func (p *ProtocolV2) REQ(client *ClientV2, params [][]byte) ([]byte, error) {
state := atomic.LoadInt32(&client.State)
if state != nsq.StateSubscribed && state != nsq.StateClosing {
return nil, util.NewFatalClientErr(nil, "E_INVALID", "cannot REQ in current state")
}
if len(params) < 3 {
return nil, util.NewFatalClientErr(nil, "E_INVALID", "REQ insufficient number of params")
}
id := *(*nsq.MessageID)(unsafe.Pointer(¶ms[1][0]))
timeoutMs, err := util.ByteToBase10(params[2])
if err != nil {
return nil, util.NewFatalClientErr(err, "E_INVALID",
fmt.Sprintf("REQ could not parse timeout %s", params[2]))
}
timeoutDuration := time.Duration(timeoutMs) * time.Millisecond
if timeoutDuration < 0 || timeoutDuration > maxTimeout {
return nil, util.NewFatalClientErr(nil, "E_INVALID",
fmt.Sprintf("REQ timeout %d out of range 0-%d", timeoutDuration, maxTimeout))
}
err = client.Channel.RequeueMessage(client.ID, id, timeoutDuration)
if err != nil {
return nil, util.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 == nsq.StateClosing {
// just ignore ready changes on a closing channel
log.Printf("PROTOCOL(V2): [%s] ignoring RDY after CLS in state ClientStateV2Closing", client)
return nil, nil
}
if state != nsq.StateSubscribed {
return nil, util.NewFatalClientErr(nil, "E_INVALID", "cannot RDY in current state")
}
count := int64(1)
if len(params) > 1 {
b10, err := util.ByteToBase10(params[1])
if err != nil {
return nil, util.NewFatalClientErr(err, "E_INVALID",
fmt.Sprintf("RDY could not parse count %s", params[1]))
}
count = int64(b10)
}
if count < 0 || count > p.context.nsqd.options.maxRdyCount {
// this needs to be a fatal error otherwise clients would have
// inconsistent state
return nil, util.NewFatalClientErr(nil, "E_INVALID",
fmt.Sprintf("RDY count %d out of range 0-%d", count, p.context.nsqd.options.maxRdyCount))
}
client.SetReadyCount(count)
return nil, nil
}