Commit | Line | Data |
---|---|---|
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> | |
f6ccaed9 | 34 | #include <babeltrace/assert-internal.h> |
e98a2d6e | 35 | #include <string.h> |
9d408fca | 36 | #include <babeltrace/babeltrace.h> |
3dca2276 | 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 | |
50842bdc | 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 | * | |
312c056a | 57 | * Field is borrowed. |
e98a2d6e | 58 | */ |
50842bdc | 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 { | |
67 | /* Entries (struct stack_entry *) (top is last element) */ | |
68 | GPtrArray *entries; | |
e98a2d6e PP |
69 | }; |
70 | ||
71 | /* State */ | |
72 | enum state { | |
73 | STATE_INIT, | |
74 | STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN, | |
75 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
76 | STATE_AFTER_TRACE_PACKET_HEADER, | |
77 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN, | |
78 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
79 | STATE_AFTER_STREAM_PACKET_CONTEXT, | |
f42867e2 | 80 | STATE_EMIT_NOTIF_NEW_STREAM, |
e98a2d6e PP |
81 | STATE_EMIT_NOTIF_NEW_PACKET, |
82 | STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN, | |
83 | STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE, | |
84 | STATE_AFTER_STREAM_EVENT_HEADER, | |
85 | STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN, | |
86 | STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE, | |
87 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN, | |
88 | STATE_DSCOPE_EVENT_CONTEXT_CONTINUE, | |
89 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, | |
90 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
91 | STATE_EMIT_NOTIF_EVENT, | |
92 | STATE_EMIT_NOTIF_END_OF_PACKET, | |
f42867e2 | 93 | STATE_DONE, |
e98a2d6e PP |
94 | STATE_SKIP_PACKET_PADDING, |
95 | }; | |
96 | ||
5f870343 JG |
97 | struct trace_field_path_cache { |
98 | /* | |
99 | * Indexes of the stream_id and stream_instance_id field in the packet | |
100 | * header structure, -1 if unset. | |
101 | */ | |
102 | int stream_id; | |
103 | int stream_instance_id; | |
104 | }; | |
105 | ||
106 | struct stream_class_field_path_cache { | |
107 | /* | |
108 | * Indexes of the v and id fields in the stream event header structure, | |
109 | * -1 if unset. | |
110 | */ | |
111 | int v; | |
112 | int id; | |
113 | ||
114 | /* | |
115 | * index of the timestamp_end, packet_size and content_size fields in | |
116 | * the stream packet context structure. Set to -1 if the fields were | |
117 | * not found. | |
118 | */ | |
119 | int timestamp_end; | |
120 | int packet_size; | |
121 | int content_size; | |
122 | }; | |
123 | ||
124 | struct field_cb_override { | |
50842bdc PP |
125 | enum bt_btr_status (* func)(void *value, |
126 | struct bt_field_type *type, void *data); | |
5f870343 JG |
127 | void *data; |
128 | }; | |
129 | ||
e98a2d6e | 130 | /* CTF notification iterator */ |
50842bdc | 131 | struct bt_notif_iter { |
e98a2d6e PP |
132 | /* Visit stack */ |
133 | struct stack *stack; | |
134 | ||
5c563278 PP |
135 | /* Current graph to create notifications (weak) */ |
136 | struct bt_graph *graph; | |
137 | ||
e98a2d6e PP |
138 | /* |
139 | * Current dynamic scope field pointer. | |
140 | * | |
312c056a PP |
141 | * This is set by read_dscope_begin_state() and contains the |
142 | * value of one of the pointers in `dscopes` below. | |
e98a2d6e | 143 | */ |
312c056a | 144 | struct bt_field *cur_dscope_field; |
e98a2d6e PP |
145 | |
146 | /* Trace and classes (owned by this) */ | |
147 | struct { | |
50842bdc PP |
148 | struct bt_trace *trace; |
149 | struct bt_stream_class *stream_class; | |
150 | struct bt_event_class *event_class; | |
312c056a | 151 | struct bt_clock_class_priority_map *cc_prio_map; |
e98a2d6e PP |
152 | } meta; |
153 | ||
312c056a PP |
154 | /* Current packet header field wrapper (NULL if not created yet) */ |
155 | struct bt_packet_header_field *packet_header_field; | |
156 | ||
157 | /* Current packet header field wrapper (NULL if not created yet) */ | |
158 | struct bt_packet_context_field *packet_context_field; | |
159 | ||
160 | /* Current event header field (NULL if not created yet) */ | |
161 | struct bt_event_header_field *event_header_field; | |
162 | ||
e98a2d6e | 163 | /* Current packet (NULL if not created yet) */ |
50842bdc | 164 | struct bt_packet *packet; |
e98a2d6e | 165 | |
af87daef | 166 | /* Current stream (NULL if not set yet) */ |
50842bdc | 167 | struct bt_stream *stream; |
af87daef | 168 | |
312c056a PP |
169 | /* Current event (NULL if not created yet) */ |
170 | struct bt_event *event; | |
171 | ||
172 | /* Current event notification (NULL if not created yet) */ | |
173 | struct bt_notification *event_notif; | |
174 | ||
5f870343 | 175 | /* |
312c056a PP |
176 | * Current `timestamp_end` field (to consider before switching |
177 | * packets). If it's set, it's a field which is within | |
178 | * `dscopes.stream_packet_context` below, which is in `packet` | |
179 | * above. | |
5f870343 | 180 | */ |
50842bdc | 181 | struct bt_field *cur_timestamp_end; |
5f870343 | 182 | |
e98a2d6e PP |
183 | /* Database of current dynamic scopes (owned by this) */ |
184 | struct { | |
50842bdc PP |
185 | struct bt_field *trace_packet_header; |
186 | struct bt_field *stream_packet_context; | |
187 | struct bt_field *stream_event_header; | |
188 | struct bt_field *stream_event_context; | |
189 | struct bt_field *event_context; | |
190 | struct bt_field *event_payload; | |
e98a2d6e PP |
191 | } dscopes; |
192 | ||
5f870343 JG |
193 | /* |
194 | * Special field overrides. | |
195 | * | |
196 | * Overrides are used to implement the behaviours of special fields such | |
197 | * as "timestamp_end" (which must be ignored until the end of the | |
198 | * packet), "id" (event id) which can be present multiple times and must | |
199 | * be updated multiple time. | |
200 | * | |
201 | * This should be used to implement the behaviour of integer fields | |
202 | * mapped to clocks and other "tagged" fields (in CTF 2). | |
203 | * | |
50842bdc | 204 | * bt_field_type to struct field_cb_override |
5f870343 JG |
205 | */ |
206 | GHashTable *field_overrides; | |
207 | ||
e98a2d6e PP |
208 | /* Current state */ |
209 | enum state state; | |
210 | ||
2cf1d51e | 211 | /* Current medium buffer data */ |
e98a2d6e PP |
212 | struct { |
213 | /* Last address provided by medium */ | |
214 | const uint8_t *addr; | |
215 | ||
216 | /* Buffer size provided by medium (bytes) */ | |
217 | size_t sz; | |
218 | ||
219 | /* Offset within whole packet of addr (bits) */ | |
220 | size_t packet_offset; | |
221 | ||
222 | /* Current position from addr (bits) */ | |
223 | size_t at; | |
174e773b PP |
224 | |
225 | /* Position of the last event header from addr (bits) */ | |
226 | size_t last_eh_at; | |
e98a2d6e PP |
227 | } buf; |
228 | ||
229 | /* Binary type reader */ | |
50842bdc | 230 | struct bt_btr *btr; |
e98a2d6e | 231 | |
2cf1d51e | 232 | /* Current medium data */ |
e98a2d6e | 233 | struct { |
50842bdc | 234 | struct bt_notif_iter_medium_ops medops; |
e98a2d6e PP |
235 | size_t max_request_sz; |
236 | void *data; | |
237 | } medium; | |
238 | ||
f42867e2 PP |
239 | /* Stream beginning was emitted */ |
240 | bool stream_begin_emitted; | |
241 | ||
e98a2d6e | 242 | /* Current packet size (bits) (-1 if unknown) */ |
e7a4393b | 243 | int64_t cur_packet_size; |
e98a2d6e PP |
244 | |
245 | /* Current content size (bits) (-1 if unknown) */ | |
e7a4393b | 246 | int64_t cur_content_size; |
c44c3e70 | 247 | |
9e0c8dbb JG |
248 | /* |
249 | * Offset, in the underlying media, of the current packet's start | |
250 | * (-1 if unknown). | |
251 | */ | |
252 | off_t cur_packet_offset; | |
253 | ||
50842bdc | 254 | /* bt_clock_class to uint64_t. */ |
c44c3e70 | 255 | GHashTable *clock_states; |
5f870343 JG |
256 | |
257 | /* | |
258 | * Cache of the trace-constant field paths (event header type) | |
259 | * associated to the current trace. | |
260 | */ | |
261 | struct trace_field_path_cache trace_field_path_cache; | |
262 | ||
263 | /* | |
264 | * Field path cache associated with the current stream class. | |
265 | * Ownership of this structure belongs to the field_path_caches HT. | |
266 | */ | |
267 | struct stream_class_field_path_cache *cur_sc_field_path_cache; | |
268 | ||
50842bdc | 269 | /* bt_stream_class to struct stream_class_field_path_cache. */ |
5f870343 | 270 | GHashTable *sc_field_path_caches; |
e98a2d6e PP |
271 | }; |
272 | ||
fdf0e7a0 PP |
273 | static inline |
274 | const char *state_string(enum state state) | |
275 | { | |
276 | switch (state) { | |
277 | case STATE_INIT: | |
278 | return "STATE_INIT"; | |
279 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
280 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN"; | |
281 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
282 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE"; | |
283 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
284 | return "STATE_AFTER_TRACE_PACKET_HEADER"; | |
285 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
286 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN"; | |
287 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
288 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE"; | |
289 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
290 | return "STATE_AFTER_STREAM_PACKET_CONTEXT"; | |
291 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
292 | return "STATE_EMIT_NOTIF_NEW_PACKET"; | |
f42867e2 PP |
293 | case STATE_EMIT_NOTIF_NEW_STREAM: |
294 | return "STATE_EMIT_NOTIF_NEW_STREAM"; | |
fdf0e7a0 PP |
295 | case STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN: |
296 | return "STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN"; | |
297 | case STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE: | |
298 | return "STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE"; | |
299 | case STATE_AFTER_STREAM_EVENT_HEADER: | |
300 | return "STATE_AFTER_STREAM_EVENT_HEADER"; | |
301 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN: | |
302 | return "STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN"; | |
303 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE: | |
304 | return "STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE"; | |
305 | case STATE_DSCOPE_EVENT_CONTEXT_BEGIN: | |
306 | return "STATE_DSCOPE_EVENT_CONTEXT_BEGIN"; | |
307 | case STATE_DSCOPE_EVENT_CONTEXT_CONTINUE: | |
308 | return "STATE_DSCOPE_EVENT_CONTEXT_CONTINUE"; | |
309 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
310 | return "STATE_DSCOPE_EVENT_PAYLOAD_BEGIN"; | |
311 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
312 | return "STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE"; | |
313 | case STATE_EMIT_NOTIF_EVENT: | |
314 | return "STATE_EMIT_NOTIF_EVENT"; | |
315 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
316 | return "STATE_EMIT_NOTIF_END_OF_PACKET"; | |
f42867e2 PP |
317 | case STATE_DONE: |
318 | return "STATE_DONE"; | |
fdf0e7a0 PP |
319 | case STATE_SKIP_PACKET_PADDING: |
320 | return "STATE_SKIP_PACKET_PADDING"; | |
321 | default: | |
322 | return "(unknown)"; | |
323 | } | |
324 | } | |
325 | ||
2cf1d51e | 326 | static |
50842bdc | 327 | int bt_notif_iter_switch_packet(struct bt_notif_iter *notit); |
2cf1d51e | 328 | |
5f870343 | 329 | static |
50842bdc PP |
330 | enum bt_btr_status btr_timestamp_end_cb(void *value, |
331 | struct bt_field_type *type, void *data); | |
5f870343 | 332 | |
e98a2d6e PP |
333 | static |
334 | void stack_entry_free_func(gpointer data) | |
335 | { | |
312c056a | 336 | g_free(data); |
e98a2d6e PP |
337 | } |
338 | ||
339 | static | |
50842bdc | 340 | struct stack *stack_new(struct bt_notif_iter *notit) |
e98a2d6e PP |
341 | { |
342 | struct stack *stack = NULL; | |
343 | ||
344 | stack = g_new0(struct stack, 1); | |
345 | if (!stack) { | |
fdf0e7a0 | 346 | BT_LOGE_STR("Failed to allocate one stack."); |
e98a2d6e PP |
347 | goto error; |
348 | } | |
349 | ||
350 | stack->entries = g_ptr_array_new_with_free_func(stack_entry_free_func); | |
351 | if (!stack->entries) { | |
fdf0e7a0 | 352 | BT_LOGE_STR("Failed to allocate a GPtrArray."); |
e98a2d6e PP |
353 | goto error; |
354 | } | |
355 | ||
fdf0e7a0 | 356 | BT_LOGD("Created stack: notit-addr=%p, stack-addr=%p", notit, stack); |
e98a2d6e | 357 | return stack; |
fdf0e7a0 | 358 | |
e98a2d6e PP |
359 | error: |
360 | g_free(stack); | |
e98a2d6e PP |
361 | return NULL; |
362 | } | |
363 | ||
364 | static | |
365 | void stack_destroy(struct stack *stack) | |
366 | { | |
f6ccaed9 | 367 | BT_ASSERT(stack); |
fdf0e7a0 | 368 | BT_LOGD("Destroying stack: addr=%p", stack); |
e98a2d6e PP |
369 | g_ptr_array_free(stack->entries, TRUE); |
370 | g_free(stack); | |
371 | } | |
372 | ||
373 | static | |
50842bdc | 374 | int stack_push(struct stack *stack, struct bt_field *base) |
e98a2d6e PP |
375 | { |
376 | int ret = 0; | |
377 | struct stack_entry *entry; | |
e98a2d6e | 378 | |
f6ccaed9 PP |
379 | BT_ASSERT(stack); |
380 | BT_ASSERT(base); | |
fdf0e7a0 PP |
381 | BT_LOGV("Pushing base field on stack: stack-addr=%p, " |
382 | "stack-size-before=%u, stack-size-after=%u", | |
383 | stack, stack->entries->len, stack->entries->len + 1); | |
e98a2d6e PP |
384 | entry = g_new0(struct stack_entry, 1); |
385 | if (!entry) { | |
fdf0e7a0 | 386 | BT_LOGE_STR("Failed to allocate one stack entry."); |
e98a2d6e PP |
387 | ret = -1; |
388 | goto end; | |
389 | } | |
390 | ||
312c056a | 391 | entry->base = base; |
e98a2d6e PP |
392 | g_ptr_array_add(stack->entries, entry); |
393 | ||
394 | end: | |
395 | return ret; | |
396 | } | |
397 | ||
398 | static inline | |
399 | unsigned int stack_size(struct stack *stack) | |
400 | { | |
f6ccaed9 | 401 | BT_ASSERT(stack); |
e98a2d6e PP |
402 | |
403 | return stack->entries->len; | |
404 | } | |
405 | ||
406 | static | |
407 | void stack_pop(struct stack *stack) | |
408 | { | |
f6ccaed9 PP |
409 | BT_ASSERT(stack); |
410 | BT_ASSERT(stack_size(stack)); | |
fdf0e7a0 PP |
411 | BT_LOGV("Popping from stack: " |
412 | "stack-addr=%p, stack-size-before=%u, stack-size-after=%u", | |
413 | stack, stack->entries->len, stack->entries->len - 1); | |
e98a2d6e PP |
414 | g_ptr_array_remove_index(stack->entries, stack->entries->len - 1); |
415 | } | |
416 | ||
417 | static inline | |
418 | struct stack_entry *stack_top(struct stack *stack) | |
419 | { | |
f6ccaed9 PP |
420 | BT_ASSERT(stack); |
421 | BT_ASSERT(stack_size(stack)); | |
e98a2d6e PP |
422 | |
423 | return g_ptr_array_index(stack->entries, stack->entries->len - 1); | |
424 | } | |
425 | ||
426 | static inline | |
427 | bool stack_empty(struct stack *stack) | |
428 | { | |
429 | return stack_size(stack) == 0; | |
430 | } | |
431 | ||
432 | static | |
433 | void stack_clear(struct stack *stack) | |
434 | { | |
f6ccaed9 | 435 | BT_ASSERT(stack); |
e98a2d6e PP |
436 | |
437 | if (!stack_empty(stack)) { | |
fdf0e7a0 PP |
438 | BT_LOGV("Clearing stack: stack-addr=%p, stack-size=%u", |
439 | stack, stack->entries->len); | |
e98a2d6e PP |
440 | g_ptr_array_remove_range(stack->entries, 0, stack_size(stack)); |
441 | } | |
442 | ||
f6ccaed9 | 443 | BT_ASSERT(stack_empty(stack)); |
e98a2d6e PP |
444 | } |
445 | ||
446 | static inline | |
50842bdc PP |
447 | enum bt_notif_iter_status notif_iter_status_from_m_status( |
448 | enum bt_notif_iter_medium_status m_status) | |
e98a2d6e | 449 | { |
dc77b521 | 450 | return (int) m_status; |
e98a2d6e PP |
451 | } |
452 | ||
453 | static inline | |
50842bdc | 454 | size_t buf_size_bits(struct bt_notif_iter *notit) |
e98a2d6e | 455 | { |
fdf0e7a0 | 456 | return notit->buf.sz * 8; |
e98a2d6e PP |
457 | } |
458 | ||
459 | static inline | |
50842bdc | 460 | size_t buf_available_bits(struct bt_notif_iter *notit) |
e98a2d6e PP |
461 | { |
462 | return buf_size_bits(notit) - notit->buf.at; | |
463 | } | |
464 | ||
465 | static inline | |
50842bdc | 466 | size_t packet_at(struct bt_notif_iter *notit) |
e98a2d6e PP |
467 | { |
468 | return notit->buf.packet_offset + notit->buf.at; | |
469 | } | |
470 | ||
e98a2d6e | 471 | static inline |
50842bdc | 472 | void buf_consume_bits(struct bt_notif_iter *notit, size_t incr) |
e98a2d6e | 473 | { |
fdf0e7a0 PP |
474 | BT_LOGV("Advancing cursor: notit-addr=%p, cur-before=%zu, cur-after=%zu", |
475 | notit, notit->buf.at, notit->buf.at + incr); | |
e98a2d6e PP |
476 | notit->buf.at += incr; |
477 | } | |
478 | ||
e98a2d6e | 479 | static |
50842bdc PP |
480 | enum bt_notif_iter_status request_medium_bytes( |
481 | struct bt_notif_iter *notit) | |
e98a2d6e | 482 | { |
fdf0e7a0 PP |
483 | uint8_t *buffer_addr = NULL; |
484 | size_t buffer_sz = 0; | |
50842bdc | 485 | enum bt_notif_iter_medium_status m_status; |
e98a2d6e | 486 | |
fdf0e7a0 PP |
487 | BT_LOGV("Calling user function (request bytes): notit-addr=%p, " |
488 | "request-size=%zu", notit, notit->medium.max_request_sz); | |
e98a2d6e PP |
489 | m_status = notit->medium.medops.request_bytes( |
490 | notit->medium.max_request_sz, &buffer_addr, | |
491 | &buffer_sz, notit->medium.data); | |
fdf0e7a0 | 492 | BT_LOGV("User function returned: status=%s, buf-addr=%p, buf-size=%zu", |
50842bdc | 493 | bt_notif_iter_medium_status_string(m_status), |
fdf0e7a0 | 494 | buffer_addr, buffer_sz); |
50842bdc | 495 | if (m_status == BT_NOTIF_ITER_MEDIUM_STATUS_OK) { |
f6ccaed9 | 496 | BT_ASSERT(buffer_sz != 0); |
e98a2d6e PP |
497 | |
498 | /* New packet offset is old one + old size (in bits) */ | |
499 | notit->buf.packet_offset += buf_size_bits(notit); | |
500 | ||
501 | /* Restart at the beginning of the new medium buffer */ | |
502 | notit->buf.at = 0; | |
2b186c3e | 503 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
504 | |
505 | /* New medium buffer size */ | |
506 | notit->buf.sz = buffer_sz; | |
507 | ||
508 | /* New medium buffer address */ | |
509 | notit->buf.addr = buffer_addr; | |
fdf0e7a0 PP |
510 | |
511 | BT_LOGV("User function returned new bytes: " | |
512 | "packet-offset=%zu, cur=%zu, size=%zu, addr=%p", | |
513 | notit->buf.packet_offset, notit->buf.at, | |
514 | notit->buf.sz, notit->buf.addr); | |
515 | BT_LOGV_MEM(buffer_addr, buffer_sz, "Returned bytes at %p:", | |
516 | buffer_addr); | |
50842bdc | 517 | } else if (m_status == BT_NOTIF_ITER_MEDIUM_STATUS_EOF) { |
0684124b PP |
518 | /* |
519 | * User returned end of stream: validate that we're not | |
520 | * in the middle of a packet header, packet context, or | |
521 | * event. | |
522 | */ | |
df0139b8 PP |
523 | if (notit->cur_packet_size >= 0) { |
524 | if (packet_at(notit) == notit->cur_packet_size) { | |
525 | goto end; | |
0684124b | 526 | } |
df0139b8 PP |
527 | } else { |
528 | if (packet_at(notit) == 0) { | |
529 | goto end; | |
0684124b | 530 | } |
0684124b | 531 | |
df0139b8 PP |
532 | if (notit->buf.last_eh_at != SIZE_MAX && |
533 | notit->buf.at == notit->buf.last_eh_at) { | |
534 | goto end; | |
0684124b PP |
535 | } |
536 | } | |
537 | ||
0684124b PP |
538 | /* All other states are invalid */ |
539 | BT_LOGW("User function returned %s, but notification iterator is in an unexpected state: " | |
df0139b8 PP |
540 | "state=%s, cur-packet-size=%" PRId64 ", cur=%zu, " |
541 | "packet-cur=%zu, last-eh-at=%zu", | |
50842bdc | 542 | bt_notif_iter_medium_status_string(m_status), |
df0139b8 PP |
543 | state_string(notit->state), |
544 | notit->cur_packet_size, | |
545 | notit->buf.at, packet_at(notit), | |
546 | notit->buf.last_eh_at); | |
50842bdc | 547 | m_status = BT_NOTIF_ITER_MEDIUM_STATUS_ERROR; |
fdf0e7a0 PP |
548 | } else if (m_status < 0) { |
549 | BT_LOGW("User function failed: status=%s", | |
50842bdc | 550 | bt_notif_iter_medium_status_string(m_status)); |
e98a2d6e PP |
551 | } |
552 | ||
df0139b8 | 553 | end: |
e98a2d6e PP |
554 | return notif_iter_status_from_m_status(m_status); |
555 | } | |
556 | ||
557 | static inline | |
50842bdc PP |
558 | enum bt_notif_iter_status buf_ensure_available_bits( |
559 | struct bt_notif_iter *notit) | |
e98a2d6e | 560 | { |
50842bdc | 561 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e PP |
562 | |
563 | if (buf_available_bits(notit) == 0) { | |
564 | /* | |
50842bdc | 565 | * This _cannot_ return BT_NOTIF_ITER_STATUS_OK |
e98a2d6e PP |
566 | * _and_ no bits. |
567 | */ | |
568 | status = request_medium_bytes(notit); | |
569 | } | |
570 | ||
571 | return status; | |
572 | } | |
573 | ||
574 | static | |
50842bdc PP |
575 | enum bt_notif_iter_status read_dscope_begin_state( |
576 | struct bt_notif_iter *notit, | |
577 | struct bt_field_type *dscope_field_type, | |
e98a2d6e | 578 | enum state done_state, enum state continue_state, |
312c056a | 579 | struct bt_field *dscope_field) |
e98a2d6e | 580 | { |
50842bdc PP |
581 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
582 | enum bt_btr_status btr_status; | |
e98a2d6e PP |
583 | size_t consumed_bits; |
584 | ||
e98a2d6e | 585 | notit->cur_dscope_field = dscope_field; |
fdf0e7a0 PP |
586 | BT_LOGV("Starting BTR: notit-addr=%p, btr-addr=%p, ft-addr=%p", |
587 | notit, notit->btr, dscope_field_type); | |
50842bdc | 588 | consumed_bits = bt_btr_start(notit->btr, dscope_field_type, |
e98a2d6e PP |
589 | notit->buf.addr, notit->buf.at, packet_at(notit), |
590 | notit->buf.sz, &btr_status); | |
fdf0e7a0 | 591 | BT_LOGV("BTR consumed bits: size=%zu", consumed_bits); |
e98a2d6e PP |
592 | |
593 | switch (btr_status) { | |
50842bdc | 594 | case BT_BTR_STATUS_OK: |
e98a2d6e | 595 | /* type was read completely */ |
fdf0e7a0 | 596 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
597 | notit->state = done_state; |
598 | break; | |
50842bdc | 599 | case BT_BTR_STATUS_EOF: |
fdf0e7a0 | 600 | BT_LOGV_STR("BTR needs more data to decode field completely."); |
e98a2d6e PP |
601 | notit->state = continue_state; |
602 | break; | |
603 | default: | |
fdf0e7a0 PP |
604 | BT_LOGW("BTR failed to start: notit-addr=%p, btr-addr=%p, " |
605 | "status=%s", notit, notit->btr, | |
50842bdc PP |
606 | bt_btr_status_string(btr_status)); |
607 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
e98a2d6e PP |
608 | goto end; |
609 | } | |
610 | ||
611 | /* Consume bits now since we know we're not in an error state */ | |
612 | buf_consume_bits(notit, consumed_bits); | |
613 | ||
614 | end: | |
615 | return status; | |
616 | } | |
617 | ||
618 | static | |
50842bdc PP |
619 | enum bt_notif_iter_status read_dscope_continue_state( |
620 | struct bt_notif_iter *notit, enum state done_state) | |
e98a2d6e | 621 | { |
50842bdc PP |
622 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
623 | enum bt_btr_status btr_status; | |
e98a2d6e PP |
624 | size_t consumed_bits; |
625 | ||
df0139b8 PP |
626 | BT_LOGV("Continuing BTR: notit-addr=%p, btr-addr=%p", |
627 | notit, notit->btr); | |
628 | ||
e98a2d6e | 629 | status = buf_ensure_available_bits(notit); |
50842bdc | 630 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
fdf0e7a0 PP |
631 | if (status < 0) { |
632 | BT_LOGW("Cannot ensure that buffer has at least one byte: " | |
633 | "notif-addr=%p, status=%s", | |
50842bdc | 634 | notit, bt_notif_iter_status_string(status)); |
fdf0e7a0 PP |
635 | } else { |
636 | BT_LOGV("Cannot ensure that buffer has at least one byte: " | |
637 | "notif-addr=%p, status=%s", | |
50842bdc | 638 | notit, bt_notif_iter_status_string(status)); |
fdf0e7a0 PP |
639 | } |
640 | ||
e98a2d6e PP |
641 | goto end; |
642 | } | |
643 | ||
df0139b8 | 644 | |
50842bdc | 645 | consumed_bits = bt_btr_continue(notit->btr, notit->buf.addr, |
fdf0e7a0 PP |
646 | notit->buf.sz, &btr_status); |
647 | BT_LOGV("BTR consumed bits: size=%zu", consumed_bits); | |
e98a2d6e PP |
648 | |
649 | switch (btr_status) { | |
50842bdc | 650 | case BT_BTR_STATUS_OK: |
78586d8a | 651 | /* Type was read completely. */ |
fdf0e7a0 | 652 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
653 | notit->state = done_state; |
654 | break; | |
50842bdc | 655 | case BT_BTR_STATUS_EOF: |
78586d8a | 656 | /* Stay in this continue state. */ |
fdf0e7a0 | 657 | BT_LOGV_STR("BTR needs more data to decode field completely."); |
e98a2d6e PP |
658 | break; |
659 | default: | |
fdf0e7a0 PP |
660 | BT_LOGW("BTR failed to continue: notit-addr=%p, btr-addr=%p, " |
661 | "status=%s", notit, notit->btr, | |
50842bdc PP |
662 | bt_btr_status_string(btr_status)); |
663 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
e98a2d6e PP |
664 | goto end; |
665 | } | |
666 | ||
78586d8a | 667 | /* Consume bits now since we know we're not in an error state. */ |
e98a2d6e | 668 | buf_consume_bits(notit, consumed_bits); |
e98a2d6e PP |
669 | end: |
670 | return status; | |
671 | } | |
672 | ||
673 | static | |
312c056a | 674 | void release_event_dscopes(struct bt_notif_iter *notit) |
e98a2d6e | 675 | { |
312c056a PP |
676 | notit->dscopes.stream_event_header = NULL; |
677 | ||
678 | if (notit->event_header_field) { | |
679 | bt_event_header_field_release(notit->event_header_field); | |
680 | notit->event_header_field = NULL; | |
681 | } | |
682 | ||
683 | notit->dscopes.stream_event_context = NULL; | |
684 | notit->dscopes.event_context = NULL; | |
685 | notit->dscopes.event_payload = NULL; | |
e98a2d6e PP |
686 | } |
687 | ||
688 | static | |
312c056a | 689 | void release_all_dscopes(struct bt_notif_iter *notit) |
e98a2d6e | 690 | { |
312c056a PP |
691 | notit->dscopes.trace_packet_header = NULL; |
692 | ||
693 | if (notit->packet_header_field) { | |
694 | bt_packet_header_field_release(notit->packet_header_field); | |
695 | notit->packet_header_field = NULL; | |
696 | } | |
697 | ||
698 | notit->dscopes.stream_packet_context = NULL; | |
699 | ||
700 | if (notit->packet_context_field) { | |
701 | bt_packet_context_field_release(notit->packet_context_field); | |
702 | notit->packet_context_field = NULL; | |
703 | } | |
704 | ||
705 | release_event_dscopes(notit); | |
e98a2d6e PP |
706 | } |
707 | ||
708 | static | |
50842bdc PP |
709 | enum bt_notif_iter_status read_packet_header_begin_state( |
710 | struct bt_notif_iter *notit) | |
e98a2d6e | 711 | { |
50842bdc PP |
712 | struct bt_field_type *packet_header_type = NULL; |
713 | enum bt_notif_iter_status ret = BT_NOTIF_ITER_STATUS_OK; | |
e98a2d6e | 714 | |
50842bdc | 715 | if (bt_notif_iter_switch_packet(notit)) { |
fdf0e7a0 | 716 | BT_LOGW("Cannot switch packet: notit-addr=%p", notit); |
50842bdc | 717 | ret = BT_NOTIF_ITER_STATUS_ERROR; |
2cf1d51e JG |
718 | goto end; |
719 | } | |
e98a2d6e | 720 | |
2cf1d51e | 721 | /* Packet header type is common to the whole trace. */ |
d1e46835 | 722 | packet_header_type = bt_trace_borrow_packet_header_field_type( |
78586d8a | 723 | notit->meta.trace); |
e98a2d6e | 724 | if (!packet_header_type) { |
835b2d10 | 725 | notit->state = STATE_AFTER_TRACE_PACKET_HEADER; |
e98a2d6e PP |
726 | goto end; |
727 | } | |
728 | ||
312c056a PP |
729 | /* |
730 | * Create free packet header field from trace. This field is | |
731 | * going to be moved to the packet once we create it. We cannot | |
732 | * create the packet now because: | |
733 | * | |
734 | * 1. A packet is created from a stream. | |
735 | * 2. A stream is created from a stream class. | |
736 | * 3. We need the packet header field's content to know the ID | |
737 | * of the stream class to select. | |
738 | */ | |
739 | BT_ASSERT(!notit->packet_header_field); | |
740 | notit->packet_header_field = bt_trace_create_packet_header_field( | |
741 | notit->meta.trace); | |
742 | if (!notit->packet_header_field) { | |
743 | BT_LOGE_STR("Cannot create packet header field wrapper from trace."); | |
744 | ret = BT_NOTIF_ITER_STATUS_ERROR; | |
745 | goto end; | |
746 | } | |
747 | ||
748 | notit->dscopes.trace_packet_header = | |
749 | bt_packet_header_field_borrow_field(notit->packet_header_field); | |
750 | BT_ASSERT(notit->dscopes.trace_packet_header); | |
fdf0e7a0 PP |
751 | BT_LOGV("Decoding packet header field:" |
752 | "notit-addr=%p, trace-addr=%p, trace-name=\"%s\", ft-addr=%p", | |
753 | notit, notit->meta.trace, | |
50842bdc | 754 | bt_trace_get_name(notit->meta.trace), packet_header_type); |
2cf1d51e | 755 | ret = read_dscope_begin_state(notit, packet_header_type, |
fdf0e7a0 PP |
756 | STATE_AFTER_TRACE_PACKET_HEADER, |
757 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
312c056a | 758 | notit->dscopes.trace_packet_header); |
fdf0e7a0 PP |
759 | if (ret < 0) { |
760 | BT_LOGW("Cannot decode packet header field: " | |
761 | "notit-addr=%p, trace-addr=%p, " | |
762 | "trace-name=\"%s\", ft-addr=%p", | |
763 | notit, notit->meta.trace, | |
50842bdc | 764 | bt_trace_get_name(notit->meta.trace), |
fdf0e7a0 PP |
765 | packet_header_type); |
766 | } | |
d1e46835 | 767 | |
e98a2d6e | 768 | end: |
2cf1d51e | 769 | return ret; |
e98a2d6e PP |
770 | } |
771 | ||
772 | static | |
50842bdc PP |
773 | enum bt_notif_iter_status read_packet_header_continue_state( |
774 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
775 | { |
776 | return read_dscope_continue_state(notit, | |
78586d8a | 777 | STATE_AFTER_TRACE_PACKET_HEADER); |
e98a2d6e PP |
778 | } |
779 | ||
5f870343 JG |
780 | static |
781 | struct stream_class_field_path_cache * | |
782 | create_stream_class_field_path_cache_entry( | |
50842bdc PP |
783 | struct bt_notif_iter *notit, |
784 | struct bt_stream_class *stream_class) | |
5f870343 JG |
785 | { |
786 | int v = -1; | |
787 | int id = -1; | |
788 | int timestamp_end = -1; | |
789 | int packet_size = -1; | |
790 | int content_size = -1; | |
791 | struct stream_class_field_path_cache *cache_entry = g_new0( | |
792 | struct stream_class_field_path_cache, 1); | |
50842bdc | 793 | struct bt_field_type *event_header = NULL, *packet_context = NULL; |
5f870343 JG |
794 | |
795 | if (!cache_entry) { | |
fdf0e7a0 | 796 | BT_LOGE_STR("Failed to allocate one stream class field path cache."); |
5f870343 JG |
797 | goto end; |
798 | } | |
799 | ||
d1e46835 PP |
800 | event_header = bt_stream_class_borrow_event_header_field_type( |
801 | stream_class); | |
50842bdc | 802 | if (event_header && bt_field_type_is_structure(event_header)) { |
5f870343 JG |
803 | int i, count; |
804 | ||
50842bdc | 805 | count = bt_field_type_structure_get_field_count( |
fdf0e7a0 | 806 | event_header); |
f6ccaed9 | 807 | BT_ASSERT(count >= 0); |
fdf0e7a0 | 808 | |
5f870343 JG |
809 | for (i = 0; i < count; i++) { |
810 | int ret; | |
811 | const char *name; | |
812 | ||
d1e46835 | 813 | ret = bt_field_type_structure_borrow_field_by_index( |
5f870343 JG |
814 | event_header, &name, NULL, i); |
815 | if (ret) { | |
fdf0e7a0 PP |
816 | BT_LOGE("Cannot get event header structure field type's field: " |
817 | "notit-addr=%p, stream-class-addr=%p, " | |
818 | "stream-class-name=\"%s\", " | |
819 | "stream-class-id=%" PRId64 ", " | |
820 | "ft-addr=%p, index=%d", | |
821 | notit, stream_class, | |
50842bdc PP |
822 | bt_stream_class_get_name(stream_class), |
823 | bt_stream_class_get_id(stream_class), | |
fdf0e7a0 | 824 | event_header, i); |
5f870343 JG |
825 | goto error; |
826 | } | |
827 | ||
828 | if (v != -1 && id != -1) { | |
829 | break; | |
830 | } | |
fdf0e7a0 PP |
831 | |
832 | if (v == -1 && strcmp(name, "v") == 0) { | |
5f870343 JG |
833 | v = i; |
834 | } else if (id == -1 && !strcmp(name, "id")) { | |
835 | id = i; | |
836 | } | |
837 | } | |
838 | } | |
839 | ||
d1e46835 | 840 | packet_context = bt_stream_class_borrow_packet_context_field_type( |
5f870343 | 841 | stream_class); |
50842bdc | 842 | if (packet_context && bt_field_type_is_structure(packet_context)) { |
5f870343 JG |
843 | int i, count; |
844 | ||
50842bdc | 845 | count = bt_field_type_structure_get_field_count( |
fdf0e7a0 | 846 | packet_context); |
f6ccaed9 | 847 | BT_ASSERT(count >= 0); |
fdf0e7a0 | 848 | |
5f870343 JG |
849 | for (i = 0; i < count; i++) { |
850 | int ret; | |
851 | const char *name; | |
50842bdc | 852 | struct bt_field_type *field_type; |
5f870343 JG |
853 | |
854 | if (timestamp_end != -1 && packet_size != -1 && | |
855 | content_size != -1) { | |
856 | break; | |
857 | } | |
858 | ||
d1e46835 | 859 | ret = bt_field_type_structure_borrow_field_by_index( |
5f870343 JG |
860 | packet_context, &name, &field_type, i); |
861 | if (ret) { | |
fdf0e7a0 PP |
862 | BT_LOGE("Cannot get packet context structure field type's field: " |
863 | "notit-addr=%p, stream-class-addr=%p, " | |
864 | "stream-class-name=\"%s\", " | |
865 | "stream-class-id=%" PRId64 ", " | |
866 | "ft-addr=%p, index=%d", | |
867 | notit, stream_class, | |
50842bdc PP |
868 | bt_stream_class_get_name(stream_class), |
869 | bt_stream_class_get_id(stream_class), | |
fdf0e7a0 | 870 | event_header, i); |
5f870343 JG |
871 | goto error; |
872 | } | |
873 | ||
874 | if (timestamp_end == -1 && | |
fdf0e7a0 | 875 | strcmp(name, "timestamp_end") == 0) { |
5f870343 JG |
876 | struct field_cb_override *override = g_new0( |
877 | struct field_cb_override, 1); | |
878 | ||
879 | if (!override) { | |
5f870343 JG |
880 | goto error; |
881 | } | |
882 | ||
883 | override->func = btr_timestamp_end_cb; | |
884 | override->data = notit; | |
5f870343 | 885 | g_hash_table_insert(notit->field_overrides, |
d1e46835 | 886 | field_type, override); |
5f870343 JG |
887 | timestamp_end = i; |
888 | } else if (packet_size == -1 && | |
889 | !strcmp(name, "packet_size")) { | |
890 | packet_size = i; | |
891 | } else if (content_size == -1 && | |
892 | !strcmp(name, "content_size")) { | |
893 | content_size = i; | |
894 | } | |
5f870343 JG |
895 | } |
896 | } | |
897 | ||
898 | cache_entry->v = v; | |
899 | cache_entry->id = id; | |
900 | cache_entry->timestamp_end = timestamp_end; | |
901 | cache_entry->packet_size = packet_size; | |
902 | cache_entry->content_size = content_size; | |
d1e46835 | 903 | |
5f870343 | 904 | end: |
5f870343 | 905 | return cache_entry; |
d1e46835 | 906 | |
5f870343 JG |
907 | error: |
908 | g_free(cache_entry); | |
909 | cache_entry = NULL; | |
910 | goto end; | |
911 | } | |
912 | ||
913 | static | |
914 | struct stream_class_field_path_cache *get_stream_class_field_path_cache( | |
50842bdc PP |
915 | struct bt_notif_iter *notit, |
916 | struct bt_stream_class *stream_class) | |
5f870343 JG |
917 | { |
918 | bool cache_entry_found; | |
919 | struct stream_class_field_path_cache *cache_entry; | |
920 | ||
921 | cache_entry_found = g_hash_table_lookup_extended( | |
922 | notit->sc_field_path_caches, | |
923 | stream_class, NULL, (gpointer) &cache_entry); | |
924 | if (unlikely(!cache_entry_found)) { | |
925 | cache_entry = create_stream_class_field_path_cache_entry(notit, | |
fdf0e7a0 | 926 | stream_class); |
5f870343 | 927 | g_hash_table_insert(notit->sc_field_path_caches, |
d1e46835 | 928 | stream_class, (gpointer) cache_entry); |
5f870343 JG |
929 | } |
930 | ||
931 | return cache_entry; | |
932 | } | |
933 | ||
e98a2d6e | 934 | static inline |
50842bdc PP |
935 | enum bt_notif_iter_status set_current_stream_class( |
936 | struct bt_notif_iter *notit) | |
e98a2d6e | 937 | { |
50842bdc PP |
938 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
939 | struct bt_field_type *packet_header_type = NULL; | |
940 | struct bt_field_type *stream_id_field_type = NULL; | |
941 | struct bt_stream_class *new_stream_class = NULL; | |
e98a2d6e PP |
942 | uint64_t stream_id; |
943 | ||
5f870343 JG |
944 | /* Clear the current stream class field path cache. */ |
945 | notit->cur_sc_field_path_cache = NULL; | |
946 | ||
e98a2d6e | 947 | /* Is there any "stream_id" field in the packet header? */ |
d1e46835 | 948 | packet_header_type = bt_trace_borrow_packet_header_field_type( |
fdf0e7a0 | 949 | notit->meta.trace); |
e98a2d6e | 950 | if (!packet_header_type) { |
fdf0e7a0 PP |
951 | /* |
952 | * No packet header, therefore no `stream_id` field, | |
953 | * therefore only one stream class. | |
954 | */ | |
955 | goto single_stream_class; | |
e98a2d6e PP |
956 | } |
957 | ||
312c056a | 958 | BT_ASSERT(bt_field_type_is_structure(packet_header_type)); |
e98a2d6e PP |
959 | |
960 | // TODO: optimalize! | |
961 | stream_id_field_type = | |
d1e46835 | 962 | bt_field_type_structure_borrow_field_type_by_name( |
fdf0e7a0 | 963 | packet_header_type, "stream_id"); |
e98a2d6e PP |
964 | if (stream_id_field_type) { |
965 | /* Find appropriate stream class using current stream ID */ | |
e98a2d6e | 966 | int ret; |
50842bdc | 967 | struct bt_field *stream_id_field = NULL; |
e98a2d6e | 968 | |
f6ccaed9 | 969 | BT_ASSERT(notit->dscopes.trace_packet_header); |
e98a2d6e PP |
970 | |
971 | // TODO: optimalize! | |
312c056a | 972 | stream_id_field = bt_field_structure_borrow_field_by_name( |
78586d8a | 973 | notit->dscopes.trace_packet_header, "stream_id"); |
f6ccaed9 | 974 | BT_ASSERT(stream_id_field); |
3dca2276 | 975 | ret = bt_field_integer_unsigned_get_value( |
78586d8a | 976 | stream_id_field, &stream_id); |
f6ccaed9 | 977 | BT_ASSERT(!ret); |
e98a2d6e | 978 | } else { |
fdf0e7a0 | 979 | single_stream_class: |
e98a2d6e | 980 | /* Only one stream: pick the first stream class */ |
f6ccaed9 | 981 | BT_ASSERT(bt_trace_get_stream_class_count( |
78586d8a | 982 | notit->meta.trace) == 1); |
e98a2d6e PP |
983 | stream_id = 0; |
984 | } | |
985 | ||
fdf0e7a0 PP |
986 | BT_LOGV("Found stream class ID to use: notit-addr=%p, " |
987 | "stream-class-id=%" PRIu64 ", " | |
988 | "trace-addr=%p, trace-name=\"%s\"", | |
989 | notit, stream_id, notit->meta.trace, | |
50842bdc | 990 | bt_trace_get_name(notit->meta.trace)); |
fdf0e7a0 | 991 | |
d1e46835 | 992 | new_stream_class = bt_trace_borrow_stream_class_by_id( |
fdf0e7a0 | 993 | notit->meta.trace, stream_id); |
115de887 | 994 | if (!new_stream_class) { |
fdf0e7a0 PP |
995 | BT_LOGW("No stream class with ID of stream class ID to use in trace: " |
996 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " | |
997 | "trace-addr=%p, trace-name=\"%s\"", | |
998 | notit, stream_id, notit->meta.trace, | |
50842bdc PP |
999 | bt_trace_get_name(notit->meta.trace)); |
1000 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
e98a2d6e PP |
1001 | goto end; |
1002 | } | |
1003 | ||
115de887 PP |
1004 | if (notit->meta.stream_class) { |
1005 | if (new_stream_class != notit->meta.stream_class) { | |
1006 | BT_LOGW("Two packets refer to two different stream classes within the same packet sequence: " | |
1007 | "notit-addr=%p, prev-stream-class-addr=%p, " | |
1008 | "prev-stream-class-name=\"%s\", " | |
1009 | "prev-stream-class-id=%" PRId64 ", " | |
1010 | "next-stream-class-addr=%p, " | |
1011 | "next-stream-class-name=\"%s\", " | |
1012 | "next-stream-class-id=%" PRId64 ", " | |
1013 | "trace-addr=%p, trace-name=\"%s\"", | |
1014 | notit, notit->meta.stream_class, | |
50842bdc PP |
1015 | bt_stream_class_get_name(notit->meta.stream_class), |
1016 | bt_stream_class_get_id(notit->meta.stream_class), | |
115de887 | 1017 | new_stream_class, |
50842bdc PP |
1018 | bt_stream_class_get_name(new_stream_class), |
1019 | bt_stream_class_get_id(new_stream_class), | |
115de887 | 1020 | notit->meta.trace, |
50842bdc PP |
1021 | bt_trace_get_name(notit->meta.trace)); |
1022 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
115de887 PP |
1023 | goto end; |
1024 | } | |
1025 | } else { | |
d1e46835 | 1026 | notit->meta.stream_class = new_stream_class; |
115de887 PP |
1027 | } |
1028 | ||
fdf0e7a0 PP |
1029 | BT_LOGV("Set current stream class: " |
1030 | "notit-addr=%p, stream-class-addr=%p, " | |
1031 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1032 | notit, notit->meta.stream_class, | |
50842bdc PP |
1033 | bt_stream_class_get_name(notit->meta.stream_class), |
1034 | bt_stream_class_get_id(notit->meta.stream_class)); | |
fdf0e7a0 | 1035 | |
5f870343 JG |
1036 | /* |
1037 | * Retrieve (or lazily create) the current stream class field path | |
1038 | * cache. | |
1039 | */ | |
1040 | notit->cur_sc_field_path_cache = get_stream_class_field_path_cache( | |
fdf0e7a0 | 1041 | notit, notit->meta.stream_class); |
5f870343 | 1042 | if (!notit->cur_sc_field_path_cache) { |
fdf0e7a0 PP |
1043 | BT_LOGW("Cannot retrieve stream class field path from cache: " |
1044 | "notit-addr=%p, stream-class-addr=%p, " | |
1045 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1046 | notit, notit->meta.stream_class, | |
50842bdc PP |
1047 | bt_stream_class_get_name(notit->meta.stream_class), |
1048 | bt_stream_class_get_id(notit->meta.stream_class)); | |
1049 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
5f870343 JG |
1050 | goto end; |
1051 | } | |
d1e46835 | 1052 | |
e98a2d6e | 1053 | end: |
e98a2d6e PP |
1054 | return status; |
1055 | } | |
1056 | ||
312c056a PP |
1057 | static inline |
1058 | uint64_t get_cur_stream_instance_id(struct bt_notif_iter *notit) | |
1059 | { | |
1060 | struct bt_field *stream_instance_id_field = NULL; | |
1061 | uint64_t stream_instance_id = -1ULL; | |
1062 | int ret; | |
1063 | ||
1064 | if (!notit->dscopes.trace_packet_header) { | |
1065 | goto end; | |
1066 | } | |
1067 | ||
1068 | stream_instance_id_field = bt_field_structure_borrow_field_by_name( | |
1069 | notit->dscopes.trace_packet_header, "stream_instance_id"); | |
1070 | if (!stream_instance_id_field) { | |
1071 | goto end; | |
1072 | } | |
1073 | ||
1074 | ret = bt_field_integer_unsigned_get_value(stream_instance_id_field, | |
1075 | &stream_instance_id); | |
1076 | if (ret) { | |
1077 | stream_instance_id = -1ULL; | |
1078 | goto end; | |
1079 | } | |
1080 | ||
1081 | end: | |
1082 | return stream_instance_id; | |
1083 | } | |
1084 | ||
1085 | static inline | |
1086 | enum bt_notif_iter_status set_current_stream(struct bt_notif_iter *notit) | |
1087 | { | |
1088 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; | |
1089 | struct bt_stream *stream = NULL; | |
1090 | ||
1091 | BT_LOGV("Calling user function (get stream): notit-addr=%p, " | |
1092 | "stream-class-addr=%p, stream-class-name=\"%s\", " | |
1093 | "stream-class-id=%" PRId64, | |
1094 | notit, notit->meta.stream_class, | |
1095 | bt_stream_class_get_name(notit->meta.stream_class), | |
1096 | bt_stream_class_get_id(notit->meta.stream_class)); | |
1097 | stream = bt_get(notit->medium.medops.borrow_stream( | |
1098 | notit->meta.stream_class, get_cur_stream_instance_id(notit), | |
1099 | notit->medium.data)); | |
1100 | BT_LOGV("User function returned: stream-addr=%p", stream); | |
1101 | if (!stream) { | |
1102 | BT_LOGW_STR("User function failed to return a stream object for the given stream class."); | |
1103 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1104 | goto end; | |
1105 | } | |
1106 | ||
1107 | if (notit->stream && stream != notit->stream) { | |
1108 | BT_LOGW("User function returned a different stream than the previous one for the same sequence of packets."); | |
1109 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1110 | goto end; | |
1111 | } | |
1112 | ||
1113 | BT_MOVE(notit->stream, stream); | |
1114 | ||
1115 | end: | |
1116 | bt_put(stream); | |
1117 | return status; | |
1118 | } | |
1119 | ||
1120 | static inline | |
1121 | enum bt_notif_iter_status set_current_packet(struct bt_notif_iter *notit) | |
1122 | { | |
1123 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; | |
1124 | struct bt_packet *packet = NULL; | |
1125 | ||
1126 | BT_LOGV("Creating packet for packet notification: " | |
1127 | "notit-addr=%p", notit); | |
1128 | BT_LOGV("Creating packet from stream: " | |
1129 | "notit-addr=%p, stream-addr=%p, " | |
1130 | "stream-class-addr=%p, " | |
1131 | "stream-class-name=\"%s\", " | |
1132 | "stream-class-id=%" PRId64, | |
1133 | notit, notit->stream, notit->meta.stream_class, | |
1134 | bt_stream_class_get_name(notit->meta.stream_class), | |
1135 | bt_stream_class_get_id(notit->meta.stream_class)); | |
1136 | ||
1137 | /* Create packet */ | |
1138 | BT_ASSERT(notit->stream); | |
1139 | packet = bt_packet_create(notit->stream); | |
1140 | if (!packet) { | |
1141 | BT_LOGE("Cannot create packet from stream: " | |
1142 | "notit-addr=%p, stream-addr=%p, " | |
1143 | "stream-class-addr=%p, " | |
1144 | "stream-class-name=\"%s\", " | |
1145 | "stream-class-id=%" PRId64, | |
1146 | notit, notit->stream, notit->meta.stream_class, | |
1147 | bt_stream_class_get_name(notit->meta.stream_class), | |
1148 | bt_stream_class_get_id(notit->meta.stream_class)); | |
1149 | goto error; | |
1150 | } | |
1151 | ||
1152 | goto end; | |
1153 | ||
1154 | error: | |
1155 | BT_PUT(packet); | |
1156 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1157 | ||
1158 | end: | |
1159 | BT_MOVE(notit->packet, packet); | |
1160 | return status; | |
1161 | } | |
1162 | ||
e98a2d6e | 1163 | static |
50842bdc PP |
1164 | enum bt_notif_iter_status after_packet_header_state( |
1165 | struct bt_notif_iter *notit) | |
e98a2d6e | 1166 | { |
50842bdc | 1167 | enum bt_notif_iter_status status; |
e98a2d6e PP |
1168 | |
1169 | status = set_current_stream_class(notit); | |
312c056a PP |
1170 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
1171 | goto end; | |
e98a2d6e PP |
1172 | } |
1173 | ||
312c056a PP |
1174 | notit->state = STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN; |
1175 | ||
1176 | end: | |
e98a2d6e PP |
1177 | return status; |
1178 | } | |
1179 | ||
1180 | static | |
50842bdc PP |
1181 | enum bt_notif_iter_status read_packet_context_begin_state( |
1182 | struct bt_notif_iter *notit) | |
e98a2d6e | 1183 | { |
50842bdc PP |
1184 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1185 | struct bt_field_type *packet_context_type; | |
e98a2d6e | 1186 | |
f6ccaed9 | 1187 | BT_ASSERT(notit->meta.stream_class); |
d1e46835 | 1188 | packet_context_type = bt_stream_class_borrow_packet_context_field_type( |
fdf0e7a0 | 1189 | notit->meta.stream_class); |
e98a2d6e | 1190 | if (!packet_context_type) { |
fdf0e7a0 PP |
1191 | BT_LOGV("No packet packet context field type in stream class: continuing: " |
1192 | "notit-addr=%p, stream-class-addr=%p, " | |
1193 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1194 | notit, notit->meta.stream_class, | |
50842bdc PP |
1195 | bt_stream_class_get_name(notit->meta.stream_class), |
1196 | bt_stream_class_get_id(notit->meta.stream_class)); | |
835b2d10 | 1197 | notit->state = STATE_AFTER_STREAM_PACKET_CONTEXT; |
e98a2d6e PP |
1198 | goto end; |
1199 | } | |
1200 | ||
312c056a PP |
1201 | /* |
1202 | * Create free packet context field from stream class. This | |
1203 | * field is going to be moved to the packet once we create it. | |
1204 | * We cannot create the packet now because a packet is created | |
1205 | * from a stream, and this API must be able to return the packet | |
1206 | * header and context fields without creating a stream | |
1207 | * (bt_notif_iter_get_packet_header_context_fields()). | |
1208 | */ | |
1209 | BT_ASSERT(!notit->packet_context_field); | |
1210 | notit->packet_context_field = | |
1211 | bt_stream_class_create_packet_context_field( | |
1212 | notit->meta.stream_class); | |
1213 | if (!notit->packet_context_field) { | |
1214 | BT_LOGE_STR("Cannot create packet context field wrapper from stream class."); | |
1215 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1216 | goto end; | |
1217 | } | |
1218 | ||
1219 | notit->dscopes.stream_packet_context = | |
1220 | bt_packet_context_field_borrow_field(notit->packet_context_field); | |
1221 | BT_ASSERT(notit->dscopes.stream_packet_context); | |
fdf0e7a0 PP |
1222 | BT_LOGV("Decoding packet context field: " |
1223 | "notit-addr=%p, stream-class-addr=%p, " | |
1224 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1225 | "ft-addr=%p", | |
1226 | notit, notit->meta.stream_class, | |
50842bdc PP |
1227 | bt_stream_class_get_name(notit->meta.stream_class), |
1228 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 | 1229 | packet_context_type); |
e98a2d6e | 1230 | status = read_dscope_begin_state(notit, packet_context_type, |
fdf0e7a0 PP |
1231 | STATE_AFTER_STREAM_PACKET_CONTEXT, |
1232 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
312c056a | 1233 | notit->dscopes.stream_packet_context); |
fdf0e7a0 PP |
1234 | if (status < 0) { |
1235 | BT_LOGW("Cannot decode packet context field: " | |
1236 | "notit-addr=%p, stream-class-addr=%p, " | |
1237 | "stream-class-name=\"%s\", " | |
1238 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1239 | notit, notit->meta.stream_class, | |
50842bdc PP |
1240 | bt_stream_class_get_name(notit->meta.stream_class), |
1241 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 PP |
1242 | packet_context_type); |
1243 | } | |
e98a2d6e PP |
1244 | |
1245 | end: | |
e98a2d6e PP |
1246 | return status; |
1247 | } | |
1248 | ||
1249 | static | |
50842bdc PP |
1250 | enum bt_notif_iter_status read_packet_context_continue_state( |
1251 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1252 | { |
1253 | return read_dscope_continue_state(notit, | |
78586d8a | 1254 | STATE_AFTER_STREAM_PACKET_CONTEXT); |
e98a2d6e PP |
1255 | } |
1256 | ||
78586d8a | 1257 | static |
50842bdc PP |
1258 | enum bt_notif_iter_status set_current_packet_content_sizes( |
1259 | struct bt_notif_iter *notit) | |
e98a2d6e | 1260 | { |
50842bdc PP |
1261 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1262 | struct bt_field *packet_size_field = NULL; | |
1263 | struct bt_field *content_size_field = NULL; | |
97755805 | 1264 | uint64_t content_size = -1ULL, packet_size = -1ULL; |
e98a2d6e | 1265 | |
89b08333 MD |
1266 | if (!notit->dscopes.stream_packet_context) { |
1267 | goto end; | |
1268 | } | |
e98a2d6e | 1269 | |
312c056a | 1270 | packet_size_field = bt_field_structure_borrow_field_by_name( |
fdf0e7a0 | 1271 | notit->dscopes.stream_packet_context, "packet_size"); |
312c056a | 1272 | content_size_field = bt_field_structure_borrow_field_by_name( |
fdf0e7a0 | 1273 | notit->dscopes.stream_packet_context, "content_size"); |
e98a2d6e | 1274 | if (packet_size_field) { |
3dca2276 | 1275 | int ret = bt_field_integer_unsigned_get_value( |
fdf0e7a0 | 1276 | packet_size_field, &packet_size); |
e98a2d6e | 1277 | |
f6ccaed9 | 1278 | BT_ASSERT(ret == 0); |
e98a2d6e | 1279 | if (packet_size == 0) { |
fdf0e7a0 PP |
1280 | BT_LOGW("Invalid packet size: packet context field indicates packet size is zero: " |
1281 | "notit-addr=%p, packet-context-field-addr=%p", | |
1282 | notit, notit->dscopes.stream_packet_context); | |
50842bdc | 1283 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
1284 | goto end; |
1285 | } else if ((packet_size % 8) != 0) { | |
fdf0e7a0 PP |
1286 | BT_LOGW("Invalid packet size: packet context field indicates packet size is not a multiple of 8: " |
1287 | "notit-addr=%p, packet-context-field-addr=%p, " | |
1288 | "packet-size=%" PRIu64, | |
1289 | notit, notit->dscopes.stream_packet_context, | |
1290 | packet_size); | |
50842bdc | 1291 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
1292 | goto end; |
1293 | } | |
1294 | } | |
78586d8a | 1295 | |
e98a2d6e | 1296 | if (content_size_field) { |
3dca2276 | 1297 | int ret = bt_field_integer_unsigned_get_value( |
e98a2d6e | 1298 | content_size_field, &content_size); |
78586d8a | 1299 | |
f6ccaed9 | 1300 | BT_ASSERT(ret == 0); |
e98a2d6e PP |
1301 | } else { |
1302 | content_size = packet_size; | |
1303 | } | |
1304 | ||
fdf0e7a0 PP |
1305 | if (content_size > packet_size) { |
1306 | BT_LOGW("Invalid packet or content size: packet context field indicates content size is greater than packet size: " | |
1307 | "notit-addr=%p, packet-context-field-addr=%p, " | |
1308 | "packet-size=%" PRIu64 ", content-size=%" PRIu64, | |
1309 | notit, notit->dscopes.stream_packet_context, | |
1310 | packet_size, content_size); | |
50842bdc | 1311 | status = BT_NOTIF_ITER_STATUS_ERROR; |
fdf0e7a0 PP |
1312 | goto end; |
1313 | } | |
1314 | ||
97755805 MD |
1315 | if (packet_size != -1ULL) { |
1316 | notit->cur_packet_size = packet_size; | |
1317 | } else { | |
1318 | /* | |
1319 | * Use the content size as packet size indicator if the | |
1320 | * packet size field is missing. This means there is no | |
1321 | * padding in this stream. | |
1322 | */ | |
1323 | notit->cur_packet_size = content_size; | |
1324 | } | |
e98a2d6e | 1325 | notit->cur_content_size = content_size; |
fdf0e7a0 PP |
1326 | BT_LOGV("Set current packet and content sizes: " |
1327 | "notit-addr=%p, packet-size=%" PRIu64 ", content-size=%" PRIu64, | |
1328 | notit, packet_size, content_size); | |
e98a2d6e | 1329 | end: |
e98a2d6e PP |
1330 | return status; |
1331 | } | |
1332 | ||
1333 | static | |
50842bdc PP |
1334 | enum bt_notif_iter_status after_packet_context_state( |
1335 | struct bt_notif_iter *notit) | |
e98a2d6e | 1336 | { |
50842bdc | 1337 | enum bt_notif_iter_status status; |
e98a2d6e PP |
1338 | |
1339 | status = set_current_packet_content_sizes(notit); | |
50842bdc | 1340 | if (status == BT_NOTIF_ITER_STATUS_OK) { |
f42867e2 PP |
1341 | if (notit->stream_begin_emitted) { |
1342 | notit->state = STATE_EMIT_NOTIF_NEW_PACKET; | |
1343 | } else { | |
1344 | notit->state = STATE_EMIT_NOTIF_NEW_STREAM; | |
1345 | } | |
e98a2d6e PP |
1346 | } |
1347 | ||
1348 | return status; | |
1349 | } | |
1350 | ||
1351 | static | |
50842bdc PP |
1352 | enum bt_notif_iter_status read_event_header_begin_state( |
1353 | struct bt_notif_iter *notit) | |
e98a2d6e | 1354 | { |
50842bdc PP |
1355 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1356 | struct bt_field_type *event_header_type = NULL; | |
e98a2d6e | 1357 | |
174e773b PP |
1358 | /* Reset the position of the last event header */ |
1359 | notit->buf.last_eh_at = notit->buf.at; | |
1360 | ||
e98a2d6e PP |
1361 | /* Check if we have some content left */ |
1362 | if (notit->cur_content_size >= 0) { | |
1363 | if (packet_at(notit) == notit->cur_content_size) { | |
1364 | /* No more events! */ | |
fdf0e7a0 PP |
1365 | BT_LOGV("Reached end of packet: notit-addr=%p, " |
1366 | "cur=%zu", notit, packet_at(notit)); | |
e98a2d6e PP |
1367 | notit->state = STATE_EMIT_NOTIF_END_OF_PACKET; |
1368 | goto end; | |
1369 | } else if (packet_at(notit) > notit->cur_content_size) { | |
1370 | /* That's not supposed to happen */ | |
fdf0e7a0 | 1371 | BT_LOGV("Before decoding event header field: cursor is passed the packet's content: " |
1974687e | 1372 | "notit-addr=%p, content-size=%" PRId64 ", " |
fdf0e7a0 PP |
1373 | "cur=%zu", notit, notit->cur_content_size, |
1374 | packet_at(notit)); | |
50842bdc | 1375 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
1376 | goto end; |
1377 | } | |
1378 | } | |
1379 | ||
312c056a PP |
1380 | release_event_dscopes(notit); |
1381 | BT_ASSERT(notit->meta.stream_class); | |
d1e46835 | 1382 | event_header_type = bt_stream_class_borrow_event_header_field_type( |
e98a2d6e PP |
1383 | notit->meta.stream_class); |
1384 | if (!event_header_type) { | |
835b2d10 | 1385 | notit->state = STATE_AFTER_STREAM_EVENT_HEADER; |
e98a2d6e PP |
1386 | goto end; |
1387 | } | |
1388 | ||
312c056a PP |
1389 | BT_ASSERT(!notit->event_header_field); |
1390 | notit->event_header_field = bt_stream_class_create_event_header_field( | |
1391 | notit->meta.stream_class); | |
1392 | if (!notit->event_header_field) { | |
1393 | BT_LOGE_STR("Cannot create event header field wrapper from trace."); | |
1394 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1395 | goto end; | |
1396 | } | |
1397 | ||
1398 | notit->dscopes.stream_event_header = | |
1399 | bt_event_header_field_borrow_field(notit->event_header_field); | |
1400 | BT_ASSERT(notit->dscopes.stream_event_header); | |
fdf0e7a0 PP |
1401 | BT_LOGV("Decoding event header field: " |
1402 | "notit-addr=%p, stream-class-addr=%p, " | |
1403 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1404 | "ft-addr=%p", | |
1405 | notit, notit->meta.stream_class, | |
50842bdc PP |
1406 | bt_stream_class_get_name(notit->meta.stream_class), |
1407 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 | 1408 | event_header_type); |
e98a2d6e PP |
1409 | status = read_dscope_begin_state(notit, event_header_type, |
1410 | STATE_AFTER_STREAM_EVENT_HEADER, | |
1411 | STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE, | |
312c056a | 1412 | notit->dscopes.stream_event_header); |
fdf0e7a0 PP |
1413 | if (status < 0) { |
1414 | BT_LOGW("Cannot decode event header field: " | |
1415 | "notit-addr=%p, stream-class-addr=%p, " | |
1416 | "stream-class-name=\"%s\", " | |
1417 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1418 | notit, notit->meta.stream_class, | |
50842bdc PP |
1419 | bt_stream_class_get_name(notit->meta.stream_class), |
1420 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 PP |
1421 | event_header_type); |
1422 | } | |
e98a2d6e | 1423 | |
d1e46835 | 1424 | end: |
e98a2d6e PP |
1425 | return status; |
1426 | } | |
1427 | ||
1428 | static | |
50842bdc PP |
1429 | enum bt_notif_iter_status read_event_header_continue_state( |
1430 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1431 | { |
1432 | return read_dscope_continue_state(notit, | |
1433 | STATE_AFTER_STREAM_EVENT_HEADER); | |
1434 | } | |
1435 | ||
1436 | static inline | |
50842bdc | 1437 | enum bt_notif_iter_status set_current_event_class(struct bt_notif_iter *notit) |
e98a2d6e PP |
1438 | { |
1439 | /* | |
1440 | * The assert() calls in this function are okay because it is | |
1441 | * assumed here that all the metadata objects have been | |
1442 | * validated for CTF correctness before decoding actual streams. | |
1443 | */ | |
1444 | ||
50842bdc PP |
1445 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1446 | struct bt_field_type *event_header_type; | |
1447 | struct bt_field_type *id_field_type = NULL; | |
1448 | struct bt_field_type *v_field_type = NULL; | |
e98a2d6e PP |
1449 | uint64_t event_id = -1ULL; |
1450 | int ret; | |
1451 | ||
d1e46835 | 1452 | event_header_type = bt_stream_class_borrow_event_header_field_type( |
e98a2d6e PP |
1453 | notit->meta.stream_class); |
1454 | if (!event_header_type) { | |
fdf0e7a0 PP |
1455 | /* |
1456 | * No event header, therefore no event class ID field, | |
1457 | * therefore only one event class. | |
1458 | */ | |
1459 | goto single_event_class; | |
e98a2d6e PP |
1460 | } |
1461 | ||
1462 | /* Is there any "id"/"v" field in the event header? */ | |
312c056a | 1463 | BT_ASSERT(bt_field_type_is_structure(event_header_type)); |
d1e46835 | 1464 | id_field_type = bt_field_type_structure_borrow_field_type_by_name( |
e98a2d6e | 1465 | event_header_type, "id"); |
d1e46835 | 1466 | v_field_type = bt_field_type_structure_borrow_field_type_by_name( |
e98a2d6e | 1467 | event_header_type, "v"); |
f6ccaed9 | 1468 | BT_ASSERT(notit->dscopes.stream_event_header); |
e98a2d6e PP |
1469 | if (v_field_type) { |
1470 | /* | |
1471 | * _ _____ _____ | |
1472 | * | | |_ _|_ _| __ __ _ | |
1473 | * | | | | | || '_ \ / _` | | |
1474 | * | |___| | | || | | | (_| | S P E C I A L | |
1475 | * |_____|_| |_||_| |_|\__, | C A S E ™ | |
1476 | * |___/ | |
1477 | */ | |
50842bdc PP |
1478 | struct bt_field *v_field = NULL; |
1479 | struct bt_field *v_struct_field = NULL; | |
1480 | struct bt_field *v_struct_id_field = NULL; | |
e98a2d6e PP |
1481 | |
1482 | // TODO: optimalize! | |
312c056a | 1483 | v_field = bt_field_structure_borrow_field_by_name( |
e98a2d6e | 1484 | notit->dscopes.stream_event_header, "v"); |
f6ccaed9 | 1485 | BT_ASSERT(v_field); |
e98a2d6e PP |
1486 | |
1487 | v_struct_field = | |
312c056a | 1488 | bt_field_variant_borrow_current_field(v_field); |
e98a2d6e PP |
1489 | if (!v_struct_field) { |
1490 | goto end_v_field_type; | |
1491 | } | |
1492 | ||
1493 | // TODO: optimalize! | |
312c056a PP |
1494 | v_struct_id_field = bt_field_structure_borrow_field_by_name( |
1495 | v_struct_field, "id"); | |
e98a2d6e PP |
1496 | if (!v_struct_id_field) { |
1497 | goto end_v_field_type; | |
1498 | } | |
1499 | ||
50842bdc | 1500 | if (bt_field_is_integer(v_struct_id_field)) { |
3dca2276 | 1501 | ret = bt_field_integer_unsigned_get_value( |
fdf0e7a0 PP |
1502 | v_struct_id_field, &event_id); |
1503 | if (ret) { | |
1504 | BT_LOGV("Cannot get value of unsigned integer field (`id`): continuing: " | |
1505 | "notit=%p, field-addr=%p", | |
1506 | notit, v_struct_id_field); | |
1507 | event_id = -1ULL; | |
1508 | } | |
e98a2d6e | 1509 | } |
e98a2d6e PP |
1510 | } |
1511 | ||
312c056a | 1512 | end_v_field_type: |
e98a2d6e PP |
1513 | if (id_field_type && event_id == -1ULL) { |
1514 | /* Check "id" field */ | |
50842bdc | 1515 | struct bt_field *id_field = NULL; |
6606e9c1 | 1516 | int ret_get_value = 0; |
e98a2d6e PP |
1517 | |
1518 | // TODO: optimalize! | |
312c056a | 1519 | id_field = bt_field_structure_borrow_field_by_name( |
e98a2d6e | 1520 | notit->dscopes.stream_event_header, "id"); |
fdf0e7a0 PP |
1521 | if (!id_field) { |
1522 | goto check_event_id; | |
1523 | } | |
e98a2d6e | 1524 | |
312c056a PP |
1525 | ret_get_value = bt_field_integer_unsigned_get_value( |
1526 | id_field, &event_id); | |
f6ccaed9 | 1527 | BT_ASSERT(ret_get_value == 0); |
e98a2d6e PP |
1528 | } |
1529 | ||
fdf0e7a0 | 1530 | check_event_id: |
e98a2d6e | 1531 | if (event_id == -1ULL) { |
fdf0e7a0 | 1532 | single_event_class: |
e98a2d6e | 1533 | /* Event ID not found: single event? */ |
f6ccaed9 | 1534 | BT_ASSERT(bt_stream_class_get_event_class_count( |
e98a2d6e PP |
1535 | notit->meta.stream_class) == 1); |
1536 | event_id = 0; | |
1537 | } | |
1538 | ||
fdf0e7a0 PP |
1539 | BT_LOGV("Found event class ID to use: notit-addr=%p, " |
1540 | "stream-class-addr=%p, stream-class-name=\"%s\", " | |
1541 | "stream-class-id=%" PRId64 ", " | |
1542 | "event-class-id=%" PRIu64, | |
1543 | notit, notit->meta.stream_class, | |
50842bdc PP |
1544 | bt_stream_class_get_name(notit->meta.stream_class), |
1545 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 | 1546 | event_id); |
d1e46835 | 1547 | notit->meta.event_class = bt_stream_class_borrow_event_class_by_id( |
e98a2d6e PP |
1548 | notit->meta.stream_class, event_id); |
1549 | if (!notit->meta.event_class) { | |
fdf0e7a0 PP |
1550 | BT_LOGW("No event class with ID of event class ID to use in stream class: " |
1551 | "notit-addr=%p, stream-class-addr=%p, " | |
1552 | "stream-class-name=\"%s\", " | |
1553 | "stream-class-id=%" PRId64 ", " | |
1554 | "event-class-id=%" PRIu64, | |
1555 | notit, notit->meta.stream_class, | |
50842bdc PP |
1556 | bt_stream_class_get_name(notit->meta.stream_class), |
1557 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 | 1558 | event_id); |
50842bdc | 1559 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
1560 | goto end; |
1561 | } | |
1562 | ||
fdf0e7a0 PP |
1563 | BT_LOGV("Set current event class: " |
1564 | "notit-addr=%p, event-class-addr=%p, " | |
1565 | "event-class-name=\"%s\", event-class-id=%" PRId64, | |
1566 | notit, notit->meta.event_class, | |
50842bdc PP |
1567 | bt_event_class_get_name(notit->meta.event_class), |
1568 | bt_event_class_get_id(notit->meta.event_class)); | |
fdf0e7a0 | 1569 | |
e98a2d6e | 1570 | end: |
e98a2d6e PP |
1571 | return status; |
1572 | } | |
1573 | ||
312c056a PP |
1574 | static inline |
1575 | enum bt_notif_iter_status set_current_event_notification( | |
1576 | struct bt_notif_iter *notit) | |
1577 | { | |
1578 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; | |
1579 | struct bt_notification *notif = NULL; | |
1580 | ||
1581 | BT_ASSERT(notit->meta.event_class); | |
1582 | BT_ASSERT(notit->packet); | |
1583 | BT_LOGV("Creating event notification from event class and packet: " | |
1584 | "notit-addr=%p, ec-addr=%p, ec-name=\"%s\", packet-addr=%p", | |
1585 | notit, notit->meta.event_class, | |
1586 | bt_event_class_get_name(notit->meta.event_class), | |
1587 | notit->packet); | |
5c563278 PP |
1588 | BT_ASSERT(notit->graph); |
1589 | notif = bt_notification_event_create(notit->graph, | |
1590 | notit->meta.event_class, notit->packet, | |
1591 | notit->meta.cc_prio_map); | |
312c056a PP |
1592 | if (!notif) { |
1593 | BT_LOGE("Cannot create event notification: " | |
1594 | "notit-addr=%p, ec-addr=%p, ec-name=\"%s\", " | |
1595 | "packet-addr=%p", | |
1596 | notit, notit->meta.event_class, | |
1597 | bt_event_class_get_name(notit->meta.event_class), | |
1598 | notit->packet); | |
1599 | goto error; | |
1600 | } | |
1601 | ||
1602 | goto end; | |
1603 | ||
1604 | error: | |
1605 | BT_PUT(notif); | |
1606 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1607 | ||
1608 | end: | |
1609 | BT_MOVE(notit->event_notif, notif); | |
1610 | return status; | |
1611 | } | |
1612 | ||
e98a2d6e | 1613 | static |
50842bdc PP |
1614 | enum bt_notif_iter_status after_event_header_state( |
1615 | struct bt_notif_iter *notit) | |
e98a2d6e | 1616 | { |
50842bdc | 1617 | enum bt_notif_iter_status status; |
e98a2d6e | 1618 | |
e98a2d6e | 1619 | status = set_current_event_class(notit); |
50842bdc | 1620 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
e98a2d6e PP |
1621 | goto end; |
1622 | } | |
1623 | ||
312c056a PP |
1624 | status = set_current_event_notification(notit); |
1625 | if (status != BT_NOTIF_ITER_STATUS_OK) { | |
1626 | goto end; | |
1627 | } | |
1628 | ||
1629 | notit->event = bt_notification_event_borrow_event(notit->event_notif); | |
1630 | BT_ASSERT(notit->event); | |
1631 | ||
1632 | if (notit->event_header_field) { | |
1633 | int ret; | |
1634 | ||
1635 | BT_ASSERT(notit->event); | |
1636 | ret = bt_event_move_header(notit->event, | |
1637 | notit->event_header_field); | |
1638 | ||
1639 | if (ret) { | |
1640 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1641 | goto end; | |
1642 | } | |
1643 | ||
1644 | notit->event_header_field = NULL; | |
1645 | ||
1646 | /* | |
1647 | * At this point notit->dscopes.stream_event_header has | |
1648 | * the same value as the event header field within | |
1649 | * notit->event. | |
1650 | */ | |
1651 | BT_ASSERT(bt_event_borrow_header(notit->event) == | |
1652 | notit->dscopes.stream_event_header); | |
1653 | } | |
1654 | ||
e98a2d6e PP |
1655 | notit->state = STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN; |
1656 | ||
1657 | end: | |
1658 | return status; | |
1659 | } | |
1660 | ||
1661 | static | |
50842bdc PP |
1662 | enum bt_notif_iter_status read_stream_event_context_begin_state( |
1663 | struct bt_notif_iter *notit) | |
e98a2d6e | 1664 | { |
50842bdc PP |
1665 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1666 | struct bt_field_type *stream_event_context_type; | |
e98a2d6e | 1667 | |
3dca2276 | 1668 | stream_event_context_type = |
d1e46835 | 1669 | bt_stream_class_borrow_event_context_field_type( |
3dca2276 | 1670 | notit->meta.stream_class); |
e98a2d6e | 1671 | if (!stream_event_context_type) { |
835b2d10 | 1672 | notit->state = STATE_DSCOPE_EVENT_CONTEXT_BEGIN; |
e98a2d6e PP |
1673 | goto end; |
1674 | } | |
1675 | ||
312c056a PP |
1676 | BT_ASSERT(!notit->dscopes.stream_event_context); |
1677 | notit->dscopes.stream_event_context = | |
1678 | bt_event_borrow_stream_event_context(notit->event); | |
1679 | BT_ASSERT(notit->dscopes.stream_event_context); | |
fdf0e7a0 PP |
1680 | BT_LOGV("Decoding stream event context field: " |
1681 | "notit-addr=%p, stream-class-addr=%p, " | |
1682 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1683 | "ft-addr=%p", | |
1684 | notit, notit->meta.stream_class, | |
50842bdc PP |
1685 | bt_stream_class_get_name(notit->meta.stream_class), |
1686 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 | 1687 | stream_event_context_type); |
e98a2d6e PP |
1688 | status = read_dscope_begin_state(notit, stream_event_context_type, |
1689 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN, | |
1690 | STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE, | |
312c056a | 1691 | notit->dscopes.stream_event_context); |
fdf0e7a0 PP |
1692 | if (status < 0) { |
1693 | BT_LOGW("Cannot decode stream event context field: " | |
1694 | "notit-addr=%p, stream-class-addr=%p, " | |
1695 | "stream-class-name=\"%s\", " | |
1696 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1697 | notit, notit->meta.stream_class, | |
50842bdc PP |
1698 | bt_stream_class_get_name(notit->meta.stream_class), |
1699 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 PP |
1700 | stream_event_context_type); |
1701 | } | |
e98a2d6e PP |
1702 | |
1703 | end: | |
e98a2d6e PP |
1704 | return status; |
1705 | } | |
1706 | ||
1707 | static | |
50842bdc PP |
1708 | enum bt_notif_iter_status read_stream_event_context_continue_state( |
1709 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1710 | { |
1711 | return read_dscope_continue_state(notit, | |
1712 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN); | |
1713 | } | |
1714 | ||
1715 | static | |
50842bdc PP |
1716 | enum bt_notif_iter_status read_event_context_begin_state( |
1717 | struct bt_notif_iter *notit) | |
e98a2d6e | 1718 | { |
50842bdc PP |
1719 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1720 | struct bt_field_type *event_context_type; | |
e98a2d6e | 1721 | |
d1e46835 | 1722 | event_context_type = bt_event_class_borrow_context_field_type( |
e98a2d6e PP |
1723 | notit->meta.event_class); |
1724 | if (!event_context_type) { | |
835b2d10 | 1725 | notit->state = STATE_DSCOPE_EVENT_PAYLOAD_BEGIN; |
e98a2d6e PP |
1726 | goto end; |
1727 | } | |
fdf0e7a0 | 1728 | |
312c056a PP |
1729 | BT_ASSERT(!notit->dscopes.event_context); |
1730 | notit->dscopes.event_context = bt_event_borrow_context(notit->event); | |
1731 | BT_ASSERT(notit->dscopes.event_context); | |
fdf0e7a0 PP |
1732 | BT_LOGV("Decoding event context field: " |
1733 | "notit-addr=%p, event-class-addr=%p, " | |
1734 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
1735 | "ft-addr=%p", | |
1736 | notit, notit->meta.event_class, | |
50842bdc PP |
1737 | bt_event_class_get_name(notit->meta.event_class), |
1738 | bt_event_class_get_id(notit->meta.event_class), | |
fdf0e7a0 | 1739 | event_context_type); |
e98a2d6e PP |
1740 | status = read_dscope_begin_state(notit, event_context_type, |
1741 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, | |
1742 | STATE_DSCOPE_EVENT_CONTEXT_CONTINUE, | |
312c056a | 1743 | notit->dscopes.event_context); |
fdf0e7a0 PP |
1744 | if (status < 0) { |
1745 | BT_LOGW("Cannot decode event context field: " | |
1746 | "notit-addr=%p, event-class-addr=%p, " | |
1747 | "event-class-name=\"%s\", " | |
1748 | "event-class-id=%" PRId64 ", ft-addr=%p", | |
1749 | notit, notit->meta.event_class, | |
50842bdc PP |
1750 | bt_event_class_get_name(notit->meta.event_class), |
1751 | bt_event_class_get_id(notit->meta.event_class), | |
fdf0e7a0 PP |
1752 | event_context_type); |
1753 | } | |
e98a2d6e PP |
1754 | |
1755 | end: | |
e98a2d6e PP |
1756 | return status; |
1757 | } | |
1758 | ||
1759 | static | |
50842bdc PP |
1760 | enum bt_notif_iter_status read_event_context_continue_state( |
1761 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1762 | { |
1763 | return read_dscope_continue_state(notit, | |
1764 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN); | |
1765 | } | |
1766 | ||
1767 | static | |
50842bdc PP |
1768 | enum bt_notif_iter_status read_event_payload_begin_state( |
1769 | struct bt_notif_iter *notit) | |
e98a2d6e | 1770 | { |
50842bdc PP |
1771 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1772 | struct bt_field_type *event_payload_type; | |
e98a2d6e | 1773 | |
d1e46835 | 1774 | event_payload_type = bt_event_class_borrow_payload_field_type( |
e98a2d6e PP |
1775 | notit->meta.event_class); |
1776 | if (!event_payload_type) { | |
835b2d10 | 1777 | notit->state = STATE_EMIT_NOTIF_EVENT; |
e98a2d6e PP |
1778 | goto end; |
1779 | } | |
1780 | ||
312c056a PP |
1781 | BT_ASSERT(!notit->dscopes.event_payload); |
1782 | notit->dscopes.event_payload = bt_event_borrow_payload(notit->event); | |
1783 | BT_ASSERT(notit->dscopes.event_payload); | |
fdf0e7a0 PP |
1784 | BT_LOGV("Decoding event payload field: " |
1785 | "notit-addr=%p, event-class-addr=%p, " | |
1786 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
1787 | "ft-addr=%p", | |
1788 | notit, notit->meta.event_class, | |
50842bdc PP |
1789 | bt_event_class_get_name(notit->meta.event_class), |
1790 | bt_event_class_get_id(notit->meta.event_class), | |
fdf0e7a0 | 1791 | event_payload_type); |
e98a2d6e PP |
1792 | status = read_dscope_begin_state(notit, event_payload_type, |
1793 | STATE_EMIT_NOTIF_EVENT, | |
1794 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
312c056a | 1795 | notit->dscopes.event_payload); |
fdf0e7a0 PP |
1796 | if (status < 0) { |
1797 | BT_LOGW("Cannot decode event payload field: " | |
1798 | "notit-addr=%p, event-class-addr=%p, " | |
1799 | "event-class-name=\"%s\", " | |
1800 | "event-class-id=%" PRId64 ", ft-addr=%p", | |
1801 | notit, notit->meta.event_class, | |
50842bdc PP |
1802 | bt_event_class_get_name(notit->meta.event_class), |
1803 | bt_event_class_get_id(notit->meta.event_class), | |
fdf0e7a0 PP |
1804 | event_payload_type); |
1805 | } | |
e98a2d6e PP |
1806 | |
1807 | end: | |
e98a2d6e PP |
1808 | return status; |
1809 | } | |
1810 | ||
1811 | static | |
50842bdc PP |
1812 | enum bt_notif_iter_status read_event_payload_continue_state( |
1813 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1814 | { |
1815 | return read_dscope_continue_state(notit, STATE_EMIT_NOTIF_EVENT); | |
1816 | } | |
1817 | ||
1818 | static | |
50842bdc PP |
1819 | enum bt_notif_iter_status skip_packet_padding_state( |
1820 | struct bt_notif_iter *notit) | |
e98a2d6e | 1821 | { |
50842bdc | 1822 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e PP |
1823 | size_t bits_to_skip; |
1824 | ||
f6ccaed9 | 1825 | BT_ASSERT(notit->cur_packet_size > 0); |
e98a2d6e PP |
1826 | bits_to_skip = notit->cur_packet_size - packet_at(notit); |
1827 | if (bits_to_skip == 0) { | |
1828 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1829 | goto end; | |
1830 | } else { | |
1831 | size_t bits_to_consume; | |
fdf0e7a0 PP |
1832 | |
1833 | BT_LOGV("Trying to skip %zu bits of padding: notit-addr=%p, size=%zu", | |
1834 | bits_to_skip, notit, bits_to_skip); | |
e98a2d6e | 1835 | status = buf_ensure_available_bits(notit); |
50842bdc | 1836 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
e98a2d6e PP |
1837 | goto end; |
1838 | } | |
1839 | ||
1840 | bits_to_consume = MIN(buf_available_bits(notit), bits_to_skip); | |
fdf0e7a0 PP |
1841 | BT_LOGV("Skipping %zu bits of padding: notit-addr=%p, size=%zu", |
1842 | bits_to_consume, notit, bits_to_consume); | |
e98a2d6e PP |
1843 | buf_consume_bits(notit, bits_to_consume); |
1844 | bits_to_skip = notit->cur_packet_size - packet_at(notit); | |
1845 | if (bits_to_skip == 0) { | |
1846 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1847 | goto end; | |
1848 | } | |
1849 | } | |
1850 | ||
1851 | end: | |
1852 | return status; | |
1853 | } | |
1854 | ||
1855 | static inline | |
50842bdc | 1856 | enum bt_notif_iter_status handle_state(struct bt_notif_iter *notit) |
e98a2d6e | 1857 | { |
50842bdc | 1858 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
fdf0e7a0 | 1859 | const enum state state = notit->state; |
e98a2d6e | 1860 | |
fdf0e7a0 PP |
1861 | BT_LOGV("Handling state: notit-addr=%p, state=%s", |
1862 | notit, state_string(state)); | |
e98a2d6e PP |
1863 | |
1864 | // TODO: optimalize! | |
fdf0e7a0 | 1865 | switch (state) { |
e98a2d6e PP |
1866 | case STATE_INIT: |
1867 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1868 | break; | |
1869 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
1870 | status = read_packet_header_begin_state(notit); | |
1871 | break; | |
1872 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
1873 | status = read_packet_header_continue_state(notit); | |
1874 | break; | |
1875 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
1876 | status = after_packet_header_state(notit); | |
1877 | break; | |
1878 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
1879 | status = read_packet_context_begin_state(notit); | |
1880 | break; | |
1881 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
1882 | status = read_packet_context_continue_state(notit); | |
1883 | break; | |
1884 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
1885 | status = after_packet_context_state(notit); | |
1886 | break; | |
f42867e2 PP |
1887 | case STATE_EMIT_NOTIF_NEW_STREAM: |
1888 | notit->state = STATE_EMIT_NOTIF_NEW_PACKET; | |
1889 | break; | |
e98a2d6e PP |
1890 | case STATE_EMIT_NOTIF_NEW_PACKET: |
1891 | notit->state = STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN; | |
1892 | break; | |
1893 | case STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN: | |
1894 | status = read_event_header_begin_state(notit); | |
1895 | break; | |
1896 | case STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE: | |
1897 | status = read_event_header_continue_state(notit); | |
1898 | break; | |
1899 | case STATE_AFTER_STREAM_EVENT_HEADER: | |
1900 | status = after_event_header_state(notit); | |
1901 | break; | |
1902 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN: | |
1903 | status = read_stream_event_context_begin_state(notit); | |
1904 | break; | |
1905 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE: | |
1906 | status = read_stream_event_context_continue_state(notit); | |
1907 | break; | |
1908 | case STATE_DSCOPE_EVENT_CONTEXT_BEGIN: | |
1909 | status = read_event_context_begin_state(notit); | |
1910 | break; | |
1911 | case STATE_DSCOPE_EVENT_CONTEXT_CONTINUE: | |
1912 | status = read_event_context_continue_state(notit); | |
1913 | break; | |
1914 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
1915 | status = read_event_payload_begin_state(notit); | |
1916 | break; | |
1917 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
1918 | status = read_event_payload_continue_state(notit); | |
1919 | break; | |
1920 | case STATE_EMIT_NOTIF_EVENT: | |
1921 | notit->state = STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN; | |
1922 | break; | |
1923 | case STATE_SKIP_PACKET_PADDING: | |
1924 | status = skip_packet_padding_state(notit); | |
1925 | break; | |
1926 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
1927 | notit->state = STATE_SKIP_PACKET_PADDING; | |
1928 | break; | |
fdf0e7a0 PP |
1929 | default: |
1930 | BT_LOGD("Unknown CTF plugin notification iterator state: " | |
1931 | "notit-addr=%p, state=%d", notit, notit->state); | |
1932 | abort(); | |
e98a2d6e PP |
1933 | } |
1934 | ||
fdf0e7a0 PP |
1935 | BT_LOGV("Handled state: notit-addr=%p, status=%s, " |
1936 | "prev-state=%s, cur-state=%s", | |
50842bdc | 1937 | notit, bt_notif_iter_status_string(status), |
fdf0e7a0 | 1938 | state_string(state), state_string(notit->state)); |
e98a2d6e PP |
1939 | return status; |
1940 | } | |
1941 | ||
2cf1d51e JG |
1942 | /** |
1943 | * Resets the internal state of a CTF notification iterator. | |
2cf1d51e | 1944 | */ |
f42867e2 | 1945 | BT_HIDDEN |
50842bdc | 1946 | void bt_notif_iter_reset(struct bt_notif_iter *notit) |
e98a2d6e | 1947 | { |
f6ccaed9 | 1948 | BT_ASSERT(notit); |
fdf0e7a0 | 1949 | BT_LOGD("Resetting notification iterator: addr=%p", notit); |
e98a2d6e | 1950 | stack_clear(notit->stack); |
d1e46835 PP |
1951 | notit->meta.stream_class = NULL; |
1952 | notit->meta.event_class = NULL; | |
e98a2d6e | 1953 | BT_PUT(notit->packet); |
af87daef | 1954 | BT_PUT(notit->stream); |
312c056a PP |
1955 | BT_PUT(notit->event_notif); |
1956 | release_all_dscopes(notit); | |
1957 | notit->cur_dscope_field = NULL; | |
1958 | ||
1959 | if (notit->packet_header_field) { | |
1960 | bt_packet_header_field_release(notit->packet_header_field); | |
1961 | notit->packet_header_field = NULL; | |
1962 | } | |
1963 | ||
1964 | if (notit->packet_context_field) { | |
1965 | bt_packet_context_field_release(notit->packet_context_field); | |
1966 | notit->packet_context_field = NULL; | |
1967 | } | |
1968 | ||
1969 | if (notit->event_header_field) { | |
1970 | bt_event_header_field_release(notit->event_header_field); | |
1971 | notit->event_header_field = NULL; | |
1972 | } | |
1973 | ||
e98a2d6e PP |
1974 | notit->buf.addr = NULL; |
1975 | notit->buf.sz = 0; | |
1976 | notit->buf.at = 0; | |
2b186c3e | 1977 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
1978 | notit->buf.packet_offset = 0; |
1979 | notit->state = STATE_INIT; | |
1980 | notit->cur_content_size = -1; | |
1981 | notit->cur_packet_size = -1; | |
9e0c8dbb | 1982 | notit->cur_packet_offset = -1; |
f42867e2 | 1983 | notit->stream_begin_emitted = false; |
312c056a | 1984 | notit->cur_timestamp_end = NULL; |
e98a2d6e PP |
1985 | } |
1986 | ||
2cf1d51e | 1987 | static |
50842bdc | 1988 | int bt_notif_iter_switch_packet(struct bt_notif_iter *notit) |
2cf1d51e JG |
1989 | { |
1990 | int ret = 0; | |
1991 | ||
115de887 PP |
1992 | /* |
1993 | * We don't put the stream class here because we need to make | |
1994 | * sure that all the packets processed by the same notification | |
1995 | * iterator refer to the same stream class (the first one). | |
1996 | */ | |
f6ccaed9 | 1997 | BT_ASSERT(notit); |
312c056a | 1998 | |
9e0c8dbb JG |
1999 | if (notit->cur_packet_size != -1) { |
2000 | notit->cur_packet_offset += notit->cur_packet_size; | |
2001 | } | |
312c056a | 2002 | |
9e0c8dbb JG |
2003 | BT_LOGV("Switching packet: notit-addr=%p, cur=%zu, " |
2004 | "packet-offset=%" PRId64, notit, notit->buf.at, | |
2005 | notit->cur_packet_offset); | |
2cf1d51e | 2006 | stack_clear(notit->stack); |
d1e46835 | 2007 | notit->meta.event_class = NULL; |
2cf1d51e | 2008 | BT_PUT(notit->packet); |
312c056a PP |
2009 | BT_PUT(notit->event_notif); |
2010 | notit->cur_timestamp_end = NULL; | |
2011 | release_all_dscopes(notit); | |
2012 | notit->cur_dscope_field = NULL; | |
2cf1d51e JG |
2013 | |
2014 | /* | |
2015 | * Adjust current buffer so that addr points to the beginning of the new | |
2016 | * packet. | |
2017 | */ | |
2018 | if (notit->buf.addr) { | |
2019 | size_t consumed_bytes = (size_t) (notit->buf.at / CHAR_BIT); | |
2020 | ||
2021 | /* Packets are assumed to start on a byte frontier. */ | |
2022 | if (notit->buf.at % CHAR_BIT) { | |
fdf0e7a0 PP |
2023 | BT_LOGW("Cannot switch packet: current position is not a multiple of 8: " |
2024 | "notit-addr=%p, cur=%zu", notit, notit->buf.at); | |
2cf1d51e JG |
2025 | ret = -1; |
2026 | goto end; | |
2027 | } | |
2028 | ||
2029 | notit->buf.addr += consumed_bytes; | |
2030 | notit->buf.sz -= consumed_bytes; | |
2031 | notit->buf.at = 0; | |
2032 | notit->buf.packet_offset = 0; | |
fdf0e7a0 PP |
2033 | BT_LOGV("Adjusted buffer: addr=%p, size=%zu", |
2034 | notit->buf.addr, notit->buf.sz); | |
2cf1d51e JG |
2035 | } |
2036 | ||
2037 | notit->cur_content_size = -1; | |
2038 | notit->cur_packet_size = -1; | |
5f870343 | 2039 | notit->cur_sc_field_path_cache = NULL; |
fdf0e7a0 | 2040 | |
2cf1d51e JG |
2041 | end: |
2042 | return ret; | |
2043 | } | |
2044 | ||
e98a2d6e | 2045 | static |
312c056a | 2046 | struct bt_field *borrow_next_field(struct bt_notif_iter *notit) |
e98a2d6e | 2047 | { |
50842bdc PP |
2048 | struct bt_field *next_field = NULL; |
2049 | struct bt_field *base_field; | |
2050 | struct bt_field_type *base_type; | |
e98a2d6e PP |
2051 | size_t index; |
2052 | ||
f6ccaed9 | 2053 | BT_ASSERT(!stack_empty(notit->stack)); |
e98a2d6e PP |
2054 | index = stack_top(notit->stack)->index; |
2055 | base_field = stack_top(notit->stack)->base; | |
f6ccaed9 | 2056 | BT_ASSERT(base_field); |
d1e46835 | 2057 | base_type = bt_field_borrow_type(base_field); |
f6ccaed9 | 2058 | BT_ASSERT(base_type); |
e98a2d6e | 2059 | |
50842bdc PP |
2060 | switch (bt_field_type_get_type_id(base_type)) { |
2061 | case BT_FIELD_TYPE_ID_STRUCT: | |
f42867e2 | 2062 | { |
312c056a | 2063 | next_field = bt_field_structure_borrow_field_by_index( |
e98a2d6e PP |
2064 | base_field, index); |
2065 | break; | |
f42867e2 | 2066 | } |
50842bdc | 2067 | case BT_FIELD_TYPE_ID_ARRAY: |
312c056a | 2068 | next_field = bt_field_array_borrow_field(base_field, index); |
e98a2d6e | 2069 | break; |
50842bdc | 2070 | case BT_FIELD_TYPE_ID_SEQUENCE: |
312c056a | 2071 | next_field = bt_field_sequence_borrow_field(base_field, index); |
e98a2d6e | 2072 | break; |
50842bdc | 2073 | case BT_FIELD_TYPE_ID_VARIANT: |
312c056a | 2074 | next_field = bt_field_variant_borrow_current_field(base_field); |
e98a2d6e PP |
2075 | break; |
2076 | default: | |
fdf0e7a0 PP |
2077 | BT_LOGF("Unknown base field type ID: " |
2078 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
2079 | notit, base_type, | |
3dca2276 | 2080 | bt_common_field_type_id_string( |
50842bdc | 2081 | bt_field_type_get_type_id(base_type))); |
0fbb9a9f | 2082 | abort(); |
e98a2d6e PP |
2083 | } |
2084 | ||
e98a2d6e PP |
2085 | return next_field; |
2086 | } | |
2087 | ||
c44c3e70 | 2088 | static |
312c056a PP |
2089 | void update_clock_state(uint64_t *state, struct bt_field *value_field, |
2090 | struct bt_field_type *value_type) | |
c44c3e70 | 2091 | { |
c44c3e70 JG |
2092 | uint64_t requested_new_value; |
2093 | uint64_t requested_new_value_mask; | |
2094 | uint64_t cur_value_masked; | |
2095 | int requested_new_value_size; | |
2096 | int ret; | |
2097 | ||
f6ccaed9 PP |
2098 | BT_ASSERT(value_type); |
2099 | BT_ASSERT(bt_field_type_is_integer(value_type)); | |
c44c3e70 | 2100 | requested_new_value_size = |
50842bdc | 2101 | bt_field_type_integer_get_size(value_type); |
f6ccaed9 | 2102 | BT_ASSERT(requested_new_value_size > 0); |
3dca2276 | 2103 | ret = bt_field_integer_unsigned_get_value(value_field, |
c44c3e70 | 2104 | &requested_new_value); |
f6ccaed9 | 2105 | BT_ASSERT(!ret); |
c44c3e70 JG |
2106 | |
2107 | /* | |
2108 | * Special case for a 64-bit new value, which is the limit | |
2109 | * of a clock value as of this version: overwrite the | |
2110 | * current value directly. | |
2111 | */ | |
2112 | if (requested_new_value_size == 64) { | |
2113 | *state = requested_new_value; | |
2114 | goto end; | |
2115 | } | |
2116 | ||
2117 | requested_new_value_mask = (1ULL << requested_new_value_size) - 1; | |
2118 | cur_value_masked = *state & requested_new_value_mask; | |
2119 | ||
2120 | if (requested_new_value < cur_value_masked) { | |
2121 | /* | |
2122 | * It looks like a wrap happened on the number of bits | |
2123 | * of the requested new value. Assume that the clock | |
2124 | * value wrapped only one time. | |
2125 | */ | |
2126 | *state += requested_new_value_mask + 1; | |
2127 | } | |
2128 | ||
2129 | /* Clear the low bits of the current clock value. */ | |
2130 | *state &= ~requested_new_value_mask; | |
2131 | ||
2132 | /* Set the low bits of the current clock value. */ | |
2133 | *state |= requested_new_value; | |
d1e46835 | 2134 | |
c44c3e70 | 2135 | end: |
fdf0e7a0 PP |
2136 | BT_LOGV("Updated clock's value from integer field's value: " |
2137 | "value=%" PRIu64, *state); | |
c44c3e70 JG |
2138 | } |
2139 | ||
2140 | static | |
50842bdc PP |
2141 | enum bt_btr_status update_clock(struct bt_notif_iter *notit, |
2142 | struct bt_field *int_field) | |
c44c3e70 | 2143 | { |
ac0c6bdd | 2144 | gboolean clock_class_found; |
8cb1fb66 | 2145 | uint64_t *clock_state = NULL; |
50842bdc PP |
2146 | struct bt_field_type *int_field_type = NULL; |
2147 | enum bt_btr_status ret = BT_BTR_STATUS_OK; | |
2148 | struct bt_clock_class *clock_class = NULL; | |
c44c3e70 | 2149 | |
d1e46835 | 2150 | int_field_type = bt_field_borrow_type(int_field); |
f6ccaed9 | 2151 | BT_ASSERT(int_field_type); |
312c056a PP |
2152 | |
2153 | if (bt_field_type_is_enumeration(int_field_type)) { | |
2154 | int_field_type = | |
2155 | bt_field_type_enumeration_borrow_container_field_type( | |
2156 | int_field_type); | |
2157 | } | |
2158 | ||
d1e46835 | 2159 | clock_class = bt_field_type_integer_borrow_mapped_clock_class( |
f45bfe88 | 2160 | int_field_type); |
ac0c6bdd | 2161 | if (likely(!clock_class)) { |
f45bfe88 | 2162 | goto end; |
c44c3e70 JG |
2163 | } |
2164 | ||
ac0c6bdd | 2165 | clock_class_found = g_hash_table_lookup_extended(notit->clock_states, |
fdf0e7a0 | 2166 | clock_class, NULL, (gpointer) &clock_state); |
8cb1fb66 | 2167 | if (!clock_class_found) { |
c44c3e70 JG |
2168 | clock_state = g_new0(uint64_t, 1); |
2169 | if (!clock_state) { | |
fdf0e7a0 | 2170 | BT_LOGE_STR("Failed to allocate a uint64_t."); |
50842bdc | 2171 | ret = BT_BTR_STATUS_ENOMEM; |
c44c3e70 JG |
2172 | goto end; |
2173 | } | |
fdf0e7a0 | 2174 | |
d1e46835 | 2175 | g_hash_table_insert(notit->clock_states, clock_class, |
fdf0e7a0 | 2176 | clock_state); |
c44c3e70 JG |
2177 | } |
2178 | ||
2179 | /* Update the clock's state. */ | |
fdf0e7a0 PP |
2180 | BT_LOGV("Updating notification iterator's clock's value from integer field: " |
2181 | "notit-addr=%p, clock-class-addr=%p, " | |
2182 | "clock-class-name=\"%s\", value=%" PRIu64, | |
2183 | notit, clock_class, | |
50842bdc | 2184 | bt_clock_class_get_name(clock_class), *clock_state); |
312c056a | 2185 | update_clock_state(clock_state, int_field, int_field_type); |
d1e46835 | 2186 | |
c44c3e70 | 2187 | end: |
c44c3e70 JG |
2188 | return ret; |
2189 | } | |
2190 | ||
e98a2d6e | 2191 | static |
50842bdc PP |
2192 | enum bt_btr_status btr_unsigned_int_common(uint64_t value, |
2193 | struct bt_field_type *type, void *data, | |
312c056a | 2194 | struct bt_field **out_field) |
50842bdc PP |
2195 | { |
2196 | enum bt_btr_status status = BT_BTR_STATUS_OK; | |
2197 | struct bt_field *field = NULL; | |
50842bdc | 2198 | struct bt_notif_iter *notit = data; |
e98a2d6e PP |
2199 | int ret; |
2200 | ||
fdf0e7a0 PP |
2201 | BT_LOGV("Common unsigned integer function called from BTR: " |
2202 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2203 | "ft-id=%s, value=%" PRIu64, | |
2204 | notit, notit->btr, type, | |
3dca2276 | 2205 | bt_common_field_type_id_string( |
50842bdc | 2206 | bt_field_type_get_type_id(type)), |
fdf0e7a0 | 2207 | value); |
312c056a | 2208 | field = borrow_next_field(notit); |
e98a2d6e | 2209 | if (!field) { |
312c056a | 2210 | BT_LOGW("Cannot borrow next field: notit-addr=%p", notit); |
50842bdc | 2211 | status = BT_BTR_STATUS_ERROR; |
312c056a | 2212 | goto end; |
e98a2d6e PP |
2213 | } |
2214 | ||
312c056a PP |
2215 | BT_ASSERT(bt_field_is_integer(field) || bt_field_is_enumeration(field)); |
2216 | ret = bt_field_integer_unsigned_set_value(field, value); | |
f6ccaed9 | 2217 | BT_ASSERT(ret == 0); |
e98a2d6e | 2218 | stack_top(notit->stack)->index++; |
312c056a | 2219 | *out_field = field; |
fdf0e7a0 | 2220 | |
312c056a | 2221 | end: |
e98a2d6e PP |
2222 | return status; |
2223 | } | |
2224 | ||
5f870343 | 2225 | static |
50842bdc PP |
2226 | enum bt_btr_status btr_timestamp_end_cb(void *value, |
2227 | struct bt_field_type *type, void *data) | |
5f870343 | 2228 | { |
50842bdc PP |
2229 | enum bt_btr_status status; |
2230 | struct bt_field *field = NULL; | |
2231 | struct bt_notif_iter *notit = data; | |
312c056a | 2232 | uint64_t uvalue = *((uint64_t *) value); |
5f870343 | 2233 | |
fdf0e7a0 PP |
2234 | BT_LOGV("`timestamp_end` unsigned integer function called from BTR: " |
2235 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2236 | "ft-id=%s", | |
2237 | notit, notit->btr, type, | |
3dca2276 | 2238 | bt_common_field_type_id_string( |
50842bdc | 2239 | bt_field_type_get_type_id(type))); |
5f870343 | 2240 | |
312c056a PP |
2241 | status = btr_unsigned_int_common(uvalue, type, data, &field); |
2242 | ||
2243 | /* Set as the current packet's end timestamp field */ | |
2244 | notit->cur_timestamp_end = field; | |
5f870343 JG |
2245 | return status; |
2246 | } | |
2247 | ||
e98a2d6e | 2248 | static |
50842bdc PP |
2249 | enum bt_btr_status btr_unsigned_int_cb(uint64_t value, |
2250 | struct bt_field_type *type, void *data) | |
5f870343 | 2251 | { |
50842bdc PP |
2252 | struct bt_notif_iter *notit = data; |
2253 | enum bt_btr_status status = BT_BTR_STATUS_OK; | |
2254 | struct bt_field *field = NULL; | |
5f870343 JG |
2255 | struct field_cb_override *override; |
2256 | ||
fdf0e7a0 PP |
2257 | BT_LOGV("Unsigned integer function called from BTR: " |
2258 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2259 | "ft-id=%s, value=%" PRIu64, | |
2260 | notit, notit->btr, type, | |
3dca2276 | 2261 | bt_common_field_type_id_string( |
50842bdc | 2262 | bt_field_type_get_type_id(type)), |
fdf0e7a0 PP |
2263 | value); |
2264 | override = g_hash_table_lookup(notit->field_overrides, type); | |
5f870343 | 2265 | if (unlikely(override)) { |
fdf0e7a0 | 2266 | /* Override function logs errors */ |
5f870343 JG |
2267 | status = override->func(&value, type, override->data); |
2268 | goto end; | |
2269 | } | |
2270 | ||
2271 | status = btr_unsigned_int_common(value, type, data, &field); | |
50842bdc | 2272 | if (status != BT_BTR_STATUS_OK) { |
fdf0e7a0 | 2273 | /* btr_unsigned_int_common() logs errors */ |
5f870343 JG |
2274 | goto end; |
2275 | } | |
2276 | ||
f45bfe88 | 2277 | status = update_clock(notit, field); |
312c056a | 2278 | |
5f870343 JG |
2279 | end: |
2280 | return status; | |
2281 | } | |
2282 | ||
2283 | static | |
50842bdc PP |
2284 | enum bt_btr_status btr_signed_int_cb(int64_t value, |
2285 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2286 | { |
50842bdc PP |
2287 | enum bt_btr_status status = BT_BTR_STATUS_OK; |
2288 | struct bt_field *field = NULL; | |
50842bdc | 2289 | struct bt_notif_iter *notit = data; |
e98a2d6e PP |
2290 | int ret; |
2291 | ||
fdf0e7a0 PP |
2292 | BT_LOGV("Signed integer function called from BTR: " |
2293 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2294 | "ft-id=%s, value=%" PRId64, | |
2295 | notit, notit->btr, type, | |
3dca2276 | 2296 | bt_common_field_type_id_string( |
50842bdc | 2297 | bt_field_type_get_type_id(type)), |
fdf0e7a0 | 2298 | value); |
312c056a | 2299 | field = borrow_next_field(notit); |
e98a2d6e | 2300 | if (!field) { |
312c056a | 2301 | BT_LOGW("Cannot borrow next field: notit-addr=%p", notit); |
50842bdc | 2302 | status = BT_BTR_STATUS_ERROR; |
312c056a | 2303 | goto end; |
e98a2d6e PP |
2304 | } |
2305 | ||
312c056a PP |
2306 | BT_ASSERT(bt_field_is_integer(field) || bt_field_is_enumeration(field)); |
2307 | ret = bt_field_integer_signed_set_value(field, value); | |
2308 | BT_ASSERT(ret == 0); | |
e98a2d6e | 2309 | stack_top(notit->stack)->index++; |
fdf0e7a0 | 2310 | |
312c056a | 2311 | end: |
e98a2d6e PP |
2312 | return status; |
2313 | } | |
2314 | ||
2315 | static | |
50842bdc PP |
2316 | enum bt_btr_status btr_floating_point_cb(double value, |
2317 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2318 | { |
50842bdc PP |
2319 | enum bt_btr_status status = BT_BTR_STATUS_OK; |
2320 | struct bt_field *field = NULL; | |
2321 | struct bt_notif_iter *notit = data; | |
e98a2d6e PP |
2322 | int ret; |
2323 | ||
fdf0e7a0 PP |
2324 | BT_LOGV("Floating point number function called from BTR: " |
2325 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2326 | "ft-id=%s, value=%f", | |
2327 | notit, notit->btr, type, | |
3dca2276 | 2328 | bt_common_field_type_id_string( |
50842bdc | 2329 | bt_field_type_get_type_id(type)), |
fdf0e7a0 | 2330 | value); |
312c056a | 2331 | field = borrow_next_field(notit); |
e98a2d6e | 2332 | if (!field) { |
312c056a | 2333 | BT_LOGW("Cannot borrow next field: notit-addr=%p", notit); |
50842bdc | 2334 | status = BT_BTR_STATUS_ERROR; |
e98a2d6e PP |
2335 | goto end; |
2336 | } | |
2337 | ||
50842bdc | 2338 | ret = bt_field_floating_point_set_value(field, value); |
f6ccaed9 | 2339 | BT_ASSERT(!ret); |
e98a2d6e PP |
2340 | stack_top(notit->stack)->index++; |
2341 | ||
2342 | end: | |
e98a2d6e PP |
2343 | return status; |
2344 | } | |
2345 | ||
2346 | static | |
50842bdc PP |
2347 | enum bt_btr_status btr_string_begin_cb( |
2348 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2349 | { |
50842bdc PP |
2350 | enum bt_btr_status status = BT_BTR_STATUS_OK; |
2351 | struct bt_field *field = NULL; | |
2352 | struct bt_notif_iter *notit = data; | |
e98a2d6e PP |
2353 | int ret; |
2354 | ||
fdf0e7a0 PP |
2355 | BT_LOGV("String (beginning) function called from BTR: " |
2356 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2357 | "ft-id=%s", | |
2358 | notit, notit->btr, type, | |
3dca2276 | 2359 | bt_common_field_type_id_string( |
50842bdc | 2360 | bt_field_type_get_type_id(type))); |
312c056a | 2361 | field = borrow_next_field(notit); |
e98a2d6e | 2362 | if (!field) { |
fdf0e7a0 | 2363 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
50842bdc | 2364 | status = BT_BTR_STATUS_ERROR; |
e98a2d6e PP |
2365 | goto end; |
2366 | } | |
2367 | ||
312c056a PP |
2368 | ret = bt_field_string_clear(field); |
2369 | BT_ASSERT(ret == 0); | |
2370 | ||
e98a2d6e PP |
2371 | /* |
2372 | * Push on stack. Not a compound type per se, but we know that only | |
2373 | * btr_string_cb() may be called between this call and a subsequent | |
2374 | * call to btr_string_end_cb(). | |
2375 | */ | |
2376 | ret = stack_push(notit->stack, field); | |
2377 | if (ret) { | |
fdf0e7a0 PP |
2378 | BT_LOGE("Cannot push string field on stack: " |
2379 | "notit-addr=%p, field-addr=%p", notit, field); | |
50842bdc | 2380 | status = BT_BTR_STATUS_ERROR; |
e98a2d6e PP |
2381 | goto end; |
2382 | } | |
2383 | ||
2384 | end: | |
e98a2d6e PP |
2385 | return status; |
2386 | } | |
2387 | ||
2388 | static | |
50842bdc PP |
2389 | enum bt_btr_status btr_string_cb(const char *value, |
2390 | size_t len, struct bt_field_type *type, void *data) | |
e98a2d6e | 2391 | { |
50842bdc PP |
2392 | enum bt_btr_status status = BT_BTR_STATUS_OK; |
2393 | struct bt_field *field = NULL; | |
2394 | struct bt_notif_iter *notit = data; | |
e98a2d6e PP |
2395 | int ret; |
2396 | ||
fdf0e7a0 PP |
2397 | BT_LOGV("String (substring) function called from BTR: " |
2398 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2399 | "ft-id=%s, string-length=%zu", | |
2400 | notit, notit->btr, type, | |
3dca2276 | 2401 | bt_common_field_type_id_string( |
50842bdc | 2402 | bt_field_type_get_type_id(type)), |
fdf0e7a0 | 2403 | len); |
e98a2d6e | 2404 | field = stack_top(notit->stack)->base; |
f6ccaed9 | 2405 | BT_ASSERT(field); |
e98a2d6e | 2406 | |
312c056a | 2407 | /* Append current substring */ |
50842bdc | 2408 | ret = bt_field_string_append_len(field, value, len); |
e98a2d6e | 2409 | if (ret) { |
fdf0e7a0 PP |
2410 | BT_LOGE("Cannot append substring to string field's value: " |
2411 | "notit-addr=%p, field-addr=%p, string-length=%zu, " | |
2412 | "ret=%d", notit, field, len, ret); | |
50842bdc | 2413 | status = BT_BTR_STATUS_ERROR; |
e98a2d6e PP |
2414 | goto end; |
2415 | } | |
2416 | ||
2417 | end: | |
2418 | return status; | |
2419 | } | |
2420 | ||
2421 | static | |
50842bdc PP |
2422 | enum bt_btr_status btr_string_end_cb( |
2423 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2424 | { |
50842bdc | 2425 | struct bt_notif_iter *notit = data; |
e98a2d6e | 2426 | |
fdf0e7a0 PP |
2427 | BT_LOGV("String (end) function called from BTR: " |
2428 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2429 | "ft-id=%s", | |
2430 | notit, notit->btr, type, | |
3dca2276 | 2431 | bt_common_field_type_id_string( |
50842bdc | 2432 | bt_field_type_get_type_id(type))); |
fdf0e7a0 | 2433 | |
e98a2d6e PP |
2434 | /* Pop string field */ |
2435 | stack_pop(notit->stack); | |
2436 | ||
2437 | /* Go to next field */ | |
2438 | stack_top(notit->stack)->index++; | |
50842bdc | 2439 | return BT_BTR_STATUS_OK; |
e98a2d6e PP |
2440 | } |
2441 | ||
50842bdc PP |
2442 | enum bt_btr_status btr_compound_begin_cb( |
2443 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2444 | { |
50842bdc PP |
2445 | enum bt_btr_status status = BT_BTR_STATUS_OK; |
2446 | struct bt_notif_iter *notit = data; | |
2447 | struct bt_field *field; | |
e98a2d6e PP |
2448 | int ret; |
2449 | ||
fdf0e7a0 PP |
2450 | BT_LOGV("Compound (beginning) function called from BTR: " |
2451 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2452 | "ft-id=%s", | |
2453 | notit, notit->btr, type, | |
3dca2276 | 2454 | bt_common_field_type_id_string( |
50842bdc | 2455 | bt_field_type_get_type_id(type))); |
fdf0e7a0 | 2456 | |
312c056a | 2457 | /* Borrow field */ |
e98a2d6e | 2458 | if (stack_empty(notit->stack)) { |
312c056a PP |
2459 | /* Root: already set by read_dscope_begin_state() */ |
2460 | field = notit->cur_dscope_field; | |
e98a2d6e | 2461 | } else { |
312c056a | 2462 | field = borrow_next_field(notit); |
fdf0e7a0 | 2463 | if (!field) { |
312c056a | 2464 | BT_LOGW("Cannot borrow next field: notit-addr=%p", notit); |
50842bdc | 2465 | status = BT_BTR_STATUS_ERROR; |
fdf0e7a0 PP |
2466 | goto end; |
2467 | } | |
e98a2d6e PP |
2468 | } |
2469 | ||
2470 | /* Push field */ | |
f6ccaed9 | 2471 | BT_ASSERT(field); |
e98a2d6e PP |
2472 | ret = stack_push(notit->stack, field); |
2473 | if (ret) { | |
fdf0e7a0 PP |
2474 | BT_LOGE("Cannot push compound field onto the stack: " |
2475 | "notit-addr=%p, ft-addr=%p, ft-id=%s, ret=%d", | |
2476 | notit, type, | |
3dca2276 | 2477 | bt_common_field_type_id_string( |
50842bdc | 2478 | bt_field_type_get_type_id(type)), |
fdf0e7a0 | 2479 | ret); |
50842bdc | 2480 | status = BT_BTR_STATUS_ERROR; |
e98a2d6e PP |
2481 | goto end; |
2482 | } | |
2483 | ||
2484 | end: | |
e98a2d6e PP |
2485 | return status; |
2486 | } | |
2487 | ||
50842bdc PP |
2488 | enum bt_btr_status btr_compound_end_cb( |
2489 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2490 | { |
50842bdc | 2491 | struct bt_notif_iter *notit = data; |
e98a2d6e | 2492 | |
fdf0e7a0 PP |
2493 | BT_LOGV("Compound (end) function called from BTR: " |
2494 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2495 | "ft-id=%s", | |
2496 | notit, notit->btr, type, | |
3dca2276 | 2497 | bt_common_field_type_id_string( |
50842bdc | 2498 | bt_field_type_get_type_id(type))); |
f6ccaed9 | 2499 | BT_ASSERT(!stack_empty(notit->stack)); |
e98a2d6e PP |
2500 | |
2501 | /* Pop stack */ | |
2502 | stack_pop(notit->stack); | |
2503 | ||
2504 | /* If the stack is not empty, increment the base's index */ | |
2505 | if (!stack_empty(notit->stack)) { | |
2506 | stack_top(notit->stack)->index++; | |
2507 | } | |
2508 | ||
50842bdc | 2509 | return BT_BTR_STATUS_OK; |
e98a2d6e PP |
2510 | } |
2511 | ||
2512 | static | |
50842bdc PP |
2513 | struct bt_field *resolve_field(struct bt_notif_iter *notit, |
2514 | struct bt_field_path *path) | |
e98a2d6e | 2515 | { |
50842bdc | 2516 | struct bt_field *field = NULL; |
e98a2d6e PP |
2517 | unsigned int i; |
2518 | ||
fdf0e7a0 | 2519 | if (BT_LOG_ON_VERBOSE) { |
50842bdc | 2520 | GString *gstr = bt_field_path_string(path); |
fdf0e7a0 PP |
2521 | |
2522 | BT_LOGV("Resolving field path: notit-addr=%p, field-path=\"%s\"", | |
2523 | notit, gstr ? gstr->str : NULL); | |
2524 | ||
2525 | if (gstr) { | |
2526 | g_string_free(gstr, TRUE); | |
2527 | } | |
2528 | } | |
2529 | ||
50842bdc PP |
2530 | switch (bt_field_path_get_root_scope(path)) { |
2531 | case BT_SCOPE_TRACE_PACKET_HEADER: | |
e98a2d6e PP |
2532 | field = notit->dscopes.trace_packet_header; |
2533 | break; | |
50842bdc | 2534 | case BT_SCOPE_STREAM_PACKET_CONTEXT: |
e98a2d6e PP |
2535 | field = notit->dscopes.stream_packet_context; |
2536 | break; | |
50842bdc | 2537 | case BT_SCOPE_STREAM_EVENT_HEADER: |
e98a2d6e PP |
2538 | field = notit->dscopes.stream_event_header; |
2539 | break; | |
50842bdc | 2540 | case BT_SCOPE_STREAM_EVENT_CONTEXT: |
e98a2d6e PP |
2541 | field = notit->dscopes.stream_event_context; |
2542 | break; | |
50842bdc | 2543 | case BT_SCOPE_EVENT_CONTEXT: |
e98a2d6e PP |
2544 | field = notit->dscopes.event_context; |
2545 | break; | |
50842bdc | 2546 | case BT_SCOPE_EVENT_FIELDS: |
e98a2d6e PP |
2547 | field = notit->dscopes.event_payload; |
2548 | break; | |
2549 | default: | |
fdf0e7a0 PP |
2550 | BT_LOGF("Cannot resolve field path: unknown scope: " |
2551 | "notit-addr=%p, root-scope=%s", | |
3dca2276 | 2552 | notit, bt_common_scope_string( |
50842bdc | 2553 | bt_field_path_get_root_scope(path))); |
fdf0e7a0 | 2554 | abort(); |
e98a2d6e PP |
2555 | } |
2556 | ||
2557 | if (!field) { | |
fdf0e7a0 PP |
2558 | BT_LOGW("Cannot resolve field path: root field not found: " |
2559 | "notit-addr=%p, root-scope=%s", | |
3dca2276 | 2560 | notit, bt_common_scope_string( |
50842bdc | 2561 | bt_field_path_get_root_scope(path))); |
e98a2d6e PP |
2562 | goto end; |
2563 | } | |
2564 | ||
50842bdc PP |
2565 | for (i = 0; i < bt_field_path_get_index_count(path); ++i) { |
2566 | struct bt_field *next_field = NULL; | |
2567 | struct bt_field_type *field_type; | |
2568 | int index = bt_field_path_get_index(path, i); | |
e98a2d6e | 2569 | |
d1e46835 | 2570 | field_type = bt_field_borrow_type(field); |
f6ccaed9 | 2571 | BT_ASSERT(field_type); |
e98a2d6e | 2572 | |
312c056a PP |
2573 | if (bt_field_type_is_structure(field_type)) { |
2574 | next_field = bt_field_structure_borrow_field_by_index( | |
e98a2d6e | 2575 | field, index); |
312c056a | 2576 | } else if (bt_field_type_is_variant(field_type)) { |
e98a2d6e | 2577 | next_field = |
312c056a | 2578 | bt_field_variant_borrow_current_field(field); |
e98a2d6e PP |
2579 | } |
2580 | ||
312c056a | 2581 | field = NULL; |
e98a2d6e PP |
2582 | |
2583 | if (!next_field) { | |
fdf0e7a0 PP |
2584 | BT_LOGW("Cannot find next field: " |
2585 | "notit-addr=%p, ft-addr=%p, ft-id=%s, index=%d", | |
2586 | notit, field_type, | |
3dca2276 | 2587 | bt_common_field_type_id_string( |
50842bdc | 2588 | bt_field_type_get_type_id(field_type)), |
fdf0e7a0 | 2589 | index); |
e98a2d6e PP |
2590 | goto end; |
2591 | } | |
2592 | ||
2593 | /* Move next field -> field */ | |
312c056a | 2594 | field = next_field; |
e98a2d6e PP |
2595 | } |
2596 | ||
2597 | end: | |
2598 | return field; | |
2599 | } | |
2600 | ||
2601 | static | |
50842bdc | 2602 | int64_t btr_get_sequence_length_cb(struct bt_field_type *type, void *data) |
e98a2d6e PP |
2603 | { |
2604 | int64_t ret = -1; | |
2605 | int iret; | |
50842bdc PP |
2606 | struct bt_field *seq_field; |
2607 | struct bt_field_path *field_path; | |
2608 | struct bt_notif_iter *notit = data; | |
2609 | struct bt_field *length_field = NULL; | |
e98a2d6e PP |
2610 | uint64_t length; |
2611 | ||
d1e46835 | 2612 | field_path = bt_field_type_sequence_borrow_length_field_path(type); |
f6ccaed9 | 2613 | BT_ASSERT(field_path); |
2cf1d51e JG |
2614 | length_field = resolve_field(notit, field_path); |
2615 | if (!length_field) { | |
fdf0e7a0 PP |
2616 | BT_LOGW("Cannot resolve sequence field type's length field path: " |
2617 | "notit-addr=%p, ft-addr=%p", | |
2618 | notit, type); | |
e98a2d6e PP |
2619 | goto end; |
2620 | } | |
2621 | ||
3dca2276 | 2622 | iret = bt_field_integer_unsigned_get_value(length_field, &length); |
e98a2d6e | 2623 | if (iret) { |
fdf0e7a0 PP |
2624 | BT_LOGE("Cannot get value of sequence length field: " |
2625 | "notit-addr=%p, field-addr=%p", | |
2626 | notit, length_field); | |
e98a2d6e PP |
2627 | goto end; |
2628 | } | |
2629 | ||
fdf0e7a0 | 2630 | seq_field = stack_top(notit->stack)->base; |
312c056a | 2631 | iret = bt_field_sequence_set_length(seq_field, length); |
2cf1d51e | 2632 | if (iret) { |
fdf0e7a0 PP |
2633 | BT_LOGE("Cannot set sequence field's length field: " |
2634 | "notit-addr=%p, seq-field-addr=%p, " | |
312c056a PP |
2635 | "length=%" PRIu64, |
2636 | notit, seq_field, length); | |
2cf1d51e JG |
2637 | goto end; |
2638 | } | |
fdf0e7a0 | 2639 | |
e98a2d6e PP |
2640 | ret = (int64_t) length; |
2641 | ||
2642 | end: | |
e98a2d6e PP |
2643 | return ret; |
2644 | } | |
2645 | ||
2646 | static | |
5ae32b51 | 2647 | struct bt_field_type *btr_borrow_variant_field_type_cb( |
50842bdc | 2648 | struct bt_field_type *type, void *data) |
e98a2d6e | 2649 | { |
312c056a | 2650 | int ret; |
50842bdc PP |
2651 | struct bt_field_path *path; |
2652 | struct bt_notif_iter *notit = data; | |
2653 | struct bt_field *var_field; | |
2654 | struct bt_field *tag_field = NULL; | |
312c056a PP |
2655 | struct bt_field_type *tag_ft = NULL; |
2656 | struct bt_field_type *tag_int_ft = NULL; | |
50842bdc PP |
2657 | struct bt_field *selected_field = NULL; |
2658 | struct bt_field_type *selected_field_type = NULL; | |
e98a2d6e | 2659 | |
d1e46835 | 2660 | path = bt_field_type_variant_borrow_tag_field_path(type); |
f6ccaed9 | 2661 | BT_ASSERT(path); |
e98a2d6e PP |
2662 | tag_field = resolve_field(notit, path); |
2663 | if (!tag_field) { | |
fdf0e7a0 PP |
2664 | BT_LOGW("Cannot resolve variant field type's tag field path: " |
2665 | "notit-addr=%p, ft-addr=%p", | |
2666 | notit, type); | |
e98a2d6e PP |
2667 | goto end; |
2668 | } | |
2669 | ||
2670 | /* | |
2671 | * We found the enumeration tag field instance which should be | |
2672 | * able to select a current field for this variant. This | |
2673 | * callback function we're in is called _after_ | |
2674 | * compound_begin(), so the current stack top's base field is | |
312c056a PP |
2675 | * the variant field in question. We set the variant field's tag |
2676 | * here and then get the current (selected) field thanks to this | |
2677 | * tag field's value. This current field will also provide us | |
2678 | * with its type. Then, this current field will remain the | |
2679 | * current selected one until the next callback function call | |
2680 | * which is used to fill it. | |
e98a2d6e | 2681 | */ |
fdf0e7a0 | 2682 | var_field = stack_top(notit->stack)->base; |
312c056a PP |
2683 | tag_ft = bt_field_borrow_type(tag_field); |
2684 | tag_int_ft = bt_field_type_enumeration_borrow_container_field_type( | |
2685 | tag_ft); | |
2686 | ||
2687 | if (bt_field_type_integer_is_signed(tag_int_ft)) { | |
2688 | int64_t tag_value; | |
2689 | ||
2690 | ret = bt_field_integer_signed_get_value(tag_field, &tag_value); | |
2691 | BT_ASSERT(ret == 0); | |
2692 | ret = bt_field_variant_set_tag_signed(var_field, tag_value); | |
2693 | BT_ASSERT(ret == 0); | |
2694 | } else { | |
2695 | uint64_t tag_value; | |
2696 | ||
2697 | ret = bt_field_integer_unsigned_get_value(tag_field, | |
2698 | &tag_value); | |
2699 | BT_ASSERT(ret == 0); | |
2700 | ret = bt_field_variant_set_tag_unsigned(var_field, tag_value); | |
2701 | BT_ASSERT(ret == 0); | |
2702 | } | |
2703 | ||
2704 | selected_field = bt_field_variant_borrow_current_field(var_field); | |
e98a2d6e | 2705 | if (!selected_field) { |
312c056a PP |
2706 | BT_LOGW("Cannot borrow variant field's current field: " |
2707 | "notit-addr=%p, var-field-addr=%p", | |
2708 | notit, var_field); | |
e98a2d6e PP |
2709 | goto end; |
2710 | } | |
2711 | ||
5ae32b51 | 2712 | selected_field_type = bt_field_borrow_type(selected_field); |
e98a2d6e PP |
2713 | |
2714 | end: | |
e98a2d6e PP |
2715 | return selected_field_type; |
2716 | } | |
2717 | ||
1556a1af | 2718 | static |
312c056a | 2719 | int set_event_clocks(struct bt_notif_iter *notit) |
1556a1af JG |
2720 | { |
2721 | int ret; | |
2722 | GHashTableIter iter; | |
50842bdc | 2723 | struct bt_clock_class *clock_class; |
1556a1af JG |
2724 | uint64_t *clock_state; |
2725 | ||
2726 | g_hash_table_iter_init(&iter, notit->clock_states); | |
2727 | ||
ac0c6bdd | 2728 | while (g_hash_table_iter_next(&iter, (gpointer) &clock_class, |
312c056a | 2729 | (gpointer) &clock_state)) { |
50842bdc | 2730 | struct bt_clock_value *clock_value; |
1556a1af | 2731 | |
312c056a PP |
2732 | clock_value = bt_event_borrow_clock_value(notit->event, |
2733 | clock_class); | |
1556a1af | 2734 | if (!clock_value) { |
312c056a | 2735 | BT_LOGE("Cannot borrow clock value from event with given clock class: " |
fdf0e7a0 PP |
2736 | "notit-addr=%p, clock-class-addr=%p, " |
2737 | "clock-class-name=\"%s\"", | |
2738 | notit, clock_class, | |
50842bdc | 2739 | bt_clock_class_get_name(clock_class)); |
1556a1af JG |
2740 | ret = -1; |
2741 | goto end; | |
2742 | } | |
af87daef | 2743 | |
312c056a PP |
2744 | ret = bt_clock_value_set_value(clock_value, *clock_state); |
2745 | BT_ASSERT(ret == 0); | |
af87daef PP |
2746 | } |
2747 | ||
312c056a | 2748 | ret = 0; |
af87daef | 2749 | end: |
af87daef PP |
2750 | return ret; |
2751 | } | |
2752 | ||
f42867e2 PP |
2753 | static |
2754 | void notify_new_stream(struct bt_notif_iter *notit, | |
2755 | struct bt_notification **notification) | |
2756 | { | |
312c056a | 2757 | enum bt_notif_iter_status status; |
f42867e2 | 2758 | struct bt_notification *ret = NULL; |
f42867e2 | 2759 | |
312c056a PP |
2760 | status = set_current_stream(notit); |
2761 | if (status != BT_NOTIF_ITER_STATUS_OK) { | |
2762 | BT_PUT(ret); | |
f42867e2 PP |
2763 | goto end; |
2764 | } | |
2765 | ||
2766 | BT_ASSERT(notit->stream); | |
5c563278 PP |
2767 | BT_ASSERT(notit->graph); |
2768 | ret = bt_notification_stream_begin_create(notit->graph, notit->stream); | |
f42867e2 PP |
2769 | if (!ret) { |
2770 | BT_LOGE("Cannot create stream beginning notification: " | |
2771 | "notit-addr=%p, stream-addr=%p", | |
2772 | notit, notit->stream); | |
2773 | return; | |
2774 | } | |
2775 | ||
2776 | end: | |
2777 | *notification = ret; | |
2778 | } | |
2779 | ||
2780 | static | |
2781 | void notify_end_of_stream(struct bt_notif_iter *notit, | |
2782 | struct bt_notification **notification) | |
2783 | { | |
2784 | struct bt_notification *ret; | |
2785 | ||
2786 | if (!notit->stream) { | |
2787 | BT_LOGE("Cannot create stream for stream notification: " | |
2788 | "notit-addr=%p", notit); | |
2789 | return; | |
2790 | } | |
2791 | ||
5c563278 PP |
2792 | BT_ASSERT(notit->graph); |
2793 | ret = bt_notification_stream_end_create(notit->graph, notit->stream); | |
f42867e2 PP |
2794 | if (!ret) { |
2795 | BT_LOGE("Cannot create stream beginning notification: " | |
2796 | "notit-addr=%p, stream-addr=%p", | |
2797 | notit, notit->stream); | |
2798 | return; | |
2799 | } | |
2800 | *notification = ret; | |
2801 | } | |
2802 | ||
78586d8a | 2803 | static |
50842bdc | 2804 | void notify_new_packet(struct bt_notif_iter *notit, |
78586d8a | 2805 | struct bt_notification **notification) |
e98a2d6e | 2806 | { |
312c056a PP |
2807 | int ret; |
2808 | enum bt_notif_iter_status status; | |
2809 | struct bt_notification *notif = NULL; | |
e98a2d6e | 2810 | |
312c056a PP |
2811 | status = set_current_packet(notit); |
2812 | if (status != BT_NOTIF_ITER_STATUS_OK) { | |
2813 | goto end; | |
e98a2d6e PP |
2814 | } |
2815 | ||
312c056a PP |
2816 | BT_ASSERT(notit->packet); |
2817 | ||
2818 | if (notit->packet_header_field) { | |
2819 | ret = bt_packet_move_header(notit->packet, | |
2820 | notit->packet_header_field); | |
2821 | if (ret) { | |
2822 | goto end; | |
2823 | } | |
2824 | ||
2825 | notit->packet_header_field = NULL; | |
2826 | ||
2827 | /* | |
2828 | * At this point notit->dscopes.trace_packet_header has | |
2829 | * the same value as the packet header field within | |
2830 | * notit->packet. | |
2831 | */ | |
2832 | BT_ASSERT(bt_packet_borrow_header(notit->packet) == | |
2833 | notit->dscopes.trace_packet_header); | |
2834 | } | |
2835 | ||
2836 | if (notit->packet_context_field) { | |
2837 | ret = bt_packet_move_context(notit->packet, | |
2838 | notit->packet_context_field); | |
2839 | if (ret) { | |
2840 | goto end; | |
2841 | } | |
2842 | ||
2843 | notit->packet_context_field = NULL; | |
2844 | ||
2845 | /* | |
2846 | * At this point notit->dscopes.trace_packet_header has | |
2847 | * the same value as the packet header field within | |
2848 | * notit->packet. | |
2849 | */ | |
2850 | BT_ASSERT(bt_packet_borrow_context(notit->packet) == | |
2851 | notit->dscopes.stream_packet_context); | |
2852 | } | |
2853 | ||
5c563278 PP |
2854 | BT_ASSERT(notit->graph); |
2855 | notif = bt_notification_packet_begin_create(notit->graph, | |
2856 | notit->packet); | |
312c056a | 2857 | if (!notif) { |
fdf0e7a0 PP |
2858 | BT_LOGE("Cannot create packet beginning notification: " |
2859 | "notit-addr=%p, packet-addr=%p", | |
2860 | notit, notit->packet); | |
78586d8a JG |
2861 | return; |
2862 | } | |
312c056a PP |
2863 | |
2864 | end: | |
2865 | *notification = notif; | |
e98a2d6e PP |
2866 | } |
2867 | ||
78586d8a | 2868 | static |
50842bdc | 2869 | void notify_end_of_packet(struct bt_notif_iter *notit, |
78586d8a | 2870 | struct bt_notification **notification) |
e98a2d6e | 2871 | { |
312c056a | 2872 | struct bt_notification *notif; |
e98a2d6e | 2873 | |
e98a2d6e | 2874 | if (!notit->packet) { |
78586d8a | 2875 | return; |
e98a2d6e PP |
2876 | } |
2877 | ||
5c563278 PP |
2878 | BT_ASSERT(notit->graph); |
2879 | notif = bt_notification_packet_end_create(notit->graph, notit->packet); | |
312c056a | 2880 | if (!notif) { |
fdf0e7a0 PP |
2881 | BT_LOGE("Cannot create packet end notification: " |
2882 | "notit-addr=%p, packet-addr=%p", | |
2883 | notit, notit->packet); | |
78586d8a JG |
2884 | return; |
2885 | } | |
e98a2d6e | 2886 | |
312c056a PP |
2887 | BT_PUT(notit->packet); |
2888 | *notification = notif; | |
e98a2d6e PP |
2889 | } |
2890 | ||
5f870343 | 2891 | static |
50842bdc | 2892 | void init_trace_field_path_cache(struct bt_trace *trace, |
5f870343 JG |
2893 | struct trace_field_path_cache *trace_field_path_cache) |
2894 | { | |
2895 | int stream_id = -1; | |
2896 | int stream_instance_id = -1; | |
2897 | int i, count; | |
50842bdc | 2898 | struct bt_field_type *packet_header = NULL; |
5f870343 | 2899 | |
d1e46835 | 2900 | packet_header = bt_trace_borrow_packet_header_field_type(trace); |
5f870343 JG |
2901 | if (!packet_header) { |
2902 | goto end; | |
2903 | } | |
2904 | ||
50842bdc | 2905 | if (!bt_field_type_is_structure(packet_header)) { |
5f870343 JG |
2906 | goto end; |
2907 | } | |
2908 | ||
50842bdc | 2909 | count = bt_field_type_structure_get_field_count(packet_header); |
f6ccaed9 | 2910 | BT_ASSERT(count >= 0); |
5f870343 JG |
2911 | |
2912 | for (i = 0; (i < count && (stream_id == -1 || stream_instance_id == -1)); i++) { | |
2913 | int ret; | |
2914 | const char *field_name; | |
2915 | ||
d1e46835 PP |
2916 | ret = bt_field_type_structure_borrow_field_by_index( |
2917 | packet_header, &field_name, NULL, i); | |
5f870343 | 2918 | if (ret) { |
fdf0e7a0 PP |
2919 | BT_LOGE("Cannot get structure field's field: " |
2920 | "field-addr=%p, index=%d", | |
2921 | packet_header, i); | |
5f870343 JG |
2922 | goto end; |
2923 | } | |
2924 | ||
2925 | if (stream_id == -1 && !strcmp(field_name, "stream_id")) { | |
2926 | stream_id = i; | |
2927 | } else if (stream_instance_id == -1 && | |
2928 | !strcmp(field_name, "stream_instance_id")) { | |
2929 | stream_instance_id = i; | |
2930 | } | |
2931 | } | |
fdf0e7a0 | 2932 | |
5f870343 JG |
2933 | end: |
2934 | trace_field_path_cache->stream_id = stream_id; | |
2935 | trace_field_path_cache->stream_instance_id = stream_instance_id; | |
5f870343 JG |
2936 | } |
2937 | ||
c44c3e70 | 2938 | BT_HIDDEN |
50842bdc | 2939 | struct bt_notif_iter *bt_notif_iter_create(struct bt_trace *trace, |
e98a2d6e | 2940 | size_t max_request_sz, |
50842bdc | 2941 | struct bt_notif_iter_medium_ops medops, void *data) |
e98a2d6e | 2942 | { |
50842bdc PP |
2943 | struct bt_notif_iter *notit = NULL; |
2944 | struct bt_btr_cbs cbs = { | |
e98a2d6e PP |
2945 | .types = { |
2946 | .signed_int = btr_signed_int_cb, | |
2947 | .unsigned_int = btr_unsigned_int_cb, | |
2948 | .floating_point = btr_floating_point_cb, | |
2949 | .string_begin = btr_string_begin_cb, | |
2950 | .string = btr_string_cb, | |
2951 | .string_end = btr_string_end_cb, | |
2952 | .compound_begin = btr_compound_begin_cb, | |
2953 | .compound_end = btr_compound_end_cb, | |
2954 | }, | |
2955 | .query = { | |
2956 | .get_sequence_length = btr_get_sequence_length_cb, | |
5ae32b51 | 2957 | .borrow_variant_field_type = btr_borrow_variant_field_type_cb, |
e98a2d6e PP |
2958 | }, |
2959 | }; | |
2960 | ||
f6ccaed9 PP |
2961 | BT_ASSERT(trace); |
2962 | BT_ASSERT(medops.request_bytes); | |
312c056a | 2963 | BT_ASSERT(medops.borrow_stream); |
fdf0e7a0 PP |
2964 | BT_LOGD("Creating CTF plugin notification iterator: " |
2965 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
2966 | "data=%p", | |
50842bdc PP |
2967 | trace, bt_trace_get_name(trace), max_request_sz, data); |
2968 | notit = g_new0(struct bt_notif_iter, 1); | |
e98a2d6e | 2969 | if (!notit) { |
fdf0e7a0 | 2970 | BT_LOGE_STR("Failed to allocate one CTF plugin notification iterator."); |
e98a2d6e PP |
2971 | goto end; |
2972 | } | |
c44c3e70 | 2973 | notit->clock_states = g_hash_table_new_full(g_direct_hash, |
d1e46835 | 2974 | g_direct_equal, NULL, g_free); |
c44c3e70 | 2975 | if (!notit->clock_states) { |
fdf0e7a0 | 2976 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
c44c3e70 JG |
2977 | goto error; |
2978 | } | |
d1e46835 | 2979 | notit->meta.trace = trace; |
e98a2d6e PP |
2980 | notit->medium.medops = medops; |
2981 | notit->medium.max_request_sz = max_request_sz; | |
2982 | notit->medium.data = data; | |
e98a2d6e PP |
2983 | notit->stack = stack_new(notit); |
2984 | if (!notit->stack) { | |
fdf0e7a0 | 2985 | BT_LOGE_STR("Failed to create field stack."); |
c44c3e70 | 2986 | goto error; |
e98a2d6e PP |
2987 | } |
2988 | ||
50842bdc | 2989 | notit->btr = bt_btr_create(cbs, notit); |
e98a2d6e | 2990 | if (!notit->btr) { |
fdf0e7a0 | 2991 | BT_LOGE_STR("Failed to create binary type reader (BTR)."); |
c44c3e70 | 2992 | goto error; |
e98a2d6e PP |
2993 | } |
2994 | ||
50842bdc | 2995 | bt_notif_iter_reset(notit); |
5f870343 JG |
2996 | init_trace_field_path_cache(trace, ¬it->trace_field_path_cache); |
2997 | notit->sc_field_path_caches = g_hash_table_new_full(g_direct_hash, | |
d1e46835 | 2998 | g_direct_equal, NULL, g_free); |
5f870343 | 2999 | if (!notit->sc_field_path_caches) { |
fdf0e7a0 | 3000 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
5f870343 JG |
3001 | goto error; |
3002 | } | |
3003 | ||
3004 | notit->field_overrides = g_hash_table_new_full(g_direct_hash, | |
d1e46835 | 3005 | g_direct_equal, NULL, g_free); |
5f870343 | 3006 | if (!notit->field_overrides) { |
fdf0e7a0 | 3007 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
5f870343 JG |
3008 | goto error; |
3009 | } | |
3010 | ||
fdf0e7a0 PP |
3011 | BT_LOGD("Created CTF plugin notification iterator: " |
3012 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
3013 | "data=%p, notit-addr=%p", | |
50842bdc | 3014 | trace, bt_trace_get_name(trace), max_request_sz, data, |
fdf0e7a0 | 3015 | notit); |
9e0c8dbb | 3016 | notit->cur_packet_offset = 0; |
fdf0e7a0 | 3017 | |
e98a2d6e PP |
3018 | end: |
3019 | return notit; | |
fdf0e7a0 | 3020 | |
c44c3e70 | 3021 | error: |
50842bdc | 3022 | bt_notif_iter_destroy(notit); |
c44c3e70 JG |
3023 | notit = NULL; |
3024 | goto end; | |
e98a2d6e PP |
3025 | } |
3026 | ||
50842bdc | 3027 | void bt_notif_iter_destroy(struct bt_notif_iter *notit) |
e98a2d6e | 3028 | { |
e98a2d6e | 3029 | BT_PUT(notit->packet); |
af87daef | 3030 | BT_PUT(notit->stream); |
312c056a PP |
3031 | BT_PUT(notit->meta.cc_prio_map); |
3032 | release_all_dscopes(notit); | |
e98a2d6e | 3033 | |
fdf0e7a0 PP |
3034 | BT_LOGD("Destroying CTF plugin notification iterator: addr=%p", notit); |
3035 | ||
e98a2d6e | 3036 | if (notit->stack) { |
fdf0e7a0 | 3037 | BT_LOGD_STR("Destroying field stack."); |
e98a2d6e PP |
3038 | stack_destroy(notit->stack); |
3039 | } | |
3040 | ||
3041 | if (notit->btr) { | |
fdf0e7a0 | 3042 | BT_LOGD("Destroying BTR: btr-addr=%p", notit->btr); |
50842bdc | 3043 | bt_btr_destroy(notit->btr); |
e98a2d6e PP |
3044 | } |
3045 | ||
c44c3e70 JG |
3046 | if (notit->clock_states) { |
3047 | g_hash_table_destroy(notit->clock_states); | |
3048 | } | |
5f870343 JG |
3049 | |
3050 | if (notit->sc_field_path_caches) { | |
3051 | g_hash_table_destroy(notit->sc_field_path_caches); | |
3052 | } | |
3053 | ||
3054 | if (notit->field_overrides) { | |
3055 | g_hash_table_destroy(notit->field_overrides); | |
3056 | } | |
fdf0e7a0 | 3057 | |
e98a2d6e PP |
3058 | g_free(notit); |
3059 | } | |
3060 | ||
50842bdc PP |
3061 | enum bt_notif_iter_status bt_notif_iter_get_next_notification( |
3062 | struct bt_notif_iter *notit, | |
0982a26d | 3063 | struct bt_clock_class_priority_map *cc_prio_map, |
5c563278 | 3064 | struct bt_graph *graph, |
78586d8a | 3065 | struct bt_notification **notification) |
e98a2d6e | 3066 | { |
312c056a | 3067 | int ret; |
50842bdc | 3068 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e | 3069 | |
f6ccaed9 PP |
3070 | BT_ASSERT(notit); |
3071 | BT_ASSERT(notification); | |
e98a2d6e | 3072 | |
5c563278 PP |
3073 | if (notit->state == STATE_DONE) { |
3074 | status = BT_NOTIF_ITER_STATUS_EOF; | |
3075 | goto end; | |
3076 | } | |
3077 | ||
312c056a PP |
3078 | if (cc_prio_map != notit->meta.cc_prio_map) { |
3079 | bt_put(notit->meta.cc_prio_map); | |
3080 | notit->meta.cc_prio_map = bt_get(cc_prio_map); | |
3081 | } | |
3082 | ||
5c563278 | 3083 | notit->graph = graph; |
f42867e2 | 3084 | |
fdf0e7a0 PP |
3085 | BT_LOGV("Getting next notification: notit-addr=%p, cc-prio-map-addr=%p", |
3086 | notit, cc_prio_map); | |
3087 | ||
e98a2d6e PP |
3088 | while (true) { |
3089 | status = handle_state(notit); | |
50842bdc PP |
3090 | if (status == BT_NOTIF_ITER_STATUS_AGAIN) { |
3091 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_AGAIN."); | |
7cdc2bab MD |
3092 | goto end; |
3093 | } | |
312c056a | 3094 | |
50842bdc PP |
3095 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
3096 | if (status == BT_NOTIF_ITER_STATUS_EOF) { | |
f42867e2 PP |
3097 | enum state next_state = notit->state; |
3098 | ||
50842bdc | 3099 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_EOF."); |
f42867e2 PP |
3100 | |
3101 | if (notit->packet) { | |
312c056a PP |
3102 | notify_end_of_packet(notit, |
3103 | notification); | |
f42867e2 | 3104 | } else { |
312c056a PP |
3105 | notify_end_of_stream(notit, |
3106 | notification); | |
f42867e2 PP |
3107 | next_state = STATE_DONE; |
3108 | } | |
3109 | ||
3110 | if (!*notification) { | |
3111 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
3112 | goto end; | |
3113 | } | |
3114 | ||
3115 | status = BT_NOTIF_ITER_STATUS_OK; | |
3116 | notit->state = next_state; | |
e98a2d6e | 3117 | } else { |
fdf0e7a0 PP |
3118 | BT_LOGW("Cannot handle state: " |
3119 | "notit-addr=%p, state=%s", | |
3120 | notit, state_string(notit->state)); | |
e98a2d6e | 3121 | } |
312c056a | 3122 | |
e98a2d6e PP |
3123 | goto end; |
3124 | } | |
3125 | ||
3126 | switch (notit->state) { | |
f42867e2 PP |
3127 | case STATE_EMIT_NOTIF_NEW_STREAM: |
3128 | /* notify_new_stream() logs errors */ | |
3129 | notify_new_stream(notit, notification); | |
3130 | if (!*notification) { | |
3131 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
3132 | } | |
3133 | notit->stream_begin_emitted = true; | |
3134 | goto end; | |
e98a2d6e | 3135 | case STATE_EMIT_NOTIF_NEW_PACKET: |
fdf0e7a0 | 3136 | /* notify_new_packet() logs errors */ |
e98a2d6e PP |
3137 | notify_new_packet(notit, notification); |
3138 | if (!*notification) { | |
50842bdc | 3139 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e | 3140 | } |
312c056a | 3141 | |
e98a2d6e PP |
3142 | goto end; |
3143 | case STATE_EMIT_NOTIF_EVENT: | |
312c056a PP |
3144 | BT_ASSERT(notit->event_notif); |
3145 | ret = set_event_clocks(notit); | |
3146 | if (ret) { | |
50842bdc | 3147 | status = BT_NOTIF_ITER_STATUS_ERROR; |
312c056a | 3148 | goto end; |
e98a2d6e | 3149 | } |
312c056a PP |
3150 | |
3151 | BT_MOVE(*notification, notit->event_notif); | |
e98a2d6e PP |
3152 | goto end; |
3153 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
5f870343 JG |
3154 | /* Update clock with timestamp_end field. */ |
3155 | if (notit->cur_timestamp_end) { | |
50842bdc | 3156 | enum bt_btr_status btr_status; |
5f870343 | 3157 | |
f45bfe88 PP |
3158 | btr_status = update_clock(notit, |
3159 | notit->cur_timestamp_end); | |
50842bdc | 3160 | if (btr_status != BT_BTR_STATUS_OK) { |
fdf0e7a0 PP |
3161 | BT_LOGW("Cannot update stream's clock value: " |
3162 | "notit-addr=%p", notit); | |
50842bdc | 3163 | status = BT_NOTIF_ITER_STATUS_ERROR; |
5f870343 JG |
3164 | goto end; |
3165 | } | |
3166 | } | |
3167 | ||
fdf0e7a0 | 3168 | /* notify_end_of_packet() logs errors */ |
e98a2d6e PP |
3169 | notify_end_of_packet(notit, notification); |
3170 | if (!*notification) { | |
50842bdc | 3171 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e | 3172 | } |
312c056a | 3173 | |
e98a2d6e PP |
3174 | goto end; |
3175 | default: | |
3176 | /* Non-emitting state: continue */ | |
3177 | break; | |
3178 | } | |
3179 | } | |
3180 | ||
3181 | end: | |
3182 | return status; | |
3183 | } | |
87187cbf PP |
3184 | |
3185 | BT_HIDDEN | |
312c056a | 3186 | enum bt_notif_iter_status bt_notif_iter_borrow_packet_header_context_fields( |
50842bdc PP |
3187 | struct bt_notif_iter *notit, |
3188 | struct bt_field **packet_header_field, | |
3189 | struct bt_field **packet_context_field) | |
87187cbf | 3190 | { |
9e0c8dbb | 3191 | int ret; |
50842bdc | 3192 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
87187cbf | 3193 | |
f6ccaed9 | 3194 | BT_ASSERT(notit); |
87187cbf PP |
3195 | |
3196 | if (notit->state == STATE_EMIT_NOTIF_NEW_PACKET) { | |
3197 | /* We're already there */ | |
3198 | goto set_fields; | |
3199 | } | |
3200 | ||
3201 | while (true) { | |
3202 | status = handle_state(notit); | |
50842bdc PP |
3203 | if (status == BT_NOTIF_ITER_STATUS_AGAIN) { |
3204 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_AGAIN."); | |
87187cbf PP |
3205 | goto end; |
3206 | } | |
50842bdc PP |
3207 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
3208 | if (status == BT_NOTIF_ITER_STATUS_EOF) { | |
3209 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_EOF."); | |
87187cbf | 3210 | } else { |
fdf0e7a0 PP |
3211 | BT_LOGW("Cannot handle state: " |
3212 | "notit-addr=%p, state=%s", | |
3213 | notit, state_string(notit->state)); | |
87187cbf PP |
3214 | } |
3215 | goto end; | |
3216 | } | |
3217 | ||
3218 | switch (notit->state) { | |
3219 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
3220 | /* | |
3221 | * Packet header and context fields are | |
3222 | * potentially decoded (or they don't exist). | |
3223 | */ | |
3224 | goto set_fields; | |
3225 | case STATE_INIT: | |
f42867e2 | 3226 | case STATE_EMIT_NOTIF_NEW_STREAM: |
87187cbf PP |
3227 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: |
3228 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
3229 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
3230 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
3231 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
3232 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
3233 | /* Non-emitting state: continue */ | |
3234 | break; | |
3235 | default: | |
3236 | /* | |
3237 | * We should never get past the | |
3238 | * STATE_EMIT_NOTIF_NEW_PACKET state. | |
3239 | */ | |
fdf0e7a0 PP |
3240 | BT_LOGF("Unexpected state: notit-addr=%p, state=%s", |
3241 | notit, state_string(notit->state)); | |
0fbb9a9f | 3242 | abort(); |
87187cbf PP |
3243 | } |
3244 | } | |
3245 | ||
3246 | set_fields: | |
312c056a PP |
3247 | ret = set_current_packet_content_sizes(notit); |
3248 | if (ret) { | |
3249 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
3250 | goto end; | |
3251 | } | |
3252 | ||
87187cbf | 3253 | if (packet_header_field) { |
312c056a | 3254 | *packet_header_field = notit->dscopes.trace_packet_header; |
87187cbf PP |
3255 | } |
3256 | ||
3257 | if (packet_context_field) { | |
312c056a | 3258 | *packet_context_field = notit->dscopes.stream_packet_context; |
87187cbf PP |
3259 | } |
3260 | ||
3261 | end: | |
3262 | return status; | |
3263 | } | |
6de92955 PP |
3264 | |
3265 | BT_HIDDEN | |
50842bdc | 3266 | void bt_notif_iter_set_medops_data(struct bt_notif_iter *notit, |
6de92955 PP |
3267 | void *medops_data) |
3268 | { | |
f6ccaed9 | 3269 | BT_ASSERT(notit); |
6de92955 PP |
3270 | notit->medium.data = medops_data; |
3271 | } | |
9e0c8dbb JG |
3272 | |
3273 | BT_HIDDEN | |
50842bdc PP |
3274 | enum bt_notif_iter_status bt_notif_iter_seek( |
3275 | struct bt_notif_iter *notit, off_t offset) | |
9e0c8dbb | 3276 | { |
50842bdc PP |
3277 | enum bt_notif_iter_status ret = BT_NOTIF_ITER_STATUS_OK; |
3278 | enum bt_notif_iter_medium_status medium_status; | |
9e0c8dbb | 3279 | |
f6ccaed9 | 3280 | BT_ASSERT(notit); |
9e0c8dbb JG |
3281 | if (offset < 0) { |
3282 | BT_LOGE("Cannot seek to negative offset: offset=%jd", offset); | |
50842bdc | 3283 | ret = BT_NOTIF_ITER_STATUS_INVAL; |
9e0c8dbb JG |
3284 | goto end; |
3285 | } | |
3286 | ||
3287 | if (!notit->medium.medops.seek) { | |
50842bdc | 3288 | ret = BT_NOTIF_ITER_STATUS_UNSUPPORTED; |
9e0c8dbb JG |
3289 | BT_LOGD("Aborting seek as the iterator's underlying media does not implement seek support."); |
3290 | goto end; | |
3291 | } | |
3292 | ||
3293 | medium_status = notit->medium.medops.seek( | |
50842bdc | 3294 | BT_NOTIF_ITER_SEEK_WHENCE_SET, offset, |
9e0c8dbb | 3295 | notit->medium.data); |
50842bdc PP |
3296 | if (medium_status != BT_NOTIF_ITER_MEDIUM_STATUS_OK) { |
3297 | if (medium_status == BT_NOTIF_ITER_MEDIUM_STATUS_EOF) { | |
3298 | ret = BT_NOTIF_ITER_STATUS_EOF; | |
9e0c8dbb | 3299 | } else { |
50842bdc | 3300 | ret = BT_NOTIF_ITER_STATUS_ERROR; |
9e0c8dbb JG |
3301 | goto end; |
3302 | } | |
3303 | } | |
3304 | ||
50842bdc | 3305 | bt_notif_iter_reset(notit); |
9e0c8dbb JG |
3306 | notit->cur_packet_offset = offset; |
3307 | end: | |
3308 | return ret; | |
3309 | } | |
3310 | ||
3311 | BT_HIDDEN | |
50842bdc PP |
3312 | off_t bt_notif_iter_get_current_packet_offset( |
3313 | struct bt_notif_iter *notit) | |
9e0c8dbb | 3314 | { |
f6ccaed9 | 3315 | BT_ASSERT(notit); |
9e0c8dbb JG |
3316 | return notit->cur_packet_offset; |
3317 | } | |
3318 | ||
3319 | BT_HIDDEN | |
50842bdc PP |
3320 | off_t bt_notif_iter_get_current_packet_size( |
3321 | struct bt_notif_iter *notit) | |
9e0c8dbb | 3322 | { |
f6ccaed9 | 3323 | BT_ASSERT(notit); |
9e0c8dbb JG |
3324 | return notit->cur_packet_size; |
3325 | } |