Golang Conn.Delete方法代碼示例

func (this *Beanstalkd) handle(id uint64, body []byte, conn *beanstalk.Conn) {
	this.processRaw(string(body))
	time.Sleep(time.Second * 2)
	if err := conn.Delete(id); err != nil {
		this.Log.Error("Could not delete job %d: %s", id, err.Error())
	}
}

// deleteJobs deletes the jobs with specified state
func (m *mainFrame) deleteJobs(c *beanstalk.Conn, tubeName, state string) (int, error) {
	var id uint64
	var err error

	t := &beanstalk.Tube{c, tubeName}
	n := 0

	for {
		switch state {
		case "ready":
			id, _, err = t.PeekReady()
		case "buried":
			id, _, err = t.PeekBuried()
		case "delayed":
			id, _, err = t.PeekDelayed()
		}

		if err != nil {
			return n, err
		}

		if err := c.Delete(id); err != nil {
			return n, err
		}
		n++
	}

	return n, nil
}

func main() {
	flag.Parse()
	var tb *beanstalk.TubeSet
	var conn_bs *beanstalk.Conn

	rs_timeout := time.Duration(Settings.BeanstalkdReserveTimeout)
	fail_wait := time.Duration(Settings.FailWait) * time.Second

	conn_bs, e := beanstalk.Dial("tcp", Settings.BeanstalkdAddr)

	if e != nil {
		log.Fatal("failed to connected to beanstalkd", e)
	}

	tb = beanstalk.NewTubeSet(conn_bs, Settings.BeanstalkdTube)

	for {
		// reserve a job
		id, job, e := tb.Reserve(rs_timeout)

		// timeout is valid, anything else is fatal
		if cerr, ok := e.(beanstalk.ConnError); ok && cerr.Err == beanstalk.ErrTimeout {
			time.Sleep(fail_wait)
			continue
		} else if e != nil {
			log.Fatal("failed to reserve job", e)
		} else {
			log.Println("read job id", id, "size", len(job), "bytes")
		}

		// connect to the gor replay server
		conn_gr, e := net.Dial("tcp", Settings.GorReplayAddr)

		if e != nil {
			log.Fatal("failed to connected to gor replay server", e)
			time.Sleep(fail_wait)
		}

		// write to gor replay server
		w, e := conn_gr.Write(job)

		if e != nil {
			log.Fatal("failed to write to", Settings.GorReplayAddr, "error", e)
		} else {
			log.Println("wrote", w, "bytes to", Settings.GorReplayAddr)
		}

		// close connection to gor replay server
		conn_gr.Close()

		// delete the job
		e = conn_bs.Delete(id)

		if e != nil {
			log.Println("failed to delete job id", id, "error", e)
		}
	}
}

func consumer() {
	var c *beanstalk.Conn = nil
	for {
		// connect to beanstalkd, infinite loop,
		if c == nil {
			var err error = nil
			c, err = beanstalk.Dial("tcp", CONN_BS_HOST+":"+CONN_BS_PORT)
			if err != nil {
				fmt.Println("Error connect to beanstalkd:", err.Error())
			} else {
				fmt.Println("Consumer connect to beanstalkd successfully.")
			}
		}

		/*
		   keys := make([]string, 0, len(mSNConn))
		   for k := range mSNConn {
		     keys = append(keys, k)
		   }
		   tubeSet := beanstalk.NewTubeSet(c, keys...)
		   id, body, err := tubeSet.Reserve(5*time.Second)
		*/
		// blocking api
		id, body, err := c.Reserve(120 * time.Second)
		if err != nil {
			// this err indicate the job queue is empty
			//fmt.Println("Error comsume beanstalk:", err.Error())
		} else {
			//
			val, ok := mSNConn[string(body[:3])]
			if ok {
				val.Write(body)
			}
			// delete job
			c.Delete(id)
			fmt.Printf("task id is: 【%d】; task content is 【%s】\n", id, string(body))
		}
	}
}

func main() {
	flag.Parse()

	if len(ignoreChannels) > 0 {
		common.SetIgnores(ignoreChannels)
	}

	var (
		bs  *beanstalk.Conn
		err error
	)

	if len(flag.Args()) >= 1 {
		bs, err = beanstalk.Dial("tcp", flag.Args()[0])

		if err != nil {
			log.Fatal(err)
		}

		if !quiet {
			log.Printf("Connected to [%s]", flag.Args()[0])
		}

		if len(flag.Args()) >= 2 {
			bs.Tube.Name = flag.Args()[1]
		}
	} else {
		log.Fatalf("provide the beanstalk publisher! like example.com:11300")
	}

	//Clear out the old messages before we start back up
	for {
		id, msg, err := bs.Reserve(5 * time.Second)

		if !quiet {
			noti_msg := common.IrcNotify{}
			json.Unmarshal(msg, &noti_msg)

			log.Printf("removing old message [%s]", noti_msg.Message)
		}

		if err != nil {
			break
		}

		err = bs.Delete(id)

		if err != nil {
			log.Fatal(err)
		}
	}

	for {
		id, msg, err := bs.Reserve(5 * time.Second)

		if err == nil {
			noti_msg := common.IrcNotify{}
			json.Unmarshal(msg, &noti_msg)

			go common.Display(noti_msg, linger, quiet)

			err = bs.Delete(id)

			if err != nil {
				log.Fatal(err)
			}
		}

		time.Sleep(500 * time.Millisecond)
	}
}

func QueueDelete(conn *beanstalk.Conn, id uint64) (err error) {
	return conn.Delete(id)
}

func getDelete(c *beanstalk.Conn, id uint64, body []byte) {
	c.Delete(id)
}