serenity/Kernel/Heap/SlabAllocator.h

/*
 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#pragma once

#include <AK/Function.h>
#include <AK/Types.h>

namespace Kernel {

#define SLAB_ALLOC_SCRUB_BYTE 0xab
#define SLAB_DEALLOC_SCRUB_BYTE 0xbc

void* slab_alloc(size_t slab_size);
void slab_dealloc(void*, size_t slab_size);
void slab_alloc_init();
void slab_alloc_stats(Function<void(size_t slab_size, size_t allocated, size_t free)>);

#define MAKE_SLAB_ALLOCATED(type)                                                          \
public:                                                                                    \
    [[nodiscard]] void* operator new(size_t) noexcept { return slab_alloc(sizeof(type)); } \
    void operator delete(void* ptr) noexcept { slab_dealloc(ptr, sizeof(type)); }          \
                                                                                           \
private:

}