//Caller should add to the puller map
internal void StartDownload(GetDataPayload getDataPayload)
{
foreach (var inv in getDataPayload.Inventory)
{
inv.Type = AttachedNode.AddSupportedOptions(inv.Type);
_PendingDownloads.TryAdd(inv.Hash, inv.Hash);
}
AttachedNode.SendMessageAsync(getDataPayload);
}
public void AskBlocks()
{
if (AttachedNode.State != NodeState.HandShaked)
{
return;
}
var pendingTip = AttachedNode.Behaviors.Find <ChainBehavior>().PendingTip;
if (pendingTip == null || pendingTip.Height < AttachedNode.PeerVersion.StartHeight)
{
return;
}
if (_InFlights.Count != 0)
{
return;
}
var currentLocation = _CurrentLocation ?? new BlockLocator()
{
Blocks = { Chain.GetBlock(StartHeight).HashBlock }
};;
var currentBlock = Chain.FindFork(currentLocation);
if (currentBlock.Height < StartHeight)
{
currentBlock = Chain.GetBlock(StartHeight) ?? pendingTip;
}
//Up to date
if (pendingTip.HashBlock == currentBlock.HashBlock)
{
return;
}
var toDownload = pendingTip.EnumerateToGenesis().TakeWhile(b => b.HashBlock != currentBlock.HashBlock).ToArray();
Array.Reverse(toDownload);
var invs = toDownload.Take(10)
.Select(b => new InventoryVector(AttachedNode.AddSupportedOptions(InventoryType.MSG_BLOCK), b.HashBlock))
.Where(b => _InFlights.TryAdd(b.Hash, new Download()))
.ToArray();
if (invs.Length != 0)
{
AttachedNode.SendMessageAsync(new GetDataPayload(invs));
Runtime.Repository.SetIndexProgress(currentLocation);
}
}
internal void StartDownload(uint256 block)
{
if (_Puller._Map.TryAdd(block, this))
{
_PendingDownloads.TryAdd(block, block);
AttachedNode.SendMessageAsync(new GetDataPayload(new InventoryVector(AttachedNode.AddSupportedOptions(InventoryType.MSG_BLOCK), block)));
}
}