75 lines
2.2 KiB
Python
75 lines
2.2 KiB
Python
from abc import ABC, abstractmethod
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from typing import Any, Awaitable, Callable, List, Sequence
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import multiaddr
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from libp2p.network.network_interface import INetwork
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from libp2p.peer.id import ID
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from libp2p.peer.peerinfo import PeerInfo
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from libp2p.network.stream.net_stream_interface import INetStream
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StreamHandlerFn = Callable[[INetStream], Awaitable[None]]
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class IHost(ABC):
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@abstractmethod
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def get_id(self) -> ID:
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"""
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:return: peer_id of host
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"""
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@abstractmethod
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def get_network(self) -> INetwork:
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"""
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:return: network instance of host
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"""
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# FIXME: Replace with correct return type
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@abstractmethod
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def get_mux(self) -> Any:
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"""
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:return: mux instance of host
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"""
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@abstractmethod
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def get_addrs(self) -> List[multiaddr.Multiaddr]:
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"""
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:return: all the multiaddr addresses this host is listening too
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"""
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@abstractmethod
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def set_stream_handler(
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self, protocol_id: str, stream_handler: StreamHandlerFn
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) -> bool:
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"""
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set stream handler for host
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:param protocol_id: protocol id used on stream
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:param stream_handler: a stream handler function
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:return: true if successful
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"""
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# protocol_id can be a list of protocol_ids
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# stream will decide which protocol_id to run on
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@abstractmethod
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async def new_stream(self, peer_id: ID, protocol_ids: Sequence[str]) -> INetStream:
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"""
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:param peer_id: peer_id that host is connecting
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:param protocol_ids: protocol ids that stream can run on
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:return: stream: new stream created
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"""
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@abstractmethod
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async def connect(self, peer_info: PeerInfo) -> None:
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"""
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connect ensures there is a connection between this host and the peer with
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given peer_info.peer_id. connect will absorb the addresses in peer_info into its internal
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peerstore. If there is not an active connection, connect will issue a
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dial, and block until a connection is open, or an error is
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returned.
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:param peer_info: peer_info of the host we want to connect to
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:type peer_info: peer.peerinfo.PeerInfo
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"""
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