alarm man page on Minix

alarm man page on Minix

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ALARM(2)							      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 invok‐
       ing 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 sched‐
       uling  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)

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