1186192ed1
Summary: Replace include/leveldb with include/rocksdb. Test Plan: make clean; make check make clean; make release Differential Revision: https://reviews.facebook.net/D12489
42 lines
918 B
C++
42 lines
918 B
C++
#ifndef STORAGE_LEVELDB_UTIL_STOP_WATCH_H_
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#define STORAGE_LEVELDB_UTIL_STOP_WATCH_H_
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#include "rocksdb/env.h"
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#include "rocksdb/statistics.h"
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namespace leveldb {
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// Auto-scoped.
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// Records the statistic into the corresponding histogram.
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class StopWatch {
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public:
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StopWatch(
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Env * const env,
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std::shared_ptr<Statistics> statistics,
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const Histograms histogram_name) :
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env_(env),
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start_time_(env->NowMicros()),
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statistics_(statistics),
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histogram_name_(histogram_name) {}
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uint64_t ElapsedMicros() {
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return env_->NowMicros() - start_time_;
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}
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~StopWatch() {
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if (statistics_) {
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statistics_->measureTime(histogram_name_, ElapsedMicros());
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}
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}
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private:
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Env* const env_;
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const uint64_t start_time_;
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std::shared_ptr<Statistics> statistics_;
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const Histograms histogram_name_;
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};
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} // namespace leveldb
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#endif // STORAGE_LEVELDB_UTIL_STOP_WATCH_H_
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