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@ -1,3 +1,9 @@ |
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/* |
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This tree is not concurrency safe. |
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If you want to use it from multiple goroutines, you need to wrap all calls to *IAVLTree |
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with a mutex. |
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*/ |
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package merkle |
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package merkle |
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import ( |
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import ( |
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@ -29,65 +35,81 @@ func NewIAVLTreeFromHash(db Db, hash ByteSlice) *IAVLTree { |
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return &IAVLTree{db:db, root:root} |
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return &IAVLTree{db:db, root:root} |
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} |
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} |
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func (self *IAVLTree) Root() Node { |
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return self.root |
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func (t *IAVLTree) Root() Node { |
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return t.root |
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} |
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} |
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func (self *IAVLTree) Size() uint64 { |
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if self.root == nil { return 0 } |
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return self.root.Size() |
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func (t *IAVLTree) Size() uint64 { |
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if t.root == nil { return 0 } |
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return t.root.Size() |
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} |
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} |
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func (self *IAVLTree) Height() uint8 { |
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if self.root == nil { return 0 } |
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return self.root.Height() |
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func (t *IAVLTree) Height() uint8 { |
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if t.root == nil { return 0 } |
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return t.root.Height() |
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} |
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} |
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func (self *IAVLTree) Has(key Key) bool { |
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if self.root == nil { return false } |
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return self.root.has(self.db, key) |
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func (t *IAVLTree) Has(key Key) bool { |
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if t.root == nil { return false } |
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return t.root.has(t.db, key) |
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} |
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} |
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func (self *IAVLTree) Put(key Key, value Value) (updated bool) { |
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if self.root == nil { |
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self.root = NewIAVLNode(key, value) |
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func (t *IAVLTree) Put(key Key, value Value) (updated bool) { |
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if t.root == nil { |
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t.root = NewIAVLNode(key, value) |
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return false |
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return false |
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} |
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} |
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self.root, updated = self.root.put(self.db, key, value) |
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t.root, updated = t.root.put(t.db, key, value) |
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return updated |
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return updated |
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} |
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} |
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func (self *IAVLTree) Hash() (ByteSlice, uint64) { |
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if self.root == nil { return nil, 0 } |
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return self.root.Hash() |
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func (t *IAVLTree) Hash() (ByteSlice, uint64) { |
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if t.root == nil { return nil, 0 } |
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return t.root.Hash() |
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} |
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} |
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func (self *IAVLTree) Save() { |
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if self.root == nil { return } |
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if self.root.hash == nil { |
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self.root.Hash() |
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func (t *IAVLTree) Save() { |
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if t.root == nil { return } |
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if t.root.hash == nil { |
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t.root.Hash() |
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} |
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} |
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self.root.Save(self.db) |
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t.root.Save(t.db) |
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} |
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} |
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func (self *IAVLTree) Get(key Key) (value Value) { |
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if self.root == nil { return nil } |
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return self.root.get(self.db, key) |
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func (t *IAVLTree) Get(key Key) (value Value) { |
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if t.root == nil { return nil } |
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return t.root.get(t.db, key) |
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} |
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} |
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func (self *IAVLTree) Remove(key Key) (value Value, err error) { |
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if self.root == nil { return nil, NotFound(key) } |
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newRoot, _, value, err := self.root.remove(self.db, key) |
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func (t *IAVLTree) Remove(key Key) (value Value, err error) { |
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if t.root == nil { return nil, NotFound(key) } |
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newRoot, _, value, err := t.root.remove(t.db, key) |
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if err != nil { |
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if err != nil { |
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return nil, err |
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return nil, err |
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} |
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} |
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self.root = newRoot |
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t.root = newRoot |
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return value, nil |
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return value, nil |
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} |
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} |
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func (self *IAVLTree) Traverse(cb func(Node) bool) { |
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if self.root == nil { return } |
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self.root.traverse(self.db, cb) |
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func (t *IAVLTree) Copy() Tree { |
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return &IAVLTree{db:t.db, root:t.root} |
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} |
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func (t *IAVLTree) Traverse(cb func(Node) bool) { |
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if t.root == nil { return } |
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t.root.traverse(t.db, cb) |
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} |
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func (t *IAVLTree) Values() <-chan Value { |
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root := t.root |
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ch := make(chan Value) |
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go func() { |
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root.traverse(func(n Node) { |
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if n.Height() == 0 { ch <- n.Value() } |
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}) |
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close(ch) |
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} |
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return ch |
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} |
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} |
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