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This package contains the initial implementation of the EventQueue
executive module. It uses a single queue for all events and a single
processing thread, from the context of which all event handlers are
executed. No threads use active polling for the events, i.e. all the
threads in this module are blocked if the underlying platform does not
generate any events.
When a new native event arrives, the receiving thread wakes up, enqueues
the event data and causes the processing thread to wake up. The processing
thread gets the event from the queue and tries to find a registered handler
for this type of events. If a handler is found, the corresponding event
handler is executed.
The internal logic of event handlers is completely up to JSRs. However,
their lengthy execution can affect the event system itself
(by delaying the next event being retrieved from the queue), so potentially
slow or blocking event handlers should use another thread for processing
and return as soon as possible.
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