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

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

#ifndef LTTNG_CONDITION_BUFFER_USAGE_INTERNAL_H
#define LTTNG_CONDITION_BUFFER_USAGE_INTERNAL_H

#include <lttng/condition/buffer-usage.h>
#include <lttng/condition/condition-internal.h>
#include <lttng/condition/evaluation-internal.h>
#include <lttng/domain.h>
#include "common/buffer-view.h"
#include <common/macros.h>

struct lttng_condition_buffer_usage {
	struct lttng_condition parent;
	struct {
		bool set;
		uint64_t value;
	} threshold_bytes;
	struct {
		bool set;
		double value;
	} threshold_ratio;
	char *session_name;
	char *channel_name;
	struct {
		bool set;
		enum lttng_domain_type type;
	} domain;
};

struct lttng_condition_buffer_usage_comm {
	uint8_t threshold_set_in_bytes;
	/*
	 * Expressed in bytes if "threshold_set_in_bytes" is not 0.
	 * Otherwise, it is expressed a ratio in the interval [0.0, 1.0]
	 * that is mapped to the range on a 32-bit unsigned integer.
	 * The ratio is obtained by (threshold / UINT32_MAX).
	 */
	uint32_t threshold;
	/* Both lengths include the trailing \0. */
	uint32_t session_name_len;
	uint32_t channel_name_len;
	/* enum lttng_domain_type */
	int8_t domain_type;
	/* session and channel names. */
	char names[];
} LTTNG_PACKED;

struct lttng_evaluation_buffer_usage {
	struct lttng_evaluation parent;
	uint64_t buffer_use;
	uint64_t buffer_capacity;
};

struct lttng_evaluation_buffer_usage_comm {
	uint64_t buffer_use;
	uint64_t buffer_capacity;
} LTTNG_PACKED;

LTTNG_HIDDEN
struct lttng_evaluation *lttng_evaluation_buffer_usage_create(
		enum lttng_condition_type type, uint64_t use,
		uint64_t capacity);

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

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

LTTNG_HIDDEN
ssize_t lttng_evaluation_buffer_usage_low_create_from_payload(
		struct lttng_payload_view *view,
		struct lttng_evaluation **evaluation);

LTTNG_HIDDEN
ssize_t lttng_evaluation_buffer_usage_high_create_from_payload(
		struct lttng_payload_view *view,
		struct lttng_evaluation **evaluation);

#endif /* LTTNG_CONDITION_BUFFER_USAGE_INTERNAL_H */
Commit	Line	Data
a58c490f	1	/*
ab5be9fa	2	* Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
a58c490f	3	*
ab5be9fa	4	* SPDX-License-Identifier: LGPL-2.1-only
a58c490f	5	*
a58c490f JG	6	*/
	7
	8	#ifndef LTTNG_CONDITION_BUFFER_USAGE_INTERNAL_H
	9	#define LTTNG_CONDITION_BUFFER_USAGE_INTERNAL_H
	10
	11	#include <lttng/condition/buffer-usage.h>
	12	#include <lttng/condition/condition-internal.h>
	13	#include <lttng/condition/evaluation-internal.h>
	14	#include <lttng/domain.h>
	15	#include "common/buffer-view.h"
aa52c986	16	#include <common/macros.h>
a58c490f JG	17
	18	struct lttng_condition_buffer_usage {
	19	struct lttng_condition parent;
	20	struct {
	21	bool set;
	22	uint64_t value;
	23	} threshold_bytes;
	24	struct {
	25	bool set;
	26	double value;
	27	} threshold_ratio;
	28	char *session_name;
	29	char *channel_name;
	30	struct {
	31	bool set;
	32	enum lttng_domain_type type;
	33	} domain;
	34	};
	35
	36	struct lttng_condition_buffer_usage_comm {
	37	uint8_t threshold_set_in_bytes;
	38	/*
	39	* Expressed in bytes if "threshold_set_in_bytes" is not 0.
	40	* Otherwise, it is expressed a ratio in the interval [0.0, 1.0]
	41	* that is mapped to the range on a 32-bit unsigned integer.
	42	* The ratio is obtained by (threshold / UINT32_MAX).
	43	*/
	44	uint32_t threshold;
	45	/* Both lengths include the trailing \0. */
	46	uint32_t session_name_len;
	47	uint32_t channel_name_len;
	48	/* enum lttng_domain_type */
	49	int8_t domain_type;
	50	/* session and channel names. */
	51	char names[];
	52	} LTTNG_PACKED;
	53
	54	struct lttng_evaluation_buffer_usage {
	55	struct lttng_evaluation parent;
	56	uint64_t buffer_use;
	57	uint64_t buffer_capacity;
	58	};
	59
	60	struct lttng_evaluation_buffer_usage_comm {
	61	uint64_t buffer_use;
	62	uint64_t buffer_capacity;
	63	} LTTNG_PACKED;
	64
	65	LTTNG_HIDDEN
	66	struct lttng_evaluation *lttng_evaluation_buffer_usage_create(
	67	enum lttng_condition_type type, uint64_t use,
	68	uint64_t capacity);
	69
	70	LTTNG_HIDDEN
c0a66c84 JG	71	ssize_t lttng_condition_buffer_usage_low_create_from_payload(
c0a66c84 JG	72	struct lttng_payload_view *view,
a58c490f JG	73	struct lttng_condition **condition);
	74
	75	LTTNG_HIDDEN
c0a66c84 JG	76	ssize_t lttng_condition_buffer_usage_high_create_from_payload(
c0a66c84 JG	77	struct lttng_payload_view *view,
a58c490f JG	78	struct lttng_condition **condition);
	79
	80	LTTNG_HIDDEN
c0a66c84 JG	81	ssize_t lttng_evaluation_buffer_usage_low_create_from_payload(
c0a66c84 JG	82	struct lttng_payload_view *view,
a58c490f JG	83	struct lttng_evaluation **evaluation);
	84
	85	LTTNG_HIDDEN
c0a66c84 JG	86	ssize_t lttng_evaluation_buffer_usage_high_create_from_payload(
c0a66c84 JG	87	struct lttng_payload_view *view,
a58c490f JG	88	struct lttng_evaluation **evaluation);
	89
	90	#endif /* LTTNG_CONDITION_BUFFER_USAGE_INTERNAL_H */