| /* See LICENSE file for copyright and license details. */ |
| #include <sys/times.h> |
| #include <sys/wait.h> |
| |
| #include <errno.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| |
| #include "util.h" |
| |
| static void |
| usage(void) |
| { |
| eprintf("usage: %s [-p] cmd [arg ...]\n", argv0); |
| } |
| |
| int |
| main(int argc, char *argv[]) |
| { |
| pid_t pid; |
| struct tms tms; /* user and sys times */ |
| clock_t r0, r1; /* real time */ |
| long ticks; /* per second */ |
| int status, savederrno, ret = 0; |
| |
| ARGBEGIN { |
| case 'p': |
| break; |
| default: |
| usage(); |
| } ARGEND |
| |
| if (!argc) |
| usage(); |
| |
| if ((ticks = sysconf(_SC_CLK_TCK)) <= 0) |
| eprintf("sysconf _SC_CLK_TCK:"); |
| |
| if ((r0 = times(&tms)) == (clock_t)-1) |
| eprintf("times:"); |
| |
| switch ((pid = fork())) { |
| case -1: |
| eprintf("fork:"); |
| case 0: |
| execvp(argv[0], argv); |
| savederrno = errno; |
| weprintf("execvp %s:", argv[0]); |
| _exit(126 + (savederrno == ENOENT)); |
| default: |
| break; |
| } |
| waitpid(pid, &status, 0); |
| |
| if ((r1 = times(&tms)) == (clock_t)-1) |
| eprintf("times:"); |
| |
| if (WIFSIGNALED(status)) { |
| fprintf(stderr, "Command terminated by signal %d\n", |
| WTERMSIG(status)); |
| ret = 128 + WTERMSIG(status); |
| } |
| |
| fprintf(stderr, "real %f\nuser %f\nsys %f\n", |
| (r1 - r0) / (double)ticks, |
| tms.tms_cutime / (double)ticks, |
| tms.tms_cstime / (double)ticks); |
| |
| if (WIFEXITED(status)) |
| ret = WEXITSTATUS(status); |
| |
| return ret; |
| } |