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sdrangel/sdrdaemon/channel/sdrdaemondataqueue.cpp

87 lines
2.7 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2018 Edouard Griffiths, F4EXB. //
// //
// SDRdaemon sink channel (Rx) data blocks queue //
// //
// SDRdaemon is a detached SDR front end that handles the interface with a //
// physical device and sends or receives the I/Q samples stream to or from a //
// SDRangel instance via UDP. It is controlled via a Web REST API. //
// //
// 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/>. //
///////////////////////////////////////////////////////////////////////////////////
#include <QDebug>
#include <QMutexLocker>
#include "channel/sdrdaemondataqueue.h"
#include "channel/sdrdaemondatablock.h"
SDRDaemonDataQueue::SDRDaemonDataQueue(QObject* parent) :
QObject(parent),
m_lock(QMutex::Recursive),
m_queue()
{
}
SDRDaemonDataQueue::~SDRDaemonDataQueue()
{
SDRDaemonDataBlock* data;
while ((data = pop()) != 0)
{
qDebug() << "SDRDaemonDataQueue::~SDRDaemonDataQueue: data block was still in queue";
delete data;
}
}
void SDRDaemonDataQueue::push(SDRDaemonDataBlock* data, bool emitSignal)
{
if (data)
{
m_lock.lock();
m_queue.append(data);
m_lock.unlock();
}
if (emitSignal)
{
emit dataBlockEnqueued();
}
}
SDRDaemonDataBlock* SDRDaemonDataQueue::pop()
{
QMutexLocker locker(&m_lock);
if (m_queue.isEmpty())
{
return 0;
}
else
{
return m_queue.takeFirst();
}
}
int SDRDaemonDataQueue::size()
{
QMutexLocker locker(&m_lock);
return m_queue.size();
}
void SDRDaemonDataQueue::clear()
{
QMutexLocker locker(&m_lock);
m_queue.clear();
}