| 1 | /* |
| 2 | * Copyright (C) 2021 Simon Marchi <simon.marchi@efficios.com> |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0-only |
| 5 | * |
| 6 | */ |
| 7 | |
| 8 | #include <stdio.h> |
| 9 | |
| 10 | #include "../command.h" |
| 11 | |
| 12 | #include "common/argpar/argpar.h" |
| 13 | #include "common/dynamic-array.h" |
| 14 | #include "common/mi-lttng.h" |
| 15 | /* For lttng_condition_type_str(). */ |
| 16 | #include "lttng/condition/condition-internal.h" |
| 17 | /* For lttng_domain_type_str(). */ |
| 18 | #include "lttng/domain-internal.h" |
| 19 | |
| 20 | #ifdef LTTNG_EMBED_HELP |
| 21 | static const char help_msg[] = |
| 22 | #include <lttng-list-triggers.1.h> |
| 23 | ; |
| 24 | #endif |
| 25 | |
| 26 | enum { |
| 27 | OPT_HELP, |
| 28 | OPT_LIST_OPTIONS, |
| 29 | }; |
| 30 | |
| 31 | static const |
| 32 | struct argpar_opt_descr list_trigger_options[] = { |
| 33 | { OPT_HELP, 'h', "help", false }, |
| 34 | { OPT_LIST_OPTIONS, '\0', "list-options", false }, |
| 35 | ARGPAR_OPT_DESCR_SENTINEL, |
| 36 | }; |
| 37 | |
| 38 | static |
| 39 | void print_event_rule_tracepoint(const struct lttng_event_rule *event_rule) |
| 40 | { |
| 41 | enum lttng_event_rule_status event_rule_status; |
| 42 | enum lttng_domain_type domain_type; |
| 43 | const char *pattern; |
| 44 | const char *filter; |
| 45 | int log_level; |
| 46 | unsigned int exclusions_count; |
| 47 | int i; |
| 48 | |
| 49 | event_rule_status = lttng_event_rule_tracepoint_get_pattern( |
| 50 | event_rule, &pattern); |
| 51 | assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK); |
| 52 | |
| 53 | event_rule_status = lttng_event_rule_tracepoint_get_domain_type( |
| 54 | event_rule, &domain_type); |
| 55 | assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK); |
| 56 | |
| 57 | _MSG(" rule: %s (type: tracepoint, domain: %s", pattern, |
| 58 | lttng_domain_type_str(domain_type)); |
| 59 | |
| 60 | event_rule_status = lttng_event_rule_tracepoint_get_filter( |
| 61 | event_rule, &filter); |
| 62 | if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) { |
| 63 | _MSG(", filter: %s", filter); |
| 64 | } else { |
| 65 | assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET); |
| 66 | } |
| 67 | |
| 68 | event_rule_status = lttng_event_rule_tracepoint_get_log_level( |
| 69 | event_rule, &log_level); |
| 70 | if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) { |
| 71 | enum lttng_loglevel_type log_level_type; |
| 72 | const char *log_level_op; |
| 73 | |
| 74 | event_rule_status = lttng_event_rule_tracepoint_get_log_level_type( |
| 75 | event_rule, &log_level_type); |
| 76 | assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK); |
| 77 | assert(log_level_type == LTTNG_EVENT_LOGLEVEL_RANGE || |
| 78 | log_level_type == LTTNG_EVENT_LOGLEVEL_SINGLE); |
| 79 | |
| 80 | log_level_op = (log_level_type == LTTNG_EVENT_LOGLEVEL_RANGE ? "<=" : "=="); |
| 81 | |
| 82 | _MSG(", log level %s %s", log_level_op, |
| 83 | mi_lttng_loglevel_string( |
| 84 | log_level, domain_type)); |
| 85 | } else { |
| 86 | assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET); |
| 87 | } |
| 88 | |
| 89 | event_rule_status = lttng_event_rule_tracepoint_get_exclusions_count( |
| 90 | event_rule, &exclusions_count); |
| 91 | assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK); |
| 92 | if (exclusions_count > 0) { |
| 93 | _MSG(", exclusions: "); |
| 94 | for (i = 0; i < exclusions_count; i++) { |
| 95 | const char *exclusion; |
| 96 | |
| 97 | event_rule_status = lttng_event_rule_tracepoint_get_exclusion_at_index( |
| 98 | event_rule, i, &exclusion); |
| 99 | assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK); |
| 100 | |
| 101 | _MSG("%s%s", i > 0 ? "," : "", exclusion); |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | MSG(")"); |
| 106 | } |
| 107 | |
| 108 | static void print_kernel_probe_location( |
| 109 | const struct lttng_kernel_probe_location *location) |
| 110 | { |
| 111 | enum lttng_kernel_probe_location_status status; |
| 112 | switch (lttng_kernel_probe_location_get_type(location)) { |
| 113 | case LTTNG_KERNEL_PROBE_LOCATION_TYPE_ADDRESS: |
| 114 | { |
| 115 | uint64_t address; |
| 116 | |
| 117 | status = lttng_kernel_probe_location_address_get_address( |
| 118 | location, &address); |
| 119 | if (status != LTTNG_KERNEL_PROBE_LOCATION_STATUS_OK) { |
| 120 | ERR("Getting kernel probe location address failed."); |
| 121 | goto end; |
| 122 | } |
| 123 | |
| 124 | _MSG("0x%" PRIx64, address); |
| 125 | |
| 126 | break; |
| 127 | } |
| 128 | case LTTNG_KERNEL_PROBE_LOCATION_TYPE_SYMBOL_OFFSET: |
| 129 | { |
| 130 | uint64_t offset; |
| 131 | const char *symbol_name; |
| 132 | |
| 133 | symbol_name = lttng_kernel_probe_location_symbol_get_name( |
| 134 | location); |
| 135 | if (!symbol_name) { |
| 136 | ERR("Getting kernel probe location symbol name failed."); |
| 137 | goto end; |
| 138 | } |
| 139 | |
| 140 | status = lttng_kernel_probe_location_symbol_get_offset( |
| 141 | location, &offset); |
| 142 | if (status != LTTNG_KERNEL_PROBE_LOCATION_STATUS_OK) { |
| 143 | ERR("Getting kernel probe location address failed."); |
| 144 | goto end; |
| 145 | } |
| 146 | |
| 147 | if (offset == 0) { |
| 148 | _MSG("%s", symbol_name); |
| 149 | } else { |
| 150 | _MSG("%s+0x%" PRIx64, symbol_name, offset); |
| 151 | } |
| 152 | |
| 153 | break; |
| 154 | } |
| 155 | default: |
| 156 | abort(); |
| 157 | }; |
| 158 | end: |
| 159 | return; |
| 160 | } |
| 161 | |
| 162 | static |
| 163 | void print_event_rule_kernel_probe(const struct lttng_event_rule *event_rule) |
| 164 | { |
| 165 | enum lttng_event_rule_status event_rule_status; |
| 166 | const char *name; |
| 167 | const struct lttng_kernel_probe_location *location; |
| 168 | |
| 169 | assert(lttng_event_rule_get_type(event_rule) == LTTNG_EVENT_RULE_TYPE_KERNEL_PROBE); |
| 170 | |
| 171 | event_rule_status = lttng_event_rule_kernel_probe_get_name(event_rule, &name); |
| 172 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
| 173 | ERR("Failed to get kprobe event rule's name."); |
| 174 | goto end; |
| 175 | } |
| 176 | |
| 177 | event_rule_status = lttng_event_rule_kernel_probe_get_location( |
| 178 | event_rule, &location); |
| 179 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
| 180 | ERR("Failed to get kprobe event rule's location."); |
| 181 | goto end; |
| 182 | } |
| 183 | |
| 184 | _MSG(" rule: %s (type: probe, location: ", name); |
| 185 | |
| 186 | print_kernel_probe_location(location); |
| 187 | |
| 188 | MSG(")"); |
| 189 | |
| 190 | end: |
| 191 | return; |
| 192 | } |
| 193 | |
| 194 | static |
| 195 | void print_event_rule_uprobe(const struct lttng_event_rule *event_rule) |
| 196 | { |
| 197 | enum lttng_event_rule_status event_rule_status; |
| 198 | const char *name; |
| 199 | const struct lttng_userspace_probe_location *location; |
| 200 | enum lttng_userspace_probe_location_type userspace_probe_location_type; |
| 201 | |
| 202 | assert(lttng_event_rule_get_type(event_rule) == LTTNG_EVENT_RULE_TYPE_UPROBE); |
| 203 | |
| 204 | event_rule_status = lttng_event_rule_uprobe_get_name(event_rule, &name); |
| 205 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
| 206 | ERR("Failed to get uprobe event rule's name."); |
| 207 | goto end; |
| 208 | } |
| 209 | |
| 210 | event_rule_status = lttng_event_rule_uprobe_get_location( |
| 211 | event_rule, &location); |
| 212 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
| 213 | ERR("Failed to get uprobe event rule's location."); |
| 214 | goto end; |
| 215 | } |
| 216 | |
| 217 | _MSG(" rule: %s (type: userspace probe, location: ", name); |
| 218 | |
| 219 | userspace_probe_location_type = |
| 220 | lttng_userspace_probe_location_get_type(location); |
| 221 | |
| 222 | switch (userspace_probe_location_type) { |
| 223 | case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_FUNCTION: |
| 224 | { |
| 225 | const char *binary_path, *function_name; |
| 226 | |
| 227 | binary_path = lttng_userspace_probe_location_function_get_binary_path( |
| 228 | location); |
| 229 | function_name = lttng_userspace_probe_location_function_get_function_name( |
| 230 | location); |
| 231 | |
| 232 | _MSG("%s:%s", binary_path, function_name); |
| 233 | break; |
| 234 | } |
| 235 | case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_TRACEPOINT: |
| 236 | _MSG("SDT not implemented yet"); |
| 237 | break; |
| 238 | default: |
| 239 | abort(); |
| 240 | } |
| 241 | |
| 242 | MSG(")"); |
| 243 | |
| 244 | end: |
| 245 | return; |
| 246 | } |
| 247 | |
| 248 | static |
| 249 | void print_event_rule_syscall(const struct lttng_event_rule *event_rule) |
| 250 | { |
| 251 | const char *pattern, *filter; |
| 252 | enum lttng_event_rule_status event_rule_status; |
| 253 | |
| 254 | assert(lttng_event_rule_get_type(event_rule) == LTTNG_EVENT_RULE_TYPE_SYSCALL); |
| 255 | |
| 256 | event_rule_status = lttng_event_rule_syscall_get_pattern( |
| 257 | event_rule, &pattern); |
| 258 | assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK); |
| 259 | |
| 260 | _MSG(" rule: %s (type: syscall", pattern); |
| 261 | |
| 262 | event_rule_status = lttng_event_rule_syscall_get_filter( |
| 263 | event_rule, &filter); |
| 264 | if (event_rule_status == LTTNG_EVENT_RULE_STATUS_OK) { |
| 265 | _MSG(", filter: %s", filter); |
| 266 | } else { |
| 267 | assert(event_rule_status == LTTNG_EVENT_RULE_STATUS_UNSET); |
| 268 | } |
| 269 | |
| 270 | MSG(")"); |
| 271 | } |
| 272 | |
| 273 | static |
| 274 | void print_event_rule(const struct lttng_event_rule *event_rule) |
| 275 | { |
| 276 | const enum lttng_event_rule_type event_rule_type = |
| 277 | lttng_event_rule_get_type(event_rule); |
| 278 | |
| 279 | switch (event_rule_type) { |
| 280 | case LTTNG_EVENT_RULE_TYPE_TRACEPOINT: |
| 281 | print_event_rule_tracepoint(event_rule); |
| 282 | break; |
| 283 | case LTTNG_EVENT_RULE_TYPE_KERNEL_PROBE: |
| 284 | print_event_rule_kernel_probe(event_rule); |
| 285 | break; |
| 286 | case LTTNG_EVENT_RULE_TYPE_UPROBE: |
| 287 | print_event_rule_uprobe(event_rule); |
| 288 | break; |
| 289 | case LTTNG_EVENT_RULE_TYPE_SYSCALL: |
| 290 | print_event_rule_syscall(event_rule); |
| 291 | break; |
| 292 | default: |
| 293 | abort(); |
| 294 | } |
| 295 | } |
| 296 | |
| 297 | static |
| 298 | void print_one_event_expr(const struct lttng_event_expr *event_expr) |
| 299 | { |
| 300 | enum lttng_event_expr_type type; |
| 301 | |
| 302 | type = lttng_event_expr_get_type(event_expr); |
| 303 | |
| 304 | switch (type) { |
| 305 | case LTTNG_EVENT_EXPR_TYPE_EVENT_PAYLOAD_FIELD: |
| 306 | { |
| 307 | const char *name; |
| 308 | |
| 309 | name = lttng_event_expr_event_payload_field_get_name( |
| 310 | event_expr); |
| 311 | _MSG("%s", name); |
| 312 | |
| 313 | break; |
| 314 | } |
| 315 | case LTTNG_EVENT_EXPR_TYPE_CHANNEL_CONTEXT_FIELD: |
| 316 | { |
| 317 | const char *name; |
| 318 | |
| 319 | name = lttng_event_expr_channel_context_field_get_name( |
| 320 | event_expr); |
| 321 | _MSG("$ctx.%s", name); |
| 322 | |
| 323 | break; |
| 324 | } |
| 325 | case LTTNG_EVENT_EXPR_TYPE_APP_SPECIFIC_CONTEXT_FIELD: |
| 326 | { |
| 327 | const char *provider_name; |
| 328 | const char *type_name; |
| 329 | |
| 330 | provider_name = lttng_event_expr_app_specific_context_field_get_provider_name( |
| 331 | event_expr); |
| 332 | type_name = lttng_event_expr_app_specific_context_field_get_type_name( |
| 333 | event_expr); |
| 334 | |
| 335 | _MSG("$app.%s:%s", provider_name, type_name); |
| 336 | |
| 337 | break; |
| 338 | } |
| 339 | case LTTNG_EVENT_EXPR_TYPE_ARRAY_FIELD_ELEMENT: |
| 340 | { |
| 341 | unsigned int index; |
| 342 | const struct lttng_event_expr *parent_expr; |
| 343 | enum lttng_event_expr_status status; |
| 344 | |
| 345 | parent_expr = lttng_event_expr_array_field_element_get_parent_expr( |
| 346 | event_expr); |
| 347 | assert(parent_expr != NULL); |
| 348 | |
| 349 | print_one_event_expr(parent_expr); |
| 350 | |
| 351 | status = lttng_event_expr_array_field_element_get_index( |
| 352 | event_expr, &index); |
| 353 | assert(status == LTTNG_EVENT_EXPR_STATUS_OK); |
| 354 | |
| 355 | _MSG("[%u]", index); |
| 356 | |
| 357 | break; |
| 358 | } |
| 359 | default: |
| 360 | abort(); |
| 361 | } |
| 362 | } |
| 363 | |
| 364 | static |
| 365 | void print_condition_event_rule_hit(const struct lttng_condition *condition) |
| 366 | { |
| 367 | const struct lttng_event_rule *event_rule; |
| 368 | enum lttng_condition_status condition_status; |
| 369 | unsigned int cap_desc_count, i; |
| 370 | |
| 371 | condition_status = |
| 372 | lttng_condition_event_rule_get_rule(condition, &event_rule); |
| 373 | assert(condition_status == LTTNG_CONDITION_STATUS_OK); |
| 374 | |
| 375 | print_event_rule(event_rule); |
| 376 | |
| 377 | condition_status = |
| 378 | lttng_condition_event_rule_get_capture_descriptor_count( |
| 379 | condition, &cap_desc_count); |
| 380 | assert(condition_status == LTTNG_CONDITION_STATUS_OK); |
| 381 | |
| 382 | if (cap_desc_count > 0) { |
| 383 | MSG(" captures:"); |
| 384 | |
| 385 | for (i = 0; i < cap_desc_count; i++) { |
| 386 | const struct lttng_event_expr *cap_desc = |
| 387 | lttng_condition_event_rule_get_capture_descriptor_at_index( |
| 388 | condition, i); |
| 389 | |
| 390 | _MSG(" - "); |
| 391 | print_one_event_expr(cap_desc); |
| 392 | MSG(""); |
| 393 | } |
| 394 | } |
| 395 | } |
| 396 | |
| 397 | static |
| 398 | void print_one_action(const struct lttng_action *action) |
| 399 | { |
| 400 | enum lttng_action_type action_type; |
| 401 | enum lttng_action_status action_status; |
| 402 | const char *value; |
| 403 | |
| 404 | action_type = lttng_action_get_type(action); |
| 405 | assert(action_type != LTTNG_ACTION_TYPE_GROUP); |
| 406 | |
| 407 | switch (action_type) { |
| 408 | case LTTNG_ACTION_TYPE_NOTIFY: |
| 409 | MSG("notify"); |
| 410 | break; |
| 411 | case LTTNG_ACTION_TYPE_START_SESSION: |
| 412 | action_status = lttng_action_start_session_get_session_name( |
| 413 | action, &value); |
| 414 | assert(action_status == LTTNG_ACTION_STATUS_OK); |
| 415 | MSG("start session `%s`", value); |
| 416 | break; |
| 417 | case LTTNG_ACTION_TYPE_STOP_SESSION: |
| 418 | action_status = lttng_action_stop_session_get_session_name( |
| 419 | action, &value); |
| 420 | assert(action_status == LTTNG_ACTION_STATUS_OK); |
| 421 | MSG("stop session `%s`", value); |
| 422 | break; |
| 423 | case LTTNG_ACTION_TYPE_ROTATE_SESSION: |
| 424 | action_status = lttng_action_rotate_session_get_session_name( |
| 425 | action, &value); |
| 426 | assert(action_status == LTTNG_ACTION_STATUS_OK); |
| 427 | MSG("rotate session `%s`", value); |
| 428 | break; |
| 429 | case LTTNG_ACTION_TYPE_SNAPSHOT_SESSION: |
| 430 | { |
| 431 | const struct lttng_snapshot_output *output; |
| 432 | |
| 433 | action_status = lttng_action_snapshot_session_get_session_name( |
| 434 | action, &value); |
| 435 | assert(action_status == LTTNG_ACTION_STATUS_OK); |
| 436 | _MSG("snapshot session `%s`", value); |
| 437 | |
| 438 | action_status = lttng_action_snapshot_session_get_output( |
| 439 | action, &output); |
| 440 | if (action_status == LTTNG_ACTION_STATUS_OK) { |
| 441 | const char *name; |
| 442 | uint64_t max_size; |
| 443 | const char *ctrl_url, *data_url; |
| 444 | bool starts_with_file, starts_with_net, starts_with_net6; |
| 445 | |
| 446 | ctrl_url = lttng_snapshot_output_get_ctrl_url(output); |
| 447 | assert(ctrl_url && strlen(ctrl_url) > 0); |
| 448 | |
| 449 | data_url = lttng_snapshot_output_get_data_url(output); |
| 450 | assert(data_url); |
| 451 | |
| 452 | starts_with_file = strncmp(ctrl_url, "file://", strlen("file://")) == 0; |
| 453 | starts_with_net = strncmp(ctrl_url, "net://", strlen("net://")) == 0; |
| 454 | starts_with_net6 = strncmp(ctrl_url, "net6://", strlen("net6://")) == 0; |
| 455 | |
| 456 | if (ctrl_url[0] == '/' || starts_with_file) { |
| 457 | if (starts_with_file) { |
| 458 | ctrl_url += strlen("file://"); |
| 459 | } |
| 460 | |
| 461 | _MSG(", path: %s", ctrl_url); |
| 462 | } else if (starts_with_net || starts_with_net6) { |
| 463 | _MSG(", url: %s", ctrl_url); |
| 464 | } else { |
| 465 | assert(strlen(data_url) > 0); |
| 466 | |
| 467 | _MSG(", control url: %s, data url: %s", ctrl_url, data_url); |
| 468 | } |
| 469 | |
| 470 | name = lttng_snapshot_output_get_name(output); |
| 471 | assert(name); |
| 472 | if (strlen(name) > 0) { |
| 473 | _MSG(", name: %s", name); |
| 474 | } |
| 475 | |
| 476 | max_size = lttng_snapshot_output_get_maxsize(output); |
| 477 | if (max_size != -1ULL) { |
| 478 | _MSG(", max size: %" PRIu64, max_size); |
| 479 | } |
| 480 | } |
| 481 | |
| 482 | MSG(""); |
| 483 | break; |
| 484 | } |
| 485 | |
| 486 | default: |
| 487 | abort(); |
| 488 | } |
| 489 | } |
| 490 | |
| 491 | static |
| 492 | void print_one_trigger(const struct lttng_trigger *trigger) |
| 493 | { |
| 494 | const struct lttng_condition *condition; |
| 495 | enum lttng_condition_type condition_type; |
| 496 | const struct lttng_action *action; |
| 497 | enum lttng_action_type action_type; |
| 498 | enum lttng_trigger_status trigger_status; |
| 499 | const char *name; |
| 500 | enum lttng_trigger_firing_policy firing_policy_type; |
| 501 | uint64_t threshold; |
| 502 | uid_t trigger_uid; |
| 503 | |
| 504 | trigger_status = lttng_trigger_get_name(trigger, &name); |
| 505 | assert(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 506 | |
| 507 | trigger_status = lttng_trigger_get_owner_uid(trigger, &trigger_uid); |
| 508 | assert(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 509 | |
| 510 | MSG("- id: %s", name); |
| 511 | MSG(" user id: %d", trigger_uid); |
| 512 | |
| 513 | trigger_status = lttng_trigger_get_firing_policy( |
| 514 | trigger, &firing_policy_type, &threshold); |
| 515 | if (trigger_status != LTTNG_TRIGGER_STATUS_OK) { |
| 516 | ERR("Failed to get trigger's policy."); |
| 517 | goto end; |
| 518 | } |
| 519 | |
| 520 | switch (firing_policy_type) { |
| 521 | case LTTNG_TRIGGER_FIRING_POLICY_EVERY_N: |
| 522 | if (threshold > 1) { |
| 523 | MSG(" firing policy: after every %" PRIu64 " occurences", threshold); |
| 524 | } |
| 525 | break; |
| 526 | case LTTNG_TRIGGER_FIRING_POLICY_ONCE_AFTER_N: |
| 527 | MSG(" firing policy: once after %" PRIu64 " occurences", threshold); |
| 528 | break; |
| 529 | default: |
| 530 | abort(); |
| 531 | } |
| 532 | |
| 533 | condition = lttng_trigger_get_const_condition(trigger); |
| 534 | condition_type = lttng_condition_get_type(condition); |
| 535 | MSG(" condition: %s", lttng_condition_type_str(condition_type)); |
| 536 | switch (condition_type) { |
| 537 | case LTTNG_CONDITION_TYPE_EVENT_RULE_HIT: |
| 538 | print_condition_event_rule_hit(condition); |
| 539 | break; |
| 540 | default: |
| 541 | MSG(" (condition type not handled in %s)", __func__); |
| 542 | break; |
| 543 | } |
| 544 | |
| 545 | action = lttng_trigger_get_const_action(trigger); |
| 546 | action_type = lttng_action_get_type(action); |
| 547 | if (action_type == LTTNG_ACTION_TYPE_GROUP) { |
| 548 | unsigned int count, i; |
| 549 | enum lttng_action_status action_status; |
| 550 | |
| 551 | MSG(" actions:"); |
| 552 | |
| 553 | action_status = lttng_action_group_get_count(action, &count); |
| 554 | assert(action_status == LTTNG_ACTION_STATUS_OK); |
| 555 | |
| 556 | for (i = 0; i < count; i++) { |
| 557 | const struct lttng_action *subaction = |
| 558 | lttng_action_group_get_at_index( |
| 559 | action, i); |
| 560 | |
| 561 | _MSG(" "); |
| 562 | print_one_action(subaction); |
| 563 | } |
| 564 | } else { |
| 565 | _MSG(" action:"); |
| 566 | print_one_action(action); |
| 567 | } |
| 568 | |
| 569 | end: |
| 570 | return; |
| 571 | } |
| 572 | |
| 573 | static |
| 574 | int compare_triggers_by_name(const void *a, const void *b) |
| 575 | { |
| 576 | const struct lttng_trigger *trigger_a = *((const struct lttng_trigger **) a); |
| 577 | const struct lttng_trigger *trigger_b = *((const struct lttng_trigger **) b); |
| 578 | const char *name_a, *name_b; |
| 579 | enum lttng_trigger_status trigger_status; |
| 580 | |
| 581 | trigger_status = lttng_trigger_get_name(trigger_a, &name_a); |
| 582 | assert(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 583 | |
| 584 | trigger_status = lttng_trigger_get_name(trigger_b, &name_b); |
| 585 | assert(trigger_status == LTTNG_TRIGGER_STATUS_OK); |
| 586 | |
| 587 | return strcmp(name_a, name_b); |
| 588 | } |
| 589 | |
| 590 | int cmd_list_triggers(int argc, const char **argv) |
| 591 | { |
| 592 | int ret; |
| 593 | struct argpar_parse_ret argpar_parse_ret = {}; |
| 594 | struct lttng_triggers *triggers = NULL; |
| 595 | int i; |
| 596 | struct lttng_dynamic_pointer_array sorted_triggers; |
| 597 | enum lttng_trigger_status trigger_status; |
| 598 | unsigned int num_triggers; |
| 599 | |
| 600 | lttng_dynamic_pointer_array_init(&sorted_triggers, NULL); |
| 601 | |
| 602 | argpar_parse_ret = argpar_parse( |
| 603 | argc - 1, argv + 1, list_trigger_options, true); |
| 604 | if (!argpar_parse_ret.items) { |
| 605 | ERR("%s", argpar_parse_ret.error); |
| 606 | goto error; |
| 607 | } |
| 608 | |
| 609 | for (i = 0; i < argpar_parse_ret.items->n_items; i++) { |
| 610 | const struct argpar_item *item = |
| 611 | argpar_parse_ret.items->items[i]; |
| 612 | |
| 613 | if (item->type == ARGPAR_ITEM_TYPE_OPT) { |
| 614 | const struct argpar_item_opt *item_opt = |
| 615 | (const struct argpar_item_opt *) item; |
| 616 | |
| 617 | switch (item_opt->descr->id) { |
| 618 | case OPT_HELP: |
| 619 | SHOW_HELP(); |
| 620 | ret = 0; |
| 621 | goto end; |
| 622 | |
| 623 | case OPT_LIST_OPTIONS: |
| 624 | list_cmd_options_argpar(stdout, |
| 625 | list_trigger_options); |
| 626 | ret = 0; |
| 627 | goto end; |
| 628 | |
| 629 | default: |
| 630 | abort(); |
| 631 | } |
| 632 | |
| 633 | } else { |
| 634 | const struct argpar_item_non_opt *item_non_opt = |
| 635 | (const struct argpar_item_non_opt *) item; |
| 636 | |
| 637 | ERR("Unexpected argument: %s", item_non_opt->arg); |
| 638 | } |
| 639 | } |
| 640 | |
| 641 | ret = lttng_list_triggers(&triggers); |
| 642 | if (ret != LTTNG_OK) { |
| 643 | ERR("Error listing triggers: %s.", lttng_strerror(-ret)); |
| 644 | goto error; |
| 645 | } |
| 646 | |
| 647 | trigger_status = lttng_triggers_get_count(triggers, &num_triggers); |
| 648 | if (trigger_status != LTTNG_TRIGGER_STATUS_OK) { |
| 649 | ERR("Failed to get trigger count."); |
| 650 | goto error; |
| 651 | } |
| 652 | |
| 653 | for (i = 0; i < num_triggers; i++) { |
| 654 | const int add_ret = lttng_dynamic_pointer_array_add_pointer( |
| 655 | &sorted_triggers, |
| 656 | (void *) lttng_triggers_get_at_index(triggers, i)); |
| 657 | |
| 658 | if (add_ret) { |
| 659 | ERR("Failed to allocate array of struct lttng_trigger *."); |
| 660 | goto error; |
| 661 | } |
| 662 | } |
| 663 | |
| 664 | qsort(sorted_triggers.array.buffer.data, num_triggers, |
| 665 | sizeof(struct lttng_trigger *), |
| 666 | compare_triggers_by_name); |
| 667 | |
| 668 | for (i = 0; i < num_triggers; i++) { |
| 669 | const struct lttng_trigger *trigger_to_print = |
| 670 | (const struct lttng_trigger *) |
| 671 | lttng_dynamic_pointer_array_get_pointer( |
| 672 | &sorted_triggers, i); |
| 673 | |
| 674 | print_one_trigger(trigger_to_print); |
| 675 | } |
| 676 | |
| 677 | ret = 0; |
| 678 | goto end; |
| 679 | |
| 680 | error: |
| 681 | ret = 1; |
| 682 | |
| 683 | end: |
| 684 | argpar_parse_ret_fini(&argpar_parse_ret); |
| 685 | lttng_triggers_destroy(triggers); |
| 686 | lttng_dynamic_pointer_array_reset(&sorted_triggers); |
| 687 | |
| 688 | return ret; |
| 689 | } |