SLEEP
Section: Linux Programmer's Manual (3)
Updated: 2010-02-03
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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 calling thread 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,
if the call was interrupted by a signal handler.
CONFORMING TO
POSIX.1-2001.
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
SIGALRM
while sleeping will cause undefined results.
SEE ALSO
alarm(2),
nanosleep(2),
signal(2),
signal(7)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- CONFORMING TO
-
- BUGS
-
- SEE ALSO
-
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