| 1 | #ifndef lint |
| 2 | static char *sccsid = "@(#)time.c 4.4 (Berkeley) %G%"; |
| 3 | #endif |
| 4 | |
| 5 | /* |
| 6 | * time |
| 7 | */ |
| 8 | #include <stdio.h> |
| 9 | #include <signal.h> |
| 10 | #include <sys/types.h> |
| 11 | #include <time.h> |
| 12 | #include <resource.h> |
| 13 | |
| 14 | main(argc, argv) |
| 15 | int argc; |
| 16 | char **argv; |
| 17 | { |
| 18 | int status; |
| 19 | register int p; |
| 20 | struct timeval before, after; |
| 21 | struct rusage ru; |
| 22 | |
| 23 | if (argc<=1) |
| 24 | exit(0); |
| 25 | gettimeofday(&before, 0); |
| 26 | p = fork(); |
| 27 | if (p < 0) { |
| 28 | perror("time"); |
| 29 | exit(1); |
| 30 | } |
| 31 | if (p == 0) { |
| 32 | execvp(argv[1], &argv[1]); |
| 33 | perror(argv[1]); |
| 34 | exit(1); |
| 35 | } |
| 36 | signal(SIGINT, SIG_IGN); |
| 37 | signal(SIGQUIT, SIG_IGN); |
| 38 | while (wait3(&status, 0, &ru) != p) |
| 39 | ; |
| 40 | gettimeofday(&after, 0); |
| 41 | if ((status&0377) != 0) |
| 42 | fprintf(stderr, "Command terminated abnormally.\n"); |
| 43 | after.tv_sec -= before.tv_sec; |
| 44 | after.tv_usec -= before.tv_usec; |
| 45 | if (after.tv_usec < 0) |
| 46 | after.tv_sec--, after.tv_usec += 1000000; |
| 47 | printt("real", &after); |
| 48 | printt("user", &ru.ru_utime); |
| 49 | printt("sys ", &ru.ru_stime); |
| 50 | fprintf(stderr, "\n"); |
| 51 | exit (status>>8); |
| 52 | } |
| 53 | |
| 54 | printt(s, tv) |
| 55 | char *s; |
| 56 | struct timeval *tv; |
| 57 | { |
| 58 | |
| 59 | fprintf(stderr, "%9d.%01d %s ", tv->tv_sec, tv->tv_usec/100000, s); |
| 60 | } |