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

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

struct mi_writer;
struct mi_lttng_error_query_callbacks;
struct lttng_trigger;

using condition_destroy_cb = void (*)(struct lttng_condition *);
using condition_validate_cb = bool (*)(const struct lttng_condition *);
using condition_serialize_cb = int (*)(const struct lttng_condition *, struct lttng_payload *);
using condition_equal_cb = bool (*)(const struct lttng_condition *, const struct lttng_condition *);
using condition_create_from_payload_cb = ssize_t (*)(struct lttng_payload_view *,
						     struct lttng_condition **);
using condition_mi_serialize_cb = enum lttng_error_code (*)(const struct lttng_condition *,
							    struct mi_writer *);

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;
	condition_mi_serialize_cb mi_serialize;
};

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

void lttng_condition_get(struct lttng_condition *condition);

void lttng_condition_put(struct lttng_condition *condition);

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

bool lttng_condition_validate(const struct lttng_condition *condition);

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

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

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

enum lttng_error_code lttng_condition_mi_serialize(
		const struct lttng_trigger *trigger,
		const struct lttng_condition *condition,
		struct mi_writer *writer,
		const struct mi_lttng_error_query_callbacks
				*error_query_callbacks);

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 <common/macros.hpp>
	12	#include <common/payload-view.hpp>
	13	#include <common/payload.hpp>
	14	#include <lttng/condition/condition.h>
	15	#include <lttng/lttng-error.h>
	16	#include <stdbool.h>
	17	#include <stdint.h>
	18	#include <sys/types.h>
	19	#include <urcu/list.h>
	20	#include <urcu/ref.h>
	21
	22	struct mi_writer;
	23	struct mi_lttng_error_query_callbacks;
	24	struct lttng_trigger;
	25
	26	using condition_destroy_cb = void ()(struct lttng_condition );
	27	using condition_validate_cb = bool ()(const struct lttng_condition );
	28	using condition_serialize_cb = int ()(const struct lttng_condition , struct lttng_payload *);
	29	using condition_equal_cb = bool ()(const struct lttng_condition , const struct lttng_condition *);
	30	using condition_create_from_payload_cb = ssize_t ()(struct lttng_payload_view ,
	31	struct lttng_condition **);
	32	using condition_mi_serialize_cb = enum lttng_error_code ()(const struct lttng_condition ,
	33	struct mi_writer *);
	34
	35	struct lttng_condition {
	36	/* Reference counting is only exposed to internal users. */
	37	struct urcu_ref ref;
	38	enum lttng_condition_type type;
	39	condition_validate_cb validate;
	40	condition_serialize_cb serialize;
	41	condition_equal_cb equal;
	42	condition_destroy_cb destroy;
	43	condition_mi_serialize_cb mi_serialize;
	44	};
	45
	46	struct lttng_condition_comm {
	47	/* enum lttng_condition_type */
	48	int8_t condition_type;
	49	char payload[];
	50	};
	51
	52	void lttng_condition_get(struct lttng_condition *condition);
	53
	54	void lttng_condition_put(struct lttng_condition *condition);
	55
	56	void lttng_condition_init(struct lttng_condition *condition,
	57	enum lttng_condition_type type);
	58
	59	bool lttng_condition_validate(const struct lttng_condition *condition);
	60
	61	ssize_t lttng_condition_create_from_payload(
	62	struct lttng_payload_view *view,
	63	struct lttng_condition **condition);
	64
	65	int lttng_condition_serialize(const struct lttng_condition *condition,
	66	struct lttng_payload *payload);
	67
	68	bool lttng_condition_is_equal(const struct lttng_condition *a,
	69	const struct lttng_condition *b);
	70
	71	enum lttng_error_code lttng_condition_mi_serialize(
	72	const struct lttng_trigger *trigger,
	73	const struct lttng_condition *condition,
	74	struct mi_writer *writer,
	75	const struct mi_lttng_error_query_callbacks
	76	*error_query_callbacks);
	77
	78	const char *lttng_condition_type_str(enum lttng_condition_type type);
	79
	80	#endif /* LTTNG_CONDITION_INTERNAL_H */