| 492 |
|
* computations (as may be determined using method {@link |
| 493 |
|
* #inForkJoinPool}). Attempts to invoke in other contexts result |
| 494 |
|
* in exceptions or errors, possibly including ClassCastException. |
| 495 |
+ |
* |
| 496 |
+ |
* @return <code>this</code>, to simplify usage. |
| 497 |
|
*/ |
| 498 |
< |
public final void fork() { |
| 498 |
> |
public final ForkJoinTask<V> fork() { |
| 499 |
|
((ForkJoinWorkerThread) Thread.currentThread()) |
| 500 |
|
.pushTask(this); |
| 501 |
+ |
return this; |
| 502 |
|
} |
| 503 |
|
|
| 504 |
|
/** |
| 606 |
|
* in exceptions or errors, possibly including ClassCastException. |
| 607 |
|
* |
| 608 |
|
* @param tasks the collection of tasks |
| 609 |
+ |
* @return the tasks argument, to simplify usage |
| 610 |
|
* @throws NullPointerException if tasks or any element are null |
| 611 |
|
* @throws RuntimeException or Error if any task did so |
| 612 |
|
*/ |
| 613 |
< |
public static void invokeAll(Collection<? extends ForkJoinTask<?>> tasks) { |
| 613 |
> |
public static <T extends ForkJoinTask<?>> Collection<T> invokeAll(Collection<T> tasks) { |
| 614 |
|
if (!(tasks instanceof List<?>)) { |
| 615 |
|
invokeAll(tasks.toArray(new ForkJoinTask<?>[tasks.size()])); |
| 616 |
< |
return; |
| 616 |
> |
return tasks; |
| 617 |
|
} |
| 618 |
|
@SuppressWarnings("unchecked") |
| 619 |
|
List<? extends ForkJoinTask<?>> ts = |
| 648 |
|
} |
| 649 |
|
if (ex != null) |
| 650 |
|
rethrowException(ex); |
| 651 |
+ |
return tasks; |
| 652 |
|
} |
| 653 |
|
|
| 654 |
|
/** |
| 1039 |
|
.pollTask(); |
| 1040 |
|
} |
| 1041 |
|
|
| 1042 |
+ |
// adaptors |
| 1043 |
+ |
|
| 1044 |
+ |
/** |
| 1045 |
+ |
* Returns a new ForkJoinTask that performs the <code>run</code> |
| 1046 |
+ |
* method of the given Runnable as its action, and returns a null |
| 1047 |
+ |
* result upon <code>join</code>. |
| 1048 |
+ |
* |
| 1049 |
+ |
* @param runnable the runnable action |
| 1050 |
+ |
* @return the task |
| 1051 |
+ |
*/ |
| 1052 |
+ |
public static ForkJoinTask<Void> adapt(Runnable runnable) { |
| 1053 |
+ |
return new ForkJoinPool.AdaptedRunnable<Void>(runnable, null); |
| 1054 |
+ |
} |
| 1055 |
+ |
|
| 1056 |
+ |
/** |
| 1057 |
+ |
* Returns a new ForkJoinTask that performs the <code>run</code> |
| 1058 |
+ |
* method of the given Runnable as its action, and returns the |
| 1059 |
+ |
* given result upon <code>join</code>. |
| 1060 |
+ |
* |
| 1061 |
+ |
* @param runnable the runnable action |
| 1062 |
+ |
* @param result the result upon completion |
| 1063 |
+ |
* @return the task |
| 1064 |
+ |
*/ |
| 1065 |
+ |
public static <T> ForkJoinTask<T> adapt(Runnable runnable, T result) { |
| 1066 |
+ |
return new ForkJoinPool.AdaptedRunnable<T>(runnable, result); |
| 1067 |
+ |
} |
| 1068 |
+ |
|
| 1069 |
+ |
/** |
| 1070 |
+ |
* Returns a new ForkJoinTask that performs the <code>call</code> |
| 1071 |
+ |
* method of the given Callable as its action, and returns its |
| 1072 |
+ |
* result upon <code>join</code>, translating any checked |
| 1073 |
+ |
* exceptions encountered into <code>RuntimeException<code>. |
| 1074 |
+ |
* |
| 1075 |
+ |
* @param callable the callable action |
| 1076 |
+ |
* @return the task |
| 1077 |
+ |
*/ |
| 1078 |
+ |
public static <T> ForkJoinTask<T> adapt(Callable<T> callable) { |
| 1079 |
+ |
return new ForkJoinPool.AdaptedCallable<T>(callable); |
| 1080 |
+ |
} |
| 1081 |
+ |
|
| 1082 |
|
// Serialization support |
| 1083 |
|
|
| 1084 |
|
private static final long serialVersionUID = -7721805057305804111L; |
| 1149 |
|
} |
| 1150 |
|
|
| 1151 |
|
private static final sun.misc.Unsafe UNSAFE = getUnsafe(); |
| 1152 |
< |
static final long statusOffset = |
| 1152 |
> |
private static final long statusOffset = |
| 1153 |
|
fieldOffset("status", ForkJoinTask.class); |
| 1154 |
|
|
| 1155 |
|
} |
