def highest_td_peer(self) -> BaseChainPeer:
peers = tuple(self.connected_nodes.values())
if not peers:
raise NoConnectedPeers()
peers_by_td = groupby(operator.attrgetter('head_td'), peers)
max_td = max(peers_by_td.keys())
return random.choice(peers_by_td[max_td])
def _request_block_parts(
self, headers: List[BlockHeader],
request_func: Callable[[ETHPeer, List[BlockHeader]], None]) -> int:
if not self.peer_pool.peers:
raise NoConnectedPeers()
length = math.ceil(len(headers) / len(self.peer_pool.peers))
batches = list(partition_all(length, headers))
for peer, batch in zip(self.peer_pool.peers, batches):
request_func(cast(ETHPeer, peer), batch)
return len(batches)
def highest_td_peer(self) -> BaseChainPeer:
peers = tuple(self.connected_nodes.values())
if not peers:
raise NoConnectedPeers("No connected peers")
td_getter = excepts(UnknownAPI,
operator.attrgetter('head_info.head_td'),
lambda _: 0)
peers_by_td = groupby(td_getter, peers)
max_td = max(peers_by_td.keys())
return random.choice(peers_by_td[max_td])
def highest_td_peer(self) -> BasePeer:
if not self.connected_nodes:
raise NoConnectedPeers()
peers_by_td = groupby(operator.attrgetter('head_td'), self.peers)
max_td = max(peers_by_td.keys())
return random.choice(peers_by_td[max_td])
def get_peers(self, min_td: int) -> List[BasePeer]:
if not self.connected_nodes:
raise NoConnectedPeers()
return [peer for peer in self.peers if peer.head_td >= min_td]
