Re: time consuming function/loop

[Yogesh M <yzonesoft yahoo com>]

thank you for the useful information, is there a way i
can give user an option to break the thread, like
cancel button.

--- "Brian J. Tarricone" <bjt23 cornell edu> wrote:

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> Yogesh M wrote:
> > One of the function take long time and blocks
> gtk_main. I dont want to put it in thread because it
> contains some part of the code which draws[drawing
> is not allowed in thread]. is there any way i can
> make user to interrupt the thread and break it.
>
> You have three options:
>
> 1) Use a separate thread, and communicate with the
> main thread with a
> GAsyncQueue, and continue to do drawing in the main
> thread.
>
> 2) Initialise the glib/gdk thread systems before
> calling gtk_init(), do
> your processing in another thread, and surround
> calls to gtk/gdk with
> gdk_threads_enter() and gdk_threads_leave()
>
> 3) Keep it the way you have now, but do:
> while(gtk_events_pending())
>     gtk_main_iteration();
> every now and then to process events and redraw
> windows as needed.
>
> The API docs and tutorials will be helpful in the
> former two cases.
>
>       -brian
>
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