Commit | Line | Data |
---|---|---|
1aca5200 | 1 | /* |
0235b0db | 2 | * SPDX-License-Identifier: MIT |
1aca5200 | 3 | * |
0235b0db | 4 | * Copyright 2019 Francis Deslauriers <francis.deslauriers@efficios.com> |
1aca5200 FD |
5 | */ |
6 | ||
7 | #include <babeltrace2/babeltrace.h> | |
8 | ||
9 | #include <inttypes.h> | |
10 | #include <stdlib.h> | |
11 | #include <string.h> | |
12 | ||
13 | #include "common/assert.h" | |
498e7994 | 14 | #include "common/common.h" |
1aca5200 FD |
15 | #include "common/macros.h" |
16 | #include "common/uuid.h" | |
17 | ||
18 | #include "muxing.h" | |
19 | ||
20 | struct message_to_compare { | |
21 | const bt_message *msg; | |
22 | const bt_trace *trace; | |
23 | const bt_stream *stream; | |
24 | }; | |
25 | ||
26 | struct messages_to_compare { | |
27 | struct message_to_compare left; | |
28 | struct message_to_compare right; | |
29 | }; | |
30 | ||
31 | static | |
32 | int message_type_weight(const bt_message_type msg_type) | |
33 | { | |
34 | int weight; | |
35 | ||
36 | switch (msg_type) { | |
37 | case BT_MESSAGE_TYPE_STREAM_BEGINNING: | |
38 | weight = 7; | |
39 | break; | |
40 | case BT_MESSAGE_TYPE_PACKET_BEGINNING: | |
41 | weight = 6; | |
42 | break; | |
43 | case BT_MESSAGE_TYPE_EVENT: | |
44 | weight = 5; | |
45 | break; | |
46 | case BT_MESSAGE_TYPE_DISCARDED_EVENTS: | |
47 | weight = 4; | |
48 | break; | |
49 | case BT_MESSAGE_TYPE_PACKET_END: | |
50 | weight = 3; | |
51 | break; | |
52 | case BT_MESSAGE_TYPE_MESSAGE_ITERATOR_INACTIVITY: | |
53 | weight = 2; | |
54 | break; | |
55 | case BT_MESSAGE_TYPE_DISCARDED_PACKETS: | |
56 | weight = 1; | |
57 | break; | |
58 | case BT_MESSAGE_TYPE_STREAM_END: | |
59 | weight = 0; | |
60 | break; | |
61 | default: | |
498e7994 | 62 | bt_common_abort(); |
1aca5200 FD |
63 | } |
64 | ||
65 | return weight; | |
66 | } | |
67 | ||
68 | /* | |
e7401568 | 69 | * Compare 2 messages to order them in a deterministic way based on their |
1aca5200 | 70 | * types. |
e7401568 SM |
71 | * Returns -1 is left message must go first |
72 | * Returns 1 is right message must go first | |
1aca5200 FD |
73 | */ |
74 | static | |
75 | int compare_messages_by_type(struct messages_to_compare *msgs) | |
76 | { | |
77 | bt_message_type left_msg_type = bt_message_get_type(msgs->left.msg); | |
78 | bt_message_type right_msg_type = bt_message_get_type(msgs->right.msg); | |
79 | ||
80 | return message_type_weight(right_msg_type) - | |
81 | message_type_weight(left_msg_type); | |
82 | } | |
83 | ||
84 | static | |
85 | int compare_events(const bt_event *left_event, const bt_event *right_event) | |
86 | { | |
87 | int ret = 0; | |
88 | const bt_event_class *left_event_class, *right_event_class; | |
89 | uint64_t left_event_class_id, right_event_class_id; | |
90 | const char *left_event_class_name, *right_event_class_name, | |
91 | *left_event_class_emf_uri, *right_event_class_emf_uri; | |
92 | bt_event_class_log_level left_event_class_log_level, right_event_class_log_level; | |
93 | bt_property_availability left_log_level_avail, right_log_level_avail; | |
94 | ||
95 | left_event_class = bt_event_borrow_class_const(left_event); | |
96 | right_event_class = bt_event_borrow_class_const(right_event); | |
97 | ||
98 | left_event_class_id = bt_event_class_get_id(left_event_class); | |
99 | right_event_class_id = bt_event_class_get_id(right_event_class); | |
100 | ||
101 | if (left_event_class_id > right_event_class_id) { | |
102 | ret = 1; | |
103 | goto end; | |
104 | } else if (left_event_class_id < right_event_class_id) { | |
105 | ret = -1; | |
106 | goto end; | |
107 | } | |
108 | ||
109 | left_event_class_name = bt_event_class_get_name(left_event_class); | |
110 | right_event_class_name = bt_event_class_get_name(right_event_class); | |
111 | if (left_event_class_name && right_event_class_name) { | |
112 | ret = strcmp(left_event_class_name, right_event_class_name); | |
113 | if (ret != 0) { | |
114 | goto end; | |
115 | } | |
116 | } else if (!left_event_class_name && right_event_class_name) { | |
117 | ret = -1; | |
118 | goto end; | |
119 | } else if (left_event_class_name && !right_event_class_name) { | |
120 | ret = 1; | |
121 | goto end; | |
122 | } | |
123 | ||
124 | left_log_level_avail = bt_event_class_get_log_level(left_event_class, | |
125 | &left_event_class_log_level); | |
126 | right_log_level_avail = bt_event_class_get_log_level(right_event_class, | |
127 | &right_event_class_log_level); | |
128 | ||
129 | if (left_log_level_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE && | |
130 | right_log_level_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) { | |
131 | ret = left_event_class_log_level - right_event_class_log_level; | |
132 | if (ret) { | |
133 | goto end; | |
134 | } | |
135 | } else if (left_log_level_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE && | |
136 | right_log_level_avail == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE) { | |
137 | ret = -1; | |
138 | goto end; | |
139 | } else if (left_log_level_avail == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE && | |
140 | right_log_level_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) { | |
141 | ret = 1; | |
142 | goto end; | |
143 | } | |
144 | ||
145 | left_event_class_emf_uri = bt_event_class_get_emf_uri(left_event_class); | |
146 | right_event_class_emf_uri = bt_event_class_get_emf_uri(right_event_class); | |
147 | if (left_event_class_emf_uri && right_event_class_emf_uri) { | |
148 | ret = strcmp(left_event_class_emf_uri, right_event_class_emf_uri); | |
149 | if (ret != 0) { | |
150 | goto end; | |
151 | } | |
152 | } else if (!left_event_class_emf_uri && right_event_class_emf_uri) { | |
153 | ret = -1; | |
154 | goto end; | |
155 | } else if (left_event_class_emf_uri && !right_event_class_emf_uri) { | |
156 | ret = 1; | |
157 | goto end; | |
158 | } | |
159 | ||
160 | end: | |
161 | return ret; | |
162 | } | |
163 | ||
7e3c441e SM |
164 | |
165 | static | |
166 | int compare_clock_classes(const bt_clock_class *left_cc, | |
167 | const bt_clock_class *right_cc) | |
168 | { | |
169 | int ret; | |
170 | const char *left_clock_class_name, *right_clock_class_name; | |
171 | bt_uuid left_clock_class_uuid, right_clock_class_uuid; | |
172 | uint64_t left_freq, right_freq, left_prec, right_prec; | |
173 | ||
174 | left_clock_class_uuid = bt_clock_class_get_uuid(left_cc); | |
175 | right_clock_class_uuid = bt_clock_class_get_uuid(right_cc); | |
176 | ||
177 | if (left_clock_class_uuid && !right_clock_class_uuid) { | |
178 | ret = -1; | |
179 | goto end; | |
180 | } else if (!left_clock_class_uuid && right_clock_class_uuid) { | |
181 | ret = 1; | |
182 | goto end; | |
183 | } else if (left_clock_class_uuid && right_clock_class_uuid) { | |
184 | ret = bt_uuid_compare(left_clock_class_uuid, | |
185 | right_clock_class_uuid); | |
186 | if (ret != 0) { | |
187 | goto end; | |
188 | } | |
189 | } | |
190 | ||
191 | ||
192 | left_clock_class_name = bt_clock_class_get_name(left_cc); | |
193 | right_clock_class_name = bt_clock_class_get_name(right_cc); | |
194 | ||
195 | if (left_clock_class_name && !right_clock_class_name) { | |
196 | ret = -1; | |
197 | goto end; | |
198 | } else if (!left_clock_class_name && right_clock_class_name) { | |
199 | ret = 1; | |
200 | goto end; | |
201 | } else if (left_clock_class_name && right_clock_class_name) { | |
202 | ret = strcmp(left_clock_class_name, right_clock_class_name); | |
203 | if (ret != 0) { | |
204 | goto end; | |
205 | } | |
206 | } | |
207 | ||
208 | left_freq = bt_clock_class_get_frequency(left_cc); | |
209 | right_freq = bt_clock_class_get_frequency(right_cc); | |
210 | ||
211 | ret = right_freq - left_freq; | |
212 | if (ret != 0) { | |
213 | goto end; | |
214 | } | |
215 | ||
216 | left_prec = bt_clock_class_get_precision(left_cc); | |
217 | right_prec = bt_clock_class_get_precision(right_cc); | |
218 | ||
219 | ret = right_prec - left_prec; | |
220 | if (ret != 0) { | |
221 | goto end; | |
222 | } | |
223 | ||
224 | end: | |
225 | return ret; | |
226 | } | |
227 | ||
1aca5200 FD |
228 | static |
229 | int compare_streams(const bt_stream *left_stream, const bt_stream *right_stream) | |
230 | { | |
231 | int ret = 0; | |
232 | const char *left_stream_name, *right_stream_name, | |
233 | *left_stream_class_name, *right_stream_class_name; | |
234 | const bt_stream_class *left_stream_class, *right_stream_class; | |
235 | ||
236 | /* | |
237 | * No need to compare stream id as it was checked earlier and if we are | |
238 | * here it means they are identical or both absent. | |
239 | */ | |
09a4c519 | 240 | BT_ASSERT_DBG(bt_stream_get_id(left_stream) == |
1aca5200 FD |
241 | bt_stream_get_id(right_stream)); |
242 | ||
243 | /* Compare stream name. */ | |
244 | left_stream_name = bt_stream_get_name(left_stream); | |
245 | right_stream_name = bt_stream_get_name(right_stream); | |
246 | ||
247 | if (left_stream_name && right_stream_name) { | |
248 | ret = strcmp(left_stream_name, right_stream_name); | |
249 | if (ret != 0) { | |
250 | goto end; | |
251 | } | |
252 | } else if (!left_stream_name && right_stream_name) { | |
253 | ret = -1; | |
254 | goto end; | |
255 | } else if (left_stream_name && !right_stream_name) { | |
256 | ret = 1; | |
257 | goto end; | |
258 | } | |
259 | ||
260 | left_stream_class = bt_stream_borrow_class_const(left_stream); | |
261 | right_stream_class = bt_stream_borrow_class_const(right_stream); | |
262 | ||
263 | /* | |
264 | * No need to compare stream class id as it was checked earlier and if | |
265 | * we are here it means they are identical. | |
266 | */ | |
09a4c519 | 267 | BT_ASSERT_DBG(bt_stream_class_get_id(left_stream_class) == |
1aca5200 FD |
268 | bt_stream_class_get_id(right_stream_class)); |
269 | ||
270 | /* Compare stream class name. */ | |
271 | left_stream_class_name = bt_stream_class_get_name(left_stream_class); | |
272 | right_stream_class_name = bt_stream_class_get_name(right_stream_class); | |
273 | ||
274 | if (left_stream_class_name && right_stream_class_name) { | |
275 | ret = strcmp(left_stream_class_name, right_stream_class_name); | |
276 | if (ret != 0) { | |
277 | goto end; | |
278 | } | |
279 | } else if (!left_stream_class_name && right_stream_class_name) { | |
280 | ret = -1; | |
281 | goto end; | |
282 | } else if (left_stream_class_name && !right_stream_class_name) { | |
283 | ret = 1; | |
284 | goto end; | |
285 | } | |
286 | ||
287 | /* Compare stream class automatic event class id assignment. */ | |
288 | if (bt_stream_class_assigns_automatic_event_class_id(left_stream_class) && | |
289 | !bt_stream_class_assigns_automatic_event_class_id(right_stream_class)) { | |
290 | ret = 1; | |
291 | goto end; | |
292 | } else if (!bt_stream_class_assigns_automatic_event_class_id(left_stream_class) && | |
293 | bt_stream_class_assigns_automatic_event_class_id(right_stream_class)) { | |
294 | ret = -1; | |
295 | goto end; | |
296 | } | |
297 | ||
298 | /* Compare stream class automatic stream id assignment. */ | |
299 | if (bt_stream_class_assigns_automatic_stream_id(left_stream_class) && | |
300 | !bt_stream_class_assigns_automatic_stream_id(right_stream_class)) { | |
301 | ret = 1; | |
302 | goto end; | |
303 | } else if (!bt_stream_class_assigns_automatic_stream_id(left_stream_class) && | |
304 | bt_stream_class_assigns_automatic_stream_id(right_stream_class)) { | |
305 | ret = -1; | |
306 | goto end; | |
307 | } | |
308 | ||
309 | /* Compare stream class support of discarded events. */ | |
310 | if (bt_stream_class_supports_discarded_events(left_stream_class) && | |
311 | !bt_stream_class_supports_discarded_events(right_stream_class)) { | |
312 | ret = 1; | |
313 | goto end; | |
314 | } else if (!bt_stream_class_supports_discarded_events(left_stream_class) && | |
315 | bt_stream_class_supports_discarded_events(right_stream_class)) { | |
316 | ret = -1; | |
317 | goto end; | |
318 | } | |
319 | ||
320 | /* Compare stream class discarded events default clock snapshot. */ | |
321 | if (bt_stream_class_discarded_events_have_default_clock_snapshots(left_stream_class) && | |
322 | !bt_stream_class_discarded_events_have_default_clock_snapshots(right_stream_class)) { | |
323 | ret = 1; | |
324 | goto end; | |
325 | } else if (!bt_stream_class_discarded_events_have_default_clock_snapshots(left_stream_class) && | |
326 | bt_stream_class_discarded_events_have_default_clock_snapshots(right_stream_class)) { | |
327 | ret = -1; | |
328 | goto end; | |
329 | } | |
330 | ||
331 | /* Compare stream class support of packets. */ | |
332 | if (bt_stream_class_supports_packets(left_stream_class) && | |
333 | !bt_stream_class_supports_packets(right_stream_class)) { | |
334 | ret = 1; | |
335 | goto end; | |
336 | } else if (!bt_stream_class_supports_packets(left_stream_class) && | |
337 | bt_stream_class_supports_packets(right_stream_class)) { | |
338 | ret = -1; | |
339 | goto end; | |
340 | } | |
341 | ||
342 | if (!bt_stream_class_supports_packets(left_stream_class)) { | |
343 | /* Skip all packet related checks. */ | |
344 | goto end; | |
345 | } | |
346 | ||
347 | /* | |
348 | * Compare stream class presence of discarded packets beginning default | |
349 | * clock snapshot. | |
350 | */ | |
351 | if (bt_stream_class_packets_have_beginning_default_clock_snapshot(left_stream_class) && | |
352 | !bt_stream_class_packets_have_beginning_default_clock_snapshot(right_stream_class)) { | |
353 | ret = 1; | |
354 | goto end; | |
355 | } else if (!bt_stream_class_packets_have_beginning_default_clock_snapshot(left_stream_class) && | |
356 | bt_stream_class_packets_have_beginning_default_clock_snapshot(right_stream_class)) { | |
357 | ret = -1; | |
358 | goto end; | |
359 | } | |
360 | ||
361 | /* | |
362 | * Compare stream class presence of discarded packets end default clock | |
363 | * snapshot. | |
364 | */ | |
365 | if (bt_stream_class_packets_have_end_default_clock_snapshot(left_stream_class) && | |
366 | !bt_stream_class_packets_have_end_default_clock_snapshot(right_stream_class)) { | |
367 | ret = 1; | |
368 | goto end; | |
369 | } else if (!bt_stream_class_packets_have_end_default_clock_snapshot(left_stream_class) && | |
370 | bt_stream_class_packets_have_end_default_clock_snapshot(right_stream_class)) { | |
371 | ret = -1; | |
372 | goto end; | |
373 | } | |
374 | ||
375 | /* Compare stream class support of discarded packets. */ | |
376 | if (bt_stream_class_supports_discarded_packets(left_stream_class) && | |
377 | !bt_stream_class_supports_discarded_packets(right_stream_class)) { | |
378 | ret = 1; | |
379 | goto end; | |
380 | } else if (!bt_stream_class_supports_discarded_packets(left_stream_class) && | |
381 | bt_stream_class_supports_discarded_packets(right_stream_class)) { | |
382 | ret = -1; | |
383 | goto end; | |
384 | } | |
385 | ||
386 | /* Compare stream class discarded packets default clock snapshot. */ | |
387 | if (bt_stream_class_discarded_packets_have_default_clock_snapshots(left_stream_class) && | |
388 | !bt_stream_class_discarded_packets_have_default_clock_snapshots(right_stream_class)) { | |
389 | ret = 1; | |
390 | goto end; | |
391 | } else if (!bt_stream_class_discarded_packets_have_default_clock_snapshots(left_stream_class) && | |
392 | bt_stream_class_discarded_packets_have_default_clock_snapshots(right_stream_class)) { | |
393 | ret = -1; | |
394 | goto end; | |
395 | } | |
396 | ||
397 | end: | |
398 | return ret; | |
399 | } | |
400 | ||
401 | static | |
7e3c441e | 402 | int compare_clock_snapshots(const bt_clock_snapshot *left_cs, |
1aca5200 FD |
403 | const bt_clock_snapshot *right_cs) |
404 | { | |
7e3c441e SM |
405 | uint64_t left_cs_value = bt_clock_snapshot_get_value(left_cs); |
406 | uint64_t right_cs_value = bt_clock_snapshot_get_value(right_cs); | |
1aca5200 | 407 | |
7e3c441e | 408 | return left_cs_value - right_cs_value; |
1aca5200 FD |
409 | } |
410 | ||
411 | static | |
412 | const bt_stream *borrow_stream(const bt_message *msg) | |
413 | { | |
414 | bt_message_type msg_type = bt_message_get_type(msg); | |
415 | const bt_stream *stream = NULL; | |
416 | const bt_packet *packet = NULL; | |
417 | const bt_event *event = NULL; | |
418 | ||
419 | switch (msg_type) { | |
420 | case BT_MESSAGE_TYPE_STREAM_BEGINNING: | |
421 | stream = bt_message_stream_beginning_borrow_stream_const(msg); | |
422 | break; | |
423 | case BT_MESSAGE_TYPE_STREAM_END: | |
424 | stream = bt_message_stream_end_borrow_stream_const(msg); | |
425 | break; | |
426 | case BT_MESSAGE_TYPE_PACKET_BEGINNING: | |
427 | packet = bt_message_packet_beginning_borrow_packet_const(msg); | |
428 | stream = bt_packet_borrow_stream_const(packet); | |
429 | break; | |
430 | case BT_MESSAGE_TYPE_PACKET_END: | |
431 | packet = bt_message_packet_end_borrow_packet_const(msg); | |
432 | stream = bt_packet_borrow_stream_const(packet); | |
433 | break; | |
434 | case BT_MESSAGE_TYPE_EVENT: | |
435 | event = bt_message_event_borrow_event_const(msg); | |
436 | stream = bt_event_borrow_stream_const(event); | |
437 | break; | |
438 | case BT_MESSAGE_TYPE_DISCARDED_EVENTS: | |
439 | stream = bt_message_discarded_events_borrow_stream_const(msg); | |
440 | break; | |
441 | case BT_MESSAGE_TYPE_DISCARDED_PACKETS: | |
442 | stream = bt_message_discarded_packets_borrow_stream_const(msg); | |
443 | break; | |
444 | case BT_MESSAGE_TYPE_MESSAGE_ITERATOR_INACTIVITY: | |
445 | goto end; | |
446 | default: | |
498e7994 | 447 | bt_common_abort(); |
1aca5200 FD |
448 | } |
449 | ||
450 | end: | |
451 | return stream; | |
452 | } | |
453 | ||
454 | static | |
455 | const bt_trace *borrow_trace(const bt_message *msg) | |
456 | { | |
457 | const bt_trace *trace = NULL; | |
458 | const bt_stream *stream = NULL; | |
459 | ||
460 | stream = borrow_stream(msg); | |
461 | if (stream) { | |
462 | trace = bt_stream_borrow_trace_const(stream); | |
463 | } | |
464 | ||
465 | return trace; | |
466 | } | |
467 | ||
468 | static | |
469 | int compare_messages_by_trace_name(struct messages_to_compare *msgs) | |
470 | { | |
471 | int ret = 0; | |
472 | const char *left_trace_name = NULL, *right_trace_name = NULL; | |
473 | ||
474 | if (msgs->left.trace && !msgs->right.trace) { | |
475 | ret = -1; | |
476 | goto end; | |
477 | } | |
478 | ||
479 | if (!msgs->left.trace && msgs->right.trace) { | |
480 | ret = 1; | |
481 | goto end; | |
482 | } | |
483 | ||
484 | if (!msgs->left.trace && !msgs->right.trace) { | |
485 | ret = 0; | |
486 | goto end; | |
487 | } | |
488 | ||
489 | left_trace_name = bt_trace_get_name(msgs->left.trace); | |
490 | right_trace_name = bt_trace_get_name(msgs->right.trace); | |
491 | ||
492 | if (left_trace_name && !right_trace_name) { | |
493 | ret = -1; | |
494 | goto end; | |
495 | } | |
496 | ||
497 | if (!left_trace_name && right_trace_name) { | |
498 | ret = 1; | |
499 | goto end; | |
500 | } | |
501 | ||
502 | if (!left_trace_name && !right_trace_name) { | |
503 | ret = 0; | |
504 | goto end; | |
505 | } | |
506 | ||
507 | ret = strcmp(left_trace_name, right_trace_name); | |
508 | end: | |
509 | return ret; | |
510 | } | |
511 | ||
512 | static | |
513 | int compare_messages_by_trace_uuid(struct messages_to_compare *msgs) | |
514 | { | |
515 | int ret = 0; | |
516 | bt_uuid left_trace_uuid = NULL, right_trace_uuid = NULL; | |
517 | ||
518 | if (msgs->left.trace && !msgs->right.trace) { | |
519 | ret = -1; | |
520 | goto end; | |
521 | } | |
522 | ||
523 | if (!msgs->left.trace && msgs->right.trace) { | |
524 | ret = 1; | |
525 | goto end; | |
526 | } | |
527 | ||
528 | if (!msgs->left.trace && !msgs->right.trace) { | |
529 | ret = 0; | |
530 | goto end; | |
531 | } | |
532 | ||
533 | left_trace_uuid = bt_trace_get_uuid(msgs->left.trace); | |
534 | right_trace_uuid = bt_trace_get_uuid(msgs->right.trace); | |
535 | ||
536 | if (left_trace_uuid && !right_trace_uuid) { | |
537 | ret = -1; | |
538 | goto end; | |
539 | } | |
540 | ||
541 | if (!left_trace_uuid && right_trace_uuid) { | |
542 | ret = 1; | |
543 | goto end; | |
544 | } | |
545 | ||
546 | if (!left_trace_uuid && !right_trace_uuid) { | |
547 | ret = 0; | |
548 | goto end; | |
549 | } | |
550 | ||
551 | ret = bt_uuid_compare(left_trace_uuid, right_trace_uuid); | |
552 | end: | |
553 | return ret; | |
554 | } | |
555 | ||
556 | static | |
557 | int compare_messages_by_stream_class_id(struct messages_to_compare *msgs) | |
558 | { | |
559 | int ret = 0; | |
560 | uint64_t left_stream_class_id = 0, right_stream_class_id = 0; | |
561 | ||
562 | if (msgs->left.stream && !msgs->right.stream) { | |
563 | ret = -1; | |
564 | goto end; | |
565 | } | |
566 | ||
567 | if (!msgs->left.stream && msgs->right.stream) { | |
568 | ret = 1; | |
569 | goto end; | |
570 | } | |
571 | ||
572 | if (!msgs->left.stream && !msgs->right.stream) { | |
573 | ret = 0; | |
574 | goto end; | |
575 | } | |
576 | ||
577 | left_stream_class_id = bt_stream_class_get_id( | |
578 | bt_stream_borrow_class_const(msgs->left.stream)); | |
579 | ||
580 | right_stream_class_id = bt_stream_class_get_id( | |
581 | bt_stream_borrow_class_const(msgs->right.stream)); | |
582 | ||
583 | if (left_stream_class_id == right_stream_class_id) { | |
584 | ret = 0; | |
585 | goto end; | |
586 | } | |
587 | ||
588 | ret = (left_stream_class_id < right_stream_class_id) ? -1 : 1; | |
589 | ||
590 | end: | |
591 | return ret; | |
592 | } | |
593 | ||
594 | static | |
595 | int compare_messages_by_stream_id(struct messages_to_compare *msgs) | |
596 | { | |
597 | int ret = 0; | |
598 | uint64_t left_stream_id = 0, right_stream_id = 0; | |
599 | ||
600 | if (msgs->left.stream && !msgs->right.stream) { | |
601 | ret = -1; | |
602 | goto end; | |
603 | } | |
604 | ||
605 | if (!msgs->left.stream && msgs->right.stream) { | |
606 | ret = 1; | |
607 | goto end; | |
608 | } | |
609 | ||
610 | if (!msgs->left.stream && !msgs->right.stream) { | |
611 | ret = 0; | |
612 | goto end; | |
613 | } | |
614 | ||
615 | left_stream_id = bt_stream_get_id(msgs->left.stream); | |
616 | right_stream_id = bt_stream_get_id(msgs->right.stream); | |
617 | ||
618 | if (left_stream_id == right_stream_id) { | |
619 | ret = 0; | |
620 | goto end; | |
621 | } | |
622 | ||
623 | ret = (left_stream_id < right_stream_id) ? -1 : 1; | |
624 | ||
625 | end: | |
626 | return ret; | |
627 | } | |
628 | ||
629 | static | |
630 | int compare_messages_same_type(struct messages_to_compare *msgs) | |
631 | { | |
632 | int ret = 0; | |
633 | ||
634 | /* | |
635 | * Both messages are of the same type, we must compare characterics of | |
636 | * the messages such as the attributes of the event in a event message. | |
637 | */ | |
09a4c519 | 638 | BT_ASSERT_DBG(bt_message_get_type(msgs->left.msg) == |
1aca5200 FD |
639 | bt_message_get_type(msgs->right.msg)); |
640 | ||
641 | switch (bt_message_get_type(msgs->left.msg)) { | |
642 | case BT_MESSAGE_TYPE_STREAM_BEGINNING: | |
643 | /* Fall-through */ | |
644 | case BT_MESSAGE_TYPE_STREAM_END: | |
645 | /* Fall-through */ | |
646 | case BT_MESSAGE_TYPE_PACKET_BEGINNING: | |
647 | /* Fall-through */ | |
648 | case BT_MESSAGE_TYPE_PACKET_END: | |
649 | ret = compare_streams(msgs->left.stream, msgs->right.stream); | |
650 | if (ret) { | |
651 | goto end; | |
652 | } | |
653 | ||
654 | break; | |
655 | case BT_MESSAGE_TYPE_EVENT: | |
656 | { | |
657 | const bt_event *left_event, *right_event; | |
658 | left_event = bt_message_event_borrow_event_const(msgs->left.msg); | |
659 | right_event = bt_message_event_borrow_event_const(msgs->right.msg); | |
660 | ||
661 | ret = compare_events(left_event, right_event); | |
662 | if (ret) { | |
663 | goto end; | |
664 | } | |
665 | ||
666 | ret = compare_streams(msgs->left.stream, msgs->right.stream); | |
667 | if (ret) { | |
668 | goto end; | |
669 | } | |
670 | break; | |
671 | } | |
672 | case BT_MESSAGE_TYPE_DISCARDED_EVENTS: | |
673 | { | |
674 | const bt_stream_class *left_stream_class; | |
675 | bt_property_availability left_event_count_avail, | |
676 | right_event_count_avail; | |
677 | uint64_t left_event_count, right_event_count; | |
678 | ||
679 | /* | |
680 | * Compare streams first to check if there is a | |
681 | * mismatch about discarded event related configuration | |
682 | * in the stream class. | |
683 | */ | |
684 | ret = compare_streams(msgs->left.stream, msgs->right.stream); | |
685 | if (ret) { | |
686 | goto end; | |
687 | } | |
688 | ||
689 | left_stream_class = bt_stream_borrow_class_const(msgs->left.stream); | |
690 | if (bt_stream_class_discarded_events_have_default_clock_snapshots( | |
691 | left_stream_class)) { | |
692 | const bt_clock_snapshot *left_beg_cs = | |
693 | bt_message_discarded_events_borrow_beginning_default_clock_snapshot_const(msgs->left.msg); | |
694 | const bt_clock_snapshot *right_beg_cs = | |
695 | bt_message_discarded_events_borrow_beginning_default_clock_snapshot_const(msgs->right.msg); | |
696 | const bt_clock_snapshot *left_end_cs = | |
697 | bt_message_discarded_events_borrow_end_default_clock_snapshot_const(msgs->left.msg); | |
698 | const bt_clock_snapshot *right_end_cs = | |
699 | bt_message_discarded_events_borrow_end_default_clock_snapshot_const(msgs->right.msg); | |
700 | ||
7e3c441e | 701 | ret = compare_clock_snapshots(left_beg_cs, right_beg_cs); |
1aca5200 FD |
702 | if (ret) { |
703 | goto end; | |
704 | } | |
705 | ||
7e3c441e | 706 | ret = compare_clock_snapshots(left_end_cs, right_end_cs); |
1aca5200 FD |
707 | if (ret) { |
708 | goto end; | |
709 | } | |
7e3c441e SM |
710 | |
711 | ret = compare_clock_classes( | |
712 | bt_clock_snapshot_borrow_clock_class_const(left_beg_cs), | |
713 | bt_clock_snapshot_borrow_clock_class_const(right_beg_cs)); | |
714 | if (ret != 0) { | |
715 | goto end; | |
716 | } | |
1aca5200 FD |
717 | } |
718 | ||
719 | left_event_count_avail = | |
720 | bt_message_discarded_events_get_count( | |
721 | msgs->left.msg, &left_event_count); | |
722 | right_event_count_avail = | |
723 | bt_message_discarded_events_get_count( | |
724 | msgs->right.msg, &right_event_count); | |
725 | if (left_event_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE && | |
726 | right_event_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) { | |
727 | ret = left_event_count - right_event_count; | |
728 | if (ret != 0) { | |
729 | goto end; | |
730 | } | |
731 | } else if (left_event_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE && | |
732 | right_event_count_avail == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE) { | |
733 | ret = -1; | |
734 | goto end; | |
735 | } else if (left_event_count_avail == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE && | |
736 | right_event_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) { | |
737 | ret = 1; | |
738 | goto end; | |
739 | } | |
740 | ||
741 | break; | |
742 | } | |
743 | case BT_MESSAGE_TYPE_DISCARDED_PACKETS: | |
744 | { | |
745 | const bt_stream_class *left_stream_class; | |
746 | bt_property_availability left_packet_count_avail, | |
747 | right_packet_count_avail; | |
748 | uint64_t left_packet_count, right_packet_count; | |
749 | ||
750 | /* | |
751 | * Compare streams first to check if there is a | |
752 | * mismatch about discarded packets related | |
753 | * configuration in the stream class. | |
754 | */ | |
755 | ret = compare_streams(msgs->left.stream, msgs->right.stream); | |
756 | if (ret) { | |
757 | goto end; | |
758 | } | |
759 | ||
760 | left_stream_class = bt_stream_borrow_class_const(msgs->left.stream); | |
761 | ||
762 | if (bt_stream_class_discarded_packets_have_default_clock_snapshots( | |
763 | left_stream_class)) { | |
764 | const bt_clock_snapshot *left_beg_cs = | |
765 | bt_message_discarded_packets_borrow_beginning_default_clock_snapshot_const(msgs->left.msg); | |
766 | const bt_clock_snapshot *right_beg_cs = | |
767 | bt_message_discarded_packets_borrow_beginning_default_clock_snapshot_const(msgs->right.msg); | |
768 | const bt_clock_snapshot *left_end_cs = | |
769 | bt_message_discarded_packets_borrow_end_default_clock_snapshot_const(msgs->left.msg); | |
770 | const bt_clock_snapshot *right_end_cs = | |
771 | bt_message_discarded_packets_borrow_end_default_clock_snapshot_const(msgs->right.msg); | |
772 | ||
7e3c441e | 773 | ret = compare_clock_snapshots(left_beg_cs, right_beg_cs); |
1aca5200 FD |
774 | if (ret) { |
775 | goto end; | |
776 | } | |
777 | ||
7e3c441e | 778 | ret = compare_clock_snapshots(left_end_cs, right_end_cs); |
1aca5200 FD |
779 | if (ret) { |
780 | goto end; | |
781 | } | |
7e3c441e SM |
782 | |
783 | ret = compare_clock_classes( | |
784 | bt_clock_snapshot_borrow_clock_class_const(left_beg_cs), | |
785 | bt_clock_snapshot_borrow_clock_class_const(right_beg_cs)); | |
786 | if (ret != 0) { | |
787 | goto end; | |
788 | } | |
1aca5200 FD |
789 | } |
790 | ||
791 | left_packet_count_avail = bt_message_discarded_packets_get_count( | |
792 | msgs->left.msg, &left_packet_count); | |
793 | right_packet_count_avail = bt_message_discarded_packets_get_count( | |
794 | msgs->right.msg, &right_packet_count); | |
795 | if (left_packet_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE && | |
796 | right_packet_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) { | |
797 | ret = left_packet_count - right_packet_count; | |
798 | if (ret != 0) { | |
799 | goto end; | |
800 | } | |
801 | } else if (left_packet_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE && | |
802 | right_packet_count_avail == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE) { | |
803 | ret = -1; | |
804 | goto end; | |
805 | } else if (left_packet_count_avail == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE && | |
806 | right_packet_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) { | |
807 | ret = 1; | |
808 | goto end; | |
809 | } | |
810 | ||
811 | break; | |
812 | } | |
813 | case BT_MESSAGE_TYPE_MESSAGE_ITERATOR_INACTIVITY: | |
814 | { | |
815 | const bt_clock_snapshot *left_cs = | |
60d02328 | 816 | bt_message_message_iterator_inactivity_borrow_clock_snapshot_const(msgs->left.msg); |
1aca5200 | 817 | const bt_clock_snapshot *right_cs = |
60d02328 | 818 | bt_message_message_iterator_inactivity_borrow_clock_snapshot_const(msgs->right.msg); |
1aca5200 | 819 | |
7e3c441e SM |
820 | ret = compare_clock_snapshots(left_cs, right_cs); |
821 | if (ret != 0) { | |
822 | goto end; | |
823 | } | |
824 | ||
825 | ret = compare_clock_classes( | |
826 | bt_clock_snapshot_borrow_clock_class_const(left_cs), | |
827 | bt_clock_snapshot_borrow_clock_class_const(right_cs)); | |
1aca5200 FD |
828 | if (ret != 0) { |
829 | goto end; | |
830 | } | |
831 | ||
832 | break; | |
833 | } | |
834 | default: | |
498e7994 | 835 | bt_common_abort(); |
1aca5200 FD |
836 | } |
837 | ||
838 | end: | |
839 | return ret; | |
840 | } | |
841 | ||
1aca5200 FD |
842 | int common_muxing_compare_messages(const bt_message *left_msg, |
843 | const bt_message *right_msg) | |
844 | { | |
845 | int ret = 0; | |
846 | struct messages_to_compare msgs; | |
847 | ||
09a4c519 | 848 | BT_ASSERT_DBG(left_msg != right_msg); |
1aca5200 FD |
849 | |
850 | msgs.left.msg = left_msg; | |
851 | msgs.left.trace = borrow_trace(left_msg); | |
852 | msgs.left.stream = borrow_stream(left_msg); | |
853 | ||
854 | msgs.right.msg = right_msg; | |
855 | msgs.right.trace = borrow_trace(right_msg); | |
856 | msgs.right.stream = borrow_stream(right_msg); | |
857 | ||
ccad54e5 JR |
858 | /* Same timestamp: compare trace UUIDs. */ |
859 | ret = compare_messages_by_trace_uuid(&msgs); | |
1aca5200 FD |
860 | if (ret) { |
861 | goto end; | |
862 | } | |
863 | ||
ccad54e5 JR |
864 | /* Same timestamp and trace UUID: compare trace names. */ |
865 | ret = compare_messages_by_trace_name(&msgs); | |
1aca5200 FD |
866 | if (ret) { |
867 | goto end; | |
868 | } | |
869 | ||
870 | /* | |
871 | * Same timestamp, trace name, and trace UUID: compare stream class | |
872 | * IDs. | |
873 | */ | |
874 | ret = compare_messages_by_stream_class_id(&msgs); | |
875 | if (ret) { | |
876 | goto end; | |
877 | } | |
878 | ||
879 | /* | |
880 | * Same timestamp, trace name, trace UUID, and stream class ID: compare | |
881 | * stream IDs. | |
882 | */ | |
883 | ret = compare_messages_by_stream_id(&msgs); | |
884 | if (ret) { | |
885 | goto end; | |
886 | } | |
887 | ||
888 | if (bt_message_get_type(msgs.left.msg) != | |
889 | bt_message_get_type(msgs.right.msg)) { | |
890 | /* | |
891 | * The messages are of different type, we order (arbitrarily) | |
892 | * in the following way: | |
893 | * SB < PB < EV < DE < MI < PE < DP < SE | |
894 | */ | |
895 | ret = compare_messages_by_type(&msgs); | |
896 | if (ret) { | |
897 | goto end; | |
898 | } | |
899 | } else { | |
900 | /* The messages are of the same type. */ | |
901 | ret = compare_messages_same_type(&msgs); | |
902 | if (ret) { | |
903 | goto end; | |
904 | } | |
905 | } | |
906 | ||
907 | end: | |
908 | return ret; | |
909 | } |