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https://github.com/SerenityOS/serenity
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11eee67b85
Until now, our kernel has reimplemented a number of AK classes to provide automatic internal locking: - RefPtr - NonnullRefPtr - WeakPtr - Weakable This patch renames the Kernel classes so that they can coexist with the original AK classes: - RefPtr => LockRefPtr - NonnullRefPtr => NonnullLockRefPtr - WeakPtr => LockWeakPtr - Weakable => LockWeakable The goal here is to eventually get rid of the Lock* classes in favor of using external locking.
70 lines
1.6 KiB
C++
70 lines
1.6 KiB
C++
/*
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* Copyright (c) 2021, the SerenityOS developers.
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* Copyright (c) 2021, 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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#pragma once
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#include <AK/Error.h>
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#include <AK/IntrusiveList.h>
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#include <Kernel/Forward.h>
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#include <Kernel/Locking/SpinlockProtected.h>
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#include <Kernel/WaitQueue.h>
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namespace Kernel {
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extern WorkQueue* g_io_work;
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extern WorkQueue* g_ata_work;
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class WorkQueue {
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AK_MAKE_NONCOPYABLE(WorkQueue);
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AK_MAKE_NONMOVABLE(WorkQueue);
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public:
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static void initialize();
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ErrorOr<void> try_queue(void (*function)(void*), void* data = nullptr, void (*free_data)(void*) = nullptr)
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{
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auto item = new (nothrow) WorkItem; // TODO: use a pool
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if (!item)
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return Error::from_errno(ENOMEM);
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item->function = [function, data, free_data] {
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function(data);
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if (free_data)
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free_data(data);
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};
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do_queue(*item);
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return {};
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}
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template<typename Function>
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ErrorOr<void> try_queue(Function function)
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{
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auto item = new (nothrow) WorkItem; // TODO: use a pool
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if (!item)
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return Error::from_errno(ENOMEM);
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item->function = Function(function);
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do_queue(*item);
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return {};
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}
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private:
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explicit WorkQueue(StringView);
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struct WorkItem {
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public:
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IntrusiveListNode<WorkItem> m_node;
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Function<void()> function;
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};
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void do_queue(WorkItem&);
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LockRefPtr<Thread> m_thread;
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WaitQueue m_wait_queue;
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SpinlockProtected<IntrusiveList<&WorkItem::m_node>> m_items { LockRank::None };
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};
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}
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