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46bdd3e0 PP |
1 | /* |
2 | * Copyright 2019 Philippe Proulx <pproulx@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 | #define BT_LOG_TAG "PLUGIN-CTF-FS-SINK-TRANSLATE-TRACE-IR-TO-CTF-IR" | |
24 | #include "logging.h" | |
25 | ||
26 | #include <babeltrace/babeltrace.h> | |
27 | #include <babeltrace/babeltrace-internal.h> | |
28 | #include <babeltrace/common-internal.h> | |
29 | #include <babeltrace/assert-internal.h> | |
30 | #include <stdio.h> | |
31 | #include <stdbool.h> | |
32 | #include <string.h> | |
33 | #include <glib.h> | |
34 | ||
35 | #include "fs-sink-ctf-meta.h" | |
36 | ||
37 | struct field_path_elem { | |
38 | uint64_t index_in_parent; | |
39 | GString *name; | |
40 | ||
41 | /* Weak */ | |
42 | const bt_field_class *ir_fc; | |
43 | ||
44 | /* Weak */ | |
45 | struct fs_sink_ctf_field_class *parent_fc; | |
46 | }; | |
47 | ||
48 | struct ctx { | |
49 | /* Weak */ | |
50 | struct fs_sink_ctf_stream_class *cur_sc; | |
51 | ||
52 | /* Weak */ | |
53 | struct fs_sink_ctf_event_class *cur_ec; | |
54 | ||
55 | bt_scope cur_scope; | |
56 | ||
57 | /* | |
58 | * Array of `struct field_path_elem` */ | |
59 | GArray *cur_path; | |
60 | }; | |
61 | ||
62 | static inline | |
63 | struct field_path_elem *cur_path_stack_at(struct ctx *ctx, uint64_t i) | |
64 | { | |
65 | BT_ASSERT(i < ctx->cur_path->len); | |
66 | return &g_array_index(ctx->cur_path, struct field_path_elem, i); | |
67 | } | |
68 | ||
69 | static inline | |
70 | struct field_path_elem *cur_path_stack_top(struct ctx *ctx) | |
71 | { | |
72 | BT_ASSERT(ctx->cur_path->len > 0); | |
73 | return cur_path_stack_at(ctx, ctx->cur_path->len - 1); | |
74 | } | |
75 | ||
76 | static inline | |
77 | bool is_reserved_member_name(const char *name, const char *reserved_name) | |
78 | { | |
79 | bool is_reserved = false; | |
80 | ||
81 | if (strcmp(name, reserved_name) == 0) { | |
82 | is_reserved = true; | |
83 | goto end; | |
84 | } | |
85 | ||
86 | if (name[0] == '_' && strcmp(&name[1], reserved_name) == 0) { | |
87 | is_reserved = true; | |
88 | goto end; | |
89 | } | |
90 | ||
91 | end: | |
92 | return is_reserved; | |
93 | } | |
94 | ||
95 | static inline | |
96 | int cur_path_stack_push(struct ctx *ctx, | |
97 | uint64_t index_in_parent, const char *ir_name, | |
98 | const bt_field_class *ir_fc, | |
99 | struct fs_sink_ctf_field_class *parent_fc) | |
100 | { | |
101 | int ret = 0; | |
102 | struct field_path_elem *field_path_elem; | |
103 | ||
104 | g_array_set_size(ctx->cur_path, ctx->cur_path->len + 1); | |
105 | field_path_elem = cur_path_stack_top(ctx); | |
106 | field_path_elem->index_in_parent = index_in_parent; | |
107 | field_path_elem->name = g_string_new(ir_name); | |
108 | ||
109 | if (ir_name) { | |
110 | if (ctx->cur_scope == BT_SCOPE_PACKET_CONTEXT) { | |
111 | if (is_reserved_member_name(ir_name, "packet_size") || | |
112 | is_reserved_member_name(ir_name, "content_size") || | |
113 | is_reserved_member_name(ir_name, "timestamp_begin") || | |
114 | is_reserved_member_name(ir_name, "timestamp_end") || | |
115 | is_reserved_member_name(ir_name, "events_discarded") || | |
116 | is_reserved_member_name(ir_name, "packet_seq_num")) { | |
117 | BT_LOGE("Unsupported reserved TSDL structure field class member " | |
118 | "or variant field class option name: name=\"%s\"", | |
119 | ir_name); | |
120 | ret = -1; | |
121 | goto end; | |
122 | } | |
123 | } | |
124 | ||
125 | ret = fs_sink_ctf_protect_name(field_path_elem->name); | |
126 | if (ret) { | |
127 | BT_LOGE("Unsupported non-TSDL structure field class member " | |
128 | "or variant field class option name: name=\"%s\"", | |
129 | ir_name); | |
130 | goto end; | |
131 | } | |
132 | } | |
133 | ||
134 | field_path_elem->ir_fc = ir_fc; | |
135 | field_path_elem->parent_fc = parent_fc; | |
136 | ||
137 | end: | |
138 | return ret; | |
139 | } | |
140 | ||
141 | static inline | |
142 | void cur_path_stack_pop(struct ctx *ctx) | |
143 | { | |
144 | struct field_path_elem *field_path_elem; | |
145 | ||
146 | BT_ASSERT(ctx->cur_path->len > 0); | |
147 | field_path_elem = cur_path_stack_top(ctx); | |
148 | ||
149 | if (field_path_elem->name) { | |
150 | g_string_free(field_path_elem->name, TRUE); | |
151 | field_path_elem->name = NULL; | |
152 | } | |
153 | ||
154 | g_array_set_size(ctx->cur_path, ctx->cur_path->len - 1); | |
155 | } | |
156 | ||
157 | static inline | |
158 | struct field_path_elem *get_field_path_elem( | |
159 | GArray *full_field_path, uint64_t i) | |
160 | { | |
161 | return &g_array_index(full_field_path, struct field_path_elem, | |
162 | i); | |
163 | } | |
164 | ||
165 | ||
166 | /* | |
167 | * Creates a relative field ref (a single name) from IR field path | |
168 | * `tgt_ir_field_path`. | |
169 | * | |
170 | * This function tries to locate the target field class recursively from | |
171 | * the top to the bottom of the context's current path using only the | |
172 | * target field class's own name. This is because many CTF reading tools | |
173 | * do not support a relative field ref with more than one element, for | |
174 | * example `prev_struct.len`. | |
175 | * | |
176 | * Returns a negative value if this resolving operation failed. | |
177 | */ | |
178 | static | |
179 | int create_relative_field_ref(struct ctx *ctx, | |
180 | const bt_field_path *tgt_ir_field_path, GString *tgt_field_ref) | |
181 | { | |
182 | int ret = 0; | |
183 | struct fs_sink_ctf_field_class *tgt_fc = NULL; | |
184 | uint64_t i; | |
185 | int64_t si; | |
186 | const char *tgt_fc_name; | |
187 | struct field_path_elem *field_path_elem; | |
188 | ||
189 | /* Get target field class's name */ | |
190 | switch (bt_field_path_get_root_scope(tgt_ir_field_path)) { | |
191 | case BT_SCOPE_PACKET_CONTEXT: | |
192 | BT_ASSERT(ctx->cur_sc); | |
193 | tgt_fc = ctx->cur_sc->packet_context_fc; | |
194 | break; | |
195 | case BT_SCOPE_EVENT_COMMON_CONTEXT: | |
196 | BT_ASSERT(ctx->cur_sc); | |
197 | tgt_fc = ctx->cur_sc->event_common_context_fc; | |
198 | break; | |
199 | case BT_SCOPE_EVENT_SPECIFIC_CONTEXT: | |
200 | BT_ASSERT(ctx->cur_ec); | |
201 | tgt_fc = ctx->cur_ec->spec_context_fc; | |
202 | break; | |
203 | case BT_SCOPE_EVENT_PAYLOAD: | |
204 | BT_ASSERT(ctx->cur_ec); | |
205 | tgt_fc = ctx->cur_ec->payload_fc; | |
206 | break; | |
207 | default: | |
208 | abort(); | |
209 | } | |
210 | ||
211 | i = 0; | |
212 | ||
213 | while (i < bt_field_path_get_index_count(tgt_ir_field_path)) { | |
214 | uint64_t index = bt_field_path_get_index_by_index( | |
215 | tgt_ir_field_path, i); | |
216 | struct fs_sink_ctf_named_field_class *named_fc = NULL; | |
217 | ||
218 | BT_ASSERT(tgt_fc); | |
219 | ||
220 | switch (tgt_fc->type) { | |
221 | case FS_SINK_CTF_FIELD_CLASS_TYPE_STRUCT: | |
222 | named_fc = fs_sink_ctf_field_class_struct_borrow_member_by_index( | |
223 | (void *) tgt_fc, index); | |
224 | break; | |
225 | case FS_SINK_CTF_FIELD_CLASS_TYPE_VARIANT: | |
226 | named_fc = fs_sink_ctf_field_class_variant_borrow_option_by_index( | |
227 | (void *) tgt_fc, index); | |
228 | break; | |
229 | case FS_SINK_CTF_FIELD_CLASS_TYPE_ARRAY: | |
230 | case FS_SINK_CTF_FIELD_CLASS_TYPE_SEQUENCE: | |
231 | { | |
232 | struct fs_sink_ctf_field_class_array_base *array_base_fc = | |
233 | (void *) tgt_fc; | |
234 | ||
235 | tgt_fc = array_base_fc->elem_fc; | |
236 | break; | |
237 | } | |
238 | default: | |
239 | abort(); | |
240 | } | |
241 | ||
242 | if (named_fc) { | |
243 | tgt_fc = named_fc->fc; | |
244 | tgt_fc_name = named_fc->name->str; | |
245 | i++; | |
246 | } | |
247 | } | |
248 | ||
249 | BT_ASSERT(tgt_fc); | |
250 | BT_ASSERT(tgt_fc->type == FS_SINK_CTF_FIELD_CLASS_TYPE_INT); | |
251 | BT_ASSERT(tgt_fc_name); | |
252 | ||
253 | /* Find target field class having this name in current context */ | |
254 | for (si = ctx->cur_path->len - 1; si >= 0; si--) { | |
255 | struct fs_sink_ctf_field_class *fc; | |
256 | struct fs_sink_ctf_field_class_struct *struct_fc; | |
257 | struct fs_sink_ctf_field_class_variant *var_fc; | |
258 | struct fs_sink_ctf_named_field_class *named_fc; | |
259 | uint64_t len; | |
260 | ||
261 | field_path_elem = cur_path_stack_at(ctx, (uint64_t) si); | |
262 | fc = field_path_elem->parent_fc; | |
263 | if (!fc) { | |
264 | /* Reached stack's bottom */ | |
265 | ret = -1; | |
266 | goto end; | |
267 | } | |
268 | ||
269 | switch (fc->type) { | |
270 | case FS_SINK_CTF_FIELD_CLASS_TYPE_STRUCT: | |
271 | case FS_SINK_CTF_FIELD_CLASS_TYPE_VARIANT: | |
272 | break; | |
273 | case FS_SINK_CTF_FIELD_CLASS_TYPE_ARRAY: | |
274 | case FS_SINK_CTF_FIELD_CLASS_TYPE_SEQUENCE: | |
275 | continue; | |
276 | default: | |
277 | /* Not supported by TSDL 1.8 */ | |
278 | ret = -1; | |
279 | goto end; | |
280 | } | |
281 | ||
282 | if (fc->type == FS_SINK_CTF_FIELD_CLASS_TYPE_STRUCT) { | |
283 | struct_fc = (void *) fc; | |
284 | len = struct_fc->members->len; | |
285 | } else { | |
286 | var_fc = (void *) fc; | |
287 | len = var_fc->options->len; | |
288 | } | |
289 | ||
290 | for (i = 0; i < len; i++) { | |
291 | if (fc->type == FS_SINK_CTF_FIELD_CLASS_TYPE_STRUCT) { | |
292 | named_fc = fs_sink_ctf_field_class_struct_borrow_member_by_index( | |
293 | struct_fc, i); | |
294 | } else { | |
295 | named_fc = fs_sink_ctf_field_class_variant_borrow_option_by_index( | |
296 | var_fc, i); | |
297 | } | |
298 | ||
299 | if (strcmp(named_fc->name->str, tgt_fc_name) == 0) { | |
300 | if (named_fc->fc == tgt_fc) { | |
301 | g_string_assign(tgt_field_ref, | |
302 | tgt_fc_name); | |
303 | } else { | |
304 | /* | |
305 | * Using only the target field | |
306 | * class's name, we're not | |
307 | * reaching the target field | |
308 | * class. This is not supported | |
309 | * by TSDL 1.8. | |
310 | */ | |
311 | ret = -1; | |
312 | } | |
313 | ||
314 | goto end; | |
315 | } | |
316 | } | |
317 | } | |
318 | ||
319 | end: | |
320 | return ret; | |
321 | } | |
322 | ||
323 | /* | |
324 | * Creates an absolute field ref from IR field path `tgt_ir_field_path`. | |
325 | * | |
326 | * Returns a negative value if this resolving operation failed. | |
327 | */ | |
328 | static | |
329 | int create_absolute_field_ref(struct ctx *ctx, | |
330 | const bt_field_path *tgt_ir_field_path, GString *tgt_field_ref) | |
331 | { | |
332 | int ret = 0; | |
333 | struct fs_sink_ctf_field_class *fc = NULL; | |
334 | uint64_t i; | |
335 | ||
336 | switch (bt_field_path_get_root_scope(tgt_ir_field_path)) { | |
337 | case BT_SCOPE_PACKET_CONTEXT: | |
338 | BT_ASSERT(ctx->cur_sc); | |
339 | fc = ctx->cur_sc->packet_context_fc; | |
340 | g_string_assign(tgt_field_ref, "stream.packet.context"); | |
341 | break; | |
342 | case BT_SCOPE_EVENT_COMMON_CONTEXT: | |
343 | BT_ASSERT(ctx->cur_sc); | |
344 | fc = ctx->cur_sc->event_common_context_fc; | |
345 | g_string_assign(tgt_field_ref, "stream.event.context"); | |
346 | break; | |
347 | case BT_SCOPE_EVENT_SPECIFIC_CONTEXT: | |
348 | BT_ASSERT(ctx->cur_ec); | |
349 | fc = ctx->cur_ec->spec_context_fc; | |
350 | g_string_assign(tgt_field_ref, "event.context"); | |
351 | break; | |
352 | case BT_SCOPE_EVENT_PAYLOAD: | |
353 | BT_ASSERT(ctx->cur_ec); | |
354 | fc = ctx->cur_ec->payload_fc; | |
355 | g_string_assign(tgt_field_ref, "event.fields"); | |
356 | break; | |
357 | default: | |
358 | abort(); | |
359 | } | |
360 | ||
361 | BT_ASSERT(fc); | |
362 | ||
363 | for (i = 0; i < bt_field_path_get_index_count(tgt_ir_field_path); i++) { | |
364 | uint64_t index = bt_field_path_get_index_by_index( | |
365 | tgt_ir_field_path, i); | |
366 | struct fs_sink_ctf_named_field_class *named_fc = NULL; | |
367 | ||
368 | switch (fc->type) { | |
369 | case FS_SINK_CTF_FIELD_CLASS_TYPE_STRUCT: | |
370 | named_fc = fs_sink_ctf_field_class_struct_borrow_member_by_index( | |
371 | (void *) fc, index); | |
372 | break; | |
373 | case FS_SINK_CTF_FIELD_CLASS_TYPE_VARIANT: | |
374 | named_fc = fs_sink_ctf_field_class_variant_borrow_option_by_index( | |
375 | (void *) fc, index); | |
376 | break; | |
377 | case FS_SINK_CTF_FIELD_CLASS_TYPE_ARRAY: | |
378 | case FS_SINK_CTF_FIELD_CLASS_TYPE_SEQUENCE: | |
379 | /* Not supported by TSDL 1.8 */ | |
380 | ret = -1; | |
381 | goto end; | |
382 | default: | |
383 | abort(); | |
384 | } | |
385 | ||
386 | BT_ASSERT(named_fc); | |
387 | g_string_append_c(tgt_field_ref, '.'); | |
388 | g_string_append(tgt_field_ref, named_fc->name->str); | |
389 | fc = named_fc->fc; | |
390 | } | |
391 | ||
392 | end: | |
393 | return ret; | |
394 | } | |
395 | ||
396 | /* | |
397 | * Resolves a target field class located at `tgt_ir_field_path`, writing | |
398 | * the resolved field ref to `tgt_field_ref` and setting | |
399 | * `*create_before` according to whether or not the target field must be | |
400 | * created immediately before (in which case `tgt_field_ref` is | |
401 | * irrelevant). | |
402 | */ | |
403 | static | |
404 | void resolve_field_class(struct ctx *ctx, | |
405 | const bt_field_path *tgt_ir_field_path, | |
406 | GString *tgt_field_ref, bool *create_before) | |
407 | { | |
408 | int ret; | |
409 | bt_scope tgt_scope; | |
410 | ||
411 | *create_before = false; | |
412 | ||
413 | if (!tgt_ir_field_path) { | |
414 | *create_before = true; | |
415 | goto end; | |
416 | } | |
417 | ||
418 | tgt_scope = bt_field_path_get_root_scope(tgt_ir_field_path); | |
419 | ||
420 | if (tgt_scope == ctx->cur_scope) { | |
421 | /* | |
422 | * Try, in this order: | |
423 | * | |
424 | * 1. Use a relative path, using only the target field | |
425 | * class's name. This is what is the most commonly | |
426 | * supported by popular CTF reading tools. | |
427 | * | |
428 | * 2. Use an absolute path. This could fail if there's | |
429 | * an array field class from the current root's field | |
430 | * class to the target field class. | |
431 | * | |
432 | * 3. Create the target field class before the | |
433 | * requesting field class (fallback). | |
434 | */ | |
435 | ret = create_relative_field_ref(ctx, tgt_ir_field_path, | |
436 | tgt_field_ref); | |
437 | if (ret) { | |
438 | ret = create_absolute_field_ref(ctx, tgt_ir_field_path, | |
439 | tgt_field_ref); | |
440 | if (ret) { | |
441 | *create_before = true; | |
442 | ret = 0; | |
443 | goto end; | |
444 | } | |
445 | } | |
446 | } else { | |
447 | ret = create_absolute_field_ref(ctx, tgt_ir_field_path, | |
448 | tgt_field_ref); | |
449 | ||
450 | /* It must always work in previous scopes */ | |
451 | BT_ASSERT(ret == 0); | |
452 | } | |
453 | ||
454 | end: | |
455 | return; | |
456 | } | |
457 | ||
458 | static | |
459 | int translate_field_class(struct ctx *ctx); | |
460 | ||
461 | static inline | |
462 | void append_to_parent_field_class(struct ctx *ctx, | |
463 | struct fs_sink_ctf_field_class *fc) | |
464 | { | |
465 | struct fs_sink_ctf_field_class *parent_fc = | |
466 | cur_path_stack_top(ctx)->parent_fc; | |
467 | ||
468 | switch (parent_fc->type) { | |
469 | case FS_SINK_CTF_FIELD_CLASS_TYPE_STRUCT: | |
470 | fs_sink_ctf_field_class_struct_append_member((void *) parent_fc, | |
471 | cur_path_stack_top(ctx)->name->str, fc); | |
472 | break; | |
473 | case FS_SINK_CTF_FIELD_CLASS_TYPE_VARIANT: | |
474 | fs_sink_ctf_field_class_variant_append_option((void *) parent_fc, | |
475 | cur_path_stack_top(ctx)->name->str, fc); | |
476 | break; | |
477 | case FS_SINK_CTF_FIELD_CLASS_TYPE_ARRAY: | |
478 | case FS_SINK_CTF_FIELD_CLASS_TYPE_SEQUENCE: | |
479 | { | |
480 | struct fs_sink_ctf_field_class_array_base *array_base_fc = | |
481 | (void *) parent_fc; | |
482 | ||
483 | BT_ASSERT(!array_base_fc->elem_fc); | |
484 | array_base_fc->elem_fc = fc; | |
485 | array_base_fc->base.alignment = fc->alignment; | |
486 | break; | |
487 | } | |
488 | default: | |
489 | abort(); | |
490 | } | |
491 | } | |
492 | ||
493 | static inline | |
494 | void update_parent_field_class_alignment(struct ctx *ctx, | |
495 | unsigned int alignment) | |
496 | { | |
497 | struct fs_sink_ctf_field_class *parent_fc = | |
498 | cur_path_stack_top(ctx)->parent_fc; | |
499 | ||
500 | switch (parent_fc->type) { | |
501 | case FS_SINK_CTF_FIELD_CLASS_TYPE_STRUCT: | |
502 | fs_sink_ctf_field_class_struct_align_at_least( | |
503 | (void *) parent_fc, alignment); | |
504 | break; | |
505 | case FS_SINK_CTF_FIELD_CLASS_TYPE_ARRAY: | |
506 | case FS_SINK_CTF_FIELD_CLASS_TYPE_SEQUENCE: | |
507 | { | |
508 | struct fs_sink_ctf_field_class_array_base *array_base_fc = | |
509 | (void *) parent_fc; | |
510 | ||
511 | array_base_fc->base.alignment = alignment; | |
512 | break; | |
513 | } | |
514 | default: | |
515 | break; | |
516 | } | |
517 | } | |
518 | ||
519 | static inline | |
520 | int translate_structure_field_class_members(struct ctx *ctx, | |
521 | struct fs_sink_ctf_field_class_struct *struct_fc, | |
522 | const bt_field_class *ir_fc) | |
523 | { | |
524 | int ret = 0; | |
525 | uint64_t i; | |
526 | ||
527 | for (i = 0; i < bt_field_class_structure_get_member_count(ir_fc); i++) { | |
528 | const bt_field_class_structure_member *member; | |
529 | const char *name; | |
530 | const bt_field_class *memb_ir_fc; | |
531 | ||
532 | member = | |
533 | bt_field_class_structure_borrow_member_by_index_const( | |
534 | ir_fc, i); | |
535 | name = bt_field_class_structure_member_get_name(member); | |
536 | memb_ir_fc = bt_field_class_structure_member_borrow_field_class_const( | |
537 | member); | |
538 | ret = cur_path_stack_push(ctx, i, name, memb_ir_fc, | |
539 | (void *) struct_fc); | |
540 | if (ret) { | |
541 | BT_LOGE("Cannot translate structure field class member: " | |
542 | "name=\"%s\"", name); | |
543 | goto end; | |
544 | } | |
545 | ||
546 | ret = translate_field_class(ctx); | |
547 | if (ret) { | |
548 | BT_LOGE("Cannot translate structure field class member: " | |
549 | "name=\"%s\"", name); | |
550 | goto end; | |
551 | } | |
552 | ||
553 | cur_path_stack_pop(ctx); | |
554 | } | |
555 | ||
556 | end: | |
557 | return ret; | |
558 | } | |
559 | ||
560 | static inline | |
561 | int translate_structure_field_class(struct ctx *ctx) | |
562 | { | |
563 | int ret; | |
564 | struct fs_sink_ctf_field_class_struct *fc = | |
565 | fs_sink_ctf_field_class_struct_create_empty( | |
566 | cur_path_stack_top(ctx)->ir_fc, | |
567 | cur_path_stack_top(ctx)->index_in_parent); | |
568 | ||
569 | BT_ASSERT(fc); | |
570 | append_to_parent_field_class(ctx, (void *) fc); | |
571 | ret = translate_structure_field_class_members(ctx, fc, fc->base.ir_fc); | |
572 | if (ret) { | |
573 | goto end; | |
574 | } | |
575 | ||
576 | update_parent_field_class_alignment(ctx, fc->base.alignment); | |
577 | ||
578 | end: | |
579 | return ret; | |
580 | } | |
581 | ||
582 | static inline | |
583 | int translate_variant_field_class(struct ctx *ctx) | |
584 | { | |
585 | int ret = 0; | |
586 | uint64_t i; | |
587 | struct fs_sink_ctf_field_class_variant *fc = | |
588 | fs_sink_ctf_field_class_variant_create_empty( | |
589 | cur_path_stack_top(ctx)->ir_fc, | |
590 | cur_path_stack_top(ctx)->index_in_parent); | |
591 | ||
592 | BT_ASSERT(fc); | |
593 | ||
594 | /* Resolve tag field class before appending to parent */ | |
595 | resolve_field_class(ctx, | |
596 | bt_field_class_variant_borrow_selector_field_path_const( | |
597 | fc->base.ir_fc), fc->tag_ref, &fc->tag_is_before); | |
598 | ||
599 | append_to_parent_field_class(ctx, (void *) fc); | |
600 | ||
601 | for (i = 0; i < bt_field_class_variant_get_option_count(fc->base.ir_fc); | |
602 | i++) { | |
603 | const bt_field_class_variant_option *opt; | |
604 | const char *name; | |
605 | const bt_field_class *opt_ir_fc; | |
606 | ||
607 | opt = bt_field_class_variant_borrow_option_by_index_const( | |
608 | fc->base.ir_fc, i); | |
609 | name = bt_field_class_variant_option_get_name(opt); | |
610 | opt_ir_fc = bt_field_class_variant_option_borrow_field_class_const( | |
611 | opt); | |
612 | ret = cur_path_stack_push(ctx, i, name, opt_ir_fc, (void *) fc); | |
613 | if (ret) { | |
614 | BT_LOGE("Cannot translate variant field class option: " | |
615 | "name=\"%s\"", name); | |
616 | goto end; | |
617 | } | |
618 | ||
619 | ret = translate_field_class(ctx); | |
620 | if (ret) { | |
621 | BT_LOGE("Cannot translate variant field class option: " | |
622 | "name=\"%s\"", name); | |
623 | goto end; | |
624 | } | |
625 | ||
626 | cur_path_stack_pop(ctx); | |
627 | } | |
628 | ||
629 | end: | |
630 | return ret; | |
631 | } | |
632 | ||
633 | static inline | |
634 | int translate_static_array_field_class(struct ctx *ctx) | |
635 | { | |
636 | struct fs_sink_ctf_field_class_array *fc = | |
637 | fs_sink_ctf_field_class_array_create_empty( | |
638 | cur_path_stack_top(ctx)->ir_fc, | |
639 | cur_path_stack_top(ctx)->index_in_parent); | |
640 | const bt_field_class *elem_ir_fc = | |
641 | bt_field_class_array_borrow_element_field_class_const( | |
642 | fc->base.base.ir_fc); | |
643 | int ret; | |
644 | ||
645 | BT_ASSERT(fc); | |
646 | append_to_parent_field_class(ctx, (void *) fc); | |
647 | ret = cur_path_stack_push(ctx, UINT64_C(-1), NULL, elem_ir_fc, | |
648 | (void *) fc); | |
649 | if (ret) { | |
650 | BT_LOGE_STR("Cannot translate static array field class element."); | |
651 | goto end; | |
652 | } | |
653 | ||
654 | ret = translate_field_class(ctx); | |
655 | if (ret) { | |
656 | BT_LOGE_STR("Cannot translate static array field class element."); | |
657 | goto end; | |
658 | } | |
659 | ||
660 | cur_path_stack_pop(ctx); | |
661 | update_parent_field_class_alignment(ctx, fc->base.base.alignment); | |
662 | ||
663 | end: | |
664 | return ret; | |
665 | } | |
666 | ||
667 | static inline | |
668 | int translate_dynamic_array_field_class(struct ctx *ctx) | |
669 | { | |
670 | struct fs_sink_ctf_field_class_sequence *fc = | |
671 | fs_sink_ctf_field_class_sequence_create_empty( | |
672 | cur_path_stack_top(ctx)->ir_fc, | |
673 | cur_path_stack_top(ctx)->index_in_parent); | |
674 | const bt_field_class *elem_ir_fc = | |
675 | bt_field_class_array_borrow_element_field_class_const( | |
676 | fc->base.base.ir_fc); | |
677 | int ret; | |
678 | ||
679 | BT_ASSERT(fc); | |
680 | ||
681 | /* Resolve length field class before appending to parent */ | |
682 | resolve_field_class(ctx, | |
683 | bt_field_class_dynamic_array_borrow_length_field_path_const( | |
684 | fc->base.base.ir_fc), | |
685 | fc->length_ref, &fc->length_is_before); | |
686 | ||
687 | append_to_parent_field_class(ctx, (void *) fc); | |
688 | ret = cur_path_stack_push(ctx, UINT64_C(-1), NULL, elem_ir_fc, | |
689 | (void *) fc); | |
690 | if (ret) { | |
691 | BT_LOGE_STR("Cannot translate dynamic array field class element."); | |
692 | goto end; | |
693 | } | |
694 | ||
695 | ret = translate_field_class(ctx); | |
696 | if (ret) { | |
697 | BT_LOGE_STR("Cannot translate dynamic array field class element."); | |
698 | goto end; | |
699 | } | |
700 | ||
701 | cur_path_stack_pop(ctx); | |
702 | update_parent_field_class_alignment(ctx, fc->base.base.alignment); | |
703 | ||
704 | end: | |
705 | return ret; | |
706 | } | |
707 | ||
708 | static inline | |
709 | int translate_integer_field_class(struct ctx *ctx) | |
710 | { | |
711 | struct fs_sink_ctf_field_class_int *fc = | |
712 | fs_sink_ctf_field_class_int_create( | |
713 | cur_path_stack_top(ctx)->ir_fc, | |
714 | cur_path_stack_top(ctx)->index_in_parent); | |
715 | ||
716 | BT_ASSERT(fc); | |
717 | append_to_parent_field_class(ctx, (void *) fc); | |
718 | return 0; | |
719 | } | |
720 | ||
721 | static inline | |
722 | int translate_real_field_class(struct ctx *ctx) | |
723 | { | |
724 | struct fs_sink_ctf_field_class_float *fc = | |
725 | fs_sink_ctf_field_class_float_create( | |
726 | cur_path_stack_top(ctx)->ir_fc, | |
727 | cur_path_stack_top(ctx)->index_in_parent); | |
728 | ||
729 | BT_ASSERT(fc); | |
730 | append_to_parent_field_class(ctx, (void *) fc); | |
731 | return 0; | |
732 | } | |
733 | ||
734 | static inline | |
735 | int translate_string_field_class(struct ctx *ctx) | |
736 | { | |
737 | struct fs_sink_ctf_field_class_string *fc = | |
738 | fs_sink_ctf_field_class_string_create( | |
739 | cur_path_stack_top(ctx)->ir_fc, | |
740 | cur_path_stack_top(ctx)->index_in_parent); | |
741 | ||
742 | BT_ASSERT(fc); | |
743 | append_to_parent_field_class(ctx, (void *) fc); | |
744 | return 0; | |
745 | } | |
746 | ||
747 | /* | |
748 | * Translates a field class, recursively. | |
749 | * | |
750 | * The field class's IR field class, parent field class, and index | |
751 | * within its parent are in the context's current path's top element | |
752 | * (cur_path_stack_top()). | |
753 | */ | |
754 | static | |
755 | int translate_field_class(struct ctx *ctx) | |
756 | { | |
757 | int ret; | |
758 | ||
759 | switch (bt_field_class_get_type(cur_path_stack_top(ctx)->ir_fc)) { | |
760 | case BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER: | |
761 | case BT_FIELD_CLASS_TYPE_SIGNED_INTEGER: | |
762 | case BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION: | |
763 | case BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION: | |
764 | ret = translate_integer_field_class(ctx); | |
765 | break; | |
766 | case BT_FIELD_CLASS_TYPE_REAL: | |
767 | ret = translate_real_field_class(ctx); | |
768 | break; | |
769 | case BT_FIELD_CLASS_TYPE_STRING: | |
770 | ret = translate_string_field_class(ctx); | |
771 | break; | |
772 | case BT_FIELD_CLASS_TYPE_STRUCTURE: | |
773 | ret = translate_structure_field_class(ctx); | |
774 | break; | |
775 | case BT_FIELD_CLASS_TYPE_STATIC_ARRAY: | |
776 | ret = translate_static_array_field_class(ctx); | |
777 | break; | |
778 | case BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY: | |
779 | ret = translate_dynamic_array_field_class(ctx); | |
780 | break; | |
781 | case BT_FIELD_CLASS_TYPE_VARIANT: | |
782 | ret = translate_variant_field_class(ctx); | |
783 | break; | |
784 | default: | |
785 | abort(); | |
786 | } | |
787 | ||
788 | return ret; | |
789 | } | |
790 | ||
791 | static | |
792 | int set_field_ref(struct fs_sink_ctf_field_class *fc, const char *fc_name, | |
793 | struct fs_sink_ctf_field_class *parent_fc) | |
794 | { | |
795 | int ret = 0; | |
796 | GString *field_ref = NULL; | |
797 | bool is_before; | |
798 | const char *tgt_type; | |
799 | struct fs_sink_ctf_field_class_struct *parent_struct_fc = | |
800 | (void *) parent_fc; | |
801 | uint64_t i; | |
802 | unsigned int suffix = 0; | |
803 | ||
804 | if (!fc_name || !parent_fc || | |
805 | parent_fc->type != FS_SINK_CTF_FIELD_CLASS_TYPE_STRUCT) { | |
806 | /* Not supported */ | |
807 | ret = -1; | |
808 | goto end; | |
809 | } | |
810 | ||
811 | switch (fc->type) { | |
812 | case FS_SINK_CTF_FIELD_CLASS_TYPE_SEQUENCE: | |
813 | { | |
814 | struct fs_sink_ctf_field_class_sequence *seq_fc = (void *) fc; | |
815 | ||
816 | field_ref = seq_fc->length_ref; | |
817 | is_before = seq_fc->length_is_before; | |
818 | tgt_type = "len"; | |
819 | break; | |
820 | } | |
821 | case FS_SINK_CTF_FIELD_CLASS_TYPE_VARIANT: | |
822 | { | |
823 | struct fs_sink_ctf_field_class_variant *var_fc = (void *) fc; | |
824 | ||
825 | field_ref = var_fc->tag_ref; | |
826 | is_before = var_fc->tag_is_before; | |
827 | tgt_type = "tag"; | |
828 | break; | |
829 | } | |
830 | default: | |
831 | abort(); | |
832 | } | |
833 | ||
834 | BT_ASSERT(field_ref); | |
835 | ||
836 | if (!is_before) { | |
837 | goto end; | |
838 | } | |
839 | ||
840 | /* Initial field ref */ | |
841 | g_string_printf(field_ref, "__%s_%s", fc_name, tgt_type); | |
842 | ||
843 | /* | |
844 | * Make sure field ref does not clash with an existing field | |
845 | * class name within the same parent structure field class. | |
846 | */ | |
847 | while (true) { | |
848 | bool name_ok = true; | |
849 | ||
850 | for (i = 0; i < parent_struct_fc->members->len; i++) { | |
851 | struct fs_sink_ctf_named_field_class *named_fc = | |
852 | fs_sink_ctf_field_class_struct_borrow_member_by_index( | |
853 | parent_struct_fc, i); | |
854 | ||
855 | if (strcmp(field_ref->str, named_fc->name->str) == 0) { | |
856 | /* Name clash */ | |
857 | name_ok = false; | |
858 | break; | |
859 | } | |
860 | } | |
861 | ||
862 | if (name_ok) { | |
863 | /* No clash: we're done */ | |
864 | break; | |
865 | } | |
866 | ||
867 | /* Append suffix and try again */ | |
868 | g_string_printf(field_ref, "__%s_%s_%u", fc_name, tgt_type, | |
869 | suffix); | |
870 | suffix++; | |
871 | } | |
872 | ||
873 | end: | |
874 | return ret; | |
875 | } | |
876 | ||
877 | /* | |
878 | * This function recursively sets field refs of sequence and variant | |
879 | * field classes when they are immediately before, avoiding name clashes | |
880 | * with existing field class names. | |
881 | * | |
882 | * It can fail at this point if, for example, a sequence field class of | |
883 | * which to set the length's field ref has something else than a | |
884 | * structure field class as its parent: in this case, there's no | |
885 | * location to place the length field class immediately before the | |
886 | * sequence field class. | |
887 | */ | |
888 | static | |
889 | int set_field_refs(struct fs_sink_ctf_field_class *fc, const char *fc_name, | |
890 | struct fs_sink_ctf_field_class *parent_fc) | |
891 | { | |
892 | int ret = 0; | |
893 | BT_ASSERT(fc); | |
894 | ||
895 | switch (fc->type) { | |
896 | case FS_SINK_CTF_FIELD_CLASS_TYPE_STRUCT: | |
897 | case FS_SINK_CTF_FIELD_CLASS_TYPE_VARIANT: | |
898 | { | |
899 | uint64_t i; | |
900 | uint64_t len; | |
901 | struct fs_sink_ctf_field_class_struct *struct_fc; | |
902 | struct fs_sink_ctf_field_class_variant *var_fc; | |
903 | struct fs_sink_ctf_named_field_class *named_fc; | |
904 | ||
905 | if (fc->type == FS_SINK_CTF_FIELD_CLASS_TYPE_STRUCT) { | |
906 | struct_fc = (void *) fc; | |
907 | len = struct_fc->members->len; | |
908 | } else { | |
909 | var_fc = (void *) fc; | |
910 | len = var_fc->options->len; | |
911 | ret = set_field_ref(fc, fc_name, parent_fc); | |
912 | if (ret) { | |
913 | goto end; | |
914 | } | |
915 | } | |
916 | ||
917 | for (i = 0; i < len; i++) { | |
918 | if (fc->type == FS_SINK_CTF_FIELD_CLASS_TYPE_STRUCT) { | |
919 | named_fc = fs_sink_ctf_field_class_struct_borrow_member_by_index( | |
920 | struct_fc, i); | |
921 | } else { | |
922 | named_fc = fs_sink_ctf_field_class_variant_borrow_option_by_index( | |
923 | var_fc, i); | |
924 | } | |
925 | ||
926 | ret = set_field_refs(named_fc->fc, named_fc->name->str, | |
927 | fc); | |
928 | if (ret) { | |
929 | goto end; | |
930 | } | |
931 | } | |
932 | ||
933 | break; | |
934 | } | |
935 | case FS_SINK_CTF_FIELD_CLASS_TYPE_ARRAY: | |
936 | case FS_SINK_CTF_FIELD_CLASS_TYPE_SEQUENCE: | |
937 | { | |
938 | struct fs_sink_ctf_field_class_array_base *array_base_fc = | |
939 | (void *) fc; | |
940 | ||
941 | if (fc->type == FS_SINK_CTF_FIELD_CLASS_TYPE_SEQUENCE) { | |
942 | ret = set_field_ref(fc, fc_name, parent_fc); | |
943 | if (ret) { | |
944 | goto end; | |
945 | } | |
946 | } | |
947 | ||
948 | ret = set_field_refs(array_base_fc->elem_fc, NULL, fc); | |
949 | if (ret) { | |
950 | goto end; | |
951 | } | |
952 | ||
953 | break; | |
954 | } | |
955 | default: | |
956 | break; | |
957 | } | |
958 | ||
959 | end: | |
960 | return ret; | |
961 | } | |
962 | ||
963 | /* | |
964 | * This function translates a root scope trace IR field class to | |
965 | * a CTF IR field class. | |
966 | * | |
967 | * The resulting CTF IR field class is written to `*fc` so that it | |
968 | * exists as the parent object's (stream class or event class) true root | |
969 | * field class during the recursive translation for resolving purposes. | |
970 | * This is also why this function creates the empty structure field | |
971 | * class and then calls translate_structure_field_class_members() to | |
972 | * fill it. | |
973 | */ | |
974 | static | |
975 | int translate_scope_field_class(struct ctx *ctx, bt_scope scope, | |
976 | struct fs_sink_ctf_field_class **fc, | |
977 | const bt_field_class *ir_fc) | |
978 | { | |
979 | int ret = 0; | |
980 | ||
981 | if (!ir_fc) { | |
982 | goto end; | |
983 | } | |
984 | ||
985 | BT_ASSERT(bt_field_class_get_type(ir_fc) == | |
986 | BT_FIELD_CLASS_TYPE_STRUCTURE); | |
987 | BT_ASSERT(fc); | |
988 | *fc = (void *) fs_sink_ctf_field_class_struct_create_empty( | |
989 | ir_fc, UINT64_C(-1)); | |
990 | BT_ASSERT(*fc); | |
991 | ctx->cur_scope = scope; | |
992 | BT_ASSERT(ctx->cur_path->len == 0); | |
993 | ret = cur_path_stack_push(ctx, UINT64_C(-1), NULL, ir_fc, NULL); | |
994 | if (ret) { | |
995 | BT_LOGE("Cannot translate scope structure field class: " | |
996 | "scope=%d", scope); | |
997 | goto end; | |
998 | } | |
999 | ||
1000 | ret = translate_structure_field_class_members(ctx, (void *) *fc, ir_fc); | |
1001 | if (ret) { | |
1002 | BT_LOGE("Cannot translate scope structure field class: " | |
1003 | "scope=%d", scope); | |
1004 | goto end; | |
1005 | } | |
1006 | ||
1007 | cur_path_stack_pop(ctx); | |
1008 | ||
1009 | /* Set field refs for preceding targets */ | |
1010 | ret = set_field_refs(*fc, NULL, NULL); | |
1011 | ||
1012 | end: | |
1013 | return ret; | |
1014 | } | |
1015 | ||
1016 | static inline | |
1017 | void ctx_init(struct ctx *ctx) | |
1018 | { | |
1019 | memset(ctx, 0, sizeof(struct ctx)); | |
1020 | ctx->cur_path = g_array_new(FALSE, TRUE, | |
1021 | sizeof(struct field_path_elem)); | |
1022 | BT_ASSERT(ctx->cur_path); | |
1023 | } | |
1024 | ||
1025 | static inline | |
1026 | void ctx_fini(struct ctx *ctx) | |
1027 | { | |
1028 | if (ctx->cur_path) { | |
1029 | g_array_free(ctx->cur_path, TRUE); | |
1030 | ctx->cur_path = NULL; | |
1031 | } | |
1032 | } | |
1033 | ||
1034 | static | |
1035 | int translate_event_class(struct fs_sink_ctf_stream_class *sc, | |
1036 | const bt_event_class *ir_ec, | |
1037 | struct fs_sink_ctf_event_class **out_ec) | |
1038 | { | |
1039 | int ret = 0; | |
1040 | struct ctx ctx; | |
1041 | struct fs_sink_ctf_event_class *ec; | |
1042 | ||
1043 | BT_ASSERT(sc); | |
1044 | BT_ASSERT(ir_ec); | |
1045 | ||
1046 | ctx_init(&ctx); | |
1047 | ec = fs_sink_ctf_event_class_create(sc, ir_ec); | |
1048 | BT_ASSERT(ec); | |
1049 | ctx.cur_sc = sc; | |
1050 | ctx.cur_ec = ec; | |
1051 | ret = translate_scope_field_class(&ctx, BT_SCOPE_EVENT_SPECIFIC_CONTEXT, | |
1052 | &ec->spec_context_fc, | |
1053 | bt_event_class_borrow_specific_context_field_class_const( | |
1054 | ir_ec)); | |
1055 | if (ret) { | |
1056 | goto end; | |
1057 | } | |
1058 | ||
1059 | ret = translate_scope_field_class(&ctx, BT_SCOPE_EVENT_PAYLOAD, | |
1060 | &ec->payload_fc, | |
1061 | bt_event_class_borrow_payload_field_class_const(ir_ec)); | |
1062 | if (ret) { | |
1063 | goto end; | |
1064 | } | |
1065 | ||
1066 | end: | |
1067 | ctx_fini(&ctx); | |
1068 | *out_ec = ec; | |
1069 | return ret; | |
1070 | } | |
1071 | ||
1072 | BT_HIDDEN | |
1073 | int try_translate_event_class_trace_ir_to_ctf_ir( | |
1074 | struct fs_sink_ctf_stream_class *sc, | |
1075 | const bt_event_class *ir_ec, | |
1076 | struct fs_sink_ctf_event_class **out_ec) | |
1077 | { | |
1078 | int ret = 0; | |
1079 | ||
1080 | BT_ASSERT(sc); | |
1081 | BT_ASSERT(ir_ec); | |
1082 | ||
1083 | /* Check in hash table first */ | |
1084 | *out_ec = g_hash_table_lookup(sc->event_classes_from_ir, ir_ec); | |
1085 | if (likely(*out_ec)) { | |
1086 | goto end; | |
1087 | } | |
1088 | ||
1089 | ret = translate_event_class(sc, ir_ec, out_ec); | |
1090 | ||
1091 | end: | |
1092 | return ret; | |
1093 | } | |
1094 | ||
1095 | bool default_clock_class_name_exists(struct fs_sink_ctf_trace_class *tc, | |
1096 | const char *name) | |
1097 | { | |
1098 | bool exists = false; | |
1099 | uint64_t i; | |
1100 | ||
1101 | for (i = 0; i < tc->stream_classes->len; i++) { | |
1102 | struct fs_sink_ctf_stream_class *sc = | |
1103 | tc->stream_classes->pdata[i]; | |
1104 | ||
1105 | if (sc->default_clock_class_name->len == 0) { | |
1106 | /* No default clock class */ | |
1107 | continue; | |
1108 | } | |
1109 | ||
1110 | if (strcmp(sc->default_clock_class_name->str, name) == 0) { | |
1111 | exists = true; | |
1112 | goto end; | |
1113 | } | |
1114 | } | |
1115 | ||
1116 | end: | |
1117 | return exists; | |
1118 | } | |
1119 | ||
1120 | static | |
1121 | void make_unique_default_clock_class_name(struct fs_sink_ctf_stream_class *sc) | |
1122 | { | |
1123 | unsigned int suffix = 0; | |
1124 | char buf[16]; | |
1125 | ||
1126 | g_string_assign(sc->default_clock_class_name, ""); | |
1127 | sprintf(buf, "default"); | |
1128 | ||
1129 | while (default_clock_class_name_exists(sc->tc, buf)) { | |
1130 | sprintf(buf, "default%u", suffix); | |
1131 | suffix++; | |
1132 | } | |
1133 | ||
1134 | g_string_assign(sc->default_clock_class_name, buf); | |
1135 | } | |
1136 | ||
1137 | static | |
1138 | int translate_stream_class(struct fs_sink_ctf_trace_class *tc, | |
1139 | const bt_stream_class *ir_sc, | |
1140 | struct fs_sink_ctf_stream_class **out_sc) | |
1141 | { | |
1142 | int ret = 0; | |
1143 | struct ctx ctx; | |
1144 | ||
1145 | BT_ASSERT(tc); | |
1146 | BT_ASSERT(ir_sc); | |
1147 | ctx_init(&ctx); | |
1148 | *out_sc = fs_sink_ctf_stream_class_create(tc, ir_sc); | |
1149 | BT_ASSERT(*out_sc); | |
1150 | ||
1151 | /* Set default clock class's protected name, if any */ | |
1152 | if ((*out_sc)->default_clock_class) { | |
1153 | const char *name = bt_clock_class_get_name( | |
1154 | (*out_sc)->default_clock_class); | |
1155 | ||
1156 | if (!bt_stream_class_default_clock_is_always_known(ir_sc)) { | |
1157 | BT_LOGE("Unsupported stream clock which can have an unknown value: " | |
1158 | "sc-name=\"%s\"", | |
1159 | bt_stream_class_get_name(ir_sc)); | |
1160 | goto error; | |
1161 | } | |
1162 | ||
1163 | if (name) { | |
1164 | /* Try original name, protected */ | |
1165 | g_string_assign((*out_sc)->default_clock_class_name, | |
1166 | name); | |
1167 | ret = fs_sink_ctf_protect_name( | |
1168 | (*out_sc)->default_clock_class_name); | |
1169 | if (ret) { | |
1170 | /* Invalid: create a new name */ | |
1171 | make_unique_default_clock_class_name(*out_sc); | |
1172 | ret = 0; | |
1173 | } | |
1174 | } else { | |
1175 | /* No name: create a name */ | |
1176 | make_unique_default_clock_class_name(*out_sc); | |
1177 | } | |
1178 | } | |
1179 | ||
1180 | ctx.cur_sc = *out_sc; | |
1181 | ret = translate_scope_field_class(&ctx, BT_SCOPE_PACKET_CONTEXT, | |
1182 | &(*out_sc)->packet_context_fc, | |
1183 | bt_stream_class_borrow_packet_context_field_class_const(ir_sc)); | |
1184 | if (ret) { | |
1185 | goto error; | |
1186 | } | |
1187 | ||
1188 | if ((*out_sc)->packet_context_fc) { | |
1189 | /* | |
1190 | * Make sure the structure field class's alignment is | |
1191 | * enough: 8 is what we use for our own special members | |
1192 | * in the packet context. | |
1193 | */ | |
1194 | fs_sink_ctf_field_class_struct_align_at_least( | |
1195 | (void *) (*out_sc)->packet_context_fc, 8); | |
1196 | } | |
1197 | ||
1198 | ret = translate_scope_field_class(&ctx, BT_SCOPE_EVENT_COMMON_CONTEXT, | |
1199 | &(*out_sc)->event_common_context_fc, | |
1200 | bt_stream_class_borrow_event_common_context_field_class_const( | |
1201 | ir_sc)); | |
1202 | if (ret) { | |
1203 | goto error; | |
1204 | } | |
1205 | ||
1206 | goto end; | |
1207 | ||
1208 | error: | |
1209 | fs_sink_ctf_stream_class_destroy(*out_sc); | |
1210 | *out_sc = NULL; | |
1211 | ||
1212 | end: | |
1213 | ctx_fini(&ctx); | |
1214 | return ret; | |
1215 | } | |
1216 | ||
1217 | BT_HIDDEN | |
1218 | int try_translate_stream_class_trace_ir_to_ctf_ir( | |
1219 | struct fs_sink_ctf_trace_class *tc, | |
1220 | const bt_stream_class *ir_sc, | |
1221 | struct fs_sink_ctf_stream_class **out_sc) | |
1222 | { | |
1223 | int ret = 0; | |
1224 | uint64_t i; | |
1225 | ||
1226 | BT_ASSERT(tc); | |
1227 | BT_ASSERT(ir_sc); | |
1228 | ||
1229 | for (i = 0; i < tc->stream_classes->len; i++) { | |
1230 | *out_sc = tc->stream_classes->pdata[i]; | |
1231 | ||
1232 | if ((*out_sc)->ir_sc == ir_sc) { | |
1233 | goto end; | |
1234 | } | |
1235 | } | |
1236 | ||
1237 | ret = translate_stream_class(tc, ir_sc, out_sc); | |
1238 | ||
1239 | end: | |
1240 | return ret; | |
1241 | } | |
1242 | ||
1243 | BT_HIDDEN | |
1244 | struct fs_sink_ctf_trace_class *translate_trace_class_trace_ir_to_ctf_ir( | |
1245 | const bt_trace_class *ir_tc) | |
1246 | { | |
1247 | uint64_t count; | |
1248 | uint64_t i; | |
1249 | struct fs_sink_ctf_trace_class *tc = NULL; | |
1250 | ||
1251 | /* Check that trace class's environment is TSDL-compatible */ | |
1252 | count = bt_trace_class_get_environment_entry_count(ir_tc); | |
1253 | for (i = 0; i < count; i++) { | |
1254 | const char *name; | |
1255 | const bt_value *val; | |
1256 | ||
1257 | bt_trace_class_borrow_environment_entry_by_index_const( | |
1258 | ir_tc, i, &name, &val); | |
1259 | ||
1260 | if (!fs_sink_ctf_ist_valid_identifier(name)) { | |
1261 | BT_LOGE("Unsupported trace class's environment entry name: " | |
1262 | "name=\"%s\"", name); | |
1263 | goto end; | |
1264 | } | |
1265 | ||
1266 | switch (bt_value_get_type(val)) { | |
1267 | case BT_VALUE_TYPE_INTEGER: | |
1268 | case BT_VALUE_TYPE_STRING: | |
1269 | break; | |
1270 | default: | |
1271 | BT_LOGE("Unsupported trace class's environment entry value type: " | |
1272 | "type=%s", | |
1273 | bt_common_value_type_string( | |
1274 | bt_value_get_type(val))); | |
1275 | goto end; | |
1276 | } | |
1277 | } | |
1278 | ||
1279 | tc = fs_sink_ctf_trace_class_create(ir_tc); | |
1280 | BT_ASSERT(tc); | |
1281 | ||
1282 | end: | |
1283 | return tc; | |
1284 | } |