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SLEEP(3)		   Linux Programmer's Manual		      SLEEP(3)

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) GNU 1993-04-07 SLEEP(3)

1994 Man-cgi 1.15, Panagiotis Christias <christia@theseas.ntua.gr>