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68 lines
2.5 KiB
C++
68 lines
2.5 KiB
C++
/*
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* Copyright (C) 2007 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SKY_ENGINE_WTF_MALLOCZONESUPPORT_H_
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#define SKY_ENGINE_WTF_MALLOCZONESUPPORT_H_
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#include <malloc/malloc.h>
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namespace WTF {
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class RemoteMemoryReader {
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task_t m_task;
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memory_reader_t* m_reader;
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public:
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RemoteMemoryReader(task_t task, memory_reader_t* reader)
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: m_task(task)
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, m_reader(reader)
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{ }
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void* operator()(vm_address_t address, size_t size) const
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{
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void* output;
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kern_return_t err = (*m_reader)(m_task, address, size, static_cast<void**>(&output));
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if (err)
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output = 0;
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return output;
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}
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template <typename T>
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T* operator()(T* address, size_t size=sizeof(T)) const
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{
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return static_cast<T*>((*this)(reinterpret_cast<vm_address_t>(address), size));
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}
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template <typename T>
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T* nextEntryInHardenedLinkedList(T** address, uintptr_t entropy) const;
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};
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} // namespace WTF
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#endif // SKY_ENGINE_WTF_MALLOCZONESUPPORT_H_
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