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core, core/state, trie: EIP158, reprice & skip empty account write

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This commit implements EIP158 part 1, 2, 3 & 4

1. If an account is empty it's no longer written to the trie. An empty
  account is defined as (balance=0, nonce=0, storage=0, code=0).
2. Delete an empty account if it's touched
3. An empty account is redefined as either non-existent or empty.
4. Zero value calls and zero value suicides no longer consume the 25k
  reation costs.

params: moved core/config to params

Signed-off-by: Jeffrey Wilcke <jeffrey@ethereum.org>
This commit is contained in:
Jeffrey Wilcke
2016-10-20 13:36:29 +02:00
parent 932d973e36
commit 445feaeef5
74 changed files with 729 additions and 573 deletions
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20
core/block_validator.go
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@ -41,13 +41,13 @@ var (
//
// BlockValidator implements Validator.
type BlockValidator struct {
config *ChainConfig // Chain configuration options
bc *BlockChain // Canonical block chain
Pow pow.PoW // Proof of work used for validating
config *params.ChainConfig // Chain configuration options
bc *BlockChain // Canonical block chain
Pow pow.PoW // Proof of work used for validating
}
// NewBlockValidator returns a new block validator which is safe for re-use
func NewBlockValidator(config *ChainConfig, blockchain *BlockChain, pow pow.PoW) *BlockValidator {
func NewBlockValidator(config *params.ChainConfig, blockchain *BlockChain, pow pow.PoW) *BlockValidator {
validator := &BlockValidator{
config: config,
Pow: pow,
@ -128,7 +128,7 @@ func (v *BlockValidator) ValidateState(block, parent *types.Block, statedb *stat
}
// Validate the state root against the received state root and throw
// an error if they don't match.
if root := statedb.IntermediateRoot(); header.Root != root {
if root := statedb.IntermediateRoot(v.config.IsEIP158(header.Number)); header.Root != root {
return fmt.Errorf("invalid merkle root: header=%x computed=%x", header.Root, root)
}
return nil
@ -203,7 +203,7 @@ func (v *BlockValidator) ValidateHeader(header, parent *types.Header, checkPow b
// Validates a header. Returns an error if the header is invalid.
//
// See YP section 4.3.4. "Block Header Validity"
func ValidateHeader(config *ChainConfig, pow pow.PoW, header *types.Header, parent *types.Header, checkPow, uncle bool) error {
func ValidateHeader(config *params.ChainConfig, pow pow.PoW, header *types.Header, parent *types.Header, checkPow, uncle bool) error {
if big.NewInt(int64(len(header.Extra))).Cmp(params.MaximumExtraDataSize) == 1 {
return fmt.Errorf("Header extra data too long (%d)", len(header.Extra))
}
@ -251,9 +251,9 @@ func ValidateHeader(config *ChainConfig, pow pow.PoW, header *types.Header, pare
if err := ValidateDAOHeaderExtraData(config, header); err != nil {
return err
}
if config.HomesteadGasRepriceBlock != nil && config.HomesteadGasRepriceBlock.Cmp(header.Number) == 0 {
if config.HomesteadGasRepriceHash != (common.Hash{}) && config.HomesteadGasRepriceHash != header.Hash() {
return ValidationError("Homestead gas reprice fork hash mismatch: have 0x%x, want 0x%x", header.Hash(), config.HomesteadGasRepriceHash)
if config.EIP150Block != nil && config.EIP150Block.Cmp(header.Number) == 0 {
if config.EIP150Hash != (common.Hash{}) && config.EIP150Hash != header.Hash() {
return ValidationError("Homestead gas reprice fork hash mismatch: have 0x%x, want 0x%x", header.Hash(), config.EIP150Hash)
}
}
return nil
@ -262,7 +262,7 @@ func ValidateHeader(config *ChainConfig, pow pow.PoW, header *types.Header, pare
// CalcDifficulty is the difficulty adjustment algorithm. It returns
// the difficulty that a new block should have when created at time
// given the parent block's time and difficulty.
func CalcDifficulty(config *ChainConfig, time, parentTime uint64, parentNumber, parentDiff *big.Int) *big.Int {
func CalcDifficulty(config *params.ChainConfig, time, parentTime uint64, parentNumber, parentDiff *big.Int) *big.Int {
if config.IsHomestead(new(big.Int).Add(parentNumber, common.Big1)) {
return calcDifficultyHomestead(time, parentTime, parentNumber, parentDiff)
} else {