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/*
* Copyright (C) 2007-2011 Xagasoft, All rights reserved.
*
* This file is part of the libbu++ library and is released under the
* terms of the license contained in the file LICENSE.
*/
#ifndef BU_CONDUIT_H
#define BU_CONDUIT_H
#include "bu/stream.h"
#include "bu/string.h"
#include "bu/queuebuf.h"
#include "bu/itomutex.h"
#include "bu/itocondition.h"
namespace Bu
{
/**
* Simple inter-thread communication stream. This acts like a pair of
* pipes for stream communication between any two things, but without the
* use of pipes, making this a bad choice for IPC.
*/
class Conduit : public Stream
{
public:
Conduit( int iBlockSize=256 );
virtual ~Conduit();
virtual void close();
virtual Bu::size read( void *pBuf, Bu::size nBytes );
virtual Bu::size peek( void *pBuf, Bu::size nBytes );
virtual Bu::size peek( void *pBuf, Bu::size nBytes, Bu::size nSkip );
virtual Bu::size write( const void *pBuf, Bu::size nBytes );
virtual Bu::size tell();
virtual void seek( Bu::size offset );
virtual void setPos( Bu::size pos );
virtual void setPosEnd( Bu::size pos );
virtual bool isEos();
virtual bool isOpen();
virtual void flush();
virtual bool canRead();
virtual bool canWrite();
virtual bool isReadable();
virtual bool isWritable();
virtual bool isSeekable();
virtual bool isBlocking();
virtual void setBlocking( bool bBlocking=true );
virtual void setSize( Bu::size iSize );
virtual size getSize() const;
virtual size getBlockSize() const;
virtual Bu::String getLocation() const;
private:
QueueBuf qb;
mutable ItoMutex im;
ItoCondition cBlock;
bool bBlocking;
bool bOpen;
};
}
#endif
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