Python asyncio.AbstractServer() Examples

def __init__(self, env: 'Env', db: LBRYLevelDB, bp: LBRYBlockProcessor, daemon: 'Daemon', mempool: 'MemPool',
                 shutdown_event: asyncio.Event):
        env.max_send = max(350000, env.max_send)
        self.env = env
        self.db = db
        self.bp = bp
        self.daemon = daemon
        self.mempool = mempool
        self.peer_mgr = PeerManager(env, db)
        self.shutdown_event = shutdown_event
        self.logger = util.class_logger(__name__, self.__class__.__name__)
        self.servers: typing.Dict[str, asyncio.AbstractServer] = {}
        self.sessions: typing.Set['SessionBase'] = set()
        self.cur_group = SessionGroup(0)
        self.txs_sent = 0
        self.start_time = time.time()
        self.history_cache = self.bp.history_cache
        self.notified_height: typing.Optional[int] = None
        # Cache some idea of room to avoid recounting on each subscription
        self.subs_room = 0

        self.session_event = Event() 

def __init__(self, node_name: str) -> None:
        self.node_name_ = node_name
        """ Node name, a string. """

        self.creation_ = 0
        """ Creation id used in pid generation. EPMD gives creation id to 
            newly connected nodes. 
        """

        self.in_port_ = None  # type: [None, int]
        self.in_srv_ = None  # type: [None, asyncio.AbstractServer]
        self.epmd_ = EPMDClient()
        self.n_connect_tries_ = 5 

def start_manhole(path: str, banner: str = "", namespace: Optional[Dict[str, Any]] = None,
                        loop: asyncio.AbstractEventLoop = None, whitelist: Set[int] = None,
                        ) -> Tuple[asyncio.AbstractServer, Callable[[], None]]:
    """
    Starts a manhole server on a given UNIX address.

    Args:
        path: The path to create the UNIX socket at.
        banner: The banner to show when clients connect.
        namespace: The globals to provide to connected clients.
        loop: The asyncio event loop to use.
        whitelist: List of user IDs to allow connecting.
    """
    if not SO_PEERCRED:
        raise ValueError("SO_PEERCRED is not supported on this platform")
    loop = loop or asyncio.get_event_loop()
    factory = InterpreterFactory(namespace=namespace, banner=banner,
                                 interpreter_class=AsyncInterpreter, loop=loop,
                                 whitelist=whitelist)
    server = await asyncio.start_unix_server(factory, path=path, loop=loop)
    os.chmod(path, 0o666)

    def stop():
        for client in factory.clients:
            client.close()
        server.close()

    return server, stop 

def start_server(
    self: "ChiaServer", on_connect: OnConnectFunc = None
) -> asyncio.AbstractServer:
    """
    Launches a listening server on host and port specified, to connect to NodeType nodes. On each
    connection, the on_connect asynchronous generator will be called, and responses will be sent.
    Whenever a new TCP connection is made, a new srwt tuple is sent through the pipeline.
    """
    require_cert = self._local_type not in (NodeType.FULL_NODE, NodeType.INTRODUCER)
    ssl_context = ssl_context_for_server(
        self.root_path, self.config, require_cert=require_cert
    )

    server, aiter = await start_server_aiter(
        self._port, host=None, reuse_address=True, ssl=ssl_context
    )

    def add_connection_type(
        srw: Tuple[asyncio.StreamReader, asyncio.StreamWriter]
    ) -> Tuple[asyncio.StreamReader, asyncio.StreamWriter, OnConnectFunc]:
        ssl_object = srw[1].get_extra_info(name="ssl_object")
        peer_cert = ssl_object.getpeercert()
        self.log.info(f"Client authed as {peer_cert}")
        return (srw[0], srw[1], on_connect)

    srwt_aiter = map_aiter(add_connection_type, aiter)

    # Push aiters that come from the server into the pipeline
    if not self._srwt_aiter.is_stopped():
        self._srwt_aiter.push(srwt_aiter)

    self.log.info(f"Server started on port {self._port}")
    return server 

def __init__(self, runner: 'BaseRunner', *,
                 shutdown_timeout: float=60.0,
                 ssl_context: Optional[SSLContext]=None,
                 backlog: int=128) -> None:
        if runner.server is None:
            raise RuntimeError("Call runner.setup() before making a site")
        self._runner = runner
        self._shutdown_timeout = shutdown_timeout
        self._ssl_context = ssl_context
        self._backlog = backlog
        self._server = None  # type: Optional[asyncio.AbstractServer] 

def test_webserver_is_created(event_loop):
    async def dummy_view(request):
        await asyncio.sleep(1, loop=event_loop)
    
    srv = await utils.webserver(event_loop, dummy_view, '127.0.0.1', 8080)
    assert isinstance(srv, asyncio.AbstractServer) 

def __init__(self, configuration: ConnectionConfig, **kwargs):
        """
        Initialize a TCP server connection.

        :param configuration: the configuration object.
        """
        address = cast(str, configuration.config.get("address"))
        port = cast(int, configuration.config.get("port"))
        assert address is not None and port is not None, "address and port must be set!"
        super().__init__(address, port, configuration=configuration, **kwargs)
        self._server = None  # type: Optional[AbstractServer]
        self.connections = {}  # type: Dict[str, Tuple[StreamReader, StreamWriter]]

        self._read_tasks_to_address = dict()  # type: Dict[Future, Address] 

def __init__(
        self,
        handlers: Collection['IServable'],
        *,
        loop: Optional[asyncio.AbstractEventLoop] = None,
        codec: Optional[CodecBase] = None,
        status_details_codec: Optional[StatusDetailsCodecBase] = None,
        config: Optional[Configuration] = None,
    ) -> None:
        """
        :param handlers: list of handlers

        :param loop: (deprecated) asyncio-compatible event loop

        :param codec: instance of a codec to encode and decode messages,
            if omitted ``ProtoCodec`` is used by default

        :param status_details_codec: instance of a status details codec to
            encode error details in a trailing metadata, if omitted
            ``ProtoStatusDetailsCodec`` is used by default
        """
        if loop:
            warnings.warn("The loop argument is deprecated and scheduled "
                          "for removal in grpclib 0.4",
                          DeprecationWarning, stacklevel=2)

        mapping: Dict[str, 'const.Handler'] = {}
        for handler in handlers:
            mapping.update(handler.__mapping__())

        self._mapping = mapping
        self._loop = loop or asyncio.get_event_loop()

        if codec is None:
            codec = ProtoCodec()
            if status_details_codec is None and _googleapis_available():
                status_details_codec = ProtoStatusDetailsCodec()

        self._codec = codec
        self._status_details_codec = status_details_codec

        self._h2_config = h2.config.H2Configuration(
            client_side=False,
            header_encoding='ascii',
            validate_inbound_headers=False,
            validate_outbound_headers=False,
            normalize_inbound_headers=False,
            normalize_outbound_headers=False,
        )

        config = Configuration() if config is None else config
        self._config = config.__for_server__()

        self._server: Optional[asyncio.AbstractServer] = None
        self._handlers: Set[Handler] = set()

        self.__dispatch__ = _DispatchServerEvents()
        _servers.add(self)