/
stxo.go
149 lines (130 loc) · 2.97 KB
/
stxo.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
package bdb
import (
"encoding/json"
"sync"
"github.com/btcsuite/btcd/chaincfg/chainhash"
"github.com/dev-warrior777/go-electrum-client/wallet"
bolt "go.etcd.io/bbolt"
)
type StxoDB struct {
db *bolt.DB
lock *sync.RWMutex
}
func (s *StxoDB) Put(stxo wallet.Stxo) error {
utxo := stxo.Utxo
outPointstr := utxo.Op.String()
srec := stxoRec{
OutPoint: outPointstr,
AtHeight: utxo.AtHeight,
Value: utxo.Value,
ScriptPubkey: utxo.ScriptPubkey,
WatchOnly: utxo.WatchOnly,
Frozen: utxo.Frozen,
SpendHeight: stxo.SpendHeight,
SpendTxid: stxo.SpendTxid.String(),
}
return s.put(&srec)
}
func (s *StxoDB) GetAll() ([]wallet.Stxo, error) {
srecList, err := s.getAll()
if err != nil {
return nil, err
}
ret := []wallet.Stxo{}
for _, srec := range srecList {
outPoint, err := wallet.NewOutPointFromString(srec.OutPoint)
if err != nil {
return nil, err
}
spendTxid, err := chainhash.NewHashFromStr(srec.SpendTxid)
if err != nil {
return nil, err
}
stxo := wallet.Stxo{
Utxo: wallet.Utxo{
Op: *outPoint,
AtHeight: srec.AtHeight,
Value: srec.Value,
ScriptPubkey: srec.ScriptPubkey,
WatchOnly: srec.WatchOnly,
Frozen: srec.Frozen,
},
SpendHeight: srec.SpendHeight,
SpendTxid: *spendTxid,
}
ret = append(ret, stxo)
}
return ret, nil
}
func (s *StxoDB) Delete(stxo wallet.Stxo) error {
utxo := stxo.Utxo
outPointstr := utxo.Op.String()
return s.delete(outPointstr)
}
// DB access record
type stxoRec struct {
// UTXO
// Unique key - Used as K & V[OutPoint]
OutPoint string `json:"outpoint"`
AtHeight int64 `json:"height"`
Value int64 `json:"value"`
ScriptPubkey []byte `json:"pkscript"`
WatchOnly bool `json:"watch_only"`
Frozen bool `json:"frozen"`
// STXO
SpendHeight int64 `json:"spend_height"`
SpendTxid string `json:"spend_txid"`
}
func (s *StxoDB) put(srec *stxoRec) error {
s.lock.Lock()
defer s.lock.Unlock()
key := []byte(srec.OutPoint)
value, err := json.Marshal(srec)
if err != nil {
return err
}
e := s.db.Update(func(tx *bolt.Tx) error {
b := tx.Bucket(stxosBkt)
if b == nil {
return ErrBucketNotFound
}
err := b.Put(key, value)
return err
})
return e
}
func (s *StxoDB) getAll() ([]stxoRec, error) {
s.lock.RLock()
defer s.lock.RUnlock()
var srecList []stxoRec
e := s.db.View(func(tx *bolt.Tx) error {
b := tx.Bucket(stxosBkt)
if b == nil {
return ErrBucketNotFound
}
c := b.Cursor()
for k, v := c.First(); k != nil; k, v = c.Next() {
var srec stxoRec
err := json.Unmarshal(v, &srec)
if err != nil {
return err
}
srecList = append(srecList, srec)
}
return nil
})
return srecList, e
}
func (s *StxoDB) delete(outPoint string) error {
s.lock.Lock()
defer s.lock.Unlock()
key := []byte(outPoint)
e := s.db.Update(func(tx *bolt.Tx) error {
b := tx.Bucket(stxosBkt)
if b == nil {
return ErrBucketNotFound
}
return b.Delete(key)
})
return e
}