| 1 | /* |
| 2 | * Copyright (C) 2017 Julien Desfossez <jdesfossez@efficios.com> |
| 3 | * |
| 4 | * SPDX-License-Identifier: LGPL-2.1-only |
| 5 | * |
| 6 | */ |
| 7 | |
| 8 | #define _LGPL_SOURCE |
| 9 | #include <assert.h> |
| 10 | #include <string.h> |
| 11 | |
| 12 | #include <lttng/lttng-error.h> |
| 13 | #include <lttng/rotation.h> |
| 14 | #include <lttng/location-internal.h> |
| 15 | #include <lttng/rotate-internal.h> |
| 16 | #include <common/sessiond-comm/sessiond-comm.h> |
| 17 | #include <common/macros.h> |
| 18 | |
| 19 | #include "lttng-ctl-helper.h" |
| 20 | |
| 21 | static |
| 22 | enum lttng_rotation_status ask_rotation_info( |
| 23 | struct lttng_rotation_handle *rotation_handle, |
| 24 | struct lttng_rotation_get_info_return **info) |
| 25 | { |
| 26 | /* lsm.get_rotation_state.rotation_id */ |
| 27 | struct lttcomm_session_msg lsm; |
| 28 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 29 | int ret; |
| 30 | |
| 31 | if (!rotation_handle || !info) { |
| 32 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 33 | goto end; |
| 34 | } |
| 35 | |
| 36 | memset(&lsm, 0, sizeof(lsm)); |
| 37 | lsm.cmd_type = LTTNG_ROTATION_GET_INFO; |
| 38 | lsm.u.get_rotation_info.rotation_id = rotation_handle->rotation_id; |
| 39 | |
| 40 | ret = lttng_strncpy(lsm.session.name, rotation_handle->session_name, |
| 41 | sizeof(lsm.session.name)); |
| 42 | if (ret) { |
| 43 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 44 | goto end; |
| 45 | } |
| 46 | |
| 47 | ret = lttng_ctl_ask_sessiond(&lsm, (void **) info); |
| 48 | if (ret < 0) { |
| 49 | status = LTTNG_ROTATION_STATUS_ERROR; |
| 50 | goto end; |
| 51 | } |
| 52 | end: |
| 53 | return status; |
| 54 | |
| 55 | } |
| 56 | |
| 57 | static |
| 58 | struct lttng_trace_archive_location * |
| 59 | create_trace_archive_location_from_get_info( |
| 60 | const struct lttng_rotation_get_info_return *info) |
| 61 | { |
| 62 | struct lttng_trace_archive_location *location; |
| 63 | |
| 64 | switch (info->location_type) { |
| 65 | case LTTNG_TRACE_ARCHIVE_LOCATION_TYPE_LOCAL: |
| 66 | location = lttng_trace_archive_location_local_create( |
| 67 | info->location.local.absolute_path); |
| 68 | break; |
| 69 | case LTTNG_TRACE_ARCHIVE_LOCATION_TYPE_RELAY: |
| 70 | location = lttng_trace_archive_location_relay_create( |
| 71 | info->location.relay.host, |
| 72 | info->location.relay.protocol, |
| 73 | info->location.relay.ports.control, |
| 74 | info->location.relay.ports.data, |
| 75 | info->location.relay.relative_path); |
| 76 | break; |
| 77 | default: |
| 78 | location = NULL; |
| 79 | break; |
| 80 | } |
| 81 | return location; |
| 82 | } |
| 83 | |
| 84 | enum lttng_rotation_status lttng_rotation_handle_get_state( |
| 85 | struct lttng_rotation_handle *rotation_handle, |
| 86 | enum lttng_rotation_state *state) |
| 87 | { |
| 88 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 89 | struct lttng_rotation_get_info_return *info = NULL; |
| 90 | |
| 91 | if (!rotation_handle || !state) { |
| 92 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 93 | goto end; |
| 94 | } |
| 95 | |
| 96 | status = ask_rotation_info(rotation_handle, &info); |
| 97 | if (status != LTTNG_ROTATION_STATUS_OK) { |
| 98 | goto end; |
| 99 | } |
| 100 | |
| 101 | *state = (enum lttng_rotation_state) info->status; |
| 102 | if (rotation_handle->archive_location || |
| 103 | *state != LTTNG_ROTATION_STATE_COMPLETED) { |
| 104 | /* |
| 105 | * The path is only provided by the sessiond once |
| 106 | * the session rotation is completed, but not expired. |
| 107 | */ |
| 108 | goto end; |
| 109 | } |
| 110 | |
| 111 | /* |
| 112 | * Cache the location since the rotation may expire before the user |
| 113 | * has a chance to query it. |
| 114 | */ |
| 115 | rotation_handle->archive_location = |
| 116 | create_trace_archive_location_from_get_info(info); |
| 117 | if (!rotation_handle->archive_location) { |
| 118 | status = LTTNG_ROTATION_STATUS_ERROR; |
| 119 | goto end; |
| 120 | } |
| 121 | end: |
| 122 | free(info); |
| 123 | return status; |
| 124 | } |
| 125 | |
| 126 | enum lttng_rotation_status lttng_rotation_handle_get_archive_location( |
| 127 | struct lttng_rotation_handle *rotation_handle, |
| 128 | const struct lttng_trace_archive_location **location) |
| 129 | { |
| 130 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 131 | struct lttng_rotation_get_info_return *info = NULL; |
| 132 | |
| 133 | if (!rotation_handle || !location) { |
| 134 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 135 | goto end; |
| 136 | } |
| 137 | |
| 138 | /* Use the cached location we got from a previous query. */ |
| 139 | if (rotation_handle->archive_location) { |
| 140 | *location = rotation_handle->archive_location; |
| 141 | goto end; |
| 142 | } |
| 143 | |
| 144 | status = ask_rotation_info(rotation_handle, &info); |
| 145 | if (status != LTTNG_ROTATION_STATUS_OK) { |
| 146 | goto end; |
| 147 | } |
| 148 | |
| 149 | if ((enum lttng_rotation_state) info->status != |
| 150 | LTTNG_ROTATION_STATE_COMPLETED) { |
| 151 | status = LTTNG_ROTATION_STATUS_UNAVAILABLE; |
| 152 | goto end; |
| 153 | } |
| 154 | |
| 155 | rotation_handle->archive_location = |
| 156 | create_trace_archive_location_from_get_info(info); |
| 157 | if (!rotation_handle->archive_location) { |
| 158 | status = LTTNG_ROTATION_STATUS_ERROR; |
| 159 | goto end; |
| 160 | } |
| 161 | end: |
| 162 | free(info); |
| 163 | return status; |
| 164 | } |
| 165 | |
| 166 | void lttng_rotation_handle_destroy( |
| 167 | struct lttng_rotation_handle *rotation_handle) |
| 168 | { |
| 169 | if (!rotation_handle) { |
| 170 | return; |
| 171 | } |
| 172 | lttng_trace_archive_location_destroy(rotation_handle->archive_location); |
| 173 | free(rotation_handle); |
| 174 | } |
| 175 | |
| 176 | static |
| 177 | int init_rotation_handle(struct lttng_rotation_handle *rotation_handle, |
| 178 | const char *session_name, |
| 179 | struct lttng_rotate_session_return *rotate_return) |
| 180 | { |
| 181 | int ret; |
| 182 | |
| 183 | ret = lttng_strncpy(rotation_handle->session_name, session_name, |
| 184 | sizeof(rotation_handle->session_name)); |
| 185 | if (ret) { |
| 186 | goto end; |
| 187 | } |
| 188 | |
| 189 | rotation_handle->rotation_id = rotate_return->rotation_id; |
| 190 | end: |
| 191 | return ret; |
| 192 | } |
| 193 | |
| 194 | /* |
| 195 | * Rotate the output folder of the session. |
| 196 | * |
| 197 | * Return 0 on success else a negative LTTng error code. |
| 198 | */ |
| 199 | int lttng_rotate_session(const char *session_name, |
| 200 | struct lttng_rotation_immediate_descriptor *descriptor, |
| 201 | struct lttng_rotation_handle **rotation_handle) |
| 202 | { |
| 203 | struct lttcomm_session_msg lsm; |
| 204 | struct lttng_rotate_session_return *rotate_return = NULL; |
| 205 | int ret; |
| 206 | size_t session_name_len; |
| 207 | |
| 208 | if (!session_name) { |
| 209 | ret = -LTTNG_ERR_INVALID; |
| 210 | goto end; |
| 211 | } |
| 212 | |
| 213 | session_name_len = strlen(session_name); |
| 214 | if (session_name_len >= sizeof(lsm.session.name) || |
| 215 | session_name_len >= member_sizeof(struct lttng_rotation_handle, session_name)) { |
| 216 | ret = -LTTNG_ERR_INVALID; |
| 217 | goto end; |
| 218 | } |
| 219 | |
| 220 | memset(&lsm, 0, sizeof(lsm)); |
| 221 | lsm.cmd_type = LTTNG_ROTATE_SESSION; |
| 222 | |
| 223 | ret = lttng_strncpy(lsm.session.name, session_name, |
| 224 | sizeof(lsm.session.name)); |
| 225 | /* Source length already validated. */ |
| 226 | assert(ret == 0); |
| 227 | |
| 228 | ret = lttng_ctl_ask_sessiond(&lsm, (void **) &rotate_return); |
| 229 | if (ret <= 0) { |
| 230 | *rotation_handle = NULL; |
| 231 | goto end; |
| 232 | } |
| 233 | |
| 234 | *rotation_handle = zmalloc(sizeof(struct lttng_rotation_handle)); |
| 235 | if (!*rotation_handle) { |
| 236 | ret = -LTTNG_ERR_NOMEM; |
| 237 | goto end; |
| 238 | } |
| 239 | |
| 240 | init_rotation_handle(*rotation_handle, session_name, rotate_return); |
| 241 | |
| 242 | ret = 0; |
| 243 | |
| 244 | end: |
| 245 | free(rotate_return); |
| 246 | return ret; |
| 247 | } |
| 248 | |
| 249 | /* |
| 250 | * Update the automatic rotation parameters. |
| 251 | * 'add' as true enables the provided schedule, false removes the shedule. |
| 252 | * |
| 253 | * The external API makes it appear as though arbitrary schedules can |
| 254 | * be added or removed at will. However, the session daemon is |
| 255 | * currently limited to one schedule per type (per session). |
| 256 | * |
| 257 | * The additional flexibility of the public API is offered for future |
| 258 | * rotation schedules that could indicate more precise criteria than |
| 259 | * size and time (e.g. a domain) where it could make sense to add |
| 260 | * multiple schedules of a given type to a session. |
| 261 | * |
| 262 | * Hence, the exact schedule that the user wishes to remove (and not |
| 263 | * just its type) must be passed so that the session daemon can |
| 264 | * validate that is exists before clearing it. |
| 265 | */ |
| 266 | static |
| 267 | enum lttng_rotation_status lttng_rotation_update_schedule( |
| 268 | const char *session_name, |
| 269 | const struct lttng_rotation_schedule *schedule, |
| 270 | bool add) |
| 271 | { |
| 272 | struct lttcomm_session_msg lsm; |
| 273 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 274 | int ret; |
| 275 | |
| 276 | if (!session_name || !schedule) { |
| 277 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 278 | goto end; |
| 279 | } |
| 280 | |
| 281 | if (strlen(session_name) >= sizeof(lsm.session.name)) { |
| 282 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 283 | goto end; |
| 284 | } |
| 285 | |
| 286 | memset(&lsm, 0, sizeof(lsm)); |
| 287 | lsm.cmd_type = LTTNG_ROTATION_SET_SCHEDULE; |
| 288 | ret = lttng_strncpy(lsm.session.name, session_name, |
| 289 | sizeof(lsm.session.name)); |
| 290 | /* Source length already validated. */ |
| 291 | assert(ret == 0); |
| 292 | |
| 293 | lsm.u.rotation_set_schedule.type = (uint32_t) schedule->type; |
| 294 | switch (schedule->type) { |
| 295 | case LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD: |
| 296 | { |
| 297 | uint64_t threshold; |
| 298 | |
| 299 | status = lttng_rotation_schedule_size_threshold_get_threshold( |
| 300 | schedule, &threshold); |
| 301 | if (status != LTTNG_ROTATION_STATUS_OK) { |
| 302 | if (status == LTTNG_ROTATION_STATUS_UNAVAILABLE) { |
| 303 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 304 | } |
| 305 | goto end; |
| 306 | } |
| 307 | lsm.u.rotation_set_schedule.value = threshold; |
| 308 | lsm.u.rotation_set_schedule.set = !!add; |
| 309 | break; |
| 310 | } |
| 311 | case LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC: |
| 312 | { |
| 313 | uint64_t period; |
| 314 | |
| 315 | status = lttng_rotation_schedule_periodic_get_period( |
| 316 | schedule, &period); |
| 317 | if (status != LTTNG_ROTATION_STATUS_OK) { |
| 318 | if (status == LTTNG_ROTATION_STATUS_UNAVAILABLE) { |
| 319 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 320 | } |
| 321 | goto end; |
| 322 | } |
| 323 | lsm.u.rotation_set_schedule.value = period; |
| 324 | lsm.u.rotation_set_schedule.set = !!add; |
| 325 | break; |
| 326 | } |
| 327 | default: |
| 328 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 329 | goto end; |
| 330 | } |
| 331 | |
| 332 | ret = lttng_ctl_ask_sessiond(&lsm, NULL); |
| 333 | if (ret >= 0) { |
| 334 | goto end; |
| 335 | } |
| 336 | |
| 337 | switch (-ret) { |
| 338 | case LTTNG_ERR_ROTATION_SCHEDULE_SET: |
| 339 | status = LTTNG_ROTATION_STATUS_SCHEDULE_ALREADY_SET; |
| 340 | break; |
| 341 | case LTTNG_ERR_ROTATION_SCHEDULE_NOT_SET: |
| 342 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 343 | break; |
| 344 | default: |
| 345 | status = LTTNG_ROTATION_STATUS_ERROR; |
| 346 | } |
| 347 | end: |
| 348 | return status; |
| 349 | } |
| 350 | |
| 351 | static |
| 352 | struct lttng_rotation_schedules *lttng_rotation_schedules_create(void) |
| 353 | { |
| 354 | return zmalloc(sizeof(struct lttng_rotation_schedules)); |
| 355 | } |
| 356 | |
| 357 | static |
| 358 | void lttng_schedules_add(struct lttng_rotation_schedules *schedules, |
| 359 | struct lttng_rotation_schedule *schedule) |
| 360 | { |
| 361 | schedules->schedules[schedules->count++] = schedule; |
| 362 | } |
| 363 | |
| 364 | static |
| 365 | int get_schedules(const char *session_name, |
| 366 | struct lttng_rotation_schedules **_schedules) |
| 367 | { |
| 368 | int ret; |
| 369 | struct lttcomm_session_msg lsm; |
| 370 | struct lttng_session_list_schedules_return *schedules_comm = NULL; |
| 371 | struct lttng_rotation_schedules *schedules = NULL; |
| 372 | struct lttng_rotation_schedule *periodic = NULL, *size = NULL; |
| 373 | |
| 374 | if (!session_name) { |
| 375 | ret = -LTTNG_ERR_INVALID; |
| 376 | goto end; |
| 377 | } |
| 378 | |
| 379 | memset(&lsm, 0, sizeof(lsm)); |
| 380 | lsm.cmd_type = LTTNG_SESSION_LIST_ROTATION_SCHEDULES; |
| 381 | ret = lttng_strncpy(lsm.session.name, session_name, |
| 382 | sizeof(lsm.session.name)); |
| 383 | if (ret) { |
| 384 | ret = -LTTNG_ERR_INVALID; |
| 385 | goto end; |
| 386 | } |
| 387 | |
| 388 | ret = lttng_ctl_ask_sessiond(&lsm, (void **) &schedules_comm); |
| 389 | if (ret < 0) { |
| 390 | goto end; |
| 391 | } |
| 392 | |
| 393 | schedules = lttng_rotation_schedules_create(); |
| 394 | if (!schedules) { |
| 395 | ret = -LTTNG_ERR_NOMEM; |
| 396 | goto end; |
| 397 | } |
| 398 | |
| 399 | if (schedules_comm->periodic.set == 1) { |
| 400 | enum lttng_rotation_status status; |
| 401 | |
| 402 | periodic = lttng_rotation_schedule_periodic_create(); |
| 403 | if (!periodic) { |
| 404 | ret = -LTTNG_ERR_NOMEM; |
| 405 | goto end; |
| 406 | } |
| 407 | |
| 408 | status = lttng_rotation_schedule_periodic_set_period( |
| 409 | periodic, schedules_comm->periodic.value); |
| 410 | if (status != LTTNG_ROTATION_STATUS_OK) { |
| 411 | /* |
| 412 | * This would imply that the session daemon returned |
| 413 | * an invalid periodic rotation schedule value. |
| 414 | */ |
| 415 | ret = -LTTNG_ERR_UNK; |
| 416 | goto end; |
| 417 | } |
| 418 | |
| 419 | lttng_schedules_add(schedules, periodic); |
| 420 | periodic = NULL; |
| 421 | } |
| 422 | |
| 423 | if (schedules_comm->size.set == 1) { |
| 424 | enum lttng_rotation_status status; |
| 425 | |
| 426 | size = lttng_rotation_schedule_size_threshold_create(); |
| 427 | if (!size) { |
| 428 | ret = -LTTNG_ERR_NOMEM; |
| 429 | goto end; |
| 430 | } |
| 431 | |
| 432 | status = lttng_rotation_schedule_size_threshold_set_threshold( |
| 433 | size, schedules_comm->size.value); |
| 434 | if (status != LTTNG_ROTATION_STATUS_OK) { |
| 435 | /* |
| 436 | * This would imply that the session daemon returned |
| 437 | * an invalid size threshold schedule value. |
| 438 | */ |
| 439 | ret = -LTTNG_ERR_UNK; |
| 440 | goto end; |
| 441 | } |
| 442 | |
| 443 | lttng_schedules_add(schedules, size); |
| 444 | size = NULL; |
| 445 | } |
| 446 | |
| 447 | ret = LTTNG_OK; |
| 448 | end: |
| 449 | free(schedules_comm); |
| 450 | free(periodic); |
| 451 | free(size); |
| 452 | *_schedules = schedules; |
| 453 | return ret; |
| 454 | } |
| 455 | |
| 456 | enum lttng_rotation_schedule_type lttng_rotation_schedule_get_type( |
| 457 | const struct lttng_rotation_schedule *schedule) |
| 458 | { |
| 459 | return schedule ? schedule->type : LTTNG_ROTATION_SCHEDULE_TYPE_UNKNOWN; |
| 460 | } |
| 461 | |
| 462 | struct lttng_rotation_schedule * |
| 463 | lttng_rotation_schedule_size_threshold_create(void) |
| 464 | { |
| 465 | struct lttng_rotation_schedule_size_threshold *schedule; |
| 466 | |
| 467 | schedule = zmalloc(sizeof(*schedule)); |
| 468 | if (!schedule) { |
| 469 | goto end; |
| 470 | } |
| 471 | |
| 472 | schedule->parent.type = LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD; |
| 473 | end: |
| 474 | return &schedule->parent; |
| 475 | } |
| 476 | |
| 477 | enum lttng_rotation_status |
| 478 | lttng_rotation_schedule_size_threshold_get_threshold( |
| 479 | const struct lttng_rotation_schedule *schedule, |
| 480 | uint64_t *size_threshold_bytes) |
| 481 | { |
| 482 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 483 | struct lttng_rotation_schedule_size_threshold *size_schedule; |
| 484 | |
| 485 | if (!schedule || !size_threshold_bytes || |
| 486 | schedule->type != LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD) { |
| 487 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 488 | goto end; |
| 489 | } |
| 490 | |
| 491 | size_schedule = container_of(schedule, |
| 492 | struct lttng_rotation_schedule_size_threshold, |
| 493 | parent); |
| 494 | if (size_schedule->size.set) { |
| 495 | *size_threshold_bytes = size_schedule->size.bytes; |
| 496 | } else { |
| 497 | status = LTTNG_ROTATION_STATUS_UNAVAILABLE; |
| 498 | goto end; |
| 499 | } |
| 500 | end: |
| 501 | return status; |
| 502 | } |
| 503 | |
| 504 | enum lttng_rotation_status |
| 505 | lttng_rotation_schedule_size_threshold_set_threshold( |
| 506 | struct lttng_rotation_schedule *schedule, |
| 507 | uint64_t size_threshold_bytes) |
| 508 | { |
| 509 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 510 | struct lttng_rotation_schedule_size_threshold *size_schedule; |
| 511 | |
| 512 | if (!schedule || size_threshold_bytes == 0 || |
| 513 | size_threshold_bytes == -1ULL || |
| 514 | schedule->type != LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD) { |
| 515 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 516 | goto end; |
| 517 | } |
| 518 | |
| 519 | size_schedule = container_of(schedule, |
| 520 | struct lttng_rotation_schedule_size_threshold, |
| 521 | parent); |
| 522 | size_schedule->size.bytes = size_threshold_bytes; |
| 523 | size_schedule->size.set = true; |
| 524 | end: |
| 525 | return status; |
| 526 | } |
| 527 | |
| 528 | struct lttng_rotation_schedule * |
| 529 | lttng_rotation_schedule_periodic_create(void) |
| 530 | { |
| 531 | struct lttng_rotation_schedule_periodic *schedule; |
| 532 | |
| 533 | schedule = zmalloc(sizeof(*schedule)); |
| 534 | if (!schedule) { |
| 535 | goto end; |
| 536 | } |
| 537 | |
| 538 | schedule->parent.type = LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC; |
| 539 | end: |
| 540 | return &schedule->parent; |
| 541 | } |
| 542 | |
| 543 | enum lttng_rotation_status |
| 544 | lttng_rotation_schedule_periodic_get_period( |
| 545 | const struct lttng_rotation_schedule *schedule, |
| 546 | uint64_t *period_us) |
| 547 | { |
| 548 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 549 | struct lttng_rotation_schedule_periodic *periodic_schedule; |
| 550 | |
| 551 | if (!schedule || !period_us || |
| 552 | schedule->type != LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC) { |
| 553 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 554 | goto end; |
| 555 | } |
| 556 | |
| 557 | periodic_schedule = container_of(schedule, |
| 558 | struct lttng_rotation_schedule_periodic, |
| 559 | parent); |
| 560 | if (periodic_schedule->period.set) { |
| 561 | *period_us = periodic_schedule->period.us; |
| 562 | } else { |
| 563 | status = LTTNG_ROTATION_STATUS_UNAVAILABLE; |
| 564 | goto end; |
| 565 | } |
| 566 | end: |
| 567 | return status; |
| 568 | } |
| 569 | |
| 570 | enum lttng_rotation_status |
| 571 | lttng_rotation_schedule_periodic_set_period( |
| 572 | struct lttng_rotation_schedule *schedule, |
| 573 | uint64_t period_us) |
| 574 | { |
| 575 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 576 | struct lttng_rotation_schedule_periodic *periodic_schedule; |
| 577 | |
| 578 | if (!schedule || period_us == 0 || period_us == -1ULL || |
| 579 | schedule->type != LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC) { |
| 580 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 581 | goto end; |
| 582 | } |
| 583 | |
| 584 | periodic_schedule = container_of(schedule, |
| 585 | struct lttng_rotation_schedule_periodic, |
| 586 | parent); |
| 587 | periodic_schedule->period.us = period_us; |
| 588 | periodic_schedule->period.set = true; |
| 589 | end: |
| 590 | return status; |
| 591 | } |
| 592 | |
| 593 | void lttng_rotation_schedule_destroy(struct lttng_rotation_schedule *schedule) |
| 594 | { |
| 595 | if (!schedule) { |
| 596 | return; |
| 597 | } |
| 598 | free(schedule); |
| 599 | } |
| 600 | |
| 601 | void lttng_rotation_schedules_destroy( |
| 602 | struct lttng_rotation_schedules *schedules) |
| 603 | { |
| 604 | unsigned int i; |
| 605 | |
| 606 | if (!schedules) { |
| 607 | return; |
| 608 | } |
| 609 | |
| 610 | for (i = 0; i < schedules->count; i++) { |
| 611 | lttng_rotation_schedule_destroy(schedules->schedules[i]); |
| 612 | } |
| 613 | free(schedules); |
| 614 | } |
| 615 | |
| 616 | |
| 617 | enum lttng_rotation_status lttng_rotation_schedules_get_count( |
| 618 | const struct lttng_rotation_schedules *schedules, |
| 619 | unsigned int *count) |
| 620 | { |
| 621 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 622 | |
| 623 | if (!schedules || !count) { |
| 624 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 625 | goto end; |
| 626 | } |
| 627 | |
| 628 | *count = schedules->count; |
| 629 | end: |
| 630 | return status; |
| 631 | } |
| 632 | |
| 633 | const struct lttng_rotation_schedule *lttng_rotation_schedules_get_at_index( |
| 634 | const struct lttng_rotation_schedules *schedules, |
| 635 | unsigned int index) |
| 636 | { |
| 637 | const struct lttng_rotation_schedule *schedule = NULL; |
| 638 | |
| 639 | if (!schedules || index >= schedules->count) { |
| 640 | goto end; |
| 641 | } |
| 642 | |
| 643 | schedule = schedules->schedules[index]; |
| 644 | end: |
| 645 | return schedule; |
| 646 | } |
| 647 | |
| 648 | enum lttng_rotation_status lttng_session_add_rotation_schedule( |
| 649 | const char *session_name, |
| 650 | const struct lttng_rotation_schedule *schedule) |
| 651 | { |
| 652 | return lttng_rotation_update_schedule(session_name, schedule, true); |
| 653 | } |
| 654 | |
| 655 | enum lttng_rotation_status lttng_session_remove_rotation_schedule( |
| 656 | const char *session_name, |
| 657 | const struct lttng_rotation_schedule *schedule) |
| 658 | { |
| 659 | return lttng_rotation_update_schedule(session_name, schedule, false); |
| 660 | } |
| 661 | |
| 662 | int lttng_session_list_rotation_schedules( |
| 663 | const char *session_name, |
| 664 | struct lttng_rotation_schedules **schedules) |
| 665 | { |
| 666 | return get_schedules(session_name, schedules); |
| 667 | } |