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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 | ||
af87daef 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; | |
214 | } buf; | |
215 | ||
216 | /* Binary type reader */ | |
217 | struct bt_ctf_btr *btr; | |
218 | ||
2cf1d51e | 219 | /* Current medium data */ |
e98a2d6e PP |
220 | struct { |
221 | struct bt_ctf_notif_iter_medium_ops medops; | |
222 | size_t max_request_sz; | |
223 | void *data; | |
224 | } medium; | |
225 | ||
226 | /* Current packet size (bits) (-1 if unknown) */ | |
e7a4393b | 227 | int64_t cur_packet_size; |
e98a2d6e PP |
228 | |
229 | /* Current content size (bits) (-1 if unknown) */ | |
e7a4393b | 230 | int64_t cur_content_size; |
c44c3e70 | 231 | |
ac0c6bdd | 232 | /* bt_ctf_clock_class to uint64_t. */ |
c44c3e70 | 233 | GHashTable *clock_states; |
5f870343 JG |
234 | |
235 | /* | |
236 | * Cache of the trace-constant field paths (event header type) | |
237 | * associated to the current trace. | |
238 | */ | |
239 | struct trace_field_path_cache trace_field_path_cache; | |
240 | ||
241 | /* | |
242 | * Field path cache associated with the current stream class. | |
243 | * Ownership of this structure belongs to the field_path_caches HT. | |
244 | */ | |
245 | struct stream_class_field_path_cache *cur_sc_field_path_cache; | |
246 | ||
247 | /* bt_ctf_stream_class to struct stream_class_field_path_cache. */ | |
248 | GHashTable *sc_field_path_caches; | |
e98a2d6e PP |
249 | }; |
250 | ||
fdf0e7a0 PP |
251 | static inline |
252 | const char *state_string(enum state state) | |
253 | { | |
254 | switch (state) { | |
255 | case STATE_INIT: | |
256 | return "STATE_INIT"; | |
257 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
258 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN"; | |
259 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
260 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE"; | |
261 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
262 | return "STATE_AFTER_TRACE_PACKET_HEADER"; | |
263 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
264 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN"; | |
265 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
266 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE"; | |
267 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
268 | return "STATE_AFTER_STREAM_PACKET_CONTEXT"; | |
269 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
270 | return "STATE_EMIT_NOTIF_NEW_PACKET"; | |
271 | case STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN: | |
272 | return "STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN"; | |
273 | case STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE: | |
274 | return "STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE"; | |
275 | case STATE_AFTER_STREAM_EVENT_HEADER: | |
276 | return "STATE_AFTER_STREAM_EVENT_HEADER"; | |
277 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN: | |
278 | return "STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN"; | |
279 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE: | |
280 | return "STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE"; | |
281 | case STATE_DSCOPE_EVENT_CONTEXT_BEGIN: | |
282 | return "STATE_DSCOPE_EVENT_CONTEXT_BEGIN"; | |
283 | case STATE_DSCOPE_EVENT_CONTEXT_CONTINUE: | |
284 | return "STATE_DSCOPE_EVENT_CONTEXT_CONTINUE"; | |
285 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
286 | return "STATE_DSCOPE_EVENT_PAYLOAD_BEGIN"; | |
287 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
288 | return "STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE"; | |
289 | case STATE_EMIT_NOTIF_EVENT: | |
290 | return "STATE_EMIT_NOTIF_EVENT"; | |
291 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
292 | return "STATE_EMIT_NOTIF_END_OF_PACKET"; | |
293 | case STATE_SKIP_PACKET_PADDING: | |
294 | return "STATE_SKIP_PACKET_PADDING"; | |
295 | default: | |
296 | return "(unknown)"; | |
297 | } | |
298 | } | |
299 | ||
2cf1d51e JG |
300 | static |
301 | int bt_ctf_notif_iter_switch_packet(struct bt_ctf_notif_iter *notit); | |
302 | ||
5f870343 JG |
303 | static |
304 | enum bt_ctf_btr_status btr_timestamp_end_cb(void *value, | |
305 | struct bt_ctf_field_type *type, void *data); | |
306 | ||
e98a2d6e PP |
307 | static |
308 | void stack_entry_free_func(gpointer data) | |
309 | { | |
310 | struct stack_entry *entry = data; | |
311 | ||
312 | bt_put(entry->base); | |
313 | g_free(entry); | |
314 | } | |
315 | ||
316 | static | |
317 | struct stack *stack_new(struct bt_ctf_notif_iter *notit) | |
318 | { | |
319 | struct stack *stack = NULL; | |
320 | ||
321 | stack = g_new0(struct stack, 1); | |
322 | if (!stack) { | |
fdf0e7a0 | 323 | BT_LOGE_STR("Failed to allocate one stack."); |
e98a2d6e PP |
324 | goto error; |
325 | } | |
326 | ||
327 | stack->entries = g_ptr_array_new_with_free_func(stack_entry_free_func); | |
328 | if (!stack->entries) { | |
fdf0e7a0 | 329 | BT_LOGE_STR("Failed to allocate a GPtrArray."); |
e98a2d6e PP |
330 | goto error; |
331 | } | |
332 | ||
fdf0e7a0 | 333 | BT_LOGD("Created stack: notit-addr=%p, stack-addr=%p", notit, stack); |
e98a2d6e | 334 | return stack; |
fdf0e7a0 | 335 | |
e98a2d6e PP |
336 | error: |
337 | g_free(stack); | |
e98a2d6e PP |
338 | return NULL; |
339 | } | |
340 | ||
341 | static | |
342 | void stack_destroy(struct stack *stack) | |
343 | { | |
344 | assert(stack); | |
fdf0e7a0 | 345 | BT_LOGD("Destroying stack: addr=%p", stack); |
e98a2d6e PP |
346 | g_ptr_array_free(stack->entries, TRUE); |
347 | g_free(stack); | |
348 | } | |
349 | ||
350 | static | |
351 | int stack_push(struct stack *stack, struct bt_ctf_field *base) | |
352 | { | |
353 | int ret = 0; | |
354 | struct stack_entry *entry; | |
e98a2d6e PP |
355 | |
356 | assert(stack); | |
357 | assert(base); | |
fdf0e7a0 PP |
358 | BT_LOGV("Pushing base field on stack: stack-addr=%p, " |
359 | "stack-size-before=%u, stack-size-after=%u", | |
360 | stack, stack->entries->len, stack->entries->len + 1); | |
e98a2d6e PP |
361 | entry = g_new0(struct stack_entry, 1); |
362 | if (!entry) { | |
fdf0e7a0 | 363 | BT_LOGE_STR("Failed to allocate one stack entry."); |
e98a2d6e PP |
364 | ret = -1; |
365 | goto end; | |
366 | } | |
367 | ||
368 | entry->base = bt_get(base); | |
369 | g_ptr_array_add(stack->entries, entry); | |
370 | ||
371 | end: | |
372 | return ret; | |
373 | } | |
374 | ||
375 | static inline | |
376 | unsigned int stack_size(struct stack *stack) | |
377 | { | |
378 | assert(stack); | |
379 | ||
380 | return stack->entries->len; | |
381 | } | |
382 | ||
383 | static | |
384 | void stack_pop(struct stack *stack) | |
385 | { | |
386 | assert(stack); | |
387 | assert(stack_size(stack)); | |
fdf0e7a0 PP |
388 | BT_LOGV("Popping from stack: " |
389 | "stack-addr=%p, stack-size-before=%u, stack-size-after=%u", | |
390 | stack, stack->entries->len, stack->entries->len - 1); | |
e98a2d6e PP |
391 | g_ptr_array_remove_index(stack->entries, stack->entries->len - 1); |
392 | } | |
393 | ||
394 | static inline | |
395 | struct stack_entry *stack_top(struct stack *stack) | |
396 | { | |
397 | assert(stack); | |
398 | assert(stack_size(stack)); | |
399 | ||
400 | return g_ptr_array_index(stack->entries, stack->entries->len - 1); | |
401 | } | |
402 | ||
403 | static inline | |
404 | bool stack_empty(struct stack *stack) | |
405 | { | |
406 | return stack_size(stack) == 0; | |
407 | } | |
408 | ||
409 | static | |
410 | void stack_clear(struct stack *stack) | |
411 | { | |
412 | assert(stack); | |
413 | ||
414 | if (!stack_empty(stack)) { | |
fdf0e7a0 PP |
415 | BT_LOGV("Clearing stack: stack-addr=%p, stack-size=%u", |
416 | stack, stack->entries->len); | |
e98a2d6e PP |
417 | g_ptr_array_remove_range(stack->entries, 0, stack_size(stack)); |
418 | } | |
419 | ||
420 | assert(stack_empty(stack)); | |
421 | } | |
422 | ||
423 | static inline | |
424 | enum bt_ctf_notif_iter_status notif_iter_status_from_m_status( | |
425 | enum bt_ctf_notif_iter_medium_status m_status) | |
426 | { | |
dc77b521 | 427 | return (int) m_status; |
e98a2d6e PP |
428 | } |
429 | ||
430 | static inline | |
431 | size_t buf_size_bits(struct bt_ctf_notif_iter *notit) | |
432 | { | |
fdf0e7a0 | 433 | return notit->buf.sz * 8; |
e98a2d6e PP |
434 | } |
435 | ||
436 | static inline | |
437 | size_t buf_available_bits(struct bt_ctf_notif_iter *notit) | |
438 | { | |
439 | return buf_size_bits(notit) - notit->buf.at; | |
440 | } | |
441 | ||
442 | static inline | |
443 | size_t packet_at(struct bt_ctf_notif_iter *notit) | |
444 | { | |
445 | return notit->buf.packet_offset + notit->buf.at; | |
446 | } | |
447 | ||
e98a2d6e PP |
448 | static inline |
449 | void buf_consume_bits(struct bt_ctf_notif_iter *notit, size_t incr) | |
450 | { | |
fdf0e7a0 PP |
451 | BT_LOGV("Advancing cursor: notit-addr=%p, cur-before=%zu, cur-after=%zu", |
452 | notit, notit->buf.at, notit->buf.at + incr); | |
e98a2d6e PP |
453 | notit->buf.at += incr; |
454 | } | |
455 | ||
e98a2d6e | 456 | static |
2cf1d51e JG |
457 | enum bt_ctf_notif_iter_status request_medium_bytes( |
458 | struct bt_ctf_notif_iter *notit) | |
e98a2d6e | 459 | { |
fdf0e7a0 PP |
460 | uint8_t *buffer_addr = NULL; |
461 | size_t buffer_sz = 0; | |
e98a2d6e PP |
462 | enum bt_ctf_notif_iter_medium_status m_status; |
463 | ||
fdf0e7a0 PP |
464 | BT_LOGV("Calling user function (request bytes): notit-addr=%p, " |
465 | "request-size=%zu", notit, notit->medium.max_request_sz); | |
e98a2d6e PP |
466 | m_status = notit->medium.medops.request_bytes( |
467 | notit->medium.max_request_sz, &buffer_addr, | |
468 | &buffer_sz, notit->medium.data); | |
fdf0e7a0 PP |
469 | BT_LOGV("User function returned: status=%s, buf-addr=%p, buf-size=%zu", |
470 | bt_ctf_notif_iter_medium_status_string(m_status), | |
471 | buffer_addr, buffer_sz); | |
e98a2d6e PP |
472 | if (m_status == BT_CTF_NOTIF_ITER_MEDIUM_STATUS_OK) { |
473 | assert(buffer_sz != 0); | |
474 | ||
475 | /* New packet offset is old one + old size (in bits) */ | |
476 | notit->buf.packet_offset += buf_size_bits(notit); | |
477 | ||
478 | /* Restart at the beginning of the new medium buffer */ | |
479 | notit->buf.at = 0; | |
480 | ||
481 | /* New medium buffer size */ | |
482 | notit->buf.sz = buffer_sz; | |
483 | ||
484 | /* New medium buffer address */ | |
485 | notit->buf.addr = buffer_addr; | |
fdf0e7a0 PP |
486 | |
487 | BT_LOGV("User function returned new bytes: " | |
488 | "packet-offset=%zu, cur=%zu, size=%zu, addr=%p", | |
489 | notit->buf.packet_offset, notit->buf.at, | |
490 | notit->buf.sz, notit->buf.addr); | |
491 | BT_LOGV_MEM(buffer_addr, buffer_sz, "Returned bytes at %p:", | |
492 | buffer_addr); | |
0684124b PP |
493 | } else if (m_status == BT_CTF_NOTIF_ITER_MEDIUM_STATUS_EOF) { |
494 | struct bt_ctf_field_type *eh_ft = NULL; | |
495 | struct bt_ctf_field_type *sec_ft = NULL; | |
496 | struct bt_ctf_field_type *ec_ft = NULL; | |
497 | ||
498 | /* | |
499 | * User returned end of stream: validate that we're not | |
500 | * in the middle of a packet header, packet context, or | |
501 | * event. | |
502 | */ | |
503 | if (notit->state == STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN) { | |
504 | /* Beginning of packet: always valid */ | |
505 | goto good_state; | |
506 | } | |
507 | ||
508 | if (!notit->meta.stream_class) { | |
509 | goto bad_state; | |
510 | } | |
511 | ||
512 | eh_ft = bt_ctf_stream_class_get_event_header_type( | |
513 | notit->meta.stream_class); | |
514 | sec_ft = bt_ctf_stream_class_get_event_context_type( | |
515 | notit->meta.stream_class); | |
516 | ||
517 | if (notit->state == STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN) { | |
518 | /* | |
519 | * Beginning of event's header is only valid if | |
520 | * the packet is not supposed to have a specific | |
521 | * size (whole packet sequence has in fact only | |
522 | * one packet). | |
523 | */ | |
524 | if (notit->cur_packet_size == -1) { | |
525 | goto good_state; | |
526 | } | |
527 | } | |
528 | ||
529 | if (notit->state == STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN) { | |
530 | /* | |
531 | * Beginning of event's stream event context is | |
532 | * only valid if the packet is not supposed to | |
533 | * have a specific size (whole packet sequence | |
534 | * has in fact only one packet), and there's no | |
535 | * event header. | |
536 | */ | |
537 | if (notit->cur_packet_size == -1 && !eh_ft) { | |
538 | goto good_state; | |
539 | } | |
540 | } | |
541 | ||
542 | if (!notit->meta.event_class) { | |
543 | goto bad_state; | |
544 | } | |
545 | ||
546 | ec_ft = bt_ctf_event_class_get_context_type( | |
547 | notit->meta.event_class); | |
548 | ||
549 | if (notit->state == STATE_DSCOPE_EVENT_CONTEXT_BEGIN) { | |
550 | /* | |
551 | * Beginning of event's context is only valid if | |
552 | * the packet is not supposed to have a specific | |
553 | * size (whole packet sequence has in fact only | |
554 | * one packet), and there's no event header and | |
555 | * no stream event context. | |
556 | */ | |
557 | if (notit->cur_packet_size == -1 && !eh_ft && !sec_ft) { | |
558 | goto good_state; | |
559 | } | |
560 | } | |
561 | ||
562 | if (notit->state == STATE_DSCOPE_EVENT_PAYLOAD_BEGIN) { | |
563 | /* | |
564 | * Beginning of event's context is only valid if | |
565 | * the packet is not supposed to have a specific | |
566 | * size (whole packet sequence has in fact only | |
567 | * one packet), and there's no event header, no | |
568 | * stream event context, and no event context. | |
569 | */ | |
570 | if (notit->cur_packet_size == -1 && !eh_ft && !sec_ft && | |
571 | !ec_ft) { | |
572 | goto good_state; | |
573 | } | |
574 | } | |
575 | ||
576 | bad_state: | |
577 | /* All other states are invalid */ | |
578 | BT_LOGW("User function returned %s, but notification iterator is in an unexpected state: " | |
579 | "state=%s", | |
580 | bt_ctf_notif_iter_medium_status_string(m_status), | |
581 | state_string(notit->state)); | |
582 | m_status = BT_CTF_NOTIF_ITER_MEDIUM_STATUS_ERROR; | |
583 | ||
584 | good_state: | |
585 | bt_put(eh_ft); | |
586 | bt_put(sec_ft); | |
587 | bt_put(ec_ft); | |
fdf0e7a0 PP |
588 | } else if (m_status < 0) { |
589 | BT_LOGW("User function failed: status=%s", | |
590 | bt_ctf_notif_iter_medium_status_string(m_status)); | |
e98a2d6e PP |
591 | } |
592 | ||
593 | return notif_iter_status_from_m_status(m_status); | |
594 | } | |
595 | ||
596 | static inline | |
597 | enum bt_ctf_notif_iter_status buf_ensure_available_bits( | |
598 | struct bt_ctf_notif_iter *notit) | |
599 | { | |
600 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
601 | ||
602 | if (buf_available_bits(notit) == 0) { | |
603 | /* | |
604 | * This _cannot_ return BT_CTF_NOTIF_ITER_STATUS_OK | |
605 | * _and_ no bits. | |
606 | */ | |
607 | status = request_medium_bytes(notit); | |
608 | } | |
609 | ||
610 | return status; | |
611 | } | |
612 | ||
613 | static | |
614 | enum bt_ctf_notif_iter_status read_dscope_begin_state( | |
615 | struct bt_ctf_notif_iter *notit, | |
616 | struct bt_ctf_field_type *dscope_field_type, | |
617 | enum state done_state, enum state continue_state, | |
618 | struct bt_ctf_field **dscope_field) | |
619 | { | |
620 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
621 | enum bt_ctf_btr_status btr_status; | |
622 | size_t consumed_bits; | |
623 | ||
624 | status = buf_ensure_available_bits(notit); | |
625 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
fdf0e7a0 PP |
626 | if (status < 0) { |
627 | BT_LOGW("Cannot ensure that buffer has at least one byte: " | |
628 | "notif-addr=%p, status=%s", | |
629 | notit, bt_ctf_notif_iter_status_string(status)); | |
630 | } else { | |
631 | BT_LOGV("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 | } | |
635 | ||
e98a2d6e PP |
636 | goto end; |
637 | } | |
638 | ||
639 | bt_put(*dscope_field); | |
640 | notit->cur_dscope_field = dscope_field; | |
fdf0e7a0 PP |
641 | BT_LOGV("Starting BTR: notit-addr=%p, btr-addr=%p, ft-addr=%p", |
642 | notit, notit->btr, dscope_field_type); | |
e98a2d6e PP |
643 | consumed_bits = bt_ctf_btr_start(notit->btr, dscope_field_type, |
644 | notit->buf.addr, notit->buf.at, packet_at(notit), | |
645 | notit->buf.sz, &btr_status); | |
fdf0e7a0 | 646 | BT_LOGV("BTR consumed bits: size=%zu", consumed_bits); |
e98a2d6e PP |
647 | |
648 | switch (btr_status) { | |
649 | case BT_CTF_BTR_STATUS_OK: | |
650 | /* type was read completely */ | |
fdf0e7a0 | 651 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
652 | notit->state = done_state; |
653 | break; | |
654 | case BT_CTF_BTR_STATUS_EOF: | |
fdf0e7a0 | 655 | BT_LOGV_STR("BTR needs more data to decode field completely."); |
e98a2d6e PP |
656 | notit->state = continue_state; |
657 | break; | |
658 | default: | |
fdf0e7a0 PP |
659 | BT_LOGW("BTR failed to start: notit-addr=%p, btr-addr=%p, " |
660 | "status=%s", notit, notit->btr, | |
661 | bt_ctf_btr_status_string(btr_status)); | |
e98a2d6e PP |
662 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
663 | goto end; | |
664 | } | |
665 | ||
666 | /* Consume bits now since we know we're not in an error state */ | |
667 | buf_consume_bits(notit, consumed_bits); | |
668 | ||
669 | end: | |
670 | return status; | |
671 | } | |
672 | ||
673 | static | |
674 | enum bt_ctf_notif_iter_status read_dscope_continue_state( | |
675 | struct bt_ctf_notif_iter *notit, enum state done_state) | |
676 | { | |
677 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
678 | enum bt_ctf_btr_status btr_status; | |
679 | size_t consumed_bits; | |
680 | ||
681 | status = buf_ensure_available_bits(notit); | |
682 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
fdf0e7a0 PP |
683 | if (status < 0) { |
684 | BT_LOGW("Cannot ensure that buffer has at least one byte: " | |
685 | "notif-addr=%p, status=%s", | |
686 | notit, bt_ctf_notif_iter_status_string(status)); | |
687 | } else { | |
688 | BT_LOGV("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 | } | |
692 | ||
e98a2d6e PP |
693 | goto end; |
694 | } | |
695 | ||
fdf0e7a0 PP |
696 | BT_LOGV("Continuing BTR: notit-addr=%p, btr-addr=%p", |
697 | notit, notit->btr); | |
e98a2d6e | 698 | consumed_bits = bt_ctf_btr_continue(notit->btr, notit->buf.addr, |
fdf0e7a0 PP |
699 | notit->buf.sz, &btr_status); |
700 | BT_LOGV("BTR consumed bits: size=%zu", consumed_bits); | |
e98a2d6e PP |
701 | |
702 | switch (btr_status) { | |
703 | case BT_CTF_BTR_STATUS_OK: | |
78586d8a | 704 | /* Type was read completely. */ |
fdf0e7a0 | 705 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
706 | notit->state = done_state; |
707 | break; | |
708 | case BT_CTF_BTR_STATUS_EOF: | |
78586d8a | 709 | /* Stay in this continue state. */ |
fdf0e7a0 | 710 | BT_LOGV_STR("BTR needs more data to decode field completely."); |
e98a2d6e PP |
711 | break; |
712 | default: | |
fdf0e7a0 PP |
713 | BT_LOGW("BTR failed to continue: notit-addr=%p, btr-addr=%p, " |
714 | "status=%s", notit, notit->btr, | |
715 | bt_ctf_btr_status_string(btr_status)); | |
e98a2d6e PP |
716 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
717 | goto end; | |
718 | } | |
719 | ||
78586d8a | 720 | /* Consume bits now since we know we're not in an error state. */ |
e98a2d6e | 721 | buf_consume_bits(notit, consumed_bits); |
e98a2d6e PP |
722 | end: |
723 | return status; | |
724 | } | |
725 | ||
726 | static | |
727 | void put_event_dscopes(struct bt_ctf_notif_iter *notit) | |
728 | { | |
fdf0e7a0 | 729 | BT_LOGV_STR("Putting event header field."); |
e98a2d6e | 730 | BT_PUT(notit->dscopes.stream_event_header); |
fdf0e7a0 | 731 | BT_LOGV_STR("Putting stream event context field."); |
e98a2d6e | 732 | BT_PUT(notit->dscopes.stream_event_context); |
fdf0e7a0 | 733 | BT_LOGV_STR("Putting event context field."); |
e98a2d6e | 734 | BT_PUT(notit->dscopes.event_context); |
fdf0e7a0 | 735 | BT_LOGV_STR("Putting event payload field."); |
e98a2d6e PP |
736 | BT_PUT(notit->dscopes.event_payload); |
737 | } | |
738 | ||
739 | static | |
740 | void put_all_dscopes(struct bt_ctf_notif_iter *notit) | |
741 | { | |
fdf0e7a0 | 742 | BT_LOGV_STR("Putting packet header field."); |
e98a2d6e | 743 | BT_PUT(notit->dscopes.trace_packet_header); |
fdf0e7a0 | 744 | BT_LOGV_STR("Putting packet context field."); |
e98a2d6e PP |
745 | BT_PUT(notit->dscopes.stream_packet_context); |
746 | put_event_dscopes(notit); | |
747 | } | |
748 | ||
749 | static | |
750 | enum bt_ctf_notif_iter_status read_packet_header_begin_state( | |
751 | struct bt_ctf_notif_iter *notit) | |
752 | { | |
2cf1d51e JG |
753 | struct bt_ctf_field_type *packet_header_type = NULL; |
754 | enum bt_ctf_notif_iter_status ret = BT_CTF_NOTIF_ITER_STATUS_OK; | |
e98a2d6e | 755 | |
2cf1d51e | 756 | if (bt_ctf_notif_iter_switch_packet(notit)) { |
fdf0e7a0 | 757 | BT_LOGW("Cannot switch packet: notit-addr=%p", notit); |
2cf1d51e JG |
758 | ret = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
759 | goto end; | |
760 | } | |
e98a2d6e | 761 | |
2cf1d51e | 762 | /* Packet header type is common to the whole trace. */ |
e98a2d6e | 763 | packet_header_type = bt_ctf_trace_get_packet_header_type( |
78586d8a | 764 | notit->meta.trace); |
e98a2d6e | 765 | if (!packet_header_type) { |
835b2d10 | 766 | notit->state = STATE_AFTER_TRACE_PACKET_HEADER; |
e98a2d6e PP |
767 | goto end; |
768 | } | |
769 | ||
fdf0e7a0 PP |
770 | BT_LOGV("Decoding packet header field:" |
771 | "notit-addr=%p, trace-addr=%p, trace-name=\"%s\", ft-addr=%p", | |
772 | notit, notit->meta.trace, | |
773 | bt_ctf_trace_get_name(notit->meta.trace), packet_header_type); | |
2cf1d51e | 774 | ret = read_dscope_begin_state(notit, packet_header_type, |
fdf0e7a0 PP |
775 | STATE_AFTER_TRACE_PACKET_HEADER, |
776 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
777 | ¬it->dscopes.trace_packet_header); | |
778 | if (ret < 0) { | |
779 | BT_LOGW("Cannot decode packet header field: " | |
780 | "notit-addr=%p, trace-addr=%p, " | |
781 | "trace-name=\"%s\", ft-addr=%p", | |
782 | notit, notit->meta.trace, | |
783 | bt_ctf_trace_get_name(notit->meta.trace), | |
784 | packet_header_type); | |
785 | } | |
e98a2d6e PP |
786 | end: |
787 | BT_PUT(packet_header_type); | |
2cf1d51e | 788 | return ret; |
e98a2d6e PP |
789 | } |
790 | ||
791 | static | |
792 | enum bt_ctf_notif_iter_status read_packet_header_continue_state( | |
793 | struct bt_ctf_notif_iter *notit) | |
794 | { | |
795 | return read_dscope_continue_state(notit, | |
78586d8a | 796 | STATE_AFTER_TRACE_PACKET_HEADER); |
e98a2d6e PP |
797 | } |
798 | ||
799 | static inline | |
800 | bool is_struct_type(struct bt_ctf_field_type *field_type) | |
801 | { | |
78586d8a | 802 | return bt_ctf_field_type_get_type_id(field_type) == |
1487a16a | 803 | BT_CTF_FIELD_TYPE_ID_STRUCT; |
e98a2d6e PP |
804 | } |
805 | ||
806 | static inline | |
807 | bool is_variant_type(struct bt_ctf_field_type *field_type) | |
808 | { | |
78586d8a | 809 | return bt_ctf_field_type_get_type_id(field_type) == |
1487a16a | 810 | BT_CTF_FIELD_TYPE_ID_VARIANT; |
e98a2d6e PP |
811 | } |
812 | ||
5f870343 JG |
813 | static |
814 | struct stream_class_field_path_cache * | |
815 | create_stream_class_field_path_cache_entry( | |
816 | struct bt_ctf_notif_iter *notit, | |
817 | struct bt_ctf_stream_class *stream_class) | |
818 | { | |
819 | int v = -1; | |
820 | int id = -1; | |
821 | int timestamp_end = -1; | |
822 | int packet_size = -1; | |
823 | int content_size = -1; | |
824 | struct stream_class_field_path_cache *cache_entry = g_new0( | |
825 | struct stream_class_field_path_cache, 1); | |
826 | struct bt_ctf_field_type *event_header = NULL, *packet_context = NULL; | |
827 | ||
828 | if (!cache_entry) { | |
fdf0e7a0 | 829 | BT_LOGE_STR("Failed to allocate one stream class field path cache."); |
5f870343 JG |
830 | goto end; |
831 | } | |
832 | ||
833 | event_header = bt_ctf_stream_class_get_event_header_type(stream_class); | |
834 | if (event_header && bt_ctf_field_type_is_structure(event_header)) { | |
835 | int i, count; | |
836 | ||
837 | count = bt_ctf_field_type_structure_get_field_count( | |
fdf0e7a0 PP |
838 | event_header); |
839 | assert(count >= 0); | |
840 | ||
5f870343 JG |
841 | for (i = 0; i < count; i++) { |
842 | int ret; | |
843 | const char *name; | |
844 | ||
845 | ret = bt_ctf_field_type_structure_get_field( | |
846 | event_header, &name, NULL, i); | |
847 | if (ret) { | |
fdf0e7a0 PP |
848 | BT_LOGE("Cannot get event header structure field type's field: " |
849 | "notit-addr=%p, stream-class-addr=%p, " | |
850 | "stream-class-name=\"%s\", " | |
851 | "stream-class-id=%" PRId64 ", " | |
852 | "ft-addr=%p, index=%d", | |
853 | notit, stream_class, | |
854 | bt_ctf_stream_class_get_name(stream_class), | |
855 | bt_ctf_stream_class_get_id(stream_class), | |
856 | event_header, i); | |
5f870343 JG |
857 | goto error; |
858 | } | |
859 | ||
860 | if (v != -1 && id != -1) { | |
861 | break; | |
862 | } | |
fdf0e7a0 PP |
863 | |
864 | if (v == -1 && strcmp(name, "v") == 0) { | |
5f870343 JG |
865 | v = i; |
866 | } else if (id == -1 && !strcmp(name, "id")) { | |
867 | id = i; | |
868 | } | |
869 | } | |
870 | } | |
871 | ||
872 | packet_context = bt_ctf_stream_class_get_packet_context_type( | |
873 | stream_class); | |
874 | if (packet_context && bt_ctf_field_type_is_structure(packet_context)) { | |
875 | int i, count; | |
876 | ||
877 | count = bt_ctf_field_type_structure_get_field_count( | |
fdf0e7a0 PP |
878 | packet_context); |
879 | assert(count >= 0); | |
880 | ||
5f870343 JG |
881 | for (i = 0; i < count; i++) { |
882 | int ret; | |
883 | const char *name; | |
884 | struct bt_ctf_field_type *field_type; | |
885 | ||
886 | if (timestamp_end != -1 && packet_size != -1 && | |
887 | content_size != -1) { | |
888 | break; | |
889 | } | |
890 | ||
891 | ret = bt_ctf_field_type_structure_get_field( | |
892 | packet_context, &name, &field_type, i); | |
893 | if (ret) { | |
fdf0e7a0 PP |
894 | BT_LOGE("Cannot get packet context structure field type's field: " |
895 | "notit-addr=%p, stream-class-addr=%p, " | |
896 | "stream-class-name=\"%s\", " | |
897 | "stream-class-id=%" PRId64 ", " | |
898 | "ft-addr=%p, index=%d", | |
899 | notit, stream_class, | |
900 | bt_ctf_stream_class_get_name(stream_class), | |
901 | bt_ctf_stream_class_get_id(stream_class), | |
902 | event_header, i); | |
5f870343 JG |
903 | goto error; |
904 | } | |
905 | ||
906 | if (timestamp_end == -1 && | |
fdf0e7a0 | 907 | strcmp(name, "timestamp_end") == 0) { |
5f870343 JG |
908 | struct field_cb_override *override = g_new0( |
909 | struct field_cb_override, 1); | |
910 | ||
911 | if (!override) { | |
912 | BT_PUT(field_type); | |
913 | goto error; | |
914 | } | |
915 | ||
916 | override->func = btr_timestamp_end_cb; | |
917 | override->data = notit; | |
5f870343 | 918 | g_hash_table_insert(notit->field_overrides, |
fdf0e7a0 | 919 | bt_get(field_type), override); |
5f870343 JG |
920 | timestamp_end = i; |
921 | } else if (packet_size == -1 && | |
922 | !strcmp(name, "packet_size")) { | |
923 | packet_size = i; | |
924 | } else if (content_size == -1 && | |
925 | !strcmp(name, "content_size")) { | |
926 | content_size = i; | |
927 | } | |
928 | BT_PUT(field_type); | |
929 | } | |
930 | } | |
931 | ||
932 | cache_entry->v = v; | |
933 | cache_entry->id = id; | |
934 | cache_entry->timestamp_end = timestamp_end; | |
935 | cache_entry->packet_size = packet_size; | |
936 | cache_entry->content_size = content_size; | |
937 | end: | |
938 | BT_PUT(event_header); | |
939 | BT_PUT(packet_context); | |
940 | return cache_entry; | |
941 | error: | |
942 | g_free(cache_entry); | |
943 | cache_entry = NULL; | |
944 | goto end; | |
945 | } | |
946 | ||
947 | static | |
948 | struct stream_class_field_path_cache *get_stream_class_field_path_cache( | |
949 | struct bt_ctf_notif_iter *notit, | |
950 | struct bt_ctf_stream_class *stream_class) | |
951 | { | |
952 | bool cache_entry_found; | |
953 | struct stream_class_field_path_cache *cache_entry; | |
954 | ||
955 | cache_entry_found = g_hash_table_lookup_extended( | |
956 | notit->sc_field_path_caches, | |
957 | stream_class, NULL, (gpointer) &cache_entry); | |
958 | if (unlikely(!cache_entry_found)) { | |
959 | cache_entry = create_stream_class_field_path_cache_entry(notit, | |
fdf0e7a0 | 960 | stream_class); |
5f870343 | 961 | g_hash_table_insert(notit->sc_field_path_caches, |
fdf0e7a0 | 962 | bt_get(stream_class), (gpointer) cache_entry); |
5f870343 JG |
963 | } |
964 | ||
965 | return cache_entry; | |
966 | } | |
967 | ||
e98a2d6e | 968 | static inline |
835b2d10 JG |
969 | enum bt_ctf_notif_iter_status set_current_stream_class( |
970 | struct bt_ctf_notif_iter *notit) | |
e98a2d6e PP |
971 | { |
972 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
5f870343 | 973 | struct bt_ctf_field_type *packet_header_type = NULL; |
e98a2d6e | 974 | struct bt_ctf_field_type *stream_id_field_type = NULL; |
115de887 | 975 | struct bt_ctf_stream_class *new_stream_class = NULL; |
e98a2d6e PP |
976 | uint64_t stream_id; |
977 | ||
5f870343 JG |
978 | /* Clear the current stream class field path cache. */ |
979 | notit->cur_sc_field_path_cache = NULL; | |
980 | ||
e98a2d6e PP |
981 | /* Is there any "stream_id" field in the packet header? */ |
982 | packet_header_type = bt_ctf_trace_get_packet_header_type( | |
fdf0e7a0 | 983 | notit->meta.trace); |
e98a2d6e | 984 | if (!packet_header_type) { |
fdf0e7a0 PP |
985 | /* |
986 | * No packet header, therefore no `stream_id` field, | |
987 | * therefore only one stream class. | |
988 | */ | |
989 | goto single_stream_class; | |
e98a2d6e PP |
990 | } |
991 | ||
992 | assert(is_struct_type(packet_header_type)); | |
993 | ||
994 | // TODO: optimalize! | |
995 | stream_id_field_type = | |
fdf0e7a0 PP |
996 | bt_ctf_field_type_structure_get_field_type_by_name( |
997 | packet_header_type, "stream_id"); | |
e98a2d6e PP |
998 | if (stream_id_field_type) { |
999 | /* Find appropriate stream class using current stream ID */ | |
e98a2d6e | 1000 | int ret; |
5f870343 | 1001 | struct bt_ctf_field *stream_id_field = NULL; |
e98a2d6e PP |
1002 | |
1003 | assert(notit->dscopes.trace_packet_header); | |
1004 | ||
1005 | // TODO: optimalize! | |
1006 | stream_id_field = bt_ctf_field_structure_get_field( | |
78586d8a | 1007 | notit->dscopes.trace_packet_header, "stream_id"); |
e98a2d6e PP |
1008 | assert(stream_id_field); |
1009 | ret = bt_ctf_field_unsigned_integer_get_value( | |
78586d8a | 1010 | stream_id_field, &stream_id); |
e98a2d6e PP |
1011 | assert(!ret); |
1012 | BT_PUT(stream_id_field); | |
1013 | } else { | |
fdf0e7a0 | 1014 | single_stream_class: |
e98a2d6e PP |
1015 | /* Only one stream: pick the first stream class */ |
1016 | assert(bt_ctf_trace_get_stream_class_count( | |
78586d8a | 1017 | notit->meta.trace) == 1); |
e98a2d6e PP |
1018 | stream_id = 0; |
1019 | } | |
1020 | ||
fdf0e7a0 PP |
1021 | BT_LOGV("Found stream class ID to use: notit-addr=%p, " |
1022 | "stream-class-id=%" PRIu64 ", " | |
1023 | "trace-addr=%p, trace-name=\"%s\"", | |
1024 | notit, stream_id, notit->meta.trace, | |
1025 | bt_ctf_trace_get_name(notit->meta.trace)); | |
1026 | ||
115de887 | 1027 | new_stream_class = bt_ctf_trace_get_stream_class_by_id( |
fdf0e7a0 | 1028 | notit->meta.trace, stream_id); |
115de887 | 1029 | if (!new_stream_class) { |
fdf0e7a0 PP |
1030 | BT_LOGW("No stream class with ID of stream class ID to use in trace: " |
1031 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " | |
1032 | "trace-addr=%p, trace-name=\"%s\"", | |
1033 | notit, stream_id, notit->meta.trace, | |
1034 | bt_ctf_trace_get_name(notit->meta.trace)); | |
e98a2d6e PP |
1035 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1036 | goto end; | |
1037 | } | |
1038 | ||
115de887 PP |
1039 | if (notit->meta.stream_class) { |
1040 | if (new_stream_class != notit->meta.stream_class) { | |
1041 | BT_LOGW("Two packets refer to two different stream classes within the same packet sequence: " | |
1042 | "notit-addr=%p, prev-stream-class-addr=%p, " | |
1043 | "prev-stream-class-name=\"%s\", " | |
1044 | "prev-stream-class-id=%" PRId64 ", " | |
1045 | "next-stream-class-addr=%p, " | |
1046 | "next-stream-class-name=\"%s\", " | |
1047 | "next-stream-class-id=%" PRId64 ", " | |
1048 | "trace-addr=%p, trace-name=\"%s\"", | |
1049 | notit, notit->meta.stream_class, | |
1050 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1051 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1052 | new_stream_class, | |
1053 | bt_ctf_stream_class_get_name(new_stream_class), | |
1054 | bt_ctf_stream_class_get_id(new_stream_class), | |
1055 | notit->meta.trace, | |
1056 | bt_ctf_trace_get_name(notit->meta.trace)); | |
1057 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
1058 | goto end; | |
1059 | } | |
1060 | } else { | |
1061 | BT_MOVE(notit->meta.stream_class, new_stream_class); | |
1062 | } | |
1063 | ||
fdf0e7a0 PP |
1064 | BT_LOGV("Set current stream class: " |
1065 | "notit-addr=%p, stream-class-addr=%p, " | |
1066 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1067 | notit, notit->meta.stream_class, | |
1068 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1069 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
1070 | ||
5f870343 JG |
1071 | /* |
1072 | * Retrieve (or lazily create) the current stream class field path | |
1073 | * cache. | |
1074 | */ | |
1075 | notit->cur_sc_field_path_cache = get_stream_class_field_path_cache( | |
fdf0e7a0 | 1076 | notit, notit->meta.stream_class); |
5f870343 | 1077 | if (!notit->cur_sc_field_path_cache) { |
fdf0e7a0 PP |
1078 | BT_LOGW("Cannot retrieve stream class field path from cache: " |
1079 | "notit-addr=%p, stream-class-addr=%p, " | |
1080 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1081 | notit, notit->meta.stream_class, | |
1082 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1083 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
5f870343 JG |
1084 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1085 | goto end; | |
1086 | } | |
e98a2d6e PP |
1087 | end: |
1088 | BT_PUT(packet_header_type); | |
1089 | BT_PUT(stream_id_field_type); | |
115de887 | 1090 | bt_put(new_stream_class); |
e98a2d6e PP |
1091 | return status; |
1092 | } | |
1093 | ||
1094 | static | |
1095 | enum bt_ctf_notif_iter_status after_packet_header_state( | |
1096 | struct bt_ctf_notif_iter *notit) | |
1097 | { | |
1098 | enum bt_ctf_notif_iter_status status; | |
1099 | ||
1100 | status = set_current_stream_class(notit); | |
1101 | if (status == BT_CTF_NOTIF_ITER_STATUS_OK) { | |
1102 | notit->state = STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN; | |
1103 | } | |
1104 | ||
1105 | return status; | |
1106 | } | |
1107 | ||
1108 | static | |
1109 | enum bt_ctf_notif_iter_status read_packet_context_begin_state( | |
1110 | struct bt_ctf_notif_iter *notit) | |
1111 | { | |
1112 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1113 | struct bt_ctf_field_type *packet_context_type; | |
1114 | ||
1115 | assert(notit->meta.stream_class); | |
1116 | packet_context_type = bt_ctf_stream_class_get_packet_context_type( | |
fdf0e7a0 | 1117 | notit->meta.stream_class); |
e98a2d6e | 1118 | if (!packet_context_type) { |
fdf0e7a0 PP |
1119 | BT_LOGV("No packet packet context field type in stream class: continuing: " |
1120 | "notit-addr=%p, stream-class-addr=%p, " | |
1121 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1122 | notit, notit->meta.stream_class, | |
1123 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1124 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
835b2d10 | 1125 | notit->state = STATE_AFTER_STREAM_PACKET_CONTEXT; |
e98a2d6e PP |
1126 | goto end; |
1127 | } | |
1128 | ||
fdf0e7a0 PP |
1129 | BT_LOGV("Decoding packet context field: " |
1130 | "notit-addr=%p, stream-class-addr=%p, " | |
1131 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1132 | "ft-addr=%p", | |
1133 | notit, notit->meta.stream_class, | |
1134 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1135 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1136 | packet_context_type); | |
e98a2d6e | 1137 | status = read_dscope_begin_state(notit, packet_context_type, |
fdf0e7a0 PP |
1138 | STATE_AFTER_STREAM_PACKET_CONTEXT, |
1139 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
1140 | ¬it->dscopes.stream_packet_context); | |
1141 | if (status < 0) { | |
1142 | BT_LOGW("Cannot decode packet context field: " | |
1143 | "notit-addr=%p, stream-class-addr=%p, " | |
1144 | "stream-class-name=\"%s\", " | |
1145 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1146 | notit, notit->meta.stream_class, | |
1147 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1148 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1149 | packet_context_type); | |
1150 | } | |
e98a2d6e PP |
1151 | |
1152 | end: | |
1153 | BT_PUT(packet_context_type); | |
e98a2d6e PP |
1154 | return status; |
1155 | } | |
1156 | ||
1157 | static | |
1158 | enum bt_ctf_notif_iter_status read_packet_context_continue_state( | |
1159 | struct bt_ctf_notif_iter *notit) | |
1160 | { | |
1161 | return read_dscope_continue_state(notit, | |
78586d8a | 1162 | STATE_AFTER_STREAM_PACKET_CONTEXT); |
e98a2d6e PP |
1163 | } |
1164 | ||
78586d8a | 1165 | static |
e98a2d6e PP |
1166 | enum bt_ctf_notif_iter_status set_current_packet_content_sizes( |
1167 | struct bt_ctf_notif_iter *notit) | |
1168 | { | |
1169 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1170 | struct bt_ctf_field *packet_size_field = NULL; | |
1171 | struct bt_ctf_field *content_size_field = NULL; | |
1172 | uint64_t content_size = -1, packet_size = -1; | |
1173 | ||
89b08333 MD |
1174 | if (!notit->dscopes.stream_packet_context) { |
1175 | goto end; | |
1176 | } | |
e98a2d6e | 1177 | |
e98a2d6e | 1178 | packet_size_field = bt_ctf_field_structure_get_field( |
fdf0e7a0 | 1179 | notit->dscopes.stream_packet_context, "packet_size"); |
e98a2d6e | 1180 | content_size_field = bt_ctf_field_structure_get_field( |
fdf0e7a0 | 1181 | notit->dscopes.stream_packet_context, "content_size"); |
e98a2d6e PP |
1182 | if (packet_size_field) { |
1183 | int ret = bt_ctf_field_unsigned_integer_get_value( | |
fdf0e7a0 | 1184 | packet_size_field, &packet_size); |
e98a2d6e | 1185 | |
fdf0e7a0 | 1186 | assert(ret == 0); |
e98a2d6e | 1187 | if (packet_size == 0) { |
fdf0e7a0 PP |
1188 | BT_LOGW("Invalid packet size: packet context field indicates packet size is zero: " |
1189 | "notit-addr=%p, packet-context-field-addr=%p", | |
1190 | notit, notit->dscopes.stream_packet_context); | |
e98a2d6e PP |
1191 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1192 | goto end; | |
1193 | } else if ((packet_size % 8) != 0) { | |
fdf0e7a0 PP |
1194 | BT_LOGW("Invalid packet size: packet context field indicates packet size is not a multiple of 8: " |
1195 | "notit-addr=%p, packet-context-field-addr=%p, " | |
1196 | "packet-size=%" PRIu64, | |
1197 | notit, notit->dscopes.stream_packet_context, | |
1198 | packet_size); | |
e98a2d6e PP |
1199 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1200 | goto end; | |
1201 | } | |
1202 | } | |
78586d8a | 1203 | |
e98a2d6e PP |
1204 | if (content_size_field) { |
1205 | int ret = bt_ctf_field_unsigned_integer_get_value( | |
1206 | content_size_field, &content_size); | |
78586d8a | 1207 | |
fdf0e7a0 | 1208 | assert(ret == 0); |
e98a2d6e PP |
1209 | } else { |
1210 | content_size = packet_size; | |
1211 | } | |
1212 | ||
fdf0e7a0 PP |
1213 | if (content_size > packet_size) { |
1214 | BT_LOGW("Invalid packet or content size: packet context field indicates content size is greater than packet size: " | |
1215 | "notit-addr=%p, packet-context-field-addr=%p, " | |
1216 | "packet-size=%" PRIu64 ", content-size=%" PRIu64, | |
1217 | notit, notit->dscopes.stream_packet_context, | |
1218 | packet_size, content_size); | |
1219 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
1220 | goto end; | |
1221 | } | |
1222 | ||
e98a2d6e PP |
1223 | notit->cur_packet_size = packet_size; |
1224 | notit->cur_content_size = content_size; | |
fdf0e7a0 PP |
1225 | BT_LOGV("Set current packet and content sizes: " |
1226 | "notit-addr=%p, packet-size=%" PRIu64 ", content-size=%" PRIu64, | |
1227 | notit, packet_size, content_size); | |
e98a2d6e PP |
1228 | end: |
1229 | BT_PUT(packet_size_field); | |
1230 | BT_PUT(content_size_field); | |
e98a2d6e PP |
1231 | return status; |
1232 | } | |
1233 | ||
1234 | static | |
1235 | enum bt_ctf_notif_iter_status after_packet_context_state( | |
1236 | struct bt_ctf_notif_iter *notit) | |
1237 | { | |
1238 | enum bt_ctf_notif_iter_status status; | |
1239 | ||
1240 | status = set_current_packet_content_sizes(notit); | |
1241 | if (status == BT_CTF_NOTIF_ITER_STATUS_OK) { | |
1242 | notit->state = STATE_EMIT_NOTIF_NEW_PACKET; | |
1243 | } | |
1244 | ||
1245 | return status; | |
1246 | } | |
1247 | ||
1248 | static | |
1249 | enum bt_ctf_notif_iter_status read_event_header_begin_state( | |
1250 | struct bt_ctf_notif_iter *notit) | |
1251 | { | |
1252 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1253 | struct bt_ctf_field_type *event_header_type = NULL; | |
1254 | ||
1255 | /* Check if we have some content left */ | |
1256 | if (notit->cur_content_size >= 0) { | |
1257 | if (packet_at(notit) == notit->cur_content_size) { | |
1258 | /* No more events! */ | |
fdf0e7a0 PP |
1259 | BT_LOGV("Reached end of packet: notit-addr=%p, " |
1260 | "cur=%zu", notit, packet_at(notit)); | |
e98a2d6e PP |
1261 | notit->state = STATE_EMIT_NOTIF_END_OF_PACKET; |
1262 | goto end; | |
1263 | } else if (packet_at(notit) > notit->cur_content_size) { | |
1264 | /* That's not supposed to happen */ | |
fdf0e7a0 PP |
1265 | BT_LOGV("Before decoding event header field: cursor is passed the packet's content: " |
1266 | "notit-addr=%p, content-size=%zu, " | |
1267 | "cur=%zu", notit, notit->cur_content_size, | |
1268 | packet_at(notit)); | |
e98a2d6e PP |
1269 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1270 | goto end; | |
1271 | } | |
1272 | } | |
1273 | ||
1274 | event_header_type = bt_ctf_stream_class_get_event_header_type( | |
1275 | notit->meta.stream_class); | |
1276 | if (!event_header_type) { | |
835b2d10 | 1277 | notit->state = STATE_AFTER_STREAM_EVENT_HEADER; |
e98a2d6e PP |
1278 | goto end; |
1279 | } | |
1280 | ||
1281 | put_event_dscopes(notit); | |
fdf0e7a0 PP |
1282 | BT_LOGV("Decoding event header field: " |
1283 | "notit-addr=%p, stream-class-addr=%p, " | |
1284 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1285 | "ft-addr=%p", | |
1286 | notit, notit->meta.stream_class, | |
1287 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1288 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1289 | event_header_type); | |
e98a2d6e PP |
1290 | status = read_dscope_begin_state(notit, event_header_type, |
1291 | STATE_AFTER_STREAM_EVENT_HEADER, | |
1292 | STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE, | |
1293 | ¬it->dscopes.stream_event_header); | |
fdf0e7a0 PP |
1294 | if (status < 0) { |
1295 | BT_LOGW("Cannot decode event header field: " | |
1296 | "notit-addr=%p, stream-class-addr=%p, " | |
1297 | "stream-class-name=\"%s\", " | |
1298 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1299 | notit, notit->meta.stream_class, | |
1300 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1301 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1302 | event_header_type); | |
1303 | } | |
e98a2d6e PP |
1304 | end: |
1305 | BT_PUT(event_header_type); | |
1306 | ||
1307 | return status; | |
1308 | } | |
1309 | ||
1310 | static | |
1311 | enum bt_ctf_notif_iter_status read_event_header_continue_state( | |
1312 | struct bt_ctf_notif_iter *notit) | |
1313 | { | |
1314 | return read_dscope_continue_state(notit, | |
1315 | STATE_AFTER_STREAM_EVENT_HEADER); | |
1316 | } | |
1317 | ||
1318 | static inline | |
1319 | enum bt_ctf_notif_iter_status set_current_event_class(struct bt_ctf_notif_iter *notit) | |
1320 | { | |
1321 | /* | |
1322 | * The assert() calls in this function are okay because it is | |
1323 | * assumed here that all the metadata objects have been | |
1324 | * validated for CTF correctness before decoding actual streams. | |
1325 | */ | |
1326 | ||
1327 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1328 | struct bt_ctf_field_type *event_header_type; | |
1329 | struct bt_ctf_field_type *id_field_type = NULL; | |
1330 | struct bt_ctf_field_type *v_field_type = NULL; | |
1331 | uint64_t event_id = -1ULL; | |
1332 | int ret; | |
1333 | ||
1334 | event_header_type = bt_ctf_stream_class_get_event_header_type( | |
1335 | notit->meta.stream_class); | |
1336 | if (!event_header_type) { | |
fdf0e7a0 PP |
1337 | /* |
1338 | * No event header, therefore no event class ID field, | |
1339 | * therefore only one event class. | |
1340 | */ | |
1341 | goto single_event_class; | |
e98a2d6e PP |
1342 | } |
1343 | ||
1344 | /* Is there any "id"/"v" field in the event header? */ | |
1345 | assert(is_struct_type(event_header_type)); | |
1346 | id_field_type = bt_ctf_field_type_structure_get_field_type_by_name( | |
1347 | event_header_type, "id"); | |
1348 | v_field_type = bt_ctf_field_type_structure_get_field_type_by_name( | |
1349 | event_header_type, "v"); | |
1350 | assert(notit->dscopes.stream_event_header); | |
1351 | if (v_field_type) { | |
1352 | /* | |
1353 | * _ _____ _____ | |
1354 | * | | |_ _|_ _| __ __ _ | |
1355 | * | | | | | || '_ \ / _` | | |
1356 | * | |___| | | || | | | (_| | S P E C I A L | |
1357 | * |_____|_| |_||_| |_|\__, | C A S E ™ | |
1358 | * |___/ | |
1359 | */ | |
1360 | struct bt_ctf_field *v_field = NULL; | |
1361 | struct bt_ctf_field *v_struct_field = NULL; | |
1362 | struct bt_ctf_field *v_struct_id_field = NULL; | |
1363 | ||
1364 | // TODO: optimalize! | |
1365 | v_field = bt_ctf_field_structure_get_field( | |
1366 | notit->dscopes.stream_event_header, "v"); | |
1367 | assert(v_field); | |
1368 | ||
1369 | v_struct_field = | |
1370 | bt_ctf_field_variant_get_current_field(v_field); | |
1371 | if (!v_struct_field) { | |
1372 | goto end_v_field_type; | |
1373 | } | |
1374 | ||
1375 | // TODO: optimalize! | |
1376 | v_struct_id_field = | |
1377 | bt_ctf_field_structure_get_field(v_struct_field, "id"); | |
1378 | if (!v_struct_id_field) { | |
1379 | goto end_v_field_type; | |
1380 | } | |
1381 | ||
fdf0e7a0 PP |
1382 | if (bt_ctf_field_is_integer(v_struct_id_field)) { |
1383 | ret = bt_ctf_field_unsigned_integer_get_value( | |
1384 | v_struct_id_field, &event_id); | |
1385 | if (ret) { | |
1386 | BT_LOGV("Cannot get value of unsigned integer field (`id`): continuing: " | |
1387 | "notit=%p, field-addr=%p", | |
1388 | notit, v_struct_id_field); | |
1389 | event_id = -1ULL; | |
1390 | } | |
e98a2d6e PP |
1391 | } |
1392 | ||
1393 | end_v_field_type: | |
1394 | BT_PUT(v_field); | |
1395 | BT_PUT(v_struct_field); | |
1396 | BT_PUT(v_struct_id_field); | |
1397 | } | |
1398 | ||
1399 | if (id_field_type && event_id == -1ULL) { | |
1400 | /* Check "id" field */ | |
1401 | struct bt_ctf_field *id_field = NULL; | |
fdf0e7a0 | 1402 | int ret = 0; |
e98a2d6e PP |
1403 | |
1404 | // TODO: optimalize! | |
1405 | id_field = bt_ctf_field_structure_get_field( | |
1406 | notit->dscopes.stream_event_header, "id"); | |
fdf0e7a0 PP |
1407 | if (!id_field) { |
1408 | goto check_event_id; | |
1409 | } | |
e98a2d6e PP |
1410 | |
1411 | if (bt_ctf_field_is_integer(id_field)) { | |
1412 | ret = bt_ctf_field_unsigned_integer_get_value( | |
1413 | id_field, &event_id); | |
fdf0e7a0 | 1414 | } else if (bt_ctf_field_is_enumeration(id_field)) { |
e98a2d6e PP |
1415 | struct bt_ctf_field *container; |
1416 | ||
1417 | container = bt_ctf_field_enumeration_get_container( | |
1418 | id_field); | |
1419 | assert(container); | |
1420 | ret = bt_ctf_field_unsigned_integer_get_value( | |
1421 | container, &event_id); | |
1422 | BT_PUT(container); | |
1423 | } | |
fdf0e7a0 PP |
1424 | |
1425 | assert(ret == 0); | |
e98a2d6e PP |
1426 | BT_PUT(id_field); |
1427 | } | |
1428 | ||
fdf0e7a0 | 1429 | check_event_id: |
e98a2d6e | 1430 | if (event_id == -1ULL) { |
fdf0e7a0 | 1431 | single_event_class: |
e98a2d6e PP |
1432 | /* Event ID not found: single event? */ |
1433 | assert(bt_ctf_stream_class_get_event_class_count( | |
1434 | notit->meta.stream_class) == 1); | |
1435 | event_id = 0; | |
1436 | } | |
1437 | ||
fdf0e7a0 PP |
1438 | BT_LOGV("Found event class ID to use: notit-addr=%p, " |
1439 | "stream-class-addr=%p, stream-class-name=\"%s\", " | |
1440 | "stream-class-id=%" PRId64 ", " | |
1441 | "event-class-id=%" PRIu64, | |
1442 | notit, notit->meta.stream_class, | |
1443 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1444 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1445 | event_id); | |
e98a2d6e PP |
1446 | BT_PUT(notit->meta.event_class); |
1447 | notit->meta.event_class = bt_ctf_stream_class_get_event_class_by_id( | |
1448 | notit->meta.stream_class, event_id); | |
1449 | if (!notit->meta.event_class) { | |
fdf0e7a0 PP |
1450 | BT_LOGW("No event class with ID of event class ID to use in stream class: " |
1451 | "notit-addr=%p, stream-class-addr=%p, " | |
1452 | "stream-class-name=\"%s\", " | |
1453 | "stream-class-id=%" PRId64 ", " | |
1454 | "event-class-id=%" PRIu64, | |
1455 | notit, notit->meta.stream_class, | |
1456 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1457 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1458 | event_id); | |
e98a2d6e PP |
1459 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1460 | goto end; | |
1461 | } | |
1462 | ||
fdf0e7a0 PP |
1463 | BT_LOGV("Set current event class: " |
1464 | "notit-addr=%p, event-class-addr=%p, " | |
1465 | "event-class-name=\"%s\", event-class-id=%" PRId64, | |
1466 | notit, notit->meta.event_class, | |
1467 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1468 | bt_ctf_event_class_get_id(notit->meta.event_class)); | |
1469 | ||
e98a2d6e PP |
1470 | end: |
1471 | BT_PUT(event_header_type); | |
1472 | BT_PUT(id_field_type); | |
1473 | BT_PUT(v_field_type); | |
1474 | ||
1475 | return status; | |
1476 | } | |
1477 | ||
1478 | static | |
1479 | enum bt_ctf_notif_iter_status after_event_header_state( | |
1480 | struct bt_ctf_notif_iter *notit) | |
1481 | { | |
1482 | enum bt_ctf_notif_iter_status status; | |
1483 | ||
e98a2d6e PP |
1484 | status = set_current_event_class(notit); |
1485 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
e98a2d6e PP |
1486 | goto end; |
1487 | } | |
1488 | ||
1489 | notit->state = STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN; | |
1490 | ||
1491 | end: | |
1492 | return status; | |
1493 | } | |
1494 | ||
1495 | static | |
1496 | enum bt_ctf_notif_iter_status read_stream_event_context_begin_state( | |
1497 | struct bt_ctf_notif_iter *notit) | |
1498 | { | |
1499 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1500 | struct bt_ctf_field_type *stream_event_context_type; | |
1501 | ||
1502 | stream_event_context_type = bt_ctf_stream_class_get_event_context_type( | |
1503 | notit->meta.stream_class); | |
1504 | if (!stream_event_context_type) { | |
835b2d10 | 1505 | notit->state = STATE_DSCOPE_EVENT_CONTEXT_BEGIN; |
e98a2d6e PP |
1506 | goto end; |
1507 | } | |
1508 | ||
fdf0e7a0 PP |
1509 | BT_LOGV("Decoding stream event context field: " |
1510 | "notit-addr=%p, stream-class-addr=%p, " | |
1511 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1512 | "ft-addr=%p", | |
1513 | notit, notit->meta.stream_class, | |
1514 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1515 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1516 | stream_event_context_type); | |
e98a2d6e PP |
1517 | status = read_dscope_begin_state(notit, stream_event_context_type, |
1518 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN, | |
1519 | STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE, | |
1520 | ¬it->dscopes.stream_event_context); | |
fdf0e7a0 PP |
1521 | if (status < 0) { |
1522 | BT_LOGW("Cannot decode stream event context field: " | |
1523 | "notit-addr=%p, stream-class-addr=%p, " | |
1524 | "stream-class-name=\"%s\", " | |
1525 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1526 | notit, notit->meta.stream_class, | |
1527 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1528 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1529 | stream_event_context_type); | |
1530 | } | |
e98a2d6e PP |
1531 | |
1532 | end: | |
1533 | BT_PUT(stream_event_context_type); | |
1534 | ||
1535 | return status; | |
1536 | } | |
1537 | ||
1538 | static | |
1539 | enum bt_ctf_notif_iter_status read_stream_event_context_continue_state( | |
1540 | struct bt_ctf_notif_iter *notit) | |
1541 | { | |
1542 | return read_dscope_continue_state(notit, | |
1543 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN); | |
1544 | } | |
1545 | ||
1546 | static | |
1547 | enum bt_ctf_notif_iter_status read_event_context_begin_state( | |
1548 | struct bt_ctf_notif_iter *notit) | |
1549 | { | |
1550 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1551 | struct bt_ctf_field_type *event_context_type; | |
1552 | ||
1553 | event_context_type = bt_ctf_event_class_get_context_type( | |
1554 | notit->meta.event_class); | |
1555 | if (!event_context_type) { | |
835b2d10 | 1556 | notit->state = STATE_DSCOPE_EVENT_PAYLOAD_BEGIN; |
e98a2d6e PP |
1557 | goto end; |
1558 | } | |
fdf0e7a0 PP |
1559 | |
1560 | BT_LOGV("Decoding event context field: " | |
1561 | "notit-addr=%p, event-class-addr=%p, " | |
1562 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
1563 | "ft-addr=%p", | |
1564 | notit, notit->meta.event_class, | |
1565 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1566 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
1567 | event_context_type); | |
e98a2d6e PP |
1568 | status = read_dscope_begin_state(notit, event_context_type, |
1569 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, | |
1570 | STATE_DSCOPE_EVENT_CONTEXT_CONTINUE, | |
1571 | ¬it->dscopes.event_context); | |
fdf0e7a0 PP |
1572 | if (status < 0) { |
1573 | BT_LOGW("Cannot decode event context field: " | |
1574 | "notit-addr=%p, event-class-addr=%p, " | |
1575 | "event-class-name=\"%s\", " | |
1576 | "event-class-id=%" PRId64 ", ft-addr=%p", | |
1577 | notit, notit->meta.event_class, | |
1578 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1579 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
1580 | event_context_type); | |
1581 | } | |
e98a2d6e PP |
1582 | |
1583 | end: | |
1584 | BT_PUT(event_context_type); | |
1585 | ||
1586 | return status; | |
1587 | } | |
1588 | ||
1589 | static | |
1590 | enum bt_ctf_notif_iter_status read_event_context_continue_state( | |
1591 | struct bt_ctf_notif_iter *notit) | |
1592 | { | |
1593 | return read_dscope_continue_state(notit, | |
1594 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN); | |
1595 | } | |
1596 | ||
1597 | static | |
1598 | enum bt_ctf_notif_iter_status read_event_payload_begin_state( | |
1599 | struct bt_ctf_notif_iter *notit) | |
1600 | { | |
1601 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1602 | struct bt_ctf_field_type *event_payload_type; | |
1603 | ||
1604 | event_payload_type = bt_ctf_event_class_get_payload_type( | |
1605 | notit->meta.event_class); | |
1606 | if (!event_payload_type) { | |
835b2d10 | 1607 | notit->state = STATE_EMIT_NOTIF_EVENT; |
e98a2d6e PP |
1608 | goto end; |
1609 | } | |
1610 | ||
fdf0e7a0 PP |
1611 | BT_LOGV("Decoding event payload field: " |
1612 | "notit-addr=%p, event-class-addr=%p, " | |
1613 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
1614 | "ft-addr=%p", | |
1615 | notit, notit->meta.event_class, | |
1616 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1617 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
1618 | event_payload_type); | |
e98a2d6e PP |
1619 | status = read_dscope_begin_state(notit, event_payload_type, |
1620 | STATE_EMIT_NOTIF_EVENT, | |
1621 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
1622 | ¬it->dscopes.event_payload); | |
fdf0e7a0 PP |
1623 | if (status < 0) { |
1624 | BT_LOGW("Cannot decode event payload field: " | |
1625 | "notit-addr=%p, event-class-addr=%p, " | |
1626 | "event-class-name=\"%s\", " | |
1627 | "event-class-id=%" PRId64 ", ft-addr=%p", | |
1628 | notit, notit->meta.event_class, | |
1629 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1630 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
1631 | event_payload_type); | |
1632 | } | |
e98a2d6e PP |
1633 | |
1634 | end: | |
1635 | BT_PUT(event_payload_type); | |
1636 | ||
1637 | return status; | |
1638 | } | |
1639 | ||
1640 | static | |
1641 | enum bt_ctf_notif_iter_status read_event_payload_continue_state( | |
1642 | struct bt_ctf_notif_iter *notit) | |
1643 | { | |
1644 | return read_dscope_continue_state(notit, STATE_EMIT_NOTIF_EVENT); | |
1645 | } | |
1646 | ||
1647 | static | |
1648 | enum bt_ctf_notif_iter_status skip_packet_padding_state( | |
1649 | struct bt_ctf_notif_iter *notit) | |
1650 | { | |
1651 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1652 | size_t bits_to_skip; | |
1653 | ||
1654 | assert(notit->cur_packet_size > 0); | |
1655 | bits_to_skip = notit->cur_packet_size - packet_at(notit); | |
1656 | if (bits_to_skip == 0) { | |
1657 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1658 | goto end; | |
1659 | } else { | |
1660 | size_t bits_to_consume; | |
fdf0e7a0 PP |
1661 | |
1662 | BT_LOGV("Trying to skip %zu bits of padding: notit-addr=%p, size=%zu", | |
1663 | bits_to_skip, notit, bits_to_skip); | |
e98a2d6e PP |
1664 | status = buf_ensure_available_bits(notit); |
1665 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
1666 | goto end; | |
1667 | } | |
1668 | ||
1669 | bits_to_consume = MIN(buf_available_bits(notit), bits_to_skip); | |
fdf0e7a0 PP |
1670 | BT_LOGV("Skipping %zu bits of padding: notit-addr=%p, size=%zu", |
1671 | bits_to_consume, notit, bits_to_consume); | |
e98a2d6e PP |
1672 | buf_consume_bits(notit, bits_to_consume); |
1673 | bits_to_skip = notit->cur_packet_size - packet_at(notit); | |
1674 | if (bits_to_skip == 0) { | |
1675 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1676 | goto end; | |
1677 | } | |
1678 | } | |
1679 | ||
1680 | end: | |
1681 | return status; | |
1682 | } | |
1683 | ||
1684 | static inline | |
1685 | enum bt_ctf_notif_iter_status handle_state(struct bt_ctf_notif_iter *notit) | |
1686 | { | |
1687 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
fdf0e7a0 | 1688 | const enum state state = notit->state; |
e98a2d6e | 1689 | |
fdf0e7a0 PP |
1690 | BT_LOGV("Handling state: notit-addr=%p, state=%s", |
1691 | notit, state_string(state)); | |
e98a2d6e PP |
1692 | |
1693 | // TODO: optimalize! | |
fdf0e7a0 | 1694 | switch (state) { |
e98a2d6e PP |
1695 | case STATE_INIT: |
1696 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1697 | break; | |
1698 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
1699 | status = read_packet_header_begin_state(notit); | |
1700 | break; | |
1701 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
1702 | status = read_packet_header_continue_state(notit); | |
1703 | break; | |
1704 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
1705 | status = after_packet_header_state(notit); | |
1706 | break; | |
1707 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
1708 | status = read_packet_context_begin_state(notit); | |
1709 | break; | |
1710 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
1711 | status = read_packet_context_continue_state(notit); | |
1712 | break; | |
1713 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
1714 | status = after_packet_context_state(notit); | |
1715 | break; | |
1716 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
1717 | notit->state = STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN; | |
1718 | break; | |
1719 | case STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN: | |
1720 | status = read_event_header_begin_state(notit); | |
1721 | break; | |
1722 | case STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE: | |
1723 | status = read_event_header_continue_state(notit); | |
1724 | break; | |
1725 | case STATE_AFTER_STREAM_EVENT_HEADER: | |
1726 | status = after_event_header_state(notit); | |
1727 | break; | |
1728 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN: | |
1729 | status = read_stream_event_context_begin_state(notit); | |
1730 | break; | |
1731 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE: | |
1732 | status = read_stream_event_context_continue_state(notit); | |
1733 | break; | |
1734 | case STATE_DSCOPE_EVENT_CONTEXT_BEGIN: | |
1735 | status = read_event_context_begin_state(notit); | |
1736 | break; | |
1737 | case STATE_DSCOPE_EVENT_CONTEXT_CONTINUE: | |
1738 | status = read_event_context_continue_state(notit); | |
1739 | break; | |
1740 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
1741 | status = read_event_payload_begin_state(notit); | |
1742 | break; | |
1743 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
1744 | status = read_event_payload_continue_state(notit); | |
1745 | break; | |
1746 | case STATE_EMIT_NOTIF_EVENT: | |
1747 | notit->state = STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN; | |
1748 | break; | |
1749 | case STATE_SKIP_PACKET_PADDING: | |
1750 | status = skip_packet_padding_state(notit); | |
1751 | break; | |
1752 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
1753 | notit->state = STATE_SKIP_PACKET_PADDING; | |
1754 | break; | |
fdf0e7a0 PP |
1755 | default: |
1756 | BT_LOGD("Unknown CTF plugin notification iterator state: " | |
1757 | "notit-addr=%p, state=%d", notit, notit->state); | |
1758 | abort(); | |
e98a2d6e PP |
1759 | } |
1760 | ||
fdf0e7a0 PP |
1761 | BT_LOGV("Handled state: notit-addr=%p, status=%s, " |
1762 | "prev-state=%s, cur-state=%s", | |
1763 | notit, bt_ctf_notif_iter_status_string(status), | |
1764 | state_string(state), state_string(notit->state)); | |
e98a2d6e PP |
1765 | return status; |
1766 | } | |
1767 | ||
2cf1d51e JG |
1768 | /** |
1769 | * Resets the internal state of a CTF notification iterator. | |
2cf1d51e JG |
1770 | */ |
1771 | static | |
e98a2d6e PP |
1772 | void bt_ctf_notif_iter_reset(struct bt_ctf_notif_iter *notit) |
1773 | { | |
1774 | assert(notit); | |
fdf0e7a0 | 1775 | BT_LOGD("Resetting notification iterator: addr=%p", notit); |
e98a2d6e PP |
1776 | stack_clear(notit->stack); |
1777 | BT_PUT(notit->meta.stream_class); | |
1778 | BT_PUT(notit->meta.event_class); | |
1779 | BT_PUT(notit->packet); | |
af87daef | 1780 | BT_PUT(notit->stream); |
e98a2d6e PP |
1781 | put_all_dscopes(notit); |
1782 | notit->buf.addr = NULL; | |
1783 | notit->buf.sz = 0; | |
1784 | notit->buf.at = 0; | |
1785 | notit->buf.packet_offset = 0; | |
1786 | notit->state = STATE_INIT; | |
1787 | notit->cur_content_size = -1; | |
1788 | notit->cur_packet_size = -1; | |
1789 | } | |
1790 | ||
2cf1d51e JG |
1791 | static |
1792 | int bt_ctf_notif_iter_switch_packet(struct bt_ctf_notif_iter *notit) | |
1793 | { | |
1794 | int ret = 0; | |
1795 | ||
115de887 PP |
1796 | /* |
1797 | * We don't put the stream class here because we need to make | |
1798 | * sure that all the packets processed by the same notification | |
1799 | * iterator refer to the same stream class (the first one). | |
1800 | */ | |
2cf1d51e | 1801 | assert(notit); |
fdf0e7a0 PP |
1802 | BT_LOGV("Switching packet: notit-addr=%p, cur=%zu", |
1803 | notit, notit->buf.at); | |
2cf1d51e | 1804 | stack_clear(notit->stack); |
2cf1d51e JG |
1805 | BT_PUT(notit->meta.event_class); |
1806 | BT_PUT(notit->packet); | |
5f870343 | 1807 | BT_PUT(notit->cur_timestamp_end); |
2cf1d51e JG |
1808 | put_all_dscopes(notit); |
1809 | ||
1810 | /* | |
1811 | * Adjust current buffer so that addr points to the beginning of the new | |
1812 | * packet. | |
1813 | */ | |
1814 | if (notit->buf.addr) { | |
1815 | size_t consumed_bytes = (size_t) (notit->buf.at / CHAR_BIT); | |
1816 | ||
1817 | /* Packets are assumed to start on a byte frontier. */ | |
1818 | if (notit->buf.at % CHAR_BIT) { | |
fdf0e7a0 PP |
1819 | BT_LOGW("Cannot switch packet: current position is not a multiple of 8: " |
1820 | "notit-addr=%p, cur=%zu", notit, notit->buf.at); | |
2cf1d51e JG |
1821 | ret = -1; |
1822 | goto end; | |
1823 | } | |
1824 | ||
1825 | notit->buf.addr += consumed_bytes; | |
1826 | notit->buf.sz -= consumed_bytes; | |
1827 | notit->buf.at = 0; | |
1828 | notit->buf.packet_offset = 0; | |
fdf0e7a0 PP |
1829 | BT_LOGV("Adjusted buffer: addr=%p, size=%zu", |
1830 | notit->buf.addr, notit->buf.sz); | |
2cf1d51e JG |
1831 | } |
1832 | ||
1833 | notit->cur_content_size = -1; | |
1834 | notit->cur_packet_size = -1; | |
5f870343 | 1835 | notit->cur_sc_field_path_cache = NULL; |
fdf0e7a0 | 1836 | |
2cf1d51e JG |
1837 | end: |
1838 | return ret; | |
1839 | } | |
1840 | ||
e98a2d6e PP |
1841 | static |
1842 | struct bt_ctf_field *get_next_field(struct bt_ctf_notif_iter *notit) | |
1843 | { | |
1844 | struct bt_ctf_field *next_field = NULL; | |
1845 | struct bt_ctf_field *base_field; | |
1846 | struct bt_ctf_field_type *base_type; | |
1847 | size_t index; | |
1848 | ||
1849 | assert(!stack_empty(notit->stack)); | |
1850 | index = stack_top(notit->stack)->index; | |
1851 | base_field = stack_top(notit->stack)->base; | |
fdf0e7a0 | 1852 | assert(base_field); |
e98a2d6e | 1853 | base_type = bt_ctf_field_get_type(base_field); |
fdf0e7a0 | 1854 | assert(base_type); |
e98a2d6e PP |
1855 | |
1856 | switch (bt_ctf_field_type_get_type_id(base_type)) { | |
1487a16a | 1857 | case BT_CTF_FIELD_TYPE_ID_STRUCT: |
e98a2d6e PP |
1858 | next_field = bt_ctf_field_structure_get_field_by_index( |
1859 | base_field, index); | |
1860 | break; | |
1487a16a | 1861 | case BT_CTF_FIELD_TYPE_ID_ARRAY: |
e98a2d6e PP |
1862 | next_field = bt_ctf_field_array_get_field(base_field, index); |
1863 | break; | |
1487a16a | 1864 | case BT_CTF_FIELD_TYPE_ID_SEQUENCE: |
e98a2d6e PP |
1865 | next_field = bt_ctf_field_sequence_get_field(base_field, index); |
1866 | break; | |
1487a16a | 1867 | case BT_CTF_FIELD_TYPE_ID_VARIANT: |
e98a2d6e PP |
1868 | next_field = bt_ctf_field_variant_get_current_field(base_field); |
1869 | break; | |
1870 | default: | |
fdf0e7a0 PP |
1871 | BT_LOGF("Unknown base field type ID: " |
1872 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
1873 | notit, base_type, | |
1874 | bt_ctf_field_type_id_string( | |
1875 | bt_ctf_field_type_get_type_id(base_type))); | |
0fbb9a9f | 1876 | abort(); |
e98a2d6e PP |
1877 | } |
1878 | ||
e98a2d6e | 1879 | BT_PUT(base_type); |
e98a2d6e PP |
1880 | return next_field; |
1881 | } | |
1882 | ||
c44c3e70 JG |
1883 | static |
1884 | void update_clock_state(uint64_t *state, | |
1885 | struct bt_ctf_field *value_field) | |
1886 | { | |
1887 | struct bt_ctf_field_type *value_type = NULL; | |
1888 | uint64_t requested_new_value; | |
1889 | uint64_t requested_new_value_mask; | |
1890 | uint64_t cur_value_masked; | |
1891 | int requested_new_value_size; | |
1892 | int ret; | |
1893 | ||
1894 | value_type = bt_ctf_field_get_type(value_field); | |
1895 | assert(value_type); | |
fdf0e7a0 | 1896 | assert(bt_ctf_field_type_is_integer(value_type)); |
c44c3e70 JG |
1897 | requested_new_value_size = |
1898 | bt_ctf_field_type_integer_get_size(value_type); | |
1899 | assert(requested_new_value_size > 0); | |
c44c3e70 JG |
1900 | ret = bt_ctf_field_unsigned_integer_get_value(value_field, |
1901 | &requested_new_value); | |
1902 | assert(!ret); | |
1903 | ||
1904 | /* | |
1905 | * Special case for a 64-bit new value, which is the limit | |
1906 | * of a clock value as of this version: overwrite the | |
1907 | * current value directly. | |
1908 | */ | |
1909 | if (requested_new_value_size == 64) { | |
1910 | *state = requested_new_value; | |
1911 | goto end; | |
1912 | } | |
1913 | ||
1914 | requested_new_value_mask = (1ULL << requested_new_value_size) - 1; | |
1915 | cur_value_masked = *state & requested_new_value_mask; | |
1916 | ||
1917 | if (requested_new_value < cur_value_masked) { | |
1918 | /* | |
1919 | * It looks like a wrap happened on the number of bits | |
1920 | * of the requested new value. Assume that the clock | |
1921 | * value wrapped only one time. | |
1922 | */ | |
1923 | *state += requested_new_value_mask + 1; | |
1924 | } | |
1925 | ||
1926 | /* Clear the low bits of the current clock value. */ | |
1927 | *state &= ~requested_new_value_mask; | |
1928 | ||
1929 | /* Set the low bits of the current clock value. */ | |
1930 | *state |= requested_new_value; | |
1931 | end: | |
fdf0e7a0 PP |
1932 | BT_LOGV("Updated clock's value from integer field's value: " |
1933 | "value=%" PRIu64, *state); | |
c44c3e70 JG |
1934 | bt_put(value_type); |
1935 | } | |
1936 | ||
1937 | static | |
1938 | enum bt_ctf_btr_status update_clock(struct bt_ctf_notif_iter *notit, | |
c44c3e70 JG |
1939 | struct bt_ctf_field *int_field) |
1940 | { | |
ac0c6bdd | 1941 | gboolean clock_class_found; |
8cb1fb66 | 1942 | uint64_t *clock_state = NULL; |
f45bfe88 | 1943 | struct bt_ctf_field_type *int_field_type = NULL; |
c44c3e70 | 1944 | enum bt_ctf_btr_status ret = BT_CTF_BTR_STATUS_OK; |
f45bfe88 | 1945 | struct bt_ctf_clock_class *clock_class = NULL; |
c44c3e70 | 1946 | |
f45bfe88 | 1947 | int_field_type = bt_ctf_field_get_type(int_field); |
fdf0e7a0 | 1948 | assert(int_field_type); |
f45bfe88 PP |
1949 | clock_class = bt_ctf_field_type_integer_get_mapped_clock_class( |
1950 | int_field_type); | |
ac0c6bdd | 1951 | if (likely(!clock_class)) { |
f45bfe88 | 1952 | goto end; |
c44c3e70 JG |
1953 | } |
1954 | ||
ac0c6bdd | 1955 | clock_class_found = g_hash_table_lookup_extended(notit->clock_states, |
fdf0e7a0 | 1956 | clock_class, NULL, (gpointer) &clock_state); |
8cb1fb66 | 1957 | if (!clock_class_found) { |
c44c3e70 JG |
1958 | clock_state = g_new0(uint64_t, 1); |
1959 | if (!clock_state) { | |
fdf0e7a0 | 1960 | BT_LOGE_STR("Failed to allocate a uint64_t."); |
c44c3e70 JG |
1961 | ret = BT_CTF_BTR_STATUS_ENOMEM; |
1962 | goto end; | |
1963 | } | |
fdf0e7a0 | 1964 | |
ac0c6bdd | 1965 | g_hash_table_insert(notit->clock_states, bt_get(clock_class), |
fdf0e7a0 | 1966 | clock_state); |
c44c3e70 JG |
1967 | } |
1968 | ||
1969 | /* Update the clock's state. */ | |
fdf0e7a0 PP |
1970 | BT_LOGV("Updating notification iterator's clock's value from integer field: " |
1971 | "notit-addr=%p, clock-class-addr=%p, " | |
1972 | "clock-class-name=\"%s\", value=%" PRIu64, | |
1973 | notit, clock_class, | |
1974 | bt_ctf_clock_class_get_name(clock_class), *clock_state); | |
c44c3e70 JG |
1975 | update_clock_state(clock_state, int_field); |
1976 | end: | |
f45bfe88 | 1977 | bt_put(int_field_type); |
ac0c6bdd | 1978 | bt_put(clock_class); |
c44c3e70 JG |
1979 | return ret; |
1980 | } | |
1981 | ||
e98a2d6e | 1982 | static |
5f870343 JG |
1983 | enum bt_ctf_btr_status btr_unsigned_int_common(uint64_t value, |
1984 | struct bt_ctf_field_type *type, void *data, | |
f45bfe88 | 1985 | struct bt_ctf_field **out_int_field) |
e98a2d6e PP |
1986 | { |
1987 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
1988 | struct bt_ctf_field *field = NULL; | |
1989 | struct bt_ctf_field *int_field = NULL; | |
1990 | struct bt_ctf_notif_iter *notit = data; | |
1991 | int ret; | |
1992 | ||
fdf0e7a0 PP |
1993 | BT_LOGV("Common unsigned integer function called from BTR: " |
1994 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
1995 | "ft-id=%s, value=%" PRIu64, | |
1996 | notit, notit->btr, type, | |
1997 | bt_ctf_field_type_id_string( | |
1998 | bt_ctf_field_type_get_type_id(type)), | |
1999 | value); | |
2000 | ||
5f870343 | 2001 | /* Create next field */ |
e98a2d6e PP |
2002 | field = get_next_field(notit); |
2003 | if (!field) { | |
fdf0e7a0 | 2004 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
e98a2d6e | 2005 | status = BT_CTF_BTR_STATUS_ERROR; |
c44c3e70 | 2006 | goto end_no_put; |
e98a2d6e PP |
2007 | } |
2008 | ||
2009 | switch(bt_ctf_field_type_get_type_id(type)) { | |
1487a16a | 2010 | case BT_CTF_FIELD_TYPE_ID_INTEGER: |
e98a2d6e PP |
2011 | /* Integer field is created field */ |
2012 | BT_MOVE(int_field, field); | |
c44c3e70 | 2013 | bt_get(type); |
e98a2d6e | 2014 | break; |
1487a16a | 2015 | case BT_CTF_FIELD_TYPE_ID_ENUM: |
e98a2d6e | 2016 | int_field = bt_ctf_field_enumeration_get_container(field); |
fdf0e7a0 | 2017 | assert(int_field); |
c44c3e70 | 2018 | type = bt_ctf_field_get_type(int_field); |
fdf0e7a0 | 2019 | assert(type); |
e98a2d6e PP |
2020 | break; |
2021 | default: | |
fdf0e7a0 PP |
2022 | BT_LOGF("Unexpected field type ID: " |
2023 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
2024 | notit, type, | |
2025 | bt_ctf_field_type_id_string( | |
2026 | bt_ctf_field_type_get_type_id(type))); | |
0fbb9a9f | 2027 | abort(); |
e98a2d6e PP |
2028 | } |
2029 | ||
fdf0e7a0 | 2030 | assert(int_field); |
5f870343 | 2031 | ret = bt_ctf_field_unsigned_integer_set_value(int_field, value); |
fdf0e7a0 | 2032 | assert(ret == 0); |
e98a2d6e | 2033 | stack_top(notit->stack)->index++; |
f45bfe88 | 2034 | *out_int_field = int_field; |
e98a2d6e | 2035 | BT_PUT(field); |
c44c3e70 | 2036 | BT_PUT(type); |
fdf0e7a0 | 2037 | |
c44c3e70 | 2038 | end_no_put: |
e98a2d6e PP |
2039 | return status; |
2040 | } | |
2041 | ||
5f870343 JG |
2042 | static |
2043 | enum bt_ctf_btr_status btr_timestamp_end_cb(void *value, | |
2044 | struct bt_ctf_field_type *type, void *data) | |
2045 | { | |
2046 | enum bt_ctf_btr_status status; | |
2047 | struct bt_ctf_field *field = NULL; | |
2048 | struct bt_ctf_notif_iter *notit = data; | |
2049 | ||
fdf0e7a0 PP |
2050 | BT_LOGV("`timestamp_end` unsigned integer function called from BTR: " |
2051 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2052 | "ft-id=%s", | |
2053 | notit, notit->btr, type, | |
2054 | bt_ctf_field_type_id_string( | |
2055 | bt_ctf_field_type_get_type_id(type))); | |
5f870343 JG |
2056 | status = btr_unsigned_int_common(*((uint64_t *) value), type, data, |
2057 | &field); | |
2058 | ||
2059 | /* Set as the current packet's timestamp_end field. */ | |
2060 | BT_MOVE(notit->cur_timestamp_end, field); | |
2061 | return status; | |
2062 | } | |
2063 | ||
e98a2d6e PP |
2064 | static |
2065 | enum bt_ctf_btr_status btr_unsigned_int_cb(uint64_t value, | |
2066 | struct bt_ctf_field_type *type, void *data) | |
5f870343 JG |
2067 | { |
2068 | struct bt_ctf_notif_iter *notit = data; | |
2069 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2070 | struct bt_ctf_field *field = NULL; | |
2071 | struct field_cb_override *override; | |
2072 | ||
fdf0e7a0 PP |
2073 | BT_LOGV("Unsigned integer function called from BTR: " |
2074 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2075 | "ft-id=%s, value=%" PRIu64, | |
2076 | notit, notit->btr, type, | |
2077 | bt_ctf_field_type_id_string( | |
2078 | bt_ctf_field_type_get_type_id(type)), | |
2079 | value); | |
2080 | override = g_hash_table_lookup(notit->field_overrides, type); | |
5f870343 | 2081 | if (unlikely(override)) { |
fdf0e7a0 | 2082 | /* Override function logs errors */ |
5f870343 JG |
2083 | status = override->func(&value, type, override->data); |
2084 | goto end; | |
2085 | } | |
2086 | ||
2087 | status = btr_unsigned_int_common(value, type, data, &field); | |
2088 | if (status != BT_CTF_BTR_STATUS_OK) { | |
fdf0e7a0 | 2089 | /* btr_unsigned_int_common() logs errors */ |
5f870343 JG |
2090 | goto end; |
2091 | } | |
2092 | ||
f45bfe88 | 2093 | status = update_clock(notit, field); |
5f870343 JG |
2094 | BT_PUT(field); |
2095 | end: | |
2096 | return status; | |
2097 | } | |
2098 | ||
2099 | static | |
2100 | enum bt_ctf_btr_status btr_signed_int_cb(int64_t value, | |
2101 | struct bt_ctf_field_type *type, void *data) | |
e98a2d6e PP |
2102 | { |
2103 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2104 | struct bt_ctf_field *field = NULL; | |
2105 | struct bt_ctf_field *int_field = NULL; | |
2106 | struct bt_ctf_notif_iter *notit = data; | |
2107 | int ret; | |
2108 | ||
fdf0e7a0 PP |
2109 | BT_LOGV("Signed integer function called from BTR: " |
2110 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2111 | "ft-id=%s, value=%" PRId64, | |
2112 | notit, notit->btr, type, | |
2113 | bt_ctf_field_type_id_string( | |
2114 | bt_ctf_field_type_get_type_id(type)), | |
2115 | value); | |
2116 | ||
5f870343 | 2117 | /* create next field */ |
e98a2d6e PP |
2118 | field = get_next_field(notit); |
2119 | if (!field) { | |
fdf0e7a0 | 2120 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
e98a2d6e | 2121 | status = BT_CTF_BTR_STATUS_ERROR; |
c44c3e70 | 2122 | goto end_no_put; |
e98a2d6e PP |
2123 | } |
2124 | ||
2125 | switch(bt_ctf_field_type_get_type_id(type)) { | |
1487a16a | 2126 | case BT_CTF_FIELD_TYPE_ID_INTEGER: |
e98a2d6e PP |
2127 | /* Integer field is created field */ |
2128 | BT_MOVE(int_field, field); | |
c44c3e70 | 2129 | bt_get(type); |
e98a2d6e | 2130 | break; |
1487a16a | 2131 | case BT_CTF_FIELD_TYPE_ID_ENUM: |
e98a2d6e | 2132 | int_field = bt_ctf_field_enumeration_get_container(field); |
fdf0e7a0 | 2133 | assert(int_field); |
c44c3e70 | 2134 | type = bt_ctf_field_get_type(int_field); |
fdf0e7a0 | 2135 | assert(type); |
e98a2d6e PP |
2136 | break; |
2137 | default: | |
fdf0e7a0 PP |
2138 | BT_LOGF("Unexpected field type ID: " |
2139 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
2140 | notit, type, | |
2141 | bt_ctf_field_type_id_string( | |
2142 | bt_ctf_field_type_get_type_id(type))); | |
0fbb9a9f | 2143 | abort(); |
e98a2d6e PP |
2144 | } |
2145 | ||
fdf0e7a0 | 2146 | assert(int_field); |
5f870343 | 2147 | ret = bt_ctf_field_signed_integer_set_value(int_field, value); |
e98a2d6e PP |
2148 | assert(!ret); |
2149 | stack_top(notit->stack)->index++; | |
f45bfe88 | 2150 | status = update_clock(notit, int_field); |
e98a2d6e PP |
2151 | BT_PUT(field); |
2152 | BT_PUT(int_field); | |
c44c3e70 | 2153 | BT_PUT(type); |
fdf0e7a0 | 2154 | |
c44c3e70 | 2155 | end_no_put: |
e98a2d6e PP |
2156 | return status; |
2157 | } | |
2158 | ||
2159 | static | |
2160 | enum bt_ctf_btr_status btr_floating_point_cb(double value, | |
2161 | struct bt_ctf_field_type *type, void *data) | |
2162 | { | |
2163 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2164 | struct bt_ctf_field *field = NULL; | |
2165 | struct bt_ctf_notif_iter *notit = data; | |
2166 | int ret; | |
2167 | ||
fdf0e7a0 PP |
2168 | BT_LOGV("Floating point number function called from BTR: " |
2169 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2170 | "ft-id=%s, value=%f", | |
2171 | notit, notit->btr, type, | |
2172 | bt_ctf_field_type_id_string( | |
2173 | bt_ctf_field_type_get_type_id(type)), | |
2174 | value); | |
2175 | ||
e98a2d6e PP |
2176 | /* Create next field */ |
2177 | field = get_next_field(notit); | |
2178 | if (!field) { | |
fdf0e7a0 | 2179 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
e98a2d6e PP |
2180 | status = BT_CTF_BTR_STATUS_ERROR; |
2181 | goto end; | |
2182 | } | |
2183 | ||
2184 | ret = bt_ctf_field_floating_point_set_value(field, value); | |
2185 | assert(!ret); | |
2186 | stack_top(notit->stack)->index++; | |
2187 | ||
2188 | end: | |
2189 | BT_PUT(field); | |
e98a2d6e PP |
2190 | return status; |
2191 | } | |
2192 | ||
2193 | static | |
2194 | enum bt_ctf_btr_status btr_string_begin_cb( | |
2195 | struct bt_ctf_field_type *type, void *data) | |
2196 | { | |
2197 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2198 | struct bt_ctf_field *field = NULL; | |
2199 | struct bt_ctf_notif_iter *notit = data; | |
2200 | int ret; | |
2201 | ||
fdf0e7a0 PP |
2202 | BT_LOGV("String (beginning) function called from BTR: " |
2203 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2204 | "ft-id=%s", | |
2205 | notit, notit->btr, type, | |
2206 | bt_ctf_field_type_id_string( | |
2207 | bt_ctf_field_type_get_type_id(type))); | |
2208 | ||
e98a2d6e PP |
2209 | /* Create next field */ |
2210 | field = get_next_field(notit); | |
2211 | if (!field) { | |
fdf0e7a0 | 2212 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
e98a2d6e PP |
2213 | status = BT_CTF_BTR_STATUS_ERROR; |
2214 | goto end; | |
2215 | } | |
2216 | ||
2217 | /* | |
2218 | * Push on stack. Not a compound type per se, but we know that only | |
2219 | * btr_string_cb() may be called between this call and a subsequent | |
2220 | * call to btr_string_end_cb(). | |
2221 | */ | |
2222 | ret = stack_push(notit->stack, field); | |
2223 | if (ret) { | |
fdf0e7a0 PP |
2224 | BT_LOGE("Cannot push string field on stack: " |
2225 | "notit-addr=%p, field-addr=%p", notit, field); | |
e98a2d6e PP |
2226 | status = BT_CTF_BTR_STATUS_ERROR; |
2227 | goto end; | |
2228 | } | |
2229 | ||
e5df2ae3 JG |
2230 | /* |
2231 | * Initialize string field payload to an empty string since in the | |
2232 | * case of a length 0 string the btr_string_cb won't be called and | |
2233 | * we will end up with an unset string payload. | |
2234 | */ | |
2235 | ret = bt_ctf_field_string_set_value(field, ""); | |
2236 | if (ret) { | |
fdf0e7a0 PP |
2237 | BT_LOGE("Cannot initialize string field's value to an empty string: " |
2238 | "notit-addr=%p, field-addr=%p, ret=%d", | |
2239 | notit, field, ret); | |
e5df2ae3 JG |
2240 | status = BT_CTF_BTR_STATUS_ERROR; |
2241 | goto end; | |
2242 | } | |
2243 | ||
e98a2d6e PP |
2244 | end: |
2245 | BT_PUT(field); | |
2246 | ||
2247 | return status; | |
2248 | } | |
2249 | ||
2250 | static | |
2251 | enum bt_ctf_btr_status btr_string_cb(const char *value, | |
2252 | size_t len, struct bt_ctf_field_type *type, void *data) | |
2253 | { | |
2254 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2255 | struct bt_ctf_field *field = NULL; | |
2256 | struct bt_ctf_notif_iter *notit = data; | |
2257 | int ret; | |
2258 | ||
fdf0e7a0 PP |
2259 | BT_LOGV("String (substring) function called from BTR: " |
2260 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2261 | "ft-id=%s, string-length=%zu", | |
2262 | notit, notit->btr, type, | |
2263 | bt_ctf_field_type_id_string( | |
2264 | bt_ctf_field_type_get_type_id(type)), | |
2265 | len); | |
2266 | ||
e98a2d6e PP |
2267 | /* Get string field */ |
2268 | field = stack_top(notit->stack)->base; | |
2269 | assert(field); | |
2270 | ||
2271 | /* Append current string */ | |
2272 | ret = bt_ctf_field_string_append_len(field, value, len); | |
2273 | if (ret) { | |
fdf0e7a0 PP |
2274 | BT_LOGE("Cannot append substring to string field's value: " |
2275 | "notit-addr=%p, field-addr=%p, string-length=%zu, " | |
2276 | "ret=%d", notit, field, len, ret); | |
e98a2d6e PP |
2277 | status = BT_CTF_BTR_STATUS_ERROR; |
2278 | goto end; | |
2279 | } | |
2280 | ||
2281 | end: | |
2282 | return status; | |
2283 | } | |
2284 | ||
2285 | static | |
2286 | enum bt_ctf_btr_status btr_string_end_cb( | |
2287 | struct bt_ctf_field_type *type, void *data) | |
2288 | { | |
2289 | struct bt_ctf_notif_iter *notit = data; | |
2290 | ||
fdf0e7a0 PP |
2291 | BT_LOGV("String (end) function called from BTR: " |
2292 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2293 | "ft-id=%s", | |
2294 | notit, notit->btr, type, | |
2295 | bt_ctf_field_type_id_string( | |
2296 | bt_ctf_field_type_get_type_id(type))); | |
2297 | ||
e98a2d6e PP |
2298 | /* Pop string field */ |
2299 | stack_pop(notit->stack); | |
2300 | ||
2301 | /* Go to next field */ | |
2302 | stack_top(notit->stack)->index++; | |
e98a2d6e PP |
2303 | return BT_CTF_BTR_STATUS_OK; |
2304 | } | |
2305 | ||
2306 | enum bt_ctf_btr_status btr_compound_begin_cb( | |
2307 | struct bt_ctf_field_type *type, void *data) | |
2308 | { | |
2309 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2310 | struct bt_ctf_notif_iter *notit = data; | |
2311 | struct bt_ctf_field *field; | |
2312 | int ret; | |
2313 | ||
fdf0e7a0 PP |
2314 | BT_LOGV("Compound (beginning) function called from BTR: " |
2315 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2316 | "ft-id=%s", | |
2317 | notit, notit->btr, type, | |
2318 | bt_ctf_field_type_id_string( | |
2319 | bt_ctf_field_type_get_type_id(type))); | |
2320 | ||
e98a2d6e PP |
2321 | /* Create field */ |
2322 | if (stack_empty(notit->stack)) { | |
2323 | /* Root: create dynamic scope field */ | |
2324 | *notit->cur_dscope_field = bt_ctf_field_create(type); | |
2325 | field = *notit->cur_dscope_field; | |
2326 | ||
2327 | /* | |
2328 | * Field will be put at the end of this function | |
2329 | * (stack_push() will take one reference, but this | |
2330 | * reference is lost upon the equivalent stack_pop() | |
2331 | * later), so also get it for our context to own it. | |
2332 | */ | |
2333 | bt_get(*notit->cur_dscope_field); | |
fdf0e7a0 PP |
2334 | |
2335 | if (!field) { | |
2336 | BT_LOGE("Cannot create compound field: " | |
2337 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
2338 | notit, type, | |
2339 | bt_ctf_field_type_id_string( | |
2340 | bt_ctf_field_type_get_type_id(type))); | |
2341 | status = BT_CTF_BTR_STATUS_ERROR; | |
2342 | goto end; | |
2343 | } | |
e98a2d6e PP |
2344 | } else { |
2345 | field = get_next_field(notit); | |
fdf0e7a0 PP |
2346 | if (!field) { |
2347 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); | |
2348 | status = BT_CTF_BTR_STATUS_ERROR; | |
2349 | goto end; | |
2350 | } | |
e98a2d6e PP |
2351 | } |
2352 | ||
2353 | /* Push field */ | |
fdf0e7a0 | 2354 | assert(field); |
e98a2d6e PP |
2355 | ret = stack_push(notit->stack, field); |
2356 | if (ret) { | |
fdf0e7a0 PP |
2357 | BT_LOGE("Cannot push compound field onto the stack: " |
2358 | "notit-addr=%p, ft-addr=%p, ft-id=%s, ret=%d", | |
2359 | notit, type, | |
2360 | bt_ctf_field_type_id_string( | |
2361 | bt_ctf_field_type_get_type_id(type)), | |
2362 | ret); | |
e98a2d6e PP |
2363 | status = BT_CTF_BTR_STATUS_ERROR; |
2364 | goto end; | |
2365 | } | |
2366 | ||
2367 | end: | |
2368 | BT_PUT(field); | |
2369 | ||
2370 | return status; | |
2371 | } | |
2372 | ||
2373 | enum bt_ctf_btr_status btr_compound_end_cb( | |
2374 | struct bt_ctf_field_type *type, void *data) | |
2375 | { | |
2376 | struct bt_ctf_notif_iter *notit = data; | |
2377 | ||
fdf0e7a0 PP |
2378 | BT_LOGV("Compound (end) function called from BTR: " |
2379 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2380 | "ft-id=%s", | |
2381 | notit, notit->btr, type, | |
2382 | bt_ctf_field_type_id_string( | |
2383 | bt_ctf_field_type_get_type_id(type))); | |
e98a2d6e PP |
2384 | assert(!stack_empty(notit->stack)); |
2385 | ||
2386 | /* Pop stack */ | |
2387 | stack_pop(notit->stack); | |
2388 | ||
2389 | /* If the stack is not empty, increment the base's index */ | |
2390 | if (!stack_empty(notit->stack)) { | |
2391 | stack_top(notit->stack)->index++; | |
2392 | } | |
2393 | ||
2394 | return BT_CTF_BTR_STATUS_OK; | |
2395 | } | |
2396 | ||
2397 | static | |
2398 | struct bt_ctf_field *resolve_field(struct bt_ctf_notif_iter *notit, | |
2399 | struct bt_ctf_field_path *path) | |
2400 | { | |
2401 | struct bt_ctf_field *field = NULL; | |
2402 | unsigned int i; | |
2403 | ||
fdf0e7a0 PP |
2404 | if (BT_LOG_ON_VERBOSE) { |
2405 | GString *gstr = bt_ctf_field_path_string(path); | |
2406 | ||
2407 | BT_LOGV("Resolving field path: notit-addr=%p, field-path=\"%s\"", | |
2408 | notit, gstr ? gstr->str : NULL); | |
2409 | ||
2410 | if (gstr) { | |
2411 | g_string_free(gstr, TRUE); | |
2412 | } | |
2413 | } | |
2414 | ||
e98a2d6e PP |
2415 | switch (bt_ctf_field_path_get_root_scope(path)) { |
2416 | case BT_CTF_SCOPE_TRACE_PACKET_HEADER: | |
2417 | field = notit->dscopes.trace_packet_header; | |
2418 | break; | |
2419 | case BT_CTF_SCOPE_STREAM_PACKET_CONTEXT: | |
2420 | field = notit->dscopes.stream_packet_context; | |
2421 | break; | |
2422 | case BT_CTF_SCOPE_STREAM_EVENT_HEADER: | |
2423 | field = notit->dscopes.stream_event_header; | |
2424 | break; | |
2425 | case BT_CTF_SCOPE_STREAM_EVENT_CONTEXT: | |
2426 | field = notit->dscopes.stream_event_context; | |
2427 | break; | |
2428 | case BT_CTF_SCOPE_EVENT_CONTEXT: | |
2429 | field = notit->dscopes.event_context; | |
2430 | break; | |
2431 | case BT_CTF_SCOPE_EVENT_FIELDS: | |
2432 | field = notit->dscopes.event_payload; | |
2433 | break; | |
2434 | default: | |
fdf0e7a0 PP |
2435 | BT_LOGF("Cannot resolve field path: unknown scope: " |
2436 | "notit-addr=%p, root-scope=%s", | |
2437 | notit, bt_ctf_scope_string( | |
2438 | bt_ctf_field_path_get_root_scope(path))); | |
2439 | abort(); | |
e98a2d6e PP |
2440 | } |
2441 | ||
2442 | if (!field) { | |
fdf0e7a0 PP |
2443 | BT_LOGW("Cannot resolve field path: root field not found: " |
2444 | "notit-addr=%p, root-scope=%s", | |
2445 | notit, bt_ctf_scope_string( | |
2446 | bt_ctf_field_path_get_root_scope(path))); | |
e98a2d6e PP |
2447 | goto end; |
2448 | } | |
2449 | ||
2450 | bt_get(field); | |
2451 | ||
2452 | for (i = 0; i < bt_ctf_field_path_get_index_count(path); ++i) { | |
2453 | struct bt_ctf_field *next_field = NULL; | |
2454 | struct bt_ctf_field_type *field_type; | |
2455 | int index = bt_ctf_field_path_get_index(path, i); | |
2456 | ||
2457 | field_type = bt_ctf_field_get_type(field); | |
fdf0e7a0 | 2458 | assert(field_type); |
e98a2d6e PP |
2459 | |
2460 | if (is_struct_type(field_type)) { | |
2461 | next_field = bt_ctf_field_structure_get_field_by_index( | |
2462 | field, index); | |
2463 | } else if (is_variant_type(field_type)) { | |
2464 | next_field = | |
2465 | bt_ctf_field_variant_get_current_field(field); | |
2466 | } | |
2467 | ||
2468 | BT_PUT(field); | |
2469 | BT_PUT(field_type); | |
2470 | ||
2471 | if (!next_field) { | |
fdf0e7a0 PP |
2472 | BT_LOGW("Cannot find next field: " |
2473 | "notit-addr=%p, ft-addr=%p, ft-id=%s, index=%d", | |
2474 | notit, field_type, | |
2475 | bt_ctf_field_type_id_string( | |
2476 | bt_ctf_field_type_get_type_id(field_type)), | |
2477 | index); | |
e98a2d6e PP |
2478 | goto end; |
2479 | } | |
2480 | ||
2481 | /* Move next field -> field */ | |
2482 | BT_MOVE(field, next_field); | |
2483 | } | |
2484 | ||
2485 | end: | |
2486 | return field; | |
2487 | } | |
2488 | ||
2489 | static | |
2490 | int64_t btr_get_sequence_length_cb(struct bt_ctf_field_type *type, void *data) | |
2491 | { | |
2492 | int64_t ret = -1; | |
2493 | int iret; | |
fdf0e7a0 | 2494 | struct bt_ctf_field *seq_field; |
e98a2d6e PP |
2495 | struct bt_ctf_field_path *field_path; |
2496 | struct bt_ctf_notif_iter *notit = data; | |
2cf1d51e | 2497 | struct bt_ctf_field *length_field = NULL; |
e98a2d6e PP |
2498 | uint64_t length; |
2499 | ||
2500 | field_path = bt_ctf_field_type_sequence_get_length_field_path(type); | |
fdf0e7a0 | 2501 | assert(field_path); |
2cf1d51e JG |
2502 | length_field = resolve_field(notit, field_path); |
2503 | if (!length_field) { | |
fdf0e7a0 PP |
2504 | BT_LOGW("Cannot resolve sequence field type's length field path: " |
2505 | "notit-addr=%p, ft-addr=%p", | |
2506 | notit, type); | |
e98a2d6e PP |
2507 | goto end; |
2508 | } | |
2509 | ||
2cf1d51e | 2510 | iret = bt_ctf_field_unsigned_integer_get_value(length_field, &length); |
e98a2d6e | 2511 | if (iret) { |
fdf0e7a0 PP |
2512 | BT_LOGE("Cannot get value of sequence length field: " |
2513 | "notit-addr=%p, field-addr=%p", | |
2514 | notit, length_field); | |
e98a2d6e PP |
2515 | goto end; |
2516 | } | |
2517 | ||
fdf0e7a0 PP |
2518 | seq_field = stack_top(notit->stack)->base; |
2519 | iret = bt_ctf_field_sequence_set_length(seq_field, length_field); | |
2cf1d51e | 2520 | if (iret) { |
fdf0e7a0 PP |
2521 | BT_LOGE("Cannot set sequence field's length field: " |
2522 | "notit-addr=%p, seq-field-addr=%p, " | |
2523 | "length-field-addr=%p, ", | |
2524 | notit, seq_field, length_field); | |
2cf1d51e JG |
2525 | goto end; |
2526 | } | |
fdf0e7a0 | 2527 | |
e98a2d6e PP |
2528 | ret = (int64_t) length; |
2529 | ||
2530 | end: | |
2cf1d51e | 2531 | BT_PUT(length_field); |
e98a2d6e PP |
2532 | BT_PUT(field_path); |
2533 | ||
2534 | return ret; | |
2535 | } | |
2536 | ||
2537 | static | |
2538 | struct bt_ctf_field_type *btr_get_variant_type_cb( | |
2539 | struct bt_ctf_field_type *type, void *data) | |
2540 | { | |
2541 | struct bt_ctf_field_path *path; | |
2542 | struct bt_ctf_notif_iter *notit = data; | |
fdf0e7a0 | 2543 | struct bt_ctf_field *var_field; |
e98a2d6e PP |
2544 | struct bt_ctf_field *tag_field = NULL; |
2545 | struct bt_ctf_field *selected_field = NULL; | |
2546 | struct bt_ctf_field_type *selected_field_type = NULL; | |
2547 | ||
2548 | path = bt_ctf_field_type_variant_get_tag_field_path(type); | |
fdf0e7a0 | 2549 | assert(path); |
e98a2d6e PP |
2550 | tag_field = resolve_field(notit, path); |
2551 | if (!tag_field) { | |
fdf0e7a0 PP |
2552 | BT_LOGW("Cannot resolve variant field type's tag field path: " |
2553 | "notit-addr=%p, ft-addr=%p", | |
2554 | notit, type); | |
e98a2d6e PP |
2555 | goto end; |
2556 | } | |
2557 | ||
2558 | /* | |
2559 | * We found the enumeration tag field instance which should be | |
2560 | * able to select a current field for this variant. This | |
2561 | * callback function we're in is called _after_ | |
2562 | * compound_begin(), so the current stack top's base field is | |
2563 | * the variant field in question. We get the selected field here | |
2564 | * thanks to this tag field (thus creating the selected field), | |
2565 | * which will also provide us with its type. Then, this field | |
2566 | * will remain the current selected one until the next callback | |
2567 | * function call which is used to fill the current selected | |
2568 | * field. | |
2569 | */ | |
fdf0e7a0 PP |
2570 | var_field = stack_top(notit->stack)->base; |
2571 | selected_field = bt_ctf_field_variant_get_field(var_field, tag_field); | |
e98a2d6e | 2572 | if (!selected_field) { |
fdf0e7a0 PP |
2573 | BT_LOGW("Cannot get variant field's selection using tag field: " |
2574 | "notit-addr=%p, var-field-addr=%p, tag-field-addr=%p", | |
2575 | notit, var_field, tag_field); | |
e98a2d6e PP |
2576 | goto end; |
2577 | } | |
2578 | ||
2579 | selected_field_type = bt_ctf_field_get_type(selected_field); | |
2580 | ||
2581 | end: | |
2582 | BT_PUT(tag_field); | |
2583 | BT_PUT(selected_field); | |
f77ae72a | 2584 | BT_PUT(path); |
e98a2d6e PP |
2585 | |
2586 | return selected_field_type; | |
2587 | } | |
2588 | ||
1556a1af JG |
2589 | static |
2590 | int set_event_clocks(struct bt_ctf_event *event, | |
2591 | struct bt_ctf_notif_iter *notit) | |
2592 | { | |
2593 | int ret; | |
2594 | GHashTableIter iter; | |
ac0c6bdd | 2595 | struct bt_ctf_clock_class *clock_class; |
1556a1af JG |
2596 | uint64_t *clock_state; |
2597 | ||
2598 | g_hash_table_iter_init(&iter, notit->clock_states); | |
2599 | ||
ac0c6bdd | 2600 | while (g_hash_table_iter_next(&iter, (gpointer) &clock_class, |
1556a1af JG |
2601 | (gpointer) &clock_state)) { |
2602 | struct bt_ctf_clock_value *clock_value; | |
2603 | ||
ac0c6bdd PP |
2604 | clock_value = bt_ctf_clock_value_create(clock_class, |
2605 | *clock_state); | |
1556a1af | 2606 | if (!clock_value) { |
fdf0e7a0 PP |
2607 | BT_LOGE("Cannot create clock value from clock class: " |
2608 | "notit-addr=%p, clock-class-addr=%p, " | |
2609 | "clock-class-name=\"%s\"", | |
2610 | notit, clock_class, | |
2611 | bt_ctf_clock_class_get_name(clock_class)); | |
1556a1af JG |
2612 | ret = -1; |
2613 | goto end; | |
2614 | } | |
3f3c46b8 | 2615 | ret = bt_ctf_event_set_clock_value(event, clock_value); |
1556a1af JG |
2616 | bt_put(clock_value); |
2617 | if (ret) { | |
fdf0e7a0 PP |
2618 | struct bt_ctf_event_class *event_class = |
2619 | bt_ctf_event_get_class(event); | |
2620 | ||
2621 | assert(event_class); | |
2622 | BT_LOGE("Cannot set event's clock value: " | |
2623 | "notit-addr=%p, event-addr=%p, " | |
2624 | "event-class-name=\"%s\", " | |
2625 | "event-class-id=%" PRId64 ", " | |
2626 | "clock-class-addr=%p, " | |
2627 | "clock-class-name=\"%s\", " | |
2628 | "clock-value-addr=%p", | |
2629 | notit, event, | |
2630 | bt_ctf_event_class_get_name(event_class), | |
2631 | bt_ctf_event_class_get_id(event_class), | |
2632 | clock_class, | |
2633 | bt_ctf_clock_class_get_name(clock_class), | |
2634 | clock_value); | |
2635 | bt_put(event_class); | |
1556a1af JG |
2636 | goto end; |
2637 | } | |
2638 | } | |
fdf0e7a0 | 2639 | |
1556a1af JG |
2640 | ret = 0; |
2641 | end: | |
2642 | return ret; | |
2643 | } | |
2644 | ||
78586d8a JG |
2645 | static |
2646 | struct bt_ctf_event *create_event(struct bt_ctf_notif_iter *notit) | |
e98a2d6e | 2647 | { |
e98a2d6e | 2648 | int ret; |
78586d8a | 2649 | struct bt_ctf_event *event; |
e98a2d6e | 2650 | |
fdf0e7a0 PP |
2651 | BT_LOGV("Creating event for event notification: " |
2652 | "notit-addr=%p, event-class-addr=%p, " | |
2653 | "event-class-name=\"%s\", " | |
2654 | "event-class-id=%" PRId64, | |
2655 | notit, notit->meta.event_class, | |
2656 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2657 | bt_ctf_event_class_get_id(notit->meta.event_class)); | |
2658 | ||
78586d8a | 2659 | /* Create event object. */ |
e98a2d6e PP |
2660 | event = bt_ctf_event_create(notit->meta.event_class); |
2661 | if (!event) { | |
fdf0e7a0 PP |
2662 | BT_LOGE("Cannot create event: " |
2663 | "notit-addr=%p, event-class-addr=%p, " | |
2664 | "event-class-name=\"%s\", " | |
2665 | "event-class-id=%" PRId64, | |
2666 | notit, notit->meta.event_class, | |
2667 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2668 | bt_ctf_event_class_get_id(notit->meta.event_class)); | |
e98a2d6e PP |
2669 | goto error; |
2670 | } | |
2671 | ||
78586d8a | 2672 | /* Set header, stream event context, context, and payload fields. */ |
e98a2d6e PP |
2673 | ret = bt_ctf_event_set_header(event, |
2674 | notit->dscopes.stream_event_header); | |
2675 | if (ret) { | |
fdf0e7a0 PP |
2676 | BT_LOGE("Cannot set event's header field: " |
2677 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2678 | "event-class-name=\"%s\", " | |
2679 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2680 | notit, event, notit->meta.event_class, | |
2681 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2682 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2683 | notit->dscopes.stream_event_header); | |
e98a2d6e PP |
2684 | goto error; |
2685 | } | |
2686 | ||
2687 | ret = bt_ctf_event_set_stream_event_context(event, | |
2688 | notit->dscopes.stream_event_context); | |
2689 | if (ret) { | |
fdf0e7a0 PP |
2690 | BT_LOGE("Cannot set event's context field: " |
2691 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2692 | "event-class-name=\"%s\", " | |
2693 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2694 | notit, event, notit->meta.event_class, | |
2695 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2696 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2697 | notit->dscopes.stream_event_context); | |
e98a2d6e PP |
2698 | goto error; |
2699 | } | |
2700 | ||
2701 | ret = bt_ctf_event_set_event_context(event, | |
2702 | notit->dscopes.event_context); | |
2703 | if (ret) { | |
fdf0e7a0 PP |
2704 | BT_LOGE("Cannot set event's stream event context field: " |
2705 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2706 | "event-class-name=\"%s\", " | |
2707 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2708 | notit, event, notit->meta.event_class, | |
2709 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2710 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2711 | notit->dscopes.event_context); | |
e98a2d6e PP |
2712 | goto error; |
2713 | } | |
2714 | ||
9ac68eb1 | 2715 | ret = bt_ctf_event_set_event_payload(event, |
e98a2d6e PP |
2716 | notit->dscopes.event_payload); |
2717 | if (ret) { | |
fdf0e7a0 PP |
2718 | BT_LOGE("Cannot set event's payload field: " |
2719 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2720 | "event-class-name=\"%s\", " | |
2721 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2722 | notit, event, notit->meta.event_class, | |
2723 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2724 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2725 | notit->dscopes.event_payload); | |
e98a2d6e PP |
2726 | goto error; |
2727 | } | |
2728 | ||
1556a1af JG |
2729 | ret = set_event_clocks(event, notit); |
2730 | if (ret) { | |
fdf0e7a0 PP |
2731 | BT_LOGE("Cannot set event's clock values: " |
2732 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2733 | "event-class-name=\"%s\", " | |
2734 | "event-class-id=%" PRId64, | |
2735 | notit, event, notit->meta.event_class, | |
2736 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2737 | bt_ctf_event_class_get_id(notit->meta.event_class)); | |
1556a1af JG |
2738 | goto error; |
2739 | } | |
2740 | ||
78586d8a | 2741 | /* Associate with current packet. */ |
e98a2d6e PP |
2742 | assert(notit->packet); |
2743 | ret = bt_ctf_event_set_packet(event, notit->packet); | |
2744 | if (ret) { | |
fdf0e7a0 PP |
2745 | BT_LOGE("Cannot set event's header field: " |
2746 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2747 | "event-class-name=\"%s\", " | |
2748 | "event-class-id=%" PRId64 ", packet-addr=%p", | |
2749 | notit, event, notit->meta.event_class, | |
2750 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2751 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2752 | notit->packet); | |
e98a2d6e PP |
2753 | goto error; |
2754 | } | |
2755 | ||
2756 | goto end; | |
fdf0e7a0 | 2757 | |
e98a2d6e PP |
2758 | error: |
2759 | BT_PUT(event); | |
fdf0e7a0 | 2760 | |
e98a2d6e PP |
2761 | end: |
2762 | return event; | |
2763 | } | |
2764 | ||
b92735af PP |
2765 | static |
2766 | uint64_t get_cur_stream_instance_id(struct bt_ctf_notif_iter *notit) | |
2767 | { | |
2768 | struct bt_ctf_field *stream_instance_id_field = NULL; | |
2769 | uint64_t stream_instance_id = -1ULL; | |
2770 | int ret; | |
2771 | ||
2772 | if (!notit->dscopes.trace_packet_header) { | |
2773 | goto end; | |
2774 | } | |
2775 | ||
2776 | stream_instance_id_field = bt_ctf_field_structure_get_field_by_name( | |
2777 | notit->dscopes.trace_packet_header, "stream_instance_id"); | |
2778 | if (!stream_instance_id_field) { | |
2779 | goto end; | |
2780 | } | |
2781 | ||
2782 | ret = bt_ctf_field_unsigned_integer_get_value(stream_instance_id_field, | |
2783 | &stream_instance_id); | |
2784 | if (ret) { | |
2785 | stream_instance_id = -1ULL; | |
2786 | goto end; | |
2787 | } | |
2788 | ||
2789 | end: | |
2790 | bt_put(stream_instance_id_field); | |
2791 | return stream_instance_id; | |
2792 | } | |
2793 | ||
78586d8a | 2794 | static |
af87daef | 2795 | int set_stream(struct bt_ctf_notif_iter *notit) |
e98a2d6e | 2796 | { |
af87daef | 2797 | int ret = 0; |
e98a2d6e | 2798 | struct bt_ctf_stream *stream = NULL; |
e98a2d6e | 2799 | |
fdf0e7a0 PP |
2800 | BT_LOGV("Calling user function (get stream): notit-addr=%p, " |
2801 | "stream-class-addr=%p, stream-class-name=\"%s\", " | |
2802 | "stream-class-id=%" PRId64, | |
2803 | notit, notit->meta.stream_class, | |
2804 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
2805 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
af87daef | 2806 | stream = bt_get(notit->medium.medops.get_stream( |
b92735af PP |
2807 | notit->meta.stream_class, get_cur_stream_instance_id(notit), |
2808 | notit->medium.data)); | |
af87daef | 2809 | BT_LOGV("User function returned: stream-addr=%p", stream); |
e98a2d6e | 2810 | if (!stream) { |
fdf0e7a0 | 2811 | BT_LOGW_STR("User function failed to return a stream object for the given stream class."); |
af87daef PP |
2812 | ret = -1; |
2813 | goto end; | |
2814 | } | |
2815 | ||
2816 | if (notit->stream && stream != notit->stream) { | |
2817 | BT_LOGW("User function returned a different stream than the previous one for the same sequence of packets."); | |
2818 | ret = -1; | |
2819 | goto end; | |
2820 | } | |
2821 | ||
2822 | BT_MOVE(notit->stream, stream); | |
2823 | ||
2824 | end: | |
2825 | bt_put(stream); | |
2826 | return ret; | |
2827 | } | |
2828 | ||
2829 | static | |
2830 | void create_packet(struct bt_ctf_notif_iter *notit) | |
2831 | { | |
2832 | int ret; | |
2833 | struct bt_ctf_packet *packet = NULL; | |
2834 | ||
2835 | BT_LOGV("Creating packet for packet notification: " | |
2836 | "notit-addr=%p", notit); | |
2837 | ||
2838 | /* Ask the user for the stream */ | |
2839 | ret = set_stream(notit); | |
2840 | if (ret) { | |
e98a2d6e PP |
2841 | goto error; |
2842 | } | |
2843 | ||
fdf0e7a0 PP |
2844 | BT_LOGV("Creating packet from stream: " |
2845 | "notit-addr=%p, stream-addr=%p, " | |
2846 | "stream-class-addr=%p, " | |
2847 | "stream-class-name=\"%s\", " | |
2848 | "stream-class-id=%" PRId64, | |
af87daef | 2849 | notit, notit->stream, notit->meta.stream_class, |
fdf0e7a0 PP |
2850 | bt_ctf_stream_class_get_name(notit->meta.stream_class), |
2851 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
2852 | ||
e98a2d6e | 2853 | /* Create packet */ |
af87daef | 2854 | packet = bt_ctf_packet_create(notit->stream); |
e98a2d6e | 2855 | if (!packet) { |
fdf0e7a0 PP |
2856 | BT_LOGE("Cannot create packet from stream: " |
2857 | "notit-addr=%p, stream-addr=%p, " | |
2858 | "stream-class-addr=%p, " | |
2859 | "stream-class-name=\"%s\", " | |
2860 | "stream-class-id=%" PRId64, | |
af87daef | 2861 | notit, notit->stream, notit->meta.stream_class, |
fdf0e7a0 PP |
2862 | bt_ctf_stream_class_get_name(notit->meta.stream_class), |
2863 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
e98a2d6e PP |
2864 | goto error; |
2865 | } | |
2866 | ||
2867 | /* Set packet's context and header fields */ | |
2868 | if (notit->dscopes.trace_packet_header) { | |
2869 | ret = bt_ctf_packet_set_header(packet, | |
fdf0e7a0 | 2870 | notit->dscopes.trace_packet_header); |
e98a2d6e | 2871 | if (ret) { |
fdf0e7a0 PP |
2872 | BT_LOGE("Cannot set packet's header field: " |
2873 | "notit-addr=%p, packet-addr=%p, " | |
2874 | "stream-addr=%p, " | |
2875 | "stream-class-addr=%p, " | |
2876 | "stream-class-name=\"%s\", " | |
2877 | "stream-class-id=%" PRId64 ", " | |
2878 | "field-addr=%p", | |
af87daef | 2879 | notit, packet, notit->stream, notit->meta.stream_class, |
fdf0e7a0 PP |
2880 | bt_ctf_stream_class_get_name(notit->meta.stream_class), |
2881 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
2882 | notit->dscopes.trace_packet_header); | |
e98a2d6e PP |
2883 | goto error; |
2884 | } | |
2885 | } | |
2886 | ||
2887 | if (notit->dscopes.stream_packet_context) { | |
2888 | ret = bt_ctf_packet_set_context(packet, | |
fdf0e7a0 | 2889 | notit->dscopes.stream_packet_context); |
e98a2d6e | 2890 | if (ret) { |
fdf0e7a0 PP |
2891 | BT_LOGE("Cannot set packet's context field: " |
2892 | "notit-addr=%p, packet-addr=%p, " | |
2893 | "stream-addr=%p, " | |
2894 | "stream-class-addr=%p, " | |
2895 | "stream-class-name=\"%s\", " | |
2896 | "stream-class-id=%" PRId64 ", " | |
2897 | "field-addr=%p", | |
af87daef | 2898 | notit, packet, notit->stream, notit->meta.stream_class, |
fdf0e7a0 PP |
2899 | bt_ctf_stream_class_get_name(notit->meta.stream_class), |
2900 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
2901 | notit->dscopes.trace_packet_header); | |
e98a2d6e PP |
2902 | goto error; |
2903 | } | |
2904 | } | |
2905 | ||
2906 | goto end; | |
fdf0e7a0 | 2907 | |
e98a2d6e PP |
2908 | error: |
2909 | BT_PUT(packet); | |
fdf0e7a0 | 2910 | |
e98a2d6e PP |
2911 | end: |
2912 | BT_MOVE(notit->packet, packet); | |
2913 | } | |
2914 | ||
78586d8a JG |
2915 | static |
2916 | void notify_new_packet(struct bt_ctf_notif_iter *notit, | |
2917 | struct bt_notification **notification) | |
e98a2d6e | 2918 | { |
78586d8a | 2919 | struct bt_notification *ret; |
e98a2d6e | 2920 | |
78586d8a | 2921 | /* Initialize the iterator's current packet */ |
e98a2d6e PP |
2922 | create_packet(notit); |
2923 | if (!notit->packet) { | |
fdf0e7a0 PP |
2924 | BT_LOGE("Cannot create packet for packet notification: " |
2925 | "notit-addr=%p", notit); | |
78586d8a | 2926 | return; |
e98a2d6e PP |
2927 | } |
2928 | ||
ea0e619e | 2929 | ret = bt_notification_packet_begin_create(notit->packet); |
78586d8a | 2930 | if (!ret) { |
fdf0e7a0 PP |
2931 | BT_LOGE("Cannot create packet beginning notification: " |
2932 | "notit-addr=%p, packet-addr=%p", | |
2933 | notit, notit->packet); | |
78586d8a JG |
2934 | return; |
2935 | } | |
2936 | *notification = ret; | |
e98a2d6e PP |
2937 | } |
2938 | ||
78586d8a JG |
2939 | static |
2940 | void notify_end_of_packet(struct bt_ctf_notif_iter *notit, | |
2941 | struct bt_notification **notification) | |
e98a2d6e | 2942 | { |
78586d8a | 2943 | struct bt_notification *ret; |
e98a2d6e | 2944 | |
e98a2d6e | 2945 | if (!notit->packet) { |
78586d8a | 2946 | return; |
e98a2d6e PP |
2947 | } |
2948 | ||
78586d8a JG |
2949 | ret = bt_notification_packet_end_create(notit->packet); |
2950 | if (!ret) { | |
fdf0e7a0 PP |
2951 | BT_LOGE("Cannot create packet end notification: " |
2952 | "notit-addr=%p, packet-addr=%p", | |
2953 | notit, notit->packet); | |
78586d8a JG |
2954 | return; |
2955 | } | |
2956 | BT_PUT(notit->packet); | |
2957 | *notification = ret; | |
e98a2d6e PP |
2958 | } |
2959 | ||
78586d8a JG |
2960 | static |
2961 | void notify_event(struct bt_ctf_notif_iter *notit, | |
0982a26d | 2962 | struct bt_clock_class_priority_map *cc_prio_map, |
78586d8a | 2963 | struct bt_notification **notification) |
e98a2d6e | 2964 | { |
78586d8a JG |
2965 | struct bt_ctf_event *event; |
2966 | struct bt_notification *ret = NULL; | |
e98a2d6e PP |
2967 | |
2968 | /* Create event */ | |
2969 | event = create_event(notit); | |
2970 | if (!event) { | |
fdf0e7a0 PP |
2971 | BT_LOGE("Cannot create event for event notification: " |
2972 | "notit-addr=%p", notit); | |
78586d8a | 2973 | goto end; |
e98a2d6e | 2974 | } |
e98a2d6e | 2975 | |
0982a26d | 2976 | ret = bt_notification_event_create(event, cc_prio_map); |
78586d8a | 2977 | if (!ret) { |
fdf0e7a0 PP |
2978 | BT_LOGE("Cannot create event notification: " |
2979 | "notit-addr=%p, event-addr=%p, " | |
2980 | "cc-prio-map-addr=%p", | |
2981 | notit, event, cc_prio_map); | |
78586d8a | 2982 | goto end; |
e98a2d6e | 2983 | } |
78586d8a JG |
2984 | *notification = ret; |
2985 | end: | |
2986 | BT_PUT(event); | |
e98a2d6e PP |
2987 | } |
2988 | ||
5f870343 JG |
2989 | static |
2990 | void init_trace_field_path_cache(struct bt_ctf_trace *trace, | |
2991 | struct trace_field_path_cache *trace_field_path_cache) | |
2992 | { | |
2993 | int stream_id = -1; | |
2994 | int stream_instance_id = -1; | |
2995 | int i, count; | |
2996 | struct bt_ctf_field_type *packet_header = NULL; | |
2997 | ||
2998 | packet_header = bt_ctf_trace_get_packet_header_type(trace); | |
2999 | if (!packet_header) { | |
3000 | goto end; | |
3001 | } | |
3002 | ||
3003 | if (!bt_ctf_field_type_is_structure(packet_header)) { | |
3004 | goto end; | |
3005 | } | |
3006 | ||
3007 | count = bt_ctf_field_type_structure_get_field_count(packet_header); | |
fdf0e7a0 | 3008 | assert(count >= 0); |
5f870343 JG |
3009 | |
3010 | for (i = 0; (i < count && (stream_id == -1 || stream_instance_id == -1)); i++) { | |
3011 | int ret; | |
3012 | const char *field_name; | |
3013 | ||
3014 | ret = bt_ctf_field_type_structure_get_field(packet_header, | |
3015 | &field_name, NULL, i); | |
3016 | if (ret) { | |
fdf0e7a0 PP |
3017 | BT_LOGE("Cannot get structure field's field: " |
3018 | "field-addr=%p, index=%d", | |
3019 | packet_header, i); | |
5f870343 JG |
3020 | goto end; |
3021 | } | |
3022 | ||
3023 | if (stream_id == -1 && !strcmp(field_name, "stream_id")) { | |
3024 | stream_id = i; | |
3025 | } else if (stream_instance_id == -1 && | |
3026 | !strcmp(field_name, "stream_instance_id")) { | |
3027 | stream_instance_id = i; | |
3028 | } | |
3029 | } | |
fdf0e7a0 | 3030 | |
5f870343 JG |
3031 | end: |
3032 | trace_field_path_cache->stream_id = stream_id; | |
3033 | trace_field_path_cache->stream_instance_id = stream_instance_id; | |
3034 | BT_PUT(packet_header); | |
3035 | } | |
3036 | ||
c44c3e70 | 3037 | BT_HIDDEN |
e98a2d6e PP |
3038 | struct bt_ctf_notif_iter *bt_ctf_notif_iter_create(struct bt_ctf_trace *trace, |
3039 | size_t max_request_sz, | |
55314f2a | 3040 | struct bt_ctf_notif_iter_medium_ops medops, void *data) |
e98a2d6e PP |
3041 | { |
3042 | struct bt_ctf_notif_iter *notit = NULL; | |
3043 | struct bt_ctf_btr_cbs cbs = { | |
3044 | .types = { | |
3045 | .signed_int = btr_signed_int_cb, | |
3046 | .unsigned_int = btr_unsigned_int_cb, | |
3047 | .floating_point = btr_floating_point_cb, | |
3048 | .string_begin = btr_string_begin_cb, | |
3049 | .string = btr_string_cb, | |
3050 | .string_end = btr_string_end_cb, | |
3051 | .compound_begin = btr_compound_begin_cb, | |
3052 | .compound_end = btr_compound_end_cb, | |
3053 | }, | |
3054 | .query = { | |
3055 | .get_sequence_length = btr_get_sequence_length_cb, | |
3056 | .get_variant_type = btr_get_variant_type_cb, | |
3057 | }, | |
3058 | }; | |
3059 | ||
3060 | assert(trace); | |
3061 | assert(medops.request_bytes); | |
f3985ab1 | 3062 | assert(medops.get_stream); |
fdf0e7a0 PP |
3063 | BT_LOGD("Creating CTF plugin notification iterator: " |
3064 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
3065 | "data=%p", | |
3066 | trace, bt_ctf_trace_get_name(trace), max_request_sz, data); | |
e98a2d6e PP |
3067 | notit = g_new0(struct bt_ctf_notif_iter, 1); |
3068 | if (!notit) { | |
fdf0e7a0 | 3069 | BT_LOGE_STR("Failed to allocate one CTF plugin notification iterator."); |
e98a2d6e PP |
3070 | goto end; |
3071 | } | |
c44c3e70 | 3072 | notit->clock_states = g_hash_table_new_full(g_direct_hash, |
fdf0e7a0 | 3073 | g_direct_equal, bt_put, g_free); |
c44c3e70 | 3074 | if (!notit->clock_states) { |
fdf0e7a0 | 3075 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
c44c3e70 JG |
3076 | goto error; |
3077 | } | |
35d47007 | 3078 | notit->meta.trace = bt_get(trace); |
e98a2d6e PP |
3079 | notit->medium.medops = medops; |
3080 | notit->medium.max_request_sz = max_request_sz; | |
3081 | notit->medium.data = data; | |
e98a2d6e PP |
3082 | notit->stack = stack_new(notit); |
3083 | if (!notit->stack) { | |
fdf0e7a0 | 3084 | BT_LOGE_STR("Failed to create field stack."); |
c44c3e70 | 3085 | goto error; |
e98a2d6e PP |
3086 | } |
3087 | ||
55314f2a | 3088 | notit->btr = bt_ctf_btr_create(cbs, notit); |
e98a2d6e | 3089 | if (!notit->btr) { |
fdf0e7a0 | 3090 | BT_LOGE_STR("Failed to create binary type reader (BTR)."); |
c44c3e70 | 3091 | goto error; |
e98a2d6e PP |
3092 | } |
3093 | ||
3094 | bt_ctf_notif_iter_reset(notit); | |
5f870343 JG |
3095 | init_trace_field_path_cache(trace, ¬it->trace_field_path_cache); |
3096 | notit->sc_field_path_caches = g_hash_table_new_full(g_direct_hash, | |
fdf0e7a0 | 3097 | g_direct_equal, bt_put, g_free); |
5f870343 | 3098 | if (!notit->sc_field_path_caches) { |
fdf0e7a0 | 3099 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
5f870343 JG |
3100 | goto error; |
3101 | } | |
3102 | ||
3103 | notit->field_overrides = g_hash_table_new_full(g_direct_hash, | |
fdf0e7a0 | 3104 | g_direct_equal, bt_put, g_free); |
5f870343 | 3105 | if (!notit->field_overrides) { |
fdf0e7a0 | 3106 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
5f870343 JG |
3107 | goto error; |
3108 | } | |
3109 | ||
fdf0e7a0 PP |
3110 | BT_LOGD("Created CTF plugin notification iterator: " |
3111 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
3112 | "data=%p, notit-addr=%p", | |
3113 | trace, bt_ctf_trace_get_name(trace), max_request_sz, data, | |
3114 | notit); | |
3115 | ||
e98a2d6e PP |
3116 | end: |
3117 | return notit; | |
fdf0e7a0 | 3118 | |
c44c3e70 JG |
3119 | error: |
3120 | bt_ctf_notif_iter_destroy(notit); | |
3121 | notit = NULL; | |
3122 | goto end; | |
e98a2d6e PP |
3123 | } |
3124 | ||
3125 | void bt_ctf_notif_iter_destroy(struct bt_ctf_notif_iter *notit) | |
3126 | { | |
3127 | BT_PUT(notit->meta.trace); | |
3128 | BT_PUT(notit->meta.stream_class); | |
3129 | BT_PUT(notit->meta.event_class); | |
3130 | BT_PUT(notit->packet); | |
af87daef | 3131 | BT_PUT(notit->stream); |
5f870343 | 3132 | BT_PUT(notit->cur_timestamp_end); |
e98a2d6e PP |
3133 | put_all_dscopes(notit); |
3134 | ||
fdf0e7a0 PP |
3135 | BT_LOGD("Destroying CTF plugin notification iterator: addr=%p", notit); |
3136 | ||
e98a2d6e | 3137 | if (notit->stack) { |
fdf0e7a0 | 3138 | BT_LOGD_STR("Destroying field stack."); |
e98a2d6e PP |
3139 | stack_destroy(notit->stack); |
3140 | } | |
3141 | ||
3142 | if (notit->btr) { | |
fdf0e7a0 | 3143 | BT_LOGD("Destroying BTR: btr-addr=%p", notit->btr); |
e98a2d6e PP |
3144 | bt_ctf_btr_destroy(notit->btr); |
3145 | } | |
3146 | ||
c44c3e70 JG |
3147 | if (notit->clock_states) { |
3148 | g_hash_table_destroy(notit->clock_states); | |
3149 | } | |
5f870343 JG |
3150 | |
3151 | if (notit->sc_field_path_caches) { | |
3152 | g_hash_table_destroy(notit->sc_field_path_caches); | |
3153 | } | |
3154 | ||
3155 | if (notit->field_overrides) { | |
3156 | g_hash_table_destroy(notit->field_overrides); | |
3157 | } | |
fdf0e7a0 | 3158 | |
e98a2d6e PP |
3159 | g_free(notit); |
3160 | } | |
3161 | ||
3162 | enum bt_ctf_notif_iter_status bt_ctf_notif_iter_get_next_notification( | |
3163 | struct bt_ctf_notif_iter *notit, | |
0982a26d | 3164 | struct bt_clock_class_priority_map *cc_prio_map, |
78586d8a | 3165 | struct bt_notification **notification) |
e98a2d6e PP |
3166 | { |
3167 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
3168 | ||
3169 | assert(notit); | |
3170 | assert(notification); | |
3171 | ||
fdf0e7a0 PP |
3172 | BT_LOGV("Getting next notification: notit-addr=%p, cc-prio-map-addr=%p", |
3173 | notit, cc_prio_map); | |
3174 | ||
e98a2d6e PP |
3175 | while (true) { |
3176 | status = handle_state(notit); | |
7cdc2bab | 3177 | if (status == BT_CTF_NOTIF_ITER_STATUS_AGAIN) { |
fdf0e7a0 | 3178 | BT_LOGV_STR("Medium returned BT_CTF_NOTIF_ITER_STATUS_AGAIN."); |
7cdc2bab MD |
3179 | goto end; |
3180 | } | |
e98a2d6e PP |
3181 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { |
3182 | if (status == BT_CTF_NOTIF_ITER_STATUS_EOF) { | |
fdf0e7a0 | 3183 | BT_LOGV_STR("Medium returned BT_CTF_NOTIF_ITER_STATUS_EOF."); |
e98a2d6e | 3184 | } else { |
fdf0e7a0 PP |
3185 | BT_LOGW("Cannot handle state: " |
3186 | "notit-addr=%p, state=%s", | |
3187 | notit, state_string(notit->state)); | |
e98a2d6e PP |
3188 | } |
3189 | goto end; | |
3190 | } | |
3191 | ||
3192 | switch (notit->state) { | |
3193 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
fdf0e7a0 | 3194 | /* notify_new_packet() logs errors */ |
e98a2d6e PP |
3195 | notify_new_packet(notit, notification); |
3196 | if (!*notification) { | |
3197 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
3198 | } | |
3199 | goto end; | |
3200 | case STATE_EMIT_NOTIF_EVENT: | |
fdf0e7a0 | 3201 | /* notify_event() logs errors */ |
0982a26d | 3202 | notify_event(notit, cc_prio_map, notification); |
e98a2d6e PP |
3203 | if (!*notification) { |
3204 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
3205 | } | |
3206 | goto end; | |
3207 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
5f870343 JG |
3208 | /* Update clock with timestamp_end field. */ |
3209 | if (notit->cur_timestamp_end) { | |
3210 | enum bt_ctf_btr_status btr_status; | |
3211 | struct bt_ctf_field_type *field_type = | |
3212 | bt_ctf_field_get_type( | |
3213 | notit->cur_timestamp_end); | |
3214 | ||
fdf0e7a0 | 3215 | assert(field_type); |
f45bfe88 PP |
3216 | btr_status = update_clock(notit, |
3217 | notit->cur_timestamp_end); | |
5f870343 JG |
3218 | BT_PUT(field_type); |
3219 | if (btr_status != BT_CTF_BTR_STATUS_OK) { | |
fdf0e7a0 PP |
3220 | BT_LOGW("Cannot update stream's clock value: " |
3221 | "notit-addr=%p", notit); | |
5f870343 JG |
3222 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
3223 | goto end; | |
3224 | } | |
3225 | } | |
3226 | ||
fdf0e7a0 | 3227 | /* notify_end_of_packet() logs errors */ |
e98a2d6e PP |
3228 | notify_end_of_packet(notit, notification); |
3229 | if (!*notification) { | |
3230 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
3231 | } | |
3232 | goto end; | |
3233 | default: | |
3234 | /* Non-emitting state: continue */ | |
3235 | break; | |
3236 | } | |
3237 | } | |
3238 | ||
3239 | end: | |
3240 | return status; | |
3241 | } | |
87187cbf PP |
3242 | |
3243 | BT_HIDDEN | |
3244 | enum bt_ctf_notif_iter_status bt_ctf_notif_iter_get_packet_header_context_fields( | |
3245 | struct bt_ctf_notif_iter *notit, | |
3246 | struct bt_ctf_field **packet_header_field, | |
3247 | struct bt_ctf_field **packet_context_field) | |
3248 | { | |
3249 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
3250 | ||
3251 | assert(notit); | |
3252 | ||
3253 | if (notit->state == STATE_EMIT_NOTIF_NEW_PACKET) { | |
3254 | /* We're already there */ | |
3255 | goto set_fields; | |
3256 | } | |
3257 | ||
3258 | while (true) { | |
3259 | status = handle_state(notit); | |
3260 | if (status == BT_CTF_NOTIF_ITER_STATUS_AGAIN) { | |
fdf0e7a0 | 3261 | BT_LOGV_STR("Medium returned BT_CTF_NOTIF_ITER_STATUS_AGAIN."); |
87187cbf PP |
3262 | goto end; |
3263 | } | |
3264 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
3265 | if (status == BT_CTF_NOTIF_ITER_STATUS_EOF) { | |
fdf0e7a0 | 3266 | BT_LOGV_STR("Medium returned BT_CTF_NOTIF_ITER_STATUS_EOF."); |
87187cbf | 3267 | } else { |
fdf0e7a0 PP |
3268 | BT_LOGW("Cannot handle state: " |
3269 | "notit-addr=%p, state=%s", | |
3270 | notit, state_string(notit->state)); | |
87187cbf PP |
3271 | } |
3272 | goto end; | |
3273 | } | |
3274 | ||
3275 | switch (notit->state) { | |
3276 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
3277 | /* | |
3278 | * Packet header and context fields are | |
3279 | * potentially decoded (or they don't exist). | |
3280 | */ | |
3281 | goto set_fields; | |
3282 | case STATE_INIT: | |
3283 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
3284 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
3285 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
3286 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
3287 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
3288 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
3289 | /* Non-emitting state: continue */ | |
3290 | break; | |
3291 | default: | |
3292 | /* | |
3293 | * We should never get past the | |
3294 | * STATE_EMIT_NOTIF_NEW_PACKET state. | |
3295 | */ | |
fdf0e7a0 PP |
3296 | BT_LOGF("Unexpected state: notit-addr=%p, state=%s", |
3297 | notit, state_string(notit->state)); | |
0fbb9a9f | 3298 | abort(); |
87187cbf PP |
3299 | } |
3300 | } | |
3301 | ||
3302 | set_fields: | |
3303 | if (packet_header_field) { | |
3304 | *packet_header_field = bt_get(notit->dscopes.trace_packet_header); | |
3305 | } | |
3306 | ||
3307 | if (packet_context_field) { | |
3308 | *packet_context_field = bt_get(notit->dscopes.stream_packet_context); | |
3309 | } | |
3310 | ||
3311 | end: | |
3312 | return status; | |
3313 | } | |
6de92955 PP |
3314 | |
3315 | BT_HIDDEN | |
3316 | void bt_ctf_notif_iter_set_medops_data(struct bt_ctf_notif_iter *notit, | |
3317 | void *medops_data) | |
3318 | { | |
3319 | assert(notit); | |
3320 | notit->medium.data = medops_data; | |
3321 | } |