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/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
*
* This 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; either version 2 of the License, or
* (at your option) any later version.
*
* This software 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
//
// FdInStream streams from a file descriptor.
//
#ifndef __RDR_FDINSTREAM_H__
#define __RDR_FDINSTREAM_H__
#include <rdr/InStream.h>
namespace rdr {
class FdInStreamBlockCallback {
public:
virtual void blockCallback() = 0;
virtual ~FdInStreamBlockCallback() {}
};
class FdInStream : public InStream {
public:
FdInStream(int fd, int timeoutms=-1, int bufSize=0,
bool closeWhenDone_=false);
FdInStream(int fd, FdInStreamBlockCallback* blockCallback, int bufSize=0);
virtual ~FdInStream();
void setTimeout(int timeoutms);
void setBlockCallback(FdInStreamBlockCallback* blockCallback);
int getFd() { return fd; }
int pos();
void readBytes(void* data, int length);
void startTiming();
void stopTiming();
unsigned int kbitsPerSecond();
unsigned int timeWaited() { return timeWaitedIn100us; }
protected:
int overrun(int itemSize, int nItems, bool wait);
private:
int readWithTimeoutOrCallback(void* buf, int len, bool wait=true);
int fd;
bool closeWhenDone;
int timeoutms;
FdInStreamBlockCallback* blockCallback;
bool timing;
unsigned int timeWaitedIn100us;
unsigned int timedKbits;
int bufSize;
int offset;
U8* start;
};
} // end of namespace rdr
#endif
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