private VoteResponse RequestVoteCore(IHost host)
{
PersistentState state = _stateController.PersistentState;
VoteReqeust request = new VoteReqeust
{
CandidateId = Id,
Term = state.CurrentTerm,
LastLogIndex = state.LastLogIndex,
LastLogTerm = state.LastLogTerm
};
return(host.VoteInvoke(request));
}
public VoteResponse VoteInvoke(VoteReqeust reqeust)
{
lock (this)
{
_node.EnsureExistGreaterTermAndChangeRole(reqeust.Term);
if (_node.CurrentRole.Type != RoleType.Follower)
{
return(new VoteResponse()
{
Term = _stateController.PersistentState.CurrentTerm,
VoteGranted = false
});
}
return(((Follower)_node.CurrentRole).GetVote(reqeust));
}
}
public VoteResponse GetVote(VoteReqeust request)
{
VoteResponse response = new VoteResponse();
PersistentState state = _stateController.PersistentState;
if (request.Term < state.CurrentTerm)
{
response.VoteGranted = false;
}
else if ((string.IsNullOrEmpty(state.VotedFor) || state.VotedFor == request.CandidateId) && request.LastLogTerm >= state.LastLogTerm && request.LastLogIndex >= state.LastLogIndex)
{
_stateController.UpdateVoteFor(request.CandidateId);
response.VoteGranted = true;
DebugConsole.WriteLine($"Voting for candidate {request.CandidateId} for term {request.Term}...");
}
response.Term = state.CurrentTerm;
return(response);
}
