func NewRunner(f ...func(stop chan struct{})) *Runner {
	return &Runner{loopFuncs: f}
}

// Start begins running.
func (r *Runner) Start() {
	r.lock.Lock()
	defer r.lock.Unlock()
	if r.stop == nil {
		c := make(chan struct{})
		r.stop = &c
		for i := range r.loopFuncs {
			go r.loopFuncs[i](*r.stop)
		}
	}
}

// Stop stops running.
func (r *Runner) Stop() {
	r.lock.Lock()
	defer r.lock.Unlock()

 * 3: "Enforce the singleton property with a private constructor or an enum type". For example:
 *
 * <pre>{@code
 * public enum PersonFunnel implements Funnel<Person> {
 *   INSTANCE;
 *   public void funnel(Person person, PrimitiveSink into) {
 *     into.putUnencodedChars(person.getFirstName())
 *         .putUnencodedChars(person.getLastName())
 *         .putInt(person.getAge());
 *   }
 * }

 * 3: "Enforce the singleton property with a private constructor or an enum type". For example:
 *
 * <pre>{@code
 * public enum PersonFunnel implements Funnel<Person> {
 *   INSTANCE;
 *   public void funnel(Person person, PrimitiveSink into) {
 *     into.putUnencodedChars(person.getFirstName())
 *         .putUnencodedChars(person.getLastName())
 *         .putInt(person.getAge());
 *   }
 * }

    def setup() {
        runner.warmUpRuns = 11
        runner.runs = 21
        runner.minimumBaseVersion = "3.5"
    }

    def "clean assemble with remote http cache"() {
        setupTestProject(runner)
        protocol = "http"
        pushToRemote = true
        runner.useDaemon = false
        runner.warmUpRuns = 2
        runner.runs = 8
        runner.addBuildMutator { cleanLocalCache() }

        given:
        runner.tasksToRun = ['tasks']
        runner.runs = (runner.testProject == (LARGE_JAVA_MULTI_PROJECT_KOTLIN_DSL.projectName) ? 5 : 10)
        runner.useDaemon = false
        runner.addBuildMutator { invocationSettings ->
            new ClearGradleUserHomeMutator(invocationSettings.gradleUserHome, AbstractCleanupMutator.CleanupSchedule.BUILD)
        }
        runner.addBuildMutator { invocationSettings ->

func (runner *runner) UpdateVirtualServer(vs *VirtualServer) error {
	svc, err := toIPVSService(vs)
	if err != nil {
		return fmt.Errorf("could not convert local virtual server to IPVS service: %w", err)
	}
	runner.mu.Lock()
	defer runner.mu.Unlock()
	return runner.ipvsHandle.UpdateService(svc)
}

// DeleteVirtualServer is part of ipvs.Interface.

    def setup() {
        runner.minimumBaseVersion = "6.8"
        runner.warmUpRuns = 3
    }

    def setupGradleOpts() {
        useG1GarbageCollectorOnJava8(runner)
    }

    def "buildSrc abi change"() {
        given:
        setupGradleOpts()
        runner.tasksToRun = ['help']
        runner.runs = determineNumberOfRuns(runner.testProject)

        and:

public final class Funnels {
  private Funnels() {}

  /** Returns a funnel that extracts the bytes from a {@code byte} array. */
  public static Funnel<byte[]> byteArrayFunnel() {
    return ByteArrayFunnel.INSTANCE;
  }

  private enum ByteArrayFunnel implements Funnel<byte[]> {
    INSTANCE;

    @Override
    public void funnel(byte[] from, PrimitiveSink into) {
      into.putBytes(from);
    }

    @Override

public final class Funnels {
  private Funnels() {}

  /** Returns a funnel that extracts the bytes from a {@code byte} array. */
  public static Funnel<byte[]> byteArrayFunnel() {
    return ByteArrayFunnel.INSTANCE;
  }

  private enum ByteArrayFunnel implements Funnel<byte[]> {
    INSTANCE;

    @Override
    public void funnel(byte[] from, PrimitiveSink into) {
      into.putBytes(from);
    }

    @Override

        given:
        runner.testGroup = "Gradle vs Maven test build using Java plugin"
        configureMavenOptions(JavaTestProject.projectFor(runner.testProject))
        runner.gradleTasks = ["clean", gradleTask]
        runner.equivalentMavenTasks = ["clean", mavenTask]
        if (mavenTask == "package") {
            runner.mvnArgs << "-Dmaven.test.skip=true"
        }
        runner.warmUpRuns = 2
        runner.runs = 5