sleep(3c) [hpux man page]

sleep(3C)																 sleep(3C)

NAME

       sleep() - suspend execution for interval

SYNOPSIS

DESCRIPTION

       suspends the current process from execution for the number of seconds specified by the argument.

       Actual suspension time can be less than that requested for two reasons:

	 o  Scheduled wakeups occur at fixed 1 second intervals (on the second, according to an internal clock), and

	 o  Any caught signal terminates the sleep following execution of that signal's catching routine.

       Suspension time can be an arbitrary amount longer than requested due to the scheduling of other activity in the system.	The value returned
       by is the "unslept" amount (the requested time minus the time actually slept) in case the caller had an alarm set to go	off  earlier  than
       the end of the requested time, or premature arousal due to another caught signal.

       seconds must be less than 2^31.

APPLICATION USAGE

       If a is generated for a multithreaded process, it may not be delivered to a thread currently in See the sigwait(2) manpage for details.

SEE ALSO

       sigwait(2), signal(5), thread_safety(5).

STANDARDS CONFORMANCE

																	 sleep(3C)

sleep(3UCB)					     SunOS/BSD Compatibility Library Functions					       sleep(3UCB)

NAME

       sleep - suspend execution for interval

SYNOPSIS

       /usr/ucb/cc [ flag ... ] file ...

       int sleep( seconds);
       unsigned seconds;

DESCRIPTION

       sleep() suspends the current process from execution for the number of seconds specified by the argument.  The actual suspension time may be
       up to 1 second less than that requested, because scheduled wakeups occur at fixed 1-second intervals, and may be an arbitrary amount longer
       because of other activity in the system.

       sleep()	is implemented by setting an interval timer and pausing until it expires.  The previous state of this timer is saved and restored.
       If the sleep time exceeds the time to the expiration of the previous value of the timer, the process sleeps only until the timer would have
       expired, and the signal which occurs with the expiration of the timer is sent one second later.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Async-Signal-Safe 	   |
       +-----------------------------+-----------------------------+

SEE ALSO

       alarm(2), getitimer(2), longjmp(3C), siglongjmp(3C), sleep(3C), usleep(3C), attributes(5)

NOTES

       Use of these interfaces should be restricted to only applications written on BSD platforms.  Use of these interfaces with any of the system
       libraries or in multi-thread applications is unsupported.

       SIGALRM should not be blocked or ignored during a call to sleep(). Only a prior call to alarm(2) should generate SIGALRM  for  the  calling
       process	during a call to sleep(). A signal-catching function should not interrupt a call to sleep() to call siglongjmp(3C) or  longjmp(3C)
       to restore an environment saved prior to the sleep() call.

WARNINGS

       sleep() is slightly incompatible with alarm(2).	Programs that do not execute for at least one second  of  clock  time  between	successive
       calls  to  sleep()  indefinitely delay the alarm signal. Use sleep(3C). Each sleep(3C) call postpones the alarm signal that would have been
       sent during the requested sleep period to occur one second later.

SunOS 5.10							    12 Feb 1993 						       sleep(3UCB)