Function trapSignalsCrossPlatform

sigtrap.go:37–54

trapSignalsCrossPlatform captures SIGINT or interrupt (depending on the OS), which initiates a graceful shutdown. A second SIGINT or interrupt will forcefully exit the process immediately.

()

// on the OS), which initiates a graceful shutdown. A second SIGINT
// or interrupt will forcefully exit the process immediately.
func trapSignalsCrossPlatform() {
	go func() {
		shutdown := make(chan os.Signal, 1)
		signal.Notify(shutdown, os.Interrupt)

		for i := 0; true; i++ {
			<-shutdown

			if i > 0 {
				Log().Warn("force quit", zap.String("signal", "SIGINT"))
				os.Exit(ExitCodeForceQuit)
			}

			Log().Info("shutting down", zap.String("signal", "SIGINT"))
			go exitProcessFromSignal("SIGINT")
		}
	}()
}

// exitProcessFromSignal exits the process from a system signal.
func exitProcessFromSignal(sigName string) {