BSD 4.4 Lite Usr.bin Sources

3 files changed, 244 insertions, 0 deletions

diff --git a/usr.bin/time/Makefile b/usr.bin/time/Makefile
new file mode 100644
index 0000000..ae649c7
--- /dev/null
+++ b/usr.bin/time/Makefile
@@ -0,0 +1,5 @@
+#	@(#)Makefile	8.1 (Berkeley) 6/6/93
+
+PROG=	time
+
+.include <bsd.prog.mk>
diff --git a/usr.bin/time/time.1 b/usr.bin/time/time.1
new file mode 100644
index 0000000..f68c6f4
--- /dev/null
+++ b/usr.bin/time/time.1
@@ -0,0 +1,99 @@
+.\" Copyright (c) 1980, 1991, 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. 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.
+.\"
+.\"     @(#)time.1	8.1 (Berkeley) 6/6/93
+.\"
+.Dd June 6, 1993
+.Dt TIME 1
+.Os BSD 4
+.Sh NAME
+.Nm time
+.Nd time command execution
+.Sh SYNOPSIS
+.Nm time
+.Op Fl l
+.Ar command
+.Sh DESCRIPTION
+The
+.Nm time
+utility
+executes and
+times
+.Ar command
+by initiating a timer and passing the
+.Ar command
+to the
+shell.
+After the
+.Ar command
+finishes,
+.Nm time
+writes to the standard error stream,
+(in seconds): 
+the total time elapsed,
+time consumed by system overhead,
+and the time used to execute the
+.Ar command
+process.
+.Pp
+Available options:
+.Bl -tag -width Ds
+.It Fl l
+The contents of the
+.Em rusage
+structure are printed as well.
+.El
+.Pp
+The
+.Xr csh 1
+has its own and syntactically different builtin version of
+.Nm time.
+The command described here
+is available as
+.Pa /usr/bin/time
+to
+.Xr csh
+users.
+.Sh BUGS
+The granularity of seconds on micro processors is crude and
+can result in times being reported for CPU usage which are too large by
+a second.
+.Sh SEE ALSO
+.Xr csh 1
+.Sh FILES
+.Bl -tag -width /usr/include/sys/h/resource.h -compact
+.It Pa /usr/include/sys/h/resource.h
+.El
+.Sh HISTORY
+A
+.Nm
+command appeared in
+.At v6 .
diff --git a/usr.bin/time/time.c b/usr.bin/time/time.c
new file mode 100644
index 0000000..72c3766
--- /dev/null
+++ b/usr.bin/time/time.c
@@ -0,0 +1,140 @@
+/*
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1987, 1988, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)time.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/signal.h>
+#include <stdio.h>
+
+main(argc, argv)
+	int argc;
+	char **argv;
+{
+	extern int optind;
+	register int pid;
+	int ch, status, lflag;
+	struct timeval before, after;
+	struct rusage ru;
+
+	lflag = 0;
+	while ((ch = getopt(argc, argv, "l")) != EOF)
+		switch((char)ch) {
+		case 'l':
+			lflag = 1;
+			break;
+		case '?':
+		default:
+			fprintf(stderr, "usage: time [-l] command.\n");
+			exit(1);
+		}
+
+	if (!(argc -= optind))
+		exit(0);
+	argv += optind;
+
+	gettimeofday(&before, (struct timezone *)NULL);
+	switch(pid = vfork()) {
+	case -1:			/* error */
+		perror("time");
+		exit(1);
+		/* NOTREACHED */
+	case 0:				/* child */
+		execvp(*argv, argv);
+		perror(*argv);
+		_exit(1);
+		/* NOTREACHED */
+	}
+	/* parent */
+	(void)signal(SIGINT, SIG_IGN);
+	(void)signal(SIGQUIT, SIG_IGN);
+	while (wait3(&status, 0, &ru) != pid);		/* XXX use waitpid */
+	gettimeofday(&after, (struct timezone *)NULL);
+	if (status&0377)
+		fprintf(stderr, "Command terminated abnormally.\n");
+	after.tv_sec -= before.tv_sec;
+	after.tv_usec -= before.tv_usec;
+	if (after.tv_usec < 0)
+		after.tv_sec--, after.tv_usec += 1000000;
+	fprintf(stderr, "%9ld.%02ld real ", after.tv_sec, after.tv_usec/10000);
+	fprintf(stderr, "%9ld.%02ld user ",
+	    ru.ru_utime.tv_sec, ru.ru_utime.tv_usec/10000);
+	fprintf(stderr, "%9ld.%02ld sys\n",
+	    ru.ru_stime.tv_sec, ru.ru_stime.tv_usec/10000);
+	if (lflag) {
+		int hz = 100;			/* XXX */
+		long ticks;
+
+		ticks = hz * (ru.ru_utime.tv_sec + ru.ru_stime.tv_sec) +
+		     hz * (ru.ru_utime.tv_usec + ru.ru_stime.tv_usec) / 1000000;
+		fprintf(stderr, "%10ld  %s\n",
+			ru.ru_maxrss, "maximum resident set size");
+		fprintf(stderr, "%10ld  %s\n",
+			ru.ru_ixrss / ticks, "average shared memory size");
+		fprintf(stderr, "%10ld  %s\n",
+			ru.ru_idrss / ticks, "average unshared data size");
+		fprintf(stderr, "%10ld  %s\n",
+			ru.ru_isrss / ticks, "average unshared stack size");
+		fprintf(stderr, "%10ld  %s\n",
+			ru.ru_minflt, "page reclaims");
+		fprintf(stderr, "%10ld  %s\n",
+			ru.ru_majflt, "page faults");
+		fprintf(stderr, "%10ld  %s\n",
+			ru.ru_nswap, "swaps");
+		fprintf(stderr, "%10ld  %s\n",
+			ru.ru_inblock, "block input operations");
+		fprintf(stderr, "%10ld  %s\n",
+			ru.ru_oublock, "block output operations");
+		fprintf(stderr, "%10ld  %s\n",
+			ru.ru_msgsnd, "messages sent");
+		fprintf(stderr, "%10ld  %s\n",
+			ru.ru_msgrcv, "messages received");
+		fprintf(stderr, "%10ld  %s\n",
+			ru.ru_nsignals, "signals received");
+		fprintf(stderr, "%10ld  %s\n",
+			ru.ru_nvcsw, "voluntary context switches");
+		fprintf(stderr, "%10ld  %s\n",
+			ru.ru_nivcsw, "involuntary context switches");
+	}
+	exit (status>>8);
+}