void
CClientProxy1_0::resetHeartbeatTimer()
{
// reset the alarm
removeHeartbeatTimer();
addHeartbeatTimer();
}
void RaftConsensus::becomeCandidate() {
std::cout << "RaftState: become candidate" << std::endl;
state_ = StateCandidate;
votes_ = 0;
// 删除心跳定时器
removeHeartbeatTimer();
// 开启选举超时定时器
resetElectionTimer();
++term_; // term + 1
++votes_; // 给自己投票
if (votes_ >= majority_)
becomeLeader();
VoteRequest req;
req.set_term(term_);
req.set_candidateid(id_);
req.set_lastlogterm(0); //TODO: set logger
req.set_lastlogindex(0);
for (auto& kv: peers_) {
auto stub = rpc_stubs_->getStub(kv.first);
if (stub) {
stub->RequesetVoteAsync(
req,
std::bind(&RaftConsensus::handleVoteResponse, this, term_, std::placeholders::_1, std::placeholders::_2),
1000
);
}
}
}
void
CClientProxy1_0::resetOptions()
{
LOG((CLOG_DEBUG1 "send reset options to \"%s\"", getName().c_str()));
CProtocolUtil::writef(getStream(), kMsgCResetOptions);
// reset heart rate and death
resetHeartbeatRate();
removeHeartbeatTimer();
addHeartbeatTimer();
}
void RaftConsensus::becomeFollower(uint64_t term, uint64_t leader) {
std::cout << "RaftState: become follower" << std::endl;
term_ = term;
leaderid_ = leader;
state_ = StateFollower;
vote_for_ = 0;
// 删除心跳超时器
removeHeartbeatTimer();
// 开启选举超时定时器
resetElectionTimer();
}
void
CClientProxy1_0::removeHandlers()
{
// uninstall event handlers
EVENTQUEUE->removeHandler(IStream::getInputReadyEvent(),
getStream()->getEventTarget());
EVENTQUEUE->removeHandler(IStream::getOutputErrorEvent(),
getStream()->getEventTarget());
EVENTQUEUE->removeHandler(IStream::getInputShutdownEvent(),
getStream()->getEventTarget());
EVENTQUEUE->removeHandler(IStream::getOutputShutdownEvent(),
getStream()->getEventTarget());
EVENTQUEUE->removeHandler(CEvent::kTimer, this);
// remove timer
removeHeartbeatTimer();
}
void
CClientProxy1_0::removeHandlers()
{
// uninstall event handlers
m_events->removeHandler(m_events->forIStream().inputReady(),
getStream()->getEventTarget());
m_events->removeHandler(m_events->forIStream().outputError(),
getStream()->getEventTarget());
m_events->removeHandler(m_events->forIStream().inputShutdown(),
getStream()->getEventTarget());
m_events->removeHandler(m_events->forIStream().outputShutdown(),
getStream()->getEventTarget());
m_events->removeHandler(CEvent::kTimer, this);
// remove timer
removeHeartbeatTimer();
}
void
CClientProxy1_0::setOptions(const COptionsList& options)
{
LOG((CLOG_DEBUG1 "send set options to \"%s\" size=%d", getName().c_str(), options.size()));
CProtocolUtil::writef(getStream(), kMsgDSetOptions, &options);
// check options
for (UInt32 i = 0, n = (UInt32)options.size(); i < n; i += 2) {
if (options[i] == kOptionHeartbeat) {
double rate = 1.0e-3 * static_cast<double>(options[i + 1]);
if (rate <= 0.0) {
rate = -1.0;
}
setHeartbeatRate(rate, rate * kHeartBeatsUntilDeath);
removeHeartbeatTimer();
addHeartbeatTimer();
}
}
}
CClientProxy1_3::~CClientProxy1_3()
{
// cannot do this in superclass or our override wouldn't get called
removeHeartbeatTimer();
}