Running into connect issue on docker for windows

[martinscheffler]

Situation:
I run an mqtt broker inside a docker container on windows. Everything works fine except this situation:

• mqtt broker is down
• aio-mqtt connect() is awaiting aio.open_connection() for a few seconds
• mqtt broker comes up, aio.open_connection returns successful
• Client::read() now throws an IncompleteReadError. I think this is something special to Docker on Windows because of weird socket forwarding or something.
• Client::_task_done_callback now calls Client::_disconnect which is OK.
• Client::_disconnect checks variable self._connected. Because Client::connect() is not completed yet, this evaluates to false and does not execute.
• Result is a _read loop that has stopped.

Possible solution:

In Client::connect, move the line that does

self._connected = True
up so that it is done before the _reading_task and the other tasks are started.

[skewty]

I have the same issue on Fedora Linux. I believe it is a calculation algorithm issue in one of the read methods / functions.