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-rw-r--r--core/canary.go28
-rw-r--r--core/chain_manager.go110
-rw-r--r--miner/worker.go57
3 files changed, 129 insertions, 66 deletions
diff --git a/core/canary.go b/core/canary.go
new file mode 100644
index 000000000..de77c4bba
--- /dev/null
+++ b/core/canary.go
@@ -0,0 +1,28 @@
+package core
+
+import (
+ "math/big"
+
+ "github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/core/state"
+)
+
+var (
+ jeff = common.HexToAddress("9d38997c624a71b21278389ea2fdc460d000e4b2")
+ vitalik = common.HexToAddress("b1e570be07eaa673e4fd0c8265b64ef739385709")
+ christoph = common.HexToAddress("529bc43a5d93789fa28de1961db6a07e752204ae")
+ gav = common.HexToAddress("e3e942b2aa524293c84ff6c7f87a6635790ad5e4")
+)
+
+// Canary will check the 0'd address of the 4 contracts above.
+// If two or more are set to anything other than a 0 the canary
+// dies a horrible death.
+func Canary(statedb *state.StateDB) bool {
+ r := new(big.Int)
+ r.Add(r, statedb.GetState(jeff, common.Hash{}).Big())
+ r.Add(r, statedb.GetState(vitalik, common.Hash{}).Big())
+ r.Add(r, statedb.GetState(christoph, common.Hash{}).Big())
+ r.Add(r, statedb.GetState(gav, common.Hash{}).Big())
+
+ return r.Cmp(big.NewInt(1)) > 0
+}
diff --git a/core/chain_manager.go b/core/chain_manager.go
index a4c8563c3..daae24709 100644
--- a/core/chain_manager.go
+++ b/core/chain_manager.go
@@ -541,6 +541,58 @@ func (self *ChainManager) flushQueuedBlocks() {
}
}
+type writeStatus byte
+
+const (
+ nonStatTy writeStatus = iota
+ canonStatTy
+ splitStatTy
+ sideStatTy
+)
+
+func (self *ChainManager) WriteBlock(block *types.Block) (status writeStatus, err error) {
+ self.wg.Add(1)
+ defer self.wg.Done()
+
+ cblock := self.currentBlock
+ // Compare the TD of the last known block in the canonical chain to make sure it's greater.
+ // At this point it's possible that a different chain (fork) becomes the new canonical chain.
+ if block.Td.Cmp(self.Td()) > 0 {
+ // chain fork
+ if block.ParentHash() != cblock.Hash() {
+ // during split we merge two different chains and create the new canonical chain
+ err := self.merge(cblock, block)
+ if err != nil {
+ return nonStatTy, err
+ }
+
+ status = splitStatTy
+ }
+
+ self.mu.Lock()
+ self.setTotalDifficulty(block.Td)
+ self.insert(block)
+ self.mu.Unlock()
+
+ self.setTransState(state.New(block.Root(), self.stateDb))
+ self.txState.SetState(state.New(block.Root(), self.stateDb))
+
+ status = canonStatTy
+ } else {
+ status = sideStatTy
+ }
+
+ // Write block to database. Eventually we'll have to improve on this and throw away blocks that are
+ // not in the canonical chain.
+ self.mu.Lock()
+ self.enqueueForWrite(block)
+ self.mu.Unlock()
+ // Delete from future blocks
+ self.futureBlocks.Delete(block.Hash())
+
+ return
+}
+
// InsertChain will attempt to insert the given chain in to the canonical chain or, otherwise, create a fork. It an error is returned
// it will return the index number of the failing block as well an error describing what went wrong (for possible errors see core/errors.go).
func (self *ChainManager) InsertChain(chain types.Blocks) (int, error) {
@@ -635,57 +687,29 @@ func (self *ChainManager) InsertChain(chain types.Blocks) (int, error) {
txcount += len(block.Transactions())
- cblock := self.currentBlock
- // Compare the TD of the last known block in the canonical chain to make sure it's greater.
- // At this point it's possible that a different chain (fork) becomes the new canonical chain.
- if block.Td.Cmp(self.Td()) > 0 {
- // chain fork
- if block.ParentHash() != cblock.Hash() {
- // during split we merge two different chains and create the new canonical chain
- err := self.merge(cblock, block)
- if err != nil {
- return i, err
- }
-
- queue[i] = ChainSplitEvent{block, logs}
- queueEvent.splitCount++
- }
-
- self.mu.Lock()
- self.setTotalDifficulty(block.Td)
- self.insert(block)
- self.mu.Unlock()
-
- jsonlogger.LogJson(&logger.EthChainNewHead{
- BlockHash: block.Hash().Hex(),
- BlockNumber: block.Number(),
- ChainHeadHash: cblock.Hash().Hex(),
- BlockPrevHash: block.ParentHash().Hex(),
- })
-
- self.setTransState(state.New(block.Root(), self.stateDb))
- self.txState.SetState(state.New(block.Root(), self.stateDb))
-
- queue[i] = ChainEvent{block, block.Hash(), logs}
- queueEvent.canonicalCount++
-
+ // write the block to the chain and get the status
+ status, err := self.WriteBlock(block)
+ if err != nil {
+ return i, err
+ }
+ switch status {
+ case canonStatTy:
if glog.V(logger.Debug) {
glog.Infof("[%v] inserted block #%d (%d TXs %d UNCs) (%x...). Took %v\n", time.Now().UnixNano(), block.Number(), len(block.Transactions()), len(block.Uncles()), block.Hash().Bytes()[0:4], time.Since(bstart))
}
- } else {
+ queue[i] = ChainEvent{block, block.Hash(), logs}
+ queueEvent.canonicalCount++
+ case sideStatTy:
if glog.V(logger.Detail) {
glog.Infof("inserted forked block #%d (TD=%v) (%d TXs %d UNCs) (%x...). Took %v\n", block.Number(), block.Difficulty(), len(block.Transactions()), len(block.Uncles()), block.Hash().Bytes()[0:4], time.Since(bstart))
}
-
queue[i] = ChainSideEvent{block, logs}
queueEvent.sideCount++
+ case splitStatTy:
+ queue[i] = ChainSplitEvent{block, logs}
+ queueEvent.splitCount++
}
- self.enqueueForWrite(block)
- // Delete from future blocks
- self.futureBlocks.Delete(block.Hash())
-
stats.processed++
- blockInsertTimer.UpdateSince(bstart)
}
if (stats.queued > 0 || stats.processed > 0 || stats.ignored > 0) && bool(glog.V(logger.Info)) {
@@ -744,9 +768,9 @@ func (self *ChainManager) diff(oldBlock, newBlock *types.Block) (types.Blocks, e
}
}
- if glog.V(logger.Info) {
+ if glog.V(logger.Debug) {
commonHash := commonBlock.Hash()
- glog.Infof("Fork detected @ %x. Reorganising chain from #%v %x to %x", commonHash[:4], numSplit, oldStart.Hash().Bytes()[:4], newStart.Hash().Bytes()[:4])
+ glog.Infof("Chain split detected @ %x. Reorganising chain from #%v %x to %x", commonHash[:4], numSplit, oldStart.Hash().Bytes()[:4], newStart.Hash().Bytes()[:4])
}
return newChain, nil
diff --git a/miner/worker.go b/miner/worker.go
index bc2fe1ab2..0971bd957 100644
--- a/miner/worker.go
+++ b/miner/worker.go
@@ -233,38 +233,40 @@ func (self *worker) wait() {
continue
}
- if _, err := self.chain.InsertChain(types.Blocks{block}); err == nil {
- for _, uncle := range block.Uncles() {
- delete(self.possibleUncles, uncle.Hash())
- }
- self.mux.Post(core.NewMinedBlockEvent{block})
-
- var stale, confirm string
- canonBlock := self.chain.GetBlockByNumber(block.NumberU64())
- if canonBlock != nil && canonBlock.Hash() != block.Hash() {
- stale = "stale "
- } else {
- confirm = "Wait 5 blocks for confirmation"
- self.current.localMinedBlocks = newLocalMinedBlock(block.Number().Uint64(), self.current.localMinedBlocks)
- }
-
- glog.V(logger.Info).Infof("🔨 Mined %sblock (#%v / %x). %s", stale, block.Number(), block.Hash().Bytes()[:4], confirm)
+ _, err := self.chain.WriteBlock(block)
+ if err != nil {
+ glog.V(logger.Error).Infoln("error writing block to chain", err)
+ continue
+ }
- jsonlogger.LogJson(&logger.EthMinerNewBlock{
- BlockHash: block.Hash().Hex(),
- BlockNumber: block.Number(),
- ChainHeadHash: block.ParentHash().Hex(),
- BlockPrevHash: block.ParentHash().Hex(),
- })
+ // check staleness and display confirmation
+ var stale, confirm string
+ canonBlock := self.chain.GetBlockByNumber(block.NumberU64())
+ if canonBlock != nil && canonBlock.Hash() != block.Hash() {
+ stale = "stale "
} else {
- self.commitNewWork()
+ confirm = "Wait 5 blocks for confirmation"
+ self.current.localMinedBlocks = newLocalMinedBlock(block.Number().Uint64(), self.current.localMinedBlocks)
}
+
+ glog.V(logger.Info).Infof("🔨 Mined %sblock (#%v / %x). %s", stale, block.Number(), block.Hash().Bytes()[:4], confirm)
+
+ // broadcast before waiting for validation
+ go self.mux.Post(core.NewMinedBlockEvent{block})
+
+ self.commitNewWork()
}
}
}
func (self *worker) push() {
if atomic.LoadInt32(&self.mining) == 1 {
+ if core.Canary(self.current.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
+ }
+
// push new work to agents
for _, agent := range self.agents {
atomic.AddInt32(&self.atWork, 1)
@@ -369,6 +371,13 @@ func (self *worker) commitNewWork() {
if tstamp <= parent.Time() {
tstamp = parent.Time() + 1
}
+ // this will ensure we're not going off too far in the future
+ if now := time.Now().Unix(); tstamp > now+4 {
+ wait := time.Duration(tstamp-now) * time.Second
+ glog.V(logger.Info).Infoln("We are too far in the future. Waiting for", wait)
+ time.Sleep(wait)
+ }
+
num := parent.Number()
header := &types.Header{
ParentHash: parent.Hash(),
@@ -420,11 +429,13 @@ func (self *worker) commitNewWork() {
// commit state root after all state transitions.
core.AccumulateRewards(self.current.state, header, uncles)
current.state.Update()
+ self.current.state.Sync()
header.Root = current.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())))
// We only care about logging if we're actually mining.
if atomic.LoadInt32(&self.mining) == 1 {
generated by cgit (git 2.34.1) at 2024-09-24 18:28:45 +0800