[vlc-devel] Locking Issues (OS X)

Brian Weaver cmdrclueless at gmail.com
Mon Dec 21 06:50:02 CET 2009

I'm still trying to track down the menu problem that is haunting me in the current OS X code. I'm making progress and learning a bit about the underlying codebase at the same time. During my bug hunt I've run across something that I'm hoping someone with a deeper understanding can help me sort out. 

Part of the problem is an uneven amount of holding and releasing in the OS X client. I've started to get familiar with the vlc_object_hold() and vlc_object_release(). I've found out that playlist_CurrentItem() returns a vlc_object that has had vlc_hold_object() applied for the callers convenience.   These calls are mainly being applied to the main playlist object (p_input).

I've now discovered another (new?) locking scheme that is being applied to the same object. The two new locking API are vlc_gc_incref() and vlc_gc_decref(). I guess I'm confused on how the two different API interact with each other on the same object. I could really use some hints.


-- Weave

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