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