Commit | Line | Data |
---|---|---|
7a278c8e | 1 | /* |
ea0b4b9e | 2 | * fs.c |
7a278c8e | 3 | * |
ea0b4b9e | 4 | * Babeltrace CTF file system Reader Component |
7a278c8e | 5 | * |
f3bc2010 | 6 | * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
7a278c8e 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 | ||
5b29e799 | 29 | #include <babeltrace/ctf-ir/packet.h> |
ac0c6bdd | 30 | #include <babeltrace/ctf-ir/clock-class.h> |
890882ef PP |
31 | #include <babeltrace/component/private-component.h> |
32 | #include <babeltrace/component/component.h> | |
33b34c43 | 33 | #include <babeltrace/component/notification/iterator.h> |
890882ef | 34 | #include <babeltrace/component/notification/private-iterator.h> |
33b34c43 PP |
35 | #include <babeltrace/component/notification/stream.h> |
36 | #include <babeltrace/component/notification/event.h> | |
37 | #include <babeltrace/component/notification/packet.h> | |
38 | #include <babeltrace/component/notification/heap.h> | |
7d61fa8e | 39 | #include <plugins-common.h> |
ea0b4b9e JG |
40 | #include <glib.h> |
41 | #include <assert.h> | |
56a1cced JG |
42 | #include <unistd.h> |
43 | #include "fs.h" | |
413bc2c4 JG |
44 | #include "metadata.h" |
45 | #include "data-stream.h" | |
e7a4393b JG |
46 | #include "file.h" |
47 | ||
48 | #define PRINT_ERR_STREAM ctf_fs->error_fp | |
49 | #define PRINT_PREFIX "ctf-fs" | |
50 | #include "print.h" | |
33f93973 | 51 | #define METADATA_TEXT_SIG "/* CTF 1.8" |
ea0b4b9e | 52 | |
78bb6992 MD |
53 | BT_HIDDEN |
54 | bool ctf_fs_debug; | |
ea0b4b9e | 55 | |
f48bc732 | 56 | enum bt_notification_iterator_status ctf_fs_iterator_next( |
890882ef | 57 | struct bt_private_notification_iterator *iterator); |
f48bc732 | 58 | |
760051fa | 59 | struct bt_notification *ctf_fs_iterator_get( |
890882ef | 60 | struct bt_private_notification_iterator *iterator) |
ea0b4b9e | 61 | { |
5b29e799 | 62 | struct ctf_fs_iterator *ctf_it = |
890882ef PP |
63 | bt_private_notification_iterator_get_user_data( |
64 | iterator); | |
d01e0f33 | 65 | |
f48bc732 JG |
66 | if (!ctf_it->current_notification) { |
67 | (void) ctf_fs_iterator_next(iterator); | |
68 | } | |
69 | ||
5b29e799 | 70 | return bt_get(ctf_it->current_notification); |
ea0b4b9e JG |
71 | } |
72 | ||
73 | static | |
5b29e799 JG |
74 | enum bt_notification_iterator_status ctf_fs_iterator_get_next_notification( |
75 | struct ctf_fs_iterator *it, | |
76 | struct ctf_fs_stream *stream, | |
77 | struct bt_notification **notification) | |
ea0b4b9e | 78 | { |
5b29e799 | 79 | enum bt_ctf_notif_iter_status status; |
d01e0f33 | 80 | enum bt_notification_iterator_status ret; |
d01e0f33 | 81 | |
5b29e799 JG |
82 | if (stream->end_reached) { |
83 | status = BT_CTF_NOTIF_ITER_STATUS_EOF; | |
d01e0f33 JG |
84 | goto end; |
85 | } | |
86 | ||
5b29e799 JG |
87 | status = bt_ctf_notif_iter_get_next_notification(stream->notif_iter, |
88 | notification); | |
89 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK && | |
90 | status != BT_CTF_NOTIF_ITER_STATUS_EOF) { | |
d01e0f33 JG |
91 | goto end; |
92 | } | |
93 | ||
5b29e799 JG |
94 | /* Should be handled in bt_ctf_notif_iter_get_next_notification. */ |
95 | if (status == BT_CTF_NOTIF_ITER_STATUS_EOF) { | |
96 | *notification = bt_notification_stream_end_create( | |
97 | stream->stream); | |
98 | if (!*notification) { | |
99 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
100 | } | |
101 | status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
102 | stream->end_reached = true; | |
103 | } | |
d01e0f33 | 104 | end: |
5b29e799 JG |
105 | switch (status) { |
106 | case BT_CTF_NOTIF_ITER_STATUS_EOF: | |
107 | ret = BT_NOTIFICATION_ITERATOR_STATUS_END; | |
108 | break; | |
109 | case BT_CTF_NOTIF_ITER_STATUS_OK: | |
110 | ret = BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
111 | break; | |
112 | case BT_CTF_NOTIF_ITER_STATUS_AGAIN: | |
113 | /* | |
114 | * Should not make it this far as this is medium-specific; | |
115 | * there is nothing for the user to do and it should have been | |
116 | * handled upstream. | |
117 | */ | |
118 | assert(0); | |
119 | case BT_CTF_NOTIF_ITER_STATUS_INVAL: | |
120 | /* No argument provided by the user, so don't return INVAL. */ | |
121 | case BT_CTF_NOTIF_ITER_STATUS_ERROR: | |
122 | default: | |
123 | ret = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; | |
124 | break; | |
125 | } | |
043e2020 | 126 | return ret; |
ea0b4b9e | 127 | } |
bfd20a42 | 128 | |
5b29e799 JG |
129 | /* |
130 | * Remove me. This is a temporary work-around due to our inhability to use | |
131 | * libbabeltrace-ctf from libbabeltrace-plugin. | |
132 | */ | |
760051fa | 133 | static |
5b29e799 JG |
134 | struct bt_ctf_stream *internal_bt_notification_get_stream( |
135 | struct bt_notification *notification) | |
760051fa | 136 | { |
5b29e799 JG |
137 | struct bt_ctf_stream *stream = NULL; |
138 | ||
139 | assert(notification); | |
140 | switch (bt_notification_get_type(notification)) { | |
141 | case BT_NOTIFICATION_TYPE_EVENT: | |
142 | { | |
143 | struct bt_ctf_event *event; | |
144 | ||
145 | event = bt_notification_event_get_event(notification); | |
146 | stream = bt_ctf_event_get_stream(event); | |
147 | bt_put(event); | |
148 | break; | |
149 | } | |
ea0e619e | 150 | case BT_NOTIFICATION_TYPE_PACKET_BEGIN: |
5b29e799 JG |
151 | { |
152 | struct bt_ctf_packet *packet; | |
153 | ||
ea0e619e | 154 | packet = bt_notification_packet_begin_get_packet(notification); |
5b29e799 JG |
155 | stream = bt_ctf_packet_get_stream(packet); |
156 | bt_put(packet); | |
157 | break; | |
158 | } | |
159 | case BT_NOTIFICATION_TYPE_PACKET_END: | |
160 | { | |
161 | struct bt_ctf_packet *packet; | |
162 | ||
163 | packet = bt_notification_packet_end_get_packet(notification); | |
164 | stream = bt_ctf_packet_get_stream(packet); | |
165 | bt_put(packet); | |
166 | break; | |
167 | } | |
168 | case BT_NOTIFICATION_TYPE_STREAM_END: | |
169 | stream = bt_notification_stream_end_get_stream(notification); | |
170 | break; | |
171 | default: | |
172 | goto end; | |
173 | } | |
174 | end: | |
175 | return stream; | |
760051fa JG |
176 | } |
177 | ||
178 | static | |
5b29e799 | 179 | enum bt_notification_iterator_status populate_heap(struct ctf_fs_iterator *it) |
760051fa | 180 | { |
5b29e799 JG |
181 | size_t i, pending_streams_count = it->pending_streams->len; |
182 | enum bt_notification_iterator_status ret = | |
183 | BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
184 | ||
185 | /* Insert one stream-associated notification for each stream. */ | |
186 | for (i = 0; i < pending_streams_count; i++) { | |
187 | struct bt_notification *notification; | |
188 | struct ctf_fs_stream *fs_stream; | |
189 | struct bt_ctf_stream *stream; | |
190 | size_t pending_stream_index = pending_streams_count - 1 - i; | |
191 | ||
192 | fs_stream = g_ptr_array_index(it->pending_streams, | |
193 | pending_stream_index); | |
194 | ||
195 | do { | |
196 | int heap_ret; | |
197 | ||
198 | ret = ctf_fs_iterator_get_next_notification( | |
199 | it, fs_stream, ¬ification); | |
200 | if (ret && ret != BT_NOTIFICATION_ITERATOR_STATUS_END) { | |
201 | printf_debug("Failed to populate heap at stream %zu\n", | |
202 | pending_stream_index); | |
203 | goto end; | |
204 | } | |
205 | ||
206 | stream = internal_bt_notification_get_stream( | |
207 | notification); | |
208 | if (stream) { | |
209 | gboolean inserted; | |
210 | ||
211 | /* | |
212 | * Associate pending ctf_fs_stream to | |
213 | * bt_ctf_stream. Ownership of stream | |
214 | * is passed to the stream ht. | |
215 | */ | |
216 | inserted = g_hash_table_insert(it->stream_ht, | |
217 | stream, fs_stream); | |
218 | if (!inserted) { | |
219 | ret = BT_NOTIFICATION_ITERATOR_STATUS_NOMEM; | |
220 | printf_debug("Failed to associate fs stream to ctf stream\n"); | |
221 | goto end; | |
222 | } | |
223 | } | |
224 | ||
225 | heap_ret = bt_notification_heap_insert( | |
226 | it->pending_notifications, | |
227 | notification); | |
228 | bt_put(notification); | |
229 | if (heap_ret) { | |
230 | ret = BT_NOTIFICATION_ITERATOR_STATUS_NOMEM; | |
231 | printf_debug("Failed to insert notification in heap\n"); | |
232 | goto end; | |
233 | } | |
234 | } while (!stream && ret != BT_NOTIFICATION_ITERATOR_STATUS_END); | |
235 | /* | |
236 | * Set NULL so the destruction callback registered with the | |
237 | * array is not invoked on the stream (its ownership was | |
238 | * transferred to the streams hashtable). | |
239 | */ | |
240 | g_ptr_array_index(it->pending_streams, | |
241 | pending_stream_index) = NULL; | |
242 | g_ptr_array_remove_index(it->pending_streams, | |
243 | pending_stream_index); | |
244 | } | |
760051fa | 245 | |
5b29e799 JG |
246 | g_ptr_array_free(it->pending_streams, TRUE); |
247 | it->pending_streams = NULL; | |
248 | end: | |
249 | return ret; | |
760051fa JG |
250 | } |
251 | ||
5b29e799 | 252 | enum bt_notification_iterator_status ctf_fs_iterator_next( |
890882ef | 253 | struct bt_private_notification_iterator *iterator) |
4c1456f0 | 254 | { |
5b29e799 | 255 | int heap_ret; |
a11bd504 | 256 | struct bt_ctf_stream *stream = NULL; |
5b29e799 JG |
257 | struct ctf_fs_stream *fs_stream; |
258 | struct bt_notification *notification; | |
259 | struct bt_notification *next_stream_notification; | |
260 | enum bt_notification_iterator_status ret = | |
261 | BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
262 | struct ctf_fs_iterator *ctf_it = | |
890882ef PP |
263 | bt_private_notification_iterator_get_user_data( |
264 | iterator); | |
5b29e799 JG |
265 | |
266 | notification = bt_notification_heap_pop(ctf_it->pending_notifications); | |
267 | if (!notification && !ctf_it->pending_streams) { | |
268 | ret = BT_NOTIFICATION_ITERATOR_STATUS_END; | |
760051fa JG |
269 | goto end; |
270 | } | |
271 | ||
5b29e799 JG |
272 | if (!notification && ctf_it->pending_streams) { |
273 | /* | |
274 | * Insert at one notification per stream in the heap and pop | |
275 | * one. | |
276 | */ | |
277 | ret = populate_heap(ctf_it); | |
278 | if (ret) { | |
279 | goto end; | |
280 | } | |
281 | ||
282 | notification = bt_notification_heap_pop( | |
283 | ctf_it->pending_notifications); | |
284 | if (!notification) { | |
285 | ret = BT_NOTIFICATION_ITERATOR_STATUS_END; | |
286 | goto end; | |
287 | } | |
760051fa JG |
288 | } |
289 | ||
5b29e799 JG |
290 | /* notification is set from here. */ |
291 | ||
292 | stream = internal_bt_notification_get_stream(notification); | |
293 | if (!stream) { | |
294 | /* | |
295 | * The current notification is not associated to a particular | |
296 | * stream, there is no need to insert a new notification from | |
297 | * a stream in the heap. | |
298 | */ | |
299 | goto end; | |
760051fa JG |
300 | } |
301 | ||
5b29e799 JG |
302 | fs_stream = g_hash_table_lookup(ctf_it->stream_ht, stream); |
303 | if (!fs_stream) { | |
304 | /* We have reached this stream's end. */ | |
305 | goto end; | |
760051fa JG |
306 | } |
307 | ||
5b29e799 JG |
308 | ret = ctf_fs_iterator_get_next_notification(ctf_it, fs_stream, |
309 | &next_stream_notification); | |
310 | if ((ret && ret != BT_NOTIFICATION_ITERATOR_STATUS_END)) { | |
311 | heap_ret = bt_notification_heap_insert( | |
312 | ctf_it->pending_notifications, notification); | |
313 | ||
314 | assert(!next_stream_notification); | |
315 | if (heap_ret) { | |
316 | /* | |
317 | * We're dropping the most recent notification, but at | |
318 | * this point, something is seriously wrong... | |
319 | */ | |
320 | ret = BT_NOTIFICATION_ITERATOR_STATUS_NOMEM; | |
321 | } | |
322 | BT_PUT(notification); | |
323 | goto end; | |
324 | } | |
325 | ||
326 | if (ret == BT_NOTIFICATION_ITERATOR_STATUS_END) { | |
327 | gboolean success; | |
328 | ||
329 | /* Remove stream. */ | |
330 | success = g_hash_table_remove(ctf_it->stream_ht, stream); | |
331 | assert(success); | |
332 | ret = BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
333 | } else { | |
334 | heap_ret = bt_notification_heap_insert(ctf_it->pending_notifications, | |
335 | next_stream_notification); | |
336 | BT_PUT(next_stream_notification); | |
337 | if (heap_ret) { | |
338 | /* | |
339 | * We're dropping the most recent notification... | |
340 | */ | |
341 | ret = BT_NOTIFICATION_ITERATOR_STATUS_NOMEM; | |
342 | } | |
760051fa | 343 | } |
5b29e799 JG |
344 | |
345 | /* | |
346 | * Ensure that the stream is removed from both pending_streams and | |
347 | * the streams hashtable on reception of the "end of stream" | |
348 | * notification. | |
349 | */ | |
760051fa | 350 | end: |
5b29e799 | 351 | BT_MOVE(ctf_it->current_notification, notification); |
33bf10b7 | 352 | bt_put(stream); |
760051fa JG |
353 | return ret; |
354 | } | |
355 | ||
760051fa | 356 | static |
5b29e799 | 357 | void ctf_fs_iterator_destroy_data(struct ctf_fs_iterator *ctf_it) |
760051fa | 358 | { |
8fa760ba JG |
359 | if (!ctf_it) { |
360 | return; | |
361 | } | |
5b29e799 JG |
362 | bt_put(ctf_it->current_notification); |
363 | bt_put(ctf_it->pending_notifications); | |
364 | if (ctf_it->pending_streams) { | |
365 | g_ptr_array_free(ctf_it->pending_streams, TRUE); | |
56a1cced | 366 | } |
5b29e799 JG |
367 | if (ctf_it->stream_ht) { |
368 | g_hash_table_destroy(ctf_it->stream_ht); | |
c14d7e26 | 369 | } |
5b29e799 | 370 | g_free(ctf_it); |
760051fa JG |
371 | } |
372 | ||
64cadc66 | 373 | void ctf_fs_iterator_finalize(struct bt_private_notification_iterator *it) |
760051fa | 374 | { |
890882ef | 375 | void *data = bt_private_notification_iterator_get_user_data(it); |
760051fa | 376 | |
5b29e799 | 377 | ctf_fs_iterator_destroy_data(data); |
4c1456f0 JG |
378 | } |
379 | ||
a4792757 JG |
380 | static |
381 | bool compare_event_notifications(struct bt_notification *a, | |
382 | struct bt_notification *b) | |
383 | { | |
384 | int ret; | |
ac0c6bdd | 385 | struct bt_ctf_clock_class *clock_class; |
a4792757 JG |
386 | struct bt_ctf_clock_value *a_clock_value, *b_clock_value; |
387 | struct bt_ctf_stream_class *a_stream_class; | |
388 | struct bt_ctf_stream *a_stream; | |
389 | struct bt_ctf_event *a_event, *b_event; | |
390 | struct bt_ctf_trace *trace; | |
391 | int64_t a_ts, b_ts; | |
392 | ||
393 | // FIXME - assumes only one clock | |
394 | a_event = bt_notification_event_get_event(a); | |
395 | b_event = bt_notification_event_get_event(b); | |
396 | assert(a_event); | |
397 | assert(b_event); | |
398 | ||
399 | a_stream = bt_ctf_event_get_stream(a_event); | |
400 | assert(a_stream); | |
401 | a_stream_class = bt_ctf_stream_get_class(a_stream); | |
402 | assert(a_stream_class); | |
403 | trace = bt_ctf_stream_class_get_trace(a_stream_class); | |
404 | assert(trace); | |
405 | ||
ac0c6bdd PP |
406 | clock_class = bt_ctf_trace_get_clock_class(trace, 0); |
407 | a_clock_value = bt_ctf_event_get_clock_value(a_event, clock_class); | |
408 | b_clock_value = bt_ctf_event_get_clock_value(b_event, clock_class); | |
a4792757 JG |
409 | assert(a_clock_value); |
410 | assert(b_clock_value); | |
411 | ||
412 | ret = bt_ctf_clock_value_get_value_ns_from_epoch(a_clock_value, &a_ts); | |
413 | assert(!ret); | |
414 | ret = bt_ctf_clock_value_get_value_ns_from_epoch(b_clock_value, &b_ts); | |
415 | assert(!ret); | |
416 | ||
417 | bt_put(a_event); | |
418 | bt_put(b_event); | |
419 | bt_put(a_clock_value); | |
420 | bt_put(b_clock_value); | |
421 | bt_put(a_stream); | |
422 | bt_put(a_stream_class); | |
ac0c6bdd | 423 | bt_put(clock_class); |
a4792757 JG |
424 | bt_put(trace); |
425 | return a_ts < b_ts; | |
426 | } | |
427 | ||
e7a4393b | 428 | static |
5b29e799 JG |
429 | bool compare_notifications(struct bt_notification *a, struct bt_notification *b, |
430 | void *unused) | |
431 | { | |
a4792757 JG |
432 | static int notification_priorities[] = { |
433 | [BT_NOTIFICATION_TYPE_NEW_TRACE] = 0, | |
434 | [BT_NOTIFICATION_TYPE_NEW_STREAM_CLASS] = 1, | |
435 | [BT_NOTIFICATION_TYPE_NEW_EVENT_CLASS] = 2, | |
ea0e619e | 436 | [BT_NOTIFICATION_TYPE_PACKET_BEGIN] = 3, |
a4792757 JG |
437 | [BT_NOTIFICATION_TYPE_PACKET_END] = 4, |
438 | [BT_NOTIFICATION_TYPE_EVENT] = 5, | |
439 | [BT_NOTIFICATION_TYPE_END_OF_TRACE] = 6, | |
440 | }; | |
441 | int a_prio, b_prio; | |
442 | enum bt_notification_type a_type, b_type; | |
443 | ||
444 | assert(a && b); | |
445 | a_type = bt_notification_get_type(a); | |
446 | b_type = bt_notification_get_type(b); | |
447 | assert(a_type > BT_NOTIFICATION_TYPE_ALL); | |
448 | assert(a_type < BT_NOTIFICATION_TYPE_NR); | |
449 | assert(b_type > BT_NOTIFICATION_TYPE_ALL); | |
450 | assert(b_type < BT_NOTIFICATION_TYPE_NR); | |
451 | ||
452 | a_prio = notification_priorities[a_type]; | |
453 | b_prio = notification_priorities[b_type]; | |
454 | ||
455 | if (likely((a_type == b_type) && a_type == BT_NOTIFICATION_TYPE_EVENT)) { | |
456 | return compare_event_notifications(a, b); | |
457 | } | |
458 | ||
459 | if (unlikely(a_prio != b_prio)) { | |
460 | return a_prio < b_prio; | |
461 | } | |
462 | ||
463 | /* Notification types are equal, but not of type "event". */ | |
464 | switch (a_type) { | |
ea0e619e | 465 | case BT_NOTIFICATION_TYPE_PACKET_BEGIN: |
a4792757 JG |
466 | case BT_NOTIFICATION_TYPE_PACKET_END: |
467 | case BT_NOTIFICATION_TYPE_STREAM_END: | |
468 | { | |
469 | int64_t a_sc_id, b_sc_id; | |
470 | struct bt_ctf_stream *a_stream, *b_stream; | |
471 | struct bt_ctf_stream_class *a_sc, *b_sc; | |
472 | ||
473 | a_stream = internal_bt_notification_get_stream(a); | |
474 | b_stream = internal_bt_notification_get_stream(b); | |
475 | assert(a_stream && b_stream); | |
476 | ||
477 | a_sc = bt_ctf_stream_get_class(a_stream); | |
478 | b_sc = bt_ctf_stream_get_class(b_stream); | |
479 | assert(a_sc && b_sc); | |
480 | ||
481 | a_sc_id = bt_ctf_stream_class_get_id(a_sc); | |
482 | b_sc_id = bt_ctf_stream_class_get_id(b_sc); | |
483 | assert(a_sc_id >= 0 && b_sc_id >= 0); | |
484 | bt_put(a_sc); | |
485 | bt_put(a_stream); | |
486 | bt_put(b_sc); | |
487 | bt_put(b_stream); | |
488 | return a_sc_id < b_sc_id; | |
489 | } | |
490 | case BT_NOTIFICATION_TYPE_NEW_TRACE: | |
491 | case BT_NOTIFICATION_TYPE_END_OF_TRACE: | |
492 | /* Impossible to have two separate traces. */ | |
493 | default: | |
494 | assert(0); | |
495 | } | |
496 | ||
497 | assert(0); | |
5b29e799 JG |
498 | return a < b; |
499 | } | |
500 | ||
501 | static | |
502 | void stream_destroy(void *stream) | |
503 | { | |
504 | ctf_fs_stream_destroy((struct ctf_fs_stream *) stream); | |
505 | } | |
506 | ||
507 | static | |
508 | int open_trace_streams(struct ctf_fs_component *ctf_fs, | |
509 | struct ctf_fs_iterator *ctf_it) | |
e7a4393b JG |
510 | { |
511 | int ret = 0; | |
512 | const char *name; | |
513 | GError *error = NULL; | |
514 | GDir *dir = g_dir_open(ctf_fs->trace_path->str, 0, &error); | |
515 | ||
516 | if (!dir) { | |
517 | PERR("Cannot open directory \"%s\": %s (code %d)\n", | |
518 | ctf_fs->trace_path->str, error->message, | |
519 | error->code); | |
520 | goto error; | |
521 | } | |
522 | ||
523 | while ((name = g_dir_read_name(dir))) { | |
524 | struct ctf_fs_file *file = NULL; | |
525 | struct ctf_fs_stream *stream = NULL; | |
526 | ||
527 | if (!strcmp(name, CTF_FS_METADATA_FILENAME)) { | |
528 | /* Ignore the metadata stream. */ | |
529 | PDBG("Ignoring metadata file \"%s\"\n", | |
530 | name); | |
531 | continue; | |
532 | } | |
533 | ||
534 | if (name[0] == '.') { | |
535 | PDBG("Ignoring hidden file \"%s\"\n", | |
536 | name); | |
537 | continue; | |
538 | } | |
539 | ||
540 | /* Create the file. */ | |
541 | file = ctf_fs_file_create(ctf_fs); | |
542 | if (!file) { | |
543 | PERR("Cannot create stream file object\n"); | |
544 | goto error; | |
545 | } | |
546 | ||
547 | /* Create full path string. */ | |
548 | g_string_append_printf(file->path, "%s/%s", | |
549 | ctf_fs->trace_path->str, name); | |
550 | if (!g_file_test(file->path->str, G_FILE_TEST_IS_REGULAR)) { | |
551 | PDBG("Ignoring non-regular file \"%s\"\n", name); | |
552 | ctf_fs_file_destroy(file); | |
553 | continue; | |
554 | } | |
555 | ||
556 | /* Open the file. */ | |
557 | if (ctf_fs_file_open(ctf_fs, file, "rb")) { | |
558 | ctf_fs_file_destroy(file); | |
559 | goto error; | |
560 | } | |
561 | ||
9fa0891a JG |
562 | if (file->size == 0) { |
563 | /* Skip empty stream. */ | |
564 | ctf_fs_file_destroy(file); | |
565 | continue; | |
566 | } | |
567 | ||
e7a4393b JG |
568 | /* Create a private stream; file ownership is passed to it. */ |
569 | stream = ctf_fs_stream_create(ctf_fs, file); | |
570 | if (!stream) { | |
571 | ctf_fs_file_destroy(file); | |
572 | goto error; | |
573 | } | |
574 | ||
5b29e799 | 575 | g_ptr_array_add(ctf_it->pending_streams, stream); |
e7a4393b JG |
576 | } |
577 | ||
578 | goto end; | |
579 | error: | |
580 | ret = -1; | |
581 | end: | |
582 | if (dir) { | |
583 | g_dir_close(dir); | |
584 | dir = NULL; | |
585 | } | |
586 | if (error) { | |
587 | g_error_free(error); | |
588 | } | |
589 | return ret; | |
590 | } | |
591 | ||
890882ef PP |
592 | enum bt_notification_iterator_status ctf_fs_iterator_init( |
593 | struct bt_private_component *source, | |
594 | struct bt_private_port *port, | |
595 | struct bt_private_notification_iterator *it) | |
e7a4393b | 596 | { |
5b29e799 JG |
597 | struct ctf_fs_iterator *ctf_it; |
598 | struct ctf_fs_component *ctf_fs; | |
d3eb6e8f | 599 | enum bt_notification_iterator_status ret = BT_NOTIFICATION_ITERATOR_STATUS_OK; |
5b29e799 JG |
600 | |
601 | assert(source && it); | |
602 | ||
890882ef | 603 | ctf_fs = bt_private_component_get_user_data(source); |
5b29e799 | 604 | if (!ctf_fs) { |
d3eb6e8f | 605 | ret = BT_NOTIFICATION_ITERATOR_STATUS_INVAL; |
5b29e799 JG |
606 | goto end; |
607 | } | |
608 | ||
609 | ctf_it = g_new0(struct ctf_fs_iterator, 1); | |
610 | if (!ctf_it) { | |
d3eb6e8f | 611 | ret = BT_NOTIFICATION_ITERATOR_STATUS_NOMEM; |
5b29e799 JG |
612 | goto end; |
613 | } | |
614 | ||
615 | ctf_it->stream_ht = g_hash_table_new_full(g_direct_hash, | |
616 | g_direct_equal, bt_put, stream_destroy); | |
617 | if (!ctf_it->stream_ht) { | |
618 | goto error; | |
619 | } | |
620 | ctf_it->pending_streams = g_ptr_array_new_with_free_func( | |
621 | stream_destroy); | |
622 | if (!ctf_it->pending_streams) { | |
623 | goto error; | |
624 | } | |
625 | ctf_it->pending_notifications = bt_notification_heap_create( | |
626 | compare_notifications, NULL); | |
627 | if (!ctf_it->pending_notifications) { | |
628 | goto error; | |
629 | } | |
630 | ||
631 | ret = open_trace_streams(ctf_fs, ctf_it); | |
632 | if (ret) { | |
633 | goto error; | |
634 | } | |
635 | ||
890882ef | 636 | ret = bt_private_notification_iterator_set_user_data(it, ctf_it); |
5b29e799 JG |
637 | if (ret) { |
638 | goto error; | |
639 | } | |
f48bc732 | 640 | |
5b29e799 JG |
641 | end: |
642 | return ret; | |
643 | error: | |
890882ef | 644 | (void) bt_private_notification_iterator_set_user_data(it, NULL); |
5b29e799 JG |
645 | ctf_fs_iterator_destroy_data(ctf_it); |
646 | goto end; | |
647 | } | |
648 | ||
649 | static | |
650 | void ctf_fs_destroy_data(struct ctf_fs_component *ctf_fs) | |
651 | { | |
fa5a772d JG |
652 | if (!ctf_fs) { |
653 | return; | |
654 | } | |
5b29e799 JG |
655 | if (ctf_fs->trace_path) { |
656 | g_string_free(ctf_fs->trace_path, TRUE); | |
657 | } | |
658 | if (ctf_fs->metadata) { | |
659 | ctf_fs_metadata_fini(ctf_fs->metadata); | |
660 | g_free(ctf_fs->metadata); | |
661 | } | |
662 | g_free(ctf_fs); | |
663 | } | |
664 | ||
64cadc66 | 665 | void ctf_fs_finalize(struct bt_private_component *component) |
5b29e799 | 666 | { |
890882ef | 667 | void *data = bt_private_component_get_user_data(component); |
5b29e799 JG |
668 | |
669 | ctf_fs_destroy_data(data); | |
e7a4393b JG |
670 | } |
671 | ||
56a1cced JG |
672 | static |
673 | struct ctf_fs_component *ctf_fs_create(struct bt_value *params) | |
674 | { | |
675 | struct ctf_fs_component *ctf_fs; | |
1ef09eb5 | 676 | struct bt_value *value = NULL; |
56a1cced JG |
677 | const char *path; |
678 | enum bt_value_status ret; | |
679 | ||
680 | ctf_fs = g_new0(struct ctf_fs_component, 1); | |
681 | if (!ctf_fs) { | |
682 | goto end; | |
683 | } | |
684 | ||
685 | /* FIXME: should probably look for a source URI */ | |
686 | value = bt_value_map_get(params, "path"); | |
687 | if (!value || bt_value_is_null(value) || !bt_value_is_string(value)) { | |
688 | goto error; | |
689 | } | |
690 | ||
691 | ret = bt_value_string_get(value, &path); | |
692 | if (ret != BT_VALUE_STATUS_OK) { | |
693 | goto error; | |
694 | } | |
695 | ||
696 | ctf_fs->trace_path = g_string_new(path); | |
697 | if (!ctf_fs->trace_path) { | |
698 | goto error; | |
699 | } | |
56a1cced JG |
700 | ctf_fs->error_fp = stderr; |
701 | ctf_fs->page_size = (size_t) getpagesize(); | |
e7a4393b JG |
702 | |
703 | // FIXME: check error. | |
5b29e799 JG |
704 | ctf_fs->metadata = g_new0(struct ctf_fs_metadata, 1); |
705 | if (!ctf_fs->metadata) { | |
e7a4393b JG |
706 | goto error; |
707 | } | |
5b29e799 | 708 | ctf_fs_metadata_set_trace(ctf_fs); |
1ef09eb5 JG |
709 | goto end; |
710 | ||
56a1cced JG |
711 | error: |
712 | ctf_fs_destroy_data(ctf_fs); | |
e7a4393b | 713 | ctf_fs = NULL; |
1ef09eb5 JG |
714 | end: |
715 | BT_PUT(value); | |
56a1cced JG |
716 | return ctf_fs; |
717 | } | |
718 | ||
ea0b4b9e | 719 | BT_HIDDEN |
890882ef | 720 | enum bt_component_status ctf_fs_init(struct bt_private_component *source, |
7d61fa8e | 721 | struct bt_value *params, UNUSED_VAR void *init_method_data) |
ea0b4b9e JG |
722 | { |
723 | struct ctf_fs_component *ctf_fs; | |
724 | enum bt_component_status ret = BT_COMPONENT_STATUS_OK; | |
725 | ||
726 | assert(source); | |
727 | ctf_fs_debug = g_strcmp0(getenv("CTF_FS_DEBUG"), "1") == 0; | |
728 | ctf_fs = ctf_fs_create(params); | |
729 | if (!ctf_fs) { | |
730 | ret = BT_COMPONENT_STATUS_NOMEM; | |
731 | goto end; | |
732 | } | |
4c1456f0 | 733 | |
890882ef | 734 | ret = bt_private_component_set_user_data(source, ctf_fs); |
ea0b4b9e JG |
735 | if (ret != BT_COMPONENT_STATUS_OK) { |
736 | goto error; | |
737 | } | |
ea0b4b9e JG |
738 | end: |
739 | return ret; | |
740 | error: | |
890882ef | 741 | (void) bt_private_component_set_user_data(source, NULL); |
760051fa | 742 | ctf_fs_destroy_data(ctf_fs); |
ea0b4b9e JG |
743 | return ret; |
744 | } | |
33f93973 PP |
745 | |
746 | BT_HIDDEN | |
a67681c1 PP |
747 | struct bt_value *ctf_fs_query(struct bt_component_class *comp_class, |
748 | const char *object, struct bt_value *params) | |
33f93973 PP |
749 | { |
750 | struct bt_value *results = NULL; | |
751 | struct bt_value *path_value = NULL; | |
752 | char *metadata_text = NULL; | |
753 | FILE *metadata_fp = NULL; | |
754 | GString *g_metadata_text = NULL; | |
755 | ||
a67681c1 | 756 | if (strcmp(object, "metadata-info") == 0) { |
33f93973 PP |
757 | int ret; |
758 | int bo; | |
759 | const char *path; | |
760 | bool is_packetized; | |
761 | ||
762 | results = bt_value_map_create(); | |
763 | if (!results) { | |
764 | goto error; | |
765 | } | |
766 | ||
767 | if (!bt_value_is_map(params)) { | |
768 | fprintf(stderr, | |
a67681c1 | 769 | "Query parameters is not a map value object\n"); |
33f93973 PP |
770 | goto error; |
771 | } | |
772 | ||
773 | path_value = bt_value_map_get(params, "path"); | |
774 | ret = bt_value_string_get(path_value, &path); | |
775 | if (ret) { | |
776 | fprintf(stderr, | |
777 | "Cannot get `path` string parameter\n"); | |
778 | goto error; | |
779 | } | |
780 | ||
781 | assert(path); | |
782 | metadata_fp = ctf_fs_metadata_open_file(path); | |
783 | if (!metadata_fp) { | |
784 | fprintf(stderr, | |
785 | "Cannot open trace at path `%s`\n", path); | |
786 | goto error; | |
787 | } | |
788 | ||
789 | is_packetized = ctf_metadata_is_packetized(metadata_fp, &bo); | |
790 | ||
791 | if (is_packetized) { | |
792 | ret = ctf_metadata_packetized_file_to_buf(NULL, | |
793 | metadata_fp, (uint8_t **) &metadata_text, bo); | |
794 | if (ret) { | |
795 | fprintf(stderr, | |
796 | "Cannot decode packetized metadata file\n"); | |
797 | goto error; | |
798 | } | |
799 | } else { | |
800 | long filesize; | |
801 | ||
802 | fseek(metadata_fp, 0, SEEK_END); | |
803 | filesize = ftell(metadata_fp); | |
804 | rewind(metadata_fp); | |
805 | metadata_text = malloc(filesize + 1); | |
806 | if (!metadata_text) { | |
807 | fprintf(stderr, | |
808 | "Cannot allocate buffer for metadata text\n"); | |
809 | goto error; | |
810 | } | |
811 | ||
812 | if (fread(metadata_text, filesize, 1, metadata_fp) != | |
813 | 1) { | |
814 | fprintf(stderr, | |
815 | "Cannot read metadata file\n"); | |
816 | goto error; | |
817 | } | |
818 | ||
819 | metadata_text[filesize] = '\0'; | |
820 | } | |
821 | ||
822 | g_metadata_text = g_string_new(NULL); | |
823 | if (!g_metadata_text) { | |
824 | goto error; | |
825 | } | |
826 | ||
827 | if (strncmp(metadata_text, METADATA_TEXT_SIG, | |
828 | sizeof(METADATA_TEXT_SIG) - 1) != 0) { | |
829 | g_string_assign(g_metadata_text, METADATA_TEXT_SIG); | |
830 | g_string_append(g_metadata_text, " */\n\n"); | |
831 | } | |
832 | ||
833 | g_string_append(g_metadata_text, metadata_text); | |
834 | ||
835 | ret = bt_value_map_insert_string(results, "text", | |
836 | g_metadata_text->str); | |
837 | if (ret) { | |
838 | fprintf(stderr, "Cannot insert metadata text into results\n"); | |
839 | goto error; | |
840 | } | |
841 | ||
842 | ret = bt_value_map_insert_bool(results, "is-packetized", | |
843 | is_packetized); | |
844 | if (ret) { | |
845 | fprintf(stderr, "Cannot insert is packetized into results\n"); | |
846 | goto error; | |
847 | } | |
848 | } else { | |
a67681c1 | 849 | fprintf(stderr, "Unknown query object `%s`\n", object); |
33f93973 PP |
850 | goto error; |
851 | } | |
852 | ||
853 | goto end; | |
854 | ||
855 | error: | |
856 | BT_PUT(results); | |
857 | ||
858 | end: | |
859 | bt_put(path_value); | |
860 | free(metadata_text); | |
861 | ||
862 | if (g_metadata_text) { | |
863 | g_string_free(g_metadata_text, TRUE); | |
864 | } | |
865 | ||
866 | if (metadata_fp) { | |
867 | fclose(metadata_fp); | |
868 | } | |
869 | return results; | |
870 | } |