jruby/src/org/jruby/RubyThreadGroup.java at serializable_procs · MSNexploder/jruby · GitHub

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/***** BEGIN LICENSE BLOCK *****

* Version: CPL 1.0/GPL 2.0/LGPL 2.1

* The contents of this file are subject to the Common Public

* License Version 1.0 (the "License"); you may not use this file

* except in compliance with the License. You may obtain a copy of

* the License at http://www.eclipse.org/legal/cpl-v10.html

* Software distributed under the License is distributed on an "AS

* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or

* implied. See the License for the specific language governing

* rights and limitations under the License.

* Alternatively, the contents of this file may be used under the terms of

* either of the GNU General Public License Version 2 or later (the "GPL"),

* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),

* in which case the provisions of the GPL or the LGPL are applicable instead

* of those above. If you wish to allow use of your version of this file only

* under the terms of either the GPL or the LGPL, and not to allow others to

* use your version of this file under the terms of the CPL, indicate your

* decision by deleting the provisions above and replace them with the notice

* and other provisions required by the GPL or the LGPL. If you do not delete

* the provisions above, a recipient may use your version of this file under

* the terms of any one of the CPL, the GPL or the LGPL.

***** END LICENSE BLOCK *****/

package org.jruby;

import java.util.Collections;

import java.util.Set;

import org.jruby.anno.JRubyMethod;

import org.jruby.anno.JRubyClass;

import org.jruby.runtime.Block;

import org.jruby.runtime.ClassIndex;

import org.jruby.runtime.ObjectAllocator;

import org.jruby.runtime.builtin.IRubyObject;

import org.jruby.util.collections.WeakHashSet;

/**

* Implementation of Ruby's <code>ThreadGroup</code> class. This is currently

* just a stub.

* <p>

* @author Charles O Nutter (headius@headius.com)

@JRubyClass(name="ThreadGroup")

public class RubyThreadGroup extends RubyObject {

private final Set<RubyThread> rubyThreadList = Collections.synchronizedSet(new WeakHashSet<RubyThread>());

private boolean enclosed = false;

// ENEBO: Can these be fast?

public static RubyClass createThreadGroupClass(Ruby runtime) {

RubyClass threadGroupClass = runtime.defineClass("ThreadGroup", runtime.getObject(), ObjectAllocator.NOT_ALLOCATABLE_ALLOCATOR);

runtime.setThreadGroup(threadGroupClass);

threadGroupClass.index = ClassIndex.THREADGROUP;

threadGroupClass.defineAnnotatedMethods(RubyThreadGroup.class);

// create the default thread group

RubyThreadGroup defaultThreadGroup = new RubyThreadGroup(runtime, threadGroupClass);

runtime.setDefaultThreadGroup(defaultThreadGroup);

threadGroupClass.defineConstant("Default", defaultThreadGroup);

return threadGroupClass;

}

@JRubyMethod(name = "new", frame = true, meta = true)

public static IRubyObject newInstance(IRubyObject recv, Block block) {

return new RubyThreadGroup(recv.getRuntime(), (RubyClass)recv);

}

@JRubyMethod(name = "add", required = 1, frame = true)

public IRubyObject add(IRubyObject rubyThread, Block block) {

if (!(rubyThread instanceof RubyThread)) throw getRuntime().newTypeError(rubyThread, getRuntime().getThread());

// synchronize on the RubyThread for threadgroup updates

if (isFrozen()) {

throw getRuntime().newTypeError("can't add to frozen ThreadGroup");

}

RubyThread thread = (RubyThread)rubyThread;

// we only add live threads

if (thread.alive_p().isTrue()) {

addDirectly(thread);

}

return this;

}

void addDirectly(RubyThread rubyThread) {

synchronized (rubyThread) {

IRubyObject oldGroup = rubyThread.group();

if (!oldGroup.isNil()) {

RubyThreadGroup threadGroup = (RubyThreadGroup) oldGroup;

threadGroup.rubyThreadList.remove(rubyThread);

}

rubyThread.setThreadGroup(this);

rubyThreadList.add(rubyThread);

}

public void remove(RubyThread rubyThread) {

synchronized (rubyThread) {

rubyThread.setThreadGroup(null);

rubyThreadList.remove(rubyThread);

}

@JRubyMethod(name = "enclose", frame = true)

public IRubyObject enclose(Block block) {

enclosed = true;

return this;

}

@JRubyMethod(name = "enclosed?", frame = true)

public IRubyObject enclosed_p(Block block) {

return getRuntime().newBoolean(enclosed);

}

@JRubyMethod(name = "list", frame = true)

public IRubyObject list(Block block) {

return RubyArray.newArray(getRuntime(), rubyThreadList);

}

private RubyThreadGroup(Ruby runtime, RubyClass type) {

super(runtime, type);

}

jruby/src/org/jruby/RubyThreadGroup.java at serializable_procs · MSNexploder/jruby · GitHub

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