Commit | Line | Data |
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e98a2d6e PP |
1 | /* |
2 | * Babeltrace - CTF notification iterator | |
06a626b8 | 3 | * |
e98a2d6e PP |
4 | * Copyright (c) 2015-2016 EfficiOS Inc. and Linux Foundation |
5 | * Copyright (c) 2015-2016 Philippe Proulx <pproulx@efficios.com> | |
6 | * | |
7 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
8 | * of this software and associated documentation files (the "Software"), to deal | |
9 | * in the Software without restriction, including without limitation the rights | |
10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
11 | * copies of the Software, and to permit persons to whom the Software is | |
12 | * furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice shall be included in | |
15 | * all copies or substantial portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
20 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
23 | * SOFTWARE. | |
24 | */ | |
25 | ||
fdf0e7a0 PP |
26 | #define BT_LOG_TAG "PLUGIN-CTF-NOTIF-ITER" |
27 | #include "logging.h" | |
28 | ||
e98a2d6e PP |
29 | #include <stdint.h> |
30 | #include <inttypes.h> | |
31 | #include <stdio.h> | |
32 | #include <stddef.h> | |
33 | #include <stdbool.h> | |
34 | #include <assert.h> | |
35 | #include <string.h> | |
e0831b38 | 36 | #include <babeltrace/babeltrace.h> |
fdf0e7a0 | 37 | #include <babeltrace/ctf-ir/field-types-internal.h> |
fdf0e7a0 | 38 | #include <babeltrace/ctf-ir/field-path-internal.h> |
e98a2d6e | 39 | #include <glib.h> |
0fbb9a9f | 40 | #include <stdlib.h> |
e98a2d6e | 41 | |
06a626b8 JG |
42 | #include "notif-iter.h" |
43 | #include "../btr/btr.h" | |
e98a2d6e | 44 | |
e98a2d6e PP |
45 | struct bt_ctf_notif_iter; |
46 | ||
47 | /* A visit stack entry */ | |
48 | struct stack_entry { | |
49 | /* | |
50 | * Current base field, one of: | |
51 | * | |
52 | * * string | |
53 | * * structure | |
54 | * * array | |
55 | * * sequence | |
56 | * * variant | |
57 | * | |
58 | * Field is owned by this. | |
59 | */ | |
60 | struct bt_ctf_field *base; | |
61 | ||
62 | /* index of next field to set */ | |
63 | size_t index; | |
64 | }; | |
65 | ||
66 | /* Visit stack */ | |
67 | struct stack { | |
68 | /* Entries (struct stack_entry *) (top is last element) */ | |
69 | GPtrArray *entries; | |
e98a2d6e PP |
70 | }; |
71 | ||
72 | /* State */ | |
73 | enum state { | |
74 | STATE_INIT, | |
75 | STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN, | |
76 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
77 | STATE_AFTER_TRACE_PACKET_HEADER, | |
78 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN, | |
79 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
80 | STATE_AFTER_STREAM_PACKET_CONTEXT, | |
81 | STATE_EMIT_NOTIF_NEW_PACKET, | |
82 | STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN, | |
83 | STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE, | |
84 | STATE_AFTER_STREAM_EVENT_HEADER, | |
85 | STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN, | |
86 | STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE, | |
87 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN, | |
88 | STATE_DSCOPE_EVENT_CONTEXT_CONTINUE, | |
89 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, | |
90 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
91 | STATE_EMIT_NOTIF_EVENT, | |
92 | STATE_EMIT_NOTIF_END_OF_PACKET, | |
93 | STATE_SKIP_PACKET_PADDING, | |
94 | }; | |
95 | ||
5f870343 JG |
96 | struct trace_field_path_cache { |
97 | /* | |
98 | * Indexes of the stream_id and stream_instance_id field in the packet | |
99 | * header structure, -1 if unset. | |
100 | */ | |
101 | int stream_id; | |
102 | int stream_instance_id; | |
103 | }; | |
104 | ||
105 | struct stream_class_field_path_cache { | |
106 | /* | |
107 | * Indexes of the v and id fields in the stream event header structure, | |
108 | * -1 if unset. | |
109 | */ | |
110 | int v; | |
111 | int id; | |
112 | ||
113 | /* | |
114 | * index of the timestamp_end, packet_size and content_size fields in | |
115 | * the stream packet context structure. Set to -1 if the fields were | |
116 | * not found. | |
117 | */ | |
118 | int timestamp_end; | |
119 | int packet_size; | |
120 | int content_size; | |
121 | }; | |
122 | ||
123 | struct field_cb_override { | |
124 | enum bt_ctf_btr_status (* func)(void *value, | |
125 | struct bt_ctf_field_type *type, void *data); | |
126 | void *data; | |
127 | }; | |
128 | ||
e98a2d6e PP |
129 | /* CTF notification iterator */ |
130 | struct bt_ctf_notif_iter { | |
131 | /* Visit stack */ | |
132 | struct stack *stack; | |
133 | ||
e98a2d6e PP |
134 | /* |
135 | * Current dynamic scope field pointer. | |
136 | * | |
137 | * This is set when a dynamic scope field is first created by | |
138 | * btr_compound_begin_cb(). It points to one of the fields in | |
139 | * dscopes below. | |
140 | */ | |
141 | struct bt_ctf_field **cur_dscope_field; | |
142 | ||
143 | /* Trace and classes (owned by this) */ | |
144 | struct { | |
145 | struct bt_ctf_trace *trace; | |
146 | struct bt_ctf_stream_class *stream_class; | |
147 | struct bt_ctf_event_class *event_class; | |
148 | } meta; | |
149 | ||
150 | /* Current packet (NULL if not created yet) */ | |
151 | struct bt_ctf_packet *packet; | |
152 | ||
5184a1d6 PP |
153 | /* Current stream (NULL if not set yet) */ |
154 | struct bt_ctf_stream *stream; | |
155 | ||
5f870343 JG |
156 | /* |
157 | * Current timestamp_end field (to consider before switching packets). | |
158 | */ | |
159 | struct bt_ctf_field *cur_timestamp_end; | |
160 | ||
e98a2d6e PP |
161 | /* Database of current dynamic scopes (owned by this) */ |
162 | struct { | |
163 | struct bt_ctf_field *trace_packet_header; | |
164 | struct bt_ctf_field *stream_packet_context; | |
165 | struct bt_ctf_field *stream_event_header; | |
166 | struct bt_ctf_field *stream_event_context; | |
167 | struct bt_ctf_field *event_context; | |
168 | struct bt_ctf_field *event_payload; | |
169 | } dscopes; | |
170 | ||
5f870343 JG |
171 | /* |
172 | * Special field overrides. | |
173 | * | |
174 | * Overrides are used to implement the behaviours of special fields such | |
175 | * as "timestamp_end" (which must be ignored until the end of the | |
176 | * packet), "id" (event id) which can be present multiple times and must | |
177 | * be updated multiple time. | |
178 | * | |
179 | * This should be used to implement the behaviour of integer fields | |
180 | * mapped to clocks and other "tagged" fields (in CTF 2). | |
181 | * | |
182 | * bt_ctf_field_type to struct field_cb_override | |
183 | */ | |
184 | GHashTable *field_overrides; | |
185 | ||
e98a2d6e PP |
186 | /* Current state */ |
187 | enum state state; | |
188 | ||
2cf1d51e | 189 | /* Current medium buffer data */ |
e98a2d6e PP |
190 | struct { |
191 | /* Last address provided by medium */ | |
192 | const uint8_t *addr; | |
193 | ||
194 | /* Buffer size provided by medium (bytes) */ | |
195 | size_t sz; | |
196 | ||
197 | /* Offset within whole packet of addr (bits) */ | |
198 | size_t packet_offset; | |
199 | ||
200 | /* Current position from addr (bits) */ | |
201 | size_t at; | |
9b876b7b PP |
202 | |
203 | /* Position of the last event header from addr (bits) */ | |
204 | size_t last_eh_at; | |
e98a2d6e PP |
205 | } buf; |
206 | ||
207 | /* Binary type reader */ | |
208 | struct bt_ctf_btr *btr; | |
209 | ||
2cf1d51e | 210 | /* Current medium data */ |
e98a2d6e PP |
211 | struct { |
212 | struct bt_ctf_notif_iter_medium_ops medops; | |
213 | size_t max_request_sz; | |
214 | void *data; | |
215 | } medium; | |
216 | ||
217 | /* Current packet size (bits) (-1 if unknown) */ | |
e7a4393b | 218 | int64_t cur_packet_size; |
e98a2d6e PP |
219 | |
220 | /* Current content size (bits) (-1 if unknown) */ | |
e7a4393b | 221 | int64_t cur_content_size; |
c44c3e70 | 222 | |
bb230c9b JG |
223 | /* |
224 | * Offset, in the underlying media, of the current packet's start | |
225 | * (-1 if unknown). | |
226 | */ | |
227 | off_t cur_packet_offset; | |
228 | ||
ac0c6bdd | 229 | /* bt_ctf_clock_class to uint64_t. */ |
c44c3e70 | 230 | GHashTable *clock_states; |
5f870343 JG |
231 | |
232 | /* | |
233 | * Cache of the trace-constant field paths (event header type) | |
234 | * associated to the current trace. | |
235 | */ | |
236 | struct trace_field_path_cache trace_field_path_cache; | |
237 | ||
238 | /* | |
239 | * Field path cache associated with the current stream class. | |
240 | * Ownership of this structure belongs to the field_path_caches HT. | |
241 | */ | |
242 | struct stream_class_field_path_cache *cur_sc_field_path_cache; | |
243 | ||
244 | /* bt_ctf_stream_class to struct stream_class_field_path_cache. */ | |
245 | GHashTable *sc_field_path_caches; | |
e98a2d6e PP |
246 | }; |
247 | ||
fdf0e7a0 PP |
248 | static inline |
249 | const char *state_string(enum state state) | |
250 | { | |
251 | switch (state) { | |
252 | case STATE_INIT: | |
253 | return "STATE_INIT"; | |
254 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
255 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN"; | |
256 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
257 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE"; | |
258 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
259 | return "STATE_AFTER_TRACE_PACKET_HEADER"; | |
260 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
261 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN"; | |
262 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
263 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE"; | |
264 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
265 | return "STATE_AFTER_STREAM_PACKET_CONTEXT"; | |
266 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
267 | return "STATE_EMIT_NOTIF_NEW_PACKET"; | |
268 | case STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN: | |
269 | return "STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN"; | |
270 | case STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE: | |
271 | return "STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE"; | |
272 | case STATE_AFTER_STREAM_EVENT_HEADER: | |
273 | return "STATE_AFTER_STREAM_EVENT_HEADER"; | |
274 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN: | |
275 | return "STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN"; | |
276 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE: | |
277 | return "STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE"; | |
278 | case STATE_DSCOPE_EVENT_CONTEXT_BEGIN: | |
279 | return "STATE_DSCOPE_EVENT_CONTEXT_BEGIN"; | |
280 | case STATE_DSCOPE_EVENT_CONTEXT_CONTINUE: | |
281 | return "STATE_DSCOPE_EVENT_CONTEXT_CONTINUE"; | |
282 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
283 | return "STATE_DSCOPE_EVENT_PAYLOAD_BEGIN"; | |
284 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
285 | return "STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE"; | |
286 | case STATE_EMIT_NOTIF_EVENT: | |
287 | return "STATE_EMIT_NOTIF_EVENT"; | |
288 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
289 | return "STATE_EMIT_NOTIF_END_OF_PACKET"; | |
290 | case STATE_SKIP_PACKET_PADDING: | |
291 | return "STATE_SKIP_PACKET_PADDING"; | |
292 | default: | |
293 | return "(unknown)"; | |
294 | } | |
295 | } | |
296 | ||
2cf1d51e JG |
297 | static |
298 | int bt_ctf_notif_iter_switch_packet(struct bt_ctf_notif_iter *notit); | |
299 | ||
5f870343 JG |
300 | static |
301 | enum bt_ctf_btr_status btr_timestamp_end_cb(void *value, | |
302 | struct bt_ctf_field_type *type, void *data); | |
303 | ||
e98a2d6e PP |
304 | static |
305 | void stack_entry_free_func(gpointer data) | |
306 | { | |
307 | struct stack_entry *entry = data; | |
308 | ||
309 | bt_put(entry->base); | |
310 | g_free(entry); | |
311 | } | |
312 | ||
313 | static | |
314 | struct stack *stack_new(struct bt_ctf_notif_iter *notit) | |
315 | { | |
316 | struct stack *stack = NULL; | |
317 | ||
318 | stack = g_new0(struct stack, 1); | |
319 | if (!stack) { | |
fdf0e7a0 | 320 | BT_LOGE_STR("Failed to allocate one stack."); |
e98a2d6e PP |
321 | goto error; |
322 | } | |
323 | ||
324 | stack->entries = g_ptr_array_new_with_free_func(stack_entry_free_func); | |
325 | if (!stack->entries) { | |
fdf0e7a0 | 326 | BT_LOGE_STR("Failed to allocate a GPtrArray."); |
e98a2d6e PP |
327 | goto error; |
328 | } | |
329 | ||
fdf0e7a0 | 330 | BT_LOGD("Created stack: notit-addr=%p, stack-addr=%p", notit, stack); |
e98a2d6e | 331 | return stack; |
fdf0e7a0 | 332 | |
e98a2d6e PP |
333 | error: |
334 | g_free(stack); | |
e98a2d6e PP |
335 | return NULL; |
336 | } | |
337 | ||
338 | static | |
339 | void stack_destroy(struct stack *stack) | |
340 | { | |
341 | assert(stack); | |
fdf0e7a0 | 342 | BT_LOGD("Destroying stack: addr=%p", stack); |
e98a2d6e PP |
343 | g_ptr_array_free(stack->entries, TRUE); |
344 | g_free(stack); | |
345 | } | |
346 | ||
347 | static | |
348 | int stack_push(struct stack *stack, struct bt_ctf_field *base) | |
349 | { | |
350 | int ret = 0; | |
351 | struct stack_entry *entry; | |
e98a2d6e PP |
352 | |
353 | assert(stack); | |
354 | assert(base); | |
fdf0e7a0 PP |
355 | BT_LOGV("Pushing base field on stack: stack-addr=%p, " |
356 | "stack-size-before=%u, stack-size-after=%u", | |
357 | stack, stack->entries->len, stack->entries->len + 1); | |
e98a2d6e PP |
358 | entry = g_new0(struct stack_entry, 1); |
359 | if (!entry) { | |
fdf0e7a0 | 360 | BT_LOGE_STR("Failed to allocate one stack entry."); |
e98a2d6e PP |
361 | ret = -1; |
362 | goto end; | |
363 | } | |
364 | ||
365 | entry->base = bt_get(base); | |
366 | g_ptr_array_add(stack->entries, entry); | |
367 | ||
368 | end: | |
369 | return ret; | |
370 | } | |
371 | ||
372 | static inline | |
373 | unsigned int stack_size(struct stack *stack) | |
374 | { | |
375 | assert(stack); | |
376 | ||
377 | return stack->entries->len; | |
378 | } | |
379 | ||
380 | static | |
381 | void stack_pop(struct stack *stack) | |
382 | { | |
383 | assert(stack); | |
384 | assert(stack_size(stack)); | |
fdf0e7a0 PP |
385 | BT_LOGV("Popping from stack: " |
386 | "stack-addr=%p, stack-size-before=%u, stack-size-after=%u", | |
387 | stack, stack->entries->len, stack->entries->len - 1); | |
e98a2d6e PP |
388 | g_ptr_array_remove_index(stack->entries, stack->entries->len - 1); |
389 | } | |
390 | ||
391 | static inline | |
392 | struct stack_entry *stack_top(struct stack *stack) | |
393 | { | |
394 | assert(stack); | |
395 | assert(stack_size(stack)); | |
396 | ||
397 | return g_ptr_array_index(stack->entries, stack->entries->len - 1); | |
398 | } | |
399 | ||
400 | static inline | |
401 | bool stack_empty(struct stack *stack) | |
402 | { | |
403 | return stack_size(stack) == 0; | |
404 | } | |
405 | ||
406 | static | |
407 | void stack_clear(struct stack *stack) | |
408 | { | |
409 | assert(stack); | |
410 | ||
411 | if (!stack_empty(stack)) { | |
fdf0e7a0 PP |
412 | BT_LOGV("Clearing stack: stack-addr=%p, stack-size=%u", |
413 | stack, stack->entries->len); | |
e98a2d6e PP |
414 | g_ptr_array_remove_range(stack->entries, 0, stack_size(stack)); |
415 | } | |
416 | ||
417 | assert(stack_empty(stack)); | |
418 | } | |
419 | ||
420 | static inline | |
421 | enum bt_ctf_notif_iter_status notif_iter_status_from_m_status( | |
422 | enum bt_ctf_notif_iter_medium_status m_status) | |
423 | { | |
dc77b521 | 424 | return (int) m_status; |
e98a2d6e PP |
425 | } |
426 | ||
427 | static inline | |
428 | size_t buf_size_bits(struct bt_ctf_notif_iter *notit) | |
429 | { | |
fdf0e7a0 | 430 | return notit->buf.sz * 8; |
e98a2d6e PP |
431 | } |
432 | ||
433 | static inline | |
434 | size_t buf_available_bits(struct bt_ctf_notif_iter *notit) | |
435 | { | |
436 | return buf_size_bits(notit) - notit->buf.at; | |
437 | } | |
438 | ||
439 | static inline | |
440 | size_t packet_at(struct bt_ctf_notif_iter *notit) | |
441 | { | |
442 | return notit->buf.packet_offset + notit->buf.at; | |
443 | } | |
444 | ||
e98a2d6e PP |
445 | static inline |
446 | void buf_consume_bits(struct bt_ctf_notif_iter *notit, size_t incr) | |
447 | { | |
fdf0e7a0 PP |
448 | BT_LOGV("Advancing cursor: notit-addr=%p, cur-before=%zu, cur-after=%zu", |
449 | notit, notit->buf.at, notit->buf.at + incr); | |
e98a2d6e PP |
450 | notit->buf.at += incr; |
451 | } | |
452 | ||
e98a2d6e | 453 | static |
2cf1d51e JG |
454 | enum bt_ctf_notif_iter_status request_medium_bytes( |
455 | struct bt_ctf_notif_iter *notit) | |
e98a2d6e | 456 | { |
fdf0e7a0 PP |
457 | uint8_t *buffer_addr = NULL; |
458 | size_t buffer_sz = 0; | |
e98a2d6e PP |
459 | enum bt_ctf_notif_iter_medium_status m_status; |
460 | ||
fdf0e7a0 PP |
461 | BT_LOGV("Calling user function (request bytes): notit-addr=%p, " |
462 | "request-size=%zu", notit, notit->medium.max_request_sz); | |
e98a2d6e PP |
463 | m_status = notit->medium.medops.request_bytes( |
464 | notit->medium.max_request_sz, &buffer_addr, | |
465 | &buffer_sz, notit->medium.data); | |
fdf0e7a0 PP |
466 | BT_LOGV("User function returned: status=%s, buf-addr=%p, buf-size=%zu", |
467 | bt_ctf_notif_iter_medium_status_string(m_status), | |
468 | buffer_addr, buffer_sz); | |
e98a2d6e PP |
469 | if (m_status == BT_CTF_NOTIF_ITER_MEDIUM_STATUS_OK) { |
470 | assert(buffer_sz != 0); | |
471 | ||
472 | /* New packet offset is old one + old size (in bits) */ | |
473 | notit->buf.packet_offset += buf_size_bits(notit); | |
474 | ||
475 | /* Restart at the beginning of the new medium buffer */ | |
476 | notit->buf.at = 0; | |
bb8744a7 | 477 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
478 | |
479 | /* New medium buffer size */ | |
480 | notit->buf.sz = buffer_sz; | |
481 | ||
482 | /* New medium buffer address */ | |
483 | notit->buf.addr = buffer_addr; | |
fdf0e7a0 PP |
484 | |
485 | BT_LOGV("User function returned new bytes: " | |
486 | "packet-offset=%zu, cur=%zu, size=%zu, addr=%p", | |
487 | notit->buf.packet_offset, notit->buf.at, | |
488 | notit->buf.sz, notit->buf.addr); | |
489 | BT_LOGV_MEM(buffer_addr, buffer_sz, "Returned bytes at %p:", | |
490 | buffer_addr); | |
7116f6c0 PP |
491 | } else if (m_status == BT_CTF_NOTIF_ITER_MEDIUM_STATUS_EOF) { |
492 | struct bt_ctf_field_type *eh_ft = NULL; | |
493 | struct bt_ctf_field_type *sec_ft = NULL; | |
494 | struct bt_ctf_field_type *ec_ft = NULL; | |
495 | ||
496 | /* | |
497 | * User returned end of stream: validate that we're not | |
498 | * in the middle of a packet header, packet context, or | |
499 | * event. | |
500 | */ | |
501 | if (notit->state == STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN) { | |
502 | /* Beginning of packet: always valid */ | |
503 | goto good_state; | |
504 | } | |
505 | ||
506 | if (!notit->meta.stream_class) { | |
507 | goto bad_state; | |
508 | } | |
509 | ||
510 | eh_ft = bt_ctf_stream_class_get_event_header_type( | |
511 | notit->meta.stream_class); | |
512 | sec_ft = bt_ctf_stream_class_get_event_context_type( | |
513 | notit->meta.stream_class); | |
514 | ||
515 | if (notit->state == STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN) { | |
516 | /* | |
517 | * Beginning of event's header is only valid if | |
518 | * the packet is not supposed to have a specific | |
519 | * size (whole packet sequence has in fact only | |
520 | * one packet). | |
521 | */ | |
522 | if (notit->cur_packet_size == -1) { | |
523 | goto good_state; | |
524 | } | |
525 | } | |
526 | ||
527 | if (notit->state == STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN) { | |
528 | /* | |
529 | * Beginning of event's stream event context is | |
530 | * only valid if the packet is not supposed to | |
531 | * have a specific size (whole packet sequence | |
532 | * has in fact only one packet), and there's no | |
533 | * event header. | |
534 | */ | |
535 | if (notit->cur_packet_size == -1 && !eh_ft) { | |
536 | goto good_state; | |
537 | } | |
538 | } | |
539 | ||
540 | if (!notit->meta.event_class) { | |
541 | goto bad_state; | |
542 | } | |
543 | ||
544 | ec_ft = bt_ctf_event_class_get_context_type( | |
545 | notit->meta.event_class); | |
546 | ||
547 | if (notit->state == STATE_DSCOPE_EVENT_CONTEXT_BEGIN) { | |
548 | /* | |
549 | * Beginning of event's context is only valid if | |
550 | * the packet is not supposed to have a specific | |
551 | * size (whole packet sequence has in fact only | |
552 | * one packet), and there's no event header and | |
553 | * no stream event context. | |
554 | */ | |
555 | if (notit->cur_packet_size == -1 && !eh_ft && !sec_ft) { | |
556 | goto good_state; | |
557 | } | |
558 | } | |
559 | ||
560 | if (notit->state == STATE_DSCOPE_EVENT_PAYLOAD_BEGIN) { | |
561 | /* | |
562 | * Beginning of event's context is only valid if | |
563 | * the packet is not supposed to have a specific | |
564 | * size (whole packet sequence has in fact only | |
565 | * one packet), and there's no event header, no | |
566 | * stream event context, and no event context. | |
567 | */ | |
568 | if (notit->cur_packet_size == -1 && !eh_ft && !sec_ft && | |
569 | !ec_ft) { | |
570 | goto good_state; | |
571 | } | |
572 | } | |
573 | ||
574 | bad_state: | |
575 | /* All other states are invalid */ | |
576 | BT_LOGW("User function returned %s, but notification iterator is in an unexpected state: " | |
577 | "state=%s", | |
578 | bt_ctf_notif_iter_medium_status_string(m_status), | |
579 | state_string(notit->state)); | |
580 | m_status = BT_CTF_NOTIF_ITER_MEDIUM_STATUS_ERROR; | |
581 | ||
582 | good_state: | |
583 | bt_put(eh_ft); | |
584 | bt_put(sec_ft); | |
585 | bt_put(ec_ft); | |
fdf0e7a0 PP |
586 | } else if (m_status < 0) { |
587 | BT_LOGW("User function failed: status=%s", | |
588 | bt_ctf_notif_iter_medium_status_string(m_status)); | |
e98a2d6e PP |
589 | } |
590 | ||
591 | return notif_iter_status_from_m_status(m_status); | |
592 | } | |
593 | ||
594 | static inline | |
595 | enum bt_ctf_notif_iter_status buf_ensure_available_bits( | |
596 | struct bt_ctf_notif_iter *notit) | |
597 | { | |
598 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
599 | ||
600 | if (buf_available_bits(notit) == 0) { | |
601 | /* | |
602 | * This _cannot_ return BT_CTF_NOTIF_ITER_STATUS_OK | |
603 | * _and_ no bits. | |
604 | */ | |
605 | status = request_medium_bytes(notit); | |
606 | } | |
607 | ||
608 | return status; | |
609 | } | |
610 | ||
611 | static | |
612 | enum bt_ctf_notif_iter_status read_dscope_begin_state( | |
613 | struct bt_ctf_notif_iter *notit, | |
614 | struct bt_ctf_field_type *dscope_field_type, | |
615 | enum state done_state, enum state continue_state, | |
616 | struct bt_ctf_field **dscope_field) | |
617 | { | |
618 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
619 | enum bt_ctf_btr_status btr_status; | |
620 | size_t consumed_bits; | |
621 | ||
622 | status = buf_ensure_available_bits(notit); | |
623 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
fdf0e7a0 PP |
624 | if (status < 0) { |
625 | BT_LOGW("Cannot ensure that buffer has at least one byte: " | |
626 | "notif-addr=%p, status=%s", | |
627 | notit, bt_ctf_notif_iter_status_string(status)); | |
628 | } else { | |
629 | BT_LOGV("Cannot ensure that buffer has at least one byte: " | |
630 | "notif-addr=%p, status=%s", | |
631 | notit, bt_ctf_notif_iter_status_string(status)); | |
632 | } | |
633 | ||
e98a2d6e PP |
634 | goto end; |
635 | } | |
636 | ||
637 | bt_put(*dscope_field); | |
638 | notit->cur_dscope_field = dscope_field; | |
fdf0e7a0 PP |
639 | BT_LOGV("Starting BTR: notit-addr=%p, btr-addr=%p, ft-addr=%p", |
640 | notit, notit->btr, dscope_field_type); | |
e98a2d6e PP |
641 | consumed_bits = bt_ctf_btr_start(notit->btr, dscope_field_type, |
642 | notit->buf.addr, notit->buf.at, packet_at(notit), | |
643 | notit->buf.sz, &btr_status); | |
fdf0e7a0 | 644 | BT_LOGV("BTR consumed bits: size=%zu", consumed_bits); |
e98a2d6e PP |
645 | |
646 | switch (btr_status) { | |
647 | case BT_CTF_BTR_STATUS_OK: | |
648 | /* type was read completely */ | |
fdf0e7a0 | 649 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
650 | notit->state = done_state; |
651 | break; | |
652 | case BT_CTF_BTR_STATUS_EOF: | |
fdf0e7a0 | 653 | BT_LOGV_STR("BTR needs more data to decode field completely."); |
e98a2d6e PP |
654 | notit->state = continue_state; |
655 | break; | |
656 | default: | |
fdf0e7a0 PP |
657 | BT_LOGW("BTR failed to start: notit-addr=%p, btr-addr=%p, " |
658 | "status=%s", notit, notit->btr, | |
659 | bt_ctf_btr_status_string(btr_status)); | |
e98a2d6e PP |
660 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
661 | goto end; | |
662 | } | |
663 | ||
664 | /* Consume bits now since we know we're not in an error state */ | |
665 | buf_consume_bits(notit, consumed_bits); | |
666 | ||
667 | end: | |
668 | return status; | |
669 | } | |
670 | ||
671 | static | |
672 | enum bt_ctf_notif_iter_status read_dscope_continue_state( | |
673 | struct bt_ctf_notif_iter *notit, enum state done_state) | |
674 | { | |
675 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
676 | enum bt_ctf_btr_status btr_status; | |
677 | size_t consumed_bits; | |
678 | ||
679 | status = buf_ensure_available_bits(notit); | |
680 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
fdf0e7a0 PP |
681 | if (status < 0) { |
682 | BT_LOGW("Cannot ensure that buffer has at least one byte: " | |
683 | "notif-addr=%p, status=%s", | |
684 | notit, bt_ctf_notif_iter_status_string(status)); | |
685 | } else { | |
686 | BT_LOGV("Cannot ensure that buffer has at least one byte: " | |
687 | "notif-addr=%p, status=%s", | |
688 | notit, bt_ctf_notif_iter_status_string(status)); | |
689 | } | |
690 | ||
e98a2d6e PP |
691 | goto end; |
692 | } | |
693 | ||
fdf0e7a0 PP |
694 | BT_LOGV("Continuing BTR: notit-addr=%p, btr-addr=%p", |
695 | notit, notit->btr); | |
e98a2d6e | 696 | consumed_bits = bt_ctf_btr_continue(notit->btr, notit->buf.addr, |
fdf0e7a0 PP |
697 | notit->buf.sz, &btr_status); |
698 | BT_LOGV("BTR consumed bits: size=%zu", consumed_bits); | |
e98a2d6e PP |
699 | |
700 | switch (btr_status) { | |
701 | case BT_CTF_BTR_STATUS_OK: | |
78586d8a | 702 | /* Type was read completely. */ |
fdf0e7a0 | 703 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
704 | notit->state = done_state; |
705 | break; | |
706 | case BT_CTF_BTR_STATUS_EOF: | |
78586d8a | 707 | /* Stay in this continue state. */ |
fdf0e7a0 | 708 | BT_LOGV_STR("BTR needs more data to decode field completely."); |
e98a2d6e PP |
709 | break; |
710 | default: | |
fdf0e7a0 PP |
711 | BT_LOGW("BTR failed to continue: notit-addr=%p, btr-addr=%p, " |
712 | "status=%s", notit, notit->btr, | |
713 | bt_ctf_btr_status_string(btr_status)); | |
e98a2d6e PP |
714 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
715 | goto end; | |
716 | } | |
717 | ||
78586d8a | 718 | /* Consume bits now since we know we're not in an error state. */ |
e98a2d6e | 719 | buf_consume_bits(notit, consumed_bits); |
e98a2d6e PP |
720 | end: |
721 | return status; | |
722 | } | |
723 | ||
724 | static | |
725 | void put_event_dscopes(struct bt_ctf_notif_iter *notit) | |
726 | { | |
fdf0e7a0 | 727 | BT_LOGV_STR("Putting event header field."); |
e98a2d6e | 728 | BT_PUT(notit->dscopes.stream_event_header); |
fdf0e7a0 | 729 | BT_LOGV_STR("Putting stream event context field."); |
e98a2d6e | 730 | BT_PUT(notit->dscopes.stream_event_context); |
fdf0e7a0 | 731 | BT_LOGV_STR("Putting event context field."); |
e98a2d6e | 732 | BT_PUT(notit->dscopes.event_context); |
fdf0e7a0 | 733 | BT_LOGV_STR("Putting event payload field."); |
e98a2d6e PP |
734 | BT_PUT(notit->dscopes.event_payload); |
735 | } | |
736 | ||
737 | static | |
738 | void put_all_dscopes(struct bt_ctf_notif_iter *notit) | |
739 | { | |
fdf0e7a0 | 740 | BT_LOGV_STR("Putting packet header field."); |
e98a2d6e | 741 | BT_PUT(notit->dscopes.trace_packet_header); |
fdf0e7a0 | 742 | BT_LOGV_STR("Putting packet context field."); |
e98a2d6e PP |
743 | BT_PUT(notit->dscopes.stream_packet_context); |
744 | put_event_dscopes(notit); | |
745 | } | |
746 | ||
747 | static | |
748 | enum bt_ctf_notif_iter_status read_packet_header_begin_state( | |
749 | struct bt_ctf_notif_iter *notit) | |
750 | { | |
2cf1d51e JG |
751 | struct bt_ctf_field_type *packet_header_type = NULL; |
752 | enum bt_ctf_notif_iter_status ret = BT_CTF_NOTIF_ITER_STATUS_OK; | |
e98a2d6e | 753 | |
2cf1d51e | 754 | if (bt_ctf_notif_iter_switch_packet(notit)) { |
fdf0e7a0 | 755 | BT_LOGW("Cannot switch packet: notit-addr=%p", notit); |
2cf1d51e JG |
756 | ret = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
757 | goto end; | |
758 | } | |
e98a2d6e | 759 | |
2cf1d51e | 760 | /* Packet header type is common to the whole trace. */ |
e98a2d6e | 761 | packet_header_type = bt_ctf_trace_get_packet_header_type( |
78586d8a | 762 | notit->meta.trace); |
e98a2d6e | 763 | if (!packet_header_type) { |
835b2d10 | 764 | notit->state = STATE_AFTER_TRACE_PACKET_HEADER; |
e98a2d6e PP |
765 | goto end; |
766 | } | |
767 | ||
fdf0e7a0 PP |
768 | BT_LOGV("Decoding packet header field:" |
769 | "notit-addr=%p, trace-addr=%p, trace-name=\"%s\", ft-addr=%p", | |
770 | notit, notit->meta.trace, | |
771 | bt_ctf_trace_get_name(notit->meta.trace), packet_header_type); | |
2cf1d51e | 772 | ret = read_dscope_begin_state(notit, packet_header_type, |
fdf0e7a0 PP |
773 | STATE_AFTER_TRACE_PACKET_HEADER, |
774 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
775 | ¬it->dscopes.trace_packet_header); | |
776 | if (ret < 0) { | |
777 | BT_LOGW("Cannot decode packet header field: " | |
778 | "notit-addr=%p, trace-addr=%p, " | |
779 | "trace-name=\"%s\", ft-addr=%p", | |
780 | notit, notit->meta.trace, | |
781 | bt_ctf_trace_get_name(notit->meta.trace), | |
782 | packet_header_type); | |
783 | } | |
e98a2d6e PP |
784 | end: |
785 | BT_PUT(packet_header_type); | |
2cf1d51e | 786 | return ret; |
e98a2d6e PP |
787 | } |
788 | ||
789 | static | |
790 | enum bt_ctf_notif_iter_status read_packet_header_continue_state( | |
791 | struct bt_ctf_notif_iter *notit) | |
792 | { | |
793 | return read_dscope_continue_state(notit, | |
78586d8a | 794 | STATE_AFTER_TRACE_PACKET_HEADER); |
e98a2d6e PP |
795 | } |
796 | ||
797 | static inline | |
798 | bool is_struct_type(struct bt_ctf_field_type *field_type) | |
799 | { | |
78586d8a | 800 | return bt_ctf_field_type_get_type_id(field_type) == |
1487a16a | 801 | BT_CTF_FIELD_TYPE_ID_STRUCT; |
e98a2d6e PP |
802 | } |
803 | ||
804 | static inline | |
805 | bool is_variant_type(struct bt_ctf_field_type *field_type) | |
806 | { | |
78586d8a | 807 | return bt_ctf_field_type_get_type_id(field_type) == |
1487a16a | 808 | BT_CTF_FIELD_TYPE_ID_VARIANT; |
e98a2d6e PP |
809 | } |
810 | ||
5f870343 JG |
811 | static |
812 | struct stream_class_field_path_cache * | |
813 | create_stream_class_field_path_cache_entry( | |
814 | struct bt_ctf_notif_iter *notit, | |
815 | struct bt_ctf_stream_class *stream_class) | |
816 | { | |
817 | int v = -1; | |
818 | int id = -1; | |
819 | int timestamp_end = -1; | |
820 | int packet_size = -1; | |
821 | int content_size = -1; | |
822 | struct stream_class_field_path_cache *cache_entry = g_new0( | |
823 | struct stream_class_field_path_cache, 1); | |
824 | struct bt_ctf_field_type *event_header = NULL, *packet_context = NULL; | |
825 | ||
826 | if (!cache_entry) { | |
fdf0e7a0 | 827 | BT_LOGE_STR("Failed to allocate one stream class field path cache."); |
5f870343 JG |
828 | goto end; |
829 | } | |
830 | ||
831 | event_header = bt_ctf_stream_class_get_event_header_type(stream_class); | |
832 | if (event_header && bt_ctf_field_type_is_structure(event_header)) { | |
833 | int i, count; | |
834 | ||
835 | count = bt_ctf_field_type_structure_get_field_count( | |
fdf0e7a0 PP |
836 | event_header); |
837 | assert(count >= 0); | |
838 | ||
5f870343 JG |
839 | for (i = 0; i < count; i++) { |
840 | int ret; | |
841 | const char *name; | |
842 | ||
843 | ret = bt_ctf_field_type_structure_get_field( | |
844 | event_header, &name, NULL, i); | |
845 | if (ret) { | |
fdf0e7a0 PP |
846 | BT_LOGE("Cannot get event header structure field type's field: " |
847 | "notit-addr=%p, stream-class-addr=%p, " | |
848 | "stream-class-name=\"%s\", " | |
849 | "stream-class-id=%" PRId64 ", " | |
850 | "ft-addr=%p, index=%d", | |
851 | notit, stream_class, | |
852 | bt_ctf_stream_class_get_name(stream_class), | |
853 | bt_ctf_stream_class_get_id(stream_class), | |
854 | event_header, i); | |
5f870343 JG |
855 | goto error; |
856 | } | |
857 | ||
858 | if (v != -1 && id != -1) { | |
859 | break; | |
860 | } | |
fdf0e7a0 PP |
861 | |
862 | if (v == -1 && strcmp(name, "v") == 0) { | |
5f870343 JG |
863 | v = i; |
864 | } else if (id == -1 && !strcmp(name, "id")) { | |
865 | id = i; | |
866 | } | |
867 | } | |
868 | } | |
869 | ||
870 | packet_context = bt_ctf_stream_class_get_packet_context_type( | |
871 | stream_class); | |
872 | if (packet_context && bt_ctf_field_type_is_structure(packet_context)) { | |
873 | int i, count; | |
874 | ||
875 | count = bt_ctf_field_type_structure_get_field_count( | |
fdf0e7a0 PP |
876 | packet_context); |
877 | assert(count >= 0); | |
878 | ||
5f870343 JG |
879 | for (i = 0; i < count; i++) { |
880 | int ret; | |
881 | const char *name; | |
882 | struct bt_ctf_field_type *field_type; | |
883 | ||
884 | if (timestamp_end != -1 && packet_size != -1 && | |
885 | content_size != -1) { | |
886 | break; | |
887 | } | |
888 | ||
889 | ret = bt_ctf_field_type_structure_get_field( | |
890 | packet_context, &name, &field_type, i); | |
891 | if (ret) { | |
fdf0e7a0 PP |
892 | BT_LOGE("Cannot get packet context structure field type's field: " |
893 | "notit-addr=%p, stream-class-addr=%p, " | |
894 | "stream-class-name=\"%s\", " | |
895 | "stream-class-id=%" PRId64 ", " | |
896 | "ft-addr=%p, index=%d", | |
897 | notit, stream_class, | |
898 | bt_ctf_stream_class_get_name(stream_class), | |
899 | bt_ctf_stream_class_get_id(stream_class), | |
900 | event_header, i); | |
5f870343 JG |
901 | goto error; |
902 | } | |
903 | ||
904 | if (timestamp_end == -1 && | |
fdf0e7a0 | 905 | strcmp(name, "timestamp_end") == 0) { |
5f870343 JG |
906 | struct field_cb_override *override = g_new0( |
907 | struct field_cb_override, 1); | |
908 | ||
909 | if (!override) { | |
910 | BT_PUT(field_type); | |
911 | goto error; | |
912 | } | |
913 | ||
914 | override->func = btr_timestamp_end_cb; | |
915 | override->data = notit; | |
5f870343 | 916 | g_hash_table_insert(notit->field_overrides, |
fdf0e7a0 | 917 | bt_get(field_type), override); |
5f870343 JG |
918 | timestamp_end = i; |
919 | } else if (packet_size == -1 && | |
920 | !strcmp(name, "packet_size")) { | |
921 | packet_size = i; | |
922 | } else if (content_size == -1 && | |
923 | !strcmp(name, "content_size")) { | |
924 | content_size = i; | |
925 | } | |
926 | BT_PUT(field_type); | |
927 | } | |
928 | } | |
929 | ||
930 | cache_entry->v = v; | |
931 | cache_entry->id = id; | |
932 | cache_entry->timestamp_end = timestamp_end; | |
933 | cache_entry->packet_size = packet_size; | |
934 | cache_entry->content_size = content_size; | |
935 | end: | |
936 | BT_PUT(event_header); | |
937 | BT_PUT(packet_context); | |
938 | return cache_entry; | |
939 | error: | |
940 | g_free(cache_entry); | |
941 | cache_entry = NULL; | |
942 | goto end; | |
943 | } | |
944 | ||
945 | static | |
946 | struct stream_class_field_path_cache *get_stream_class_field_path_cache( | |
947 | struct bt_ctf_notif_iter *notit, | |
948 | struct bt_ctf_stream_class *stream_class) | |
949 | { | |
950 | bool cache_entry_found; | |
951 | struct stream_class_field_path_cache *cache_entry; | |
952 | ||
953 | cache_entry_found = g_hash_table_lookup_extended( | |
954 | notit->sc_field_path_caches, | |
955 | stream_class, NULL, (gpointer) &cache_entry); | |
956 | if (unlikely(!cache_entry_found)) { | |
957 | cache_entry = create_stream_class_field_path_cache_entry(notit, | |
fdf0e7a0 | 958 | stream_class); |
5f870343 | 959 | g_hash_table_insert(notit->sc_field_path_caches, |
fdf0e7a0 | 960 | bt_get(stream_class), (gpointer) cache_entry); |
5f870343 JG |
961 | } |
962 | ||
963 | return cache_entry; | |
964 | } | |
965 | ||
e98a2d6e | 966 | static inline |
835b2d10 JG |
967 | enum bt_ctf_notif_iter_status set_current_stream_class( |
968 | struct bt_ctf_notif_iter *notit) | |
e98a2d6e PP |
969 | { |
970 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
5f870343 | 971 | struct bt_ctf_field_type *packet_header_type = NULL; |
e98a2d6e | 972 | struct bt_ctf_field_type *stream_id_field_type = NULL; |
c937c615 | 973 | struct bt_ctf_stream_class *new_stream_class = NULL; |
e98a2d6e PP |
974 | uint64_t stream_id; |
975 | ||
5f870343 JG |
976 | /* Clear the current stream class field path cache. */ |
977 | notit->cur_sc_field_path_cache = NULL; | |
978 | ||
e98a2d6e PP |
979 | /* Is there any "stream_id" field in the packet header? */ |
980 | packet_header_type = bt_ctf_trace_get_packet_header_type( | |
fdf0e7a0 | 981 | notit->meta.trace); |
e98a2d6e | 982 | if (!packet_header_type) { |
fdf0e7a0 PP |
983 | /* |
984 | * No packet header, therefore no `stream_id` field, | |
985 | * therefore only one stream class. | |
986 | */ | |
987 | goto single_stream_class; | |
e98a2d6e PP |
988 | } |
989 | ||
990 | assert(is_struct_type(packet_header_type)); | |
991 | ||
992 | // TODO: optimalize! | |
993 | stream_id_field_type = | |
fdf0e7a0 PP |
994 | bt_ctf_field_type_structure_get_field_type_by_name( |
995 | packet_header_type, "stream_id"); | |
e98a2d6e PP |
996 | if (stream_id_field_type) { |
997 | /* Find appropriate stream class using current stream ID */ | |
e98a2d6e | 998 | int ret; |
5f870343 | 999 | struct bt_ctf_field *stream_id_field = NULL; |
e98a2d6e PP |
1000 | |
1001 | assert(notit->dscopes.trace_packet_header); | |
1002 | ||
1003 | // TODO: optimalize! | |
1004 | stream_id_field = bt_ctf_field_structure_get_field( | |
78586d8a | 1005 | notit->dscopes.trace_packet_header, "stream_id"); |
e98a2d6e PP |
1006 | assert(stream_id_field); |
1007 | ret = bt_ctf_field_unsigned_integer_get_value( | |
78586d8a | 1008 | stream_id_field, &stream_id); |
e98a2d6e PP |
1009 | assert(!ret); |
1010 | BT_PUT(stream_id_field); | |
1011 | } else { | |
fdf0e7a0 | 1012 | single_stream_class: |
e98a2d6e PP |
1013 | /* Only one stream: pick the first stream class */ |
1014 | assert(bt_ctf_trace_get_stream_class_count( | |
78586d8a | 1015 | notit->meta.trace) == 1); |
e98a2d6e PP |
1016 | stream_id = 0; |
1017 | } | |
1018 | ||
fdf0e7a0 PP |
1019 | BT_LOGV("Found stream class ID to use: notit-addr=%p, " |
1020 | "stream-class-id=%" PRIu64 ", " | |
1021 | "trace-addr=%p, trace-name=\"%s\"", | |
1022 | notit, stream_id, notit->meta.trace, | |
1023 | bt_ctf_trace_get_name(notit->meta.trace)); | |
1024 | ||
c937c615 | 1025 | new_stream_class = bt_ctf_trace_get_stream_class_by_id( |
fdf0e7a0 | 1026 | notit->meta.trace, stream_id); |
c937c615 | 1027 | if (!new_stream_class) { |
fdf0e7a0 PP |
1028 | BT_LOGW("No stream class with ID of stream class ID to use in trace: " |
1029 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " | |
1030 | "trace-addr=%p, trace-name=\"%s\"", | |
1031 | notit, stream_id, notit->meta.trace, | |
1032 | bt_ctf_trace_get_name(notit->meta.trace)); | |
e98a2d6e PP |
1033 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1034 | goto end; | |
1035 | } | |
1036 | ||
c937c615 PP |
1037 | if (notit->meta.stream_class) { |
1038 | if (new_stream_class != notit->meta.stream_class) { | |
1039 | BT_LOGW("Two packets refer to two different stream classes within the same packet sequence: " | |
1040 | "notit-addr=%p, prev-stream-class-addr=%p, " | |
1041 | "prev-stream-class-name=\"%s\", " | |
1042 | "prev-stream-class-id=%" PRId64 ", " | |
1043 | "next-stream-class-addr=%p, " | |
1044 | "next-stream-class-name=\"%s\", " | |
1045 | "next-stream-class-id=%" PRId64 ", " | |
1046 | "trace-addr=%p, trace-name=\"%s\"", | |
1047 | notit, notit->meta.stream_class, | |
1048 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1049 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1050 | new_stream_class, | |
1051 | bt_ctf_stream_class_get_name(new_stream_class), | |
1052 | bt_ctf_stream_class_get_id(new_stream_class), | |
1053 | notit->meta.trace, | |
1054 | bt_ctf_trace_get_name(notit->meta.trace)); | |
1055 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
1056 | goto end; | |
1057 | } | |
1058 | } else { | |
1059 | BT_MOVE(notit->meta.stream_class, new_stream_class); | |
1060 | } | |
1061 | ||
fdf0e7a0 PP |
1062 | BT_LOGV("Set current stream class: " |
1063 | "notit-addr=%p, stream-class-addr=%p, " | |
1064 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1065 | notit, notit->meta.stream_class, | |
1066 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1067 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
1068 | ||
5f870343 JG |
1069 | /* |
1070 | * Retrieve (or lazily create) the current stream class field path | |
1071 | * cache. | |
1072 | */ | |
1073 | notit->cur_sc_field_path_cache = get_stream_class_field_path_cache( | |
fdf0e7a0 | 1074 | notit, notit->meta.stream_class); |
5f870343 | 1075 | if (!notit->cur_sc_field_path_cache) { |
fdf0e7a0 PP |
1076 | BT_LOGW("Cannot retrieve stream class field path from cache: " |
1077 | "notit-addr=%p, stream-class-addr=%p, " | |
1078 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1079 | notit, notit->meta.stream_class, | |
1080 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1081 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
5f870343 JG |
1082 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1083 | goto end; | |
1084 | } | |
e98a2d6e PP |
1085 | end: |
1086 | BT_PUT(packet_header_type); | |
1087 | BT_PUT(stream_id_field_type); | |
c937c615 | 1088 | bt_put(new_stream_class); |
e98a2d6e PP |
1089 | return status; |
1090 | } | |
1091 | ||
1092 | static | |
1093 | enum bt_ctf_notif_iter_status after_packet_header_state( | |
1094 | struct bt_ctf_notif_iter *notit) | |
1095 | { | |
1096 | enum bt_ctf_notif_iter_status status; | |
1097 | ||
1098 | status = set_current_stream_class(notit); | |
1099 | if (status == BT_CTF_NOTIF_ITER_STATUS_OK) { | |
1100 | notit->state = STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN; | |
1101 | } | |
1102 | ||
1103 | return status; | |
1104 | } | |
1105 | ||
1106 | static | |
1107 | enum bt_ctf_notif_iter_status read_packet_context_begin_state( | |
1108 | struct bt_ctf_notif_iter *notit) | |
1109 | { | |
1110 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1111 | struct bt_ctf_field_type *packet_context_type; | |
1112 | ||
1113 | assert(notit->meta.stream_class); | |
1114 | packet_context_type = bt_ctf_stream_class_get_packet_context_type( | |
fdf0e7a0 | 1115 | notit->meta.stream_class); |
e98a2d6e | 1116 | if (!packet_context_type) { |
fdf0e7a0 PP |
1117 | BT_LOGV("No packet packet context field type in stream class: continuing: " |
1118 | "notit-addr=%p, stream-class-addr=%p, " | |
1119 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1120 | notit, notit->meta.stream_class, | |
1121 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1122 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
835b2d10 | 1123 | notit->state = STATE_AFTER_STREAM_PACKET_CONTEXT; |
e98a2d6e PP |
1124 | goto end; |
1125 | } | |
1126 | ||
fdf0e7a0 PP |
1127 | BT_LOGV("Decoding packet context field: " |
1128 | "notit-addr=%p, stream-class-addr=%p, " | |
1129 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1130 | "ft-addr=%p", | |
1131 | notit, notit->meta.stream_class, | |
1132 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1133 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1134 | packet_context_type); | |
e98a2d6e | 1135 | status = read_dscope_begin_state(notit, packet_context_type, |
fdf0e7a0 PP |
1136 | STATE_AFTER_STREAM_PACKET_CONTEXT, |
1137 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
1138 | ¬it->dscopes.stream_packet_context); | |
1139 | if (status < 0) { | |
1140 | BT_LOGW("Cannot decode packet context field: " | |
1141 | "notit-addr=%p, stream-class-addr=%p, " | |
1142 | "stream-class-name=\"%s\", " | |
1143 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1144 | notit, notit->meta.stream_class, | |
1145 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1146 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1147 | packet_context_type); | |
1148 | } | |
e98a2d6e PP |
1149 | |
1150 | end: | |
1151 | BT_PUT(packet_context_type); | |
e98a2d6e PP |
1152 | return status; |
1153 | } | |
1154 | ||
1155 | static | |
1156 | enum bt_ctf_notif_iter_status read_packet_context_continue_state( | |
1157 | struct bt_ctf_notif_iter *notit) | |
1158 | { | |
1159 | return read_dscope_continue_state(notit, | |
78586d8a | 1160 | STATE_AFTER_STREAM_PACKET_CONTEXT); |
e98a2d6e PP |
1161 | } |
1162 | ||
78586d8a | 1163 | static |
e98a2d6e PP |
1164 | enum bt_ctf_notif_iter_status set_current_packet_content_sizes( |
1165 | struct bt_ctf_notif_iter *notit) | |
1166 | { | |
1167 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1168 | struct bt_ctf_field *packet_size_field = NULL; | |
1169 | struct bt_ctf_field *content_size_field = NULL; | |
a27839b0 | 1170 | uint64_t content_size = -1ULL, packet_size = -1ULL; |
e98a2d6e | 1171 | |
89b08333 MD |
1172 | if (!notit->dscopes.stream_packet_context) { |
1173 | goto end; | |
1174 | } | |
e98a2d6e | 1175 | |
e98a2d6e | 1176 | packet_size_field = bt_ctf_field_structure_get_field( |
fdf0e7a0 | 1177 | notit->dscopes.stream_packet_context, "packet_size"); |
e98a2d6e | 1178 | content_size_field = bt_ctf_field_structure_get_field( |
fdf0e7a0 | 1179 | notit->dscopes.stream_packet_context, "content_size"); |
e98a2d6e PP |
1180 | if (packet_size_field) { |
1181 | int ret = bt_ctf_field_unsigned_integer_get_value( | |
fdf0e7a0 | 1182 | packet_size_field, &packet_size); |
e98a2d6e | 1183 | |
fdf0e7a0 | 1184 | assert(ret == 0); |
e98a2d6e | 1185 | if (packet_size == 0) { |
fdf0e7a0 PP |
1186 | BT_LOGW("Invalid packet size: packet context field indicates packet size is zero: " |
1187 | "notit-addr=%p, packet-context-field-addr=%p", | |
1188 | notit, notit->dscopes.stream_packet_context); | |
e98a2d6e PP |
1189 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1190 | goto end; | |
1191 | } else if ((packet_size % 8) != 0) { | |
fdf0e7a0 PP |
1192 | BT_LOGW("Invalid packet size: packet context field indicates packet size is not a multiple of 8: " |
1193 | "notit-addr=%p, packet-context-field-addr=%p, " | |
1194 | "packet-size=%" PRIu64, | |
1195 | notit, notit->dscopes.stream_packet_context, | |
1196 | packet_size); | |
e98a2d6e PP |
1197 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1198 | goto end; | |
1199 | } | |
1200 | } | |
78586d8a | 1201 | |
e98a2d6e PP |
1202 | if (content_size_field) { |
1203 | int ret = bt_ctf_field_unsigned_integer_get_value( | |
1204 | content_size_field, &content_size); | |
78586d8a | 1205 | |
fdf0e7a0 | 1206 | assert(ret == 0); |
e98a2d6e PP |
1207 | } else { |
1208 | content_size = packet_size; | |
1209 | } | |
1210 | ||
fdf0e7a0 PP |
1211 | if (content_size > packet_size) { |
1212 | BT_LOGW("Invalid packet or content size: packet context field indicates content size is greater than packet size: " | |
1213 | "notit-addr=%p, packet-context-field-addr=%p, " | |
1214 | "packet-size=%" PRIu64 ", content-size=%" PRIu64, | |
1215 | notit, notit->dscopes.stream_packet_context, | |
1216 | packet_size, content_size); | |
1217 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
1218 | goto end; | |
1219 | } | |
1220 | ||
a27839b0 MD |
1221 | if (packet_size != -1ULL) { |
1222 | notit->cur_packet_size = packet_size; | |
1223 | } else { | |
1224 | /* | |
1225 | * Use the content size as packet size indicator if the | |
1226 | * packet size field is missing. This means there is no | |
1227 | * padding in this stream. | |
1228 | */ | |
1229 | notit->cur_packet_size = content_size; | |
1230 | } | |
e98a2d6e | 1231 | notit->cur_content_size = content_size; |
fdf0e7a0 PP |
1232 | BT_LOGV("Set current packet and content sizes: " |
1233 | "notit-addr=%p, packet-size=%" PRIu64 ", content-size=%" PRIu64, | |
1234 | notit, packet_size, content_size); | |
e98a2d6e PP |
1235 | end: |
1236 | BT_PUT(packet_size_field); | |
1237 | BT_PUT(content_size_field); | |
e98a2d6e PP |
1238 | return status; |
1239 | } | |
1240 | ||
1241 | static | |
1242 | enum bt_ctf_notif_iter_status after_packet_context_state( | |
1243 | struct bt_ctf_notif_iter *notit) | |
1244 | { | |
1245 | enum bt_ctf_notif_iter_status status; | |
1246 | ||
1247 | status = set_current_packet_content_sizes(notit); | |
1248 | if (status == BT_CTF_NOTIF_ITER_STATUS_OK) { | |
1249 | notit->state = STATE_EMIT_NOTIF_NEW_PACKET; | |
1250 | } | |
1251 | ||
1252 | return status; | |
1253 | } | |
1254 | ||
1255 | static | |
1256 | enum bt_ctf_notif_iter_status read_event_header_begin_state( | |
1257 | struct bt_ctf_notif_iter *notit) | |
1258 | { | |
1259 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1260 | struct bt_ctf_field_type *event_header_type = NULL; | |
1261 | ||
9b876b7b PP |
1262 | /* Reset the position of the last event header */ |
1263 | notit->buf.last_eh_at = notit->buf.at; | |
1264 | ||
e98a2d6e PP |
1265 | /* Check if we have some content left */ |
1266 | if (notit->cur_content_size >= 0) { | |
1267 | if (packet_at(notit) == notit->cur_content_size) { | |
1268 | /* No more events! */ | |
fdf0e7a0 PP |
1269 | BT_LOGV("Reached end of packet: notit-addr=%p, " |
1270 | "cur=%zu", notit, packet_at(notit)); | |
e98a2d6e PP |
1271 | notit->state = STATE_EMIT_NOTIF_END_OF_PACKET; |
1272 | goto end; | |
1273 | } else if (packet_at(notit) > notit->cur_content_size) { | |
1274 | /* That's not supposed to happen */ | |
fdf0e7a0 | 1275 | BT_LOGV("Before decoding event header field: cursor is passed the packet's content: " |
41342c71 | 1276 | "notit-addr=%p, content-size=%" PRId64 ", " |
fdf0e7a0 PP |
1277 | "cur=%zu", notit, notit->cur_content_size, |
1278 | packet_at(notit)); | |
e98a2d6e PP |
1279 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1280 | goto end; | |
1281 | } | |
1282 | } | |
1283 | ||
1284 | event_header_type = bt_ctf_stream_class_get_event_header_type( | |
1285 | notit->meta.stream_class); | |
1286 | if (!event_header_type) { | |
835b2d10 | 1287 | notit->state = STATE_AFTER_STREAM_EVENT_HEADER; |
e98a2d6e PP |
1288 | goto end; |
1289 | } | |
1290 | ||
1291 | put_event_dscopes(notit); | |
fdf0e7a0 PP |
1292 | BT_LOGV("Decoding event header field: " |
1293 | "notit-addr=%p, stream-class-addr=%p, " | |
1294 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1295 | "ft-addr=%p", | |
1296 | notit, notit->meta.stream_class, | |
1297 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1298 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1299 | event_header_type); | |
e98a2d6e PP |
1300 | status = read_dscope_begin_state(notit, event_header_type, |
1301 | STATE_AFTER_STREAM_EVENT_HEADER, | |
1302 | STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE, | |
1303 | ¬it->dscopes.stream_event_header); | |
fdf0e7a0 PP |
1304 | if (status < 0) { |
1305 | BT_LOGW("Cannot decode event header field: " | |
1306 | "notit-addr=%p, stream-class-addr=%p, " | |
1307 | "stream-class-name=\"%s\", " | |
1308 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1309 | notit, notit->meta.stream_class, | |
1310 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1311 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1312 | event_header_type); | |
1313 | } | |
e98a2d6e PP |
1314 | end: |
1315 | BT_PUT(event_header_type); | |
1316 | ||
1317 | return status; | |
1318 | } | |
1319 | ||
1320 | static | |
1321 | enum bt_ctf_notif_iter_status read_event_header_continue_state( | |
1322 | struct bt_ctf_notif_iter *notit) | |
1323 | { | |
1324 | return read_dscope_continue_state(notit, | |
1325 | STATE_AFTER_STREAM_EVENT_HEADER); | |
1326 | } | |
1327 | ||
1328 | static inline | |
1329 | enum bt_ctf_notif_iter_status set_current_event_class(struct bt_ctf_notif_iter *notit) | |
1330 | { | |
1331 | /* | |
1332 | * The assert() calls in this function are okay because it is | |
1333 | * assumed here that all the metadata objects have been | |
1334 | * validated for CTF correctness before decoding actual streams. | |
1335 | */ | |
1336 | ||
1337 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1338 | struct bt_ctf_field_type *event_header_type; | |
1339 | struct bt_ctf_field_type *id_field_type = NULL; | |
1340 | struct bt_ctf_field_type *v_field_type = NULL; | |
1341 | uint64_t event_id = -1ULL; | |
1342 | int ret; | |
1343 | ||
1344 | event_header_type = bt_ctf_stream_class_get_event_header_type( | |
1345 | notit->meta.stream_class); | |
1346 | if (!event_header_type) { | |
fdf0e7a0 PP |
1347 | /* |
1348 | * No event header, therefore no event class ID field, | |
1349 | * therefore only one event class. | |
1350 | */ | |
1351 | goto single_event_class; | |
e98a2d6e PP |
1352 | } |
1353 | ||
1354 | /* Is there any "id"/"v" field in the event header? */ | |
1355 | assert(is_struct_type(event_header_type)); | |
1356 | id_field_type = bt_ctf_field_type_structure_get_field_type_by_name( | |
1357 | event_header_type, "id"); | |
1358 | v_field_type = bt_ctf_field_type_structure_get_field_type_by_name( | |
1359 | event_header_type, "v"); | |
1360 | assert(notit->dscopes.stream_event_header); | |
1361 | if (v_field_type) { | |
1362 | /* | |
1363 | * _ _____ _____ | |
1364 | * | | |_ _|_ _| __ __ _ | |
1365 | * | | | | | || '_ \ / _` | | |
1366 | * | |___| | | || | | | (_| | S P E C I A L | |
1367 | * |_____|_| |_||_| |_|\__, | C A S E ™ | |
1368 | * |___/ | |
1369 | */ | |
1370 | struct bt_ctf_field *v_field = NULL; | |
1371 | struct bt_ctf_field *v_struct_field = NULL; | |
1372 | struct bt_ctf_field *v_struct_id_field = NULL; | |
1373 | ||
1374 | // TODO: optimalize! | |
1375 | v_field = bt_ctf_field_structure_get_field( | |
1376 | notit->dscopes.stream_event_header, "v"); | |
1377 | assert(v_field); | |
1378 | ||
1379 | v_struct_field = | |
1380 | bt_ctf_field_variant_get_current_field(v_field); | |
1381 | if (!v_struct_field) { | |
1382 | goto end_v_field_type; | |
1383 | } | |
1384 | ||
1385 | // TODO: optimalize! | |
1386 | v_struct_id_field = | |
1387 | bt_ctf_field_structure_get_field(v_struct_field, "id"); | |
1388 | if (!v_struct_id_field) { | |
1389 | goto end_v_field_type; | |
1390 | } | |
1391 | ||
fdf0e7a0 PP |
1392 | if (bt_ctf_field_is_integer(v_struct_id_field)) { |
1393 | ret = bt_ctf_field_unsigned_integer_get_value( | |
1394 | v_struct_id_field, &event_id); | |
1395 | if (ret) { | |
1396 | BT_LOGV("Cannot get value of unsigned integer field (`id`): continuing: " | |
1397 | "notit=%p, field-addr=%p", | |
1398 | notit, v_struct_id_field); | |
1399 | event_id = -1ULL; | |
1400 | } | |
e98a2d6e PP |
1401 | } |
1402 | ||
1403 | end_v_field_type: | |
1404 | BT_PUT(v_field); | |
1405 | BT_PUT(v_struct_field); | |
1406 | BT_PUT(v_struct_id_field); | |
1407 | } | |
1408 | ||
1409 | if (id_field_type && event_id == -1ULL) { | |
1410 | /* Check "id" field */ | |
1411 | struct bt_ctf_field *id_field = NULL; | |
fdf0e7a0 | 1412 | int ret = 0; |
e98a2d6e PP |
1413 | |
1414 | // TODO: optimalize! | |
1415 | id_field = bt_ctf_field_structure_get_field( | |
1416 | notit->dscopes.stream_event_header, "id"); | |
fdf0e7a0 PP |
1417 | if (!id_field) { |
1418 | goto check_event_id; | |
1419 | } | |
e98a2d6e PP |
1420 | |
1421 | if (bt_ctf_field_is_integer(id_field)) { | |
1422 | ret = bt_ctf_field_unsigned_integer_get_value( | |
1423 | id_field, &event_id); | |
fdf0e7a0 | 1424 | } else if (bt_ctf_field_is_enumeration(id_field)) { |
e98a2d6e PP |
1425 | struct bt_ctf_field *container; |
1426 | ||
1427 | container = bt_ctf_field_enumeration_get_container( | |
1428 | id_field); | |
1429 | assert(container); | |
1430 | ret = bt_ctf_field_unsigned_integer_get_value( | |
1431 | container, &event_id); | |
1432 | BT_PUT(container); | |
1433 | } | |
fdf0e7a0 PP |
1434 | |
1435 | assert(ret == 0); | |
e98a2d6e PP |
1436 | BT_PUT(id_field); |
1437 | } | |
1438 | ||
fdf0e7a0 | 1439 | check_event_id: |
e98a2d6e | 1440 | if (event_id == -1ULL) { |
fdf0e7a0 | 1441 | single_event_class: |
e98a2d6e PP |
1442 | /* Event ID not found: single event? */ |
1443 | assert(bt_ctf_stream_class_get_event_class_count( | |
1444 | notit->meta.stream_class) == 1); | |
1445 | event_id = 0; | |
1446 | } | |
1447 | ||
fdf0e7a0 PP |
1448 | BT_LOGV("Found event class ID to use: notit-addr=%p, " |
1449 | "stream-class-addr=%p, stream-class-name=\"%s\", " | |
1450 | "stream-class-id=%" PRId64 ", " | |
1451 | "event-class-id=%" PRIu64, | |
1452 | notit, notit->meta.stream_class, | |
1453 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1454 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1455 | event_id); | |
e98a2d6e PP |
1456 | BT_PUT(notit->meta.event_class); |
1457 | notit->meta.event_class = bt_ctf_stream_class_get_event_class_by_id( | |
1458 | notit->meta.stream_class, event_id); | |
1459 | if (!notit->meta.event_class) { | |
fdf0e7a0 PP |
1460 | BT_LOGW("No event class with ID of event class ID to use in stream class: " |
1461 | "notit-addr=%p, stream-class-addr=%p, " | |
1462 | "stream-class-name=\"%s\", " | |
1463 | "stream-class-id=%" PRId64 ", " | |
1464 | "event-class-id=%" PRIu64, | |
1465 | notit, notit->meta.stream_class, | |
1466 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1467 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1468 | event_id); | |
e98a2d6e PP |
1469 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1470 | goto end; | |
1471 | } | |
1472 | ||
fdf0e7a0 PP |
1473 | BT_LOGV("Set current event class: " |
1474 | "notit-addr=%p, event-class-addr=%p, " | |
1475 | "event-class-name=\"%s\", event-class-id=%" PRId64, | |
1476 | notit, notit->meta.event_class, | |
1477 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1478 | bt_ctf_event_class_get_id(notit->meta.event_class)); | |
1479 | ||
e98a2d6e PP |
1480 | end: |
1481 | BT_PUT(event_header_type); | |
1482 | BT_PUT(id_field_type); | |
1483 | BT_PUT(v_field_type); | |
1484 | ||
1485 | return status; | |
1486 | } | |
1487 | ||
1488 | static | |
1489 | enum bt_ctf_notif_iter_status after_event_header_state( | |
1490 | struct bt_ctf_notif_iter *notit) | |
1491 | { | |
1492 | enum bt_ctf_notif_iter_status status; | |
1493 | ||
e98a2d6e PP |
1494 | status = set_current_event_class(notit); |
1495 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
e98a2d6e PP |
1496 | goto end; |
1497 | } | |
1498 | ||
1499 | notit->state = STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN; | |
1500 | ||
1501 | end: | |
1502 | return status; | |
1503 | } | |
1504 | ||
1505 | static | |
1506 | enum bt_ctf_notif_iter_status read_stream_event_context_begin_state( | |
1507 | struct bt_ctf_notif_iter *notit) | |
1508 | { | |
1509 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1510 | struct bt_ctf_field_type *stream_event_context_type; | |
1511 | ||
1512 | stream_event_context_type = bt_ctf_stream_class_get_event_context_type( | |
1513 | notit->meta.stream_class); | |
1514 | if (!stream_event_context_type) { | |
835b2d10 | 1515 | notit->state = STATE_DSCOPE_EVENT_CONTEXT_BEGIN; |
e98a2d6e PP |
1516 | goto end; |
1517 | } | |
1518 | ||
fdf0e7a0 PP |
1519 | BT_LOGV("Decoding stream event context field: " |
1520 | "notit-addr=%p, stream-class-addr=%p, " | |
1521 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1522 | "ft-addr=%p", | |
1523 | notit, notit->meta.stream_class, | |
1524 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1525 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1526 | stream_event_context_type); | |
e98a2d6e PP |
1527 | status = read_dscope_begin_state(notit, stream_event_context_type, |
1528 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN, | |
1529 | STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE, | |
1530 | ¬it->dscopes.stream_event_context); | |
fdf0e7a0 PP |
1531 | if (status < 0) { |
1532 | BT_LOGW("Cannot decode stream event context field: " | |
1533 | "notit-addr=%p, stream-class-addr=%p, " | |
1534 | "stream-class-name=\"%s\", " | |
1535 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1536 | notit, notit->meta.stream_class, | |
1537 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1538 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1539 | stream_event_context_type); | |
1540 | } | |
e98a2d6e PP |
1541 | |
1542 | end: | |
1543 | BT_PUT(stream_event_context_type); | |
1544 | ||
1545 | return status; | |
1546 | } | |
1547 | ||
1548 | static | |
1549 | enum bt_ctf_notif_iter_status read_stream_event_context_continue_state( | |
1550 | struct bt_ctf_notif_iter *notit) | |
1551 | { | |
1552 | return read_dscope_continue_state(notit, | |
1553 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN); | |
1554 | } | |
1555 | ||
1556 | static | |
1557 | enum bt_ctf_notif_iter_status read_event_context_begin_state( | |
1558 | struct bt_ctf_notif_iter *notit) | |
1559 | { | |
1560 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1561 | struct bt_ctf_field_type *event_context_type; | |
1562 | ||
1563 | event_context_type = bt_ctf_event_class_get_context_type( | |
1564 | notit->meta.event_class); | |
1565 | if (!event_context_type) { | |
835b2d10 | 1566 | notit->state = STATE_DSCOPE_EVENT_PAYLOAD_BEGIN; |
e98a2d6e PP |
1567 | goto end; |
1568 | } | |
fdf0e7a0 PP |
1569 | |
1570 | BT_LOGV("Decoding event context field: " | |
1571 | "notit-addr=%p, event-class-addr=%p, " | |
1572 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
1573 | "ft-addr=%p", | |
1574 | notit, notit->meta.event_class, | |
1575 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1576 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
1577 | event_context_type); | |
e98a2d6e PP |
1578 | status = read_dscope_begin_state(notit, event_context_type, |
1579 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, | |
1580 | STATE_DSCOPE_EVENT_CONTEXT_CONTINUE, | |
1581 | ¬it->dscopes.event_context); | |
fdf0e7a0 PP |
1582 | if (status < 0) { |
1583 | BT_LOGW("Cannot decode event context field: " | |
1584 | "notit-addr=%p, event-class-addr=%p, " | |
1585 | "event-class-name=\"%s\", " | |
1586 | "event-class-id=%" PRId64 ", ft-addr=%p", | |
1587 | notit, notit->meta.event_class, | |
1588 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1589 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
1590 | event_context_type); | |
1591 | } | |
e98a2d6e PP |
1592 | |
1593 | end: | |
1594 | BT_PUT(event_context_type); | |
1595 | ||
1596 | return status; | |
1597 | } | |
1598 | ||
1599 | static | |
1600 | enum bt_ctf_notif_iter_status read_event_context_continue_state( | |
1601 | struct bt_ctf_notif_iter *notit) | |
1602 | { | |
1603 | return read_dscope_continue_state(notit, | |
1604 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN); | |
1605 | } | |
1606 | ||
1607 | static | |
1608 | enum bt_ctf_notif_iter_status read_event_payload_begin_state( | |
1609 | struct bt_ctf_notif_iter *notit) | |
1610 | { | |
1611 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1612 | struct bt_ctf_field_type *event_payload_type; | |
1613 | ||
1614 | event_payload_type = bt_ctf_event_class_get_payload_type( | |
1615 | notit->meta.event_class); | |
1616 | if (!event_payload_type) { | |
835b2d10 | 1617 | notit->state = STATE_EMIT_NOTIF_EVENT; |
e98a2d6e PP |
1618 | goto end; |
1619 | } | |
1620 | ||
fdf0e7a0 PP |
1621 | BT_LOGV("Decoding event payload field: " |
1622 | "notit-addr=%p, event-class-addr=%p, " | |
1623 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
1624 | "ft-addr=%p", | |
1625 | notit, notit->meta.event_class, | |
1626 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1627 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
1628 | event_payload_type); | |
e98a2d6e PP |
1629 | status = read_dscope_begin_state(notit, event_payload_type, |
1630 | STATE_EMIT_NOTIF_EVENT, | |
1631 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
1632 | ¬it->dscopes.event_payload); | |
fdf0e7a0 PP |
1633 | if (status < 0) { |
1634 | BT_LOGW("Cannot decode event payload field: " | |
1635 | "notit-addr=%p, event-class-addr=%p, " | |
1636 | "event-class-name=\"%s\", " | |
1637 | "event-class-id=%" PRId64 ", ft-addr=%p", | |
1638 | notit, notit->meta.event_class, | |
1639 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1640 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
1641 | event_payload_type); | |
1642 | } | |
e98a2d6e PP |
1643 | |
1644 | end: | |
1645 | BT_PUT(event_payload_type); | |
1646 | ||
1647 | return status; | |
1648 | } | |
1649 | ||
1650 | static | |
1651 | enum bt_ctf_notif_iter_status read_event_payload_continue_state( | |
1652 | struct bt_ctf_notif_iter *notit) | |
1653 | { | |
1654 | return read_dscope_continue_state(notit, STATE_EMIT_NOTIF_EVENT); | |
1655 | } | |
1656 | ||
1657 | static | |
1658 | enum bt_ctf_notif_iter_status skip_packet_padding_state( | |
1659 | struct bt_ctf_notif_iter *notit) | |
1660 | { | |
1661 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1662 | size_t bits_to_skip; | |
1663 | ||
1664 | assert(notit->cur_packet_size > 0); | |
1665 | bits_to_skip = notit->cur_packet_size - packet_at(notit); | |
1666 | if (bits_to_skip == 0) { | |
1667 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1668 | goto end; | |
1669 | } else { | |
1670 | size_t bits_to_consume; | |
fdf0e7a0 PP |
1671 | |
1672 | BT_LOGV("Trying to skip %zu bits of padding: notit-addr=%p, size=%zu", | |
1673 | bits_to_skip, notit, bits_to_skip); | |
e98a2d6e PP |
1674 | status = buf_ensure_available_bits(notit); |
1675 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
1676 | goto end; | |
1677 | } | |
1678 | ||
1679 | bits_to_consume = MIN(buf_available_bits(notit), bits_to_skip); | |
fdf0e7a0 PP |
1680 | BT_LOGV("Skipping %zu bits of padding: notit-addr=%p, size=%zu", |
1681 | bits_to_consume, notit, bits_to_consume); | |
e98a2d6e PP |
1682 | buf_consume_bits(notit, bits_to_consume); |
1683 | bits_to_skip = notit->cur_packet_size - packet_at(notit); | |
1684 | if (bits_to_skip == 0) { | |
1685 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1686 | goto end; | |
1687 | } | |
1688 | } | |
1689 | ||
1690 | end: | |
1691 | return status; | |
1692 | } | |
1693 | ||
1694 | static inline | |
1695 | enum bt_ctf_notif_iter_status handle_state(struct bt_ctf_notif_iter *notit) | |
1696 | { | |
1697 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
fdf0e7a0 | 1698 | const enum state state = notit->state; |
e98a2d6e | 1699 | |
fdf0e7a0 PP |
1700 | BT_LOGV("Handling state: notit-addr=%p, state=%s", |
1701 | notit, state_string(state)); | |
e98a2d6e PP |
1702 | |
1703 | // TODO: optimalize! | |
fdf0e7a0 | 1704 | switch (state) { |
e98a2d6e PP |
1705 | case STATE_INIT: |
1706 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1707 | break; | |
1708 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
1709 | status = read_packet_header_begin_state(notit); | |
1710 | break; | |
1711 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
1712 | status = read_packet_header_continue_state(notit); | |
1713 | break; | |
1714 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
1715 | status = after_packet_header_state(notit); | |
1716 | break; | |
1717 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
1718 | status = read_packet_context_begin_state(notit); | |
1719 | break; | |
1720 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
1721 | status = read_packet_context_continue_state(notit); | |
1722 | break; | |
1723 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
1724 | status = after_packet_context_state(notit); | |
1725 | break; | |
1726 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
1727 | notit->state = STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN; | |
1728 | break; | |
1729 | case STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN: | |
1730 | status = read_event_header_begin_state(notit); | |
1731 | break; | |
1732 | case STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE: | |
1733 | status = read_event_header_continue_state(notit); | |
1734 | break; | |
1735 | case STATE_AFTER_STREAM_EVENT_HEADER: | |
1736 | status = after_event_header_state(notit); | |
1737 | break; | |
1738 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN: | |
1739 | status = read_stream_event_context_begin_state(notit); | |
1740 | break; | |
1741 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE: | |
1742 | status = read_stream_event_context_continue_state(notit); | |
1743 | break; | |
1744 | case STATE_DSCOPE_EVENT_CONTEXT_BEGIN: | |
1745 | status = read_event_context_begin_state(notit); | |
1746 | break; | |
1747 | case STATE_DSCOPE_EVENT_CONTEXT_CONTINUE: | |
1748 | status = read_event_context_continue_state(notit); | |
1749 | break; | |
1750 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
1751 | status = read_event_payload_begin_state(notit); | |
1752 | break; | |
1753 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
1754 | status = read_event_payload_continue_state(notit); | |
1755 | break; | |
1756 | case STATE_EMIT_NOTIF_EVENT: | |
1757 | notit->state = STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN; | |
1758 | break; | |
1759 | case STATE_SKIP_PACKET_PADDING: | |
1760 | status = skip_packet_padding_state(notit); | |
1761 | break; | |
1762 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
1763 | notit->state = STATE_SKIP_PACKET_PADDING; | |
1764 | break; | |
fdf0e7a0 PP |
1765 | default: |
1766 | BT_LOGD("Unknown CTF plugin notification iterator state: " | |
1767 | "notit-addr=%p, state=%d", notit, notit->state); | |
1768 | abort(); | |
e98a2d6e PP |
1769 | } |
1770 | ||
fdf0e7a0 PP |
1771 | BT_LOGV("Handled state: notit-addr=%p, status=%s, " |
1772 | "prev-state=%s, cur-state=%s", | |
1773 | notit, bt_ctf_notif_iter_status_string(status), | |
1774 | state_string(state), state_string(notit->state)); | |
e98a2d6e PP |
1775 | return status; |
1776 | } | |
1777 | ||
2cf1d51e JG |
1778 | /** |
1779 | * Resets the internal state of a CTF notification iterator. | |
2cf1d51e JG |
1780 | */ |
1781 | static | |
e98a2d6e PP |
1782 | void bt_ctf_notif_iter_reset(struct bt_ctf_notif_iter *notit) |
1783 | { | |
1784 | assert(notit); | |
fdf0e7a0 | 1785 | BT_LOGD("Resetting notification iterator: addr=%p", notit); |
e98a2d6e PP |
1786 | stack_clear(notit->stack); |
1787 | BT_PUT(notit->meta.stream_class); | |
1788 | BT_PUT(notit->meta.event_class); | |
1789 | BT_PUT(notit->packet); | |
5184a1d6 | 1790 | BT_PUT(notit->stream); |
e98a2d6e PP |
1791 | put_all_dscopes(notit); |
1792 | notit->buf.addr = NULL; | |
1793 | notit->buf.sz = 0; | |
1794 | notit->buf.at = 0; | |
bb8744a7 | 1795 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
1796 | notit->buf.packet_offset = 0; |
1797 | notit->state = STATE_INIT; | |
1798 | notit->cur_content_size = -1; | |
1799 | notit->cur_packet_size = -1; | |
bb230c9b | 1800 | notit->cur_packet_offset = -1; |
e98a2d6e PP |
1801 | } |
1802 | ||
2cf1d51e JG |
1803 | static |
1804 | int bt_ctf_notif_iter_switch_packet(struct bt_ctf_notif_iter *notit) | |
1805 | { | |
1806 | int ret = 0; | |
1807 | ||
c937c615 PP |
1808 | /* |
1809 | * We don't put the stream class here because we need to make | |
1810 | * sure that all the packets processed by the same notification | |
1811 | * iterator refer to the same stream class (the first one). | |
1812 | */ | |
2cf1d51e | 1813 | assert(notit); |
bb230c9b JG |
1814 | if (notit->cur_packet_size != -1) { |
1815 | notit->cur_packet_offset += notit->cur_packet_size; | |
1816 | } | |
1817 | BT_LOGV("Switching packet: notit-addr=%p, cur=%zu, " | |
1818 | "packet-offset=%" PRId64, notit, notit->buf.at, | |
1819 | notit->cur_packet_offset); | |
2cf1d51e | 1820 | stack_clear(notit->stack); |
2cf1d51e JG |
1821 | BT_PUT(notit->meta.event_class); |
1822 | BT_PUT(notit->packet); | |
5f870343 | 1823 | BT_PUT(notit->cur_timestamp_end); |
2cf1d51e JG |
1824 | put_all_dscopes(notit); |
1825 | ||
1826 | /* | |
1827 | * Adjust current buffer so that addr points to the beginning of the new | |
1828 | * packet. | |
1829 | */ | |
1830 | if (notit->buf.addr) { | |
1831 | size_t consumed_bytes = (size_t) (notit->buf.at / CHAR_BIT); | |
1832 | ||
1833 | /* Packets are assumed to start on a byte frontier. */ | |
1834 | if (notit->buf.at % CHAR_BIT) { | |
fdf0e7a0 PP |
1835 | BT_LOGW("Cannot switch packet: current position is not a multiple of 8: " |
1836 | "notit-addr=%p, cur=%zu", notit, notit->buf.at); | |
2cf1d51e JG |
1837 | ret = -1; |
1838 | goto end; | |
1839 | } | |
1840 | ||
1841 | notit->buf.addr += consumed_bytes; | |
1842 | notit->buf.sz -= consumed_bytes; | |
1843 | notit->buf.at = 0; | |
1844 | notit->buf.packet_offset = 0; | |
fdf0e7a0 PP |
1845 | BT_LOGV("Adjusted buffer: addr=%p, size=%zu", |
1846 | notit->buf.addr, notit->buf.sz); | |
2cf1d51e JG |
1847 | } |
1848 | ||
1849 | notit->cur_content_size = -1; | |
1850 | notit->cur_packet_size = -1; | |
5f870343 | 1851 | notit->cur_sc_field_path_cache = NULL; |
fdf0e7a0 | 1852 | |
2cf1d51e JG |
1853 | end: |
1854 | return ret; | |
1855 | } | |
1856 | ||
e98a2d6e PP |
1857 | static |
1858 | struct bt_ctf_field *get_next_field(struct bt_ctf_notif_iter *notit) | |
1859 | { | |
1860 | struct bt_ctf_field *next_field = NULL; | |
1861 | struct bt_ctf_field *base_field; | |
1862 | struct bt_ctf_field_type *base_type; | |
1863 | size_t index; | |
1864 | ||
1865 | assert(!stack_empty(notit->stack)); | |
1866 | index = stack_top(notit->stack)->index; | |
1867 | base_field = stack_top(notit->stack)->base; | |
fdf0e7a0 | 1868 | assert(base_field); |
e98a2d6e | 1869 | base_type = bt_ctf_field_get_type(base_field); |
fdf0e7a0 | 1870 | assert(base_type); |
e98a2d6e PP |
1871 | |
1872 | switch (bt_ctf_field_type_get_type_id(base_type)) { | |
1487a16a | 1873 | case BT_CTF_FIELD_TYPE_ID_STRUCT: |
e98a2d6e PP |
1874 | next_field = bt_ctf_field_structure_get_field_by_index( |
1875 | base_field, index); | |
1876 | break; | |
1487a16a | 1877 | case BT_CTF_FIELD_TYPE_ID_ARRAY: |
e98a2d6e PP |
1878 | next_field = bt_ctf_field_array_get_field(base_field, index); |
1879 | break; | |
1487a16a | 1880 | case BT_CTF_FIELD_TYPE_ID_SEQUENCE: |
e98a2d6e PP |
1881 | next_field = bt_ctf_field_sequence_get_field(base_field, index); |
1882 | break; | |
1487a16a | 1883 | case BT_CTF_FIELD_TYPE_ID_VARIANT: |
e98a2d6e PP |
1884 | next_field = bt_ctf_field_variant_get_current_field(base_field); |
1885 | break; | |
1886 | default: | |
fdf0e7a0 PP |
1887 | BT_LOGF("Unknown base field type ID: " |
1888 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
1889 | notit, base_type, | |
1890 | bt_ctf_field_type_id_string( | |
1891 | bt_ctf_field_type_get_type_id(base_type))); | |
0fbb9a9f | 1892 | abort(); |
e98a2d6e PP |
1893 | } |
1894 | ||
e98a2d6e | 1895 | BT_PUT(base_type); |
e98a2d6e PP |
1896 | return next_field; |
1897 | } | |
1898 | ||
c44c3e70 JG |
1899 | static |
1900 | void update_clock_state(uint64_t *state, | |
1901 | struct bt_ctf_field *value_field) | |
1902 | { | |
1903 | struct bt_ctf_field_type *value_type = NULL; | |
1904 | uint64_t requested_new_value; | |
1905 | uint64_t requested_new_value_mask; | |
1906 | uint64_t cur_value_masked; | |
1907 | int requested_new_value_size; | |
1908 | int ret; | |
1909 | ||
1910 | value_type = bt_ctf_field_get_type(value_field); | |
1911 | assert(value_type); | |
fdf0e7a0 | 1912 | assert(bt_ctf_field_type_is_integer(value_type)); |
c44c3e70 JG |
1913 | requested_new_value_size = |
1914 | bt_ctf_field_type_integer_get_size(value_type); | |
1915 | assert(requested_new_value_size > 0); | |
c44c3e70 JG |
1916 | ret = bt_ctf_field_unsigned_integer_get_value(value_field, |
1917 | &requested_new_value); | |
1918 | assert(!ret); | |
1919 | ||
1920 | /* | |
1921 | * Special case for a 64-bit new value, which is the limit | |
1922 | * of a clock value as of this version: overwrite the | |
1923 | * current value directly. | |
1924 | */ | |
1925 | if (requested_new_value_size == 64) { | |
1926 | *state = requested_new_value; | |
1927 | goto end; | |
1928 | } | |
1929 | ||
1930 | requested_new_value_mask = (1ULL << requested_new_value_size) - 1; | |
1931 | cur_value_masked = *state & requested_new_value_mask; | |
1932 | ||
1933 | if (requested_new_value < cur_value_masked) { | |
1934 | /* | |
1935 | * It looks like a wrap happened on the number of bits | |
1936 | * of the requested new value. Assume that the clock | |
1937 | * value wrapped only one time. | |
1938 | */ | |
1939 | *state += requested_new_value_mask + 1; | |
1940 | } | |
1941 | ||
1942 | /* Clear the low bits of the current clock value. */ | |
1943 | *state &= ~requested_new_value_mask; | |
1944 | ||
1945 | /* Set the low bits of the current clock value. */ | |
1946 | *state |= requested_new_value; | |
1947 | end: | |
fdf0e7a0 PP |
1948 | BT_LOGV("Updated clock's value from integer field's value: " |
1949 | "value=%" PRIu64, *state); | |
c44c3e70 JG |
1950 | bt_put(value_type); |
1951 | } | |
1952 | ||
1953 | static | |
1954 | enum bt_ctf_btr_status update_clock(struct bt_ctf_notif_iter *notit, | |
c44c3e70 JG |
1955 | struct bt_ctf_field *int_field) |
1956 | { | |
ac0c6bdd | 1957 | gboolean clock_class_found; |
501a8569 | 1958 | uint64_t *clock_state = NULL; |
f45bfe88 | 1959 | struct bt_ctf_field_type *int_field_type = NULL; |
c44c3e70 | 1960 | enum bt_ctf_btr_status ret = BT_CTF_BTR_STATUS_OK; |
f45bfe88 | 1961 | struct bt_ctf_clock_class *clock_class = NULL; |
c44c3e70 | 1962 | |
f45bfe88 | 1963 | int_field_type = bt_ctf_field_get_type(int_field); |
fdf0e7a0 | 1964 | assert(int_field_type); |
f45bfe88 PP |
1965 | clock_class = bt_ctf_field_type_integer_get_mapped_clock_class( |
1966 | int_field_type); | |
ac0c6bdd | 1967 | if (likely(!clock_class)) { |
f45bfe88 | 1968 | goto end; |
c44c3e70 JG |
1969 | } |
1970 | ||
ac0c6bdd | 1971 | clock_class_found = g_hash_table_lookup_extended(notit->clock_states, |
fdf0e7a0 | 1972 | clock_class, NULL, (gpointer) &clock_state); |
501a8569 | 1973 | if (!clock_class_found) { |
c44c3e70 JG |
1974 | clock_state = g_new0(uint64_t, 1); |
1975 | if (!clock_state) { | |
fdf0e7a0 | 1976 | BT_LOGE_STR("Failed to allocate a uint64_t."); |
c44c3e70 JG |
1977 | ret = BT_CTF_BTR_STATUS_ENOMEM; |
1978 | goto end; | |
1979 | } | |
fdf0e7a0 | 1980 | |
ac0c6bdd | 1981 | g_hash_table_insert(notit->clock_states, bt_get(clock_class), |
fdf0e7a0 | 1982 | clock_state); |
c44c3e70 JG |
1983 | } |
1984 | ||
1985 | /* Update the clock's state. */ | |
fdf0e7a0 PP |
1986 | BT_LOGV("Updating notification iterator's clock's value from integer field: " |
1987 | "notit-addr=%p, clock-class-addr=%p, " | |
1988 | "clock-class-name=\"%s\", value=%" PRIu64, | |
1989 | notit, clock_class, | |
1990 | bt_ctf_clock_class_get_name(clock_class), *clock_state); | |
c44c3e70 JG |
1991 | update_clock_state(clock_state, int_field); |
1992 | end: | |
f45bfe88 | 1993 | bt_put(int_field_type); |
ac0c6bdd | 1994 | bt_put(clock_class); |
c44c3e70 JG |
1995 | return ret; |
1996 | } | |
1997 | ||
e98a2d6e | 1998 | static |
5f870343 JG |
1999 | enum bt_ctf_btr_status btr_unsigned_int_common(uint64_t value, |
2000 | struct bt_ctf_field_type *type, void *data, | |
f45bfe88 | 2001 | struct bt_ctf_field **out_int_field) |
e98a2d6e PP |
2002 | { |
2003 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2004 | struct bt_ctf_field *field = NULL; | |
2005 | struct bt_ctf_field *int_field = NULL; | |
2006 | struct bt_ctf_notif_iter *notit = data; | |
2007 | int ret; | |
2008 | ||
fdf0e7a0 PP |
2009 | BT_LOGV("Common unsigned integer function called from BTR: " |
2010 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2011 | "ft-id=%s, value=%" PRIu64, | |
2012 | notit, notit->btr, type, | |
2013 | bt_ctf_field_type_id_string( | |
2014 | bt_ctf_field_type_get_type_id(type)), | |
2015 | value); | |
2016 | ||
5f870343 | 2017 | /* Create next field */ |
e98a2d6e PP |
2018 | field = get_next_field(notit); |
2019 | if (!field) { | |
fdf0e7a0 | 2020 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
e98a2d6e | 2021 | status = BT_CTF_BTR_STATUS_ERROR; |
c44c3e70 | 2022 | goto end_no_put; |
e98a2d6e PP |
2023 | } |
2024 | ||
2025 | switch(bt_ctf_field_type_get_type_id(type)) { | |
1487a16a | 2026 | case BT_CTF_FIELD_TYPE_ID_INTEGER: |
e98a2d6e PP |
2027 | /* Integer field is created field */ |
2028 | BT_MOVE(int_field, field); | |
c44c3e70 | 2029 | bt_get(type); |
e98a2d6e | 2030 | break; |
1487a16a | 2031 | case BT_CTF_FIELD_TYPE_ID_ENUM: |
e98a2d6e | 2032 | int_field = bt_ctf_field_enumeration_get_container(field); |
fdf0e7a0 | 2033 | assert(int_field); |
c44c3e70 | 2034 | type = bt_ctf_field_get_type(int_field); |
fdf0e7a0 | 2035 | assert(type); |
e98a2d6e PP |
2036 | break; |
2037 | default: | |
fdf0e7a0 PP |
2038 | BT_LOGF("Unexpected field type ID: " |
2039 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
2040 | notit, type, | |
2041 | bt_ctf_field_type_id_string( | |
2042 | bt_ctf_field_type_get_type_id(type))); | |
0fbb9a9f | 2043 | abort(); |
e98a2d6e PP |
2044 | } |
2045 | ||
fdf0e7a0 | 2046 | assert(int_field); |
5f870343 | 2047 | ret = bt_ctf_field_unsigned_integer_set_value(int_field, value); |
fdf0e7a0 | 2048 | assert(ret == 0); |
e98a2d6e | 2049 | stack_top(notit->stack)->index++; |
f45bfe88 | 2050 | *out_int_field = int_field; |
e98a2d6e | 2051 | BT_PUT(field); |
c44c3e70 | 2052 | BT_PUT(type); |
fdf0e7a0 | 2053 | |
c44c3e70 | 2054 | end_no_put: |
e98a2d6e PP |
2055 | return status; |
2056 | } | |
2057 | ||
5f870343 JG |
2058 | static |
2059 | enum bt_ctf_btr_status btr_timestamp_end_cb(void *value, | |
2060 | struct bt_ctf_field_type *type, void *data) | |
2061 | { | |
2062 | enum bt_ctf_btr_status status; | |
2063 | struct bt_ctf_field *field = NULL; | |
2064 | struct bt_ctf_notif_iter *notit = data; | |
2065 | ||
fdf0e7a0 PP |
2066 | BT_LOGV("`timestamp_end` unsigned integer function called from BTR: " |
2067 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2068 | "ft-id=%s", | |
2069 | notit, notit->btr, type, | |
2070 | bt_ctf_field_type_id_string( | |
2071 | bt_ctf_field_type_get_type_id(type))); | |
5f870343 JG |
2072 | status = btr_unsigned_int_common(*((uint64_t *) value), type, data, |
2073 | &field); | |
2074 | ||
2075 | /* Set as the current packet's timestamp_end field. */ | |
2076 | BT_MOVE(notit->cur_timestamp_end, field); | |
2077 | return status; | |
2078 | } | |
2079 | ||
e98a2d6e PP |
2080 | static |
2081 | enum bt_ctf_btr_status btr_unsigned_int_cb(uint64_t value, | |
2082 | struct bt_ctf_field_type *type, void *data) | |
5f870343 JG |
2083 | { |
2084 | struct bt_ctf_notif_iter *notit = data; | |
2085 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2086 | struct bt_ctf_field *field = NULL; | |
2087 | struct field_cb_override *override; | |
2088 | ||
fdf0e7a0 PP |
2089 | BT_LOGV("Unsigned integer function called from BTR: " |
2090 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2091 | "ft-id=%s, value=%" PRIu64, | |
2092 | notit, notit->btr, type, | |
2093 | bt_ctf_field_type_id_string( | |
2094 | bt_ctf_field_type_get_type_id(type)), | |
2095 | value); | |
2096 | override = g_hash_table_lookup(notit->field_overrides, type); | |
5f870343 | 2097 | if (unlikely(override)) { |
fdf0e7a0 | 2098 | /* Override function logs errors */ |
5f870343 JG |
2099 | status = override->func(&value, type, override->data); |
2100 | goto end; | |
2101 | } | |
2102 | ||
2103 | status = btr_unsigned_int_common(value, type, data, &field); | |
2104 | if (status != BT_CTF_BTR_STATUS_OK) { | |
fdf0e7a0 | 2105 | /* btr_unsigned_int_common() logs errors */ |
5f870343 JG |
2106 | goto end; |
2107 | } | |
2108 | ||
f45bfe88 | 2109 | status = update_clock(notit, field); |
5f870343 JG |
2110 | BT_PUT(field); |
2111 | end: | |
2112 | return status; | |
2113 | } | |
2114 | ||
2115 | static | |
2116 | enum bt_ctf_btr_status btr_signed_int_cb(int64_t value, | |
2117 | struct bt_ctf_field_type *type, void *data) | |
e98a2d6e PP |
2118 | { |
2119 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2120 | struct bt_ctf_field *field = NULL; | |
2121 | struct bt_ctf_field *int_field = NULL; | |
2122 | struct bt_ctf_notif_iter *notit = data; | |
2123 | int ret; | |
2124 | ||
fdf0e7a0 PP |
2125 | BT_LOGV("Signed integer function called from BTR: " |
2126 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2127 | "ft-id=%s, value=%" PRId64, | |
2128 | notit, notit->btr, type, | |
2129 | bt_ctf_field_type_id_string( | |
2130 | bt_ctf_field_type_get_type_id(type)), | |
2131 | value); | |
2132 | ||
5f870343 | 2133 | /* create next field */ |
e98a2d6e PP |
2134 | field = get_next_field(notit); |
2135 | if (!field) { | |
fdf0e7a0 | 2136 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
e98a2d6e | 2137 | status = BT_CTF_BTR_STATUS_ERROR; |
c44c3e70 | 2138 | goto end_no_put; |
e98a2d6e PP |
2139 | } |
2140 | ||
2141 | switch(bt_ctf_field_type_get_type_id(type)) { | |
1487a16a | 2142 | case BT_CTF_FIELD_TYPE_ID_INTEGER: |
e98a2d6e PP |
2143 | /* Integer field is created field */ |
2144 | BT_MOVE(int_field, field); | |
c44c3e70 | 2145 | bt_get(type); |
e98a2d6e | 2146 | break; |
1487a16a | 2147 | case BT_CTF_FIELD_TYPE_ID_ENUM: |
e98a2d6e | 2148 | int_field = bt_ctf_field_enumeration_get_container(field); |
fdf0e7a0 | 2149 | assert(int_field); |
c44c3e70 | 2150 | type = bt_ctf_field_get_type(int_field); |
fdf0e7a0 | 2151 | assert(type); |
e98a2d6e PP |
2152 | break; |
2153 | default: | |
fdf0e7a0 PP |
2154 | BT_LOGF("Unexpected field type ID: " |
2155 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
2156 | notit, type, | |
2157 | bt_ctf_field_type_id_string( | |
2158 | bt_ctf_field_type_get_type_id(type))); | |
0fbb9a9f | 2159 | abort(); |
e98a2d6e PP |
2160 | } |
2161 | ||
fdf0e7a0 | 2162 | assert(int_field); |
5f870343 | 2163 | ret = bt_ctf_field_signed_integer_set_value(int_field, value); |
e98a2d6e PP |
2164 | assert(!ret); |
2165 | stack_top(notit->stack)->index++; | |
f45bfe88 | 2166 | status = update_clock(notit, int_field); |
e98a2d6e PP |
2167 | BT_PUT(field); |
2168 | BT_PUT(int_field); | |
c44c3e70 | 2169 | BT_PUT(type); |
fdf0e7a0 | 2170 | |
c44c3e70 | 2171 | end_no_put: |
e98a2d6e PP |
2172 | return status; |
2173 | } | |
2174 | ||
2175 | static | |
2176 | enum bt_ctf_btr_status btr_floating_point_cb(double value, | |
2177 | struct bt_ctf_field_type *type, void *data) | |
2178 | { | |
2179 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2180 | struct bt_ctf_field *field = NULL; | |
2181 | struct bt_ctf_notif_iter *notit = data; | |
2182 | int ret; | |
2183 | ||
fdf0e7a0 PP |
2184 | BT_LOGV("Floating point number function called from BTR: " |
2185 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2186 | "ft-id=%s, value=%f", | |
2187 | notit, notit->btr, type, | |
2188 | bt_ctf_field_type_id_string( | |
2189 | bt_ctf_field_type_get_type_id(type)), | |
2190 | value); | |
2191 | ||
e98a2d6e PP |
2192 | /* Create next field */ |
2193 | field = get_next_field(notit); | |
2194 | if (!field) { | |
fdf0e7a0 | 2195 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
e98a2d6e PP |
2196 | status = BT_CTF_BTR_STATUS_ERROR; |
2197 | goto end; | |
2198 | } | |
2199 | ||
2200 | ret = bt_ctf_field_floating_point_set_value(field, value); | |
2201 | assert(!ret); | |
2202 | stack_top(notit->stack)->index++; | |
2203 | ||
2204 | end: | |
2205 | BT_PUT(field); | |
e98a2d6e PP |
2206 | return status; |
2207 | } | |
2208 | ||
2209 | static | |
2210 | enum bt_ctf_btr_status btr_string_begin_cb( | |
2211 | struct bt_ctf_field_type *type, void *data) | |
2212 | { | |
2213 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2214 | struct bt_ctf_field *field = NULL; | |
2215 | struct bt_ctf_notif_iter *notit = data; | |
2216 | int ret; | |
2217 | ||
fdf0e7a0 PP |
2218 | BT_LOGV("String (beginning) function called from BTR: " |
2219 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2220 | "ft-id=%s", | |
2221 | notit, notit->btr, type, | |
2222 | bt_ctf_field_type_id_string( | |
2223 | bt_ctf_field_type_get_type_id(type))); | |
2224 | ||
e98a2d6e PP |
2225 | /* Create next field */ |
2226 | field = get_next_field(notit); | |
2227 | if (!field) { | |
fdf0e7a0 | 2228 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
e98a2d6e PP |
2229 | status = BT_CTF_BTR_STATUS_ERROR; |
2230 | goto end; | |
2231 | } | |
2232 | ||
2233 | /* | |
2234 | * Push on stack. Not a compound type per se, but we know that only | |
2235 | * btr_string_cb() may be called between this call and a subsequent | |
2236 | * call to btr_string_end_cb(). | |
2237 | */ | |
2238 | ret = stack_push(notit->stack, field); | |
2239 | if (ret) { | |
fdf0e7a0 PP |
2240 | BT_LOGE("Cannot push string field on stack: " |
2241 | "notit-addr=%p, field-addr=%p", notit, field); | |
e98a2d6e PP |
2242 | status = BT_CTF_BTR_STATUS_ERROR; |
2243 | goto end; | |
2244 | } | |
2245 | ||
e5df2ae3 JG |
2246 | /* |
2247 | * Initialize string field payload to an empty string since in the | |
2248 | * case of a length 0 string the btr_string_cb won't be called and | |
2249 | * we will end up with an unset string payload. | |
2250 | */ | |
2251 | ret = bt_ctf_field_string_set_value(field, ""); | |
2252 | if (ret) { | |
fdf0e7a0 PP |
2253 | BT_LOGE("Cannot initialize string field's value to an empty string: " |
2254 | "notit-addr=%p, field-addr=%p, ret=%d", | |
2255 | notit, field, ret); | |
e5df2ae3 JG |
2256 | status = BT_CTF_BTR_STATUS_ERROR; |
2257 | goto end; | |
2258 | } | |
2259 | ||
e98a2d6e PP |
2260 | end: |
2261 | BT_PUT(field); | |
2262 | ||
2263 | return status; | |
2264 | } | |
2265 | ||
2266 | static | |
2267 | enum bt_ctf_btr_status btr_string_cb(const char *value, | |
2268 | size_t len, struct bt_ctf_field_type *type, void *data) | |
2269 | { | |
2270 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2271 | struct bt_ctf_field *field = NULL; | |
2272 | struct bt_ctf_notif_iter *notit = data; | |
2273 | int ret; | |
2274 | ||
fdf0e7a0 PP |
2275 | BT_LOGV("String (substring) function called from BTR: " |
2276 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2277 | "ft-id=%s, string-length=%zu", | |
2278 | notit, notit->btr, type, | |
2279 | bt_ctf_field_type_id_string( | |
2280 | bt_ctf_field_type_get_type_id(type)), | |
2281 | len); | |
2282 | ||
e98a2d6e PP |
2283 | /* Get string field */ |
2284 | field = stack_top(notit->stack)->base; | |
2285 | assert(field); | |
2286 | ||
2287 | /* Append current string */ | |
2288 | ret = bt_ctf_field_string_append_len(field, value, len); | |
2289 | if (ret) { | |
fdf0e7a0 PP |
2290 | BT_LOGE("Cannot append substring to string field's value: " |
2291 | "notit-addr=%p, field-addr=%p, string-length=%zu, " | |
2292 | "ret=%d", notit, field, len, ret); | |
e98a2d6e PP |
2293 | status = BT_CTF_BTR_STATUS_ERROR; |
2294 | goto end; | |
2295 | } | |
2296 | ||
2297 | end: | |
2298 | return status; | |
2299 | } | |
2300 | ||
2301 | static | |
2302 | enum bt_ctf_btr_status btr_string_end_cb( | |
2303 | struct bt_ctf_field_type *type, void *data) | |
2304 | { | |
2305 | struct bt_ctf_notif_iter *notit = data; | |
2306 | ||
fdf0e7a0 PP |
2307 | BT_LOGV("String (end) function called from BTR: " |
2308 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2309 | "ft-id=%s", | |
2310 | notit, notit->btr, type, | |
2311 | bt_ctf_field_type_id_string( | |
2312 | bt_ctf_field_type_get_type_id(type))); | |
2313 | ||
e98a2d6e PP |
2314 | /* Pop string field */ |
2315 | stack_pop(notit->stack); | |
2316 | ||
2317 | /* Go to next field */ | |
2318 | stack_top(notit->stack)->index++; | |
e98a2d6e PP |
2319 | return BT_CTF_BTR_STATUS_OK; |
2320 | } | |
2321 | ||
2322 | enum bt_ctf_btr_status btr_compound_begin_cb( | |
2323 | struct bt_ctf_field_type *type, void *data) | |
2324 | { | |
2325 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2326 | struct bt_ctf_notif_iter *notit = data; | |
2327 | struct bt_ctf_field *field; | |
2328 | int ret; | |
2329 | ||
fdf0e7a0 PP |
2330 | BT_LOGV("Compound (beginning) function called from BTR: " |
2331 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2332 | "ft-id=%s", | |
2333 | notit, notit->btr, type, | |
2334 | bt_ctf_field_type_id_string( | |
2335 | bt_ctf_field_type_get_type_id(type))); | |
2336 | ||
e98a2d6e PP |
2337 | /* Create field */ |
2338 | if (stack_empty(notit->stack)) { | |
2339 | /* Root: create dynamic scope field */ | |
2340 | *notit->cur_dscope_field = bt_ctf_field_create(type); | |
2341 | field = *notit->cur_dscope_field; | |
2342 | ||
2343 | /* | |
2344 | * Field will be put at the end of this function | |
2345 | * (stack_push() will take one reference, but this | |
2346 | * reference is lost upon the equivalent stack_pop() | |
2347 | * later), so also get it for our context to own it. | |
2348 | */ | |
2349 | bt_get(*notit->cur_dscope_field); | |
fdf0e7a0 PP |
2350 | |
2351 | if (!field) { | |
2352 | BT_LOGE("Cannot create compound field: " | |
2353 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
2354 | notit, type, | |
2355 | bt_ctf_field_type_id_string( | |
2356 | bt_ctf_field_type_get_type_id(type))); | |
2357 | status = BT_CTF_BTR_STATUS_ERROR; | |
2358 | goto end; | |
2359 | } | |
e98a2d6e PP |
2360 | } else { |
2361 | field = get_next_field(notit); | |
fdf0e7a0 PP |
2362 | if (!field) { |
2363 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); | |
2364 | status = BT_CTF_BTR_STATUS_ERROR; | |
2365 | goto end; | |
2366 | } | |
e98a2d6e PP |
2367 | } |
2368 | ||
2369 | /* Push field */ | |
fdf0e7a0 | 2370 | assert(field); |
e98a2d6e PP |
2371 | ret = stack_push(notit->stack, field); |
2372 | if (ret) { | |
fdf0e7a0 PP |
2373 | BT_LOGE("Cannot push compound field onto the stack: " |
2374 | "notit-addr=%p, ft-addr=%p, ft-id=%s, ret=%d", | |
2375 | notit, type, | |
2376 | bt_ctf_field_type_id_string( | |
2377 | bt_ctf_field_type_get_type_id(type)), | |
2378 | ret); | |
e98a2d6e PP |
2379 | status = BT_CTF_BTR_STATUS_ERROR; |
2380 | goto end; | |
2381 | } | |
2382 | ||
2383 | end: | |
2384 | BT_PUT(field); | |
2385 | ||
2386 | return status; | |
2387 | } | |
2388 | ||
2389 | enum bt_ctf_btr_status btr_compound_end_cb( | |
2390 | struct bt_ctf_field_type *type, void *data) | |
2391 | { | |
2392 | struct bt_ctf_notif_iter *notit = data; | |
2393 | ||
fdf0e7a0 PP |
2394 | BT_LOGV("Compound (end) function called from BTR: " |
2395 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2396 | "ft-id=%s", | |
2397 | notit, notit->btr, type, | |
2398 | bt_ctf_field_type_id_string( | |
2399 | bt_ctf_field_type_get_type_id(type))); | |
e98a2d6e PP |
2400 | assert(!stack_empty(notit->stack)); |
2401 | ||
2402 | /* Pop stack */ | |
2403 | stack_pop(notit->stack); | |
2404 | ||
2405 | /* If the stack is not empty, increment the base's index */ | |
2406 | if (!stack_empty(notit->stack)) { | |
2407 | stack_top(notit->stack)->index++; | |
2408 | } | |
2409 | ||
2410 | return BT_CTF_BTR_STATUS_OK; | |
2411 | } | |
2412 | ||
2413 | static | |
2414 | struct bt_ctf_field *resolve_field(struct bt_ctf_notif_iter *notit, | |
2415 | struct bt_ctf_field_path *path) | |
2416 | { | |
2417 | struct bt_ctf_field *field = NULL; | |
2418 | unsigned int i; | |
2419 | ||
fdf0e7a0 PP |
2420 | if (BT_LOG_ON_VERBOSE) { |
2421 | GString *gstr = bt_ctf_field_path_string(path); | |
2422 | ||
2423 | BT_LOGV("Resolving field path: notit-addr=%p, field-path=\"%s\"", | |
2424 | notit, gstr ? gstr->str : NULL); | |
2425 | ||
2426 | if (gstr) { | |
2427 | g_string_free(gstr, TRUE); | |
2428 | } | |
2429 | } | |
2430 | ||
e98a2d6e PP |
2431 | switch (bt_ctf_field_path_get_root_scope(path)) { |
2432 | case BT_CTF_SCOPE_TRACE_PACKET_HEADER: | |
2433 | field = notit->dscopes.trace_packet_header; | |
2434 | break; | |
2435 | case BT_CTF_SCOPE_STREAM_PACKET_CONTEXT: | |
2436 | field = notit->dscopes.stream_packet_context; | |
2437 | break; | |
2438 | case BT_CTF_SCOPE_STREAM_EVENT_HEADER: | |
2439 | field = notit->dscopes.stream_event_header; | |
2440 | break; | |
2441 | case BT_CTF_SCOPE_STREAM_EVENT_CONTEXT: | |
2442 | field = notit->dscopes.stream_event_context; | |
2443 | break; | |
2444 | case BT_CTF_SCOPE_EVENT_CONTEXT: | |
2445 | field = notit->dscopes.event_context; | |
2446 | break; | |
2447 | case BT_CTF_SCOPE_EVENT_FIELDS: | |
2448 | field = notit->dscopes.event_payload; | |
2449 | break; | |
2450 | default: | |
fdf0e7a0 PP |
2451 | BT_LOGF("Cannot resolve field path: unknown scope: " |
2452 | "notit-addr=%p, root-scope=%s", | |
2453 | notit, bt_ctf_scope_string( | |
2454 | bt_ctf_field_path_get_root_scope(path))); | |
2455 | abort(); | |
e98a2d6e PP |
2456 | } |
2457 | ||
2458 | if (!field) { | |
fdf0e7a0 PP |
2459 | BT_LOGW("Cannot resolve field path: root field not found: " |
2460 | "notit-addr=%p, root-scope=%s", | |
2461 | notit, bt_ctf_scope_string( | |
2462 | bt_ctf_field_path_get_root_scope(path))); | |
e98a2d6e PP |
2463 | goto end; |
2464 | } | |
2465 | ||
2466 | bt_get(field); | |
2467 | ||
2468 | for (i = 0; i < bt_ctf_field_path_get_index_count(path); ++i) { | |
2469 | struct bt_ctf_field *next_field = NULL; | |
2470 | struct bt_ctf_field_type *field_type; | |
2471 | int index = bt_ctf_field_path_get_index(path, i); | |
2472 | ||
2473 | field_type = bt_ctf_field_get_type(field); | |
fdf0e7a0 | 2474 | assert(field_type); |
e98a2d6e PP |
2475 | |
2476 | if (is_struct_type(field_type)) { | |
2477 | next_field = bt_ctf_field_structure_get_field_by_index( | |
2478 | field, index); | |
2479 | } else if (is_variant_type(field_type)) { | |
2480 | next_field = | |
2481 | bt_ctf_field_variant_get_current_field(field); | |
2482 | } | |
2483 | ||
2484 | BT_PUT(field); | |
2485 | BT_PUT(field_type); | |
2486 | ||
2487 | if (!next_field) { | |
fdf0e7a0 PP |
2488 | BT_LOGW("Cannot find next field: " |
2489 | "notit-addr=%p, ft-addr=%p, ft-id=%s, index=%d", | |
2490 | notit, field_type, | |
2491 | bt_ctf_field_type_id_string( | |
2492 | bt_ctf_field_type_get_type_id(field_type)), | |
2493 | index); | |
e98a2d6e PP |
2494 | goto end; |
2495 | } | |
2496 | ||
2497 | /* Move next field -> field */ | |
2498 | BT_MOVE(field, next_field); | |
2499 | } | |
2500 | ||
2501 | end: | |
2502 | return field; | |
2503 | } | |
2504 | ||
2505 | static | |
2506 | int64_t btr_get_sequence_length_cb(struct bt_ctf_field_type *type, void *data) | |
2507 | { | |
2508 | int64_t ret = -1; | |
2509 | int iret; | |
fdf0e7a0 | 2510 | struct bt_ctf_field *seq_field; |
e98a2d6e PP |
2511 | struct bt_ctf_field_path *field_path; |
2512 | struct bt_ctf_notif_iter *notit = data; | |
2cf1d51e | 2513 | struct bt_ctf_field *length_field = NULL; |
e98a2d6e PP |
2514 | uint64_t length; |
2515 | ||
2516 | field_path = bt_ctf_field_type_sequence_get_length_field_path(type); | |
fdf0e7a0 | 2517 | assert(field_path); |
2cf1d51e JG |
2518 | length_field = resolve_field(notit, field_path); |
2519 | if (!length_field) { | |
fdf0e7a0 PP |
2520 | BT_LOGW("Cannot resolve sequence field type's length field path: " |
2521 | "notit-addr=%p, ft-addr=%p", | |
2522 | notit, type); | |
e98a2d6e PP |
2523 | goto end; |
2524 | } | |
2525 | ||
2cf1d51e | 2526 | iret = bt_ctf_field_unsigned_integer_get_value(length_field, &length); |
e98a2d6e | 2527 | if (iret) { |
fdf0e7a0 PP |
2528 | BT_LOGE("Cannot get value of sequence length field: " |
2529 | "notit-addr=%p, field-addr=%p", | |
2530 | notit, length_field); | |
e98a2d6e PP |
2531 | goto end; |
2532 | } | |
2533 | ||
fdf0e7a0 PP |
2534 | seq_field = stack_top(notit->stack)->base; |
2535 | iret = bt_ctf_field_sequence_set_length(seq_field, length_field); | |
2cf1d51e | 2536 | if (iret) { |
fdf0e7a0 PP |
2537 | BT_LOGE("Cannot set sequence field's length field: " |
2538 | "notit-addr=%p, seq-field-addr=%p, " | |
2539 | "length-field-addr=%p, ", | |
2540 | notit, seq_field, length_field); | |
2cf1d51e JG |
2541 | goto end; |
2542 | } | |
fdf0e7a0 | 2543 | |
e98a2d6e PP |
2544 | ret = (int64_t) length; |
2545 | ||
2546 | end: | |
2cf1d51e | 2547 | BT_PUT(length_field); |
e98a2d6e PP |
2548 | BT_PUT(field_path); |
2549 | ||
2550 | return ret; | |
2551 | } | |
2552 | ||
2553 | static | |
2554 | struct bt_ctf_field_type *btr_get_variant_type_cb( | |
2555 | struct bt_ctf_field_type *type, void *data) | |
2556 | { | |
2557 | struct bt_ctf_field_path *path; | |
2558 | struct bt_ctf_notif_iter *notit = data; | |
fdf0e7a0 | 2559 | struct bt_ctf_field *var_field; |
e98a2d6e PP |
2560 | struct bt_ctf_field *tag_field = NULL; |
2561 | struct bt_ctf_field *selected_field = NULL; | |
2562 | struct bt_ctf_field_type *selected_field_type = NULL; | |
2563 | ||
2564 | path = bt_ctf_field_type_variant_get_tag_field_path(type); | |
fdf0e7a0 | 2565 | assert(path); |
e98a2d6e PP |
2566 | tag_field = resolve_field(notit, path); |
2567 | if (!tag_field) { | |
fdf0e7a0 PP |
2568 | BT_LOGW("Cannot resolve variant field type's tag field path: " |
2569 | "notit-addr=%p, ft-addr=%p", | |
2570 | notit, type); | |
e98a2d6e PP |
2571 | goto end; |
2572 | } | |
2573 | ||
2574 | /* | |
2575 | * We found the enumeration tag field instance which should be | |
2576 | * able to select a current field for this variant. This | |
2577 | * callback function we're in is called _after_ | |
2578 | * compound_begin(), so the current stack top's base field is | |
2579 | * the variant field in question. We get the selected field here | |
2580 | * thanks to this tag field (thus creating the selected field), | |
2581 | * which will also provide us with its type. Then, this field | |
2582 | * will remain the current selected one until the next callback | |
2583 | * function call which is used to fill the current selected | |
2584 | * field. | |
2585 | */ | |
fdf0e7a0 PP |
2586 | var_field = stack_top(notit->stack)->base; |
2587 | selected_field = bt_ctf_field_variant_get_field(var_field, tag_field); | |
e98a2d6e | 2588 | if (!selected_field) { |
fdf0e7a0 PP |
2589 | BT_LOGW("Cannot get variant field's selection using tag field: " |
2590 | "notit-addr=%p, var-field-addr=%p, tag-field-addr=%p", | |
2591 | notit, var_field, tag_field); | |
e98a2d6e PP |
2592 | goto end; |
2593 | } | |
2594 | ||
2595 | selected_field_type = bt_ctf_field_get_type(selected_field); | |
2596 | ||
2597 | end: | |
2598 | BT_PUT(tag_field); | |
2599 | BT_PUT(selected_field); | |
f77ae72a | 2600 | BT_PUT(path); |
e98a2d6e PP |
2601 | |
2602 | return selected_field_type; | |
2603 | } | |
2604 | ||
1556a1af JG |
2605 | static |
2606 | int set_event_clocks(struct bt_ctf_event *event, | |
2607 | struct bt_ctf_notif_iter *notit) | |
2608 | { | |
2609 | int ret; | |
2610 | GHashTableIter iter; | |
ac0c6bdd | 2611 | struct bt_ctf_clock_class *clock_class; |
1556a1af JG |
2612 | uint64_t *clock_state; |
2613 | ||
2614 | g_hash_table_iter_init(&iter, notit->clock_states); | |
2615 | ||
ac0c6bdd | 2616 | while (g_hash_table_iter_next(&iter, (gpointer) &clock_class, |
1556a1af JG |
2617 | (gpointer) &clock_state)) { |
2618 | struct bt_ctf_clock_value *clock_value; | |
2619 | ||
ac0c6bdd PP |
2620 | clock_value = bt_ctf_clock_value_create(clock_class, |
2621 | *clock_state); | |
1556a1af | 2622 | if (!clock_value) { |
fdf0e7a0 PP |
2623 | BT_LOGE("Cannot create clock value from clock class: " |
2624 | "notit-addr=%p, clock-class-addr=%p, " | |
2625 | "clock-class-name=\"%s\"", | |
2626 | notit, clock_class, | |
2627 | bt_ctf_clock_class_get_name(clock_class)); | |
1556a1af JG |
2628 | ret = -1; |
2629 | goto end; | |
2630 | } | |
3f3c46b8 | 2631 | ret = bt_ctf_event_set_clock_value(event, clock_value); |
1556a1af JG |
2632 | bt_put(clock_value); |
2633 | if (ret) { | |
fdf0e7a0 PP |
2634 | struct bt_ctf_event_class *event_class = |
2635 | bt_ctf_event_get_class(event); | |
2636 | ||
2637 | assert(event_class); | |
2638 | BT_LOGE("Cannot set event's clock value: " | |
2639 | "notit-addr=%p, event-addr=%p, " | |
2640 | "event-class-name=\"%s\", " | |
2641 | "event-class-id=%" PRId64 ", " | |
2642 | "clock-class-addr=%p, " | |
2643 | "clock-class-name=\"%s\", " | |
2644 | "clock-value-addr=%p", | |
2645 | notit, event, | |
2646 | bt_ctf_event_class_get_name(event_class), | |
2647 | bt_ctf_event_class_get_id(event_class), | |
2648 | clock_class, | |
2649 | bt_ctf_clock_class_get_name(clock_class), | |
2650 | clock_value); | |
2651 | bt_put(event_class); | |
1556a1af JG |
2652 | goto end; |
2653 | } | |
2654 | } | |
fdf0e7a0 | 2655 | |
1556a1af JG |
2656 | ret = 0; |
2657 | end: | |
2658 | return ret; | |
2659 | } | |
2660 | ||
78586d8a JG |
2661 | static |
2662 | struct bt_ctf_event *create_event(struct bt_ctf_notif_iter *notit) | |
e98a2d6e | 2663 | { |
e98a2d6e | 2664 | int ret; |
78586d8a | 2665 | struct bt_ctf_event *event; |
e98a2d6e | 2666 | |
fdf0e7a0 PP |
2667 | BT_LOGV("Creating event for event notification: " |
2668 | "notit-addr=%p, event-class-addr=%p, " | |
2669 | "event-class-name=\"%s\", " | |
2670 | "event-class-id=%" PRId64, | |
2671 | notit, notit->meta.event_class, | |
2672 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2673 | bt_ctf_event_class_get_id(notit->meta.event_class)); | |
2674 | ||
78586d8a | 2675 | /* Create event object. */ |
e98a2d6e PP |
2676 | event = bt_ctf_event_create(notit->meta.event_class); |
2677 | if (!event) { | |
fdf0e7a0 PP |
2678 | BT_LOGE("Cannot create event: " |
2679 | "notit-addr=%p, event-class-addr=%p, " | |
2680 | "event-class-name=\"%s\", " | |
2681 | "event-class-id=%" PRId64, | |
2682 | notit, notit->meta.event_class, | |
2683 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2684 | bt_ctf_event_class_get_id(notit->meta.event_class)); | |
e98a2d6e PP |
2685 | goto error; |
2686 | } | |
2687 | ||
78586d8a | 2688 | /* Set header, stream event context, context, and payload fields. */ |
e98a2d6e PP |
2689 | ret = bt_ctf_event_set_header(event, |
2690 | notit->dscopes.stream_event_header); | |
2691 | if (ret) { | |
fdf0e7a0 PP |
2692 | BT_LOGE("Cannot set event's header field: " |
2693 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2694 | "event-class-name=\"%s\", " | |
2695 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2696 | notit, event, notit->meta.event_class, | |
2697 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2698 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2699 | notit->dscopes.stream_event_header); | |
e98a2d6e PP |
2700 | goto error; |
2701 | } | |
2702 | ||
2703 | ret = bt_ctf_event_set_stream_event_context(event, | |
2704 | notit->dscopes.stream_event_context); | |
2705 | if (ret) { | |
fdf0e7a0 PP |
2706 | BT_LOGE("Cannot set event's context field: " |
2707 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2708 | "event-class-name=\"%s\", " | |
2709 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2710 | notit, event, notit->meta.event_class, | |
2711 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2712 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2713 | notit->dscopes.stream_event_context); | |
e98a2d6e PP |
2714 | goto error; |
2715 | } | |
2716 | ||
2717 | ret = bt_ctf_event_set_event_context(event, | |
2718 | notit->dscopes.event_context); | |
2719 | if (ret) { | |
fdf0e7a0 PP |
2720 | BT_LOGE("Cannot set event's stream event context field: " |
2721 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2722 | "event-class-name=\"%s\", " | |
2723 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2724 | notit, event, notit->meta.event_class, | |
2725 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2726 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2727 | notit->dscopes.event_context); | |
e98a2d6e PP |
2728 | goto error; |
2729 | } | |
2730 | ||
9ac68eb1 | 2731 | ret = bt_ctf_event_set_event_payload(event, |
e98a2d6e PP |
2732 | notit->dscopes.event_payload); |
2733 | if (ret) { | |
fdf0e7a0 PP |
2734 | BT_LOGE("Cannot set event's payload field: " |
2735 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2736 | "event-class-name=\"%s\", " | |
2737 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2738 | notit, event, notit->meta.event_class, | |
2739 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2740 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2741 | notit->dscopes.event_payload); | |
e98a2d6e PP |
2742 | goto error; |
2743 | } | |
2744 | ||
1556a1af JG |
2745 | ret = set_event_clocks(event, notit); |
2746 | if (ret) { | |
fdf0e7a0 PP |
2747 | BT_LOGE("Cannot set event's clock values: " |
2748 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2749 | "event-class-name=\"%s\", " | |
2750 | "event-class-id=%" PRId64, | |
2751 | notit, event, notit->meta.event_class, | |
2752 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2753 | bt_ctf_event_class_get_id(notit->meta.event_class)); | |
1556a1af JG |
2754 | goto error; |
2755 | } | |
2756 | ||
78586d8a | 2757 | /* Associate with current packet. */ |
e98a2d6e PP |
2758 | assert(notit->packet); |
2759 | ret = bt_ctf_event_set_packet(event, notit->packet); | |
2760 | if (ret) { | |
fdf0e7a0 PP |
2761 | BT_LOGE("Cannot set event's header field: " |
2762 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2763 | "event-class-name=\"%s\", " | |
2764 | "event-class-id=%" PRId64 ", packet-addr=%p", | |
2765 | notit, event, notit->meta.event_class, | |
2766 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2767 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2768 | notit->packet); | |
e98a2d6e PP |
2769 | goto error; |
2770 | } | |
2771 | ||
2772 | goto end; | |
fdf0e7a0 | 2773 | |
e98a2d6e PP |
2774 | error: |
2775 | BT_PUT(event); | |
fdf0e7a0 | 2776 | |
e98a2d6e PP |
2777 | end: |
2778 | return event; | |
2779 | } | |
2780 | ||
0659c536 PP |
2781 | static |
2782 | uint64_t get_cur_stream_instance_id(struct bt_ctf_notif_iter *notit) | |
2783 | { | |
2784 | struct bt_ctf_field *stream_instance_id_field = NULL; | |
2785 | uint64_t stream_instance_id = -1ULL; | |
2786 | int ret; | |
2787 | ||
2788 | if (!notit->dscopes.trace_packet_header) { | |
2789 | goto end; | |
2790 | } | |
2791 | ||
2792 | stream_instance_id_field = bt_ctf_field_structure_get_field_by_name( | |
2793 | notit->dscopes.trace_packet_header, "stream_instance_id"); | |
2794 | if (!stream_instance_id_field) { | |
2795 | goto end; | |
2796 | } | |
2797 | ||
2798 | ret = bt_ctf_field_unsigned_integer_get_value(stream_instance_id_field, | |
2799 | &stream_instance_id); | |
2800 | if (ret) { | |
2801 | stream_instance_id = -1ULL; | |
2802 | goto end; | |
2803 | } | |
2804 | ||
2805 | end: | |
2806 | bt_put(stream_instance_id_field); | |
2807 | return stream_instance_id; | |
2808 | } | |
2809 | ||
78586d8a | 2810 | static |
5184a1d6 | 2811 | int set_stream(struct bt_ctf_notif_iter *notit) |
e98a2d6e | 2812 | { |
5184a1d6 | 2813 | int ret = 0; |
e98a2d6e | 2814 | struct bt_ctf_stream *stream = NULL; |
e98a2d6e | 2815 | |
fdf0e7a0 PP |
2816 | BT_LOGV("Calling user function (get stream): notit-addr=%p, " |
2817 | "stream-class-addr=%p, stream-class-name=\"%s\", " | |
2818 | "stream-class-id=%" PRId64, | |
2819 | notit, notit->meta.stream_class, | |
2820 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
2821 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
5184a1d6 | 2822 | stream = bt_get(notit->medium.medops.get_stream( |
0659c536 PP |
2823 | notit->meta.stream_class, get_cur_stream_instance_id(notit), |
2824 | notit->medium.data)); | |
5184a1d6 | 2825 | BT_LOGV("User function returned: stream-addr=%p", stream); |
e98a2d6e | 2826 | if (!stream) { |
fdf0e7a0 | 2827 | BT_LOGW_STR("User function failed to return a stream object for the given stream class."); |
5184a1d6 PP |
2828 | ret = -1; |
2829 | goto end; | |
2830 | } | |
2831 | ||
2832 | if (notit->stream && stream != notit->stream) { | |
2833 | BT_LOGW("User function returned a different stream than the previous one for the same sequence of packets."); | |
2834 | ret = -1; | |
2835 | goto end; | |
2836 | } | |
2837 | ||
2838 | BT_MOVE(notit->stream, stream); | |
2839 | ||
2840 | end: | |
2841 | bt_put(stream); | |
2842 | return ret; | |
2843 | } | |
2844 | ||
2845 | static | |
2846 | void create_packet(struct bt_ctf_notif_iter *notit) | |
2847 | { | |
2848 | int ret; | |
2849 | struct bt_ctf_packet *packet = NULL; | |
2850 | ||
2851 | BT_LOGV("Creating packet for packet notification: " | |
2852 | "notit-addr=%p", notit); | |
2853 | ||
2854 | /* Ask the user for the stream */ | |
2855 | ret = set_stream(notit); | |
2856 | if (ret) { | |
e98a2d6e PP |
2857 | goto error; |
2858 | } | |
2859 | ||
fdf0e7a0 PP |
2860 | BT_LOGV("Creating packet from stream: " |
2861 | "notit-addr=%p, stream-addr=%p, " | |
2862 | "stream-class-addr=%p, " | |
2863 | "stream-class-name=\"%s\", " | |
2864 | "stream-class-id=%" PRId64, | |
5184a1d6 | 2865 | notit, notit->stream, notit->meta.stream_class, |
fdf0e7a0 PP |
2866 | bt_ctf_stream_class_get_name(notit->meta.stream_class), |
2867 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
2868 | ||
e98a2d6e | 2869 | /* Create packet */ |
5184a1d6 | 2870 | packet = bt_ctf_packet_create(notit->stream); |
e98a2d6e | 2871 | if (!packet) { |
fdf0e7a0 PP |
2872 | BT_LOGE("Cannot create packet from stream: " |
2873 | "notit-addr=%p, stream-addr=%p, " | |
2874 | "stream-class-addr=%p, " | |
2875 | "stream-class-name=\"%s\", " | |
2876 | "stream-class-id=%" PRId64, | |
5184a1d6 | 2877 | notit, notit->stream, notit->meta.stream_class, |
fdf0e7a0 PP |
2878 | bt_ctf_stream_class_get_name(notit->meta.stream_class), |
2879 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
e98a2d6e PP |
2880 | goto error; |
2881 | } | |
2882 | ||
2883 | /* Set packet's context and header fields */ | |
2884 | if (notit->dscopes.trace_packet_header) { | |
2885 | ret = bt_ctf_packet_set_header(packet, | |
fdf0e7a0 | 2886 | notit->dscopes.trace_packet_header); |
e98a2d6e | 2887 | if (ret) { |
fdf0e7a0 PP |
2888 | BT_LOGE("Cannot set packet's header field: " |
2889 | "notit-addr=%p, packet-addr=%p, " | |
2890 | "stream-addr=%p, " | |
2891 | "stream-class-addr=%p, " | |
2892 | "stream-class-name=\"%s\", " | |
2893 | "stream-class-id=%" PRId64 ", " | |
2894 | "field-addr=%p", | |
5184a1d6 | 2895 | notit, packet, notit->stream, notit->meta.stream_class, |
fdf0e7a0 PP |
2896 | bt_ctf_stream_class_get_name(notit->meta.stream_class), |
2897 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
2898 | notit->dscopes.trace_packet_header); | |
e98a2d6e PP |
2899 | goto error; |
2900 | } | |
2901 | } | |
2902 | ||
2903 | if (notit->dscopes.stream_packet_context) { | |
2904 | ret = bt_ctf_packet_set_context(packet, | |
fdf0e7a0 | 2905 | notit->dscopes.stream_packet_context); |
e98a2d6e | 2906 | if (ret) { |
fdf0e7a0 PP |
2907 | BT_LOGE("Cannot set packet's context field: " |
2908 | "notit-addr=%p, packet-addr=%p, " | |
2909 | "stream-addr=%p, " | |
2910 | "stream-class-addr=%p, " | |
2911 | "stream-class-name=\"%s\", " | |
2912 | "stream-class-id=%" PRId64 ", " | |
2913 | "field-addr=%p", | |
5184a1d6 | 2914 | notit, packet, notit->stream, notit->meta.stream_class, |
fdf0e7a0 PP |
2915 | bt_ctf_stream_class_get_name(notit->meta.stream_class), |
2916 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
2917 | notit->dscopes.trace_packet_header); | |
e98a2d6e PP |
2918 | goto error; |
2919 | } | |
2920 | } | |
2921 | ||
2922 | goto end; | |
fdf0e7a0 | 2923 | |
e98a2d6e PP |
2924 | error: |
2925 | BT_PUT(packet); | |
fdf0e7a0 | 2926 | |
e98a2d6e PP |
2927 | end: |
2928 | BT_MOVE(notit->packet, packet); | |
2929 | } | |
2930 | ||
78586d8a JG |
2931 | static |
2932 | void notify_new_packet(struct bt_ctf_notif_iter *notit, | |
2933 | struct bt_notification **notification) | |
e98a2d6e | 2934 | { |
78586d8a | 2935 | struct bt_notification *ret; |
e98a2d6e | 2936 | |
78586d8a | 2937 | /* Initialize the iterator's current packet */ |
e98a2d6e PP |
2938 | create_packet(notit); |
2939 | if (!notit->packet) { | |
fdf0e7a0 PP |
2940 | BT_LOGE("Cannot create packet for packet notification: " |
2941 | "notit-addr=%p", notit); | |
78586d8a | 2942 | return; |
e98a2d6e PP |
2943 | } |
2944 | ||
ea0e619e | 2945 | ret = bt_notification_packet_begin_create(notit->packet); |
78586d8a | 2946 | if (!ret) { |
fdf0e7a0 PP |
2947 | BT_LOGE("Cannot create packet beginning notification: " |
2948 | "notit-addr=%p, packet-addr=%p", | |
2949 | notit, notit->packet); | |
78586d8a JG |
2950 | return; |
2951 | } | |
2952 | *notification = ret; | |
e98a2d6e PP |
2953 | } |
2954 | ||
78586d8a JG |
2955 | static |
2956 | void notify_end_of_packet(struct bt_ctf_notif_iter *notit, | |
2957 | struct bt_notification **notification) | |
e98a2d6e | 2958 | { |
78586d8a | 2959 | struct bt_notification *ret; |
e98a2d6e | 2960 | |
e98a2d6e | 2961 | if (!notit->packet) { |
78586d8a | 2962 | return; |
e98a2d6e PP |
2963 | } |
2964 | ||
78586d8a JG |
2965 | ret = bt_notification_packet_end_create(notit->packet); |
2966 | if (!ret) { | |
fdf0e7a0 PP |
2967 | BT_LOGE("Cannot create packet end notification: " |
2968 | "notit-addr=%p, packet-addr=%p", | |
2969 | notit, notit->packet); | |
78586d8a JG |
2970 | return; |
2971 | } | |
2972 | BT_PUT(notit->packet); | |
2973 | *notification = ret; | |
e98a2d6e PP |
2974 | } |
2975 | ||
78586d8a JG |
2976 | static |
2977 | void notify_event(struct bt_ctf_notif_iter *notit, | |
0982a26d | 2978 | struct bt_clock_class_priority_map *cc_prio_map, |
78586d8a | 2979 | struct bt_notification **notification) |
e98a2d6e | 2980 | { |
9b876b7b | 2981 | struct bt_ctf_event *event = NULL; |
78586d8a | 2982 | struct bt_notification *ret = NULL; |
e98a2d6e | 2983 | |
9b876b7b PP |
2984 | /* Make sure that the event contains at least one bit of data */ |
2985 | if (notit->buf.at == notit->buf.last_eh_at) { | |
2986 | BT_LOGE("Cannot create empty event with 0 bits of data: " | |
2987 | "notit-addr=%p, packet-cur=%zu", | |
2988 | notit, packet_at(notit)); | |
2989 | goto end; | |
2990 | } | |
2991 | ||
e98a2d6e PP |
2992 | /* Create event */ |
2993 | event = create_event(notit); | |
2994 | if (!event) { | |
fdf0e7a0 PP |
2995 | BT_LOGE("Cannot create event for event notification: " |
2996 | "notit-addr=%p", notit); | |
78586d8a | 2997 | goto end; |
e98a2d6e | 2998 | } |
e98a2d6e | 2999 | |
0982a26d | 3000 | ret = bt_notification_event_create(event, cc_prio_map); |
78586d8a | 3001 | if (!ret) { |
fdf0e7a0 PP |
3002 | BT_LOGE("Cannot create event notification: " |
3003 | "notit-addr=%p, event-addr=%p, " | |
3004 | "cc-prio-map-addr=%p", | |
3005 | notit, event, cc_prio_map); | |
78586d8a | 3006 | goto end; |
e98a2d6e | 3007 | } |
78586d8a JG |
3008 | *notification = ret; |
3009 | end: | |
3010 | BT_PUT(event); | |
e98a2d6e PP |
3011 | } |
3012 | ||
5f870343 JG |
3013 | static |
3014 | void init_trace_field_path_cache(struct bt_ctf_trace *trace, | |
3015 | struct trace_field_path_cache *trace_field_path_cache) | |
3016 | { | |
3017 | int stream_id = -1; | |
3018 | int stream_instance_id = -1; | |
3019 | int i, count; | |
3020 | struct bt_ctf_field_type *packet_header = NULL; | |
3021 | ||
3022 | packet_header = bt_ctf_trace_get_packet_header_type(trace); | |
3023 | if (!packet_header) { | |
3024 | goto end; | |
3025 | } | |
3026 | ||
3027 | if (!bt_ctf_field_type_is_structure(packet_header)) { | |
3028 | goto end; | |
3029 | } | |
3030 | ||
3031 | count = bt_ctf_field_type_structure_get_field_count(packet_header); | |
fdf0e7a0 | 3032 | assert(count >= 0); |
5f870343 JG |
3033 | |
3034 | for (i = 0; (i < count && (stream_id == -1 || stream_instance_id == -1)); i++) { | |
3035 | int ret; | |
3036 | const char *field_name; | |
3037 | ||
3038 | ret = bt_ctf_field_type_structure_get_field(packet_header, | |
3039 | &field_name, NULL, i); | |
3040 | if (ret) { | |
fdf0e7a0 PP |
3041 | BT_LOGE("Cannot get structure field's field: " |
3042 | "field-addr=%p, index=%d", | |
3043 | packet_header, i); | |
5f870343 JG |
3044 | goto end; |
3045 | } | |
3046 | ||
3047 | if (stream_id == -1 && !strcmp(field_name, "stream_id")) { | |
3048 | stream_id = i; | |
3049 | } else if (stream_instance_id == -1 && | |
3050 | !strcmp(field_name, "stream_instance_id")) { | |
3051 | stream_instance_id = i; | |
3052 | } | |
3053 | } | |
fdf0e7a0 | 3054 | |
5f870343 JG |
3055 | end: |
3056 | trace_field_path_cache->stream_id = stream_id; | |
3057 | trace_field_path_cache->stream_instance_id = stream_instance_id; | |
3058 | BT_PUT(packet_header); | |
3059 | } | |
3060 | ||
c44c3e70 | 3061 | BT_HIDDEN |
e98a2d6e PP |
3062 | struct bt_ctf_notif_iter *bt_ctf_notif_iter_create(struct bt_ctf_trace *trace, |
3063 | size_t max_request_sz, | |
55314f2a | 3064 | struct bt_ctf_notif_iter_medium_ops medops, void *data) |
e98a2d6e PP |
3065 | { |
3066 | struct bt_ctf_notif_iter *notit = NULL; | |
3067 | struct bt_ctf_btr_cbs cbs = { | |
3068 | .types = { | |
3069 | .signed_int = btr_signed_int_cb, | |
3070 | .unsigned_int = btr_unsigned_int_cb, | |
3071 | .floating_point = btr_floating_point_cb, | |
3072 | .string_begin = btr_string_begin_cb, | |
3073 | .string = btr_string_cb, | |
3074 | .string_end = btr_string_end_cb, | |
3075 | .compound_begin = btr_compound_begin_cb, | |
3076 | .compound_end = btr_compound_end_cb, | |
3077 | }, | |
3078 | .query = { | |
3079 | .get_sequence_length = btr_get_sequence_length_cb, | |
3080 | .get_variant_type = btr_get_variant_type_cb, | |
3081 | }, | |
3082 | }; | |
3083 | ||
3084 | assert(trace); | |
3085 | assert(medops.request_bytes); | |
f3985ab1 | 3086 | assert(medops.get_stream); |
fdf0e7a0 PP |
3087 | BT_LOGD("Creating CTF plugin notification iterator: " |
3088 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
3089 | "data=%p", | |
3090 | trace, bt_ctf_trace_get_name(trace), max_request_sz, data); | |
e98a2d6e PP |
3091 | notit = g_new0(struct bt_ctf_notif_iter, 1); |
3092 | if (!notit) { | |
fdf0e7a0 | 3093 | BT_LOGE_STR("Failed to allocate one CTF plugin notification iterator."); |
e98a2d6e PP |
3094 | goto end; |
3095 | } | |
c44c3e70 | 3096 | notit->clock_states = g_hash_table_new_full(g_direct_hash, |
fdf0e7a0 | 3097 | g_direct_equal, bt_put, g_free); |
c44c3e70 | 3098 | if (!notit->clock_states) { |
fdf0e7a0 | 3099 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
c44c3e70 JG |
3100 | goto error; |
3101 | } | |
35d47007 | 3102 | notit->meta.trace = bt_get(trace); |
e98a2d6e PP |
3103 | notit->medium.medops = medops; |
3104 | notit->medium.max_request_sz = max_request_sz; | |
3105 | notit->medium.data = data; | |
e98a2d6e PP |
3106 | notit->stack = stack_new(notit); |
3107 | if (!notit->stack) { | |
fdf0e7a0 | 3108 | BT_LOGE_STR("Failed to create field stack."); |
c44c3e70 | 3109 | goto error; |
e98a2d6e PP |
3110 | } |
3111 | ||
55314f2a | 3112 | notit->btr = bt_ctf_btr_create(cbs, notit); |
e98a2d6e | 3113 | if (!notit->btr) { |
fdf0e7a0 | 3114 | BT_LOGE_STR("Failed to create binary type reader (BTR)."); |
c44c3e70 | 3115 | goto error; |
e98a2d6e PP |
3116 | } |
3117 | ||
3118 | bt_ctf_notif_iter_reset(notit); | |
5f870343 JG |
3119 | init_trace_field_path_cache(trace, ¬it->trace_field_path_cache); |
3120 | notit->sc_field_path_caches = g_hash_table_new_full(g_direct_hash, | |
fdf0e7a0 | 3121 | g_direct_equal, bt_put, g_free); |
5f870343 | 3122 | if (!notit->sc_field_path_caches) { |
fdf0e7a0 | 3123 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
5f870343 JG |
3124 | goto error; |
3125 | } | |
3126 | ||
3127 | notit->field_overrides = g_hash_table_new_full(g_direct_hash, | |
fdf0e7a0 | 3128 | g_direct_equal, bt_put, g_free); |
5f870343 | 3129 | if (!notit->field_overrides) { |
fdf0e7a0 | 3130 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
5f870343 JG |
3131 | goto error; |
3132 | } | |
3133 | ||
fdf0e7a0 PP |
3134 | BT_LOGD("Created CTF plugin notification iterator: " |
3135 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
3136 | "data=%p, notit-addr=%p", | |
3137 | trace, bt_ctf_trace_get_name(trace), max_request_sz, data, | |
3138 | notit); | |
bb230c9b | 3139 | notit->cur_packet_offset = 0; |
fdf0e7a0 | 3140 | |
e98a2d6e PP |
3141 | end: |
3142 | return notit; | |
fdf0e7a0 | 3143 | |
c44c3e70 JG |
3144 | error: |
3145 | bt_ctf_notif_iter_destroy(notit); | |
3146 | notit = NULL; | |
3147 | goto end; | |
e98a2d6e PP |
3148 | } |
3149 | ||
3150 | void bt_ctf_notif_iter_destroy(struct bt_ctf_notif_iter *notit) | |
3151 | { | |
3152 | BT_PUT(notit->meta.trace); | |
3153 | BT_PUT(notit->meta.stream_class); | |
3154 | BT_PUT(notit->meta.event_class); | |
3155 | BT_PUT(notit->packet); | |
5184a1d6 | 3156 | BT_PUT(notit->stream); |
5f870343 | 3157 | BT_PUT(notit->cur_timestamp_end); |
e98a2d6e PP |
3158 | put_all_dscopes(notit); |
3159 | ||
fdf0e7a0 PP |
3160 | BT_LOGD("Destroying CTF plugin notification iterator: addr=%p", notit); |
3161 | ||
e98a2d6e | 3162 | if (notit->stack) { |
fdf0e7a0 | 3163 | BT_LOGD_STR("Destroying field stack."); |
e98a2d6e PP |
3164 | stack_destroy(notit->stack); |
3165 | } | |
3166 | ||
3167 | if (notit->btr) { | |
fdf0e7a0 | 3168 | BT_LOGD("Destroying BTR: btr-addr=%p", notit->btr); |
e98a2d6e PP |
3169 | bt_ctf_btr_destroy(notit->btr); |
3170 | } | |
3171 | ||
c44c3e70 JG |
3172 | if (notit->clock_states) { |
3173 | g_hash_table_destroy(notit->clock_states); | |
3174 | } | |
5f870343 JG |
3175 | |
3176 | if (notit->sc_field_path_caches) { | |
3177 | g_hash_table_destroy(notit->sc_field_path_caches); | |
3178 | } | |
3179 | ||
3180 | if (notit->field_overrides) { | |
3181 | g_hash_table_destroy(notit->field_overrides); | |
3182 | } | |
fdf0e7a0 | 3183 | |
e98a2d6e PP |
3184 | g_free(notit); |
3185 | } | |
3186 | ||
3187 | enum bt_ctf_notif_iter_status bt_ctf_notif_iter_get_next_notification( | |
3188 | struct bt_ctf_notif_iter *notit, | |
0982a26d | 3189 | struct bt_clock_class_priority_map *cc_prio_map, |
78586d8a | 3190 | struct bt_notification **notification) |
e98a2d6e PP |
3191 | { |
3192 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
3193 | ||
3194 | assert(notit); | |
3195 | assert(notification); | |
3196 | ||
fdf0e7a0 PP |
3197 | BT_LOGV("Getting next notification: notit-addr=%p, cc-prio-map-addr=%p", |
3198 | notit, cc_prio_map); | |
3199 | ||
e98a2d6e PP |
3200 | while (true) { |
3201 | status = handle_state(notit); | |
7cdc2bab | 3202 | if (status == BT_CTF_NOTIF_ITER_STATUS_AGAIN) { |
fdf0e7a0 | 3203 | BT_LOGV_STR("Medium returned BT_CTF_NOTIF_ITER_STATUS_AGAIN."); |
7cdc2bab MD |
3204 | goto end; |
3205 | } | |
e98a2d6e PP |
3206 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { |
3207 | if (status == BT_CTF_NOTIF_ITER_STATUS_EOF) { | |
fdf0e7a0 | 3208 | BT_LOGV_STR("Medium returned BT_CTF_NOTIF_ITER_STATUS_EOF."); |
e98a2d6e | 3209 | } else { |
fdf0e7a0 PP |
3210 | BT_LOGW("Cannot handle state: " |
3211 | "notit-addr=%p, state=%s", | |
3212 | notit, state_string(notit->state)); | |
e98a2d6e PP |
3213 | } |
3214 | goto end; | |
3215 | } | |
3216 | ||
3217 | switch (notit->state) { | |
3218 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
fdf0e7a0 | 3219 | /* notify_new_packet() logs errors */ |
e98a2d6e PP |
3220 | notify_new_packet(notit, notification); |
3221 | if (!*notification) { | |
3222 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
3223 | } | |
3224 | goto end; | |
3225 | case STATE_EMIT_NOTIF_EVENT: | |
fdf0e7a0 | 3226 | /* notify_event() logs errors */ |
0982a26d | 3227 | notify_event(notit, cc_prio_map, notification); |
e98a2d6e PP |
3228 | if (!*notification) { |
3229 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
3230 | } | |
3231 | goto end; | |
3232 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
5f870343 JG |
3233 | /* Update clock with timestamp_end field. */ |
3234 | if (notit->cur_timestamp_end) { | |
3235 | enum bt_ctf_btr_status btr_status; | |
3236 | struct bt_ctf_field_type *field_type = | |
3237 | bt_ctf_field_get_type( | |
3238 | notit->cur_timestamp_end); | |
3239 | ||
fdf0e7a0 | 3240 | assert(field_type); |
f45bfe88 PP |
3241 | btr_status = update_clock(notit, |
3242 | notit->cur_timestamp_end); | |
5f870343 JG |
3243 | BT_PUT(field_type); |
3244 | if (btr_status != BT_CTF_BTR_STATUS_OK) { | |
fdf0e7a0 PP |
3245 | BT_LOGW("Cannot update stream's clock value: " |
3246 | "notit-addr=%p", notit); | |
5f870343 JG |
3247 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
3248 | goto end; | |
3249 | } | |
3250 | } | |
3251 | ||
fdf0e7a0 | 3252 | /* notify_end_of_packet() logs errors */ |
e98a2d6e PP |
3253 | notify_end_of_packet(notit, notification); |
3254 | if (!*notification) { | |
3255 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
3256 | } | |
3257 | goto end; | |
3258 | default: | |
3259 | /* Non-emitting state: continue */ | |
3260 | break; | |
3261 | } | |
3262 | } | |
3263 | ||
3264 | end: | |
3265 | return status; | |
3266 | } | |
87187cbf PP |
3267 | |
3268 | BT_HIDDEN | |
3269 | enum bt_ctf_notif_iter_status bt_ctf_notif_iter_get_packet_header_context_fields( | |
3270 | struct bt_ctf_notif_iter *notit, | |
3271 | struct bt_ctf_field **packet_header_field, | |
3272 | struct bt_ctf_field **packet_context_field) | |
3273 | { | |
bb230c9b | 3274 | int ret; |
87187cbf PP |
3275 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; |
3276 | ||
3277 | assert(notit); | |
3278 | ||
3279 | if (notit->state == STATE_EMIT_NOTIF_NEW_PACKET) { | |
3280 | /* We're already there */ | |
3281 | goto set_fields; | |
3282 | } | |
3283 | ||
3284 | while (true) { | |
3285 | status = handle_state(notit); | |
3286 | if (status == BT_CTF_NOTIF_ITER_STATUS_AGAIN) { | |
fdf0e7a0 | 3287 | BT_LOGV_STR("Medium returned BT_CTF_NOTIF_ITER_STATUS_AGAIN."); |
87187cbf PP |
3288 | goto end; |
3289 | } | |
3290 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
3291 | if (status == BT_CTF_NOTIF_ITER_STATUS_EOF) { | |
fdf0e7a0 | 3292 | BT_LOGV_STR("Medium returned BT_CTF_NOTIF_ITER_STATUS_EOF."); |
87187cbf | 3293 | } else { |
fdf0e7a0 PP |
3294 | BT_LOGW("Cannot handle state: " |
3295 | "notit-addr=%p, state=%s", | |
3296 | notit, state_string(notit->state)); | |
87187cbf PP |
3297 | } |
3298 | goto end; | |
3299 | } | |
3300 | ||
3301 | switch (notit->state) { | |
3302 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
3303 | /* | |
3304 | * Packet header and context fields are | |
3305 | * potentially decoded (or they don't exist). | |
3306 | */ | |
3307 | goto set_fields; | |
3308 | case STATE_INIT: | |
3309 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
3310 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
3311 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
3312 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
3313 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
3314 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
3315 | /* Non-emitting state: continue */ | |
3316 | break; | |
3317 | default: | |
3318 | /* | |
3319 | * We should never get past the | |
3320 | * STATE_EMIT_NOTIF_NEW_PACKET state. | |
3321 | */ | |
fdf0e7a0 PP |
3322 | BT_LOGF("Unexpected state: notit-addr=%p, state=%s", |
3323 | notit, state_string(notit->state)); | |
0fbb9a9f | 3324 | abort(); |
87187cbf PP |
3325 | } |
3326 | } | |
3327 | ||
3328 | set_fields: | |
3329 | if (packet_header_field) { | |
3330 | *packet_header_field = bt_get(notit->dscopes.trace_packet_header); | |
3331 | } | |
3332 | ||
3333 | if (packet_context_field) { | |
3334 | *packet_context_field = bt_get(notit->dscopes.stream_packet_context); | |
3335 | } | |
3336 | ||
bb230c9b JG |
3337 | ret = set_current_packet_content_sizes(notit); |
3338 | if (ret) { | |
3339 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
3340 | goto end; | |
3341 | } | |
87187cbf PP |
3342 | end: |
3343 | return status; | |
3344 | } | |
55fa6491 PP |
3345 | |
3346 | BT_HIDDEN | |
3347 | void bt_ctf_notif_iter_set_medops_data(struct bt_ctf_notif_iter *notit, | |
3348 | void *medops_data) | |
3349 | { | |
3350 | assert(notit); | |
3351 | notit->medium.data = medops_data; | |
3352 | } | |
bb230c9b JG |
3353 | |
3354 | BT_HIDDEN | |
3355 | enum bt_ctf_notif_iter_status bt_ctf_notif_iter_seek( | |
3356 | struct bt_ctf_notif_iter *notit, off_t offset) | |
3357 | { | |
3358 | enum bt_ctf_notif_iter_status ret = BT_CTF_NOTIF_ITER_STATUS_OK; | |
3359 | enum bt_ctf_notif_iter_medium_status medium_status; | |
3360 | ||
3361 | assert(notit); | |
3362 | if (offset < 0) { | |
3363 | BT_LOGE("Cannot seek to negative offset: offset=%jd", offset); | |
3364 | ret = BT_CTF_NOTIF_ITER_STATUS_INVAL; | |
3365 | goto end; | |
3366 | } | |
3367 | ||
3368 | if (!notit->medium.medops.seek) { | |
3369 | ret = BT_CTF_NOTIF_ITER_STATUS_UNSUPPORTED; | |
3370 | BT_LOGD("Aborting seek as the iterator's underlying media does not implement seek support."); | |
3371 | goto end; | |
3372 | } | |
3373 | ||
3374 | medium_status = notit->medium.medops.seek( | |
3375 | BT_CTF_NOTIF_ITER_SEEK_WHENCE_SET, offset, | |
3376 | notit->medium.data); | |
3377 | if (medium_status != BT_CTF_NOTIF_ITER_MEDIUM_STATUS_OK) { | |
3378 | if (medium_status == BT_CTF_NOTIF_ITER_MEDIUM_STATUS_EOF) { | |
3379 | ret = BT_CTF_NOTIF_ITER_STATUS_EOF; | |
3380 | } else { | |
3381 | ret = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
3382 | goto end; | |
3383 | } | |
3384 | } | |
3385 | ||
3386 | bt_ctf_notif_iter_reset(notit); | |
3387 | notit->cur_packet_offset = offset; | |
3388 | end: | |
3389 | return ret; | |
3390 | } | |
3391 | ||
3392 | BT_HIDDEN | |
3393 | off_t bt_ctf_notif_iter_get_current_packet_offset( | |
3394 | struct bt_ctf_notif_iter *notit) | |
3395 | { | |
3396 | assert(notit); | |
3397 | return notit->cur_packet_offset; | |
3398 | } | |
3399 | ||
3400 | BT_HIDDEN | |
3401 | off_t bt_ctf_notif_iter_get_current_packet_size( | |
3402 | struct bt_ctf_notif_iter *notit) | |
3403 | { | |
3404 | assert(notit); | |
3405 | return notit->cur_packet_size; | |
3406 | } |