), iter_(map_->end()) {}
~ModelIter() {
if (owned_) delete map_;
}
@@ -2136,9 +2115,7 @@ class ModelDB: public DB {
KVMap map_;
};
-static bool CompareIterators(int step,
- DB* model,
- DB* db,
+static bool CompareIterators(int step, DB* model, DB* db,
const Snapshot* model_snap,
const Snapshot* db_snap) {
ReadOptions options;
@@ -2149,12 +2126,10 @@ static bool CompareIterators(int step,
bool ok = true;
int count = 0;
for (miter->SeekToFirst(), dbiter->SeekToFirst();
- ok && miter->Valid() && dbiter->Valid();
- miter->Next(), dbiter->Next()) {
+ ok && miter->Valid() && dbiter->Valid(); miter->Next(), dbiter->Next()) {
count++;
if (miter->key().compare(dbiter->key()) != 0) {
- fprintf(stderr, "step %d: Key mismatch: '%s' vs. '%s'\n",
- step,
+ fprintf(stderr, "step %d: Key mismatch: '%s' vs. '%s'\n", step,
EscapeString(miter->key()).c_str(),
EscapeString(dbiter->key()).c_str());
ok = false;
@@ -2163,8 +2138,7 @@ static bool CompareIterators(int step,
if (miter->value().compare(dbiter->value()) != 0) {
fprintf(stderr, "step %d: Value mismatch for key '%s': '%s' vs. '%s'\n",
- step,
- EscapeString(miter->key()).c_str(),
+ step, EscapeString(miter->key()).c_str(),
EscapeString(miter->value()).c_str(),
EscapeString(miter->value()).c_str());
ok = false;
@@ -2198,22 +2172,19 @@ TEST(DBTest, Randomized) {
}
// TODO(sanjay): Test Get() works
int p = rnd.Uniform(100);
- if (p < 45) { // Put
+ if (p < 45) { // Put
k = RandomKey(&rnd);
- v = RandomString(&rnd,
- rnd.OneIn(20)
- ? 100 + rnd.Uniform(100)
- : rnd.Uniform(8));
+ v = RandomString(
+ &rnd, rnd.OneIn(20) ? 100 + rnd.Uniform(100) : rnd.Uniform(8));
ASSERT_OK(model.Put(WriteOptions(), k, v));
ASSERT_OK(db_->Put(WriteOptions(), k, v));
- } else if (p < 90) { // Delete
+ } else if (p < 90) { // Delete
k = RandomKey(&rnd);
ASSERT_OK(model.Delete(WriteOptions(), k));
ASSERT_OK(db_->Delete(WriteOptions(), k));
-
- } else { // Multi-element batch
+ } else { // Multi-element batch
WriteBatch b;
const int num = rnd.Uniform(8);
for (int i = 0; i < num; i++) {
@@ -2288,8 +2259,8 @@ void BM_LogAndApply(int iters, int num_base_files) {
VersionEdit vbase;
uint64_t fnum = 1;
for (int i = 0; i < num_base_files; i++) {
- InternalKey start(MakeKey(2*fnum), 1, kTypeValue);
- InternalKey limit(MakeKey(2*fnum+1), 1, kTypeDeletion);
+ InternalKey start(MakeKey(2 * fnum), 1, kTypeValue);
+ InternalKey limit(MakeKey(2 * fnum + 1), 1, kTypeDeletion);
vbase.AddFile(2, fnum++, 1 /* file size */, start, limit);
}
ASSERT_OK(vset.LogAndApply(&vbase, &mu));
@@ -2299,8 +2270,8 @@ void BM_LogAndApply(int iters, int num_base_files) {
for (int i = 0; i < iters; i++) {
VersionEdit vedit;
vedit.DeleteFile(2, fnum);
- InternalKey start(MakeKey(2*fnum), 1, kTypeValue);
- InternalKey limit(MakeKey(2*fnum+1), 1, kTypeDeletion);
+ InternalKey start(MakeKey(2 * fnum), 1, kTypeValue);
+ InternalKey limit(MakeKey(2 * fnum + 1), 1, kTypeDeletion);
vedit.AddFile(2, fnum++, 1 /* file size */, start, limit);
vset.LogAndApply(&vedit, &mu);
}
@@ -2309,8 +2280,8 @@ void BM_LogAndApply(int iters, int num_base_files) {
char buf[16];
snprintf(buf, sizeof(buf), "%d", num_base_files);
fprintf(stderr,
- "BM_LogAndApply/%-6s %8d iters : %9u us (%7.0f us / iter)\n",
- buf, iters, us, ((float)us) / iters);
+ "BM_LogAndApply/%-6s %8d iters : %9u us (%7.0f us / iter)\n", buf,
+ iters, us, ((float)us) / iters);
}
} // namespace leveldb
diff --git a/db/dbformat.cc b/db/dbformat.cc
index 20a7ca4..69e8dc6 100644
--- a/db/dbformat.cc
+++ b/db/dbformat.cc
@@ -2,8 +2,10 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
-#include <stdio.h>
#include "db/dbformat.h"
+
+#include <stdio.h>
+
#include "port/port.h"
#include "util/coding.h"
@@ -22,8 +24,7 @@ void AppendInternalKey(std::string* result, const ParsedInternalKey& key) {
std::string ParsedInternalKey::DebugString() const {
char buf[50];
- snprintf(buf, sizeof(buf), "' @ %llu : %d",
- (unsigned long long) sequence,
+ snprintf(buf, sizeof(buf), "' @ %llu : %d", (unsigned long long)sequence,
int(type));
std::string result = "'";
result += EscapeString(user_key.ToString());
@@ -65,9 +66,8 @@ int InternalKeyComparator::Compare(const Slice& akey, const Slice& bkey) const {
return r;
}
-void InternalKeyComparator::FindShortestSeparator(
- std::string* start,
- const Slice& limit) const {
+void InternalKeyComparator::FindShortestSeparator(std::string* start,
+ const Slice& limit) const {
// Attempt to shorten the user portion of the key
Slice user_start = ExtractUserKey(*start);
Slice user_limit = ExtractUserKey(limit);
@@ -77,7 +77,8 @@ void InternalKeyComparator::FindShortestSeparator(
user_comparator_->Compare(user_start, tmp) < 0) {
// User key has become shorter physically, but larger logically.
// Tack on the earliest possible number to the shortened user key.
- PutFixed64(&tmp, PackSequenceAndType(kMaxSequenceNumber,kValueTypeForSeek));
+ PutFixed64(&tmp,
+ PackSequenceAndType(kMaxSequenceNumber, kValueTypeForSeek));
assert(this->Compare(*start, tmp) < 0);
assert(this->Compare(tmp, limit) < 0);
start->swap(tmp);
@@ -92,15 +93,14 @@ void InternalKeyComparator::FindShortSuccessor(std::string* key) const {
user_comparator_->Compare(user_key, tmp) < 0) {
// User key has become shorter physically, but larger logically.
// Tack on the earliest possible number to the shortened user key.
- PutFixed64(&tmp, PackSequenceAndType(kMaxSequenceNumber,kValueTypeForSeek));
+ PutFixed64(&tmp,
+ PackSequenceAndType(kMaxSequenceNumber, kValueTypeForSeek));
assert(this->Compare(*key, tmp) < 0);
key->swap(tmp);
}
}
-const char* InternalFilterPolicy::Name() const {
- return user_policy_->Name();
-}
+const char* InternalFilterPolicy::Name() const { return user_policy_->Name(); }
void InternalFilterPolicy::CreateFilter(const Slice* keys, int n,
std::string* dst) const {
diff --git a/db/dbformat.h b/db/dbformat.h
index c4d9575..bdc23b8 100644
--- a/db/dbformat.h
+++ b/db/dbformat.h
@@ -6,6 +6,7 @@
#define STORAGE_LEVELDB_DB_DBFORMAT_H_
#include <stdio.h>
+
#include "leveldb/comparator.h"
#include "leveldb/db.h"
#include "leveldb/filter_policy.h"
@@ -48,10 +49,7 @@ class InternalKey;
// Value types encoded as the last component of internal keys.
// DO NOT CHANGE THESE ENUM VALUES: they are embedded in the on-disk
// data structures.
-enum ValueType {
- kTypeDeletion = 0x0,
- kTypeValue = 0x1
-};
+enum ValueType { kTypeDeletion = 0x0, kTypeValue = 0x1 };
// kValueTypeForSeek defines the ValueType that should be passed when
// constructing a ParsedInternalKey object for seeking to a particular
// sequence number (since we sort sequence numbers in decreasing order
@@ -64,17 +62,16 @@ typedef uint64_t SequenceNumber;
// We leave eight bits empty at the bottom so a type and sequence#
// can be packed together into 64-bits.
-static const SequenceNumber kMaxSequenceNumber =
- ((0x1ull << 56) - 1);
+static const SequenceNumber kMaxSequenceNumber = ((0x1ull << 56) - 1);
struct ParsedInternalKey {
Slice user_key;
SequenceNumber sequence;
ValueType type;
- ParsedInternalKey() { } // Intentionally left uninitialized (for speed)
+ ParsedInternalKey() {} // Intentionally left uninitialized (for speed)
ParsedInternalKey(const Slice& u, const SequenceNumber& seq, ValueType t)
- : user_key(u), sequence(seq), type(t) { }
+ : user_key(u), sequence(seq), type(t) {}
std::string DebugString() const;
};
@@ -103,13 +100,13 @@ inline Slice ExtractUserKey(const Slice& internal_key) {
class InternalKeyComparator : public Comparator {
private:
const Comparator* user_comparator_;
+
public:
- explicit InternalKeyComparator(const Comparator* c) : user_comparator_(c) { }
+ explicit InternalKeyComparator(const Comparator* c) : user_comparator_(c) {}
virtual const char* Name() const;
virtual int Compare(const Slice& a, const Slice& b) const;
- virtual void FindShortestSeparator(
- std::string* start,
- const Slice& limit) const;
+ virtual void FindShortestSeparator(std::string* start,
+ const Slice& limit) const;
virtual void FindShortSuccessor(std::string* key) const;
const Comparator* user_comparator() const { return user_comparator_; }
@@ -121,8 +118,9 @@ class InternalKeyComparator : public Comparator {
class InternalFilterPolicy : public FilterPolicy {
private:
const FilterPolicy* const user_policy_;
+
public:
- explicit InternalFilterPolicy(const FilterPolicy* p) : user_policy_(p) { }
+ explicit InternalFilterPolicy(const FilterPolicy* p) : user_policy_(p) {}
virtual const char* Name() const;
virtual void CreateFilter(const Slice* keys, int n, std::string* dst) const;
virtual bool KeyMayMatch(const Slice& key, const Slice& filter) const;
@@ -134,8 +132,9 @@ class InternalFilterPolicy : public FilterPolicy {
class InternalKey {
private:
std::string rep_;
+
public:
- InternalKey() { } // Leave rep_ as empty to indicate it is invalid
+ InternalKey() {} // Leave rep_ as empty to indicate it is invalid
InternalKey(const Slice& user_key, SequenceNumber s, ValueType t) {
AppendInternalKey(&rep_, ParsedInternalKey(user_key, s, t));
}
@@ -158,8 +157,8 @@ class InternalKey {
std::string DebugString() const;
};
-inline int InternalKeyComparator::Compare(
- const InternalKey& a, const InternalKey& b) const {
+inline int InternalKeyComparator::Compare(const InternalKey& a,
+ const InternalKey& b) const {
return Compare(a.Encode(), b.Encode());
}
@@ -204,7 +203,7 @@ class LookupKey {
const char* start_;
const char* kstart_;
const char* end_;
- char space_[200]; // Avoid allocation for short keys
+ char space_[200]; // Avoid allocation for short keys
// No copying allowed
LookupKey(const LookupKey&);
diff --git a/db/dbformat_test.cc b/db/dbformat_test.cc
index 5d82f5d..87e6aae 100644
--- a/db/dbformat_test.cc
+++ b/db/dbformat_test.cc
@@ -8,8 +8,7 @@
namespace leveldb {
-static std::string IKey(const std::string& user_key,
- uint64_t seq,
+static std::string IKey(const std::string& user_key, uint64_t seq,
ValueType vt) {
std::string encoded;
AppendInternalKey(&encoded, ParsedInternalKey(user_key, seq, vt));
@@ -28,9 +27,7 @@ static std::string ShortSuccessor(const std::string& s) {
return result;
}
-static void TestKey(const std::string& key,
- uint64_t seq,
- ValueType vt) {
+static void TestKey(const std::string& key, uint64_t seq, ValueType vt) {
std::string encoded = IKey(key, seq, vt);
Slice in(encoded);
@@ -44,16 +41,22 @@ static void TestKey(const std::string& key,
ASSERT_TRUE(!ParseInternalKey(Slice("bar"), &decoded));
}
-class FormatTest { };
+class FormatTest {};
TEST(FormatTest, InternalKey_EncodeDecode) {
- const char* keys[] = { "", "k", "hello", "longggggggggggggggggggggg" };
- const uint64_t seq[] = {
- 1, 2, 3,
- (1ull << 8) - 1, 1ull << 8, (1ull << 8) + 1,
- (1ull << 16) - 1, 1ull << 16, (1ull << 16) + 1,
- (1ull << 32) - 1, 1ull << 32, (1ull << 32) + 1
- };
+ const char* keys[] = {"", "k", "hello", "longggggggggggggggggggggg"};
+ const uint64_t seq[] = {1,
+ 2,
+ 3,
+ (1ull << 8) - 1,
+ 1ull << 8,
+ (1ull << 8) + 1,
+ (1ull << 16) - 1,
+ 1ull << 16,
+ (1ull << 16) + 1,
+ (1ull << 32) - 1,
+ 1ull << 32,
+ (1ull << 32) + 1};
for (int k = 0; k < sizeof(keys) / sizeof(keys[0]); k++) {
for (int s = 0; s < sizeof(seq) / sizeof(seq[0]); s++) {
TestKey(keys[k], seq[s], kTypeValue);
@@ -65,37 +68,35 @@ TEST(FormatTest, InternalKey_EncodeDecode) {
TEST(FormatTest, InternalKeyShortSeparator) {
// When user keys are same
ASSERT_EQ(IKey("foo", 100, kTypeValue),
- Shorten(IKey("foo", 100, kTypeValue),
- IKey("foo", 99, kTypeValue)));
- ASSERT_EQ(IKey("foo", 100, kTypeValue),
- Shorten(IKey("foo", 100, kTypeValue),
- IKey("foo", 101, kTypeValue)));
- ASSERT_EQ(IKey("foo", 100, kTypeValue),
- Shorten(IKey("foo", 100, kTypeValue),
- IKey("foo", 100, kTypeValue)));
- ASSERT_EQ(IKey("foo", 100, kTypeValue),
- Shorten(IKey("foo", 100, kTypeValue),
- IKey("foo", 100, kTypeDeletion)));
+ Shorten(IKey("foo", 100, kTypeValue), IKey("foo", 99, kTypeValue)));
+ ASSERT_EQ(
+ IKey("foo", 100, kTypeValue),
+ Shorten(IKey("foo", 100, kTypeValue), IKey("foo", 101, kTypeValue)));
+ ASSERT_EQ(
+ IKey("foo", 100, kTypeValue),
+ Shorten(IKey("foo", 100, kTypeValue), IKey("foo", 100, kTypeValue)));
+ ASSERT_EQ(
+ IKey("foo", 100, kTypeValue),
+ Shorten(IKey("foo", 100, kTypeValue), IKey("foo", 100, kTypeDeletion)));
// When user keys are misordered
ASSERT_EQ(IKey("foo", 100, kTypeValue),
- Shorten(IKey("foo", 100, kTypeValue),
- IKey("bar", 99, kTypeValue)));
+ Shorten(IKey("foo", 100, kTypeValue), IKey("bar", 99, kTypeValue)));
// When user keys are different, but correctly ordered
- ASSERT_EQ(IKey("g", kMaxSequenceNumber, kValueTypeForSeek),
- Shorten(IKey("foo", 100, kTypeValue),
- IKey("hello", 200, kTypeValue)));
+ ASSERT_EQ(
+ IKey("g", kMaxSequenceNumber, kValueTypeForSeek),
+ Shorten(IKey("foo", 100, kTypeValue), IKey("hello", 200, kTypeValue)));
// When start user key is prefix of limit user key
- ASSERT_EQ(IKey("foo", 100, kTypeValue),
- Shorten(IKey("foo", 100, kTypeValue),
- IKey("foobar", 200, kTypeValue)));
+ ASSERT_EQ(
+ IKey("foo", 100, kTypeValue),
+ Shorten(IKey("foo", 100, kTypeValue), IKey("foobar", 200, kTypeValue)));
// When limit user key is prefix of start user key
- ASSERT_EQ(IKey("foobar", 100, kTypeValue),
- Shorten(IKey("foobar", 100, kTypeValue),
- IKey("foo", 200, kTypeValue)));
+ ASSERT_EQ(
+ IKey("foobar", 100, kTypeValue),
+ Shorten(IKey("foobar", 100, kTypeValue), IKey("foo", 200, kTypeValue)));
}
TEST(FormatTest, InternalKeyShortestSuccessor) {
@@ -107,6 +108,4 @@ TEST(FormatTest, InternalKeyShortestSuccessor) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/db/dumpfile.cc b/db/dumpfile.cc
index 941988b..1dbff5e 100644
--- a/db/dumpfile.cc
+++ b/db/dumpfile.cc
@@ -90,7 +90,6 @@ class WriteBatchItemPrinter : public WriteBatch::Handler {
}
};
-
// Called on every log record (each one of which is a WriteBatch)
// found in a kLogFile.
static void WriteBatchPrinter(uint64_t pos, Slice record, WritableFile* dst) {
@@ -216,9 +215,12 @@ Status DumpFile(Env* env, const std::string& fname, WritableFile* dst) {
return Status::InvalidArgument(fname + ": unknown file type");
}
switch (ftype) {
- case kLogFile: return DumpLog(env, fname, dst);
- case kDescriptorFile: return DumpDescriptor(env, fname, dst);
- case kTableFile: return DumpTable(env, fname, dst);
+ case kLogFile:
+ return DumpLog(env, fname, dst);
+ case kDescriptorFile:
+ return DumpDescriptor(env, fname, dst);
+ case kTableFile:
+ return DumpTable(env, fname, dst);
default:
break;
}
diff --git a/db/fault_injection_test.cc b/db/fault_injection_test.cc
index 1f72984..7088ea7 100644
--- a/db/fault_injection_test.cc
+++ b/db/fault_injection_test.cc
@@ -9,12 +9,12 @@
#include <map>
#include <set>
-#include "leveldb/db.h"
#include "db/db_impl.h"
#include "db/filename.h"
#include "db/log_format.h"
#include "db/version_set.h"
#include "leveldb/cache.h"
+#include "leveldb/db.h"
#include "leveldb/env.h"
#include "leveldb/table.h"
#include "leveldb/write_batch.h"
@@ -56,8 +56,7 @@ Status Truncate(const std::string& filename, uint64_t length) {
SequentialFile* orig_file;
Status s = env->NewSequentialFile(filename, &orig_file);
- if (!s.ok())
- return s;
+ if (!s.ok()) return s;
char* scratch = new char[length];
leveldb::Slice result;
@@ -93,7 +92,7 @@ struct FileState {
: filename_(filename),
pos_(-1),
pos_at_last_sync_(-1),
- pos_at_last_flush_(-1) { }
+ pos_at_last_flush_(-1) {}
FileState() : pos_(-1), pos_at_last_sync_(-1), pos_at_last_flush_(-1) {}
@@ -108,8 +107,7 @@ struct FileState {
// is written to or sync'ed.
class TestWritableFile : public WritableFile {
public:
- TestWritableFile(const FileState& state,
- WritableFile* f,
+ TestWritableFile(const FileState& state, WritableFile* f,
FaultInjectionTestEnv* env);
virtual ~TestWritableFile();
virtual Status Append(const Slice& data);
@@ -130,7 +128,7 @@ class FaultInjectionTestEnv : public EnvWrapper {
public:
FaultInjectionTestEnv()
: EnvWrapper(Env::Default()), filesystem_active_(true) {}
- virtual ~FaultInjectionTestEnv() { }
+ virtual ~FaultInjectionTestEnv() {}
virtual Status NewWritableFile(const std::string& fname,
WritableFile** result);
virtual Status NewAppendableFile(const std::string& fname,
@@ -165,13 +163,9 @@ class FaultInjectionTestEnv : public EnvWrapper {
bool filesystem_active_ GUARDED_BY(mutex_); // Record flushes, syncs, writes
};
-TestWritableFile::TestWritableFile(const FileState& state,
- WritableFile* f,
+TestWritableFile::TestWritableFile(const FileState& state, WritableFile* f,
FaultInjectionTestEnv* env)
- : state_(state),
- target_(f),
- writable_file_opened_(true),
- env_(env) {
+ : state_(state), target_(f), writable_file_opened_(true), env_(env) {
assert(f != nullptr);
}
@@ -395,9 +389,7 @@ class FaultInjectionTest {
delete env_;
}
- void ReuseLogs(bool reuse) {
- options_.reuse_logs = reuse;
- }
+ void ReuseLogs(bool reuse) { options_.reuse_logs = reuse; }
void Build(int start_idx, int num_vals) {
std::string key_space, value_space;
@@ -497,18 +489,17 @@ class FaultInjectionTest {
}
void PartialCompactTestReopenWithFault(ResetMethod reset_method,
- int num_pre_sync,
- int num_post_sync) {
+ int num_pre_sync, int num_post_sync) {
env_->SetFilesystemActive(false);
CloseDB();
ResetDBState(reset_method);
ASSERT_OK(OpenDB());
ASSERT_OK(Verify(0, num_pre_sync, FaultInjectionTest::VAL_EXPECT_NO_ERROR));
- ASSERT_OK(Verify(num_pre_sync, num_post_sync, FaultInjectionTest::VAL_EXPECT_ERROR));
+ ASSERT_OK(Verify(num_pre_sync, num_post_sync,
+ FaultInjectionTest::VAL_EXPECT_ERROR));
}
- void NoWriteTestPreFault() {
- }
+ void NoWriteTestPreFault() {}
void NoWriteTestReopenWithFault(ResetMethod reset_method) {
CloseDB();
@@ -524,8 +515,7 @@ class FaultInjectionTest {
int num_post_sync = rnd.Uniform(kMaxNumValues);
PartialCompactTestPreFault(num_pre_sync, num_post_sync);
- PartialCompactTestReopenWithFault(RESET_DROP_UNSYNCED_DATA,
- num_pre_sync,
+ PartialCompactTestReopenWithFault(RESET_DROP_UNSYNCED_DATA, num_pre_sync,
num_post_sync);
NoWriteTestPreFault();
@@ -535,8 +525,7 @@ class FaultInjectionTest {
// No new files created so we expect all values since no files will be
// dropped.
PartialCompactTestReopenWithFault(RESET_DELETE_UNSYNCED_FILES,
- num_pre_sync + num_post_sync,
- 0);
+ num_pre_sync + num_post_sync, 0);
NoWriteTestPreFault();
NoWriteTestReopenWithFault(RESET_DELETE_UNSYNCED_FILES);
@@ -556,6 +545,4 @@ TEST(FaultInjectionTest, FaultTestWithLogReuse) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/db/filename.cc b/db/filename.cc
index 6539bbe..85de45c 100644
--- a/db/filename.cc
+++ b/db/filename.cc
@@ -2,9 +2,11 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
+#include "db/filename.h"
+
#include <ctype.h>
#include <stdio.h>
-#include "db/filename.h"
+
#include "db/dbformat.h"
#include "leveldb/env.h"
#include "util/logging.h"
@@ -19,8 +21,7 @@ static std::string MakeFileName(const std::string& dbname, uint64_t number,
const char* suffix) {
char buf[100];
snprintf(buf, sizeof(buf), "/%06llu.%s",
- static_cast<unsigned long long>(number),
- suffix);
+ static_cast<unsigned long long>(number), suffix);
return dbname + buf;
}
@@ -51,9 +52,7 @@ std::string CurrentFileName(const std::string& dbname) {
return dbname + "/CURRENT";
}
-std::string LockFileName(const std::string& dbname) {
- return dbname + "/LOCK";
-}
+std::string LockFileName(const std::string& dbname) { return dbname + "/LOCK"; }
std::string TempFileName(const std::string& dbname, uint64_t number) {
assert(number > 0);
@@ -69,7 +68,6 @@ std::string OldInfoLogFileName(const std::string& dbname) {
return dbname + "/LOG.old";
}
-
// Owned filenames have the form:
// dbname/CURRENT
// dbname/LOCK
@@ -77,8 +75,7 @@ std::string OldInfoLogFileName(const std::string& dbname) {
// dbname/LOG.old
// dbname/MANIFEST-[0-9]+
// dbname/[0-9]+.(log|sst|ldb)
-bool ParseFileName(const std::string& filename,
- uint64_t* number,
+bool ParseFileName(const std::string& filename, uint64_t* number,
FileType* type) {
Slice rest(filename);
if (rest == "CURRENT") {
diff --git a/db/filename.h b/db/filename.h
index 62cb3ef..524e813 100644
--- a/db/filename.h
+++ b/db/filename.h
@@ -8,7 +8,9 @@
#define STORAGE_LEVELDB_DB_FILENAME_H_
#include <stdint.h>
+
#include <string>
+
#include "leveldb/slice.h"
#include "leveldb/status.h"
#include "port/port.h"
@@ -69,8 +71,7 @@ std::string OldInfoLogFileName(const std::string& dbname);
// If filename is a leveldb file, store the type of the file in *type.
// The number encoded in the filename is stored in *number. If the
// filename was successfully parsed, returns true. Else return false.
-bool ParseFileName(const std::string& filename,
- uint64_t* number,
+bool ParseFileName(const std::string& filename, uint64_t* number,
FileType* type);
// Make the CURRENT file point to the descriptor file with the
diff --git a/db/filename_test.cc b/db/filename_test.cc
index 0bde538..952f320 100644
--- a/db/filename_test.cc
+++ b/db/filename_test.cc
@@ -11,7 +11,7 @@
namespace leveldb {
-class FileNameTest { };
+class FileNameTest {};
TEST(FileNameTest, Parse) {
Slice db;
@@ -24,17 +24,17 @@ TEST(FileNameTest, Parse) {
uint64_t number;
FileType type;
} cases[] = {
- { "100.log", 100, kLogFile },
- { "0.log", 0, kLogFile },
- { "0.sst", 0, kTableFile },
- { "0.ldb", 0, kTableFile },
- { "CURRENT", 0, kCurrentFile },
- { "LOCK", 0, kDBLockFile },
- { "MANIFEST-2", 2, kDescriptorFile },
- { "MANIFEST-7", 7, kDescriptorFile },
- { "LOG", 0, kInfoLogFile },
- { "LOG.old", 0, kInfoLogFile },
- { "18446744073709551615.log", 18446744073709551615ull, kLogFile },
+ {"100.log", 100, kLogFile},
+ {"0.log", 0, kLogFile},
+ {"0.sst", 0, kTableFile},
+ {"0.ldb", 0, kTableFile},
+ {"CURRENT", 0, kCurrentFile},
+ {"LOCK", 0, kDBLockFile},
+ {"MANIFEST-2", 2, kDescriptorFile},
+ {"MANIFEST-7", 7, kDescriptorFile},
+ {"LOG", 0, kInfoLogFile},
+ {"LOG.old", 0, kInfoLogFile},
+ {"18446744073709551615.log", 18446744073709551615ull, kLogFile},
};
for (int i = 0; i < sizeof(cases) / sizeof(cases[0]); i++) {
std::string f = cases[i].fname;
@@ -44,30 +44,28 @@ TEST(FileNameTest, Parse) {
}
// Errors
- static const char* errors[] = {
- "",
- "foo",
- "foo-dx-100.log",
- ".log",
- "",
- "manifest",
- "CURREN",
- "CURRENTX",
- "MANIFES",
- "MANIFEST",
- "MANIFEST-",
- "XMANIFEST-3",
- "MANIFEST-3x",
- "LOC",
- "LOCKx",
- "LO",
- "LOGx",
- "18446744073709551616.log",
- "184467440737095516150.log",
- "100",
- "100.",
- "100.lop"
- };
+ static const char* errors[] = {"",
+ "foo",
+ "foo-dx-100.log",
+ ".log",
+ "",
+ "manifest",
+ "CURREN",
+ "CURRENTX",
+ "MANIFES",
+ "MANIFEST",
+ "MANIFEST-",
+ "XMANIFEST-3",
+ "MANIFEST-3x",
+ "LOC",
+ "LOCKx",
+ "LO",
+ "LOGx",
+ "18446744073709551616.log",
+ "184467440737095516150.log",
+ "100",
+ "100.",
+ "100.lop"};
for (int i = 0; i < sizeof(errors) / sizeof(errors[0]); i++) {
std::string f = errors[i];
ASSERT_TRUE(!ParseFileName(f, &number, &type)) << f;
@@ -130,6 +128,4 @@ TEST(FileNameTest, Construction) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/db/leveldbutil.cc b/db/leveldbutil.cc
index 9f4b7dd..b21cf8e 100644
--- a/db/leveldbutil.cc
+++ b/db/leveldbutil.cc
@@ -3,6 +3,7 @@
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#include <stdio.h>
+
#include "leveldb/dumpfile.h"
#include "leveldb/env.h"
#include "leveldb/status.h"
@@ -38,11 +39,9 @@ bool HandleDumpCommand(Env* env, char** files, int num) {
} // namespace leveldb
static void Usage() {
- fprintf(
- stderr,
- "Usage: leveldbutil command...\n"
- " dump files... -- dump contents of specified files\n"
- );
+ fprintf(stderr,
+ "Usage: leveldbutil command...\n"
+ " dump files... -- dump contents of specified files\n");
}
int main(int argc, char** argv) {
@@ -54,7 +53,7 @@ int main(int argc, char** argv) {
} else {
std::string command = argv[1];
if (command == "dump") {
- ok = leveldb::HandleDumpCommand(env, argv+2, argc-2);
+ ok = leveldb::HandleDumpCommand(env, argv + 2, argc - 2);
} else {
Usage();
ok = false;
diff --git a/db/log_reader.cc b/db/log_reader.cc
index 19c4df6..f472723 100644
--- a/db/log_reader.cc
+++ b/db/log_reader.cc
@@ -5,6 +5,7 @@
#include "db/log_reader.h"
#include <stdio.h>
+
#include "leveldb/env.h"
#include "util/coding.h"
#include "util/crc32c.h"
@@ -12,8 +13,7 @@
namespace leveldb {
namespace log {
-Reader::Reporter::~Reporter() {
-}
+Reader::Reporter::~Reporter() {}
Reader::Reader(SequentialFile* file, Reporter* reporter, bool checksum,
uint64_t initial_offset)
@@ -26,12 +26,9 @@ Reader::Reader(SequentialFile* file, Reporter* reporter, bool checksum,
last_record_offset_(0),
end_of_buffer_offset_(0),
initial_offset_(initial_offset),
- resyncing_(initial_offset > 0) {
-}
+ resyncing_(initial_offset > 0) {}
-Reader::~Reader() {
- delete[] backing_store_;
-}
+Reader::~Reader() { delete[] backing_store_; }
bool Reader::SkipToInitialBlock() {
const size_t offset_in_block = initial_offset_ % kBlockSize;
@@ -176,9 +173,7 @@ bool Reader::ReadRecord(Slice* record, std::string* scratch) {
return false;
}
-uint64_t Reader::LastRecordOffset() {
- return last_record_offset_;
-}
+uint64_t Reader::LastRecordOffset() { return last_record_offset_; }
void Reader::ReportCorruption(uint64_t bytes, const char* reason) {
ReportDrop(bytes, Status::Corruption(reason));
diff --git a/db/log_reader.h b/db/log_reader.h
index 7dcce8e..b27c164 100644
--- a/db/log_reader.h
+++ b/db/log_reader.h
@@ -63,7 +63,7 @@ class Reader {
bool const checksum_;
char* const backing_store_;
Slice buffer_;
- bool eof_; // Last Read() indicated EOF by returning < kBlockSize
+ bool eof_; // Last Read() indicated EOF by returning < kBlockSize
// Offset of the last record returned by ReadRecord.
uint64_t last_record_offset_;
diff --git a/db/log_test.cc b/db/log_test.cc
index 48a5928..3acaa33 100644
--- a/db/log_test.cc
+++ b/db/log_test.cc
@@ -56,7 +56,7 @@ class LogTest {
Slice contents_;
bool force_error_;
bool returned_partial_;
- StringSource() : force_error_(false), returned_partial_(false) { }
+ StringSource() : force_error_(false), returned_partial_(false) {}
virtual Status Read(size_t n, Slice* result, char* scratch) {
ASSERT_TRUE(!returned_partial_) << "must not Read() after eof/error";
@@ -93,7 +93,7 @@ class LogTest {
size_t dropped_bytes_;
std::string message_;
- ReportCollector() : dropped_bytes_(0) { }
+ ReportCollector() : dropped_bytes_(0) {}
virtual void Corruption(size_t bytes, const Status& status) {
dropped_bytes_ += bytes;
message_.append(status.ToString());
@@ -113,11 +113,11 @@ class LogTest {
static int num_initial_offset_records_;
public:
- LogTest() : reading_(false),
- writer_(new Writer(&dest_)),
- reader_(new Reader(&source_, &report_, true/*checksum*/,
- 0/*initial_offset*/)) {
- }
+ LogTest()
+ : reading_(false),
+ writer_(new Writer(&dest_)),
+ reader_(new Reader(&source_, &report_, true /*checksum*/,
+ 0 /*initial_offset*/)) {}
~LogTest() {
delete writer_;
@@ -134,9 +134,7 @@ class LogTest {
writer_->AddRecord(Slice(msg));
}
- size_t WrittenBytes() const {
- return dest_.contents_.size();
- }
+ size_t WrittenBytes() const { return dest_.contents_.size(); }
std::string Read() {
if (!reading_) {
@@ -166,22 +164,16 @@ class LogTest {
void FixChecksum(int header_offset, int len) {
// Compute crc of type/len/data
- uint32_t crc = crc32c::Value(&dest_.contents_[header_offset+6], 1 + len);
+ uint32_t crc = crc32c::Value(&dest_.contents_[header_offset + 6], 1 + len);
crc = crc32c::Mask(crc);
EncodeFixed32(&dest_.contents_[header_offset], crc);
}
- void ForceError() {
- source_.force_error_ = true;
- }
+ void ForceError() { source_.force_error_ = true; }
- size_t DroppedBytes() const {
- return report_.dropped_bytes_;
- }
+ size_t DroppedBytes() const { return report_.dropped_bytes_; }
- std::string ReportMessage() const {
- return report_.message_;
- }
+ std::string ReportMessage() const { return report_.message_; }
// Returns OK iff recorded error message contains "msg"
std::string MatchError(const std::string& msg) const {
@@ -202,14 +194,14 @@ class LogTest {
void StartReadingAt(uint64_t initial_offset) {
delete reader_;
- reader_ = new Reader(&source_, &report_, true/*checksum*/, initial_offset);
+ reader_ = new Reader(&source_, &report_, true /*checksum*/, initial_offset);
}
void CheckOffsetPastEndReturnsNoRecords(uint64_t offset_past_end) {
WriteInitialOffsetLog();
reading_ = true;
source_.contents_ = Slice(dest_.contents_);
- Reader* offset_reader = new Reader(&source_, &report_, true/*checksum*/,
+ Reader* offset_reader = new Reader(&source_, &report_, true /*checksum*/,
WrittenBytes() + offset_past_end);
Slice record;
std::string scratch;
@@ -222,8 +214,8 @@ class LogTest {
WriteInitialOffsetLog();
reading_ = true;
source_.contents_ = Slice(dest_.contents_);
- Reader* offset_reader = new Reader(&source_, &report_, true/*checksum*/,
- initial_offset);
+ Reader* offset_reader =
+ new Reader(&source_, &report_, true /*checksum*/, initial_offset);
// Read all records from expected_record_offset through the last one.
ASSERT_LT(expected_record_offset, num_initial_offset_records_);
@@ -242,34 +234,30 @@ class LogTest {
}
};
-size_t LogTest::initial_offset_record_sizes_[] =
- {10000, // Two sizable records in first block
- 10000,
- 2 * log::kBlockSize - 1000, // Span three blocks
- 1,
- 13716, // Consume all but two bytes of block 3.
- log::kBlockSize - kHeaderSize, // Consume the entirety of block 4.
- };
-
-uint64_t LogTest::initial_offset_last_record_offsets_[] =
- {0,
- kHeaderSize + 10000,
- 2 * (kHeaderSize + 10000),
- 2 * (kHeaderSize + 10000) +
- (2 * log::kBlockSize - 1000) + 3 * kHeaderSize,
- 2 * (kHeaderSize + 10000) +
- (2 * log::kBlockSize - 1000) + 3 * kHeaderSize
- + kHeaderSize + 1,
- 3 * log::kBlockSize,
- };
+size_t LogTest::initial_offset_record_sizes_[] = {
+ 10000, // Two sizable records in first block
+ 10000,
+ 2 * log::kBlockSize - 1000, // Span three blocks
+ 1,
+ 13716, // Consume all but two bytes of block 3.
+ log::kBlockSize - kHeaderSize, // Consume the entirety of block 4.
+};
+
+uint64_t LogTest::initial_offset_last_record_offsets_[] = {
+ 0,
+ kHeaderSize + 10000,
+ 2 * (kHeaderSize + 10000),
+ 2 * (kHeaderSize + 10000) + (2 * log::kBlockSize - 1000) + 3 * kHeaderSize,
+ 2 * (kHeaderSize + 10000) + (2 * log::kBlockSize - 1000) + 3 * kHeaderSize +
+ kHeaderSize + 1,
+ 3 * log::kBlockSize,
+};
// LogTest::initial_offset_last_record_offsets_ must be defined before this.
int LogTest::num_initial_offset_records_ =
- sizeof(LogTest::initial_offset_last_record_offsets_)/sizeof(uint64_t);
+ sizeof(LogTest::initial_offset_last_record_offsets_) / sizeof(uint64_t);
-TEST(LogTest, Empty) {
- ASSERT_EQ("EOF", Read());
-}
+TEST(LogTest, Empty) { ASSERT_EQ("EOF", Read()); }
TEST(LogTest, ReadWrite) {
Write("foo");
@@ -306,7 +294,7 @@ TEST(LogTest, Fragmentation) {
TEST(LogTest, MarginalTrailer) {
// Make a trailer that is exactly the same length as an empty record.
- const int n = kBlockSize - 2*kHeaderSize;
+ const int n = kBlockSize - 2 * kHeaderSize;
Write(BigString("foo", n));
ASSERT_EQ(kBlockSize - kHeaderSize, WrittenBytes());
Write("");
@@ -319,7 +307,7 @@ TEST(LogTest, MarginalTrailer) {
TEST(LogTest, MarginalTrailer2) {
// Make a trailer that is exactly the same length as an empty record.
- const int n = kBlockSize - 2*kHeaderSize;
+ const int n = kBlockSize - 2 * kHeaderSize;
Write(BigString("foo", n));
ASSERT_EQ(kBlockSize - kHeaderSize, WrittenBytes());
Write("bar");
@@ -331,7 +319,7 @@ TEST(LogTest, MarginalTrailer2) {
}
TEST(LogTest, ShortTrailer) {
- const int n = kBlockSize - 2*kHeaderSize + 4;
+ const int n = kBlockSize - 2 * kHeaderSize + 4;
Write(BigString("foo", n));
ASSERT_EQ(kBlockSize - kHeaderSize + 4, WrittenBytes());
Write("");
@@ -343,7 +331,7 @@ TEST(LogTest, ShortTrailer) {
}
TEST(LogTest, AlignedEof) {
- const int n = kBlockSize - 2*kHeaderSize + 4;
+ const int n = kBlockSize - 2 * kHeaderSize + 4;
Write(BigString("foo", n));
ASSERT_EQ(kBlockSize - kHeaderSize + 4, WrittenBytes());
ASSERT_EQ(BigString("foo", n), Read());
@@ -394,7 +382,7 @@ TEST(LogTest, BadRecordType) {
TEST(LogTest, TruncatedTrailingRecordIsIgnored) {
Write("foo");
- ShrinkSize(4); // Drop all payload as well as a header byte
+ ShrinkSize(4); // Drop all payload as well as a header byte
ASSERT_EQ("EOF", Read());
// Truncated last record is ignored, not treated as an error.
ASSERT_EQ(0, DroppedBytes());
@@ -492,7 +480,7 @@ TEST(LogTest, SkipIntoMultiRecord) {
// If initial_offset points to a record after first(R1) but before first(R2)
// incomplete fragment errors are not actual errors, and must be suppressed
// until a new first or full record is encountered.
- Write(BigString("foo", 3*kBlockSize));
+ Write(BigString("foo", 3 * kBlockSize));
Write("correct");
StartReadingAt(kBlockSize);
@@ -514,44 +502,30 @@ TEST(LogTest, ErrorJoinsRecords) {
Write("correct");
// Wipe the middle block
- for (int offset = kBlockSize; offset < 2*kBlockSize; offset++) {
+ for (int offset = kBlockSize; offset < 2 * kBlockSize; offset++) {
SetByte(offset, 'x');
}
ASSERT_EQ("correct", Read());
ASSERT_EQ("EOF", Read());
const size_t dropped = DroppedBytes();
- ASSERT_LE(dropped, 2*kBlockSize + 100);
- ASSERT_GE(dropped, 2*kBlockSize);
+ ASSERT_LE(dropped, 2 * kBlockSize + 100);
+ ASSERT_GE(dropped, 2 * kBlockSize);
}
-TEST(LogTest, ReadStart) {
- CheckInitialOffsetRecord(0, 0);
-}
+TEST(LogTest, ReadStart) { CheckInitialOffsetRecord(0, 0); }
-TEST(LogTest, ReadSecondOneOff) {
- CheckInitialOffsetRecord(1, 1);
-}
+TEST(LogTest, ReadSecondOneOff) { CheckInitialOffsetRecord(1, 1); }
-TEST(LogTest, ReadSecondTenThousand) {
- CheckInitialOffsetRecord(10000, 1);
-}
+TEST(LogTest, ReadSecondTenThousand) { CheckInitialOffsetRecord(10000, 1); }
-TEST(LogTest, ReadSecondStart) {
- CheckInitialOffsetRecord(10007, 1);
-}
+TEST(LogTest, ReadSecondStart) { CheckInitialOffsetRecord(10007, 1); }
-TEST(LogTest, ReadThirdOneOff) {
- CheckInitialOffsetRecord(10008, 2);
-}
+TEST(LogTest, ReadThirdOneOff) { CheckInitialOffsetRecord(10008, 2); }
-TEST(LogTest, ReadThirdStart) {
- CheckInitialOffsetRecord(20014, 2);
-}
+TEST(LogTest, ReadThirdStart) { CheckInitialOffsetRecord(20014, 2); }
-TEST(LogTest, ReadFourthOneOff) {
- CheckInitialOffsetRecord(20015, 3);
-}
+TEST(LogTest, ReadFourthOneOff) { CheckInitialOffsetRecord(20015, 3); }
TEST(LogTest, ReadFourthFirstBlockTrailer) {
CheckInitialOffsetRecord(log::kBlockSize - 4, 3);
@@ -575,17 +549,11 @@ TEST(LogTest, ReadInitialOffsetIntoBlockPadding) {
CheckInitialOffsetRecord(3 * log::kBlockSize - 3, 5);
}
-TEST(LogTest, ReadEnd) {
- CheckOffsetPastEndReturnsNoRecords(0);
-}
+TEST(LogTest, ReadEnd) { CheckOffsetPastEndReturnsNoRecords(0); }
-TEST(LogTest, ReadPastEnd) {
- CheckOffsetPastEndReturnsNoRecords(5);
-}
+TEST(LogTest, ReadPastEnd) { CheckOffsetPastEndReturnsNoRecords(5); }
} // namespace log
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/db/log_writer.cc b/db/log_writer.cc
index 74a0327..5e83f6a 100644
--- a/db/log_writer.cc
+++ b/db/log_writer.cc
@@ -5,6 +5,7 @@
#include "db/log_writer.h"
#include <stdint.h>
+
#include "leveldb/env.h"
#include "util/coding.h"
#include "util/crc32c.h"
@@ -19,9 +20,7 @@ static void InitTypeCrc(uint32_t* type_crc) {
}
}
-Writer::Writer(WritableFile* dest)
- : dest_(dest),
- block_offset_(0) {
+Writer::Writer(WritableFile* dest) : dest_(dest), block_offset_(0) {
InitTypeCrc(type_crc_);
}
@@ -30,8 +29,7 @@ Writer::Writer(WritableFile* dest, uint64_t dest_length)
InitTypeCrc(type_crc_);
}
-Writer::~Writer() {
-}
+Writer::~Writer() {}
Status Writer::AddRecord(const Slice& slice) {
const char* ptr = slice.data();
@@ -49,7 +47,7 @@ Status Writer::AddRecord(const Slice& slice) {
// Switch to a new block
if (leftover > 0) {
// Fill the trailer (literal below relies on kHeaderSize being 7)
- assert(kHeaderSize == 7);
+ static_assert(kHeaderSize == 7, "");
dest_->Append(Slice("\x00\x00\x00\x00\x00\x00", leftover));
}
block_offset_ = 0;
@@ -81,30 +79,31 @@ Status Writer::AddRecord(const Slice& slice) {
return s;
}
-Status Writer::EmitPhysicalRecord(RecordType t, const char* ptr, size_t n) {
- assert(n <= 0xffff); // Must fit in two bytes
- assert(block_offset_ + kHeaderSize + n <= kBlockSize);
+Status Writer::EmitPhysicalRecord(RecordType t, const char* ptr,
+ size_t length) {
+ assert(length <= 0xffff); // Must fit in two bytes
+ assert(block_offset_ + kHeaderSize + length <= kBlockSize);
// Format the header
char buf[kHeaderSize];
- buf[4] = static_cast<char>(n & 0xff);
- buf[5] = static_cast<char>(n >> 8);
+ buf[4] = static_cast<char>(length & 0xff);
+ buf[5] = static_cast<char>(length >> 8);
buf[6] = static_cast<char>(t);
// Compute the crc of the record type and the payload.
- uint32_t crc = crc32c::Extend(type_crc_[t], ptr, n);
- crc = crc32c::Mask(crc); // Adjust for storage
+ uint32_t crc = crc32c::Extend(type_crc_[t], ptr, length);
+ crc = crc32c::Mask(crc); // Adjust for storage
EncodeFixed32(buf, crc);
// Write the header and the payload
Status s = dest_->Append(Slice(buf, kHeaderSize));
if (s.ok()) {
- s = dest_->Append(Slice(ptr, n));
+ s = dest_->Append(Slice(ptr, length));
if (s.ok()) {
s = dest_->Flush();
}
}
- block_offset_ += kHeaderSize + n;
+ block_offset_ += kHeaderSize + length;
return s;
}
diff --git a/db/log_writer.h b/db/log_writer.h
index 9e7cc47..840809d 100644
--- a/db/log_writer.h
+++ b/db/log_writer.h
@@ -6,6 +6,7 @@
#define STORAGE_LEVELDB_DB_LOG_WRITER_H_
#include <stdint.h>
+
#include "db/log_format.h"
#include "leveldb/slice.h"
#include "leveldb/status.h"
@@ -34,7 +35,7 @@ class Writer {
private:
WritableFile* dest_;
- int block_offset_; // Current offset in block
+ int block_offset_; // Current offset in block
// crc32c values for all supported record types. These are
// pre-computed to reduce the overhead of computing the crc of the
diff --git a/db/memtable.cc b/db/memtable.cc
index 287afdb..c91405c 100644
--- a/db/memtable.cc
+++ b/db/memtable.cc
@@ -18,20 +18,15 @@ static Slice GetLengthPrefixedSlice(const char* data) {
return Slice(p, len);
}
-MemTable::MemTable(const InternalKeyComparator& cmp)
- : comparator_(cmp),
- refs_(0),
- table_(comparator_, &arena_) {
-}
+MemTable::MemTable(const InternalKeyComparator& comparator)
+ : comparator_(comparator), refs_(0), table_(comparator_, &arena_) {}
-MemTable::~MemTable() {
- assert(refs_ == 0);
-}
+MemTable::~MemTable() { assert(refs_ == 0); }
size_t MemTable::ApproximateMemoryUsage() { return arena_.MemoryUsage(); }
-int MemTable::KeyComparator::operator()(const char* aptr, const char* bptr)
- const {
+int MemTable::KeyComparator::operator()(const char* aptr,
+ const char* bptr) const {
// Internal keys are encoded as length-prefixed strings.
Slice a = GetLengthPrefixedSlice(aptr);
Slice b = GetLengthPrefixedSlice(bptr);
@@ -48,9 +43,9 @@ static const char* EncodeKey(std::string* scratch, const Slice& target) {
return scratch->data();
}
-class MemTableIterator: public Iterator {
+class MemTableIterator : public Iterator {
public:
- explicit MemTableIterator(MemTable::Table* table) : iter_(table) { }
+ explicit MemTableIterator(MemTable::Table* table) : iter_(table) {}
virtual bool Valid() const { return iter_.Valid(); }
virtual void Seek(const Slice& k) { iter_.Seek(EncodeKey(&tmp_, k)); }
@@ -68,19 +63,16 @@ class MemTableIterator: public Iterator {
private:
MemTable::Table::Iterator iter_;
- std::string tmp_; // For passing to EncodeKey
+ std::string tmp_; // For passing to EncodeKey
// No copying allowed
MemTableIterator(const MemTableIterator&);
void operator=(const MemTableIterator&);
};
-Iterator* MemTable::NewIterator() {
- return new MemTableIterator(&table_);
-}
+Iterator* MemTable::NewIterator() { return new MemTableIterator(&table_); }
-void MemTable::Add(SequenceNumber s, ValueType type,
- const Slice& key,
+void MemTable::Add(SequenceNumber s, ValueType type, const Slice& key,
const Slice& value) {
// Format of an entry is concatenation of:
// key_size : varint32 of internal_key.size()
@@ -90,9 +82,9 @@ void MemTable::Add(SequenceNumber s, ValueType type,
size_t key_size = key.size();
size_t val_size = value.size();
size_t internal_key_size = key_size + 8;
- const size_t encoded_len =
- VarintLength(internal_key_size) + internal_key_size +
- VarintLength(val_size) + val_size;
+ const size_t encoded_len = VarintLength(internal_key_size) +
+ internal_key_size + VarintLength(val_size) +
+ val_size;
char* buf = arena_.Allocate(encoded_len);
char* p = EncodeVarint32(buf, internal_key_size);
memcpy(p, key.data(), key_size);
@@ -121,10 +113,9 @@ bool MemTable::Get(const LookupKey& key, std::string* value, Status* s) {
// all entries with overly large sequence numbers.
const char* entry = iter.key();
uint32_t key_length;
- const char* key_ptr = GetVarint32Ptr(entry, entry+5, &key_length);
+ const char* key_ptr = GetVarint32Ptr(entry, entry + 5, &key_length);
if (comparator_.comparator.user_comparator()->Compare(
- Slice(key_ptr, key_length - 8),
- key.user_key()) == 0) {
+ Slice(key_ptr, key_length - 8), key.user_key()) == 0) {
// Correct user key
const uint64_t tag = DecodeFixed64(key_ptr + key_length - 8);
switch (static_cast<ValueType>(tag & 0xff)) {
diff --git a/db/memtable.h b/db/memtable.h
index f2a6736..ef18bb5 100644
--- a/db/memtable.h
+++ b/db/memtable.h
@@ -6,9 +6,10 @@
#define STORAGE_LEVELDB_DB_MEMTABLE_H_
#include <string>
-#include "leveldb/db.h"
+
#include "db/dbformat.h"
#include "db/skiplist.h"
+#include "leveldb/db.h"
#include "util/arena.h"
namespace leveldb {
@@ -49,8 +50,7 @@ class MemTable {
// Add an entry into memtable that maps key to value at the
// specified sequence number and with the specified type.
// Typically value will be empty if type==kTypeDeletion.
- void Add(SequenceNumber seq, ValueType type,
- const Slice& key,
+ void Add(SequenceNumber seq, ValueType type, const Slice& key,
const Slice& value);
// If memtable contains a value for key, store it in *value and return true.
@@ -64,7 +64,7 @@ class MemTable {
struct KeyComparator {
const InternalKeyComparator comparator;
- explicit KeyComparator(const InternalKeyComparator& c) : comparator(c) { }
+ explicit KeyComparator(const InternalKeyComparator& c) : comparator(c) {}
int operator()(const char* a, const char* b) const;
};
friend class MemTableIterator;
diff --git a/db/recovery_test.cc b/db/recovery_test.cc
index 87bd53c..547a959 100644
--- a/db/recovery_test.cc
+++ b/db/recovery_test.cc
@@ -86,15 +86,13 @@ class RecoveryTest {
std::string current;
ASSERT_OK(ReadFileToString(env_, CurrentFileName(dbname_), ¤t));
size_t len = current.size();
- if (len > 0 && current[len-1] == '\n') {
+ if (len > 0 && current[len - 1] == '\n') {
current.resize(len - 1);
}
return dbname_ + "/" + current;
}
- std::string LogName(uint64_t number) {
- return LogFileName(dbname_, number);
- }
+ std::string LogName(uint64_t number) { return LogFileName(dbname_, number); }
size_t DeleteLogFiles() {
// Linux allows unlinking open files, but Windows does not.
@@ -107,13 +105,9 @@ class RecoveryTest {
return logs.size();
}
- void DeleteManifestFile() {
- ASSERT_OK(env_->DeleteFile(ManifestFileName()));
- }
+ void DeleteManifestFile() { ASSERT_OK(env_->DeleteFile(ManifestFileName())); }
- uint64_t FirstLogFile() {
- return GetFiles(kLogFile)[0];
- }
+ uint64_t FirstLogFile() { return GetFiles(kLogFile)[0]; }
std::vector<uint64_t> GetFiles(FileType t) {
std::vector<std::string> filenames;
@@ -129,13 +123,9 @@ class RecoveryTest {
return result;
}
- int NumLogs() {
- return GetFiles(kLogFile).size();
- }
+ int NumLogs() { return GetFiles(kLogFile).size(); }
- int NumTables() {
- return GetFiles(kTableFile).size();
- }
+ int NumTables() { return GetFiles(kTableFile).size(); }
uint64_t FileSize(const std::string& fname) {
uint64_t result;
@@ -143,9 +133,7 @@ class RecoveryTest {
return result;
}
- void CompactMemTable() {
- dbfull()->TEST_CompactMemTable();
- }
+ void CompactMemTable() { dbfull()->TEST_CompactMemTable(); }
// Directly construct a log file that sets key to val.
void MakeLogFile(uint64_t lognum, SequenceNumber seq, Slice key, Slice val) {
@@ -197,7 +185,7 @@ TEST(RecoveryTest, LargeManifestCompacted) {
uint64_t len = FileSize(old_manifest);
WritableFile* file;
ASSERT_OK(env()->NewAppendableFile(old_manifest, &file));
- std::string zeroes(3*1048576 - static_cast<size_t>(len), 0);
+ std::string zeroes(3 * 1048576 - static_cast<size_t>(len), 0);
ASSERT_OK(file->Append(zeroes));
ASSERT_OK(file->Flush());
delete file;
@@ -270,7 +258,7 @@ TEST(RecoveryTest, MultipleMemTables) {
// Force creation of multiple memtables by reducing the write buffer size.
Options opt;
opt.reuse_logs = true;
- opt.write_buffer_size = (kNum*100) / 2;
+ opt.write_buffer_size = (kNum * 100) / 2;
Open(&opt);
ASSERT_LE(2, NumTables());
ASSERT_EQ(1, NumLogs());
@@ -289,16 +277,16 @@ TEST(RecoveryTest, MultipleLogFiles) {
// Make a bunch of uncompacted log files.
uint64_t old_log = FirstLogFile();
- MakeLogFile(old_log+1, 1000, "hello", "world");
- MakeLogFile(old_log+2, 1001, "hi", "there");
- MakeLogFile(old_log+3, 1002, "foo", "bar2");
+ MakeLogFile(old_log + 1, 1000, "hello", "world");
+ MakeLogFile(old_log + 2, 1001, "hi", "there");
+ MakeLogFile(old_log + 3, 1002, "foo", "bar2");
// Recover and check that all log files were processed.
Open();
ASSERT_LE(1, NumTables());
ASSERT_EQ(1, NumLogs());
uint64_t new_log = FirstLogFile();
- ASSERT_LE(old_log+3, new_log);
+ ASSERT_LE(old_log + 3, new_log);
ASSERT_EQ("bar2", Get("foo"));
ASSERT_EQ("world", Get("hello"));
ASSERT_EQ("there", Get("hi"));
@@ -316,7 +304,7 @@ TEST(RecoveryTest, MultipleLogFiles) {
// Check that introducing an older log file does not cause it to be re-read.
Close();
- MakeLogFile(old_log+1, 2000, "hello", "stale write");
+ MakeLogFile(old_log + 1, 2000, "hello", "stale write");
Open();
ASSERT_LE(1, NumTables());
ASSERT_EQ(1, NumLogs());
@@ -339,6 +327,4 @@ TEST(RecoveryTest, ManifestMissing) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/db/repair.cc b/db/repair.cc
index df8dcd2..d5ecc45 100644
--- a/db/repair.cc
+++ b/db/repair.cc
@@ -84,9 +84,7 @@ class Repairer {
"recovered %d files; %llu bytes. "
"Some data may have been lost. "
"****",
- dbname_.c_str(),
- static_cast<int>(tables_.size()),
- bytes);
+ dbname_.c_str(), static_cast<int>(tables_.size()), bytes);
}
return status;
}
@@ -152,8 +150,7 @@ class Repairer {
Status status = ConvertLogToTable(logs_[i]);
if (!status.ok()) {
Log(options_.info_log, "Log #%llu: ignoring conversion error: %s",
- (unsigned long long) logs_[i],
- status.ToString().c_str());
+ (unsigned long long)logs_[i], status.ToString().c_str());
}
ArchiveFile(logname);
}
@@ -167,8 +164,7 @@ class Repairer {
virtual void Corruption(size_t bytes, const Status& s) {
// We print error messages for corruption, but continue repairing.
Log(info_log, "Log #%llu: dropping %d bytes; %s",
- (unsigned long long) lognum,
- static_cast<int>(bytes),
+ (unsigned long long)lognum, static_cast<int>(bytes),
s.ToString().c_str());
}
};
@@ -190,8 +186,8 @@ class Repairer {
// corruptions cause entire commits to be skipped instead of
// propagating bad information (like overly large sequence
// numbers).
- log::Reader reader(lfile, &reporter, false/*do not checksum*/,
- 0/*initial_offset*/);
+ log::Reader reader(lfile, &reporter, false /*do not checksum*/,
+ 0 /*initial_offset*/);
// Read all the records and add to a memtable
std::string scratch;
@@ -202,8 +198,8 @@ class Repairer {
int counter = 0;
while (reader.ReadRecord(&record, &scratch)) {
if (record.size() < 12) {
- reporter.Corruption(
- record.size(), Status::Corruption("log record too small"));
+ reporter.Corruption(record.size(),
+ Status::Corruption("log record too small"));
continue;
}
WriteBatchInternal::SetContents(&batch, record);
@@ -212,8 +208,7 @@ class Repairer {
counter += WriteBatchInternal::Count(&batch);
} else {
Log(options_.info_log, "Log #%llu: ignoring %s",
- (unsigned long long) log,
- status.ToString().c_str());
+ (unsigned long long)log, status.ToString().c_str());
status = Status::OK(); // Keep going with rest of file
}
}
@@ -234,9 +229,7 @@ class Repairer {
}
}
Log(options_.info_log, "Log #%llu: %d ops saved to Table #%llu %s",
- (unsigned long long) log,
- counter,
- (unsigned long long) meta.number,
+ (unsigned long long)log, counter, (unsigned long long)meta.number,
status.ToString().c_str());
return status;
}
@@ -272,8 +265,7 @@ class Repairer {
ArchiveFile(TableFileName(dbname_, number));
ArchiveFile(SSTTableFileName(dbname_, number));
Log(options_.info_log, "Table #%llu: dropped: %s",
- (unsigned long long) t.meta.number,
- status.ToString().c_str());
+ (unsigned long long)t.meta.number, status.ToString().c_str());
return;
}
@@ -287,8 +279,7 @@ class Repairer {
Slice key = iter->key();
if (!ParseInternalKey(key, &parsed)) {
Log(options_.info_log, "Table #%llu: unparsable key %s",
- (unsigned long long) t.meta.number,
- EscapeString(key).c_str());
+ (unsigned long long)t.meta.number, EscapeString(key).c_str());
continue;
}
@@ -307,9 +298,7 @@ class Repairer {
}
delete iter;
Log(options_.info_log, "Table #%llu: %d entries %s",
- (unsigned long long) t.meta.number,
- counter,
- status.ToString().c_str());
+ (unsigned long long)t.meta.number, counter, status.ToString().c_str());
if (status.ok()) {
tables_.push_back(t);
@@ -363,7 +352,7 @@ class Repairer {
s = env_->RenameFile(copy, orig);
if (s.ok()) {
Log(options_.info_log, "Table #%llu: %d entries repaired",
- (unsigned long long) t.meta.number, counter);
+ (unsigned long long)t.meta.number, counter);
tables_.push_back(t);
}
}
@@ -395,11 +384,11 @@ class Repairer {
for (size_t i = 0; i < tables_.size(); i++) {
// TODO(opt): separate out into multiple levels
const TableInfo& t = tables_[i];
- edit_.AddFile(0, t.meta.number, t.meta.file_size,
- t.meta.smallest, t.meta.largest);
+ edit_.AddFile(0, t.meta.number, t.meta.file_size, t.meta.smallest,
+ t.meta.largest);
}
- //fprintf(stderr, "NewDescriptor:\n%s\n", edit_.DebugString().c_str());
+ // fprintf(stderr, "NewDescriptor:\n%s\n", edit_.DebugString().c_str());
{
log::Writer log(file);
std::string record;
@@ -447,8 +436,8 @@ class Repairer {
new_file.append("/");
new_file.append((slash == nullptr) ? fname.c_str() : slash + 1);
Status s = env_->RenameFile(fname, new_file);
- Log(options_.info_log, "Archiving %s: %s\n",
- fname.c_str(), s.ToString().c_str());
+ Log(options_.info_log, "Archiving %s: %s\n", fname.c_str(),
+ s.ToString().c_str());
}
};
} // namespace
diff --git a/db/skiplist.h b/db/skiplist.h
index 7ac914b..05e5733 100644
--- a/db/skiplist.h
+++ b/db/skiplist.h
@@ -38,7 +38,7 @@ namespace leveldb {
class Arena;
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
class SkipList {
private:
struct Node;
@@ -100,13 +100,13 @@ class SkipList {
// Immutable after construction
Comparator const compare_;
- Arena* const arena_; // Arena used for allocations of nodes
+ Arena* const arena_; // Arena used for allocations of nodes
Node* const head_;
// Modified only by Insert(). Read racily by readers, but stale
// values are ok.
- std::atomic<int> max_height_; // Height of the entire list
+ std::atomic<int> max_height_; // Height of the entire list
inline int GetMaxHeight() const {
return max_height_.load(std::memory_order_relaxed);
@@ -143,9 +143,9 @@ class SkipList {
};
// Implementation details follow
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
struct SkipList<Key, Comparator>::Node {
- explicit Node(const Key& k) : key(k) { }
+ explicit Node(const Key& k) : key(k) {}
Key const key;
@@ -179,38 +179,38 @@ struct SkipList<Key, Comparator>::Node {
std::atomic<Node*> next_[1];
};
-template<typename Key, class Comparator>
-typename SkipList<Key, Comparator>::Node*
-SkipList<Key, Comparator>::NewNode(const Key& key, int height) {
+template <typename Key, class Comparator>
+typename SkipList<Key, Comparator>::Node* SkipList<Key, Comparator>::NewNode(
+ const Key& key, int height) {
char* const node_memory = arena_->AllocateAligned(
sizeof(Node) + sizeof(std::atomic<Node*>) * (height - 1));
return new (node_memory) Node(key);
}
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
inline SkipList<Key, Comparator>::Iterator::Iterator(const SkipList* list) {
list_ = list;
node_ = nullptr;
}
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
inline bool SkipList<Key, Comparator>::Iterator::Valid() const {
return node_ != nullptr;
}
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
inline const Key& SkipList<Key, Comparator>::Iterator::key() const {
assert(Valid());
return node_->key;
}
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
inline void SkipList<Key, Comparator>::Iterator::Next() {
assert(Valid());
node_ = node_->Next(0);
}
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
inline void SkipList<Key, Comparator>::Iterator::Prev() {
// Instead of using explicit "prev" links, we just search for the
// last node that falls before key.
@@ -221,17 +221,17 @@ inline void SkipList<Key, Comparator>::Iterator::Prev() {
}
}
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
inline void SkipList<Key, Comparator>::Iterator::Seek(const Key& target) {
node_ = list_->FindGreaterOrEqual(target, nullptr);
}
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
inline void SkipList<Key, Comparator>::Iterator::SeekToFirst() {
node_ = list_->head_->Next(0);
}
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
inline void SkipList<Key, Comparator>::Iterator::SeekToLast() {
node_ = list_->FindLast();
if (node_ == list_->head_) {
@@ -239,7 +239,7 @@ inline void SkipList<Key, Comparator>::Iterator::SeekToLast() {
}
}
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
int SkipList<Key, Comparator>::RandomHeight() {
// Increase height with probability 1 in kBranching
static const unsigned int kBranching = 4;
@@ -252,13 +252,13 @@ int SkipList<Key, Comparator>::RandomHeight() {
return height;
}
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
bool SkipList<Key, Comparator>::KeyIsAfterNode(const Key& key, Node* n) const {
// null n is considered infinite
return (n != nullptr) && (compare_(n->key, key) < 0);
}
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
typename SkipList<Key, Comparator>::Node*
SkipList<Key, Comparator>::FindGreaterOrEqual(const Key& key,
Node** prev) const {
@@ -281,7 +281,7 @@ SkipList<Key, Comparator>::FindGreaterOrEqual(const Key& key,
}
}
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
typename SkipList<Key, Comparator>::Node*
SkipList<Key, Comparator>::FindLessThan(const Key& key) const {
Node* x = head_;
@@ -302,7 +302,7 @@ SkipList<Key, Comparator>::FindLessThan(const Key& key) const {
}
}
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
typename SkipList<Key, Comparator>::Node* SkipList<Key, Comparator>::FindLast()
const {
Node* x = head_;
@@ -322,7 +322,7 @@ typename SkipList<Key, Comparator>::Node* SkipList<Key, Comparator>::FindLast()
}
}
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
SkipList<Key, Comparator>::SkipList(Comparator cmp, Arena* arena)
: compare_(cmp),
arena_(arena),
@@ -334,7 +334,7 @@ SkipList<Key, Comparator>::SkipList(Comparator cmp, Arena* arena)
}
}
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
void SkipList<Key, Comparator>::Insert(const Key& key) {
// TODO(opt): We can use a barrier-free variant of FindGreaterOrEqual()
// here since Insert() is externally synchronized.
@@ -368,7 +368,7 @@ void SkipList<Key, Comparator>::Insert(const Key& key) {
}
}
-template<typename Key, class Comparator>
+template <typename Key, class Comparator>
bool SkipList<Key, Comparator>::Contains(const Key& key) const {
Node* x = FindGreaterOrEqual(key, nullptr);
if (x != nullptr && Equal(key, x->key)) {
diff --git a/db/skiplist_test.cc b/db/skiplist_test.cc
index 38c1941..9fa2d96 100644
--- a/db/skiplist_test.cc
+++ b/db/skiplist_test.cc
@@ -31,7 +31,7 @@ struct Comparator {
}
};
-class SkipTest { };
+class SkipTest {};
TEST(SkipTest, Empty) {
Arena arena;
@@ -117,8 +117,7 @@ TEST(SkipTest, InsertAndLookup) {
// Compare against model iterator
for (std::set<Key>::reverse_iterator model_iter = keys.rbegin();
- model_iter != keys.rend();
- ++model_iter) {
+ model_iter != keys.rend(); ++model_iter) {
ASSERT_TRUE(iter.Valid());
ASSERT_EQ(*model_iter, iter.key());
iter.Prev();
@@ -160,12 +159,12 @@ class ConcurrentTest {
static uint64_t hash(Key key) { return key & 0xff; }
static uint64_t HashNumbers(uint64_t k, uint64_t g) {
- uint64_t data[2] = { k, g };
+ uint64_t data[2] = {k, g};
return Hash(reinterpret_cast<char*>(data), sizeof(data), 0);
}
static Key MakeKey(uint64_t k, uint64_t g) {
- assert(sizeof(Key) == sizeof(uint64_t));
+ static_assert(sizeof(Key) == sizeof(uint64_t), "");
assert(k <= K); // We sometimes pass K to seek to the end of the skiplist
assert(g <= 0xffffffffu);
return ((k << 40) | (g << 8) | (HashNumbers(k, g) & 0xff));
@@ -195,9 +194,7 @@ class ConcurrentTest {
void Set(int k, int v) {
generation[k].store(v, std::memory_order_release);
}
- int Get(int k) {
- return generation[k].load(std::memory_order_acquire);
- }
+ int Get(int k) { return generation[k].load(std::memory_order_acquire); }
State() {
for (int k = 0; k < K; k++) {
@@ -216,7 +213,7 @@ class ConcurrentTest {
SkipList<Key, Comparator> list_;
public:
- ConcurrentTest() : list_(Comparator(), &arena_) { }
+ ConcurrentTest() : list_(Comparator(), &arena_) {}
// REQUIRES: External synchronization
void WriteStep(Random* rnd) {
@@ -255,11 +252,9 @@ class ConcurrentTest {
// Note that generation 0 is never inserted, so it is ok if
// <*,0,*> is missing.
ASSERT_TRUE((gen(pos) == 0) ||
- (gen(pos) > static_cast<Key>(initial_state.Get(key(pos))))
- ) << "key: " << key(pos)
- << "; gen: " << gen(pos)
- << "; initgen: "
- << initial_state.Get(key(pos));
+ (gen(pos) > static_cast<Key>(initial_state.Get(key(pos)))))
+ << "key: " << key(pos) << "; gen: " << gen(pos)
+ << "; initgen: " << initial_state.Get(key(pos));
// Advance to next key in the valid key space
if (key(pos) < key(current)) {
@@ -305,17 +300,10 @@ class TestState {
int seed_;
std::atomic<bool> quit_flag_;
- enum ReaderState {
- STARTING,
- RUNNING,
- DONE
- };
+ enum ReaderState { STARTING, RUNNING, DONE };
explicit TestState(int s)
- : seed_(s),
- quit_flag_(false),
- state_(STARTING),
- state_cv_(&mu_) {}
+ : seed_(s), quit_flag_(false), state_(STARTING), state_cv_(&mu_) {}
void Wait(ReaderState s) LOCKS_EXCLUDED(mu_) {
mu_.Lock();
@@ -378,6 +366,4 @@ TEST(SkipTest, Concurrent5) { RunConcurrent(5); }
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/db/snapshot.h b/db/snapshot.h
index c43d9f9..9f1d664 100644
--- a/db/snapshot.h
+++ b/db/snapshot.h
@@ -44,8 +44,14 @@ class SnapshotList {
}
bool empty() const { return head_.next_ == &head_; }
- SnapshotImpl* oldest() const { assert(!empty()); return head_.next_; }
- SnapshotImpl* newest() const { assert(!empty()); return head_.prev_; }
+ SnapshotImpl* oldest() const {
+ assert(!empty());
+ return head_.next_;
+ }
+ SnapshotImpl* newest() const {
+ assert(!empty());
+ return head_.prev_;
+ }
// Creates a SnapshotImpl and appends it to the end of the list.
SnapshotImpl* New(SequenceNumber sequence_number) {
diff --git a/db/table_cache.cc b/db/table_cache.cc
index 7226d3b..73f05fd 100644
--- a/db/table_cache.cc
+++ b/db/table_cache.cc
@@ -29,18 +29,14 @@ static void UnrefEntry(void* arg1, void* arg2) {
cache->Release(h);
}
-TableCache::TableCache(const std::string& dbname,
- const Options& options,
+TableCache::TableCache(const std::string& dbname, const Options& options,
int entries)
: env_(options.env),
dbname_(dbname),
options_(options),
- cache_(NewLRUCache(entries)) {
-}
+ cache_(NewLRUCache(entries)) {}
-TableCache::~TableCache() {
- delete cache_;
-}
+TableCache::~TableCache() { delete cache_; }
Status TableCache::FindTable(uint64_t file_number, uint64_t file_size,
Cache::Handle** handle) {
@@ -80,8 +76,7 @@ Status TableCache::FindTable(uint64_t file_number, uint64_t file_size,
}
Iterator* TableCache::NewIterator(const ReadOptions& options,
- uint64_t file_number,
- uint64_t file_size,
+ uint64_t file_number, uint64_t file_size,
Table** tableptr) {
if (tableptr != nullptr) {
*tableptr = nullptr;
@@ -102,17 +97,15 @@ Iterator* TableCache::NewIterator(const ReadOptions& options,
return result;
}
-Status TableCache::Get(const ReadOptions& options,
- uint64_t file_number,
- uint64_t file_size,
- const Slice& k,
- void* arg,
- void (*saver)(void*, const Slice&, const Slice&)) {
+Status TableCache::Get(const ReadOptions& options, uint64_t file_number,
+ uint64_t file_size, const Slice& k, void* arg,
+ void (*handle_result)(void*, const Slice&,
+ const Slice&)) {
Cache::Handle* handle = nullptr;
Status s = FindTable(file_number, file_size, &handle);
if (s.ok()) {
Table* t = reinterpret_cast<TableAndFile*>(cache_->Value(handle))->table;
- s = t->InternalGet(options, k, arg, saver);
+ s = t->InternalGet(options, k, arg, handle_result);
cache_->Release(handle);
}
return s;
diff --git a/db/table_cache.h b/db/table_cache.h
index ae8bee5..21ae92d 100644
--- a/db/table_cache.h
+++ b/db/table_cache.h
@@ -7,8 +7,10 @@
#ifndef STORAGE_LEVELDB_DB_TABLE_CACHE_H_
#define STORAGE_LEVELDB_DB_TABLE_CACHE_H_
-#include <string>
#include <stdint.h>
+
+#include <string>
+
#include "db/dbformat.h"
#include "leveldb/cache.h"
#include "leveldb/table.h"
@@ -30,18 +32,13 @@ class TableCache {
// underlies the returned iterator. The returned "*tableptr" object is owned
// by the cache and should not be deleted, and is valid for as long as the
// returned iterator is live.
- Iterator* NewIterator(const ReadOptions& options,
- uint64_t file_number,
- uint64_t file_size,
- Table** tableptr = nullptr);
+ Iterator* NewIterator(const ReadOptions& options, uint64_t file_number,
+ uint64_t file_size, Table** tableptr = nullptr);
// If a seek to internal key "k" in specified file finds an entry,
// call (*handle_result)(arg, found_key, found_value).
- Status Get(const ReadOptions& options,
- uint64_t file_number,
- uint64_t file_size,
- const Slice& k,
- void* arg,
+ Status Get(const ReadOptions& options, uint64_t file_number,
+ uint64_t file_size, const Slice& k, void* arg,
void (*handle_result)(void*, const Slice&, const Slice&));
// Evict any entry for the specified file number
diff --git a/db/version_edit.cc b/db/version_edit.cc
index b7a366d..44a4d02 100644
--- a/db/version_edit.cc
+++ b/db/version_edit.cc
@@ -12,15 +12,15 @@ namespace leveldb {
// Tag numbers for serialized VersionEdit. These numbers are written to
// disk and should not be changed.
enum Tag {
- kComparator = 1,
- kLogNumber = 2,
- kNextFileNumber = 3,
- kLastSequence = 4,
- kCompactPointer = 5,
- kDeletedFile = 6,
- kNewFile = 7,
+ kComparator = 1,
+ kLogNumber = 2,
+ kNextFileNumber = 3,
+ kLastSequence = 4,
+ kCompactPointer = 5,
+ kDeletedFile = 6,
+ kNewFile = 7,
// 8 was used for large value refs
- kPrevLogNumber = 9
+ kPrevLogNumber = 9
};
void VersionEdit::Clear() {
@@ -67,8 +67,7 @@ void VersionEdit::EncodeTo(std::string* dst) const {
}
for (DeletedFileSet::const_iterator iter = deleted_files_.begin();
- iter != deleted_files_.end();
- ++iter) {
+ iter != deleted_files_.end(); ++iter) {
PutVarint32(dst, kDeletedFile);
PutVarint32(dst, iter->first); // level
PutVarint64(dst, iter->second); // file number
@@ -97,8 +96,7 @@ static bool GetInternalKey(Slice* input, InternalKey* dst) {
static bool GetLevel(Slice* input, int* level) {
uint32_t v;
- if (GetVarint32(input, &v) &&
- v < config::kNumLevels) {
+ if (GetVarint32(input, &v) && v < config::kNumLevels) {
*level = v;
return true;
} else {
@@ -163,8 +161,7 @@ Status VersionEdit::DecodeFrom(const Slice& src) {
break;
case kCompactPointer:
- if (GetLevel(&input, &level) &&
- GetInternalKey(&input, &key)) {
+ if (GetLevel(&input, &level) && GetInternalKey(&input, &key)) {
compact_pointers_.push_back(std::make_pair(level, key));
} else {
msg = "compaction pointer";
@@ -172,8 +169,7 @@ Status VersionEdit::DecodeFrom(const Slice& src) {
break;
case kDeletedFile:
- if (GetLevel(&input, &level) &&
- GetVarint64(&input, &number)) {
+ if (GetLevel(&input, &level) && GetVarint64(&input, &number)) {
deleted_files_.insert(std::make_pair(level, number));
} else {
msg = "deleted file";
@@ -181,8 +177,7 @@ Status VersionEdit::DecodeFrom(const Slice& src) {
break;
case kNewFile:
- if (GetLevel(&input, &level) &&
- GetVarint64(&input, &f.number) &&
+ if (GetLevel(&input, &level) && GetVarint64(&input, &f.number) &&
GetVarint64(&input, &f.file_size) &&
GetInternalKey(&input, &f.smallest) &&
GetInternalKey(&input, &f.largest)) {
@@ -239,8 +234,7 @@ std::string VersionEdit::DebugString() const {
r.append(compact_pointers_[i].second.DebugString());
}
for (DeletedFileSet::const_iterator iter = deleted_files_.begin();
- iter != deleted_files_.end();
- ++iter) {
+ iter != deleted_files_.end(); ++iter) {
r.append("\n DeleteFile: ");
AppendNumberTo(&r, iter->first);
r.append(" ");
diff --git a/db/version_edit.h b/db/version_edit.h
index eaef77b..3daf4ef 100644
--- a/db/version_edit.h
+++ b/db/version_edit.h
@@ -8,6 +8,7 @@
#include <set>
#include <utility>
#include <vector>
+
#include "db/dbformat.h"
namespace leveldb {
@@ -16,19 +17,19 @@ class VersionSet;
struct FileMetaData {
int refs;
- int allowed_seeks; // Seeks allowed until compaction
+ int allowed_seeks; // Seeks allowed until compaction
uint64_t number;
- uint64_t file_size; // File size in bytes
- InternalKey smallest; // Smallest internal key served by table
- InternalKey largest; // Largest internal key served by table
+ uint64_t file_size; // File size in bytes
+ InternalKey smallest; // Smallest internal key served by table
+ InternalKey largest; // Largest internal key served by table
- FileMetaData() : refs(0), allowed_seeks(1 << 30), file_size(0) { }
+ FileMetaData() : refs(0), allowed_seeks(1 << 30), file_size(0) {}
};
class VersionEdit {
public:
VersionEdit() { Clear(); }
- ~VersionEdit() { }
+ ~VersionEdit() {}
void Clear();
@@ -59,10 +60,8 @@ class VersionEdit {
// Add the specified file at the specified number.
// REQUIRES: This version has not been saved (see VersionSet::SaveTo)
// REQUIRES: "smallest" and "largest" are smallest and largest keys in file
- void AddFile(int level, uint64_t file,
- uint64_t file_size,
- const InternalKey& smallest,
- const InternalKey& largest) {
+ void AddFile(int level, uint64_t file, uint64_t file_size,
+ const InternalKey& smallest, const InternalKey& largest) {
FileMetaData f;
f.number = file;
f.file_size = file_size;
@@ -84,7 +83,7 @@ class VersionEdit {
private:
friend class VersionSet;
- typedef std::set< std::pair<int, uint64_t> > DeletedFileSet;
+ typedef std::set<std::pair<int, uint64_t> > DeletedFileSet;
std::string comparator_;
uint64_t log_number_;
@@ -97,9 +96,9 @@ class VersionEdit {
bool has_next_file_number_;
bool has_last_sequence_;
- std::vector< std::pair<int, InternalKey> > compact_pointers_;
+ std::vector<std::pair<int, InternalKey> > compact_pointers_;
DeletedFileSet deleted_files_;
- std::vector< std::pair<int, FileMetaData> > new_files_;
+ std::vector<std::pair<int, FileMetaData> > new_files_;
};
} // namespace leveldb
diff --git a/db/version_edit_test.cc b/db/version_edit_test.cc
index 280310b..0b7cda8 100644
--- a/db/version_edit_test.cc
+++ b/db/version_edit_test.cc
@@ -17,7 +17,7 @@ static void TestEncodeDecode(const VersionEdit& edit) {
ASSERT_EQ(encoded, encoded2);
}
-class VersionEditTest { };
+class VersionEditTest {};
TEST(VersionEditTest, EncodeDecode) {
static const uint64_t kBig = 1ull << 50;
@@ -41,6 +41,4 @@ TEST(VersionEditTest, EncodeDecode) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/db/version_set.cc b/db/version_set.cc
index 56493ac..96a92cc 100644
--- a/db/version_set.cc
+++ b/db/version_set.cc
@@ -4,8 +4,10 @@
#include "db/version_set.h"
-#include <algorithm>
#include <stdio.h>
+
+#include <algorithm>
+
#include "db/filename.h"
#include "db/log_reader.h"
#include "db/log_writer.h"
@@ -84,8 +86,7 @@ Version::~Version() {
}
int FindFile(const InternalKeyComparator& icmp,
- const std::vector<FileMetaData*>& files,
- const Slice& key) {
+ const std::vector<FileMetaData*>& files, const Slice& key) {
uint32_t left = 0;
uint32_t right = files.size();
while (left < right) {
@@ -104,26 +105,25 @@ int FindFile(const InternalKeyComparator& icmp,
return right;
}
-static bool AfterFile(const Comparator* ucmp,
- const Slice* user_key, const FileMetaData* f) {
+static bool AfterFile(const Comparator* ucmp, const Slice* user_key,
+ const FileMetaData* f) {
// null user_key occurs before all keys and is therefore never after *f
return (user_key != nullptr &&
ucmp->Compare(*user_key, f->largest.user_key()) > 0);
}
-static bool BeforeFile(const Comparator* ucmp,
- const Slice* user_key, const FileMetaData* f) {
+static bool BeforeFile(const Comparator* ucmp, const Slice* user_key,
+ const FileMetaData* f) {
// null user_key occurs after all keys and is therefore never before *f
return (user_key != nullptr &&
ucmp->Compare(*user_key, f->smallest.user_key()) < 0);
}
-bool SomeFileOverlapsRange(
- const InternalKeyComparator& icmp,
- bool disjoint_sorted_files,
- const std::vector<FileMetaData*>& files,
- const Slice* smallest_user_key,
- const Slice* largest_user_key) {
+bool SomeFileOverlapsRange(const InternalKeyComparator& icmp,
+ bool disjoint_sorted_files,
+ const std::vector<FileMetaData*>& files,
+ const Slice* smallest_user_key,
+ const Slice* largest_user_key) {
const Comparator* ucmp = icmp.user_comparator();
if (!disjoint_sorted_files) {
// Need to check against all files
@@ -143,7 +143,8 @@ bool SomeFileOverlapsRange(
uint32_t index = 0;
if (smallest_user_key != nullptr) {
// Find the earliest possible internal key for smallest_user_key
- InternalKey small_key(*smallest_user_key, kMaxSequenceNumber,kValueTypeForSeek);
+ InternalKey small_key(*smallest_user_key, kMaxSequenceNumber,
+ kValueTypeForSeek);
index = FindFile(icmp, files, small_key.Encode());
}
@@ -164,13 +165,9 @@ class Version::LevelFileNumIterator : public Iterator {
public:
LevelFileNumIterator(const InternalKeyComparator& icmp,
const std::vector<FileMetaData*>* flist)
- : icmp_(icmp),
- flist_(flist),
- index_(flist->size()) { // Marks as invalid
- }
- virtual bool Valid() const {
- return index_ < flist_->size();
+ : icmp_(icmp), flist_(flist), index_(flist->size()) { // Marks as invalid
}
+ virtual bool Valid() const { return index_ < flist_->size(); }
virtual void Seek(const Slice& target) {
index_ = FindFile(icmp_, *flist_, target);
}
@@ -197,10 +194,11 @@ class Version::LevelFileNumIterator : public Iterator {
Slice value() const {
assert(Valid());
EncodeFixed64(value_buf_, (*flist_)[index_]->number);
- EncodeFixed64(value_buf_+8, (*flist_)[index_]->file_size);
+ EncodeFixed64(value_buf_ + 8, (*flist_)[index_]->file_size);
return Slice(value_buf_, sizeof(value_buf_));
}
virtual Status status() const { return Status::OK(); }
+
private:
const InternalKeyComparator icmp_;
const std::vector<FileMetaData*>* const flist_;
@@ -210,16 +208,14 @@ class Version::LevelFileNumIterator : public Iterator {
mutable char value_buf_[16];
};
-static Iterator* GetFileIterator(void* arg,
- const ReadOptions& options,
+static Iterator* GetFileIterator(void* arg, const ReadOptions& options,
const Slice& file_value) {
TableCache* cache = reinterpret_cast<TableCache*>(arg);
if (file_value.size() != 16) {
return NewErrorIterator(
Status::Corruption("FileReader invoked with unexpected value"));
} else {
- return cache->NewIterator(options,
- DecodeFixed64(file_value.data()),
+ return cache->NewIterator(options, DecodeFixed64(file_value.data()),
DecodeFixed64(file_value.data() + 8));
}
}
@@ -227,17 +223,16 @@ static Iterator* GetFileIterator(void* arg,
Iterator* Version::NewConcatenatingIterator(const ReadOptions& options,
int level) const {
return NewTwoLevelIterator(
- new LevelFileNumIterator(vset_->icmp_, &files_[level]),
- &GetFileIterator, vset_->table_cache_, options);
+ new LevelFileNumIterator(vset_->icmp_, &files_[level]), &GetFileIterator,
+ vset_->table_cache_, options);
}
void Version::AddIterators(const ReadOptions& options,
std::vector<Iterator*>* iters) {
// Merge all level zero files together since they may overlap
for (size_t i = 0; i < files_[0].size(); i++) {
- iters->push_back(
- vset_->table_cache_->NewIterator(
- options, files_[0][i]->number, files_[0][i]->file_size));
+ iters->push_back(vset_->table_cache_->NewIterator(
+ options, files_[0][i]->number, files_[0][i]->file_size));
}
// For levels > 0, we can use a concatenating iterator that sequentially
@@ -264,7 +259,7 @@ struct Saver {
Slice user_key;
std::string* value;
};
-}
+} // namespace
static void SaveValue(void* arg, const Slice& ikey, const Slice& v) {
Saver* s = reinterpret_cast<Saver*>(arg);
ParsedInternalKey parsed_key;
@@ -284,8 +279,7 @@ static bool NewestFirst(FileMetaData* a, FileMetaData* b) {
return a->number > b->number;
}
-void Version::ForEachOverlapping(Slice user_key, Slice internal_key,
- void* arg,
+void Version::ForEachOverlapping(Slice user_key, Slice internal_key, void* arg,
bool (*func)(void*, int, FileMetaData*)) {
// TODO(sanjay): Change Version::Get() to use this function.
const Comparator* ucmp = vset_->icmp_.user_comparator();
@@ -329,10 +323,8 @@ void Version::ForEachOverlapping(Slice user_key, Slice internal_key,
}
}
-Status Version::Get(const ReadOptions& options,
- const LookupKey& k,
- std::string* value,
- GetStats* stats) {
+Status Version::Get(const ReadOptions& options, const LookupKey& k,
+ std::string* value, GetStats* stats) {
Slice ikey = k.internal_key();
Slice user_key = k.user_key();
const Comparator* ucmp = vset_->icmp_.user_comparator();
@@ -405,14 +397,14 @@ Status Version::Get(const ReadOptions& options,
saver.ucmp = ucmp;
saver.user_key = user_key;
saver.value = value;
- s = vset_->table_cache_->Get(options, f->number, f->file_size,
- ikey, &saver, SaveValue);
+ s = vset_->table_cache_->Get(options, f->number, f->file_size, ikey,
+ &saver, SaveValue);
if (!s.ok()) {
return s;
}
switch (saver.state) {
case kNotFound:
- break; // Keep searching in other files
+ break; // Keep searching in other files
case kFound:
return s;
case kDeleted:
@@ -479,9 +471,7 @@ bool Version::RecordReadSample(Slice internal_key) {
return false;
}
-void Version::Ref() {
- ++refs_;
-}
+void Version::Ref() { ++refs_; }
void Version::Unref() {
assert(this != &vset_->dummy_versions_);
@@ -492,16 +482,14 @@ void Version::Unref() {
}
}
-bool Version::OverlapInLevel(int level,
- const Slice* smallest_user_key,
+bool Version::OverlapInLevel(int level, const Slice* smallest_user_key,
const Slice* largest_user_key) {
return SomeFileOverlapsRange(vset_->icmp_, (level > 0), files_[level],
smallest_user_key, largest_user_key);
}
-int Version::PickLevelForMemTableOutput(
- const Slice& smallest_user_key,
- const Slice& largest_user_key) {
+int Version::PickLevelForMemTableOutput(const Slice& smallest_user_key,
+ const Slice& largest_user_key) {
int level = 0;
if (!OverlapInLevel(0, &smallest_user_key, &largest_user_key)) {
// Push to next level if there is no overlap in next level,
@@ -528,11 +516,9 @@ int Version::PickLevelForMemTableOutput(
}
// Store in "*inputs" all files in "level" that overlap [begin,end]
-void Version::GetOverlappingInputs(
- int level,
- const InternalKey* begin,
- const InternalKey* end,
- std::vector<FileMetaData*>* inputs) {
+void Version::GetOverlappingInputs(int level, const InternalKey* begin,
+ const InternalKey* end,
+ std::vector<FileMetaData*>* inputs) {
assert(level >= 0);
assert(level < config::kNumLevels);
inputs->clear();
@@ -544,7 +530,7 @@ void Version::GetOverlappingInputs(
user_end = end->user_key();
}
const Comparator* user_cmp = vset_->icmp_.user_comparator();
- for (size_t i = 0; i < files_[level].size(); ) {
+ for (size_t i = 0; i < files_[level].size();) {
FileMetaData* f = files_[level][i++];
const Slice file_start = f->smallest.user_key();
const Slice file_limit = f->largest.user_key();
@@ -561,8 +547,8 @@ void Version::GetOverlappingInputs(
user_begin = file_start;
inputs->clear();
i = 0;
- } else if (end != nullptr && user_cmp->Compare(file_limit,
- user_end) > 0) {
+ } else if (end != nullptr &&
+ user_cmp->Compare(file_limit, user_end) > 0) {
user_end = file_limit;
inputs->clear();
i = 0;
@@ -630,9 +616,7 @@ class VersionSet::Builder {
public:
// Initialize a builder with the files from *base and other info from *vset
- Builder(VersionSet* vset, Version* base)
- : vset_(vset),
- base_(base) {
+ Builder(VersionSet* vset, Version* base) : vset_(vset), base_(base) {
base_->Ref();
BySmallestKey cmp;
cmp.internal_comparator = &vset_->icmp_;
@@ -646,8 +630,8 @@ class VersionSet::Builder {
const FileSet* added = levels_[level].added_files;
std::vector<FileMetaData*> to_unref;
to_unref.reserve(added->size());
- for (FileSet::const_iterator it = added->begin();
- it != added->end(); ++it) {
+ for (FileSet::const_iterator it = added->begin(); it != added->end();
+ ++it) {
to_unref.push_back(*it);
}
delete added;
@@ -674,8 +658,7 @@ class VersionSet::Builder {
// Delete files
const VersionEdit::DeletedFileSet& del = edit->deleted_files_;
for (VersionEdit::DeletedFileSet::const_iterator iter = del.begin();
- iter != del.end();
- ++iter) {
+ iter != del.end(); ++iter) {
const int level = iter->first;
const uint64_t number = iter->second;
levels_[level].deleted_files.insert(number);
@@ -721,13 +704,11 @@ class VersionSet::Builder {
const FileSet* added = levels_[level].added_files;
v->files_[level].reserve(base_files.size() + added->size());
for (FileSet::const_iterator added_iter = added->begin();
- added_iter != added->end();
- ++added_iter) {
+ added_iter != added->end(); ++added_iter) {
// Add all smaller files listed in base_
- for (std::vector<FileMetaData*>::const_iterator bpos
- = std::upper_bound(base_iter, base_end, *added_iter, cmp);
- base_iter != bpos;
- ++base_iter) {
+ for (std::vector<FileMetaData*>::const_iterator bpos =
+ std::upper_bound(base_iter, base_end, *added_iter, cmp);
+ base_iter != bpos; ++base_iter) {
MaybeAddFile(v, level, *base_iter);
}
@@ -743,7 +724,7 @@ class VersionSet::Builder {
// Make sure there is no overlap in levels > 0
if (level > 0) {
for (uint32_t i = 1; i < v->files_[level].size(); i++) {
- const InternalKey& prev_end = v->files_[level][i-1]->largest;
+ const InternalKey& prev_end = v->files_[level][i - 1]->largest;
const InternalKey& this_begin = v->files_[level][i]->smallest;
if (vset_->icmp_.Compare(prev_end, this_begin) >= 0) {
fprintf(stderr, "overlapping ranges in same level %s vs. %s\n",
@@ -764,7 +745,7 @@ class VersionSet::Builder {
std::vector<FileMetaData*>* files = &v->files_[level];
if (level > 0 && !files->empty()) {
// Must not overlap
- assert(vset_->icmp_.Compare((*files)[files->size()-1]->largest,
+ assert(vset_->icmp_.Compare((*files)[files->size() - 1]->largest,
f->smallest) < 0);
}
f->refs++;
@@ -773,8 +754,7 @@ class VersionSet::Builder {
}
};
-VersionSet::VersionSet(const std::string& dbname,
- const Options* options,
+VersionSet::VersionSet(const std::string& dbname, const Options* options,
TableCache* table_cache,
const InternalKeyComparator* cmp)
: env_(options->env),
@@ -903,7 +883,7 @@ Status VersionSet::LogAndApply(VersionEdit* edit, port::Mutex* mu) {
return s;
}
-Status VersionSet::Recover(bool *save_manifest) {
+Status VersionSet::Recover(bool* save_manifest) {
struct LogReporter : public log::Reader::Reporter {
Status* status;
virtual void Corruption(size_t bytes, const Status& s) {
@@ -917,7 +897,7 @@ Status VersionSet::Recover(bool *save_manifest) {
if (!s.ok()) {
return s;
}
- if (current.empty() || current[current.size()-1] != '\n') {
+ if (current.empty() || current[current.size() - 1] != '\n') {
return Status::Corruption("CURRENT file does not end with newline");
}
current.resize(current.size() - 1);
@@ -927,8 +907,8 @@ Status VersionSet::Recover(bool *save_manifest) {
s = env_->NewSequentialFile(dscname, &file);
if (!s.ok()) {
if (s.IsNotFound()) {
- return Status::Corruption(
- "CURRENT points to a non-existent file", s.ToString());
+ return Status::Corruption("CURRENT points to a non-existent file",
+ s.ToString());
}
return s;
}
@@ -946,7 +926,8 @@ Status VersionSet::Recover(bool *save_manifest) {
{
LogReporter reporter;
reporter.status = &s;
- log::Reader reader(file, &reporter, true/*checksum*/, 0/*initial_offset*/);
+ log::Reader reader(file, &reporter, true /*checksum*/,
+ 0 /*initial_offset*/);
Slice record;
std::string scratch;
while (reader.ReadRecord(&record, &scratch) && s.ok()) {
@@ -1071,7 +1052,7 @@ void VersionSet::Finalize(Version* v) {
int best_level = -1;
double best_score = -1;
- for (int level = 0; level < config::kNumLevels-1; level++) {
+ for (int level = 0; level < config::kNumLevels - 1; level++) {
double score;
if (level == 0) {
// We treat level-0 specially by bounding the number of files
@@ -1086,7 +1067,7 @@ void VersionSet::Finalize(Version* v) {
// setting, or very high compression ratios, or lots of
// overwrites/deletions).
score = v->files_[level].size() /
- static_cast<double>(config::kL0_CompactionTrigger);
+ static_cast<double>(config::kL0_CompactionTrigger);
} else {
// Compute the ratio of current size to size limit.
const uint64_t level_bytes = TotalFileSize(v->files_[level]);
@@ -1142,16 +1123,12 @@ int VersionSet::NumLevelFiles(int level) const {
const char* VersionSet::LevelSummary(LevelSummaryStorage* scratch) const {
// Update code if kNumLevels changes
- assert(config::kNumLevels == 7);
+ static_assert(config::kNumLevels == 7, "");
snprintf(scratch->buffer, sizeof(scratch->buffer),
- "files[ %d %d %d %d %d %d %d ]",
- int(current_->files_[0].size()),
- int(current_->files_[1].size()),
- int(current_->files_[2].size()),
- int(current_->files_[3].size()),
- int(current_->files_[4].size()),
- int(current_->files_[5].size()),
- int(current_->files_[6].size()));
+ "files[ %d %d %d %d %d %d %d ]", int(current_->files_[0].size()),
+ int(current_->files_[1].size()), int(current_->files_[2].size()),
+ int(current_->files_[3].size()), int(current_->files_[4].size()),
+ int(current_->files_[5].size()), int(current_->files_[6].size()));
return scratch->buffer;
}
@@ -1188,8 +1165,7 @@ uint64_t VersionSet::ApproximateOffsetOf(Version* v, const InternalKey& ikey) {
}
void VersionSet::AddLiveFiles(std::set<uint64_t>* live) {
- for (Version* v = dummy_versions_.next_;
- v != &dummy_versions_;
+ for (Version* v = dummy_versions_.next_; v != &dummy_versions_;
v = v->next_) {
for (int level = 0; level < config::kNumLevels; level++) {
const std::vector<FileMetaData*>& files = v->files_[level];
@@ -1212,7 +1188,7 @@ int64_t VersionSet::MaxNextLevelOverlappingBytes() {
for (int level = 1; level < config::kNumLevels - 1; level++) {
for (size_t i = 0; i < current_->files_[level].size(); i++) {
const FileMetaData* f = current_->files_[level][i];
- current_->GetOverlappingInputs(level+1, &f->smallest, &f->largest,
+ current_->GetOverlappingInputs(level + 1, &f->smallest, &f->largest,
&overlaps);
const int64_t sum = TotalFileSize(overlaps);
if (sum > result) {
@@ -1227,8 +1203,7 @@ int64_t VersionSet::MaxNextLevelOverlappingBytes() {
// *smallest, *largest.
// REQUIRES: inputs is not empty
void VersionSet::GetRange(const std::vector<FileMetaData*>& inputs,
- InternalKey* smallest,
- InternalKey* largest) {
+ InternalKey* smallest, InternalKey* largest) {
assert(!inputs.empty());
smallest->Clear();
largest->Clear();
@@ -1253,8 +1228,7 @@ void VersionSet::GetRange(const std::vector<FileMetaData*>& inputs,
// REQUIRES: inputs is not empty
void VersionSet::GetRange2(const std::vector<FileMetaData*>& inputs1,
const std::vector<FileMetaData*>& inputs2,
- InternalKey* smallest,
- InternalKey* largest) {
+ InternalKey* smallest, InternalKey* largest) {
std::vector<FileMetaData*> all = inputs1;
all.insert(all.end(), inputs2.begin(), inputs2.end());
GetRange(all, smallest, largest);
@@ -1276,8 +1250,8 @@ Iterator* VersionSet::MakeInputIterator(Compaction* c) {
if (c->level() + which == 0) {
const std::vector<FileMetaData*>& files = c->inputs_[which];
for (size_t i = 0; i < files.size(); i++) {
- list[num++] = table_cache_->NewIterator(
- options, files[i]->number, files[i]->file_size);
+ list[num++] = table_cache_->NewIterator(options, files[i]->number,
+ files[i]->file_size);
}
} else {
// Create concatenating iterator for the files from this level
@@ -1304,7 +1278,7 @@ Compaction* VersionSet::PickCompaction() {
if (size_compaction) {
level = current_->compaction_level_;
assert(level >= 0);
- assert(level+1 < config::kNumLevels);
+ assert(level + 1 < config::kNumLevels);
c = new Compaction(options_, level);
// Pick the first file that comes after compact_pointer_[level]
@@ -1433,7 +1407,8 @@ void VersionSet::SetupOtherInputs(Compaction* c) {
AddBoundaryInputs(icmp_, current_->files_[level], &c->inputs_[0]);
GetRange(c->inputs_[0], &smallest, &largest);
- current_->GetOverlappingInputs(level+1, &smallest, &largest, &c->inputs_[1]);
+ current_->GetOverlappingInputs(level + 1, &smallest, &largest,
+ &c->inputs_[1]);
// Get entire range covered by compaction
InternalKey all_start, all_limit;
@@ -1454,18 +1429,14 @@ void VersionSet::SetupOtherInputs(Compaction* c) {
InternalKey new_start, new_limit;
GetRange(expanded0, &new_start, &new_limit);
std::vector<FileMetaData*> expanded1;
- current_->GetOverlappingInputs(level+1, &new_start, &new_limit,
+ current_->GetOverlappingInputs(level + 1, &new_start, &new_limit,
&expanded1);
if (expanded1.size() == c->inputs_[1].size()) {
Log(options_->info_log,
"Expanding@%d %d+%d (%ld+%ld bytes) to %d+%d (%ld+%ld bytes)\n",
- level,
- int(c->inputs_[0].size()),
- int(c->inputs_[1].size()),
- long(inputs0_size), long(inputs1_size),
- int(expanded0.size()),
- int(expanded1.size()),
- long(expanded0_size), long(inputs1_size));
+ level, int(c->inputs_[0].size()), int(c->inputs_[1].size()),
+ long(inputs0_size), long(inputs1_size), int(expanded0.size()),
+ int(expanded1.size()), long(expanded0_size), long(inputs1_size));
smallest = new_start;
largest = new_limit;
c->inputs_[0] = expanded0;
@@ -1490,10 +1461,8 @@ void VersionSet::SetupOtherInputs(Compaction* c) {
c->edit_.SetCompactPointer(level, largest);
}
-Compaction* VersionSet::CompactRange(
- int level,
- const InternalKey* begin,
- const InternalKey* end) {
+Compaction* VersionSet::CompactRange(int level, const InternalKey* begin,
+ const InternalKey* end) {
std::vector<FileMetaData*> inputs;
current_->GetOverlappingInputs(level, begin, end, &inputs);
if (inputs.empty()) {
@@ -1566,7 +1535,7 @@ bool Compaction::IsBaseLevelForKey(const Slice& user_key) {
const Comparator* user_cmp = input_version_->vset_->icmp_.user_comparator();
for (int lvl = level_ + 2; lvl < config::kNumLevels; lvl++) {
const std::vector<FileMetaData*>& files = input_version_->files_[lvl];
- for (; level_ptrs_[lvl] < files.size(); ) {
+ for (; level_ptrs_[lvl] < files.size();) {
FileMetaData* f = files[level_ptrs_[lvl]];
if (user_cmp->Compare(user_key, f->largest.user_key()) <= 0) {
// We've advanced far enough
@@ -1587,8 +1556,9 @@ bool Compaction::ShouldStopBefore(const Slice& internal_key) {
// Scan to find earliest grandparent file that contains key.
const InternalKeyComparator* icmp = &vset->icmp_;
while (grandparent_index_ < grandparents_.size() &&
- icmp->Compare(internal_key,
- grandparents_[grandparent_index_]->largest.Encode()) > 0) {
+ icmp->Compare(internal_key,
+ grandparents_[grandparent_index_]->largest.Encode()) >
+ 0) {
if (seen_key_) {
overlapped_bytes_ += grandparents_[grandparent_index_]->file_size;
}
diff --git a/db/version_set.h b/db/version_set.h
index 0beae4d..334ebd9 100644
--- a/db/version_set.h
+++ b/db/version_set.h
@@ -18,6 +18,7 @@
#include <map>
#include <set>
#include <vector>
+
#include "db/dbformat.h"
#include "db/version_edit.h"
#include "port/port.h"
@@ -25,7 +26,9 @@
namespace leveldb {
-namespace log { class Writer; }
+namespace log {
+class Writer;
+}
class Compaction;
class Iterator;
@@ -40,8 +43,7 @@ class WritableFile;
// Return files.size() if there is no such file.
// REQUIRES: "files" contains a sorted list of non-overlapping files.
int FindFile(const InternalKeyComparator& icmp,
- const std::vector<FileMetaData*>& files,
- const Slice& key);
+ const std::vector<FileMetaData*>& files, const Slice& key);
// Returns true iff some file in "files" overlaps the user key range
// [*smallest,*largest].
@@ -90,16 +92,15 @@ class Version {
void GetOverlappingInputs(
int level,
- const InternalKey* begin, // nullptr means before all keys
- const InternalKey* end, // nullptr means after all keys
+ const InternalKey* begin, // nullptr means before all keys
+ const InternalKey* end, // nullptr means after all keys
std::vector<FileMetaData*>* inputs);
// Returns true iff some file in the specified level overlaps
// some part of [*smallest_user_key,*largest_user_key].
// smallest_user_key==nullptr represents a key smaller than all the DB's keys.
// largest_user_key==nullptr represents a key largest than all the DB's keys.
- bool OverlapInLevel(int level,
- const Slice* smallest_user_key,
+ bool OverlapInLevel(int level, const Slice* smallest_user_key,
const Slice* largest_user_key);
// Return the level at which we should place a new memtable compaction
@@ -124,14 +125,13 @@ class Version {
// false, makes no more calls.
//
// REQUIRES: user portion of internal_key == user_key.
- void ForEachOverlapping(Slice user_key, Slice internal_key,
- void* arg,
+ void ForEachOverlapping(Slice user_key, Slice internal_key, void* arg,
bool (*func)(void*, int, FileMetaData*));
- VersionSet* vset_; // VersionSet to which this Version belongs
- Version* next_; // Next version in linked list
- Version* prev_; // Previous version in linked list
- int refs_; // Number of live refs to this version
+ VersionSet* vset_; // VersionSet to which this Version belongs
+ Version* next_; // Next version in linked list
+ Version* prev_; // Previous version in linked list
+ int refs_; // Number of live refs to this version
// List of files per level
std::vector<FileMetaData*> files_[config::kNumLevels];
@@ -147,12 +147,14 @@ class Version {
int compaction_level_;
explicit Version(VersionSet* vset)
- : vset_(vset), next_(this), prev_(this), refs_(0),
+ : vset_(vset),
+ next_(this),
+ prev_(this),
+ refs_(0),
file_to_compact_(nullptr),
file_to_compact_level_(-1),
compaction_score_(-1),
- compaction_level_(-1) {
- }
+ compaction_level_(-1) {}
~Version();
@@ -163,10 +165,8 @@ class Version {
class VersionSet {
public:
- VersionSet(const std::string& dbname,
- const Options* options,
- TableCache* table_cache,
- const InternalKeyComparator*);
+ VersionSet(const std::string& dbname, const Options* options,
+ TableCache* table_cache, const InternalKeyComparator*);
~VersionSet();
// Apply *edit to the current version to form a new descriptor that
@@ -178,7 +178,7 @@ class VersionSet {
EXCLUSIVE_LOCKS_REQUIRED(mu);
// Recover the last saved descriptor from persistent storage.
- Status Recover(bool *save_manifest);
+ Status Recover(bool* save_manifest);
// Return the current version.
Version* current() const { return current_; }
@@ -233,10 +233,8 @@ class VersionSet {
// the specified level. Returns nullptr if there is nothing in that
// level that overlaps the specified range. Caller should delete
// the result.
- Compaction* CompactRange(
- int level,
- const InternalKey* begin,
- const InternalKey* end);
+ Compaction* CompactRange(int level, const InternalKey* begin,
+ const InternalKey* end);
// Return the maximum overlapping data (in bytes) at next level for any
// file at a level >= 1.
@@ -277,14 +275,12 @@ class VersionSet {
void Finalize(Version* v);
- void GetRange(const std::vector<FileMetaData*>& inputs,
- InternalKey* smallest,
+ void GetRange(const std::vector<FileMetaData*>& inputs, InternalKey* smallest,
InternalKey* largest);
void GetRange2(const std::vector<FileMetaData*>& inputs1,
const std::vector<FileMetaData*>& inputs2,
- InternalKey* smallest,
- InternalKey* largest);
+ InternalKey* smallest, InternalKey* largest);
void SetupOtherInputs(Compaction* c);
@@ -373,7 +369,7 @@ class Compaction {
VersionEdit edit_;
// Each compaction reads inputs from "level_" and "level_+1"
- std::vector<FileMetaData*> inputs_[2]; // The two sets of inputs
+ std::vector<FileMetaData*> inputs_[2]; // The two sets of inputs
// State used to check for number of overlapping grandparent files
// (parent == level_ + 1, grandparent == level_ + 2)
diff --git a/db/version_set_test.cc b/db/version_set_test.cc
index b32e2e5..43b51d8 100644
--- a/db/version_set_test.cc
+++ b/db/version_set_test.cc
@@ -14,7 +14,7 @@ class FindFileTest {
std::vector<FileMetaData*> files_;
bool disjoint_sorted_files_;
- FindFileTest() : disjoint_sorted_files_(true) { }
+ FindFileTest() : disjoint_sorted_files_(true) {}
~FindFileTest() {
for (int i = 0; i < files_.size(); i++) {
@@ -50,10 +50,10 @@ class FindFileTest {
TEST(FindFileTest, Empty) {
ASSERT_EQ(0, Find("foo"));
- ASSERT_TRUE(! Overlaps("a", "z"));
- ASSERT_TRUE(! Overlaps(nullptr, "z"));
- ASSERT_TRUE(! Overlaps("a", nullptr));
- ASSERT_TRUE(! Overlaps(nullptr, nullptr));
+ ASSERT_TRUE(!Overlaps("a", "z"));
+ ASSERT_TRUE(!Overlaps(nullptr, "z"));
+ ASSERT_TRUE(!Overlaps("a", nullptr));
+ ASSERT_TRUE(!Overlaps(nullptr, nullptr));
}
TEST(FindFileTest, Single) {
@@ -65,8 +65,8 @@ TEST(FindFileTest, Single) {
ASSERT_EQ(1, Find("q1"));
ASSERT_EQ(1, Find("z"));
- ASSERT_TRUE(! Overlaps("a", "b"));
- ASSERT_TRUE(! Overlaps("z1", "z2"));
+ ASSERT_TRUE(!Overlaps("a", "b"));
+ ASSERT_TRUE(!Overlaps("z1", "z2"));
ASSERT_TRUE(Overlaps("a", "p"));
ASSERT_TRUE(Overlaps("a", "q"));
ASSERT_TRUE(Overlaps("a", "z"));
@@ -78,15 +78,14 @@ TEST(FindFileTest, Single) {
ASSERT_TRUE(Overlaps("q", "q"));
ASSERT_TRUE(Overlaps("q", "q1"));
- ASSERT_TRUE(! Overlaps(nullptr, "j"));
- ASSERT_TRUE(! Overlaps("r", nullptr));
+ ASSERT_TRUE(!Overlaps(nullptr, "j"));
+ ASSERT_TRUE(!Overlaps("r", nullptr));
ASSERT_TRUE(Overlaps(nullptr, "p"));
ASSERT_TRUE(Overlaps(nullptr, "p1"));
ASSERT_TRUE(Overlaps("q", nullptr));
ASSERT_TRUE(Overlaps(nullptr, nullptr));
}
-
TEST(FindFileTest, Multiple) {
Add("150", "200");
Add("200", "250");
@@ -110,10 +109,10 @@ TEST(FindFileTest, Multiple) {
ASSERT_EQ(3, Find("450"));
ASSERT_EQ(4, Find("451"));
- ASSERT_TRUE(! Overlaps("100", "149"));
- ASSERT_TRUE(! Overlaps("251", "299"));
- ASSERT_TRUE(! Overlaps("451", "500"));
- ASSERT_TRUE(! Overlaps("351", "399"));
+ ASSERT_TRUE(!Overlaps("100", "149"));
+ ASSERT_TRUE(!Overlaps("251", "299"));
+ ASSERT_TRUE(!Overlaps("451", "500"));
+ ASSERT_TRUE(!Overlaps("351", "399"));
ASSERT_TRUE(Overlaps("100", "150"));
ASSERT_TRUE(Overlaps("100", "200"));
@@ -130,8 +129,8 @@ TEST(FindFileTest, MultipleNullBoundaries) {
Add("200", "250");
Add("300", "350");
Add("400", "450");
- ASSERT_TRUE(! Overlaps(nullptr, "149"));
- ASSERT_TRUE(! Overlaps("451", nullptr));
+ ASSERT_TRUE(!Overlaps(nullptr, "149"));
+ ASSERT_TRUE(!Overlaps("451", nullptr));
ASSERT_TRUE(Overlaps(nullptr, nullptr));
ASSERT_TRUE(Overlaps(nullptr, "150"));
ASSERT_TRUE(Overlaps(nullptr, "199"));
@@ -147,8 +146,8 @@ TEST(FindFileTest, MultipleNullBoundaries) {
TEST(FindFileTest, OverlapSequenceChecks) {
Add("200", "200", 5000, 3000);
- ASSERT_TRUE(! Overlaps("199", "199"));
- ASSERT_TRUE(! Overlaps("201", "300"));
+ ASSERT_TRUE(!Overlaps("199", "199"));
+ ASSERT_TRUE(!Overlaps("201", "300"));
ASSERT_TRUE(Overlaps("200", "200"));
ASSERT_TRUE(Overlaps("190", "200"));
ASSERT_TRUE(Overlaps("200", "210"));
@@ -158,8 +157,8 @@ TEST(FindFileTest, OverlappingFiles) {
Add("150", "600");
Add("400", "500");
disjoint_sorted_files_ = false;
- ASSERT_TRUE(! Overlaps("100", "149"));
- ASSERT_TRUE(! Overlaps("601", "700"));
+ ASSERT_TRUE(!Overlaps("100", "149"));
+ ASSERT_TRUE(!Overlaps("601", "700"));
ASSERT_TRUE(Overlaps("100", "150"));
ASSERT_TRUE(Overlaps("100", "200"));
ASSERT_TRUE(Overlaps("100", "300"));
diff --git a/db/write_batch.cc b/db/write_batch.cc
index 23eb00f..2dec642 100644
--- a/db/write_batch.cc
+++ b/db/write_batch.cc
@@ -15,10 +15,10 @@
#include "leveldb/write_batch.h"
-#include "leveldb/db.h"
#include "db/dbformat.h"
#include "db/memtable.h"
#include "db/write_batch_internal.h"
+#include "leveldb/db.h"
#include "util/coding.h"
namespace leveldb {
@@ -26,22 +26,18 @@ namespace leveldb {
// WriteBatch header has an 8-byte sequence number followed by a 4-byte count.
static const size_t kHeader = 12;
-WriteBatch::WriteBatch() {
- Clear();
-}
+WriteBatch::WriteBatch() { Clear(); }
-WriteBatch::~WriteBatch() { }
+WriteBatch::~WriteBatch() {}
-WriteBatch::Handler::~Handler() { }
+WriteBatch::Handler::~Handler() {}
void WriteBatch::Clear() {
rep_.clear();
rep_.resize(kHeader);
}
-size_t WriteBatch::ApproximateSize() const {
- return rep_.size();
-}
+size_t WriteBatch::ApproximateSize() const { return rep_.size(); }
Status WriteBatch::Iterate(Handler* handler) const {
Slice input(rep_);
@@ -112,7 +108,7 @@ void WriteBatch::Delete(const Slice& key) {
PutLengthPrefixedSlice(&rep_, key);
}
-void WriteBatch::Append(const WriteBatch &source) {
+void WriteBatch::Append(const WriteBatch& source) {
WriteBatchInternal::Append(this, &source);
}
@@ -133,8 +129,7 @@ class MemTableInserter : public WriteBatch::Handler {
};
} // namespace
-Status WriteBatchInternal::InsertInto(const WriteBatch* b,
- MemTable* memtable) {
+Status WriteBatchInternal::InsertInto(const WriteBatch* b, MemTable* memtable) {
MemTableInserter inserter;
inserter.sequence_ = WriteBatchInternal::Sequence(b);
inserter.mem_ = memtable;
diff --git a/db/write_batch_internal.h b/db/write_batch_internal.h
index 9448ef7..fce86e3 100644
--- a/db/write_batch_internal.h
+++ b/db/write_batch_internal.h
@@ -29,13 +29,9 @@ class WriteBatchInternal {
// this batch.
static void SetSequence(WriteBatch* batch, SequenceNumber seq);
- static Slice Contents(const WriteBatch* batch) {
- return Slice(batch->rep_);
- }
+ static Slice Contents(const WriteBatch* batch) { return Slice(batch->rep_); }
- static size_t ByteSize(const WriteBatch* batch) {
- return batch->rep_.size();
- }
+ static size_t ByteSize(const WriteBatch* batch) { return batch->rep_.size(); }
static void SetContents(WriteBatch* batch, const Slice& contents);
@@ -46,5 +42,4 @@ class WriteBatchInternal {
} // namespace leveldb
-
#endif // STORAGE_LEVELDB_DB_WRITE_BATCH_INTERNAL_H_
diff --git a/db/write_batch_test.cc b/db/write_batch_test.cc
index 49c178d..c32317f 100644
--- a/db/write_batch_test.cc
+++ b/db/write_batch_test.cc
@@ -52,7 +52,7 @@ static std::string PrintContents(WriteBatch* b) {
return state;
}
-class WriteBatchTest { };
+class WriteBatchTest {};
TEST(WriteBatchTest, Empty) {
WriteBatch batch;
@@ -68,10 +68,11 @@ TEST(WriteBatchTest, Multiple) {
WriteBatchInternal::SetSequence(&batch, 100);
ASSERT_EQ(100, WriteBatchInternal::Sequence(&batch));
ASSERT_EQ(3, WriteBatchInternal::Count(&batch));
- ASSERT_EQ("Put(baz, boo)@102"
- "Delete(box)@101"
- "Put(foo, bar)@100",
- PrintContents(&batch));
+ ASSERT_EQ(
+ "Put(baz, boo)@102"
+ "Delete(box)@101"
+ "Put(foo, bar)@100",
+ PrintContents(&batch));
}
TEST(WriteBatchTest, Corruption) {
@@ -81,10 +82,11 @@ TEST(WriteBatchTest, Corruption) {
WriteBatchInternal::SetSequence(&batch, 200);
Slice contents = WriteBatchInternal::Contents(&batch);
WriteBatchInternal::SetContents(&batch,
- Slice(contents.data(),contents.size()-1));
- ASSERT_EQ("Put(foo, bar)@200"
- "ParseError()",
- PrintContents(&batch));
+ Slice(contents.data(), contents.size() - 1));
+ ASSERT_EQ(
+ "Put(foo, bar)@200"
+ "ParseError()",
+ PrintContents(&batch));
}
TEST(WriteBatchTest, Append) {
@@ -92,25 +94,25 @@ TEST(WriteBatchTest, Append) {
WriteBatchInternal::SetSequence(&b1, 200);
WriteBatchInternal::SetSequence(&b2, 300);
b1.Append(b2);
- ASSERT_EQ("",
- PrintContents(&b1));
+ ASSERT_EQ("", PrintContents(&b1));
b2.Put("a", "va");
b1.Append(b2);
- ASSERT_EQ("Put(a, va)@200",
- PrintContents(&b1));
+ ASSERT_EQ("Put(a, va)@200", PrintContents(&b1));
b2.Clear();
b2.Put("b", "vb");
b1.Append(b2);
- ASSERT_EQ("Put(a, va)@200"
- "Put(b, vb)@201",
- PrintContents(&b1));
+ ASSERT_EQ(
+ "Put(a, va)@200"
+ "Put(b, vb)@201",
+ PrintContents(&b1));
b2.Delete("foo");
b1.Append(b2);
- ASSERT_EQ("Put(a, va)@200"
- "Put(b, vb)@202"
- "Put(b, vb)@201"
- "Delete(foo)@203",
- PrintContents(&b1));
+ ASSERT_EQ(
+ "Put(a, va)@200"
+ "Put(b, vb)@202"
+ "Put(b, vb)@201"
+ "Delete(foo)@203",
+ PrintContents(&b1));
}
TEST(WriteBatchTest, ApproximateSize) {
@@ -132,6 +134,4 @@ TEST(WriteBatchTest, ApproximateSize) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/doc/bench/db_bench_sqlite3.cc b/doc/bench/db_bench_sqlite3.cc
index 7e05de2..f183f4f 100644
--- a/doc/bench/db_bench_sqlite3.cc
+++ b/doc/bench/db_bench_sqlite3.cc
@@ -2,9 +2,10 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
+#include <sqlite3.h>
#include <stdio.h>
#include <stdlib.h>
-#include <sqlite3.h>
+
#include "util/histogram.h"
#include "util/random.h"
#include "util/testutil.h"
@@ -38,8 +39,7 @@ static const char* FLAGS_benchmarks =
"fillrand100K,"
"fillseq100K,"
"readseq,"
- "readrand100K,"
- ;
+ "readrand100K,";
// Number of key/values to place in database
static int FLAGS_num = 1000000;
@@ -78,8 +78,7 @@ static bool FLAGS_WAL_enabled = true;
// Use the db with the following name.
static const char* FLAGS_db = nullptr;
-inline
-static void ExecErrorCheck(int status, char *err_msg) {
+inline static void ExecErrorCheck(int status, char* err_msg) {
if (status != SQLITE_OK) {
fprintf(stderr, "SQL error: %s\n", err_msg);
sqlite3_free(err_msg);
@@ -87,24 +86,21 @@ static void ExecErrorCheck(int status, char *err_msg) {
}
}
-inline
-static void StepErrorCheck(int status) {
+inline static void StepErrorCheck(int status) {
if (status != SQLITE_DONE) {
fprintf(stderr, "SQL step error: status = %d\n", status);
exit(1);
}
}
-inline
-static void ErrorCheck(int status) {
+inline static void ErrorCheck(int status) {
if (status != SQLITE_OK) {
fprintf(stderr, "sqlite3 error: status = %d\n", status);
exit(1);
}
}
-inline
-static void WalCheckpoint(sqlite3* db_) {
+inline static void WalCheckpoint(sqlite3* db_) {
// Flush all writes to disk
if (FLAGS_WAL_enabled) {
sqlite3_wal_checkpoint_v2(db_, nullptr, SQLITE_CHECKPOINT_FULL, nullptr,
@@ -153,7 +149,7 @@ static Slice TrimSpace(Slice s) {
start++;
}
int limit = s.size();
- while (limit > start && isspace(s[limit-1])) {
+ while (limit > start && isspace(s[limit - 1])) {
limit--;
}
return Slice(s.data() + start, limit - start);
@@ -177,7 +173,7 @@ class Benchmark {
// State kept for progress messages
int done_;
- int next_report_; // When to report next
+ int next_report_; // When to report next
void PrintHeader() {
const int kKeySize = 16;
@@ -186,17 +182,17 @@ class Benchmark {
fprintf(stdout, "Values: %d bytes each\n", FLAGS_value_size);
fprintf(stdout, "Entries: %d\n", num_);
fprintf(stdout, "RawSize: %.1f MB (estimated)\n",
- ((static_cast<int64_t>(kKeySize + FLAGS_value_size) * num_)
- / 1048576.0));
+ ((static_cast<int64_t>(kKeySize + FLAGS_value_size) * num_) /
+ 1048576.0));
PrintWarnings();
fprintf(stdout, "------------------------------------------------\n");
}
void PrintWarnings() {
#if defined(__GNUC__) && !defined(__OPTIMIZE__)
- fprintf(stdout,
- "WARNING: Optimization is disabled: benchmarks unnecessarily slow\n"
- );
+ fprintf(
+ stdout,
+ "WARNING: Optimization is disabled: benchmarks unnecessarily slow\n");
#endif
#ifndef NDEBUG
fprintf(stdout,
@@ -262,13 +258,20 @@ class Benchmark {
done_++;
if (done_ >= next_report_) {
- if (next_report_ < 1000) next_report_ += 100;
- else if (next_report_ < 5000) next_report_ += 500;
- else if (next_report_ < 10000) next_report_ += 1000;
- else if (next_report_ < 50000) next_report_ += 5000;
- else if (next_report_ < 100000) next_report_ += 10000;
- else if (next_report_ < 500000) next_report_ += 50000;
- else next_report_ += 100000;
+ if (next_report_ < 1000)
+ next_report_ += 100;
+ else if (next_report_ < 5000)
+ next_report_ += 500;
+ else if (next_report_ < 10000)
+ next_report_ += 1000;
+ else if (next_report_ < 50000)
+ next_report_ += 5000;
+ else if (next_report_ < 100000)
+ next_report_ += 10000;
+ else if (next_report_ < 500000)
+ next_report_ += 50000;
+ else
+ next_report_ += 100000;
fprintf(stderr, "... finished %d ops%30s\r", done_, "");
fflush(stderr);
}
@@ -286,16 +289,14 @@ class Benchmark {
snprintf(rate, sizeof(rate), "%6.1f MB/s",
(bytes_ / 1048576.0) / (finish - start_));
if (!message_.empty()) {
- message_ = std::string(rate) + " " + message_;
+ message_ = std::string(rate) + " " + message_;
} else {
message_ = rate;
}
}
- fprintf(stdout, "%-12s : %11.3f micros/op;%s%s\n",
- name.ToString().c_str(),
- (finish - start_) * 1e6 / done_,
- (message_.empty() ? "" : " "),
+ fprintf(stdout, "%-12s : %11.3f micros/op;%s%s\n", name.ToString().c_str(),
+ (finish - start_) * 1e6 / done_, (message_.empty() ? "" : " "),
message_.c_str());
if (FLAGS_histogram) {
fprintf(stdout, "Microseconds per op:\n%s\n", hist_.ToString().c_str());
@@ -304,22 +305,16 @@ class Benchmark {
}
public:
- enum Order {
- SEQUENTIAL,
- RANDOM
- };
- enum DBState {
- FRESH,
- EXISTING
- };
+ enum Order { SEQUENTIAL, RANDOM };
+ enum DBState { FRESH, EXISTING };
Benchmark()
- : db_(nullptr),
- db_num_(0),
- num_(FLAGS_num),
- reads_(FLAGS_reads < 0 ? FLAGS_num : FLAGS_reads),
- bytes_(0),
- rand_(301) {
+ : db_(nullptr),
+ db_num_(0),
+ num_(FLAGS_num),
+ reads_(FLAGS_reads < 0 ? FLAGS_num : FLAGS_reads),
+ bytes_(0),
+ rand_(301) {
std::vector<std::string> files;
std::string test_dir;
Env::Default()->GetTestDirectory(&test_dir);
@@ -426,10 +421,8 @@ class Benchmark {
// Open database
std::string tmp_dir;
Env::Default()->GetTestDirectory(&tmp_dir);
- snprintf(file_name, sizeof(file_name),
- "%s/dbbench_sqlite3-%d.db",
- tmp_dir.c_str(),
- db_num_);
+ snprintf(file_name, sizeof(file_name), "%s/dbbench_sqlite3-%d.db",
+ tmp_dir.c_str(), db_num_);
status = sqlite3_open(file_name, &db_);
if (status) {
fprintf(stderr, "open error: %s\n", sqlite3_errmsg(db_));
@@ -460,26 +453,26 @@ class Benchmark {
std::string WAL_checkpoint = "PRAGMA wal_autocheckpoint = 4096";
status = sqlite3_exec(db_, WAL_stmt.c_str(), nullptr, nullptr, &err_msg);
ExecErrorCheck(status, err_msg);
- status = sqlite3_exec(db_, WAL_checkpoint.c_str(), nullptr, nullptr,
- &err_msg);
+ status =
+ sqlite3_exec(db_, WAL_checkpoint.c_str(), nullptr, nullptr, &err_msg);
ExecErrorCheck(status, err_msg);
}
// Change locking mode to exclusive and create tables/index for database
std::string locking_stmt = "PRAGMA locking_mode = EXCLUSIVE";
std::string create_stmt =
- "CREATE TABLE test (key blob, value blob, PRIMARY KEY(key))";
- std::string stmt_array[] = { locking_stmt, create_stmt };
+ "CREATE TABLE test (key blob, value blob, PRIMARY KEY(key))";
+ std::string stmt_array[] = {locking_stmt, create_stmt};
int stmt_array_length = sizeof(stmt_array) / sizeof(std::string);
for (int i = 0; i < stmt_array_length; i++) {
- status = sqlite3_exec(db_, stmt_array[i].c_str(), nullptr, nullptr,
- &err_msg);
+ status =
+ sqlite3_exec(db_, stmt_array[i].c_str(), nullptr, nullptr, &err_msg);
ExecErrorCheck(status, err_msg);
}
}
- void Write(bool write_sync, Order order, DBState state,
- int num_entries, int value_size, int entries_per_batch) {
+ void Write(bool write_sync, Order order, DBState state, int num_entries,
+ int value_size, int entries_per_batch) {
// Create new database if state == FRESH
if (state == FRESH) {
if (FLAGS_use_existing_db) {
@@ -507,20 +500,20 @@ class Benchmark {
std::string end_trans_str = "END TRANSACTION;";
// Check for synchronous flag in options
- std::string sync_stmt = (write_sync) ? "PRAGMA synchronous = FULL" :
- "PRAGMA synchronous = OFF";
+ std::string sync_stmt =
+ (write_sync) ? "PRAGMA synchronous = FULL" : "PRAGMA synchronous = OFF";
status = sqlite3_exec(db_, sync_stmt.c_str(), nullptr, nullptr, &err_msg);
ExecErrorCheck(status, err_msg);
// Preparing sqlite3 statements
- status = sqlite3_prepare_v2(db_, replace_str.c_str(), -1,
- &replace_stmt, nullptr);
+ status = sqlite3_prepare_v2(db_, replace_str.c_str(), -1, &replace_stmt,
+ nullptr);
ErrorCheck(status);
status = sqlite3_prepare_v2(db_, begin_trans_str.c_str(), -1,
&begin_trans_stmt, nullptr);
ErrorCheck(status);
- status = sqlite3_prepare_v2(db_, end_trans_str.c_str(), -1,
- &end_trans_stmt, nullptr);
+ status = sqlite3_prepare_v2(db_, end_trans_str.c_str(), -1, &end_trans_stmt,
+ nullptr);
ErrorCheck(status);
bool transaction = (entries_per_batch > 1);
@@ -538,16 +531,16 @@ class Benchmark {
const char* value = gen_.Generate(value_size).data();
// Create values for key-value pair
- const int k = (order == SEQUENTIAL) ? i + j :
- (rand_.Next() % num_entries);
+ const int k =
+ (order == SEQUENTIAL) ? i + j : (rand_.Next() % num_entries);
char key[100];
snprintf(key, sizeof(key), "%016d", k);
// Bind KV values into replace_stmt
status = sqlite3_bind_blob(replace_stmt, 1, key, 16, SQLITE_STATIC);
ErrorCheck(status);
- status = sqlite3_bind_blob(replace_stmt, 2, value,
- value_size, SQLITE_STATIC);
+ status = sqlite3_bind_blob(replace_stmt, 2, value, value_size,
+ SQLITE_STATIC);
ErrorCheck(status);
// Execute replace_stmt
@@ -593,8 +586,8 @@ class Benchmark {
status = sqlite3_prepare_v2(db_, begin_trans_str.c_str(), -1,
&begin_trans_stmt, nullptr);
ErrorCheck(status);
- status = sqlite3_prepare_v2(db_, end_trans_str.c_str(), -1,
- &end_trans_stmt, nullptr);
+ status = sqlite3_prepare_v2(db_, end_trans_str.c_str(), -1, &end_trans_stmt,
+ nullptr);
ErrorCheck(status);
status = sqlite3_prepare_v2(db_, read_str.c_str(), -1, &read_stmt, nullptr);
ErrorCheck(status);
@@ -621,7 +614,8 @@ class Benchmark {
ErrorCheck(status);
// Execute read statement
- while ((status = sqlite3_step(read_stmt)) == SQLITE_ROW) {}
+ while ((status = sqlite3_step(read_stmt)) == SQLITE_ROW) {
+ }
StepErrorCheck(status);
// Reset SQLite statement for another use
@@ -651,7 +645,7 @@ class Benchmark {
void ReadSequential() {
int status;
- sqlite3_stmt *pStmt;
+ sqlite3_stmt* pStmt;
std::string read_str = "SELECT * FROM test ORDER BY key";
status = sqlite3_prepare_v2(db_, read_str.c_str(), -1, &pStmt, nullptr);
@@ -664,7 +658,6 @@ class Benchmark {
status = sqlite3_finalize(pStmt);
ErrorCheck(status);
}
-
};
} // namespace leveldb
@@ -710,9 +703,9 @@ int main(int argc, char** argv) {
// Choose a location for the test database if none given with --db=<path>
if (FLAGS_db == nullptr) {
- leveldb::Env::Default()->GetTestDirectory(&default_db_path);
- default_db_path += "/dbbench";
- FLAGS_db = default_db_path.c_str();
+ leveldb::Env::Default()->GetTestDirectory(&default_db_path);
+ default_db_path += "/dbbench";
+ FLAGS_db = default_db_path.c_str();
}
leveldb::Benchmark benchmark;
diff --git a/doc/bench/db_bench_tree_db.cc b/doc/bench/db_bench_tree_db.cc
index 9f8fb90..b2f6646 100644
--- a/doc/bench/db_bench_tree_db.cc
+++ b/doc/bench/db_bench_tree_db.cc
@@ -2,9 +2,10 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
+#include <kcpolydb.h>
#include <stdio.h>
#include <stdlib.h>
-#include <kcpolydb.h>
+
#include "util/histogram.h"
#include "util/random.h"
#include "util/testutil.h"
@@ -34,8 +35,7 @@ static const char* FLAGS_benchmarks =
"fillrand100K,"
"fillseq100K,"
"readseq100K,"
- "readrand100K,"
- ;
+ "readrand100K,";
// Number of key/values to place in database
static int FLAGS_num = 1000000;
@@ -71,9 +71,7 @@ static bool FLAGS_compression = true;
// Use the db with the following name.
static const char* FLAGS_db = nullptr;
-inline
-static void DBSynchronize(kyotocabinet::TreeDB* db_)
-{
+inline static void DBSynchronize(kyotocabinet::TreeDB* db_) {
// Synchronize will flush writes to disk
if (!db_->synchronize()) {
fprintf(stderr, "synchronize error: %s\n", db_->error().name());
@@ -121,7 +119,7 @@ static Slice TrimSpace(Slice s) {
start++;
}
int limit = s.size();
- while (limit > start && isspace(s[limit-1])) {
+ while (limit > start && isspace(s[limit - 1])) {
limit--;
}
return Slice(s.data() + start, limit - start);
@@ -146,7 +144,7 @@ class Benchmark {
// State kept for progress messages
int done_;
- int next_report_; // When to report next
+ int next_report_; // When to report next
void PrintHeader() {
const int kKeySize = 16;
@@ -157,20 +155,20 @@ class Benchmark {
static_cast<int>(FLAGS_value_size * FLAGS_compression_ratio + 0.5));
fprintf(stdout, "Entries: %d\n", num_);
fprintf(stdout, "RawSize: %.1f MB (estimated)\n",
- ((static_cast<int64_t>(kKeySize + FLAGS_value_size) * num_)
- / 1048576.0));
+ ((static_cast<int64_t>(kKeySize + FLAGS_value_size) * num_) /
+ 1048576.0));
fprintf(stdout, "FileSize: %.1f MB (estimated)\n",
- (((kKeySize + FLAGS_value_size * FLAGS_compression_ratio) * num_)
- / 1048576.0));
+ (((kKeySize + FLAGS_value_size * FLAGS_compression_ratio) * num_) /
+ 1048576.0));
PrintWarnings();
fprintf(stdout, "------------------------------------------------\n");
}
void PrintWarnings() {
#if defined(__GNUC__) && !defined(__OPTIMIZE__)
- fprintf(stdout,
- "WARNING: Optimization is disabled: benchmarks unnecessarily slow\n"
- );
+ fprintf(
+ stdout,
+ "WARNING: Optimization is disabled: benchmarks unnecessarily slow\n");
#endif
#ifndef NDEBUG
fprintf(stdout,
@@ -237,13 +235,20 @@ class Benchmark {
done_++;
if (done_ >= next_report_) {
- if (next_report_ < 1000) next_report_ += 100;
- else if (next_report_ < 5000) next_report_ += 500;
- else if (next_report_ < 10000) next_report_ += 1000;
- else if (next_report_ < 50000) next_report_ += 5000;
- else if (next_report_ < 100000) next_report_ += 10000;
- else if (next_report_ < 500000) next_report_ += 50000;
- else next_report_ += 100000;
+ if (next_report_ < 1000)
+ next_report_ += 100;
+ else if (next_report_ < 5000)
+ next_report_ += 500;
+ else if (next_report_ < 10000)
+ next_report_ += 1000;
+ else if (next_report_ < 50000)
+ next_report_ += 5000;
+ else if (next_report_ < 100000)
+ next_report_ += 10000;
+ else if (next_report_ < 500000)
+ next_report_ += 50000;
+ else
+ next_report_ += 100000;
fprintf(stderr, "... finished %d ops%30s\r", done_, "");
fflush(stderr);
}
@@ -261,16 +266,14 @@ class Benchmark {
snprintf(rate, sizeof(rate), "%6.1f MB/s",
(bytes_ / 1048576.0) / (finish - start_));
if (!message_.empty()) {
- message_ = std::string(rate) + " " + message_;
+ message_ = std::string(rate) + " " + message_;
} else {
message_ = rate;
}
}
- fprintf(stdout, "%-12s : %11.3f micros/op;%s%s\n",
- name.ToString().c_str(),
- (finish - start_) * 1e6 / done_,
- (message_.empty() ? "" : " "),
+ fprintf(stdout, "%-12s : %11.3f micros/op;%s%s\n", name.ToString().c_str(),
+ (finish - start_) * 1e6 / done_, (message_.empty() ? "" : " "),
message_.c_str());
if (FLAGS_histogram) {
fprintf(stdout, "Microseconds per op:\n%s\n", hist_.ToString().c_str());
@@ -279,21 +282,15 @@ class Benchmark {
}
public:
- enum Order {
- SEQUENTIAL,
- RANDOM
- };
- enum DBState {
- FRESH,
- EXISTING
- };
+ enum Order { SEQUENTIAL, RANDOM };
+ enum DBState { FRESH, EXISTING };
Benchmark()
- : db_(nullptr),
- num_(FLAGS_num),
- reads_(FLAGS_reads < 0 ? FLAGS_num : FLAGS_reads),
- bytes_(0),
- rand_(301) {
+ : db_(nullptr),
+ num_(FLAGS_num),
+ reads_(FLAGS_reads < 0 ? FLAGS_num : FLAGS_reads),
+ bytes_(0),
+ rand_(301) {
std::vector<std::string> files;
std::string test_dir;
Env::Default()->GetTestDirectory(&test_dir);
@@ -386,7 +383,7 @@ class Benchmark {
}
private:
- void Open(bool sync) {
+ void Open(bool sync) {
assert(db_ == nullptr);
// Initialize db_
@@ -395,16 +392,14 @@ class Benchmark {
db_num_++;
std::string test_dir;
Env::Default()->GetTestDirectory(&test_dir);
- snprintf(file_name, sizeof(file_name),
- "%s/dbbench_polyDB-%d.kct",
- test_dir.c_str(),
- db_num_);
+ snprintf(file_name, sizeof(file_name), "%s/dbbench_polyDB-%d.kct",
+ test_dir.c_str(), db_num_);
// Create tuning options and open the database
- int open_options = kyotocabinet::PolyDB::OWRITER |
- kyotocabinet::PolyDB::OCREATE;
- int tune_options = kyotocabinet::TreeDB::TSMALL |
- kyotocabinet::TreeDB::TLINEAR;
+ int open_options =
+ kyotocabinet::PolyDB::OWRITER | kyotocabinet::PolyDB::OCREATE;
+ int tune_options =
+ kyotocabinet::TreeDB::TSMALL | kyotocabinet::TreeDB::TLINEAR;
if (FLAGS_compression) {
tune_options |= kyotocabinet::TreeDB::TCOMPRESS;
db_->tune_compressor(&comp_);
@@ -412,7 +407,7 @@ class Benchmark {
db_->tune_options(tune_options);
db_->tune_page_cache(FLAGS_cache_size);
db_->tune_page(FLAGS_page_size);
- db_->tune_map(256LL<<20);
+ db_->tune_map(256LL << 20);
if (sync) {
open_options |= kyotocabinet::PolyDB::OAUTOSYNC;
}
@@ -421,8 +416,8 @@ class Benchmark {
}
}
- void Write(bool sync, Order order, DBState state,
- int num_entries, int value_size, int entries_per_batch) {
+ void Write(bool sync, Order order, DBState state, int num_entries,
+ int value_size, int entries_per_batch) {
// Create new database if state == FRESH
if (state == FRESH) {
if (FLAGS_use_existing_db) {
@@ -442,8 +437,7 @@ class Benchmark {
}
// Write to database
- for (int i = 0; i < num_entries; i++)
- {
+ for (int i = 0; i < num_entries; i++) {
const int k = (order == SEQUENTIAL) ? i : (rand_.Next() % num_entries);
char key[100];
snprintf(key, sizeof(key), "%016d", k);
@@ -517,9 +511,9 @@ int main(int argc, char** argv) {
// Choose a location for the test database if none given with --db=<path>
if (FLAGS_db == nullptr) {
- leveldb::Env::Default()->GetTestDirectory(&default_db_path);
- default_db_path += "/dbbench";
- FLAGS_db = default_db_path.c_str();
+ leveldb::Env::Default()->GetTestDirectory(&default_db_path);
+ default_db_path += "/dbbench";
+ FLAGS_db = default_db_path.c_str();
}
leveldb::Benchmark benchmark;
diff --git a/helpers/memenv/memenv.cc b/helpers/memenv/memenv.cc
index ff384e4..58dc538 100644
--- a/helpers/memenv/memenv.cc
+++ b/helpers/memenv/memenv.cc
@@ -134,9 +134,7 @@ class FileState {
private:
// Private since only Unref() should be used to delete it.
- ~FileState() {
- Truncate();
- }
+ ~FileState() { Truncate(); }
// No copying allowed.
FileState(const FileState&);
@@ -158,9 +156,7 @@ class SequentialFileImpl : public SequentialFile {
file_->Ref();
}
- ~SequentialFileImpl() {
- file_->Unref();
- }
+ ~SequentialFileImpl() { file_->Unref(); }
virtual Status Read(size_t n, Slice* result, char* scratch) {
Status s = file_->Read(pos_, n, result, scratch);
@@ -189,13 +185,9 @@ class SequentialFileImpl : public SequentialFile {
class RandomAccessFileImpl : public RandomAccessFile {
public:
- explicit RandomAccessFileImpl(FileState* file) : file_(file) {
- file_->Ref();
- }
+ explicit RandomAccessFileImpl(FileState* file) : file_(file) { file_->Ref(); }
- ~RandomAccessFileImpl() {
- file_->Unref();
- }
+ ~RandomAccessFileImpl() { file_->Unref(); }
virtual Status Read(uint64_t offset, size_t n, Slice* result,
char* scratch) const {
@@ -208,17 +200,11 @@ class RandomAccessFileImpl : public RandomAccessFile {
class WritableFileImpl : public WritableFile {
public:
- WritableFileImpl(FileState* file) : file_(file) {
- file_->Ref();
- }
+ WritableFileImpl(FileState* file) : file_(file) { file_->Ref(); }
- ~WritableFileImpl() {
- file_->Unref();
- }
+ ~WritableFileImpl() { file_->Unref(); }
- virtual Status Append(const Slice& data) {
- return file_->Append(data);
- }
+ virtual Status Append(const Slice& data) { return file_->Append(data); }
virtual Status Close() { return Status::OK(); }
virtual Status Flush() { return Status::OK(); }
@@ -230,15 +216,16 @@ class WritableFileImpl : public WritableFile {
class NoOpLogger : public Logger {
public:
- virtual void Logv(const char* format, va_list ap) { }
+ virtual void Logv(const char* format, va_list ap) {}
};
class InMemoryEnv : public EnvWrapper {
public:
- explicit InMemoryEnv(Env* base_env) : EnvWrapper(base_env) { }
+ explicit InMemoryEnv(Env* base_env) : EnvWrapper(base_env) {}
virtual ~InMemoryEnv() {
- for (FileSystem::iterator i = file_map_.begin(); i != file_map_.end(); ++i){
+ for (FileSystem::iterator i = file_map_.begin(); i != file_map_.end();
+ ++i) {
i->second->Unref();
}
}
@@ -311,7 +298,8 @@ class InMemoryEnv : public EnvWrapper {
MutexLock lock(&mutex_);
result->clear();
- for (FileSystem::iterator i = file_map_.begin(); i != file_map_.end(); ++i){
+ for (FileSystem::iterator i = file_map_.begin(); i != file_map_.end();
+ ++i) {
const std::string& filename = i->first;
if (filename.size() >= dir.size() + 1 && filename[dir.size()] == '/' &&
@@ -343,13 +331,9 @@ class InMemoryEnv : public EnvWrapper {
return Status::OK();
}
- virtual Status CreateDir(const std::string& dirname) {
- return Status::OK();
- }
+ virtual Status CreateDir(const std::string& dirname) { return Status::OK(); }
- virtual Status DeleteDir(const std::string& dirname) {
- return Status::OK();
- }
+ virtual Status DeleteDir(const std::string& dirname) { return Status::OK(); }
virtual Status GetFileSize(const std::string& fname, uint64_t* file_size) {
MutexLock lock(&mutex_);
@@ -361,8 +345,7 @@ class InMemoryEnv : public EnvWrapper {
return Status::OK();
}
- virtual Status RenameFile(const std::string& src,
- const std::string& target) {
+ virtual Status RenameFile(const std::string& src, const std::string& target) {
MutexLock lock(&mutex_);
if (file_map_.find(src) == file_map_.end()) {
return Status::IOError(src, "File not found");
@@ -403,8 +386,6 @@ class InMemoryEnv : public EnvWrapper {
} // namespace
-Env* NewMemEnv(Env* base_env) {
- return new InMemoryEnv(base_env);
-}
+Env* NewMemEnv(Env* base_env) { return new InMemoryEnv(base_env); }
} // namespace leveldb
diff --git a/helpers/memenv/memenv_test.cc b/helpers/memenv/memenv_test.cc
index 4664795..a0a9469 100644
--- a/helpers/memenv/memenv_test.cc
+++ b/helpers/memenv/memenv_test.cc
@@ -4,12 +4,13 @@
#include "helpers/memenv/memenv.h"
+#include <string>
+#include <vector>
+
#include "db/db_impl.h"
#include "leveldb/db.h"
#include "leveldb/env.h"
#include "util/testharness.h"
-#include <string>
-#include <vector>
namespace leveldb {
@@ -17,12 +18,8 @@ class MemEnvTest {
public:
Env* env_;
- MemEnvTest()
- : env_(NewMemEnv(Env::Default())) {
- }
- ~MemEnvTest() {
- delete env_;
- }
+ MemEnvTest() : env_(NewMemEnv(Env::Default())) {}
+ ~MemEnvTest() { delete env_; }
};
TEST(MemEnvTest, Basics) {
@@ -109,25 +106,25 @@ TEST(MemEnvTest, ReadWrite) {
// Read sequentially.
ASSERT_OK(env_->NewSequentialFile("/dir/f", &seq_file));
- ASSERT_OK(seq_file->Read(5, &result, scratch)); // Read "hello".
+ ASSERT_OK(seq_file->Read(5, &result, scratch)); // Read "hello".
ASSERT_EQ(0, result.compare("hello"));
ASSERT_OK(seq_file->Skip(1));
- ASSERT_OK(seq_file->Read(1000, &result, scratch)); // Read "world".
+ ASSERT_OK(seq_file->Read(1000, &result, scratch)); // Read "world".
ASSERT_EQ(0, result.compare("world"));
- ASSERT_OK(seq_file->Read(1000, &result, scratch)); // Try reading past EOF.
+ ASSERT_OK(seq_file->Read(1000, &result, scratch)); // Try reading past EOF.
ASSERT_EQ(0, result.size());
- ASSERT_OK(seq_file->Skip(100)); // Try to skip past end of file.
+ ASSERT_OK(seq_file->Skip(100)); // Try to skip past end of file.
ASSERT_OK(seq_file->Read(1000, &result, scratch));
ASSERT_EQ(0, result.size());
delete seq_file;
// Random reads.
ASSERT_OK(env_->NewRandomAccessFile("/dir/f", &rand_file));
- ASSERT_OK(rand_file->Read(6, 5, &result, scratch)); // Read "world".
+ ASSERT_OK(rand_file->Read(6, 5, &result, scratch)); // Read "world".
ASSERT_EQ(0, result.compare("world"));
- ASSERT_OK(rand_file->Read(0, 5, &result, scratch)); // Read "hello".
+ ASSERT_OK(rand_file->Read(0, 5, &result, scratch)); // Read "hello".
ASSERT_EQ(0, result.compare("hello"));
- ASSERT_OK(rand_file->Read(10, 100, &result, scratch)); // Read "d".
+ ASSERT_OK(rand_file->Read(10, 100, &result, scratch)); // Read "d".
ASSERT_EQ(0, result.compare("d"));
// Too high offset.
@@ -176,7 +173,7 @@ TEST(MemEnvTest, LargeWrite) {
SequentialFile* seq_file;
Slice result;
ASSERT_OK(env_->NewSequentialFile("/dir/f", &seq_file));
- ASSERT_OK(seq_file->Read(3, &result, scratch)); // Read "foo".
+ ASSERT_OK(seq_file->Read(3, &result, scratch)); // Read "foo".
ASSERT_EQ(0, result.compare("foo"));
size_t read = 0;
@@ -188,7 +185,7 @@ TEST(MemEnvTest, LargeWrite) {
}
ASSERT_TRUE(write_data == read_data);
delete seq_file;
- delete [] scratch;
+ delete[] scratch;
}
TEST(MemEnvTest, OverwriteOpenFile) {
@@ -259,6 +256,4 @@ TEST(MemEnvTest, DBTest) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/include/leveldb/c.h b/include/leveldb/c.h
index d8aab5b..8e0d592 100644
--- a/include/leveldb/c.h
+++ b/include/leveldb/c.h
@@ -47,26 +47,27 @@ extern "C" {
#include <stdarg.h>
#include <stddef.h>
#include <stdint.h>
+
#include "leveldb/export.h"
/* Exported types */
-typedef struct leveldb_t leveldb_t;
-typedef struct leveldb_cache_t leveldb_cache_t;
-typedef struct leveldb_comparator_t leveldb_comparator_t;
-typedef struct leveldb_env_t leveldb_env_t;
-typedef struct leveldb_filelock_t leveldb_filelock_t;
-typedef struct leveldb_filterpolicy_t leveldb_filterpolicy_t;
-typedef struct leveldb_iterator_t leveldb_iterator_t;
-typedef struct leveldb_logger_t leveldb_logger_t;
-typedef struct leveldb_options_t leveldb_options_t;
-typedef struct leveldb_randomfile_t leveldb_randomfile_t;
-typedef struct leveldb_readoptions_t leveldb_readoptions_t;
-typedef struct leveldb_seqfile_t leveldb_seqfile_t;
-typedef struct leveldb_snapshot_t leveldb_snapshot_t;
-typedef struct leveldb_writablefile_t leveldb_writablefile_t;
-typedef struct leveldb_writebatch_t leveldb_writebatch_t;
-typedef struct leveldb_writeoptions_t leveldb_writeoptions_t;
+typedef struct leveldb_t leveldb_t;
+typedef struct leveldb_cache_t leveldb_cache_t;
+typedef struct leveldb_comparator_t leveldb_comparator_t;
+typedef struct leveldb_env_t leveldb_env_t;
+typedef struct leveldb_filelock_t leveldb_filelock_t;
+typedef struct leveldb_filterpolicy_t leveldb_filterpolicy_t;
+typedef struct leveldb_iterator_t leveldb_iterator_t;
+typedef struct leveldb_logger_t leveldb_logger_t;
+typedef struct leveldb_options_t leveldb_options_t;
+typedef struct leveldb_randomfile_t leveldb_randomfile_t;
+typedef struct leveldb_readoptions_t leveldb_readoptions_t;
+typedef struct leveldb_seqfile_t leveldb_seqfile_t;
+typedef struct leveldb_snapshot_t leveldb_snapshot_t;
+typedef struct leveldb_writablefile_t leveldb_writablefile_t;
+typedef struct leveldb_writebatch_t leveldb_writebatch_t;
+typedef struct leveldb_writeoptions_t leveldb_writeoptions_t;
/* DB operations */
@@ -189,10 +190,7 @@ LEVELDB_EXPORT void leveldb_options_set_block_restart_interval(
LEVELDB_EXPORT void leveldb_options_set_max_file_size(leveldb_options_t*,
size_t);
-enum {
- leveldb_no_compression = 0,
- leveldb_snappy_compression = 1
-};
+enum { leveldb_no_compression = 0, leveldb_snappy_compression = 1 };
LEVELDB_EXPORT void leveldb_options_set_compression(leveldb_options_t*, int);
/* Comparator */
@@ -266,7 +264,7 @@ LEVELDB_EXPORT int leveldb_major_version();
LEVELDB_EXPORT int leveldb_minor_version();
#ifdef __cplusplus
-} /* end extern "C" */
+} /* end extern "C" */
#endif
-#endif /* STORAGE_LEVELDB_INCLUDE_C_H_ */
+#endif /* STORAGE_LEVELDB_INCLUDE_C_H_ */
diff --git a/include/leveldb/cache.h b/include/leveldb/cache.h
index e416ea5..7d1a221 100644
--- a/include/leveldb/cache.h
+++ b/include/leveldb/cache.h
@@ -19,6 +19,7 @@
#define STORAGE_LEVELDB_INCLUDE_CACHE_H_
#include <stdint.h>
+
#include "leveldb/export.h"
#include "leveldb/slice.h"
@@ -42,7 +43,7 @@ class LEVELDB_EXPORT Cache {
virtual ~Cache();
// Opaque handle to an entry stored in the cache.
- struct Handle { };
+ struct Handle {};
// Insert a mapping from key->value into the cache and assign it
// the specified charge against the total cache capacity.
diff --git a/include/leveldb/comparator.h b/include/leveldb/comparator.h
index 9b09684..a85b51e 100644
--- a/include/leveldb/comparator.h
+++ b/include/leveldb/comparator.h
@@ -6,6 +6,7 @@
#define STORAGE_LEVELDB_INCLUDE_COMPARATOR_H_
#include <string>
+
#include "leveldb/export.h"
namespace leveldb {
@@ -44,9 +45,8 @@ class LEVELDB_EXPORT Comparator {
// If *start < limit, changes *start to a short string in [start,limit).
// Simple comparator implementations may return with *start unchanged,
// i.e., an implementation of this method that does nothing is correct.
- virtual void FindShortestSeparator(
- std::string* start,
- const Slice& limit) const = 0;
+ virtual void FindShortestSeparator(std::string* start,
+ const Slice& limit) const = 0;
// Changes *key to a short string >= *key.
// Simple comparator implementations may return with *key unchanged,
diff --git a/include/leveldb/db.h b/include/leveldb/db.h
index 0239593..0b8dc24 100644
--- a/include/leveldb/db.h
+++ b/include/leveldb/db.h
@@ -7,6 +7,7 @@
#include <stdint.h>
#include <stdio.h>
+
#include "leveldb/export.h"
#include "leveldb/iterator.h"
#include "leveldb/options.h"
@@ -32,11 +33,11 @@ class LEVELDB_EXPORT Snapshot {
// A range of keys
struct LEVELDB_EXPORT Range {
- Slice start; // Included in the range
- Slice limit; // Not included in the range
+ Slice start; // Included in the range
+ Slice limit; // Not included in the range
- Range() { }
- Range(const Slice& s, const Slice& l) : start(s), limit(l) { }
+ Range() {}
+ Range(const Slice& s, const Slice& l) : start(s), limit(l) {}
};
// A DB is a persistent ordered map from keys to values.
@@ -49,8 +50,7 @@ class LEVELDB_EXPORT DB {
// OK on success.
// Stores nullptr in *dbptr and returns a non-OK status on error.
// Caller should delete *dbptr when it is no longer needed.
- static Status Open(const Options& options,
- const std::string& name,
+ static Status Open(const Options& options, const std::string& name,
DB** dbptr);
DB() = default;
@@ -63,8 +63,7 @@ class LEVELDB_EXPORT DB {
// Set the database entry for "key" to "value". Returns OK on success,
// and a non-OK status on error.
// Note: consider setting options.sync = true.
- virtual Status Put(const WriteOptions& options,
- const Slice& key,
+ virtual Status Put(const WriteOptions& options, const Slice& key,
const Slice& value) = 0;
// Remove the database entry (if any) for "key". Returns OK on
@@ -85,8 +84,8 @@ class LEVELDB_EXPORT DB {
// a status for which Status::IsNotFound() returns true.
//
// May return some other Status on an error.
- virtual Status Get(const ReadOptions& options,
- const Slice& key, std::string* value) = 0;
+ virtual Status Get(const ReadOptions& options, const Slice& key,
+ std::string* value) = 0;
// Return a heap-allocated iterator over the contents of the database.
// The result of NewIterator() is initially invalid (caller must
diff --git a/include/leveldb/dumpfile.h b/include/leveldb/dumpfile.h
index 6597741..a58bc6b 100644
--- a/include/leveldb/dumpfile.h
+++ b/include/leveldb/dumpfile.h
@@ -6,6 +6,7 @@
#define STORAGE_LEVELDB_INCLUDE_DUMPFILE_H_
#include <string>
+
#include "leveldb/env.h"
#include "leveldb/export.h"
#include "leveldb/status.h"
diff --git a/include/leveldb/env.h b/include/leveldb/env.h
index ea728c9..112fe96 100644
--- a/include/leveldb/env.h
+++ b/include/leveldb/env.h
@@ -15,8 +15,10 @@
#include <stdarg.h>
#include <stdint.h>
+
#include <string>
#include <vector>
+
#include "leveldb/export.h"
#include "leveldb/status.h"
@@ -164,9 +166,7 @@ class LEVELDB_EXPORT Env {
// added to the same Env may run concurrently in different threads.
// I.e., the caller may not assume that background work items are
// serialized.
- virtual void Schedule(
- void (*function)(void* arg),
- void* arg) = 0;
+ virtual void Schedule(void (*function)(void* arg), void* arg) = 0;
// Start a new thread, invoking "function(arg)" within the new thread.
// When "function(arg)" returns, the thread will be destroyed.
@@ -287,9 +287,9 @@ class LEVELDB_EXPORT FileLock {
// Log the specified data to *info_log if info_log is non-null.
void Log(Logger* info_log, const char* format, ...)
-# if defined(__GNUC__) || defined(__clang__)
- __attribute__((__format__ (__printf__, 2, 3)))
-# endif
+#if defined(__GNUC__) || defined(__clang__)
+ __attribute__((__format__(__printf__, 2, 3)))
+#endif
;
// A utility routine: write "data" to the named file.
@@ -306,7 +306,7 @@ LEVELDB_EXPORT Status ReadFileToString(Env* env, const std::string& fname,
class LEVELDB_EXPORT EnvWrapper : public Env {
public:
// Initialize an EnvWrapper that delegates all calls to *t.
- explicit EnvWrapper(Env* t) : target_(t) { }
+ explicit EnvWrapper(Env* t) : target_(t) {}
virtual ~EnvWrapper();
// Return the target to which this Env forwards all calls.
@@ -364,9 +364,7 @@ class LEVELDB_EXPORT EnvWrapper : public Env {
Status NewLogger(const std::string& fname, Logger** result) override {
return target_->NewLogger(fname, result);
}
- uint64_t NowMicros() override {
- return target_->NowMicros();
- }
+ uint64_t NowMicros() override { return target_->NowMicros(); }
void SleepForMicroseconds(int micros) override {
target_->SleepForMicroseconds(micros);
}
diff --git a/include/leveldb/filter_policy.h b/include/leveldb/filter_policy.h
index ba02720..49c8eda 100644
--- a/include/leveldb/filter_policy.h
+++ b/include/leveldb/filter_policy.h
@@ -17,6 +17,7 @@
#define STORAGE_LEVELDB_INCLUDE_FILTER_POLICY_H_
#include <string>
+
#include "leveldb/export.h"
namespace leveldb {
@@ -39,8 +40,8 @@ class LEVELDB_EXPORT FilterPolicy {
//
// Warning: do not change the initial contents of *dst. Instead,
// append the newly constructed filter to *dst.
- virtual void CreateFilter(const Slice* keys, int n, std::string* dst)
- const = 0;
+ virtual void CreateFilter(const Slice* keys, int n,
+ std::string* dst) const = 0;
// "filter" contains the data appended by a preceding call to
// CreateFilter() on this class. This method must return true if
diff --git a/include/leveldb/iterator.h b/include/leveldb/iterator.h
index 6c1d91b..447e950 100644
--- a/include/leveldb/iterator.h
+++ b/include/leveldb/iterator.h
@@ -93,7 +93,10 @@ class LEVELDB_EXPORT Iterator {
// True if the node is not used. Only head nodes might be unused.
bool IsEmpty() const { return function == nullptr; }
// Invokes the cleanup function.
- void Run() { assert(function != nullptr); (*function)(arg1, arg2); }
+ void Run() {
+ assert(function != nullptr);
+ (*function)(arg1, arg2);
+ }
};
CleanupNode cleanup_head_;
};
diff --git a/include/leveldb/options.h b/include/leveldb/options.h
index 90aa19e..7e26dc6 100644
--- a/include/leveldb/options.h
+++ b/include/leveldb/options.h
@@ -6,6 +6,7 @@
#define STORAGE_LEVELDB_INCLUDE_OPTIONS_H_
#include <stddef.h>
+
#include "leveldb/export.h"
namespace leveldb {
@@ -24,7 +25,7 @@ class Snapshot;
enum CompressionType {
// NOTE: do not change the values of existing entries, as these are
// part of the persistent format on disk.
- kNoCompression = 0x0,
+ kNoCompression = 0x0,
kSnappyCompression = 0x1
};
diff --git a/include/leveldb/slice.h b/include/leveldb/slice.h
index a86e8a6..2df417d 100644
--- a/include/leveldb/slice.h
+++ b/include/leveldb/slice.h
@@ -18,7 +18,9 @@
#include <assert.h>
#include <stddef.h>
#include <string.h>
+
#include <string>
+
#include "leveldb/export.h"
namespace leveldb {
@@ -26,16 +28,16 @@ namespace leveldb {
class LEVELDB_EXPORT Slice {
public:
// Create an empty slice.
- Slice() : data_(""), size_(0) { }
+ Slice() : data_(""), size_(0) {}
// Create a slice that refers to d[0,n-1].
- Slice(const char* d, size_t n) : data_(d), size_(n) { }
+ Slice(const char* d, size_t n) : data_(d), size_(n) {}
// Create a slice that refers to the contents of "s"
- Slice(const std::string& s) : data_(s.data()), size_(s.size()) { }
+ Slice(const std::string& s) : data_(s.data()), size_(s.size()) {}
// Create a slice that refers to s[0,strlen(s)-1]
- Slice(const char* s) : data_(s), size_(strlen(s)) { }
+ Slice(const char* s) : data_(s), size_(strlen(s)) {}
// Intentionally copyable.
Slice(const Slice&) = default;
@@ -58,7 +60,10 @@ class LEVELDB_EXPORT Slice {
}
// Change this slice to refer to an empty array
- void clear() { data_ = ""; size_ = 0; }
+ void clear() {
+ data_ = "";
+ size_ = 0;
+ }
// Drop the first "n" bytes from this slice.
void remove_prefix(size_t n) {
@@ -78,8 +83,7 @@ class LEVELDB_EXPORT Slice {
// Return true iff "x" is a prefix of "*this"
bool starts_with(const Slice& x) const {
- return ((size_ >= x.size_) &&
- (memcmp(data_, x.data_, x.size_) == 0));
+ return ((size_ >= x.size_) && (memcmp(data_, x.data_, x.size_) == 0));
}
private:
@@ -92,21 +96,20 @@ inline bool operator==(const Slice& x, const Slice& y) {
(memcmp(x.data(), y.data(), x.size()) == 0));
}
-inline bool operator!=(const Slice& x, const Slice& y) {
- return !(x == y);
-}
+inline bool operator!=(const Slice& x, const Slice& y) { return !(x == y); }
inline int Slice::compare(const Slice& b) const {
const size_t min_len = (size_ < b.size_) ? size_ : b.size_;
int r = memcmp(data_, b.data_, min_len);
if (r == 0) {
- if (size_ < b.size_) r = -1;
- else if (size_ > b.size_) r = +1;
+ if (size_ < b.size_)
+ r = -1;
+ else if (size_ > b.size_)
+ r = +1;
}
return r;
}
} // namespace leveldb
-
#endif // STORAGE_LEVELDB_INCLUDE_SLICE_H_
diff --git a/include/leveldb/status.h b/include/leveldb/status.h
index ee9fac2..54cf377 100644
--- a/include/leveldb/status.h
+++ b/include/leveldb/status.h
@@ -15,6 +15,7 @@
#include <algorithm>
#include <string>
+
#include "leveldb/export.h"
#include "leveldb/slice.h"
@@ -23,7 +24,7 @@ namespace leveldb {
class LEVELDB_EXPORT Status {
public:
// Create a success status.
- Status() noexcept : state_(nullptr) { }
+ Status() noexcept : state_(nullptr) {}
~Status() { delete[] state_; }
Status(const Status& rhs);
diff --git a/include/leveldb/table.h b/include/leveldb/table.h
index e9f6641..14a6a44 100644
--- a/include/leveldb/table.h
+++ b/include/leveldb/table.h
@@ -6,6 +6,7 @@
#define STORAGE_LEVELDB_INCLUDE_TABLE_H_
#include <stdint.h>
+
#include "leveldb/export.h"
#include "leveldb/iterator.h"
@@ -36,10 +37,8 @@ class LEVELDB_EXPORT Table {
// for the duration of the returned table's lifetime.
//
// *file must remain live while this Table is in use.
- static Status Open(const Options& options,
- RandomAccessFile* file,
- uint64_t file_size,
- Table** table);
+ static Status Open(const Options& options, RandomAccessFile* file,
+ uint64_t file_size, Table** table);
Table(const Table&) = delete;
void operator=(const Table&) = delete;
@@ -70,11 +69,9 @@ class LEVELDB_EXPORT Table {
// to Seek(key). May not make such a call if filter policy says
// that key is not present.
friend class TableCache;
- Status InternalGet(
- const ReadOptions&, const Slice& key,
- void* arg,
- void (*handle_result)(void* arg, const Slice& k, const Slice& v));
-
+ Status InternalGet(const ReadOptions&, const Slice& key, void* arg,
+ void (*handle_result)(void* arg, const Slice& k,
+ const Slice& v));
void ReadMeta(const Footer& footer);
void ReadFilter(const Slice& filter_handle_value);
diff --git a/include/leveldb/table_builder.h b/include/leveldb/table_builder.h
index 8d05d33..f8361fd 100644
--- a/include/leveldb/table_builder.h
+++ b/include/leveldb/table_builder.h
@@ -14,6 +14,7 @@
#define STORAGE_LEVELDB_INCLUDE_TABLE_BUILDER_H_
#include <stdint.h>
+
#include "leveldb/export.h"
#include "leveldb/options.h"
#include "leveldb/status.h"
diff --git a/include/leveldb/write_batch.h b/include/leveldb/write_batch.h
index 5380c53..21f7c63 100644
--- a/include/leveldb/write_batch.h
+++ b/include/leveldb/write_batch.h
@@ -22,6 +22,7 @@
#define STORAGE_LEVELDB_INCLUDE_WRITE_BATCH_H_
#include <string>
+
#include "leveldb/export.h"
#include "leveldb/status.h"
@@ -35,7 +36,7 @@ class LEVELDB_EXPORT WriteBatch {
// Intentionally copyable.
WriteBatch(const WriteBatch&) = default;
- WriteBatch& operator =(const WriteBatch&) = default;
+ WriteBatch& operator=(const WriteBatch&) = default;
~WriteBatch();
diff --git a/issues/issue178_test.cc b/issues/issue178_test.cc
index 1b1cf8b..d50ffeb 100644
--- a/issues/issue178_test.cc
+++ b/issues/issue178_test.cc
@@ -3,9 +3,9 @@
// found in the LICENSE file. See the AUTHORS file for names of contributors.
// Test for issue 178: a manual compaction causes deleted data to reappear.
+#include <cstdlib>
#include <iostream>
#include <sstream>
-#include <cstdlib>
#include "leveldb/db.h"
#include "leveldb/write_batch.h"
@@ -21,11 +21,9 @@ std::string Key1(int i) {
return buf;
}
-std::string Key2(int i) {
- return Key1(i) + "_xxx";
-}
+std::string Key2(int i) { return Key1(i) + "_xxx"; }
-class Issue178 { };
+class Issue178 {};
TEST(Issue178, Test) {
// Get rid of any state from an old run.
@@ -87,6 +85,4 @@ TEST(Issue178, Test) {
} // anonymous namespace
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/issues/issue200_test.cc b/issues/issue200_test.cc
index 1cec79f..877b2af 100644
--- a/issues/issue200_test.cc
+++ b/issues/issue200_test.cc
@@ -11,14 +11,14 @@
namespace leveldb {
-class Issue200 { };
+class Issue200 {};
TEST(Issue200, Test) {
// Get rid of any state from an old run.
std::string dbpath = test::TmpDir() + "/leveldb_issue200_test";
DestroyDB(dbpath, Options());
- DB *db;
+ DB* db;
Options options;
options.create_if_missing = true;
ASSERT_OK(DB::Open(options, dbpath, &db));
@@ -31,7 +31,7 @@ TEST(Issue200, Test) {
ASSERT_OK(db->Put(write_options, "5", "f"));
ReadOptions read_options;
- Iterator *iter = db->NewIterator(read_options);
+ Iterator* iter = db->NewIterator(read_options);
// Add an element that should not be reflected in the iterator.
ASSERT_OK(db->Put(write_options, "25", "cd"));
@@ -54,6 +54,4 @@ TEST(Issue200, Test) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/port/port.h b/port/port.h
index b2210a7..4b247f7 100644
--- a/port/port.h
+++ b/port/port.h
@@ -11,9 +11,9 @@
// porting to a new platform, see "port_example.h" for documentation
// of what the new port_<platform>.h file must provide.
#if defined(LEVELDB_PLATFORM_POSIX) || defined(LEVELDB_PLATFORM_WINDOWS)
-# include "port/port_stdcxx.h"
+#include "port/port_stdcxx.h"
#elif defined(LEVELDB_PLATFORM_CHROMIUM)
-# include "port/port_chromium.h"
+#include "port/port_chromium.h"
#endif
#endif // STORAGE_LEVELDB_PORT_PORT_H_
diff --git a/port/port_stdcxx.h b/port/port_stdcxx.h
index 7638ded..e9cb0e5 100644
--- a/port/port_stdcxx.h
+++ b/port/port_stdcxx.h
@@ -30,10 +30,10 @@
#endif // HAVE_SNAPPY
#include <cassert>
+#include <condition_variable> // NOLINT
#include <cstddef>
#include <cstdint>
-#include <condition_variable> // NOLINT
-#include <mutex> // NOLINT
+#include <mutex> // NOLINT
#include <string>
#include "port/thread_annotations.h"
@@ -56,7 +56,7 @@ class LOCKABLE Mutex {
void Lock() EXCLUSIVE_LOCK_FUNCTION() { mu_.lock(); }
void Unlock() UNLOCK_FUNCTION() { mu_.unlock(); }
- void AssertHeld() ASSERT_EXCLUSIVE_LOCK() { }
+ void AssertHeld() ASSERT_EXCLUSIVE_LOCK() {}
private:
friend class CondVar;
@@ -79,6 +79,7 @@ class CondVar {
}
void Signal() { cv_.notify_one(); }
void SignalAll() { cv_.notify_all(); }
+
private:
std::condition_variable cv_;
Mutex* const mu_;
@@ -94,7 +95,9 @@ inline bool Snappy_Compress(const char* input, size_t length,
return true;
#else
// Silence compiler warnings about unused arguments.
- (void)input; (void)length; (void)output;
+ (void)input;
+ (void)length;
+ (void)output;
#endif // HAVE_SNAPPY
return false;
@@ -106,7 +109,9 @@ inline bool Snappy_GetUncompressedLength(const char* input, size_t length,
return snappy::GetUncompressedLength(input, length, result);
#else
// Silence compiler warnings about unused arguments.
- (void)input; (void)length; (void)result;
+ (void)input;
+ (void)length;
+ (void)result;
return false;
#endif // HAVE_SNAPPY
}
@@ -116,14 +121,17 @@ inline bool Snappy_Uncompress(const char* input, size_t length, char* output) {
return snappy::RawUncompress(input, length, output);
#else
// Silence compiler warnings about unused arguments.
- (void)input; (void)length; (void)output;
+ (void)input;
+ (void)length;
+ (void)output;
return false;
#endif // HAVE_SNAPPY
}
inline bool GetHeapProfile(void (*func)(void*, const char*, int), void* arg) {
// Silence compiler warnings about unused arguments.
- (void)func; (void)arg;
+ (void)func;
+ (void)arg;
return false;
}
@@ -132,7 +140,9 @@ inline uint32_t AcceleratedCRC32C(uint32_t crc, const char* buf, size_t size) {
return ::crc32c::Extend(crc, reinterpret_cast<const uint8_t*>(buf), size);
#else
// Silence compiler warnings about unused arguments.
- (void)crc; (void)buf; (void)size;
+ (void)crc;
+ (void)buf;
+ (void)size;
return 0;
#endif // HAVE_CRC32C
}
diff --git a/port/thread_annotations.h b/port/thread_annotations.h
index b737c69..1547df9 100644
--- a/port/thread_annotations.h
+++ b/port/thread_annotations.h
@@ -13,9 +13,9 @@
#if defined(__clang__)
-#define THREAD_ANNOTATION_ATTRIBUTE__(x) __attribute__((x))
+#define THREAD_ANNOTATION_ATTRIBUTE__(x) __attribute__((x))
#else
-#define THREAD_ANNOTATION_ATTRIBUTE__(x) // no-op
+#define THREAD_ANNOTATION_ATTRIBUTE__(x) // no-op
#endif
#endif // !defined(THREAD_ANNOTATION_ATTRIBUTE__)
@@ -54,18 +54,15 @@
#endif
#ifndef LOCK_RETURNED
-#define LOCK_RETURNED(x) \
- THREAD_ANNOTATION_ATTRIBUTE__(lock_returned(x))
+#define LOCK_RETURNED(x) THREAD_ANNOTATION_ATTRIBUTE__(lock_returned(x))
#endif
#ifndef LOCKABLE
-#define LOCKABLE \
- THREAD_ANNOTATION_ATTRIBUTE__(lockable)
+#define LOCKABLE THREAD_ANNOTATION_ATTRIBUTE__(lockable)
#endif
#ifndef SCOPED_LOCKABLE
-#define SCOPED_LOCKABLE \
- THREAD_ANNOTATION_ATTRIBUTE__(scoped_lockable)
+#define SCOPED_LOCKABLE THREAD_ANNOTATION_ATTRIBUTE__(scoped_lockable)
#endif
#ifndef EXCLUSIVE_LOCK_FUNCTION
diff --git a/table/block.cc b/table/block.cc
index 6fdfdea..ad0ee98 100644
--- a/table/block.cc
+++ b/table/block.cc
@@ -6,8 +6,9 @@
#include "table/block.h"
-#include <vector>
#include <algorithm>
+#include <vector>
+
#include "leveldb/comparator.h"
#include "table/format.h"
#include "util/coding.h"
@@ -27,7 +28,7 @@ Block::Block(const BlockContents& contents)
if (size_ < sizeof(uint32_t)) {
size_ = 0; // Error marker
} else {
- size_t max_restarts_allowed = (size_-sizeof(uint32_t)) / sizeof(uint32_t);
+ size_t max_restarts_allowed = (size_ - sizeof(uint32_t)) / sizeof(uint32_t);
if (NumRestarts() > max_restarts_allowed) {
// The size is too small for NumRestarts()
size_ = 0;
@@ -51,8 +52,7 @@ Block::~Block() {
// If any errors are detected, returns nullptr. Otherwise, returns a
// pointer to the key delta (just past the three decoded values).
static inline const char* DecodeEntry(const char* p, const char* limit,
- uint32_t* shared,
- uint32_t* non_shared,
+ uint32_t* shared, uint32_t* non_shared,
uint32_t* value_length) {
if (limit - p < 3) return nullptr;
*shared = reinterpret_cast<const unsigned char*>(p)[0];
@@ -76,9 +76,9 @@ static inline const char* DecodeEntry(const char* p, const char* limit,
class Block::Iter : public Iterator {
private:
const Comparator* const comparator_;
- const char* const data_; // underlying block contents
- uint32_t const restarts_; // Offset of restart array (list of fixed32)
- uint32_t const num_restarts_; // Number of uint32_t entries in restart array
+ const char* const data_; // underlying block contents
+ uint32_t const restarts_; // Offset of restart array (list of fixed32)
+ uint32_t const num_restarts_; // Number of uint32_t entries in restart array
// current_ is offset in data_ of current entry. >= restarts_ if !Valid
uint32_t current_;
@@ -112,9 +112,7 @@ class Block::Iter : public Iterator {
}
public:
- Iter(const Comparator* comparator,
- const char* data,
- uint32_t restarts,
+ Iter(const Comparator* comparator, const char* data, uint32_t restarts,
uint32_t num_restarts)
: comparator_(comparator),
data_(data),
@@ -171,9 +169,9 @@ class Block::Iter : public Iterator {
uint32_t mid = (left + right + 1) / 2;
uint32_t region_offset = GetRestartPoint(mid);
uint32_t shared, non_shared, value_length;
- const char* key_ptr = DecodeEntry(data_ + region_offset,
- data_ + restarts_,
- &shared, &non_shared, &value_length);
+ const char* key_ptr =
+ DecodeEntry(data_ + region_offset, data_ + restarts_, &shared,
+ &non_shared, &value_length);
if (key_ptr == nullptr || (shared != 0)) {
CorruptionError();
return;
@@ -253,7 +251,7 @@ class Block::Iter : public Iterator {
}
};
-Iterator* Block::NewIterator(const Comparator* cmp) {
+Iterator* Block::NewIterator(const Comparator* comparator) {
if (size_ < sizeof(uint32_t)) {
return NewErrorIterator(Status::Corruption("bad block contents"));
}
@@ -261,7 +259,7 @@ Iterator* Block::NewIterator(const Comparator* cmp) {
if (num_restarts == 0) {
return NewEmptyIterator();
} else {
- return new Iter(cmp, data_, restart_offset_, num_restarts);
+ return new Iter(comparator, data_, restart_offset_, num_restarts);
}
}
diff --git a/table/block.h b/table/block.h
index 2493eb9..3d4b03c 100644
--- a/table/block.h
+++ b/table/block.h
@@ -7,6 +7,7 @@
#include <stddef.h>
#include <stdint.h>
+
#include "leveldb/iterator.h"
namespace leveldb {
@@ -29,8 +30,8 @@ class Block {
const char* data_;
size_t size_;
- uint32_t restart_offset_; // Offset in data_ of restart array
- bool owned_; // Block owns data_[]
+ uint32_t restart_offset_; // Offset in data_ of restart array
+ bool owned_; // Block owns data_[]
// No copying allowed
Block(const Block&);
diff --git a/table/block_builder.cc b/table/block_builder.cc
index db660cd..f7cb1b0 100644
--- a/table/block_builder.cc
+++ b/table/block_builder.cc
@@ -28,8 +28,10 @@
#include "table/block_builder.h"
-#include <algorithm>
#include <assert.h>
+
+#include <algorithm>
+
#include "leveldb/comparator.h"
#include "leveldb/table_builder.h"
#include "util/coding.h"
@@ -37,27 +39,24 @@
namespace leveldb {
BlockBuilder::BlockBuilder(const Options* options)
- : options_(options),
- restarts_(),
- counter_(0),
- finished_(false) {
+ : options_(options), restarts_(), counter_(0), finished_(false) {
assert(options->block_restart_interval >= 1);
- restarts_.push_back(0); // First restart point is at offset 0
+ restarts_.push_back(0); // First restart point is at offset 0
}
void BlockBuilder::Reset() {
buffer_.clear();
restarts_.clear();
- restarts_.push_back(0); // First restart point is at offset 0
+ restarts_.push_back(0); // First restart point is at offset 0
counter_ = 0;
finished_ = false;
last_key_.clear();
}
size_t BlockBuilder::CurrentSizeEstimate() const {
- return (buffer_.size() + // Raw data buffer
- restarts_.size() * sizeof(uint32_t) + // Restart array
- sizeof(uint32_t)); // Restart array length
+ return (buffer_.size() + // Raw data buffer
+ restarts_.size() * sizeof(uint32_t) + // Restart array
+ sizeof(uint32_t)); // Restart array length
}
Slice BlockBuilder::Finish() {
@@ -74,7 +73,7 @@ void BlockBuilder::Add(const Slice& key, const Slice& value) {
Slice last_key_piece(last_key_);
assert(!finished_);
assert(counter_ <= options_->block_restart_interval);
- assert(buffer_.empty() // No values yet?
+ assert(buffer_.empty() // No values yet?
|| options_->comparator->Compare(key, last_key_piece) > 0);
size_t shared = 0;
if (counter_ < options_->block_restart_interval) {
diff --git a/table/block_builder.h b/table/block_builder.h
index 4fbcb33..d0d9b6e 100644
--- a/table/block_builder.h
+++ b/table/block_builder.h
@@ -5,9 +5,10 @@
#ifndef STORAGE_LEVELDB_TABLE_BLOCK_BUILDER_H_
#define STORAGE_LEVELDB_TABLE_BLOCK_BUILDER_H_
+#include <stdint.h>
+
#include <vector>
-#include <stdint.h>
#include "leveldb/slice.h"
namespace leveldb {
@@ -35,17 +36,15 @@ class BlockBuilder {
size_t CurrentSizeEstimate() const;
// Return true iff no entries have been added since the last Reset()
- bool empty() const {
- return buffer_.empty();
- }
+ bool empty() const { return buffer_.empty(); }
private:
- const Options* options_;
- std::string buffer_; // Destination buffer
- std::vector<uint32_t> restarts_; // Restart points
- int counter_; // Number of entries emitted since restart
- bool finished_; // Has Finish() been called?
- std::string last_key_;
+ const Options* options_;
+ std::string buffer_; // Destination buffer
+ std::vector<uint32_t> restarts_; // Restart points
+ int counter_; // Number of entries emitted since restart
+ bool finished_; // Has Finish() been called?
+ std::string last_key_;
// No copying allowed
BlockBuilder(const BlockBuilder&);
diff --git a/table/filter_block.cc b/table/filter_block.cc
index ce0aa04..09ec009 100644
--- a/table/filter_block.cc
+++ b/table/filter_block.cc
@@ -16,8 +16,7 @@ static const size_t kFilterBaseLg = 11;
static const size_t kFilterBase = 1 << kFilterBaseLg;
FilterBlockBuilder::FilterBlockBuilder(const FilterPolicy* policy)
- : policy_(policy) {
-}
+ : policy_(policy) {}
void FilterBlockBuilder::StartBlock(uint64_t block_offset) {
uint64_t filter_index = (block_offset / kFilterBase);
@@ -62,7 +61,7 @@ void FilterBlockBuilder::GenerateFilter() {
tmp_keys_.resize(num_keys);
for (size_t i = 0; i < num_keys; i++) {
const char* base = keys_.data() + start_[i];
- size_t length = start_[i+1] - start_[i];
+ size_t length = start_[i + 1] - start_[i];
tmp_keys_[i] = Slice(base, length);
}
@@ -77,14 +76,10 @@ void FilterBlockBuilder::GenerateFilter() {
FilterBlockReader::FilterBlockReader(const FilterPolicy* policy,
const Slice& contents)
- : policy_(policy),
- data_(nullptr),
- offset_(nullptr),
- num_(0),
- base_lg_(0) {
+ : policy_(policy), data_(nullptr), offset_(nullptr), num_(0), base_lg_(0) {
size_t n = contents.size();
if (n < 5) return; // 1 byte for base_lg_ and 4 for start of offset array
- base_lg_ = contents[n-1];
+ base_lg_ = contents[n - 1];
uint32_t last_word = DecodeFixed32(contents.data() + n - 5);
if (last_word > n - 5) return;
data_ = contents.data();
@@ -95,8 +90,8 @@ FilterBlockReader::FilterBlockReader(const FilterPolicy* policy,
bool FilterBlockReader::KeyMayMatch(uint64_t block_offset, const Slice& key) {
uint64_t index = block_offset >> base_lg_;
if (index < num_) {
- uint32_t start = DecodeFixed32(offset_ + index*4);
- uint32_t limit = DecodeFixed32(offset_ + index*4 + 4);
+ uint32_t start = DecodeFixed32(offset_ + index * 4);
+ uint32_t limit = DecodeFixed32(offset_ + index * 4 + 4);
if (start <= limit && limit <= static_cast<size_t>(offset_ - data_)) {
Slice filter = Slice(data_ + start, limit - start);
return policy_->KeyMayMatch(key, filter);
@@ -108,4 +103,4 @@ bool FilterBlockReader::KeyMayMatch(uint64_t block_offset, const Slice& key) {
return true; // Errors are treated as potential matches
}
-}
+} // namespace leveldb
diff --git a/table/filter_block.h b/table/filter_block.h
index c67d010..1b034dc 100644
--- a/table/filter_block.h
+++ b/table/filter_block.h
@@ -11,8 +11,10 @@
#include <stddef.h>
#include <stdint.h>
+
#include <string>
#include <vector>
+
#include "leveldb/slice.h"
#include "util/hash.h"
@@ -38,10 +40,10 @@ class FilterBlockBuilder {
void GenerateFilter();
const FilterPolicy* policy_;
- std::string keys_; // Flattened key contents
- std::vector<size_t> start_; // Starting index in keys_ of each key
- std::string result_; // Filter data computed so far
- std::vector<Slice> tmp_keys_; // policy_->CreateFilter() argument
+ std::string keys_; // Flattened key contents
+ std::vector<size_t> start_; // Starting index in keys_ of each key
+ std::string result_; // Filter data computed so far
+ std::vector<Slice> tmp_keys_; // policy_->CreateFilter() argument
std::vector<uint32_t> filter_offsets_;
// No copying allowed
@@ -51,7 +53,7 @@ class FilterBlockBuilder {
class FilterBlockReader {
public:
- // REQUIRES: "contents" and *policy must stay live while *this is live.
+ // REQUIRES: "contents" and *policy must stay live while *this is live.
FilterBlockReader(const FilterPolicy* policy, const Slice& contents);
bool KeyMayMatch(uint64_t block_offset, const Slice& key);
@@ -63,6 +65,6 @@ class FilterBlockReader {
size_t base_lg_; // Encoding parameter (see kFilterBaseLg in .cc file)
};
-}
+} // namespace leveldb
#endif // STORAGE_LEVELDB_TABLE_FILTER_BLOCK_H_
diff --git a/table/filter_block_test.cc b/table/filter_block_test.cc
index 8c4a474..6cdd435 100644
--- a/table/filter_block_test.cc
+++ b/table/filter_block_test.cc
@@ -16,9 +16,7 @@ namespace leveldb {
// For testing: emit an array with one hash value per key
class TestHashFilter : public FilterPolicy {
public:
- virtual const char* Name() const {
- return "TestHashFilter";
- }
+ virtual const char* Name() const { return "TestHashFilter"; }
virtual void CreateFilter(const Slice* keys, int n, std::string* dst) const {
for (int i = 0; i < n; i++) {
@@ -69,8 +67,8 @@ TEST(FilterBlockTest, SingleChunk) {
ASSERT_TRUE(reader.KeyMayMatch(100, "box"));
ASSERT_TRUE(reader.KeyMayMatch(100, "hello"));
ASSERT_TRUE(reader.KeyMayMatch(100, "foo"));
- ASSERT_TRUE(! reader.KeyMayMatch(100, "missing"));
- ASSERT_TRUE(! reader.KeyMayMatch(100, "other"));
+ ASSERT_TRUE(!reader.KeyMayMatch(100, "missing"));
+ ASSERT_TRUE(!reader.KeyMayMatch(100, "other"));
}
TEST(FilterBlockTest, MultiChunk) {
@@ -99,30 +97,28 @@ TEST(FilterBlockTest, MultiChunk) {
// Check first filter
ASSERT_TRUE(reader.KeyMayMatch(0, "foo"));
ASSERT_TRUE(reader.KeyMayMatch(2000, "bar"));
- ASSERT_TRUE(! reader.KeyMayMatch(0, "box"));
- ASSERT_TRUE(! reader.KeyMayMatch(0, "hello"));
+ ASSERT_TRUE(!reader.KeyMayMatch(0, "box"));
+ ASSERT_TRUE(!reader.KeyMayMatch(0, "hello"));
// Check second filter
ASSERT_TRUE(reader.KeyMayMatch(3100, "box"));
- ASSERT_TRUE(! reader.KeyMayMatch(3100, "foo"));
- ASSERT_TRUE(! reader.KeyMayMatch(3100, "bar"));
- ASSERT_TRUE(! reader.KeyMayMatch(3100, "hello"));
+ ASSERT_TRUE(!reader.KeyMayMatch(3100, "foo"));
+ ASSERT_TRUE(!reader.KeyMayMatch(3100, "bar"));
+ ASSERT_TRUE(!reader.KeyMayMatch(3100, "hello"));
// Check third filter (empty)
- ASSERT_TRUE(! reader.KeyMayMatch(4100, "foo"));
- ASSERT_TRUE(! reader.KeyMayMatch(4100, "bar"));
- ASSERT_TRUE(! reader.KeyMayMatch(4100, "box"));
- ASSERT_TRUE(! reader.KeyMayMatch(4100, "hello"));
+ ASSERT_TRUE(!reader.KeyMayMatch(4100, "foo"));
+ ASSERT_TRUE(!reader.KeyMayMatch(4100, "bar"));
+ ASSERT_TRUE(!reader.KeyMayMatch(4100, "box"));
+ ASSERT_TRUE(!reader.KeyMayMatch(4100, "hello"));
// Check last filter
ASSERT_TRUE(reader.KeyMayMatch(9000, "box"));
ASSERT_TRUE(reader.KeyMayMatch(9000, "hello"));
- ASSERT_TRUE(! reader.KeyMayMatch(9000, "foo"));
- ASSERT_TRUE(! reader.KeyMayMatch(9000, "bar"));
+ ASSERT_TRUE(!reader.KeyMayMatch(9000, "foo"));
+ ASSERT_TRUE(!reader.KeyMayMatch(9000, "bar"));
}
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/table/format.cc b/table/format.cc
index 24e4e02..e183977 100644
--- a/table/format.cc
+++ b/table/format.cc
@@ -21,8 +21,7 @@ void BlockHandle::EncodeTo(std::string* dst) const {
}
Status BlockHandle::DecodeFrom(Slice* input) {
- if (GetVarint64(input, &offset_) &&
- GetVarint64(input, &size_)) {
+ if (GetVarint64(input, &offset_) && GetVarint64(input, &size_)) {
return Status::OK();
} else {
return Status::Corruption("bad block handle");
@@ -62,10 +61,8 @@ Status Footer::DecodeFrom(Slice* input) {
return result;
}
-Status ReadBlock(RandomAccessFile* file,
- const ReadOptions& options,
- const BlockHandle& handle,
- BlockContents* result) {
+Status ReadBlock(RandomAccessFile* file, const ReadOptions& options,
+ const BlockHandle& handle, BlockContents* result) {
result->data = Slice();
result->cachable = false;
result->heap_allocated = false;
@@ -86,7 +83,7 @@ Status ReadBlock(RandomAccessFile* file,
}
// Check the crc of the type and the block contents
- const char* data = contents.data(); // Pointer to where Read put the data
+ const char* data = contents.data(); // Pointer to where Read put the data
if (options.verify_checksums) {
const uint32_t crc = crc32c::Unmask(DecodeFixed32(data + n + 1));
const uint32_t actual = crc32c::Value(data, n + 1);
diff --git a/table/format.h b/table/format.h
index 144ff55..dacaa9f 100644
--- a/table/format.h
+++ b/table/format.h
@@ -5,8 +5,10 @@
#ifndef STORAGE_LEVELDB_TABLE_FORMAT_H_
#define STORAGE_LEVELDB_TABLE_FORMAT_H_
-#include <string>
#include <stdint.h>
+
+#include <string>
+
#include "leveldb/slice.h"
#include "leveldb/status.h"
#include "leveldb/table_builder.h"
@@ -46,19 +48,15 @@ class BlockHandle {
// end of every table file.
class Footer {
public:
- Footer() { }
+ Footer() {}
// The block handle for the metaindex block of the table
const BlockHandle& metaindex_handle() const { return metaindex_handle_; }
void set_metaindex_handle(const BlockHandle& h) { metaindex_handle_ = h; }
// The block handle for the index block of the table
- const BlockHandle& index_handle() const {
- return index_handle_;
- }
- void set_index_handle(const BlockHandle& h) {
- index_handle_ = h;
- }
+ const BlockHandle& index_handle() const { return index_handle_; }
+ void set_index_handle(const BlockHandle& h) { index_handle_ = h; }
void EncodeTo(std::string* dst) const;
Status DecodeFrom(Slice* input);
@@ -66,9 +64,7 @@ class Footer {
// Encoded length of a Footer. Note that the serialization of a
// Footer will always occupy exactly this many bytes. It consists
// of two block handles and a magic number.
- enum {
- kEncodedLength = 2*BlockHandle::kMaxEncodedLength + 8
- };
+ enum { kEncodedLength = 2 * BlockHandle::kMaxEncodedLength + 8 };
private:
BlockHandle metaindex_handle_;
@@ -91,17 +87,13 @@ struct BlockContents {
// Read the block identified by "handle" from "file". On failure
// return non-OK. On success fill *result and return OK.
-Status ReadBlock(RandomAccessFile* file,
- const ReadOptions& options,
- const BlockHandle& handle,
- BlockContents* result);
+Status ReadBlock(RandomAccessFile* file, const ReadOptions& options,
+ const BlockHandle& handle, BlockContents* result);
// Implementation details follow. Clients should ignore,
inline BlockHandle::BlockHandle()
- : offset_(~static_cast<uint64_t>(0)),
- size_(~static_cast<uint64_t>(0)) {
-}
+ : offset_(~static_cast<uint64_t>(0)), size_(~static_cast<uint64_t>(0)) {}
} // namespace leveldb
diff --git a/table/iterator.cc b/table/iterator.cc
index 41ec1aa..dfef083 100644
--- a/table/iterator.cc
+++ b/table/iterator.cc
@@ -14,7 +14,7 @@ Iterator::Iterator() {
Iterator::~Iterator() {
if (!cleanup_head_.IsEmpty()) {
cleanup_head_.Run();
- for (CleanupNode* node = cleanup_head_.next; node != nullptr; ) {
+ for (CleanupNode* node = cleanup_head_.next; node != nullptr;) {
node->Run();
CleanupNode* next_node = node->next;
delete node;
@@ -42,17 +42,23 @@ namespace {
class EmptyIterator : public Iterator {
public:
- EmptyIterator(const Status& s) : status_(s) { }
+ EmptyIterator(const Status& s) : status_(s) {}
~EmptyIterator() override = default;
bool Valid() const override { return false; }
- void Seek(const Slice& target) override { }
- void SeekToFirst() override { }
- void SeekToLast() override { }
+ void Seek(const Slice& target) override {}
+ void SeekToFirst() override {}
+ void SeekToLast() override {}
void Next() override { assert(false); }
void Prev() override { assert(false); }
- Slice key() const override { assert(false); return Slice(); }
- Slice value() const override { assert(false); return Slice(); }
+ Slice key() const override {
+ assert(false);
+ return Slice();
+ }
+ Slice value() const override {
+ assert(false);
+ return Slice();
+ }
Status status() const override { return status_; }
private:
@@ -61,9 +67,7 @@ class EmptyIterator : public Iterator {
} // anonymous namespace
-Iterator* NewEmptyIterator() {
- return new EmptyIterator(Status::OK());
-}
+Iterator* NewEmptyIterator() { return new EmptyIterator(Status::OK()); }
Iterator* NewErrorIterator(const Status& status) {
return new EmptyIterator(status);
diff --git a/table/iterator_wrapper.h b/table/iterator_wrapper.h
index f1814ca..c230572 100644
--- a/table/iterator_wrapper.h
+++ b/table/iterator_wrapper.h
@@ -16,10 +16,8 @@ namespace leveldb {
// cache locality.
class IteratorWrapper {
public:
- IteratorWrapper(): iter_(nullptr), valid_(false) { }
- explicit IteratorWrapper(Iterator* iter): iter_(nullptr) {
- Set(iter);
- }
+ IteratorWrapper() : iter_(nullptr), valid_(false) {}
+ explicit IteratorWrapper(Iterator* iter) : iter_(nullptr) { Set(iter); }
~IteratorWrapper() { delete iter_; }
Iterator* iter() const { return iter_; }
@@ -35,18 +33,46 @@ class IteratorWrapper {
}
}
-
// Iterator interface methods
- bool Valid() const { return valid_; }
- Slice key() const { assert(Valid()); return key_; }
- Slice value() const { assert(Valid()); return iter_->value(); }
+ bool Valid() const { return valid_; }
+ Slice key() const {
+ assert(Valid());
+ return key_;
+ }
+ Slice value() const {
+ assert(Valid());
+ return iter_->value();
+ }
// Methods below require iter() != nullptr
- Status status() const { assert(iter_); return iter_->status(); }
- void Next() { assert(iter_); iter_->Next(); Update(); }
- void Prev() { assert(iter_); iter_->Prev(); Update(); }
- void Seek(const Slice& k) { assert(iter_); iter_->Seek(k); Update(); }
- void SeekToFirst() { assert(iter_); iter_->SeekToFirst(); Update(); }
- void SeekToLast() { assert(iter_); iter_->SeekToLast(); Update(); }
+ Status status() const {
+ assert(iter_);
+ return iter_->status();
+ }
+ void Next() {
+ assert(iter_);
+ iter_->Next();
+ Update();
+ }
+ void Prev() {
+ assert(iter_);
+ iter_->Prev();
+ Update();
+ }
+ void Seek(const Slice& k) {
+ assert(iter_);
+ iter_->Seek(k);
+ Update();
+ }
+ void SeekToFirst() {
+ assert(iter_);
+ iter_->SeekToFirst();
+ Update();
+ }
+ void SeekToLast() {
+ assert(iter_);
+ iter_->SeekToLast();
+ Update();
+ }
private:
void Update() {
diff --git a/table/merger.cc b/table/merger.cc
index e079680..3a5c3e4 100644
--- a/table/merger.cc
+++ b/table/merger.cc
@@ -24,13 +24,9 @@ class MergingIterator : public Iterator {
}
}
- virtual ~MergingIterator() {
- delete[] children_;
- }
+ virtual ~MergingIterator() { delete[] children_; }
- virtual bool Valid() const {
- return (current_ != nullptr);
- }
+ virtual bool Valid() const { return (current_ != nullptr); }
virtual void SeekToFirst() {
for (int i = 0; i < n_; i++) {
@@ -145,10 +141,7 @@ class MergingIterator : public Iterator {
IteratorWrapper* current_;
// Which direction is the iterator moving?
- enum Direction {
- kForward,
- kReverse
- };
+ enum Direction { kForward, kReverse };
Direction direction_;
};
@@ -169,7 +162,7 @@ void MergingIterator::FindSmallest() {
void MergingIterator::FindLargest() {
IteratorWrapper* largest = nullptr;
- for (int i = n_-1; i >= 0; i--) {
+ for (int i = n_ - 1; i >= 0; i--) {
IteratorWrapper* child = &children_[i];
if (child->Valid()) {
if (largest == nullptr) {
@@ -183,14 +176,15 @@ void MergingIterator::FindLargest() {
}
} // namespace
-Iterator* NewMergingIterator(const Comparator* cmp, Iterator** list, int n) {
+Iterator* NewMergingIterator(const Comparator* comparator, Iterator** children,
+ int n) {
assert(n >= 0);
if (n == 0) {
return NewEmptyIterator();
} else if (n == 1) {
- return list[0];
+ return children[0];
} else {
- return new MergingIterator(cmp, list, n);
+ return new MergingIterator(comparator, children, n);
}
}
diff --git a/table/merger.h b/table/merger.h
index bafdf5a..41cedc5 100644
--- a/table/merger.h
+++ b/table/merger.h
@@ -18,8 +18,8 @@ class Iterator;
// key is present in K child iterators, it will be yielded K times.
//
// REQUIRES: n >= 0
-Iterator* NewMergingIterator(
- const Comparator* comparator, Iterator** children, int n);
+Iterator* NewMergingIterator(const Comparator* comparator, Iterator** children,
+ int n);
} // namespace leveldb
diff --git a/table/table.cc b/table/table.cc
index 8e737e1..b07bc88 100644
--- a/table/table.cc
+++ b/table/table.cc
@@ -20,7 +20,7 @@ namespace leveldb {
struct Table::Rep {
~Rep() {
delete filter;
- delete [] filter_data;
+ delete[] filter_data;
delete index_block;
}
@@ -35,10 +35,8 @@ struct Table::Rep {
Block* index_block;
};
-Status Table::Open(const Options& options,
- RandomAccessFile* file,
- uint64_t size,
- Table** table) {
+Status Table::Open(const Options& options, RandomAccessFile* file,
+ uint64_t size, Table** table) {
*table = nullptr;
if (size < Footer::kEncodedLength) {
return Status::Corruption("file is too short to be an sstable");
@@ -130,14 +128,12 @@ void Table::ReadFilter(const Slice& filter_handle_value) {
return;
}
if (block.heap_allocated) {
- rep_->filter_data = block.data.data(); // Will need to delete later
+ rep_->filter_data = block.data.data(); // Will need to delete later
}
rep_->filter = new FilterBlockReader(rep_->options.filter_policy, block.data);
}
-Table::~Table() {
- delete rep_;
-}
+Table::~Table() { delete rep_; }
static void DeleteBlock(void* arg, void* ignored) {
delete reinterpret_cast<Block*>(arg);
@@ -156,8 +152,7 @@ static void ReleaseBlock(void* arg, void* h) {
// Convert an index iterator value (i.e., an encoded BlockHandle)
// into an iterator over the contents of the corresponding block.
-Iterator* Table::BlockReader(void* arg,
- const ReadOptions& options,
+Iterator* Table::BlockReader(void* arg, const ReadOptions& options,
const Slice& index_value) {
Table* table = reinterpret_cast<Table*>(arg);
Cache* block_cache = table->rep_->options.block_cache;
@@ -175,7 +170,7 @@ Iterator* Table::BlockReader(void* arg,
if (block_cache != nullptr) {
char cache_key_buffer[16];
EncodeFixed64(cache_key_buffer, table->rep_->cache_id);
- EncodeFixed64(cache_key_buffer+8, handle.offset());
+ EncodeFixed64(cache_key_buffer + 8, handle.offset());
Slice key(cache_key_buffer, sizeof(cache_key_buffer));
cache_handle = block_cache->Lookup(key);
if (cache_handle != nullptr) {
@@ -185,8 +180,8 @@ Iterator* Table::BlockReader(void* arg,
if (s.ok()) {
block = new Block(contents);
if (contents.cachable && options.fill_cache) {
- cache_handle = block_cache->Insert(
- key, block, block->size(), &DeleteCachedBlock);
+ cache_handle = block_cache->Insert(key, block, block->size(),
+ &DeleteCachedBlock);
}
}
}
@@ -218,9 +213,9 @@ Iterator* Table::NewIterator(const ReadOptions& options) const {
&Table::BlockReader, const_cast<Table*>(this), options);
}
-Status Table::InternalGet(const ReadOptions& options, const Slice& k,
- void* arg,
- void (*saver)(void*, const Slice&, const Slice&)) {
+Status Table::InternalGet(const ReadOptions& options, const Slice& k, void* arg,
+ void (*handle_result)(void*, const Slice&,
+ const Slice&)) {
Status s;
Iterator* iiter = rep_->index_block->NewIterator(rep_->options.comparator);
iiter->Seek(k);
@@ -228,15 +223,14 @@ Status Table::InternalGet(const ReadOptions& options, const Slice& k,
Slice handle_value = iiter->value();
FilterBlockReader* filter = rep_->filter;
BlockHandle handle;
- if (filter != nullptr &&
- handle.DecodeFrom(&handle_value).ok() &&
+ if (filter != nullptr && handle.DecodeFrom(&handle_value).ok() &&
!filter->KeyMayMatch(handle.offset(), k)) {
// Not found
} else {
Iterator* block_iter = BlockReader(this, options, iiter->value());
block_iter->Seek(k);
if (block_iter->Valid()) {
- (*saver)(arg, block_iter->key(), block_iter->value());
+ (*handle_result)(arg, block_iter->key(), block_iter->value());
}
s = block_iter->status();
delete block_iter;
@@ -249,7 +243,6 @@ Status Table::InternalGet(const ReadOptions& options, const Slice& k,
return s;
}
-
uint64_t Table::ApproximateOffsetOf(const Slice& key) const {
Iterator* index_iter =
rep_->index_block->NewIterator(rep_->options.comparator);
diff --git a/table/table_builder.cc b/table/table_builder.cc
index 444d4f9..9afff76 100644
--- a/table/table_builder.cc
+++ b/table/table_builder.cc
@@ -5,6 +5,7 @@
#include "leveldb/table_builder.h"
#include <assert.h>
+
#include "leveldb/comparator.h"
#include "leveldb/env.h"
#include "leveldb/filter_policy.h"
@@ -27,7 +28,7 @@ struct TableBuilder::Rep {
BlockBuilder index_block;
std::string last_key;
int64_t num_entries;
- bool closed; // Either Finish() or Abandon() has been called.
+ bool closed; // Either Finish() or Abandon() has been called.
FilterBlockBuilder* filter_block;
// We do not emit the index entry for a block until we have seen the
@@ -53,8 +54,9 @@ struct TableBuilder::Rep {
index_block(&index_block_options),
num_entries(0),
closed(false),
- filter_block(opt.filter_policy == nullptr ? nullptr
- : new FilterBlockBuilder(opt.filter_policy)),
+ filter_block(opt.filter_policy == nullptr
+ ? nullptr
+ : new FilterBlockBuilder(opt.filter_policy)),
pending_index_entry(false) {
index_block_options.block_restart_interval = 1;
}
@@ -173,8 +175,7 @@ void TableBuilder::WriteBlock(BlockBuilder* block, BlockHandle* handle) {
}
void TableBuilder::WriteRawBlock(const Slice& block_contents,
- CompressionType type,
- BlockHandle* handle) {
+ CompressionType type, BlockHandle* handle) {
Rep* r = rep_;
handle->set_offset(r->offset);
handle->set_size(block_contents.size());
@@ -184,7 +185,7 @@ void TableBuilder::WriteRawBlock(const Slice& block_contents,
trailer[0] = type;
uint32_t crc = crc32c::Value(block_contents.data(), block_contents.size());
crc = crc32c::Extend(crc, trailer, 1); // Extend crc to cover block type
- EncodeFixed32(trailer+1, crc32c::Mask(crc));
+ EncodeFixed32(trailer + 1, crc32c::Mask(crc));
r->status = r->file->Append(Slice(trailer, kBlockTrailerSize));
if (r->status.ok()) {
r->offset += block_contents.size() + kBlockTrailerSize;
@@ -192,9 +193,7 @@ void TableBuilder::WriteRawBlock(const Slice& block_contents,
}
}
-Status TableBuilder::status() const {
- return rep_->status;
-}
+Status TableBuilder::status() const { return rep_->status; }
Status TableBuilder::Finish() {
Rep* r = rep_;
@@ -259,12 +258,8 @@ void TableBuilder::Abandon() {
r->closed = true;
}
-uint64_t TableBuilder::NumEntries() const {
- return rep_->num_entries;
-}
+uint64_t TableBuilder::NumEntries() const { return rep_->num_entries; }
-uint64_t TableBuilder::FileSize() const {
- return rep_->offset;
-}
+uint64_t TableBuilder::FileSize() const { return rep_->offset; }
} // namespace leveldb
diff --git a/table/table_test.cc b/table/table_test.cc
index 5573be6..0974052 100644
--- a/table/table_test.cc
+++ b/table/table_test.cc
@@ -6,6 +6,7 @@
#include <map>
#include <string>
+
#include "db/dbformat.h"
#include "db/memtable.h"
#include "db/write_batch_internal.h"
@@ -27,8 +28,8 @@ namespace leveldb {
static std::string Reverse(const Slice& key) {
std::string str(key.ToString());
std::string rev("");
- for (std::string::reverse_iterator rit = str.rbegin();
- rit != str.rend(); ++rit) {
+ for (std::string::reverse_iterator rit = str.rbegin(); rit != str.rend();
+ ++rit) {
rev.push_back(*rit);
}
return rev;
@@ -45,9 +46,8 @@ class ReverseKeyComparator : public Comparator {
return BytewiseComparator()->Compare(Reverse(a), Reverse(b));
}
- virtual void FindShortestSeparator(
- std::string* start,
- const Slice& limit) const {
+ virtual void FindShortestSeparator(std::string* start,
+ const Slice& limit) const {
std::string s = Reverse(*start);
std::string l = Reverse(limit);
BytewiseComparator()->FindShortestSeparator(&s, l);
@@ -79,17 +79,17 @@ namespace {
struct STLLessThan {
const Comparator* cmp;
- STLLessThan() : cmp(BytewiseComparator()) { }
- STLLessThan(const Comparator* c) : cmp(c) { }
+ STLLessThan() : cmp(BytewiseComparator()) {}
+ STLLessThan(const Comparator* c) : cmp(c) {}
bool operator()(const std::string& a, const std::string& b) const {
return cmp->Compare(Slice(a), Slice(b)) < 0;
}
};
} // namespace
-class StringSink: public WritableFile {
+class StringSink : public WritableFile {
public:
- ~StringSink() { }
+ ~StringSink() {}
const std::string& contents() const { return contents_; }
@@ -106,19 +106,17 @@ class StringSink: public WritableFile {
std::string contents_;
};
-
-class StringSource: public RandomAccessFile {
+class StringSource : public RandomAccessFile {
public:
StringSource(const Slice& contents)
- : contents_(contents.data(), contents.size()) {
- }
+ : contents_(contents.data(), contents.size()) {}
- virtual ~StringSource() { }
+ virtual ~StringSource() {}
uint64_t Size() const { return contents_.size(); }
virtual Status Read(uint64_t offset, size_t n, Slice* result,
- char* scratch) const {
+ char* scratch) const {
if (offset >= contents_.size()) {
return Status::InvalidArgument("invalid Read offset");
}
@@ -140,8 +138,8 @@ typedef std::map<std::string, std::string, STLLessThan> KVMap;
// BlockBuilder/TableBuilder and Block/Table.
class Constructor {
public:
- explicit Constructor(const Comparator* cmp) : data_(STLLessThan(cmp)) { }
- virtual ~Constructor() { }
+ explicit Constructor(const Comparator* cmp) : data_(STLLessThan(cmp)) {}
+ virtual ~Constructor() {}
void Add(const std::string& key, const Slice& value) {
data_[key] = value.ToString();
@@ -150,14 +148,11 @@ class Constructor {
// Finish constructing the data structure with all the keys that have
// been added so far. Returns the keys in sorted order in "*keys"
// and stores the key/value pairs in "*kvmap"
- void Finish(const Options& options,
- std::vector<std::string>* keys,
+ void Finish(const Options& options, std::vector<std::string>* keys,
KVMap* kvmap) {
*kvmap = data_;
keys->clear();
- for (KVMap::const_iterator it = data_.begin();
- it != data_.end();
- ++it) {
+ for (KVMap::const_iterator it = data_.begin(); it != data_.end(); ++it) {
keys->push_back(it->first);
}
data_.clear();
@@ -178,23 +173,17 @@ class Constructor {
KVMap data_;
};
-class BlockConstructor: public Constructor {
+class BlockConstructor : public Constructor {
public:
explicit BlockConstructor(const Comparator* cmp)
- : Constructor(cmp),
- comparator_(cmp),
- block_(nullptr) { }
- ~BlockConstructor() {
- delete block_;
- }
+ : Constructor(cmp), comparator_(cmp), block_(nullptr) {}
+ ~BlockConstructor() { delete block_; }
virtual Status FinishImpl(const Options& options, const KVMap& data) {
delete block_;
block_ = nullptr;
BlockBuilder builder(&options);
- for (KVMap::const_iterator it = data.begin();
- it != data.end();
- ++it) {
+ for (KVMap::const_iterator it = data.begin(); it != data.end(); ++it) {
builder.Add(it->first, it->second);
}
// Open the block
@@ -218,23 +207,17 @@ class BlockConstructor: public Constructor {
BlockConstructor();
};
-class TableConstructor: public Constructor {
+class TableConstructor : public Constructor {
public:
TableConstructor(const Comparator* cmp)
- : Constructor(cmp),
- source_(nullptr), table_(nullptr) {
- }
- ~TableConstructor() {
- Reset();
- }
+ : Constructor(cmp), source_(nullptr), table_(nullptr) {}
+ ~TableConstructor() { Reset(); }
virtual Status FinishImpl(const Options& options, const KVMap& data) {
Reset();
StringSink sink;
TableBuilder builder(options, &sink);
- for (KVMap::const_iterator it = data.begin();
- it != data.end();
- ++it) {
+ for (KVMap::const_iterator it = data.begin(); it != data.end(); ++it) {
builder.Add(it->first, it->second);
ASSERT_TRUE(builder.status().ok());
}
@@ -273,9 +256,9 @@ class TableConstructor: public Constructor {
};
// A helper class that converts internal format keys into user keys
-class KeyConvertingIterator: public Iterator {
+class KeyConvertingIterator : public Iterator {
public:
- explicit KeyConvertingIterator(Iterator* iter) : iter_(iter) { }
+ explicit KeyConvertingIterator(Iterator* iter) : iter_(iter) {}
virtual ~KeyConvertingIterator() { delete iter_; }
virtual bool Valid() const { return iter_->Valid(); }
virtual void Seek(const Slice& target) {
@@ -313,25 +296,20 @@ class KeyConvertingIterator: public Iterator {
void operator=(const KeyConvertingIterator&);
};
-class MemTableConstructor: public Constructor {
+class MemTableConstructor : public Constructor {
public:
explicit MemTableConstructor(const Comparator* cmp)
- : Constructor(cmp),
- internal_comparator_(cmp) {
+ : Constructor(cmp), internal_comparator_(cmp) {
memtable_ = new MemTable(internal_comparator_);
memtable_->Ref();
}
- ~MemTableConstructor() {
- memtable_->Unref();
- }
+ ~MemTableConstructor() { memtable_->Unref(); }
virtual Status FinishImpl(const Options& options, const KVMap& data) {
memtable_->Unref();
memtable_ = new MemTable(internal_comparator_);
memtable_->Ref();
int seq = 1;
- for (KVMap::const_iterator it = data.begin();
- it != data.end();
- ++it) {
+ for (KVMap::const_iterator it = data.begin(); it != data.end(); ++it) {
memtable_->Add(seq, kTypeValue, it->first, it->second);
seq++;
}
@@ -346,24 +324,19 @@ class MemTableConstructor: public Constructor {
MemTable* memtable_;
};
-class DBConstructor: public Constructor {
+class DBConstructor : public Constructor {
public:
explicit DBConstructor(const Comparator* cmp)
- : Constructor(cmp),
- comparator_(cmp) {
+ : Constructor(cmp), comparator_(cmp) {
db_ = nullptr;
NewDB();
}
- ~DBConstructor() {
- delete db_;
- }
+ ~DBConstructor() { delete db_; }
virtual Status FinishImpl(const Options& options, const KVMap& data) {
delete db_;
db_ = nullptr;
NewDB();
- for (KVMap::const_iterator it = data.begin();
- it != data.end();
- ++it) {
+ for (KVMap::const_iterator it = data.begin(); it != data.end(); ++it) {
WriteBatch batch;
batch.Put(it->first, it->second);
ASSERT_TRUE(db_->Write(WriteOptions(), &batch).ok());
@@ -396,12 +369,7 @@ class DBConstructor: public Constructor {
DB* db_;
};
-enum TestType {
- TABLE_TEST,
- BLOCK_TEST,
- MEMTABLE_TEST,
- DB_TEST
-};
+enum TestType { TABLE_TEST, BLOCK_TEST, MEMTABLE_TEST, DB_TEST };
struct TestArgs {
TestType type;
@@ -410,33 +378,33 @@ struct TestArgs {
};
static const TestArgs kTestArgList[] = {
- { TABLE_TEST, false, 16 },
- { TABLE_TEST, false, 1 },
- { TABLE_TEST, false, 1024 },
- { TABLE_TEST, true, 16 },
- { TABLE_TEST, true, 1 },
- { TABLE_TEST, true, 1024 },
-
- { BLOCK_TEST, false, 16 },
- { BLOCK_TEST, false, 1 },
- { BLOCK_TEST, false, 1024 },
- { BLOCK_TEST, true, 16 },
- { BLOCK_TEST, true, 1 },
- { BLOCK_TEST, true, 1024 },
-
- // Restart interval does not matter for memtables
- { MEMTABLE_TEST, false, 16 },
- { MEMTABLE_TEST, true, 16 },
-
- // Do not bother with restart interval variations for DB
- { DB_TEST, false, 16 },
- { DB_TEST, true, 16 },
+ {TABLE_TEST, false, 16},
+ {TABLE_TEST, false, 1},
+ {TABLE_TEST, false, 1024},
+ {TABLE_TEST, true, 16},
+ {TABLE_TEST, true, 1},
+ {TABLE_TEST, true, 1024},
+
+ {BLOCK_TEST, false, 16},
+ {BLOCK_TEST, false, 1},
+ {BLOCK_TEST, false, 1024},
+ {BLOCK_TEST, true, 16},
+ {BLOCK_TEST, true, 1},
+ {BLOCK_TEST, true, 1024},
+
+ // Restart interval does not matter for memtables
+ {MEMTABLE_TEST, false, 16},
+ {MEMTABLE_TEST, true, 16},
+
+ // Do not bother with restart interval variations for DB
+ {DB_TEST, false, 16},
+ {DB_TEST, true, 16},
};
static const int kNumTestArgs = sizeof(kTestArgList) / sizeof(kTestArgList[0]);
class Harness {
public:
- Harness() : constructor_(nullptr) { }
+ Harness() : constructor_(nullptr) {}
void Init(const TestArgs& args) {
delete constructor_;
@@ -466,9 +434,7 @@ class Harness {
}
}
- ~Harness() {
- delete constructor_;
- }
+ ~Harness() { delete constructor_; }
void Add(const std::string& key, const std::string& value) {
constructor_->Add(key, value);
@@ -490,8 +456,7 @@ class Harness {
ASSERT_TRUE(!iter->Valid());
iter->SeekToFirst();
for (KVMap::const_iterator model_iter = data.begin();
- model_iter != data.end();
- ++model_iter) {
+ model_iter != data.end(); ++model_iter) {
ASSERT_EQ(ToString(data, model_iter), ToString(iter));
iter->Next();
}
@@ -505,8 +470,7 @@ class Harness {
ASSERT_TRUE(!iter->Valid());
iter->SeekToLast();
for (KVMap::const_reverse_iterator model_iter = data.rbegin();
- model_iter != data.rend();
- ++model_iter) {
+ model_iter != data.rend(); ++model_iter) {
ASSERT_EQ(ToString(data, model_iter), ToString(iter));
iter->Prev();
}
@@ -514,8 +478,7 @@ class Harness {
delete iter;
}
- void TestRandomAccess(Random* rnd,
- const std::vector<std::string>& keys,
+ void TestRandomAccess(Random* rnd, const std::vector<std::string>& keys,
const KVMap& data) {
static const bool kVerbose = false;
Iterator* iter = constructor_->NewIterator();
@@ -546,8 +509,8 @@ class Harness {
case 2: {
std::string key = PickRandomKey(rnd, keys);
model_iter = data.lower_bound(key);
- if (kVerbose) fprintf(stderr, "Seek '%s'\n",
- EscapeString(key).c_str());
+ if (kVerbose)
+ fprintf(stderr, "Seek '%s'\n", EscapeString(key).c_str());
iter->Seek(Slice(key));
ASSERT_EQ(ToString(data, model_iter), ToString(iter));
break;
@@ -558,7 +521,7 @@ class Harness {
if (kVerbose) fprintf(stderr, "Prev\n");
iter->Prev();
if (model_iter == data.begin()) {
- model_iter = data.end(); // Wrap around to invalid value
+ model_iter = data.end(); // Wrap around to invalid value
} else {
--model_iter;
}
@@ -621,8 +584,8 @@ class Harness {
break;
case 1: {
// Attempt to return something smaller than an existing key
- if (result.size() > 0 && result[result.size()-1] > '\0') {
- result[result.size()-1]--;
+ if (!result.empty() && result[result.size() - 1] > '\0') {
+ result[result.size() - 1]--;
}
break;
}
@@ -720,8 +683,8 @@ TEST(Harness, Randomized) {
for (int num_entries = 0; num_entries < 2000;
num_entries += (num_entries < 50 ? 1 : 200)) {
if ((num_entries % 10) == 0) {
- fprintf(stderr, "case %d of %d: num_entries = %d\n",
- (i + 1), int(kNumTestArgs), num_entries);
+ fprintf(stderr, "case %d of %d: num_entries = %d\n", (i + 1),
+ int(kNumTestArgs), num_entries);
}
for (int e = 0; e < num_entries; e++) {
std::string v;
@@ -735,7 +698,7 @@ TEST(Harness, Randomized) {
TEST(Harness, RandomizedLongDB) {
Random rnd(test::RandomSeed());
- TestArgs args = { DB_TEST, false, 16 };
+ TestArgs args = {DB_TEST, false, 16};
Init(args);
int num_entries = 100000;
for (int e = 0; e < num_entries; e++) {
@@ -757,7 +720,7 @@ TEST(Harness, RandomizedLongDB) {
ASSERT_GT(files, 0);
}
-class MemTableTest { };
+class MemTableTest {};
TEST(MemTableTest, Simple) {
InternalKeyComparator cmp(BytewiseComparator());
@@ -774,8 +737,7 @@ TEST(MemTableTest, Simple) {
Iterator* iter = memtable->NewIterator();
iter->SeekToFirst();
while (iter->Valid()) {
- fprintf(stderr, "key: '%s' -> '%s'\n",
- iter->key().ToString().c_str(),
+ fprintf(stderr, "key: '%s' -> '%s'\n", iter->key().ToString().c_str(),
iter->value().ToString().c_str());
iter->Next();
}
@@ -788,14 +750,13 @@ static bool Between(uint64_t val, uint64_t low, uint64_t high) {
bool result = (val >= low) && (val <= high);
if (!result) {
fprintf(stderr, "Value %llu is not in range [%llu, %llu]\n",
- (unsigned long long)(val),
- (unsigned long long)(low),
+ (unsigned long long)(val), (unsigned long long)(low),
(unsigned long long)(high));
}
return result;
}
-class TableTest { };
+class TableTest {};
TEST(TableTest, ApproximateOffsetOfPlain) {
TableConstructor c(BytewiseComparator());
@@ -813,18 +774,17 @@ TEST(TableTest, ApproximateOffsetOfPlain) {
options.compression = kNoCompression;
c.Finish(options, &keys, &kvmap);
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("abc"), 0, 0));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k01"), 0, 0));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k01a"), 0, 0));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k02"), 0, 0));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k03"), 0, 0));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k04"), 10000, 11000));
+ ASSERT_TRUE(Between(c.ApproximateOffsetOf("abc"), 0, 0));
+ ASSERT_TRUE(Between(c.ApproximateOffsetOf("k01"), 0, 0));
+ ASSERT_TRUE(Between(c.ApproximateOffsetOf("k01a"), 0, 0));
+ ASSERT_TRUE(Between(c.ApproximateOffsetOf("k02"), 0, 0));
+ ASSERT_TRUE(Between(c.ApproximateOffsetOf("k03"), 0, 0));
+ ASSERT_TRUE(Between(c.ApproximateOffsetOf("k04"), 10000, 11000));
ASSERT_TRUE(Between(c.ApproximateOffsetOf("k04a"), 210000, 211000));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k05"), 210000, 211000));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k06"), 510000, 511000));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("k07"), 510000, 511000));
- ASSERT_TRUE(Between(c.ApproximateOffsetOf("xyz"), 610000, 612000));
-
+ ASSERT_TRUE(Between(c.ApproximateOffsetOf("k05"), 210000, 211000));
+ ASSERT_TRUE(Between(c.ApproximateOffsetOf("k06"), 510000, 511000));
+ ASSERT_TRUE(Between(c.ApproximateOffsetOf("k07"), 510000, 511000));
+ ASSERT_TRUE(Between(c.ApproximateOffsetOf("xyz"), 610000, 612000));
}
static bool SnappyCompressionSupported() {
@@ -855,7 +815,7 @@ TEST(TableTest, ApproximateOffsetOfCompressed) {
// Expected upper and lower bounds of space used by compressible strings.
static const int kSlop = 1000; // Compressor effectiveness varies.
- const int expected = 2500; // 10000 * compression ratio (0.25)
+ const int expected = 2500; // 10000 * compression ratio (0.25)
const int min_z = expected - kSlop;
const int max_z = expected + kSlop;
@@ -871,6 +831,4 @@ TEST(TableTest, ApproximateOffsetOfCompressed) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/table/two_level_iterator.cc b/table/two_level_iterator.cc
index 4e6f420..5340a4d 100644
--- a/table/two_level_iterator.cc
+++ b/table/two_level_iterator.cc
@@ -15,13 +15,10 @@ namespace {
typedef Iterator* (*BlockFunction)(void*, const ReadOptions&, const Slice&);
-class TwoLevelIterator: public Iterator {
+class TwoLevelIterator : public Iterator {
public:
- TwoLevelIterator(
- Iterator* index_iter,
- BlockFunction block_function,
- void* arg,
- const ReadOptions& options);
+ TwoLevelIterator(Iterator* index_iter, BlockFunction block_function,
+ void* arg, const ReadOptions& options);
virtual ~TwoLevelIterator();
@@ -31,9 +28,7 @@ class TwoLevelIterator: public Iterator {
virtual void Next();
virtual void Prev();
- virtual bool Valid() const {
- return data_iter_.Valid();
- }
+ virtual bool Valid() const { return data_iter_.Valid(); }
virtual Slice key() const {
assert(Valid());
return data_iter_.key();
@@ -67,26 +62,22 @@ class TwoLevelIterator: public Iterator {
const ReadOptions options_;
Status status_;
IteratorWrapper index_iter_;
- IteratorWrapper data_iter_; // May be nullptr
+ IteratorWrapper data_iter_; // May be nullptr
// If data_iter_ is non-null, then "data_block_handle_" holds the
// "index_value" passed to block_function_ to create the data_iter_.
std::string data_block_handle_;
};
-TwoLevelIterator::TwoLevelIterator(
- Iterator* index_iter,
- BlockFunction block_function,
- void* arg,
- const ReadOptions& options)
+TwoLevelIterator::TwoLevelIterator(Iterator* index_iter,
+ BlockFunction block_function, void* arg,
+ const ReadOptions& options)
: block_function_(block_function),
arg_(arg),
options_(options),
index_iter_(index_iter),
- data_iter_(nullptr) {
-}
+ data_iter_(nullptr) {}
-TwoLevelIterator::~TwoLevelIterator() {
-}
+TwoLevelIterator::~TwoLevelIterator() {}
void TwoLevelIterator::Seek(const Slice& target) {
index_iter_.Seek(target);
@@ -121,7 +112,6 @@ void TwoLevelIterator::Prev() {
SkipEmptyDataBlocksBackward();
}
-
void TwoLevelIterator::SkipEmptyDataBlocksForward() {
while (data_iter_.iter() == nullptr || !data_iter_.Valid()) {
// Move to next block
@@ -158,7 +148,8 @@ void TwoLevelIterator::InitDataBlock() {
SetDataIterator(nullptr);
} else {
Slice handle = index_iter_.value();
- if (data_iter_.iter() != nullptr && handle.compare(data_block_handle_) == 0) {
+ if (data_iter_.iter() != nullptr &&
+ handle.compare(data_block_handle_) == 0) {
// data_iter_ is already constructed with this iterator, so
// no need to change anything
} else {
@@ -171,11 +162,9 @@ void TwoLevelIterator::InitDataBlock() {
} // namespace
-Iterator* NewTwoLevelIterator(
- Iterator* index_iter,
- BlockFunction block_function,
- void* arg,
- const ReadOptions& options) {
+Iterator* NewTwoLevelIterator(Iterator* index_iter,
+ BlockFunction block_function, void* arg,
+ const ReadOptions& options) {
return new TwoLevelIterator(index_iter, block_function, arg, options);
}
diff --git a/table/two_level_iterator.h b/table/two_level_iterator.h
index a93ba89..81ffe80 100644
--- a/table/two_level_iterator.h
+++ b/table/two_level_iterator.h
@@ -22,12 +22,9 @@ struct ReadOptions;
// an iterator over the contents of the corresponding block.
Iterator* NewTwoLevelIterator(
Iterator* index_iter,
- Iterator* (*block_function)(
- void* arg,
- const ReadOptions& options,
- const Slice& index_value),
- void* arg,
- const ReadOptions& options);
+ Iterator* (*block_function)(void* arg, const ReadOptions& options,
+ const Slice& index_value),
+ void* arg, const ReadOptions& options);
} // namespace leveldb
diff --git a/util/arena.cc b/util/arena.cc
index a496ad0..eadec8a 100644
--- a/util/arena.cc
+++ b/util/arena.cc
@@ -39,8 +39,9 @@ char* Arena::AllocateFallback(size_t bytes) {
char* Arena::AllocateAligned(size_t bytes) {
const int align = (sizeof(void*) > 8) ? sizeof(void*) : 8;
- assert((align & (align-1)) == 0); // Pointer size should be a power of 2
- size_t current_mod = reinterpret_cast<uintptr_t>(alloc_ptr_) & (align-1);
+ static_assert((align & (align - 1)) == 0,
+ "Pointer size should be a power of 2");
+ size_t current_mod = reinterpret_cast<uintptr_t>(alloc_ptr_) & (align - 1);
size_t slop = (current_mod == 0 ? 0 : align - current_mod);
size_t needed = bytes + slop;
char* result;
@@ -52,7 +53,7 @@ char* Arena::AllocateAligned(size_t bytes) {
// AllocateFallback always returned aligned memory
result = AllocateFallback(bytes);
}
- assert((reinterpret_cast<uintptr_t>(result) & (align-1)) == 0);
+ assert((reinterpret_cast<uintptr_t>(result) & (align - 1)) == 0);
return result;
}
diff --git a/util/arena_test.cc b/util/arena_test.cc
index 58e870e..f34095c 100644
--- a/util/arena_test.cc
+++ b/util/arena_test.cc
@@ -9,11 +9,9 @@
namespace leveldb {
-class ArenaTest { };
+class ArenaTest {};
-TEST(ArenaTest, Empty) {
- Arena arena;
-}
+TEST(ArenaTest, Empty) { Arena arena; }
TEST(ArenaTest, Simple) {
std::vector<std::pair<size_t, char*> > allocated;
@@ -26,8 +24,9 @@ TEST(ArenaTest, Simple) {
if (i % (N / 10) == 0) {
s = i;
} else {
- s = rnd.OneIn(4000) ? rnd.Uniform(6000) :
- (rnd.OneIn(10) ? rnd.Uniform(100) : rnd.Uniform(20));
+ s = rnd.OneIn(4000)
+ ? rnd.Uniform(6000)
+ : (rnd.OneIn(10) ? rnd.Uniform(100) : rnd.Uniform(20));
}
if (s == 0) {
// Our arena disallows size 0 allocations.
@@ -47,7 +46,7 @@ TEST(ArenaTest, Simple) {
bytes += s;
allocated.push_back(std::make_pair(s, r));
ASSERT_GE(arena.MemoryUsage(), bytes);
- if (i > N/10) {
+ if (i > N / 10) {
ASSERT_LE(arena.MemoryUsage(), bytes * 1.10);
}
}
@@ -63,6 +62,4 @@ TEST(ArenaTest, Simple) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/util/bloom.cc b/util/bloom.cc
index bf3e4ca..097ce7a 100644
--- a/util/bloom.cc
+++ b/util/bloom.cc
@@ -20,17 +20,14 @@ class BloomFilterPolicy : public FilterPolicy {
size_t k_;
public:
- explicit BloomFilterPolicy(int bits_per_key)
- : bits_per_key_(bits_per_key) {
+ explicit BloomFilterPolicy(int bits_per_key) : bits_per_key_(bits_per_key) {
// We intentionally round down to reduce probing cost a little bit
k_ = static_cast<size_t>(bits_per_key * 0.69); // 0.69 =~ ln(2)
if (k_ < 1) k_ = 1;
if (k_ > 30) k_ = 30;
}
- virtual const char* Name() const {
- return "leveldb.BuiltinBloomFilter2";
- }
+ virtual const char* Name() const { return "leveldb.BuiltinBloomFilter2"; }
virtual void CreateFilter(const Slice* keys, int n, std::string* dst) const {
// Compute bloom filter size (in both bits and bytes)
@@ -54,7 +51,7 @@ class BloomFilterPolicy : public FilterPolicy {
const uint32_t delta = (h >> 17) | (h << 15); // Rotate right 17 bits
for (size_t j = 0; j < k_; j++) {
const uint32_t bitpos = h % bits;
- array[bitpos/8] |= (1 << (bitpos % 8));
+ array[bitpos / 8] |= (1 << (bitpos % 8));
h += delta;
}
}
@@ -69,7 +66,7 @@ class BloomFilterPolicy : public FilterPolicy {
// Use the encoded k so that we can read filters generated by
// bloom filters created using different parameters.
- const size_t k = array[len-1];
+ const size_t k = array[len - 1];
if (k > 30) {
// Reserved for potentially new encodings for short bloom filters.
// Consider it a match.
@@ -80,13 +77,13 @@ class BloomFilterPolicy : public FilterPolicy {
const uint32_t delta = (h >> 17) | (h << 15); // Rotate right 17 bits
for (size_t j = 0; j < k; j++) {
const uint32_t bitpos = h % bits;
- if ((array[bitpos/8] & (1 << (bitpos % 8))) == 0) return false;
+ if ((array[bitpos / 8] & (1 << (bitpos % 8))) == 0) return false;
h += delta;
}
return true;
}
};
-}
+} // namespace
const FilterPolicy* NewBloomFilterPolicy(int bits_per_key) {
return new BloomFilterPolicy(bits_per_key);
diff --git a/util/bloom_test.cc b/util/bloom_test.cc
index 1b87a2b..71c4115 100644
--- a/util/bloom_test.cc
+++ b/util/bloom_test.cc
@@ -25,20 +25,16 @@ class BloomTest {
std::vector<std::string> keys_;
public:
- BloomTest() : policy_(NewBloomFilterPolicy(10)) { }
+ BloomTest() : policy_(NewBloomFilterPolicy(10)) {}
- ~BloomTest() {
- delete policy_;
- }
+ ~BloomTest() { delete policy_; }
void Reset() {
keys_.clear();
filter_.clear();
}
- void Add(const Slice& s) {
- keys_.push_back(s.ToString());
- }
+ void Add(const Slice& s) { keys_.push_back(s.ToString()); }
void Build() {
std::vector<Slice> key_slices;
@@ -52,16 +48,14 @@ class BloomTest {
if (kVerbose >= 2) DumpFilter();
}
- size_t FilterSize() const {
- return filter_.size();
- }
+ size_t FilterSize() const { return filter_.size(); }
void DumpFilter() {
fprintf(stderr, "F(");
- for (size_t i = 0; i+1 < filter_.size(); i++) {
+ for (size_t i = 0; i + 1 < filter_.size(); i++) {
const unsigned int c = static_cast<unsigned int>(filter_[i]);
for (int j = 0; j < 8; j++) {
- fprintf(stderr, "%c", (c & (1 <<j)) ? '1' : '.');
+ fprintf(stderr, "%c", (c & (1 << j)) ? '1' : '.');
}
}
fprintf(stderr, ")\n");
@@ -87,8 +81,8 @@ class BloomTest {
};
TEST(BloomTest, EmptyFilter) {
- ASSERT_TRUE(! Matches("hello"));
- ASSERT_TRUE(! Matches("world"));
+ ASSERT_TRUE(!Matches("hello"));
+ ASSERT_TRUE(!Matches("world"));
}
TEST(BloomTest, Small) {
@@ -96,8 +90,8 @@ TEST(BloomTest, Small) {
Add("world");
ASSERT_TRUE(Matches("hello"));
ASSERT_TRUE(Matches("world"));
- ASSERT_TRUE(! Matches("x"));
- ASSERT_TRUE(! Matches("foo"));
+ ASSERT_TRUE(!Matches("x"));
+ ASSERT_TRUE(!Matches("foo"));
}
static int NextLength(int length) {
@@ -140,23 +134,23 @@ TEST(BloomTest, VaryingLengths) {
double rate = FalsePositiveRate();
if (kVerbose >= 1) {
fprintf(stderr, "False positives: %5.2f%% @ length = %6d ; bytes = %6d\n",
- rate*100.0, length, static_cast<int>(FilterSize()));
+ rate * 100.0, length, static_cast<int>(FilterSize()));
}
- ASSERT_LE(rate, 0.02); // Must not be over 2%
- if (rate > 0.0125) mediocre_filters++; // Allowed, but not too often
- else good_filters++;
+ ASSERT_LE(rate, 0.02); // Must not be over 2%
+ if (rate > 0.0125)
+ mediocre_filters++; // Allowed, but not too often
+ else
+ good_filters++;
}
if (kVerbose >= 1) {
- fprintf(stderr, "Filters: %d good, %d mediocre\n",
- good_filters, mediocre_filters);
+ fprintf(stderr, "Filters: %d good, %d mediocre\n", good_filters,
+ mediocre_filters);
}
- ASSERT_LE(mediocre_filters, good_filters/5);
+ ASSERT_LE(mediocre_filters, good_filters / 5);
}
// Different bits-per-byte
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/util/cache.cc b/util/cache.cc
index 25b51b5..0f801cc 100644
--- a/util/cache.cc
+++ b/util/cache.cc
@@ -14,8 +14,7 @@
namespace leveldb {
-Cache::~Cache() {
-}
+Cache::~Cache() {}
namespace {
@@ -46,12 +45,12 @@ struct LRUHandle {
LRUHandle* next_hash;
LRUHandle* next;
LRUHandle* prev;
- size_t charge; // TODO(opt): Only allow uint32_t?
+ size_t charge; // TODO(opt): Only allow uint32_t?
size_t key_length;
- bool in_cache; // Whether entry is in the cache.
- uint32_t refs; // References, including cache reference, if present.
- uint32_t hash; // Hash of key(); used for fast sharding and comparisons
- char key_data[1]; // Beginning of key
+ bool in_cache; // Whether entry is in the cache.
+ uint32_t refs; // References, including cache reference, if present.
+ uint32_t hash; // Hash of key(); used for fast sharding and comparisons
+ char key_data[1]; // Beginning of key
Slice key() const {
// next_ is only equal to this if the LRU handle is the list head of an
@@ -114,8 +113,7 @@ class HandleTable {
// pointer to the trailing slot in the corresponding linked list.
LRUHandle** FindPointer(const Slice& key, uint32_t hash) {
LRUHandle** ptr = &list_[hash & (length_ - 1)];
- while (*ptr != nullptr &&
- ((*ptr)->hash != hash || key != (*ptr)->key())) {
+ while (*ptr != nullptr && ((*ptr)->hash != hash || key != (*ptr)->key())) {
ptr = &(*ptr)->next_hash;
}
return ptr;
@@ -158,8 +156,8 @@ class LRUCache {
void SetCapacity(size_t capacity) { capacity_ = capacity; }
// Like Cache methods, but with an extra "hash" parameter.
- Cache::Handle* Insert(const Slice& key, uint32_t hash,
- void* value, size_t charge,
+ Cache::Handle* Insert(const Slice& key, uint32_t hash, void* value,
+ size_t charge,
void (*deleter)(const Slice& key, void* value));
Cache::Handle* Lookup(const Slice& key, uint32_t hash);
void Release(Cache::Handle* handle);
@@ -172,7 +170,7 @@ class LRUCache {
private:
void LRU_Remove(LRUHandle* e);
- void LRU_Append(LRUHandle*list, LRUHandle* e);
+ void LRU_Append(LRUHandle* list, LRUHandle* e);
void Ref(LRUHandle* e);
void Unref(LRUHandle* e);
bool FinishErase(LRUHandle* e) EXCLUSIVE_LOCKS_REQUIRED(mutex_);
@@ -206,7 +204,7 @@ LRUCache::LRUCache() : capacity_(0), usage_(0) {
LRUCache::~LRUCache() {
assert(in_use_.next == &in_use_); // Error if caller has an unreleased handle
- for (LRUHandle* e = lru_.next; e != &lru_; ) {
+ for (LRUHandle* e = lru_.next; e != &lru_;) {
LRUHandle* next = e->next;
assert(e->in_cache);
e->in_cache = false;
@@ -265,13 +263,14 @@ void LRUCache::Release(Cache::Handle* handle) {
Unref(reinterpret_cast<LRUHandle*>(handle));
}
-Cache::Handle* LRUCache::Insert(
- const Slice& key, uint32_t hash, void* value, size_t charge,
- void (*deleter)(const Slice& key, void* value)) {
+Cache::Handle* LRUCache::Insert(const Slice& key, uint32_t hash, void* value,
+ size_t charge,
+ void (*deleter)(const Slice& key,
+ void* value)) {
MutexLock l(&mutex_);
- LRUHandle* e = reinterpret_cast<LRUHandle*>(
- malloc(sizeof(LRUHandle)-1 + key.size()));
+ LRUHandle* e =
+ reinterpret_cast<LRUHandle*>(malloc(sizeof(LRUHandle) - 1 + key.size()));
e->value = value;
e->deleter = deleter;
e->charge = charge;
@@ -346,19 +345,16 @@ class ShardedLRUCache : public Cache {
return Hash(s.data(), s.size(), 0);
}
- static uint32_t Shard(uint32_t hash) {
- return hash >> (32 - kNumShardBits);
- }
+ static uint32_t Shard(uint32_t hash) { return hash >> (32 - kNumShardBits); }
public:
- explicit ShardedLRUCache(size_t capacity)
- : last_id_(0) {
+ explicit ShardedLRUCache(size_t capacity) : last_id_(0) {
const size_t per_shard = (capacity + (kNumShards - 1)) / kNumShards;
for (int s = 0; s < kNumShards; s++) {
shard_[s].SetCapacity(per_shard);
}
}
- virtual ~ShardedLRUCache() { }
+ virtual ~ShardedLRUCache() {}
virtual Handle* Insert(const Slice& key, void* value, size_t charge,
void (*deleter)(const Slice& key, void* value)) {
const uint32_t hash = HashSlice(key);
@@ -399,8 +395,6 @@ class ShardedLRUCache : public Cache {
} // end anonymous namespace
-Cache* NewLRUCache(size_t capacity) {
- return new ShardedLRUCache(capacity);
-}
+Cache* NewLRUCache(size_t capacity) { return new ShardedLRUCache(capacity); }
} // namespace leveldb
diff --git a/util/cache_test.cc b/util/cache_test.cc
index 8647feb..d5c1a1d 100644
--- a/util/cache_test.cc
+++ b/util/cache_test.cc
@@ -37,13 +37,9 @@ class CacheTest {
std::vector<int> deleted_values_;
Cache* cache_;
- CacheTest() : cache_(NewLRUCache(kCacheSize)) {
- current_ = this;
- }
+ CacheTest() : cache_(NewLRUCache(kCacheSize)) { current_ = this; }
- ~CacheTest() {
- delete cache_;
- }
+ ~CacheTest() { delete cache_; }
int Lookup(int key) {
Cache::Handle* handle = cache_->Lookup(EncodeKey(key));
@@ -64,9 +60,7 @@ class CacheTest {
&CacheTest::Deleter);
}
- void Erase(int key) {
- cache_->Erase(EncodeKey(key));
- }
+ void Erase(int key) { cache_->Erase(EncodeKey(key)); }
};
CacheTest* CacheTest::current_;
@@ -75,18 +69,18 @@ TEST(CacheTest, HitAndMiss) {
Insert(100, 101);
ASSERT_EQ(101, Lookup(100));
- ASSERT_EQ(-1, Lookup(200));
- ASSERT_EQ(-1, Lookup(300));
+ ASSERT_EQ(-1, Lookup(200));
+ ASSERT_EQ(-1, Lookup(300));
Insert(200, 201);
ASSERT_EQ(101, Lookup(100));
ASSERT_EQ(201, Lookup(200));
- ASSERT_EQ(-1, Lookup(300));
+ ASSERT_EQ(-1, Lookup(300));
Insert(100, 102);
ASSERT_EQ(102, Lookup(100));
ASSERT_EQ(201, Lookup(200));
- ASSERT_EQ(-1, Lookup(300));
+ ASSERT_EQ(-1, Lookup(300));
ASSERT_EQ(1, deleted_keys_.size());
ASSERT_EQ(100, deleted_keys_[0]);
@@ -100,14 +94,14 @@ TEST(CacheTest, Erase) {
Insert(100, 101);
Insert(200, 201);
Erase(100);
- ASSERT_EQ(-1, Lookup(100));
+ ASSERT_EQ(-1, Lookup(100));
ASSERT_EQ(201, Lookup(200));
ASSERT_EQ(1, deleted_keys_.size());
ASSERT_EQ(100, deleted_keys_[0]);
ASSERT_EQ(101, deleted_values_[0]);
Erase(100);
- ASSERT_EQ(-1, Lookup(100));
+ ASSERT_EQ(-1, Lookup(100));
ASSERT_EQ(201, Lookup(200));
ASSERT_EQ(1, deleted_keys_.size());
}
@@ -146,8 +140,8 @@ TEST(CacheTest, EvictionPolicy) {
// Frequently used entry must be kept around,
// as must things that are still in use.
for (int i = 0; i < kCacheSize + 100; i++) {
- Insert(1000+i, 2000+i);
- ASSERT_EQ(2000+i, Lookup(1000+i));
+ Insert(1000 + i, 2000 + i);
+ ASSERT_EQ(2000 + i, Lookup(1000 + i));
ASSERT_EQ(101, Lookup(100));
}
ASSERT_EQ(101, Lookup(100));
@@ -160,12 +154,12 @@ TEST(CacheTest, UseExceedsCacheSize) {
// Overfill the cache, keeping handles on all inserted entries.
std::vector<Cache::Handle*> h;
for (int i = 0; i < kCacheSize + 100; i++) {
- h.push_back(InsertAndReturnHandle(1000+i, 2000+i));
+ h.push_back(InsertAndReturnHandle(1000 + i, 2000 + i));
}
// Check that all the entries can be found in the cache.
for (int i = 0; i < h.size(); i++) {
- ASSERT_EQ(2000+i, Lookup(1000+i));
+ ASSERT_EQ(2000 + i, Lookup(1000 + i));
}
for (int i = 0; i < h.size(); i++) {
@@ -181,9 +175,9 @@ TEST(CacheTest, HeavyEntries) {
const int kHeavy = 10;
int added = 0;
int index = 0;
- while (added < 2*kCacheSize) {
+ while (added < 2 * kCacheSize) {
const int weight = (index & 1) ? kLight : kHeavy;
- Insert(index, 1000+index, weight);
+ Insert(index, 1000 + index, weight);
added += weight;
index++;
}
@@ -194,10 +188,10 @@ TEST(CacheTest, HeavyEntries) {
int r = Lookup(i);
if (r >= 0) {
cached_weight += weight;
- ASSERT_EQ(1000+i, r);
+ ASSERT_EQ(1000 + i, r);
}
}
- ASSERT_LE(cached_weight, kCacheSize + kCacheSize/10);
+ ASSERT_LE(cached_weight, kCacheSize + kCacheSize / 10);
}
TEST(CacheTest, NewId) {
@@ -229,6 +223,4 @@ TEST(CacheTest, ZeroSizeCache) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/util/coding.cc b/util/coding.cc
index 1a9e333..e2089df 100644
--- a/util/coding.cc
+++ b/util/coding.cc
@@ -6,29 +6,29 @@
namespace leveldb {
-void EncodeFixed32(char* buf, uint32_t value) {
+void EncodeFixed32(char* dst, uint32_t value) {
if (port::kLittleEndian) {
- memcpy(buf, &value, sizeof(value));
+ memcpy(dst, &value, sizeof(value));
} else {
- buf[0] = value & 0xff;
- buf[1] = (value >> 8) & 0xff;
- buf[2] = (value >> 16) & 0xff;
- buf[3] = (value >> 24) & 0xff;
+ dst[0] = value & 0xff;
+ dst[1] = (value >> 8) & 0xff;
+ dst[2] = (value >> 16) & 0xff;
+ dst[3] = (value >> 24) & 0xff;
}
}
-void EncodeFixed64(char* buf, uint64_t value) {
+void EncodeFixed64(char* dst, uint64_t value) {
if (port::kLittleEndian) {
- memcpy(buf, &value, sizeof(value));
+ memcpy(dst, &value, sizeof(value));
} else {
- buf[0] = value & 0xff;
- buf[1] = (value >> 8) & 0xff;
- buf[2] = (value >> 16) & 0xff;
- buf[3] = (value >> 24) & 0xff;
- buf[4] = (value >> 32) & 0xff;
- buf[5] = (value >> 40) & 0xff;
- buf[6] = (value >> 48) & 0xff;
- buf[7] = (value >> 56) & 0xff;
+ dst[0] = value & 0xff;
+ dst[1] = (value >> 8) & 0xff;
+ dst[2] = (value >> 16) & 0xff;
+ dst[3] = (value >> 24) & 0xff;
+ dst[4] = (value >> 32) & 0xff;
+ dst[5] = (value >> 40) & 0xff;
+ dst[6] = (value >> 48) & 0xff;
+ dst[7] = (value >> 56) & 0xff;
}
}
@@ -48,26 +48,26 @@ char* EncodeVarint32(char* dst, uint32_t v) {
// Operate on characters as unsigneds
unsigned char* ptr = reinterpret_cast<unsigned char*>(dst);
static const int B = 128;
- if (v < (1<<7)) {
+ if (v < (1 << 7)) {
*(ptr++) = v;
- } else if (v < (1<<14)) {
+ } else if (v < (1 << 14)) {
*(ptr++) = v | B;
- *(ptr++) = v>>7;
- } else if (v < (1<<21)) {
+ *(ptr++) = v >> 7;
+ } else if (v < (1 << 21)) {
*(ptr++) = v | B;
- *(ptr++) = (v>>7) | B;
- *(ptr++) = v>>14;
- } else if (v < (1<<28)) {
+ *(ptr++) = (v >> 7) | B;
+ *(ptr++) = v >> 14;
+ } else if (v < (1 << 28)) {
*(ptr++) = v | B;
- *(ptr++) = (v>>7) | B;
- *(ptr++) = (v>>14) | B;
- *(ptr++) = v>>21;
+ *(ptr++) = (v >> 7) | B;
+ *(ptr++) = (v >> 14) | B;
+ *(ptr++) = v >> 21;
} else {
*(ptr++) = v | B;
- *(ptr++) = (v>>7) | B;
- *(ptr++) = (v>>14) | B;
- *(ptr++) = (v>>21) | B;
- *(ptr++) = v>>28;
+ *(ptr++) = (v >> 7) | B;
+ *(ptr++) = (v >> 14) | B;
+ *(ptr++) = (v >> 21) | B;
+ *(ptr++) = v >> 28;
}
return reinterpret_cast<char*>(ptr);
}
@@ -109,8 +109,7 @@ int VarintLength(uint64_t v) {
return len;
}
-const char* GetVarint32PtrFallback(const char* p,
- const char* limit,
+const char* GetVarint32PtrFallback(const char* p, const char* limit,
uint32_t* value) {
uint32_t result = 0;
for (uint32_t shift = 0; shift <= 28 && p < limit; shift += 7) {
@@ -181,8 +180,7 @@ const char* GetLengthPrefixedSlice(const char* p, const char* limit,
bool GetLengthPrefixedSlice(Slice* input, Slice* result) {
uint32_t len;
- if (GetVarint32(input, &len) &&
- input->size() >= len) {
+ if (GetVarint32(input, &len) && input->size() >= len) {
*result = Slice(input->data(), len);
input->remove_prefix(len);
return true;
diff --git a/util/coding.h b/util/coding.h
index f0fa2cb..d9eeaa3 100644
--- a/util/coding.h
+++ b/util/coding.h
@@ -64,10 +64,10 @@ inline uint32_t DecodeFixed32(const char* ptr) {
memcpy(&result, ptr, sizeof(result)); // gcc optimizes this to a plain load
return result;
} else {
- return ((static_cast<uint32_t>(static_cast<unsigned char>(ptr[0])))
- | (static_cast<uint32_t>(static_cast<unsigned char>(ptr[1])) << 8)
- | (static_cast<uint32_t>(static_cast<unsigned char>(ptr[2])) << 16)
- | (static_cast<uint32_t>(static_cast<unsigned char>(ptr[3])) << 24));
+ return ((static_cast<uint32_t>(static_cast<unsigned char>(ptr[0]))) |
+ (static_cast<uint32_t>(static_cast<unsigned char>(ptr[1])) << 8) |
+ (static_cast<uint32_t>(static_cast<unsigned char>(ptr[2])) << 16) |
+ (static_cast<uint32_t>(static_cast<unsigned char>(ptr[3])) << 24));
}
}
@@ -85,11 +85,9 @@ inline uint64_t DecodeFixed64(const char* ptr) {
}
// Internal routine for use by fallback path of GetVarint32Ptr
-const char* GetVarint32PtrFallback(const char* p,
- const char* limit,
+const char* GetVarint32PtrFallback(const char* p, const char* limit,
uint32_t* value);
-inline const char* GetVarint32Ptr(const char* p,
- const char* limit,
+inline const char* GetVarint32Ptr(const char* p, const char* limit,
uint32_t* value) {
if (p < limit) {
uint32_t result = *(reinterpret_cast<const unsigned char*>(p));
diff --git a/util/coding_test.cc b/util/coding_test.cc
index d315e19..0d2a0c5 100644
--- a/util/coding_test.cc
+++ b/util/coding_test.cc
@@ -9,7 +9,7 @@
namespace leveldb {
-class Coding { };
+class Coding {};
TEST(Coding, Fixed32) {
std::string s;
@@ -39,15 +39,15 @@ TEST(Coding, Fixed64) {
uint64_t v = static_cast<uint64_t>(1) << power;
uint64_t actual;
actual = DecodeFixed64(p);
- ASSERT_EQ(v-1, actual);
+ ASSERT_EQ(v - 1, actual);
p += sizeof(uint64_t);
actual = DecodeFixed64(p);
- ASSERT_EQ(v+0, actual);
+ ASSERT_EQ(v + 0, actual);
p += sizeof(uint64_t);
actual = DecodeFixed64(p);
- ASSERT_EQ(v+1, actual);
+ ASSERT_EQ(v + 1, actual);
p += sizeof(uint64_t);
}
}
@@ -108,8 +108,8 @@ TEST(Coding, Varint64) {
// Test values near powers of two
const uint64_t power = 1ull << k;
values.push_back(power);
- values.push_back(power-1);
- values.push_back(power+1);
+ values.push_back(power - 1);
+ values.push_back(power + 1);
}
std::string s;
@@ -134,8 +134,8 @@ TEST(Coding, Varint64) {
TEST(Coding, Varint32Overflow) {
uint32_t result;
std::string input("\x81\x82\x83\x84\x85\x11");
- ASSERT_TRUE(GetVarint32Ptr(input.data(), input.data() + input.size(), &result)
- == nullptr);
+ ASSERT_TRUE(GetVarint32Ptr(input.data(), input.data() + input.size(),
+ &result) == nullptr);
}
TEST(Coding, Varint32Truncation) {
@@ -146,16 +146,16 @@ TEST(Coding, Varint32Truncation) {
for (size_t len = 0; len < s.size() - 1; len++) {
ASSERT_TRUE(GetVarint32Ptr(s.data(), s.data() + len, &result) == nullptr);
}
- ASSERT_TRUE(
- GetVarint32Ptr(s.data(), s.data() + s.size(), &result) != nullptr);
+ ASSERT_TRUE(GetVarint32Ptr(s.data(), s.data() + s.size(), &result) !=
+ nullptr);
ASSERT_EQ(large_value, result);
}
TEST(Coding, Varint64Overflow) {
uint64_t result;
std::string input("\x81\x82\x83\x84\x85\x81\x82\x83\x84\x85\x11");
- ASSERT_TRUE(GetVarint64Ptr(input.data(), input.data() + input.size(), &result)
- == nullptr);
+ ASSERT_TRUE(GetVarint64Ptr(input.data(), input.data() + input.size(),
+ &result) == nullptr);
}
TEST(Coding, Varint64Truncation) {
@@ -166,8 +166,8 @@ TEST(Coding, Varint64Truncation) {
for (size_t len = 0; len < s.size() - 1; len++) {
ASSERT_TRUE(GetVarint64Ptr(s.data(), s.data() + len, &result) == nullptr);
}
- ASSERT_TRUE(
- GetVarint64Ptr(s.data(), s.data() + s.size(), &result) != nullptr);
+ ASSERT_TRUE(GetVarint64Ptr(s.data(), s.data() + s.size(), &result) !=
+ nullptr);
ASSERT_EQ(large_value, result);
}
@@ -193,6 +193,4 @@ TEST(Coding, Strings) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/util/comparator.cc b/util/comparator.cc
index e1e2963..26d1eb3 100644
--- a/util/comparator.cc
+++ b/util/comparator.cc
@@ -13,24 +13,21 @@
namespace leveldb {
-Comparator::~Comparator() { }
+Comparator::~Comparator() {}
namespace {
class BytewiseComparatorImpl : public Comparator {
public:
- BytewiseComparatorImpl() { }
+ BytewiseComparatorImpl() {}
- virtual const char* Name() const {
- return "leveldb.BytewiseComparator";
- }
+ virtual const char* Name() const { return "leveldb.BytewiseComparator"; }
virtual int Compare(const Slice& a, const Slice& b) const {
return a.compare(b);
}
- virtual void FindShortestSeparator(
- std::string* start,
- const Slice& limit) const {
+ virtual void FindShortestSeparator(std::string* start,
+ const Slice& limit) const {
// Find length of common prefix
size_t min_length = std::min(start->size(), limit.size());
size_t diff_index = 0;
@@ -59,7 +56,7 @@ class BytewiseComparatorImpl : public Comparator {
const uint8_t byte = (*key)[i];
if (byte != static_cast<uint8_t>(0xff)) {
(*key)[i] = byte + 1;
- key->resize(i+1);
+ key->resize(i + 1);
return;
}
}
diff --git a/util/crc32c.cc b/util/crc32c.cc
index 4f1d80f..c2e61f7 100644
--- a/util/crc32c.cc
+++ b/util/crc32c.cc
@@ -256,8 +256,8 @@ inline uint32_t ReadUint32LE(const uint8_t* buffer) {
template <int N>
constexpr inline const uint8_t* RoundUp(const uint8_t* pointer) {
return reinterpret_cast<uint8_t*>(
- (reinterpret_cast<uintptr_t>(pointer) + (N - 1))
- & ~static_cast<uintptr_t>(N - 1));
+ (reinterpret_cast<uintptr_t>(pointer) + (N - 1)) &
+ ~static_cast<uintptr_t>(N - 1));
}
} // namespace
@@ -273,14 +273,14 @@ static bool CanAccelerateCRC32C() {
return port::AcceleratedCRC32C(0, kTestCRCBuffer, kBufSize) == kTestCRCValue;
}
-uint32_t Extend(uint32_t crc, const char* buf, size_t size) {
+uint32_t Extend(uint32_t crc, const char* data, size_t n) {
static bool accelerate = CanAccelerateCRC32C();
if (accelerate) {
- return port::AcceleratedCRC32C(crc, buf, size);
+ return port::AcceleratedCRC32C(crc, data, n);
}
- const uint8_t* p = reinterpret_cast<const uint8_t*>(buf);
- const uint8_t* e = p + size;
+ const uint8_t* p = reinterpret_cast<const uint8_t*>(data);
+ const uint8_t* e = p + n;
uint32_t l = crc ^ kCRC32Xor;
// Process one byte at a time.
diff --git a/util/crc32c.h b/util/crc32c.h
index 7864688..98fabb0 100644
--- a/util/crc32c.h
+++ b/util/crc32c.h
@@ -17,9 +17,7 @@ namespace crc32c {
uint32_t Extend(uint32_t init_crc, const char* data, size_t n);
// Return the crc32c of data[0,n-1]
-inline uint32_t Value(const char* data, size_t n) {
- return Extend(0, data, n);
-}
+inline uint32_t Value(const char* data, size_t n) { return Extend(0, data, n); }
static const uint32_t kMaskDelta = 0xa282ead8ul;
diff --git a/util/crc32c_test.cc b/util/crc32c_test.cc
index 4b957ee..dbd2ba4 100644
--- a/util/crc32c_test.cc
+++ b/util/crc32c_test.cc
@@ -8,7 +8,7 @@
namespace leveldb {
namespace crc32c {
-class CRC { };
+class CRC {};
TEST(CRC, StandardResults) {
// From rfc3720 section B.4.
@@ -31,29 +31,18 @@ TEST(CRC, StandardResults) {
ASSERT_EQ(0x113fdb5c, Value(buf, sizeof(buf)));
unsigned char data[48] = {
- 0x01, 0xc0, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x14, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x04, 0x00,
- 0x00, 0x00, 0x00, 0x14,
- 0x00, 0x00, 0x00, 0x18,
- 0x28, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x02, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
+ 0x01, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00,
+ 0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x18, 0x28, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
ASSERT_EQ(0xd9963a56, Value(reinterpret_cast<char*>(data), sizeof(data)));
}
-TEST(CRC, Values) {
- ASSERT_NE(Value("a", 1), Value("foo", 3));
-}
+TEST(CRC, Values) { ASSERT_NE(Value("a", 1), Value("foo", 3)); }
TEST(CRC, Extend) {
- ASSERT_EQ(Value("hello world", 11),
- Extend(Value("hello ", 6), "world", 5));
+ ASSERT_EQ(Value("hello world", 11), Extend(Value("hello ", 6), "world", 5));
}
TEST(CRC, Mask) {
@@ -67,6 +56,4 @@ TEST(CRC, Mask) {
} // namespace crc32c
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/util/env.cc b/util/env.cc
index 40a1363..6cd5f2e 100644
--- a/util/env.cc
+++ b/util/env.cc
@@ -6,27 +6,21 @@
namespace leveldb {
-Env::~Env() {
-}
+Env::~Env() {}
Status Env::NewAppendableFile(const std::string& fname, WritableFile** result) {
return Status::NotSupported("NewAppendableFile", fname);
}
-SequentialFile::~SequentialFile() {
-}
+SequentialFile::~SequentialFile() {}
-RandomAccessFile::~RandomAccessFile() {
-}
+RandomAccessFile::~RandomAccessFile() {}
-WritableFile::~WritableFile() {
-}
+WritableFile::~WritableFile() {}
-Logger::~Logger() {
-}
+Logger::~Logger() {}
-FileLock::~FileLock() {
-}
+FileLock::~FileLock() {}
void Log(Logger* info_log, const char* format, ...) {
if (info_log != nullptr) {
@@ -38,8 +32,7 @@ void Log(Logger* info_log, const char* format, ...) {
}
static Status DoWriteStringToFile(Env* env, const Slice& data,
- const std::string& fname,
- bool should_sync) {
+ const std::string& fname, bool should_sync) {
WritableFile* file;
Status s = env->NewWritableFile(fname, &file);
if (!s.ok()) {
@@ -94,7 +87,6 @@ Status ReadFileToString(Env* env, const std::string& fname, std::string* data) {
return s;
}
-EnvWrapper::~EnvWrapper() {
-}
+EnvWrapper::~EnvWrapper() {}
} // namespace leveldb
diff --git a/util/env_posix.cc b/util/env_posix.cc
index 362adb3..8c74f5a 100644
--- a/util/env_posix.cc
+++ b/util/env_posix.cc
@@ -32,8 +32,8 @@
#include "leveldb/status.h"
#include "port/port.h"
#include "port/thread_annotations.h"
-#include "util/posix_logger.h"
#include "util/env_posix_test_helper.h"
+#include "util/posix_logger.h"
namespace leveldb {
@@ -76,8 +76,7 @@ class Limiter {
int old_acquires_allowed =
acquires_allowed_.fetch_sub(1, std::memory_order_relaxed);
- if (old_acquires_allowed > 0)
- return true;
+ if (old_acquires_allowed > 0) return true;
acquires_allowed_.fetch_add(1, std::memory_order_relaxed);
return false;
@@ -85,9 +84,7 @@ class Limiter {
// Release a resource acquired by a previous call to Acquire() that returned
// true.
- void Release() {
- acquires_allowed_.fetch_add(1, std::memory_order_relaxed);
- }
+ void Release() { acquires_allowed_.fetch_add(1, std::memory_order_relaxed); }
private:
// The number of available resources.
@@ -193,7 +190,7 @@ class PosixRandomAccessFile final : public RandomAccessFile {
private:
const bool has_permanent_fd_; // If false, the file is opened on every read.
- const int fd_; // -1 if has_permanent_fd_ is false.
+ const int fd_; // -1 if has_permanent_fd_ is false.
Limiter* const fd_limiter_;
const std::string filename_;
};
@@ -214,7 +211,9 @@ class PosixMmapReadableFile final : public RandomAccessFile {
// instance is destroyed.
PosixMmapReadableFile(std::string filename, char* mmap_base, size_t length,
Limiter* mmap_limiter)
- : mmap_base_(mmap_base), length_(length), mmap_limiter_(mmap_limiter),
+ : mmap_base_(mmap_base),
+ length_(length),
+ mmap_limiter_(mmap_limiter),
filename_(std::move(filename)) {}
~PosixMmapReadableFile() override {
@@ -243,8 +242,11 @@ class PosixMmapReadableFile final : public RandomAccessFile {
class PosixWritableFile final : public WritableFile {
public:
PosixWritableFile(std::string filename, int fd)
- : pos_(0), fd_(fd), is_manifest_(IsManifest(filename)),
- filename_(std::move(filename)), dirname_(Dirname(filename_)) {}
+ : pos_(0),
+ fd_(fd),
+ is_manifest_(IsManifest(filename)),
+ filename_(std::move(filename)),
+ dirname_(Dirname(filename_)) {}
~PosixWritableFile() override {
if (fd_ >= 0) {
@@ -292,9 +294,7 @@ class PosixWritableFile final : public WritableFile {
return status;
}
- Status Flush() override {
- return FlushBuffer();
- }
+ Status Flush() override { return FlushBuffer(); }
Status Sync() override {
// Ensure new files referred to by the manifest are in the filesystem.
@@ -517,12 +517,12 @@ class PosixEnv : public Env {
uint64_t file_size;
Status status = GetFileSize(filename, &file_size);
if (status.ok()) {
- void* mmap_base = ::mmap(/*addr=*/nullptr, file_size, PROT_READ,
- MAP_SHARED, fd, 0);
+ void* mmap_base =
+ ::mmap(/*addr=*/nullptr, file_size, PROT_READ, MAP_SHARED, fd, 0);
if (mmap_base != MAP_FAILED) {
- *result = new PosixMmapReadableFile(
- filename, reinterpret_cast<char*>(mmap_base), file_size,
- &mmap_limiter_);
+ *result = new PosixMmapReadableFile(filename,
+ reinterpret_cast<char*>(mmap_base),
+ file_size, &mmap_limiter_);
} else {
status = PosixError(filename, errno);
}
@@ -691,9 +691,7 @@ class PosixEnv : public Env {
return static_cast<uint64_t>(tv.tv_sec) * kUsecondsPerSecond + tv.tv_usec;
}
- void SleepForMicroseconds(int micros) override {
- ::usleep(micros);
- }
+ void SleepForMicroseconds(int micros) override { ::usleep(micros); }
private:
void BackgroundThreadMain();
@@ -712,11 +710,10 @@ class PosixEnv : public Env {
explicit BackgroundWorkItem(void (*function)(void* arg), void* arg)
: function(function), arg(arg) {}
- void (* const function)(void*);
+ void (*const function)(void*);
void* const arg;
};
-
port::Mutex background_work_mutex_;
port::CondVar background_work_cv_ GUARDED_BY(background_work_mutex_);
bool started_background_thread_ GUARDED_BY(background_work_mutex_);
@@ -726,13 +723,11 @@ class PosixEnv : public Env {
PosixLockTable locks_; // Thread-safe.
Limiter mmap_limiter_; // Thread-safe.
- Limiter fd_limiter_; // Thread-safe.
+ Limiter fd_limiter_; // Thread-safe.
};
// Return the maximum number of concurrent mmaps.
-int MaxMmaps() {
- return g_mmap_limit;
-}
+int MaxMmaps() { return g_mmap_limit; }
// Return the maximum number of read-only files to keep open.
int MaxOpenFiles() {
@@ -758,8 +753,7 @@ PosixEnv::PosixEnv()
: background_work_cv_(&background_work_mutex_),
started_background_thread_(false),
mmap_limiter_(MaxMmaps()),
- fd_limiter_(MaxOpenFiles()) {
-}
+ fd_limiter_(MaxOpenFiles()) {}
void PosixEnv::Schedule(
void (*background_work_function)(void* background_work_arg),
@@ -792,8 +786,7 @@ void PosixEnv::BackgroundThreadMain() {
}
assert(!background_work_queue_.empty());
- auto background_work_function =
- background_work_queue_.front().function;
+ auto background_work_function = background_work_queue_.front().function;
void* background_work_arg = background_work_queue_.front().arg;
background_work_queue_.pop();
@@ -816,7 +809,7 @@ namespace {
// static PlatformSingletonEnv default_env;
// return default_env.env();
// }
-template<typename EnvType>
+template <typename EnvType>
class SingletonEnv {
public:
SingletonEnv() {
@@ -851,7 +844,7 @@ class SingletonEnv {
};
#if !defined(NDEBUG)
-template<typename EnvType>
+template <typename EnvType>
std::atomic<bool> SingletonEnv<EnvType>::env_initialized_;
#endif // !defined(NDEBUG)
diff --git a/util/env_posix_test.cc b/util/env_posix_test.cc
index e28df9a..6a2a1fc 100644
--- a/util/env_posix_test.cc
+++ b/util/env_posix_test.cc
@@ -3,21 +3,19 @@
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#include "leveldb/env.h"
-
#include "port/port.h"
-#include "util/testharness.h"
#include "util/env_posix_test_helper.h"
+#include "util/testharness.h"
namespace leveldb {
-static const int kDelayMicros = 100000;
static const int kReadOnlyFileLimit = 4;
static const int kMMapLimit = 4;
class EnvPosixTest {
public:
Env* env_;
- EnvPosixTest() : env_(Env::Default()) { }
+ EnvPosixTest() : env_(Env::Default()) {}
static void SetFileLimits(int read_only_file_limit, int mmap_limit) {
EnvPosixTestHelper::SetReadOnlyFDLimit(read_only_file_limit);
diff --git a/util/env_test.cc b/util/env_test.cc
index b204089..3e81261 100644
--- a/util/env_test.cc
+++ b/util/env_test.cc
@@ -16,13 +16,11 @@
namespace leveldb {
static const int kDelayMicros = 100000;
-static const int kReadOnlyFileLimit = 4;
-static const int kMMapLimit = 4;
class EnvTest {
public:
Env* env_;
- EnvTest() : env_(Env::Default()) { }
+ EnvTest() : env_(Env::Default()) {}
};
namespace {
@@ -97,7 +95,7 @@ TEST(EnvTest, RunMany) {
const int id_; // Order# for the execution of this callback.
Callback(std::atomic<int>* last_id_ptr, int id)
- : last_id_ptr_(last_id_ptr), id_(id) { }
+ : last_id_ptr_(last_id_ptr), id_(id) {}
static void Run(void* arg) {
Callback* callback = reinterpret_cast<Callback*>(arg);
@@ -125,7 +123,7 @@ struct State {
int val GUARDED_BY(mu);
int num_running GUARDED_BY(mu);
- State(int val, int num_running) : val(val), num_running(num_running) { }
+ State(int val, int num_running) : val(val), num_running(num_running) {}
};
static void ThreadBody(void* arg) {
@@ -164,8 +162,8 @@ TEST(EnvTest, TestOpenNonExistentFile) {
ASSERT_TRUE(!env_->FileExists(non_existent_file));
RandomAccessFile* random_access_file;
- Status status = env_->NewRandomAccessFile(
- non_existent_file, &random_access_file);
+ Status status =
+ env_->NewRandomAccessFile(non_existent_file, &random_access_file);
ASSERT_TRUE(status.IsNotFound());
SequentialFile* sequential_file;
@@ -223,6 +221,4 @@ TEST(EnvTest, ReopenAppendableFile) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/util/env_windows.cc b/util/env_windows.cc
index 14e41e9..c537938 100644
--- a/util/env_windows.cc
+++ b/util/env_windows.cc
@@ -122,8 +122,7 @@ class Limiter {
int old_acquires_allowed =
acquires_allowed_.fetch_sub(1, std::memory_order_relaxed);
- if (old_acquires_allowed > 0)
- return true;
+ if (old_acquires_allowed > 0) return true;
acquires_allowed_.fetch_add(1, std::memory_order_relaxed);
return false;
@@ -131,9 +130,7 @@ class Limiter {
// Release a resource acquired by a previous call to Acquire() that returned
// true.
- void Release() {
- acquires_allowed_.fetch_add(1, std::memory_order_relaxed);
- }
+ void Release() { acquires_allowed_.fetch_add(1, std::memory_order_relaxed); }
private:
// The number of available resources.
diff --git a/util/filter_policy.cc b/util/filter_policy.cc
index 7b045c8..90fd754 100644
--- a/util/filter_policy.cc
+++ b/util/filter_policy.cc
@@ -6,6 +6,6 @@
namespace leveldb {
-FilterPolicy::~FilterPolicy() { }
+FilterPolicy::~FilterPolicy() {}
} // namespace leveldb
diff --git a/util/hash.cc b/util/hash.cc
index ed439ce..67dc134 100644
--- a/util/hash.cc
+++ b/util/hash.cc
@@ -2,15 +2,19 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
+#include "util/hash.h"
+
#include <string.h>
+
#include "util/coding.h"
-#include "util/hash.h"
// The FALLTHROUGH_INTENDED macro can be used to annotate implicit fall-through
// between switch labels. The real definition should be provided externally.
// This one is a fallback version for unsupported compilers.
#ifndef FALLTHROUGH_INTENDED
-#define FALLTHROUGH_INTENDED do { } while (0)
+#define FALLTHROUGH_INTENDED \
+ do { \
+ } while (0)
#endif
namespace leveldb {
@@ -48,5 +52,4 @@ uint32_t Hash(const char* data, size_t n, uint32_t seed) {
return h;
}
-
} // namespace leveldb
diff --git a/util/hash_test.cc b/util/hash_test.cc
index eaa1c92..8f579cc 100644
--- a/util/hash_test.cc
+++ b/util/hash_test.cc
@@ -7,7 +7,7 @@
namespace leveldb {
-class HASH { };
+class HASH {};
TEST(HASH, SignedUnsignedIssue) {
const unsigned char data1[1] = {0x62};
@@ -15,18 +15,10 @@ TEST(HASH, SignedUnsignedIssue) {
const unsigned char data3[3] = {0xe2, 0x99, 0xa5};
const unsigned char data4[4] = {0xe1, 0x80, 0xb9, 0x32};
const unsigned char data5[48] = {
- 0x01, 0xc0, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x14, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x04, 0x00,
- 0x00, 0x00, 0x00, 0x14,
- 0x00, 0x00, 0x00, 0x18,
- 0x28, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- 0x02, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
+ 0x01, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00,
+ 0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x18, 0x28, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
ASSERT_EQ(Hash(0, 0, 0xbc9f1d34), 0xbc9f1d34);
@@ -49,6 +41,4 @@ TEST(HASH, SignedUnsignedIssue) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/util/histogram.cc b/util/histogram.cc
index bb95f58..65092c8 100644
--- a/util/histogram.cc
+++ b/util/histogram.cc
@@ -2,36 +2,174 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
+#include "util/histogram.h"
+
#include <math.h>
#include <stdio.h>
+
#include "port/port.h"
-#include "util/histogram.h"
namespace leveldb {
const double Histogram::kBucketLimit[kNumBuckets] = {
- 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40, 45,
- 50, 60, 70, 80, 90, 100, 120, 140, 160, 180, 200, 250, 300, 350, 400, 450,
- 500, 600, 700, 800, 900, 1000, 1200, 1400, 1600, 1800, 2000, 2500, 3000,
- 3500, 4000, 4500, 5000, 6000, 7000, 8000, 9000, 10000, 12000, 14000,
- 16000, 18000, 20000, 25000, 30000, 35000, 40000, 45000, 50000, 60000,
- 70000, 80000, 90000, 100000, 120000, 140000, 160000, 180000, 200000,
- 250000, 300000, 350000, 400000, 450000, 500000, 600000, 700000, 800000,
- 900000, 1000000, 1200000, 1400000, 1600000, 1800000, 2000000, 2500000,
- 3000000, 3500000, 4000000, 4500000, 5000000, 6000000, 7000000, 8000000,
- 9000000, 10000000, 12000000, 14000000, 16000000, 18000000, 20000000,
- 25000000, 30000000, 35000000, 40000000, 45000000, 50000000, 60000000,
- 70000000, 80000000, 90000000, 100000000, 120000000, 140000000, 160000000,
- 180000000, 200000000, 250000000, 300000000, 350000000, 400000000,
- 450000000, 500000000, 600000000, 700000000, 800000000, 900000000,
- 1000000000, 1200000000, 1400000000, 1600000000, 1800000000, 2000000000,
- 2500000000.0, 3000000000.0, 3500000000.0, 4000000000.0, 4500000000.0,
- 5000000000.0, 6000000000.0, 7000000000.0, 8000000000.0, 9000000000.0,
- 1e200,
+ 1,
+ 2,
+ 3,
+ 4,
+ 5,
+ 6,
+ 7,
+ 8,
+ 9,
+ 10,
+ 12,
+ 14,
+ 16,
+ 18,
+ 20,
+ 25,
+ 30,
+ 35,
+ 40,
+ 45,
+ 50,
+ 60,
+ 70,
+ 80,
+ 90,
+ 100,
+ 120,
+ 140,
+ 160,
+ 180,
+ 200,
+ 250,
+ 300,
+ 350,
+ 400,
+ 450,
+ 500,
+ 600,
+ 700,
+ 800,
+ 900,
+ 1000,
+ 1200,
+ 1400,
+ 1600,
+ 1800,
+ 2000,
+ 2500,
+ 3000,
+ 3500,
+ 4000,
+ 4500,
+ 5000,
+ 6000,
+ 7000,
+ 8000,
+ 9000,
+ 10000,
+ 12000,
+ 14000,
+ 16000,
+ 18000,
+ 20000,
+ 25000,
+ 30000,
+ 35000,
+ 40000,
+ 45000,
+ 50000,
+ 60000,
+ 70000,
+ 80000,
+ 90000,
+ 100000,
+ 120000,
+ 140000,
+ 160000,
+ 180000,
+ 200000,
+ 250000,
+ 300000,
+ 350000,
+ 400000,
+ 450000,
+ 500000,
+ 600000,
+ 700000,
+ 800000,
+ 900000,
+ 1000000,
+ 1200000,
+ 1400000,
+ 1600000,
+ 1800000,
+ 2000000,
+ 2500000,
+ 3000000,
+ 3500000,
+ 4000000,
+ 4500000,
+ 5000000,
+ 6000000,
+ 7000000,
+ 8000000,
+ 9000000,
+ 10000000,
+ 12000000,
+ 14000000,
+ 16000000,
+ 18000000,
+ 20000000,
+ 25000000,
+ 30000000,
+ 35000000,
+ 40000000,
+ 45000000,
+ 50000000,
+ 60000000,
+ 70000000,
+ 80000000,
+ 90000000,
+ 100000000,
+ 120000000,
+ 140000000,
+ 160000000,
+ 180000000,
+ 200000000,
+ 250000000,
+ 300000000,
+ 350000000,
+ 400000000,
+ 450000000,
+ 500000000,
+ 600000000,
+ 700000000,
+ 800000000,
+ 900000000,
+ 1000000000,
+ 1200000000,
+ 1400000000,
+ 1600000000,
+ 1800000000,
+ 2000000000,
+ 2500000000.0,
+ 3000000000.0,
+ 3500000000.0,
+ 4000000000.0,
+ 4500000000.0,
+ 5000000000.0,
+ 6000000000.0,
+ 7000000000.0,
+ 8000000000.0,
+ 9000000000.0,
+ 1e200,
};
void Histogram::Clear() {
- min_ = kBucketLimit[kNumBuckets-1];
+ min_ = kBucketLimit[kNumBuckets - 1];
max_ = 0;
num_ = 0;
sum_ = 0;
@@ -66,9 +204,7 @@ void Histogram::Merge(const Histogram& other) {
}
}
-double Histogram::Median() const {
- return Percentile(50.0);
-}
+double Histogram::Median() const { return Percentile(50.0); }
double Histogram::Percentile(double p) const {
double threshold = num_ * (p / 100.0);
@@ -77,7 +213,7 @@ double Histogram::Percentile(double p) const {
sum += buckets_[b];
if (sum >= threshold) {
// Scale linearly within this bucket
- double left_point = (b == 0) ? 0 : kBucketLimit[b-1];
+ double left_point = (b == 0) ? 0 : kBucketLimit[b - 1];
double right_point = kBucketLimit[b];
double left_sum = sum - buckets_[b];
double right_sum = sum;
@@ -105,12 +241,10 @@ double Histogram::StandardDeviation() const {
std::string Histogram::ToString() const {
std::string r;
char buf[200];
- snprintf(buf, sizeof(buf),
- "Count: %.0f Average: %.4f StdDev: %.2f\n",
- num_, Average(), StandardDeviation());
+ snprintf(buf, sizeof(buf), "Count: %.0f Average: %.4f StdDev: %.2f\n", num_,
+ Average(), StandardDeviation());
r.append(buf);
- snprintf(buf, sizeof(buf),
- "Min: %.4f Median: %.4f Max: %.4f\n",
+ snprintf(buf, sizeof(buf), "Min: %.4f Median: %.4f Max: %.4f\n",
(num_ == 0.0 ? 0.0 : min_), Median(), max_);
r.append(buf);
r.append("------------------------------------------------------\n");
@@ -119,17 +253,16 @@ std::string Histogram::ToString() const {
for (int b = 0; b < kNumBuckets; b++) {
if (buckets_[b] <= 0.0) continue;
sum += buckets_[b];
- snprintf(buf, sizeof(buf),
- "[ %7.0f, %7.0f ) %7.0f %7.3f%% %7.3f%% ",
- ((b == 0) ? 0.0 : kBucketLimit[b-1]), // left
- kBucketLimit[b], // right
- buckets_[b], // count
- mult * buckets_[b], // percentage
- mult * sum); // cumulative percentage
+ snprintf(buf, sizeof(buf), "[ %7.0f, %7.0f ) %7.0f %7.3f%% %7.3f%% ",
+ ((b == 0) ? 0.0 : kBucketLimit[b - 1]), // left
+ kBucketLimit[b], // right
+ buckets_[b], // count
+ mult * buckets_[b], // percentage
+ mult * sum); // cumulative percentage
r.append(buf);
// Add hash marks based on percentage; 20 marks for 100%.
- int marks = static_cast<int>(20*(buckets_[b] / num_) + 0.5);
+ int marks = static_cast<int>(20 * (buckets_[b] / num_) + 0.5);
r.append(marks, '#');
r.push_back('\n');
}
diff --git a/util/histogram.h b/util/histogram.h
index 1ef9f3c..fe281a9 100644
--- a/util/histogram.h
+++ b/util/histogram.h
@@ -11,8 +11,8 @@ namespace leveldb {
class Histogram {
public:
- Histogram() { }
- ~Histogram() { }
+ Histogram() {}
+ ~Histogram() {}
void Clear();
void Add(double value);
diff --git a/util/logging.cc b/util/logging.cc
index 411a303..1ad8f1c 100644
--- a/util/logging.cc
+++ b/util/logging.cc
@@ -8,7 +8,9 @@
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
+
#include <limits>
+
#include "leveldb/env.h"
#include "leveldb/slice.h"
@@ -16,7 +18,7 @@ namespace leveldb {
void AppendNumberTo(std::string* str, uint64_t num) {
char buf[30];
- snprintf(buf, sizeof(buf), "%llu", (unsigned long long) num);
+ snprintf(buf, sizeof(buf), "%llu", (unsigned long long)num);
str->append(buf);
}
@@ -62,8 +64,7 @@ bool ConsumeDecimalNumber(Slice* in, uint64_t* val) {
const unsigned char* current = start;
for (; current != end; ++current) {
const unsigned char ch = *current;
- if (ch < '0' || ch > '9')
- break;
+ if (ch < '0' || ch > '9') break;
// Overflow check.
// kMaxUint64 / 10 is also constant and will be optimized away.
diff --git a/util/logging.h b/util/logging.h
index 13351a2..8ff2da8 100644
--- a/util/logging.h
+++ b/util/logging.h
@@ -8,9 +8,11 @@
#ifndef STORAGE_LEVELDB_UTIL_LOGGING_H_
#define STORAGE_LEVELDB_UTIL_LOGGING_H_
-#include <stdio.h>
#include <stdint.h>
+#include <stdio.h>
+
#include <string>
+
#include "port/port.h"
namespace leveldb {
diff --git a/util/logging_test.cc b/util/logging_test.cc
index 11665fc..389cbeb 100644
--- a/util/logging_test.cc
+++ b/util/logging_test.cc
@@ -11,7 +11,7 @@
namespace leveldb {
-class Logging { };
+class Logging {};
TEST(Logging, NumberToString) {
ASSERT_EQ("0", NumberToString(0));
@@ -140,6 +140,4 @@ TEST(Logging, ConsumeDecimalNumberNoDigits) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/util/mutexlock.h b/util/mutexlock.h
index 08d709a..0cb2e25 100644
--- a/util/mutexlock.h
+++ b/util/mutexlock.h
@@ -22,8 +22,7 @@ namespace leveldb {
class SCOPED_LOCKABLE MutexLock {
public:
- explicit MutexLock(port::Mutex *mu) EXCLUSIVE_LOCK_FUNCTION(mu)
- : mu_(mu) {
+ explicit MutexLock(port::Mutex* mu) EXCLUSIVE_LOCK_FUNCTION(mu) : mu_(mu) {
this->mu_->Lock();
}
~MutexLock() UNLOCK_FUNCTION() { this->mu_->Unlock(); }
@@ -32,10 +31,9 @@ class SCOPED_LOCKABLE MutexLock {
MutexLock& operator=(const MutexLock&) = delete;
private:
- port::Mutex *const mu_;
+ port::Mutex* const mu_;
};
} // namespace leveldb
-
#endif // STORAGE_LEVELDB_UTIL_MUTEXLOCK_H_
diff --git a/util/no_destructor.h b/util/no_destructor.h
index 4827e45..a0d3b87 100644
--- a/util/no_destructor.h
+++ b/util/no_destructor.h
@@ -13,7 +13,7 @@ namespace leveldb {
// Wraps an instance whose destructor is never called.
//
// This is intended for use with function-level static variables.
-template<typename InstanceType>
+template <typename InstanceType>
class NoDestructor {
public:
template <typename... ConstructorArgTypes>
@@ -23,8 +23,8 @@ class NoDestructor {
static_assert(
alignof(decltype(instance_storage_)) >= alignof(InstanceType),
"instance_storage_ does not meet the instance's alignment requirement");
- new (&instance_storage_) InstanceType(
- std::forward<ConstructorArgTypes>(constructor_args)...);
+ new (&instance_storage_)
+ InstanceType(std::forward<ConstructorArgTypes>(constructor_args)...);
}
~NoDestructor() = default;
@@ -37,9 +37,8 @@ class NoDestructor {
}
private:
- typename
- std::aligned_storage<sizeof(InstanceType), alignof(InstanceType)>::type
- instance_storage_;
+ typename std::aligned_storage<sizeof(InstanceType),
+ alignof(InstanceType)>::type instance_storage_;
};
} // namespace leveldb
diff --git a/util/no_destructor_test.cc b/util/no_destructor_test.cc
index 7ce2631..b41caca 100644
--- a/util/no_destructor_test.cc
+++ b/util/no_destructor_test.cc
@@ -28,7 +28,7 @@ constexpr const uint64_t kGoldenB = 0xaabbccddeeffaabb;
} // namespace
-class NoDestructorTest { };
+class NoDestructorTest {};
TEST(NoDestructorTest, StackInstance) {
NoDestructor<DoNotDestruct> instance(kGoldenA, kGoldenB);
@@ -44,6 +44,4 @@ TEST(NoDestructorTest, StaticInstance) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/util/options.cc b/util/options.cc
index 63284f8..62de5bf 100644
--- a/util/options.cc
+++ b/util/options.cc
@@ -9,9 +9,6 @@
namespace leveldb {
-Options::Options()
- : comparator(BytewiseComparator()),
- env(Env::Default()) {
-}
+Options::Options() : comparator(BytewiseComparator()), env(Env::Default()) {}
} // namespace leveldb
diff --git a/util/posix_logger.h b/util/posix_logger.h
index 5685fa3..28e15d1 100644
--- a/util/posix_logger.h
+++ b/util/posix_logger.h
@@ -26,13 +26,9 @@ class PosixLogger final : public Logger {
// Creates a logger that writes to the given file.
//
// The PosixLogger instance takes ownership of the file handle.
- explicit PosixLogger(std::FILE* fp) : fp_(fp) {
- assert(fp != nullptr);
- }
+ explicit PosixLogger(std::FILE* fp) : fp_(fp) { assert(fp != nullptr); }
- ~PosixLogger() override {
- std::fclose(fp_);
- }
+ ~PosixLogger() override { std::fclose(fp_); }
void Logv(const char* format, va_list arguments) override {
// Record the time as close to the Logv() call as possible.
@@ -67,15 +63,10 @@ class PosixLogger final : public Logger {
// Print the header into the buffer.
int buffer_offset = snprintf(
- buffer, buffer_size,
- "%04d/%02d/%02d-%02d:%02d:%02d.%06d %s ",
- now_components.tm_year + 1900,
- now_components.tm_mon + 1,
- now_components.tm_mday,
- now_components.tm_hour,
- now_components.tm_min,
- now_components.tm_sec,
- static_cast<int>(now_timeval.tv_usec),
+ buffer, buffer_size, "%04d/%02d/%02d-%02d:%02d:%02d.%06d %s ",
+ now_components.tm_year + 1900, now_components.tm_mon + 1,
+ now_components.tm_mday, now_components.tm_hour, now_components.tm_min,
+ now_components.tm_sec, static_cast<int>(now_timeval.tv_usec),
thread_id.c_str());
// The header can be at most 28 characters (10 date + 15 time +
@@ -89,9 +80,9 @@ class PosixLogger final : public Logger {
// Print the message into the buffer.
std::va_list arguments_copy;
va_copy(arguments_copy, arguments);
- buffer_offset += std::vsnprintf(buffer + buffer_offset,
- buffer_size - buffer_offset, format,
- arguments_copy);
+ buffer_offset +=
+ std::vsnprintf(buffer + buffer_offset, buffer_size - buffer_offset,
+ format, arguments_copy);
va_end(arguments_copy);
// The code below may append a newline at the end of the buffer, which
diff --git a/util/random.h b/util/random.h
index ddd51b1..76f7daf 100644
--- a/util/random.h
+++ b/util/random.h
@@ -15,6 +15,7 @@ namespace leveldb {
class Random {
private:
uint32_t seed_;
+
public:
explicit Random(uint32_t s) : seed_(s & 0x7fffffffu) {
// Avoid bad seeds.
@@ -23,8 +24,8 @@ class Random {
}
}
uint32_t Next() {
- static const uint32_t M = 2147483647L; // 2^31-1
- static const uint64_t A = 16807; // bits 14, 8, 7, 5, 2, 1, 0
+ static const uint32_t M = 2147483647L; // 2^31-1
+ static const uint64_t A = 16807; // bits 14, 8, 7, 5, 2, 1, 0
// We are computing
// seed_ = (seed_ * A) % M, where M = 2^31-1
//
@@ -54,9 +55,7 @@ class Random {
// Skewed: pick "base" uniformly from range [0,max_log] and then
// return "base" random bits. The effect is to pick a number in the
// range [0,2^max_log-1] with exponential bias towards smaller numbers.
- uint32_t Skewed(int max_log) {
- return Uniform(1 << Uniform(max_log + 1));
- }
+ uint32_t Skewed(int max_log) { return Uniform(1 << Uniform(max_log + 1)); }
};
} // namespace leveldb
diff --git a/util/status.cc b/util/status.cc
index 5591381..6ca8da6 100644
--- a/util/status.cc
+++ b/util/status.cc
@@ -2,9 +2,11 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
+#include "leveldb/status.h"
+
#include <stdio.h>
+
#include "port/port.h"
-#include "leveldb/status.h"
namespace leveldb {
@@ -59,8 +61,8 @@ std::string Status::ToString() const {
type = "IO error: ";
break;
default:
- snprintf(tmp, sizeof(tmp), "Unknown code(%d): ",
- static_cast<int>(code()));
+ snprintf(tmp, sizeof(tmp),
+ "Unknown code(%d): ", static_cast<int>(code()));
type = tmp;
break;
}
diff --git a/util/status_test.cc b/util/status_test.cc
index 7ed3b9e..2842319 100644
--- a/util/status_test.cc
+++ b/util/status_test.cc
@@ -37,6 +37,4 @@ TEST(Status, MoveConstructor) {
} // namespace leveldb
-int main(int argc, char** argv) {
- return leveldb::test::RunAllTests();
-}
+int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
diff --git a/util/testharness.cc b/util/testharness.cc
index 37ba410..318ecfa 100644
--- a/util/testharness.cc
+++ b/util/testharness.cc
@@ -23,7 +23,7 @@ struct Test {
void (*func)();
};
std::vector<Test>* tests;
-}
+} // namespace
bool RegisterTest(const char* base, const char* name, void (*func)()) {
if (tests == nullptr) {
diff --git a/util/testharness.h b/util/testharness.h
index 8ee7972..72cd162 100644
--- a/util/testharness.h
+++ b/util/testharness.h
@@ -47,9 +47,7 @@ class Tester {
std::stringstream ss_;
public:
- Tester(const char* f, int l)
- : ok_(true), fname_(f), line_(l) {
- }
+ Tester(const char* f, int l) : ok_(true), fname_(f), line_(l) {}
~Tester() {
if (!ok_) {
@@ -74,14 +72,14 @@ class Tester {
return *this;
}
-#define BINARY_OP(name, op) \
- template <class X, class Y> \
- Tester& name(const X& x, const Y& y) { \
- if (!(x op y)) { \
- ss_ << " failed: " << x << (" " #op " ") << y; \
- ok_ = false; \
- } \
- return *this; \
+#define BINARY_OP(name, op) \
+ template <class X, class Y> \
+ Tester& name(const X& x, const Y& y) { \
+ if (!(x op y)) { \
+ ss_ << " failed: " << x << (" " #op " ") << y; \
+ ok_ = false; \
+ } \
+ return *this; \
}
BINARY_OP(IsEq, ==)
@@ -104,28 +102,34 @@ class Tester {
#define ASSERT_TRUE(c) ::leveldb::test::Tester(__FILE__, __LINE__).Is((c), #c)
#define ASSERT_OK(s) ::leveldb::test::Tester(__FILE__, __LINE__).IsOk((s))
-#define ASSERT_EQ(a,b) ::leveldb::test::Tester(__FILE__, __LINE__).IsEq((a),(b))
-#define ASSERT_NE(a,b) ::leveldb::test::Tester(__FILE__, __LINE__).IsNe((a),(b))
-#define ASSERT_GE(a,b) ::leveldb::test::Tester(__FILE__, __LINE__).IsGe((a),(b))
-#define ASSERT_GT(a,b) ::leveldb::test::Tester(__FILE__, __LINE__).IsGt((a),(b))
-#define ASSERT_LE(a,b) ::leveldb::test::Tester(__FILE__, __LINE__).IsLe((a),(b))
-#define ASSERT_LT(a,b) ::leveldb::test::Tester(__FILE__, __LINE__).IsLt((a),(b))
+#define ASSERT_EQ(a, b) \
+ ::leveldb::test::Tester(__FILE__, __LINE__).IsEq((a), (b))
+#define ASSERT_NE(a, b) \
+ ::leveldb::test::Tester(__FILE__, __LINE__).IsNe((a), (b))
+#define ASSERT_GE(a, b) \
+ ::leveldb::test::Tester(__FILE__, __LINE__).IsGe((a), (b))
+#define ASSERT_GT(a, b) \
+ ::leveldb::test::Tester(__FILE__, __LINE__).IsGt((a), (b))
+#define ASSERT_LE(a, b) \
+ ::leveldb::test::Tester(__FILE__, __LINE__).IsLe((a), (b))
+#define ASSERT_LT(a, b) \
+ ::leveldb::test::Tester(__FILE__, __LINE__).IsLt((a), (b))
#define TCONCAT(a, b) TCONCAT1(a, b)
#define TCONCAT1(a, b) a##b
-#define TEST(base, name) \
-class TCONCAT(_Test_, name) : public base { \
- public: \
- void _Run(); \
- static void _RunIt() { \
- TCONCAT(_Test_, name) t; \
- t._Run(); \
- } \
-}; \
-bool TCONCAT(_Test_ignored_, name) = \
- ::leveldb::test::RegisterTest(#base, #name, &TCONCAT(_Test_, name)::_RunIt); \
-void TCONCAT(_Test_, name)::_Run()
+#define TEST(base, name) \
+ class TCONCAT(_Test_, name) : public base { \
+ public: \
+ void _Run(); \
+ static void _RunIt() { \
+ TCONCAT(_Test_, name) t; \
+ t._Run(); \
+ } \
+ }; \
+ bool TCONCAT(_Test_ignored_, name) = ::leveldb::test::RegisterTest( \
+ #base, #name, &TCONCAT(_Test_, name)::_RunIt); \
+ void TCONCAT(_Test_, name)::_Run()
// Register the specified test. Typically not used directly, but
// invoked via the macro expansion of TEST.
diff --git a/util/testutil.cc b/util/testutil.cc
index 9d8079c..6b151b9 100644
--- a/util/testutil.cc
+++ b/util/testutil.cc
@@ -12,7 +12,7 @@ namespace test {
Slice RandomString(Random* rnd, int len, std::string* dst) {
dst->resize(len);
for (int i = 0; i < len; i++) {
- (*dst)[i] = static_cast<char>(' ' + rnd->Uniform(95)); // ' ' .. '~'
+ (*dst)[i] = static_cast<char>(' ' + rnd->Uniform(95)); // ' ' .. '~'
}
return Slice(*dst);
}
@@ -20,9 +20,8 @@ Slice RandomString(Random* rnd, int len, std::string* dst) {
std::string RandomKey(Random* rnd, int len) {
// Make sure to generate a wide variety of characters so we
// test the boundary conditions for short-key optimizations.
- static const char kTestChars[] = {
- '\0', '\1', 'a', 'b', 'c', 'd', 'e', '\xfd', '\xfe', '\xff'
- };
+ static const char kTestChars[] = {'\0', '\1', 'a', 'b', 'c',
+ 'd', 'e', '\xfd', '\xfe', '\xff'};
std::string result;
for (int i = 0; i < len; i++) {
result += kTestChars[rnd->Uniform(sizeof(kTestChars))];
@@ -30,9 +29,8 @@ std::string RandomKey(Random* rnd, int len) {
return result;
}
-
-Slice CompressibleString(Random* rnd, double compressed_fraction,
- size_t len, std::string* dst) {
+Slice CompressibleString(Random* rnd, double compressed_fraction, size_t len,
+ std::string* dst) {
int raw = static_cast<int>(len * compressed_fraction);
if (raw < 1) raw = 1;
std::string raw_data;
diff --git a/util/testutil.h b/util/testutil.h
index a568824..bb4051b 100644
--- a/util/testutil.h
+++ b/util/testutil.h
@@ -24,8 +24,8 @@ std::string RandomKey(Random* rnd, int len);
// Store in *dst a string of length "len" that will compress to
// "N*compressed_fraction" bytes and return a Slice that references
// the generated data.
-Slice CompressibleString(Random* rnd, double compressed_fraction,
- size_t len, std::string* dst);
+Slice CompressibleString(Random* rnd, double compressed_fraction, size_t len,
+ std::string* dst);
// A wrapper that allows injection of errors.
class ErrorEnv : public EnvWrapper {
@@ -33,12 +33,11 @@ class ErrorEnv : public EnvWrapper {
bool writable_file_error_;
int num_writable_file_errors_;
- ErrorEnv() : EnvWrapper(NewMemEnv(Env::Default())),
- writable_file_error_(false),
- num_writable_file_errors_(0) { }
- ~ErrorEnv() override {
- delete target();
- }
+ ErrorEnv()
+ : EnvWrapper(NewMemEnv(Env::Default())),
+ writable_file_error_(false),
+ num_writable_file_errors_(0) {}
+ ~ErrorEnv() override { delete target(); }
Status NewWritableFile(const std::string& fname,
WritableFile** result) override {
diff --git a/util/windows_logger.h b/util/windows_logger.h
index 96799bc..9296063 100644
--- a/util/windows_logger.h
+++ b/util/windows_logger.h
@@ -23,13 +23,9 @@ class WindowsLogger final : public Logger {
// Creates a logger that writes to the given file.
//
// The PosixLogger instance takes ownership of the file handle.
- explicit WindowsLogger(std::FILE* fp) : fp_(fp) {
- assert(fp != nullptr);
- }
+ explicit WindowsLogger(std::FILE* fp) : fp_(fp) { assert(fp != nullptr); }
- ~WindowsLogger() override {
- std::fclose(fp_);
- }
+ ~WindowsLogger() override { std::fclose(fp_); }
void Logv(const char* format, va_list arguments) override {
// Record the time as close to the Logv() call as possible.
@@ -61,14 +57,9 @@ class WindowsLogger final : public Logger {
// Print the header into the buffer.
int buffer_offset = snprintf(
- buffer, buffer_size,
- "%04d/%02d/%02d-%02d:%02d:%02d.%06d %s ",
- now_components.wYear,
- now_components.wMonth,
- now_components.wDay,
- now_components.wHour,
- now_components.wMinute,
- now_components.wSecond,
+ buffer, buffer_size, "%04d/%02d/%02d-%02d:%02d:%02d.%06d %s ",
+ now_components.wYear, now_components.wMonth, now_components.wDay,
+ now_components.wHour, now_components.wMinute, now_components.wSecond,
static_cast<int>(now_components.wMilliseconds * 1000),
thread_id.c_str());
@@ -83,9 +74,9 @@ class WindowsLogger final : public Logger {
// Print the message into the buffer.
std::va_list arguments_copy;
va_copy(arguments_copy, arguments);
- buffer_offset += std::vsnprintf(buffer + buffer_offset,
- buffer_size - buffer_offset, format,
- arguments_copy);
+ buffer_offset +=
+ std::vsnprintf(buffer + buffer_offset, buffer_size - buffer_offset,
+ format, arguments_copy);
va_end(arguments_copy);
// The code below may append a newline at the end of the buffer, which