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107 lines
4.2 KiB
Plaintext
107 lines
4.2 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla code.
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*
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* The Initial Developer of the Original Code is Google Inc.
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* Portions created by the Initial Developer are Copyright (C) 2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Darin Fisher <darin@meer.net>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIEventTarget.idl"
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[scriptable, uuid(ef194cab-3f86-4b61-b132-e5e96a79e5d1)]
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interface nsIThreadPoolListener : nsISupports
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{
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/**
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* Called when a new thread is created by the thread pool. The notification
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* happens on the newly-created thread.
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*/
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void onThreadCreated();
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/**
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* Called when a thread is about to be destroyed by the thread pool. The
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* notification happens on the thread that is about to be destroyed.
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*/
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void onThreadShuttingDown();
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};
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/**
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* An interface to a thread pool. A thread pool creates a limited number of
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* anonymous (unnamed) worker threads. An event dispatched to the thread pool
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* will be run on the next available worker thread.
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*/
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[scriptable, uuid(d628159b-1a03-4985-aa77-43122eb23bfc)]
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interface nsIThreadPool : nsIEventTarget
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{
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/**
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* Shutdown the thread pool. This method may not be executed from any thread
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* in the thread pool. Instead, it is meant to be executed from another
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* thread (usually the thread that created this thread pool). When this
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* function returns, the thread pool and all of its threads will be shutdown,
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* and it will no longer be possible to dispatch tasks to the thread pool.
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*/
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void shutdown();
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/**
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* Get/set the maximum number of threads allowed at one time in this pool.
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*/
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attribute unsigned long threadLimit;
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/**
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* Get/set the maximum number of idle threads kept alive.
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*/
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attribute unsigned long idleThreadLimit;
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/**
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* Get/set the amount of time in milliseconds before an idle thread is
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* destroyed.
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*/
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attribute unsigned long idleThreadTimeout;
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/**
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* An optional listener that will be notified when a thread is created or
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* destroyed in the course of the thread pool's operation.
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*
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* A listener will only receive notifications about threads created after the
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* listener is set so it is recommended that the consumer set the listener
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* before dispatching the first event. A listener that receives an
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* onThreadCreated() notification is guaranteed to always receive the
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* corresponding onThreadShuttingDown() notification.
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*
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* The thread pool takes ownership of the listener and releases it when the
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* shutdown() method is called. Threads created after the listener is set will
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* also take ownership of the listener so that the listener will be kept alive
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* long enough to receive the guaranteed onThreadShuttingDown() notification.
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*/
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attribute nsIThreadPoolListener listener;
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};
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