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QsLog.h
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QsLog.h
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// Copyright (c) 2013, 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.
#ifndef QSLOG_H
#define QSLOG_H
#include "QsLogLevel.h"
#include "QsLogDest.h"
#include <QDebug>
#include <QString>
#define QS_LOG_VERSION "2.0b3"
namespace QsLogging
{
class Destination;
class LoggerImpl; // d pointer
class QSLOG_SHARED_OBJECT Logger
{
public:
static Logger& instance();
static void destroyInstance();
static Level levelFromLogMessage(const QString& logMessage, bool* conversionSucceeded = 0);
~Logger();
//! Adds a log message destination. Don't add null destinations.
void addDestination(DestinationPtr destination);
//! Logging at a level < 'newLevel' will be ignored
void setLoggingLevel(Level newLevel);
//! The default level is INFO
Level loggingLevel() const;
//! Set to false to disable timestamp inclusion in log messages
void setIncludeTimestamp(bool e);
//! Default value is true.
bool includeTimestamp() const;
//! Set to false to disable log level inclusion in log messages
void setIncludeLogLevel(bool l);
//! Default value is true.
bool includeLogLevel() const;
//! The helper forwards the streaming to QDebug and builds the final
//! log message.
class QSLOG_SHARED_OBJECT Helper
{
public:
explicit Helper(Level logLevel) :
level(logLevel),
qtDebug(&buffer)
{}
~Helper();
QDebug& stream(){ return qtDebug; }
private:
void writeToLog();
Level level;
QString buffer;
QDebug qtDebug;
};
private:
Logger();
Logger(const Logger&); // not available
Logger& operator=(const Logger&); // not available
void enqueueWrite(const QString& message, Level level);
void write(const QString& message, Level level);
LoggerImpl* d;
friend class LogWriterRunnable;
};
} // end namespace
//! Logging macros: define QS_LOG_LINE_NUMBERS to get the file and line number
//! in the log output.
#ifndef QS_LOG_LINE_NUMBERS
#define QLOG_TRACE() \
if (QsLogging::Logger::instance().loggingLevel() > QsLogging::TraceLevel) {} \
else QsLogging::Logger::Helper(QsLogging::TraceLevel).stream()
#define QLOG_DEBUG() \
if (QsLogging::Logger::instance().loggingLevel() > QsLogging::DebugLevel) {} \
else QsLogging::Logger::Helper(QsLogging::DebugLevel).stream()
#define QLOG_INFO() \
if (QsLogging::Logger::instance().loggingLevel() > QsLogging::InfoLevel) {} \
else QsLogging::Logger::Helper(QsLogging::InfoLevel).stream()
#define QLOG_WARN() \
if (QsLogging::Logger::instance().loggingLevel() > QsLogging::WarnLevel) {} \
else QsLogging::Logger::Helper(QsLogging::WarnLevel).stream()
#define QLOG_ERROR() \
if (QsLogging::Logger::instance().loggingLevel() > QsLogging::ErrorLevel) {} \
else QsLogging::Logger::Helper(QsLogging::ErrorLevel).stream()
#define QLOG_FATAL() \
if (QsLogging::Logger::instance().loggingLevel() > QsLogging::FatalLevel) {} \
else QsLogging::Logger::Helper(QsLogging::FatalLevel).stream()
#else
#define QLOG_TRACE() \
if (QsLogging::Logger::instance().loggingLevel() > QsLogging::TraceLevel) {} \
else QsLogging::Logger::Helper(QsLogging::TraceLevel).stream() << __FILE__ << '@' << __LINE__
#define QLOG_DEBUG() \
if (QsLogging::Logger::instance().loggingLevel() > QsLogging::DebugLevel) {} \
else QsLogging::Logger::Helper(QsLogging::DebugLevel).stream() << __FILE__ << '@' << __LINE__
#define QLOG_INFO() \
if (QsLogging::Logger::instance().loggingLevel() > QsLogging::InfoLevel) {} \
else QsLogging::Logger::Helper(QsLogging::InfoLevel).stream() << __FILE__ << '@' << __LINE__
#define QLOG_WARN() \
if (QsLogging::Logger::instance().loggingLevel() > QsLogging::WarnLevel) {} \
else QsLogging::Logger::Helper(QsLogging::WarnLevel).stream() << __FILE__ << '@' << __LINE__
#define QLOG_ERROR() \
if (QsLogging::Logger::instance().loggingLevel() > QsLogging::ErrorLevel) {} \
else QsLogging::Logger::Helper(QsLogging::ErrorLevel).stream() << __FILE__ << '@' << __LINE__
#define QLOG_FATAL() \
if (QsLogging::Logger::instance().loggingLevel() > QsLogging::FatalLevel) {} \
else QsLogging::Logger::Helper(QsLogging::FatalLevel).stream() << __FILE__ << '@' << __LINE__
#endif
#ifdef QS_LOG_DISABLE
#include "QsLogDisableForThisFile.h"
#endif
#endif // QSLOG_H