[vlc-devel] [PATCH] input: reduce the number of locks for every MainLoop cycle

[Rémi Denis-Courmont]

Le 2015-12-11 13:36, Steve Lhomme a écrit :
> On Fri, Dec 11, 2015 at 12:13 PM, Rémi Denis-Courmont
> <remi at remlab.net> wrote:
>> Le 2015-12-11 13:04, Steve Lhomme a écrit :
>>>
>>> replaces https://patches.videolan.org/patch/11689/
>>
>>
>> I don't see the point. We need the control lock to change the value 
>> anyway.
>
> input_Stopped() is called in a few loops without the lock, especially
> in MainLoop. Isn't a lock/unlock expensive operation ?

On the fast path, it should be an atomic operation.

-- 
Rémi Denis-Courmont
http://www.remlab.net/