Re: Threads

[Olexiy Avramchenko <olexiy ctech cn ua>]

Tristan Van Berkom wrote:

> On Thu, 16 Dec 2004 02:47:50 +1100, Russell Shaw <rjshaw netspace net au> wrote:
>  
>
> > So if g_main_loop_run() runs for the duration of the app, then there is nothing
> > guarding gdk calls made by gtk callbacks. So, doesn't this mean that every gtk
> > operation in a gtk callback that eventually calls a gdk function, should be
> > surrounded by gdk_threads_enter()/leave() ?
> >    
>
> Callbacks that you register with widgets run outside the threads mutex,
> so yes; you should protect gtk/gdk function calls with
> gdk_threads_enter()/leave().
No, all callbacks from GTK widgets run in the lock, so if you will try 
to lock a global mutex in any signal handler you'll get nothing but 
deadlock. In MT app you should protect timeout and idle callbacks only 
(and, of course, the code from another threads that use any GTK/GDK 
function or data).

   Olexiy