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1 /* | |
2 * Copyright (C) 2007 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 * | |
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 MallocZoneSupport_h | |
30 #define MallocZoneSupport_h | |
31 | |
32 #include <malloc/malloc.h> | |
33 | |
34 namespace WTF { | |
35 | |
36 class RemoteMemoryReader { | |
37 task_t m_task; | |
38 memory_reader_t* m_reader; | |
39 | |
40 public: | |
41 RemoteMemoryReader(task_t task, memory_reader_t* reader) | |
42 : m_task(task) | |
43 , m_reader(reader) | |
44 { } | |
45 | |
46 void* operator()(vm_address_t address, size_t size) const | |
47 { | |
48 void* output; | |
49 kern_return_t err = (*m_reader)(m_task, address, size, static_cast<void*
*>(&output)); | |
50 if (err) | |
51 output = 0; | |
52 return output; | |
53 } | |
54 | |
55 template <typename T> | |
56 T* operator()(T* address, size_t size=sizeof(T)) const | |
57 { | |
58 return static_cast<T*>((*this)(reinterpret_cast<vm_address_t>(address),
size)); | |
59 } | |
60 | |
61 template <typename T> | |
62 T* nextEntryInHardenedLinkedList(T** address, uintptr_t entropy) const; | |
63 }; | |
64 | |
65 } // namespace WTF | |
66 | |
67 #endif // MallocZoneSupport_h | |
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