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/*
* Copyright (c) 2021, 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 SuspendBlocked
* @bug 8270085
* @library /test/lib
* @build SuspendBlocked
* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI SuspendBlocked
*/
import jdk.test.lib.Asserts;
import jdk.test.whitebox.WhiteBox;
public class SuspendBlocked {
public static void main(String... args) throws Exception {
Thread suspend_thread = new Thread(() -> run_loop());
suspend_thread.start();
WhiteBox wb = WhiteBox.getWhiteBox();
for (int i = 0; i < 100; i++) {
suspend_thread.suspend();
wb.lockAndBlock(/* suspender= */ true);
suspend_thread.resume();
Thread.sleep(1);
}
suspend_thread.join();
}
public static void run_loop() {
WhiteBox wb = WhiteBox.getWhiteBox();
for (int i = 0; i < 100; i++) {
wb.lockAndBlock(/* suspender= */ false);
}
}
}
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