tree 30f3c5a680dd7ed6435841ecd38166de7654503e
parent 48b069a003ba6c684a9ba78493fbbec5e89f10b8
author Victor Stinner <vstinner@python.org> 1586293909 +0200
committer GitHub <noreply@github.com> 1586293909 +0200
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bpo-40089: Add _at_fork_reinit() method to locks (GH-19195)

Add a private _at_fork_reinit() method to _thread.Lock,
_thread.RLock, threading.RLock and threading.Condition classes:
reinitialize the lock after fork in the child process; reset the lock
to the unlocked state.

Rename also the private _reset_internal_locks() method of
threading.Event to _at_fork_reinit().

* Add _PyThread_at_fork_reinit() private function. It is excluded
  from the limited C API.
* threading.Thread._reset_internal_locks() now calls
  _at_fork_reinit() on self._tstate_lock rather than creating a new
  Python lock object.