Closing Network transport takes long time

[rhpijnacker]

After a recent Home Assistant update, I noticed that it takes a very long time to perform a reboot (minutes!).
Looking at the log file I noticed that the RFXtrx module is causing this:

2024-03-13 07:34:51.635 WARNING (MainThread) [homeassistant.util.executor] Thread[SyncWorker_29] is still running at shutdown: File "/usr/local/lib/python3.12/threading.py", line 1030, in _bootstrap
    self._bootstrap_inner()
  File "/usr/local/lib/python3.12/threading.py", line 1073, in _bootstrap_inner
    self.run()
  File "/usr/local/lib/python3.12/threading.py", line 1010, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/local/lib/python3.12/concurrent/futures/thread.py", line 92, in _worker
    work_item.run()
  File "/usr/local/lib/python3.12/concurrent/futures/thread.py", line 58, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/usr/src/homeassistant/homeassistant/components/rfxtrx/__init__.py", line 283, in _shutdown_rfxtrx
    rfx_object.close_connection()
  File "/usr/local/lib/python3.12/site-packages/RFXtrx/__init__.py", line 1090, in close_connection
    self._thread.join()
  File "/usr/local/lib/python3.12/threading.py", line 1147, in join
    self._wait_for_tstate_lock()
  File "/usr/local/lib/python3.12/threading.py", line 1167, in _wait_for_tstate_lock
    if lock.acquire(block, timeout):
2024-03-13 07:34:52.634 WARNING (MainThread) [homeassistant.util.executor] Thread[SyncWorker_29] is still running at shutdown: File "/usr/local/lib/python3.12/threading.py", line 1030, in _bootstrap
    self._bootstrap_inner()
  File "/usr/local/lib/python3.12/threading.py", line 1073, in _bootstrap_inner
    self.run()
  File "/usr/local/lib/python3.12/threading.py", line 1010, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/local/lib/python3.12/concurrent/futures/thread.py", line 92, in _worker
    work_item.run()
  File "/usr/local/lib/python3.12/concurrent/futures/thread.py", line 58, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/usr/src/homeassistant/homeassistant/components/rfxtrx/__init__.py", line 283, in _shutdown_rfxtrx
    rfx_object.close_connection()
  File "/usr/local/lib/python3.12/site-packages/RFXtrx/__init__.py", line 1090, in close_connection
    self._thread.join()
  File "/usr/local/lib/python3.12/threading.py", line 1147, in join
    self._wait_for_tstate_lock()
  File "/usr/local/lib/python3.12/threading.py", line 1167, in _wait_for_tstate_lock
    if lock.acquire(block, timeout):

This looks a lot like issue #146 that I previously posted (and fixed).
The rework done in #150 seems to have re-introduced this issue for me.

[rhpijnacker]

FYI: I put back the call to

        self.sock.shutdown(socket.SHUT_RDWR)

inside the HA docker container and now it reboots quickly like expected.