gecko/js/src/jstask.h

85 lines
2.5 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=4 sw=4 et tw=99 ft=cpp:
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* 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.
*
* The Original Code is Mozilla SpiderMonkey JavaScript 1.9 code, released
* June 30, 2009.
*
* The Initial Developer of the Original Code is
* Andreas Gal <gal@mozilla.com>
*
* Contributor(s):
*
* 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 MPL, 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 MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef jstask_h___
#define jstask_h___
class JSBackgroundTask {
friend class JSBackgroundThread;
JSBackgroundTask* next;
public:
virtual void run() = 0;
};
#ifdef JS_THREADSAFE
#include "prthread.h"
#include "prlock.h"
#include "prcvar.h"
class JSBackgroundThread {
PRThread* thread;
JSBackgroundTask* stack;
PRLock* lock;
PRCondVar* wakeup;
bool shutdown;
public:
JSBackgroundThread();
~JSBackgroundThread();
bool init();
void cancel();
void work();
bool busy();
void schedule(JSBackgroundTask* task);
};
#else
class JSBackgroundThread {
public:
void schedule(JSBackgroundTask* task) {
task->run();
}
};
#endif
#endif /* jstask_h___ */