Bzip2FileSet.h

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// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4; -*-
// vim: set shiftwidth=4 softtabstop=4 expandtab:
/*
 ********************************************************************
 ** NIDAS: NCAR In-situ Data Acquistion Software
 **
 ** 2009, Copyright University Corporation for Atmospheric Research
 **
 ** This program 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 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.
 **
 ** The LICENSE.txt file accompanying this software contains
 ** a copy of the GNU General Public License. If it is not found,
 ** write to the Free Software Foundation, Inc.,
 ** 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 **
 ********************************************************************
*/
/*
 ********************************************************************
    Copyright by the National Center for Atmospheric Research

    $LastChangedDate$

    $LastChangedRevision$

    $LastChangedBy$

    $HeadURL$
 ********************************************************************

*/

#include <nidas/Config.h>

#ifdef HAVE_BZLIB_H

#ifndef NIDAS_UTIL_FILESETBZIP2_H
#define NIDAS_UTIL_FILESETBZIP2_H

#define _FILE_OFFSET_BITS 64

#include "FileSet.h"

#include <bzlib.h>

namespace nidas { namespace util {

class Bzip2FileSet: public FileSet {
public:

    Bzip2FileSet();

    Bzip2FileSet(const Bzip2FileSet& x);

    Bzip2FileSet& operator=(const Bzip2FileSet& x);

    Bzip2FileSet* clone() const;

    ~Bzip2FileSet();

    void closeFile() throw(IOException);

    void openFileForWriting(const std::string& filename) throw(IOException);

    void openNextFile() throw(IOException);


    size_t read(void* buf, size_t count) throw(IOException);

    size_t write(const void* buf, size_t count) throw(IOException);

    size_t write(const struct iovec* iov, int iovcnt) throw(IOException);

private:

    FILE* _fp;

    BZFILE* _bzfp;

    int _blockSize100k;

    int _small;

    bool _openedForWriting;

};

}}  // namespace nidas namespace util

#endif
#endif