[fio.git] / workqueue.h

#ifndef FIO_RATE_H
#define FIO_RATE_H

#include <inttypes.h>
#include <pthread.h>

#include "flist.h"
#include "lib/types.h"

struct sk_out;
struct thread_data;

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 *priv;
	struct sk_out *sk_out;
};

typedef int (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 *);
typedef void (workqueue_exit_worker_fn)(struct submit_worker *, unsigned int *);
typedef void (workqueue_update_acct_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_update_acct_fn *update_acct_fn;

	workqueue_alloc_worker_fn *alloc_worker_fn;
	workqueue_free_worker_fn *free_worker_fn;

	workqueue_init_worker_fn *init_worker_fn;
	workqueue_exit_worker_fn *exit_worker_fn;

	unsigned int nice;
};

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, struct sk_out *sk_out);
void workqueue_exit(struct workqueue *wq);

void 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);
}

static inline void workqueue_exit_worker(struct submit_worker *sw,
					 unsigned int *sum_cnt)
{
	struct workqueue *wq = sw->wq;
	unsigned int tmp = 1;

	if (!wq->ops.exit_worker_fn)
		return;

	if (!sum_cnt)
		sum_cnt = &tmp;

	wq->ops.exit_worker_fn(sw, sum_cnt);
}
#endif
Commit	Line	Data
	1	#ifndef FIO_RATE_H
	2	#define FIO_RATE_H
	3
	4	#include <inttypes.h>
	5	#include <pthread.h>
	6
	7	#include "flist.h"
	8	#include "lib/types.h"
	9
	10	struct sk_out;
	11	struct thread_data;
	12
	13	struct workqueue_work {
	14	struct flist_head list;
	15	};
	16
	17	struct submit_worker {
	18	pthread_t thread;
	19	pthread_mutex_t lock;
	20	pthread_cond_t cond;
	21	struct flist_head work_list;
	22	unsigned int flags;
	23	unsigned int index;
	24	uint64_t seq;
	25	struct workqueue *wq;
	26	void *priv;
	27	struct sk_out *sk_out;
	28	};
	29
	30	typedef int (workqueue_work_fn)(struct submit_worker , struct workqueue_work );
	31	typedef bool (workqueue_pre_sleep_flush_fn)(struct submit_worker *);
	32	typedef void (workqueue_pre_sleep_fn)(struct submit_worker *);
	33	typedef int (workqueue_alloc_worker_fn)(struct submit_worker *);
	34	typedef void (workqueue_free_worker_fn)(struct submit_worker *);
	35	typedef int (workqueue_init_worker_fn)(struct submit_worker *);
	36	typedef void (workqueue_exit_worker_fn)(struct submit_worker , unsigned int );
	37	typedef void (workqueue_update_acct_fn)(struct submit_worker *);
	38
	39	struct workqueue_ops {
	40	workqueue_work_fn *fn;
	41	workqueue_pre_sleep_flush_fn *pre_sleep_flush_fn;
	42	workqueue_pre_sleep_fn *pre_sleep_fn;
	43
	44	workqueue_update_acct_fn *update_acct_fn;
	45
	46	workqueue_alloc_worker_fn *alloc_worker_fn;
	47	workqueue_free_worker_fn *free_worker_fn;
	48
	49	workqueue_init_worker_fn *init_worker_fn;
	50	workqueue_exit_worker_fn *exit_worker_fn;
	51
	52	unsigned int nice;
	53	};
	54
	55	struct workqueue {
	56	unsigned int max_workers;
	57
	58	struct thread_data *td;
	59	struct workqueue_ops ops;
	60
	61	uint64_t work_seq;
	62	struct submit_worker *workers;
	63	unsigned int next_free_worker;
	64
	65	pthread_cond_t flush_cond;
	66	pthread_mutex_t flush_lock;
	67	pthread_mutex_t stat_lock;
	68	volatile int wake_idle;
	69	};
	70
	71	int workqueue_init(struct thread_data td, struct workqueue wq, struct workqueue_ops ops, unsigned int max_workers, struct sk_out sk_out);
	72	void workqueue_exit(struct workqueue *wq);
	73
	74	void workqueue_enqueue(struct workqueue wq, struct workqueue_work work);
	75	void workqueue_flush(struct workqueue *wq);
	76
	77	static inline bool workqueue_pre_sleep_check(struct submit_worker *sw)
	78	{
	79	struct workqueue *wq = sw->wq;
	80
	81	if (!wq->ops.pre_sleep_flush_fn)
	82	return false;
	83
	84	return wq->ops.pre_sleep_flush_fn(sw);
	85	}
	86
	87	static inline void workqueue_pre_sleep(struct submit_worker *sw)
	88	{
	89	struct workqueue *wq = sw->wq;
	90
	91	if (wq->ops.pre_sleep_fn)
	92	wq->ops.pre_sleep_fn(sw);
	93	}
	94
	95	static inline int workqueue_init_worker(struct submit_worker *sw)
	96	{
	97	struct workqueue *wq = sw->wq;
	98
	99	if (!wq->ops.init_worker_fn)
	100	return 0;
	101
	102	return wq->ops.init_worker_fn(sw);
	103	}
	104
	105	static inline void workqueue_exit_worker(struct submit_worker *sw,
	106	unsigned int *sum_cnt)
	107	{
	108	struct workqueue *wq = sw->wq;
	109	unsigned int tmp = 1;
	110
	111	if (!wq->ops.exit_worker_fn)
	112	return;
	113
	114	if (!sum_cnt)
	115	sum_cnt = &tmp;
	116
	117	wq->ops.exit_worker_fn(sw, sum_cnt);
	118	}
	119	#endif