def wait_for_all(self,
promise: HaLinkMessagePromise,
timeout_sec: float = 30.0):
"""
Blocks the current thread until all of the messages in
promise._ids are reported by Motr as delivered.
Raises NotDelivered exception when timeout_sec exceeds.
"""
condition = Condition()
with self.lock:
self.waiting_clients[promise] = condition
LOG.log(TRACE, 'waiting clients %s', self.waiting_clients)
while not promise.is_empty():
with condition:
LOG.log(TRACE, 'Blocking until %s is confirmed', promise)
condition.wait(timeout=timeout_sec)
with self.lock:
if promise not in self.recently_delivered:
raise NotDelivered('None of message tags =' +
str(promise) +
' were delivered to Motr')
confirmed_msgs = self.recently_delivered.pop(promise)
LOG.log(TRACE, 'Thread unblocked - %s just received',
confirmed_msgs)
del self.waiting_clients[promise]
promise.exclude_ids(confirmed_msgs)
if not promise.is_empty():
self.waiting_clients[promise] = condition
def check_if_delivered_locked(
self, promise: HaLinkMessagePromise) -> HaLinkMessagePromise:
if not self.lock.locked():
raise RuntimeError('DeliveryHerald.lock not acquired')
if promise in self.recently_delivered:
confirmed_msgs = self.recently_delivered.pop(promise)
LOG.debug('Thread unblocked - %s just received', confirmed_msgs)
del self.waiting_clients[promise]
promise.exclude_ids(confirmed_msgs)
return promise
def _verify_delivered(self, promise: HaLinkMessagePromise,
timeout_sec: float):
"""
Verify if any message in promise._ids are reported by Motr
as delivered. Calling function should hold the self.lock.
"""
del self.waiting_clients[promise]
if promise not in self.recently_delivered:
raise NotDelivered('None of message tags =' + str(promise) +
' were delivered to Motr within ' +
str(timeout_sec) + ' seconds timeout')
confirmed_msgs = self.recently_delivered.pop(promise)
LOG.log(TRACE, 'Thread unblocked - %s just received', confirmed_msgs)
promise.exclude_ids(confirmed_msgs)