Commit | Line | Data |
---|---|---|
b1198826 | 1 | /* |
4320bf82 KB |
2 | * Copyright (c) 1987, 1988 The Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
cb956e54 | 5 | * %sccs.include.redist.c% |
b1198826 | 6 | */ |
4320bf82 KB |
7 | |
8 | #ifndef lint | |
9 | char copyright[] = | |
10 | "@(#) Copyright (c) 1987, 1988 The Regents of the University of California.\n\ | |
11 | All rights reserved.\n"; | |
12 | #endif /* not lint */ | |
13 | ||
14 | #ifndef lint | |
cb956e54 | 15 | static char sccsid[] = "@(#)time.c 4.9 (Berkeley) %G%"; |
4320bf82 KB |
16 | #endif /* not lint */ |
17 | ||
63a84c73 | 18 | #include <sys/types.h> |
7afd0a98 BJ |
19 | #include <sys/time.h> |
20 | #include <sys/resource.h> | |
4320bf82 KB |
21 | #include <sys/signal.h> |
22 | #include <stdio.h> | |
63a84c73 BJ |
23 | |
24 | main(argc, argv) | |
b1198826 SL |
25 | int argc; |
26 | char **argv; | |
63a84c73 | 27 | { |
4320bf82 KB |
28 | extern int optind; |
29 | register int pid; | |
30 | int ch, status, lflag; | |
b1198826 SL |
31 | struct timeval before, after; |
32 | struct rusage ru; | |
63a84c73 | 33 | |
4320bf82 KB |
34 | lflag = 0; |
35 | while ((ch = getopt(argc, argv, "l")) != EOF) | |
36 | switch((char)ch) { | |
37 | case 'l': | |
38 | lflag = 1; | |
39 | break; | |
40 | case '?': | |
41 | default: | |
42 | fprintf(stderr, "usage: time [-l] command.\n"); | |
43 | exit(1); | |
44 | } | |
45 | ||
46 | if (!(argc -= optind)) | |
63a84c73 | 47 | exit(0); |
4320bf82 KB |
48 | argv += optind; |
49 | ||
4caff17b | 50 | gettimeofday(&before, (struct timezone *)NULL); |
4320bf82 KB |
51 | switch(pid = vfork()) { |
52 | case -1: /* error */ | |
b1198826 | 53 | perror("time"); |
63a84c73 | 54 | exit(1); |
4320bf82 KB |
55 | /* NOTREACHED */ |
56 | case 0: /* child */ | |
57 | execvp(*argv, argv); | |
58 | perror(*argv); | |
59 | _exit(1); | |
60 | /* NOTREACHED */ | |
63a84c73 | 61 | } |
4320bf82 | 62 | /* parent */ |
4caff17b KB |
63 | (void)signal(SIGINT, SIG_IGN); |
64 | (void)signal(SIGQUIT, SIG_IGN); | |
4320bf82 | 65 | while (wait3(&status, 0, &ru) != pid); /* XXX use waitpid */ |
4caff17b | 66 | gettimeofday(&after, (struct timezone *)NULL); |
4320bf82 | 67 | if (status&0377) |
b1198826 SL |
68 | fprintf(stderr, "Command terminated abnormally.\n"); |
69 | after.tv_sec -= before.tv_sec; | |
70 | after.tv_usec -= before.tv_usec; | |
71 | if (after.tv_usec < 0) | |
72 | after.tv_sec--, after.tv_usec += 1000000; | |
4320bf82 KB |
73 | fprintf(stderr, "%9ld.%02ld real ", after.tv_sec, after.tv_usec/10000); |
74 | fprintf(stderr, "%9ld.%02ld user ", | |
75 | ru.ru_utime.tv_sec, ru.ru_utime.tv_usec/10000); | |
76 | fprintf(stderr, "%9ld.%02ld sys\n", | |
77 | ru.ru_stime.tv_sec, ru.ru_stime.tv_usec/10000); | |
e88e77d8 MK |
78 | if (lflag) { |
79 | int hz = 100; /* XXX */ | |
80 | long ticks; | |
81 | ||
82 | ticks = hz * (ru.ru_utime.tv_sec + ru.ru_stime.tv_sec) + | |
83 | hz * (ru.ru_utime.tv_usec + ru.ru_stime.tv_usec) / 1000000; | |
4caff17b | 84 | fprintf(stderr, "%10ld %s\n", |
e88e77d8 | 85 | ru.ru_maxrss, "maximum resident set size"); |
4caff17b | 86 | fprintf(stderr, "%10ld %s\n", |
e88e77d8 | 87 | ru.ru_ixrss / ticks, "average shared memory size"); |
4caff17b | 88 | fprintf(stderr, "%10ld %s\n", |
e88e77d8 | 89 | ru.ru_idrss / ticks, "average unshared data size"); |
4caff17b | 90 | fprintf(stderr, "%10ld %s\n", |
e88e77d8 | 91 | ru.ru_isrss / ticks, "average unshared stack size"); |
4caff17b | 92 | fprintf(stderr, "%10ld %s\n", |
e88e77d8 | 93 | ru.ru_minflt, "page reclaims"); |
4caff17b | 94 | fprintf(stderr, "%10ld %s\n", |
e88e77d8 | 95 | ru.ru_majflt, "page faults"); |
4caff17b | 96 | fprintf(stderr, "%10ld %s\n", |
e88e77d8 | 97 | ru.ru_nswap, "swaps"); |
4caff17b | 98 | fprintf(stderr, "%10ld %s\n", |
e88e77d8 | 99 | ru.ru_inblock, "block input operations"); |
4caff17b | 100 | fprintf(stderr, "%10ld %s\n", |
e88e77d8 | 101 | ru.ru_oublock, "block output operations"); |
4caff17b | 102 | fprintf(stderr, "%10ld %s\n", |
e88e77d8 | 103 | ru.ru_msgsnd, "messages sent"); |
4caff17b | 104 | fprintf(stderr, "%10ld %s\n", |
e88e77d8 | 105 | ru.ru_msgrcv, "messages received"); |
4caff17b | 106 | fprintf(stderr, "%10ld %s\n", |
e88e77d8 | 107 | ru.ru_nsignals, "signals received"); |
4caff17b | 108 | fprintf(stderr, "%10ld %s\n", |
e88e77d8 | 109 | ru.ru_nvcsw, "voluntary context switches"); |
4caff17b | 110 | fprintf(stderr, "%10ld %s\n", |
e88e77d8 MK |
111 | ru.ru_nivcsw, "involuntary context switches"); |
112 | } | |
b1198826 | 113 | exit (status>>8); |
63a84c73 | 114 | } |