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Ran 28 Feb 2018 04:33AM UTC

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Committed 28 Feb 2018 04:26AM UTC coverage: 80.578% (+80.6%) from 0.0%

Job # EVENT_BUILD_METHOD=cmake EVENT_CMAKE_OPTIONS="-DEVENT__COVERAGE=ON -DCMAKE_BUILD_TYPE=debug" COVERALLS=yes

Build Type

push

travis-ci

Committed by

azat

Commit Message

Fix base unlocking in event_del() if event_base_set() runned in another thread

Image next situation:
  T1:                                        T2:
   event_del_()
     lock the event.ev_base.th_base_lock
     event_del_nolock_()                     event_set_base()
     unlock the event.ev_base.th_base_lock

In this case we will unlock the wrong base after event_del_nolock_()
returns, and deadlock is likely to happens, since event_base_set() do
not check any mutexes (due to it is possible to do this only if event is
not inserted anywhere).

So event_del_() has to cache the base before removing the event, and
cached base.th_base_lock after.

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