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/* Copyright (C) 1998-99 Martin Baulig
This file is part of LibGTop 1.0.
Contributed by Martin Baulig <martin@home-of-linux.org>, April 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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <config.h>
#include <glibtop.h>
#include <glibtop/sem_limits.h>
#include <glibtop/error.h>
#include "utils.h"
static const unsigned long _glibtop_sysdeps_sem_limits =
(1 << GLIBTOP_IPC_SEMMNI) + (1 << GLIBTOP_IPC_SEMMSL) +
(1 << GLIBTOP_IPC_SEMOPM) + (1 << GLIBTOP_IPC_SEMUME) +
(1 << GLIBTOP_IPC_SEMUSZ) + (1 << GLIBTOP_IPC_SEMVMX) +
(1 << GLIBTOP_IPC_SEMAEM);
/* Init function. */
void
_glibtop_init_sem_limits_p (glibtop *server)
{
off_t result;
result = _glibtop_get_kmem_offset(server, "seminfo");
if (result <= 0)
{
server->sysdeps.sem_limits = 0;
return;
}
server->machine->seminfo_offset = result;
server->sysdeps.sem_limits = _glibtop_sysdeps_sem_limits;
}
/* Provides information about sysv sem limits. */
void
glibtop_get_sem_limits_p (glibtop *server, glibtop_sem_limits *buf)
{
int result;
struct seminfo seminfo;
glibtop_init_p (server, (1L << GLIBTOP_SYSDEPS_SEM_LIMITS), 0);
memset (buf, 0, sizeof (glibtop_sem_limits));
result = _glibtop_get_kmem_info(server, server->machine->seminfo_offset,
&seminfo, sizeof(seminfo));
if (result <= 0)
{
glibtop_error_io_r (server, "Cannot read seminfo");
return;
}
buf->semmni = seminfo.semmni;
buf->semmsl = seminfo.semmsl;
buf->semopm = seminfo.semopm;
buf->semume = seminfo.semume;
buf->semusz = seminfo.semusz;
buf->semvmx = seminfo.semvmx;
buf->semaem = seminfo.semaem;
buf->flags = _glibtop_sysdeps_sem_limits;
}
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