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