| 1 | /* |
| 2 | * Copyright (C) 2017 - Julien Desfossez <jdesfossez@efficios.com> |
| 3 | * |
| 4 | * This library is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU Lesser General Public License, version 2.1 only, |
| 6 | * as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This library is distributed in the hope that it will be useful, but WITHOUT |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License |
| 11 | * for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU Lesser General Public License |
| 14 | * along with this library; if not, write to the Free Software Foundation, |
| 15 | * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 16 | */ |
| 17 | |
| 18 | #define _LGPL_SOURCE |
| 19 | #include <assert.h> |
| 20 | #include <string.h> |
| 21 | |
| 22 | #include <lttng/lttng-error.h> |
| 23 | #include <lttng/rotation.h> |
| 24 | #include <lttng/location-internal.h> |
| 25 | #include <lttng/rotate-internal.h> |
| 26 | #include <common/sessiond-comm/sessiond-comm.h> |
| 27 | #include <common/macros.h> |
| 28 | |
| 29 | #include "lttng-ctl-helper.h" |
| 30 | |
| 31 | static |
| 32 | enum lttng_rotation_status ask_rotation_info( |
| 33 | struct lttng_rotation_handle *rotation_handle, |
| 34 | struct lttng_rotation_get_info_return **info) |
| 35 | { |
| 36 | /* lsm.get_rotation_state.rotation_id */ |
| 37 | struct lttcomm_session_msg lsm; |
| 38 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 39 | int ret; |
| 40 | |
| 41 | if (!rotation_handle || !info) { |
| 42 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 43 | goto end; |
| 44 | } |
| 45 | |
| 46 | memset(&lsm, 0, sizeof(lsm)); |
| 47 | lsm.cmd_type = LTTNG_ROTATION_GET_INFO; |
| 48 | lsm.u.get_rotation_info.rotation_id = rotation_handle->rotation_id; |
| 49 | |
| 50 | ret = lttng_strncpy(lsm.session.name, rotation_handle->session_name, |
| 51 | sizeof(lsm.session.name)); |
| 52 | if (ret) { |
| 53 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 54 | goto end; |
| 55 | } |
| 56 | |
| 57 | ret = lttng_ctl_ask_sessiond(&lsm, (void **) info); |
| 58 | if (ret < 0) { |
| 59 | status = LTTNG_ROTATION_STATUS_ERROR; |
| 60 | goto end; |
| 61 | } |
| 62 | end: |
| 63 | return status; |
| 64 | |
| 65 | } |
| 66 | |
| 67 | static |
| 68 | struct lttng_trace_archive_location * |
| 69 | create_trace_archive_location_from_get_info( |
| 70 | const struct lttng_rotation_get_info_return *info) |
| 71 | { |
| 72 | struct lttng_trace_archive_location *location; |
| 73 | |
| 74 | switch (info->location_type) { |
| 75 | case LTTNG_TRACE_ARCHIVE_LOCATION_TYPE_LOCAL: |
| 76 | location = lttng_trace_archive_location_local_create( |
| 77 | info->location.local.absolute_path); |
| 78 | break; |
| 79 | case LTTNG_TRACE_ARCHIVE_LOCATION_TYPE_RELAY: |
| 80 | location = lttng_trace_archive_location_relay_create( |
| 81 | info->location.relay.host, |
| 82 | info->location.relay.protocol, |
| 83 | info->location.relay.ports.control, |
| 84 | info->location.relay.ports.data, |
| 85 | info->location.relay.relative_path); |
| 86 | break; |
| 87 | default: |
| 88 | location = NULL; |
| 89 | break; |
| 90 | } |
| 91 | return location; |
| 92 | } |
| 93 | |
| 94 | enum lttng_rotation_status lttng_rotation_handle_get_state( |
| 95 | struct lttng_rotation_handle *rotation_handle, |
| 96 | enum lttng_rotation_state *state) |
| 97 | { |
| 98 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 99 | struct lttng_rotation_get_info_return *info = NULL; |
| 100 | |
| 101 | if (!rotation_handle || !state) { |
| 102 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 103 | goto end; |
| 104 | } |
| 105 | |
| 106 | status = ask_rotation_info(rotation_handle, &info); |
| 107 | if (status != LTTNG_ROTATION_STATUS_OK) { |
| 108 | goto end; |
| 109 | } |
| 110 | |
| 111 | *state = (enum lttng_rotation_state) info->status; |
| 112 | if (rotation_handle->archive_location || |
| 113 | *state != LTTNG_ROTATION_STATE_COMPLETED) { |
| 114 | /* |
| 115 | * The path is only provided by the sessiond once |
| 116 | * the session rotation is completed, but not expired. |
| 117 | */ |
| 118 | goto end; |
| 119 | } |
| 120 | |
| 121 | /* |
| 122 | * Cache the location since the rotation may expire before the user |
| 123 | * has a chance to query it. |
| 124 | */ |
| 125 | rotation_handle->archive_location = |
| 126 | create_trace_archive_location_from_get_info(info); |
| 127 | if (!rotation_handle->archive_location) { |
| 128 | status = LTTNG_ROTATION_STATUS_ERROR; |
| 129 | goto end; |
| 130 | } |
| 131 | end: |
| 132 | free(info); |
| 133 | return status; |
| 134 | } |
| 135 | |
| 136 | enum lttng_rotation_status lttng_rotation_handle_get_archive_location( |
| 137 | struct lttng_rotation_handle *rotation_handle, |
| 138 | const struct lttng_trace_archive_location **location) |
| 139 | { |
| 140 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 141 | struct lttng_rotation_get_info_return *info = NULL; |
| 142 | |
| 143 | if (!rotation_handle || !location) { |
| 144 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 145 | goto end; |
| 146 | } |
| 147 | |
| 148 | /* Use the cached location we got from a previous query. */ |
| 149 | if (rotation_handle->archive_location) { |
| 150 | *location = rotation_handle->archive_location; |
| 151 | goto end; |
| 152 | } |
| 153 | |
| 154 | status = ask_rotation_info(rotation_handle, &info); |
| 155 | if (status != LTTNG_ROTATION_STATUS_OK) { |
| 156 | goto end; |
| 157 | } |
| 158 | |
| 159 | if ((enum lttng_rotation_state) info->status != |
| 160 | LTTNG_ROTATION_STATE_COMPLETED) { |
| 161 | status = LTTNG_ROTATION_STATUS_UNAVAILABLE; |
| 162 | goto end; |
| 163 | } |
| 164 | |
| 165 | rotation_handle->archive_location = |
| 166 | create_trace_archive_location_from_get_info(info); |
| 167 | if (!rotation_handle->archive_location) { |
| 168 | status = LTTNG_ROTATION_STATUS_ERROR; |
| 169 | goto end; |
| 170 | } |
| 171 | end: |
| 172 | free(info); |
| 173 | return status; |
| 174 | } |
| 175 | |
| 176 | void lttng_rotation_handle_destroy( |
| 177 | struct lttng_rotation_handle *rotation_handle) |
| 178 | { |
| 179 | if (!rotation_handle) { |
| 180 | return; |
| 181 | } |
| 182 | lttng_trace_archive_location_destroy(rotation_handle->archive_location); |
| 183 | free(rotation_handle); |
| 184 | } |
| 185 | |
| 186 | static |
| 187 | int init_rotation_handle(struct lttng_rotation_handle *rotation_handle, |
| 188 | const char *session_name, |
| 189 | struct lttng_rotate_session_return *rotate_return) |
| 190 | { |
| 191 | int ret; |
| 192 | |
| 193 | ret = lttng_strncpy(rotation_handle->session_name, session_name, |
| 194 | sizeof(rotation_handle->session_name)); |
| 195 | if (ret) { |
| 196 | goto end; |
| 197 | } |
| 198 | |
| 199 | rotation_handle->rotation_id = rotate_return->rotation_id; |
| 200 | end: |
| 201 | return ret; |
| 202 | } |
| 203 | |
| 204 | /* |
| 205 | * Rotate the output folder of the session. |
| 206 | * |
| 207 | * Return 0 on success else a negative LTTng error code. |
| 208 | */ |
| 209 | int lttng_rotate_session(const char *session_name, |
| 210 | struct lttng_rotation_immediate_descriptor *descriptor, |
| 211 | struct lttng_rotation_handle **rotation_handle) |
| 212 | { |
| 213 | struct lttcomm_session_msg lsm; |
| 214 | struct lttng_rotate_session_return *rotate_return = NULL; |
| 215 | int ret; |
| 216 | size_t session_name_len; |
| 217 | |
| 218 | if (!session_name) { |
| 219 | ret = -LTTNG_ERR_INVALID; |
| 220 | goto end; |
| 221 | } |
| 222 | |
| 223 | session_name_len = strlen(session_name); |
| 224 | if (session_name_len >= sizeof(lsm.session.name) || |
| 225 | session_name_len >= member_sizeof(struct lttng_rotation_handle, session_name)) { |
| 226 | ret = -LTTNG_ERR_INVALID; |
| 227 | goto end; |
| 228 | } |
| 229 | |
| 230 | memset(&lsm, 0, sizeof(lsm)); |
| 231 | lsm.cmd_type = LTTNG_ROTATE_SESSION; |
| 232 | lttng_ctl_copy_string(lsm.session.name, session_name, |
| 233 | sizeof(lsm.session.name)); |
| 234 | |
| 235 | ret = lttng_ctl_ask_sessiond(&lsm, (void **) &rotate_return); |
| 236 | if (ret <= 0) { |
| 237 | *rotation_handle = NULL; |
| 238 | goto end; |
| 239 | } |
| 240 | |
| 241 | *rotation_handle = zmalloc(sizeof(struct lttng_rotation_handle)); |
| 242 | if (!*rotation_handle) { |
| 243 | ret = -LTTNG_ERR_NOMEM; |
| 244 | goto end; |
| 245 | } |
| 246 | |
| 247 | init_rotation_handle(*rotation_handle, session_name, rotate_return); |
| 248 | |
| 249 | ret = 0; |
| 250 | |
| 251 | end: |
| 252 | free(rotate_return); |
| 253 | return ret; |
| 254 | } |
| 255 | |
| 256 | /* |
| 257 | * Update the automatic rotation parameters. |
| 258 | * 'add' as true enables the provided schedule, false removes the shedule. |
| 259 | * |
| 260 | * The external API makes it appear as though arbitrary schedules can |
| 261 | * be added or removed at will. However, the session daemon is |
| 262 | * currently limited to one schedule per type (per session). |
| 263 | * |
| 264 | * The additional flexibility of the public API is offered for future |
| 265 | * rotation schedules that could indicate more precise criteria than |
| 266 | * size and time (e.g. a domain) where it could make sense to add |
| 267 | * multiple schedules of a given type to a session. |
| 268 | * |
| 269 | * Hence, the exact schedule that the user wishes to remove (and not |
| 270 | * just its type) must be passed so that the session daemon can |
| 271 | * validate that is exists before clearing it. |
| 272 | */ |
| 273 | static |
| 274 | enum lttng_rotation_status lttng_rotation_update_schedule( |
| 275 | const char *session_name, |
| 276 | const struct lttng_rotation_schedule *schedule, |
| 277 | bool add) |
| 278 | { |
| 279 | struct lttcomm_session_msg lsm; |
| 280 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 281 | int ret; |
| 282 | |
| 283 | if (!session_name || !schedule) { |
| 284 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 285 | goto end; |
| 286 | } |
| 287 | |
| 288 | if (strlen(session_name) >= sizeof(lsm.session.name)) { |
| 289 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 290 | goto end; |
| 291 | } |
| 292 | |
| 293 | memset(&lsm, 0, sizeof(lsm)); |
| 294 | lsm.cmd_type = LTTNG_ROTATION_SET_SCHEDULE; |
| 295 | lttng_ctl_copy_string(lsm.session.name, session_name, |
| 296 | sizeof(lsm.session.name)); |
| 297 | |
| 298 | lsm.u.rotation_set_schedule.type = (uint32_t) schedule->type; |
| 299 | switch (schedule->type) { |
| 300 | case LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD: |
| 301 | { |
| 302 | status = lttng_rotation_schedule_size_threshold_get_threshold( |
| 303 | schedule, &lsm.u.rotation_set_schedule.value); |
| 304 | if (status != LTTNG_ROTATION_STATUS_OK) { |
| 305 | if (status == LTTNG_ROTATION_STATUS_UNAVAILABLE) { |
| 306 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 307 | } |
| 308 | goto end; |
| 309 | } |
| 310 | |
| 311 | lsm.u.rotation_set_schedule.set = !!add; |
| 312 | break; |
| 313 | } |
| 314 | case LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC: |
| 315 | { |
| 316 | status = lttng_rotation_schedule_periodic_get_period( |
| 317 | schedule, &lsm.u.rotation_set_schedule.value); |
| 318 | if (status != LTTNG_ROTATION_STATUS_OK) { |
| 319 | if (status == LTTNG_ROTATION_STATUS_UNAVAILABLE) { |
| 320 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 321 | } |
| 322 | goto end; |
| 323 | } |
| 324 | |
| 325 | lsm.u.rotation_set_schedule.set = !!add; |
| 326 | break; |
| 327 | } |
| 328 | default: |
| 329 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 330 | goto end; |
| 331 | } |
| 332 | |
| 333 | ret = lttng_ctl_ask_sessiond(&lsm, NULL); |
| 334 | if (ret >= 0) { |
| 335 | goto end; |
| 336 | } |
| 337 | |
| 338 | switch (-ret) { |
| 339 | case LTTNG_ERR_ROTATION_SCHEDULE_SET: |
| 340 | status = LTTNG_ROTATION_STATUS_SCHEDULE_ALREADY_SET; |
| 341 | break; |
| 342 | case LTTNG_ERR_ROTATION_SCHEDULE_NOT_SET: |
| 343 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 344 | break; |
| 345 | default: |
| 346 | status = LTTNG_ROTATION_STATUS_ERROR; |
| 347 | } |
| 348 | end: |
| 349 | return status; |
| 350 | } |
| 351 | |
| 352 | static |
| 353 | struct lttng_rotation_schedules *lttng_rotation_schedules_create(void) |
| 354 | { |
| 355 | return zmalloc(sizeof(struct lttng_rotation_schedules)); |
| 356 | } |
| 357 | |
| 358 | static |
| 359 | void lttng_schedules_add(struct lttng_rotation_schedules *schedules, |
| 360 | struct lttng_rotation_schedule *schedule) |
| 361 | { |
| 362 | schedules->schedules[schedules->count++] = schedule; |
| 363 | } |
| 364 | |
| 365 | static |
| 366 | int get_schedules(const char *session_name, |
| 367 | struct lttng_rotation_schedules **_schedules) |
| 368 | { |
| 369 | int ret; |
| 370 | struct lttcomm_session_msg lsm; |
| 371 | struct lttng_session_list_schedules_return *schedules_comm; |
| 372 | struct lttng_rotation_schedules *schedules = NULL; |
| 373 | struct lttng_rotation_schedule *periodic = NULL, *size = NULL; |
| 374 | |
| 375 | memset(&lsm, 0, sizeof(lsm)); |
| 376 | lsm.cmd_type = LTTNG_SESSION_LIST_ROTATION_SCHEDULES; |
| 377 | lttng_ctl_copy_string(lsm.session.name, session_name, |
| 378 | sizeof(lsm.session.name)); |
| 379 | |
| 380 | ret = lttng_ctl_ask_sessiond(&lsm, (void **) &schedules_comm); |
| 381 | if (ret < 0) { |
| 382 | goto end; |
| 383 | } |
| 384 | |
| 385 | schedules = lttng_rotation_schedules_create(); |
| 386 | if (!schedules) { |
| 387 | ret = -LTTNG_ERR_NOMEM; |
| 388 | goto end; |
| 389 | } |
| 390 | |
| 391 | if (schedules_comm->periodic.set == 1) { |
| 392 | enum lttng_rotation_status status; |
| 393 | |
| 394 | periodic = lttng_rotation_schedule_periodic_create(); |
| 395 | if (!periodic) { |
| 396 | ret = -LTTNG_ERR_NOMEM; |
| 397 | goto end; |
| 398 | } |
| 399 | |
| 400 | status = lttng_rotation_schedule_periodic_set_period( |
| 401 | periodic, schedules_comm->periodic.value); |
| 402 | if (status != LTTNG_ROTATION_STATUS_OK) { |
| 403 | /* |
| 404 | * This would imply that the session daemon returned |
| 405 | * an invalid periodic rotation schedule value. |
| 406 | */ |
| 407 | ret = -LTTNG_ERR_UNK; |
| 408 | goto end; |
| 409 | } |
| 410 | |
| 411 | lttng_schedules_add(schedules, periodic); |
| 412 | periodic = NULL; |
| 413 | } |
| 414 | |
| 415 | if (schedules_comm->size.set == 1) { |
| 416 | enum lttng_rotation_status status; |
| 417 | |
| 418 | size = lttng_rotation_schedule_size_threshold_create(); |
| 419 | if (!size) { |
| 420 | ret = -LTTNG_ERR_NOMEM; |
| 421 | goto end; |
| 422 | } |
| 423 | |
| 424 | status = lttng_rotation_schedule_size_threshold_set_threshold( |
| 425 | size, schedules_comm->size.value); |
| 426 | if (status != LTTNG_ROTATION_STATUS_OK) { |
| 427 | /* |
| 428 | * This would imply that the session daemon returned |
| 429 | * an invalid size threshold schedule value. |
| 430 | */ |
| 431 | ret = -LTTNG_ERR_UNK; |
| 432 | goto end; |
| 433 | } |
| 434 | |
| 435 | lttng_schedules_add(schedules, size); |
| 436 | size = NULL; |
| 437 | } |
| 438 | |
| 439 | ret = LTTNG_OK; |
| 440 | end: |
| 441 | free(schedules_comm); |
| 442 | free(periodic); |
| 443 | free(size); |
| 444 | *_schedules = schedules; |
| 445 | return ret; |
| 446 | } |
| 447 | |
| 448 | enum lttng_rotation_schedule_type lttng_rotation_schedule_get_type( |
| 449 | const struct lttng_rotation_schedule *schedule) |
| 450 | { |
| 451 | return schedule ? schedule->type : LTTNG_ROTATION_SCHEDULE_TYPE_UNKNOWN; |
| 452 | } |
| 453 | |
| 454 | struct lttng_rotation_schedule * |
| 455 | lttng_rotation_schedule_size_threshold_create(void) |
| 456 | { |
| 457 | struct lttng_rotation_schedule_size_threshold *schedule; |
| 458 | |
| 459 | schedule = zmalloc(sizeof(*schedule)); |
| 460 | if (!schedule) { |
| 461 | goto end; |
| 462 | } |
| 463 | |
| 464 | schedule->parent.type = LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD; |
| 465 | end: |
| 466 | return &schedule->parent; |
| 467 | } |
| 468 | |
| 469 | enum lttng_rotation_status |
| 470 | lttng_rotation_schedule_size_threshold_get_threshold( |
| 471 | const struct lttng_rotation_schedule *schedule, |
| 472 | uint64_t *size_threshold_bytes) |
| 473 | { |
| 474 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 475 | struct lttng_rotation_schedule_size_threshold *size_schedule; |
| 476 | |
| 477 | if (!schedule || !size_threshold_bytes || |
| 478 | schedule->type != LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD) { |
| 479 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 480 | goto end; |
| 481 | } |
| 482 | |
| 483 | size_schedule = container_of(schedule, |
| 484 | struct lttng_rotation_schedule_size_threshold, |
| 485 | parent); |
| 486 | if (size_schedule->size.set) { |
| 487 | *size_threshold_bytes = size_schedule->size.bytes; |
| 488 | } else { |
| 489 | status = LTTNG_ROTATION_STATUS_UNAVAILABLE; |
| 490 | goto end; |
| 491 | } |
| 492 | end: |
| 493 | return status; |
| 494 | } |
| 495 | |
| 496 | enum lttng_rotation_status |
| 497 | lttng_rotation_schedule_size_threshold_set_threshold( |
| 498 | struct lttng_rotation_schedule *schedule, |
| 499 | uint64_t size_threshold_bytes) |
| 500 | { |
| 501 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 502 | struct lttng_rotation_schedule_size_threshold *size_schedule; |
| 503 | |
| 504 | if (!schedule || size_threshold_bytes == 0 || |
| 505 | size_threshold_bytes == -1ULL || |
| 506 | schedule->type != LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD) { |
| 507 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 508 | goto end; |
| 509 | } |
| 510 | |
| 511 | size_schedule = container_of(schedule, |
| 512 | struct lttng_rotation_schedule_size_threshold, |
| 513 | parent); |
| 514 | size_schedule->size.bytes = size_threshold_bytes; |
| 515 | size_schedule->size.set = true; |
| 516 | end: |
| 517 | return status; |
| 518 | } |
| 519 | |
| 520 | struct lttng_rotation_schedule * |
| 521 | lttng_rotation_schedule_periodic_create(void) |
| 522 | { |
| 523 | struct lttng_rotation_schedule_periodic *schedule; |
| 524 | |
| 525 | schedule = zmalloc(sizeof(*schedule)); |
| 526 | if (!schedule) { |
| 527 | goto end; |
| 528 | } |
| 529 | |
| 530 | schedule->parent.type = LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC; |
| 531 | end: |
| 532 | return &schedule->parent; |
| 533 | } |
| 534 | |
| 535 | enum lttng_rotation_status |
| 536 | lttng_rotation_schedule_periodic_get_period( |
| 537 | const struct lttng_rotation_schedule *schedule, |
| 538 | uint64_t *period_us) |
| 539 | { |
| 540 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 541 | struct lttng_rotation_schedule_periodic *periodic_schedule; |
| 542 | |
| 543 | if (!schedule || !period_us || |
| 544 | schedule->type != LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC) { |
| 545 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 546 | goto end; |
| 547 | } |
| 548 | |
| 549 | periodic_schedule = container_of(schedule, |
| 550 | struct lttng_rotation_schedule_periodic, |
| 551 | parent); |
| 552 | if (periodic_schedule->period.set) { |
| 553 | *period_us = periodic_schedule->period.us; |
| 554 | } else { |
| 555 | status = LTTNG_ROTATION_STATUS_UNAVAILABLE; |
| 556 | goto end; |
| 557 | } |
| 558 | end: |
| 559 | return status; |
| 560 | } |
| 561 | |
| 562 | enum lttng_rotation_status |
| 563 | lttng_rotation_schedule_periodic_set_period( |
| 564 | struct lttng_rotation_schedule *schedule, |
| 565 | uint64_t period_us) |
| 566 | { |
| 567 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 568 | struct lttng_rotation_schedule_periodic *periodic_schedule; |
| 569 | |
| 570 | if (!schedule || period_us == 0 || period_us == -1ULL || |
| 571 | schedule->type != LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC) { |
| 572 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 573 | goto end; |
| 574 | } |
| 575 | |
| 576 | periodic_schedule = container_of(schedule, |
| 577 | struct lttng_rotation_schedule_periodic, |
| 578 | parent); |
| 579 | periodic_schedule->period.us = period_us; |
| 580 | periodic_schedule->period.set = true; |
| 581 | end: |
| 582 | return status; |
| 583 | } |
| 584 | |
| 585 | void lttng_rotation_schedule_destroy(struct lttng_rotation_schedule *schedule) |
| 586 | { |
| 587 | if (!schedule) { |
| 588 | return; |
| 589 | } |
| 590 | free(schedule); |
| 591 | } |
| 592 | |
| 593 | void lttng_rotation_schedules_destroy( |
| 594 | struct lttng_rotation_schedules *schedules) |
| 595 | { |
| 596 | unsigned int i; |
| 597 | |
| 598 | if (!schedules) { |
| 599 | return; |
| 600 | } |
| 601 | |
| 602 | for (i = 0; i < schedules->count; i++) { |
| 603 | lttng_rotation_schedule_destroy(schedules->schedules[i]); |
| 604 | } |
| 605 | free(schedules); |
| 606 | } |
| 607 | |
| 608 | |
| 609 | enum lttng_rotation_status lttng_rotation_schedules_get_count( |
| 610 | const struct lttng_rotation_schedules *schedules, |
| 611 | unsigned int *count) |
| 612 | { |
| 613 | enum lttng_rotation_status status = LTTNG_ROTATION_STATUS_OK; |
| 614 | |
| 615 | if (!schedules || !count) { |
| 616 | status = LTTNG_ROTATION_STATUS_INVALID; |
| 617 | goto end; |
| 618 | } |
| 619 | |
| 620 | *count = schedules->count; |
| 621 | end: |
| 622 | return status; |
| 623 | } |
| 624 | |
| 625 | const struct lttng_rotation_schedule *lttng_rotation_schedules_get_at_index( |
| 626 | const struct lttng_rotation_schedules *schedules, |
| 627 | unsigned int index) |
| 628 | { |
| 629 | const struct lttng_rotation_schedule *schedule = NULL; |
| 630 | |
| 631 | if (!schedules || index >= schedules->count) { |
| 632 | goto end; |
| 633 | } |
| 634 | |
| 635 | schedule = schedules->schedules[index]; |
| 636 | end: |
| 637 | return schedule; |
| 638 | } |
| 639 | |
| 640 | enum lttng_rotation_status lttng_session_add_rotation_schedule( |
| 641 | const char *session_name, |
| 642 | const struct lttng_rotation_schedule *schedule) |
| 643 | { |
| 644 | return lttng_rotation_update_schedule(session_name, schedule, true); |
| 645 | } |
| 646 | |
| 647 | enum lttng_rotation_status lttng_session_remove_rotation_schedule( |
| 648 | const char *session_name, |
| 649 | const struct lttng_rotation_schedule *schedule) |
| 650 | { |
| 651 | return lttng_rotation_update_schedule(session_name, schedule, false); |
| 652 | } |
| 653 | |
| 654 | int lttng_session_list_rotation_schedules( |
| 655 | const char *session_name, |
| 656 | struct lttng_rotation_schedules **schedules) |
| 657 | { |
| 658 | return get_schedules(session_name, schedules); |
| 659 | } |