kc3-lang/libevent

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• Author : Nick Mathewson
  Date : 2010-07-05 13:17:47
  Hash : 17522d2a
  Message : Fix a deadlock related to event-base notification. Diagnosed by Zhou Li, Avi Bab, and Scott Lamb. The problem was that the thread doing the notification could block on write in evthread_notify_base_default while holding the th_base_lock. The main thread would never drain th_notify_fd[0], since it would need th_base_lock to actually trigger events.