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arangodb/lib/Logger/LogMacros.h

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////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
/// Copyright 2004-2013 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 Dr. Frank Celler
///
/// Portions of the code are:
///
/// Copyright (c) 1999, Google Inc.
/// All rights reserved.
//
/// Redistribution and use in source and binary forms, with or without
/// modification, are permitted provided that the following conditions are
/// met:
//
/// * Redistributions of source code must retain the above copyright
/// notice, this list of conditions and the following disclaimer.
/// * Redistributions in binary form must reproduce the above
/// copyright notice, this list of conditions and the following
/// disclaimer
/// in the documentation and/or other materials provided with the
/// distribution.
/// * Neither the name of Google Inc. nor the names of its
/// contributors may be used to endorse or promote products derived
/// from this software without specific prior written permission.
///
/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
/// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
/// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
/// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
/// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
/// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
/// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
/// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
/// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
/// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
///
/// Author: Ray Sidney
////////////////////////////////////////////////////////////////////////////////
#ifndef ARANGODB_LOGGER_LOG_MACROS_H
#define ARANGODB_LOGGER_LOG_MACROS_H 1
#include "Logger.h"
////////////////////////////////////////////////////////////////////////////////
/// @brief logs a message for a topic
////////////////////////////////////////////////////////////////////////////////
#define ARANGO_INTERNAL_LOG_HELPER(id) \
::arangodb::Logger::LINE(__LINE__) \
<< ::arangodb::Logger::FILE(__FILE__) \
<< ::arangodb::Logger::FUNCTION(__FUNCTION__)
#define LOG_TOPIC(id, level, logger) \
!::arangodb::Logger::isEnabled((::arangodb::LogLevel::level), (logger)) \
? (void)nullptr \
: ::arangodb::LogVoidify() & (::arangodb::LoggerStream() \
<< (::arangodb::LogLevel::level) \
<< ( ::arangodb::Logger::getShowIds() ? "[" id "] " : "" )) \
<< (logger) \
<< ARANGO_INTERNAL_LOG_HELPER(id)
////////////////////////////////////////////////////////////////////////////////
/// @brief logs a message for a topic given that a condition is true
////////////////////////////////////////////////////////////////////////////////
#define LOG_TOPIC_IF(id, level, logger, cond) \
!(::arangodb::Logger::isEnabled((::arangodb::LogLevel::level), (logger)) && (cond)) \
? (void)nullptr \
: ::arangodb::LogVoidify() & (::arangodb::LoggerStream() \
<< (::arangodb::LogLevel::level) \
<< ( ::arangodb::Logger::getShowIds() ? "[" id "] " : "" )) \
<< (logger) \
<< ARANGO_INTERNAL_LOG_HELPER(id)
////////////////////////////////////////////////////////////////////////////////
/// @brief logs a message for debugging during development
////////////////////////////////////////////////////////////////////////////////
#ifdef ARANGODB_ENABLE_MAINTAINER_MODE
#define LOG_DEVEL_LEVEL ERR
#else
#define LOG_DEVEL_LEVEL DEBUG
#endif
#define LOG_DEVEL \
LOG_TOPIC("xxxxx", LOG_DEVEL_LEVEL, ::arangodb::Logger::FIXME) << "###### "
#define LOG_DEVEL_IF(cond) \
LOG_TOPIC_IF("xxxxx", LOG_DEVEL_LEVEL, ::arangodb::Logger::FIXME, (cond)) << "###### "
////////////////////////////////////////////////////////////////////////////////
/// @brief helper class for macros
////////////////////////////////////////////////////////////////////////////////
namespace arangodb {
class LoggerStream;
class LogVoidify {
public:
LogVoidify() {}
void operator&(LoggerStream const&) {}
};
} // namespace arangodb
#endif