Commit | Line | Data |
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bc37ae52 JG |
1 | /* |
2 | * trace.c | |
3 | * | |
4 | * Babeltrace CTF IR - Trace | |
5 | * | |
6 | * Copyright 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
7 | * | |
8 | * Author: Jérémie Galarneau <jeremie.galarneau@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/ctf-ir/trace-internal.h> | |
30 | #include <babeltrace/ctf-ir/clock-internal.h> | |
31 | #include <babeltrace/ctf-ir/stream-internal.h> | |
32 | #include <babeltrace/ctf-ir/stream-class-internal.h> | |
33 | #include <babeltrace/ctf-writer/functor-internal.h> | |
34 | #include <babeltrace/ctf-ir/event-types-internal.h> | |
654c1444 | 35 | #include <babeltrace/ctf-ir/utils.h> |
bc37ae52 JG |
36 | #include <babeltrace/compiler.h> |
37 | ||
38 | #define DEFAULT_IDENTIFIER_SIZE 128 | |
39 | #define DEFAULT_METADATA_STRING_SIZE 4096 | |
40 | ||
41 | static | |
42 | void environment_variable_destroy(struct environment_variable *var); | |
43 | static | |
44 | void bt_ctf_trace_destroy(struct bt_ctf_ref *ref); | |
45 | static | |
46 | int init_trace_packet_header(struct bt_ctf_trace *trace); | |
47 | ||
bc37ae52 JG |
48 | static |
49 | const unsigned int field_type_aliases_alignments[] = { | |
50 | [FIELD_TYPE_ALIAS_UINT5_T] = 1, | |
51 | [FIELD_TYPE_ALIAS_UINT8_T ... FIELD_TYPE_ALIAS_UINT16_T] = 8, | |
52 | [FIELD_TYPE_ALIAS_UINT27_T] = 1, | |
53 | [FIELD_TYPE_ALIAS_UINT32_T ... FIELD_TYPE_ALIAS_UINT64_T] = 8, | |
54 | }; | |
55 | ||
56 | static | |
57 | const unsigned int field_type_aliases_sizes[] = { | |
58 | [FIELD_TYPE_ALIAS_UINT5_T] = 5, | |
59 | [FIELD_TYPE_ALIAS_UINT8_T] = 8, | |
60 | [FIELD_TYPE_ALIAS_UINT16_T] = 16, | |
61 | [FIELD_TYPE_ALIAS_UINT27_T] = 27, | |
62 | [FIELD_TYPE_ALIAS_UINT32_T] = 32, | |
63 | [FIELD_TYPE_ALIAS_UINT64_T] = 64, | |
64 | }; | |
65 | ||
bc37ae52 JG |
66 | struct bt_ctf_trace *bt_ctf_trace_create(void) |
67 | { | |
68 | struct bt_ctf_trace *trace = NULL; | |
69 | ||
70 | trace = g_new0(struct bt_ctf_trace, 1); | |
71 | if (!trace) { | |
72 | goto error; | |
73 | } | |
74 | ||
75 | bt_ctf_trace_set_byte_order(trace, BT_CTF_BYTE_ORDER_NATIVE); | |
76 | bt_ctf_ref_init(&trace->ref_count); | |
77 | trace->environment = g_ptr_array_new_with_free_func( | |
78 | (GDestroyNotify)environment_variable_destroy); | |
79 | trace->clocks = g_ptr_array_new_with_free_func( | |
80 | (GDestroyNotify)bt_ctf_clock_put); | |
81 | trace->streams = g_ptr_array_new_with_free_func( | |
82 | (GDestroyNotify)bt_ctf_stream_put); | |
83 | trace->stream_classes = g_ptr_array_new_with_free_func( | |
84 | (GDestroyNotify)bt_ctf_stream_class_put); | |
85 | if (!trace->environment || !trace->clocks || | |
86 | !trace->stream_classes || !trace->streams) { | |
87 | goto error_destroy; | |
88 | } | |
89 | ||
90 | /* Generate a trace UUID */ | |
91 | uuid_generate(trace->uuid); | |
92 | if (init_trace_packet_header(trace)) { | |
93 | goto error_destroy; | |
94 | } | |
95 | ||
96 | return trace; | |
97 | ||
98 | error_destroy: | |
99 | bt_ctf_trace_destroy(&trace->ref_count); | |
100 | trace = NULL; | |
101 | error: | |
102 | return trace; | |
103 | } | |
104 | ||
105 | void bt_ctf_trace_destroy(struct bt_ctf_ref *ref) | |
106 | { | |
107 | struct bt_ctf_trace *trace; | |
108 | ||
109 | if (!ref) { | |
110 | return; | |
111 | } | |
112 | ||
113 | trace = container_of(ref, struct bt_ctf_trace, ref_count); | |
114 | if (trace->environment) { | |
115 | g_ptr_array_free(trace->environment, TRUE); | |
116 | } | |
117 | ||
118 | if (trace->clocks) { | |
119 | g_ptr_array_free(trace->clocks, TRUE); | |
120 | } | |
121 | ||
122 | if (trace->streams) { | |
123 | g_ptr_array_free(trace->streams, TRUE); | |
124 | } | |
125 | ||
126 | if (trace->stream_classes) { | |
127 | g_ptr_array_free(trace->stream_classes, TRUE); | |
128 | } | |
129 | ||
d246b111 | 130 | bt_ctf_field_type_put(trace->packet_header_type); |
bc37ae52 JG |
131 | g_free(trace); |
132 | } | |
133 | ||
134 | struct bt_ctf_stream *bt_ctf_trace_create_stream(struct bt_ctf_trace *trace, | |
135 | struct bt_ctf_stream_class *stream_class) | |
136 | { | |
137 | int ret; | |
138 | int stream_class_found = 0; | |
139 | size_t i; | |
140 | struct bt_ctf_stream *stream = NULL; | |
141 | ||
142 | if (!trace || !stream_class) { | |
143 | goto error; | |
144 | } | |
145 | ||
d246b111 | 146 | stream = bt_ctf_stream_create(stream_class, trace); |
bc37ae52 JG |
147 | if (!stream) { |
148 | goto error; | |
149 | } | |
150 | ||
151 | for (i = 0; i < trace->stream_classes->len; i++) { | |
152 | if (trace->stream_classes->pdata[i] == stream_class) { | |
153 | stream_class_found = 1; | |
154 | } | |
155 | } | |
156 | ||
157 | if (!stream_class_found) { | |
158 | int64_t stream_id = bt_ctf_stream_class_get_id(stream_class); | |
159 | ||
160 | if (stream_id < 0) { | |
161 | /* Try to assign a new stream id */ | |
162 | if (bt_ctf_stream_class_set_id(stream->stream_class, | |
163 | trace->next_stream_id++)) { | |
164 | goto error; | |
165 | } | |
166 | } | |
167 | ||
168 | for (i = 0; i < trace->stream_classes->len; i++) { | |
169 | if (stream_id == bt_ctf_stream_class_get_id( | |
170 | trace->stream_classes->pdata[i])) { | |
171 | /* Duplicate stream id found */ | |
172 | goto error; | |
173 | } | |
174 | } | |
175 | bt_ctf_stream_class_get(stream->stream_class); | |
176 | g_ptr_array_add(trace->stream_classes, stream->stream_class); | |
177 | } | |
178 | ||
179 | bt_ctf_stream_get(stream); | |
180 | g_ptr_array_add(trace->streams, stream); | |
c35a1669 JG |
181 | |
182 | /* | |
183 | * Freeze the trace and its packet header. | |
184 | * | |
185 | * All field type byte orders set as "native" byte ordering can now be | |
186 | * safely set to trace's own endianness, including the stream class'. | |
187 | */ | |
188 | bt_ctf_field_type_set_native_byte_order(trace->packet_header_type, | |
189 | trace->byte_order); | |
190 | ret = bt_ctf_stream_class_set_byte_order(stream_class, | |
191 | trace->byte_order == LITTLE_ENDIAN ? | |
192 | BT_CTF_BYTE_ORDER_LITTLE_ENDIAN : BT_CTF_BYTE_ORDER_BIG_ENDIAN); | |
193 | if (ret) { | |
194 | goto error; | |
195 | } | |
196 | ||
29d9d76c | 197 | bt_ctf_stream_class_freeze(stream_class); |
bc37ae52 JG |
198 | trace->frozen = 1; |
199 | return stream; | |
bc37ae52 JG |
200 | error: |
201 | bt_ctf_stream_put(stream); | |
202 | return NULL; | |
203 | } | |
204 | ||
205 | int bt_ctf_trace_add_environment_field(struct bt_ctf_trace *trace, | |
206 | const char *name, | |
207 | const char *value) | |
208 | { | |
209 | struct environment_variable *var = NULL; | |
210 | char *escaped_value = NULL; | |
211 | int ret = 0; | |
212 | ||
654c1444 | 213 | if (!trace || !name || !value || bt_ctf_validate_identifier(name)) { |
bc37ae52 JG |
214 | ret = -1; |
215 | goto error; | |
216 | } | |
217 | ||
218 | if (strchr(name, ' ')) { | |
219 | ret = -1; | |
220 | goto error; | |
221 | } | |
222 | ||
223 | var = g_new0(struct environment_variable, 1); | |
224 | if (!var) { | |
225 | ret = -1; | |
226 | goto error; | |
227 | } | |
228 | ||
3487c9f3 | 229 | var->type = BT_ENVIRONMENT_FIELD_TYPE_STRING; |
bc37ae52 JG |
230 | escaped_value = g_strescape(value, NULL); |
231 | if (!escaped_value) { | |
232 | ret = -1; | |
233 | goto error; | |
234 | } | |
235 | ||
236 | var->name = g_string_new(name); | |
3487c9f3 | 237 | var->value.string = g_string_new(escaped_value); |
bc37ae52 | 238 | g_free(escaped_value); |
3487c9f3 | 239 | if (!var->name || !var->value.string) { |
bc37ae52 JG |
240 | ret = -1; |
241 | goto error; | |
242 | } | |
243 | ||
244 | g_ptr_array_add(trace->environment, var); | |
245 | return ret; | |
246 | ||
247 | error: | |
248 | if (var && var->name) { | |
249 | g_string_free(var->name, TRUE); | |
250 | } | |
251 | ||
3487c9f3 JG |
252 | if (var && var->value.string) { |
253 | g_string_free(var->value.string, TRUE); | |
254 | } | |
255 | ||
256 | g_free(var); | |
257 | return ret; | |
258 | } | |
259 | ||
260 | int bt_ctf_trace_add_environment_field_integer(struct bt_ctf_trace *trace, | |
261 | const char *name, | |
262 | int64_t value) | |
263 | { | |
264 | struct environment_variable *var = NULL; | |
265 | int ret = 0; | |
266 | ||
267 | if (!trace || !name) { | |
268 | ret = -1; | |
269 | goto error; | |
270 | } | |
271 | ||
272 | var = g_new0(struct environment_variable, 1); | |
273 | if (!var) { | |
274 | ret = -1; | |
275 | goto error; | |
276 | } | |
277 | ||
278 | var->type = BT_ENVIRONMENT_FIELD_TYPE_INTEGER; | |
279 | var->name = g_string_new(name); | |
280 | var->value.integer = value; | |
281 | if (!var->name) { | |
282 | ret = -1; | |
283 | goto error; | |
284 | } | |
285 | ||
286 | g_ptr_array_add(trace->environment, var); | |
287 | return ret; | |
288 | ||
289 | error: | |
290 | if (var && var->name) { | |
291 | g_string_free(var->name, TRUE); | |
bc37ae52 JG |
292 | } |
293 | ||
294 | g_free(var); | |
295 | return ret; | |
296 | } | |
297 | ||
298 | int bt_ctf_trace_add_clock(struct bt_ctf_trace *trace, | |
299 | struct bt_ctf_clock *clock) | |
300 | { | |
301 | int ret = 0; | |
302 | struct search_query query = { .value = clock, .found = 0 }; | |
303 | ||
304 | if (!trace || !clock) { | |
305 | ret = -1; | |
306 | goto end; | |
307 | } | |
308 | ||
309 | /* Check for duplicate clocks */ | |
310 | g_ptr_array_foreach(trace->clocks, value_exists, &query); | |
311 | if (query.found) { | |
312 | ret = -1; | |
313 | goto end; | |
314 | } | |
315 | ||
316 | bt_ctf_clock_get(clock); | |
317 | g_ptr_array_add(trace->clocks, clock); | |
318 | end: | |
319 | return ret; | |
320 | } | |
321 | ||
884cd6c3 JG |
322 | int bt_ctf_trace_get_clock_count(struct bt_ctf_trace *trace) |
323 | { | |
324 | int ret = -1; | |
325 | ||
326 | if (!trace) { | |
327 | goto end; | |
328 | } | |
329 | ||
330 | ret = trace->clocks->len; | |
331 | end: | |
332 | return ret; | |
333 | } | |
334 | ||
335 | struct bt_ctf_clock *bt_ctf_trace_get_clock(struct bt_ctf_trace *trace, | |
336 | int index) | |
337 | { | |
338 | struct bt_ctf_clock *clock = NULL; | |
339 | ||
340 | if (!trace || index < 0 || index >= trace->clocks->len) { | |
341 | goto end; | |
342 | } | |
343 | ||
344 | clock = g_ptr_array_index(trace->clocks, index); | |
345 | bt_ctf_clock_get(clock); | |
346 | end: | |
347 | return clock; | |
348 | } | |
349 | ||
bc37ae52 JG |
350 | BT_HIDDEN |
351 | const char *get_byte_order_string(int byte_order) | |
352 | { | |
353 | const char *string; | |
354 | ||
355 | switch (byte_order) { | |
356 | case LITTLE_ENDIAN: | |
357 | string = "le"; | |
358 | break; | |
359 | case BIG_ENDIAN: | |
360 | string = "be"; | |
361 | break; | |
362 | default: | |
363 | string = "unknown"; | |
364 | break; | |
365 | } | |
366 | ||
367 | return string; | |
368 | } | |
369 | ||
370 | static | |
371 | int append_trace_metadata(struct bt_ctf_trace *trace, | |
372 | struct metadata_context *context) | |
373 | { | |
374 | unsigned char *uuid = trace->uuid; | |
375 | int ret; | |
376 | ||
377 | g_string_append(context->string, "trace {\n"); | |
378 | ||
379 | g_string_append(context->string, "\tmajor = 1;\n"); | |
380 | g_string_append(context->string, "\tminor = 8;\n"); | |
381 | ||
382 | g_string_append_printf(context->string, | |
383 | "\tuuid = \"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\";\n", | |
384 | uuid[0], uuid[1], uuid[2], uuid[3], | |
385 | uuid[4], uuid[5], uuid[6], uuid[7], | |
386 | uuid[8], uuid[9], uuid[10], uuid[11], | |
387 | uuid[12], uuid[13], uuid[14], uuid[15]); | |
388 | g_string_append_printf(context->string, "\tbyte_order = %s;\n", | |
389 | get_byte_order_string(trace->byte_order)); | |
390 | ||
391 | g_string_append(context->string, "\tpacket.header := "); | |
392 | context->current_indentation_level++; | |
393 | g_string_assign(context->field_name, ""); | |
d246b111 | 394 | ret = bt_ctf_field_type_serialize(trace->packet_header_type, |
bc37ae52 JG |
395 | context); |
396 | if (ret) { | |
397 | goto end; | |
398 | } | |
399 | context->current_indentation_level--; | |
400 | ||
401 | g_string_append(context->string, ";\n};\n\n"); | |
402 | end: | |
403 | return ret; | |
404 | } | |
405 | ||
406 | static | |
407 | void append_env_field_metadata(struct environment_variable *var, | |
408 | struct metadata_context *context) | |
409 | { | |
3487c9f3 JG |
410 | switch (var->type) { |
411 | case BT_ENVIRONMENT_FIELD_TYPE_STRING: | |
412 | g_string_append_printf(context->string, "\t%s = \"%s\";\n", | |
413 | var->name->str, var->value.string->str); | |
414 | break; | |
415 | case BT_ENVIRONMENT_FIELD_TYPE_INTEGER: | |
416 | g_string_append_printf(context->string, "\t%s = %" PRId64 ";\n", | |
417 | var->name->str, var->value.integer); | |
418 | break; | |
419 | default: | |
420 | assert(0); | |
421 | } | |
bc37ae52 JG |
422 | } |
423 | ||
424 | static | |
425 | void append_env_metadata(struct bt_ctf_trace *trace, | |
426 | struct metadata_context *context) | |
427 | { | |
428 | if (trace->environment->len == 0) { | |
429 | return; | |
430 | } | |
431 | ||
432 | g_string_append(context->string, "env {\n"); | |
433 | g_ptr_array_foreach(trace->environment, | |
434 | (GFunc)append_env_field_metadata, context); | |
435 | g_string_append(context->string, "};\n\n"); | |
436 | } | |
437 | ||
438 | char *bt_ctf_trace_get_metadata_string(struct bt_ctf_trace *trace) | |
439 | { | |
440 | char *metadata = NULL; | |
441 | struct metadata_context *context = NULL; | |
442 | int err = 0; | |
443 | size_t i; | |
444 | ||
445 | if (!trace) { | |
446 | goto end; | |
447 | } | |
448 | ||
449 | context = g_new0(struct metadata_context, 1); | |
450 | if (!context) { | |
451 | goto end; | |
452 | } | |
453 | ||
454 | context->field_name = g_string_sized_new(DEFAULT_IDENTIFIER_SIZE); | |
455 | context->string = g_string_sized_new(DEFAULT_METADATA_STRING_SIZE); | |
456 | g_string_append(context->string, "/* CTF 1.8 */\n\n"); | |
457 | if (append_trace_metadata(trace, context)) { | |
458 | goto error; | |
459 | } | |
460 | append_env_metadata(trace, context); | |
461 | g_ptr_array_foreach(trace->clocks, | |
462 | (GFunc)bt_ctf_clock_serialize, context); | |
463 | ||
464 | for (i = 0; i < trace->stream_classes->len; i++) { | |
465 | err = bt_ctf_stream_class_serialize( | |
466 | trace->stream_classes->pdata[i], context); | |
467 | if (err) { | |
468 | goto error; | |
469 | } | |
470 | } | |
471 | ||
472 | metadata = context->string->str; | |
473 | error: | |
474 | g_string_free(context->string, err ? TRUE : FALSE); | |
475 | g_string_free(context->field_name, TRUE); | |
476 | g_free(context); | |
477 | end: | |
478 | return metadata; | |
479 | } | |
480 | ||
481 | int bt_ctf_trace_set_byte_order(struct bt_ctf_trace *trace, | |
482 | enum bt_ctf_byte_order byte_order) | |
483 | { | |
484 | int ret = 0; | |
485 | int internal_byte_order; | |
486 | ||
487 | if (!trace || trace->frozen) { | |
488 | ret = -1; | |
489 | goto end; | |
490 | } | |
491 | ||
492 | switch (byte_order) { | |
493 | case BT_CTF_BYTE_ORDER_NATIVE: | |
c35a1669 JG |
494 | /* |
495 | * This doesn't make sense since the CTF specification defines | |
496 | * the "native" byte order as "the byte order described in the | |
497 | * trace description". However, this behavior had been | |
498 | * implemented as part of v1.2 and is kept to maintain | |
499 | * compatibility. | |
500 | * | |
501 | * This may be changed on a major version bump only. | |
502 | */ | |
503 | internal_byte_order = (G_BYTE_ORDER == G_LITTLE_ENDIAN) ? | |
bc37ae52 JG |
504 | LITTLE_ENDIAN : BIG_ENDIAN; |
505 | break; | |
506 | case BT_CTF_BYTE_ORDER_LITTLE_ENDIAN: | |
507 | internal_byte_order = LITTLE_ENDIAN; | |
508 | break; | |
509 | case BT_CTF_BYTE_ORDER_BIG_ENDIAN: | |
510 | case BT_CTF_BYTE_ORDER_NETWORK: | |
511 | internal_byte_order = BIG_ENDIAN; | |
512 | break; | |
513 | default: | |
514 | ret = -1; | |
515 | goto end; | |
516 | } | |
517 | ||
518 | trace->byte_order = internal_byte_order; | |
bc37ae52 JG |
519 | end: |
520 | return ret; | |
521 | } | |
522 | ||
d246b111 JG |
523 | struct bt_ctf_field_type *bt_ctf_trace_get_packet_header_type( |
524 | struct bt_ctf_trace *trace) | |
525 | { | |
526 | struct bt_ctf_field_type *field_type = NULL; | |
527 | ||
528 | if (!trace) { | |
529 | goto end; | |
530 | } | |
531 | ||
532 | bt_ctf_field_type_get(trace->packet_header_type); | |
533 | field_type = trace->packet_header_type; | |
534 | end: | |
535 | return field_type; | |
536 | } | |
537 | ||
538 | int bt_ctf_trace_set_packet_header_type(struct bt_ctf_trace *trace, | |
539 | struct bt_ctf_field_type *packet_header_type) | |
540 | { | |
541 | int ret = 0; | |
542 | ||
543 | if (!trace || !packet_header_type || trace->frozen) { | |
544 | ret = -1; | |
545 | goto end; | |
546 | } | |
547 | ||
548 | /* packet_header_type must be a structure */ | |
549 | if (bt_ctf_field_type_get_type_id(packet_header_type) != | |
550 | CTF_TYPE_STRUCT) { | |
551 | ret = -1; | |
552 | goto end; | |
553 | } | |
554 | ||
555 | bt_ctf_field_type_get(packet_header_type); | |
556 | bt_ctf_field_type_put(trace->packet_header_type); | |
557 | trace->packet_header_type = packet_header_type; | |
558 | end: | |
559 | return ret; | |
560 | } | |
561 | ||
bc37ae52 JG |
562 | void bt_ctf_trace_get(struct bt_ctf_trace *trace) |
563 | { | |
564 | if (!trace) { | |
565 | return; | |
566 | } | |
567 | ||
568 | bt_ctf_ref_get(&trace->ref_count); | |
569 | } | |
570 | ||
571 | void bt_ctf_trace_put(struct bt_ctf_trace *trace) | |
572 | { | |
573 | if (!trace) { | |
574 | return; | |
575 | } | |
576 | ||
577 | bt_ctf_ref_put(&trace->ref_count, bt_ctf_trace_destroy); | |
578 | } | |
579 | ||
bc37ae52 JG |
580 | BT_HIDDEN |
581 | struct bt_ctf_field_type *get_field_type(enum field_type_alias alias) | |
582 | { | |
583 | unsigned int alignment, size; | |
584 | struct bt_ctf_field_type *field_type; | |
585 | ||
586 | if (alias >= NR_FIELD_TYPE_ALIAS) { | |
587 | return NULL; | |
588 | } | |
589 | ||
590 | alignment = field_type_aliases_alignments[alias]; | |
591 | size = field_type_aliases_sizes[alias]; | |
592 | field_type = bt_ctf_field_type_integer_create(size); | |
593 | bt_ctf_field_type_set_alignment(field_type, alignment); | |
594 | return field_type; | |
595 | } | |
596 | ||
597 | static | |
598 | int init_trace_packet_header(struct bt_ctf_trace *trace) | |
599 | { | |
bc37ae52 | 600 | int ret = 0; |
d246b111 | 601 | struct bt_ctf_field *magic = NULL, *uuid_array = NULL; |
bc37ae52 JG |
602 | struct bt_ctf_field_type *_uint32_t = |
603 | get_field_type(FIELD_TYPE_ALIAS_UINT32_T); | |
604 | struct bt_ctf_field_type *_uint8_t = | |
605 | get_field_type(FIELD_TYPE_ALIAS_UINT8_T); | |
606 | struct bt_ctf_field_type *trace_packet_header_type = | |
607 | bt_ctf_field_type_structure_create(); | |
608 | struct bt_ctf_field_type *uuid_array_type = | |
609 | bt_ctf_field_type_array_create(_uint8_t, 16); | |
610 | ||
611 | if (!trace_packet_header_type || !uuid_array_type) { | |
612 | ret = -1; | |
613 | goto end; | |
614 | } | |
615 | ||
bc37ae52 JG |
616 | ret = bt_ctf_field_type_structure_add_field(trace_packet_header_type, |
617 | _uint32_t, "magic"); | |
618 | if (ret) { | |
619 | goto end; | |
620 | } | |
621 | ||
622 | ret = bt_ctf_field_type_structure_add_field(trace_packet_header_type, | |
623 | uuid_array_type, "uuid"); | |
624 | if (ret) { | |
625 | goto end; | |
626 | } | |
627 | ||
628 | ret = bt_ctf_field_type_structure_add_field(trace_packet_header_type, | |
629 | _uint32_t, "stream_id"); | |
630 | if (ret) { | |
631 | goto end; | |
632 | } | |
633 | ||
662e778c JG |
634 | ret = bt_ctf_trace_set_packet_header_type(trace, |
635 | trace_packet_header_type); | |
636 | if (ret) { | |
637 | goto end; | |
638 | } | |
bc37ae52 JG |
639 | end: |
640 | bt_ctf_field_type_put(uuid_array_type); | |
641 | bt_ctf_field_type_put(_uint32_t); | |
642 | bt_ctf_field_type_put(_uint8_t); | |
643 | bt_ctf_field_put(magic); | |
644 | bt_ctf_field_put(uuid_array); | |
662e778c | 645 | bt_ctf_field_type_put(trace_packet_header_type); |
bc37ae52 JG |
646 | |
647 | return ret; | |
648 | } | |
649 | ||
650 | static | |
651 | void environment_variable_destroy(struct environment_variable *var) | |
652 | { | |
653 | g_string_free(var->name, TRUE); | |
3487c9f3 JG |
654 | if (var->type == BT_ENVIRONMENT_FIELD_TYPE_STRING) { |
655 | g_string_free(var->value.string, TRUE); | |
656 | } | |
bc37ae52 JG |
657 | g_free(var); |
658 | } |