eth目前的共识算法pow的整理

涉及的代码子包主要有consensus,miner,core,geth
  1. /consensus 共识算法
  2. 　　  consensus.go
  3.          1. Prepare方法
  4.          2. CalcDifficulty方法：计算工作量
  5.          3. AccumulateRewards方法：计算每个块的出块奖励
  6.          4. VerifySeal方法：校验pow的工作量难度是否符合要求，返回nil则通过
  7.          5. verifyHeader方法：校验区块头是否符合共识规则

/miner 挖矿 work.go commitNewWork():提交新的块，新的交易,从交易池中获取未打包的交易，然后提交交易,进行打包 核心代码:

  1.          // Create the current work task and check any fork transitions needed
  2.             work := self.current
  3.             if self.config.DAOForkSupport && self.config.DAOForkBlock != nil && self.config.DAOForkBlock.Cmp(header.Number) == 0 {
  4.                 misc.ApplyDAOHardFork(work.state)
  5.             }
  6.             pending, err := self.eth.TxPool().Pending()
  7.             if err != nil {
  8.                 log.Error("Failed to fetch pending transactions", "err", err)
  9.                 return
  10.             }
  11.             txs := types.NewTransactionsByPriceAndNonce(self.current.signer, pending)
  12.             work.commitTransactions(self.mux, txs, self.chain, self.coinbase)
  1. eth/handler.go
  2.     NewProtocolManager --> verifyHeader -->  VerifySeal

整条链的运行,打包交易,出块的流程

  1. /cmd/geth/main.go/main
  2.     makeFullNode-->RegisterEthService-->eth.New-->NewProtocolManager --> verifyHeader -->  VerifySeal