Prevent multiple tasks for reconnection (#1369)

* Prevent multiple taks for reconnection

As discussed here.

#1367

In certain scenarios, this library creates multiple reconnection tasks.

A check is added to make sure that reconnection task starts only when

this task is not running.

Signed-off-by: Humayun Ajmal <humayun.ajmal@strikeready.com>

* async client

---------

Signed-off-by: Humayun Ajmal <humayun.ajmal@strikeready.com>
Co-authored-by: Miguel Grinberg <miguel.grinberg@gmail.com>

src/socketio/async_client.py

@@ -581,7 +581,7 @@ async def _handle_eio_disconnect(self):
         self.callbacks = {}
         self._binary_packet = None
         self.sid = None
-        if will_reconnect:
+        if will_reconnect and not self._reconnect_task:
             self._reconnect_task = self.start_background_task(
                 self._handle_reconnect)
 

src/socketio/client.py

@@ -539,7 +539,7 @@ def _handle_eio_disconnect(self):
         self.callbacks = {}
         self._binary_packet = None
         self.sid = None
-        if will_reconnect:
+        if will_reconnect and not self._reconnect_task:
             self._reconnect_task = self.start_background_task(
                 self._handle_reconnect)