pythonasyncioeventletgeventlong-pollinglow-latencysocket-iosocketiosocketio-serverweb-serverwebsocket
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98 lines
2.4 KiB
98 lines
2.4 KiB
import os
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import tornado.ioloop
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from tornado.options import define, options, parse_command_line
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import tornado.web
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import socketio
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define("port", default=5000, help="run on the given port", type=int)
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define("debug", default=False, help="run in debug mode")
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sio = socketio.AsyncServer(async_mode='tornado')
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async def background_task():
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"""Example of how to send server generated events to clients."""
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count = 0
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while True:
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await sio.sleep(10)
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count += 1
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await sio.emit('my_response', {'data': 'Server generated event'})
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class MainHandler(tornado.web.RequestHandler):
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def get(self):
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self.render("app.html")
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@sio.event
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async def my_event(sid, message):
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await sio.emit('my_response', {'data': message['data']}, room=sid)
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@sio.event
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async def my_broadcast_event(sid, message):
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await sio.emit('my_response', {'data': message['data']})
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@sio.event
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async def join(sid, message):
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await sio.enter_room(sid, message['room'])
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await sio.emit('my_response', {'data': 'Entered room: ' + message['room']},
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room=sid)
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@sio.event
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async def leave(sid, message):
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await sio.leave_room(sid, message['room'])
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await sio.emit('my_response', {'data': 'Left room: ' + message['room']},
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room=sid)
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@sio.event
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async def close_room(sid, message):
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await sio.emit('my_response',
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{'data': 'Room ' + message['room'] + ' is closing.'},
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room=message['room'])
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await sio.close_room(message['room'])
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@sio.event
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async def my_room_event(sid, message):
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await sio.emit('my_response', {'data': message['data']},
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room=message['room'])
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@sio.event
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async def disconnect_request(sid):
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await sio.disconnect(sid)
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@sio.event
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async def connect(sid, environ):
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await sio.emit('my_response', {'data': 'Connected', 'count': 0}, room=sid)
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@sio.event
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def disconnect(sid, reason):
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print('Client disconnected, reason:', reason)
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def main():
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parse_command_line()
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app = tornado.web.Application(
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[
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(r"/", MainHandler),
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(r"/socket.io/", socketio.get_tornado_handler(sio)),
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],
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template_path=os.path.join(os.path.dirname(__file__), "templates"),
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static_path=os.path.join(os.path.dirname(__file__), "static"),
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debug=options.debug,
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)
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app.listen(options.port)
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tornado.ioloop.IOLoop.current().start()
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if __name__ == "__main__":
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main()
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