*/
  static void delay(long millis) throws InterruptedException {
    long startTime = System.nanoTime();
    long ns = millis * 1000 * 1000;
    for (; ; ) {
      if (millis > 0L) Thread.sleep(millis);
      else // too short to sleep
      Thread.yield();
      long d = ns - (System.nanoTime() - startTime);
      if (d > 0L) millis = d / (1000 * 1000);
      else break;
    }
  }

    void start(Runnable action) {
        executor.execute(action)
    }

    /**
     * Returns a range that contains the given milliseconds +/- some error margin
     */
    Range approx(long millis) {
        return new Range(millis)
    }

   */
  static void delay(long millis) throws InterruptedException {
    long startTime = System.nanoTime();
    long ns = millis * 1000 * 1000;
    for (; ; ) {
      if (millis > 0L) Thread.sleep(millis);
      else // too short to sleep
      Thread.yield();
      long d = ns - (System.nanoTime() - startTime);
      if (d > 0L) millis = d / (1000 * 1000);
      else break;
    }
  }

 */

package org.gradle.internal.file;

import java.io.File;

public interface FileAccessTimeJournal {

    long getLastAccessTime(File file);

    void setLastAccessTime(File file, long millis);

    void deleteLastAccessTime(File file);

                details.directory == detailsFromJdk7Walker.directory &&
                (details.directory || details.size == detailsFromJdk7Walker.size)
        }
    }

    private static long millisToSeconds(long millis) {
        millis / 1000L
    }

    private static generateFilesAndSubDirectories(TestFile parentDir, int fileCount, int dirCount, int maxDepth, int currentDepth, AtomicInteger fileIdGenerator) {

    // 20 percent difference is something where we should always fail
    private static final double HIGH_RELATIVE_MEDIAN_DIFFERENCE = 0.2
    private static final Amount<Duration> MINIMUM_DIFFERENCE_WE_CAN_MEASURE = Duration.millis(10)

    final String version
    final MeasuredOperationList results = new MeasuredOperationList()

    BaselineVersion(String version) {
        this.version = version
        results.name = "Gradle $version"

/**
 * A device for obtaining the current time.
 *
 * @see Time#clock()
 */
@ServiceScope(Scope.Global.class)
public interface Clock {

    /**
     * The current time in millis.
     */
    long getCurrentTime();

    LARGE(UNEXPECTED_HANG_DELAY_MILLIS * 2, (2 * UNEXPECTED_HANG_DELAY_MILLIS) + "ms"),
    MAX(Long.MAX_VALUE, "+oo");

    final long millis;
    final String label;

    Timeout(long millis, String label) {
      this.millis = millis;
      this.label = label;
    }

    @Override
    public String toString() {
      return label;
    }
  }

    }

    public void awaitTermination() {
        awaitTermination(0);
    }

    public void awaitTermination(final long millis) {
        if (parentThread != null) {
            try {
                parentThread.join(millis);
            } catch (final InterruptedException e) {
                logger.warn("Interrupted job at {}", parentThread.getName());
            }
        }
    }

//        "medium"  | 'source file change'    | millis(300)                | 'modules/project5/src/src100_c.c' | this.&changeCSource
        "medium"  | 'header file change'    | millis(140)                | 'modules/project1/src/src50_h.h'  | this.&changeHeader
//        "medium"  | 'recompile all sources' | millis(1500)               | 'common.gradle'                   | this.&changeArgs
    }
...
```