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/*
* Copyright (c) 2018-2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Error.h>
#include <AK/IntrusiveList.h>
#include <AK/RefPtr.h>
#include <Kernel/Forward.h>
#include <Kernel/KString.h>
#include <Kernel/Library/ListedRefCounted.h>
#include <Kernel/Locking/SpinlockProtected.h>
namespace Kernel {
class Custody final : public ListedRefCounted<Custody, LockType::Spinlock> {
public:
static ErrorOr<NonnullRefPtr<Custody>> try_create(Custody* parent, StringView name, Inode&, int mount_flags);
~Custody();
RefPtr<Custody> parent() { return m_parent; }
RefPtr<Custody const> parent() const { return m_parent; }
Inode& inode() { return *m_inode; }
Inode const& inode() const { return *m_inode; }
StringView name() const { return m_name->view(); }
ErrorOr<NonnullOwnPtr<KString>> try_serialize_absolute_path() const;
int mount_flags() const { return m_mount_flags; }
bool is_readonly() const;
private:
Custody(Custody* parent, NonnullOwnPtr<KString> name, Inode&, int mount_flags);
RefPtr<Custody> m_parent;
NonnullOwnPtr<KString> m_name;
NonnullLockRefPtr<Inode> m_inode;
int m_mount_flags { 0 };
mutable IntrusiveListNode<Custody> m_all_custodies_list_node;
public:
using AllCustodiesList = IntrusiveList<&Custody::m_all_custodies_list_node>;
static SpinlockProtected<Custody::AllCustodiesList, LockRank::None>& all_instances();
};
}
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