int Learner :: SendLearnValue(
const nodeid_t iSendNodeID,
const uint64_t llLearnInstanceID,
const BallotNumber & oLearnedBallot,
const std::string & sLearnedValue,
const uint32_t iChecksum,
const bool bNeedAck)
{
BP->GetLearnerBP()->SendLearnValue();
PaxosMsg oPaxosMsg;
oPaxosMsg.set_msgtype(MsgType_PaxosLearner_SendLearnValue);
oPaxosMsg.set_instanceid(llLearnInstanceID);
oPaxosMsg.set_nodeid(m_poConfig->GetMyNodeID());
oPaxosMsg.set_proposalnodeid(oLearnedBallot.m_llNodeID);
oPaxosMsg.set_proposalid(oLearnedBallot.m_llProposalID);
oPaxosMsg.set_value(sLearnedValue);
oPaxosMsg.set_lastchecksum(iChecksum);
if (bNeedAck)
{
oPaxosMsg.set_flag(PaxosMsgFlagType_SendLearnValue_NeedAck);
}
return SendMessage(iSendNodeID, oPaxosMsg, Message_SendType_TCP);
}
void Proposer :: Accept()
{
PLGHead("START ProposalID %lu ValueSize %zu ValueLen %zu",
m_oProposerState.GetProposalID(), m_oProposerState.GetValue().size(), m_oProposerState.GetValue().size());
BP->GetProposerBP()->Accept();
m_oTimeStat.Point();
ExitPrepare();
m_bIsAccepting = true;
PaxosMsg oPaxosMsg;
oPaxosMsg.set_msgtype(MsgType_PaxosAccept);
oPaxosMsg.set_instanceid(GetInstanceID());
oPaxosMsg.set_nodeid(m_poConfig->GetMyNodeID());
oPaxosMsg.set_proposalid(m_oProposerState.GetProposalID());
oPaxosMsg.set_value(m_oProposerState.GetValue());
oPaxosMsg.set_lastchecksum(GetLastChecksum());
m_oMsgCounter.StartNewRound();
AddAcceptTimer();
PLGHead("END");
BroadcastMessage(oPaxosMsg, BroadcastMessage_Type_RunSelf_Final);
}
void Learner :: ProposerSendSuccess(
const uint64_t llLearnInstanceID,
const uint64_t llProposalID)
{
BP->GetLearnerBP()->ProposerSendSuccess();
PaxosMsg oPaxosMsg;
oPaxosMsg.set_msgtype(MsgType_PaxosLearner_ProposerSendSuccess);
oPaxosMsg.set_instanceid(llLearnInstanceID);
oPaxosMsg.set_nodeid(m_poConfig->GetMyNodeID());
oPaxosMsg.set_proposalid(llProposalID);
oPaxosMsg.set_lastchecksum(GetLastChecksum());
//run self first
BroadcastMessage(oPaxosMsg, BroadcastMessage_Type_RunSelf_First);
}
void Learner :: TransmitToFollower()
{
if (m_poConfig->GetMyFollowerCount() == 0)
{
return;
}
PaxosMsg oPaxosMsg;
oPaxosMsg.set_msgtype(MsgType_PaxosLearner_SendLearnValue);
oPaxosMsg.set_instanceid(GetInstanceID());
oPaxosMsg.set_nodeid(m_poConfig->GetMyNodeID());
oPaxosMsg.set_proposalnodeid(m_poAcceptor->GetAcceptorState()->GetAcceptedBallot().m_llNodeID);
oPaxosMsg.set_proposalid(m_poAcceptor->GetAcceptorState()->GetAcceptedBallot().m_llProposalID);
oPaxosMsg.set_value(m_poAcceptor->GetAcceptorState()->GetAcceptedValue());
oPaxosMsg.set_lastchecksum(GetLastChecksum());
BroadcastMessageToFollower(oPaxosMsg, Message_SendType_TCP);
PLGHead("ok");
}