1 /*
   2  * Copyright (c) 2014, 2015, 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 /../../test/lib /
  28  * @modules java.management
  29  * @build LockCompilationTest
  30  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  31  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  32  * @run main/othervm/timeout=600 -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,compiler.whitebox.SimpleTestCase$Helper::* LockCompilationTest
  33  * @summary testing of WB::lock/unlockCompilation()
  34  */
  35 
  36 import java.io.OutputStream;
  37 import java.io.PrintWriter;
  38 import java.util.concurrent.BrokenBarrierException;
  39 import java.util.concurrent.CyclicBarrier;
  40 import compiler.whitebox.CompilerWhiteBoxTest;
  41 import jdk.test.lib.Asserts;
  42 
  43 public class LockCompilationTest extends CompilerWhiteBoxTest {
  44     public static void main(String[] args) throws Exception {
  45         CompilerWhiteBoxTest.main(LockCompilationTest::new, args);
  46     }
  47 
  48     private LockCompilationTest(TestCase testCase) {
  49         super(testCase);
  50         // to prevent inlining of #method
  51         WHITE_BOX.testSetDontInlineMethod(method, true);
  52     }
  53 
  54     protected void test() throws Exception {
  55         checkNotCompiled();
  56 
  57         System.out.println("locking compilation");
  58         WHITE_BOX.lockCompilation();
  59 
  60         try {
  61             System.out.println("trying to compile");
  62             compile();
  63             // to check if it works correctly w/ safepoints
  64             System.out.println("going to safepoint");
  65             WHITE_BOX.fullGC();
  66             waitBackgroundCompilation();
  67             Asserts.assertTrue(
  68                     WHITE_BOX.isMethodQueuedForCompilation(method),
  69                     method + " must be in queue");
  70             Asserts.assertFalse(
  71                     WHITE_BOX.isMethodCompiled(method, false),
  72                     method + " must be not compiled");
  73             Asserts.assertEQ(
  74                     WHITE_BOX.getMethodCompilationLevel(method, false), 0,
  75                     method + " comp_level must be == 0");
  76             Asserts.assertFalse(
  77                     WHITE_BOX.isMethodCompiled(method, true),
  78                     method + " must be not osr_compiled");
  79             Asserts.assertEQ(
  80                     WHITE_BOX.getMethodCompilationLevel(method, true), 0,
  81                     method + " osr_comp_level must be == 0");
  82         } finally {
  83             System.out.println("unlocking compilation");
  84             WHITE_BOX.unlockCompilation();
  85         }
  86         waitBackgroundCompilation();
  87         Asserts.assertFalse(
  88                 WHITE_BOX.isMethodQueuedForCompilation(method),
  89                 method + " must not be in queue");
  90     }
  91 }
  92