/platform/external/webkit/WebCore/bridge/runtime_root.h

 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 <runtime/Protect.h>
33
34#include <wtf/Forward.h>
35#include <wtf/HashSet.h>
36#include <wtf/Noncopyable.h>
37#include <wtf/PassRefPtr.h>
38#include <wtf/RefCounted.h>
39
40namespace JSC {
41
42class Interpreter;
43class JSGlobalObject;
44class RuntimeObjectImp;
45
46namespace Bindings {
47
48class RootObject;
49
50typedef HashCountedSet<JSObject*> ProtectCountSet;
51
52extern RootObject* findProtectingRootObject(JSObject*);
53extern RootObject* findRootObject(JSGlobalObject*);
54
55class RootObject : public RefCounted<RootObject> {
56    friend class JavaJSObject;
57
58public:
59    ~RootObject();
60    
61    static PassRefPtr<RootObject> create(const void* nativeHandle, JSGlobalObject*);
62
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
73    void addRuntimeObject(RuntimeObjectImp*);
74    void removeRuntimeObject(RuntimeObjectImp*);
75private:
76    RootObject(const void* nativeHandle, JSGlobalObject*);
77    
78    bool m_isValid;
79    
80    const void* m_nativeHandle;
81    ProtectedPtr<JSGlobalObject> m_globalObject;
82    ProtectCountSet m_protectCountSet;
83
84    HashSet<RuntimeObjectImp*> m_runtimeObjects;    
85};
86
87} // namespace Bindings
88
89} // namespace JSC
90
91#endif // RUNTIME_ROOT_H_