/**
 * Abstract interface for objects that can concurrently add longs.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
interface LongAddable {
  void increment();

  void add(long x);

  long sum();

          || !(uncontended = a.cas(v = a.value, v + x))) retryUpdate(x, hc, uncontended);
    }
  }

  /** Equivalent to {@code add(1)}. */
  @Override
  public void increment() {
    add(1L);
  }

  /** Equivalent to {@code add(-1)}. */
  public void decrement() {
    add(-1L);
  }

  /**
   * Returns the current sum. The returned value is NOT an atomic snapshot; invocation in

          || !(uncontended = a.cas(v = a.value, v + x))) retryUpdate(x, hc, uncontended);
    }
  }

  /** Equivalent to {@code add(1)}. */
  @Override
  public void increment() {
    add(1L);
  }

  /** Equivalent to {@code add(-1)}. */
  public void decrement() {
    add(-1L);
  }

  /**
   * Returns the current sum. The returned value is NOT an atomic snapshot; invocation in

    assertEquals(20, ticker.read());

    for (TimeUnit timeUnit : EnumSet.allOf(TimeUnit.class)) {
      ticker.setAutoIncrementStep(0, timeUnit);
      assertEquals(
          "Expected no auto-increment when setting autoIncrementStep to 0 " + timeUnit,
          30,
          ticker.read());
    }
  }

  public void testAutoIncrement_negative() {
    FakeTicker ticker = new FakeTicker();
    try {

    assertEquals(20, ticker.read());

    for (TimeUnit timeUnit : EnumSet.allOf(TimeUnit.class)) {
      ticker.setAutoIncrementStep(0, timeUnit);
      assertEquals(
          "Expected no auto-increment when setting autoIncrementStep to 0 " + timeUnit,
          30,
          ticker.read());
    }
  }

  public void testAutoIncrement_negative() {
    FakeTicker ticker = new FakeTicker();
    try {

              if (workerRunningState == RUNNING) {
                // Don't want to have two workers pulling from the queue.
                return;
              } else {
                // Increment the run counter to avoid the ABA problem of a submitter marking the
                // thread as QUEUED after it already ran and exhausted the queue before returning
                // from execute().

 */

package com.google.common.cache;

/**
 * GWT emulated version of LongAdder.
 *
 * @author Charles Fry
 */
class LongAdder implements LongAddable {

  private long value;

  public void increment() {
    value++;
  }

  public void add(long x) {
    value += x;
  }

  public long sum() {
    return value;
  }

/**
 * Abstract interface for objects that can concurrently add longs.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
interface LongAddable {
  void increment();

  void add(long x);

  long sum();

  }

  public static LongAddable create() {
    return SUPPLIER.get();
  }

  private static final class PureJavaLongAddable extends AtomicLong implements LongAddable {
    @Override
    public void increment() {
      getAndIncrement();
    }

    @Override
    public void add(long x) {
      getAndAdd(x);
    }

    @Override
    public long sum() {
      return get();
    }
  }

  }

  public static LongAddable create() {
    return SUPPLIER.get();
  }

  private static final class PureJavaLongAddable extends AtomicLong implements LongAddable {
    @Override
    public void increment() {
      getAndIncrement();
    }

    @Override
    public void add(long x) {
      getAndAdd(x);
    }

    @Override
    public long sum() {
      return get();
    }
  }