[vlc-devel] vlc_object_signal removal

Pierre d'Herbemont pdherbemont at free.fr
Sun Sep 7 23:40:48 CEST 2008

On Sep 7, 2008, at 11:15 PM, Derk-Jan Hartman wrote:

> On 7 sep 2008, at 23:12, Pierre d'Herbemont wrote:
>> On Sun, Sep 7, 2008 at 8:22 PM, Rémi Denis-Courmont
>> <rem at videolan.org> wrote:
>>> Then there is some obscure MacOS X hack whose logic has
>>> resisted my attempts to make any sense out of it.
>> What hack exactly?
> I think he's talking about intf_RunThread's MonitorLibVLCDeath

Yeah, this one is nasty. We need to make sure that a  
vlc_object_kill( libvlc ) exits our interface thread, even if it is  
blocking main thread.

The interface module that is blocking main thread, will spawn a thread  
that will monitor the intf death.

We need to tell that thread that the intf is dead when libvlc is. That  
is what does MonitorLibVLCDeath.

The vlc_object_signal() is used so that we don't kill libvlc if the  
interface didn't do it. Yet we need to kill MonitorLibVLCDeath(), and  
MonitorLibVLCDeath is wait()-ing for a signal(libvlc), but will exit  
if p_intf is dead.

Yet, this is over engineered, as we always kill libvlc when our main  
thread intf is killed (in osx case). So we could remove that signal().


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