reference/C/MAN/sleep.htm


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<TITLE>sleep</TITLE>
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<pre>


<h3>SLEEP(3)            Linux Programmer's Manual            SLEEP(3)
</h3>

<h3>NAME
</h3>       sleep - Sleep for the specified number of seconds

<h3>SYNOPSIS
</h3>       #include &lt;unistd.h&gt;

       unsigned int sleep(unsigned int seconds);

<h3>DESCRIPTION
</h3>       sleep() makes the current process sleep until seconds sec-
       onds have  elapsed  or  a  signal  arrives  which  is  not
       ignored.

<h3>RETURN VALUE
</h3>       Zero  if  the requested time has elapsed, or the number of
       seconds left to sleep.

<h3>CONFORMS TO
</h3>       POSIX.1

<h3>BUGS
</h3>       sleep() may be implemented using SIGALRM; mixing calls  to
       alarm() and sleep() is a bad idea.

       Using  longjmp()  from  a  signal handler or modifying the
       handling of SIGALRM while sleeping  will  cause  undefined
       results.

</pre>
<hr>
<h3>SEE ALSO
</h3><p>
<a href=signal.htm>signal</a>, 
<a href=alarm.htm>alarm</a>, 
<pre>


<h3>GNU                       April 7, 1993                         1
</h3>


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