mirror of
https://github.com/f4exb/sdrangel.git
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111 lines
3.4 KiB
C++
111 lines
3.4 KiB
C++
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///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2019 Edouard Griffiths, F4EXB. //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include "dsp/samplesourcefifo.h"
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#include "localsourcethread.h"
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MESSAGE_CLASS_DEFINITION(LocalSourceThread::MsgStartStop, Message)
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LocalSourceThread::LocalSourceThread(QObject* parent) :
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QThread(parent),
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m_running(false),
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m_sampleFifo(0)
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{
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connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()), Qt::QueuedConnection);
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}
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LocalSourceThread::~LocalSourceThread()
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{
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qDebug("LocalSourceThread::~LocalSourceThread");
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}
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void LocalSourceThread::startStop(bool start)
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{
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MsgStartStop *msg = MsgStartStop::create(start);
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m_inputMessageQueue.push(msg);
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}
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void LocalSourceThread::setSampleFifo(SampleSourceFifo *sampleFifo)
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{
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m_sampleFifo = sampleFifo;
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}
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void LocalSourceThread::pullSamples(unsigned int count)
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{
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SampleVector::iterator beginRead;
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m_sampleFifo->readAdvance(beginRead, count);
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emit samplesAvailable(m_sampleFifo->getIteratorOffset(beginRead));
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}
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void LocalSourceThread::startWork()
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{
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qDebug("LocalSourceThread::startWork");
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m_startWaitMutex.lock();
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start();
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while(!m_running) {
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m_startWaiter.wait(&m_startWaitMutex, 100);
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}
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m_startWaitMutex.unlock();
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}
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void LocalSourceThread::stopWork()
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{
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qDebug("LocalSourceThread::stopWork");
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m_running = false;
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wait();
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}
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void LocalSourceThread::run()
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{
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qDebug("LocalSinkThread::run: begin");
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m_running = true;
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m_startWaiter.wakeAll();
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while (m_running)
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{
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sleep(1); // Do nothing as everything is in the data handler (dequeuer)
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}
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m_running = false;
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qDebug("LocalSinkThread::run: end");
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}
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void LocalSourceThread::handleInputMessages()
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{
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Message* message;
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while ((message = m_inputMessageQueue.pop()) != 0)
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{
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if (MsgStartStop::match(*message))
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{
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MsgStartStop* notif = (MsgStartStop*) message;
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qDebug("LocalSourceThread::handleInputMessages: MsgStartStop: %s", notif->getStartStop() ? "start" : "stop");
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if (notif->getStartStop()) {
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startWork();
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} else {
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stopWork();
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}
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delete message;
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}
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}
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}
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