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sdrangel/sdrbase/util/syncmessenger.cpp

78 lines
2.5 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
// written by Christian Daniel //
// Copyright (C) 2014 John Greb <hexameron@spam.no> //
// Copyright (C) 2015, 2017-2020 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
// //
// 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 //
// (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 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/>. //
///////////////////////////////////////////////////////////////////////////////////
#include <QtGlobal>
#include "util/syncmessenger.h"
#include "util/message.h"
SyncMessenger::SyncMessenger() :
m_complete(0),
m_message(0),
m_result(0)
{
qRegisterMetaType<Message>("Message");
}
SyncMessenger::~SyncMessenger()
{}
int SyncMessenger::sendWait(Message& message, unsigned long msPollTime)
{
m_message = &message;
m_mutex.lock();
#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
m_complete.storeRelaxed(0);
#else
m_complete.store(0);
#endif
emit messageSent();
#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
while (!m_complete.loadRelaxed()) {
m_waitCondition.wait(&m_mutex, msPollTime);
}
#else
while (!m_complete.load()) {
m_waitCondition.wait(&m_mutex, msPollTime);
}
#endif
int result = m_result;
m_mutex.unlock();
return result;
}
void SyncMessenger::done(int result)
{
m_result = result;
#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
m_complete.storeRelaxed(1);
#else
m_complete.store(1);
#endif
m_waitCondition.wakeAll();
}