1/*
2 * Copyright (C) 2008, 2009 Paul Pedriana <ppedriana@ea.com>. 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 *
8 * 1.  Redistributions of source code must retain the above copyright
9 *     notice, this list of conditions and the following disclaimer.
10 * 2.  Redistributions in binary form must reproduce the above copyright
11 *     notice, this list of conditions and the following disclaimer in the
12 *     documentation and/or other materials provided with the distribution.
13 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 *     its contributors may be used to endorse or promote products derived
15 *     from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef FastAllocBase_h
30#define FastAllocBase_h
31
32// Provides customizable overrides of fastMalloc/fastFree and operator new/delete
33//
34// Provided functionality:
35//    Macro: WTF_MAKE_FAST_ALLOCATED
36//
37// Example usage:
38//    class Widget {
39//        WTF_MAKE_FAST_ALLOCATED
40//    ...
41//    };
42//
43//    struct Data {
44//        WTF_MAKE_FAST_ALLOCATED
45//    public:
46//    ...
47//    };
48//
49
50#include "wtf/Assertions.h"
51#include "wtf/FastMalloc.h"
52#include "wtf/StdLibExtras.h"
53
54#define WTF_MAKE_FAST_ALLOCATED \
55public: \
56    void* operator new(size_t, void* p) { return p; } \
57    void* operator new[](size_t, void* p) { return p; } \
58    \
59    void* operator new(size_t size) \
60    { \
61        return ::WTF::fastMalloc(size); \
62    } \
63    \
64    void operator delete(void* p) \
65    { \
66        ::WTF::fastFree(p); \
67    } \
68    \
69    void* operator new[](size_t size) \
70    { \
71        return ::WTF::fastMalloc(size); \
72    } \
73    \
74    void operator delete[](void* p) \
75    { \
76         ::WTF::fastFree(p); \
77    } \
78    void* operator new(size_t, NotNullTag, void* location) \
79    { \
80        ASSERT(location); \
81        return location; \
82    } \
83private: \
84typedef int __thisIsHereToForceASemicolonAfterThisMacro
85
86#endif // FastAllocBase_h
87