mirror of
https://github.com/SerenityOS/serenity
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28 lines
682 B
C++
28 lines
682 B
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <Kernel/Tasks/Process.h>
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namespace Kernel {
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ErrorOr<FlatPtr> Process::sys$disown(ProcessID pid)
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{
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VERIFY_NO_PROCESS_BIG_LOCK(this);
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TRY(require_promise(Pledge::proc));
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auto process = Process::from_pid_in_same_jail(pid);
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if (!process)
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return ESRCH;
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TRY(process->with_mutable_protected_data([this](auto& protected_data) -> ErrorOr<void> {
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if (protected_data.ppid != this->pid())
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return ECHILD;
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protected_data.ppid = 0;
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return {};
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}));
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process->disowned_by_waiter(*this);
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return 0;
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}
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}
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