minix man page for alarm

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)