Re: No NONBLOCK flag for dup3() or epoll_create1()?

[Davide Libenzi]

On Wed, 20 Aug 2008, Michael Kerrisk wrote:

> Ulrich
> 
> I've been doing some testing (2.6.27-rc3) of your new
> file-descriptor-creating syscalls that accept flags.  According to
> 
> http://udrepper.livejournal.com/20407.html
> 
> all of the system calls should accept a *_NONBLOCK flag.  All of them do,
> except for two:
> dup3(olfd, newfd, flags)
> and
> epoll_create1(flags).
> 
> For epoll_create1() this certainly appears to be an oversight, since I can't
> think of a reason not to support *_NONBLOCK.

Traditionally the no-wait epoll_wait() has been achieved with a zero 
timeout, but _NONBLOCK support can be easily added if seen as necessary.



- Davide


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