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sdrangel/sdrdaemon/channel/sdrdaemondatareadqueue.h

60 lines
3.0 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2018 Edouard Griffiths, F4EXB. //
// //
// SDRdaemon sink channel (Rx) data blocks to read 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/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef SDRDAEMON_CHANNEL_SDRDAEMONDATAREADQUEUE_H_
#define SDRDAEMON_CHANNEL_SDRDAEMONDATAREADQUEUE_H_
#include <QQueue>
class SDRDaemonDataBlock;
class Sample;
class SDRDaemonDataReadQueue
{
public:
SDRDaemonDataReadQueue();
~SDRDaemonDataReadQueue();
void push(SDRDaemonDataBlock* dataBlock); //!< push block on the queue
SDRDaemonDataBlock* pop(); //!< Pop block from the queue
void readSample(Sample& s); //!< Read sample from queue
uint32_t length() const { return m_dataReadQueue.size(); } //!< Returns queue length
uint32_t size() const { return m_maxSize; } //!< Returns queue size (max length)
void setSize(uint32_t size); //!< Sets the queue size (max length)
uint32_t readSampleCount() const { return m_sampleCount; } //!< Returns the absolute number of samples read
static const uint32_t MinimumMaxSize;
private:
QQueue<SDRDaemonDataBlock*> m_dataReadQueue;
SDRDaemonDataBlock *m_dataBlock;
uint32_t m_maxSize;
uint32_t m_blockIndex;
uint32_t m_sampleIndex;
uint32_t m_sampleCount; //!< use a counter capped below 2^31 as it is going to be converted to an int in the web interface
bool m_full; //!< full condition was hit
};
#endif /* SDRDAEMON_CHANNEL_SDRDAEMONDATAREADQUEUE_H_ */