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 "bindings/v8/DOMDataStore.h"
33
34 #include "bindings/v8/DOMWrapperMap.h"
35 #include "bindings/v8/V8Binding.h"
36 #include "wtf/MainThread.h"
37
38 namespace WebCore {
39
DOMDataStore(WrapperWorldType type)40 DOMDataStore::DOMDataStore(WrapperWorldType type)
41 : m_type(type)
42 , m_wrapperMap(v8::Isolate::GetCurrent()) // FIXME Don't call GetCurrent twice.
43 {
44 V8PerIsolateData::current()->registerDOMDataStore(this);
45 }
46
~DOMDataStore()47 DOMDataStore::~DOMDataStore()
48 {
49 ASSERT(m_type != MainWorld); // We never actually destruct the main world's DOMDataStore.
50 V8PerIsolateData::current()->unregisterDOMDataStore(this);
51 m_wrapperMap.clear();
52 }
53
mainWorldStore()54 DOMDataStore& DOMDataStore::mainWorldStore()
55 {
56 DEFINE_STATIC_LOCAL(DOMDataStore, mainWorldDOMDataStore, (MainWorld));
57 ASSERT(isMainThread());
58 return mainWorldDOMDataStore;
59 }
60
current(v8::Isolate * isolate)61 DOMDataStore& DOMDataStore::current(v8::Isolate* isolate)
62 {
63 V8PerIsolateData* data = isolate ? V8PerIsolateData::from(isolate) : V8PerIsolateData::current();
64 if (UNLIKELY(!!data->workerDOMDataStore()))
65 return *data->workerDOMDataStore();
66
67 if (DOMWrapperWorld::isolatedWorldsExist()) {
68 DOMWrapperWorld* isolatedWorld = DOMWrapperWorld::isolatedWorld(isolate->GetEnteredContext());
69 if (UNLIKELY(!!isolatedWorld))
70 return isolatedWorld->isolatedWorldDOMDataStore();
71 }
72
73 return mainWorldStore();
74 }
75
76 } // namespace WebCore
77