Commit | Line | Data |
---|---|---|
273b65be JG |
1 | /* |
2 | * stream.c | |
3 | * | |
d2dc44b6 | 4 | * Babeltrace CTF IR - Stream |
273b65be | 5 | * |
de9dd397 | 6 | * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
273b65be JG |
7 | * |
8 | * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
9 | * | |
10 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
11 | * of this software and associated documentation files (the "Software"), to deal | |
12 | * in the Software without restriction, including without limitation the rights | |
13 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
14 | * copies of the Software, and to permit persons to whom the Software is | |
15 | * furnished to do so, subject to the following conditions: | |
16 | * | |
17 | * The above copyright notice and this permission notice shall be included in | |
18 | * all copies or substantial portions of the Software. | |
19 | * | |
20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
21 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
23 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
24 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
25 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
26 | * SOFTWARE. | |
27 | */ | |
28 | ||
3f043b05 | 29 | #include <babeltrace/ctf-ir/clock.h> |
adc315b8 | 30 | #include <babeltrace/ctf-ir/clock-internal.h> |
273b65be | 31 | #include <babeltrace/ctf-writer/event.h> |
adc315b8 | 32 | #include <babeltrace/ctf-ir/event-internal.h> |
2e33ac5a PP |
33 | #include <babeltrace/ctf-ir/field-types-internal.h> |
34 | #include <babeltrace/ctf-ir/fields-internal.h> | |
3f043b05 JG |
35 | #include <babeltrace/ctf-ir/stream.h> |
36 | #include <babeltrace/ctf-ir/stream-internal.h> | |
adc315b8 | 37 | #include <babeltrace/ctf-ir/stream-class-internal.h> |
83509119 | 38 | #include <babeltrace/ref.h> |
273b65be JG |
39 | #include <babeltrace/ctf-writer/functor-internal.h> |
40 | #include <babeltrace/compiler.h> | |
41 | #include <babeltrace/align.h> | |
d246b111 | 42 | #include <babeltrace/ctf/ctf-index.h> |
273b65be JG |
43 | |
44 | static | |
83509119 | 45 | void bt_ctf_stream_destroy(struct bt_object *obj); |
273b65be | 46 | static |
273b65be JG |
47 | int set_structure_field_integer(struct bt_ctf_field *, char *, uint64_t); |
48 | ||
d246b111 JG |
49 | static |
50 | int set_packet_header_magic(struct bt_ctf_stream *stream) | |
51 | { | |
52 | int ret = 0; | |
53 | struct bt_ctf_field_type *magic_field_type = NULL; | |
54 | struct bt_ctf_field *magic_field = bt_ctf_field_structure_get_field( | |
55 | stream->packet_header, "magic"); | |
56 | ||
57 | if (!magic_field) { | |
58 | /* No magic field found. Not an error, skip. */ | |
59 | goto end; | |
60 | } | |
61 | ||
62 | if (!bt_ctf_field_validate(magic_field)) { | |
63 | /* Value already set. Not an error, skip. */ | |
64 | goto end; | |
65 | } | |
66 | ||
67 | magic_field_type = bt_ctf_field_get_type(magic_field); | |
68 | assert(magic_field_type); | |
69 | ||
70 | if (bt_ctf_field_type_get_type_id(magic_field_type) != | |
9a19a512 | 71 | BT_CTF_TYPE_ID_INTEGER) { |
d246b111 JG |
72 | /* Magic field is not an integer. Not an error, skip. */ |
73 | goto end; | |
74 | } | |
75 | ||
76 | if (bt_ctf_field_type_integer_get_size(magic_field_type) != 32) { | |
77 | /* | |
78 | * Magic field is not of the expected size. | |
79 | * Not an error, skip. | |
80 | */ | |
81 | goto end; | |
82 | } | |
83 | ||
84 | ret = bt_ctf_field_type_integer_get_signed(magic_field_type); | |
85 | assert(ret >= 0); | |
86 | if (ret) { | |
87 | ret = bt_ctf_field_signed_integer_set_value(magic_field, | |
88 | (int64_t) 0xC1FC1FC1); | |
89 | } else { | |
90 | ret = bt_ctf_field_unsigned_integer_set_value(magic_field, | |
91 | (uint64_t) 0xC1FC1FC1); | |
92 | } | |
93 | end: | |
83509119 JG |
94 | bt_put(magic_field); |
95 | bt_put(magic_field_type); | |
d246b111 JG |
96 | return ret; |
97 | } | |
98 | ||
99 | static | |
100 | int set_packet_header_uuid(struct bt_ctf_stream *stream) | |
101 | { | |
102 | int i, ret = 0; | |
e6a8e8e4 | 103 | struct bt_ctf_trace *trace = NULL; |
d246b111 JG |
104 | struct bt_ctf_field_type *uuid_field_type = NULL; |
105 | struct bt_ctf_field_type *element_field_type = NULL; | |
106 | struct bt_ctf_field *uuid_field = bt_ctf_field_structure_get_field( | |
107 | stream->packet_header, "uuid"); | |
108 | ||
109 | if (!uuid_field) { | |
110 | /* No uuid field found. Not an error, skip. */ | |
111 | goto end; | |
112 | } | |
113 | ||
114 | if (!bt_ctf_field_validate(uuid_field)) { | |
115 | /* Value already set. Not an error, skip. */ | |
116 | goto end; | |
117 | } | |
118 | ||
119 | uuid_field_type = bt_ctf_field_get_type(uuid_field); | |
120 | assert(uuid_field_type); | |
121 | if (bt_ctf_field_type_get_type_id(uuid_field_type) != | |
9a19a512 | 122 | BT_CTF_TYPE_ID_ARRAY) { |
d246b111 JG |
123 | /* UUID field is not an array. Not an error, skip. */ |
124 | goto end; | |
125 | } | |
126 | ||
127 | if (bt_ctf_field_type_array_get_length(uuid_field_type) != 16) { | |
128 | /* | |
129 | * UUID field is not of the expected size. | |
130 | * Not an error, skip. | |
131 | */ | |
132 | goto end; | |
133 | } | |
134 | ||
135 | element_field_type = bt_ctf_field_type_array_get_element_type( | |
136 | uuid_field_type); | |
137 | assert(element_field_type); | |
138 | if (bt_ctf_field_type_get_type_id(element_field_type) != | |
9a19a512 | 139 | BT_CTF_TYPE_ID_INTEGER) { |
d246b111 JG |
140 | /* UUID array elements are not integers. Not an error, skip */ |
141 | goto end; | |
142 | } | |
143 | ||
e6a8e8e4 | 144 | trace = (struct bt_ctf_trace *) bt_object_get_parent(stream); |
d246b111 JG |
145 | for (i = 0; i < 16; i++) { |
146 | struct bt_ctf_field *uuid_element = | |
147 | bt_ctf_field_array_get_field(uuid_field, i); | |
148 | ||
149 | ret = bt_ctf_field_type_integer_get_signed(element_field_type); | |
150 | assert(ret >= 0); | |
151 | ||
152 | if (ret) { | |
153 | ret = bt_ctf_field_signed_integer_set_value( | |
e6a8e8e4 | 154 | uuid_element, (int64_t) trace->uuid[i]); |
d246b111 JG |
155 | } else { |
156 | ret = bt_ctf_field_unsigned_integer_set_value( | |
157 | uuid_element, | |
e6a8e8e4 | 158 | (uint64_t) trace->uuid[i]); |
d246b111 | 159 | } |
83509119 | 160 | bt_put(uuid_element); |
d246b111 JG |
161 | if (ret) { |
162 | goto end; | |
163 | } | |
164 | } | |
165 | ||
166 | end: | |
83509119 JG |
167 | bt_put(uuid_field); |
168 | bt_put(uuid_field_type); | |
169 | bt_put(element_field_type); | |
e6a8e8e4 | 170 | BT_PUT(trace); |
d246b111 JG |
171 | return ret; |
172 | } | |
173 | static | |
174 | int set_packet_header_stream_id(struct bt_ctf_stream *stream) | |
175 | { | |
176 | int ret = 0; | |
177 | uint32_t stream_id; | |
178 | struct bt_ctf_field_type *stream_id_field_type = NULL; | |
179 | struct bt_ctf_field *stream_id_field = bt_ctf_field_structure_get_field( | |
180 | stream->packet_header, "stream_id"); | |
181 | ||
182 | if (!stream_id_field) { | |
183 | /* No stream_id field found. Not an error, skip. */ | |
184 | goto end; | |
185 | } | |
186 | ||
187 | if (!bt_ctf_field_validate(stream_id_field)) { | |
188 | /* Value already set. Not an error, skip. */ | |
189 | goto end; | |
190 | } | |
191 | ||
192 | stream_id_field_type = bt_ctf_field_get_type(stream_id_field); | |
193 | assert(stream_id_field_type); | |
194 | if (bt_ctf_field_type_get_type_id(stream_id_field_type) != | |
9a19a512 | 195 | BT_CTF_TYPE_ID_INTEGER) { |
d246b111 JG |
196 | /* stream_id field is not an integer. Not an error, skip. */ |
197 | goto end; | |
198 | } | |
199 | ||
200 | stream_id = stream->stream_class->id; | |
201 | ret = bt_ctf_field_type_integer_get_signed(stream_id_field_type); | |
202 | assert(ret >= 0); | |
203 | if (ret) { | |
204 | ret = bt_ctf_field_signed_integer_set_value(stream_id_field, | |
205 | (int64_t) stream_id); | |
206 | } else { | |
207 | ret = bt_ctf_field_unsigned_integer_set_value(stream_id_field, | |
208 | (uint64_t) stream_id); | |
209 | } | |
210 | end: | |
83509119 JG |
211 | bt_put(stream_id_field); |
212 | bt_put(stream_id_field_type); | |
d246b111 JG |
213 | return ret; |
214 | } | |
215 | ||
216 | static | |
217 | int set_packet_header(struct bt_ctf_stream *stream) | |
218 | { | |
219 | int ret; | |
220 | ||
221 | ret = set_packet_header_magic(stream); | |
222 | if (ret) { | |
223 | goto end; | |
224 | } | |
225 | ||
226 | ret = set_packet_header_uuid(stream); | |
227 | if (ret) { | |
228 | goto end; | |
229 | } | |
230 | ||
231 | ret = set_packet_header_stream_id(stream); | |
232 | if (ret) { | |
233 | goto end; | |
234 | } | |
235 | end: | |
236 | return ret; | |
237 | } | |
238 | ||
123fbdec | 239 | static |
e6a8e8e4 | 240 | void release_event(struct bt_ctf_event *event) |
123fbdec | 241 | { |
e6a8e8e4 JG |
242 | if (bt_object_get_ref_count(event)) { |
243 | /* | |
244 | * The event is being orphaned, but it must guarantee the | |
245 | * existence of its event class for the duration of its | |
246 | * lifetime. | |
247 | */ | |
248 | bt_get(event->event_class); | |
249 | BT_PUT(event->base.parent); | |
250 | } else { | |
251 | bt_object_release(event); | |
252 | } | |
123fbdec JG |
253 | } |
254 | ||
273b65be JG |
255 | BT_HIDDEN |
256 | struct bt_ctf_stream *bt_ctf_stream_create( | |
d246b111 JG |
257 | struct bt_ctf_stream_class *stream_class, |
258 | struct bt_ctf_trace *trace) | |
273b65be | 259 | { |
12c8a1a3 | 260 | int ret; |
273b65be JG |
261 | struct bt_ctf_stream *stream = NULL; |
262 | ||
d246b111 | 263 | if (!stream_class || !trace) { |
273b65be JG |
264 | goto end; |
265 | } | |
266 | ||
267 | stream = g_new0(struct bt_ctf_stream, 1); | |
268 | if (!stream) { | |
269 | goto end; | |
270 | } | |
271 | ||
83509119 | 272 | bt_object_init(stream, bt_ctf_stream_destroy); |
e6a8e8e4 JG |
273 | /* |
274 | * Acquire reference to parent since stream will become publicly | |
275 | * reachable; it needs its parent to remain valid. | |
276 | */ | |
277 | bt_object_set_parent(stream, trace); | |
12c8a1a3 JG |
278 | stream->packet_context = bt_ctf_field_create( |
279 | stream_class->packet_context_type); | |
280 | if (!stream->packet_context) { | |
83509119 | 281 | goto error; |
12c8a1a3 JG |
282 | } |
283 | ||
e19cc57d | 284 | /* Initialize events_discarded */ |
12c8a1a3 JG |
285 | ret = set_structure_field_integer(stream->packet_context, |
286 | "events_discarded", 0); | |
287 | if (ret) { | |
83509119 | 288 | goto error; |
12c8a1a3 JG |
289 | } |
290 | ||
273b65be JG |
291 | stream->pos.fd = -1; |
292 | stream->id = stream_class->next_stream_id++; | |
293 | stream->stream_class = stream_class; | |
273b65be | 294 | stream->events = g_ptr_array_new_with_free_func( |
e6a8e8e4 | 295 | (GDestroyNotify) release_event); |
8bfa3f9c | 296 | if (!stream->events) { |
83509119 | 297 | goto error; |
8bfa3f9c | 298 | } |
d246b111 JG |
299 | |
300 | /* A trace is not allowed to have a NULL packet header */ | |
301 | assert(trace->packet_header_type); | |
302 | stream->packet_header = bt_ctf_field_create(trace->packet_header_type); | |
92351460 | 303 | if (!stream->packet_header) { |
83509119 | 304 | goto error; |
92351460 | 305 | } |
d246b111 JG |
306 | /* |
307 | * Attempt to populate the default trace packet header fields | |
308 | * (magic, uuid and stream_id). This will _not_ fail shall the | |
309 | * fields not be found or be of an incompatible type; they will | |
310 | * simply not be populated automatically. The user will have to | |
311 | * make sure to set the trace packet header fields himself before | |
312 | * flushing. | |
313 | */ | |
314 | ret = set_packet_header(stream); | |
315 | if (ret) { | |
83509119 | 316 | goto error; |
d246b111 | 317 | } |
273b65be JG |
318 | end: |
319 | return stream; | |
83509119 JG |
320 | error: |
321 | BT_PUT(stream); | |
e6a8e8e4 | 322 | bt_put(trace); |
83509119 | 323 | return stream; |
273b65be JG |
324 | } |
325 | ||
273b65be JG |
326 | BT_HIDDEN |
327 | int bt_ctf_stream_set_fd(struct bt_ctf_stream *stream, int fd) | |
328 | { | |
329 | int ret = 0; | |
330 | ||
331 | if (stream->pos.fd != -1) { | |
332 | ret = -1; | |
333 | goto end; | |
334 | } | |
335 | ||
336 | ctf_init_pos(&stream->pos, NULL, fd, O_RDWR); | |
337 | stream->pos.fd = fd; | |
338 | end: | |
339 | return ret; | |
340 | } | |
341 | ||
3baf0856 JG |
342 | struct bt_ctf_stream_class *bt_ctf_stream_get_class( |
343 | struct bt_ctf_stream *stream) | |
344 | { | |
345 | struct bt_ctf_stream_class *stream_class = NULL; | |
346 | ||
347 | if (!stream) { | |
348 | goto end; | |
349 | } | |
350 | ||
351 | stream_class = stream->stream_class; | |
83509119 | 352 | bt_get(stream_class); |
3baf0856 JG |
353 | end: |
354 | return stream_class; | |
355 | } | |
356 | ||
a78a2e25 JG |
357 | int bt_ctf_stream_get_discarded_events_count( |
358 | struct bt_ctf_stream *stream, uint64_t *count) | |
359 | { | |
360 | int64_t ret = 0; | |
12c8a1a3 JG |
361 | int field_signed; |
362 | struct bt_ctf_field *events_discarded_field = NULL; | |
363 | struct bt_ctf_field_type *events_discarded_field_type = NULL; | |
a78a2e25 | 364 | |
1579cde5 PP |
365 | if (!stream || !count || !stream->packet_context || |
366 | stream->pos.fd < 0) { | |
a78a2e25 JG |
367 | ret = -1; |
368 | goto end; | |
369 | } | |
370 | ||
12c8a1a3 JG |
371 | events_discarded_field = bt_ctf_field_structure_get_field( |
372 | stream->packet_context, "events_discarded"); | |
373 | if (!events_discarded_field) { | |
374 | ret = -1; | |
375 | goto end; | |
376 | } | |
377 | ||
378 | events_discarded_field_type = bt_ctf_field_get_type( | |
379 | events_discarded_field); | |
380 | if (!events_discarded_field_type) { | |
381 | ret = -1; | |
382 | goto end; | |
383 | } | |
384 | ||
385 | field_signed = bt_ctf_field_type_integer_get_signed( | |
386 | events_discarded_field_type); | |
387 | if (field_signed < 0) { | |
388 | ret = field_signed; | |
389 | goto end; | |
390 | } | |
391 | ||
392 | if (field_signed) { | |
393 | int64_t signed_count; | |
394 | ||
395 | ret = bt_ctf_field_signed_integer_get_value( | |
396 | events_discarded_field, &signed_count); | |
397 | if (ret) { | |
398 | goto end; | |
399 | } | |
400 | if (signed_count < 0) { | |
401 | /* Invalid value */ | |
402 | ret = -1; | |
403 | goto end; | |
404 | } | |
405 | *count = (uint64_t) signed_count; | |
406 | } else { | |
407 | ret = bt_ctf_field_unsigned_integer_get_value( | |
408 | events_discarded_field, count); | |
409 | if (ret) { | |
410 | goto end; | |
411 | } | |
412 | } | |
a78a2e25 | 413 | end: |
83509119 JG |
414 | bt_put(events_discarded_field); |
415 | bt_put(events_discarded_field_type); | |
a78a2e25 JG |
416 | return ret; |
417 | } | |
418 | ||
273b65be JG |
419 | void bt_ctf_stream_append_discarded_events(struct bt_ctf_stream *stream, |
420 | uint64_t event_count) | |
421 | { | |
12c8a1a3 JG |
422 | int ret; |
423 | int field_signed; | |
424 | uint64_t previous_count; | |
425 | uint64_t new_count; | |
426 | struct bt_ctf_field *events_discarded_field = NULL; | |
427 | struct bt_ctf_field_type *events_discarded_field_type = NULL; | |
428 | ||
1579cde5 | 429 | if (!stream || !stream->packet_context || stream->pos.fd < 0) { |
12c8a1a3 JG |
430 | goto end; |
431 | } | |
432 | ||
433 | ret = bt_ctf_stream_get_discarded_events_count(stream, | |
434 | &previous_count); | |
435 | if (ret) { | |
436 | goto end; | |
437 | } | |
438 | ||
439 | events_discarded_field = bt_ctf_field_structure_get_field( | |
440 | stream->packet_context, "events_discarded"); | |
441 | if (!events_discarded_field) { | |
442 | goto end; | |
443 | } | |
444 | ||
445 | events_discarded_field_type = bt_ctf_field_get_type( | |
446 | events_discarded_field); | |
447 | if (!events_discarded_field_type) { | |
448 | goto end; | |
449 | } | |
450 | ||
451 | field_signed = bt_ctf_field_type_integer_get_signed( | |
452 | events_discarded_field_type); | |
453 | if (field_signed < 0) { | |
454 | goto end; | |
273b65be JG |
455 | } |
456 | ||
12c8a1a3 JG |
457 | new_count = previous_count + event_count; |
458 | if (field_signed) { | |
459 | ret = bt_ctf_field_signed_integer_set_value( | |
460 | events_discarded_field, (int64_t) new_count); | |
461 | if (ret) { | |
462 | goto end; | |
463 | } | |
464 | } else { | |
465 | ret = bt_ctf_field_unsigned_integer_set_value( | |
466 | events_discarded_field, new_count); | |
467 | if (ret) { | |
468 | goto end; | |
469 | } | |
470 | } | |
471 | ||
472 | end: | |
83509119 JG |
473 | bt_put(events_discarded_field); |
474 | bt_put(events_discarded_field_type); | |
273b65be JG |
475 | } |
476 | ||
477 | int bt_ctf_stream_append_event(struct bt_ctf_stream *stream, | |
478 | struct bt_ctf_event *event) | |
479 | { | |
480 | int ret = 0; | |
273b65be | 481 | |
1579cde5 | 482 | if (!stream || !event || stream->pos.fd < 0) { |
273b65be JG |
483 | ret = -1; |
484 | goto end; | |
485 | } | |
486 | ||
e6a8e8e4 | 487 | bt_object_set_parent(event, stream); |
662e778c JG |
488 | ret = bt_ctf_event_populate_event_header(event); |
489 | if (ret) { | |
490 | goto end; | |
491 | } | |
492 | ||
5fd2e9fd | 493 | /* Make sure the various scopes of the event are set */ |
273b65be JG |
494 | ret = bt_ctf_event_validate(event); |
495 | if (ret) { | |
496 | goto end; | |
497 | } | |
498 | ||
0d688c15 PP |
499 | /* Save the new event and freeze it */ |
500 | bt_ctf_event_freeze(event); | |
273b65be | 501 | g_ptr_array_add(stream->events, event); |
5fd2e9fd | 502 | |
e6a8e8e4 JG |
503 | /* |
504 | * Event had to hold a reference to its event class as long as it wasn't | |
505 | * part of the same trace hierarchy. From now on, the event and its | |
506 | * class share the same lifetime guarantees and the reference is no | |
507 | * longer needed. | |
508 | */ | |
509 | bt_put(event->event_class); | |
273b65be | 510 | end: |
123fbdec | 511 | if (ret) { |
e6a8e8e4 JG |
512 | /* |
513 | * Orphan the event; we were not succesful in associating it to | |
514 | * a stream. | |
515 | */ | |
516 | bt_object_set_parent(event, NULL); | |
123fbdec | 517 | } |
273b65be JG |
518 | return ret; |
519 | } | |
520 | ||
12c8a1a3 JG |
521 | struct bt_ctf_field *bt_ctf_stream_get_packet_context( |
522 | struct bt_ctf_stream *stream) | |
523 | { | |
524 | struct bt_ctf_field *packet_context = NULL; | |
525 | ||
1579cde5 | 526 | if (!stream || stream->pos.fd < 0) { |
12c8a1a3 JG |
527 | goto end; |
528 | } | |
529 | ||
530 | packet_context = stream->packet_context; | |
12c8a1a3 | 531 | if (packet_context) { |
83509119 | 532 | bt_get(packet_context); |
12c8a1a3 | 533 | } |
34629a55 | 534 | end: |
12c8a1a3 JG |
535 | return packet_context; |
536 | } | |
537 | ||
538 | int bt_ctf_stream_set_packet_context(struct bt_ctf_stream *stream, | |
539 | struct bt_ctf_field *field) | |
540 | { | |
541 | int ret = 0; | |
542 | struct bt_ctf_field_type *field_type; | |
543 | ||
1579cde5 | 544 | if (!stream || !field || stream->pos.fd < 0) { |
12c8a1a3 JG |
545 | ret = -1; |
546 | goto end; | |
547 | } | |
548 | ||
549 | field_type = bt_ctf_field_get_type(field); | |
09840de5 PP |
550 | if (bt_ctf_field_type_compare(field_type, |
551 | stream->stream_class->packet_context_type)) { | |
12c8a1a3 JG |
552 | ret = -1; |
553 | goto end; | |
554 | } | |
555 | ||
83509119 JG |
556 | bt_put(field_type); |
557 | bt_get(field); | |
558 | bt_put(stream->packet_context); | |
12c8a1a3 JG |
559 | stream->packet_context = field; |
560 | end: | |
561 | return ret; | |
562 | } | |
563 | ||
263a7df5 JG |
564 | struct bt_ctf_field *bt_ctf_stream_get_packet_header( |
565 | struct bt_ctf_stream *stream) | |
566 | { | |
567 | struct bt_ctf_field *packet_header = NULL; | |
568 | ||
1579cde5 | 569 | if (!stream || stream->pos.fd < 0) { |
263a7df5 JG |
570 | goto end; |
571 | } | |
572 | ||
573 | packet_header = stream->packet_header; | |
574 | if (packet_header) { | |
83509119 | 575 | bt_get(packet_header); |
263a7df5 JG |
576 | } |
577 | end: | |
578 | return packet_header; | |
579 | } | |
580 | ||
581 | int bt_ctf_stream_set_packet_header(struct bt_ctf_stream *stream, | |
582 | struct bt_ctf_field *field) | |
583 | { | |
584 | int ret = 0; | |
e6a8e8e4 | 585 | struct bt_ctf_trace *trace = NULL; |
263a7df5 JG |
586 | struct bt_ctf_field_type *field_type = NULL; |
587 | ||
1579cde5 | 588 | if (!stream || !field || stream->pos.fd < 0) { |
263a7df5 JG |
589 | ret = -1; |
590 | goto end; | |
591 | } | |
592 | ||
e6a8e8e4 | 593 | trace = (struct bt_ctf_trace *) bt_object_get_parent(stream); |
263a7df5 | 594 | field_type = bt_ctf_field_get_type(field); |
09840de5 | 595 | if (bt_ctf_field_type_compare(field_type, trace->packet_header_type)) { |
263a7df5 JG |
596 | ret = -1; |
597 | goto end; | |
598 | } | |
599 | ||
83509119 JG |
600 | bt_get(field); |
601 | bt_put(stream->packet_header); | |
263a7df5 JG |
602 | stream->packet_header = field; |
603 | end: | |
e6a8e8e4 | 604 | BT_PUT(trace); |
83509119 | 605 | bt_put(field_type); |
263a7df5 JG |
606 | return ret; |
607 | } | |
608 | ||
9a220c32 JG |
609 | static |
610 | int get_event_header_timestamp(struct bt_ctf_field *event_header, uint64_t *timestamp) | |
611 | { | |
612 | int ret = 0; | |
613 | struct bt_ctf_field *timestamp_field = NULL; | |
614 | struct bt_ctf_field_type *timestamp_field_type = NULL; | |
615 | ||
616 | timestamp_field = bt_ctf_field_structure_get_field(event_header, | |
617 | "timestamp"); | |
618 | if (!timestamp_field) { | |
619 | ret = -1; | |
620 | goto end; | |
621 | } | |
622 | ||
623 | timestamp_field_type = bt_ctf_field_get_type(timestamp_field); | |
624 | assert(timestamp_field_type); | |
625 | if (bt_ctf_field_type_get_type_id(timestamp_field_type) != | |
9a19a512 | 626 | BT_CTF_TYPE_ID_INTEGER) { |
9a220c32 JG |
627 | ret = -1; |
628 | goto end; | |
629 | } | |
630 | ||
631 | if (bt_ctf_field_type_integer_get_signed(timestamp_field_type)) { | |
632 | int64_t val; | |
633 | ||
634 | ret = bt_ctf_field_signed_integer_get_value(timestamp_field, | |
635 | &val); | |
636 | if (ret) { | |
637 | goto end; | |
638 | } | |
639 | *timestamp = (uint64_t) val; | |
640 | } else { | |
641 | ret = bt_ctf_field_unsigned_integer_get_value(timestamp_field, | |
642 | timestamp); | |
643 | if (ret) { | |
644 | goto end; | |
645 | } | |
646 | } | |
647 | end: | |
83509119 JG |
648 | bt_put(timestamp_field); |
649 | bt_put(timestamp_field_type); | |
9a220c32 JG |
650 | return ret; |
651 | } | |
652 | ||
273b65be JG |
653 | int bt_ctf_stream_flush(struct bt_ctf_stream *stream) |
654 | { | |
655 | int ret = 0; | |
656 | size_t i; | |
12c8a1a3 | 657 | uint64_t timestamp_begin, timestamp_end, events_discarded; |
273b65be JG |
658 | struct bt_ctf_field *integer = NULL; |
659 | struct ctf_stream_pos packet_context_pos; | |
660 | ||
bc37ae52 JG |
661 | if (!stream || stream->pos.fd < 0) { |
662 | /* | |
663 | * Stream does not have an associated fd. It is, | |
664 | * therefore, not a stream being used to write events. | |
665 | */ | |
273b65be JG |
666 | ret = -1; |
667 | goto end; | |
668 | } | |
669 | ||
670 | if (!stream->events->len) { | |
671 | goto end; | |
672 | } | |
673 | ||
d246b111 JG |
674 | ret = bt_ctf_field_validate(stream->packet_header); |
675 | if (ret) { | |
676 | goto end; | |
677 | } | |
678 | ||
28362f2b JG |
679 | /* mmap the next packet */ |
680 | ctf_packet_seek(&stream->pos.parent, 0, SEEK_CUR); | |
d246b111 JG |
681 | |
682 | ret = bt_ctf_field_serialize(stream->packet_header, &stream->pos); | |
683 | if (ret) { | |
684 | goto end; | |
273b65be JG |
685 | } |
686 | ||
12c8a1a3 | 687 | /* Set the default context attributes if present and unset. */ |
9a220c32 JG |
688 | if (!get_event_header_timestamp( |
689 | ((struct bt_ctf_event *) g_ptr_array_index( | |
690 | stream->events, 0))->event_header, ×tamp_begin)) { | |
691 | ret = set_structure_field_integer(stream->packet_context, | |
692 | "timestamp_begin", timestamp_begin); | |
693 | if (ret) { | |
694 | goto end; | |
695 | } | |
273b65be JG |
696 | } |
697 | ||
9a220c32 JG |
698 | if (!get_event_header_timestamp( |
699 | ((struct bt_ctf_event *) g_ptr_array_index( | |
700 | stream->events, stream->events->len - 1))->event_header, | |
701 | ×tamp_end)) { | |
273b65be | 702 | |
9a220c32 JG |
703 | ret = set_structure_field_integer(stream->packet_context, |
704 | "timestamp_end", timestamp_end); | |
705 | if (ret) { | |
706 | goto end; | |
707 | } | |
708 | } | |
12c8a1a3 | 709 | ret = set_structure_field_integer(stream->packet_context, |
273b65be JG |
710 | "content_size", UINT64_MAX); |
711 | if (ret) { | |
712 | goto end; | |
713 | } | |
714 | ||
12c8a1a3 | 715 | ret = set_structure_field_integer(stream->packet_context, |
273b65be JG |
716 | "packet_size", UINT64_MAX); |
717 | if (ret) { | |
718 | goto end; | |
719 | } | |
720 | ||
721 | /* Write packet context */ | |
722 | memcpy(&packet_context_pos, &stream->pos, | |
723 | sizeof(struct ctf_stream_pos)); | |
12c8a1a3 | 724 | ret = bt_ctf_field_serialize(stream->packet_context, |
273b65be JG |
725 | &stream->pos); |
726 | if (ret) { | |
727 | goto end; | |
728 | } | |
729 | ||
12c8a1a3 JG |
730 | ret = bt_ctf_stream_get_discarded_events_count(stream, |
731 | &events_discarded); | |
732 | if (ret) { | |
733 | goto end; | |
734 | } | |
735 | ||
736 | /* Unset the packet context's fields. */ | |
737 | ret = bt_ctf_field_reset(stream->packet_context); | |
738 | if (ret) { | |
739 | goto end; | |
740 | } | |
741 | ||
742 | /* Set the previous number of discarded events. */ | |
743 | ret = set_structure_field_integer(stream->packet_context, | |
744 | "events_discarded", events_discarded); | |
745 | if (ret) { | |
746 | goto end; | |
747 | } | |
748 | ||
273b65be JG |
749 | for (i = 0; i < stream->events->len; i++) { |
750 | struct bt_ctf_event *event = g_ptr_array_index( | |
751 | stream->events, i); | |
273b65be | 752 | |
662e778c | 753 | ret = bt_ctf_field_reset(event->event_header); |
12c8a1a3 JG |
754 | if (ret) { |
755 | goto end; | |
756 | } | |
757 | ||
273b65be | 758 | /* Write event header */ |
662e778c | 759 | ret = bt_ctf_field_serialize(event->event_header, |
273b65be JG |
760 | &stream->pos); |
761 | if (ret) { | |
762 | goto end; | |
763 | } | |
764 | ||
8bfa3f9c | 765 | /* Write stream event context */ |
5fd2e9fd | 766 | if (event->stream_event_context) { |
8bfa3f9c | 767 | ret = bt_ctf_field_serialize( |
5fd2e9fd | 768 | event->stream_event_context, &stream->pos); |
8bfa3f9c JG |
769 | if (ret) { |
770 | goto end; | |
771 | } | |
772 | } | |
773 | ||
273b65be JG |
774 | /* Write event content */ |
775 | ret = bt_ctf_event_serialize(event, &stream->pos); | |
776 | if (ret) { | |
777 | goto end; | |
778 | } | |
779 | } | |
780 | ||
781 | /* | |
782 | * Update the packet total size and content size and overwrite the | |
783 | * packet context. | |
3a092c05 JG |
784 | * Copy base_mma as the packet may have been remapped (e.g. when a |
785 | * packet is resized). | |
273b65be | 786 | */ |
3a092c05 | 787 | packet_context_pos.base_mma = stream->pos.base_mma; |
12c8a1a3 | 788 | ret = set_structure_field_integer(stream->packet_context, |
273b65be JG |
789 | "content_size", stream->pos.offset); |
790 | if (ret) { | |
791 | goto end; | |
792 | } | |
793 | ||
12c8a1a3 | 794 | ret = set_structure_field_integer(stream->packet_context, |
273b65be JG |
795 | "packet_size", stream->pos.packet_size); |
796 | if (ret) { | |
797 | goto end; | |
798 | } | |
799 | ||
12c8a1a3 | 800 | ret = bt_ctf_field_serialize(stream->packet_context, |
273b65be JG |
801 | &packet_context_pos); |
802 | if (ret) { | |
803 | goto end; | |
804 | } | |
805 | ||
806 | g_ptr_array_set_size(stream->events, 0); | |
807 | stream->flushed_packet_count++; | |
808 | end: | |
83509119 | 809 | bt_put(integer); |
273b65be JG |
810 | return ret; |
811 | } | |
812 | ||
813 | void bt_ctf_stream_get(struct bt_ctf_stream *stream) | |
814 | { | |
83509119 | 815 | bt_get(stream); |
273b65be JG |
816 | } |
817 | ||
818 | void bt_ctf_stream_put(struct bt_ctf_stream *stream) | |
819 | { | |
83509119 | 820 | bt_put(stream); |
273b65be JG |
821 | } |
822 | ||
823 | static | |
83509119 | 824 | void bt_ctf_stream_destroy(struct bt_object *obj) |
273b65be JG |
825 | { |
826 | struct bt_ctf_stream *stream; | |
273b65be | 827 | |
83509119 | 828 | stream = container_of(obj, struct bt_ctf_stream, base); |
273b65be | 829 | ctf_fini_pos(&stream->pos); |
0e45d308 | 830 | if (stream->pos.fd >= 0 && close(stream->pos.fd)) { |
9f56e450 JG |
831 | perror("close"); |
832 | } | |
12c8a1a3 | 833 | |
12c8a1a3 JG |
834 | if (stream->events) { |
835 | g_ptr_array_free(stream->events, TRUE); | |
836 | } | |
83509119 JG |
837 | bt_put(stream->packet_header); |
838 | bt_put(stream->packet_context); | |
839 | bt_put(stream->event_context); | |
273b65be JG |
840 | g_free(stream); |
841 | } | |
842 | ||
273b65be JG |
843 | static |
844 | int set_structure_field_integer(struct bt_ctf_field *structure, char *name, | |
845 | uint64_t value) | |
846 | { | |
847 | int ret = 0; | |
d7b1ea66 | 848 | struct bt_ctf_field_type *field_type = NULL; |
273b65be JG |
849 | struct bt_ctf_field *integer = |
850 | bt_ctf_field_structure_get_field(structure, name); | |
12c8a1a3 JG |
851 | |
852 | if (!structure || !name) { | |
273b65be JG |
853 | ret = -1; |
854 | goto end; | |
855 | } | |
856 | ||
12c8a1a3 JG |
857 | if (!integer) { |
858 | /* Field not found, not an error. */ | |
859 | goto end; | |
860 | } | |
861 | ||
862 | /* Make sure the payload has not already been set. */ | |
863 | if (!bt_ctf_field_validate(integer)) { | |
864 | /* Payload already set, not an error */ | |
865 | goto end; | |
866 | } | |
867 | ||
d7b1ea66 JG |
868 | field_type = bt_ctf_field_get_type(integer); |
869 | /* Something is serioulsly wrong */ | |
870 | assert(field_type); | |
9a19a512 | 871 | if (bt_ctf_field_type_get_type_id(field_type) != BT_CTF_TYPE_ID_INTEGER) { |
d7b1ea66 JG |
872 | /* |
873 | * The user most likely meant for us to populate this field | |
874 | * automatically. However, we can only do this if the field | |
875 | * is an integer. Return an error. | |
876 | */ | |
877 | ret = -1; | |
878 | goto end; | |
879 | } | |
880 | ||
881 | if (bt_ctf_field_type_integer_get_signed(field_type)) { | |
882 | ret = bt_ctf_field_signed_integer_set_value(integer, | |
883 | (int64_t) value); | |
884 | } else { | |
885 | ret = bt_ctf_field_unsigned_integer_set_value(integer, value); | |
886 | } | |
273b65be | 887 | end: |
83509119 JG |
888 | bt_put(integer); |
889 | bt_put(field_type); | |
273b65be JG |
890 | return ret; |
891 | } |