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

/*
 * Copyright (C) 2019 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
 *
 * SPDX-License-Identifier: LGPL-2.1-only
 *
 */

#ifndef LTTNG_CONDITION_EVENT_RULE_MATCHES_INTERNAL_H
#define LTTNG_CONDITION_EVENT_RULE_MATCHES_INTERNAL_H

#include <lttng/condition/condition-internal.hpp>
#include <common/buffer-view.hpp>
#include <common/macros.hpp>
#include <common/optional.hpp>
#include <lttng/condition/evaluation-internal.hpp>
#include <common/dynamic-array.hpp>
#include <lttng/event-field-value.h>

struct lttng_capture_descriptor {
	struct lttng_event_expr *event_expression;
	struct lttng_bytecode *bytecode;
};

struct lttng_condition_event_rule_matches {
	struct lttng_condition parent;
	struct lttng_event_rule *rule;

	/*
	 * Internal use only.
	 * Error accounting counter index.
	 */
	LTTNG_OPTIONAL(uint64_t) error_counter_index;

	/* Array of `struct lttng_capture_descriptor *`. */
	struct lttng_dynamic_pointer_array capture_descriptors;
};

struct lttng_evaluation_event_rule_matches {
	struct lttng_evaluation parent;

	/* MessagePack-encoded captured event field values. */
	struct lttng_dynamic_buffer capture_payload;

	/*
	 * The content of this array event field value is the decoded
	 * version of `capture_payload` above.
	 *
	 * This is a cache: it's not serialized/deserialized in
	 * communications from/to the library and the session daemon.
	 */
	struct lttng_event_field_value *captured_values;
};

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

enum lttng_condition_status
lttng_condition_event_rule_matches_borrow_rule_mutable(
		const struct lttng_condition *condition,
		struct lttng_event_rule **rule);

void lttng_condition_event_rule_matches_set_error_counter_index(
		struct lttng_condition *condition,
		uint64_t error_counter_index);

uint64_t lttng_condition_event_rule_matches_get_error_counter_index(
		const struct lttng_condition *condition);

struct lttng_evaluation *lttng_evaluation_event_rule_matches_create(
		const struct lttng_condition_event_rule_matches *condition,
		const char *capture_payload,
		size_t capture_payload_size,
		bool decode_capture_payload);

ssize_t lttng_evaluation_event_rule_matches_create_from_payload(
		const struct lttng_condition_event_rule_matches *condition,
		struct lttng_payload_view *view,
		struct lttng_evaluation **_evaluation);

enum lttng_error_code
lttng_condition_event_rule_matches_generate_capture_descriptor_bytecode(
		struct lttng_condition *condition);

const struct lttng_bytecode *
lttng_condition_event_rule_matches_get_capture_bytecode_at_index(
		const struct lttng_condition *condition, unsigned int index);

#endif /* LTTNG_CONDITION_EVENT_RULE_MATCHES_INTERNAL_H */
Commit	Line	Data
	1	/*
	2	* Copyright (C) 2019 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
	3	*
	4	* SPDX-License-Identifier: LGPL-2.1-only
	5	*
	6	*/
	7
	8	#ifndef LTTNG_CONDITION_EVENT_RULE_MATCHES_INTERNAL_H
	9	#define LTTNG_CONDITION_EVENT_RULE_MATCHES_INTERNAL_H
	10
	11	#include <lttng/condition/condition-internal.hpp>
	12	#include <common/buffer-view.hpp>
	13	#include <common/macros.hpp>
	14	#include <common/optional.hpp>
	15	#include <lttng/condition/evaluation-internal.hpp>
	16	#include <common/dynamic-array.hpp>
	17	#include <lttng/event-field-value.h>
	18
	19	struct lttng_capture_descriptor {
	20	struct lttng_event_expr *event_expression;
	21	struct lttng_bytecode *bytecode;
	22	};
	23
	24	struct lttng_condition_event_rule_matches {
	25	struct lttng_condition parent;
	26	struct lttng_event_rule *rule;
	27
	28	/*
	29	* Internal use only.
	30	* Error accounting counter index.
	31	*/
	32	LTTNG_OPTIONAL(uint64_t) error_counter_index;
	33
	34	/* Array of `struct lttng_capture_descriptor `. /
	35	struct lttng_dynamic_pointer_array capture_descriptors;
	36	};
	37
	38	struct lttng_evaluation_event_rule_matches {
	39	struct lttng_evaluation parent;
	40
	41	/* MessagePack-encoded captured event field values. */
	42	struct lttng_dynamic_buffer capture_payload;
	43
	44	/*
	45	* The content of this array event field value is the decoded
	46	* version of `capture_payload` above.
	47	*
	48	* This is a cache: it's not serialized/deserialized in
	49	* communications from/to the library and the session daemon.
	50	*/
	51	struct lttng_event_field_value *captured_values;
	52	};
	53
	54	ssize_t lttng_condition_event_rule_matches_create_from_payload(
	55	struct lttng_payload_view *view,
	56	struct lttng_condition **condition);
	57
	58	enum lttng_condition_status
	59	lttng_condition_event_rule_matches_borrow_rule_mutable(
	60	const struct lttng_condition *condition,
	61	struct lttng_event_rule **rule);
	62
	63	void lttng_condition_event_rule_matches_set_error_counter_index(
	64	struct lttng_condition *condition,
	65	uint64_t error_counter_index);
	66
	67	uint64_t lttng_condition_event_rule_matches_get_error_counter_index(
	68	const struct lttng_condition *condition);
	69
	70	struct lttng_evaluation *lttng_evaluation_event_rule_matches_create(
	71	const struct lttng_condition_event_rule_matches *condition,
	72	const char *capture_payload,
	73	size_t capture_payload_size,
	74	bool decode_capture_payload);
	75
	76	ssize_t lttng_evaluation_event_rule_matches_create_from_payload(
	77	const struct lttng_condition_event_rule_matches *condition,
	78	struct lttng_payload_view *view,
	79	struct lttng_evaluation **_evaluation);
	80
	81	enum lttng_error_code
	82	lttng_condition_event_rule_matches_generate_capture_descriptor_bytecode(
	83	struct lttng_condition *condition);
	84
	85	const struct lttng_bytecode *
	86	lttng_condition_event_rule_matches_get_capture_bytecode_at_index(
	87	const struct lttng_condition *condition, unsigned int index);
	88
	89	#endif /* LTTNG_CONDITION_EVENT_RULE_MATCHES_INTERNAL_H */