-
Notifications
You must be signed in to change notification settings - Fork 8.8k
/
inproccontroller.go
236 lines (188 loc) · 6.62 KB
/
inproccontroller.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
/*
Copyright IBM Corp. 2016 All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package inproccontroller
import (
"fmt"
"io"
"github.com/hyperledger/fabric/common/flogging"
"github.com/hyperledger/fabric/core/chaincode/shim"
container "github.com/hyperledger/fabric/core/container/api"
"github.com/hyperledger/fabric/core/container/ccintf"
pb "github.com/hyperledger/fabric/protos/peer"
"golang.org/x/net/context"
)
type inprocContainer struct {
chaincode shim.Chaincode
running bool
args []string
env []string
stopChan chan struct{}
}
var (
inprocLogger = flogging.MustGetLogger("inproccontroller")
typeRegistry = make(map[string]*inprocContainer)
instRegistry = make(map[string]*inprocContainer)
)
// errors
//SysCCRegisteredErr registered error
type SysCCRegisteredErr string
func (s SysCCRegisteredErr) Error() string {
return fmt.Sprintf("%s already registered", string(s))
}
//Register registers system chaincode with given path. The deploy should be called to initialize
func Register(path string, cc shim.Chaincode) error {
tmp := typeRegistry[path]
if tmp != nil {
return SysCCRegisteredErr(path)
}
typeRegistry[path] = &inprocContainer{chaincode: cc}
return nil
}
//InprocVM is a vm. It is identified by a executable name
type InprocVM struct {
id string
}
func (vm *InprocVM) getInstance(ctxt context.Context, ipctemplate *inprocContainer, instName string, args []string, env []string) (*inprocContainer, error) {
ipc := instRegistry[instName]
if ipc != nil {
inprocLogger.Warningf("chaincode instance exists for %s", instName)
return ipc, nil
}
ipc = &inprocContainer{args: args, env: env, chaincode: ipctemplate.chaincode, stopChan: make(chan struct{})}
instRegistry[instName] = ipc
inprocLogger.Debugf("chaincode instance created for %s", instName)
return ipc, nil
}
//Deploy verifies chaincode is registered and creates an instance for it. Currently only one instance can be created
func (vm *InprocVM) Deploy(ctxt context.Context, ccid ccintf.CCID, args []string, env []string, reader io.Reader) error {
path := ccid.ChaincodeSpec.ChaincodeId.Path
ipctemplate := typeRegistry[path]
if ipctemplate == nil {
return fmt.Errorf(fmt.Sprintf("%s not registered. Please register the system chaincode in inprocinstances.go", path))
}
if ipctemplate.chaincode == nil {
return fmt.Errorf(fmt.Sprintf("%s system chaincode does not contain chaincode instance", path))
}
instName, _ := vm.GetVMName(ccid)
_, err := vm.getInstance(ctxt, ipctemplate, instName, args, env)
//FUTURE ... here is where we might check code for safety
inprocLogger.Debugf("registered : %s", path)
return err
}
func (ipc *inprocContainer) launchInProc(ctxt context.Context, id string, args []string, env []string, ccSupport ccintf.CCSupport) error {
peerRcvCCSend := make(chan *pb.ChaincodeMessage)
ccRcvPeerSend := make(chan *pb.ChaincodeMessage)
var err error
ccchan := make(chan struct{}, 1)
ccsupportchan := make(chan struct{}, 1)
go func() {
defer close(ccchan)
inprocLogger.Debugf("chaincode started for %s", id)
if args == nil {
args = ipc.args
}
if env == nil {
env = ipc.env
}
err := shim.StartInProc(env, args, ipc.chaincode, ccRcvPeerSend, peerRcvCCSend)
if err != nil {
err = fmt.Errorf("chaincode-support ended with err: %s", err)
inprocLogger.Errorf("%s", err)
}
inprocLogger.Debugf("chaincode ended with for %s with err: %s", id, err)
}()
go func() {
defer close(ccsupportchan)
inprocStream := newInProcStream(peerRcvCCSend, ccRcvPeerSend)
inprocLogger.Debugf("chaincode-support started for %s", id)
err := ccSupport.HandleChaincodeStream(ctxt, inprocStream)
if err != nil {
err = fmt.Errorf("chaincode ended with err: %s", err)
inprocLogger.Errorf("%s", err)
}
inprocLogger.Debugf("chaincode-support ended with for %s with err: %s", id, err)
}()
select {
case <-ccchan:
close(peerRcvCCSend)
inprocLogger.Debugf("chaincode %s quit", id)
case <-ccsupportchan:
close(ccRcvPeerSend)
inprocLogger.Debugf("chaincode support %s quit", id)
case <-ipc.stopChan:
close(ccRcvPeerSend)
close(peerRcvCCSend)
inprocLogger.Debugf("chaincode %s stopped", id)
}
return err
}
//Start starts a previously registered system codechain
func (vm *InprocVM) Start(ctxt context.Context, ccid ccintf.CCID, args []string, env []string, builder container.BuildSpecFactory) error {
path := ccid.ChaincodeSpec.ChaincodeId.Path
ipctemplate := typeRegistry[path]
if ipctemplate == nil {
return fmt.Errorf(fmt.Sprintf("%s not registered", path))
}
instName, _ := vm.GetVMName(ccid)
ipc, err := vm.getInstance(ctxt, ipctemplate, instName, args, env)
if err != nil {
return fmt.Errorf(fmt.Sprintf("could not create instance for %s", instName))
}
if ipc.running {
return fmt.Errorf(fmt.Sprintf("chaincode running %s", path))
}
//TODO VALIDITY CHECKS ?
ccSupport, ok := ctxt.Value(ccintf.GetCCHandlerKey()).(ccintf.CCSupport)
if !ok || ccSupport == nil {
return fmt.Errorf("in-process communication generator not supplied")
}
ipc.running = true
go func() {
defer func() {
if r := recover(); r != nil {
inprocLogger.Criticalf("caught panic from chaincode %s", instName)
}
}()
ipc.launchInProc(ctxt, instName, args, env, ccSupport)
}()
return nil
}
//Stop stops a system codechain
func (vm *InprocVM) Stop(ctxt context.Context, ccid ccintf.CCID, timeout uint, dontkill bool, dontremove bool) error {
path := ccid.ChaincodeSpec.ChaincodeId.Path
ipctemplate := typeRegistry[path]
if ipctemplate == nil {
return fmt.Errorf("%s not registered", path)
}
instName, _ := vm.GetVMName(ccid)
ipc := instRegistry[instName]
if ipc == nil {
return fmt.Errorf("%s not found", instName)
}
if !ipc.running {
return fmt.Errorf("%s not running", instName)
}
ipc.stopChan <- struct{}{}
delete(instRegistry, instName)
//TODO stop
return nil
}
//Destroy destroys an image
func (vm *InprocVM) Destroy(ctxt context.Context, ccid ccintf.CCID, force bool, noprune bool) error {
//not implemented
return nil
}
//GetVMName ignores the peer and network name as it just needs to be unique in process
func (vm *InprocVM) GetVMName(ccid ccintf.CCID) (string, error) {
return ccid.GetName(), nil
}