7d16436c5c
[INTERPRETER] * BUG: Eof() now correctly works on file bigger than 4GB opened in direct mode.
118 lines
2.3 KiB
C
118 lines
2.3 KiB
C
/***************************************************************************
|
|
|
|
gbx_stream_process.c
|
|
|
|
(c) 2000-2017 Benoît Minisini <g4mba5@gmail.com>
|
|
|
|
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, 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., 51 Franklin Street, Fifth Floor, Boston,
|
|
MA 02110-1301, USA.
|
|
|
|
***************************************************************************/
|
|
|
|
#define __STREAM_IMPL_C
|
|
|
|
#include "gb_common.h"
|
|
#include "gb_error.h"
|
|
#include "gbx_value.h"
|
|
#include "gb_limit.h"
|
|
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <sys/mman.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
#include <errno.h>
|
|
|
|
#include "gbx_c_process.h"
|
|
|
|
#include "gbx_stream.h"
|
|
|
|
|
|
#define FDR ((CPROCESS *)stream->process.process)->out
|
|
#define FDW ((CPROCESS *)stream->process.process)->in
|
|
|
|
|
|
static int stream_open(STREAM *stream, const char *path, int mode, CPROCESS *process)
|
|
{
|
|
stream->process.process = process;
|
|
STREAM_blocking(stream, FALSE);
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
static int stream_close(STREAM *stream)
|
|
{
|
|
if (FDW >= 0)
|
|
{
|
|
if (close(FDW) < 0)
|
|
return TRUE;
|
|
|
|
FDW = -1;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
static int stream_read(STREAM *stream, char *buffer, int len)
|
|
{
|
|
return read(FDR, buffer, len);
|
|
}
|
|
|
|
static int stream_write(STREAM *stream, char *buffer, int len)
|
|
{
|
|
return write(FDW, buffer, len);
|
|
}
|
|
|
|
|
|
static int stream_seek(STREAM *stream, int64_t pos, int whence)
|
|
{
|
|
if (FDR < 0)
|
|
return TRUE;
|
|
|
|
return (lseek(FDR, pos, whence) < 0);
|
|
}
|
|
|
|
|
|
static int stream_tell(STREAM *stream, int64_t *pos)
|
|
{
|
|
if (FDR < 0)
|
|
return TRUE;
|
|
|
|
*pos = lseek(FDR, 0, SEEK_CUR);
|
|
return (*pos < 0);
|
|
}
|
|
|
|
|
|
static int stream_flush(STREAM *stream)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
#define stream_eof NULL
|
|
|
|
|
|
#define stream_lof NULL
|
|
|
|
|
|
static int stream_handle(STREAM *stream)
|
|
{
|
|
return FDR;
|
|
}
|
|
|
|
|
|
DECLARE_STREAM(STREAM_process);
|
|
|