141 lines
4.7 KiB
C
141 lines
4.7 KiB
C
/*
|
|
* Copyright (c) 1987, 1988 The Regents of the University of California.
|
|
* 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 the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
char copyright[] =
|
|
"@(#) Copyright (c) 1987, 1988 The Regents of the University of California.\n\
|
|
All rights reserved.\n";
|
|
#endif /* not lint */
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)time.c 4.9 (Berkeley) 6/1/90";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/time.h>
|
|
#include <sys/resource.h>
|
|
#include <sys/signal.h>
|
|
#include <stdio.h>
|
|
|
|
main(argc, argv)
|
|
int argc;
|
|
char **argv;
|
|
{
|
|
extern int optind;
|
|
register int pid;
|
|
int ch, status, lflag;
|
|
struct timeval before, after;
|
|
struct rusage ru;
|
|
|
|
lflag = 0;
|
|
while ((ch = getopt(argc, argv, "l")) != EOF)
|
|
switch((char)ch) {
|
|
case 'l':
|
|
lflag = 1;
|
|
break;
|
|
case '?':
|
|
default:
|
|
fprintf(stderr, "usage: time [-l] command.\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (!(argc -= optind))
|
|
exit(0);
|
|
argv += optind;
|
|
|
|
gettimeofday(&before, (struct timezone *)NULL);
|
|
switch(pid = vfork()) {
|
|
case -1: /* error */
|
|
perror("time");
|
|
exit(1);
|
|
/* NOTREACHED */
|
|
case 0: /* child */
|
|
execvp(*argv, argv);
|
|
perror(*argv);
|
|
_exit(1);
|
|
/* NOTREACHED */
|
|
}
|
|
/* parent */
|
|
(void)signal(SIGINT, SIG_IGN);
|
|
(void)signal(SIGQUIT, SIG_IGN);
|
|
while (wait3(&status, 0, &ru) != pid); /* XXX use waitpid */
|
|
gettimeofday(&after, (struct timezone *)NULL);
|
|
if (status&0377)
|
|
fprintf(stderr, "Command terminated abnormally.\n");
|
|
after.tv_sec -= before.tv_sec;
|
|
after.tv_usec -= before.tv_usec;
|
|
if (after.tv_usec < 0)
|
|
after.tv_sec--, after.tv_usec += 1000000;
|
|
fprintf(stderr, "%9ld.%02ld real ", after.tv_sec, after.tv_usec/10000);
|
|
fprintf(stderr, "%9ld.%02ld user ",
|
|
ru.ru_utime.tv_sec, ru.ru_utime.tv_usec/10000);
|
|
fprintf(stderr, "%9ld.%02ld sys\n",
|
|
ru.ru_stime.tv_sec, ru.ru_stime.tv_usec/10000);
|
|
if (lflag) {
|
|
int hz = 100; /* XXX */
|
|
long ticks;
|
|
|
|
ticks = hz * (ru.ru_utime.tv_sec + ru.ru_stime.tv_sec) +
|
|
hz * (ru.ru_utime.tv_usec + ru.ru_stime.tv_usec) / 1000000;
|
|
fprintf(stderr, "%10ld %s\n",
|
|
ru.ru_maxrss, "maximum resident set size");
|
|
fprintf(stderr, "%10ld %s\n",
|
|
ru.ru_ixrss / ticks, "average shared memory size");
|
|
fprintf(stderr, "%10ld %s\n",
|
|
ru.ru_idrss / ticks, "average unshared data size");
|
|
fprintf(stderr, "%10ld %s\n",
|
|
ru.ru_isrss / ticks, "average unshared stack size");
|
|
fprintf(stderr, "%10ld %s\n",
|
|
ru.ru_minflt, "page reclaims");
|
|
fprintf(stderr, "%10ld %s\n",
|
|
ru.ru_majflt, "page faults");
|
|
fprintf(stderr, "%10ld %s\n",
|
|
ru.ru_nswap, "swaps");
|
|
fprintf(stderr, "%10ld %s\n",
|
|
ru.ru_inblock, "block input operations");
|
|
fprintf(stderr, "%10ld %s\n",
|
|
ru.ru_oublock, "block output operations");
|
|
fprintf(stderr, "%10ld %s\n",
|
|
ru.ru_msgsnd, "messages sent");
|
|
fprintf(stderr, "%10ld %s\n",
|
|
ru.ru_msgrcv, "messages received");
|
|
fprintf(stderr, "%10ld %s\n",
|
|
ru.ru_nsignals, "signals received");
|
|
fprintf(stderr, "%10ld %s\n",
|
|
ru.ru_nvcsw, "voluntary context switches");
|
|
fprintf(stderr, "%10ld %s\n",
|
|
ru.ru_nivcsw, "involuntary context switches");
|
|
}
|
|
exit (status>>8);
|
|
}
|