1/*
2 * Copyright (C) 2013 Apple 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. ``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 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 GCIncomingRefCountedSet_h
27#define GCIncomingRefCountedSet_h
28
29#include "GCIncomingRefCounted.h"
30
31namespace JSC {
32
33// T = some subtype of GCIncomingRefCounted, must support a gcSizeEstimateInBytes()
34// method.
35template<typename T>
36class GCIncomingRefCountedSet {
37public:
38 GCIncomingRefCountedSet();
39 ~GCIncomingRefCountedSet();
40
41 // Returns true if the native object is new to this set.
42 bool addReference(JSCell*, T*);
43
44 void sweep();
45
46 size_t size() const { return m_bytes; };
47
48private:
49 static bool removeAll(JSCell*);
50 static bool removeDead(JSCell*);
51
52 Vector<T*> m_vector;
53 size_t m_bytes;
54};
55
56} // namespace JSC
57
58#endif // GCIncomingRefCountedSet_h
59
60