py-libp2p/libp2p/pubsub/pubsub_notifee.py
2019-07-31 15:00:12 -07:00

55 lines
1.9 KiB
Python

from typing import TYPE_CHECKING
from multiaddr import Multiaddr
from libp2p.network.network_interface import INetwork
from libp2p.network.notifee_interface import INotifee
from libp2p.stream_muxer.muxed_connection_interface import IMuxedConn
from libp2p.network.stream.net_stream_interface import INetStream
if TYPE_CHECKING:
import asyncio
from libp2p.peer.id import ID
class PubsubNotifee(INotifee):
# pylint: disable=too-many-instance-attributes, cell-var-from-loop, unsubscriptable-object
initiator_peers_queue: "asyncio.Queue[ID]"
def __init__(self, initiator_peers_queue: "asyncio.Queue[ID]") -> None:
"""
:param initiator_peers_queue: queue to add new peers to so that pubsub
can process new peers after we connect to them
"""
self.initiator_peers_queue = initiator_peers_queue
async def opened_stream(self, network: INetwork, stream: INetStream) -> None:
pass
async def closed_stream(self, network: INetwork, stream: INetStream) -> None:
pass
async def connected(self, network: INetwork, conn: IMuxedConn) -> None:
"""
Add peer_id to initiator_peers_queue, so that this peer_id can be used to
create a stream and we only want to have one pubsub stream with each peer.
:param network: network the connection was opened on
:param conn: connection that was opened
"""
# Only add peer_id if we are initiator (otherwise we would end up
# with two pubsub streams between us and the peer)
if conn.initiator:
await self.initiator_peers_queue.put(conn.peer_id)
async def disconnected(self, network: INetwork, conn: IMuxedConn) -> None:
pass
async def listen(self, network: INetwork, multiaddr: Multiaddr) -> None:
pass
async def listen_close(self, network: INetwork, multiaddr: Multiaddr) -> None:
pass