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sdrangel/sdrbase/util/syncmessenger.h
2016-03-08 04:54:12 +01:00

58 lines
2.2 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2015 F4EXB //
// written by Edouard Griffiths //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation as version 3 of the License, or //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef INCLUDE_UTIL_SYNCMESSENGER_H_
#define INCLUDE_UTIL_SYNCMESSENGER_H_
#include <QObject>
#include <QWaitCondition>
#include <QMutex>
#include <QAtomicInt>
#include "util/export.h"
class Message;
/**
* This class is responsible of managing the synchronous processing of a message across threads
*/
class SDRANGEL_API SyncMessenger : public QObject {
Q_OBJECT
public:
SyncMessenger();
~SyncMessenger();
int sendWait(Message& message, unsigned long msPollTime = 100); //!< Send message and waits for its process completion
Message* getMessage() const { return m_message; }
void storeMessage(Message& message) { m_message = &message; }
void done(int result = 0); //!< Processing of the message is complete
signals:
void messageSent();
protected:
QWaitCondition m_waitCondition;
QMutex m_mutex;
QAtomicInt m_complete;
Message *m_message;
int m_result;
};
#endif /* INCLUDE_UTIL_SYNCMESSENGER_H_ */