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