forked from mirror/go-ethereum
obscuren
10 years ago
parent
4dc283c0fb
commit
b1870631a4
@ -0,0 +1,164 @@ |
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package miner |
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import ( |
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"fmt" |
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"math/big" |
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"sort" |
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"github.com/ethereum/go-ethereum/core" |
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"github.com/ethereum/go-ethereum/core/types" |
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"github.com/ethereum/go-ethereum/eth" |
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"github.com/ethereum/go-ethereum/ethutil" |
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"github.com/ethereum/go-ethereum/event" |
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"github.com/ethereum/go-ethereum/pow" |
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"github.com/ethereum/go-ethereum/state" |
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"gopkg.in/fatih/set.v0" |
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) |
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type environment struct { |
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totalUsedGas *big.Int |
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state *state.StateDB |
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coinbase *state.StateObject |
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block *types.Block |
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ancestors *set.Set |
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uncles *set.Set |
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} |
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func env(block *types.Block, eth *eth.Ethereum) *environment { |
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state := state.New(block.Root(), eth.Db()) |
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env := &environment{ |
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totalUsedGas: new(big.Int), |
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state: state, |
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block: block, |
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ancestors: set.New(), |
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uncles: set.New(), |
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coinbase: state.GetOrNewStateObject(block.Coinbase()), |
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} |
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for _, ancestor := range eth.ChainManager().GetAncestors(block, 7) { |
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env.ancestors.Add(string(ancestor.Hash())) |
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} |
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return env |
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} |
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type worker struct { |
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agents []chan<- *types.Block |
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mux *event.TypeMux |
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quit chan struct{} |
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pow pow.PoW |
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eth *eth.Ethereum |
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chain *core.ChainManager |
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proc *core.BlockProcessor |
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coinbase []byte |
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current *environment |
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} |
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func (self *worker) register(agent chan<- *types.Block) { |
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self.agents = append(self.agents, agent) |
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} |
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func (self *worker) update() { |
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events := self.mux.Subscribe(core.NewBlockEvent{}, core.TxPreEvent{}, &LocalTx{}) |
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out: |
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for { |
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select { |
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case event := <-events.Chan(): |
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switch event := event.(type) { |
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case core.NewBlockEvent: |
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block := event.Block |
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if self.eth.ChainManager().HasBlock(block.Hash()) { |
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} else if true { |
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} |
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case core.TxPreEvent, *LocalTx: |
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} |
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case <-self.quit: |
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break out |
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} |
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} |
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} |
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func (self *worker) commit() { |
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self.current.state.Update(ethutil.Big0) |
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self.current.block.SetRoot(self.current.state.Root()) |
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for _, agent := range self.agents { |
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agent <- self.current.block |
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} |
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} |
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func (self *worker) commitNewWork() { |
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self.current = env(self.chain.NewBlock(self.coinbase), self.eth) |
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parent := self.chain.GetBlock(self.current.block.ParentHash()) |
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self.current.coinbase.SetGasPool(core.CalcGasLimit(parent, self.current.block)) |
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transactions := self.eth.TxPool().GetTransactions() |
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sort.Sort(types.TxByNonce{transactions}) |
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// Keep track of transactions which return errors so they can be removed
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var remove types.Transactions |
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for _, tx := range transactions { |
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err := self.commitTransaction(tx) |
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switch { |
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case core.IsNonceErr(err): |
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remove = append(remove, tx) |
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case core.IsGasLimitErr(err): |
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// ignore
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default: |
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minerlogger.Infoln(err) |
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remove = append(remove, tx) |
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} |
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} |
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self.eth.TxPool().RemoveSet(remove) |
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self.current.coinbase.AddAmount(core.BlockReward) |
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self.commit() |
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} |
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var ( |
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inclusionReward = new(big.Int).Div(core.BlockReward, big.NewInt(32)) |
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_uncleReward = new(big.Int).Mul(core.BlockReward, big.NewInt(15)) |
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uncleReward = new(big.Int).Div(_uncleReward, big.NewInt(16)) |
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) |
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func (self *worker) commitUncle(uncle *types.Header) error { |
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if self.current.uncles.Has(string(uncle.Hash())) { |
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// Error not unique
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return core.UncleError("Uncle not unique") |
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} |
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self.current.uncles.Add(string(uncle.Hash())) |
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if !self.current.ancestors.Has(string(uncle.ParentHash)) { |
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return core.UncleError(fmt.Sprintf("Uncle's parent unknown (%x)", uncle.ParentHash[0:4])) |
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} |
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if !self.pow.Verify(types.NewBlockWithHeader(uncle)) { |
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return core.ValidationError("Uncle's nonce is invalid (= %v)", ethutil.Bytes2Hex(uncle.Nonce)) |
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} |
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uncleAccount := self.current.state.GetAccount(uncle.Coinbase) |
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uncleAccount.AddAmount(uncleReward) |
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self.current.coinbase.AddBalance(uncleReward) |
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return nil |
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} |
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func (self *worker) commitTransaction(tx *types.Transaction) error { |
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snapshot := self.current.state.Copy() |
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receipt, txGas, err := self.proc.ApplyTransaction(self.current.coinbase, self.current.state, self.current.block, tx, self.current.totalUsedGas, true) |
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if err != nil { |
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self.current.state.Set(snapshot) |
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return err |
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} |
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self.current.totalUsedGas.Add(self.current.totalUsedGas, txGas) |
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self.current.block.AddTransaction(tx) |
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self.current.block.AddReceipt(receipt) |
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return nil |
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} |
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