mirror of
https://frontier.innolan.net/github/amiga-ixemul.git
synced 2026-09-12 09:42:45 +00:00
51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
/*
|
|
* This file is part of ixemul.library for the Amiga.
|
|
* Copyright (C) 1996 Hans Verkuil
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the Free
|
|
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
*/
|
|
|
|
#define _KERNEL
|
|
#include "ixemul.h"
|
|
#include "kprintf.h"
|
|
|
|
#include "select.h"
|
|
|
|
/*
|
|
* select operation on a "memory" filehandle.
|
|
*/
|
|
|
|
int
|
|
__mselect (struct file *f, int select_cmd, int io_mode,
|
|
fd_set *ignored, u_long *also_ignored)
|
|
{
|
|
int result;
|
|
|
|
if (select_cmd == SELCMD_PREPARE)
|
|
return 0;
|
|
if (select_cmd == SELCMD_CHECK || select_cmd == SELCMD_POLL)
|
|
{
|
|
/* only read is supported, other modes default to `ok' */
|
|
if (io_mode != SELMODE_IN) return 1;
|
|
|
|
__get_file (f);
|
|
result = f->f_stb.st_size - f->f_mf.mf_offset;
|
|
__release_file (f);
|
|
return result;
|
|
}
|
|
return 0;
|
|
}
|