1/* 2 * Copyright (C) 2009 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#include "config.h" 32#include "V8DOMMap.h" 33 34#include "DOMData.h" 35#include "DOMDataStore.h" 36#include "MainThreadDOMData.h" 37#include "ScopedDOMDataStore.h" 38 39namespace WebCore { 40 41DOMDataStoreHandle::DOMDataStoreHandle() 42 : m_store(new ScopedDOMDataStore(DOMData::getCurrent())) 43{ 44} 45 46DOMDataStoreHandle::~DOMDataStoreHandle() 47{ 48} 49 50static bool fasterDOMStoreAccess = false; 51 52static inline DOMDataStore& getDOMDataStore() 53{ 54 if (LIKELY(fasterDOMStoreAccess)) { 55 ASSERT(WTF::isMainThread()); 56 return MainThreadDOMData::getCurrentMainThreadStore(); 57 } 58 59 return DOMData::getCurrent()->getStore(); 60} 61 62void enableFasterDOMStoreAccess() 63{ 64 fasterDOMStoreAccess = true; 65} 66 67DOMNodeMapping& getDOMNodeMap() 68{ 69 return getDOMDataStore().domNodeMap(); 70} 71 72DOMWrapperMap<void>& getDOMObjectMap() 73{ 74 return getDOMDataStore().domObjectMap(); 75} 76 77DOMWrapperMap<void>& getActiveDOMObjectMap() 78{ 79 return getDOMDataStore().activeDomObjectMap(); 80} 81 82#if ENABLE(SVG) 83 84DOMWrapperMap<SVGElementInstance>& getDOMSVGElementInstanceMap() 85{ 86 return getDOMDataStore().domSvgElementInstanceMap(); 87} 88 89#endif // ENABLE(SVG) 90 91void removeAllDOMObjectsInCurrentThread() 92{ 93 DOMDataStore& store = getDOMDataStore(); 94 95 v8::HandleScope scope; 96 97 // The DOM objects with the following types only exist on the main thread. 98 if (WTF::isMainThread()) { 99 // Remove all DOM nodes. 100 DOMData::removeObjectsFromWrapperMap<Node>(&store, store.domNodeMap()); 101 102#if ENABLE(SVG) 103 // Remove all SVG element instances in the wrapper map. 104 DOMData::removeObjectsFromWrapperMap<SVGElementInstance>(&store, store.domSvgElementInstanceMap()); 105#endif 106 } 107 108 // Remove all DOM objects in the wrapper map. 109 DOMData::removeObjectsFromWrapperMap<void>(&store, store.domObjectMap()); 110 111 // Remove all active DOM objects in the wrapper map. 112 DOMData::removeObjectsFromWrapperMap<void>(&store, store.activeDomObjectMap()); 113} 114 115void visitDOMNodesInCurrentThread(DOMWrapperMap<Node>::Visitor* visitor) 116{ 117 v8::HandleScope scope; 118 119 WTF::MutexLocker locker(DOMDataStore::allStoresMutex()); 120 DOMDataList& list = DOMDataStore::allStores(); 121 for (size_t i = 0; i < list.size(); ++i) { 122 DOMDataStore* store = list[i]; 123 if (!store->domData()->owningThread() == WTF::currentThread()) 124 continue; 125 126 store->domNodeMap().visit(store, visitor); 127 } 128} 129 130void visitDOMObjectsInCurrentThread(DOMWrapperMap<void>::Visitor* visitor) 131{ 132 v8::HandleScope scope; 133 134 WTF::MutexLocker locker(DOMDataStore::allStoresMutex()); 135 DOMDataList& list = DOMDataStore::allStores(); 136 for (size_t i = 0; i < list.size(); ++i) { 137 DOMDataStore* store = list[i]; 138 if (!store->domData()->owningThread() == WTF::currentThread()) 139 continue; 140 141 store->domObjectMap().visit(store, visitor); 142 } 143} 144 145void visitActiveDOMObjectsInCurrentThread(DOMWrapperMap<void>::Visitor* visitor) 146{ 147 v8::HandleScope scope; 148 149 WTF::MutexLocker locker(DOMDataStore::allStoresMutex()); 150 DOMDataList& list = DOMDataStore::allStores(); 151 for (size_t i = 0; i < list.size(); ++i) { 152 DOMDataStore* store = list[i]; 153 if (!store->domData()->owningThread() == WTF::currentThread()) 154 continue; 155 156 store->activeDomObjectMap().visit(store, visitor); 157 } 158} 159 160#if ENABLE(SVG) 161 162void visitDOMSVGElementInstancesInCurrentThread(DOMWrapperMap<SVGElementInstance>::Visitor* visitor) 163{ 164 v8::HandleScope scope; 165 166 WTF::MutexLocker locker(DOMDataStore::allStoresMutex()); 167 DOMDataList& list = DOMDataStore::allStores(); 168 for (size_t i = 0; i < list.size(); ++i) { 169 DOMDataStore* store = list[i]; 170 if (!store->domData()->owningThread() == WTF::currentThread()) 171 continue; 172 173 store->domSvgElementInstanceMap().visit(store, visitor); 174 } 175} 176 177#endif 178 179} // namespace WebCore 180