.TH ALARM 2 .SH NAMEalarm \- schedule signal after specified time.SH SYNOPSIS.B alarm(seconds).br.B unsigned seconds;.SH DESCRIPTION.I Alarmcauses signal SIGALRM, see.IR signal (2),to be sent to the invoking processin a number of seconds given by the argument.Unless caught or ignored, the signal terminates the process..PPAlarm requests are not stacked;successive calls reset the alarm clock.If the argument is 0, any alarm request is cancelled.Because the clock has a 1-second resolution,the signal may occur up to one second early;because of scheduling delays,resumption of execution of when the signal iscaught may be delayed an arbitrary amount.The longest specifiable delay time is 65535 seconds..PPThe return value is the amount of timepreviously remaining in the alarm clock..SH "SEE ALSO"pause(2), signal(2), sleep(3).SH ASSEMBLER(alarm = 27.).br(seconds in r0).br.B sys alarm.br(previous amount in r0)