Function notifyContext

cmd/docker/docker.go:56–80

(ctx context.Context, signals ...os.Signal)

}

func notifyContext(ctx context.Context, signals ...os.Signal) (context.Context, context.CancelFunc) {
	ch := make(chan os.Signal, 1)
	signal.Notify(ch, signals...)

	ctxCause, cancel := context.WithCancelCause(ctx)

	go func() {
		select {
		case <-ctx.Done():
			signal.Stop(ch)
			return
		case sig := <-ch:
			cancel(errCtxSignalTerminated{
				signal: sig,
			})
			signal.Stop(ch)
			return
		}
	}()

	return ctxCause, func() {
		signal.Stop(ch)
		cancel(nil)
	}
}

func dockerMain(ctx context.Context) error {
	ctx, cancelNotify := notifyContext(ctx, platformsignals.TerminationSignals...)