/usr/include/thunderbird-11.0.1/nsLayoutStatics.h is in thunderbird-dev 11.0.1+build1-0ubuntu2.
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* 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 the Mozilla platform.
*
* The Initial Developer of the Original Code is
* Benjamin Smedberg <benjamin@smedbergs.us>.
*
* Portions created by the Initial Developer are Copyright (C) 2006
* the Mozilla Foundation <http://www.mozilla.org/>. 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 ***** */
#ifndef nsLayoutStatics_h__
#define nsLayoutStatics_h__
#include "nscore.h"
#include "nsThreadUtils.h"
// This isn't really a class, it's a namespace for static methods.
// Documents and other objects can hold a reference to the layout static
// objects so that they last past the xpcom-shutdown notification.
class nsLayoutStatics
{
public:
// Called by the layout module constructor. This call performs an AddRef()
// internally.
static nsresult Initialize();
static void AddRef()
{
NS_ASSERTION(NS_IsMainThread(),
"nsLayoutStatics reference counting must be on main thread");
NS_ASSERTION(sLayoutStaticRefcnt,
"nsLayoutStatics already dropped to zero!");
++sLayoutStaticRefcnt;
NS_LOG_ADDREF(&sLayoutStaticRefcnt, sLayoutStaticRefcnt,
"nsLayoutStatics", 1);
}
static void Release()
{
NS_ASSERTION(NS_IsMainThread(),
"nsLayoutStatics reference counting must be on main thread");
--sLayoutStaticRefcnt;
NS_LOG_RELEASE(&sLayoutStaticRefcnt, sLayoutStaticRefcnt,
"nsLayoutStatics");
if (!sLayoutStaticRefcnt)
Shutdown();
}
private:
// not to be called!
nsLayoutStatics();
static void Shutdown();
static nsrefcnt sLayoutStaticRefcnt;
};
class nsLayoutStaticsRef
{
public:
nsLayoutStaticsRef()
{
nsLayoutStatics::AddRef();
}
~nsLayoutStaticsRef()
{
nsLayoutStatics::Release();
}
};
#endif // nsLayoutStatics_h__
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