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; | |
94bec82e | 235 | const bt_clock_class *left_cc, *right_cc; |
1aca5200 FD |
236 | |
237 | /* | |
238 | * No need to compare stream id as it was checked earlier and if we are | |
239 | * here it means they are identical or both absent. | |
240 | */ | |
09a4c519 | 241 | BT_ASSERT_DBG(bt_stream_get_id(left_stream) == |
1aca5200 FD |
242 | bt_stream_get_id(right_stream)); |
243 | ||
244 | /* Compare stream name. */ | |
245 | left_stream_name = bt_stream_get_name(left_stream); | |
246 | right_stream_name = bt_stream_get_name(right_stream); | |
247 | ||
248 | if (left_stream_name && right_stream_name) { | |
249 | ret = strcmp(left_stream_name, right_stream_name); | |
250 | if (ret != 0) { | |
251 | goto end; | |
252 | } | |
253 | } else if (!left_stream_name && right_stream_name) { | |
254 | ret = -1; | |
255 | goto end; | |
256 | } else if (left_stream_name && !right_stream_name) { | |
257 | ret = 1; | |
258 | goto end; | |
259 | } | |
260 | ||
261 | left_stream_class = bt_stream_borrow_class_const(left_stream); | |
262 | right_stream_class = bt_stream_borrow_class_const(right_stream); | |
263 | ||
264 | /* | |
265 | * No need to compare stream class id as it was checked earlier and if | |
266 | * we are here it means they are identical. | |
267 | */ | |
09a4c519 | 268 | BT_ASSERT_DBG(bt_stream_class_get_id(left_stream_class) == |
1aca5200 FD |
269 | bt_stream_class_get_id(right_stream_class)); |
270 | ||
271 | /* Compare stream class name. */ | |
272 | left_stream_class_name = bt_stream_class_get_name(left_stream_class); | |
273 | right_stream_class_name = bt_stream_class_get_name(right_stream_class); | |
274 | ||
275 | if (left_stream_class_name && right_stream_class_name) { | |
276 | ret = strcmp(left_stream_class_name, right_stream_class_name); | |
277 | if (ret != 0) { | |
278 | goto end; | |
279 | } | |
280 | } else if (!left_stream_class_name && right_stream_class_name) { | |
281 | ret = -1; | |
282 | goto end; | |
283 | } else if (left_stream_class_name && !right_stream_class_name) { | |
284 | ret = 1; | |
285 | goto end; | |
286 | } | |
287 | ||
288 | /* Compare stream class automatic event class id assignment. */ | |
289 | if (bt_stream_class_assigns_automatic_event_class_id(left_stream_class) && | |
290 | !bt_stream_class_assigns_automatic_event_class_id(right_stream_class)) { | |
291 | ret = 1; | |
292 | goto end; | |
293 | } else if (!bt_stream_class_assigns_automatic_event_class_id(left_stream_class) && | |
294 | bt_stream_class_assigns_automatic_event_class_id(right_stream_class)) { | |
295 | ret = -1; | |
296 | goto end; | |
297 | } | |
298 | ||
299 | /* Compare stream class automatic stream id assignment. */ | |
300 | if (bt_stream_class_assigns_automatic_stream_id(left_stream_class) && | |
301 | !bt_stream_class_assigns_automatic_stream_id(right_stream_class)) { | |
302 | ret = 1; | |
303 | goto end; | |
304 | } else if (!bt_stream_class_assigns_automatic_stream_id(left_stream_class) && | |
305 | bt_stream_class_assigns_automatic_stream_id(right_stream_class)) { | |
306 | ret = -1; | |
307 | goto end; | |
308 | } | |
309 | ||
310 | /* Compare stream class support of discarded events. */ | |
311 | if (bt_stream_class_supports_discarded_events(left_stream_class) && | |
312 | !bt_stream_class_supports_discarded_events(right_stream_class)) { | |
313 | ret = 1; | |
314 | goto end; | |
315 | } else if (!bt_stream_class_supports_discarded_events(left_stream_class) && | |
316 | bt_stream_class_supports_discarded_events(right_stream_class)) { | |
317 | ret = -1; | |
318 | goto end; | |
319 | } | |
320 | ||
321 | /* Compare stream class discarded events default clock snapshot. */ | |
322 | if (bt_stream_class_discarded_events_have_default_clock_snapshots(left_stream_class) && | |
323 | !bt_stream_class_discarded_events_have_default_clock_snapshots(right_stream_class)) { | |
324 | ret = 1; | |
325 | goto end; | |
326 | } else if (!bt_stream_class_discarded_events_have_default_clock_snapshots(left_stream_class) && | |
327 | bt_stream_class_discarded_events_have_default_clock_snapshots(right_stream_class)) { | |
328 | ret = -1; | |
329 | goto end; | |
330 | } | |
331 | ||
332 | /* Compare stream class support of packets. */ | |
333 | if (bt_stream_class_supports_packets(left_stream_class) && | |
334 | !bt_stream_class_supports_packets(right_stream_class)) { | |
335 | ret = 1; | |
336 | goto end; | |
337 | } else if (!bt_stream_class_supports_packets(left_stream_class) && | |
338 | bt_stream_class_supports_packets(right_stream_class)) { | |
339 | ret = -1; | |
340 | goto end; | |
341 | } | |
342 | ||
94bec82e SM |
343 | if (bt_stream_class_supports_packets(left_stream_class)) { |
344 | /* | |
345 | * Compare stream class presence of discarded packets beginning default | |
346 | * clock snapshot. | |
347 | */ | |
348 | if (bt_stream_class_packets_have_beginning_default_clock_snapshot(left_stream_class) && | |
349 | !bt_stream_class_packets_have_beginning_default_clock_snapshot(right_stream_class)) { | |
350 | ret = 1; | |
351 | goto end; | |
352 | } else if (!bt_stream_class_packets_have_beginning_default_clock_snapshot(left_stream_class) && | |
353 | bt_stream_class_packets_have_beginning_default_clock_snapshot(right_stream_class)) { | |
354 | ret = -1; | |
355 | goto end; | |
356 | } | |
1aca5200 | 357 | |
94bec82e SM |
358 | /* |
359 | * Compare stream class presence of discarded packets end default clock | |
360 | * snapshot. | |
361 | */ | |
362 | if (bt_stream_class_packets_have_end_default_clock_snapshot(left_stream_class) && | |
363 | !bt_stream_class_packets_have_end_default_clock_snapshot(right_stream_class)) { | |
364 | ret = 1; | |
365 | goto end; | |
366 | } else if (!bt_stream_class_packets_have_end_default_clock_snapshot(left_stream_class) && | |
367 | bt_stream_class_packets_have_end_default_clock_snapshot(right_stream_class)) { | |
368 | ret = -1; | |
369 | goto end; | |
370 | } | |
1aca5200 | 371 | |
94bec82e SM |
372 | /* Compare stream class support of discarded packets. */ |
373 | if (bt_stream_class_supports_discarded_packets(left_stream_class) && | |
374 | !bt_stream_class_supports_discarded_packets(right_stream_class)) { | |
375 | ret = 1; | |
376 | goto end; | |
377 | } else if (!bt_stream_class_supports_discarded_packets(left_stream_class) && | |
378 | bt_stream_class_supports_discarded_packets(right_stream_class)) { | |
379 | ret = -1; | |
380 | goto end; | |
381 | } | |
382 | ||
383 | /* Compare stream class discarded packets default clock snapshot. */ | |
384 | if (bt_stream_class_discarded_packets_have_default_clock_snapshots(left_stream_class) && | |
385 | !bt_stream_class_discarded_packets_have_default_clock_snapshots(right_stream_class)) { | |
386 | ret = 1; | |
387 | goto end; | |
388 | } else if (!bt_stream_class_discarded_packets_have_default_clock_snapshots(left_stream_class) && | |
389 | bt_stream_class_discarded_packets_have_default_clock_snapshots(right_stream_class)) { | |
390 | ret = -1; | |
391 | goto end; | |
392 | } | |
1aca5200 FD |
393 | } |
394 | ||
94bec82e SM |
395 | /* Compare the clock classes associated to the stream classes. */ |
396 | left_cc = bt_stream_class_borrow_default_clock_class_const(left_stream_class); | |
397 | right_cc = bt_stream_class_borrow_default_clock_class_const(right_stream_class); | |
398 | ||
399 | if (!left_cc && !right_cc) { | |
400 | ret = compare_clock_classes(left_cc, right_cc); | |
401 | ||
402 | if (ret != 0) { | |
403 | goto end; | |
404 | } | |
405 | } else if (left_cc && !right_cc) { | |
1aca5200 FD |
406 | ret = -1; |
407 | goto end; | |
94bec82e | 408 | } else if (!left_cc && right_cc) { |
1aca5200 FD |
409 | ret = 1; |
410 | goto end; | |
1aca5200 FD |
411 | } |
412 | ||
413 | end: | |
414 | return ret; | |
415 | } | |
416 | ||
417 | static | |
7e3c441e | 418 | int compare_clock_snapshots(const bt_clock_snapshot *left_cs, |
1aca5200 FD |
419 | const bt_clock_snapshot *right_cs) |
420 | { | |
7e3c441e SM |
421 | uint64_t left_cs_value = bt_clock_snapshot_get_value(left_cs); |
422 | uint64_t right_cs_value = bt_clock_snapshot_get_value(right_cs); | |
1aca5200 | 423 | |
7e3c441e | 424 | return left_cs_value - right_cs_value; |
1aca5200 FD |
425 | } |
426 | ||
427 | static | |
428 | const bt_stream *borrow_stream(const bt_message *msg) | |
429 | { | |
430 | bt_message_type msg_type = bt_message_get_type(msg); | |
431 | const bt_stream *stream = NULL; | |
432 | const bt_packet *packet = NULL; | |
433 | const bt_event *event = NULL; | |
434 | ||
435 | switch (msg_type) { | |
436 | case BT_MESSAGE_TYPE_STREAM_BEGINNING: | |
437 | stream = bt_message_stream_beginning_borrow_stream_const(msg); | |
438 | break; | |
439 | case BT_MESSAGE_TYPE_STREAM_END: | |
440 | stream = bt_message_stream_end_borrow_stream_const(msg); | |
441 | break; | |
442 | case BT_MESSAGE_TYPE_PACKET_BEGINNING: | |
443 | packet = bt_message_packet_beginning_borrow_packet_const(msg); | |
444 | stream = bt_packet_borrow_stream_const(packet); | |
445 | break; | |
446 | case BT_MESSAGE_TYPE_PACKET_END: | |
447 | packet = bt_message_packet_end_borrow_packet_const(msg); | |
448 | stream = bt_packet_borrow_stream_const(packet); | |
449 | break; | |
450 | case BT_MESSAGE_TYPE_EVENT: | |
451 | event = bt_message_event_borrow_event_const(msg); | |
452 | stream = bt_event_borrow_stream_const(event); | |
453 | break; | |
454 | case BT_MESSAGE_TYPE_DISCARDED_EVENTS: | |
455 | stream = bt_message_discarded_events_borrow_stream_const(msg); | |
456 | break; | |
457 | case BT_MESSAGE_TYPE_DISCARDED_PACKETS: | |
458 | stream = bt_message_discarded_packets_borrow_stream_const(msg); | |
459 | break; | |
460 | case BT_MESSAGE_TYPE_MESSAGE_ITERATOR_INACTIVITY: | |
461 | goto end; | |
462 | default: | |
498e7994 | 463 | bt_common_abort(); |
1aca5200 FD |
464 | } |
465 | ||
466 | end: | |
467 | return stream; | |
468 | } | |
469 | ||
470 | static | |
471 | const bt_trace *borrow_trace(const bt_message *msg) | |
472 | { | |
473 | const bt_trace *trace = NULL; | |
474 | const bt_stream *stream = NULL; | |
475 | ||
476 | stream = borrow_stream(msg); | |
477 | if (stream) { | |
478 | trace = bt_stream_borrow_trace_const(stream); | |
479 | } | |
480 | ||
481 | return trace; | |
482 | } | |
483 | ||
484 | static | |
485 | int compare_messages_by_trace_name(struct messages_to_compare *msgs) | |
486 | { | |
487 | int ret = 0; | |
488 | const char *left_trace_name = NULL, *right_trace_name = NULL; | |
489 | ||
490 | if (msgs->left.trace && !msgs->right.trace) { | |
491 | ret = -1; | |
492 | goto end; | |
493 | } | |
494 | ||
495 | if (!msgs->left.trace && msgs->right.trace) { | |
496 | ret = 1; | |
497 | goto end; | |
498 | } | |
499 | ||
500 | if (!msgs->left.trace && !msgs->right.trace) { | |
501 | ret = 0; | |
502 | goto end; | |
503 | } | |
504 | ||
505 | left_trace_name = bt_trace_get_name(msgs->left.trace); | |
506 | right_trace_name = bt_trace_get_name(msgs->right.trace); | |
507 | ||
508 | if (left_trace_name && !right_trace_name) { | |
509 | ret = -1; | |
510 | goto end; | |
511 | } | |
512 | ||
513 | if (!left_trace_name && right_trace_name) { | |
514 | ret = 1; | |
515 | goto end; | |
516 | } | |
517 | ||
518 | if (!left_trace_name && !right_trace_name) { | |
519 | ret = 0; | |
520 | goto end; | |
521 | } | |
522 | ||
523 | ret = strcmp(left_trace_name, right_trace_name); | |
524 | end: | |
525 | return ret; | |
526 | } | |
527 | ||
528 | static | |
529 | int compare_messages_by_trace_uuid(struct messages_to_compare *msgs) | |
530 | { | |
531 | int ret = 0; | |
532 | bt_uuid left_trace_uuid = NULL, right_trace_uuid = NULL; | |
533 | ||
534 | if (msgs->left.trace && !msgs->right.trace) { | |
535 | ret = -1; | |
536 | goto end; | |
537 | } | |
538 | ||
539 | if (!msgs->left.trace && msgs->right.trace) { | |
540 | ret = 1; | |
541 | goto end; | |
542 | } | |
543 | ||
544 | if (!msgs->left.trace && !msgs->right.trace) { | |
545 | ret = 0; | |
546 | goto end; | |
547 | } | |
548 | ||
549 | left_trace_uuid = bt_trace_get_uuid(msgs->left.trace); | |
550 | right_trace_uuid = bt_trace_get_uuid(msgs->right.trace); | |
551 | ||
552 | if (left_trace_uuid && !right_trace_uuid) { | |
553 | ret = -1; | |
554 | goto end; | |
555 | } | |
556 | ||
557 | if (!left_trace_uuid && right_trace_uuid) { | |
558 | ret = 1; | |
559 | goto end; | |
560 | } | |
561 | ||
562 | if (!left_trace_uuid && !right_trace_uuid) { | |
563 | ret = 0; | |
564 | goto end; | |
565 | } | |
566 | ||
567 | ret = bt_uuid_compare(left_trace_uuid, right_trace_uuid); | |
568 | end: | |
569 | return ret; | |
570 | } | |
571 | ||
572 | static | |
573 | int compare_messages_by_stream_class_id(struct messages_to_compare *msgs) | |
574 | { | |
575 | int ret = 0; | |
576 | uint64_t left_stream_class_id = 0, right_stream_class_id = 0; | |
577 | ||
578 | if (msgs->left.stream && !msgs->right.stream) { | |
579 | ret = -1; | |
580 | goto end; | |
581 | } | |
582 | ||
583 | if (!msgs->left.stream && msgs->right.stream) { | |
584 | ret = 1; | |
585 | goto end; | |
586 | } | |
587 | ||
588 | if (!msgs->left.stream && !msgs->right.stream) { | |
589 | ret = 0; | |
590 | goto end; | |
591 | } | |
592 | ||
593 | left_stream_class_id = bt_stream_class_get_id( | |
594 | bt_stream_borrow_class_const(msgs->left.stream)); | |
595 | ||
596 | right_stream_class_id = bt_stream_class_get_id( | |
597 | bt_stream_borrow_class_const(msgs->right.stream)); | |
598 | ||
599 | if (left_stream_class_id == right_stream_class_id) { | |
600 | ret = 0; | |
601 | goto end; | |
602 | } | |
603 | ||
604 | ret = (left_stream_class_id < right_stream_class_id) ? -1 : 1; | |
605 | ||
606 | end: | |
607 | return ret; | |
608 | } | |
609 | ||
610 | static | |
611 | int compare_messages_by_stream_id(struct messages_to_compare *msgs) | |
612 | { | |
613 | int ret = 0; | |
614 | uint64_t left_stream_id = 0, right_stream_id = 0; | |
615 | ||
616 | if (msgs->left.stream && !msgs->right.stream) { | |
617 | ret = -1; | |
618 | goto end; | |
619 | } | |
620 | ||
621 | if (!msgs->left.stream && msgs->right.stream) { | |
622 | ret = 1; | |
623 | goto end; | |
624 | } | |
625 | ||
626 | if (!msgs->left.stream && !msgs->right.stream) { | |
627 | ret = 0; | |
628 | goto end; | |
629 | } | |
630 | ||
631 | left_stream_id = bt_stream_get_id(msgs->left.stream); | |
632 | right_stream_id = bt_stream_get_id(msgs->right.stream); | |
633 | ||
634 | if (left_stream_id == right_stream_id) { | |
635 | ret = 0; | |
636 | goto end; | |
637 | } | |
638 | ||
639 | ret = (left_stream_id < right_stream_id) ? -1 : 1; | |
640 | ||
641 | end: | |
642 | return ret; | |
643 | } | |
644 | ||
645 | static | |
646 | int compare_messages_same_type(struct messages_to_compare *msgs) | |
647 | { | |
648 | int ret = 0; | |
649 | ||
650 | /* | |
94bec82e | 651 | * Both messages are of the same type, we must compare characteristics of |
1aca5200 FD |
652 | * the messages such as the attributes of the event in a event message. |
653 | */ | |
09a4c519 | 654 | BT_ASSERT_DBG(bt_message_get_type(msgs->left.msg) == |
1aca5200 FD |
655 | bt_message_get_type(msgs->right.msg)); |
656 | ||
657 | switch (bt_message_get_type(msgs->left.msg)) { | |
658 | case BT_MESSAGE_TYPE_STREAM_BEGINNING: | |
659 | /* Fall-through */ | |
660 | case BT_MESSAGE_TYPE_STREAM_END: | |
661 | /* Fall-through */ | |
662 | case BT_MESSAGE_TYPE_PACKET_BEGINNING: | |
663 | /* Fall-through */ | |
664 | case BT_MESSAGE_TYPE_PACKET_END: | |
665 | ret = compare_streams(msgs->left.stream, msgs->right.stream); | |
666 | if (ret) { | |
667 | goto end; | |
668 | } | |
669 | ||
670 | break; | |
671 | case BT_MESSAGE_TYPE_EVENT: | |
672 | { | |
673 | const bt_event *left_event, *right_event; | |
674 | left_event = bt_message_event_borrow_event_const(msgs->left.msg); | |
675 | right_event = bt_message_event_borrow_event_const(msgs->right.msg); | |
676 | ||
677 | ret = compare_events(left_event, right_event); | |
678 | if (ret) { | |
679 | goto end; | |
680 | } | |
681 | ||
682 | ret = compare_streams(msgs->left.stream, msgs->right.stream); | |
683 | if (ret) { | |
684 | goto end; | |
685 | } | |
686 | break; | |
687 | } | |
688 | case BT_MESSAGE_TYPE_DISCARDED_EVENTS: | |
689 | { | |
690 | const bt_stream_class *left_stream_class; | |
691 | bt_property_availability left_event_count_avail, | |
692 | right_event_count_avail; | |
693 | uint64_t left_event_count, right_event_count; | |
694 | ||
695 | /* | |
696 | * Compare streams first to check if there is a | |
697 | * mismatch about discarded event related configuration | |
698 | * in the stream class. | |
699 | */ | |
700 | ret = compare_streams(msgs->left.stream, msgs->right.stream); | |
701 | if (ret) { | |
702 | goto end; | |
703 | } | |
704 | ||
705 | left_stream_class = bt_stream_borrow_class_const(msgs->left.stream); | |
706 | if (bt_stream_class_discarded_events_have_default_clock_snapshots( | |
707 | left_stream_class)) { | |
708 | const bt_clock_snapshot *left_beg_cs = | |
709 | bt_message_discarded_events_borrow_beginning_default_clock_snapshot_const(msgs->left.msg); | |
710 | const bt_clock_snapshot *right_beg_cs = | |
711 | bt_message_discarded_events_borrow_beginning_default_clock_snapshot_const(msgs->right.msg); | |
712 | const bt_clock_snapshot *left_end_cs = | |
713 | bt_message_discarded_events_borrow_end_default_clock_snapshot_const(msgs->left.msg); | |
714 | const bt_clock_snapshot *right_end_cs = | |
715 | bt_message_discarded_events_borrow_end_default_clock_snapshot_const(msgs->right.msg); | |
716 | ||
7e3c441e | 717 | ret = compare_clock_snapshots(left_beg_cs, right_beg_cs); |
1aca5200 FD |
718 | if (ret) { |
719 | goto end; | |
720 | } | |
721 | ||
7e3c441e | 722 | ret = compare_clock_snapshots(left_end_cs, right_end_cs); |
1aca5200 FD |
723 | if (ret) { |
724 | goto end; | |
725 | } | |
7e3c441e SM |
726 | |
727 | ret = compare_clock_classes( | |
728 | bt_clock_snapshot_borrow_clock_class_const(left_beg_cs), | |
729 | bt_clock_snapshot_borrow_clock_class_const(right_beg_cs)); | |
730 | if (ret != 0) { | |
731 | goto end; | |
732 | } | |
1aca5200 FD |
733 | } |
734 | ||
735 | left_event_count_avail = | |
736 | bt_message_discarded_events_get_count( | |
737 | msgs->left.msg, &left_event_count); | |
738 | right_event_count_avail = | |
739 | bt_message_discarded_events_get_count( | |
740 | msgs->right.msg, &right_event_count); | |
741 | if (left_event_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE && | |
742 | right_event_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) { | |
743 | ret = left_event_count - right_event_count; | |
744 | if (ret != 0) { | |
745 | goto end; | |
746 | } | |
747 | } else if (left_event_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE && | |
748 | right_event_count_avail == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE) { | |
749 | ret = -1; | |
750 | goto end; | |
751 | } else if (left_event_count_avail == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE && | |
752 | right_event_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) { | |
753 | ret = 1; | |
754 | goto end; | |
755 | } | |
756 | ||
757 | break; | |
758 | } | |
759 | case BT_MESSAGE_TYPE_DISCARDED_PACKETS: | |
760 | { | |
761 | const bt_stream_class *left_stream_class; | |
762 | bt_property_availability left_packet_count_avail, | |
763 | right_packet_count_avail; | |
764 | uint64_t left_packet_count, right_packet_count; | |
765 | ||
766 | /* | |
767 | * Compare streams first to check if there is a | |
768 | * mismatch about discarded packets related | |
769 | * configuration in the stream class. | |
770 | */ | |
771 | ret = compare_streams(msgs->left.stream, msgs->right.stream); | |
772 | if (ret) { | |
773 | goto end; | |
774 | } | |
775 | ||
776 | left_stream_class = bt_stream_borrow_class_const(msgs->left.stream); | |
777 | ||
778 | if (bt_stream_class_discarded_packets_have_default_clock_snapshots( | |
779 | left_stream_class)) { | |
780 | const bt_clock_snapshot *left_beg_cs = | |
781 | bt_message_discarded_packets_borrow_beginning_default_clock_snapshot_const(msgs->left.msg); | |
782 | const bt_clock_snapshot *right_beg_cs = | |
783 | bt_message_discarded_packets_borrow_beginning_default_clock_snapshot_const(msgs->right.msg); | |
784 | const bt_clock_snapshot *left_end_cs = | |
785 | bt_message_discarded_packets_borrow_end_default_clock_snapshot_const(msgs->left.msg); | |
786 | const bt_clock_snapshot *right_end_cs = | |
787 | bt_message_discarded_packets_borrow_end_default_clock_snapshot_const(msgs->right.msg); | |
788 | ||
7e3c441e | 789 | ret = compare_clock_snapshots(left_beg_cs, right_beg_cs); |
1aca5200 FD |
790 | if (ret) { |
791 | goto end; | |
792 | } | |
793 | ||
7e3c441e | 794 | ret = compare_clock_snapshots(left_end_cs, right_end_cs); |
1aca5200 FD |
795 | if (ret) { |
796 | goto end; | |
797 | } | |
7e3c441e SM |
798 | |
799 | ret = compare_clock_classes( | |
800 | bt_clock_snapshot_borrow_clock_class_const(left_beg_cs), | |
801 | bt_clock_snapshot_borrow_clock_class_const(right_beg_cs)); | |
802 | if (ret != 0) { | |
803 | goto end; | |
804 | } | |
1aca5200 FD |
805 | } |
806 | ||
807 | left_packet_count_avail = bt_message_discarded_packets_get_count( | |
808 | msgs->left.msg, &left_packet_count); | |
809 | right_packet_count_avail = bt_message_discarded_packets_get_count( | |
810 | msgs->right.msg, &right_packet_count); | |
811 | if (left_packet_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE && | |
812 | right_packet_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) { | |
813 | ret = left_packet_count - right_packet_count; | |
814 | if (ret != 0) { | |
815 | goto end; | |
816 | } | |
817 | } else if (left_packet_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE && | |
818 | right_packet_count_avail == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE) { | |
819 | ret = -1; | |
820 | goto end; | |
821 | } else if (left_packet_count_avail == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE && | |
822 | right_packet_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) { | |
823 | ret = 1; | |
824 | goto end; | |
825 | } | |
826 | ||
827 | break; | |
828 | } | |
829 | case BT_MESSAGE_TYPE_MESSAGE_ITERATOR_INACTIVITY: | |
830 | { | |
831 | const bt_clock_snapshot *left_cs = | |
60d02328 | 832 | bt_message_message_iterator_inactivity_borrow_clock_snapshot_const(msgs->left.msg); |
1aca5200 | 833 | const bt_clock_snapshot *right_cs = |
60d02328 | 834 | bt_message_message_iterator_inactivity_borrow_clock_snapshot_const(msgs->right.msg); |
1aca5200 | 835 | |
7e3c441e SM |
836 | ret = compare_clock_snapshots(left_cs, right_cs); |
837 | if (ret != 0) { | |
838 | goto end; | |
839 | } | |
840 | ||
841 | ret = compare_clock_classes( | |
842 | bt_clock_snapshot_borrow_clock_class_const(left_cs), | |
843 | bt_clock_snapshot_borrow_clock_class_const(right_cs)); | |
1aca5200 FD |
844 | if (ret != 0) { |
845 | goto end; | |
846 | } | |
847 | ||
848 | break; | |
849 | } | |
850 | default: | |
498e7994 | 851 | bt_common_abort(); |
1aca5200 FD |
852 | } |
853 | ||
854 | end: | |
855 | return ret; | |
856 | } | |
857 | ||
1aca5200 FD |
858 | int common_muxing_compare_messages(const bt_message *left_msg, |
859 | const bt_message *right_msg) | |
860 | { | |
861 | int ret = 0; | |
862 | struct messages_to_compare msgs; | |
863 | ||
09a4c519 | 864 | BT_ASSERT_DBG(left_msg != right_msg); |
1aca5200 FD |
865 | |
866 | msgs.left.msg = left_msg; | |
867 | msgs.left.trace = borrow_trace(left_msg); | |
868 | msgs.left.stream = borrow_stream(left_msg); | |
869 | ||
870 | msgs.right.msg = right_msg; | |
871 | msgs.right.trace = borrow_trace(right_msg); | |
872 | msgs.right.stream = borrow_stream(right_msg); | |
873 | ||
ccad54e5 JR |
874 | /* Same timestamp: compare trace UUIDs. */ |
875 | ret = compare_messages_by_trace_uuid(&msgs); | |
1aca5200 FD |
876 | if (ret) { |
877 | goto end; | |
878 | } | |
879 | ||
ccad54e5 JR |
880 | /* Same timestamp and trace UUID: compare trace names. */ |
881 | ret = compare_messages_by_trace_name(&msgs); | |
1aca5200 FD |
882 | if (ret) { |
883 | goto end; | |
884 | } | |
885 | ||
886 | /* | |
887 | * Same timestamp, trace name, and trace UUID: compare stream class | |
888 | * IDs. | |
889 | */ | |
890 | ret = compare_messages_by_stream_class_id(&msgs); | |
891 | if (ret) { | |
892 | goto end; | |
893 | } | |
894 | ||
895 | /* | |
896 | * Same timestamp, trace name, trace UUID, and stream class ID: compare | |
897 | * stream IDs. | |
898 | */ | |
899 | ret = compare_messages_by_stream_id(&msgs); | |
900 | if (ret) { | |
901 | goto end; | |
902 | } | |
903 | ||
904 | if (bt_message_get_type(msgs.left.msg) != | |
905 | bt_message_get_type(msgs.right.msg)) { | |
906 | /* | |
907 | * The messages are of different type, we order (arbitrarily) | |
908 | * in the following way: | |
909 | * SB < PB < EV < DE < MI < PE < DP < SE | |
910 | */ | |
911 | ret = compare_messages_by_type(&msgs); | |
912 | if (ret) { | |
913 | goto end; | |
914 | } | |
915 | } else { | |
916 | /* The messages are of the same type. */ | |
917 | ret = compare_messages_same_type(&msgs); | |
918 | if (ret) { | |
919 | goto end; | |
920 | } | |
921 | } | |
922 | ||
923 | end: | |
924 | return ret; | |
925 | } |