message: http: Unlisten sockets after all workers quit
  This (almost) move only ensures the event base loop doesn't exit before
  HTTP worker threads exit. This way events registered by HTTP workers are
  processed and not discarded.
diff: @@ -443,10 +443,6 @@ void InterruptHTTPServer()
  {
  LogPrint(BCLog::HTTP, "Interrupting HTTP server\n");
  if (eventHTTP) {
  - // Unlisten sockets
  - for (evhttp_bound_socket *socket : boundSockets) {
  - evhttp_del_accept_socket(eventHTTP, socket);
  - }
  // Reject requests on current connections
  evhttp_set_gencb(eventHTTP, http_reject_request_cb, nullptr);
  }
  @@ -466,6 +462,12 @@ void StopHTTPServer()
  delete workQueue;
  workQueue = nullptr;
  }
  + // Unlisten sockets, these are what make the event loop running, which means
  + // that after this and all connections are closed the event loop will quit.
  + for (evhttp_bound_socket *socket : boundSockets) {
  + evhttp_del_accept_socket(eventHTTP, socket);
  + }
  + boundSockets.clear();
  if (eventBase) {
  LogPrint(BCLog::HTTP, "Waiting for HTTP event thread to exit\n");
  // Exit the event loop as soon as there are no active events.
  