KasmVNC/common/rdr/ZlibInStream.h
2021-03-29 10:49:25 +03:00

58 lines
1.4 KiB
C++

/* 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.
*/
//
// ZlibInStream streams from a compressed data stream ("underlying"),
// decompressing with zlib on the fly.
//
#ifndef __RDR_ZLIBINSTREAM_H__
#define __RDR_ZLIBINSTREAM_H__
#include <rdr/BufferedInStream.h>
struct z_stream_s;
namespace rdr {
class ZlibInStream : public BufferedInStream {
public:
ZlibInStream();
virtual ~ZlibInStream();
void setUnderlying(InStream* is, size_t bytesIn);
void flushUnderlying();
void reset();
private:
void init();
void deinit();
virtual bool fillBuffer(size_t maxSize, bool wait);
private:
InStream* underlying;
z_stream_s* zs;
size_t bytesIn;
};
} // end of namespace rdr
#endif