samplesinkfifo.h

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// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
// written by Christian Daniel                                                   //
//                                                                               //
// 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 INCLUDE_SAMPLEFIFO_H
#define INCLUDE_SAMPLEFIFO_H

#include <QObject>
#include <QMutex>
#include <QTime>
#include "dsp/dsptypes.h"
#include "export.h"

class SDRBASE_API SampleSinkFifo : public QObject {
    Q_OBJECT

private:
    QMutex m_mutex;
    QTime m_msgRateTimer;
    int m_suppressed;

    SampleVector m_data;

    uint m_size;
    uint m_fill;
    uint m_head;
    uint m_tail;

    void create(uint s);

public:
    SampleSinkFifo(QObject* parent = nullptr);
    SampleSinkFifo(int size, QObject* parent = nullptr);
    SampleSinkFifo(const SampleSinkFifo& other);
    ~SampleSinkFifo();

    bool setSize(int size);
    inline uint size() const { return m_size; }
    inline uint fill() { QMutexLocker mutexLocker(&m_mutex); uint fill = m_fill; return fill; }

    uint write(const quint8* data, uint count);
    uint write(SampleVector::const_iterator begin, SampleVector::const_iterator end);

    uint read(SampleVector::iterator begin, SampleVector::iterator end);

    uint readBegin(uint count,
        SampleVector::iterator* part1Begin, SampleVector::iterator* part1End,
        SampleVector::iterator* part2Begin, SampleVector::iterator* part2End);
    uint readCommit(uint count);

signals:
    void dataReady();
};

#endif // INCLUDE_SAMPLEFIFO_H