Method RecordReadSample

src/leveldb/db/db_impl.cc:1170–1175

}

void DBImpl::RecordReadSample(Slice key) {
  MutexLock l(&mutex_);
  if (versions_->current()->RecordReadSample(key)) {
    MaybeScheduleCompaction();
  }
}

const Snapshot* DBImpl::GetSnapshot() {
  MutexLock l(&mutex_);