/* 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/sem_limits.h>

#include <sys/ipc.h>

#include <sys/sem.h>

#ifdef _SEM_SEMUN_UNDEFINED

/* glibc 2.1 will no longer defines semun, instead it defines

 * _SEM_SEMUN_UNDEFINED so users can define semun on their own.

 * Thanks to Albert K T Hui <avatar@deva.net>. */

union semun

{

	int val;

	struct semid_ds *buf;

	unsigned short int *array;

	struct seminfo *__buf;

};

#endif

static const unsigned long _glibtop_sysdeps_sem_limits =

(1L << GLIBTOP_IPC_SEMMAP) + (1L << GLIBTOP_IPC_SEMMNI) +

(1L << GLIBTOP_IPC_SEMMNS) + (1L << GLIBTOP_IPC_SEMMNU) +

(1L << GLIBTOP_IPC_SEMMSL) + (1L << GLIBTOP_IPC_SEMOPM) +

(1L << GLIBTOP_IPC_SEMUME) + (1L << GLIBTOP_IPC_SEMUSZ) +

(1L << GLIBTOP_IPC_SEMVMX) + (1L << GLIBTOP_IPC_SEMAEM);

/* Init function. */

void

_glibtop_init_sem_limits_s (glibtop *server)

{

	server->sysdeps.sem_limits = _glibtop_sysdeps_sem_limits;

}

/* Provides information about sysv ipc limits. */

void

glibtop_get_sem_limits_s (glibtop *server, glibtop_sem_limits *buf)

{

	struct seminfo	seminfo;

	union semun	arg;

	memset (buf, 0, sizeof (glibtop_sem_limits));

	buf->flags = _glibtop_sysdeps_sem_limits;

	arg.array = (void *) &seminfo;

	semctl (0, 0, IPC_INFO, arg);

	buf->semmap = seminfo.semmap;

	buf->semmni = seminfo.semmni;

	buf->semmns = seminfo.semmns;

	buf->semmnu = seminfo.semmnu;

	buf->semmsl = seminfo.semmsl;

	buf->semopm = seminfo.semopm;

	buf->semume = seminfo.semume;

	buf->semusz = seminfo.semusz;

	buf->semvmx = seminfo.semvmx;

	buf->semaem = seminfo.semaem;

}