From 5b57d28ffb6e1ef86b50f7d05d977826eae89bfe Mon Sep 17 00:00:00 2001 From: Kiyoshi Aman Date: Fri, 1 Feb 2019 22:55:37 +0000 Subject: initial population --- usr.bin/time/time.c | 215 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 215 insertions(+) create mode 100644 usr.bin/time/time.c (limited to 'usr.bin/time/time.c') diff --git a/usr.bin/time/time.c b/usr.bin/time/time.c new file mode 100644 index 0000000..263db9a --- /dev/null +++ b/usr.bin/time/time.c @@ -0,0 +1,215 @@ +/* $NetBSD: time.c,v 1.23 2017/07/15 14:34:08 christos Exp $ */ + +/* + * Copyright (c) 1987, 1988, 1993 + * 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. 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. + */ + +#include +#ifndef lint +__COPYRIGHT("@(#) Copyright (c) 1987, 1988, 1993\ + The Regents of the University of California. All rights reserved."); +#endif /* not lint */ + +#ifndef lint +#if 0 +static char sccsid[] = "@(#)time.c 8.1 (Berkeley) 6/6/93"; +#endif +__RCSID("$NetBSD: time.c,v 1.23 2017/07/15 14:34:08 christos Exp $"); +#endif /* not lint */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "ext.h" + +__dead static void usage(void); +static void prl(long, const char *); +static void prts(const char *, const char *, const struct timespec *, + const char *); +static void prtv(const char *, const char *, const struct timeval *, + const char *); + +int +main(int argc, char ** volatile argv) +{ + int pid; + int ch, status; + int volatile portableflag; + int volatile lflag; + const char *decpt; + const char *fmt; + const struct lconv *lconv; + struct timespec before, after; + struct rusage ru; + + (void)setlocale(LC_ALL, ""); + + lflag = portableflag = 0; + fmt = NULL; + while ((ch = getopt(argc, argv, "cf:lp")) != -1) { + switch (ch) { + case 'f': + fmt = optarg; + portableflag = 0; + lflag = 0; + break; + case 'c': + fmt = "%Uu %Ss %E %P %X+%Dk %I+%Oio %Fpf+%Ww"; + portableflag = 0; + lflag = 0; + break; + case 'p': + portableflag = 1; + fmt = NULL; + lflag = 0; + break; + case 'l': + lflag = 1; + portableflag = 0; + fmt = NULL; + break; + case '?': + default: + usage(); + } + } + argc -= optind; + argv += optind; + + if (argc < 1) + usage(); + + (void)clock_gettime(CLOCK_MONOTONIC, &before); + switch(pid = vfork()) { + case -1: /* error */ + err(EXIT_FAILURE, "Vfork failed"); + /* NOTREACHED */ + case 0: /* child */ + /* LINTED will return only on failure */ + execvp(*argv, argv); + err((errno == ENOENT) ? 127 : 126, "Can't exec `%s'", *argv); + /* NOTREACHED */ + } + + /* parent */ + (void)signal(SIGINT, SIG_IGN); + (void)signal(SIGQUIT, SIG_IGN); + if ((pid = wait4(pid, &status, 0, &ru)) == -1) + err(EXIT_FAILURE, "wait4 %d failed", pid); + (void)clock_gettime(CLOCK_MONOTONIC, &after); + if (!WIFEXITED(status)) + warnx("Command terminated abnormally."); + timespecsub(&after, &before, &after); + + if ((lconv = localeconv()) == NULL || + (decpt = lconv->decimal_point) == NULL) + decpt = "."; + + if (fmt) { + static struct rusage null_ru; + before.tv_sec = 0; + before.tv_nsec = 0; + prusage1(stderr, fmt, &null_ru, &ru, &after, &before); + } else if (portableflag) { + prts("real ", decpt, &after, "\n"); + prtv("user ", decpt, &ru.ru_utime, "\n"); + prtv("sys ", decpt, &ru.ru_stime, "\n"); + } else { + prts("", decpt, &after, " real "); + prtv("", decpt, &ru.ru_utime, " user "); + prtv("", decpt, &ru.ru_stime, " sys\n"); + } + + if (lflag) { + int hz = (int)sysconf(_SC_CLK_TCK); + unsigned long long ticks; +#define SCALE(x) (long)(ticks ? x / ticks : 0) + + ticks = hz * (ru.ru_utime.tv_sec + ru.ru_stime.tv_sec) + + hz * (ru.ru_utime.tv_usec + ru.ru_stime.tv_usec) / 1000000; + prl(ru.ru_maxrss, "maximum resident set size"); + prl(SCALE(ru.ru_ixrss), "average shared memory size"); + prl(SCALE(ru.ru_idrss), "average unshared data size"); + prl(SCALE(ru.ru_isrss), "average unshared stack size"); + prl(ru.ru_minflt, "page reclaims"); + prl(ru.ru_majflt, "page faults"); + prl(ru.ru_nswap, "swaps"); + prl(ru.ru_inblock, "block input operations"); + prl(ru.ru_oublock, "block output operations"); + prl(ru.ru_msgsnd, "messages sent"); + prl(ru.ru_msgrcv, "messages received"); + prl(ru.ru_nsignals, "signals received"); + prl(ru.ru_nvcsw, "voluntary context switches"); + prl(ru.ru_nivcsw, "involuntary context switches"); + } + + return (WIFEXITED(status) ? WEXITSTATUS(status) : EXIT_FAILURE); +} + +static void +usage(void) +{ + + (void)fprintf(stderr, "Usage: %s [-clp] [-f ] utility [argument ...]\n", + getprogname()); + exit(EXIT_FAILURE); +} + +static void +prl(long val, const char *expn) +{ + + (void)fprintf(stderr, "%10ld %s\n", val, expn); +} + +static void +prts(const char *pre, const char *decpt, const struct timespec *ts, + const char *post) +{ + + (void)fprintf(stderr, "%s%9lld%s%02ld%s", pre, (long long)ts->tv_sec, + decpt, (long)ts->tv_nsec / 10000000, post); +} + +static void +prtv(const char *pre, const char *decpt, const struct timeval *tv, + const char *post) +{ + + (void)fprintf(stderr, "%s%9lld%s%02ld%s", pre, (long long)tv->tv_sec, + decpt, (long)tv->tv_usec / 10000, post); +} -- cgit v1.2.3-60-g2f50