ladybird/Kernel/Memory/PrivateInodeVMObject.cpp
creator1creeper1 9a1dfe70fe Kernel: Make PrivateInodeVMObject construction OOM-aware
This commit moves the allocation of the resources required for
PrivateInodeVMObject from its constructors to its factory functions.

We're making this change to expose the fallibility of the allocation.
2022-01-15 22:16:00 +02:00

39 lines
1.2 KiB
C++

/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/FileSystem/Inode.h>
#include <Kernel/Memory/PrivateInodeVMObject.h>
namespace Kernel::Memory {
ErrorOr<NonnullRefPtr<PrivateInodeVMObject>> PrivateInodeVMObject::try_create_with_inode(Inode& inode)
{
auto new_physical_pages = TRY(VMObject::try_create_physical_pages(inode.size()));
return adopt_nonnull_ref_or_enomem(new (nothrow) PrivateInodeVMObject(inode, move(new_physical_pages)));
}
ErrorOr<NonnullRefPtr<VMObject>> PrivateInodeVMObject::try_clone()
{
auto new_physical_pages = TRY(this->try_clone_physical_pages());
return adopt_nonnull_ref_or_enomem<VMObject>(new (nothrow) PrivateInodeVMObject(*this, move(new_physical_pages)));
}
PrivateInodeVMObject::PrivateInodeVMObject(Inode& inode, FixedArray<RefPtr<PhysicalPage>>&& new_physical_pages)
: InodeVMObject(inode, move(new_physical_pages))
{
}
PrivateInodeVMObject::PrivateInodeVMObject(PrivateInodeVMObject const& other, FixedArray<RefPtr<PhysicalPage>>&& new_physical_pages)
: InodeVMObject(other, move(new_physical_pages))
{
}
PrivateInodeVMObject::~PrivateInodeVMObject()
{
}
}