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/*
//
// Copyright 1997-2009 Torsten Rohlfing
//
// Copyright 2004-2012 SRI International
//
// Copyright 2011 Greg Jefferis
//
// This file is part of the Computational Morphometry Toolkit.
//
// http://www.nitrc.org/projects/cmtk/
//
// The Computational Morphometry Toolkit 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 3 of
// the License, or (at your option) any later version.
//
// The Computational Morphometry Toolkit 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 the Computational Morphometry Toolkit. If not, see
// <http://www.gnu.org/licenses/>.
//
// $Revision: 5436 $
//
// $LastChangedDate: 2018-12-10 19:01:20 -0800 (Mon, 10 Dec 2018) $
//
// $LastChangedBy: torstenrohlfing $
//
*/
#include <System/cmtkCompressedStream.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
namespace
cmtk
{
/** \addtogroup System */
//@{
CompressedStream::File::File( const std::string& filename )
{
this->m_File = fopen( filename.c_str(), CMTK_FILE_MODE );
if ( !this->m_File )
{
throw 0;
}
}
CompressedStream::File::~File()
{
this->Close();
}
void
CompressedStream::File::Close()
{
if ( this->m_File )
{
fclose( this->m_File );
this->m_File = NULL;
}
}
void
CompressedStream::File::Rewind ()
{
rewind( this->m_File );
this->CompressedStream::ReaderBase::Rewind();
}
int
CompressedStream::File::Seek ( const long int offset, int whence )
{
return fseek( this->m_File, offset, whence );
}
size_t
CompressedStream::File::Read( void *data, size_t size, size_t count )
{
const size_t itemsRead = fread( data, size, count, this->m_File );
this->m_BytesRead += itemsRead * size;
return itemsRead;
}
bool
CompressedStream::File::Get ( char &c)
{
const int data = fgetc( this->m_File );
if ( data != EOF )
{
c=(char) data;
++this->m_BytesRead;
return true;
}
return false;
}
int
CompressedStream::File::Tell () const
{
return ftell( this->m_File );
}
bool
CompressedStream::File::Feof () const
{
return (feof( this->m_File ) != 0);
}
} // namespace cmtk
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