private void OnInvMessageReceived(InvPayload payload)
{
UInt256[] hashes = payload.Hashes.Where(p => knownHashes.Add(p) && !sentHashes.Contains(p)).ToArray();
if (hashes.Length == 0)
{
return;
}
switch (payload.Type)
{
case InventoryType.Block:
using (Snapshot snapshot = Blockchain.Singleton.GetSnapshot())
hashes = hashes.Where(p => !snapshot.ContainsBlock(p)).ToArray();
break;
case InventoryType.TX:
using (Snapshot snapshot = Blockchain.Singleton.GetSnapshot())
hashes = hashes.Where(p => !snapshot.ContainsTransaction(p)).ToArray();
break;
}
if (hashes.Length == 0)
{
return;
}
system.TaskManager.Tell(new TaskManager.NewTasks {
Payload = InvPayload.Create(payload.Type, hashes)
}, Context.Parent);
}
internal static void Remove <T>(this HashSet <T> set, FIFOSet <T> other)
where T : IEquatable <T>
{
if (set.Count > other.Count)
{
set.ExceptWith(other);
}
else
{
set.RemoveWhere(u => other.Contains(u));
}
}