42 lines
1.3 KiB
Python
42 lines
1.3 KiB
Python
from typing import Awaitable, Callable
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from libp2p.host.host_interface import IHost
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from libp2p.network.stream.net_stream_interface import INetStream
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from libp2p.network.swarm import Swarm
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from libp2p.peer.peerinfo import info_from_p2p_addr
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from .constants import MAX_READ_LEN
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async def connect_swarm(swarm_0: Swarm, swarm_1: Swarm) -> None:
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peer_id = swarm_1.get_peer_id()
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addrs = tuple(
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addr
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for transport in swarm_1.listeners.values()
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for addr in transport.get_addrs()
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)
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swarm_0.peerstore.add_addrs(peer_id, addrs, 10000)
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await swarm_0.dial_peer(peer_id)
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assert swarm_0.get_peer_id() in swarm_1.connections
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assert swarm_1.get_peer_id() in swarm_0.connections
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async def connect(node1: IHost, node2: IHost) -> None:
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"""Connect node1 to node2."""
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addr = node2.get_addrs()[0]
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info = info_from_p2p_addr(addr)
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await node1.connect(info)
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def create_echo_stream_handler(
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ack_prefix: str
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) -> Callable[[INetStream], Awaitable[None]]:
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async def echo_stream_handler(stream: INetStream) -> None:
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while True:
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read_string = (await stream.read(MAX_READ_LEN)).decode()
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resp = ack_prefix + read_string
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await stream.write(resp.encode())
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return echo_stream_handler
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