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core, miner: miner header validation, transaction & receipt writing

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* Miners do now verify their own header, not their state.
* Changed old putTx and putReceipts to be exported
* Moved writing of transactions and receipts out of the block processer
  in to the chain manager. Closes #1386
* Miner post ChainHeadEvent & ChainEvent. Closes #1388
This commit is contained in:
Jeffrey Wilcke
2015-07-03 11:24:42 +02:00
parent 03129e7c93
commit 29e2fb38f8
15 changed files with 126 additions and 89 deletions
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64
core/block_processor.go
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@ -151,7 +151,7 @@ func (sm *BlockProcessor) RetryProcess(block *types.Block) (logs state.Logs, err
errch := make(chan bool)
go func() { errch <- sm.Pow.Verify(block) }()
logs, err = sm.processWithParent(block, parent)
logs, _, err = sm.processWithParent(block, parent)
if !<-errch {
return nil, ValidationError("Block's nonce is invalid (= %x)", block.Nonce)
}
@ -162,23 +162,23 @@ func (sm *BlockProcessor) RetryProcess(block *types.Block) (logs state.Logs, err
// Process block will attempt to process the given block's transactions and applies them
// on top of the block's parent state (given it exists) and will return wether it was
// successful or not.
func (sm *BlockProcessor) Process(block *types.Block) (logs state.Logs, err error) {
func (sm *BlockProcessor) Process(block *types.Block) (logs state.Logs, receipts types.Receipts, err error) {
// Processing a blocks may never happen simultaneously
sm.mutex.Lock()
defer sm.mutex.Unlock()
if sm.bc.HasBlock(block.Hash()) {
return nil, &KnownBlockError{block.Number(), block.Hash()}
return nil, nil, &KnownBlockError{block.Number(), block.Hash()}
}
if !sm.bc.HasBlock(block.ParentHash()) {
return nil, ParentError(block.ParentHash())
return nil, nil, ParentError(block.ParentHash())
}
parent := sm.bc.GetBlock(block.ParentHash())
return sm.processWithParent(block, parent)
}
func (sm *BlockProcessor) processWithParent(block, parent *types.Block) (logs state.Logs, err error) {
func (sm *BlockProcessor) processWithParent(block, parent *types.Block) (logs state.Logs, receipts types.Receipts, err error) {
// Create a new state based on the parent's root (e.g., create copy)
state := state.New(parent.Root(), sm.db)
header := block.Header()
@ -192,10 +192,10 @@ func (sm *BlockProcessor) processWithParent(block, parent *types.Block) (logs st
// There can be at most two uncles
if len(uncles) > 2 {
return nil, ValidationError("Block can only contain maximum 2 uncles (contained %v)", len(uncles))
return nil, nil, ValidationError("Block can only contain maximum 2 uncles (contained %v)", len(uncles))
}
receipts, err := sm.TransitionState(state, parent, block, false)
receipts, err = sm.TransitionState(state, parent, block, false)
if err != nil {
return
}
@ -248,15 +248,7 @@ func (sm *BlockProcessor) processWithParent(block, parent *types.Block) (logs st
// Sync the current block's state to the database
state.Sync()
// This puts transactions in a extra db for rpc
for i, tx := range block.Transactions() {
putTx(sm.extraDb, tx, block, uint64(i))
}
// store the receipts
putReceipts(sm.extraDb, block.Hash(), receipts)
return state.Logs(), nil
return state.Logs(), receipts, nil
}
var (
@ -411,43 +403,3 @@ func getBlockReceipts(db common.Database, bhash common.Hash) (receipts types.Rec
}
return
}
func putTx(db common.Database, tx *types.Transaction, block *types.Block, i uint64) {
rlpEnc, err := rlp.EncodeToBytes(tx)
if err != nil {
glog.V(logger.Debug).Infoln("Failed encoding tx", err)
return
}
db.Put(tx.Hash().Bytes(), rlpEnc)
var txExtra struct {
BlockHash common.Hash
BlockIndex uint64
Index uint64
}
txExtra.BlockHash = block.Hash()
txExtra.BlockIndex = block.NumberU64()
txExtra.Index = i
rlpMeta, err := rlp.EncodeToBytes(txExtra)
if err != nil {
glog.V(logger.Debug).Infoln("Failed encoding tx meta data", err)
return
}
db.Put(append(tx.Hash().Bytes(), 0x0001), rlpMeta)
}
func putReceipts(db common.Database, hash common.Hash, receipts types.Receipts) error {
storageReceipts := make([]*types.ReceiptForStorage, len(receipts))
for i, receipt := range receipts {
storageReceipts[i] = (*types.ReceiptForStorage)(receipt)
}
bytes, err := rlp.EncodeToBytes(storageReceipts)
if err != nil {
return err
}
db.Put(append(receiptsPre, hash[:]...), bytes)
return nil
}