Bzip2Ifstream.h

Go to the documentation of this file.

// --------------------------------------------------------------------------
//                   OpenMS -- Open-Source Mass Spectrometry
// --------------------------------------------------------------------------
// Copyright The OpenMS Team -- Eberhard Karls University Tuebingen,
// ETH Zurich, and Freie Universitaet Berlin 2002-2020.
//
// This software is released under a three-clause BSD license:
//  * Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
//  * Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
//  * Neither the name of any author or any participating institution
//    may be used to endorse or promote products derived from this software
//    without specific prior written permission.
// For a full list of authors, refer to the file AUTHORS.
// --------------------------------------------------------------------------
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL ANY OF THE AUTHORS OR THE CONTRIBUTING
// INSTITUTIONS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// --------------------------------------------------------------------------
// $Maintainer: Timo Sachsenberg $
// $Authors: David Wojnar $
// --------------------------------------------------------------------------
 
#pragma once
 
#include <OpenMS/config.h>
#include <bzlib.h>
#include <istream>
 
namespace OpenMS
{
  class OPENMS_DLLAPI Bzip2Ifstream
  {
public:
    Bzip2Ifstream();
    explicit Bzip2Ifstream(const char * filename);
    virtual ~Bzip2Ifstream();
 
    size_t read(char * s, size_t n);
 
    bool streamEnd() const;
 
    bool isOpen() const;
 
    void open(const char * filename);
 
    void close();
 
protected:
    FILE * file_;
    BZFILE * bzip2file_;
    size_t     n_buffer_;
    int     bzerror_;
    bool stream_at_end_;
 
    //not implemented
    Bzip2Ifstream(const Bzip2Ifstream & bzip2);
    Bzip2Ifstream & operator=(const Bzip2Ifstream & bzip2);
  };
 
  //return bzip2file???!!!!????
  inline bool Bzip2Ifstream::isOpen() const
  {
    return file_ != nullptr;
  }
 
  inline bool Bzip2Ifstream::streamEnd() const
  {
    return stream_at_end_;
  }
 
} //namespace OpenMS