blob: a81156eea5dab68905671a74773415bf48048a0b [file] [log] [blame]
Eric Andersenbf960f52000-07-21 21:32:12 +00001/*
2 * Mini renice implementation for busybox
3 *
4 *
5 * Copyright (C) 2000 Dave 'Kill a Cop' Cinege <dcinege@psychosis.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22
Eric Andersenbf960f52000-07-21 21:32:12 +000023#include <stdio.h>
24#include <errno.h>
Eric Andersened3ef502001-01-27 08:24:39 +000025#include <stdlib.h>
Eric Andersenbf960f52000-07-21 21:32:12 +000026#include <sys/time.h>
27#include <sys/resource.h>
Eric Andersencbe31da2001-02-20 06:14:08 +000028#include "busybox.h"
Eric Andersenbf960f52000-07-21 21:32:12 +000029
30
31extern int renice_main(int argc, char **argv)
32{
Matt Kraaideb9d4d2000-12-05 20:07:27 +000033 int prio, status = EXIT_SUCCESS;
Eric Andersenbf960f52000-07-21 21:32:12 +000034
Manuel Novoa III cad53642003-03-19 09:13:01 +000035 if (argc < 3) bb_show_usage();
Eric Andersenbf960f52000-07-21 21:32:12 +000036
37 prio = atoi(*++argv);
38 if (prio > 20) prio = 20;
39 if (prio < -20) prio = -20;
40
41 while (*++argv) {
42 int ps = atoi(*argv);
43 int oldp = getpriority(PRIO_PROCESS, ps);
44
45 if (setpriority(PRIO_PROCESS, ps, prio) == 0) {
46 printf("%d: old priority %d, new priority %d\n", ps, oldp, prio );
47 } else {
Manuel Novoa III cad53642003-03-19 09:13:01 +000048 bb_perror_msg("%d: setpriority", ps);
Matt Kraaideb9d4d2000-12-05 20:07:27 +000049 status = EXIT_FAILURE;
Eric Andersenbf960f52000-07-21 21:32:12 +000050 }
51 }
Matt Kraaideb9d4d2000-12-05 20:07:27 +000052
53 return status;
Eric Andersenbf960f52000-07-21 21:32:12 +000054}