Method OnSendLearnValue

src/algorithm/learner.cpp:467–507

}

void Learner :: OnSendLearnValue(const PaxosMsg & oPaxosMsg)
{
    BP->GetLearnerBP()->OnSendLearnValue();

    PLGHead("START Msg.InstanceID %lu Now.InstanceID %lu Msg.ballot_proposalid %lu Msg.ballot_nodeid %lu Msg.ValueSize %zu",
            oPaxosMsg.instanceid(), GetInstanceID(), oPaxosMsg.proposalid(), 
            oPaxosMsg.nodeid(), oPaxosMsg.value().size());

    if (oPaxosMsg.instanceid() > GetInstanceID())
    {
        PLGDebug("[Latest Msg] i can't learn");
        return;
    }

    if (oPaxosMsg.instanceid() < GetInstanceID())
    {
        PLGDebug("[Lag Msg] no need to learn");
    }
    else
    {
        //learn value
        BallotNumber oBallot(oPaxosMsg.proposalid(), oPaxosMsg.proposalnodeid());
        int ret = m_oLearnerState.LearnValue(oPaxosMsg.instanceid(), oBallot, oPaxosMsg.value(), GetLastChecksum());
        if (ret != 0)
        {
            PLGErr("LearnState.LearnValue fail, ret %d", ret);
            return;
        }
        
        PLGHead("END LearnValue OK, proposalid %lu proposalid_nodeid %lu valueLen %zu", 
                oPaxosMsg.proposalid(), oPaxosMsg.nodeid(), oPaxosMsg.value().size());
    }

    if (oPaxosMsg.flag() == PaxosMsgFlagType_SendLearnValue_NeedAck)
    {
        //every time' when receive valid need ack learn value, reset noop timeout.
        Reset_AskforLearn_Noop();

        SendLearnValue_Ack(oPaxosMsg.nodeid());
    }
}

void Learner :: SendLearnValue_Ack(const nodeid_t iSendNodeID)
{