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author | Janos Guljas <janos@resenje.org> | 2018-09-25 22:57:31 +0800 |
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committer | Janos Guljas <janos@resenje.org> | 2018-09-25 22:57:31 +0800 |
commit | 24349144b6c0642755569268bab56b9033743212 (patch) | |
tree | 9d9d2b6659fd8a56512dfc807aafe4b733165ae1 /eth/backend.go | |
parent | 7d56602391e155e2ce9ba7c261300a1804ab9972 (diff) | |
parent | d3441ebb563439bac0837d70591f92e2c6080303 (diff) | |
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Merge branch 'master' into max-stream-peer-servers
Diffstat (limited to 'eth/backend.go')
-rw-r--r-- | eth/backend.go | 66 |
1 files changed, 62 insertions, 4 deletions
diff --git a/eth/backend.go b/eth/backend.go index 9926225f2..b555b064a 100644 --- a/eth/backend.go +++ b/eth/backend.go @@ -149,10 +149,14 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) { rawdb.WriteDatabaseVersion(chainDb, core.BlockChainVersion) } var ( - vmConfig = vm.Config{EnablePreimageRecording: config.EnablePreimageRecording} + vmConfig = vm.Config{ + EnablePreimageRecording: config.EnablePreimageRecording, + EWASMInterpreter: config.EWASMInterpreter, + EVMInterpreter: config.EVMInterpreter, + } cacheConfig = &core.CacheConfig{Disabled: config.NoPruning, TrieNodeLimit: config.TrieCache, TrieTimeLimit: config.TrieTimeout} ) - eth.blockchain, err = core.NewBlockChain(chainDb, cacheConfig, eth.chainConfig, eth.engine, vmConfig) + eth.blockchain, err = core.NewBlockChain(chainDb, cacheConfig, eth.chainConfig, eth.engine, vmConfig, eth.shouldPreserve) if err != nil { return nil, err } @@ -173,7 +177,7 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) { return nil, err } - eth.miner = miner.New(eth, eth.chainConfig, eth.EventMux(), eth.engine, config.MinerRecommit, config.MinerGasFloor, config.MinerGasCeil) + eth.miner = miner.New(eth, eth.chainConfig, eth.EventMux(), eth.engine, config.MinerRecommit, config.MinerGasFloor, config.MinerGasCeil, eth.isLocalBlock) eth.miner.SetExtra(makeExtraData(config.MinerExtraData)) eth.APIBackend = &EthAPIBackend{eth, nil} @@ -330,6 +334,60 @@ func (s *Ethereum) Etherbase() (eb common.Address, err error) { return common.Address{}, fmt.Errorf("etherbase must be explicitly specified") } +// isLocalBlock checks whether the specified block is mined +// by local miner accounts. +// +// We regard two types of accounts as local miner account: etherbase +// and accounts specified via `txpool.locals` flag. +func (s *Ethereum) isLocalBlock(block *types.Block) bool { + author, err := s.engine.Author(block.Header()) + if err != nil { + log.Warn("Failed to retrieve block author", "number", block.NumberU64(), "hash", block.Hash(), "err", err) + return false + } + // Check whether the given address is etherbase. + s.lock.RLock() + etherbase := s.etherbase + s.lock.RUnlock() + if author == etherbase { + return true + } + // Check whether the given address is specified by `txpool.local` + // CLI flag. + for _, account := range s.config.TxPool.Locals { + if account == author { + return true + } + } + return false +} + +// shouldPreserve checks whether we should preserve the given block +// during the chain reorg depending on whether the author of block +// is a local account. +func (s *Ethereum) shouldPreserve(block *types.Block) bool { + // The reason we need to disable the self-reorg preserving for clique + // is it can be probable to introduce a deadlock. + // + // e.g. If there are 7 available signers + // + // r1 A + // r2 B + // r3 C + // r4 D + // r5 A [X] F G + // r6 [X] + // + // In the round5, the inturn signer E is offline, so the worst case + // is A, F and G sign the block of round5 and reject the block of opponents + // and in the round6, the last available signer B is offline, the whole + // network is stuck. + if _, ok := s.engine.(*clique.Clique); ok { + return false + } + return s.isLocalBlock(block) +} + // SetEtherbase sets the mining reward address. func (s *Ethereum) SetEtherbase(etherbase common.Address) { s.lock.Lock() @@ -362,7 +420,7 @@ func (s *Ethereum) StartMining(threads int) error { s.lock.RUnlock() s.txPool.SetGasPrice(price) - // Configure the local mining addess + // Configure the local mining address eb, err := s.Etherbase() if err != nil { log.Error("Cannot start mining without etherbase", "err", err) |