Commit | Line | Data |
---|---|---|
9240924b FD |
1 | /* |
2 | * Copyright 2019 Francis Deslauriers <francis.deslauriers@efficios.com> | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
5 | * of this software and associated documentation files (the "Software"), to deal | |
6 | * in the Software without restriction, including without limitation the rights | |
7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
8 | * copies of the Software, and to permit persons to whom the Software is | |
9 | * furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
17 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
19 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
20 | * SOFTWARE. | |
21 | */ | |
22 | ||
23 | #include <babeltrace2/babeltrace.h> | |
24 | ||
25 | #include <inttypes.h> | |
26 | #include <stdlib.h> | |
27 | #include <string.h> | |
28 | ||
29 | #include "common/assert.h" | |
24847fc7 | 30 | #include "common/common.h" |
9240924b FD |
31 | #include "common/macros.h" |
32 | #include "common/uuid.h" | |
33 | ||
34 | #include "muxing.h" | |
35 | ||
36 | struct message_to_compare { | |
37 | const bt_message *msg; | |
38 | const bt_trace *trace; | |
39 | const bt_stream *stream; | |
40 | }; | |
41 | ||
42 | struct messages_to_compare { | |
43 | struct message_to_compare left; | |
44 | struct message_to_compare right; | |
45 | }; | |
46 | ||
47 | static | |
48 | int message_type_weight(const bt_message_type msg_type) | |
49 | { | |
50 | int weight; | |
51 | ||
52 | switch (msg_type) { | |
53 | case BT_MESSAGE_TYPE_STREAM_BEGINNING: | |
54 | weight = 7; | |
55 | break; | |
56 | case BT_MESSAGE_TYPE_PACKET_BEGINNING: | |
57 | weight = 6; | |
58 | break; | |
59 | case BT_MESSAGE_TYPE_EVENT: | |
60 | weight = 5; | |
61 | break; | |
62 | case BT_MESSAGE_TYPE_DISCARDED_EVENTS: | |
63 | weight = 4; | |
64 | break; | |
65 | case BT_MESSAGE_TYPE_PACKET_END: | |
66 | weight = 3; | |
67 | break; | |
68 | case BT_MESSAGE_TYPE_MESSAGE_ITERATOR_INACTIVITY: | |
69 | weight = 2; | |
70 | break; | |
71 | case BT_MESSAGE_TYPE_DISCARDED_PACKETS: | |
72 | weight = 1; | |
73 | break; | |
74 | case BT_MESSAGE_TYPE_STREAM_END: | |
75 | weight = 0; | |
76 | break; | |
77 | default: | |
24847fc7 | 78 | bt_common_abort(); |
9240924b FD |
79 | } |
80 | ||
81 | return weight; | |
82 | } | |
83 | ||
84 | /* | |
85 | * Compare 2 messages to order them in a determinitic way based on their | |
86 | * types. | |
87 | * Returns -1 is left mesage must go first | |
88 | * Returns 1 is right mesage must go first | |
89 | */ | |
90 | static | |
91 | int compare_messages_by_type(struct messages_to_compare *msgs) | |
92 | { | |
93 | bt_message_type left_msg_type = bt_message_get_type(msgs->left.msg); | |
94 | bt_message_type right_msg_type = bt_message_get_type(msgs->right.msg); | |
95 | ||
96 | return message_type_weight(right_msg_type) - | |
97 | message_type_weight(left_msg_type); | |
98 | } | |
99 | ||
100 | static | |
101 | int compare_events(const bt_event *left_event, const bt_event *right_event) | |
102 | { | |
103 | int ret = 0; | |
104 | const bt_event_class *left_event_class, *right_event_class; | |
105 | uint64_t left_event_class_id, right_event_class_id; | |
106 | const char *left_event_class_name, *right_event_class_name, | |
107 | *left_event_class_emf_uri, *right_event_class_emf_uri; | |
108 | bt_event_class_log_level left_event_class_log_level, right_event_class_log_level; | |
109 | bt_property_availability left_log_level_avail, right_log_level_avail; | |
110 | ||
111 | left_event_class = bt_event_borrow_class_const(left_event); | |
112 | right_event_class = bt_event_borrow_class_const(right_event); | |
113 | ||
114 | left_event_class_id = bt_event_class_get_id(left_event_class); | |
115 | right_event_class_id = bt_event_class_get_id(right_event_class); | |
116 | ||
117 | if (left_event_class_id > right_event_class_id) { | |
118 | ret = 1; | |
119 | goto end; | |
120 | } else if (left_event_class_id < right_event_class_id) { | |
121 | ret = -1; | |
122 | goto end; | |
123 | } | |
124 | ||
125 | left_event_class_name = bt_event_class_get_name(left_event_class); | |
126 | right_event_class_name = bt_event_class_get_name(right_event_class); | |
127 | if (left_event_class_name && right_event_class_name) { | |
128 | ret = strcmp(left_event_class_name, right_event_class_name); | |
129 | if (ret != 0) { | |
130 | goto end; | |
131 | } | |
132 | } else if (!left_event_class_name && right_event_class_name) { | |
133 | ret = -1; | |
134 | goto end; | |
135 | } else if (left_event_class_name && !right_event_class_name) { | |
136 | ret = 1; | |
137 | goto end; | |
138 | } | |
139 | ||
140 | left_log_level_avail = bt_event_class_get_log_level(left_event_class, | |
141 | &left_event_class_log_level); | |
142 | right_log_level_avail = bt_event_class_get_log_level(right_event_class, | |
143 | &right_event_class_log_level); | |
144 | ||
145 | if (left_log_level_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE && | |
146 | right_log_level_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) { | |
147 | ret = left_event_class_log_level - right_event_class_log_level; | |
148 | if (ret) { | |
149 | goto end; | |
150 | } | |
151 | } else if (left_log_level_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE && | |
152 | right_log_level_avail == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE) { | |
153 | ret = -1; | |
154 | goto end; | |
155 | } else if (left_log_level_avail == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE && | |
156 | right_log_level_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) { | |
157 | ret = 1; | |
158 | goto end; | |
159 | } | |
160 | ||
161 | left_event_class_emf_uri = bt_event_class_get_emf_uri(left_event_class); | |
162 | right_event_class_emf_uri = bt_event_class_get_emf_uri(right_event_class); | |
163 | if (left_event_class_emf_uri && right_event_class_emf_uri) { | |
164 | ret = strcmp(left_event_class_emf_uri, right_event_class_emf_uri); | |
165 | if (ret != 0) { | |
166 | goto end; | |
167 | } | |
168 | } else if (!left_event_class_emf_uri && right_event_class_emf_uri) { | |
169 | ret = -1; | |
170 | goto end; | |
171 | } else if (left_event_class_emf_uri && !right_event_class_emf_uri) { | |
172 | ret = 1; | |
173 | goto end; | |
174 | } | |
175 | ||
176 | end: | |
177 | return ret; | |
178 | } | |
179 | ||
180 | static | |
181 | int compare_streams(const bt_stream *left_stream, const bt_stream *right_stream) | |
182 | { | |
183 | int ret = 0; | |
184 | const char *left_stream_name, *right_stream_name, | |
185 | *left_stream_class_name, *right_stream_class_name; | |
186 | const bt_stream_class *left_stream_class, *right_stream_class; | |
187 | ||
188 | /* | |
189 | * No need to compare stream id as it was checked earlier and if we are | |
190 | * here it means they are identical or both absent. | |
191 | */ | |
192 | BT_ASSERT(bt_stream_get_id(left_stream) == | |
193 | bt_stream_get_id(right_stream)); | |
194 | ||
195 | /* Compare stream name. */ | |
196 | left_stream_name = bt_stream_get_name(left_stream); | |
197 | right_stream_name = bt_stream_get_name(right_stream); | |
198 | ||
199 | if (left_stream_name && right_stream_name) { | |
200 | ret = strcmp(left_stream_name, right_stream_name); | |
201 | if (ret != 0) { | |
202 | goto end; | |
203 | } | |
204 | } else if (!left_stream_name && right_stream_name) { | |
205 | ret = -1; | |
206 | goto end; | |
207 | } else if (left_stream_name && !right_stream_name) { | |
208 | ret = 1; | |
209 | goto end; | |
210 | } | |
211 | ||
212 | left_stream_class = bt_stream_borrow_class_const(left_stream); | |
213 | right_stream_class = bt_stream_borrow_class_const(right_stream); | |
214 | ||
215 | /* | |
216 | * No need to compare stream class id as it was checked earlier and if | |
217 | * we are here it means they are identical. | |
218 | */ | |
219 | BT_ASSERT(bt_stream_class_get_id(left_stream_class) == | |
220 | bt_stream_class_get_id(right_stream_class)); | |
221 | ||
222 | /* Compare stream class name. */ | |
223 | left_stream_class_name = bt_stream_class_get_name(left_stream_class); | |
224 | right_stream_class_name = bt_stream_class_get_name(right_stream_class); | |
225 | ||
226 | if (left_stream_class_name && right_stream_class_name) { | |
227 | ret = strcmp(left_stream_class_name, right_stream_class_name); | |
228 | if (ret != 0) { | |
229 | goto end; | |
230 | } | |
231 | } else if (!left_stream_class_name && right_stream_class_name) { | |
232 | ret = -1; | |
233 | goto end; | |
234 | } else if (left_stream_class_name && !right_stream_class_name) { | |
235 | ret = 1; | |
236 | goto end; | |
237 | } | |
238 | ||
239 | /* Compare stream class automatic event class id assignment. */ | |
240 | if (bt_stream_class_assigns_automatic_event_class_id(left_stream_class) && | |
241 | !bt_stream_class_assigns_automatic_event_class_id(right_stream_class)) { | |
242 | ret = 1; | |
243 | goto end; | |
244 | } else if (!bt_stream_class_assigns_automatic_event_class_id(left_stream_class) && | |
245 | bt_stream_class_assigns_automatic_event_class_id(right_stream_class)) { | |
246 | ret = -1; | |
247 | goto end; | |
248 | } | |
249 | ||
250 | /* Compare stream class automatic stream id assignment. */ | |
251 | if (bt_stream_class_assigns_automatic_stream_id(left_stream_class) && | |
252 | !bt_stream_class_assigns_automatic_stream_id(right_stream_class)) { | |
253 | ret = 1; | |
254 | goto end; | |
255 | } else if (!bt_stream_class_assigns_automatic_stream_id(left_stream_class) && | |
256 | bt_stream_class_assigns_automatic_stream_id(right_stream_class)) { | |
257 | ret = -1; | |
258 | goto end; | |
259 | } | |
260 | ||
261 | /* Compare stream class support of discarded events. */ | |
262 | if (bt_stream_class_supports_discarded_events(left_stream_class) && | |
263 | !bt_stream_class_supports_discarded_events(right_stream_class)) { | |
264 | ret = 1; | |
265 | goto end; | |
266 | } else if (!bt_stream_class_supports_discarded_events(left_stream_class) && | |
267 | bt_stream_class_supports_discarded_events(right_stream_class)) { | |
268 | ret = -1; | |
269 | goto end; | |
270 | } | |
271 | ||
272 | /* Compare stream class discarded events default clock snapshot. */ | |
273 | if (bt_stream_class_discarded_events_have_default_clock_snapshots(left_stream_class) && | |
274 | !bt_stream_class_discarded_events_have_default_clock_snapshots(right_stream_class)) { | |
275 | ret = 1; | |
276 | goto end; | |
277 | } else if (!bt_stream_class_discarded_events_have_default_clock_snapshots(left_stream_class) && | |
278 | bt_stream_class_discarded_events_have_default_clock_snapshots(right_stream_class)) { | |
279 | ret = -1; | |
280 | goto end; | |
281 | } | |
282 | ||
283 | /* Compare stream class support of packets. */ | |
284 | if (bt_stream_class_supports_packets(left_stream_class) && | |
285 | !bt_stream_class_supports_packets(right_stream_class)) { | |
286 | ret = 1; | |
287 | goto end; | |
288 | } else if (!bt_stream_class_supports_packets(left_stream_class) && | |
289 | bt_stream_class_supports_packets(right_stream_class)) { | |
290 | ret = -1; | |
291 | goto end; | |
292 | } | |
293 | ||
294 | if (!bt_stream_class_supports_packets(left_stream_class)) { | |
295 | /* Skip all packet related checks. */ | |
296 | goto end; | |
297 | } | |
298 | ||
299 | /* | |
300 | * Compare stream class presence of discarded packets beginning default | |
301 | * clock snapshot. | |
302 | */ | |
303 | if (bt_stream_class_packets_have_beginning_default_clock_snapshot(left_stream_class) && | |
304 | !bt_stream_class_packets_have_beginning_default_clock_snapshot(right_stream_class)) { | |
305 | ret = 1; | |
306 | goto end; | |
307 | } else if (!bt_stream_class_packets_have_beginning_default_clock_snapshot(left_stream_class) && | |
308 | bt_stream_class_packets_have_beginning_default_clock_snapshot(right_stream_class)) { | |
309 | ret = -1; | |
310 | goto end; | |
311 | } | |
312 | ||
313 | /* | |
314 | * Compare stream class presence of discarded packets end default clock | |
315 | * snapshot. | |
316 | */ | |
317 | if (bt_stream_class_packets_have_end_default_clock_snapshot(left_stream_class) && | |
318 | !bt_stream_class_packets_have_end_default_clock_snapshot(right_stream_class)) { | |
319 | ret = 1; | |
320 | goto end; | |
321 | } else if (!bt_stream_class_packets_have_end_default_clock_snapshot(left_stream_class) && | |
322 | bt_stream_class_packets_have_end_default_clock_snapshot(right_stream_class)) { | |
323 | ret = -1; | |
324 | goto end; | |
325 | } | |
326 | ||
327 | /* Compare stream class support of discarded packets. */ | |
328 | if (bt_stream_class_supports_discarded_packets(left_stream_class) && | |
329 | !bt_stream_class_supports_discarded_packets(right_stream_class)) { | |
330 | ret = 1; | |
331 | goto end; | |
332 | } else if (!bt_stream_class_supports_discarded_packets(left_stream_class) && | |
333 | bt_stream_class_supports_discarded_packets(right_stream_class)) { | |
334 | ret = -1; | |
335 | goto end; | |
336 | } | |
337 | ||
338 | /* Compare stream class discarded packets default clock snapshot. */ | |
339 | if (bt_stream_class_discarded_packets_have_default_clock_snapshots(left_stream_class) && | |
340 | !bt_stream_class_discarded_packets_have_default_clock_snapshots(right_stream_class)) { | |
341 | ret = 1; | |
342 | goto end; | |
343 | } else if (!bt_stream_class_discarded_packets_have_default_clock_snapshots(left_stream_class) && | |
344 | bt_stream_class_discarded_packets_have_default_clock_snapshots(right_stream_class)) { | |
345 | ret = -1; | |
346 | goto end; | |
347 | } | |
348 | ||
349 | end: | |
350 | return ret; | |
351 | } | |
352 | ||
353 | static | |
354 | int compare_clock_snapshots_and_clock_classes(const bt_clock_snapshot *left_cs, | |
355 | const bt_clock_snapshot *right_cs) | |
356 | { | |
357 | int ret; | |
358 | uint64_t left_freq, right_freq, left_prec, right_prec; | |
359 | uint64_t left_cs_value, right_cs_value; | |
360 | const bt_clock_class *left_clock_class, *right_clock_class; | |
361 | const char *left_clock_class_name, *right_clock_class_name; | |
362 | left_cs_value = bt_clock_snapshot_get_value(left_cs); | |
363 | right_cs_value = bt_clock_snapshot_get_value(right_cs); | |
364 | bt_uuid left_clock_class_uuid, right_clock_class_uuid; | |
365 | ||
366 | ret = left_cs_value - right_cs_value; | |
367 | if (ret != 0) { | |
368 | goto end; | |
369 | } | |
370 | ||
371 | left_clock_class = bt_clock_snapshot_borrow_clock_class_const(left_cs); | |
372 | right_clock_class = bt_clock_snapshot_borrow_clock_class_const(right_cs); | |
373 | ||
374 | left_clock_class_uuid = bt_clock_class_get_uuid(left_clock_class); | |
375 | right_clock_class_uuid = bt_clock_class_get_uuid(right_clock_class); | |
376 | ||
377 | if (left_clock_class_uuid && !right_clock_class_uuid) { | |
378 | ret = -1; | |
379 | goto end; | |
380 | } else if (!left_clock_class_uuid && right_clock_class_uuid) { | |
381 | ret = 1; | |
382 | goto end; | |
383 | } else if (left_clock_class_uuid && right_clock_class_uuid) { | |
384 | ret = bt_uuid_compare(left_clock_class_uuid, | |
385 | right_clock_class_uuid); | |
386 | if (ret != 0) { | |
387 | goto end; | |
388 | } | |
389 | } | |
390 | ||
391 | ||
392 | left_clock_class_name = bt_clock_class_get_name(left_clock_class); | |
393 | right_clock_class_name = bt_clock_class_get_name(right_clock_class); | |
394 | ||
395 | if (left_clock_class_name && !right_clock_class_name) { | |
396 | ret = -1; | |
397 | goto end; | |
398 | } else if (!left_clock_class_name && right_clock_class_name) { | |
399 | ret = 1; | |
400 | goto end; | |
401 | } else if (left_clock_class_name && right_clock_class_name) { | |
402 | ret = strcmp(left_clock_class_name, right_clock_class_name); | |
403 | if (ret != 0) { | |
404 | goto end; | |
405 | } | |
406 | } | |
407 | ||
408 | left_freq = bt_clock_class_get_frequency(left_clock_class); | |
409 | right_freq = bt_clock_class_get_frequency(right_clock_class); | |
410 | ||
411 | ret = right_freq - left_freq; | |
412 | if (ret != 0) { | |
413 | goto end; | |
414 | } | |
415 | ||
416 | left_prec = bt_clock_class_get_precision(left_clock_class); | |
417 | right_prec = bt_clock_class_get_precision(right_clock_class); | |
418 | ||
419 | ret = right_prec - left_prec; | |
420 | if (ret != 0) { | |
421 | goto end; | |
422 | } | |
423 | ||
424 | end: | |
425 | return ret; | |
426 | } | |
427 | ||
428 | static | |
429 | const bt_stream *borrow_stream(const bt_message *msg) | |
430 | { | |
431 | bt_message_type msg_type = bt_message_get_type(msg); | |
432 | const bt_stream *stream = NULL; | |
433 | const bt_packet *packet = NULL; | |
434 | const bt_event *event = NULL; | |
435 | ||
436 | switch (msg_type) { | |
437 | case BT_MESSAGE_TYPE_STREAM_BEGINNING: | |
438 | stream = bt_message_stream_beginning_borrow_stream_const(msg); | |
439 | break; | |
440 | case BT_MESSAGE_TYPE_STREAM_END: | |
441 | stream = bt_message_stream_end_borrow_stream_const(msg); | |
442 | break; | |
443 | case BT_MESSAGE_TYPE_PACKET_BEGINNING: | |
444 | packet = bt_message_packet_beginning_borrow_packet_const(msg); | |
445 | stream = bt_packet_borrow_stream_const(packet); | |
446 | break; | |
447 | case BT_MESSAGE_TYPE_PACKET_END: | |
448 | packet = bt_message_packet_end_borrow_packet_const(msg); | |
449 | stream = bt_packet_borrow_stream_const(packet); | |
450 | break; | |
451 | case BT_MESSAGE_TYPE_EVENT: | |
452 | event = bt_message_event_borrow_event_const(msg); | |
453 | stream = bt_event_borrow_stream_const(event); | |
454 | break; | |
455 | case BT_MESSAGE_TYPE_DISCARDED_EVENTS: | |
456 | stream = bt_message_discarded_events_borrow_stream_const(msg); | |
457 | break; | |
458 | case BT_MESSAGE_TYPE_DISCARDED_PACKETS: | |
459 | stream = bt_message_discarded_packets_borrow_stream_const(msg); | |
460 | break; | |
461 | case BT_MESSAGE_TYPE_MESSAGE_ITERATOR_INACTIVITY: | |
462 | goto end; | |
463 | default: | |
24847fc7 | 464 | bt_common_abort(); |
9240924b FD |
465 | } |
466 | ||
467 | end: | |
468 | return stream; | |
469 | } | |
470 | ||
471 | static | |
472 | const bt_trace *borrow_trace(const bt_message *msg) | |
473 | { | |
474 | const bt_trace *trace = NULL; | |
475 | const bt_stream *stream = NULL; | |
476 | ||
477 | stream = borrow_stream(msg); | |
478 | if (stream) { | |
479 | trace = bt_stream_borrow_trace_const(stream); | |
480 | } | |
481 | ||
482 | return trace; | |
483 | } | |
484 | ||
485 | static | |
486 | int compare_messages_by_trace_name(struct messages_to_compare *msgs) | |
487 | { | |
488 | int ret = 0; | |
489 | const char *left_trace_name = NULL, *right_trace_name = NULL; | |
490 | ||
491 | if (msgs->left.trace && !msgs->right.trace) { | |
492 | ret = -1; | |
493 | goto end; | |
494 | } | |
495 | ||
496 | if (!msgs->left.trace && msgs->right.trace) { | |
497 | ret = 1; | |
498 | goto end; | |
499 | } | |
500 | ||
501 | if (!msgs->left.trace && !msgs->right.trace) { | |
502 | ret = 0; | |
503 | goto end; | |
504 | } | |
505 | ||
506 | left_trace_name = bt_trace_get_name(msgs->left.trace); | |
507 | right_trace_name = bt_trace_get_name(msgs->right.trace); | |
508 | ||
509 | if (left_trace_name && !right_trace_name) { | |
510 | ret = -1; | |
511 | goto end; | |
512 | } | |
513 | ||
514 | if (!left_trace_name && right_trace_name) { | |
515 | ret = 1; | |
516 | goto end; | |
517 | } | |
518 | ||
519 | if (!left_trace_name && !right_trace_name) { | |
520 | ret = 0; | |
521 | goto end; | |
522 | } | |
523 | ||
524 | ret = strcmp(left_trace_name, right_trace_name); | |
525 | end: | |
526 | return ret; | |
527 | } | |
528 | ||
529 | static | |
530 | int compare_messages_by_trace_uuid(struct messages_to_compare *msgs) | |
531 | { | |
532 | int ret = 0; | |
533 | bt_uuid left_trace_uuid = NULL, right_trace_uuid = NULL; | |
534 | ||
535 | if (msgs->left.trace && !msgs->right.trace) { | |
536 | ret = -1; | |
537 | goto end; | |
538 | } | |
539 | ||
540 | if (!msgs->left.trace && msgs->right.trace) { | |
541 | ret = 1; | |
542 | goto end; | |
543 | } | |
544 | ||
545 | if (!msgs->left.trace && !msgs->right.trace) { | |
546 | ret = 0; | |
547 | goto end; | |
548 | } | |
549 | ||
550 | left_trace_uuid = bt_trace_get_uuid(msgs->left.trace); | |
551 | right_trace_uuid = bt_trace_get_uuid(msgs->right.trace); | |
552 | ||
553 | if (left_trace_uuid && !right_trace_uuid) { | |
554 | ret = -1; | |
555 | goto end; | |
556 | } | |
557 | ||
558 | if (!left_trace_uuid && right_trace_uuid) { | |
559 | ret = 1; | |
560 | goto end; | |
561 | } | |
562 | ||
563 | if (!left_trace_uuid && !right_trace_uuid) { | |
564 | ret = 0; | |
565 | goto end; | |
566 | } | |
567 | ||
568 | ret = bt_uuid_compare(left_trace_uuid, right_trace_uuid); | |
569 | end: | |
570 | return ret; | |
571 | } | |
572 | ||
573 | static | |
574 | int compare_messages_by_stream_class_id(struct messages_to_compare *msgs) | |
575 | { | |
576 | int ret = 0; | |
577 | uint64_t left_stream_class_id = 0, right_stream_class_id = 0; | |
578 | ||
579 | if (msgs->left.stream && !msgs->right.stream) { | |
580 | ret = -1; | |
581 | goto end; | |
582 | } | |
583 | ||
584 | if (!msgs->left.stream && msgs->right.stream) { | |
585 | ret = 1; | |
586 | goto end; | |
587 | } | |
588 | ||
589 | if (!msgs->left.stream && !msgs->right.stream) { | |
590 | ret = 0; | |
591 | goto end; | |
592 | } | |
593 | ||
594 | left_stream_class_id = bt_stream_class_get_id( | |
595 | bt_stream_borrow_class_const(msgs->left.stream)); | |
596 | ||
597 | right_stream_class_id = bt_stream_class_get_id( | |
598 | bt_stream_borrow_class_const(msgs->right.stream)); | |
599 | ||
600 | if (left_stream_class_id == right_stream_class_id) { | |
601 | ret = 0; | |
602 | goto end; | |
603 | } | |
604 | ||
605 | ret = (left_stream_class_id < right_stream_class_id) ? -1 : 1; | |
606 | ||
607 | end: | |
608 | return ret; | |
609 | } | |
610 | ||
611 | static | |
612 | int compare_messages_by_stream_id(struct messages_to_compare *msgs) | |
613 | { | |
614 | int ret = 0; | |
615 | uint64_t left_stream_id = 0, right_stream_id = 0; | |
616 | ||
617 | if (msgs->left.stream && !msgs->right.stream) { | |
618 | ret = -1; | |
619 | goto end; | |
620 | } | |
621 | ||
622 | if (!msgs->left.stream && msgs->right.stream) { | |
623 | ret = 1; | |
624 | goto end; | |
625 | } | |
626 | ||
627 | if (!msgs->left.stream && !msgs->right.stream) { | |
628 | ret = 0; | |
629 | goto end; | |
630 | } | |
631 | ||
632 | left_stream_id = bt_stream_get_id(msgs->left.stream); | |
633 | right_stream_id = bt_stream_get_id(msgs->right.stream); | |
634 | ||
635 | if (left_stream_id == right_stream_id) { | |
636 | ret = 0; | |
637 | goto end; | |
638 | } | |
639 | ||
640 | ret = (left_stream_id < right_stream_id) ? -1 : 1; | |
641 | ||
642 | end: | |
643 | return ret; | |
644 | } | |
645 | ||
646 | static | |
647 | int compare_messages_same_type(struct messages_to_compare *msgs) | |
648 | { | |
649 | int ret = 0; | |
650 | ||
651 | /* | |
652 | * Both messages are of the same type, we must compare characterics of | |
653 | * the messages such as the attributes of the event in a event message. | |
654 | */ | |
655 | BT_ASSERT(bt_message_get_type(msgs->left.msg) == | |
656 | bt_message_get_type(msgs->right.msg)); | |
657 | ||
658 | switch (bt_message_get_type(msgs->left.msg)) { | |
659 | case BT_MESSAGE_TYPE_STREAM_BEGINNING: | |
660 | /* Fall-through */ | |
661 | case BT_MESSAGE_TYPE_STREAM_END: | |
662 | /* Fall-through */ | |
663 | case BT_MESSAGE_TYPE_PACKET_BEGINNING: | |
664 | /* Fall-through */ | |
665 | case BT_MESSAGE_TYPE_PACKET_END: | |
666 | ret = compare_streams(msgs->left.stream, msgs->right.stream); | |
667 | if (ret) { | |
668 | goto end; | |
669 | } | |
670 | ||
671 | break; | |
672 | case BT_MESSAGE_TYPE_EVENT: | |
673 | { | |
674 | const bt_event *left_event, *right_event; | |
675 | left_event = bt_message_event_borrow_event_const(msgs->left.msg); | |
676 | right_event = bt_message_event_borrow_event_const(msgs->right.msg); | |
677 | ||
678 | ret = compare_events(left_event, right_event); | |
679 | if (ret) { | |
680 | goto end; | |
681 | } | |
682 | ||
683 | ret = compare_streams(msgs->left.stream, msgs->right.stream); | |
684 | if (ret) { | |
685 | goto end; | |
686 | } | |
687 | break; | |
688 | } | |
689 | case BT_MESSAGE_TYPE_DISCARDED_EVENTS: | |
690 | { | |
691 | const bt_stream_class *left_stream_class; | |
692 | bt_property_availability left_event_count_avail, | |
693 | right_event_count_avail; | |
694 | uint64_t left_event_count, right_event_count; | |
695 | ||
696 | /* | |
697 | * Compare streams first to check if there is a | |
698 | * mismatch about discarded event related configuration | |
699 | * in the stream class. | |
700 | */ | |
701 | ret = compare_streams(msgs->left.stream, msgs->right.stream); | |
702 | if (ret) { | |
703 | goto end; | |
704 | } | |
705 | ||
706 | left_stream_class = bt_stream_borrow_class_const(msgs->left.stream); | |
707 | if (bt_stream_class_discarded_events_have_default_clock_snapshots( | |
708 | left_stream_class)) { | |
709 | const bt_clock_snapshot *left_beg_cs = | |
710 | bt_message_discarded_events_borrow_beginning_default_clock_snapshot_const(msgs->left.msg); | |
711 | const bt_clock_snapshot *right_beg_cs = | |
712 | bt_message_discarded_events_borrow_beginning_default_clock_snapshot_const(msgs->right.msg); | |
713 | const bt_clock_snapshot *left_end_cs = | |
714 | bt_message_discarded_events_borrow_end_default_clock_snapshot_const(msgs->left.msg); | |
715 | const bt_clock_snapshot *right_end_cs = | |
716 | bt_message_discarded_events_borrow_end_default_clock_snapshot_const(msgs->right.msg); | |
717 | ||
718 | ret = compare_clock_snapshots_and_clock_classes( | |
719 | left_beg_cs, right_beg_cs); | |
720 | if (ret) { | |
721 | goto end; | |
722 | } | |
723 | ||
724 | ret = compare_clock_snapshots_and_clock_classes( | |
725 | left_end_cs, right_end_cs); | |
726 | if (ret) { | |
727 | goto end; | |
728 | } | |
729 | } | |
730 | ||
731 | left_event_count_avail = | |
732 | bt_message_discarded_events_get_count( | |
733 | msgs->left.msg, &left_event_count); | |
734 | right_event_count_avail = | |
735 | bt_message_discarded_events_get_count( | |
736 | msgs->right.msg, &right_event_count); | |
737 | if (left_event_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE && | |
738 | right_event_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) { | |
739 | ret = left_event_count - right_event_count; | |
740 | if (ret != 0) { | |
741 | goto end; | |
742 | } | |
743 | } else if (left_event_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE && | |
744 | right_event_count_avail == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE) { | |
745 | ret = -1; | |
746 | goto end; | |
747 | } else if (left_event_count_avail == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE && | |
748 | right_event_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) { | |
749 | ret = 1; | |
750 | goto end; | |
751 | } | |
752 | ||
753 | break; | |
754 | } | |
755 | case BT_MESSAGE_TYPE_DISCARDED_PACKETS: | |
756 | { | |
757 | const bt_stream_class *left_stream_class; | |
758 | bt_property_availability left_packet_count_avail, | |
759 | right_packet_count_avail; | |
760 | uint64_t left_packet_count, right_packet_count; | |
761 | ||
762 | /* | |
763 | * Compare streams first to check if there is a | |
764 | * mismatch about discarded packets related | |
765 | * configuration in the stream class. | |
766 | */ | |
767 | ret = compare_streams(msgs->left.stream, msgs->right.stream); | |
768 | if (ret) { | |
769 | goto end; | |
770 | } | |
771 | ||
772 | left_stream_class = bt_stream_borrow_class_const(msgs->left.stream); | |
773 | ||
774 | if (bt_stream_class_discarded_packets_have_default_clock_snapshots( | |
775 | left_stream_class)) { | |
776 | const bt_clock_snapshot *left_beg_cs = | |
777 | bt_message_discarded_packets_borrow_beginning_default_clock_snapshot_const(msgs->left.msg); | |
778 | const bt_clock_snapshot *right_beg_cs = | |
779 | bt_message_discarded_packets_borrow_beginning_default_clock_snapshot_const(msgs->right.msg); | |
780 | const bt_clock_snapshot *left_end_cs = | |
781 | bt_message_discarded_packets_borrow_end_default_clock_snapshot_const(msgs->left.msg); | |
782 | const bt_clock_snapshot *right_end_cs = | |
783 | bt_message_discarded_packets_borrow_end_default_clock_snapshot_const(msgs->right.msg); | |
784 | ||
785 | ret = compare_clock_snapshots_and_clock_classes( | |
786 | left_beg_cs, right_beg_cs); | |
787 | if (ret) { | |
788 | goto end; | |
789 | } | |
790 | ||
791 | ret = compare_clock_snapshots_and_clock_classes( | |
792 | left_end_cs, right_end_cs); | |
793 | if (ret) { | |
794 | goto end; | |
795 | } | |
796 | } | |
797 | ||
798 | left_packet_count_avail = bt_message_discarded_packets_get_count( | |
799 | msgs->left.msg, &left_packet_count); | |
800 | right_packet_count_avail = bt_message_discarded_packets_get_count( | |
801 | msgs->right.msg, &right_packet_count); | |
802 | if (left_packet_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE && | |
803 | right_packet_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) { | |
804 | ret = left_packet_count - right_packet_count; | |
805 | if (ret != 0) { | |
806 | goto end; | |
807 | } | |
808 | } else if (left_packet_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE && | |
809 | right_packet_count_avail == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE) { | |
810 | ret = -1; | |
811 | goto end; | |
812 | } else if (left_packet_count_avail == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE && | |
813 | right_packet_count_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) { | |
814 | ret = 1; | |
815 | goto end; | |
816 | } | |
817 | ||
818 | break; | |
819 | } | |
820 | case BT_MESSAGE_TYPE_MESSAGE_ITERATOR_INACTIVITY: | |
821 | { | |
822 | const bt_clock_snapshot *left_cs = | |
62988c56 | 823 | bt_message_message_iterator_inactivity_borrow_clock_snapshot_const(msgs->left.msg); |
9240924b | 824 | const bt_clock_snapshot *right_cs = |
62988c56 | 825 | bt_message_message_iterator_inactivity_borrow_clock_snapshot_const(msgs->right.msg); |
9240924b FD |
826 | |
827 | ret = compare_clock_snapshots_and_clock_classes( | |
828 | left_cs, right_cs); | |
829 | if (ret != 0) { | |
830 | goto end; | |
831 | } | |
832 | ||
833 | break; | |
834 | } | |
835 | default: | |
24847fc7 | 836 | bt_common_abort(); |
9240924b FD |
837 | } |
838 | ||
839 | end: | |
840 | return ret; | |
841 | } | |
842 | ||
843 | BT_HIDDEN | |
844 | int common_muxing_compare_messages(const bt_message *left_msg, | |
845 | const bt_message *right_msg) | |
846 | { | |
847 | int ret = 0; | |
848 | struct messages_to_compare msgs; | |
849 | ||
850 | BT_ASSERT(left_msg != right_msg); | |
851 | ||
852 | msgs.left.msg = left_msg; | |
853 | msgs.left.trace = borrow_trace(left_msg); | |
854 | msgs.left.stream = borrow_stream(left_msg); | |
855 | ||
856 | msgs.right.msg = right_msg; | |
857 | msgs.right.trace = borrow_trace(right_msg); | |
858 | msgs.right.stream = borrow_stream(right_msg); | |
859 | ||
9cd6ac02 JR |
860 | /* Same timestamp: compare trace UUIDs. */ |
861 | ret = compare_messages_by_trace_uuid(&msgs); | |
9240924b FD |
862 | if (ret) { |
863 | goto end; | |
864 | } | |
865 | ||
9cd6ac02 JR |
866 | /* Same timestamp and trace UUID: compare trace names. */ |
867 | ret = compare_messages_by_trace_name(&msgs); | |
9240924b FD |
868 | if (ret) { |
869 | goto end; | |
870 | } | |
871 | ||
872 | /* | |
873 | * Same timestamp, trace name, and trace UUID: compare stream class | |
874 | * IDs. | |
875 | */ | |
876 | ret = compare_messages_by_stream_class_id(&msgs); | |
877 | if (ret) { | |
878 | goto end; | |
879 | } | |
880 | ||
881 | /* | |
882 | * Same timestamp, trace name, trace UUID, and stream class ID: compare | |
883 | * stream IDs. | |
884 | */ | |
885 | ret = compare_messages_by_stream_id(&msgs); | |
886 | if (ret) { | |
887 | goto end; | |
888 | } | |
889 | ||
890 | if (bt_message_get_type(msgs.left.msg) != | |
891 | bt_message_get_type(msgs.right.msg)) { | |
892 | /* | |
893 | * The messages are of different type, we order (arbitrarily) | |
894 | * in the following way: | |
895 | * SB < PB < EV < DE < MI < PE < DP < SE | |
896 | */ | |
897 | ret = compare_messages_by_type(&msgs); | |
898 | if (ret) { | |
899 | goto end; | |
900 | } | |
901 | } else { | |
902 | /* The messages are of the same type. */ | |
903 | ret = compare_messages_same_type(&msgs); | |
904 | if (ret) { | |
905 | goto end; | |
906 | } | |
907 | } | |
908 | ||
909 | end: | |
910 | return ret; | |
911 | } |