Add a flag to control daemon or not, the signal handling miss

[liminghuang]

Follow the Signal handling to do a sample, my program needs a flag to control it into daemon mode or not.
I add a new flag to control it.
dMode = flag.Bool("d", false, "Enable/Disable daemon mode")
and check the flag to enable daemon or not

    if *dMode == true {
		cntxt := &daemon.Context{
			PidFileName: "sample.pid",
			PidFilePerm: 0644,
			LogFileName: "sample.log",
			LogFilePerm: 0640,
			WorkDir:     "./",
			Umask:       027,
			Args:        []string{"[go-daemon sample]"},
		}

		if len(daemon.ActiveFlags()) > 0 {
			d, err := cntxt.Search()
			if err != nil {
				log.Fatalf("Unable send signal to the daemon: %s", err.Error())
			}
			daemon.SendCommands(d)
			return
		}

		d, err := cntxt.Reborn()
		if err != nil {
			log.Fatalln(err)
		}
		if d != nil {
			return
		}
		defer cntxt.Release()
	}

The program look likes running normally in background by daemon, but the pid file is created with empty content, then use -s stop flag to stop daemon, I got the error msg
Unable send signal to the daemon: EOF

Any idea? Please

[Masquerade0097]

Facing the same problem. Can you please have a look @sevlyar?

[wbtlb]

Facing the same problem.

[deniszh]

Maybe related to #62
Will merge it and check.

[deniszh]

I tried signal-handling.go and I can't reproduce - for me it works fine, both on Linux and MacOS. If someone have clear steps to reproduce - please let me know.