ladybird/Kernel/ProcessGroup.h

49 lines
1.1 KiB
C++

/*
* Copyright (c) 2020, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/IntrusiveList.h>
#include <AK/RefCounted.h>
#include <AK/Weakable.h>
#include <Kernel/Locking/SpinLockProtectedValue.h>
#include <Kernel/UnixTypes.h>
namespace Kernel {
class ProcessGroup
: public RefCounted<ProcessGroup>
, public Weakable<ProcessGroup> {
AK_MAKE_NONMOVABLE(ProcessGroup);
AK_MAKE_NONCOPYABLE(ProcessGroup);
public:
~ProcessGroup();
static RefPtr<ProcessGroup> create(ProcessGroupID);
static RefPtr<ProcessGroup> find_or_create(ProcessGroupID);
static RefPtr<ProcessGroup> from_pgid(ProcessGroupID);
const ProcessGroupID& pgid() const { return m_pgid; }
private:
ProcessGroup(ProcessGroupID pgid)
: m_pgid(pgid)
{
}
IntrusiveListNode<ProcessGroup> m_list_node;
ProcessGroupID m_pgid;
public:
using List = IntrusiveList<ProcessGroup, RawPtr<ProcessGroup>, &ProcessGroup::m_list_node>;
};
SpinLockProtectedValue<ProcessGroup::List>& process_groups();
}