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arangodb/lib/Basics/RocksDBLogger.h

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////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
/// http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
///
/// @author Jan Steemann
////////////////////////////////////////////////////////////////////////////////
#ifndef ARANGODB_BASICS_ROCKSDB_LOGGER_H
#define ARANGODB_BASICS_ROCKSDB_LOGGER_H 1
#include "Basics/Common.h"
#include <rocksdb/env.h>
namespace arangodb {
class RocksDBLogger final : public rocksdb::Logger {
public:
explicit RocksDBLogger(rocksdb::InfoLogLevel level);
~RocksDBLogger();
void disable() { _enabled = false; }
void enable() { _enabled = true; }
// intentionally do not log header information here
// as this does not seem to honor the log level correctly
void LogHeader(const char* format, va_list ap) override {}
void Logv(char const* format, va_list ap) override;
void Logv(const rocksdb::InfoLogLevel, char const* format, va_list ap) override;
// nothing to do here, as ArangoDB logger infrastructure takes care of
// flushing itself
void Flush() override {}
private:
std::atomic<bool> _enabled;
};
} // namespace arangodb
#endif