[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 <common/macros.h>
#include <common/payload-view.h>
#include <common/payload.h>
#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>

#if defined(__cplusplus)
extern "C" {
#endif

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);

#if defined(__cplusplus)
}
#endif

#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.h>
	12	#include <common/payload-view.h>
	13	#include <common/payload.h>
	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	#if defined(__cplusplus)
	23	extern "C" {
	24	#endif
	25
	26	struct mi_writer;
	27	struct mi_lttng_error_query_callbacks;
	28	struct lttng_trigger;
	29
	30	typedef void (condition_destroy_cb)(struct lttng_condition condition);
	31	typedef bool (condition_validate_cb)(const struct lttng_condition condition);
	32	typedef int (*condition_serialize_cb)(
	33	const struct lttng_condition *condition,
	34	struct lttng_payload *payload);
	35	typedef bool (condition_equal_cb)(const struct lttng_condition a,
	36	const struct lttng_condition *b);
	37	typedef ssize_t (*condition_create_from_payload_cb)(
	38	struct lttng_payload_view *view,
	39	struct lttng_condition **condition);
	40	typedef enum lttng_error_code (*condition_mi_serialize_cb)(
	41	const struct lttng_condition *condition,
	42	struct mi_writer *writer);
	43
	44	struct lttng_condition {
	45	/* Reference counting is only exposed to internal users. */
	46	struct urcu_ref ref;
	47	enum lttng_condition_type type;
	48	condition_validate_cb validate;
	49	condition_serialize_cb serialize;
	50	condition_equal_cb equal;
	51	condition_destroy_cb destroy;
	52	condition_mi_serialize_cb mi_serialize;
	53	};
	54
	55	struct lttng_condition_comm {
	56	/* enum lttng_condition_type */
	57	int8_t condition_type;
	58	char payload[];
	59	};
	60
	61	void lttng_condition_get(struct lttng_condition *condition);
	62
	63	void lttng_condition_put(struct lttng_condition *condition);
	64
	65	void lttng_condition_init(struct lttng_condition *condition,
	66	enum lttng_condition_type type);
	67
	68	bool lttng_condition_validate(const struct lttng_condition *condition);
	69
	70	ssize_t lttng_condition_create_from_payload(
	71	struct lttng_payload_view *view,
	72	struct lttng_condition **condition);
	73
	74	int lttng_condition_serialize(const struct lttng_condition *condition,
	75	struct lttng_payload *payload);
	76
	77	bool lttng_condition_is_equal(const struct lttng_condition *a,
	78	const struct lttng_condition *b);
	79
	80	enum lttng_error_code lttng_condition_mi_serialize(
	81	const struct lttng_trigger *trigger,
	82	const struct lttng_condition *condition,
	83	struct mi_writer *writer,
	84	const struct mi_lttng_error_query_callbacks
	85	*error_query_callbacks);
	86
	87	const char *lttng_condition_type_str(enum lttng_condition_type type);
	88
	89	#if defined(__cplusplus)
	90	}
	91	#endif
	92
	93	#endif /* LTTNG_CONDITION_INTERNAL_H */