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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/RefCounted.h>
#include <AK/RefPtr.h>
#include <AK/String.h>
#include <Kernel/Forward.h>
#include <Kernel/Heap/SlabAllocator.h>
namespace Kernel {
// FIXME: Custody needs some locking.
class Custody : public RefCounted<Custody> {
MAKE_SLAB_ALLOCATED(Custody)
public:
static NonnullRefPtr<Custody> create(Custody* parent, const StringView& name, Inode& inode, int mount_flags)
{
return adopt(*new Custody(parent, name, inode, mount_flags));
}
~Custody();
Custody* parent() { return m_parent.ptr(); }
const Custody* parent() const { return m_parent.ptr(); }
Inode& inode() { return *m_inode; }
const Inode& inode() const { return *m_inode; }
const String& name() const { return m_name; }
String absolute_path() const;
int mount_flags() const { return m_mount_flags; }
bool is_readonly() const;
private:
Custody(Custody* parent, const StringView& name, Inode&, int mount_flags);
RefPtr<Custody> m_parent;
String m_name;
NonnullRefPtr<Inode> m_inode;
int m_mount_flags { 0 };
};
}
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