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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, size_t bufSize=0,
- bool closeWhenDone_=false);
- FdInStream(int fd, FdInStreamBlockCallback* blockCallback,
- size_t bufSize=0);
- virtual ~FdInStream();
-
- void setTimeout(int timeoutms);
- void setBlockCallback(FdInStreamBlockCallback* blockCallback);
- int getFd() { return fd; }
- size_t pos();
- void readBytes(void* data, size_t length);
-
- void startTiming();
- void stopTiming();
- unsigned int kbitsPerSecond();
- unsigned int timeWaited() { return timeWaitedIn100us; }
-
- protected:
- size_t overrun(size_t itemSize, size_t nItems, bool wait);
-
- private:
- size_t readWithTimeoutOrCallback(void* buf, size_t len, bool wait=true);
-
- int fd;
- bool closeWhenDone;
- int timeoutms;
- FdInStreamBlockCallback* blockCallback;
-
- bool timing;
- unsigned int timeWaitedIn100us;
- unsigned int timedKbits;
-
- size_t bufSize;
- size_t offset;
- U8* start;
- };
-
- } // end of namespace rdr
-
- #endif
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