138 lines
3.5 KiB
C++
138 lines
3.5 KiB
C++
// Copyright (c) 2010, Razvan Petru
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// All rights reserved.
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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// * Redistributions of source code must retain the above copyright notice, this
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// list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice, this
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// list of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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// * The name of the contributors may not be used to endorse or promote products
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// derived from this software without specific prior written permission.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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// IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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// OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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// OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "QsLog.h"
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#include "QsLogDest.h"
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#include <QMutex>
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#include <QList>
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#include <QDateTime>
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#include <QtGlobal>
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#include <cassert>
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#include <cstdlib>
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#include <stdexcept>
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namespace QsLogging
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{
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typedef QList<Destination *> DestinationList;
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static const char *LevelStrings[] = {"TRACE", "DEBUG", "INFO", "WARN", "ERROR", "FATAL"
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"UNKNOWN"};
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// not using Qt::ISODate because we need the milliseconds too
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static const QString fmtDateTime("hhhh:mm:ss.zzz");
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static const char *LevelToText(Level theLevel)
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{
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if (theLevel > FatalLevel)
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{
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assert(!"bad log level");
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return LevelStrings[UnknownLevel];
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}
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return LevelStrings[theLevel];
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}
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class LoggerImpl
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{
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public:
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LoggerImpl() : level(InfoLevel)
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{
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}
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QMutex logMutex;
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Level level;
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DestinationList destList;
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};
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Logger::Logger() : d(new LoggerImpl)
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{
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}
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Logger::~Logger()
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{
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delete d;
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}
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void Logger::addDestination(Destination *destination)
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{
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assert(destination);
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d->destList.push_back(destination);
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}
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void Logger::setLoggingLevel(Level newLevel)
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{
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d->level = newLevel;
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}
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Level Logger::loggingLevel() const
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{
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return d->level;
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}
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//! creates the complete log message and passes it to the logger
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void Logger::Helper::writeToLog()
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{
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const char *const levelName = LevelToText(level);
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const QString completeMessage(QString("%1\t%2").arg(levelName, 5).arg(buffer));
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Logger &logger = Logger::instance();
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QMutexLocker lock(&logger.d->logMutex);
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logger.write(completeMessage);
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}
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Logger::Helper::Helper(Level logLevel) : level(logLevel), qtDebug(&buffer)
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{
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}
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Logger::Helper::~Helper()
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{
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try
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{
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writeToLog();
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}
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catch (std::exception &e)
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{
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// you shouldn't throw exceptions from a sink
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Q_UNUSED(e);
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assert(!"exception in logger helper destructor");
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throw;
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}
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}
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//! sends the message to all the destinations
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void Logger::write(const QString &message)
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{
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for (DestinationList::iterator it = d->destList.begin(), endIt = d->destList.end();
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it != endIt; ++it)
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{
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if (!(*it))
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{
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assert(!"null log destination");
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continue;
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}
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(*it)->write(message);
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}
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}
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} // end namespace
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