83681bf9ef
Summary: I'm separating code-cleanup part of https://reviews.facebook.net/D14517. This will make D14517 easier to understand and this diff easier to review. Test Plan: make check Reviewers: haobo, kailiu, sdong, dhruba, tnovak Reviewed By: tnovak CC: leveldb Differential Revision: https://reviews.facebook.net/D15099
54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
// Copyright (c) 2013, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under the BSD-style license found in the
|
|
// LICENSE file in the root directory of this source tree. An additional grant
|
|
// of patent rights can be found in the PATENTS file in the same directory.
|
|
//
|
|
#pragma once
|
|
#include "rocksdb/statistics.h"
|
|
#include "util/histogram.h"
|
|
#include "util/mutexlock.h"
|
|
|
|
#define UNLIKELY(val) (__builtin_expect((val), 0))
|
|
|
|
namespace rocksdb {
|
|
|
|
class StatisticsImpl : public Statistics {
|
|
public:
|
|
StatisticsImpl();
|
|
virtual ~StatisticsImpl();
|
|
|
|
virtual long getTickerCount(Tickers tickerType);
|
|
virtual void setTickerCount(Tickers tickerType, uint64_t count);
|
|
virtual void recordTick(Tickers tickerType, uint64_t count);
|
|
virtual void measureTime(Histograms histogramType, uint64_t value);
|
|
virtual void histogramData(Histograms histogramType,
|
|
HistogramData* const data);
|
|
|
|
private:
|
|
std::atomic_uint_fast64_t tickers_[TICKER_ENUM_MAX];
|
|
HistogramImpl histograms_[HISTOGRAM_ENUM_MAX];
|
|
};
|
|
|
|
// Utility functions
|
|
inline void MeasureTime(Statistics* statistics, Histograms histogramType,
|
|
uint64_t value) {
|
|
if (statistics) {
|
|
statistics->measureTime(histogramType, value);
|
|
}
|
|
}
|
|
|
|
inline void RecordTick(Statistics* statistics, Tickers ticker,
|
|
uint64_t count = 1) {
|
|
if (statistics) {
|
|
statistics->recordTick(ticker, count);
|
|
}
|
|
}
|
|
|
|
inline void SetTickerCount(Statistics* statistics, Tickers ticker,
|
|
uint64_t count) {
|
|
if (statistics) {
|
|
statistics->setTickerCount(ticker, count);
|
|
}
|
|
}
|
|
}
|