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core, miner: added write block method & changed mining propagation

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This commit is contained in:
Jeffrey Wilcke 2015-06-29 12:12:30 +02:00
parent 059a1e9e4e
commit d1e93db3eb
2 changed files with 95 additions and 73 deletions
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106
core/chain_manager.go
View File

@ -548,6 +548,58 @@ func (self *ChainManager) procFutureBlocks() {
}
}
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.write(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) {
@ -641,59 +693,29 @@ 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)
// write the block to the chain and get the status
status, err := self.WriteBlock(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++
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++
}
// Write block to database. Eventually we'll have to improve on this and throw away blocks that are
// not in the canonical chain.
self.write(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)) {
@ -752,9 +774,9 @@ 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

32
miner/worker.go
View File

@ -239,13 +239,10 @@ func (self *worker) wait() {
continue
}
// broadcast before waiting for validation
go self.mux.Post(core.NewMinedBlockEvent{block})
// insert mined block in to our own chain
if _, err := self.chain.InsertChain(types.Blocks{block}); err == nil {
// remove uncles we've previously inserted
for _, uncle := range block.Uncles() {
delete(self.possibleUncles, uncle.Hash())
_, err := self.chain.WriteBlock(block)
if err != nil {
glog.V(logger.Error).Infoln("error writing block to chain", err)
continue
}
// check staleness and display confirmation
@ -260,22 +257,17 @@ func (self *worker) wait() {
glog.V(logger.Info).Infof("🔨 Mined %sblock (#%v / %x). %s", stale, block.Number(), block.Hash().Bytes()[:4], confirm)
// XXX remove old structured json logging
jsonlogger.LogJson(&logger.EthMinerNewBlock{
BlockHash: block.Hash().Hex(),
BlockNumber: block.Number(),
ChainHeadHash: block.ParentHeaderHash.Hex(),
BlockPrevHash: block.ParentHeaderHash.Hex(),
})
} else {
// broadcast before waiting for validation
go self.mux.Post(core.NewMinedBlockEvent{block})
self.commitNewWork()
}
}
}
}
func (self *worker) push() {
if atomic.LoadInt32(&self.mining) == 1 {
self.current.state.Sync()
self.current.block.SetRoot(self.current.state.Root())
// push new work to agents
@ -302,6 +294,13 @@ func (self *worker) makeCurrent() {
if block.Time() <= parent.Time() {
block.Header().Time = parent.Header().Time + 1
}
// this will ensure we're not going off too far in the future
if now := time.Now().Unix(); block.Time() > now+4 {
wait := time.Duration(block.Time()-now) * time.Second
glog.V(logger.Info).Infoln("We are too far in the future. Waiting for", wait)
time.Sleep(wait)
}
block.Header().Extra = self.extra
// when 08 is processed ancestors contain 07 (quick block)
@ -428,6 +427,7 @@ func (self *worker) commitNewWork() {
self.current.block.SetUncles(uncles)
core.AccumulateRewards(self.current.state, self.current.block)
self.current.block.Td = new(big.Int).Set(core.CalcTD(self.current.block, self.chain.GetBlock(self.current.block.ParentHash())))
self.current.state.Update()