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Diffstat (limited to 'rdr/RandomStream.h')
-rw-r--r-- | rdr/RandomStream.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/rdr/RandomStream.h b/rdr/RandomStream.h new file mode 100644 index 00000000..c4aaaa6a --- /dev/null +++ b/rdr/RandomStream.h @@ -0,0 +1,63 @@ +/* Copyright (C) 2002-2003 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. + */ + +#ifndef __RDR_RANDOMSTREAM_H__ +#define __RDR_RANDOMSTREAM_H__ + +#include <stdio.h> +#include <rdr/InStream.h> + +#ifdef WIN32 +#ifndef _WIN32_WINNT +#define _WIN32_WINNT 0x0400 +#endif +#define WIN32_LEAN_AND_MEAN +#include <windows.h> +#include <wincrypt.h> +#endif + +namespace rdr { + + class RandomStream : public InStream { + + public: + + RandomStream(); + virtual ~RandomStream(); + + int pos(); + + protected: + int overrun(int itemSize, int nItems, bool wait); + + private: + U8* start; + int offset; + + static unsigned int seed; +#ifdef WIN32 + HCRYPTPROV provider; +#else + FILE* fp; +#endif + + }; + +} // end of namespace rdr + +#endif |