Пример #1
0
    void handleGetNodeInfoResponse(const ServiceCallResult<protocol::GetNodeInfo>& result)
    {
        Entry& entry = getEntry(result.getCallID().server_node_id);

        if (result.isSuccessful())
        {
            /*
             * Updating the uptime here allows to properly handle a corner case where the service response arrives
             * after the device has restarted and published its new NodeStatus (although it's unlikely to happen).
             */
            entry.uptime_sec = result.getResponse().status.uptime_sec;
            entry.request_needed = false;
            listeners_.forEach(NodeInfoRetrievedHandlerCaller(result.getCallID().server_node_id,
                                                              result.getResponse()));
        }
        else
        {
            if (num_attempts_ != UnlimitedRequestAttempts)
            {
                entry.num_attempts_made++;
                if (entry.num_attempts_made >= num_attempts_)
                {
                    entry.request_needed = false;
                    listeners_.forEach(GenericHandlerCaller<NodeID>(&INodeInfoListener::handleNodeInfoUnavailable,
                                                                    result.getCallID().server_node_id));
                }
            }
        }
    }
Пример #2
0
    virtual void handleNodeStatusChange(const NodeStatusChangeEvent& event)
    {
        const bool was_offline = !event.old_status.known ||
                                 (event.old_status.status_code == protocol::NodeStatus::STATUS_OFFLINE);

        const bool offline_now = !event.status.known ||
                                 (event.status.status_code == protocol::NodeStatus::STATUS_OFFLINE);

        if (was_offline || offline_now)
        {
            Entry& entry = getEntry(event.node_id);

            entry.request_needed = !offline_now;
            entry.num_attempts_made = 0;

            UAVCAN_TRACE("NodeInfoRetriever", "Offline status change: node ID %d, request needed: %d",
                         int(event.node_id.get()), int(entry.request_needed));

            if (entry.request_needed)
            {
                startTimerIfNotRunning();
            }
        }

        listeners_.forEach(
            GenericHandlerCaller<const NodeStatusChangeEvent&>(&INodeInfoListener::handleNodeStatusChange, event));
    }
Пример #3
0
    virtual void handleNodeStatusMessage(const ReceivedDataStructure<protocol::NodeStatus>& msg)
    {
        Entry& entry = getEntry(msg.getSrcNodeID());

        if (msg.uptime_sec < entry.uptime_sec)
        {
            entry.request_needed = true;
            entry.num_attempts_made = 0;

            startTimerIfNotRunning();
        }
        entry.uptime_sec = msg.uptime_sec;
        entry.updated_since_last_attempt = true;

        listeners_.forEach(GenericHandlerCaller<const ReceivedDataStructure<protocol::NodeStatus>&>(
            &INodeInfoListener::handleNodeStatusMessage, msg));
    }