Re: Thread-generated signals

[Jean Bréfort <jean brefort normalesup org>]

Le vendredi 02 juin 2006 �0:28 -0700, heavenscape a �it :
> Hi Michael,
> 
> I am a beginner in Linux programming, and your suggestion works!  But I am
> still having some problem that the CPU usage is always 100% after the
> program starts.  Could you please look at my code below and give me some
> suggestion? 
> 
> Thanks a lot!!!
> 
> Following is some of my code:
> 
> // idle handler of the main loop
> gboolean OnIdle(int msgQid)
> {
> 	if(thread_signal) 
> 	{
>           	RefreshImage();
> 	}
> 	return TRUE;
> }

Do you need to reexecute indefinitely this idle handler? If not use:
return FALSE;

> int main (int argc, char *argv[])
> {
>  gnome_program_init (PACKAGE, VERSION, LIBGNOMEUI_MODULE,
>                       argc, argv,
>                       GNOME_PARAM_APP_DATADIR, PACKAGE_DATA_DIR,
>                       NULL);
> 
> //register an idle handler to update the image when the background thread
> emits a signal
> 	gdk_threads_enter();
> 	g_idle_add(OnIdle, nMsgQID); /* may need some macros here; I'm a
>  	                         * PyGTK/GTKmm guy, so the C stuff
>    	                         * isn't my forte */
>        gdk_threads_leave(); 
> 
>   MainWnd = create_MainWnd ();
>   gtk_widget_show (MainWnd);
> 
>   gtk_main ();
>   return 0;
> }
> 
> --
> View this message in context: http://www.nabble.com/Thread-generated-signals-t1278505.html#a4675519
> Sent from the Gtk+ - General forum at Nabble.com.
> 
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