Lock the event loop object, effectively blocking the event loop
* thread from processing events. You can use this to enforce
* exclusive access to all objects attached to the event loop. This
* lock is recursive. This function may not be called inside the event
* loop thread. Events that are dispatched from the event loop thread
* are executed with this lock held.
Lock the event loop object, effectively blocking the event loop * thread from processing events. You can use this to enforce * exclusive access to all objects attached to the event loop. This * lock is recursive. This function may not be called inside the event * loop thread. Events that are dispatched from the event loop thread * are executed with this lock held.