a9866b721b
Summary: Use only the counter mechanism. Do away with incNumFileOpens, incNumFileClose, incNumFileErrors s/NULL/nullptr/g in db/table_cache.cc Test Plan: make clean check Reviewers: dhruba, heyongqiang, emayanke Reviewed By: dhruba CC: leveldb Differential Revision: https://reviews.facebook.net/D8841
61 lines
1.7 KiB
C++
61 lines
1.7 KiB
C++
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#ifndef LEVELDB_STORAGE_DB_DB_STATISTICS_H_
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#define LEVELDB_STORAGE_DB_DB_STATISTICS_H_
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#include <cassert>
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#include <stdlib.h>
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#include <vector>
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#include "leveldb/statistics.h"
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#include "util/histogram.h"
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#include "port/port.h"
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#include "util/mutexlock.h"
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namespace leveldb {
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class DBStatistics: public Statistics {
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public:
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DBStatistics() : allTickers_(TICKER_ENUM_MAX),
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allHistograms_(HISTOGRAM_ENUM_MAX) { }
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virtual ~DBStatistics() {}
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virtual long getTickerCount(Tickers tickerType) {
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assert(tickerType < TICKER_ENUM_MAX);
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return allTickers_[tickerType].getCount();
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}
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virtual void recordTick(Tickers tickerType, uint64_t count) {
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assert(tickerType < TICKER_ENUM_MAX);
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allTickers_[tickerType].recordTick(count);
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}
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virtual void measureTime(Histograms histogramType, uint64_t value) {
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assert(histogramType < HISTOGRAM_ENUM_MAX);
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allHistograms_[histogramType].Add(value);
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}
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virtual void measureTime(Histograms histogramType, double value) {
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assert(histogramType < HISTOGRAM_ENUM_MAX);
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allHistograms_[histogramType].Add(value);
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}
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virtual void histogramData(Histograms histogramType,
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HistogramData * const data) {
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assert(histogramType < HISTOGRAM_ENUM_MAX);
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allHistograms_[histogramType].Data(data);
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}
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std::vector<Ticker> allTickers_;
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std::vector<HistogramImpl> allHistograms_;
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};
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} // namespace leveldb
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#endif // LEVELDB_STORAGE_DB_DB_STATISTICS_H_
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