rocksdb/db/db_statistics.h

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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#ifndef LEVELDB_STORAGE_DB_DB_STATISTICS_H_
#define LEVELDB_STORAGE_DB_DB_STATISTICS_H_
#include <cassert>
#include <stdlib.h>
#include <vector>
#include <memory>
#include "leveldb/statistics.h"
#include "util/histogram.h"
#include "port/port.h"
#include "util/mutexlock.h"
namespace leveldb {
class DBStatistics: public Statistics {
public:
DBStatistics() : allTickers_(TICKER_ENUM_MAX),
allHistograms_(HISTOGRAM_ENUM_MAX) { }
virtual ~DBStatistics() {}
virtual long getTickerCount(Tickers tickerType) {
assert(tickerType < TICKER_ENUM_MAX);
return allTickers_[tickerType].getCount();
}
virtual void recordTick(Tickers tickerType, uint64_t count) {
assert(tickerType < TICKER_ENUM_MAX);
allTickers_[tickerType].recordTick(count);
}
virtual void measureTime(Histograms histogramType, uint64_t value) {
assert(histogramType < HISTOGRAM_ENUM_MAX);
allHistograms_[histogramType].Add(value);
}
virtual void histogramData(Histograms histogramType,
HistogramData * const data) {
assert(histogramType < HISTOGRAM_ENUM_MAX);
allHistograms_[histogramType].Data(data);
}
std::vector<Ticker> allTickers_;
std::vector<HistogramImpl> allHistograms_;
};
std::shared_ptr<Statistics> CreateDBStatistics() {
return std::make_shared<DBStatistics>();
}
} // namespace leveldb
#endif // LEVELDB_STORAGE_DB_DB_STATISTICS_H_