beetle-pce-fast-libretro/mednafen/FileStream.cpp
2015-07-25 03:51:17 +02:00

102 lines
2.0 KiB
C++

// TODO/WIP
/* Mednafen - Multi-system Emulator
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <sys/stat.h>
#include "mednafen.h"
#include "Stream.h"
#include "FileStream.h"
#include <stdarg.h>
#include <string.h>
#ifdef _WIN32
#include <io.h>
#else
#include <unistd.h>
#endif
#define fseeko fseek
#define ftello ftell
FileStream::FileStream(const char *path, const int mode): OpenedMode(mode)
{
fp = fopen(path, (mode == FileStream::MODE_WRITE) ? "wb" : "rb");
}
FileStream::~FileStream()
{
}
uint64 FileStream::attributes(void)
{
uint64 ret = ATTRIBUTE_SEEKABLE;
switch(OpenedMode)
{
case FileStream::MODE_READ:
ret |= ATTRIBUTE_READABLE;
break;
case FileStream::MODE_WRITE_SAFE:
case FileStream::MODE_WRITE:
ret |= ATTRIBUTE_WRITEABLE;
break;
}
return ret;
}
uint64 FileStream::read(void *data, uint64 count, bool error_on_eos)
{
return fread(data, 1, count, fp);
}
void FileStream::write(const void *data, uint64 count)
{
fwrite(data, 1, count, fp);
}
void FileStream::seek(int64 offset, int whence)
{
fseeko(fp, offset, whence);
}
int64 FileStream::tell(void)
{
return ftello(fp);
}
int64 FileStream::size(void)
{
struct stat buf;
fstat(fileno(fp), &buf);
return(buf.st_size);
}
void FileStream::close(void)
{
if(!fp)
return;
FILE *tmp = fp;
fp = NULL;
fclose(tmp);
}