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e98a2d6e PP |
1 | /* |
2 | * Babeltrace - CTF notification iterator | |
06a626b8 | 3 | * |
e98a2d6e PP |
4 | * Copyright (c) 2015-2016 EfficiOS Inc. and Linux Foundation |
5 | * Copyright (c) 2015-2016 Philippe Proulx <pproulx@efficios.com> | |
6 | * | |
7 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
8 | * of this software and associated documentation files (the "Software"), to deal | |
9 | * in the Software without restriction, including without limitation the rights | |
10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
11 | * copies of the Software, and to permit persons to whom the Software is | |
12 | * furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice shall be included in | |
15 | * all copies or substantial portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
20 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
23 | * SOFTWARE. | |
24 | */ | |
25 | ||
fdf0e7a0 PP |
26 | #define BT_LOG_TAG "PLUGIN-CTF-NOTIF-ITER" |
27 | #include "logging.h" | |
28 | ||
e98a2d6e PP |
29 | #include <stdint.h> |
30 | #include <inttypes.h> | |
31 | #include <stdio.h> | |
32 | #include <stddef.h> | |
33 | #include <stdbool.h> | |
34 | #include <assert.h> | |
35 | #include <string.h> | |
36 | #include <babeltrace/ctf-ir/field-types.h> | |
fdf0e7a0 | 37 | #include <babeltrace/ctf-ir/field-types-internal.h> |
e98a2d6e | 38 | #include <babeltrace/ctf-ir/field-path.h> |
fdf0e7a0 | 39 | #include <babeltrace/ctf-ir/field-path-internal.h> |
e98a2d6e PP |
40 | #include <babeltrace/ctf-ir/fields.h> |
41 | #include <babeltrace/ctf-ir/stream-class.h> | |
42 | #include <babeltrace/ctf-ir/packet.h> | |
43 | #include <babeltrace/ctf-ir/stream.h> | |
ac0c6bdd | 44 | #include <babeltrace/ctf-ir/clock-class.h> |
e98a2d6e | 45 | #include <babeltrace/ctf-ir/event-class.h> |
b2e0c907 PP |
46 | #include <babeltrace/graph/notification-packet.h> |
47 | #include <babeltrace/graph/notification-event.h> | |
48 | #include <babeltrace/graph/notification-stream.h> | |
599faa1c | 49 | #include <babeltrace/graph/clock-class-priority-map.h> |
e98a2d6e PP |
50 | #include <babeltrace/ref.h> |
51 | #include <glib.h> | |
0fbb9a9f | 52 | #include <stdlib.h> |
e98a2d6e | 53 | |
06a626b8 JG |
54 | #include "notif-iter.h" |
55 | #include "../btr/btr.h" | |
e98a2d6e | 56 | |
e98a2d6e PP |
57 | struct bt_ctf_notif_iter; |
58 | ||
59 | /* A visit stack entry */ | |
60 | struct stack_entry { | |
61 | /* | |
62 | * Current base field, one of: | |
63 | * | |
64 | * * string | |
65 | * * structure | |
66 | * * array | |
67 | * * sequence | |
68 | * * variant | |
69 | * | |
70 | * Field is owned by this. | |
71 | */ | |
72 | struct bt_ctf_field *base; | |
73 | ||
74 | /* index of next field to set */ | |
75 | size_t index; | |
76 | }; | |
77 | ||
78 | /* Visit stack */ | |
79 | struct stack { | |
80 | /* Entries (struct stack_entry *) (top is last element) */ | |
81 | GPtrArray *entries; | |
e98a2d6e PP |
82 | }; |
83 | ||
84 | /* State */ | |
85 | enum state { | |
86 | STATE_INIT, | |
87 | STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN, | |
88 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
89 | STATE_AFTER_TRACE_PACKET_HEADER, | |
90 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN, | |
91 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
92 | STATE_AFTER_STREAM_PACKET_CONTEXT, | |
93 | STATE_EMIT_NOTIF_NEW_PACKET, | |
94 | STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN, | |
95 | STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE, | |
96 | STATE_AFTER_STREAM_EVENT_HEADER, | |
97 | STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN, | |
98 | STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE, | |
99 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN, | |
100 | STATE_DSCOPE_EVENT_CONTEXT_CONTINUE, | |
101 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, | |
102 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
103 | STATE_EMIT_NOTIF_EVENT, | |
104 | STATE_EMIT_NOTIF_END_OF_PACKET, | |
105 | STATE_SKIP_PACKET_PADDING, | |
106 | }; | |
107 | ||
5f870343 JG |
108 | struct trace_field_path_cache { |
109 | /* | |
110 | * Indexes of the stream_id and stream_instance_id field in the packet | |
111 | * header structure, -1 if unset. | |
112 | */ | |
113 | int stream_id; | |
114 | int stream_instance_id; | |
115 | }; | |
116 | ||
117 | struct stream_class_field_path_cache { | |
118 | /* | |
119 | * Indexes of the v and id fields in the stream event header structure, | |
120 | * -1 if unset. | |
121 | */ | |
122 | int v; | |
123 | int id; | |
124 | ||
125 | /* | |
126 | * index of the timestamp_end, packet_size and content_size fields in | |
127 | * the stream packet context structure. Set to -1 if the fields were | |
128 | * not found. | |
129 | */ | |
130 | int timestamp_end; | |
131 | int packet_size; | |
132 | int content_size; | |
133 | }; | |
134 | ||
135 | struct field_cb_override { | |
136 | enum bt_ctf_btr_status (* func)(void *value, | |
137 | struct bt_ctf_field_type *type, void *data); | |
138 | void *data; | |
139 | }; | |
140 | ||
e98a2d6e PP |
141 | /* CTF notification iterator */ |
142 | struct bt_ctf_notif_iter { | |
143 | /* Visit stack */ | |
144 | struct stack *stack; | |
145 | ||
e98a2d6e PP |
146 | /* |
147 | * Current dynamic scope field pointer. | |
148 | * | |
149 | * This is set when a dynamic scope field is first created by | |
150 | * btr_compound_begin_cb(). It points to one of the fields in | |
151 | * dscopes below. | |
152 | */ | |
153 | struct bt_ctf_field **cur_dscope_field; | |
154 | ||
155 | /* Trace and classes (owned by this) */ | |
156 | struct { | |
157 | struct bt_ctf_trace *trace; | |
158 | struct bt_ctf_stream_class *stream_class; | |
159 | struct bt_ctf_event_class *event_class; | |
160 | } meta; | |
161 | ||
162 | /* Current packet (NULL if not created yet) */ | |
163 | struct bt_ctf_packet *packet; | |
164 | ||
5184a1d6 PP |
165 | /* Current stream (NULL if not set yet) */ |
166 | struct bt_ctf_stream *stream; | |
167 | ||
5f870343 JG |
168 | /* |
169 | * Current timestamp_end field (to consider before switching packets). | |
170 | */ | |
171 | struct bt_ctf_field *cur_timestamp_end; | |
172 | ||
e98a2d6e PP |
173 | /* Database of current dynamic scopes (owned by this) */ |
174 | struct { | |
175 | struct bt_ctf_field *trace_packet_header; | |
176 | struct bt_ctf_field *stream_packet_context; | |
177 | struct bt_ctf_field *stream_event_header; | |
178 | struct bt_ctf_field *stream_event_context; | |
179 | struct bt_ctf_field *event_context; | |
180 | struct bt_ctf_field *event_payload; | |
181 | } dscopes; | |
182 | ||
5f870343 JG |
183 | /* |
184 | * Special field overrides. | |
185 | * | |
186 | * Overrides are used to implement the behaviours of special fields such | |
187 | * as "timestamp_end" (which must be ignored until the end of the | |
188 | * packet), "id" (event id) which can be present multiple times and must | |
189 | * be updated multiple time. | |
190 | * | |
191 | * This should be used to implement the behaviour of integer fields | |
192 | * mapped to clocks and other "tagged" fields (in CTF 2). | |
193 | * | |
194 | * bt_ctf_field_type to struct field_cb_override | |
195 | */ | |
196 | GHashTable *field_overrides; | |
197 | ||
e98a2d6e PP |
198 | /* Current state */ |
199 | enum state state; | |
200 | ||
2cf1d51e | 201 | /* Current medium buffer data */ |
e98a2d6e PP |
202 | struct { |
203 | /* Last address provided by medium */ | |
204 | const uint8_t *addr; | |
205 | ||
206 | /* Buffer size provided by medium (bytes) */ | |
207 | size_t sz; | |
208 | ||
209 | /* Offset within whole packet of addr (bits) */ | |
210 | size_t packet_offset; | |
211 | ||
212 | /* Current position from addr (bits) */ | |
213 | size_t at; | |
9b876b7b PP |
214 | |
215 | /* Position of the last event header from addr (bits) */ | |
216 | size_t last_eh_at; | |
e98a2d6e PP |
217 | } buf; |
218 | ||
219 | /* Binary type reader */ | |
220 | struct bt_ctf_btr *btr; | |
221 | ||
2cf1d51e | 222 | /* Current medium data */ |
e98a2d6e PP |
223 | struct { |
224 | struct bt_ctf_notif_iter_medium_ops medops; | |
225 | size_t max_request_sz; | |
226 | void *data; | |
227 | } medium; | |
228 | ||
229 | /* Current packet size (bits) (-1 if unknown) */ | |
e7a4393b | 230 | int64_t cur_packet_size; |
e98a2d6e PP |
231 | |
232 | /* Current content size (bits) (-1 if unknown) */ | |
e7a4393b | 233 | int64_t cur_content_size; |
c44c3e70 | 234 | |
ac0c6bdd | 235 | /* bt_ctf_clock_class to uint64_t. */ |
c44c3e70 | 236 | GHashTable *clock_states; |
5f870343 JG |
237 | |
238 | /* | |
239 | * Cache of the trace-constant field paths (event header type) | |
240 | * associated to the current trace. | |
241 | */ | |
242 | struct trace_field_path_cache trace_field_path_cache; | |
243 | ||
244 | /* | |
245 | * Field path cache associated with the current stream class. | |
246 | * Ownership of this structure belongs to the field_path_caches HT. | |
247 | */ | |
248 | struct stream_class_field_path_cache *cur_sc_field_path_cache; | |
249 | ||
250 | /* bt_ctf_stream_class to struct stream_class_field_path_cache. */ | |
251 | GHashTable *sc_field_path_caches; | |
e98a2d6e PP |
252 | }; |
253 | ||
fdf0e7a0 PP |
254 | static inline |
255 | const char *state_string(enum state state) | |
256 | { | |
257 | switch (state) { | |
258 | case STATE_INIT: | |
259 | return "STATE_INIT"; | |
260 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
261 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN"; | |
262 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
263 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE"; | |
264 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
265 | return "STATE_AFTER_TRACE_PACKET_HEADER"; | |
266 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
267 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN"; | |
268 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
269 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE"; | |
270 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
271 | return "STATE_AFTER_STREAM_PACKET_CONTEXT"; | |
272 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
273 | return "STATE_EMIT_NOTIF_NEW_PACKET"; | |
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"; | |
296 | case STATE_SKIP_PACKET_PADDING: | |
297 | return "STATE_SKIP_PACKET_PADDING"; | |
298 | default: | |
299 | return "(unknown)"; | |
300 | } | |
301 | } | |
302 | ||
2cf1d51e JG |
303 | static |
304 | int bt_ctf_notif_iter_switch_packet(struct bt_ctf_notif_iter *notit); | |
305 | ||
5f870343 JG |
306 | static |
307 | enum bt_ctf_btr_status btr_timestamp_end_cb(void *value, | |
308 | struct bt_ctf_field_type *type, void *data); | |
309 | ||
e98a2d6e PP |
310 | static |
311 | void stack_entry_free_func(gpointer data) | |
312 | { | |
313 | struct stack_entry *entry = data; | |
314 | ||
315 | bt_put(entry->base); | |
316 | g_free(entry); | |
317 | } | |
318 | ||
319 | static | |
320 | struct stack *stack_new(struct bt_ctf_notif_iter *notit) | |
321 | { | |
322 | struct stack *stack = NULL; | |
323 | ||
324 | stack = g_new0(struct stack, 1); | |
325 | if (!stack) { | |
fdf0e7a0 | 326 | BT_LOGE_STR("Failed to allocate one stack."); |
e98a2d6e PP |
327 | goto error; |
328 | } | |
329 | ||
330 | stack->entries = g_ptr_array_new_with_free_func(stack_entry_free_func); | |
331 | if (!stack->entries) { | |
fdf0e7a0 | 332 | BT_LOGE_STR("Failed to allocate a GPtrArray."); |
e98a2d6e PP |
333 | goto error; |
334 | } | |
335 | ||
fdf0e7a0 | 336 | BT_LOGD("Created stack: notit-addr=%p, stack-addr=%p", notit, stack); |
e98a2d6e | 337 | return stack; |
fdf0e7a0 | 338 | |
e98a2d6e PP |
339 | error: |
340 | g_free(stack); | |
e98a2d6e PP |
341 | return NULL; |
342 | } | |
343 | ||
344 | static | |
345 | void stack_destroy(struct stack *stack) | |
346 | { | |
347 | assert(stack); | |
fdf0e7a0 | 348 | BT_LOGD("Destroying stack: addr=%p", stack); |
e98a2d6e PP |
349 | g_ptr_array_free(stack->entries, TRUE); |
350 | g_free(stack); | |
351 | } | |
352 | ||
353 | static | |
354 | int stack_push(struct stack *stack, struct bt_ctf_field *base) | |
355 | { | |
356 | int ret = 0; | |
357 | struct stack_entry *entry; | |
e98a2d6e PP |
358 | |
359 | assert(stack); | |
360 | assert(base); | |
fdf0e7a0 PP |
361 | BT_LOGV("Pushing base field on stack: stack-addr=%p, " |
362 | "stack-size-before=%u, stack-size-after=%u", | |
363 | stack, stack->entries->len, stack->entries->len + 1); | |
e98a2d6e PP |
364 | entry = g_new0(struct stack_entry, 1); |
365 | if (!entry) { | |
fdf0e7a0 | 366 | BT_LOGE_STR("Failed to allocate one stack entry."); |
e98a2d6e PP |
367 | ret = -1; |
368 | goto end; | |
369 | } | |
370 | ||
371 | entry->base = bt_get(base); | |
372 | g_ptr_array_add(stack->entries, entry); | |
373 | ||
374 | end: | |
375 | return ret; | |
376 | } | |
377 | ||
378 | static inline | |
379 | unsigned int stack_size(struct stack *stack) | |
380 | { | |
381 | assert(stack); | |
382 | ||
383 | return stack->entries->len; | |
384 | } | |
385 | ||
386 | static | |
387 | void stack_pop(struct stack *stack) | |
388 | { | |
389 | assert(stack); | |
390 | assert(stack_size(stack)); | |
fdf0e7a0 PP |
391 | BT_LOGV("Popping from stack: " |
392 | "stack-addr=%p, stack-size-before=%u, stack-size-after=%u", | |
393 | stack, stack->entries->len, stack->entries->len - 1); | |
e98a2d6e PP |
394 | g_ptr_array_remove_index(stack->entries, stack->entries->len - 1); |
395 | } | |
396 | ||
397 | static inline | |
398 | struct stack_entry *stack_top(struct stack *stack) | |
399 | { | |
400 | assert(stack); | |
401 | assert(stack_size(stack)); | |
402 | ||
403 | return g_ptr_array_index(stack->entries, stack->entries->len - 1); | |
404 | } | |
405 | ||
406 | static inline | |
407 | bool stack_empty(struct stack *stack) | |
408 | { | |
409 | return stack_size(stack) == 0; | |
410 | } | |
411 | ||
412 | static | |
413 | void stack_clear(struct stack *stack) | |
414 | { | |
415 | assert(stack); | |
416 | ||
417 | if (!stack_empty(stack)) { | |
fdf0e7a0 PP |
418 | BT_LOGV("Clearing stack: stack-addr=%p, stack-size=%u", |
419 | stack, stack->entries->len); | |
e98a2d6e PP |
420 | g_ptr_array_remove_range(stack->entries, 0, stack_size(stack)); |
421 | } | |
422 | ||
423 | assert(stack_empty(stack)); | |
424 | } | |
425 | ||
426 | static inline | |
427 | enum bt_ctf_notif_iter_status notif_iter_status_from_m_status( | |
428 | enum bt_ctf_notif_iter_medium_status m_status) | |
429 | { | |
dc77b521 | 430 | return (int) m_status; |
e98a2d6e PP |
431 | } |
432 | ||
433 | static inline | |
434 | size_t buf_size_bits(struct bt_ctf_notif_iter *notit) | |
435 | { | |
fdf0e7a0 | 436 | return notit->buf.sz * 8; |
e98a2d6e PP |
437 | } |
438 | ||
439 | static inline | |
440 | size_t buf_available_bits(struct bt_ctf_notif_iter *notit) | |
441 | { | |
442 | return buf_size_bits(notit) - notit->buf.at; | |
443 | } | |
444 | ||
445 | static inline | |
446 | size_t packet_at(struct bt_ctf_notif_iter *notit) | |
447 | { | |
448 | return notit->buf.packet_offset + notit->buf.at; | |
449 | } | |
450 | ||
e98a2d6e PP |
451 | static inline |
452 | void buf_consume_bits(struct bt_ctf_notif_iter *notit, size_t incr) | |
453 | { | |
fdf0e7a0 PP |
454 | BT_LOGV("Advancing cursor: notit-addr=%p, cur-before=%zu, cur-after=%zu", |
455 | notit, notit->buf.at, notit->buf.at + incr); | |
e98a2d6e PP |
456 | notit->buf.at += incr; |
457 | } | |
458 | ||
e98a2d6e | 459 | static |
2cf1d51e JG |
460 | enum bt_ctf_notif_iter_status request_medium_bytes( |
461 | struct bt_ctf_notif_iter *notit) | |
e98a2d6e | 462 | { |
fdf0e7a0 PP |
463 | uint8_t *buffer_addr = NULL; |
464 | size_t buffer_sz = 0; | |
e98a2d6e PP |
465 | enum bt_ctf_notif_iter_medium_status m_status; |
466 | ||
fdf0e7a0 PP |
467 | BT_LOGV("Calling user function (request bytes): notit-addr=%p, " |
468 | "request-size=%zu", notit, notit->medium.max_request_sz); | |
e98a2d6e PP |
469 | m_status = notit->medium.medops.request_bytes( |
470 | notit->medium.max_request_sz, &buffer_addr, | |
471 | &buffer_sz, notit->medium.data); | |
fdf0e7a0 PP |
472 | BT_LOGV("User function returned: status=%s, buf-addr=%p, buf-size=%zu", |
473 | bt_ctf_notif_iter_medium_status_string(m_status), | |
474 | buffer_addr, buffer_sz); | |
e98a2d6e PP |
475 | if (m_status == BT_CTF_NOTIF_ITER_MEDIUM_STATUS_OK) { |
476 | assert(buffer_sz != 0); | |
477 | ||
478 | /* New packet offset is old one + old size (in bits) */ | |
479 | notit->buf.packet_offset += buf_size_bits(notit); | |
480 | ||
481 | /* Restart at the beginning of the new medium buffer */ | |
482 | notit->buf.at = 0; | |
bb8744a7 | 483 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
484 | |
485 | /* New medium buffer size */ | |
486 | notit->buf.sz = buffer_sz; | |
487 | ||
488 | /* New medium buffer address */ | |
489 | notit->buf.addr = buffer_addr; | |
fdf0e7a0 PP |
490 | |
491 | BT_LOGV("User function returned new bytes: " | |
492 | "packet-offset=%zu, cur=%zu, size=%zu, addr=%p", | |
493 | notit->buf.packet_offset, notit->buf.at, | |
494 | notit->buf.sz, notit->buf.addr); | |
495 | BT_LOGV_MEM(buffer_addr, buffer_sz, "Returned bytes at %p:", | |
496 | buffer_addr); | |
7116f6c0 PP |
497 | } else if (m_status == BT_CTF_NOTIF_ITER_MEDIUM_STATUS_EOF) { |
498 | struct bt_ctf_field_type *eh_ft = NULL; | |
499 | struct bt_ctf_field_type *sec_ft = NULL; | |
500 | struct bt_ctf_field_type *ec_ft = NULL; | |
501 | ||
502 | /* | |
503 | * User returned end of stream: validate that we're not | |
504 | * in the middle of a packet header, packet context, or | |
505 | * event. | |
506 | */ | |
507 | if (notit->state == STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN) { | |
508 | /* Beginning of packet: always valid */ | |
509 | goto good_state; | |
510 | } | |
511 | ||
512 | if (!notit->meta.stream_class) { | |
513 | goto bad_state; | |
514 | } | |
515 | ||
516 | eh_ft = bt_ctf_stream_class_get_event_header_type( | |
517 | notit->meta.stream_class); | |
518 | sec_ft = bt_ctf_stream_class_get_event_context_type( | |
519 | notit->meta.stream_class); | |
520 | ||
521 | if (notit->state == STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN) { | |
522 | /* | |
523 | * Beginning of event's header is only valid if | |
524 | * the packet is not supposed to have a specific | |
525 | * size (whole packet sequence has in fact only | |
526 | * one packet). | |
527 | */ | |
528 | if (notit->cur_packet_size == -1) { | |
529 | goto good_state; | |
530 | } | |
531 | } | |
532 | ||
533 | if (notit->state == STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN) { | |
534 | /* | |
535 | * Beginning of event's stream event context is | |
536 | * only valid if the packet is not supposed to | |
537 | * have a specific size (whole packet sequence | |
538 | * has in fact only one packet), and there's no | |
539 | * event header. | |
540 | */ | |
541 | if (notit->cur_packet_size == -1 && !eh_ft) { | |
542 | goto good_state; | |
543 | } | |
544 | } | |
545 | ||
546 | if (!notit->meta.event_class) { | |
547 | goto bad_state; | |
548 | } | |
549 | ||
550 | ec_ft = bt_ctf_event_class_get_context_type( | |
551 | notit->meta.event_class); | |
552 | ||
553 | if (notit->state == STATE_DSCOPE_EVENT_CONTEXT_BEGIN) { | |
554 | /* | |
555 | * Beginning of event's context is only valid if | |
556 | * the packet is not supposed to have a specific | |
557 | * size (whole packet sequence has in fact only | |
558 | * one packet), and there's no event header and | |
559 | * no stream event context. | |
560 | */ | |
561 | if (notit->cur_packet_size == -1 && !eh_ft && !sec_ft) { | |
562 | goto good_state; | |
563 | } | |
564 | } | |
565 | ||
566 | if (notit->state == STATE_DSCOPE_EVENT_PAYLOAD_BEGIN) { | |
567 | /* | |
568 | * Beginning of event's context is only valid if | |
569 | * the packet is not supposed to have a specific | |
570 | * size (whole packet sequence has in fact only | |
571 | * one packet), and there's no event header, no | |
572 | * stream event context, and no event context. | |
573 | */ | |
574 | if (notit->cur_packet_size == -1 && !eh_ft && !sec_ft && | |
575 | !ec_ft) { | |
576 | goto good_state; | |
577 | } | |
578 | } | |
579 | ||
580 | bad_state: | |
581 | /* All other states are invalid */ | |
582 | BT_LOGW("User function returned %s, but notification iterator is in an unexpected state: " | |
583 | "state=%s", | |
584 | bt_ctf_notif_iter_medium_status_string(m_status), | |
585 | state_string(notit->state)); | |
586 | m_status = BT_CTF_NOTIF_ITER_MEDIUM_STATUS_ERROR; | |
587 | ||
588 | good_state: | |
589 | bt_put(eh_ft); | |
590 | bt_put(sec_ft); | |
591 | bt_put(ec_ft); | |
fdf0e7a0 PP |
592 | } else if (m_status < 0) { |
593 | BT_LOGW("User function failed: status=%s", | |
594 | bt_ctf_notif_iter_medium_status_string(m_status)); | |
e98a2d6e PP |
595 | } |
596 | ||
597 | return notif_iter_status_from_m_status(m_status); | |
598 | } | |
599 | ||
600 | static inline | |
601 | enum bt_ctf_notif_iter_status buf_ensure_available_bits( | |
602 | struct bt_ctf_notif_iter *notit) | |
603 | { | |
604 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
605 | ||
606 | if (buf_available_bits(notit) == 0) { | |
607 | /* | |
608 | * This _cannot_ return BT_CTF_NOTIF_ITER_STATUS_OK | |
609 | * _and_ no bits. | |
610 | */ | |
611 | status = request_medium_bytes(notit); | |
612 | } | |
613 | ||
614 | return status; | |
615 | } | |
616 | ||
617 | static | |
618 | enum bt_ctf_notif_iter_status read_dscope_begin_state( | |
619 | struct bt_ctf_notif_iter *notit, | |
620 | struct bt_ctf_field_type *dscope_field_type, | |
621 | enum state done_state, enum state continue_state, | |
622 | struct bt_ctf_field **dscope_field) | |
623 | { | |
624 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
625 | enum bt_ctf_btr_status btr_status; | |
626 | size_t consumed_bits; | |
627 | ||
628 | status = buf_ensure_available_bits(notit); | |
629 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
fdf0e7a0 PP |
630 | if (status < 0) { |
631 | BT_LOGW("Cannot ensure that buffer has at least one byte: " | |
632 | "notif-addr=%p, status=%s", | |
633 | notit, bt_ctf_notif_iter_status_string(status)); | |
634 | } else { | |
635 | BT_LOGV("Cannot ensure that buffer has at least one byte: " | |
636 | "notif-addr=%p, status=%s", | |
637 | notit, bt_ctf_notif_iter_status_string(status)); | |
638 | } | |
639 | ||
e98a2d6e PP |
640 | goto end; |
641 | } | |
642 | ||
643 | bt_put(*dscope_field); | |
644 | notit->cur_dscope_field = dscope_field; | |
fdf0e7a0 PP |
645 | BT_LOGV("Starting BTR: notit-addr=%p, btr-addr=%p, ft-addr=%p", |
646 | notit, notit->btr, dscope_field_type); | |
e98a2d6e PP |
647 | consumed_bits = bt_ctf_btr_start(notit->btr, dscope_field_type, |
648 | notit->buf.addr, notit->buf.at, packet_at(notit), | |
649 | notit->buf.sz, &btr_status); | |
fdf0e7a0 | 650 | BT_LOGV("BTR consumed bits: size=%zu", consumed_bits); |
e98a2d6e PP |
651 | |
652 | switch (btr_status) { | |
653 | case BT_CTF_BTR_STATUS_OK: | |
654 | /* type was read completely */ | |
fdf0e7a0 | 655 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
656 | notit->state = done_state; |
657 | break; | |
658 | case BT_CTF_BTR_STATUS_EOF: | |
fdf0e7a0 | 659 | BT_LOGV_STR("BTR needs more data to decode field completely."); |
e98a2d6e PP |
660 | notit->state = continue_state; |
661 | break; | |
662 | default: | |
fdf0e7a0 PP |
663 | BT_LOGW("BTR failed to start: notit-addr=%p, btr-addr=%p, " |
664 | "status=%s", notit, notit->btr, | |
665 | bt_ctf_btr_status_string(btr_status)); | |
e98a2d6e PP |
666 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
667 | goto end; | |
668 | } | |
669 | ||
670 | /* Consume bits now since we know we're not in an error state */ | |
671 | buf_consume_bits(notit, consumed_bits); | |
672 | ||
673 | end: | |
674 | return status; | |
675 | } | |
676 | ||
677 | static | |
678 | enum bt_ctf_notif_iter_status read_dscope_continue_state( | |
679 | struct bt_ctf_notif_iter *notit, enum state done_state) | |
680 | { | |
681 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
682 | enum bt_ctf_btr_status btr_status; | |
683 | size_t consumed_bits; | |
684 | ||
685 | status = buf_ensure_available_bits(notit); | |
686 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
fdf0e7a0 PP |
687 | if (status < 0) { |
688 | BT_LOGW("Cannot ensure that buffer has at least one byte: " | |
689 | "notif-addr=%p, status=%s", | |
690 | notit, bt_ctf_notif_iter_status_string(status)); | |
691 | } else { | |
692 | BT_LOGV("Cannot ensure that buffer has at least one byte: " | |
693 | "notif-addr=%p, status=%s", | |
694 | notit, bt_ctf_notif_iter_status_string(status)); | |
695 | } | |
696 | ||
e98a2d6e PP |
697 | goto end; |
698 | } | |
699 | ||
fdf0e7a0 PP |
700 | BT_LOGV("Continuing BTR: notit-addr=%p, btr-addr=%p", |
701 | notit, notit->btr); | |
e98a2d6e | 702 | consumed_bits = bt_ctf_btr_continue(notit->btr, notit->buf.addr, |
fdf0e7a0 PP |
703 | notit->buf.sz, &btr_status); |
704 | BT_LOGV("BTR consumed bits: size=%zu", consumed_bits); | |
e98a2d6e PP |
705 | |
706 | switch (btr_status) { | |
707 | case BT_CTF_BTR_STATUS_OK: | |
78586d8a | 708 | /* Type was read completely. */ |
fdf0e7a0 | 709 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
710 | notit->state = done_state; |
711 | break; | |
712 | case BT_CTF_BTR_STATUS_EOF: | |
78586d8a | 713 | /* Stay in this continue state. */ |
fdf0e7a0 | 714 | BT_LOGV_STR("BTR needs more data to decode field completely."); |
e98a2d6e PP |
715 | break; |
716 | default: | |
fdf0e7a0 PP |
717 | BT_LOGW("BTR failed to continue: notit-addr=%p, btr-addr=%p, " |
718 | "status=%s", notit, notit->btr, | |
719 | bt_ctf_btr_status_string(btr_status)); | |
e98a2d6e PP |
720 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
721 | goto end; | |
722 | } | |
723 | ||
78586d8a | 724 | /* Consume bits now since we know we're not in an error state. */ |
e98a2d6e | 725 | buf_consume_bits(notit, consumed_bits); |
e98a2d6e PP |
726 | end: |
727 | return status; | |
728 | } | |
729 | ||
730 | static | |
731 | void put_event_dscopes(struct bt_ctf_notif_iter *notit) | |
732 | { | |
fdf0e7a0 | 733 | BT_LOGV_STR("Putting event header field."); |
e98a2d6e | 734 | BT_PUT(notit->dscopes.stream_event_header); |
fdf0e7a0 | 735 | BT_LOGV_STR("Putting stream event context field."); |
e98a2d6e | 736 | BT_PUT(notit->dscopes.stream_event_context); |
fdf0e7a0 | 737 | BT_LOGV_STR("Putting event context field."); |
e98a2d6e | 738 | BT_PUT(notit->dscopes.event_context); |
fdf0e7a0 | 739 | BT_LOGV_STR("Putting event payload field."); |
e98a2d6e PP |
740 | BT_PUT(notit->dscopes.event_payload); |
741 | } | |
742 | ||
743 | static | |
744 | void put_all_dscopes(struct bt_ctf_notif_iter *notit) | |
745 | { | |
fdf0e7a0 | 746 | BT_LOGV_STR("Putting packet header field."); |
e98a2d6e | 747 | BT_PUT(notit->dscopes.trace_packet_header); |
fdf0e7a0 | 748 | BT_LOGV_STR("Putting packet context field."); |
e98a2d6e PP |
749 | BT_PUT(notit->dscopes.stream_packet_context); |
750 | put_event_dscopes(notit); | |
751 | } | |
752 | ||
753 | static | |
754 | enum bt_ctf_notif_iter_status read_packet_header_begin_state( | |
755 | struct bt_ctf_notif_iter *notit) | |
756 | { | |
2cf1d51e JG |
757 | struct bt_ctf_field_type *packet_header_type = NULL; |
758 | enum bt_ctf_notif_iter_status ret = BT_CTF_NOTIF_ITER_STATUS_OK; | |
e98a2d6e | 759 | |
2cf1d51e | 760 | if (bt_ctf_notif_iter_switch_packet(notit)) { |
fdf0e7a0 | 761 | BT_LOGW("Cannot switch packet: notit-addr=%p", notit); |
2cf1d51e JG |
762 | ret = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
763 | goto end; | |
764 | } | |
e98a2d6e | 765 | |
2cf1d51e | 766 | /* Packet header type is common to the whole trace. */ |
e98a2d6e | 767 | packet_header_type = bt_ctf_trace_get_packet_header_type( |
78586d8a | 768 | notit->meta.trace); |
e98a2d6e | 769 | if (!packet_header_type) { |
835b2d10 | 770 | notit->state = STATE_AFTER_TRACE_PACKET_HEADER; |
e98a2d6e PP |
771 | goto end; |
772 | } | |
773 | ||
fdf0e7a0 PP |
774 | BT_LOGV("Decoding packet header field:" |
775 | "notit-addr=%p, trace-addr=%p, trace-name=\"%s\", ft-addr=%p", | |
776 | notit, notit->meta.trace, | |
777 | bt_ctf_trace_get_name(notit->meta.trace), packet_header_type); | |
2cf1d51e | 778 | ret = read_dscope_begin_state(notit, packet_header_type, |
fdf0e7a0 PP |
779 | STATE_AFTER_TRACE_PACKET_HEADER, |
780 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
781 | ¬it->dscopes.trace_packet_header); | |
782 | if (ret < 0) { | |
783 | BT_LOGW("Cannot decode packet header field: " | |
784 | "notit-addr=%p, trace-addr=%p, " | |
785 | "trace-name=\"%s\", ft-addr=%p", | |
786 | notit, notit->meta.trace, | |
787 | bt_ctf_trace_get_name(notit->meta.trace), | |
788 | packet_header_type); | |
789 | } | |
e98a2d6e PP |
790 | end: |
791 | BT_PUT(packet_header_type); | |
2cf1d51e | 792 | return ret; |
e98a2d6e PP |
793 | } |
794 | ||
795 | static | |
796 | enum bt_ctf_notif_iter_status read_packet_header_continue_state( | |
797 | struct bt_ctf_notif_iter *notit) | |
798 | { | |
799 | return read_dscope_continue_state(notit, | |
78586d8a | 800 | STATE_AFTER_TRACE_PACKET_HEADER); |
e98a2d6e PP |
801 | } |
802 | ||
803 | static inline | |
804 | bool is_struct_type(struct bt_ctf_field_type *field_type) | |
805 | { | |
78586d8a | 806 | return bt_ctf_field_type_get_type_id(field_type) == |
1487a16a | 807 | BT_CTF_FIELD_TYPE_ID_STRUCT; |
e98a2d6e PP |
808 | } |
809 | ||
810 | static inline | |
811 | bool is_variant_type(struct bt_ctf_field_type *field_type) | |
812 | { | |
78586d8a | 813 | return bt_ctf_field_type_get_type_id(field_type) == |
1487a16a | 814 | BT_CTF_FIELD_TYPE_ID_VARIANT; |
e98a2d6e PP |
815 | } |
816 | ||
5f870343 JG |
817 | static |
818 | struct stream_class_field_path_cache * | |
819 | create_stream_class_field_path_cache_entry( | |
820 | struct bt_ctf_notif_iter *notit, | |
821 | struct bt_ctf_stream_class *stream_class) | |
822 | { | |
823 | int v = -1; | |
824 | int id = -1; | |
825 | int timestamp_end = -1; | |
826 | int packet_size = -1; | |
827 | int content_size = -1; | |
828 | struct stream_class_field_path_cache *cache_entry = g_new0( | |
829 | struct stream_class_field_path_cache, 1); | |
830 | struct bt_ctf_field_type *event_header = NULL, *packet_context = NULL; | |
831 | ||
832 | if (!cache_entry) { | |
fdf0e7a0 | 833 | BT_LOGE_STR("Failed to allocate one stream class field path cache."); |
5f870343 JG |
834 | goto end; |
835 | } | |
836 | ||
837 | event_header = bt_ctf_stream_class_get_event_header_type(stream_class); | |
838 | if (event_header && bt_ctf_field_type_is_structure(event_header)) { | |
839 | int i, count; | |
840 | ||
841 | count = bt_ctf_field_type_structure_get_field_count( | |
fdf0e7a0 PP |
842 | event_header); |
843 | assert(count >= 0); | |
844 | ||
5f870343 JG |
845 | for (i = 0; i < count; i++) { |
846 | int ret; | |
847 | const char *name; | |
848 | ||
849 | ret = bt_ctf_field_type_structure_get_field( | |
850 | event_header, &name, NULL, i); | |
851 | if (ret) { | |
fdf0e7a0 PP |
852 | BT_LOGE("Cannot get event header structure field type's field: " |
853 | "notit-addr=%p, stream-class-addr=%p, " | |
854 | "stream-class-name=\"%s\", " | |
855 | "stream-class-id=%" PRId64 ", " | |
856 | "ft-addr=%p, index=%d", | |
857 | notit, stream_class, | |
858 | bt_ctf_stream_class_get_name(stream_class), | |
859 | bt_ctf_stream_class_get_id(stream_class), | |
860 | event_header, i); | |
5f870343 JG |
861 | goto error; |
862 | } | |
863 | ||
864 | if (v != -1 && id != -1) { | |
865 | break; | |
866 | } | |
fdf0e7a0 PP |
867 | |
868 | if (v == -1 && strcmp(name, "v") == 0) { | |
5f870343 JG |
869 | v = i; |
870 | } else if (id == -1 && !strcmp(name, "id")) { | |
871 | id = i; | |
872 | } | |
873 | } | |
874 | } | |
875 | ||
876 | packet_context = bt_ctf_stream_class_get_packet_context_type( | |
877 | stream_class); | |
878 | if (packet_context && bt_ctf_field_type_is_structure(packet_context)) { | |
879 | int i, count; | |
880 | ||
881 | count = bt_ctf_field_type_structure_get_field_count( | |
fdf0e7a0 PP |
882 | packet_context); |
883 | assert(count >= 0); | |
884 | ||
5f870343 JG |
885 | for (i = 0; i < count; i++) { |
886 | int ret; | |
887 | const char *name; | |
888 | struct bt_ctf_field_type *field_type; | |
889 | ||
890 | if (timestamp_end != -1 && packet_size != -1 && | |
891 | content_size != -1) { | |
892 | break; | |
893 | } | |
894 | ||
895 | ret = bt_ctf_field_type_structure_get_field( | |
896 | packet_context, &name, &field_type, i); | |
897 | if (ret) { | |
fdf0e7a0 PP |
898 | BT_LOGE("Cannot get packet context structure field type's field: " |
899 | "notit-addr=%p, stream-class-addr=%p, " | |
900 | "stream-class-name=\"%s\", " | |
901 | "stream-class-id=%" PRId64 ", " | |
902 | "ft-addr=%p, index=%d", | |
903 | notit, stream_class, | |
904 | bt_ctf_stream_class_get_name(stream_class), | |
905 | bt_ctf_stream_class_get_id(stream_class), | |
906 | event_header, i); | |
5f870343 JG |
907 | goto error; |
908 | } | |
909 | ||
910 | if (timestamp_end == -1 && | |
fdf0e7a0 | 911 | strcmp(name, "timestamp_end") == 0) { |
5f870343 JG |
912 | struct field_cb_override *override = g_new0( |
913 | struct field_cb_override, 1); | |
914 | ||
915 | if (!override) { | |
916 | BT_PUT(field_type); | |
917 | goto error; | |
918 | } | |
919 | ||
920 | override->func = btr_timestamp_end_cb; | |
921 | override->data = notit; | |
5f870343 | 922 | g_hash_table_insert(notit->field_overrides, |
fdf0e7a0 | 923 | bt_get(field_type), override); |
5f870343 JG |
924 | timestamp_end = i; |
925 | } else if (packet_size == -1 && | |
926 | !strcmp(name, "packet_size")) { | |
927 | packet_size = i; | |
928 | } else if (content_size == -1 && | |
929 | !strcmp(name, "content_size")) { | |
930 | content_size = i; | |
931 | } | |
932 | BT_PUT(field_type); | |
933 | } | |
934 | } | |
935 | ||
936 | cache_entry->v = v; | |
937 | cache_entry->id = id; | |
938 | cache_entry->timestamp_end = timestamp_end; | |
939 | cache_entry->packet_size = packet_size; | |
940 | cache_entry->content_size = content_size; | |
941 | end: | |
942 | BT_PUT(event_header); | |
943 | BT_PUT(packet_context); | |
944 | return cache_entry; | |
945 | error: | |
946 | g_free(cache_entry); | |
947 | cache_entry = NULL; | |
948 | goto end; | |
949 | } | |
950 | ||
951 | static | |
952 | struct stream_class_field_path_cache *get_stream_class_field_path_cache( | |
953 | struct bt_ctf_notif_iter *notit, | |
954 | struct bt_ctf_stream_class *stream_class) | |
955 | { | |
956 | bool cache_entry_found; | |
957 | struct stream_class_field_path_cache *cache_entry; | |
958 | ||
959 | cache_entry_found = g_hash_table_lookup_extended( | |
960 | notit->sc_field_path_caches, | |
961 | stream_class, NULL, (gpointer) &cache_entry); | |
962 | if (unlikely(!cache_entry_found)) { | |
963 | cache_entry = create_stream_class_field_path_cache_entry(notit, | |
fdf0e7a0 | 964 | stream_class); |
5f870343 | 965 | g_hash_table_insert(notit->sc_field_path_caches, |
fdf0e7a0 | 966 | bt_get(stream_class), (gpointer) cache_entry); |
5f870343 JG |
967 | } |
968 | ||
969 | return cache_entry; | |
970 | } | |
971 | ||
e98a2d6e | 972 | static inline |
835b2d10 JG |
973 | enum bt_ctf_notif_iter_status set_current_stream_class( |
974 | struct bt_ctf_notif_iter *notit) | |
e98a2d6e PP |
975 | { |
976 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
5f870343 | 977 | struct bt_ctf_field_type *packet_header_type = NULL; |
e98a2d6e | 978 | struct bt_ctf_field_type *stream_id_field_type = NULL; |
c937c615 | 979 | struct bt_ctf_stream_class *new_stream_class = NULL; |
e98a2d6e PP |
980 | uint64_t stream_id; |
981 | ||
5f870343 JG |
982 | /* Clear the current stream class field path cache. */ |
983 | notit->cur_sc_field_path_cache = NULL; | |
984 | ||
e98a2d6e PP |
985 | /* Is there any "stream_id" field in the packet header? */ |
986 | packet_header_type = bt_ctf_trace_get_packet_header_type( | |
fdf0e7a0 | 987 | notit->meta.trace); |
e98a2d6e | 988 | if (!packet_header_type) { |
fdf0e7a0 PP |
989 | /* |
990 | * No packet header, therefore no `stream_id` field, | |
991 | * therefore only one stream class. | |
992 | */ | |
993 | goto single_stream_class; | |
e98a2d6e PP |
994 | } |
995 | ||
996 | assert(is_struct_type(packet_header_type)); | |
997 | ||
998 | // TODO: optimalize! | |
999 | stream_id_field_type = | |
fdf0e7a0 PP |
1000 | bt_ctf_field_type_structure_get_field_type_by_name( |
1001 | packet_header_type, "stream_id"); | |
e98a2d6e PP |
1002 | if (stream_id_field_type) { |
1003 | /* Find appropriate stream class using current stream ID */ | |
e98a2d6e | 1004 | int ret; |
5f870343 | 1005 | struct bt_ctf_field *stream_id_field = NULL; |
e98a2d6e PP |
1006 | |
1007 | assert(notit->dscopes.trace_packet_header); | |
1008 | ||
1009 | // TODO: optimalize! | |
1010 | stream_id_field = bt_ctf_field_structure_get_field( | |
78586d8a | 1011 | notit->dscopes.trace_packet_header, "stream_id"); |
e98a2d6e PP |
1012 | assert(stream_id_field); |
1013 | ret = bt_ctf_field_unsigned_integer_get_value( | |
78586d8a | 1014 | stream_id_field, &stream_id); |
e98a2d6e PP |
1015 | assert(!ret); |
1016 | BT_PUT(stream_id_field); | |
1017 | } else { | |
fdf0e7a0 | 1018 | single_stream_class: |
e98a2d6e PP |
1019 | /* Only one stream: pick the first stream class */ |
1020 | assert(bt_ctf_trace_get_stream_class_count( | |
78586d8a | 1021 | notit->meta.trace) == 1); |
e98a2d6e PP |
1022 | stream_id = 0; |
1023 | } | |
1024 | ||
fdf0e7a0 PP |
1025 | BT_LOGV("Found stream class ID to use: notit-addr=%p, " |
1026 | "stream-class-id=%" PRIu64 ", " | |
1027 | "trace-addr=%p, trace-name=\"%s\"", | |
1028 | notit, stream_id, notit->meta.trace, | |
1029 | bt_ctf_trace_get_name(notit->meta.trace)); | |
1030 | ||
c937c615 | 1031 | new_stream_class = bt_ctf_trace_get_stream_class_by_id( |
fdf0e7a0 | 1032 | notit->meta.trace, stream_id); |
c937c615 | 1033 | if (!new_stream_class) { |
fdf0e7a0 PP |
1034 | BT_LOGW("No stream class with ID of stream class ID to use in trace: " |
1035 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " | |
1036 | "trace-addr=%p, trace-name=\"%s\"", | |
1037 | notit, stream_id, notit->meta.trace, | |
1038 | bt_ctf_trace_get_name(notit->meta.trace)); | |
e98a2d6e PP |
1039 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1040 | goto end; | |
1041 | } | |
1042 | ||
c937c615 PP |
1043 | if (notit->meta.stream_class) { |
1044 | if (new_stream_class != notit->meta.stream_class) { | |
1045 | BT_LOGW("Two packets refer to two different stream classes within the same packet sequence: " | |
1046 | "notit-addr=%p, prev-stream-class-addr=%p, " | |
1047 | "prev-stream-class-name=\"%s\", " | |
1048 | "prev-stream-class-id=%" PRId64 ", " | |
1049 | "next-stream-class-addr=%p, " | |
1050 | "next-stream-class-name=\"%s\", " | |
1051 | "next-stream-class-id=%" PRId64 ", " | |
1052 | "trace-addr=%p, trace-name=\"%s\"", | |
1053 | notit, notit->meta.stream_class, | |
1054 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1055 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1056 | new_stream_class, | |
1057 | bt_ctf_stream_class_get_name(new_stream_class), | |
1058 | bt_ctf_stream_class_get_id(new_stream_class), | |
1059 | notit->meta.trace, | |
1060 | bt_ctf_trace_get_name(notit->meta.trace)); | |
1061 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
1062 | goto end; | |
1063 | } | |
1064 | } else { | |
1065 | BT_MOVE(notit->meta.stream_class, new_stream_class); | |
1066 | } | |
1067 | ||
fdf0e7a0 PP |
1068 | BT_LOGV("Set current stream class: " |
1069 | "notit-addr=%p, stream-class-addr=%p, " | |
1070 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1071 | notit, notit->meta.stream_class, | |
1072 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1073 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
1074 | ||
5f870343 JG |
1075 | /* |
1076 | * Retrieve (or lazily create) the current stream class field path | |
1077 | * cache. | |
1078 | */ | |
1079 | notit->cur_sc_field_path_cache = get_stream_class_field_path_cache( | |
fdf0e7a0 | 1080 | notit, notit->meta.stream_class); |
5f870343 | 1081 | if (!notit->cur_sc_field_path_cache) { |
fdf0e7a0 PP |
1082 | BT_LOGW("Cannot retrieve stream class field path from cache: " |
1083 | "notit-addr=%p, stream-class-addr=%p, " | |
1084 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1085 | notit, notit->meta.stream_class, | |
1086 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1087 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
5f870343 JG |
1088 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1089 | goto end; | |
1090 | } | |
e98a2d6e PP |
1091 | end: |
1092 | BT_PUT(packet_header_type); | |
1093 | BT_PUT(stream_id_field_type); | |
c937c615 | 1094 | bt_put(new_stream_class); |
e98a2d6e PP |
1095 | return status; |
1096 | } | |
1097 | ||
1098 | static | |
1099 | enum bt_ctf_notif_iter_status after_packet_header_state( | |
1100 | struct bt_ctf_notif_iter *notit) | |
1101 | { | |
1102 | enum bt_ctf_notif_iter_status status; | |
1103 | ||
1104 | status = set_current_stream_class(notit); | |
1105 | if (status == BT_CTF_NOTIF_ITER_STATUS_OK) { | |
1106 | notit->state = STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN; | |
1107 | } | |
1108 | ||
1109 | return status; | |
1110 | } | |
1111 | ||
1112 | static | |
1113 | enum bt_ctf_notif_iter_status read_packet_context_begin_state( | |
1114 | struct bt_ctf_notif_iter *notit) | |
1115 | { | |
1116 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1117 | struct bt_ctf_field_type *packet_context_type; | |
1118 | ||
1119 | assert(notit->meta.stream_class); | |
1120 | packet_context_type = bt_ctf_stream_class_get_packet_context_type( | |
fdf0e7a0 | 1121 | notit->meta.stream_class); |
e98a2d6e | 1122 | if (!packet_context_type) { |
fdf0e7a0 PP |
1123 | BT_LOGV("No packet packet context field type in stream class: continuing: " |
1124 | "notit-addr=%p, stream-class-addr=%p, " | |
1125 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1126 | notit, notit->meta.stream_class, | |
1127 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1128 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
835b2d10 | 1129 | notit->state = STATE_AFTER_STREAM_PACKET_CONTEXT; |
e98a2d6e PP |
1130 | goto end; |
1131 | } | |
1132 | ||
fdf0e7a0 PP |
1133 | BT_LOGV("Decoding packet context field: " |
1134 | "notit-addr=%p, stream-class-addr=%p, " | |
1135 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1136 | "ft-addr=%p", | |
1137 | notit, notit->meta.stream_class, | |
1138 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1139 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1140 | packet_context_type); | |
e98a2d6e | 1141 | status = read_dscope_begin_state(notit, packet_context_type, |
fdf0e7a0 PP |
1142 | STATE_AFTER_STREAM_PACKET_CONTEXT, |
1143 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
1144 | ¬it->dscopes.stream_packet_context); | |
1145 | if (status < 0) { | |
1146 | BT_LOGW("Cannot decode packet context field: " | |
1147 | "notit-addr=%p, stream-class-addr=%p, " | |
1148 | "stream-class-name=\"%s\", " | |
1149 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1150 | notit, notit->meta.stream_class, | |
1151 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1152 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1153 | packet_context_type); | |
1154 | } | |
e98a2d6e PP |
1155 | |
1156 | end: | |
1157 | BT_PUT(packet_context_type); | |
e98a2d6e PP |
1158 | return status; |
1159 | } | |
1160 | ||
1161 | static | |
1162 | enum bt_ctf_notif_iter_status read_packet_context_continue_state( | |
1163 | struct bt_ctf_notif_iter *notit) | |
1164 | { | |
1165 | return read_dscope_continue_state(notit, | |
78586d8a | 1166 | STATE_AFTER_STREAM_PACKET_CONTEXT); |
e98a2d6e PP |
1167 | } |
1168 | ||
78586d8a | 1169 | static |
e98a2d6e PP |
1170 | enum bt_ctf_notif_iter_status set_current_packet_content_sizes( |
1171 | struct bt_ctf_notif_iter *notit) | |
1172 | { | |
1173 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1174 | struct bt_ctf_field *packet_size_field = NULL; | |
1175 | struct bt_ctf_field *content_size_field = NULL; | |
a27839b0 | 1176 | uint64_t content_size = -1ULL, packet_size = -1ULL; |
e98a2d6e | 1177 | |
89b08333 MD |
1178 | if (!notit->dscopes.stream_packet_context) { |
1179 | goto end; | |
1180 | } | |
e98a2d6e | 1181 | |
e98a2d6e | 1182 | packet_size_field = bt_ctf_field_structure_get_field( |
fdf0e7a0 | 1183 | notit->dscopes.stream_packet_context, "packet_size"); |
e98a2d6e | 1184 | content_size_field = bt_ctf_field_structure_get_field( |
fdf0e7a0 | 1185 | notit->dscopes.stream_packet_context, "content_size"); |
e98a2d6e PP |
1186 | if (packet_size_field) { |
1187 | int ret = bt_ctf_field_unsigned_integer_get_value( | |
fdf0e7a0 | 1188 | packet_size_field, &packet_size); |
e98a2d6e | 1189 | |
fdf0e7a0 | 1190 | assert(ret == 0); |
e98a2d6e | 1191 | if (packet_size == 0) { |
fdf0e7a0 PP |
1192 | BT_LOGW("Invalid packet size: packet context field indicates packet size is zero: " |
1193 | "notit-addr=%p, packet-context-field-addr=%p", | |
1194 | notit, notit->dscopes.stream_packet_context); | |
e98a2d6e PP |
1195 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1196 | goto end; | |
1197 | } else if ((packet_size % 8) != 0) { | |
fdf0e7a0 PP |
1198 | BT_LOGW("Invalid packet size: packet context field indicates packet size is not a multiple of 8: " |
1199 | "notit-addr=%p, packet-context-field-addr=%p, " | |
1200 | "packet-size=%" PRIu64, | |
1201 | notit, notit->dscopes.stream_packet_context, | |
1202 | packet_size); | |
e98a2d6e PP |
1203 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1204 | goto end; | |
1205 | } | |
1206 | } | |
78586d8a | 1207 | |
e98a2d6e PP |
1208 | if (content_size_field) { |
1209 | int ret = bt_ctf_field_unsigned_integer_get_value( | |
1210 | content_size_field, &content_size); | |
78586d8a | 1211 | |
fdf0e7a0 | 1212 | assert(ret == 0); |
e98a2d6e PP |
1213 | } else { |
1214 | content_size = packet_size; | |
1215 | } | |
1216 | ||
fdf0e7a0 PP |
1217 | if (content_size > packet_size) { |
1218 | BT_LOGW("Invalid packet or content size: packet context field indicates content size is greater than packet size: " | |
1219 | "notit-addr=%p, packet-context-field-addr=%p, " | |
1220 | "packet-size=%" PRIu64 ", content-size=%" PRIu64, | |
1221 | notit, notit->dscopes.stream_packet_context, | |
1222 | packet_size, content_size); | |
1223 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
1224 | goto end; | |
1225 | } | |
1226 | ||
a27839b0 MD |
1227 | if (packet_size != -1ULL) { |
1228 | notit->cur_packet_size = packet_size; | |
1229 | } else { | |
1230 | /* | |
1231 | * Use the content size as packet size indicator if the | |
1232 | * packet size field is missing. This means there is no | |
1233 | * padding in this stream. | |
1234 | */ | |
1235 | notit->cur_packet_size = content_size; | |
1236 | } | |
e98a2d6e | 1237 | notit->cur_content_size = content_size; |
fdf0e7a0 PP |
1238 | BT_LOGV("Set current packet and content sizes: " |
1239 | "notit-addr=%p, packet-size=%" PRIu64 ", content-size=%" PRIu64, | |
1240 | notit, packet_size, content_size); | |
e98a2d6e PP |
1241 | end: |
1242 | BT_PUT(packet_size_field); | |
1243 | BT_PUT(content_size_field); | |
e98a2d6e PP |
1244 | return status; |
1245 | } | |
1246 | ||
1247 | static | |
1248 | enum bt_ctf_notif_iter_status after_packet_context_state( | |
1249 | struct bt_ctf_notif_iter *notit) | |
1250 | { | |
1251 | enum bt_ctf_notif_iter_status status; | |
1252 | ||
1253 | status = set_current_packet_content_sizes(notit); | |
1254 | if (status == BT_CTF_NOTIF_ITER_STATUS_OK) { | |
1255 | notit->state = STATE_EMIT_NOTIF_NEW_PACKET; | |
1256 | } | |
1257 | ||
1258 | return status; | |
1259 | } | |
1260 | ||
1261 | static | |
1262 | enum bt_ctf_notif_iter_status read_event_header_begin_state( | |
1263 | struct bt_ctf_notif_iter *notit) | |
1264 | { | |
1265 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1266 | struct bt_ctf_field_type *event_header_type = NULL; | |
1267 | ||
9b876b7b PP |
1268 | /* Reset the position of the last event header */ |
1269 | notit->buf.last_eh_at = notit->buf.at; | |
1270 | ||
e98a2d6e PP |
1271 | /* Check if we have some content left */ |
1272 | if (notit->cur_content_size >= 0) { | |
1273 | if (packet_at(notit) == notit->cur_content_size) { | |
1274 | /* No more events! */ | |
fdf0e7a0 PP |
1275 | BT_LOGV("Reached end of packet: notit-addr=%p, " |
1276 | "cur=%zu", notit, packet_at(notit)); | |
e98a2d6e PP |
1277 | notit->state = STATE_EMIT_NOTIF_END_OF_PACKET; |
1278 | goto end; | |
1279 | } else if (packet_at(notit) > notit->cur_content_size) { | |
1280 | /* That's not supposed to happen */ | |
fdf0e7a0 | 1281 | BT_LOGV("Before decoding event header field: cursor is passed the packet's content: " |
41342c71 | 1282 | "notit-addr=%p, content-size=%" PRId64 ", " |
fdf0e7a0 PP |
1283 | "cur=%zu", notit, notit->cur_content_size, |
1284 | packet_at(notit)); | |
e98a2d6e PP |
1285 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1286 | goto end; | |
1287 | } | |
1288 | } | |
1289 | ||
1290 | event_header_type = bt_ctf_stream_class_get_event_header_type( | |
1291 | notit->meta.stream_class); | |
1292 | if (!event_header_type) { | |
835b2d10 | 1293 | notit->state = STATE_AFTER_STREAM_EVENT_HEADER; |
e98a2d6e PP |
1294 | goto end; |
1295 | } | |
1296 | ||
1297 | put_event_dscopes(notit); | |
fdf0e7a0 PP |
1298 | BT_LOGV("Decoding event header field: " |
1299 | "notit-addr=%p, stream-class-addr=%p, " | |
1300 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1301 | "ft-addr=%p", | |
1302 | notit, notit->meta.stream_class, | |
1303 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1304 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1305 | event_header_type); | |
e98a2d6e PP |
1306 | status = read_dscope_begin_state(notit, event_header_type, |
1307 | STATE_AFTER_STREAM_EVENT_HEADER, | |
1308 | STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE, | |
1309 | ¬it->dscopes.stream_event_header); | |
fdf0e7a0 PP |
1310 | if (status < 0) { |
1311 | BT_LOGW("Cannot decode event header field: " | |
1312 | "notit-addr=%p, stream-class-addr=%p, " | |
1313 | "stream-class-name=\"%s\", " | |
1314 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1315 | notit, notit->meta.stream_class, | |
1316 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1317 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1318 | event_header_type); | |
1319 | } | |
e98a2d6e PP |
1320 | end: |
1321 | BT_PUT(event_header_type); | |
1322 | ||
1323 | return status; | |
1324 | } | |
1325 | ||
1326 | static | |
1327 | enum bt_ctf_notif_iter_status read_event_header_continue_state( | |
1328 | struct bt_ctf_notif_iter *notit) | |
1329 | { | |
1330 | return read_dscope_continue_state(notit, | |
1331 | STATE_AFTER_STREAM_EVENT_HEADER); | |
1332 | } | |
1333 | ||
1334 | static inline | |
1335 | enum bt_ctf_notif_iter_status set_current_event_class(struct bt_ctf_notif_iter *notit) | |
1336 | { | |
1337 | /* | |
1338 | * The assert() calls in this function are okay because it is | |
1339 | * assumed here that all the metadata objects have been | |
1340 | * validated for CTF correctness before decoding actual streams. | |
1341 | */ | |
1342 | ||
1343 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1344 | struct bt_ctf_field_type *event_header_type; | |
1345 | struct bt_ctf_field_type *id_field_type = NULL; | |
1346 | struct bt_ctf_field_type *v_field_type = NULL; | |
1347 | uint64_t event_id = -1ULL; | |
1348 | int ret; | |
1349 | ||
1350 | event_header_type = bt_ctf_stream_class_get_event_header_type( | |
1351 | notit->meta.stream_class); | |
1352 | if (!event_header_type) { | |
fdf0e7a0 PP |
1353 | /* |
1354 | * No event header, therefore no event class ID field, | |
1355 | * therefore only one event class. | |
1356 | */ | |
1357 | goto single_event_class; | |
e98a2d6e PP |
1358 | } |
1359 | ||
1360 | /* Is there any "id"/"v" field in the event header? */ | |
1361 | assert(is_struct_type(event_header_type)); | |
1362 | id_field_type = bt_ctf_field_type_structure_get_field_type_by_name( | |
1363 | event_header_type, "id"); | |
1364 | v_field_type = bt_ctf_field_type_structure_get_field_type_by_name( | |
1365 | event_header_type, "v"); | |
1366 | assert(notit->dscopes.stream_event_header); | |
1367 | if (v_field_type) { | |
1368 | /* | |
1369 | * _ _____ _____ | |
1370 | * | | |_ _|_ _| __ __ _ | |
1371 | * | | | | | || '_ \ / _` | | |
1372 | * | |___| | | || | | | (_| | S P E C I A L | |
1373 | * |_____|_| |_||_| |_|\__, | C A S E ™ | |
1374 | * |___/ | |
1375 | */ | |
1376 | struct bt_ctf_field *v_field = NULL; | |
1377 | struct bt_ctf_field *v_struct_field = NULL; | |
1378 | struct bt_ctf_field *v_struct_id_field = NULL; | |
1379 | ||
1380 | // TODO: optimalize! | |
1381 | v_field = bt_ctf_field_structure_get_field( | |
1382 | notit->dscopes.stream_event_header, "v"); | |
1383 | assert(v_field); | |
1384 | ||
1385 | v_struct_field = | |
1386 | bt_ctf_field_variant_get_current_field(v_field); | |
1387 | if (!v_struct_field) { | |
1388 | goto end_v_field_type; | |
1389 | } | |
1390 | ||
1391 | // TODO: optimalize! | |
1392 | v_struct_id_field = | |
1393 | bt_ctf_field_structure_get_field(v_struct_field, "id"); | |
1394 | if (!v_struct_id_field) { | |
1395 | goto end_v_field_type; | |
1396 | } | |
1397 | ||
fdf0e7a0 PP |
1398 | if (bt_ctf_field_is_integer(v_struct_id_field)) { |
1399 | ret = bt_ctf_field_unsigned_integer_get_value( | |
1400 | v_struct_id_field, &event_id); | |
1401 | if (ret) { | |
1402 | BT_LOGV("Cannot get value of unsigned integer field (`id`): continuing: " | |
1403 | "notit=%p, field-addr=%p", | |
1404 | notit, v_struct_id_field); | |
1405 | event_id = -1ULL; | |
1406 | } | |
e98a2d6e PP |
1407 | } |
1408 | ||
1409 | end_v_field_type: | |
1410 | BT_PUT(v_field); | |
1411 | BT_PUT(v_struct_field); | |
1412 | BT_PUT(v_struct_id_field); | |
1413 | } | |
1414 | ||
1415 | if (id_field_type && event_id == -1ULL) { | |
1416 | /* Check "id" field */ | |
1417 | struct bt_ctf_field *id_field = NULL; | |
fdf0e7a0 | 1418 | int ret = 0; |
e98a2d6e PP |
1419 | |
1420 | // TODO: optimalize! | |
1421 | id_field = bt_ctf_field_structure_get_field( | |
1422 | notit->dscopes.stream_event_header, "id"); | |
fdf0e7a0 PP |
1423 | if (!id_field) { |
1424 | goto check_event_id; | |
1425 | } | |
e98a2d6e PP |
1426 | |
1427 | if (bt_ctf_field_is_integer(id_field)) { | |
1428 | ret = bt_ctf_field_unsigned_integer_get_value( | |
1429 | id_field, &event_id); | |
fdf0e7a0 | 1430 | } else if (bt_ctf_field_is_enumeration(id_field)) { |
e98a2d6e PP |
1431 | struct bt_ctf_field *container; |
1432 | ||
1433 | container = bt_ctf_field_enumeration_get_container( | |
1434 | id_field); | |
1435 | assert(container); | |
1436 | ret = bt_ctf_field_unsigned_integer_get_value( | |
1437 | container, &event_id); | |
1438 | BT_PUT(container); | |
1439 | } | |
fdf0e7a0 PP |
1440 | |
1441 | assert(ret == 0); | |
e98a2d6e PP |
1442 | BT_PUT(id_field); |
1443 | } | |
1444 | ||
fdf0e7a0 | 1445 | check_event_id: |
e98a2d6e | 1446 | if (event_id == -1ULL) { |
fdf0e7a0 | 1447 | single_event_class: |
e98a2d6e PP |
1448 | /* Event ID not found: single event? */ |
1449 | assert(bt_ctf_stream_class_get_event_class_count( | |
1450 | notit->meta.stream_class) == 1); | |
1451 | event_id = 0; | |
1452 | } | |
1453 | ||
fdf0e7a0 PP |
1454 | BT_LOGV("Found event class ID to use: notit-addr=%p, " |
1455 | "stream-class-addr=%p, stream-class-name=\"%s\", " | |
1456 | "stream-class-id=%" PRId64 ", " | |
1457 | "event-class-id=%" PRIu64, | |
1458 | notit, notit->meta.stream_class, | |
1459 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1460 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1461 | event_id); | |
e98a2d6e PP |
1462 | BT_PUT(notit->meta.event_class); |
1463 | notit->meta.event_class = bt_ctf_stream_class_get_event_class_by_id( | |
1464 | notit->meta.stream_class, event_id); | |
1465 | if (!notit->meta.event_class) { | |
fdf0e7a0 PP |
1466 | BT_LOGW("No event class with ID of event class ID to use in stream class: " |
1467 | "notit-addr=%p, stream-class-addr=%p, " | |
1468 | "stream-class-name=\"%s\", " | |
1469 | "stream-class-id=%" PRId64 ", " | |
1470 | "event-class-id=%" PRIu64, | |
1471 | notit, notit->meta.stream_class, | |
1472 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1473 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1474 | event_id); | |
e98a2d6e PP |
1475 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1476 | goto end; | |
1477 | } | |
1478 | ||
fdf0e7a0 PP |
1479 | BT_LOGV("Set current event class: " |
1480 | "notit-addr=%p, event-class-addr=%p, " | |
1481 | "event-class-name=\"%s\", event-class-id=%" PRId64, | |
1482 | notit, notit->meta.event_class, | |
1483 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1484 | bt_ctf_event_class_get_id(notit->meta.event_class)); | |
1485 | ||
e98a2d6e PP |
1486 | end: |
1487 | BT_PUT(event_header_type); | |
1488 | BT_PUT(id_field_type); | |
1489 | BT_PUT(v_field_type); | |
1490 | ||
1491 | return status; | |
1492 | } | |
1493 | ||
1494 | static | |
1495 | enum bt_ctf_notif_iter_status after_event_header_state( | |
1496 | struct bt_ctf_notif_iter *notit) | |
1497 | { | |
1498 | enum bt_ctf_notif_iter_status status; | |
1499 | ||
e98a2d6e PP |
1500 | status = set_current_event_class(notit); |
1501 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
e98a2d6e PP |
1502 | goto end; |
1503 | } | |
1504 | ||
1505 | notit->state = STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN; | |
1506 | ||
1507 | end: | |
1508 | return status; | |
1509 | } | |
1510 | ||
1511 | static | |
1512 | enum bt_ctf_notif_iter_status read_stream_event_context_begin_state( | |
1513 | struct bt_ctf_notif_iter *notit) | |
1514 | { | |
1515 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1516 | struct bt_ctf_field_type *stream_event_context_type; | |
1517 | ||
1518 | stream_event_context_type = bt_ctf_stream_class_get_event_context_type( | |
1519 | notit->meta.stream_class); | |
1520 | if (!stream_event_context_type) { | |
835b2d10 | 1521 | notit->state = STATE_DSCOPE_EVENT_CONTEXT_BEGIN; |
e98a2d6e PP |
1522 | goto end; |
1523 | } | |
1524 | ||
fdf0e7a0 PP |
1525 | BT_LOGV("Decoding stream event context field: " |
1526 | "notit-addr=%p, stream-class-addr=%p, " | |
1527 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1528 | "ft-addr=%p", | |
1529 | notit, notit->meta.stream_class, | |
1530 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1531 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1532 | stream_event_context_type); | |
e98a2d6e PP |
1533 | status = read_dscope_begin_state(notit, stream_event_context_type, |
1534 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN, | |
1535 | STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE, | |
1536 | ¬it->dscopes.stream_event_context); | |
fdf0e7a0 PP |
1537 | if (status < 0) { |
1538 | BT_LOGW("Cannot decode stream event context field: " | |
1539 | "notit-addr=%p, stream-class-addr=%p, " | |
1540 | "stream-class-name=\"%s\", " | |
1541 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1542 | notit, notit->meta.stream_class, | |
1543 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1544 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1545 | stream_event_context_type); | |
1546 | } | |
e98a2d6e PP |
1547 | |
1548 | end: | |
1549 | BT_PUT(stream_event_context_type); | |
1550 | ||
1551 | return status; | |
1552 | } | |
1553 | ||
1554 | static | |
1555 | enum bt_ctf_notif_iter_status read_stream_event_context_continue_state( | |
1556 | struct bt_ctf_notif_iter *notit) | |
1557 | { | |
1558 | return read_dscope_continue_state(notit, | |
1559 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN); | |
1560 | } | |
1561 | ||
1562 | static | |
1563 | enum bt_ctf_notif_iter_status read_event_context_begin_state( | |
1564 | struct bt_ctf_notif_iter *notit) | |
1565 | { | |
1566 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1567 | struct bt_ctf_field_type *event_context_type; | |
1568 | ||
1569 | event_context_type = bt_ctf_event_class_get_context_type( | |
1570 | notit->meta.event_class); | |
1571 | if (!event_context_type) { | |
835b2d10 | 1572 | notit->state = STATE_DSCOPE_EVENT_PAYLOAD_BEGIN; |
e98a2d6e PP |
1573 | goto end; |
1574 | } | |
fdf0e7a0 PP |
1575 | |
1576 | BT_LOGV("Decoding event context field: " | |
1577 | "notit-addr=%p, event-class-addr=%p, " | |
1578 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
1579 | "ft-addr=%p", | |
1580 | notit, notit->meta.event_class, | |
1581 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1582 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
1583 | event_context_type); | |
e98a2d6e PP |
1584 | status = read_dscope_begin_state(notit, event_context_type, |
1585 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, | |
1586 | STATE_DSCOPE_EVENT_CONTEXT_CONTINUE, | |
1587 | ¬it->dscopes.event_context); | |
fdf0e7a0 PP |
1588 | if (status < 0) { |
1589 | BT_LOGW("Cannot decode event context field: " | |
1590 | "notit-addr=%p, event-class-addr=%p, " | |
1591 | "event-class-name=\"%s\", " | |
1592 | "event-class-id=%" PRId64 ", ft-addr=%p", | |
1593 | notit, notit->meta.event_class, | |
1594 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1595 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
1596 | event_context_type); | |
1597 | } | |
e98a2d6e PP |
1598 | |
1599 | end: | |
1600 | BT_PUT(event_context_type); | |
1601 | ||
1602 | return status; | |
1603 | } | |
1604 | ||
1605 | static | |
1606 | enum bt_ctf_notif_iter_status read_event_context_continue_state( | |
1607 | struct bt_ctf_notif_iter *notit) | |
1608 | { | |
1609 | return read_dscope_continue_state(notit, | |
1610 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN); | |
1611 | } | |
1612 | ||
1613 | static | |
1614 | enum bt_ctf_notif_iter_status read_event_payload_begin_state( | |
1615 | struct bt_ctf_notif_iter *notit) | |
1616 | { | |
1617 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1618 | struct bt_ctf_field_type *event_payload_type; | |
1619 | ||
1620 | event_payload_type = bt_ctf_event_class_get_payload_type( | |
1621 | notit->meta.event_class); | |
1622 | if (!event_payload_type) { | |
835b2d10 | 1623 | notit->state = STATE_EMIT_NOTIF_EVENT; |
e98a2d6e PP |
1624 | goto end; |
1625 | } | |
1626 | ||
fdf0e7a0 PP |
1627 | BT_LOGV("Decoding event payload field: " |
1628 | "notit-addr=%p, event-class-addr=%p, " | |
1629 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
1630 | "ft-addr=%p", | |
1631 | notit, notit->meta.event_class, | |
1632 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1633 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
1634 | event_payload_type); | |
e98a2d6e PP |
1635 | status = read_dscope_begin_state(notit, event_payload_type, |
1636 | STATE_EMIT_NOTIF_EVENT, | |
1637 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
1638 | ¬it->dscopes.event_payload); | |
fdf0e7a0 PP |
1639 | if (status < 0) { |
1640 | BT_LOGW("Cannot decode event payload field: " | |
1641 | "notit-addr=%p, event-class-addr=%p, " | |
1642 | "event-class-name=\"%s\", " | |
1643 | "event-class-id=%" PRId64 ", ft-addr=%p", | |
1644 | notit, notit->meta.event_class, | |
1645 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1646 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
1647 | event_payload_type); | |
1648 | } | |
e98a2d6e PP |
1649 | |
1650 | end: | |
1651 | BT_PUT(event_payload_type); | |
1652 | ||
1653 | return status; | |
1654 | } | |
1655 | ||
1656 | static | |
1657 | enum bt_ctf_notif_iter_status read_event_payload_continue_state( | |
1658 | struct bt_ctf_notif_iter *notit) | |
1659 | { | |
1660 | return read_dscope_continue_state(notit, STATE_EMIT_NOTIF_EVENT); | |
1661 | } | |
1662 | ||
1663 | static | |
1664 | enum bt_ctf_notif_iter_status skip_packet_padding_state( | |
1665 | struct bt_ctf_notif_iter *notit) | |
1666 | { | |
1667 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1668 | size_t bits_to_skip; | |
1669 | ||
1670 | assert(notit->cur_packet_size > 0); | |
1671 | bits_to_skip = notit->cur_packet_size - packet_at(notit); | |
1672 | if (bits_to_skip == 0) { | |
1673 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1674 | goto end; | |
1675 | } else { | |
1676 | size_t bits_to_consume; | |
fdf0e7a0 PP |
1677 | |
1678 | BT_LOGV("Trying to skip %zu bits of padding: notit-addr=%p, size=%zu", | |
1679 | bits_to_skip, notit, bits_to_skip); | |
e98a2d6e PP |
1680 | status = buf_ensure_available_bits(notit); |
1681 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
1682 | goto end; | |
1683 | } | |
1684 | ||
1685 | bits_to_consume = MIN(buf_available_bits(notit), bits_to_skip); | |
fdf0e7a0 PP |
1686 | BT_LOGV("Skipping %zu bits of padding: notit-addr=%p, size=%zu", |
1687 | bits_to_consume, notit, bits_to_consume); | |
e98a2d6e PP |
1688 | buf_consume_bits(notit, bits_to_consume); |
1689 | bits_to_skip = notit->cur_packet_size - packet_at(notit); | |
1690 | if (bits_to_skip == 0) { | |
1691 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1692 | goto end; | |
1693 | } | |
1694 | } | |
1695 | ||
1696 | end: | |
1697 | return status; | |
1698 | } | |
1699 | ||
1700 | static inline | |
1701 | enum bt_ctf_notif_iter_status handle_state(struct bt_ctf_notif_iter *notit) | |
1702 | { | |
1703 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
fdf0e7a0 | 1704 | const enum state state = notit->state; |
e98a2d6e | 1705 | |
fdf0e7a0 PP |
1706 | BT_LOGV("Handling state: notit-addr=%p, state=%s", |
1707 | notit, state_string(state)); | |
e98a2d6e PP |
1708 | |
1709 | // TODO: optimalize! | |
fdf0e7a0 | 1710 | switch (state) { |
e98a2d6e PP |
1711 | case STATE_INIT: |
1712 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1713 | break; | |
1714 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
1715 | status = read_packet_header_begin_state(notit); | |
1716 | break; | |
1717 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
1718 | status = read_packet_header_continue_state(notit); | |
1719 | break; | |
1720 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
1721 | status = after_packet_header_state(notit); | |
1722 | break; | |
1723 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
1724 | status = read_packet_context_begin_state(notit); | |
1725 | break; | |
1726 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
1727 | status = read_packet_context_continue_state(notit); | |
1728 | break; | |
1729 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
1730 | status = after_packet_context_state(notit); | |
1731 | break; | |
1732 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
1733 | notit->state = STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN; | |
1734 | break; | |
1735 | case STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN: | |
1736 | status = read_event_header_begin_state(notit); | |
1737 | break; | |
1738 | case STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE: | |
1739 | status = read_event_header_continue_state(notit); | |
1740 | break; | |
1741 | case STATE_AFTER_STREAM_EVENT_HEADER: | |
1742 | status = after_event_header_state(notit); | |
1743 | break; | |
1744 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN: | |
1745 | status = read_stream_event_context_begin_state(notit); | |
1746 | break; | |
1747 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE: | |
1748 | status = read_stream_event_context_continue_state(notit); | |
1749 | break; | |
1750 | case STATE_DSCOPE_EVENT_CONTEXT_BEGIN: | |
1751 | status = read_event_context_begin_state(notit); | |
1752 | break; | |
1753 | case STATE_DSCOPE_EVENT_CONTEXT_CONTINUE: | |
1754 | status = read_event_context_continue_state(notit); | |
1755 | break; | |
1756 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
1757 | status = read_event_payload_begin_state(notit); | |
1758 | break; | |
1759 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
1760 | status = read_event_payload_continue_state(notit); | |
1761 | break; | |
1762 | case STATE_EMIT_NOTIF_EVENT: | |
1763 | notit->state = STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN; | |
1764 | break; | |
1765 | case STATE_SKIP_PACKET_PADDING: | |
1766 | status = skip_packet_padding_state(notit); | |
1767 | break; | |
1768 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
1769 | notit->state = STATE_SKIP_PACKET_PADDING; | |
1770 | break; | |
fdf0e7a0 PP |
1771 | default: |
1772 | BT_LOGD("Unknown CTF plugin notification iterator state: " | |
1773 | "notit-addr=%p, state=%d", notit, notit->state); | |
1774 | abort(); | |
e98a2d6e PP |
1775 | } |
1776 | ||
fdf0e7a0 PP |
1777 | BT_LOGV("Handled state: notit-addr=%p, status=%s, " |
1778 | "prev-state=%s, cur-state=%s", | |
1779 | notit, bt_ctf_notif_iter_status_string(status), | |
1780 | state_string(state), state_string(notit->state)); | |
e98a2d6e PP |
1781 | return status; |
1782 | } | |
1783 | ||
2cf1d51e JG |
1784 | /** |
1785 | * Resets the internal state of a CTF notification iterator. | |
2cf1d51e JG |
1786 | */ |
1787 | static | |
e98a2d6e PP |
1788 | void bt_ctf_notif_iter_reset(struct bt_ctf_notif_iter *notit) |
1789 | { | |
1790 | assert(notit); | |
fdf0e7a0 | 1791 | BT_LOGD("Resetting notification iterator: addr=%p", notit); |
e98a2d6e PP |
1792 | stack_clear(notit->stack); |
1793 | BT_PUT(notit->meta.stream_class); | |
1794 | BT_PUT(notit->meta.event_class); | |
1795 | BT_PUT(notit->packet); | |
5184a1d6 | 1796 | BT_PUT(notit->stream); |
e98a2d6e PP |
1797 | put_all_dscopes(notit); |
1798 | notit->buf.addr = NULL; | |
1799 | notit->buf.sz = 0; | |
1800 | notit->buf.at = 0; | |
bb8744a7 | 1801 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
1802 | notit->buf.packet_offset = 0; |
1803 | notit->state = STATE_INIT; | |
1804 | notit->cur_content_size = -1; | |
1805 | notit->cur_packet_size = -1; | |
1806 | } | |
1807 | ||
2cf1d51e JG |
1808 | static |
1809 | int bt_ctf_notif_iter_switch_packet(struct bt_ctf_notif_iter *notit) | |
1810 | { | |
1811 | int ret = 0; | |
1812 | ||
c937c615 PP |
1813 | /* |
1814 | * We don't put the stream class here because we need to make | |
1815 | * sure that all the packets processed by the same notification | |
1816 | * iterator refer to the same stream class (the first one). | |
1817 | */ | |
2cf1d51e | 1818 | assert(notit); |
fdf0e7a0 PP |
1819 | BT_LOGV("Switching packet: notit-addr=%p, cur=%zu", |
1820 | notit, notit->buf.at); | |
2cf1d51e | 1821 | stack_clear(notit->stack); |
2cf1d51e JG |
1822 | BT_PUT(notit->meta.event_class); |
1823 | BT_PUT(notit->packet); | |
5f870343 | 1824 | BT_PUT(notit->cur_timestamp_end); |
2cf1d51e JG |
1825 | put_all_dscopes(notit); |
1826 | ||
1827 | /* | |
1828 | * Adjust current buffer so that addr points to the beginning of the new | |
1829 | * packet. | |
1830 | */ | |
1831 | if (notit->buf.addr) { | |
1832 | size_t consumed_bytes = (size_t) (notit->buf.at / CHAR_BIT); | |
1833 | ||
1834 | /* Packets are assumed to start on a byte frontier. */ | |
1835 | if (notit->buf.at % CHAR_BIT) { | |
fdf0e7a0 PP |
1836 | BT_LOGW("Cannot switch packet: current position is not a multiple of 8: " |
1837 | "notit-addr=%p, cur=%zu", notit, notit->buf.at); | |
2cf1d51e JG |
1838 | ret = -1; |
1839 | goto end; | |
1840 | } | |
1841 | ||
1842 | notit->buf.addr += consumed_bytes; | |
1843 | notit->buf.sz -= consumed_bytes; | |
1844 | notit->buf.at = 0; | |
1845 | notit->buf.packet_offset = 0; | |
fdf0e7a0 PP |
1846 | BT_LOGV("Adjusted buffer: addr=%p, size=%zu", |
1847 | notit->buf.addr, notit->buf.sz); | |
2cf1d51e JG |
1848 | } |
1849 | ||
1850 | notit->cur_content_size = -1; | |
1851 | notit->cur_packet_size = -1; | |
5f870343 | 1852 | notit->cur_sc_field_path_cache = NULL; |
fdf0e7a0 | 1853 | |
2cf1d51e JG |
1854 | end: |
1855 | return ret; | |
1856 | } | |
1857 | ||
e98a2d6e PP |
1858 | static |
1859 | struct bt_ctf_field *get_next_field(struct bt_ctf_notif_iter *notit) | |
1860 | { | |
1861 | struct bt_ctf_field *next_field = NULL; | |
1862 | struct bt_ctf_field *base_field; | |
1863 | struct bt_ctf_field_type *base_type; | |
1864 | size_t index; | |
1865 | ||
1866 | assert(!stack_empty(notit->stack)); | |
1867 | index = stack_top(notit->stack)->index; | |
1868 | base_field = stack_top(notit->stack)->base; | |
fdf0e7a0 | 1869 | assert(base_field); |
e98a2d6e | 1870 | base_type = bt_ctf_field_get_type(base_field); |
fdf0e7a0 | 1871 | assert(base_type); |
e98a2d6e PP |
1872 | |
1873 | switch (bt_ctf_field_type_get_type_id(base_type)) { | |
1487a16a | 1874 | case BT_CTF_FIELD_TYPE_ID_STRUCT: |
e98a2d6e PP |
1875 | next_field = bt_ctf_field_structure_get_field_by_index( |
1876 | base_field, index); | |
1877 | break; | |
1487a16a | 1878 | case BT_CTF_FIELD_TYPE_ID_ARRAY: |
e98a2d6e PP |
1879 | next_field = bt_ctf_field_array_get_field(base_field, index); |
1880 | break; | |
1487a16a | 1881 | case BT_CTF_FIELD_TYPE_ID_SEQUENCE: |
e98a2d6e PP |
1882 | next_field = bt_ctf_field_sequence_get_field(base_field, index); |
1883 | break; | |
1487a16a | 1884 | case BT_CTF_FIELD_TYPE_ID_VARIANT: |
e98a2d6e PP |
1885 | next_field = bt_ctf_field_variant_get_current_field(base_field); |
1886 | break; | |
1887 | default: | |
fdf0e7a0 PP |
1888 | BT_LOGF("Unknown base field type ID: " |
1889 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
1890 | notit, base_type, | |
1891 | bt_ctf_field_type_id_string( | |
1892 | bt_ctf_field_type_get_type_id(base_type))); | |
0fbb9a9f | 1893 | abort(); |
e98a2d6e PP |
1894 | } |
1895 | ||
e98a2d6e | 1896 | BT_PUT(base_type); |
e98a2d6e PP |
1897 | return next_field; |
1898 | } | |
1899 | ||
c44c3e70 JG |
1900 | static |
1901 | void update_clock_state(uint64_t *state, | |
1902 | struct bt_ctf_field *value_field) | |
1903 | { | |
1904 | struct bt_ctf_field_type *value_type = NULL; | |
1905 | uint64_t requested_new_value; | |
1906 | uint64_t requested_new_value_mask; | |
1907 | uint64_t cur_value_masked; | |
1908 | int requested_new_value_size; | |
1909 | int ret; | |
1910 | ||
1911 | value_type = bt_ctf_field_get_type(value_field); | |
1912 | assert(value_type); | |
fdf0e7a0 | 1913 | assert(bt_ctf_field_type_is_integer(value_type)); |
c44c3e70 JG |
1914 | requested_new_value_size = |
1915 | bt_ctf_field_type_integer_get_size(value_type); | |
1916 | assert(requested_new_value_size > 0); | |
c44c3e70 JG |
1917 | ret = bt_ctf_field_unsigned_integer_get_value(value_field, |
1918 | &requested_new_value); | |
1919 | assert(!ret); | |
1920 | ||
1921 | /* | |
1922 | * Special case for a 64-bit new value, which is the limit | |
1923 | * of a clock value as of this version: overwrite the | |
1924 | * current value directly. | |
1925 | */ | |
1926 | if (requested_new_value_size == 64) { | |
1927 | *state = requested_new_value; | |
1928 | goto end; | |
1929 | } | |
1930 | ||
1931 | requested_new_value_mask = (1ULL << requested_new_value_size) - 1; | |
1932 | cur_value_masked = *state & requested_new_value_mask; | |
1933 | ||
1934 | if (requested_new_value < cur_value_masked) { | |
1935 | /* | |
1936 | * It looks like a wrap happened on the number of bits | |
1937 | * of the requested new value. Assume that the clock | |
1938 | * value wrapped only one time. | |
1939 | */ | |
1940 | *state += requested_new_value_mask + 1; | |
1941 | } | |
1942 | ||
1943 | /* Clear the low bits of the current clock value. */ | |
1944 | *state &= ~requested_new_value_mask; | |
1945 | ||
1946 | /* Set the low bits of the current clock value. */ | |
1947 | *state |= requested_new_value; | |
1948 | end: | |
fdf0e7a0 PP |
1949 | BT_LOGV("Updated clock's value from integer field's value: " |
1950 | "value=%" PRIu64, *state); | |
c44c3e70 JG |
1951 | bt_put(value_type); |
1952 | } | |
1953 | ||
1954 | static | |
1955 | enum bt_ctf_btr_status update_clock(struct bt_ctf_notif_iter *notit, | |
c44c3e70 JG |
1956 | struct bt_ctf_field *int_field) |
1957 | { | |
ac0c6bdd | 1958 | gboolean clock_class_found; |
501a8569 | 1959 | uint64_t *clock_state = NULL; |
f45bfe88 | 1960 | struct bt_ctf_field_type *int_field_type = NULL; |
c44c3e70 | 1961 | enum bt_ctf_btr_status ret = BT_CTF_BTR_STATUS_OK; |
f45bfe88 | 1962 | struct bt_ctf_clock_class *clock_class = NULL; |
c44c3e70 | 1963 | |
f45bfe88 | 1964 | int_field_type = bt_ctf_field_get_type(int_field); |
fdf0e7a0 | 1965 | assert(int_field_type); |
f45bfe88 PP |
1966 | clock_class = bt_ctf_field_type_integer_get_mapped_clock_class( |
1967 | int_field_type); | |
ac0c6bdd | 1968 | if (likely(!clock_class)) { |
f45bfe88 | 1969 | goto end; |
c44c3e70 JG |
1970 | } |
1971 | ||
ac0c6bdd | 1972 | clock_class_found = g_hash_table_lookup_extended(notit->clock_states, |
fdf0e7a0 | 1973 | clock_class, NULL, (gpointer) &clock_state); |
501a8569 | 1974 | if (!clock_class_found) { |
c44c3e70 JG |
1975 | clock_state = g_new0(uint64_t, 1); |
1976 | if (!clock_state) { | |
fdf0e7a0 | 1977 | BT_LOGE_STR("Failed to allocate a uint64_t."); |
c44c3e70 JG |
1978 | ret = BT_CTF_BTR_STATUS_ENOMEM; |
1979 | goto end; | |
1980 | } | |
fdf0e7a0 | 1981 | |
ac0c6bdd | 1982 | g_hash_table_insert(notit->clock_states, bt_get(clock_class), |
fdf0e7a0 | 1983 | clock_state); |
c44c3e70 JG |
1984 | } |
1985 | ||
1986 | /* Update the clock's state. */ | |
fdf0e7a0 PP |
1987 | BT_LOGV("Updating notification iterator's clock's value from integer field: " |
1988 | "notit-addr=%p, clock-class-addr=%p, " | |
1989 | "clock-class-name=\"%s\", value=%" PRIu64, | |
1990 | notit, clock_class, | |
1991 | bt_ctf_clock_class_get_name(clock_class), *clock_state); | |
c44c3e70 JG |
1992 | update_clock_state(clock_state, int_field); |
1993 | end: | |
f45bfe88 | 1994 | bt_put(int_field_type); |
ac0c6bdd | 1995 | bt_put(clock_class); |
c44c3e70 JG |
1996 | return ret; |
1997 | } | |
1998 | ||
e98a2d6e | 1999 | static |
5f870343 JG |
2000 | enum bt_ctf_btr_status btr_unsigned_int_common(uint64_t value, |
2001 | struct bt_ctf_field_type *type, void *data, | |
f45bfe88 | 2002 | struct bt_ctf_field **out_int_field) |
e98a2d6e PP |
2003 | { |
2004 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2005 | struct bt_ctf_field *field = NULL; | |
2006 | struct bt_ctf_field *int_field = NULL; | |
2007 | struct bt_ctf_notif_iter *notit = data; | |
2008 | int ret; | |
2009 | ||
fdf0e7a0 PP |
2010 | BT_LOGV("Common unsigned integer function called from BTR: " |
2011 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2012 | "ft-id=%s, value=%" PRIu64, | |
2013 | notit, notit->btr, type, | |
2014 | bt_ctf_field_type_id_string( | |
2015 | bt_ctf_field_type_get_type_id(type)), | |
2016 | value); | |
2017 | ||
5f870343 | 2018 | /* Create next field */ |
e98a2d6e PP |
2019 | field = get_next_field(notit); |
2020 | if (!field) { | |
fdf0e7a0 | 2021 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
e98a2d6e | 2022 | status = BT_CTF_BTR_STATUS_ERROR; |
c44c3e70 | 2023 | goto end_no_put; |
e98a2d6e PP |
2024 | } |
2025 | ||
2026 | switch(bt_ctf_field_type_get_type_id(type)) { | |
1487a16a | 2027 | case BT_CTF_FIELD_TYPE_ID_INTEGER: |
e98a2d6e PP |
2028 | /* Integer field is created field */ |
2029 | BT_MOVE(int_field, field); | |
c44c3e70 | 2030 | bt_get(type); |
e98a2d6e | 2031 | break; |
1487a16a | 2032 | case BT_CTF_FIELD_TYPE_ID_ENUM: |
e98a2d6e | 2033 | int_field = bt_ctf_field_enumeration_get_container(field); |
fdf0e7a0 | 2034 | assert(int_field); |
c44c3e70 | 2035 | type = bt_ctf_field_get_type(int_field); |
fdf0e7a0 | 2036 | assert(type); |
e98a2d6e PP |
2037 | break; |
2038 | default: | |
fdf0e7a0 PP |
2039 | BT_LOGF("Unexpected field type ID: " |
2040 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
2041 | notit, type, | |
2042 | bt_ctf_field_type_id_string( | |
2043 | bt_ctf_field_type_get_type_id(type))); | |
0fbb9a9f | 2044 | abort(); |
e98a2d6e PP |
2045 | } |
2046 | ||
fdf0e7a0 | 2047 | assert(int_field); |
5f870343 | 2048 | ret = bt_ctf_field_unsigned_integer_set_value(int_field, value); |
fdf0e7a0 | 2049 | assert(ret == 0); |
e98a2d6e | 2050 | stack_top(notit->stack)->index++; |
f45bfe88 | 2051 | *out_int_field = int_field; |
e98a2d6e | 2052 | BT_PUT(field); |
c44c3e70 | 2053 | BT_PUT(type); |
fdf0e7a0 | 2054 | |
c44c3e70 | 2055 | end_no_put: |
e98a2d6e PP |
2056 | return status; |
2057 | } | |
2058 | ||
5f870343 JG |
2059 | static |
2060 | enum bt_ctf_btr_status btr_timestamp_end_cb(void *value, | |
2061 | struct bt_ctf_field_type *type, void *data) | |
2062 | { | |
2063 | enum bt_ctf_btr_status status; | |
2064 | struct bt_ctf_field *field = NULL; | |
2065 | struct bt_ctf_notif_iter *notit = data; | |
2066 | ||
fdf0e7a0 PP |
2067 | BT_LOGV("`timestamp_end` unsigned integer function called from BTR: " |
2068 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2069 | "ft-id=%s", | |
2070 | notit, notit->btr, type, | |
2071 | bt_ctf_field_type_id_string( | |
2072 | bt_ctf_field_type_get_type_id(type))); | |
5f870343 JG |
2073 | status = btr_unsigned_int_common(*((uint64_t *) value), type, data, |
2074 | &field); | |
2075 | ||
2076 | /* Set as the current packet's timestamp_end field. */ | |
2077 | BT_MOVE(notit->cur_timestamp_end, field); | |
2078 | return status; | |
2079 | } | |
2080 | ||
e98a2d6e PP |
2081 | static |
2082 | enum bt_ctf_btr_status btr_unsigned_int_cb(uint64_t value, | |
2083 | struct bt_ctf_field_type *type, void *data) | |
5f870343 JG |
2084 | { |
2085 | struct bt_ctf_notif_iter *notit = data; | |
2086 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2087 | struct bt_ctf_field *field = NULL; | |
2088 | struct field_cb_override *override; | |
2089 | ||
fdf0e7a0 PP |
2090 | BT_LOGV("Unsigned integer function called from BTR: " |
2091 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2092 | "ft-id=%s, value=%" PRIu64, | |
2093 | notit, notit->btr, type, | |
2094 | bt_ctf_field_type_id_string( | |
2095 | bt_ctf_field_type_get_type_id(type)), | |
2096 | value); | |
2097 | override = g_hash_table_lookup(notit->field_overrides, type); | |
5f870343 | 2098 | if (unlikely(override)) { |
fdf0e7a0 | 2099 | /* Override function logs errors */ |
5f870343 JG |
2100 | status = override->func(&value, type, override->data); |
2101 | goto end; | |
2102 | } | |
2103 | ||
2104 | status = btr_unsigned_int_common(value, type, data, &field); | |
2105 | if (status != BT_CTF_BTR_STATUS_OK) { | |
fdf0e7a0 | 2106 | /* btr_unsigned_int_common() logs errors */ |
5f870343 JG |
2107 | goto end; |
2108 | } | |
2109 | ||
f45bfe88 | 2110 | status = update_clock(notit, field); |
5f870343 JG |
2111 | BT_PUT(field); |
2112 | end: | |
2113 | return status; | |
2114 | } | |
2115 | ||
2116 | static | |
2117 | enum bt_ctf_btr_status btr_signed_int_cb(int64_t value, | |
2118 | struct bt_ctf_field_type *type, void *data) | |
e98a2d6e PP |
2119 | { |
2120 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2121 | struct bt_ctf_field *field = NULL; | |
2122 | struct bt_ctf_field *int_field = NULL; | |
2123 | struct bt_ctf_notif_iter *notit = data; | |
2124 | int ret; | |
2125 | ||
fdf0e7a0 PP |
2126 | BT_LOGV("Signed integer function called from BTR: " |
2127 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2128 | "ft-id=%s, value=%" PRId64, | |
2129 | notit, notit->btr, type, | |
2130 | bt_ctf_field_type_id_string( | |
2131 | bt_ctf_field_type_get_type_id(type)), | |
2132 | value); | |
2133 | ||
5f870343 | 2134 | /* create next field */ |
e98a2d6e PP |
2135 | field = get_next_field(notit); |
2136 | if (!field) { | |
fdf0e7a0 | 2137 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
e98a2d6e | 2138 | status = BT_CTF_BTR_STATUS_ERROR; |
c44c3e70 | 2139 | goto end_no_put; |
e98a2d6e PP |
2140 | } |
2141 | ||
2142 | switch(bt_ctf_field_type_get_type_id(type)) { | |
1487a16a | 2143 | case BT_CTF_FIELD_TYPE_ID_INTEGER: |
e98a2d6e PP |
2144 | /* Integer field is created field */ |
2145 | BT_MOVE(int_field, field); | |
c44c3e70 | 2146 | bt_get(type); |
e98a2d6e | 2147 | break; |
1487a16a | 2148 | case BT_CTF_FIELD_TYPE_ID_ENUM: |
e98a2d6e | 2149 | int_field = bt_ctf_field_enumeration_get_container(field); |
fdf0e7a0 | 2150 | assert(int_field); |
c44c3e70 | 2151 | type = bt_ctf_field_get_type(int_field); |
fdf0e7a0 | 2152 | assert(type); |
e98a2d6e PP |
2153 | break; |
2154 | default: | |
fdf0e7a0 PP |
2155 | BT_LOGF("Unexpected field type ID: " |
2156 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
2157 | notit, type, | |
2158 | bt_ctf_field_type_id_string( | |
2159 | bt_ctf_field_type_get_type_id(type))); | |
0fbb9a9f | 2160 | abort(); |
e98a2d6e PP |
2161 | } |
2162 | ||
fdf0e7a0 | 2163 | assert(int_field); |
5f870343 | 2164 | ret = bt_ctf_field_signed_integer_set_value(int_field, value); |
e98a2d6e PP |
2165 | assert(!ret); |
2166 | stack_top(notit->stack)->index++; | |
f45bfe88 | 2167 | status = update_clock(notit, int_field); |
e98a2d6e PP |
2168 | BT_PUT(field); |
2169 | BT_PUT(int_field); | |
c44c3e70 | 2170 | BT_PUT(type); |
fdf0e7a0 | 2171 | |
c44c3e70 | 2172 | end_no_put: |
e98a2d6e PP |
2173 | return status; |
2174 | } | |
2175 | ||
2176 | static | |
2177 | enum bt_ctf_btr_status btr_floating_point_cb(double value, | |
2178 | struct bt_ctf_field_type *type, void *data) | |
2179 | { | |
2180 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2181 | struct bt_ctf_field *field = NULL; | |
2182 | struct bt_ctf_notif_iter *notit = data; | |
2183 | int ret; | |
2184 | ||
fdf0e7a0 PP |
2185 | BT_LOGV("Floating point number function called from BTR: " |
2186 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2187 | "ft-id=%s, value=%f", | |
2188 | notit, notit->btr, type, | |
2189 | bt_ctf_field_type_id_string( | |
2190 | bt_ctf_field_type_get_type_id(type)), | |
2191 | value); | |
2192 | ||
e98a2d6e PP |
2193 | /* Create next field */ |
2194 | field = get_next_field(notit); | |
2195 | if (!field) { | |
fdf0e7a0 | 2196 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
e98a2d6e PP |
2197 | status = BT_CTF_BTR_STATUS_ERROR; |
2198 | goto end; | |
2199 | } | |
2200 | ||
2201 | ret = bt_ctf_field_floating_point_set_value(field, value); | |
2202 | assert(!ret); | |
2203 | stack_top(notit->stack)->index++; | |
2204 | ||
2205 | end: | |
2206 | BT_PUT(field); | |
e98a2d6e PP |
2207 | return status; |
2208 | } | |
2209 | ||
2210 | static | |
2211 | enum bt_ctf_btr_status btr_string_begin_cb( | |
2212 | struct bt_ctf_field_type *type, void *data) | |
2213 | { | |
2214 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2215 | struct bt_ctf_field *field = NULL; | |
2216 | struct bt_ctf_notif_iter *notit = data; | |
2217 | int ret; | |
2218 | ||
fdf0e7a0 PP |
2219 | BT_LOGV("String (beginning) function called from BTR: " |
2220 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2221 | "ft-id=%s", | |
2222 | notit, notit->btr, type, | |
2223 | bt_ctf_field_type_id_string( | |
2224 | bt_ctf_field_type_get_type_id(type))); | |
2225 | ||
e98a2d6e PP |
2226 | /* Create next field */ |
2227 | field = get_next_field(notit); | |
2228 | if (!field) { | |
fdf0e7a0 | 2229 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
e98a2d6e PP |
2230 | status = BT_CTF_BTR_STATUS_ERROR; |
2231 | goto end; | |
2232 | } | |
2233 | ||
2234 | /* | |
2235 | * Push on stack. Not a compound type per se, but we know that only | |
2236 | * btr_string_cb() may be called between this call and a subsequent | |
2237 | * call to btr_string_end_cb(). | |
2238 | */ | |
2239 | ret = stack_push(notit->stack, field); | |
2240 | if (ret) { | |
fdf0e7a0 PP |
2241 | BT_LOGE("Cannot push string field on stack: " |
2242 | "notit-addr=%p, field-addr=%p", notit, field); | |
e98a2d6e PP |
2243 | status = BT_CTF_BTR_STATUS_ERROR; |
2244 | goto end; | |
2245 | } | |
2246 | ||
e5df2ae3 JG |
2247 | /* |
2248 | * Initialize string field payload to an empty string since in the | |
2249 | * case of a length 0 string the btr_string_cb won't be called and | |
2250 | * we will end up with an unset string payload. | |
2251 | */ | |
2252 | ret = bt_ctf_field_string_set_value(field, ""); | |
2253 | if (ret) { | |
fdf0e7a0 PP |
2254 | BT_LOGE("Cannot initialize string field's value to an empty string: " |
2255 | "notit-addr=%p, field-addr=%p, ret=%d", | |
2256 | notit, field, ret); | |
e5df2ae3 JG |
2257 | status = BT_CTF_BTR_STATUS_ERROR; |
2258 | goto end; | |
2259 | } | |
2260 | ||
e98a2d6e PP |
2261 | end: |
2262 | BT_PUT(field); | |
2263 | ||
2264 | return status; | |
2265 | } | |
2266 | ||
2267 | static | |
2268 | enum bt_ctf_btr_status btr_string_cb(const char *value, | |
2269 | size_t len, struct bt_ctf_field_type *type, void *data) | |
2270 | { | |
2271 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2272 | struct bt_ctf_field *field = NULL; | |
2273 | struct bt_ctf_notif_iter *notit = data; | |
2274 | int ret; | |
2275 | ||
fdf0e7a0 PP |
2276 | BT_LOGV("String (substring) function called from BTR: " |
2277 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2278 | "ft-id=%s, string-length=%zu", | |
2279 | notit, notit->btr, type, | |
2280 | bt_ctf_field_type_id_string( | |
2281 | bt_ctf_field_type_get_type_id(type)), | |
2282 | len); | |
2283 | ||
e98a2d6e PP |
2284 | /* Get string field */ |
2285 | field = stack_top(notit->stack)->base; | |
2286 | assert(field); | |
2287 | ||
2288 | /* Append current string */ | |
2289 | ret = bt_ctf_field_string_append_len(field, value, len); | |
2290 | if (ret) { | |
fdf0e7a0 PP |
2291 | BT_LOGE("Cannot append substring to string field's value: " |
2292 | "notit-addr=%p, field-addr=%p, string-length=%zu, " | |
2293 | "ret=%d", notit, field, len, ret); | |
e98a2d6e PP |
2294 | status = BT_CTF_BTR_STATUS_ERROR; |
2295 | goto end; | |
2296 | } | |
2297 | ||
2298 | end: | |
2299 | return status; | |
2300 | } | |
2301 | ||
2302 | static | |
2303 | enum bt_ctf_btr_status btr_string_end_cb( | |
2304 | struct bt_ctf_field_type *type, void *data) | |
2305 | { | |
2306 | struct bt_ctf_notif_iter *notit = data; | |
2307 | ||
fdf0e7a0 PP |
2308 | BT_LOGV("String (end) function called from BTR: " |
2309 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2310 | "ft-id=%s", | |
2311 | notit, notit->btr, type, | |
2312 | bt_ctf_field_type_id_string( | |
2313 | bt_ctf_field_type_get_type_id(type))); | |
2314 | ||
e98a2d6e PP |
2315 | /* Pop string field */ |
2316 | stack_pop(notit->stack); | |
2317 | ||
2318 | /* Go to next field */ | |
2319 | stack_top(notit->stack)->index++; | |
e98a2d6e PP |
2320 | return BT_CTF_BTR_STATUS_OK; |
2321 | } | |
2322 | ||
2323 | enum bt_ctf_btr_status btr_compound_begin_cb( | |
2324 | struct bt_ctf_field_type *type, void *data) | |
2325 | { | |
2326 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2327 | struct bt_ctf_notif_iter *notit = data; | |
2328 | struct bt_ctf_field *field; | |
2329 | int ret; | |
2330 | ||
fdf0e7a0 PP |
2331 | BT_LOGV("Compound (beginning) function called from BTR: " |
2332 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2333 | "ft-id=%s", | |
2334 | notit, notit->btr, type, | |
2335 | bt_ctf_field_type_id_string( | |
2336 | bt_ctf_field_type_get_type_id(type))); | |
2337 | ||
e98a2d6e PP |
2338 | /* Create field */ |
2339 | if (stack_empty(notit->stack)) { | |
2340 | /* Root: create dynamic scope field */ | |
2341 | *notit->cur_dscope_field = bt_ctf_field_create(type); | |
2342 | field = *notit->cur_dscope_field; | |
2343 | ||
2344 | /* | |
2345 | * Field will be put at the end of this function | |
2346 | * (stack_push() will take one reference, but this | |
2347 | * reference is lost upon the equivalent stack_pop() | |
2348 | * later), so also get it for our context to own it. | |
2349 | */ | |
2350 | bt_get(*notit->cur_dscope_field); | |
fdf0e7a0 PP |
2351 | |
2352 | if (!field) { | |
2353 | BT_LOGE("Cannot create compound field: " | |
2354 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
2355 | notit, type, | |
2356 | bt_ctf_field_type_id_string( | |
2357 | bt_ctf_field_type_get_type_id(type))); | |
2358 | status = BT_CTF_BTR_STATUS_ERROR; | |
2359 | goto end; | |
2360 | } | |
e98a2d6e PP |
2361 | } else { |
2362 | field = get_next_field(notit); | |
fdf0e7a0 PP |
2363 | if (!field) { |
2364 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); | |
2365 | status = BT_CTF_BTR_STATUS_ERROR; | |
2366 | goto end; | |
2367 | } | |
e98a2d6e PP |
2368 | } |
2369 | ||
2370 | /* Push field */ | |
fdf0e7a0 | 2371 | assert(field); |
e98a2d6e PP |
2372 | ret = stack_push(notit->stack, field); |
2373 | if (ret) { | |
fdf0e7a0 PP |
2374 | BT_LOGE("Cannot push compound field onto the stack: " |
2375 | "notit-addr=%p, ft-addr=%p, ft-id=%s, ret=%d", | |
2376 | notit, type, | |
2377 | bt_ctf_field_type_id_string( | |
2378 | bt_ctf_field_type_get_type_id(type)), | |
2379 | ret); | |
e98a2d6e PP |
2380 | status = BT_CTF_BTR_STATUS_ERROR; |
2381 | goto end; | |
2382 | } | |
2383 | ||
2384 | end: | |
2385 | BT_PUT(field); | |
2386 | ||
2387 | return status; | |
2388 | } | |
2389 | ||
2390 | enum bt_ctf_btr_status btr_compound_end_cb( | |
2391 | struct bt_ctf_field_type *type, void *data) | |
2392 | { | |
2393 | struct bt_ctf_notif_iter *notit = data; | |
2394 | ||
fdf0e7a0 PP |
2395 | BT_LOGV("Compound (end) function called from BTR: " |
2396 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2397 | "ft-id=%s", | |
2398 | notit, notit->btr, type, | |
2399 | bt_ctf_field_type_id_string( | |
2400 | bt_ctf_field_type_get_type_id(type))); | |
e98a2d6e PP |
2401 | assert(!stack_empty(notit->stack)); |
2402 | ||
2403 | /* Pop stack */ | |
2404 | stack_pop(notit->stack); | |
2405 | ||
2406 | /* If the stack is not empty, increment the base's index */ | |
2407 | if (!stack_empty(notit->stack)) { | |
2408 | stack_top(notit->stack)->index++; | |
2409 | } | |
2410 | ||
2411 | return BT_CTF_BTR_STATUS_OK; | |
2412 | } | |
2413 | ||
2414 | static | |
2415 | struct bt_ctf_field *resolve_field(struct bt_ctf_notif_iter *notit, | |
2416 | struct bt_ctf_field_path *path) | |
2417 | { | |
2418 | struct bt_ctf_field *field = NULL; | |
2419 | unsigned int i; | |
2420 | ||
fdf0e7a0 PP |
2421 | if (BT_LOG_ON_VERBOSE) { |
2422 | GString *gstr = bt_ctf_field_path_string(path); | |
2423 | ||
2424 | BT_LOGV("Resolving field path: notit-addr=%p, field-path=\"%s\"", | |
2425 | notit, gstr ? gstr->str : NULL); | |
2426 | ||
2427 | if (gstr) { | |
2428 | g_string_free(gstr, TRUE); | |
2429 | } | |
2430 | } | |
2431 | ||
e98a2d6e PP |
2432 | switch (bt_ctf_field_path_get_root_scope(path)) { |
2433 | case BT_CTF_SCOPE_TRACE_PACKET_HEADER: | |
2434 | field = notit->dscopes.trace_packet_header; | |
2435 | break; | |
2436 | case BT_CTF_SCOPE_STREAM_PACKET_CONTEXT: | |
2437 | field = notit->dscopes.stream_packet_context; | |
2438 | break; | |
2439 | case BT_CTF_SCOPE_STREAM_EVENT_HEADER: | |
2440 | field = notit->dscopes.stream_event_header; | |
2441 | break; | |
2442 | case BT_CTF_SCOPE_STREAM_EVENT_CONTEXT: | |
2443 | field = notit->dscopes.stream_event_context; | |
2444 | break; | |
2445 | case BT_CTF_SCOPE_EVENT_CONTEXT: | |
2446 | field = notit->dscopes.event_context; | |
2447 | break; | |
2448 | case BT_CTF_SCOPE_EVENT_FIELDS: | |
2449 | field = notit->dscopes.event_payload; | |
2450 | break; | |
2451 | default: | |
fdf0e7a0 PP |
2452 | BT_LOGF("Cannot resolve field path: unknown scope: " |
2453 | "notit-addr=%p, root-scope=%s", | |
2454 | notit, bt_ctf_scope_string( | |
2455 | bt_ctf_field_path_get_root_scope(path))); | |
2456 | abort(); | |
e98a2d6e PP |
2457 | } |
2458 | ||
2459 | if (!field) { | |
fdf0e7a0 PP |
2460 | BT_LOGW("Cannot resolve field path: root field not found: " |
2461 | "notit-addr=%p, root-scope=%s", | |
2462 | notit, bt_ctf_scope_string( | |
2463 | bt_ctf_field_path_get_root_scope(path))); | |
e98a2d6e PP |
2464 | goto end; |
2465 | } | |
2466 | ||
2467 | bt_get(field); | |
2468 | ||
2469 | for (i = 0; i < bt_ctf_field_path_get_index_count(path); ++i) { | |
2470 | struct bt_ctf_field *next_field = NULL; | |
2471 | struct bt_ctf_field_type *field_type; | |
2472 | int index = bt_ctf_field_path_get_index(path, i); | |
2473 | ||
2474 | field_type = bt_ctf_field_get_type(field); | |
fdf0e7a0 | 2475 | assert(field_type); |
e98a2d6e PP |
2476 | |
2477 | if (is_struct_type(field_type)) { | |
2478 | next_field = bt_ctf_field_structure_get_field_by_index( | |
2479 | field, index); | |
2480 | } else if (is_variant_type(field_type)) { | |
2481 | next_field = | |
2482 | bt_ctf_field_variant_get_current_field(field); | |
2483 | } | |
2484 | ||
2485 | BT_PUT(field); | |
2486 | BT_PUT(field_type); | |
2487 | ||
2488 | if (!next_field) { | |
fdf0e7a0 PP |
2489 | BT_LOGW("Cannot find next field: " |
2490 | "notit-addr=%p, ft-addr=%p, ft-id=%s, index=%d", | |
2491 | notit, field_type, | |
2492 | bt_ctf_field_type_id_string( | |
2493 | bt_ctf_field_type_get_type_id(field_type)), | |
2494 | index); | |
e98a2d6e PP |
2495 | goto end; |
2496 | } | |
2497 | ||
2498 | /* Move next field -> field */ | |
2499 | BT_MOVE(field, next_field); | |
2500 | } | |
2501 | ||
2502 | end: | |
2503 | return field; | |
2504 | } | |
2505 | ||
2506 | static | |
2507 | int64_t btr_get_sequence_length_cb(struct bt_ctf_field_type *type, void *data) | |
2508 | { | |
2509 | int64_t ret = -1; | |
2510 | int iret; | |
fdf0e7a0 | 2511 | struct bt_ctf_field *seq_field; |
e98a2d6e PP |
2512 | struct bt_ctf_field_path *field_path; |
2513 | struct bt_ctf_notif_iter *notit = data; | |
2cf1d51e | 2514 | struct bt_ctf_field *length_field = NULL; |
e98a2d6e PP |
2515 | uint64_t length; |
2516 | ||
2517 | field_path = bt_ctf_field_type_sequence_get_length_field_path(type); | |
fdf0e7a0 | 2518 | assert(field_path); |
2cf1d51e JG |
2519 | length_field = resolve_field(notit, field_path); |
2520 | if (!length_field) { | |
fdf0e7a0 PP |
2521 | BT_LOGW("Cannot resolve sequence field type's length field path: " |
2522 | "notit-addr=%p, ft-addr=%p", | |
2523 | notit, type); | |
e98a2d6e PP |
2524 | goto end; |
2525 | } | |
2526 | ||
2cf1d51e | 2527 | iret = bt_ctf_field_unsigned_integer_get_value(length_field, &length); |
e98a2d6e | 2528 | if (iret) { |
fdf0e7a0 PP |
2529 | BT_LOGE("Cannot get value of sequence length field: " |
2530 | "notit-addr=%p, field-addr=%p", | |
2531 | notit, length_field); | |
e98a2d6e PP |
2532 | goto end; |
2533 | } | |
2534 | ||
fdf0e7a0 PP |
2535 | seq_field = stack_top(notit->stack)->base; |
2536 | iret = bt_ctf_field_sequence_set_length(seq_field, length_field); | |
2cf1d51e | 2537 | if (iret) { |
fdf0e7a0 PP |
2538 | BT_LOGE("Cannot set sequence field's length field: " |
2539 | "notit-addr=%p, seq-field-addr=%p, " | |
2540 | "length-field-addr=%p, ", | |
2541 | notit, seq_field, length_field); | |
2cf1d51e JG |
2542 | goto end; |
2543 | } | |
fdf0e7a0 | 2544 | |
e98a2d6e PP |
2545 | ret = (int64_t) length; |
2546 | ||
2547 | end: | |
2cf1d51e | 2548 | BT_PUT(length_field); |
e98a2d6e PP |
2549 | BT_PUT(field_path); |
2550 | ||
2551 | return ret; | |
2552 | } | |
2553 | ||
2554 | static | |
2555 | struct bt_ctf_field_type *btr_get_variant_type_cb( | |
2556 | struct bt_ctf_field_type *type, void *data) | |
2557 | { | |
2558 | struct bt_ctf_field_path *path; | |
2559 | struct bt_ctf_notif_iter *notit = data; | |
fdf0e7a0 | 2560 | struct bt_ctf_field *var_field; |
e98a2d6e PP |
2561 | struct bt_ctf_field *tag_field = NULL; |
2562 | struct bt_ctf_field *selected_field = NULL; | |
2563 | struct bt_ctf_field_type *selected_field_type = NULL; | |
2564 | ||
2565 | path = bt_ctf_field_type_variant_get_tag_field_path(type); | |
fdf0e7a0 | 2566 | assert(path); |
e98a2d6e PP |
2567 | tag_field = resolve_field(notit, path); |
2568 | if (!tag_field) { | |
fdf0e7a0 PP |
2569 | BT_LOGW("Cannot resolve variant field type's tag field path: " |
2570 | "notit-addr=%p, ft-addr=%p", | |
2571 | notit, type); | |
e98a2d6e PP |
2572 | goto end; |
2573 | } | |
2574 | ||
2575 | /* | |
2576 | * We found the enumeration tag field instance which should be | |
2577 | * able to select a current field for this variant. This | |
2578 | * callback function we're in is called _after_ | |
2579 | * compound_begin(), so the current stack top's base field is | |
2580 | * the variant field in question. We get the selected field here | |
2581 | * thanks to this tag field (thus creating the selected field), | |
2582 | * which will also provide us with its type. Then, this field | |
2583 | * will remain the current selected one until the next callback | |
2584 | * function call which is used to fill the current selected | |
2585 | * field. | |
2586 | */ | |
fdf0e7a0 PP |
2587 | var_field = stack_top(notit->stack)->base; |
2588 | selected_field = bt_ctf_field_variant_get_field(var_field, tag_field); | |
e98a2d6e | 2589 | if (!selected_field) { |
fdf0e7a0 PP |
2590 | BT_LOGW("Cannot get variant field's selection using tag field: " |
2591 | "notit-addr=%p, var-field-addr=%p, tag-field-addr=%p", | |
2592 | notit, var_field, tag_field); | |
e98a2d6e PP |
2593 | goto end; |
2594 | } | |
2595 | ||
2596 | selected_field_type = bt_ctf_field_get_type(selected_field); | |
2597 | ||
2598 | end: | |
2599 | BT_PUT(tag_field); | |
2600 | BT_PUT(selected_field); | |
f77ae72a | 2601 | BT_PUT(path); |
e98a2d6e PP |
2602 | |
2603 | return selected_field_type; | |
2604 | } | |
2605 | ||
1556a1af JG |
2606 | static |
2607 | int set_event_clocks(struct bt_ctf_event *event, | |
2608 | struct bt_ctf_notif_iter *notit) | |
2609 | { | |
2610 | int ret; | |
2611 | GHashTableIter iter; | |
ac0c6bdd | 2612 | struct bt_ctf_clock_class *clock_class; |
1556a1af JG |
2613 | uint64_t *clock_state; |
2614 | ||
2615 | g_hash_table_iter_init(&iter, notit->clock_states); | |
2616 | ||
ac0c6bdd | 2617 | while (g_hash_table_iter_next(&iter, (gpointer) &clock_class, |
1556a1af JG |
2618 | (gpointer) &clock_state)) { |
2619 | struct bt_ctf_clock_value *clock_value; | |
2620 | ||
ac0c6bdd PP |
2621 | clock_value = bt_ctf_clock_value_create(clock_class, |
2622 | *clock_state); | |
1556a1af | 2623 | if (!clock_value) { |
fdf0e7a0 PP |
2624 | BT_LOGE("Cannot create clock value from clock class: " |
2625 | "notit-addr=%p, clock-class-addr=%p, " | |
2626 | "clock-class-name=\"%s\"", | |
2627 | notit, clock_class, | |
2628 | bt_ctf_clock_class_get_name(clock_class)); | |
1556a1af JG |
2629 | ret = -1; |
2630 | goto end; | |
2631 | } | |
3f3c46b8 | 2632 | ret = bt_ctf_event_set_clock_value(event, clock_value); |
1556a1af JG |
2633 | bt_put(clock_value); |
2634 | if (ret) { | |
fdf0e7a0 PP |
2635 | struct bt_ctf_event_class *event_class = |
2636 | bt_ctf_event_get_class(event); | |
2637 | ||
2638 | assert(event_class); | |
2639 | BT_LOGE("Cannot set event's clock value: " | |
2640 | "notit-addr=%p, event-addr=%p, " | |
2641 | "event-class-name=\"%s\", " | |
2642 | "event-class-id=%" PRId64 ", " | |
2643 | "clock-class-addr=%p, " | |
2644 | "clock-class-name=\"%s\", " | |
2645 | "clock-value-addr=%p", | |
2646 | notit, event, | |
2647 | bt_ctf_event_class_get_name(event_class), | |
2648 | bt_ctf_event_class_get_id(event_class), | |
2649 | clock_class, | |
2650 | bt_ctf_clock_class_get_name(clock_class), | |
2651 | clock_value); | |
2652 | bt_put(event_class); | |
1556a1af JG |
2653 | goto end; |
2654 | } | |
2655 | } | |
fdf0e7a0 | 2656 | |
1556a1af JG |
2657 | ret = 0; |
2658 | end: | |
2659 | return ret; | |
2660 | } | |
2661 | ||
78586d8a JG |
2662 | static |
2663 | struct bt_ctf_event *create_event(struct bt_ctf_notif_iter *notit) | |
e98a2d6e | 2664 | { |
e98a2d6e | 2665 | int ret; |
78586d8a | 2666 | struct bt_ctf_event *event; |
e98a2d6e | 2667 | |
fdf0e7a0 PP |
2668 | BT_LOGV("Creating event for event notification: " |
2669 | "notit-addr=%p, event-class-addr=%p, " | |
2670 | "event-class-name=\"%s\", " | |
2671 | "event-class-id=%" PRId64, | |
2672 | notit, notit->meta.event_class, | |
2673 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2674 | bt_ctf_event_class_get_id(notit->meta.event_class)); | |
2675 | ||
78586d8a | 2676 | /* Create event object. */ |
e98a2d6e PP |
2677 | event = bt_ctf_event_create(notit->meta.event_class); |
2678 | if (!event) { | |
fdf0e7a0 PP |
2679 | BT_LOGE("Cannot create event: " |
2680 | "notit-addr=%p, event-class-addr=%p, " | |
2681 | "event-class-name=\"%s\", " | |
2682 | "event-class-id=%" PRId64, | |
2683 | notit, notit->meta.event_class, | |
2684 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2685 | bt_ctf_event_class_get_id(notit->meta.event_class)); | |
e98a2d6e PP |
2686 | goto error; |
2687 | } | |
2688 | ||
78586d8a | 2689 | /* Set header, stream event context, context, and payload fields. */ |
e98a2d6e PP |
2690 | ret = bt_ctf_event_set_header(event, |
2691 | notit->dscopes.stream_event_header); | |
2692 | if (ret) { | |
fdf0e7a0 PP |
2693 | BT_LOGE("Cannot set event's header field: " |
2694 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2695 | "event-class-name=\"%s\", " | |
2696 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2697 | notit, event, notit->meta.event_class, | |
2698 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2699 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2700 | notit->dscopes.stream_event_header); | |
e98a2d6e PP |
2701 | goto error; |
2702 | } | |
2703 | ||
2704 | ret = bt_ctf_event_set_stream_event_context(event, | |
2705 | notit->dscopes.stream_event_context); | |
2706 | if (ret) { | |
fdf0e7a0 PP |
2707 | BT_LOGE("Cannot set event's context field: " |
2708 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2709 | "event-class-name=\"%s\", " | |
2710 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2711 | notit, event, notit->meta.event_class, | |
2712 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2713 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2714 | notit->dscopes.stream_event_context); | |
e98a2d6e PP |
2715 | goto error; |
2716 | } | |
2717 | ||
2718 | ret = bt_ctf_event_set_event_context(event, | |
2719 | notit->dscopes.event_context); | |
2720 | if (ret) { | |
fdf0e7a0 PP |
2721 | BT_LOGE("Cannot set event's stream event context field: " |
2722 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2723 | "event-class-name=\"%s\", " | |
2724 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2725 | notit, event, notit->meta.event_class, | |
2726 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2727 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2728 | notit->dscopes.event_context); | |
e98a2d6e PP |
2729 | goto error; |
2730 | } | |
2731 | ||
9ac68eb1 | 2732 | ret = bt_ctf_event_set_event_payload(event, |
e98a2d6e PP |
2733 | notit->dscopes.event_payload); |
2734 | if (ret) { | |
fdf0e7a0 PP |
2735 | BT_LOGE("Cannot set event's payload field: " |
2736 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2737 | "event-class-name=\"%s\", " | |
2738 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2739 | notit, event, notit->meta.event_class, | |
2740 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2741 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2742 | notit->dscopes.event_payload); | |
e98a2d6e PP |
2743 | goto error; |
2744 | } | |
2745 | ||
1556a1af JG |
2746 | ret = set_event_clocks(event, notit); |
2747 | if (ret) { | |
fdf0e7a0 PP |
2748 | BT_LOGE("Cannot set event's clock values: " |
2749 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2750 | "event-class-name=\"%s\", " | |
2751 | "event-class-id=%" PRId64, | |
2752 | notit, event, notit->meta.event_class, | |
2753 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2754 | bt_ctf_event_class_get_id(notit->meta.event_class)); | |
1556a1af JG |
2755 | goto error; |
2756 | } | |
2757 | ||
78586d8a | 2758 | /* Associate with current packet. */ |
e98a2d6e PP |
2759 | assert(notit->packet); |
2760 | ret = bt_ctf_event_set_packet(event, notit->packet); | |
2761 | if (ret) { | |
fdf0e7a0 PP |
2762 | BT_LOGE("Cannot set event's header field: " |
2763 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2764 | "event-class-name=\"%s\", " | |
2765 | "event-class-id=%" PRId64 ", packet-addr=%p", | |
2766 | notit, event, notit->meta.event_class, | |
2767 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2768 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2769 | notit->packet); | |
e98a2d6e PP |
2770 | goto error; |
2771 | } | |
2772 | ||
2773 | goto end; | |
fdf0e7a0 | 2774 | |
e98a2d6e PP |
2775 | error: |
2776 | BT_PUT(event); | |
fdf0e7a0 | 2777 | |
e98a2d6e PP |
2778 | end: |
2779 | return event; | |
2780 | } | |
2781 | ||
0659c536 PP |
2782 | static |
2783 | uint64_t get_cur_stream_instance_id(struct bt_ctf_notif_iter *notit) | |
2784 | { | |
2785 | struct bt_ctf_field *stream_instance_id_field = NULL; | |
2786 | uint64_t stream_instance_id = -1ULL; | |
2787 | int ret; | |
2788 | ||
2789 | if (!notit->dscopes.trace_packet_header) { | |
2790 | goto end; | |
2791 | } | |
2792 | ||
2793 | stream_instance_id_field = bt_ctf_field_structure_get_field_by_name( | |
2794 | notit->dscopes.trace_packet_header, "stream_instance_id"); | |
2795 | if (!stream_instance_id_field) { | |
2796 | goto end; | |
2797 | } | |
2798 | ||
2799 | ret = bt_ctf_field_unsigned_integer_get_value(stream_instance_id_field, | |
2800 | &stream_instance_id); | |
2801 | if (ret) { | |
2802 | stream_instance_id = -1ULL; | |
2803 | goto end; | |
2804 | } | |
2805 | ||
2806 | end: | |
2807 | bt_put(stream_instance_id_field); | |
2808 | return stream_instance_id; | |
2809 | } | |
2810 | ||
78586d8a | 2811 | static |
5184a1d6 | 2812 | int set_stream(struct bt_ctf_notif_iter *notit) |
e98a2d6e | 2813 | { |
5184a1d6 | 2814 | int ret = 0; |
e98a2d6e | 2815 | struct bt_ctf_stream *stream = NULL; |
e98a2d6e | 2816 | |
fdf0e7a0 PP |
2817 | BT_LOGV("Calling user function (get stream): notit-addr=%p, " |
2818 | "stream-class-addr=%p, stream-class-name=\"%s\", " | |
2819 | "stream-class-id=%" PRId64, | |
2820 | notit, notit->meta.stream_class, | |
2821 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
2822 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
5184a1d6 | 2823 | stream = bt_get(notit->medium.medops.get_stream( |
0659c536 PP |
2824 | notit->meta.stream_class, get_cur_stream_instance_id(notit), |
2825 | notit->medium.data)); | |
5184a1d6 | 2826 | BT_LOGV("User function returned: stream-addr=%p", stream); |
e98a2d6e | 2827 | if (!stream) { |
fdf0e7a0 | 2828 | BT_LOGW_STR("User function failed to return a stream object for the given stream class."); |
5184a1d6 PP |
2829 | ret = -1; |
2830 | goto end; | |
2831 | } | |
2832 | ||
2833 | if (notit->stream && stream != notit->stream) { | |
2834 | BT_LOGW("User function returned a different stream than the previous one for the same sequence of packets."); | |
2835 | ret = -1; | |
2836 | goto end; | |
2837 | } | |
2838 | ||
2839 | BT_MOVE(notit->stream, stream); | |
2840 | ||
2841 | end: | |
2842 | bt_put(stream); | |
2843 | return ret; | |
2844 | } | |
2845 | ||
2846 | static | |
2847 | void create_packet(struct bt_ctf_notif_iter *notit) | |
2848 | { | |
2849 | int ret; | |
2850 | struct bt_ctf_packet *packet = NULL; | |
2851 | ||
2852 | BT_LOGV("Creating packet for packet notification: " | |
2853 | "notit-addr=%p", notit); | |
2854 | ||
2855 | /* Ask the user for the stream */ | |
2856 | ret = set_stream(notit); | |
2857 | if (ret) { | |
e98a2d6e PP |
2858 | goto error; |
2859 | } | |
2860 | ||
fdf0e7a0 PP |
2861 | BT_LOGV("Creating packet from stream: " |
2862 | "notit-addr=%p, stream-addr=%p, " | |
2863 | "stream-class-addr=%p, " | |
2864 | "stream-class-name=\"%s\", " | |
2865 | "stream-class-id=%" PRId64, | |
5184a1d6 | 2866 | notit, notit->stream, notit->meta.stream_class, |
fdf0e7a0 PP |
2867 | bt_ctf_stream_class_get_name(notit->meta.stream_class), |
2868 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
2869 | ||
e98a2d6e | 2870 | /* Create packet */ |
5184a1d6 | 2871 | packet = bt_ctf_packet_create(notit->stream); |
e98a2d6e | 2872 | if (!packet) { |
fdf0e7a0 PP |
2873 | BT_LOGE("Cannot create packet from stream: " |
2874 | "notit-addr=%p, stream-addr=%p, " | |
2875 | "stream-class-addr=%p, " | |
2876 | "stream-class-name=\"%s\", " | |
2877 | "stream-class-id=%" PRId64, | |
5184a1d6 | 2878 | notit, notit->stream, notit->meta.stream_class, |
fdf0e7a0 PP |
2879 | bt_ctf_stream_class_get_name(notit->meta.stream_class), |
2880 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
e98a2d6e PP |
2881 | goto error; |
2882 | } | |
2883 | ||
2884 | /* Set packet's context and header fields */ | |
2885 | if (notit->dscopes.trace_packet_header) { | |
2886 | ret = bt_ctf_packet_set_header(packet, | |
fdf0e7a0 | 2887 | notit->dscopes.trace_packet_header); |
e98a2d6e | 2888 | if (ret) { |
fdf0e7a0 PP |
2889 | BT_LOGE("Cannot set packet's header field: " |
2890 | "notit-addr=%p, packet-addr=%p, " | |
2891 | "stream-addr=%p, " | |
2892 | "stream-class-addr=%p, " | |
2893 | "stream-class-name=\"%s\", " | |
2894 | "stream-class-id=%" PRId64 ", " | |
2895 | "field-addr=%p", | |
5184a1d6 | 2896 | notit, packet, notit->stream, notit->meta.stream_class, |
fdf0e7a0 PP |
2897 | bt_ctf_stream_class_get_name(notit->meta.stream_class), |
2898 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
2899 | notit->dscopes.trace_packet_header); | |
e98a2d6e PP |
2900 | goto error; |
2901 | } | |
2902 | } | |
2903 | ||
2904 | if (notit->dscopes.stream_packet_context) { | |
2905 | ret = bt_ctf_packet_set_context(packet, | |
fdf0e7a0 | 2906 | notit->dscopes.stream_packet_context); |
e98a2d6e | 2907 | if (ret) { |
fdf0e7a0 PP |
2908 | BT_LOGE("Cannot set packet's context field: " |
2909 | "notit-addr=%p, packet-addr=%p, " | |
2910 | "stream-addr=%p, " | |
2911 | "stream-class-addr=%p, " | |
2912 | "stream-class-name=\"%s\", " | |
2913 | "stream-class-id=%" PRId64 ", " | |
2914 | "field-addr=%p", | |
5184a1d6 | 2915 | notit, packet, notit->stream, notit->meta.stream_class, |
fdf0e7a0 PP |
2916 | bt_ctf_stream_class_get_name(notit->meta.stream_class), |
2917 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
2918 | notit->dscopes.trace_packet_header); | |
e98a2d6e PP |
2919 | goto error; |
2920 | } | |
2921 | } | |
2922 | ||
2923 | goto end; | |
fdf0e7a0 | 2924 | |
e98a2d6e PP |
2925 | error: |
2926 | BT_PUT(packet); | |
fdf0e7a0 | 2927 | |
e98a2d6e PP |
2928 | end: |
2929 | BT_MOVE(notit->packet, packet); | |
2930 | } | |
2931 | ||
78586d8a JG |
2932 | static |
2933 | void notify_new_packet(struct bt_ctf_notif_iter *notit, | |
2934 | struct bt_notification **notification) | |
e98a2d6e | 2935 | { |
78586d8a | 2936 | struct bt_notification *ret; |
e98a2d6e | 2937 | |
78586d8a | 2938 | /* Initialize the iterator's current packet */ |
e98a2d6e PP |
2939 | create_packet(notit); |
2940 | if (!notit->packet) { | |
fdf0e7a0 PP |
2941 | BT_LOGE("Cannot create packet for packet notification: " |
2942 | "notit-addr=%p", notit); | |
78586d8a | 2943 | return; |
e98a2d6e PP |
2944 | } |
2945 | ||
ea0e619e | 2946 | ret = bt_notification_packet_begin_create(notit->packet); |
78586d8a | 2947 | if (!ret) { |
fdf0e7a0 PP |
2948 | BT_LOGE("Cannot create packet beginning notification: " |
2949 | "notit-addr=%p, packet-addr=%p", | |
2950 | notit, notit->packet); | |
78586d8a JG |
2951 | return; |
2952 | } | |
2953 | *notification = ret; | |
e98a2d6e PP |
2954 | } |
2955 | ||
78586d8a JG |
2956 | static |
2957 | void notify_end_of_packet(struct bt_ctf_notif_iter *notit, | |
2958 | struct bt_notification **notification) | |
e98a2d6e | 2959 | { |
78586d8a | 2960 | struct bt_notification *ret; |
e98a2d6e | 2961 | |
e98a2d6e | 2962 | if (!notit->packet) { |
78586d8a | 2963 | return; |
e98a2d6e PP |
2964 | } |
2965 | ||
78586d8a JG |
2966 | ret = bt_notification_packet_end_create(notit->packet); |
2967 | if (!ret) { | |
fdf0e7a0 PP |
2968 | BT_LOGE("Cannot create packet end notification: " |
2969 | "notit-addr=%p, packet-addr=%p", | |
2970 | notit, notit->packet); | |
78586d8a JG |
2971 | return; |
2972 | } | |
2973 | BT_PUT(notit->packet); | |
2974 | *notification = ret; | |
e98a2d6e PP |
2975 | } |
2976 | ||
78586d8a JG |
2977 | static |
2978 | void notify_event(struct bt_ctf_notif_iter *notit, | |
0982a26d | 2979 | struct bt_clock_class_priority_map *cc_prio_map, |
78586d8a | 2980 | struct bt_notification **notification) |
e98a2d6e | 2981 | { |
9b876b7b | 2982 | struct bt_ctf_event *event = NULL; |
78586d8a | 2983 | struct bt_notification *ret = NULL; |
e98a2d6e | 2984 | |
9b876b7b PP |
2985 | /* Make sure that the event contains at least one bit of data */ |
2986 | if (notit->buf.at == notit->buf.last_eh_at) { | |
2987 | BT_LOGE("Cannot create empty event with 0 bits of data: " | |
2988 | "notit-addr=%p, packet-cur=%zu", | |
2989 | notit, packet_at(notit)); | |
2990 | goto end; | |
2991 | } | |
2992 | ||
e98a2d6e PP |
2993 | /* Create event */ |
2994 | event = create_event(notit); | |
2995 | if (!event) { | |
fdf0e7a0 PP |
2996 | BT_LOGE("Cannot create event for event notification: " |
2997 | "notit-addr=%p", notit); | |
78586d8a | 2998 | goto end; |
e98a2d6e | 2999 | } |
e98a2d6e | 3000 | |
0982a26d | 3001 | ret = bt_notification_event_create(event, cc_prio_map); |
78586d8a | 3002 | if (!ret) { |
fdf0e7a0 PP |
3003 | BT_LOGE("Cannot create event notification: " |
3004 | "notit-addr=%p, event-addr=%p, " | |
3005 | "cc-prio-map-addr=%p", | |
3006 | notit, event, cc_prio_map); | |
78586d8a | 3007 | goto end; |
e98a2d6e | 3008 | } |
78586d8a JG |
3009 | *notification = ret; |
3010 | end: | |
3011 | BT_PUT(event); | |
e98a2d6e PP |
3012 | } |
3013 | ||
5f870343 JG |
3014 | static |
3015 | void init_trace_field_path_cache(struct bt_ctf_trace *trace, | |
3016 | struct trace_field_path_cache *trace_field_path_cache) | |
3017 | { | |
3018 | int stream_id = -1; | |
3019 | int stream_instance_id = -1; | |
3020 | int i, count; | |
3021 | struct bt_ctf_field_type *packet_header = NULL; | |
3022 | ||
3023 | packet_header = bt_ctf_trace_get_packet_header_type(trace); | |
3024 | if (!packet_header) { | |
3025 | goto end; | |
3026 | } | |
3027 | ||
3028 | if (!bt_ctf_field_type_is_structure(packet_header)) { | |
3029 | goto end; | |
3030 | } | |
3031 | ||
3032 | count = bt_ctf_field_type_structure_get_field_count(packet_header); | |
fdf0e7a0 | 3033 | assert(count >= 0); |
5f870343 JG |
3034 | |
3035 | for (i = 0; (i < count && (stream_id == -1 || stream_instance_id == -1)); i++) { | |
3036 | int ret; | |
3037 | const char *field_name; | |
3038 | ||
3039 | ret = bt_ctf_field_type_structure_get_field(packet_header, | |
3040 | &field_name, NULL, i); | |
3041 | if (ret) { | |
fdf0e7a0 PP |
3042 | BT_LOGE("Cannot get structure field's field: " |
3043 | "field-addr=%p, index=%d", | |
3044 | packet_header, i); | |
5f870343 JG |
3045 | goto end; |
3046 | } | |
3047 | ||
3048 | if (stream_id == -1 && !strcmp(field_name, "stream_id")) { | |
3049 | stream_id = i; | |
3050 | } else if (stream_instance_id == -1 && | |
3051 | !strcmp(field_name, "stream_instance_id")) { | |
3052 | stream_instance_id = i; | |
3053 | } | |
3054 | } | |
fdf0e7a0 | 3055 | |
5f870343 JG |
3056 | end: |
3057 | trace_field_path_cache->stream_id = stream_id; | |
3058 | trace_field_path_cache->stream_instance_id = stream_instance_id; | |
3059 | BT_PUT(packet_header); | |
3060 | } | |
3061 | ||
c44c3e70 | 3062 | BT_HIDDEN |
e98a2d6e PP |
3063 | struct bt_ctf_notif_iter *bt_ctf_notif_iter_create(struct bt_ctf_trace *trace, |
3064 | size_t max_request_sz, | |
55314f2a | 3065 | struct bt_ctf_notif_iter_medium_ops medops, void *data) |
e98a2d6e PP |
3066 | { |
3067 | struct bt_ctf_notif_iter *notit = NULL; | |
3068 | struct bt_ctf_btr_cbs cbs = { | |
3069 | .types = { | |
3070 | .signed_int = btr_signed_int_cb, | |
3071 | .unsigned_int = btr_unsigned_int_cb, | |
3072 | .floating_point = btr_floating_point_cb, | |
3073 | .string_begin = btr_string_begin_cb, | |
3074 | .string = btr_string_cb, | |
3075 | .string_end = btr_string_end_cb, | |
3076 | .compound_begin = btr_compound_begin_cb, | |
3077 | .compound_end = btr_compound_end_cb, | |
3078 | }, | |
3079 | .query = { | |
3080 | .get_sequence_length = btr_get_sequence_length_cb, | |
3081 | .get_variant_type = btr_get_variant_type_cb, | |
3082 | }, | |
3083 | }; | |
3084 | ||
3085 | assert(trace); | |
3086 | assert(medops.request_bytes); | |
f3985ab1 | 3087 | assert(medops.get_stream); |
fdf0e7a0 PP |
3088 | BT_LOGD("Creating CTF plugin notification iterator: " |
3089 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
3090 | "data=%p", | |
3091 | trace, bt_ctf_trace_get_name(trace), max_request_sz, data); | |
e98a2d6e PP |
3092 | notit = g_new0(struct bt_ctf_notif_iter, 1); |
3093 | if (!notit) { | |
fdf0e7a0 | 3094 | BT_LOGE_STR("Failed to allocate one CTF plugin notification iterator."); |
e98a2d6e PP |
3095 | goto end; |
3096 | } | |
c44c3e70 | 3097 | notit->clock_states = g_hash_table_new_full(g_direct_hash, |
fdf0e7a0 | 3098 | g_direct_equal, bt_put, g_free); |
c44c3e70 | 3099 | if (!notit->clock_states) { |
fdf0e7a0 | 3100 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
c44c3e70 JG |
3101 | goto error; |
3102 | } | |
35d47007 | 3103 | notit->meta.trace = bt_get(trace); |
e98a2d6e PP |
3104 | notit->medium.medops = medops; |
3105 | notit->medium.max_request_sz = max_request_sz; | |
3106 | notit->medium.data = data; | |
e98a2d6e PP |
3107 | notit->stack = stack_new(notit); |
3108 | if (!notit->stack) { | |
fdf0e7a0 | 3109 | BT_LOGE_STR("Failed to create field stack."); |
c44c3e70 | 3110 | goto error; |
e98a2d6e PP |
3111 | } |
3112 | ||
55314f2a | 3113 | notit->btr = bt_ctf_btr_create(cbs, notit); |
e98a2d6e | 3114 | if (!notit->btr) { |
fdf0e7a0 | 3115 | BT_LOGE_STR("Failed to create binary type reader (BTR)."); |
c44c3e70 | 3116 | goto error; |
e98a2d6e PP |
3117 | } |
3118 | ||
3119 | bt_ctf_notif_iter_reset(notit); | |
5f870343 JG |
3120 | init_trace_field_path_cache(trace, ¬it->trace_field_path_cache); |
3121 | notit->sc_field_path_caches = g_hash_table_new_full(g_direct_hash, | |
fdf0e7a0 | 3122 | g_direct_equal, bt_put, g_free); |
5f870343 | 3123 | if (!notit->sc_field_path_caches) { |
fdf0e7a0 | 3124 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
5f870343 JG |
3125 | goto error; |
3126 | } | |
3127 | ||
3128 | notit->field_overrides = g_hash_table_new_full(g_direct_hash, | |
fdf0e7a0 | 3129 | g_direct_equal, bt_put, g_free); |
5f870343 | 3130 | if (!notit->field_overrides) { |
fdf0e7a0 | 3131 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
5f870343 JG |
3132 | goto error; |
3133 | } | |
3134 | ||
fdf0e7a0 PP |
3135 | BT_LOGD("Created CTF plugin notification iterator: " |
3136 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
3137 | "data=%p, notit-addr=%p", | |
3138 | trace, bt_ctf_trace_get_name(trace), max_request_sz, data, | |
3139 | notit); | |
3140 | ||
e98a2d6e PP |
3141 | end: |
3142 | return notit; | |
fdf0e7a0 | 3143 | |
c44c3e70 JG |
3144 | error: |
3145 | bt_ctf_notif_iter_destroy(notit); | |
3146 | notit = NULL; | |
3147 | goto end; | |
e98a2d6e PP |
3148 | } |
3149 | ||
3150 | void bt_ctf_notif_iter_destroy(struct bt_ctf_notif_iter *notit) | |
3151 | { | |
3152 | BT_PUT(notit->meta.trace); | |
3153 | BT_PUT(notit->meta.stream_class); | |
3154 | BT_PUT(notit->meta.event_class); | |
3155 | BT_PUT(notit->packet); | |
5184a1d6 | 3156 | BT_PUT(notit->stream); |
5f870343 | 3157 | BT_PUT(notit->cur_timestamp_end); |
e98a2d6e PP |
3158 | put_all_dscopes(notit); |
3159 | ||
fdf0e7a0 PP |
3160 | BT_LOGD("Destroying CTF plugin notification iterator: addr=%p", notit); |
3161 | ||
e98a2d6e | 3162 | if (notit->stack) { |
fdf0e7a0 | 3163 | BT_LOGD_STR("Destroying field stack."); |
e98a2d6e PP |
3164 | stack_destroy(notit->stack); |
3165 | } | |
3166 | ||
3167 | if (notit->btr) { | |
fdf0e7a0 | 3168 | BT_LOGD("Destroying BTR: btr-addr=%p", notit->btr); |
e98a2d6e PP |
3169 | bt_ctf_btr_destroy(notit->btr); |
3170 | } | |
3171 | ||
c44c3e70 JG |
3172 | if (notit->clock_states) { |
3173 | g_hash_table_destroy(notit->clock_states); | |
3174 | } | |
5f870343 JG |
3175 | |
3176 | if (notit->sc_field_path_caches) { | |
3177 | g_hash_table_destroy(notit->sc_field_path_caches); | |
3178 | } | |
3179 | ||
3180 | if (notit->field_overrides) { | |
3181 | g_hash_table_destroy(notit->field_overrides); | |
3182 | } | |
fdf0e7a0 | 3183 | |
e98a2d6e PP |
3184 | g_free(notit); |
3185 | } | |
3186 | ||
3187 | enum bt_ctf_notif_iter_status bt_ctf_notif_iter_get_next_notification( | |
3188 | struct bt_ctf_notif_iter *notit, | |
0982a26d | 3189 | struct bt_clock_class_priority_map *cc_prio_map, |
78586d8a | 3190 | struct bt_notification **notification) |
e98a2d6e PP |
3191 | { |
3192 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
3193 | ||
3194 | assert(notit); | |
3195 | assert(notification); | |
3196 | ||
fdf0e7a0 PP |
3197 | BT_LOGV("Getting next notification: notit-addr=%p, cc-prio-map-addr=%p", |
3198 | notit, cc_prio_map); | |
3199 | ||
e98a2d6e PP |
3200 | while (true) { |
3201 | status = handle_state(notit); | |
7cdc2bab | 3202 | if (status == BT_CTF_NOTIF_ITER_STATUS_AGAIN) { |
fdf0e7a0 | 3203 | BT_LOGV_STR("Medium returned BT_CTF_NOTIF_ITER_STATUS_AGAIN."); |
7cdc2bab MD |
3204 | goto end; |
3205 | } | |
e98a2d6e PP |
3206 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { |
3207 | if (status == BT_CTF_NOTIF_ITER_STATUS_EOF) { | |
fdf0e7a0 | 3208 | BT_LOGV_STR("Medium returned BT_CTF_NOTIF_ITER_STATUS_EOF."); |
e98a2d6e | 3209 | } else { |
fdf0e7a0 PP |
3210 | BT_LOGW("Cannot handle state: " |
3211 | "notit-addr=%p, state=%s", | |
3212 | notit, state_string(notit->state)); | |
e98a2d6e PP |
3213 | } |
3214 | goto end; | |
3215 | } | |
3216 | ||
3217 | switch (notit->state) { | |
3218 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
fdf0e7a0 | 3219 | /* notify_new_packet() logs errors */ |
e98a2d6e PP |
3220 | notify_new_packet(notit, notification); |
3221 | if (!*notification) { | |
3222 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
3223 | } | |
3224 | goto end; | |
3225 | case STATE_EMIT_NOTIF_EVENT: | |
fdf0e7a0 | 3226 | /* notify_event() logs errors */ |
0982a26d | 3227 | notify_event(notit, cc_prio_map, notification); |
e98a2d6e PP |
3228 | if (!*notification) { |
3229 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
3230 | } | |
3231 | goto end; | |
3232 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
5f870343 JG |
3233 | /* Update clock with timestamp_end field. */ |
3234 | if (notit->cur_timestamp_end) { | |
3235 | enum bt_ctf_btr_status btr_status; | |
3236 | struct bt_ctf_field_type *field_type = | |
3237 | bt_ctf_field_get_type( | |
3238 | notit->cur_timestamp_end); | |
3239 | ||
fdf0e7a0 | 3240 | assert(field_type); |
f45bfe88 PP |
3241 | btr_status = update_clock(notit, |
3242 | notit->cur_timestamp_end); | |
5f870343 JG |
3243 | BT_PUT(field_type); |
3244 | if (btr_status != BT_CTF_BTR_STATUS_OK) { | |
fdf0e7a0 PP |
3245 | BT_LOGW("Cannot update stream's clock value: " |
3246 | "notit-addr=%p", notit); | |
5f870343 JG |
3247 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
3248 | goto end; | |
3249 | } | |
3250 | } | |
3251 | ||
fdf0e7a0 | 3252 | /* notify_end_of_packet() logs errors */ |
e98a2d6e PP |
3253 | notify_end_of_packet(notit, notification); |
3254 | if (!*notification) { | |
3255 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
3256 | } | |
3257 | goto end; | |
3258 | default: | |
3259 | /* Non-emitting state: continue */ | |
3260 | break; | |
3261 | } | |
3262 | } | |
3263 | ||
3264 | end: | |
3265 | return status; | |
3266 | } | |
87187cbf PP |
3267 | |
3268 | BT_HIDDEN | |
3269 | enum bt_ctf_notif_iter_status bt_ctf_notif_iter_get_packet_header_context_fields( | |
3270 | struct bt_ctf_notif_iter *notit, | |
3271 | struct bt_ctf_field **packet_header_field, | |
3272 | struct bt_ctf_field **packet_context_field) | |
3273 | { | |
3274 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
3275 | ||
3276 | assert(notit); | |
3277 | ||
3278 | if (notit->state == STATE_EMIT_NOTIF_NEW_PACKET) { | |
3279 | /* We're already there */ | |
3280 | goto set_fields; | |
3281 | } | |
3282 | ||
3283 | while (true) { | |
3284 | status = handle_state(notit); | |
3285 | if (status == BT_CTF_NOTIF_ITER_STATUS_AGAIN) { | |
fdf0e7a0 | 3286 | BT_LOGV_STR("Medium returned BT_CTF_NOTIF_ITER_STATUS_AGAIN."); |
87187cbf PP |
3287 | goto end; |
3288 | } | |
3289 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
3290 | if (status == BT_CTF_NOTIF_ITER_STATUS_EOF) { | |
fdf0e7a0 | 3291 | BT_LOGV_STR("Medium returned BT_CTF_NOTIF_ITER_STATUS_EOF."); |
87187cbf | 3292 | } else { |
fdf0e7a0 PP |
3293 | BT_LOGW("Cannot handle state: " |
3294 | "notit-addr=%p, state=%s", | |
3295 | notit, state_string(notit->state)); | |
87187cbf PP |
3296 | } |
3297 | goto end; | |
3298 | } | |
3299 | ||
3300 | switch (notit->state) { | |
3301 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
3302 | /* | |
3303 | * Packet header and context fields are | |
3304 | * potentially decoded (or they don't exist). | |
3305 | */ | |
3306 | goto set_fields; | |
3307 | case STATE_INIT: | |
3308 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
3309 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
3310 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
3311 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
3312 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
3313 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
3314 | /* Non-emitting state: continue */ | |
3315 | break; | |
3316 | default: | |
3317 | /* | |
3318 | * We should never get past the | |
3319 | * STATE_EMIT_NOTIF_NEW_PACKET state. | |
3320 | */ | |
fdf0e7a0 PP |
3321 | BT_LOGF("Unexpected state: notit-addr=%p, state=%s", |
3322 | notit, state_string(notit->state)); | |
0fbb9a9f | 3323 | abort(); |
87187cbf PP |
3324 | } |
3325 | } | |
3326 | ||
3327 | set_fields: | |
3328 | if (packet_header_field) { | |
3329 | *packet_header_field = bt_get(notit->dscopes.trace_packet_header); | |
3330 | } | |
3331 | ||
3332 | if (packet_context_field) { | |
3333 | *packet_context_field = bt_get(notit->dscopes.stream_packet_context); | |
3334 | } | |
3335 | ||
3336 | end: | |
3337 | return status; | |
3338 | } | |
55fa6491 PP |
3339 | |
3340 | BT_HIDDEN | |
3341 | void bt_ctf_notif_iter_set_medops_data(struct bt_ctf_notif_iter *notit, | |
3342 | void *medops_data) | |
3343 | { | |
3344 | assert(notit); | |
3345 | notit->medium.data = medops_data; | |
3346 | } |