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// Copyright 2024-2025, Amlal El Mahrouss (amlal@nekernel.org)
// Licensed under the Apache License, Version 2.0 (see LICENSE file)
// Official repository: https://github.com/ne-foss-org/nekernel
#ifndef NEKIT_PMM_H
#define NEKIT_PMM_H
#include <NeKit/Config.h>
#include <NeKit/PageMgr.h>
#include <NeKit/Ref.h>
namespace Kernel {
class Pmm;
class PTEWrapper;
// TODO: A PMM stands for Page Memory Manager. Which guarantees page retrieval and free.
class Pmm final {
public:
explicit Pmm();
~Pmm();
Pmm& operator=(const Pmm&) = delete;
Pmm(const Pmm&) = default;
Ref<PTEWrapper> RequestPage(Boolean user = false, Boolean readWrite = false);
Boolean FreePage(Ref<PTEWrapper> refPage);
Boolean ToggleRw(Ref<PTEWrapper> refPage, Boolean enable = true);
Boolean TogglePresent(Ref<PTEWrapper> refPage, Boolean enable = true);
Boolean ToggleUser(Ref<PTEWrapper> refPage, Boolean enable = true);
Boolean ToggleShare(Ref<PTEWrapper> refPage, Boolean enable = true);
/// @brief Get the page manager of this.
Ref<PageMgr>& Leak() { return fPageMgr; }
private:
Ref<PageMgr> fPageMgr;
};
} // namespace Kernel
#endif
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