forked from hyperledger/fabric
-
Notifications
You must be signed in to change notification settings - Fork 1
/
single_tx_client.go
166 lines (146 loc) · 4.6 KB
/
single_tx_client.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
/*
Copyright Digital Asset Holdings, LLC 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 main
import (
"fmt"
"time"
"github.com/hyperledger/fabric/common/configtx/tool/provisional"
cb "github.com/hyperledger/fabric/protos/common"
ab "github.com/hyperledger/fabric/protos/orderer"
"github.com/hyperledger/fabric/protos/utils"
"github.com/golang/protobuf/proto"
"github.com/op/go-logging"
"golang.org/x/net/context"
"google.golang.org/grpc"
)
var logger = logging.MustGetLogger("sbft_test")
var UPDATE byte = 0
var SEND byte = 1
var NEEDED_UPDATES = 2
var NEEDED_SENT = 1
func main() {
logger.Info("Creating an Atomic Broadcast GRPC connection.")
timeout := 4 * time.Second
clientconn, err := grpc.Dial(":7101", grpc.WithBlock(), grpc.WithTimeout(timeout), grpc.WithInsecure())
if err != nil {
logger.Errorf("Failed to connect to GRPC: %s", err)
return
}
client := ab.NewAtomicBroadcastClient(clientconn)
resultch := make(chan byte)
errorch := make(chan error)
logger.Info("Starting a goroutine waiting for ledger updates.")
go updateReceiver(resultch, errorch, client)
logger.Info("Starting a single broadcast sender goroutine.")
go broadcastSender(resultch, errorch, client)
checkResults(resultch, errorch)
}
func checkResults(resultch chan byte, errorch chan error) {
l := len(errorch)
for i := 0; i < l; i++ {
errres := <-errorch
logger.Error(errres)
}
updates := 0
sentBroadcast := 0
for i := 0; i < 3; i++ {
select {
case result := <-resultch:
switch result {
case UPDATE:
updates++
case SEND:
sentBroadcast++
}
case <-time.After(30 * time.Second):
continue
}
}
if updates != NEEDED_UPDATES {
logger.Errorf("We did not get all the ledger updates.")
} else if sentBroadcast != NEEDED_SENT {
logger.Errorf("We were unable to send all the broadcasts.")
} else {
logger.Info("Successfully sent and received everything.")
}
}
func updateReceiver(resultch chan byte, errorch chan error, client ab.AtomicBroadcastClient) {
logger.Info("{Update Receiver} Creating a ledger update delivery stream.")
dstream, err := client.Deliver(context.Background())
if err != nil {
errorch <- fmt.Errorf("Failed to get Deliver stream: %s", err)
return
}
dstream.Send(&cb.Envelope{
Payload: utils.MarshalOrPanic(&cb.Payload{
Header: &cb.Header{
ChannelHeader: utils.MarshalOrPanic(&cb.ChannelHeader{
ChannelId: provisional.TestChainID,
}),
SignatureHeader: utils.MarshalOrPanic(&cb.SignatureHeader{}),
},
Data: utils.MarshalOrPanic(&ab.SeekInfo{
Start: &ab.SeekPosition{Type: &ab.SeekPosition_Newest{}},
Stop: &ab.SeekPosition{Type: &ab.SeekPosition_Newest{}},
Behavior: ab.SeekInfo_BLOCK_UNTIL_READY,
}),
}),
})
logger.Info("{Update Receiver} Listening to ledger updates.")
for i := 0; i < 2; i++ {
m, inerr := dstream.Recv()
if inerr != nil {
errorch <- fmt.Errorf("Failed to receive consensus: %s", inerr)
return
}
b := m.Type.(*ab.DeliverResponse_Block)
logger.Info("{Update Receiver} Received a ledger update.")
for i, tx := range b.Block.Data.Data {
pl := &cb.Payload{}
e := &cb.Envelope{}
merr1 := proto.Unmarshal(tx, e)
merr2 := proto.Unmarshal(e.Payload, pl)
if merr1 == nil && merr2 == nil {
logger.Infof("{Update Receiver} %d - %v", i+1, pl.Data)
}
}
resultch <- UPDATE
}
logger.Info("{Update Receiver} Exiting...")
}
func broadcastSender(resultch chan byte, errorch chan error, client ab.AtomicBroadcastClient) {
logger.Info("{Broadcast Sender} Waiting before sending.")
<-time.After(5 * time.Second)
bstream, err := client.Broadcast(context.Background())
if err != nil {
errorch <- fmt.Errorf("Failed to get broadcast stream: %s", err)
return
}
bs := []byte{0, 1, 2, 3}
pl := &cb.Payload{
Header: &cb.Header{
ChannelHeader: utils.MarshalOrPanic(&cb.ChannelHeader{
ChannelId: provisional.TestChainID,
}),
},
Data: bs,
}
mpl, err := proto.Marshal(pl)
if err != nil {
panic("Failed to marshal payload.")
}
bstream.Send(&cb.Envelope{Payload: mpl})
logger.Infof("{Broadcast Sender} Broadcast sent: %v", bs)
logger.Info("{Broadcast Sender} Exiting...")
resultch <- SEND
}