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/*
* Copyright (C) 2021 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 INC. OR
* 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.
*/
#pragma once
#include "IsoMemoryAllocatorBase.h"
#include <wtf/Gigacage.h>
#if ENABLE(MALLOC_HEAP_BREAKDOWN)
#include <wtf/DebugHeap.h>
#endif
namespace JSC {
class StructureAlignedMemoryAllocator final : public IsoMemoryAllocatorBase {
public:
using Base = IsoMemoryAllocatorBase;
StructureAlignedMemoryAllocator(CString);
~StructureAlignedMemoryAllocator() final;
void dump(PrintStream&) const final;
void* tryAllocateMemory(size_t) final;
void freeMemory(void*) final;
void* tryReallocateMemory(void*, size_t) final;
static void initializeStructureAddressSpace();
protected:
void* tryMallocBlock() final;
void freeBlock(void* block) final;
void commitBlock(void* block) final;
void decommitBlock(void* block) final;
};
} // namespace JSC
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