| /* |
| * 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. |
| */ |
| |
| package sun.hotspot.tools.ctw; |
| |
| import sun.management.ManagementFactoryHelper; |
| |
| import java.io.*; |
| import java.nio.file.Files; |
| import java.nio.file.Paths; |
| |
| import java.util.List; |
| import java.util.concurrent.*; |
| |
| public class CompileTheWorld { |
| /** |
| * Entry point. Compiles classes in {@code args}, or all classes in |
| * boot-classpath if args is empty |
| * |
| * @param args paths to jar/zip, dir contains classes, or to .lst file |
| * contains list of classes to compile |
| */ |
| public static void main(String[] args) { |
| String logfile = Utils.LOG_FILE; |
| PrintStream os = null; |
| if (logfile != null) { |
| try { |
| os = new PrintStream(Files.newOutputStream(Paths.get(logfile))); |
| } catch (IOException io) { |
| } |
| } |
| if (os != null) { |
| System.setOut(os); |
| } |
| |
| try { |
| try { |
| if (ManagementFactoryHelper.getCompilationMXBean() == null) { |
| throw new RuntimeException( |
| "CTW can not work in interpreted mode"); |
| } |
| } catch (java.lang.NoClassDefFoundError e) { |
| // compact1, compact2 support |
| } |
| String[] paths = args; |
| boolean skipRtJar = false; |
| if (args.length == 0) { |
| paths = getDefaultPaths(); |
| skipRtJar = true; |
| } |
| ExecutorService executor = createExecutor(); |
| long start = System.currentTimeMillis(); |
| try { |
| String path; |
| for (int i = 0, n = paths.length; i < n |
| && !PathHandler.isFinished(); ++i) { |
| path = paths[i]; |
| if (skipRtJar && i > 0 && isRtJar(path)) { |
| // rt.jar is not first, so skip it |
| continue; |
| } |
| PathHandler.create(path, executor).process(); |
| } |
| } finally { |
| await(executor); |
| } |
| System.out.printf("Done (%d classes, %d methods, %d ms)%n", |
| Compiler.getClassCount(), |
| Compiler.getMethodCount(), |
| System.currentTimeMillis() - start); |
| } finally { |
| if (os != null) { |
| os.close(); |
| } |
| } |
| } |
| |
| private static ExecutorService createExecutor() { |
| final int threadsCount = Math.min( |
| Runtime.getRuntime().availableProcessors(), |
| Utils.CI_COMPILER_COUNT); |
| ExecutorService result; |
| if (threadsCount > 1) { |
| result = new ThreadPoolExecutor(threadsCount, threadsCount, |
| /* keepAliveTime */ 0L, TimeUnit.MILLISECONDS, |
| new ArrayBlockingQueue<>(threadsCount), |
| new ThreadPoolExecutor.CallerRunsPolicy()); |
| } else { |
| result = new CurrentThreadExecutor(); |
| } |
| return result; |
| } |
| |
| private static String[] getDefaultPaths() { |
| String property = System.getProperty("sun.boot.class.path"); |
| System.out.println( |
| "# use 'sun.boot.class.path' as args: " + property); |
| return Utils.PATH_SEPARATOR.split(property); |
| } |
| |
| private static void await(ExecutorService executor) { |
| executor.shutdown(); |
| while (!executor.isTerminated()) { |
| try { |
| executor.awaitTermination(Long.MAX_VALUE, TimeUnit.NANOSECONDS); |
| } catch (InterruptedException ie) { |
| Thread.currentThread().interrupt(); |
| break; |
| } |
| } |
| } |
| |
| private static boolean isRtJar(String path) { |
| return Utils.endsWithIgnoreCase(path, File.separator + "rt.jar"); |
| } |
| |
| private static class CurrentThreadExecutor extends AbstractExecutorService { |
| private boolean isShutdown; |
| |
| @Override |
| public void shutdown() { |
| this.isShutdown = true; |
| } |
| |
| @Override |
| public List<Runnable> shutdownNow() { |
| return null; |
| } |
| |
| @Override |
| public boolean isShutdown() { |
| return isShutdown; |
| } |
| |
| @Override |
| public boolean isTerminated() { |
| return isShutdown; |
| } |
| |
| @Override |
| public boolean awaitTermination(long timeout, TimeUnit unit) |
| throws InterruptedException { |
| return isShutdown; |
| } |
| |
| @Override |
| public void execute(Runnable command) { |
| command.run(); |
| } |
| } |
| } |
| |