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