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 <babeltrace2/bitfield-internal.h>
  28 #include <babeltrace2/common-internal.h>
  29 #include <babeltrace2/compat/time-internal.h>
  30 #include <babeltrace2/assert-internal.h>
  31 #include <inttypes.h>
  32 #include <ctype.h>
  33 #include "pretty.h"
  34
  35 #define NSEC_PER_SEC 1000000000LL
  36
  37 #define COLOR_NAME              BT_COMMON_COLOR_BOLD
  38 #define COLOR_FIELD_NAME        BT_COMMON_COLOR_FG_CYAN
  39 #define COLOR_RST               BT_COMMON_COLOR_RESET
  40 #define COLOR_STRING_VALUE      BT_COMMON_COLOR_BOLD
  41 #define COLOR_NUMBER_VALUE      BT_COMMON_COLOR_BOLD
  42 #define COLOR_ENUM_MAPPING_NAME BT_COMMON_COLOR_BOLD
  43 #define COLOR_UNKNOWN           BT_COMMON_COLOR_BOLD BT_COMMON_COLOR_FG_RED
  44 #define COLOR_EVENT_NAME        BT_COMMON_COLOR_BOLD BT_COMMON_COLOR_FG_MAGENTA
  45 #define COLOR_TIMESTAMP         BT_COMMON_COLOR_BOLD BT_COMMON_COLOR_FG_YELLOW
  46
  47 struct timestamp {
  48         int64_t real_timestamp; /* Relative to UNIX epoch. */
  49         uint64_t clock_snapshot;        /* In cycles. */
  50 };
  51
  52 static
  53 int print_field(struct pretty_component *pretty,
  54                 const bt_field *field, bool print_names,
  55                 GQuark *filters_fields, int filter_array_len);
  56
  57 static
  58 void print_name_equal(struct pretty_component *pretty, const char *name)
  59 {
  60         if (pretty->use_colors) {
  61                 g_string_append_printf(pretty->string, "%s%s%s = ", COLOR_NAME,
  62                         name, COLOR_RST);
  63         } else {
  64                 g_string_append_printf(pretty->string, "%s = ", name);
  65         }
  66 }
  67
  68 static
  69 void print_field_name_equal(struct pretty_component *pretty, const char *name)
  70 {
  71         if (pretty->use_colors) {
  72                 g_string_append_printf(pretty->string, "%s%s%s = ",
  73                         COLOR_FIELD_NAME, name, COLOR_RST);
  74         } else {
  75                 g_string_append_printf(pretty->string, "%s = ", name);
  76         }
  77 }
  78
  79 static
  80 void print_timestamp_cycles(struct pretty_component *pretty,
  81                 const bt_clock_snapshot *clock_snapshot, bool update_last)
  82 {
  83         uint64_t cycles;
  84
  85         cycles = bt_clock_snapshot_get_value(clock_snapshot);
  86         g_string_append_printf(pretty->string, "%020" PRIu64, cycles);
  87
  88         if (update_last) {
  89                 if (pretty->last_cycles_timestamp != -1ULL) {
  90                         pretty->delta_cycles = cycles - pretty->last_cycles_timestamp;
  91                 }
  92
  93                 pretty->last_cycles_timestamp = cycles;
  94         }
  95 }
  96
  97 static
  98 void print_timestamp_wall(struct pretty_component *pretty,
  99                 const bt_clock_snapshot *clock_snapshot, bool update_last)
 100 {
 101         int ret;
 102         int64_t ts_nsec = 0;    /* add configurable offset */
 103         int64_t ts_sec = 0;     /* add configurable offset */
 104         uint64_t ts_sec_abs, ts_nsec_abs;
 105         bool is_negative;
 106
 107         if (!clock_snapshot) {
 108                 g_string_append(pretty->string, "??:??:??.?????????");
 109                 return;
 110         }
 111
 112         ret = bt_clock_snapshot_get_ns_from_origin(clock_snapshot, &ts_nsec);
 113         if (ret) {
 114                 // TODO: log, this is unexpected
 115                 g_string_append(pretty->string, "Error");
 116                 return;
 117         }
 118
 119         if (update_last) {
 120                 if (pretty->last_real_timestamp != -1ULL) {
 121                         pretty->delta_real_timestamp = ts_nsec - pretty->last_real_timestamp;
 122                 }
 123
 124                 pretty->last_real_timestamp = ts_nsec;
 125         }
 126
 127         ts_sec += ts_nsec / NSEC_PER_SEC;
 128         ts_nsec = ts_nsec % NSEC_PER_SEC;
 129
 130         if (ts_sec >= 0 && ts_nsec >= 0) {
 131                 is_negative = false;
 132                 ts_sec_abs = ts_sec;
 133                 ts_nsec_abs = ts_nsec;
 134         } else if (ts_sec > 0 && ts_nsec < 0) {
 135                 is_negative = false;
 136                 ts_sec_abs = ts_sec - 1;
 137                 ts_nsec_abs = NSEC_PER_SEC + ts_nsec;
 138         } else if (ts_sec == 0 && ts_nsec < 0) {
 139                 is_negative = true;
 140                 ts_sec_abs = ts_sec;
 141                 ts_nsec_abs = -ts_nsec;
 142         } else if (ts_sec < 0 && ts_nsec > 0) {
 143                 is_negative = true;
 144                 ts_sec_abs = -(ts_sec + 1);
 145                 ts_nsec_abs = NSEC_PER_SEC - ts_nsec;
 146         } else if (ts_sec < 0 && ts_nsec == 0) {
 147                 is_negative = true;
 148                 ts_sec_abs = -ts_sec;
 149                 ts_nsec_abs = ts_nsec;
 150         } else {        /* (ts_sec < 0 && ts_nsec < 0) */
 151                 is_negative = true;
 152                 ts_sec_abs = -ts_sec;
 153                 ts_nsec_abs = -ts_nsec;
 154         }
 155
 156         if (!pretty->options.clock_seconds) {
 157                 struct tm tm;
 158                 time_t time_s = (time_t) ts_sec_abs;
 159
 160                 if (is_negative && !pretty->negative_timestamp_warning_done) {
 161                         // TODO: log instead
 162                         fprintf(stderr, "[warning] Fallback to [sec.ns] to print negative time value. Use --clock-seconds.\n");
 163                         pretty->negative_timestamp_warning_done = true;
 164                         goto seconds;
 165                 }
 166
 167                 if (!pretty->options.clock_gmt) {
 168                         struct tm *res;
 169
 170                         res = bt_localtime_r(&time_s, &tm);
 171                         if (!res) {
 172                                 // TODO: log instead
 173                                 fprintf(stderr, "[warning] Unable to get localtime.\n");
 174                                 goto seconds;
 175                         }
 176                 } else {
 177                         struct tm *res;
 178
 179                         res = bt_gmtime_r(&time_s, &tm);
 180                         if (!res) {
 181                                 // TODO: log instead
 182                                 fprintf(stderr, "[warning] Unable to get gmtime.\n");
 183                                 goto seconds;
 184                         }
 185                 }
 186                 if (pretty->options.clock_date) {
 187                         char timestr[26];
 188                         size_t res;
 189
 190                         /* Print date and time */
 191                         res = strftime(timestr, sizeof(timestr),
 192                                         "%Y-%m-%d ", &tm);
 193                         if (!res) {
 194                                 // TODO: log instead
 195                                 fprintf(stderr, "[warning] Unable to print ascii time.\n");
 196                                 goto seconds;
 197                         }
 198
 199                         g_string_append(pretty->string, timestr);
 200                 }
 201
 202                 /* Print time in HH:MM:SS.ns */
 203                 g_string_append_printf(pretty->string,
 204                         "%02d:%02d:%02d.%09" PRIu64, tm.tm_hour, tm.tm_min,
 205                         tm.tm_sec, ts_nsec_abs);
 206                 goto end;
 207         }
 208 seconds:
 209         g_string_append_printf(pretty->string, "%s%" PRId64 ".%09" PRIu64,
 210                 is_negative ? "-" : "", ts_sec_abs, ts_nsec_abs);
 211 end:
 212         return;
 213 }
 214
 215 static
 216 int print_event_timestamp(struct pretty_component *pretty,
 217                 const bt_message *event_msg, bool *start_line)
 218 {
 219         bool print_names = pretty->options.print_header_field_names;
 220         int ret = 0;
 221         const bt_clock_snapshot *clock_snapshot = NULL;
 222
 223         if (!bt_message_event_borrow_stream_class_default_clock_class_const(
 224                         event_msg)) {
 225                 /* No default clock class: skip the timestamp without an error */
 226                 goto end;
 227         }
 228
 229         clock_snapshot = bt_message_event_borrow_default_clock_snapshot_const(event_msg);
 230
 231         if (print_names) {
 232                 print_name_equal(pretty, "timestamp");
 233         } else {
 234                 g_string_append(pretty->string, "[");
 235         }
 236         if (pretty->use_colors) {
 237                 g_string_append(pretty->string, COLOR_TIMESTAMP);
 238         }
 239         if (pretty->options.print_timestamp_cycles) {
 240                 print_timestamp_cycles(pretty, clock_snapshot, true);
 241         } else {
 242                 print_timestamp_wall(pretty, clock_snapshot, true);
 243         }
 244         if (pretty->use_colors) {
 245                 g_string_append(pretty->string, COLOR_RST);
 246         }
 247
 248         if (!print_names)
 249                 g_string_append(pretty->string, "] ");
 250
 251         if (pretty->options.print_delta_field) {
 252                 if (print_names) {
 253                         g_string_append(pretty->string, ", ");
 254                         print_name_equal(pretty, "delta");
 255                 } else {
 256                         g_string_append(pretty->string, "(");
 257                 }
 258                 if (pretty->options.print_timestamp_cycles) {
 259                         if (pretty->delta_cycles == -1ULL) {
 260                                 g_string_append(pretty->string,
 261                                         "+??????????\?\?"); /* Not a trigraph. */
 262                         } else {
 263                                 g_string_append_printf(pretty->string,
 264                                         "+%012" PRIu64, pretty->delta_cycles);
 265                         }
 266                 } else {
 267                         if (pretty->delta_real_timestamp != -1ULL) {
 268                                 uint64_t delta_sec, delta_nsec, delta;
 269
 270                                 delta = pretty->delta_real_timestamp;
 271                                 delta_sec = delta / NSEC_PER_SEC;
 272                                 delta_nsec = delta % NSEC_PER_SEC;
 273                                 g_string_append_printf(pretty->string,
 274                                         "+%" PRIu64 ".%09" PRIu64,
 275                                         delta_sec, delta_nsec);
 276                         } else {
 277                                 g_string_append(pretty->string, "+?.?????????");
 278                         }
 279                 }
 280                 if (!print_names) {
 281                         g_string_append(pretty->string, ") ");
 282                 }
 283         }
 284         *start_line = !print_names;
 285
 286 end:
 287         return ret;
 288 }
 289
 290 static
 291 int print_event_header(struct pretty_component *pretty,
 292                 const bt_message *event_msg)
 293 {
 294         bool print_names = pretty->options.print_header_field_names;
 295         int ret = 0;
 296         const bt_event_class *event_class = NULL;
 297         const bt_stream_class *stream_class = NULL;
 298         const bt_trace_class *trace_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         int dom_print = 0;
 304         bt_property_availability prop_avail;
 305
 306         event_class = bt_event_borrow_class_const(event);
 307         stream_class = bt_event_class_borrow_stream_class_const(event_class);
 308         trace_class = bt_stream_class_borrow_trace_class_const(stream_class);
 309         packet = bt_event_borrow_packet_const(event);
 310         stream = bt_packet_borrow_stream_const(packet);
 311         trace = bt_stream_borrow_trace_const(stream);
 312         ret = print_event_timestamp(pretty, event_msg, &pretty->start_line);
 313         if (ret) {
 314                 goto end;
 315         }
 316         if (pretty->options.print_trace_field) {
 317                 const char *name;
 318
 319                 name = bt_trace_get_name(trace);
 320                 if (name) {
 321                         if (!pretty->start_line) {
 322                                 g_string_append(pretty->string, ", ");
 323                         }
 324                         if (print_names) {
 325                                 print_name_equal(pretty, "trace");
 326                         }
 327
 328                         g_string_append(pretty->string, name);
 329
 330                         if (print_names) {
 331                                 g_string_append(pretty->string, ", ");
 332                         }
 333                 }
 334         }
 335         if (pretty->options.print_trace_hostname_field) {
 336                 const bt_value *hostname_str;
 337
 338                 hostname_str = bt_trace_class_borrow_environment_entry_value_by_name_const(
 339                         trace_class, "hostname");
 340                 if (hostname_str) {
 341                         const char *str;
 342
 343                         if (!pretty->start_line) {
 344                                 g_string_append(pretty->string, ", ");
 345                         }
 346                         if (print_names) {
 347                                 print_name_equal(pretty, "trace:hostname");
 348                         }
 349                         str = bt_value_string_get(hostname_str);
 350                         g_string_append(pretty->string, str);
 351                         dom_print = 1;
 352                 }
 353         }
 354         if (pretty->options.print_trace_domain_field) {
 355                 const bt_value *domain_str;
 356
 357                 domain_str = bt_trace_class_borrow_environment_entry_value_by_name_const(
 358                         trace_class, "domain");
 359                 if (domain_str) {
 360                         const char *str;
 361
 362                         if (!pretty->start_line) {
 363                                 g_string_append(pretty->string, ", ");
 364                         }
 365                         if (print_names) {
 366                                 print_name_equal(pretty, "trace:domain");
 367                         } else if (dom_print) {
 368                                 g_string_append(pretty->string, ":");
 369                         }
 370                         str = bt_value_string_get(domain_str);
 371                         g_string_append(pretty->string, str);
 372                         dom_print = 1;
 373                 }
 374         }
 375         if (pretty->options.print_trace_procname_field) {
 376                 const bt_value *procname_str;
 377
 378                 procname_str = bt_trace_class_borrow_environment_entry_value_by_name_const(
 379                         trace_class, "procname");
 380                 if (procname_str) {
 381                         const char *str;
 382
 383                         if (!pretty->start_line) {
 384                                 g_string_append(pretty->string, ", ");
 385                         }
 386                         if (print_names) {
 387                                 print_name_equal(pretty, "trace:procname");
 388                         } else if (dom_print) {
 389                                 g_string_append(pretty->string, ":");
 390                         }
 391                         str = bt_value_string_get(procname_str);
 392                         g_string_append(pretty->string, str);
 393                         dom_print = 1;
 394                 }
 395         }
 396         if (pretty->options.print_trace_vpid_field) {
 397                 const bt_value *vpid_value;
 398
 399                 vpid_value = bt_trace_class_borrow_environment_entry_value_by_name_const(
 400                         trace_class, "vpid");
 401                 if (vpid_value) {
 402                         int64_t value;
 403
 404                         if (!pretty->start_line) {
 405                                 g_string_append(pretty->string, ", ");
 406                         }
 407                         if (print_names) {
 408                                 print_name_equal(pretty, "trace:vpid");
 409                         } else if (dom_print) {
 410                                 g_string_append(pretty->string, ":");
 411                         }
 412                         value = bt_value_signed_integer_get(vpid_value);
 413                         g_string_append_printf(pretty->string,
 414                                 "(%" PRId64 ")", value);
 415                         dom_print = 1;
 416                 }
 417         }
 418         if (pretty->options.print_loglevel_field) {
 419                 static const char *log_level_names[] = {
 420                         [ BT_EVENT_CLASS_LOG_LEVEL_EMERGENCY ] = "TRACE_EMERG",
 421                         [ BT_EVENT_CLASS_LOG_LEVEL_ALERT ] = "TRACE_ALERT",
 422                         [ BT_EVENT_CLASS_LOG_LEVEL_CRITICAL ] = "TRACE_CRIT",
 423                         [ BT_EVENT_CLASS_LOG_LEVEL_ERROR ] = "TRACE_ERR",
 424                         [ BT_EVENT_CLASS_LOG_LEVEL_WARNING ] = "TRACE_WARNING",
 425                         [ BT_EVENT_CLASS_LOG_LEVEL_NOTICE ] = "TRACE_NOTICE",
 426                         [ BT_EVENT_CLASS_LOG_LEVEL_INFO ] = "TRACE_INFO",
 427                         [ BT_EVENT_CLASS_LOG_LEVEL_DEBUG_SYSTEM ] = "TRACE_DEBUG_SYSTEM",
 428                         [ BT_EVENT_CLASS_LOG_LEVEL_DEBUG_PROGRAM ] = "TRACE_DEBUG_PROGRAM",
 429                         [ BT_EVENT_CLASS_LOG_LEVEL_DEBUG_PROCESS ] = "TRACE_DEBUG_PROCESS",
 430                         [ BT_EVENT_CLASS_LOG_LEVEL_DEBUG_MODULE ] = "TRACE_DEBUG_MODULE",
 431                         [ BT_EVENT_CLASS_LOG_LEVEL_DEBUG_UNIT ] = "TRACE_DEBUG_UNIT",
 432                         [ BT_EVENT_CLASS_LOG_LEVEL_DEBUG_FUNCTION ] = "TRACE_DEBUG_FUNCTION",
 433                         [ BT_EVENT_CLASS_LOG_LEVEL_DEBUG_LINE ] = "TRACE_DEBUG_LINE",
 434                         [ BT_EVENT_CLASS_LOG_LEVEL_DEBUG ] = "TRACE_DEBUG",
 435                 };
 436                 bt_event_class_log_level log_level;
 437                 const char *log_level_str = NULL;
 438
 439                 prop_avail = bt_event_class_get_log_level(event_class,
 440                         &log_level);
 441                 if (prop_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) {
 442                         log_level_str = log_level_names[log_level];
 443                         BT_ASSERT(log_level_str);
 444
 445                         if (!pretty->start_line) {
 446                                 g_string_append(pretty->string, ", ");
 447                         }
 448                         if (print_names) {
 449                                 print_name_equal(pretty, "loglevel");
 450                         } else if (dom_print) {
 451                                 g_string_append(pretty->string, ":");
 452                         }
 453
 454                         g_string_append(pretty->string, log_level_str);
 455                         g_string_append_printf(
 456                                 pretty->string, " (%d)", (int) log_level);
 457                         dom_print = 1;
 458                 }
 459         }
 460         if (pretty->options.print_emf_field) {
 461                 const char *uri_str;
 462
 463                 uri_str = bt_event_class_get_emf_uri(event_class);
 464                 if (uri_str) {
 465                         if (!pretty->start_line) {
 466                                 g_string_append(pretty->string, ", ");
 467                         }
 468                         if (print_names) {
 469                                 print_name_equal(pretty, "model.emf.uri");
 470                         } else if (dom_print) {
 471                                 g_string_append(pretty->string, ":");
 472                         }
 473
 474                         g_string_append(pretty->string, uri_str);
 475                         dom_print = 1;
 476                 }
 477         }
 478         if (dom_print && !print_names) {
 479                 g_string_append(pretty->string, " ");
 480         }
 481         if (!pretty->start_line) {
 482                 g_string_append(pretty->string, ", ");
 483         }
 484         pretty->start_line = true;
 485         if (print_names) {
 486                 print_name_equal(pretty, "name");
 487         }
 488         if (pretty->use_colors) {
 489                 g_string_append(pretty->string, COLOR_EVENT_NAME);
 490         }
 491         g_string_append(pretty->string, bt_event_class_get_name(event_class));
 492         if (pretty->use_colors) {
 493                 g_string_append(pretty->string, COLOR_RST);
 494         }
 495         if (!print_names) {
 496                 g_string_append(pretty->string, ": ");
 497         } else {
 498                 g_string_append(pretty->string, ", ");
 499         }
 500
 501 end:
 502         return ret;
 503 }
 504
 505 static
 506 int print_integer(struct pretty_component *pretty,
 507                 const bt_field *field)
 508 {
 509         int ret = 0;
 510         bt_field_class_integer_preferred_display_base base;
 511         const bt_field_class *int_fc;
 512         union {
 513                 uint64_t u;
 514                 int64_t s;
 515         } v;
 516         bool rst_color = false;
 517         bt_field_class_type ft_type;
 518
 519         int_fc = bt_field_borrow_class_const(field);
 520         BT_ASSERT(int_fc);
 521         ft_type = bt_field_get_class_type(field);
 522         if (ft_type == BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER ||
 523                         ft_type == BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION) {
 524                 v.u = bt_field_unsigned_integer_get_value(field);
 525         } else {
 526                 v.s = bt_field_signed_integer_get_value(field);
 527         }
 528
 529         if (pretty->use_colors) {
 530                 g_string_append(pretty->string, COLOR_NUMBER_VALUE);
 531                 rst_color = true;
 532         }
 533
 534         base = bt_field_class_integer_get_preferred_display_base(int_fc);
 535         switch (base) {
 536         case BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_BINARY:
 537         {
 538                 int bitnr, len;
 539
 540                 len = bt_field_class_integer_get_field_value_range(int_fc);
 541                 g_string_append(pretty->string, "0b");
 542                 _bt_safe_lshift(v.u, 64 - len);
 543                 for (bitnr = 0; bitnr < len; bitnr++) {
 544                         g_string_append_printf(pretty->string, "%u", (v.u & (1ULL << 63)) ? 1 : 0);
 545                         _bt_safe_lshift(v.u, 1);
 546                 }
 547                 break;
 548         }
 549         case BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_OCTAL:
 550         {
 551                 if (ft_type == BT_FIELD_CLASS_TYPE_SIGNED_INTEGER ||
 552                                 ft_type == BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION) {
 553                         int len;
 554
 555                         len = bt_field_class_integer_get_field_value_range(
 556                                 int_fc);
 557                         if (len < 64) {
 558                                 size_t rounded_len;
 559
 560                                 BT_ASSERT(len != 0);
 561                                 /* Round length to the nearest 3-bit */
 562                                 rounded_len = (((len - 1) / 3) + 1) * 3;
 563                                 v.u &= ((uint64_t) 1 << rounded_len) - 1;
 564                         }
 565                 }
 566
 567                 g_string_append_printf(pretty->string, "0%" PRIo64, v.u);
 568                 break;
 569         }
 570         case BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_DECIMAL:
 571                 if (ft_type == BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER ||
 572                                 ft_type == BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION) {
 573                         g_string_append_printf(pretty->string, "%" PRIu64, v.u);
 574                 } else {
 575                         g_string_append_printf(pretty->string, "%" PRId64, v.s);
 576                 }
 577                 break;
 578         case BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_HEXADECIMAL:
 579         {
 580                 int len;
 581
 582                 len = bt_field_class_integer_get_field_value_range(int_fc);
 583                 if (len < 64) {
 584                         /* Round length to the nearest nibble */
 585                         uint8_t rounded_len = ((len + 3) & ~0x3);
 586
 587                         v.u &= ((uint64_t) 1 << rounded_len) - 1;
 588                 }
 589
 590                 g_string_append_printf(pretty->string, "0x%" PRIX64, v.u);
 591                 break;
 592         }
 593         default:
 594                 ret = -1;
 595                 goto end;
 596         }
 597 end:
 598         if (rst_color) {
 599                 g_string_append(pretty->string, COLOR_RST);
 600         }
 601         return ret;
 602 }
 603
 604 static
 605 void print_escape_string(struct pretty_component *pretty, const char *str)
 606 {
 607         int i;
 608
 609         g_string_append_c(pretty->string, '"');
 610
 611         for (i = 0; i < strlen(str); i++) {
 612                 /* Escape sequences not recognized by iscntrl(). */
 613                 switch (str[i]) {
 614                 case '\\':
 615                         g_string_append(pretty->string, "\\\\");
 616                         continue;
 617                 case '\'':
 618                         g_string_append(pretty->string, "\\\'");
 619                         continue;
 620                 case '\"':
 621                         g_string_append(pretty->string, "\\\"");
 622                         continue;
 623                 case '\?':
 624                         g_string_append(pretty->string, "\\\?");
 625                         continue;
 626                 }
 627
 628                 /* Standard characters. */
 629                 if (!iscntrl(str[i])) {
 630                         g_string_append_c(pretty->string, str[i]);
 631                         continue;
 632                 }
 633
 634                 switch (str[i]) {
 635                 case '\0':
 636                         g_string_append(pretty->string, "\\0");
 637                         break;
 638                 case '\a':
 639                         g_string_append(pretty->string, "\\a");
 640                         break;
 641                 case '\b':
 642                         g_string_append(pretty->string, "\\b");
 643                         break;
 644                 case '\e':
 645                         g_string_append(pretty->string, "\\e");
 646                         break;
 647                 case '\f':
 648                         g_string_append(pretty->string, "\\f");
 649                         break;
 650                 case '\n':
 651                         g_string_append(pretty->string, "\\n");
 652                         break;
 653                 case '\r':
 654                         g_string_append(pretty->string, "\\r");
 655                         break;
 656                 case '\t':
 657                         g_string_append(pretty->string, "\\t");
 658                         break;
 659                 case '\v':
 660                         g_string_append(pretty->string, "\\v");
 661                         break;
 662                 default:
 663                         /* Unhandled control-sequence, print as hex. */
 664                         g_string_append_printf(pretty->string, "\\x%02x", str[i]);
 665                         break;
 666                 }
 667         }
 668
 669         g_string_append_c(pretty->string, '"');
 670 }
 671
 672 static
 673 int print_enum(struct pretty_component *pretty,
 674                 const bt_field *field)
 675 {
 676         int ret = 0;
 677         const bt_field_class *enumeration_field_class = NULL;
 678         bt_field_class_enumeration_mapping_label_array label_array;
 679         uint64_t label_count;
 680         uint64_t i;
 681
 682         enumeration_field_class = bt_field_borrow_class_const(field);
 683         if (!enumeration_field_class) {
 684                 ret = -1;
 685                 goto end;
 686         }
 687
 688         switch (bt_field_get_class_type(field)) {
 689         case BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION:
 690                 ret = bt_field_unsigned_enumeration_get_mapping_labels(field,
 691                         &label_array, &label_count);
 692                 break;
 693         case BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION:
 694                 ret = bt_field_signed_enumeration_get_mapping_labels(field,
 695                         &label_array, &label_count);
 696                 break;
 697         default:
 698                 abort();
 699         }
 700
 701         if (ret) {
 702                 ret = -1;
 703                 goto end;
 704         }
 705
 706         g_string_append(pretty->string, "( ");
 707         if (label_count == 0) {
 708                 if (pretty->use_colors) {
 709                         g_string_append(pretty->string, COLOR_UNKNOWN);
 710                 }
 711                 g_string_append(pretty->string, "<unknown>");
 712                 if (pretty->use_colors) {
 713                         g_string_append(pretty->string, COLOR_RST);
 714                 }
 715                 goto skip_loop;
 716         }
 717         for (i = 0; i < label_count; i++) {
 718                 const char *mapping_name = label_array[i];
 719
 720                 if (i != 0) {
 721                         g_string_append(pretty->string, ", ");
 722                 }
 723                 if (pretty->use_colors) {
 724                         g_string_append(pretty->string, COLOR_ENUM_MAPPING_NAME);
 725                 }
 726                 print_escape_string(pretty, mapping_name);
 727                 if (pretty->use_colors) {
 728                         g_string_append(pretty->string, COLOR_RST);
 729                 }
 730         }
 731 skip_loop:
 732         g_string_append(pretty->string, " : container = ");
 733         ret = print_integer(pretty, field);
 734         if (ret != 0) {
 735                 goto end;
 736         }
 737         g_string_append(pretty->string, " )");
 738 end:
 739         return ret;
 740 }
 741
 742 static
 743 int filter_field_name(struct pretty_component *pretty, const char *field_name,
 744                 GQuark *filter_fields, int filter_array_len)
 745 {
 746         int i;
 747         GQuark field_quark = g_quark_try_string(field_name);
 748
 749         if (!field_quark || pretty->options.verbose) {
 750                 return 1;
 751         }
 752
 753         for (i = 0; i < filter_array_len; i++) {
 754                 if (field_quark == filter_fields[i]) {
 755                         return 0;
 756                 }
 757         }
 758         return 1;
 759 }
 760
 761 static
 762 int print_struct_field(struct pretty_component *pretty,
 763                 const bt_field *_struct,
 764                 const bt_field_class *struct_class,
 765                 uint64_t i, bool print_names, uint64_t *nr_printed_fields,
 766                 GQuark *filter_fields, int filter_array_len)
 767 {
 768         int ret = 0;
 769         const char *field_name;
 770         const bt_field *field = NULL;
 771         const bt_field_class_structure_member *member;
 772
 773         field = bt_field_structure_borrow_member_field_by_index_const(_struct, i);
 774         if (!field) {
 775                 ret = -1;
 776                 goto end;
 777         }
 778
 779         member = bt_field_class_structure_borrow_member_by_index_const(
 780                 struct_class, i);
 781         field_name = bt_field_class_structure_member_get_name(member);
 782
 783         if (filter_fields && !filter_field_name(pretty, field_name,
 784                                 filter_fields, filter_array_len)) {
 785                 ret = 0;
 786                 goto end;
 787         }
 788
 789         if (*nr_printed_fields > 0) {
 790                 g_string_append(pretty->string, ", ");
 791         } else {
 792                 g_string_append(pretty->string, " ");
 793         }
 794         if (print_names) {
 795                 print_field_name_equal(pretty, field_name);
 796         }
 797         ret = print_field(pretty, field, print_names, NULL, 0);
 798         *nr_printed_fields += 1;
 799
 800 end:
 801         return ret;
 802 }
 803
 804 static
 805 int print_struct(struct pretty_component *pretty,
 806                 const bt_field *_struct, bool print_names,
 807                 GQuark *filter_fields, int filter_array_len)
 808 {
 809         int ret = 0;
 810         const bt_field_class *struct_class = NULL;
 811         uint64_t nr_fields, i, nr_printed_fields;
 812
 813         struct_class = bt_field_borrow_class_const(_struct);
 814         if (!struct_class) {
 815                 ret = -1;
 816                 goto end;
 817         }
 818
 819         nr_fields = bt_field_class_structure_get_member_count(struct_class);
 820
 821         g_string_append(pretty->string, "{");
 822         pretty->depth++;
 823         nr_printed_fields = 0;
 824         for (i = 0; i < nr_fields; i++) {
 825                 ret = print_struct_field(pretty, _struct, struct_class, i,
 826                                 print_names, &nr_printed_fields, filter_fields,
 827                                 filter_array_len);
 828                 if (ret != 0) {
 829                         goto end;
 830                 }
 831         }
 832         pretty->depth--;
 833         g_string_append(pretty->string, " }");
 834
 835 end:
 836         return ret;
 837 }
 838
 839 static
 840 int print_array_field(struct pretty_component *pretty,
 841                 const bt_field *array, uint64_t i, bool print_names)
 842 {
 843         const bt_field *field = NULL;
 844
 845         if (i != 0) {
 846                 g_string_append(pretty->string, ", ");
 847         } else {
 848                 g_string_append(pretty->string, " ");
 849         }
 850         if (print_names) {
 851                 g_string_append_printf(pretty->string, "[%" PRIu64 "] = ", i);
 852         }
 853
 854         field = bt_field_array_borrow_element_field_by_index_const(array, i);
 855         BT_ASSERT(field);
 856         return print_field(pretty, field, print_names, NULL, 0);
 857 }
 858
 859 static
 860 int print_array(struct pretty_component *pretty,
 861                 const bt_field *array, bool print_names)
 862 {
 863         int ret = 0;
 864         const bt_field_class *array_class = NULL;
 865         uint64_t len;
 866         uint64_t i;
 867
 868         array_class = bt_field_borrow_class_const(array);
 869         if (!array_class) {
 870                 ret = -1;
 871                 goto end;
 872         }
 873         len = bt_field_array_get_length(array);
 874         g_string_append(pretty->string, "[");
 875         pretty->depth++;
 876         for (i = 0; i < len; i++) {
 877                 ret = print_array_field(pretty, array, i, print_names);
 878                 if (ret != 0) {
 879                         goto end;
 880                 }
 881         }
 882         pretty->depth--;
 883         g_string_append(pretty->string, " ]");
 884
 885 end:
 886         return ret;
 887 }
 888
 889 static
 890 int print_sequence_field(struct pretty_component *pretty,
 891                 const bt_field *seq, uint64_t i, bool print_names)
 892 {
 893         const bt_field *field = NULL;
 894
 895         if (i != 0) {
 896                 g_string_append(pretty->string, ", ");
 897         } else {
 898                 g_string_append(pretty->string, " ");
 899         }
 900         if (print_names) {
 901                 g_string_append_printf(pretty->string, "[%" PRIu64 "] = ", i);
 902         }
 903
 904         field = bt_field_array_borrow_element_field_by_index_const(seq, i);
 905         BT_ASSERT(field);
 906         return print_field(pretty, field, print_names, NULL, 0);
 907 }
 908
 909 static
 910 int print_sequence(struct pretty_component *pretty,
 911                 const bt_field *seq, bool print_names)
 912 {
 913         int ret = 0;
 914         uint64_t len;
 915         uint64_t i;
 916
 917         len = bt_field_array_get_length(seq);
 918         g_string_append(pretty->string, "[");
 919
 920         pretty->depth++;
 921         for (i = 0; i < len; i++) {
 922                 ret = print_sequence_field(pretty, seq, i, print_names);
 923                 if (ret != 0) {
 924                         goto end;
 925                 }
 926         }
 927         pretty->depth--;
 928         g_string_append(pretty->string, " ]");
 929
 930 end:
 931         return ret;
 932 }
 933
 934 static
 935 int print_variant(struct pretty_component *pretty,
 936                 const bt_field *variant, bool print_names)
 937 {
 938         int ret = 0;
 939         const bt_field *field = NULL;
 940
 941         field = bt_field_variant_borrow_selected_option_field_const(variant);
 942         BT_ASSERT(field);
 943         g_string_append(pretty->string, "{ ");
 944         pretty->depth++;
 945         if (print_names) {
 946                 // TODO: find tag's name using field path
 947                 // print_field_name_equal(pretty, tag_choice);
 948         }
 949         ret = print_field(pretty, field, print_names, NULL, 0);
 950         if (ret != 0) {
 951                 goto end;
 952         }
 953         pretty->depth--;
 954         g_string_append(pretty->string, " }");
 955
 956 end:
 957         return ret;
 958 }
 959
 960 static
 961 int print_field(struct pretty_component *pretty,
 962                 const bt_field *field, bool print_names,
 963                 GQuark *filter_fields, int filter_array_len)
 964 {
 965         bt_field_class_type class_id;
 966
 967         class_id = bt_field_get_class_type(field);
 968         switch (class_id) {
 969         case BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER:
 970         case BT_FIELD_CLASS_TYPE_SIGNED_INTEGER:
 971                 return print_integer(pretty, field);
 972         case BT_FIELD_CLASS_TYPE_REAL:
 973         {
 974                 double v;
 975
 976                 v = bt_field_real_get_value(field);
 977                 if (pretty->use_colors) {
 978                         g_string_append(pretty->string, COLOR_NUMBER_VALUE);
 979                 }
 980                 g_string_append_printf(pretty->string, "%g", v);
 981                 if (pretty->use_colors) {
 982                         g_string_append(pretty->string, COLOR_RST);
 983                 }
 984                 return 0;
 985         }
 986         case BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION:
 987         case BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION:
 988                 return print_enum(pretty, field);
 989         case BT_FIELD_CLASS_TYPE_STRING:
 990         {
 991                 const char *str;
 992
 993                 str = bt_field_string_get_value(field);
 994                 if (!str) {
 995                         return -1;
 996                 }
 997
 998                 if (pretty->use_colors) {
 999                         g_string_append(pretty->string, COLOR_STRING_VALUE);
1000                 }
1001                 print_escape_string(pretty, str);
1002                 if (pretty->use_colors) {
1003                         g_string_append(pretty->string, COLOR_RST);
1004                 }
1005                 return 0;
1006         }
1007         case BT_FIELD_CLASS_TYPE_STRUCTURE:
1008                 return print_struct(pretty, field, print_names, filter_fields,
1009                                 filter_array_len);
1010         case BT_FIELD_CLASS_TYPE_VARIANT:
1011                 return print_variant(pretty, field, print_names);
1012         case BT_FIELD_CLASS_TYPE_STATIC_ARRAY:
1013                 return print_array(pretty, field, print_names);
1014         case BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY:
1015                 return print_sequence(pretty, field, print_names);
1016         default:
1017                 // TODO: log instead
1018                 fprintf(pretty->err, "[error] Unknown type id: %d\n", (int) class_id);
1019                 return -1;
1020         }
1021 }
1022
1023 static
1024 int print_stream_packet_context(struct pretty_component *pretty,
1025                 const bt_event *event)
1026 {
1027         int ret = 0;
1028         const bt_packet *packet = NULL;
1029         const bt_field *main_field = NULL;
1030
1031         packet = bt_event_borrow_packet_const(event);
1032         if (!packet) {
1033                 ret = -1;
1034                 goto end;
1035         }
1036         main_field = bt_packet_borrow_context_field_const(packet);
1037         if (!main_field) {
1038                 goto end;
1039         }
1040         if (!pretty->start_line) {
1041                 g_string_append(pretty->string, ", ");
1042         }
1043         pretty->start_line = false;
1044         if (pretty->options.print_scope_field_names) {
1045                 print_name_equal(pretty, "stream.packet.context");
1046         }
1047         ret = print_field(pretty, main_field,
1048                         pretty->options.print_context_field_names,
1049                         stream_packet_context_quarks,
1050                         STREAM_PACKET_CONTEXT_QUARKS_LEN);
1051
1052 end:
1053         return ret;
1054 }
1055
1056 static
1057 int print_stream_event_context(struct pretty_component *pretty,
1058                 const bt_event *event)
1059 {
1060         int ret = 0;
1061         const bt_field *main_field = NULL;
1062
1063         main_field = bt_event_borrow_common_context_field_const(event);
1064         if (!main_field) {
1065                 goto end;
1066         }
1067         if (!pretty->start_line) {
1068                 g_string_append(pretty->string, ", ");
1069         }
1070         pretty->start_line = false;
1071         if (pretty->options.print_scope_field_names) {
1072                 print_name_equal(pretty, "stream.event.context");
1073         }
1074         ret = print_field(pretty, main_field,
1075                         pretty->options.print_context_field_names, NULL, 0);
1076
1077 end:
1078         return ret;
1079 }
1080
1081 static
1082 int print_event_context(struct pretty_component *pretty,
1083                 const bt_event *event)
1084 {
1085         int ret = 0;
1086         const bt_field *main_field = NULL;
1087
1088         main_field = bt_event_borrow_specific_context_field_const(event);
1089         if (!main_field) {
1090                 goto end;
1091         }
1092         if (!pretty->start_line) {
1093                 g_string_append(pretty->string, ", ");
1094         }
1095         pretty->start_line = false;
1096         if (pretty->options.print_scope_field_names) {
1097                 print_name_equal(pretty, "event.context");
1098         }
1099         ret = print_field(pretty, main_field,
1100                         pretty->options.print_context_field_names, NULL, 0);
1101
1102 end:
1103         return ret;
1104 }
1105
1106 static
1107 int print_event_payload(struct pretty_component *pretty,
1108                 const bt_event *event)
1109 {
1110         int ret = 0;
1111         const bt_field *main_field = NULL;
1112
1113         main_field = bt_event_borrow_payload_field_const(event);
1114         if (!main_field) {
1115                 goto end;
1116         }
1117         if (!pretty->start_line) {
1118                 g_string_append(pretty->string, ", ");
1119         }
1120         pretty->start_line = false;
1121         if (pretty->options.print_scope_field_names) {
1122                 print_name_equal(pretty, "event.fields");
1123         }
1124         ret = print_field(pretty, main_field,
1125                         pretty->options.print_payload_field_names, NULL, 0);
1126
1127 end:
1128         return ret;
1129 }
1130
1131 static
1132 int flush_buf(FILE *stream, struct pretty_component *pretty)
1133 {
1134         int ret = 0;
1135
1136         if (pretty->string->len == 0) {
1137                 goto end;
1138         }
1139
1140         if (fwrite(pretty->string->str, pretty->string->len, 1, stream) != 1) {
1141                 ret = -1;
1142         }
1143
1144 end:
1145         return ret;
1146 }
1147
1148 BT_HIDDEN
1149 int pretty_print_event(struct pretty_component *pretty,
1150                 const bt_message *event_msg)
1151 {
1152         int ret;
1153         const bt_event *event =
1154                 bt_message_event_borrow_event_const(event_msg);
1155
1156         BT_ASSERT(event);
1157         pretty->start_line = true;
1158         g_string_assign(pretty->string, "");
1159         ret = print_event_header(pretty, event_msg);
1160         if (ret != 0) {
1161                 goto end;
1162         }
1163
1164         ret = print_stream_packet_context(pretty, event);
1165         if (ret != 0) {
1166                 goto end;
1167         }
1168
1169         ret = print_stream_event_context(pretty, event);
1170         if (ret != 0) {
1171                 goto end;
1172         }
1173
1174         ret = print_event_context(pretty, event);
1175         if (ret != 0) {
1176                 goto end;
1177         }
1178
1179         ret = print_event_payload(pretty, event);
1180         if (ret != 0) {
1181                 goto end;
1182         }
1183
1184         g_string_append_c(pretty->string, '\n');
1185         if (flush_buf(pretty->out, pretty)) {
1186                 ret = -1;
1187                 goto end;
1188         }
1189
1190 end:
1191         return ret;
1192 }
1193
1194 static
1195 int print_discarded_elements_msg(struct pretty_component *pretty,
1196                 const bt_stream *stream,
1197                 const bt_clock_snapshot *begin_clock_snapshot,
1198                 const bt_clock_snapshot *end_clock_snapshot,
1199                 uint64_t count, const char *elem_type)
1200 {
1201         int ret = 0;
1202         const bt_stream_class *stream_class = NULL;
1203         const bt_trace *trace = NULL;
1204         const char *stream_name;
1205         const char *trace_name;
1206         bt_uuid trace_uuid;
1207         int64_t stream_class_id;
1208         int64_t stream_id;
1209         const char *init_msg;
1210
1211         /* Stream name */
1212         stream_name = bt_stream_get_name(stream);
1213         if (!stream_name) {
1214                 stream_name = "(unknown)";
1215         }
1216
1217         /* Stream class ID */
1218         stream_class = bt_stream_borrow_class_const(stream);
1219         BT_ASSERT(stream_class);
1220         stream_class_id = bt_stream_class_get_id(stream_class);
1221
1222         /* Stream ID */
1223         stream_id = bt_stream_get_id(stream);
1224
1225         /* Trace name */
1226         trace = bt_stream_borrow_trace_const(stream);
1227         BT_ASSERT(trace);
1228         trace_name = bt_trace_get_name(trace);
1229         if (!trace_name) {
1230                 trace_name = "(unknown)";
1231         }
1232
1233         /* Trace UUID */
1234         trace_uuid = bt_trace_class_get_uuid(
1235                 bt_trace_borrow_class_const(trace));
1236
1237         /* Format message */
1238         g_string_assign(pretty->string, "");
1239
1240         if (count == UINT64_C(-1)) {
1241                 init_msg = "Tracer may have discarded";
1242         } else {
1243                 init_msg = "Tracer discarded";
1244         }
1245
1246         g_string_append_printf(pretty->string,
1247                 "%s%sWARNING%s%s: %s ",
1248                 bt_common_color_fg_yellow(),
1249                 bt_common_color_bold(),
1250                 bt_common_color_reset(),
1251                 bt_common_color_fg_yellow(), init_msg);
1252
1253         if (count == UINT64_C(-1)) {
1254                 g_string_append_printf(pretty->string, "%ss", elem_type);
1255         } else {
1256                 g_string_append_printf(pretty->string,
1257                         "%" PRIu64 " %s%s", count, elem_type,
1258                         count == 1 ? "" : "s");
1259         }
1260
1261         g_string_append_c(pretty->string, ' ');
1262
1263         if (begin_clock_snapshot && end_clock_snapshot) {
1264                 g_string_append(pretty->string, "between [");
1265                 print_timestamp_wall(pretty, begin_clock_snapshot, false);
1266                 g_string_append(pretty->string, "] and [");
1267                 print_timestamp_wall(pretty, end_clock_snapshot, false);
1268                 g_string_append(pretty->string, "]");
1269         } else {
1270                 g_string_append(pretty->string, "(unknown time range)");
1271         }
1272
1273         g_string_append_printf(pretty->string, " in trace \"%s\" ", trace_name);
1274
1275         if (trace_uuid) {
1276                 g_string_append_printf(pretty->string,
1277                         "(UUID: %02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x) ",
1278                         trace_uuid[0],
1279                         trace_uuid[1],
1280                         trace_uuid[2],
1281                         trace_uuid[3],
1282                         trace_uuid[4],
1283                         trace_uuid[5],
1284                         trace_uuid[6],
1285                         trace_uuid[7],
1286                         trace_uuid[8],
1287                         trace_uuid[9],
1288                         trace_uuid[10],
1289                         trace_uuid[11],
1290                         trace_uuid[12],
1291                         trace_uuid[13],
1292                         trace_uuid[14],
1293                         trace_uuid[15]);
1294         } else {
1295                 g_string_append(pretty->string, "(no UUID) ");
1296         }
1297
1298         g_string_append_printf(pretty->string,
1299                 "within stream \"%s\" (stream class ID: %" PRIu64 ", ",
1300                 stream_name, stream_class_id);
1301
1302         if (stream_id >= 0) {
1303                 g_string_append_printf(pretty->string,
1304                         "stream ID: %" PRIu64, stream_id);
1305         } else {
1306                 g_string_append(pretty->string, "no stream ID");
1307         }
1308
1309         g_string_append_printf(pretty->string, ").%s\n",
1310                 bt_common_color_reset());
1311
1312         /*
1313          * Print to standard error stream to remain backward compatible
1314          * with Babeltrace 1.
1315          */
1316         if (flush_buf(stderr, pretty)) {
1317                 ret = -1;
1318         }
1319
1320         return ret;
1321 }
1322
1323 BT_HIDDEN
1324 int pretty_print_discarded_items(struct pretty_component *pretty,
1325                 const bt_message *msg)
1326 {
1327         const bt_clock_snapshot *begin = NULL;
1328         const bt_clock_snapshot *end = NULL;
1329         const bt_stream *stream;
1330         const bt_stream_class *stream_class;
1331         uint64_t count = UINT64_C(-1);
1332         const char *elem_type;
1333
1334         switch (bt_message_get_type(msg)) {
1335         case BT_MESSAGE_TYPE_DISCARDED_EVENTS:
1336                 stream = bt_message_discarded_events_borrow_stream_const(msg);
1337
1338                 if (bt_message_discarded_events_get_count(msg, &count) ==
1339                                 BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE) {
1340                         count = UINT64_C(-1);
1341                 }
1342
1343                 elem_type = "event";
1344                 break;
1345         case BT_MESSAGE_TYPE_DISCARDED_PACKETS:
1346                 stream = bt_message_discarded_packets_borrow_stream_const(msg);
1347
1348                 if (bt_message_discarded_packets_get_count(msg, &count) ==
1349                                 BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE) {
1350                         count = UINT64_C(-1);
1351                 }
1352
1353                 elem_type = "packet";
1354                 break;
1355         default:
1356                 abort();
1357         }
1358
1359         BT_ASSERT(stream);
1360         stream_class = bt_stream_borrow_class_const(stream);
1361
1362         switch (bt_message_get_type(msg)) {
1363         case BT_MESSAGE_TYPE_DISCARDED_EVENTS:
1364                 if (bt_stream_class_discarded_events_have_default_clock_snapshots(
1365                                 stream_class)) {
1366                         begin = bt_message_discarded_events_borrow_beginning_default_clock_snapshot_const(
1367                                 msg);
1368                         end = bt_message_discarded_events_borrow_end_default_clock_snapshot_const(
1369                                 msg);
1370                 }
1371
1372                 break;
1373         case BT_MESSAGE_TYPE_DISCARDED_PACKETS:
1374                 if (bt_stream_class_discarded_packets_have_default_clock_snapshots(
1375                                 stream_class)) {
1376                         begin = bt_message_discarded_packets_borrow_beginning_default_clock_snapshot_const(
1377                                 msg);
1378                         end = bt_message_discarded_packets_borrow_end_default_clock_snapshot_const(
1379                                 msg);
1380                 }
1381
1382                 break;
1383         default:
1384                 abort();
1385         }
1386
1387         print_discarded_elements_msg(pretty, stream, begin, end,
1388                 count, elem_type);
1389         return 0;
1390 }