NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | CONFORMING TO | BUGS | SEE ALSO | COLOPHON

The Linux Programming Interface

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

NAME         top

       sleep - Sleep for the specified number of seconds

SYNOPSIS         top

       #include <unistd.h>

       unsigned int sleep(unsigned int seconds);

DESCRIPTION         top

       sleep() makes the calling thread sleep until seconds seconds have elapsed or a
       signal arrives which is not ignored.

RETURN VALUE         top

       Zero if the requested time has elapsed, or the number of seconds left to
       sleep, if the call was interrupted by a signal handler.

CONFORMING TO         top

       POSIX.1-2001.

BUGS         top

       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 SIGALRM
       while sleeping will cause undefined results.

SEE ALSO         top

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

COLOPHON         top

       This page is part of release 3.32 of the Linux man-pages project.  A
       description of the project, and information about reporting bugs, can be found
       at http://www.kernel.org/doc/man-pages/.

GNU                                   2010-02-03                             SLEEP(3)

HTML rendering created 2010-12-03 by Michael Kerrisk, author of The Linux Programming Interface