NetBSD Problem Report #3914

Received: (qmail 19186 invoked from network); 24 Jul 1997 05:18:43 -0000
Message-Id: <199707240519.WAA17293@nooksack.ldc.cs.wwu.edu>
Date: Wed, 23 Jul 1997 22:19:05 -0700 (PDT)
From: denny1@home.com
To: gnats-bugs@gnats.netbsd.org
Subject: wish /bin/sleep handled fractions of a second
X-Send-Pr-Version: www-1.0

>Number:         3914
>Category:       bin
>Synopsis:       wish /bin/sleep handled fractions of a second
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    bin-bug-people
>State:          closed
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Wed Jul 23 22:20:01 +0000 1997
>Closed-Date:    Mon Aug 04 01:17:46 +0000 1997
>Last-Modified:  Fri Mar 30 09:30:02 +0000 2012
>Originator:     Denny Gentry
>Release:        1.2G
>Organization:
>Environment:
Fix was developed on OpenBSD.
>Description:
  I have often wished /bin/sleep could sleep for less than one second,
in the inner loop of a script which I want to slow down slightly.
Such a feature would be an extension to POSIX, which deals only
with full seconds.
  This has been implemented in OpenBSD. The crucial portion of the
code I submitted there has been pasted below. It would be nice to
get such an extension adopted more widely in *BSD, so portable scripts
could use it.
>How-To-Repeat:
  /bin/sleep 0.5
  wish it worked the way you want.
>Fix:
/*	$OpenBSD: sleep.c,v 1.6 1997/06/29 08:09:21 denny Exp $	*/

	cp = *argv;
	while ((*cp != '\0') && (*cp != '.')) {
		if (!isdigit(*cp)) usage();
		secs = (secs * 10) + (*cp++ - '0');
	}

	/* Handle fractions of a second */
	if (*cp == '.') {
		*cp++ = '\0';
		for (i = 100000000; i > 0; i /= 10) {
			if (*cp == '\0') break;
			if (!isdigit(*cp)) usage();
			nsecs += (*cp++ - '0') * i;
		}
	}

	rqtp.tv_sec = (time_t) secs;
	rqtp.tv_nsec = nsecs;

	if ((secs > 0) || (nsecs > 0))
		(void)nanosleep(&rqtp, NULL);
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: perry 
State-Changed-When: Sun Aug 3 18:17:46 PDT 1997 
State-Changed-Why:  
Fixed, but differently than suggested. 
May the spirits of Ken and Dennis forgive me. 
From: "Jukka Ruohonen" <jruoho@netbsd.org>
To: gnats-bugs@gnats.NetBSD.org
Cc: 
Subject: PR/3914 CVS commit: src
Date: Fri, 30 Mar 2012 09:27:11 +0000

 Module Name:	src
 Committed By:	jruoho
 Date:		Fri Mar 30 09:27:10 UTC 2012

 Modified Files:
 	src/distrib/sets/lists/tests: mi
 	src/etc/mtree: NetBSD.dist.tests
 Added Files:
 	src/tests/bin/sleep: Makefile t_sleep.sh

 Log Message:
 Add regression tests for PR bin/3914 and PR bin/27140.


 To generate a diff of this commit:
 cvs rdiff -u -r1.461 -r1.462 src/distrib/sets/lists/tests/mi
 cvs rdiff -u -r1.70 -r1.71 src/etc/mtree/NetBSD.dist.tests
 cvs rdiff -u -r0 -r1.1 src/tests/bin/sleep/Makefile \
     src/tests/bin/sleep/t_sleep.sh

 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

>Unformatted:

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