Kernel/FileSystem/AnonymousFile.cpp


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/*
 * 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/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);
}

}