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/* $Id$ */
/* Copyright (C) 1998-99 Martin Baulig
This file is part of LibGTop 1.0.
Contributed by Martin Baulig <martin@home-of-linux.org>, August 1998.
LibGTop 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.
LibGTop 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 LibGTop; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/shm_limits.h>
#include <sys/types.h>
#include <sys/sysctl.h>
static unsigned long _glibtop_sysdeps_shm_limits =
(1L << GLIBTOP_IPC_SHMMAX) + (1L << GLIBTOP_IPC_SHMMIN) +
(1L << GLIBTOP_IPC_SHMMNI) + (1L << GLIBTOP_IPC_SHMSEG) +
(1L << GLIBTOP_IPC_SHMALL);
/* Init function. */
void
glibtop_init_shm_limits_s (glibtop *server)
{
server->sysdeps.shm_limits = _glibtop_sysdeps_shm_limits;
}
/* Provides information about sysv ipc limits. */
void
glibtop_get_shm_limits_s (glibtop *server, glibtop_shm_limits *buf)
{
size_t len;
int shmmax, shmmin, shmmni, shmseg, shmall;
glibtop_init_s (&server, GLIBTOP_SYSDEPS_SHM_LIMITS, 0);
memset (buf, 0, sizeof (glibtop_shm_limits));
if (server->sysdeps.shm_limits == 0)
return;
len = sizeof (shmmax);
if (sysctlbyname ("kern.ipc.shmmax", &shmmax, &len, NULL, 0)) {
glibtop_warn_io_r (server, "sysctl (kern.ipc.shmmax)");
return;
}
len = sizeof (shmmin);
if (sysctlbyname ("kern.ipc.shmmin", &shmmin, &len, NULL, 0)) {
glibtop_warn_io_r (server, "sysctl (kern.ipc.shmmin)");
return;
}
len = sizeof (shmmni);
if (sysctlbyname ("kern.ipc.shmmni", &shmmni, &len, NULL, 0)) {
glibtop_warn_io_r (server, "sysctl (kern.ipc.shmmni)");
return;
}
len = sizeof (shmseg);
if (sysctlbyname ("kern.ipc.shmseg", &shmseg, &len, NULL, 0)) {
glibtop_warn_io_r (server, "sysctl (kern.ipc.shmseg)");
return;
}
len = sizeof (shmall);
if (sysctlbyname ("kern.ipc.shmall", &shmall, &len, NULL, 0)) {
glibtop_warn_io_r (server, "sysctl (kern.ipc.shmall)");
return;
}
buf->shmmax = shmmax;
buf->shmmin = shmmin;
buf->shmmni = shmmni;
buf->shmseg = shmseg;
buf->shmall = shmall;
buf->flags = _glibtop_sysdeps_shm_limits;
}
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