Glib run loop adapter

[Evan Schoenberg, M.D.]

It came up during the meeting on Tuesday that a glib run loop adapter would be helpful for the ongoing vv efforts.  Here is what we were using for msn-pecan integration:

/* Enable a glib run loop adapter */
static void glib_runloop_iterator(CFRunLoopObserverRef observer, CFRunLoopActivity activity, void *info) {
	//Iterate on the glib loop a single time without blocking
	g_main_context_iteration(/* context */ NULL, /* may_block */ FALSE);
}

void adium_purple_eventloop_enable_glib_runloop(void)
{
	if (!g_thread_supported())
		g_thread_init(NULL);

	CFRunLoopObserverRef observer = CFRunLoopObserverCreate(kCFAllocatorDefault, kCFRunLoopBeforeSources,
															/* repeats */ true, /* priority */ 0,
															glib_runloop_iterator, NULL);
	CFRunLoopAddObserver([[NSRunLoop currentRunLoop] getCFRunLoop], observer, kCFRunLoopDefaultMode);
	CFRelease(observer);
}

-Evan