Mercurial > hg > jdk9-shenandoah > langtools
view src/jdk.compiler/share/classes/com/sun/tools/sjavac/comp/PooledSjavac.java @ 3022:5ba1a29a0eb0
8129114: Sjavac should stream back compiler output to the client as soon as it becomes available
Summary: Protocol revised, javac output sent back to client slightly earlier.
Reviewed-by: jlahoda
author | alundblad |
---|---|
date | Fri, 04 Sep 2015 13:24:15 +0200 |
parents | adba44f6b471 |
children |
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/* * Copyright (c) 2014, 2015, 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. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * 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 com.sun.tools.sjavac.comp; import java.io.Writer; import java.util.Objects; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; import java.util.concurrent.TimeUnit; import com.sun.tools.sjavac.Log; import com.sun.tools.sjavac.server.Sjavac; /** * An sjavac implementation that limits the number of concurrent calls by * wrapping invocations in Callables and delegating them to a FixedThreadPool. * * <p><b>This is NOT part of any supported API. * If you write code that depends on this, you do so at your own risk. * This code and its internal interfaces are subject to change or * deletion without notice.</b> */ public class PooledSjavac implements Sjavac { final Sjavac delegate; final ExecutorService pool; public PooledSjavac(Sjavac delegate, int poolsize) { Objects.requireNonNull(delegate); this.delegate = delegate; pool = Executors.newFixedThreadPool(poolsize); } @Override public int compile(String[] args, Writer out, Writer err) { try { return pool.submit(() -> { return delegate.compile(args, out, err); }).get(); } catch (Exception e) { e.printStackTrace(); throw new RuntimeException("Error during compile", e); } } @Override public void shutdown() { Log.debug("Shutting down PooledSjavac"); pool.shutdown(); // Disable new tasks from being submitted try { // Wait a while for existing tasks to terminate if (!pool.awaitTermination(60, TimeUnit.SECONDS)) { pool.shutdownNow(); // Cancel currently executing tasks // Wait a while for tasks to respond to being cancelled if (!pool.awaitTermination(60, TimeUnit.SECONDS)) Log.error("ThreadPool did not terminate"); } } catch (InterruptedException ie) { // (Re-)Cancel if current thread also interrupted pool.shutdownNow(); // Preserve interrupt status Thread.currentThread().interrupt(); } delegate.shutdown(); } }