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https://github.com/freebsd/freebsd-src
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142 lines
3.9 KiB
C
142 lines
3.9 KiB
C
/*
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* Copyright (c) 1994 David Greenman
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* Copyright (c) 1994 Henrik Vestergaard Draboel (hvd@terry.ping.dk)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Henrik Vestergaard Draboel.
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* This product includes software developed by David Greenman.
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* 4. Neither the names of the authors nor the names of contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id$
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*/
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#include <sys/param.h>
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#include <sys/rtprio.h>
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#include <sys/errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <unistd.h>
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static void usage();
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int
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main(argc, argv)
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int argc;
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char **argv;
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{
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char *p;
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int proc = 0;
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struct rtprio rtp;
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/* find basename */
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if ((p = rindex(argv[0], '/')) == NULL)
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p = argv[0];
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else
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++p;
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if (!strcmp(p, "rtprio"))
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rtp.type = RTP_PRIO_REALTIME;
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else if (!strcmp(p, "idprio"))
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rtp.type = RTP_PRIO_IDLE;
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switch (argc) {
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case 2:
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proc = abs(atoi(argv[1])); /* Should check if numeric
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* arg! */
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/* FALLTHROUGH */
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case 1:
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if (rtprio(RTP_LOOKUP, proc, &rtp) != 0) {
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perror(argv[0]);
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exit (1);
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}
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printf("%s: ", p);
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switch (rtp.type) {
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case RTP_PRIO_REALTIME:
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printf("realtime priority %d\n", rtp.prio);
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break;
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case RTP_PRIO_NORMAL:
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printf("normal priority\n");
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break;
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case RTP_PRIO_IDLE:
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printf("idle priority %d\n", rtp.prio);
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break;
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default:
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printf("invalid priority type %d\n", rtp.type);
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break;
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}
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exit(0);
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default:
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if (argv[1][0] == '-' || isdigit(argv[1][0])) {
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if (argv[1][0] == '-') {
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if (strcmp(argv[1], "-t") == 0) {
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rtp.type = RTP_PRIO_NORMAL;
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rtp.prio = 0;
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} else {
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usage(p);
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break;
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}
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} else {
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rtp.prio = atoi(argv[1]);
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}
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} else {
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usage(p);
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break;
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}
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if (argv[2][0] == '-')
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proc = -atoi(argv[2]);
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if (rtprio(RTP_SET, proc, &rtp) != 0) {
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perror(argv[0]);
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exit (1);
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}
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if (proc == 0) {
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execvp(argv[2], &argv[2]);
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perror(argv[0]);
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exit (1);
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}
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}
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exit (1);
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}
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static void
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usage(basename)
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char *basename;
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{
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(void) fprintf(stderr, "usage: %s\n", basename);
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(void) fprintf(stderr, "usage: %s [-]pid\n", basename);
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(void) fprintf(stderr, "usage: %s priority command [ args ] \n", basename);
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(void) fprintf(stderr, "usage: %s priority -pid \n", basename);
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(void) fprintf(stderr, "usage: %s -t command [ args ] \n", basename);
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(void) fprintf(stderr, "usage: %s -t -pid \n", basename);
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exit(-1);
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}
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