serenity/Kernel/Memory/SharedInodeVMObject.h
sin-ack 4bfd6e41b9 Kernel: Make Kernel::VMObject allocation functions return KResultOr
This makes for nicer handling of errors compared to checking whether a
RefPtr is null. Additionally, this will give way to return different
types of errors in the future.
2021-08-15 15:41:02 +02:00

34 lines
862 B
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Bitmap.h>
#include <Kernel/Memory/InodeVMObject.h>
#include <Kernel/UnixTypes.h>
namespace Kernel::Memory {
class SharedInodeVMObject final : public InodeVMObject {
AK_MAKE_NONMOVABLE(SharedInodeVMObject);
public:
static RefPtr<SharedInodeVMObject> try_create_with_inode(Inode&);
virtual KResultOr<NonnullRefPtr<VMObject>> try_clone() override;
private:
virtual bool is_shared_inode() const override { return true; }
explicit SharedInodeVMObject(Inode&, size_t);
explicit SharedInodeVMObject(SharedInodeVMObject const&);
virtual StringView class_name() const override { return "SharedInodeVMObject"sv; }
SharedInodeVMObject& operator=(SharedInodeVMObject const&) = delete;
};
}