1 /**
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * (C) 1999 Antti Koivisto (koivisto@kde.org)
4 * Copyright (C) 2003, 2004, 2005, 2006, 2010 Apple Inc. All rights reserved.
5 * Copyright (C) 2006 Andrew Wellington (proton@wiretapped.net)
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public License
18 * along with this library; see the file COPYING.LIB. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
21 *
22 */
23
24 #include "config.h"
25 #include "BidiRun.h"
26 #include "InlineBox.h"
27 #include "RenderArena.h"
28 #include <wtf/RefCountedLeakCounter.h>
29
30 using namespace WTF;
31
32 namespace WebCore {
33
34 #ifndef NDEBUG
35 static RefCountedLeakCounter bidiRunCounter("BidiRun");
36
37 static bool inBidiRunDestroy;
38 #endif
39
destroy()40 void BidiRun::destroy()
41 {
42 #ifndef NDEBUG
43 inBidiRunDestroy = true;
44 #endif
45 RenderArena* renderArena = m_object->renderArena();
46 delete this;
47 #ifndef NDEBUG
48 inBidiRunDestroy = false;
49 #endif
50
51 // Recover the size left there for us by operator delete and free the memory.
52 renderArena->free(*reinterpret_cast<size_t*>(this), this);
53 }
54
operator new(size_t sz,RenderArena * renderArena)55 void* BidiRun::operator new(size_t sz, RenderArena* renderArena) throw()
56 {
57 #ifndef NDEBUG
58 bidiRunCounter.increment();
59 #endif
60 return renderArena->allocate(sz);
61 }
62
operator delete(void * ptr,size_t sz)63 void BidiRun::operator delete(void* ptr, size_t sz)
64 {
65 #ifndef NDEBUG
66 bidiRunCounter.decrement();
67 #endif
68 ASSERT(inBidiRunDestroy);
69
70 // Stash size where destroy() can find it.
71 *(size_t*)ptr = sz;
72 }
73
74 }
75