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sdrangel/plugins/samplesink/remoteoutput/remoteoutputfifo.h
2020-11-14 22:08:06 +01:00

56 lines
2.2 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2019 Edouard Griffiths, F4EXB //
// //
// 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/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef REMOTESINK_REMOTEOUTPUTFIFO_H_
#define REMOTESINK_REMOTEOUTPUTFIFO_H_
#include <vector>
#include <QObject>
#include <QMutex>
#include "channel/remotedatablock.h"
class RemoteOutputFifo : public QObject {
Q_OBJECT
public:
RemoteOutputFifo(QObject *parent = nullptr);
RemoteOutputFifo(unsigned int size, QObject *parent = nullptr);
~RemoteOutputFifo();
void resize(unsigned int size);
void reset();
RemoteDataBlock *getDataBlock();
unsigned int readDataBlock(RemoteDataBlock **dataBlock);
unsigned int getRemainder();
signals:
void dataBlockServed();
private:
std::vector<RemoteDataBlock> m_data;
int m_size;
int m_readHead; //!< index of last data block processed
int m_servedHead; //!< index of last data block served
int m_writeHead; //!< index of next data block to serve
QMutex m_mutex;
unsigned int calculateRemainder();
};
#endif // REMOTESINK_REMOTEOUTPUTFIFO_H_