public void CopyTo(Peer peer)
{
peer.RpcDue = this.RpcDue;
peer.MatchIndex = this.MatchIndex;
peer.NextIndex = this.NextIndex;
peer.HeartBeartDue = this.HeartBeartDue;
}
public void SendReply(Peer peer, AppendEntriesReply reply)
{
SendMessage(peer, reply);
}
//public void SendRequest(Peer peer, StatusRequest request)
//{
// SendMessage(peer, request);
//}
public void SendReply(Peer peer, VoteReply reply)
{
SendMessage(peer, reply);
}
public void SendRequest(Peer peer, AppendEntriesRequest request)
{
SendMessage(peer, request);
}
public void SendRequest(Peer peer, VoteRequest request)
{
SendMessage(peer, request);
}
private void SendMessage(Peer peer, object message)
{
if ((float)_random.NextDouble() < PACKET_LOSS)
{
//Console.WriteLine("** dropped packet to: {0}, type: {1}", peer.ID, message.GetType().Name);
return;
}
var sm = new SimulationMessage()
{
To = peer.ID,
From = 0,
SendTick = _tick,
RecvTick = _tick + _random.Next(ServerOld.MIN_RPC_LATENCY, ServerOld.MAX_RPC_LATENCY),
Message = message
};
_messages.Add(sm);
//Console.WriteLine("** MESSAGE:{0}, type: {1}, send: {2}, recv: {3}", peer.ID, message.GetType().Name, sm.SendTick, sm.RecvTick);
}
protected void sendRequestVote(IConsensus model, Peer peer)
{
if (_state == ServerState.Candidate && peer.CheckRpcTimeout(model))
{
//Console.WriteLine("{0}: Requesting vote from {1}", _id, peer.ID);
LogIndex lastIndex;
var lastLogIndex = _persistedState.GetLastIndex(out lastIndex);
peer.RpcDue = model.Tick + RPC_TIMEOUT;
model.SendRequest(peer, new VoteRequest()
{
From = _id,
Term = _persistedState.Term,
LastTerm = lastIndex.Term,
LogLength = lastLogIndex
});
}
}
protected void sendAppendEntries(IConsensus model, Peer peer)
{
if (_state == ServerState.Leader &&
(peer.HeartBeartDue <= model.Tick ||
(peer.NextIndex <= _persistedState.Length && peer.RpcDue <= model.Tick)))
{
var prevIndex = peer.NextIndex - 1;
var lastIndex = Math.Min(prevIndex + BATCH_SIZE, _persistedState.Length);
if (peer.MatchIndex + 1 < peer.NextIndex)
lastIndex = prevIndex;
var entries = _persistedState.GetEntries(prevIndex, lastIndex);
if (entries != null && entries.Length > 0)
Console.WriteLine("{0}: Send AppendEnties[{1}-{2}] to {3}", _id, prevIndex, lastIndex, peer.ID);
peer.RpcDue = model.Tick + RPC_TIMEOUT;
peer.HeartBeartDue = model.Tick + (ELECTION_TIMEOUT / 2);
model.SendRequest(peer, new AppendEntriesRequest()
{
From = _id,
Term = _persistedState.Term,
PrevIndex = prevIndex,
PrevTerm = _persistedState.GetTerm(prevIndex),
Entries = entries,
CommitIndex = Math.Min(_commitIndex, lastIndex)
});
}
}
protected void sendAddServer(IConsensus model, Peer peer)
{
if (_state == ServerState.Adding)
{
}
}
