tasks.all.logger.lifecycle("build finished from \${tasks.all.path}")
                }
            }

            threaded {
                println("threaded configuration output")
            }

            def threaded(Closure action) {
                Thread.start(action).join()
            }
        """

        when:
        succeeds("all")

        then:

	newContent, err := c.newTLSContent()
	if err != nil {
		return err
	}
	// if the content is the same as what we currently have, we can simply skip it.  This works because we are single
	// threaded.  If you ever make this multi-threaded, add a lock.
	if newContent.Equal(c.currentlyServedContent) {
		return nil
	}

	// make a shallow copy and override the dynamic pieces which have changed.

import org.eclipse.aether.transfer.TransferEvent;
import org.eclipse.aether.transfer.TransferResource;

/**
 * Console download progress meter.
 * <p>
 * This listener is not thread-safe and should be wrapped in the {@link SimplexTransferListener} in a multi-threaded scenario.
 */
public class ConsoleMavenTransferListener extends AbstractMavenTransferListener {

    logging.info("start at port %s" % (p))
    # Make it compatible with IPv6 if Linux
    if sys.platform == "linux":
        app.run(host='::', port=p, debug=False, threaded=True)
    else:

  /** Logger to log exceptions caught when running runnables. */
  private static final LazyLogger log = new LazyLogger(ExecutionList.class);

  /**
   * The runnable, executor pairs to execute. This acts as a stack threaded through the {@link
   * RunnableExecutorPair#next} field.
   */
  @GuardedBy("this")
  @CheckForNull
  private RunnableExecutorPair runnables;

  @GuardedBy("this")
  private boolean executed;

  /** Logger to log exceptions caught when running runnables. */
  private static final LazyLogger log = new LazyLogger(ExecutionList.class);

  /**
   * The runnable, executor pairs to execute. This acts as a stack threaded through the {@link
   * RunnableExecutorPair#next} field.
   */
  @GuardedBy("this")
  @CheckForNull
  private RunnableExecutorPair runnables;

  @GuardedBy("this")
  private boolean executed;

// accidentally inherits the write end of a pipe, then the reader
// of that pipe will not see EOF until that child exits, potentially
// causing the parent program to hang. This is a common problem
// in threaded C programs that use popen.
//
// Luckily, the file descriptors that are most important not to
// inherit are not the ones that can take an arbitrarily long time
// to create: pipe returns instantly, and the net package uses

         */
        return executionPlan.getContents().getFilteredTasks();
    }

    private void fireWhenReady() {
        // We know that we're running single-threaded here, so we can use coarse grained project locks
        gradleInternal.getOwner().getProjects().withMutableStateOfAllProjects(
            () -> buildOperationRunner.run(

	if !cache.WaitForCacheSync(c.internalStopCh, c.serviceCIDRSynced, c.ipAddressSynced) {
		runtime.HandleError(fmt.Errorf("timed out waiting for caches to sync"))
		return
	}

	// this is single threaded only one serviceCIDR at a time
	go wait.Until(c.runWorker, time.Second, c.internalStopCh)

	<-c.internalStopCh
}

func (c *MetaAllocator) runWorker() {
	for c.processNextItem() {
	}
}

*p += i
</pre>

<p>
If <code>i</code> and <code>*p</code> start equal to 2,
the original code does <code>*p = 3</code>,
so a racing thread can read only 2 or 3 from <code>*p</code>.
The rewritten code does <code>*p = 1</code> and then <code>*p = 3</code>,
allowing a racing thread to read 1 as well.
</p>

<p>
Note that all these optimizations are permitted in C/C++ compilers: