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RunLoop in Helper Tool
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RunLoop in Helper Tool


  • Subject: RunLoop in Helper Tool
  • From: "Gerriet M. Denkmann" <email@hidden>
  • Date: Sun, 15 Sep 2013 15:32:57 +0700

I have a Helper Tool, running as root, started via SMJobBless and communicating vie Xpc.

Works fine, but:
1. it cannot stop (CFRunLoopStop),
2. Timers never fire
3. NSRunLoop currentMode returns nil.

Maybe all three things are related.

To 1:

if ( asked to quit )
{
	NSRunLoop *currentRunLoop = [ NSRunLoop currentRunLoop ];
	CFRunLoopRef rl = [ currentRunLoop getCFRunLoop ];
	NSLog(@"%s will stop runloop %p",__FUNCTION__, rl);	//	rl ≠ NULL
	CFRunLoopStop ( rl );		//	runLoop will NOT stop
}

Helper Tool main:

int main(int argc, const char * argv[])
{
	@autoreleasepool
	{
		NSString * bundleIdentifier = [[NSBundle mainBundle] bundleIdentifier];
		NSXPCListener *listener = [[NSXPCListener alloc] initWithMachServiceName: bundleIdentifier ];
		listener.delegate = ...;
		[listener resume];
		NSRunLoop *currentRunLoop = [NSRunLoop currentRunLoop];
		[ currentRunLoop run ];
	}

    return EXIT_SUCCESS;
}


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      • From: Marcel Weiher <email@hidden>
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