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/*
* 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/shm.h>
#include "pmapi.h"
#include "shm_limits.h"
int
refresh_shm_limits(shm_limits_t *shm_limits)
{
static int started;
static struct shminfo shminfo;
if (!started) {
started = 1;
memset(shm_limits, 0, sizeof(shm_limits_t));
}
if (shmctl(0, IPC_INFO, (struct shmid_ds *) &shminfo) < 0)
return -oserror();
shm_limits->shmmax = shminfo.shmmax;
shm_limits->shmmin = shminfo.shmmin;
shm_limits->shmmni = shminfo.shmmni;
shm_limits->shmseg = shminfo.shmseg;
shm_limits->shmall = shminfo.shmall;
return 0;
}
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