mirror of
https://github.com/SerenityOS/serenity
synced 2024-07-09 10:00:46 +00:00
51 lines
1.2 KiB
C++
51 lines
1.2 KiB
C++
/*
|
|
* Copyright (c) 2020-2023, the SerenityOS developers.
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/IntrusiveList.h>
|
|
#include <AK/RefPtr.h>
|
|
#include <Kernel/Forward.h>
|
|
#include <Kernel/Library/ListedRefCounted.h>
|
|
#include <Kernel/Library/LockWeakable.h>
|
|
#include <Kernel/Locking/SpinlockProtected.h>
|
|
#include <Kernel/UnixTypes.h>
|
|
|
|
namespace Kernel {
|
|
|
|
class ProcessGroup
|
|
: public ListedRefCounted<ProcessGroup, LockType::Spinlock>
|
|
, public LockWeakable<ProcessGroup> {
|
|
|
|
AK_MAKE_NONMOVABLE(ProcessGroup);
|
|
AK_MAKE_NONCOPYABLE(ProcessGroup);
|
|
|
|
public:
|
|
~ProcessGroup();
|
|
|
|
static ErrorOr<NonnullRefPtr<ProcessGroup>> create_if_unused_pgid(ProcessGroupID);
|
|
static ErrorOr<NonnullRefPtr<ProcessGroup>> find_or_create(ProcessGroupID);
|
|
static RefPtr<ProcessGroup> from_pgid(ProcessGroupID);
|
|
|
|
ProcessGroupID const& pgid() const { return m_pgid; }
|
|
|
|
private:
|
|
ProcessGroup(ProcessGroupID pgid)
|
|
: m_pgid(pgid)
|
|
{
|
|
}
|
|
|
|
ProcessGroupID m_pgid;
|
|
|
|
mutable IntrusiveListNode<ProcessGroup> m_list_node;
|
|
|
|
public:
|
|
using AllInstancesList = IntrusiveList<&ProcessGroup::m_list_node>;
|
|
static SpinlockProtected<AllInstancesList, LockRank::None>& all_instances();
|
|
};
|
|
|
|
}
|