Re: select implementation not POSIX compliant?

[Manfred Spraul <manfred@colorfullife.com>]

Nick wrote:

>Furthermore, a call to close and then select in the same thread
>blocks while the other thread is still in select, which has a very large
>surprise factor, since the code would work were it not for the other
>select.
>
>  
>
Could you post the test case for this behavior: I assume your test app 
is buggy: a select call that is executed after close returned must 
return EBADF, everything else would be a bug.

Regarding your main point: The return result from select/poll is 
undefined in Linux if you close a descriptor while another thread polls 
or selects it.
This is consistent with the behavior of other Unices - for example HP UX 
kills the process if you replace a descriptor that is being polled with 
dup2.

--
    Manfred