public void Handle(GetFingerTable message)
{
var bitCount = message.Identity.RoutingHash.BitCount;
var entries = FingerTable.CreateEntries(bitCount, message.ForNode.RoutingHash);
var responder = new RequestResponseHandler <Guid>(Node.MessageBus);
Node.MessageBus.Subscribe(responder);
var replyCount = new Reference <int>(0); // ensure all replies share the current count
for (int i = 0; i < bitCount; ++i)
{
var index = i; // Value must be constant in the scope of the reply
responder.Publish(
new FindSuccessorToHash(Node.Identity, entries[i].StartValue, GetNextCorrelation()),
(FindSuccessorToHash.Reply reply) =>
{
entries[index] = new RoutingTableEntry(entries[index].StartValue, reply.Successor);
++replyCount.Value;
if (replyCount == bitCount)
{
var getFingerTableReply = new GetFingerTable.Reply(Node.Identity, message.CorrelationId, entries);
CloseHandlerWithReply(getFingerTableReply, message.Identity, responder);
}
});
}
}
public SuccessorTable(NodeInfo identity, int successorCount) : base(successorCount)
{
Identity = identity;
for (int i = 0; i < Entries.Length; ++i)
{
var finger = identity.RoutingHash;
Entries[i] = new RoutingTableEntry(finger, identity);
}
}
public FingerTable(NodeInfo identity, int tableLength) : base(tableLength)
{
Identity = identity;
var routingHash = identity.RoutingHash;
for (int i = 0; i < tableLength; ++i)
{
var finger = routingHash + routingHash.One() << i;
Entries[i] = new RoutingTableEntry(finger, identity);
}
}
public static RoutingTableEntry[] CreateEntries(int entryCount, ConsistentHash nodeHash)
{
var entries = RoutingTable.CreateEntries(entryCount);
for (int i = 0; i < entryCount; ++i)
{
var finger = nodeHash + nodeHash.One() << i;
entries[i] = new RoutingTableEntry(finger, null);
}
return(entries);
}
