1 /*

     2  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 /*

    25  * @test LockCompilationTest

    26  * @bug 8059624

    27  * @library /testlibrary /testlibrary/whitebox

    28  * @build LockCompilationTest

    29  * @run main ClassFileInstaller sun.hotspot.WhiteBox

    30  *                              sun.hotspot.WhiteBox$WhiteBoxPermission

    31  * @run main/othervm/timeout=600 -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,SimpleTestCase$Helper::* LockCompilationTest

    32  * @summary testing of WB::lock/unlockCompilation()

    33  */

    34 

    35 import java.io.OutputStream;

    36 import java.io.PrintWriter;

    37 import java.util.concurrent.BrokenBarrierException;

    38 import java.util.concurrent.CyclicBarrier;

    39 

    40 import com.oracle.java.testlibrary.Asserts;

    41 

    42 public class LockCompilationTest extends CompilerWhiteBoxTest {

    43     public static void main(String[] args) throws Exception {

    44         CompilerWhiteBoxTest.main(LockCompilationTest::new, args);

    45     }

    46 

    47     private LockCompilationTest(TestCase testCase) {

    48         super(testCase);

    49         // to prevent inlining of #method

    50         WHITE_BOX.testSetDontInlineMethod(method, true);

    51     }

    52 

    53     protected void test() throws Exception {

    54         checkNotCompiled();

    55 

    56         System.out.println("locking compilation");

    57         WHITE_BOX.lockCompilation();

    58 

    59         try {

    60             System.out.println("trying to compile");

    61             compile();

    62             // to check if it works correctly w/ safepoints

    63             System.out.println("going to safepoint");

    64             WHITE_BOX.fullGC();

    65             waitBackgroundCompilation();

    66             Asserts.assertTrue(

    67                     WHITE_BOX.isMethodQueuedForCompilation(method),

    68                     method + " must be in queue");

    69             Asserts.assertFalse(

    70                     WHITE_BOX.isMethodCompiled(method, false),

    71                     method + " must be not compiled");

    72             Asserts.assertEQ(

    73                     WHITE_BOX.getMethodCompilationLevel(method, false), 0,

    74                     method + " comp_level must be == 0");

    75             Asserts.assertFalse(

    76                     WHITE_BOX.isMethodCompiled(method, true),

    77                     method + " must be not osr_compiled");

    78             Asserts.assertEQ(

    79                     WHITE_BOX.getMethodCompilationLevel(method, true), 0,

    80                     method + " osr_comp_level must be == 0");

    81         } finally {

    82             System.out.println("unlocking compilation");

    83             WHITE_BOX.unlockCompilation();

    84         }

    85         waitBackgroundCompilation();

    86         Asserts.assertFalse(

    87                 WHITE_BOX.isMethodQueuedForCompilation(method),

    88                 method + " must not be in queue");

    89     }

    90 }

    91