/*
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* 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.
*
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*/
/*
* @test
* @bug 6384064
* @summary Check proper handling of interrupts
* @run main/othervm -XX:-UseVMInterruptibleIO Interrupt
* @author Martin Buchholz
*/
import java.util.*;
import java.util.concurrent.*;
import static java.util.concurrent.TimeUnit.*;
public class Interrupt {
static void checkInterrupted0(Iterable<Fun> fs, Executor ex) {
for (Fun f : fs) {
try {
ex.execute(new Runnable() {
final Thread thisThread = Thread.currentThread();
public void run() { thisThread.interrupt(); }});
f.f();
fail("Expected InterruptedException not thrown");
} catch (InterruptedException e) {
check(! Thread.interrupted());
} catch (Throwable t) { unexpected(t); }
}
}
static void checkInterrupted(Iterable<Fun> fs) {
final Executor immediateExecutor = new Executor() {
public void execute(Runnable r) {
r.run(); }};
final ScheduledThreadPoolExecutor stpe
= new ScheduledThreadPoolExecutor(1);
final Executor delayedExecutor = new Executor() {
public void execute(Runnable r) {
stpe.schedule(r, 20, MILLISECONDS); }};
checkInterrupted0(fs, immediateExecutor);
checkInterrupted0(fs, delayedExecutor);
stpe.shutdown();
}
static void testQueue(final BlockingQueue<Object> q) {
try {
final BlockingDeque<Object> deq =
(q instanceof BlockingDeque<?>) ?
(BlockingDeque<Object>) q : null;
q.clear();
List<Fun> fs = new ArrayList<Fun>();
fs.add(new Fun() { void f() throws Throwable
{ q.take(); }});
fs.add(new Fun() { void f() throws Throwable
{ q.poll(60, SECONDS); }});
if (deq != null) {
fs.add(new Fun() { void f() throws Throwable
{ deq.takeFirst(); }});
fs.add(new Fun() { void f() throws Throwable
{ deq.takeLast(); }});
fs.add(new Fun() { void f() throws Throwable
{ deq.pollFirst(7, SECONDS); }});
fs.add(new Fun() { void f() throws Throwable
{ deq.pollLast(7, SECONDS); }});
}
checkInterrupted(fs);
// fill q to capacity, to ensure insertions will block
while (q.remainingCapacity() > 0)
try { q.put(1); }
catch (Throwable t) { unexpected(t); }
fs.clear();
fs.add(new Fun() { void f() throws Throwable
{ q.put(1); }});
fs.add(new Fun() { void f() throws Throwable
{ q.offer(1, 7, SECONDS); }});
if (deq != null) {
fs.add(new Fun() { void f() throws Throwable
{ deq.putFirst(1); }});
fs.add(new Fun() { void f() throws Throwable
{ deq.putLast(1); }});
fs.add(new Fun() { void f() throws Throwable
{ deq.offerFirst(1, 7, SECONDS); }});
fs.add(new Fun() { void f() throws Throwable
{ deq.offerLast(1, 7, SECONDS); }});
}
checkInterrupted(fs);
} catch (Throwable t) {
System.out.printf("Failed: %s%n", q.getClass().getSimpleName());
unexpected(t);
}
}
private static void realMain(final String[] args) throws Throwable {
testQueue(new SynchronousQueue<Object>());
testQueue(new ArrayBlockingQueue<Object>(1,false));
testQueue(new ArrayBlockingQueue<Object>(1,true));
testQueue(new LinkedBlockingQueue<Object>(1));
testQueue(new LinkedBlockingDeque<Object>(1));
}
//--------------------- Infrastructure ---------------------------
static volatile int passed = 0, failed = 0;
static void pass() {passed++;}
static void fail() {failed++; Thread.dumpStack();}
static void fail(String msg) {System.out.println(msg); fail();}
static void unexpected(Throwable t) {failed++; t.printStackTrace();}
static void check(boolean cond) {if (cond) pass(); else fail();}
static 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 {
try {realMain(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");}
private abstract static class Fun {abstract void f() throws Throwable;}
}