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79fa9765ca
We now use AK::Error and AK::ErrorOr<T> in both kernel and userspace! This was a slightly tedious refactoring that took a long time, so it's not unlikely that some bugs crept in. Nevertheless, it does pass basic functionality testing, and it's just real nice to finally see the same pattern in all contexts. :^)
48 lines
1 KiB
C++
48 lines
1 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/IntrusiveList.h>
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#include <AK/RefCounted.h>
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#include <AK/Weakable.h>
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#include <Kernel/Locking/SpinlockProtected.h>
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#include <Kernel/UnixTypes.h>
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namespace Kernel {
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class ProcessGroup
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: public RefCounted<ProcessGroup>
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, public Weakable<ProcessGroup> {
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AK_MAKE_NONMOVABLE(ProcessGroup);
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AK_MAKE_NONCOPYABLE(ProcessGroup);
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public:
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~ProcessGroup();
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static ErrorOr<NonnullRefPtr<ProcessGroup>> try_create(ProcessGroupID);
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static ErrorOr<NonnullRefPtr<ProcessGroup>> try_find_or_create(ProcessGroupID);
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static RefPtr<ProcessGroup> from_pgid(ProcessGroupID);
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const ProcessGroupID& pgid() const { return m_pgid; }
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private:
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ProcessGroup(ProcessGroupID pgid)
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: m_pgid(pgid)
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{
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}
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IntrusiveListNode<ProcessGroup> m_list_node;
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ProcessGroupID m_pgid;
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public:
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using List = IntrusiveList<&ProcessGroup::m_list_node>;
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};
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SpinlockProtected<ProcessGroup::List>& process_groups();
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}
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