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Kernel: Move the VM Range class to its own files

This commit is contained in:
Andreas Kling 2021-02-25 11:42:49 +01:00
parent c11511a0ab
commit 17f076d912
5 changed files with 125 additions and 59 deletions

View file

@ -26,57 +26,13 @@
#pragma once
#include <AK/String.h>
#include <AK/Traits.h>
#include <AK/Vector.h>
#include <Kernel/SpinLock.h>
#include <Kernel/VirtualAddress.h>
#include <Kernel/VM/Range.h>
namespace Kernel {
class Range {
friend class RangeAllocator;
public:
Range() = delete;
Range(VirtualAddress base, size_t size)
: m_base(base)
, m_size(size)
{
}
VirtualAddress base() const { return m_base; }
size_t size() const { return m_size; }
bool is_valid() const { return !m_base.is_null(); }
bool contains(VirtualAddress vaddr) const { return vaddr >= base() && vaddr < end(); }
VirtualAddress end() const { return m_base.offset(m_size); }
bool operator==(const Range& other) const
{
return m_base == other.m_base && m_size == other.m_size;
}
bool contains(VirtualAddress base, size_t size) const
{
if (base.offset(size) < base)
return false;
return base >= m_base && base.offset(size) <= end();
}
bool contains(const Range& other) const
{
return contains(other.base(), other.size());
}
Vector<Range, 2> carve(const Range&);
private:
VirtualAddress m_base;
size_t m_size { 0 };
};
class RangeAllocator {
public:
RangeAllocator();