func (p *protocolV2) REQ(client *clientV2, params [][]byte) ([]byte, error) {
state := atomic.LoadInt32(&client.State)
if state != stateSubscribed && state != stateClosing {
return nil, protocol.NewFatalClientErr(nil, "E_INVALID", "cannot REQ in current state")
}
if len(params) < 3 {
return nil, protocol.NewFatalClientErr(nil, "E_INVALID", "REQ insufficient number of params")
}
id, err := getMessageID(params[1])
if err != nil {
return nil, protocol.NewFatalClientErr(nil, "E_INVALID", err.Error())
}
timeoutMs, err := protocol.ByteToBase10(params[2])
if err != nil {
return nil, protocol.NewFatalClientErr(err, "E_INVALID",
fmt.Sprintf("REQ could not parse timeout %s", params[2]))
}
timeoutDuration := time.Duration(timeoutMs) * time.Millisecond
if timeoutDuration < 0 || timeoutDuration > p.ctx.nsqd.getOpts().MaxReqTimeout {
return nil, protocol.NewFatalClientErr(nil, "E_INVALID",
fmt.Sprintf("REQ timeout %d out of range 0-%d", timeoutDuration, p.ctx.nsqd.getOpts().MaxReqTimeout))
}
err = client.Channel.RequeueMessage(client.ID, *id, timeoutDuration)
if err != nil {
return nil, protocol.NewClientErr(err, "E_REQ_FAILED",
fmt.Sprintf("REQ %s failed %s", *id, err.Error()))
}
client.RequeuedMessage()
return nil, nil
}
func (p *protocolV2) RDY(client *clientV2, params [][]byte) ([]byte, error) {
state := atomic.LoadInt32(&client.State)
if state == stateClosing {
// just ignore ready changes on a closing channel
p.ctx.nsqd.logf(
"PROTOCOL(V2): [%s] ignoring RDY after CLS in state ClientStateV2Closing",
client)
return nil, nil
}
if state != stateSubscribed {
return nil, protocol.NewFatalClientErr(nil, "E_INVALID", "cannot RDY in current state")
}
count := int64(1)
if len(params) > 1 {
b10, err := protocol.ByteToBase10(params[1])
if err != nil {
return nil, protocol.NewFatalClientErr(err, "E_INVALID",
fmt.Sprintf("RDY could not parse count %s", params[1]))
}
count = int64(b10)
}
if count < 0 || count > p.ctx.nsqd.getOpts().MaxRdyCount {
// this needs to be a fatal error otherwise clients would have
// inconsistent state
return nil, protocol.NewFatalClientErr(nil, "E_INVALID",
fmt.Sprintf("RDY count %d out of range 0-%d", count, p.ctx.nsqd.getOpts().MaxRdyCount))
}
client.SetReadyCount(count)
return nil, nil
}
func (p *protocolV2) DPUB(client *clientV2, params [][]byte) ([]byte, error) {
var err error
if len(params) < 3 {
return nil, protocol.NewFatalClientErr(nil, "E_INVALID", "DPUB insufficient number of parameters")
}
topicName := string(params[1])
if !protocol.IsValidTopicName(topicName) {
return nil, protocol.NewFatalClientErr(nil, "E_BAD_TOPIC",
fmt.Sprintf("DPUB topic name %q is not valid", topicName))
}
timeoutMs, err := protocol.ByteToBase10(params[2])
if err != nil {
return nil, protocol.NewFatalClientErr(err, "E_INVALID",
fmt.Sprintf("DPUB could not parse timeout %s", params[2]))
}
timeoutDuration := time.Duration(timeoutMs) * time.Millisecond
if timeoutDuration < 0 || timeoutDuration > p.ctx.nsqd.getOpts().MaxReqTimeout {
return nil, protocol.NewFatalClientErr(nil, "E_INVALID",
fmt.Sprintf("DPUB timeout %d out of range 0-%d",
timeoutMs, p.ctx.nsqd.getOpts().MaxReqTimeout/time.Millisecond))
}
bodyLen, err := readLen(client.Reader, client.lenSlice)
if err != nil {
return nil, protocol.NewFatalClientErr(err, "E_BAD_MESSAGE", "DPUB failed to read message body size")
}
if bodyLen <= 0 {
return nil, protocol.NewFatalClientErr(nil, "E_BAD_MESSAGE",
fmt.Sprintf("DPUB invalid message body size %d", bodyLen))
}
if int64(bodyLen) > p.ctx.nsqd.getOpts().MaxMsgSize {
return nil, protocol.NewFatalClientErr(nil, "E_BAD_MESSAGE",
fmt.Sprintf("DPUB message too big %d > %d", bodyLen, p.ctx.nsqd.getOpts().MaxMsgSize))
}
messageBody := make([]byte, bodyLen)
_, err = io.ReadFull(client.Reader, messageBody)
if err != nil {
return nil, protocol.NewFatalClientErr(err, "E_BAD_MESSAGE", "DPUB failed to read message body")
}
if err := p.CheckAuth(client, "DPUB", topicName, ""); err != nil {
return nil, err
}
topic := p.ctx.nsqd.GetTopic(topicName)
msg := NewMessage(<-p.ctx.nsqd.idChan, messageBody)
msg.deferred = timeoutDuration
err = topic.PutMessage(msg)
if err != nil {
return nil, protocol.NewFatalClientErr(err, "E_DPUB_FAILED", "DPUB failed "+err.Error())
}
return okBytes, nil
}