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