py-libp2p/libp2p/stream_muxer/abc.py
2019-09-19 16:31:41 +08:00

73 lines
1.6 KiB
Python

from abc import ABC, abstractmethod
from libp2p.io.abc import ReadWriteCloser
from libp2p.peer.id import ID
from libp2p.security.secure_conn_interface import ISecureConn
class IMuxedConn(ABC):
"""
reference: https://github.com/libp2p/go-stream-muxer/blob/master/muxer.go
"""
peer_id: ID
@abstractmethod
def __init__(self, conn: ISecureConn, peer_id: ID) -> None:
"""
create a new muxed connection
:param conn: an instance of secured connection
for new muxed streams
:param peer_id: peer_id of peer the connection is to
"""
@property
@abstractmethod
def initiator(self) -> bool:
pass
@abstractmethod
async def close(self) -> None:
"""
close connection
"""
@abstractmethod
def is_closed(self) -> bool:
"""
check connection is fully closed
:return: true if successful
"""
@abstractmethod
async def open_stream(self) -> "IMuxedStream":
"""
creates a new muxed_stream
:return: a new ``IMuxedStream`` stream
"""
@abstractmethod
async def accept_stream(self) -> "IMuxedStream":
"""
accepts a muxed stream opened by the other end
"""
class IMuxedStream(ReadWriteCloser):
muxed_conn: IMuxedConn
@abstractmethod
async def reset(self) -> None:
"""
closes both ends of the stream
tells this remote side to hang up
"""
@abstractmethod
def set_deadline(self, ttl: int) -> bool:
"""
set deadline for muxed stream
:return: a new stream
"""