jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#include <Kernel/Process.h>
8
9namespace Kernel {
10
11ErrorOr<FlatPtr> Process::sys$disown(ProcessID pid)
12{
13 VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
14 TRY(require_promise(Pledge::proc));
15 auto process = Process::from_pid_in_same_jail(pid);
16 if (!process)
17 return ESRCH;
18 if (process->ppid() != this->pid())
19 return ECHILD;
20 process->with_mutable_protected_data([](auto& protected_data) {
21 protected_data.ppid = 0;
22 });
23 process->disowned_by_waiter(*this);
24 return 0;
25}
26}