Source/JavaScriptCore/heap/GigacageAlignedMemoryAllocator.h

/*
 * Copyright (C) 2017 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
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */

#pragma once

#include "AlignedMemoryAllocator.h"
#include <wtf/Gigacage.h>

namespace JSC {

class GigacageAlignedMemoryAllocator : public AlignedMemoryAllocator {
public:
    GigacageAlignedMemoryAllocator(Gigacage::Kind);
    ~GigacageAlignedMemoryAllocator();
    
    void* tryAllocateAlignedMemory(size_t alignment, size_t size) override;
    void freeAlignedMemory(void*) override;
    
    void dump(PrintStream&) const override;

    void* tryAllocateMemory(size_t) override;
    void freeMemory(void*) override;
    void* tryReallocateMemory(void*, size_t) override;

private:
    Gigacage::Kind m_kind;
};

} // namespace JSC