17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate * with the License.
87c478bd9Sstevel@tonic-gate *
97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate * and limitations under the License.
137c478bd9Sstevel@tonic-gate *
147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate *
207c478bd9Sstevel@tonic-gate * CDDL HEADER END
217c478bd9Sstevel@tonic-gate */
227c478bd9Sstevel@tonic-gate /*
23*ace1a5f1Sdp * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
247c478bd9Sstevel@tonic-gate * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate */
267c478bd9Sstevel@tonic-gate
277c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
287c478bd9Sstevel@tonic-gate /* All Rights Reserved */
297c478bd9Sstevel@tonic-gate
307c478bd9Sstevel@tonic-gate /*
317c478bd9Sstevel@tonic-gate * Time a command
327c478bd9Sstevel@tonic-gate */
337c478bd9Sstevel@tonic-gate
347c478bd9Sstevel@tonic-gate #include <stdio.h>
357c478bd9Sstevel@tonic-gate #include <signal.h>
367c478bd9Sstevel@tonic-gate #include <errno.h>
377c478bd9Sstevel@tonic-gate #include <stdlib.h>
387c478bd9Sstevel@tonic-gate #include <unistd.h>
397c478bd9Sstevel@tonic-gate #include <libintl.h>
407c478bd9Sstevel@tonic-gate #include <locale.h>
417c478bd9Sstevel@tonic-gate #include <limits.h>
427c478bd9Sstevel@tonic-gate #include <sys/types.h>
437c478bd9Sstevel@tonic-gate #include <sys/times.h>
447c478bd9Sstevel@tonic-gate #include <sys/wait.h>
457c478bd9Sstevel@tonic-gate
467c478bd9Sstevel@tonic-gate /*
477c478bd9Sstevel@tonic-gate * The following use of HZ/10 will work correctly only if HZ is a multiple
487c478bd9Sstevel@tonic-gate * of 10. However the only values for HZ now in use are 100 for the 3B
497c478bd9Sstevel@tonic-gate * and 60 for other machines.
507c478bd9Sstevel@tonic-gate *
517c478bd9Sstevel@tonic-gate * The first value was HZ/10. Since HZ should be gotten from sysconf()
527c478bd9Sstevel@tonic-gate * it is dynamically initialized at entry to the main program.
537c478bd9Sstevel@tonic-gate */
547c478bd9Sstevel@tonic-gate static clock_t quant[] = { 10, 10, 10, 6, 10, 6, 10, 10, 10 };
557c478bd9Sstevel@tonic-gate static char *pad = "000 ";
567c478bd9Sstevel@tonic-gate static char *sep = "\0\0.\0:\0:\0\0";
577c478bd9Sstevel@tonic-gate static char *nsep = "\0\0.\0 \0 \0\0";
587c478bd9Sstevel@tonic-gate
597c478bd9Sstevel@tonic-gate static void usage(void);
607c478bd9Sstevel@tonic-gate static void printt(char *, clock_t);
617c478bd9Sstevel@tonic-gate
627c478bd9Sstevel@tonic-gate int
main(int argc,char ** argv)637c478bd9Sstevel@tonic-gate main(int argc, char **argv)
647c478bd9Sstevel@tonic-gate {
657c478bd9Sstevel@tonic-gate struct tms buffer;
667c478bd9Sstevel@tonic-gate pid_t p;
677c478bd9Sstevel@tonic-gate int status;
687c478bd9Sstevel@tonic-gate int pflag = 0;
697c478bd9Sstevel@tonic-gate int c;
707c478bd9Sstevel@tonic-gate int clock_tick = CLK_TCK;
717c478bd9Sstevel@tonic-gate clock_t before, after;
727c478bd9Sstevel@tonic-gate
737c478bd9Sstevel@tonic-gate (void) setlocale(LC_ALL, "");
747c478bd9Sstevel@tonic-gate #if !defined(TEXT_DOMAIN)
757c478bd9Sstevel@tonic-gate #define TEXT_DOMAIN "SYS_TEST"
767c478bd9Sstevel@tonic-gate #endif
777c478bd9Sstevel@tonic-gate (void) textdomain(TEXT_DOMAIN);
787c478bd9Sstevel@tonic-gate
797c478bd9Sstevel@tonic-gate while ((c = getopt(argc, argv, "p")) != EOF)
807c478bd9Sstevel@tonic-gate switch (c) {
817c478bd9Sstevel@tonic-gate case 'p':
827c478bd9Sstevel@tonic-gate pflag++;
837c478bd9Sstevel@tonic-gate break;
847c478bd9Sstevel@tonic-gate case '?':
857c478bd9Sstevel@tonic-gate usage();
867c478bd9Sstevel@tonic-gate }
877c478bd9Sstevel@tonic-gate
887c478bd9Sstevel@tonic-gate argc -= optind;
897c478bd9Sstevel@tonic-gate argv += optind;
907c478bd9Sstevel@tonic-gate
917c478bd9Sstevel@tonic-gate /*
927c478bd9Sstevel@tonic-gate * time(1) is only accurate to a tenth of a second. We need to
937c478bd9Sstevel@tonic-gate * determine the number of clock ticks in a tenth of a second in
947c478bd9Sstevel@tonic-gate * order to later divide away what we don't care about.
957c478bd9Sstevel@tonic-gate */
967c478bd9Sstevel@tonic-gate quant[0] = clock_tick/10;
977c478bd9Sstevel@tonic-gate
987c478bd9Sstevel@tonic-gate before = times(&buffer);
997c478bd9Sstevel@tonic-gate if (argc < 1)
1007c478bd9Sstevel@tonic-gate usage();
1017c478bd9Sstevel@tonic-gate p = fork();
1027c478bd9Sstevel@tonic-gate if (p == (pid_t)-1) {
1037c478bd9Sstevel@tonic-gate perror("time");
1047c478bd9Sstevel@tonic-gate exit(2);
1057c478bd9Sstevel@tonic-gate }
1067c478bd9Sstevel@tonic-gate if (p == (pid_t)0) {
1077c478bd9Sstevel@tonic-gate (void) execvp(argv[0], &argv[0]);
1087c478bd9Sstevel@tonic-gate perror(argv[0]);
1097c478bd9Sstevel@tonic-gate if (errno == ENOENT)
1107c478bd9Sstevel@tonic-gate exit(127);
1117c478bd9Sstevel@tonic-gate else
1127c478bd9Sstevel@tonic-gate exit(126);
1137c478bd9Sstevel@tonic-gate }
1147c478bd9Sstevel@tonic-gate (void) signal(SIGINT, SIG_IGN);
1157c478bd9Sstevel@tonic-gate (void) signal(SIGQUIT, SIG_IGN);
1167c478bd9Sstevel@tonic-gate while (wait(&status) != p);
1177c478bd9Sstevel@tonic-gate if ((status & 0377) != '\0')
1187c478bd9Sstevel@tonic-gate (void) fprintf(stderr, "time: %s\n",
1197c478bd9Sstevel@tonic-gate gettext("command terminated abnormally."));
1207c478bd9Sstevel@tonic-gate after = times(&buffer);
1217c478bd9Sstevel@tonic-gate (void) fprintf(stderr, "\n");
1227c478bd9Sstevel@tonic-gate if (pflag)
1237c478bd9Sstevel@tonic-gate (void) fprintf(stderr, "real %.2f\nuser %.2f\nsys %.2f\n",
1247c478bd9Sstevel@tonic-gate (double)(after-before)/clock_tick,
1257c478bd9Sstevel@tonic-gate (double)buffer.tms_cutime/clock_tick,
1267c478bd9Sstevel@tonic-gate (double)buffer.tms_cstime/clock_tick);
1277c478bd9Sstevel@tonic-gate else {
1287c478bd9Sstevel@tonic-gate printt("real", (after-before));
1297c478bd9Sstevel@tonic-gate printt("user", buffer.tms_cutime);
1307c478bd9Sstevel@tonic-gate printt("sys ", buffer.tms_cstime);
1317c478bd9Sstevel@tonic-gate }
1327c478bd9Sstevel@tonic-gate
1337c478bd9Sstevel@tonic-gate return ((status & 0xff00)
1347c478bd9Sstevel@tonic-gate ? (status >> 8)
1357c478bd9Sstevel@tonic-gate : ((status & 0x00ff) ? ((status & ~WCOREFLG) | 0200) : 0));
1367c478bd9Sstevel@tonic-gate }
1377c478bd9Sstevel@tonic-gate
1387c478bd9Sstevel@tonic-gate
1397c478bd9Sstevel@tonic-gate static void
printt(char * s,clock_t a)1407c478bd9Sstevel@tonic-gate printt(char *s, clock_t a)
1417c478bd9Sstevel@tonic-gate {
1427c478bd9Sstevel@tonic-gate int i;
1437c478bd9Sstevel@tonic-gate char digit[9];
1447c478bd9Sstevel@tonic-gate char c;
1457c478bd9Sstevel@tonic-gate int nonzero;
1467c478bd9Sstevel@tonic-gate
1477c478bd9Sstevel@tonic-gate a /= quant[0]; /* Divide away the accuracy we don't care about */
1487c478bd9Sstevel@tonic-gate
1497c478bd9Sstevel@tonic-gate /*
1507c478bd9Sstevel@tonic-gate * We now have the number of tenths of seconds elapsed in terms of
1517c478bd9Sstevel@tonic-gate * ticks. Loop through to determine the actual digits.
1527c478bd9Sstevel@tonic-gate */
1537c478bd9Sstevel@tonic-gate for (i = 1; i < 9; i++) {
1547c478bd9Sstevel@tonic-gate digit[i] = a % quant[i];
1557c478bd9Sstevel@tonic-gate a /= quant[i];
1567c478bd9Sstevel@tonic-gate }
1577c478bd9Sstevel@tonic-gate (void) fprintf(stderr, s);
1587c478bd9Sstevel@tonic-gate nonzero = 0;
1597c478bd9Sstevel@tonic-gate while (--i > 0) {
1607c478bd9Sstevel@tonic-gate c = (digit[i] != 0) ? digit[i]+'0' : (nonzero ? '0': pad[i]);
1617c478bd9Sstevel@tonic-gate if (c != '\0')
1627c478bd9Sstevel@tonic-gate (void) putc(c, stderr);
1637c478bd9Sstevel@tonic-gate nonzero |= digit[i];
1647c478bd9Sstevel@tonic-gate c = nonzero?sep[i]:nsep[i];
1657c478bd9Sstevel@tonic-gate if (c != '\0')
1667c478bd9Sstevel@tonic-gate (void) putc(c, stderr);
1677c478bd9Sstevel@tonic-gate }
1687c478bd9Sstevel@tonic-gate (void) fprintf(stderr, "\n");
1697c478bd9Sstevel@tonic-gate }
1707c478bd9Sstevel@tonic-gate
1717c478bd9Sstevel@tonic-gate static void
usage(void)1727c478bd9Sstevel@tonic-gate usage(void)
1737c478bd9Sstevel@tonic-gate {
1747c478bd9Sstevel@tonic-gate (void) fprintf(stderr,
1757c478bd9Sstevel@tonic-gate gettext("usage: time [-p] utility [argument...]\n"));
1767c478bd9Sstevel@tonic-gate exit(1);
1777c478bd9Sstevel@tonic-gate }
178