Name
sleep — Sleep for the specified number of
seconds
Synopsis
#include <unistd.h>
unsigned int sleep( |
unsigned int |
seconds) ; |
DESCRIPTION
sleep
() makes the current
process sleep until seconds
seconds have elapsed or
a signal arrives which is not ignored.
RETURN VALUE
Zero if the requested time has elapsed, or the number of
seconds left to sleep.
CONFORMING TO
POSIX.1-2001.
BUGS
sleep
() may be implemented
using SIGALRM
; mixing calls to
alarm(3) and sleep
() is a bad idea.
Using longjmp(3) from a signal
handler or modifying the handling of SIGALRM
while sleeping will cause undefined
results.
SEE ALSO
alarm(2), signal(2)
(c) 1993 by Thomas Koenig (ig25@rz.uni-karlsruhe.de)
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Modified Sat Jul 24 18:16:02 1993 by Rik Faith (faith@cs.unc.edu)
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