[fio.git] / workqueue.h

#ifndef FIO_RATE_H
#define FIO_RATE_H

#include "flist.h"

struct workqueue_work {
	struct flist_head list;
};

struct submit_worker {
	pthread_t thread;
	pthread_mutex_t lock;
	pthread_cond_t cond;
	struct flist_head work_list;
	unsigned int flags;
	unsigned int index;
	uint64_t seq;
	struct workqueue *wq;
	void *private;
};

typedef void (workqueue_work_fn)(struct submit_worker *, struct workqueue_work *);
typedef bool (workqueue_pre_sleep_flush_fn)(struct submit_worker *);
typedef void (workqueue_pre_sleep_fn)(struct submit_worker *);
typedef int (workqueue_alloc_worker_fn)(struct submit_worker *);
typedef void (workqueue_free_worker_fn)(struct submit_worker *);
typedef int (workqueue_init_worker_fn)(struct submit_worker *);

struct workqueue_ops {
	workqueue_work_fn *fn;
	workqueue_pre_sleep_flush_fn *pre_sleep_flush_fn;
	workqueue_pre_sleep_fn *pre_sleep_fn;
	workqueue_alloc_worker_fn *alloc_worker_fn;
	workqueue_free_worker_fn *free_worker_fn;
	workqueue_init_worker_fn *init_worker_fn;
};

struct workqueue {
	unsigned int max_workers;

	struct thread_data *td;
	struct workqueue_ops ops;

	uint64_t work_seq;
	struct submit_worker *workers;
	unsigned int next_free_worker;

	pthread_cond_t flush_cond;
	pthread_mutex_t flush_lock;
	pthread_mutex_t stat_lock;
	volatile int wake_idle;
};

int workqueue_init(struct thread_data *td, struct workqueue *wq, struct workqueue_ops *ops, unsigned int max_workers);
void workqueue_exit(struct workqueue *wq);

bool workqueue_enqueue(struct workqueue *wq, struct workqueue_work *work);
void workqueue_flush(struct workqueue *wq);

static inline bool workqueue_pre_sleep_check(struct submit_worker *sw)
{
	struct workqueue *wq = sw->wq;

	if (!wq->ops.pre_sleep_flush_fn)
		return false;

	return wq->ops.pre_sleep_flush_fn(sw);
}

static inline void workqueue_pre_sleep(struct submit_worker *sw)
{
	struct workqueue *wq = sw->wq;

	if (wq->ops.pre_sleep_fn)
		wq->ops.pre_sleep_fn(sw);
}

static inline int workqueue_init_worker(struct submit_worker *sw)
{
	struct workqueue *wq = sw->wq;

	if (!wq->ops.init_worker_fn)
		return 0;

	return wq->ops.init_worker_fn(sw);
}

#endif
Commit	Line	Data
a9da8ab2 JA	1	#ifndef FIO_RATE_H
	2	#define FIO_RATE_H
	3
	4	#include "flist.h"
	5
88271841 JA	6	struct workqueue_work {
	7	struct flist_head list;
	8	};
	9
ee2b6d6e JA	10	struct submit_worker {
	11	pthread_t thread;
	12	pthread_mutex_t lock;
	13	pthread_cond_t cond;
	14	struct flist_head work_list;
	15	unsigned int flags;
	16	unsigned int index;
	17	uint64_t seq;
	18	struct workqueue *wq;
	19	void *private;
	20	};
	21
	22	typedef void (workqueue_work_fn)(struct submit_worker , struct workqueue_work );
	23	typedef bool (workqueue_pre_sleep_flush_fn)(struct submit_worker *);
	24	typedef void (workqueue_pre_sleep_fn)(struct submit_worker *);
	25	typedef int (workqueue_alloc_worker_fn)(struct submit_worker *);
	26	typedef void (workqueue_free_worker_fn)(struct submit_worker *);
80ea26a8	27	typedef int (workqueue_init_worker_fn)(struct submit_worker *);
5bb79f69 JA	28
	29	struct workqueue_ops {
	30	workqueue_work_fn *fn;
	31	workqueue_pre_sleep_flush_fn *pre_sleep_flush_fn;
	32	workqueue_pre_sleep_fn *pre_sleep_fn;
ee2b6d6e JA	33	workqueue_alloc_worker_fn *alloc_worker_fn;
ee2b6d6e JA	34	workqueue_free_worker_fn *free_worker_fn;
80ea26a8	35	workqueue_init_worker_fn *init_worker_fn;
5bb79f69	36	};
a9da8ab2 JA	37
	38	struct workqueue {
	39	unsigned int max_workers;
	40
	41	struct thread_data *td;
5bb79f69	42	struct workqueue_ops ops;
a9da8ab2 JA	43
	44	uint64_t work_seq;
	45	struct submit_worker *workers;
	46	unsigned int next_free_worker;
	47
	48	pthread_cond_t flush_cond;
	49	pthread_mutex_t flush_lock;
2a274336	50	pthread_mutex_t stat_lock;
a9da8ab2 JA	51	volatile int wake_idle;
	52	};
	53
5bb79f69	54	int workqueue_init(struct thread_data td, struct workqueue wq, struct workqueue_ops *ops, unsigned int max_workers);
a9da8ab2 JA	55	void workqueue_exit(struct workqueue *wq);
a9da8ab2 JA	56
88271841	57	bool workqueue_enqueue(struct workqueue wq, struct workqueue_work work);
a9da8ab2 JA	58	void workqueue_flush(struct workqueue *wq);
a9da8ab2 JA	59
ee2b6d6e	60	static inline bool workqueue_pre_sleep_check(struct submit_worker *sw)
5bb79f69	61	{
ee2b6d6e JA	62	struct workqueue *wq = sw->wq;
ee2b6d6e JA	63
5bb79f69 JA	64	if (!wq->ops.pre_sleep_flush_fn)
	65	return false;
	66
ee2b6d6e	67	return wq->ops.pre_sleep_flush_fn(sw);
5bb79f69 JA	68	}
5bb79f69 JA	69
ee2b6d6e	70	static inline void workqueue_pre_sleep(struct submit_worker *sw)
5bb79f69	71	{
ee2b6d6e JA	72	struct workqueue *wq = sw->wq;
ee2b6d6e JA	73
5bb79f69	74	if (wq->ops.pre_sleep_fn)
ee2b6d6e	75	wq->ops.pre_sleep_fn(sw);
5bb79f69 JA	76	}
5bb79f69 JA	77
80ea26a8 JA	78	static inline int workqueue_init_worker(struct submit_worker *sw)
	79	{
	80	struct workqueue *wq = sw->wq;
	81
	82	if (!wq->ops.init_worker_fn)
	83	return 0;
	84
	85	return wq->ops.init_worker_fn(sw);
	86	}
	87
a9da8ab2	88	#endif