ladybird/Kernel/Syscalls/ioctl.cpp
Liav A 7c87891c06 Kernel: Don't copy a Vector<FileDescriptionAndFlags>
Instead of copying a Vector everytime we need to enumerate a Process'
file descriptions, we can just temporarily lock so it won't change.
2021-06-29 20:53:59 +02:00

26 lines
600 B
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/FileSystem/FileDescription.h>
#include <Kernel/Process.h>
#include <LibC/sys/ioctl_numbers.h>
namespace Kernel {
KResultOr<FlatPtr> Process::sys$ioctl(int fd, unsigned request, FlatPtr arg)
{
auto description = fds().file_description(fd);
if (!description)
return EBADF;
if (request == FIONBIO) {
description->set_blocking(arg == 0);
return KSuccess;
}
return description->file().ioctl(*description, request, arg);
}
}