Re: [PHP-DEV] Optional nowait argument to sem_acquire

Hi Matteo,

BSD does accept it as sem_timedwait, which I could find a reference for
FreeBSD:

http://www.freebsd.org/cgi/man.cgi?query=sema&sektion=9

Cheers,


On Tue, Sep 2, 2014 at 10:01 AM, Matteo Beccati <[email protected]> wrote:

> Hi,
>
> On 02/09/2014 15:38, [email protected] wrote:
> > I'd propose instead of accepting "nowait" only, I'd use a better support
> > and accept "until", dealing with possible cases:
> >
> >   * -1: Blocks and wait until lock is acquired
> >   * 0: Exactly what your patch does, attempt to grab and if it fails,
> >     just return false (I'd remove the E_WARNING)
>
> (It doesn't. The warning is raised when the semaphore can't be acquired
> for other reasons)
>
> >   * > 0: Acceptable time in milliseconds it would wait until consider
> >     the acquire failed
>
> TBH, I don't know. semtimedop is not universally available (no BSD, as
> far as I can tell) and I would prefer to avoid writing an alternative
> implementation in case it's not available. On the other hand triggering
> an error in such case wouldn't be nice.
>
>
> Cheers
> --
> Matteo Beccati
>
> Development & Consulting - http://www.beccati.com/
>



-- 
Guilherme Blanco
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Toronto - ON/Canada