blob: 24e336eba6a4bc9bfc2d3c75a89ba935dba2cee4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
/*
* Copyright (c) International Business Machines Corp., 2002
* This code contributed by Mike Mason <mmlnx@us.ibm.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 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.
*/
#define __USE_GNU 1 /* required for IPC_INFO define */
#include <sys/ipc.h>
#include <sys/sem.h>
#include "pmapi.h"
#include "sem_limits.h"
int
refresh_sem_limits(sem_limits_t *sem_limits)
{
static int started;
static struct seminfo seminfo;
static union semun arg;
if (!started) {
started = 1;
memset(sem_limits, 0, sizeof(sem_limits_t));
arg.array = (unsigned short *) &seminfo;
}
if (semctl(0, 0, IPC_INFO, arg) < 0) {
return -oserror();
}
sem_limits->semmap = seminfo.semmap;
sem_limits->semmni = seminfo.semmni;
sem_limits->semmns = seminfo.semmns;
sem_limits->semmnu = seminfo.semmnu;
sem_limits->semmsl = seminfo.semmsl;
sem_limits->semopm = seminfo.semopm;
sem_limits->semume = seminfo.semume;
sem_limits->semusz = seminfo.semusz;
sem_limits->semvmx = seminfo.semvmx;
sem_limits->semaem = seminfo.semaem;
return 0;
}
|
