py-libp2p/libp2p/network/stream/net_stream_interface.py
2019-08-16 11:03:16 +08:00

45 lines
1.0 KiB
Python

from abc import ABC, abstractmethod
from libp2p.stream_muxer.abc import IMuxedConn
from libp2p.typing import TProtocol
class INetStream(ABC):
mplex_conn: IMuxedConn
@abstractmethod
def get_protocol(self) -> TProtocol:
"""
:return: protocol id that stream runs on
"""
@abstractmethod
def set_protocol(self, protocol_id: TProtocol) -> bool:
"""
:param protocol_id: protocol id that stream runs on
:return: true if successful
"""
@abstractmethod
async def read(self, n: int = -1) -> bytes:
"""
reads from the underlying muxed_stream
:param n: number of bytes to read
:return: bytes of input
"""
@abstractmethod
async def write(self, data: bytes) -> int:
"""
write to the underlying muxed_stream
:return: number of bytes written
"""
@abstractmethod
async def close(self) -> bool:
"""
close the underlying muxed stream
:return: true if successful
"""