-
Notifications
You must be signed in to change notification settings - Fork 199
/
syncEpochStartMeta.go
158 lines (138 loc) · 5.45 KB
/
syncEpochStartMeta.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
package bootstrap
import (
"context"
"time"
"github.com/ElrondNetwork/elrond-go-core/core/check"
"github.com/ElrondNetwork/elrond-go-core/data/block"
"github.com/ElrondNetwork/elrond-go-core/hashing"
"github.com/ElrondNetwork/elrond-go-core/marshal"
"github.com/ElrondNetwork/elrond-go/common"
"github.com/ElrondNetwork/elrond-go/config"
"github.com/ElrondNetwork/elrond-go/epochStart"
"github.com/ElrondNetwork/elrond-go/epochStart/bootstrap/disabled"
"github.com/ElrondNetwork/elrond-go/process"
"github.com/ElrondNetwork/elrond-go/process/factory"
"github.com/ElrondNetwork/elrond-go/process/interceptors"
interceptorsFactory "github.com/ElrondNetwork/elrond-go/process/interceptors/factory"
"github.com/ElrondNetwork/elrond-go/sharding"
)
var _ epochStart.StartOfEpochMetaSyncer = (*epochStartMetaSyncer)(nil)
type epochStartMetaSyncer struct {
requestHandler RequestHandler
messenger Messenger
marshalizer marshal.Marshalizer
hasher hashing.Hasher
singleDataInterceptor process.Interceptor
metaBlockProcessor EpochStartMetaBlockInterceptorProcessor
}
// ArgsNewEpochStartMetaSyncer -
type ArgsNewEpochStartMetaSyncer struct {
CoreComponentsHolder process.CoreComponentsHolder
CryptoComponentsHolder process.CryptoComponentsHolder
RequestHandler RequestHandler
Messenger Messenger
ShardCoordinator sharding.Coordinator
EconomicsData process.EconomicsDataHandler
WhitelistHandler process.WhiteListHandler
StartInEpochConfig config.EpochStartConfig
ArgsParser process.ArgumentsParser
HeaderIntegrityVerifier process.HeaderIntegrityVerifier
MetaBlockProcessor EpochStartMetaBlockInterceptorProcessor
}
// NewEpochStartMetaSyncer will return a new instance of epochStartMetaSyncer
func NewEpochStartMetaSyncer(args ArgsNewEpochStartMetaSyncer) (*epochStartMetaSyncer, error) {
if check.IfNil(args.CoreComponentsHolder) {
return nil, epochStart.ErrNilCoreComponentsHolder
}
if check.IfNil(args.CryptoComponentsHolder) {
return nil, epochStart.ErrNilCryptoComponentsHolder
}
if check.IfNil(args.CoreComponentsHolder.AddressPubKeyConverter()) {
return nil, epochStart.ErrNilPubkeyConverter
}
if check.IfNil(args.HeaderIntegrityVerifier) {
return nil, epochStart.ErrNilHeaderIntegrityVerifier
}
if check.IfNil(args.MetaBlockProcessor) {
return nil, epochStart.ErrNilMetablockProcessor
}
e := &epochStartMetaSyncer{
requestHandler: args.RequestHandler,
messenger: args.Messenger,
marshalizer: args.CoreComponentsHolder.InternalMarshalizer(),
hasher: args.CoreComponentsHolder.Hasher(),
metaBlockProcessor: args.MetaBlockProcessor,
}
argsInterceptedDataFactory := interceptorsFactory.ArgInterceptedDataFactory{
CoreComponents: args.CoreComponentsHolder,
CryptoComponents: args.CryptoComponentsHolder,
ShardCoordinator: args.ShardCoordinator,
NodesCoordinator: disabled.NewNodesCoordinator(),
FeeHandler: args.EconomicsData,
HeaderSigVerifier: disabled.NewHeaderSigVerifier(),
HeaderIntegrityVerifier: args.HeaderIntegrityVerifier,
ValidityAttester: disabled.NewValidityAttester(),
EpochStartTrigger: disabled.NewEpochStartTrigger(),
ArgsParser: args.ArgsParser,
}
interceptedMetaHdrDataFactory, err := interceptorsFactory.NewInterceptedMetaHeaderDataFactory(&argsInterceptedDataFactory)
if err != nil {
return nil, err
}
e.singleDataInterceptor, err = interceptors.NewSingleDataInterceptor(
interceptors.ArgSingleDataInterceptor{
Topic: factory.MetachainBlocksTopic,
DataFactory: interceptedMetaHdrDataFactory,
Processor: args.MetaBlockProcessor,
Throttler: disabled.NewThrottler(),
AntifloodHandler: disabled.NewAntiFloodHandler(),
WhiteListRequest: args.WhitelistHandler,
CurrentPeerId: args.Messenger.ID(),
PreferredPeersHolder: disabled.NewPreferredPeersHolder(),
},
)
if err != nil {
return nil, err
}
return e, nil
}
// SyncEpochStartMeta syncs the latest epoch start metablock
func (e *epochStartMetaSyncer) SyncEpochStartMeta(timeToWait time.Duration) (*block.MetaBlock, error) {
err := e.initTopicForEpochStartMetaBlockInterceptor()
if err != nil {
return nil, err
}
defer func() {
e.resetTopicsAndInterceptors()
}()
ctx, cancel := context.WithTimeout(context.Background(), timeToWait)
mb, errConsensusNotReached := e.metaBlockProcessor.GetEpochStartMetaBlock(ctx)
cancel()
if errConsensusNotReached != nil {
return nil, errConsensusNotReached
}
return mb, nil
}
func (e *epochStartMetaSyncer) resetTopicsAndInterceptors() {
err := e.messenger.UnregisterMessageProcessor(factory.MetachainBlocksTopic, common.EpochStartInterceptorsIdentifier)
if err != nil {
log.Trace("error unregistering message processors", "error", err)
}
}
func (e *epochStartMetaSyncer) initTopicForEpochStartMetaBlockInterceptor() error {
err := e.messenger.CreateTopic(factory.MetachainBlocksTopic, true)
if err != nil {
log.Warn("error messenger create topic", "error", err)
return err
}
e.resetTopicsAndInterceptors()
err = e.messenger.RegisterMessageProcessor(factory.MetachainBlocksTopic, common.EpochStartInterceptorsIdentifier, e.singleDataInterceptor)
if err != nil {
return err
}
return nil
}
// IsInterfaceNil returns true if underlying object is nil
func (e *epochStartMetaSyncer) IsInterfaceNil() bool {
return e == nil
}