Commit | Line | Data |
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46322b33 MD |
1 | /* |
2 | * babeltrace-lib.c | |
3 | * | |
4 | * Babeltrace Trace Converter Library | |
5 | * | |
64fa3fec MD |
6 | * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation |
7 | * | |
8 | * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
46322b33 MD |
9 | * |
10 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
11 | * of this software and associated documentation files (the "Software"), to deal | |
12 | * in the Software without restriction, including without limitation the rights | |
13 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
14 | * copies of the Software, and to permit persons to whom the Software is | |
15 | * furnished to do so, subject to the following conditions: | |
16 | * | |
17 | * The above copyright notice and this permission notice shall be included in | |
18 | * all copies or substantial portions of the Software. | |
19 | */ | |
20 | ||
21 | #include <stdlib.h> | |
22 | #include <errno.h> | |
23 | #include <stdio.h> | |
847bf71a | 24 | #include <inttypes.h> |
70bd0a12 | 25 | #include <babeltrace/babeltrace-internal.h> |
46322b33 MD |
26 | #include <babeltrace/format.h> |
27 | #include <babeltrace/ctf/types.h> | |
28 | #include <babeltrace/ctf/metadata.h> | |
29 | #include <babeltrace/ctf-text/types.h> | |
0d0f5149 | 30 | #include <babeltrace/prio_heap.h> |
70bd0a12 JD |
31 | #include <babeltrace/babeltrace.h> |
32 | #include <babeltrace/types.h> | |
33 | #include <babeltrace/ctf/types.h> | |
34 | #include <babeltrace/ctf-ir/metadata.h> | |
c34ccddd | 35 | #include <stdarg.h> |
70bd0a12 | 36 | |
063f7048 MD |
37 | struct stream_saved_pos { |
38 | /* | |
39 | * Use file_stream pointer to check if the trace collection we | |
40 | * restore to match the one we saved from, for each stream. | |
41 | */ | |
42 | struct ctf_file_stream *file_stream; | |
43 | size_t cur_index; /* current index in packet index */ | |
44 | ssize_t offset; /* offset from base, in bits. EOF for end of file. */ | |
45 | }; | |
46 | ||
47 | struct babeltrace_saved_pos { | |
48 | struct trace_collection *tc; | |
49 | GArray *stream_saved_pos; /* Contains struct stream_saved_pos */ | |
50 | }; | |
51 | ||
c34ccddd MD |
52 | struct bt_callback { |
53 | int prio; /* Callback order priority. Lower first. Dynamically assigned from dependency graph. */ | |
54 | void *private_data; | |
8ee2fac4 JD |
55 | int flags; |
56 | struct bt_dependencies *depends; | |
57 | struct bt_dependencies *weak_depends; | |
58 | struct bt_dependencies *provides; | |
c34ccddd MD |
59 | enum bt_cb_ret (*callback)(void *private_data, void *caller_data); |
60 | }; | |
61 | ||
62 | struct bt_callback_chain { | |
63 | GArray *callback; /* Array of struct bt_callback, ordered by priority */ | |
64 | }; | |
65 | ||
66 | /* | |
67 | * per id callbacks need to be per stream class because event ID vs | |
68 | * event name mapping can vary from stream to stream. | |
69 | */ | |
70 | struct bt_stream_callbacks { | |
71 | GArray *per_id_callbacks; /* Array of struct bt_callback_chain */ | |
72 | }; | |
73 | ||
70bd0a12 JD |
74 | /* |
75 | * struct babeltrace_iter: data structure representing an iterator on a trace | |
76 | * collection. | |
77 | */ | |
78 | struct babeltrace_iter { | |
79 | struct ptr_heap *stream_heap; | |
80 | struct trace_collection *tc; | |
063f7048 | 81 | struct trace_collection_pos *end_pos; |
8ee2fac4 | 82 | GArray *callbacks; /* Array of struct bt_stream_callbacks */ |
c34ccddd MD |
83 | struct bt_callback_chain main_callbacks; /* For all events */ |
84 | /* | |
85 | * Flag indicating if dependency graph needs to be recalculated. | |
86 | * Set by babeltrace_iter_add_callback(), and checked (and | |
87 | * cleared) by upon entry into babeltrace_iter_read_event(). | |
88 | * babeltrace_iter_read_event() is responsible for calling dep | |
89 | * graph calculation if it sees this flag set. | |
90 | */ | |
91 | int recalculate_dep_graph; | |
92 | /* | |
93 | * Array of pointers to struct bt_dependencies, for garbage | |
94 | * collection. We're not using a linked list here because each | |
95 | * struct bt_dependencies can belong to more than one | |
96 | * babeltrace_iter. | |
97 | */ | |
98 | GPtrArray *dep_gc; | |
70bd0a12 JD |
99 | }; |
100 | ||
c34ccddd MD |
101 | struct bt_dependencies { |
102 | GArray *deps; /* Array of GQuarks */ | |
103 | int refcount; /* free when decremented to 0 */ | |
104 | }; | |
105 | ||
106 | static | |
107 | struct bt_dependencies *_babeltrace_dependencies_create(const char *first, | |
108 | va_list ap) | |
109 | { | |
110 | const char *iter; | |
111 | struct bt_dependencies *dep; | |
112 | ||
113 | dep = g_new0(struct bt_dependencies, 1); | |
114 | dep->refcount = 1; | |
115 | dep->deps = g_array_new(FALSE, TRUE, sizeof(GQuark)); | |
116 | iter = first; | |
117 | while (iter) { | |
118 | GQuark q = g_quark_from_string(iter); | |
119 | g_array_append_val(dep->deps, q); | |
120 | iter = va_arg(ap, const char *); | |
121 | } | |
122 | return dep; | |
123 | } | |
124 | ||
125 | struct bt_dependencies *babeltrace_dependencies_create(const char *first, ...) | |
126 | { | |
127 | va_list ap; | |
128 | struct bt_dependencies *deps; | |
129 | ||
130 | va_start(ap, first); | |
131 | deps = _babeltrace_dependencies_create(first, ap); | |
132 | va_end(ap); | |
133 | return deps; | |
134 | } | |
135 | ||
8ee2fac4 JD |
136 | /* |
137 | * babeltrace_iter_add_callback: Add a callback to iterator. | |
138 | */ | |
139 | int babeltrace_iter_add_callback(struct babeltrace_iter *iter, | |
140 | bt_event_name event, void *private_data, int flags, | |
141 | enum bt_cb_ret (*callback)(void *private_data, void *caller_data), | |
142 | struct bt_dependencies *depends, | |
143 | struct bt_dependencies *weak_depends, | |
144 | struct bt_dependencies *provides) | |
145 | { | |
146 | int i, stream_id; | |
147 | gpointer *event_id_ptr; | |
148 | unsigned long event_id; | |
149 | struct trace_collection *tc = iter->tc; | |
150 | ||
151 | for (i = 0; i < tc->array->len; i++) { | |
152 | struct ctf_trace *tin; | |
153 | struct trace_descriptor *td_read; | |
154 | ||
155 | td_read = g_ptr_array_index(tc->array, i); | |
156 | tin = container_of(td_read, struct ctf_trace, parent); | |
157 | ||
158 | for (stream_id = 0; stream_id < tin->streams->len; stream_id++) { | |
159 | struct ctf_stream_class *stream; | |
160 | struct bt_stream_callbacks *bt_stream_cb = NULL; | |
161 | struct bt_callback_chain *bt_chain = NULL; | |
162 | struct bt_callback new_callback; | |
163 | ||
164 | stream = g_ptr_array_index(tin->streams, stream_id); | |
165 | ||
166 | /* find or create the bt_stream_callbacks for this stream */ | |
167 | if (iter->callbacks->len >= stream_id) { | |
168 | bt_stream_cb = &g_array_index(iter->callbacks, | |
169 | struct bt_stream_callbacks, stream->stream_id); | |
170 | } else { | |
171 | g_array_set_size(iter->callbacks, stream->stream_id); | |
172 | } | |
173 | if (!bt_stream_cb || !bt_stream_cb->per_id_callbacks) { | |
174 | struct bt_stream_callbacks new_stream_cb; | |
175 | new_stream_cb.per_id_callbacks = g_array_new(1, 1, | |
176 | sizeof(struct bt_callback_chain)); | |
177 | g_array_insert_val(iter->callbacks, stream->stream_id, new_stream_cb); | |
178 | bt_stream_cb = &g_array_index(iter->callbacks, | |
179 | struct bt_stream_callbacks, stream->stream_id); | |
180 | } | |
181 | ||
182 | if (event) { | |
183 | /* find the event id */ | |
184 | event_id_ptr = g_hash_table_lookup(stream->event_quark_to_id, | |
185 | (gconstpointer) (unsigned long) event); | |
186 | /* event not found in this stream class */ | |
187 | if (!event_id_ptr) { | |
188 | printf("event not found\n"); | |
189 | continue; | |
190 | } | |
191 | event_id = (uint64_t)*event_id_ptr; | |
192 | ||
193 | /* find or create the bt_callback_chain for this event */ | |
194 | if (bt_stream_cb->per_id_callbacks->len >= event_id) { | |
195 | bt_chain = &g_array_index(bt_stream_cb->per_id_callbacks, | |
196 | struct bt_callback_chain, event_id); | |
197 | } else { | |
198 | g_array_set_size(bt_stream_cb->per_id_callbacks, event_id); | |
199 | } | |
200 | if (!bt_chain || !bt_chain->callback) { | |
201 | struct bt_callback_chain new_chain; | |
202 | new_chain.callback = g_array_new(1, 1, sizeof(struct bt_callback)); | |
203 | g_array_insert_val(bt_stream_cb->per_id_callbacks, event_id, | |
204 | new_chain); | |
205 | bt_chain = &g_array_index(bt_stream_cb->per_id_callbacks, | |
206 | struct bt_callback_chain, event_id); | |
207 | } | |
208 | } else { | |
209 | /* callback for all events */ | |
210 | if (!iter->main_callbacks.callback) { | |
211 | iter->main_callbacks.callback = g_array_new(1, 1, | |
212 | sizeof(struct bt_callback)); | |
213 | } | |
214 | bt_chain = &iter->main_callbacks; | |
215 | } | |
216 | ||
217 | new_callback.private_data = private_data; | |
218 | new_callback.flags = flags; | |
219 | new_callback.callback = callback; | |
220 | new_callback.depends = depends; | |
221 | new_callback.weak_depends = weak_depends; | |
222 | new_callback.provides = provides; | |
223 | ||
224 | /* TODO : take care of priority, for now just FIFO */ | |
225 | g_array_append_val(bt_chain->callback, new_callback); | |
226 | } | |
227 | } | |
228 | ||
229 | return 0; | |
230 | } | |
231 | ||
9e501292 | 232 | static int stream_read_event(struct ctf_file_stream *sin) |
46322b33 MD |
233 | { |
234 | int ret; | |
235 | ||
2d0bea29 | 236 | ret = sin->pos.parent.event_cb(&sin->pos.parent, &sin->parent); |
0d0f5149 MD |
237 | if (ret == EOF) |
238 | return EOF; | |
239 | else if (ret) { | |
240 | fprintf(stdout, "[error] Reading event failed.\n"); | |
241 | return ret; | |
46322b33 | 242 | } |
46322b33 | 243 | return 0; |
0d0f5149 | 244 | } |
46322b33 | 245 | |
0d0f5149 MD |
246 | /* |
247 | * returns true if a < b, false otherwise. | |
248 | */ | |
249 | int stream_compare(void *a, void *b) | |
250 | { | |
251 | struct ctf_file_stream *s_a = a, *s_b = b; | |
252 | ||
2d0bea29 | 253 | if (s_a->parent.timestamp < s_b->parent.timestamp) |
0d0f5149 MD |
254 | return 1; |
255 | else | |
256 | return 0; | |
46322b33 MD |
257 | } |
258 | ||
877fb419 JD |
259 | /* |
260 | * babeltrace_filestream_seek: seek a filestream to given position. | |
261 | * | |
262 | * The stream_id parameter is only useful for BT_SEEK_RESTORE. | |
263 | */ | |
264 | static int babeltrace_filestream_seek(struct ctf_file_stream *file_stream, | |
265 | const struct trace_collection_pos *begin_pos, | |
266 | unsigned long stream_id) | |
267 | { | |
268 | int ret = 0; | |
269 | ||
270 | switch (begin_pos->type) { | |
271 | case BT_SEEK_CUR: | |
272 | /* | |
273 | * just insert into the heap we should already know | |
274 | * the timestamps | |
275 | */ | |
276 | break; | |
277 | case BT_SEEK_BEGIN: | |
278 | ctf_move_pos_slow(&file_stream->pos, 0, SEEK_SET); | |
279 | ret = stream_read_event(file_stream); | |
280 | break; | |
281 | case BT_SEEK_TIME: | |
282 | case BT_SEEK_RESTORE: | |
283 | case BT_SEEK_END: | |
284 | default: | |
285 | assert(0); /* Not yet defined */ | |
286 | } | |
287 | ||
288 | return ret; | |
289 | } | |
290 | ||
291 | /* | |
292 | * babeltrace_iter_seek: seek iterator to given position. | |
293 | */ | |
294 | int babeltrace_iter_seek(struct babeltrace_iter *iter, | |
295 | const struct trace_collection_pos *begin_pos) | |
296 | { | |
297 | int i, stream_id; | |
298 | int ret = 0; | |
299 | struct trace_collection *tc = iter->tc; | |
300 | ||
301 | for (i = 0; i < tc->array->len; i++) { | |
302 | struct ctf_trace *tin; | |
303 | struct trace_descriptor *td_read; | |
304 | ||
305 | td_read = g_ptr_array_index(tc->array, i); | |
306 | tin = container_of(td_read, struct ctf_trace, parent); | |
307 | ||
308 | /* Populate heap with each stream */ | |
309 | for (stream_id = 0; stream_id < tin->streams->len; | |
310 | stream_id++) { | |
311 | struct ctf_stream_class *stream; | |
312 | int filenr; | |
313 | ||
314 | stream = g_ptr_array_index(tin->streams, stream_id); | |
315 | for (filenr = 0; filenr < stream->streams->len; | |
316 | filenr++) { | |
317 | struct ctf_file_stream *file_stream; | |
318 | ||
319 | file_stream = g_ptr_array_index(stream->streams, | |
320 | filenr); | |
321 | ret = babeltrace_filestream_seek(file_stream, begin_pos, | |
322 | stream_id); | |
323 | if (ret < 0) | |
324 | goto end; | |
325 | } | |
326 | } | |
327 | } | |
328 | end: | |
329 | return ret; | |
330 | } | |
331 | ||
063f7048 MD |
332 | struct babeltrace_iter *babeltrace_iter_create(struct trace_collection *tc, |
333 | struct trace_collection_pos *begin_pos, | |
334 | struct trace_collection_pos *end_pos) | |
46322b33 | 335 | { |
afb48eae | 336 | int i, stream_id; |
0d0f5149 | 337 | int ret = 0; |
9e501292 | 338 | struct babeltrace_iter *iter; |
0d0f5149 | 339 | |
9e501292 JD |
340 | iter = malloc(sizeof(struct babeltrace_iter)); |
341 | if (!iter) | |
342 | goto error_malloc; | |
343 | iter->stream_heap = g_new(struct ptr_heap, 1); | |
344 | iter->tc = tc; | |
877fb419 | 345 | iter->end_pos = end_pos; |
8ee2fac4 JD |
346 | iter->callbacks = g_array_new(0, 1, sizeof(struct bt_stream_callbacks)); |
347 | iter->recalculate_dep_graph = 0; | |
348 | iter->main_callbacks.callback = NULL; | |
349 | iter->dep_gc = g_ptr_array_new(); | |
9e501292 JD |
350 | |
351 | ret = heap_init(iter->stream_heap, 0, stream_compare); | |
352 | if (ret < 0) | |
353 | goto error_heap_init; | |
46322b33 | 354 | |
9e501292 | 355 | for (i = 0; i < tc->array->len; i++) { |
afb48eae AA |
356 | struct ctf_trace *tin; |
357 | struct trace_descriptor *td_read; | |
46322b33 | 358 | |
9e501292 | 359 | td_read = g_ptr_array_index(tc->array, i); |
afb48eae AA |
360 | tin = container_of(td_read, struct ctf_trace, parent); |
361 | ||
362 | /* Populate heap with each stream */ | |
363 | for (stream_id = 0; stream_id < tin->streams->len; | |
364 | stream_id++) { | |
365 | struct ctf_stream_class *stream; | |
366 | int filenr; | |
367 | ||
368 | stream = g_ptr_array_index(tin->streams, stream_id); | |
369 | if (!stream) | |
0d0f5149 | 370 | continue; |
afb48eae AA |
371 | for (filenr = 0; filenr < stream->streams->len; |
372 | filenr++) { | |
373 | struct ctf_file_stream *file_stream; | |
374 | ||
375 | file_stream = g_ptr_array_index(stream->streams, | |
376 | filenr); | |
377 | ||
877fb419 JD |
378 | if (begin_pos) { |
379 | ret = babeltrace_filestream_seek(file_stream, begin_pos, | |
380 | stream_id); | |
381 | if (ret == EOF) { | |
382 | ret = 0; | |
383 | continue; | |
384 | } else if (ret) { | |
385 | goto error; | |
386 | } | |
afb48eae AA |
387 | } |
388 | /* Add to heap */ | |
9e501292 JD |
389 | ret = heap_insert(iter->stream_heap, file_stream); |
390 | if (ret) | |
391 | goto error; | |
46322b33 MD |
392 | } |
393 | } | |
394 | } | |
395 | ||
9e501292 | 396 | return iter; |
0d0f5149 | 397 | |
9e501292 JD |
398 | error: |
399 | heap_free(iter->stream_heap); | |
400 | error_heap_init: | |
401 | g_free(iter->stream_heap); | |
402 | free(iter); | |
403 | error_malloc: | |
404 | return NULL; | |
405 | } | |
406 | ||
407 | void babeltrace_iter_destroy(struct babeltrace_iter *iter) | |
408 | { | |
ee126a93 JD |
409 | struct bt_stream_callbacks *bt_stream_cb; |
410 | struct bt_callback_chain *bt_chain; | |
411 | int i, j; | |
412 | ||
9e501292 JD |
413 | heap_free(iter->stream_heap); |
414 | g_free(iter->stream_heap); | |
ee126a93 JD |
415 | |
416 | /* free all events callbacks */ | |
417 | if (iter->main_callbacks.callback) | |
418 | g_array_free(iter->main_callbacks.callback, TRUE); | |
419 | ||
420 | /* free per-event callbacks */ | |
421 | for (i = 0; i < iter->callbacks->len; i++) { | |
422 | bt_stream_cb = &g_array_index(iter->callbacks, | |
423 | struct bt_stream_callbacks, i); | |
424 | if (!bt_stream_cb || !bt_stream_cb->per_id_callbacks) | |
425 | continue; | |
426 | for (j = 0; j < bt_stream_cb->per_id_callbacks->len; j++) { | |
427 | bt_chain = &g_array_index(bt_stream_cb->per_id_callbacks, | |
428 | struct bt_callback_chain, j); | |
429 | g_array_free(bt_chain->callback, TRUE); | |
430 | } | |
431 | g_array_free(bt_stream_cb->per_id_callbacks, TRUE); | |
432 | } | |
433 | ||
9e501292 JD |
434 | free(iter); |
435 | } | |
436 | ||
437 | int babeltrace_iter_next(struct babeltrace_iter *iter) | |
438 | { | |
439 | struct ctf_file_stream *file_stream, *removed; | |
440 | int ret; | |
441 | ||
442 | file_stream = heap_maximum(iter->stream_heap); | |
443 | if (!file_stream) { | |
444 | /* end of file for all streams */ | |
445 | ret = 0; | |
446 | goto end; | |
447 | } | |
448 | ||
449 | ret = stream_read_event(file_stream); | |
450 | if (ret == EOF) { | |
451 | removed = heap_remove(iter->stream_heap); | |
452 | assert(removed == file_stream); | |
453 | ret = 0; | |
454 | goto end; | |
455 | } else if (ret) { | |
456 | goto end; | |
457 | } | |
458 | /* Reinsert the file stream into the heap, and rebalance. */ | |
459 | removed = heap_replace_max(iter->stream_heap, file_stream); | |
460 | assert(removed == file_stream); | |
461 | ||
462 | end: | |
463 | return ret; | |
464 | } | |
465 | ||
8ee2fac4 JD |
466 | static |
467 | void process_callbacks(struct babeltrace_iter *iter, | |
468 | struct ctf_stream *stream) | |
469 | { | |
470 | struct bt_stream_callbacks *bt_stream_cb; | |
471 | struct bt_callback_chain *bt_chain; | |
472 | struct bt_callback *cb; | |
473 | int i; | |
474 | enum bt_cb_ret ret; | |
475 | ||
476 | /* process all events callback first */ | |
477 | if (iter->main_callbacks.callback) { | |
478 | for (i = 0; i < iter->main_callbacks.callback->len; i++) { | |
479 | cb = &g_array_index(iter->main_callbacks.callback, struct bt_callback, i); | |
480 | if (!cb) | |
481 | goto end; | |
482 | ret = cb->callback(NULL, NULL); | |
483 | switch (ret) { | |
484 | case BT_CB_OK_STOP: | |
485 | case BT_CB_ERROR_STOP: | |
486 | goto end; | |
487 | default: | |
488 | break; | |
489 | } | |
490 | } | |
491 | } | |
492 | ||
493 | /* process per event callbacks */ | |
494 | bt_stream_cb = &g_array_index(iter->callbacks, | |
495 | struct bt_stream_callbacks, stream->stream_id); | |
496 | if (!bt_stream_cb || !bt_stream_cb->per_id_callbacks) | |
497 | goto end; | |
498 | ||
499 | if (stream->event_id > bt_stream_cb->per_id_callbacks->len) | |
500 | goto end; | |
501 | bt_chain = &g_array_index(bt_stream_cb->per_id_callbacks, | |
502 | struct bt_callback_chain, stream->event_id); | |
503 | if (!bt_chain || !bt_chain->callback) | |
504 | goto end; | |
505 | ||
506 | for (i = 0; i < bt_chain->callback->len; i++) { | |
507 | cb = &g_array_index(bt_chain->callback, struct bt_callback, i); | |
508 | if (!cb) | |
509 | goto end; | |
510 | ret = cb->callback(NULL, NULL); | |
511 | switch (ret) { | |
512 | case BT_CB_OK_STOP: | |
513 | case BT_CB_ERROR_STOP: | |
514 | goto end; | |
515 | default: | |
516 | break; | |
517 | } | |
518 | } | |
519 | ||
520 | end: | |
521 | return; | |
522 | } | |
523 | ||
9e501292 JD |
524 | int babeltrace_iter_read_event(struct babeltrace_iter *iter, |
525 | struct ctf_stream **stream, | |
526 | struct ctf_stream_event **event) | |
527 | { | |
528 | struct ctf_file_stream *file_stream; | |
529 | int ret = 0; | |
530 | ||
531 | file_stream = heap_maximum(iter->stream_heap); | |
532 | if (!file_stream) { | |
533 | /* end of file for all streams */ | |
534 | ret = EOF; | |
535 | goto end; | |
536 | } | |
537 | *stream = &file_stream->parent; | |
538 | *event = g_ptr_array_index((*stream)->events_by_id, (*stream)->event_id); | |
8ee2fac4 JD |
539 | |
540 | if ((*stream)->stream_id > iter->callbacks->len) | |
541 | goto end; | |
542 | ||
543 | process_callbacks(iter, *stream); | |
544 | ||
9e501292 JD |
545 | end: |
546 | return ret; | |
547 | } | |
548 | ||
549 | int convert_trace(struct trace_descriptor *td_write, | |
550 | struct trace_collection *trace_collection_read) | |
551 | { | |
552 | struct babeltrace_iter *iter; | |
553 | struct ctf_stream *stream; | |
554 | struct ctf_stream_event *event; | |
555 | struct ctf_text_stream_pos *sout; | |
877fb419 | 556 | struct trace_collection_pos begin_pos; |
9e501292 JD |
557 | int ret = 0; |
558 | ||
559 | sout = container_of(td_write, struct ctf_text_stream_pos, | |
560 | trace_descriptor); | |
561 | ||
877fb419 JD |
562 | begin_pos.type = BT_SEEK_BEGIN; |
563 | iter = babeltrace_iter_create(trace_collection_read, &begin_pos, NULL); | |
9e501292 JD |
564 | while (babeltrace_iter_read_event(iter, &stream, &event) == 0) { |
565 | ret = sout->parent.event_cb(&sout->parent, stream); | |
0d0f5149 MD |
566 | if (ret) { |
567 | fprintf(stdout, "[error] Writing event failed.\n"); | |
568 | goto end; | |
569 | } | |
9e501292 JD |
570 | ret = babeltrace_iter_next(iter); |
571 | if (ret < 0) | |
0d0f5149 | 572 | goto end; |
0d0f5149 | 573 | } |
0d0f5149 | 574 | end: |
9e501292 | 575 | babeltrace_iter_destroy(iter); |
46322b33 MD |
576 | return ret; |
577 | } |