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 -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 public static void main(String[] args) throws Exception { 46 // This case waits for 10 seconds and verifies that the method hasn't been 47 // compiled during that time. Only do that for one of the test cases. 48 CompilerWhiteBoxTest.main(LockCompilationTest::new, new String[] {"METHOD_TEST"}); 49 } 50 51 private LockCompilationTest(TestCase testCase) { 52 super(testCase); 53 // to prevent inlining of #method 54 WHITE_BOX.testSetDontInlineMethod(method, true); 55 } 56 57 protected void test() throws Exception { 58 checkNotCompiled(); 59 60 System.out.println("locking compilation"); 61 WHITE_BOX.lockCompilation(); 62 63 try { 64 System.out.println("trying to compile"); 65 compile(); 66 // to check if it works correctly w/ safepoints 67 System.out.println("going to safepoint"); 68 WHITE_BOX.fullGC(); 69 waitBackgroundCompilation(); 70 Asserts.assertTrue( 71 WHITE_BOX.isMethodQueuedForCompilation(method), 72 method + " must be in queue"); 73 Asserts.assertFalse( 74 WHITE_BOX.isMethodCompiled(method, false), 75 method + " must be not compiled"); 76 Asserts.assertEQ( 77 WHITE_BOX.getMethodCompilationLevel(method, false), 0, 78 method + " comp_level must be == 0"); 79 Asserts.assertFalse( 80 WHITE_BOX.isMethodCompiled(method, true), 81 method + " must be not osr_compiled"); 82 Asserts.assertEQ( 83 WHITE_BOX.getMethodCompilationLevel(method, true), 0, 84 method + " osr_comp_level must be == 0"); 85 } finally { 86 System.out.println("unlocking compilation"); 87 WHITE_BOX.unlockCompilation(); 88 } 89 waitBackgroundCompilation(); 90 Asserts.assertFalse( 91 WHITE_BOX.isMethodQueuedForCompilation(method), 92 method + " must not be in queue"); 93 } 94 } 95