alarm

alarm(3f)                                                            alarm(3f)



Name
       alarm - executes a subroutine after a specified time

Syntax
       integer alarm, remaining, time
       external alarm, proc
       remaining = alarm ( time, proc )

Description
       The alarm function causes the subroutine specified by proc to be called
       after time seconds.  If time is zero, the alarm is turned off and no
       routine is called.

Restrictions
       The alarm and sleep functions interact.  If sleep is called after
       alarm, the alarm process is never called. The signal SIGALRM occurs at
       the lesser of the remaining alarm time or sleep time.

Return Values
       The value returned is the time remaining on the last alarm.

Files
       libU77.a

See Also
       alarm(3), signal(3f), sleep(3f)



                                                                     alarm(3f)