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 /../../test/lib
  28  * @build LockCompilationTest
  29  * @run main ClassFileInstaller jdk.testlib.WhiteBox
  30  *                              jdk.testlib.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