coordinator.py 文件源码

def _release_granted(self):
        # At the end of every hook, release all locks granted to
        # this unit. If a hook neglects to make use of what it
        # requested, it will just have to make the request again.
        # Implicit release is the only way this will work, as
        # if the unit is standalone there may be no future triggers
        # called to do a manual release.
        unit = hookenv.local_unit()
        for lock in list(self.requests[unit].keys()):
            if self.granted(lock):
                self.msg('Released local {} lock'.format(lock))
                del self.requests[unit][lock]