gecko-dev/xpcom/glue/nsCycleCollectorUtils.cpp

95 строки
2.7 KiB
C++

/* ***** 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 Cycle Collector.
*
* The Initial Developer of the Original Code is
* Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 ***** */
#include "nsCycleCollectorUtils.h"
#include "prthread.h"
#include "nsCOMPtr.h"
#include "nsServiceManagerUtils.h"
#include "nsXPCOMCIDInternal.h"
#include "nsIThreadManager.h"
#if defined(XP_WIN)
#include "windows.h"
#endif
#ifndef MOZILLA_INTERNAL_API
bool
NS_IsCycleCollectorThread()
{
PRBool result = PR_FALSE;
nsCOMPtr<nsIThreadManager> mgr =
do_GetService(NS_THREADMANAGER_CONTRACTID);
if (mgr)
mgr->GetIsCycleCollectorThread(&result);
return bool(result);
}
#elif defined(XP_WIN)
// Defined in nsThreadManager.cpp.
extern DWORD gTLSThreadIDIndex;
bool
NS_IsCycleCollectorThread()
{
return TlsGetValue(gTLSThreadIDIndex) ==
(void*) mozilla::threads::CycleCollector;
}
#elif !defined(NS_TLS)
// Defined in nsCycleCollector.cpp
extern PRThread* gCycleCollectorThread;
bool
NS_IsCycleCollectorThread()
{
return PR_GetCurrentThread() == gCycleCollectorThread;
}
#elif !defined(MOZ_ENABLE_LIBXUL)
bool
NS_IsCycleCollectorThread()
{
return gTLSThreadID == mozilla::threads::CycleCollector;
}
#endif