Commit e0972c21389a45c60606ce2b842311c27fea2147
2010-08-17T13:18:18
Use conditions instead of current_event_lock to fix a deadlock. Avi Bab correctly noted as bug 3044479 the fact that any thread blocking on current_event_lock will do so while holding th_base_lock, making it impossible for the currently running event's callback to call any other functions that require th_base_lock. This patch switches the current_event_lock code to instead use a condition variable that we wait on if we're trying to mess with a currently-executing event, and that we signal when we're done executing a callback if anybody is waiting on it.