public static void Q2P_McBlockHash_Handle(Session session, int opcode, object msg)
{
Q2P_McBlockHash q2q_McBlockHash = msg as Q2P_McBlockHash;
Block mcbkl = BlockChainHelper.GetMcBlock(q2q_McBlockHash.height);
var cons = Entity.Root.GetComponent <Consensus>();
if (mcbkl == null && cons.transferHeight + 3 >= q2q_McBlockHash.height)
{
// 取最新高度
var chain1 = BlockChainHelper.GetBlockChain(cons.transferHeight);
while (chain1 != null)
{
if (q2q_McBlockHash.height == chain1.height)
{
mcbkl = chain1.GetMcBlock();
break;
}
chain1 = chain1.GetMcBlockNext();
}
}
R2P_McBlockHash r2p_McBlockHash = new R2P_McBlockHash()
{
hash = mcbkl != null ? mcbkl.hash : ""
};
if (r2p_McBlockHash.hash == "")
{
r2p_McBlockHash.hash = "";
}
session.Reply(q2q_McBlockHash, r2p_McBlockHash);
}
// 获取最新高度MC块
public Block GetLastMcBlock()
{
var levelDBStore = Entity.Root.GetComponent <LevelDBStore>();
// 取最新高度
long.TryParse(levelDBStore.Get("UndoHeight"), out long transferHeight);
var chain1 = BlockChainHelper.GetBlockChain(transferHeight);
var chain2 = chain1.GetMcBlockNext();
while (chain2 != null)
{
chain1 = chain2;
if (chain1.height >= transferHeight + 10)
{
chain2 = null;
}
else
{
chain2 = chain1.GetMcBlockNext();
}
}
if (DelBlockWithHeightTime.IsPassSet())
{
blockMgr.DelBlockWithHeight(consensus, chain1.height);
}
Block blk1 = chain1.GetMcBlock();
// 2F1
double t_2max = consensus.GetRuleCount(blk1.height + 1);
List <Block> blks = blockMgr.GetBlock(blk1.height + 1);
blks = BlockChainHelper.GetRuleBlk(consensus, blks, chain1.hash);
if (blks.Count >= BlockChainHelper.Get2F1(t_2max))
{
chain2 = BlockChainHelper.GetMcBlockNextNotBeLink(chain1);
if (chain2 != null)
{
var blk2 = chain2.GetMcBlock();
double t_1max = consensus.GetRuleCount(blk2.height - 1);
if (blk2.linksblk.Count >= BlockChainHelper.Get2F1(t_1max))
{
return(blk2);
}
}
}
// Auxiliary Address
var blkAuxiliary = blks.Find((x) => { return(x.Address == consensus.auxiliaryAddress); });
//if (blkAuxiliary != null && blkAuxiliary.Address == consensus.auxiliaryAddress && blks.Count >= Math.Min(2, consensus.GetRuleCount(blk1.height+1)) )
if (blkAuxiliary != null && blkAuxiliary.Address == consensus.auxiliaryAddress && blks.Count >= Math.Max(2, (BlockChainHelper.Get2F1(t_2max) / 2)))
{
return(blkAuxiliary);
}
return(blk1);
}
// 获取最新高度MC块
public Block GetLastMcBlock()
{
var levelDBStore = Entity.Root.GetComponent <LevelDBStore>();
// 取最新高度 去TopBlock
long.TryParse(levelDBStore.Get("UndoHeight"), out long transferHeight);
var chain1 = BlockChainHelper.GetBlockChain(transferHeight);
var chain2 = chain1.GetMcBlockNext();
while (chain2 != null)
{
chain1 = chain2;
chain2 = chain2.GetMcBlockNext();
}
blockMgr.DelBlockWithWeight(consensus, chain1.hash, chain1.height);
Block blk1 = chain1.GetMcBlock();
// 2F1
float timestamp = TimeHelper.NowSeconds();
double t_2max = consensus.GetRuleCount(blk1.height + 1);
List <Block> blks = blockMgr.GetBlock(blk1.height + 1);
blks = BlockChainHelper.GetRuleBlk(consensus, blks, chain1.hash);
if (blks.Count >= BlockChainHelper.Get2F1(t_2max))
{
chain2 = BlockChainHelper.GetMcBlockNextNotBeLink(chain1, timestamp, pooltime);
if (chain2 != null)
{
var blk2 = chain2.GetMcBlock();
double t_1max = consensus.GetRuleCount(blk2.height - 1);
if (blk2.linksblk.Count >= BlockChainHelper.Get2F1(t_1max))
{
return(blk2);
}
}
}
// Super Address
var blkSuper = blks.Find((x) => { return(x.Address == consensus.superAddress); });
//if (blkSuper != null && blkSuper.Address == consensus.superAddress && blks.Count >= Math.Min(2, consensus.GetRuleCount(blk1.height+1)) )
if (blkSuper != null && blkSuper.Address == consensus.superAddress && blks.Count >= Math.Max(2, (BlockChainHelper.Get2F1(t_2max) / 2)))
{
return(blkSuper);
}
return(blk1);
}
// 解决分叉链
public BlockChain ApplyBlockChainMost()
{
long.TryParse(levelDBStore.Get("UndoHeight"), out transferHeight);
var chain1 = BlockChainHelper.GetBlockChain(transferHeight);
var chain2 = BlockChainHelper.FindtChainMost(chain1, blockMgr, this);
if (chain2 != null)
{
List <BlockChain> list = new List <BlockChain>();
var chainStart = chain2;
var chainEnd = chain1;
while (chainStart.height != chainEnd.height)
{
list.Insert(0, chainStart);
var blk = chainStart.GetMcBlock();
chainStart = new BlockChain()
{
hash = blk.prehash, height = blk.height - 1
};
}
if (list.Count >= 2)
{
if (ApplyHeight(list[0]))
{
return(list[0]);
}
}
return(null);
}
else
if (chain1 != null)
{
// 应用账本到T-1周期
chain1 = chain1.GetMcBlockNext(blockMgr, this);
chain2 = chain1 == null ? null : chain1.GetMcBlockNext(blockMgr, this);
if (chain1 != null && chain2 != null)
{
if (ApplyHeight(chain1))
{
return(chain1);
}
}
}
return(null);
}
public void ApplyBlockChainOld()
{
// 应用账本到T-1周期
long.TryParse(levelDBStore.Get("UndoHeight"), out transferHeight);
var before = transferHeight;
var chain1 = BlockChainHelper.GetBlockChain(transferHeight).GetMcBlockNext(blockMgr, this);
var chain2 = chain1 == null ? null : chain1.GetMcBlockNext(blockMgr, this);
while (chain1 != null && chain2 != null)
{
if (!ApplyHeight(chain1))
{
break;
}
//// 可能会造成找不到块的BUG
//var mcblk = chain1.GetMcBlock();
//var blks = blockMgr.GetBlock(mcblk.height - 1);
//if (blks.Count > mcblk.linksblk.Count)
//{
// for (int ii = blks.Count - 1; ii >= 0; ii--)
// {
// if (mcblk.linksblk.Find((x) => { return x == blks[ii].hash; }) != blks[ii].hash)
// {
// var temp = BlockChainHelper.GetBlockChain(blks[ii].height-1);
// if(temp.hash!= blks[ii].prehash ) {
// blockMgr.DelBlock(blks[ii].hash);
// }
// }
// }
//}
chain1 = chain2;
chain2 = chain2.GetMcBlockNext(blockMgr, this);
if (before != transferHeight && chain1 != null && chain1.height % 100 == 0)
{
Log.Debug($"ApplyHeight {chain1.height}");
}
}
long.TryParse(levelDBStore.Get("UndoHeight"), out transferHeight);
if (before != transferHeight)
{
Log.Debug($"ApplyHeight {before} to {transferHeight}");
}
}
async Task <bool> SyncHeight(Block otherMcBlk, string ipEndPoint)
{
if (transferHeight >= otherMcBlk.height)
{
return(true);
}
long.TryParse(levelDBStore.Get("Snap___2F1Height"), out long l2F1Height);
l2F1Height = Math.Max(1, l2F1Height);
string hash2F1 = await QueryMcBlockHash(l2F1Height, ipEndPoint);
BlockChain chain2F1 = BlockChainHelper.GetBlockChain(l2F1Height);
if (chain2F1 != null && chain2F1.hash != hash2F1)
{
if (bifurcatedReport == "")
{
bifurcatedReport = $"find a bifurcated chain. height: {otherMcBlk.height} address: {otherMcBlk.Address} , rules count: {otherMcBlk.linksblk.Count}";
}
return(true);
}
// 接收广播过来的主块
// 检查链是否一致，不一致表示前一高度有数据缺失
// 获取对方此高度主块linksblk列表,对方非主块的linksblk列表忽略不用拉取
// 没有的块逐个拉取,校验数据是否正确,添加到数据库
// 拉取到的块重复此过程
// UndoTransfers到拉去到的块高度 , 有新块添加需要重新判断主块把漏掉的账本应用
// GetMcBlock 重新去主块 ， ApplyTransfers 应用账本
long syncHeight = Math.Max(otherMcBlk.height - 1, transferHeight);
long currHeight = Math.Min(otherMcBlk.height - 1, transferHeight);
for (long jj = currHeight; jj > l2F1Height; jj--)
{
currHeight = jj;
BlockChain chain = BlockChainHelper.GetBlockChain(jj);
string hash = await QueryMcBlockHash(jj, ipEndPoint);
if (hash != "" && (chain == null || chain.hash != hash))
{
continue;
}
break;
}
//Log.Info($"SyncHeight: {currHeight} to {syncHeight}");
bool bUndoHeight = false;
long ii = currHeight;
for ( ; ii < syncHeight + 1 && ii < currHeight + 100; ii++)
{
Block syncMcBlk = null;
if (ii == otherMcBlk.height - 1) // 同步prehash， 先查
{
syncMcBlk = blockMgr.GetBlock(otherMcBlk.prehash) ?? await QueryMcBlock(ii, ipEndPoint);
}
if (ii == otherMcBlk.height)
{
syncMcBlk = otherMcBlk;
}
else
{
string hash = await QueryMcBlockHash(ii, ipEndPoint);
syncMcBlk = blockMgr.GetBlock(hash);
if (syncMcBlk == null)
{
syncMcBlk = await QueryMcBlock(ii, ipEndPoint);
}
}
if (syncMcBlk == null)
{
break;
}
if (!blockMgr.AddBlock(syncMcBlk))
{
break;
}
for (int jj = 0; jj < syncMcBlk.linksblk.Count; jj++)
{
Block queryBlock = blockMgr.GetBlock(syncMcBlk.linksblk[jj]) ?? await QueryBlock(syncMcBlk.linksblk[jj], ipEndPoint);
// queryBlock 这里要验证签名 by sxh
if (queryBlock == null)
{
break;
}
if (!blockMgr.AddBlock(queryBlock))
{
break;
}
}
var beLinks = await QueryBeLinkHash(syncMcBlk.hash, ipEndPoint);
if (beLinks != null)
{
for (int jj = 0; jj < beLinks.Count; jj++)
{
Block queryBlock = blockMgr.GetBlock(beLinks[jj]) ?? await QueryBlock(beLinks[jj], ipEndPoint);
if (queryBlock == null)
{
break;
}
if (!blockMgr.AddBlock(queryBlock))
{
break;
}
}
}
// 比较链
if (syncMcBlk.height > 2 && !bUndoHeight)
{
var chain = BlockChainHelper.GetBlockChain(syncMcBlk.height - 3);
if (chain != null)
{
var chainnext = chain.GetMcBlockNext();
if (chainnext != null)
{
Block blk2 = blockMgr.GetBlock(chainnext.hash);
Block blk3 = blockMgr.GetBlock(syncMcBlk.prehash);
if (blk2 != null && blk3 != null && blk2.hash != blk3.prehash)
{
bUndoHeight = true;
}
}
}
}
}
// 回滚到同步块的高度
if (bUndoHeight)
{
long.TryParse(levelDBStore.Get("UndoHeight"), out transferHeight);
levelDBStore.UndoTransfers(currHeight);
long.TryParse(levelDBStore.Get("UndoHeight"), out transferHeight);
}
if (ii < syncHeight + 1)
{
return(false);
}
return(true);
}