Re: [gtkmm] One more time (yesterday:about threads)

[Leandro Fanzone <leandro hasar com>]

In that program you have two threads: one for the gtk main loop (in the
main function), and one you're creating in the constructor of your
window1 class, the one that lives in the "thread" function. You will be
doing things from those two threads, manually through the set_text in
the latter function, and automatically through the X events coming to
the main loop. If those two threads are not mutually excluded, you will
have random crashes. You have two options: whether you serialize
everything to execute X code always in the same thread, or you use
gdk_threads_enter/gdk_threads_leave functions to mutex that code.
Search this very list, this issue has been discussed before.

Leandro.

MIGUELMMC wrote:
> Your answer: 
> > It seems you have a synchronization problem. You should mutex the access 
> > to Gtk, you can't have two Gtk threads running at the same time.
> >   
>
> I don't understand.
> I have a only thread (+Gtk::Main::run), where I mutex? what?
> About my code, in the thread, when I write: set_text(...), all it's OK.,
> but if I write pixmap->set(...) -> freeze! (thread is alive -> printf is
> printing in shell) . What's happen?
>
> Please, it's difficult for me, if you can send me any code...
>
> Thanxs.
>
>
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