// EncodeRLP is a specialized encoder for hashOrNumber to encode only one of the
// two contained union fields.
func (hn *hashOrNumber) EncodeRLP(w io.Writer) error {
if hn.Hash == (common.Hash{}) {
return rlp.Encode(w, hn.Number)
}
if hn.Number != 0 {
return fmt.Errorf("both origin hash (%x) and number (%d) provided", hn.Hash, hn.Number)
}
return rlp.Encode(w, hn.Hash)
}
func (b *Block) EncodeRLP(w io.Writer) error {
return rlp.Encode(w, extblock{
Header: b.header,
Txs: b.transactions,
Uncles: b.uncles,
})
}
// 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 (tx *Transaction) Size() common.StorageSize {
if size := tx.size.Load(); size != nil {
return size.(common.StorageSize)
}
c := writeCounter(0)
rlp.Encode(&c, &tx.data)
tx.size.Store(common.StorageSize(c))
return common.StorageSize(c)
}
func (b *Block) Size() common.StorageSize {
if size := b.size.Load(); size != nil {
return size.(common.StorageSize)
}
c := writeCounter(0)
rlp.Encode(&c, b)
b.size.Store(common.StorageSize(c))
return common.StorageSize(c)
}
func DeriveSha(list DerivableList) common.Hash {
keybuf := new(bytes.Buffer)
trie := new(trie.Trie)
for i := 0; i < list.Len(); i++ {
keybuf.Reset()
rlp.Encode(keybuf, uint(i))
trie.Update(keybuf.Bytes(), list.GetRlp(i))
}
return trie.Hash()
}
func encodePacket(priv *ecdsa.PrivateKey, ptype byte, req interface{}) ([]byte, error) {
b := new(bytes.Buffer)
b.Write(headSpace)
b.WriteByte(ptype)
if err := rlp.Encode(b, req); err != nil {
glog.V(logger.Error).Infoln("error encoding packet:", err)
return nil, err
}
packet := b.Bytes()
sig, err := crypto.Sign(crypto.Sha3(packet[headSize:]), priv)
if err != nil {
glog.V(logger.Error).Infoln("could not sign packet:", err)
return nil, err
}
copy(packet[macSize:], sig)
// add the hash to the front. Note: this doesn't protect the
// packet in any way. Our public key will be part of this hash in
// The future.
copy(packet, crypto.Sha3(packet[macSize:]))
return packet, nil
}
func (h *hasher) store(n node, db DatabaseWriter, force bool) (node, error) {
// Don't store hashes or empty nodes.
if _, isHash := n.(hashNode); n == nil || isHash {
return n, nil
}
h.tmp.Reset()
if err := rlp.Encode(h.tmp, n); err != nil {
panic("encode error: " + err.Error())
}
if h.tmp.Len() < 32 && !force {
// Nodes smaller than 32 bytes are stored inside their parent.
return n, nil
}
// Larger nodes are replaced by their hash and stored in the database.
h.sha.Reset()
h.sha.Write(h.tmp.Bytes())
key := hashNode(h.sha.Sum(nil))
if db != nil {
err := db.Put(key, h.tmp.Bytes())
return key, err
}
return key, nil
}
func (l *Log) EncodeRLP(w io.Writer) error {
return rlp.Encode(w, []interface{}{l.Address, l.Topics, l.Data})
}
func (tx *Transaction) EncodeRLP(w io.Writer) error {
return rlp.Encode(w, &tx.data)
}
func rlpHash(x interface{}) (h common.Hash) {
hw := sha3.NewKeccak256()
rlp.Encode(hw, x)
hw.Sum(h[:0])
return h
}
// EncodeRLP implements rlp.Encoder.
func (c *StateObject) EncodeRLP(w io.Writer) error {
return rlp.Encode(w, []interface{}{c.nonce, c.balance, c.Root(), c.codeHash})
}
// 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})
}