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1c822dfb JG |
1 | /* |
2 | * event.c | |
3 | * | |
4 | * Babeltrace CTF IR - Event | |
5 | * | |
6 | * Copyright 2013, 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/fields-internal.h> | |
30 | #include <babeltrace/ctf-ir/field-types-internal.h> | |
31 | #include <babeltrace/ctf-ir/event-internal.h> | |
32 | #include <babeltrace/ctf-ir/event-class.h> | |
33 | #include <babeltrace/ctf-ir/event-class-internal.h> | |
34 | #include <babeltrace/ctf-ir/stream-class.h> | |
35 | #include <babeltrace/ctf-ir/stream-class-internal.h> | |
36 | #include <babeltrace/ctf-ir/stream-internal.h> | |
37 | #include <babeltrace/ctf-ir/packet.h> | |
38 | #include <babeltrace/ctf-ir/packet-internal.h> | |
39 | #include <babeltrace/ctf-ir/trace-internal.h> | |
40 | #include <babeltrace/ctf-ir/validation-internal.h> | |
41 | #include <babeltrace/ctf-ir/packet-internal.h> | |
42 | #include <babeltrace/ctf-ir/utils.h> | |
43 | #include <babeltrace/ref.h> | |
44 | #include <babeltrace/ctf-ir/attributes-internal.h> | |
45 | #include <babeltrace/compiler.h> | |
46 | ||
47 | static | |
48 | void bt_ctf_event_destroy(struct bt_object *obj); | |
49 | static | |
50 | int set_integer_field_value(struct bt_ctf_field *field, uint64_t value); | |
51 | ||
52 | struct bt_ctf_event *bt_ctf_event_create(struct bt_ctf_event_class *event_class) | |
53 | { | |
54 | int ret; | |
55 | enum bt_ctf_validation_flag validation_flags = | |
56 | BT_CTF_VALIDATION_FLAG_STREAM | | |
57 | BT_CTF_VALIDATION_FLAG_EVENT; | |
58 | struct bt_ctf_event *event = NULL; | |
59 | struct bt_ctf_trace *trace = NULL; | |
60 | struct bt_ctf_stream_class *stream_class = NULL; | |
61 | struct bt_ctf_field_type *packet_header_type = NULL; | |
62 | struct bt_ctf_field_type *packet_context_type = NULL; | |
63 | struct bt_ctf_field_type *event_header_type = NULL; | |
64 | struct bt_ctf_field_type *stream_event_ctx_type = NULL; | |
65 | struct bt_ctf_field_type *event_context_type = NULL; | |
66 | struct bt_ctf_field_type *event_payload_type = NULL; | |
67 | struct bt_ctf_field *event_header = NULL; | |
68 | struct bt_ctf_field *stream_event_context = NULL; | |
69 | struct bt_ctf_field *event_context = NULL; | |
70 | struct bt_ctf_field *event_payload = NULL; | |
71 | struct bt_value *environment = NULL; | |
72 | struct bt_ctf_validation_output validation_output = { 0 }; | |
73 | int trace_valid = 0; | |
74 | ||
75 | if (!event_class) { | |
76 | goto error; | |
77 | } | |
78 | ||
79 | stream_class = bt_ctf_event_class_get_stream_class(event_class); | |
80 | ||
81 | /* | |
82 | * We disallow the creation of an event if its event class has not been | |
83 | * associated to a stream class. | |
84 | */ | |
85 | if (!stream_class) { | |
86 | goto error; | |
87 | } | |
88 | ||
89 | /* A stream class should always have an existing event header type */ | |
90 | assert(stream_class->event_header_type); | |
91 | ||
92 | /* The event class was frozen when added to its stream class */ | |
93 | assert(event_class->frozen); | |
94 | ||
95 | /* Validate the trace (if any), the stream class, and the event class */ | |
96 | trace = bt_ctf_stream_class_get_trace(stream_class); | |
97 | if (trace) { | |
98 | packet_header_type = bt_ctf_trace_get_packet_header_type(trace); | |
99 | trace_valid = trace->valid; | |
100 | assert(trace_valid); | |
101 | environment = trace->environment; | |
102 | } | |
103 | ||
104 | packet_context_type = bt_ctf_stream_class_get_packet_context_type( | |
105 | stream_class); | |
106 | event_header_type = bt_ctf_stream_class_get_event_header_type( | |
107 | stream_class); | |
108 | stream_event_ctx_type = bt_ctf_stream_class_get_event_context_type( | |
109 | stream_class); | |
110 | event_context_type = bt_ctf_event_class_get_context_type(event_class); | |
111 | event_payload_type = bt_ctf_event_class_get_payload_type(event_class); | |
112 | ret = bt_ctf_validate_class_types(environment, packet_header_type, | |
113 | packet_context_type, event_header_type, stream_event_ctx_type, | |
114 | event_context_type, event_payload_type, trace_valid, | |
115 | stream_class->valid, event_class->valid, | |
116 | &validation_output, validation_flags); | |
117 | BT_PUT(packet_header_type); | |
118 | BT_PUT(packet_context_type); | |
119 | BT_PUT(event_header_type); | |
120 | BT_PUT(stream_event_ctx_type); | |
121 | BT_PUT(event_context_type); | |
122 | BT_PUT(event_payload_type); | |
123 | if (ret) { | |
124 | /* | |
125 | * This means something went wrong during the validation | |
126 | * process, not that the objects are invalid. | |
127 | */ | |
128 | goto error; | |
129 | } | |
130 | ||
131 | if ((validation_output.valid_flags & validation_flags) != | |
132 | validation_flags) { | |
133 | /* Invalid trace/stream class/event class */ | |
134 | goto error; | |
135 | } | |
136 | ||
137 | /* | |
138 | * At this point we know the trace (if associated to the stream | |
139 | * class), the stream class, and the event class, with their | |
140 | * current types, are valid. We may proceed with creating | |
141 | * the event. | |
142 | */ | |
143 | event = g_new0(struct bt_ctf_event, 1); | |
144 | if (!event) { | |
145 | goto error; | |
146 | } | |
147 | ||
148 | bt_object_init(event, bt_ctf_event_destroy); | |
149 | ||
150 | /* | |
151 | * event does not share a common ancestor with the event class; it has | |
152 | * to guarantee its existence by holding a reference. This reference | |
153 | * shall be released once the event is associated to a stream since, | |
154 | * from that point, the event and its class will share the same | |
155 | * lifetime. | |
156 | */ | |
157 | event->event_class = bt_get(event_class); | |
158 | event->clock_values = g_hash_table_new_full(g_direct_hash, | |
159 | g_direct_equal, NULL, g_free); | |
160 | event_header = | |
161 | bt_ctf_field_create(validation_output.event_header_type); | |
162 | if (!event_header) { | |
163 | goto error; | |
164 | } | |
165 | ||
166 | if (validation_output.stream_event_ctx_type) { | |
167 | stream_event_context = bt_ctf_field_create( | |
168 | validation_output.stream_event_ctx_type); | |
169 | if (!stream_event_context) { | |
170 | goto error; | |
171 | } | |
172 | } | |
173 | ||
174 | if (validation_output.event_context_type) { | |
175 | event_context = bt_ctf_field_create( | |
176 | validation_output.event_context_type); | |
177 | if (!event_context) { | |
178 | goto error; | |
179 | } | |
180 | } | |
181 | ||
182 | if (validation_output.event_payload_type) { | |
183 | event_payload = bt_ctf_field_create( | |
184 | validation_output.event_payload_type); | |
185 | if (!event_payload) { | |
186 | goto error; | |
187 | } | |
188 | } | |
189 | ||
190 | /* | |
191 | * At this point all the fields are created, potentially from | |
192 | * validated copies of field types, so that the field types and | |
193 | * fields can be replaced in the trace, stream class, | |
194 | * event class, and created event. | |
195 | */ | |
196 | bt_ctf_validation_replace_types(trace, stream_class, | |
197 | event_class, &validation_output, validation_flags); | |
198 | BT_MOVE(event->event_header, event_header); | |
199 | BT_MOVE(event->stream_event_context, stream_event_context); | |
200 | BT_MOVE(event->context_payload, event_context); | |
201 | BT_MOVE(event->fields_payload, event_payload); | |
202 | ||
203 | /* | |
204 | * Put what was not moved in bt_ctf_validation_replace_types(). | |
205 | */ | |
206 | bt_ctf_validation_output_put_types(&validation_output); | |
207 | ||
208 | /* | |
209 | * Freeze the stream class since the event header must not be changed | |
210 | * anymore. | |
211 | */ | |
212 | bt_ctf_stream_class_freeze(stream_class); | |
213 | ||
214 | /* | |
215 | * Mark stream class, and event class as valid since | |
216 | * they're all frozen now. | |
217 | */ | |
218 | stream_class->valid = 1; | |
219 | event_class->valid = 1; | |
220 | ||
221 | /* Put stuff we borrowed from the event class */ | |
222 | BT_PUT(stream_class); | |
223 | BT_PUT(trace); | |
224 | ||
225 | return event; | |
226 | ||
227 | error: | |
228 | bt_ctf_validation_output_put_types(&validation_output); | |
229 | BT_PUT(event); | |
230 | BT_PUT(stream_class); | |
231 | BT_PUT(trace); | |
232 | BT_PUT(event_header); | |
233 | BT_PUT(stream_event_context); | |
234 | BT_PUT(event_context); | |
235 | BT_PUT(event_payload); | |
236 | assert(!packet_header_type); | |
237 | assert(!packet_context_type); | |
238 | assert(!event_header_type); | |
239 | assert(!stream_event_ctx_type); | |
240 | assert(!event_context_type); | |
241 | assert(!event_payload_type); | |
242 | ||
243 | return event; | |
244 | } | |
245 | ||
246 | struct bt_ctf_event_class *bt_ctf_event_get_class(struct bt_ctf_event *event) | |
247 | { | |
248 | struct bt_ctf_event_class *event_class = NULL; | |
249 | ||
250 | if (!event) { | |
251 | goto end; | |
252 | } | |
253 | ||
254 | event_class = event->event_class; | |
255 | bt_get(event_class); | |
256 | end: | |
257 | return event_class; | |
258 | } | |
259 | ||
260 | struct bt_ctf_stream *bt_ctf_event_get_stream(struct bt_ctf_event *event) | |
261 | { | |
262 | struct bt_ctf_stream *stream = NULL; | |
263 | ||
264 | if (!event) { | |
265 | goto end; | |
266 | } | |
267 | ||
268 | /* | |
269 | * If the event has a parent, then this is its (writer) stream. | |
270 | * If the event has no parent, then if it has a packet, this | |
271 | * is its (non-writer) stream. | |
272 | */ | |
273 | if (event->base.parent) { | |
274 | stream = (struct bt_ctf_stream *) bt_object_get_parent(event); | |
275 | } else { | |
276 | if (event->packet) { | |
277 | stream = bt_get(event->packet->stream); | |
278 | } | |
279 | } | |
280 | ||
281 | end: | |
282 | return stream; | |
283 | } | |
284 | ||
285 | struct bt_ctf_clock *bt_ctf_event_get_clock(struct bt_ctf_event *event) | |
286 | { | |
287 | struct bt_ctf_clock *clock = NULL; | |
288 | struct bt_ctf_event_class *event_class; | |
289 | struct bt_ctf_stream_class *stream_class; | |
290 | ||
291 | if (!event) { | |
292 | goto end; | |
293 | } | |
294 | ||
295 | event_class = bt_ctf_event_get_class(event); | |
296 | if (!event_class) { | |
297 | goto end; | |
298 | } | |
299 | ||
300 | stream_class = bt_ctf_event_class_get_stream_class(event_class); | |
301 | if (!stream_class) { | |
302 | goto error_put_event_class; | |
303 | } | |
304 | ||
305 | clock = bt_ctf_stream_class_get_clock(stream_class); | |
306 | if (!clock) { | |
307 | goto error_put_stream_class; | |
308 | } | |
309 | ||
310 | error_put_stream_class: | |
311 | bt_put(stream_class); | |
312 | error_put_event_class: | |
313 | bt_put(event_class); | |
314 | end: | |
315 | return clock; | |
316 | } | |
317 | ||
318 | int bt_ctf_event_set_payload(struct bt_ctf_event *event, | |
319 | const char *name, | |
320 | struct bt_ctf_field *payload) | |
321 | { | |
322 | int ret = 0; | |
323 | ||
324 | if (!event || !payload || event->frozen) { | |
325 | ret = -1; | |
326 | goto end; | |
327 | } | |
328 | ||
329 | if (name) { | |
330 | ret = bt_ctf_field_structure_set_field(event->fields_payload, | |
331 | name, payload); | |
332 | } else { | |
333 | struct bt_ctf_field_type *payload_type; | |
334 | ||
335 | payload_type = bt_ctf_field_get_type(payload); | |
336 | ||
337 | if (bt_ctf_field_type_compare(payload_type, | |
338 | event->event_class->fields) == 0) { | |
339 | bt_put(event->fields_payload); | |
340 | bt_get(payload); | |
341 | event->fields_payload = payload; | |
342 | } else { | |
343 | ret = -1; | |
344 | } | |
345 | ||
346 | bt_put(payload_type); | |
347 | } | |
348 | end: | |
349 | return ret; | |
350 | } | |
351 | ||
352 | struct bt_ctf_field *bt_ctf_event_get_payload_field(struct bt_ctf_event *event) | |
353 | { | |
354 | struct bt_ctf_field *payload = NULL; | |
355 | ||
356 | if (!event || !event->fields_payload) { | |
357 | goto end; | |
358 | } | |
359 | ||
360 | payload = event->fields_payload; | |
361 | bt_get(payload); | |
362 | end: | |
363 | return payload; | |
364 | } | |
365 | ||
366 | int bt_ctf_event_set_payload_field(struct bt_ctf_event *event, | |
367 | struct bt_ctf_field *payload) | |
368 | { | |
369 | int ret = 0; | |
370 | struct bt_ctf_field_type *payload_type = NULL; | |
371 | ||
372 | if (!event || !payload || event->frozen) { | |
373 | ret = -1; | |
374 | goto end; | |
375 | } | |
376 | ||
377 | payload_type = bt_ctf_field_get_type(payload); | |
378 | if (!payload_type) { | |
379 | ret = -1; | |
380 | goto end; | |
381 | } | |
382 | ||
383 | if (bt_ctf_field_type_get_type_id(payload_type) != | |
384 | BT_CTF_TYPE_ID_STRUCT) { | |
385 | ret = -1; | |
386 | goto end; | |
387 | } | |
388 | ||
389 | bt_get(payload); | |
390 | bt_put(event->fields_payload); | |
391 | event->fields_payload = payload; | |
392 | ||
393 | end: | |
394 | bt_put(payload_type); | |
395 | return ret; | |
396 | } | |
397 | ||
398 | struct bt_ctf_field *bt_ctf_event_get_payload(struct bt_ctf_event *event, | |
399 | const char *name) | |
400 | { | |
401 | struct bt_ctf_field *field = NULL; | |
402 | ||
403 | if (!event) { | |
404 | goto end; | |
405 | } | |
406 | ||
407 | if (name) { | |
408 | field = bt_ctf_field_structure_get_field(event->fields_payload, | |
409 | name); | |
410 | } else { | |
411 | field = event->fields_payload; | |
412 | bt_get(field); | |
413 | } | |
414 | end: | |
415 | return field; | |
416 | } | |
417 | ||
418 | struct bt_ctf_field *bt_ctf_event_get_payload_by_index( | |
419 | struct bt_ctf_event *event, int index) | |
420 | { | |
421 | struct bt_ctf_field *field = NULL; | |
422 | ||
423 | if (!event || index < 0) { | |
424 | goto end; | |
425 | } | |
426 | ||
427 | field = bt_ctf_field_structure_get_field_by_index(event->fields_payload, | |
428 | index); | |
429 | end: | |
430 | return field; | |
431 | } | |
432 | ||
433 | struct bt_ctf_field *bt_ctf_event_get_header( | |
434 | struct bt_ctf_event *event) | |
435 | { | |
436 | struct bt_ctf_field *header = NULL; | |
437 | ||
438 | if (!event || !event->event_header) { | |
439 | goto end; | |
440 | } | |
441 | ||
442 | header = event->event_header; | |
443 | bt_get(header); | |
444 | end: | |
445 | return header; | |
446 | } | |
447 | ||
448 | int bt_ctf_event_set_header(struct bt_ctf_event *event, | |
449 | struct bt_ctf_field *header) | |
450 | { | |
451 | int ret = 0; | |
452 | struct bt_ctf_field_type *field_type = NULL; | |
453 | struct bt_ctf_stream_class *stream_class = NULL; | |
454 | ||
455 | if (!event || !header || event->frozen) { | |
456 | ret = -1; | |
457 | goto end; | |
458 | } | |
459 | ||
460 | stream_class = (struct bt_ctf_stream_class *) bt_object_get_parent( | |
461 | event->event_class); | |
462 | /* | |
463 | * Ensure the provided header's type matches the one registered to the | |
464 | * stream class. | |
465 | */ | |
466 | field_type = bt_ctf_field_get_type(header); | |
467 | if (bt_ctf_field_type_compare(field_type, | |
468 | stream_class->event_header_type)) { | |
469 | ret = -1; | |
470 | goto end; | |
471 | } | |
472 | ||
473 | bt_get(header); | |
474 | bt_put(event->event_header); | |
475 | event->event_header = header; | |
476 | end: | |
477 | bt_put(stream_class); | |
478 | bt_put(field_type); | |
479 | return ret; | |
480 | } | |
481 | ||
482 | struct bt_ctf_field *bt_ctf_event_get_event_context( | |
483 | struct bt_ctf_event *event) | |
484 | { | |
485 | struct bt_ctf_field *context = NULL; | |
486 | ||
487 | if (!event || !event->context_payload) { | |
488 | goto end; | |
489 | } | |
490 | ||
491 | context = event->context_payload; | |
492 | bt_get(context); | |
493 | end: | |
494 | return context; | |
495 | } | |
496 | ||
497 | int bt_ctf_event_set_event_context(struct bt_ctf_event *event, | |
498 | struct bt_ctf_field *context) | |
499 | { | |
500 | int ret = 0; | |
501 | struct bt_ctf_field_type *field_type = NULL; | |
502 | ||
503 | if (!event || !context || event->frozen) { | |
504 | ret = -1; | |
505 | goto end; | |
506 | } | |
507 | ||
508 | field_type = bt_ctf_field_get_type(context); | |
509 | if (bt_ctf_field_type_compare(field_type, | |
510 | event->event_class->context)) { | |
511 | ret = -1; | |
512 | goto end; | |
513 | } | |
514 | ||
515 | bt_get(context); | |
516 | bt_put(event->context_payload); | |
517 | event->context_payload = context; | |
518 | end: | |
519 | bt_put(field_type); | |
520 | return ret; | |
521 | } | |
522 | ||
523 | struct bt_ctf_field *bt_ctf_event_get_stream_event_context( | |
524 | struct bt_ctf_event *event) | |
525 | { | |
526 | struct bt_ctf_field *stream_event_context = NULL; | |
527 | ||
528 | if (!event || !event->stream_event_context) { | |
529 | goto end; | |
530 | } | |
531 | ||
532 | stream_event_context = event->stream_event_context; | |
533 | end: | |
534 | return bt_get(stream_event_context); | |
535 | } | |
536 | ||
537 | int bt_ctf_event_set_stream_event_context(struct bt_ctf_event *event, | |
538 | struct bt_ctf_field *stream_event_context) | |
539 | { | |
540 | int ret = 0; | |
541 | struct bt_ctf_field_type *field_type = NULL; | |
542 | struct bt_ctf_stream_class *stream_class = NULL; | |
543 | ||
544 | if (!event || !stream_event_context || event->frozen) { | |
545 | ret = -1; | |
546 | goto end; | |
547 | } | |
548 | ||
549 | stream_class = bt_ctf_event_class_get_stream_class(event->event_class); | |
550 | /* | |
551 | * We should not have been able to create the event without associating | |
552 | * the event class to a stream class. | |
553 | */ | |
554 | assert(stream_class); | |
555 | ||
556 | field_type = bt_ctf_field_get_type(stream_event_context); | |
557 | if (bt_ctf_field_type_compare(field_type, | |
558 | stream_class->event_context_type)) { | |
559 | ret = -1; | |
560 | goto end; | |
561 | } | |
562 | ||
563 | bt_get(stream_event_context); | |
564 | BT_MOVE(event->stream_event_context, stream_event_context); | |
565 | end: | |
566 | BT_PUT(stream_class); | |
567 | bt_put(field_type); | |
568 | return ret; | |
569 | } | |
570 | ||
571 | void bt_ctf_event_get(struct bt_ctf_event *event) | |
572 | { | |
573 | bt_get(event); | |
574 | } | |
575 | ||
576 | void bt_ctf_event_put(struct bt_ctf_event *event) | |
577 | { | |
578 | bt_put(event); | |
579 | } | |
580 | ||
581 | void bt_ctf_event_destroy(struct bt_object *obj) | |
582 | { | |
583 | struct bt_ctf_event *event; | |
584 | ||
585 | event = container_of(obj, struct bt_ctf_event, base); | |
586 | if (!event->base.parent) { | |
587 | /* | |
588 | * Event was keeping a reference to its class since it shared no | |
589 | * common ancestor with it to guarantee they would both have the | |
590 | * same lifetime. | |
591 | */ | |
592 | bt_put(event->event_class); | |
593 | } | |
594 | g_hash_table_destroy(event->clock_values); | |
595 | bt_put(event->event_header); | |
596 | bt_put(event->stream_event_context); | |
597 | bt_put(event->context_payload); | |
598 | bt_put(event->fields_payload); | |
599 | bt_put(event->packet); | |
600 | g_free(event); | |
601 | } | |
602 | ||
603 | static | |
604 | int set_integer_field_value(struct bt_ctf_field* field, uint64_t value) | |
605 | { | |
606 | int ret = 0; | |
607 | struct bt_ctf_field_type *field_type = NULL; | |
608 | ||
609 | if (!field) { | |
610 | ret = -1; | |
611 | goto end; | |
612 | } | |
613 | ||
614 | if (!bt_ctf_field_validate(field)) { | |
615 | /* Payload already set, skip! (not an error) */ | |
616 | goto end; | |
617 | } | |
618 | ||
619 | field_type = bt_ctf_field_get_type(field); | |
620 | assert(field_type); | |
621 | ||
622 | if (bt_ctf_field_type_get_type_id(field_type) != | |
623 | BT_CTF_TYPE_ID_INTEGER) { | |
624 | /* Not an integer and the value is unset, error. */ | |
625 | ret = -1; | |
626 | goto end; | |
627 | } | |
628 | ||
629 | if (bt_ctf_field_type_integer_get_signed(field_type)) { | |
630 | ret = bt_ctf_field_signed_integer_set_value(field, (int64_t) value); | |
631 | if (ret) { | |
632 | /* Value is out of range, error. */ | |
633 | goto end; | |
634 | } | |
635 | } else { | |
636 | ret = bt_ctf_field_unsigned_integer_set_value(field, value); | |
637 | if (ret) { | |
638 | /* Value is out of range, error. */ | |
639 | goto end; | |
640 | } | |
641 | } | |
642 | end: | |
643 | bt_put(field_type); | |
644 | return ret; | |
645 | } | |
646 | ||
647 | BT_HIDDEN | |
648 | int bt_ctf_event_validate(struct bt_ctf_event *event) | |
649 | { | |
650 | /* Make sure each field's payload has been set */ | |
651 | int ret; | |
652 | struct bt_ctf_stream_class *stream_class = NULL; | |
653 | ||
654 | assert(event); | |
655 | ret = bt_ctf_field_validate(event->event_header); | |
656 | if (ret) { | |
657 | goto end; | |
658 | } | |
659 | ||
660 | stream_class = bt_ctf_event_class_get_stream_class(event->event_class); | |
661 | /* | |
662 | * We should not have been able to create the event without associating | |
663 | * the event class to a stream class. | |
664 | */ | |
665 | assert(stream_class); | |
666 | if (stream_class->event_context_type) { | |
667 | ret = bt_ctf_field_validate(event->stream_event_context); | |
668 | if (ret) { | |
669 | goto end; | |
670 | } | |
671 | } | |
672 | ||
673 | ret = bt_ctf_field_validate(event->fields_payload); | |
674 | if (ret) { | |
675 | goto end; | |
676 | } | |
677 | ||
678 | if (event->event_class->context) { | |
679 | ret = bt_ctf_field_validate(event->context_payload); | |
680 | } | |
681 | end: | |
682 | bt_put(stream_class); | |
683 | return ret; | |
684 | } | |
685 | ||
686 | BT_HIDDEN | |
687 | int bt_ctf_event_serialize(struct bt_ctf_event *event, | |
688 | struct ctf_stream_pos *pos) | |
689 | { | |
690 | int ret = 0; | |
691 | ||
692 | assert(event); | |
693 | assert(pos); | |
694 | if (event->context_payload) { | |
695 | ret = bt_ctf_field_serialize(event->context_payload, pos); | |
696 | if (ret) { | |
697 | goto end; | |
698 | } | |
699 | } | |
700 | ||
701 | if (event->fields_payload) { | |
702 | ret = bt_ctf_field_serialize(event->fields_payload, pos); | |
703 | if (ret) { | |
704 | goto end; | |
705 | } | |
706 | } | |
707 | end: | |
708 | return ret; | |
709 | } | |
710 | ||
711 | BT_HIDDEN | |
712 | int bt_ctf_event_populate_event_header(struct bt_ctf_event *event) | |
713 | { | |
714 | int ret = 0; | |
715 | struct bt_ctf_field *id_field = NULL, *timestamp_field = NULL; | |
716 | ||
717 | if (!event || event->frozen) { | |
718 | ret = -1; | |
719 | goto end; | |
720 | } | |
721 | ||
722 | id_field = bt_ctf_field_structure_get_field(event->event_header, "id"); | |
723 | if (id_field) { | |
724 | ret = set_integer_field_value(id_field, | |
725 | (uint64_t) bt_ctf_event_class_get_id( | |
726 | event->event_class)); | |
727 | if (ret) { | |
728 | goto end; | |
729 | } | |
730 | } | |
731 | ||
732 | timestamp_field = bt_ctf_field_structure_get_field(event->event_header, | |
733 | "timestamp"); | |
734 | if (timestamp_field) { | |
735 | struct bt_ctf_field_type *timestamp_field_type = | |
736 | bt_ctf_field_get_type(timestamp_field); | |
737 | struct bt_ctf_clock *mapped_clock; | |
738 | ||
739 | assert(timestamp_field_type); | |
740 | mapped_clock = bt_ctf_field_type_integer_get_mapped_clock( | |
741 | timestamp_field_type); | |
742 | bt_put(timestamp_field_type); | |
743 | if (mapped_clock) { | |
744 | int64_t timestamp; | |
745 | ||
746 | ret = bt_ctf_clock_get_time(mapped_clock, ×tamp); | |
747 | bt_put(mapped_clock); | |
748 | if (ret) { | |
749 | goto end; | |
750 | } | |
751 | ||
752 | ret = set_integer_field_value(timestamp_field, | |
753 | timestamp); | |
754 | if (ret) { | |
755 | goto end; | |
756 | } | |
757 | } | |
758 | } | |
759 | end: | |
760 | bt_put(id_field); | |
761 | bt_put(timestamp_field); | |
762 | return ret; | |
763 | } | |
764 | ||
765 | int bt_ctf_event_set_packet(struct bt_ctf_event *event, | |
766 | struct bt_ctf_packet *packet) | |
767 | { | |
768 | struct bt_ctf_stream_class *event_stream_class = NULL; | |
769 | struct bt_ctf_stream_class *packet_stream_class = NULL; | |
770 | struct bt_ctf_stream *stream = NULL; | |
771 | int ret = 0; | |
772 | ||
773 | if (!event || !packet || event->frozen) { | |
774 | ret = -1; | |
775 | goto end; | |
776 | } | |
777 | ||
778 | /* | |
779 | * Make sure the new packet was created by this event's | |
780 | * stream, if it is set. | |
781 | */ | |
782 | stream = bt_ctf_event_get_stream(event); | |
783 | if (stream) { | |
784 | if (packet->stream != stream) { | |
785 | ret = -1; | |
786 | goto end; | |
787 | } | |
788 | } else { | |
789 | event_stream_class = | |
790 | bt_ctf_event_class_get_stream_class(event->event_class); | |
791 | packet_stream_class = | |
792 | bt_ctf_stream_get_class(packet->stream); | |
793 | ||
794 | assert(event_stream_class); | |
795 | assert(packet_stream_class); | |
796 | ||
797 | if (event_stream_class != packet_stream_class) { | |
798 | ret = -1; | |
799 | goto end; | |
800 | } | |
801 | } | |
802 | ||
803 | bt_get(packet); | |
804 | BT_MOVE(event->packet, packet); | |
805 | ||
806 | end: | |
807 | BT_PUT(stream); | |
808 | BT_PUT(event_stream_class); | |
809 | BT_PUT(packet_stream_class); | |
810 | ||
811 | return ret; | |
812 | } | |
813 | ||
814 | BT_HIDDEN | |
815 | void bt_ctf_event_freeze(struct bt_ctf_event *event) | |
816 | { | |
817 | assert(event); | |
818 | bt_ctf_packet_freeze(event->packet); | |
819 | bt_ctf_field_freeze(event->event_header); | |
820 | bt_ctf_field_freeze(event->stream_event_context); | |
821 | bt_ctf_field_freeze(event->context_payload); | |
822 | bt_ctf_field_freeze(event->fields_payload); | |
823 | event->frozen = 1; | |
824 | } | |
825 | ||
826 | static | |
827 | void insert_stream_clock_value_into_event_clock_values(gpointer key, | |
828 | gpointer value, | |
829 | gpointer data) | |
830 | { | |
831 | struct bt_ctf_event *event = data; | |
832 | uint64_t *clock_value; | |
833 | ||
834 | assert(event); | |
835 | ||
836 | /* Copy clock value because it belongs to the hash table */ | |
837 | clock_value = g_new0(uint64_t, 1); | |
838 | *clock_value = *((uint64_t *) value); | |
839 | ||
840 | /* Insert copy into event clock values */ | |
841 | g_hash_table_insert(event->clock_values, key, clock_value); | |
842 | } | |
843 | ||
844 | BT_HIDDEN | |
845 | int bt_ctf_event_register_stream_clock_values(struct bt_ctf_event *event) | |
846 | { | |
847 | int ret = 0; | |
848 | struct bt_ctf_stream *stream; | |
849 | ||
850 | stream = bt_ctf_event_get_stream(event); | |
851 | assert(stream); | |
852 | g_hash_table_remove_all(event->clock_values); | |
853 | g_hash_table_foreach(stream->clock_values, | |
854 | insert_stream_clock_value_into_event_clock_values, event); | |
855 | BT_PUT(stream); | |
856 | ||
857 | return ret; | |
858 | } | |
859 | ||
860 | uint64_t bt_ctf_event_get_clock_value(struct bt_ctf_event *event, | |
861 | struct bt_ctf_clock *clock) | |
862 | { | |
863 | uint64_t ret = -1ULL; | |
864 | uint64_t *clock_value; | |
865 | ||
866 | if (!event || !clock) { | |
867 | goto end; | |
868 | } | |
869 | ||
870 | clock_value = g_hash_table_lookup(event->clock_values, clock); | |
871 | if (!clock_value) { | |
872 | goto end; | |
873 | } | |
874 | ||
875 | ret = *clock_value; | |
876 | ||
877 | end: | |
878 | return ret; | |
879 | } |