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/*
* rtstreams.stdlib.cpp
*
* Copyright (c) 2000-2004 by Florian Fischer (florianfischer@gmx.de)
* and Martin Trautmann (martintrautmann@gmx.de)
*
* This file may be distributed and/or modified under the terms of the
* GNU General Public License version 2 as published by the Free Software
* Foundation.
*
* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
* WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
*/
////////////// File Streams using the STL ////////////////////
#ifndef __LRT_STREAMS_STDLIB__
#define __LRT_STREAMS_STDLIB__
#include "rtstreams.h"
#include "rtstring.h"
#include "rtfile.h"
#include <stdio.h>
namespace lrt {
FileInputStream::FileInputStream(const String &filename, bool textMode) :
open(false), markPos(0)
{
String fname = File(filename).getName();
handle = ::fopen(fname.cStr(), (textMode ? "rt" : "rb"));
if(handle) open = true;
else _fail = true;
}
FileInputStream::FileInputStream(const File &file, bool textMode) :
open(false), markPos(0)
{
String fname = file.getName();
handle = ::fopen(fname.cStr(), (textMode ? "rt" : "rb"));
if(handle) open = true;
else _fail = true;
}
bool FileInputStream::markSupported()
{
return true;
}
void FileInputStream::mark()
{
if(!open) return;
markPos = ::ftell((FILE*) handle);
}
void FileInputStream::reset()
{
if(!open) return;
::fseek((FILE*) handle, markPos, SEEK_SET);
}
int FileInputStream::read()
{
if(!open) return -1;
unsigned char ret;
int rval = ::fread(&ret, 1, 1, (FILE*) handle);
if(rval == 0)
{
if(ferror((FILE*) handle)) _fail = true;
return -1;
}
return ret;
}
bool FileInputStream::eos()
{
if(!open) return true;
return (feof((FILE*) handle) != 0);
}
void FileInputStream::close()
{
if(open) {
::fclose((FILE*) handle);
open = false;
}
}
FileInputStream::~FileInputStream()
{
close();
// delete handle; // must not be deleted!
}
FileOutputStream::FileOutputStream(const String &fileName, bool append)
: open(false), handle(0)
{
String fname = File(fileName).getName();
handle = ::fopen(fname.cStr(), (append ? "ab" : "wb"));
if(handle) open = true;
else _fail = true;
}
FileOutputStream::FileOutputStream(const File &file, bool append)
: open(false), handle(0)
{
String fname = file.getName();
handle = ::fopen(fname.cStr(), (append ? "ab" : "wb"));
if(handle) open = true;
else _fail = true;
}
bool FileOutputStream::write(int b)
{
if(!open) return false;
char temp = (char)b;
int rval = ::fwrite(&temp, 1, 1, (FILE*) handle);
if(rval == 0)
{
_fail = true;
return false;
}
else return true;
}
bool FileOutputStream::write(const Array<char> &b, int off, int len)
{
if(!open) return false;
const char *ptr = b.getData();
int rval = ::fwrite(ptr + off, 1, len, (FILE*) handle);
if(rval < len)
{
_fail = true;
return false;
}
else return true;
}
void FileOutputStream::flush()
{
if(!open) return;
::fflush((FILE*) handle);
}
void FileOutputStream::close()
{
if(open && handle) {
::fclose((FILE*) handle);
open = false;
}
}
FileOutputStream::~FileOutputStream()
{
close();
// delete handle; // must not be deleted!
}
} // namespace
#endif
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