Question

我使用python-socketio构建了一个socket.io客户端：

import socketio

NAMESPACE = '/bballMsg'
URL = 'ws://x.x.x.x:3080?cid=1000000&puid=50000&nickName=PressureTest'


class MyCustomNamespace(socketio.ClientNamespace):
    def on_connect(self):
        print(f'{self.client.sid} is connected')

    def on_connect_error(self):
        print(f'{self.client.sid} is error')

    def on_disconnect(self):
        print(f'{self.client.sid} is disconnected')

    def on_LIVE_DANMAKU_640014_438089(self, data):
        print(data)


if __name__ == '__main__':
    sio = socketio.Client(logger=True, engineio_logger=True)
    sio.register_namespace(MyCustomNamespace(NAMESPACE))
    sio.connect(URL, namespaces=[NAMESPACE])
    sio.emit('subscribe', data={'channel': 'LIVE_DANMAKU_640014_438089'}, namespace=NAMESPACE)
    sio.wait()

但是我发现有两个连接，并且几秒钟后一个已从ESTABLISHED更改为CLOSE_WAIT，然后再也不会释放

COMMAND     PID     USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
python3.7 70194 xxx    5u  IPv4 0x366e9ef075952b47      0t0  TCP y.y.y.y:54183->x.x.x.x:stm_pproc (CLOSE_WAIT)
python3.7 70194 xxx    6u  IPv4 0x366e9ef08c7beb47      0t0  TCP y.y.y.y:54184->x.x.x.x:stm_pproc (ESTABLISHED)

然后我将代码重写为以下内容

import asyncio

import socketio

NAMESPACE = '/bballMsg'
URL = 'ws://x.x.x.x:3080?cid=1000000&puid=50000&nickName=PressureTest'


class MyCustomNamespace(socketio.AsyncClientNamespace):
    def on_connect(self):
        print(f'{self.client.sid} is connected')

    def on_connect_error(self):
        print(f'{self.client.sid} is error')

    def on_disconnect(self):
        print(f'{self.client.sid} is disconnected')

    def on_LIVE_DANMAKU_640014_438089(self, data):
        print(data)


loop = asyncio.get_event_loop()
sio = socketio.AsyncClient(logger=True, engineio_logger=True)
sio.register_namespace(MyCustomNamespace(NAMESPACE))


async def start_server():
    await sio.connect(URL, namespaces=[NAMESPACE])
    await sio.emit('subscribe', data={'channel': 'LIVE_DANMAKU_640014_438089'}, namespace=NAMESPACE)
    await sio.wait()


if __name__ == '__main__':
    loop.run_until_complete(start_server())

我发现只有一个连接，但是发生了新问题，大多数时间在'emit'之后都没有收到回调

为什么连接状态保持为close_wait？

0 个答案: