lib/lib-logging.c

   1 /*
   2  * Copyright 2018 Philippe Proulx <pproulx@efficios.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a copy
   5  * of this software and associated documentation files (the "Software"), to deal
   6  * in the Software without restriction, including without limitation the rights
   7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   8  * copies of the Software, and to permit persons to whom the Software is
   9  * furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  19  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20  * SOFTWARE.
  21  */
  22
  23 #define BT_LOG_TAG "LIB-LOGGING"
  24
  25 #include <stdarg.h>
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <string.h>
  29 #include <inttypes.h>
  30 #include <stdint.h>
  31 #include <wchar.h>
  32 #include <glib.h>
  33 #include <babeltrace/lib-logging-internal.h>
  34 #include <babeltrace/assert-pre-internal.h>
  35 #include <babeltrace/common-internal.h>
  36 #include <babeltrace/lib-logging-internal.h>
  37 #include <babeltrace/value-internal.h>
  38 #include <babeltrace/value-internal.h>
  39 #include <babeltrace/object-pool-internal.h>
  40 #include <babeltrace/trace-ir/field-class-internal.h>
  41 #include <babeltrace/trace-ir/field-internal.h>
  42 #include <babeltrace/trace-ir/event-class-internal.h>
  43 #include <babeltrace/trace-ir/event-const.h>
  44 #include <babeltrace/trace-ir/event-internal.h>
  45 #include <babeltrace/trace-ir/packet-const.h>
  46 #include <babeltrace/trace-ir/packet-internal.h>
  47 #include <babeltrace/trace-ir/stream-class-internal.h>
  48 #include <babeltrace/trace-ir/stream-internal.h>
  49 #include <babeltrace/trace-ir/stream-const.h>
  50 #include <babeltrace/trace-ir/trace-internal.h>
  51 #include <babeltrace/trace-ir/trace-class-internal.h>
  52 #include <babeltrace/trace-ir/clock-class-internal.h>
  53 #include <babeltrace/trace-ir/clock-snapshot-internal.h>
  54 #include <babeltrace/trace-ir/field-path-internal.h>
  55 #include <babeltrace/trace-ir/utils-internal.h>
  56 #include <babeltrace/graph/component-class-internal.h>
  57 #include <babeltrace/graph/component-class-sink-colander-internal.h>
  58 #include <babeltrace/graph/component-filter-internal.h>
  59 #include <babeltrace/graph/component-internal.h>
  60 #include <babeltrace/graph/component-sink-internal.h>
  61 #include <babeltrace/graph/component-source-internal.h>
  62 #include <babeltrace/graph/connection-internal.h>
  63 #include <babeltrace/graph/graph-internal.h>
  64 #include <babeltrace/graph/message-event-internal.h>
  65 #include <babeltrace/graph/message-inactivity-internal.h>
  66 #include <babeltrace/graph/message-internal.h>
  67 #include <babeltrace/graph/message-iterator-internal.h>
  68 #include <babeltrace/graph/message-packet-internal.h>
  69 #include <babeltrace/graph/message-stream-internal.h>
  70 #include <babeltrace/graph/message-stream-activity-internal.h>
  71 #include <babeltrace/graph/message-discarded-items-internal.h>
  72 #include <babeltrace/graph/port-internal.h>
  73 #include <babeltrace/plugin/plugin-internal.h>
  74 #include <babeltrace/plugin/plugin-so-internal.h>
  75
  76 #define LIB_LOGGING_BUF_SIZE    (4096 * 4)
  77
  78 static char __thread lib_logging_buf[LIB_LOGGING_BUF_SIZE];
  79
  80 #define BUF_APPEND(_fmt, ...)                                           \
  81         do {                                                            \
  82                 int _count;                                             \
  83                 size_t _size = LIB_LOGGING_BUF_SIZE -                   \
  84                                 (size_t) (*buf_ch - lib_logging_buf);   \
  85                 _count = snprintf(*buf_ch, _size, (_fmt), __VA_ARGS__); \
  86                 BT_ASSERT(_count >= 0);                                 \
  87                 *buf_ch += MIN(_count, _size);                          \
  88                 if (*buf_ch >= lib_logging_buf + LIB_LOGGING_BUF_SIZE - 1) { \
  89                         return;                                         \
  90                 }                                                       \
  91         } while (0)
  92
  93 #define BUF_APPEND_UUID(_uuid)                                          \
  94         do {                                                            \
  95                 BUF_APPEND(", %suuid=", prefix);                        \
  96                 format_uuid(buf_ch, (_uuid));                           \
  97         } while (0)
  98
  99 #define PRFIELD(_expr)  prefix, (_expr)
 100
 101 #define PRFIELD_GSTRING(_expr)  PRFIELD((_expr) ? (_expr)->str : NULL)
 102
 103 #define SET_TMP_PREFIX(_prefix2)                                        \
 104         do {                                                            \
 105                 strcpy(tmp_prefix, prefix);                             \
 106                 strcat(tmp_prefix, (_prefix2));                         \
 107         } while (0)
 108
 109 static inline void format_component(char **buf_ch, bool extended,
 110                 const char *prefix, const struct bt_component *component);
 111
 112 static inline void format_port(char **buf_ch, bool extended,
 113                 const char *prefix, const struct bt_port *port);
 114
 115 static inline void format_connection(char **buf_ch, bool extended,
 116                 const char *prefix, const struct bt_connection *connection);
 117
 118 static inline void format_clock_snapshot(char **buf_ch, bool extended,
 119                 const char *prefix, const struct bt_clock_snapshot *clock_snapshot);
 120
 121 static inline void format_field_path(char **buf_ch, bool extended,
 122                 const char *prefix, const struct bt_field_path *field_path);
 123
 124 static inline void format_object(char **buf_ch, bool extended,
 125                 const char *prefix, const struct bt_object *obj)
 126 {
 127         BUF_APPEND(", %sref-count=%llu", prefix, obj->ref_count);
 128 }
 129
 130 static inline void format_uuid(char **buf_ch, bt_uuid uuid)
 131 {
 132         BUF_APPEND("\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\"",
 133                 (unsigned int) uuid[0],
 134                 (unsigned int) uuid[1],
 135                 (unsigned int) uuid[2],
 136                 (unsigned int) uuid[3],
 137                 (unsigned int) uuid[4],
 138                 (unsigned int) uuid[5],
 139                 (unsigned int) uuid[6],
 140                 (unsigned int) uuid[7],
 141                 (unsigned int) uuid[8],
 142                 (unsigned int) uuid[9],
 143                 (unsigned int) uuid[10],
 144                 (unsigned int) uuid[11],
 145                 (unsigned int) uuid[12],
 146                 (unsigned int) uuid[13],
 147                 (unsigned int) uuid[14],
 148                 (unsigned int) uuid[15]);
 149 }
 150
 151 static inline void format_object_pool(char **buf_ch, bool extended,
 152                 const char *prefix, const struct bt_object_pool *pool)
 153 {
 154         BUF_APPEND(", %ssize=%zu", PRFIELD(pool->size));
 155
 156         if (pool->objects) {
 157                 BUF_APPEND(", %scap=%u", PRFIELD(pool->objects->len));
 158         }
 159 }
 160
 161 static inline void format_integer_field_class(char **buf_ch,
 162                 bool extended, const char *prefix,
 163                 const struct bt_field_class *field_class)
 164 {
 165         const struct bt_field_class_integer *int_fc =
 166                 (const void *) field_class;
 167
 168         BUF_APPEND(", %srange-size=%" PRIu64 ", %sbase=%s",
 169                 PRFIELD(int_fc->range),
 170                 PRFIELD(bt_common_field_class_integer_preferred_display_base_string(int_fc->base)));
 171 }
 172
 173 static inline void format_array_field_class(char **buf_ch,
 174                 bool extended, const char *prefix,
 175                 const struct bt_field_class *field_class)
 176 {
 177         const struct bt_field_class_array *array_fc =
 178                 (const void *) field_class;
 179
 180         BUF_APPEND(", %selement-fc-addr=%p, %selement-fc-type=%s",
 181                 PRFIELD(array_fc->element_fc),
 182                 PRFIELD(bt_common_field_class_type_string(array_fc->element_fc->type)));
 183 }
 184
 185 static inline void format_field_class(char **buf_ch, bool extended,
 186                 const char *prefix, const struct bt_field_class *field_class)
 187 {
 188         char tmp_prefix[64];
 189
 190         BUF_APPEND(", %stype=%s",
 191                 PRFIELD(bt_common_field_class_type_string(field_class->type)));
 192
 193         if (extended) {
 194                 BUF_APPEND(", %sis-frozen=%d", PRFIELD(field_class->frozen));
 195                 BUF_APPEND(", %sis-part-of-trace-class=%d",
 196                         PRFIELD(field_class->part_of_trace_class));
 197         } else {
 198                 return;
 199         }
 200
 201         switch (field_class->type) {
 202         case BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER:
 203         case BT_FIELD_CLASS_TYPE_SIGNED_INTEGER:
 204         {
 205                 format_integer_field_class(buf_ch, extended, prefix, field_class);
 206                 break;
 207         }
 208         case BT_FIELD_CLASS_TYPE_REAL:
 209         {
 210                 const struct bt_field_class_real *real_fc = (void *) field_class;
 211
 212                 BUF_APPEND(", %sis-single-precision=%d",
 213                         PRFIELD(real_fc->is_single_precision));
 214                 break;
 215         }
 216         case BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION:
 217         case BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION:
 218         {
 219                 const struct bt_field_class_enumeration *enum_fc =
 220                         (const void *) field_class;
 221
 222                 format_integer_field_class(buf_ch, extended, prefix, field_class);
 223                 BUF_APPEND(", %smapping-count=%u",
 224                         PRFIELD(enum_fc->mappings->len));
 225                 break;
 226         }
 227         case BT_FIELD_CLASS_TYPE_STRUCTURE:
 228         {
 229                 const struct bt_field_class_structure *struct_fc =
 230                         (const void *) field_class;
 231
 232                 if (struct_fc->common.named_fcs) {
 233                         BUF_APPEND(", %smember-count=%u",
 234                                 PRFIELD(struct_fc->common.named_fcs->len));
 235                 }
 236
 237                 break;
 238         }
 239         case BT_FIELD_CLASS_TYPE_STATIC_ARRAY:
 240         {
 241                 const struct bt_field_class_static_array *array_fc =
 242                         (const void *) field_class;
 243
 244                 format_array_field_class(buf_ch, extended, prefix, field_class);
 245                 BUF_APPEND(", %slength=%" PRIu64, PRFIELD(array_fc->length));
 246                 break;
 247         }
 248         case BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY:
 249         {
 250                 const struct bt_field_class_dynamic_array *array_fc =
 251                         (const void *) field_class;
 252
 253                 format_array_field_class(buf_ch, extended, prefix, field_class);
 254
 255                 if (array_fc->length_fc) {
 256                         SET_TMP_PREFIX("length-fc-");
 257                         format_field_class(buf_ch, extended, tmp_prefix,
 258                                 array_fc->length_fc);
 259                 }
 260
 261                 if (array_fc->length_field_path) {
 262                         SET_TMP_PREFIX("length-field-path-");
 263                         format_field_path(buf_ch, extended, tmp_prefix,
 264                                 array_fc->length_field_path);
 265                 }
 266
 267                 break;
 268         }
 269         case BT_FIELD_CLASS_TYPE_VARIANT:
 270         {
 271                 const struct bt_field_class_variant *var_fc =
 272                         (const void *) field_class;
 273
 274                 if (var_fc->common.named_fcs) {
 275                         BUF_APPEND(", %soption-count=%u",
 276                                 PRFIELD(var_fc->common.named_fcs->len));
 277                 }
 278
 279                 if (var_fc->selector_fc) {
 280                         SET_TMP_PREFIX("selector-fc-");
 281                         format_field_class(buf_ch, extended, tmp_prefix,
 282                                 var_fc->selector_fc);
 283                 }
 284
 285                 if (var_fc->selector_field_path) {
 286                         SET_TMP_PREFIX("selector-field-path-");
 287                         format_field_path(buf_ch, extended, tmp_prefix,
 288                                 var_fc->selector_field_path);
 289                 }
 290
 291                 break;
 292         }
 293         default:
 294                 break;
 295         }
 296 }
 297
 298 static inline void format_field_integer_extended(char **buf_ch,
 299                 const char *prefix, const struct bt_field *field)
 300 {
 301         const struct bt_field_integer *integer = (void *) field;
 302         const struct bt_field_class_integer *field_class =
 303                 (void *) field->class;
 304         const char *fmt = NULL;
 305
 306         BT_ASSERT(field_class);
 307
 308         if (field_class->base == BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_OCTAL) {
 309                 fmt = ", %svalue=%" PRIo64;
 310         } else if (field_class->base == BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_HEXADECIMAL) {
 311                 fmt = ", %svalue=%" PRIx64;
 312         }
 313
 314         if (field_class->common.type == BT_FIELD_CLASS_TYPE_SIGNED_INTEGER ||
 315                         field_class->common.type == BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION) {
 316                 if (!fmt) {
 317                         fmt = ", %svalue=%" PRId64;
 318                 }
 319
 320                 BUF_APPEND(fmt, PRFIELD(integer->value.i));
 321         } else {
 322                 if (!fmt) {
 323                         fmt = ", %svalue=%" PRIu64;
 324                 }
 325
 326                 BUF_APPEND(fmt, PRFIELD(integer->value.u));
 327         }
 328 }
 329
 330 static inline void format_field(char **buf_ch, bool extended,
 331                 const char *prefix, const struct bt_field *field)
 332 {
 333         BUF_APPEND(", %sis-set=%d", PRFIELD(field->is_set));
 334
 335         if (extended) {
 336                 BUF_APPEND(", %sis-frozen=%d", PRFIELD(field->frozen));
 337         }
 338
 339         BUF_APPEND(", %sclass-addr=%p", PRFIELD(field->class));
 340
 341         if (!field->class) {
 342                 return;
 343         }
 344
 345         BUF_APPEND(", %sclass-type=%s",
 346                 PRFIELD(bt_common_field_class_type_string(field->class->type)));
 347
 348         if (!extended || !field->is_set) {
 349                 return;
 350         }
 351
 352         switch (field->class->type) {
 353         case BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER:
 354         case BT_FIELD_CLASS_TYPE_SIGNED_INTEGER:
 355         case BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION:
 356         case BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION:
 357         {
 358                 format_field_integer_extended(buf_ch, prefix, field);
 359                 break;
 360         }
 361         case BT_FIELD_CLASS_TYPE_REAL:
 362         {
 363                 const struct bt_field_real *real_field = (const void *) field;
 364
 365                 BUF_APPEND(", %svalue=%f", PRFIELD(real_field->value));
 366                 break;
 367         }
 368         case BT_FIELD_CLASS_TYPE_STRING:
 369         {
 370                 const struct bt_field_string *str = (const void *) field;
 371
 372                 if (str->buf) {
 373                         BT_ASSERT(str->buf->data);
 374                         BUF_APPEND(", %spartial-value=\"%.32s\"",
 375                                 PRFIELD(str->buf->data));
 376                 }
 377
 378                 break;
 379         }
 380         case BT_FIELD_CLASS_TYPE_STATIC_ARRAY:
 381         case BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY:
 382         {
 383                 const struct bt_field_array *array_field = (const void *) field;
 384
 385                 BUF_APPEND(", %slength=%" PRIu64, PRFIELD(array_field->length));
 386
 387                 if (array_field->fields) {
 388                         BUF_APPEND(", %sallocated-length=%u",
 389                                 PRFIELD(array_field->fields->len));
 390                 }
 391
 392                 break;
 393         }
 394         case BT_FIELD_CLASS_TYPE_VARIANT:
 395         {
 396                 const struct bt_field_variant *var_field = (const void *) field;
 397
 398                 BUF_APPEND(", %sselected-field-index=%" PRIu64,
 399                         PRFIELD(var_field->selected_index));
 400                 break;
 401         }
 402         default:
 403                 break;
 404         }
 405 }
 406
 407 static inline void format_field_path(char **buf_ch, bool extended,
 408                 const char *prefix, const struct bt_field_path *field_path)
 409 {
 410         uint64_t i;
 411
 412         if (field_path->indexes) {
 413                 BT_ASSERT(field_path->indexes);
 414                 BUF_APPEND(", %sindex-count=%u",
 415                         PRFIELD(field_path->indexes->len));
 416         }
 417
 418         if (!extended || !field_path->indexes) {
 419                 return;
 420         }
 421
 422         BUF_APPEND(", %spath=[%s",
 423                 PRFIELD(bt_common_scope_string(field_path->root)));
 424
 425         for (i = 0; i < field_path->indexes->len; i++) {
 426                 uint64_t index = bt_field_path_get_index_by_index_inline(
 427                         field_path, i);
 428
 429                 BUF_APPEND(", %" PRIu64, index);
 430         }
 431
 432         BUF_APPEND("%s", "]");
 433 }
 434
 435 static inline void format_trace_class(char **buf_ch, bool extended,
 436                 const char *prefix, const struct bt_trace_class *trace_class)
 437 {
 438         if (trace_class->name.value) {
 439                 BUF_APPEND(", %sname=\"%s\"",
 440                         PRFIELD(trace_class->name.value));
 441         }
 442
 443         if (!extended) {
 444                 return;
 445         }
 446
 447         BUF_APPEND(", %sis-frozen=%d", PRFIELD(trace_class->frozen));
 448
 449         if (trace_class->uuid.value) {
 450                 BUF_APPEND_UUID(trace_class->uuid.value);
 451         }
 452
 453         if (trace_class->stream_classes) {
 454                 BUF_APPEND(", %sstream-class-count=%u",
 455                         PRFIELD(trace_class->stream_classes->len));
 456         }
 457
 458         BUF_APPEND(", %sassigns-auto-sc-id=%d",
 459                 PRFIELD(trace_class->assigns_automatic_stream_class_id));
 460 }
 461
 462 static inline void format_trace(char **buf_ch, bool extended,
 463                 const char *prefix, const struct bt_trace *trace)
 464 {
 465         char tmp_prefix[64];
 466
 467         if (trace->name.value) {
 468                 BUF_APPEND(", %sname=\"%s\"", PRFIELD(trace->name.value));
 469         }
 470
 471         if (!extended) {
 472                 return;
 473         }
 474
 475         BUF_APPEND(", %sis-frozen=%d", PRFIELD(trace->frozen));
 476
 477         if (trace->streams) {
 478                 BUF_APPEND(", %sstream-count=%u",
 479                         PRFIELD(trace->streams->len));
 480         }
 481
 482         BUF_APPEND(", %sis-static=%d", PRFIELD(trace->is_static));
 483
 484         if (!trace->class) {
 485                 return;
 486         }
 487
 488         BUF_APPEND(", %strace-class-addr=%p", PRFIELD(trace->class));
 489         SET_TMP_PREFIX("trace-class-");
 490         format_trace_class(buf_ch, false, tmp_prefix, trace->class);
 491 }
 492
 493 static inline void format_stream_class(char **buf_ch, bool extended,
 494                 const char *prefix,
 495                 const struct bt_stream_class *stream_class)
 496 {
 497         const struct bt_trace_class *trace_class;
 498         char tmp_prefix[64];
 499
 500         BUF_APPEND(", %sid=%" PRIu64, PRFIELD(stream_class->id));
 501
 502         if (stream_class->name.value) {
 503                 BUF_APPEND(", %sname=\"%s\"",
 504                         PRFIELD(stream_class->name.value));
 505         }
 506
 507         if (!extended) {
 508                 return;
 509         }
 510
 511         BUF_APPEND(", %sis-frozen=%d", PRFIELD(stream_class->frozen));
 512
 513         if (stream_class->event_classes) {
 514                 BUF_APPEND(", %sevent-class-count=%u",
 515                         PRFIELD(stream_class->event_classes->len));
 516         }
 517
 518         BUF_APPEND(", %spacket-context-fc-addr=%p, "
 519                 "%sevent-common-context-fc-addr=%p",
 520                 PRFIELD(stream_class->packet_context_fc),
 521                 PRFIELD(stream_class->event_common_context_fc));
 522         trace_class = bt_stream_class_borrow_trace_class_inline(stream_class);
 523         if (!trace_class) {
 524                 return;
 525         }
 526
 527         BUF_APPEND(", %sassigns-auto-ec-id=%d, %sassigns-auto-stream-id=%d",
 528                 PRFIELD(stream_class->assigns_automatic_event_class_id),
 529                 PRFIELD(stream_class->assigns_automatic_stream_id));
 530         BUF_APPEND(", %strace-class-addr=%p", PRFIELD(trace_class));
 531         SET_TMP_PREFIX("trace-class-");
 532         format_trace_class(buf_ch, false, tmp_prefix, trace_class);
 533         SET_TMP_PREFIX("pcf-pool-");
 534         format_object_pool(buf_ch, extended, prefix,
 535                 &stream_class->packet_context_field_pool);
 536 }
 537
 538 static inline void format_event_class(char **buf_ch, bool extended,
 539                 const char *prefix, const struct bt_event_class *event_class)
 540 {
 541         const struct bt_stream_class *stream_class;
 542         const struct bt_trace_class *trace_class;
 543         char tmp_prefix[64];
 544
 545         BUF_APPEND(", %sid=%" PRIu64, PRFIELD(event_class->id));
 546
 547         if (event_class->name.value) {
 548                 BUF_APPEND(", %sname=\"%s\"",
 549                         PRFIELD(event_class->name.value));
 550         }
 551
 552         if (!extended) {
 553                 return;
 554         }
 555
 556         BUF_APPEND(", %sis-frozen=%d", PRFIELD(event_class->frozen));
 557
 558         if (event_class->log_level.base.avail) {
 559                 BUF_APPEND(", %slog-level=%s",
 560                         PRFIELD(bt_common_event_class_log_level_string(
 561                                 (int) event_class->log_level.value)));
 562         }
 563
 564         if (event_class->emf_uri.value) {
 565                 BUF_APPEND(", %semf-uri=\"%s\"",
 566                         PRFIELD(event_class->emf_uri.value));
 567         }
 568
 569         BUF_APPEND(", %sspecific-context-fc-addr=%p, %spayload-fc-addr=%p",
 570                 PRFIELD(event_class->specific_context_fc),
 571                 PRFIELD(event_class->payload_fc));
 572
 573         stream_class = bt_event_class_borrow_stream_class_const(event_class);
 574         if (!stream_class) {
 575                 return;
 576         }
 577
 578         BUF_APPEND(", %sstream-class-addr=%p", PRFIELD(stream_class));
 579         SET_TMP_PREFIX("stream-class-");
 580         format_stream_class(buf_ch, false, tmp_prefix, stream_class);
 581         trace_class = bt_stream_class_borrow_trace_class_inline(stream_class);
 582         if (!trace_class) {
 583                 return;
 584         }
 585
 586         BUF_APPEND(", %strace-class-addr=%p", PRFIELD(trace_class));
 587         SET_TMP_PREFIX("trace-class-");
 588         format_trace_class(buf_ch, false, tmp_prefix, trace_class);
 589         SET_TMP_PREFIX("event-pool-");
 590         format_object_pool(buf_ch, extended, prefix, &event_class->event_pool);
 591 }
 592
 593 static inline void format_stream(char **buf_ch, bool extended,
 594                 const char *prefix, const struct bt_stream *stream)
 595 {
 596         const struct bt_stream_class *stream_class;
 597         const struct bt_trace_class *trace_class = NULL;
 598         const struct bt_trace *trace = NULL;
 599         char tmp_prefix[64];
 600
 601         BUF_APPEND(", %sid=%" PRIu64, PRFIELD(stream->id));
 602
 603         if (stream->name.value) {
 604                 BUF_APPEND(", %sname=\"%s\"", PRFIELD(stream->name.value));
 605         }
 606
 607         if (!extended) {
 608                 return;
 609         }
 610
 611         stream_class = bt_stream_borrow_class_const(stream);
 612         if (stream_class) {
 613                 BUF_APPEND(", %sstream-class-addr=%p", PRFIELD(stream_class));
 614                 SET_TMP_PREFIX("stream-class-");
 615                 format_stream_class(buf_ch, false, tmp_prefix, stream_class);
 616                 trace_class = bt_stream_class_borrow_trace_class_inline(stream_class);
 617         }
 618
 619         if (trace_class) {
 620                 BUF_APPEND(", %strace-class-addr=%p", PRFIELD(trace_class));
 621                 SET_TMP_PREFIX("trace-class-");
 622                 format_trace_class(buf_ch, false, tmp_prefix, trace_class);
 623         }
 624
 625         trace = bt_stream_borrow_trace_inline(stream);
 626         if (trace) {
 627                 BUF_APPEND(", %strace-addr=%p", PRFIELD(trace));
 628                 SET_TMP_PREFIX("trace-");
 629                 format_trace(buf_ch, false, tmp_prefix, trace);
 630         }
 631
 632         SET_TMP_PREFIX("packet-pool-");
 633         format_object_pool(buf_ch, extended, prefix, &stream->packet_pool);
 634 }
 635
 636 static inline void format_packet(char **buf_ch, bool extended,
 637                 const char *prefix, const struct bt_packet *packet)
 638 {
 639         const struct bt_stream *stream;
 640         const struct bt_trace_class *trace_class;
 641         char tmp_prefix[64];
 642
 643         if (!extended) {
 644                 return;
 645         }
 646
 647         BUF_APPEND(", %sis-frozen=%d, %scontext-field-addr=%p",
 648                 PRFIELD(packet->frozen),
 649                 PRFIELD(packet->context_field ? packet->context_field->field : NULL));
 650         stream = bt_packet_borrow_stream_const(packet);
 651         if (!stream) {
 652                 return;
 653         }
 654
 655         BUF_APPEND(", %sstream-addr=%p", PRFIELD(stream));
 656         SET_TMP_PREFIX("stream-");
 657         format_stream(buf_ch, false, tmp_prefix, stream);
 658         trace_class = (const struct bt_trace_class *) bt_object_borrow_parent(&stream->base);
 659         if (!trace_class) {
 660                 return;
 661         }
 662
 663         BUF_APPEND(", %strace-class-addr=%p", PRFIELD(trace_class));
 664         SET_TMP_PREFIX("trace-class-");
 665         format_trace_class(buf_ch, false, tmp_prefix, trace_class);
 666 }
 667
 668 static inline void format_event(char **buf_ch, bool extended,
 669                 const char *prefix, const struct bt_event *event)
 670 {
 671         const struct bt_packet *packet;
 672         const struct bt_stream *stream;
 673         const struct bt_trace_class *trace_class;
 674         const struct bt_stream_class *stream_class;
 675         char tmp_prefix[64];
 676
 677         if (!extended) {
 678                 return;
 679         }
 680
 681         BUF_APPEND(", %sis-frozen=%d, "
 682                 "%scommon-context-field-addr=%p, "
 683                 "%sspecific-context-field-addr=%p, "
 684                 "%spayload-field-addr=%p, ",
 685                 PRFIELD(event->frozen),
 686                 PRFIELD(event->common_context_field),
 687                 PRFIELD(event->specific_context_field),
 688                 PRFIELD(event->payload_field));
 689         BUF_APPEND(", %sevent-class-addr=%p", PRFIELD(event->class));
 690
 691         if (!event->class) {
 692                 return;
 693         }
 694
 695         SET_TMP_PREFIX("event-class-");
 696         format_event_class(buf_ch, false, tmp_prefix, event->class);
 697         stream_class = bt_event_class_borrow_stream_class(event->class);
 698         if (stream_class) {
 699                 BUF_APPEND(", %sstream-class-addr=%p", PRFIELD(stream_class));
 700                 SET_TMP_PREFIX("stream-class-");
 701                 format_stream_class(buf_ch, false, tmp_prefix,
 702                         stream_class);
 703
 704                 trace_class = bt_stream_class_borrow_trace_class_inline(
 705                         stream_class);
 706                 if (trace_class) {
 707                         BUF_APPEND(", %strace-class-addr=%p",
 708                                 PRFIELD(trace_class));
 709                         SET_TMP_PREFIX("trace-class-");
 710                         format_trace_class(buf_ch, false, tmp_prefix,
 711                                 trace_class);
 712                 }
 713         }
 714
 715         packet = bt_event_borrow_packet_const(event);
 716         if (!packet) {
 717                 return;
 718         }
 719
 720         BUF_APPEND(", %spacket-addr=%p", PRFIELD(packet));
 721         SET_TMP_PREFIX("packet-");
 722         format_packet(buf_ch, false, tmp_prefix, packet);
 723         stream = bt_packet_borrow_stream_const(packet);
 724         if (!stream) {
 725                 return;
 726         }
 727
 728         BUF_APPEND(", %sstream-addr=%p", PRFIELD(stream));
 729         SET_TMP_PREFIX("stream-");
 730         format_stream(buf_ch, false, tmp_prefix, stream);
 731 }
 732
 733 static inline void format_clock_class(char **buf_ch, bool extended,
 734                 const char *prefix, const struct bt_clock_class *clock_class)
 735 {
 736         char tmp_prefix[64];
 737
 738         if (clock_class->name.value) {
 739                 BUF_APPEND(", %sname=\"%s\"", PRFIELD(clock_class->name.value));
 740         }
 741
 742         BUF_APPEND(", %sfreq=%" PRIu64, PRFIELD(clock_class->frequency));
 743
 744         if (!extended) {
 745                 return;
 746         }
 747
 748         if (clock_class->description.value) {
 749                 BUF_APPEND(", %spartial-descr=\"%.32s\"",
 750                         PRFIELD(clock_class->description.value));
 751         }
 752
 753         if (clock_class->uuid.value) {
 754                 BUF_APPEND_UUID(clock_class->uuid.value);
 755         }
 756
 757         BUF_APPEND(", %sis-frozen=%d, %sprecision=%" PRIu64 ", "
 758                 "%soffset-s=%" PRId64 ", "
 759                 "%soffset-cycles=%" PRIu64 ", %sis-absolute=%d, "
 760                 "%sbase-offset-ns=%" PRId64,
 761                 PRFIELD(clock_class->frozen), PRFIELD(clock_class->precision),
 762                 PRFIELD(clock_class->offset_seconds),
 763                 PRFIELD(clock_class->offset_cycles),
 764                 PRFIELD(clock_class->is_absolute),
 765                 PRFIELD(clock_class->base_offset.value_ns));
 766
 767         SET_TMP_PREFIX("cs-pool-");
 768         format_object_pool(buf_ch, extended, prefix, &clock_class->cs_pool);
 769 }
 770
 771 static inline void format_clock_snapshot(char **buf_ch, bool extended,
 772                 const char *prefix, const struct bt_clock_snapshot *clock_snapshot)
 773 {
 774         char tmp_prefix[64];
 775         BUF_APPEND(", %svalue=%" PRIu64 ", %sns-from-origin=%" PRId64,
 776                 PRFIELD(clock_snapshot->value_cycles),
 777                 PRFIELD(clock_snapshot->ns_from_origin));
 778
 779         if (!extended) {
 780                 return;
 781         }
 782
 783         BUF_APPEND(", %sis-set=%d", PRFIELD(clock_snapshot->is_set));
 784
 785         if (clock_snapshot->clock_class) {
 786                 BUF_APPEND(", %sclock-class-addr=%p",
 787                         PRFIELD(clock_snapshot->clock_class));
 788                 SET_TMP_PREFIX("clock-class-");
 789                 format_clock_class(buf_ch, false, tmp_prefix,
 790                         clock_snapshot->clock_class);
 791         }
 792 }
 793
 794 static inline void format_value(char **buf_ch, bool extended,
 795                 const char *prefix, const struct bt_value *value)
 796 {
 797         BUF_APPEND(", %stype=%s",
 798                 PRFIELD(bt_common_value_type_string(bt_value_get_type(value))));
 799
 800         if (!extended) {
 801                 return;
 802         }
 803
 804         switch (bt_value_get_type(value)) {
 805         case BT_VALUE_TYPE_BOOL:
 806         {
 807                 bt_bool val = bt_value_bool_get(value);
 808
 809                 BUF_APPEND(", %svalue=%d", PRFIELD(val));
 810                 break;
 811         }
 812         case BT_VALUE_TYPE_INTEGER:
 813         {
 814                 int64_t val = bt_value_integer_get(value);
 815
 816                 BUF_APPEND(", %svalue=%" PRId64, PRFIELD(val));
 817                 break;
 818         }
 819         case BT_VALUE_TYPE_REAL:
 820         {
 821                 double val = bt_value_real_get(value);
 822
 823                 BUF_APPEND(", %svalue=%f", PRFIELD(val));
 824                 break;
 825         }
 826         case BT_VALUE_TYPE_STRING:
 827         {
 828                 const char *val = bt_value_string_get(value);
 829
 830                 BUF_APPEND(", %spartial-value=\"%.32s\"", PRFIELD(val));
 831                 break;
 832         }
 833         case BT_VALUE_TYPE_ARRAY:
 834         {
 835                 int64_t count = bt_value_array_get_size(value);
 836
 837                 BT_ASSERT(count >= 0);
 838                 BUF_APPEND(", %selement-count=%" PRId64, PRFIELD(count));
 839                 break;
 840         }
 841         case BT_VALUE_TYPE_MAP:
 842         {
 843                 int64_t count = bt_value_map_get_size(value);
 844
 845                 BT_ASSERT(count >= 0);
 846                 BUF_APPEND(", %selement-count=%" PRId64, PRFIELD(count));
 847                 break;
 848         }
 849         default:
 850                 break;
 851         }
 852 }
 853
 854 static inline void format_message(char **buf_ch, bool extended,
 855                 const char *prefix, const struct bt_message *msg)
 856 {
 857         char tmp_prefix[64];
 858
 859         BUF_APPEND(", %stype=%s",
 860                 PRFIELD(bt_message_type_string(msg->type)));
 861
 862         if (!extended) {
 863                 return;
 864         }
 865
 866         BUF_APPEND(", %sis-frozen=%d, %sgraph-addr=%p",
 867                 PRFIELD(msg->frozen), PRFIELD(msg->graph));
 868
 869         switch (msg->type) {
 870         case BT_MESSAGE_TYPE_EVENT:
 871         {
 872                 const struct bt_message_event *msg_event =
 873                         (const void *) msg;
 874
 875                 if (msg_event->event) {
 876                         SET_TMP_PREFIX("event-");
 877                         format_event(buf_ch, true, tmp_prefix,
 878                                 msg_event->event);
 879                 }
 880
 881                 break;
 882         }
 883         case BT_MESSAGE_TYPE_STREAM_BEGINNING:
 884         case BT_MESSAGE_TYPE_STREAM_END:
 885         {
 886                 const struct bt_message_stream *msg_stream = (const void *) msg;
 887
 888                 if (msg_stream->stream) {
 889                         SET_TMP_PREFIX("stream-");
 890                         format_stream(buf_ch, true, tmp_prefix,
 891                                 msg_stream->stream);
 892                 }
 893
 894                 break;
 895         }
 896         case BT_MESSAGE_TYPE_STREAM_ACTIVITY_BEGINNING:
 897         case BT_MESSAGE_TYPE_STREAM_ACTIVITY_END:
 898         {
 899                 const struct bt_message_stream_activity *msg_stream_activity =
 900                         (const void *) msg;
 901
 902                 if (msg_stream_activity->stream) {
 903                         SET_TMP_PREFIX("stream-");
 904                         format_stream(buf_ch, true, tmp_prefix,
 905                                 msg_stream_activity->stream);
 906                 }
 907
 908                 BUF_APPEND(", %sdefault-cs-state=%s",
 909                         PRFIELD(bt_message_stream_activity_clock_snapshot_state_string(
 910                                 msg_stream_activity->default_cs_state)));
 911
 912                 if (msg_stream_activity->default_cs) {
 913                         SET_TMP_PREFIX("default-cs-");
 914                         format_clock_snapshot(buf_ch, true, tmp_prefix,
 915                                 msg_stream_activity->default_cs);
 916                 }
 917
 918                 break;
 919         }
 920         case BT_MESSAGE_TYPE_PACKET_BEGINNING:
 921         case BT_MESSAGE_TYPE_PACKET_END:
 922         {
 923                 const struct bt_message_packet *msg_packet = (const void *) msg;
 924
 925                 if (msg_packet->packet) {
 926                         SET_TMP_PREFIX("packet-");
 927                         format_packet(buf_ch, true, tmp_prefix,
 928                                 msg_packet->packet);
 929                 }
 930
 931                 break;
 932         }
 933         case BT_MESSAGE_TYPE_DISCARDED_EVENTS:
 934         case BT_MESSAGE_TYPE_DISCARDED_PACKETS:
 935         {
 936                 const struct bt_message_discarded_items *msg_disc_items =
 937                         (const void *) msg;
 938
 939                 if (msg_disc_items->stream) {
 940                         SET_TMP_PREFIX("stream-");
 941                         format_stream(buf_ch, true, tmp_prefix,
 942                                 msg_disc_items->stream);
 943                 }
 944
 945                 if (msg_disc_items->default_begin_cs) {
 946                         SET_TMP_PREFIX("default-begin-cs-");
 947                         format_clock_snapshot(buf_ch, true, tmp_prefix,
 948                                 msg_disc_items->default_begin_cs);
 949                 }
 950
 951                 if (msg_disc_items->default_end_cs) {
 952                         SET_TMP_PREFIX("default-end-cs-");
 953                         format_clock_snapshot(buf_ch, true, tmp_prefix,
 954                                 msg_disc_items->default_end_cs);
 955                 }
 956
 957                 if (msg_disc_items->count.base.avail) {
 958                         BUF_APPEND(", %scount=%" PRIu64,
 959                                 PRFIELD(msg_disc_items->count.value));
 960                 }
 961
 962                 break;
 963         }
 964         default:
 965                 break;
 966         }
 967 }
 968
 969 static inline void format_plugin_so_shared_lib_handle(char **buf_ch,
 970                 const char *prefix,
 971                 const struct bt_plugin_so_shared_lib_handle *handle)
 972 {
 973         BUF_APPEND(", %saddr=%p", PRFIELD(handle));
 974
 975         if (handle->path) {
 976                 BUF_APPEND(", %spath=\"%s\"", PRFIELD_GSTRING(handle->path));
 977         }
 978 }
 979
 980 static inline void format_component_class(char **buf_ch, bool extended,
 981                 const char *prefix,
 982                 const struct bt_component_class *comp_class)
 983 {
 984         char tmp_prefix[64];
 985
 986         BUF_APPEND(", %stype=%s, %sname=\"%s\"",
 987                 PRFIELD(bt_component_class_type_string(comp_class->type)),
 988                 PRFIELD_GSTRING(comp_class->name));
 989
 990         if (comp_class->description) {
 991                 BUF_APPEND(", %spartial-descr=\"%.32s\"",
 992                         PRFIELD_GSTRING(comp_class->description));
 993         }
 994
 995         if (!extended) {
 996                 return;
 997         }
 998
 999         BUF_APPEND(", %sis-frozen=%d", PRFIELD(comp_class->frozen));
1000
1001         if (comp_class->so_handle) {
1002                 SET_TMP_PREFIX("so-handle-");
1003                 format_plugin_so_shared_lib_handle(buf_ch, tmp_prefix,
1004                         comp_class->so_handle);
1005         }
1006 }
1007
1008 static inline void format_component(char **buf_ch, bool extended,
1009                 const char *prefix, const struct bt_component *component)
1010 {
1011         char tmp_prefix[64];
1012
1013         BUF_APPEND(", %sname=\"%s\"",
1014                 PRFIELD_GSTRING(component->name));
1015
1016         if (component->class) {
1017                 SET_TMP_PREFIX("class-");
1018                 format_component_class(buf_ch, extended, tmp_prefix,
1019                         component->class);
1020         }
1021
1022         if (!extended) {
1023                 return;
1024         }
1025
1026         if (component->input_ports) {
1027                 BUF_APPEND(", %sinput-port-count=%u",
1028                         PRFIELD(component->input_ports->len));
1029         }
1030
1031         if (component->output_ports) {
1032                 BUF_APPEND(", %soutput-port-count=%u",
1033                         PRFIELD(component->output_ports->len));
1034         }
1035 }
1036
1037 static inline void format_port(char **buf_ch, bool extended,
1038                 const char *prefix, const struct bt_port *port)
1039 {
1040         char tmp_prefix[64];
1041
1042         BUF_APPEND(", %stype=%s, %sname=\"%s\"",
1043                 PRFIELD(bt_port_type_string(port->type)),
1044                 PRFIELD_GSTRING(port->name));
1045
1046         if (!extended) {
1047                 return;
1048         }
1049
1050         if (port->connection) {
1051                 SET_TMP_PREFIX("conn-");
1052                 format_connection(buf_ch, false, tmp_prefix, port->connection);
1053         }
1054 }
1055
1056 static inline void format_connection(char **buf_ch, bool extended,
1057                 const char *prefix, const struct bt_connection *connection)
1058 {
1059         char tmp_prefix[64];
1060
1061         if (!extended) {
1062                 return;
1063         }
1064
1065         if (connection->upstream_port) {
1066                 SET_TMP_PREFIX("upstream-port-");
1067                 format_port(buf_ch, false, tmp_prefix,
1068                         connection->upstream_port);
1069         }
1070
1071         if (connection->downstream_port) {
1072                 SET_TMP_PREFIX("downstream-port-");
1073                 format_port(buf_ch, false, tmp_prefix,
1074                         connection->downstream_port);
1075         }
1076 }
1077
1078 static inline void format_graph(char **buf_ch, bool extended,
1079                 const char *prefix, const struct bt_graph *graph)
1080 {
1081         char tmp_prefix[64];
1082
1083         BUF_APPEND(", %sis-canceled=%d", PRFIELD(graph->canceled));
1084
1085         if (!extended) {
1086                 return;
1087         }
1088
1089         if (graph->components) {
1090                 BUF_APPEND(", %scomp-count=%u",
1091                         PRFIELD(graph->components->len));
1092         }
1093
1094         if (graph->connections) {
1095                 BUF_APPEND(", %sconn-count=%u",
1096                         PRFIELD(graph->connections->len));
1097         }
1098
1099         SET_TMP_PREFIX("en-pool-");
1100         format_object_pool(buf_ch, extended, prefix,
1101                 &graph->event_msg_pool);
1102         SET_TMP_PREFIX("pbn-pool-");
1103         format_object_pool(buf_ch, extended, prefix,
1104                 &graph->packet_begin_msg_pool);
1105         SET_TMP_PREFIX("pen-pool-");
1106         format_object_pool(buf_ch, extended, prefix,
1107                 &graph->packet_end_msg_pool);
1108 }
1109
1110 static inline void format_message_iterator(char **buf_ch,
1111                 bool extended, const char *prefix,
1112                 const struct bt_message_iterator *iterator)
1113 {
1114         const char *type;
1115         char tmp_prefix[64];
1116
1117         if (iterator->type == BT_MESSAGE_ITERATOR_TYPE_SELF_COMPONENT_PORT_INPUT) {
1118                 type = "BT_MESSAGE_ITERATOR_TYPE_SELF_COMPONENT_PORT_INPUT";
1119         } else if (iterator->type == BT_MESSAGE_ITERATOR_TYPE_PORT_OUTPUT) {
1120                 type = "BT_MESSAGE_ITERATOR_TYPE_PORT_OUTPUT";
1121         } else {
1122                 type = "(unknown)";
1123         }
1124
1125         BUF_APPEND(", %stype=%s", PRFIELD(type));
1126
1127         switch (iterator->type) {
1128         case BT_MESSAGE_ITERATOR_TYPE_SELF_COMPONENT_PORT_INPUT:
1129         {
1130                 const struct bt_self_component_port_input_message_iterator *
1131                         port_in_iter = (const void *) iterator;
1132
1133                 if (port_in_iter->upstream_component) {
1134                         SET_TMP_PREFIX("upstream-comp-");
1135                         format_component(buf_ch, false, tmp_prefix,
1136                                 port_in_iter->upstream_component);
1137                 }
1138
1139                 if (port_in_iter->upstream_port) {
1140                         SET_TMP_PREFIX("upstream-port-");
1141                         format_port(buf_ch, false, tmp_prefix,
1142                                 port_in_iter->upstream_port);
1143                 }
1144
1145                 if (port_in_iter->connection) {
1146                         SET_TMP_PREFIX("upstream-conn-");
1147                         format_connection(buf_ch, false, tmp_prefix,
1148                                 port_in_iter->connection);
1149                 }
1150                 break;
1151         }
1152         case BT_MESSAGE_ITERATOR_TYPE_PORT_OUTPUT:
1153         {
1154                 const struct bt_port_output_message_iterator *port_out_iter =
1155                         (const void *) iterator;
1156
1157                 if (port_out_iter->graph) {
1158                         SET_TMP_PREFIX("graph-");
1159                         format_graph(buf_ch, false, tmp_prefix,
1160                                 port_out_iter->graph);
1161                 }
1162
1163                 if (port_out_iter->colander) {
1164                         SET_TMP_PREFIX("colander-comp-");
1165                         format_component(buf_ch, false, tmp_prefix,
1166                                 (void *) port_out_iter->colander);
1167                 }
1168
1169                 break;
1170         }
1171         default:
1172                 break;
1173         }
1174 }
1175
1176 static inline void format_plugin(char **buf_ch, bool extended,
1177                 const char *prefix, const struct bt_plugin *plugin)
1178 {
1179         char tmp_prefix[64];
1180
1181         BUF_APPEND(", %stype=%s", PRFIELD(bt_plugin_type_string(plugin->type)));
1182
1183         if (plugin->info.path_set) {
1184                 BUF_APPEND(", %spath=\"%s\"",
1185                         PRFIELD_GSTRING(plugin->info.path));
1186         }
1187
1188         if (plugin->info.name_set) {
1189                 BUF_APPEND(", %sname=\"%s\"",
1190                         PRFIELD_GSTRING(plugin->info.name));
1191         }
1192
1193         if (!extended) {
1194                 return;
1195         }
1196
1197         if (plugin->info.author_set) {
1198                 BUF_APPEND(", %sauthor=\"%s\"",
1199                         PRFIELD_GSTRING(plugin->info.author));
1200         }
1201
1202         if (plugin->info.license_set) {
1203                 BUF_APPEND(", %slicense=\"%s\"",
1204                         PRFIELD_GSTRING(plugin->info.license));
1205         }
1206
1207         if (plugin->info.version_set) {
1208                 BUF_APPEND(", %sversion=%u.%u.%u%s",
1209                         PRFIELD(plugin->info.version.major),
1210                         plugin->info.version.minor,
1211                         plugin->info.version.patch,
1212                         plugin->info.version.extra ?
1213                                 plugin->info.version.extra->str : "");
1214         }
1215
1216         BUF_APPEND(", %ssrc-comp-class-count=%u, %sflt-comp-class-count=%u, "
1217                 "%ssink-comp-class-count=%u",
1218                 PRFIELD(plugin->src_comp_classes->len),
1219                 PRFIELD(plugin->flt_comp_classes->len),
1220                 PRFIELD(plugin->sink_comp_classes->len));
1221
1222         if (plugin->spec_data) {
1223                 const struct bt_plugin_so_spec_data *spec_data =
1224                         (const void *) plugin->spec_data;
1225
1226                 if (spec_data->shared_lib_handle) {
1227                         SET_TMP_PREFIX("so-handle-");
1228                         format_plugin_so_shared_lib_handle(buf_ch, tmp_prefix,
1229                                 spec_data->shared_lib_handle);
1230                 }
1231         }
1232 }
1233
1234 static inline void handle_conversion_specifier_bt(void *priv_data,
1235                 char **buf_ch, size_t avail_size,
1236                 const char **out_fmt_ch, va_list *args)
1237 {
1238         const char *fmt_ch = *out_fmt_ch;
1239         bool extended = false;
1240         char prefix[64];
1241         char *prefix_ch = prefix;
1242         const void *obj;
1243
1244         /* skip "%!" */
1245         fmt_ch += 2;
1246
1247         if (*fmt_ch == 'u') {
1248                 /* UUID */
1249                 obj = va_arg(*args, void *);
1250                 format_uuid(buf_ch, obj);
1251                 goto update_fmt;
1252         }
1253
1254         if (*fmt_ch == '[') {
1255                 /* local prefix */
1256                 fmt_ch++;
1257
1258                 while (true) {
1259                         if (*fmt_ch == ']') {
1260                                 *prefix_ch = '\0';
1261                                 fmt_ch++;
1262                                 break;
1263                         }
1264
1265                         *prefix_ch = *fmt_ch;
1266                         prefix_ch++;
1267                         fmt_ch++;
1268                 }
1269         }
1270
1271         *prefix_ch = '\0';
1272
1273         if (*fmt_ch == '+') {
1274                 extended = true;
1275                 fmt_ch++;
1276         }
1277
1278         obj = va_arg(*args, void *);
1279         BUF_APPEND("%saddr=%p", prefix, obj);
1280
1281         if (!obj) {
1282                 goto update_fmt;
1283         }
1284
1285         switch (*fmt_ch) {
1286         case 'F':
1287                 format_field_class(buf_ch, extended, prefix, obj);
1288                 break;
1289         case 'f':
1290                 format_field(buf_ch, extended, prefix, obj);
1291                 break;
1292         case 'P':
1293                 format_field_path(buf_ch, extended, prefix, obj);
1294                 break;
1295         case 'E':
1296                 format_event_class(buf_ch, extended, prefix, obj);
1297                 break;
1298         case 'e':
1299                 format_event(buf_ch, extended, prefix, obj);
1300                 break;
1301         case 'S':
1302                 format_stream_class(buf_ch, extended, prefix, obj);
1303                 break;
1304         case 's':
1305                 format_stream(buf_ch, extended, prefix, obj);
1306                 break;
1307         case 'a':
1308                 format_packet(buf_ch, extended, prefix, obj);
1309                 break;
1310         case 't':
1311                 format_trace(buf_ch, extended, prefix, obj);
1312                 break;
1313         case 'T':
1314                 format_trace_class(buf_ch, extended, prefix, obj);
1315                 break;
1316         case 'K':
1317                 format_clock_class(buf_ch, extended, prefix, obj);
1318                 break;
1319         case 'k':
1320                 format_clock_snapshot(buf_ch, extended, prefix, obj);
1321                 break;
1322         case 'v':
1323                 format_value(buf_ch, extended, prefix, obj);
1324                 break;
1325         case 'n':
1326                 format_message(buf_ch, extended, prefix, obj);
1327                 break;
1328         case 'i':
1329                 format_message_iterator(buf_ch, extended, prefix, obj);
1330                 break;
1331         case 'C':
1332                 format_component_class(buf_ch, extended, prefix, obj);
1333                 break;
1334         case 'c':
1335                 format_component(buf_ch, extended, prefix, obj);
1336                 break;
1337         case 'p':
1338                 format_port(buf_ch, extended, prefix, obj);
1339                 break;
1340         case 'x':
1341                 format_connection(buf_ch, extended, prefix, obj);
1342                 break;
1343         case 'l':
1344                 format_plugin(buf_ch, extended, prefix, obj);
1345                 break;
1346         case 'g':
1347                 format_graph(buf_ch, extended, prefix, obj);
1348                 break;
1349         case 'o':
1350                 format_object_pool(buf_ch, extended, prefix, obj);
1351                 break;
1352         case 'O':
1353                 format_object(buf_ch, extended, prefix, obj);
1354                 break;
1355         default:
1356                 abort();
1357         }
1358
1359 update_fmt:
1360         fmt_ch++;
1361         *out_fmt_ch = fmt_ch;
1362 }
1363
1364 BT_HIDDEN
1365 void bt_lib_log(const char *func, const char *file, unsigned line,
1366                 int lvl, const char *tag, const char *fmt, ...)
1367 {
1368         va_list args;
1369
1370         BT_ASSERT(fmt);
1371         va_start(args, fmt);
1372         bt_common_custom_vsnprintf(lib_logging_buf, LIB_LOGGING_BUF_SIZE, '!',
1373                 handle_conversion_specifier_bt, NULL, fmt, &args);
1374         va_end(args);
1375         _bt_log_write_d(func, file, line, lvl, tag, "%s", lib_logging_buf);
1376 }