[vlc-devel] [vlc-commits] addons: fix threading and cancelable sections

Steinar H. Gunderson sgunderson at bigfoot.com
Thu Feb 20 19:49:02 CET 2014

On Thu, Feb 20, 2014 at 08:30:04PM +0200, Rémi Denis-Courmont wrote:
> I seem to see the predicate-less condition variable antipattern yet again :-(

>From experience, the simplest way to avoid this antipattern is to simply
encapsulate the correct one in a function call. It becomes a bit verbose
when you don't have std::function and the likes, though.


  bool MyLittlePredicate( void* arg ) {
    // mutex is locked in this function
    return (some_global == 3);

  WaitFor( &mutex, &condvar, MyLittlePredicate, NULL );

Much harder to get wrong for the user.

/* Steinar */
Homepage: http://www.sesse.net/

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