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//
// Copyright (C) 2002 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 FdInStream : public InStream {
public:
FdInStream(int fd, int timeout=0, int bufSize=0);
FdInStream(int fd, void (*blockCallback)(void*), void* blockCallbackArg=0,
int bufSize=0);
virtual ~FdInStream();
int getFd() { return fd; }
int pos();
void readBytes(void* data, int length);
int bytesInBuf() { return end - ptr; }
void startTiming();
void stopTiming();
unsigned int kbitsPerSecond();
unsigned int timeWaited() { return timeWaitedIn100us; }
protected:
int overrun(int itemSize, int nItems);
private:
int checkReadable(int fd, int timeout);
int readWithTimeoutOrCallback(void* buf, int len);
int fd;
int timeout;
void (*blockCallback)(void*);
void* blockCallbackArg;
bool timing;
unsigned int timeWaitedIn100us;
unsigned int timedKbits;
int bufSize;
int offset;
U8* start;
};
} // end of namespace rdr
#endif
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