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raft: group configuration related funcs

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This commit is contained in:
Xiang Li 2014-12-08 15:23:21 -08:00
parent 25313b1210
commit f73d059d80
1 changed files with 25 additions and 25 deletions
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50
raft/raft.go
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@ -461,24 +461,6 @@ func (r *raft) handleSnapshot(m pb.Message) {
}
}
func (r *raft) resetPendingConf() { r.pendingConf = false }
func (r *raft) addNode(id uint64) {
if _, ok := r.prs[id]; ok {
// Ignore any redundant addNode calls (which can happen because the
// initial bootstrapping entries are applied twice).
return
}
r.setProgress(id, 0, r.raftLog.lastIndex()+1)
r.pendingConf = false
}
func (r *raft) removeNode(id uint64) {
r.delProgress(id)
r.pendingConf = false
}
type stepFunc func(r *raft, m pb.Message)
func stepLeader(r *raft, m pb.Message) {
@ -626,6 +608,31 @@ func (r *raft) nodes() []uint64 {
return nodes
}
// promotable indicates whether state machine can be promoted to leader,
// which is true when its own id is in progress list.
func (r *raft) promotable() bool {
_, ok := r.prs[r.id]
return ok
}
func (r *raft) addNode(id uint64) {
if _, ok := r.prs[id]; ok {
// Ignore any redundant addNode calls (which can happen because the
// initial bootstrapping entries are applied twice).
return
}
r.setProgress(id, 0, r.raftLog.lastIndex()+1)
r.pendingConf = false
}
func (r *raft) removeNode(id uint64) {
r.delProgress(id)
r.pendingConf = false
}
func (r *raft) resetPendingConf() { r.pendingConf = false }
func (r *raft) setProgress(id, match, next uint64) {
r.prs[id] = &progress{next: next, match: match}
}
@ -634,13 +641,6 @@ func (r *raft) delProgress(id uint64) {
delete(r.prs, id)
}
// promotable indicates whether state machine can be promoted to leader,
// which is true when its own id is in progress list.
func (r *raft) promotable() bool {
_, ok := r.prs[r.id]
return ok
}
func (r *raft) loadState(state pb.HardState) {
if state.Commit < r.raftLog.committed || state.Commit > r.raftLog.lastIndex() {
log.Panicf("raft: %x state.commit %d is out of range [%d, %d]", r.id, state.Commit, r.raftLog.committed, r.raftLog.lastIndex())