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7b745a20f1
These were easy to pick-up as these pointers are assigned during the construction point and are never changed afterwards. This small change to these pointers will ensure that our code will not accidentally assign these pointers with a new object which is always a kind of bug we will want to prevent.
51 lines
1.5 KiB
C++
51 lines
1.5 KiB
C++
/*
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* Copyright (c) 2018-2022, 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 <AK/Error.h>
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#include <AK/IntrusiveList.h>
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#include <AK/RefPtr.h>
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#include <Kernel/Forward.h>
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#include <Kernel/KString.h>
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#include <Kernel/Library/ListedRefCounted.h>
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#include <Kernel/Locking/SpinlockProtected.h>
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namespace Kernel {
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class Custody final : public ListedRefCounted<Custody, LockType::Spinlock> {
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public:
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static ErrorOr<NonnullRefPtr<Custody>> try_create(Custody* parent, StringView name, Inode&, int mount_flags);
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~Custody();
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RefPtr<Custody> parent() { return m_parent; }
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RefPtr<Custody const> parent() const { return m_parent; }
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Inode& inode() { return *m_inode; }
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Inode const& inode() const { return *m_inode; }
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StringView name() const { return m_name->view(); }
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ErrorOr<NonnullOwnPtr<KString>> try_serialize_absolute_path() const;
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int mount_flags() const { return m_mount_flags; }
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bool is_readonly() const;
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private:
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Custody(Custody* parent, NonnullOwnPtr<KString> name, Inode&, int mount_flags);
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RefPtr<Custody> m_parent;
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NonnullOwnPtr<KString> m_name;
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NonnullRefPtr<Inode> const m_inode;
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int m_mount_flags { 0 };
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mutable IntrusiveListNode<Custody> m_all_custodies_list_node;
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public:
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using AllCustodiesList = IntrusiveList<&Custody::m_all_custodies_list_node>;
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static SpinlockProtected<Custody::AllCustodiesList, LockRank::None>& all_instances();
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};
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}
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