1 /* 2 * Copyright (C) 2004 Apple Computer, 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 COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef RUNTIME_ROOT_H_ 27 #define RUNTIME_ROOT_H_ 28 29 #if PLATFORM(MAC) 30 #include "jni_jsobject.h" 31 #endif 32 #include <heap/Strong.h> 33 34 #include <runtime/WeakGCMap.h> 35 #include <wtf/Forward.h> 36 #include <wtf/Noncopyable.h> 37 #include <wtf/PassRefPtr.h> 38 #include <wtf/RefCounted.h> 39 40 namespace JSC { 41 42 class Interpreter; 43 class JSGlobalObject; 44 45 namespace Bindings { 46 47 class RootObject; 48 class RuntimeObject; 49 50 typedef HashCountedSet<JSObject*> ProtectCountSet; 51 52 extern RootObject* findProtectingRootObject(JSObject*); 53 extern RootObject* findRootObject(JSGlobalObject*); 54 55 class RootObject : public RefCounted<RootObject> { 56 friend class JavaJSObject; 57 58 public: 59 ~RootObject(); 60 61 static PassRefPtr<RootObject> create(const void* nativeHandle, JSGlobalObject*); 62 isValid()63 bool isValid() { return m_isValid; } 64 void invalidate(); 65 66 void gcProtect(JSObject*); 67 void gcUnprotect(JSObject*); 68 bool gcIsProtected(JSObject*); 69 70 const void* nativeHandle() const; 71 JSGlobalObject* globalObject() const; 72 void updateGlobalObject(JSGlobalObject*); 73 74 void addRuntimeObject(JSGlobalData&, RuntimeObject*); 75 void removeRuntimeObject(RuntimeObject*); 76 77 struct InvalidationCallback { 78 virtual void operator()(RootObject*) = 0; 79 virtual ~InvalidationCallback(); 80 }; addInvalidationCallback(InvalidationCallback * callback)81 void addInvalidationCallback(InvalidationCallback* callback) { m_invalidationCallbacks.add(callback); } 82 83 private: 84 RootObject(const void* nativeHandle, JSGlobalObject*); 85 86 bool m_isValid; 87 88 const void* m_nativeHandle; 89 Strong<JSGlobalObject> m_globalObject; 90 91 ProtectCountSet m_protectCountSet; 92 WeakGCMap<RuntimeObject*, RuntimeObject> m_runtimeObjects; // Really need a WeakGCSet, but this will do. 93 94 HashSet<InvalidationCallback*> m_invalidationCallbacks; 95 }; 96 97 } // namespace Bindings 98 99 } // namespace JSC 100 101 #endif // RUNTIME_ROOT_H_ 102