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Golang Command.Start方法代碼示例

本文整理匯總了Golang中github.com/coreos/etcd/Godeps/_workspace/src/github.com/spf13/cobra.Command.Start方法的典型用法代碼示例。如果您正苦於以下問題:Golang Command.Start方法的具體用法?Golang Command.Start怎麽用?Golang Command.Start使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在github.com/coreos/etcd/Godeps/_workspace/src/github.com/spf13/cobra.Command的用法示例。


在下文中一共展示了Command.Start方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: CommandFunc

func CommandFunc(cmd *cobra.Command, args []string) {
	defer func() {
		fmt.Println("deleting...")
		os.RemoveAll("infra1.etcd")
		os.RemoveAll("infra2.etcd")
		os.RemoveAll("infra3.etcd")
	}()

	oldCmds := make([]*exec.Cmd, 3)
	oldOutputs := make([]io.ReadCloser, 3)
	newCmds := make([]*exec.Cmd, 3)
	newOutputs := make([]io.ReadCloser, 3)
	for i := range oldCmds {
		oldCmd := exec.Command(cmdFlag.EtcdOld, getInfraFlags(i+1)...)
		oldCmds[i] = oldCmd
		oldOutput, err := oldCmd.StderrPipe()
		if err != nil {
			fmt.Fprintln(os.Stderr, err)
			return
		}
		oldOutputs[i] = oldOutput

		newCmd := exec.Command(cmdFlag.EtcdNew, getInfraFlags(i+1)...)
		newCmds[i] = newCmd
		newOutput, err := newCmd.StderrPipe()
		if err != nil {
			fmt.Fprintln(os.Stderr, err)
			return
		}
		newOutputs[i] = newOutput
	}

	errChan := make(chan error)
	done := make(chan struct{})
	for i := range oldCmds {
		cmd := oldCmds[i]
		go func(i int, cmd *exec.Cmd) {
			if err := cmd.Start(); err != nil {
				errChan <- err
				return
			}
			done <- struct{}{}
		}(i, cmd)
	}
	cn := 0
	for cn != 3 {
		cn++
		select {
		case err := <-errChan:
			fmt.Fprintln(os.Stderr, err)
			return
		case <-done:
		}
	}

	becameActiveCount := 0
	for i, o := range oldOutputs {
		go func(i int, reader io.ReadCloser) {
			scanner := bufio.NewScanner(reader)
			for {
				for scanner.Scan() {
					txt := scanner.Text()
					fmt.Printf("[old infra%d] %s\n", i+1, txt)
					if strings.Contains(txt, memberStartReadyString) {
						mu.Lock()
						nodeStatus[fmt.Sprintf("infra%d", i+1)] = "LIVE"
						mu.Unlock()
						fmt.Printf("[old infra%d] %s  READY!!!!!!!!!!!!!\n", i+1, txt)
						done <- struct{}{}
					}
					if strings.HasSuffix(txt, memberReStartReadySuffix) {
						fmt.Printf("[old infra%d] reconnected!\n", i+1)
						mu.Lock()
						nodeStatus[fmt.Sprintf("infra%d", i+1)] = "LIVE"
						mu.Unlock()
						becameActiveCount++
					}
				}
			}
			if err := scanner.Err(); err != nil {
				errChan <- err
				return
			}
		}(i, o)
	}
	for i, o := range newOutputs {
		go func(i int, reader io.ReadCloser) {
			scanner := bufio.NewScanner(reader)
			for {
				for scanner.Scan() {
					txt := scanner.Text()
					fmt.Printf("[new infra%d] %s\n", i+1, txt)
					if strings.HasSuffix(txt, memberReStartReadySuffix) {
						fmt.Printf("[new infra%d] reconnected!\n", i+1)
						mu.Lock()
						nodeStatus[fmt.Sprintf("infra%d", i+1)] = "LIVE"
						mu.Unlock()
						becameActiveCount++
					}
				}
//.........這裏部分代碼省略.........
開發者ID:gyuho,項目名稱:learn,代碼行數:101,代碼來源:24_stream_long_running.go


注:本文中的github.com/coreos/etcd/Godeps/_workspace/src/github.com/spf13/cobra.Command.Start方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台,相關代碼片段篩選自各路編程大神貢獻的開源項目,源碼版權歸原作者所有,傳播和使用請參考對應項目的License;未經允許,請勿轉載。