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> | |
8b45963b | 34 | #include <babeltrace/assert-internal.h> |
e98a2d6e | 35 | #include <string.h> |
e0831b38 | 36 | #include <babeltrace/babeltrace.h> |
8deee039 | 37 | #include <babeltrace/common-internal.h> |
e98a2d6e | 38 | #include <glib.h> |
0fbb9a9f | 39 | #include <stdlib.h> |
e98a2d6e | 40 | |
06a626b8 JG |
41 | #include "notif-iter.h" |
42 | #include "../btr/btr.h" | |
e98a2d6e | 43 | |
839d52a5 | 44 | struct bt_notif_iter; |
e98a2d6e PP |
45 | |
46 | /* A visit stack entry */ | |
47 | struct stack_entry { | |
48 | /* | |
49 | * Current base field, one of: | |
50 | * | |
51 | * * string | |
52 | * * structure | |
53 | * * array | |
54 | * * sequence | |
55 | * * variant | |
56 | * | |
a6918753 | 57 | * Field is borrowed. |
e98a2d6e | 58 | */ |
839d52a5 | 59 | struct bt_field *base; |
e98a2d6e PP |
60 | |
61 | /* index of next field to set */ | |
62 | size_t index; | |
63 | }; | |
64 | ||
65 | /* Visit stack */ | |
66 | struct stack { | |
87bdbbb0 PP |
67 | /* Entries (struct stack_entry) */ |
68 | GArray *entries; | |
69 | ||
70 | /* Number of active entries */ | |
71 | size_t size; | |
e98a2d6e PP |
72 | }; |
73 | ||
74 | /* State */ | |
75 | enum state { | |
76 | STATE_INIT, | |
77 | STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN, | |
78 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
79 | STATE_AFTER_TRACE_PACKET_HEADER, | |
80 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN, | |
81 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
82 | STATE_AFTER_STREAM_PACKET_CONTEXT, | |
6ff151ad | 83 | STATE_EMIT_NOTIF_NEW_STREAM, |
e98a2d6e PP |
84 | STATE_EMIT_NOTIF_NEW_PACKET, |
85 | STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN, | |
86 | STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE, | |
87 | STATE_AFTER_STREAM_EVENT_HEADER, | |
88 | STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN, | |
89 | STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE, | |
90 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN, | |
91 | STATE_DSCOPE_EVENT_CONTEXT_CONTINUE, | |
92 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, | |
93 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
94 | STATE_EMIT_NOTIF_EVENT, | |
95 | STATE_EMIT_NOTIF_END_OF_PACKET, | |
6ff151ad | 96 | STATE_DONE, |
e98a2d6e PP |
97 | STATE_SKIP_PACKET_PADDING, |
98 | }; | |
99 | ||
5f870343 JG |
100 | struct trace_field_path_cache { |
101 | /* | |
102 | * Indexes of the stream_id and stream_instance_id field in the packet | |
103 | * header structure, -1 if unset. | |
104 | */ | |
105 | int stream_id; | |
106 | int stream_instance_id; | |
107 | }; | |
108 | ||
109 | struct stream_class_field_path_cache { | |
110 | /* | |
111 | * Indexes of the v and id fields in the stream event header structure, | |
112 | * -1 if unset. | |
113 | */ | |
114 | int v; | |
115 | int id; | |
116 | ||
117 | /* | |
118 | * index of the timestamp_end, packet_size and content_size fields in | |
119 | * the stream packet context structure. Set to -1 if the fields were | |
120 | * not found. | |
121 | */ | |
122 | int timestamp_end; | |
123 | int packet_size; | |
124 | int content_size; | |
125 | }; | |
126 | ||
127 | struct field_cb_override { | |
839d52a5 PP |
128 | enum bt_btr_status (* func)(void *value, |
129 | struct bt_field_type *type, void *data); | |
5f870343 JG |
130 | void *data; |
131 | }; | |
132 | ||
8fc063a2 PP |
133 | /* Clock value: clock class and raw value */ |
134 | struct clock_value { | |
135 | struct bt_clock_class *clock_class; /* Weak */ | |
136 | uint64_t raw_value; | |
137 | }; | |
138 | ||
e98a2d6e | 139 | /* CTF notification iterator */ |
839d52a5 | 140 | struct bt_notif_iter { |
e98a2d6e PP |
141 | /* Visit stack */ |
142 | struct stack *stack; | |
143 | ||
03e18d5d PP |
144 | /* Current notification iterator to create notifications (weak) */ |
145 | struct bt_private_connection_private_notification_iterator *notif_iter; | |
f7c3ac09 | 146 | |
e98a2d6e PP |
147 | /* |
148 | * Current dynamic scope field pointer. | |
149 | * | |
a6918753 PP |
150 | * This is set by read_dscope_begin_state() and contains the |
151 | * value of one of the pointers in `dscopes` below. | |
e98a2d6e | 152 | */ |
a6918753 | 153 | struct bt_field *cur_dscope_field; |
e98a2d6e PP |
154 | |
155 | /* Trace and classes (owned by this) */ | |
156 | struct { | |
839d52a5 PP |
157 | struct bt_trace *trace; |
158 | struct bt_stream_class *stream_class; | |
159 | struct bt_event_class *event_class; | |
e98a2d6e PP |
160 | } meta; |
161 | ||
a6918753 PP |
162 | /* Current packet header field wrapper (NULL if not created yet) */ |
163 | struct bt_packet_header_field *packet_header_field; | |
164 | ||
165 | /* Current packet header field wrapper (NULL if not created yet) */ | |
166 | struct bt_packet_context_field *packet_context_field; | |
167 | ||
168 | /* Current event header field (NULL if not created yet) */ | |
169 | struct bt_event_header_field *event_header_field; | |
170 | ||
e98a2d6e | 171 | /* Current packet (NULL if not created yet) */ |
839d52a5 | 172 | struct bt_packet *packet; |
e98a2d6e | 173 | |
e5815ba2 PP |
174 | /* Previous packet availability */ |
175 | enum bt_packet_previous_packet_availability prev_packet_avail; | |
176 | ||
177 | /* Previous packet (NULL if not available) */ | |
178 | struct bt_packet *prev_packet; | |
179 | ||
5184a1d6 | 180 | /* Current stream (NULL if not set yet) */ |
839d52a5 | 181 | struct bt_stream *stream; |
5184a1d6 | 182 | |
a6918753 PP |
183 | /* Current event (NULL if not created yet) */ |
184 | struct bt_event *event; | |
185 | ||
186 | /* Current event notification (NULL if not created yet) */ | |
187 | struct bt_notification *event_notif; | |
188 | ||
5f870343 | 189 | /* |
a6918753 PP |
190 | * Current `timestamp_end` field (to consider before switching |
191 | * packets). If it's set, it's a field which is within | |
192 | * `dscopes.stream_packet_context` below, which is in `packet` | |
193 | * above. | |
5f870343 | 194 | */ |
839d52a5 | 195 | struct bt_field *cur_timestamp_end; |
5f870343 | 196 | |
e98a2d6e PP |
197 | /* Database of current dynamic scopes (owned by this) */ |
198 | struct { | |
839d52a5 PP |
199 | struct bt_field *trace_packet_header; |
200 | struct bt_field *stream_packet_context; | |
201 | struct bt_field *stream_event_header; | |
202 | struct bt_field *stream_event_context; | |
203 | struct bt_field *event_context; | |
204 | struct bt_field *event_payload; | |
e98a2d6e PP |
205 | } dscopes; |
206 | ||
5f870343 JG |
207 | /* |
208 | * Special field overrides. | |
209 | * | |
210 | * Overrides are used to implement the behaviours of special fields such | |
211 | * as "timestamp_end" (which must be ignored until the end of the | |
212 | * packet), "id" (event id) which can be present multiple times and must | |
213 | * be updated multiple time. | |
214 | * | |
215 | * This should be used to implement the behaviour of integer fields | |
216 | * mapped to clocks and other "tagged" fields (in CTF 2). | |
217 | * | |
839d52a5 | 218 | * bt_field_type to struct field_cb_override |
5f870343 JG |
219 | */ |
220 | GHashTable *field_overrides; | |
221 | ||
e98a2d6e PP |
222 | /* Current state */ |
223 | enum state state; | |
224 | ||
2cf1d51e | 225 | /* Current medium buffer data */ |
e98a2d6e PP |
226 | struct { |
227 | /* Last address provided by medium */ | |
228 | const uint8_t *addr; | |
229 | ||
230 | /* Buffer size provided by medium (bytes) */ | |
231 | size_t sz; | |
232 | ||
233 | /* Offset within whole packet of addr (bits) */ | |
234 | size_t packet_offset; | |
235 | ||
236 | /* Current position from addr (bits) */ | |
237 | size_t at; | |
9b876b7b PP |
238 | |
239 | /* Position of the last event header from addr (bits) */ | |
240 | size_t last_eh_at; | |
e98a2d6e PP |
241 | } buf; |
242 | ||
243 | /* Binary type reader */ | |
839d52a5 | 244 | struct bt_btr *btr; |
e98a2d6e | 245 | |
2cf1d51e | 246 | /* Current medium data */ |
e98a2d6e | 247 | struct { |
839d52a5 | 248 | struct bt_notif_iter_medium_ops medops; |
e98a2d6e PP |
249 | size_t max_request_sz; |
250 | void *data; | |
251 | } medium; | |
252 | ||
6ff151ad PP |
253 | /* Stream beginning was emitted */ |
254 | bool stream_begin_emitted; | |
255 | ||
e98a2d6e | 256 | /* Current packet size (bits) (-1 if unknown) */ |
e7a4393b | 257 | int64_t cur_packet_size; |
e98a2d6e PP |
258 | |
259 | /* Current content size (bits) (-1 if unknown) */ | |
e7a4393b | 260 | int64_t cur_content_size; |
c44c3e70 | 261 | |
bb230c9b JG |
262 | /* |
263 | * Offset, in the underlying media, of the current packet's start | |
264 | * (-1 if unknown). | |
265 | */ | |
266 | off_t cur_packet_offset; | |
267 | ||
839d52a5 | 268 | /* bt_clock_class to uint64_t. */ |
c44c3e70 | 269 | GHashTable *clock_states; |
5f870343 JG |
270 | |
271 | /* | |
272 | * Cache of the trace-constant field paths (event header type) | |
273 | * associated to the current trace. | |
274 | */ | |
275 | struct trace_field_path_cache trace_field_path_cache; | |
276 | ||
277 | /* | |
278 | * Field path cache associated with the current stream class. | |
279 | * Ownership of this structure belongs to the field_path_caches HT. | |
280 | */ | |
281 | struct stream_class_field_path_cache *cur_sc_field_path_cache; | |
282 | ||
839d52a5 | 283 | /* bt_stream_class to struct stream_class_field_path_cache. */ |
5f870343 | 284 | GHashTable *sc_field_path_caches; |
e98a2d6e PP |
285 | }; |
286 | ||
fdf0e7a0 PP |
287 | static inline |
288 | const char *state_string(enum state state) | |
289 | { | |
290 | switch (state) { | |
291 | case STATE_INIT: | |
292 | return "STATE_INIT"; | |
293 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
294 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN"; | |
295 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
296 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE"; | |
297 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
298 | return "STATE_AFTER_TRACE_PACKET_HEADER"; | |
299 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
300 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN"; | |
301 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
302 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE"; | |
303 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
304 | return "STATE_AFTER_STREAM_PACKET_CONTEXT"; | |
305 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
306 | return "STATE_EMIT_NOTIF_NEW_PACKET"; | |
6ff151ad PP |
307 | case STATE_EMIT_NOTIF_NEW_STREAM: |
308 | return "STATE_EMIT_NOTIF_NEW_STREAM"; | |
fdf0e7a0 PP |
309 | case STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN: |
310 | return "STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN"; | |
311 | case STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE: | |
312 | return "STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE"; | |
313 | case STATE_AFTER_STREAM_EVENT_HEADER: | |
314 | return "STATE_AFTER_STREAM_EVENT_HEADER"; | |
315 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN: | |
316 | return "STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN"; | |
317 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE: | |
318 | return "STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE"; | |
319 | case STATE_DSCOPE_EVENT_CONTEXT_BEGIN: | |
320 | return "STATE_DSCOPE_EVENT_CONTEXT_BEGIN"; | |
321 | case STATE_DSCOPE_EVENT_CONTEXT_CONTINUE: | |
322 | return "STATE_DSCOPE_EVENT_CONTEXT_CONTINUE"; | |
323 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
324 | return "STATE_DSCOPE_EVENT_PAYLOAD_BEGIN"; | |
325 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
326 | return "STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE"; | |
327 | case STATE_EMIT_NOTIF_EVENT: | |
328 | return "STATE_EMIT_NOTIF_EVENT"; | |
329 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
330 | return "STATE_EMIT_NOTIF_END_OF_PACKET"; | |
6ff151ad PP |
331 | case STATE_DONE: |
332 | return "STATE_DONE"; | |
fdf0e7a0 PP |
333 | case STATE_SKIP_PACKET_PADDING: |
334 | return "STATE_SKIP_PACKET_PADDING"; | |
335 | default: | |
336 | return "(unknown)"; | |
337 | } | |
338 | } | |
339 | ||
2cf1d51e | 340 | static |
839d52a5 | 341 | int bt_notif_iter_switch_packet(struct bt_notif_iter *notit); |
2cf1d51e | 342 | |
5f870343 | 343 | static |
839d52a5 PP |
344 | enum bt_btr_status btr_timestamp_end_cb(void *value, |
345 | struct bt_field_type *type, void *data); | |
5f870343 | 346 | |
e98a2d6e | 347 | static |
839d52a5 | 348 | struct stack *stack_new(struct bt_notif_iter *notit) |
e98a2d6e PP |
349 | { |
350 | struct stack *stack = NULL; | |
351 | ||
352 | stack = g_new0(struct stack, 1); | |
353 | if (!stack) { | |
fdf0e7a0 | 354 | BT_LOGE_STR("Failed to allocate one stack."); |
e98a2d6e PP |
355 | goto error; |
356 | } | |
357 | ||
87bdbbb0 | 358 | stack->entries = g_array_new(FALSE, TRUE, sizeof(struct stack_entry)); |
e98a2d6e | 359 | if (!stack->entries) { |
87bdbbb0 | 360 | BT_LOGE_STR("Failed to allocate a GArray."); |
e98a2d6e PP |
361 | goto error; |
362 | } | |
363 | ||
fdf0e7a0 | 364 | BT_LOGD("Created stack: notit-addr=%p, stack-addr=%p", notit, stack); |
e98a2d6e | 365 | return stack; |
fdf0e7a0 | 366 | |
e98a2d6e PP |
367 | error: |
368 | g_free(stack); | |
e98a2d6e PP |
369 | return NULL; |
370 | } | |
371 | ||
372 | static | |
373 | void stack_destroy(struct stack *stack) | |
374 | { | |
8b45963b | 375 | BT_ASSERT(stack); |
fdf0e7a0 | 376 | BT_LOGD("Destroying stack: addr=%p", stack); |
87bdbbb0 PP |
377 | |
378 | if (stack->entries) { | |
379 | g_array_free(stack->entries, TRUE); | |
380 | } | |
381 | ||
e98a2d6e PP |
382 | g_free(stack); |
383 | } | |
384 | ||
385 | static | |
839d52a5 | 386 | int stack_push(struct stack *stack, struct bt_field *base) |
e98a2d6e | 387 | { |
e98a2d6e | 388 | struct stack_entry *entry; |
e98a2d6e | 389 | |
8b45963b PP |
390 | BT_ASSERT(stack); |
391 | BT_ASSERT(base); | |
fdf0e7a0 | 392 | BT_LOGV("Pushing base field on stack: stack-addr=%p, " |
87bdbbb0 PP |
393 | "stack-size-before=%zu, stack-size-after=%zu", |
394 | stack, stack->size, stack->size + 1); | |
395 | ||
396 | if (stack->entries->len == stack->size) { | |
397 | g_array_set_size(stack->entries, stack->size + 1); | |
e98a2d6e PP |
398 | } |
399 | ||
87bdbbb0 | 400 | entry = &g_array_index(stack->entries, struct stack_entry, stack->size); |
a6918753 | 401 | entry->base = base; |
87bdbbb0 PP |
402 | entry->index = 0; |
403 | stack->size++; | |
404 | return 0; | |
e98a2d6e PP |
405 | } |
406 | ||
407 | static inline | |
408 | unsigned int stack_size(struct stack *stack) | |
409 | { | |
8b45963b | 410 | BT_ASSERT(stack); |
87bdbbb0 | 411 | return stack->size; |
e98a2d6e PP |
412 | } |
413 | ||
414 | static | |
415 | void stack_pop(struct stack *stack) | |
416 | { | |
8b45963b PP |
417 | BT_ASSERT(stack); |
418 | BT_ASSERT(stack_size(stack)); | |
fdf0e7a0 | 419 | BT_LOGV("Popping from stack: " |
87bdbbb0 PP |
420 | "stack-addr=%p, stack-size-before=%zu, stack-size-after=%zu", |
421 | stack, stack->size, stack->size - 1); | |
422 | stack->size--; | |
e98a2d6e PP |
423 | } |
424 | ||
425 | static inline | |
426 | struct stack_entry *stack_top(struct stack *stack) | |
427 | { | |
8b45963b PP |
428 | BT_ASSERT(stack); |
429 | BT_ASSERT(stack_size(stack)); | |
87bdbbb0 PP |
430 | return &g_array_index(stack->entries, struct stack_entry, |
431 | stack->size - 1); | |
e98a2d6e PP |
432 | } |
433 | ||
434 | static inline | |
435 | bool stack_empty(struct stack *stack) | |
436 | { | |
437 | return stack_size(stack) == 0; | |
438 | } | |
439 | ||
440 | static | |
441 | void stack_clear(struct stack *stack) | |
442 | { | |
8b45963b | 443 | BT_ASSERT(stack); |
87bdbbb0 | 444 | stack->size = 0; |
e98a2d6e PP |
445 | } |
446 | ||
447 | static inline | |
839d52a5 PP |
448 | enum bt_notif_iter_status notif_iter_status_from_m_status( |
449 | enum bt_notif_iter_medium_status m_status) | |
e98a2d6e | 450 | { |
dc77b521 | 451 | return (int) m_status; |
e98a2d6e PP |
452 | } |
453 | ||
454 | static inline | |
839d52a5 | 455 | size_t buf_size_bits(struct bt_notif_iter *notit) |
e98a2d6e | 456 | { |
fdf0e7a0 | 457 | return notit->buf.sz * 8; |
e98a2d6e PP |
458 | } |
459 | ||
460 | static inline | |
839d52a5 | 461 | size_t buf_available_bits(struct bt_notif_iter *notit) |
e98a2d6e PP |
462 | { |
463 | return buf_size_bits(notit) - notit->buf.at; | |
464 | } | |
465 | ||
466 | static inline | |
839d52a5 | 467 | size_t packet_at(struct bt_notif_iter *notit) |
e98a2d6e PP |
468 | { |
469 | return notit->buf.packet_offset + notit->buf.at; | |
470 | } | |
471 | ||
e98a2d6e | 472 | static inline |
839d52a5 | 473 | void buf_consume_bits(struct bt_notif_iter *notit, size_t incr) |
e98a2d6e | 474 | { |
fdf0e7a0 PP |
475 | BT_LOGV("Advancing cursor: notit-addr=%p, cur-before=%zu, cur-after=%zu", |
476 | notit, notit->buf.at, notit->buf.at + incr); | |
e98a2d6e PP |
477 | notit->buf.at += incr; |
478 | } | |
479 | ||
e98a2d6e | 480 | static |
839d52a5 PP |
481 | enum bt_notif_iter_status request_medium_bytes( |
482 | struct bt_notif_iter *notit) | |
e98a2d6e | 483 | { |
fdf0e7a0 PP |
484 | uint8_t *buffer_addr = NULL; |
485 | size_t buffer_sz = 0; | |
839d52a5 | 486 | enum bt_notif_iter_medium_status m_status; |
e98a2d6e | 487 | |
fdf0e7a0 PP |
488 | BT_LOGV("Calling user function (request bytes): notit-addr=%p, " |
489 | "request-size=%zu", notit, notit->medium.max_request_sz); | |
e98a2d6e PP |
490 | m_status = notit->medium.medops.request_bytes( |
491 | notit->medium.max_request_sz, &buffer_addr, | |
492 | &buffer_sz, notit->medium.data); | |
fdf0e7a0 | 493 | BT_LOGV("User function returned: status=%s, buf-addr=%p, buf-size=%zu", |
839d52a5 | 494 | bt_notif_iter_medium_status_string(m_status), |
fdf0e7a0 | 495 | buffer_addr, buffer_sz); |
839d52a5 | 496 | if (m_status == BT_NOTIF_ITER_MEDIUM_STATUS_OK) { |
8b45963b | 497 | BT_ASSERT(buffer_sz != 0); |
e98a2d6e PP |
498 | |
499 | /* New packet offset is old one + old size (in bits) */ | |
500 | notit->buf.packet_offset += buf_size_bits(notit); | |
501 | ||
502 | /* Restart at the beginning of the new medium buffer */ | |
503 | notit->buf.at = 0; | |
bb8744a7 | 504 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
505 | |
506 | /* New medium buffer size */ | |
507 | notit->buf.sz = buffer_sz; | |
508 | ||
509 | /* New medium buffer address */ | |
510 | notit->buf.addr = buffer_addr; | |
fdf0e7a0 PP |
511 | |
512 | BT_LOGV("User function returned new bytes: " | |
513 | "packet-offset=%zu, cur=%zu, size=%zu, addr=%p", | |
514 | notit->buf.packet_offset, notit->buf.at, | |
515 | notit->buf.sz, notit->buf.addr); | |
516 | BT_LOGV_MEM(buffer_addr, buffer_sz, "Returned bytes at %p:", | |
517 | buffer_addr); | |
839d52a5 | 518 | } else if (m_status == BT_NOTIF_ITER_MEDIUM_STATUS_EOF) { |
7116f6c0 PP |
519 | /* |
520 | * User returned end of stream: validate that we're not | |
521 | * in the middle of a packet header, packet context, or | |
522 | * event. | |
523 | */ | |
42ef5ec2 PP |
524 | if (notit->cur_packet_size >= 0) { |
525 | if (packet_at(notit) == notit->cur_packet_size) { | |
526 | goto end; | |
7116f6c0 | 527 | } |
42ef5ec2 PP |
528 | } else { |
529 | if (packet_at(notit) == 0) { | |
530 | goto end; | |
7116f6c0 | 531 | } |
7116f6c0 | 532 | |
42ef5ec2 PP |
533 | if (notit->buf.last_eh_at != SIZE_MAX && |
534 | notit->buf.at == notit->buf.last_eh_at) { | |
535 | goto end; | |
7116f6c0 PP |
536 | } |
537 | } | |
538 | ||
7116f6c0 PP |
539 | /* All other states are invalid */ |
540 | BT_LOGW("User function returned %s, but notification iterator is in an unexpected state: " | |
42ef5ec2 PP |
541 | "state=%s, cur-packet-size=%" PRId64 ", cur=%zu, " |
542 | "packet-cur=%zu, last-eh-at=%zu", | |
839d52a5 | 543 | bt_notif_iter_medium_status_string(m_status), |
42ef5ec2 PP |
544 | state_string(notit->state), |
545 | notit->cur_packet_size, | |
546 | notit->buf.at, packet_at(notit), | |
547 | notit->buf.last_eh_at); | |
839d52a5 | 548 | m_status = BT_NOTIF_ITER_MEDIUM_STATUS_ERROR; |
fdf0e7a0 PP |
549 | } else if (m_status < 0) { |
550 | BT_LOGW("User function failed: status=%s", | |
839d52a5 | 551 | bt_notif_iter_medium_status_string(m_status)); |
e98a2d6e PP |
552 | } |
553 | ||
42ef5ec2 | 554 | end: |
e98a2d6e PP |
555 | return notif_iter_status_from_m_status(m_status); |
556 | } | |
557 | ||
558 | static inline | |
839d52a5 PP |
559 | enum bt_notif_iter_status buf_ensure_available_bits( |
560 | struct bt_notif_iter *notit) | |
e98a2d6e | 561 | { |
839d52a5 | 562 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e PP |
563 | |
564 | if (buf_available_bits(notit) == 0) { | |
565 | /* | |
839d52a5 | 566 | * This _cannot_ return BT_NOTIF_ITER_STATUS_OK |
e98a2d6e PP |
567 | * _and_ no bits. |
568 | */ | |
569 | status = request_medium_bytes(notit); | |
570 | } | |
571 | ||
572 | return status; | |
573 | } | |
574 | ||
8fc063a2 PP |
575 | static inline |
576 | void reset_clock_value(struct clock_value *cv) | |
577 | { | |
578 | BT_ASSERT(cv); | |
579 | cv->clock_class = NULL; | |
580 | cv->raw_value = UINT64_C(-1); | |
581 | } | |
582 | ||
e98a2d6e | 583 | static |
839d52a5 PP |
584 | enum bt_notif_iter_status read_dscope_begin_state( |
585 | struct bt_notif_iter *notit, | |
586 | struct bt_field_type *dscope_field_type, | |
e98a2d6e | 587 | enum state done_state, enum state continue_state, |
a6918753 | 588 | struct bt_field *dscope_field) |
e98a2d6e | 589 | { |
839d52a5 PP |
590 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
591 | enum bt_btr_status btr_status; | |
e98a2d6e PP |
592 | size_t consumed_bits; |
593 | ||
e98a2d6e | 594 | notit->cur_dscope_field = dscope_field; |
fdf0e7a0 PP |
595 | BT_LOGV("Starting BTR: notit-addr=%p, btr-addr=%p, ft-addr=%p", |
596 | notit, notit->btr, dscope_field_type); | |
839d52a5 | 597 | consumed_bits = bt_btr_start(notit->btr, dscope_field_type, |
e98a2d6e PP |
598 | notit->buf.addr, notit->buf.at, packet_at(notit), |
599 | notit->buf.sz, &btr_status); | |
fdf0e7a0 | 600 | BT_LOGV("BTR consumed bits: size=%zu", consumed_bits); |
e98a2d6e PP |
601 | |
602 | switch (btr_status) { | |
839d52a5 | 603 | case BT_BTR_STATUS_OK: |
e98a2d6e | 604 | /* type was read completely */ |
fdf0e7a0 | 605 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
606 | notit->state = done_state; |
607 | break; | |
839d52a5 | 608 | case BT_BTR_STATUS_EOF: |
fdf0e7a0 | 609 | BT_LOGV_STR("BTR needs more data to decode field completely."); |
e98a2d6e PP |
610 | notit->state = continue_state; |
611 | break; | |
612 | default: | |
fdf0e7a0 PP |
613 | BT_LOGW("BTR failed to start: notit-addr=%p, btr-addr=%p, " |
614 | "status=%s", notit, notit->btr, | |
839d52a5 PP |
615 | bt_btr_status_string(btr_status)); |
616 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
e98a2d6e PP |
617 | goto end; |
618 | } | |
619 | ||
620 | /* Consume bits now since we know we're not in an error state */ | |
621 | buf_consume_bits(notit, consumed_bits); | |
622 | ||
623 | end: | |
624 | return status; | |
625 | } | |
626 | ||
627 | static | |
839d52a5 PP |
628 | enum bt_notif_iter_status read_dscope_continue_state( |
629 | struct bt_notif_iter *notit, enum state done_state) | |
e98a2d6e | 630 | { |
839d52a5 PP |
631 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
632 | enum bt_btr_status btr_status; | |
e98a2d6e PP |
633 | size_t consumed_bits; |
634 | ||
42ef5ec2 PP |
635 | BT_LOGV("Continuing BTR: notit-addr=%p, btr-addr=%p", |
636 | notit, notit->btr); | |
637 | ||
e98a2d6e | 638 | status = buf_ensure_available_bits(notit); |
839d52a5 | 639 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
fdf0e7a0 PP |
640 | if (status < 0) { |
641 | BT_LOGW("Cannot ensure that buffer has at least one byte: " | |
642 | "notif-addr=%p, status=%s", | |
839d52a5 | 643 | notit, bt_notif_iter_status_string(status)); |
fdf0e7a0 PP |
644 | } else { |
645 | BT_LOGV("Cannot ensure that buffer has at least one byte: " | |
646 | "notif-addr=%p, status=%s", | |
839d52a5 | 647 | notit, bt_notif_iter_status_string(status)); |
fdf0e7a0 PP |
648 | } |
649 | ||
e98a2d6e PP |
650 | goto end; |
651 | } | |
652 | ||
42ef5ec2 | 653 | |
839d52a5 | 654 | consumed_bits = bt_btr_continue(notit->btr, notit->buf.addr, |
fdf0e7a0 PP |
655 | notit->buf.sz, &btr_status); |
656 | BT_LOGV("BTR consumed bits: size=%zu", consumed_bits); | |
e98a2d6e PP |
657 | |
658 | switch (btr_status) { | |
839d52a5 | 659 | case BT_BTR_STATUS_OK: |
78586d8a | 660 | /* Type was read completely. */ |
fdf0e7a0 | 661 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
662 | notit->state = done_state; |
663 | break; | |
839d52a5 | 664 | case BT_BTR_STATUS_EOF: |
78586d8a | 665 | /* Stay in this continue state. */ |
fdf0e7a0 | 666 | BT_LOGV_STR("BTR needs more data to decode field completely."); |
e98a2d6e PP |
667 | break; |
668 | default: | |
fdf0e7a0 PP |
669 | BT_LOGW("BTR failed to continue: notit-addr=%p, btr-addr=%p, " |
670 | "status=%s", notit, notit->btr, | |
839d52a5 PP |
671 | bt_btr_status_string(btr_status)); |
672 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
e98a2d6e PP |
673 | goto end; |
674 | } | |
675 | ||
78586d8a | 676 | /* Consume bits now since we know we're not in an error state. */ |
e98a2d6e | 677 | buf_consume_bits(notit, consumed_bits); |
e98a2d6e PP |
678 | end: |
679 | return status; | |
680 | } | |
681 | ||
682 | static | |
a6918753 | 683 | void release_event_dscopes(struct bt_notif_iter *notit) |
e98a2d6e | 684 | { |
a6918753 PP |
685 | notit->dscopes.stream_event_header = NULL; |
686 | ||
687 | if (notit->event_header_field) { | |
688 | bt_event_header_field_release(notit->event_header_field); | |
689 | notit->event_header_field = NULL; | |
690 | } | |
691 | ||
692 | notit->dscopes.stream_event_context = NULL; | |
693 | notit->dscopes.event_context = NULL; | |
694 | notit->dscopes.event_payload = NULL; | |
e98a2d6e PP |
695 | } |
696 | ||
697 | static | |
a6918753 | 698 | void release_all_dscopes(struct bt_notif_iter *notit) |
e98a2d6e | 699 | { |
a6918753 PP |
700 | notit->dscopes.trace_packet_header = NULL; |
701 | ||
702 | if (notit->packet_header_field) { | |
703 | bt_packet_header_field_release(notit->packet_header_field); | |
704 | notit->packet_header_field = NULL; | |
705 | } | |
706 | ||
707 | notit->dscopes.stream_packet_context = NULL; | |
708 | ||
709 | if (notit->packet_context_field) { | |
710 | bt_packet_context_field_release(notit->packet_context_field); | |
711 | notit->packet_context_field = NULL; | |
712 | } | |
713 | ||
714 | release_event_dscopes(notit); | |
e98a2d6e PP |
715 | } |
716 | ||
717 | static | |
839d52a5 PP |
718 | enum bt_notif_iter_status read_packet_header_begin_state( |
719 | struct bt_notif_iter *notit) | |
e98a2d6e | 720 | { |
839d52a5 PP |
721 | struct bt_field_type *packet_header_type = NULL; |
722 | enum bt_notif_iter_status ret = BT_NOTIF_ITER_STATUS_OK; | |
e98a2d6e | 723 | |
839d52a5 | 724 | if (bt_notif_iter_switch_packet(notit)) { |
fdf0e7a0 | 725 | BT_LOGW("Cannot switch packet: notit-addr=%p", notit); |
839d52a5 | 726 | ret = BT_NOTIF_ITER_STATUS_ERROR; |
2cf1d51e JG |
727 | goto end; |
728 | } | |
e98a2d6e | 729 | |
2cf1d51e | 730 | /* Packet header type is common to the whole trace. */ |
b8418c69 | 731 | packet_header_type = bt_trace_borrow_packet_header_field_type( |
78586d8a | 732 | notit->meta.trace); |
e98a2d6e | 733 | if (!packet_header_type) { |
835b2d10 | 734 | notit->state = STATE_AFTER_TRACE_PACKET_HEADER; |
e98a2d6e PP |
735 | goto end; |
736 | } | |
737 | ||
a6918753 PP |
738 | /* |
739 | * Create free packet header field from trace. This field is | |
740 | * going to be moved to the packet once we create it. We cannot | |
741 | * create the packet now because: | |
742 | * | |
743 | * 1. A packet is created from a stream. | |
744 | * 2. A stream is created from a stream class. | |
745 | * 3. We need the packet header field's content to know the ID | |
746 | * of the stream class to select. | |
747 | */ | |
748 | BT_ASSERT(!notit->packet_header_field); | |
749 | notit->packet_header_field = bt_trace_create_packet_header_field( | |
750 | notit->meta.trace); | |
751 | if (!notit->packet_header_field) { | |
752 | BT_LOGE_STR("Cannot create packet header field wrapper from trace."); | |
753 | ret = BT_NOTIF_ITER_STATUS_ERROR; | |
754 | goto end; | |
755 | } | |
756 | ||
757 | notit->dscopes.trace_packet_header = | |
758 | bt_packet_header_field_borrow_field(notit->packet_header_field); | |
759 | BT_ASSERT(notit->dscopes.trace_packet_header); | |
fdf0e7a0 PP |
760 | BT_LOGV("Decoding packet header field:" |
761 | "notit-addr=%p, trace-addr=%p, trace-name=\"%s\", ft-addr=%p", | |
762 | notit, notit->meta.trace, | |
839d52a5 | 763 | bt_trace_get_name(notit->meta.trace), packet_header_type); |
2cf1d51e | 764 | ret = read_dscope_begin_state(notit, packet_header_type, |
fdf0e7a0 PP |
765 | STATE_AFTER_TRACE_PACKET_HEADER, |
766 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
a6918753 | 767 | notit->dscopes.trace_packet_header); |
fdf0e7a0 PP |
768 | if (ret < 0) { |
769 | BT_LOGW("Cannot decode packet header field: " | |
770 | "notit-addr=%p, trace-addr=%p, " | |
771 | "trace-name=\"%s\", ft-addr=%p", | |
772 | notit, notit->meta.trace, | |
839d52a5 | 773 | bt_trace_get_name(notit->meta.trace), |
fdf0e7a0 PP |
774 | packet_header_type); |
775 | } | |
b8418c69 | 776 | |
e98a2d6e | 777 | end: |
2cf1d51e | 778 | return ret; |
e98a2d6e PP |
779 | } |
780 | ||
781 | static | |
839d52a5 PP |
782 | enum bt_notif_iter_status read_packet_header_continue_state( |
783 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
784 | { |
785 | return read_dscope_continue_state(notit, | |
78586d8a | 786 | STATE_AFTER_TRACE_PACKET_HEADER); |
e98a2d6e PP |
787 | } |
788 | ||
5f870343 JG |
789 | static |
790 | struct stream_class_field_path_cache * | |
791 | create_stream_class_field_path_cache_entry( | |
839d52a5 PP |
792 | struct bt_notif_iter *notit, |
793 | struct bt_stream_class *stream_class) | |
5f870343 JG |
794 | { |
795 | int v = -1; | |
796 | int id = -1; | |
797 | int timestamp_end = -1; | |
798 | int packet_size = -1; | |
799 | int content_size = -1; | |
800 | struct stream_class_field_path_cache *cache_entry = g_new0( | |
801 | struct stream_class_field_path_cache, 1); | |
839d52a5 | 802 | struct bt_field_type *event_header = NULL, *packet_context = NULL; |
5f870343 JG |
803 | |
804 | if (!cache_entry) { | |
fdf0e7a0 | 805 | BT_LOGE_STR("Failed to allocate one stream class field path cache."); |
5f870343 JG |
806 | goto end; |
807 | } | |
808 | ||
b8418c69 PP |
809 | event_header = bt_stream_class_borrow_event_header_field_type( |
810 | stream_class); | |
839d52a5 | 811 | if (event_header && bt_field_type_is_structure(event_header)) { |
5f870343 JG |
812 | int i, count; |
813 | ||
839d52a5 | 814 | count = bt_field_type_structure_get_field_count( |
fdf0e7a0 | 815 | event_header); |
8b45963b | 816 | BT_ASSERT(count >= 0); |
fdf0e7a0 | 817 | |
5f870343 JG |
818 | for (i = 0; i < count; i++) { |
819 | int ret; | |
820 | const char *name; | |
821 | ||
b8418c69 | 822 | ret = bt_field_type_structure_borrow_field_by_index( |
5f870343 JG |
823 | event_header, &name, NULL, i); |
824 | if (ret) { | |
fdf0e7a0 PP |
825 | BT_LOGE("Cannot get event header structure field type's field: " |
826 | "notit-addr=%p, stream-class-addr=%p, " | |
827 | "stream-class-name=\"%s\", " | |
828 | "stream-class-id=%" PRId64 ", " | |
829 | "ft-addr=%p, index=%d", | |
830 | notit, stream_class, | |
839d52a5 PP |
831 | bt_stream_class_get_name(stream_class), |
832 | bt_stream_class_get_id(stream_class), | |
fdf0e7a0 | 833 | event_header, i); |
5f870343 JG |
834 | goto error; |
835 | } | |
836 | ||
837 | if (v != -1 && id != -1) { | |
838 | break; | |
839 | } | |
fdf0e7a0 PP |
840 | |
841 | if (v == -1 && strcmp(name, "v") == 0) { | |
5f870343 JG |
842 | v = i; |
843 | } else if (id == -1 && !strcmp(name, "id")) { | |
844 | id = i; | |
845 | } | |
846 | } | |
847 | } | |
848 | ||
b8418c69 | 849 | packet_context = bt_stream_class_borrow_packet_context_field_type( |
5f870343 | 850 | stream_class); |
839d52a5 | 851 | if (packet_context && bt_field_type_is_structure(packet_context)) { |
5f870343 JG |
852 | int i, count; |
853 | ||
839d52a5 | 854 | count = bt_field_type_structure_get_field_count( |
fdf0e7a0 | 855 | packet_context); |
8b45963b | 856 | BT_ASSERT(count >= 0); |
fdf0e7a0 | 857 | |
5f870343 JG |
858 | for (i = 0; i < count; i++) { |
859 | int ret; | |
860 | const char *name; | |
839d52a5 | 861 | struct bt_field_type *field_type; |
5f870343 JG |
862 | |
863 | if (timestamp_end != -1 && packet_size != -1 && | |
864 | content_size != -1) { | |
865 | break; | |
866 | } | |
867 | ||
b8418c69 | 868 | ret = bt_field_type_structure_borrow_field_by_index( |
5f870343 JG |
869 | packet_context, &name, &field_type, i); |
870 | if (ret) { | |
fdf0e7a0 PP |
871 | BT_LOGE("Cannot get packet context structure field type's field: " |
872 | "notit-addr=%p, stream-class-addr=%p, " | |
873 | "stream-class-name=\"%s\", " | |
874 | "stream-class-id=%" PRId64 ", " | |
875 | "ft-addr=%p, index=%d", | |
876 | notit, stream_class, | |
839d52a5 PP |
877 | bt_stream_class_get_name(stream_class), |
878 | bt_stream_class_get_id(stream_class), | |
fdf0e7a0 | 879 | event_header, i); |
5f870343 JG |
880 | goto error; |
881 | } | |
882 | ||
883 | if (timestamp_end == -1 && | |
fdf0e7a0 | 884 | strcmp(name, "timestamp_end") == 0) { |
5f870343 JG |
885 | struct field_cb_override *override = g_new0( |
886 | struct field_cb_override, 1); | |
887 | ||
888 | if (!override) { | |
5f870343 JG |
889 | goto error; |
890 | } | |
891 | ||
892 | override->func = btr_timestamp_end_cb; | |
893 | override->data = notit; | |
5f870343 | 894 | g_hash_table_insert(notit->field_overrides, |
b8418c69 | 895 | field_type, override); |
5f870343 JG |
896 | timestamp_end = i; |
897 | } else if (packet_size == -1 && | |
898 | !strcmp(name, "packet_size")) { | |
899 | packet_size = i; | |
900 | } else if (content_size == -1 && | |
901 | !strcmp(name, "content_size")) { | |
902 | content_size = i; | |
903 | } | |
5f870343 JG |
904 | } |
905 | } | |
906 | ||
907 | cache_entry->v = v; | |
908 | cache_entry->id = id; | |
909 | cache_entry->timestamp_end = timestamp_end; | |
910 | cache_entry->packet_size = packet_size; | |
911 | cache_entry->content_size = content_size; | |
b8418c69 | 912 | |
5f870343 | 913 | end: |
5f870343 | 914 | return cache_entry; |
b8418c69 | 915 | |
5f870343 JG |
916 | error: |
917 | g_free(cache_entry); | |
918 | cache_entry = NULL; | |
919 | goto end; | |
920 | } | |
921 | ||
922 | static | |
923 | struct stream_class_field_path_cache *get_stream_class_field_path_cache( | |
839d52a5 PP |
924 | struct bt_notif_iter *notit, |
925 | struct bt_stream_class *stream_class) | |
5f870343 JG |
926 | { |
927 | bool cache_entry_found; | |
928 | struct stream_class_field_path_cache *cache_entry; | |
929 | ||
930 | cache_entry_found = g_hash_table_lookup_extended( | |
931 | notit->sc_field_path_caches, | |
932 | stream_class, NULL, (gpointer) &cache_entry); | |
933 | if (unlikely(!cache_entry_found)) { | |
934 | cache_entry = create_stream_class_field_path_cache_entry(notit, | |
fdf0e7a0 | 935 | stream_class); |
5f870343 | 936 | g_hash_table_insert(notit->sc_field_path_caches, |
b8418c69 | 937 | stream_class, (gpointer) cache_entry); |
5f870343 JG |
938 | } |
939 | ||
940 | return cache_entry; | |
941 | } | |
942 | ||
e98a2d6e | 943 | static inline |
839d52a5 PP |
944 | enum bt_notif_iter_status set_current_stream_class( |
945 | struct bt_notif_iter *notit) | |
e98a2d6e | 946 | { |
839d52a5 PP |
947 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
948 | struct bt_field_type *packet_header_type = NULL; | |
949 | struct bt_field_type *stream_id_field_type = NULL; | |
950 | struct bt_stream_class *new_stream_class = NULL; | |
e98a2d6e PP |
951 | uint64_t stream_id; |
952 | ||
5f870343 JG |
953 | /* Clear the current stream class field path cache. */ |
954 | notit->cur_sc_field_path_cache = NULL; | |
955 | ||
e98a2d6e | 956 | /* Is there any "stream_id" field in the packet header? */ |
b8418c69 | 957 | packet_header_type = bt_trace_borrow_packet_header_field_type( |
fdf0e7a0 | 958 | notit->meta.trace); |
e98a2d6e | 959 | if (!packet_header_type) { |
fdf0e7a0 PP |
960 | /* |
961 | * No packet header, therefore no `stream_id` field, | |
962 | * therefore only one stream class. | |
963 | */ | |
964 | goto single_stream_class; | |
e98a2d6e PP |
965 | } |
966 | ||
a6918753 | 967 | BT_ASSERT(bt_field_type_is_structure(packet_header_type)); |
e98a2d6e PP |
968 | |
969 | // TODO: optimalize! | |
970 | stream_id_field_type = | |
b8418c69 | 971 | bt_field_type_structure_borrow_field_type_by_name( |
fdf0e7a0 | 972 | packet_header_type, "stream_id"); |
e98a2d6e PP |
973 | if (stream_id_field_type) { |
974 | /* Find appropriate stream class using current stream ID */ | |
e98a2d6e | 975 | int ret; |
839d52a5 | 976 | struct bt_field *stream_id_field = NULL; |
e98a2d6e | 977 | |
8b45963b | 978 | BT_ASSERT(notit->dscopes.trace_packet_header); |
e98a2d6e PP |
979 | |
980 | // TODO: optimalize! | |
a6918753 | 981 | stream_id_field = bt_field_structure_borrow_field_by_name( |
78586d8a | 982 | notit->dscopes.trace_packet_header, "stream_id"); |
8b45963b | 983 | BT_ASSERT(stream_id_field); |
8deee039 | 984 | ret = bt_field_integer_unsigned_get_value( |
78586d8a | 985 | stream_id_field, &stream_id); |
8b45963b | 986 | BT_ASSERT(!ret); |
e98a2d6e | 987 | } else { |
fdf0e7a0 | 988 | single_stream_class: |
e98a2d6e | 989 | /* Only one stream: pick the first stream class */ |
8b45963b | 990 | BT_ASSERT(bt_trace_get_stream_class_count( |
78586d8a | 991 | notit->meta.trace) == 1); |
e98a2d6e PP |
992 | stream_id = 0; |
993 | } | |
994 | ||
fdf0e7a0 PP |
995 | BT_LOGV("Found stream class ID to use: notit-addr=%p, " |
996 | "stream-class-id=%" PRIu64 ", " | |
997 | "trace-addr=%p, trace-name=\"%s\"", | |
998 | notit, stream_id, notit->meta.trace, | |
839d52a5 | 999 | bt_trace_get_name(notit->meta.trace)); |
fdf0e7a0 | 1000 | |
b8418c69 | 1001 | new_stream_class = bt_trace_borrow_stream_class_by_id( |
fdf0e7a0 | 1002 | notit->meta.trace, stream_id); |
c937c615 | 1003 | if (!new_stream_class) { |
fdf0e7a0 PP |
1004 | BT_LOGW("No stream class with ID of stream class ID to use in trace: " |
1005 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " | |
1006 | "trace-addr=%p, trace-name=\"%s\"", | |
1007 | notit, stream_id, notit->meta.trace, | |
839d52a5 PP |
1008 | bt_trace_get_name(notit->meta.trace)); |
1009 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
e98a2d6e PP |
1010 | goto end; |
1011 | } | |
1012 | ||
c937c615 PP |
1013 | if (notit->meta.stream_class) { |
1014 | if (new_stream_class != notit->meta.stream_class) { | |
1015 | BT_LOGW("Two packets refer to two different stream classes within the same packet sequence: " | |
1016 | "notit-addr=%p, prev-stream-class-addr=%p, " | |
1017 | "prev-stream-class-name=\"%s\", " | |
1018 | "prev-stream-class-id=%" PRId64 ", " | |
1019 | "next-stream-class-addr=%p, " | |
1020 | "next-stream-class-name=\"%s\", " | |
1021 | "next-stream-class-id=%" PRId64 ", " | |
1022 | "trace-addr=%p, trace-name=\"%s\"", | |
1023 | notit, notit->meta.stream_class, | |
839d52a5 PP |
1024 | bt_stream_class_get_name(notit->meta.stream_class), |
1025 | bt_stream_class_get_id(notit->meta.stream_class), | |
c937c615 | 1026 | new_stream_class, |
839d52a5 PP |
1027 | bt_stream_class_get_name(new_stream_class), |
1028 | bt_stream_class_get_id(new_stream_class), | |
c937c615 | 1029 | notit->meta.trace, |
839d52a5 PP |
1030 | bt_trace_get_name(notit->meta.trace)); |
1031 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
c937c615 PP |
1032 | goto end; |
1033 | } | |
1034 | } else { | |
b8418c69 | 1035 | notit->meta.stream_class = new_stream_class; |
c937c615 PP |
1036 | } |
1037 | ||
fdf0e7a0 PP |
1038 | BT_LOGV("Set current stream class: " |
1039 | "notit-addr=%p, stream-class-addr=%p, " | |
1040 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1041 | notit, notit->meta.stream_class, | |
839d52a5 PP |
1042 | bt_stream_class_get_name(notit->meta.stream_class), |
1043 | bt_stream_class_get_id(notit->meta.stream_class)); | |
fdf0e7a0 | 1044 | |
5f870343 JG |
1045 | /* |
1046 | * Retrieve (or lazily create) the current stream class field path | |
1047 | * cache. | |
1048 | */ | |
1049 | notit->cur_sc_field_path_cache = get_stream_class_field_path_cache( | |
fdf0e7a0 | 1050 | notit, notit->meta.stream_class); |
5f870343 | 1051 | if (!notit->cur_sc_field_path_cache) { |
fdf0e7a0 PP |
1052 | BT_LOGW("Cannot retrieve stream class field path from cache: " |
1053 | "notit-addr=%p, stream-class-addr=%p, " | |
1054 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1055 | notit, notit->meta.stream_class, | |
839d52a5 PP |
1056 | bt_stream_class_get_name(notit->meta.stream_class), |
1057 | bt_stream_class_get_id(notit->meta.stream_class)); | |
1058 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
5f870343 JG |
1059 | goto end; |
1060 | } | |
b8418c69 | 1061 | |
e98a2d6e | 1062 | end: |
e98a2d6e PP |
1063 | return status; |
1064 | } | |
1065 | ||
a6918753 PP |
1066 | static inline |
1067 | uint64_t get_cur_stream_instance_id(struct bt_notif_iter *notit) | |
1068 | { | |
1069 | struct bt_field *stream_instance_id_field = NULL; | |
1070 | uint64_t stream_instance_id = -1ULL; | |
1071 | int ret; | |
1072 | ||
1073 | if (!notit->dscopes.trace_packet_header) { | |
1074 | goto end; | |
1075 | } | |
1076 | ||
1077 | stream_instance_id_field = bt_field_structure_borrow_field_by_name( | |
1078 | notit->dscopes.trace_packet_header, "stream_instance_id"); | |
1079 | if (!stream_instance_id_field) { | |
1080 | goto end; | |
1081 | } | |
1082 | ||
1083 | ret = bt_field_integer_unsigned_get_value(stream_instance_id_field, | |
1084 | &stream_instance_id); | |
1085 | if (ret) { | |
1086 | stream_instance_id = -1ULL; | |
1087 | goto end; | |
1088 | } | |
1089 | ||
1090 | end: | |
1091 | return stream_instance_id; | |
1092 | } | |
1093 | ||
1094 | static inline | |
1095 | enum bt_notif_iter_status set_current_stream(struct bt_notif_iter *notit) | |
1096 | { | |
1097 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; | |
1098 | struct bt_stream *stream = NULL; | |
1099 | ||
1100 | BT_LOGV("Calling user function (get stream): notit-addr=%p, " | |
1101 | "stream-class-addr=%p, stream-class-name=\"%s\", " | |
1102 | "stream-class-id=%" PRId64, | |
1103 | notit, notit->meta.stream_class, | |
1104 | bt_stream_class_get_name(notit->meta.stream_class), | |
1105 | bt_stream_class_get_id(notit->meta.stream_class)); | |
1106 | stream = bt_get(notit->medium.medops.borrow_stream( | |
1107 | notit->meta.stream_class, get_cur_stream_instance_id(notit), | |
1108 | notit->medium.data)); | |
1109 | BT_LOGV("User function returned: stream-addr=%p", stream); | |
1110 | if (!stream) { | |
1111 | BT_LOGW_STR("User function failed to return a stream object for the given stream class."); | |
1112 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1113 | goto end; | |
1114 | } | |
1115 | ||
1116 | if (notit->stream && stream != notit->stream) { | |
1117 | BT_LOGW("User function returned a different stream than the previous one for the same sequence of packets."); | |
1118 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1119 | goto end; | |
1120 | } | |
1121 | ||
1122 | BT_MOVE(notit->stream, stream); | |
1123 | ||
1124 | end: | |
1125 | bt_put(stream); | |
1126 | return status; | |
1127 | } | |
1128 | ||
1129 | static inline | |
1130 | enum bt_notif_iter_status set_current_packet(struct bt_notif_iter *notit) | |
1131 | { | |
1132 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; | |
1133 | struct bt_packet *packet = NULL; | |
1134 | ||
1135 | BT_LOGV("Creating packet for packet notification: " | |
1136 | "notit-addr=%p", notit); | |
1137 | BT_LOGV("Creating packet from stream: " | |
1138 | "notit-addr=%p, stream-addr=%p, " | |
1139 | "stream-class-addr=%p, " | |
1140 | "stream-class-name=\"%s\", " | |
1141 | "stream-class-id=%" PRId64, | |
1142 | notit, notit->stream, notit->meta.stream_class, | |
1143 | bt_stream_class_get_name(notit->meta.stream_class), | |
1144 | bt_stream_class_get_id(notit->meta.stream_class)); | |
1145 | ||
1146 | /* Create packet */ | |
1147 | BT_ASSERT(notit->stream); | |
e5815ba2 PP |
1148 | packet = bt_packet_create(notit->stream, notit->prev_packet_avail, |
1149 | notit->prev_packet); | |
a6918753 PP |
1150 | if (!packet) { |
1151 | BT_LOGE("Cannot create packet from stream: " | |
1152 | "notit-addr=%p, stream-addr=%p, " | |
1153 | "stream-class-addr=%p, " | |
1154 | "stream-class-name=\"%s\", " | |
1155 | "stream-class-id=%" PRId64, | |
1156 | notit, notit->stream, notit->meta.stream_class, | |
1157 | bt_stream_class_get_name(notit->meta.stream_class), | |
1158 | bt_stream_class_get_id(notit->meta.stream_class)); | |
1159 | goto error; | |
1160 | } | |
1161 | ||
1162 | goto end; | |
1163 | ||
1164 | error: | |
1165 | BT_PUT(packet); | |
1166 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1167 | ||
1168 | end: | |
1169 | BT_MOVE(notit->packet, packet); | |
1170 | return status; | |
1171 | } | |
1172 | ||
e98a2d6e | 1173 | static |
839d52a5 PP |
1174 | enum bt_notif_iter_status after_packet_header_state( |
1175 | struct bt_notif_iter *notit) | |
e98a2d6e | 1176 | { |
839d52a5 | 1177 | enum bt_notif_iter_status status; |
e98a2d6e PP |
1178 | |
1179 | status = set_current_stream_class(notit); | |
a6918753 PP |
1180 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
1181 | goto end; | |
e98a2d6e PP |
1182 | } |
1183 | ||
a6918753 PP |
1184 | notit->state = STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN; |
1185 | ||
1186 | end: | |
e98a2d6e PP |
1187 | return status; |
1188 | } | |
1189 | ||
1190 | static | |
839d52a5 PP |
1191 | enum bt_notif_iter_status read_packet_context_begin_state( |
1192 | struct bt_notif_iter *notit) | |
e98a2d6e | 1193 | { |
839d52a5 PP |
1194 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1195 | struct bt_field_type *packet_context_type; | |
e98a2d6e | 1196 | |
8b45963b | 1197 | BT_ASSERT(notit->meta.stream_class); |
b8418c69 | 1198 | packet_context_type = bt_stream_class_borrow_packet_context_field_type( |
fdf0e7a0 | 1199 | notit->meta.stream_class); |
e98a2d6e | 1200 | if (!packet_context_type) { |
fdf0e7a0 PP |
1201 | BT_LOGV("No packet packet context field type in stream class: continuing: " |
1202 | "notit-addr=%p, stream-class-addr=%p, " | |
1203 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1204 | notit, notit->meta.stream_class, | |
839d52a5 PP |
1205 | bt_stream_class_get_name(notit->meta.stream_class), |
1206 | bt_stream_class_get_id(notit->meta.stream_class)); | |
835b2d10 | 1207 | notit->state = STATE_AFTER_STREAM_PACKET_CONTEXT; |
e98a2d6e PP |
1208 | goto end; |
1209 | } | |
1210 | ||
a6918753 PP |
1211 | /* |
1212 | * Create free packet context field from stream class. This | |
1213 | * field is going to be moved to the packet once we create it. | |
1214 | * We cannot create the packet now because a packet is created | |
1215 | * from a stream, and this API must be able to return the packet | |
1216 | * header and context fields without creating a stream | |
1217 | * (bt_notif_iter_get_packet_header_context_fields()). | |
1218 | */ | |
1219 | BT_ASSERT(!notit->packet_context_field); | |
1220 | notit->packet_context_field = | |
1221 | bt_stream_class_create_packet_context_field( | |
1222 | notit->meta.stream_class); | |
1223 | if (!notit->packet_context_field) { | |
1224 | BT_LOGE_STR("Cannot create packet context field wrapper from stream class."); | |
1225 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1226 | goto end; | |
1227 | } | |
1228 | ||
1229 | notit->dscopes.stream_packet_context = | |
1230 | bt_packet_context_field_borrow_field(notit->packet_context_field); | |
1231 | BT_ASSERT(notit->dscopes.stream_packet_context); | |
fdf0e7a0 PP |
1232 | BT_LOGV("Decoding packet context field: " |
1233 | "notit-addr=%p, stream-class-addr=%p, " | |
1234 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1235 | "ft-addr=%p", | |
1236 | notit, notit->meta.stream_class, | |
839d52a5 PP |
1237 | bt_stream_class_get_name(notit->meta.stream_class), |
1238 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 | 1239 | packet_context_type); |
e98a2d6e | 1240 | status = read_dscope_begin_state(notit, packet_context_type, |
fdf0e7a0 PP |
1241 | STATE_AFTER_STREAM_PACKET_CONTEXT, |
1242 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
a6918753 | 1243 | notit->dscopes.stream_packet_context); |
fdf0e7a0 PP |
1244 | if (status < 0) { |
1245 | BT_LOGW("Cannot decode packet context field: " | |
1246 | "notit-addr=%p, stream-class-addr=%p, " | |
1247 | "stream-class-name=\"%s\", " | |
1248 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1249 | notit, notit->meta.stream_class, | |
839d52a5 PP |
1250 | bt_stream_class_get_name(notit->meta.stream_class), |
1251 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 PP |
1252 | packet_context_type); |
1253 | } | |
e98a2d6e PP |
1254 | |
1255 | end: | |
e98a2d6e PP |
1256 | return status; |
1257 | } | |
1258 | ||
1259 | static | |
839d52a5 PP |
1260 | enum bt_notif_iter_status read_packet_context_continue_state( |
1261 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1262 | { |
1263 | return read_dscope_continue_state(notit, | |
78586d8a | 1264 | STATE_AFTER_STREAM_PACKET_CONTEXT); |
e98a2d6e PP |
1265 | } |
1266 | ||
8fc063a2 PP |
1267 | static inline |
1268 | uint64_t get_field_raw_clock_value(struct bt_field *base_field, | |
1269 | const char *field_name, struct bt_clock_class **user_cc) | |
1270 | { | |
1271 | struct bt_field *field; | |
1272 | struct bt_field_type *ft; | |
1273 | struct bt_clock_class *clock_class = NULL; | |
1274 | uint64_t val = UINT64_C(-1); | |
1275 | int ret; | |
1276 | ||
1277 | field = bt_field_structure_borrow_field_by_name(base_field, field_name); | |
1278 | if (!field) { | |
1279 | goto end; | |
1280 | } | |
1281 | ||
1282 | ft = bt_field_borrow_type(field); | |
1283 | BT_ASSERT(ft); | |
1284 | ||
1285 | if (!bt_field_type_is_integer(ft)) { | |
1286 | goto end; | |
1287 | } | |
1288 | ||
1289 | clock_class = bt_field_type_integer_borrow_mapped_clock_class(ft); | |
1290 | if (!clock_class) { | |
1291 | goto end; | |
1292 | } | |
1293 | ||
1294 | ret = bt_field_integer_unsigned_get_value(field, &val); | |
1295 | BT_ASSERT(ret == 0); | |
1296 | ||
1297 | end: | |
1298 | *user_cc = clock_class; | |
1299 | return val; | |
1300 | } | |
1301 | ||
78586d8a | 1302 | static |
839d52a5 PP |
1303 | enum bt_notif_iter_status set_current_packet_content_sizes( |
1304 | struct bt_notif_iter *notit) | |
e98a2d6e | 1305 | { |
839d52a5 PP |
1306 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1307 | struct bt_field *packet_size_field = NULL; | |
1308 | struct bt_field *content_size_field = NULL; | |
a27839b0 | 1309 | uint64_t content_size = -1ULL, packet_size = -1ULL; |
e98a2d6e | 1310 | |
89b08333 MD |
1311 | if (!notit->dscopes.stream_packet_context) { |
1312 | goto end; | |
1313 | } | |
e98a2d6e | 1314 | |
a6918753 | 1315 | packet_size_field = bt_field_structure_borrow_field_by_name( |
fdf0e7a0 | 1316 | notit->dscopes.stream_packet_context, "packet_size"); |
a6918753 | 1317 | content_size_field = bt_field_structure_borrow_field_by_name( |
fdf0e7a0 | 1318 | notit->dscopes.stream_packet_context, "content_size"); |
e98a2d6e | 1319 | if (packet_size_field) { |
8deee039 | 1320 | int ret = bt_field_integer_unsigned_get_value( |
fdf0e7a0 | 1321 | packet_size_field, &packet_size); |
e98a2d6e | 1322 | |
8b45963b | 1323 | BT_ASSERT(ret == 0); |
e98a2d6e | 1324 | if (packet_size == 0) { |
fdf0e7a0 PP |
1325 | BT_LOGW("Invalid packet size: packet context field indicates packet size is zero: " |
1326 | "notit-addr=%p, packet-context-field-addr=%p", | |
1327 | notit, notit->dscopes.stream_packet_context); | |
839d52a5 | 1328 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
1329 | goto end; |
1330 | } else if ((packet_size % 8) != 0) { | |
fdf0e7a0 PP |
1331 | BT_LOGW("Invalid packet size: packet context field indicates packet size is not a multiple of 8: " |
1332 | "notit-addr=%p, packet-context-field-addr=%p, " | |
1333 | "packet-size=%" PRIu64, | |
1334 | notit, notit->dscopes.stream_packet_context, | |
1335 | packet_size); | |
839d52a5 | 1336 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
1337 | goto end; |
1338 | } | |
1339 | } | |
78586d8a | 1340 | |
e98a2d6e | 1341 | if (content_size_field) { |
8deee039 | 1342 | int ret = bt_field_integer_unsigned_get_value( |
e98a2d6e | 1343 | content_size_field, &content_size); |
78586d8a | 1344 | |
8b45963b | 1345 | BT_ASSERT(ret == 0); |
e98a2d6e PP |
1346 | } else { |
1347 | content_size = packet_size; | |
1348 | } | |
1349 | ||
fdf0e7a0 PP |
1350 | if (content_size > packet_size) { |
1351 | BT_LOGW("Invalid packet or content size: packet context field indicates content size is greater than packet size: " | |
1352 | "notit-addr=%p, packet-context-field-addr=%p, " | |
1353 | "packet-size=%" PRIu64 ", content-size=%" PRIu64, | |
1354 | notit, notit->dscopes.stream_packet_context, | |
1355 | packet_size, content_size); | |
839d52a5 | 1356 | status = BT_NOTIF_ITER_STATUS_ERROR; |
fdf0e7a0 PP |
1357 | goto end; |
1358 | } | |
1359 | ||
a27839b0 MD |
1360 | if (packet_size != -1ULL) { |
1361 | notit->cur_packet_size = packet_size; | |
1362 | } else { | |
1363 | /* | |
1364 | * Use the content size as packet size indicator if the | |
1365 | * packet size field is missing. This means there is no | |
1366 | * padding in this stream. | |
1367 | */ | |
1368 | notit->cur_packet_size = content_size; | |
1369 | } | |
e98a2d6e | 1370 | notit->cur_content_size = content_size; |
fdf0e7a0 PP |
1371 | BT_LOGV("Set current packet and content sizes: " |
1372 | "notit-addr=%p, packet-size=%" PRIu64 ", content-size=%" PRIu64, | |
1373 | notit, packet_size, content_size); | |
e98a2d6e | 1374 | end: |
e98a2d6e PP |
1375 | return status; |
1376 | } | |
1377 | ||
1378 | static | |
839d52a5 PP |
1379 | enum bt_notif_iter_status after_packet_context_state( |
1380 | struct bt_notif_iter *notit) | |
e98a2d6e | 1381 | { |
839d52a5 | 1382 | enum bt_notif_iter_status status; |
e98a2d6e PP |
1383 | |
1384 | status = set_current_packet_content_sizes(notit); | |
8fc063a2 PP |
1385 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
1386 | goto end; | |
1387 | } | |
1388 | ||
8fc063a2 PP |
1389 | if (notit->stream_begin_emitted) { |
1390 | notit->state = STATE_EMIT_NOTIF_NEW_PACKET; | |
1391 | } else { | |
1392 | notit->state = STATE_EMIT_NOTIF_NEW_STREAM; | |
e98a2d6e PP |
1393 | } |
1394 | ||
8fc063a2 | 1395 | end: |
e98a2d6e PP |
1396 | return status; |
1397 | } | |
1398 | ||
1399 | static | |
839d52a5 PP |
1400 | enum bt_notif_iter_status read_event_header_begin_state( |
1401 | struct bt_notif_iter *notit) | |
e98a2d6e | 1402 | { |
839d52a5 PP |
1403 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1404 | struct bt_field_type *event_header_type = NULL; | |
e98a2d6e | 1405 | |
9b876b7b PP |
1406 | /* Reset the position of the last event header */ |
1407 | notit->buf.last_eh_at = notit->buf.at; | |
1408 | ||
e98a2d6e PP |
1409 | /* Check if we have some content left */ |
1410 | if (notit->cur_content_size >= 0) { | |
1411 | if (packet_at(notit) == notit->cur_content_size) { | |
1412 | /* No more events! */ | |
fdf0e7a0 PP |
1413 | BT_LOGV("Reached end of packet: notit-addr=%p, " |
1414 | "cur=%zu", notit, packet_at(notit)); | |
e98a2d6e PP |
1415 | notit->state = STATE_EMIT_NOTIF_END_OF_PACKET; |
1416 | goto end; | |
1417 | } else if (packet_at(notit) > notit->cur_content_size) { | |
1418 | /* That's not supposed to happen */ | |
fdf0e7a0 | 1419 | BT_LOGV("Before decoding event header field: cursor is passed the packet's content: " |
41342c71 | 1420 | "notit-addr=%p, content-size=%" PRId64 ", " |
fdf0e7a0 PP |
1421 | "cur=%zu", notit, notit->cur_content_size, |
1422 | packet_at(notit)); | |
839d52a5 | 1423 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
1424 | goto end; |
1425 | } | |
1426 | } | |
1427 | ||
a6918753 PP |
1428 | release_event_dscopes(notit); |
1429 | BT_ASSERT(notit->meta.stream_class); | |
b8418c69 | 1430 | event_header_type = bt_stream_class_borrow_event_header_field_type( |
e98a2d6e PP |
1431 | notit->meta.stream_class); |
1432 | if (!event_header_type) { | |
835b2d10 | 1433 | notit->state = STATE_AFTER_STREAM_EVENT_HEADER; |
e98a2d6e PP |
1434 | goto end; |
1435 | } | |
1436 | ||
a6918753 PP |
1437 | BT_ASSERT(!notit->event_header_field); |
1438 | notit->event_header_field = bt_stream_class_create_event_header_field( | |
1439 | notit->meta.stream_class); | |
1440 | if (!notit->event_header_field) { | |
1441 | BT_LOGE_STR("Cannot create event header field wrapper from trace."); | |
1442 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1443 | goto end; | |
1444 | } | |
1445 | ||
1446 | notit->dscopes.stream_event_header = | |
1447 | bt_event_header_field_borrow_field(notit->event_header_field); | |
1448 | BT_ASSERT(notit->dscopes.stream_event_header); | |
fdf0e7a0 PP |
1449 | BT_LOGV("Decoding event header field: " |
1450 | "notit-addr=%p, stream-class-addr=%p, " | |
1451 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1452 | "ft-addr=%p", | |
1453 | notit, notit->meta.stream_class, | |
839d52a5 PP |
1454 | bt_stream_class_get_name(notit->meta.stream_class), |
1455 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 | 1456 | event_header_type); |
e98a2d6e PP |
1457 | status = read_dscope_begin_state(notit, event_header_type, |
1458 | STATE_AFTER_STREAM_EVENT_HEADER, | |
1459 | STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE, | |
a6918753 | 1460 | notit->dscopes.stream_event_header); |
fdf0e7a0 PP |
1461 | if (status < 0) { |
1462 | BT_LOGW("Cannot decode event header field: " | |
1463 | "notit-addr=%p, stream-class-addr=%p, " | |
1464 | "stream-class-name=\"%s\", " | |
1465 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1466 | notit, notit->meta.stream_class, | |
839d52a5 PP |
1467 | bt_stream_class_get_name(notit->meta.stream_class), |
1468 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 PP |
1469 | event_header_type); |
1470 | } | |
e98a2d6e | 1471 | |
b8418c69 | 1472 | end: |
e98a2d6e PP |
1473 | return status; |
1474 | } | |
1475 | ||
1476 | static | |
839d52a5 PP |
1477 | enum bt_notif_iter_status read_event_header_continue_state( |
1478 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1479 | { |
1480 | return read_dscope_continue_state(notit, | |
1481 | STATE_AFTER_STREAM_EVENT_HEADER); | |
1482 | } | |
1483 | ||
1484 | static inline | |
839d52a5 | 1485 | enum bt_notif_iter_status set_current_event_class(struct bt_notif_iter *notit) |
e98a2d6e PP |
1486 | { |
1487 | /* | |
1488 | * The assert() calls in this function are okay because it is | |
1489 | * assumed here that all the metadata objects have been | |
1490 | * validated for CTF correctness before decoding actual streams. | |
1491 | */ | |
1492 | ||
839d52a5 PP |
1493 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1494 | struct bt_field_type *event_header_type; | |
1495 | struct bt_field_type *id_field_type = NULL; | |
1496 | struct bt_field_type *v_field_type = NULL; | |
e98a2d6e PP |
1497 | uint64_t event_id = -1ULL; |
1498 | int ret; | |
1499 | ||
b8418c69 | 1500 | event_header_type = bt_stream_class_borrow_event_header_field_type( |
e98a2d6e PP |
1501 | notit->meta.stream_class); |
1502 | if (!event_header_type) { | |
fdf0e7a0 PP |
1503 | /* |
1504 | * No event header, therefore no event class ID field, | |
1505 | * therefore only one event class. | |
1506 | */ | |
1507 | goto single_event_class; | |
e98a2d6e PP |
1508 | } |
1509 | ||
1510 | /* Is there any "id"/"v" field in the event header? */ | |
a6918753 | 1511 | BT_ASSERT(bt_field_type_is_structure(event_header_type)); |
b8418c69 | 1512 | id_field_type = bt_field_type_structure_borrow_field_type_by_name( |
e98a2d6e | 1513 | event_header_type, "id"); |
b8418c69 | 1514 | v_field_type = bt_field_type_structure_borrow_field_type_by_name( |
e98a2d6e | 1515 | event_header_type, "v"); |
8b45963b | 1516 | BT_ASSERT(notit->dscopes.stream_event_header); |
e98a2d6e PP |
1517 | if (v_field_type) { |
1518 | /* | |
1519 | * _ _____ _____ | |
1520 | * | | |_ _|_ _| __ __ _ | |
1521 | * | | | | | || '_ \ / _` | | |
1522 | * | |___| | | || | | | (_| | S P E C I A L | |
1523 | * |_____|_| |_||_| |_|\__, | C A S E ™ | |
1524 | * |___/ | |
1525 | */ | |
839d52a5 PP |
1526 | struct bt_field *v_field = NULL; |
1527 | struct bt_field *v_struct_field = NULL; | |
1528 | struct bt_field *v_struct_id_field = NULL; | |
e98a2d6e PP |
1529 | |
1530 | // TODO: optimalize! | |
a6918753 | 1531 | v_field = bt_field_structure_borrow_field_by_name( |
e98a2d6e | 1532 | notit->dscopes.stream_event_header, "v"); |
8b45963b | 1533 | BT_ASSERT(v_field); |
e98a2d6e PP |
1534 | |
1535 | v_struct_field = | |
a6918753 | 1536 | bt_field_variant_borrow_current_field(v_field); |
e98a2d6e PP |
1537 | if (!v_struct_field) { |
1538 | goto end_v_field_type; | |
1539 | } | |
1540 | ||
1541 | // TODO: optimalize! | |
a6918753 PP |
1542 | v_struct_id_field = bt_field_structure_borrow_field_by_name( |
1543 | v_struct_field, "id"); | |
e98a2d6e PP |
1544 | if (!v_struct_id_field) { |
1545 | goto end_v_field_type; | |
1546 | } | |
1547 | ||
839d52a5 | 1548 | if (bt_field_is_integer(v_struct_id_field)) { |
8deee039 | 1549 | ret = bt_field_integer_unsigned_get_value( |
fdf0e7a0 PP |
1550 | v_struct_id_field, &event_id); |
1551 | if (ret) { | |
1552 | BT_LOGV("Cannot get value of unsigned integer field (`id`): continuing: " | |
1553 | "notit=%p, field-addr=%p", | |
1554 | notit, v_struct_id_field); | |
1555 | event_id = -1ULL; | |
1556 | } | |
e98a2d6e | 1557 | } |
e98a2d6e PP |
1558 | } |
1559 | ||
a6918753 | 1560 | end_v_field_type: |
e98a2d6e PP |
1561 | if (id_field_type && event_id == -1ULL) { |
1562 | /* Check "id" field */ | |
839d52a5 | 1563 | struct bt_field *id_field = NULL; |
0b0bf682 | 1564 | int ret_get_value = 0; |
e98a2d6e PP |
1565 | |
1566 | // TODO: optimalize! | |
a6918753 | 1567 | id_field = bt_field_structure_borrow_field_by_name( |
e98a2d6e | 1568 | notit->dscopes.stream_event_header, "id"); |
fdf0e7a0 PP |
1569 | if (!id_field) { |
1570 | goto check_event_id; | |
1571 | } | |
e98a2d6e | 1572 | |
a6918753 PP |
1573 | ret_get_value = bt_field_integer_unsigned_get_value( |
1574 | id_field, &event_id); | |
8b45963b | 1575 | BT_ASSERT(ret_get_value == 0); |
e98a2d6e PP |
1576 | } |
1577 | ||
fdf0e7a0 | 1578 | check_event_id: |
e98a2d6e | 1579 | if (event_id == -1ULL) { |
fdf0e7a0 | 1580 | single_event_class: |
e98a2d6e | 1581 | /* Event ID not found: single event? */ |
8b45963b | 1582 | BT_ASSERT(bt_stream_class_get_event_class_count( |
e98a2d6e PP |
1583 | notit->meta.stream_class) == 1); |
1584 | event_id = 0; | |
1585 | } | |
1586 | ||
fdf0e7a0 PP |
1587 | BT_LOGV("Found event class ID to use: notit-addr=%p, " |
1588 | "stream-class-addr=%p, stream-class-name=\"%s\", " | |
1589 | "stream-class-id=%" PRId64 ", " | |
1590 | "event-class-id=%" PRIu64, | |
1591 | notit, notit->meta.stream_class, | |
839d52a5 PP |
1592 | bt_stream_class_get_name(notit->meta.stream_class), |
1593 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 | 1594 | event_id); |
b8418c69 | 1595 | notit->meta.event_class = bt_stream_class_borrow_event_class_by_id( |
e98a2d6e PP |
1596 | notit->meta.stream_class, event_id); |
1597 | if (!notit->meta.event_class) { | |
fdf0e7a0 PP |
1598 | BT_LOGW("No event class with ID of event class ID to use in stream class: " |
1599 | "notit-addr=%p, stream-class-addr=%p, " | |
1600 | "stream-class-name=\"%s\", " | |
1601 | "stream-class-id=%" PRId64 ", " | |
1602 | "event-class-id=%" PRIu64, | |
1603 | notit, notit->meta.stream_class, | |
839d52a5 PP |
1604 | bt_stream_class_get_name(notit->meta.stream_class), |
1605 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 | 1606 | event_id); |
839d52a5 | 1607 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
1608 | goto end; |
1609 | } | |
1610 | ||
fdf0e7a0 PP |
1611 | BT_LOGV("Set current event class: " |
1612 | "notit-addr=%p, event-class-addr=%p, " | |
1613 | "event-class-name=\"%s\", event-class-id=%" PRId64, | |
1614 | notit, notit->meta.event_class, | |
839d52a5 PP |
1615 | bt_event_class_get_name(notit->meta.event_class), |
1616 | bt_event_class_get_id(notit->meta.event_class)); | |
fdf0e7a0 | 1617 | |
e98a2d6e | 1618 | end: |
e98a2d6e PP |
1619 | return status; |
1620 | } | |
1621 | ||
a6918753 PP |
1622 | static inline |
1623 | enum bt_notif_iter_status set_current_event_notification( | |
1624 | struct bt_notif_iter *notit) | |
1625 | { | |
1626 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; | |
1627 | struct bt_notification *notif = NULL; | |
1628 | ||
1629 | BT_ASSERT(notit->meta.event_class); | |
1630 | BT_ASSERT(notit->packet); | |
1631 | BT_LOGV("Creating event notification from event class and packet: " | |
1632 | "notit-addr=%p, ec-addr=%p, ec-name=\"%s\", packet-addr=%p", | |
1633 | notit, notit->meta.event_class, | |
1634 | bt_event_class_get_name(notit->meta.event_class), | |
1635 | notit->packet); | |
03e18d5d PP |
1636 | BT_ASSERT(notit->notif_iter); |
1637 | notif = bt_notification_event_create(notit->notif_iter, | |
8fc063a2 | 1638 | notit->meta.event_class, notit->packet); |
a6918753 PP |
1639 | if (!notif) { |
1640 | BT_LOGE("Cannot create event notification: " | |
1641 | "notit-addr=%p, ec-addr=%p, ec-name=\"%s\", " | |
1642 | "packet-addr=%p", | |
1643 | notit, notit->meta.event_class, | |
1644 | bt_event_class_get_name(notit->meta.event_class), | |
1645 | notit->packet); | |
1646 | goto error; | |
1647 | } | |
1648 | ||
1649 | goto end; | |
1650 | ||
1651 | error: | |
1652 | BT_PUT(notif); | |
1653 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1654 | ||
1655 | end: | |
1656 | BT_MOVE(notit->event_notif, notif); | |
1657 | return status; | |
1658 | } | |
1659 | ||
e98a2d6e | 1660 | static |
839d52a5 PP |
1661 | enum bt_notif_iter_status after_event_header_state( |
1662 | struct bt_notif_iter *notit) | |
e98a2d6e | 1663 | { |
839d52a5 | 1664 | enum bt_notif_iter_status status; |
e98a2d6e | 1665 | |
e98a2d6e | 1666 | status = set_current_event_class(notit); |
839d52a5 | 1667 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
e98a2d6e PP |
1668 | goto end; |
1669 | } | |
1670 | ||
a6918753 PP |
1671 | status = set_current_event_notification(notit); |
1672 | if (status != BT_NOTIF_ITER_STATUS_OK) { | |
1673 | goto end; | |
1674 | } | |
1675 | ||
1676 | notit->event = bt_notification_event_borrow_event(notit->event_notif); | |
1677 | BT_ASSERT(notit->event); | |
1678 | ||
1679 | if (notit->event_header_field) { | |
1680 | int ret; | |
1681 | ||
1682 | BT_ASSERT(notit->event); | |
1683 | ret = bt_event_move_header(notit->event, | |
1684 | notit->event_header_field); | |
1685 | ||
1686 | if (ret) { | |
1687 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1688 | goto end; | |
1689 | } | |
1690 | ||
1691 | notit->event_header_field = NULL; | |
1692 | ||
1693 | /* | |
1694 | * At this point notit->dscopes.stream_event_header has | |
1695 | * the same value as the event header field within | |
1696 | * notit->event. | |
1697 | */ | |
1698 | BT_ASSERT(bt_event_borrow_header(notit->event) == | |
1699 | notit->dscopes.stream_event_header); | |
1700 | } | |
1701 | ||
e98a2d6e PP |
1702 | notit->state = STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN; |
1703 | ||
1704 | end: | |
1705 | return status; | |
1706 | } | |
1707 | ||
1708 | static | |
839d52a5 PP |
1709 | enum bt_notif_iter_status read_stream_event_context_begin_state( |
1710 | struct bt_notif_iter *notit) | |
e98a2d6e | 1711 | { |
839d52a5 PP |
1712 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1713 | struct bt_field_type *stream_event_context_type; | |
e98a2d6e | 1714 | |
8deee039 | 1715 | stream_event_context_type = |
b8418c69 | 1716 | bt_stream_class_borrow_event_context_field_type( |
8deee039 | 1717 | notit->meta.stream_class); |
e98a2d6e | 1718 | if (!stream_event_context_type) { |
835b2d10 | 1719 | notit->state = STATE_DSCOPE_EVENT_CONTEXT_BEGIN; |
e98a2d6e PP |
1720 | goto end; |
1721 | } | |
1722 | ||
a6918753 PP |
1723 | BT_ASSERT(!notit->dscopes.stream_event_context); |
1724 | notit->dscopes.stream_event_context = | |
1725 | bt_event_borrow_stream_event_context(notit->event); | |
1726 | BT_ASSERT(notit->dscopes.stream_event_context); | |
fdf0e7a0 PP |
1727 | BT_LOGV("Decoding stream event context field: " |
1728 | "notit-addr=%p, stream-class-addr=%p, " | |
1729 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1730 | "ft-addr=%p", | |
1731 | notit, notit->meta.stream_class, | |
839d52a5 PP |
1732 | bt_stream_class_get_name(notit->meta.stream_class), |
1733 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 | 1734 | stream_event_context_type); |
e98a2d6e PP |
1735 | status = read_dscope_begin_state(notit, stream_event_context_type, |
1736 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN, | |
1737 | STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE, | |
a6918753 | 1738 | notit->dscopes.stream_event_context); |
fdf0e7a0 PP |
1739 | if (status < 0) { |
1740 | BT_LOGW("Cannot decode stream event context field: " | |
1741 | "notit-addr=%p, stream-class-addr=%p, " | |
1742 | "stream-class-name=\"%s\", " | |
1743 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1744 | notit, notit->meta.stream_class, | |
839d52a5 PP |
1745 | bt_stream_class_get_name(notit->meta.stream_class), |
1746 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 PP |
1747 | stream_event_context_type); |
1748 | } | |
e98a2d6e PP |
1749 | |
1750 | end: | |
e98a2d6e PP |
1751 | return status; |
1752 | } | |
1753 | ||
1754 | static | |
839d52a5 PP |
1755 | enum bt_notif_iter_status read_stream_event_context_continue_state( |
1756 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1757 | { |
1758 | return read_dscope_continue_state(notit, | |
1759 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN); | |
1760 | } | |
1761 | ||
1762 | static | |
839d52a5 PP |
1763 | enum bt_notif_iter_status read_event_context_begin_state( |
1764 | struct bt_notif_iter *notit) | |
e98a2d6e | 1765 | { |
839d52a5 PP |
1766 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1767 | struct bt_field_type *event_context_type; | |
e98a2d6e | 1768 | |
b8418c69 | 1769 | event_context_type = bt_event_class_borrow_context_field_type( |
e98a2d6e PP |
1770 | notit->meta.event_class); |
1771 | if (!event_context_type) { | |
835b2d10 | 1772 | notit->state = STATE_DSCOPE_EVENT_PAYLOAD_BEGIN; |
e98a2d6e PP |
1773 | goto end; |
1774 | } | |
fdf0e7a0 | 1775 | |
a6918753 PP |
1776 | BT_ASSERT(!notit->dscopes.event_context); |
1777 | notit->dscopes.event_context = bt_event_borrow_context(notit->event); | |
1778 | BT_ASSERT(notit->dscopes.event_context); | |
fdf0e7a0 PP |
1779 | BT_LOGV("Decoding event context field: " |
1780 | "notit-addr=%p, event-class-addr=%p, " | |
1781 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
1782 | "ft-addr=%p", | |
1783 | notit, notit->meta.event_class, | |
839d52a5 PP |
1784 | bt_event_class_get_name(notit->meta.event_class), |
1785 | bt_event_class_get_id(notit->meta.event_class), | |
fdf0e7a0 | 1786 | event_context_type); |
e98a2d6e PP |
1787 | status = read_dscope_begin_state(notit, event_context_type, |
1788 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, | |
1789 | STATE_DSCOPE_EVENT_CONTEXT_CONTINUE, | |
a6918753 | 1790 | notit->dscopes.event_context); |
fdf0e7a0 PP |
1791 | if (status < 0) { |
1792 | BT_LOGW("Cannot decode event context field: " | |
1793 | "notit-addr=%p, event-class-addr=%p, " | |
1794 | "event-class-name=\"%s\", " | |
1795 | "event-class-id=%" PRId64 ", ft-addr=%p", | |
1796 | notit, notit->meta.event_class, | |
839d52a5 PP |
1797 | bt_event_class_get_name(notit->meta.event_class), |
1798 | bt_event_class_get_id(notit->meta.event_class), | |
fdf0e7a0 PP |
1799 | event_context_type); |
1800 | } | |
e98a2d6e PP |
1801 | |
1802 | end: | |
e98a2d6e PP |
1803 | return status; |
1804 | } | |
1805 | ||
1806 | static | |
839d52a5 PP |
1807 | enum bt_notif_iter_status read_event_context_continue_state( |
1808 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1809 | { |
1810 | return read_dscope_continue_state(notit, | |
1811 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN); | |
1812 | } | |
1813 | ||
1814 | static | |
839d52a5 PP |
1815 | enum bt_notif_iter_status read_event_payload_begin_state( |
1816 | struct bt_notif_iter *notit) | |
e98a2d6e | 1817 | { |
839d52a5 PP |
1818 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1819 | struct bt_field_type *event_payload_type; | |
e98a2d6e | 1820 | |
b8418c69 | 1821 | event_payload_type = bt_event_class_borrow_payload_field_type( |
e98a2d6e PP |
1822 | notit->meta.event_class); |
1823 | if (!event_payload_type) { | |
835b2d10 | 1824 | notit->state = STATE_EMIT_NOTIF_EVENT; |
e98a2d6e PP |
1825 | goto end; |
1826 | } | |
1827 | ||
a6918753 PP |
1828 | BT_ASSERT(!notit->dscopes.event_payload); |
1829 | notit->dscopes.event_payload = bt_event_borrow_payload(notit->event); | |
1830 | BT_ASSERT(notit->dscopes.event_payload); | |
fdf0e7a0 PP |
1831 | BT_LOGV("Decoding event payload field: " |
1832 | "notit-addr=%p, event-class-addr=%p, " | |
1833 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
1834 | "ft-addr=%p", | |
1835 | notit, notit->meta.event_class, | |
839d52a5 PP |
1836 | bt_event_class_get_name(notit->meta.event_class), |
1837 | bt_event_class_get_id(notit->meta.event_class), | |
fdf0e7a0 | 1838 | event_payload_type); |
e98a2d6e PP |
1839 | status = read_dscope_begin_state(notit, event_payload_type, |
1840 | STATE_EMIT_NOTIF_EVENT, | |
1841 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
a6918753 | 1842 | notit->dscopes.event_payload); |
fdf0e7a0 PP |
1843 | if (status < 0) { |
1844 | BT_LOGW("Cannot decode event payload field: " | |
1845 | "notit-addr=%p, event-class-addr=%p, " | |
1846 | "event-class-name=\"%s\", " | |
1847 | "event-class-id=%" PRId64 ", ft-addr=%p", | |
1848 | notit, notit->meta.event_class, | |
839d52a5 PP |
1849 | bt_event_class_get_name(notit->meta.event_class), |
1850 | bt_event_class_get_id(notit->meta.event_class), | |
fdf0e7a0 PP |
1851 | event_payload_type); |
1852 | } | |
e98a2d6e PP |
1853 | |
1854 | end: | |
e98a2d6e PP |
1855 | return status; |
1856 | } | |
1857 | ||
1858 | static | |
839d52a5 PP |
1859 | enum bt_notif_iter_status read_event_payload_continue_state( |
1860 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1861 | { |
1862 | return read_dscope_continue_state(notit, STATE_EMIT_NOTIF_EVENT); | |
1863 | } | |
1864 | ||
1865 | static | |
839d52a5 PP |
1866 | enum bt_notif_iter_status skip_packet_padding_state( |
1867 | struct bt_notif_iter *notit) | |
e98a2d6e | 1868 | { |
839d52a5 | 1869 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e PP |
1870 | size_t bits_to_skip; |
1871 | ||
8b45963b | 1872 | BT_ASSERT(notit->cur_packet_size > 0); |
e98a2d6e PP |
1873 | bits_to_skip = notit->cur_packet_size - packet_at(notit); |
1874 | if (bits_to_skip == 0) { | |
1875 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1876 | goto end; | |
1877 | } else { | |
1878 | size_t bits_to_consume; | |
fdf0e7a0 PP |
1879 | |
1880 | BT_LOGV("Trying to skip %zu bits of padding: notit-addr=%p, size=%zu", | |
1881 | bits_to_skip, notit, bits_to_skip); | |
e98a2d6e | 1882 | status = buf_ensure_available_bits(notit); |
839d52a5 | 1883 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
e98a2d6e PP |
1884 | goto end; |
1885 | } | |
1886 | ||
1887 | bits_to_consume = MIN(buf_available_bits(notit), bits_to_skip); | |
fdf0e7a0 PP |
1888 | BT_LOGV("Skipping %zu bits of padding: notit-addr=%p, size=%zu", |
1889 | bits_to_consume, notit, bits_to_consume); | |
e98a2d6e PP |
1890 | buf_consume_bits(notit, bits_to_consume); |
1891 | bits_to_skip = notit->cur_packet_size - packet_at(notit); | |
1892 | if (bits_to_skip == 0) { | |
1893 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1894 | goto end; | |
1895 | } | |
1896 | } | |
1897 | ||
1898 | end: | |
1899 | return status; | |
1900 | } | |
1901 | ||
1902 | static inline | |
839d52a5 | 1903 | enum bt_notif_iter_status handle_state(struct bt_notif_iter *notit) |
e98a2d6e | 1904 | { |
839d52a5 | 1905 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
fdf0e7a0 | 1906 | const enum state state = notit->state; |
e98a2d6e | 1907 | |
fdf0e7a0 PP |
1908 | BT_LOGV("Handling state: notit-addr=%p, state=%s", |
1909 | notit, state_string(state)); | |
e98a2d6e PP |
1910 | |
1911 | // TODO: optimalize! | |
fdf0e7a0 | 1912 | switch (state) { |
e98a2d6e PP |
1913 | case STATE_INIT: |
1914 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1915 | break; | |
1916 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
1917 | status = read_packet_header_begin_state(notit); | |
1918 | break; | |
1919 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
1920 | status = read_packet_header_continue_state(notit); | |
1921 | break; | |
1922 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
1923 | status = after_packet_header_state(notit); | |
1924 | break; | |
1925 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
1926 | status = read_packet_context_begin_state(notit); | |
1927 | break; | |
1928 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
1929 | status = read_packet_context_continue_state(notit); | |
1930 | break; | |
1931 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
1932 | status = after_packet_context_state(notit); | |
1933 | break; | |
6ff151ad PP |
1934 | case STATE_EMIT_NOTIF_NEW_STREAM: |
1935 | notit->state = STATE_EMIT_NOTIF_NEW_PACKET; | |
1936 | break; | |
e98a2d6e PP |
1937 | case STATE_EMIT_NOTIF_NEW_PACKET: |
1938 | notit->state = STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN; | |
1939 | break; | |
1940 | case STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN: | |
1941 | status = read_event_header_begin_state(notit); | |
1942 | break; | |
1943 | case STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE: | |
1944 | status = read_event_header_continue_state(notit); | |
1945 | break; | |
1946 | case STATE_AFTER_STREAM_EVENT_HEADER: | |
1947 | status = after_event_header_state(notit); | |
1948 | break; | |
1949 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN: | |
1950 | status = read_stream_event_context_begin_state(notit); | |
1951 | break; | |
1952 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE: | |
1953 | status = read_stream_event_context_continue_state(notit); | |
1954 | break; | |
1955 | case STATE_DSCOPE_EVENT_CONTEXT_BEGIN: | |
1956 | status = read_event_context_begin_state(notit); | |
1957 | break; | |
1958 | case STATE_DSCOPE_EVENT_CONTEXT_CONTINUE: | |
1959 | status = read_event_context_continue_state(notit); | |
1960 | break; | |
1961 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
1962 | status = read_event_payload_begin_state(notit); | |
1963 | break; | |
1964 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
1965 | status = read_event_payload_continue_state(notit); | |
1966 | break; | |
1967 | case STATE_EMIT_NOTIF_EVENT: | |
1968 | notit->state = STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN; | |
1969 | break; | |
1970 | case STATE_SKIP_PACKET_PADDING: | |
1971 | status = skip_packet_padding_state(notit); | |
1972 | break; | |
1973 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
1974 | notit->state = STATE_SKIP_PACKET_PADDING; | |
1975 | break; | |
fdf0e7a0 PP |
1976 | default: |
1977 | BT_LOGD("Unknown CTF plugin notification iterator state: " | |
1978 | "notit-addr=%p, state=%d", notit, notit->state); | |
1979 | abort(); | |
e98a2d6e PP |
1980 | } |
1981 | ||
fdf0e7a0 PP |
1982 | BT_LOGV("Handled state: notit-addr=%p, status=%s, " |
1983 | "prev-state=%s, cur-state=%s", | |
839d52a5 | 1984 | notit, bt_notif_iter_status_string(status), |
fdf0e7a0 | 1985 | state_string(state), state_string(notit->state)); |
e98a2d6e PP |
1986 | return status; |
1987 | } | |
1988 | ||
2cf1d51e JG |
1989 | /** |
1990 | * Resets the internal state of a CTF notification iterator. | |
2cf1d51e | 1991 | */ |
6ff151ad | 1992 | BT_HIDDEN |
839d52a5 | 1993 | void bt_notif_iter_reset(struct bt_notif_iter *notit) |
e98a2d6e | 1994 | { |
8b45963b | 1995 | BT_ASSERT(notit); |
fdf0e7a0 | 1996 | BT_LOGD("Resetting notification iterator: addr=%p", notit); |
e98a2d6e | 1997 | stack_clear(notit->stack); |
b8418c69 PP |
1998 | notit->meta.stream_class = NULL; |
1999 | notit->meta.event_class = NULL; | |
e98a2d6e | 2000 | BT_PUT(notit->packet); |
e5815ba2 PP |
2001 | notit->prev_packet_avail = BT_PACKET_PREVIOUS_PACKET_AVAILABILITY_NONE; |
2002 | BT_PUT(notit->prev_packet); | |
5184a1d6 | 2003 | BT_PUT(notit->stream); |
a6918753 PP |
2004 | BT_PUT(notit->event_notif); |
2005 | release_all_dscopes(notit); | |
2006 | notit->cur_dscope_field = NULL; | |
2007 | ||
2008 | if (notit->packet_header_field) { | |
2009 | bt_packet_header_field_release(notit->packet_header_field); | |
2010 | notit->packet_header_field = NULL; | |
2011 | } | |
2012 | ||
2013 | if (notit->packet_context_field) { | |
2014 | bt_packet_context_field_release(notit->packet_context_field); | |
2015 | notit->packet_context_field = NULL; | |
2016 | } | |
2017 | ||
2018 | if (notit->event_header_field) { | |
2019 | bt_event_header_field_release(notit->event_header_field); | |
2020 | notit->event_header_field = NULL; | |
2021 | } | |
2022 | ||
e98a2d6e PP |
2023 | notit->buf.addr = NULL; |
2024 | notit->buf.sz = 0; | |
2025 | notit->buf.at = 0; | |
bb8744a7 | 2026 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
2027 | notit->buf.packet_offset = 0; |
2028 | notit->state = STATE_INIT; | |
2029 | notit->cur_content_size = -1; | |
2030 | notit->cur_packet_size = -1; | |
bb230c9b | 2031 | notit->cur_packet_offset = -1; |
6ff151ad | 2032 | notit->stream_begin_emitted = false; |
a6918753 | 2033 | notit->cur_timestamp_end = NULL; |
e98a2d6e PP |
2034 | } |
2035 | ||
2cf1d51e | 2036 | static |
839d52a5 | 2037 | int bt_notif_iter_switch_packet(struct bt_notif_iter *notit) |
2cf1d51e JG |
2038 | { |
2039 | int ret = 0; | |
2040 | ||
c937c615 PP |
2041 | /* |
2042 | * We don't put the stream class here because we need to make | |
2043 | * sure that all the packets processed by the same notification | |
2044 | * iterator refer to the same stream class (the first one). | |
2045 | */ | |
8b45963b | 2046 | BT_ASSERT(notit); |
a6918753 | 2047 | |
bb230c9b JG |
2048 | if (notit->cur_packet_size != -1) { |
2049 | notit->cur_packet_offset += notit->cur_packet_size; | |
2050 | } | |
a6918753 | 2051 | |
bb230c9b JG |
2052 | BT_LOGV("Switching packet: notit-addr=%p, cur=%zu, " |
2053 | "packet-offset=%" PRId64, notit, notit->buf.at, | |
2054 | notit->cur_packet_offset); | |
2cf1d51e | 2055 | stack_clear(notit->stack); |
b8418c69 | 2056 | notit->meta.event_class = NULL; |
2cf1d51e | 2057 | BT_PUT(notit->packet); |
a6918753 PP |
2058 | BT_PUT(notit->event_notif); |
2059 | notit->cur_timestamp_end = NULL; | |
2060 | release_all_dscopes(notit); | |
2061 | notit->cur_dscope_field = NULL; | |
2cf1d51e JG |
2062 | |
2063 | /* | |
2064 | * Adjust current buffer so that addr points to the beginning of the new | |
2065 | * packet. | |
2066 | */ | |
2067 | if (notit->buf.addr) { | |
2068 | size_t consumed_bytes = (size_t) (notit->buf.at / CHAR_BIT); | |
2069 | ||
2070 | /* Packets are assumed to start on a byte frontier. */ | |
2071 | if (notit->buf.at % CHAR_BIT) { | |
fdf0e7a0 PP |
2072 | BT_LOGW("Cannot switch packet: current position is not a multiple of 8: " |
2073 | "notit-addr=%p, cur=%zu", notit, notit->buf.at); | |
2cf1d51e JG |
2074 | ret = -1; |
2075 | goto end; | |
2076 | } | |
2077 | ||
2078 | notit->buf.addr += consumed_bytes; | |
2079 | notit->buf.sz -= consumed_bytes; | |
2080 | notit->buf.at = 0; | |
2081 | notit->buf.packet_offset = 0; | |
fdf0e7a0 PP |
2082 | BT_LOGV("Adjusted buffer: addr=%p, size=%zu", |
2083 | notit->buf.addr, notit->buf.sz); | |
2cf1d51e JG |
2084 | } |
2085 | ||
2086 | notit->cur_content_size = -1; | |
2087 | notit->cur_packet_size = -1; | |
5f870343 | 2088 | notit->cur_sc_field_path_cache = NULL; |
fdf0e7a0 | 2089 | |
2cf1d51e JG |
2090 | end: |
2091 | return ret; | |
2092 | } | |
2093 | ||
e98a2d6e | 2094 | static |
a6918753 | 2095 | struct bt_field *borrow_next_field(struct bt_notif_iter *notit) |
e98a2d6e | 2096 | { |
839d52a5 PP |
2097 | struct bt_field *next_field = NULL; |
2098 | struct bt_field *base_field; | |
2099 | struct bt_field_type *base_type; | |
e98a2d6e PP |
2100 | size_t index; |
2101 | ||
8b45963b | 2102 | BT_ASSERT(!stack_empty(notit->stack)); |
e98a2d6e PP |
2103 | index = stack_top(notit->stack)->index; |
2104 | base_field = stack_top(notit->stack)->base; | |
8b45963b | 2105 | BT_ASSERT(base_field); |
b8418c69 | 2106 | base_type = bt_field_borrow_type(base_field); |
8b45963b | 2107 | BT_ASSERT(base_type); |
e98a2d6e | 2108 | |
839d52a5 PP |
2109 | switch (bt_field_type_get_type_id(base_type)) { |
2110 | case BT_FIELD_TYPE_ID_STRUCT: | |
6ff151ad | 2111 | { |
a6918753 | 2112 | next_field = bt_field_structure_borrow_field_by_index( |
e98a2d6e PP |
2113 | base_field, index); |
2114 | break; | |
6ff151ad | 2115 | } |
839d52a5 | 2116 | case BT_FIELD_TYPE_ID_ARRAY: |
a6918753 | 2117 | next_field = bt_field_array_borrow_field(base_field, index); |
e98a2d6e | 2118 | break; |
839d52a5 | 2119 | case BT_FIELD_TYPE_ID_SEQUENCE: |
a6918753 | 2120 | next_field = bt_field_sequence_borrow_field(base_field, index); |
e98a2d6e | 2121 | break; |
839d52a5 | 2122 | case BT_FIELD_TYPE_ID_VARIANT: |
a6918753 | 2123 | next_field = bt_field_variant_borrow_current_field(base_field); |
e98a2d6e PP |
2124 | break; |
2125 | default: | |
fdf0e7a0 PP |
2126 | BT_LOGF("Unknown base field type ID: " |
2127 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
2128 | notit, base_type, | |
8deee039 | 2129 | bt_common_field_type_id_string( |
839d52a5 | 2130 | bt_field_type_get_type_id(base_type))); |
0fbb9a9f | 2131 | abort(); |
e98a2d6e PP |
2132 | } |
2133 | ||
e98a2d6e PP |
2134 | return next_field; |
2135 | } | |
2136 | ||
c44c3e70 | 2137 | static |
a6918753 PP |
2138 | void update_clock_state(uint64_t *state, struct bt_field *value_field, |
2139 | struct bt_field_type *value_type) | |
c44c3e70 | 2140 | { |
c44c3e70 JG |
2141 | uint64_t requested_new_value; |
2142 | uint64_t requested_new_value_mask; | |
2143 | uint64_t cur_value_masked; | |
2144 | int requested_new_value_size; | |
2145 | int ret; | |
2146 | ||
8b45963b PP |
2147 | BT_ASSERT(value_type); |
2148 | BT_ASSERT(bt_field_type_is_integer(value_type)); | |
c44c3e70 | 2149 | requested_new_value_size = |
839d52a5 | 2150 | bt_field_type_integer_get_size(value_type); |
8b45963b | 2151 | BT_ASSERT(requested_new_value_size > 0); |
8deee039 | 2152 | ret = bt_field_integer_unsigned_get_value(value_field, |
c44c3e70 | 2153 | &requested_new_value); |
8b45963b | 2154 | BT_ASSERT(!ret); |
c44c3e70 JG |
2155 | |
2156 | /* | |
2157 | * Special case for a 64-bit new value, which is the limit | |
2158 | * of a clock value as of this version: overwrite the | |
2159 | * current value directly. | |
2160 | */ | |
2161 | if (requested_new_value_size == 64) { | |
2162 | *state = requested_new_value; | |
2163 | goto end; | |
2164 | } | |
2165 | ||
2166 | requested_new_value_mask = (1ULL << requested_new_value_size) - 1; | |
2167 | cur_value_masked = *state & requested_new_value_mask; | |
2168 | ||
2169 | if (requested_new_value < cur_value_masked) { | |
2170 | /* | |
2171 | * It looks like a wrap happened on the number of bits | |
2172 | * of the requested new value. Assume that the clock | |
2173 | * value wrapped only one time. | |
2174 | */ | |
2175 | *state += requested_new_value_mask + 1; | |
2176 | } | |
2177 | ||
2178 | /* Clear the low bits of the current clock value. */ | |
2179 | *state &= ~requested_new_value_mask; | |
2180 | ||
2181 | /* Set the low bits of the current clock value. */ | |
2182 | *state |= requested_new_value; | |
b8418c69 | 2183 | |
c44c3e70 | 2184 | end: |
fdf0e7a0 PP |
2185 | BT_LOGV("Updated clock's value from integer field's value: " |
2186 | "value=%" PRIu64, *state); | |
c44c3e70 JG |
2187 | } |
2188 | ||
2189 | static | |
839d52a5 PP |
2190 | enum bt_btr_status update_clock(struct bt_notif_iter *notit, |
2191 | struct bt_field *int_field) | |
c44c3e70 | 2192 | { |
ac0c6bdd | 2193 | gboolean clock_class_found; |
501a8569 | 2194 | uint64_t *clock_state = NULL; |
839d52a5 PP |
2195 | struct bt_field_type *int_field_type = NULL; |
2196 | enum bt_btr_status ret = BT_BTR_STATUS_OK; | |
2197 | struct bt_clock_class *clock_class = NULL; | |
c44c3e70 | 2198 | |
b8418c69 | 2199 | int_field_type = bt_field_borrow_type(int_field); |
8b45963b | 2200 | BT_ASSERT(int_field_type); |
a6918753 PP |
2201 | |
2202 | if (bt_field_type_is_enumeration(int_field_type)) { | |
2203 | int_field_type = | |
2204 | bt_field_type_enumeration_borrow_container_field_type( | |
2205 | int_field_type); | |
2206 | } | |
2207 | ||
b8418c69 | 2208 | clock_class = bt_field_type_integer_borrow_mapped_clock_class( |
f45bfe88 | 2209 | int_field_type); |
ac0c6bdd | 2210 | if (likely(!clock_class)) { |
f45bfe88 | 2211 | goto end; |
c44c3e70 JG |
2212 | } |
2213 | ||
ac0c6bdd | 2214 | clock_class_found = g_hash_table_lookup_extended(notit->clock_states, |
fdf0e7a0 | 2215 | clock_class, NULL, (gpointer) &clock_state); |
501a8569 | 2216 | if (!clock_class_found) { |
c44c3e70 JG |
2217 | clock_state = g_new0(uint64_t, 1); |
2218 | if (!clock_state) { | |
fdf0e7a0 | 2219 | BT_LOGE_STR("Failed to allocate a uint64_t."); |
839d52a5 | 2220 | ret = BT_BTR_STATUS_ENOMEM; |
c44c3e70 JG |
2221 | goto end; |
2222 | } | |
fdf0e7a0 | 2223 | |
b8418c69 | 2224 | g_hash_table_insert(notit->clock_states, clock_class, |
fdf0e7a0 | 2225 | clock_state); |
c44c3e70 JG |
2226 | } |
2227 | ||
2228 | /* Update the clock's state. */ | |
fdf0e7a0 PP |
2229 | BT_LOGV("Updating notification iterator's clock's value from integer field: " |
2230 | "notit-addr=%p, clock-class-addr=%p, " | |
2231 | "clock-class-name=\"%s\", value=%" PRIu64, | |
2232 | notit, clock_class, | |
839d52a5 | 2233 | bt_clock_class_get_name(clock_class), *clock_state); |
a6918753 | 2234 | update_clock_state(clock_state, int_field, int_field_type); |
b8418c69 | 2235 | |
c44c3e70 | 2236 | end: |
c44c3e70 JG |
2237 | return ret; |
2238 | } | |
2239 | ||
e98a2d6e | 2240 | static |
839d52a5 PP |
2241 | enum bt_btr_status btr_unsigned_int_common(uint64_t value, |
2242 | struct bt_field_type *type, void *data, | |
a6918753 | 2243 | struct bt_field **out_field) |
839d52a5 PP |
2244 | { |
2245 | enum bt_btr_status status = BT_BTR_STATUS_OK; | |
2246 | struct bt_field *field = NULL; | |
839d52a5 | 2247 | struct bt_notif_iter *notit = data; |
e98a2d6e PP |
2248 | int ret; |
2249 | ||
fdf0e7a0 PP |
2250 | BT_LOGV("Common unsigned integer function called from BTR: " |
2251 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2252 | "ft-id=%s, value=%" PRIu64, | |
2253 | notit, notit->btr, type, | |
8deee039 | 2254 | bt_common_field_type_id_string( |
839d52a5 | 2255 | bt_field_type_get_type_id(type)), |
fdf0e7a0 | 2256 | value); |
a6918753 | 2257 | field = borrow_next_field(notit); |
e98a2d6e | 2258 | if (!field) { |
a6918753 | 2259 | BT_LOGW("Cannot borrow next field: notit-addr=%p", notit); |
839d52a5 | 2260 | status = BT_BTR_STATUS_ERROR; |
a6918753 | 2261 | goto end; |
e98a2d6e PP |
2262 | } |
2263 | ||
a6918753 PP |
2264 | BT_ASSERT(bt_field_is_integer(field) || bt_field_is_enumeration(field)); |
2265 | ret = bt_field_integer_unsigned_set_value(field, value); | |
8b45963b | 2266 | BT_ASSERT(ret == 0); |
e98a2d6e | 2267 | stack_top(notit->stack)->index++; |
a6918753 | 2268 | *out_field = field; |
fdf0e7a0 | 2269 | |
a6918753 | 2270 | end: |
e98a2d6e PP |
2271 | return status; |
2272 | } | |
2273 | ||
5f870343 | 2274 | static |
839d52a5 PP |
2275 | enum bt_btr_status btr_timestamp_end_cb(void *value, |
2276 | struct bt_field_type *type, void *data) | |
5f870343 | 2277 | { |
839d52a5 PP |
2278 | enum bt_btr_status status; |
2279 | struct bt_field *field = NULL; | |
2280 | struct bt_notif_iter *notit = data; | |
a6918753 | 2281 | uint64_t uvalue = *((uint64_t *) value); |
5f870343 | 2282 | |
fdf0e7a0 PP |
2283 | BT_LOGV("`timestamp_end` unsigned integer function called from BTR: " |
2284 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2285 | "ft-id=%s", | |
2286 | notit, notit->btr, type, | |
8deee039 | 2287 | bt_common_field_type_id_string( |
839d52a5 | 2288 | bt_field_type_get_type_id(type))); |
5f870343 | 2289 | |
a6918753 PP |
2290 | status = btr_unsigned_int_common(uvalue, type, data, &field); |
2291 | ||
2292 | /* Set as the current packet's end timestamp field */ | |
2293 | notit->cur_timestamp_end = field; | |
5f870343 JG |
2294 | return status; |
2295 | } | |
2296 | ||
e98a2d6e | 2297 | static |
839d52a5 PP |
2298 | enum bt_btr_status btr_unsigned_int_cb(uint64_t value, |
2299 | struct bt_field_type *type, void *data) | |
5f870343 | 2300 | { |
839d52a5 PP |
2301 | struct bt_notif_iter *notit = data; |
2302 | enum bt_btr_status status = BT_BTR_STATUS_OK; | |
2303 | struct bt_field *field = NULL; | |
5f870343 JG |
2304 | struct field_cb_override *override; |
2305 | ||
fdf0e7a0 PP |
2306 | BT_LOGV("Unsigned integer function called from BTR: " |
2307 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2308 | "ft-id=%s, value=%" PRIu64, | |
2309 | notit, notit->btr, type, | |
8deee039 | 2310 | bt_common_field_type_id_string( |
839d52a5 | 2311 | bt_field_type_get_type_id(type)), |
fdf0e7a0 PP |
2312 | value); |
2313 | override = g_hash_table_lookup(notit->field_overrides, type); | |
5f870343 | 2314 | if (unlikely(override)) { |
fdf0e7a0 | 2315 | /* Override function logs errors */ |
5f870343 JG |
2316 | status = override->func(&value, type, override->data); |
2317 | goto end; | |
2318 | } | |
2319 | ||
2320 | status = btr_unsigned_int_common(value, type, data, &field); | |
839d52a5 | 2321 | if (status != BT_BTR_STATUS_OK) { |
fdf0e7a0 | 2322 | /* btr_unsigned_int_common() logs errors */ |
5f870343 JG |
2323 | goto end; |
2324 | } | |
2325 | ||
f45bfe88 | 2326 | status = update_clock(notit, field); |
a6918753 | 2327 | |
5f870343 JG |
2328 | end: |
2329 | return status; | |
2330 | } | |
2331 | ||
2332 | static | |
839d52a5 PP |
2333 | enum bt_btr_status btr_signed_int_cb(int64_t value, |
2334 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2335 | { |
839d52a5 PP |
2336 | enum bt_btr_status status = BT_BTR_STATUS_OK; |
2337 | struct bt_field *field = NULL; | |
839d52a5 | 2338 | struct bt_notif_iter *notit = data; |
e98a2d6e PP |
2339 | int ret; |
2340 | ||
fdf0e7a0 PP |
2341 | BT_LOGV("Signed integer function called from BTR: " |
2342 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2343 | "ft-id=%s, value=%" PRId64, | |
2344 | notit, notit->btr, type, | |
8deee039 | 2345 | bt_common_field_type_id_string( |
839d52a5 | 2346 | bt_field_type_get_type_id(type)), |
fdf0e7a0 | 2347 | value); |
a6918753 | 2348 | field = borrow_next_field(notit); |
e98a2d6e | 2349 | if (!field) { |
a6918753 | 2350 | BT_LOGW("Cannot borrow next field: notit-addr=%p", notit); |
839d52a5 | 2351 | status = BT_BTR_STATUS_ERROR; |
a6918753 | 2352 | goto end; |
e98a2d6e PP |
2353 | } |
2354 | ||
a6918753 PP |
2355 | BT_ASSERT(bt_field_is_integer(field) || bt_field_is_enumeration(field)); |
2356 | ret = bt_field_integer_signed_set_value(field, value); | |
2357 | BT_ASSERT(ret == 0); | |
e98a2d6e | 2358 | stack_top(notit->stack)->index++; |
fdf0e7a0 | 2359 | |
a6918753 | 2360 | end: |
e98a2d6e PP |
2361 | return status; |
2362 | } | |
2363 | ||
2364 | static | |
839d52a5 PP |
2365 | enum bt_btr_status btr_floating_point_cb(double value, |
2366 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2367 | { |
839d52a5 PP |
2368 | enum bt_btr_status status = BT_BTR_STATUS_OK; |
2369 | struct bt_field *field = NULL; | |
2370 | struct bt_notif_iter *notit = data; | |
e98a2d6e PP |
2371 | int ret; |
2372 | ||
fdf0e7a0 PP |
2373 | BT_LOGV("Floating point number function called from BTR: " |
2374 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2375 | "ft-id=%s, value=%f", | |
2376 | notit, notit->btr, type, | |
8deee039 | 2377 | bt_common_field_type_id_string( |
839d52a5 | 2378 | bt_field_type_get_type_id(type)), |
fdf0e7a0 | 2379 | value); |
a6918753 | 2380 | field = borrow_next_field(notit); |
e98a2d6e | 2381 | if (!field) { |
a6918753 | 2382 | BT_LOGW("Cannot borrow next field: notit-addr=%p", notit); |
839d52a5 | 2383 | status = BT_BTR_STATUS_ERROR; |
e98a2d6e PP |
2384 | goto end; |
2385 | } | |
2386 | ||
839d52a5 | 2387 | ret = bt_field_floating_point_set_value(field, value); |
8b45963b | 2388 | BT_ASSERT(!ret); |
e98a2d6e PP |
2389 | stack_top(notit->stack)->index++; |
2390 | ||
2391 | end: | |
e98a2d6e PP |
2392 | return status; |
2393 | } | |
2394 | ||
2395 | static | |
839d52a5 PP |
2396 | enum bt_btr_status btr_string_begin_cb( |
2397 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2398 | { |
839d52a5 PP |
2399 | enum bt_btr_status status = BT_BTR_STATUS_OK; |
2400 | struct bt_field *field = NULL; | |
2401 | struct bt_notif_iter *notit = data; | |
e98a2d6e PP |
2402 | int ret; |
2403 | ||
fdf0e7a0 PP |
2404 | BT_LOGV("String (beginning) function called from BTR: " |
2405 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2406 | "ft-id=%s", | |
2407 | notit, notit->btr, type, | |
8deee039 | 2408 | bt_common_field_type_id_string( |
839d52a5 | 2409 | bt_field_type_get_type_id(type))); |
a6918753 | 2410 | field = borrow_next_field(notit); |
e98a2d6e | 2411 | if (!field) { |
fdf0e7a0 | 2412 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
839d52a5 | 2413 | status = BT_BTR_STATUS_ERROR; |
e98a2d6e PP |
2414 | goto end; |
2415 | } | |
2416 | ||
a6918753 PP |
2417 | ret = bt_field_string_clear(field); |
2418 | BT_ASSERT(ret == 0); | |
2419 | ||
e98a2d6e PP |
2420 | /* |
2421 | * Push on stack. Not a compound type per se, but we know that only | |
2422 | * btr_string_cb() may be called between this call and a subsequent | |
2423 | * call to btr_string_end_cb(). | |
2424 | */ | |
2425 | ret = stack_push(notit->stack, field); | |
2426 | if (ret) { | |
fdf0e7a0 PP |
2427 | BT_LOGE("Cannot push string field on stack: " |
2428 | "notit-addr=%p, field-addr=%p", notit, field); | |
839d52a5 | 2429 | status = BT_BTR_STATUS_ERROR; |
e98a2d6e PP |
2430 | goto end; |
2431 | } | |
2432 | ||
2433 | end: | |
e98a2d6e PP |
2434 | return status; |
2435 | } | |
2436 | ||
2437 | static | |
839d52a5 PP |
2438 | enum bt_btr_status btr_string_cb(const char *value, |
2439 | size_t len, struct bt_field_type *type, void *data) | |
e98a2d6e | 2440 | { |
839d52a5 PP |
2441 | enum bt_btr_status status = BT_BTR_STATUS_OK; |
2442 | struct bt_field *field = NULL; | |
2443 | struct bt_notif_iter *notit = data; | |
e98a2d6e PP |
2444 | int ret; |
2445 | ||
fdf0e7a0 PP |
2446 | BT_LOGV("String (substring) function called from BTR: " |
2447 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2448 | "ft-id=%s, string-length=%zu", | |
2449 | notit, notit->btr, type, | |
8deee039 | 2450 | bt_common_field_type_id_string( |
839d52a5 | 2451 | bt_field_type_get_type_id(type)), |
fdf0e7a0 | 2452 | len); |
e98a2d6e | 2453 | field = stack_top(notit->stack)->base; |
8b45963b | 2454 | BT_ASSERT(field); |
e98a2d6e | 2455 | |
a6918753 | 2456 | /* Append current substring */ |
839d52a5 | 2457 | ret = bt_field_string_append_len(field, value, len); |
e98a2d6e | 2458 | if (ret) { |
fdf0e7a0 PP |
2459 | BT_LOGE("Cannot append substring to string field's value: " |
2460 | "notit-addr=%p, field-addr=%p, string-length=%zu, " | |
2461 | "ret=%d", notit, field, len, ret); | |
839d52a5 | 2462 | status = BT_BTR_STATUS_ERROR; |
e98a2d6e PP |
2463 | goto end; |
2464 | } | |
2465 | ||
2466 | end: | |
2467 | return status; | |
2468 | } | |
2469 | ||
2470 | static | |
839d52a5 PP |
2471 | enum bt_btr_status btr_string_end_cb( |
2472 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2473 | { |
839d52a5 | 2474 | struct bt_notif_iter *notit = data; |
e98a2d6e | 2475 | |
fdf0e7a0 PP |
2476 | BT_LOGV("String (end) function called from BTR: " |
2477 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2478 | "ft-id=%s", | |
2479 | notit, notit->btr, type, | |
8deee039 | 2480 | bt_common_field_type_id_string( |
839d52a5 | 2481 | bt_field_type_get_type_id(type))); |
fdf0e7a0 | 2482 | |
e98a2d6e PP |
2483 | /* Pop string field */ |
2484 | stack_pop(notit->stack); | |
2485 | ||
2486 | /* Go to next field */ | |
2487 | stack_top(notit->stack)->index++; | |
839d52a5 | 2488 | return BT_BTR_STATUS_OK; |
e98a2d6e PP |
2489 | } |
2490 | ||
839d52a5 PP |
2491 | enum bt_btr_status btr_compound_begin_cb( |
2492 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2493 | { |
839d52a5 PP |
2494 | enum bt_btr_status status = BT_BTR_STATUS_OK; |
2495 | struct bt_notif_iter *notit = data; | |
2496 | struct bt_field *field; | |
e98a2d6e PP |
2497 | int ret; |
2498 | ||
fdf0e7a0 PP |
2499 | BT_LOGV("Compound (beginning) function called from BTR: " |
2500 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2501 | "ft-id=%s", | |
2502 | notit, notit->btr, type, | |
8deee039 | 2503 | bt_common_field_type_id_string( |
839d52a5 | 2504 | bt_field_type_get_type_id(type))); |
fdf0e7a0 | 2505 | |
a6918753 | 2506 | /* Borrow field */ |
e98a2d6e | 2507 | if (stack_empty(notit->stack)) { |
a6918753 PP |
2508 | /* Root: already set by read_dscope_begin_state() */ |
2509 | field = notit->cur_dscope_field; | |
e98a2d6e | 2510 | } else { |
a6918753 | 2511 | field = borrow_next_field(notit); |
fdf0e7a0 | 2512 | if (!field) { |
a6918753 | 2513 | BT_LOGW("Cannot borrow next field: notit-addr=%p", notit); |
839d52a5 | 2514 | status = BT_BTR_STATUS_ERROR; |
fdf0e7a0 PP |
2515 | goto end; |
2516 | } | |
e98a2d6e PP |
2517 | } |
2518 | ||
2519 | /* Push field */ | |
8b45963b | 2520 | BT_ASSERT(field); |
e98a2d6e PP |
2521 | ret = stack_push(notit->stack, field); |
2522 | if (ret) { | |
fdf0e7a0 PP |
2523 | BT_LOGE("Cannot push compound field onto the stack: " |
2524 | "notit-addr=%p, ft-addr=%p, ft-id=%s, ret=%d", | |
2525 | notit, type, | |
8deee039 | 2526 | bt_common_field_type_id_string( |
839d52a5 | 2527 | bt_field_type_get_type_id(type)), |
fdf0e7a0 | 2528 | ret); |
839d52a5 | 2529 | status = BT_BTR_STATUS_ERROR; |
e98a2d6e PP |
2530 | goto end; |
2531 | } | |
2532 | ||
2533 | end: | |
e98a2d6e PP |
2534 | return status; |
2535 | } | |
2536 | ||
839d52a5 PP |
2537 | enum bt_btr_status btr_compound_end_cb( |
2538 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2539 | { |
839d52a5 | 2540 | struct bt_notif_iter *notit = data; |
e98a2d6e | 2541 | |
fdf0e7a0 PP |
2542 | BT_LOGV("Compound (end) function called from BTR: " |
2543 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2544 | "ft-id=%s", | |
2545 | notit, notit->btr, type, | |
8deee039 | 2546 | bt_common_field_type_id_string( |
839d52a5 | 2547 | bt_field_type_get_type_id(type))); |
8b45963b | 2548 | BT_ASSERT(!stack_empty(notit->stack)); |
e98a2d6e PP |
2549 | |
2550 | /* Pop stack */ | |
2551 | stack_pop(notit->stack); | |
2552 | ||
2553 | /* If the stack is not empty, increment the base's index */ | |
2554 | if (!stack_empty(notit->stack)) { | |
2555 | stack_top(notit->stack)->index++; | |
2556 | } | |
2557 | ||
839d52a5 | 2558 | return BT_BTR_STATUS_OK; |
e98a2d6e PP |
2559 | } |
2560 | ||
2561 | static | |
839d52a5 PP |
2562 | struct bt_field *resolve_field(struct bt_notif_iter *notit, |
2563 | struct bt_field_path *path) | |
e98a2d6e | 2564 | { |
839d52a5 | 2565 | struct bt_field *field = NULL; |
e98a2d6e PP |
2566 | unsigned int i; |
2567 | ||
fdf0e7a0 | 2568 | if (BT_LOG_ON_VERBOSE) { |
839d52a5 | 2569 | GString *gstr = bt_field_path_string(path); |
fdf0e7a0 PP |
2570 | |
2571 | BT_LOGV("Resolving field path: notit-addr=%p, field-path=\"%s\"", | |
2572 | notit, gstr ? gstr->str : NULL); | |
2573 | ||
2574 | if (gstr) { | |
2575 | g_string_free(gstr, TRUE); | |
2576 | } | |
2577 | } | |
2578 | ||
839d52a5 PP |
2579 | switch (bt_field_path_get_root_scope(path)) { |
2580 | case BT_SCOPE_TRACE_PACKET_HEADER: | |
e98a2d6e PP |
2581 | field = notit->dscopes.trace_packet_header; |
2582 | break; | |
839d52a5 | 2583 | case BT_SCOPE_STREAM_PACKET_CONTEXT: |
e98a2d6e PP |
2584 | field = notit->dscopes.stream_packet_context; |
2585 | break; | |
839d52a5 | 2586 | case BT_SCOPE_STREAM_EVENT_HEADER: |
e98a2d6e PP |
2587 | field = notit->dscopes.stream_event_header; |
2588 | break; | |
839d52a5 | 2589 | case BT_SCOPE_STREAM_EVENT_CONTEXT: |
e98a2d6e PP |
2590 | field = notit->dscopes.stream_event_context; |
2591 | break; | |
839d52a5 | 2592 | case BT_SCOPE_EVENT_CONTEXT: |
e98a2d6e PP |
2593 | field = notit->dscopes.event_context; |
2594 | break; | |
839d52a5 | 2595 | case BT_SCOPE_EVENT_FIELDS: |
e98a2d6e PP |
2596 | field = notit->dscopes.event_payload; |
2597 | break; | |
2598 | default: | |
fdf0e7a0 PP |
2599 | BT_LOGF("Cannot resolve field path: unknown scope: " |
2600 | "notit-addr=%p, root-scope=%s", | |
8deee039 | 2601 | notit, bt_common_scope_string( |
839d52a5 | 2602 | bt_field_path_get_root_scope(path))); |
fdf0e7a0 | 2603 | abort(); |
e98a2d6e PP |
2604 | } |
2605 | ||
2606 | if (!field) { | |
fdf0e7a0 PP |
2607 | BT_LOGW("Cannot resolve field path: root field not found: " |
2608 | "notit-addr=%p, root-scope=%s", | |
8deee039 | 2609 | notit, bt_common_scope_string( |
839d52a5 | 2610 | bt_field_path_get_root_scope(path))); |
e98a2d6e PP |
2611 | goto end; |
2612 | } | |
2613 | ||
839d52a5 PP |
2614 | for (i = 0; i < bt_field_path_get_index_count(path); ++i) { |
2615 | struct bt_field *next_field = NULL; | |
2616 | struct bt_field_type *field_type; | |
2617 | int index = bt_field_path_get_index(path, i); | |
e98a2d6e | 2618 | |
b8418c69 | 2619 | field_type = bt_field_borrow_type(field); |
8b45963b | 2620 | BT_ASSERT(field_type); |
e98a2d6e | 2621 | |
a6918753 PP |
2622 | if (bt_field_type_is_structure(field_type)) { |
2623 | next_field = bt_field_structure_borrow_field_by_index( | |
e98a2d6e | 2624 | field, index); |
a6918753 | 2625 | } else if (bt_field_type_is_variant(field_type)) { |
e98a2d6e | 2626 | next_field = |
a6918753 | 2627 | bt_field_variant_borrow_current_field(field); |
e98a2d6e PP |
2628 | } |
2629 | ||
a6918753 | 2630 | field = NULL; |
e98a2d6e PP |
2631 | |
2632 | if (!next_field) { | |
fdf0e7a0 PP |
2633 | BT_LOGW("Cannot find next field: " |
2634 | "notit-addr=%p, ft-addr=%p, ft-id=%s, index=%d", | |
2635 | notit, field_type, | |
8deee039 | 2636 | bt_common_field_type_id_string( |
839d52a5 | 2637 | bt_field_type_get_type_id(field_type)), |
fdf0e7a0 | 2638 | index); |
e98a2d6e PP |
2639 | goto end; |
2640 | } | |
2641 | ||
2642 | /* Move next field -> field */ | |
a6918753 | 2643 | field = next_field; |
e98a2d6e PP |
2644 | } |
2645 | ||
2646 | end: | |
2647 | return field; | |
2648 | } | |
2649 | ||
2650 | static | |
839d52a5 | 2651 | int64_t btr_get_sequence_length_cb(struct bt_field_type *type, void *data) |
e98a2d6e PP |
2652 | { |
2653 | int64_t ret = -1; | |
2654 | int iret; | |
839d52a5 PP |
2655 | struct bt_field *seq_field; |
2656 | struct bt_field_path *field_path; | |
2657 | struct bt_notif_iter *notit = data; | |
2658 | struct bt_field *length_field = NULL; | |
e98a2d6e PP |
2659 | uint64_t length; |
2660 | ||
b8418c69 | 2661 | field_path = bt_field_type_sequence_borrow_length_field_path(type); |
8b45963b | 2662 | BT_ASSERT(field_path); |
2cf1d51e JG |
2663 | length_field = resolve_field(notit, field_path); |
2664 | if (!length_field) { | |
fdf0e7a0 PP |
2665 | BT_LOGW("Cannot resolve sequence field type's length field path: " |
2666 | "notit-addr=%p, ft-addr=%p", | |
2667 | notit, type); | |
e98a2d6e PP |
2668 | goto end; |
2669 | } | |
2670 | ||
8deee039 | 2671 | iret = bt_field_integer_unsigned_get_value(length_field, &length); |
e98a2d6e | 2672 | if (iret) { |
fdf0e7a0 PP |
2673 | BT_LOGE("Cannot get value of sequence length field: " |
2674 | "notit-addr=%p, field-addr=%p", | |
2675 | notit, length_field); | |
e98a2d6e PP |
2676 | goto end; |
2677 | } | |
2678 | ||
fdf0e7a0 | 2679 | seq_field = stack_top(notit->stack)->base; |
a6918753 | 2680 | iret = bt_field_sequence_set_length(seq_field, length); |
2cf1d51e | 2681 | if (iret) { |
fdf0e7a0 PP |
2682 | BT_LOGE("Cannot set sequence field's length field: " |
2683 | "notit-addr=%p, seq-field-addr=%p, " | |
a6918753 PP |
2684 | "length=%" PRIu64, |
2685 | notit, seq_field, length); | |
2cf1d51e JG |
2686 | goto end; |
2687 | } | |
fdf0e7a0 | 2688 | |
e98a2d6e PP |
2689 | ret = (int64_t) length; |
2690 | ||
2691 | end: | |
e98a2d6e PP |
2692 | return ret; |
2693 | } | |
2694 | ||
2695 | static | |
4feda515 | 2696 | struct bt_field_type *btr_borrow_variant_field_type_cb( |
839d52a5 | 2697 | struct bt_field_type *type, void *data) |
e98a2d6e | 2698 | { |
a6918753 | 2699 | int ret; |
839d52a5 PP |
2700 | struct bt_field_path *path; |
2701 | struct bt_notif_iter *notit = data; | |
2702 | struct bt_field *var_field; | |
2703 | struct bt_field *tag_field = NULL; | |
a6918753 PP |
2704 | struct bt_field_type *tag_ft = NULL; |
2705 | struct bt_field_type *tag_int_ft = NULL; | |
839d52a5 PP |
2706 | struct bt_field *selected_field = NULL; |
2707 | struct bt_field_type *selected_field_type = NULL; | |
e98a2d6e | 2708 | |
b8418c69 | 2709 | path = bt_field_type_variant_borrow_tag_field_path(type); |
8b45963b | 2710 | BT_ASSERT(path); |
e98a2d6e PP |
2711 | tag_field = resolve_field(notit, path); |
2712 | if (!tag_field) { | |
fdf0e7a0 PP |
2713 | BT_LOGW("Cannot resolve variant field type's tag field path: " |
2714 | "notit-addr=%p, ft-addr=%p", | |
2715 | notit, type); | |
e98a2d6e PP |
2716 | goto end; |
2717 | } | |
2718 | ||
2719 | /* | |
2720 | * We found the enumeration tag field instance which should be | |
2721 | * able to select a current field for this variant. This | |
2722 | * callback function we're in is called _after_ | |
2723 | * compound_begin(), so the current stack top's base field is | |
a6918753 PP |
2724 | * the variant field in question. We set the variant field's tag |
2725 | * here and then get the current (selected) field thanks to this | |
2726 | * tag field's value. This current field will also provide us | |
2727 | * with its type. Then, this current field will remain the | |
2728 | * current selected one until the next callback function call | |
2729 | * which is used to fill it. | |
e98a2d6e | 2730 | */ |
fdf0e7a0 | 2731 | var_field = stack_top(notit->stack)->base; |
a6918753 PP |
2732 | tag_ft = bt_field_borrow_type(tag_field); |
2733 | tag_int_ft = bt_field_type_enumeration_borrow_container_field_type( | |
2734 | tag_ft); | |
2735 | ||
2736 | if (bt_field_type_integer_is_signed(tag_int_ft)) { | |
2737 | int64_t tag_value; | |
2738 | ||
2739 | ret = bt_field_integer_signed_get_value(tag_field, &tag_value); | |
2740 | BT_ASSERT(ret == 0); | |
2741 | ret = bt_field_variant_set_tag_signed(var_field, tag_value); | |
2742 | BT_ASSERT(ret == 0); | |
2743 | } else { | |
2744 | uint64_t tag_value; | |
2745 | ||
2746 | ret = bt_field_integer_unsigned_get_value(tag_field, | |
2747 | &tag_value); | |
2748 | BT_ASSERT(ret == 0); | |
2749 | ret = bt_field_variant_set_tag_unsigned(var_field, tag_value); | |
2750 | BT_ASSERT(ret == 0); | |
2751 | } | |
2752 | ||
2753 | selected_field = bt_field_variant_borrow_current_field(var_field); | |
e98a2d6e | 2754 | if (!selected_field) { |
a6918753 PP |
2755 | BT_LOGW("Cannot borrow variant field's current field: " |
2756 | "notit-addr=%p, var-field-addr=%p", | |
2757 | notit, var_field); | |
e98a2d6e PP |
2758 | goto end; |
2759 | } | |
2760 | ||
4feda515 | 2761 | selected_field_type = bt_field_borrow_type(selected_field); |
e98a2d6e PP |
2762 | |
2763 | end: | |
e98a2d6e PP |
2764 | return selected_field_type; |
2765 | } | |
2766 | ||
1556a1af | 2767 | static |
a6918753 | 2768 | int set_event_clocks(struct bt_notif_iter *notit) |
1556a1af JG |
2769 | { |
2770 | int ret; | |
2771 | GHashTableIter iter; | |
839d52a5 | 2772 | struct bt_clock_class *clock_class; |
1556a1af JG |
2773 | uint64_t *clock_state; |
2774 | ||
2775 | g_hash_table_iter_init(&iter, notit->clock_states); | |
2776 | ||
ac0c6bdd | 2777 | while (g_hash_table_iter_next(&iter, (gpointer) &clock_class, |
a6918753 | 2778 | (gpointer) &clock_state)) { |
8fc063a2 PP |
2779 | ret = bt_event_set_clock_value(notit->event, clock_class, |
2780 | *clock_state, BT_TRUE); | |
2781 | if (ret) { | |
2782 | BT_LOGE("Cannot set event's default clock value: " | |
fdf0e7a0 PP |
2783 | "notit-addr=%p, clock-class-addr=%p, " |
2784 | "clock-class-name=\"%s\"", | |
2785 | notit, clock_class, | |
839d52a5 | 2786 | bt_clock_class_get_name(clock_class)); |
1556a1af JG |
2787 | ret = -1; |
2788 | goto end; | |
2789 | } | |
5184a1d6 PP |
2790 | } |
2791 | ||
a6918753 | 2792 | ret = 0; |
8fc063a2 | 2793 | |
5184a1d6 | 2794 | end: |
5184a1d6 PP |
2795 | return ret; |
2796 | } | |
2797 | ||
6ff151ad PP |
2798 | static |
2799 | void notify_new_stream(struct bt_notif_iter *notit, | |
2800 | struct bt_notification **notification) | |
2801 | { | |
a6918753 | 2802 | enum bt_notif_iter_status status; |
6ff151ad | 2803 | struct bt_notification *ret = NULL; |
6ff151ad | 2804 | |
a6918753 PP |
2805 | status = set_current_stream(notit); |
2806 | if (status != BT_NOTIF_ITER_STATUS_OK) { | |
2807 | BT_PUT(ret); | |
6ff151ad PP |
2808 | goto end; |
2809 | } | |
2810 | ||
2811 | BT_ASSERT(notit->stream); | |
03e18d5d PP |
2812 | BT_ASSERT(notit->notif_iter); |
2813 | ret = bt_notification_stream_begin_create(notit->notif_iter, | |
2814 | notit->stream); | |
6ff151ad PP |
2815 | if (!ret) { |
2816 | BT_LOGE("Cannot create stream beginning notification: " | |
2817 | "notit-addr=%p, stream-addr=%p", | |
2818 | notit, notit->stream); | |
2819 | return; | |
2820 | } | |
2821 | ||
2822 | end: | |
2823 | *notification = ret; | |
2824 | } | |
2825 | ||
2826 | static | |
2827 | void notify_end_of_stream(struct bt_notif_iter *notit, | |
2828 | struct bt_notification **notification) | |
2829 | { | |
2830 | struct bt_notification *ret; | |
2831 | ||
2832 | if (!notit->stream) { | |
2833 | BT_LOGE("Cannot create stream for stream notification: " | |
2834 | "notit-addr=%p", notit); | |
2835 | return; | |
2836 | } | |
2837 | ||
03e18d5d PP |
2838 | BT_ASSERT(notit->notif_iter); |
2839 | ret = bt_notification_stream_end_create(notit->notif_iter, | |
2840 | notit->stream); | |
6ff151ad PP |
2841 | if (!ret) { |
2842 | BT_LOGE("Cannot create stream beginning notification: " | |
2843 | "notit-addr=%p, stream-addr=%p", | |
2844 | notit, notit->stream); | |
2845 | return; | |
2846 | } | |
2847 | *notification = ret; | |
2848 | } | |
2849 | ||
78586d8a | 2850 | static |
839d52a5 | 2851 | void notify_new_packet(struct bt_notif_iter *notit, |
78586d8a | 2852 | struct bt_notification **notification) |
e98a2d6e | 2853 | { |
a6918753 PP |
2854 | int ret; |
2855 | enum bt_notif_iter_status status; | |
2856 | struct bt_notification *notif = NULL; | |
e98a2d6e | 2857 | |
a6918753 PP |
2858 | status = set_current_packet(notit); |
2859 | if (status != BT_NOTIF_ITER_STATUS_OK) { | |
2860 | goto end; | |
e98a2d6e PP |
2861 | } |
2862 | ||
a6918753 PP |
2863 | BT_ASSERT(notit->packet); |
2864 | ||
2865 | if (notit->packet_header_field) { | |
2866 | ret = bt_packet_move_header(notit->packet, | |
2867 | notit->packet_header_field); | |
2868 | if (ret) { | |
2869 | goto end; | |
2870 | } | |
2871 | ||
2872 | notit->packet_header_field = NULL; | |
2873 | ||
2874 | /* | |
2875 | * At this point notit->dscopes.trace_packet_header has | |
2876 | * the same value as the packet header field within | |
2877 | * notit->packet. | |
2878 | */ | |
2879 | BT_ASSERT(bt_packet_borrow_header(notit->packet) == | |
2880 | notit->dscopes.trace_packet_header); | |
2881 | } | |
2882 | ||
2883 | if (notit->packet_context_field) { | |
2884 | ret = bt_packet_move_context(notit->packet, | |
2885 | notit->packet_context_field); | |
2886 | if (ret) { | |
2887 | goto end; | |
2888 | } | |
2889 | ||
2890 | notit->packet_context_field = NULL; | |
2891 | ||
2892 | /* | |
2893 | * At this point notit->dscopes.trace_packet_header has | |
2894 | * the same value as the packet header field within | |
2895 | * notit->packet. | |
2896 | */ | |
2897 | BT_ASSERT(bt_packet_borrow_context(notit->packet) == | |
2898 | notit->dscopes.stream_packet_context); | |
2899 | } | |
2900 | ||
03e18d5d PP |
2901 | BT_ASSERT(notit->notif_iter); |
2902 | notif = bt_notification_packet_begin_create(notit->notif_iter, | |
f7c3ac09 | 2903 | notit->packet); |
a6918753 | 2904 | if (!notif) { |
fdf0e7a0 PP |
2905 | BT_LOGE("Cannot create packet beginning notification: " |
2906 | "notit-addr=%p, packet-addr=%p", | |
2907 | notit, notit->packet); | |
8fc063a2 | 2908 | goto end; |
78586d8a | 2909 | } |
a6918753 | 2910 | |
a6918753 | 2911 | *notification = notif; |
8fc063a2 PP |
2912 | |
2913 | end: | |
2914 | return; | |
e98a2d6e PP |
2915 | } |
2916 | ||
78586d8a | 2917 | static |
839d52a5 | 2918 | void notify_end_of_packet(struct bt_notif_iter *notit, |
78586d8a | 2919 | struct bt_notification **notification) |
e98a2d6e | 2920 | { |
a6918753 | 2921 | struct bt_notification *notif; |
e98a2d6e | 2922 | |
e98a2d6e | 2923 | if (!notit->packet) { |
78586d8a | 2924 | return; |
e98a2d6e PP |
2925 | } |
2926 | ||
03e18d5d PP |
2927 | BT_ASSERT(notit->notif_iter); |
2928 | notif = bt_notification_packet_end_create(notit->notif_iter, | |
2929 | notit->packet); | |
a6918753 | 2930 | if (!notif) { |
fdf0e7a0 PP |
2931 | BT_LOGE("Cannot create packet end notification: " |
2932 | "notit-addr=%p, packet-addr=%p", | |
2933 | notit, notit->packet); | |
78586d8a | 2934 | return; |
e5815ba2 | 2935 | |
78586d8a | 2936 | } |
e98a2d6e | 2937 | |
e5815ba2 PP |
2938 | BT_MOVE(notit->prev_packet, notit->packet); |
2939 | notit->prev_packet_avail = | |
2940 | BT_PACKET_PREVIOUS_PACKET_AVAILABILITY_AVAILABLE; | |
a6918753 | 2941 | *notification = notif; |
e98a2d6e PP |
2942 | } |
2943 | ||
5f870343 | 2944 | static |
839d52a5 | 2945 | void init_trace_field_path_cache(struct bt_trace *trace, |
5f870343 JG |
2946 | struct trace_field_path_cache *trace_field_path_cache) |
2947 | { | |
2948 | int stream_id = -1; | |
2949 | int stream_instance_id = -1; | |
2950 | int i, count; | |
839d52a5 | 2951 | struct bt_field_type *packet_header = NULL; |
5f870343 | 2952 | |
b8418c69 | 2953 | packet_header = bt_trace_borrow_packet_header_field_type(trace); |
5f870343 JG |
2954 | if (!packet_header) { |
2955 | goto end; | |
2956 | } | |
2957 | ||
839d52a5 | 2958 | if (!bt_field_type_is_structure(packet_header)) { |
5f870343 JG |
2959 | goto end; |
2960 | } | |
2961 | ||
839d52a5 | 2962 | count = bt_field_type_structure_get_field_count(packet_header); |
8b45963b | 2963 | BT_ASSERT(count >= 0); |
5f870343 JG |
2964 | |
2965 | for (i = 0; (i < count && (stream_id == -1 || stream_instance_id == -1)); i++) { | |
2966 | int ret; | |
2967 | const char *field_name; | |
2968 | ||
b8418c69 PP |
2969 | ret = bt_field_type_structure_borrow_field_by_index( |
2970 | packet_header, &field_name, NULL, i); | |
5f870343 | 2971 | if (ret) { |
fdf0e7a0 PP |
2972 | BT_LOGE("Cannot get structure field's field: " |
2973 | "field-addr=%p, index=%d", | |
2974 | packet_header, i); | |
5f870343 JG |
2975 | goto end; |
2976 | } | |
2977 | ||
2978 | if (stream_id == -1 && !strcmp(field_name, "stream_id")) { | |
2979 | stream_id = i; | |
2980 | } else if (stream_instance_id == -1 && | |
2981 | !strcmp(field_name, "stream_instance_id")) { | |
2982 | stream_instance_id = i; | |
2983 | } | |
2984 | } | |
fdf0e7a0 | 2985 | |
5f870343 JG |
2986 | end: |
2987 | trace_field_path_cache->stream_id = stream_id; | |
2988 | trace_field_path_cache->stream_instance_id = stream_instance_id; | |
5f870343 JG |
2989 | } |
2990 | ||
c44c3e70 | 2991 | BT_HIDDEN |
839d52a5 | 2992 | struct bt_notif_iter *bt_notif_iter_create(struct bt_trace *trace, |
e98a2d6e | 2993 | size_t max_request_sz, |
839d52a5 | 2994 | struct bt_notif_iter_medium_ops medops, void *data) |
e98a2d6e | 2995 | { |
839d52a5 PP |
2996 | struct bt_notif_iter *notit = NULL; |
2997 | struct bt_btr_cbs cbs = { | |
e98a2d6e PP |
2998 | .types = { |
2999 | .signed_int = btr_signed_int_cb, | |
3000 | .unsigned_int = btr_unsigned_int_cb, | |
3001 | .floating_point = btr_floating_point_cb, | |
3002 | .string_begin = btr_string_begin_cb, | |
3003 | .string = btr_string_cb, | |
3004 | .string_end = btr_string_end_cb, | |
3005 | .compound_begin = btr_compound_begin_cb, | |
3006 | .compound_end = btr_compound_end_cb, | |
3007 | }, | |
3008 | .query = { | |
3009 | .get_sequence_length = btr_get_sequence_length_cb, | |
4feda515 | 3010 | .borrow_variant_field_type = btr_borrow_variant_field_type_cb, |
e98a2d6e PP |
3011 | }, |
3012 | }; | |
3013 | ||
8b45963b PP |
3014 | BT_ASSERT(trace); |
3015 | BT_ASSERT(medops.request_bytes); | |
a6918753 | 3016 | BT_ASSERT(medops.borrow_stream); |
fdf0e7a0 PP |
3017 | BT_LOGD("Creating CTF plugin notification iterator: " |
3018 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
3019 | "data=%p", | |
839d52a5 PP |
3020 | trace, bt_trace_get_name(trace), max_request_sz, data); |
3021 | notit = g_new0(struct bt_notif_iter, 1); | |
e98a2d6e | 3022 | if (!notit) { |
fdf0e7a0 | 3023 | BT_LOGE_STR("Failed to allocate one CTF plugin notification iterator."); |
e98a2d6e PP |
3024 | goto end; |
3025 | } | |
c44c3e70 | 3026 | notit->clock_states = g_hash_table_new_full(g_direct_hash, |
b8418c69 | 3027 | g_direct_equal, NULL, g_free); |
c44c3e70 | 3028 | if (!notit->clock_states) { |
fdf0e7a0 | 3029 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
c44c3e70 JG |
3030 | goto error; |
3031 | } | |
b8418c69 | 3032 | notit->meta.trace = trace; |
e98a2d6e PP |
3033 | notit->medium.medops = medops; |
3034 | notit->medium.max_request_sz = max_request_sz; | |
3035 | notit->medium.data = data; | |
e98a2d6e PP |
3036 | notit->stack = stack_new(notit); |
3037 | if (!notit->stack) { | |
fdf0e7a0 | 3038 | BT_LOGE_STR("Failed to create field stack."); |
c44c3e70 | 3039 | goto error; |
e98a2d6e PP |
3040 | } |
3041 | ||
839d52a5 | 3042 | notit->btr = bt_btr_create(cbs, notit); |
e98a2d6e | 3043 | if (!notit->btr) { |
fdf0e7a0 | 3044 | BT_LOGE_STR("Failed to create binary type reader (BTR)."); |
c44c3e70 | 3045 | goto error; |
e98a2d6e PP |
3046 | } |
3047 | ||
839d52a5 | 3048 | bt_notif_iter_reset(notit); |
5f870343 JG |
3049 | init_trace_field_path_cache(trace, ¬it->trace_field_path_cache); |
3050 | notit->sc_field_path_caches = g_hash_table_new_full(g_direct_hash, | |
b8418c69 | 3051 | g_direct_equal, NULL, g_free); |
5f870343 | 3052 | if (!notit->sc_field_path_caches) { |
fdf0e7a0 | 3053 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
5f870343 JG |
3054 | goto error; |
3055 | } | |
3056 | ||
3057 | notit->field_overrides = g_hash_table_new_full(g_direct_hash, | |
b8418c69 | 3058 | g_direct_equal, NULL, g_free); |
5f870343 | 3059 | if (!notit->field_overrides) { |
fdf0e7a0 | 3060 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
5f870343 JG |
3061 | goto error; |
3062 | } | |
3063 | ||
fdf0e7a0 PP |
3064 | BT_LOGD("Created CTF plugin notification iterator: " |
3065 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
3066 | "data=%p, notit-addr=%p", | |
839d52a5 | 3067 | trace, bt_trace_get_name(trace), max_request_sz, data, |
fdf0e7a0 | 3068 | notit); |
bb230c9b | 3069 | notit->cur_packet_offset = 0; |
fdf0e7a0 | 3070 | |
e98a2d6e PP |
3071 | end: |
3072 | return notit; | |
fdf0e7a0 | 3073 | |
c44c3e70 | 3074 | error: |
839d52a5 | 3075 | bt_notif_iter_destroy(notit); |
c44c3e70 JG |
3076 | notit = NULL; |
3077 | goto end; | |
e98a2d6e PP |
3078 | } |
3079 | ||
839d52a5 | 3080 | void bt_notif_iter_destroy(struct bt_notif_iter *notit) |
e98a2d6e | 3081 | { |
e98a2d6e | 3082 | BT_PUT(notit->packet); |
e5815ba2 | 3083 | BT_PUT(notit->prev_packet); |
5184a1d6 | 3084 | BT_PUT(notit->stream); |
a6918753 | 3085 | release_all_dscopes(notit); |
e98a2d6e | 3086 | |
fdf0e7a0 PP |
3087 | BT_LOGD("Destroying CTF plugin notification iterator: addr=%p", notit); |
3088 | ||
e98a2d6e | 3089 | if (notit->stack) { |
fdf0e7a0 | 3090 | BT_LOGD_STR("Destroying field stack."); |
e98a2d6e PP |
3091 | stack_destroy(notit->stack); |
3092 | } | |
3093 | ||
3094 | if (notit->btr) { | |
fdf0e7a0 | 3095 | BT_LOGD("Destroying BTR: btr-addr=%p", notit->btr); |
839d52a5 | 3096 | bt_btr_destroy(notit->btr); |
e98a2d6e PP |
3097 | } |
3098 | ||
c44c3e70 JG |
3099 | if (notit->clock_states) { |
3100 | g_hash_table_destroy(notit->clock_states); | |
3101 | } | |
5f870343 JG |
3102 | |
3103 | if (notit->sc_field_path_caches) { | |
3104 | g_hash_table_destroy(notit->sc_field_path_caches); | |
3105 | } | |
3106 | ||
3107 | if (notit->field_overrides) { | |
3108 | g_hash_table_destroy(notit->field_overrides); | |
3109 | } | |
fdf0e7a0 | 3110 | |
e98a2d6e PP |
3111 | g_free(notit); |
3112 | } | |
3113 | ||
839d52a5 PP |
3114 | enum bt_notif_iter_status bt_notif_iter_get_next_notification( |
3115 | struct bt_notif_iter *notit, | |
03e18d5d | 3116 | struct bt_private_connection_private_notification_iterator *notif_iter, |
78586d8a | 3117 | struct bt_notification **notification) |
e98a2d6e | 3118 | { |
a6918753 | 3119 | int ret; |
839d52a5 | 3120 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e | 3121 | |
8b45963b PP |
3122 | BT_ASSERT(notit); |
3123 | BT_ASSERT(notification); | |
e98a2d6e | 3124 | |
f7c3ac09 PP |
3125 | if (notit->state == STATE_DONE) { |
3126 | status = BT_NOTIF_ITER_STATUS_EOF; | |
3127 | goto end; | |
3128 | } | |
3129 | ||
03e18d5d | 3130 | notit->notif_iter = notif_iter; |
6ff151ad | 3131 | |
8fc063a2 | 3132 | BT_LOGV("Getting next notification: notit-addr=%p", notit); |
fdf0e7a0 | 3133 | |
e98a2d6e PP |
3134 | while (true) { |
3135 | status = handle_state(notit); | |
839d52a5 PP |
3136 | if (status == BT_NOTIF_ITER_STATUS_AGAIN) { |
3137 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_AGAIN."); | |
7cdc2bab MD |
3138 | goto end; |
3139 | } | |
a6918753 | 3140 | |
839d52a5 PP |
3141 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
3142 | if (status == BT_NOTIF_ITER_STATUS_EOF) { | |
6ff151ad PP |
3143 | enum state next_state = notit->state; |
3144 | ||
839d52a5 | 3145 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_EOF."); |
6ff151ad PP |
3146 | |
3147 | if (notit->packet) { | |
a6918753 PP |
3148 | notify_end_of_packet(notit, |
3149 | notification); | |
6ff151ad | 3150 | } else { |
a6918753 PP |
3151 | notify_end_of_stream(notit, |
3152 | notification); | |
6ff151ad PP |
3153 | next_state = STATE_DONE; |
3154 | } | |
3155 | ||
3156 | if (!*notification) { | |
3157 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
3158 | goto end; | |
3159 | } | |
3160 | ||
3161 | status = BT_NOTIF_ITER_STATUS_OK; | |
3162 | notit->state = next_state; | |
e98a2d6e | 3163 | } else { |
fdf0e7a0 PP |
3164 | BT_LOGW("Cannot handle state: " |
3165 | "notit-addr=%p, state=%s", | |
3166 | notit, state_string(notit->state)); | |
e98a2d6e | 3167 | } |
a6918753 | 3168 | |
e98a2d6e PP |
3169 | goto end; |
3170 | } | |
3171 | ||
3172 | switch (notit->state) { | |
6ff151ad PP |
3173 | case STATE_EMIT_NOTIF_NEW_STREAM: |
3174 | /* notify_new_stream() logs errors */ | |
3175 | notify_new_stream(notit, notification); | |
3176 | if (!*notification) { | |
3177 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
3178 | } | |
3179 | notit->stream_begin_emitted = true; | |
3180 | goto end; | |
e98a2d6e | 3181 | case STATE_EMIT_NOTIF_NEW_PACKET: |
fdf0e7a0 | 3182 | /* notify_new_packet() logs errors */ |
e98a2d6e PP |
3183 | notify_new_packet(notit, notification); |
3184 | if (!*notification) { | |
839d52a5 | 3185 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e | 3186 | } |
a6918753 | 3187 | |
e98a2d6e PP |
3188 | goto end; |
3189 | case STATE_EMIT_NOTIF_EVENT: | |
a6918753 PP |
3190 | BT_ASSERT(notit->event_notif); |
3191 | ret = set_event_clocks(notit); | |
3192 | if (ret) { | |
839d52a5 | 3193 | status = BT_NOTIF_ITER_STATUS_ERROR; |
a6918753 | 3194 | goto end; |
e98a2d6e | 3195 | } |
a6918753 | 3196 | |
3fd7b79d PP |
3197 | *notification = notit->event_notif; |
3198 | notit->event_notif = NULL; | |
e98a2d6e PP |
3199 | goto end; |
3200 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
5f870343 JG |
3201 | /* Update clock with timestamp_end field. */ |
3202 | if (notit->cur_timestamp_end) { | |
839d52a5 | 3203 | enum bt_btr_status btr_status; |
5f870343 | 3204 | |
f45bfe88 PP |
3205 | btr_status = update_clock(notit, |
3206 | notit->cur_timestamp_end); | |
839d52a5 | 3207 | if (btr_status != BT_BTR_STATUS_OK) { |
fdf0e7a0 PP |
3208 | BT_LOGW("Cannot update stream's clock value: " |
3209 | "notit-addr=%p", notit); | |
839d52a5 | 3210 | status = BT_NOTIF_ITER_STATUS_ERROR; |
5f870343 JG |
3211 | goto end; |
3212 | } | |
3213 | } | |
3214 | ||
fdf0e7a0 | 3215 | /* notify_end_of_packet() logs errors */ |
e98a2d6e PP |
3216 | notify_end_of_packet(notit, notification); |
3217 | if (!*notification) { | |
839d52a5 | 3218 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e | 3219 | } |
a6918753 | 3220 | |
e98a2d6e PP |
3221 | goto end; |
3222 | default: | |
3223 | /* Non-emitting state: continue */ | |
3224 | break; | |
3225 | } | |
3226 | } | |
3227 | ||
3228 | end: | |
3229 | return status; | |
3230 | } | |
87187cbf PP |
3231 | |
3232 | BT_HIDDEN | |
a6918753 | 3233 | enum bt_notif_iter_status bt_notif_iter_borrow_packet_header_context_fields( |
839d52a5 PP |
3234 | struct bt_notif_iter *notit, |
3235 | struct bt_field **packet_header_field, | |
3236 | struct bt_field **packet_context_field) | |
87187cbf | 3237 | { |
bb230c9b | 3238 | int ret; |
839d52a5 | 3239 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
87187cbf | 3240 | |
8b45963b | 3241 | BT_ASSERT(notit); |
87187cbf PP |
3242 | |
3243 | if (notit->state == STATE_EMIT_NOTIF_NEW_PACKET) { | |
3244 | /* We're already there */ | |
3245 | goto set_fields; | |
3246 | } | |
3247 | ||
3248 | while (true) { | |
3249 | status = handle_state(notit); | |
839d52a5 PP |
3250 | if (status == BT_NOTIF_ITER_STATUS_AGAIN) { |
3251 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_AGAIN."); | |
87187cbf PP |
3252 | goto end; |
3253 | } | |
839d52a5 PP |
3254 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
3255 | if (status == BT_NOTIF_ITER_STATUS_EOF) { | |
3256 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_EOF."); | |
87187cbf | 3257 | } else { |
fdf0e7a0 PP |
3258 | BT_LOGW("Cannot handle state: " |
3259 | "notit-addr=%p, state=%s", | |
3260 | notit, state_string(notit->state)); | |
87187cbf PP |
3261 | } |
3262 | goto end; | |
3263 | } | |
3264 | ||
3265 | switch (notit->state) { | |
3266 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
3267 | /* | |
3268 | * Packet header and context fields are | |
3269 | * potentially decoded (or they don't exist). | |
3270 | */ | |
3271 | goto set_fields; | |
3272 | case STATE_INIT: | |
6ff151ad | 3273 | case STATE_EMIT_NOTIF_NEW_STREAM: |
87187cbf PP |
3274 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: |
3275 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
3276 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
3277 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
3278 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
3279 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
3280 | /* Non-emitting state: continue */ | |
3281 | break; | |
3282 | default: | |
3283 | /* | |
3284 | * We should never get past the | |
3285 | * STATE_EMIT_NOTIF_NEW_PACKET state. | |
3286 | */ | |
fdf0e7a0 PP |
3287 | BT_LOGF("Unexpected state: notit-addr=%p, state=%s", |
3288 | notit, state_string(notit->state)); | |
0fbb9a9f | 3289 | abort(); |
87187cbf PP |
3290 | } |
3291 | } | |
3292 | ||
3293 | set_fields: | |
a6918753 PP |
3294 | ret = set_current_packet_content_sizes(notit); |
3295 | if (ret) { | |
3296 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
3297 | goto end; | |
3298 | } | |
3299 | ||
87187cbf | 3300 | if (packet_header_field) { |
a6918753 | 3301 | *packet_header_field = notit->dscopes.trace_packet_header; |
87187cbf PP |
3302 | } |
3303 | ||
3304 | if (packet_context_field) { | |
a6918753 | 3305 | *packet_context_field = notit->dscopes.stream_packet_context; |
87187cbf PP |
3306 | } |
3307 | ||
3308 | end: | |
3309 | return status; | |
3310 | } | |
55fa6491 PP |
3311 | |
3312 | BT_HIDDEN | |
839d52a5 | 3313 | void bt_notif_iter_set_medops_data(struct bt_notif_iter *notit, |
55fa6491 PP |
3314 | void *medops_data) |
3315 | { | |
8b45963b | 3316 | BT_ASSERT(notit); |
55fa6491 PP |
3317 | notit->medium.data = medops_data; |
3318 | } | |
bb230c9b JG |
3319 | |
3320 | BT_HIDDEN | |
839d52a5 PP |
3321 | enum bt_notif_iter_status bt_notif_iter_seek( |
3322 | struct bt_notif_iter *notit, off_t offset) | |
bb230c9b | 3323 | { |
839d52a5 PP |
3324 | enum bt_notif_iter_status ret = BT_NOTIF_ITER_STATUS_OK; |
3325 | enum bt_notif_iter_medium_status medium_status; | |
bb230c9b | 3326 | |
8b45963b | 3327 | BT_ASSERT(notit); |
bb230c9b JG |
3328 | if (offset < 0) { |
3329 | BT_LOGE("Cannot seek to negative offset: offset=%jd", offset); | |
839d52a5 | 3330 | ret = BT_NOTIF_ITER_STATUS_INVAL; |
bb230c9b JG |
3331 | goto end; |
3332 | } | |
3333 | ||
3334 | if (!notit->medium.medops.seek) { | |
839d52a5 | 3335 | ret = BT_NOTIF_ITER_STATUS_UNSUPPORTED; |
bb230c9b JG |
3336 | BT_LOGD("Aborting seek as the iterator's underlying media does not implement seek support."); |
3337 | goto end; | |
3338 | } | |
3339 | ||
3340 | medium_status = notit->medium.medops.seek( | |
839d52a5 | 3341 | BT_NOTIF_ITER_SEEK_WHENCE_SET, offset, |
bb230c9b | 3342 | notit->medium.data); |
839d52a5 PP |
3343 | if (medium_status != BT_NOTIF_ITER_MEDIUM_STATUS_OK) { |
3344 | if (medium_status == BT_NOTIF_ITER_MEDIUM_STATUS_EOF) { | |
3345 | ret = BT_NOTIF_ITER_STATUS_EOF; | |
bb230c9b | 3346 | } else { |
839d52a5 | 3347 | ret = BT_NOTIF_ITER_STATUS_ERROR; |
bb230c9b JG |
3348 | goto end; |
3349 | } | |
3350 | } | |
3351 | ||
839d52a5 | 3352 | bt_notif_iter_reset(notit); |
bb230c9b JG |
3353 | notit->cur_packet_offset = offset; |
3354 | end: | |
3355 | return ret; | |
3356 | } | |
3357 | ||
3358 | BT_HIDDEN | |
839d52a5 PP |
3359 | off_t bt_notif_iter_get_current_packet_offset( |
3360 | struct bt_notif_iter *notit) | |
bb230c9b | 3361 | { |
8b45963b | 3362 | BT_ASSERT(notit); |
bb230c9b JG |
3363 | return notit->cur_packet_offset; |
3364 | } | |
3365 | ||
3366 | BT_HIDDEN | |
839d52a5 PP |
3367 | off_t bt_notif_iter_get_current_packet_size( |
3368 | struct bt_notif_iter *notit) | |
bb230c9b | 3369 | { |
8b45963b | 3370 | BT_ASSERT(notit); |
bb230c9b JG |
3371 | return notit->cur_packet_size; |
3372 | } |