diff options
Diffstat (limited to 'core')
| -rw-r--r-- | core/block_processor.go | 43 |
1 files changed, 14 insertions, 29 deletions
diff --git a/core/block_processor.go b/core/block_processor.go index 0eb3f8920..c360273da 100644 --- a/core/block_processor.go +++ b/core/block_processor.go @@ -143,6 +143,9 @@ func (self *BlockProcessor) ApplyTransactions(coinbase *state.StateObject, state return receipts, handled, unhandled, erroneous, 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) (td *big.Int, err error) { // Processing a blocks may never happen simultaneously sm.mutex.Lock() @@ -158,14 +161,14 @@ func (sm *BlockProcessor) Process(block *types.Block) (td *big.Int, err error) { } parent := sm.bc.GetBlock(header.ParentHash) - return sm.ProcessWithParent(block, parent) + return sm.processWithParent(block, parent) } -func (sm *BlockProcessor) ProcessWithParent(block, parent *types.Block) (td *big.Int, err error) { +func (sm *BlockProcessor) processWithParent(block, parent *types.Block) (td *big.Int, err error) { sm.lastAttemptedBlock = block + // Create a new state based on the parent's root (e.g., create copy) state := state.New(parent.Root(), sm.db) - //state := state.New(parent.Trie().Copy()) // Block validation if err = sm.ValidateBlock(block, parent); err != nil { @@ -179,18 +182,23 @@ func (sm *BlockProcessor) ProcessWithParent(block, parent *types.Block) (td *big header := block.Header() + // Validate the received block's bloom with the one derived from the generated receipts. + // For valid blocks this should always validate to true. rbloom := types.CreateBloom(receipts) if bytes.Compare(rbloom, header.Bloom) != 0 { err = fmt.Errorf("unable to replicate block's bloom=%x", rbloom) return } + // The transactions Trie's root (R = (Tr [[H1, T1], [H2, T2], ... [Hn, Tn]])) + // can be used by light clients to make sure they've received the correct Txs txSha := types.DeriveSha(block.Transactions()) if bytes.Compare(txSha, header.TxHash) != 0 { err = fmt.Errorf("validating transaction root. received=%x got=%x", header.TxHash, txSha) return } + // Tre receipt Trie's root (R = (Tr [[H1, R1], ... [Hn, R1]])) receiptSha := types.DeriveSha(receipts) if bytes.Compare(receiptSha, header.ReceiptHash) != 0 { fmt.Println("receipts", receipts) @@ -198,12 +206,14 @@ func (sm *BlockProcessor) ProcessWithParent(block, parent *types.Block) (td *big return } + // Accumulate static rewards; block reward, uncle's and uncle inclusion. if err = sm.AccumulateRewards(state, block, parent); err != nil { return } + // Commit state objects/accounts to a temporary trie (does not save) + // used to calculate the state root. state.Update(ethutil.Big0) - if !bytes.Equal(header.Root, state.Root()) { err = fmt.Errorf("invalid merkle root. received=%x got=%x", header.Root, state.Root()) return @@ -213,10 +223,6 @@ func (sm *BlockProcessor) ProcessWithParent(block, parent *types.Block) (td *big td = CalculateTD(block, parent) // Sync the current block's state to the database state.Sync() - // Set the block hashes for the current messages - state.Manifest().SetHash(block.Hash()) - // Reset the manifest XXX We need this? - state.Manifest().Reset() // Remove transactions from the pool sm.txpool.RemoveSet(block.Transactions()) @@ -296,27 +302,6 @@ func (sm *BlockProcessor) AccumulateRewards(statedb *state.StateDB, block, paren return nil } -func (sm *BlockProcessor) GetMessages(block *types.Block) (messages []*state.Message, err error) { - if !sm.bc.HasBlock(block.Header().ParentHash) { - return nil, ParentError(block.Header().ParentHash) - } - - sm.lastAttemptedBlock = block - - var ( - parent = sm.bc.GetBlock(block.Header().ParentHash) - //state = state.New(parent.Trie().Copy()) - state = state.New(parent.Root(), sm.db) - ) - - defer state.Reset() - - sm.TransitionState(state, parent, block) - sm.AccumulateRewards(state, block, parent) - - return state.Manifest().Messages, nil -} - func (sm *BlockProcessor) GetLogs(block *types.Block) (logs state.Logs, err error) { if !sm.bc.HasBlock(block.Header().ParentHash) { return nil, ParentError(block.Header().ParentHash) |