| 1 | /* |
| 2 | * fs.c |
| 3 | * |
| 4 | * Babeltrace CTF file system Reader Component |
| 5 | * |
| 6 | * Copyright 2015-2017 Philippe Proulx <pproulx@efficios.com> |
| 7 | * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 8 | * |
| 9 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 10 | * of this software and associated documentation files (the "Software"), to deal |
| 11 | * in the Software without restriction, including without limitation the rights |
| 12 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 13 | * copies of the Software, and to permit persons to whom the Software is |
| 14 | * furnished to do so, subject to the following conditions: |
| 15 | * |
| 16 | * The above copyright notice and this permission notice shall be included in |
| 17 | * all copies or substantial portions of the Software. |
| 18 | * |
| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 20 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 22 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 23 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 24 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 25 | * SOFTWARE. |
| 26 | */ |
| 27 | |
| 28 | #include <babeltrace/ctf-ir/packet.h> |
| 29 | #include <babeltrace/ctf-ir/clock-class.h> |
| 30 | #include <babeltrace/ctf-ir/stream.h> |
| 31 | #include <babeltrace/ctf-ir/fields.h> |
| 32 | #include <babeltrace/graph/private-port.h> |
| 33 | #include <babeltrace/graph/private-component.h> |
| 34 | #include <babeltrace/graph/private-component-source.h> |
| 35 | #include <babeltrace/graph/private-notification-iterator.h> |
| 36 | #include <babeltrace/graph/component.h> |
| 37 | #include <babeltrace/graph/notification-iterator.h> |
| 38 | #include <babeltrace/graph/clock-class-priority-map.h> |
| 39 | #include <plugins-common.h> |
| 40 | #include <glib.h> |
| 41 | #include <assert.h> |
| 42 | #include <inttypes.h> |
| 43 | #include <stdbool.h> |
| 44 | #include <unistd.h> |
| 45 | #include "fs.h" |
| 46 | #include "metadata.h" |
| 47 | #include "data-stream-file.h" |
| 48 | #include "file.h" |
| 49 | #include "../common/metadata/decoder.h" |
| 50 | |
| 51 | #define PRINT_ERR_STREAM ctf_fs->error_fp |
| 52 | #define PRINT_PREFIX "ctf-fs" |
| 53 | #define PRINT_DBG_CHECK ctf_fs_debug |
| 54 | #include "../print.h" |
| 55 | #define METADATA_TEXT_SIG "/* CTF 1.8" |
| 56 | |
| 57 | BT_HIDDEN |
| 58 | bool ctf_fs_debug; |
| 59 | |
| 60 | static |
| 61 | int notif_iter_data_set_current_ds_file(struct ctf_fs_notif_iter_data *notif_iter_data) |
| 62 | { |
| 63 | struct ctf_fs_ds_file_info *ds_file_info; |
| 64 | int ret = 0; |
| 65 | |
| 66 | assert(notif_iter_data->ds_file_info_index < |
| 67 | notif_iter_data->ds_file_group->ds_file_infos->len); |
| 68 | ds_file_info = g_ptr_array_index( |
| 69 | notif_iter_data->ds_file_group->ds_file_infos, |
| 70 | notif_iter_data->ds_file_info_index); |
| 71 | |
| 72 | ctf_fs_ds_file_destroy(notif_iter_data->ds_file); |
| 73 | notif_iter_data->ds_file = ctf_fs_ds_file_create( |
| 74 | notif_iter_data->ds_file_group->ctf_fs_trace, |
| 75 | notif_iter_data->ds_file_group->stream, |
| 76 | ds_file_info->path->str, true); |
| 77 | if (!notif_iter_data->ds_file) { |
| 78 | ret = -1; |
| 79 | } |
| 80 | |
| 81 | return ret; |
| 82 | } |
| 83 | |
| 84 | static |
| 85 | void ctf_fs_notif_iter_data_destroy( |
| 86 | struct ctf_fs_notif_iter_data *notif_iter_data) |
| 87 | { |
| 88 | if (!notif_iter_data) { |
| 89 | return; |
| 90 | } |
| 91 | |
| 92 | ctf_fs_ds_file_destroy(notif_iter_data->ds_file); |
| 93 | g_free(notif_iter_data); |
| 94 | } |
| 95 | |
| 96 | struct bt_notification_iterator_next_return ctf_fs_iterator_next( |
| 97 | struct bt_private_notification_iterator *iterator) |
| 98 | { |
| 99 | struct bt_notification_iterator_next_return next_ret; |
| 100 | struct ctf_fs_notif_iter_data *notif_iter_data = |
| 101 | bt_private_notification_iterator_get_user_data(iterator); |
| 102 | int ret; |
| 103 | |
| 104 | assert(notif_iter_data->ds_file); |
| 105 | next_ret = ctf_fs_ds_file_next(notif_iter_data->ds_file); |
| 106 | if (next_ret.status == BT_NOTIFICATION_ITERATOR_STATUS_END) { |
| 107 | assert(!next_ret.notification); |
| 108 | notif_iter_data->ds_file_info_index++; |
| 109 | |
| 110 | if (notif_iter_data->ds_file_info_index == |
| 111 | notif_iter_data->ds_file_group->ds_file_infos->len) { |
| 112 | /* |
| 113 | * No more stream files to read: we reached the |
| 114 | * real end. |
| 115 | */ |
| 116 | goto end; |
| 117 | } |
| 118 | |
| 119 | /* |
| 120 | * Open and start reading the next stream file within |
| 121 | * our stream file group. |
| 122 | */ |
| 123 | ret = notif_iter_data_set_current_ds_file(notif_iter_data); |
| 124 | if (ret) { |
| 125 | next_ret.status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; |
| 126 | goto end; |
| 127 | } |
| 128 | |
| 129 | next_ret = ctf_fs_ds_file_next(notif_iter_data->ds_file); |
| 130 | |
| 131 | /* |
| 132 | * We should not get BT_NOTIFICATION_ITERATOR_STATUS_END |
| 133 | * with a brand new stream file because empty stream |
| 134 | * files are not even part of stream file groups, which |
| 135 | * means we're sure to get at least one pair of "packet |
| 136 | * begin" and "packet end" notifications in the case of |
| 137 | * a single, empty packet. |
| 138 | */ |
| 139 | assert(next_ret.status != BT_NOTIFICATION_ITERATOR_STATUS_END); |
| 140 | } |
| 141 | |
| 142 | end: |
| 143 | return next_ret; |
| 144 | } |
| 145 | |
| 146 | void ctf_fs_iterator_finalize(struct bt_private_notification_iterator *it) |
| 147 | { |
| 148 | void *notif_iter_data = |
| 149 | bt_private_notification_iterator_get_user_data(it); |
| 150 | |
| 151 | ctf_fs_notif_iter_data_destroy(notif_iter_data); |
| 152 | } |
| 153 | |
| 154 | enum bt_notification_iterator_status ctf_fs_iterator_init( |
| 155 | struct bt_private_notification_iterator *it, |
| 156 | struct bt_private_port *port) |
| 157 | { |
| 158 | struct ctf_fs_port_data *port_data; |
| 159 | struct ctf_fs_notif_iter_data *notif_iter_data = NULL; |
| 160 | enum bt_notification_iterator_status ret = |
| 161 | BT_NOTIFICATION_ITERATOR_STATUS_OK; |
| 162 | int iret; |
| 163 | |
| 164 | port_data = bt_private_port_get_user_data(port); |
| 165 | if (!port_data) { |
| 166 | ret = BT_NOTIFICATION_ITERATOR_STATUS_INVALID; |
| 167 | goto error; |
| 168 | } |
| 169 | |
| 170 | notif_iter_data = g_new0(struct ctf_fs_notif_iter_data, 1); |
| 171 | if (!notif_iter_data) { |
| 172 | ret = BT_NOTIFICATION_ITERATOR_STATUS_NOMEM; |
| 173 | goto error; |
| 174 | } |
| 175 | |
| 176 | notif_iter_data->ds_file_group = port_data->ds_file_group; |
| 177 | iret = notif_iter_data_set_current_ds_file(notif_iter_data); |
| 178 | if (iret) { |
| 179 | ret = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; |
| 180 | goto error; |
| 181 | } |
| 182 | |
| 183 | ret = bt_private_notification_iterator_set_user_data(it, notif_iter_data); |
| 184 | if (ret) { |
| 185 | goto error; |
| 186 | } |
| 187 | |
| 188 | notif_iter_data = NULL; |
| 189 | goto end; |
| 190 | |
| 191 | error: |
| 192 | (void) bt_private_notification_iterator_set_user_data(it, NULL); |
| 193 | |
| 194 | if (ret == BT_NOTIFICATION_ITERATOR_STATUS_OK) { |
| 195 | ret = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; |
| 196 | } |
| 197 | |
| 198 | end: |
| 199 | ctf_fs_notif_iter_data_destroy(notif_iter_data); |
| 200 | return ret; |
| 201 | } |
| 202 | |
| 203 | static |
| 204 | void ctf_fs_destroy(struct ctf_fs_component *ctf_fs) |
| 205 | { |
| 206 | if (!ctf_fs) { |
| 207 | return; |
| 208 | } |
| 209 | |
| 210 | if (ctf_fs->traces) { |
| 211 | g_ptr_array_free(ctf_fs->traces, TRUE); |
| 212 | } |
| 213 | |
| 214 | if (ctf_fs->port_data) { |
| 215 | g_ptr_array_free(ctf_fs->port_data, TRUE); |
| 216 | } |
| 217 | |
| 218 | g_free(ctf_fs); |
| 219 | } |
| 220 | |
| 221 | static |
| 222 | void ctf_fs_trace_destroy(void *data) |
| 223 | { |
| 224 | struct ctf_fs_trace *ctf_fs_trace = data; |
| 225 | |
| 226 | if (!ctf_fs_trace) { |
| 227 | return; |
| 228 | } |
| 229 | |
| 230 | if (ctf_fs_trace->ds_file_groups) { |
| 231 | g_ptr_array_free(ctf_fs_trace->ds_file_groups, TRUE); |
| 232 | } |
| 233 | |
| 234 | if (ctf_fs_trace->path) { |
| 235 | g_string_free(ctf_fs_trace->path, TRUE); |
| 236 | } |
| 237 | |
| 238 | if (ctf_fs_trace->name) { |
| 239 | g_string_free(ctf_fs_trace->name, TRUE); |
| 240 | } |
| 241 | |
| 242 | if (ctf_fs_trace->metadata) { |
| 243 | ctf_fs_metadata_fini(ctf_fs_trace->metadata); |
| 244 | g_free(ctf_fs_trace->metadata); |
| 245 | } |
| 246 | |
| 247 | bt_put(ctf_fs_trace->cc_prio_map); |
| 248 | g_free(ctf_fs_trace); |
| 249 | } |
| 250 | |
| 251 | void ctf_fs_finalize(struct bt_private_component *component) |
| 252 | { |
| 253 | void *data = bt_private_component_get_user_data(component); |
| 254 | |
| 255 | ctf_fs_destroy(data); |
| 256 | } |
| 257 | |
| 258 | static |
| 259 | void port_data_destroy(void *data) { |
| 260 | struct ctf_fs_port_data *port_data = data; |
| 261 | |
| 262 | if (!port_data) { |
| 263 | return; |
| 264 | } |
| 265 | |
| 266 | g_free(port_data); |
| 267 | } |
| 268 | |
| 269 | static |
| 270 | int create_one_port_for_trace(struct ctf_fs_trace *ctf_fs_trace, |
| 271 | struct ctf_fs_ds_file_group *ds_file_group) |
| 272 | { |
| 273 | int ret = 0; |
| 274 | struct bt_private_port *port = NULL; |
| 275 | struct ctf_fs_port_data *port_data = NULL; |
| 276 | GString *port_name = NULL; |
| 277 | struct ctf_fs_component *ctf_fs = ctf_fs_trace->ctf_fs; |
| 278 | struct ctf_fs_ds_file_info *ds_file_info = |
| 279 | g_ptr_array_index(ds_file_group->ds_file_infos, 0); |
| 280 | |
| 281 | port_name = g_string_new(NULL); |
| 282 | if (!port_name) { |
| 283 | goto error; |
| 284 | } |
| 285 | |
| 286 | /* |
| 287 | * Assign the name for the new output port. If there's more than |
| 288 | * one stream file in the stream file group, the first |
| 289 | * (earliest) stream file's path is used. |
| 290 | */ |
| 291 | assert(ds_file_group->ds_file_infos->len > 0); |
| 292 | ds_file_info = g_ptr_array_index(ds_file_group->ds_file_infos, 0); |
| 293 | g_string_assign(port_name, ds_file_info->path->str); |
| 294 | PDBG("Creating one port named `%s`\n", port_name->str); |
| 295 | |
| 296 | /* Create output port for this file */ |
| 297 | port_data = g_new0(struct ctf_fs_port_data, 1); |
| 298 | if (!port_data) { |
| 299 | goto error; |
| 300 | } |
| 301 | |
| 302 | port_data->ds_file_group = ds_file_group; |
| 303 | port = bt_private_component_source_add_output_private_port( |
| 304 | ctf_fs->priv_comp, port_name->str, port_data); |
| 305 | if (!port) { |
| 306 | goto error; |
| 307 | } |
| 308 | |
| 309 | g_ptr_array_add(ctf_fs->port_data, port_data); |
| 310 | port_data = NULL; |
| 311 | goto end; |
| 312 | |
| 313 | error: |
| 314 | ret = -1; |
| 315 | |
| 316 | end: |
| 317 | if (port_name) { |
| 318 | g_string_free(port_name, TRUE); |
| 319 | } |
| 320 | |
| 321 | bt_put(port); |
| 322 | port_data_destroy(port_data); |
| 323 | return ret; |
| 324 | } |
| 325 | |
| 326 | static |
| 327 | int create_ports_for_trace(struct ctf_fs_trace *ctf_fs_trace) |
| 328 | { |
| 329 | int ret = 0; |
| 330 | struct ctf_fs_component *ctf_fs = ctf_fs_trace->ctf_fs; |
| 331 | size_t i; |
| 332 | |
| 333 | /* Create one output port for each stream file group */ |
| 334 | for (i = 0; i < ctf_fs_trace->ds_file_groups->len; i++) { |
| 335 | struct ctf_fs_ds_file_group *ds_file_group = |
| 336 | g_ptr_array_index(ctf_fs_trace->ds_file_groups, i); |
| 337 | |
| 338 | ret = create_one_port_for_trace(ctf_fs_trace, ds_file_group); |
| 339 | if (ret) { |
| 340 | PERR("Cannot create output port.\n"); |
| 341 | goto end; |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | end: |
| 346 | return ret; |
| 347 | } |
| 348 | |
| 349 | uint64_t get_packet_header_stream_instance_id(struct ctf_fs_trace *ctf_fs_trace, |
| 350 | struct bt_ctf_field *packet_header_field) |
| 351 | { |
| 352 | struct bt_ctf_field *stream_instance_id_field = NULL; |
| 353 | uint64_t stream_instance_id = -1ULL; |
| 354 | int ret; |
| 355 | |
| 356 | if (!packet_header_field) { |
| 357 | goto end; |
| 358 | } |
| 359 | |
| 360 | stream_instance_id_field = bt_ctf_field_structure_get_field_by_name( |
| 361 | packet_header_field, "stream_instance_id"); |
| 362 | if (!stream_instance_id_field) { |
| 363 | goto end; |
| 364 | } |
| 365 | |
| 366 | ret = bt_ctf_field_unsigned_integer_get_value(stream_instance_id_field, |
| 367 | &stream_instance_id); |
| 368 | if (ret) { |
| 369 | stream_instance_id = -1ULL; |
| 370 | goto end; |
| 371 | } |
| 372 | |
| 373 | end: |
| 374 | bt_put(stream_instance_id_field); |
| 375 | return stream_instance_id; |
| 376 | } |
| 377 | |
| 378 | struct bt_ctf_stream_class *stream_class_from_packet_header( |
| 379 | struct ctf_fs_trace *ctf_fs_trace, |
| 380 | struct bt_ctf_field *packet_header_field) |
| 381 | { |
| 382 | struct bt_ctf_field *stream_id_field = NULL; |
| 383 | struct bt_ctf_stream_class *stream_class = NULL; |
| 384 | uint64_t stream_id = -1ULL; |
| 385 | int ret; |
| 386 | |
| 387 | if (!packet_header_field) { |
| 388 | goto single_stream_class; |
| 389 | } |
| 390 | |
| 391 | stream_id_field = bt_ctf_field_structure_get_field_by_name( |
| 392 | packet_header_field, "stream_id"); |
| 393 | if (!stream_id_field) { |
| 394 | goto end; |
| 395 | } |
| 396 | |
| 397 | ret = bt_ctf_field_unsigned_integer_get_value(stream_id_field, |
| 398 | &stream_id); |
| 399 | if (ret) { |
| 400 | stream_id = -1ULL; |
| 401 | } |
| 402 | |
| 403 | if (stream_id == -1ULL) { |
| 404 | single_stream_class: |
| 405 | /* Single stream class */ |
| 406 | if (bt_ctf_trace_get_stream_class_count( |
| 407 | ctf_fs_trace->metadata->trace) == 0) { |
| 408 | goto end; |
| 409 | } |
| 410 | |
| 411 | stream_class = bt_ctf_trace_get_stream_class_by_index( |
| 412 | ctf_fs_trace->metadata->trace, 0); |
| 413 | } else { |
| 414 | stream_class = bt_ctf_trace_get_stream_class_by_id( |
| 415 | ctf_fs_trace->metadata->trace, stream_id); |
| 416 | } |
| 417 | |
| 418 | end: |
| 419 | bt_put(stream_id_field); |
| 420 | return stream_class; |
| 421 | } |
| 422 | |
| 423 | uint64_t get_packet_context_timestamp_begin_ns( |
| 424 | struct ctf_fs_trace *ctf_fs_trace, |
| 425 | struct bt_ctf_field *packet_context_field) |
| 426 | { |
| 427 | int ret; |
| 428 | struct bt_ctf_field *timestamp_begin_field = NULL; |
| 429 | struct bt_ctf_field_type *timestamp_begin_ft = NULL; |
| 430 | uint64_t timestamp_begin_raw_value = -1ULL; |
| 431 | uint64_t timestamp_begin_ns = -1ULL; |
| 432 | int64_t timestamp_begin_ns_signed; |
| 433 | struct bt_ctf_clock_class *timestamp_begin_clock_class = NULL; |
| 434 | struct bt_ctf_clock_value *clock_value = NULL; |
| 435 | |
| 436 | if (!packet_context_field) { |
| 437 | goto end; |
| 438 | } |
| 439 | |
| 440 | timestamp_begin_field = bt_ctf_field_structure_get_field_by_name( |
| 441 | packet_context_field, "timestamp_begin"); |
| 442 | if (!timestamp_begin_field) { |
| 443 | goto end; |
| 444 | } |
| 445 | |
| 446 | timestamp_begin_ft = bt_ctf_field_get_type(timestamp_begin_field); |
| 447 | assert(timestamp_begin_ft); |
| 448 | timestamp_begin_clock_class = |
| 449 | bt_ctf_field_type_integer_get_mapped_clock_class(timestamp_begin_ft); |
| 450 | if (!timestamp_begin_clock_class) { |
| 451 | goto end; |
| 452 | } |
| 453 | |
| 454 | ret = bt_ctf_field_unsigned_integer_get_value(timestamp_begin_field, |
| 455 | ×tamp_begin_raw_value); |
| 456 | if (ret) { |
| 457 | goto end; |
| 458 | } |
| 459 | |
| 460 | clock_value = bt_ctf_clock_value_create(timestamp_begin_clock_class, |
| 461 | timestamp_begin_raw_value); |
| 462 | if (!clock_value) { |
| 463 | goto end; |
| 464 | } |
| 465 | |
| 466 | ret = bt_ctf_clock_value_get_value_ns_from_epoch(clock_value, |
| 467 | ×tamp_begin_ns_signed); |
| 468 | if (ret) { |
| 469 | goto end; |
| 470 | } |
| 471 | |
| 472 | timestamp_begin_ns = (uint64_t) timestamp_begin_ns_signed; |
| 473 | |
| 474 | end: |
| 475 | bt_put(timestamp_begin_field); |
| 476 | bt_put(timestamp_begin_ft); |
| 477 | bt_put(timestamp_begin_clock_class); |
| 478 | bt_put(clock_value); |
| 479 | return timestamp_begin_ns; |
| 480 | } |
| 481 | |
| 482 | static |
| 483 | void ctf_fs_ds_file_info_destroy(struct ctf_fs_ds_file_info *ds_file_info) |
| 484 | { |
| 485 | if (!ds_file_info) { |
| 486 | return; |
| 487 | } |
| 488 | |
| 489 | if (ds_file_info->path) { |
| 490 | g_string_free(ds_file_info->path, TRUE); |
| 491 | } |
| 492 | |
| 493 | g_free(ds_file_info); |
| 494 | } |
| 495 | |
| 496 | static |
| 497 | struct ctf_fs_ds_file_info *ctf_fs_ds_file_info_create(const char *path, |
| 498 | uint64_t begin_ns) |
| 499 | { |
| 500 | struct ctf_fs_ds_file_info *ds_file_info; |
| 501 | |
| 502 | ds_file_info = g_new0(struct ctf_fs_ds_file_info, 1); |
| 503 | if (!ds_file_info) { |
| 504 | goto end; |
| 505 | } |
| 506 | |
| 507 | ds_file_info->path = g_string_new(path); |
| 508 | if (!ds_file_info->path) { |
| 509 | ctf_fs_ds_file_info_destroy(ds_file_info); |
| 510 | ds_file_info = NULL; |
| 511 | goto end; |
| 512 | } |
| 513 | |
| 514 | ds_file_info->begin_ns = begin_ns; |
| 515 | |
| 516 | end: |
| 517 | return ds_file_info; |
| 518 | } |
| 519 | |
| 520 | static |
| 521 | void ctf_fs_ds_file_group_destroy(struct ctf_fs_ds_file_group *ds_file_group) |
| 522 | { |
| 523 | if (!ds_file_group) { |
| 524 | return; |
| 525 | } |
| 526 | |
| 527 | if (ds_file_group->ds_file_infos) { |
| 528 | g_ptr_array_free(ds_file_group->ds_file_infos, TRUE); |
| 529 | } |
| 530 | |
| 531 | bt_put(ds_file_group->stream); |
| 532 | g_free(ds_file_group); |
| 533 | } |
| 534 | |
| 535 | static |
| 536 | struct ctf_fs_ds_file_group *ctf_fs_ds_file_group_create( |
| 537 | struct ctf_fs_trace *ctf_fs_trace, |
| 538 | struct bt_ctf_stream_class *stream_class, |
| 539 | uint64_t stream_instance_id) |
| 540 | { |
| 541 | struct ctf_fs_ds_file_group *ds_file_group; |
| 542 | |
| 543 | assert(stream_class); |
| 544 | ds_file_group = g_new0(struct ctf_fs_ds_file_group, 1); |
| 545 | if (!ds_file_group) { |
| 546 | goto error; |
| 547 | } |
| 548 | |
| 549 | ds_file_group->ds_file_infos = g_ptr_array_new_with_free_func( |
| 550 | (GDestroyNotify) ctf_fs_ds_file_info_destroy); |
| 551 | if (!ds_file_group->ds_file_infos) { |
| 552 | goto error; |
| 553 | } |
| 554 | |
| 555 | if (stream_instance_id == -1ULL) { |
| 556 | ds_file_group->stream = bt_ctf_stream_create( |
| 557 | stream_class, NULL); |
| 558 | } else { |
| 559 | ds_file_group->stream = bt_ctf_stream_create_with_id( |
| 560 | stream_class, NULL, stream_instance_id); |
| 561 | } |
| 562 | |
| 563 | if (!ds_file_group->stream) { |
| 564 | goto error; |
| 565 | } |
| 566 | |
| 567 | ds_file_group->ctf_fs_trace = ctf_fs_trace; |
| 568 | |
| 569 | goto end; |
| 570 | |
| 571 | error: |
| 572 | ctf_fs_ds_file_group_destroy(ds_file_group); |
| 573 | ds_file_group = NULL; |
| 574 | |
| 575 | end: |
| 576 | return ds_file_group; |
| 577 | } |
| 578 | |
| 579 | static |
| 580 | int ctf_fs_ds_file_group_add_ds_file_info( |
| 581 | struct ctf_fs_ds_file_group *ds_file_group, |
| 582 | const char *path, uint64_t begin_ns) |
| 583 | { |
| 584 | struct ctf_fs_ds_file_info *ds_file_info; |
| 585 | gint i = 0; |
| 586 | int ret = 0; |
| 587 | |
| 588 | ds_file_info = ctf_fs_ds_file_info_create(path, begin_ns); |
| 589 | if (!ds_file_info) { |
| 590 | goto error; |
| 591 | } |
| 592 | |
| 593 | /* Find a spot to insert this one */ |
| 594 | for (i = 0; i < ds_file_group->ds_file_infos->len; i++) { |
| 595 | struct ctf_fs_ds_file_info *other_ds_file_info = |
| 596 | g_ptr_array_index(ds_file_group->ds_file_infos, i); |
| 597 | |
| 598 | if (begin_ns < other_ds_file_info->begin_ns) { |
| 599 | break; |
| 600 | } |
| 601 | } |
| 602 | |
| 603 | if (i == ds_file_group->ds_file_infos->len) { |
| 604 | /* Append instead */ |
| 605 | i = -1; |
| 606 | } |
| 607 | |
| 608 | g_ptr_array_insert(ds_file_group->ds_file_infos, i, ds_file_info); |
| 609 | ds_file_info = NULL; |
| 610 | goto end; |
| 611 | |
| 612 | error: |
| 613 | ctf_fs_ds_file_info_destroy(ds_file_info); |
| 614 | ret = -1; |
| 615 | |
| 616 | end: |
| 617 | return ret; |
| 618 | } |
| 619 | |
| 620 | static |
| 621 | int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace, |
| 622 | const char *path) |
| 623 | { |
| 624 | struct bt_ctf_field *packet_header_field = NULL; |
| 625 | struct bt_ctf_field *packet_context_field = NULL; |
| 626 | struct bt_ctf_stream_class *stream_class = NULL; |
| 627 | struct ctf_fs_component *ctf_fs = ctf_fs_trace->ctf_fs; |
| 628 | uint64_t stream_instance_id = -1ULL; |
| 629 | uint64_t begin_ns = -1ULL; |
| 630 | struct ctf_fs_ds_file_group *ds_file_group = NULL; |
| 631 | bool add_group = false; |
| 632 | int ret; |
| 633 | size_t i; |
| 634 | |
| 635 | ret = ctf_fs_ds_file_get_packet_header_context_fields( |
| 636 | ctf_fs_trace, path, &packet_header_field, |
| 637 | &packet_context_field); |
| 638 | if (ret) { |
| 639 | PERR("Cannot get stream file's first packet's header and context fields (`%s`).\n", |
| 640 | path); |
| 641 | goto error; |
| 642 | } |
| 643 | |
| 644 | stream_instance_id = get_packet_header_stream_instance_id(ctf_fs_trace, |
| 645 | packet_header_field); |
| 646 | begin_ns = get_packet_context_timestamp_begin_ns(ctf_fs_trace, |
| 647 | packet_context_field); |
| 648 | stream_class = stream_class_from_packet_header(ctf_fs_trace, |
| 649 | packet_header_field); |
| 650 | if (!stream_class) { |
| 651 | goto error; |
| 652 | } |
| 653 | |
| 654 | if (begin_ns == -1ULL) { |
| 655 | /* |
| 656 | * No beggining timestamp to sort the stream files |
| 657 | * within a stream file group, so consider that this |
| 658 | * file must be the only one within its group. |
| 659 | */ |
| 660 | stream_instance_id = -1ULL; |
| 661 | } |
| 662 | |
| 663 | if (stream_instance_id == -1ULL) { |
| 664 | /* |
| 665 | * No stream instance ID or no beginning timestamp: |
| 666 | * create a unique stream file group for this stream |
| 667 | * file because, even if there's a stream instance ID, |
| 668 | * there's no timestamp to order the file within its |
| 669 | * group. |
| 670 | */ |
| 671 | |
| 672 | ds_file_group = ctf_fs_ds_file_group_create(ctf_fs_trace, |
| 673 | stream_class, stream_instance_id); |
| 674 | if (!ds_file_group) { |
| 675 | goto error; |
| 676 | } |
| 677 | |
| 678 | ret = ctf_fs_ds_file_group_add_ds_file_info(ds_file_group, |
| 679 | path, begin_ns); |
| 680 | if (ret) { |
| 681 | goto error; |
| 682 | } |
| 683 | |
| 684 | add_group = true; |
| 685 | goto end; |
| 686 | } |
| 687 | |
| 688 | assert(stream_instance_id != -1ULL); |
| 689 | assert(begin_ns != -1ULL); |
| 690 | |
| 691 | /* Find an existing stream file group with this ID */ |
| 692 | for (i = 0; i < ctf_fs_trace->ds_file_groups->len; i++) { |
| 693 | int64_t id; |
| 694 | struct bt_ctf_stream_class *cand_stream_class; |
| 695 | |
| 696 | ds_file_group = g_ptr_array_index( |
| 697 | ctf_fs_trace->ds_file_groups, i); |
| 698 | id = bt_ctf_stream_get_id(ds_file_group->stream); |
| 699 | cand_stream_class = bt_ctf_stream_get_class( |
| 700 | ds_file_group->stream); |
| 701 | |
| 702 | assert(cand_stream_class); |
| 703 | bt_put(cand_stream_class); |
| 704 | |
| 705 | if (cand_stream_class == stream_class && |
| 706 | (uint64_t) id == stream_instance_id) { |
| 707 | break; |
| 708 | } |
| 709 | |
| 710 | ds_file_group = NULL; |
| 711 | } |
| 712 | |
| 713 | if (!ds_file_group) { |
| 714 | ds_file_group = ctf_fs_ds_file_group_create(ctf_fs_trace, |
| 715 | stream_class, stream_instance_id); |
| 716 | if (!ds_file_group) { |
| 717 | goto error; |
| 718 | } |
| 719 | |
| 720 | add_group = true; |
| 721 | } |
| 722 | |
| 723 | ret = ctf_fs_ds_file_group_add_ds_file_info(ds_file_group, |
| 724 | path, begin_ns); |
| 725 | if (ret) { |
| 726 | goto error; |
| 727 | } |
| 728 | |
| 729 | goto end; |
| 730 | |
| 731 | error: |
| 732 | ctf_fs_ds_file_group_destroy(ds_file_group); |
| 733 | ret = -1; |
| 734 | |
| 735 | end: |
| 736 | if (add_group && ds_file_group) { |
| 737 | g_ptr_array_add(ctf_fs_trace->ds_file_groups, ds_file_group); |
| 738 | } |
| 739 | |
| 740 | bt_put(packet_header_field); |
| 741 | bt_put(packet_context_field); |
| 742 | bt_put(stream_class); |
| 743 | return ret; |
| 744 | } |
| 745 | |
| 746 | static |
| 747 | int create_ds_file_groups(struct ctf_fs_trace *ctf_fs_trace) |
| 748 | { |
| 749 | int ret = 0; |
| 750 | const char *basename; |
| 751 | GError *error = NULL; |
| 752 | GDir *dir = NULL; |
| 753 | struct ctf_fs_component *ctf_fs = ctf_fs_trace->ctf_fs; |
| 754 | |
| 755 | /* Check each file in the path directory, except specific ones */ |
| 756 | dir = g_dir_open(ctf_fs_trace->path->str, 0, &error); |
| 757 | if (!dir) { |
| 758 | PERR("Cannot open directory `%s`: %s (code %d)\n", |
| 759 | ctf_fs_trace->path->str, error->message, |
| 760 | error->code); |
| 761 | goto error; |
| 762 | } |
| 763 | |
| 764 | while ((basename = g_dir_read_name(dir))) { |
| 765 | struct ctf_fs_file *file; |
| 766 | |
| 767 | if (!strcmp(basename, CTF_FS_METADATA_FILENAME)) { |
| 768 | /* Ignore the metadata stream. */ |
| 769 | PDBG("Ignoring metadata file `%s/%s`\n", |
| 770 | ctf_fs_trace->path->str, basename); |
| 771 | continue; |
| 772 | } |
| 773 | |
| 774 | if (basename[0] == '.') { |
| 775 | PDBG("Ignoring hidden file `%s/%s`\n", |
| 776 | ctf_fs_trace->path->str, basename); |
| 777 | continue; |
| 778 | } |
| 779 | |
| 780 | /* Create the file. */ |
| 781 | file = ctf_fs_file_create(ctf_fs); |
| 782 | if (!file) { |
| 783 | PERR("Cannot create stream file object for file `%s/%s`\n", |
| 784 | ctf_fs_trace->path->str, basename); |
| 785 | goto error; |
| 786 | } |
| 787 | |
| 788 | /* Create full path string. */ |
| 789 | g_string_append_printf(file->path, "%s/%s", |
| 790 | ctf_fs_trace->path->str, basename); |
| 791 | if (!g_file_test(file->path->str, G_FILE_TEST_IS_REGULAR)) { |
| 792 | PDBG("Ignoring non-regular file `%s`\n", |
| 793 | file->path->str); |
| 794 | ctf_fs_file_destroy(file); |
| 795 | file = NULL; |
| 796 | continue; |
| 797 | } |
| 798 | |
| 799 | ret = ctf_fs_file_open(ctf_fs, file, "rb"); |
| 800 | if (ret) { |
| 801 | PERR("Cannot open stream file `%s`\n", file->path->str); |
| 802 | goto error; |
| 803 | } |
| 804 | |
| 805 | if (file->size == 0) { |
| 806 | /* Skip empty stream. */ |
| 807 | PDBG("Ignoring empty file `%s`\n", file->path->str); |
| 808 | ctf_fs_file_destroy(file); |
| 809 | continue; |
| 810 | } |
| 811 | |
| 812 | ret = add_ds_file_to_ds_file_group(ctf_fs_trace, |
| 813 | file->path->str); |
| 814 | if (ret) { |
| 815 | PDBG("Cannot add stream file `%s` to stream file group\n", |
| 816 | file->path->str); |
| 817 | ctf_fs_file_destroy(file); |
| 818 | goto error; |
| 819 | } |
| 820 | |
| 821 | ctf_fs_file_destroy(file); |
| 822 | } |
| 823 | |
| 824 | goto end; |
| 825 | |
| 826 | error: |
| 827 | ret = -1; |
| 828 | |
| 829 | end: |
| 830 | if (dir) { |
| 831 | g_dir_close(dir); |
| 832 | dir = NULL; |
| 833 | } |
| 834 | |
| 835 | if (error) { |
| 836 | g_error_free(error); |
| 837 | } |
| 838 | |
| 839 | return ret; |
| 840 | } |
| 841 | |
| 842 | static |
| 843 | int create_cc_prio_map(struct ctf_fs_trace *ctf_fs_trace) |
| 844 | { |
| 845 | int ret = 0; |
| 846 | size_t i; |
| 847 | int count; |
| 848 | |
| 849 | assert(ctf_fs_trace); |
| 850 | ctf_fs_trace->cc_prio_map = bt_clock_class_priority_map_create(); |
| 851 | if (!ctf_fs_trace->cc_prio_map) { |
| 852 | ret = -1; |
| 853 | goto end; |
| 854 | } |
| 855 | |
| 856 | count = bt_ctf_trace_get_clock_class_count( |
| 857 | ctf_fs_trace->metadata->trace); |
| 858 | assert(count >= 0); |
| 859 | |
| 860 | for (i = 0; i < count; i++) { |
| 861 | struct bt_ctf_clock_class *clock_class = |
| 862 | bt_ctf_trace_get_clock_class_by_index( |
| 863 | ctf_fs_trace->metadata->trace, i); |
| 864 | |
| 865 | assert(clock_class); |
| 866 | ret = bt_clock_class_priority_map_add_clock_class( |
| 867 | ctf_fs_trace->cc_prio_map, clock_class, 0); |
| 868 | BT_PUT(clock_class); |
| 869 | |
| 870 | if (ret) { |
| 871 | goto end; |
| 872 | } |
| 873 | } |
| 874 | |
| 875 | end: |
| 876 | return ret; |
| 877 | } |
| 878 | |
| 879 | static |
| 880 | struct ctf_fs_trace *ctf_fs_trace_create(struct ctf_fs_component *ctf_fs, |
| 881 | const char *path, const char *name) |
| 882 | { |
| 883 | struct ctf_fs_trace *ctf_fs_trace; |
| 884 | int ret; |
| 885 | |
| 886 | ctf_fs_trace = g_new0(struct ctf_fs_trace, 1); |
| 887 | if (!ctf_fs_trace) { |
| 888 | goto end; |
| 889 | } |
| 890 | |
| 891 | ctf_fs_trace->ctf_fs = ctf_fs; |
| 892 | ctf_fs_trace->path = g_string_new(path); |
| 893 | if (!ctf_fs_trace->path) { |
| 894 | goto error; |
| 895 | } |
| 896 | |
| 897 | ctf_fs_trace->name = g_string_new(name); |
| 898 | if (!ctf_fs_trace->name) { |
| 899 | goto error; |
| 900 | } |
| 901 | |
| 902 | ctf_fs_trace->metadata = g_new0(struct ctf_fs_metadata, 1); |
| 903 | if (!ctf_fs_trace->metadata) { |
| 904 | goto error; |
| 905 | } |
| 906 | |
| 907 | ctf_fs_trace->ds_file_groups = g_ptr_array_new_with_free_func( |
| 908 | (GDestroyNotify) ctf_fs_ds_file_group_destroy); |
| 909 | if (!ctf_fs_trace->ds_file_groups) { |
| 910 | goto error; |
| 911 | } |
| 912 | |
| 913 | ret = ctf_fs_metadata_set_trace(ctf_fs_trace); |
| 914 | if (ret) { |
| 915 | goto error; |
| 916 | } |
| 917 | |
| 918 | ret = create_ds_file_groups(ctf_fs_trace); |
| 919 | if (ret) { |
| 920 | goto error; |
| 921 | } |
| 922 | |
| 923 | ret = create_cc_prio_map(ctf_fs_trace); |
| 924 | if (ret) { |
| 925 | goto error; |
| 926 | } |
| 927 | |
| 928 | ret = create_ports_for_trace(ctf_fs_trace); |
| 929 | if (ret) { |
| 930 | goto error; |
| 931 | } |
| 932 | |
| 933 | /* |
| 934 | * create_ds_file_groups() created all the streams that this |
| 935 | * trace needs. There won't be any more. Therefore it is safe to |
| 936 | * make this trace static. |
| 937 | */ |
| 938 | (void) bt_ctf_trace_set_is_static(ctf_fs_trace->metadata->trace); |
| 939 | |
| 940 | goto end; |
| 941 | |
| 942 | error: |
| 943 | ctf_fs_trace_destroy(ctf_fs_trace); |
| 944 | ctf_fs_trace = NULL; |
| 945 | end: |
| 946 | return ctf_fs_trace; |
| 947 | } |
| 948 | |
| 949 | static |
| 950 | int path_is_ctf_trace(const char *path) |
| 951 | { |
| 952 | GString *metadata_path = g_string_new(NULL); |
| 953 | int ret = 0; |
| 954 | |
| 955 | if (!metadata_path) { |
| 956 | ret = -1; |
| 957 | goto end; |
| 958 | } |
| 959 | |
| 960 | g_string_printf(metadata_path, "%s/%s", path, CTF_FS_METADATA_FILENAME); |
| 961 | |
| 962 | if (g_file_test(metadata_path->str, G_FILE_TEST_IS_REGULAR)) { |
| 963 | ret = 1; |
| 964 | goto end; |
| 965 | } |
| 966 | |
| 967 | end: |
| 968 | g_string_free(metadata_path, TRUE); |
| 969 | return ret; |
| 970 | } |
| 971 | |
| 972 | static |
| 973 | int add_trace_path(struct ctf_fs_component *ctf_fs, GList **trace_paths, |
| 974 | const char *path) |
| 975 | { |
| 976 | GString *path_str = g_string_new(NULL); |
| 977 | int ret = 0; |
| 978 | char *rp = NULL; |
| 979 | |
| 980 | if (!path_str) { |
| 981 | ret = -1; |
| 982 | goto end; |
| 983 | } |
| 984 | |
| 985 | /* |
| 986 | * Find the real path so that we don't have relative components |
| 987 | * in the trace name. This also squashes consecutive slashes and |
| 988 | * removes any slash at the end. |
| 989 | */ |
| 990 | rp = realpath(path, NULL); |
| 991 | if (!rp) { |
| 992 | PERR("realpath() failed: %s (%d)\n", strerror(errno), errno); |
| 993 | ret = -1; |
| 994 | goto end; |
| 995 | } |
| 996 | |
| 997 | if (strcmp(rp, "/") == 0) { |
| 998 | PERR("Opening a trace in `/` is not supported.\n"); |
| 999 | ret = -1; |
| 1000 | goto end; |
| 1001 | } |
| 1002 | |
| 1003 | g_string_assign(path_str, rp); |
| 1004 | *trace_paths = g_list_prepend(*trace_paths, path_str); |
| 1005 | assert(*trace_paths); |
| 1006 | |
| 1007 | end: |
| 1008 | free(rp); |
| 1009 | return ret; |
| 1010 | } |
| 1011 | |
| 1012 | static |
| 1013 | int find_ctf_traces(struct ctf_fs_component *ctf_fs, |
| 1014 | GList **trace_paths, const char *start_path) |
| 1015 | { |
| 1016 | int ret; |
| 1017 | GError *error = NULL; |
| 1018 | GDir *dir = NULL; |
| 1019 | const char *basename = NULL; |
| 1020 | |
| 1021 | /* Check if the starting path is a CTF trace itself */ |
| 1022 | ret = path_is_ctf_trace(start_path); |
| 1023 | if (ret < 0) { |
| 1024 | goto end; |
| 1025 | } |
| 1026 | |
| 1027 | if (ret) { |
| 1028 | /* |
| 1029 | * Do not even recurse: a CTF trace cannot contain |
| 1030 | * another CTF trace. |
| 1031 | */ |
| 1032 | ret = add_trace_path(ctf_fs, trace_paths, start_path); |
| 1033 | goto end; |
| 1034 | } |
| 1035 | |
| 1036 | /* Look for subdirectories */ |
| 1037 | if (!g_file_test(start_path, G_FILE_TEST_IS_DIR)) { |
| 1038 | /* Starting path is not a directory: end of recursion */ |
| 1039 | goto end; |
| 1040 | } |
| 1041 | |
| 1042 | dir = g_dir_open(start_path, 0, &error); |
| 1043 | if (!dir) { |
| 1044 | if (error->code == G_FILE_ERROR_ACCES) { |
| 1045 | PDBG("Cannot open directory `%s`: %s (code %d): continuing\n", |
| 1046 | start_path, error->message, error->code); |
| 1047 | goto end; |
| 1048 | } |
| 1049 | |
| 1050 | PERR("Cannot open directory `%s`: %s (code %d)\n", |
| 1051 | start_path, error->message, error->code); |
| 1052 | ret = -1; |
| 1053 | goto end; |
| 1054 | } |
| 1055 | |
| 1056 | while ((basename = g_dir_read_name(dir))) { |
| 1057 | GString *sub_path = g_string_new(NULL); |
| 1058 | |
| 1059 | if (!sub_path) { |
| 1060 | ret = -1; |
| 1061 | goto end; |
| 1062 | } |
| 1063 | |
| 1064 | g_string_printf(sub_path, "%s/%s", start_path, basename); |
| 1065 | ret = find_ctf_traces(ctf_fs, trace_paths, sub_path->str); |
| 1066 | g_string_free(sub_path, TRUE); |
| 1067 | if (ret) { |
| 1068 | goto end; |
| 1069 | } |
| 1070 | } |
| 1071 | |
| 1072 | end: |
| 1073 | if (dir) { |
| 1074 | g_dir_close(dir); |
| 1075 | } |
| 1076 | |
| 1077 | if (error) { |
| 1078 | g_error_free(error); |
| 1079 | } |
| 1080 | |
| 1081 | return ret; |
| 1082 | } |
| 1083 | |
| 1084 | static |
| 1085 | GList *create_trace_names(GList *trace_paths) { |
| 1086 | GList *trace_names = NULL; |
| 1087 | size_t chars_to_strip = 0; |
| 1088 | size_t at = 0; |
| 1089 | GList *node; |
| 1090 | bool done = false; |
| 1091 | |
| 1092 | /* |
| 1093 | * Find the number of characters to strip from the beginning, |
| 1094 | * that is, the longest prefix until a common slash (also |
| 1095 | * stripped). |
| 1096 | */ |
| 1097 | while (true) { |
| 1098 | gchar common_ch = '\0'; |
| 1099 | |
| 1100 | for (node = trace_paths; node; node = g_list_next(node)) { |
| 1101 | GString *gstr = node->data; |
| 1102 | gchar this_ch = gstr->str[at]; |
| 1103 | |
| 1104 | if (this_ch == '\0') { |
| 1105 | done = true; |
| 1106 | break; |
| 1107 | } |
| 1108 | |
| 1109 | if (common_ch == '\0') { |
| 1110 | /* |
| 1111 | * Establish the expected common |
| 1112 | * character at this position. |
| 1113 | */ |
| 1114 | common_ch = this_ch; |
| 1115 | continue; |
| 1116 | } |
| 1117 | |
| 1118 | if (this_ch != common_ch) { |
| 1119 | done = true; |
| 1120 | break; |
| 1121 | } |
| 1122 | } |
| 1123 | |
| 1124 | if (done) { |
| 1125 | break; |
| 1126 | } |
| 1127 | |
| 1128 | if (common_ch == '/') { |
| 1129 | /* |
| 1130 | * Common character is a slash: safe to include |
| 1131 | * this slash in the number of characters to |
| 1132 | * strip because the paths are guaranteed not to |
| 1133 | * end with slash. |
| 1134 | */ |
| 1135 | chars_to_strip = at + 1; |
| 1136 | } |
| 1137 | |
| 1138 | at++; |
| 1139 | } |
| 1140 | |
| 1141 | /* Create the trace names */ |
| 1142 | for (node = trace_paths; node; node = g_list_next(node)) { |
| 1143 | GString *trace_name = g_string_new(NULL); |
| 1144 | GString *trace_path = node->data; |
| 1145 | |
| 1146 | g_string_assign(trace_name, &trace_path->str[chars_to_strip]); |
| 1147 | trace_names = g_list_append(trace_names, trace_name); |
| 1148 | } |
| 1149 | |
| 1150 | return trace_names; |
| 1151 | } |
| 1152 | |
| 1153 | static |
| 1154 | int create_ctf_fs_traces(struct ctf_fs_component *ctf_fs, |
| 1155 | const char *path_param) |
| 1156 | { |
| 1157 | struct ctf_fs_trace *ctf_fs_trace = NULL; |
| 1158 | int ret = 0; |
| 1159 | GList *trace_paths = NULL; |
| 1160 | GList *trace_names = NULL; |
| 1161 | GList *tp_node; |
| 1162 | GList *tn_node; |
| 1163 | |
| 1164 | ret = find_ctf_traces(ctf_fs, &trace_paths, path_param); |
| 1165 | if (ret) { |
| 1166 | goto error; |
| 1167 | } |
| 1168 | |
| 1169 | if (!trace_paths) { |
| 1170 | PERR("No CTF traces recursively found in `%s`.\n", |
| 1171 | path_param); |
| 1172 | goto error; |
| 1173 | } |
| 1174 | |
| 1175 | trace_names = create_trace_names(trace_paths); |
| 1176 | if (!trace_names) { |
| 1177 | PERR("Cannot create trace names from trace paths.\n"); |
| 1178 | goto error; |
| 1179 | } |
| 1180 | |
| 1181 | for (tp_node = trace_paths, tn_node = trace_names; tp_node; |
| 1182 | tp_node = g_list_next(tp_node), |
| 1183 | tn_node = g_list_next(tn_node)) { |
| 1184 | GString *trace_path = tp_node->data; |
| 1185 | GString *trace_name = tn_node->data; |
| 1186 | |
| 1187 | ctf_fs_trace = ctf_fs_trace_create(ctf_fs, trace_path->str, |
| 1188 | trace_name->str); |
| 1189 | if (!ctf_fs_trace) { |
| 1190 | PERR("Cannot create trace for `%s`.\n", |
| 1191 | trace_path->str); |
| 1192 | goto error; |
| 1193 | } |
| 1194 | |
| 1195 | g_ptr_array_add(ctf_fs->traces, ctf_fs_trace); |
| 1196 | ctf_fs_trace = NULL; |
| 1197 | } |
| 1198 | |
| 1199 | goto end; |
| 1200 | |
| 1201 | error: |
| 1202 | ret = -1; |
| 1203 | ctf_fs_trace_destroy(ctf_fs_trace); |
| 1204 | |
| 1205 | end: |
| 1206 | for (tp_node = trace_paths; tp_node; tp_node = g_list_next(tp_node)) { |
| 1207 | if (tp_node->data) { |
| 1208 | g_string_free(tp_node->data, TRUE); |
| 1209 | } |
| 1210 | } |
| 1211 | |
| 1212 | for (tn_node = trace_names; tn_node; tn_node = g_list_next(tn_node)) { |
| 1213 | if (tn_node->data) { |
| 1214 | g_string_free(tn_node->data, TRUE); |
| 1215 | } |
| 1216 | } |
| 1217 | |
| 1218 | if (trace_paths) { |
| 1219 | g_list_free(trace_paths); |
| 1220 | } |
| 1221 | |
| 1222 | if (trace_names) { |
| 1223 | g_list_free(trace_names); |
| 1224 | } |
| 1225 | |
| 1226 | return ret; |
| 1227 | } |
| 1228 | |
| 1229 | static |
| 1230 | struct ctf_fs_component *ctf_fs_create(struct bt_private_component *priv_comp, |
| 1231 | struct bt_value *params) |
| 1232 | { |
| 1233 | struct ctf_fs_component *ctf_fs; |
| 1234 | struct bt_value *value = NULL; |
| 1235 | const char *path_param; |
| 1236 | int ret; |
| 1237 | |
| 1238 | ctf_fs = g_new0(struct ctf_fs_component, 1); |
| 1239 | if (!ctf_fs) { |
| 1240 | goto end; |
| 1241 | } |
| 1242 | |
| 1243 | ret = bt_private_component_set_user_data(priv_comp, ctf_fs); |
| 1244 | assert(ret == 0); |
| 1245 | |
| 1246 | /* |
| 1247 | * We don't need to get a new reference here because as long as |
| 1248 | * our private ctf_fs_component object exists, the containing |
| 1249 | * private component should also exist. |
| 1250 | */ |
| 1251 | ctf_fs->priv_comp = priv_comp; |
| 1252 | value = bt_value_map_get(params, "path"); |
| 1253 | if (!bt_value_is_string(value)) { |
| 1254 | goto error; |
| 1255 | } |
| 1256 | |
| 1257 | ret = bt_value_string_get(value, &path_param); |
| 1258 | assert(ret == 0); |
| 1259 | BT_PUT(value); |
| 1260 | value = bt_value_map_get(params, "offset-s"); |
| 1261 | if (value) { |
| 1262 | int64_t offset; |
| 1263 | |
| 1264 | if (!bt_value_is_integer(value)) { |
| 1265 | fprintf(stderr, |
| 1266 | "offset-s should be an integer\n"); |
| 1267 | goto error; |
| 1268 | } |
| 1269 | ret = bt_value_integer_get(value, &offset); |
| 1270 | assert(ret == 0); |
| 1271 | ctf_fs->options.clock_offset = offset; |
| 1272 | BT_PUT(value); |
| 1273 | } |
| 1274 | |
| 1275 | value = bt_value_map_get(params, "offset-ns"); |
| 1276 | if (value) { |
| 1277 | int64_t offset; |
| 1278 | |
| 1279 | if (!bt_value_is_integer(value)) { |
| 1280 | fprintf(stderr, |
| 1281 | "offset-ns should be an integer\n"); |
| 1282 | goto error; |
| 1283 | } |
| 1284 | ret = bt_value_integer_get(value, &offset); |
| 1285 | assert(ret == 0); |
| 1286 | ctf_fs->options.clock_offset_ns = offset; |
| 1287 | BT_PUT(value); |
| 1288 | } |
| 1289 | |
| 1290 | ctf_fs->error_fp = stderr; |
| 1291 | ctf_fs->page_size = (size_t) getpagesize(); |
| 1292 | ctf_fs->port_data = g_ptr_array_new_with_free_func(port_data_destroy); |
| 1293 | if (!ctf_fs->port_data) { |
| 1294 | goto error; |
| 1295 | } |
| 1296 | |
| 1297 | ctf_fs->traces = g_ptr_array_new_with_free_func(ctf_fs_trace_destroy); |
| 1298 | if (!ctf_fs->traces) { |
| 1299 | goto error; |
| 1300 | } |
| 1301 | |
| 1302 | ret = create_ctf_fs_traces(ctf_fs, path_param); |
| 1303 | if (ret) { |
| 1304 | goto error; |
| 1305 | } |
| 1306 | |
| 1307 | goto end; |
| 1308 | |
| 1309 | error: |
| 1310 | ctf_fs_destroy(ctf_fs); |
| 1311 | ctf_fs = NULL; |
| 1312 | ret = bt_private_component_set_user_data(priv_comp, NULL); |
| 1313 | assert(ret == 0); |
| 1314 | |
| 1315 | end: |
| 1316 | bt_put(value); |
| 1317 | return ctf_fs; |
| 1318 | } |
| 1319 | |
| 1320 | BT_HIDDEN |
| 1321 | enum bt_component_status ctf_fs_init(struct bt_private_component *priv_comp, |
| 1322 | struct bt_value *params, UNUSED_VAR void *init_method_data) |
| 1323 | { |
| 1324 | struct ctf_fs_component *ctf_fs; |
| 1325 | enum bt_component_status ret = BT_COMPONENT_STATUS_OK; |
| 1326 | |
| 1327 | ctf_fs_debug = g_strcmp0(getenv("CTF_FS_DEBUG"), "1") == 0; |
| 1328 | ctf_fs = ctf_fs_create(priv_comp, params); |
| 1329 | if (!ctf_fs) { |
| 1330 | ret = BT_COMPONENT_STATUS_ERROR; |
| 1331 | } |
| 1332 | |
| 1333 | return ret; |
| 1334 | } |
| 1335 | |
| 1336 | BT_HIDDEN |
| 1337 | struct bt_value *ctf_fs_query(struct bt_component_class *comp_class, |
| 1338 | const char *object, struct bt_value *params) |
| 1339 | { |
| 1340 | struct bt_value *results = NULL; |
| 1341 | struct bt_value *path_value = NULL; |
| 1342 | char *metadata_text = NULL; |
| 1343 | FILE *metadata_fp = NULL; |
| 1344 | GString *g_metadata_text = NULL; |
| 1345 | |
| 1346 | if (strcmp(object, "metadata-info") == 0) { |
| 1347 | int ret; |
| 1348 | int bo; |
| 1349 | const char *path; |
| 1350 | bool is_packetized; |
| 1351 | |
| 1352 | results = bt_value_map_create(); |
| 1353 | if (!results) { |
| 1354 | goto error; |
| 1355 | } |
| 1356 | |
| 1357 | if (!bt_value_is_map(params)) { |
| 1358 | fprintf(stderr, |
| 1359 | "Query parameters is not a map value object\n"); |
| 1360 | goto error; |
| 1361 | } |
| 1362 | |
| 1363 | path_value = bt_value_map_get(params, "path"); |
| 1364 | ret = bt_value_string_get(path_value, &path); |
| 1365 | if (ret) { |
| 1366 | fprintf(stderr, |
| 1367 | "Cannot get `path` string parameter\n"); |
| 1368 | goto error; |
| 1369 | } |
| 1370 | |
| 1371 | assert(path); |
| 1372 | metadata_fp = ctf_fs_metadata_open_file(path); |
| 1373 | if (!metadata_fp) { |
| 1374 | fprintf(stderr, |
| 1375 | "Cannot open trace at path `%s`\n", path); |
| 1376 | goto error; |
| 1377 | } |
| 1378 | |
| 1379 | is_packetized = ctf_metadata_decoder_is_packetized(metadata_fp, |
| 1380 | &bo); |
| 1381 | |
| 1382 | if (is_packetized) { |
| 1383 | ret = ctf_metadata_decoder_packetized_file_stream_to_buf( |
| 1384 | metadata_fp, &metadata_text, bo); |
| 1385 | if (ret) { |
| 1386 | fprintf(stderr, |
| 1387 | "Cannot decode packetized metadata file\n"); |
| 1388 | goto error; |
| 1389 | } |
| 1390 | } else { |
| 1391 | long filesize; |
| 1392 | |
| 1393 | fseek(metadata_fp, 0, SEEK_END); |
| 1394 | filesize = ftell(metadata_fp); |
| 1395 | rewind(metadata_fp); |
| 1396 | metadata_text = malloc(filesize + 1); |
| 1397 | if (!metadata_text) { |
| 1398 | fprintf(stderr, |
| 1399 | "Cannot allocate buffer for metadata text\n"); |
| 1400 | goto error; |
| 1401 | } |
| 1402 | |
| 1403 | if (fread(metadata_text, filesize, 1, metadata_fp) != |
| 1404 | 1) { |
| 1405 | fprintf(stderr, |
| 1406 | "Cannot read metadata file\n"); |
| 1407 | goto error; |
| 1408 | } |
| 1409 | |
| 1410 | metadata_text[filesize] = '\0'; |
| 1411 | } |
| 1412 | |
| 1413 | g_metadata_text = g_string_new(NULL); |
| 1414 | if (!g_metadata_text) { |
| 1415 | goto error; |
| 1416 | } |
| 1417 | |
| 1418 | if (strncmp(metadata_text, METADATA_TEXT_SIG, |
| 1419 | sizeof(METADATA_TEXT_SIG) - 1) != 0) { |
| 1420 | g_string_assign(g_metadata_text, METADATA_TEXT_SIG); |
| 1421 | g_string_append(g_metadata_text, " */\n\n"); |
| 1422 | } |
| 1423 | |
| 1424 | g_string_append(g_metadata_text, metadata_text); |
| 1425 | |
| 1426 | ret = bt_value_map_insert_string(results, "text", |
| 1427 | g_metadata_text->str); |
| 1428 | if (ret) { |
| 1429 | fprintf(stderr, "Cannot insert metadata text into results\n"); |
| 1430 | goto error; |
| 1431 | } |
| 1432 | |
| 1433 | ret = bt_value_map_insert_bool(results, "is-packetized", |
| 1434 | is_packetized); |
| 1435 | if (ret) { |
| 1436 | fprintf(stderr, "Cannot insert is packetized into results\n"); |
| 1437 | goto error; |
| 1438 | } |
| 1439 | } else { |
| 1440 | fprintf(stderr, "Unknown query object `%s`\n", object); |
| 1441 | goto error; |
| 1442 | } |
| 1443 | |
| 1444 | goto end; |
| 1445 | |
| 1446 | error: |
| 1447 | BT_PUT(results); |
| 1448 | |
| 1449 | end: |
| 1450 | bt_put(path_value); |
| 1451 | free(metadata_text); |
| 1452 | |
| 1453 | if (g_metadata_text) { |
| 1454 | g_string_free(g_metadata_text, TRUE); |
| 1455 | } |
| 1456 | |
| 1457 | if (metadata_fp) { |
| 1458 | fclose(metadata_fp); |
| 1459 | } |
| 1460 | return results; |
| 1461 | } |