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64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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//
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// rdr::MemInStream is an InStream which streams from a given memory buffer.
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// If the deleteWhenDone parameter is true then the buffer will be delete[]d in
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// the destructor. Note that it is delete[]d as a U8* - strictly speaking this
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// means it ought to be new[]ed as a U8* as well, but on most platforms this
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// doesn't matter.
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//
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#ifndef __RDR_MEMINSTREAM_H__
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#define __RDR_MEMINSTREAM_H__
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#include <rdr/InStream.h>
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#include <rdr/Exception.h>
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namespace rdr {
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class MemInStream : public InStream {
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public:
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MemInStream(const void* data, size_t len, bool deleteWhenDone_=false)
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: start((const U8*)data), deleteWhenDone(deleteWhenDone_)
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{
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ptr = start;
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end = start + len;
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}
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virtual ~MemInStream() {
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if (deleteWhenDone)
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delete [] start;
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}
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size_t pos() { return ptr - start; }
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void reposition(size_t pos) { ptr = start + pos; }
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private:
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bool overrun(size_t needed, bool wait) { throw EndOfStream(); }
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const U8* start;
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bool deleteWhenDone;
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};
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}
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#endif
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