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Diffstat (limited to 'logger/QsLog.h')
| -rw-r--r-- | logger/QsLog.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/logger/QsLog.h b/logger/QsLog.h new file mode 100644 index 00000000..a18c08de --- /dev/null +++ b/logger/QsLog.h @@ -0,0 +1,130 @@ +// Copyright (c) 2010, Razvan Petru +// 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. +// * The name of the contributors may not 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 HOLDER 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. + +#pragma once + +#include <QDebug> +#include <QString> + +namespace QsLogging +{ +class Destination; +enum Level +{ + TraceLevel = 0, + DebugLevel, + InfoLevel, + WarnLevel, + ErrorLevel, + FatalLevel, + UnknownLevel +}; + +class LoggerImpl; // d pointer +class Logger +{ +public: + static Logger &instance() + { + static Logger staticLog; + return staticLog; + } + + //! Adds a log message destination. Don't add null destinations. + void addDestination(Destination *destination); + //! Logging at a level < 'newLevel' will be ignored + void setLoggingLevel(Level newLevel); + //! The default level is INFO + Level loggingLevel() const; + + //! The helper forwards the streaming to QDebug and builds the final + //! log message. + class Helper + { + public: + explicit Helper(Level logLevel); + ~Helper(); + QDebug &stream() + { + return qtDebug; + } + + private: + void writeToLog(); + + Level level; + QString buffer; + QDebug qtDebug; + }; + +private: + Logger(); + Logger(const Logger &); + Logger &operator=(const Logger &); + ~Logger(); + + void write(const QString &message); + + LoggerImpl *d; +}; + +} // end namespace + +#define QLOG_TRACE() \ + if (QsLogging::Logger::instance().loggingLevel() <= QsLogging::TraceLevel) \ + QsLogging::Logger::Helper(QsLogging::TraceLevel).stream() +#define QLOG_DEBUG() \ + if (QsLogging::Logger::instance().loggingLevel() <= QsLogging::DebugLevel) \ + QsLogging::Logger::Helper(QsLogging::DebugLevel).stream() +#define QLOG_INFO() \ + if (QsLogging::Logger::instance().loggingLevel() <= QsLogging::InfoLevel) \ + QsLogging::Logger::Helper(QsLogging::InfoLevel).stream() +#define QLOG_WARN() \ + if (QsLogging::Logger::instance().loggingLevel() <= QsLogging::WarnLevel) \ + QsLogging::Logger::Helper(QsLogging::WarnLevel).stream() +#define QLOG_ERROR() \ + if (QsLogging::Logger::instance().loggingLevel() <= QsLogging::ErrorLevel) \ + QsLogging::Logger::Helper(QsLogging::ErrorLevel).stream() +#define QLOG_FATAL() QsLogging::Logger::Helper(QsLogging::FatalLevel).stream() + +/* +#define QLOG_TRACE() \ + if (QsLogging::Logger::instance().loggingLevel() <= QsLogging::TraceLevel) \ + QsLogging::Logger::Helper(QsLogging::TraceLevel).stream() << __FILE__ << '@' << __LINE__ +#define QLOG_DEBUG() \ + if (QsLogging::Logger::instance().loggingLevel() <= QsLogging::DebugLevel) \ + QsLogging::Logger::Helper(QsLogging::DebugLevel).stream() << __FILE__ << '@' << __LINE__ +#define QLOG_INFO() \ + if (QsLogging::Logger::instance().loggingLevel() <= QsLogging::InfoLevel) \ + QsLogging::Logger::Helper(QsLogging::InfoLevel).stream() << __FILE__ << '@' << __LINE__ +#define QLOG_WARN() \ + if (QsLogging::Logger::instance().loggingLevel() <= QsLogging::WarnLevel) \ + QsLogging::Logger::Helper(QsLogging::WarnLevel).stream() << __FILE__ << '@' << __LINE__ +#define QLOG_ERROR() \ + if (QsLogging::Logger::instance().loggingLevel() <= QsLogging::ErrorLevel) \ + QsLogging::Logger::Helper(QsLogging::ErrorLevel).stream() << __FILE__ << '@' << __LINE__ +#define QLOG_FATAL() \ + QsLogging::Logger::Helper(QsLogging::FatalLevel).stream() << __FILE__ << '@' << __LINE__ +*/
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