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142 lines
3.9 KiB
C
142 lines
3.9 KiB
C
/*
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* Copyright (c) 1994 The Regents of the University of California.
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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 the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its 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 REGENTS 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 REGENTS 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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/* Copyright (c) 1994 Henrik Vestergaard Drabøl (hvd@terry.pping.dk) */
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#ifndef lint
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char copyright[] =
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"@(#) Copyright (c) 1989 The Regents of the University of California.\n\
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All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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/*static char sccsid[] = "from: @(#)rtprio.c 5.4 (Berkeley) 6/1/90";*/
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static char rcsid[] = "$Id: rtprio.c,v 1.2 1993/11/23 00:02:23 jtc Exp $";
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#endif /* not lint */
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#include <sys/time.h>
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#include <stdio.h>
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#include <sys/rtprio.h>
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#include <locale.h>
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#include <errno.h>
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#include <err.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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int nrtprio = RTPRIO_RTOFF;
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int proc=0;
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setlocale(LC_ALL, "");
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errno = 0;
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switch (argc) {
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case 2:
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proc = abs(atoi(argv[1]));
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/* FALLTHROUGH */
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case 1:
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nrtprio = rtprio(proc,RTPRIO_NOCHG);
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fprintf(stderr,"rtprio: %d %s\n",
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nrtprio,
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nrtprio==RTPRIO_RTOFF?"(RTOFF)":"");
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exit(nrtprio);
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/* NOTREACHED */
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default: {
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switch (argv[1][0]) {
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case '-':
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if (strcmp(argv[1],"-t")==0)
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nrtprio = RTPRIO_RTOFF;
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else
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usage();
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break;
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case '0':case '1':case '2':case '3':case '4':
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case '5':case '6':case '7':case '8':case '9':
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nrtprio = atoi (argv[1]);
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if (errno== ERANGE) usage();
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break;
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default:
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usage();
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break;
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}
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switch (argv[2][0]) {
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case '-':
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proc = -atoi(argv[2]);
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break;
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}
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errno = 0;
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nrtprio = rtprio(proc, nrtprio);
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if (errno) {
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err (1, "rtprio");
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/* NOTREACHED */
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}
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if (proc == 0) {
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execvp(argv[2], &argv[2]);
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err ((errno == ENOENT) ? 127 : 126, "%s", argv[2]);}
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/* NOTREACHED */
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}
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}
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return(nrtprio);
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}
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static void
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usage()
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{
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(void)fprintf(stderr, "usage: rtprio\n");
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(void)fprintf(stderr, "usage: rtprio [-] pid\n");
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(void)fprintf(stderr, "usage: rtprio priority command [ args ] \n");
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(void)fprintf(stderr, "usage: rtprio priority -pid \n");
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(void)fprintf(stderr, "usage: rtprio -t command [ args ] \n");
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(void)fprintf(stderr, "usage: rtprio -t -pid \n");
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exit(-1);
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}
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