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core: added basic chain configuration

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Added chain configuration options and write out during genesis database
insertion. If no "config" was found, nothing is written to the database.

Configurations are written on a per genesis base. This means
that any chain (which is identified by it's genesis hash) can have their
own chain settings.
This commit is contained in:
Jeffrey Wilcke
2016-03-01 23:32:43 +01:00
committed by Jeffrey Wilcke
parent 10d3466c93
commit f0cbebb19f
55 changed files with 732 additions and 431 deletions
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25
core/blockchain.go
View File

@@ -80,11 +80,12 @@ const (
// included in the canonical one where as GetBlockByNumber always represents the
// canonical chain.
type BlockChain struct {
config *ChainConfig // chain & network configuration
hc *HeaderChain
chainDb ethdb.Database
eventMux *event.TypeMux
genesisBlock *types.Block
vmConfig *vm.Config
mu sync.RWMutex // global mutex for locking chain operations
chainmu sync.RWMutex // blockchain insertion lock
@@ -113,13 +114,14 @@ type BlockChain struct {
// NewBlockChain returns a fully initialised block chain using information
// available in the database. It initialiser the default Ethereum Validator and
// Processor.
func NewBlockChain(chainDb ethdb.Database, pow pow.PoW, mux *event.TypeMux) (*BlockChain, error) {
func NewBlockChain(chainDb ethdb.Database, config *ChainConfig, pow pow.PoW, mux *event.TypeMux) (*BlockChain, error) {
bodyCache, _ := lru.New(bodyCacheLimit)
bodyRLPCache, _ := lru.New(bodyCacheLimit)
blockCache, _ := lru.New(blockCacheLimit)
futureBlocks, _ := lru.New(maxFutureBlocks)
bc := &BlockChain{
config: config,
chainDb: chainDb,
eventMux: mux,
quit: make(chan struct{}),
@@ -129,24 +131,21 @@ func NewBlockChain(chainDb ethdb.Database, pow pow.PoW, mux *event.TypeMux) (*Bl
futureBlocks: futureBlocks,
pow: pow,
}
bc.SetValidator(NewBlockValidator(bc, pow))
bc.SetProcessor(NewStateProcessor(bc))
bc.SetValidator(NewBlockValidator(config, bc, pow))
bc.SetProcessor(NewStateProcessor(config, bc))
gv := func() HeaderValidator { return bc.Validator() }
var err error
bc.hc, err = NewHeaderChain(chainDb, gv, bc.getProcInterrupt)
bc.hc, err = NewHeaderChain(chainDb, config, gv, bc.getProcInterrupt)
if err != nil {
return nil, err
}
bc.genesisBlock = bc.GetBlockByNumber(0)
if bc.genesisBlock == nil {
bc.genesisBlock, err = WriteDefaultGenesisBlock(chainDb)
if err != nil {
return nil, err
}
glog.V(logger.Info).Infoln("WARNING: Wrote default ethereum genesis block")
return nil, ErrNoGenesis
}
if err := bc.loadLastState(); err != nil {
return nil, err
}
@@ -163,10 +162,6 @@ func NewBlockChain(chainDb ethdb.Database, pow pow.PoW, mux *event.TypeMux) (*Bl
return bc, nil
}
func (self *BlockChain) SetConfig(vmConfig *vm.Config) {
self.vmConfig = vmConfig
}
func (self *BlockChain) getProcInterrupt() bool {
return atomic.LoadInt32(&self.procInterrupt) == 1
}
@@ -896,7 +891,7 @@ func (self *BlockChain) InsertChain(chain types.Blocks) (int, error) {
return i, err
}
// Process block using the parent state as reference point.
receipts, logs, usedGas, err := self.processor.Process(block, statedb, self.vmConfig)
receipts, logs, usedGas, err := self.processor.Process(block, statedb, self.config.VmConfig)
if err != nil {
reportBlock(block, err)
return i, err