mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
f1fb6dbc73
I tested manually that after:
(a) removing the |ruleData.mValueOffsets[aSID] = 0;| in
nsRuleNode::WalkRuleTree
(b) removing the NS_ABORT_IF_FALSE(aRuleData->mValueOffsets[aSID] == 0,
...) from nsRuleNode::CheckSpecifiedProperties and
UnsetPropertiesWithoutFlags
that we crash dereferencing the poison address in a SetCoord call inside
nsRuleNode::ComputeTextResetData
94 lines
3.3 KiB
C++
94 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* vim: set ts=2 sw=2 et tw=78:
|
|
* ***** 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.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Steve Clark <buster@netscape.com>
|
|
* Håkan Waara <hwaara@chello.se>
|
|
* Dan Rosen <dr@netscape.com>
|
|
* Daniel Glazman <glazman@netscape.com>
|
|
* Mats Palmgren <mats.palmgren@bredband.net>
|
|
*
|
|
* 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 nsPresArena_h___
|
|
#define nsPresArena_h___
|
|
|
|
#include "nscore.h"
|
|
#include "nsQueryFrame.h"
|
|
|
|
// Uncomment this to disable arenas, instead forwarding to
|
|
// malloc for every allocation.
|
|
//#define DEBUG_TRACEMALLOC_PRESARENA 1
|
|
|
|
// The debugging version of nsPresArena does not free all the memory it
|
|
// allocated when the arena itself is destroyed.
|
|
#ifdef DEBUG_TRACEMALLOC_PRESARENA
|
|
#define PRESARENA_MUST_FREE_DURING_DESTROY PR_TRUE
|
|
#else
|
|
#define PRESARENA_MUST_FREE_DURING_DESTROY PR_FALSE
|
|
#endif
|
|
|
|
class nsPresArena {
|
|
public:
|
|
nsPresArena();
|
|
~nsPresArena();
|
|
|
|
// Pool allocation with recycler lists indexed by object size.
|
|
NS_HIDDEN_(void*) AllocateBySize(size_t aSize);
|
|
NS_HIDDEN_(void) FreeBySize(size_t aSize, void* aPtr);
|
|
|
|
// Pool allocation with recycler lists indexed by object-type code.
|
|
// Every type code must always be used with the same object size.
|
|
NS_HIDDEN_(void*) AllocateByCode(nsQueryFrame::FrameIID aCode, size_t aSize);
|
|
NS_HIDDEN_(void) FreeByCode(nsQueryFrame::FrameIID aCode, void* aPtr);
|
|
|
|
PRUint32 Size();
|
|
|
|
/**
|
|
* Get the poison value that can be used to fill a memory space with
|
|
* an address that leads to a safe crash when dereferenced.
|
|
*
|
|
* The caller is responsible for ensuring that a pres shell has been
|
|
* initialized before calling this.
|
|
*/
|
|
static PRUword GetPoisonValue();
|
|
|
|
private:
|
|
struct State;
|
|
State* mState;
|
|
};
|
|
|
|
#endif
|