4 // for registering TMEventData as events.EventData
5 abci "github.com/tendermint/abci/types"
6 "github.com/tendermint/go-wire/data"
7 cmn "github.com/tendermint/tmlibs/common"
8 "github.com/tendermint/tmlibs/events"
11 // Functions to generate eventId strings
14 func EventStringBond() string { return "Bond" }
15 func EventStringUnbond() string { return "Unbond" }
16 func EventStringRebond() string { return "Rebond" }
17 func EventStringDupeout() string { return "Dupeout" }
18 func EventStringFork() string { return "Fork" }
19 func EventStringTx(tx Tx) string { return cmn.Fmt("Tx:%X", tx.Hash()) }
21 func EventStringNewBlock() string { return "NewBlock" }
22 func EventStringNewBlockHeader() string { return "NewBlockHeader" }
23 func EventStringNewRound() string { return "NewRound" }
24 func EventStringNewRoundStep() string { return "NewRoundStep" }
25 func EventStringTimeoutPropose() string { return "TimeoutPropose" }
26 func EventStringCompleteProposal() string { return "CompleteProposal" }
27 func EventStringPolka() string { return "Polka" }
28 func EventStringUnlock() string { return "Unlock" }
29 func EventStringLock() string { return "Lock" }
30 func EventStringRelock() string { return "Relock" }
31 func EventStringTimeoutWait() string { return "TimeoutWait" }
32 func EventStringVote() string { return "Vote" }
34 //----------------------------------------
37 EventDataNameNewBlock = "new_block"
38 EventDataNameNewBlockHeader = "new_block_header"
39 EventDataNameTx = "tx"
40 EventDataNameRoundState = "round_state"
41 EventDataNameVote = "vote"
44 //----------------------------------------
46 // implements events.EventData
47 type TMEventDataInner interface {
51 type TMEventData struct {
52 TMEventDataInner `json:"unwrap"`
55 func (tmr TMEventData) MarshalJSON() ([]byte, error) {
56 return tmEventDataMapper.ToJSON(tmr.TMEventDataInner)
59 func (tmr *TMEventData) UnmarshalJSON(data []byte) (err error) {
60 parsed, err := tmEventDataMapper.FromJSON(data)
61 if err == nil && parsed != nil {
62 tmr.TMEventDataInner = parsed.(TMEventDataInner)
67 func (tmr TMEventData) Unwrap() TMEventDataInner {
68 tmrI := tmr.TMEventDataInner
69 for wrap, ok := tmrI.(TMEventData); ok; wrap, ok = tmrI.(TMEventData) {
70 tmrI = wrap.TMEventDataInner
75 func (tmr TMEventData) Empty() bool {
76 return tmr.TMEventDataInner == nil
80 EventDataTypeNewBlock = byte(0x01)
81 EventDataTypeFork = byte(0x02)
82 EventDataTypeTx = byte(0x03)
83 EventDataTypeNewBlockHeader = byte(0x04)
85 EventDataTypeRoundState = byte(0x11)
86 EventDataTypeVote = byte(0x12)
89 var tmEventDataMapper = data.NewMapper(TMEventData{}).
90 RegisterImplementation(EventDataNewBlock{}, EventDataNameNewBlock, EventDataTypeNewBlock).
91 RegisterImplementation(EventDataNewBlockHeader{}, EventDataNameNewBlockHeader, EventDataTypeNewBlockHeader).
92 RegisterImplementation(EventDataTx{}, EventDataNameTx, EventDataTypeTx).
93 RegisterImplementation(EventDataRoundState{}, EventDataNameRoundState, EventDataTypeRoundState).
94 RegisterImplementation(EventDataVote{}, EventDataNameVote, EventDataTypeVote)
96 // Most event messages are basic types (a block, a transaction)
97 // but some (an input to a call tx or a receive) are more exotic
99 type EventDataNewBlock struct {
100 Block *Block `json:"block"`
103 // light weight event for benchmarking
104 type EventDataNewBlockHeader struct {
105 Header *Header `json:"header"`
108 // All txs fire EventDataTx
109 type EventDataTx struct {
110 Height int `json:"height"`
112 Data data.Bytes `json:"data"`
113 Log string `json:"log"`
114 Code abci.CodeType `json:"code"`
115 Error string `json:"error"` // this is redundant information for now
118 // NOTE: This goes into the replay WAL
119 type EventDataRoundState struct {
120 Height int `json:"height"`
121 Round int `json:"round"`
122 Step string `json:"step"`
124 // private, not exposed to websockets
125 RoundState interface{} `json:"-"`
128 type EventDataVote struct {
132 func (_ EventDataNewBlock) AssertIsTMEventData() {}
133 func (_ EventDataNewBlockHeader) AssertIsTMEventData() {}
134 func (_ EventDataTx) AssertIsTMEventData() {}
135 func (_ EventDataRoundState) AssertIsTMEventData() {}
136 func (_ EventDataVote) AssertIsTMEventData() {}
138 //----------------------------------------
139 // Wrappers for type safety
141 type Fireable interface {
145 type Eventable interface {
146 SetEventSwitch(EventSwitch)
149 type EventSwitch interface {
153 type EventCache interface {
158 func NewEventSwitch() EventSwitch {
159 return events.NewEventSwitch()
162 func NewEventCache(evsw EventSwitch) EventCache {
163 return events.NewEventCache(evsw)
166 // All events should be based on this FireEvent to ensure they are TMEventData
167 func fireEvent(fireable events.Fireable, event string, data TMEventData) {
169 fireable.FireEvent(event, data)
173 func AddListenerForEvent(evsw EventSwitch, id, event string, cb func(data TMEventData)) {
174 evsw.AddListenerForEvent(id, event, func(data events.EventData) {
175 cb(data.(TMEventData))
180 //--- block, tx, and vote events
182 func FireEventNewBlock(fireable events.Fireable, block EventDataNewBlock) {
183 fireEvent(fireable, EventStringNewBlock(), TMEventData{block})
186 func FireEventNewBlockHeader(fireable events.Fireable, header EventDataNewBlockHeader) {
187 fireEvent(fireable, EventStringNewBlockHeader(), TMEventData{header})
190 func FireEventVote(fireable events.Fireable, vote EventDataVote) {
191 fireEvent(fireable, EventStringVote(), TMEventData{vote})
194 func FireEventTx(fireable events.Fireable, tx EventDataTx) {
195 fireEvent(fireable, EventStringTx(tx.Tx), TMEventData{tx})
198 //--- EventDataRoundState events
200 func FireEventNewRoundStep(fireable events.Fireable, rs EventDataRoundState) {
201 fireEvent(fireable, EventStringNewRoundStep(), TMEventData{rs})
204 func FireEventTimeoutPropose(fireable events.Fireable, rs EventDataRoundState) {
205 fireEvent(fireable, EventStringTimeoutPropose(), TMEventData{rs})
208 func FireEventTimeoutWait(fireable events.Fireable, rs EventDataRoundState) {
209 fireEvent(fireable, EventStringTimeoutWait(), TMEventData{rs})
212 func FireEventNewRound(fireable events.Fireable, rs EventDataRoundState) {
213 fireEvent(fireable, EventStringNewRound(), TMEventData{rs})
216 func FireEventCompleteProposal(fireable events.Fireable, rs EventDataRoundState) {
217 fireEvent(fireable, EventStringCompleteProposal(), TMEventData{rs})
220 func FireEventPolka(fireable events.Fireable, rs EventDataRoundState) {
221 fireEvent(fireable, EventStringPolka(), TMEventData{rs})
224 func FireEventUnlock(fireable events.Fireable, rs EventDataRoundState) {
225 fireEvent(fireable, EventStringUnlock(), TMEventData{rs})
228 func FireEventRelock(fireable events.Fireable, rs EventDataRoundState) {
229 fireEvent(fireable, EventStringRelock(), TMEventData{rs})
232 func FireEventLock(fireable events.Fireable, rs EventDataRoundState) {
233 fireEvent(fireable, EventStringLock(), TMEventData{rs})