Merge "btif_sock_thread: Set thread_id = -1 after join"

  int poll_count;

  poll_slot_t ps[MAX_POLL];

  int psi[MAX_POLL];  // index of poll slot

  volatile pthread_t thread_id;

  pthread_t thread_id;

  btsock_signaled_cb callback;

  btsock_cmd_cb cmd_callback;

  int used;

}

int btsock_thread_exit(int h) {

  if (h < 0 || h >= MAX_THREAD) {

    APPL_TRACE_ERROR("invalid bt thread handle:%d", h);

    APPL_TRACE_ERROR("invalid bt thread slot:%d", h);

    return false;

  }

  if (ts[h].cmd_fdw == -1) {

  OSI_NO_INTR(ret = send(ts[h].cmd_fdw, &cmd, sizeof(cmd), 0));

  if (ret == sizeof(cmd)) {

    if (ts[h].thread_id != -1) {

      pthread_join(ts[h].thread_id, 0);

      ts[h].thread_id = -1;

    }

    free_thread_slot(h);

    return true;

  }

      APPL_TRACE_DEBUG("no data, select ret: %d", ret)

    };

  }

  ts[h].thread_id = -1;

  APPL_TRACE_DEBUG("socket poll thread exiting, h:%d", h);

  return 0;

}