select

[Garrett Cooper]

Metin KAYA wrote:
>    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/
>   
Nevermind -- yes, block indefinitely, which implies that the program 
won't proceed until it receives an umasked signal and exits or a file 
descriptor becomes available in the 'infinite' time frame.

That would essentially be the same as listen or send though with 
blocking sockets, correct?

-Garrett