Commit Graph

25 Commits

Author SHA1 Message Date
Jilles Tjoelker
c6ef00e390 sleep: Explain in a comment why the [EINTR] check is there.
Suggested by:	eadler
2013-06-05 20:15:18 +00:00
Jilles Tjoelker
c2cfcb6063 sleep: Improve nanosleep() error handling:
* Work around kernel bugs that cause a spurious [EINTR] return if a
   debugger (such as truss(1)) is attached.

 * Write an error message if an error other than [EINTR] occurs.

PR:		bin/178664
2013-05-28 22:07:31 +00:00
Konstantin Belousov
f6e6dc63ab Simplify argument parser by using sscanf(); simplify usage() by not
refusing to use stdio.
Reduce nesting level in the sleep loop by returning earlier for negative
timeouts.
Limit the maximum timeout to INT_MAX seconds.

Submitted by:	bde
MFC after:	3 weeks
2010-08-02 10:57:56 +00:00
Konstantin Belousov
bc9bbbe02c Deal with proper format for printing time_t.
Reported by:	ache
MFC after:	3 weeks
2010-07-31 17:41:58 +00:00
Konstantin Belousov
13d8eedae7 Report the time left for the sleep on SIGINFO.
Be stricter in the checking of interval specification.

PR:	bin/139345
MFC after:	3 weeks
2010-07-31 14:30:11 +00:00
Stefan Farfeleder
5d3e07d4ac Fix a comment.
Submitted by:	Liam J. Foy
2005-08-07 09:11:38 +00:00
Warner Losh
9ddb49cbe4 /*- or .\"- or #- to begin license clauses. 2005-01-10 08:39:26 +00:00
Mark Murray
6195fb4102 Remove clause 3 from the UCB licenses.
OK'ed by:	imp, core
2004-04-06 20:06:54 +00:00
Mark Murray
fcfa4c9589 Fix warnings. This is now WARNS=9, std=c99 clean in i386.
Use return(0) for main() instead of exit(0). Makes it a
wee bit smaller.
2003-05-03 10:14:26 +00:00
David E. O'Brien
09a80d4867 Quiet warnings about copyright[]. 2003-05-01 16:58:57 +00:00
Nate Lawson
e9a4552b14 Minimal take on previous commit -- remove getopt and printf. Static size
is reduced by 40k, dynamic by a few bytes.
Functional changes:
* "sleep -- arg" now returns usage() instead of ignoring the --
* "sleep -1" now returns immediately instead of returning usage()

Reviewed by:	jmallett
2002-11-14 01:14:35 +00:00
Nate Lawson
e021938408 Back out previous commit since there is controversy about changing so much
in sleep including duping strtol(3).  Code changes also increased
dynamic size of sleep(1).
2002-11-14 00:20:58 +00:00
Nate Lawson
174005b7f0 Remove getopt and strtol dependencies, reducing size of static exe.
Preserve older desired behavior, accept [+-]*[0-9]*\.[0-9]*
Remove a few unnecessary casts.

%ls -l /bin/sleep
-r-xr-xr-x  1 root  wheel  61332 Oct 28 05:16 /bin/sleep
%ls -l /usr/obj/usr/src/bin/sleep/sleep
-rwxr-xr-x  1 root  wheel  19124 Nov 13 12:12 /usr/obj/usr/src/bin/sleep/sleep

Submitted by:	Tim Kientzle <kientzle@acm.org>
2002-11-13 20:12:26 +00:00
David E. O'Brien
2749b14129 Consistently use FBSDID 2002-06-30 05:15:05 +00:00
Warner Losh
5134c3f799 o __P has been reoved
o Old-style K&R declarations have been converted to new C89 style
o register has been removed
o prototype for main() has been removed (gcc3 makes it an error)
o int main(int argc, char *argv[]) is the preferred main definition.
o Attempt to not break style(9) conformance for declarations more than
  they already are.
o Change
	int
	foo() {
	...
  to
	int
	foo(void)
	{
	...
2002-02-02 06:50:57 +00:00
Kris Kennaway
0a26b6bbc0 Silence WARNS=2 and BDECFLAGS on alpha and i386
MFC After:	1 week
2001-05-20 05:13:21 +00:00
Ruslan Ermilov
ac14c3115f Let sleep(1) handle fractions of a second (up to nanosecond).
This is a conservative change.  It does the same thing in weird
cases like the old one.  For example, 'sleep abcd' still sleeps
for zero seconds.  `sleep 10.a' and `sleep 10.05aa' do the best
and not abort (ie: 10.a == 10 seconds, 10.05a == 10.05 seconds).
1999-10-01 07:53:40 +00:00
Peter Wemm
2a4562393f $Id$ -> $FreeBSD$ 1999-08-27 23:15:48 +00:00
Philippe Charnier
9ba8bd6557 Correct use of .Nm. Add rcsid. 1998-05-18 06:51:59 +00:00
Warner Losh
93ef08af3e compare return value from getopt against -1 rather than EOF, per the final
posix standard on the topic.
1997-03-28 15:24:41 +00:00
Peter Wemm
b97fa2ef50 Revert $FreeBSD$ to $Id$ 1997-02-22 14:13:04 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Steve Price
db5b8caf54 Cleanup man page and -Wall cleaning. 1996-12-14 06:14:32 +00:00
David Greenman
89730b290a Added $Id$ 1994-09-24 02:59:15 +00:00
Rodney W. Grimes
4b88c807ea BSD 4.4 Lite bin Sources 1994-05-26 06:18:55 +00:00