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Annotation of 43BSDReno/lib/libc/gen/alarm.3, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1980 Regents of the University of California.
        !             2: .\" All rights reserved.  The Berkeley software License Agreement
        !             3: .\" specifies the terms and conditions for redistribution.
        !             4: .\"
        !             5: .\"    @(#)alarm.3     6.3 (Berkeley) 5/27/86
        !             6: .\"
        !             7: .TH ALARM 3C  "May 27, 1986"
        !             8: .UC 4
        !             9: .SH NAME
        !            10: alarm \- schedule signal after specified time
        !            11: .SH SYNOPSIS
        !            12: .nf
        !            13: .B alarm(seconds)
        !            14: .B unsigned seconds;
        !            15: .fi
        !            16: .SH DESCRIPTION
        !            17: .ft B
        !            18: This interface is made obsolete by setitimer(2).
        !            19: .ft R
        !            20: .PP
        !            21: .I Alarm
        !            22: causes signal SIGALRM, see
        !            23: .IR sigvec (2),
        !            24: to be sent to the invoking process
        !            25: in a number of seconds given by the argument.
        !            26: Unless caught or ignored, the signal terminates the process.
        !            27: .PP
        !            28: Alarm requests are not stacked; successive calls reset the alarm clock.
        !            29: If the argument is 0, any alarm request is canceled.
        !            30: Because of scheduling delays,
        !            31: resumption of execution of when the signal is
        !            32: caught may be delayed an arbitrary amount.
        !            33: The longest specifiable delay time is 2147483647 seconds.
        !            34: .PP
        !            35: The return value is the amount of time previously remaining in the alarm clock.
        !            36: .SH "SEE ALSO"
        !            37: sigpause(2), sigvec(2), signal(3C), sleep(3), ualarm(3), usleep(3)

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