tuer une ipc

bonjour a tous,

la commande "ipcs" Fournit des informations sur l’usage des ressources IPC, est-ce qu'il ya une commande qui tue une ipc, comme pour les processe quand on fait un "ps" ensuite on fait "kill"

Merci a tous

Si c'est bien les IPC System V dont tu parles, tu peux les supprimer grâce à la fonction ipcrm ;)

Voici en cadeau un lien assez sympa: Aide-mémoire administrateur Linux ;)

Merci beaucoup

meme pour l'aide memoire, c'est trop génial

le problème c'est je travaille en embarqué sur une gateway, donc je n'ai pas réellement la commande ipcs ou ipcrm, je fait un cat /proc/sysvipc pour voir les ipc, et je ne sais pas comment les supprimer de cette manière

Merci encore

Bonjour,

Citation:

Envoyé par ryadh.naouar

[...] je n'ai pas réellement la commande ipcs ou ipcrm, je fait un cat /proc/sysvipc pour voir les ipc, et je ne sais pas comment les supprimer de cette manière [...]

Si "de cette manière" fait référence à "je fais un cat", je doute que cela soit possible.

Par contre, si tu peux compiler un programme pour la plateforme concernée, tu peux t'inspirer de ceci :

Code:

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/*	$OpenBSD: ipcrm.c,v 1.9 2005/02/22 14:56:21 jmc Exp $*/
 
/*
 * Copyright (c) 1994 Adam Glass
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Adam Glass.
 * 4. The name of the Author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY Adam Glass ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL Adam Glass BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 */
 
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <sys/sem.h>
#include <sys/shm.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <ctype.h>
#include <err.h>
#include <signal.h>
 
#define IPC_TO_STR(x) (x == 'Q' ? "msq" : (x == 'M' ? "shm" : "sem"))
#define IPC_TO_STRING(x) (x == 'Q' ? "message queue" : \
	(x == 'M' ? "shared memory segment" : "semaphore"))
 
int signaled;
 
void	usage(void);
int	msgrm(key_t, int);
int	shmrm(key_t, int);
int	semrm(key_t, int);
void	not_configured(int);
 
void
usage(void)
{
	extern char *__progname;
	fprintf(stderr, "usage: %s [-M shmkey] [-m shmid] [-Q msgkey]\n"
			"         [-q msqid] [-S semkey] [-s semid] ...\n",
		__progname);
	exit(1);
}
 
int
msgrm(key_t key, int id)
{
	if (key) {
		id = msgget(key, 0);
		if (id == -1)
			return (-1);
	}
	return (msgctl(id, IPC_RMID, NULL));
}
 
int
shmrm(key_t key, int id)
{
	if (key) {
		id = shmget(key, 0, 0);
		if (id == -1)
			return (-1);
	    }
	return (shmctl(id, IPC_RMID, NULL));
}
 
int
semrm(key_t key, int id)
{
	union semun arg;
 
	if (key) {
		id = semget(key, 0, 0);
		if (id == -1)
			return (-1);
	}
	return (semctl(id, 0, IPC_RMID, arg));
}
 
/* ARGSUSED */
void
not_configured(int signo)
{
	signaled++;
}
 
int
main(int argc, char *argv[])
{
	int c, result, errflg, target_id;
	key_t target_key;
 
	errflg = 0;
	signal(SIGSYS, not_configured);
	while ((c = getopt(argc, argv, ":q:m:s:Q:M:S:")) != -1) {
		signaled = 0;
		switch (c) {
		case 'q':
		case 'm':
		case 's':
			target_id = atoi(optarg);
			if (c == 'q')
				result = msgrm(0, target_id);
			else if (c == 'm')
				result = shmrm(0, target_id);
			else
				result = semrm(0, target_id);
			if (result < 0) {
				errflg++;
				if (!signaled)
					warn("%sid(%d)",
					    IPC_TO_STR(toupper(c)), target_id);
				else
					warnx("%ss are not configured in the running kernel",
					    IPC_TO_STRING(toupper(c)));
			}
			break;
		case 'Q':
		case 'M':
		case 'S':
			target_key = atol(optarg);
			if (target_key == IPC_PRIVATE) {
				warnx("can't remove private %ss", IPC_TO_STRING(c));
				continue;
			}
			if (c == 'Q')
				result = msgrm(target_key, 0);
			else if (c == 'M')
				result = shmrm(target_key, 0);
			else
				result = semrm(target_key, 0);
			if (result < 0) {
				errflg++;
				if (!signaled)
					warn("%skey(%ld)", IPC_TO_STR(c),
					    target_key);
				else
					warnx("%ss are not configured in the running kernel",
					    IPC_TO_STRING(c));
			}
			break;
		case ':':
			warnx("option -%c requires an argument", optopt);
			usage();
		default:
			warnx("unrecognized option: -%c", optopt);
			usage();
		}
	}
 
	if (optind != argc) {
		warnx("unknown argument: %s", argv[optind]);
		usage();
	}
	exit(errflg);
}

Cordialement,
DS.

OK

merci