| /* |
| * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import sun.hotspot.WhiteBox; |
| import sun.management.ManagementFactoryHelper; |
| import com.sun.management.HotSpotDiagnosticMXBean; |
| |
| import java.lang.reflect.Method; |
| |
| /* |
| * @author igor.ignatyev@oracle.com |
| */ |
| public abstract class CompilerWhiteBoxTest { |
| protected static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox(); |
| protected static final Method METHOD = getMethod("method"); |
| protected static final int COMPILE_THRESHOLD |
| = Integer.parseInt(getVMOption("CompileThreshold", "10000")); |
| protected static final boolean BACKGROUND_COMPILATION |
| = Boolean.valueOf(getVMOption("BackgroundCompilation", "true")); |
| |
| protected static Method getMethod(String name) { |
| try { |
| return CompilerWhiteBoxTest.class.getDeclaredMethod(name); |
| } catch (NoSuchMethodException | SecurityException e) { |
| throw new RuntimeException( |
| "exception on getting method " + name, e); |
| } |
| } |
| |
| protected static String getVMOption(String name) { |
| String result; |
| HotSpotDiagnosticMXBean diagnostic |
| = ManagementFactoryHelper.getDiagnosticMXBean(); |
| result = diagnostic.getVMOption(name).getValue(); |
| return result; |
| } |
| |
| protected static String getVMOption(String name, String defaultValue) { |
| String result = getVMOption(name); |
| return result == null ? defaultValue : result; |
| } |
| |
| protected final void runTest() throws RuntimeException { |
| if (ManagementFactoryHelper.getCompilationMXBean() == null) { |
| System.err.println( |
| "Warning: test is not applicable in interpreted mode"); |
| return; |
| } |
| System.out.println("at test's start:"); |
| printInfo(METHOD); |
| try { |
| test(); |
| } catch (Exception e) { |
| System.out.printf("on exception '%s':", e.getMessage()); |
| printInfo(METHOD); |
| e.printStackTrace(); |
| throw new RuntimeException(e); |
| } |
| System.out.println("at test's end:"); |
| printInfo(METHOD); |
| } |
| |
| protected static void checkNotCompiled(Method method) { |
| if (WHITE_BOX.isMethodCompiled(method)) { |
| throw new RuntimeException(method + " must be not compiled"); |
| } |
| if (WHITE_BOX.getMethodCompilationLevel(method) != 0) { |
| throw new RuntimeException(method + " comp_level must be == 0"); |
| } |
| } |
| |
| protected static void checkCompiled(Method method) |
| throws InterruptedException { |
| final long start = System.currentTimeMillis(); |
| waitBackgroundCompilation(method); |
| if (WHITE_BOX.isMethodQueuedForCompilation(method)) { |
| System.err.printf("Warning: %s is still in queue after %dms%n", |
| method, System.currentTimeMillis() - start); |
| return; |
| } |
| if (!WHITE_BOX.isMethodCompiled(method)) { |
| throw new RuntimeException(method + " must be compiled"); |
| } |
| if (WHITE_BOX.getMethodCompilationLevel(method) == 0) { |
| throw new RuntimeException(method + " comp_level must be != 0"); |
| } |
| } |
| |
| protected static void waitBackgroundCompilation(Method method) |
| throws InterruptedException { |
| if (!BACKGROUND_COMPILATION) { |
| return; |
| } |
| final Object obj = new Object(); |
| synchronized (obj) { |
| for (int i = 0; i < 10; ++i) { |
| if (!WHITE_BOX.isMethodQueuedForCompilation(method)) { |
| break; |
| } |
| obj.wait(1000); |
| } |
| } |
| } |
| |
| protected static void printInfo(Method method) { |
| System.out.printf("%n%s:%n", method); |
| System.out.printf("\tcompilable:\t%b%n", |
| WHITE_BOX.isMethodCompilable(method)); |
| System.out.printf("\tcompiled:\t%b%n", |
| WHITE_BOX.isMethodCompiled(method)); |
| System.out.printf("\tcomp_level:\t%d%n", |
| WHITE_BOX.getMethodCompilationLevel(method)); |
| System.out.printf("\tin_queue:\t%b%n", |
| WHITE_BOX.isMethodQueuedForCompilation(method)); |
| System.out.printf("compile_queues_size:\t%d%n%n", |
| WHITE_BOX.getCompileQueuesSize()); |
| } |
| |
| protected abstract void test() throws Exception; |
| |
| protected final int compile() { |
| int result = 0; |
| int count = Math.max(COMPILE_THRESHOLD, 150000); |
| for (int i = 0; i < count; ++i) { |
| result += method(); |
| } |
| System.out.println("method was invoked " + count + " times"); |
| return result; |
| } |
| |
| protected int method() { |
| return 42; |
| } |
| } |