[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;

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);
typedef enum lttng_error_code (*condition_mi_serialize_cb)(
		const struct lttng_condition *condition,
		struct mi_writer *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	typedef void (condition_destroy_cb)(struct lttng_condition condition);
	27	typedef bool (condition_validate_cb)(const struct lttng_condition condition);
	28	typedef int (*condition_serialize_cb)(
	29	const struct lttng_condition *condition,
	30	struct lttng_payload *payload);
	31	typedef bool (condition_equal_cb)(const struct lttng_condition a,
	32	const struct lttng_condition *b);
	33	typedef ssize_t (*condition_create_from_payload_cb)(
	34	struct lttng_payload_view *view,
	35	struct lttng_condition **condition);
	36	typedef enum lttng_error_code (*condition_mi_serialize_cb)(
	37	const struct lttng_condition *condition,
	38	struct mi_writer *writer);
	39
	40	struct lttng_condition {
	41	/* Reference counting is only exposed to internal users. */
	42	struct urcu_ref ref;
	43	enum lttng_condition_type type;
	44	condition_validate_cb validate;
	45	condition_serialize_cb serialize;
	46	condition_equal_cb equal;
	47	condition_destroy_cb destroy;
	48	condition_mi_serialize_cb mi_serialize;
	49	};
	50
	51	struct lttng_condition_comm {
	52	/* enum lttng_condition_type */
	53	int8_t condition_type;
	54	char payload[];
	55	};
	56
	57	void lttng_condition_get(struct lttng_condition *condition);
	58
	59	void lttng_condition_put(struct lttng_condition *condition);
	60
	61	void lttng_condition_init(struct lttng_condition *condition,
	62	enum lttng_condition_type type);
	63
	64	bool lttng_condition_validate(const struct lttng_condition *condition);
	65
	66	ssize_t lttng_condition_create_from_payload(
	67	struct lttng_payload_view *view,
	68	struct lttng_condition **condition);
	69
	70	int lttng_condition_serialize(const struct lttng_condition *condition,
	71	struct lttng_payload *payload);
	72
	73	bool lttng_condition_is_equal(const struct lttng_condition *a,
	74	const struct lttng_condition *b);
	75
	76	enum lttng_error_code lttng_condition_mi_serialize(
	77	const struct lttng_trigger *trigger,
	78	const struct lttng_condition *condition,
	79	struct mi_writer *writer,
	80	const struct mi_lttng_error_query_callbacks
	81	*error_query_callbacks);
	82
	83	const char *lttng_condition_type_str(enum lttng_condition_type type);
	84
	85	#endif /* LTTNG_CONDITION_INTERNAL_H */