private void RequestCriticalSection()
{
UInt64 seqNumber = IncrementSeqNumber();
Messages.Request request = new Messages.Request(m_configuration.NodeID, seqNumber);
SendBroadcast(request);
m_tokenReceiveTimeout.Start();
}
private void QueryMessage()
{
foreach (var item in m_protocol.MessageQueue.GetConsumingEnumerable())
{
var json = (JObject)JsonConvert.DeserializeObject(item.Msg);
var type = json["type"].ToString();
if (type == "electionOK")
{
Messages.ElectionOk electionOk = JsonConvert.DeserializeObject <Messages.ElectionOk>(item.Msg);
m_election.ElectionOk(electionOk);
}
else if (type == "electionBroadcast")
{
Messages.ElectionBroadcast electionBroadcast = JsonConvert.DeserializeObject <Messages.ElectionBroadcast>(item.Msg);
m_election.ElectionBroadcast(electionBroadcast);
m_elected = false;
}
else if (type == "electBroadcast")
{
Messages.ElectBroadcast electBroadcast = JsonConvert.DeserializeObject <Messages.ElectBroadcast>(item.Msg);
m_election.ElectBroadcast(electBroadcast);
}
else if (m_elected)
{
if (m_elected && type == "request")
{
Messages.Request request = JsonConvert.DeserializeObject <Messages.Request>(item.Msg);
m_suzuki.RequestMessage(request);
}
else if (m_elected && type == "token")
{
Messages.TokenMessage token = JsonConvert.DeserializeObject <Messages.TokenMessage>(item.Msg);
m_suzuki.TokenMessage(token);
}
}
else
{
LogMessage(this, "Ignored " + type + " Waiting for election.");
}
}
}
public void RequestMessage(Messages.Request request)
{
var nodeId = request.senderId;
var lastReqId = m_requestNumbers[nodeId];
m_requestNumbers[nodeId] = Math.Max(lastReqId, request.value.requestNumber);
lock ( m_tokenLock )
{
// We can immediatly send token.
if (m_token != null &&
m_possesedCriticalSection == false &&
m_requestNumbers[nodeId] == m_token.GetSeqNumber(nodeId) + 1)
{
SendToken(nodeId);
}
else
{
// Note: we don't enqueue node here. This happens while releasing critical section.
//m_token.Queue.Enqueue( nodeId );
}
}
}
