| 1 | /* |
| 2 | * BabelTrace - Common Trace Format (CTF) |
| 3 | * |
| 4 | * CTF Text Format registration. |
| 5 | * |
| 6 | * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation |
| 7 | * |
| 8 | * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 9 | * |
| 10 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 11 | * of this software and associated documentation files (the "Software"), to deal |
| 12 | * in the Software without restriction, including without limitation the rights |
| 13 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 14 | * copies of the Software, and to permit persons to whom the Software is |
| 15 | * furnished to do so, subject to the following conditions: |
| 16 | * |
| 17 | * The above copyright notice and this permission notice shall be included in |
| 18 | * all copies or substantial portions of the Software. |
| 19 | * |
| 20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 21 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 23 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 24 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 25 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 26 | * SOFTWARE. |
| 27 | */ |
| 28 | |
| 29 | #include <babeltrace/format.h> |
| 30 | #include <babeltrace/ctf-text/types.h> |
| 31 | #include <babeltrace/ctf/metadata.h> |
| 32 | #include <babeltrace/babeltrace-internal.h> |
| 33 | #include <babeltrace/ctf/events-internal.h> |
| 34 | #include <inttypes.h> |
| 35 | #include <sys/mman.h> |
| 36 | #include <errno.h> |
| 37 | #include <sys/types.h> |
| 38 | #include <sys/stat.h> |
| 39 | #include <fcntl.h> |
| 40 | #include <dirent.h> |
| 41 | #include <glib.h> |
| 42 | #include <unistd.h> |
| 43 | #include <stdlib.h> |
| 44 | |
| 45 | #define NSEC_PER_SEC 1000000000ULL |
| 46 | |
| 47 | int opt_all_field_names, |
| 48 | opt_scope_field_names, |
| 49 | opt_header_field_names, |
| 50 | opt_context_field_names, |
| 51 | opt_payload_field_names, |
| 52 | opt_all_fields, |
| 53 | opt_trace_field, |
| 54 | opt_trace_domain_field, |
| 55 | opt_trace_procname_field, |
| 56 | opt_trace_vpid_field, |
| 57 | opt_trace_hostname_field, |
| 58 | opt_trace_default_fields = 1, |
| 59 | opt_loglevel_field, |
| 60 | opt_emf_field, |
| 61 | opt_callsite_field, |
| 62 | opt_delta_field = 1; |
| 63 | |
| 64 | enum field_item { |
| 65 | ITEM_SCOPE, |
| 66 | ITEM_HEADER, |
| 67 | ITEM_CONTEXT, |
| 68 | ITEM_PAYLOAD, |
| 69 | }; |
| 70 | |
| 71 | enum bt_loglevel { |
| 72 | BT_LOGLEVEL_EMERG = 0, |
| 73 | BT_LOGLEVEL_ALERT = 1, |
| 74 | BT_LOGLEVEL_CRIT = 2, |
| 75 | BT_LOGLEVEL_ERR = 3, |
| 76 | BT_LOGLEVEL_WARNING = 4, |
| 77 | BT_LOGLEVEL_NOTICE = 5, |
| 78 | BT_LOGLEVEL_INFO = 6, |
| 79 | BT_LOGLEVEL_DEBUG_SYSTEM = 7, |
| 80 | BT_LOGLEVEL_DEBUG_PROGRAM = 8, |
| 81 | BT_LOGLEVEL_DEBUG_PROCESS = 9, |
| 82 | BT_LOGLEVEL_DEBUG_MODULE = 10, |
| 83 | BT_LOGLEVEL_DEBUG_UNIT = 11, |
| 84 | BT_LOGLEVEL_DEBUG_FUNCTION = 12, |
| 85 | BT_LOGLEVEL_DEBUG_LINE = 13, |
| 86 | BT_LOGLEVEL_DEBUG = 14, |
| 87 | }; |
| 88 | |
| 89 | static |
| 90 | struct bt_trace_descriptor *ctf_text_open_trace(const char *path, int flags, |
| 91 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
| 92 | int whence), FILE *metadata_fp); |
| 93 | static |
| 94 | int ctf_text_close_trace(struct bt_trace_descriptor *descriptor); |
| 95 | |
| 96 | static |
| 97 | rw_dispatch write_dispatch_table[] = { |
| 98 | [ CTF_TYPE_INTEGER ] = ctf_text_integer_write, |
| 99 | [ CTF_TYPE_FLOAT ] = ctf_text_float_write, |
| 100 | [ CTF_TYPE_ENUM ] = ctf_text_enum_write, |
| 101 | [ CTF_TYPE_STRING ] = ctf_text_string_write, |
| 102 | [ CTF_TYPE_STRUCT ] = ctf_text_struct_write, |
| 103 | [ CTF_TYPE_VARIANT ] = ctf_text_variant_write, |
| 104 | [ CTF_TYPE_ARRAY ] = ctf_text_array_write, |
| 105 | [ CTF_TYPE_SEQUENCE ] = ctf_text_sequence_write, |
| 106 | }; |
| 107 | |
| 108 | static |
| 109 | struct bt_format ctf_text_format = { |
| 110 | .open_trace = ctf_text_open_trace, |
| 111 | .close_trace = ctf_text_close_trace, |
| 112 | }; |
| 113 | |
| 114 | static GQuark Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN, |
| 115 | Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END, |
| 116 | Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED, |
| 117 | Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE, |
| 118 | Q_STREAM_PACKET_CONTEXT_PACKET_SIZE; |
| 119 | |
| 120 | static |
| 121 | void __attribute__((constructor)) init_quarks(void) |
| 122 | { |
| 123 | Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN = g_quark_from_static_string("stream.packet.context.timestamp_begin"); |
| 124 | Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END = g_quark_from_static_string("stream.packet.context.timestamp_end"); |
| 125 | Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED = g_quark_from_static_string("stream.packet.context.events_discarded"); |
| 126 | Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE = g_quark_from_static_string("stream.packet.context.content_size"); |
| 127 | Q_STREAM_PACKET_CONTEXT_PACKET_SIZE = g_quark_from_static_string("stream.packet.context.packet_size"); |
| 128 | } |
| 129 | |
| 130 | static |
| 131 | struct ctf_callsite_dups *ctf_trace_callsite_lookup(struct ctf_trace *trace, |
| 132 | GQuark callsite_name) |
| 133 | { |
| 134 | return g_hash_table_lookup(trace->callsites, |
| 135 | (gpointer) (unsigned long) callsite_name); |
| 136 | } |
| 137 | |
| 138 | int print_field(struct bt_definition *definition) |
| 139 | { |
| 140 | /* Print all fields in verbose mode */ |
| 141 | if (babeltrace_verbose) |
| 142 | return 1; |
| 143 | |
| 144 | /* Filter out part of the packet context */ |
| 145 | if (definition->path == Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN) |
| 146 | return 0; |
| 147 | if (definition->path == Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END) |
| 148 | return 0; |
| 149 | if (definition->path == Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED) |
| 150 | return 0; |
| 151 | if (definition->path == Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE) |
| 152 | return 0; |
| 153 | if (definition->path == Q_STREAM_PACKET_CONTEXT_PACKET_SIZE) |
| 154 | return 0; |
| 155 | |
| 156 | return 1; |
| 157 | } |
| 158 | |
| 159 | static |
| 160 | void set_field_names_print(struct ctf_text_stream_pos *pos, enum field_item item) |
| 161 | { |
| 162 | switch (item) { |
| 163 | case ITEM_SCOPE: |
| 164 | if (opt_all_field_names || opt_scope_field_names) |
| 165 | pos->print_names = 1; |
| 166 | else |
| 167 | pos->print_names = 0; |
| 168 | break; |
| 169 | case ITEM_HEADER: |
| 170 | if (opt_all_field_names || opt_header_field_names) |
| 171 | pos->print_names = 1; |
| 172 | else |
| 173 | pos->print_names = 0; |
| 174 | break; |
| 175 | case ITEM_CONTEXT: |
| 176 | if (opt_all_field_names || opt_context_field_names) |
| 177 | pos->print_names = 1; |
| 178 | else |
| 179 | pos->print_names = 0; |
| 180 | break; |
| 181 | case ITEM_PAYLOAD: |
| 182 | if (opt_all_field_names || opt_payload_field_names) |
| 183 | pos->print_names = 1; |
| 184 | else |
| 185 | pos->print_names = 0; |
| 186 | |
| 187 | break; |
| 188 | default: |
| 189 | assert(0); |
| 190 | } |
| 191 | } |
| 192 | |
| 193 | static |
| 194 | const char *print_loglevel(int value) |
| 195 | { |
| 196 | switch (value) { |
| 197 | case -1: |
| 198 | return ""; |
| 199 | case BT_LOGLEVEL_EMERG: |
| 200 | return "TRACE_EMERG"; |
| 201 | case BT_LOGLEVEL_ALERT: |
| 202 | return "TRACE_ALERT"; |
| 203 | case BT_LOGLEVEL_CRIT: |
| 204 | return "TRACE_CRIT"; |
| 205 | case BT_LOGLEVEL_ERR: |
| 206 | return "TRACE_ERR"; |
| 207 | case BT_LOGLEVEL_WARNING: |
| 208 | return "TRACE_WARNING"; |
| 209 | case BT_LOGLEVEL_NOTICE: |
| 210 | return "TRACE_NOTICE"; |
| 211 | case BT_LOGLEVEL_INFO: |
| 212 | return "TRACE_INFO"; |
| 213 | case BT_LOGLEVEL_DEBUG_SYSTEM: |
| 214 | return "TRACE_DEBUG_SYSTEM"; |
| 215 | case BT_LOGLEVEL_DEBUG_PROGRAM: |
| 216 | return "TRACE_DEBUG_PROGRAM"; |
| 217 | case BT_LOGLEVEL_DEBUG_PROCESS: |
| 218 | return "TRACE_DEBUG_PROCESS"; |
| 219 | case BT_LOGLEVEL_DEBUG_MODULE: |
| 220 | return "TRACE_DEBUG_MODULE"; |
| 221 | case BT_LOGLEVEL_DEBUG_UNIT: |
| 222 | return "TRACE_DEBUG_UNIT"; |
| 223 | case BT_LOGLEVEL_DEBUG_FUNCTION: |
| 224 | return "TRACE_DEBUG_FUNCTION"; |
| 225 | case BT_LOGLEVEL_DEBUG_LINE: |
| 226 | return "TRACE_DEBUG_LINE"; |
| 227 | case BT_LOGLEVEL_DEBUG: |
| 228 | return "TRACE_DEBUG"; |
| 229 | default: |
| 230 | return "<<UNKNOWN>>"; |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | static |
| 235 | int ctf_text_write_event(struct bt_stream_pos *ppos, struct ctf_stream_definition *stream) |
| 236 | |
| 237 | { |
| 238 | struct ctf_text_stream_pos *pos = |
| 239 | container_of(ppos, struct ctf_text_stream_pos, parent); |
| 240 | struct ctf_stream_declaration *stream_class = stream->stream_class; |
| 241 | int field_nr_saved; |
| 242 | struct ctf_event_declaration *event_class; |
| 243 | struct ctf_event_definition *event; |
| 244 | uint64_t id; |
| 245 | int ret; |
| 246 | int dom_print = 0; |
| 247 | |
| 248 | id = stream->event_id; |
| 249 | |
| 250 | if (id >= stream_class->events_by_id->len) { |
| 251 | fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id); |
| 252 | return -EINVAL; |
| 253 | } |
| 254 | event = g_ptr_array_index(stream->events_by_id, id); |
| 255 | if (!event) { |
| 256 | fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id); |
| 257 | return -EINVAL; |
| 258 | } |
| 259 | event_class = g_ptr_array_index(stream_class->events_by_id, id); |
| 260 | if (!event_class) { |
| 261 | fprintf(stderr, "[error] Event class id %" PRIu64 " is unknown.\n", id); |
| 262 | return -EINVAL; |
| 263 | } |
| 264 | |
| 265 | /* Print events discarded */ |
| 266 | if (stream->events_discarded) { |
| 267 | fflush(pos->fp); |
| 268 | ctf_print_discarded(stderr, stream, 0); |
| 269 | stream->events_discarded = 0; |
| 270 | } |
| 271 | |
| 272 | if (stream->has_timestamp) { |
| 273 | set_field_names_print(pos, ITEM_HEADER); |
| 274 | if (pos->print_names) |
| 275 | fprintf(pos->fp, "timestamp = "); |
| 276 | else |
| 277 | fprintf(pos->fp, "["); |
| 278 | if (opt_clock_cycles) { |
| 279 | ctf_print_timestamp(pos->fp, stream, stream->cycles_timestamp); |
| 280 | } else { |
| 281 | ctf_print_timestamp(pos->fp, stream, stream->real_timestamp); |
| 282 | } |
| 283 | if (!pos->print_names) |
| 284 | fprintf(pos->fp, "]"); |
| 285 | |
| 286 | if (pos->print_names) |
| 287 | fprintf(pos->fp, ", "); |
| 288 | else |
| 289 | fprintf(pos->fp, " "); |
| 290 | } |
| 291 | if (opt_delta_field && stream->has_timestamp) { |
| 292 | uint64_t delta, delta_sec, delta_nsec; |
| 293 | |
| 294 | set_field_names_print(pos, ITEM_HEADER); |
| 295 | if (pos->print_names) |
| 296 | fprintf(pos->fp, "delta = "); |
| 297 | else |
| 298 | fprintf(pos->fp, "("); |
| 299 | if (pos->last_real_timestamp != -1ULL) { |
| 300 | delta = stream->real_timestamp - pos->last_real_timestamp; |
| 301 | delta_sec = delta / NSEC_PER_SEC; |
| 302 | delta_nsec = delta % NSEC_PER_SEC; |
| 303 | fprintf(pos->fp, "+%" PRIu64 ".%09" PRIu64, |
| 304 | delta_sec, delta_nsec); |
| 305 | } else { |
| 306 | fprintf(pos->fp, "+?.?????????"); |
| 307 | } |
| 308 | if (!pos->print_names) |
| 309 | fprintf(pos->fp, ")"); |
| 310 | |
| 311 | if (pos->print_names) |
| 312 | fprintf(pos->fp, ", "); |
| 313 | else |
| 314 | fprintf(pos->fp, " "); |
| 315 | pos->last_real_timestamp = stream->real_timestamp; |
| 316 | pos->last_cycles_timestamp = stream->cycles_timestamp; |
| 317 | } |
| 318 | |
| 319 | if ((opt_trace_field || opt_all_fields) && stream_class->trace->parent.path[0] != '\0') { |
| 320 | set_field_names_print(pos, ITEM_HEADER); |
| 321 | if (pos->print_names) { |
| 322 | fprintf(pos->fp, "trace = "); |
| 323 | } |
| 324 | fprintf(pos->fp, "%s", stream_class->trace->parent.path); |
| 325 | if (pos->print_names) |
| 326 | fprintf(pos->fp, ", "); |
| 327 | else |
| 328 | fprintf(pos->fp, " "); |
| 329 | } |
| 330 | if ((opt_trace_hostname_field || opt_all_fields || opt_trace_default_fields) |
| 331 | && stream_class->trace->env.hostname[0] != '\0') { |
| 332 | set_field_names_print(pos, ITEM_HEADER); |
| 333 | if (pos->print_names) { |
| 334 | fprintf(pos->fp, "trace:hostname = "); |
| 335 | } |
| 336 | fprintf(pos->fp, "%s", stream_class->trace->env.hostname); |
| 337 | if (pos->print_names) |
| 338 | fprintf(pos->fp, ", "); |
| 339 | dom_print = 1; |
| 340 | } |
| 341 | if ((opt_trace_domain_field || opt_all_fields) && stream_class->trace->env.domain[0] != '\0') { |
| 342 | set_field_names_print(pos, ITEM_HEADER); |
| 343 | if (pos->print_names) { |
| 344 | fprintf(pos->fp, "trace:domain = "); |
| 345 | } |
| 346 | fprintf(pos->fp, "%s", stream_class->trace->env.domain); |
| 347 | if (pos->print_names) |
| 348 | fprintf(pos->fp, ", "); |
| 349 | dom_print = 1; |
| 350 | } |
| 351 | if ((opt_trace_procname_field || opt_all_fields || opt_trace_default_fields) |
| 352 | && stream_class->trace->env.procname[0] != '\0') { |
| 353 | set_field_names_print(pos, ITEM_HEADER); |
| 354 | if (pos->print_names) { |
| 355 | fprintf(pos->fp, "trace:procname = "); |
| 356 | } else if (dom_print) { |
| 357 | fprintf(pos->fp, ":"); |
| 358 | } |
| 359 | fprintf(pos->fp, "%s", stream_class->trace->env.procname); |
| 360 | if (pos->print_names) |
| 361 | fprintf(pos->fp, ", "); |
| 362 | dom_print = 1; |
| 363 | } |
| 364 | if ((opt_trace_vpid_field || opt_all_fields || opt_trace_default_fields) |
| 365 | && stream_class->trace->env.vpid != -1) { |
| 366 | set_field_names_print(pos, ITEM_HEADER); |
| 367 | if (pos->print_names) { |
| 368 | fprintf(pos->fp, "trace:vpid = "); |
| 369 | } else if (dom_print) { |
| 370 | fprintf(pos->fp, ":"); |
| 371 | } |
| 372 | fprintf(pos->fp, "%d", stream_class->trace->env.vpid); |
| 373 | if (pos->print_names) |
| 374 | fprintf(pos->fp, ", "); |
| 375 | dom_print = 1; |
| 376 | } |
| 377 | if ((opt_loglevel_field || opt_all_fields) && event_class->loglevel != -1) { |
| 378 | set_field_names_print(pos, ITEM_HEADER); |
| 379 | if (pos->print_names) { |
| 380 | fprintf(pos->fp, "loglevel = "); |
| 381 | } else if (dom_print) { |
| 382 | fprintf(pos->fp, ":"); |
| 383 | } |
| 384 | fprintf(pos->fp, "%s (%d)", |
| 385 | print_loglevel(event_class->loglevel), |
| 386 | event_class->loglevel); |
| 387 | if (pos->print_names) |
| 388 | fprintf(pos->fp, ", "); |
| 389 | dom_print = 1; |
| 390 | } |
| 391 | if ((opt_emf_field || opt_all_fields) && event_class->model_emf_uri) { |
| 392 | set_field_names_print(pos, ITEM_HEADER); |
| 393 | if (pos->print_names) { |
| 394 | fprintf(pos->fp, "model.emf.uri = "); |
| 395 | } else if (dom_print) { |
| 396 | fprintf(pos->fp, ":"); |
| 397 | } |
| 398 | fprintf(pos->fp, "\"%s\"", |
| 399 | g_quark_to_string(event_class->model_emf_uri)); |
| 400 | if (pos->print_names) |
| 401 | fprintf(pos->fp, ", "); |
| 402 | dom_print = 1; |
| 403 | } |
| 404 | if ((opt_callsite_field || opt_all_fields)) { |
| 405 | struct ctf_callsite_dups *cs_dups; |
| 406 | struct ctf_callsite *callsite; |
| 407 | |
| 408 | cs_dups = ctf_trace_callsite_lookup(stream_class->trace, |
| 409 | event_class->name); |
| 410 | if (cs_dups) { |
| 411 | int i = 0; |
| 412 | |
| 413 | set_field_names_print(pos, ITEM_HEADER); |
| 414 | if (pos->print_names) { |
| 415 | fprintf(pos->fp, "callsite = "); |
| 416 | } else if (dom_print) { |
| 417 | fprintf(pos->fp, ":"); |
| 418 | } |
| 419 | fprintf(pos->fp, "["); |
| 420 | bt_list_for_each_entry(callsite, &cs_dups->head, node) { |
| 421 | if (i != 0) |
| 422 | fprintf(pos->fp, ","); |
| 423 | if (CTF_CALLSITE_FIELD_IS_SET(callsite, ip)) { |
| 424 | fprintf(pos->fp, "%s@0x%" PRIx64 ":%s:%" PRIu64 "", |
| 425 | callsite->func, callsite->ip, callsite->file, |
| 426 | callsite->line); |
| 427 | } else { |
| 428 | fprintf(pos->fp, "%s:%s:%" PRIu64 "", |
| 429 | callsite->func, callsite->file, |
| 430 | callsite->line); |
| 431 | } |
| 432 | i++; |
| 433 | } |
| 434 | fprintf(pos->fp, "]"); |
| 435 | if (pos->print_names) |
| 436 | fprintf(pos->fp, ", "); |
| 437 | dom_print = 1; |
| 438 | } |
| 439 | } |
| 440 | if (dom_print && !pos->print_names) |
| 441 | fprintf(pos->fp, " "); |
| 442 | set_field_names_print(pos, ITEM_HEADER); |
| 443 | if (pos->print_names) |
| 444 | fprintf(pos->fp, "name = "); |
| 445 | fprintf(pos->fp, "%s", g_quark_to_string(event_class->name)); |
| 446 | if (pos->print_names) |
| 447 | pos->field_nr++; |
| 448 | else |
| 449 | fprintf(pos->fp, ":"); |
| 450 | |
| 451 | /* print cpuid field from packet context */ |
| 452 | if (stream->stream_packet_context) { |
| 453 | if (pos->field_nr++ != 0) |
| 454 | fprintf(pos->fp, ","); |
| 455 | set_field_names_print(pos, ITEM_SCOPE); |
| 456 | if (pos->print_names) |
| 457 | fprintf(pos->fp, " stream.packet.context ="); |
| 458 | field_nr_saved = pos->field_nr; |
| 459 | pos->field_nr = 0; |
| 460 | set_field_names_print(pos, ITEM_CONTEXT); |
| 461 | ret = generic_rw(ppos, &stream->stream_packet_context->p); |
| 462 | if (ret) |
| 463 | goto error; |
| 464 | pos->field_nr = field_nr_saved; |
| 465 | } |
| 466 | |
| 467 | /* Only show the event header in verbose mode */ |
| 468 | if (babeltrace_verbose && stream->stream_event_header) { |
| 469 | if (pos->field_nr++ != 0) |
| 470 | fprintf(pos->fp, ","); |
| 471 | set_field_names_print(pos, ITEM_SCOPE); |
| 472 | if (pos->print_names) |
| 473 | fprintf(pos->fp, " stream.event.header ="); |
| 474 | field_nr_saved = pos->field_nr; |
| 475 | pos->field_nr = 0; |
| 476 | set_field_names_print(pos, ITEM_CONTEXT); |
| 477 | ret = generic_rw(ppos, &stream->stream_event_header->p); |
| 478 | if (ret) |
| 479 | goto error; |
| 480 | pos->field_nr = field_nr_saved; |
| 481 | } |
| 482 | |
| 483 | /* print stream-declared event context */ |
| 484 | if (stream->stream_event_context) { |
| 485 | if (pos->field_nr++ != 0) |
| 486 | fprintf(pos->fp, ","); |
| 487 | set_field_names_print(pos, ITEM_SCOPE); |
| 488 | if (pos->print_names) |
| 489 | fprintf(pos->fp, " stream.event.context ="); |
| 490 | field_nr_saved = pos->field_nr; |
| 491 | pos->field_nr = 0; |
| 492 | set_field_names_print(pos, ITEM_CONTEXT); |
| 493 | ret = generic_rw(ppos, &stream->stream_event_context->p); |
| 494 | if (ret) |
| 495 | goto error; |
| 496 | pos->field_nr = field_nr_saved; |
| 497 | } |
| 498 | |
| 499 | /* print event-declared event context */ |
| 500 | if (event->event_context) { |
| 501 | if (pos->field_nr++ != 0) |
| 502 | fprintf(pos->fp, ","); |
| 503 | set_field_names_print(pos, ITEM_SCOPE); |
| 504 | if (pos->print_names) |
| 505 | fprintf(pos->fp, " event.context ="); |
| 506 | field_nr_saved = pos->field_nr; |
| 507 | pos->field_nr = 0; |
| 508 | set_field_names_print(pos, ITEM_CONTEXT); |
| 509 | ret = generic_rw(ppos, &event->event_context->p); |
| 510 | if (ret) |
| 511 | goto error; |
| 512 | pos->field_nr = field_nr_saved; |
| 513 | } |
| 514 | |
| 515 | /* Read and print event payload */ |
| 516 | if (event->event_fields) { |
| 517 | if (pos->field_nr++ != 0) |
| 518 | fprintf(pos->fp, ","); |
| 519 | set_field_names_print(pos, ITEM_SCOPE); |
| 520 | if (pos->print_names) |
| 521 | fprintf(pos->fp, " event.fields ="); |
| 522 | field_nr_saved = pos->field_nr; |
| 523 | pos->field_nr = 0; |
| 524 | set_field_names_print(pos, ITEM_PAYLOAD); |
| 525 | ret = generic_rw(ppos, &event->event_fields->p); |
| 526 | if (ret) |
| 527 | goto error; |
| 528 | pos->field_nr = field_nr_saved; |
| 529 | } |
| 530 | /* newline */ |
| 531 | fprintf(pos->fp, "\n"); |
| 532 | pos->field_nr = 0; |
| 533 | |
| 534 | return 0; |
| 535 | |
| 536 | error: |
| 537 | fprintf(stderr, "[error] Unexpected end of stream. Either the trace data stream is corrupted or metadata description does not match data layout.\n"); |
| 538 | return ret; |
| 539 | } |
| 540 | |
| 541 | static |
| 542 | struct bt_trace_descriptor *ctf_text_open_trace(const char *path, int flags, |
| 543 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
| 544 | int whence), FILE *metadata_fp) |
| 545 | { |
| 546 | struct ctf_text_stream_pos *pos; |
| 547 | FILE *fp; |
| 548 | |
| 549 | pos = g_new0(struct ctf_text_stream_pos, 1); |
| 550 | |
| 551 | pos->last_real_timestamp = -1ULL; |
| 552 | pos->last_cycles_timestamp = -1ULL; |
| 553 | switch (flags & O_ACCMODE) { |
| 554 | case O_RDWR: |
| 555 | if (!path) |
| 556 | fp = stdout; |
| 557 | else |
| 558 | fp = fopen(path, "w"); |
| 559 | if (!fp) |
| 560 | goto error; |
| 561 | pos->fp = fp; |
| 562 | pos->parent.rw_table = write_dispatch_table; |
| 563 | pos->parent.event_cb = ctf_text_write_event; |
| 564 | pos->parent.trace = &pos->trace_descriptor; |
| 565 | pos->print_names = 0; |
| 566 | break; |
| 567 | case O_RDONLY: |
| 568 | default: |
| 569 | fprintf(stderr, "[error] Incorrect open flags.\n"); |
| 570 | goto error; |
| 571 | } |
| 572 | |
| 573 | return &pos->trace_descriptor; |
| 574 | error: |
| 575 | g_free(pos); |
| 576 | return NULL; |
| 577 | } |
| 578 | |
| 579 | static |
| 580 | int ctf_text_close_trace(struct bt_trace_descriptor *td) |
| 581 | { |
| 582 | int ret; |
| 583 | struct ctf_text_stream_pos *pos = |
| 584 | container_of(td, struct ctf_text_stream_pos, trace_descriptor); |
| 585 | if (pos->fp != stdout) { |
| 586 | ret = fclose(pos->fp); |
| 587 | if (ret) { |
| 588 | perror("Error on fclose"); |
| 589 | return -1; |
| 590 | } |
| 591 | } |
| 592 | g_free(pos); |
| 593 | return 0; |
| 594 | } |
| 595 | |
| 596 | static |
| 597 | void __attribute__((constructor)) ctf_text_init(void) |
| 598 | { |
| 599 | int ret; |
| 600 | |
| 601 | ctf_text_format.name = g_quark_from_static_string("text"); |
| 602 | ret = bt_register_format(&ctf_text_format); |
| 603 | assert(!ret); |
| 604 | } |
| 605 | |
| 606 | static |
| 607 | void __attribute__((destructor)) ctf_text_exit(void) |
| 608 | { |
| 609 | bt_unregister_format(&ctf_text_format); |
| 610 | } |