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Date: Thu, 3 Jan 2008 21:32:23 +0200
From: Metin KAYA <metin@EnderUNIX.org>
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Cc: freebsd-hackers@freebsd.org
Subject: Re[2]: select
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   Yes Rick, I'm asking this "indefinitely" issue. Is there anything
   that handle this NULL situation a signal, or etc.? How does Linux or
   FreeBSD behave?

> On Thu, Jan 03, 2008 at 08:52:48PM +0200, Metin KAYA wrote:
>> 
>>   How select(2) will behave if I give the "utimeout" parameter as
>>   NULL?

> According to the man page:

>      If timeout is not a null pointer, it specifies the maximum interval to
>      wait for the selection to complete.  System activity can lengthen the
>      interval by an indeterminate amount.

>      If timeout is a null pointer, the select blocks indefinitely.

>      To effect a poll, the timeout argument should not be a null pointer, but
>      it should point to a zero-valued timeval structure.


> -- Rick C. Petty


--                          
Metin KAYA                  
EnderUNIX Software Developer          Endersys Software Engineer
http://www.EnderUNIX.org/metin        http://www.Endersys.com/