comparison mercurial/lock.py @ 28959:518c3e392f75

lock: clear postrelease hooks list after usage

Post release hooks should only be called once. Setting the
list to None after usage will prevent accidental usage after
they are used.

In addition, it is easy for reference cycles to sneak into hook
functions. Clearing the hooks after usage helps prevent these
cycles.

28958:77e566fe31ec

            # The postrelease functions typically assume the lock is not held
            # at all.
            if not self._parentheld:
                for callback in self.postrelease:
                    callback()

def release(*locks):
    for lock in locks:
        if lock is not None:
            lock.release()

28959:518c3e392f75

            # The postrelease functions typically assume the lock is not held
            # at all.
            if not self._parentheld:
                for callback in self.postrelease:
                    callback()
                # Prevent double usage and help clear cycles.
                self.postrelease = None

def release(*locks):
    for lock in locks:
        if lock is not None:
            lock.release()