| 1 | /* |
| 2 | * SPDX-License-Identifier: MIT |
| 3 | * |
| 4 | * Copyright 2019 Philippe Proulx <pproulx@efficios.com> |
| 5 | */ |
| 6 | |
| 7 | #include <glib.h> |
| 8 | #include <stdio.h> |
| 9 | |
| 10 | #include <babeltrace2/babeltrace.h> |
| 11 | |
| 12 | #include "common/assert.h" |
| 13 | #include "compat/endian.h" /* IWYU pragma: keep */ |
| 14 | #include "ctfser/ctfser.h" |
| 15 | |
| 16 | #include "fs-sink-ctf-meta.hpp" |
| 17 | #include "fs-sink-stream.hpp" |
| 18 | #include "fs-sink-trace.hpp" |
| 19 | #include "translate-trace-ir-to-ctf-ir.hpp" |
| 20 | |
| 21 | void fs_sink_stream_destroy(struct fs_sink_stream *stream) |
| 22 | { |
| 23 | if (!stream) { |
| 24 | goto end; |
| 25 | } |
| 26 | |
| 27 | bt_ctfser_fini(&stream->ctfser); |
| 28 | |
| 29 | if (stream->file_name) { |
| 30 | g_string_free(stream->file_name, TRUE); |
| 31 | stream->file_name = NULL; |
| 32 | } |
| 33 | |
| 34 | bt_packet_put_ref(stream->packet_state.packet); |
| 35 | delete stream; |
| 36 | |
| 37 | end: |
| 38 | return; |
| 39 | } |
| 40 | |
| 41 | static bool stream_file_name_exists(struct fs_sink_trace *trace, const char *name) |
| 42 | { |
| 43 | bool exists = false; |
| 44 | GHashTableIter iter; |
| 45 | gpointer key, value; |
| 46 | |
| 47 | g_hash_table_iter_init(&iter, trace->streams); |
| 48 | |
| 49 | while (g_hash_table_iter_next(&iter, &key, &value)) { |
| 50 | struct fs_sink_stream *stream = (fs_sink_stream *) value; |
| 51 | |
| 52 | if (strcmp(name, stream->file_name->str) == 0) { |
| 53 | exists = true; |
| 54 | goto end; |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | end: |
| 59 | return exists; |
| 60 | } |
| 61 | |
| 62 | static GString *sanitize_stream_file_name(const char *file_name) |
| 63 | { |
| 64 | GString *san_file_name = g_string_new(NULL); |
| 65 | const char *ch; |
| 66 | gchar *basename; |
| 67 | |
| 68 | BT_ASSERT(san_file_name); |
| 69 | BT_ASSERT(file_name); |
| 70 | basename = g_path_get_basename(file_name); |
| 71 | |
| 72 | for (ch = basename; *ch != '\0'; ch++) { |
| 73 | if (*ch == '/') { |
| 74 | g_string_append_c(san_file_name, '_'); |
| 75 | } else { |
| 76 | g_string_append_c(san_file_name, *ch); |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | /* Do not allow `.` and `..` either */ |
| 81 | if (strcmp(san_file_name->str, ".") == 0 || strcmp(san_file_name->str, "..") == 0) { |
| 82 | g_string_assign(san_file_name, "stream"); |
| 83 | } |
| 84 | |
| 85 | g_free(basename); |
| 86 | return san_file_name; |
| 87 | } |
| 88 | |
| 89 | static GString *make_unique_stream_file_name(struct fs_sink_trace *trace, const char *base) |
| 90 | { |
| 91 | GString *san_base = sanitize_stream_file_name(base); |
| 92 | GString *name = g_string_new(san_base->str); |
| 93 | unsigned int suffix = 0; |
| 94 | |
| 95 | BT_ASSERT(name); |
| 96 | |
| 97 | while (stream_file_name_exists(trace, name->str) || strcmp(name->str, "metadata") == 0) { |
| 98 | g_string_printf(name, "%s-%u", san_base->str, suffix); |
| 99 | suffix++; |
| 100 | } |
| 101 | |
| 102 | g_string_free(san_base, TRUE); |
| 103 | return name; |
| 104 | } |
| 105 | |
| 106 | static void set_stream_file_name(struct fs_sink_stream *stream) |
| 107 | { |
| 108 | const char *base_name = bt_stream_get_name(stream->ir_stream); |
| 109 | |
| 110 | if (!base_name) { |
| 111 | base_name = "stream"; |
| 112 | } |
| 113 | |
| 114 | BT_ASSERT(!stream->file_name); |
| 115 | stream->file_name = make_unique_stream_file_name(stream->trace, base_name); |
| 116 | } |
| 117 | |
| 118 | struct fs_sink_stream *fs_sink_stream_create(struct fs_sink_trace *trace, |
| 119 | const bt_stream *ir_stream) |
| 120 | { |
| 121 | fs_sink_stream *stream = new fs_sink_stream {trace->logger}; |
| 122 | int ret; |
| 123 | GString *path = g_string_new(trace->path->str); |
| 124 | |
| 125 | stream->trace = trace; |
| 126 | stream->ir_stream = ir_stream; |
| 127 | stream->packet_state.beginning_cs = UINT64_C(-1); |
| 128 | stream->packet_state.end_cs = UINT64_C(-1); |
| 129 | stream->prev_packet_state.end_cs = UINT64_C(-1); |
| 130 | stream->prev_packet_state.discarded_events_counter = UINT64_C(-1); |
| 131 | stream->prev_packet_state.seq_num = UINT64_C(-1); |
| 132 | ret = try_translate_stream_class_trace_ir_to_ctf_ir( |
| 133 | trace->fs_sink, trace->trace, bt_stream_borrow_class_const(ir_stream), &stream->sc); |
| 134 | if (ret) { |
| 135 | goto error; |
| 136 | } |
| 137 | |
| 138 | set_stream_file_name(stream); |
| 139 | g_string_append_printf(path, "/%s", stream->file_name->str); |
| 140 | ret = bt_ctfser_init(&stream->ctfser, path->str, static_cast<int>(stream->logger.level())); |
| 141 | if (ret) { |
| 142 | goto error; |
| 143 | } |
| 144 | |
| 145 | g_hash_table_insert(trace->streams, (gpointer) ir_stream, stream); |
| 146 | goto end; |
| 147 | |
| 148 | error: |
| 149 | fs_sink_stream_destroy(stream); |
| 150 | stream = NULL; |
| 151 | |
| 152 | end: |
| 153 | if (path) { |
| 154 | g_string_free(path, TRUE); |
| 155 | } |
| 156 | |
| 157 | return stream; |
| 158 | } |
| 159 | |
| 160 | static int write_field(struct fs_sink_stream *stream, struct fs_sink_ctf_field_class *fc, |
| 161 | const bt_field *field); |
| 162 | |
| 163 | static inline int write_bool_field(struct fs_sink_stream *stream, |
| 164 | struct fs_sink_ctf_field_class_bool *fc, const bt_field *field) |
| 165 | { |
| 166 | /* |
| 167 | * CTF 1.8 has no boolean field class type, so this component |
| 168 | * translates this boolean field to an 8-bit unsigned integer |
| 169 | * field which has the value 0 (false) or 1 (true). |
| 170 | */ |
| 171 | return bt_ctfser_write_unsigned_int(&stream->ctfser, bt_field_bool_get_value(field) ? 1 : 0, |
| 172 | fc->base.base.alignment, fc->base.size, BYTE_ORDER); |
| 173 | } |
| 174 | |
| 175 | static inline int write_bit_array_field(struct fs_sink_stream *stream, |
| 176 | struct fs_sink_ctf_field_class_bit_array *fc, |
| 177 | const bt_field *field) |
| 178 | { |
| 179 | /* |
| 180 | * CTF 1.8 has no bit array field class type, so this component |
| 181 | * translates this bit array field to an unsigned integer field. |
| 182 | */ |
| 183 | return bt_ctfser_write_unsigned_int(&stream->ctfser, |
| 184 | bt_field_bit_array_get_value_as_integer(field), |
| 185 | fc->base.alignment, fc->size, BYTE_ORDER); |
| 186 | } |
| 187 | |
| 188 | static inline int write_int_field(struct fs_sink_stream *stream, |
| 189 | struct fs_sink_ctf_field_class_int *fc, const bt_field *field) |
| 190 | { |
| 191 | int ret; |
| 192 | |
| 193 | if (fc->is_signed) { |
| 194 | ret = bt_ctfser_write_signed_int(&stream->ctfser, bt_field_integer_signed_get_value(field), |
| 195 | fc->base.base.alignment, fc->base.size, BYTE_ORDER); |
| 196 | } else { |
| 197 | ret = bt_ctfser_write_unsigned_int(&stream->ctfser, |
| 198 | bt_field_integer_unsigned_get_value(field), |
| 199 | fc->base.base.alignment, fc->base.size, BYTE_ORDER); |
| 200 | } |
| 201 | |
| 202 | return ret; |
| 203 | } |
| 204 | |
| 205 | static inline int write_float_field(struct fs_sink_stream *stream, |
| 206 | struct fs_sink_ctf_field_class_float *fc, const bt_field *field) |
| 207 | { |
| 208 | int ret; |
| 209 | double val; |
| 210 | |
| 211 | if (fc->base.size == 32) { |
| 212 | val = (double) bt_field_real_single_precision_get_value(field); |
| 213 | ret = bt_ctfser_write_float32(&stream->ctfser, val, fc->base.base.alignment, BYTE_ORDER); |
| 214 | } else { |
| 215 | val = bt_field_real_double_precision_get_value(field); |
| 216 | ret = bt_ctfser_write_float64(&stream->ctfser, val, fc->base.base.alignment, BYTE_ORDER); |
| 217 | } |
| 218 | |
| 219 | return ret; |
| 220 | } |
| 221 | |
| 222 | static inline int write_string_field(struct fs_sink_stream *stream, const bt_field *field) |
| 223 | { |
| 224 | return bt_ctfser_write_string(&stream->ctfser, bt_field_string_get_value(field)); |
| 225 | } |
| 226 | |
| 227 | static inline int write_array_base_field_elements(struct fs_sink_stream *stream, |
| 228 | struct fs_sink_ctf_field_class_array_base *fc, |
| 229 | const bt_field *field) |
| 230 | { |
| 231 | uint64_t i; |
| 232 | uint64_t len = bt_field_array_get_length(field); |
| 233 | int ret = 0; |
| 234 | |
| 235 | for (i = 0; i < len; i++) { |
| 236 | const bt_field *elem_field = bt_field_array_borrow_element_field_by_index_const(field, i); |
| 237 | ret = write_field(stream, fc->elem_fc, elem_field); |
| 238 | if (G_UNLIKELY(ret)) { |
| 239 | goto end; |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | end: |
| 244 | return ret; |
| 245 | } |
| 246 | |
| 247 | static inline int write_sequence_field(struct fs_sink_stream *stream, |
| 248 | struct fs_sink_ctf_field_class_sequence *fc, |
| 249 | const bt_field *field) |
| 250 | { |
| 251 | int ret; |
| 252 | |
| 253 | if (fc->length_is_before) { |
| 254 | ret = bt_ctfser_write_unsigned_int(&stream->ctfser, bt_field_array_get_length(field), 8, 32, |
| 255 | BYTE_ORDER); |
| 256 | if (G_UNLIKELY(ret)) { |
| 257 | goto end; |
| 258 | } |
| 259 | } |
| 260 | |
| 261 | ret = write_array_base_field_elements(stream, &fc->base, field); |
| 262 | |
| 263 | end: |
| 264 | return ret; |
| 265 | } |
| 266 | |
| 267 | static inline int write_struct_field(struct fs_sink_stream *stream, |
| 268 | struct fs_sink_ctf_field_class_struct *fc, |
| 269 | const bt_field *field, bool align_struct) |
| 270 | { |
| 271 | int ret = 0; |
| 272 | uint64_t i; |
| 273 | |
| 274 | if (G_LIKELY(align_struct)) { |
| 275 | ret = bt_ctfser_align_offset_in_current_packet(&stream->ctfser, fc->base.alignment); |
| 276 | if (G_UNLIKELY(ret)) { |
| 277 | goto end; |
| 278 | } |
| 279 | } |
| 280 | |
| 281 | for (i = 0; i < fc->members->len; i++) { |
| 282 | const bt_field *memb_field = |
| 283 | bt_field_structure_borrow_member_field_by_index_const(field, i); |
| 284 | struct fs_sink_ctf_field_class *member_fc = |
| 285 | fs_sink_ctf_field_class_struct_borrow_member_by_index(fc, i)->fc; |
| 286 | |
| 287 | ret = write_field(stream, member_fc, memb_field); |
| 288 | if (G_UNLIKELY(ret)) { |
| 289 | goto end; |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | end: |
| 294 | return ret; |
| 295 | } |
| 296 | |
| 297 | static inline int write_option_field(struct fs_sink_stream *stream, |
| 298 | struct fs_sink_ctf_field_class_option *fc, |
| 299 | const bt_field *field) |
| 300 | { |
| 301 | int ret; |
| 302 | const bt_field *content_field = bt_field_option_borrow_field_const(field); |
| 303 | |
| 304 | ret = bt_ctfser_write_unsigned_int(&stream->ctfser, content_field ? 1 : 0, 8, 8, BYTE_ORDER); |
| 305 | if (G_UNLIKELY(ret)) { |
| 306 | goto end; |
| 307 | } |
| 308 | |
| 309 | /* |
| 310 | * CTF 1.8 has no option field class type, so this component |
| 311 | * translates the option field class to a variant field class |
| 312 | * where the options are: |
| 313 | * |
| 314 | * * An empty structure field class (field occupies 0 bits). |
| 315 | * * The optional field class itself. |
| 316 | * |
| 317 | * If `content_field` is `NULL`, do not write anything (empty |
| 318 | * structure). |
| 319 | */ |
| 320 | if (content_field) { |
| 321 | ret = write_field(stream, fc->content_fc, content_field); |
| 322 | } |
| 323 | |
| 324 | end: |
| 325 | return ret; |
| 326 | } |
| 327 | |
| 328 | static inline int write_variant_field(struct fs_sink_stream *stream, |
| 329 | struct fs_sink_ctf_field_class_variant *fc, |
| 330 | const bt_field *field) |
| 331 | { |
| 332 | uint64_t opt_index = bt_field_variant_get_selected_option_index(field); |
| 333 | int ret; |
| 334 | |
| 335 | if (fc->tag_is_before) { |
| 336 | ret = bt_ctfser_write_unsigned_int(&stream->ctfser, opt_index, 8, 16, BYTE_ORDER); |
| 337 | if (G_UNLIKELY(ret)) { |
| 338 | goto end; |
| 339 | } |
| 340 | } |
| 341 | |
| 342 | ret = write_field(stream, |
| 343 | fs_sink_ctf_field_class_variant_borrow_option_by_index(fc, opt_index)->fc, |
| 344 | bt_field_variant_borrow_selected_option_field_const(field)); |
| 345 | |
| 346 | end: |
| 347 | return ret; |
| 348 | } |
| 349 | |
| 350 | static int write_field(struct fs_sink_stream *stream, struct fs_sink_ctf_field_class *fc, |
| 351 | const bt_field *field) |
| 352 | { |
| 353 | int ret; |
| 354 | |
| 355 | switch (fc->type) { |
| 356 | case FS_SINK_CTF_FIELD_CLASS_TYPE_BOOL: |
| 357 | ret = write_bool_field(stream, fs_sink_ctf_field_class_as_bool(fc), field); |
| 358 | break; |
| 359 | case FS_SINK_CTF_FIELD_CLASS_TYPE_BIT_ARRAY: |
| 360 | ret = write_bit_array_field(stream, fs_sink_ctf_field_class_as_bit_array(fc), field); |
| 361 | break; |
| 362 | case FS_SINK_CTF_FIELD_CLASS_TYPE_INT: |
| 363 | ret = write_int_field(stream, fs_sink_ctf_field_class_as_int(fc), field); |
| 364 | break; |
| 365 | case FS_SINK_CTF_FIELD_CLASS_TYPE_FLOAT: |
| 366 | ret = write_float_field(stream, fs_sink_ctf_field_class_as_float(fc), field); |
| 367 | break; |
| 368 | case FS_SINK_CTF_FIELD_CLASS_TYPE_STRING: |
| 369 | ret = write_string_field(stream, field); |
| 370 | break; |
| 371 | case FS_SINK_CTF_FIELD_CLASS_TYPE_STRUCT: |
| 372 | ret = write_struct_field(stream, fs_sink_ctf_field_class_as_struct(fc), field, true); |
| 373 | break; |
| 374 | case FS_SINK_CTF_FIELD_CLASS_TYPE_ARRAY: |
| 375 | ret = write_array_base_field_elements(stream, fs_sink_ctf_field_class_as_array_base(fc), |
| 376 | field); |
| 377 | break; |
| 378 | case FS_SINK_CTF_FIELD_CLASS_TYPE_SEQUENCE: |
| 379 | ret = write_sequence_field(stream, fs_sink_ctf_field_class_as_sequence(fc), field); |
| 380 | break; |
| 381 | case FS_SINK_CTF_FIELD_CLASS_TYPE_OPTION: |
| 382 | ret = write_option_field(stream, fs_sink_ctf_field_class_as_option(fc), field); |
| 383 | break; |
| 384 | case FS_SINK_CTF_FIELD_CLASS_TYPE_VARIANT: |
| 385 | ret = write_variant_field(stream, fs_sink_ctf_field_class_as_variant(fc), field); |
| 386 | break; |
| 387 | default: |
| 388 | bt_common_abort(); |
| 389 | } |
| 390 | |
| 391 | return ret; |
| 392 | } |
| 393 | |
| 394 | static inline int write_event_header(struct fs_sink_stream *stream, const bt_clock_snapshot *cs, |
| 395 | struct fs_sink_ctf_event_class *ec) |
| 396 | { |
| 397 | int ret; |
| 398 | |
| 399 | /* Event class ID */ |
| 400 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 401 | &stream->ctfser, bt_event_class_get_id(ec->ir_ec), 8, 64, BYTE_ORDER); |
| 402 | if (G_UNLIKELY(ret)) { |
| 403 | goto end; |
| 404 | } |
| 405 | |
| 406 | /* Time */ |
| 407 | if (stream->sc->default_clock_class) { |
| 408 | BT_ASSERT_DBG(cs); |
| 409 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 410 | &stream->ctfser, bt_clock_snapshot_get_value(cs), 8, 64, BYTE_ORDER); |
| 411 | if (G_UNLIKELY(ret)) { |
| 412 | goto end; |
| 413 | } |
| 414 | } |
| 415 | |
| 416 | end: |
| 417 | return ret; |
| 418 | } |
| 419 | |
| 420 | int fs_sink_stream_write_event(struct fs_sink_stream *stream, const bt_clock_snapshot *cs, |
| 421 | const bt_event *event, struct fs_sink_ctf_event_class *ec) |
| 422 | { |
| 423 | int ret; |
| 424 | const bt_field *field; |
| 425 | |
| 426 | /* Header */ |
| 427 | ret = write_event_header(stream, cs, ec); |
| 428 | if (G_UNLIKELY(ret)) { |
| 429 | goto end; |
| 430 | } |
| 431 | |
| 432 | /* Common context */ |
| 433 | if (stream->sc->event_common_context_fc) { |
| 434 | field = bt_event_borrow_common_context_field_const(event); |
| 435 | BT_ASSERT_DBG(field); |
| 436 | ret = write_struct_field( |
| 437 | stream, fs_sink_ctf_field_class_as_struct(stream->sc->event_common_context_fc), field, |
| 438 | true); |
| 439 | if (G_UNLIKELY(ret)) { |
| 440 | goto end; |
| 441 | } |
| 442 | } |
| 443 | |
| 444 | /* Specific context */ |
| 445 | if (ec->spec_context_fc) { |
| 446 | field = bt_event_borrow_specific_context_field_const(event); |
| 447 | BT_ASSERT_DBG(field); |
| 448 | ret = write_struct_field(stream, fs_sink_ctf_field_class_as_struct(ec->spec_context_fc), |
| 449 | field, true); |
| 450 | if (G_UNLIKELY(ret)) { |
| 451 | goto end; |
| 452 | } |
| 453 | } |
| 454 | |
| 455 | /* Specific context */ |
| 456 | if (ec->payload_fc) { |
| 457 | field = bt_event_borrow_payload_field_const(event); |
| 458 | BT_ASSERT_DBG(field); |
| 459 | ret = write_struct_field(stream, fs_sink_ctf_field_class_as_struct(ec->payload_fc), field, |
| 460 | true); |
| 461 | if (G_UNLIKELY(ret)) { |
| 462 | goto end; |
| 463 | } |
| 464 | } |
| 465 | |
| 466 | end: |
| 467 | return ret; |
| 468 | } |
| 469 | |
| 470 | static int write_packet_context(struct fs_sink_stream *stream) |
| 471 | { |
| 472 | int ret; |
| 473 | |
| 474 | /* Packet total size */ |
| 475 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 476 | &stream->ctfser, stream->packet_state.total_size, 8, 64, BYTE_ORDER); |
| 477 | if (ret) { |
| 478 | goto end; |
| 479 | } |
| 480 | |
| 481 | /* Packet content size */ |
| 482 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 483 | &stream->ctfser, stream->packet_state.content_size, 8, 64, BYTE_ORDER); |
| 484 | if (ret) { |
| 485 | goto end; |
| 486 | } |
| 487 | |
| 488 | if (stream->sc->packets_have_ts_begin) { |
| 489 | /* Beginning time */ |
| 490 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 491 | &stream->ctfser, stream->packet_state.beginning_cs, 8, 64, BYTE_ORDER); |
| 492 | if (ret) { |
| 493 | goto end; |
| 494 | } |
| 495 | } |
| 496 | |
| 497 | if (stream->sc->packets_have_ts_end) { |
| 498 | /* End time */ |
| 499 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 500 | &stream->ctfser, stream->packet_state.end_cs, 8, 64, BYTE_ORDER); |
| 501 | if (ret) { |
| 502 | goto end; |
| 503 | } |
| 504 | } |
| 505 | |
| 506 | if (stream->sc->has_discarded_events) { |
| 507 | /* Discarded event counter */ |
| 508 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 509 | &stream->ctfser, stream->packet_state.discarded_events_counter, 8, 64, BYTE_ORDER); |
| 510 | if (ret) { |
| 511 | goto end; |
| 512 | } |
| 513 | } |
| 514 | |
| 515 | /* Sequence number */ |
| 516 | ret = bt_ctfser_write_byte_aligned_unsigned_int(&stream->ctfser, stream->packet_state.seq_num, |
| 517 | 8, 64, BYTE_ORDER); |
| 518 | if (ret) { |
| 519 | goto end; |
| 520 | } |
| 521 | |
| 522 | /* Other members */ |
| 523 | if (stream->sc->packet_context_fc) { |
| 524 | const bt_field *packet_context_field; |
| 525 | |
| 526 | BT_ASSERT(stream->packet_state.packet); |
| 527 | packet_context_field = bt_packet_borrow_context_field_const(stream->packet_state.packet); |
| 528 | BT_ASSERT(packet_context_field); |
| 529 | ret = write_struct_field(stream, |
| 530 | fs_sink_ctf_field_class_as_struct(stream->sc->packet_context_fc), |
| 531 | packet_context_field, false); |
| 532 | if (ret) { |
| 533 | goto end; |
| 534 | } |
| 535 | } |
| 536 | |
| 537 | end: |
| 538 | return ret; |
| 539 | } |
| 540 | |
| 541 | int fs_sink_stream_open_packet(struct fs_sink_stream *stream, const bt_clock_snapshot *cs, |
| 542 | const bt_packet *packet) |
| 543 | { |
| 544 | int ret; |
| 545 | uint64_t i; |
| 546 | |
| 547 | BT_ASSERT(!stream->packet_state.is_open); |
| 548 | bt_packet_put_ref(stream->packet_state.packet); |
| 549 | stream->packet_state.packet = packet; |
| 550 | bt_packet_get_ref(stream->packet_state.packet); |
| 551 | if (cs) { |
| 552 | stream->packet_state.beginning_cs = bt_clock_snapshot_get_value(cs); |
| 553 | } |
| 554 | |
| 555 | /* Open packet */ |
| 556 | ret = bt_ctfser_open_packet(&stream->ctfser); |
| 557 | if (ret) { |
| 558 | /* bt_ctfser_open_packet() logs errors */ |
| 559 | goto end; |
| 560 | } |
| 561 | |
| 562 | /* Packet header: magic */ |
| 563 | ret = bt_ctfser_write_byte_aligned_unsigned_int(&stream->ctfser, UINT64_C(0xc1fc1fc1), 8, 32, |
| 564 | BYTE_ORDER); |
| 565 | if (ret) { |
| 566 | BT_CPPLOGE_SPEC(stream->logger, "Error writing packet header magic: stream-file-name={}", |
| 567 | stream->file_name->str); |
| 568 | goto end; |
| 569 | } |
| 570 | |
| 571 | /* Packet header: UUID */ |
| 572 | for (i = 0; i < BT_UUID_LEN; i++) { |
| 573 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 574 | &stream->ctfser, (uint64_t) stream->sc->trace->uuid[i], 8, 8, BYTE_ORDER); |
| 575 | if (ret) { |
| 576 | BT_CPPLOGE_SPEC(stream->logger, "Error writing packet header UUID: stream-file-name={}", |
| 577 | stream->file_name->str); |
| 578 | goto end; |
| 579 | } |
| 580 | } |
| 581 | |
| 582 | /* Packet header: stream class ID */ |
| 583 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 584 | &stream->ctfser, bt_stream_class_get_id(stream->sc->ir_sc), 8, 64, BYTE_ORDER); |
| 585 | if (ret) { |
| 586 | BT_CPPLOGE_SPEC(stream->logger, |
| 587 | "Error writing packet header stream class id: " |
| 588 | "stream-file-name={}, stream-class-id={}", |
| 589 | stream->file_name->str, bt_stream_class_get_id(stream->sc->ir_sc)); |
| 590 | goto end; |
| 591 | } |
| 592 | |
| 593 | /* Packet header: stream ID */ |
| 594 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 595 | &stream->ctfser, bt_stream_get_id(stream->ir_stream), 8, 64, BYTE_ORDER); |
| 596 | if (ret) { |
| 597 | BT_CPPLOGE_SPEC(stream->logger, |
| 598 | "Error writing packet header stream id: " |
| 599 | "stream-file-name={}, stream-id={}", |
| 600 | stream->file_name->str, bt_stream_get_id(stream->ir_stream)); |
| 601 | goto end; |
| 602 | } |
| 603 | |
| 604 | /* Save packet context's offset to rewrite it later */ |
| 605 | stream->packet_state.context_offset_bits = |
| 606 | bt_ctfser_get_offset_in_current_packet_bits(&stream->ctfser); |
| 607 | |
| 608 | /* Write packet context just to advance to content (first event) */ |
| 609 | ret = write_packet_context(stream); |
| 610 | if (ret) { |
| 611 | goto end; |
| 612 | } |
| 613 | |
| 614 | stream->packet_state.is_open = true; |
| 615 | |
| 616 | end: |
| 617 | return ret; |
| 618 | } |
| 619 | |
| 620 | int fs_sink_stream_close_packet(struct fs_sink_stream *stream, const bt_clock_snapshot *cs) |
| 621 | { |
| 622 | int ret; |
| 623 | |
| 624 | BT_ASSERT(stream->packet_state.is_open); |
| 625 | |
| 626 | if (cs) { |
| 627 | stream->packet_state.end_cs = bt_clock_snapshot_get_value(cs); |
| 628 | } |
| 629 | |
| 630 | stream->packet_state.content_size = |
| 631 | bt_ctfser_get_offset_in_current_packet_bits(&stream->ctfser); |
| 632 | stream->packet_state.total_size = (stream->packet_state.content_size + 7) & ~UINT64_C(7); |
| 633 | |
| 634 | /* Rewrite packet context */ |
| 635 | bt_ctfser_set_offset_in_current_packet_bits(&stream->ctfser, |
| 636 | stream->packet_state.context_offset_bits); |
| 637 | ret = write_packet_context(stream); |
| 638 | if (ret) { |
| 639 | goto end; |
| 640 | } |
| 641 | |
| 642 | /* Close packet */ |
| 643 | bt_ctfser_close_current_packet(&stream->ctfser, stream->packet_state.total_size / 8); |
| 644 | |
| 645 | /* Partially copy current packet state to previous packet state */ |
| 646 | stream->prev_packet_state.end_cs = stream->packet_state.end_cs; |
| 647 | stream->prev_packet_state.discarded_events_counter = |
| 648 | stream->packet_state.discarded_events_counter; |
| 649 | stream->prev_packet_state.seq_num = stream->packet_state.seq_num; |
| 650 | |
| 651 | /* Reset current packet state */ |
| 652 | stream->packet_state.beginning_cs = UINT64_C(-1); |
| 653 | stream->packet_state.end_cs = UINT64_C(-1); |
| 654 | stream->packet_state.content_size = 0; |
| 655 | stream->packet_state.total_size = 0; |
| 656 | stream->packet_state.seq_num += 1; |
| 657 | stream->packet_state.context_offset_bits = 0; |
| 658 | stream->packet_state.is_open = false; |
| 659 | BT_PACKET_PUT_REF_AND_RESET(stream->packet_state.packet); |
| 660 | |
| 661 | end: |
| 662 | return ret; |
| 663 | } |