py-libp2p/libp2p/tools/constants.py
2019-12-02 16:55:16 +08:00

32 lines
740 B
Python

from typing import NamedTuple
import multiaddr
from libp2p.pubsub import floodsub, gossipsub
# Just a arbitrary large number.
# It is used when calling `MplexStream.read(MAX_READ_LEN)`,
# to avoid `MplexStream.read()`, which blocking reads until EOF.
MAX_READ_LEN = 2 ** 32 - 1
LISTEN_MADDR = multiaddr.Multiaddr("/ip4/127.0.0.1/tcp/0")
FLOODSUB_PROTOCOL_ID = floodsub.PROTOCOL_ID
GOSSIPSUB_PROTOCOL_ID = gossipsub.PROTOCOL_ID
class GossipsubParams(NamedTuple):
degree: int = 10
degree_low: int = 9
degree_high: int = 11
time_to_live: int = 30
gossip_window: int = 3
gossip_history: int = 5
heartbeat_initial_delay: int = 0.1
heartbeat_interval: float = 0.5
GOSSIPSUB_PARAMS = GossipsubParams()