| 1 | /* |
| 2 | * Copyright (C) 2011 EfficiOS Inc. |
| 3 | * Copyright (C) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 4 | * |
| 5 | * SPDX-License-Identifier: GPL-2.0-only |
| 6 | * |
| 7 | */ |
| 8 | |
| 9 | #ifndef _LTT_UST_APP_H |
| 10 | #define _LTT_UST_APP_H |
| 11 | |
| 12 | #include <stdint.h> |
| 13 | |
| 14 | #include <common/index-allocator.hpp> |
| 15 | #include <common/format.hpp> |
| 16 | #include <common/uuid.hpp> |
| 17 | |
| 18 | #include "trace-ust.hpp" |
| 19 | #include "ust-registry.hpp" |
| 20 | #include "ust-registry-session.hpp" |
| 21 | #include "session.hpp" |
| 22 | #include "ust-field-convert.hpp" |
| 23 | |
| 24 | #define UST_APP_EVENT_LIST_SIZE 32 |
| 25 | |
| 26 | /* Process name (short). */ |
| 27 | #define UST_APP_PROCNAME_LEN 16 |
| 28 | |
| 29 | struct lttng_bytecode; |
| 30 | struct lttng_ust_filter_bytecode; |
| 31 | |
| 32 | extern int the_ust_consumerd64_fd, the_ust_consumerd32_fd; |
| 33 | |
| 34 | /* |
| 35 | * Object used to close the notify socket in a call_rcu(). Since the |
| 36 | * application might not be found, we need an independant object containing the |
| 37 | * notify socket fd. |
| 38 | */ |
| 39 | struct ust_app_notify_sock_obj { |
| 40 | int fd; |
| 41 | struct rcu_head head; |
| 42 | }; |
| 43 | |
| 44 | struct ust_app_ht_key { |
| 45 | const char *name; |
| 46 | const struct lttng_bytecode *filter; |
| 47 | enum lttng_ust_abi_loglevel_type loglevel_type; |
| 48 | const struct lttng_event_exclusion *exclusion; |
| 49 | }; |
| 50 | |
| 51 | /* |
| 52 | * Application registration data structure. |
| 53 | */ |
| 54 | struct ust_register_msg { |
| 55 | enum lttng_ust_ctl_socket_type type; |
| 56 | uint32_t major; |
| 57 | uint32_t minor; |
| 58 | uint32_t abi_major; |
| 59 | uint32_t abi_minor; |
| 60 | pid_t pid; |
| 61 | pid_t ppid; |
| 62 | uid_t uid; |
| 63 | gid_t gid; |
| 64 | uint32_t bits_per_long; |
| 65 | uint32_t uint8_t_alignment; |
| 66 | uint32_t uint16_t_alignment; |
| 67 | uint32_t uint32_t_alignment; |
| 68 | uint32_t uint64_t_alignment; |
| 69 | uint32_t long_alignment; |
| 70 | int byte_order; /* BIG_ENDIAN or LITTLE_ENDIAN */ |
| 71 | char name[LTTNG_UST_ABI_PROCNAME_LEN]; |
| 72 | }; |
| 73 | |
| 74 | /* |
| 75 | * Global applications HT used by the session daemon. This table is indexed by |
| 76 | * PID using the pid_n node and pid value of an ust_app. |
| 77 | */ |
| 78 | extern struct lttng_ht *ust_app_ht; |
| 79 | |
| 80 | /* |
| 81 | * Global applications HT used by the session daemon. This table is indexed by |
| 82 | * socket using the sock_n node and sock value of an ust_app. |
| 83 | * |
| 84 | * The 'sock' in question here is the 'command' socket. |
| 85 | */ |
| 86 | extern struct lttng_ht *ust_app_ht_by_sock; |
| 87 | |
| 88 | /* |
| 89 | * Global applications HT used by the session daemon. This table is indexed by |
| 90 | * socket using the notify_sock_n node and notify_sock value of an ust_app. |
| 91 | */ |
| 92 | extern struct lttng_ht *ust_app_ht_by_notify_sock; |
| 93 | |
| 94 | /* Stream list containing ust_app_stream. */ |
| 95 | struct ust_app_stream_list { |
| 96 | unsigned int count; |
| 97 | struct cds_list_head head; |
| 98 | }; |
| 99 | |
| 100 | struct ust_app_ctx { |
| 101 | int handle; |
| 102 | struct lttng_ust_context_attr ctx; |
| 103 | struct lttng_ust_abi_object_data *obj; |
| 104 | struct lttng_ht_node_ulong node; |
| 105 | struct cds_list_head list; |
| 106 | }; |
| 107 | |
| 108 | struct ust_app_event { |
| 109 | bool enabled; |
| 110 | int handle; |
| 111 | struct lttng_ust_abi_object_data *obj; |
| 112 | struct lttng_ust_abi_event attr; |
| 113 | char name[LTTNG_UST_ABI_SYM_NAME_LEN]; |
| 114 | struct lttng_ht_node_str node; |
| 115 | struct lttng_bytecode *filter; |
| 116 | struct lttng_event_exclusion *exclusion; |
| 117 | }; |
| 118 | |
| 119 | struct ust_app_event_notifier_rule { |
| 120 | bool enabled; |
| 121 | uint64_t error_counter_index; |
| 122 | int handle; |
| 123 | struct lttng_ust_abi_object_data *obj; |
| 124 | /* Holds a strong reference. */ |
| 125 | struct lttng_trigger *trigger; |
| 126 | /* Unique ID returned by the tracer to identify this event notifier. */ |
| 127 | uint64_t token; |
| 128 | struct lttng_ht_node_u64 node; |
| 129 | /* The trigger object owns the filter. */ |
| 130 | const struct lttng_bytecode *filter; |
| 131 | /* Owned by this. */ |
| 132 | struct lttng_event_exclusion *exclusion; |
| 133 | /* For delayed reclaim. */ |
| 134 | struct rcu_head rcu_head; |
| 135 | }; |
| 136 | |
| 137 | struct ust_app_stream { |
| 138 | int handle; |
| 139 | char pathname[PATH_MAX]; |
| 140 | /* Format is %s_%d respectively channel name and CPU number. */ |
| 141 | char name[DEFAULT_STREAM_NAME_LEN]; |
| 142 | struct lttng_ust_abi_object_data *obj; |
| 143 | /* Using a list of streams to keep order. */ |
| 144 | struct cds_list_head list; |
| 145 | }; |
| 146 | |
| 147 | struct ust_app_channel { |
| 148 | bool enabled; |
| 149 | int handle; |
| 150 | /* |
| 151 | * Unique key used to identify the channel on the consumer side. |
| 152 | * 0 is a reserved 'invalid' value used to indicate that the consumer |
| 153 | * does not know about this channel (i.e. an error occurred). |
| 154 | */ |
| 155 | uint64_t key; |
| 156 | /* Id of the tracing channel set on creation. */ |
| 157 | uint64_t tracing_channel_id; |
| 158 | /* Number of stream that this channel is expected to receive. */ |
| 159 | unsigned int expected_stream_count; |
| 160 | char name[LTTNG_UST_ABI_SYM_NAME_LEN]; |
| 161 | struct lttng_ust_abi_object_data *obj; |
| 162 | struct lttng_ust_ctl_consumer_channel_attr attr; |
| 163 | struct ust_app_stream_list streams; |
| 164 | /* Session pointer that owns this object. */ |
| 165 | struct ust_app_session *session; |
| 166 | /* |
| 167 | * Contexts are kept in a hash table for fast lookup and in an ordered list |
| 168 | * so we are able to enable them on the tracer side in the same order the |
| 169 | * user added them. |
| 170 | */ |
| 171 | struct lttng_ht *ctx; |
| 172 | struct cds_list_head ctx_list; |
| 173 | |
| 174 | struct lttng_ht *events; |
| 175 | uint64_t tracefile_size; |
| 176 | uint64_t tracefile_count; |
| 177 | uint64_t monitor_timer_interval; |
| 178 | /* |
| 179 | * Node indexed by channel name in the channels' hash table of a session. |
| 180 | */ |
| 181 | struct lttng_ht_node_str node; |
| 182 | /* |
| 183 | * Node indexed by UST channel object descriptor (handle). Stored in the |
| 184 | * ust_objd hash table in the ust_app object. |
| 185 | */ |
| 186 | struct lttng_ht_node_ulong ust_objd_node; |
| 187 | /* For delayed reclaim */ |
| 188 | struct rcu_head rcu_head; |
| 189 | }; |
| 190 | |
| 191 | struct ust_app_session { |
| 192 | /* |
| 193 | * Lock protecting this session's ust app interaction. Held |
| 194 | * across command send/recv to/from app. Never nests within the |
| 195 | * session registry lock. |
| 196 | */ |
| 197 | pthread_mutex_t lock; |
| 198 | |
| 199 | bool enabled; |
| 200 | /* started: has the session been in started state at any time ? */ |
| 201 | bool started; /* allows detection of start vs restart. */ |
| 202 | int handle; /* used has unique identifier for app session */ |
| 203 | |
| 204 | bool deleted; /* Session deleted flag. Check with lock held. */ |
| 205 | |
| 206 | /* |
| 207 | * Tracing session ID. Multiple ust app session can have the same tracing |
| 208 | * session id making this value NOT unique to the object. |
| 209 | */ |
| 210 | uint64_t tracing_id; |
| 211 | uint64_t id; /* Unique session identifier */ |
| 212 | struct lttng_ht *channels; /* Registered channels */ |
| 213 | struct lttng_ht_node_u64 node; |
| 214 | /* |
| 215 | * Node indexed by UST session object descriptor (handle). Stored in the |
| 216 | * ust_sessions_objd hash table in the ust_app object. |
| 217 | */ |
| 218 | struct lttng_ht_node_ulong ust_objd_node; |
| 219 | /* Starts with 'ust'; no leading slash. */ |
| 220 | char path[PATH_MAX]; |
| 221 | /* UID/GID of the application owning the session */ |
| 222 | struct lttng_credentials real_credentials; |
| 223 | /* Effective UID and GID. Same as the tracing session. */ |
| 224 | struct lttng_credentials effective_credentials; |
| 225 | struct cds_list_head teardown_node; |
| 226 | /* |
| 227 | * Once at least *one* session is created onto the application, the |
| 228 | * corresponding consumer is set so we can use it on unregistration. |
| 229 | */ |
| 230 | struct consumer_output *consumer; |
| 231 | enum lttng_buffer_type buffer_type; |
| 232 | /* ABI of the session. Same value as the application. */ |
| 233 | uint32_t bits_per_long; |
| 234 | /* For delayed reclaim */ |
| 235 | struct rcu_head rcu_head; |
| 236 | /* If the channel's streams have to be outputed or not. */ |
| 237 | unsigned int output_traces; |
| 238 | unsigned int live_timer_interval; /* usec */ |
| 239 | |
| 240 | /* Metadata channel attributes. */ |
| 241 | struct lttng_ust_ctl_consumer_channel_attr metadata_attr; |
| 242 | |
| 243 | char root_shm_path[PATH_MAX]; |
| 244 | char shm_path[PATH_MAX]; |
| 245 | }; |
| 246 | |
| 247 | /* |
| 248 | * Registered traceable applications. Libust registers to the session daemon |
| 249 | * and a linked list is kept of all running traceable app. |
| 250 | */ |
| 251 | struct ust_app { |
| 252 | /* Traffic initiated from the session daemon to the application. */ |
| 253 | int sock; |
| 254 | pthread_mutex_t sock_lock; /* Protects sock protocol. */ |
| 255 | |
| 256 | /* Traffic initiated from the application to the session daemon. */ |
| 257 | int notify_sock; |
| 258 | pid_t pid; |
| 259 | pid_t ppid; |
| 260 | uid_t uid; /* User ID that owns the apps */ |
| 261 | gid_t gid; /* Group ID that owns the apps */ |
| 262 | |
| 263 | /* App ABI. */ |
| 264 | lttng::sessiond::trace::abi abi; |
| 265 | |
| 266 | int compatible; /* If the lttng-ust tracer version does not match the |
| 267 | supported version of the session daemon, this flag is |
| 268 | set to 0 (NOT compatible) else 1. */ |
| 269 | struct lttng_ust_abi_tracer_version version; |
| 270 | uint32_t v_major; /* Version major number */ |
| 271 | uint32_t v_minor; /* Version minor number */ |
| 272 | /* Extra for the NULL byte. */ |
| 273 | char name[UST_APP_PROCNAME_LEN + 1]; |
| 274 | /* Type of buffer this application uses. */ |
| 275 | enum lttng_buffer_type buffer_type; |
| 276 | struct lttng_ht *sessions; |
| 277 | struct lttng_ht_node_ulong pid_n; |
| 278 | struct lttng_ht_node_ulong sock_n; |
| 279 | struct lttng_ht_node_ulong notify_sock_n; |
| 280 | /* |
| 281 | * This is a list of ust app session that, once the app is going into |
| 282 | * teardown mode, in the RCU call, each node in this list is removed and |
| 283 | * deleted. |
| 284 | * |
| 285 | * Element of the list are added when an application unregisters after each |
| 286 | * ht_del of ust_app_session associated to this app. This list is NOT used |
| 287 | * when a session is destroyed. |
| 288 | */ |
| 289 | struct cds_list_head teardown_head; |
| 290 | /* |
| 291 | * Hash table containing ust_app_channel indexed by channel objd. |
| 292 | */ |
| 293 | struct lttng_ht *ust_objd; |
| 294 | /* |
| 295 | * Hash table containing ust_app_session indexed by objd. |
| 296 | */ |
| 297 | struct lttng_ht *ust_sessions_objd; |
| 298 | |
| 299 | /* |
| 300 | * If this application is of the agent domain and this is non negative then |
| 301 | * a lookup MUST be done to acquire a read side reference to the |
| 302 | * corresponding agent app object. If the lookup fails, this should be set |
| 303 | * to a negative value indicating that the agent application is gone. |
| 304 | */ |
| 305 | int agent_app_sock; |
| 306 | /* |
| 307 | * Time at which the app is registred. |
| 308 | * Used for path creation |
| 309 | */ |
| 310 | time_t registration_time; |
| 311 | /* |
| 312 | * Event notifier |
| 313 | */ |
| 314 | struct { |
| 315 | /* |
| 316 | * Handle to the lttng_ust object representing the event |
| 317 | * notifier group. |
| 318 | */ |
| 319 | struct lttng_ust_abi_object_data *object; |
| 320 | struct lttng_pipe *event_pipe; |
| 321 | struct lttng_ust_abi_object_data *counter; |
| 322 | struct lttng_ust_abi_object_data **counter_cpu; |
| 323 | int nr_counter_cpu; |
| 324 | } event_notifier_group; |
| 325 | /* |
| 326 | * Hashtable indexing the application's event notifier rule's |
| 327 | * (ust_app_event_notifier_rule) by their token's value. |
| 328 | */ |
| 329 | struct lttng_ht *token_to_event_notifier_rule_ht; |
| 330 | |
| 331 | lttng::sessiond::ust::ctl_field_quirks ctl_field_quirks() const; |
| 332 | }; |
| 333 | |
| 334 | /* |
| 335 | * Due to a bug in g++ < 7.1, this specialization must be enclosed in the fmt namespace, |
| 336 | * see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56480. |
| 337 | */ |
| 338 | namespace fmt { |
| 339 | template <> |
| 340 | struct formatter<ust_app> : formatter<std::string> { |
| 341 | template <typename FormatContextType> |
| 342 | typename FormatContextType::iterator format(const ust_app& app, FormatContextType& ctx) |
| 343 | { |
| 344 | return format_to(ctx.out(), |
| 345 | "{{ procname = `{}`, ppid = {}, pid = {}, uid = {}, gid = {}, version = {}.{}, registration time = {} }}", |
| 346 | app.name, app.ppid, app.pid, app.uid, app.gid, app.v_major, |
| 347 | app.v_minor, |
| 348 | lttng::utils::time_to_iso8601_str(app.registration_time)); |
| 349 | } |
| 350 | }; |
| 351 | } /* namespace fmt */ |
| 352 | |
| 353 | #ifdef HAVE_LIBLTTNG_UST_CTL |
| 354 | |
| 355 | int ust_app_register(struct ust_register_msg *msg, int sock); |
| 356 | int ust_app_register_done(struct ust_app *app); |
| 357 | int ust_app_version(struct ust_app *app); |
| 358 | void ust_app_unregister(int sock); |
| 359 | int ust_app_start_trace_all(struct ltt_ust_session *usess); |
| 360 | int ust_app_stop_trace_all(struct ltt_ust_session *usess); |
| 361 | int ust_app_destroy_trace_all(struct ltt_ust_session *usess); |
| 362 | int ust_app_list_events(struct lttng_event **events); |
| 363 | int ust_app_list_event_fields(struct lttng_event_field **fields); |
| 364 | int ust_app_create_event_glb(struct ltt_ust_session *usess, |
| 365 | struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent); |
| 366 | int ust_app_disable_channel_glb(struct ltt_ust_session *usess, |
| 367 | struct ltt_ust_channel *uchan); |
| 368 | int ust_app_enable_channel_glb(struct ltt_ust_session *usess, |
| 369 | struct ltt_ust_channel *uchan); |
| 370 | int ust_app_enable_event_glb(struct ltt_ust_session *usess, |
| 371 | struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent); |
| 372 | int ust_app_disable_event_glb(struct ltt_ust_session *usess, |
| 373 | struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent); |
| 374 | int ust_app_add_ctx_channel_glb(struct ltt_ust_session *usess, |
| 375 | struct ltt_ust_channel *uchan, struct ltt_ust_context *uctx); |
| 376 | void ust_app_global_update(struct ltt_ust_session *usess, struct ust_app *app); |
| 377 | void ust_app_global_update_all(struct ltt_ust_session *usess); |
| 378 | void ust_app_global_update_event_notifier_rules(struct ust_app *app); |
| 379 | void ust_app_global_update_all_event_notifier_rules(); |
| 380 | |
| 381 | void ust_app_clean_list(); |
| 382 | int ust_app_ht_alloc(); |
| 383 | struct ust_app *ust_app_find_by_pid(pid_t pid); |
| 384 | struct ust_app_stream *ust_app_alloc_stream(); |
| 385 | int ust_app_recv_registration(int sock, struct ust_register_msg *msg); |
| 386 | int ust_app_recv_notify(int sock); |
| 387 | void ust_app_add(struct ust_app *app); |
| 388 | struct ust_app *ust_app_create(struct ust_register_msg *msg, int sock); |
| 389 | void ust_app_notify_sock_unregister(int sock); |
| 390 | ssize_t ust_app_push_metadata(const lttng::sessiond::ust::registry_session::locked_ptr& registry, |
| 391 | struct consumer_socket *socket, |
| 392 | int send_zero_data); |
| 393 | void ust_app_destroy(struct ust_app *app); |
| 394 | enum lttng_error_code ust_app_snapshot_record( |
| 395 | const struct ltt_ust_session *usess, |
| 396 | const struct consumer_output *output, |
| 397 | uint64_t nb_packets_per_stream); |
| 398 | uint64_t ust_app_get_size_one_more_packet_per_stream( |
| 399 | const struct ltt_ust_session *usess, uint64_t cur_nr_packets); |
| 400 | struct ust_app *ust_app_find_by_sock(int sock); |
| 401 | int ust_app_uid_get_channel_runtime_stats(uint64_t ust_session_id, |
| 402 | struct cds_list_head *buffer_reg_uid_list, |
| 403 | struct consumer_output *consumer, uint64_t uchan_id, |
| 404 | int overwrite, uint64_t *discarded, uint64_t *lost); |
| 405 | int ust_app_pid_get_channel_runtime_stats(struct ltt_ust_session *usess, |
| 406 | struct ltt_ust_channel *uchan, |
| 407 | struct consumer_output *consumer, |
| 408 | int overwrite, uint64_t *discarded, uint64_t *lost); |
| 409 | int ust_app_regenerate_statedump_all(struct ltt_ust_session *usess); |
| 410 | enum lttng_error_code ust_app_rotate_session(struct ltt_session *session); |
| 411 | enum lttng_error_code ust_app_create_channel_subdirectories( |
| 412 | const struct ltt_ust_session *session); |
| 413 | int ust_app_release_object(struct ust_app *app, |
| 414 | struct lttng_ust_abi_object_data *data); |
| 415 | enum lttng_error_code ust_app_clear_session(struct ltt_session *session); |
| 416 | enum lttng_error_code ust_app_open_packets(struct ltt_session *session); |
| 417 | |
| 418 | int ust_app_setup_event_notifier_group(struct ust_app *app); |
| 419 | |
| 420 | static inline |
| 421 | int ust_app_supported() |
| 422 | { |
| 423 | return 1; |
| 424 | } |
| 425 | |
| 426 | bool ust_app_supports_notifiers(const struct ust_app *app); |
| 427 | bool ust_app_supports_counters(const struct ust_app *app); |
| 428 | |
| 429 | #else /* HAVE_LIBLTTNG_UST_CTL */ |
| 430 | |
| 431 | static inline |
| 432 | int ust_app_destroy_trace_all( |
| 433 | struct ltt_ust_session *usess __attribute__((unused))) |
| 434 | { |
| 435 | return 0; |
| 436 | } |
| 437 | |
| 438 | static inline |
| 439 | int ust_app_start_trace( |
| 440 | struct ltt_ust_session *usess __attribute__((unused)), |
| 441 | struct ust_app *app __attribute__((unused))) |
| 442 | { |
| 443 | return 0; |
| 444 | } |
| 445 | |
| 446 | static inline |
| 447 | int ust_app_start_trace_all( |
| 448 | struct ltt_ust_session *usess __attribute__((unused))) |
| 449 | { |
| 450 | return 0; |
| 451 | } |
| 452 | |
| 453 | static inline |
| 454 | int ust_app_stop_trace_all( |
| 455 | struct ltt_ust_session *usess __attribute__((unused))) |
| 456 | { |
| 457 | return 0; |
| 458 | } |
| 459 | |
| 460 | static inline |
| 461 | int ust_app_list_events( |
| 462 | struct lttng_event **events __attribute__((unused))) |
| 463 | { |
| 464 | return -ENOSYS; |
| 465 | } |
| 466 | |
| 467 | static inline |
| 468 | int ust_app_list_event_fields( |
| 469 | struct lttng_event_field **fields __attribute__((unused))) |
| 470 | { |
| 471 | return -ENOSYS; |
| 472 | } |
| 473 | |
| 474 | static inline |
| 475 | int ust_app_register( |
| 476 | struct ust_register_msg *msg __attribute__((unused)), |
| 477 | int sock __attribute__((unused))) |
| 478 | { |
| 479 | return -ENOSYS; |
| 480 | } |
| 481 | |
| 482 | static inline |
| 483 | int ust_app_register_done(struct ust_app *app __attribute__((unused))) |
| 484 | { |
| 485 | return -ENOSYS; |
| 486 | } |
| 487 | |
| 488 | static inline |
| 489 | int ust_app_version(struct ust_app *app __attribute__((unused))) |
| 490 | { |
| 491 | return -ENOSYS; |
| 492 | } |
| 493 | |
| 494 | static inline |
| 495 | void ust_app_unregister(int sock __attribute__((unused))) |
| 496 | { |
| 497 | } |
| 498 | |
| 499 | static inline |
| 500 | void ust_app_clean_list(void) |
| 501 | { |
| 502 | } |
| 503 | |
| 504 | static inline |
| 505 | struct ust_app_list *ust_app_get_list(void) |
| 506 | { |
| 507 | return NULL; |
| 508 | } |
| 509 | |
| 510 | static inline |
| 511 | struct ust_app *ust_app_get_by_pid(pid_t pid __attribute__((unused))) |
| 512 | { |
| 513 | return NULL; |
| 514 | } |
| 515 | |
| 516 | static inline |
| 517 | int ust_app_ht_alloc(void) |
| 518 | { |
| 519 | return 0; |
| 520 | } |
| 521 | |
| 522 | static inline |
| 523 | void ust_app_global_update( |
| 524 | struct ltt_ust_session *usess __attribute__((unused)), |
| 525 | struct ust_app *app __attribute__((unused))) |
| 526 | {} |
| 527 | |
| 528 | static inline |
| 529 | void ust_app_global_update_event_notifier_rules( |
| 530 | struct ust_app *app __attribute__((unused))) |
| 531 | {} |
| 532 | |
| 533 | static inline |
| 534 | void ust_app_global_update_all_event_notifier_rules(void) |
| 535 | {} |
| 536 | |
| 537 | static inline |
| 538 | int ust_app_setup_event_notifier_group( |
| 539 | struct ust_app *app __attribute__((unused))) |
| 540 | { |
| 541 | return 0; |
| 542 | } |
| 543 | |
| 544 | static inline |
| 545 | int ust_app_disable_channel_glb( |
| 546 | struct ltt_ust_session *usess __attribute__((unused)), |
| 547 | struct ltt_ust_channel *uchan __attribute__((unused))) |
| 548 | { |
| 549 | return 0; |
| 550 | } |
| 551 | |
| 552 | static inline |
| 553 | int ust_app_enable_channel_glb( |
| 554 | struct ltt_ust_session *usess __attribute__((unused)), |
| 555 | struct ltt_ust_channel *uchan __attribute__((unused))) |
| 556 | { |
| 557 | return 0; |
| 558 | } |
| 559 | |
| 560 | static inline |
| 561 | int ust_app_create_event_glb( |
| 562 | struct ltt_ust_session *usess __attribute__((unused)), |
| 563 | struct ltt_ust_channel *uchan __attribute__((unused)), |
| 564 | struct ltt_ust_event *uevent __attribute__((unused))) |
| 565 | { |
| 566 | return 0; |
| 567 | } |
| 568 | |
| 569 | static inline |
| 570 | int ust_app_disable_event_glb( |
| 571 | struct ltt_ust_session *usess __attribute__((unused)), |
| 572 | struct ltt_ust_channel *uchan __attribute__((unused)), |
| 573 | struct ltt_ust_event *uevent __attribute__((unused))) |
| 574 | { |
| 575 | return 0; |
| 576 | } |
| 577 | |
| 578 | static inline |
| 579 | int ust_app_enable_event_glb( |
| 580 | struct ltt_ust_session *usess __attribute__((unused)), |
| 581 | struct ltt_ust_channel *uchan __attribute__((unused)), |
| 582 | struct ltt_ust_event *uevent __attribute__((unused))) |
| 583 | { |
| 584 | return 0; |
| 585 | } |
| 586 | |
| 587 | static inline |
| 588 | int ust_app_add_ctx_channel_glb( |
| 589 | struct ltt_ust_session *usess __attribute__((unused)), |
| 590 | struct ltt_ust_channel *uchan __attribute__((unused)), |
| 591 | struct ltt_ust_context *uctx __attribute__((unused))) |
| 592 | { |
| 593 | return 0; |
| 594 | } |
| 595 | |
| 596 | static inline |
| 597 | int ust_app_enable_event_pid( |
| 598 | struct ltt_ust_session *usess __attribute__((unused)), |
| 599 | struct ltt_ust_channel *uchan __attribute__((unused)), |
| 600 | struct ltt_ust_event *uevent __attribute__((unused)), |
| 601 | pid_t pid __attribute__((unused))) |
| 602 | { |
| 603 | return 0; |
| 604 | } |
| 605 | |
| 606 | static inline |
| 607 | int ust_app_recv_registration( |
| 608 | int sock __attribute__((unused)), |
| 609 | struct ust_register_msg *msg __attribute__((unused))) |
| 610 | { |
| 611 | return 0; |
| 612 | } |
| 613 | |
| 614 | static inline |
| 615 | int ust_app_recv_notify(int sock __attribute__((unused))) |
| 616 | { |
| 617 | return 0; |
| 618 | } |
| 619 | |
| 620 | static inline |
| 621 | struct ust_app *ust_app_create( |
| 622 | struct ust_register_msg *msg __attribute__((unused)), |
| 623 | int sock __attribute__((unused))) |
| 624 | { |
| 625 | return NULL; |
| 626 | } |
| 627 | |
| 628 | static inline |
| 629 | void ust_app_add(struct ust_app *app __attribute__((unused))) |
| 630 | { |
| 631 | } |
| 632 | |
| 633 | static inline |
| 634 | void ust_app_notify_sock_unregister(int sock __attribute__((unused))) |
| 635 | { |
| 636 | } |
| 637 | |
| 638 | static inline |
| 639 | ssize_t ust_app_push_metadata( |
| 640 | lttng::sessiond::ust::registry_session *registry __attribute__((unused)), |
| 641 | struct consumer_socket *socket __attribute__((unused)), |
| 642 | int send_zero_data __attribute__((unused))) |
| 643 | { |
| 644 | return 0; |
| 645 | } |
| 646 | |
| 647 | static inline |
| 648 | void ust_app_destroy(struct ust_app *app __attribute__((unused))) |
| 649 | { |
| 650 | return; |
| 651 | } |
| 652 | |
| 653 | static inline |
| 654 | enum lttng_error_code ust_app_snapshot_record( |
| 655 | struct ltt_ust_session *usess __attribute__((unused)), |
| 656 | const struct consumer_output *output __attribute__((unused)), |
| 657 | uint64_t max_stream_size __attribute__((unused))) |
| 658 | { |
| 659 | return LTTNG_ERR_UNK; |
| 660 | } |
| 661 | |
| 662 | static inline |
| 663 | unsigned int ust_app_get_nb_stream( |
| 664 | struct ltt_ust_session *usess __attribute__((unused))) |
| 665 | { |
| 666 | return 0; |
| 667 | } |
| 668 | |
| 669 | static inline |
| 670 | void ust_app_update_event_notifier_error_count( |
| 671 | struct lttng_trigger *lttng_trigger __attribute__((unused))) |
| 672 | { |
| 673 | return; |
| 674 | } |
| 675 | |
| 676 | static inline |
| 677 | int ust_app_supported(void) |
| 678 | { |
| 679 | return 0; |
| 680 | } |
| 681 | |
| 682 | static inline |
| 683 | bool ust_app_supports_notifiers( |
| 684 | const struct ust_app *app __attribute__((unused))) |
| 685 | { |
| 686 | return false; |
| 687 | } |
| 688 | |
| 689 | static inline |
| 690 | bool ust_app_supports_counters( |
| 691 | const struct ust_app *app __attribute__((unused))) |
| 692 | { |
| 693 | return false; |
| 694 | } |
| 695 | |
| 696 | static inline |
| 697 | struct ust_app *ust_app_find_by_sock(int sock __attribute__((unused))) |
| 698 | { |
| 699 | return NULL; |
| 700 | } |
| 701 | |
| 702 | static inline |
| 703 | struct ust_app *ust_app_find_by_pid(pid_t pid __attribute__((unused))) |
| 704 | { |
| 705 | return NULL; |
| 706 | } |
| 707 | |
| 708 | static inline |
| 709 | uint64_t ust_app_get_size_one_more_packet_per_stream( |
| 710 | const struct ltt_ust_session *usess __attribute__((unused)), |
| 711 | uint64_t cur_nr_packets __attribute__((unused))) { |
| 712 | return 0; |
| 713 | } |
| 714 | |
| 715 | static inline |
| 716 | int ust_app_uid_get_channel_runtime_stats( |
| 717 | uint64_t ust_session_id __attribute__((unused)), |
| 718 | struct cds_list_head *buffer_reg_uid_list __attribute__((unused)), |
| 719 | struct consumer_output *consumer __attribute__((unused)), |
| 720 | int overwrite __attribute__((unused)), |
| 721 | uint64_t uchan_id __attribute__((unused)), |
| 722 | uint64_t *discarded __attribute__((unused)), |
| 723 | uint64_t *lost __attribute__((unused))) |
| 724 | { |
| 725 | return 0; |
| 726 | } |
| 727 | |
| 728 | static inline |
| 729 | int ust_app_pid_get_channel_runtime_stats( |
| 730 | struct ltt_ust_session *usess __attribute__((unused)), |
| 731 | struct ltt_ust_channel *uchan __attribute__((unused)), |
| 732 | struct consumer_output *consumer __attribute__((unused)), |
| 733 | int overwrite __attribute__((unused)), |
| 734 | uint64_t *discarded __attribute__((unused)), |
| 735 | uint64_t *lost __attribute__((unused))) |
| 736 | { |
| 737 | return 0; |
| 738 | } |
| 739 | |
| 740 | static inline |
| 741 | int ust_app_regenerate_statedump_all( |
| 742 | struct ltt_ust_session *usess __attribute__((unused))) |
| 743 | { |
| 744 | return 0; |
| 745 | } |
| 746 | |
| 747 | static inline |
| 748 | enum lttng_error_code ust_app_rotate_session( |
| 749 | struct ltt_session *session __attribute__((unused))) |
| 750 | { |
| 751 | return LTTNG_ERR_UNK; |
| 752 | } |
| 753 | |
| 754 | static inline |
| 755 | enum lttng_error_code ust_app_create_channel_subdirectories( |
| 756 | const struct ltt_ust_session *session __attribute__((unused))) |
| 757 | { |
| 758 | return LTTNG_ERR_UNK; |
| 759 | } |
| 760 | |
| 761 | static inline |
| 762 | int ust_app_release_object(struct ust_app *app __attribute__((unused)), |
| 763 | struct lttng_ust_abi_object_data *data __attribute__((unused))) |
| 764 | { |
| 765 | return 0; |
| 766 | } |
| 767 | |
| 768 | static inline |
| 769 | enum lttng_error_code ust_app_clear_session( |
| 770 | struct ltt_session *session __attribute__((unused))) |
| 771 | { |
| 772 | return LTTNG_ERR_UNK; |
| 773 | } |
| 774 | |
| 775 | static inline |
| 776 | enum lttng_error_code ust_app_open_packets( |
| 777 | struct ltt_session *session __attribute__((unused))) |
| 778 | { |
| 779 | return LTTNG_ERR_UNK; |
| 780 | } |
| 781 | |
| 782 | #endif /* HAVE_LIBLTTNG_UST_CTL */ |
| 783 | |
| 784 | #endif /* _LTT_UST_APP_H */ |