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92c7695981
Most streams are backed by a memory buffer. Create common base classes for this functionality to avoid code duplication.
59 lines
1.4 KiB
C++
59 lines
1.4 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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#ifndef __RDR_RANDOMSTREAM_H__
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#define __RDR_RANDOMSTREAM_H__
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#include <stdio.h>
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#include <rdr/BufferedInStream.h>
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#ifdef WIN32
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#include <windows.h>
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#include <wincrypt.h>
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#ifdef WINCRYPT32API
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#define RFB_HAVE_WINCRYPT
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#endif
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#endif
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namespace rdr {
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class RandomStream : public BufferedInStream {
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public:
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RandomStream();
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virtual ~RandomStream();
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private:
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virtual bool fillBuffer(size_t maxSize, bool wait);
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private:
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static unsigned int seed;
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#ifdef RFB_HAVE_WINCRYPT
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HCRYPTPROV provider;
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#endif
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#ifndef WIN32
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FILE* fp;
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#endif
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};
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} // end of namespace rdr
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#endif
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