diff options
Diffstat (limited to 'netmodel/interfaces/socket/tcp.py')
-rw-r--r-- | netmodel/interfaces/socket/tcp.py | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/netmodel/interfaces/socket/tcp.py b/netmodel/interfaces/socket/tcp.py new file mode 100644 index 00000000..5b886d9a --- /dev/null +++ b/netmodel/interfaces/socket/tcp.py @@ -0,0 +1,86 @@ +#!/usr/bin/env python3 +# -*- coding: utf-8 -*- +# +# Copyright (c) 2017 Cisco and/or its affiliates. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at: +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +import asyncio + +from netmodel.interfaces.socket import ServerProtocol, ClientProtocol +from netmodel.interfaces.socket import SocketClient, SocketServer +from netmodel.network.interface import Interface + +DEFAULT_ADDRESS = '127.0.0.1' +DEFAULT_PORT = 7000 + +class TCPProtocol: + def send_impl(self, data): + msg = data.encode() + self._transport.write(msg) + + # asyncio.Protocol + + def data_received(self, data): + """ + Called when some data is received. + The argument is a bytes object. + """ + msg = data.decode() + self.receive(msg, ingress_interface=self) + +class TCPServerProtocol(TCPProtocol, ServerProtocol, Interface): + __interface__ = 'tcp' + + def __init__(self, *args, **kwargs): + # Note: super() does not call all parents' constructors + Interface.__init__(self, *args, **kwargs) + ServerProtocol.__init__(self) + +class TCPClientProtocol(TCPProtocol, ClientProtocol): + pass + +#------------------------------------------------------------------------------ + +class TCPServerInterface(SocketServer, Interface): + __interface__ = 'tcpserver' + + def __init__(self, *args, **kwargs): + SocketServer.__init__(self) + self._address = kwargs.pop('address', DEFAULT_ADDRESS) + self._port = kwargs.pop('port', DEFAULT_PORT) + Interface.__init__(self, *args, **kwargs) + + def new_protocol(self): + p = TcpServerProtocol(callback = self._callback, hook=self._hook) + self.spawn_interface(p) + return p + + def _create_socket(self): + loop = asyncio.get_event_loop() + return loop.create_server(self.new_protocol, self._address, self._port) + +class TCPClientInterface(SocketClient, Interface): + __interface__ = 'tcpclient' + + def __init__(self, *args, **kwargs): + SocketClient.__init__(self) + self._address = kwargs.pop('address', DEFAULT_ADDRESS) + self._port = kwargs.pop('port', DEFAULT_PORT) + Interface.__init__(self, *args, **kwargs) + + def _create_socket(self): + loop = asyncio.get_event_loop() + protocol = lambda : TCPClientProtocol(self) + return loop.create_connection(protocol, self._address, self._port) |