private void Check(PeerConnection peer, SyncBlockChainMessage message)
{
List <BlockId> ids = message.Ids;
if (ids.IsNullOrEmpty())
{
throw new P2pException(
P2pException.ErrorType.BAD_MESSAGE, "SyncBlockChain blockIds is empty");
}
BlockId first_id = ids.First();
if (!Manager.Instance.NetDelegate.ContainBlockInMainChain(first_id))
{
throw new P2pException(
P2pException.ErrorType.BAD_MESSAGE, "No first block:" + first_id.GetString());
}
long head_num = Manager.Instance.NetDelegate.HeadBlockId.Num;
if (first_id.Num > head_num)
{
throw new P2pException(
P2pException.ErrorType.BAD_MESSAGE,
"First blockNum:" + first_id.Num + " gt my head BlockNum:" + head_num);
}
BlockId last_sync_id = peer.LastSyncBlockId;
long last_num = ids[(ids.Count - 1)].Num;
if (last_sync_id != null &&
last_sync_id.Num > last_num)
{
throw new P2pException(
P2pException.ErrorType.BAD_MESSAGE,
"lastSyncNum:" + last_sync_id.Num + " gt lastNum:" + last_num);
}
}
public void ProcessMessage(PeerConnection peer, Messages.MineralMessage message)
{
SyncBlockChainMessage sync_message = (SyncBlockChainMessage)message;
Check(peer, sync_message);
long remain_num = 0;
List <BlockId> ids = GetLostBlockIds(sync_message.Ids);
if (ids.Count == 1)
{
peer.IsNeedSyncUs = false;
}
else
{
peer.IsNeedSyncUs = true;
remain_num = Manager.Instance.NetDelegate.HeadBlockId.Num - ids.Last().Num;
}
peer.LastSyncBlockId = ids.Last();
peer.RemainNum = remain_num;
peer.SendMessage(new ChainInventoryMessage(ids, remain_num));
}
