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Length: 971 (0x3cb)
Types: TextFile
Notes: UNIX file
Names: »alarm.2«
└─⟦26887b7e0⟧ Bits:30009717 Comet 32 harddisk image
└─⟦28c352965⟧ »/a« UNIX Filesystem
└─⟦this⟧ »usr/man/man2/alarm.2«
.ig @(#)alarm.2 2.1 7/1/84 @(#)Copyright (C) 1983 by National Semiconductor Corp. .. .TH ALARM 2 .SH NAME alarm \- schedule signal after specified time .SH SYNOPSIS .nf .B alarm(seconds) .B unsigned seconds; .fi .SH DESCRIPTION .I Alarm causes signal SIGALRM, see .IR signal (2), to be sent to the invoking process in the number of seconds given by the argument. Unless caught or ignored, the signal terminates the process. .PP Alarm requests are not stacked; successive calls reset the alarm clock. If the argument is 0, any alarm request is canceled. Because the clock has a 1-second resolution, the signal may occur up to one second early; because of scheduling delays, resumption of execution when the signal is caught may be delayed an arbitrary amount. The longest specifiable delay time is 2147483647 seconds. .PP The return value is the amount of time previously remaining in the alarm clock. .SH "SEE ALSO" pause(2), signal(2), sigsys(2), sigset(3), sleep(3)