Manpage of SLEEP

SLEEP

Section: Linux Programmer's Manual (3)
Updated: 2016-03-15
Index
 

NAME

sleep - sleep for the specified number of seconds  

SYNOPSIS

#include <unistd.h>unsigned int sleep(unsigned int seconds);
 

DESCRIPTION

sleep() makes the calling thread sleep until secondsseconds 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, if the call was interrupted by a signal handler.  

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).
InterfaceAttributeValue
sleep() Thread safetyMT-Unsafe sig:SIGCHLD/linux

 

CONFORMING TO

POSIX.1-2001, POSIX.1-2008.  

BUGS

sleep() may be implemented using SIGALRM; mixing calls to alarm(2) and sleep() is a bad idea.

Using longjmp(3) from a signal handler or modifying the handling of SIGALRMwhile sleeping will cause undefined results.  

SEE ALSO

sleep(1), alarm(2), nanosleep(2), signal(2), signal(7)


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ATTRIBUTES
CONFORMING TO
BUGS
SEE ALSO

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Time: 22:27:52 GMT, June 20, 2016