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 8152169 27 * @library /testlibrary /test/lib / 28 * @modules java.management 29 * @build LockCompilationTest 30 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 31 * sun.hotspot.WhiteBox$WhiteBoxPermission 32 * @run main/othervm -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI LockCompilationTest 33 * @summary testing of WB::lock/unlockCompilation() 34 */ 35 36 import java.io.OutputStream; 37 import java.io.PrintWriter; 38 import java.util.concurrent.BrokenBarrierException; 39 import java.util.concurrent.CyclicBarrier; 40 41 import compiler.whitebox.CompilerWhiteBoxTest; 42 import jdk.test.lib.Asserts; 43 44 public class LockCompilationTest extends CompilerWhiteBoxTest { 45 46 public static void main(String[] args) throws Exception { 47 // This case waits for 5 seconds and verifies that the method hasn't been 48 // compiled during that time. Only do that for one of the test cases. 49 50 // Only compile SimpleTestCase$Helper.method and exclude all other to ensure no 51 // contention on the compile queue causes problems. 52 String directive = 53 "[{ match:\"*SimpleTestCase$Helper.method\", Exclude:false}, " + 54 " { match:\"*.*\", Exclude:true}]"; 55 if (WHITE_BOX.addCompilerDirective(directive) != 2) { 56 throw new RuntimeException("Could not add directive"); 57 } 58 try { 59 CompilerWhiteBoxTest.main(LockCompilationTest::new, new String[] {"METHOD_TEST"}); 60 } finally { 61 WHITE_BOX.removeCompilerDirective(2); 62 } 63 64 } 65 66 private LockCompilationTest(TestCase testCase) { 67 super(testCase); 68 // to prevent inlining of #method 69 WHITE_BOX.testSetDontInlineMethod(method, true); 70 } 71 72 protected void test() throws Exception { 73 checkNotCompiled(); 74 75 System.out.println("locking compilation"); 76 WHITE_BOX.lockCompilation(); 77 78 try { 79 System.out.println("trying to compile"); 80 compile(); 81 // to check if it works correctly w/ safepoints 82 System.out.println("going to safepoint"); 83 WHITE_BOX.fullGC(); 84 // Sleep a while and then make sure the compile is still waiting 85 try { 86 Thread.sleep(5000); 87 } catch (Exception e) { 88 throw new RuntimeException("Sleep should not be interrupted"); 89 } 90 Asserts.assertTrue( 91 WHITE_BOX.isMethodQueuedForCompilation(method), 92 method + " must be in queue"); 93 Asserts.assertFalse( 94 WHITE_BOX.isMethodCompiled(method, false), 95 method + " must be not compiled"); 96 Asserts.assertEQ( 97 WHITE_BOX.getMethodCompilationLevel(method, false), 0, 98 method + " comp_level must be == 0"); 99 Asserts.assertFalse( 100 WHITE_BOX.isMethodCompiled(method, true), 101 method + " must be not osr_compiled"); 102 Asserts.assertEQ( 103 WHITE_BOX.getMethodCompilationLevel(method, true), 0, 104 method + " osr_comp_level must be == 0"); 105 } finally { 106 System.out.println("unlocking compilation"); 107 WHITE_BOX.unlockCompilation(); 108 } 109 waitBackgroundCompilation(); 110 Asserts.assertFalse( 111 WHITE_BOX.isMethodQueuedForCompilation(method), 112 method + " must not be in queue"); 113 } 114 } 115