SLEEP

Section: Linux Programmer's Manual (3)
Updated: 1993-04-07
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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() and sleep() is a bad idea.

Using longjmp() from a signal handler or modifying the handling of SIGALRM while sleeping will cause undefined results.  

SEE ALSO

alarm(2), signal(2)


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
CONFORMING TO
BUGS
SEE ALSO

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