[lttng-tools.git] / src / bin / lttng-sessiond / trace-ust.hpp

/*
 * Copyright (C) 2011 EfficiOS Inc.
 * Copyright (C) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
 *
 * SPDX-License-Identifier: GPL-2.0-only
 *
 */

#ifndef _LTT_TRACE_UST_H
#define _LTT_TRACE_UST_H

#include "consumer.hpp"
#include "lttng-ust-ctl.hpp"

#include <common/defaults.hpp>
#include <common/hashtable/hashtable.hpp>
#include <common/tracker.hpp>

#include <lttng/lttng.h>

#include <limits.h>
#include <urcu/list.h>

struct agent;

struct ltt_ust_ht_key {
	const char *name;
	const struct lttng_bytecode *filter;
	enum lttng_ust_abi_loglevel_type loglevel_type;
	int loglevel_value;
	const struct lttng_event_exclusion *exclusion;
};

/* Context hash table nodes */
struct ltt_ust_context {
	struct lttng_ust_context_attr ctx;
	struct lttng_ht_node_ulong node;
	struct cds_list_head list;
};

/* UST event */
struct ltt_ust_event {
	bool enabled;
	struct lttng_ust_abi_event attr;
	struct lttng_ht_node_str node;
	char *filter_expression;
	struct lttng_bytecode *filter;
	struct lttng_event_exclusion *exclusion;
	/*
	 * An internal event is an event which was created by the session daemon
	 * through which, for example, events emitted in Agent domains are
	 * "funelled". This is used to hide internal events from external
	 * clients as they should never be modified by the external world.
	 */
	bool internal;
};

/* UST channel */
struct ltt_ust_channel {
	uint64_t id; /* unique id per session. */
	bool enabled;
	/*
	 * A UST channel can be part of a userspace sub-domain such as JUL,
	 * Log4j, Python.
	 */
	enum lttng_domain_type domain;
	char name[LTTNG_UST_ABI_SYM_NAME_LEN];
	struct lttng_ust_abi_channel_attr attr;
	struct lttng_ht *ctx;
	struct cds_list_head ctx_list;
	struct lttng_ht *events;
	struct lttng_ht_node_str node;
	uint64_t tracefile_size;
	uint64_t tracefile_count;
	uint64_t per_pid_closed_app_discarded;
	uint64_t per_pid_closed_app_lost;
	uint64_t monitor_timer_interval;
};

/* UST domain global (LTTNG_DOMAIN_UST) */
struct ltt_ust_domain_global {
	struct lttng_ht *channels;
	struct cds_list_head registry_buffer_uid_list;
};

struct ust_id_tracker_node {
	struct lttng_ht_node_ulong node;
};

struct ust_id_tracker {
	struct lttng_ht *ht;
};

/* UST session */
struct ltt_ust_session {
	uint64_t id; /* Unique identifier of session */
	struct ltt_ust_domain_global domain_global;
	/* Hash table of agent indexed by agent domain. */
	struct lttng_ht *agents;
	/* UID/GID of the user owning the session */
	uid_t uid;
	gid_t gid;
	/* Is the session active meaning has is been started or stopped. */
	bool active;
	struct consumer_output *consumer;
	/* Sequence number for filters so the tracer knows the ordering. */
	uint64_t filter_seq_num;
	/* This indicates which type of buffer this session is set for. */
	enum lttng_buffer_type buffer_type;
	/* If set to 1, the buffer_type can not be changed anymore. */
	int buffer_type_changed;
	/* For per UID buffer, every buffer reg object is kept of this session */
	struct cds_list_head buffer_reg_uid_list;
	/* Next channel ID available for a newly registered channel. */
	uint64_t next_event_container_id;
	/* Once this value reaches UINT64_MAX, no more id can be allocated. */
	uint64_t used_event_container_id;
	/* Tell or not if the session has to output the traces. */
	unsigned int output_traces;
	unsigned int snapshot_mode;
	unsigned int has_non_default_channel;
	unsigned int live_timer_interval; /* usec */

	/* Metadata channel attributes. */
	struct lttng_ust_abi_channel_attr metadata_attr;

	/*
	 * Path where to keep the shared memory files.
	 */
	char root_shm_path[PATH_MAX];
	char shm_path[PATH_MAX];

	/* Current trace chunk of the ltt_session. */
	struct lttng_trace_chunk *current_trace_chunk;

	/* Trackers used for actual lookup on app registration. */
	struct ust_id_tracker vpid_tracker;
	struct ust_id_tracker vuid_tracker;
	struct ust_id_tracker vgid_tracker;

	/* Tracker list of keys requested by users. */
	struct process_attr_tracker *tracker_vpid;
	struct process_attr_tracker *tracker_vuid;
	struct process_attr_tracker *tracker_vgid;
};

/*
 * Validate that the id has reached the maximum allowed or not.
 *
 * Return 0 if NOT else 1.
 */
static inline int trace_ust_is_max_id(uint64_t id)
{
	return (id == UINT64_MAX) ? 1 : 0;
}

/*
 * Return next available channel id and increment the used counter. The
 * trace_ust_is_max_id function MUST be called before in order to validate if
 * the maximum number of IDs have been reached. If not, it is safe to call this
 * function.
 *
 * Return a unique channel ID. If max is reached, the used_event_container_id counter
 * is returned.
 */
static inline uint64_t trace_ust_get_next_event_container_id(struct ltt_ust_session *s)
{
	if (trace_ust_is_max_id(s->used_event_container_id)) {
		return s->used_event_container_id;
	}

	s->used_event_container_id++;
	return s->next_event_container_id++;
}

#ifdef HAVE_LIBLTTNG_UST_CTL

int trace_ust_ht_match_event(struct cds_lfht_node *node, const void *_key);
int trace_ust_ht_match_event_by_name(struct cds_lfht_node *node, const void *_key);

/*
 * Lookup functions. NULL is returned if not found.
 */
struct ltt_ust_event *trace_ust_find_event(struct lttng_ht *ht,
					   char *name,
					   struct lttng_bytecode *filter,
					   enum lttng_ust_abi_loglevel_type loglevel_type,
					   int loglevel_value,
					   struct lttng_event_exclusion *exclusion);
struct ltt_ust_channel *trace_ust_find_channel_by_name(struct lttng_ht *ht, const char *name);
struct agent *trace_ust_find_agent(struct ltt_ust_session *session,
				   enum lttng_domain_type domain_type);

/*
 * Create functions malloc() the data structure.
 */
struct ltt_ust_session *trace_ust_create_session(uint64_t session_id);
struct ltt_ust_channel *trace_ust_create_channel(struct lttng_channel *attr,
						 enum lttng_domain_type domain);

enum lttng_error_code trace_ust_create_event(struct lttng_event *ev,
					     char *filter_expression,
					     struct lttng_bytecode *filter,
					     struct lttng_event_exclusion *exclusion,
					     bool internal_event,
					     struct ltt_ust_event **ust_event);
struct ltt_ust_context *trace_ust_create_context(const struct lttng_event_context *ctx);
int trace_ust_match_context(const struct ltt_ust_context *uctx,
			    const struct lttng_event_context *ctx);
void trace_ust_delete_channel(struct lttng_ht *ht, struct ltt_ust_channel *channel);

int trace_ust_regenerate_metadata(struct ltt_ust_session *usess);

/*
 * Destroy functions free() the data structure and remove from linked list if
 * it's applies.
 */
void trace_ust_destroy_session(struct ltt_ust_session *session);
void trace_ust_destroy_channel(struct ltt_ust_channel *channel);
void trace_ust_destroy_event(struct ltt_ust_event *event);
void trace_ust_destroy_context(struct ltt_ust_context *ctx);
void trace_ust_free_session(struct ltt_ust_session *session);

int trace_ust_id_tracker_lookup(enum lttng_process_attr process_attr,
				struct ltt_ust_session *session,
				int id);
enum lttng_error_code
trace_ust_process_attr_tracker_set_tracking_policy(struct ltt_ust_session *session,
						   enum lttng_process_attr process_attr,
						   enum lttng_tracking_policy policy);
enum lttng_error_code
trace_ust_process_attr_tracker_inclusion_set_add_value(struct ltt_ust_session *session,
						       enum lttng_process_attr process_attr,
						       const struct process_attr_value *value);
enum lttng_error_code
trace_ust_process_attr_tracker_inclusion_set_remove_value(struct ltt_ust_session *session,
							  enum lttng_process_attr process_attr,
							  const struct process_attr_value *value);
const struct process_attr_tracker *
trace_ust_get_process_attr_tracker(struct ltt_ust_session *session,
				   enum lttng_process_attr process_attr);

#else /* HAVE_LIBLTTNG_UST_CTL */

static inline int trace_ust_ht_match_event(struct cds_lfht_node *node __attribute__((unused)),
					   const void *_key __attribute__((unused)))
{
	return 0;
}

static inline int trace_ust_ht_match_event_by_name(struct cds_lfht_node *node
						   __attribute__((unused)),
						   const void *_key __attribute__((unused)))
{
	return 0;
}

static inline struct ltt_ust_channel *trace_ust_find_channel_by_name(struct lttng_ht *ht
								     __attribute__((unused)),
								     const char *name
								     __attribute__((unused)))
{
	return NULL;
}

static inline struct ltt_ust_session *trace_ust_create_session(unsigned int session_id
							       __attribute__((unused)))
{
	return NULL;
}

static inline struct ltt_ust_channel *trace_ust_create_channel(struct lttng_channel *attr
							       __attribute__((unused)),
							       enum lttng_domain_type domain
							       __attribute__((unused)))
{
	return NULL;
}

static inline enum lttng_error_code
trace_ust_create_event(struct lttng_event *ev __attribute__((unused)),
		       const char *filter_expression __attribute__((unused)),
		       struct lttng_bytecode *filter __attribute__((unused)),
		       struct lttng_event_exclusion *exclusion __attribute__((unused)),
		       bool internal_event __attribute__((unused)),
		       struct ltt_ust_event **ust_event __attribute__((unused)))
{
	return LTTNG_ERR_NO_UST;
}

static inline void trace_ust_destroy_session(struct ltt_ust_session *session
					     __attribute__((unused)))
{
}

static inline void trace_ust_destroy_channel(struct ltt_ust_channel *channel
					     __attribute__((unused)))
{
}

static inline void trace_ust_destroy_event(struct ltt_ust_event *event __attribute__((unused)))
{
}

static inline void trace_ust_free_session(struct ltt_ust_session *session __attribute__((unused)))
{
}

static inline struct ltt_ust_context *trace_ust_create_context(const struct lttng_event_context *ctx
							       __attribute__((unused)))
{
	return NULL;
}

static inline int trace_ust_match_context(const struct ltt_ust_context *uctx
					  __attribute__((unused)),
					  const struct lttng_event_context *ctx
					  __attribute__((unused)))
{
	return 0;
}

static inline struct ltt_ust_event *
trace_ust_find_event(struct lttng_ht *ht __attribute__((unused)),
		     char *name __attribute__((unused)),
		     struct lttng_bytecode *filter __attribute__((unused)),
		     enum lttng_ust_abi_loglevel_type loglevel_type __attribute__((unused)),
		     int loglevel_value __attribute__((unused)),
		     struct lttng_event_exclusion *exclusion __attribute__((unused)))
{
	return NULL;
}

static inline void trace_ust_delete_channel(struct lttng_ht *ht __attribute__((unused)),
					    struct ltt_ust_channel *channel __attribute__((unused)))
{
	return;
}

static inline int trace_ust_regenerate_metadata(struct ltt_ust_session *usess
						__attribute__((unused)))
{
	return 0;
}

static inline struct agent *trace_ust_find_agent(struct ltt_ust_session *session
						 __attribute__((unused)),
						 enum lttng_domain_type domain_type
						 __attribute__((unused)))
{
	return NULL;
}

static inline int trace_ust_id_tracker_lookup(enum lttng_process_attr process_attr
					      __attribute__((unused)),
					      struct ltt_ust_session *session
					      __attribute__((unused)),
					      int id __attribute__((unused)))
{
	return 0;
}

static inline enum lttng_error_code trace_ust_process_attr_tracker_set_tracking_policy(
	struct ltt_ust_session *session __attribute__((unused)),
	enum lttng_process_attr process_attr __attribute__((unused)),
	enum lttng_tracking_policy policy __attribute__((unused)))
{
	return LTTNG_OK;
}

static inline enum lttng_error_code trace_ust_process_attr_tracker_inclusion_set_add_value(
	struct ltt_ust_session *session __attribute__((unused)),
	enum lttng_process_attr process_attr __attribute__((unused)),
	const struct process_attr_value *value __attribute__((unused)))
{
	return LTTNG_OK;
}

static inline enum lttng_error_code trace_ust_process_attr_tracker_inclusion_set_remove_value(
	struct ltt_ust_session *session __attribute__((unused)),
	enum lttng_process_attr process_attr __attribute__((unused)),
	const struct process_attr_value *value __attribute__((unused)))
{
	return LTTNG_OK;
}

static inline const struct process_attr_tracker *
trace_ust_get_process_attr_tracker(struct ltt_ust_session *session __attribute__((unused)),
				   enum lttng_process_attr process_attr __attribute__((unused)))
{
	return NULL;
}

#endif /* HAVE_LIBLTTNG_UST_CTL */

#endif /* _LTT_TRACE_UST_H */
Commit	Line	Data
97ee3a89	1	/*
21cf9b6b	2	* Copyright (C) 2011 EfficiOS Inc.
ab5be9fa	3	* Copyright (C) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
97ee3a89	4	*
ab5be9fa	5	* SPDX-License-Identifier: GPL-2.0-only
97ee3a89	6	*
97ee3a89 DG	7	*/
	8
	9	#ifndef _LTT_TRACE_UST_H
	10	#define _LTT_TRACE_UST_H
	11
28f23191 JG	12	#include "consumer.hpp"
28f23191 JG	13	#include "lttng-ust-ctl.hpp"
bec39940	14
c9e313bc SM	15	#include <common/defaults.hpp>
	16	#include <common/hashtable/hashtable.hpp>
	17	#include <common/tracker.hpp>
28f23191	18
159b042f	19	#include <lttng/lttng.h>
3bd1e081	20
28f23191 JG	21	#include <limits.h>
28f23191 JG	22	#include <urcu/list.h>
97ee3a89	23
7c1d2758 JG	24	struct agent;
7c1d2758 JG	25
18eace3b DG	26	struct ltt_ust_ht_key {
18eace3b DG	27	const char *name;
2b00d462	28	const struct lttng_bytecode *filter;
fc4b93fa	29	enum lttng_ust_abi_loglevel_type loglevel_type;
b953b8cd	30	int loglevel_value;
7724731b	31	const struct lttng_event_exclusion *exclusion;
18eace3b DG	32	};
18eace3b DG	33
f6a9efaa DG	34	/* Context hash table nodes */
f6a9efaa DG	35	struct ltt_ust_context {
bdf64013	36	struct lttng_ust_context_attr ctx;
bec39940	37	struct lttng_ht_node_ulong node;
31746f93	38	struct cds_list_head list;
97ee3a89 DG	39	};
	40
	41	/* UST event */
	42	struct ltt_ust_event {
66cefebd	43	bool enabled;
fc4b93fa	44	struct lttng_ust_abi_event attr;
bec39940	45	struct lttng_ht_node_str node;
6b453b5e	46	char *filter_expression;
2b00d462	47	struct lttng_bytecode *filter;
40024f8a	48	struct lttng_event_exclusion *exclusion;
5b37cc51 JG	49	/*
	50	* An internal event is an event which was created by the session daemon
	51	* through which, for example, events emitted in Agent domains are
	52	* "funelled". This is used to hide internal events from external
	53	* clients as they should never be modified by the external world.
	54	*/
88f06f15	55	bool internal;
2bdd86d4 MD	56	};
2bdd86d4 MD	57
97ee3a89 DG	58	/* UST channel */
97ee3a89 DG	59	struct ltt_ust_channel {
28f23191	60	uint64_t id; /* unique id per session. */
66cefebd	61	bool enabled;
51755dc8 JG	62	/*
	63	* A UST channel can be part of a userspace sub-domain such as JUL,
	64	* Log4j, Python.
	65	*/
	66	enum lttng_domain_type domain;
fc4b93fa MD	67	char name[LTTNG_UST_ABI_SYM_NAME_LEN];
fc4b93fa MD	68	struct lttng_ust_abi_channel_attr attr;
bec39940	69	struct lttng_ht *ctx;
31746f93	70	struct cds_list_head ctx_list;
bec39940 DG	71	struct lttng_ht *events;
bec39940 DG	72	struct lttng_ht_node_str node;
1624d5b7 JD	73	uint64_t tracefile_size;
1624d5b7 JD	74	uint64_t tracefile_count;
fb83fe64 JD	75	uint64_t per_pid_closed_app_discarded;
fb83fe64 JD	76	uint64_t per_pid_closed_app_lost;
e9404c27	77	uint64_t monitor_timer_interval;
97ee3a89 DG	78	};
97ee3a89 DG	79
f6a9efaa DG	80	/* UST domain global (LTTNG_DOMAIN_UST) */
f6a9efaa DG	81	struct ltt_ust_domain_global {
bec39940	82	struct lttng_ht *channels;
7972aab2	83	struct cds_list_head registry_buffer_uid_list;
f6a9efaa DG	84	};
f6a9efaa DG	85
55c9e7ca	86	struct ust_id_tracker_node {
a9ad0c8f MD	87	struct lttng_ht_node_ulong node;
	88	};
	89
55c9e7ca	90	struct ust_id_tracker {
a9ad0c8f MD	91	struct lttng_ht *ht;
	92	};
	93
97ee3a89 DG	94	/* UST session */
97ee3a89 DG	95	struct ltt_ust_session {
28f23191	96	uint64_t id; /* Unique identifier of session */
f6a9efaa	97	struct ltt_ust_domain_global domain_global;
fefd409b DG	98	/* Hash table of agent indexed by agent domain. */
fefd409b DG	99	struct lttng_ht *agents;
6df2e2c9 MD	100	/* UID/GID of the user owning the session */
	101	uid_t uid;
	102	gid_t gid;
14fb1ebe	103	/* Is the session active meaning has is been started or stopped. */
66cefebd	104	bool active;
00e2e675	105	struct consumer_output *consumer;
f3f0db50 DG	106	/* Sequence number for filters so the tracer knows the ordering. */
f3f0db50 DG	107	uint64_t filter_seq_num;
7972aab2 DG	108	/* This indicates which type of buffer this session is set for. */
	109	enum lttng_buffer_type buffer_type;
	110	/* If set to 1, the buffer_type can not be changed anymore. */
	111	int buffer_type_changed;
	112	/* For per UID buffer, every buffer reg object is kept of this session */
	113	struct cds_list_head buffer_reg_uid_list;
	114	/* Next channel ID available for a newly registered channel. */
dc88217e FD	115	uint64_t next_event_container_id;
	116	/* Once this value reaches UINT64_MAX, no more id can be allocated. */
	117	uint64_t used_event_container_id;
2bba9e53 DG	118	/* Tell or not if the session has to output the traces. */
2bba9e53 DG	119	unsigned int output_traces;
27babd3a	120	unsigned int snapshot_mode;
85076754	121	unsigned int has_non_default_channel;
28f23191	122	unsigned int live_timer_interval; /* usec */
84ad93e8 DG	123
84ad93e8 DG	124	/* Metadata channel attributes. */
fc4b93fa	125	struct lttng_ust_abi_channel_attr metadata_attr;
d7ba1388 MD	126
	127	/*
	128	* Path where to keep the shared memory files.
	129	*/
3d071855	130	char root_shm_path[PATH_MAX];
d7ba1388	131	char shm_path[PATH_MAX];
a9ad0c8f	132
82b69413 JG	133	/* Current trace chunk of the ltt_session. */
82b69413 JG	134	struct lttng_trace_chunk *current_trace_chunk;
55c9e7ca JR	135
	136	/* Trackers used for actual lookup on app registration. */
	137	struct ust_id_tracker vpid_tracker;
	138	struct ust_id_tracker vuid_tracker;
	139	struct ust_id_tracker vgid_tracker;
	140
	141	/* Tracker list of keys requested by users. */
159b042f JG	142	struct process_attr_tracker *tracker_vpid;
	143	struct process_attr_tracker *tracker_vuid;
	144	struct process_attr_tracker *tracker_vgid;
97ee3a89 DG	145	};
97ee3a89 DG	146
7972aab2 DG	147	/*
	148	* Validate that the id has reached the maximum allowed or not.
	149	*
	150	* Return 0 if NOT else 1.
	151	*/
	152	static inline int trace_ust_is_max_id(uint64_t id)
	153	{
	154	return (id == UINT64_MAX) ? 1 : 0;
	155	}
	156
	157	/*
	158	* Return next available channel id and increment the used counter. The
	159	* trace_ust_is_max_id function MUST be called before in order to validate if
	160	* the maximum number of IDs have been reached. If not, it is safe to call this
	161	* function.
	162	*
dc88217e	163	* Return a unique channel ID. If max is reached, the used_event_container_id counter
7972aab2 DG	164	* is returned.
7972aab2 DG	165	*/
dc88217e	166	static inline uint64_t trace_ust_get_next_event_container_id(struct ltt_ust_session *s)
7972aab2	167	{
dc88217e FD	168	if (trace_ust_is_max_id(s->used_event_container_id)) {
dc88217e FD	169	return s->used_event_container_id;
7972aab2 DG	170	}
7972aab2 DG	171
dc88217e FD	172	s->used_event_container_id++;
dc88217e FD	173	return s->next_event_container_id++;
7972aab2 DG	174	}
7972aab2 DG	175
74d0b642	176	#ifdef HAVE_LIBLTTNG_UST_CTL
3bd1e081	177
18eace3b	178	int trace_ust_ht_match_event(struct cds_lfht_node node, const void _key);
28f23191	179	int trace_ust_ht_match_event_by_name(struct cds_lfht_node node, const void _key);
18eace3b	180
97ee3a89 DG	181	/*
	182	* Lookup functions. NULL is returned if not found.
	183	*/
18eace3b	184	struct ltt_ust_event trace_ust_find_event(struct lttng_ht ht,
28f23191 JG	185	char *name,
	186	struct lttng_bytecode *filter,
	187	enum lttng_ust_abi_loglevel_type loglevel_type,
	188	int loglevel_value,
	189	struct lttng_event_exclusion *exclusion);
	190	struct ltt_ust_channel trace_ust_find_channel_by_name(struct lttng_ht ht, const char *name);
fefd409b	191	struct agent trace_ust_find_agent(struct ltt_ust_session session,
28f23191	192	enum lttng_domain_type domain_type);
97ee3a89 DG	193
	194	/*
	195	* Create functions malloc() the data structure.
	196	*/
d9bf3ca4	197	struct ltt_ust_session *trace_ust_create_session(uint64_t session_id);
51755dc8	198	struct ltt_ust_channel trace_ust_create_channel(struct lttng_channel attr,
28f23191	199	enum lttng_domain_type domain);
999af9c1	200
39687410	201	enum lttng_error_code trace_ust_create_event(struct lttng_event *ev,
28f23191 JG	202	char *filter_expression,
	203	struct lttng_bytecode *filter,
	204	struct lttng_event_exclusion *exclusion,
	205	bool internal_event,
	206	struct ltt_ust_event **ust_event);
	207	struct ltt_ust_context trace_ust_create_context(const struct lttng_event_context ctx);
df4f5a87	208	int trace_ust_match_context(const struct ltt_ust_context *uctx,
28f23191 JG	209	const struct lttng_event_context *ctx);
28f23191 JG	210	void trace_ust_delete_channel(struct lttng_ht ht, struct ltt_ust_channel channel);
97ee3a89	211
d7bfb9b0 JG	212	int trace_ust_regenerate_metadata(struct ltt_ust_session *usess);
d7bfb9b0 JG	213
97ee3a89 DG	214	/*
	215	* Destroy functions free() the data structure and remove from linked list if
	216	* it's applies.
	217	*/
	218	void trace_ust_destroy_session(struct ltt_ust_session *session);
97ee3a89 DG	219	void trace_ust_destroy_channel(struct ltt_ust_channel *channel);
97ee3a89 DG	220	void trace_ust_destroy_event(struct ltt_ust_event *event);
bdf64013	221	void trace_ust_destroy_context(struct ltt_ust_context *ctx);
d070c424	222	void trace_ust_free_session(struct ltt_ust_session *session);
97ee3a89	223
159b042f	224	int trace_ust_id_tracker_lookup(enum lttng_process_attr process_attr,
28f23191 JG	225	struct ltt_ust_session *session,
	226	int id);
	227	enum lttng_error_code
	228	trace_ust_process_attr_tracker_set_tracking_policy(struct ltt_ust_session *session,
	229	enum lttng_process_attr process_attr,
	230	enum lttng_tracking_policy policy);
	231	enum lttng_error_code
	232	trace_ust_process_attr_tracker_inclusion_set_add_value(struct ltt_ust_session *session,
	233	enum lttng_process_attr process_attr,
	234	const struct process_attr_value *value);
	235	enum lttng_error_code
	236	trace_ust_process_attr_tracker_inclusion_set_remove_value(struct ltt_ust_session *session,
	237	enum lttng_process_attr process_attr,
	238	const struct process_attr_value *value);
	239	const struct process_attr_tracker *
	240	trace_ust_get_process_attr_tracker(struct ltt_ust_session *session,
	241	enum lttng_process_attr process_attr);
a5dfbb9d	242
74d0b642	243	#else /* HAVE_LIBLTTNG_UST_CTL */
3bd1e081	244
28f23191 JG	245	static inline int trace_ust_ht_match_event(struct cds_lfht_node *node __attribute__((unused)),
28f23191 JG	246	const void *_key __attribute__((unused)))
37a86c61 DG	247	{
	248	return 0;
	249	}
f46376a1	250
28f23191 JG	251	static inline int trace_ust_ht_match_event_by_name(struct cds_lfht_node *node
	252	__attribute__((unused)),
	253	const void *_key __attribute__((unused)))
37a86c61 DG	254	{
	255	return 0;
	256	}
f46376a1	257
28f23191 JG	258	static inline struct ltt_ust_channel trace_ust_find_channel_by_name(struct lttng_ht ht
	259	__attribute__((unused)),
	260	const char *name
	261	__attribute__((unused)))
3bd1e081 MD	262	{
	263	return NULL;
	264	}
f6a9efaa	265
28f23191 JG	266	static inline struct ltt_ust_session *trace_ust_create_session(unsigned int session_id
28f23191 JG	267	__attribute__((unused)))
3bd1e081 MD	268	{
	269	return NULL;
	270	}
f46376a1	271
28f23191 JG	272	static inline struct ltt_ust_channel trace_ust_create_channel(struct lttng_channel attr
	273	__attribute__((unused)),
	274	enum lttng_domain_type domain
	275	__attribute__((unused)))
3bd1e081 MD	276	{
	277	return NULL;
	278	}
f46376a1	279
28f23191 JG	280	static inline enum lttng_error_code
	281	trace_ust_create_event(struct lttng_event *ev __attribute__((unused)),
	282	const char *filter_expression __attribute__((unused)),
	283	struct lttng_bytecode *filter __attribute__((unused)),
	284	struct lttng_event_exclusion *exclusion __attribute__((unused)),
	285	bool internal_event __attribute__((unused)),
	286	struct ltt_ust_event **ust_event __attribute__((unused)))
3bd1e081	287	{
39687410	288	return LTTNG_ERR_NO_UST;
3bd1e081	289	}
f46376a1	290
28f23191 JG	291	static inline void trace_ust_destroy_session(struct ltt_ust_session *session
28f23191 JG	292	__attribute__((unused)))
3bd1e081 MD	293	{
3bd1e081 MD	294	}
48842b30	295
28f23191 JG	296	static inline void trace_ust_destroy_channel(struct ltt_ust_channel *channel
28f23191 JG	297	__attribute__((unused)))
3bd1e081 MD	298	{
3bd1e081 MD	299	}
48842b30	300
28f23191	301	static inline void trace_ust_destroy_event(struct ltt_ust_event *event __attribute__((unused)))
3bd1e081 MD	302	{
3bd1e081 MD	303	}
d070c424	304
28f23191	305	static inline void trace_ust_free_session(struct ltt_ust_session *session __attribute__((unused)))
d070c424 MD	306	{
	307	}
	308
28f23191 JG	309	static inline struct ltt_ust_context trace_ust_create_context(const struct lttng_event_context ctx
28f23191 JG	310	__attribute__((unused)))
34378f76 DG	311	{
	312	return NULL;
	313	}
f46376a1	314
28f23191 JG	315	static inline int trace_ust_match_context(const struct ltt_ust_context *uctx
	316	__attribute__((unused)),
	317	const struct lttng_event_context *ctx
	318	__attribute__((unused)))
aa3514e9 MD	319	{
	320	return 0;
	321	}
f46376a1	322
28f23191 JG	323	static inline struct ltt_ust_event *
	324	trace_ust_find_event(struct lttng_ht *ht __attribute__((unused)),
	325	char *name __attribute__((unused)),
	326	struct lttng_bytecode *filter __attribute__((unused)),
	327	enum lttng_ust_abi_loglevel_type loglevel_type __attribute__((unused)),
	328	int loglevel_value __attribute__((unused)),
	329	struct lttng_event_exclusion *exclusion __attribute__((unused)))
37a86c61 DG	330	{
	331	return NULL;
	332	}
f46376a1	333
28f23191 JG	334	static inline void trace_ust_delete_channel(struct lttng_ht *ht __attribute__((unused)),
28f23191 JG	335	struct ltt_ust_channel *channel __attribute__((unused)))
d5979e4a DG	336	{
	337	return;
	338	}
f46376a1	339
28f23191 JG	340	static inline int trace_ust_regenerate_metadata(struct ltt_ust_session *usess
28f23191 JG	341	__attribute__((unused)))
d7bfb9b0 JG	342	{
	343	return 0;
	344	}
	345
28f23191 JG	346	static inline struct agent trace_ust_find_agent(struct ltt_ust_session session
	347	__attribute__((unused)),
	348	enum lttng_domain_type domain_type
	349	__attribute__((unused)))
fefd409b DG	350	{
	351	return NULL;
	352	}
f46376a1	353
28f23191 JG	354	static inline int trace_ust_id_tracker_lookup(enum lttng_process_attr process_attr
	355	__attribute__((unused)),
	356	struct ltt_ust_session *session
	357	__attribute__((unused)),
	358	int id __attribute__((unused)))
a9ad0c8f MD	359	{
	360	return 0;
	361	}
f46376a1	362
28f23191 JG	363	static inline enum lttng_error_code trace_ust_process_attr_tracker_set_tracking_policy(
	364	struct ltt_ust_session *session __attribute__((unused)),
	365	enum lttng_process_attr process_attr __attribute__((unused)),
	366	enum lttng_tracking_policy policy __attribute__((unused)))
a9ad0c8f	367	{
159b042f	368	return LTTNG_OK;
a9ad0c8f	369	}
f46376a1	370
28f23191 JG	371	static inline enum lttng_error_code trace_ust_process_attr_tracker_inclusion_set_add_value(
	372	struct ltt_ust_session *session __attribute__((unused)),
	373	enum lttng_process_attr process_attr __attribute__((unused)),
	374	const struct process_attr_value *value __attribute__((unused)))
b4650bd0	375	{
159b042f	376	return LTTNG_OK;
b4650bd0	377	}
f46376a1	378
28f23191 JG	379	static inline enum lttng_error_code trace_ust_process_attr_tracker_inclusion_set_remove_value(
	380	struct ltt_ust_session *session __attribute__((unused)),
	381	enum lttng_process_attr process_attr __attribute__((unused)),
	382	const struct process_attr_value *value __attribute__((unused)))
a5dfbb9d	383	{
159b042f	384	return LTTNG_OK;
a5dfbb9d	385	}
f46376a1	386
159b042f	387	static inline const struct process_attr_tracker *
28f23191 JG	388	trace_ust_get_process_attr_tracker(struct ltt_ust_session *session __attribute__((unused)),
28f23191 JG	389	enum lttng_process_attr process_attr __attribute__((unused)))
159b042f JG	390	{
	391	return NULL;
	392	}
	393
74d0b642	394	#endif /* HAVE_LIBLTTNG_UST_CTL */
3bd1e081	395
97ee3a89	396	#endif /* _LTT_TRACE_UST_H */