alarm(3F)

NAME
     alarm - execute a subroutine after a specified time

SYNOPSIS
     integer function alarm (time, proc)
     integer time
     external proc

DESCRIPTION
     This routine arranges for subroutine proc to be called after time
     seconds. If time is 0, the alarm is turned off and no routine is
     called.  The returned value is the time remaining on the last alarm.

FILES
     /usr/ucb/lib/libU77.a
     /usr/lib/libU77.a

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

SEE ALSO
     sleep(3F), signal(3F)