| 1 | /* |
| 2 | * query.c |
| 3 | * |
| 4 | * Babeltrace CTF file system Reader Component queries |
| 5 | * |
| 6 | * Copyright 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 7 | * |
| 8 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 9 | * of this software and associated documentation files (the "Software"), to deal |
| 10 | * in the Software without restriction, including without limitation the rights |
| 11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 12 | * copies of the Software, and to permit persons to whom the Software is |
| 13 | * furnished to do so, subject to the following conditions: |
| 14 | * |
| 15 | * The above copyright notice and this permission notice shall be included in |
| 16 | * all copies or substantial portions of the Software. |
| 17 | * |
| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 21 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 23 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 24 | * SOFTWARE. |
| 25 | */ |
| 26 | |
| 27 | #include "query.h" |
| 28 | #include <stdbool.h> |
| 29 | #include <assert.h> |
| 30 | #include "metadata.h" |
| 31 | #include "../common/metadata/decoder.h" |
| 32 | #include <babeltrace/common-internal.h> |
| 33 | #include <babeltrace/babeltrace-internal.h> |
| 34 | #include <babeltrace/ctf-ir/stream.h> |
| 35 | #include "fs.h" |
| 36 | |
| 37 | #define BT_LOG_TAG "PLUGIN-CTF-FS-QUERY-SRC" |
| 38 | #include "logging.h" |
| 39 | |
| 40 | #define METADATA_TEXT_SIG "/* CTF 1.8" |
| 41 | |
| 42 | struct range { |
| 43 | int64_t begin_ns; |
| 44 | int64_t end_ns; |
| 45 | bool set; |
| 46 | }; |
| 47 | |
| 48 | BT_HIDDEN |
| 49 | struct bt_value *metadata_info_query(struct bt_component_class *comp_class, |
| 50 | struct bt_value *params) |
| 51 | { |
| 52 | struct bt_value *result = NULL; |
| 53 | struct bt_value *path_value = NULL; |
| 54 | char *metadata_text = NULL; |
| 55 | FILE *metadata_fp = NULL; |
| 56 | GString *g_metadata_text = NULL; |
| 57 | int ret; |
| 58 | int bo; |
| 59 | const char *path; |
| 60 | bool is_packetized; |
| 61 | |
| 62 | result = bt_value_map_create(); |
| 63 | if (!result) { |
| 64 | goto error; |
| 65 | } |
| 66 | |
| 67 | if (!bt_value_is_map(params)) { |
| 68 | fprintf(stderr, |
| 69 | "Query parameters is not a map value object\n"); |
| 70 | goto error; |
| 71 | } |
| 72 | |
| 73 | path_value = bt_value_map_get(params, "path"); |
| 74 | ret = bt_value_string_get(path_value, &path); |
| 75 | if (ret) { |
| 76 | fprintf(stderr, |
| 77 | "Cannot get `path` string parameter\n"); |
| 78 | goto error; |
| 79 | } |
| 80 | |
| 81 | assert(path); |
| 82 | metadata_fp = ctf_fs_metadata_open_file(path); |
| 83 | if (!metadata_fp) { |
| 84 | fprintf(stderr, |
| 85 | "Cannot open trace at path `%s`\n", path); |
| 86 | goto error; |
| 87 | } |
| 88 | |
| 89 | is_packetized = ctf_metadata_decoder_is_packetized(metadata_fp, |
| 90 | &bo); |
| 91 | |
| 92 | if (is_packetized) { |
| 93 | ret = ctf_metadata_decoder_packetized_file_stream_to_buf( |
| 94 | metadata_fp, &metadata_text, bo); |
| 95 | if (ret) { |
| 96 | fprintf(stderr, |
| 97 | "Cannot decode packetized metadata file\n"); |
| 98 | goto error; |
| 99 | } |
| 100 | } else { |
| 101 | long filesize; |
| 102 | |
| 103 | fseek(metadata_fp, 0, SEEK_END); |
| 104 | filesize = ftell(metadata_fp); |
| 105 | rewind(metadata_fp); |
| 106 | metadata_text = malloc(filesize + 1); |
| 107 | if (!metadata_text) { |
| 108 | fprintf(stderr, |
| 109 | "Cannot allocate buffer for metadata text\n"); |
| 110 | goto error; |
| 111 | } |
| 112 | |
| 113 | if (fread(metadata_text, filesize, 1, metadata_fp) != 1) { |
| 114 | fprintf(stderr, |
| 115 | "Cannot read metadata file\n"); |
| 116 | goto error; |
| 117 | } |
| 118 | |
| 119 | metadata_text[filesize] = '\0'; |
| 120 | } |
| 121 | |
| 122 | g_metadata_text = g_string_new(NULL); |
| 123 | if (!g_metadata_text) { |
| 124 | goto error; |
| 125 | } |
| 126 | |
| 127 | if (strncmp(metadata_text, METADATA_TEXT_SIG, |
| 128 | sizeof(METADATA_TEXT_SIG) - 1) != 0) { |
| 129 | g_string_assign(g_metadata_text, METADATA_TEXT_SIG); |
| 130 | g_string_append(g_metadata_text, " */\n\n"); |
| 131 | } |
| 132 | |
| 133 | g_string_append(g_metadata_text, metadata_text); |
| 134 | |
| 135 | ret = bt_value_map_insert_string(result, "text", |
| 136 | g_metadata_text->str); |
| 137 | if (ret) { |
| 138 | fprintf(stderr, "Cannot insert metadata text into result\n"); |
| 139 | goto error; |
| 140 | } |
| 141 | |
| 142 | ret = bt_value_map_insert_bool(result, "is-packetized", |
| 143 | is_packetized); |
| 144 | if (ret) { |
| 145 | fprintf(stderr, "Cannot insert is packetized into result\n"); |
| 146 | goto error; |
| 147 | } |
| 148 | |
| 149 | goto end; |
| 150 | |
| 151 | error: |
| 152 | BT_PUT(result); |
| 153 | |
| 154 | end: |
| 155 | bt_put(path_value); |
| 156 | free(metadata_text); |
| 157 | |
| 158 | if (g_metadata_text) { |
| 159 | g_string_free(g_metadata_text, TRUE); |
| 160 | } |
| 161 | |
| 162 | if (metadata_fp) { |
| 163 | fclose(metadata_fp); |
| 164 | } |
| 165 | return result; |
| 166 | } |
| 167 | static |
| 168 | int add_range(struct bt_value *info, struct range *range, |
| 169 | const char *range_name) |
| 170 | { |
| 171 | int ret = 0; |
| 172 | enum bt_value_status status; |
| 173 | struct bt_value *range_map = NULL; |
| 174 | |
| 175 | if (!range->set) { |
| 176 | /* Not an error. */ |
| 177 | goto end; |
| 178 | } |
| 179 | |
| 180 | range_map = bt_value_map_create(); |
| 181 | if (!range_map) { |
| 182 | ret = -1; |
| 183 | goto end; |
| 184 | } |
| 185 | |
| 186 | status = bt_value_map_insert_integer(range_map, "begin", |
| 187 | range->begin_ns); |
| 188 | if (status != BT_VALUE_STATUS_OK) { |
| 189 | ret = -1; |
| 190 | goto end; |
| 191 | } |
| 192 | |
| 193 | status = bt_value_map_insert_integer(range_map, "end", |
| 194 | range->end_ns); |
| 195 | if (status != BT_VALUE_STATUS_OK) { |
| 196 | ret = -1; |
| 197 | goto end; |
| 198 | } |
| 199 | |
| 200 | status = bt_value_map_insert(info, range_name, range_map); |
| 201 | if (status != BT_VALUE_STATUS_OK) { |
| 202 | ret = -1; |
| 203 | goto end; |
| 204 | } |
| 205 | end: |
| 206 | bt_put(range_map); |
| 207 | return ret; |
| 208 | } |
| 209 | |
| 210 | static |
| 211 | int add_stream_ids(struct bt_value *info, struct bt_ctf_stream *stream) |
| 212 | { |
| 213 | int ret = 0; |
| 214 | int64_t stream_class_id, stream_instance_id; |
| 215 | enum bt_value_status status; |
| 216 | struct bt_ctf_stream_class *stream_class; |
| 217 | |
| 218 | stream_instance_id = bt_ctf_stream_get_id(stream); |
| 219 | if (stream_instance_id != -1) { |
| 220 | status = bt_value_map_insert_integer(info, "id", |
| 221 | stream_instance_id); |
| 222 | if (status != BT_VALUE_STATUS_OK) { |
| 223 | ret = -1; |
| 224 | goto end; |
| 225 | } |
| 226 | } |
| 227 | |
| 228 | stream_class = bt_ctf_stream_get_class(stream); |
| 229 | if (!stream_class) { |
| 230 | ret = -1; |
| 231 | goto end; |
| 232 | } |
| 233 | |
| 234 | stream_class_id = bt_ctf_stream_class_get_id(stream_class); |
| 235 | if (stream_class_id == -1) { |
| 236 | ret = -1; |
| 237 | goto end; |
| 238 | } |
| 239 | |
| 240 | status = bt_value_map_insert_integer(info, "class-id", stream_class_id); |
| 241 | if (status != BT_VALUE_STATUS_OK) { |
| 242 | ret = -1; |
| 243 | goto end; |
| 244 | } |
| 245 | end: |
| 246 | bt_put(stream_class); |
| 247 | return ret; |
| 248 | } |
| 249 | |
| 250 | static |
| 251 | int populate_stream_info(struct ctf_fs_ds_file_group *group, |
| 252 | struct bt_value *group_info, |
| 253 | struct range *stream_range) |
| 254 | { |
| 255 | int ret = 0; |
| 256 | size_t file_idx; |
| 257 | enum bt_value_status status; |
| 258 | struct bt_value *file_paths; |
| 259 | |
| 260 | stream_range->begin_ns = INT64_MAX; |
| 261 | stream_range->end_ns = 0; |
| 262 | |
| 263 | file_paths = bt_value_array_create(); |
| 264 | if (!file_paths) { |
| 265 | ret = -1; |
| 266 | goto end; |
| 267 | } |
| 268 | |
| 269 | for (file_idx = 0; file_idx < group->ds_file_infos->len; file_idx++) { |
| 270 | int64_t file_begin_epoch, file_end_epoch; |
| 271 | struct ctf_fs_ds_file_info *info = |
| 272 | g_ptr_array_index(group->ds_file_infos, |
| 273 | file_idx); |
| 274 | |
| 275 | if (!info->index || info->index->entries->len == 0) { |
| 276 | BT_LOGW("Cannot determine range of unindexed stream file \'%s\'", |
| 277 | info->path->str); |
| 278 | ret = -1; |
| 279 | goto end; |
| 280 | } |
| 281 | |
| 282 | status = bt_value_array_append_string(file_paths, |
| 283 | info->path->str); |
| 284 | if (status != BT_VALUE_STATUS_OK) { |
| 285 | ret = -1; |
| 286 | goto end; |
| 287 | } |
| 288 | |
| 289 | /* |
| 290 | * file range is from timestamp_begin of the first entry to the |
| 291 | * timestamp_end of the last entry. |
| 292 | */ |
| 293 | file_begin_epoch = ((struct ctf_fs_ds_index_entry *) &g_array_index(info->index->entries, |
| 294 | struct ctf_fs_ds_index_entry, 0))->timestamp_begin_ns; |
| 295 | file_end_epoch = ((struct ctf_fs_ds_index_entry *) &g_array_index(info->index->entries, |
| 296 | struct ctf_fs_ds_index_entry, info->index->entries->len - 1))->timestamp_end_ns; |
| 297 | |
| 298 | stream_range->begin_ns = min(stream_range->begin_ns, file_begin_epoch); |
| 299 | stream_range->end_ns = max(stream_range->end_ns, file_end_epoch); |
| 300 | stream_range->set = true; |
| 301 | } |
| 302 | |
| 303 | if (stream_range->set) { |
| 304 | ret = add_range(group_info, stream_range, "range-ns"); |
| 305 | if (ret) { |
| 306 | goto end; |
| 307 | } |
| 308 | } |
| 309 | |
| 310 | status = bt_value_map_insert(group_info, "paths", file_paths); |
| 311 | if (status != BT_VALUE_STATUS_OK) { |
| 312 | ret = -1; |
| 313 | goto end; |
| 314 | } |
| 315 | |
| 316 | ret = add_stream_ids(group_info, group->stream); |
| 317 | if (ret) { |
| 318 | goto end; |
| 319 | } |
| 320 | end: |
| 321 | bt_put(file_paths); |
| 322 | return ret; |
| 323 | } |
| 324 | |
| 325 | static |
| 326 | int populate_trace_info(const char *trace_path, const char *trace_name, |
| 327 | struct bt_value *trace_info) |
| 328 | { |
| 329 | int ret = 0; |
| 330 | size_t group_idx; |
| 331 | struct ctf_fs_trace *trace = NULL; |
| 332 | enum bt_value_status status; |
| 333 | struct bt_value *file_groups; |
| 334 | struct range trace_range = { |
| 335 | .begin_ns = INT64_MAX, |
| 336 | .end_ns = 0, |
| 337 | .set = false, |
| 338 | }; |
| 339 | struct range trace_intersection = { |
| 340 | .begin_ns = 0, |
| 341 | .end_ns = INT64_MAX, |
| 342 | .set = false, |
| 343 | }; |
| 344 | |
| 345 | file_groups = bt_value_array_create(); |
| 346 | if (!file_groups) { |
| 347 | goto end; |
| 348 | } |
| 349 | |
| 350 | status = bt_value_map_insert_string(trace_info, "name", |
| 351 | trace_name); |
| 352 | if (status != BT_VALUE_STATUS_OK) { |
| 353 | ret = -1; |
| 354 | goto end; |
| 355 | } |
| 356 | status = bt_value_map_insert_string(trace_info, "path", |
| 357 | trace_path); |
| 358 | if (status != BT_VALUE_STATUS_OK) { |
| 359 | ret = -1; |
| 360 | goto end; |
| 361 | } |
| 362 | |
| 363 | trace = ctf_fs_trace_create(trace_path, trace_name, NULL); |
| 364 | if (!trace) { |
| 365 | BT_LOGE("Failed to create fs trace at \'%s\'", trace_path); |
| 366 | ret = -1; |
| 367 | goto end; |
| 368 | } |
| 369 | |
| 370 | assert(trace->ds_file_groups); |
| 371 | /* Add trace range info only if it contains streams. */ |
| 372 | if (trace->ds_file_groups->len == 0) { |
| 373 | ret = -1; |
| 374 | goto end; |
| 375 | } |
| 376 | |
| 377 | /* Find range of all stream groups, and of the trace. */ |
| 378 | for (group_idx = 0; group_idx < trace->ds_file_groups->len; |
| 379 | group_idx++) { |
| 380 | struct bt_value *group_info; |
| 381 | struct range group_range = { .set = false }; |
| 382 | struct ctf_fs_ds_file_group *group = g_ptr_array_index( |
| 383 | trace->ds_file_groups, group_idx); |
| 384 | |
| 385 | group_info = bt_value_map_create(); |
| 386 | if (!group_info) { |
| 387 | ret = -1; |
| 388 | goto end; |
| 389 | } |
| 390 | |
| 391 | ret = populate_stream_info(group, group_info, &group_range); |
| 392 | if (ret) { |
| 393 | bt_put(group_info); |
| 394 | goto end; |
| 395 | } |
| 396 | |
| 397 | if (group_range.set) { |
| 398 | trace_range.begin_ns = min(trace_range.begin_ns, |
| 399 | group_range.begin_ns); |
| 400 | trace_range.end_ns = max(trace_range.end_ns, |
| 401 | group_range.end_ns); |
| 402 | trace_range.set = true; |
| 403 | |
| 404 | trace_intersection.begin_ns = max(trace_intersection.begin_ns, |
| 405 | group_range.begin_ns); |
| 406 | trace_intersection.end_ns = min(trace_intersection.end_ns, |
| 407 | group_range.end_ns); |
| 408 | trace_intersection.set = true; |
| 409 | status = bt_value_array_append(file_groups, group_info); |
| 410 | bt_put(group_info); |
| 411 | if (status != BT_VALUE_STATUS_OK) { |
| 412 | goto end; |
| 413 | } |
| 414 | } |
| 415 | } |
| 416 | |
| 417 | ret = add_range(trace_info, &trace_range, "range-ns"); |
| 418 | if (ret) { |
| 419 | goto end; |
| 420 | } |
| 421 | ret = add_range(trace_info, &trace_intersection, |
| 422 | "intersection-range-ns"); |
| 423 | if (ret) { |
| 424 | goto end; |
| 425 | } |
| 426 | |
| 427 | status = bt_value_map_insert(trace_info, "streams", file_groups); |
| 428 | BT_PUT(file_groups); |
| 429 | if (status != BT_VALUE_STATUS_OK) { |
| 430 | ret = -1; |
| 431 | goto end; |
| 432 | } |
| 433 | |
| 434 | end: |
| 435 | bt_put(file_groups); |
| 436 | ctf_fs_trace_destroy(trace); |
| 437 | return ret; |
| 438 | } |
| 439 | |
| 440 | BT_HIDDEN |
| 441 | struct bt_value *trace_info_query(struct bt_component_class *comp_class, |
| 442 | struct bt_value *params) |
| 443 | { |
| 444 | struct bt_value *trace_infos = NULL; |
| 445 | struct bt_value *path_value = NULL; |
| 446 | int ret = 0; |
| 447 | const char *path = NULL; |
| 448 | GList *trace_paths = NULL; |
| 449 | GList *trace_names = NULL; |
| 450 | GList *tp_node = NULL; |
| 451 | GList *tn_node = NULL; |
| 452 | GString *normalized_path = NULL; |
| 453 | |
| 454 | if (!bt_value_is_map(params)) { |
| 455 | BT_LOGE("Query parameters is not a map value object."); |
| 456 | goto error; |
| 457 | } |
| 458 | |
| 459 | path_value = bt_value_map_get(params, "path"); |
| 460 | ret = bt_value_string_get(path_value, &path); |
| 461 | if (ret) { |
| 462 | BT_LOGE("Cannot get `path` string parameter."); |
| 463 | goto error; |
| 464 | } |
| 465 | |
| 466 | normalized_path = bt_common_normalize_path(path, NULL); |
| 467 | if (!normalized_path) { |
| 468 | BT_LOGE("Failed to normalize path: `%s`.", path); |
| 469 | goto error; |
| 470 | } |
| 471 | assert(path); |
| 472 | |
| 473 | ret = ctf_fs_find_traces(&trace_paths, normalized_path->str); |
| 474 | if (ret) { |
| 475 | goto error; |
| 476 | } |
| 477 | |
| 478 | trace_names = ctf_fs_create_trace_names(trace_paths, |
| 479 | normalized_path->str); |
| 480 | if (!trace_names) { |
| 481 | BT_LOGE("Cannot create trace names from trace paths."); |
| 482 | goto error; |
| 483 | } |
| 484 | |
| 485 | trace_infos = bt_value_array_create(); |
| 486 | if (!trace_infos) { |
| 487 | goto error; |
| 488 | } |
| 489 | |
| 490 | /* Iterates over both trace paths and names simultaneously. */ |
| 491 | for (tp_node = trace_paths, tn_node = trace_names; tp_node; |
| 492 | tp_node = g_list_next(tp_node), |
| 493 | tn_node = g_list_next(tn_node)) { |
| 494 | GString *trace_path = tp_node->data; |
| 495 | GString *trace_name = tn_node->data; |
| 496 | enum bt_value_status status; |
| 497 | struct bt_value *trace_info; |
| 498 | |
| 499 | trace_info = bt_value_map_create(); |
| 500 | if (!trace_info) { |
| 501 | BT_LOGE("Failed to create trace info map."); |
| 502 | goto error; |
| 503 | } |
| 504 | |
| 505 | ret = populate_trace_info(trace_path->str, trace_name->str, |
| 506 | trace_info); |
| 507 | if (ret) { |
| 508 | bt_put(trace_info); |
| 509 | goto error; |
| 510 | } |
| 511 | |
| 512 | status = bt_value_array_append(trace_infos, trace_info); |
| 513 | bt_put(trace_info); |
| 514 | if (status != BT_VALUE_STATUS_OK) { |
| 515 | goto error; |
| 516 | } |
| 517 | } |
| 518 | |
| 519 | goto end; |
| 520 | |
| 521 | error: |
| 522 | BT_PUT(trace_infos); |
| 523 | end: |
| 524 | if (normalized_path) { |
| 525 | g_string_free(normalized_path, TRUE); |
| 526 | } |
| 527 | if (trace_paths) { |
| 528 | for (tp_node = trace_paths; tp_node; tp_node = g_list_next(tp_node)) { |
| 529 | if (tp_node->data) { |
| 530 | g_string_free(tp_node->data, TRUE); |
| 531 | } |
| 532 | } |
| 533 | g_list_free(trace_paths); |
| 534 | } |
| 535 | if (trace_names) { |
| 536 | for (tn_node = trace_names; tn_node; tn_node = g_list_next(tn_node)) { |
| 537 | if (tn_node->data) { |
| 538 | g_string_free(tn_node->data, TRUE); |
| 539 | } |
| 540 | } |
| 541 | g_list_free(trace_names); |
| 542 | } |
| 543 | /* "path" becomes invalid with the release of path_value. */ |
| 544 | bt_put(path_value); |
| 545 | return trace_infos; |
| 546 | } |