func internalPubAsync(clientTimer *time.Timer, msgBody *bytes.Buffer, topic *nsqd.Topic) error {
if topic.Exiting() {
return nsqd.ErrExiting
}
info := &nsqd.PubInfo{
Done: make(chan struct{}),
MsgBody: msgBody,
StartPub: time.Now(),
}
if clientTimer == nil {
clientTimer = time.NewTimer(time.Second * 5)
} else {
clientTimer.Reset(time.Second * 5)
}
select {
case topic.GetWaitChan() <- info:
default:
select {
case topic.GetWaitChan() <- info:
case <-topic.QuitChan():
nsqd.NsqLogger().Infof("topic %v put messages failed at exiting", topic.GetFullName())
return nsqd.ErrExiting
case <-clientTimer.C:
nsqd.NsqLogger().Infof("topic %v put messages timeout ", topic.GetFullName())
return ErrPubToWaitTimeout
}
}
<-info.Done
return info.Err
}
func (c *context) internalPubLoop(topic *nsqd.Topic) {
messages := make([]*nsqd.Message, 0, 100)
pubInfoList := make([]*nsqd.PubInfo, 0, 100)
topicName := topic.GetTopicName()
partition := topic.GetTopicPart()
nsqd.NsqLogger().Logf("start pub loop for topic: %v ", topic.GetFullName())
defer func() {
done := false
for !done {
select {
case info := <-topic.GetWaitChan():
pubInfoList = append(pubInfoList, info)
default:
done = true
}
}
nsqd.NsqLogger().Logf("quit pub loop for topic: %v, left: %v ", topic.GetFullName(), len(pubInfoList))
for _, info := range pubInfoList {
info.Err = nsqd.ErrExiting
close(info.Done)
}
}()
quitChan := topic.QuitChan()
infoChan := topic.GetWaitChan()
for {
select {
case <-quitChan:
return
case info := <-infoChan:
if info.MsgBody.Len() <= 0 {
nsqd.NsqLogger().Logf("empty msg body")
}
messages = append(messages, nsqd.NewMessage(0, info.MsgBody.Bytes()))
pubInfoList = append(pubInfoList, info)
// TODO: avoid too much in a batch
default:
if len(pubInfoList) == 0 {
nsqd.NsqLogger().LogDebugf("topic %v pub loop waiting for message", topic.GetFullName())
select {
case <-quitChan:
return
case info := <-infoChan:
if info.MsgBody.Len() <= 0 {
nsqd.NsqLogger().Logf("empty msg body")
}
messages = append(messages, nsqd.NewMessage(0, info.MsgBody.Bytes()))
pubInfoList = append(pubInfoList, info)
}
continue
}
if len(pubInfoList) > 1 {
nsqd.NsqLogger().LogDebugf("pub loop batch number: %v", len(pubInfoList))
}
var retErr error
if c.checkForMasterWrite(topicName, partition) {
_, _, _, err := c.PutMessages(topic, messages)
if err != nil {
nsqd.NsqLogger().LogErrorf("topic %v put messages %v failed: %v", topic.GetFullName(), len(messages), err)
retErr = err
}
} else {
topic.DisableForSlave()
nsqd.NsqLogger().LogDebugf("should put to master: %v",
topic.GetFullName())
retErr = consistence.ErrNotTopicLeader.ToErrorType()
}
for _, info := range pubInfoList {
info.Err = retErr
close(info.Done)
}
pubInfoList = pubInfoList[:0]
messages = messages[:0]
}
}
}
