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/******************************************************************************
*
* package: Log4Qt
* file: mainthreadappender.h
* created: Febrary 2011
* author: Andreas Bacher
*
*
* Copyright 2011 Andreas Bacher
*
* 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.
*
******************************************************************************/
#ifndef LOG4QT_MAINTHREADAPPENDER_H
#define LOG4QT_MAINTHREADAPPENDER_H
/******************************************************************************
* Dependencies
******************************************************************************/
#include "appenderskeleton.h"
#include "helpers/appenderattachable.h"
#include <QtCore/QQueue>
#include <QtCore/QMutex>
/******************************************************************************
* Declarations
******************************************************************************/
namespace Log4Qt
{
/*!
* \brief The class MainThreadAppender uses the QEvent system to write
* log from not main threads within the main thread.
*
*
* \note All the functions declared in this class are thread-safe.
*
* \note The ownership and lifetime of objects of this class are managed.
* See \ref Ownership "Object ownership" for more details.
*/
class LOG4QT_EXPORT MainThreadAppender : public AppenderSkeleton, public AppenderAttachable
{
Q_OBJECT
public:
MainThreadAppender(QObject *parent = 0);
virtual ~MainThreadAppender();
virtual bool requiresLayout() const;
virtual void activateOptions();
virtual void close();
/*!
* Tests if all entry conditions for using append() in this class are
* met.
*
* If a conditions is not met, an error is logged and the function
* returns false. Otherwise the result of
* AppenderSkeleton::checkEntryConditions() is returned.
*
* The checked conditions are:
* - none
*
* The function is called as part of the checkEntryConditions() chain
* started by AppenderSkeleton::doAppend().
*
* \sa AppenderSkeleton::doAppend(),
* AppenderSkeleton::checkEntryConditions()
*/
virtual bool checkEntryConditions() const;
protected:
virtual void append(const LoggingEvent &rEvent);
#ifndef QT_NO_DEBUG_STREAM
/*!
* Writes all object member variables to the given debug stream
* \a rDebug and returns the stream.
*
* <tt>
* %MainThreadAppender(name:"WA" encoding:"" immediateFlush:true
* isactive:false isclosed:false layout:"TTCC"
* referencecount:1 threshold:"NULL"
* writer:0x0)
* </tt>
* \sa QDebug, operator<<(QDebug debug, const LogObject &rLogObject )
*/
virtual QDebug debug(QDebug &rDebug) const;
#endif // QT_NO_DEBUG_STREAM
private:
Q_DISABLE_COPY(MainThreadAppender)
};
/**************************************************************************
* Operators, Helper
**************************************************************************/
/**************************************************************************
* Inline
**************************************************************************/
} // namespace Log4Qt
// Q_DECLARE_TYPEINFO(Log4Qt::MainThreadAppender, Q_COMPLEX_TYPE); // Use default
#endif
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