void processMsg(const ReceivedDataStructure<protocol::GlobalTimeSync>& msg)
{
const MonotonicDuration since_prev_msg = msg.getMonotonicTimestamp() - prev_ts_mono_;
UAVCAN_ASSERT(!since_prev_msg.isNegative());
const bool needs_init = !master_nid_.isValid() || prev_ts_mono_.isZero();
const bool switch_master = msg.getSrcNodeID() < master_nid_;
// TODO: Make configurable
const bool pub_timeout = since_prev_msg.toMSec() > protocol::GlobalTimeSync::RECOMMENDED_BROADCASTER_TIMEOUT_MS;
if (switch_master || pub_timeout || needs_init)
{
UAVCAN_TRACE("GlobalTimeSyncSlave", "Force update: needs_init=%i switch_master=%i pub_timeout=%i",
int(needs_init), int(switch_master), int(pub_timeout));
updateFromMsg(msg);
}
else if (msg.getIfaceIndex() == prev_iface_index_ && msg.getSrcNodeID() == master_nid_)
{
if (state_ == Adjust)
{
const bool msg_invalid = msg.previous_transmission_timestamp_usec == 0;
const bool wrong_tid = prev_tid_.computeForwardDistance(msg.getTransferID()) != 1;
const bool wrong_timing = since_prev_msg.toMSec() > protocol::GlobalTimeSync::MAX_BROADCASTING_PERIOD_MS;
if (msg_invalid || wrong_tid || wrong_timing)
{
UAVCAN_TRACE("GlobalTimeSyncSlave",
"Adjustment skipped: msg_invalid=%i wrong_tid=%i wrong_timing=%i",
int(msg_invalid), int(wrong_tid), int(wrong_timing));
state_ = Update;
}
}
if (state_ == Adjust)
{
adjustFromMsg(msg);
}
else
{
updateFromMsg(msg);
}
}
else
{
UAVCAN_TRACE("GlobalTimeSyncSlave", "Ignored: snid=%i iface=%i",
int(msg.getSrcNodeID().get()), int(msg.getIfaceIndex()));
}
}
static void handleMessage(Msg_t* msg) {
GradientMsg_t* gradientMsg = ((GradientMsg_t*) msg->message);
updateFromMsg(gradientMsg);
}
