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neal-zhu 5 years ago
parent
commit
177cd08629
1 changed files with 7 additions and 6 deletions
  1. +7
    -6
      db/version_set.cc

+ 7
- 6
db/version_set.cc View File

@ -328,7 +328,7 @@ Status Version::Get(const ReadOptions& options, const LookupKey& k,
Slice ikey = k.internal_key();
Slice user_key = k.user_key();
const Comparator* ucmp = vset_->icmp_.user_comparator();
stats->seek_file = nullptr;
stats->seek_file_level = -1;
@ -339,16 +339,17 @@ Status Version::Get(const ReadOptions& options, const LookupKey& k,
Slice user_key;
const Comparator* ucmp;
std::string* value;
FileMetaData *last_file_read;
FileMetaData* last_file_read;
int last_file_level;
VersionSet *vset;
VersionSet* vset;
Status s;
static bool Match(void* arg, int level, FileMetaData* f) {
State* state = reinterpret_cast<State*>(arg);
if (state->last_file_read != nullptr && state->stats->seek_file == nullptr) {
if (state->last_file_read != nullptr &&
state->stats->seek_file == nullptr) {
// We have had more than one seek for this read. Charge the 1st file.
state->stats->seek_file = state->last_file_read;
state->stats->seek_file_level = state->last_file_level;
@ -371,7 +372,7 @@ Status Version::Get(const ReadOptions& options, const LookupKey& k,
}
switch (saver.state) {
case kNotFound:
return true; // Keep saerching in other files
return true; // Keep saerching in other files
case kFound:
state->s = s;
return false;
@ -395,7 +396,7 @@ Status Version::Get(const ReadOptions& options, const LookupKey& k,
state.ucmp = ucmp;
state.value = value;
state.vset = vset_;
ForEachOverlapping(user_key, ikey, &state, &State::Match);
return state.s;

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