this forever hangs you disconnect (or 2 hours)

selfdrive/athena/athenad.py

@@ -657,10 +657,12 @@ def stat_handler(end_event: threading.Event) -> None:
 def ws_proxy_recv(ws: WebSocket, local_sock: socket.socket, ssock: socket.socket, end_event: threading.Event, global_end_event: threading.Event) -> None:
   while not (end_event.is_set() or global_end_event.is_set()):
     try:
-      data = ws.recv()
+      r = select.select([ws], [], [], 10)
-      if isinstance(data, str):
+      if r[0]:
-        data = data.encode("utf-8")
+        data = ws.recv()
-      local_sock.sendall(data)
+        if isinstance(data, str):
+          data = data.encode("utf-8")
+        local_sock.sendall(data)
     except WebSocketTimeoutException:
       pass
     except Exception:
@@ -670,6 +672,7 @@ def ws_proxy_recv(ws: WebSocket, local_sock: socket.socket, ssock: socket.socket
   cloudlog.debug("athena.ws_proxy_recv closing sockets")
   ssock.close()
   local_sock.close()
+  ws.close()
   cloudlog.debug("athena.ws_proxy_recv done closing sockets")
 
   end_event.set()