varun-r-mallya/py-libp2p
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negotiate timeout configurable in application code

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This commit is contained in:
lla-dane
2025-07-01 18:32:57 +05:30
parent fee4208d89
commit a7eb9b5fbd
2 changed files with 22 additions and 6 deletions
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5
libp2p/__init__.py
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@ -84,6 +84,8 @@ DEFAULT_MUXER = "YAMUX"
# Multiplexer options
MUXER_YAMUX = "YAMUX"
MUXER_MPLEX = "MPLEX"
DEFAULT_NEGOTIATE_TIMEOUT = 5
def set_default_muxer(muxer_name: Literal["YAMUX", "MPLEX"]) -> None:
@ -249,6 +251,7 @@ def new_host(
muxer_preference: Literal["YAMUX", "MPLEX"] | None = None,
listen_addrs: Sequence[multiaddr.Multiaddr] | None = None,
enable_mDNS: bool = False,
negotiate_timeout: int = DEFAULT_NEGOTIATE_TIMEOUT,
) -> IHost:
"""
Create a new libp2p host based on the given parameters.
@ -274,6 +277,6 @@ def new_host(
if disc_opt is not None:
return RoutedHost(swarm, disc_opt, enable_mDNS)
return BasicHost(swarm, enable_mDNS)
return BasicHost(network=swarm, negotitate_timeout=negotiate_timeout, enable_mDNS)
__version__ = __version("libp2p")

23
libp2p/host/basic_host.py
View File

@ -71,6 +71,7 @@ if TYPE_CHECKING:
logger = logging.getLogger("libp2p.network.basic_host")
DEFAULT_NEGOTIATE_TIMEOUT = 5
class BasicHost(IHost):
@ -92,10 +93,12 @@ class BasicHost(IHost):
network: INetworkService,
enable_mDNS: bool = False,
default_protocols: Optional["OrderedDict[TProtocol, StreamHandlerFn]"] = None,
negotitate_timeout: int = DEFAULT_NEGOTIATE_TIMEOUT,
) -> None:
self._network = network
self._network.set_stream_handler(self._swarm_stream_handler)
self.peerstore = self._network.peerstore
self.negotiate_timeout = negotitate_timeout
# Protocol muxing
default_protocols = default_protocols or get_default_protocols(self)
self.multiselect = Multiselect(dict(default_protocols.items()))
@ -189,7 +192,10 @@ class BasicHost(IHost):
self.multiselect.add_handler(protocol_id, stream_handler)
async def new_stream(
self, peer_id: ID, protocol_ids: Sequence[TProtocol]
self,
peer_id: ID,
protocol_ids: Sequence[TProtocol],
negotitate_timeout: int = DEFAULT_NEGOTIATE_TIMEOUT,
) -> INetStream:
"""
:param peer_id: peer_id that host is connecting
@ -201,7 +207,9 @@ class BasicHost(IHost):
# Perform protocol muxing to determine protocol to use
try:
selected_protocol = await self.multiselect_client.select_one_of(
list(protocol_ids), MultiselectCommunicator(net_stream)
list(protocol_ids),
MultiselectCommunicator(net_stream),
negotitate_timeout,
)
except MultiselectClientError as error:
logger.debug("fail to open a stream to peer %s, error=%s", peer_id, error)
@ -211,7 +219,12 @@ class BasicHost(IHost):
net_stream.set_protocol(selected_protocol)
return net_stream
async def send_command(self, peer_id: ID, command: str) -> list[str]:
async def send_command(
self,
peer_id: ID,
command: str,
response_timeout: int = DEFAULT_NEGOTIATE_TIMEOUT,
) -> list[str]:
"""
Send a multistream-select command to the specified peer and return
the response.
@ -225,7 +238,7 @@ class BasicHost(IHost):
try:
response = await self.multiselect_client.query_multistream_command(
MultiselectCommunicator(new_stream), command
MultiselectCommunicator(new_stream), command, response_timeout
)
except MultiselectClientError as error:
logger.debug("fail to open a stream to peer %s, error=%s", peer_id, error)
@ -264,7 +277,7 @@ class BasicHost(IHost):
# Perform protocol muxing to determine protocol to use
try:
protocol, handler = await self.multiselect.negotiate(
MultiselectCommunicator(net_stream)
MultiselectCommunicator(net_stream), self.negotiate_timeout
)
except MultiselectError as error:
peer_id = net_stream.muxed_conn.peer_id