Commit | Line | Data |
---|---|---|
9843982d | 1 | /* |
5c5facc7 | 2 | * ctf/events.c |
9843982d JD |
3 | * |
4 | * Babeltrace Library | |
5 | * | |
6 | * Copyright 2011-2012 EfficiOS Inc. and Linux Foundation | |
7 | * | |
8 | * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
9 | * Julien Desfossez <julien.desfossez@efficios.com> | |
10 | * | |
11 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
12 | * of this software and associated documentation files (the "Software"), to deal | |
13 | * in the Software without restriction, including without limitation the rights | |
14 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
15 | * copies of the Software, and to permit persons to whom the Software is | |
16 | * furnished to do so, subject to the following conditions: | |
17 | * | |
18 | * The above copyright notice and this permission notice shall be included in | |
19 | * all copies or substantial portions of the Software. | |
20 | */ | |
21 | ||
22 | #include <babeltrace/babeltrace.h> | |
23 | #include <babeltrace/format.h> | |
24 | #include <babeltrace/ctf/events.h> | |
25 | #include <babeltrace/ctf-ir/metadata.h> | |
e4195791 MD |
26 | #include <babeltrace/prio_heap.h> |
27 | #include <babeltrace/iterator-internal.h> | |
28 | #include <babeltrace/ctf/events-internal.h> | |
29 | #include <babeltrace/ctf/metadata.h> | |
9843982d JD |
30 | #include <glib.h> |
31 | ||
c34ea0fa MD |
32 | #include "events-private.h" |
33 | ||
9843982d JD |
34 | /* |
35 | * thread local storage to store the last error that occured | |
36 | * while reading a field, this variable must be accessed by | |
b330165c | 37 | * bt_ctf_field_get_error only |
9843982d JD |
38 | */ |
39 | __thread int bt_ctf_last_field_error = 0; | |
40 | ||
c50d2a7a | 41 | const struct definition *bt_ctf_get_top_level_scope(const struct bt_ctf_event *ctf_event, |
9843982d JD |
42 | enum bt_ctf_scope scope) |
43 | { | |
44 | struct definition *tmp = NULL; | |
7f89ddce | 45 | struct ctf_event_definition *event; |
9843982d | 46 | |
7f89ddce MD |
47 | if (!ctf_event) |
48 | return NULL; | |
49 | ||
50 | event = ctf_event->parent; | |
9843982d JD |
51 | switch (scope) { |
52 | case BT_TRACE_PACKET_HEADER: | |
53 | if (!event->stream) | |
54 | goto error; | |
55 | if (event->stream->trace_packet_header) | |
56 | tmp = &event->stream->trace_packet_header->p; | |
57 | break; | |
58 | case BT_STREAM_PACKET_CONTEXT: | |
59 | if (!event->stream) | |
60 | goto error; | |
61 | if (event->stream->stream_packet_context) | |
62 | tmp = &event->stream->stream_packet_context->p; | |
63 | break; | |
64 | case BT_STREAM_EVENT_HEADER: | |
65 | if (!event->stream) | |
66 | goto error; | |
67 | if (event->stream->stream_event_header) | |
68 | tmp = &event->stream->stream_event_header->p; | |
69 | break; | |
70 | case BT_STREAM_EVENT_CONTEXT: | |
71 | if (!event->stream) | |
72 | goto error; | |
73 | if (event->stream->stream_event_context) | |
74 | tmp = &event->stream->stream_event_context->p; | |
75 | break; | |
76 | case BT_EVENT_CONTEXT: | |
8a4722b0 JD |
77 | if (event->event_context) |
78 | tmp = &event->event_context->p; | |
9843982d JD |
79 | break; |
80 | case BT_EVENT_FIELDS: | |
8a4722b0 JD |
81 | if (event->event_fields) |
82 | tmp = &event->event_fields->p; | |
9843982d JD |
83 | break; |
84 | } | |
85 | return tmp; | |
86 | ||
87 | error: | |
88 | return NULL; | |
89 | } | |
90 | ||
c50d2a7a | 91 | const struct definition *bt_ctf_get_field(const struct bt_ctf_event *ctf_event, |
04ae3991 | 92 | const struct definition *scope, |
9843982d JD |
93 | const char *field) |
94 | { | |
95 | struct definition *def; | |
300d317a | 96 | char *field_underscore; |
9843982d | 97 | |
7f89ddce MD |
98 | if (!ctf_event || !scope || !field) |
99 | return NULL; | |
100 | ||
101 | def = lookup_definition(scope, field); | |
102 | /* | |
103 | * optionally a field can have an underscore prefix, try | |
104 | * to lookup the field with this prefix if it failed | |
105 | */ | |
106 | if (!def) { | |
107 | field_underscore = g_new(char, strlen(field) + 2); | |
108 | field_underscore[0] = '_'; | |
109 | strcpy(&field_underscore[1], field); | |
110 | def = lookup_definition(scope, field_underscore); | |
111 | g_free(field_underscore); | |
9843982d | 112 | } |
7f89ddce MD |
113 | if (bt_ctf_field_type(def) == CTF_TYPE_VARIANT) { |
114 | struct definition_variant *variant_definition; | |
115 | variant_definition = container_of(def, | |
116 | struct definition_variant, p); | |
117 | return variant_definition->current_field; | |
118 | } | |
119 | return def; | |
9843982d JD |
120 | } |
121 | ||
c50d2a7a | 122 | const struct definition *bt_ctf_get_index(const struct bt_ctf_event *ctf_event, |
04ae3991 | 123 | const struct definition *field, |
9843982d JD |
124 | unsigned int index) |
125 | { | |
126 | struct definition *ret = NULL; | |
127 | ||
7f89ddce MD |
128 | if (!ctf_event || !field) |
129 | return NULL; | |
130 | ||
9843982d JD |
131 | if (bt_ctf_field_type(field) == CTF_TYPE_ARRAY) { |
132 | struct definition_array *array_definition; | |
133 | array_definition = container_of(field, | |
134 | struct definition_array, p); | |
135 | ret = array_index(array_definition, index); | |
136 | } else if (bt_ctf_field_type(field) == CTF_TYPE_SEQUENCE) { | |
137 | struct definition_sequence *sequence_definition; | |
138 | sequence_definition = container_of(field, | |
139 | struct definition_sequence, p); | |
140 | ret = sequence_index(sequence_definition, index); | |
141 | } | |
142 | return ret; | |
143 | } | |
144 | ||
c50d2a7a | 145 | const char *bt_ctf_event_name(const struct bt_ctf_event *ctf_event) |
9843982d | 146 | { |
4716614a | 147 | struct ctf_event_declaration *event_class; |
f380e105 | 148 | struct ctf_stream_declaration *stream_class; |
7f89ddce | 149 | struct ctf_event_definition *event; |
9843982d | 150 | |
7f89ddce | 151 | if (!ctf_event) |
9843982d | 152 | return NULL; |
7f89ddce MD |
153 | |
154 | event = ctf_event->parent; | |
9843982d JD |
155 | stream_class = event->stream->stream_class; |
156 | event_class = g_ptr_array_index(stream_class->events_by_id, | |
157 | event->stream->event_id); | |
158 | return g_quark_to_string(event_class->name); | |
159 | } | |
160 | ||
161 | const char *bt_ctf_field_name(const struct definition *def) | |
162 | { | |
7f89ddce MD |
163 | if (!def) |
164 | return NULL; | |
165 | ||
166 | return rem_(g_quark_to_string(def->name)); | |
9843982d JD |
167 | } |
168 | ||
da320b83 | 169 | enum ctf_type_id bt_ctf_field_type(const struct definition *def) |
9843982d | 170 | { |
7f89ddce MD |
171 | if (!def) |
172 | return CTF_TYPE_UNKNOWN; | |
173 | ||
174 | return def->declaration->id; | |
9843982d JD |
175 | } |
176 | ||
c50d2a7a | 177 | int bt_ctf_get_field_list(const struct bt_ctf_event *ctf_event, |
04ae3991 | 178 | const struct definition *scope, |
9843982d JD |
179 | struct definition const * const **list, |
180 | unsigned int *count) | |
181 | { | |
7f89ddce MD |
182 | if (!ctf_event || !scope || !list || !count) |
183 | return -EINVAL; | |
184 | ||
9843982d JD |
185 | switch (bt_ctf_field_type(scope)) { |
186 | case CTF_TYPE_INTEGER: | |
187 | case CTF_TYPE_FLOAT: | |
188 | case CTF_TYPE_STRING: | |
189 | case CTF_TYPE_ENUM: | |
190 | goto error; | |
191 | case CTF_TYPE_STRUCT: | |
192 | { | |
04ae3991 | 193 | const struct definition_struct *def_struct; |
9843982d | 194 | |
04ae3991 | 195 | def_struct = container_of(scope, const struct definition_struct, p); |
9843982d JD |
196 | if (!def_struct) |
197 | goto error; | |
198 | if (def_struct->fields->pdata) { | |
199 | *list = (struct definition const* const*) def_struct->fields->pdata; | |
200 | *count = def_struct->fields->len; | |
201 | goto end; | |
202 | } else { | |
203 | goto error; | |
204 | } | |
7f89ddce | 205 | break; |
9843982d JD |
206 | } |
207 | case CTF_TYPE_UNTAGGED_VARIANT: | |
208 | goto error; | |
209 | case CTF_TYPE_VARIANT: | |
210 | { | |
04ae3991 | 211 | const struct definition_variant *def_variant; |
9843982d | 212 | |
04ae3991 | 213 | def_variant = container_of(scope, const struct definition_variant, p); |
9843982d JD |
214 | if (!def_variant) |
215 | goto error; | |
216 | if (def_variant->fields->pdata) { | |
217 | *list = (struct definition const* const*) def_variant->fields->pdata; | |
218 | *count = def_variant->fields->len; | |
219 | goto end; | |
220 | } else { | |
221 | goto error; | |
222 | } | |
7f89ddce | 223 | break; |
9843982d JD |
224 | } |
225 | case CTF_TYPE_ARRAY: | |
226 | { | |
04ae3991 | 227 | const struct definition_array *def_array; |
9843982d | 228 | |
04ae3991 | 229 | def_array = container_of(scope, const struct definition_array, p); |
9843982d JD |
230 | if (!def_array) |
231 | goto error; | |
232 | if (def_array->elems->pdata) { | |
233 | *list = (struct definition const* const*) def_array->elems->pdata; | |
234 | *count = def_array->elems->len; | |
235 | goto end; | |
236 | } else { | |
237 | goto error; | |
238 | } | |
7f89ddce | 239 | break; |
9843982d JD |
240 | } |
241 | case CTF_TYPE_SEQUENCE: | |
242 | { | |
04ae3991 | 243 | const struct definition_sequence *def_sequence; |
9843982d | 244 | |
04ae3991 | 245 | def_sequence = container_of(scope, const struct definition_sequence, p); |
9843982d JD |
246 | if (!def_sequence) |
247 | goto error; | |
248 | if (def_sequence->elems->pdata) { | |
249 | *list = (struct definition const* const*) def_sequence->elems->pdata; | |
250 | *count = def_sequence->elems->len; | |
251 | goto end; | |
252 | } else { | |
253 | goto error; | |
254 | } | |
7f89ddce | 255 | break; |
9843982d JD |
256 | } |
257 | default: | |
258 | break; | |
259 | } | |
260 | ||
261 | end: | |
262 | return 0; | |
263 | ||
264 | error: | |
265 | *list = NULL; | |
266 | *count = 0; | |
267 | return -1; | |
268 | } | |
269 | ||
c50d2a7a | 270 | struct bt_context *bt_ctf_event_get_context(const struct bt_ctf_event *ctf_event) |
98a04903 JD |
271 | { |
272 | struct bt_context *ret = NULL; | |
273 | struct ctf_file_stream *cfs; | |
98a04903 | 274 | struct ctf_trace *trace; |
7f89ddce | 275 | struct ctf_event_definition *event; |
98a04903 | 276 | |
7f89ddce MD |
277 | if (!ctf_event) |
278 | return NULL; | |
279 | ||
280 | event = ctf_event->parent; | |
98a04903 JD |
281 | cfs = container_of(event->stream, struct ctf_file_stream, |
282 | parent); | |
8b8dc96e | 283 | trace = cfs->parent.stream_class->trace; |
98a04903 JD |
284 | if (trace->ctx) |
285 | ret = trace->ctx; | |
286 | ||
287 | return ret; | |
288 | } | |
289 | ||
c50d2a7a | 290 | int bt_ctf_event_get_handle_id(const struct bt_ctf_event *ctf_event) |
98a04903 JD |
291 | { |
292 | int ret = -1; | |
293 | struct ctf_file_stream *cfs; | |
98a04903 | 294 | struct ctf_trace *trace; |
7f89ddce MD |
295 | struct ctf_event_definition *event; |
296 | ||
297 | if (!ctf_event) | |
298 | return -EINVAL; | |
98a04903 | 299 | |
7f89ddce | 300 | event = ctf_event->parent; |
98a04903 JD |
301 | cfs = container_of(event->stream, struct ctf_file_stream, |
302 | parent); | |
8b8dc96e | 303 | trace = cfs->parent.stream_class->trace; |
98a04903 JD |
304 | if (trace->handle) |
305 | ret = trace->handle->id; | |
306 | ||
307 | return ret; | |
308 | } | |
309 | ||
d40ee8ec | 310 | uint64_t bt_ctf_get_timestamp(const struct bt_ctf_event *ctf_event) |
9843982d | 311 | { |
7f89ddce MD |
312 | struct ctf_event_definition *event; |
313 | ||
314 | if (!ctf_event) | |
315 | return -1ULL; | |
316 | ||
317 | event = ctf_event->parent; | |
9843982d | 318 | if (event && event->stream->has_timestamp) |
03798a93 | 319 | return event->stream->real_timestamp; |
9843982d | 320 | else |
57f3005e SJD |
321 | return -1ULL; |
322 | } | |
323 | ||
d40ee8ec | 324 | uint64_t bt_ctf_get_cycles(const struct bt_ctf_event *ctf_event) |
57f3005e | 325 | { |
7f89ddce MD |
326 | struct ctf_event_definition *event; |
327 | ||
328 | if (!ctf_event) | |
329 | return -1ULL; | |
330 | ||
331 | event = ctf_event->parent; | |
c34ea0fa | 332 | if (event && event->stream->has_timestamp) |
03798a93 | 333 | return event->stream->cycles_timestamp; |
c34ea0fa | 334 | else |
57f3005e | 335 | return -1ULL; |
9843982d JD |
336 | } |
337 | ||
338 | static void bt_ctf_field_set_error(int error) | |
339 | { | |
340 | bt_ctf_last_field_error = error; | |
341 | } | |
342 | ||
343 | int bt_ctf_field_get_error(void) | |
344 | { | |
345 | int ret; | |
346 | ret = bt_ctf_last_field_error; | |
347 | bt_ctf_last_field_error = 0; | |
348 | ||
349 | return ret; | |
350 | } | |
351 | ||
8673030f JD |
352 | int bt_ctf_get_int_signedness(const struct definition *field) |
353 | { | |
354 | int ret; | |
355 | ||
356 | if (field && bt_ctf_field_type(field) == CTF_TYPE_INTEGER) { | |
357 | ret = get_int_signedness(field); | |
358 | } else { | |
7f89ddce | 359 | ret = -EINVAL; |
8673030f JD |
360 | bt_ctf_field_set_error(-EINVAL); |
361 | } | |
362 | ||
363 | return ret; | |
364 | } | |
365 | ||
366 | int bt_ctf_get_int_base(const struct definition *field) | |
367 | { | |
368 | int ret; | |
369 | ||
370 | if (field && bt_ctf_field_type(field) == CTF_TYPE_INTEGER) { | |
371 | ret = get_int_base(field); | |
372 | } else { | |
7f89ddce | 373 | ret = -EINVAL; |
8673030f JD |
374 | bt_ctf_field_set_error(-EINVAL); |
375 | } | |
376 | ||
377 | return ret; | |
378 | } | |
379 | ||
380 | int bt_ctf_get_int_byte_order(const struct definition *field) | |
381 | { | |
382 | int ret; | |
383 | ||
384 | if (field && bt_ctf_field_type(field) == CTF_TYPE_INTEGER) { | |
385 | ret = get_int_byte_order(field); | |
386 | } else { | |
7f89ddce | 387 | ret = -EINVAL; |
8673030f JD |
388 | bt_ctf_field_set_error(-EINVAL); |
389 | } | |
390 | ||
391 | return ret; | |
392 | } | |
393 | ||
fef0e521 MD |
394 | ssize_t bt_ctf_get_int_len(const struct definition *field) |
395 | { | |
396 | ssize_t ret; | |
397 | ||
398 | if (field && bt_ctf_field_type(field) == CTF_TYPE_INTEGER) { | |
399 | ret = (ssize_t) get_int_len(field); | |
400 | } else { | |
7f89ddce | 401 | ret = -EINVAL; |
fef0e521 MD |
402 | bt_ctf_field_set_error(-EINVAL); |
403 | } | |
404 | ||
405 | return ret; | |
406 | } | |
407 | ||
8673030f JD |
408 | enum ctf_string_encoding bt_ctf_get_encoding(const struct definition *field) |
409 | { | |
410 | enum ctf_string_encoding ret = 0; | |
411 | ||
412 | if (!field) | |
7f89ddce | 413 | goto error; |
8673030f JD |
414 | |
415 | if (bt_ctf_field_type(field) == CTF_TYPE_INTEGER) | |
416 | ret = get_int_encoding(field); | |
417 | else if (bt_ctf_field_type(field) == CTF_TYPE_STRING) | |
418 | ret = get_string_encoding(field); | |
419 | else | |
420 | goto error; | |
8673030f JD |
421 | return ret; |
422 | ||
423 | error: | |
424 | bt_ctf_field_set_error(-EINVAL); | |
425 | return -1; | |
426 | } | |
427 | ||
428 | int bt_ctf_get_array_len(const struct definition *field) | |
429 | { | |
430 | int ret; | |
431 | ||
432 | if (field && bt_ctf_field_type(field) == CTF_TYPE_ARRAY) { | |
433 | ret = get_array_len(field); | |
434 | } else { | |
435 | ret = -1; | |
436 | bt_ctf_field_set_error(-EINVAL); | |
437 | } | |
438 | ||
439 | return ret; | |
440 | } | |
441 | ||
da320b83 | 442 | uint64_t bt_ctf_get_uint64(const struct definition *field) |
9843982d | 443 | { |
63dd3817 | 444 | uint64_t ret = 0; |
9843982d JD |
445 | |
446 | if (field && bt_ctf_field_type(field) == CTF_TYPE_INTEGER) | |
447 | ret = get_unsigned_int(field); | |
448 | else | |
449 | bt_ctf_field_set_error(-EINVAL); | |
450 | ||
451 | return ret; | |
452 | } | |
453 | ||
da320b83 | 454 | int64_t bt_ctf_get_int64(const struct definition *field) |
9843982d | 455 | { |
63dd3817 | 456 | int64_t ret = 0; |
9843982d JD |
457 | |
458 | if (field && bt_ctf_field_type(field) == CTF_TYPE_INTEGER) | |
459 | ret = get_signed_int(field); | |
460 | else | |
461 | bt_ctf_field_set_error(-EINVAL); | |
462 | ||
463 | return ret; | |
464 | ||
465 | } | |
466 | ||
da320b83 | 467 | char *bt_ctf_get_char_array(const struct definition *field) |
9843982d JD |
468 | { |
469 | char *ret = NULL; | |
470 | ||
471 | if (field && bt_ctf_field_type(field) == CTF_TYPE_ARRAY) | |
472 | ret = get_char_array(field)->str; | |
473 | else | |
474 | bt_ctf_field_set_error(-EINVAL); | |
475 | ||
476 | return ret; | |
477 | } | |
478 | ||
da320b83 | 479 | char *bt_ctf_get_string(const struct definition *field) |
9843982d JD |
480 | { |
481 | char *ret = NULL; | |
482 | ||
483 | if (field && bt_ctf_field_type(field) == CTF_TYPE_STRING) | |
484 | ret = get_string(field); | |
485 | else | |
486 | bt_ctf_field_set_error(-EINVAL); | |
487 | ||
488 | return ret; | |
489 | } | |
e003ab50 JD |
490 | |
491 | int bt_ctf_get_event_decl_list(int handle_id, struct bt_context *ctx, | |
64c2c249 | 492 | struct bt_ctf_event_decl * const **list, |
e003ab50 JD |
493 | unsigned int *count) |
494 | { | |
495 | struct bt_trace_handle *handle; | |
496 | struct trace_descriptor *td; | |
497 | struct ctf_trace *tin; | |
498 | ||
7f89ddce | 499 | if (!ctx || !list || !count) |
e003ab50 JD |
500 | goto error; |
501 | ||
502 | handle = g_hash_table_lookup(ctx->trace_handles, | |
503 | (gpointer) (unsigned long) handle_id); | |
504 | if (!handle) | |
505 | goto error; | |
506 | ||
507 | td = handle->td; | |
508 | tin = container_of(td, struct ctf_trace, parent); | |
509 | ||
64c2c249 | 510 | *list = (struct bt_ctf_event_decl * const*) tin->event_declarations->pdata; |
e003ab50 JD |
511 | *count = tin->event_declarations->len; |
512 | return 0; | |
513 | ||
514 | error: | |
515 | return -1; | |
516 | } | |
517 | ||
518 | const char *bt_ctf_get_decl_event_name(const struct bt_ctf_event_decl *event) | |
519 | { | |
520 | if (!event) | |
521 | return NULL; | |
7f89ddce | 522 | |
e003ab50 JD |
523 | return g_quark_to_string(event->parent.name); |
524 | } | |
64c2c249 JD |
525 | |
526 | int bt_ctf_get_decl_fields(struct bt_ctf_event_decl *event_decl, | |
527 | enum bt_ctf_scope scope, | |
528 | struct bt_ctf_field_decl const * const **list, | |
529 | unsigned int *count) | |
530 | { | |
531 | int i; | |
532 | GArray *fields = NULL; | |
533 | gpointer *ret_list = NULL; | |
534 | GPtrArray *fields_array = NULL; | |
535 | int ret = 0; | |
536 | *count = 0; | |
537 | ||
7f89ddce MD |
538 | if (!event_decl || !list || !count) |
539 | return -EINVAL; | |
540 | ||
64c2c249 JD |
541 | switch (scope) { |
542 | case BT_EVENT_CONTEXT: | |
543 | if (event_decl->context_decl) { | |
544 | ret_list = event_decl->context_decl->pdata; | |
545 | *count = event_decl->context_decl->len; | |
546 | goto end; | |
547 | } | |
548 | event_decl->context_decl = g_ptr_array_new(); | |
549 | if (!event_decl->parent.context_decl) { | |
550 | ret = -1; | |
551 | goto end; | |
552 | } | |
553 | fields = event_decl->parent.context_decl->fields; | |
554 | fields_array = event_decl->context_decl; | |
555 | break; | |
556 | case BT_EVENT_FIELDS: | |
557 | if (event_decl->fields_decl) { | |
558 | ret_list = event_decl->fields_decl->pdata; | |
559 | *count = event_decl->fields_decl->len; | |
560 | goto end; | |
561 | } | |
562 | event_decl->fields_decl = g_ptr_array_new(); | |
563 | if (!event_decl->parent.fields_decl) { | |
564 | ret = -1; | |
565 | goto end; | |
566 | } | |
567 | fields = event_decl->parent.fields_decl->fields; | |
568 | fields_array = event_decl->fields_decl; | |
569 | break; | |
570 | case BT_STREAM_PACKET_CONTEXT: | |
571 | if (event_decl->packet_context_decl) { | |
572 | ret_list = event_decl->packet_context_decl->pdata; | |
573 | *count = event_decl->packet_context_decl->len; | |
574 | goto end; | |
575 | } | |
576 | event_decl->packet_context_decl = g_ptr_array_new(); | |
577 | if (!event_decl->parent.stream->packet_context_decl) { | |
578 | ret = -1; | |
579 | goto end; | |
580 | } | |
581 | fields = event_decl->parent.stream->packet_context_decl->fields; | |
582 | fields_array = event_decl->packet_context_decl; | |
583 | break; | |
584 | case BT_STREAM_EVENT_CONTEXT: | |
585 | if (event_decl->event_context_decl) { | |
586 | ret_list = event_decl->event_context_decl->pdata; | |
587 | *count = event_decl->event_context_decl->len; | |
588 | goto end; | |
589 | } | |
590 | event_decl->event_context_decl = g_ptr_array_new(); | |
591 | if (!event_decl->parent.stream->event_context_decl) { | |
592 | ret = -1; | |
593 | goto end; | |
594 | } | |
595 | fields = event_decl->parent.stream->event_context_decl->fields; | |
596 | fields_array = event_decl->event_context_decl; | |
597 | break; | |
598 | case BT_STREAM_EVENT_HEADER: | |
599 | if (event_decl->event_header_decl) { | |
600 | ret_list = event_decl->event_header_decl->pdata; | |
601 | *count = event_decl->event_header_decl->len; | |
602 | goto end; | |
603 | } | |
604 | event_decl->event_header_decl = g_ptr_array_new(); | |
605 | if (!event_decl->parent.stream->event_header_decl) { | |
606 | ret = -1; | |
607 | goto end; | |
608 | } | |
609 | fields = event_decl->parent.stream->event_header_decl->fields; | |
610 | fields_array = event_decl->event_header_decl; | |
611 | break; | |
612 | case BT_TRACE_PACKET_HEADER: | |
613 | if (event_decl->packet_header_decl) { | |
614 | ret_list = event_decl->packet_header_decl->pdata; | |
615 | *count = event_decl->packet_header_decl->len; | |
616 | goto end; | |
617 | } | |
618 | event_decl->packet_header_decl = g_ptr_array_new(); | |
619 | if (!event_decl->parent.stream->trace->packet_header_decl) { | |
620 | ret = -1; | |
621 | goto end; | |
622 | } | |
623 | fields = event_decl->parent.stream->trace->packet_header_decl->fields; | |
624 | fields_array = event_decl->packet_header_decl; | |
625 | break; | |
626 | } | |
627 | ||
628 | for (i = 0; i < fields->len; i++) { | |
629 | g_ptr_array_add(fields_array, | |
630 | &g_array_index(fields, | |
631 | struct declaration_field, i)); | |
632 | } | |
633 | ret_list = fields_array->pdata; | |
634 | *count = fields->len; | |
635 | ||
636 | end: | |
637 | *list = (struct bt_ctf_field_decl const* const*) ret_list; | |
638 | ||
639 | return ret; | |
640 | } | |
641 | ||
642 | const char *bt_ctf_get_decl_field_name(const struct bt_ctf_field_decl *field) | |
643 | { | |
7f89ddce MD |
644 | if (!field) |
645 | return NULL; | |
646 | ||
647 | return rem_(g_quark_to_string(((struct declaration_field *) field)->name)); | |
64c2c249 | 648 | } |