public long GetBlockTime(BlockId id)
{
try
{
return(Manager.Instance.DBManager.GetBlockById(id).Timestamp);
}
catch (ArgumentException)
{
throw new P2pException(P2pException.ErrorType.DB_ITEM_NOT_FOUND, id.GetString());
}
catch (ItemNotFoundException)
{
throw new P2pException(P2pException.ErrorType.DB_ITEM_NOT_FOUND, id.GetString());
}
}
public void ProcessMessage(PeerConnection peer, MineralMessage message)
{
BlockMessage block_message = (BlockMessage)message;
Check(peer, block_message);
BlockId block_id = block_message.Block.Id;
Item item = new Item(block_id, InventoryType.Block);
if (peer.SyncBlockRequest.ContainsKey(block_id))
{
peer.SyncBlockRequest.TryRemove(block_id, out _);
Manager.Instance.SyncService.ProcessBlock(peer, block_message);
}
else
{
peer.InventoryRequest.TryGetValue(item, out long ms);
Logger.Info(
string.Format("Receive block {0} from {1}, cost {2}ms",
block_id.GetString(),
peer.Address,
Helper.CurrentTimeMillis() - ms));
peer.InventoryRequest.TryRemove(item, out _);
ProcessBlock(peer, block_message.Block);
}
}
public List <BlockId> GetBlockChainHashesOnFork(BlockId fork_hash)
{
try
{
return(Manager.Instance.DBManager.GetBlockChainHashesOnFork(fork_hash));
}
catch (NonCommonBlockException e)
{
throw new P2pException(Exception.P2pException.ErrorType.HARD_FORKED, fork_hash.GetString(), e);
}
}
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);
}
}
private List <BlockId> GetBlockChainSummary(PeerConnection peer)
{
BlockId begin_id = peer.BlockBothHave;
List <BlockId> ids = new List <BlockId>(peer.SyncBlockFetch);
List <BlockId> forks = new List <BlockId>();
List <BlockId> summary = new List <BlockId>();
long sync_begin = Manager.Instance.NetDelegate.SyncBeginNumber;
long low = sync_begin < 0 ? 0 : sync_begin;
long hight_no_fork = 0;
long high = 0;
Logger.Refactoring("sync_begin : " + sync_begin);
if (begin_id.Num == 0)
{
hight_no_fork = high = Manager.Instance.NetDelegate.HeadBlockId.Num;
}
else
{
if (Manager.Instance.NetDelegate.ContainBlockInMainChain(begin_id))
{
hight_no_fork = high = begin_id.Num;
}
else
{
forks = Manager.Instance.NetDelegate.GetBlockChainHashesOnFork(begin_id);
if (forks.IsNullOrEmpty())
{
throw new P2pException(
P2pException.ErrorType.SYNC_FAILED, "can't find blockId : " + begin_id.GetString());
}
hight_no_fork = forks.LastOrDefault().Num;
forks.RemoveAt(forks.Count);
forks.Reverse();
high = hight_no_fork + forks.Count;
}
}
if (low > hight_no_fork)
{
throw new P2pException(
P2pException.ErrorType.SYNC_FAILED, "low: " + low + " gt highNoFork: " + hight_no_fork);
}
long real_high = high + ids.Count;
Logger.Info(
string.Format("Get block chain summary, low: {0}, highNoFork: {1}, high: {2}, realHigh: {3}",
low,
hight_no_fork,
high,
real_high));
while (low <= real_high)
{
if (low <= hight_no_fork)
{
summary.Add(Manager.Instance.NetDelegate.GetBlockIdByNum(low));
}
else if (low <= high)
{
summary.Add(forks[(int)(low - hight_no_fork - 1)]);
}
else
{
summary.Add(ids[(int)(low - high - 1)]);
}
low += (real_high - low + 2) / 2;
}
return(summary);
}