public override void NotifyOfNewBlock(Block block, SendBlockPriority priority)
{
if (RequestedAnnounceType == LesAnnounceType.None)
{
return;
}
if (!block.TotalDifficulty.HasValue)
{
throw new InvalidOperationException($"Trying to send a block {block.Hash} with null total difficulty");
}
if (block.TotalDifficulty <= _lastSentBlock.TotalDifficulty)
{
return;
}
AnnounceMessage announceMessage = new AnnounceMessage();
announceMessage.HeadHash = block.Hash;
announceMessage.HeadBlockNo = block.Number;
announceMessage.TotalDifficulty = block.TotalDifficulty.Value;
if (_lastSentBlock == null || block.ParentHash == _lastSentBlock.Hash)
{
announceMessage.ReorgDepth = 0;
}
else
{
BlockHeader firstCommonAncestor = SyncServer.FindLowestCommonAncestor(block.Header, _lastSentBlock);
if (firstCommonAncestor == null)
{
throw new SubprotocolException($"Unable to send announcment to LES peer - No common ancestor found between {block.Header} and {_lastSentBlock}");
}
announceMessage.ReorgDepth = _lastSentBlock.Number - firstCommonAncestor.Number;
}
_lastSentBlock = block.Header;
Send(announceMessage);
}
