func (s *Server) handleTopoEvent() {
for {
select {
case r := <-s.reqCh:
if s.slots[r.slotIdx].slotInfo.State.Status == models.SLOT_STATUS_PRE_MIGRATE {
s.bufferedReq.PushBack(r)
continue
}
for e := s.bufferedReq.Front(); e != nil; {
next := e.Next()
if s.dispatch(e.Value.(*PipelineRequest)) {
s.bufferedReq.Remove(e)
}
e = next
}
if !s.dispatch(r) {
log.Fatalf("should never happend, %+v, %+v", r, s.slots[r.slotIdx].slotInfo)
}
case e := <-s.evtbus:
switch e.(type) {
case *killEvent:
s.handleMarkOffline()
e.(*killEvent).done <- nil
default:
if s.top.IsSessionExpiredEvent(e) {
log.Fatalf("session expired: %+v", e)
}
evtPath := GetEventPath(e)
log.Infof("got event %s, %v, lastActionSeq %d", s.pi.ID, e, s.lastActionSeq)
if strings.Index(evtPath, models.GetActionResponsePath(s.conf.ProductName)) == 0 {
seq, err := strconv.Atoi(path.Base(evtPath))
if err != nil {
log.Warning(err)
} else {
if seq < s.lastActionSeq {
log.Infof("ignore, lastActionSeq %d, seq %d", s.lastActionSeq, seq)
continue
}
}
}
s.processAction(e)
}
}
}
}
func (top *Topology) GetActionResponsePath(seq int) string {
return path.Join(models.GetActionResponsePath(top.ProductName), top.coordConn.Seq2Str(int64(seq)))
}
