forked from DNAProject/DNA
-
Notifications
You must be signed in to change notification settings - Fork 1
/
state_machine.go
117 lines (94 loc) · 2.76 KB
/
state_machine.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
/*
* Copyright (C) 2018 The DNA Authors
* This file is part of The DNA library.
*
* The DNA is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The DNA is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with The DNA. If not, see <http://www.gnu.org/licenses/>.
*/
package wasmvm
import (
"fmt"
"github.com/dnaproject2/DNA/common/log"
"github.com/dnaproject2/DNA/errors"
"github.com/dnaproject2/DNA/vm/wasmvm/exec"
"github.com/dnaproject2/DNA/vm/wasmvm/util"
)
type LogLevel byte
const (
Debug LogLevel = iota
Info
Error
)
type ParamType byte
const (
Json ParamType = iota
Raw
)
type WasmStateMachine struct {
*WasmStateReader
}
func NewWasmStateMachine() *WasmStateMachine {
stateMachine := WasmStateMachine{WasmStateReader: NewWasmStateReader()}
//only for debug test
stateMachine.Register("ContractLogDebug", stateMachine.contractLogDebug)
stateMachine.Register("ContractLogInfo", stateMachine.contractLogInfo)
stateMachine.Register("ContractLogError", stateMachine.contractLogError)
return &stateMachine
}
func (s *WasmStateMachine) contractLogDebug(engine *exec.ExecutionEngine) (bool, error) {
_, err := contractLog(Debug, engine)
if err != nil {
return false, err
}
engine.GetVM().RestoreCtx()
return true, nil
}
func (s *WasmStateMachine) contractLogInfo(engine *exec.ExecutionEngine) (bool, error) {
_, err := contractLog(Info, engine)
if err != nil {
return false, err
}
engine.GetVM().RestoreCtx()
return true, nil
}
func (s *WasmStateMachine) contractLogError(engine *exec.ExecutionEngine) (bool, error) {
_, err := contractLog(Error, engine)
if err != nil {
return false, err
}
engine.GetVM().RestoreCtx()
return true, nil
}
func contractLog(lv LogLevel, engine *exec.ExecutionEngine) (bool, error) {
vm := engine.GetVM()
envCall := vm.GetEnvCall()
params := envCall.GetParams()
if len(params) != 1 {
return false, errors.NewErr("parameter count error while call contractLong")
}
Idx := params[0]
addr, err := vm.GetPointerMemory(Idx)
if err != nil {
return false, errors.NewErr("get Contract address failed")
}
msg := fmt.Sprintf("[WASM Contract] Address:%s message:%s", vm.ContractAddress.ToHexString(), util.TrimBuffToString(addr))
switch lv {
case Debug:
log.Debug(msg)
case Info:
log.Info(msg)
case Error:
log.Error(msg)
}
return true, nil
}