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ac85fdeb1c
- Rename create* => try_create* - Don't null out existing process group on allocation failure
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 RefPtr<ProcessGroup> try_create(ProcessGroupID);
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static RefPtr<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, RawPtr<ProcessGroup>, &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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