-
Notifications
You must be signed in to change notification settings - Fork 199
/
heartbeatSender.go
163 lines (139 loc) · 4.71 KB
/
heartbeatSender.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
package sender
import (
"fmt"
"time"
"github.com/ElrondNetwork/elrond-go-core/core"
"github.com/ElrondNetwork/elrond-go-core/core/check"
"github.com/ElrondNetwork/elrond-go/common"
"github.com/ElrondNetwork/elrond-go/heartbeat"
)
const maxSizeInBytes = 128
// argHeartbeatSender represents the arguments for the heartbeat sender
type argHeartbeatSender struct {
argBaseSender
versionNumber string
nodeDisplayName string
identity string
peerSubType core.P2PPeerSubType
currentBlockProvider heartbeat.CurrentBlockProvider
peerTypeProvider heartbeat.PeerTypeProviderHandler
}
type heartbeatSender struct {
baseSender
versionNumber string
nodeDisplayName string
identity string
peerSubType core.P2PPeerSubType
currentBlockProvider heartbeat.CurrentBlockProvider
peerTypeProvider heartbeat.PeerTypeProviderHandler
}
// newHeartbeatSender creates a new instance of type heartbeatSender
func newHeartbeatSender(args argHeartbeatSender) (*heartbeatSender, error) {
err := checkHeartbeatSenderArgs(args)
if err != nil {
return nil, err
}
return &heartbeatSender{
baseSender: createBaseSender(args.argBaseSender),
versionNumber: args.versionNumber,
nodeDisplayName: args.nodeDisplayName,
identity: args.identity,
peerSubType: args.peerSubType,
currentBlockProvider: args.currentBlockProvider,
peerTypeProvider: args.peerTypeProvider,
}, nil
}
func checkHeartbeatSenderArgs(args argHeartbeatSender) error {
err := checkBaseSenderArgs(args.argBaseSender)
if err != nil {
return err
}
if len(args.versionNumber) > maxSizeInBytes {
return fmt.Errorf("%w for versionNumber, received %s of size %d, max size allowed %d",
heartbeat.ErrPropertyTooLong, args.versionNumber, len(args.versionNumber), maxSizeInBytes)
}
if len(args.nodeDisplayName) > maxSizeInBytes {
return fmt.Errorf("%w for nodeDisplayName, received %s of size %d, max size allowed %d",
heartbeat.ErrPropertyTooLong, args.nodeDisplayName, len(args.nodeDisplayName), maxSizeInBytes)
}
if len(args.identity) > maxSizeInBytes {
return fmt.Errorf("%w for identity, received %s of size %d, max size allowed %d",
heartbeat.ErrPropertyTooLong, args.identity, len(args.identity), maxSizeInBytes)
}
if check.IfNil(args.currentBlockProvider) {
return heartbeat.ErrNilCurrentBlockProvider
}
if check.IfNil(args.peerTypeProvider) {
return heartbeat.ErrNilPeerTypeProvider
}
return nil
}
// Execute will handle the execution of a cycle in which the heartbeat message will be sent
func (sender *heartbeatSender) Execute() {
duration := sender.computeRandomDuration(sender.timeBetweenSends)
err := sender.execute()
if err != nil {
duration = sender.timeBetweenSendsWhenError
log.Error("error sending heartbeat message", "error", err, "next send will be in", duration)
} else {
log.Debug("heartbeat message sent", "next send will be in", duration)
}
sender.CreateNewTimer(duration)
}
func (sender *heartbeatSender) execute() error {
payload := &heartbeat.Payload{
Timestamp: time.Now().Unix(),
HardforkMessage: "", // sent through peer authentication message
}
payloadBytes, err := sender.marshaller.Marshal(payload)
if err != nil {
return err
}
nonce := uint64(0)
currentBlock := sender.currentBlockProvider.GetCurrentBlockHeader()
if currentBlock != nil {
nonce = currentBlock.GetNonce()
}
_, pk := sender.getCurrentPrivateAndPublicKeys()
pkBytes, err := pk.ToByteArray()
if err != nil {
return err
}
msg := &heartbeat.HeartbeatV2{
Payload: payloadBytes,
VersionNumber: sender.versionNumber,
NodeDisplayName: sender.nodeDisplayName,
Identity: sender.identity,
Nonce: nonce,
PeerSubType: uint32(sender.peerSubType),
Pubkey: pkBytes,
}
msgBytes, err := sender.marshaller.Marshal(msg)
if err != nil {
return err
}
sender.messenger.Broadcast(sender.topic, msgBytes)
return nil
}
// getSenderInfo will return the current sender info
func (sender *heartbeatSender) getSenderInfo() (string, core.P2PPeerSubType, error) {
_, pk := sender.getCurrentPrivateAndPublicKeys()
pkBytes, err := pk.ToByteArray()
if err != nil {
return "", 0, err
}
peerType := sender.computePeerList(pkBytes)
return peerType, sender.peerSubType, nil
}
func (sender *heartbeatSender) computePeerList(pubkey []byte) string {
peerType, _, err := sender.peerTypeProvider.ComputeForPubKey(pubkey)
if err != nil {
log.Warn("heartbeatSender: compute peer type", "error", err)
return string(common.ObserverList)
}
return string(peerType)
}
// IsInterfaceNil returns true if there is no value under the interface
func (sender *heartbeatSender) IsInterfaceNil() bool {
return sender == nil
}