Moved ptrie => trie. Removed old trie
This commit is contained in:
obscuren
parent
982c812e81
commit
db4aaedcbd
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@ -3,7 +3,7 @@ package types
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import (
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/ethutil"
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"github.com/ethereum/go-ethereum/ptrie"
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"github.com/ethereum/go-ethereum/trie"
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)
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type DerivableList interface {
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@ -13,7 +13,7 @@ type DerivableList interface {
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func DeriveSha(list DerivableList) []byte {
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db, _ := ethdb.NewMemDatabase()
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trie := ptrie.New(nil, db)
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trie := trie.New(nil, db)
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for i := 0; i < list.Len(); i++ {
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trie.Update(ethutil.Encode(i), list.GetRlp(i))
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}
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@ -1,115 +0,0 @@
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package ptrie
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import (
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"bytes"
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"github.com/ethereum/go-ethereum/trie"
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)
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type Iterator struct {
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trie *Trie
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Key []byte
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Value []byte
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}
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func NewIterator(trie *Trie) *Iterator {
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return &Iterator{trie: trie, Key: make([]byte, 32)}
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}
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func (self *Iterator) Next() bool {
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self.trie.mu.Lock()
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defer self.trie.mu.Unlock()
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key := trie.RemTerm(trie.CompactHexDecode(string(self.Key)))
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k := self.next(self.trie.root, key)
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self.Key = []byte(trie.DecodeCompact(k))
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return len(k) > 0
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}
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func (self *Iterator) next(node Node, key []byte) []byte {
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if node == nil {
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return nil
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}
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switch node := node.(type) {
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case *FullNode:
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if len(key) > 0 {
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k := self.next(node.branch(key[0]), key[1:])
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if k != nil {
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return append([]byte{key[0]}, k...)
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}
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}
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var r byte
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if len(key) > 0 {
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r = key[0] + 1
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}
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for i := r; i < 16; i++ {
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k := self.key(node.branch(byte(i)))
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if k != nil {
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return append([]byte{i}, k...)
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}
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}
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case *ShortNode:
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k := trie.RemTerm(node.Key())
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if vnode, ok := node.Value().(*ValueNode); ok {
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if bytes.Compare([]byte(k), key) > 0 {
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self.Value = vnode.Val()
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return k
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}
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} else {
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cnode := node.Value()
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var ret []byte
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skey := key[len(k):]
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if trie.BeginsWith(key, k) {
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ret = self.next(cnode, skey)
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} else if bytes.Compare(k, key[:len(k)]) > 0 {
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ret = self.key(node)
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}
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if ret != nil {
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return append(k, ret...)
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}
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}
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}
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return nil
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}
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func (self *Iterator) key(node Node) []byte {
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switch node := node.(type) {
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case *ShortNode:
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// Leaf node
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if vnode, ok := node.Value().(*ValueNode); ok {
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k := trie.RemTerm(node.Key())
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self.Value = vnode.Val()
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return k
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} else {
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k := trie.RemTerm(node.Key())
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return append(k, self.key(node.Value())...)
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}
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case *FullNode:
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if node.Value() != nil {
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self.Value = node.Value().(*ValueNode).Val()
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return []byte{16}
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}
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for i := 0; i < 16; i++ {
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k := self.key(node.branch(byte(i)))
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if k != nil {
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return append([]byte{byte(i)}, k...)
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}
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}
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}
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return nil
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}
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335
ptrie/trie.go
335
ptrie/trie.go
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@ -1,335 +0,0 @@
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package ptrie
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import (
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"bytes"
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"container/list"
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"fmt"
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"sync"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/ethutil"
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"github.com/ethereum/go-ethereum/trie"
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)
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func ParanoiaCheck(t1 *Trie, backend Backend) (bool, *Trie) {
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t2 := New(nil, backend)
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it := t1.Iterator()
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for it.Next() {
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t2.Update(it.Key, it.Value)
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}
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return bytes.Equal(t2.Hash(), t1.Hash()), t2
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}
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type Trie struct {
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mu sync.Mutex
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root Node
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roothash []byte
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cache *Cache
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revisions *list.List
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}
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func New(root []byte, backend Backend) *Trie {
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trie := &Trie{}
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trie.revisions = list.New()
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trie.roothash = root
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trie.cache = NewCache(backend)
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if root != nil {
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value := ethutil.NewValueFromBytes(trie.cache.Get(root))
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trie.root = trie.mknode(value)
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}
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return trie
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}
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func (self *Trie) Iterator() *Iterator {
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return NewIterator(self)
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}
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func (self *Trie) Copy() *Trie {
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return New(self.roothash, self.cache.backend)
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}
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// Legacy support
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func (self *Trie) Root() []byte { return self.Hash() }
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func (self *Trie) Hash() []byte {
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var hash []byte
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if self.root != nil {
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t := self.root.Hash()
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if byts, ok := t.([]byte); ok && len(byts) > 0 {
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hash = byts
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} else {
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hash = crypto.Sha3(ethutil.Encode(self.root.RlpData()))
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}
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} else {
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hash = crypto.Sha3(ethutil.Encode(""))
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}
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if !bytes.Equal(hash, self.roothash) {
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self.revisions.PushBack(self.roothash)
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self.roothash = hash
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}
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return hash
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}
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func (self *Trie) Commit() {
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self.mu.Lock()
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defer self.mu.Unlock()
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// Hash first
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self.Hash()
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self.cache.Flush()
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}
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// Reset should only be called if the trie has been hashed
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func (self *Trie) Reset() {
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self.mu.Lock()
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defer self.mu.Unlock()
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self.cache.Reset()
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if self.revisions.Len() > 0 {
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revision := self.revisions.Remove(self.revisions.Back()).([]byte)
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self.roothash = revision
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}
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value := ethutil.NewValueFromBytes(self.cache.Get(self.roothash))
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self.root = self.mknode(value)
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}
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func (self *Trie) UpdateString(key, value string) Node { return self.Update([]byte(key), []byte(value)) }
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func (self *Trie) Update(key, value []byte) Node {
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self.mu.Lock()
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defer self.mu.Unlock()
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k := trie.CompactHexDecode(string(key))
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if len(value) != 0 {
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self.root = self.insert(self.root, k, &ValueNode{self, value})
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} else {
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self.root = self.delete(self.root, k)
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}
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return self.root
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}
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func (self *Trie) GetString(key string) []byte { return self.Get([]byte(key)) }
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func (self *Trie) Get(key []byte) []byte {
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self.mu.Lock()
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defer self.mu.Unlock()
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k := trie.CompactHexDecode(string(key))
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n := self.get(self.root, k)
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if n != nil {
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return n.(*ValueNode).Val()
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}
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return nil
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}
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func (self *Trie) DeleteString(key string) Node { return self.Delete([]byte(key)) }
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func (self *Trie) Delete(key []byte) Node {
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self.mu.Lock()
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defer self.mu.Unlock()
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k := trie.CompactHexDecode(string(key))
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self.root = self.delete(self.root, k)
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return self.root
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}
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func (self *Trie) insert(node Node, key []byte, value Node) Node {
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if len(key) == 0 {
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return value
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}
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if node == nil {
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return NewShortNode(self, key, value)
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}
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switch node := node.(type) {
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case *ShortNode:
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k := node.Key()
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cnode := node.Value()
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if bytes.Equal(k, key) {
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return NewShortNode(self, key, value)
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}
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var n Node
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matchlength := trie.MatchingNibbleLength(key, k)
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if matchlength == len(k) {
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n = self.insert(cnode, key[matchlength:], value)
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} else {
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pnode := self.insert(nil, k[matchlength+1:], cnode)
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nnode := self.insert(nil, key[matchlength+1:], value)
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fulln := NewFullNode(self)
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fulln.set(k[matchlength], pnode)
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fulln.set(key[matchlength], nnode)
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n = fulln
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}
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if matchlength == 0 {
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return n
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}
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return NewShortNode(self, key[:matchlength], n)
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case *FullNode:
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cpy := node.Copy().(*FullNode)
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cpy.set(key[0], self.insert(node.branch(key[0]), key[1:], value))
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return cpy
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default:
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panic(fmt.Sprintf("%T: invalid node: %v", node, node))
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}
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}
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func (self *Trie) get(node Node, key []byte) Node {
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if len(key) == 0 {
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return node
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}
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if node == nil {
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return nil
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}
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switch node := node.(type) {
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case *ShortNode:
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k := node.Key()
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cnode := node.Value()
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if len(key) >= len(k) && bytes.Equal(k, key[:len(k)]) {
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return self.get(cnode, key[len(k):])
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}
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return nil
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case *FullNode:
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return self.get(node.branch(key[0]), key[1:])
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default:
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panic(fmt.Sprintf("%T: invalid node: %v", node, node))
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}
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}
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func (self *Trie) delete(node Node, key []byte) Node {
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if len(key) == 0 && node == nil {
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return nil
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}
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switch node := node.(type) {
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case *ShortNode:
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k := node.Key()
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cnode := node.Value()
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if bytes.Equal(key, k) {
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return nil
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} else if bytes.Equal(key[:len(k)], k) {
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child := self.delete(cnode, key[len(k):])
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var n Node
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switch child := child.(type) {
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case *ShortNode:
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nkey := append(k, child.Key()...)
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n = NewShortNode(self, nkey, child.Value())
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case *FullNode:
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sn := NewShortNode(self, node.Key(), child)
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sn.key = node.key
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n = sn
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}
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return n
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} else {
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return node
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}
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case *FullNode:
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n := node.Copy().(*FullNode)
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n.set(key[0], self.delete(n.branch(key[0]), key[1:]))
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pos := -1
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for i := 0; i < 17; i++ {
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if n.branch(byte(i)) != nil {
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if pos == -1 {
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pos = i
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} else {
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pos = -2
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}
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}
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}
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var nnode Node
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if pos == 16 {
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nnode = NewShortNode(self, []byte{16}, n.branch(byte(pos)))
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} else if pos >= 0 {
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cnode := n.branch(byte(pos))
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switch cnode := cnode.(type) {
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case *ShortNode:
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// Stitch keys
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k := append([]byte{byte(pos)}, cnode.Key()...)
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nnode = NewShortNode(self, k, cnode.Value())
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case *FullNode:
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nnode = NewShortNode(self, []byte{byte(pos)}, n.branch(byte(pos)))
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}
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} else {
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nnode = n
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}
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return nnode
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case nil:
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return nil
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default:
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panic(fmt.Sprintf("%T: invalid node: %v (%v)", node, node, key))
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}
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}
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// casting functions and cache storing
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func (self *Trie) mknode(value *ethutil.Value) Node {
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l := value.Len()
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switch l {
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case 0:
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return nil
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case 2:
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// A value node may consists of 2 bytes.
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if value.Get(0).Len() != 0 {
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return NewShortNode(self, trie.CompactDecode(string(value.Get(0).Bytes())), self.mknode(value.Get(1)))
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}
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case 17:
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fnode := NewFullNode(self)
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for i := 0; i < l; i++ {
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fnode.set(byte(i), self.mknode(value.Get(i)))
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}
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return fnode
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case 32:
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return &HashNode{value.Bytes()}
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}
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return &ValueNode{self, value.Bytes()}
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}
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func (self *Trie) trans(node Node) Node {
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switch node := node.(type) {
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case *HashNode:
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value := ethutil.NewValueFromBytes(self.cache.Get(node.key))
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return self.mknode(value)
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default:
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return node
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}
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}
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func (self *Trie) store(node Node) interface{} {
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data := ethutil.Encode(node)
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if len(data) >= 32 {
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key := crypto.Sha3(data)
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self.cache.Put(key, data)
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return key
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}
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return node.RlpData()
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}
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func (self *Trie) PrintRoot() {
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fmt.Println(self.root)
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}
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@ -1,259 +0,0 @@
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package ptrie
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import (
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"bytes"
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"fmt"
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"testing"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/ethutil"
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)
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type Db map[string][]byte
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func (self Db) Get(k []byte) ([]byte, error) { return self[string(k)], nil }
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func (self Db) Put(k, v []byte) { self[string(k)] = v }
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// Used for testing
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func NewEmpty() *Trie {
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return New(nil, make(Db))
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}
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func TestEmptyTrie(t *testing.T) {
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trie := NewEmpty()
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res := trie.Hash()
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exp := crypto.Sha3(ethutil.Encode(""))
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if !bytes.Equal(res, exp) {
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t.Errorf("expected %x got %x", exp, res)
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}
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}
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func TestInsert(t *testing.T) {
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trie := NewEmpty()
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trie.UpdateString("doe", "reindeer")
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trie.UpdateString("dog", "puppy")
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trie.UpdateString("dogglesworth", "cat")
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exp := ethutil.Hex2Bytes("8aad789dff2f538bca5d8ea56e8abe10f4c7ba3a5dea95fea4cd6e7c3a1168d3")
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root := trie.Hash()
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if !bytes.Equal(root, exp) {
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t.Errorf("exp %x got %x", exp, root)
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}
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trie = NewEmpty()
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trie.UpdateString("A", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
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exp = ethutil.Hex2Bytes("d23786fb4a010da3ce639d66d5e904a11dbc02746d1ce25029e53290cabf28ab")
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root = trie.Hash()
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if !bytes.Equal(root, exp) {
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t.Errorf("exp %x got %x", exp, root)
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}
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}
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func TestGet(t *testing.T) {
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trie := NewEmpty()
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||||
|
||||
trie.UpdateString("doe", "reindeer")
|
||||
trie.UpdateString("dog", "puppy")
|
||||
trie.UpdateString("dogglesworth", "cat")
|
||||
|
||||
res := trie.GetString("dog")
|
||||
if !bytes.Equal(res, []byte("puppy")) {
|
||||
t.Errorf("expected puppy got %x", res)
|
||||
}
|
||||
|
||||
unknown := trie.GetString("unknown")
|
||||
if unknown != nil {
|
||||
t.Errorf("expected nil got %x", unknown)
|
||||
}
|
||||
}
|
||||
|
||||
func TestDelete(t *testing.T) {
|
||||
trie := NewEmpty()
|
||||
|
||||
vals := []struct{ k, v string }{
|
||||
{"do", "verb"},
|
||||
{"ether", "wookiedoo"},
|
||||
{"horse", "stallion"},
|
||||
{"shaman", "horse"},
|
||||
{"doge", "coin"},
|
||||
{"ether", ""},
|
||||
{"dog", "puppy"},
|
||||
{"shaman", ""},
|
||||
}
|
||||
for _, val := range vals {
|
||||
if val.v != "" {
|
||||
trie.UpdateString(val.k, val.v)
|
||||
} else {
|
||||
trie.DeleteString(val.k)
|
||||
}
|
||||
}
|
||||
|
||||
hash := trie.Hash()
|
||||
exp := ethutil.Hex2Bytes("5991bb8c6514148a29db676a14ac506cd2cd5775ace63c30a4fe457715e9ac84")
|
||||
if !bytes.Equal(hash, exp) {
|
||||
t.Errorf("expected %x got %x", exp, hash)
|
||||
}
|
||||
}
|
||||
|
||||
func TestEmptyValues(t *testing.T) {
|
||||
trie := NewEmpty()
|
||||
|
||||
vals := []struct{ k, v string }{
|
||||
{"do", "verb"},
|
||||
{"ether", "wookiedoo"},
|
||||
{"horse", "stallion"},
|
||||
{"shaman", "horse"},
|
||||
{"doge", "coin"},
|
||||
{"ether", ""},
|
||||
{"dog", "puppy"},
|
||||
{"shaman", ""},
|
||||
}
|
||||
for _, val := range vals {
|
||||
trie.UpdateString(val.k, val.v)
|
||||
}
|
||||
|
||||
hash := trie.Hash()
|
||||
exp := ethutil.Hex2Bytes("5991bb8c6514148a29db676a14ac506cd2cd5775ace63c30a4fe457715e9ac84")
|
||||
if !bytes.Equal(hash, exp) {
|
||||
t.Errorf("expected %x got %x", exp, hash)
|
||||
}
|
||||
}
|
||||
|
||||
func TestReplication(t *testing.T) {
|
||||
trie := NewEmpty()
|
||||
vals := []struct{ k, v string }{
|
||||
{"do", "verb"},
|
||||
{"ether", "wookiedoo"},
|
||||
{"horse", "stallion"},
|
||||
{"shaman", "horse"},
|
||||
{"doge", "coin"},
|
||||
{"ether", ""},
|
||||
{"dog", "puppy"},
|
||||
{"shaman", ""},
|
||||
{"somethingveryoddindeedthis is", "myothernodedata"},
|
||||
}
|
||||
for _, val := range vals {
|
||||
trie.UpdateString(val.k, val.v)
|
||||
}
|
||||
trie.Commit()
|
||||
|
||||
trie2 := New(trie.roothash, trie.cache.backend)
|
||||
if string(trie2.GetString("horse")) != "stallion" {
|
||||
t.Error("expected to have horse => stallion")
|
||||
}
|
||||
|
||||
hash := trie2.Hash()
|
||||
exp := trie.Hash()
|
||||
if !bytes.Equal(hash, exp) {
|
||||
t.Errorf("root failure. expected %x got %x", exp, hash)
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
func TestReset(t *testing.T) {
|
||||
trie := NewEmpty()
|
||||
vals := []struct{ k, v string }{
|
||||
{"do", "verb"},
|
||||
{"ether", "wookiedoo"},
|
||||
{"horse", "stallion"},
|
||||
}
|
||||
for _, val := range vals {
|
||||
trie.UpdateString(val.k, val.v)
|
||||
}
|
||||
trie.Commit()
|
||||
|
||||
before := ethutil.CopyBytes(trie.roothash)
|
||||
trie.UpdateString("should", "revert")
|
||||
trie.Hash()
|
||||
// Should have no effect
|
||||
trie.Hash()
|
||||
trie.Hash()
|
||||
// ###
|
||||
|
||||
trie.Reset()
|
||||
after := ethutil.CopyBytes(trie.roothash)
|
||||
|
||||
if !bytes.Equal(before, after) {
|
||||
t.Errorf("expected roots to be equal. %x - %x", before, after)
|
||||
}
|
||||
}
|
||||
|
||||
func TestParanoia(t *testing.T) {
|
||||
t.Skip()
|
||||
trie := NewEmpty()
|
||||
|
||||
vals := []struct{ k, v string }{
|
||||
{"do", "verb"},
|
||||
{"ether", "wookiedoo"},
|
||||
{"horse", "stallion"},
|
||||
{"shaman", "horse"},
|
||||
{"doge", "coin"},
|
||||
{"ether", ""},
|
||||
{"dog", "puppy"},
|
||||
{"shaman", ""},
|
||||
{"somethingveryoddindeedthis is", "myothernodedata"},
|
||||
}
|
||||
for _, val := range vals {
|
||||
trie.UpdateString(val.k, val.v)
|
||||
}
|
||||
trie.Commit()
|
||||
|
||||
ok, t2 := ParanoiaCheck(trie, trie.cache.backend)
|
||||
if !ok {
|
||||
t.Errorf("trie paranoia check failed %x %x", trie.roothash, t2.roothash)
|
||||
}
|
||||
}
|
||||
|
||||
// Not an actual test
|
||||
func TestOutput(t *testing.T) {
|
||||
t.Skip()
|
||||
|
||||
base := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
||||
trie := NewEmpty()
|
||||
for i := 0; i < 50; i++ {
|
||||
trie.UpdateString(fmt.Sprintf("%s%d", base, i), "valueeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee")
|
||||
}
|
||||
fmt.Println("############################## FULL ################################")
|
||||
fmt.Println(trie.root)
|
||||
|
||||
trie.Commit()
|
||||
fmt.Println("############################## SMALL ################################")
|
||||
trie2 := New(trie.roothash, trie.cache.backend)
|
||||
trie2.GetString(base + "20")
|
||||
fmt.Println(trie2.root)
|
||||
}
|
||||
|
||||
func BenchmarkGets(b *testing.B) {
|
||||
trie := NewEmpty()
|
||||
vals := []struct{ k, v string }{
|
||||
{"do", "verb"},
|
||||
{"ether", "wookiedoo"},
|
||||
{"horse", "stallion"},
|
||||
{"shaman", "horse"},
|
||||
{"doge", "coin"},
|
||||
{"ether", ""},
|
||||
{"dog", "puppy"},
|
||||
{"shaman", ""},
|
||||
{"somethingveryoddindeedthis is", "myothernodedata"},
|
||||
}
|
||||
for _, val := range vals {
|
||||
trie.UpdateString(val.k, val.v)
|
||||
}
|
||||
|
||||
b.ResetTimer()
|
||||
for i := 0; i < b.N; i++ {
|
||||
trie.Get([]byte("horse"))
|
||||
}
|
||||
}
|
||||
|
||||
func BenchmarkUpdate(b *testing.B) {
|
||||
trie := NewEmpty()
|
||||
|
||||
b.ResetTimer()
|
||||
for i := 0; i < b.N; i++ {
|
||||
trie.UpdateString(fmt.Sprintf("aaaaaaaaa%d", i), "value")
|
||||
}
|
||||
trie.Hash()
|
||||
}
|
||||
|
|
@ -6,7 +6,7 @@ import (
|
|||
|
||||
"github.com/ethereum/go-ethereum/crypto"
|
||||
"github.com/ethereum/go-ethereum/ethutil"
|
||||
"github.com/ethereum/go-ethereum/ptrie"
|
||||
"github.com/ethereum/go-ethereum/trie"
|
||||
)
|
||||
|
||||
type Code []byte
|
||||
|
|
@ -152,7 +152,7 @@ func (self *StateObject) Sync() {
|
|||
}
|
||||
|
||||
/*
|
||||
valid, t2 := ptrie.ParanoiaCheck(self.State.trie, ethutil.Config.Db)
|
||||
valid, t2 := trie.ParanoiaCheck(self.State.trie, ethutil.Config.Db)
|
||||
if !valid {
|
||||
statelogger.Infof("Warn: PARANOIA: Different state storage root during copy %x vs %x\n", self.State.Root(), t2.Root())
|
||||
|
||||
|
|
@ -273,7 +273,7 @@ func (c *StateObject) Init() Code {
|
|||
return c.InitCode
|
||||
}
|
||||
|
||||
func (self *StateObject) Trie() *ptrie.Trie {
|
||||
func (self *StateObject) Trie() *trie.Trie {
|
||||
return self.State.trie
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -6,7 +6,7 @@ import (
|
|||
|
||||
"github.com/ethereum/go-ethereum/ethutil"
|
||||
"github.com/ethereum/go-ethereum/logger"
|
||||
"github.com/ethereum/go-ethereum/ptrie"
|
||||
"github.com/ethereum/go-ethereum/trie"
|
||||
)
|
||||
|
||||
var statelogger = logger.NewLogger("STATE")
|
||||
|
|
@ -18,7 +18,7 @@ var statelogger = logger.NewLogger("STATE")
|
|||
// * Accounts
|
||||
type StateDB struct {
|
||||
db ethutil.Database
|
||||
trie *ptrie.Trie
|
||||
trie *trie.Trie
|
||||
|
||||
stateObjects map[string]*StateObject
|
||||
|
||||
|
|
@ -30,9 +30,8 @@ type StateDB struct {
|
|||
}
|
||||
|
||||
// Create a new state from a given trie
|
||||
//func New(trie *ptrie.Trie) *StateDB {
|
||||
func New(root []byte, db ethutil.Database) *StateDB {
|
||||
trie := ptrie.New(root, db)
|
||||
trie := trie.New(root, db)
|
||||
return &StateDB{db: db, trie: trie, stateObjects: make(map[string]*StateObject), manifest: NewManifest(), refund: make(map[string]*big.Int)}
|
||||
}
|
||||
|
||||
|
|
@ -308,7 +307,7 @@ func (self *StateDB) Update(gasUsed *big.Int) {
|
|||
|
||||
// FIXME trie delete is broken
|
||||
if deleted {
|
||||
valid, t2 := ptrie.ParanoiaCheck(self.trie, self.db)
|
||||
valid, t2 := trie.ParanoiaCheck(self.trie, self.db)
|
||||
if !valid {
|
||||
statelogger.Infof("Warn: PARANOIA: Different state root during copy %x vs %x\n", self.trie.Root(), t2.Root())
|
||||
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
package helper
|
||||
|
||||
import "github.com/ethereum/go-ethereum/ptrie"
|
||||
import "github.com/ethereum/go-ethereum/trie"
|
||||
|
||||
type MemDatabase struct {
|
||||
db map[string][]byte
|
||||
|
|
@ -24,8 +24,8 @@ func (db *MemDatabase) Print() {}
|
|||
func (db *MemDatabase) Close() {}
|
||||
func (db *MemDatabase) LastKnownTD() []byte { return nil }
|
||||
|
||||
func NewTrie() *ptrie.Trie {
|
||||
func NewTrie() *trie.Trie {
|
||||
db, _ := NewMemDatabase()
|
||||
|
||||
return ptrie.New(nil, db)
|
||||
return trie.New(nil, db)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
package ptrie
|
||||
package trie
|
||||
|
||||
type Backend interface {
|
||||
Get([]byte) ([]byte, error)
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
package ptrie
|
||||
package trie
|
||||
|
||||
import "fmt"
|
||||
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
package ptrie
|
||||
package trie
|
||||
|
||||
type HashNode struct {
|
||||
key []byte
|
||||
154
trie/iterator.go
154
trie/iterator.go
|
|
@ -1,124 +1,73 @@
|
|||
package trie
|
||||
|
||||
/*
|
||||
import (
|
||||
"bytes"
|
||||
|
||||
"github.com/ethereum/go-ethereum/ethutil"
|
||||
)
|
||||
|
||||
type NodeType byte
|
||||
|
||||
const (
|
||||
EmptyNode NodeType = iota
|
||||
BranchNode
|
||||
LeafNode
|
||||
ExtNode
|
||||
)
|
||||
|
||||
func getType(node *ethutil.Value) NodeType {
|
||||
if node.Len() == 0 {
|
||||
return EmptyNode
|
||||
}
|
||||
|
||||
if node.Len() == 2 {
|
||||
k := CompactDecode(node.Get(0).Str())
|
||||
if HasTerm(k) {
|
||||
return LeafNode
|
||||
}
|
||||
|
||||
return ExtNode
|
||||
}
|
||||
|
||||
return BranchNode
|
||||
}
|
||||
import "bytes"
|
||||
|
||||
type Iterator struct {
|
||||
Path [][]byte
|
||||
trie *Trie
|
||||
|
||||
Key []byte
|
||||
Value *ethutil.Value
|
||||
Value []byte
|
||||
}
|
||||
|
||||
func NewIterator(trie *Trie) *Iterator {
|
||||
return &Iterator{trie: trie}
|
||||
return &Iterator{trie: trie, Key: make([]byte, 32)}
|
||||
}
|
||||
|
||||
func (self *Iterator) key(node *ethutil.Value, path [][]byte) []byte {
|
||||
switch getType(node) {
|
||||
case LeafNode:
|
||||
k := RemTerm(CompactDecode(node.Get(0).Str()))
|
||||
func (self *Iterator) Next() bool {
|
||||
self.trie.mu.Lock()
|
||||
defer self.trie.mu.Unlock()
|
||||
|
||||
self.Path = append(path, k)
|
||||
self.Value = node.Get(1)
|
||||
key := RemTerm(CompactHexDecode(string(self.Key)))
|
||||
k := self.next(self.trie.root, key)
|
||||
|
||||
return k
|
||||
case BranchNode:
|
||||
if node.Get(16).Len() > 0 {
|
||||
return []byte{16}
|
||||
}
|
||||
self.Key = []byte(DecodeCompact(k))
|
||||
|
||||
for i := byte(0); i < 16; i++ {
|
||||
o := self.key(self.trie.getNode(node.Get(int(i)).Raw()), append(path, []byte{i}))
|
||||
if o != nil {
|
||||
return append([]byte{i}, o...)
|
||||
}
|
||||
}
|
||||
case ExtNode:
|
||||
currKey := node.Get(0).Bytes()
|
||||
return len(k) > 0
|
||||
|
||||
return self.key(self.trie.getNode(node.Get(1).Raw()), append(path, currKey))
|
||||
}
|
||||
|
||||
func (self *Iterator) next(node Node, key []byte) []byte {
|
||||
if node == nil {
|
||||
return nil
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (self *Iterator) next(node *ethutil.Value, key []byte, path [][]byte) []byte {
|
||||
switch typ := getType(node); typ {
|
||||
case EmptyNode:
|
||||
return nil
|
||||
case BranchNode:
|
||||
switch node := node.(type) {
|
||||
case *FullNode:
|
||||
if len(key) > 0 {
|
||||
subNode := self.trie.getNode(node.Get(int(key[0])).Raw())
|
||||
|
||||
o := self.next(subNode, key[1:], append(path, key[:1]))
|
||||
if o != nil {
|
||||
return append([]byte{key[0]}, o...)
|
||||
k := self.next(node.branch(key[0]), key[1:])
|
||||
if k != nil {
|
||||
return append([]byte{key[0]}, k...)
|
||||
}
|
||||
}
|
||||
|
||||
var r byte = 0
|
||||
var r byte
|
||||
if len(key) > 0 {
|
||||
r = key[0] + 1
|
||||
}
|
||||
|
||||
for i := r; i < 16; i++ {
|
||||
subNode := self.trie.getNode(node.Get(int(i)).Raw())
|
||||
o := self.key(subNode, append(path, []byte{i}))
|
||||
if o != nil {
|
||||
return append([]byte{i}, o...)
|
||||
k := self.key(node.branch(byte(i)))
|
||||
if k != nil {
|
||||
return append([]byte{i}, k...)
|
||||
}
|
||||
}
|
||||
case LeafNode, ExtNode:
|
||||
k := RemTerm(CompactDecode(node.Get(0).Str()))
|
||||
if typ == LeafNode {
|
||||
if bytes.Compare([]byte(k), []byte(key)) > 0 {
|
||||
self.Value = node.Get(1)
|
||||
self.Path = append(path, k)
|
||||
|
||||
case *ShortNode:
|
||||
k := RemTerm(node.Key())
|
||||
if vnode, ok := node.Value().(*ValueNode); ok {
|
||||
if bytes.Compare([]byte(k), key) > 0 {
|
||||
self.Value = vnode.Val()
|
||||
return k
|
||||
}
|
||||
} else {
|
||||
subNode := self.trie.getNode(node.Get(1).Raw())
|
||||
subKey := key[len(k):]
|
||||
cnode := node.Value()
|
||||
|
||||
var ret []byte
|
||||
skey := key[len(k):]
|
||||
if BeginsWith(key, k) {
|
||||
ret = self.next(subNode, subKey, append(path, k))
|
||||
ret = self.next(cnode, skey)
|
||||
} else if bytes.Compare(k, key[:len(k)]) > 0 {
|
||||
ret = self.key(node, append(path, k))
|
||||
} else {
|
||||
ret = nil
|
||||
ret = self.key(node)
|
||||
}
|
||||
|
||||
if ret != nil {
|
||||
|
|
@ -130,16 +79,33 @@ func (self *Iterator) next(node *ethutil.Value, key []byte, path [][]byte) []byt
|
|||
return nil
|
||||
}
|
||||
|
||||
// Get the next in keys
|
||||
func (self *Iterator) Next(key string) []byte {
|
||||
self.trie.mut.Lock()
|
||||
defer self.trie.mut.Unlock()
|
||||
func (self *Iterator) key(node Node) []byte {
|
||||
switch node := node.(type) {
|
||||
case *ShortNode:
|
||||
// Leaf node
|
||||
if vnode, ok := node.Value().(*ValueNode); ok {
|
||||
k := RemTerm(node.Key())
|
||||
self.Value = vnode.Val()
|
||||
|
||||
k := RemTerm(CompactHexDecode(key))
|
||||
n := self.next(self.trie.getNode(self.trie.Root), k, nil)
|
||||
return k
|
||||
} else {
|
||||
k := RemTerm(node.Key())
|
||||
return append(k, self.key(node.Value())...)
|
||||
}
|
||||
case *FullNode:
|
||||
if node.Value() != nil {
|
||||
self.Value = node.Value().(*ValueNode).Val()
|
||||
|
||||
self.Key = []byte(DecodeCompact(n))
|
||||
return []byte{16}
|
||||
}
|
||||
|
||||
return self.Key
|
||||
for i := 0; i < 16; i++ {
|
||||
k := self.key(node.branch(byte(i)))
|
||||
if k != nil {
|
||||
return append([]byte{byte(i)}, k...)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
*/
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
package ptrie
|
||||
package trie
|
||||
|
||||
import "testing"
|
||||
|
||||
|
|
@ -1,9 +0,0 @@
|
|||
package trie
|
||||
|
||||
import (
|
||||
"testing"
|
||||
|
||||
checker "gopkg.in/check.v1"
|
||||
)
|
||||
|
||||
func Test(t *testing.T) { checker.TestingT(t) }
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
package ptrie
|
||||
package trie
|
||||
|
||||
import "fmt"
|
||||
|
||||
|
|
@ -1,6 +1,4 @@
|
|||
package ptrie
|
||||
|
||||
import "github.com/ethereum/go-ethereum/trie"
|
||||
package trie
|
||||
|
||||
type ShortNode struct {
|
||||
trie *Trie
|
||||
|
|
@ -9,7 +7,7 @@ type ShortNode struct {
|
|||
}
|
||||
|
||||
func NewShortNode(t *Trie, key []byte, value Node) *ShortNode {
|
||||
return &ShortNode{t, []byte(trie.CompactEncode(key)), value}
|
||||
return &ShortNode{t, []byte(CompactEncode(key)), value}
|
||||
}
|
||||
func (self *ShortNode) Value() Node {
|
||||
self.value = self.trie.trans(self.value)
|
||||
|
|
@ -27,5 +25,5 @@ func (self *ShortNode) Hash() interface{} {
|
|||
}
|
||||
|
||||
func (self *ShortNode) Key() []byte {
|
||||
return trie.CompactDecode(string(self.key))
|
||||
return CompactDecode(string(self.key))
|
||||
}
|
||||
863
trie/trie.go
863
trie/trie.go
|
|
@ -1,8 +1,8 @@
|
|||
package trie
|
||||
|
||||
/*
|
||||
import (
|
||||
"bytes"
|
||||
"container/list"
|
||||
"fmt"
|
||||
"sync"
|
||||
|
||||
|
|
@ -10,618 +10,325 @@ import (
|
|||
"github.com/ethereum/go-ethereum/ethutil"
|
||||
)
|
||||
|
||||
func ParanoiaCheck(t1 *Trie) (bool, *Trie) {
|
||||
t2 := New(ethutil.Config.Db, "")
|
||||
func ParanoiaCheck(t1 *Trie, backend Backend) (bool, *Trie) {
|
||||
t2 := New(nil, backend)
|
||||
|
||||
t1.NewIterator().Each(func(key string, v *ethutil.Value) {
|
||||
t2.Update(key, v.Str())
|
||||
})
|
||||
|
||||
return bytes.Compare(t2.GetRoot(), t1.GetRoot()) == 0, t2
|
||||
}
|
||||
|
||||
func (s *Cache) Len() int {
|
||||
return len(s.nodes)
|
||||
}
|
||||
|
||||
// TODO
|
||||
// A StateObject is an object that has a state root
|
||||
// This is goig to be the object for the second level caching (the caching of object which have a state such as contracts)
|
||||
type StateObject interface {
|
||||
State() *Trie
|
||||
Sync()
|
||||
Undo()
|
||||
}
|
||||
|
||||
type Node struct {
|
||||
Key []byte
|
||||
Value *ethutil.Value
|
||||
Dirty bool
|
||||
}
|
||||
|
||||
func NewNode(key []byte, val *ethutil.Value, dirty bool) *Node {
|
||||
return &Node{Key: key, Value: val, Dirty: dirty}
|
||||
}
|
||||
|
||||
func (n *Node) Copy() *Node {
|
||||
return NewNode(n.Key, n.Value, n.Dirty)
|
||||
}
|
||||
|
||||
type Cache struct {
|
||||
nodes map[string]*Node
|
||||
db ethutil.Database
|
||||
IsDirty bool
|
||||
}
|
||||
|
||||
func NewCache(db ethutil.Database) *Cache {
|
||||
return &Cache{db: db, nodes: make(map[string]*Node)}
|
||||
}
|
||||
|
||||
func (cache *Cache) PutValue(v interface{}, force bool) interface{} {
|
||||
value := ethutil.NewValue(v)
|
||||
|
||||
enc := value.Encode()
|
||||
if len(enc) >= 32 || force {
|
||||
sha := crypto.Sha3(enc)
|
||||
|
||||
cache.nodes[string(sha)] = NewNode(sha, value, true)
|
||||
cache.IsDirty = true
|
||||
|
||||
return sha
|
||||
it := t1.Iterator()
|
||||
for it.Next() {
|
||||
t2.Update(it.Key, it.Value)
|
||||
}
|
||||
|
||||
return v
|
||||
return bytes.Equal(t2.Hash(), t1.Hash()), t2
|
||||
}
|
||||
|
||||
func (cache *Cache) Put(v interface{}) interface{} {
|
||||
return cache.PutValue(v, false)
|
||||
}
|
||||
|
||||
func (cache *Cache) Get(key []byte) *ethutil.Value {
|
||||
// First check if the key is the cache
|
||||
if cache.nodes[string(key)] != nil {
|
||||
return cache.nodes[string(key)].Value
|
||||
}
|
||||
|
||||
// Get the key of the database instead and cache it
|
||||
data, _ := cache.db.Get(key)
|
||||
// Create the cached value
|
||||
value := ethutil.NewValueFromBytes(data)
|
||||
|
||||
defer func() {
|
||||
if r := recover(); r != nil {
|
||||
fmt.Println("RECOVER GET", cache, cache.nodes)
|
||||
panic("bye")
|
||||
}
|
||||
}()
|
||||
// Create caching node
|
||||
cache.nodes[string(key)] = NewNode(key, value, true)
|
||||
|
||||
return value
|
||||
}
|
||||
|
||||
func (cache *Cache) Delete(key []byte) {
|
||||
delete(cache.nodes, string(key))
|
||||
|
||||
cache.db.Delete(key)
|
||||
}
|
||||
|
||||
func (cache *Cache) Commit() {
|
||||
// Don't try to commit if it isn't dirty
|
||||
if !cache.IsDirty {
|
||||
return
|
||||
}
|
||||
|
||||
for key, node := range cache.nodes {
|
||||
if node.Dirty {
|
||||
cache.db.Put([]byte(key), node.Value.Encode())
|
||||
node.Dirty = false
|
||||
}
|
||||
}
|
||||
cache.IsDirty = false
|
||||
|
||||
// If the nodes grows beyond the 200 entries we simple empty it
|
||||
// FIXME come up with something better
|
||||
if len(cache.nodes) > 200 {
|
||||
cache.nodes = make(map[string]*Node)
|
||||
}
|
||||
}
|
||||
|
||||
func (cache *Cache) Undo() {
|
||||
for key, node := range cache.nodes {
|
||||
if node.Dirty {
|
||||
delete(cache.nodes, key)
|
||||
}
|
||||
}
|
||||
cache.IsDirty = false
|
||||
}
|
||||
|
||||
// A (modified) Radix Trie implementation. The Trie implements
|
||||
// a caching mechanism and will used cached values if they are
|
||||
// present. If a node is not present in the cache it will try to
|
||||
// fetch it from the database and store the cached value.
|
||||
// Please note that the data isn't persisted unless `Sync` is
|
||||
// explicitly called.
|
||||
type Trie struct {
|
||||
mut sync.RWMutex
|
||||
prevRoot interface{}
|
||||
Root interface{}
|
||||
//db Database
|
||||
cache *Cache
|
||||
mu sync.Mutex
|
||||
root Node
|
||||
roothash []byte
|
||||
cache *Cache
|
||||
|
||||
revisions *list.List
|
||||
}
|
||||
|
||||
func copyRoot(root interface{}) interface{} {
|
||||
var prevRootCopy interface{}
|
||||
if b, ok := root.([]byte); ok {
|
||||
prevRootCopy = ethutil.CopyBytes(b)
|
||||
} else {
|
||||
prevRootCopy = root
|
||||
}
|
||||
func New(root []byte, backend Backend) *Trie {
|
||||
trie := &Trie{}
|
||||
trie.revisions = list.New()
|
||||
trie.roothash = root
|
||||
trie.cache = NewCache(backend)
|
||||
|
||||
return prevRootCopy
|
||||
}
|
||||
|
||||
func New(db ethutil.Database, Root interface{}) *Trie {
|
||||
// Make absolute sure the root is copied
|
||||
r := copyRoot(Root)
|
||||
p := copyRoot(Root)
|
||||
|
||||
trie := &Trie{cache: NewCache(db), Root: r, prevRoot: p}
|
||||
trie.setRoot(Root)
|
||||
|
||||
return trie
|
||||
}
|
||||
|
||||
func (self *Trie) setRoot(root interface{}) {
|
||||
switch t := root.(type) {
|
||||
case string:
|
||||
//if t == "" {
|
||||
// root = crypto.Sha3(ethutil.Encode(""))
|
||||
//}
|
||||
self.Root = []byte(t)
|
||||
case []byte:
|
||||
self.Root = root
|
||||
default:
|
||||
self.Root = self.cache.PutValue(root, true)
|
||||
}
|
||||
}
|
||||
|
||||
func (t *Trie) Update(key, value string) {
|
||||
t.mut.Lock()
|
||||
defer t.mut.Unlock()
|
||||
|
||||
k := CompactHexDecode(key)
|
||||
|
||||
var root interface{}
|
||||
if value != "" {
|
||||
root = t.UpdateState(t.Root, k, value)
|
||||
} else {
|
||||
root = t.deleteState(t.Root, k)
|
||||
}
|
||||
t.setRoot(root)
|
||||
}
|
||||
|
||||
func (t *Trie) Get(key string) string {
|
||||
t.mut.Lock()
|
||||
defer t.mut.Unlock()
|
||||
|
||||
k := CompactHexDecode(key)
|
||||
c := ethutil.NewValue(t.getState(t.Root, k))
|
||||
|
||||
return c.Str()
|
||||
}
|
||||
|
||||
func (t *Trie) Delete(key string) {
|
||||
t.mut.Lock()
|
||||
defer t.mut.Unlock()
|
||||
|
||||
k := CompactHexDecode(key)
|
||||
|
||||
root := t.deleteState(t.Root, k)
|
||||
t.setRoot(root)
|
||||
}
|
||||
|
||||
func (self *Trie) GetRoot() []byte {
|
||||
switch t := self.Root.(type) {
|
||||
case string:
|
||||
if t == "" {
|
||||
return crypto.Sha3(ethutil.Encode(""))
|
||||
}
|
||||
return []byte(t)
|
||||
case []byte:
|
||||
if len(t) == 0 {
|
||||
return crypto.Sha3(ethutil.Encode(""))
|
||||
}
|
||||
|
||||
return t
|
||||
default:
|
||||
panic(fmt.Sprintf("invalid root type %T (%v)", self.Root, self.Root))
|
||||
}
|
||||
}
|
||||
|
||||
// Simple compare function which creates a rlp value out of the evaluated objects
|
||||
func (t *Trie) Cmp(trie *Trie) bool {
|
||||
return ethutil.NewValue(t.Root).Cmp(ethutil.NewValue(trie.Root))
|
||||
}
|
||||
|
||||
// Returns a copy of this trie
|
||||
func (t *Trie) Copy() *Trie {
|
||||
trie := New(t.cache.db, t.Root)
|
||||
for key, node := range t.cache.nodes {
|
||||
trie.cache.nodes[key] = node.Copy()
|
||||
if root != nil {
|
||||
value := ethutil.NewValueFromBytes(trie.cache.Get(root))
|
||||
trie.root = trie.mknode(value)
|
||||
}
|
||||
|
||||
return trie
|
||||
}
|
||||
|
||||
// Save the cached value to the database.
|
||||
func (t *Trie) Sync() {
|
||||
t.cache.Commit()
|
||||
t.prevRoot = copyRoot(t.Root)
|
||||
}
|
||||
|
||||
func (t *Trie) Undo() {
|
||||
t.cache.Undo()
|
||||
t.Root = t.prevRoot
|
||||
}
|
||||
|
||||
func (t *Trie) Cache() *Cache {
|
||||
return t.cache
|
||||
}
|
||||
|
||||
func (t *Trie) getState(node interface{}, key []byte) interface{} {
|
||||
n := ethutil.NewValue(node)
|
||||
// Return the node if key is empty (= found)
|
||||
if len(key) == 0 || n.IsNil() || n.Len() == 0 {
|
||||
return node
|
||||
}
|
||||
|
||||
currentNode := t.getNode(node)
|
||||
length := currentNode.Len()
|
||||
|
||||
if length == 0 {
|
||||
return ""
|
||||
} else if length == 2 {
|
||||
// Decode the key
|
||||
k := CompactDecode(currentNode.Get(0).Str())
|
||||
v := currentNode.Get(1).Raw()
|
||||
|
||||
if len(key) >= len(k) && bytes.Equal(k, key[:len(k)]) { //CompareIntSlice(k, key[:len(k)]) {
|
||||
return t.getState(v, key[len(k):])
|
||||
} else {
|
||||
return ""
|
||||
}
|
||||
} else if length == 17 {
|
||||
return t.getState(currentNode.Get(int(key[0])).Raw(), key[1:])
|
||||
}
|
||||
|
||||
// It shouldn't come this far
|
||||
panic("unexpected return")
|
||||
}
|
||||
|
||||
func (t *Trie) getNode(node interface{}) *ethutil.Value {
|
||||
n := ethutil.NewValue(node)
|
||||
|
||||
if !n.Get(0).IsNil() {
|
||||
return n
|
||||
}
|
||||
|
||||
str := n.Str()
|
||||
if len(str) == 0 {
|
||||
return n
|
||||
} else if len(str) < 32 {
|
||||
return ethutil.NewValueFromBytes([]byte(str))
|
||||
}
|
||||
|
||||
data := t.cache.Get(n.Bytes())
|
||||
|
||||
return data
|
||||
}
|
||||
|
||||
func (t *Trie) UpdateState(node interface{}, key []byte, value string) interface{} {
|
||||
return t.InsertState(node, key, value)
|
||||
}
|
||||
|
||||
func (t *Trie) Put(node interface{}) interface{} {
|
||||
return t.cache.Put(node)
|
||||
|
||||
}
|
||||
|
||||
func EmptyStringSlice(l int) []interface{} {
|
||||
slice := make([]interface{}, l)
|
||||
for i := 0; i < l; i++ {
|
||||
slice[i] = ""
|
||||
}
|
||||
return slice
|
||||
}
|
||||
|
||||
func (t *Trie) InsertState(node interface{}, key []byte, value interface{}) interface{} {
|
||||
if len(key) == 0 {
|
||||
return value
|
||||
}
|
||||
|
||||
// New node
|
||||
n := ethutil.NewValue(node)
|
||||
if node == nil || n.Len() == 0 {
|
||||
newNode := []interface{}{CompactEncode(key), value}
|
||||
|
||||
return t.Put(newNode)
|
||||
}
|
||||
|
||||
currentNode := t.getNode(node)
|
||||
// Check for "special" 2 slice type node
|
||||
if currentNode.Len() == 2 {
|
||||
// Decode the key
|
||||
|
||||
k := CompactDecode(currentNode.Get(0).Str())
|
||||
v := currentNode.Get(1).Raw()
|
||||
|
||||
// Matching key pair (ie. there's already an object with this key)
|
||||
if bytes.Equal(k, key) { //CompareIntSlice(k, key) {
|
||||
newNode := []interface{}{CompactEncode(key), value}
|
||||
return t.Put(newNode)
|
||||
}
|
||||
|
||||
var newHash interface{}
|
||||
matchingLength := MatchingNibbleLength(key, k)
|
||||
if matchingLength == len(k) {
|
||||
// Insert the hash, creating a new node
|
||||
newHash = t.InsertState(v, key[matchingLength:], value)
|
||||
} else {
|
||||
// Expand the 2 length slice to a 17 length slice
|
||||
oldNode := t.InsertState("", k[matchingLength+1:], v)
|
||||
newNode := t.InsertState("", key[matchingLength+1:], value)
|
||||
// Create an expanded slice
|
||||
scaledSlice := EmptyStringSlice(17)
|
||||
// Set the copied and new node
|
||||
scaledSlice[k[matchingLength]] = oldNode
|
||||
scaledSlice[key[matchingLength]] = newNode
|
||||
|
||||
newHash = t.Put(scaledSlice)
|
||||
}
|
||||
|
||||
if matchingLength == 0 {
|
||||
// End of the chain, return
|
||||
return newHash
|
||||
} else {
|
||||
newNode := []interface{}{CompactEncode(key[:matchingLength]), newHash}
|
||||
return t.Put(newNode)
|
||||
}
|
||||
} else {
|
||||
|
||||
// Copy the current node over to the new node and replace the first nibble in the key
|
||||
newNode := EmptyStringSlice(17)
|
||||
|
||||
for i := 0; i < 17; i++ {
|
||||
cpy := currentNode.Get(i).Raw()
|
||||
if cpy != nil {
|
||||
newNode[i] = cpy
|
||||
}
|
||||
}
|
||||
|
||||
newNode[key[0]] = t.InsertState(currentNode.Get(int(key[0])).Raw(), key[1:], value)
|
||||
|
||||
return t.Put(newNode)
|
||||
}
|
||||
|
||||
panic("unexpected end")
|
||||
}
|
||||
|
||||
func (t *Trie) deleteState(node interface{}, key []byte) interface{} {
|
||||
if len(key) == 0 {
|
||||
return ""
|
||||
}
|
||||
|
||||
// New node
|
||||
n := ethutil.NewValue(node)
|
||||
//if node == nil || (n.Type() == reflect.String && (n.Str() == "" || n.Get(0).IsNil())) || n.Len() == 0 {
|
||||
if node == nil || n.Len() == 0 {
|
||||
//return nil
|
||||
//fmt.Printf("<empty ret> %x %d\n", n, len(n.Bytes()))
|
||||
|
||||
return ""
|
||||
}
|
||||
|
||||
currentNode := t.getNode(node)
|
||||
// Check for "special" 2 slice type node
|
||||
if currentNode.Len() == 2 {
|
||||
// Decode the key
|
||||
k := CompactDecode(currentNode.Get(0).Str())
|
||||
v := currentNode.Get(1).Raw()
|
||||
|
||||
// Matching key pair (ie. there's already an object with this key)
|
||||
if bytes.Equal(k, key) { //CompareIntSlice(k, key) {
|
||||
//fmt.Printf("<delete ret> %x\n", v)
|
||||
|
||||
return ""
|
||||
} else if bytes.Equal(key[:len(k)], k) { //CompareIntSlice(key[:len(k)], k) {
|
||||
hash := t.deleteState(v, key[len(k):])
|
||||
child := t.getNode(hash)
|
||||
|
||||
var newNode []interface{}
|
||||
if child.Len() == 2 {
|
||||
newKey := append(k, CompactDecode(child.Get(0).Str())...)
|
||||
newNode = []interface{}{CompactEncode(newKey), child.Get(1).Raw()}
|
||||
} else {
|
||||
newNode = []interface{}{currentNode.Get(0).Str(), hash}
|
||||
}
|
||||
|
||||
//fmt.Printf("%x\n", newNode)
|
||||
|
||||
return t.Put(newNode)
|
||||
} else {
|
||||
return node
|
||||
}
|
||||
} else {
|
||||
// Copy the current node over to the new node and replace the first nibble in the key
|
||||
n := EmptyStringSlice(17)
|
||||
var newNode []interface{}
|
||||
|
||||
for i := 0; i < 17; i++ {
|
||||
cpy := currentNode.Get(i).Raw()
|
||||
if cpy != nil {
|
||||
n[i] = cpy
|
||||
}
|
||||
}
|
||||
|
||||
n[key[0]] = t.deleteState(n[key[0]], key[1:])
|
||||
amount := -1
|
||||
for i := 0; i < 17; i++ {
|
||||
if n[i] != "" {
|
||||
if amount == -1 {
|
||||
amount = i
|
||||
} else {
|
||||
amount = -2
|
||||
}
|
||||
}
|
||||
}
|
||||
if amount == 16 {
|
||||
newNode = []interface{}{CompactEncode([]byte{16}), n[amount]}
|
||||
} else if amount >= 0 {
|
||||
child := t.getNode(n[amount])
|
||||
if child.Len() == 17 {
|
||||
newNode = []interface{}{CompactEncode([]byte{byte(amount)}), n[amount]}
|
||||
} else if child.Len() == 2 {
|
||||
key := append([]byte{byte(amount)}, CompactDecode(child.Get(0).Str())...)
|
||||
newNode = []interface{}{CompactEncode(key), child.Get(1).Str()}
|
||||
}
|
||||
|
||||
} else {
|
||||
newNode = n
|
||||
}
|
||||
|
||||
//fmt.Printf("%x\n", newNode)
|
||||
return t.Put(newNode)
|
||||
}
|
||||
|
||||
panic("unexpected return")
|
||||
}
|
||||
|
||||
type TrieIterator struct {
|
||||
trie *Trie
|
||||
key string
|
||||
value string
|
||||
|
||||
shas [][]byte
|
||||
values []string
|
||||
|
||||
lastNode []byte
|
||||
}
|
||||
|
||||
func (t *Trie) NewIterator() *TrieIterator {
|
||||
return &TrieIterator{trie: t}
|
||||
}
|
||||
|
||||
func (self *Trie) Iterator() *Iterator {
|
||||
return NewIterator(self)
|
||||
}
|
||||
|
||||
// Some time in the near future this will need refactoring :-)
|
||||
// XXX Note to self, IsSlice == inline node. Str == sha3 to node
|
||||
func (it *TrieIterator) workNode(currentNode *ethutil.Value) {
|
||||
if currentNode.Len() == 2 {
|
||||
k := CompactDecode(currentNode.Get(0).Str())
|
||||
func (self *Trie) Copy() *Trie {
|
||||
return New(self.roothash, self.cache.backend)
|
||||
}
|
||||
|
||||
if currentNode.Get(1).Str() == "" {
|
||||
it.workNode(currentNode.Get(1))
|
||||
// Legacy support
|
||||
func (self *Trie) Root() []byte { return self.Hash() }
|
||||
func (self *Trie) Hash() []byte {
|
||||
var hash []byte
|
||||
if self.root != nil {
|
||||
t := self.root.Hash()
|
||||
if byts, ok := t.([]byte); ok && len(byts) > 0 {
|
||||
hash = byts
|
||||
} else {
|
||||
if k[len(k)-1] == 16 {
|
||||
it.values = append(it.values, currentNode.Get(1).Str())
|
||||
} else {
|
||||
it.shas = append(it.shas, currentNode.Get(1).Bytes())
|
||||
it.getNode(currentNode.Get(1).Bytes())
|
||||
}
|
||||
hash = crypto.Sha3(ethutil.Encode(self.root.RlpData()))
|
||||
}
|
||||
} else {
|
||||
for i := 0; i < currentNode.Len(); i++ {
|
||||
if i == 16 && currentNode.Get(i).Len() != 0 {
|
||||
it.values = append(it.values, currentNode.Get(i).Str())
|
||||
} else {
|
||||
if currentNode.Get(i).Str() == "" {
|
||||
it.workNode(currentNode.Get(i))
|
||||
} else {
|
||||
val := currentNode.Get(i).Str()
|
||||
if val != "" {
|
||||
it.shas = append(it.shas, currentNode.Get(1).Bytes())
|
||||
it.getNode([]byte(val))
|
||||
}
|
||||
}
|
||||
}
|
||||
hash = crypto.Sha3(ethutil.Encode(""))
|
||||
}
|
||||
|
||||
if !bytes.Equal(hash, self.roothash) {
|
||||
self.revisions.PushBack(self.roothash)
|
||||
self.roothash = hash
|
||||
}
|
||||
|
||||
return hash
|
||||
}
|
||||
func (self *Trie) Commit() {
|
||||
self.mu.Lock()
|
||||
defer self.mu.Unlock()
|
||||
|
||||
// Hash first
|
||||
self.Hash()
|
||||
|
||||
self.cache.Flush()
|
||||
}
|
||||
|
||||
// Reset should only be called if the trie has been hashed
|
||||
func (self *Trie) Reset() {
|
||||
self.mu.Lock()
|
||||
defer self.mu.Unlock()
|
||||
|
||||
self.cache.Reset()
|
||||
|
||||
if self.revisions.Len() > 0 {
|
||||
revision := self.revisions.Remove(self.revisions.Back()).([]byte)
|
||||
self.roothash = revision
|
||||
}
|
||||
value := ethutil.NewValueFromBytes(self.cache.Get(self.roothash))
|
||||
self.root = self.mknode(value)
|
||||
}
|
||||
|
||||
func (self *Trie) UpdateString(key, value string) Node { return self.Update([]byte(key), []byte(value)) }
|
||||
func (self *Trie) Update(key, value []byte) Node {
|
||||
self.mu.Lock()
|
||||
defer self.mu.Unlock()
|
||||
|
||||
k := CompactHexDecode(string(key))
|
||||
|
||||
if len(value) != 0 {
|
||||
self.root = self.insert(self.root, k, &ValueNode{self, value})
|
||||
} else {
|
||||
self.root = self.delete(self.root, k)
|
||||
}
|
||||
|
||||
return self.root
|
||||
}
|
||||
|
||||
func (self *Trie) GetString(key string) []byte { return self.Get([]byte(key)) }
|
||||
func (self *Trie) Get(key []byte) []byte {
|
||||
self.mu.Lock()
|
||||
defer self.mu.Unlock()
|
||||
|
||||
k := CompactHexDecode(string(key))
|
||||
|
||||
n := self.get(self.root, k)
|
||||
if n != nil {
|
||||
return n.(*ValueNode).Val()
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (self *Trie) DeleteString(key string) Node { return self.Delete([]byte(key)) }
|
||||
func (self *Trie) Delete(key []byte) Node {
|
||||
self.mu.Lock()
|
||||
defer self.mu.Unlock()
|
||||
|
||||
k := CompactHexDecode(string(key))
|
||||
self.root = self.delete(self.root, k)
|
||||
|
||||
return self.root
|
||||
}
|
||||
|
||||
func (self *Trie) insert(node Node, key []byte, value Node) Node {
|
||||
if len(key) == 0 {
|
||||
return value
|
||||
}
|
||||
|
||||
if node == nil {
|
||||
return NewShortNode(self, key, value)
|
||||
}
|
||||
|
||||
switch node := node.(type) {
|
||||
case *ShortNode:
|
||||
k := node.Key()
|
||||
cnode := node.Value()
|
||||
if bytes.Equal(k, key) {
|
||||
return NewShortNode(self, key, value)
|
||||
}
|
||||
|
||||
var n Node
|
||||
matchlength := MatchingNibbleLength(key, k)
|
||||
if matchlength == len(k) {
|
||||
n = self.insert(cnode, key[matchlength:], value)
|
||||
} else {
|
||||
pnode := self.insert(nil, k[matchlength+1:], cnode)
|
||||
nnode := self.insert(nil, key[matchlength+1:], value)
|
||||
fulln := NewFullNode(self)
|
||||
fulln.set(k[matchlength], pnode)
|
||||
fulln.set(key[matchlength], nnode)
|
||||
n = fulln
|
||||
}
|
||||
if matchlength == 0 {
|
||||
return n
|
||||
}
|
||||
|
||||
return NewShortNode(self, key[:matchlength], n)
|
||||
|
||||
case *FullNode:
|
||||
cpy := node.Copy().(*FullNode)
|
||||
cpy.set(key[0], self.insert(node.branch(key[0]), key[1:], value))
|
||||
|
||||
return cpy
|
||||
|
||||
default:
|
||||
panic(fmt.Sprintf("%T: invalid node: %v", node, node))
|
||||
}
|
||||
}
|
||||
|
||||
func (it *TrieIterator) getNode(node []byte) {
|
||||
currentNode := it.trie.cache.Get(node)
|
||||
it.workNode(currentNode)
|
||||
}
|
||||
func (self *Trie) get(node Node, key []byte) Node {
|
||||
if len(key) == 0 {
|
||||
return node
|
||||
}
|
||||
|
||||
func (it *TrieIterator) Collect() [][]byte {
|
||||
if it.trie.Root == "" {
|
||||
if node == nil {
|
||||
return nil
|
||||
}
|
||||
|
||||
it.getNode(ethutil.NewValue(it.trie.Root).Bytes())
|
||||
switch node := node.(type) {
|
||||
case *ShortNode:
|
||||
k := node.Key()
|
||||
cnode := node.Value()
|
||||
|
||||
return it.shas
|
||||
}
|
||||
|
||||
func (it *TrieIterator) Purge() int {
|
||||
shas := it.Collect()
|
||||
for _, sha := range shas {
|
||||
it.trie.cache.Delete(sha)
|
||||
}
|
||||
return len(it.values)
|
||||
}
|
||||
|
||||
func (it *TrieIterator) Key() string {
|
||||
return ""
|
||||
}
|
||||
|
||||
func (it *TrieIterator) Value() string {
|
||||
return ""
|
||||
}
|
||||
|
||||
type EachCallback func(key string, node *ethutil.Value)
|
||||
|
||||
func (it *TrieIterator) Each(cb EachCallback) {
|
||||
it.fetchNode(nil, ethutil.NewValue(it.trie.Root).Bytes(), cb)
|
||||
}
|
||||
|
||||
func (it *TrieIterator) fetchNode(key []byte, node []byte, cb EachCallback) {
|
||||
it.iterateNode(key, it.trie.cache.Get(node), cb)
|
||||
}
|
||||
|
||||
func (it *TrieIterator) iterateNode(key []byte, currentNode *ethutil.Value, cb EachCallback) {
|
||||
if currentNode.Len() == 2 {
|
||||
k := CompactDecode(currentNode.Get(0).Str())
|
||||
|
||||
pk := append(key, k...)
|
||||
if currentNode.Get(1).Len() != 0 && currentNode.Get(1).Str() == "" {
|
||||
it.iterateNode(pk, currentNode.Get(1), cb)
|
||||
} else {
|
||||
if k[len(k)-1] == 16 {
|
||||
cb(DecodeCompact(pk), currentNode.Get(1))
|
||||
} else {
|
||||
it.fetchNode(pk, currentNode.Get(1).Bytes(), cb)
|
||||
}
|
||||
if len(key) >= len(k) && bytes.Equal(k, key[:len(k)]) {
|
||||
return self.get(cnode, key[len(k):])
|
||||
}
|
||||
} else {
|
||||
for i := 0; i < currentNode.Len(); i++ {
|
||||
pk := append(key, byte(i))
|
||||
if i == 16 && currentNode.Get(i).Len() != 0 {
|
||||
cb(DecodeCompact(pk), currentNode.Get(i))
|
||||
} else {
|
||||
if currentNode.Get(i).Len() != 0 && currentNode.Get(i).Str() == "" {
|
||||
it.iterateNode(pk, currentNode.Get(i), cb)
|
||||
|
||||
return nil
|
||||
case *FullNode:
|
||||
return self.get(node.branch(key[0]), key[1:])
|
||||
default:
|
||||
panic(fmt.Sprintf("%T: invalid node: %v", node, node))
|
||||
}
|
||||
}
|
||||
|
||||
func (self *Trie) delete(node Node, key []byte) Node {
|
||||
if len(key) == 0 && node == nil {
|
||||
return nil
|
||||
}
|
||||
|
||||
switch node := node.(type) {
|
||||
case *ShortNode:
|
||||
k := node.Key()
|
||||
cnode := node.Value()
|
||||
if bytes.Equal(key, k) {
|
||||
return nil
|
||||
} else if bytes.Equal(key[:len(k)], k) {
|
||||
child := self.delete(cnode, key[len(k):])
|
||||
|
||||
var n Node
|
||||
switch child := child.(type) {
|
||||
case *ShortNode:
|
||||
nkey := append(k, child.Key()...)
|
||||
n = NewShortNode(self, nkey, child.Value())
|
||||
case *FullNode:
|
||||
sn := NewShortNode(self, node.Key(), child)
|
||||
sn.key = node.key
|
||||
n = sn
|
||||
}
|
||||
|
||||
return n
|
||||
} else {
|
||||
return node
|
||||
}
|
||||
|
||||
case *FullNode:
|
||||
n := node.Copy().(*FullNode)
|
||||
n.set(key[0], self.delete(n.branch(key[0]), key[1:]))
|
||||
|
||||
pos := -1
|
||||
for i := 0; i < 17; i++ {
|
||||
if n.branch(byte(i)) != nil {
|
||||
if pos == -1 {
|
||||
pos = i
|
||||
} else {
|
||||
val := currentNode.Get(i).Str()
|
||||
if val != "" {
|
||||
it.fetchNode(pk, []byte(val), cb)
|
||||
}
|
||||
pos = -2
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
var nnode Node
|
||||
if pos == 16 {
|
||||
nnode = NewShortNode(self, []byte{16}, n.branch(byte(pos)))
|
||||
} else if pos >= 0 {
|
||||
cnode := n.branch(byte(pos))
|
||||
switch cnode := cnode.(type) {
|
||||
case *ShortNode:
|
||||
// Stitch keys
|
||||
k := append([]byte{byte(pos)}, cnode.Key()...)
|
||||
nnode = NewShortNode(self, k, cnode.Value())
|
||||
case *FullNode:
|
||||
nnode = NewShortNode(self, []byte{byte(pos)}, n.branch(byte(pos)))
|
||||
}
|
||||
} else {
|
||||
nnode = n
|
||||
}
|
||||
|
||||
return nnode
|
||||
case nil:
|
||||
return nil
|
||||
default:
|
||||
panic(fmt.Sprintf("%T: invalid node: %v (%v)", node, node, key))
|
||||
}
|
||||
}
|
||||
*/
|
||||
|
||||
// casting functions and cache storing
|
||||
func (self *Trie) mknode(value *ethutil.Value) Node {
|
||||
l := value.Len()
|
||||
switch l {
|
||||
case 0:
|
||||
return nil
|
||||
case 2:
|
||||
// A value node may consists of 2 bytes.
|
||||
if value.Get(0).Len() != 0 {
|
||||
return NewShortNode(self, CompactDecode(string(value.Get(0).Bytes())), self.mknode(value.Get(1)))
|
||||
}
|
||||
case 17:
|
||||
fnode := NewFullNode(self)
|
||||
for i := 0; i < l; i++ {
|
||||
fnode.set(byte(i), self.mknode(value.Get(i)))
|
||||
}
|
||||
return fnode
|
||||
case 32:
|
||||
return &HashNode{value.Bytes()}
|
||||
}
|
||||
|
||||
return &ValueNode{self, value.Bytes()}
|
||||
}
|
||||
|
||||
func (self *Trie) trans(node Node) Node {
|
||||
switch node := node.(type) {
|
||||
case *HashNode:
|
||||
value := ethutil.NewValueFromBytes(self.cache.Get(node.key))
|
||||
return self.mknode(value)
|
||||
default:
|
||||
return node
|
||||
}
|
||||
}
|
||||
|
||||
func (self *Trie) store(node Node) interface{} {
|
||||
data := ethutil.Encode(node)
|
||||
if len(data) >= 32 {
|
||||
key := crypto.Sha3(data)
|
||||
self.cache.Put(key, data)
|
||||
|
||||
return key
|
||||
}
|
||||
|
||||
return node.RlpData()
|
||||
}
|
||||
|
||||
func (self *Trie) PrintRoot() {
|
||||
fmt.Println(self.root)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,345 +1,76 @@
|
|||
package trie
|
||||
|
||||
/*
|
||||
import (
|
||||
"bytes"
|
||||
"encoding/hex"
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"math/rand"
|
||||
"net/http"
|
||||
"testing"
|
||||
"time"
|
||||
|
||||
checker "gopkg.in/check.v1"
|
||||
|
||||
"github.com/ethereum/go-ethereum/crypto"
|
||||
"github.com/ethereum/go-ethereum/ethutil"
|
||||
)
|
||||
|
||||
const LONG_WORD = "1234567890abcdefghijklmnopqrstuvwxxzABCEFGHIJKLMNOPQRSTUVWXYZ"
|
||||
type Db map[string][]byte
|
||||
|
||||
type TrieSuite struct {
|
||||
db *MemDatabase
|
||||
trie *Trie
|
||||
func (self Db) Get(k []byte) ([]byte, error) { return self[string(k)], nil }
|
||||
func (self Db) Put(k, v []byte) { self[string(k)] = v }
|
||||
|
||||
// Used for testing
|
||||
func NewEmpty() *Trie {
|
||||
return New(nil, make(Db))
|
||||
}
|
||||
|
||||
type MemDatabase struct {
|
||||
db map[string][]byte
|
||||
}
|
||||
|
||||
func NewMemDatabase() (*MemDatabase, error) {
|
||||
db := &MemDatabase{db: make(map[string][]byte)}
|
||||
return db, nil
|
||||
}
|
||||
func (db *MemDatabase) Put(key []byte, value []byte) {
|
||||
db.db[string(key)] = value
|
||||
}
|
||||
func (db *MemDatabase) Get(key []byte) ([]byte, error) {
|
||||
return db.db[string(key)], nil
|
||||
}
|
||||
func (db *MemDatabase) Delete(key []byte) error {
|
||||
delete(db.db, string(key))
|
||||
return nil
|
||||
}
|
||||
func (db *MemDatabase) Print() {}
|
||||
func (db *MemDatabase) Close() {}
|
||||
func (db *MemDatabase) LastKnownTD() []byte { return nil }
|
||||
|
||||
func NewTrie() (*MemDatabase, *Trie) {
|
||||
db, _ := NewMemDatabase()
|
||||
return db, New(db, "")
|
||||
}
|
||||
|
||||
func (s *TrieSuite) SetUpTest(c *checker.C) {
|
||||
s.db, s.trie = NewTrie()
|
||||
}
|
||||
|
||||
func (s *TrieSuite) TestTrieSync(c *checker.C) {
|
||||
s.trie.Update("dog", LONG_WORD)
|
||||
c.Assert(s.db.db, checker.HasLen, 0, checker.Commentf("Expected no data in database"))
|
||||
s.trie.Sync()
|
||||
c.Assert(s.db.db, checker.HasLen, 3)
|
||||
}
|
||||
|
||||
func (s *TrieSuite) TestTrieDirtyTracking(c *checker.C) {
|
||||
s.trie.Update("dog", LONG_WORD)
|
||||
c.Assert(s.trie.cache.IsDirty, checker.Equals, true, checker.Commentf("Expected no data in database"))
|
||||
|
||||
s.trie.Sync()
|
||||
c.Assert(s.trie.cache.IsDirty, checker.Equals, false, checker.Commentf("Expected trie to be dirty"))
|
||||
|
||||
s.trie.Update("test", LONG_WORD)
|
||||
s.trie.cache.Undo()
|
||||
c.Assert(s.trie.cache.IsDirty, checker.Equals, false)
|
||||
}
|
||||
|
||||
func (s *TrieSuite) TestTrieReset(c *checker.C) {
|
||||
s.trie.Update("cat", LONG_WORD)
|
||||
c.Assert(s.trie.cache.nodes, checker.HasLen, 1, checker.Commentf("Expected cached nodes"))
|
||||
|
||||
s.trie.cache.Undo()
|
||||
c.Assert(s.trie.cache.nodes, checker.HasLen, 0, checker.Commentf("Expected no nodes after undo"))
|
||||
}
|
||||
|
||||
func (s *TrieSuite) TestTrieGet(c *checker.C) {
|
||||
s.trie.Update("cat", LONG_WORD)
|
||||
x := s.trie.Get("cat")
|
||||
c.Assert(x, checker.DeepEquals, LONG_WORD)
|
||||
}
|
||||
|
||||
func (s *TrieSuite) TestTrieUpdating(c *checker.C) {
|
||||
s.trie.Update("cat", LONG_WORD)
|
||||
s.trie.Update("cat", LONG_WORD+"1")
|
||||
x := s.trie.Get("cat")
|
||||
c.Assert(x, checker.DeepEquals, LONG_WORD+"1")
|
||||
}
|
||||
|
||||
func (s *TrieSuite) TestTrieCmp(c *checker.C) {
|
||||
_, trie1 := NewTrie()
|
||||
_, trie2 := NewTrie()
|
||||
|
||||
trie1.Update("doge", LONG_WORD)
|
||||
trie2.Update("doge", LONG_WORD)
|
||||
c.Assert(trie1, checker.DeepEquals, trie2)
|
||||
|
||||
trie1.Update("dog", LONG_WORD)
|
||||
trie2.Update("cat", LONG_WORD)
|
||||
c.Assert(trie1, checker.Not(checker.DeepEquals), trie2)
|
||||
}
|
||||
|
||||
func (s *TrieSuite) TestTrieDelete(c *checker.C) {
|
||||
s.trie.Update("cat", LONG_WORD)
|
||||
exp := s.trie.Root
|
||||
s.trie.Update("dog", LONG_WORD)
|
||||
s.trie.Delete("dog")
|
||||
c.Assert(s.trie.Root, checker.DeepEquals, exp)
|
||||
|
||||
s.trie.Update("dog", LONG_WORD)
|
||||
exp = s.trie.Root
|
||||
s.trie.Update("dude", LONG_WORD)
|
||||
s.trie.Delete("dude")
|
||||
c.Assert(s.trie.Root, checker.DeepEquals, exp)
|
||||
}
|
||||
|
||||
func (s *TrieSuite) TestTrieDeleteWithValue(c *checker.C) {
|
||||
s.trie.Update("c", LONG_WORD)
|
||||
exp := s.trie.Root
|
||||
s.trie.Update("ca", LONG_WORD)
|
||||
s.trie.Update("cat", LONG_WORD)
|
||||
s.trie.Delete("ca")
|
||||
s.trie.Delete("cat")
|
||||
c.Assert(s.trie.Root, checker.DeepEquals, exp)
|
||||
}
|
||||
|
||||
func (s *TrieSuite) TestTriePurge(c *checker.C) {
|
||||
s.trie.Update("c", LONG_WORD)
|
||||
s.trie.Update("ca", LONG_WORD)
|
||||
s.trie.Update("cat", LONG_WORD)
|
||||
|
||||
lenBefore := len(s.trie.cache.nodes)
|
||||
it := s.trie.NewIterator()
|
||||
num := it.Purge()
|
||||
c.Assert(num, checker.Equals, 3)
|
||||
c.Assert(len(s.trie.cache.nodes), checker.Equals, lenBefore)
|
||||
}
|
||||
|
||||
func h(str string) string {
|
||||
d, err := hex.DecodeString(str)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
return string(d)
|
||||
}
|
||||
|
||||
func get(in string) (out string) {
|
||||
if len(in) > 2 && in[:2] == "0x" {
|
||||
out = h(in[2:])
|
||||
} else {
|
||||
out = in
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
type TrieTest struct {
|
||||
Name string
|
||||
In map[string]string
|
||||
Root string
|
||||
}
|
||||
|
||||
func CreateTest(name string, data []byte) (TrieTest, error) {
|
||||
t := TrieTest{Name: name}
|
||||
err := json.Unmarshal(data, &t)
|
||||
if err != nil {
|
||||
return TrieTest{}, fmt.Errorf("%v", err)
|
||||
}
|
||||
|
||||
return t, nil
|
||||
}
|
||||
|
||||
func CreateTests(uri string, cb func(TrieTest)) map[string]TrieTest {
|
||||
resp, err := http.Get(uri)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
|
||||
data, err := ioutil.ReadAll(resp.Body)
|
||||
|
||||
var objmap map[string]*json.RawMessage
|
||||
err = json.Unmarshal(data, &objmap)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
tests := make(map[string]TrieTest)
|
||||
for name, testData := range objmap {
|
||||
test, err := CreateTest(name, *testData)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
if cb != nil {
|
||||
cb(test)
|
||||
}
|
||||
tests[name] = test
|
||||
}
|
||||
|
||||
return tests
|
||||
}
|
||||
|
||||
func RandomData() [][]string {
|
||||
data := [][]string{
|
||||
{"0x000000000000000000000000ec4f34c97e43fbb2816cfd95e388353c7181dab1", "0x4e616d6552656700000000000000000000000000000000000000000000000000"},
|
||||
{"0x0000000000000000000000000000000000000000000000000000000000000045", "0x22b224a1420a802ab51d326e29fa98e34c4f24ea"},
|
||||
{"0x0000000000000000000000000000000000000000000000000000000000000046", "0x67706c2076330000000000000000000000000000000000000000000000000000"},
|
||||
{"0x000000000000000000000000697c7b8c961b56f675d570498424ac8de1a918f6", "0x6f6f6f6820736f2067726561742c207265616c6c6c793f000000000000000000"},
|
||||
{"0x0000000000000000000000007ef9e639e2733cb34e4dfc576d4b23f72db776b2", "0x4655474156000000000000000000000000000000000000000000000000000000"},
|
||||
{"0x6f6f6f6820736f2067726561742c207265616c6c6c793f000000000000000000", "0x697c7b8c961b56f675d570498424ac8de1a918f6"},
|
||||
{"0x4655474156000000000000000000000000000000000000000000000000000000", "0x7ef9e639e2733cb34e4dfc576d4b23f72db776b2"},
|
||||
{"0x4e616d6552656700000000000000000000000000000000000000000000000000", "0xec4f34c97e43fbb2816cfd95e388353c7181dab1"},
|
||||
}
|
||||
|
||||
var c [][]string
|
||||
for len(data) != 0 {
|
||||
e := rand.Intn(len(data))
|
||||
c = append(c, data[e])
|
||||
|
||||
copy(data[e:], data[e+1:])
|
||||
data[len(data)-1] = nil
|
||||
data = data[:len(data)-1]
|
||||
}
|
||||
|
||||
return c
|
||||
}
|
||||
|
||||
const MaxTest = 1000
|
||||
|
||||
// This test insert data in random order and seeks to find indifferences between the different tries
|
||||
func (s *TrieSuite) TestRegression(c *checker.C) {
|
||||
rand.Seed(time.Now().Unix())
|
||||
|
||||
roots := make(map[string]int)
|
||||
for i := 0; i < MaxTest; i++ {
|
||||
_, trie := NewTrie()
|
||||
data := RandomData()
|
||||
|
||||
for _, test := range data {
|
||||
trie.Update(test[0], test[1])
|
||||
}
|
||||
trie.Delete("0x4e616d6552656700000000000000000000000000000000000000000000000000")
|
||||
|
||||
roots[string(trie.Root.([]byte))] += 1
|
||||
}
|
||||
|
||||
c.Assert(len(roots) <= 1, checker.Equals, true)
|
||||
// if len(roots) > 1 {
|
||||
// for root, num := range roots {
|
||||
// t.Errorf("%x => %d\n", root, num)
|
||||
// }
|
||||
// }
|
||||
}
|
||||
|
||||
func (s *TrieSuite) TestDelete(c *checker.C) {
|
||||
s.trie.Update("a", "jeffreytestlongstring")
|
||||
s.trie.Update("aa", "otherstring")
|
||||
s.trie.Update("aaa", "othermorestring")
|
||||
s.trie.Update("aabbbbccc", "hithere")
|
||||
s.trie.Update("abbcccdd", "hstanoehutnaheoustnh")
|
||||
s.trie.Update("rnthaoeuabbcccdd", "hstanoehutnaheoustnh")
|
||||
s.trie.Update("rneuabbcccdd", "hstanoehutnaheoustnh")
|
||||
s.trie.Update("rneuabboeusntahoeucccdd", "hstanoehutnaheoustnh")
|
||||
s.trie.Update("rnxabboeusntahoeucccdd", "hstanoehutnaheoustnh")
|
||||
s.trie.Delete("aaboaestnuhbccc")
|
||||
s.trie.Delete("a")
|
||||
s.trie.Update("a", "nthaonethaosentuh")
|
||||
s.trie.Update("c", "shtaosntehua")
|
||||
s.trie.Delete("a")
|
||||
s.trie.Update("aaaa", "testmegood")
|
||||
|
||||
_, t2 := NewTrie()
|
||||
s.trie.NewIterator().Each(func(key string, v *ethutil.Value) {
|
||||
if key == "aaaa" {
|
||||
t2.Update(key, v.Str())
|
||||
} else {
|
||||
t2.Update(key, v.Str())
|
||||
}
|
||||
})
|
||||
|
||||
a := ethutil.NewValue(s.trie.Root).Bytes()
|
||||
b := ethutil.NewValue(t2.Root).Bytes()
|
||||
|
||||
c.Assert(a, checker.DeepEquals, b)
|
||||
}
|
||||
|
||||
func (s *TrieSuite) TestTerminator(c *checker.C) {
|
||||
key := CompactDecode("hello")
|
||||
c.Assert(HasTerm(key), checker.Equals, true, checker.Commentf("Expected %v to have a terminator", key))
|
||||
}
|
||||
|
||||
func (s *TrieSuite) TestIt(c *checker.C) {
|
||||
s.trie.Update("cat", "cat")
|
||||
s.trie.Update("doge", "doge")
|
||||
s.trie.Update("wallace", "wallace")
|
||||
it := s.trie.Iterator()
|
||||
|
||||
inputs := []struct {
|
||||
In, Out string
|
||||
}{
|
||||
{"", "cat"},
|
||||
{"bobo", "cat"},
|
||||
{"c", "cat"},
|
||||
{"car", "cat"},
|
||||
{"catering", "doge"},
|
||||
{"w", "wallace"},
|
||||
{"wallace123", ""},
|
||||
}
|
||||
|
||||
for _, test := range inputs {
|
||||
res := string(it.Next(test.In))
|
||||
c.Assert(res, checker.Equals, test.Out)
|
||||
func TestEmptyTrie(t *testing.T) {
|
||||
trie := NewEmpty()
|
||||
res := trie.Hash()
|
||||
exp := crypto.Sha3(ethutil.Encode(""))
|
||||
if !bytes.Equal(res, exp) {
|
||||
t.Errorf("expected %x got %x", exp, res)
|
||||
}
|
||||
}
|
||||
|
||||
func (s *TrieSuite) TestBeginsWith(c *checker.C) {
|
||||
a := CompactDecode("hello")
|
||||
b := CompactDecode("hel")
|
||||
func TestInsert(t *testing.T) {
|
||||
trie := NewEmpty()
|
||||
|
||||
c.Assert(BeginsWith(a, b), checker.Equals, false)
|
||||
c.Assert(BeginsWith(b, a), checker.Equals, true)
|
||||
trie.UpdateString("doe", "reindeer")
|
||||
trie.UpdateString("dog", "puppy")
|
||||
trie.UpdateString("dogglesworth", "cat")
|
||||
|
||||
exp := ethutil.Hex2Bytes("8aad789dff2f538bca5d8ea56e8abe10f4c7ba3a5dea95fea4cd6e7c3a1168d3")
|
||||
root := trie.Hash()
|
||||
if !bytes.Equal(root, exp) {
|
||||
t.Errorf("exp %x got %x", exp, root)
|
||||
}
|
||||
|
||||
trie = NewEmpty()
|
||||
trie.UpdateString("A", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
|
||||
|
||||
exp = ethutil.Hex2Bytes("d23786fb4a010da3ce639d66d5e904a11dbc02746d1ce25029e53290cabf28ab")
|
||||
root = trie.Hash()
|
||||
if !bytes.Equal(root, exp) {
|
||||
t.Errorf("exp %x got %x", exp, root)
|
||||
}
|
||||
}
|
||||
|
||||
func (s *TrieSuite) TestItems(c *checker.C) {
|
||||
s.trie.Update("A", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
|
||||
exp := "d23786fb4a010da3ce639d66d5e904a11dbc02746d1ce25029e53290cabf28ab"
|
||||
func TestGet(t *testing.T) {
|
||||
trie := NewEmpty()
|
||||
|
||||
c.Assert(s.trie.GetRoot(), checker.DeepEquals, ethutil.Hex2Bytes(exp))
|
||||
trie.UpdateString("doe", "reindeer")
|
||||
trie.UpdateString("dog", "puppy")
|
||||
trie.UpdateString("dogglesworth", "cat")
|
||||
|
||||
res := trie.GetString("dog")
|
||||
if !bytes.Equal(res, []byte("puppy")) {
|
||||
t.Errorf("expected puppy got %x", res)
|
||||
}
|
||||
|
||||
unknown := trie.GetString("unknown")
|
||||
if unknown != nil {
|
||||
t.Errorf("expected nil got %x", unknown)
|
||||
}
|
||||
}
|
||||
|
||||
func TestOtherSomething(t *testing.T) {
|
||||
_, trie := NewTrie()
|
||||
func TestDelete(t *testing.T) {
|
||||
trie := NewEmpty()
|
||||
|
||||
vals := []struct{ k, v string }{
|
||||
{"do", "verb"},
|
||||
|
|
@ -352,18 +83,46 @@ func TestOtherSomething(t *testing.T) {
|
|||
{"shaman", ""},
|
||||
}
|
||||
for _, val := range vals {
|
||||
trie.Update(val.k, val.v)
|
||||
if val.v != "" {
|
||||
trie.UpdateString(val.k, val.v)
|
||||
} else {
|
||||
trie.DeleteString(val.k)
|
||||
}
|
||||
}
|
||||
|
||||
hash := trie.Hash()
|
||||
exp := ethutil.Hex2Bytes("5991bb8c6514148a29db676a14ac506cd2cd5775ace63c30a4fe457715e9ac84")
|
||||
hash := trie.Root.([]byte)
|
||||
if !bytes.Equal(hash, exp) {
|
||||
t.Errorf("expected %x got %x", exp, hash)
|
||||
}
|
||||
}
|
||||
|
||||
func BenchmarkGets(b *testing.B) {
|
||||
_, trie := NewTrie()
|
||||
func TestEmptyValues(t *testing.T) {
|
||||
trie := NewEmpty()
|
||||
|
||||
vals := []struct{ k, v string }{
|
||||
{"do", "verb"},
|
||||
{"ether", "wookiedoo"},
|
||||
{"horse", "stallion"},
|
||||
{"shaman", "horse"},
|
||||
{"doge", "coin"},
|
||||
{"ether", ""},
|
||||
{"dog", "puppy"},
|
||||
{"shaman", ""},
|
||||
}
|
||||
for _, val := range vals {
|
||||
trie.UpdateString(val.k, val.v)
|
||||
}
|
||||
|
||||
hash := trie.Hash()
|
||||
exp := ethutil.Hex2Bytes("5991bb8c6514148a29db676a14ac506cd2cd5775ace63c30a4fe457715e9ac84")
|
||||
if !bytes.Equal(hash, exp) {
|
||||
t.Errorf("expected %x got %x", exp, hash)
|
||||
}
|
||||
}
|
||||
|
||||
func TestReplication(t *testing.T) {
|
||||
trie := NewEmpty()
|
||||
vals := []struct{ k, v string }{
|
||||
{"do", "verb"},
|
||||
{"ether", "wookiedoo"},
|
||||
|
|
@ -376,21 +135,125 @@ func BenchmarkGets(b *testing.B) {
|
|||
{"somethingveryoddindeedthis is", "myothernodedata"},
|
||||
}
|
||||
for _, val := range vals {
|
||||
trie.Update(val.k, val.v)
|
||||
trie.UpdateString(val.k, val.v)
|
||||
}
|
||||
trie.Commit()
|
||||
|
||||
trie2 := New(trie.roothash, trie.cache.backend)
|
||||
if string(trie2.GetString("horse")) != "stallion" {
|
||||
t.Error("expected to have horse => stallion")
|
||||
}
|
||||
|
||||
hash := trie2.Hash()
|
||||
exp := trie.Hash()
|
||||
if !bytes.Equal(hash, exp) {
|
||||
t.Errorf("root failure. expected %x got %x", exp, hash)
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
func TestReset(t *testing.T) {
|
||||
trie := NewEmpty()
|
||||
vals := []struct{ k, v string }{
|
||||
{"do", "verb"},
|
||||
{"ether", "wookiedoo"},
|
||||
{"horse", "stallion"},
|
||||
}
|
||||
for _, val := range vals {
|
||||
trie.UpdateString(val.k, val.v)
|
||||
}
|
||||
trie.Commit()
|
||||
|
||||
before := ethutil.CopyBytes(trie.roothash)
|
||||
trie.UpdateString("should", "revert")
|
||||
trie.Hash()
|
||||
// Should have no effect
|
||||
trie.Hash()
|
||||
trie.Hash()
|
||||
// ###
|
||||
|
||||
trie.Reset()
|
||||
after := ethutil.CopyBytes(trie.roothash)
|
||||
|
||||
if !bytes.Equal(before, after) {
|
||||
t.Errorf("expected roots to be equal. %x - %x", before, after)
|
||||
}
|
||||
}
|
||||
|
||||
func TestParanoia(t *testing.T) {
|
||||
t.Skip()
|
||||
trie := NewEmpty()
|
||||
|
||||
vals := []struct{ k, v string }{
|
||||
{"do", "verb"},
|
||||
{"ether", "wookiedoo"},
|
||||
{"horse", "stallion"},
|
||||
{"shaman", "horse"},
|
||||
{"doge", "coin"},
|
||||
{"ether", ""},
|
||||
{"dog", "puppy"},
|
||||
{"shaman", ""},
|
||||
{"somethingveryoddindeedthis is", "myothernodedata"},
|
||||
}
|
||||
for _, val := range vals {
|
||||
trie.UpdateString(val.k, val.v)
|
||||
}
|
||||
trie.Commit()
|
||||
|
||||
ok, t2 := ParanoiaCheck(trie, trie.cache.backend)
|
||||
if !ok {
|
||||
t.Errorf("trie paranoia check failed %x %x", trie.roothash, t2.roothash)
|
||||
}
|
||||
}
|
||||
|
||||
// Not an actual test
|
||||
func TestOutput(t *testing.T) {
|
||||
t.Skip()
|
||||
|
||||
base := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
||||
trie := NewEmpty()
|
||||
for i := 0; i < 50; i++ {
|
||||
trie.UpdateString(fmt.Sprintf("%s%d", base, i), "valueeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee")
|
||||
}
|
||||
fmt.Println("############################## FULL ################################")
|
||||
fmt.Println(trie.root)
|
||||
|
||||
trie.Commit()
|
||||
fmt.Println("############################## SMALL ################################")
|
||||
trie2 := New(trie.roothash, trie.cache.backend)
|
||||
trie2.GetString(base + "20")
|
||||
fmt.Println(trie2.root)
|
||||
}
|
||||
|
||||
func BenchmarkGets(b *testing.B) {
|
||||
trie := NewEmpty()
|
||||
vals := []struct{ k, v string }{
|
||||
{"do", "verb"},
|
||||
{"ether", "wookiedoo"},
|
||||
{"horse", "stallion"},
|
||||
{"shaman", "horse"},
|
||||
{"doge", "coin"},
|
||||
{"ether", ""},
|
||||
{"dog", "puppy"},
|
||||
{"shaman", ""},
|
||||
{"somethingveryoddindeedthis is", "myothernodedata"},
|
||||
}
|
||||
for _, val := range vals {
|
||||
trie.UpdateString(val.k, val.v)
|
||||
}
|
||||
|
||||
b.ResetTimer()
|
||||
for i := 0; i < b.N; i++ {
|
||||
trie.Get("horse")
|
||||
trie.Get([]byte("horse"))
|
||||
}
|
||||
}
|
||||
|
||||
func BenchmarkUpdate(b *testing.B) {
|
||||
_, trie := NewTrie()
|
||||
trie := NewEmpty()
|
||||
|
||||
b.ResetTimer()
|
||||
for i := 0; i < b.N; i++ {
|
||||
trie.Update(fmt.Sprintf("aaaaaaaaaaaaaaa%d", i), "value")
|
||||
trie.UpdateString(fmt.Sprintf("aaaaaaaaa%d", i), "value")
|
||||
}
|
||||
trie.Hash()
|
||||
}
|
||||
*/
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
package ptrie
|
||||
package trie
|
||||
|
||||
type ValueNode struct {
|
||||
trie *Trie
|
||||
|
|
@ -1 +0,0 @@
|
|||
package types
|
||||
Loading…
Reference in New Issue