4.3BSD - /usr/man/cat3/alarm.0

ALARM(3F)                                                            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 sec‐
       onds. If time is ‘‘0’’, the alarm is turned off and no routine will  be
       called.   The  returned  value  will  be the time remaining on the last
       alarm.

FILES
       /usr/lib/libU77.a

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

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


4.2 Berkeley Distribution        May 15, 1985                        ALARM(3F)