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
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