| | 1 | /* |
| | 2 | * notification.c |
| | 3 | * |
| | 4 | * Tests suite for LTTng notification API |
| | 5 | * |
| | 6 | * Copyright (C) 2017 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com> |
| | 7 | * |
| | 8 | * SPDX-License-Identifier: MIT |
| | 9 | * |
| | 10 | */ |
| | 11 | |
| | 12 | #include <assert.h> |
| | 13 | #include <math.h> |
| | 14 | #include <stdbool.h> |
| | 15 | #include <stdio.h> |
| | 16 | #include <stdlib.h> |
| | 17 | #include <string.h> |
| | 18 | #include <unistd.h> |
| | 19 | #include <inttypes.h> |
| | 20 | #include <sys/types.h> |
| | 21 | #include <sys/stat.h> |
| | 22 | #include <fcntl.h> |
| | 23 | #include <signal.h> |
| | 24 | #include <poll.h> |
| | 25 | |
| | 26 | #include <common/compat/errno.h> |
| | 27 | #include <lttng/action/action.h> |
| | 28 | #include <lttng/action/notify.h> |
| | 29 | #include <lttng/condition/buffer-usage.h> |
| | 30 | #include <lttng/condition/condition.h> |
| | 31 | #include <lttng/condition/evaluation.h> |
| | 32 | #include <lttng/domain.h> |
| | 33 | #include <lttng/endpoint.h> |
| | 34 | #include <lttng/lttng-error.h> |
| | 35 | #include <lttng/notification/channel.h> |
| | 36 | #include <lttng/notification/notification.h> |
| | 37 | #include <lttng/trigger/trigger.h> |
| | 38 | #include <lttng/lttng.h> |
| | 39 | |
| | 40 | #include <tap/tap.h> |
| | 41 | |
| | 42 | #define NUM_TESTS 104 |
| | 43 | |
| | 44 | int nb_args = 0; |
| | 45 | int named_pipe_args_start = 0; |
| | 46 | pid_t app_pid = -1; |
| | 47 | const char *app_state_file = NULL; |
| | 48 | |
| | 49 | static |
| | 50 | void wait_on_file(const char *path, bool file_exist) |
| | 51 | { |
| | 52 | if (!path) { |
| | 53 | return; |
| | 54 | } |
| | 55 | for (;;) { |
| | 56 | int ret; |
| | 57 | struct stat buf; |
| | 58 | |
| | 59 | ret = stat(path, &buf); |
| | 60 | if (ret == -1 && errno == ENOENT) { |
| | 61 | if (file_exist) { |
| | 62 | /* |
| | 63 | * The file does not exist. wait a bit and |
| | 64 | * continue looping until it does. |
| | 65 | */ |
| | 66 | (void) poll(NULL, 0, 10); |
| | 67 | continue; |
| | 68 | } |
| | 69 | |
| | 70 | /* |
| | 71 | * File does not exist and the exit condition we want. |
| | 72 | * Break from the loop and return. |
| | 73 | */ |
| | 74 | break; |
| | 75 | } |
| | 76 | if (ret) { |
| | 77 | perror("stat"); |
| | 78 | exit(EXIT_FAILURE); |
| | 79 | } |
| | 80 | /* |
| | 81 | * stat() returned 0, so the file exists. break now only if |
| | 82 | * that's the exit condition we want. |
| | 83 | */ |
| | 84 | if (file_exist) { |
| | 85 | break; |
| | 86 | } |
| | 87 | } |
| | 88 | } |
| | 89 | |
| | 90 | static |
| | 91 | int write_pipe(const char *path, uint8_t data) |
| | 92 | { |
| | 93 | int ret = 0; |
| | 94 | int fd = 0; |
| | 95 | |
| | 96 | fd = open(path, O_WRONLY | O_NONBLOCK); |
| | 97 | if (fd < 0) { |
| | 98 | perror("Could not open consumer control named pipe"); |
| | 99 | goto end; |
| | 100 | } |
| | 101 | |
| | 102 | ret = write(fd, &data , sizeof(data)); |
| | 103 | if (ret < 1) { |
| | 104 | perror("Named pipe write failed"); |
| | 105 | if (close(fd)) { |
| | 106 | perror("Named pipe close failed"); |
| | 107 | } |
| | 108 | ret = -1; |
| | 109 | goto end; |
| | 110 | } |
| | 111 | |
| | 112 | ret = close(fd); |
| | 113 | if (ret < 0) { |
| | 114 | perror("Name pipe closing failed"); |
| | 115 | ret = -1; |
| | 116 | goto end; |
| | 117 | } |
| | 118 | end: |
| | 119 | return ret; |
| | 120 | } |
| | 121 | |
| | 122 | static |
| | 123 | int stop_consumer(const char **argv) |
| | 124 | { |
| | 125 | int ret = 0, i; |
| | 126 | |
| | 127 | for (i = named_pipe_args_start; i < nb_args; i++) { |
| | 128 | ret = write_pipe(argv[i], 49); |
| | 129 | } |
| | 130 | return ret; |
| | 131 | } |
| | 132 | |
| | 133 | static |
| | 134 | int resume_consumer(const char **argv) |
| | 135 | { |
| | 136 | int ret = 0, i; |
| | 137 | |
| | 138 | for (i = named_pipe_args_start; i < nb_args; i++) { |
| | 139 | ret = write_pipe(argv[i], 0); |
| | 140 | } |
| | 141 | return ret; |
| | 142 | } |
| | 143 | |
| | 144 | static |
| | 145 | int suspend_application(void) |
| | 146 | { |
| | 147 | int ret; |
| | 148 | struct stat buf; |
| | 149 | |
| | 150 | if (!stat(app_state_file, &buf)) { |
| | 151 | fail("App is already in a suspended state."); |
| | 152 | ret = -1; |
| | 153 | goto error; |
| | 154 | } |
| | 155 | |
| | 156 | /* |
| | 157 | * Send SIGUSR1 to application instructing it to bypass tracepoint. |
| | 158 | */ |
| | 159 | ret = kill(app_pid, SIGUSR1); |
| | 160 | if (ret) { |
| | 161 | fail("SIGUSR1 failed. errno %d", errno); |
| | 162 | ret = -1; |
| | 163 | goto error; |
| | 164 | } |
| | 165 | |
| | 166 | wait_on_file(app_state_file, true); |
| | 167 | |
| | 168 | error: |
| | 169 | return ret; |
| | 170 | |
| | 171 | } |
| | 172 | |
| | 173 | static |
| | 174 | int resume_application(void) |
| | 175 | { |
| | 176 | int ret; |
| | 177 | struct stat buf; |
| | 178 | |
| | 179 | ret = stat(app_state_file, &buf); |
| | 180 | if (ret == -1 && errno == ENOENT) { |
| | 181 | fail("State file does not exist"); |
| | 182 | goto error; |
| | 183 | } |
| | 184 | if (ret) { |
| | 185 | perror("stat"); |
| | 186 | goto error; |
| | 187 | } |
| | 188 | |
| | 189 | ret = kill(app_pid, SIGUSR1); |
| | 190 | if (ret) { |
| | 191 | fail("SIGUSR1 failed. errno %d", errno); |
| | 192 | ret = -1; |
| | 193 | goto error; |
| | 194 | } |
| | 195 | |
| | 196 | wait_on_file(app_state_file, false); |
| | 197 | |
| | 198 | error: |
| | 199 | return ret; |
| | 200 | |
| | 201 | } |
| | 202 | |
| | 203 | |
| | 204 | static |
| | 205 | void test_triggers_buffer_usage_condition(const char *session_name, |
| | 206 | const char *channel_name, |
| | 207 | enum lttng_domain_type domain_type, |
| | 208 | enum lttng_condition_type condition_type) |
| | 209 | { |
| | 210 | unsigned int test_vector_size = 5, i; |
| | 211 | enum lttng_condition_status condition_status; |
| | 212 | struct lttng_action *action; |
| | 213 | |
| | 214 | /* Set-up */ |
| | 215 | action = lttng_action_notify_create(); |
| | 216 | if (!action) { |
| | 217 | fail("Setup error on action creation"); |
| | 218 | goto end; |
| | 219 | } |
| | 220 | |
| | 221 | /* Test lttng_register_trigger with null value */ |
| | 222 | ok(lttng_register_trigger(NULL) == -LTTNG_ERR_INVALID, "Registering a NULL trigger fails as expected"); |
| | 223 | |
| | 224 | /* Test: register a trigger */ |
| | 225 | |
| | 226 | for (i = 0; i < pow(2,test_vector_size); i++) { |
| | 227 | int loop_ret = 0; |
| | 228 | char *test_tuple_string = NULL; |
| | 229 | unsigned int mask_position = 0; |
| | 230 | bool session_name_set = false; |
| | 231 | bool channel_name_set = false; |
| | 232 | bool threshold_ratio_set = false; |
| | 233 | bool threshold_byte_set = false; |
| | 234 | bool domain_type_set = false; |
| | 235 | |
| | 236 | struct lttng_trigger *trigger = NULL; |
| | 237 | struct lttng_condition *condition = NULL; |
| | 238 | |
| | 239 | /* Create base condition */ |
| | 240 | switch (condition_type) { |
| | 241 | case LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW: |
| | 242 | condition = lttng_condition_buffer_usage_low_create(); |
| | 243 | break; |
| | 244 | case LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH: |
| | 245 | condition = lttng_condition_buffer_usage_high_create(); |
| | 246 | break; |
| | 247 | default: |
| | 248 | loop_ret = 1; |
| | 249 | goto loop_end; |
| | 250 | } |
| | 251 | |
| | 252 | if (!condition) { |
| | 253 | loop_ret = 1; |
| | 254 | goto loop_end; |
| | 255 | |
| | 256 | } |
| | 257 | |
| | 258 | /* Prepare the condition for trigger registration test */ |
| | 259 | |
| | 260 | /* Set session name */ |
| | 261 | if ((1 << mask_position) & i) { |
| | 262 | condition_status = lttng_condition_buffer_usage_set_session_name( |
| | 263 | condition, session_name); |
| | 264 | if (condition_status != LTTNG_CONDITION_STATUS_OK) { |
| | 265 | loop_ret = 1; |
| | 266 | goto loop_end; |
| | 267 | } |
| | 268 | session_name_set = true; |
| | 269 | } |
| | 270 | mask_position++; |
| | 271 | |
| | 272 | /* Set channel name */ |
| | 273 | if ((1 << mask_position) & i) { |
| | 274 | condition_status = lttng_condition_buffer_usage_set_channel_name( |
| | 275 | condition, channel_name); |
| | 276 | if (condition_status != LTTNG_CONDITION_STATUS_OK) { |
| | 277 | loop_ret = 1; |
| | 278 | goto loop_end; |
| | 279 | } |
| | 280 | channel_name_set = true; |
| | 281 | } |
| | 282 | mask_position++; |
| | 283 | |
| | 284 | /* Set threshold ratio */ |
| | 285 | if ((1 << mask_position) & i) { |
| | 286 | condition_status = lttng_condition_buffer_usage_set_threshold_ratio( |
| | 287 | condition, 0.0); |
| | 288 | if (condition_status != LTTNG_CONDITION_STATUS_OK) { |
| | 289 | loop_ret = 1; |
| | 290 | goto loop_end; |
| | 291 | } |
| | 292 | threshold_ratio_set = true; |
| | 293 | } |
| | 294 | mask_position++; |
| | 295 | |
| | 296 | /* Set threshold byte */ |
| | 297 | if ((1 << mask_position) & i) { |
| | 298 | condition_status = lttng_condition_buffer_usage_set_threshold( |
| | 299 | condition, 0); |
| | 300 | if (condition_status != LTTNG_CONDITION_STATUS_OK) { |
| | 301 | loop_ret = 1; |
| | 302 | goto loop_end; |
| | 303 | } |
| | 304 | threshold_byte_set = true; |
| | 305 | } |
| | 306 | mask_position++; |
| | 307 | |
| | 308 | /* Set domain type */ |
| | 309 | if ((1 << mask_position) & i) { |
| | 310 | condition_status = lttng_condition_buffer_usage_set_domain_type( |
| | 311 | condition, LTTNG_DOMAIN_UST); |
| | 312 | if (condition_status != LTTNG_CONDITION_STATUS_OK) { |
| | 313 | loop_ret = 1; |
| | 314 | goto loop_end; |
| | 315 | } |
| | 316 | domain_type_set = true; |
| | 317 | } |
| | 318 | |
| | 319 | /* Safety check */ |
| | 320 | if (mask_position != test_vector_size -1) { |
| | 321 | assert("Logic error for test vector generation"); |
| | 322 | } |
| | 323 | |
| | 324 | loop_ret = asprintf(&test_tuple_string, "session name %s, channel name %s, threshold ratio %s, threshold byte %s, domain type %s", |
| | 325 | session_name_set ? "set" : "unset", |
| | 326 | channel_name_set ? "set" : "unset", |
| | 327 | threshold_ratio_set ? "set" : "unset", |
| | 328 | threshold_byte_set ? "set" : "unset", |
| | 329 | domain_type_set? "set" : "unset"); |
| | 330 | if (!test_tuple_string || loop_ret < 0) { |
| | 331 | loop_ret = 1; |
| | 332 | goto loop_end; |
| | 333 | } |
| | 334 | |
| | 335 | /* Create trigger */ |
| | 336 | trigger = lttng_trigger_create(condition, action); |
| | 337 | if (!trigger) { |
| | 338 | loop_ret = 1; |
| | 339 | goto loop_end; |
| | 340 | } |
| | 341 | |
| | 342 | loop_ret = lttng_register_trigger(trigger); |
| | 343 | |
| | 344 | loop_end: |
| | 345 | if (loop_ret == 1) { |
| | 346 | fail("Setup error occurred for tuple: %s", test_tuple_string); |
| | 347 | goto loop_cleanup; |
| | 348 | } |
| | 349 | |
| | 350 | /* This combination happens three times */ |
| | 351 | if (session_name_set && channel_name_set |
| | 352 | && (threshold_ratio_set || threshold_byte_set) |
| | 353 | && domain_type_set) { |
| | 354 | ok(loop_ret == 0, "Trigger is registered: %s", test_tuple_string); |
| | 355 | |
| | 356 | /* |
| | 357 | * Test that a trigger cannot be registered |
| | 358 | * multiple time. |
| | 359 | */ |
| | 360 | loop_ret = lttng_register_trigger(trigger); |
| | 361 | ok(loop_ret == -LTTNG_ERR_TRIGGER_EXISTS, "Re-register trigger fails as expected: %s", test_tuple_string); |
| | 362 | |
| | 363 | /* Test that a trigger can be unregistered */ |
| | 364 | loop_ret = lttng_unregister_trigger(trigger); |
| | 365 | ok(loop_ret == 0, "Unregister trigger: %s", test_tuple_string); |
| | 366 | |
| | 367 | /* |
| | 368 | * Test that unregistration of a non-previously |
| | 369 | * registered trigger fail. |
| | 370 | */ |
| | 371 | loop_ret = lttng_unregister_trigger(trigger); |
| | 372 | ok(loop_ret == -LTTNG_ERR_TRIGGER_NOT_FOUND, "Unregister of a non-registered trigger fails as expected: %s", test_tuple_string); |
| | 373 | } else { |
| | 374 | ok(loop_ret == -LTTNG_ERR_INVALID_TRIGGER, "Trigger is invalid as expected and cannot be registered: %s", test_tuple_string); |
| | 375 | } |
| | 376 | |
| | 377 | loop_cleanup: |
| | 378 | free(test_tuple_string); |
| | 379 | lttng_trigger_destroy(trigger); |
| | 380 | lttng_condition_destroy(condition); |
| | 381 | } |
| | 382 | |
| | 383 | end: |
| | 384 | lttng_action_destroy(action); |
| | 385 | } |
| | 386 | |
| | 387 | static |
| | 388 | void wait_data_pending(const char *session_name) |
| | 389 | { |
| | 390 | int ret; |
| | 391 | |
| | 392 | do { |
| | 393 | ret = lttng_data_pending(session_name); |
| | 394 | assert(ret >= 0); |
| | 395 | } while (ret != 0); |
| | 396 | } |
| | 397 | |
| | 398 | static |
| | 399 | int setup_buffer_usage_condition(struct lttng_condition *condition, |
| | 400 | const char *condition_name, |
| | 401 | const char *session_name, |
| | 402 | const char *channel_name, |
| | 403 | const enum lttng_domain_type domain_type) |
| | 404 | { |
| | 405 | enum lttng_condition_status condition_status; |
| | 406 | int ret = 0; |
| | 407 | |
| | 408 | condition_status = lttng_condition_buffer_usage_set_session_name( |
| | 409 | condition, session_name); |
| | 410 | if (condition_status != LTTNG_CONDITION_STATUS_OK) { |
| | 411 | fail("Failed to set session name on creation of condition `%s`", |
| | 412 | condition_name); |
| | 413 | ret = -1; |
| | 414 | goto end; |
| | 415 | } |
| | 416 | |
| | 417 | condition_status = lttng_condition_buffer_usage_set_channel_name( |
| | 418 | condition, channel_name); |
| | 419 | if (condition_status != LTTNG_CONDITION_STATUS_OK) { |
| | 420 | fail("Failed to set channel name on creation of condition `%s`", |
| | 421 | condition_name); |
| | 422 | ret = -1; |
| | 423 | goto end; |
| | 424 | } |
| | 425 | |
| | 426 | condition_status = lttng_condition_buffer_usage_set_domain_type( |
| | 427 | condition, domain_type); |
| | 428 | if (condition_status != LTTNG_CONDITION_STATUS_OK) { |
| | 429 | fail("Failed to set domain type on creation of condition `%s`", |
| | 430 | condition_name); |
| | 431 | ret = -1; |
| | 432 | goto end; |
| | 433 | } |
| | 434 | |
| | 435 | end: |
| | 436 | return ret; |
| | 437 | } |
| | 438 | |
| | 439 | static |
| | 440 | void test_invalid_channel_subscription( |
| | 441 | const enum lttng_domain_type domain_type) |
| | 442 | { |
| | 443 | enum lttng_condition_status condition_status; |
| | 444 | enum lttng_notification_channel_status nc_status; |
| | 445 | struct lttng_condition *dummy_condition = NULL; |
| | 446 | struct lttng_condition *dummy_invalid_condition = NULL; |
| | 447 | struct lttng_notification_channel *notification_channel = NULL; |
| | 448 | int ret = 0; |
| | 449 | |
| | 450 | notification_channel = lttng_notification_channel_create( |
| | 451 | lttng_session_daemon_notification_endpoint); |
| | 452 | ok(notification_channel, "Notification channel object creation"); |
| | 453 | if (!notification_channel) { |
| | 454 | goto end; |
| | 455 | } |
| | 456 | |
| | 457 | /* |
| | 458 | * Create a dummy, empty (thus invalid) condition to test error paths. |
| | 459 | */ |
| | 460 | dummy_invalid_condition = lttng_condition_buffer_usage_low_create(); |
| | 461 | if (!dummy_invalid_condition) { |
| | 462 | fail("Setup error on condition creation"); |
| | 463 | goto end; |
| | 464 | } |
| | 465 | |
| | 466 | /* |
| | 467 | * Test subscription and unsubscription of an invalid condition to/from |
| | 468 | * a channel. |
| | 469 | */ |
| | 470 | nc_status = lttng_notification_channel_subscribe( |
| | 471 | notification_channel, dummy_invalid_condition); |
| | 472 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INVALID, |
| | 473 | "Subscribing to an invalid condition"); |
| | 474 | |
| | 475 | nc_status = lttng_notification_channel_unsubscribe( |
| | 476 | notification_channel, dummy_invalid_condition); |
| | 477 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INVALID, |
| | 478 | "Unsubscribing from an invalid condition"); |
| | 479 | |
| | 480 | /* Create a valid dummy condition with a ratio of 0.5 */ |
| | 481 | dummy_condition = lttng_condition_buffer_usage_low_create(); |
| | 482 | if (!dummy_condition) { |
| | 483 | fail("Setup error on dummy_condition creation"); |
| | 484 | goto end; |
| | 485 | } |
| | 486 | |
| | 487 | condition_status = lttng_condition_buffer_usage_set_threshold_ratio( |
| | 488 | dummy_condition, 0.5); |
| | 489 | if (condition_status != LTTNG_CONDITION_STATUS_OK) { |
| | 490 | fail("Setup error on condition creation"); |
| | 491 | goto end; |
| | 492 | } |
| | 493 | |
| | 494 | ret = setup_buffer_usage_condition(dummy_condition, "dummy_condition", |
| | 495 | "dummy_session", "dummy_channel", domain_type); |
| | 496 | if (ret) { |
| | 497 | fail("Setup error on dummy condition creation"); |
| | 498 | goto end; |
| | 499 | } |
| | 500 | |
| | 501 | /* |
| | 502 | * Test subscription and unsubscription to/from a channel with invalid |
| | 503 | * parameters. |
| | 504 | */ |
| | 505 | nc_status = lttng_notification_channel_subscribe(NULL, NULL); |
| | 506 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INVALID, |
| | 507 | "Notification channel subscription is invalid: NULL, NULL"); |
| | 508 | |
| | 509 | nc_status = lttng_notification_channel_subscribe( |
| | 510 | notification_channel, NULL); |
| | 511 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INVALID, |
| | 512 | "Notification channel subscription is invalid: NON-NULL, NULL"); |
| | 513 | |
| | 514 | nc_status = lttng_notification_channel_subscribe(NULL, dummy_condition); |
| | 515 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INVALID, |
| | 516 | "Notification channel subscription is invalid: NULL, NON-NULL"); |
| | 517 | |
| | 518 | nc_status = lttng_notification_channel_unsubscribe( |
| | 519 | notification_channel, dummy_condition); |
| | 520 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_UNKNOWN_CONDITION, |
| | 521 | "Unsubscribing from a valid unknown condition"); |
| | 522 | |
| | 523 | end: |
| | 524 | lttng_notification_channel_destroy(notification_channel); |
| | 525 | lttng_condition_destroy(dummy_invalid_condition); |
| | 526 | lttng_condition_destroy(dummy_condition); |
| | 527 | return; |
| | 528 | } |
| | 529 | |
| | 530 | static void test_notification_channel(const char *session_name, |
| | 531 | const char *channel_name, |
| | 532 | const enum lttng_domain_type domain_type, |
| | 533 | const char **argv) |
| | 534 | { |
| | 535 | int ret = 0; |
| | 536 | enum lttng_condition_status condition_status; |
| | 537 | enum lttng_notification_channel_status nc_status; |
| | 538 | |
| | 539 | struct lttng_action *action = NULL; |
| | 540 | struct lttng_notification *notification = NULL; |
| | 541 | struct lttng_notification_channel *notification_channel = NULL; |
| | 542 | struct lttng_trigger *trigger = NULL; |
| | 543 | |
| | 544 | struct lttng_condition *low_condition = NULL; |
| | 545 | struct lttng_condition *high_condition = NULL; |
| | 546 | |
| | 547 | double low_ratio = 0.0; |
| | 548 | double high_ratio = 0.90; |
| | 549 | |
| | 550 | /* Set-up */ |
| | 551 | action = lttng_action_notify_create(); |
| | 552 | if (!action) { |
| | 553 | fail("Setup error on action creation"); |
| | 554 | goto end; |
| | 555 | } |
| | 556 | |
| | 557 | /* Register a low condition with a ratio */ |
| | 558 | low_condition = lttng_condition_buffer_usage_low_create(); |
| | 559 | if (!low_condition) { |
| | 560 | fail("Setup error on low_condition creation"); |
| | 561 | goto end; |
| | 562 | } |
| | 563 | condition_status = lttng_condition_buffer_usage_set_threshold_ratio( |
| | 564 | low_condition, low_ratio); |
| | 565 | if (condition_status != LTTNG_CONDITION_STATUS_OK) { |
| | 566 | fail("Setup error on low_condition creation"); |
| | 567 | goto end; |
| | 568 | } |
| | 569 | |
| | 570 | ret = setup_buffer_usage_condition(low_condition, "low_condition", |
| | 571 | session_name, channel_name, domain_type); |
| | 572 | if (ret) { |
| | 573 | fail("Setup error on low condition creation"); |
| | 574 | goto end; |
| | 575 | } |
| | 576 | |
| | 577 | /* Register a high condition with a ratio */ |
| | 578 | high_condition = lttng_condition_buffer_usage_high_create(); |
| | 579 | if (!high_condition) { |
| | 580 | fail("Setup error on high_condition creation"); |
| | 581 | goto end; |
| | 582 | } |
| | 583 | |
| | 584 | condition_status = lttng_condition_buffer_usage_set_threshold_ratio( |
| | 585 | high_condition, high_ratio); |
| | 586 | if (condition_status != LTTNG_CONDITION_STATUS_OK) { |
| | 587 | fail("Setup error on high_condition creation"); |
| | 588 | goto end; |
| | 589 | } |
| | 590 | |
| | 591 | ret = setup_buffer_usage_condition(high_condition, "high_condition", |
| | 592 | session_name, channel_name, domain_type); |
| | 593 | if (ret) { |
| | 594 | fail("Setup error on high condition creation"); |
| | 595 | goto end; |
| | 596 | } |
| | 597 | |
| | 598 | /* Register the triggers for low and high condition */ |
| | 599 | trigger = lttng_trigger_create(low_condition, action); |
| | 600 | if (!trigger) { |
| | 601 | fail("Setup error on low trigger creation"); |
| | 602 | goto end; |
| | 603 | } |
| | 604 | |
| | 605 | ret = lttng_register_trigger(trigger); |
| | 606 | if (ret) { |
| | 607 | fail("Setup error on low trigger registration"); |
| | 608 | goto end; |
| | 609 | } |
| | 610 | |
| | 611 | lttng_trigger_destroy(trigger); |
| | 612 | trigger = NULL; |
| | 613 | |
| | 614 | trigger = lttng_trigger_create(high_condition, action); |
| | 615 | if (!trigger) { |
| | 616 | fail("Setup error on high trigger creation"); |
| | 617 | goto end; |
| | 618 | } |
| | 619 | |
| | 620 | ret = lttng_register_trigger(trigger); |
| | 621 | if (ret) { |
| | 622 | fail("Setup error on high trigger registration"); |
| | 623 | goto end; |
| | 624 | } |
| | 625 | |
| | 626 | /* Begin testing */ |
| | 627 | notification_channel = lttng_notification_channel_create( |
| | 628 | lttng_session_daemon_notification_endpoint); |
| | 629 | ok(notification_channel, "Notification channel object creation"); |
| | 630 | if (!notification_channel) { |
| | 631 | goto end; |
| | 632 | } |
| | 633 | |
| | 634 | /* Subscribe a valid low condition */ |
| | 635 | nc_status = lttng_notification_channel_subscribe( |
| | 636 | notification_channel, low_condition); |
| | 637 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK, |
| | 638 | "Subscribe to condition"); |
| | 639 | |
| | 640 | /* Subscribe a valid high condition */ |
| | 641 | nc_status = lttng_notification_channel_subscribe( |
| | 642 | notification_channel, high_condition); |
| | 643 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK, |
| | 644 | "Subscribe to condition"); |
| | 645 | |
| | 646 | nc_status = lttng_notification_channel_subscribe( |
| | 647 | notification_channel, low_condition); |
| | 648 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_ALREADY_SUBSCRIBED, |
| | 649 | "Subscribe to a condition for which subscription was already done"); |
| | 650 | |
| | 651 | nc_status = lttng_notification_channel_subscribe( |
| | 652 | notification_channel, high_condition); |
| | 653 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_ALREADY_SUBSCRIBED, |
| | 654 | "Subscribe to a condition for which subscription was already done"); |
| | 655 | |
| | 656 | resume_application(); |
| | 657 | |
| | 658 | /* Wait for notification to happen */ |
| | 659 | stop_consumer(argv); |
| | 660 | lttng_start_tracing(session_name); |
| | 661 | |
| | 662 | /* Wait for high notification */ |
| | 663 | do { |
| | 664 | nc_status = lttng_notification_channel_get_next_notification( |
| | 665 | notification_channel, ¬ification); |
| | 666 | } while (nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INTERRUPTED); |
| | 667 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK && notification && |
| | 668 | lttng_condition_get_type(lttng_notification_get_condition( |
| | 669 | notification)) == |
| | 670 | LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH, |
| | 671 | "High notification received after intermediary communication"); |
| | 672 | lttng_notification_destroy(notification); |
| | 673 | notification = NULL; |
| | 674 | |
| | 675 | suspend_application(); |
| | 676 | lttng_stop_tracing_no_wait(session_name); |
| | 677 | resume_consumer(argv); |
| | 678 | wait_data_pending(session_name); |
| | 679 | |
| | 680 | /* |
| | 681 | * Test that communication still work even if there is notification |
| | 682 | * waiting for consumption. |
| | 683 | */ |
| | 684 | |
| | 685 | nc_status = lttng_notification_channel_unsubscribe( |
| | 686 | notification_channel, low_condition); |
| | 687 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK, |
| | 688 | "Unsubscribe with pending notification"); |
| | 689 | |
| | 690 | nc_status = lttng_notification_channel_subscribe( |
| | 691 | notification_channel, low_condition); |
| | 692 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK, |
| | 693 | "Subscribe with pending notification"); |
| | 694 | |
| | 695 | do { |
| | 696 | nc_status = lttng_notification_channel_get_next_notification( |
| | 697 | notification_channel, ¬ification); |
| | 698 | } while (nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INTERRUPTED); |
| | 699 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK && notification && |
| | 700 | lttng_condition_get_type(lttng_notification_get_condition( |
| | 701 | notification)) == |
| | 702 | LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW, |
| | 703 | "Low notification received after intermediary communication"); |
| | 704 | lttng_notification_destroy(notification); |
| | 705 | notification = NULL; |
| | 706 | |
| | 707 | /* Stop consumer to force a high notification */ |
| | 708 | stop_consumer(argv); |
| | 709 | resume_application(); |
| | 710 | lttng_start_tracing(session_name); |
| | 711 | |
| | 712 | do { |
| | 713 | nc_status = lttng_notification_channel_get_next_notification( |
| | 714 | notification_channel, ¬ification); |
| | 715 | } while (nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INTERRUPTED); |
| | 716 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK && notification && |
| | 717 | lttng_condition_get_type(lttng_notification_get_condition( |
| | 718 | notification)) == |
| | 719 | LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH, |
| | 720 | "High notification received after intermediary communication"); |
| | 721 | lttng_notification_destroy(notification); |
| | 722 | notification = NULL; |
| | 723 | |
| | 724 | suspend_application(); |
| | 725 | lttng_stop_tracing_no_wait(session_name); |
| | 726 | resume_consumer(argv); |
| | 727 | wait_data_pending(session_name); |
| | 728 | |
| | 729 | do { |
| | 730 | nc_status = lttng_notification_channel_get_next_notification( |
| | 731 | notification_channel, ¬ification); |
| | 732 | } while (nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INTERRUPTED); |
| | 733 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK && notification && |
| | 734 | lttng_condition_get_type(lttng_notification_get_condition( |
| | 735 | notification)) == |
| | 736 | LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW, |
| | 737 | "Low notification received after re-subscription"); |
| | 738 | lttng_notification_destroy(notification); |
| | 739 | notification = NULL; |
| | 740 | |
| | 741 | stop_consumer(argv); |
| | 742 | resume_application(); |
| | 743 | /* Stop consumer to force a high notification */ |
| | 744 | lttng_start_tracing(session_name); |
| | 745 | |
| | 746 | do { |
| | 747 | nc_status = lttng_notification_channel_get_next_notification( |
| | 748 | notification_channel, ¬ification); |
| | 749 | } while (nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_INTERRUPTED); |
| | 750 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK && notification && |
| | 751 | lttng_condition_get_type(lttng_notification_get_condition( |
| | 752 | notification)) == |
| | 753 | LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH, |
| | 754 | "High notification"); |
| | 755 | lttng_notification_destroy(notification); |
| | 756 | notification = NULL; |
| | 757 | |
| | 758 | suspend_application(); |
| | 759 | |
| | 760 | /* Resume consumer to allow event consumption */ |
| | 761 | lttng_stop_tracing_no_wait(session_name); |
| | 762 | resume_consumer(argv); |
| | 763 | wait_data_pending(session_name); |
| | 764 | |
| | 765 | nc_status = lttng_notification_channel_unsubscribe( |
| | 766 | notification_channel, low_condition); |
| | 767 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK, |
| | 768 | "Unsubscribe low condition with pending notification"); |
| | 769 | |
| | 770 | nc_status = lttng_notification_channel_unsubscribe( |
| | 771 | notification_channel, high_condition); |
| | 772 | ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK, |
| | 773 | "Unsubscribe high condition with pending notification"); |
| | 774 | |
| | 775 | end: |
| | 776 | lttng_notification_channel_destroy(notification_channel); |
| | 777 | lttng_trigger_destroy(trigger); |
| | 778 | lttng_action_destroy(action); |
| | 779 | lttng_condition_destroy(low_condition); |
| | 780 | lttng_condition_destroy(high_condition); |
| | 781 | } |
| | 782 | |
| | 783 | int main(int argc, const char *argv[]) |
| | 784 | { |
| | 785 | const char *session_name = NULL; |
| | 786 | const char *channel_name = NULL; |
| | 787 | const char *domain_type_string = NULL; |
| | 788 | enum lttng_domain_type domain_type = LTTNG_DOMAIN_NONE; |
| | 789 | |
| | 790 | plan_tests(NUM_TESTS); |
| | 791 | |
| | 792 | /* Argument 6 and upward are named pipe location for consumerd control */ |
| | 793 | named_pipe_args_start = 6; |
| | 794 | |
| | 795 | if (argc < 7) { |
| | 796 | fail("Missing parameter for tests to run %d", argc); |
| | 797 | goto error; |
| | 798 | } |
| | 799 | |
| | 800 | nb_args = argc; |
| | 801 | |
| | 802 | domain_type_string = argv[1]; |
| | 803 | session_name = argv[2]; |
| | 804 | channel_name = argv[3]; |
| | 805 | app_pid = (pid_t) atoi(argv[4]); |
| | 806 | app_state_file = argv[5]; |
| | 807 | |
| | 808 | if (!strcmp("LTTNG_DOMAIN_UST", domain_type_string)) { |
| | 809 | domain_type = LTTNG_DOMAIN_UST; |
| | 810 | } |
| | 811 | if (!strcmp("LTTNG_DOMAIN_KERNEL", domain_type_string)) { |
| | 812 | domain_type = LTTNG_DOMAIN_KERNEL; |
| | 813 | } |
| | 814 | if (domain_type == LTTNG_DOMAIN_NONE) { |
| | 815 | fail("Unknown domain type"); |
| | 816 | goto error; |
| | 817 | } |
| | 818 | |
| | 819 | /* |
| | 820 | * Test cases are responsible for resuming the app when needed and |
| | 821 | * making sure it's suspended when returning. |
| | 822 | */ |
| | 823 | suspend_application(); |
| | 824 | |
| | 825 | diag("Test trigger for domain %s with buffer_usage_low condition", domain_type_string); |
| | 826 | test_triggers_buffer_usage_condition(session_name, channel_name, domain_type, LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW); |
| | 827 | diag("Test trigger for domain %s with buffer_usage_high condition", domain_type_string); |
| | 828 | test_triggers_buffer_usage_condition(session_name, channel_name, domain_type, LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH); |
| | 829 | |
| | 830 | /* Basic error path check. */ |
| | 831 | test_invalid_channel_subscription(domain_type); |
| | 832 | |
| | 833 | diag("Test notification channel api for domain %s", domain_type_string); |
| | 834 | test_notification_channel(session_name, channel_name, domain_type, argv); |
| | 835 | error: |
| | 836 | return exit_status(); |
| | 837 | } |
| | 838 | |
projects / lttng-tools.git / blame_incremental