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);
}
TEST(Proposer, OnPrepareReply_Pass)
{
ProposerBuilder ob;
MockProposerBP & oProposerBP = ob.oMockBreakpoint.m_oMockProposerBP;
ob.poProposer->m_oProposerState.m_llProposalID = 100;
ob.poProposer->m_bIsPreparing = true;
ob.poProposer->m_oProposerState.m_sValue = "abc";
PaxosMsg oPaxosMsg;
oPaxosMsg.set_proposalid(100);
//first call
oPaxosMsg.set_preacceptid(95);
oPaxosMsg.set_preacceptnodeid(GetMyNode().GetNodeID());
oPaxosMsg.set_nodeid(GetMyNode().GetNodeID());
oPaxosMsg.set_value("hello paxos");
ob.poProposer->OnPrepareReply(oPaxosMsg);
EXPECT_TRUE(ob.poProposer->m_oProposerState.m_sValue == "hello paxos");
//second call
oPaxosMsg.set_rejectbypromiseid(101);
oPaxosMsg.set_nodeid(2);
ob.poProposer->OnPrepareReply(oPaxosMsg);
//third call
oPaxosMsg.set_rejectbypromiseid(0);
oPaxosMsg.set_preacceptid(98);
oPaxosMsg.set_preacceptnodeid(3);
oPaxosMsg.set_nodeid(3);
oPaxosMsg.set_value("hello world");
EXPECT_CALL(oProposerBP, PreparePass(_)).Times(1);
ob.poProposer->OnPrepareReply(oPaxosMsg);
EXPECT_TRUE(ob.poProposer->m_bCanSkipPrepare == true);
EXPECT_TRUE(ob.poProposer->m_bIsAccepting == true);
EXPECT_TRUE(ob.poProposer->m_oProposerState.m_sValue == "hello world");
}
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");
}