/
tree.go
179 lines (137 loc) · 3.67 KB
/
tree.go
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package state
import (
"github.com/danil-lashin/iavl"
dbm "github.com/tendermint/tendermint/libs/db"
"sync"
)
type Tree interface {
Get(key []byte) (index int64, value []byte)
Set(key, value []byte) bool
Remove(key []byte) ([]byte, bool)
LoadVersion(targetVersion int64) (int64, error)
LazyLoadVersion(targetVersion int64) (int64, error)
SaveVersion() ([]byte, int64, error)
DeleteVersion(version int64) error
GetImmutable() *ImmutableTree
GetImmutableAtHeight(version int64) (*ImmutableTree, error)
Version() int64
Hash() []byte
Iterate(fn func(key []byte, value []byte) bool) (stopped bool)
}
func NewMutableTree(db dbm.DB) *MutableTree {
return &MutableTree{
tree: iavl.NewMutableTree(db, 1024),
}
}
type MutableTree struct {
tree *iavl.MutableTree
lock sync.RWMutex
}
func (t *MutableTree) GetImmutableAtHeight(version int64) (*ImmutableTree, error) {
tree, err := t.tree.GetImmutable(version)
if err != nil {
return nil, err
}
return &ImmutableTree{
tree: tree,
}, nil
}
func (t *MutableTree) Iterate(fn func(key []byte, value []byte) bool) (stopped bool) {
return t.tree.Iterate(fn)
}
func (t *MutableTree) Hash() []byte {
t.lock.RLock()
defer t.lock.RUnlock()
return t.tree.Hash()
}
func (t *MutableTree) Version() int64 {
t.lock.RLock()
defer t.lock.RUnlock()
return t.tree.Version()
}
func (t *MutableTree) GetImmutable() *ImmutableTree {
t.lock.RLock()
defer t.lock.RUnlock()
return &ImmutableTree{
tree: t.tree.ImmutableTree,
}
}
func (t *MutableTree) Get(key []byte) (index int64, value []byte) {
t.lock.RLock()
defer t.lock.RUnlock()
return t.tree.Get(key)
}
func (t *MutableTree) Set(key, value []byte) bool {
t.lock.Lock()
defer t.lock.Unlock()
return t.tree.Set(key, value)
}
func (t *MutableTree) Remove(key []byte) ([]byte, bool) {
t.lock.Lock()
defer t.lock.Unlock()
return t.tree.Remove(key)
}
func (t *MutableTree) LoadVersion(targetVersion int64) (int64, error) {
t.lock.Lock()
defer t.lock.Unlock()
return t.tree.LoadVersion(targetVersion)
}
func (t *MutableTree) LazyLoadVersion(targetVersion int64) (int64, error) {
t.lock.Lock()
defer t.lock.Unlock()
return t.tree.LazyLoadVersion(targetVersion)
}
func (t *MutableTree) SaveVersion() ([]byte, int64, error) {
t.lock.Lock()
defer t.lock.Unlock()
return t.tree.SaveVersion()
}
func (t *MutableTree) DeleteVersion(version int64) error {
t.lock.Lock()
defer t.lock.Unlock()
return t.tree.DeleteVersion(version)
}
func NewImmutableTree(db dbm.DB) *ImmutableTree {
return &ImmutableTree{
tree: iavl.NewImmutableTree(db, 1024),
}
}
type ImmutableTree struct {
tree *iavl.ImmutableTree
}
func (t *ImmutableTree) Iterate(fn func(key []byte, value []byte) bool) (stopped bool) {
return t.tree.Iterate(fn)
}
func (t *ImmutableTree) Hash() []byte {
return t.tree.Hash()
}
func (t *ImmutableTree) Version() int64 {
return t.tree.Version()
}
func (t *ImmutableTree) GetImmutable() *ImmutableTree {
return t
}
func (t *ImmutableTree) Get(key []byte) (index int64, value []byte) {
return t.tree.Get(key)
}
func (t *ImmutableTree) GetImmutableAtHeight(version int64) (*ImmutableTree, error) {
panic("Not implemented")
}
func (t *ImmutableTree) Set(key, value []byte) bool {
panic("Not implemented")
}
func (t *ImmutableTree) Remove(key []byte) ([]byte, bool) {
panic("Not implemented")
}
func (t *ImmutableTree) LoadVersion(targetVersion int64) (int64, error) {
panic("Not implemented")
}
func (t *ImmutableTree) LazyLoadVersion(targetVersion int64) (int64, error) {
panic("Not implemented")
}
func (t *ImmutableTree) SaveVersion() ([]byte, int64, error) {
panic("Not implemented")
}
func (t *ImmutableTree) DeleteVersion(version int64) error {
panic("Not implemented")
}