public Chain BuildChain(Chain chain)
{
Dictionary <uint256, BlockHeader> headers = new Dictionary <uint256, BlockHeader>();
HashSet <uint256> inChain = new HashSet <uint256>();
inChain.Add(chain.GetBlock(chain.StartHeight).HashBlock);
foreach (var header in Enumerate(true).Select(b => b.Item.Header))
{
var hash = header.GetHash();
headers.Add(hash, header);
}
List <uint256> toRemove = new List <uint256>();
while (headers.Count != 0)
{
foreach (var header in headers)
{
if (inChain.Contains(header.Value.HashPrevBlock))
{
toRemove.Add(header.Key);
chain.TrySetTip(header.Value);
inChain.Add(header.Key);
}
}
foreach (var item in toRemove)
{
headers.Remove(item);
}
if (toRemove.Count == 0)
{
break;
}
toRemove.Clear();
}
return(chain);
}
