Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.ruby.runtime/src/com/oracle/truffle/ruby/runtime/core/RubyThread.java @ 13514:0fbee3eb71f0
Ruby: import project.
author | Chris Seaton <chris.seaton@oracle.com> |
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date | Mon, 06 Jan 2014 17:12:09 +0000 |
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/* * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This * code is released under a tri EPL/GPL/LGPL license. You can use it, * redistribute it and/or modify it under the terms of the: * * Eclipse Public License version 1.0 * GNU General Public License version 2 * GNU Lesser General Public License version 2.1 */ package com.oracle.truffle.ruby.runtime.core; import java.util.*; import java.util.concurrent.*; import com.oracle.truffle.ruby.runtime.objects.*; import com.oracle.truffle.ruby.runtime.subsystems.*; /** * Represents the Ruby {@code Thread} class. Implemented using Java threads, but note that there is * not a one-to-one mapping between Ruby threads and Java threads - specifically in combination with * fibers as they are currently implemented as their own Java threads. */ public class RubyThread extends RubyObject { /** * The class from which we create the object that is {@code Thread}. A subclass of * {@link RubyClass} so that we can override {@link #newInstance} and allocate a * {@link RubyThread} rather than a normal {@link RubyBasicObject}. */ public static class RubyThreadClass extends RubyClass { public RubyThreadClass(RubyClass objectClass) { super(null, objectClass, "Thread"); } @Override public RubyBasicObject newInstance() { return new RubyThread(this, getContext().getThreadManager()); } } private final ThreadManager manager; private final CountDownLatch finished = new CountDownLatch(1); private final int hashCode = new Random().nextInt(); public RubyThread(RubyClass rubyClass, ThreadManager manager) { super(rubyClass); this.manager = manager; } public void initialize(RubyProc block) { final RubyProc finalBlock = block; initialize(new Runnable() { @Override public void run() { finalBlock.call(null); } }); } public void initialize(Runnable runnable) { final RubyThread finalThread = this; final Runnable finalRunnable = runnable; new Thread(new Runnable() { @Override public void run() { finalThread.manager.registerThread(finalThread); finalThread.manager.enterGlobalLock(finalThread); try { finalRunnable.run(); } finally { finalThread.manager.leaveGlobalLock(); finalThread.manager.unregisterThread(finalThread); finalThread.finished.countDown(); } } }).start(); } @Override public int hashCode() { return hashCode; } public void shutdown() { } public void join() { final RubyThread runningThread = getRubyClass().getContext().getThreadManager().leaveGlobalLock(); try { while (true) { try { finished.await(); break; } catch (InterruptedException e) { // Await again } } } finally { runningThread.manager.enterGlobalLock(runningThread); } } }