kevinw@8194: /*
kevinw@8194:  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
kevinw@8194:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
kevinw@8194:  *
kevinw@8194:  * This code is free software; you can redistribute it and/or modify it
kevinw@8194:  * under the terms of the GNU General Public License version 2 only, as
kevinw@8194:  * published by the Free Software Foundation.
kevinw@8194:  *
kevinw@8194:  * This code is distributed in the hope that it will be useful, but WITHOUT
kevinw@8194:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
kevinw@8194:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
kevinw@8194:  * version 2 for more details (a copy is included in the LICENSE file that
kevinw@8194:  * accompanied this code).
kevinw@8194:  *
kevinw@8194:  * You should have received a copy of the GNU General Public License version
kevinw@8194:  * 2 along with this work; if not, write to the Free Software Foundation,
kevinw@8194:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
kevinw@8194:  *
kevinw@8194:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
kevinw@8194:  * or visit www.oracle.com if you need additional information or have any
kevinw@8194:  * questions.
kevinw@8194:  */
kevinw@8194: 
kevinw@8194: /*
kevinw@8194:  * @test TestConMarkCycleWB
kevinw@8194:  * @bug 8065579
kevinw@8194:  * @requires vm.gc=="null" | vm.gc=="G1"
kevinw@8194:  * @library /testlibrary /testlibrary/whitebox
kevinw@8194:  * @build ClassFileInstaller com.oracle.java.testlibrary.* sun.hotspot.WhiteBox TestConcMarkCycleWB
kevinw@8194:  * @run main ClassFileInstaller sun.hotspot.WhiteBox
kevinw@8194:  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
kevinw@8194:  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:+UseG1GC TestConcMarkCycleWB
kevinw@8194:  * @summary Verifies that ConcurrentMarking-related WB works properly
kevinw@8194:  */
kevinw@8194: import static com.oracle.java.testlibrary.Asserts.assertFalse;
kevinw@8194: import static com.oracle.java.testlibrary.Asserts.assertTrue;
kevinw@8194: import sun.hotspot.WhiteBox;
kevinw@8194: 
kevinw@8194: public class TestConcMarkCycleWB {
kevinw@8194: 
kevinw@8194:     public static void main(String[] args) throws Exception {
kevinw@8194:         WhiteBox wb = WhiteBox.getWhiteBox();
kevinw@8194: 
kevinw@8194:         wb.youngGC();
kevinw@8194:         assertTrue(wb.g1StartConcMarkCycle());
kevinw@8194:         while (wb.g1InConcurrentMark()) {
kevinw@8194:             Thread.sleep(5);
kevinw@8194:         }
kevinw@8194: 
kevinw@8194:         wb.fullGC();
kevinw@8194:         assertTrue(wb.g1StartConcMarkCycle());
kevinw@8194:         while (wb.g1InConcurrentMark()) {
kevinw@8194:             Thread.sleep(5);
kevinw@8194:         }
kevinw@8194:         assertTrue(wb.g1StartConcMarkCycle());
kevinw@8194:     }
kevinw@8194: }