1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   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
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  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.
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  23 
  24 /*
  25  * @test LockCompilationTest
  26  * @bug 8059624 8152169
  27  * @summary testing of WB::lock/unlockCompilation()
  28  * @library /testlibrary /test/lib /
  29  * @modules java.base/jdk.internal.misc
  30  *          java.management
  31  * @build compiler.whitebox.LockCompilationTest
  32  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  33  *                                sun.hotspot.WhiteBox$WhiteBoxPermission
  34  * @run main/othervm -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions
  35  *                   -XX:+WhiteBoxAPI -XX:-UseCounterDecay
  36  *                   compiler.whitebox.LockCompilationTest
  37  */
  38 
  39 package compiler.whitebox;
  40 
  41 import jdk.test.lib.Asserts;
  42 
  43 public class LockCompilationTest extends CompilerWhiteBoxTest {
  44 
  45     public static void main(String[] args) throws Exception {
  46         // This case waits for 5 seconds and verifies that the method hasn't been
  47         // compiled during that time. Only do that for one of the test cases.
  48 
  49         // Only compile SimpleTestCaseHelper.method and exclude all other to ensure no
  50         // contention on the compile queue causes problems.
  51         String directive =
  52                 "[{ match:\"*SimpleTestCaseHelper.method\", Exclude:false}, " +
  53                 " { match:\"*.*\", Exclude:true}]";
  54         if (WHITE_BOX.addCompilerDirective(directive) != 2) {
  55             throw new RuntimeException("Could not add directive");
  56         }
  57         try {
  58             CompilerWhiteBoxTest.main(LockCompilationTest::new, new String[] {"METHOD_TEST"});
  59         } finally {
  60             WHITE_BOX.removeCompilerDirective(2);
  61         }
  62 
  63     }
  64 
  65     private LockCompilationTest(TestCase testCase) {
  66         super(testCase);
  67         // to prevent inlining of #method
  68         WHITE_BOX.testSetDontInlineMethod(method, true);
  69     }
  70 
  71     protected void test() throws Exception {
  72         checkNotCompiled();
  73 
  74         System.out.println("locking compilation");
  75         WHITE_BOX.lockCompilation();
  76 
  77         try {
  78             System.out.println("trying to compile");
  79             compile();
  80             // to check if it works correctly w/ safepoints
  81             System.out.println("going to safepoint");
  82             WHITE_BOX.fullGC();
  83             // Sleep a while and then make sure the compile is still waiting
  84             Thread.sleep(5000);
  85 
  86             Asserts.assertTrue(
  87                     WHITE_BOX.isMethodQueuedForCompilation(method),
  88                     method + " must be in queue");
  89             Asserts.assertFalse(
  90                     WHITE_BOX.isMethodCompiled(method, false),
  91                     method + " must be not compiled");
  92             Asserts.assertEQ(
  93                     WHITE_BOX.getMethodCompilationLevel(method, false), 0,
  94                     method + " comp_level must be == 0");
  95             Asserts.assertFalse(
  96                     WHITE_BOX.isMethodCompiled(method, true),
  97                     method + " must be not osr_compiled");
  98             Asserts.assertEQ(
  99                     WHITE_BOX.getMethodCompilationLevel(method, true), 0,
 100                     method + " osr_comp_level must be == 0");
 101         } finally {
 102             System.out.println("unlocking compilation");
 103             WHITE_BOX.unlockCompilation();
 104         }
 105         waitBackgroundCompilation();
 106         Asserts.assertFalse(
 107                 WHITE_BOX.isMethodQueuedForCompilation(method),
 108                 method + " must not be in queue");
 109     }
 110 }
 111