98 lines
3.8 KiB
Java
98 lines
3.8 KiB
Java
/*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* This file is available under and governed by the GNU General Public
|
|
* License version 2 only, as published by the Free Software Foundation.
|
|
* However, the following notice accompanied the original version of this
|
|
* file:
|
|
*
|
|
* Written by Doug Lea with assistance from members of JCP JSR-166
|
|
* Expert Group and released to the public domain, as explained at
|
|
* http://creativecommons.org/publicdomain/zero/1.0/
|
|
*/
|
|
|
|
/*
|
|
* @test
|
|
* @bug 6445158
|
|
* @summary tests for Phaser.arrive()
|
|
*/
|
|
|
|
import java.util.ArrayList;
|
|
import java.util.List;
|
|
import java.util.concurrent.Phaser;
|
|
import java.util.concurrent.ThreadLocalRandom;
|
|
import java.util.concurrent.atomic.AtomicInteger;
|
|
|
|
public class Arrive {
|
|
void test(String[] args) throws Throwable {
|
|
for (int i = 0; i < 100; ++i)
|
|
doTest(args);
|
|
}
|
|
void doTest(String[] args) throws Throwable {
|
|
final int n = ThreadLocalRandom.current().nextInt(1, 10);
|
|
final Phaser startingGate = new Phaser(n);
|
|
final Phaser phaser = new Phaser(n);
|
|
final List<Thread> threads = new ArrayList<>();
|
|
final AtomicInteger count0 = new AtomicInteger(0);
|
|
final AtomicInteger count1 = new AtomicInteger(0);
|
|
final Runnable task = new Runnable() { public void run() {
|
|
equal(startingGate.getPhase(), 0);
|
|
startingGate.arriveAndAwaitAdvance();
|
|
equal(startingGate.getPhase(), 1);
|
|
int phase = phaser.arrive();
|
|
if (phase == 0)
|
|
count0.getAndIncrement();
|
|
else if (phase == 1)
|
|
count1.getAndIncrement();
|
|
else
|
|
fail();
|
|
}};
|
|
for (int i = 0; i < n; i++)
|
|
threads.add(new Thread(task));
|
|
for (Thread thread : threads)
|
|
thread.start();
|
|
for (Thread thread : threads)
|
|
thread.join();
|
|
equal(count0.get(), n);
|
|
equal(count1.get(), 0);
|
|
equal(phaser.getPhase(), 1);
|
|
}
|
|
|
|
//--------------------- Infrastructure ---------------------------
|
|
volatile int passed = 0, failed = 0;
|
|
void pass() {passed++;}
|
|
void fail() {failed++; Thread.dumpStack();}
|
|
void fail(String msg) {System.err.println(msg); fail();}
|
|
void unexpected(Throwable t) {failed++; t.printStackTrace();}
|
|
void check(boolean cond) {if (cond) pass(); else fail();}
|
|
void equal(Object x, Object y) {
|
|
if (x == null ? y == null : x.equals(y)) pass();
|
|
else fail(x + " not equal to " + y);}
|
|
public static void main(String[] args) throws Throwable {
|
|
new Arrive().instanceMain(args);}
|
|
public void instanceMain(String[] args) throws Throwable {
|
|
try {test(args);} catch (Throwable t) {unexpected(t);}
|
|
System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
|
|
if (failed > 0) throw new AssertionError("Some tests failed");}
|
|
}
|