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[src/perseant-stdc-iso10646]: src/usr.bin/time 3328901
details: https://anonhg.NetBSD.org/src/rev/69d6187bfc09
branches: perseant-stdc-iso10646
changeset: 850638:69d6187bfc09
user: christos <christos%NetBSD.org@localhost>
date: Sat Jul 15 14:34:09 2017 +0000
description:
3328901
diffstat:
usr.bin/time/ext.h | 5 +
usr.bin/time/time.c | 215 ++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 220 insertions(+), 0 deletions(-)
diffs (228 lines):
diff -r d16929d993f7 -r 69d6187bfc09 usr.bin/time/ext.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usr.bin/time/ext.h Sat Jul 15 14:34:09 2017 +0000
@@ -0,0 +1,5 @@
+/* $NetBSD: ext.h,v 1.3.2.2 2017/07/15 14:34:09 christos Exp $ */
+
+/* borrowed from ../../bin/csh/extern.h */
+void prusage1(FILE *, const char *fmt, struct rusage *, struct rusage *,
+ struct timespec *, struct timespec *);
diff -r d16929d993f7 -r 69d6187bfc09 usr.bin/time/time.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usr.bin/time/time.c Sat Jul 15 14:34:09 2017 +0000
@@ -0,0 +1,215 @@
+/* $NetBSD: time.c,v 1.23.2.2 2017/07/15 14:34:09 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 <sys/cdefs.h>
+#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 1.23.2.2 2017/07/15 14:34:09 christos Exp $");
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/wait.h>
+#include <errno.h>
+#include <err.h>
+#include <locale.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#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 <fmt>] 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);
+}
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