Question

我使用websocket_server来提供单向（服务器到客户端）websocket连接。

我在服务器上有几个线程，它们以给定的时间间隔（while True: ... time.sleep(60)）查询API，然后执行server.send_message()调用来更新客户端。所有这一切都很好。

有时候，没有任何特别的原因，我会崩溃：

Exception in thread Thread-3:
Traceback (most recent call last):
  File "C:\Python35\lib\threading.py", line 914, in _bootstrap_inner
    self.run()
  File "C:\Python35\lib\threading.py", line 862, in run
    self._target(*self._args, **self._kwargs)
  File "D:/Dropbox/dev/domotique/webserver.py", line 266, in calendar
    server.send_message(client, json.dumps({"calendar": events}))
  File "C:\Python35\lib\site-packages\websocket_server\websocket_server.py", line 71, in send_message
    self._unicast_(client, msg)
  File "C:\Python35\lib\site-packages\websocket_server\websocket_server.py", line 119, in _unicast_
    to_client['handler'].send_message(msg)
  File "C:\Python35\lib\site-packages\websocket_server\websocket_server.py", line 194, in send_message
    self.send_text(message)
  File "C:\Python35\lib\site-packages\websocket_server\websocket_server.py", line 240, in send_text
    self.request.send(header + payload)
BrokenPipeError: [WinError 10058] A request to send or receive data was disallowed because the socket had already been shut down in that direction with a previous shutdown call

我的代码中没有关机调用。 还有什么可以关闭websocket？

Answer 1

WebSocket客户端可以要求服务器关闭连接（或直接关闭它）。来自the library's code：

if not b1:
    logger.info("Client closed connection.")
    self.keep_alive = 0
    return
if opcode == CLOSE_CONN:
    logger.info("Client asked to close connection.")
    self.keep_alive = 0
    return

您可以检查self.keep_alive以了解套接字是否仍处于打开状态。

什么可以关闭websocket连接？

1 个答案: