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