forked from cerc-io/plugeth
trie: use stacktrie for Derivesha operation (#21407)
core/types: use stacktrie for derivesha trie: add stacktrie file trie: fix linter core/types: use stacktrie for derivesha rebased: adapt stacktrie to the newer version of DeriveSha Co-authored-by: Martin Holst Swende <martin@swende.se> More linter fixes review feedback: no key offset for nodes converted to hashes trie: use EncodeRLP for full nodes core/types: insert txs in order in derivesha trie: tests for derivesha with stacktrie trie: make stacktrie use pooled hashers trie: make stacktrie reuse tmp slice space trie: minor polishes on stacktrie trie/stacktrie: less rlp dancing core/types: explain the contorsions in DeriveSha ci: fix goimport errors trie: clear mem on subtrie hashing squashme: linter fix stracktrie: use pooling, less allocs (#3) trie: in-place hex prefix, reduce allocs and add rawNode.EncodeRLP Reintroduce the `[]node` method, add the missing `EncodeRLP` implementation for `rawNode` and calculate the hex prefix in place. Co-authored-by: Martin Holst Swende <martin@swende.se> Co-authored-by: Martin Holst Swende <martin@swende.se>
This commit is contained in:
Guillaume Ballet
GitHub
parent
4ee11b072e
commit
6c8310ebb4
@ -62,7 +62,7 @@ func (v *BlockValidator) ValidateBody(block *types.Block) error {
|
||||
if hash := types.CalcUncleHash(block.Uncles()); hash != header.UncleHash {
|
||||
return fmt.Errorf("uncle root hash mismatch: have %x, want %x", hash, header.UncleHash)
|
||||
}
|
||||
if hash := types.DeriveSha(block.Transactions(), new(trie.Trie)); hash != header.TxHash {
|
||||
if hash := types.DeriveSha(block.Transactions(), trie.NewStackTrie(nil)); hash != header.TxHash {
|
||||
return fmt.Errorf("transaction root hash mismatch: have %x, want %x", hash, header.TxHash)
|
||||
}
|
||||
if !v.bc.HasBlockAndState(block.ParentHash(), block.NumberU64()-1) {
|
||||
@ -90,7 +90,7 @@ func (v *BlockValidator) ValidateState(block *types.Block, statedb *state.StateD
|
||||
return fmt.Errorf("invalid bloom (remote: %x local: %x)", header.Bloom, rbloom)
|
||||
}
|
||||
// Tre receipt Trie's root (R = (Tr [[H1, R1], ... [Hn, Rn]]))
|
||||
receiptSha := types.DeriveSha(receipts, new(trie.Trie))
|
||||
receiptSha := types.DeriveSha(receipts, trie.NewStackTrie(nil))
|
||||
if receiptSha != header.ReceiptHash {
|
||||
return fmt.Errorf("invalid receipt root hash (remote: %x local: %x)", header.ReceiptHash, receiptSha)
|
||||
}
|
||||
|
||||
@ -23,7 +23,6 @@ import (
|
||||
"github.com/ethereum/go-ethereum/rlp"
|
||||
)
|
||||
|
||||
// DerivableList is the interface which can derive the hash.
|
||||
type DerivableList interface {
|
||||
Len() int
|
||||
GetRlp(i int) []byte
|
||||
@ -39,7 +38,22 @@ type Hasher interface {
|
||||
func DeriveSha(list DerivableList, hasher Hasher) common.Hash {
|
||||
hasher.Reset()
|
||||
keybuf := new(bytes.Buffer)
|
||||
for i := 0; i < list.Len(); i++ {
|
||||
|
||||
// StackTrie requires values to be inserted in increasing
|
||||
// hash order, which is not the order that `list` provides
|
||||
// hashes in. This insertion sequence ensures that the
|
||||
// order is correct.
|
||||
for i := 1; i < list.Len() && i <= 0x7f; i++ {
|
||||
keybuf.Reset()
|
||||
rlp.Encode(keybuf, uint(i))
|
||||
hasher.Update(keybuf.Bytes(), list.GetRlp(i))
|
||||
}
|
||||
if list.Len() > 0 {
|
||||
keybuf.Reset()
|
||||
rlp.Encode(keybuf, uint(0))
|
||||
hasher.Update(keybuf.Bytes(), list.GetRlp(0))
|
||||
}
|
||||
for i := 0x80; i < list.Len(); i++ {
|
||||
keybuf.Reset()
|
||||
rlp.Encode(keybuf, uint(i))
|
||||
hasher.Update(keybuf.Bytes(), list.GetRlp(i))
|
||||
|
||||
@ -774,7 +774,7 @@ func (q *queue) DeliverBodies(id string, txLists [][]*types.Transaction, uncleLi
|
||||
q.lock.Lock()
|
||||
defer q.lock.Unlock()
|
||||
validate := func(index int, header *types.Header) error {
|
||||
if types.DeriveSha(types.Transactions(txLists[index]), new(trie.Trie)) != header.TxHash {
|
||||
if types.DeriveSha(types.Transactions(txLists[index]), trie.NewStackTrie(nil)) != header.TxHash {
|
||||
return errInvalidBody
|
||||
}
|
||||
if types.CalcUncleHash(uncleLists[index]) != header.UncleHash {
|
||||
@ -799,7 +799,7 @@ func (q *queue) DeliverReceipts(id string, receiptList [][]*types.Receipt) (int,
|
||||
q.lock.Lock()
|
||||
defer q.lock.Unlock()
|
||||
validate := func(index int, header *types.Header) error {
|
||||
if types.DeriveSha(types.Receipts(receiptList[index]), new(trie.Trie)) != header.ReceiptHash {
|
||||
if types.DeriveSha(types.Receipts(receiptList[index]), trie.NewStackTrie(nil)) != header.ReceiptHash {
|
||||
return errInvalidReceipt
|
||||
}
|
||||
return nil
|
||||
|
||||
@ -715,7 +715,7 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
|
||||
log.Warn("Propagated block has invalid uncles", "have", hash, "exp", request.Block.UncleHash())
|
||||
break // TODO(karalabe): return error eventually, but wait a few releases
|
||||
}
|
||||
if hash := types.DeriveSha(request.Block.Transactions(), new(trie.Trie)); hash != request.Block.TxHash() {
|
||||
if hash := types.DeriveSha(request.Block.Transactions(), trie.NewStackTrie(nil)); hash != request.Block.TxHash() {
|
||||
log.Warn("Propagated block has invalid body", "have", hash, "exp", request.Block.TxHash())
|
||||
break // TODO(karalabe): return error eventually, but wait a few releases
|
||||
}
|
||||
|
||||
@ -99,6 +99,11 @@ type rawNode []byte
|
||||
func (n rawNode) cache() (hashNode, bool) { panic("this should never end up in a live trie") }
|
||||
func (n rawNode) fstring(ind string) string { panic("this should never end up in a live trie") }
|
||||
|
||||
func (n rawNode) EncodeRLP(w io.Writer) error {
|
||||
_, err := w.Write([]byte(n))
|
||||
return err
|
||||
}
|
||||
|
||||
// rawFullNode represents only the useful data content of a full node, with the
|
||||
// caches and flags stripped out to minimize its data storage. This type honors
|
||||
// the same RLP encoding as the original parent.
|
||||
@ -199,7 +204,7 @@ func forGatherChildren(n node, onChild func(hash common.Hash)) {
|
||||
}
|
||||
case hashNode:
|
||||
onChild(common.BytesToHash(n))
|
||||
case valueNode, nil:
|
||||
case valueNode, nil, rawNode:
|
||||
default:
|
||||
panic(fmt.Sprintf("unknown node type: %T", n))
|
||||
}
|
||||
|
||||
@ -51,6 +51,35 @@ func hexToCompact(hex []byte) []byte {
|
||||
return buf
|
||||
}
|
||||
|
||||
// hexToCompactInPlace places the compact key in input buffer, returning the length
|
||||
// needed for the representation
|
||||
func hexToCompactInPlace(hex []byte) int {
|
||||
var (
|
||||
hexLen = len(hex) // length of the hex input
|
||||
firstByte = byte(0)
|
||||
)
|
||||
// Check if we have a terminator there
|
||||
if hexLen > 0 && hex[hexLen-1] == 16 {
|
||||
firstByte = 1 << 5
|
||||
hexLen-- // last part was the terminator, ignore that
|
||||
}
|
||||
var (
|
||||
binLen = hexLen/2 + 1
|
||||
ni = 0 // index in hex
|
||||
bi = 1 // index in bin (compact)
|
||||
)
|
||||
if hexLen&1 == 1 {
|
||||
firstByte |= 1 << 4 // odd flag
|
||||
firstByte |= hex[0] // first nibble is contained in the first byte
|
||||
ni++
|
||||
}
|
||||
for ; ni < hexLen; bi, ni = bi+1, ni+2 {
|
||||
hex[bi] = hex[ni]<<4 | hex[ni+1]
|
||||
}
|
||||
hex[0] = firstByte
|
||||
return binLen
|
||||
}
|
||||
|
||||
func compactToHex(compact []byte) []byte {
|
||||
if len(compact) == 0 {
|
||||
return compact
|
||||
|
||||
@ -18,6 +18,8 @@ package trie
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"encoding/hex"
|
||||
"math/rand"
|
||||
"testing"
|
||||
)
|
||||
|
||||
@ -75,6 +77,40 @@ func TestHexKeybytes(t *testing.T) {
|
||||
}
|
||||
}
|
||||
|
||||
func TestHexToCompactInPlace(t *testing.T) {
|
||||
for i, keyS := range []string{
|
||||
"00",
|
||||
"060a040c0f000a090b040803010801010900080d090a0a0d0903000b10",
|
||||
"10",
|
||||
} {
|
||||
hexBytes, _ := hex.DecodeString(keyS)
|
||||
exp := hexToCompact(hexBytes)
|
||||
sz := hexToCompactInPlace(hexBytes)
|
||||
got := hexBytes[:sz]
|
||||
if !bytes.Equal(exp, got) {
|
||||
t.Fatalf("test %d: encoding err\ninp %v\ngot %x\nexp %x\n", i, keyS, got, exp)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestHexToCompactInPlaceRandom(t *testing.T) {
|
||||
for i := 0; i < 10000; i++ {
|
||||
l := rand.Intn(128)
|
||||
key := make([]byte, l)
|
||||
rand.Read(key)
|
||||
hexBytes := keybytesToHex(key)
|
||||
hexOrig := []byte(string(hexBytes))
|
||||
exp := hexToCompact(hexBytes)
|
||||
sz := hexToCompactInPlace(hexBytes)
|
||||
got := hexBytes[:sz]
|
||||
|
||||
if !bytes.Equal(exp, got) {
|
||||
t.Fatalf("encoding err \ncpt %x\nhex %x\ngot %x\nexp %x\n",
|
||||
key, hexOrig, got, exp)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func BenchmarkHexToCompact(b *testing.B) {
|
||||
testBytes := []byte{0, 15, 1, 12, 11, 8, 16 /*term*/}
|
||||
for i := 0; i < b.N; i++ {
|
||||
|
||||
404
trie/stacktrie.go
Normal file
404
trie/stacktrie.go
Normal file
@ -0,0 +1,404 @@
|
||||
// Copyright 2020 The go-ethereum Authors
|
||||
// This file is part of the go-ethereum library.
|
||||
//
|
||||
// The go-ethereum library is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU Lesser General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// The go-ethereum library is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU Lesser General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU Lesser General Public License
|
||||
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
package trie
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"sync"
|
||||
|
||||
"github.com/ethereum/go-ethereum/common"
|
||||
"github.com/ethereum/go-ethereum/ethdb"
|
||||
"github.com/ethereum/go-ethereum/log"
|
||||
"github.com/ethereum/go-ethereum/rlp"
|
||||
)
|
||||
|
||||
var stPool = sync.Pool{
|
||||
New: func() interface{} {
|
||||
return NewStackTrie(nil)
|
||||
},
|
||||
}
|
||||
|
||||
func stackTrieFromPool(db ethdb.KeyValueStore) *StackTrie {
|
||||
st := stPool.Get().(*StackTrie)
|
||||
st.db = db
|
||||
return st
|
||||
}
|
||||
|
||||
func returnToPool(st *StackTrie) {
|
||||
st.Reset()
|
||||
stPool.Put(st)
|
||||
}
|
||||
|
||||
// StackTrie is a trie implementation that expects keys to be inserted
|
||||
// in order. Once it determines that a subtree will no longer be inserted
|
||||
// into, it will hash it and free up the memory it uses.
|
||||
type StackTrie struct {
|
||||
nodeType uint8 // node type (as in branch, ext, leaf)
|
||||
val []byte // value contained by this node if it's a leaf
|
||||
key []byte // key chunk covered by this (full|ext) node
|
||||
keyOffset int // offset of the key chunk inside a full key
|
||||
children [16]*StackTrie // list of children (for fullnodes and exts)
|
||||
|
||||
db ethdb.KeyValueStore // Pointer to the commit db, can be nil
|
||||
}
|
||||
|
||||
// NewStackTrie allocates and initializes an empty trie.
|
||||
func NewStackTrie(db ethdb.KeyValueStore) *StackTrie {
|
||||
return &StackTrie{
|
||||
nodeType: emptyNode,
|
||||
db: db,
|
||||
}
|
||||
}
|
||||
|
||||
func newLeaf(ko int, key, val []byte, db ethdb.KeyValueStore) *StackTrie {
|
||||
st := stackTrieFromPool(db)
|
||||
st.nodeType = leafNode
|
||||
st.keyOffset = ko
|
||||
st.key = append(st.key, key[ko:]...)
|
||||
st.val = val
|
||||
return st
|
||||
}
|
||||
|
||||
func newExt(ko int, key []byte, child *StackTrie, db ethdb.KeyValueStore) *StackTrie {
|
||||
st := stackTrieFromPool(db)
|
||||
st.nodeType = extNode
|
||||
st.keyOffset = ko
|
||||
st.key = append(st.key, key[ko:]...)
|
||||
st.children[0] = child
|
||||
return st
|
||||
}
|
||||
|
||||
// List all values that StackTrie#nodeType can hold
|
||||
const (
|
||||
emptyNode = iota
|
||||
branchNode
|
||||
extNode
|
||||
leafNode
|
||||
hashedNode
|
||||
)
|
||||
|
||||
// TryUpdate inserts a (key, value) pair into the stack trie
|
||||
func (st *StackTrie) TryUpdate(key, value []byte) error {
|
||||
k := keybytesToHex(key)
|
||||
if len(value) == 0 {
|
||||
panic("deletion not supported")
|
||||
}
|
||||
st.insert(k[:len(k)-1], value)
|
||||
return nil
|
||||
}
|
||||
|
||||
func (st *StackTrie) Update(key, value []byte) {
|
||||
if err := st.TryUpdate(key, value); err != nil {
|
||||
log.Error(fmt.Sprintf("Unhandled trie error: %v", err))
|
||||
}
|
||||
}
|
||||
|
||||
func (st *StackTrie) Reset() {
|
||||
st.db = nil
|
||||
st.key = st.key[:0]
|
||||
st.val = st.val[:0]
|
||||
for i := range st.children {
|
||||
st.children[i] = nil
|
||||
}
|
||||
st.nodeType = emptyNode
|
||||
st.keyOffset = 0
|
||||
}
|
||||
|
||||
// Helper function that, given a full key, determines the index
|
||||
// at which the chunk pointed by st.keyOffset is different from
|
||||
// the same chunk in the full key.
|
||||
func (st *StackTrie) getDiffIndex(key []byte) int {
|
||||
diffindex := 0
|
||||
for ; diffindex < len(st.key) && st.key[diffindex] == key[st.keyOffset+diffindex]; diffindex++ {
|
||||
}
|
||||
return diffindex
|
||||
}
|
||||
|
||||
// Helper function to that inserts a (key, value) pair into
|
||||
// the trie.
|
||||
func (st *StackTrie) insert(key, value []byte) {
|
||||
switch st.nodeType {
|
||||
case branchNode: /* Branch */
|
||||
idx := int(key[st.keyOffset])
|
||||
// Unresolve elder siblings
|
||||
for i := idx - 1; i >= 0; i-- {
|
||||
if st.children[i] != nil {
|
||||
if st.children[i].nodeType != hashedNode {
|
||||
st.children[i].hash()
|
||||
}
|
||||
break
|
||||
}
|
||||
}
|
||||
// Add new child
|
||||
if st.children[idx] == nil {
|
||||
st.children[idx] = stackTrieFromPool(st.db)
|
||||
st.children[idx].keyOffset = st.keyOffset + 1
|
||||
}
|
||||
st.children[idx].insert(key, value)
|
||||
case extNode: /* Ext */
|
||||
// Compare both key chunks and see where they differ
|
||||
diffidx := st.getDiffIndex(key)
|
||||
|
||||
// Check if chunks are identical. If so, recurse into
|
||||
// the child node. Otherwise, the key has to be split
|
||||
// into 1) an optional common prefix, 2) the fullnode
|
||||
// representing the two differing path, and 3) a leaf
|
||||
// for each of the differentiated subtrees.
|
||||
if diffidx == len(st.key) {
|
||||
// Ext key and key segment are identical, recurse into
|
||||
// the child node.
|
||||
st.children[0].insert(key, value)
|
||||
return
|
||||
}
|
||||
// Save the original part. Depending if the break is
|
||||
// at the extension's last byte or not, create an
|
||||
// intermediate extension or use the extension's child
|
||||
// node directly.
|
||||
var n *StackTrie
|
||||
if diffidx < len(st.key)-1 {
|
||||
n = newExt(diffidx+1, st.key, st.children[0], st.db)
|
||||
} else {
|
||||
// Break on the last byte, no need to insert
|
||||
// an extension node: reuse the current node
|
||||
n = st.children[0]
|
||||
}
|
||||
// Convert to hash
|
||||
n.hash()
|
||||
var p *StackTrie
|
||||
if diffidx == 0 {
|
||||
// the break is on the first byte, so
|
||||
// the current node is converted into
|
||||
// a branch node.
|
||||
st.children[0] = nil
|
||||
p = st
|
||||
st.nodeType = branchNode
|
||||
} else {
|
||||
// the common prefix is at least one byte
|
||||
// long, insert a new intermediate branch
|
||||
// node.
|
||||
st.children[0] = stackTrieFromPool(st.db)
|
||||
st.children[0].nodeType = branchNode
|
||||
st.children[0].keyOffset = st.keyOffset + diffidx
|
||||
p = st.children[0]
|
||||
}
|
||||
// Create a leaf for the inserted part
|
||||
o := newLeaf(st.keyOffset+diffidx+1, key, value, st.db)
|
||||
|
||||
// Insert both child leaves where they belong:
|
||||
origIdx := st.key[diffidx]
|
||||
newIdx := key[diffidx+st.keyOffset]
|
||||
p.children[origIdx] = n
|
||||
p.children[newIdx] = o
|
||||
st.key = st.key[:diffidx]
|
||||
|
||||
case leafNode: /* Leaf */
|
||||
// Compare both key chunks and see where they differ
|
||||
diffidx := st.getDiffIndex(key)
|
||||
|
||||
// Overwriting a key isn't supported, which means that
|
||||
// the current leaf is expected to be split into 1) an
|
||||
// optional extension for the common prefix of these 2
|
||||
// keys, 2) a fullnode selecting the path on which the
|
||||
// keys differ, and 3) one leaf for the differentiated
|
||||
// component of each key.
|
||||
if diffidx >= len(st.key) {
|
||||
panic("Trying to insert into existing key")
|
||||
}
|
||||
|
||||
// Check if the split occurs at the first nibble of the
|
||||
// chunk. In that case, no prefix extnode is necessary.
|
||||
// Otherwise, create that
|
||||
var p *StackTrie
|
||||
if diffidx == 0 {
|
||||
// Convert current leaf into a branch
|
||||
st.nodeType = branchNode
|
||||
p = st
|
||||
st.children[0] = nil
|
||||
} else {
|
||||
// Convert current node into an ext,
|
||||
// and insert a child branch node.
|
||||
st.nodeType = extNode
|
||||
st.children[0] = NewStackTrie(st.db)
|
||||
st.children[0].nodeType = branchNode
|
||||
st.children[0].keyOffset = st.keyOffset + diffidx
|
||||
p = st.children[0]
|
||||
}
|
||||
|
||||
// Create the two child leaves: the one containing the
|
||||
// original value and the one containing the new value
|
||||
// The child leave will be hashed directly in order to
|
||||
// free up some memory.
|
||||
origIdx := st.key[diffidx]
|
||||
p.children[origIdx] = newLeaf(diffidx+1, st.key, st.val, st.db)
|
||||
p.children[origIdx].hash()
|
||||
|
||||
newIdx := key[diffidx+st.keyOffset]
|
||||
p.children[newIdx] = newLeaf(p.keyOffset+1, key, value, st.db)
|
||||
|
||||
// Finally, cut off the key part that has been passed
|
||||
// over to the children.
|
||||
st.key = st.key[:diffidx]
|
||||
st.val = nil
|
||||
case emptyNode: /* Empty */
|
||||
st.nodeType = leafNode
|
||||
st.key = key[st.keyOffset:]
|
||||
st.val = value
|
||||
case hashedNode:
|
||||
panic("trying to insert into hash")
|
||||
default:
|
||||
panic("invalid type")
|
||||
}
|
||||
}
|
||||
|
||||
// hash() hashes the node 'st' and converts it into 'hashedNode', if possible.
|
||||
// Possible outcomes:
|
||||
// 1. The rlp-encoded value was >= 32 bytes:
|
||||
// - Then the 32-byte `hash` will be accessible in `st.val`.
|
||||
// - And the 'st.type' will be 'hashedNode'
|
||||
// 2. The rlp-encoded value was < 32 bytes
|
||||
// - Then the <32 byte rlp-encoded value will be accessible in 'st.val'.
|
||||
// - And the 'st.type' will be 'hashedNode' AGAIN
|
||||
//
|
||||
// This method will also:
|
||||
// set 'st.type' to hashedNode
|
||||
// clear 'st.key'
|
||||
func (st *StackTrie) hash() {
|
||||
/* Shortcut if node is already hashed */
|
||||
if st.nodeType == hashedNode {
|
||||
return
|
||||
}
|
||||
// The 'hasher' is taken from a pool, but we don't actually
|
||||
// claim an instance until all children are done with their hashing,
|
||||
// and we actually need one
|
||||
var h *hasher
|
||||
|
||||
switch st.nodeType {
|
||||
case branchNode:
|
||||
var nodes [17]node
|
||||
for i, child := range st.children {
|
||||
if child == nil {
|
||||
nodes[i] = nilValueNode
|
||||
continue
|
||||
}
|
||||
child.hash()
|
||||
if len(child.val) < 32 {
|
||||
nodes[i] = rawNode(child.val)
|
||||
} else {
|
||||
nodes[i] = hashNode(child.val)
|
||||
}
|
||||
st.children[i] = nil // Reclaim mem from subtree
|
||||
returnToPool(child)
|
||||
}
|
||||
nodes[16] = nilValueNode
|
||||
h = newHasher(false)
|
||||
defer returnHasherToPool(h)
|
||||
h.tmp.Reset()
|
||||
if err := rlp.Encode(&h.tmp, nodes); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
case extNode:
|
||||
h = newHasher(false)
|
||||
defer returnHasherToPool(h)
|
||||
h.tmp.Reset()
|
||||
st.children[0].hash()
|
||||
// This is also possible:
|
||||
//sz := hexToCompactInPlace(st.key)
|
||||
//n := [][]byte{
|
||||
// st.key[:sz],
|
||||
// st.children[0].val,
|
||||
//}
|
||||
n := [][]byte{
|
||||
hexToCompact(st.key),
|
||||
st.children[0].val,
|
||||
}
|
||||
if err := rlp.Encode(&h.tmp, n); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
returnToPool(st.children[0])
|
||||
st.children[0] = nil // Reclaim mem from subtree
|
||||
case leafNode:
|
||||
h = newHasher(false)
|
||||
defer returnHasherToPool(h)
|
||||
h.tmp.Reset()
|
||||
st.key = append(st.key, byte(16))
|
||||
sz := hexToCompactInPlace(st.key)
|
||||
n := [][]byte{st.key[:sz], st.val}
|
||||
if err := rlp.Encode(&h.tmp, n); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
case emptyNode:
|
||||
st.val = st.val[:0]
|
||||
st.val = append(st.val, emptyRoot[:]...)
|
||||
st.key = st.key[:0]
|
||||
st.nodeType = hashedNode
|
||||
return
|
||||
default:
|
||||
panic("Invalid node type")
|
||||
}
|
||||
st.key = st.key[:0]
|
||||
st.nodeType = hashedNode
|
||||
if len(h.tmp) < 32 {
|
||||
st.val = st.val[:0]
|
||||
st.val = append(st.val, h.tmp...)
|
||||
return
|
||||
}
|
||||
// Going to write the hash to the 'val'. Need to ensure it's properly sized first
|
||||
// Typically, 'branchNode's will have no 'val', and require this allocation
|
||||
if required := 32 - len(st.val); required > 0 {
|
||||
buf := make([]byte, required)
|
||||
st.val = append(st.val, buf...)
|
||||
}
|
||||
st.val = st.val[:32]
|
||||
h.sha.Reset()
|
||||
h.sha.Write(h.tmp)
|
||||
h.sha.Read(st.val)
|
||||
if st.db != nil {
|
||||
// TODO! Is it safe to Put the slice here?
|
||||
// Do all db implementations copy the value provided?
|
||||
st.db.Put(st.val, h.tmp)
|
||||
}
|
||||
}
|
||||
|
||||
// Hash returns the hash of the current node
|
||||
func (st *StackTrie) Hash() (h common.Hash) {
|
||||
st.hash()
|
||||
if len(st.val) != 32 {
|
||||
// If the node's RLP isn't 32 bytes long, the node will not
|
||||
// be hashed, and instead contain the rlp-encoding of the
|
||||
// node. For the top level node, we need to force the hashing.
|
||||
ret := make([]byte, 32)
|
||||
h := newHasher(false)
|
||||
defer returnHasherToPool(h)
|
||||
h.sha.Reset()
|
||||
h.sha.Write(st.val)
|
||||
h.sha.Read(ret)
|
||||
return common.BytesToHash(ret)
|
||||
}
|
||||
return common.BytesToHash(st.val)
|
||||
}
|
||||
|
||||
// Commit will commit the current node to database db
|
||||
func (st *StackTrie) Commit(db ethdb.KeyValueStore) common.Hash {
|
||||
oldDb := st.db
|
||||
st.db = db
|
||||
defer func() {
|
||||
st.db = oldDb
|
||||
}()
|
||||
st.hash()
|
||||
h := common.BytesToHash(st.val)
|
||||
return h
|
||||
}
|
||||
242
trie/stacktrie_test.go
Normal file
242
trie/stacktrie_test.go
Normal file
@ -0,0 +1,242 @@
|
||||
package trie
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"math/big"
|
||||
mrand "math/rand"
|
||||
"testing"
|
||||
|
||||
"github.com/ethereum/go-ethereum/common"
|
||||
"github.com/ethereum/go-ethereum/common/hexutil"
|
||||
"github.com/ethereum/go-ethereum/core/types"
|
||||
"github.com/ethereum/go-ethereum/crypto"
|
||||
"github.com/ethereum/go-ethereum/ethdb/memorydb"
|
||||
)
|
||||
|
||||
func TestSizeBug(t *testing.T) {
|
||||
st := NewStackTrie(nil)
|
||||
nt, _ := New(common.Hash{}, NewDatabase(memorydb.New()))
|
||||
|
||||
leaf := common.FromHex("290decd9548b62a8d60345a988386fc84ba6bc95484008f6362f93160ef3e563")
|
||||
value := common.FromHex("94cf40d0d2b44f2b66e07cace1372ca42b73cf21a3")
|
||||
|
||||
nt.TryUpdate(leaf, value)
|
||||
st.TryUpdate(leaf, value)
|
||||
|
||||
if nt.Hash() != st.Hash() {
|
||||
t.Fatalf("error %x != %x", st.Hash(), nt.Hash())
|
||||
}
|
||||
}
|
||||
|
||||
func TestEmptyBug(t *testing.T) {
|
||||
st := NewStackTrie(nil)
|
||||
nt, _ := New(common.Hash{}, NewDatabase(memorydb.New()))
|
||||
|
||||
//leaf := common.FromHex("290decd9548b62a8d60345a988386fc84ba6bc95484008f6362f93160ef3e563")
|
||||
//value := common.FromHex("94cf40d0d2b44f2b66e07cace1372ca42b73cf21a3")
|
||||
kvs := []struct {
|
||||
K string
|
||||
V string
|
||||
}{
|
||||
{K: "405787fa12a823e0f2b7631cc41b3ba8828b3321ca811111fa75cd3aa3bb5ace", V: "9496f4ec2bf9dab484cac6be589e8417d84781be08"},
|
||||
{K: "40edb63a35fcf86c08022722aa3287cdd36440d671b4918131b2514795fefa9c", V: "01"},
|
||||
{K: "b10e2d527612073b26eecdfd717e6a320cf44b4afac2b0732d9fcbe2b7fa0cf6", V: "947a30f7736e48d6599356464ba4c150d8da0302ff"},
|
||||
{K: "c2575a0e9e593c00f959f8c92f12db2869c3395a3b0502d05e2516446f71f85b", V: "02"},
|
||||
}
|
||||
|
||||
for _, kv := range kvs {
|
||||
nt.TryUpdate(common.FromHex(kv.K), common.FromHex(kv.V))
|
||||
st.TryUpdate(common.FromHex(kv.K), common.FromHex(kv.V))
|
||||
}
|
||||
|
||||
if nt.Hash() != st.Hash() {
|
||||
t.Fatalf("error %x != %x", st.Hash(), nt.Hash())
|
||||
}
|
||||
}
|
||||
|
||||
func TestValLength56(t *testing.T) {
|
||||
st := NewStackTrie(nil)
|
||||
nt, _ := New(common.Hash{}, NewDatabase(memorydb.New()))
|
||||
|
||||
//leaf := common.FromHex("290decd9548b62a8d60345a988386fc84ba6bc95484008f6362f93160ef3e563")
|
||||
//value := common.FromHex("94cf40d0d2b44f2b66e07cace1372ca42b73cf21a3")
|
||||
kvs := []struct {
|
||||
K string
|
||||
V string
|
||||
}{
|
||||
{K: "405787fa12a823e0f2b7631cc41b3ba8828b3321ca811111fa75cd3aa3bb5ace", V: "1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111"},
|
||||
}
|
||||
|
||||
for _, kv := range kvs {
|
||||
nt.TryUpdate(common.FromHex(kv.K), common.FromHex(kv.V))
|
||||
st.TryUpdate(common.FromHex(kv.K), common.FromHex(kv.V))
|
||||
}
|
||||
|
||||
if nt.Hash() != st.Hash() {
|
||||
t.Fatalf("error %x != %x", st.Hash(), nt.Hash())
|
||||
}
|
||||
}
|
||||
|
||||
func genTxs(num uint64) (types.Transactions, error) {
|
||||
key, err := crypto.HexToECDSA("deadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef")
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
var addr = crypto.PubkeyToAddress(key.PublicKey)
|
||||
newTx := func(i uint64) (*types.Transaction, error) {
|
||||
signer := types.NewEIP155Signer(big.NewInt(18))
|
||||
tx, err := types.SignTx(types.NewTransaction(i, addr, new(big.Int), 0, new(big.Int).SetUint64(10000000), nil), signer, key)
|
||||
return tx, err
|
||||
}
|
||||
var txs types.Transactions
|
||||
for i := uint64(0); i < num; i++ {
|
||||
tx, err := newTx(i)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
txs = append(txs, tx)
|
||||
}
|
||||
return txs, nil
|
||||
}
|
||||
|
||||
func TestDeriveSha(t *testing.T) {
|
||||
txs, err := genTxs(0)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
for len(txs) < 1000 {
|
||||
exp := types.DeriveSha(txs, newEmpty())
|
||||
got := types.DeriveSha(txs, NewStackTrie(nil))
|
||||
if !bytes.Equal(got[:], exp[:]) {
|
||||
t.Fatalf("%d txs: got %x exp %x", len(txs), got, exp)
|
||||
}
|
||||
newTxs, err := genTxs(uint64(len(txs) + 1))
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
txs = append(txs, newTxs...)
|
||||
}
|
||||
}
|
||||
|
||||
func BenchmarkDeriveSha200(b *testing.B) {
|
||||
txs, err := genTxs(200)
|
||||
if err != nil {
|
||||
b.Fatal(err)
|
||||
}
|
||||
var exp common.Hash
|
||||
var got common.Hash
|
||||
b.Run("std_trie", func(b *testing.B) {
|
||||
b.ResetTimer()
|
||||
b.ReportAllocs()
|
||||
for i := 0; i < b.N; i++ {
|
||||
exp = types.DeriveSha(txs, newEmpty())
|
||||
}
|
||||
})
|
||||
|
||||
b.Run("stack_trie", func(b *testing.B) {
|
||||
b.ResetTimer()
|
||||
b.ReportAllocs()
|
||||
for i := 0; i < b.N; i++ {
|
||||
got = types.DeriveSha(txs, NewStackTrie(nil))
|
||||
}
|
||||
})
|
||||
if got != exp {
|
||||
b.Errorf("got %x exp %x", got, exp)
|
||||
}
|
||||
}
|
||||
|
||||
type dummyDerivableList struct {
|
||||
len int
|
||||
seed int
|
||||
}
|
||||
|
||||
func newDummy(seed int) *dummyDerivableList {
|
||||
d := &dummyDerivableList{}
|
||||
src := mrand.NewSource(int64(seed))
|
||||
// don't use lists longer than 4K items
|
||||
d.len = int(src.Int63() & 0x0FFF)
|
||||
d.seed = seed
|
||||
return d
|
||||
}
|
||||
|
||||
func (d *dummyDerivableList) Len() int {
|
||||
return d.len
|
||||
}
|
||||
|
||||
func (d *dummyDerivableList) GetRlp(i int) []byte {
|
||||
src := mrand.NewSource(int64(d.seed + i))
|
||||
// max item size 256, at least 1 byte per item
|
||||
size := 1 + src.Int63()&0x00FF
|
||||
data := make([]byte, size)
|
||||
_, err := mrand.New(src).Read(data)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return data
|
||||
}
|
||||
|
||||
func printList(l types.DerivableList) {
|
||||
fmt.Printf("list length: %d\n", l.Len())
|
||||
fmt.Printf("{\n")
|
||||
for i := 0; i < l.Len(); i++ {
|
||||
v := l.GetRlp(i)
|
||||
fmt.Printf("\"0x%x\",\n", v)
|
||||
}
|
||||
fmt.Printf("},\n")
|
||||
}
|
||||
|
||||
func TestFuzzDeriveSha(t *testing.T) {
|
||||
// increase this for longer runs -- it's set to quite low for travis
|
||||
rndSeed := mrand.Int()
|
||||
for i := 0; i < 10; i++ {
|
||||
seed := rndSeed + i
|
||||
exp := types.DeriveSha(newDummy(i), newEmpty())
|
||||
got := types.DeriveSha(newDummy(i), NewStackTrie(nil))
|
||||
if !bytes.Equal(got[:], exp[:]) {
|
||||
printList(newDummy(seed))
|
||||
t.Fatalf("seed %d: got %x exp %x", seed, got, exp)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
type flatList struct {
|
||||
rlpvals []string
|
||||
}
|
||||
|
||||
func newFlatList(rlpvals []string) *flatList {
|
||||
return &flatList{rlpvals}
|
||||
}
|
||||
func (f *flatList) Len() int {
|
||||
return len(f.rlpvals)
|
||||
}
|
||||
func (f *flatList) GetRlp(i int) []byte {
|
||||
return hexutil.MustDecode(f.rlpvals[i])
|
||||
}
|
||||
|
||||
// TestDerivableList contains testcases found via fuzzing
|
||||
func TestDerivableList(t *testing.T) {
|
||||
type tcase []string
|
||||
tcs := []tcase{
|
||||
{
|
||||
"0xc041",
|
||||
},
|
||||
{
|
||||
"0xf04cf757812428b0763112efb33b6f4fad7deb445e",
|
||||
"0xf04cf757812428b0763112efb33b6f4fad7deb445e",
|
||||
},
|
||||
{
|
||||
"0xca410605310cdc3bb8d4977ae4f0143df54a724ed873457e2272f39d66e0460e971d9d",
|
||||
"0x6cd850eca0a7ac46bb1748d7b9cb88aa3bd21c57d852c28198ad8fa422c4595032e88a4494b4778b36b944fe47a52b8c5cd312910139dfcb4147ab8e972cc456bcb063f25dd78f54c4d34679e03142c42c662af52947d45bdb6e555751334ace76a5080ab5a0256a1d259855dfc5c0b8023b25befbb13fd3684f9f755cbd3d63544c78ee2001452dd54633a7593ade0b183891a0a4e9c7844e1254005fbe592b1b89149a502c24b6e1dca44c158aebedf01beae9c30cabe16a",
|
||||
"0x14abd5c47c0be87b0454596baad2",
|
||||
"0xca410605310cdc3bb8d4977ae4f0143df54a724ed873457e2272f39d66e0460e971d9d",
|
||||
},
|
||||
}
|
||||
for i, tc := range tcs[1:] {
|
||||
exp := types.DeriveSha(newFlatList(tc), newEmpty())
|
||||
got := types.DeriveSha(newFlatList(tc), NewStackTrie(nil))
|
||||
if !bytes.Equal(got[:], exp[:]) {
|
||||
t.Fatalf("case %d: got %x exp %x", i, got, exp)
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user