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authorJeffrey Wilcke <geffobscura@gmail.com>2015-08-05 02:38:57 +0800
committerJeffrey Wilcke <geffobscura@gmail.com>2015-08-05 02:54:21 +0800
commitd8590d97902ff9c9ddc4ce56856f64b417b64489 (patch)
treecb03ee7be6224d48188fc38f315dc914583d2fc1 /miner
parent56219a5e7a9ed4762870a891bf962558ee846b74 (diff)
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miner: fixed worker race condition
Diffstat (limited to 'miner')
-rw-r--r--miner/worker.go87
1 files changed, 44 insertions, 43 deletions
diff --git a/miner/worker.go b/miner/worker.go
index 7fb40af78..a703baada 100644
--- a/miner/worker.go
+++ b/miner/worker.go
@@ -263,8 +263,9 @@ func (self *worker) wait() {
continue
}
block := result.Block
+ work := result.Work
- self.current.state.Sync()
+ work.state.Sync()
if self.fullValidation {
if _, err := self.chain.InsertChain(types.Blocks{block}); err != nil {
glog.V(logger.Error).Infoln("mining err", err)
@@ -292,7 +293,7 @@ func (self *worker) wait() {
// This puts transactions in a extra db for rpc
core.PutTransactions(self.extraDb, block, block.Transactions())
// store the receipts
- core.PutReceipts(self.extraDb, self.current.receipts)
+ core.PutReceipts(self.extraDb, work.receipts)
}
// broadcast before waiting for validation
@@ -303,7 +304,7 @@ func (self *worker) wait() {
self.mux.Post(core.ChainHeadEvent{block})
self.mux.Post(logs)
}
- }(block, self.current.state.Logs())
+ }(block, work.state.Logs())
}
// check staleness and display confirmation
@@ -313,7 +314,7 @@ func (self *worker) wait() {
stale = "stale "
} else {
confirm = "Wait 5 blocks for confirmation"
- self.current.localMinedBlocks = newLocalMinedBlock(block.Number().Uint64(), self.current.localMinedBlocks)
+ work.localMinedBlocks = newLocalMinedBlock(block.Number().Uint64(), work.localMinedBlocks)
}
glog.V(logger.Info).Infof("🔨 Mined %sblock (#%v / %x). %s", stale, block.Number(), block.Hash().Bytes()[:4], confirm)
@@ -322,9 +323,9 @@ func (self *worker) wait() {
}
}
-func (self *worker) push() {
+func (self *worker) push(work *Work) {
if atomic.LoadInt32(&self.mining) == 1 {
- if core.Canary(self.current.state) {
+ if core.Canary(work.state) {
glog.Infoln("Toxicity levels rising to deadly levels. Your canary has died. You can go back or continue down the mineshaft --more--")
glog.Infoln("You turn back and abort mining")
return
@@ -335,7 +336,7 @@ func (self *worker) push() {
atomic.AddInt32(&self.atWork, 1)
if agent.Work() != nil {
- agent.Work() <- self.current
+ agent.Work() <- work
}
}
}
@@ -344,7 +345,7 @@ func (self *worker) push() {
// makeCurrent creates a new environment for the current cycle.
func (self *worker) makeCurrent(parent *types.Block, header *types.Header) {
state := state.New(parent.Root(), self.eth.StateDb())
- current := &Work{
+ work := &Work{
state: state,
ancestors: set.New(),
family: set.New(),
@@ -357,23 +358,23 @@ func (self *worker) makeCurrent(parent *types.Block, header *types.Header) {
// when 08 is processed ancestors contain 07 (quick block)
for _, ancestor := range self.chain.GetBlocksFromHash(parent.Hash(), 7) {
for _, uncle := range ancestor.Uncles() {
- current.family.Add(uncle.Hash())
+ work.family.Add(uncle.Hash())
}
- current.family.Add(ancestor.Hash())
- current.ancestors.Add(ancestor.Hash())
+ work.family.Add(ancestor.Hash())
+ work.ancestors.Add(ancestor.Hash())
}
accounts, _ := self.eth.AccountManager().Accounts()
// Keep track of transactions which return errors so they can be removed
- current.remove = set.New()
- current.tcount = 0
- current.ignoredTransactors = set.New()
- current.lowGasTransactors = set.New()
- current.ownedAccounts = accountAddressesSet(accounts)
+ work.remove = set.New()
+ work.tcount = 0
+ work.ignoredTransactors = set.New()
+ work.lowGasTransactors = set.New()
+ work.ownedAccounts = accountAddressesSet(accounts)
if self.current != nil {
- current.localMinedBlocks = self.current.localMinedBlocks
+ work.localMinedBlocks = self.current.localMinedBlocks
}
- self.current = current
+ self.current = work
}
func (w *worker) setGasPrice(p *big.Int) {
@@ -387,13 +388,13 @@ func (w *worker) setGasPrice(p *big.Int) {
w.mux.Post(core.GasPriceChanged{w.gasPrice})
}
-func (self *worker) isBlockLocallyMined(deepBlockNum uint64) bool {
+func (self *worker) isBlockLocallyMined(current *Work, deepBlockNum uint64) bool {
//Did this instance mine a block at {deepBlockNum} ?
var isLocal = false
- for idx, blockNum := range self.current.localMinedBlocks.ints {
+ for idx, blockNum := range current.localMinedBlocks.ints {
if deepBlockNum == blockNum {
isLocal = true
- self.current.localMinedBlocks.ints[idx] = 0 //prevent showing duplicate logs
+ current.localMinedBlocks.ints[idx] = 0 //prevent showing duplicate logs
break
}
}
@@ -407,12 +408,12 @@ func (self *worker) isBlockLocallyMined(deepBlockNum uint64) bool {
return block != nil && block.Coinbase() == self.coinbase
}
-func (self *worker) logLocalMinedBlocks(previous *Work) {
- if previous != nil && self.current.localMinedBlocks != nil {
- nextBlockNum := self.current.Block.NumberU64()
+func (self *worker) logLocalMinedBlocks(current, previous *Work) {
+ if previous != nil && current.localMinedBlocks != nil {
+ nextBlockNum := current.Block.NumberU64()
for checkBlockNum := previous.Block.NumberU64(); checkBlockNum < nextBlockNum; checkBlockNum++ {
inspectBlockNum := checkBlockNum - miningLogAtDepth
- if self.isBlockLocallyMined(inspectBlockNum) {
+ if self.isBlockLocallyMined(current, inspectBlockNum) {
glog.V(logger.Info).Infof("🔨 🔗 Mined %d blocks back: block #%v", miningLogAtDepth, inspectBlockNum)
}
}
@@ -454,14 +455,14 @@ func (self *worker) commitNewWork() {
previous := self.current
self.makeCurrent(parent, header)
- current := self.current
+ work := self.current
// commit transactions for this run.
transactions := self.eth.TxPool().GetTransactions()
sort.Sort(types.TxByNonce{transactions})
- current.coinbase.SetGasLimit(header.GasLimit)
- current.commitTransactions(transactions, self.gasPrice, self.proc)
- self.eth.TxPool().RemoveTransactions(current.lowGasTxs)
+ work.coinbase.SetGasLimit(header.GasLimit)
+ work.commitTransactions(transactions, self.gasPrice, self.proc)
+ self.eth.TxPool().RemoveTransactions(work.lowGasTxs)
// compute uncles for the new block.
var (
@@ -472,7 +473,7 @@ func (self *worker) commitNewWork() {
if len(uncles) == 2 {
break
}
- if err := self.commitUncle(uncle.Header()); err != nil {
+ if err := self.commitUncle(work, uncle.Header()); err != nil {
if glog.V(logger.Ridiculousness) {
glog.V(logger.Detail).Infof("Bad uncle found and will be removed (%x)\n", hash[:4])
glog.V(logger.Detail).Infoln(uncle)
@@ -489,36 +490,36 @@ func (self *worker) commitNewWork() {
if atomic.LoadInt32(&self.mining) == 1 {
// commit state root after all state transitions.
- core.AccumulateRewards(self.current.state, header, uncles)
- current.state.SyncObjects()
- header.Root = current.state.Root()
+ core.AccumulateRewards(work.state, header, uncles)
+ work.state.SyncObjects()
+ header.Root = work.state.Root()
}
// create the new block whose nonce will be mined.
- current.Block = types.NewBlock(header, current.txs, uncles, current.receipts)
- self.current.Block.Td = new(big.Int).Set(core.CalcTD(self.current.Block, self.chain.GetBlock(self.current.Block.ParentHash())))
+ work.Block = types.NewBlock(header, work.txs, uncles, work.receipts)
+ work.Block.Td = new(big.Int).Set(core.CalcTD(work.Block, self.chain.GetBlock(work.Block.ParentHash())))
// We only care about logging if we're actually mining.
if atomic.LoadInt32(&self.mining) == 1 {
- glog.V(logger.Info).Infof("commit new work on block %v with %d txs & %d uncles. Took %v\n", current.Block.Number(), current.tcount, len(uncles), time.Since(tstart))
- self.logLocalMinedBlocks(previous)
+ glog.V(logger.Info).Infof("commit new work on block %v with %d txs & %d uncles. Took %v\n", work.Block.Number(), work.tcount, len(uncles), time.Since(tstart))
+ self.logLocalMinedBlocks(work, previous)
}
- self.push()
+ self.push(work)
}
-func (self *worker) commitUncle(uncle *types.Header) error {
+func (self *worker) commitUncle(work *Work, uncle *types.Header) error {
hash := uncle.Hash()
- if self.current.uncles.Has(hash) {
+ if work.uncles.Has(hash) {
return core.UncleError("Uncle not unique")
}
- if !self.current.ancestors.Has(uncle.ParentHash) {
+ if !work.ancestors.Has(uncle.ParentHash) {
return core.UncleError(fmt.Sprintf("Uncle's parent unknown (%x)", uncle.ParentHash[0:4]))
}
- if self.current.family.Has(hash) {
+ if work.family.Has(hash) {
return core.UncleError(fmt.Sprintf("Uncle already in family (%x)", hash))
}
- self.current.uncles.Add(uncle.Hash())
+ work.uncles.Add(uncle.Hash())
return nil
}