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using QsLog for logging

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Luis Ángel San Martín 2013-11-12 23:04:22 +01:00
parent 9db62a6475
commit 308eadd117
14 changed files with 1044 additions and 75 deletions
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248
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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.
#include "QsLog.h"
#include "QsLogDest.h"
#ifdef QS_LOG_SEPARATE_THREAD
#include <QThreadPool>
#include <QRunnable>
#endif
#include <QMutex>
#include <QVector>
#include <QDateTime>
#include <QtGlobal>
#include <cassert>
#include <cstdlib>
#include <stdexcept>
namespace QsLogging
{
typedef QVector<DestinationPtr> DestinationList;
static const char TraceString[] = "TRACE";
static const char DebugString[] = "DEBUG";
static const char InfoString[] = "INFO ";
static const char WarnString[] = "WARN ";
static const char ErrorString[] = "ERROR";
static const char FatalString[] = "FATAL";
// not using Qt::ISODate because we need the milliseconds too
static const QString fmtDateTime("yyyy-MM-ddThh:mm:ss.zzz");
static Logger* sInstance = 0;
static const char* LevelToText(Level theLevel)
{
switch (theLevel) {
case TraceLevel:
return TraceString;
case DebugLevel:
return DebugString;
case InfoLevel:
return InfoString;
case WarnLevel:
return WarnString;
case ErrorLevel:
return ErrorString;
case FatalLevel:
return FatalString;
case OffLevel:
return "";
default: {
assert(!"bad log level");
return InfoString;
}
}
}
#ifdef QS_LOG_SEPARATE_THREAD
class LogWriterRunnable : public QRunnable
{
public:
LogWriterRunnable(QString message, Level level);
virtual void run();
private:
QString mMessage;
Level mLevel;
};
#endif
class LoggerImpl
{
public:
LoggerImpl();
#ifdef QS_LOG_SEPARATE_THREAD
QThreadPool threadPool;
#endif
QMutex logMutex;
Level level;
DestinationList destList;
};
#ifdef QS_LOG_SEPARATE_THREAD
LogWriterRunnable::LogWriterRunnable(QString message, Level level)
: QRunnable()
, mMessage(message)
, mLevel(level)
{
}
void LogWriterRunnable::run()
{
Logger::instance().write(mMessage, mLevel);
}
#endif
LoggerImpl::LoggerImpl()
: level(InfoLevel)
{
// assume at least file + console
destList.reserve(2);
#ifdef QS_LOG_SEPARATE_THREAD
threadPool.setMaxThreadCount(1);
threadPool.setExpiryTimeout(-1);
#endif
}
Logger::Logger()
: d(new LoggerImpl)
{
}
Logger& Logger::instance()
{
if (!sInstance)
sInstance = new Logger;
return *sInstance;
}
void Logger::destroyInstance()
{
delete sInstance;
}
// tries to extract the level from a string log message. If available, conversionSucceeded will
// contain the conversion result.
Level Logger::levelFromLogMessage(const QString& logMessage, bool* conversionSucceeded)
{
if (conversionSucceeded)
*conversionSucceeded = true;
if (logMessage.startsWith(QLatin1String(TraceString)))
return TraceLevel;
if (logMessage.startsWith(QLatin1String(DebugString)))
return DebugLevel;
if (logMessage.startsWith(QLatin1String(InfoString)))
return InfoLevel;
if (logMessage.startsWith(QLatin1String(WarnString)))
return WarnLevel;
if (logMessage.startsWith(QLatin1String(ErrorString)))
return ErrorLevel;
if (logMessage.startsWith(QLatin1String(FatalString)))
return FatalLevel;
if (conversionSucceeded)
*conversionSucceeded = false;
return OffLevel;
}
Logger::~Logger()
{
#ifdef QS_LOG_SEPARATE_THREAD
d->threadPool.waitForDone();
#endif
delete d;
d = 0;
}
void Logger::addDestination(DestinationPtr destination)
{
assert(destination.data());
d->destList.push_back(destination);
}
void Logger::setLoggingLevel(Level newLevel)
{
d->level = newLevel;
}
Level Logger::loggingLevel() const
{
return d->level;
}
//! creates the complete log message and passes it to the logger
void Logger::Helper::writeToLog()
{
const char* const levelName = LevelToText(level);
const QString completeMessage(QString("%1 %2 %3")
.arg(levelName)
.arg(QDateTime::currentDateTime().toString(fmtDateTime))
.arg(buffer)
);
Logger::instance().enqueueWrite(completeMessage, level);
}
Logger::Helper::~Helper()
{
try {
writeToLog();
}
catch(std::exception&) {
// you shouldn't throw exceptions from a sink
assert(!"exception in logger helper destructor");
throw;
}
}
//! directs the message to the task queue or writes it directly
void Logger::enqueueWrite(const QString& message, Level level)
{
#ifdef QS_LOG_SEPARATE_THREAD
LogWriterRunnable *r = new LogWriterRunnable(message, level);
d->threadPool.start(r);
#else
write(message, level);
#endif
}
//! Sends the message to all the destinations. The level for this message is passed in case
//! it's useful for processing in the destination.
void Logger::write(const QString& message, Level level)
{
QMutexLocker lock(&d->logMutex);
for (DestinationList::iterator it = d->destList.begin(),
endIt = d->destList.end();it != endIt;++it) {
(*it)->write(message, level);
}
}
} // end namespace

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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 "2.0b1"
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;
//! The helper forwards the streaming to QDebug and builds the final
//! log message.
class 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

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INCLUDEPATH += $$PWD
#DEFINES += QS_LOG_LINE_NUMBERS # automatically writes the file and line for each log message
#DEFINES += QS_LOG_DISABLE # logging code is replaced with a no-op
DEFINES += QS_LOG_SEPARATE_THREAD # messages are queued and written from a separate thread
SOURCES += $$PWD/QsLogDest.cpp \
$$PWD/QsLog.cpp \
$$PWD/QsLogDestConsole.cpp \
$$PWD/QsLogDestFile.cpp
HEADERS += $$PWD/QSLogDest.h \
$$PWD/QsLog.h \
$$PWD/QsLogDestConsole.h \
$$PWD/QsLogLevel.h \
$$PWD/QsLogDestFile.h \
$$PWD/QsLogDisableForThisFile.h
OTHER_FILES += \
$$PWD/QsLogChanges.txt \
$$PWD/QsLogReadme.txt

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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.
#include "QsLogDest.h"
#include "QsLogDestConsole.h"
#include "QsLogDestFile.h"
#include <QString>
namespace QsLogging
{
//! destination factory
DestinationPtr DestinationFactory::MakeFileDestination(const QString& filePath,
LogRotationOption rotation, const MaxSizeBytes &sizeInBytesToRotateAfter,
const MaxOldLogCount &oldLogsToKeep)
{
if (EnableLogRotation == rotation) {
QScopedPointer<SizeRotationStrategy> logRotation(new SizeRotationStrategy);
logRotation->setMaximumSizeInBytes(sizeInBytesToRotateAfter.size);
logRotation->setBackupCount(oldLogsToKeep.count);
return DestinationPtr(new FileDestination(filePath, RotationStrategyPtr(logRotation.take())));
}
return DestinationPtr(new FileDestination(filePath, RotationStrategyPtr(new NullRotationStrategy)));
}
DestinationPtr DestinationFactory::MakeDebugOutputDestination()
{
return DestinationPtr(new DebugOutputDestination);
}
} // end namespace

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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 QSLOGDEST_H
#define QSLOGDEST_H
#include "QsLogLevel.h"
#include <QSharedPointer>
#include <QtGlobal>
class QString;
#ifdef QSLOG_IS_SHARED_LIBRARY
#define QSLOG_SHARED_OBJECT Q_DECL_EXPORT
#else
#define QSLOG_SHARED_OBJECT /*Q_DECL_IMPORT*/
#endif
namespace QsLogging
{
class QSLOG_SHARED_OBJECT Destination
{
public:
virtual ~Destination(){}
virtual void write(const QString& message, Level level) = 0;
virtual bool isValid() = 0; // returns whether the destination was created correctly
};
typedef QSharedPointer<Destination> DestinationPtr;
// a series of "named" paramaters, to make the file destination creation more readable
enum LogRotationOption
{
DisableLogRotation = 0,
EnableLogRotation = 1
};
struct QSLOG_SHARED_OBJECT MaxSizeBytes
{
MaxSizeBytes() : size(0) {}
MaxSizeBytes(qint64 size_) : size(size_) {}
qint64 size;
};
struct QSLOG_SHARED_OBJECT MaxOldLogCount
{
MaxOldLogCount() : count(0) {}
MaxOldLogCount(int count_) : count(count_) {}
int count;
};
//! Creates logging destinations/sinks. The caller shares ownership of the destinations with the logger.
//! After being added to a logger, the caller can discard the pointers.
class QSLOG_SHARED_OBJECT DestinationFactory
{
public:
static DestinationPtr MakeFileDestination(const QString& filePath,
LogRotationOption rotation = DisableLogRotation,
const MaxSizeBytes &sizeInBytesToRotateAfter = MaxSizeBytes(),
const MaxOldLogCount &oldLogsToKeep = MaxOldLogCount());
static DestinationPtr MakeDebugOutputDestination();
};
} // end namespace
#endif // QSLOGDEST_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.
#include "QsLogDestConsole.h"
#include <QString>
#include <QtGlobal>
#if defined(Q_OS_WIN)
#define WIN32_LEAN_AND_MEAN
#include <Windows.h>
void QsDebugOutput::output( const QString& message )
{
OutputDebugStringW(reinterpret_cast<const WCHAR*>(message.utf16()));
OutputDebugStringW(L"\n");
}
#elif defined(Q_OS_UNIX)
#include <cstdio>
void QsDebugOutput::output( const QString& message )
{
fprintf(stderr, "%s\n", qPrintable(message));
fflush(stderr);
}
#endif
void QsLogging::DebugOutputDestination::write(const QString& message, Level)
{
QsDebugOutput::output(message);
}
bool QsLogging::DebugOutputDestination::isValid()
{
return true;
}

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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 QSLOGDESTCONSOLE_H
#define QSLOGDESTCONSOLE_H
#include "QsLogDest.h"
class QString;
class QsDebugOutput
{
public:
static void output(const QString& a_message);
};
namespace QsLogging
{
// debugger sink
class DebugOutputDestination : public Destination
{
public:
virtual void write(const QString& message, Level level);
virtual bool isValid();
};
}
#endif // QSLOGDESTCONSOLE_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.
#include "QsLogDestFile.h"
#include <QTextCodec>
#include <QDateTime>
#include <QtGlobal>
#include <iostream>
const int QsLogging::SizeRotationStrategy::MaxBackupCount = 10;
QsLogging::RotationStrategy::~RotationStrategy()
{
}
QsLogging::SizeRotationStrategy::SizeRotationStrategy()
: mCurrentSizeInBytes(0)
, mMaxSizeInBytes(0)
, mBackupsCount(0)
{
}
void QsLogging::SizeRotationStrategy::setInitialInfo(const QFile &file)
{
mFileName = file.fileName();
mCurrentSizeInBytes = file.size();
}
void QsLogging::SizeRotationStrategy::includeMessageInCalculation(const QString &message)
{
mCurrentSizeInBytes += message.toUtf8().size();
}
bool QsLogging::SizeRotationStrategy::shouldRotate()
{
return mCurrentSizeInBytes > mMaxSizeInBytes;
}
// Algorithm assumes backups will be named filename.X, where 1 <= X <= mBackupsCount.
// All X's will be shifted up.
void QsLogging::SizeRotationStrategy::rotate()
{
if (!mBackupsCount) {
if (!QFile::remove(mFileName))
std::cerr << "QsLog: backup delete failed " << qPrintable(mFileName);
return;
}
// 1. find the last existing backup than can be shifted up
const QString logNamePattern = mFileName + QString::fromUtf8(".%1");
int lastExistingBackupIndex = 0;
for (int i = 1;i <= mBackupsCount;++i) {
const QString backupFileName = logNamePattern.arg(i);
if (QFile::exists(backupFileName))
lastExistingBackupIndex = qMin(i, mBackupsCount - 1);
else
break;
}
// 2. shift up
for (int i = lastExistingBackupIndex;i >= 1;--i) {
const QString oldName = logNamePattern.arg(i);
const QString newName = logNamePattern.arg(i + 1);
QFile::remove(newName);
const bool renamed = QFile::rename(oldName, newName);
if (!renamed) {
std::cerr << "QsLog: could not rename backup " << qPrintable(oldName)
<< " to " << qPrintable(newName);
}
}
// 3. rename current log file
const QString newName = logNamePattern.arg(1);
if (QFile::exists(newName))
QFile::remove(newName);
if (!QFile::rename(mFileName, newName)) {
std::cerr << "QsLog: could not rename log " << qPrintable(mFileName)
<< " to " << qPrintable(newName);
}
}
QIODevice::OpenMode QsLogging::SizeRotationStrategy::recommendedOpenModeFlag()
{
return QIODevice::Append;
}
void QsLogging::SizeRotationStrategy::setMaximumSizeInBytes(qint64 size)
{
Q_ASSERT(size >= 0);
mMaxSizeInBytes = size;
}
void QsLogging::SizeRotationStrategy::setBackupCount(int backups)
{
Q_ASSERT(backups >= 0);
mBackupsCount = qMin(backups, SizeRotationStrategy::MaxBackupCount);
}
QsLogging::FileDestination::FileDestination(const QString& filePath, RotationStrategyPtr rotationStrategy)
: mRotationStrategy(rotationStrategy)
{
mFile.setFileName(filePath);
if (!mFile.open(QFile::WriteOnly | QFile::Text | mRotationStrategy->recommendedOpenModeFlag()))
std::cerr << "QsLog: could not open log file " << qPrintable(filePath);
mOutputStream.setDevice(&mFile);
mOutputStream.setCodec(QTextCodec::codecForName("UTF-8"));
mRotationStrategy->setInitialInfo(mFile);
}
void QsLogging::FileDestination::write(const QString& message, Level)
{
mRotationStrategy->includeMessageInCalculation(message);
if (mRotationStrategy->shouldRotate()) {
mOutputStream.setDevice(NULL);
mFile.close();
mRotationStrategy->rotate();
if (!mFile.open(QFile::WriteOnly | QFile::Text | mRotationStrategy->recommendedOpenModeFlag()))
std::cerr << "QsLog: could not reopen log file " << qPrintable(mFile.fileName());
mRotationStrategy->setInitialInfo(mFile);
mOutputStream.setDevice(&mFile);
}
mOutputStream << message << endl;
mOutputStream.flush();
}
bool QsLogging::FileDestination::isValid()
{
return mFile.isOpen();
}

101
QsLog/QsLogDestFile.h Normal file
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@ -0,0 +1,101 @@
// 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 QSLOGDESTFILE_H
#define QSLOGDESTFILE_H
#include "QsLogDest.h"
#include <QFile>
#include <QTextStream>
#include <QtGlobal>
#include <QSharedPointer>
namespace QsLogging
{
class RotationStrategy
{
public:
virtual ~RotationStrategy();
virtual void setInitialInfo(const QFile &file) = 0;
virtual void includeMessageInCalculation(const QString &message) = 0;
virtual bool shouldRotate() = 0;
virtual void rotate() = 0;
virtual QIODevice::OpenMode recommendedOpenModeFlag() = 0;
};
// Never rotates file, overwrites existing file.
class NullRotationStrategy : public RotationStrategy
{
public:
virtual void setInitialInfo(const QFile &) {}
virtual void includeMessageInCalculation(const QString &) {}
virtual bool shouldRotate() { return false; }
virtual void rotate() {}
virtual QIODevice::OpenMode recommendedOpenModeFlag() { return QIODevice::Truncate; }
};
// Rotates after a size is reached, keeps a number of <= 10 backups, appends to existing file.
class SizeRotationStrategy : public RotationStrategy
{
public:
SizeRotationStrategy();
static const int MaxBackupCount;
virtual void setInitialInfo(const QFile &file);
virtual void includeMessageInCalculation(const QString &message);
virtual bool shouldRotate();
virtual void rotate();
virtual QIODevice::OpenMode recommendedOpenModeFlag();
void setMaximumSizeInBytes(qint64 size);
void setBackupCount(int backups);
private:
QString mFileName;
qint64 mCurrentSizeInBytes;
qint64 mMaxSizeInBytes;
int mBackupsCount;
};
typedef QSharedPointer<RotationStrategy> RotationStrategyPtr;
// file message sink
class FileDestination : public Destination
{
public:
FileDestination(const QString& filePath, RotationStrategyPtr rotationStrategy);
virtual void write(const QString& message, Level level);
virtual bool isValid();
private:
QFile mFile;
QTextStream mOutputStream;
QSharedPointer<RotationStrategy> mRotationStrategy;
};
}
#endif // QSLOGDESTFILE_H

22
QsLog/QsLogDisableForThisFile.h Normal file
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@ -0,0 +1,22 @@
#ifndef QSLOGDISABLEFORTHISFILE_H
#define QSLOGDISABLEFORTHISFILE_H
#include <QtDebug>
// When included AFTER QsLog.h, this file will disable logging in that C++ file. When included
// before, it will lead to compiler warnings or errors about macro redefinitions.
#undef QLOG_TRACE
#undef QLOG_DEBUG
#undef QLOG_INFO
#undef QLOG_WARN
#undef QLOG_ERROR
#undef QLOG_FATAL
#define QLOG_TRACE() if (1) {} else qDebug()
#define QLOG_DEBUG() if (1) {} else qDebug()
#define QLOG_INFO() if (1) {} else qDebug()
#define QLOG_WARN() if (1) {} else qDebug()
#define QLOG_ERROR() if (1) {} else qDebug()
#define QLOG_FATAL() if (1) {} else qDebug()
#endif // QSLOGDISABLEFORTHISFILE_H

45
QsLog/QsLogLevel.h Normal file
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@ -0,0 +1,45 @@
// 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 QSLOGLEVEL_H
#define QSLOGLEVEL_H
namespace QsLogging
{
enum Level
{
TraceLevel = 0,
DebugLevel,
InfoLevel,
WarnLevel,
ErrorLevel,
FatalLevel,
OffLevel
};
}
#endif // QSLOGLEVEL_H

30
QsLog/QsLogSharedLibrary.pro Normal file
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@ -0,0 +1,30 @@
# This pro file will build QsLog as a shared library
include(QsLog.pri)
TARGET = QsLog
VERSION = "2.0.0"
QT -= gui
CONFIG -= console
CONFIG -= app_bundle
CONFIG += shared
TEMPLATE = lib
DESTDIR = $$PWD/build-QsLogShared
OBJECTS_DIR = $$DESTDIR/obj
unix:!macx {
# make install will install the shared object in the appropriate folders
headers.files = QsLog.h QsLogDest.h QsLogLevel.h
headers.path = /usr/include/$(QMAKE_TARGET)
other_files.files = *.txt
other_files.path = /usr/local/share/$(QMAKE_TARGET)
contains(QT_ARCH, x86_64) {
target.path = /usr/lib64
} else {
target.path = /usr/lib
}
INSTALLS += headers target other_files
}

1
YACReaderLibrary/YACReaderLibrary.pro
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@ -125,6 +125,7 @@ include(./server/server.pri)
include(../custom_widgets/custom_widgets_yacreaderlibrary.pri)
include(../compressed_archive/wrapper.pri)
include(./comic_vine/comic_vine.pri)
include(../QsLog/QsLog.pri)
RESOURCES += images.qrc files.qrc
win32:RESOURCES += images_win.qrc

110
YACReaderLibrary/main.cpp
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@ -4,99 +4,54 @@
#include <QTranslator>
#include <QSettings>
#include <QLocale>
#include <QTextStream>
#include <QtDebug>
#include <QDir>
#include <QDateTime>
#if QT_VERSION >= 0x050000
#include <QStandardPaths>
#include <QStandardPaths>
#else
#include <QDesktopServices>
#include <QDesktopServices>
#endif
#include "yacreader_global.h"
#include "startup.h"
#include "yacreader_local_server.h"
#include "comic_db.h"
#include "QsLog.h"
#include "QsLogDest.h"
#define PICTUREFLOW_QT4 1
#if QT_VERSION >= 0x050000
void yacreaderMessageHandler(QtMsgType type, const QMessageLogContext &context, const QString &msg)
{
QString txt;
switch (type) {
case QtDebugMsg:
txt = QString("Debug: %1").arg(msg);
break;
case QtWarningMsg:
txt = QString("Warning: %1").arg(msg);
break;
case QtCriticalMsg:
txt = QString("Critical: %1").arg(msg);
break;
case QtFatalMsg:
txt = QString("Fatal: %1").arg(msg);
break;
}
QDir().mkpath(QStandardPaths::writableLocation(QStandardPaths::ConfigLocation));
QFile outFile(QStandardPaths::writableLocation(QStandardPaths::ConfigLocation)+"/yacreaderlibrary.log");
outFile.open(QIODevice::WriteOnly | QIODevice::Append);
QTextStream ts(&outFile);
ts << QDateTime::currentDateTime().toString() << " - " << txt << endl;
}
#else
void yacreaderMessageHandler(QtMsgType type, const char * msg)
{
QString txt;
switch (type) {
case QtDebugMsg:
txt = QString("Debug: %1").arg(msg);
break;
case QtWarningMsg:
txt = QString("Warning: %1").arg(msg);
break;
case QtCriticalMsg:
txt = QString("Critical: %1").arg(msg);
break;
case QtFatalMsg:
txt = QString("Fatal: %1").arg(msg);
break;
}
QDir().mkpath(QDesktopServices::storageLocation(QDesktopServices::DataLocation));
QFile outFile(QDesktopServices::storageLocation(QDesktopServices::DataLocation)+"/yacreaderlibrary.log");
outFile.open(QIODevice::WriteOnly | QIODevice::Append);
QTextStream ts(&outFile);
ts << QDateTime::currentDateTime().toString() << " - " << txt << endl;
}
#endif
//interfaz al servidor
Startup * s;
using namespace QsLogging;
int main( int argc, char ** argv )
{
QApplication app( argc, argv );
app.setApplicationName("YACReaderLibrary");
app.setOrganizationName("YACReader");
#if QT_VERSION >= 0x050000
qInstallMessageHandler(yacreaderMessageHandler);
QString destLog = QStandardPaths::writableLocation(QStandardPaths::ConfigLocation)+"/yacreaderlibrary.log";
QString destErr = QStandardPaths::writableLocation(QStandardPaths::ConfigLocation)+"/yacreaderlibrary.err";
QDir().mkpath(QStandardPaths::writableLocation(QStandardPaths::ConfigLocation));
#else
qInstallMsgHandler(yacreaderMessageHandler);
QString destLog = QDesktopServices::storageLocation(QDesktopServices::DataLocation)+"/yacreaderlibrary.log";
QString destErr = QDesktopServices::storageLocation(QDesktopServices::DataLocation)+"/yacreaderlibrary.err";
QDir().mkpath(QDesktopServices::storageLocation(QDesktopServices::DataLocation));
#endif
qDebug() << "YACReaderLibrary started" << endl;
Logger& logger = Logger::instance();
logger.setLoggingLevel(QsLogging::TraceLevel);
DestinationPtr fileDestination(DestinationFactory::MakeFileDestination(
destLog, EnableLogRotation, MaxSizeBytes(2048), MaxOldLogCount(2)));
DestinationPtr debugDestination(DestinationFactory::MakeDebugOutputDestination());
logger.addDestination(debugDestination);
logger.addDestination(fileDestination);
QTranslator translator;
QString sufix = QLocale::system().name();
@ -122,9 +77,14 @@ int main( int argc, char ** argv )
s->start();
}
#endif
QLOG_INFO() << "YACReaderLibrary attempting to start";
if(YACReaderLocalServer::isRunning()) //sólo se permite una instancia de YACReaderLibrary
return 0;
{
QLOG_WARN() << "another instance of YACReaderLibrary is running";
QsLogging::Logger::destroyInstance();
return 0;
}
QLOG_INFO() << "YACReaderLibrary starting";
YACReaderLocalServer * localServer = new YACReaderLocalServer();
@ -135,8 +95,6 @@ int main( int argc, char ** argv )
//connections to localServer
mw->show();
/*mw->resize(800,480);
mw->showMaximized();*/
int ret = app.exec();
@ -144,7 +102,9 @@ int main( int argc, char ** argv )
s->stop();
delete s;
qDebug() << "YACReaderLibrary closed" << endl;
QLOG_INFO() << "YACReaderLibrary closed";
QsLogging::Logger::destroyInstance();
return ret;
}