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79fa9765ca
We now use AK::Error and AK::ErrorOr<T> in both kernel and userspace! This was a slightly tedious refactoring that took a long time, so it's not unlikely that some bugs crept in. Nevertheless, it does pass basic functionality testing, and it's just real nice to finally see the same pattern in all contexts. :^)
57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
/*
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* Copyright (c) 2018-2020, 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/RefCounted.h>
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#include <AK/RefPtr.h>
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#include <AK/String.h>
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#include <Kernel/Forward.h>
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#include <Kernel/Heap/SlabAllocator.h>
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#include <Kernel/KString.h>
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namespace Kernel {
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// FIXME: Custody needs some locking.
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class Custody : public RefCountedBase {
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MAKE_SLAB_ALLOCATED(Custody)
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public:
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bool unref() const;
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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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Custody* parent() { return m_parent.ptr(); }
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Custody const* parent() const { return m_parent.ptr(); }
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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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String 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> 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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};
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}
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