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/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
*/
package com.sun.star.lib.uno.environments.remote;
/**
* This class implements a java thread pool.
*
* @see com.sun.star.uno.UnoRuntime
* @see com.sun.star.lib.uno.environments.remote.NativeThreadPool
* @see com.sun.star.lib.uno.environments.remote.IThreadPool
* @see com.sun.star.lib.uno.environments.remote.Job
* @see com.sun.star.lib.uno.environments.remote.JobQueue
* @since UDK1.0
*/
public class JavaThreadPool implements IThreadPool {
/**
* When set to true, enables various debugging output.
*/
private static final boolean DEBUG = false;
JavaThreadPoolFactory _javaThreadPoolFactory;
JavaThreadPool(JavaThreadPoolFactory javaThreadPoolFactory) {
_javaThreadPoolFactory = javaThreadPoolFactory;
}
public ThreadId getThreadId() {
return JavaThreadPoolFactory.getThreadId();
}
public Object attach( ThreadId threadId )
{
if(DEBUG) System.err.println("##### " + getClass().getName() + ".attach - id:" + threadId);
JobQueue jobQueue = _javaThreadPoolFactory.getJobQueue(threadId);
if(jobQueue == null)
jobQueue = new JobQueue(_javaThreadPoolFactory, threadId, false);
// acquiring the jobQueue registers it at the ThreadPoolFactory
jobQueue.acquire();
return jobQueue;
}
public void attach() {
attach( getThreadId() );
}
public void detach( Object handle, ThreadId id )
{
((JobQueue)handle).release();
}
public void detach() {
ThreadId threadId = getThreadId();
detach(_javaThreadPoolFactory.getJobQueue(threadId), threadId );
}
public Object enter( ) throws Throwable {
ThreadId threadId = getThreadId();
return enter( _javaThreadPoolFactory.getJobQueue( threadId ), threadId );
}
public Object enter( Object handle, ThreadId threadId ) throws Throwable {
return ((JobQueue)handle).enter(this);
}
public void putJob(Job job) {
if (!job.isRequest() || job.isSynchronous()) {
JobQueue jobQueue = _javaThreadPoolFactory.getJobQueue(job.getThreadId());
// this has not be synchronized, cause
// sync jobs can only come over one bridge
// (cause the thread blocks on other side)
if(jobQueue == null)
jobQueue = new JobQueue(_javaThreadPoolFactory, job.getThreadId(), true);
// put job acquires the queue and registers it at the ThreadPoolFactory
jobQueue.putJob(job, this);
}
else {
// this has to be synchronized, cause
// async jobs of the same thread can come
// over different bridges
synchronized(_javaThreadPoolFactory) {
JobQueue async_jobQueue = _javaThreadPoolFactory.getAsyncJobQueue(job.getThreadId());
// ensure there is jobQueue
if(async_jobQueue == null) // so, there is really no async queue
async_jobQueue = new JobQueue(_javaThreadPoolFactory, job.getThreadId());
// put job acquires the queue and registers it at the ThreadPoolFactory
async_jobQueue.putJob(job, this);
}
}
}
public void dispose(Throwable throwable) {
if(DEBUG) System.err.println("##### " + getClass().getName() + ".dispose:" + throwable);
_javaThreadPoolFactory.dispose(this, throwable);
}
public void destroy() {
}
}
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