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 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef V8PerIsolateData_h 27 #define V8PerIsolateData_h 28 29 #include "bindings/core/v8/ScopedPersistent.h" 30 #include "bindings/core/v8/ScriptState.h" 31 #include "bindings/core/v8/V8HiddenValue.h" 32 #include "bindings/core/v8/WrapperTypeInfo.h" 33 #include "gin/public/gin_embedders.h" 34 #include "gin/public/isolate_holder.h" 35 #include "modules/indexeddb/IDBPendingTransactionMonitor.h" 36 #include "wtf/Forward.h" 37 #include "wtf/HashMap.h" 38 #include "wtf/OwnPtr.h" 39 #include "wtf/Vector.h" 40 #include <v8.h> 41 42 namespace blink { 43 44 class DOMDataStore; 45 class GCEventData; 46 class StringCache; 47 struct WrapperTypeInfo; 48 49 class ExternalStringVisitor; 50 51 typedef WTF::Vector<DOMDataStore*> DOMDataStoreList; 52 53 class V8PerIsolateData { 54 public: 55 static v8::Isolate* initialize(); from(v8::Isolate * isolate)56 static V8PerIsolateData* from(v8::Isolate* isolate) 57 { 58 ASSERT(isolate); 59 ASSERT(isolate->GetData(gin::kEmbedderBlink)); 60 return static_cast<V8PerIsolateData*>(isolate->GetData(gin::kEmbedderBlink)); 61 } 62 63 static void willBeDestroyed(v8::Isolate*); 64 static void destroy(v8::Isolate*); 65 static v8::Isolate* mainThreadIsolate(); 66 destructionPending()67 bool destructionPending() const { return m_destructionPending; } isolate()68 v8::Isolate* isolate() { return m_isolateHolder->isolate(); } 69 70 v8::Handle<v8::FunctionTemplate> toStringTemplate(); 71 stringCache()72 StringCache* stringCache() { return m_stringCache.get(); } 73 74 v8::Persistent<v8::Value>& ensureLiveRoot(); 75 recursionLevel()76 int recursionLevel() const { return m_recursionLevel; } incrementRecursionLevel()77 int incrementRecursionLevel() { return ++m_recursionLevel; } decrementRecursionLevel()78 int decrementRecursionLevel() { return --m_recursionLevel; } isHandlingRecursionLevelError()79 bool isHandlingRecursionLevelError() const { return m_isHandlingRecursionLevelError; } setIsHandlingRecursionLevelError(bool value)80 void setIsHandlingRecursionLevelError(bool value) { m_isHandlingRecursionLevelError = value; } 81 performingMicrotaskCheckpoint()82 bool performingMicrotaskCheckpoint() const { return m_performingMicrotaskCheckpoint; } setPerformingMicrotaskCheckpoint(bool performingMicrotaskCheckpoint)83 void setPerformingMicrotaskCheckpoint(bool performingMicrotaskCheckpoint) { m_performingMicrotaskCheckpoint = performingMicrotaskCheckpoint; } 84 85 #if ENABLE(ASSERT) internalScriptRecursionLevel()86 int internalScriptRecursionLevel() const { return m_internalScriptRecursionLevel; } incrementInternalScriptRecursionLevel()87 int incrementInternalScriptRecursionLevel() { return ++m_internalScriptRecursionLevel; } decrementInternalScriptRecursionLevel()88 int decrementInternalScriptRecursionLevel() { return --m_internalScriptRecursionLevel; } 89 #endif 90 gcEventData()91 GCEventData* gcEventData() { return m_gcEventData.get(); } hiddenValue()92 V8HiddenValue* hiddenValue() { return m_hiddenValue.get(); } 93 94 v8::Handle<v8::FunctionTemplate> domTemplate(void* domTemplateKey, v8::FunctionCallback = 0, v8::Handle<v8::Value> data = v8::Handle<v8::Value>(), v8::Handle<v8::Signature> = v8::Handle<v8::Signature>(), int length = 0); 95 v8::Handle<v8::FunctionTemplate> existingDOMTemplate(void* domTemplateKey); 96 void setDOMTemplate(void* domTemplateKey, v8::Handle<v8::FunctionTemplate>); 97 98 bool hasInstance(const WrapperTypeInfo*, v8::Handle<v8::Value>); 99 v8::Handle<v8::Object> findInstanceInPrototypeChain(const WrapperTypeInfo*, v8::Handle<v8::Value>); 100 101 v8::Local<v8::Context> ensureScriptRegexpContext(); 102 previousSamplingState()103 const char* previousSamplingState() const { return m_previousSamplingState; } setPreviousSamplingState(const char * name)104 void setPreviousSamplingState(const char* name) { m_previousSamplingState = name; } 105 106 IDBPendingTransactionMonitor* ensureIDBPendingTransactionMonitor(); 107 108 private: 109 V8PerIsolateData(); 110 ~V8PerIsolateData(); 111 112 typedef HashMap<const void*, v8::Eternal<v8::FunctionTemplate> > DOMTemplateMap; 113 DOMTemplateMap& currentDOMTemplateMap(); 114 bool hasInstance(const WrapperTypeInfo*, v8::Handle<v8::Value>, DOMTemplateMap&); 115 v8::Handle<v8::Object> findInstanceInPrototypeChain(const WrapperTypeInfo*, v8::Handle<v8::Value>, DOMTemplateMap&); 116 117 bool m_destructionPending; 118 OwnPtr<gin::IsolateHolder> m_isolateHolder; 119 DOMTemplateMap m_domTemplateMapForMainWorld; 120 DOMTemplateMap m_domTemplateMapForNonMainWorld; 121 ScopedPersistent<v8::FunctionTemplate> m_toStringTemplate; 122 OwnPtr<StringCache> m_stringCache; 123 OwnPtr<V8HiddenValue> m_hiddenValue; 124 ScopedPersistent<v8::Value> m_liveRoot; 125 RefPtr<ScriptState> m_scriptRegexpScriptState; 126 127 const char* m_previousSamplingState; 128 129 bool m_constructorMode; 130 friend class ConstructorMode; 131 132 int m_recursionLevel; 133 bool m_isHandlingRecursionLevelError; 134 135 #if ENABLE(ASSERT) 136 int m_internalScriptRecursionLevel; 137 #endif 138 OwnPtr<GCEventData> m_gcEventData; 139 bool m_performingMicrotaskCheckpoint; 140 141 OwnPtr<IDBPendingTransactionMonitor> m_idbPendingTransactionMonitor; 142 }; 143 144 } // namespace blink 145 146 #endif // V8PerIsolateData_h 147