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diff --git a/ext/Log4Qt/src/mainthreadappender.h b/ext/Log4Qt/src/mainthreadappender.h
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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.
+ * &nbsp;
+ * \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