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libtdevnc/rdr/FixedMemOutStream.h

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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.
//
// A FixedMemOutStream writes to a buffer of a fixed length.
//
#ifndef __RDR_FIXEDMEMOUTSTREAM_H__
#define __RDR_FIXEDMEMOUTSTREAM_H__
#include <rdr/OutStream.h>
#include <rdr/Exception.h>
namespace rdr {
class FixedMemOutStream : public OutStream {
public:
FixedMemOutStream(void* buf, int len) {
ptr = start = (U8*)buf;
end = start + len;
}
int length() { return ptr - start; }
void reposition(int pos) { ptr = start + pos; }
const void* data() { return (const void*)start; }
private:
int overrun(int itemSize, int nItems) { throw EndOfStream(); }
U8* start;
};
}
#endif