#ifndef KERNEL_WORK_H_
#define KERNEL_WORK_H_

#include <kernel/locks.h>
#include <kernel/queue.h>
#include <stddef.h>

struct work_item;

typedef void (*work_func_t)(struct work_item *);

struct work_item {
	void *w_data;
	work_func_t w_func;
	struct queue_entry w_head;
};

struct worker_pool {
	struct thread **wp_workers;
	size_t wp_nworkers;
};

struct workqueue {
	spin_lock_t wq_lock;
	struct queue wq_queue; /* list of struct work_item */
};

extern void work_item_init(work_func_t func, void *data, struct work_item *out);
extern void workqueue_init(struct workqueue *wq);
extern struct worker_pool *worker_pool_create(size_t nworkers);
extern struct worker_pool *global_worker_pool(void);
extern bool schedule_work_on(struct workqueue *wq, struct work_item *work);
extern bool schedule_work(struct work_item *work);

extern void wake_workers(struct workqueue *wq, struct worker_pool *pool);

#endif