-
Notifications
You must be signed in to change notification settings - Fork 3
/
mavl.go
234 lines (213 loc) · 6.64 KB
/
mavl.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
// Copyright Fuzamei Corp. 2018 All Rights Reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package mavl 默克尔平衡树接口
package mavl
import (
"sync"
"github.com/assetcloud/chain/common"
clog "github.com/assetcloud/chain/common/log"
log "github.com/assetcloud/chain/common/log/log15"
"github.com/assetcloud/chain/queue"
drivers "github.com/assetcloud/chain/system/store"
mavl "github.com/assetcloud/chain/system/store/mavl/db"
"github.com/assetcloud/chain/types"
)
var mlog = log.New("module", "mavl")
// SetLogLevel set log level
func SetLogLevel(level string) {
clog.SetLogLevel(level)
}
// DisableLog disable log
func DisableLog() {
mlog.SetHandler(log.DiscardHandler())
}
// Store mavl store struct
type Store struct {
*drivers.BaseStore
trees *sync.Map
treeCfg *mavl.TreeConfig
}
func init() {
drivers.Reg("mavl", New)
}
type subConfig struct {
// 是否使能mavl加前缀
EnableMavlPrefix bool `json:"enableMavlPrefix"`
EnableMVCC bool `json:"enableMVCC"`
// 是否使能mavl数据裁剪
EnableMavlPrune bool `json:"enableMavlPrune"`
// 裁剪高度间隔
PruneHeight int32 `json:"pruneHeight"`
// 是否使能内存树
EnableMemTree bool `json:"enableMemTree"`
// 是否使能内存树中叶子节点
EnableMemVal bool `json:"enableMemVal"`
// 缓存close ticket数目
TkCloseCacheLen int32 `json:"tkCloseCacheLen"`
}
// New new mavl store module
func New(cfg *types.Store, sub []byte, chaincfg *types.ChainConfig) queue.Module {
bs := drivers.NewBaseStore(cfg)
var subcfg subConfig
if sub != nil {
types.MustDecode(sub, &subcfg)
}
// 开启裁剪需要同时开启前缀树
if subcfg.EnableMavlPrune {
subcfg.EnableMavlPrefix = subcfg.EnableMavlPrune
}
treeCfg := &mavl.TreeConfig{
EnableMavlPrefix: subcfg.EnableMavlPrefix,
EnableMVCC: subcfg.EnableMVCC,
EnableMavlPrune: subcfg.EnableMavlPrune,
PruneHeight: subcfg.PruneHeight,
EnableMemTree: subcfg.EnableMemTree,
EnableMemVal: subcfg.EnableMemVal,
TkCloseCacheLen: subcfg.TkCloseCacheLen,
}
mavls := &Store{bs, &sync.Map{}, treeCfg}
mavl.InitGlobalMem(treeCfg)
bs.SetChild(mavls)
return mavls
}
// Close close mavl store
func (mavls *Store) Close() {
mavl.ClosePrune()
mavls.BaseStore.Close()
mlog.Info("store mavl closed")
}
// Set set k v to mavl store db; sync is true represent write sync
func (mavls *Store) Set(datas *types.StoreSet, sync bool) ([]byte, error) {
return mavl.SetKVPair(mavls.GetDB(), datas, sync, mavls.treeCfg)
}
// Get get values by keys
func (mavls *Store) Get(datas *types.StoreGet) [][]byte {
var tree *mavl.Tree
var err error
values := make([][]byte, len(datas.Keys))
search := string(datas.StateHash)
if data, ok := mavls.trees.Load(search); ok && data != nil {
tree = data.(*mavl.Tree)
} else {
tree = mavl.NewTree(mavls.GetDB(), true, mavls.treeCfg)
//get接口也应该传入高度
//tree.SetBlockHeight(datas.Height)
err = tree.Load(datas.StateHash)
mlog.Debug("store mavl get tree", "err", err, "StateHash", common.ToHex(datas.StateHash))
}
if err == nil {
for i := 0; i < len(datas.Keys); i++ {
_, value, exit := tree.Get(datas.Keys[i])
if exit {
values[i] = value
}
}
}
return values
}
// MemSet set keys values to memcory mavl, return root hash and error
func (mavls *Store) MemSet(datas *types.StoreSet, sync bool) ([]byte, error) {
beg := types.Now()
defer func() {
mlog.Debug("MemSet", "cost", types.Since(beg))
}()
if len(datas.KV) == 0 {
mlog.Info("store mavl memset,use preStateHash as stateHash for kvset is null")
mavls.trees.Store(string(datas.StateHash), nil)
return datas.StateHash, nil
}
tree := mavl.NewTree(mavls.GetDB(), sync, mavls.treeCfg)
tree.SetBlockHeight(datas.Height)
err := tree.Load(datas.StateHash)
if err != nil {
return nil, err
}
for i := 0; i < len(datas.KV); i++ {
tree.Set(datas.KV[i].Key, datas.KV[i].Value)
}
hash := tree.Hash()
mavls.trees.Store(string(hash), tree)
return hash, nil
}
// Commit convert memcory mavl to storage db
func (mavls *Store) Commit(req *types.ReqHash) ([]byte, error) {
beg := types.Now()
defer func() {
mlog.Debug("Commit", "cost", types.Since(beg))
}()
tree, ok := mavls.trees.Load(string(req.Hash))
if !ok {
mlog.Error("store mavl commit", "err", types.ErrHashNotFound)
return nil, types.ErrHashNotFound
}
if tree == nil {
mlog.Info("store mavl commit,do nothing for kvset is null")
mavls.trees.Delete(string(req.Hash))
return req.Hash, nil
}
hash := tree.(*mavl.Tree).Save()
if hash == nil {
mlog.Error("store mavl commit", "err", types.ErrHashNotFound)
return nil, types.ErrDataBaseDamage
}
mavls.trees.Delete(string(req.Hash))
return req.Hash, nil
}
// MemSetUpgrade cacl mavl, but not store tree, return root hash and error
func (mavls *Store) MemSetUpgrade(datas *types.StoreSet, sync bool) ([]byte, error) {
beg := types.Now()
defer func() {
mlog.Debug("MemSet", "cost", types.Since(beg))
}()
if len(datas.KV) == 0 {
mlog.Info("store mavl memset,use preStateHash as stateHash for kvset is null")
mavls.trees.Store(string(datas.StateHash), nil)
return datas.StateHash, nil
}
tree := mavl.NewTree(mavls.GetDB(), sync, mavls.treeCfg)
tree.SetBlockHeight(datas.Height)
err := tree.Load(datas.StateHash)
if err != nil {
return nil, err
}
for i := 0; i < len(datas.KV); i++ {
tree.Set(datas.KV[i].Key, datas.KV[i].Value)
}
hash := tree.Hash()
return hash, nil
}
// CommitUpgrade convert memcory mavl to storage db
func (mavls *Store) CommitUpgrade(req *types.ReqHash) ([]byte, error) {
return req.Hash, nil
}
// Rollback 回退将缓存的mavl树删除掉
func (mavls *Store) Rollback(req *types.ReqHash) ([]byte, error) {
beg := types.Now()
defer func() {
mlog.Debug("Rollback", "cost", types.Since(beg))
}()
_, ok := mavls.trees.Load(string(req.Hash))
if !ok {
mlog.Error("store mavl rollback", "err", types.ErrHashNotFound)
return nil, types.ErrHashNotFound
}
mavls.trees.Delete(string(req.Hash))
return req.Hash, nil
}
// IterateRangeByStateHash 迭代实现功能; statehash:当前状态hash, start:开始查找的key, end: 结束的key, ascending:升序,降序, fn 迭代回调函数
func (mavls *Store) IterateRangeByStateHash(statehash []byte, start []byte, end []byte, ascending bool, fn func(key, value []byte) bool) {
mavl.IterateRangeByStateHash(mavls.GetDB(), statehash, start, end, ascending, mavls.treeCfg, fn)
}
// ProcEvent not support message
func (mavls *Store) ProcEvent(msg *queue.Message) {
if msg == nil {
return
}
msg.ReplyErr("Store", types.ErrActionNotSupport)
}
// Del ...
func (mavls *Store) Del(req *types.StoreDel) ([]byte, error) {
//not support
return nil, nil
}