diff options
Diffstat (limited to 'core/types/block.go')
| -rw-r--r-- | core/types/block.go | 103 |
1 files changed, 59 insertions, 44 deletions
diff --git a/core/types/block.go b/core/types/block.go index 4096d86..8e23488 100644 --- a/core/types/block.go +++ b/core/types/block.go @@ -24,18 +24,19 @@ import ( "io" "math/big" "reflect" - "sort" + "sync" "sync/atomic" "time" - "github.com/ava-labs/go-ethereum/common" - "github.com/ava-labs/go-ethereum/common/hexutil" - "github.com/ava-labs/go-ethereum/rlp" + "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/common/hexutil" + "github.com/ethereum/go-ethereum/crypto" + "github.com/ethereum/go-ethereum/rlp" "golang.org/x/crypto/sha3" ) var ( - EmptyRootHash = DeriveSha(Transactions{}) + EmptyRootHash = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421") EmptyUncleHash = rlpHash([]*Header(nil)) ) @@ -132,20 +133,40 @@ func (h *Header) SanityCheck() error { return nil } +// hasherPool holds LegacyKeccak hashers. +var hasherPool = sync.Pool{ + New: func() interface{} { + return sha3.NewLegacyKeccak256() + }, +} + func rlpHash(x interface{}) (h common.Hash) { - hw := sha3.NewLegacyKeccak256() - rlp.Encode(hw, x) - hw.Sum(h[:0]) + sha := hasherPool.Get().(crypto.KeccakState) + defer hasherPool.Put(sha) + sha.Reset() + rlp.Encode(sha, x) + sha.Read(h[:]) return h } +// EmptyBody returns true if there is no additional 'body' to complete the header +// that is: no transactions and no uncles. +func (h *Header) EmptyBody() bool { + return h.TxHash == EmptyRootHash && h.UncleHash == EmptyUncleHash +} + +// EmptyReceipts returns true if there are no receipts for this header/block. +func (h *Header) EmptyReceipts() bool { + return h.ReceiptHash == EmptyRootHash +} + // Body is a simple (mutable, non-safe) data container for storing and moving // a block's data contents (transactions and uncles) together. type Body struct { Transactions []*Transaction Uncles []*Header Version uint32 - ExtData []byte `rlp:"nil"` + ExtData *[]byte `rlp:"nil"` } // Block represents an entire block in the Ethereum blockchain. @@ -154,7 +175,7 @@ type Block struct { uncles []*Header transactions Transactions version uint32 - extdata []byte + extdata *[]byte // caches hash atomic.Value @@ -195,7 +216,7 @@ type myextblock struct { Txs []*Transaction Uncles []*Header Version uint32 - ExtData []byte `rlp:"nil"` + ExtData *[]byte `rlp:"nil"` } // [deprecated by eth/63] @@ -214,14 +235,14 @@ type storageblock struct { // The values of TxHash, UncleHash, ReceiptHash and Bloom in header // are ignored and set to values derived from the given txs, uncles // and receipts. -func NewBlock(header *Header, txs []*Transaction, uncles []*Header, receipts []*Receipt, extdata []byte) *Block { +func NewBlock(header *Header, txs []*Transaction, uncles []*Header, receipts []*Receipt, hasher Hasher, extdata []byte) *Block { b := &Block{header: CopyHeader(header), td: new(big.Int)} // TODO: panic if len(txs) != len(receipts) if len(txs) == 0 { b.header.TxHash = EmptyRootHash } else { - b.header.TxHash = DeriveSha(Transactions(txs)) + b.header.TxHash = DeriveSha(Transactions(txs), hasher) b.transactions = make(Transactions, len(txs)) copy(b.transactions, txs) } @@ -229,7 +250,7 @@ func NewBlock(header *Header, txs []*Transaction, uncles []*Header, receipts []* if len(receipts) == 0 { b.header.ReceiptHash = EmptyRootHash } else { - b.header.ReceiptHash = DeriveSha(Receipts(receipts)) + b.header.ReceiptHash = DeriveSha(Receipts(receipts), hasher) b.header.Bloom = CreateBloom(receipts) } @@ -243,8 +264,11 @@ func NewBlock(header *Header, txs []*Transaction, uncles []*Header, receipts []* } } - b.extdata = make([]byte, len(extdata)) - copy(b.extdata, extdata) + if extdata != nil { + _data := make([]byte, len(extdata)) + b.extdata = &_data + copy(*b.extdata, extdata) + } return b } @@ -300,13 +324,22 @@ func (b *Block) DecodeRLP(s *rlp.Stream) error { } func (b *Block) SetExtraData(data []byte) { - b.extdata = data + if data != nil { + _data := make([]byte, len(data)) + b.extdata = &_data + copy(*b.extdata, data) + } else { + b.extdata = nil + } b.header.ExtDataHash = rlpHash(data) b.hash = atomic.Value{} } func (b *Block) ExtraData() []byte { - return b.extdata + if b.extdata == nil { + return nil + } + return *b.extdata } func (b *Block) SetVersion(ver uint32) { @@ -439,16 +472,21 @@ func (b *Block) WithSeal(header *Header) *Block { } // WithBody returns a new block with the given transaction and uncle contents. -func (b *Block) WithBody(transactions []*Transaction, uncles []*Header, version uint32, extdata []byte) *Block { +func (b *Block) WithBody(transactions []*Transaction, uncles []*Header, version uint32, extdata *[]byte) *Block { + var extdataCopied *[]byte + if extdata != nil { + _data := make([]byte, len(*extdata)) + extdataCopied = &_data + copy(*extdataCopied, *extdata) + } block := &Block{ header: CopyHeader(b.header), transactions: make([]*Transaction, len(transactions)), uncles: make([]*Header, len(uncles)), - extdata: make([]byte, len(extdata)), + extdata: extdataCopied, version: version, } copy(block.transactions, transactions) - copy(block.extdata, extdata) for i := range uncles { block.uncles[i] = CopyHeader(uncles[i]) } @@ -467,26 +505,3 @@ func (b *Block) Hash() common.Hash { } type Blocks []*Block - -type BlockBy func(b1, b2 *Block) bool - -func (self BlockBy) Sort(blocks Blocks) { - bs := blockSorter{ - blocks: blocks, - by: self, - } - sort.Sort(bs) -} - -type blockSorter struct { - blocks Blocks - by func(b1, b2 *Block) bool -} - -func (self blockSorter) Len() int { return len(self.blocks) } -func (self blockSorter) Swap(i, j int) { - self.blocks[i], self.blocks[j] = self.blocks[j], self.blocks[i] -} -func (self blockSorter) Less(i, j int) bool { return self.by(self.blocks[i], self.blocks[j]) } - -func Number(b1, b2 *Block) bool { return b1.header.Number.Cmp(b2.header.Number) < 0 } |