def process_view_change_message(self, msg: ViewChange, frm: str):
result = self._validate(msg, frm)
if result != PROCESS:
return result, None
self._logger.info("{} processing {} from {}".format(self, msg, frm))
self.view_change_votes.add_view_change(msg, frm)
vca = ViewChangeAck(viewNo=msg.viewNo,
name=getNodeName(frm),
digest=view_change_digest(msg))
self.view_change_votes.add_view_change_ack(
vca, getNodeName(self._data.name))
if self._data.is_primary:
self._send_new_view_if_needed()
return PROCESS, None
primary_node_name = getNodeName(self._data.primary_name)
self._logger.info("{} sending {}".format(self, vca))
self._network.send(vca, [primary_node_name])
self._finish_view_change_if_needed()
return PROCESS, None
def process_view_change_message(self, msg: ViewChange, frm: str):
result = self._validate(msg, frm)
if result == STASH_WAITING_VIEW_CHANGE:
self._stashed_vc_msgs.setdefault(msg.viewNo, 0)
self._stashed_vc_msgs[msg.viewNo] += 1
if self._data.quorums.view_change.is_reached(self._stashed_vc_msgs[msg.viewNo]) and \
not self._data.waiting_for_new_view:
self._bus.send(StartViewChange(msg.viewNo))
if result != PROCESS:
return result, None
self._logger.info("{} processing {} from {}".format(self, msg, frm))
self.view_change_votes.add_view_change(msg, frm)
vca = ViewChangeAck(viewNo=msg.viewNo,
name=getNodeName(frm),
digest=view_change_digest(msg))
self.view_change_votes.add_view_change_ack(
vca, getNodeName(self._data.name))
if self._data.is_primary:
self._send_new_view_if_needed()
return PROCESS, None
primary_node_name = getNodeName(self._data.primary_name)
self._logger.info("{} sending {}".format(self, vca))
self._network.send(vca, [primary_node_name])
self._finish_view_change_if_needed()
return PROCESS, None
def process_view_change_message(self, msg: ViewChange, frm: str):
# TODO: Validation
vca = ViewChangeAck(viewNo=msg.viewNo,
name=frm,
digest='digest_of_view_change_message')
self._network.send(vca, self._data.primary_name)
def _view_change_acks(vc, vc_frm, primary, count):
digest = view_change_digest(vc)
non_senders = [
name for name in validators if name not in [vc_frm, primary]
]
ack_frms = random.sample(non_senders, count)
return [(ViewChangeAck(viewNo=vc.viewNo, name=vc_frm,
digest=digest), ack_frm)
for ack_frm in ack_frms]
def process_view_change_message(self, msg: ViewChange, frm: str):
# TODO: Validation
# TODO: Probably we should stash messages from future view instead?
if not self._is_primary(msg.viewNo):
vca = ViewChangeAck(viewNo=msg.viewNo,
name=frm,
digest=self._view_change_digest(msg))
self._network.send(vca, self._data.primary_name)
def process_view_change_message(self, msg: ViewChange, frm: str):
result = self._validate(msg, frm)
if result != PROCESS:
return result
self._votes.add_view_change(msg, frm)
if self._data.is_primary:
self._send_new_view_if_needed()
return
vca = ViewChangeAck(viewNo=msg.viewNo,
name=frm,
digest=view_change_digest(msg))
self._network.send(vca, self._data.primary_name)
self._finish_view_change_if_needed()
def create_view_change_acks(vc, vc_frm, senders):
digest = view_change_digest(vc)
senders = [name for name in senders if name != vc_frm]
return [(ViewChangeAck(viewNo=vc.viewNo, name=vc_frm,
digest=digest), ack_frm) for ack_frm in senders]