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raft: rename log.len to log.lastIndex

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This commit is contained in:
Xiang Li
2014-05-27 22:50:47 -07:00
committed by Yicheng Qin
parent 8f3d109c18
commit 092461d7c8
2 changed files with 11 additions and 15 deletions
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14
raft/raft.go
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@ -185,7 +185,7 @@ func (sm *stateMachine) reset() {
sm.votes = make(map[int]bool)
sm.ins = make([]*index, sm.k)
for i := range sm.ins {
sm.ins[i] = &index{next: sm.log.len() + 1}
sm.ins[i] = &index{next: sm.log.lastIndex() + 1}
}
}
@ -197,10 +197,6 @@ func (sm *stateMachine) voteWorthy(i, term int) bool {
return sm.log.isUpToDate(i, term)
}
func (sm *stateMachine) li() int {
return sm.log.len()
}
func (sm *stateMachine) becomeFollower(term, lead int) {
sm.reset()
sm.term = term
@ -245,14 +241,14 @@ func (sm *stateMachine) Step(m Message) {
if i == sm.addr {
continue
}
lasti := sm.li()
lasti := sm.log.lastIndex()
sm.send(Message{To: i, Type: msgVote, Index: lasti, LogTerm: sm.log.term(lasti)})
}
return
case msgProp:
switch sm.lead {
case sm.addr:
sm.log.append(sm.log.len(), Entry{Term: sm.term, Data: m.Data})
sm.log.append(sm.log.lastIndex(), Entry{Term: sm.term, Data: m.Data})
sm.sendAppend()
case none:
panic("msgProp given without leader")
@ -275,7 +271,7 @@ func (sm *stateMachine) Step(m Message) {
if sm.log.matchTerm(m.Index, m.LogTerm) {
sm.log.commit = m.Commit
sm.log.append(m.Index, m.Entries...)
sm.send(Message{To: m.From, Type: msgAppResp, Index: sm.li()})
sm.send(Message{To: m.From, Type: msgAppResp, Index: sm.log.lastIndex()})
} else {
sm.send(Message{To: m.From, Type: msgAppResp, Index: -1})
}
@ -317,7 +313,7 @@ func (sm *stateMachine) Step(m Message) {
handleAppendEntries()
case msgVote:
if sm.voteWorthy(m.Index, m.LogTerm) {
sm.send(Message{To: m.From, Type: msgVoteResp, Index: sm.li()})
sm.send(Message{To: m.From, Type: msgVoteResp, Index: sm.log.lastIndex()})
} else {
sm.send(Message{To: m.From, Type: msgVoteResp, Index: -1})
}