Re: main loop & asynchronous queues

[Thomas Stover <thomas wsinnovations com>]

Chris Vine wrote:
> In the case of callbacks to execute in the default program loop/context
> (the "main" main loop) a worker thread can use g_idle_add()/
> g_idle_add_full().  To execute a callback in other threads' main loops
> you will have to do it in long-hand, making a GSource object with
> g_idle_source_new(), and attach it to the GMainContext for the thread
> in question (it is relatively trivial).
>   
Wow that might open up some doors, but I've got to understand this 
first. I'm fuzzy on several things. Here is some stabbing in the dark:

GMainLoop *thread1_mainloop, *thread2_mainloop;
GThread *thread2;
GSource *thread2_idle_source;

gboolean thread2_idle_function(gpointer data)
{
...
}

gpointer thread2_entry(gpointer data)
{
thread2_mainloop = g_main_loop_new(NULL, FALSE);
thread2_idle_source =  g_idle_source_new();
g_idle_add(thread2_idle_function, NULL);

g_main_loop_run(thread2_mainloop);
return NULL;
}

some_callback_in_thread1()
{
tell_thread2_idle_function_to_run_somehow();
}

main()
{
g_thread_init();
thread2 = g_thread_create(thread2_entry, NULL, FALSE, NULL);
thread1_mainloop = g_main_loop_new(NULL, FALSE);

establish_some_callback_in_thread1_to_be_called_at_some_point();

g_main_loop_run(thread1_mainloop);
}

So now what?