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6772683: Thread.isInterrupted() fails to return true on multiprocessor PC

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Set the control edge for the field _interrupted load in inline_native_isInterrupted().

Reviewed-by: never
This commit is contained in:
Vladimir Kozlov 2009-05-21 10:05:36 -07:00
parent affd74638e
commit fdb3ca8708
2 changed files with 67 additions and 1 deletions
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3
hotspot/src/share/vm/opto/library_call.cpp
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@ -2593,7 +2593,8 @@ bool LibraryCallKit::inline_native_isInterrupted() {
Node* p = basic_plus_adr(top()/*!oop*/, tls_ptr, in_bytes(JavaThread::osthread_offset()));
Node* osthread = make_load(NULL, p, TypeRawPtr::NOTNULL, T_ADDRESS);
p = basic_plus_adr(top()/*!oop*/, osthread, in_bytes(OSThread::interrupted_offset()));
Node* int_bit = make_load(NULL, p, TypeInt::BOOL, T_INT);
// Set the control input on the field _interrupted read to prevent it floating up.
Node* int_bit = make_load(control(), p, TypeInt::BOOL, T_INT);
Node* cmp_bit = _gvn.transform( new (C, 3) CmpINode(int_bit, intcon(0)) );
Node* bol_bit = _gvn.transform( new (C, 2) BoolNode(cmp_bit, BoolTest::ne) );

65
hotspot/test/compiler/6772683/InterruptedTest.java Normal file
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@ -0,0 +1,65 @@
/*
* Copyright 2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
/*
* @test
* @bug 6772683
* @summary Thread.isInterrupted() fails to return true on multiprocessor PC
* @run main/othervm InterruptedTest
*/
public class InterruptedTest {
public static void main(String[] args) throws Exception {
Thread workerThread = new Thread("worker") {
public void run() {
System.out.println("Worker thread: running...");
while (!Thread.currentThread().isInterrupted()) {
}
System.out.println("Worker thread: bye");
}
};
System.out.println("Main thread: starts a worker thread...");
workerThread.start();
System.out.println("Main thread: waits at most 5s for the worker thread to die...");
workerThread.join(5000); // Wait 5 sec to let run() method to be compiled
int ntries = 0;
while (workerThread.isAlive() && ntries < 5) {
System.out.println("Main thread: interrupts the worker thread...");
workerThread.interrupt();
if (workerThread.isInterrupted()) {
System.out.println("Main thread: worker thread is interrupted");
}
ntries++;
System.out.println("Main thread: waits for the worker thread to die...");
workerThread.join(1000); // Wait 1 sec and try again
}
if (ntries == 5) {
System.out.println("Main thread: the worker thread dod not die");
System.exit(97);
}
System.out.println("Main thread: bye");
}
}