func: void qemu_flush_queued_packets(VLANClientState *vc)
  
  {
  
      while (!TAILQ_EMPTY(&vc->vlan->send_queue)) {
  
          VLANPacket *packet;
  
          int ret;
  
  
  
          packet = TAILQ_FIRST(&vc->vlan->send_queue);
  
          TAILQ_REMOVE(&vc->vlan->send_queue, packet, entry);
  
  
  
          ret = qemu_deliver_packet(packet->sender, packet->data, packet->size);
  
          if (ret == 0 && packet->sent_cb != NULL) {
  
              TAILQ_INSERT_HEAD(&vc->vlan->send_queue, packet, entry);
  
              break;
  
          }
  
  
  
          if (packet->sent_cb)
  
              packet->sent_cb(packet->sender, ret);
  
  
  
          qemu_free(packet);
  
      }
  
  }
  