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ALARM(2)                      System Calls Manual                     ALARM(2)

NAME
       alarm - schedule signal after specified time

SYNOPSIS
       #include <unistd.h>

       unsigned int alarm(unsigned int seconds)

DESCRIPTION
       Alarm  causes  signal  SIGALRM,  see  sigaction(2),  to  be sent to the
       invoking process in a number of seconds given by the argument.   Unless
       caught or ignored, the signal terminates the process.

       Alarm requests are not stacked; successive calls reset the alarm clock.
       If the argument is 0,  any  alarm  request  is  canceled.   Because  of
       scheduling delays, resumption of execution of when the signal is caught
       may be delayed an arbitrary amount.

       The return value is the amount of  time  previously  remaining  in  the
       alarm clock.

SEE ALSO
       pause(2), sigsuspend(2), sigaction(2), sleep(3).

4th Berkeley Distribution        May 27, 1986                         ALARM(2)
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO