Re: Call to GDK_THREADS_ENTER in gtk_main

["Brian J. Tarricone" <bjt23 cornell edu>]

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Padraig O'Briain wrote:
> The function gtk_main contains the code.
> 
>  if (g_main_loop_is_running (main_loops->data))
>     {
>       GDK_THREADS_LEAVE ();
>       g_main_loop_run (loop);
>       GDK_THREADS_ENTER ();
>       gdk_flush ();
>     }
> 
> When GDK_THREADS_LEAVE is called do we expect the mutex to be locked?
> 
> If yes, what code locks it?
> 
> If no, should GDK_THREADS_ENTER be called previously  so that the 
> mutex_unlock call does not fail?

If the thread system hasn't been initialised (i.e., you haven't called
g_thread_init() and gdk_threads_init() before gtk_init()), then
GDK_THREADS_LEAVE() and GDK_THREADS_ENTER() won't do anything.  If you
have, then you're expected to have called gdk_threads_enter() before
calling gtk_main().  Read the gtk/gdk threading docs for more info.

(Might this question be better suited to gtk-app-devel-list?)

	-brian

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