1 /** 2 * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org) 3 * (C) 1999 Antti Koivisto (koivisto (at) kde.org) 4 * Copyright (C) 2003, 2004, 2005, 2006, 2010 Apple Inc. All rights reserved. 5 * Copyright (C) 2006 Andrew Wellington (proton (at) 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 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 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 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