NullIO.h

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//
//  PAIO.h -- DAC IO using PortAudio
//  See the copyright notice and acknowledgment of authors in the file COPYRIGHT
//


#ifndef CSL_NULLIO_H
#define CSL_NULLIO_H

#include "CSL_Core.h"

#include "ThreadUtilities.h"    // Thread util classes (used only by NullIO)
#include "ThreadedFrameStream.h"

namespace csl {

class NullIO : public IO, public ThreadPthread {
public:             
    NullIO();                       
    virtual ~NullIO();
    
    void start() throw(CException);         
    void stop() throw(CException);          
    Buffer & getInput() throw(CException) { return mEmptyBuffer; };
    Buffer & getInput(unsigned numFrames, unsigned numChannels) throw(CException) { return mEmptyBuffer; };

protected:
    bool mRunning;                      
    Thread * mThread;                   
    Synch * mSynch;
    static void * FeederFunction(void * arg);       
    Buffer mEmptyBuffer;
};

}   // end of namespace

#endif CSL_NULLIO_H

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