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rocksdb/include/leveldb/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 STORAGE_LEVELDB_INCLUDE_STATISTICS_H_
#define STORAGE_LEVELDB_INCLUDE_STATISTICS_H_
namespace leveldb {
// Analyze the performance of a db
class Statistics {
public:
// Create an Statistics object with default values for all fields.
Statistics() : numFileOpens_(0), numFileCloses_(0),
numFileErrors_(0) {}
virtual void incNumFileOpens() = 0;
virtual void incNumFileCloses() = 0;
virtual void incNumFileErrors() = 0;
virtual long getNumFileOpens() { return numFileOpens_;}
virtual long getNumFileCloses() { return numFileCloses_;}
virtual long getNumFileErrors() { return numFileErrors_;}
protected:
long numFileOpens_;
long numFileCloses_;
long numFileErrors_;
};
} // namespace leveldb
#endif // STORAGE_LEVELDB_INCLUDE_STATISTICS_H_