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C++

/**
******************************************************************************
*
* @file uavobjecthelper.h
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2012.
* @addtogroup [Group]
* @{
* @addtogroup UAVObjectHelper
* @{
* @brief [Brief]
*****************************************************************************/
/*
* 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; either version 3 of the License, or
* (at your option) any later version.
*
* 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
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef UAVOBJECTHELPER_H
#define UAVOBJECTHELPER_H
#include <QObject>
#include <QEventLoop>
#include <QMutex>
#include <QMutexLocker>
#include "uavobjectutil_global.h"
#include "uavobject.h"
class UAVOBJECTUTIL_EXPORT AbstractUAVObjectHelper : public QObject {
Q_OBJECT
public:
explicit AbstractUAVObjectHelper(QObject *parent = 0);
virtual ~AbstractUAVObjectHelper();
enum Result { SUCCESS, FAIL, TIMEOUT };
// default timeout = 3 x 250ms + 50ms safety margin = 800ms
// where 3 is the number of UAVTalk retries and 250ms is the UAVTalk timeout
Result doObjectAndWait(UAVObject *object, int timeout = 800);
protected:
virtual void doObjectAndWaitImpl() = 0;
UAVObject *m_object;
private slots:
void transactionCompleted(UAVObject *object, bool success);
private:
QMutex m_mutex;
QEventLoop m_eventLoop;
bool m_transactionResult;
bool m_transactionCompleted;
};
class UAVOBJECTUTIL_EXPORT UAVObjectUpdaterHelper : public AbstractUAVObjectHelper {
Q_OBJECT
public:
explicit UAVObjectUpdaterHelper(QObject *parent = 0);
virtual ~UAVObjectUpdaterHelper();
protected:
virtual void doObjectAndWaitImpl();
};
class UAVOBJECTUTIL_EXPORT UAVObjectRequestHelper : public AbstractUAVObjectHelper {
Q_OBJECT
public:
explicit UAVObjectRequestHelper(QObject *parent = 0);
virtual ~UAVObjectRequestHelper();
protected:
virtual void doObjectAndWaitImpl();
};
#endif // UAVOBJECTHELPER_H