2020-02-28 19:20:35 +00:00
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/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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2021-04-22 08:24:48 +00:00
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* SPDX-License-Identifier: BSD-2-Clause
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2020-02-28 19:20:35 +00:00
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*/
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#pragma once
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#include <AK/Bitmap.h>
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2021-08-06 08:45:34 +00:00
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#include <Kernel/Memory/VMObject.h>
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2020-02-28 19:20:35 +00:00
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#include <Kernel/UnixTypes.h>
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2021-08-06 11:49:36 +00:00
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namespace Kernel::Memory {
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2020-02-28 19:20:35 +00:00
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class InodeVMObject : public VMObject {
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public:
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virtual ~InodeVMObject() override;
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Inode& inode() { return *m_inode; }
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2021-07-21 22:02:34 +00:00
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Inode const& inode() const { return *m_inode; }
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2020-02-28 19:20:35 +00:00
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size_t amount_dirty() const;
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size_t amount_clean() const;
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int release_all_clean_pages();
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2022-08-15 03:05:42 +00:00
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int try_release_clean_pages(int page_amount);
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2020-02-28 19:20:35 +00:00
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u32 writable_mappings() const;
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protected:
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2024-05-11 15:15:51 +00:00
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explicit InodeVMObject(Inode&, FixedArray<RefPtr<PhysicalRAMPage>>&&, Bitmap dirty_pages);
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explicit InodeVMObject(InodeVMObject const&, FixedArray<RefPtr<PhysicalRAMPage>>&&, Bitmap dirty_pages);
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2020-02-28 19:20:35 +00:00
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2021-07-21 22:02:34 +00:00
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InodeVMObject& operator=(InodeVMObject const&) = delete;
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2020-02-28 19:20:35 +00:00
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InodeVMObject& operator=(InodeVMObject&&) = delete;
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InodeVMObject(InodeVMObject&&) = delete;
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virtual bool is_inode() const final { return true; }
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2023-04-07 11:49:49 +00:00
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NonnullRefPtr<Inode> const m_inode;
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2020-02-28 19:20:35 +00:00
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Bitmap m_dirty_pages;
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};
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2020-05-08 20:10:47 +00:00
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}
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