// Supports following actions:
// - restart (restarts all the MinIO instances in a setup)
// - stop (stops all the MinIO instances in a setup)
// - freeze (freezes all incoming S3 API calls)
// - unfreeze (unfreezes previously frozen S3 API calls)
func (a adminAPIHandlers) ServiceHandler(w http.ResponseWriter, r *http.Request) {
	ctx := r.Context()

	vars := mux.Vars(r)
	action := vars["action"]

	var serviceSig serviceSignal

	// build -n. We tried using a file that does not exist, but that fails on
	// systems with GCC version 4.2.1; that is the last GPLv2 version of GCC,
	// so some systems have frozen on it. Now we pass an empty file on stdin,
	// which should work at least for GCC and clang.
	//
	// If the argument is "-Wl,", then it is testing the linker. In that case,

        failure.assertHasCause("broken: broken.jar")
        failure.assertHasCause("Could not download a-1.3.jar (test:a:1.3)")
        failure.assertHasCause("Failed to transform broken-2.0.jar (test:broken:2.0) to match attributes {artifactType=size, org.gradle.status=release}")
        failure.assertHasCause("broken: broken-2.0.jar")

        and:

		broken := false
		numOpen := db.numOpen

		*hook = func() bool {
			if !broken {
				broken = true
			}
			return broken
		}

		if err := op(); !errors.Is(err, driver.ErrBadConn) {
			t.Errorf(name+": %v", err)
			return
		}

		if !broken {
			t.Error(name + ": Failed to simulate broken connection")
		}
		*hook = nil

				TimeZone:          pointer.String("broken"),
				ConcurrencyPolicy: batch.AllowConcurrent,
				JobTemplate: batch.JobTemplateSpec{
					Spec: batch.JobSpec{
						Template: validPodTemplateSpec,
					},
				},
			},
			new: &batch.CronJobSpec{
				Schedule:          "0 * * * *",
				TimeZone:          pointer.String("broken"),
				ConcurrencyPolicy: batch.AllowConcurrent,

                    println "Transformed \$input.name to \$output.name into \$outputDirectory"

                    if (System.getProperty("broken")) {
                        new File(outputDirectory, "some-garbage").text = "delete-me"
                        throw new RuntimeException("broken")
                    }
                }
            }

            allprojects {
                dependencies {

				# TYPE kubelet_orphaned_runtime_pods_total counter
				kubelet_orphaned_runtime_pods_total 1
				`,

	*brokenState
}

type brokenState struct {
	sync.Mutex
	broken bool
}

func (w *breakableConn) Write(b []byte) (n int, err error) {
	w.Lock()
	defer w.Unlock()
	if w.broken {
		return 0, errors.New("some write error")
	}
	return w.Conn.Write(b)
}

// Issue 34978: don't cache a broken HTTP/2 connection
func TestDontCacheBrokenHTTP2Conn(t *testing.T) {

  It did so indeed, and much sooner than she had expected:
before she had drunk half the bottle, she found her head pressing
against the ceiling, and had to stoop to save her neck from being
broken.  She hastily put down the bottle, saying to herself
`That's quite enough--I hope I shan't grow any more--As it is, I
can't get out at the door--I do wish I hadn't drunk quite so
much!'

  It did so indeed, and much sooner than she had expected:
before she had drunk half the bottle, she found her head pressing
against the ceiling, and had to stoop to save her neck from being
broken.  She hastily put down the bottle, saying to herself
`That's quite enough--I hope I shan't grow any more--As it is, I
can't get out at the door--I do wish I hadn't drunk quite so
much!'