Re: 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 <php@beccati.com> wrote: > Hi, > > On 02/09/2014 15:38, guilhermeblanco@gmail.com 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 MSN: guilhermeblanco@hotmail.com GTalk: guilhermeblanco Toronto - ON/Canada