[lttng-tools.git] / include / lttng / condition / condition-internal.h

/*
 * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
 *
 * SPDX-License-Identifier: LGPL-2.1-only
 *
 */

#ifndef LTTNG_CONDITION_INTERNAL_H
#define LTTNG_CONDITION_INTERNAL_H

#include <lttng/condition/condition.h>
#include <common/macros.h>
#include <common/payload-view.h>
#include <common/payload.h>
#include <stdbool.h>
#include <urcu/list.h>
#include <urcu/ref.h>
#include <stdint.h>
#include <sys/types.h>

typedef void (*condition_destroy_cb)(struct lttng_condition *condition);
typedef bool (*condition_validate_cb)(const struct lttng_condition *condition);
typedef int (*condition_serialize_cb)(
		const struct lttng_condition *condition,
		struct lttng_payload *payload);
typedef bool (*condition_equal_cb)(const struct lttng_condition *a,
		const struct lttng_condition *b);
typedef ssize_t (*condition_create_from_payload_cb)(
		struct lttng_payload_view *view,
		struct lttng_condition **condition);

struct lttng_condition {
	/* Reference counting is only exposed to internal users. */
	struct urcu_ref ref;
	enum lttng_condition_type type;
	condition_validate_cb validate;
	condition_serialize_cb serialize;
	condition_equal_cb equal;
	condition_destroy_cb destroy;
};

struct lttng_condition_comm {
	/* enum lttng_condition_type */
	int8_t condition_type;
	char payload[];
};

LTTNG_HIDDEN
void lttng_condition_get(struct lttng_condition *condition);

LTTNG_HIDDEN
void lttng_condition_put(struct lttng_condition *condition);

LTTNG_HIDDEN
void lttng_condition_init(struct lttng_condition *condition,
		enum lttng_condition_type type);

LTTNG_HIDDEN
bool lttng_condition_validate(const struct lttng_condition *condition);

LTTNG_HIDDEN
ssize_t lttng_condition_create_from_payload(
		struct lttng_payload_view *view,
		struct lttng_condition **condition);

LTTNG_HIDDEN
int lttng_condition_serialize(const struct lttng_condition *condition,
		struct lttng_payload *payload);

LTTNG_HIDDEN
bool lttng_condition_is_equal(const struct lttng_condition *a,
		const struct lttng_condition *b);

LTTNG_HIDDEN
const char *lttng_condition_type_str(enum lttng_condition_type type);

#endif /* LTTNG_CONDITION_INTERNAL_H */
Commit	Line	Data
	1	/*
	2	* Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
	3	*
	4	* SPDX-License-Identifier: LGPL-2.1-only
	5	*
	6	*/
	7
	8	#ifndef LTTNG_CONDITION_INTERNAL_H
	9	#define LTTNG_CONDITION_INTERNAL_H
	10
	11	#include <lttng/condition/condition.h>
	12	#include <common/macros.h>
	13	#include <common/payload-view.h>
	14	#include <common/payload.h>
	15	#include <stdbool.h>
	16	#include <urcu/list.h>
	17	#include <urcu/ref.h>
	18	#include <stdint.h>
	19	#include <sys/types.h>
	20
	21	typedef void (condition_destroy_cb)(struct lttng_condition condition);
	22	typedef bool (condition_validate_cb)(const struct lttng_condition condition);
	23	typedef int (*condition_serialize_cb)(
	24	const struct lttng_condition *condition,
	25	struct lttng_payload *payload);
	26	typedef bool (condition_equal_cb)(const struct lttng_condition a,
	27	const struct lttng_condition *b);
	28	typedef ssize_t (*condition_create_from_payload_cb)(
	29	struct lttng_payload_view *view,
	30	struct lttng_condition **condition);
	31
	32	struct lttng_condition {
	33	/* Reference counting is only exposed to internal users. */
	34	struct urcu_ref ref;
	35	enum lttng_condition_type type;
	36	condition_validate_cb validate;
	37	condition_serialize_cb serialize;
	38	condition_equal_cb equal;
	39	condition_destroy_cb destroy;
	40	};
	41
	42	struct lttng_condition_comm {
	43	/* enum lttng_condition_type */
	44	int8_t condition_type;
	45	char payload[];
	46	};
	47
	48	LTTNG_HIDDEN
	49	void lttng_condition_get(struct lttng_condition *condition);
	50
	51	LTTNG_HIDDEN
	52	void lttng_condition_put(struct lttng_condition *condition);
	53
	54	LTTNG_HIDDEN
	55	void lttng_condition_init(struct lttng_condition *condition,
	56	enum lttng_condition_type type);
	57
	58	LTTNG_HIDDEN
	59	bool lttng_condition_validate(const struct lttng_condition *condition);
	60
	61	LTTNG_HIDDEN
	62	ssize_t lttng_condition_create_from_payload(
	63	struct lttng_payload_view *view,
	64	struct lttng_condition **condition);
	65
	66	LTTNG_HIDDEN
	67	int lttng_condition_serialize(const struct lttng_condition *condition,
	68	struct lttng_payload *payload);
	69
	70	LTTNG_HIDDEN
	71	bool lttng_condition_is_equal(const struct lttng_condition *a,
	72	const struct lttng_condition *b);
	73
	74	LTTNG_HIDDEN
	75	const char *lttng_condition_type_str(enum lttng_condition_type type);
	76
	77	#endif /* LTTNG_CONDITION_INTERNAL_H */