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search/ixe/io/MappedGzFile.h

/*
**      IXE
**      io/MappedGzFile.h
** ----------------------------------------------------------------------
**      Copyright (c) 2004  Giuseppe Attardi (attardi@di.unipi.it).
** ----------------------------------------------------------------------
**
**  This file is part of IXE.
**
**  IXE is free software; you can redistribute it and/or modify it
**  under the terms of the GNU General Public License, version 3,
**  as published by the Free Software Foundation.
**
**  IXE 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 program.  If not, see <http://www.gnu.org/licenses/>.
**  ----------------------------------------------------------------------
*/

#ifndef IXE_MappedGzFile_H
#define IXE_MappedGzFile_H

// library
#include "io/mappedFile.h"
#include "include/error.h"

namespace IXE {

namespace io {

class ZlibError : public RuntimeError {
public:
  ZlibError(std::string const& msg) : RuntimeError(msg) {}
};

class MappedGzFileView : public MappedFileView
{
public:
  MappedGzFileView(FileHandle* fh, off64_t offset, Size len);

  Size                  inflate(byte* dest, Size len);
};

class MappedGzFile : public mappedFile
{
public:
  MappedGzFile() : usize(0), contents(0) { }

  MappedGzFile(char const* filename, Size size, byte* dest = 0);

  bool                  open(char const* filename, Size size, byte* dest = 0);

  ~MappedGzFile() { delete[] contents; }

  const_iterator        begin() const { return (const_iterator)contents; }
  const_iterator        end() const { return begin() + usize; }
  const_reverse_iterator rbegin() const { return const_reverse_iterator(end()); }
  const_reverse_iterator rend() const   { return const_reverse_iterator(begin()); }

  size_type             size() const { return usize; }

private:
  size_type             usize;
  char*                 contents;
};

} // namespace io
} // namespace IXE


#endif // IXE_MappedGzFile_H

 

Copyright © 2005-2011 G. Attardi. Generated on 4 Mar 2011 by doxygen 1.6.1.