src/plugins/text/pretty/print.c

   1 /*
   2  * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   3  * Copyright 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   4  *
   5  * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy
   8  * of this software and associated documentation files (the "Software"), to deal
   9  * in the Software without restriction, including without limitation the rights
  10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11  * copies of the Software, and to permit persons to whom the Software is
  12  * furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  20  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  */
  25
  26 #include <babeltrace2/babeltrace.h>
  27 #include "compat/bitfield.h"
  28 #include "common/common.h"
  29 #include "common/uuid.h"
  30 #include "compat/time.h"
  31 #include "common/assert.h"
  32 #include <inttypes.h>
  33 #include <ctype.h>
  34 #include <string.h>
  35 #include "pretty.h"
  36
  37 #define NSEC_PER_SEC 1000000000LL
  38
  39 #define COLOR_NAME              BT_COMMON_COLOR_BOLD
  40 #define COLOR_FIELD_NAME        BT_COMMON_COLOR_FG_CYAN
  41 #define COLOR_RST               BT_COMMON_COLOR_RESET
  42 #define COLOR_STRING_VALUE      BT_COMMON_COLOR_BOLD
  43 #define COLOR_NUMBER_VALUE      BT_COMMON_COLOR_BOLD
  44 #define COLOR_ENUM_MAPPING_NAME BT_COMMON_COLOR_BOLD
  45 #define COLOR_UNKNOWN           BT_COMMON_COLOR_BOLD BT_COMMON_COLOR_FG_RED
  46 #define COLOR_EVENT_NAME        BT_COMMON_COLOR_BOLD BT_COMMON_COLOR_FG_MAGENTA
  47 #define COLOR_TIMESTAMP         BT_COMMON_COLOR_BOLD BT_COMMON_COLOR_FG_YELLOW
  48
  49 struct timestamp {
  50         int64_t real_timestamp; /* Relative to UNIX epoch. */
  51         uint64_t clock_snapshot;        /* In cycles. */
  52 };
  53
  54 static
  55 int print_field(struct pretty_component *pretty,
  56                 const bt_field *field, bool print_names,
  57                 GQuark *filters_fields, int filter_array_len);
  58
  59 static
  60 void print_name_equal(struct pretty_component *pretty, const char *name)
  61 {
  62         if (pretty->use_colors) {
  63                 g_string_append_printf(pretty->string, "%s%s%s = ", COLOR_NAME,
  64                         name, COLOR_RST);
  65         } else {
  66                 g_string_append_printf(pretty->string, "%s = ", name);
  67         }
  68 }
  69
  70 static
  71 void print_field_name_equal(struct pretty_component *pretty, const char *name)
  72 {
  73         if (pretty->use_colors) {
  74                 g_string_append_printf(pretty->string, "%s%s%s = ",
  75                         COLOR_FIELD_NAME, name, COLOR_RST);
  76         } else {
  77                 g_string_append_printf(pretty->string, "%s = ", name);
  78         }
  79 }
  80
  81 static
  82 void print_timestamp_cycles(struct pretty_component *pretty,
  83                 const bt_clock_snapshot *clock_snapshot, bool update_last)
  84 {
  85         uint64_t cycles;
  86
  87         cycles = bt_clock_snapshot_get_value(clock_snapshot);
  88         g_string_append_printf(pretty->string, "%020" PRIu64, cycles);
  89
  90         if (update_last) {
  91                 if (pretty->last_cycles_timestamp != -1ULL) {
  92                         pretty->delta_cycles = cycles - pretty->last_cycles_timestamp;
  93                 }
  94
  95                 pretty->last_cycles_timestamp = cycles;
  96         }
  97 }
  98
  99 static
 100 void print_timestamp_wall(struct pretty_component *pretty,
 101                 const bt_clock_snapshot *clock_snapshot, bool update_last)
 102 {
 103         int ret;
 104         int64_t ts_nsec = 0;    /* add configurable offset */
 105         int64_t ts_sec = 0;     /* add configurable offset */
 106         uint64_t ts_sec_abs, ts_nsec_abs;
 107         bool is_negative;
 108
 109         if (!clock_snapshot) {
 110                 g_string_append(pretty->string, "??:??:??.?????????");
 111                 return;
 112         }
 113
 114         ret = bt_clock_snapshot_get_ns_from_origin(clock_snapshot, &ts_nsec);
 115         if (ret) {
 116                 // TODO: log, this is unexpected
 117                 g_string_append(pretty->string, "Error");
 118                 return;
 119         }
 120
 121         if (update_last) {
 122                 if (pretty->last_real_timestamp != -1ULL) {
 123                         pretty->delta_real_timestamp = ts_nsec - pretty->last_real_timestamp;
 124                 }
 125
 126                 pretty->last_real_timestamp = ts_nsec;
 127         }
 128
 129         ts_sec += ts_nsec / NSEC_PER_SEC;
 130         ts_nsec = ts_nsec % NSEC_PER_SEC;
 131
 132         if (ts_sec >= 0 && ts_nsec >= 0) {
 133                 is_negative = false;
 134                 ts_sec_abs = ts_sec;
 135                 ts_nsec_abs = ts_nsec;
 136         } else if (ts_sec > 0 && ts_nsec < 0) {
 137                 is_negative = false;
 138                 ts_sec_abs = ts_sec - 1;
 139                 ts_nsec_abs = NSEC_PER_SEC + ts_nsec;
 140         } else if (ts_sec == 0 && ts_nsec < 0) {
 141                 is_negative = true;
 142                 ts_sec_abs = ts_sec;
 143                 ts_nsec_abs = -ts_nsec;
 144         } else if (ts_sec < 0 && ts_nsec > 0) {
 145                 is_negative = true;
 146                 ts_sec_abs = -(ts_sec + 1);
 147                 ts_nsec_abs = NSEC_PER_SEC - ts_nsec;
 148         } else if (ts_sec < 0 && ts_nsec == 0) {
 149                 is_negative = true;
 150                 ts_sec_abs = -ts_sec;
 151                 ts_nsec_abs = ts_nsec;
 152         } else {        /* (ts_sec < 0 && ts_nsec < 0) */
 153                 is_negative = true;
 154                 ts_sec_abs = -ts_sec;
 155                 ts_nsec_abs = -ts_nsec;
 156         }
 157
 158         if (!pretty->options.clock_seconds) {
 159                 struct tm tm;
 160                 time_t time_s = (time_t) ts_sec_abs;
 161
 162                 if (is_negative && !pretty->negative_timestamp_warning_done) {
 163                         // TODO: log instead
 164                         fprintf(stderr, "[warning] Fallback to [sec.ns] to print negative time value. Use --clock-seconds.\n");
 165                         pretty->negative_timestamp_warning_done = true;
 166                         goto seconds;
 167                 }
 168
 169                 if (!pretty->options.clock_gmt) {
 170                         struct tm *res;
 171
 172                         res = bt_localtime_r(&time_s, &tm);
 173                         if (!res) {
 174                                 // TODO: log instead
 175                                 fprintf(stderr, "[warning] Unable to get localtime.\n");
 176                                 goto seconds;
 177                         }
 178                 } else {
 179                         struct tm *res;
 180
 181                         res = bt_gmtime_r(&time_s, &tm);
 182                         if (!res) {
 183                                 // TODO: log instead
 184                                 fprintf(stderr, "[warning] Unable to get gmtime.\n");
 185                                 goto seconds;
 186                         }
 187                 }
 188                 if (pretty->options.clock_date) {
 189                         char timestr[26];
 190                         size_t res;
 191
 192                         /* Print date and time */
 193                         res = strftime(timestr, sizeof(timestr),
 194                                         "%Y-%m-%d ", &tm);
 195                         if (!res) {
 196                                 // TODO: log instead
 197                                 fprintf(stderr, "[warning] Unable to print ascii time.\n");
 198                                 goto seconds;
 199                         }
 200
 201                         g_string_append(pretty->string, timestr);
 202                 }
 203
 204                 /* Print time in HH:MM:SS.ns */
 205                 g_string_append_printf(pretty->string,
 206                         "%02d:%02d:%02d.%09" PRIu64, tm.tm_hour, tm.tm_min,
 207                         tm.tm_sec, ts_nsec_abs);
 208                 goto end;
 209         }
 210 seconds:
 211         g_string_append_printf(pretty->string, "%s%" PRId64 ".%09" PRIu64,
 212                 is_negative ? "-" : "", ts_sec_abs, ts_nsec_abs);
 213 end:
 214         return;
 215 }
 216
 217 static
 218 int print_event_timestamp(struct pretty_component *pretty,
 219                 const bt_message *event_msg, bool *start_line)
 220 {
 221         bool print_names = pretty->options.print_header_field_names;
 222         int ret = 0;
 223         const bt_clock_snapshot *clock_snapshot = NULL;
 224
 225         if (!bt_message_event_borrow_stream_class_default_clock_class_const(
 226                         event_msg)) {
 227                 /* No default clock class: skip the timestamp without an error */
 228                 goto end;
 229         }
 230
 231         clock_snapshot = bt_message_event_borrow_default_clock_snapshot_const(event_msg);
 232
 233         if (print_names) {
 234                 print_name_equal(pretty, "timestamp");
 235         } else {
 236                 g_string_append(pretty->string, "[");
 237         }
 238         if (pretty->use_colors) {
 239                 g_string_append(pretty->string, COLOR_TIMESTAMP);
 240         }
 241         if (pretty->options.print_timestamp_cycles) {
 242                 print_timestamp_cycles(pretty, clock_snapshot, true);
 243         } else {
 244                 print_timestamp_wall(pretty, clock_snapshot, true);
 245         }
 246         if (pretty->use_colors) {
 247                 g_string_append(pretty->string, COLOR_RST);
 248         }
 249
 250         if (!print_names)
 251                 g_string_append(pretty->string, "] ");
 252
 253         if (pretty->options.print_delta_field) {
 254                 if (print_names) {
 255                         g_string_append(pretty->string, ", ");
 256                         print_name_equal(pretty, "delta");
 257                 } else {
 258                         g_string_append(pretty->string, "(");
 259                 }
 260                 if (pretty->options.print_timestamp_cycles) {
 261                         if (pretty->delta_cycles == -1ULL) {
 262                                 g_string_append(pretty->string,
 263                                         "+??????????\?\?"); /* Not a trigraph. */
 264                         } else {
 265                                 g_string_append_printf(pretty->string,
 266                                         "+%012" PRIu64, pretty->delta_cycles);
 267                         }
 268                 } else {
 269                         if (pretty->delta_real_timestamp != -1ULL) {
 270                                 uint64_t delta_sec, delta_nsec, delta;
 271
 272                                 delta = pretty->delta_real_timestamp;
 273                                 delta_sec = delta / NSEC_PER_SEC;
 274                                 delta_nsec = delta % NSEC_PER_SEC;
 275                                 g_string_append_printf(pretty->string,
 276                                         "+%" PRIu64 ".%09" PRIu64,
 277                                         delta_sec, delta_nsec);
 278                         } else {
 279                                 g_string_append(pretty->string, "+?.?????????");
 280                         }
 281                 }
 282                 if (!print_names) {
 283                         g_string_append(pretty->string, ") ");
 284                 }
 285         }
 286         *start_line = !print_names;
 287
 288 end:
 289         return ret;
 290 }
 291
 292 static
 293 int print_event_header(struct pretty_component *pretty,
 294                 const bt_message *event_msg)
 295 {
 296         bool print_names = pretty->options.print_header_field_names;
 297         int ret = 0;
 298         const bt_event_class *event_class = NULL;
 299         const bt_packet *packet = NULL;
 300         const bt_stream *stream = NULL;
 301         const bt_trace *trace = NULL;
 302         const bt_event *event = bt_message_event_borrow_event_const(event_msg);
 303         const char *ev_name;
 304         int dom_print = 0;
 305         bt_property_availability prop_avail;
 306
 307         event_class = bt_event_borrow_class_const(event);
 308         packet = bt_event_borrow_packet_const(event);
 309         stream = bt_packet_borrow_stream_const(packet);
 310         trace = bt_stream_borrow_trace_const(stream);
 311         ret = print_event_timestamp(pretty, event_msg, &pretty->start_line);
 312         if (ret) {
 313                 goto end;
 314         }
 315         if (pretty->options.print_trace_field) {
 316                 const char *name;
 317
 318                 name = bt_trace_get_name(trace);
 319                 if (name) {
 320                         if (!pretty->start_line) {
 321                                 g_string_append(pretty->string, ", ");
 322                         }
 323                         if (print_names) {
 324                                 print_name_equal(pretty, "trace");
 325                         }
 326
 327                         g_string_append(pretty->string, name);
 328
 329                         if (print_names) {
 330                                 g_string_append(pretty->string, ", ");
 331                         }
 332                 }
 333         }
 334         if (pretty->options.print_trace_hostname_field) {
 335                 const bt_value *hostname_str;
 336
 337                 hostname_str = bt_trace_borrow_environment_entry_value_by_name_const(
 338                         trace, "hostname");
 339                 if (hostname_str) {
 340                         const char *str;
 341
 342                         if (!pretty->start_line) {
 343                                 g_string_append(pretty->string, ", ");
 344                         }
 345                         if (print_names) {
 346                                 print_name_equal(pretty, "trace:hostname");
 347                         }
 348                         str = bt_value_string_get(hostname_str);
 349                         g_string_append(pretty->string, str);
 350                         dom_print = 1;
 351                 }
 352         }
 353         if (pretty->options.print_trace_domain_field) {
 354                 const bt_value *domain_str;
 355
 356                 domain_str = bt_trace_borrow_environment_entry_value_by_name_const(
 357                         trace, "domain");
 358                 if (domain_str) {
 359                         const char *str;
 360
 361                         if (!pretty->start_line) {
 362                                 g_string_append(pretty->string, ", ");
 363                         }
 364                         if (print_names) {
 365                                 print_name_equal(pretty, "trace:domain");
 366                         } else if (dom_print) {
 367                                 g_string_append(pretty->string, ":");
 368                         }
 369                         str = bt_value_string_get(domain_str);
 370                         g_string_append(pretty->string, str);
 371                         dom_print = 1;
 372                 }
 373         }
 374         if (pretty->options.print_trace_procname_field) {
 375                 const bt_value *procname_str;
 376
 377                 procname_str = bt_trace_borrow_environment_entry_value_by_name_const(
 378                         trace, "procname");
 379                 if (procname_str) {
 380                         const char *str;
 381
 382                         if (!pretty->start_line) {
 383                                 g_string_append(pretty->string, ", ");
 384                         }
 385                         if (print_names) {
 386                                 print_name_equal(pretty, "trace:procname");
 387                         } else if (dom_print) {
 388                                 g_string_append(pretty->string, ":");
 389                         }
 390                         str = bt_value_string_get(procname_str);
 391                         g_string_append(pretty->string, str);
 392                         dom_print = 1;
 393                 }
 394         }
 395         if (pretty->options.print_trace_vpid_field) {
 396                 const bt_value *vpid_value;
 397
 398                 vpid_value = bt_trace_borrow_environment_entry_value_by_name_const(
 399                         trace, "vpid");
 400                 if (vpid_value) {
 401                         int64_t value;
 402
 403                         if (!pretty->start_line) {
 404                                 g_string_append(pretty->string, ", ");
 405                         }
 406                         if (print_names) {
 407                                 print_name_equal(pretty, "trace:vpid");
 408                         } else if (dom_print) {
 409                                 g_string_append(pretty->string, ":");
 410                         }
 411                         value = bt_value_signed_integer_get(vpid_value);
 412                         g_string_append_printf(pretty->string,
 413                                 "(%" PRId64 ")", value);
 414                         dom_print = 1;
 415                 }
 416         }
 417         if (pretty->options.print_loglevel_field) {
 418                 static const char *log_level_names[] = {
 419                         [ BT_EVENT_CLASS_LOG_LEVEL_EMERGENCY ] = "TRACE_EMERG",
 420                         [ BT_EVENT_CLASS_LOG_LEVEL_ALERT ] = "TRACE_ALERT",
 421                         [ BT_EVENT_CLASS_LOG_LEVEL_CRITICAL ] = "TRACE_CRIT",
 422                         [ BT_EVENT_CLASS_LOG_LEVEL_ERROR ] = "TRACE_ERR",
 423                         [ BT_EVENT_CLASS_LOG_LEVEL_WARNING ] = "TRACE_WARNING",
 424                         [ BT_EVENT_CLASS_LOG_LEVEL_NOTICE ] = "TRACE_NOTICE",
 425                         [ BT_EVENT_CLASS_LOG_LEVEL_INFO ] = "TRACE_INFO",
 426                         [ BT_EVENT_CLASS_LOG_LEVEL_DEBUG_SYSTEM ] = "TRACE_DEBUG_SYSTEM",
 427                         [ BT_EVENT_CLASS_LOG_LEVEL_DEBUG_PROGRAM ] = "TRACE_DEBUG_PROGRAM",
 428                         [ BT_EVENT_CLASS_LOG_LEVEL_DEBUG_PROCESS ] = "TRACE_DEBUG_PROCESS",
 429                         [ BT_EVENT_CLASS_LOG_LEVEL_DEBUG_MODULE ] = "TRACE_DEBUG_MODULE",
 430                         [ BT_EVENT_CLASS_LOG_LEVEL_DEBUG_UNIT ] = "TRACE_DEBUG_UNIT",
 431                         [ BT_EVENT_CLASS_LOG_LEVEL_DEBUG_FUNCTION ] = "TRACE_DEBUG_FUNCTION",
 432                         [ BT_EVENT_CLASS_LOG_LEVEL_DEBUG_LINE ] = "TRACE_DEBUG_LINE",
 433                         [ BT_EVENT_CLASS_LOG_LEVEL_DEBUG ] = "TRACE_DEBUG",
 434                 };
 435                 bt_event_class_log_level log_level;
 436                 const char *log_level_str = NULL;
 437
 438                 prop_avail = bt_event_class_get_log_level(event_class,
 439                         &log_level);
 440                 if (prop_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) {
 441                         log_level_str = log_level_names[log_level];
 442                         BT_ASSERT(log_level_str);
 443
 444                         if (!pretty->start_line) {
 445                                 g_string_append(pretty->string, ", ");
 446                         }
 447                         if (print_names) {
 448                                 print_name_equal(pretty, "loglevel");
 449                         } else if (dom_print) {
 450                                 g_string_append(pretty->string, ":");
 451                         }
 452
 453                         g_string_append(pretty->string, log_level_str);
 454                         g_string_append_printf(
 455                                 pretty->string, " (%d)", (int) log_level);
 456                         dom_print = 1;
 457                 }
 458         }
 459         if (pretty->options.print_emf_field) {
 460                 const char *uri_str;
 461
 462                 uri_str = bt_event_class_get_emf_uri(event_class);
 463                 if (uri_str) {
 464                         if (!pretty->start_line) {
 465                                 g_string_append(pretty->string, ", ");
 466                         }
 467                         if (print_names) {
 468                                 print_name_equal(pretty, "model.emf.uri");
 469                         } else if (dom_print) {
 470                                 g_string_append(pretty->string, ":");
 471                         }
 472
 473                         g_string_append(pretty->string, uri_str);
 474                         dom_print = 1;
 475                 }
 476         }
 477         if (dom_print && !print_names) {
 478                 g_string_append(pretty->string, " ");
 479         }
 480         if (!pretty->start_line) {
 481                 g_string_append(pretty->string, ", ");
 482         }
 483         pretty->start_line = true;
 484         if (print_names) {
 485                 print_name_equal(pretty, "name");
 486         }
 487         ev_name = bt_event_class_get_name(event_class);
 488         if (pretty->use_colors) {
 489                 if (ev_name) {
 490                         g_string_append(pretty->string, COLOR_EVENT_NAME);
 491                 } else {
 492                         g_string_append(pretty->string, COLOR_UNKNOWN);
 493                 }
 494         }
 495         if (ev_name) {
 496                 g_string_append(pretty->string, ev_name);
 497         } else {
 498                 g_string_append(pretty->string, "<unknown>");
 499         }
 500         if (pretty->use_colors) {
 501                 g_string_append(pretty->string, COLOR_RST);
 502         }
 503         if (!print_names) {
 504                 g_string_append(pretty->string, ": ");
 505         } else {
 506                 g_string_append(pretty->string, ", ");
 507         }
 508
 509 end:
 510         return ret;
 511 }
 512
 513 static
 514 int print_integer(struct pretty_component *pretty,
 515                 const bt_field *field)
 516 {
 517         int ret = 0;
 518         bt_field_class_integer_preferred_display_base base;
 519         const bt_field_class *int_fc;
 520         union {
 521                 uint64_t u;
 522                 int64_t s;
 523         } v;
 524         bool rst_color = false;
 525         bt_field_class_type ft_type;
 526
 527         int_fc = bt_field_borrow_class_const(field);
 528         BT_ASSERT(int_fc);
 529         ft_type = bt_field_get_class_type(field);
 530         if (ft_type == BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER ||
 531                         ft_type == BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION) {
 532                 v.u = bt_field_unsigned_integer_get_value(field);
 533         } else {
 534                 v.s = bt_field_signed_integer_get_value(field);
 535         }
 536
 537         if (pretty->use_colors) {
 538                 g_string_append(pretty->string, COLOR_NUMBER_VALUE);
 539                 rst_color = true;
 540         }
 541
 542         base = bt_field_class_integer_get_preferred_display_base(int_fc);
 543         switch (base) {
 544         case BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_BINARY:
 545         {
 546                 int bitnr, len;
 547
 548                 len = bt_field_class_integer_get_field_value_range(int_fc);
 549                 g_string_append(pretty->string, "0b");
 550                 _bt_safe_lshift(v.u, 64 - len);
 551                 for (bitnr = 0; bitnr < len; bitnr++) {
 552                         g_string_append_printf(pretty->string, "%u", (v.u & (1ULL << 63)) ? 1 : 0);
 553                         _bt_safe_lshift(v.u, 1);
 554                 }
 555                 break;
 556         }
 557         case BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_OCTAL:
 558         {
 559                 if (ft_type == BT_FIELD_CLASS_TYPE_SIGNED_INTEGER ||
 560                                 ft_type == BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION) {
 561                         int len;
 562
 563                         len = bt_field_class_integer_get_field_value_range(
 564                                 int_fc);
 565                         if (len < 64) {
 566                                 size_t rounded_len;
 567
 568                                 BT_ASSERT(len != 0);
 569                                 /* Round length to the nearest 3-bit */
 570                                 rounded_len = (((len - 1) / 3) + 1) * 3;
 571                                 v.u &= ((uint64_t) 1 << rounded_len) - 1;
 572                         }
 573                 }
 574
 575                 g_string_append_printf(pretty->string, "0%" PRIo64, v.u);
 576                 break;
 577         }
 578         case BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_DECIMAL:
 579                 if (ft_type == BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER ||
 580                                 ft_type == BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION) {
 581                         g_string_append_printf(pretty->string, "%" PRIu64, v.u);
 582                 } else {
 583                         g_string_append_printf(pretty->string, "%" PRId64, v.s);
 584                 }
 585                 break;
 586         case BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_HEXADECIMAL:
 587         {
 588                 int len;
 589
 590                 len = bt_field_class_integer_get_field_value_range(int_fc);
 591                 if (len < 64) {
 592                         /* Round length to the nearest nibble */
 593                         uint8_t rounded_len = ((len + 3) & ~0x3);
 594
 595                         v.u &= ((uint64_t) 1 << rounded_len) - 1;
 596                 }
 597
 598                 g_string_append_printf(pretty->string, "0x%" PRIX64, v.u);
 599                 break;
 600         }
 601         default:
 602                 ret = -1;
 603                 goto end;
 604         }
 605 end:
 606         if (rst_color) {
 607                 g_string_append(pretty->string, COLOR_RST);
 608         }
 609         return ret;
 610 }
 611
 612 static
 613 void print_escape_string(struct pretty_component *pretty, const char *str)
 614 {
 615         int i;
 616
 617         g_string_append_c(pretty->string, '"');
 618
 619         for (i = 0; i < strlen(str); i++) {
 620                 /* Escape sequences not recognized by iscntrl(). */
 621                 switch (str[i]) {
 622                 case '\\':
 623                         g_string_append(pretty->string, "\\\\");
 624                         continue;
 625                 case '\'':
 626                         g_string_append(pretty->string, "\\\'");
 627                         continue;
 628                 case '\"':
 629                         g_string_append(pretty->string, "\\\"");
 630                         continue;
 631                 case '\?':
 632                         g_string_append(pretty->string, "\\\?");
 633                         continue;
 634                 }
 635
 636                 /* Standard characters. */
 637                 if (!iscntrl(str[i])) {
 638                         g_string_append_c(pretty->string, str[i]);
 639                         continue;
 640                 }
 641
 642                 switch (str[i]) {
 643                 case '\0':
 644                         g_string_append(pretty->string, "\\0");
 645                         break;
 646                 case '\a':
 647                         g_string_append(pretty->string, "\\a");
 648                         break;
 649                 case '\b':
 650                         g_string_append(pretty->string, "\\b");
 651                         break;
 652                 case '\e':
 653                         g_string_append(pretty->string, "\\e");
 654                         break;
 655                 case '\f':
 656                         g_string_append(pretty->string, "\\f");
 657                         break;
 658                 case '\n':
 659                         g_string_append(pretty->string, "\\n");
 660                         break;
 661                 case '\r':
 662                         g_string_append(pretty->string, "\\r");
 663                         break;
 664                 case '\t':
 665                         g_string_append(pretty->string, "\\t");
 666                         break;
 667                 case '\v':
 668                         g_string_append(pretty->string, "\\v");
 669                         break;
 670                 default:
 671                         /* Unhandled control-sequence, print as hex. */
 672                         g_string_append_printf(pretty->string, "\\x%02x", str[i]);
 673                         break;
 674                 }
 675         }
 676
 677         g_string_append_c(pretty->string, '"');
 678 }
 679
 680 static
 681 int print_enum(struct pretty_component *pretty,
 682                 const bt_field *field)
 683 {
 684         int ret = 0;
 685         const bt_field_class *enumeration_field_class = NULL;
 686         bt_field_class_enumeration_mapping_label_array label_array;
 687         uint64_t label_count;
 688         uint64_t i;
 689
 690         enumeration_field_class = bt_field_borrow_class_const(field);
 691         if (!enumeration_field_class) {
 692                 ret = -1;
 693                 goto end;
 694         }
 695
 696         switch (bt_field_get_class_type(field)) {
 697         case BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION:
 698                 ret = bt_field_unsigned_enumeration_get_mapping_labels(field,
 699                         &label_array, &label_count);
 700                 break;
 701         case BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION:
 702                 ret = bt_field_signed_enumeration_get_mapping_labels(field,
 703                         &label_array, &label_count);
 704                 break;
 705         default:
 706                 abort();
 707         }
 708
 709         if (ret) {
 710                 ret = -1;
 711                 goto end;
 712         }
 713
 714         g_string_append(pretty->string, "( ");
 715         if (label_count == 0) {
 716                 if (pretty->use_colors) {
 717                         g_string_append(pretty->string, COLOR_UNKNOWN);
 718                 }
 719                 g_string_append(pretty->string, "<unknown>");
 720                 if (pretty->use_colors) {
 721                         g_string_append(pretty->string, COLOR_RST);
 722                 }
 723                 goto skip_loop;
 724         }
 725         for (i = 0; i < label_count; i++) {
 726                 const char *mapping_name = label_array[i];
 727
 728                 if (i != 0) {
 729                         g_string_append(pretty->string, ", ");
 730                 }
 731                 if (pretty->use_colors) {
 732                         g_string_append(pretty->string, COLOR_ENUM_MAPPING_NAME);
 733                 }
 734                 print_escape_string(pretty, mapping_name);
 735                 if (pretty->use_colors) {
 736                         g_string_append(pretty->string, COLOR_RST);
 737                 }
 738         }
 739 skip_loop:
 740         g_string_append(pretty->string, " : container = ");
 741         ret = print_integer(pretty, field);
 742         if (ret != 0) {
 743                 goto end;
 744         }
 745         g_string_append(pretty->string, " )");
 746 end:
 747         return ret;
 748 }
 749
 750 static
 751 int filter_field_name(struct pretty_component *pretty, const char *field_name,
 752                 GQuark *filter_fields, int filter_array_len)
 753 {
 754         int i;
 755         GQuark field_quark = g_quark_try_string(field_name);
 756
 757         if (!field_quark || pretty->options.verbose) {
 758                 return 1;
 759         }
 760
 761         for (i = 0; i < filter_array_len; i++) {
 762                 if (field_quark == filter_fields[i]) {
 763                         return 0;
 764                 }
 765         }
 766         return 1;
 767 }
 768
 769 static
 770 int print_struct_field(struct pretty_component *pretty,
 771                 const bt_field *_struct,
 772                 const bt_field_class *struct_class,
 773                 uint64_t i, bool print_names, uint64_t *nr_printed_fields,
 774                 GQuark *filter_fields, int filter_array_len)
 775 {
 776         int ret = 0;
 777         const char *field_name;
 778         const bt_field *field = NULL;
 779         const bt_field_class_structure_member *member;
 780
 781         field = bt_field_structure_borrow_member_field_by_index_const(_struct, i);
 782         if (!field) {
 783                 ret = -1;
 784                 goto end;
 785         }
 786
 787         member = bt_field_class_structure_borrow_member_by_index_const(
 788                 struct_class, i);
 789         field_name = bt_field_class_structure_member_get_name(member);
 790
 791         if (filter_fields && !filter_field_name(pretty, field_name,
 792                                 filter_fields, filter_array_len)) {
 793                 ret = 0;
 794                 goto end;
 795         }
 796
 797         if (*nr_printed_fields > 0) {
 798                 g_string_append(pretty->string, ", ");
 799         } else {
 800                 g_string_append(pretty->string, " ");
 801         }
 802         if (print_names) {
 803                 print_field_name_equal(pretty, field_name);
 804         }
 805         ret = print_field(pretty, field, print_names, NULL, 0);
 806         *nr_printed_fields += 1;
 807
 808 end:
 809         return ret;
 810 }
 811
 812 static
 813 int print_struct(struct pretty_component *pretty,
 814                 const bt_field *_struct, bool print_names,
 815                 GQuark *filter_fields, int filter_array_len)
 816 {
 817         int ret = 0;
 818         const bt_field_class *struct_class = NULL;
 819         uint64_t nr_fields, i, nr_printed_fields;
 820
 821         struct_class = bt_field_borrow_class_const(_struct);
 822         if (!struct_class) {
 823                 ret = -1;
 824                 goto end;
 825         }
 826
 827         nr_fields = bt_field_class_structure_get_member_count(struct_class);
 828
 829         g_string_append(pretty->string, "{");
 830         pretty->depth++;
 831         nr_printed_fields = 0;
 832         for (i = 0; i < nr_fields; i++) {
 833                 ret = print_struct_field(pretty, _struct, struct_class, i,
 834                                 print_names, &nr_printed_fields, filter_fields,
 835                                 filter_array_len);
 836                 if (ret != 0) {
 837                         goto end;
 838                 }
 839         }
 840         pretty->depth--;
 841         g_string_append(pretty->string, " }");
 842
 843 end:
 844         return ret;
 845 }
 846
 847 static
 848 int print_array_field(struct pretty_component *pretty,
 849                 const bt_field *array, uint64_t i, bool print_names)
 850 {
 851         const bt_field *field = NULL;
 852
 853         if (i != 0) {
 854                 g_string_append(pretty->string, ", ");
 855         } else {
 856                 g_string_append(pretty->string, " ");
 857         }
 858         if (print_names) {
 859                 g_string_append_printf(pretty->string, "[%" PRIu64 "] = ", i);
 860         }
 861
 862         field = bt_field_array_borrow_element_field_by_index_const(array, i);
 863         BT_ASSERT(field);
 864         return print_field(pretty, field, print_names, NULL, 0);
 865 }
 866
 867 static
 868 int print_array(struct pretty_component *pretty,
 869                 const bt_field *array, bool print_names)
 870 {
 871         int ret = 0;
 872         const bt_field_class *array_class = NULL;
 873         uint64_t len;
 874         uint64_t i;
 875
 876         array_class = bt_field_borrow_class_const(array);
 877         if (!array_class) {
 878                 ret = -1;
 879                 goto end;
 880         }
 881         len = bt_field_array_get_length(array);
 882         g_string_append(pretty->string, "[");
 883         pretty->depth++;
 884         for (i = 0; i < len; i++) {
 885                 ret = print_array_field(pretty, array, i, print_names);
 886                 if (ret != 0) {
 887                         goto end;
 888                 }
 889         }
 890         pretty->depth--;
 891         g_string_append(pretty->string, " ]");
 892
 893 end:
 894         return ret;
 895 }
 896
 897 static
 898 int print_sequence_field(struct pretty_component *pretty,
 899                 const bt_field *seq, uint64_t i, bool print_names)
 900 {
 901         const bt_field *field = NULL;
 902
 903         if (i != 0) {
 904                 g_string_append(pretty->string, ", ");
 905         } else {
 906                 g_string_append(pretty->string, " ");
 907         }
 908         if (print_names) {
 909                 g_string_append_printf(pretty->string, "[%" PRIu64 "] = ", i);
 910         }
 911
 912         field = bt_field_array_borrow_element_field_by_index_const(seq, i);
 913         BT_ASSERT(field);
 914         return print_field(pretty, field, print_names, NULL, 0);
 915 }
 916
 917 static
 918 int print_sequence(struct pretty_component *pretty,
 919                 const bt_field *seq, bool print_names)
 920 {
 921         int ret = 0;
 922         uint64_t len;
 923         uint64_t i;
 924
 925         len = bt_field_array_get_length(seq);
 926         g_string_append(pretty->string, "[");
 927
 928         pretty->depth++;
 929         for (i = 0; i < len; i++) {
 930                 ret = print_sequence_field(pretty, seq, i, print_names);
 931                 if (ret != 0) {
 932                         goto end;
 933                 }
 934         }
 935         pretty->depth--;
 936         g_string_append(pretty->string, " ]");
 937
 938 end:
 939         return ret;
 940 }
 941
 942 static
 943 int print_variant(struct pretty_component *pretty,
 944                 const bt_field *variant, bool print_names)
 945 {
 946         int ret = 0;
 947         const bt_field *field = NULL;
 948
 949         field = bt_field_variant_borrow_selected_option_field_const(variant);
 950         BT_ASSERT(field);
 951         g_string_append(pretty->string, "{ ");
 952         pretty->depth++;
 953         if (print_names) {
 954                 // TODO: find tag's name using field path
 955                 // print_field_name_equal(pretty, tag_choice);
 956         }
 957         ret = print_field(pretty, field, print_names, NULL, 0);
 958         if (ret != 0) {
 959                 goto end;
 960         }
 961         pretty->depth--;
 962         g_string_append(pretty->string, " }");
 963
 964 end:
 965         return ret;
 966 }
 967
 968 static
 969 int print_field(struct pretty_component *pretty,
 970                 const bt_field *field, bool print_names,
 971                 GQuark *filter_fields, int filter_array_len)
 972 {
 973         bt_field_class_type class_id;
 974
 975         class_id = bt_field_get_class_type(field);
 976         switch (class_id) {
 977         case BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER:
 978         case BT_FIELD_CLASS_TYPE_SIGNED_INTEGER:
 979                 return print_integer(pretty, field);
 980         case BT_FIELD_CLASS_TYPE_REAL:
 981         {
 982                 double v;
 983
 984                 v = bt_field_real_get_value(field);
 985                 if (pretty->use_colors) {
 986                         g_string_append(pretty->string, COLOR_NUMBER_VALUE);
 987                 }
 988                 g_string_append_printf(pretty->string, "%g", v);
 989                 if (pretty->use_colors) {
 990                         g_string_append(pretty->string, COLOR_RST);
 991                 }
 992                 return 0;
 993         }
 994         case BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION:
 995         case BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION:
 996                 return print_enum(pretty, field);
 997         case BT_FIELD_CLASS_TYPE_STRING:
 998         {
 999                 const char *str;
1000
1001                 str = bt_field_string_get_value(field);
1002                 if (!str) {
1003                         return -1;
1004                 }
1005
1006                 if (pretty->use_colors) {
1007                         g_string_append(pretty->string, COLOR_STRING_VALUE);
1008                 }
1009                 print_escape_string(pretty, str);
1010                 if (pretty->use_colors) {
1011                         g_string_append(pretty->string, COLOR_RST);
1012                 }
1013                 return 0;
1014         }
1015         case BT_FIELD_CLASS_TYPE_STRUCTURE:
1016                 return print_struct(pretty, field, print_names, filter_fields,
1017                                 filter_array_len);
1018         case BT_FIELD_CLASS_TYPE_VARIANT:
1019                 return print_variant(pretty, field, print_names);
1020         case BT_FIELD_CLASS_TYPE_STATIC_ARRAY:
1021                 return print_array(pretty, field, print_names);
1022         case BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY:
1023                 return print_sequence(pretty, field, print_names);
1024         default:
1025                 // TODO: log instead
1026                 fprintf(pretty->err, "[error] Unknown type id: %d\n", (int) class_id);
1027                 return -1;
1028         }
1029 }
1030
1031 static
1032 int print_stream_packet_context(struct pretty_component *pretty,
1033                 const bt_event *event)
1034 {
1035         int ret = 0;
1036         const bt_packet *packet = NULL;
1037         const bt_field *main_field = NULL;
1038
1039         packet = bt_event_borrow_packet_const(event);
1040         if (!packet) {
1041                 ret = -1;
1042                 goto end;
1043         }
1044         main_field = bt_packet_borrow_context_field_const(packet);
1045         if (!main_field) {
1046                 goto end;
1047         }
1048         if (!pretty->start_line) {
1049                 g_string_append(pretty->string, ", ");
1050         }
1051         pretty->start_line = false;
1052         if (pretty->options.print_scope_field_names) {
1053                 print_name_equal(pretty, "stream.packet.context");
1054         }
1055         ret = print_field(pretty, main_field,
1056                         pretty->options.print_context_field_names,
1057                         stream_packet_context_quarks,
1058                         STREAM_PACKET_CONTEXT_QUARKS_LEN);
1059
1060 end:
1061         return ret;
1062 }
1063
1064 static
1065 int print_stream_event_context(struct pretty_component *pretty,
1066                 const bt_event *event)
1067 {
1068         int ret = 0;
1069         const bt_field *main_field = NULL;
1070
1071         main_field = bt_event_borrow_common_context_field_const(event);
1072         if (!main_field) {
1073                 goto end;
1074         }
1075         if (!pretty->start_line) {
1076                 g_string_append(pretty->string, ", ");
1077         }
1078         pretty->start_line = false;
1079         if (pretty->options.print_scope_field_names) {
1080                 print_name_equal(pretty, "stream.event.context");
1081         }
1082         ret = print_field(pretty, main_field,
1083                         pretty->options.print_context_field_names, NULL, 0);
1084
1085 end:
1086         return ret;
1087 }
1088
1089 static
1090 int print_event_context(struct pretty_component *pretty,
1091                 const bt_event *event)
1092 {
1093         int ret = 0;
1094         const bt_field *main_field = NULL;
1095
1096         main_field = bt_event_borrow_specific_context_field_const(event);
1097         if (!main_field) {
1098                 goto end;
1099         }
1100         if (!pretty->start_line) {
1101                 g_string_append(pretty->string, ", ");
1102         }
1103         pretty->start_line = false;
1104         if (pretty->options.print_scope_field_names) {
1105                 print_name_equal(pretty, "event.context");
1106         }
1107         ret = print_field(pretty, main_field,
1108                         pretty->options.print_context_field_names, NULL, 0);
1109
1110 end:
1111         return ret;
1112 }
1113
1114 static
1115 int print_event_payload(struct pretty_component *pretty,
1116                 const bt_event *event)
1117 {
1118         int ret = 0;
1119         const bt_field *main_field = NULL;
1120
1121         main_field = bt_event_borrow_payload_field_const(event);
1122         if (!main_field) {
1123                 goto end;
1124         }
1125         if (!pretty->start_line) {
1126                 g_string_append(pretty->string, ", ");
1127         }
1128         pretty->start_line = false;
1129         if (pretty->options.print_scope_field_names) {
1130                 print_name_equal(pretty, "event.fields");
1131         }
1132         ret = print_field(pretty, main_field,
1133                         pretty->options.print_payload_field_names, NULL, 0);
1134
1135 end:
1136         return ret;
1137 }
1138
1139 static
1140 int flush_buf(FILE *stream, struct pretty_component *pretty)
1141 {
1142         int ret = 0;
1143
1144         if (pretty->string->len == 0) {
1145                 goto end;
1146         }
1147
1148         if (fwrite(pretty->string->str, pretty->string->len, 1, stream) != 1) {
1149                 ret = -1;
1150         }
1151
1152 end:
1153         return ret;
1154 }
1155
1156 BT_HIDDEN
1157 int pretty_print_event(struct pretty_component *pretty,
1158                 const bt_message *event_msg)
1159 {
1160         int ret;
1161         const bt_event *event =
1162                 bt_message_event_borrow_event_const(event_msg);
1163
1164         BT_ASSERT(event);
1165         pretty->start_line = true;
1166         g_string_assign(pretty->string, "");
1167         ret = print_event_header(pretty, event_msg);
1168         if (ret != 0) {
1169                 goto end;
1170         }
1171
1172         ret = print_stream_packet_context(pretty, event);
1173         if (ret != 0) {
1174                 goto end;
1175         }
1176
1177         ret = print_stream_event_context(pretty, event);
1178         if (ret != 0) {
1179                 goto end;
1180         }
1181
1182         ret = print_event_context(pretty, event);
1183         if (ret != 0) {
1184                 goto end;
1185         }
1186
1187         ret = print_event_payload(pretty, event);
1188         if (ret != 0) {
1189                 goto end;
1190         }
1191
1192         g_string_append_c(pretty->string, '\n');
1193         if (flush_buf(pretty->out, pretty)) {
1194                 ret = -1;
1195                 goto end;
1196         }
1197
1198 end:
1199         return ret;
1200 }
1201
1202 static
1203 int print_discarded_elements_msg(struct pretty_component *pretty,
1204                 const bt_stream *stream,
1205                 const bt_clock_snapshot *begin_clock_snapshot,
1206                 const bt_clock_snapshot *end_clock_snapshot,
1207                 uint64_t count, const char *elem_type)
1208 {
1209         int ret = 0;
1210         const bt_stream_class *stream_class = NULL;
1211         const bt_trace *trace = NULL;
1212         const char *stream_name;
1213         const char *trace_name;
1214         bt_uuid trace_uuid;
1215         int64_t stream_class_id;
1216         int64_t stream_id;
1217         const char *init_msg;
1218
1219         /* Stream name */
1220         stream_name = bt_stream_get_name(stream);
1221         if (!stream_name) {
1222                 stream_name = "(unknown)";
1223         }
1224
1225         /* Stream class ID */
1226         stream_class = bt_stream_borrow_class_const(stream);
1227         BT_ASSERT(stream_class);
1228         stream_class_id = bt_stream_class_get_id(stream_class);
1229
1230         /* Stream ID */
1231         stream_id = bt_stream_get_id(stream);
1232
1233         /* Trace name */
1234         trace = bt_stream_borrow_trace_const(stream);
1235         BT_ASSERT(trace);
1236         trace_name = bt_trace_get_name(trace);
1237         if (!trace_name) {
1238                 trace_name = "(unknown)";
1239         }
1240
1241         /* Trace UUID */
1242         trace_uuid = bt_trace_get_uuid(trace);
1243
1244         /* Format message */
1245         g_string_assign(pretty->string, "");
1246
1247         if (count == UINT64_C(-1)) {
1248                 init_msg = "Tracer may have discarded";
1249         } else {
1250                 init_msg = "Tracer discarded";
1251         }
1252
1253         g_string_append_printf(pretty->string,
1254                 "%s%sWARNING%s%s: %s ",
1255                 bt_common_color_fg_yellow(),
1256                 bt_common_color_bold(),
1257                 bt_common_color_reset(),
1258                 bt_common_color_fg_yellow(), init_msg);
1259
1260         if (count == UINT64_C(-1)) {
1261                 g_string_append_printf(pretty->string, "%ss", elem_type);
1262         } else {
1263                 g_string_append_printf(pretty->string,
1264                         "%" PRIu64 " %s%s", count, elem_type,
1265                         count == 1 ? "" : "s");
1266         }
1267
1268         g_string_append_c(pretty->string, ' ');
1269
1270         if (begin_clock_snapshot && end_clock_snapshot) {
1271                 g_string_append(pretty->string, "between [");
1272                 print_timestamp_wall(pretty, begin_clock_snapshot, false);
1273                 g_string_append(pretty->string, "] and [");
1274                 print_timestamp_wall(pretty, end_clock_snapshot, false);
1275                 g_string_append(pretty->string, "]");
1276         } else {
1277                 g_string_append(pretty->string, "(unknown time range)");
1278         }
1279
1280         g_string_append_printf(pretty->string, " in trace \"%s\" ", trace_name);
1281
1282         if (trace_uuid) {
1283                 g_string_append_printf(pretty->string,
1284                         "(UUID: " BT_UUID_FMT ") ",
1285                         BT_UUID_FMT_VALUES(trace_uuid));
1286         } else {
1287                 g_string_append(pretty->string, "(no UUID) ");
1288         }
1289
1290         g_string_append_printf(pretty->string,
1291                 "within stream \"%s\" (stream class ID: %" PRIu64 ", ",
1292                 stream_name, stream_class_id);
1293
1294         if (stream_id >= 0) {
1295                 g_string_append_printf(pretty->string,
1296                         "stream ID: %" PRIu64, stream_id);
1297         } else {
1298                 g_string_append(pretty->string, "no stream ID");
1299         }
1300
1301         g_string_append_printf(pretty->string, ").%s\n",
1302                 bt_common_color_reset());
1303
1304         /*
1305          * Print to standard error stream to remain backward compatible
1306          * with Babeltrace 1.
1307          */
1308         if (flush_buf(stderr, pretty)) {
1309                 ret = -1;
1310         }
1311
1312         return ret;
1313 }
1314
1315 BT_HIDDEN
1316 int pretty_print_discarded_items(struct pretty_component *pretty,
1317                 const bt_message *msg)
1318 {
1319         const bt_clock_snapshot *begin = NULL;
1320         const bt_clock_snapshot *end = NULL;
1321         const bt_stream *stream;
1322         const bt_stream_class *stream_class;
1323         uint64_t count = UINT64_C(-1);
1324         const char *elem_type;
1325
1326         switch (bt_message_get_type(msg)) {
1327         case BT_MESSAGE_TYPE_DISCARDED_EVENTS:
1328                 stream = bt_message_discarded_events_borrow_stream_const(msg);
1329
1330                 if (bt_message_discarded_events_get_count(msg, &count) ==
1331                                 BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE) {
1332                         count = UINT64_C(-1);
1333                 }
1334
1335                 elem_type = "event";
1336                 break;
1337         case BT_MESSAGE_TYPE_DISCARDED_PACKETS:
1338                 stream = bt_message_discarded_packets_borrow_stream_const(msg);
1339
1340                 if (bt_message_discarded_packets_get_count(msg, &count) ==
1341                                 BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE) {
1342                         count = UINT64_C(-1);
1343                 }
1344
1345                 elem_type = "packet";
1346                 break;
1347         default:
1348                 abort();
1349         }
1350
1351         BT_ASSERT(stream);
1352         stream_class = bt_stream_borrow_class_const(stream);
1353
1354         switch (bt_message_get_type(msg)) {
1355         case BT_MESSAGE_TYPE_DISCARDED_EVENTS:
1356                 if (bt_stream_class_discarded_events_have_default_clock_snapshots(
1357                                 stream_class)) {
1358                         begin = bt_message_discarded_events_borrow_beginning_default_clock_snapshot_const(
1359                                 msg);
1360                         end = bt_message_discarded_events_borrow_end_default_clock_snapshot_const(
1361                                 msg);
1362                 }
1363
1364                 break;
1365         case BT_MESSAGE_TYPE_DISCARDED_PACKETS:
1366                 if (bt_stream_class_discarded_packets_have_default_clock_snapshots(
1367                                 stream_class)) {
1368                         begin = bt_message_discarded_packets_borrow_beginning_default_clock_snapshot_const(
1369                                 msg);
1370                         end = bt_message_discarded_packets_borrow_end_default_clock_snapshot_const(
1371                                 msg);
1372                 }
1373
1374                 break;
1375         default:
1376                 abort();
1377         }
1378
1379         print_discarded_elements_msg(pretty, stream, begin, end,
1380                 count, elem_type);
1381         return 0;
1382 }