| /* |
| * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 6267833 |
| * @summary Tests for invokeAny, invokeAll |
| * @author Martin Buchholz |
| */ |
| |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.atomic.AtomicLong; |
| |
| public class Invoke { |
| static volatile int passed = 0, failed = 0; |
| |
| static void fail(String msg) { |
| failed++; |
| new AssertionError(msg).printStackTrace(); |
| } |
| |
| static void pass() { |
| passed++; |
| } |
| |
| static void unexpected(Throwable t) { |
| failed++; |
| t.printStackTrace(); |
| } |
| |
| static void check(boolean condition, String msg) { |
| if (condition) pass(); else fail(msg); |
| } |
| |
| static void check(boolean condition) { |
| check(condition, "Assertion failure"); |
| } |
| |
| public static void main(String[] args) { |
| try { |
| final AtomicLong count = new AtomicLong(0); |
| ExecutorService fixed = Executors.newFixedThreadPool(5); |
| class Inc implements Callable<Long> { |
| public Long call() throws Exception { |
| Thread.sleep(200); // Catch IE from possible cancel |
| return count.incrementAndGet(); |
| } |
| } |
| List<Inc> tasks = Arrays.asList(new Inc(), new Inc(), new Inc()); |
| List<Future<Long>> futures = fixed.invokeAll(tasks); |
| check(futures.size() == tasks.size()); |
| check(count.get() == tasks.size()); |
| |
| long gauss = 0; |
| for (Future<Long> future : futures) gauss += future.get(); |
| check(gauss == ((tasks.size()+1)*tasks.size())/2); |
| |
| ExecutorService single = Executors.newSingleThreadExecutor(); |
| long save = count.get(); |
| check(single.invokeAny(tasks) == save + 1); |
| check(count.get() == save + 1); |
| |
| fixed.shutdown(); |
| single.shutdown(); |
| |
| } catch (Throwable t) { unexpected(t); } |
| |
| System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed); |
| if (failed > 0) throw new Error("Some tests failed"); |
| } |
| } |