<TITLE>alarm</TITLE> <body bgcolor="#ffffcc"> <hr> <pre> <h3>ALARM(2) Linux Programmer's Manual ALARM(2) </h3> <h3>NAME </h3> alarm - set an alarm clock for delivery of a signal <h3>SYNOPSIS </h3> #include <unistd.h> long alarm(long seconds); <h3>DESCRIPTION </h3> alarm arranges for a SIGALRM signal to be delivered to the process in seconds seconds. If seconds is zero, no new alarm is scheduled. In any event any previously set alarm is cancelled. <h3>RETURN VALUE </h3> alarm returns the number of seconds remaining until any previously scheduled alarm was due to be delivered, or zero if there was no previously scheduled alarm. <h3>NOTES </h3> alarm and setitimer share the same timer; calls to one will interfere with use of the other. Scheduling delays can, as ever, cause the execution of the process to be delayed by an arbitrary amount of time. <h3>CONFORMING TO </h3> SVID, AT&T, POSIX, X/OPEN, BSD 4.3 </pre> <hr> <h3>SEE ALSO </h3><p> <a href=setitimer.htm>setitimer</a>, <a href=signal.htm>signal</a>, <a href=sigaction.htm>sigaction</a>, <a href=gettimeofday.htm>gettimeofday</a>, <a href=select.htm>select</a>, <a href=pause.htm>pause</a>, <a href=sleep.htm>sleep</a>, <pre> <h3>Linux 21 July 1993 1 </h3> </pre> <P> <hr> <p> <center> <table border=2 width=80%> <tr align=center> <td width=25%> <a href=../index.htm>Top</a> </td><td width=25%> <a href=../master_index.html>Master Index</a> </td><td width=25%> <a href=../SYNTAX/keywords.html>Keywords</a> </td><td width=25%> <a href=../FUNCTIONS/index.htm>Functions</a> </td> </tr> </table> </center> <p> <hr> This manual page was brought to you by <i>mjl_man V-2.0</i>
.