func main() {
flag.Parse()
daemon.AddCommand(daemon.StringFlag(signal, "quit"), syscall.SIGQUIT, termHandler)
daemon.AddCommand(daemon.StringFlag(signal, "stop"), syscall.SIGTERM, termHandler)
error := gcfg.ReadFileInto(&cfg, "config")
if error != nil {
fmt.Println(error)
return
}
cntxt := &daemon.Context{
PidFileName: cfg.General.PidFileName,
PidFilePerm: 0644,
LogFileName: cfg.General.LogFileName,
LogFilePerm: 0640,
WorkDir: "./",
Umask: 027,
Args: []string{},
}
if len(daemon.ActiveFlags()) > 0 {
d, err := cntxt.Search()
if err != nil {
log.Fatalln("Unable send signal to the daemon:", err)
}
daemon.SendCommands(d)
return
}
d, err := cntxt.Reborn()
if err != nil {
log.Fatalln(err)
}
if d != nil {
return
}
defer cntxt.Release()
log.Println("- - - - - - - - - - - - - - -")
log.Println("daemon started")
go worker()
err = daemon.ServeSignals()
if err != nil {
log.Println("Error:", err)
}
log.Println("daemon terminated")
}
func Daemonize(childMain postChild, termHandler dmn.SignalHandlerFunc) {
dmn.SetSigHandler(termHandler, syscall.SIGTERM)
dmn.SetSigHandler(termHandler, syscall.SIGQUIT)
// Don't restart it if its running!
if IsDaemonized() {
return
}
child, err := context.Reborn()
if err != nil {
log.WithFields(log.Fields{
"error": err,
}).Fatal("could not recreate context!")
}
if child != nil {
isdmn = false
return
} else {
defer context.Release()
isdmn = true
go childMain()
err = dmn.ServeSignals()
if err != nil {
log.WithFields(log.Fields{
"error": err,
}).Fatal("error occured")
}
os.Exit(0)
}
}