[pclasses-cvs] pclasses2/include/pclasses/IO ZLibIOFilter.h,NONE,1.1

[Christian P. <cp...@us...>]

Update of /cvsroot/pclasses/pclasses2/include/pclasses/IO
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv11889/include/pclasses/IO

Added Files:
	ZLibIOFilter.h 
Log Message:
Added ZLibIOFilter as promised to Stephan ;-)


--- NEW FILE: ZLibIOFilter.h ---
/***************************************************************************
 *   Copyright (C) 2004 by Christian Prochnow                              *
 *   cp...@se...                                                   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU Library General Public License as       *
 *   published by the Free Software Foundation; either version 2 of the    *
 *   License, or (at your option) any later version.                       *
 *                                                                         *
 *   This program 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 Library General Public     *
 *   License along with this program; if not, write to the                 *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#ifndef P_IO_ZLibIOFilter_h
#define P_IO_ZLibIOFilter_h

#include <pclasses/IO/IOFilter.h>
#include <pclasses/IO/ZLib.h>

namespace P {

namespace IO {

//! ZLib I/O Filter
/*!
	ZLib stream based I/O Filter. This is not a gzip filter!
*/
class ZLibIOFilter: public IOFilter {
	public:
		ZLibIOFilter();
		~ZLibIOFilter();

		IOFilter* create();

		void sync(bool close);

		bool isSeekable();

		size_t read(char* buffer, size_t count) throw(IOError);

		size_t write(const char* buffer, size_t count) 
			throw(IO::IOError);

		size_t peek(char* buffer, size_t count) throw(IOError);

		offset_t seek(offset_t offset, IO::IODevice::SeekMode mode) throw(IOError);

		offset_t size() const throw(IOError);

	private:
		void flushAvailBytes();

		ZLibOutputStream* _strmOut;
		ZLibInputStream*  _strmIn;
};


} // !namespace IO

} // !namespace P

#endif