You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
613 lines
17 KiB
613 lines
17 KiB
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
|
|
// 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 <deque>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include "base/at_exit.h"
|
|
#include "base/file_path.h"
|
|
#include "base/file_util.h"
|
|
#include "base/lazy_instance.h"
|
|
#include "base/message_loop.h"
|
|
#include "base/platform_file.h"
|
|
#include "base/process_util.h"
|
|
#include "base/ref_counted.h"
|
|
#include "base/synchronization/lock.h"
|
|
#include "base/sys_info.h"
|
|
#include "base/task.h"
|
|
#include "base/threading/platform_thread.h"
|
|
#include "base/threading/thread.h"
|
|
#include "base/utf_string_conversions.h"
|
|
#include "include/env.h"
|
|
#include "include/slice.h"
|
|
#include "port/port.h"
|
|
#include "util/logging.h"
|
|
|
|
#if defined(OS_WIN)
|
|
#include <io.h>
|
|
#include "base/win/win_util.h"
|
|
#endif
|
|
|
|
#if defined(OS_MACOSX) || defined(OS_WIN)
|
|
// The following are glibc-specific
|
|
extern "C" {
|
|
size_t fread_unlocked(void *ptr, size_t size, size_t n, FILE *file) {
|
|
return fread(ptr, size, n, file);
|
|
}
|
|
|
|
size_t fwrite_unlocked(const void *ptr, size_t size, size_t n, FILE *file) {
|
|
return fwrite(ptr, size, n, file);
|
|
}
|
|
|
|
int fflush_unlocked(FILE *file) {
|
|
return fflush(file);
|
|
}
|
|
|
|
int fdatasync(int fildes) {
|
|
#if defined(OS_WIN)
|
|
return _commit(fildes);
|
|
#else
|
|
return fsync(fildes);
|
|
#endif
|
|
}
|
|
}
|
|
#endif
|
|
|
|
namespace leveldb {
|
|
|
|
namespace {
|
|
|
|
class Thread;
|
|
|
|
static const ::FilePath::CharType kLevelDBTestDirectoryPrefix[]
|
|
= FILE_PATH_LITERAL("leveldb-test-");
|
|
|
|
::FilePath CreateFilePath(const std::string& file_path) {
|
|
#if defined(OS_WIN)
|
|
return FilePath(UTF8ToUTF16(file_path));
|
|
#else
|
|
return FilePath(file_path);
|
|
#endif
|
|
}
|
|
|
|
std::string FilePathToString(const ::FilePath& file_path) {
|
|
#if defined(OS_WIN)
|
|
return UTF16ToUTF8(file_path.value());
|
|
#else
|
|
return file_path.value();
|
|
#endif
|
|
}
|
|
|
|
// TODO(jorlow): This should be moved into Chromium's base.
|
|
const char* PlatformFileErrorString(const ::base::PlatformFileError& error) {
|
|
switch (error) {
|
|
case ::base::PLATFORM_FILE_ERROR_FAILED:
|
|
return "Opening file failed.";
|
|
case ::base::PLATFORM_FILE_ERROR_IN_USE:
|
|
return "File currently in use.";
|
|
case ::base::PLATFORM_FILE_ERROR_EXISTS:
|
|
return "File already exists.";
|
|
case ::base::PLATFORM_FILE_ERROR_NOT_FOUND:
|
|
return "File not found.";
|
|
case ::base::PLATFORM_FILE_ERROR_ACCESS_DENIED:
|
|
return "Access denied.";
|
|
case ::base::PLATFORM_FILE_ERROR_TOO_MANY_OPENED:
|
|
return "Too many files open.";
|
|
case ::base::PLATFORM_FILE_ERROR_NO_MEMORY:
|
|
return "Out of memory.";
|
|
case ::base::PLATFORM_FILE_ERROR_NO_SPACE:
|
|
return "No space left on drive.";
|
|
case ::base::PLATFORM_FILE_ERROR_NOT_A_DIRECTORY:
|
|
return "Not a directory.";
|
|
case ::base::PLATFORM_FILE_ERROR_INVALID_OPERATION:
|
|
return "Invalid operation.";
|
|
case ::base::PLATFORM_FILE_ERROR_SECURITY:
|
|
return "Security error.";
|
|
case ::base::PLATFORM_FILE_ERROR_ABORT:
|
|
return "File operation aborted.";
|
|
case ::base::PLATFORM_FILE_ERROR_NOT_A_FILE:
|
|
return "The supplied path was not a file.";
|
|
case ::base::PLATFORM_FILE_ERROR_NOT_EMPTY:
|
|
return "The file was not empty.";
|
|
}
|
|
NOTIMPLEMENTED();
|
|
return "Unknown error.";
|
|
}
|
|
|
|
class ChromiumSequentialFile: public SequentialFile {
|
|
private:
|
|
std::string filename_;
|
|
FILE* file_;
|
|
|
|
public:
|
|
ChromiumSequentialFile(const std::string& fname, FILE* f)
|
|
: filename_(fname), file_(f) { }
|
|
virtual ~ChromiumSequentialFile() { fclose(file_); }
|
|
|
|
virtual Status Read(size_t n, Slice* result, char* scratch) {
|
|
Status s;
|
|
size_t r = fread_unlocked(scratch, 1, n, file_);
|
|
*result = Slice(scratch, r);
|
|
if (r < n) {
|
|
if (feof(file_)) {
|
|
// We leave status as ok if we hit the end of the file
|
|
} else {
|
|
// A partial read with an error: return a non-ok status
|
|
s = Status::IOError(filename_, strerror(errno));
|
|
}
|
|
}
|
|
return s;
|
|
}
|
|
};
|
|
|
|
class ChromiumRandomAccessFile: public RandomAccessFile {
|
|
private:
|
|
std::string filename_;
|
|
uint64_t size_;
|
|
::base::PlatformFile file_;
|
|
|
|
public:
|
|
ChromiumRandomAccessFile(const std::string& fname, uint64_t size,
|
|
::base::PlatformFile file)
|
|
: filename_(fname), size_(size), file_(file) { }
|
|
virtual ~ChromiumRandomAccessFile() { ::base::ClosePlatformFile(file_); }
|
|
|
|
virtual uint64_t Size() const { return size_; }
|
|
|
|
virtual Status Read(uint64_t offset, size_t n, Slice* result,
|
|
char* scratch) const {
|
|
Status s;
|
|
int r = ::base::ReadPlatformFile(file_, offset, scratch, n);
|
|
*result = Slice(scratch, (r < 0) ? 0 : r);
|
|
if (r < 0) {
|
|
// An error: return a non-ok status
|
|
s = Status::IOError(filename_, "Could not preform read");
|
|
}
|
|
return s;
|
|
}
|
|
};
|
|
|
|
class ChromiumWritableFile : public WritableFile {
|
|
private:
|
|
std::string filename_;
|
|
FILE* file_;
|
|
|
|
public:
|
|
ChromiumWritableFile(const std::string& fname, FILE* f)
|
|
: filename_(fname), file_(f) { }
|
|
|
|
~ChromiumWritableFile() {
|
|
if (file_ != NULL) {
|
|
// Ignoring any potential errors
|
|
fclose(file_);
|
|
}
|
|
}
|
|
|
|
virtual Status Append(const Slice& data) {
|
|
size_t r = fwrite_unlocked(data.data(), 1, data.size(), file_);
|
|
Status result;
|
|
if (r != data.size()) {
|
|
result = Status::IOError(filename_, strerror(errno));
|
|
}
|
|
return result;
|
|
}
|
|
|
|
virtual Status Close() {
|
|
Status result;
|
|
if (fclose(file_) != 0) {
|
|
result = Status::IOError(filename_, strerror(errno));
|
|
}
|
|
file_ = NULL;
|
|
return result;
|
|
}
|
|
|
|
virtual Status Flush() {
|
|
Status result;
|
|
if (fflush_unlocked(file_) != 0) {
|
|
result = Status::IOError(filename_, strerror(errno));
|
|
}
|
|
return result;
|
|
}
|
|
|
|
virtual Status Sync() {
|
|
Status result;
|
|
if ((fflush_unlocked(file_) != 0) ||
|
|
(fdatasync(fileno(file_)) != 0)) {
|
|
result = Status::IOError(filename_, strerror(errno));
|
|
}
|
|
return result;
|
|
}
|
|
};
|
|
|
|
class ChromiumFileLock : public FileLock {
|
|
public:
|
|
::base::PlatformFile file_;
|
|
};
|
|
|
|
class ChromiumEnv : public Env {
|
|
public:
|
|
ChromiumEnv();
|
|
virtual ~ChromiumEnv() {
|
|
fprintf(stderr, "Destroying Env::Default()\n");
|
|
exit(1);
|
|
}
|
|
|
|
virtual Status NewSequentialFile(const std::string& fname,
|
|
SequentialFile** result) {
|
|
FILE* f = fopen(fname.c_str(), "rb");
|
|
if (f == NULL) {
|
|
*result = NULL;
|
|
return Status::IOError(fname, strerror(errno));
|
|
} else {
|
|
*result = new ChromiumSequentialFile(fname, f);
|
|
return Status::OK();
|
|
}
|
|
}
|
|
|
|
virtual Status NewRandomAccessFile(const std::string& fname,
|
|
RandomAccessFile** result) {
|
|
int flags = ::base::PLATFORM_FILE_READ | ::base::PLATFORM_FILE_OPEN;
|
|
bool created;
|
|
::base::PlatformFileError error_code;
|
|
::base::PlatformFile file = ::base::CreatePlatformFile(
|
|
CreateFilePath(fname), flags, &created, &error_code);
|
|
if (error_code != ::base::PLATFORM_FILE_OK) {
|
|
*result = NULL;
|
|
return Status::IOError(fname, PlatformFileErrorString(error_code));
|
|
}
|
|
::base::PlatformFileInfo info;
|
|
if (!::base::GetPlatformFileInfo(file, &info)) {
|
|
*result = NULL;
|
|
::base::ClosePlatformFile(file);
|
|
return Status::IOError(fname, PlatformFileErrorString(error_code));
|
|
}
|
|
*result = new ChromiumRandomAccessFile(fname, info.size, file);
|
|
return Status::OK();
|
|
}
|
|
|
|
virtual Status NewWritableFile(const std::string& fname,
|
|
WritableFile** result) {
|
|
*result = NULL;
|
|
FILE* f = fopen(fname.c_str(), "wb");
|
|
if (f == NULL) {
|
|
return Status::IOError(fname, strerror(errno));
|
|
} else {
|
|
*result = new ChromiumWritableFile(fname, f);
|
|
return Status::OK();
|
|
}
|
|
}
|
|
|
|
virtual bool FileExists(const std::string& fname) {
|
|
return ::file_util::PathExists(CreateFilePath(fname));
|
|
}
|
|
|
|
virtual Status GetChildren(const std::string& dir,
|
|
std::vector<std::string>* result) {
|
|
result->clear();
|
|
::file_util::FileEnumerator iter(
|
|
CreateFilePath(dir), false, ::file_util::FileEnumerator::FILES);
|
|
::FilePath current = iter.Next();
|
|
while (!current.empty()) {
|
|
result->push_back(FilePathToString(current.BaseName()));
|
|
current = iter.Next();
|
|
}
|
|
// TODO(jorlow): Unfortunately, the FileEnumerator swallows errors, so
|
|
// we'll always return OK. Maybe manually check for error
|
|
// conditions like the file not existing?
|
|
return Status::OK();
|
|
}
|
|
|
|
virtual Status DeleteFile(const std::string& fname) {
|
|
Status result;
|
|
// TODO(jorlow): Should we assert this is a file?
|
|
if (!::file_util::Delete(CreateFilePath(fname), false)) {
|
|
result = Status::IOError(fname, "Could not delete file.");
|
|
}
|
|
return result;
|
|
};
|
|
|
|
virtual Status CreateDir(const std::string& name) {
|
|
Status result;
|
|
if (!::file_util::CreateDirectory(CreateFilePath(name))) {
|
|
result = Status::IOError(name, "Could not create directory.");
|
|
}
|
|
return result;
|
|
};
|
|
|
|
virtual Status DeleteDir(const std::string& name) {
|
|
Status result;
|
|
// TODO(jorlow): Should we assert this is a directory?
|
|
if (!::file_util::Delete(CreateFilePath(name), false)) {
|
|
result = Status::IOError(name, "Could not delete directory.");
|
|
}
|
|
return result;
|
|
};
|
|
|
|
virtual Status GetFileSize(const std::string& fname, uint64_t* size) {
|
|
Status s;
|
|
int64_t signed_size;
|
|
if (!::file_util::GetFileSize(CreateFilePath(fname), &signed_size)) {
|
|
*size = 0;
|
|
s = Status::IOError(fname, "Could not determine file size.");
|
|
} else {
|
|
*size = static_cast<uint64_t>(signed_size);
|
|
}
|
|
return s;
|
|
}
|
|
|
|
virtual Status RenameFile(const std::string& src, const std::string& dst) {
|
|
Status result;
|
|
if (!::file_util::ReplaceFile(CreateFilePath(src), CreateFilePath(dst))) {
|
|
result = Status::IOError(src, "Could not rename file.");
|
|
}
|
|
return result;
|
|
}
|
|
|
|
virtual Status LockFile(const std::string& fname, FileLock** lock) {
|
|
*lock = NULL;
|
|
Status result;
|
|
int flags = ::base::PLATFORM_FILE_OPEN_ALWAYS |
|
|
::base::PLATFORM_FILE_READ |
|
|
::base::PLATFORM_FILE_WRITE |
|
|
::base::PLATFORM_FILE_EXCLUSIVE_READ |
|
|
::base::PLATFORM_FILE_EXCLUSIVE_WRITE;
|
|
bool created;
|
|
::base::PlatformFileError error_code;
|
|
::base::PlatformFile file = ::base::CreatePlatformFile(
|
|
CreateFilePath(fname), flags, &created, &error_code);
|
|
if (error_code != ::base::PLATFORM_FILE_OK) {
|
|
result = Status::IOError(fname, PlatformFileErrorString(error_code));
|
|
} else {
|
|
ChromiumFileLock* my_lock = new ChromiumFileLock;
|
|
my_lock->file_ = file;
|
|
*lock = my_lock;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
virtual Status UnlockFile(FileLock* lock) {
|
|
ChromiumFileLock* my_lock = reinterpret_cast<ChromiumFileLock*>(lock);
|
|
Status result;
|
|
if (!::base::ClosePlatformFile(my_lock->file_)) {
|
|
result = Status::IOError("Could not close lock file.");
|
|
}
|
|
delete my_lock;
|
|
return result;
|
|
}
|
|
|
|
virtual void Schedule(void (*function)(void*), void* arg);
|
|
|
|
virtual void StartThread(void (*function)(void* arg), void* arg);
|
|
|
|
virtual std::string UserIdentifier() {
|
|
#if defined(OS_WIN)
|
|
std::wstring user_sid;
|
|
bool ret = ::base::win::GetUserSidString(&user_sid);
|
|
DCHECK(ret);
|
|
return UTF16ToUTF8(user_sid);
|
|
#else
|
|
char buf[100];
|
|
snprintf(buf, sizeof(buf), "%d", int(geteuid()));
|
|
return buf;
|
|
#endif
|
|
}
|
|
|
|
virtual Status GetTestDirectory(std::string* path) {
|
|
mu_.Acquire();
|
|
if (test_directory_.empty()) {
|
|
if (!::file_util::CreateNewTempDirectory(kLevelDBTestDirectoryPrefix,
|
|
&test_directory_)) {
|
|
mu_.Release();
|
|
return Status::IOError("Could not create temp directory.");
|
|
}
|
|
}
|
|
*path = FilePathToString(test_directory_);
|
|
mu_.Release();
|
|
return Status::OK();
|
|
}
|
|
|
|
virtual void Logv(WritableFile* info_log, const char* format, va_list ap) {
|
|
// TODO(jorlow): We may want to just use Chromium's built in logging.
|
|
|
|
uint64_t thread_id = 0;
|
|
// Coppied from base/logging.cc.
|
|
#if defined(OS_WIN)
|
|
thread_id = GetCurrentThreadId();
|
|
#elif defined(OS_MACOSX)
|
|
thread_id = mach_thread_self();
|
|
#elif defined(OS_LINUX)
|
|
thread_id = syscall(__NR_gettid);
|
|
#elif defined(OS_FREEBSD) || defined(OS_NACL)
|
|
// TODO(BSD): find a better thread ID
|
|
pthread_t tid = pthread_self();
|
|
memcpy(&thread_id, &tid, min(sizeof(r), sizeof(tid)));
|
|
#endif
|
|
|
|
// We try twice: the first time with a fixed-size stack allocated buffer,
|
|
// and the second time with a much larger dynamically allocated buffer.
|
|
char buffer[500];
|
|
for (int iter = 0; iter < 2; iter++) {
|
|
char* base;
|
|
int bufsize;
|
|
if (iter == 0) {
|
|
bufsize = sizeof(buffer);
|
|
base = buffer;
|
|
} else {
|
|
bufsize = 30000;
|
|
base = new char[bufsize];
|
|
}
|
|
char* p = base;
|
|
char* limit = base + bufsize;
|
|
|
|
::base::Time::Exploded t;
|
|
::base::Time::Now().LocalExplode(&t);
|
|
p += snprintf(p, limit - p,
|
|
"%04d/%02d/%02d-%02d:%02d:%02d.%06d %llx ",
|
|
t.year,
|
|
t.month,
|
|
t.day_of_month,
|
|
t.hour,
|
|
t.minute,
|
|
t.second,
|
|
static_cast<int>(t.millisecond) * 1000,
|
|
static_cast<long long unsigned int>(thread_id));
|
|
|
|
// Print the message
|
|
if (p < limit) {
|
|
va_list backup_ap;
|
|
va_copy(backup_ap, ap);
|
|
p += vsnprintf(p, limit - p, format, backup_ap);
|
|
va_end(backup_ap);
|
|
}
|
|
|
|
// Truncate to available space if necessary
|
|
if (p >= limit) {
|
|
if (iter == 0) {
|
|
continue; // Try again with larger buffer
|
|
} else {
|
|
p = limit - 1;
|
|
}
|
|
}
|
|
|
|
// Add newline if necessary
|
|
if (p == base || p[-1] != '\n') {
|
|
*p++ = '\n';
|
|
}
|
|
|
|
assert(p <= limit);
|
|
info_log->Append(Slice(base, p - base));
|
|
info_log->Flush();
|
|
if (base != buffer) {
|
|
delete[] base;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
virtual int AppendLocalTimeToBuffer(char* buffer, size_t size) {
|
|
::base::Time::Exploded t;
|
|
::base::Time::Now().LocalExplode(&t);
|
|
return snprintf(buffer, size,
|
|
"%04d/%02d/%02d-%02d:%02d:%02d.%06d",
|
|
t.year,
|
|
t.month,
|
|
t.day_of_month,
|
|
t.hour,
|
|
t.minute,
|
|
t.second,
|
|
static_cast<int>(t.millisecond) * 1000);
|
|
}
|
|
|
|
virtual uint64_t NowMicros() {
|
|
return ::base::TimeTicks::HighResNow().ToInternalValue();
|
|
}
|
|
|
|
virtual void SleepForMicroseconds(int micros) {
|
|
// Round up to the next millisecond.
|
|
::base::PlatformThread::Sleep((micros + 999) / 1000);
|
|
}
|
|
|
|
private:
|
|
// BGThread() is the body of the background thread
|
|
void BGThread();
|
|
static void BGThreadWrapper(void* arg) {
|
|
reinterpret_cast<ChromiumEnv*>(arg)->BGThread();
|
|
}
|
|
|
|
FilePath test_directory_;
|
|
|
|
size_t page_size_;
|
|
::base::Lock mu_;
|
|
::base::ConditionVariable bgsignal_;
|
|
bool started_bgthread_;
|
|
|
|
// Entry per Schedule() call
|
|
struct BGItem { void* arg; void (*function)(void*); };
|
|
typedef std::deque<BGItem> BGQueue;
|
|
BGQueue queue_;
|
|
};
|
|
|
|
ChromiumEnv::ChromiumEnv()
|
|
: page_size_(::base::SysInfo::VMAllocationGranularity()),
|
|
bgsignal_(&mu_),
|
|
started_bgthread_(false) {
|
|
#if defined(OS_MACOSX)
|
|
::base::EnableTerminationOnHeapCorruption();
|
|
::base::EnableTerminationOnOutOfMemory();
|
|
#endif // OS_MACOSX
|
|
}
|
|
|
|
class Thread : public ::base::PlatformThread::Delegate {
|
|
public:
|
|
Thread(void (*function)(void* arg), void* arg)
|
|
: function_(function), arg_(arg) {
|
|
::base::PlatformThreadHandle handle;
|
|
bool success = ::base::PlatformThread::Create(0, this, &handle);
|
|
DCHECK(success);
|
|
}
|
|
virtual ~Thread() {}
|
|
virtual void ThreadMain() {
|
|
(*function_)(arg_);
|
|
delete this;
|
|
}
|
|
|
|
private:
|
|
void (*function_)(void* arg);
|
|
void* arg_;
|
|
};
|
|
|
|
void ChromiumEnv::Schedule(void (*function)(void*), void* arg) {
|
|
mu_.Acquire();
|
|
|
|
// Start background thread if necessary
|
|
if (!started_bgthread_) {
|
|
started_bgthread_ = true;
|
|
StartThread(&ChromiumEnv::BGThreadWrapper, this);
|
|
}
|
|
|
|
// If the queue is currently empty, the background thread may currently be
|
|
// waiting.
|
|
if (queue_.empty()) {
|
|
bgsignal_.Signal();
|
|
}
|
|
|
|
// Add to priority queue
|
|
queue_.push_back(BGItem());
|
|
queue_.back().function = function;
|
|
queue_.back().arg = arg;
|
|
|
|
mu_.Release();
|
|
}
|
|
|
|
void ChromiumEnv::BGThread() {
|
|
while (true) {
|
|
// Wait until there is an item that is ready to run
|
|
mu_.Acquire();
|
|
while (queue_.empty()) {
|
|
bgsignal_.Wait();
|
|
}
|
|
|
|
void (*function)(void*) = queue_.front().function;
|
|
void* arg = queue_.front().arg;
|
|
queue_.pop_front();
|
|
|
|
mu_.Release();
|
|
(*function)(arg);
|
|
}
|
|
}
|
|
|
|
void ChromiumEnv::StartThread(void (*function)(void* arg), void* arg) {
|
|
new Thread(function, arg); // Will self-delete.
|
|
}
|
|
|
|
::base::LazyInstance<ChromiumEnv, ::base::LeakyLazyInstanceTraits<ChromiumEnv> >
|
|
default_env(::base::LINKER_INITIALIZED);
|
|
|
|
}
|
|
|
|
Env* Env::Default() {
|
|
return default_env.Pointer();
|
|
}
|
|
|
|
}
|