ladybird/Kernel/FileSystem/AnonymousFile.cpp

33 lines
791 B
C++

/*
* Copyright (c) 2021-2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/FileSystem/AnonymousFile.h>
#include <Kernel/Memory/AnonymousVMObject.h>
#include <Kernel/Tasks/Process.h>
namespace Kernel {
AnonymousFile::AnonymousFile(NonnullLockRefPtr<Memory::AnonymousVMObject> vmobject)
: m_vmobject(move(vmobject))
{
}
AnonymousFile::~AnonymousFile() = default;
ErrorOr<NonnullLockRefPtr<Memory::VMObject>> AnonymousFile::vmobject_for_mmap(Process&, Memory::VirtualRange const&, u64& offset, bool)
{
if (offset != 0)
return EINVAL;
return m_vmobject;
}
ErrorOr<NonnullOwnPtr<KString>> AnonymousFile::pseudo_path(OpenFileDescription const&) const
{
return KString::try_create(":anonymous-file:"sv);
}
}