Commit | Line | Data |
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e98a2d6e PP |
1 | /* |
2 | * Babeltrace - CTF notification iterator | |
06a626b8 | 3 | * |
e98a2d6e PP |
4 | * Copyright (c) 2015-2016 EfficiOS Inc. and Linux Foundation |
5 | * Copyright (c) 2015-2016 Philippe Proulx <pproulx@efficios.com> | |
6 | * | |
7 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
8 | * of this software and associated documentation files (the "Software"), to deal | |
9 | * in the Software without restriction, including without limitation the rights | |
10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
11 | * copies of the Software, and to permit persons to whom the Software is | |
12 | * furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice shall be included in | |
15 | * all copies or substantial portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
20 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
23 | * SOFTWARE. | |
24 | */ | |
25 | ||
fdf0e7a0 PP |
26 | #define BT_LOG_TAG "PLUGIN-CTF-NOTIF-ITER" |
27 | #include "logging.h" | |
28 | ||
e98a2d6e PP |
29 | #include <stdint.h> |
30 | #include <inttypes.h> | |
31 | #include <stdio.h> | |
32 | #include <stddef.h> | |
33 | #include <stdbool.h> | |
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 | * | |
57 | * Field is owned by this. | |
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 | ||
e98a2d6e PP |
135 | /* |
136 | * Current dynamic scope field pointer. | |
137 | * | |
138 | * This is set when a dynamic scope field is first created by | |
139 | * btr_compound_begin_cb(). It points to one of the fields in | |
140 | * dscopes below. | |
141 | */ | |
50842bdc | 142 | struct bt_field **cur_dscope_field; |
e98a2d6e PP |
143 | |
144 | /* Trace and classes (owned by this) */ | |
145 | struct { | |
50842bdc PP |
146 | struct bt_trace *trace; |
147 | struct bt_stream_class *stream_class; | |
148 | struct bt_event_class *event_class; | |
e98a2d6e PP |
149 | } meta; |
150 | ||
151 | /* Current packet (NULL if not created yet) */ | |
50842bdc | 152 | struct bt_packet *packet; |
e98a2d6e | 153 | |
af87daef | 154 | /* Current stream (NULL if not set yet) */ |
50842bdc | 155 | struct bt_stream *stream; |
af87daef | 156 | |
5f870343 JG |
157 | /* |
158 | * Current timestamp_end field (to consider before switching packets). | |
159 | */ | |
50842bdc | 160 | struct bt_field *cur_timestamp_end; |
5f870343 | 161 | |
e98a2d6e PP |
162 | /* Database of current dynamic scopes (owned by this) */ |
163 | struct { | |
50842bdc PP |
164 | struct bt_field *trace_packet_header; |
165 | struct bt_field *stream_packet_context; | |
166 | struct bt_field *stream_event_header; | |
167 | struct bt_field *stream_event_context; | |
168 | struct bt_field *event_context; | |
169 | struct bt_field *event_payload; | |
e98a2d6e PP |
170 | } dscopes; |
171 | ||
5f870343 JG |
172 | /* |
173 | * Special field overrides. | |
174 | * | |
175 | * Overrides are used to implement the behaviours of special fields such | |
176 | * as "timestamp_end" (which must be ignored until the end of the | |
177 | * packet), "id" (event id) which can be present multiple times and must | |
178 | * be updated multiple time. | |
179 | * | |
180 | * This should be used to implement the behaviour of integer fields | |
181 | * mapped to clocks and other "tagged" fields (in CTF 2). | |
182 | * | |
50842bdc | 183 | * bt_field_type to struct field_cb_override |
5f870343 JG |
184 | */ |
185 | GHashTable *field_overrides; | |
186 | ||
e98a2d6e PP |
187 | /* Current state */ |
188 | enum state state; | |
189 | ||
2cf1d51e | 190 | /* Current medium buffer data */ |
e98a2d6e PP |
191 | struct { |
192 | /* Last address provided by medium */ | |
193 | const uint8_t *addr; | |
194 | ||
195 | /* Buffer size provided by medium (bytes) */ | |
196 | size_t sz; | |
197 | ||
198 | /* Offset within whole packet of addr (bits) */ | |
199 | size_t packet_offset; | |
200 | ||
201 | /* Current position from addr (bits) */ | |
202 | size_t at; | |
174e773b PP |
203 | |
204 | /* Position of the last event header from addr (bits) */ | |
205 | size_t last_eh_at; | |
e98a2d6e PP |
206 | } buf; |
207 | ||
208 | /* Binary type reader */ | |
50842bdc | 209 | struct bt_btr *btr; |
e98a2d6e | 210 | |
2cf1d51e | 211 | /* Current medium data */ |
e98a2d6e | 212 | struct { |
50842bdc | 213 | struct bt_notif_iter_medium_ops medops; |
e98a2d6e PP |
214 | size_t max_request_sz; |
215 | void *data; | |
216 | } medium; | |
217 | ||
f42867e2 PP |
218 | /* Stream beginning was emitted */ |
219 | bool stream_begin_emitted; | |
220 | ||
e98a2d6e | 221 | /* Current packet size (bits) (-1 if unknown) */ |
e7a4393b | 222 | int64_t cur_packet_size; |
e98a2d6e PP |
223 | |
224 | /* Current content size (bits) (-1 if unknown) */ | |
e7a4393b | 225 | int64_t cur_content_size; |
c44c3e70 | 226 | |
9e0c8dbb JG |
227 | /* |
228 | * Offset, in the underlying media, of the current packet's start | |
229 | * (-1 if unknown). | |
230 | */ | |
231 | off_t cur_packet_offset; | |
232 | ||
50842bdc | 233 | /* bt_clock_class to uint64_t. */ |
c44c3e70 | 234 | GHashTable *clock_states; |
5f870343 JG |
235 | |
236 | /* | |
237 | * Cache of the trace-constant field paths (event header type) | |
238 | * associated to the current trace. | |
239 | */ | |
240 | struct trace_field_path_cache trace_field_path_cache; | |
241 | ||
242 | /* | |
243 | * Field path cache associated with the current stream class. | |
244 | * Ownership of this structure belongs to the field_path_caches HT. | |
245 | */ | |
246 | struct stream_class_field_path_cache *cur_sc_field_path_cache; | |
247 | ||
50842bdc | 248 | /* bt_stream_class to struct stream_class_field_path_cache. */ |
5f870343 | 249 | GHashTable *sc_field_path_caches; |
e98a2d6e PP |
250 | }; |
251 | ||
fdf0e7a0 PP |
252 | static inline |
253 | const char *state_string(enum state state) | |
254 | { | |
255 | switch (state) { | |
256 | case STATE_INIT: | |
257 | return "STATE_INIT"; | |
258 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
259 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN"; | |
260 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
261 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE"; | |
262 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
263 | return "STATE_AFTER_TRACE_PACKET_HEADER"; | |
264 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
265 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN"; | |
266 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
267 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE"; | |
268 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
269 | return "STATE_AFTER_STREAM_PACKET_CONTEXT"; | |
270 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
271 | return "STATE_EMIT_NOTIF_NEW_PACKET"; | |
f42867e2 PP |
272 | case STATE_EMIT_NOTIF_NEW_STREAM: |
273 | return "STATE_EMIT_NOTIF_NEW_STREAM"; | |
fdf0e7a0 PP |
274 | case STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN: |
275 | return "STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN"; | |
276 | case STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE: | |
277 | return "STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE"; | |
278 | case STATE_AFTER_STREAM_EVENT_HEADER: | |
279 | return "STATE_AFTER_STREAM_EVENT_HEADER"; | |
280 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN: | |
281 | return "STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN"; | |
282 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE: | |
283 | return "STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE"; | |
284 | case STATE_DSCOPE_EVENT_CONTEXT_BEGIN: | |
285 | return "STATE_DSCOPE_EVENT_CONTEXT_BEGIN"; | |
286 | case STATE_DSCOPE_EVENT_CONTEXT_CONTINUE: | |
287 | return "STATE_DSCOPE_EVENT_CONTEXT_CONTINUE"; | |
288 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
289 | return "STATE_DSCOPE_EVENT_PAYLOAD_BEGIN"; | |
290 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
291 | return "STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE"; | |
292 | case STATE_EMIT_NOTIF_EVENT: | |
293 | return "STATE_EMIT_NOTIF_EVENT"; | |
294 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
295 | return "STATE_EMIT_NOTIF_END_OF_PACKET"; | |
f42867e2 PP |
296 | case STATE_DONE: |
297 | return "STATE_DONE"; | |
fdf0e7a0 PP |
298 | case STATE_SKIP_PACKET_PADDING: |
299 | return "STATE_SKIP_PACKET_PADDING"; | |
300 | default: | |
301 | return "(unknown)"; | |
302 | } | |
303 | } | |
304 | ||
2cf1d51e | 305 | static |
50842bdc | 306 | int bt_notif_iter_switch_packet(struct bt_notif_iter *notit); |
2cf1d51e | 307 | |
5f870343 | 308 | static |
50842bdc PP |
309 | enum bt_btr_status btr_timestamp_end_cb(void *value, |
310 | struct bt_field_type *type, void *data); | |
5f870343 | 311 | |
e98a2d6e PP |
312 | static |
313 | void stack_entry_free_func(gpointer data) | |
314 | { | |
315 | struct stack_entry *entry = data; | |
316 | ||
317 | bt_put(entry->base); | |
318 | g_free(entry); | |
319 | } | |
320 | ||
321 | static | |
50842bdc | 322 | struct stack *stack_new(struct bt_notif_iter *notit) |
e98a2d6e PP |
323 | { |
324 | struct stack *stack = NULL; | |
325 | ||
326 | stack = g_new0(struct stack, 1); | |
327 | if (!stack) { | |
fdf0e7a0 | 328 | BT_LOGE_STR("Failed to allocate one stack."); |
e98a2d6e PP |
329 | goto error; |
330 | } | |
331 | ||
332 | stack->entries = g_ptr_array_new_with_free_func(stack_entry_free_func); | |
333 | if (!stack->entries) { | |
fdf0e7a0 | 334 | BT_LOGE_STR("Failed to allocate a GPtrArray."); |
e98a2d6e PP |
335 | goto error; |
336 | } | |
337 | ||
fdf0e7a0 | 338 | BT_LOGD("Created stack: notit-addr=%p, stack-addr=%p", notit, stack); |
e98a2d6e | 339 | return stack; |
fdf0e7a0 | 340 | |
e98a2d6e PP |
341 | error: |
342 | g_free(stack); | |
e98a2d6e PP |
343 | return NULL; |
344 | } | |
345 | ||
346 | static | |
347 | void stack_destroy(struct stack *stack) | |
348 | { | |
f6ccaed9 | 349 | BT_ASSERT(stack); |
fdf0e7a0 | 350 | BT_LOGD("Destroying stack: addr=%p", stack); |
e98a2d6e PP |
351 | g_ptr_array_free(stack->entries, TRUE); |
352 | g_free(stack); | |
353 | } | |
354 | ||
355 | static | |
50842bdc | 356 | int stack_push(struct stack *stack, struct bt_field *base) |
e98a2d6e PP |
357 | { |
358 | int ret = 0; | |
359 | struct stack_entry *entry; | |
e98a2d6e | 360 | |
f6ccaed9 PP |
361 | BT_ASSERT(stack); |
362 | BT_ASSERT(base); | |
fdf0e7a0 PP |
363 | BT_LOGV("Pushing base field on stack: stack-addr=%p, " |
364 | "stack-size-before=%u, stack-size-after=%u", | |
365 | stack, stack->entries->len, stack->entries->len + 1); | |
e98a2d6e PP |
366 | entry = g_new0(struct stack_entry, 1); |
367 | if (!entry) { | |
fdf0e7a0 | 368 | BT_LOGE_STR("Failed to allocate one stack entry."); |
e98a2d6e PP |
369 | ret = -1; |
370 | goto end; | |
371 | } | |
372 | ||
373 | entry->base = bt_get(base); | |
374 | g_ptr_array_add(stack->entries, entry); | |
375 | ||
376 | end: | |
377 | return ret; | |
378 | } | |
379 | ||
380 | static inline | |
381 | unsigned int stack_size(struct stack *stack) | |
382 | { | |
f6ccaed9 | 383 | BT_ASSERT(stack); |
e98a2d6e PP |
384 | |
385 | return stack->entries->len; | |
386 | } | |
387 | ||
388 | static | |
389 | void stack_pop(struct stack *stack) | |
390 | { | |
f6ccaed9 PP |
391 | BT_ASSERT(stack); |
392 | BT_ASSERT(stack_size(stack)); | |
fdf0e7a0 PP |
393 | BT_LOGV("Popping from stack: " |
394 | "stack-addr=%p, stack-size-before=%u, stack-size-after=%u", | |
395 | stack, stack->entries->len, stack->entries->len - 1); | |
e98a2d6e PP |
396 | g_ptr_array_remove_index(stack->entries, stack->entries->len - 1); |
397 | } | |
398 | ||
399 | static inline | |
400 | struct stack_entry *stack_top(struct stack *stack) | |
401 | { | |
f6ccaed9 PP |
402 | BT_ASSERT(stack); |
403 | BT_ASSERT(stack_size(stack)); | |
e98a2d6e PP |
404 | |
405 | return g_ptr_array_index(stack->entries, stack->entries->len - 1); | |
406 | } | |
407 | ||
408 | static inline | |
409 | bool stack_empty(struct stack *stack) | |
410 | { | |
411 | return stack_size(stack) == 0; | |
412 | } | |
413 | ||
414 | static | |
415 | void stack_clear(struct stack *stack) | |
416 | { | |
f6ccaed9 | 417 | BT_ASSERT(stack); |
e98a2d6e PP |
418 | |
419 | if (!stack_empty(stack)) { | |
fdf0e7a0 PP |
420 | BT_LOGV("Clearing stack: stack-addr=%p, stack-size=%u", |
421 | stack, stack->entries->len); | |
e98a2d6e PP |
422 | g_ptr_array_remove_range(stack->entries, 0, stack_size(stack)); |
423 | } | |
424 | ||
f6ccaed9 | 425 | BT_ASSERT(stack_empty(stack)); |
e98a2d6e PP |
426 | } |
427 | ||
428 | static inline | |
50842bdc PP |
429 | enum bt_notif_iter_status notif_iter_status_from_m_status( |
430 | enum bt_notif_iter_medium_status m_status) | |
e98a2d6e | 431 | { |
dc77b521 | 432 | return (int) m_status; |
e98a2d6e PP |
433 | } |
434 | ||
435 | static inline | |
50842bdc | 436 | size_t buf_size_bits(struct bt_notif_iter *notit) |
e98a2d6e | 437 | { |
fdf0e7a0 | 438 | return notit->buf.sz * 8; |
e98a2d6e PP |
439 | } |
440 | ||
441 | static inline | |
50842bdc | 442 | size_t buf_available_bits(struct bt_notif_iter *notit) |
e98a2d6e PP |
443 | { |
444 | return buf_size_bits(notit) - notit->buf.at; | |
445 | } | |
446 | ||
447 | static inline | |
50842bdc | 448 | size_t packet_at(struct bt_notif_iter *notit) |
e98a2d6e PP |
449 | { |
450 | return notit->buf.packet_offset + notit->buf.at; | |
451 | } | |
452 | ||
e98a2d6e | 453 | static inline |
50842bdc | 454 | void buf_consume_bits(struct bt_notif_iter *notit, size_t incr) |
e98a2d6e | 455 | { |
fdf0e7a0 PP |
456 | BT_LOGV("Advancing cursor: notit-addr=%p, cur-before=%zu, cur-after=%zu", |
457 | notit, notit->buf.at, notit->buf.at + incr); | |
e98a2d6e PP |
458 | notit->buf.at += incr; |
459 | } | |
460 | ||
e98a2d6e | 461 | static |
50842bdc PP |
462 | enum bt_notif_iter_status request_medium_bytes( |
463 | struct bt_notif_iter *notit) | |
e98a2d6e | 464 | { |
fdf0e7a0 PP |
465 | uint8_t *buffer_addr = NULL; |
466 | size_t buffer_sz = 0; | |
50842bdc | 467 | enum bt_notif_iter_medium_status m_status; |
e98a2d6e | 468 | |
fdf0e7a0 PP |
469 | BT_LOGV("Calling user function (request bytes): notit-addr=%p, " |
470 | "request-size=%zu", notit, notit->medium.max_request_sz); | |
e98a2d6e PP |
471 | m_status = notit->medium.medops.request_bytes( |
472 | notit->medium.max_request_sz, &buffer_addr, | |
473 | &buffer_sz, notit->medium.data); | |
fdf0e7a0 | 474 | BT_LOGV("User function returned: status=%s, buf-addr=%p, buf-size=%zu", |
50842bdc | 475 | bt_notif_iter_medium_status_string(m_status), |
fdf0e7a0 | 476 | buffer_addr, buffer_sz); |
50842bdc | 477 | if (m_status == BT_NOTIF_ITER_MEDIUM_STATUS_OK) { |
f6ccaed9 | 478 | BT_ASSERT(buffer_sz != 0); |
e98a2d6e PP |
479 | |
480 | /* New packet offset is old one + old size (in bits) */ | |
481 | notit->buf.packet_offset += buf_size_bits(notit); | |
482 | ||
483 | /* Restart at the beginning of the new medium buffer */ | |
484 | notit->buf.at = 0; | |
2b186c3e | 485 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
486 | |
487 | /* New medium buffer size */ | |
488 | notit->buf.sz = buffer_sz; | |
489 | ||
490 | /* New medium buffer address */ | |
491 | notit->buf.addr = buffer_addr; | |
fdf0e7a0 PP |
492 | |
493 | BT_LOGV("User function returned new bytes: " | |
494 | "packet-offset=%zu, cur=%zu, size=%zu, addr=%p", | |
495 | notit->buf.packet_offset, notit->buf.at, | |
496 | notit->buf.sz, notit->buf.addr); | |
497 | BT_LOGV_MEM(buffer_addr, buffer_sz, "Returned bytes at %p:", | |
498 | buffer_addr); | |
50842bdc | 499 | } else if (m_status == BT_NOTIF_ITER_MEDIUM_STATUS_EOF) { |
0684124b PP |
500 | /* |
501 | * User returned end of stream: validate that we're not | |
502 | * in the middle of a packet header, packet context, or | |
503 | * event. | |
504 | */ | |
df0139b8 PP |
505 | if (notit->cur_packet_size >= 0) { |
506 | if (packet_at(notit) == notit->cur_packet_size) { | |
507 | goto end; | |
0684124b | 508 | } |
df0139b8 PP |
509 | } else { |
510 | if (packet_at(notit) == 0) { | |
511 | goto end; | |
0684124b | 512 | } |
0684124b | 513 | |
df0139b8 PP |
514 | if (notit->buf.last_eh_at != SIZE_MAX && |
515 | notit->buf.at == notit->buf.last_eh_at) { | |
516 | goto end; | |
0684124b PP |
517 | } |
518 | } | |
519 | ||
0684124b PP |
520 | /* All other states are invalid */ |
521 | BT_LOGW("User function returned %s, but notification iterator is in an unexpected state: " | |
df0139b8 PP |
522 | "state=%s, cur-packet-size=%" PRId64 ", cur=%zu, " |
523 | "packet-cur=%zu, last-eh-at=%zu", | |
50842bdc | 524 | bt_notif_iter_medium_status_string(m_status), |
df0139b8 PP |
525 | state_string(notit->state), |
526 | notit->cur_packet_size, | |
527 | notit->buf.at, packet_at(notit), | |
528 | notit->buf.last_eh_at); | |
50842bdc | 529 | m_status = BT_NOTIF_ITER_MEDIUM_STATUS_ERROR; |
fdf0e7a0 PP |
530 | } else if (m_status < 0) { |
531 | BT_LOGW("User function failed: status=%s", | |
50842bdc | 532 | bt_notif_iter_medium_status_string(m_status)); |
e98a2d6e PP |
533 | } |
534 | ||
df0139b8 | 535 | end: |
e98a2d6e PP |
536 | return notif_iter_status_from_m_status(m_status); |
537 | } | |
538 | ||
539 | static inline | |
50842bdc PP |
540 | enum bt_notif_iter_status buf_ensure_available_bits( |
541 | struct bt_notif_iter *notit) | |
e98a2d6e | 542 | { |
50842bdc | 543 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e PP |
544 | |
545 | if (buf_available_bits(notit) == 0) { | |
546 | /* | |
50842bdc | 547 | * This _cannot_ return BT_NOTIF_ITER_STATUS_OK |
e98a2d6e PP |
548 | * _and_ no bits. |
549 | */ | |
550 | status = request_medium_bytes(notit); | |
551 | } | |
552 | ||
553 | return status; | |
554 | } | |
555 | ||
556 | static | |
50842bdc PP |
557 | enum bt_notif_iter_status read_dscope_begin_state( |
558 | struct bt_notif_iter *notit, | |
559 | struct bt_field_type *dscope_field_type, | |
e98a2d6e | 560 | enum state done_state, enum state continue_state, |
50842bdc | 561 | struct bt_field **dscope_field) |
e98a2d6e | 562 | { |
50842bdc PP |
563 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
564 | enum bt_btr_status btr_status; | |
e98a2d6e PP |
565 | size_t consumed_bits; |
566 | ||
e98a2d6e PP |
567 | bt_put(*dscope_field); |
568 | notit->cur_dscope_field = dscope_field; | |
fdf0e7a0 PP |
569 | BT_LOGV("Starting BTR: notit-addr=%p, btr-addr=%p, ft-addr=%p", |
570 | notit, notit->btr, dscope_field_type); | |
50842bdc | 571 | consumed_bits = bt_btr_start(notit->btr, dscope_field_type, |
e98a2d6e PP |
572 | notit->buf.addr, notit->buf.at, packet_at(notit), |
573 | notit->buf.sz, &btr_status); | |
fdf0e7a0 | 574 | BT_LOGV("BTR consumed bits: size=%zu", consumed_bits); |
e98a2d6e PP |
575 | |
576 | switch (btr_status) { | |
50842bdc | 577 | case BT_BTR_STATUS_OK: |
e98a2d6e | 578 | /* type was read completely */ |
fdf0e7a0 | 579 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
580 | notit->state = done_state; |
581 | break; | |
50842bdc | 582 | case BT_BTR_STATUS_EOF: |
fdf0e7a0 | 583 | BT_LOGV_STR("BTR needs more data to decode field completely."); |
e98a2d6e PP |
584 | notit->state = continue_state; |
585 | break; | |
586 | default: | |
fdf0e7a0 PP |
587 | BT_LOGW("BTR failed to start: notit-addr=%p, btr-addr=%p, " |
588 | "status=%s", notit, notit->btr, | |
50842bdc PP |
589 | bt_btr_status_string(btr_status)); |
590 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
e98a2d6e PP |
591 | goto end; |
592 | } | |
593 | ||
594 | /* Consume bits now since we know we're not in an error state */ | |
595 | buf_consume_bits(notit, consumed_bits); | |
596 | ||
597 | end: | |
598 | return status; | |
599 | } | |
600 | ||
601 | static | |
50842bdc PP |
602 | enum bt_notif_iter_status read_dscope_continue_state( |
603 | struct bt_notif_iter *notit, enum state done_state) | |
e98a2d6e | 604 | { |
50842bdc PP |
605 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
606 | enum bt_btr_status btr_status; | |
e98a2d6e PP |
607 | size_t consumed_bits; |
608 | ||
df0139b8 PP |
609 | BT_LOGV("Continuing BTR: notit-addr=%p, btr-addr=%p", |
610 | notit, notit->btr); | |
611 | ||
e98a2d6e | 612 | status = buf_ensure_available_bits(notit); |
50842bdc | 613 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
fdf0e7a0 PP |
614 | if (status < 0) { |
615 | BT_LOGW("Cannot ensure that buffer has at least one byte: " | |
616 | "notif-addr=%p, status=%s", | |
50842bdc | 617 | notit, bt_notif_iter_status_string(status)); |
fdf0e7a0 PP |
618 | } else { |
619 | BT_LOGV("Cannot ensure that buffer has at least one byte: " | |
620 | "notif-addr=%p, status=%s", | |
50842bdc | 621 | notit, bt_notif_iter_status_string(status)); |
fdf0e7a0 PP |
622 | } |
623 | ||
e98a2d6e PP |
624 | goto end; |
625 | } | |
626 | ||
df0139b8 | 627 | |
50842bdc | 628 | consumed_bits = bt_btr_continue(notit->btr, notit->buf.addr, |
fdf0e7a0 PP |
629 | notit->buf.sz, &btr_status); |
630 | BT_LOGV("BTR consumed bits: size=%zu", consumed_bits); | |
e98a2d6e PP |
631 | |
632 | switch (btr_status) { | |
50842bdc | 633 | case BT_BTR_STATUS_OK: |
78586d8a | 634 | /* Type was read completely. */ |
fdf0e7a0 | 635 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
636 | notit->state = done_state; |
637 | break; | |
50842bdc | 638 | case BT_BTR_STATUS_EOF: |
78586d8a | 639 | /* Stay in this continue state. */ |
fdf0e7a0 | 640 | BT_LOGV_STR("BTR needs more data to decode field completely."); |
e98a2d6e PP |
641 | break; |
642 | default: | |
fdf0e7a0 PP |
643 | BT_LOGW("BTR failed to continue: notit-addr=%p, btr-addr=%p, " |
644 | "status=%s", notit, notit->btr, | |
50842bdc PP |
645 | bt_btr_status_string(btr_status)); |
646 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
e98a2d6e PP |
647 | goto end; |
648 | } | |
649 | ||
78586d8a | 650 | /* Consume bits now since we know we're not in an error state. */ |
e98a2d6e | 651 | buf_consume_bits(notit, consumed_bits); |
e98a2d6e PP |
652 | end: |
653 | return status; | |
654 | } | |
655 | ||
656 | static | |
50842bdc | 657 | void put_event_dscopes(struct bt_notif_iter *notit) |
e98a2d6e | 658 | { |
fdf0e7a0 | 659 | BT_LOGV_STR("Putting event header field."); |
e98a2d6e | 660 | BT_PUT(notit->dscopes.stream_event_header); |
fdf0e7a0 | 661 | BT_LOGV_STR("Putting stream event context field."); |
e98a2d6e | 662 | BT_PUT(notit->dscopes.stream_event_context); |
fdf0e7a0 | 663 | BT_LOGV_STR("Putting event context field."); |
e98a2d6e | 664 | BT_PUT(notit->dscopes.event_context); |
fdf0e7a0 | 665 | BT_LOGV_STR("Putting event payload field."); |
e98a2d6e PP |
666 | BT_PUT(notit->dscopes.event_payload); |
667 | } | |
668 | ||
669 | static | |
50842bdc | 670 | void put_all_dscopes(struct bt_notif_iter *notit) |
e98a2d6e | 671 | { |
fdf0e7a0 | 672 | BT_LOGV_STR("Putting packet header field."); |
e98a2d6e | 673 | BT_PUT(notit->dscopes.trace_packet_header); |
fdf0e7a0 | 674 | BT_LOGV_STR("Putting packet context field."); |
e98a2d6e PP |
675 | BT_PUT(notit->dscopes.stream_packet_context); |
676 | put_event_dscopes(notit); | |
677 | } | |
678 | ||
679 | static | |
50842bdc PP |
680 | enum bt_notif_iter_status read_packet_header_begin_state( |
681 | struct bt_notif_iter *notit) | |
e98a2d6e | 682 | { |
50842bdc PP |
683 | struct bt_field_type *packet_header_type = NULL; |
684 | enum bt_notif_iter_status ret = BT_NOTIF_ITER_STATUS_OK; | |
e98a2d6e | 685 | |
50842bdc | 686 | if (bt_notif_iter_switch_packet(notit)) { |
fdf0e7a0 | 687 | BT_LOGW("Cannot switch packet: notit-addr=%p", notit); |
50842bdc | 688 | ret = BT_NOTIF_ITER_STATUS_ERROR; |
2cf1d51e JG |
689 | goto end; |
690 | } | |
e98a2d6e | 691 | |
2cf1d51e | 692 | /* Packet header type is common to the whole trace. */ |
3dca2276 | 693 | packet_header_type = bt_trace_get_packet_header_field_type( |
78586d8a | 694 | notit->meta.trace); |
e98a2d6e | 695 | if (!packet_header_type) { |
835b2d10 | 696 | notit->state = STATE_AFTER_TRACE_PACKET_HEADER; |
e98a2d6e PP |
697 | goto end; |
698 | } | |
699 | ||
fdf0e7a0 PP |
700 | BT_LOGV("Decoding packet header field:" |
701 | "notit-addr=%p, trace-addr=%p, trace-name=\"%s\", ft-addr=%p", | |
702 | notit, notit->meta.trace, | |
50842bdc | 703 | bt_trace_get_name(notit->meta.trace), packet_header_type); |
2cf1d51e | 704 | ret = read_dscope_begin_state(notit, packet_header_type, |
fdf0e7a0 PP |
705 | STATE_AFTER_TRACE_PACKET_HEADER, |
706 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
707 | ¬it->dscopes.trace_packet_header); | |
708 | if (ret < 0) { | |
709 | BT_LOGW("Cannot decode packet header field: " | |
710 | "notit-addr=%p, trace-addr=%p, " | |
711 | "trace-name=\"%s\", ft-addr=%p", | |
712 | notit, notit->meta.trace, | |
50842bdc | 713 | bt_trace_get_name(notit->meta.trace), |
fdf0e7a0 PP |
714 | packet_header_type); |
715 | } | |
e98a2d6e PP |
716 | end: |
717 | BT_PUT(packet_header_type); | |
2cf1d51e | 718 | return ret; |
e98a2d6e PP |
719 | } |
720 | ||
721 | static | |
50842bdc PP |
722 | enum bt_notif_iter_status read_packet_header_continue_state( |
723 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
724 | { |
725 | return read_dscope_continue_state(notit, | |
78586d8a | 726 | STATE_AFTER_TRACE_PACKET_HEADER); |
e98a2d6e PP |
727 | } |
728 | ||
729 | static inline | |
50842bdc | 730 | bool is_struct_type(struct bt_field_type *field_type) |
e98a2d6e | 731 | { |
50842bdc PP |
732 | return bt_field_type_get_type_id(field_type) == |
733 | BT_FIELD_TYPE_ID_STRUCT; | |
e98a2d6e PP |
734 | } |
735 | ||
736 | static inline | |
50842bdc | 737 | bool is_variant_type(struct bt_field_type *field_type) |
e98a2d6e | 738 | { |
50842bdc PP |
739 | return bt_field_type_get_type_id(field_type) == |
740 | BT_FIELD_TYPE_ID_VARIANT; | |
e98a2d6e PP |
741 | } |
742 | ||
5f870343 JG |
743 | static |
744 | struct stream_class_field_path_cache * | |
745 | create_stream_class_field_path_cache_entry( | |
50842bdc PP |
746 | struct bt_notif_iter *notit, |
747 | struct bt_stream_class *stream_class) | |
5f870343 JG |
748 | { |
749 | int v = -1; | |
750 | int id = -1; | |
751 | int timestamp_end = -1; | |
752 | int packet_size = -1; | |
753 | int content_size = -1; | |
754 | struct stream_class_field_path_cache *cache_entry = g_new0( | |
755 | struct stream_class_field_path_cache, 1); | |
50842bdc | 756 | struct bt_field_type *event_header = NULL, *packet_context = NULL; |
5f870343 JG |
757 | |
758 | if (!cache_entry) { | |
fdf0e7a0 | 759 | BT_LOGE_STR("Failed to allocate one stream class field path cache."); |
5f870343 JG |
760 | goto end; |
761 | } | |
762 | ||
3dca2276 | 763 | event_header = bt_stream_class_get_event_header_field_type(stream_class); |
50842bdc | 764 | if (event_header && bt_field_type_is_structure(event_header)) { |
5f870343 JG |
765 | int i, count; |
766 | ||
50842bdc | 767 | count = bt_field_type_structure_get_field_count( |
fdf0e7a0 | 768 | event_header); |
f6ccaed9 | 769 | BT_ASSERT(count >= 0); |
fdf0e7a0 | 770 | |
5f870343 JG |
771 | for (i = 0; i < count; i++) { |
772 | int ret; | |
773 | const char *name; | |
774 | ||
50842bdc | 775 | ret = bt_field_type_structure_get_field_by_index( |
5f870343 JG |
776 | event_header, &name, NULL, i); |
777 | if (ret) { | |
fdf0e7a0 PP |
778 | BT_LOGE("Cannot get event header structure field type's field: " |
779 | "notit-addr=%p, stream-class-addr=%p, " | |
780 | "stream-class-name=\"%s\", " | |
781 | "stream-class-id=%" PRId64 ", " | |
782 | "ft-addr=%p, index=%d", | |
783 | notit, stream_class, | |
50842bdc PP |
784 | bt_stream_class_get_name(stream_class), |
785 | bt_stream_class_get_id(stream_class), | |
fdf0e7a0 | 786 | event_header, i); |
5f870343 JG |
787 | goto error; |
788 | } | |
789 | ||
790 | if (v != -1 && id != -1) { | |
791 | break; | |
792 | } | |
fdf0e7a0 PP |
793 | |
794 | if (v == -1 && strcmp(name, "v") == 0) { | |
5f870343 JG |
795 | v = i; |
796 | } else if (id == -1 && !strcmp(name, "id")) { | |
797 | id = i; | |
798 | } | |
799 | } | |
800 | } | |
801 | ||
3dca2276 | 802 | packet_context = bt_stream_class_get_packet_context_field_type( |
5f870343 | 803 | stream_class); |
50842bdc | 804 | if (packet_context && bt_field_type_is_structure(packet_context)) { |
5f870343 JG |
805 | int i, count; |
806 | ||
50842bdc | 807 | count = bt_field_type_structure_get_field_count( |
fdf0e7a0 | 808 | packet_context); |
f6ccaed9 | 809 | BT_ASSERT(count >= 0); |
fdf0e7a0 | 810 | |
5f870343 JG |
811 | for (i = 0; i < count; i++) { |
812 | int ret; | |
813 | const char *name; | |
50842bdc | 814 | struct bt_field_type *field_type; |
5f870343 JG |
815 | |
816 | if (timestamp_end != -1 && packet_size != -1 && | |
817 | content_size != -1) { | |
818 | break; | |
819 | } | |
820 | ||
50842bdc | 821 | ret = bt_field_type_structure_get_field_by_index( |
5f870343 JG |
822 | packet_context, &name, &field_type, i); |
823 | if (ret) { | |
fdf0e7a0 PP |
824 | BT_LOGE("Cannot get packet context structure field type's field: " |
825 | "notit-addr=%p, stream-class-addr=%p, " | |
826 | "stream-class-name=\"%s\", " | |
827 | "stream-class-id=%" PRId64 ", " | |
828 | "ft-addr=%p, index=%d", | |
829 | notit, stream_class, | |
50842bdc PP |
830 | bt_stream_class_get_name(stream_class), |
831 | bt_stream_class_get_id(stream_class), | |
fdf0e7a0 | 832 | event_header, i); |
5f870343 JG |
833 | goto error; |
834 | } | |
835 | ||
836 | if (timestamp_end == -1 && | |
fdf0e7a0 | 837 | strcmp(name, "timestamp_end") == 0) { |
5f870343 JG |
838 | struct field_cb_override *override = g_new0( |
839 | struct field_cb_override, 1); | |
840 | ||
841 | if (!override) { | |
842 | BT_PUT(field_type); | |
843 | goto error; | |
844 | } | |
845 | ||
846 | override->func = btr_timestamp_end_cb; | |
847 | override->data = notit; | |
5f870343 | 848 | g_hash_table_insert(notit->field_overrides, |
fdf0e7a0 | 849 | bt_get(field_type), override); |
5f870343 JG |
850 | timestamp_end = i; |
851 | } else if (packet_size == -1 && | |
852 | !strcmp(name, "packet_size")) { | |
853 | packet_size = i; | |
854 | } else if (content_size == -1 && | |
855 | !strcmp(name, "content_size")) { | |
856 | content_size = i; | |
857 | } | |
858 | BT_PUT(field_type); | |
859 | } | |
860 | } | |
861 | ||
862 | cache_entry->v = v; | |
863 | cache_entry->id = id; | |
864 | cache_entry->timestamp_end = timestamp_end; | |
865 | cache_entry->packet_size = packet_size; | |
866 | cache_entry->content_size = content_size; | |
867 | end: | |
868 | BT_PUT(event_header); | |
869 | BT_PUT(packet_context); | |
870 | return cache_entry; | |
871 | error: | |
872 | g_free(cache_entry); | |
873 | cache_entry = NULL; | |
874 | goto end; | |
875 | } | |
876 | ||
877 | static | |
878 | struct stream_class_field_path_cache *get_stream_class_field_path_cache( | |
50842bdc PP |
879 | struct bt_notif_iter *notit, |
880 | struct bt_stream_class *stream_class) | |
5f870343 JG |
881 | { |
882 | bool cache_entry_found; | |
883 | struct stream_class_field_path_cache *cache_entry; | |
884 | ||
885 | cache_entry_found = g_hash_table_lookup_extended( | |
886 | notit->sc_field_path_caches, | |
887 | stream_class, NULL, (gpointer) &cache_entry); | |
888 | if (unlikely(!cache_entry_found)) { | |
889 | cache_entry = create_stream_class_field_path_cache_entry(notit, | |
fdf0e7a0 | 890 | stream_class); |
5f870343 | 891 | g_hash_table_insert(notit->sc_field_path_caches, |
fdf0e7a0 | 892 | bt_get(stream_class), (gpointer) cache_entry); |
5f870343 JG |
893 | } |
894 | ||
895 | return cache_entry; | |
896 | } | |
897 | ||
e98a2d6e | 898 | static inline |
50842bdc PP |
899 | enum bt_notif_iter_status set_current_stream_class( |
900 | struct bt_notif_iter *notit) | |
e98a2d6e | 901 | { |
50842bdc PP |
902 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
903 | struct bt_field_type *packet_header_type = NULL; | |
904 | struct bt_field_type *stream_id_field_type = NULL; | |
905 | struct bt_stream_class *new_stream_class = NULL; | |
e98a2d6e PP |
906 | uint64_t stream_id; |
907 | ||
5f870343 JG |
908 | /* Clear the current stream class field path cache. */ |
909 | notit->cur_sc_field_path_cache = NULL; | |
910 | ||
e98a2d6e | 911 | /* Is there any "stream_id" field in the packet header? */ |
3dca2276 | 912 | packet_header_type = bt_trace_get_packet_header_field_type( |
fdf0e7a0 | 913 | notit->meta.trace); |
e98a2d6e | 914 | if (!packet_header_type) { |
fdf0e7a0 PP |
915 | /* |
916 | * No packet header, therefore no `stream_id` field, | |
917 | * therefore only one stream class. | |
918 | */ | |
919 | goto single_stream_class; | |
e98a2d6e PP |
920 | } |
921 | ||
f6ccaed9 | 922 | BT_ASSERT(is_struct_type(packet_header_type)); |
e98a2d6e PP |
923 | |
924 | // TODO: optimalize! | |
925 | stream_id_field_type = | |
50842bdc | 926 | bt_field_type_structure_get_field_type_by_name( |
fdf0e7a0 | 927 | packet_header_type, "stream_id"); |
e98a2d6e PP |
928 | if (stream_id_field_type) { |
929 | /* Find appropriate stream class using current stream ID */ | |
e98a2d6e | 930 | int ret; |
50842bdc | 931 | struct bt_field *stream_id_field = NULL; |
e98a2d6e | 932 | |
f6ccaed9 | 933 | BT_ASSERT(notit->dscopes.trace_packet_header); |
e98a2d6e PP |
934 | |
935 | // TODO: optimalize! | |
50842bdc | 936 | stream_id_field = bt_field_structure_get_field_by_name( |
78586d8a | 937 | notit->dscopes.trace_packet_header, "stream_id"); |
f6ccaed9 | 938 | BT_ASSERT(stream_id_field); |
3dca2276 | 939 | ret = bt_field_integer_unsigned_get_value( |
78586d8a | 940 | stream_id_field, &stream_id); |
f6ccaed9 | 941 | BT_ASSERT(!ret); |
e98a2d6e PP |
942 | BT_PUT(stream_id_field); |
943 | } else { | |
fdf0e7a0 | 944 | single_stream_class: |
e98a2d6e | 945 | /* Only one stream: pick the first stream class */ |
f6ccaed9 | 946 | BT_ASSERT(bt_trace_get_stream_class_count( |
78586d8a | 947 | notit->meta.trace) == 1); |
e98a2d6e PP |
948 | stream_id = 0; |
949 | } | |
950 | ||
fdf0e7a0 PP |
951 | BT_LOGV("Found stream class ID to use: notit-addr=%p, " |
952 | "stream-class-id=%" PRIu64 ", " | |
953 | "trace-addr=%p, trace-name=\"%s\"", | |
954 | notit, stream_id, notit->meta.trace, | |
50842bdc | 955 | bt_trace_get_name(notit->meta.trace)); |
fdf0e7a0 | 956 | |
50842bdc | 957 | new_stream_class = bt_trace_get_stream_class_by_id( |
fdf0e7a0 | 958 | notit->meta.trace, stream_id); |
115de887 | 959 | if (!new_stream_class) { |
fdf0e7a0 PP |
960 | BT_LOGW("No stream class with ID of stream class ID to use in trace: " |
961 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " | |
962 | "trace-addr=%p, trace-name=\"%s\"", | |
963 | notit, stream_id, notit->meta.trace, | |
50842bdc PP |
964 | bt_trace_get_name(notit->meta.trace)); |
965 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
e98a2d6e PP |
966 | goto end; |
967 | } | |
968 | ||
115de887 PP |
969 | if (notit->meta.stream_class) { |
970 | if (new_stream_class != notit->meta.stream_class) { | |
971 | BT_LOGW("Two packets refer to two different stream classes within the same packet sequence: " | |
972 | "notit-addr=%p, prev-stream-class-addr=%p, " | |
973 | "prev-stream-class-name=\"%s\", " | |
974 | "prev-stream-class-id=%" PRId64 ", " | |
975 | "next-stream-class-addr=%p, " | |
976 | "next-stream-class-name=\"%s\", " | |
977 | "next-stream-class-id=%" PRId64 ", " | |
978 | "trace-addr=%p, trace-name=\"%s\"", | |
979 | notit, notit->meta.stream_class, | |
50842bdc PP |
980 | bt_stream_class_get_name(notit->meta.stream_class), |
981 | bt_stream_class_get_id(notit->meta.stream_class), | |
115de887 | 982 | new_stream_class, |
50842bdc PP |
983 | bt_stream_class_get_name(new_stream_class), |
984 | bt_stream_class_get_id(new_stream_class), | |
115de887 | 985 | notit->meta.trace, |
50842bdc PP |
986 | bt_trace_get_name(notit->meta.trace)); |
987 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
115de887 PP |
988 | goto end; |
989 | } | |
990 | } else { | |
991 | BT_MOVE(notit->meta.stream_class, new_stream_class); | |
992 | } | |
993 | ||
fdf0e7a0 PP |
994 | BT_LOGV("Set current stream class: " |
995 | "notit-addr=%p, stream-class-addr=%p, " | |
996 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
997 | notit, notit->meta.stream_class, | |
50842bdc PP |
998 | bt_stream_class_get_name(notit->meta.stream_class), |
999 | bt_stream_class_get_id(notit->meta.stream_class)); | |
fdf0e7a0 | 1000 | |
5f870343 JG |
1001 | /* |
1002 | * Retrieve (or lazily create) the current stream class field path | |
1003 | * cache. | |
1004 | */ | |
1005 | notit->cur_sc_field_path_cache = get_stream_class_field_path_cache( | |
fdf0e7a0 | 1006 | notit, notit->meta.stream_class); |
5f870343 | 1007 | if (!notit->cur_sc_field_path_cache) { |
fdf0e7a0 PP |
1008 | BT_LOGW("Cannot retrieve stream class field path from cache: " |
1009 | "notit-addr=%p, stream-class-addr=%p, " | |
1010 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1011 | notit, notit->meta.stream_class, | |
50842bdc PP |
1012 | bt_stream_class_get_name(notit->meta.stream_class), |
1013 | bt_stream_class_get_id(notit->meta.stream_class)); | |
1014 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
5f870343 JG |
1015 | goto end; |
1016 | } | |
e98a2d6e PP |
1017 | end: |
1018 | BT_PUT(packet_header_type); | |
1019 | BT_PUT(stream_id_field_type); | |
115de887 | 1020 | bt_put(new_stream_class); |
e98a2d6e PP |
1021 | return status; |
1022 | } | |
1023 | ||
1024 | static | |
50842bdc PP |
1025 | enum bt_notif_iter_status after_packet_header_state( |
1026 | struct bt_notif_iter *notit) | |
e98a2d6e | 1027 | { |
50842bdc | 1028 | enum bt_notif_iter_status status; |
e98a2d6e PP |
1029 | |
1030 | status = set_current_stream_class(notit); | |
50842bdc | 1031 | if (status == BT_NOTIF_ITER_STATUS_OK) { |
e98a2d6e PP |
1032 | notit->state = STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN; |
1033 | } | |
1034 | ||
1035 | return status; | |
1036 | } | |
1037 | ||
1038 | static | |
50842bdc PP |
1039 | enum bt_notif_iter_status read_packet_context_begin_state( |
1040 | struct bt_notif_iter *notit) | |
e98a2d6e | 1041 | { |
50842bdc PP |
1042 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1043 | struct bt_field_type *packet_context_type; | |
e98a2d6e | 1044 | |
f6ccaed9 | 1045 | BT_ASSERT(notit->meta.stream_class); |
3dca2276 | 1046 | packet_context_type = bt_stream_class_get_packet_context_field_type( |
fdf0e7a0 | 1047 | notit->meta.stream_class); |
e98a2d6e | 1048 | if (!packet_context_type) { |
fdf0e7a0 PP |
1049 | BT_LOGV("No packet packet context field type in stream class: continuing: " |
1050 | "notit-addr=%p, stream-class-addr=%p, " | |
1051 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1052 | notit, notit->meta.stream_class, | |
50842bdc PP |
1053 | bt_stream_class_get_name(notit->meta.stream_class), |
1054 | bt_stream_class_get_id(notit->meta.stream_class)); | |
835b2d10 | 1055 | notit->state = STATE_AFTER_STREAM_PACKET_CONTEXT; |
e98a2d6e PP |
1056 | goto end; |
1057 | } | |
1058 | ||
fdf0e7a0 PP |
1059 | BT_LOGV("Decoding packet context field: " |
1060 | "notit-addr=%p, stream-class-addr=%p, " | |
1061 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1062 | "ft-addr=%p", | |
1063 | notit, notit->meta.stream_class, | |
50842bdc PP |
1064 | bt_stream_class_get_name(notit->meta.stream_class), |
1065 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 | 1066 | packet_context_type); |
e98a2d6e | 1067 | status = read_dscope_begin_state(notit, packet_context_type, |
fdf0e7a0 PP |
1068 | STATE_AFTER_STREAM_PACKET_CONTEXT, |
1069 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
1070 | ¬it->dscopes.stream_packet_context); | |
1071 | if (status < 0) { | |
1072 | BT_LOGW("Cannot decode packet context field: " | |
1073 | "notit-addr=%p, stream-class-addr=%p, " | |
1074 | "stream-class-name=\"%s\", " | |
1075 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1076 | notit, notit->meta.stream_class, | |
50842bdc PP |
1077 | bt_stream_class_get_name(notit->meta.stream_class), |
1078 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 PP |
1079 | packet_context_type); |
1080 | } | |
e98a2d6e PP |
1081 | |
1082 | end: | |
1083 | BT_PUT(packet_context_type); | |
e98a2d6e PP |
1084 | return status; |
1085 | } | |
1086 | ||
1087 | static | |
50842bdc PP |
1088 | enum bt_notif_iter_status read_packet_context_continue_state( |
1089 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1090 | { |
1091 | return read_dscope_continue_state(notit, | |
78586d8a | 1092 | STATE_AFTER_STREAM_PACKET_CONTEXT); |
e98a2d6e PP |
1093 | } |
1094 | ||
78586d8a | 1095 | static |
50842bdc PP |
1096 | enum bt_notif_iter_status set_current_packet_content_sizes( |
1097 | struct bt_notif_iter *notit) | |
e98a2d6e | 1098 | { |
50842bdc PP |
1099 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1100 | struct bt_field *packet_size_field = NULL; | |
1101 | struct bt_field *content_size_field = NULL; | |
97755805 | 1102 | uint64_t content_size = -1ULL, packet_size = -1ULL; |
e98a2d6e | 1103 | |
89b08333 MD |
1104 | if (!notit->dscopes.stream_packet_context) { |
1105 | goto end; | |
1106 | } | |
e98a2d6e | 1107 | |
50842bdc | 1108 | packet_size_field = bt_field_structure_get_field_by_name( |
fdf0e7a0 | 1109 | notit->dscopes.stream_packet_context, "packet_size"); |
50842bdc | 1110 | content_size_field = bt_field_structure_get_field_by_name( |
fdf0e7a0 | 1111 | notit->dscopes.stream_packet_context, "content_size"); |
e98a2d6e | 1112 | if (packet_size_field) { |
3dca2276 | 1113 | int ret = bt_field_integer_unsigned_get_value( |
fdf0e7a0 | 1114 | packet_size_field, &packet_size); |
e98a2d6e | 1115 | |
f6ccaed9 | 1116 | BT_ASSERT(ret == 0); |
e98a2d6e | 1117 | if (packet_size == 0) { |
fdf0e7a0 PP |
1118 | BT_LOGW("Invalid packet size: packet context field indicates packet size is zero: " |
1119 | "notit-addr=%p, packet-context-field-addr=%p", | |
1120 | notit, notit->dscopes.stream_packet_context); | |
50842bdc | 1121 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
1122 | goto end; |
1123 | } else if ((packet_size % 8) != 0) { | |
fdf0e7a0 PP |
1124 | BT_LOGW("Invalid packet size: packet context field indicates packet size is not a multiple of 8: " |
1125 | "notit-addr=%p, packet-context-field-addr=%p, " | |
1126 | "packet-size=%" PRIu64, | |
1127 | notit, notit->dscopes.stream_packet_context, | |
1128 | packet_size); | |
50842bdc | 1129 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
1130 | goto end; |
1131 | } | |
1132 | } | |
78586d8a | 1133 | |
e98a2d6e | 1134 | if (content_size_field) { |
3dca2276 | 1135 | int ret = bt_field_integer_unsigned_get_value( |
e98a2d6e | 1136 | content_size_field, &content_size); |
78586d8a | 1137 | |
f6ccaed9 | 1138 | BT_ASSERT(ret == 0); |
e98a2d6e PP |
1139 | } else { |
1140 | content_size = packet_size; | |
1141 | } | |
1142 | ||
fdf0e7a0 PP |
1143 | if (content_size > packet_size) { |
1144 | BT_LOGW("Invalid packet or content size: packet context field indicates content size is greater than packet size: " | |
1145 | "notit-addr=%p, packet-context-field-addr=%p, " | |
1146 | "packet-size=%" PRIu64 ", content-size=%" PRIu64, | |
1147 | notit, notit->dscopes.stream_packet_context, | |
1148 | packet_size, content_size); | |
50842bdc | 1149 | status = BT_NOTIF_ITER_STATUS_ERROR; |
fdf0e7a0 PP |
1150 | goto end; |
1151 | } | |
1152 | ||
97755805 MD |
1153 | if (packet_size != -1ULL) { |
1154 | notit->cur_packet_size = packet_size; | |
1155 | } else { | |
1156 | /* | |
1157 | * Use the content size as packet size indicator if the | |
1158 | * packet size field is missing. This means there is no | |
1159 | * padding in this stream. | |
1160 | */ | |
1161 | notit->cur_packet_size = content_size; | |
1162 | } | |
e98a2d6e | 1163 | notit->cur_content_size = content_size; |
fdf0e7a0 PP |
1164 | BT_LOGV("Set current packet and content sizes: " |
1165 | "notit-addr=%p, packet-size=%" PRIu64 ", content-size=%" PRIu64, | |
1166 | notit, packet_size, content_size); | |
e98a2d6e PP |
1167 | end: |
1168 | BT_PUT(packet_size_field); | |
1169 | BT_PUT(content_size_field); | |
e98a2d6e PP |
1170 | return status; |
1171 | } | |
1172 | ||
1173 | static | |
50842bdc PP |
1174 | enum bt_notif_iter_status after_packet_context_state( |
1175 | struct bt_notif_iter *notit) | |
e98a2d6e | 1176 | { |
50842bdc | 1177 | enum bt_notif_iter_status status; |
e98a2d6e PP |
1178 | |
1179 | status = set_current_packet_content_sizes(notit); | |
50842bdc | 1180 | if (status == BT_NOTIF_ITER_STATUS_OK) { |
f42867e2 PP |
1181 | if (notit->stream_begin_emitted) { |
1182 | notit->state = STATE_EMIT_NOTIF_NEW_PACKET; | |
1183 | } else { | |
1184 | notit->state = STATE_EMIT_NOTIF_NEW_STREAM; | |
1185 | } | |
e98a2d6e PP |
1186 | } |
1187 | ||
1188 | return status; | |
1189 | } | |
1190 | ||
1191 | static | |
50842bdc PP |
1192 | enum bt_notif_iter_status read_event_header_begin_state( |
1193 | struct bt_notif_iter *notit) | |
e98a2d6e | 1194 | { |
50842bdc PP |
1195 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1196 | struct bt_field_type *event_header_type = NULL; | |
e98a2d6e | 1197 | |
174e773b PP |
1198 | /* Reset the position of the last event header */ |
1199 | notit->buf.last_eh_at = notit->buf.at; | |
1200 | ||
e98a2d6e PP |
1201 | /* Check if we have some content left */ |
1202 | if (notit->cur_content_size >= 0) { | |
1203 | if (packet_at(notit) == notit->cur_content_size) { | |
1204 | /* No more events! */ | |
fdf0e7a0 PP |
1205 | BT_LOGV("Reached end of packet: notit-addr=%p, " |
1206 | "cur=%zu", notit, packet_at(notit)); | |
e98a2d6e PP |
1207 | notit->state = STATE_EMIT_NOTIF_END_OF_PACKET; |
1208 | goto end; | |
1209 | } else if (packet_at(notit) > notit->cur_content_size) { | |
1210 | /* That's not supposed to happen */ | |
fdf0e7a0 | 1211 | BT_LOGV("Before decoding event header field: cursor is passed the packet's content: " |
1974687e | 1212 | "notit-addr=%p, content-size=%" PRId64 ", " |
fdf0e7a0 PP |
1213 | "cur=%zu", notit, notit->cur_content_size, |
1214 | packet_at(notit)); | |
50842bdc | 1215 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
1216 | goto end; |
1217 | } | |
1218 | } | |
1219 | ||
3dca2276 | 1220 | event_header_type = bt_stream_class_get_event_header_field_type( |
e98a2d6e PP |
1221 | notit->meta.stream_class); |
1222 | if (!event_header_type) { | |
835b2d10 | 1223 | notit->state = STATE_AFTER_STREAM_EVENT_HEADER; |
e98a2d6e PP |
1224 | goto end; |
1225 | } | |
1226 | ||
1227 | put_event_dscopes(notit); | |
fdf0e7a0 PP |
1228 | BT_LOGV("Decoding event header field: " |
1229 | "notit-addr=%p, stream-class-addr=%p, " | |
1230 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1231 | "ft-addr=%p", | |
1232 | notit, notit->meta.stream_class, | |
50842bdc PP |
1233 | bt_stream_class_get_name(notit->meta.stream_class), |
1234 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 | 1235 | event_header_type); |
e98a2d6e PP |
1236 | status = read_dscope_begin_state(notit, event_header_type, |
1237 | STATE_AFTER_STREAM_EVENT_HEADER, | |
1238 | STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE, | |
1239 | ¬it->dscopes.stream_event_header); | |
fdf0e7a0 PP |
1240 | if (status < 0) { |
1241 | BT_LOGW("Cannot decode event header field: " | |
1242 | "notit-addr=%p, stream-class-addr=%p, " | |
1243 | "stream-class-name=\"%s\", " | |
1244 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1245 | notit, notit->meta.stream_class, | |
50842bdc PP |
1246 | bt_stream_class_get_name(notit->meta.stream_class), |
1247 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 PP |
1248 | event_header_type); |
1249 | } | |
e98a2d6e PP |
1250 | end: |
1251 | BT_PUT(event_header_type); | |
1252 | ||
1253 | return status; | |
1254 | } | |
1255 | ||
1256 | static | |
50842bdc PP |
1257 | enum bt_notif_iter_status read_event_header_continue_state( |
1258 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1259 | { |
1260 | return read_dscope_continue_state(notit, | |
1261 | STATE_AFTER_STREAM_EVENT_HEADER); | |
1262 | } | |
1263 | ||
1264 | static inline | |
50842bdc | 1265 | enum bt_notif_iter_status set_current_event_class(struct bt_notif_iter *notit) |
e98a2d6e PP |
1266 | { |
1267 | /* | |
1268 | * The assert() calls in this function are okay because it is | |
1269 | * assumed here that all the metadata objects have been | |
1270 | * validated for CTF correctness before decoding actual streams. | |
1271 | */ | |
1272 | ||
50842bdc PP |
1273 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1274 | struct bt_field_type *event_header_type; | |
1275 | struct bt_field_type *id_field_type = NULL; | |
1276 | struct bt_field_type *v_field_type = NULL; | |
e98a2d6e PP |
1277 | uint64_t event_id = -1ULL; |
1278 | int ret; | |
1279 | ||
3dca2276 | 1280 | event_header_type = bt_stream_class_get_event_header_field_type( |
e98a2d6e PP |
1281 | notit->meta.stream_class); |
1282 | if (!event_header_type) { | |
fdf0e7a0 PP |
1283 | /* |
1284 | * No event header, therefore no event class ID field, | |
1285 | * therefore only one event class. | |
1286 | */ | |
1287 | goto single_event_class; | |
e98a2d6e PP |
1288 | } |
1289 | ||
1290 | /* Is there any "id"/"v" field in the event header? */ | |
f6ccaed9 | 1291 | BT_ASSERT(is_struct_type(event_header_type)); |
50842bdc | 1292 | id_field_type = bt_field_type_structure_get_field_type_by_name( |
e98a2d6e | 1293 | event_header_type, "id"); |
50842bdc | 1294 | v_field_type = bt_field_type_structure_get_field_type_by_name( |
e98a2d6e | 1295 | event_header_type, "v"); |
f6ccaed9 | 1296 | BT_ASSERT(notit->dscopes.stream_event_header); |
e98a2d6e PP |
1297 | if (v_field_type) { |
1298 | /* | |
1299 | * _ _____ _____ | |
1300 | * | | |_ _|_ _| __ __ _ | |
1301 | * | | | | | || '_ \ / _` | | |
1302 | * | |___| | | || | | | (_| | S P E C I A L | |
1303 | * |_____|_| |_||_| |_|\__, | C A S E ™ | |
1304 | * |___/ | |
1305 | */ | |
50842bdc PP |
1306 | struct bt_field *v_field = NULL; |
1307 | struct bt_field *v_struct_field = NULL; | |
1308 | struct bt_field *v_struct_id_field = NULL; | |
e98a2d6e PP |
1309 | |
1310 | // TODO: optimalize! | |
50842bdc | 1311 | v_field = bt_field_structure_get_field_by_name( |
e98a2d6e | 1312 | notit->dscopes.stream_event_header, "v"); |
f6ccaed9 | 1313 | BT_ASSERT(v_field); |
e98a2d6e PP |
1314 | |
1315 | v_struct_field = | |
50842bdc | 1316 | bt_field_variant_get_current_field(v_field); |
e98a2d6e PP |
1317 | if (!v_struct_field) { |
1318 | goto end_v_field_type; | |
1319 | } | |
1320 | ||
1321 | // TODO: optimalize! | |
1322 | v_struct_id_field = | |
50842bdc | 1323 | bt_field_structure_get_field_by_name(v_struct_field, "id"); |
e98a2d6e PP |
1324 | if (!v_struct_id_field) { |
1325 | goto end_v_field_type; | |
1326 | } | |
1327 | ||
50842bdc | 1328 | if (bt_field_is_integer(v_struct_id_field)) { |
3dca2276 | 1329 | ret = bt_field_integer_unsigned_get_value( |
fdf0e7a0 PP |
1330 | v_struct_id_field, &event_id); |
1331 | if (ret) { | |
1332 | BT_LOGV("Cannot get value of unsigned integer field (`id`): continuing: " | |
1333 | "notit=%p, field-addr=%p", | |
1334 | notit, v_struct_id_field); | |
1335 | event_id = -1ULL; | |
1336 | } | |
e98a2d6e PP |
1337 | } |
1338 | ||
1339 | end_v_field_type: | |
1340 | BT_PUT(v_field); | |
1341 | BT_PUT(v_struct_field); | |
1342 | BT_PUT(v_struct_id_field); | |
1343 | } | |
1344 | ||
1345 | if (id_field_type && event_id == -1ULL) { | |
1346 | /* Check "id" field */ | |
50842bdc | 1347 | struct bt_field *id_field = NULL; |
6606e9c1 | 1348 | int ret_get_value = 0; |
e98a2d6e PP |
1349 | |
1350 | // TODO: optimalize! | |
50842bdc | 1351 | id_field = bt_field_structure_get_field_by_name( |
e98a2d6e | 1352 | notit->dscopes.stream_event_header, "id"); |
fdf0e7a0 PP |
1353 | if (!id_field) { |
1354 | goto check_event_id; | |
1355 | } | |
e98a2d6e | 1356 | |
50842bdc | 1357 | if (bt_field_is_integer(id_field)) { |
3dca2276 | 1358 | ret_get_value = bt_field_integer_unsigned_get_value( |
e98a2d6e | 1359 | id_field, &event_id); |
50842bdc PP |
1360 | } else if (bt_field_is_enumeration(id_field)) { |
1361 | struct bt_field *container; | |
e98a2d6e | 1362 | |
50842bdc | 1363 | container = bt_field_enumeration_get_container( |
e98a2d6e | 1364 | id_field); |
f6ccaed9 | 1365 | BT_ASSERT(container); |
3dca2276 | 1366 | ret_get_value = bt_field_integer_unsigned_get_value( |
e98a2d6e PP |
1367 | container, &event_id); |
1368 | BT_PUT(container); | |
1369 | } | |
fdf0e7a0 | 1370 | |
f6ccaed9 | 1371 | BT_ASSERT(ret_get_value == 0); |
e98a2d6e PP |
1372 | BT_PUT(id_field); |
1373 | } | |
1374 | ||
fdf0e7a0 | 1375 | check_event_id: |
e98a2d6e | 1376 | if (event_id == -1ULL) { |
fdf0e7a0 | 1377 | single_event_class: |
e98a2d6e | 1378 | /* Event ID not found: single event? */ |
f6ccaed9 | 1379 | BT_ASSERT(bt_stream_class_get_event_class_count( |
e98a2d6e PP |
1380 | notit->meta.stream_class) == 1); |
1381 | event_id = 0; | |
1382 | } | |
1383 | ||
fdf0e7a0 PP |
1384 | BT_LOGV("Found event class ID to use: notit-addr=%p, " |
1385 | "stream-class-addr=%p, stream-class-name=\"%s\", " | |
1386 | "stream-class-id=%" PRId64 ", " | |
1387 | "event-class-id=%" PRIu64, | |
1388 | notit, notit->meta.stream_class, | |
50842bdc PP |
1389 | bt_stream_class_get_name(notit->meta.stream_class), |
1390 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 | 1391 | event_id); |
e98a2d6e | 1392 | BT_PUT(notit->meta.event_class); |
50842bdc | 1393 | notit->meta.event_class = bt_stream_class_get_event_class_by_id( |
e98a2d6e PP |
1394 | notit->meta.stream_class, event_id); |
1395 | if (!notit->meta.event_class) { | |
fdf0e7a0 PP |
1396 | BT_LOGW("No event class with ID of event class ID to use in stream class: " |
1397 | "notit-addr=%p, stream-class-addr=%p, " | |
1398 | "stream-class-name=\"%s\", " | |
1399 | "stream-class-id=%" PRId64 ", " | |
1400 | "event-class-id=%" PRIu64, | |
1401 | notit, notit->meta.stream_class, | |
50842bdc PP |
1402 | bt_stream_class_get_name(notit->meta.stream_class), |
1403 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 | 1404 | event_id); |
50842bdc | 1405 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
1406 | goto end; |
1407 | } | |
1408 | ||
fdf0e7a0 PP |
1409 | BT_LOGV("Set current event class: " |
1410 | "notit-addr=%p, event-class-addr=%p, " | |
1411 | "event-class-name=\"%s\", event-class-id=%" PRId64, | |
1412 | notit, notit->meta.event_class, | |
50842bdc PP |
1413 | bt_event_class_get_name(notit->meta.event_class), |
1414 | bt_event_class_get_id(notit->meta.event_class)); | |
fdf0e7a0 | 1415 | |
e98a2d6e PP |
1416 | end: |
1417 | BT_PUT(event_header_type); | |
1418 | BT_PUT(id_field_type); | |
1419 | BT_PUT(v_field_type); | |
1420 | ||
1421 | return status; | |
1422 | } | |
1423 | ||
1424 | static | |
50842bdc PP |
1425 | enum bt_notif_iter_status after_event_header_state( |
1426 | struct bt_notif_iter *notit) | |
e98a2d6e | 1427 | { |
50842bdc | 1428 | enum bt_notif_iter_status status; |
e98a2d6e | 1429 | |
e98a2d6e | 1430 | status = set_current_event_class(notit); |
50842bdc | 1431 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
e98a2d6e PP |
1432 | goto end; |
1433 | } | |
1434 | ||
1435 | notit->state = STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN; | |
1436 | ||
1437 | end: | |
1438 | return status; | |
1439 | } | |
1440 | ||
1441 | static | |
50842bdc PP |
1442 | enum bt_notif_iter_status read_stream_event_context_begin_state( |
1443 | struct bt_notif_iter *notit) | |
e98a2d6e | 1444 | { |
50842bdc PP |
1445 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1446 | struct bt_field_type *stream_event_context_type; | |
e98a2d6e | 1447 | |
3dca2276 PP |
1448 | stream_event_context_type = |
1449 | bt_stream_class_get_event_context_field_type( | |
1450 | notit->meta.stream_class); | |
e98a2d6e | 1451 | if (!stream_event_context_type) { |
835b2d10 | 1452 | notit->state = STATE_DSCOPE_EVENT_CONTEXT_BEGIN; |
e98a2d6e PP |
1453 | goto end; |
1454 | } | |
1455 | ||
fdf0e7a0 PP |
1456 | BT_LOGV("Decoding stream event context field: " |
1457 | "notit-addr=%p, stream-class-addr=%p, " | |
1458 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1459 | "ft-addr=%p", | |
1460 | notit, notit->meta.stream_class, | |
50842bdc PP |
1461 | bt_stream_class_get_name(notit->meta.stream_class), |
1462 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 | 1463 | stream_event_context_type); |
e98a2d6e PP |
1464 | status = read_dscope_begin_state(notit, stream_event_context_type, |
1465 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN, | |
1466 | STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE, | |
1467 | ¬it->dscopes.stream_event_context); | |
fdf0e7a0 PP |
1468 | if (status < 0) { |
1469 | BT_LOGW("Cannot decode stream event context field: " | |
1470 | "notit-addr=%p, stream-class-addr=%p, " | |
1471 | "stream-class-name=\"%s\", " | |
1472 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1473 | notit, notit->meta.stream_class, | |
50842bdc PP |
1474 | bt_stream_class_get_name(notit->meta.stream_class), |
1475 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 PP |
1476 | stream_event_context_type); |
1477 | } | |
e98a2d6e PP |
1478 | |
1479 | end: | |
1480 | BT_PUT(stream_event_context_type); | |
1481 | ||
1482 | return status; | |
1483 | } | |
1484 | ||
1485 | static | |
50842bdc PP |
1486 | enum bt_notif_iter_status read_stream_event_context_continue_state( |
1487 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1488 | { |
1489 | return read_dscope_continue_state(notit, | |
1490 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN); | |
1491 | } | |
1492 | ||
1493 | static | |
50842bdc PP |
1494 | enum bt_notif_iter_status read_event_context_begin_state( |
1495 | struct bt_notif_iter *notit) | |
e98a2d6e | 1496 | { |
50842bdc PP |
1497 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1498 | struct bt_field_type *event_context_type; | |
e98a2d6e | 1499 | |
3dca2276 | 1500 | event_context_type = bt_event_class_get_context_field_type( |
e98a2d6e PP |
1501 | notit->meta.event_class); |
1502 | if (!event_context_type) { | |
835b2d10 | 1503 | notit->state = STATE_DSCOPE_EVENT_PAYLOAD_BEGIN; |
e98a2d6e PP |
1504 | goto end; |
1505 | } | |
fdf0e7a0 PP |
1506 | |
1507 | BT_LOGV("Decoding event context field: " | |
1508 | "notit-addr=%p, event-class-addr=%p, " | |
1509 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
1510 | "ft-addr=%p", | |
1511 | notit, notit->meta.event_class, | |
50842bdc PP |
1512 | bt_event_class_get_name(notit->meta.event_class), |
1513 | bt_event_class_get_id(notit->meta.event_class), | |
fdf0e7a0 | 1514 | event_context_type); |
e98a2d6e PP |
1515 | status = read_dscope_begin_state(notit, event_context_type, |
1516 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, | |
1517 | STATE_DSCOPE_EVENT_CONTEXT_CONTINUE, | |
1518 | ¬it->dscopes.event_context); | |
fdf0e7a0 PP |
1519 | if (status < 0) { |
1520 | BT_LOGW("Cannot decode event context field: " | |
1521 | "notit-addr=%p, event-class-addr=%p, " | |
1522 | "event-class-name=\"%s\", " | |
1523 | "event-class-id=%" PRId64 ", ft-addr=%p", | |
1524 | notit, notit->meta.event_class, | |
50842bdc PP |
1525 | bt_event_class_get_name(notit->meta.event_class), |
1526 | bt_event_class_get_id(notit->meta.event_class), | |
fdf0e7a0 PP |
1527 | event_context_type); |
1528 | } | |
e98a2d6e PP |
1529 | |
1530 | end: | |
1531 | BT_PUT(event_context_type); | |
1532 | ||
1533 | return status; | |
1534 | } | |
1535 | ||
1536 | static | |
50842bdc PP |
1537 | enum bt_notif_iter_status read_event_context_continue_state( |
1538 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1539 | { |
1540 | return read_dscope_continue_state(notit, | |
1541 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN); | |
1542 | } | |
1543 | ||
1544 | static | |
50842bdc PP |
1545 | enum bt_notif_iter_status read_event_payload_begin_state( |
1546 | struct bt_notif_iter *notit) | |
e98a2d6e | 1547 | { |
50842bdc PP |
1548 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
1549 | struct bt_field_type *event_payload_type; | |
e98a2d6e | 1550 | |
3dca2276 | 1551 | event_payload_type = bt_event_class_get_payload_field_type( |
e98a2d6e PP |
1552 | notit->meta.event_class); |
1553 | if (!event_payload_type) { | |
835b2d10 | 1554 | notit->state = STATE_EMIT_NOTIF_EVENT; |
e98a2d6e PP |
1555 | goto end; |
1556 | } | |
1557 | ||
fdf0e7a0 PP |
1558 | BT_LOGV("Decoding event payload field: " |
1559 | "notit-addr=%p, event-class-addr=%p, " | |
1560 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
1561 | "ft-addr=%p", | |
1562 | notit, notit->meta.event_class, | |
50842bdc PP |
1563 | bt_event_class_get_name(notit->meta.event_class), |
1564 | bt_event_class_get_id(notit->meta.event_class), | |
fdf0e7a0 | 1565 | event_payload_type); |
e98a2d6e PP |
1566 | status = read_dscope_begin_state(notit, event_payload_type, |
1567 | STATE_EMIT_NOTIF_EVENT, | |
1568 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
1569 | ¬it->dscopes.event_payload); | |
fdf0e7a0 PP |
1570 | if (status < 0) { |
1571 | BT_LOGW("Cannot decode event payload field: " | |
1572 | "notit-addr=%p, event-class-addr=%p, " | |
1573 | "event-class-name=\"%s\", " | |
1574 | "event-class-id=%" PRId64 ", ft-addr=%p", | |
1575 | notit, notit->meta.event_class, | |
50842bdc PP |
1576 | bt_event_class_get_name(notit->meta.event_class), |
1577 | bt_event_class_get_id(notit->meta.event_class), | |
fdf0e7a0 PP |
1578 | event_payload_type); |
1579 | } | |
e98a2d6e PP |
1580 | |
1581 | end: | |
1582 | BT_PUT(event_payload_type); | |
1583 | ||
1584 | return status; | |
1585 | } | |
1586 | ||
1587 | static | |
50842bdc PP |
1588 | enum bt_notif_iter_status read_event_payload_continue_state( |
1589 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1590 | { |
1591 | return read_dscope_continue_state(notit, STATE_EMIT_NOTIF_EVENT); | |
1592 | } | |
1593 | ||
1594 | static | |
50842bdc PP |
1595 | enum bt_notif_iter_status skip_packet_padding_state( |
1596 | struct bt_notif_iter *notit) | |
e98a2d6e | 1597 | { |
50842bdc | 1598 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e PP |
1599 | size_t bits_to_skip; |
1600 | ||
f6ccaed9 | 1601 | BT_ASSERT(notit->cur_packet_size > 0); |
e98a2d6e PP |
1602 | bits_to_skip = notit->cur_packet_size - packet_at(notit); |
1603 | if (bits_to_skip == 0) { | |
1604 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1605 | goto end; | |
1606 | } else { | |
1607 | size_t bits_to_consume; | |
fdf0e7a0 PP |
1608 | |
1609 | BT_LOGV("Trying to skip %zu bits of padding: notit-addr=%p, size=%zu", | |
1610 | bits_to_skip, notit, bits_to_skip); | |
e98a2d6e | 1611 | status = buf_ensure_available_bits(notit); |
50842bdc | 1612 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
e98a2d6e PP |
1613 | goto end; |
1614 | } | |
1615 | ||
1616 | bits_to_consume = MIN(buf_available_bits(notit), bits_to_skip); | |
fdf0e7a0 PP |
1617 | BT_LOGV("Skipping %zu bits of padding: notit-addr=%p, size=%zu", |
1618 | bits_to_consume, notit, bits_to_consume); | |
e98a2d6e PP |
1619 | buf_consume_bits(notit, bits_to_consume); |
1620 | bits_to_skip = notit->cur_packet_size - packet_at(notit); | |
1621 | if (bits_to_skip == 0) { | |
1622 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1623 | goto end; | |
1624 | } | |
1625 | } | |
1626 | ||
1627 | end: | |
1628 | return status; | |
1629 | } | |
1630 | ||
1631 | static inline | |
50842bdc | 1632 | enum bt_notif_iter_status handle_state(struct bt_notif_iter *notit) |
e98a2d6e | 1633 | { |
50842bdc | 1634 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
fdf0e7a0 | 1635 | const enum state state = notit->state; |
e98a2d6e | 1636 | |
fdf0e7a0 PP |
1637 | BT_LOGV("Handling state: notit-addr=%p, state=%s", |
1638 | notit, state_string(state)); | |
e98a2d6e PP |
1639 | |
1640 | // TODO: optimalize! | |
fdf0e7a0 | 1641 | switch (state) { |
e98a2d6e PP |
1642 | case STATE_INIT: |
1643 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1644 | break; | |
1645 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
1646 | status = read_packet_header_begin_state(notit); | |
1647 | break; | |
1648 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
1649 | status = read_packet_header_continue_state(notit); | |
1650 | break; | |
1651 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
1652 | status = after_packet_header_state(notit); | |
1653 | break; | |
1654 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
1655 | status = read_packet_context_begin_state(notit); | |
1656 | break; | |
1657 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
1658 | status = read_packet_context_continue_state(notit); | |
1659 | break; | |
1660 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
1661 | status = after_packet_context_state(notit); | |
1662 | break; | |
f42867e2 PP |
1663 | case STATE_EMIT_NOTIF_NEW_STREAM: |
1664 | notit->state = STATE_EMIT_NOTIF_NEW_PACKET; | |
1665 | break; | |
e98a2d6e PP |
1666 | case STATE_EMIT_NOTIF_NEW_PACKET: |
1667 | notit->state = STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN; | |
1668 | break; | |
1669 | case STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN: | |
1670 | status = read_event_header_begin_state(notit); | |
1671 | break; | |
1672 | case STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE: | |
1673 | status = read_event_header_continue_state(notit); | |
1674 | break; | |
1675 | case STATE_AFTER_STREAM_EVENT_HEADER: | |
1676 | status = after_event_header_state(notit); | |
1677 | break; | |
1678 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN: | |
1679 | status = read_stream_event_context_begin_state(notit); | |
1680 | break; | |
1681 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE: | |
1682 | status = read_stream_event_context_continue_state(notit); | |
1683 | break; | |
1684 | case STATE_DSCOPE_EVENT_CONTEXT_BEGIN: | |
1685 | status = read_event_context_begin_state(notit); | |
1686 | break; | |
1687 | case STATE_DSCOPE_EVENT_CONTEXT_CONTINUE: | |
1688 | status = read_event_context_continue_state(notit); | |
1689 | break; | |
1690 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
1691 | status = read_event_payload_begin_state(notit); | |
1692 | break; | |
1693 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
1694 | status = read_event_payload_continue_state(notit); | |
1695 | break; | |
1696 | case STATE_EMIT_NOTIF_EVENT: | |
1697 | notit->state = STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN; | |
1698 | break; | |
1699 | case STATE_SKIP_PACKET_PADDING: | |
1700 | status = skip_packet_padding_state(notit); | |
1701 | break; | |
1702 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
1703 | notit->state = STATE_SKIP_PACKET_PADDING; | |
1704 | break; | |
fdf0e7a0 PP |
1705 | default: |
1706 | BT_LOGD("Unknown CTF plugin notification iterator state: " | |
1707 | "notit-addr=%p, state=%d", notit, notit->state); | |
1708 | abort(); | |
e98a2d6e PP |
1709 | } |
1710 | ||
fdf0e7a0 PP |
1711 | BT_LOGV("Handled state: notit-addr=%p, status=%s, " |
1712 | "prev-state=%s, cur-state=%s", | |
50842bdc | 1713 | notit, bt_notif_iter_status_string(status), |
fdf0e7a0 | 1714 | state_string(state), state_string(notit->state)); |
e98a2d6e PP |
1715 | return status; |
1716 | } | |
1717 | ||
2cf1d51e JG |
1718 | /** |
1719 | * Resets the internal state of a CTF notification iterator. | |
2cf1d51e | 1720 | */ |
f42867e2 | 1721 | BT_HIDDEN |
50842bdc | 1722 | void bt_notif_iter_reset(struct bt_notif_iter *notit) |
e98a2d6e | 1723 | { |
f6ccaed9 | 1724 | BT_ASSERT(notit); |
fdf0e7a0 | 1725 | BT_LOGD("Resetting notification iterator: addr=%p", notit); |
e98a2d6e PP |
1726 | stack_clear(notit->stack); |
1727 | BT_PUT(notit->meta.stream_class); | |
1728 | BT_PUT(notit->meta.event_class); | |
1729 | BT_PUT(notit->packet); | |
af87daef | 1730 | BT_PUT(notit->stream); |
e98a2d6e PP |
1731 | put_all_dscopes(notit); |
1732 | notit->buf.addr = NULL; | |
1733 | notit->buf.sz = 0; | |
1734 | notit->buf.at = 0; | |
2b186c3e | 1735 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
1736 | notit->buf.packet_offset = 0; |
1737 | notit->state = STATE_INIT; | |
1738 | notit->cur_content_size = -1; | |
1739 | notit->cur_packet_size = -1; | |
9e0c8dbb | 1740 | notit->cur_packet_offset = -1; |
f42867e2 | 1741 | notit->stream_begin_emitted = false; |
e98a2d6e PP |
1742 | } |
1743 | ||
2cf1d51e | 1744 | static |
50842bdc | 1745 | int bt_notif_iter_switch_packet(struct bt_notif_iter *notit) |
2cf1d51e JG |
1746 | { |
1747 | int ret = 0; | |
1748 | ||
115de887 PP |
1749 | /* |
1750 | * We don't put the stream class here because we need to make | |
1751 | * sure that all the packets processed by the same notification | |
1752 | * iterator refer to the same stream class (the first one). | |
1753 | */ | |
f6ccaed9 | 1754 | BT_ASSERT(notit); |
9e0c8dbb JG |
1755 | if (notit->cur_packet_size != -1) { |
1756 | notit->cur_packet_offset += notit->cur_packet_size; | |
1757 | } | |
1758 | BT_LOGV("Switching packet: notit-addr=%p, cur=%zu, " | |
1759 | "packet-offset=%" PRId64, notit, notit->buf.at, | |
1760 | notit->cur_packet_offset); | |
2cf1d51e | 1761 | stack_clear(notit->stack); |
2cf1d51e JG |
1762 | BT_PUT(notit->meta.event_class); |
1763 | BT_PUT(notit->packet); | |
5f870343 | 1764 | BT_PUT(notit->cur_timestamp_end); |
2cf1d51e JG |
1765 | put_all_dscopes(notit); |
1766 | ||
1767 | /* | |
1768 | * Adjust current buffer so that addr points to the beginning of the new | |
1769 | * packet. | |
1770 | */ | |
1771 | if (notit->buf.addr) { | |
1772 | size_t consumed_bytes = (size_t) (notit->buf.at / CHAR_BIT); | |
1773 | ||
1774 | /* Packets are assumed to start on a byte frontier. */ | |
1775 | if (notit->buf.at % CHAR_BIT) { | |
fdf0e7a0 PP |
1776 | BT_LOGW("Cannot switch packet: current position is not a multiple of 8: " |
1777 | "notit-addr=%p, cur=%zu", notit, notit->buf.at); | |
2cf1d51e JG |
1778 | ret = -1; |
1779 | goto end; | |
1780 | } | |
1781 | ||
1782 | notit->buf.addr += consumed_bytes; | |
1783 | notit->buf.sz -= consumed_bytes; | |
1784 | notit->buf.at = 0; | |
1785 | notit->buf.packet_offset = 0; | |
fdf0e7a0 PP |
1786 | BT_LOGV("Adjusted buffer: addr=%p, size=%zu", |
1787 | notit->buf.addr, notit->buf.sz); | |
2cf1d51e JG |
1788 | } |
1789 | ||
1790 | notit->cur_content_size = -1; | |
1791 | notit->cur_packet_size = -1; | |
5f870343 | 1792 | notit->cur_sc_field_path_cache = NULL; |
fdf0e7a0 | 1793 | |
2cf1d51e JG |
1794 | end: |
1795 | return ret; | |
1796 | } | |
1797 | ||
e98a2d6e | 1798 | static |
50842bdc | 1799 | struct bt_field *get_next_field(struct bt_notif_iter *notit) |
e98a2d6e | 1800 | { |
50842bdc PP |
1801 | struct bt_field *next_field = NULL; |
1802 | struct bt_field *base_field; | |
1803 | struct bt_field_type *base_type; | |
e98a2d6e PP |
1804 | size_t index; |
1805 | ||
f6ccaed9 | 1806 | BT_ASSERT(!stack_empty(notit->stack)); |
e98a2d6e PP |
1807 | index = stack_top(notit->stack)->index; |
1808 | base_field = stack_top(notit->stack)->base; | |
f6ccaed9 | 1809 | BT_ASSERT(base_field); |
50842bdc | 1810 | base_type = bt_field_get_type(base_field); |
f6ccaed9 | 1811 | BT_ASSERT(base_type); |
e98a2d6e | 1812 | |
50842bdc PP |
1813 | switch (bt_field_type_get_type_id(base_type)) { |
1814 | case BT_FIELD_TYPE_ID_STRUCT: | |
f42867e2 | 1815 | { |
50842bdc | 1816 | next_field = bt_field_structure_get_field_by_index( |
e98a2d6e | 1817 | base_field, index); |
f42867e2 PP |
1818 | const char *name; |
1819 | bt_field_type_structure_get_field_by_index(base_type, | |
1820 | &name, NULL, index); | |
e98a2d6e | 1821 | break; |
f42867e2 | 1822 | } |
50842bdc PP |
1823 | case BT_FIELD_TYPE_ID_ARRAY: |
1824 | next_field = bt_field_array_get_field(base_field, index); | |
e98a2d6e | 1825 | break; |
50842bdc PP |
1826 | case BT_FIELD_TYPE_ID_SEQUENCE: |
1827 | next_field = bt_field_sequence_get_field(base_field, index); | |
e98a2d6e | 1828 | break; |
50842bdc PP |
1829 | case BT_FIELD_TYPE_ID_VARIANT: |
1830 | next_field = bt_field_variant_get_current_field(base_field); | |
e98a2d6e PP |
1831 | break; |
1832 | default: | |
fdf0e7a0 PP |
1833 | BT_LOGF("Unknown base field type ID: " |
1834 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
1835 | notit, base_type, | |
3dca2276 | 1836 | bt_common_field_type_id_string( |
50842bdc | 1837 | bt_field_type_get_type_id(base_type))); |
0fbb9a9f | 1838 | abort(); |
e98a2d6e PP |
1839 | } |
1840 | ||
e98a2d6e | 1841 | BT_PUT(base_type); |
e98a2d6e PP |
1842 | return next_field; |
1843 | } | |
1844 | ||
c44c3e70 JG |
1845 | static |
1846 | void update_clock_state(uint64_t *state, | |
50842bdc | 1847 | struct bt_field *value_field) |
c44c3e70 | 1848 | { |
50842bdc | 1849 | struct bt_field_type *value_type = NULL; |
c44c3e70 JG |
1850 | uint64_t requested_new_value; |
1851 | uint64_t requested_new_value_mask; | |
1852 | uint64_t cur_value_masked; | |
1853 | int requested_new_value_size; | |
1854 | int ret; | |
1855 | ||
50842bdc | 1856 | value_type = bt_field_get_type(value_field); |
f6ccaed9 PP |
1857 | BT_ASSERT(value_type); |
1858 | BT_ASSERT(bt_field_type_is_integer(value_type)); | |
c44c3e70 | 1859 | requested_new_value_size = |
50842bdc | 1860 | bt_field_type_integer_get_size(value_type); |
f6ccaed9 | 1861 | BT_ASSERT(requested_new_value_size > 0); |
3dca2276 | 1862 | ret = bt_field_integer_unsigned_get_value(value_field, |
c44c3e70 | 1863 | &requested_new_value); |
f6ccaed9 | 1864 | BT_ASSERT(!ret); |
c44c3e70 JG |
1865 | |
1866 | /* | |
1867 | * Special case for a 64-bit new value, which is the limit | |
1868 | * of a clock value as of this version: overwrite the | |
1869 | * current value directly. | |
1870 | */ | |
1871 | if (requested_new_value_size == 64) { | |
1872 | *state = requested_new_value; | |
1873 | goto end; | |
1874 | } | |
1875 | ||
1876 | requested_new_value_mask = (1ULL << requested_new_value_size) - 1; | |
1877 | cur_value_masked = *state & requested_new_value_mask; | |
1878 | ||
1879 | if (requested_new_value < cur_value_masked) { | |
1880 | /* | |
1881 | * It looks like a wrap happened on the number of bits | |
1882 | * of the requested new value. Assume that the clock | |
1883 | * value wrapped only one time. | |
1884 | */ | |
1885 | *state += requested_new_value_mask + 1; | |
1886 | } | |
1887 | ||
1888 | /* Clear the low bits of the current clock value. */ | |
1889 | *state &= ~requested_new_value_mask; | |
1890 | ||
1891 | /* Set the low bits of the current clock value. */ | |
1892 | *state |= requested_new_value; | |
1893 | end: | |
fdf0e7a0 PP |
1894 | BT_LOGV("Updated clock's value from integer field's value: " |
1895 | "value=%" PRIu64, *state); | |
c44c3e70 JG |
1896 | bt_put(value_type); |
1897 | } | |
1898 | ||
1899 | static | |
50842bdc PP |
1900 | enum bt_btr_status update_clock(struct bt_notif_iter *notit, |
1901 | struct bt_field *int_field) | |
c44c3e70 | 1902 | { |
ac0c6bdd | 1903 | gboolean clock_class_found; |
8cb1fb66 | 1904 | uint64_t *clock_state = NULL; |
50842bdc PP |
1905 | struct bt_field_type *int_field_type = NULL; |
1906 | enum bt_btr_status ret = BT_BTR_STATUS_OK; | |
1907 | struct bt_clock_class *clock_class = NULL; | |
c44c3e70 | 1908 | |
50842bdc | 1909 | int_field_type = bt_field_get_type(int_field); |
f6ccaed9 | 1910 | BT_ASSERT(int_field_type); |
50842bdc | 1911 | clock_class = bt_field_type_integer_get_mapped_clock_class( |
f45bfe88 | 1912 | int_field_type); |
ac0c6bdd | 1913 | if (likely(!clock_class)) { |
f45bfe88 | 1914 | goto end; |
c44c3e70 JG |
1915 | } |
1916 | ||
ac0c6bdd | 1917 | clock_class_found = g_hash_table_lookup_extended(notit->clock_states, |
fdf0e7a0 | 1918 | clock_class, NULL, (gpointer) &clock_state); |
8cb1fb66 | 1919 | if (!clock_class_found) { |
c44c3e70 JG |
1920 | clock_state = g_new0(uint64_t, 1); |
1921 | if (!clock_state) { | |
fdf0e7a0 | 1922 | BT_LOGE_STR("Failed to allocate a uint64_t."); |
50842bdc | 1923 | ret = BT_BTR_STATUS_ENOMEM; |
c44c3e70 JG |
1924 | goto end; |
1925 | } | |
fdf0e7a0 | 1926 | |
ac0c6bdd | 1927 | g_hash_table_insert(notit->clock_states, bt_get(clock_class), |
fdf0e7a0 | 1928 | clock_state); |
c44c3e70 JG |
1929 | } |
1930 | ||
1931 | /* Update the clock's state. */ | |
fdf0e7a0 PP |
1932 | BT_LOGV("Updating notification iterator's clock's value from integer field: " |
1933 | "notit-addr=%p, clock-class-addr=%p, " | |
1934 | "clock-class-name=\"%s\", value=%" PRIu64, | |
1935 | notit, clock_class, | |
50842bdc | 1936 | bt_clock_class_get_name(clock_class), *clock_state); |
c44c3e70 JG |
1937 | update_clock_state(clock_state, int_field); |
1938 | end: | |
f45bfe88 | 1939 | bt_put(int_field_type); |
ac0c6bdd | 1940 | bt_put(clock_class); |
c44c3e70 JG |
1941 | return ret; |
1942 | } | |
1943 | ||
e98a2d6e | 1944 | static |
50842bdc PP |
1945 | enum bt_btr_status btr_unsigned_int_common(uint64_t value, |
1946 | struct bt_field_type *type, void *data, | |
1947 | struct bt_field **out_int_field) | |
1948 | { | |
1949 | enum bt_btr_status status = BT_BTR_STATUS_OK; | |
1950 | struct bt_field *field = NULL; | |
1951 | struct bt_field *int_field = NULL; | |
1952 | struct bt_notif_iter *notit = data; | |
e98a2d6e PP |
1953 | int ret; |
1954 | ||
fdf0e7a0 PP |
1955 | BT_LOGV("Common unsigned integer function called from BTR: " |
1956 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
1957 | "ft-id=%s, value=%" PRIu64, | |
1958 | notit, notit->btr, type, | |
3dca2276 | 1959 | bt_common_field_type_id_string( |
50842bdc | 1960 | bt_field_type_get_type_id(type)), |
fdf0e7a0 PP |
1961 | value); |
1962 | ||
5f870343 | 1963 | /* Create next field */ |
e98a2d6e PP |
1964 | field = get_next_field(notit); |
1965 | if (!field) { | |
fdf0e7a0 | 1966 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
50842bdc | 1967 | status = BT_BTR_STATUS_ERROR; |
c44c3e70 | 1968 | goto end_no_put; |
e98a2d6e PP |
1969 | } |
1970 | ||
50842bdc PP |
1971 | switch(bt_field_type_get_type_id(type)) { |
1972 | case BT_FIELD_TYPE_ID_INTEGER: | |
e98a2d6e PP |
1973 | /* Integer field is created field */ |
1974 | BT_MOVE(int_field, field); | |
c44c3e70 | 1975 | bt_get(type); |
e98a2d6e | 1976 | break; |
50842bdc PP |
1977 | case BT_FIELD_TYPE_ID_ENUM: |
1978 | int_field = bt_field_enumeration_get_container(field); | |
f6ccaed9 | 1979 | BT_ASSERT(int_field); |
50842bdc | 1980 | type = bt_field_get_type(int_field); |
f6ccaed9 | 1981 | BT_ASSERT(type); |
e98a2d6e PP |
1982 | break; |
1983 | default: | |
fdf0e7a0 PP |
1984 | BT_LOGF("Unexpected field type ID: " |
1985 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
1986 | notit, type, | |
3dca2276 | 1987 | bt_common_field_type_id_string( |
50842bdc | 1988 | bt_field_type_get_type_id(type))); |
0fbb9a9f | 1989 | abort(); |
e98a2d6e PP |
1990 | } |
1991 | ||
f6ccaed9 | 1992 | BT_ASSERT(int_field); |
3dca2276 | 1993 | ret = bt_field_integer_unsigned_set_value(int_field, value); |
f6ccaed9 | 1994 | BT_ASSERT(ret == 0); |
e98a2d6e | 1995 | stack_top(notit->stack)->index++; |
f45bfe88 | 1996 | *out_int_field = int_field; |
e98a2d6e | 1997 | BT_PUT(field); |
c44c3e70 | 1998 | BT_PUT(type); |
fdf0e7a0 | 1999 | |
c44c3e70 | 2000 | end_no_put: |
e98a2d6e PP |
2001 | return status; |
2002 | } | |
2003 | ||
5f870343 | 2004 | static |
50842bdc PP |
2005 | enum bt_btr_status btr_timestamp_end_cb(void *value, |
2006 | struct bt_field_type *type, void *data) | |
5f870343 | 2007 | { |
50842bdc PP |
2008 | enum bt_btr_status status; |
2009 | struct bt_field *field = NULL; | |
2010 | struct bt_notif_iter *notit = data; | |
5f870343 | 2011 | |
fdf0e7a0 PP |
2012 | BT_LOGV("`timestamp_end` unsigned integer function called from BTR: " |
2013 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2014 | "ft-id=%s", | |
2015 | notit, notit->btr, type, | |
3dca2276 | 2016 | bt_common_field_type_id_string( |
50842bdc | 2017 | bt_field_type_get_type_id(type))); |
5f870343 JG |
2018 | status = btr_unsigned_int_common(*((uint64_t *) value), type, data, |
2019 | &field); | |
2020 | ||
2021 | /* Set as the current packet's timestamp_end field. */ | |
2022 | BT_MOVE(notit->cur_timestamp_end, field); | |
2023 | return status; | |
2024 | } | |
2025 | ||
e98a2d6e | 2026 | static |
50842bdc PP |
2027 | enum bt_btr_status btr_unsigned_int_cb(uint64_t value, |
2028 | struct bt_field_type *type, void *data) | |
5f870343 | 2029 | { |
50842bdc PP |
2030 | struct bt_notif_iter *notit = data; |
2031 | enum bt_btr_status status = BT_BTR_STATUS_OK; | |
2032 | struct bt_field *field = NULL; | |
5f870343 JG |
2033 | struct field_cb_override *override; |
2034 | ||
fdf0e7a0 PP |
2035 | BT_LOGV("Unsigned integer function called from BTR: " |
2036 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2037 | "ft-id=%s, value=%" PRIu64, | |
2038 | notit, notit->btr, type, | |
3dca2276 | 2039 | bt_common_field_type_id_string( |
50842bdc | 2040 | bt_field_type_get_type_id(type)), |
fdf0e7a0 PP |
2041 | value); |
2042 | override = g_hash_table_lookup(notit->field_overrides, type); | |
5f870343 | 2043 | if (unlikely(override)) { |
fdf0e7a0 | 2044 | /* Override function logs errors */ |
5f870343 JG |
2045 | status = override->func(&value, type, override->data); |
2046 | goto end; | |
2047 | } | |
2048 | ||
2049 | status = btr_unsigned_int_common(value, type, data, &field); | |
50842bdc | 2050 | if (status != BT_BTR_STATUS_OK) { |
fdf0e7a0 | 2051 | /* btr_unsigned_int_common() logs errors */ |
5f870343 JG |
2052 | goto end; |
2053 | } | |
2054 | ||
f45bfe88 | 2055 | status = update_clock(notit, field); |
5f870343 JG |
2056 | BT_PUT(field); |
2057 | end: | |
2058 | return status; | |
2059 | } | |
2060 | ||
2061 | static | |
50842bdc PP |
2062 | enum bt_btr_status btr_signed_int_cb(int64_t value, |
2063 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2064 | { |
50842bdc PP |
2065 | enum bt_btr_status status = BT_BTR_STATUS_OK; |
2066 | struct bt_field *field = NULL; | |
2067 | struct bt_field *int_field = NULL; | |
2068 | struct bt_notif_iter *notit = data; | |
e98a2d6e PP |
2069 | int ret; |
2070 | ||
fdf0e7a0 PP |
2071 | BT_LOGV("Signed integer function called from BTR: " |
2072 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2073 | "ft-id=%s, value=%" PRId64, | |
2074 | notit, notit->btr, type, | |
3dca2276 | 2075 | bt_common_field_type_id_string( |
50842bdc | 2076 | bt_field_type_get_type_id(type)), |
fdf0e7a0 PP |
2077 | value); |
2078 | ||
5f870343 | 2079 | /* create next field */ |
e98a2d6e PP |
2080 | field = get_next_field(notit); |
2081 | if (!field) { | |
fdf0e7a0 | 2082 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
50842bdc | 2083 | status = BT_BTR_STATUS_ERROR; |
c44c3e70 | 2084 | goto end_no_put; |
e98a2d6e PP |
2085 | } |
2086 | ||
50842bdc PP |
2087 | switch(bt_field_type_get_type_id(type)) { |
2088 | case BT_FIELD_TYPE_ID_INTEGER: | |
e98a2d6e PP |
2089 | /* Integer field is created field */ |
2090 | BT_MOVE(int_field, field); | |
c44c3e70 | 2091 | bt_get(type); |
e98a2d6e | 2092 | break; |
50842bdc PP |
2093 | case BT_FIELD_TYPE_ID_ENUM: |
2094 | int_field = bt_field_enumeration_get_container(field); | |
f6ccaed9 | 2095 | BT_ASSERT(int_field); |
50842bdc | 2096 | type = bt_field_get_type(int_field); |
f6ccaed9 | 2097 | BT_ASSERT(type); |
e98a2d6e PP |
2098 | break; |
2099 | default: | |
fdf0e7a0 PP |
2100 | BT_LOGF("Unexpected field type ID: " |
2101 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
2102 | notit, type, | |
3dca2276 | 2103 | bt_common_field_type_id_string( |
50842bdc | 2104 | bt_field_type_get_type_id(type))); |
0fbb9a9f | 2105 | abort(); |
e98a2d6e PP |
2106 | } |
2107 | ||
f6ccaed9 | 2108 | BT_ASSERT(int_field); |
3dca2276 | 2109 | ret = bt_field_integer_signed_set_value(int_field, value); |
f6ccaed9 | 2110 | BT_ASSERT(!ret); |
e98a2d6e | 2111 | stack_top(notit->stack)->index++; |
f45bfe88 | 2112 | status = update_clock(notit, int_field); |
e98a2d6e PP |
2113 | BT_PUT(field); |
2114 | BT_PUT(int_field); | |
c44c3e70 | 2115 | BT_PUT(type); |
fdf0e7a0 | 2116 | |
c44c3e70 | 2117 | end_no_put: |
e98a2d6e PP |
2118 | return status; |
2119 | } | |
2120 | ||
2121 | static | |
50842bdc PP |
2122 | enum bt_btr_status btr_floating_point_cb(double value, |
2123 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2124 | { |
50842bdc PP |
2125 | enum bt_btr_status status = BT_BTR_STATUS_OK; |
2126 | struct bt_field *field = NULL; | |
2127 | struct bt_notif_iter *notit = data; | |
e98a2d6e PP |
2128 | int ret; |
2129 | ||
fdf0e7a0 PP |
2130 | BT_LOGV("Floating point number function called from BTR: " |
2131 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2132 | "ft-id=%s, value=%f", | |
2133 | notit, notit->btr, type, | |
3dca2276 | 2134 | bt_common_field_type_id_string( |
50842bdc | 2135 | bt_field_type_get_type_id(type)), |
fdf0e7a0 PP |
2136 | value); |
2137 | ||
e98a2d6e PP |
2138 | /* Create next field */ |
2139 | field = get_next_field(notit); | |
2140 | if (!field) { | |
fdf0e7a0 | 2141 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
50842bdc | 2142 | status = BT_BTR_STATUS_ERROR; |
e98a2d6e PP |
2143 | goto end; |
2144 | } | |
2145 | ||
50842bdc | 2146 | ret = bt_field_floating_point_set_value(field, value); |
f6ccaed9 | 2147 | BT_ASSERT(!ret); |
e98a2d6e PP |
2148 | stack_top(notit->stack)->index++; |
2149 | ||
2150 | end: | |
2151 | BT_PUT(field); | |
e98a2d6e PP |
2152 | return status; |
2153 | } | |
2154 | ||
2155 | static | |
50842bdc PP |
2156 | enum bt_btr_status btr_string_begin_cb( |
2157 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2158 | { |
50842bdc PP |
2159 | enum bt_btr_status status = BT_BTR_STATUS_OK; |
2160 | struct bt_field *field = NULL; | |
2161 | struct bt_notif_iter *notit = data; | |
e98a2d6e PP |
2162 | int ret; |
2163 | ||
fdf0e7a0 PP |
2164 | BT_LOGV("String (beginning) function called from BTR: " |
2165 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2166 | "ft-id=%s", | |
2167 | notit, notit->btr, type, | |
3dca2276 | 2168 | bt_common_field_type_id_string( |
50842bdc | 2169 | bt_field_type_get_type_id(type))); |
fdf0e7a0 | 2170 | |
e98a2d6e PP |
2171 | /* Create next field */ |
2172 | field = get_next_field(notit); | |
2173 | if (!field) { | |
fdf0e7a0 | 2174 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
50842bdc | 2175 | status = BT_BTR_STATUS_ERROR; |
e98a2d6e PP |
2176 | goto end; |
2177 | } | |
2178 | ||
2179 | /* | |
2180 | * Push on stack. Not a compound type per se, but we know that only | |
2181 | * btr_string_cb() may be called between this call and a subsequent | |
2182 | * call to btr_string_end_cb(). | |
2183 | */ | |
2184 | ret = stack_push(notit->stack, field); | |
2185 | if (ret) { | |
fdf0e7a0 PP |
2186 | BT_LOGE("Cannot push string field on stack: " |
2187 | "notit-addr=%p, field-addr=%p", notit, field); | |
50842bdc | 2188 | status = BT_BTR_STATUS_ERROR; |
e98a2d6e PP |
2189 | goto end; |
2190 | } | |
2191 | ||
e5df2ae3 JG |
2192 | /* |
2193 | * Initialize string field payload to an empty string since in the | |
2194 | * case of a length 0 string the btr_string_cb won't be called and | |
2195 | * we will end up with an unset string payload. | |
2196 | */ | |
50842bdc | 2197 | ret = bt_field_string_set_value(field, ""); |
e5df2ae3 | 2198 | if (ret) { |
fdf0e7a0 PP |
2199 | BT_LOGE("Cannot initialize string field's value to an empty string: " |
2200 | "notit-addr=%p, field-addr=%p, ret=%d", | |
2201 | notit, field, ret); | |
50842bdc | 2202 | status = BT_BTR_STATUS_ERROR; |
e5df2ae3 JG |
2203 | goto end; |
2204 | } | |
2205 | ||
e98a2d6e PP |
2206 | end: |
2207 | BT_PUT(field); | |
2208 | ||
2209 | return status; | |
2210 | } | |
2211 | ||
2212 | static | |
50842bdc PP |
2213 | enum bt_btr_status btr_string_cb(const char *value, |
2214 | size_t len, struct bt_field_type *type, void *data) | |
e98a2d6e | 2215 | { |
50842bdc PP |
2216 | enum bt_btr_status status = BT_BTR_STATUS_OK; |
2217 | struct bt_field *field = NULL; | |
2218 | struct bt_notif_iter *notit = data; | |
e98a2d6e PP |
2219 | int ret; |
2220 | ||
fdf0e7a0 PP |
2221 | BT_LOGV("String (substring) function called from BTR: " |
2222 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2223 | "ft-id=%s, string-length=%zu", | |
2224 | notit, notit->btr, type, | |
3dca2276 | 2225 | bt_common_field_type_id_string( |
50842bdc | 2226 | bt_field_type_get_type_id(type)), |
fdf0e7a0 PP |
2227 | len); |
2228 | ||
e98a2d6e PP |
2229 | /* Get string field */ |
2230 | field = stack_top(notit->stack)->base; | |
f6ccaed9 | 2231 | BT_ASSERT(field); |
e98a2d6e PP |
2232 | |
2233 | /* Append current string */ | |
50842bdc | 2234 | ret = bt_field_string_append_len(field, value, len); |
e98a2d6e | 2235 | if (ret) { |
fdf0e7a0 PP |
2236 | BT_LOGE("Cannot append substring to string field's value: " |
2237 | "notit-addr=%p, field-addr=%p, string-length=%zu, " | |
2238 | "ret=%d", notit, field, len, ret); | |
50842bdc | 2239 | status = BT_BTR_STATUS_ERROR; |
e98a2d6e PP |
2240 | goto end; |
2241 | } | |
2242 | ||
2243 | end: | |
2244 | return status; | |
2245 | } | |
2246 | ||
2247 | static | |
50842bdc PP |
2248 | enum bt_btr_status btr_string_end_cb( |
2249 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2250 | { |
50842bdc | 2251 | struct bt_notif_iter *notit = data; |
e98a2d6e | 2252 | |
fdf0e7a0 PP |
2253 | BT_LOGV("String (end) function called from BTR: " |
2254 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2255 | "ft-id=%s", | |
2256 | notit, notit->btr, type, | |
3dca2276 | 2257 | bt_common_field_type_id_string( |
50842bdc | 2258 | bt_field_type_get_type_id(type))); |
fdf0e7a0 | 2259 | |
e98a2d6e PP |
2260 | /* Pop string field */ |
2261 | stack_pop(notit->stack); | |
2262 | ||
2263 | /* Go to next field */ | |
2264 | stack_top(notit->stack)->index++; | |
50842bdc | 2265 | return BT_BTR_STATUS_OK; |
e98a2d6e PP |
2266 | } |
2267 | ||
50842bdc PP |
2268 | enum bt_btr_status btr_compound_begin_cb( |
2269 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2270 | { |
50842bdc PP |
2271 | enum bt_btr_status status = BT_BTR_STATUS_OK; |
2272 | struct bt_notif_iter *notit = data; | |
2273 | struct bt_field *field; | |
e98a2d6e PP |
2274 | int ret; |
2275 | ||
fdf0e7a0 PP |
2276 | BT_LOGV("Compound (beginning) function called from BTR: " |
2277 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2278 | "ft-id=%s", | |
2279 | notit, notit->btr, type, | |
3dca2276 | 2280 | bt_common_field_type_id_string( |
50842bdc | 2281 | bt_field_type_get_type_id(type))); |
fdf0e7a0 | 2282 | |
e98a2d6e PP |
2283 | /* Create field */ |
2284 | if (stack_empty(notit->stack)) { | |
2285 | /* Root: create dynamic scope field */ | |
50842bdc | 2286 | *notit->cur_dscope_field = bt_field_create(type); |
e98a2d6e PP |
2287 | field = *notit->cur_dscope_field; |
2288 | ||
2289 | /* | |
2290 | * Field will be put at the end of this function | |
2291 | * (stack_push() will take one reference, but this | |
2292 | * reference is lost upon the equivalent stack_pop() | |
2293 | * later), so also get it for our context to own it. | |
2294 | */ | |
2295 | bt_get(*notit->cur_dscope_field); | |
fdf0e7a0 PP |
2296 | |
2297 | if (!field) { | |
2298 | BT_LOGE("Cannot create compound field: " | |
2299 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
2300 | notit, type, | |
3dca2276 | 2301 | bt_common_field_type_id_string( |
50842bdc PP |
2302 | bt_field_type_get_type_id(type))); |
2303 | status = BT_BTR_STATUS_ERROR; | |
fdf0e7a0 PP |
2304 | goto end; |
2305 | } | |
e98a2d6e PP |
2306 | } else { |
2307 | field = get_next_field(notit); | |
fdf0e7a0 PP |
2308 | if (!field) { |
2309 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); | |
50842bdc | 2310 | status = BT_BTR_STATUS_ERROR; |
fdf0e7a0 PP |
2311 | goto end; |
2312 | } | |
e98a2d6e PP |
2313 | } |
2314 | ||
2315 | /* Push field */ | |
f6ccaed9 | 2316 | BT_ASSERT(field); |
e98a2d6e PP |
2317 | ret = stack_push(notit->stack, field); |
2318 | if (ret) { | |
fdf0e7a0 PP |
2319 | BT_LOGE("Cannot push compound field onto the stack: " |
2320 | "notit-addr=%p, ft-addr=%p, ft-id=%s, ret=%d", | |
2321 | notit, type, | |
3dca2276 | 2322 | bt_common_field_type_id_string( |
50842bdc | 2323 | bt_field_type_get_type_id(type)), |
fdf0e7a0 | 2324 | ret); |
50842bdc | 2325 | status = BT_BTR_STATUS_ERROR; |
e98a2d6e PP |
2326 | goto end; |
2327 | } | |
2328 | ||
2329 | end: | |
2330 | BT_PUT(field); | |
2331 | ||
2332 | return status; | |
2333 | } | |
2334 | ||
50842bdc PP |
2335 | enum bt_btr_status btr_compound_end_cb( |
2336 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2337 | { |
50842bdc | 2338 | struct bt_notif_iter *notit = data; |
e98a2d6e | 2339 | |
fdf0e7a0 PP |
2340 | BT_LOGV("Compound (end) function called from BTR: " |
2341 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2342 | "ft-id=%s", | |
2343 | notit, notit->btr, type, | |
3dca2276 | 2344 | bt_common_field_type_id_string( |
50842bdc | 2345 | bt_field_type_get_type_id(type))); |
f6ccaed9 | 2346 | BT_ASSERT(!stack_empty(notit->stack)); |
e98a2d6e PP |
2347 | |
2348 | /* Pop stack */ | |
2349 | stack_pop(notit->stack); | |
2350 | ||
2351 | /* If the stack is not empty, increment the base's index */ | |
2352 | if (!stack_empty(notit->stack)) { | |
2353 | stack_top(notit->stack)->index++; | |
2354 | } | |
2355 | ||
50842bdc | 2356 | return BT_BTR_STATUS_OK; |
e98a2d6e PP |
2357 | } |
2358 | ||
2359 | static | |
50842bdc PP |
2360 | struct bt_field *resolve_field(struct bt_notif_iter *notit, |
2361 | struct bt_field_path *path) | |
e98a2d6e | 2362 | { |
50842bdc | 2363 | struct bt_field *field = NULL; |
e98a2d6e PP |
2364 | unsigned int i; |
2365 | ||
fdf0e7a0 | 2366 | if (BT_LOG_ON_VERBOSE) { |
50842bdc | 2367 | GString *gstr = bt_field_path_string(path); |
fdf0e7a0 PP |
2368 | |
2369 | BT_LOGV("Resolving field path: notit-addr=%p, field-path=\"%s\"", | |
2370 | notit, gstr ? gstr->str : NULL); | |
2371 | ||
2372 | if (gstr) { | |
2373 | g_string_free(gstr, TRUE); | |
2374 | } | |
2375 | } | |
2376 | ||
50842bdc PP |
2377 | switch (bt_field_path_get_root_scope(path)) { |
2378 | case BT_SCOPE_TRACE_PACKET_HEADER: | |
e98a2d6e PP |
2379 | field = notit->dscopes.trace_packet_header; |
2380 | break; | |
50842bdc | 2381 | case BT_SCOPE_STREAM_PACKET_CONTEXT: |
e98a2d6e PP |
2382 | field = notit->dscopes.stream_packet_context; |
2383 | break; | |
50842bdc | 2384 | case BT_SCOPE_STREAM_EVENT_HEADER: |
e98a2d6e PP |
2385 | field = notit->dscopes.stream_event_header; |
2386 | break; | |
50842bdc | 2387 | case BT_SCOPE_STREAM_EVENT_CONTEXT: |
e98a2d6e PP |
2388 | field = notit->dscopes.stream_event_context; |
2389 | break; | |
50842bdc | 2390 | case BT_SCOPE_EVENT_CONTEXT: |
e98a2d6e PP |
2391 | field = notit->dscopes.event_context; |
2392 | break; | |
50842bdc | 2393 | case BT_SCOPE_EVENT_FIELDS: |
e98a2d6e PP |
2394 | field = notit->dscopes.event_payload; |
2395 | break; | |
2396 | default: | |
fdf0e7a0 PP |
2397 | BT_LOGF("Cannot resolve field path: unknown scope: " |
2398 | "notit-addr=%p, root-scope=%s", | |
3dca2276 | 2399 | notit, bt_common_scope_string( |
50842bdc | 2400 | bt_field_path_get_root_scope(path))); |
fdf0e7a0 | 2401 | abort(); |
e98a2d6e PP |
2402 | } |
2403 | ||
2404 | if (!field) { | |
fdf0e7a0 PP |
2405 | BT_LOGW("Cannot resolve field path: root field not found: " |
2406 | "notit-addr=%p, root-scope=%s", | |
3dca2276 | 2407 | notit, bt_common_scope_string( |
50842bdc | 2408 | bt_field_path_get_root_scope(path))); |
e98a2d6e PP |
2409 | goto end; |
2410 | } | |
2411 | ||
2412 | bt_get(field); | |
2413 | ||
50842bdc PP |
2414 | for (i = 0; i < bt_field_path_get_index_count(path); ++i) { |
2415 | struct bt_field *next_field = NULL; | |
2416 | struct bt_field_type *field_type; | |
2417 | int index = bt_field_path_get_index(path, i); | |
e98a2d6e | 2418 | |
50842bdc | 2419 | field_type = bt_field_get_type(field); |
f6ccaed9 | 2420 | BT_ASSERT(field_type); |
e98a2d6e PP |
2421 | |
2422 | if (is_struct_type(field_type)) { | |
50842bdc | 2423 | next_field = bt_field_structure_get_field_by_index( |
e98a2d6e PP |
2424 | field, index); |
2425 | } else if (is_variant_type(field_type)) { | |
2426 | next_field = | |
50842bdc | 2427 | bt_field_variant_get_current_field(field); |
e98a2d6e PP |
2428 | } |
2429 | ||
2430 | BT_PUT(field); | |
2431 | BT_PUT(field_type); | |
2432 | ||
2433 | if (!next_field) { | |
fdf0e7a0 PP |
2434 | BT_LOGW("Cannot find next field: " |
2435 | "notit-addr=%p, ft-addr=%p, ft-id=%s, index=%d", | |
2436 | notit, field_type, | |
3dca2276 | 2437 | bt_common_field_type_id_string( |
50842bdc | 2438 | bt_field_type_get_type_id(field_type)), |
fdf0e7a0 | 2439 | index); |
e98a2d6e PP |
2440 | goto end; |
2441 | } | |
2442 | ||
2443 | /* Move next field -> field */ | |
2444 | BT_MOVE(field, next_field); | |
2445 | } | |
2446 | ||
2447 | end: | |
2448 | return field; | |
2449 | } | |
2450 | ||
2451 | static | |
50842bdc | 2452 | int64_t btr_get_sequence_length_cb(struct bt_field_type *type, void *data) |
e98a2d6e PP |
2453 | { |
2454 | int64_t ret = -1; | |
2455 | int iret; | |
50842bdc PP |
2456 | struct bt_field *seq_field; |
2457 | struct bt_field_path *field_path; | |
2458 | struct bt_notif_iter *notit = data; | |
2459 | struct bt_field *length_field = NULL; | |
e98a2d6e PP |
2460 | uint64_t length; |
2461 | ||
50842bdc | 2462 | field_path = bt_field_type_sequence_get_length_field_path(type); |
f6ccaed9 | 2463 | BT_ASSERT(field_path); |
2cf1d51e JG |
2464 | length_field = resolve_field(notit, field_path); |
2465 | if (!length_field) { | |
fdf0e7a0 PP |
2466 | BT_LOGW("Cannot resolve sequence field type's length field path: " |
2467 | "notit-addr=%p, ft-addr=%p", | |
2468 | notit, type); | |
e98a2d6e PP |
2469 | goto end; |
2470 | } | |
2471 | ||
3dca2276 | 2472 | iret = bt_field_integer_unsigned_get_value(length_field, &length); |
e98a2d6e | 2473 | if (iret) { |
fdf0e7a0 PP |
2474 | BT_LOGE("Cannot get value of sequence length field: " |
2475 | "notit-addr=%p, field-addr=%p", | |
2476 | notit, length_field); | |
e98a2d6e PP |
2477 | goto end; |
2478 | } | |
2479 | ||
fdf0e7a0 | 2480 | seq_field = stack_top(notit->stack)->base; |
50842bdc | 2481 | iret = bt_field_sequence_set_length(seq_field, length_field); |
2cf1d51e | 2482 | if (iret) { |
fdf0e7a0 PP |
2483 | BT_LOGE("Cannot set sequence field's length field: " |
2484 | "notit-addr=%p, seq-field-addr=%p, " | |
2485 | "length-field-addr=%p, ", | |
2486 | notit, seq_field, length_field); | |
2cf1d51e JG |
2487 | goto end; |
2488 | } | |
fdf0e7a0 | 2489 | |
e98a2d6e PP |
2490 | ret = (int64_t) length; |
2491 | ||
2492 | end: | |
2cf1d51e | 2493 | BT_PUT(length_field); |
e98a2d6e PP |
2494 | BT_PUT(field_path); |
2495 | ||
2496 | return ret; | |
2497 | } | |
2498 | ||
2499 | static | |
50842bdc PP |
2500 | struct bt_field_type *btr_get_variant_type_cb( |
2501 | struct bt_field_type *type, void *data) | |
e98a2d6e | 2502 | { |
50842bdc PP |
2503 | struct bt_field_path *path; |
2504 | struct bt_notif_iter *notit = data; | |
2505 | struct bt_field *var_field; | |
2506 | struct bt_field *tag_field = NULL; | |
2507 | struct bt_field *selected_field = NULL; | |
2508 | struct bt_field_type *selected_field_type = NULL; | |
e98a2d6e | 2509 | |
50842bdc | 2510 | path = bt_field_type_variant_get_tag_field_path(type); |
f6ccaed9 | 2511 | BT_ASSERT(path); |
e98a2d6e PP |
2512 | tag_field = resolve_field(notit, path); |
2513 | if (!tag_field) { | |
fdf0e7a0 PP |
2514 | BT_LOGW("Cannot resolve variant field type's tag field path: " |
2515 | "notit-addr=%p, ft-addr=%p", | |
2516 | notit, type); | |
e98a2d6e PP |
2517 | goto end; |
2518 | } | |
2519 | ||
2520 | /* | |
2521 | * We found the enumeration tag field instance which should be | |
2522 | * able to select a current field for this variant. This | |
2523 | * callback function we're in is called _after_ | |
2524 | * compound_begin(), so the current stack top's base field is | |
2525 | * the variant field in question. We get the selected field here | |
2526 | * thanks to this tag field (thus creating the selected field), | |
2527 | * which will also provide us with its type. Then, this field | |
2528 | * will remain the current selected one until the next callback | |
2529 | * function call which is used to fill the current selected | |
2530 | * field. | |
2531 | */ | |
fdf0e7a0 | 2532 | var_field = stack_top(notit->stack)->base; |
50842bdc | 2533 | selected_field = bt_field_variant_get_field(var_field, tag_field); |
e98a2d6e | 2534 | if (!selected_field) { |
fdf0e7a0 PP |
2535 | BT_LOGW("Cannot get variant field's selection using tag field: " |
2536 | "notit-addr=%p, var-field-addr=%p, tag-field-addr=%p", | |
2537 | notit, var_field, tag_field); | |
e98a2d6e PP |
2538 | goto end; |
2539 | } | |
2540 | ||
50842bdc | 2541 | selected_field_type = bt_field_get_type(selected_field); |
e98a2d6e PP |
2542 | |
2543 | end: | |
2544 | BT_PUT(tag_field); | |
2545 | BT_PUT(selected_field); | |
f77ae72a | 2546 | BT_PUT(path); |
e98a2d6e PP |
2547 | |
2548 | return selected_field_type; | |
2549 | } | |
2550 | ||
1556a1af | 2551 | static |
50842bdc PP |
2552 | int set_event_clocks(struct bt_event *event, |
2553 | struct bt_notif_iter *notit) | |
1556a1af JG |
2554 | { |
2555 | int ret; | |
2556 | GHashTableIter iter; | |
50842bdc | 2557 | struct bt_clock_class *clock_class; |
1556a1af JG |
2558 | uint64_t *clock_state; |
2559 | ||
2560 | g_hash_table_iter_init(&iter, notit->clock_states); | |
2561 | ||
ac0c6bdd | 2562 | while (g_hash_table_iter_next(&iter, (gpointer) &clock_class, |
1556a1af | 2563 | (gpointer) &clock_state)) { |
50842bdc | 2564 | struct bt_clock_value *clock_value; |
1556a1af | 2565 | |
50842bdc | 2566 | clock_value = bt_clock_value_create(clock_class, |
ac0c6bdd | 2567 | *clock_state); |
1556a1af | 2568 | if (!clock_value) { |
fdf0e7a0 PP |
2569 | BT_LOGE("Cannot create clock value from clock class: " |
2570 | "notit-addr=%p, clock-class-addr=%p, " | |
2571 | "clock-class-name=\"%s\"", | |
2572 | notit, clock_class, | |
50842bdc | 2573 | bt_clock_class_get_name(clock_class)); |
1556a1af JG |
2574 | ret = -1; |
2575 | goto end; | |
2576 | } | |
50842bdc | 2577 | ret = bt_event_set_clock_value(event, clock_value); |
1556a1af JG |
2578 | bt_put(clock_value); |
2579 | if (ret) { | |
50842bdc PP |
2580 | struct bt_event_class *event_class = |
2581 | bt_event_get_class(event); | |
fdf0e7a0 | 2582 | |
f6ccaed9 | 2583 | BT_ASSERT(event_class); |
fdf0e7a0 PP |
2584 | BT_LOGE("Cannot set event's clock value: " |
2585 | "notit-addr=%p, event-addr=%p, " | |
2586 | "event-class-name=\"%s\", " | |
2587 | "event-class-id=%" PRId64 ", " | |
2588 | "clock-class-addr=%p, " | |
2589 | "clock-class-name=\"%s\", " | |
2590 | "clock-value-addr=%p", | |
2591 | notit, event, | |
50842bdc PP |
2592 | bt_event_class_get_name(event_class), |
2593 | bt_event_class_get_id(event_class), | |
fdf0e7a0 | 2594 | clock_class, |
50842bdc | 2595 | bt_clock_class_get_name(clock_class), |
fdf0e7a0 PP |
2596 | clock_value); |
2597 | bt_put(event_class); | |
1556a1af JG |
2598 | goto end; |
2599 | } | |
2600 | } | |
fdf0e7a0 | 2601 | |
1556a1af JG |
2602 | ret = 0; |
2603 | end: | |
2604 | return ret; | |
2605 | } | |
2606 | ||
78586d8a | 2607 | static |
50842bdc | 2608 | struct bt_event *create_event(struct bt_notif_iter *notit) |
e98a2d6e | 2609 | { |
e98a2d6e | 2610 | int ret; |
50842bdc | 2611 | struct bt_event *event; |
e98a2d6e | 2612 | |
fdf0e7a0 PP |
2613 | BT_LOGV("Creating event for event notification: " |
2614 | "notit-addr=%p, event-class-addr=%p, " | |
2615 | "event-class-name=\"%s\", " | |
2616 | "event-class-id=%" PRId64, | |
2617 | notit, notit->meta.event_class, | |
50842bdc PP |
2618 | bt_event_class_get_name(notit->meta.event_class), |
2619 | bt_event_class_get_id(notit->meta.event_class)); | |
fdf0e7a0 | 2620 | |
78586d8a | 2621 | /* Create event object. */ |
50842bdc | 2622 | event = bt_event_create(notit->meta.event_class); |
e98a2d6e | 2623 | if (!event) { |
fdf0e7a0 PP |
2624 | BT_LOGE("Cannot create event: " |
2625 | "notit-addr=%p, event-class-addr=%p, " | |
2626 | "event-class-name=\"%s\", " | |
2627 | "event-class-id=%" PRId64, | |
2628 | notit, notit->meta.event_class, | |
50842bdc PP |
2629 | bt_event_class_get_name(notit->meta.event_class), |
2630 | bt_event_class_get_id(notit->meta.event_class)); | |
e98a2d6e PP |
2631 | goto error; |
2632 | } | |
2633 | ||
78586d8a | 2634 | /* Set header, stream event context, context, and payload fields. */ |
50842bdc | 2635 | ret = bt_event_set_header(event, |
e98a2d6e PP |
2636 | notit->dscopes.stream_event_header); |
2637 | if (ret) { | |
fdf0e7a0 PP |
2638 | BT_LOGE("Cannot set event's header field: " |
2639 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2640 | "event-class-name=\"%s\", " | |
2641 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2642 | notit, event, notit->meta.event_class, | |
50842bdc PP |
2643 | bt_event_class_get_name(notit->meta.event_class), |
2644 | bt_event_class_get_id(notit->meta.event_class), | |
fdf0e7a0 | 2645 | notit->dscopes.stream_event_header); |
e98a2d6e PP |
2646 | goto error; |
2647 | } | |
2648 | ||
50842bdc | 2649 | ret = bt_event_set_stream_event_context(event, |
e98a2d6e PP |
2650 | notit->dscopes.stream_event_context); |
2651 | if (ret) { | |
fdf0e7a0 PP |
2652 | BT_LOGE("Cannot set event's context field: " |
2653 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2654 | "event-class-name=\"%s\", " | |
2655 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2656 | notit, event, notit->meta.event_class, | |
50842bdc PP |
2657 | bt_event_class_get_name(notit->meta.event_class), |
2658 | bt_event_class_get_id(notit->meta.event_class), | |
fdf0e7a0 | 2659 | notit->dscopes.stream_event_context); |
e98a2d6e PP |
2660 | goto error; |
2661 | } | |
2662 | ||
3dca2276 | 2663 | ret = bt_event_set_context(event, |
e98a2d6e PP |
2664 | notit->dscopes.event_context); |
2665 | if (ret) { | |
fdf0e7a0 PP |
2666 | BT_LOGE("Cannot set event's stream event context field: " |
2667 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2668 | "event-class-name=\"%s\", " | |
2669 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2670 | notit, event, notit->meta.event_class, | |
50842bdc PP |
2671 | bt_event_class_get_name(notit->meta.event_class), |
2672 | bt_event_class_get_id(notit->meta.event_class), | |
fdf0e7a0 | 2673 | notit->dscopes.event_context); |
e98a2d6e PP |
2674 | goto error; |
2675 | } | |
2676 | ||
3dca2276 | 2677 | ret = bt_event_set_payload(event, |
e98a2d6e PP |
2678 | notit->dscopes.event_payload); |
2679 | if (ret) { | |
fdf0e7a0 PP |
2680 | BT_LOGE("Cannot set event's payload field: " |
2681 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2682 | "event-class-name=\"%s\", " | |
2683 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2684 | notit, event, notit->meta.event_class, | |
50842bdc PP |
2685 | bt_event_class_get_name(notit->meta.event_class), |
2686 | bt_event_class_get_id(notit->meta.event_class), | |
fdf0e7a0 | 2687 | notit->dscopes.event_payload); |
e98a2d6e PP |
2688 | goto error; |
2689 | } | |
2690 | ||
1556a1af JG |
2691 | ret = set_event_clocks(event, notit); |
2692 | if (ret) { | |
fdf0e7a0 PP |
2693 | BT_LOGE("Cannot set event's clock values: " |
2694 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2695 | "event-class-name=\"%s\", " | |
2696 | "event-class-id=%" PRId64, | |
2697 | notit, event, notit->meta.event_class, | |
50842bdc PP |
2698 | bt_event_class_get_name(notit->meta.event_class), |
2699 | bt_event_class_get_id(notit->meta.event_class)); | |
1556a1af JG |
2700 | goto error; |
2701 | } | |
2702 | ||
78586d8a | 2703 | /* Associate with current packet. */ |
f6ccaed9 | 2704 | BT_ASSERT(notit->packet); |
50842bdc | 2705 | ret = bt_event_set_packet(event, notit->packet); |
e98a2d6e | 2706 | if (ret) { |
fdf0e7a0 PP |
2707 | BT_LOGE("Cannot set event's header field: " |
2708 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2709 | "event-class-name=\"%s\", " | |
2710 | "event-class-id=%" PRId64 ", packet-addr=%p", | |
2711 | notit, event, notit->meta.event_class, | |
50842bdc PP |
2712 | bt_event_class_get_name(notit->meta.event_class), |
2713 | bt_event_class_get_id(notit->meta.event_class), | |
fdf0e7a0 | 2714 | notit->packet); |
e98a2d6e PP |
2715 | goto error; |
2716 | } | |
2717 | ||
2718 | goto end; | |
fdf0e7a0 | 2719 | |
e98a2d6e PP |
2720 | error: |
2721 | BT_PUT(event); | |
fdf0e7a0 | 2722 | |
e98a2d6e PP |
2723 | end: |
2724 | return event; | |
2725 | } | |
2726 | ||
b92735af | 2727 | static |
50842bdc | 2728 | uint64_t get_cur_stream_instance_id(struct bt_notif_iter *notit) |
b92735af | 2729 | { |
50842bdc | 2730 | struct bt_field *stream_instance_id_field = NULL; |
b92735af PP |
2731 | uint64_t stream_instance_id = -1ULL; |
2732 | int ret; | |
2733 | ||
2734 | if (!notit->dscopes.trace_packet_header) { | |
2735 | goto end; | |
2736 | } | |
2737 | ||
50842bdc | 2738 | stream_instance_id_field = bt_field_structure_get_field_by_name( |
b92735af PP |
2739 | notit->dscopes.trace_packet_header, "stream_instance_id"); |
2740 | if (!stream_instance_id_field) { | |
2741 | goto end; | |
2742 | } | |
2743 | ||
3dca2276 | 2744 | ret = bt_field_integer_unsigned_get_value(stream_instance_id_field, |
b92735af PP |
2745 | &stream_instance_id); |
2746 | if (ret) { | |
2747 | stream_instance_id = -1ULL; | |
2748 | goto end; | |
2749 | } | |
2750 | ||
2751 | end: | |
2752 | bt_put(stream_instance_id_field); | |
2753 | return stream_instance_id; | |
2754 | } | |
2755 | ||
78586d8a | 2756 | static |
50842bdc | 2757 | int set_stream(struct bt_notif_iter *notit) |
e98a2d6e | 2758 | { |
af87daef | 2759 | int ret = 0; |
50842bdc | 2760 | struct bt_stream *stream = NULL; |
e98a2d6e | 2761 | |
fdf0e7a0 PP |
2762 | BT_LOGV("Calling user function (get stream): notit-addr=%p, " |
2763 | "stream-class-addr=%p, stream-class-name=\"%s\", " | |
2764 | "stream-class-id=%" PRId64, | |
2765 | notit, notit->meta.stream_class, | |
50842bdc PP |
2766 | bt_stream_class_get_name(notit->meta.stream_class), |
2767 | bt_stream_class_get_id(notit->meta.stream_class)); | |
af87daef | 2768 | stream = bt_get(notit->medium.medops.get_stream( |
b92735af PP |
2769 | notit->meta.stream_class, get_cur_stream_instance_id(notit), |
2770 | notit->medium.data)); | |
af87daef | 2771 | BT_LOGV("User function returned: stream-addr=%p", stream); |
e98a2d6e | 2772 | if (!stream) { |
fdf0e7a0 | 2773 | BT_LOGW_STR("User function failed to return a stream object for the given stream class."); |
af87daef PP |
2774 | ret = -1; |
2775 | goto end; | |
2776 | } | |
2777 | ||
2778 | if (notit->stream && stream != notit->stream) { | |
2779 | BT_LOGW("User function returned a different stream than the previous one for the same sequence of packets."); | |
2780 | ret = -1; | |
2781 | goto end; | |
2782 | } | |
2783 | ||
2784 | BT_MOVE(notit->stream, stream); | |
2785 | ||
2786 | end: | |
2787 | bt_put(stream); | |
2788 | return ret; | |
2789 | } | |
2790 | ||
2791 | static | |
50842bdc | 2792 | void create_packet(struct bt_notif_iter *notit) |
af87daef PP |
2793 | { |
2794 | int ret; | |
50842bdc | 2795 | struct bt_packet *packet = NULL; |
af87daef PP |
2796 | |
2797 | BT_LOGV("Creating packet for packet notification: " | |
2798 | "notit-addr=%p", notit); | |
fdf0e7a0 PP |
2799 | BT_LOGV("Creating packet from stream: " |
2800 | "notit-addr=%p, stream-addr=%p, " | |
2801 | "stream-class-addr=%p, " | |
2802 | "stream-class-name=\"%s\", " | |
2803 | "stream-class-id=%" PRId64, | |
af87daef | 2804 | notit, notit->stream, notit->meta.stream_class, |
50842bdc PP |
2805 | bt_stream_class_get_name(notit->meta.stream_class), |
2806 | bt_stream_class_get_id(notit->meta.stream_class)); | |
fdf0e7a0 | 2807 | |
e98a2d6e | 2808 | /* Create packet */ |
f42867e2 | 2809 | BT_ASSERT(notit->stream); |
50842bdc | 2810 | packet = bt_packet_create(notit->stream); |
e98a2d6e | 2811 | if (!packet) { |
fdf0e7a0 PP |
2812 | BT_LOGE("Cannot create packet from stream: " |
2813 | "notit-addr=%p, stream-addr=%p, " | |
2814 | "stream-class-addr=%p, " | |
2815 | "stream-class-name=\"%s\", " | |
2816 | "stream-class-id=%" PRId64, | |
af87daef | 2817 | notit, notit->stream, notit->meta.stream_class, |
50842bdc PP |
2818 | bt_stream_class_get_name(notit->meta.stream_class), |
2819 | bt_stream_class_get_id(notit->meta.stream_class)); | |
e98a2d6e PP |
2820 | goto error; |
2821 | } | |
2822 | ||
2823 | /* Set packet's context and header fields */ | |
2824 | if (notit->dscopes.trace_packet_header) { | |
50842bdc | 2825 | ret = bt_packet_set_header(packet, |
fdf0e7a0 | 2826 | notit->dscopes.trace_packet_header); |
e98a2d6e | 2827 | if (ret) { |
fdf0e7a0 PP |
2828 | BT_LOGE("Cannot set packet's header field: " |
2829 | "notit-addr=%p, packet-addr=%p, " | |
2830 | "stream-addr=%p, " | |
2831 | "stream-class-addr=%p, " | |
2832 | "stream-class-name=\"%s\", " | |
2833 | "stream-class-id=%" PRId64 ", " | |
2834 | "field-addr=%p", | |
af87daef | 2835 | notit, packet, notit->stream, notit->meta.stream_class, |
50842bdc PP |
2836 | bt_stream_class_get_name(notit->meta.stream_class), |
2837 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 | 2838 | notit->dscopes.trace_packet_header); |
e98a2d6e PP |
2839 | goto error; |
2840 | } | |
2841 | } | |
2842 | ||
2843 | if (notit->dscopes.stream_packet_context) { | |
50842bdc | 2844 | ret = bt_packet_set_context(packet, |
fdf0e7a0 | 2845 | notit->dscopes.stream_packet_context); |
e98a2d6e | 2846 | if (ret) { |
fdf0e7a0 PP |
2847 | BT_LOGE("Cannot set packet's context field: " |
2848 | "notit-addr=%p, packet-addr=%p, " | |
2849 | "stream-addr=%p, " | |
2850 | "stream-class-addr=%p, " | |
2851 | "stream-class-name=\"%s\", " | |
2852 | "stream-class-id=%" PRId64 ", " | |
2853 | "field-addr=%p", | |
af87daef | 2854 | notit, packet, notit->stream, notit->meta.stream_class, |
50842bdc PP |
2855 | bt_stream_class_get_name(notit->meta.stream_class), |
2856 | bt_stream_class_get_id(notit->meta.stream_class), | |
fdf0e7a0 | 2857 | notit->dscopes.trace_packet_header); |
e98a2d6e PP |
2858 | goto error; |
2859 | } | |
2860 | } | |
2861 | ||
2862 | goto end; | |
fdf0e7a0 | 2863 | |
e98a2d6e PP |
2864 | error: |
2865 | BT_PUT(packet); | |
fdf0e7a0 | 2866 | |
e98a2d6e PP |
2867 | end: |
2868 | BT_MOVE(notit->packet, packet); | |
2869 | } | |
2870 | ||
f42867e2 PP |
2871 | static |
2872 | void notify_new_stream(struct bt_notif_iter *notit, | |
2873 | struct bt_notification **notification) | |
2874 | { | |
2875 | struct bt_notification *ret = NULL; | |
2876 | int iret; | |
2877 | ||
2878 | /* Ask the user for the stream */ | |
2879 | iret = set_stream(notit); | |
2880 | if (iret) { | |
2881 | goto end; | |
2882 | } | |
2883 | ||
2884 | BT_ASSERT(notit->stream); | |
2885 | ret = bt_notification_stream_begin_create(notit->stream); | |
2886 | if (!ret) { | |
2887 | BT_LOGE("Cannot create stream beginning notification: " | |
2888 | "notit-addr=%p, stream-addr=%p", | |
2889 | notit, notit->stream); | |
2890 | return; | |
2891 | } | |
2892 | ||
2893 | end: | |
2894 | *notification = ret; | |
2895 | } | |
2896 | ||
2897 | static | |
2898 | void notify_end_of_stream(struct bt_notif_iter *notit, | |
2899 | struct bt_notification **notification) | |
2900 | { | |
2901 | struct bt_notification *ret; | |
2902 | ||
2903 | if (!notit->stream) { | |
2904 | BT_LOGE("Cannot create stream for stream notification: " | |
2905 | "notit-addr=%p", notit); | |
2906 | return; | |
2907 | } | |
2908 | ||
2909 | ret = bt_notification_stream_end_create(notit->stream); | |
2910 | if (!ret) { | |
2911 | BT_LOGE("Cannot create stream beginning notification: " | |
2912 | "notit-addr=%p, stream-addr=%p", | |
2913 | notit, notit->stream); | |
2914 | return; | |
2915 | } | |
2916 | *notification = ret; | |
2917 | } | |
2918 | ||
78586d8a | 2919 | static |
50842bdc | 2920 | void notify_new_packet(struct bt_notif_iter *notit, |
78586d8a | 2921 | struct bt_notification **notification) |
e98a2d6e | 2922 | { |
78586d8a | 2923 | struct bt_notification *ret; |
e98a2d6e | 2924 | |
78586d8a | 2925 | /* Initialize the iterator's current packet */ |
e98a2d6e PP |
2926 | create_packet(notit); |
2927 | if (!notit->packet) { | |
fdf0e7a0 PP |
2928 | BT_LOGE("Cannot create packet for packet notification: " |
2929 | "notit-addr=%p", notit); | |
78586d8a | 2930 | return; |
e98a2d6e PP |
2931 | } |
2932 | ||
ea0e619e | 2933 | ret = bt_notification_packet_begin_create(notit->packet); |
78586d8a | 2934 | if (!ret) { |
fdf0e7a0 PP |
2935 | BT_LOGE("Cannot create packet beginning notification: " |
2936 | "notit-addr=%p, packet-addr=%p", | |
2937 | notit, notit->packet); | |
78586d8a JG |
2938 | return; |
2939 | } | |
2940 | *notification = ret; | |
e98a2d6e PP |
2941 | } |
2942 | ||
78586d8a | 2943 | static |
50842bdc | 2944 | void notify_end_of_packet(struct bt_notif_iter *notit, |
78586d8a | 2945 | struct bt_notification **notification) |
e98a2d6e | 2946 | { |
78586d8a | 2947 | struct bt_notification *ret; |
e98a2d6e | 2948 | |
e98a2d6e | 2949 | if (!notit->packet) { |
78586d8a | 2950 | return; |
e98a2d6e PP |
2951 | } |
2952 | ||
78586d8a JG |
2953 | ret = bt_notification_packet_end_create(notit->packet); |
2954 | if (!ret) { | |
fdf0e7a0 PP |
2955 | BT_LOGE("Cannot create packet end notification: " |
2956 | "notit-addr=%p, packet-addr=%p", | |
2957 | notit, notit->packet); | |
78586d8a JG |
2958 | return; |
2959 | } | |
2960 | BT_PUT(notit->packet); | |
2961 | *notification = ret; | |
e98a2d6e PP |
2962 | } |
2963 | ||
78586d8a | 2964 | static |
50842bdc | 2965 | void notify_event(struct bt_notif_iter *notit, |
0982a26d | 2966 | struct bt_clock_class_priority_map *cc_prio_map, |
78586d8a | 2967 | struct bt_notification **notification) |
e98a2d6e | 2968 | { |
50842bdc | 2969 | struct bt_event *event = NULL; |
78586d8a | 2970 | struct bt_notification *ret = NULL; |
e98a2d6e | 2971 | |
174e773b PP |
2972 | /* Make sure that the event contains at least one bit of data */ |
2973 | if (notit->buf.at == notit->buf.last_eh_at) { | |
2974 | BT_LOGE("Cannot create empty event with 0 bits of data: " | |
2975 | "notit-addr=%p, packet-cur=%zu", | |
2976 | notit, packet_at(notit)); | |
2977 | goto end; | |
2978 | } | |
2979 | ||
e98a2d6e PP |
2980 | /* Create event */ |
2981 | event = create_event(notit); | |
2982 | if (!event) { | |
fdf0e7a0 PP |
2983 | BT_LOGE("Cannot create event for event notification: " |
2984 | "notit-addr=%p", notit); | |
78586d8a | 2985 | goto end; |
e98a2d6e | 2986 | } |
e98a2d6e | 2987 | |
0982a26d | 2988 | ret = bt_notification_event_create(event, cc_prio_map); |
78586d8a | 2989 | if (!ret) { |
fdf0e7a0 PP |
2990 | BT_LOGE("Cannot create event notification: " |
2991 | "notit-addr=%p, event-addr=%p, " | |
2992 | "cc-prio-map-addr=%p", | |
2993 | notit, event, cc_prio_map); | |
78586d8a | 2994 | goto end; |
e98a2d6e | 2995 | } |
78586d8a JG |
2996 | *notification = ret; |
2997 | end: | |
2998 | BT_PUT(event); | |
e98a2d6e PP |
2999 | } |
3000 | ||
5f870343 | 3001 | static |
50842bdc | 3002 | void init_trace_field_path_cache(struct bt_trace *trace, |
5f870343 JG |
3003 | struct trace_field_path_cache *trace_field_path_cache) |
3004 | { | |
3005 | int stream_id = -1; | |
3006 | int stream_instance_id = -1; | |
3007 | int i, count; | |
50842bdc | 3008 | struct bt_field_type *packet_header = NULL; |
5f870343 | 3009 | |
3dca2276 | 3010 | packet_header = bt_trace_get_packet_header_field_type(trace); |
5f870343 JG |
3011 | if (!packet_header) { |
3012 | goto end; | |
3013 | } | |
3014 | ||
50842bdc | 3015 | if (!bt_field_type_is_structure(packet_header)) { |
5f870343 JG |
3016 | goto end; |
3017 | } | |
3018 | ||
50842bdc | 3019 | count = bt_field_type_structure_get_field_count(packet_header); |
f6ccaed9 | 3020 | BT_ASSERT(count >= 0); |
5f870343 JG |
3021 | |
3022 | for (i = 0; (i < count && (stream_id == -1 || stream_instance_id == -1)); i++) { | |
3023 | int ret; | |
3024 | const char *field_name; | |
3025 | ||
50842bdc | 3026 | ret = bt_field_type_structure_get_field_by_index(packet_header, |
5f870343 JG |
3027 | &field_name, NULL, i); |
3028 | if (ret) { | |
fdf0e7a0 PP |
3029 | BT_LOGE("Cannot get structure field's field: " |
3030 | "field-addr=%p, index=%d", | |
3031 | packet_header, i); | |
5f870343 JG |
3032 | goto end; |
3033 | } | |
3034 | ||
3035 | if (stream_id == -1 && !strcmp(field_name, "stream_id")) { | |
3036 | stream_id = i; | |
3037 | } else if (stream_instance_id == -1 && | |
3038 | !strcmp(field_name, "stream_instance_id")) { | |
3039 | stream_instance_id = i; | |
3040 | } | |
3041 | } | |
fdf0e7a0 | 3042 | |
5f870343 JG |
3043 | end: |
3044 | trace_field_path_cache->stream_id = stream_id; | |
3045 | trace_field_path_cache->stream_instance_id = stream_instance_id; | |
3046 | BT_PUT(packet_header); | |
3047 | } | |
3048 | ||
c44c3e70 | 3049 | BT_HIDDEN |
50842bdc | 3050 | struct bt_notif_iter *bt_notif_iter_create(struct bt_trace *trace, |
e98a2d6e | 3051 | size_t max_request_sz, |
50842bdc | 3052 | struct bt_notif_iter_medium_ops medops, void *data) |
e98a2d6e | 3053 | { |
50842bdc PP |
3054 | struct bt_notif_iter *notit = NULL; |
3055 | struct bt_btr_cbs cbs = { | |
e98a2d6e PP |
3056 | .types = { |
3057 | .signed_int = btr_signed_int_cb, | |
3058 | .unsigned_int = btr_unsigned_int_cb, | |
3059 | .floating_point = btr_floating_point_cb, | |
3060 | .string_begin = btr_string_begin_cb, | |
3061 | .string = btr_string_cb, | |
3062 | .string_end = btr_string_end_cb, | |
3063 | .compound_begin = btr_compound_begin_cb, | |
3064 | .compound_end = btr_compound_end_cb, | |
3065 | }, | |
3066 | .query = { | |
3067 | .get_sequence_length = btr_get_sequence_length_cb, | |
3068 | .get_variant_type = btr_get_variant_type_cb, | |
3069 | }, | |
3070 | }; | |
3071 | ||
f6ccaed9 PP |
3072 | BT_ASSERT(trace); |
3073 | BT_ASSERT(medops.request_bytes); | |
3074 | BT_ASSERT(medops.get_stream); | |
fdf0e7a0 PP |
3075 | BT_LOGD("Creating CTF plugin notification iterator: " |
3076 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
3077 | "data=%p", | |
50842bdc PP |
3078 | trace, bt_trace_get_name(trace), max_request_sz, data); |
3079 | notit = g_new0(struct bt_notif_iter, 1); | |
e98a2d6e | 3080 | if (!notit) { |
fdf0e7a0 | 3081 | BT_LOGE_STR("Failed to allocate one CTF plugin notification iterator."); |
e98a2d6e PP |
3082 | goto end; |
3083 | } | |
c44c3e70 | 3084 | notit->clock_states = g_hash_table_new_full(g_direct_hash, |
fdf0e7a0 | 3085 | g_direct_equal, bt_put, g_free); |
c44c3e70 | 3086 | if (!notit->clock_states) { |
fdf0e7a0 | 3087 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
c44c3e70 JG |
3088 | goto error; |
3089 | } | |
35d47007 | 3090 | notit->meta.trace = bt_get(trace); |
e98a2d6e PP |
3091 | notit->medium.medops = medops; |
3092 | notit->medium.max_request_sz = max_request_sz; | |
3093 | notit->medium.data = data; | |
e98a2d6e PP |
3094 | notit->stack = stack_new(notit); |
3095 | if (!notit->stack) { | |
fdf0e7a0 | 3096 | BT_LOGE_STR("Failed to create field stack."); |
c44c3e70 | 3097 | goto error; |
e98a2d6e PP |
3098 | } |
3099 | ||
50842bdc | 3100 | notit->btr = bt_btr_create(cbs, notit); |
e98a2d6e | 3101 | if (!notit->btr) { |
fdf0e7a0 | 3102 | BT_LOGE_STR("Failed to create binary type reader (BTR)."); |
c44c3e70 | 3103 | goto error; |
e98a2d6e PP |
3104 | } |
3105 | ||
50842bdc | 3106 | bt_notif_iter_reset(notit); |
5f870343 JG |
3107 | init_trace_field_path_cache(trace, ¬it->trace_field_path_cache); |
3108 | notit->sc_field_path_caches = g_hash_table_new_full(g_direct_hash, | |
fdf0e7a0 | 3109 | g_direct_equal, bt_put, g_free); |
5f870343 | 3110 | if (!notit->sc_field_path_caches) { |
fdf0e7a0 | 3111 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
5f870343 JG |
3112 | goto error; |
3113 | } | |
3114 | ||
3115 | notit->field_overrides = g_hash_table_new_full(g_direct_hash, | |
fdf0e7a0 | 3116 | g_direct_equal, bt_put, g_free); |
5f870343 | 3117 | if (!notit->field_overrides) { |
fdf0e7a0 | 3118 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
5f870343 JG |
3119 | goto error; |
3120 | } | |
3121 | ||
fdf0e7a0 PP |
3122 | BT_LOGD("Created CTF plugin notification iterator: " |
3123 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
3124 | "data=%p, notit-addr=%p", | |
50842bdc | 3125 | trace, bt_trace_get_name(trace), max_request_sz, data, |
fdf0e7a0 | 3126 | notit); |
9e0c8dbb | 3127 | notit->cur_packet_offset = 0; |
fdf0e7a0 | 3128 | |
e98a2d6e PP |
3129 | end: |
3130 | return notit; | |
fdf0e7a0 | 3131 | |
c44c3e70 | 3132 | error: |
50842bdc | 3133 | bt_notif_iter_destroy(notit); |
c44c3e70 JG |
3134 | notit = NULL; |
3135 | goto end; | |
e98a2d6e PP |
3136 | } |
3137 | ||
50842bdc | 3138 | void bt_notif_iter_destroy(struct bt_notif_iter *notit) |
e98a2d6e PP |
3139 | { |
3140 | BT_PUT(notit->meta.trace); | |
3141 | BT_PUT(notit->meta.stream_class); | |
3142 | BT_PUT(notit->meta.event_class); | |
3143 | BT_PUT(notit->packet); | |
af87daef | 3144 | BT_PUT(notit->stream); |
5f870343 | 3145 | BT_PUT(notit->cur_timestamp_end); |
e98a2d6e PP |
3146 | put_all_dscopes(notit); |
3147 | ||
fdf0e7a0 PP |
3148 | BT_LOGD("Destroying CTF plugin notification iterator: addr=%p", notit); |
3149 | ||
e98a2d6e | 3150 | if (notit->stack) { |
fdf0e7a0 | 3151 | BT_LOGD_STR("Destroying field stack."); |
e98a2d6e PP |
3152 | stack_destroy(notit->stack); |
3153 | } | |
3154 | ||
3155 | if (notit->btr) { | |
fdf0e7a0 | 3156 | BT_LOGD("Destroying BTR: btr-addr=%p", notit->btr); |
50842bdc | 3157 | bt_btr_destroy(notit->btr); |
e98a2d6e PP |
3158 | } |
3159 | ||
c44c3e70 JG |
3160 | if (notit->clock_states) { |
3161 | g_hash_table_destroy(notit->clock_states); | |
3162 | } | |
5f870343 JG |
3163 | |
3164 | if (notit->sc_field_path_caches) { | |
3165 | g_hash_table_destroy(notit->sc_field_path_caches); | |
3166 | } | |
3167 | ||
3168 | if (notit->field_overrides) { | |
3169 | g_hash_table_destroy(notit->field_overrides); | |
3170 | } | |
fdf0e7a0 | 3171 | |
e98a2d6e PP |
3172 | g_free(notit); |
3173 | } | |
3174 | ||
50842bdc PP |
3175 | enum bt_notif_iter_status bt_notif_iter_get_next_notification( |
3176 | struct bt_notif_iter *notit, | |
0982a26d | 3177 | struct bt_clock_class_priority_map *cc_prio_map, |
78586d8a | 3178 | struct bt_notification **notification) |
e98a2d6e | 3179 | { |
50842bdc | 3180 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e | 3181 | |
f6ccaed9 PP |
3182 | BT_ASSERT(notit); |
3183 | BT_ASSERT(notification); | |
e98a2d6e | 3184 | |
f42867e2 PP |
3185 | if (notit->state == STATE_DONE) { |
3186 | status = BT_NOTIF_ITER_STATUS_EOF; | |
3187 | goto end; | |
3188 | } | |
3189 | ||
fdf0e7a0 PP |
3190 | BT_LOGV("Getting next notification: notit-addr=%p, cc-prio-map-addr=%p", |
3191 | notit, cc_prio_map); | |
3192 | ||
e98a2d6e PP |
3193 | while (true) { |
3194 | status = handle_state(notit); | |
50842bdc PP |
3195 | if (status == BT_NOTIF_ITER_STATUS_AGAIN) { |
3196 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_AGAIN."); | |
7cdc2bab MD |
3197 | goto end; |
3198 | } | |
50842bdc PP |
3199 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
3200 | if (status == BT_NOTIF_ITER_STATUS_EOF) { | |
f42867e2 PP |
3201 | enum state next_state = notit->state; |
3202 | ||
50842bdc | 3203 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_EOF."); |
f42867e2 PP |
3204 | |
3205 | if (notit->packet) { | |
3206 | notify_end_of_packet(notit, notification); | |
3207 | } else { | |
3208 | notify_end_of_stream(notit, notification); | |
3209 | next_state = STATE_DONE; | |
3210 | } | |
3211 | ||
3212 | if (!*notification) { | |
3213 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
3214 | goto end; | |
3215 | } | |
3216 | ||
3217 | status = BT_NOTIF_ITER_STATUS_OK; | |
3218 | notit->state = next_state; | |
3219 | goto end; | |
e98a2d6e | 3220 | } else { |
fdf0e7a0 PP |
3221 | BT_LOGW("Cannot handle state: " |
3222 | "notit-addr=%p, state=%s", | |
3223 | notit, state_string(notit->state)); | |
e98a2d6e PP |
3224 | } |
3225 | goto end; | |
3226 | } | |
3227 | ||
3228 | switch (notit->state) { | |
f42867e2 PP |
3229 | case STATE_EMIT_NOTIF_NEW_STREAM: |
3230 | /* notify_new_stream() logs errors */ | |
3231 | notify_new_stream(notit, notification); | |
3232 | if (!*notification) { | |
3233 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
3234 | } | |
3235 | notit->stream_begin_emitted = true; | |
3236 | goto end; | |
e98a2d6e | 3237 | case STATE_EMIT_NOTIF_NEW_PACKET: |
fdf0e7a0 | 3238 | /* notify_new_packet() logs errors */ |
e98a2d6e PP |
3239 | notify_new_packet(notit, notification); |
3240 | if (!*notification) { | |
50842bdc | 3241 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
3242 | } |
3243 | goto end; | |
3244 | case STATE_EMIT_NOTIF_EVENT: | |
fdf0e7a0 | 3245 | /* notify_event() logs errors */ |
0982a26d | 3246 | notify_event(notit, cc_prio_map, notification); |
e98a2d6e | 3247 | if (!*notification) { |
50842bdc | 3248 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
3249 | } |
3250 | goto end; | |
3251 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
5f870343 JG |
3252 | /* Update clock with timestamp_end field. */ |
3253 | if (notit->cur_timestamp_end) { | |
50842bdc PP |
3254 | enum bt_btr_status btr_status; |
3255 | struct bt_field_type *field_type = | |
3256 | bt_field_get_type( | |
5f870343 JG |
3257 | notit->cur_timestamp_end); |
3258 | ||
f6ccaed9 | 3259 | BT_ASSERT(field_type); |
f45bfe88 PP |
3260 | btr_status = update_clock(notit, |
3261 | notit->cur_timestamp_end); | |
5f870343 | 3262 | BT_PUT(field_type); |
50842bdc | 3263 | if (btr_status != BT_BTR_STATUS_OK) { |
fdf0e7a0 PP |
3264 | BT_LOGW("Cannot update stream's clock value: " |
3265 | "notit-addr=%p", notit); | |
50842bdc | 3266 | status = BT_NOTIF_ITER_STATUS_ERROR; |
5f870343 JG |
3267 | goto end; |
3268 | } | |
3269 | } | |
3270 | ||
fdf0e7a0 | 3271 | /* notify_end_of_packet() logs errors */ |
e98a2d6e PP |
3272 | notify_end_of_packet(notit, notification); |
3273 | if (!*notification) { | |
50842bdc | 3274 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
3275 | } |
3276 | goto end; | |
3277 | default: | |
3278 | /* Non-emitting state: continue */ | |
3279 | break; | |
3280 | } | |
3281 | } | |
3282 | ||
3283 | end: | |
3284 | return status; | |
3285 | } | |
87187cbf PP |
3286 | |
3287 | BT_HIDDEN | |
50842bdc PP |
3288 | enum bt_notif_iter_status bt_notif_iter_get_packet_header_context_fields( |
3289 | struct bt_notif_iter *notit, | |
3290 | struct bt_field **packet_header_field, | |
3291 | struct bt_field **packet_context_field) | |
87187cbf | 3292 | { |
9e0c8dbb | 3293 | int ret; |
50842bdc | 3294 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
87187cbf | 3295 | |
f6ccaed9 | 3296 | BT_ASSERT(notit); |
87187cbf PP |
3297 | |
3298 | if (notit->state == STATE_EMIT_NOTIF_NEW_PACKET) { | |
3299 | /* We're already there */ | |
3300 | goto set_fields; | |
3301 | } | |
3302 | ||
3303 | while (true) { | |
3304 | status = handle_state(notit); | |
50842bdc PP |
3305 | if (status == BT_NOTIF_ITER_STATUS_AGAIN) { |
3306 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_AGAIN."); | |
87187cbf PP |
3307 | goto end; |
3308 | } | |
50842bdc PP |
3309 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
3310 | if (status == BT_NOTIF_ITER_STATUS_EOF) { | |
3311 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_EOF."); | |
87187cbf | 3312 | } else { |
fdf0e7a0 PP |
3313 | BT_LOGW("Cannot handle state: " |
3314 | "notit-addr=%p, state=%s", | |
3315 | notit, state_string(notit->state)); | |
87187cbf PP |
3316 | } |
3317 | goto end; | |
3318 | } | |
3319 | ||
3320 | switch (notit->state) { | |
3321 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
3322 | /* | |
3323 | * Packet header and context fields are | |
3324 | * potentially decoded (or they don't exist). | |
3325 | */ | |
3326 | goto set_fields; | |
3327 | case STATE_INIT: | |
f42867e2 | 3328 | case STATE_EMIT_NOTIF_NEW_STREAM: |
87187cbf PP |
3329 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: |
3330 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
3331 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
3332 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
3333 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
3334 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
3335 | /* Non-emitting state: continue */ | |
3336 | break; | |
3337 | default: | |
3338 | /* | |
3339 | * We should never get past the | |
3340 | * STATE_EMIT_NOTIF_NEW_PACKET state. | |
3341 | */ | |
fdf0e7a0 PP |
3342 | BT_LOGF("Unexpected state: notit-addr=%p, state=%s", |
3343 | notit, state_string(notit->state)); | |
0fbb9a9f | 3344 | abort(); |
87187cbf PP |
3345 | } |
3346 | } | |
3347 | ||
3348 | set_fields: | |
3349 | if (packet_header_field) { | |
3350 | *packet_header_field = bt_get(notit->dscopes.trace_packet_header); | |
3351 | } | |
3352 | ||
3353 | if (packet_context_field) { | |
3354 | *packet_context_field = bt_get(notit->dscopes.stream_packet_context); | |
3355 | } | |
3356 | ||
9e0c8dbb JG |
3357 | ret = set_current_packet_content_sizes(notit); |
3358 | if (ret) { | |
50842bdc | 3359 | status = BT_NOTIF_ITER_STATUS_ERROR; |
9e0c8dbb JG |
3360 | goto end; |
3361 | } | |
87187cbf PP |
3362 | end: |
3363 | return status; | |
3364 | } | |
6de92955 PP |
3365 | |
3366 | BT_HIDDEN | |
50842bdc | 3367 | void bt_notif_iter_set_medops_data(struct bt_notif_iter *notit, |
6de92955 PP |
3368 | void *medops_data) |
3369 | { | |
f6ccaed9 | 3370 | BT_ASSERT(notit); |
6de92955 PP |
3371 | notit->medium.data = medops_data; |
3372 | } | |
9e0c8dbb JG |
3373 | |
3374 | BT_HIDDEN | |
50842bdc PP |
3375 | enum bt_notif_iter_status bt_notif_iter_seek( |
3376 | struct bt_notif_iter *notit, off_t offset) | |
9e0c8dbb | 3377 | { |
50842bdc PP |
3378 | enum bt_notif_iter_status ret = BT_NOTIF_ITER_STATUS_OK; |
3379 | enum bt_notif_iter_medium_status medium_status; | |
9e0c8dbb | 3380 | |
f6ccaed9 | 3381 | BT_ASSERT(notit); |
9e0c8dbb JG |
3382 | if (offset < 0) { |
3383 | BT_LOGE("Cannot seek to negative offset: offset=%jd", offset); | |
50842bdc | 3384 | ret = BT_NOTIF_ITER_STATUS_INVAL; |
9e0c8dbb JG |
3385 | goto end; |
3386 | } | |
3387 | ||
3388 | if (!notit->medium.medops.seek) { | |
50842bdc | 3389 | ret = BT_NOTIF_ITER_STATUS_UNSUPPORTED; |
9e0c8dbb JG |
3390 | BT_LOGD("Aborting seek as the iterator's underlying media does not implement seek support."); |
3391 | goto end; | |
3392 | } | |
3393 | ||
3394 | medium_status = notit->medium.medops.seek( | |
50842bdc | 3395 | BT_NOTIF_ITER_SEEK_WHENCE_SET, offset, |
9e0c8dbb | 3396 | notit->medium.data); |
50842bdc PP |
3397 | if (medium_status != BT_NOTIF_ITER_MEDIUM_STATUS_OK) { |
3398 | if (medium_status == BT_NOTIF_ITER_MEDIUM_STATUS_EOF) { | |
3399 | ret = BT_NOTIF_ITER_STATUS_EOF; | |
9e0c8dbb | 3400 | } else { |
50842bdc | 3401 | ret = BT_NOTIF_ITER_STATUS_ERROR; |
9e0c8dbb JG |
3402 | goto end; |
3403 | } | |
3404 | } | |
3405 | ||
50842bdc | 3406 | bt_notif_iter_reset(notit); |
9e0c8dbb JG |
3407 | notit->cur_packet_offset = offset; |
3408 | end: | |
3409 | return ret; | |
3410 | } | |
3411 | ||
3412 | BT_HIDDEN | |
50842bdc PP |
3413 | off_t bt_notif_iter_get_current_packet_offset( |
3414 | struct bt_notif_iter *notit) | |
9e0c8dbb | 3415 | { |
f6ccaed9 | 3416 | BT_ASSERT(notit); |
9e0c8dbb JG |
3417 | return notit->cur_packet_offset; |
3418 | } | |
3419 | ||
3420 | BT_HIDDEN | |
50842bdc PP |
3421 | off_t bt_notif_iter_get_current_packet_size( |
3422 | struct bt_notif_iter *notit) | |
9e0c8dbb | 3423 | { |
f6ccaed9 | 3424 | BT_ASSERT(notit); |
9e0c8dbb JG |
3425 | return notit->cur_packet_size; |
3426 | } |