[lttng-tools.git] / src / bin / lttng-sessiond / tracker.h

/*
 * Copyright (C) 2018 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * SPDX-License-Identifier: GPL-2.0-only
 *
 */

#ifndef _LTT_TRACKER_H
#define _LTT_TRACKER_H

#include <lttng/tracker.h>
#include <urcu.h>
#include <urcu/list.h>
#include <urcu/rculfhash.h>

enum lttng_tracker_list_state {
	LTTNG_TRACK_ALL,
	LTTNG_TRACK_NONE,
	LTTNG_TRACK_LIST,
};

/* Tracker ID */
struct lttng_tracker_list_node {
	struct lttng_tracker_id *id;

	struct cds_list_head list_node;
	struct cds_lfht_node ht_node;
	struct rcu_head rcu_head;
};

struct lttng_tracker_list {
	struct cds_list_head list_head;
	/* Hash table for O(1) removal lookup. */
	struct cds_lfht *ht;
	enum lttng_tracker_list_state state;
};

struct lttng_tracker_list *lttng_tracker_list_create(void);
void lttng_tracker_list_destroy(struct lttng_tracker_list *tracker_list);

int lttng_tracker_list_add(struct lttng_tracker_list *tracker_list,
		const struct lttng_tracker_id *id);
int lttng_tracker_list_remove(struct lttng_tracker_list *tracker_list,
		const struct lttng_tracker_id *id);

int lttng_tracker_id_lookup_string(enum lttng_tracker_type tracker_type,
		const struct lttng_tracker_id *id,
		int *result);
int lttng_tracker_id_get_list(const struct lttng_tracker_list *tracker_list,
		struct lttng_tracker_ids **_ids);
int lttng_tracker_id_set_list(struct lttng_tracker_list *tracker_list,
		const struct lttng_tracker_ids *_ids);

#endif /* _LTT_TRACKER_H */
Commit	Line	Data
a8c3ad3e	1	/*
ab5be9fa	2	* Copyright (C) 2018 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
a8c3ad3e	3	*
ab5be9fa	4	* SPDX-License-Identifier: GPL-2.0-only
a8c3ad3e	5	*
a8c3ad3e MD	6	*/
a8c3ad3e MD	7
ab5be9fa MJ	8	#ifndef _LTT_TRACKER_H
	9	#define _LTT_TRACKER_H
	10
2d97a006	11	#include <lttng/tracker.h>
a8c3ad3e MD	12	#include <urcu.h>
	13	#include <urcu/list.h>
	14	#include <urcu/rculfhash.h>
	15
	16	enum lttng_tracker_list_state {
	17	LTTNG_TRACK_ALL,
	18	LTTNG_TRACK_NONE,
	19	LTTNG_TRACK_LIST,
	20	};
	21
	22	/* Tracker ID */
	23	struct lttng_tracker_list_node {
2d97a006	24	struct lttng_tracker_id *id;
a8c3ad3e MD	25
	26	struct cds_list_head list_node;
	27	struct cds_lfht_node ht_node;
	28	struct rcu_head rcu_head;
	29	};
	30
	31	struct lttng_tracker_list {
	32	struct cds_list_head list_head;
	33	/* Hash table for O(1) removal lookup. */
	34	struct cds_lfht *ht;
	35	enum lttng_tracker_list_state state;
	36	};
	37
	38	struct lttng_tracker_list *lttng_tracker_list_create(void);
	39	void lttng_tracker_list_destroy(struct lttng_tracker_list *tracker_list);
	40
	41	int lttng_tracker_list_add(struct lttng_tracker_list *tracker_list,
	42	const struct lttng_tracker_id *id);
	43	int lttng_tracker_list_remove(struct lttng_tracker_list *tracker_list,
	44	const struct lttng_tracker_id *id);
	45
	46	int lttng_tracker_id_lookup_string(enum lttng_tracker_type tracker_type,
	47	const struct lttng_tracker_id *id,
	48	int *result);
a7a533cd JR	49	int lttng_tracker_id_get_list(const struct lttng_tracker_list *tracker_list,
a7a533cd JR	50	struct lttng_tracker_ids **_ids);
a8c3ad3e	51	int lttng_tracker_id_set_list(struct lttng_tracker_list *tracker_list,
a7a533cd	52	const struct lttng_tracker_ids *_ids);
a8c3ad3e MD	53
a8c3ad3e MD	54	#endif /* _LTT_TRACKER_H */