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author | Péter Szilágyi <peterke@gmail.com> | 2015-09-30 00:36:16 +0800 |
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committer | Péter Szilágyi <peterke@gmail.com> | 2015-10-19 15:03:09 +0800 |
commit | 42c8afd44006b170c20159abaadc31cc7545bec2 (patch) | |
tree | 49f150caef8b09d1584dc9635382b3938fee45e1 /core/types/receipt.go | |
parent | b99fe27f8b4d37fe3838d52b682e99c85098ee59 (diff) | |
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core: differentiate receipt concensus and storage decoding
Diffstat (limited to 'core/types/receipt.go')
-rw-r--r-- | core/types/receipt.go | 122 |
1 files changed, 74 insertions, 48 deletions
diff --git a/core/types/receipt.go b/core/types/receipt.go index bcb4bd8a5..d85fe16cf 100644 --- a/core/types/receipt.go +++ b/core/types/receipt.go @@ -17,7 +17,6 @@ package types import ( - "bytes" "fmt" "io" "math/big" @@ -27,89 +26,116 @@ import ( "github.com/ethereum/go-ethereum/rlp" ) +// Receipt represents the results of a transaction. type Receipt struct { + // Consensus fields PostState []byte CumulativeGasUsed *big.Int Bloom Bloom - TxHash common.Hash - ContractAddress common.Address - logs vm.Logs - GasUsed *big.Int + Logs vm.Logs + + // Implementation fields + TxHash common.Hash + ContractAddress common.Address + GasUsed *big.Int } +// NewReceipt creates a barebone transaction receipt, copying the init fields. func NewReceipt(root []byte, cumalativeGasUsed *big.Int) *Receipt { return &Receipt{PostState: common.CopyBytes(root), CumulativeGasUsed: new(big.Int).Set(cumalativeGasUsed)} } -func (self *Receipt) SetLogs(logs vm.Logs) { - self.logs = logs -} - -func (self *Receipt) Logs() vm.Logs { - return self.logs -} - -func (self *Receipt) EncodeRLP(w io.Writer) error { - return rlp.Encode(w, []interface{}{self.PostState, self.CumulativeGasUsed, self.Bloom, self.logs}) +// EncodeRLP implements rlp.Encoder, and flattens the consensus fields of a receipt +// into an RLP stream. +func (r *Receipt) EncodeRLP(w io.Writer) error { + return rlp.Encode(w, []interface{}{r.PostState, r.CumulativeGasUsed, r.Bloom, r.Logs}) } -func (self *Receipt) DecodeRLP(s *rlp.Stream) error { - var r struct { +// DecodeRLP implements rlp.Decoder, and loads the consensus fields of a receipt +// from an RLP stream. +func (r *Receipt) DecodeRLP(s *rlp.Stream) error { + var receipt struct { PostState []byte CumulativeGasUsed *big.Int Bloom Bloom - TxHash common.Hash - ContractAddress common.Address Logs vm.Logs - GasUsed *big.Int } - if err := s.Decode(&r); err != nil { + if err := s.Decode(&receipt); err != nil { return err } - self.PostState, self.CumulativeGasUsed, self.Bloom, self.TxHash, self.ContractAddress, self.logs, self.GasUsed = r.PostState, r.CumulativeGasUsed, r.Bloom, r.TxHash, r.ContractAddress, r.Logs, r.GasUsed - + r.PostState, r.CumulativeGasUsed, r.Bloom, r.Logs = receipt.PostState, receipt.CumulativeGasUsed, receipt.Bloom, receipt.Logs return nil } -type ReceiptForStorage Receipt - -func (self *ReceiptForStorage) EncodeRLP(w io.Writer) error { - storageLogs := make([]*vm.LogForStorage, len(self.logs)) - for i, log := range self.logs { - storageLogs[i] = (*vm.LogForStorage)(log) - } - return rlp.Encode(w, []interface{}{self.PostState, self.CumulativeGasUsed, self.Bloom, self.TxHash, self.ContractAddress, storageLogs, self.GasUsed}) -} - -func (self *Receipt) RlpEncode() []byte { - bytes, err := rlp.EncodeToBytes(self) +// RlpEncode implements common.RlpEncode required for SHA derivation. +func (r *Receipt) RlpEncode() []byte { + bytes, err := rlp.EncodeToBytes(r) if err != nil { - fmt.Println("TMP -- RECEIPT ENCODE ERROR", err) + panic(err) } return bytes } -func (self *Receipt) Cmp(other *Receipt) bool { - if bytes.Compare(self.PostState, other.PostState) != 0 { - return false - } +// String implements the Stringer interface. +func (r *Receipt) String() string { + return fmt.Sprintf("receipt{med=%x cgas=%v bloom=%x logs=%v}", r.PostState, r.CumulativeGasUsed, r.Bloom, r.Logs) +} - return true +// ReceiptForStorage is a wrapper around a Receipt that flattens and parses the +// entire content of a receipt, opposed to only the consensus fields originally. +type ReceiptForStorage Receipt + +// EncodeRLP implements rlp.Encoder, and flattens all content fields of a receipt +// into an RLP stream. +func (r *ReceiptForStorage) EncodeRLP(w io.Writer) error { + logs := make([]*vm.LogForStorage, len(r.Logs)) + for i, log := range r.Logs { + logs[i] = (*vm.LogForStorage)(log) + } + return rlp.Encode(w, []interface{}{r.PostState, r.CumulativeGasUsed, r.Bloom, r.TxHash, r.ContractAddress, logs, r.GasUsed}) } -func (self *Receipt) String() string { - return fmt.Sprintf("receipt{med=%x cgas=%v bloom=%x logs=%v}", self.PostState, self.CumulativeGasUsed, self.Bloom, self.logs) +// DecodeRLP implements rlp.Decoder, and loads the consensus fields of a receipt +// from an RLP stream. +func (r *ReceiptForStorage) DecodeRLP(s *rlp.Stream) error { + var receipt struct { + PostState []byte + CumulativeGasUsed *big.Int + Bloom Bloom + TxHash common.Hash + ContractAddress common.Address + Logs []*vm.LogForStorage + GasUsed *big.Int + } + if err := s.Decode(&receipt); err != nil { + return err + } + // Assign the consensus fields + r.PostState, r.CumulativeGasUsed, r.Bloom = receipt.PostState, receipt.CumulativeGasUsed, receipt.Bloom + r.Logs = make(vm.Logs, len(receipt.Logs)) + for i, log := range receipt.Logs { + r.Logs[i] = (*vm.Log)(log) + } + // Assign the implementation fields + r.TxHash, r.ContractAddress, r.GasUsed = receipt.TxHash, receipt.ContractAddress, receipt.GasUsed + + return nil } +// Receipts is a wrapper around a Receipt array to implement types.DerivableList. type Receipts []*Receipt -func (self Receipts) RlpEncode() []byte { - bytes, err := rlp.EncodeToBytes(self) +// RlpEncode implements common.RlpEncode required for SHA derivation. +func (r Receipts) RlpEncode() []byte { + bytes, err := rlp.EncodeToBytes(r) if err != nil { - fmt.Println("TMP -- RECEIPTS ENCODE ERROR", err) + panic(err) } return bytes } -func (self Receipts) Len() int { return len(self) } -func (self Receipts) GetRlp(i int) []byte { return common.Rlp(self[i]) } +// Len returns the number of receipts in this list. +func (r Receipts) Len() int { return len(r) } + +// GetRlp returns the RLP encoding of one receipt from the list. +func (r Receipts) GetRlp(i int) []byte { return common.Rlp(r[i]) } |