mirror of
https://github.com/RGBCube/serenity
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38 lines
847 B
C++
38 lines
847 B
C++
/*
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* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include "Range.h"
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#include <AK/Vector.h>
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namespace UserspaceEmulator {
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class RangeAllocator {
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public:
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RangeAllocator();
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void initialize_with_range(VirtualAddress, size_t);
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Optional<Range> allocate_anywhere(size_t, size_t alignment = PAGE_SIZE);
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Optional<Range> allocate_specific(VirtualAddress, size_t);
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Optional<Range> allocate_randomized(size_t, size_t alignment);
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void deallocate(Range const&);
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void reserve_user_range(VirtualAddress, size_t);
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void dump() const;
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bool contains(Range const& range) const { return m_total_range.contains(range); }
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private:
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void carve_at_index(int, Range const&);
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Vector<Range> m_available_ranges;
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Range m_total_range;
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};
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}
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