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Diffstat (limited to 'src/3rdparty/webkit/JavaScriptCore/wtf/MallocZoneSupport.h')
-rw-r--r-- | src/3rdparty/webkit/JavaScriptCore/wtf/MallocZoneSupport.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/JavaScriptCore/wtf/MallocZoneSupport.h b/src/3rdparty/webkit/JavaScriptCore/wtf/MallocZoneSupport.h new file mode 100644 index 0000000..62df145 --- /dev/null +++ b/src/3rdparty/webkit/JavaScriptCore/wtf/MallocZoneSupport.h @@ -0,0 +1,65 @@ +/* + * 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)); + ASSERT(!err); + 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)); + } +}; + +} // namespace WTF + +#endif // MallocZoneSupport_h |