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/*
* Copyright (c) 2021, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/IntrusiveList.h>
#include <Kernel/Forward.h>
namespace Kernel {
extern WorkQueue* g_io_work;
class WorkQueue {
AK_MAKE_NONCOPYABLE(WorkQueue);
AK_MAKE_NONMOVABLE(WorkQueue);
public:
static void initialize();
WorkQueue(const char*);
void queue(void (*function)(void*), void* data = nullptr, void (*free_data)(void*) = nullptr)
{
auto* item = new WorkItem; // TODO: use a pool
item->function = [function, data, free_data] {
function(data);
if (free_data)
free_data(data);
};
do_queue(item);
}
template<typename Function>
void queue(Function function)
{
auto* item = new WorkItem; // TODO: use a pool
item->function = Function(function);
do_queue(item);
}
private:
struct WorkItem {
IntrusiveListNode<WorkItem> m_node;
Function<void()> function;
};
void do_queue(WorkItem*);
RefPtr<Thread> m_thread;
WaitQueue m_wait_queue;
IntrusiveList<WorkItem, RawPtr<WorkItem>, &WorkItem::m_node> m_items;
SpinLock<u8> m_lock;
};
}
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