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
39 namespace WebCore {
40
DOMDataStoreHandle()41 DOMDataStoreHandle::DOMDataStoreHandle()
42 : m_store(new ScopedDOMDataStore(DOMData::getCurrent()))
43 {
44 }
45
~DOMDataStoreHandle()46 DOMDataStoreHandle::~DOMDataStoreHandle()
47 {
48 }
49
50 static bool fasterDOMStoreAccess = false;
51
getDOMDataStore()52 static 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
enableFasterDOMStoreAccess()62 void enableFasterDOMStoreAccess()
63 {
64 fasterDOMStoreAccess = true;
65 }
66
getDOMNodeMap()67 DOMNodeMapping& getDOMNodeMap()
68 {
69 return getDOMDataStore().domNodeMap();
70 }
71
getDOMObjectMap()72 DOMWrapperMap<void>& getDOMObjectMap()
73 {
74 return getDOMDataStore().domObjectMap();
75 }
76
getActiveDOMObjectMap()77 DOMWrapperMap<void>& getActiveDOMObjectMap()
78 {
79 return getDOMDataStore().activeDomObjectMap();
80 }
81
82 #if ENABLE(SVG)
83
getDOMSVGElementInstanceMap()84 DOMWrapperMap<SVGElementInstance>& getDOMSVGElementInstanceMap()
85 {
86 return getDOMDataStore().domSvgElementInstanceMap();
87 }
88
89 #endif // ENABLE(SVG)
90
removeAllDOMObjectsInCurrentThread()91 void 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
visitDOMNodesInCurrentThread(DOMWrapperMap<Node>::Visitor * visitor)115 void 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
visitDOMObjectsInCurrentThread(DOMWrapperMap<void>::Visitor * visitor)130 void 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
visitActiveDOMObjectsInCurrentThread(DOMWrapperMap<void>::Visitor * visitor)145 void 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
visitDOMSVGElementInstancesInCurrentThread(DOMWrapperMap<SVGElementInstance>::Visitor * visitor)162 void 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