Update of /cvsroot/pclasses/pclasses2/include/pclasses/IO
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv6341/include/pclasses/IO
Added Files:
BZip2.h
Log Message:
Added bzip2 support.
--- NEW FILE: BZip2.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_BZip2_h
#define P_IO_BZip2_h
#include <pclasses/Exception.h>
#include <pclasses/IntTypes.h>
#include <string>
namespace P {
namespace IO {
//! BZip2 error
class BZip2Error: public RuntimeError {
public:
BZip2Error(int err, const char* what, const SourceInfo& si);
~BZip2Error();
int errorNo() const throw();
std::string msg() const throw();
private:
int _err;
};
//! Bzip2 stream base
class BZip2Stream {
public:
BZip2Stream(size_t bufferSize);
virtual ~BZip2Stream();
//! Number of bytes available to consume
size_t bytesAvail() const throw();
//! Returns a pointer to the produced data
const char* buffer() const throw();
//! Dequeue produced data
size_t dequeue(size_t count) throw(BZip2Error);
//! Put data into producer buffer
void put(const char* buffer, size_t count) throw(BZip2Error);
protected:
void* _strm;
char* _buffer;
size_t _bufferSize;
};
//! BZip2 output (deflate) stream
class BZip2OutputStream: public BZip2Stream {
public:
BZip2OutputStream(int level = 6, size_t bufferSize = 1024) throw(BZip2Error);
~BZip2OutputStream() throw();
//! Compress buffer into output buffer
/*!
Returns the number of bytes actually deflated.
*/
size_t compress(const char* buffer, size_t count) throw(BZip2Error);
void sync() throw(BZip2Error);
//! Finish compression and reset state
bool finish() throw(BZip2Error);
//! Reset stream
void reset() throw(BZip2Error);
};
//! BZip2 input (inflate) stream
class BZip2InputStream: public BZip2Stream {
public:
BZip2InputStream(size_t bufferSize = 1024) throw(BZip2Error);
~BZip2InputStream() throw();
//! Decompress buffer into output buffer
/*!
Returns the number of bytes actually inflated, which may be NULL
when <count> is NULL or the end of the stream has been reached.
*/
size_t decompress(const char* buffer, size_t count) throw(BZip2Error);
bool eof() const throw();
//! Reset stream
void reset() throw(BZip2Error);
private:
bool _eof;
};
} // !namespace IO
} // !namespace P
#endif
|
