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from __future__ import annotations
import trio
from .task_group import TaskGroup
from .worker_context import WorkerContext
from ..config import Config
from ..events import Event, RawData
from ..typing import AppWrapper
from ..utils import parse_socket_addr
MAX_RECV = 2**16
class UDPServer:
def __init__(
self,
app: AppWrapper,
config: Config,
context: WorkerContext,
socket: trio.socket.socket,
) -> None:
self.app = app
self.config = config
self.context = context
self.socket = trio.socket.from_stdlib_socket(socket)
async def run(
self, task_status: trio._core._run._TaskStatus = trio.TASK_STATUS_IGNORED
) -> None:
from ..protocol.quic import QuicProtocol # h3/Quic is an optional part of Hypercorn
task_status.started()
server = parse_socket_addr(self.socket.family, self.socket.getsockname())
async with TaskGroup() as task_group:
self.protocol = QuicProtocol(
self.app, self.config, self.context, task_group, server, self.protocol_send
)
while not self.context.terminated.is_set() or not self.protocol.idle:
data, address = await self.socket.recvfrom(MAX_RECV)
await self.protocol.handle(RawData(data=data, address=address))
async def protocol_send(self, event: Event) -> None:
if isinstance(event, RawData):
await self.socket.sendto(event.data, event.address)
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