-
Notifications
You must be signed in to change notification settings - Fork 175
/
account_info.go
245 lines (211 loc) · 5.38 KB
/
account_info.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
235
236
237
238
239
240
241
242
243
244
245
package environment
import (
"fmt"
"github.com/onflow/cadence"
"github.com/onflow/cadence/runtime/common"
"github.com/onflow/flow-go/fvm/state"
"github.com/onflow/flow-go/model/flow"
"github.com/onflow/flow-go/module/trace"
)
// AccountInfo exposes various account balance and storage statistics.
type AccountInfo interface {
GetStorageUsed(address common.Address) (uint64, error)
GetStorageCapacity(address common.Address) (uint64, error)
GetAccountBalance(address common.Address) (uint64, error)
GetAccountAvailableBalance(address common.Address) (uint64, error)
GetAccount(address flow.Address) (*flow.Account, error)
}
type ParseRestrictedAccountInfo struct {
txnState *state.TransactionState
impl AccountInfo
}
func NewParseRestrictedAccountInfo(
txnState *state.TransactionState,
impl AccountInfo,
) AccountInfo {
return ParseRestrictedAccountInfo{
txnState: txnState,
impl: impl,
}
}
func (info ParseRestrictedAccountInfo) GetStorageUsed(
address common.Address,
) (
uint64,
error,
) {
return parseRestrict1Arg1Ret(
info.txnState,
"GetStorageUsed",
info.impl.GetStorageUsed,
address)
}
func (info ParseRestrictedAccountInfo) GetStorageCapacity(
address common.Address,
) (
uint64,
error,
) {
return parseRestrict1Arg1Ret(
info.txnState,
"GetStorageCapacity",
info.impl.GetStorageCapacity,
address)
}
func (info ParseRestrictedAccountInfo) GetAccountBalance(
address common.Address,
) (
uint64,
error,
) {
return parseRestrict1Arg1Ret(
info.txnState,
"GetAccountBalance",
info.impl.GetAccountBalance,
address)
}
func (info ParseRestrictedAccountInfo) GetAccountAvailableBalance(
address common.Address,
) (
uint64,
error,
) {
return parseRestrict1Arg1Ret(
info.txnState,
"GetAccountAvailableBalance",
info.impl.GetAccountAvailableBalance,
address)
}
func (info ParseRestrictedAccountInfo) GetAccount(
address flow.Address,
) (
*flow.Account,
error,
) {
return parseRestrict1Arg1Ret(
info.txnState,
"GetAccount",
info.impl.GetAccount,
address)
}
type accountInfo struct {
tracer *Tracer
meter Meter
accounts Accounts
systemContracts *SystemContracts
serviceAccountEnabled bool
}
func NewAccountInfo(
tracer *Tracer,
meter Meter,
accounts Accounts,
systemContracts *SystemContracts,
serviceAccountEnabled bool,
) AccountInfo {
return &accountInfo{
tracer: tracer,
meter: meter,
accounts: accounts,
systemContracts: systemContracts,
serviceAccountEnabled: serviceAccountEnabled,
}
}
func (info *accountInfo) GetStorageUsed(
address common.Address,
) (
uint64,
error,
) {
defer info.tracer.StartSpanFromRoot(trace.FVMEnvGetStorageUsed).End()
err := info.meter.MeterComputation(ComputationKindGetStorageUsed, 1)
if err != nil {
return 0, fmt.Errorf("get storage used failed: %w", err)
}
value, err := info.accounts.GetStorageUsed(flow.Address(address))
if err != nil {
return 0, fmt.Errorf("get storage used failed: %w", err)
}
return value, nil
}
// StorageMBUFixToBytesUInt converts the return type of storage capacity which
// is a UFix64 with the unit of megabytes to UInt with the unit of bytes
func StorageMBUFixToBytesUInt(result cadence.Value) uint64 {
// Divide the unsigned int by (1e8 (the scale of Fix64) / 1e6 (for mega))
// to get bytes (rounded down)
return result.ToGoValue().(uint64) / 100
}
func (info *accountInfo) GetStorageCapacity(
address common.Address,
) (
uint64,
error,
) {
defer info.tracer.StartSpanFromRoot(trace.FVMEnvGetStorageCapacity).End()
err := info.meter.MeterComputation(ComputationKindGetStorageCapacity, 1)
if err != nil {
return 0, fmt.Errorf("get storage capacity failed: %w", err)
}
result, invokeErr := info.systemContracts.AccountStorageCapacity(address)
if invokeErr != nil {
return 0, invokeErr
}
// Return type is actually a UFix64 with the unit of megabytes so some
// conversion is necessary divide the unsigned int by (1e8 (the scale of
// Fix64) / 1e6 (for mega)) to get bytes (rounded down)
return StorageMBUFixToBytesUInt(result), nil
}
func (info *accountInfo) GetAccountBalance(
address common.Address,
) (
uint64,
error,
) {
defer info.tracer.StartSpanFromRoot(trace.FVMEnvGetAccountBalance).End()
err := info.meter.MeterComputation(ComputationKindGetAccountBalance, 1)
if err != nil {
return 0, fmt.Errorf("get account balance failed: %w", err)
}
result, invokeErr := info.systemContracts.AccountBalance(address)
if invokeErr != nil {
return 0, invokeErr
}
return result.ToGoValue().(uint64), nil
}
func (info *accountInfo) GetAccountAvailableBalance(
address common.Address,
) (
uint64,
error,
) {
defer info.tracer.StartSpanFromRoot(trace.FVMEnvGetAccountBalance).End()
err := info.meter.MeterComputation(
ComputationKindGetAccountAvailableBalance,
1)
if err != nil {
return 0, fmt.Errorf("get account available balance failed: %w", err)
}
result, invokeErr := info.systemContracts.AccountAvailableBalance(address)
if invokeErr != nil {
return 0, invokeErr
}
return result.ToGoValue().(uint64), nil
}
func (info *accountInfo) GetAccount(
address flow.Address,
) (
*flow.Account,
error,
) {
account, err := info.accounts.Get(address)
if err != nil {
return nil, err
}
if info.serviceAccountEnabled {
balance, err := info.GetAccountBalance(common.Address(address))
if err != nil {
return nil, err
}
account.Balance = balance
}
return account, nil
}