| 1 | /* |
| 2 | * SPDX-License-Identifier: MIT |
| 3 | * |
| 4 | * Copyright 2019 Philippe Proulx <pproulx@efficios.com> |
| 5 | */ |
| 6 | |
| 7 | #define BT_COMP_LOG_SELF_COMP (stream->trace->fs_sink->self_comp) |
| 8 | #define BT_LOG_OUTPUT_LEVEL (stream->log_level) |
| 9 | #define BT_LOG_TAG "PLUGIN/SINK.CTF.FS/STREAM" |
| 10 | #include "logging/comp-logging.h" |
| 11 | |
| 12 | #include <babeltrace2/babeltrace.h> |
| 13 | #include <stdio.h> |
| 14 | #include <stdbool.h> |
| 15 | #include <glib.h> |
| 16 | #include "common/assert.h" |
| 17 | #include "ctfser/ctfser.h" |
| 18 | #include "compat/endian.h" |
| 19 | |
| 20 | #include "fs-sink.hpp" |
| 21 | #include "fs-sink-trace.hpp" |
| 22 | #include "fs-sink-stream.hpp" |
| 23 | #include "translate-trace-ir-to-ctf-ir.hpp" |
| 24 | |
| 25 | void fs_sink_stream_destroy(struct fs_sink_stream *stream) |
| 26 | { |
| 27 | if (!stream) { |
| 28 | goto end; |
| 29 | } |
| 30 | |
| 31 | bt_ctfser_fini(&stream->ctfser); |
| 32 | |
| 33 | if (stream->file_name) { |
| 34 | g_string_free(stream->file_name, TRUE); |
| 35 | stream->file_name = NULL; |
| 36 | } |
| 37 | |
| 38 | bt_packet_put_ref(stream->packet_state.packet); |
| 39 | g_free(stream); |
| 40 | |
| 41 | end: |
| 42 | return; |
| 43 | } |
| 44 | |
| 45 | static bool stream_file_name_exists(struct fs_sink_trace *trace, const char *name) |
| 46 | { |
| 47 | bool exists = false; |
| 48 | GHashTableIter iter; |
| 49 | gpointer key, value; |
| 50 | |
| 51 | g_hash_table_iter_init(&iter, trace->streams); |
| 52 | |
| 53 | while (g_hash_table_iter_next(&iter, &key, &value)) { |
| 54 | struct fs_sink_stream *stream = (fs_sink_stream *) value; |
| 55 | |
| 56 | if (strcmp(name, stream->file_name->str) == 0) { |
| 57 | exists = true; |
| 58 | goto end; |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | end: |
| 63 | return exists; |
| 64 | } |
| 65 | |
| 66 | static GString *sanitize_stream_file_name(const char *file_name) |
| 67 | { |
| 68 | GString *san_file_name = g_string_new(NULL); |
| 69 | const char *ch; |
| 70 | gchar *basename; |
| 71 | |
| 72 | BT_ASSERT(san_file_name); |
| 73 | BT_ASSERT(file_name); |
| 74 | basename = g_path_get_basename(file_name); |
| 75 | |
| 76 | for (ch = basename; *ch != '\0'; ch++) { |
| 77 | if (*ch == '/') { |
| 78 | g_string_append_c(san_file_name, '_'); |
| 79 | } else { |
| 80 | g_string_append_c(san_file_name, *ch); |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | /* Do not allow `.` and `..` either */ |
| 85 | if (strcmp(san_file_name->str, ".") == 0 || strcmp(san_file_name->str, "..") == 0) { |
| 86 | g_string_assign(san_file_name, "stream"); |
| 87 | } |
| 88 | |
| 89 | g_free(basename); |
| 90 | return san_file_name; |
| 91 | } |
| 92 | |
| 93 | static GString *make_unique_stream_file_name(struct fs_sink_trace *trace, const char *base) |
| 94 | { |
| 95 | GString *san_base = sanitize_stream_file_name(base); |
| 96 | GString *name = g_string_new(san_base->str); |
| 97 | unsigned int suffix = 0; |
| 98 | |
| 99 | BT_ASSERT(name); |
| 100 | |
| 101 | while (stream_file_name_exists(trace, name->str) || strcmp(name->str, "metadata") == 0) { |
| 102 | g_string_printf(name, "%s-%u", san_base->str, suffix); |
| 103 | suffix++; |
| 104 | } |
| 105 | |
| 106 | g_string_free(san_base, TRUE); |
| 107 | return name; |
| 108 | } |
| 109 | |
| 110 | static void set_stream_file_name(struct fs_sink_stream *stream) |
| 111 | { |
| 112 | const char *base_name = bt_stream_get_name(stream->ir_stream); |
| 113 | |
| 114 | if (!base_name) { |
| 115 | base_name = "stream"; |
| 116 | } |
| 117 | |
| 118 | BT_ASSERT(!stream->file_name); |
| 119 | stream->file_name = make_unique_stream_file_name(stream->trace, base_name); |
| 120 | } |
| 121 | |
| 122 | struct fs_sink_stream *fs_sink_stream_create(struct fs_sink_trace *trace, |
| 123 | const bt_stream *ir_stream) |
| 124 | { |
| 125 | struct fs_sink_stream *stream = g_new0(struct fs_sink_stream, 1); |
| 126 | int ret; |
| 127 | GString *path = g_string_new(trace->path->str); |
| 128 | |
| 129 | if (!stream) { |
| 130 | goto end; |
| 131 | } |
| 132 | |
| 133 | stream->log_level = trace->log_level; |
| 134 | stream->trace = trace; |
| 135 | stream->ir_stream = ir_stream; |
| 136 | stream->packet_state.beginning_cs = UINT64_C(-1); |
| 137 | stream->packet_state.end_cs = UINT64_C(-1); |
| 138 | stream->prev_packet_state.end_cs = UINT64_C(-1); |
| 139 | stream->prev_packet_state.discarded_events_counter = UINT64_C(-1); |
| 140 | stream->prev_packet_state.seq_num = UINT64_C(-1); |
| 141 | ret = try_translate_stream_class_trace_ir_to_ctf_ir( |
| 142 | trace->fs_sink, trace->trace, bt_stream_borrow_class_const(ir_stream), &stream->sc); |
| 143 | if (ret) { |
| 144 | goto error; |
| 145 | } |
| 146 | |
| 147 | set_stream_file_name(stream); |
| 148 | g_string_append_printf(path, "/%s", stream->file_name->str); |
| 149 | ret = bt_ctfser_init(&stream->ctfser, path->str, stream->log_level); |
| 150 | if (ret) { |
| 151 | goto error; |
| 152 | } |
| 153 | |
| 154 | g_hash_table_insert(trace->streams, (gpointer) ir_stream, stream); |
| 155 | goto end; |
| 156 | |
| 157 | error: |
| 158 | fs_sink_stream_destroy(stream); |
| 159 | stream = NULL; |
| 160 | |
| 161 | end: |
| 162 | if (path) { |
| 163 | g_string_free(path, TRUE); |
| 164 | } |
| 165 | |
| 166 | return stream; |
| 167 | } |
| 168 | |
| 169 | static int write_field(struct fs_sink_stream *stream, struct fs_sink_ctf_field_class *fc, |
| 170 | const bt_field *field); |
| 171 | |
| 172 | static inline int write_bool_field(struct fs_sink_stream *stream, |
| 173 | struct fs_sink_ctf_field_class_bool *fc, const bt_field *field) |
| 174 | { |
| 175 | /* |
| 176 | * CTF 1.8 has no boolean field class type, so this component |
| 177 | * translates this boolean field to an 8-bit unsigned integer |
| 178 | * field which has the value 0 (false) or 1 (true). |
| 179 | */ |
| 180 | return bt_ctfser_write_unsigned_int(&stream->ctfser, bt_field_bool_get_value(field) ? 1 : 0, |
| 181 | fc->base.base.alignment, fc->base.size, BYTE_ORDER); |
| 182 | } |
| 183 | |
| 184 | static inline int write_bit_array_field(struct fs_sink_stream *stream, |
| 185 | struct fs_sink_ctf_field_class_bit_array *fc, |
| 186 | const bt_field *field) |
| 187 | { |
| 188 | /* |
| 189 | * CTF 1.8 has no bit array field class type, so this component |
| 190 | * translates this bit array field to an unsigned integer field. |
| 191 | */ |
| 192 | return bt_ctfser_write_unsigned_int(&stream->ctfser, |
| 193 | bt_field_bit_array_get_value_as_integer(field), |
| 194 | fc->base.alignment, fc->size, BYTE_ORDER); |
| 195 | } |
| 196 | |
| 197 | static inline int write_int_field(struct fs_sink_stream *stream, |
| 198 | struct fs_sink_ctf_field_class_int *fc, const bt_field *field) |
| 199 | { |
| 200 | int ret; |
| 201 | |
| 202 | if (fc->is_signed) { |
| 203 | ret = bt_ctfser_write_signed_int(&stream->ctfser, bt_field_integer_signed_get_value(field), |
| 204 | fc->base.base.alignment, fc->base.size, BYTE_ORDER); |
| 205 | } else { |
| 206 | ret = bt_ctfser_write_unsigned_int(&stream->ctfser, |
| 207 | bt_field_integer_unsigned_get_value(field), |
| 208 | fc->base.base.alignment, fc->base.size, BYTE_ORDER); |
| 209 | } |
| 210 | |
| 211 | return ret; |
| 212 | } |
| 213 | |
| 214 | static inline int write_float_field(struct fs_sink_stream *stream, |
| 215 | struct fs_sink_ctf_field_class_float *fc, const bt_field *field) |
| 216 | { |
| 217 | int ret; |
| 218 | double val; |
| 219 | |
| 220 | if (fc->base.size == 32) { |
| 221 | val = (double) bt_field_real_single_precision_get_value(field); |
| 222 | ret = bt_ctfser_write_float32(&stream->ctfser, val, fc->base.base.alignment, BYTE_ORDER); |
| 223 | } else { |
| 224 | val = bt_field_real_double_precision_get_value(field); |
| 225 | ret = bt_ctfser_write_float64(&stream->ctfser, val, fc->base.base.alignment, BYTE_ORDER); |
| 226 | } |
| 227 | |
| 228 | return ret; |
| 229 | } |
| 230 | |
| 231 | static inline int write_string_field(struct fs_sink_stream *stream, const bt_field *field) |
| 232 | { |
| 233 | return bt_ctfser_write_string(&stream->ctfser, bt_field_string_get_value(field)); |
| 234 | } |
| 235 | |
| 236 | static inline int write_array_base_field_elements(struct fs_sink_stream *stream, |
| 237 | struct fs_sink_ctf_field_class_array_base *fc, |
| 238 | const bt_field *field) |
| 239 | { |
| 240 | uint64_t i; |
| 241 | uint64_t len = bt_field_array_get_length(field); |
| 242 | int ret = 0; |
| 243 | |
| 244 | for (i = 0; i < len; i++) { |
| 245 | const bt_field *elem_field = bt_field_array_borrow_element_field_by_index_const(field, i); |
| 246 | ret = write_field(stream, fc->elem_fc, elem_field); |
| 247 | if (G_UNLIKELY(ret)) { |
| 248 | goto end; |
| 249 | } |
| 250 | } |
| 251 | |
| 252 | end: |
| 253 | return ret; |
| 254 | } |
| 255 | |
| 256 | static inline int write_sequence_field(struct fs_sink_stream *stream, |
| 257 | struct fs_sink_ctf_field_class_sequence *fc, |
| 258 | const bt_field *field) |
| 259 | { |
| 260 | int ret; |
| 261 | |
| 262 | if (fc->length_is_before) { |
| 263 | ret = bt_ctfser_write_unsigned_int(&stream->ctfser, bt_field_array_get_length(field), 8, 32, |
| 264 | BYTE_ORDER); |
| 265 | if (G_UNLIKELY(ret)) { |
| 266 | goto end; |
| 267 | } |
| 268 | } |
| 269 | |
| 270 | ret = write_array_base_field_elements(stream, &fc->base, field); |
| 271 | |
| 272 | end: |
| 273 | return ret; |
| 274 | } |
| 275 | |
| 276 | static inline int write_struct_field(struct fs_sink_stream *stream, |
| 277 | struct fs_sink_ctf_field_class_struct *fc, |
| 278 | const bt_field *field, bool align_struct) |
| 279 | { |
| 280 | int ret = 0; |
| 281 | uint64_t i; |
| 282 | |
| 283 | if (G_LIKELY(align_struct)) { |
| 284 | ret = bt_ctfser_align_offset_in_current_packet(&stream->ctfser, fc->base.alignment); |
| 285 | if (G_UNLIKELY(ret)) { |
| 286 | goto end; |
| 287 | } |
| 288 | } |
| 289 | |
| 290 | for (i = 0; i < fc->members->len; i++) { |
| 291 | const bt_field *memb_field = |
| 292 | bt_field_structure_borrow_member_field_by_index_const(field, i); |
| 293 | struct fs_sink_ctf_field_class *member_fc = |
| 294 | fs_sink_ctf_field_class_struct_borrow_member_by_index(fc, i)->fc; |
| 295 | |
| 296 | ret = write_field(stream, member_fc, memb_field); |
| 297 | if (G_UNLIKELY(ret)) { |
| 298 | goto end; |
| 299 | } |
| 300 | } |
| 301 | |
| 302 | end: |
| 303 | return ret; |
| 304 | } |
| 305 | |
| 306 | static inline int write_option_field(struct fs_sink_stream *stream, |
| 307 | struct fs_sink_ctf_field_class_option *fc, |
| 308 | const bt_field *field) |
| 309 | { |
| 310 | int ret; |
| 311 | const bt_field *content_field = bt_field_option_borrow_field_const(field); |
| 312 | |
| 313 | ret = bt_ctfser_write_unsigned_int(&stream->ctfser, content_field ? 1 : 0, 8, 8, BYTE_ORDER); |
| 314 | if (G_UNLIKELY(ret)) { |
| 315 | goto end; |
| 316 | } |
| 317 | |
| 318 | /* |
| 319 | * CTF 1.8 has no option field class type, so this component |
| 320 | * translates the option field class to a variant field class |
| 321 | * where the options are: |
| 322 | * |
| 323 | * * An empty structure field class (field occupies 0 bits). |
| 324 | * * The optional field class itself. |
| 325 | * |
| 326 | * If `content_field` is `NULL`, do not write anything (empty |
| 327 | * structure). |
| 328 | */ |
| 329 | if (content_field) { |
| 330 | ret = write_field(stream, fc->content_fc, content_field); |
| 331 | } |
| 332 | |
| 333 | end: |
| 334 | return ret; |
| 335 | } |
| 336 | |
| 337 | static inline int write_variant_field(struct fs_sink_stream *stream, |
| 338 | struct fs_sink_ctf_field_class_variant *fc, |
| 339 | const bt_field *field) |
| 340 | { |
| 341 | uint64_t opt_index = bt_field_variant_get_selected_option_index(field); |
| 342 | int ret; |
| 343 | |
| 344 | if (fc->tag_is_before) { |
| 345 | ret = bt_ctfser_write_unsigned_int(&stream->ctfser, opt_index, 8, 16, BYTE_ORDER); |
| 346 | if (G_UNLIKELY(ret)) { |
| 347 | goto end; |
| 348 | } |
| 349 | } |
| 350 | |
| 351 | ret = write_field(stream, |
| 352 | fs_sink_ctf_field_class_variant_borrow_option_by_index(fc, opt_index)->fc, |
| 353 | bt_field_variant_borrow_selected_option_field_const(field)); |
| 354 | |
| 355 | end: |
| 356 | return ret; |
| 357 | } |
| 358 | |
| 359 | static int write_field(struct fs_sink_stream *stream, struct fs_sink_ctf_field_class *fc, |
| 360 | const bt_field *field) |
| 361 | { |
| 362 | int ret; |
| 363 | |
| 364 | switch (fc->type) { |
| 365 | case FS_SINK_CTF_FIELD_CLASS_TYPE_BOOL: |
| 366 | ret = write_bool_field(stream, fs_sink_ctf_field_class_as_bool(fc), field); |
| 367 | break; |
| 368 | case FS_SINK_CTF_FIELD_CLASS_TYPE_BIT_ARRAY: |
| 369 | ret = write_bit_array_field(stream, fs_sink_ctf_field_class_as_bit_array(fc), field); |
| 370 | break; |
| 371 | case FS_SINK_CTF_FIELD_CLASS_TYPE_INT: |
| 372 | ret = write_int_field(stream, fs_sink_ctf_field_class_as_int(fc), field); |
| 373 | break; |
| 374 | case FS_SINK_CTF_FIELD_CLASS_TYPE_FLOAT: |
| 375 | ret = write_float_field(stream, fs_sink_ctf_field_class_as_float(fc), field); |
| 376 | break; |
| 377 | case FS_SINK_CTF_FIELD_CLASS_TYPE_STRING: |
| 378 | ret = write_string_field(stream, field); |
| 379 | break; |
| 380 | case FS_SINK_CTF_FIELD_CLASS_TYPE_STRUCT: |
| 381 | ret = write_struct_field(stream, fs_sink_ctf_field_class_as_struct(fc), field, true); |
| 382 | break; |
| 383 | case FS_SINK_CTF_FIELD_CLASS_TYPE_ARRAY: |
| 384 | ret = write_array_base_field_elements(stream, fs_sink_ctf_field_class_as_array_base(fc), |
| 385 | field); |
| 386 | break; |
| 387 | case FS_SINK_CTF_FIELD_CLASS_TYPE_SEQUENCE: |
| 388 | ret = write_sequence_field(stream, fs_sink_ctf_field_class_as_sequence(fc), field); |
| 389 | break; |
| 390 | case FS_SINK_CTF_FIELD_CLASS_TYPE_OPTION: |
| 391 | ret = write_option_field(stream, fs_sink_ctf_field_class_as_option(fc), field); |
| 392 | break; |
| 393 | case FS_SINK_CTF_FIELD_CLASS_TYPE_VARIANT: |
| 394 | ret = write_variant_field(stream, fs_sink_ctf_field_class_as_variant(fc), field); |
| 395 | break; |
| 396 | default: |
| 397 | bt_common_abort(); |
| 398 | } |
| 399 | |
| 400 | return ret; |
| 401 | } |
| 402 | |
| 403 | static inline int write_event_header(struct fs_sink_stream *stream, const bt_clock_snapshot *cs, |
| 404 | struct fs_sink_ctf_event_class *ec) |
| 405 | { |
| 406 | int ret; |
| 407 | |
| 408 | /* Event class ID */ |
| 409 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 410 | &stream->ctfser, bt_event_class_get_id(ec->ir_ec), 8, 64, BYTE_ORDER); |
| 411 | if (G_UNLIKELY(ret)) { |
| 412 | goto end; |
| 413 | } |
| 414 | |
| 415 | /* Time */ |
| 416 | if (stream->sc->default_clock_class) { |
| 417 | BT_ASSERT_DBG(cs); |
| 418 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 419 | &stream->ctfser, bt_clock_snapshot_get_value(cs), 8, 64, BYTE_ORDER); |
| 420 | if (G_UNLIKELY(ret)) { |
| 421 | goto end; |
| 422 | } |
| 423 | } |
| 424 | |
| 425 | end: |
| 426 | return ret; |
| 427 | } |
| 428 | |
| 429 | int fs_sink_stream_write_event(struct fs_sink_stream *stream, const bt_clock_snapshot *cs, |
| 430 | const bt_event *event, struct fs_sink_ctf_event_class *ec) |
| 431 | { |
| 432 | int ret; |
| 433 | const bt_field *field; |
| 434 | |
| 435 | /* Header */ |
| 436 | ret = write_event_header(stream, cs, ec); |
| 437 | if (G_UNLIKELY(ret)) { |
| 438 | goto end; |
| 439 | } |
| 440 | |
| 441 | /* Common context */ |
| 442 | if (stream->sc->event_common_context_fc) { |
| 443 | field = bt_event_borrow_common_context_field_const(event); |
| 444 | BT_ASSERT_DBG(field); |
| 445 | ret = write_struct_field( |
| 446 | stream, fs_sink_ctf_field_class_as_struct(stream->sc->event_common_context_fc), field, |
| 447 | true); |
| 448 | if (G_UNLIKELY(ret)) { |
| 449 | goto end; |
| 450 | } |
| 451 | } |
| 452 | |
| 453 | /* Specific context */ |
| 454 | if (ec->spec_context_fc) { |
| 455 | field = bt_event_borrow_specific_context_field_const(event); |
| 456 | BT_ASSERT_DBG(field); |
| 457 | ret = write_struct_field(stream, fs_sink_ctf_field_class_as_struct(ec->spec_context_fc), |
| 458 | field, true); |
| 459 | if (G_UNLIKELY(ret)) { |
| 460 | goto end; |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | /* Specific context */ |
| 465 | if (ec->payload_fc) { |
| 466 | field = bt_event_borrow_payload_field_const(event); |
| 467 | BT_ASSERT_DBG(field); |
| 468 | ret = write_struct_field(stream, fs_sink_ctf_field_class_as_struct(ec->payload_fc), field, |
| 469 | true); |
| 470 | if (G_UNLIKELY(ret)) { |
| 471 | goto end; |
| 472 | } |
| 473 | } |
| 474 | |
| 475 | end: |
| 476 | return ret; |
| 477 | } |
| 478 | |
| 479 | static int write_packet_context(struct fs_sink_stream *stream) |
| 480 | { |
| 481 | int ret; |
| 482 | |
| 483 | /* Packet total size */ |
| 484 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 485 | &stream->ctfser, stream->packet_state.total_size, 8, 64, BYTE_ORDER); |
| 486 | if (ret) { |
| 487 | goto end; |
| 488 | } |
| 489 | |
| 490 | /* Packet content size */ |
| 491 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 492 | &stream->ctfser, stream->packet_state.content_size, 8, 64, BYTE_ORDER); |
| 493 | if (ret) { |
| 494 | goto end; |
| 495 | } |
| 496 | |
| 497 | if (stream->sc->packets_have_ts_begin) { |
| 498 | /* Beginning time */ |
| 499 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 500 | &stream->ctfser, stream->packet_state.beginning_cs, 8, 64, BYTE_ORDER); |
| 501 | if (ret) { |
| 502 | goto end; |
| 503 | } |
| 504 | } |
| 505 | |
| 506 | if (stream->sc->packets_have_ts_end) { |
| 507 | /* End time */ |
| 508 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 509 | &stream->ctfser, stream->packet_state.end_cs, 8, 64, BYTE_ORDER); |
| 510 | if (ret) { |
| 511 | goto end; |
| 512 | } |
| 513 | } |
| 514 | |
| 515 | if (stream->sc->has_discarded_events) { |
| 516 | /* Discarded event counter */ |
| 517 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 518 | &stream->ctfser, stream->packet_state.discarded_events_counter, 8, 64, BYTE_ORDER); |
| 519 | if (ret) { |
| 520 | goto end; |
| 521 | } |
| 522 | } |
| 523 | |
| 524 | /* Sequence number */ |
| 525 | ret = bt_ctfser_write_byte_aligned_unsigned_int(&stream->ctfser, stream->packet_state.seq_num, |
| 526 | 8, 64, BYTE_ORDER); |
| 527 | if (ret) { |
| 528 | goto end; |
| 529 | } |
| 530 | |
| 531 | /* Other members */ |
| 532 | if (stream->sc->packet_context_fc) { |
| 533 | const bt_field *packet_context_field; |
| 534 | |
| 535 | BT_ASSERT(stream->packet_state.packet); |
| 536 | packet_context_field = bt_packet_borrow_context_field_const(stream->packet_state.packet); |
| 537 | BT_ASSERT(packet_context_field); |
| 538 | ret = write_struct_field(stream, |
| 539 | fs_sink_ctf_field_class_as_struct(stream->sc->packet_context_fc), |
| 540 | packet_context_field, false); |
| 541 | if (ret) { |
| 542 | goto end; |
| 543 | } |
| 544 | } |
| 545 | |
| 546 | end: |
| 547 | return ret; |
| 548 | } |
| 549 | |
| 550 | int fs_sink_stream_open_packet(struct fs_sink_stream *stream, const bt_clock_snapshot *cs, |
| 551 | const bt_packet *packet) |
| 552 | { |
| 553 | int ret; |
| 554 | uint64_t i; |
| 555 | |
| 556 | BT_ASSERT(!stream->packet_state.is_open); |
| 557 | bt_packet_put_ref(stream->packet_state.packet); |
| 558 | stream->packet_state.packet = packet; |
| 559 | bt_packet_get_ref(stream->packet_state.packet); |
| 560 | if (cs) { |
| 561 | stream->packet_state.beginning_cs = bt_clock_snapshot_get_value(cs); |
| 562 | } |
| 563 | |
| 564 | /* Open packet */ |
| 565 | ret = bt_ctfser_open_packet(&stream->ctfser); |
| 566 | if (ret) { |
| 567 | /* bt_ctfser_open_packet() logs errors */ |
| 568 | goto end; |
| 569 | } |
| 570 | |
| 571 | /* Packet header: magic */ |
| 572 | ret = bt_ctfser_write_byte_aligned_unsigned_int(&stream->ctfser, UINT64_C(0xc1fc1fc1), 8, 32, |
| 573 | BYTE_ORDER); |
| 574 | if (ret) { |
| 575 | BT_COMP_LOGE("Error writing packet header magic: stream-file-name=%s", |
| 576 | stream->file_name->str); |
| 577 | goto end; |
| 578 | } |
| 579 | |
| 580 | /* Packet header: UUID */ |
| 581 | for (i = 0; i < BT_UUID_LEN; i++) { |
| 582 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 583 | &stream->ctfser, (uint64_t) stream->sc->trace->uuid[i], 8, 8, BYTE_ORDER); |
| 584 | if (ret) { |
| 585 | BT_COMP_LOGE("Error writing packet header UUID: stream-file-name=%s", |
| 586 | stream->file_name->str); |
| 587 | goto end; |
| 588 | } |
| 589 | } |
| 590 | |
| 591 | /* Packet header: stream class ID */ |
| 592 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 593 | &stream->ctfser, bt_stream_class_get_id(stream->sc->ir_sc), 8, 64, BYTE_ORDER); |
| 594 | if (ret) { |
| 595 | BT_COMP_LOGE("Error writing packet header stream class id: " |
| 596 | "stream-file-name=%s, stream-class-id=%" PRIu64, |
| 597 | stream->file_name->str, bt_stream_class_get_id(stream->sc->ir_sc)); |
| 598 | goto end; |
| 599 | } |
| 600 | |
| 601 | /* Packet header: stream ID */ |
| 602 | ret = bt_ctfser_write_byte_aligned_unsigned_int( |
| 603 | &stream->ctfser, bt_stream_get_id(stream->ir_stream), 8, 64, BYTE_ORDER); |
| 604 | if (ret) { |
| 605 | BT_COMP_LOGE("Error writing packet header stream id: " |
| 606 | "stream-file-name=%s, stream-id=%" PRIu64, |
| 607 | stream->file_name->str, bt_stream_get_id(stream->ir_stream)); |
| 608 | goto end; |
| 609 | } |
| 610 | |
| 611 | /* Save packet context's offset to rewrite it later */ |
| 612 | stream->packet_state.context_offset_bits = |
| 613 | bt_ctfser_get_offset_in_current_packet_bits(&stream->ctfser); |
| 614 | |
| 615 | /* Write packet context just to advance to content (first event) */ |
| 616 | ret = write_packet_context(stream); |
| 617 | if (ret) { |
| 618 | goto end; |
| 619 | } |
| 620 | |
| 621 | stream->packet_state.is_open = true; |
| 622 | |
| 623 | end: |
| 624 | return ret; |
| 625 | } |
| 626 | |
| 627 | int fs_sink_stream_close_packet(struct fs_sink_stream *stream, const bt_clock_snapshot *cs) |
| 628 | { |
| 629 | int ret; |
| 630 | |
| 631 | BT_ASSERT(stream->packet_state.is_open); |
| 632 | |
| 633 | if (cs) { |
| 634 | stream->packet_state.end_cs = bt_clock_snapshot_get_value(cs); |
| 635 | } |
| 636 | |
| 637 | stream->packet_state.content_size = |
| 638 | bt_ctfser_get_offset_in_current_packet_bits(&stream->ctfser); |
| 639 | stream->packet_state.total_size = (stream->packet_state.content_size + 7) & ~UINT64_C(7); |
| 640 | |
| 641 | /* Rewrite packet context */ |
| 642 | bt_ctfser_set_offset_in_current_packet_bits(&stream->ctfser, |
| 643 | stream->packet_state.context_offset_bits); |
| 644 | ret = write_packet_context(stream); |
| 645 | if (ret) { |
| 646 | goto end; |
| 647 | } |
| 648 | |
| 649 | /* Close packet */ |
| 650 | bt_ctfser_close_current_packet(&stream->ctfser, stream->packet_state.total_size / 8); |
| 651 | |
| 652 | /* Partially copy current packet state to previous packet state */ |
| 653 | stream->prev_packet_state.end_cs = stream->packet_state.end_cs; |
| 654 | stream->prev_packet_state.discarded_events_counter = |
| 655 | stream->packet_state.discarded_events_counter; |
| 656 | stream->prev_packet_state.seq_num = stream->packet_state.seq_num; |
| 657 | |
| 658 | /* Reset current packet state */ |
| 659 | stream->packet_state.beginning_cs = UINT64_C(-1); |
| 660 | stream->packet_state.end_cs = UINT64_C(-1); |
| 661 | stream->packet_state.content_size = 0; |
| 662 | stream->packet_state.total_size = 0; |
| 663 | stream->packet_state.seq_num += 1; |
| 664 | stream->packet_state.context_offset_bits = 0; |
| 665 | stream->packet_state.is_open = false; |
| 666 | BT_PACKET_PUT_REF_AND_RESET(stream->packet_state.packet); |
| 667 | |
| 668 | end: |
| 669 | return ret; |
| 670 | } |