log all notifications going through NSNotificationCenter

gistfile1.txt

void MyCallBack (CFNotificationCenterRef center,
                 void *observer,
                 CFStringRef name,
                 const void *object,
                 CFDictionaryRef userInfo)
{
    NSLog(@"---\n name: %@\n info: %@", name, userInfo);
}

CFNotificationCenterAddObserver(CFNotificationCenterGetLocalCenter(), NULL, MyCallBack, NULL, NULL, CFNotificationSuspensionBehaviorDeliverImmediately);