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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 | |
bb230c9b JG |
235 | /* |
236 | * Offset, in the underlying media, of the current packet's start | |
237 | * (-1 if unknown). | |
238 | */ | |
239 | off_t cur_packet_offset; | |
240 | ||
ac0c6bdd | 241 | /* bt_ctf_clock_class to uint64_t. */ |
c44c3e70 | 242 | GHashTable *clock_states; |
5f870343 JG |
243 | |
244 | /* | |
245 | * Cache of the trace-constant field paths (event header type) | |
246 | * associated to the current trace. | |
247 | */ | |
248 | struct trace_field_path_cache trace_field_path_cache; | |
249 | ||
250 | /* | |
251 | * Field path cache associated with the current stream class. | |
252 | * Ownership of this structure belongs to the field_path_caches HT. | |
253 | */ | |
254 | struct stream_class_field_path_cache *cur_sc_field_path_cache; | |
255 | ||
256 | /* bt_ctf_stream_class to struct stream_class_field_path_cache. */ | |
257 | GHashTable *sc_field_path_caches; | |
e98a2d6e PP |
258 | }; |
259 | ||
fdf0e7a0 PP |
260 | static inline |
261 | const char *state_string(enum state state) | |
262 | { | |
263 | switch (state) { | |
264 | case STATE_INIT: | |
265 | return "STATE_INIT"; | |
266 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
267 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN"; | |
268 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
269 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE"; | |
270 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
271 | return "STATE_AFTER_TRACE_PACKET_HEADER"; | |
272 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
273 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN"; | |
274 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
275 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE"; | |
276 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
277 | return "STATE_AFTER_STREAM_PACKET_CONTEXT"; | |
278 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
279 | return "STATE_EMIT_NOTIF_NEW_PACKET"; | |
280 | case STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN: | |
281 | return "STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN"; | |
282 | case STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE: | |
283 | return "STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE"; | |
284 | case STATE_AFTER_STREAM_EVENT_HEADER: | |
285 | return "STATE_AFTER_STREAM_EVENT_HEADER"; | |
286 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN: | |
287 | return "STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN"; | |
288 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE: | |
289 | return "STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE"; | |
290 | case STATE_DSCOPE_EVENT_CONTEXT_BEGIN: | |
291 | return "STATE_DSCOPE_EVENT_CONTEXT_BEGIN"; | |
292 | case STATE_DSCOPE_EVENT_CONTEXT_CONTINUE: | |
293 | return "STATE_DSCOPE_EVENT_CONTEXT_CONTINUE"; | |
294 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
295 | return "STATE_DSCOPE_EVENT_PAYLOAD_BEGIN"; | |
296 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
297 | return "STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE"; | |
298 | case STATE_EMIT_NOTIF_EVENT: | |
299 | return "STATE_EMIT_NOTIF_EVENT"; | |
300 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
301 | return "STATE_EMIT_NOTIF_END_OF_PACKET"; | |
302 | case STATE_SKIP_PACKET_PADDING: | |
303 | return "STATE_SKIP_PACKET_PADDING"; | |
304 | default: | |
305 | return "(unknown)"; | |
306 | } | |
307 | } | |
308 | ||
2cf1d51e JG |
309 | static |
310 | int bt_ctf_notif_iter_switch_packet(struct bt_ctf_notif_iter *notit); | |
311 | ||
5f870343 JG |
312 | static |
313 | enum bt_ctf_btr_status btr_timestamp_end_cb(void *value, | |
314 | struct bt_ctf_field_type *type, void *data); | |
315 | ||
e98a2d6e PP |
316 | static |
317 | void stack_entry_free_func(gpointer data) | |
318 | { | |
319 | struct stack_entry *entry = data; | |
320 | ||
321 | bt_put(entry->base); | |
322 | g_free(entry); | |
323 | } | |
324 | ||
325 | static | |
326 | struct stack *stack_new(struct bt_ctf_notif_iter *notit) | |
327 | { | |
328 | struct stack *stack = NULL; | |
329 | ||
330 | stack = g_new0(struct stack, 1); | |
331 | if (!stack) { | |
fdf0e7a0 | 332 | BT_LOGE_STR("Failed to allocate one stack."); |
e98a2d6e PP |
333 | goto error; |
334 | } | |
335 | ||
336 | stack->entries = g_ptr_array_new_with_free_func(stack_entry_free_func); | |
337 | if (!stack->entries) { | |
fdf0e7a0 | 338 | BT_LOGE_STR("Failed to allocate a GPtrArray."); |
e98a2d6e PP |
339 | goto error; |
340 | } | |
341 | ||
fdf0e7a0 | 342 | BT_LOGD("Created stack: notit-addr=%p, stack-addr=%p", notit, stack); |
e98a2d6e | 343 | return stack; |
fdf0e7a0 | 344 | |
e98a2d6e PP |
345 | error: |
346 | g_free(stack); | |
e98a2d6e PP |
347 | return NULL; |
348 | } | |
349 | ||
350 | static | |
351 | void stack_destroy(struct stack *stack) | |
352 | { | |
353 | assert(stack); | |
fdf0e7a0 | 354 | BT_LOGD("Destroying stack: addr=%p", stack); |
e98a2d6e PP |
355 | g_ptr_array_free(stack->entries, TRUE); |
356 | g_free(stack); | |
357 | } | |
358 | ||
359 | static | |
360 | int stack_push(struct stack *stack, struct bt_ctf_field *base) | |
361 | { | |
362 | int ret = 0; | |
363 | struct stack_entry *entry; | |
e98a2d6e PP |
364 | |
365 | assert(stack); | |
366 | assert(base); | |
fdf0e7a0 PP |
367 | BT_LOGV("Pushing base field on stack: stack-addr=%p, " |
368 | "stack-size-before=%u, stack-size-after=%u", | |
369 | stack, stack->entries->len, stack->entries->len + 1); | |
e98a2d6e PP |
370 | entry = g_new0(struct stack_entry, 1); |
371 | if (!entry) { | |
fdf0e7a0 | 372 | BT_LOGE_STR("Failed to allocate one stack entry."); |
e98a2d6e PP |
373 | ret = -1; |
374 | goto end; | |
375 | } | |
376 | ||
377 | entry->base = bt_get(base); | |
378 | g_ptr_array_add(stack->entries, entry); | |
379 | ||
380 | end: | |
381 | return ret; | |
382 | } | |
383 | ||
384 | static inline | |
385 | unsigned int stack_size(struct stack *stack) | |
386 | { | |
387 | assert(stack); | |
388 | ||
389 | return stack->entries->len; | |
390 | } | |
391 | ||
392 | static | |
393 | void stack_pop(struct stack *stack) | |
394 | { | |
395 | assert(stack); | |
396 | assert(stack_size(stack)); | |
fdf0e7a0 PP |
397 | BT_LOGV("Popping from stack: " |
398 | "stack-addr=%p, stack-size-before=%u, stack-size-after=%u", | |
399 | stack, stack->entries->len, stack->entries->len - 1); | |
e98a2d6e PP |
400 | g_ptr_array_remove_index(stack->entries, stack->entries->len - 1); |
401 | } | |
402 | ||
403 | static inline | |
404 | struct stack_entry *stack_top(struct stack *stack) | |
405 | { | |
406 | assert(stack); | |
407 | assert(stack_size(stack)); | |
408 | ||
409 | return g_ptr_array_index(stack->entries, stack->entries->len - 1); | |
410 | } | |
411 | ||
412 | static inline | |
413 | bool stack_empty(struct stack *stack) | |
414 | { | |
415 | return stack_size(stack) == 0; | |
416 | } | |
417 | ||
418 | static | |
419 | void stack_clear(struct stack *stack) | |
420 | { | |
421 | assert(stack); | |
422 | ||
423 | if (!stack_empty(stack)) { | |
fdf0e7a0 PP |
424 | BT_LOGV("Clearing stack: stack-addr=%p, stack-size=%u", |
425 | stack, stack->entries->len); | |
e98a2d6e PP |
426 | g_ptr_array_remove_range(stack->entries, 0, stack_size(stack)); |
427 | } | |
428 | ||
429 | assert(stack_empty(stack)); | |
430 | } | |
431 | ||
432 | static inline | |
433 | enum bt_ctf_notif_iter_status notif_iter_status_from_m_status( | |
434 | enum bt_ctf_notif_iter_medium_status m_status) | |
435 | { | |
dc77b521 | 436 | return (int) m_status; |
e98a2d6e PP |
437 | } |
438 | ||
439 | static inline | |
440 | size_t buf_size_bits(struct bt_ctf_notif_iter *notit) | |
441 | { | |
fdf0e7a0 | 442 | return notit->buf.sz * 8; |
e98a2d6e PP |
443 | } |
444 | ||
445 | static inline | |
446 | size_t buf_available_bits(struct bt_ctf_notif_iter *notit) | |
447 | { | |
448 | return buf_size_bits(notit) - notit->buf.at; | |
449 | } | |
450 | ||
451 | static inline | |
452 | size_t packet_at(struct bt_ctf_notif_iter *notit) | |
453 | { | |
454 | return notit->buf.packet_offset + notit->buf.at; | |
455 | } | |
456 | ||
e98a2d6e PP |
457 | static inline |
458 | void buf_consume_bits(struct bt_ctf_notif_iter *notit, size_t incr) | |
459 | { | |
fdf0e7a0 PP |
460 | BT_LOGV("Advancing cursor: notit-addr=%p, cur-before=%zu, cur-after=%zu", |
461 | notit, notit->buf.at, notit->buf.at + incr); | |
e98a2d6e PP |
462 | notit->buf.at += incr; |
463 | } | |
464 | ||
e98a2d6e | 465 | static |
2cf1d51e JG |
466 | enum bt_ctf_notif_iter_status request_medium_bytes( |
467 | struct bt_ctf_notif_iter *notit) | |
e98a2d6e | 468 | { |
fdf0e7a0 PP |
469 | uint8_t *buffer_addr = NULL; |
470 | size_t buffer_sz = 0; | |
e98a2d6e PP |
471 | enum bt_ctf_notif_iter_medium_status m_status; |
472 | ||
fdf0e7a0 PP |
473 | BT_LOGV("Calling user function (request bytes): notit-addr=%p, " |
474 | "request-size=%zu", notit, notit->medium.max_request_sz); | |
e98a2d6e PP |
475 | m_status = notit->medium.medops.request_bytes( |
476 | notit->medium.max_request_sz, &buffer_addr, | |
477 | &buffer_sz, notit->medium.data); | |
fdf0e7a0 PP |
478 | BT_LOGV("User function returned: status=%s, buf-addr=%p, buf-size=%zu", |
479 | bt_ctf_notif_iter_medium_status_string(m_status), | |
480 | buffer_addr, buffer_sz); | |
e98a2d6e PP |
481 | if (m_status == BT_CTF_NOTIF_ITER_MEDIUM_STATUS_OK) { |
482 | assert(buffer_sz != 0); | |
483 | ||
484 | /* New packet offset is old one + old size (in bits) */ | |
485 | notit->buf.packet_offset += buf_size_bits(notit); | |
486 | ||
487 | /* Restart at the beginning of the new medium buffer */ | |
488 | notit->buf.at = 0; | |
bb8744a7 | 489 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
490 | |
491 | /* New medium buffer size */ | |
492 | notit->buf.sz = buffer_sz; | |
493 | ||
494 | /* New medium buffer address */ | |
495 | notit->buf.addr = buffer_addr; | |
fdf0e7a0 PP |
496 | |
497 | BT_LOGV("User function returned new bytes: " | |
498 | "packet-offset=%zu, cur=%zu, size=%zu, addr=%p", | |
499 | notit->buf.packet_offset, notit->buf.at, | |
500 | notit->buf.sz, notit->buf.addr); | |
501 | BT_LOGV_MEM(buffer_addr, buffer_sz, "Returned bytes at %p:", | |
502 | buffer_addr); | |
7116f6c0 PP |
503 | } else if (m_status == BT_CTF_NOTIF_ITER_MEDIUM_STATUS_EOF) { |
504 | struct bt_ctf_field_type *eh_ft = NULL; | |
505 | struct bt_ctf_field_type *sec_ft = NULL; | |
506 | struct bt_ctf_field_type *ec_ft = NULL; | |
507 | ||
508 | /* | |
509 | * User returned end of stream: validate that we're not | |
510 | * in the middle of a packet header, packet context, or | |
511 | * event. | |
512 | */ | |
513 | if (notit->state == STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN) { | |
514 | /* Beginning of packet: always valid */ | |
515 | goto good_state; | |
516 | } | |
517 | ||
518 | if (!notit->meta.stream_class) { | |
519 | goto bad_state; | |
520 | } | |
521 | ||
522 | eh_ft = bt_ctf_stream_class_get_event_header_type( | |
523 | notit->meta.stream_class); | |
524 | sec_ft = bt_ctf_stream_class_get_event_context_type( | |
525 | notit->meta.stream_class); | |
526 | ||
527 | if (notit->state == STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN) { | |
528 | /* | |
529 | * Beginning of event's header is only valid if | |
530 | * the packet is not supposed to have a specific | |
531 | * size (whole packet sequence has in fact only | |
532 | * one packet). | |
533 | */ | |
534 | if (notit->cur_packet_size == -1) { | |
535 | goto good_state; | |
536 | } | |
537 | } | |
538 | ||
539 | if (notit->state == STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN) { | |
540 | /* | |
541 | * Beginning of event's stream event context is | |
542 | * only valid if the packet is not supposed to | |
543 | * have a specific size (whole packet sequence | |
544 | * has in fact only one packet), and there's no | |
545 | * event header. | |
546 | */ | |
547 | if (notit->cur_packet_size == -1 && !eh_ft) { | |
548 | goto good_state; | |
549 | } | |
550 | } | |
551 | ||
552 | if (!notit->meta.event_class) { | |
553 | goto bad_state; | |
554 | } | |
555 | ||
556 | ec_ft = bt_ctf_event_class_get_context_type( | |
557 | notit->meta.event_class); | |
558 | ||
559 | if (notit->state == STATE_DSCOPE_EVENT_CONTEXT_BEGIN) { | |
560 | /* | |
561 | * Beginning of event's context is only valid if | |
562 | * the packet is not supposed to have a specific | |
563 | * size (whole packet sequence has in fact only | |
564 | * one packet), and there's no event header and | |
565 | * no stream event context. | |
566 | */ | |
567 | if (notit->cur_packet_size == -1 && !eh_ft && !sec_ft) { | |
568 | goto good_state; | |
569 | } | |
570 | } | |
571 | ||
572 | if (notit->state == STATE_DSCOPE_EVENT_PAYLOAD_BEGIN) { | |
573 | /* | |
574 | * Beginning of event's context is only valid if | |
575 | * the packet is not supposed to have a specific | |
576 | * size (whole packet sequence has in fact only | |
577 | * one packet), and there's no event header, no | |
578 | * stream event context, and no event context. | |
579 | */ | |
580 | if (notit->cur_packet_size == -1 && !eh_ft && !sec_ft && | |
581 | !ec_ft) { | |
582 | goto good_state; | |
583 | } | |
584 | } | |
585 | ||
586 | bad_state: | |
587 | /* All other states are invalid */ | |
588 | BT_LOGW("User function returned %s, but notification iterator is in an unexpected state: " | |
589 | "state=%s", | |
590 | bt_ctf_notif_iter_medium_status_string(m_status), | |
591 | state_string(notit->state)); | |
592 | m_status = BT_CTF_NOTIF_ITER_MEDIUM_STATUS_ERROR; | |
593 | ||
594 | good_state: | |
595 | bt_put(eh_ft); | |
596 | bt_put(sec_ft); | |
597 | bt_put(ec_ft); | |
fdf0e7a0 PP |
598 | } else if (m_status < 0) { |
599 | BT_LOGW("User function failed: status=%s", | |
600 | bt_ctf_notif_iter_medium_status_string(m_status)); | |
e98a2d6e PP |
601 | } |
602 | ||
603 | return notif_iter_status_from_m_status(m_status); | |
604 | } | |
605 | ||
606 | static inline | |
607 | enum bt_ctf_notif_iter_status buf_ensure_available_bits( | |
608 | struct bt_ctf_notif_iter *notit) | |
609 | { | |
610 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
611 | ||
612 | if (buf_available_bits(notit) == 0) { | |
613 | /* | |
614 | * This _cannot_ return BT_CTF_NOTIF_ITER_STATUS_OK | |
615 | * _and_ no bits. | |
616 | */ | |
617 | status = request_medium_bytes(notit); | |
618 | } | |
619 | ||
620 | return status; | |
621 | } | |
622 | ||
623 | static | |
624 | enum bt_ctf_notif_iter_status read_dscope_begin_state( | |
625 | struct bt_ctf_notif_iter *notit, | |
626 | struct bt_ctf_field_type *dscope_field_type, | |
627 | enum state done_state, enum state continue_state, | |
628 | struct bt_ctf_field **dscope_field) | |
629 | { | |
630 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
631 | enum bt_ctf_btr_status btr_status; | |
632 | size_t consumed_bits; | |
633 | ||
634 | status = buf_ensure_available_bits(notit); | |
635 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
fdf0e7a0 PP |
636 | if (status < 0) { |
637 | BT_LOGW("Cannot ensure that buffer has at least one byte: " | |
638 | "notif-addr=%p, status=%s", | |
639 | notit, bt_ctf_notif_iter_status_string(status)); | |
640 | } else { | |
641 | BT_LOGV("Cannot ensure that buffer has at least one byte: " | |
642 | "notif-addr=%p, status=%s", | |
643 | notit, bt_ctf_notif_iter_status_string(status)); | |
644 | } | |
645 | ||
e98a2d6e PP |
646 | goto end; |
647 | } | |
648 | ||
649 | bt_put(*dscope_field); | |
650 | notit->cur_dscope_field = dscope_field; | |
fdf0e7a0 PP |
651 | BT_LOGV("Starting BTR: notit-addr=%p, btr-addr=%p, ft-addr=%p", |
652 | notit, notit->btr, dscope_field_type); | |
e98a2d6e PP |
653 | consumed_bits = bt_ctf_btr_start(notit->btr, dscope_field_type, |
654 | notit->buf.addr, notit->buf.at, packet_at(notit), | |
655 | notit->buf.sz, &btr_status); | |
fdf0e7a0 | 656 | BT_LOGV("BTR consumed bits: size=%zu", consumed_bits); |
e98a2d6e PP |
657 | |
658 | switch (btr_status) { | |
659 | case BT_CTF_BTR_STATUS_OK: | |
660 | /* type was read completely */ | |
fdf0e7a0 | 661 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
662 | notit->state = done_state; |
663 | break; | |
664 | case BT_CTF_BTR_STATUS_EOF: | |
fdf0e7a0 | 665 | BT_LOGV_STR("BTR needs more data to decode field completely."); |
e98a2d6e PP |
666 | notit->state = continue_state; |
667 | break; | |
668 | default: | |
fdf0e7a0 PP |
669 | BT_LOGW("BTR failed to start: notit-addr=%p, btr-addr=%p, " |
670 | "status=%s", notit, notit->btr, | |
671 | bt_ctf_btr_status_string(btr_status)); | |
e98a2d6e PP |
672 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
673 | goto end; | |
674 | } | |
675 | ||
676 | /* Consume bits now since we know we're not in an error state */ | |
677 | buf_consume_bits(notit, consumed_bits); | |
678 | ||
679 | end: | |
680 | return status; | |
681 | } | |
682 | ||
683 | static | |
684 | enum bt_ctf_notif_iter_status read_dscope_continue_state( | |
685 | struct bt_ctf_notif_iter *notit, enum state done_state) | |
686 | { | |
687 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
688 | enum bt_ctf_btr_status btr_status; | |
689 | size_t consumed_bits; | |
690 | ||
691 | status = buf_ensure_available_bits(notit); | |
692 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
fdf0e7a0 PP |
693 | if (status < 0) { |
694 | BT_LOGW("Cannot ensure that buffer has at least one byte: " | |
695 | "notif-addr=%p, status=%s", | |
696 | notit, bt_ctf_notif_iter_status_string(status)); | |
697 | } else { | |
698 | BT_LOGV("Cannot ensure that buffer has at least one byte: " | |
699 | "notif-addr=%p, status=%s", | |
700 | notit, bt_ctf_notif_iter_status_string(status)); | |
701 | } | |
702 | ||
e98a2d6e PP |
703 | goto end; |
704 | } | |
705 | ||
fdf0e7a0 PP |
706 | BT_LOGV("Continuing BTR: notit-addr=%p, btr-addr=%p", |
707 | notit, notit->btr); | |
e98a2d6e | 708 | consumed_bits = bt_ctf_btr_continue(notit->btr, notit->buf.addr, |
fdf0e7a0 PP |
709 | notit->buf.sz, &btr_status); |
710 | BT_LOGV("BTR consumed bits: size=%zu", consumed_bits); | |
e98a2d6e PP |
711 | |
712 | switch (btr_status) { | |
713 | case BT_CTF_BTR_STATUS_OK: | |
78586d8a | 714 | /* Type was read completely. */ |
fdf0e7a0 | 715 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
716 | notit->state = done_state; |
717 | break; | |
718 | case BT_CTF_BTR_STATUS_EOF: | |
78586d8a | 719 | /* Stay in this continue state. */ |
fdf0e7a0 | 720 | BT_LOGV_STR("BTR needs more data to decode field completely."); |
e98a2d6e PP |
721 | break; |
722 | default: | |
fdf0e7a0 PP |
723 | BT_LOGW("BTR failed to continue: notit-addr=%p, btr-addr=%p, " |
724 | "status=%s", notit, notit->btr, | |
725 | bt_ctf_btr_status_string(btr_status)); | |
e98a2d6e PP |
726 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
727 | goto end; | |
728 | } | |
729 | ||
78586d8a | 730 | /* Consume bits now since we know we're not in an error state. */ |
e98a2d6e | 731 | buf_consume_bits(notit, consumed_bits); |
e98a2d6e PP |
732 | end: |
733 | return status; | |
734 | } | |
735 | ||
736 | static | |
737 | void put_event_dscopes(struct bt_ctf_notif_iter *notit) | |
738 | { | |
fdf0e7a0 | 739 | BT_LOGV_STR("Putting event header field."); |
e98a2d6e | 740 | BT_PUT(notit->dscopes.stream_event_header); |
fdf0e7a0 | 741 | BT_LOGV_STR("Putting stream event context field."); |
e98a2d6e | 742 | BT_PUT(notit->dscopes.stream_event_context); |
fdf0e7a0 | 743 | BT_LOGV_STR("Putting event context field."); |
e98a2d6e | 744 | BT_PUT(notit->dscopes.event_context); |
fdf0e7a0 | 745 | BT_LOGV_STR("Putting event payload field."); |
e98a2d6e PP |
746 | BT_PUT(notit->dscopes.event_payload); |
747 | } | |
748 | ||
749 | static | |
750 | void put_all_dscopes(struct bt_ctf_notif_iter *notit) | |
751 | { | |
fdf0e7a0 | 752 | BT_LOGV_STR("Putting packet header field."); |
e98a2d6e | 753 | BT_PUT(notit->dscopes.trace_packet_header); |
fdf0e7a0 | 754 | BT_LOGV_STR("Putting packet context field."); |
e98a2d6e PP |
755 | BT_PUT(notit->dscopes.stream_packet_context); |
756 | put_event_dscopes(notit); | |
757 | } | |
758 | ||
759 | static | |
760 | enum bt_ctf_notif_iter_status read_packet_header_begin_state( | |
761 | struct bt_ctf_notif_iter *notit) | |
762 | { | |
2cf1d51e JG |
763 | struct bt_ctf_field_type *packet_header_type = NULL; |
764 | enum bt_ctf_notif_iter_status ret = BT_CTF_NOTIF_ITER_STATUS_OK; | |
e98a2d6e | 765 | |
2cf1d51e | 766 | if (bt_ctf_notif_iter_switch_packet(notit)) { |
fdf0e7a0 | 767 | BT_LOGW("Cannot switch packet: notit-addr=%p", notit); |
2cf1d51e JG |
768 | ret = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
769 | goto end; | |
770 | } | |
e98a2d6e | 771 | |
2cf1d51e | 772 | /* Packet header type is common to the whole trace. */ |
e98a2d6e | 773 | packet_header_type = bt_ctf_trace_get_packet_header_type( |
78586d8a | 774 | notit->meta.trace); |
e98a2d6e | 775 | if (!packet_header_type) { |
835b2d10 | 776 | notit->state = STATE_AFTER_TRACE_PACKET_HEADER; |
e98a2d6e PP |
777 | goto end; |
778 | } | |
779 | ||
fdf0e7a0 PP |
780 | BT_LOGV("Decoding packet header field:" |
781 | "notit-addr=%p, trace-addr=%p, trace-name=\"%s\", ft-addr=%p", | |
782 | notit, notit->meta.trace, | |
783 | bt_ctf_trace_get_name(notit->meta.trace), packet_header_type); | |
2cf1d51e | 784 | ret = read_dscope_begin_state(notit, packet_header_type, |
fdf0e7a0 PP |
785 | STATE_AFTER_TRACE_PACKET_HEADER, |
786 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
787 | ¬it->dscopes.trace_packet_header); | |
788 | if (ret < 0) { | |
789 | BT_LOGW("Cannot decode packet header field: " | |
790 | "notit-addr=%p, trace-addr=%p, " | |
791 | "trace-name=\"%s\", ft-addr=%p", | |
792 | notit, notit->meta.trace, | |
793 | bt_ctf_trace_get_name(notit->meta.trace), | |
794 | packet_header_type); | |
795 | } | |
e98a2d6e PP |
796 | end: |
797 | BT_PUT(packet_header_type); | |
2cf1d51e | 798 | return ret; |
e98a2d6e PP |
799 | } |
800 | ||
801 | static | |
802 | enum bt_ctf_notif_iter_status read_packet_header_continue_state( | |
803 | struct bt_ctf_notif_iter *notit) | |
804 | { | |
805 | return read_dscope_continue_state(notit, | |
78586d8a | 806 | STATE_AFTER_TRACE_PACKET_HEADER); |
e98a2d6e PP |
807 | } |
808 | ||
809 | static inline | |
810 | bool is_struct_type(struct bt_ctf_field_type *field_type) | |
811 | { | |
78586d8a | 812 | return bt_ctf_field_type_get_type_id(field_type) == |
1487a16a | 813 | BT_CTF_FIELD_TYPE_ID_STRUCT; |
e98a2d6e PP |
814 | } |
815 | ||
816 | static inline | |
817 | bool is_variant_type(struct bt_ctf_field_type *field_type) | |
818 | { | |
78586d8a | 819 | return bt_ctf_field_type_get_type_id(field_type) == |
1487a16a | 820 | BT_CTF_FIELD_TYPE_ID_VARIANT; |
e98a2d6e PP |
821 | } |
822 | ||
5f870343 JG |
823 | static |
824 | struct stream_class_field_path_cache * | |
825 | create_stream_class_field_path_cache_entry( | |
826 | struct bt_ctf_notif_iter *notit, | |
827 | struct bt_ctf_stream_class *stream_class) | |
828 | { | |
829 | int v = -1; | |
830 | int id = -1; | |
831 | int timestamp_end = -1; | |
832 | int packet_size = -1; | |
833 | int content_size = -1; | |
834 | struct stream_class_field_path_cache *cache_entry = g_new0( | |
835 | struct stream_class_field_path_cache, 1); | |
836 | struct bt_ctf_field_type *event_header = NULL, *packet_context = NULL; | |
837 | ||
838 | if (!cache_entry) { | |
fdf0e7a0 | 839 | BT_LOGE_STR("Failed to allocate one stream class field path cache."); |
5f870343 JG |
840 | goto end; |
841 | } | |
842 | ||
843 | event_header = bt_ctf_stream_class_get_event_header_type(stream_class); | |
844 | if (event_header && bt_ctf_field_type_is_structure(event_header)) { | |
845 | int i, count; | |
846 | ||
847 | count = bt_ctf_field_type_structure_get_field_count( | |
fdf0e7a0 PP |
848 | event_header); |
849 | assert(count >= 0); | |
850 | ||
5f870343 JG |
851 | for (i = 0; i < count; i++) { |
852 | int ret; | |
853 | const char *name; | |
854 | ||
855 | ret = bt_ctf_field_type_structure_get_field( | |
856 | event_header, &name, NULL, i); | |
857 | if (ret) { | |
fdf0e7a0 PP |
858 | BT_LOGE("Cannot get event header structure field type's field: " |
859 | "notit-addr=%p, stream-class-addr=%p, " | |
860 | "stream-class-name=\"%s\", " | |
861 | "stream-class-id=%" PRId64 ", " | |
862 | "ft-addr=%p, index=%d", | |
863 | notit, stream_class, | |
864 | bt_ctf_stream_class_get_name(stream_class), | |
865 | bt_ctf_stream_class_get_id(stream_class), | |
866 | event_header, i); | |
5f870343 JG |
867 | goto error; |
868 | } | |
869 | ||
870 | if (v != -1 && id != -1) { | |
871 | break; | |
872 | } | |
fdf0e7a0 PP |
873 | |
874 | if (v == -1 && strcmp(name, "v") == 0) { | |
5f870343 JG |
875 | v = i; |
876 | } else if (id == -1 && !strcmp(name, "id")) { | |
877 | id = i; | |
878 | } | |
879 | } | |
880 | } | |
881 | ||
882 | packet_context = bt_ctf_stream_class_get_packet_context_type( | |
883 | stream_class); | |
884 | if (packet_context && bt_ctf_field_type_is_structure(packet_context)) { | |
885 | int i, count; | |
886 | ||
887 | count = bt_ctf_field_type_structure_get_field_count( | |
fdf0e7a0 PP |
888 | packet_context); |
889 | assert(count >= 0); | |
890 | ||
5f870343 JG |
891 | for (i = 0; i < count; i++) { |
892 | int ret; | |
893 | const char *name; | |
894 | struct bt_ctf_field_type *field_type; | |
895 | ||
896 | if (timestamp_end != -1 && packet_size != -1 && | |
897 | content_size != -1) { | |
898 | break; | |
899 | } | |
900 | ||
901 | ret = bt_ctf_field_type_structure_get_field( | |
902 | packet_context, &name, &field_type, i); | |
903 | if (ret) { | |
fdf0e7a0 PP |
904 | BT_LOGE("Cannot get packet context structure field type's field: " |
905 | "notit-addr=%p, stream-class-addr=%p, " | |
906 | "stream-class-name=\"%s\", " | |
907 | "stream-class-id=%" PRId64 ", " | |
908 | "ft-addr=%p, index=%d", | |
909 | notit, stream_class, | |
910 | bt_ctf_stream_class_get_name(stream_class), | |
911 | bt_ctf_stream_class_get_id(stream_class), | |
912 | event_header, i); | |
5f870343 JG |
913 | goto error; |
914 | } | |
915 | ||
916 | if (timestamp_end == -1 && | |
fdf0e7a0 | 917 | strcmp(name, "timestamp_end") == 0) { |
5f870343 JG |
918 | struct field_cb_override *override = g_new0( |
919 | struct field_cb_override, 1); | |
920 | ||
921 | if (!override) { | |
922 | BT_PUT(field_type); | |
923 | goto error; | |
924 | } | |
925 | ||
926 | override->func = btr_timestamp_end_cb; | |
927 | override->data = notit; | |
5f870343 | 928 | g_hash_table_insert(notit->field_overrides, |
fdf0e7a0 | 929 | bt_get(field_type), override); |
5f870343 JG |
930 | timestamp_end = i; |
931 | } else if (packet_size == -1 && | |
932 | !strcmp(name, "packet_size")) { | |
933 | packet_size = i; | |
934 | } else if (content_size == -1 && | |
935 | !strcmp(name, "content_size")) { | |
936 | content_size = i; | |
937 | } | |
938 | BT_PUT(field_type); | |
939 | } | |
940 | } | |
941 | ||
942 | cache_entry->v = v; | |
943 | cache_entry->id = id; | |
944 | cache_entry->timestamp_end = timestamp_end; | |
945 | cache_entry->packet_size = packet_size; | |
946 | cache_entry->content_size = content_size; | |
947 | end: | |
948 | BT_PUT(event_header); | |
949 | BT_PUT(packet_context); | |
950 | return cache_entry; | |
951 | error: | |
952 | g_free(cache_entry); | |
953 | cache_entry = NULL; | |
954 | goto end; | |
955 | } | |
956 | ||
957 | static | |
958 | struct stream_class_field_path_cache *get_stream_class_field_path_cache( | |
959 | struct bt_ctf_notif_iter *notit, | |
960 | struct bt_ctf_stream_class *stream_class) | |
961 | { | |
962 | bool cache_entry_found; | |
963 | struct stream_class_field_path_cache *cache_entry; | |
964 | ||
965 | cache_entry_found = g_hash_table_lookup_extended( | |
966 | notit->sc_field_path_caches, | |
967 | stream_class, NULL, (gpointer) &cache_entry); | |
968 | if (unlikely(!cache_entry_found)) { | |
969 | cache_entry = create_stream_class_field_path_cache_entry(notit, | |
fdf0e7a0 | 970 | stream_class); |
5f870343 | 971 | g_hash_table_insert(notit->sc_field_path_caches, |
fdf0e7a0 | 972 | bt_get(stream_class), (gpointer) cache_entry); |
5f870343 JG |
973 | } |
974 | ||
975 | return cache_entry; | |
976 | } | |
977 | ||
e98a2d6e | 978 | static inline |
835b2d10 JG |
979 | enum bt_ctf_notif_iter_status set_current_stream_class( |
980 | struct bt_ctf_notif_iter *notit) | |
e98a2d6e PP |
981 | { |
982 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
5f870343 | 983 | struct bt_ctf_field_type *packet_header_type = NULL; |
e98a2d6e | 984 | struct bt_ctf_field_type *stream_id_field_type = NULL; |
c937c615 | 985 | struct bt_ctf_stream_class *new_stream_class = NULL; |
e98a2d6e PP |
986 | uint64_t stream_id; |
987 | ||
5f870343 JG |
988 | /* Clear the current stream class field path cache. */ |
989 | notit->cur_sc_field_path_cache = NULL; | |
990 | ||
e98a2d6e PP |
991 | /* Is there any "stream_id" field in the packet header? */ |
992 | packet_header_type = bt_ctf_trace_get_packet_header_type( | |
fdf0e7a0 | 993 | notit->meta.trace); |
e98a2d6e | 994 | if (!packet_header_type) { |
fdf0e7a0 PP |
995 | /* |
996 | * No packet header, therefore no `stream_id` field, | |
997 | * therefore only one stream class. | |
998 | */ | |
999 | goto single_stream_class; | |
e98a2d6e PP |
1000 | } |
1001 | ||
1002 | assert(is_struct_type(packet_header_type)); | |
1003 | ||
1004 | // TODO: optimalize! | |
1005 | stream_id_field_type = | |
fdf0e7a0 PP |
1006 | bt_ctf_field_type_structure_get_field_type_by_name( |
1007 | packet_header_type, "stream_id"); | |
e98a2d6e PP |
1008 | if (stream_id_field_type) { |
1009 | /* Find appropriate stream class using current stream ID */ | |
e98a2d6e | 1010 | int ret; |
5f870343 | 1011 | struct bt_ctf_field *stream_id_field = NULL; |
e98a2d6e PP |
1012 | |
1013 | assert(notit->dscopes.trace_packet_header); | |
1014 | ||
1015 | // TODO: optimalize! | |
1016 | stream_id_field = bt_ctf_field_structure_get_field( | |
78586d8a | 1017 | notit->dscopes.trace_packet_header, "stream_id"); |
e98a2d6e PP |
1018 | assert(stream_id_field); |
1019 | ret = bt_ctf_field_unsigned_integer_get_value( | |
78586d8a | 1020 | stream_id_field, &stream_id); |
e98a2d6e PP |
1021 | assert(!ret); |
1022 | BT_PUT(stream_id_field); | |
1023 | } else { | |
fdf0e7a0 | 1024 | single_stream_class: |
e98a2d6e PP |
1025 | /* Only one stream: pick the first stream class */ |
1026 | assert(bt_ctf_trace_get_stream_class_count( | |
78586d8a | 1027 | notit->meta.trace) == 1); |
e98a2d6e PP |
1028 | stream_id = 0; |
1029 | } | |
1030 | ||
fdf0e7a0 PP |
1031 | BT_LOGV("Found stream class ID to use: notit-addr=%p, " |
1032 | "stream-class-id=%" PRIu64 ", " | |
1033 | "trace-addr=%p, trace-name=\"%s\"", | |
1034 | notit, stream_id, notit->meta.trace, | |
1035 | bt_ctf_trace_get_name(notit->meta.trace)); | |
1036 | ||
c937c615 | 1037 | new_stream_class = bt_ctf_trace_get_stream_class_by_id( |
fdf0e7a0 | 1038 | notit->meta.trace, stream_id); |
c937c615 | 1039 | if (!new_stream_class) { |
fdf0e7a0 PP |
1040 | BT_LOGW("No stream class with ID of stream class ID to use in trace: " |
1041 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " | |
1042 | "trace-addr=%p, trace-name=\"%s\"", | |
1043 | notit, stream_id, notit->meta.trace, | |
1044 | bt_ctf_trace_get_name(notit->meta.trace)); | |
e98a2d6e PP |
1045 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1046 | goto end; | |
1047 | } | |
1048 | ||
c937c615 PP |
1049 | if (notit->meta.stream_class) { |
1050 | if (new_stream_class != notit->meta.stream_class) { | |
1051 | BT_LOGW("Two packets refer to two different stream classes within the same packet sequence: " | |
1052 | "notit-addr=%p, prev-stream-class-addr=%p, " | |
1053 | "prev-stream-class-name=\"%s\", " | |
1054 | "prev-stream-class-id=%" PRId64 ", " | |
1055 | "next-stream-class-addr=%p, " | |
1056 | "next-stream-class-name=\"%s\", " | |
1057 | "next-stream-class-id=%" PRId64 ", " | |
1058 | "trace-addr=%p, trace-name=\"%s\"", | |
1059 | notit, notit->meta.stream_class, | |
1060 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1061 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1062 | new_stream_class, | |
1063 | bt_ctf_stream_class_get_name(new_stream_class), | |
1064 | bt_ctf_stream_class_get_id(new_stream_class), | |
1065 | notit->meta.trace, | |
1066 | bt_ctf_trace_get_name(notit->meta.trace)); | |
1067 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
1068 | goto end; | |
1069 | } | |
1070 | } else { | |
1071 | BT_MOVE(notit->meta.stream_class, new_stream_class); | |
1072 | } | |
1073 | ||
fdf0e7a0 PP |
1074 | BT_LOGV("Set current stream class: " |
1075 | "notit-addr=%p, stream-class-addr=%p, " | |
1076 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1077 | notit, notit->meta.stream_class, | |
1078 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1079 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
1080 | ||
5f870343 JG |
1081 | /* |
1082 | * Retrieve (or lazily create) the current stream class field path | |
1083 | * cache. | |
1084 | */ | |
1085 | notit->cur_sc_field_path_cache = get_stream_class_field_path_cache( | |
fdf0e7a0 | 1086 | notit, notit->meta.stream_class); |
5f870343 | 1087 | if (!notit->cur_sc_field_path_cache) { |
fdf0e7a0 PP |
1088 | BT_LOGW("Cannot retrieve stream class field path from cache: " |
1089 | "notit-addr=%p, stream-class-addr=%p, " | |
1090 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1091 | notit, notit->meta.stream_class, | |
1092 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1093 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
5f870343 JG |
1094 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1095 | goto end; | |
1096 | } | |
e98a2d6e PP |
1097 | end: |
1098 | BT_PUT(packet_header_type); | |
1099 | BT_PUT(stream_id_field_type); | |
c937c615 | 1100 | bt_put(new_stream_class); |
e98a2d6e PP |
1101 | return status; |
1102 | } | |
1103 | ||
1104 | static | |
1105 | enum bt_ctf_notif_iter_status after_packet_header_state( | |
1106 | struct bt_ctf_notif_iter *notit) | |
1107 | { | |
1108 | enum bt_ctf_notif_iter_status status; | |
1109 | ||
1110 | status = set_current_stream_class(notit); | |
1111 | if (status == BT_CTF_NOTIF_ITER_STATUS_OK) { | |
1112 | notit->state = STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN; | |
1113 | } | |
1114 | ||
1115 | return status; | |
1116 | } | |
1117 | ||
1118 | static | |
1119 | enum bt_ctf_notif_iter_status read_packet_context_begin_state( | |
1120 | struct bt_ctf_notif_iter *notit) | |
1121 | { | |
1122 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1123 | struct bt_ctf_field_type *packet_context_type; | |
1124 | ||
1125 | assert(notit->meta.stream_class); | |
1126 | packet_context_type = bt_ctf_stream_class_get_packet_context_type( | |
fdf0e7a0 | 1127 | notit->meta.stream_class); |
e98a2d6e | 1128 | if (!packet_context_type) { |
fdf0e7a0 PP |
1129 | BT_LOGV("No packet packet context field type in stream class: continuing: " |
1130 | "notit-addr=%p, stream-class-addr=%p, " | |
1131 | "stream-class-name=\"%s\", stream-class-id=%" PRId64, | |
1132 | notit, notit->meta.stream_class, | |
1133 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1134 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
835b2d10 | 1135 | notit->state = STATE_AFTER_STREAM_PACKET_CONTEXT; |
e98a2d6e PP |
1136 | goto end; |
1137 | } | |
1138 | ||
fdf0e7a0 PP |
1139 | BT_LOGV("Decoding packet context field: " |
1140 | "notit-addr=%p, stream-class-addr=%p, " | |
1141 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1142 | "ft-addr=%p", | |
1143 | notit, notit->meta.stream_class, | |
1144 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1145 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1146 | packet_context_type); | |
e98a2d6e | 1147 | status = read_dscope_begin_state(notit, packet_context_type, |
fdf0e7a0 PP |
1148 | STATE_AFTER_STREAM_PACKET_CONTEXT, |
1149 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
1150 | ¬it->dscopes.stream_packet_context); | |
1151 | if (status < 0) { | |
1152 | BT_LOGW("Cannot decode packet context field: " | |
1153 | "notit-addr=%p, stream-class-addr=%p, " | |
1154 | "stream-class-name=\"%s\", " | |
1155 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1156 | notit, notit->meta.stream_class, | |
1157 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1158 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1159 | packet_context_type); | |
1160 | } | |
e98a2d6e PP |
1161 | |
1162 | end: | |
1163 | BT_PUT(packet_context_type); | |
e98a2d6e PP |
1164 | return status; |
1165 | } | |
1166 | ||
1167 | static | |
1168 | enum bt_ctf_notif_iter_status read_packet_context_continue_state( | |
1169 | struct bt_ctf_notif_iter *notit) | |
1170 | { | |
1171 | return read_dscope_continue_state(notit, | |
78586d8a | 1172 | STATE_AFTER_STREAM_PACKET_CONTEXT); |
e98a2d6e PP |
1173 | } |
1174 | ||
78586d8a | 1175 | static |
e98a2d6e PP |
1176 | enum bt_ctf_notif_iter_status set_current_packet_content_sizes( |
1177 | struct bt_ctf_notif_iter *notit) | |
1178 | { | |
1179 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1180 | struct bt_ctf_field *packet_size_field = NULL; | |
1181 | struct bt_ctf_field *content_size_field = NULL; | |
a27839b0 | 1182 | uint64_t content_size = -1ULL, packet_size = -1ULL; |
e98a2d6e | 1183 | |
89b08333 MD |
1184 | if (!notit->dscopes.stream_packet_context) { |
1185 | goto end; | |
1186 | } | |
e98a2d6e | 1187 | |
e98a2d6e | 1188 | packet_size_field = bt_ctf_field_structure_get_field( |
fdf0e7a0 | 1189 | notit->dscopes.stream_packet_context, "packet_size"); |
e98a2d6e | 1190 | content_size_field = bt_ctf_field_structure_get_field( |
fdf0e7a0 | 1191 | notit->dscopes.stream_packet_context, "content_size"); |
e98a2d6e PP |
1192 | if (packet_size_field) { |
1193 | int ret = bt_ctf_field_unsigned_integer_get_value( | |
fdf0e7a0 | 1194 | packet_size_field, &packet_size); |
e98a2d6e | 1195 | |
fdf0e7a0 | 1196 | assert(ret == 0); |
e98a2d6e | 1197 | if (packet_size == 0) { |
fdf0e7a0 PP |
1198 | BT_LOGW("Invalid packet size: packet context field indicates packet size is zero: " |
1199 | "notit-addr=%p, packet-context-field-addr=%p", | |
1200 | notit, notit->dscopes.stream_packet_context); | |
e98a2d6e PP |
1201 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1202 | goto end; | |
1203 | } else if ((packet_size % 8) != 0) { | |
fdf0e7a0 PP |
1204 | BT_LOGW("Invalid packet size: packet context field indicates packet size is not a multiple of 8: " |
1205 | "notit-addr=%p, packet-context-field-addr=%p, " | |
1206 | "packet-size=%" PRIu64, | |
1207 | notit, notit->dscopes.stream_packet_context, | |
1208 | packet_size); | |
e98a2d6e PP |
1209 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1210 | goto end; | |
1211 | } | |
1212 | } | |
78586d8a | 1213 | |
e98a2d6e PP |
1214 | if (content_size_field) { |
1215 | int ret = bt_ctf_field_unsigned_integer_get_value( | |
1216 | content_size_field, &content_size); | |
78586d8a | 1217 | |
fdf0e7a0 | 1218 | assert(ret == 0); |
e98a2d6e PP |
1219 | } else { |
1220 | content_size = packet_size; | |
1221 | } | |
1222 | ||
fdf0e7a0 PP |
1223 | if (content_size > packet_size) { |
1224 | BT_LOGW("Invalid packet or content size: packet context field indicates content size is greater than packet size: " | |
1225 | "notit-addr=%p, packet-context-field-addr=%p, " | |
1226 | "packet-size=%" PRIu64 ", content-size=%" PRIu64, | |
1227 | notit, notit->dscopes.stream_packet_context, | |
1228 | packet_size, content_size); | |
1229 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
1230 | goto end; | |
1231 | } | |
1232 | ||
a27839b0 MD |
1233 | if (packet_size != -1ULL) { |
1234 | notit->cur_packet_size = packet_size; | |
1235 | } else { | |
1236 | /* | |
1237 | * Use the content size as packet size indicator if the | |
1238 | * packet size field is missing. This means there is no | |
1239 | * padding in this stream. | |
1240 | */ | |
1241 | notit->cur_packet_size = content_size; | |
1242 | } | |
e98a2d6e | 1243 | notit->cur_content_size = content_size; |
fdf0e7a0 PP |
1244 | BT_LOGV("Set current packet and content sizes: " |
1245 | "notit-addr=%p, packet-size=%" PRIu64 ", content-size=%" PRIu64, | |
1246 | notit, packet_size, content_size); | |
e98a2d6e PP |
1247 | end: |
1248 | BT_PUT(packet_size_field); | |
1249 | BT_PUT(content_size_field); | |
e98a2d6e PP |
1250 | return status; |
1251 | } | |
1252 | ||
1253 | static | |
1254 | enum bt_ctf_notif_iter_status after_packet_context_state( | |
1255 | struct bt_ctf_notif_iter *notit) | |
1256 | { | |
1257 | enum bt_ctf_notif_iter_status status; | |
1258 | ||
1259 | status = set_current_packet_content_sizes(notit); | |
1260 | if (status == BT_CTF_NOTIF_ITER_STATUS_OK) { | |
1261 | notit->state = STATE_EMIT_NOTIF_NEW_PACKET; | |
1262 | } | |
1263 | ||
1264 | return status; | |
1265 | } | |
1266 | ||
1267 | static | |
1268 | enum bt_ctf_notif_iter_status read_event_header_begin_state( | |
1269 | struct bt_ctf_notif_iter *notit) | |
1270 | { | |
1271 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1272 | struct bt_ctf_field_type *event_header_type = NULL; | |
1273 | ||
9b876b7b PP |
1274 | /* Reset the position of the last event header */ |
1275 | notit->buf.last_eh_at = notit->buf.at; | |
1276 | ||
e98a2d6e PP |
1277 | /* Check if we have some content left */ |
1278 | if (notit->cur_content_size >= 0) { | |
1279 | if (packet_at(notit) == notit->cur_content_size) { | |
1280 | /* No more events! */ | |
fdf0e7a0 PP |
1281 | BT_LOGV("Reached end of packet: notit-addr=%p, " |
1282 | "cur=%zu", notit, packet_at(notit)); | |
e98a2d6e PP |
1283 | notit->state = STATE_EMIT_NOTIF_END_OF_PACKET; |
1284 | goto end; | |
1285 | } else if (packet_at(notit) > notit->cur_content_size) { | |
1286 | /* That's not supposed to happen */ | |
fdf0e7a0 | 1287 | BT_LOGV("Before decoding event header field: cursor is passed the packet's content: " |
41342c71 | 1288 | "notit-addr=%p, content-size=%" PRId64 ", " |
fdf0e7a0 PP |
1289 | "cur=%zu", notit, notit->cur_content_size, |
1290 | packet_at(notit)); | |
e98a2d6e PP |
1291 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1292 | goto end; | |
1293 | } | |
1294 | } | |
1295 | ||
1296 | event_header_type = bt_ctf_stream_class_get_event_header_type( | |
1297 | notit->meta.stream_class); | |
1298 | if (!event_header_type) { | |
835b2d10 | 1299 | notit->state = STATE_AFTER_STREAM_EVENT_HEADER; |
e98a2d6e PP |
1300 | goto end; |
1301 | } | |
1302 | ||
1303 | put_event_dscopes(notit); | |
fdf0e7a0 PP |
1304 | BT_LOGV("Decoding event header field: " |
1305 | "notit-addr=%p, stream-class-addr=%p, " | |
1306 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1307 | "ft-addr=%p", | |
1308 | notit, notit->meta.stream_class, | |
1309 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1310 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1311 | event_header_type); | |
e98a2d6e PP |
1312 | status = read_dscope_begin_state(notit, event_header_type, |
1313 | STATE_AFTER_STREAM_EVENT_HEADER, | |
1314 | STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE, | |
1315 | ¬it->dscopes.stream_event_header); | |
fdf0e7a0 PP |
1316 | if (status < 0) { |
1317 | BT_LOGW("Cannot decode event header field: " | |
1318 | "notit-addr=%p, stream-class-addr=%p, " | |
1319 | "stream-class-name=\"%s\", " | |
1320 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1321 | notit, notit->meta.stream_class, | |
1322 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1323 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1324 | event_header_type); | |
1325 | } | |
e98a2d6e PP |
1326 | end: |
1327 | BT_PUT(event_header_type); | |
1328 | ||
1329 | return status; | |
1330 | } | |
1331 | ||
1332 | static | |
1333 | enum bt_ctf_notif_iter_status read_event_header_continue_state( | |
1334 | struct bt_ctf_notif_iter *notit) | |
1335 | { | |
1336 | return read_dscope_continue_state(notit, | |
1337 | STATE_AFTER_STREAM_EVENT_HEADER); | |
1338 | } | |
1339 | ||
1340 | static inline | |
1341 | enum bt_ctf_notif_iter_status set_current_event_class(struct bt_ctf_notif_iter *notit) | |
1342 | { | |
1343 | /* | |
1344 | * The assert() calls in this function are okay because it is | |
1345 | * assumed here that all the metadata objects have been | |
1346 | * validated for CTF correctness before decoding actual streams. | |
1347 | */ | |
1348 | ||
1349 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1350 | struct bt_ctf_field_type *event_header_type; | |
1351 | struct bt_ctf_field_type *id_field_type = NULL; | |
1352 | struct bt_ctf_field_type *v_field_type = NULL; | |
1353 | uint64_t event_id = -1ULL; | |
1354 | int ret; | |
1355 | ||
1356 | event_header_type = bt_ctf_stream_class_get_event_header_type( | |
1357 | notit->meta.stream_class); | |
1358 | if (!event_header_type) { | |
fdf0e7a0 PP |
1359 | /* |
1360 | * No event header, therefore no event class ID field, | |
1361 | * therefore only one event class. | |
1362 | */ | |
1363 | goto single_event_class; | |
e98a2d6e PP |
1364 | } |
1365 | ||
1366 | /* Is there any "id"/"v" field in the event header? */ | |
1367 | assert(is_struct_type(event_header_type)); | |
1368 | id_field_type = bt_ctf_field_type_structure_get_field_type_by_name( | |
1369 | event_header_type, "id"); | |
1370 | v_field_type = bt_ctf_field_type_structure_get_field_type_by_name( | |
1371 | event_header_type, "v"); | |
1372 | assert(notit->dscopes.stream_event_header); | |
1373 | if (v_field_type) { | |
1374 | /* | |
1375 | * _ _____ _____ | |
1376 | * | | |_ _|_ _| __ __ _ | |
1377 | * | | | | | || '_ \ / _` | | |
1378 | * | |___| | | || | | | (_| | S P E C I A L | |
1379 | * |_____|_| |_||_| |_|\__, | C A S E ™ | |
1380 | * |___/ | |
1381 | */ | |
1382 | struct bt_ctf_field *v_field = NULL; | |
1383 | struct bt_ctf_field *v_struct_field = NULL; | |
1384 | struct bt_ctf_field *v_struct_id_field = NULL; | |
1385 | ||
1386 | // TODO: optimalize! | |
1387 | v_field = bt_ctf_field_structure_get_field( | |
1388 | notit->dscopes.stream_event_header, "v"); | |
1389 | assert(v_field); | |
1390 | ||
1391 | v_struct_field = | |
1392 | bt_ctf_field_variant_get_current_field(v_field); | |
1393 | if (!v_struct_field) { | |
1394 | goto end_v_field_type; | |
1395 | } | |
1396 | ||
1397 | // TODO: optimalize! | |
1398 | v_struct_id_field = | |
1399 | bt_ctf_field_structure_get_field(v_struct_field, "id"); | |
1400 | if (!v_struct_id_field) { | |
1401 | goto end_v_field_type; | |
1402 | } | |
1403 | ||
fdf0e7a0 PP |
1404 | if (bt_ctf_field_is_integer(v_struct_id_field)) { |
1405 | ret = bt_ctf_field_unsigned_integer_get_value( | |
1406 | v_struct_id_field, &event_id); | |
1407 | if (ret) { | |
1408 | BT_LOGV("Cannot get value of unsigned integer field (`id`): continuing: " | |
1409 | "notit=%p, field-addr=%p", | |
1410 | notit, v_struct_id_field); | |
1411 | event_id = -1ULL; | |
1412 | } | |
e98a2d6e PP |
1413 | } |
1414 | ||
1415 | end_v_field_type: | |
1416 | BT_PUT(v_field); | |
1417 | BT_PUT(v_struct_field); | |
1418 | BT_PUT(v_struct_id_field); | |
1419 | } | |
1420 | ||
1421 | if (id_field_type && event_id == -1ULL) { | |
1422 | /* Check "id" field */ | |
1423 | struct bt_ctf_field *id_field = NULL; | |
fdf0e7a0 | 1424 | int ret = 0; |
e98a2d6e PP |
1425 | |
1426 | // TODO: optimalize! | |
1427 | id_field = bt_ctf_field_structure_get_field( | |
1428 | notit->dscopes.stream_event_header, "id"); | |
fdf0e7a0 PP |
1429 | if (!id_field) { |
1430 | goto check_event_id; | |
1431 | } | |
e98a2d6e PP |
1432 | |
1433 | if (bt_ctf_field_is_integer(id_field)) { | |
1434 | ret = bt_ctf_field_unsigned_integer_get_value( | |
1435 | id_field, &event_id); | |
fdf0e7a0 | 1436 | } else if (bt_ctf_field_is_enumeration(id_field)) { |
e98a2d6e PP |
1437 | struct bt_ctf_field *container; |
1438 | ||
1439 | container = bt_ctf_field_enumeration_get_container( | |
1440 | id_field); | |
1441 | assert(container); | |
1442 | ret = bt_ctf_field_unsigned_integer_get_value( | |
1443 | container, &event_id); | |
1444 | BT_PUT(container); | |
1445 | } | |
fdf0e7a0 PP |
1446 | |
1447 | assert(ret == 0); | |
e98a2d6e PP |
1448 | BT_PUT(id_field); |
1449 | } | |
1450 | ||
fdf0e7a0 | 1451 | check_event_id: |
e98a2d6e | 1452 | if (event_id == -1ULL) { |
fdf0e7a0 | 1453 | single_event_class: |
e98a2d6e PP |
1454 | /* Event ID not found: single event? */ |
1455 | assert(bt_ctf_stream_class_get_event_class_count( | |
1456 | notit->meta.stream_class) == 1); | |
1457 | event_id = 0; | |
1458 | } | |
1459 | ||
fdf0e7a0 PP |
1460 | BT_LOGV("Found event class ID to use: notit-addr=%p, " |
1461 | "stream-class-addr=%p, stream-class-name=\"%s\", " | |
1462 | "stream-class-id=%" PRId64 ", " | |
1463 | "event-class-id=%" PRIu64, | |
1464 | notit, notit->meta.stream_class, | |
1465 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1466 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1467 | event_id); | |
e98a2d6e PP |
1468 | BT_PUT(notit->meta.event_class); |
1469 | notit->meta.event_class = bt_ctf_stream_class_get_event_class_by_id( | |
1470 | notit->meta.stream_class, event_id); | |
1471 | if (!notit->meta.event_class) { | |
fdf0e7a0 PP |
1472 | BT_LOGW("No event class with ID of event class ID to use in stream class: " |
1473 | "notit-addr=%p, stream-class-addr=%p, " | |
1474 | "stream-class-name=\"%s\", " | |
1475 | "stream-class-id=%" PRId64 ", " | |
1476 | "event-class-id=%" PRIu64, | |
1477 | notit, notit->meta.stream_class, | |
1478 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1479 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1480 | event_id); | |
e98a2d6e PP |
1481 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
1482 | goto end; | |
1483 | } | |
1484 | ||
fdf0e7a0 PP |
1485 | BT_LOGV("Set current event class: " |
1486 | "notit-addr=%p, event-class-addr=%p, " | |
1487 | "event-class-name=\"%s\", event-class-id=%" PRId64, | |
1488 | notit, notit->meta.event_class, | |
1489 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1490 | bt_ctf_event_class_get_id(notit->meta.event_class)); | |
1491 | ||
e98a2d6e PP |
1492 | end: |
1493 | BT_PUT(event_header_type); | |
1494 | BT_PUT(id_field_type); | |
1495 | BT_PUT(v_field_type); | |
1496 | ||
1497 | return status; | |
1498 | } | |
1499 | ||
1500 | static | |
1501 | enum bt_ctf_notif_iter_status after_event_header_state( | |
1502 | struct bt_ctf_notif_iter *notit) | |
1503 | { | |
1504 | enum bt_ctf_notif_iter_status status; | |
1505 | ||
e98a2d6e PP |
1506 | status = set_current_event_class(notit); |
1507 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
e98a2d6e PP |
1508 | goto end; |
1509 | } | |
1510 | ||
1511 | notit->state = STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN; | |
1512 | ||
1513 | end: | |
1514 | return status; | |
1515 | } | |
1516 | ||
1517 | static | |
1518 | enum bt_ctf_notif_iter_status read_stream_event_context_begin_state( | |
1519 | struct bt_ctf_notif_iter *notit) | |
1520 | { | |
1521 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1522 | struct bt_ctf_field_type *stream_event_context_type; | |
1523 | ||
1524 | stream_event_context_type = bt_ctf_stream_class_get_event_context_type( | |
1525 | notit->meta.stream_class); | |
1526 | if (!stream_event_context_type) { | |
835b2d10 | 1527 | notit->state = STATE_DSCOPE_EVENT_CONTEXT_BEGIN; |
e98a2d6e PP |
1528 | goto end; |
1529 | } | |
1530 | ||
fdf0e7a0 PP |
1531 | BT_LOGV("Decoding stream event context field: " |
1532 | "notit-addr=%p, stream-class-addr=%p, " | |
1533 | "stream-class-name=\"%s\", stream-class-id=%" PRId64 ", " | |
1534 | "ft-addr=%p", | |
1535 | notit, notit->meta.stream_class, | |
1536 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1537 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1538 | stream_event_context_type); | |
e98a2d6e PP |
1539 | status = read_dscope_begin_state(notit, stream_event_context_type, |
1540 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN, | |
1541 | STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE, | |
1542 | ¬it->dscopes.stream_event_context); | |
fdf0e7a0 PP |
1543 | if (status < 0) { |
1544 | BT_LOGW("Cannot decode stream event context field: " | |
1545 | "notit-addr=%p, stream-class-addr=%p, " | |
1546 | "stream-class-name=\"%s\", " | |
1547 | "stream-class-id=%" PRId64 ", ft-addr=%p", | |
1548 | notit, notit->meta.stream_class, | |
1549 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
1550 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
1551 | stream_event_context_type); | |
1552 | } | |
e98a2d6e PP |
1553 | |
1554 | end: | |
1555 | BT_PUT(stream_event_context_type); | |
1556 | ||
1557 | return status; | |
1558 | } | |
1559 | ||
1560 | static | |
1561 | enum bt_ctf_notif_iter_status read_stream_event_context_continue_state( | |
1562 | struct bt_ctf_notif_iter *notit) | |
1563 | { | |
1564 | return read_dscope_continue_state(notit, | |
1565 | STATE_DSCOPE_EVENT_CONTEXT_BEGIN); | |
1566 | } | |
1567 | ||
1568 | static | |
1569 | enum bt_ctf_notif_iter_status read_event_context_begin_state( | |
1570 | struct bt_ctf_notif_iter *notit) | |
1571 | { | |
1572 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1573 | struct bt_ctf_field_type *event_context_type; | |
1574 | ||
1575 | event_context_type = bt_ctf_event_class_get_context_type( | |
1576 | notit->meta.event_class); | |
1577 | if (!event_context_type) { | |
835b2d10 | 1578 | notit->state = STATE_DSCOPE_EVENT_PAYLOAD_BEGIN; |
e98a2d6e PP |
1579 | goto end; |
1580 | } | |
fdf0e7a0 PP |
1581 | |
1582 | BT_LOGV("Decoding event context field: " | |
1583 | "notit-addr=%p, event-class-addr=%p, " | |
1584 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
1585 | "ft-addr=%p", | |
1586 | notit, notit->meta.event_class, | |
1587 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1588 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
1589 | event_context_type); | |
e98a2d6e PP |
1590 | status = read_dscope_begin_state(notit, event_context_type, |
1591 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, | |
1592 | STATE_DSCOPE_EVENT_CONTEXT_CONTINUE, | |
1593 | ¬it->dscopes.event_context); | |
fdf0e7a0 PP |
1594 | if (status < 0) { |
1595 | BT_LOGW("Cannot decode event context field: " | |
1596 | "notit-addr=%p, event-class-addr=%p, " | |
1597 | "event-class-name=\"%s\", " | |
1598 | "event-class-id=%" PRId64 ", ft-addr=%p", | |
1599 | notit, notit->meta.event_class, | |
1600 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1601 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
1602 | event_context_type); | |
1603 | } | |
e98a2d6e PP |
1604 | |
1605 | end: | |
1606 | BT_PUT(event_context_type); | |
1607 | ||
1608 | return status; | |
1609 | } | |
1610 | ||
1611 | static | |
1612 | enum bt_ctf_notif_iter_status read_event_context_continue_state( | |
1613 | struct bt_ctf_notif_iter *notit) | |
1614 | { | |
1615 | return read_dscope_continue_state(notit, | |
1616 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN); | |
1617 | } | |
1618 | ||
1619 | static | |
1620 | enum bt_ctf_notif_iter_status read_event_payload_begin_state( | |
1621 | struct bt_ctf_notif_iter *notit) | |
1622 | { | |
1623 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1624 | struct bt_ctf_field_type *event_payload_type; | |
1625 | ||
1626 | event_payload_type = bt_ctf_event_class_get_payload_type( | |
1627 | notit->meta.event_class); | |
1628 | if (!event_payload_type) { | |
835b2d10 | 1629 | notit->state = STATE_EMIT_NOTIF_EVENT; |
e98a2d6e PP |
1630 | goto end; |
1631 | } | |
1632 | ||
fdf0e7a0 PP |
1633 | BT_LOGV("Decoding event payload field: " |
1634 | "notit-addr=%p, event-class-addr=%p, " | |
1635 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
1636 | "ft-addr=%p", | |
1637 | notit, notit->meta.event_class, | |
1638 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1639 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
1640 | event_payload_type); | |
e98a2d6e PP |
1641 | status = read_dscope_begin_state(notit, event_payload_type, |
1642 | STATE_EMIT_NOTIF_EVENT, | |
1643 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
1644 | ¬it->dscopes.event_payload); | |
fdf0e7a0 PP |
1645 | if (status < 0) { |
1646 | BT_LOGW("Cannot decode event payload field: " | |
1647 | "notit-addr=%p, event-class-addr=%p, " | |
1648 | "event-class-name=\"%s\", " | |
1649 | "event-class-id=%" PRId64 ", ft-addr=%p", | |
1650 | notit, notit->meta.event_class, | |
1651 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
1652 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
1653 | event_payload_type); | |
1654 | } | |
e98a2d6e PP |
1655 | |
1656 | end: | |
1657 | BT_PUT(event_payload_type); | |
1658 | ||
1659 | return status; | |
1660 | } | |
1661 | ||
1662 | static | |
1663 | enum bt_ctf_notif_iter_status read_event_payload_continue_state( | |
1664 | struct bt_ctf_notif_iter *notit) | |
1665 | { | |
1666 | return read_dscope_continue_state(notit, STATE_EMIT_NOTIF_EVENT); | |
1667 | } | |
1668 | ||
1669 | static | |
1670 | enum bt_ctf_notif_iter_status skip_packet_padding_state( | |
1671 | struct bt_ctf_notif_iter *notit) | |
1672 | { | |
1673 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
1674 | size_t bits_to_skip; | |
1675 | ||
1676 | assert(notit->cur_packet_size > 0); | |
1677 | bits_to_skip = notit->cur_packet_size - packet_at(notit); | |
1678 | if (bits_to_skip == 0) { | |
1679 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1680 | goto end; | |
1681 | } else { | |
1682 | size_t bits_to_consume; | |
fdf0e7a0 PP |
1683 | |
1684 | BT_LOGV("Trying to skip %zu bits of padding: notit-addr=%p, size=%zu", | |
1685 | bits_to_skip, notit, bits_to_skip); | |
e98a2d6e PP |
1686 | status = buf_ensure_available_bits(notit); |
1687 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
1688 | goto end; | |
1689 | } | |
1690 | ||
1691 | bits_to_consume = MIN(buf_available_bits(notit), bits_to_skip); | |
fdf0e7a0 PP |
1692 | BT_LOGV("Skipping %zu bits of padding: notit-addr=%p, size=%zu", |
1693 | bits_to_consume, notit, bits_to_consume); | |
e98a2d6e PP |
1694 | buf_consume_bits(notit, bits_to_consume); |
1695 | bits_to_skip = notit->cur_packet_size - packet_at(notit); | |
1696 | if (bits_to_skip == 0) { | |
1697 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1698 | goto end; | |
1699 | } | |
1700 | } | |
1701 | ||
1702 | end: | |
1703 | return status; | |
1704 | } | |
1705 | ||
1706 | static inline | |
1707 | enum bt_ctf_notif_iter_status handle_state(struct bt_ctf_notif_iter *notit) | |
1708 | { | |
1709 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
fdf0e7a0 | 1710 | const enum state state = notit->state; |
e98a2d6e | 1711 | |
fdf0e7a0 PP |
1712 | BT_LOGV("Handling state: notit-addr=%p, state=%s", |
1713 | notit, state_string(state)); | |
e98a2d6e PP |
1714 | |
1715 | // TODO: optimalize! | |
fdf0e7a0 | 1716 | switch (state) { |
e98a2d6e PP |
1717 | case STATE_INIT: |
1718 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1719 | break; | |
1720 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
1721 | status = read_packet_header_begin_state(notit); | |
1722 | break; | |
1723 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
1724 | status = read_packet_header_continue_state(notit); | |
1725 | break; | |
1726 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
1727 | status = after_packet_header_state(notit); | |
1728 | break; | |
1729 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
1730 | status = read_packet_context_begin_state(notit); | |
1731 | break; | |
1732 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
1733 | status = read_packet_context_continue_state(notit); | |
1734 | break; | |
1735 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
1736 | status = after_packet_context_state(notit); | |
1737 | break; | |
1738 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
1739 | notit->state = STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN; | |
1740 | break; | |
1741 | case STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN: | |
1742 | status = read_event_header_begin_state(notit); | |
1743 | break; | |
1744 | case STATE_DSCOPE_STREAM_EVENT_HEADER_CONTINUE: | |
1745 | status = read_event_header_continue_state(notit); | |
1746 | break; | |
1747 | case STATE_AFTER_STREAM_EVENT_HEADER: | |
1748 | status = after_event_header_state(notit); | |
1749 | break; | |
1750 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_BEGIN: | |
1751 | status = read_stream_event_context_begin_state(notit); | |
1752 | break; | |
1753 | case STATE_DSCOPE_STREAM_EVENT_CONTEXT_CONTINUE: | |
1754 | status = read_stream_event_context_continue_state(notit); | |
1755 | break; | |
1756 | case STATE_DSCOPE_EVENT_CONTEXT_BEGIN: | |
1757 | status = read_event_context_begin_state(notit); | |
1758 | break; | |
1759 | case STATE_DSCOPE_EVENT_CONTEXT_CONTINUE: | |
1760 | status = read_event_context_continue_state(notit); | |
1761 | break; | |
1762 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
1763 | status = read_event_payload_begin_state(notit); | |
1764 | break; | |
1765 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
1766 | status = read_event_payload_continue_state(notit); | |
1767 | break; | |
1768 | case STATE_EMIT_NOTIF_EVENT: | |
1769 | notit->state = STATE_DSCOPE_STREAM_EVENT_HEADER_BEGIN; | |
1770 | break; | |
1771 | case STATE_SKIP_PACKET_PADDING: | |
1772 | status = skip_packet_padding_state(notit); | |
1773 | break; | |
1774 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
1775 | notit->state = STATE_SKIP_PACKET_PADDING; | |
1776 | break; | |
fdf0e7a0 PP |
1777 | default: |
1778 | BT_LOGD("Unknown CTF plugin notification iterator state: " | |
1779 | "notit-addr=%p, state=%d", notit, notit->state); | |
1780 | abort(); | |
e98a2d6e PP |
1781 | } |
1782 | ||
fdf0e7a0 PP |
1783 | BT_LOGV("Handled state: notit-addr=%p, status=%s, " |
1784 | "prev-state=%s, cur-state=%s", | |
1785 | notit, bt_ctf_notif_iter_status_string(status), | |
1786 | state_string(state), state_string(notit->state)); | |
e98a2d6e PP |
1787 | return status; |
1788 | } | |
1789 | ||
2cf1d51e JG |
1790 | /** |
1791 | * Resets the internal state of a CTF notification iterator. | |
2cf1d51e JG |
1792 | */ |
1793 | static | |
e98a2d6e PP |
1794 | void bt_ctf_notif_iter_reset(struct bt_ctf_notif_iter *notit) |
1795 | { | |
1796 | assert(notit); | |
fdf0e7a0 | 1797 | BT_LOGD("Resetting notification iterator: addr=%p", notit); |
e98a2d6e PP |
1798 | stack_clear(notit->stack); |
1799 | BT_PUT(notit->meta.stream_class); | |
1800 | BT_PUT(notit->meta.event_class); | |
1801 | BT_PUT(notit->packet); | |
5184a1d6 | 1802 | BT_PUT(notit->stream); |
e98a2d6e PP |
1803 | put_all_dscopes(notit); |
1804 | notit->buf.addr = NULL; | |
1805 | notit->buf.sz = 0; | |
1806 | notit->buf.at = 0; | |
bb8744a7 | 1807 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
1808 | notit->buf.packet_offset = 0; |
1809 | notit->state = STATE_INIT; | |
1810 | notit->cur_content_size = -1; | |
1811 | notit->cur_packet_size = -1; | |
bb230c9b | 1812 | notit->cur_packet_offset = -1; |
e98a2d6e PP |
1813 | } |
1814 | ||
2cf1d51e JG |
1815 | static |
1816 | int bt_ctf_notif_iter_switch_packet(struct bt_ctf_notif_iter *notit) | |
1817 | { | |
1818 | int ret = 0; | |
1819 | ||
c937c615 PP |
1820 | /* |
1821 | * We don't put the stream class here because we need to make | |
1822 | * sure that all the packets processed by the same notification | |
1823 | * iterator refer to the same stream class (the first one). | |
1824 | */ | |
2cf1d51e | 1825 | assert(notit); |
bb230c9b JG |
1826 | if (notit->cur_packet_size != -1) { |
1827 | notit->cur_packet_offset += notit->cur_packet_size; | |
1828 | } | |
1829 | BT_LOGV("Switching packet: notit-addr=%p, cur=%zu, " | |
1830 | "packet-offset=%" PRId64, notit, notit->buf.at, | |
1831 | notit->cur_packet_offset); | |
2cf1d51e | 1832 | stack_clear(notit->stack); |
2cf1d51e JG |
1833 | BT_PUT(notit->meta.event_class); |
1834 | BT_PUT(notit->packet); | |
5f870343 | 1835 | BT_PUT(notit->cur_timestamp_end); |
2cf1d51e JG |
1836 | put_all_dscopes(notit); |
1837 | ||
1838 | /* | |
1839 | * Adjust current buffer so that addr points to the beginning of the new | |
1840 | * packet. | |
1841 | */ | |
1842 | if (notit->buf.addr) { | |
1843 | size_t consumed_bytes = (size_t) (notit->buf.at / CHAR_BIT); | |
1844 | ||
1845 | /* Packets are assumed to start on a byte frontier. */ | |
1846 | if (notit->buf.at % CHAR_BIT) { | |
fdf0e7a0 PP |
1847 | BT_LOGW("Cannot switch packet: current position is not a multiple of 8: " |
1848 | "notit-addr=%p, cur=%zu", notit, notit->buf.at); | |
2cf1d51e JG |
1849 | ret = -1; |
1850 | goto end; | |
1851 | } | |
1852 | ||
1853 | notit->buf.addr += consumed_bytes; | |
1854 | notit->buf.sz -= consumed_bytes; | |
1855 | notit->buf.at = 0; | |
1856 | notit->buf.packet_offset = 0; | |
fdf0e7a0 PP |
1857 | BT_LOGV("Adjusted buffer: addr=%p, size=%zu", |
1858 | notit->buf.addr, notit->buf.sz); | |
2cf1d51e JG |
1859 | } |
1860 | ||
1861 | notit->cur_content_size = -1; | |
1862 | notit->cur_packet_size = -1; | |
5f870343 | 1863 | notit->cur_sc_field_path_cache = NULL; |
fdf0e7a0 | 1864 | |
2cf1d51e JG |
1865 | end: |
1866 | return ret; | |
1867 | } | |
1868 | ||
e98a2d6e PP |
1869 | static |
1870 | struct bt_ctf_field *get_next_field(struct bt_ctf_notif_iter *notit) | |
1871 | { | |
1872 | struct bt_ctf_field *next_field = NULL; | |
1873 | struct bt_ctf_field *base_field; | |
1874 | struct bt_ctf_field_type *base_type; | |
1875 | size_t index; | |
1876 | ||
1877 | assert(!stack_empty(notit->stack)); | |
1878 | index = stack_top(notit->stack)->index; | |
1879 | base_field = stack_top(notit->stack)->base; | |
fdf0e7a0 | 1880 | assert(base_field); |
e98a2d6e | 1881 | base_type = bt_ctf_field_get_type(base_field); |
fdf0e7a0 | 1882 | assert(base_type); |
e98a2d6e PP |
1883 | |
1884 | switch (bt_ctf_field_type_get_type_id(base_type)) { | |
1487a16a | 1885 | case BT_CTF_FIELD_TYPE_ID_STRUCT: |
e98a2d6e PP |
1886 | next_field = bt_ctf_field_structure_get_field_by_index( |
1887 | base_field, index); | |
1888 | break; | |
1487a16a | 1889 | case BT_CTF_FIELD_TYPE_ID_ARRAY: |
e98a2d6e PP |
1890 | next_field = bt_ctf_field_array_get_field(base_field, index); |
1891 | break; | |
1487a16a | 1892 | case BT_CTF_FIELD_TYPE_ID_SEQUENCE: |
e98a2d6e PP |
1893 | next_field = bt_ctf_field_sequence_get_field(base_field, index); |
1894 | break; | |
1487a16a | 1895 | case BT_CTF_FIELD_TYPE_ID_VARIANT: |
e98a2d6e PP |
1896 | next_field = bt_ctf_field_variant_get_current_field(base_field); |
1897 | break; | |
1898 | default: | |
fdf0e7a0 PP |
1899 | BT_LOGF("Unknown base field type ID: " |
1900 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
1901 | notit, base_type, | |
1902 | bt_ctf_field_type_id_string( | |
1903 | bt_ctf_field_type_get_type_id(base_type))); | |
0fbb9a9f | 1904 | abort(); |
e98a2d6e PP |
1905 | } |
1906 | ||
e98a2d6e | 1907 | BT_PUT(base_type); |
e98a2d6e PP |
1908 | return next_field; |
1909 | } | |
1910 | ||
c44c3e70 JG |
1911 | static |
1912 | void update_clock_state(uint64_t *state, | |
1913 | struct bt_ctf_field *value_field) | |
1914 | { | |
1915 | struct bt_ctf_field_type *value_type = NULL; | |
1916 | uint64_t requested_new_value; | |
1917 | uint64_t requested_new_value_mask; | |
1918 | uint64_t cur_value_masked; | |
1919 | int requested_new_value_size; | |
1920 | int ret; | |
1921 | ||
1922 | value_type = bt_ctf_field_get_type(value_field); | |
1923 | assert(value_type); | |
fdf0e7a0 | 1924 | assert(bt_ctf_field_type_is_integer(value_type)); |
c44c3e70 JG |
1925 | requested_new_value_size = |
1926 | bt_ctf_field_type_integer_get_size(value_type); | |
1927 | assert(requested_new_value_size > 0); | |
c44c3e70 JG |
1928 | ret = bt_ctf_field_unsigned_integer_get_value(value_field, |
1929 | &requested_new_value); | |
1930 | assert(!ret); | |
1931 | ||
1932 | /* | |
1933 | * Special case for a 64-bit new value, which is the limit | |
1934 | * of a clock value as of this version: overwrite the | |
1935 | * current value directly. | |
1936 | */ | |
1937 | if (requested_new_value_size == 64) { | |
1938 | *state = requested_new_value; | |
1939 | goto end; | |
1940 | } | |
1941 | ||
1942 | requested_new_value_mask = (1ULL << requested_new_value_size) - 1; | |
1943 | cur_value_masked = *state & requested_new_value_mask; | |
1944 | ||
1945 | if (requested_new_value < cur_value_masked) { | |
1946 | /* | |
1947 | * It looks like a wrap happened on the number of bits | |
1948 | * of the requested new value. Assume that the clock | |
1949 | * value wrapped only one time. | |
1950 | */ | |
1951 | *state += requested_new_value_mask + 1; | |
1952 | } | |
1953 | ||
1954 | /* Clear the low bits of the current clock value. */ | |
1955 | *state &= ~requested_new_value_mask; | |
1956 | ||
1957 | /* Set the low bits of the current clock value. */ | |
1958 | *state |= requested_new_value; | |
1959 | end: | |
fdf0e7a0 PP |
1960 | BT_LOGV("Updated clock's value from integer field's value: " |
1961 | "value=%" PRIu64, *state); | |
c44c3e70 JG |
1962 | bt_put(value_type); |
1963 | } | |
1964 | ||
1965 | static | |
1966 | enum bt_ctf_btr_status update_clock(struct bt_ctf_notif_iter *notit, | |
c44c3e70 JG |
1967 | struct bt_ctf_field *int_field) |
1968 | { | |
ac0c6bdd | 1969 | gboolean clock_class_found; |
501a8569 | 1970 | uint64_t *clock_state = NULL; |
f45bfe88 | 1971 | struct bt_ctf_field_type *int_field_type = NULL; |
c44c3e70 | 1972 | enum bt_ctf_btr_status ret = BT_CTF_BTR_STATUS_OK; |
f45bfe88 | 1973 | struct bt_ctf_clock_class *clock_class = NULL; |
c44c3e70 | 1974 | |
f45bfe88 | 1975 | int_field_type = bt_ctf_field_get_type(int_field); |
fdf0e7a0 | 1976 | assert(int_field_type); |
f45bfe88 PP |
1977 | clock_class = bt_ctf_field_type_integer_get_mapped_clock_class( |
1978 | int_field_type); | |
ac0c6bdd | 1979 | if (likely(!clock_class)) { |
f45bfe88 | 1980 | goto end; |
c44c3e70 JG |
1981 | } |
1982 | ||
ac0c6bdd | 1983 | clock_class_found = g_hash_table_lookup_extended(notit->clock_states, |
fdf0e7a0 | 1984 | clock_class, NULL, (gpointer) &clock_state); |
501a8569 | 1985 | if (!clock_class_found) { |
c44c3e70 JG |
1986 | clock_state = g_new0(uint64_t, 1); |
1987 | if (!clock_state) { | |
fdf0e7a0 | 1988 | BT_LOGE_STR("Failed to allocate a uint64_t."); |
c44c3e70 JG |
1989 | ret = BT_CTF_BTR_STATUS_ENOMEM; |
1990 | goto end; | |
1991 | } | |
fdf0e7a0 | 1992 | |
ac0c6bdd | 1993 | g_hash_table_insert(notit->clock_states, bt_get(clock_class), |
fdf0e7a0 | 1994 | clock_state); |
c44c3e70 JG |
1995 | } |
1996 | ||
1997 | /* Update the clock's state. */ | |
fdf0e7a0 PP |
1998 | BT_LOGV("Updating notification iterator's clock's value from integer field: " |
1999 | "notit-addr=%p, clock-class-addr=%p, " | |
2000 | "clock-class-name=\"%s\", value=%" PRIu64, | |
2001 | notit, clock_class, | |
2002 | bt_ctf_clock_class_get_name(clock_class), *clock_state); | |
c44c3e70 JG |
2003 | update_clock_state(clock_state, int_field); |
2004 | end: | |
f45bfe88 | 2005 | bt_put(int_field_type); |
ac0c6bdd | 2006 | bt_put(clock_class); |
c44c3e70 JG |
2007 | return ret; |
2008 | } | |
2009 | ||
e98a2d6e | 2010 | static |
5f870343 JG |
2011 | enum bt_ctf_btr_status btr_unsigned_int_common(uint64_t value, |
2012 | struct bt_ctf_field_type *type, void *data, | |
f45bfe88 | 2013 | struct bt_ctf_field **out_int_field) |
e98a2d6e PP |
2014 | { |
2015 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2016 | struct bt_ctf_field *field = NULL; | |
2017 | struct bt_ctf_field *int_field = NULL; | |
2018 | struct bt_ctf_notif_iter *notit = data; | |
2019 | int ret; | |
2020 | ||
fdf0e7a0 PP |
2021 | BT_LOGV("Common unsigned integer function called from BTR: " |
2022 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2023 | "ft-id=%s, value=%" PRIu64, | |
2024 | notit, notit->btr, type, | |
2025 | bt_ctf_field_type_id_string( | |
2026 | bt_ctf_field_type_get_type_id(type)), | |
2027 | value); | |
2028 | ||
5f870343 | 2029 | /* Create next field */ |
e98a2d6e PP |
2030 | field = get_next_field(notit); |
2031 | if (!field) { | |
fdf0e7a0 | 2032 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
e98a2d6e | 2033 | status = BT_CTF_BTR_STATUS_ERROR; |
c44c3e70 | 2034 | goto end_no_put; |
e98a2d6e PP |
2035 | } |
2036 | ||
2037 | switch(bt_ctf_field_type_get_type_id(type)) { | |
1487a16a | 2038 | case BT_CTF_FIELD_TYPE_ID_INTEGER: |
e98a2d6e PP |
2039 | /* Integer field is created field */ |
2040 | BT_MOVE(int_field, field); | |
c44c3e70 | 2041 | bt_get(type); |
e98a2d6e | 2042 | break; |
1487a16a | 2043 | case BT_CTF_FIELD_TYPE_ID_ENUM: |
e98a2d6e | 2044 | int_field = bt_ctf_field_enumeration_get_container(field); |
fdf0e7a0 | 2045 | assert(int_field); |
c44c3e70 | 2046 | type = bt_ctf_field_get_type(int_field); |
fdf0e7a0 | 2047 | assert(type); |
e98a2d6e PP |
2048 | break; |
2049 | default: | |
fdf0e7a0 PP |
2050 | BT_LOGF("Unexpected field type ID: " |
2051 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
2052 | notit, type, | |
2053 | bt_ctf_field_type_id_string( | |
2054 | bt_ctf_field_type_get_type_id(type))); | |
0fbb9a9f | 2055 | abort(); |
e98a2d6e PP |
2056 | } |
2057 | ||
fdf0e7a0 | 2058 | assert(int_field); |
5f870343 | 2059 | ret = bt_ctf_field_unsigned_integer_set_value(int_field, value); |
fdf0e7a0 | 2060 | assert(ret == 0); |
e98a2d6e | 2061 | stack_top(notit->stack)->index++; |
f45bfe88 | 2062 | *out_int_field = int_field; |
e98a2d6e | 2063 | BT_PUT(field); |
c44c3e70 | 2064 | BT_PUT(type); |
fdf0e7a0 | 2065 | |
c44c3e70 | 2066 | end_no_put: |
e98a2d6e PP |
2067 | return status; |
2068 | } | |
2069 | ||
5f870343 JG |
2070 | static |
2071 | enum bt_ctf_btr_status btr_timestamp_end_cb(void *value, | |
2072 | struct bt_ctf_field_type *type, void *data) | |
2073 | { | |
2074 | enum bt_ctf_btr_status status; | |
2075 | struct bt_ctf_field *field = NULL; | |
2076 | struct bt_ctf_notif_iter *notit = data; | |
2077 | ||
fdf0e7a0 PP |
2078 | BT_LOGV("`timestamp_end` unsigned integer function called from BTR: " |
2079 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2080 | "ft-id=%s", | |
2081 | notit, notit->btr, type, | |
2082 | bt_ctf_field_type_id_string( | |
2083 | bt_ctf_field_type_get_type_id(type))); | |
5f870343 JG |
2084 | status = btr_unsigned_int_common(*((uint64_t *) value), type, data, |
2085 | &field); | |
2086 | ||
2087 | /* Set as the current packet's timestamp_end field. */ | |
2088 | BT_MOVE(notit->cur_timestamp_end, field); | |
2089 | return status; | |
2090 | } | |
2091 | ||
e98a2d6e PP |
2092 | static |
2093 | enum bt_ctf_btr_status btr_unsigned_int_cb(uint64_t value, | |
2094 | struct bt_ctf_field_type *type, void *data) | |
5f870343 JG |
2095 | { |
2096 | struct bt_ctf_notif_iter *notit = data; | |
2097 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2098 | struct bt_ctf_field *field = NULL; | |
2099 | struct field_cb_override *override; | |
2100 | ||
fdf0e7a0 PP |
2101 | BT_LOGV("Unsigned integer function called from BTR: " |
2102 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2103 | "ft-id=%s, value=%" PRIu64, | |
2104 | notit, notit->btr, type, | |
2105 | bt_ctf_field_type_id_string( | |
2106 | bt_ctf_field_type_get_type_id(type)), | |
2107 | value); | |
2108 | override = g_hash_table_lookup(notit->field_overrides, type); | |
5f870343 | 2109 | if (unlikely(override)) { |
fdf0e7a0 | 2110 | /* Override function logs errors */ |
5f870343 JG |
2111 | status = override->func(&value, type, override->data); |
2112 | goto end; | |
2113 | } | |
2114 | ||
2115 | status = btr_unsigned_int_common(value, type, data, &field); | |
2116 | if (status != BT_CTF_BTR_STATUS_OK) { | |
fdf0e7a0 | 2117 | /* btr_unsigned_int_common() logs errors */ |
5f870343 JG |
2118 | goto end; |
2119 | } | |
2120 | ||
f45bfe88 | 2121 | status = update_clock(notit, field); |
5f870343 JG |
2122 | BT_PUT(field); |
2123 | end: | |
2124 | return status; | |
2125 | } | |
2126 | ||
2127 | static | |
2128 | enum bt_ctf_btr_status btr_signed_int_cb(int64_t value, | |
2129 | struct bt_ctf_field_type *type, void *data) | |
e98a2d6e PP |
2130 | { |
2131 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2132 | struct bt_ctf_field *field = NULL; | |
2133 | struct bt_ctf_field *int_field = NULL; | |
2134 | struct bt_ctf_notif_iter *notit = data; | |
2135 | int ret; | |
2136 | ||
fdf0e7a0 PP |
2137 | BT_LOGV("Signed integer function called from BTR: " |
2138 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2139 | "ft-id=%s, value=%" PRId64, | |
2140 | notit, notit->btr, type, | |
2141 | bt_ctf_field_type_id_string( | |
2142 | bt_ctf_field_type_get_type_id(type)), | |
2143 | value); | |
2144 | ||
5f870343 | 2145 | /* create next field */ |
e98a2d6e PP |
2146 | field = get_next_field(notit); |
2147 | if (!field) { | |
fdf0e7a0 | 2148 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
e98a2d6e | 2149 | status = BT_CTF_BTR_STATUS_ERROR; |
c44c3e70 | 2150 | goto end_no_put; |
e98a2d6e PP |
2151 | } |
2152 | ||
2153 | switch(bt_ctf_field_type_get_type_id(type)) { | |
1487a16a | 2154 | case BT_CTF_FIELD_TYPE_ID_INTEGER: |
e98a2d6e PP |
2155 | /* Integer field is created field */ |
2156 | BT_MOVE(int_field, field); | |
c44c3e70 | 2157 | bt_get(type); |
e98a2d6e | 2158 | break; |
1487a16a | 2159 | case BT_CTF_FIELD_TYPE_ID_ENUM: |
e98a2d6e | 2160 | int_field = bt_ctf_field_enumeration_get_container(field); |
fdf0e7a0 | 2161 | assert(int_field); |
c44c3e70 | 2162 | type = bt_ctf_field_get_type(int_field); |
fdf0e7a0 | 2163 | assert(type); |
e98a2d6e PP |
2164 | break; |
2165 | default: | |
fdf0e7a0 PP |
2166 | BT_LOGF("Unexpected field type ID: " |
2167 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
2168 | notit, type, | |
2169 | bt_ctf_field_type_id_string( | |
2170 | bt_ctf_field_type_get_type_id(type))); | |
0fbb9a9f | 2171 | abort(); |
e98a2d6e PP |
2172 | } |
2173 | ||
fdf0e7a0 | 2174 | assert(int_field); |
5f870343 | 2175 | ret = bt_ctf_field_signed_integer_set_value(int_field, value); |
e98a2d6e PP |
2176 | assert(!ret); |
2177 | stack_top(notit->stack)->index++; | |
f45bfe88 | 2178 | status = update_clock(notit, int_field); |
e98a2d6e PP |
2179 | BT_PUT(field); |
2180 | BT_PUT(int_field); | |
c44c3e70 | 2181 | BT_PUT(type); |
fdf0e7a0 | 2182 | |
c44c3e70 | 2183 | end_no_put: |
e98a2d6e PP |
2184 | return status; |
2185 | } | |
2186 | ||
2187 | static | |
2188 | enum bt_ctf_btr_status btr_floating_point_cb(double value, | |
2189 | struct bt_ctf_field_type *type, void *data) | |
2190 | { | |
2191 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2192 | struct bt_ctf_field *field = NULL; | |
2193 | struct bt_ctf_notif_iter *notit = data; | |
2194 | int ret; | |
2195 | ||
fdf0e7a0 PP |
2196 | BT_LOGV("Floating point number function called from BTR: " |
2197 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2198 | "ft-id=%s, value=%f", | |
2199 | notit, notit->btr, type, | |
2200 | bt_ctf_field_type_id_string( | |
2201 | bt_ctf_field_type_get_type_id(type)), | |
2202 | value); | |
2203 | ||
e98a2d6e PP |
2204 | /* Create next field */ |
2205 | field = get_next_field(notit); | |
2206 | if (!field) { | |
fdf0e7a0 | 2207 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
e98a2d6e PP |
2208 | status = BT_CTF_BTR_STATUS_ERROR; |
2209 | goto end; | |
2210 | } | |
2211 | ||
2212 | ret = bt_ctf_field_floating_point_set_value(field, value); | |
2213 | assert(!ret); | |
2214 | stack_top(notit->stack)->index++; | |
2215 | ||
2216 | end: | |
2217 | BT_PUT(field); | |
e98a2d6e PP |
2218 | return status; |
2219 | } | |
2220 | ||
2221 | static | |
2222 | enum bt_ctf_btr_status btr_string_begin_cb( | |
2223 | struct bt_ctf_field_type *type, void *data) | |
2224 | { | |
2225 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2226 | struct bt_ctf_field *field = NULL; | |
2227 | struct bt_ctf_notif_iter *notit = data; | |
2228 | int ret; | |
2229 | ||
fdf0e7a0 PP |
2230 | BT_LOGV("String (beginning) function called from BTR: " |
2231 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2232 | "ft-id=%s", | |
2233 | notit, notit->btr, type, | |
2234 | bt_ctf_field_type_id_string( | |
2235 | bt_ctf_field_type_get_type_id(type))); | |
2236 | ||
e98a2d6e PP |
2237 | /* Create next field */ |
2238 | field = get_next_field(notit); | |
2239 | if (!field) { | |
fdf0e7a0 | 2240 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); |
e98a2d6e PP |
2241 | status = BT_CTF_BTR_STATUS_ERROR; |
2242 | goto end; | |
2243 | } | |
2244 | ||
2245 | /* | |
2246 | * Push on stack. Not a compound type per se, but we know that only | |
2247 | * btr_string_cb() may be called between this call and a subsequent | |
2248 | * call to btr_string_end_cb(). | |
2249 | */ | |
2250 | ret = stack_push(notit->stack, field); | |
2251 | if (ret) { | |
fdf0e7a0 PP |
2252 | BT_LOGE("Cannot push string field on stack: " |
2253 | "notit-addr=%p, field-addr=%p", notit, field); | |
e98a2d6e PP |
2254 | status = BT_CTF_BTR_STATUS_ERROR; |
2255 | goto end; | |
2256 | } | |
2257 | ||
e5df2ae3 JG |
2258 | /* |
2259 | * Initialize string field payload to an empty string since in the | |
2260 | * case of a length 0 string the btr_string_cb won't be called and | |
2261 | * we will end up with an unset string payload. | |
2262 | */ | |
2263 | ret = bt_ctf_field_string_set_value(field, ""); | |
2264 | if (ret) { | |
fdf0e7a0 PP |
2265 | BT_LOGE("Cannot initialize string field's value to an empty string: " |
2266 | "notit-addr=%p, field-addr=%p, ret=%d", | |
2267 | notit, field, ret); | |
e5df2ae3 JG |
2268 | status = BT_CTF_BTR_STATUS_ERROR; |
2269 | goto end; | |
2270 | } | |
2271 | ||
e98a2d6e PP |
2272 | end: |
2273 | BT_PUT(field); | |
2274 | ||
2275 | return status; | |
2276 | } | |
2277 | ||
2278 | static | |
2279 | enum bt_ctf_btr_status btr_string_cb(const char *value, | |
2280 | size_t len, struct bt_ctf_field_type *type, void *data) | |
2281 | { | |
2282 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2283 | struct bt_ctf_field *field = NULL; | |
2284 | struct bt_ctf_notif_iter *notit = data; | |
2285 | int ret; | |
2286 | ||
fdf0e7a0 PP |
2287 | BT_LOGV("String (substring) function called from BTR: " |
2288 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2289 | "ft-id=%s, string-length=%zu", | |
2290 | notit, notit->btr, type, | |
2291 | bt_ctf_field_type_id_string( | |
2292 | bt_ctf_field_type_get_type_id(type)), | |
2293 | len); | |
2294 | ||
e98a2d6e PP |
2295 | /* Get string field */ |
2296 | field = stack_top(notit->stack)->base; | |
2297 | assert(field); | |
2298 | ||
2299 | /* Append current string */ | |
2300 | ret = bt_ctf_field_string_append_len(field, value, len); | |
2301 | if (ret) { | |
fdf0e7a0 PP |
2302 | BT_LOGE("Cannot append substring to string field's value: " |
2303 | "notit-addr=%p, field-addr=%p, string-length=%zu, " | |
2304 | "ret=%d", notit, field, len, ret); | |
e98a2d6e PP |
2305 | status = BT_CTF_BTR_STATUS_ERROR; |
2306 | goto end; | |
2307 | } | |
2308 | ||
2309 | end: | |
2310 | return status; | |
2311 | } | |
2312 | ||
2313 | static | |
2314 | enum bt_ctf_btr_status btr_string_end_cb( | |
2315 | struct bt_ctf_field_type *type, void *data) | |
2316 | { | |
2317 | struct bt_ctf_notif_iter *notit = data; | |
2318 | ||
fdf0e7a0 PP |
2319 | BT_LOGV("String (end) function called from BTR: " |
2320 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2321 | "ft-id=%s", | |
2322 | notit, notit->btr, type, | |
2323 | bt_ctf_field_type_id_string( | |
2324 | bt_ctf_field_type_get_type_id(type))); | |
2325 | ||
e98a2d6e PP |
2326 | /* Pop string field */ |
2327 | stack_pop(notit->stack); | |
2328 | ||
2329 | /* Go to next field */ | |
2330 | stack_top(notit->stack)->index++; | |
e98a2d6e PP |
2331 | return BT_CTF_BTR_STATUS_OK; |
2332 | } | |
2333 | ||
2334 | enum bt_ctf_btr_status btr_compound_begin_cb( | |
2335 | struct bt_ctf_field_type *type, void *data) | |
2336 | { | |
2337 | enum bt_ctf_btr_status status = BT_CTF_BTR_STATUS_OK; | |
2338 | struct bt_ctf_notif_iter *notit = data; | |
2339 | struct bt_ctf_field *field; | |
2340 | int ret; | |
2341 | ||
fdf0e7a0 PP |
2342 | BT_LOGV("Compound (beginning) function called from BTR: " |
2343 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2344 | "ft-id=%s", | |
2345 | notit, notit->btr, type, | |
2346 | bt_ctf_field_type_id_string( | |
2347 | bt_ctf_field_type_get_type_id(type))); | |
2348 | ||
e98a2d6e PP |
2349 | /* Create field */ |
2350 | if (stack_empty(notit->stack)) { | |
2351 | /* Root: create dynamic scope field */ | |
2352 | *notit->cur_dscope_field = bt_ctf_field_create(type); | |
2353 | field = *notit->cur_dscope_field; | |
2354 | ||
2355 | /* | |
2356 | * Field will be put at the end of this function | |
2357 | * (stack_push() will take one reference, but this | |
2358 | * reference is lost upon the equivalent stack_pop() | |
2359 | * later), so also get it for our context to own it. | |
2360 | */ | |
2361 | bt_get(*notit->cur_dscope_field); | |
fdf0e7a0 PP |
2362 | |
2363 | if (!field) { | |
2364 | BT_LOGE("Cannot create compound field: " | |
2365 | "notit-addr=%p, ft-addr=%p, ft-id=%s", | |
2366 | notit, type, | |
2367 | bt_ctf_field_type_id_string( | |
2368 | bt_ctf_field_type_get_type_id(type))); | |
2369 | status = BT_CTF_BTR_STATUS_ERROR; | |
2370 | goto end; | |
2371 | } | |
e98a2d6e PP |
2372 | } else { |
2373 | field = get_next_field(notit); | |
fdf0e7a0 PP |
2374 | if (!field) { |
2375 | BT_LOGW("Cannot get next field: notit-addr=%p", notit); | |
2376 | status = BT_CTF_BTR_STATUS_ERROR; | |
2377 | goto end; | |
2378 | } | |
e98a2d6e PP |
2379 | } |
2380 | ||
2381 | /* Push field */ | |
fdf0e7a0 | 2382 | assert(field); |
e98a2d6e PP |
2383 | ret = stack_push(notit->stack, field); |
2384 | if (ret) { | |
fdf0e7a0 PP |
2385 | BT_LOGE("Cannot push compound field onto the stack: " |
2386 | "notit-addr=%p, ft-addr=%p, ft-id=%s, ret=%d", | |
2387 | notit, type, | |
2388 | bt_ctf_field_type_id_string( | |
2389 | bt_ctf_field_type_get_type_id(type)), | |
2390 | ret); | |
e98a2d6e PP |
2391 | status = BT_CTF_BTR_STATUS_ERROR; |
2392 | goto end; | |
2393 | } | |
2394 | ||
2395 | end: | |
2396 | BT_PUT(field); | |
2397 | ||
2398 | return status; | |
2399 | } | |
2400 | ||
2401 | enum bt_ctf_btr_status btr_compound_end_cb( | |
2402 | struct bt_ctf_field_type *type, void *data) | |
2403 | { | |
2404 | struct bt_ctf_notif_iter *notit = data; | |
2405 | ||
fdf0e7a0 PP |
2406 | BT_LOGV("Compound (end) function called from BTR: " |
2407 | "notit-addr=%p, btr-addr=%p, ft-addr=%p, " | |
2408 | "ft-id=%s", | |
2409 | notit, notit->btr, type, | |
2410 | bt_ctf_field_type_id_string( | |
2411 | bt_ctf_field_type_get_type_id(type))); | |
e98a2d6e PP |
2412 | assert(!stack_empty(notit->stack)); |
2413 | ||
2414 | /* Pop stack */ | |
2415 | stack_pop(notit->stack); | |
2416 | ||
2417 | /* If the stack is not empty, increment the base's index */ | |
2418 | if (!stack_empty(notit->stack)) { | |
2419 | stack_top(notit->stack)->index++; | |
2420 | } | |
2421 | ||
2422 | return BT_CTF_BTR_STATUS_OK; | |
2423 | } | |
2424 | ||
2425 | static | |
2426 | struct bt_ctf_field *resolve_field(struct bt_ctf_notif_iter *notit, | |
2427 | struct bt_ctf_field_path *path) | |
2428 | { | |
2429 | struct bt_ctf_field *field = NULL; | |
2430 | unsigned int i; | |
2431 | ||
fdf0e7a0 PP |
2432 | if (BT_LOG_ON_VERBOSE) { |
2433 | GString *gstr = bt_ctf_field_path_string(path); | |
2434 | ||
2435 | BT_LOGV("Resolving field path: notit-addr=%p, field-path=\"%s\"", | |
2436 | notit, gstr ? gstr->str : NULL); | |
2437 | ||
2438 | if (gstr) { | |
2439 | g_string_free(gstr, TRUE); | |
2440 | } | |
2441 | } | |
2442 | ||
e98a2d6e PP |
2443 | switch (bt_ctf_field_path_get_root_scope(path)) { |
2444 | case BT_CTF_SCOPE_TRACE_PACKET_HEADER: | |
2445 | field = notit->dscopes.trace_packet_header; | |
2446 | break; | |
2447 | case BT_CTF_SCOPE_STREAM_PACKET_CONTEXT: | |
2448 | field = notit->dscopes.stream_packet_context; | |
2449 | break; | |
2450 | case BT_CTF_SCOPE_STREAM_EVENT_HEADER: | |
2451 | field = notit->dscopes.stream_event_header; | |
2452 | break; | |
2453 | case BT_CTF_SCOPE_STREAM_EVENT_CONTEXT: | |
2454 | field = notit->dscopes.stream_event_context; | |
2455 | break; | |
2456 | case BT_CTF_SCOPE_EVENT_CONTEXT: | |
2457 | field = notit->dscopes.event_context; | |
2458 | break; | |
2459 | case BT_CTF_SCOPE_EVENT_FIELDS: | |
2460 | field = notit->dscopes.event_payload; | |
2461 | break; | |
2462 | default: | |
fdf0e7a0 PP |
2463 | BT_LOGF("Cannot resolve field path: unknown scope: " |
2464 | "notit-addr=%p, root-scope=%s", | |
2465 | notit, bt_ctf_scope_string( | |
2466 | bt_ctf_field_path_get_root_scope(path))); | |
2467 | abort(); | |
e98a2d6e PP |
2468 | } |
2469 | ||
2470 | if (!field) { | |
fdf0e7a0 PP |
2471 | BT_LOGW("Cannot resolve field path: root field not found: " |
2472 | "notit-addr=%p, root-scope=%s", | |
2473 | notit, bt_ctf_scope_string( | |
2474 | bt_ctf_field_path_get_root_scope(path))); | |
e98a2d6e PP |
2475 | goto end; |
2476 | } | |
2477 | ||
2478 | bt_get(field); | |
2479 | ||
2480 | for (i = 0; i < bt_ctf_field_path_get_index_count(path); ++i) { | |
2481 | struct bt_ctf_field *next_field = NULL; | |
2482 | struct bt_ctf_field_type *field_type; | |
2483 | int index = bt_ctf_field_path_get_index(path, i); | |
2484 | ||
2485 | field_type = bt_ctf_field_get_type(field); | |
fdf0e7a0 | 2486 | assert(field_type); |
e98a2d6e PP |
2487 | |
2488 | if (is_struct_type(field_type)) { | |
2489 | next_field = bt_ctf_field_structure_get_field_by_index( | |
2490 | field, index); | |
2491 | } else if (is_variant_type(field_type)) { | |
2492 | next_field = | |
2493 | bt_ctf_field_variant_get_current_field(field); | |
2494 | } | |
2495 | ||
2496 | BT_PUT(field); | |
2497 | BT_PUT(field_type); | |
2498 | ||
2499 | if (!next_field) { | |
fdf0e7a0 PP |
2500 | BT_LOGW("Cannot find next field: " |
2501 | "notit-addr=%p, ft-addr=%p, ft-id=%s, index=%d", | |
2502 | notit, field_type, | |
2503 | bt_ctf_field_type_id_string( | |
2504 | bt_ctf_field_type_get_type_id(field_type)), | |
2505 | index); | |
e98a2d6e PP |
2506 | goto end; |
2507 | } | |
2508 | ||
2509 | /* Move next field -> field */ | |
2510 | BT_MOVE(field, next_field); | |
2511 | } | |
2512 | ||
2513 | end: | |
2514 | return field; | |
2515 | } | |
2516 | ||
2517 | static | |
2518 | int64_t btr_get_sequence_length_cb(struct bt_ctf_field_type *type, void *data) | |
2519 | { | |
2520 | int64_t ret = -1; | |
2521 | int iret; | |
fdf0e7a0 | 2522 | struct bt_ctf_field *seq_field; |
e98a2d6e PP |
2523 | struct bt_ctf_field_path *field_path; |
2524 | struct bt_ctf_notif_iter *notit = data; | |
2cf1d51e | 2525 | struct bt_ctf_field *length_field = NULL; |
e98a2d6e PP |
2526 | uint64_t length; |
2527 | ||
2528 | field_path = bt_ctf_field_type_sequence_get_length_field_path(type); | |
fdf0e7a0 | 2529 | assert(field_path); |
2cf1d51e JG |
2530 | length_field = resolve_field(notit, field_path); |
2531 | if (!length_field) { | |
fdf0e7a0 PP |
2532 | BT_LOGW("Cannot resolve sequence field type's length field path: " |
2533 | "notit-addr=%p, ft-addr=%p", | |
2534 | notit, type); | |
e98a2d6e PP |
2535 | goto end; |
2536 | } | |
2537 | ||
2cf1d51e | 2538 | iret = bt_ctf_field_unsigned_integer_get_value(length_field, &length); |
e98a2d6e | 2539 | if (iret) { |
fdf0e7a0 PP |
2540 | BT_LOGE("Cannot get value of sequence length field: " |
2541 | "notit-addr=%p, field-addr=%p", | |
2542 | notit, length_field); | |
e98a2d6e PP |
2543 | goto end; |
2544 | } | |
2545 | ||
fdf0e7a0 PP |
2546 | seq_field = stack_top(notit->stack)->base; |
2547 | iret = bt_ctf_field_sequence_set_length(seq_field, length_field); | |
2cf1d51e | 2548 | if (iret) { |
fdf0e7a0 PP |
2549 | BT_LOGE("Cannot set sequence field's length field: " |
2550 | "notit-addr=%p, seq-field-addr=%p, " | |
2551 | "length-field-addr=%p, ", | |
2552 | notit, seq_field, length_field); | |
2cf1d51e JG |
2553 | goto end; |
2554 | } | |
fdf0e7a0 | 2555 | |
e98a2d6e PP |
2556 | ret = (int64_t) length; |
2557 | ||
2558 | end: | |
2cf1d51e | 2559 | BT_PUT(length_field); |
e98a2d6e PP |
2560 | BT_PUT(field_path); |
2561 | ||
2562 | return ret; | |
2563 | } | |
2564 | ||
2565 | static | |
2566 | struct bt_ctf_field_type *btr_get_variant_type_cb( | |
2567 | struct bt_ctf_field_type *type, void *data) | |
2568 | { | |
2569 | struct bt_ctf_field_path *path; | |
2570 | struct bt_ctf_notif_iter *notit = data; | |
fdf0e7a0 | 2571 | struct bt_ctf_field *var_field; |
e98a2d6e PP |
2572 | struct bt_ctf_field *tag_field = NULL; |
2573 | struct bt_ctf_field *selected_field = NULL; | |
2574 | struct bt_ctf_field_type *selected_field_type = NULL; | |
2575 | ||
2576 | path = bt_ctf_field_type_variant_get_tag_field_path(type); | |
fdf0e7a0 | 2577 | assert(path); |
e98a2d6e PP |
2578 | tag_field = resolve_field(notit, path); |
2579 | if (!tag_field) { | |
fdf0e7a0 PP |
2580 | BT_LOGW("Cannot resolve variant field type's tag field path: " |
2581 | "notit-addr=%p, ft-addr=%p", | |
2582 | notit, type); | |
e98a2d6e PP |
2583 | goto end; |
2584 | } | |
2585 | ||
2586 | /* | |
2587 | * We found the enumeration tag field instance which should be | |
2588 | * able to select a current field for this variant. This | |
2589 | * callback function we're in is called _after_ | |
2590 | * compound_begin(), so the current stack top's base field is | |
2591 | * the variant field in question. We get the selected field here | |
2592 | * thanks to this tag field (thus creating the selected field), | |
2593 | * which will also provide us with its type. Then, this field | |
2594 | * will remain the current selected one until the next callback | |
2595 | * function call which is used to fill the current selected | |
2596 | * field. | |
2597 | */ | |
fdf0e7a0 PP |
2598 | var_field = stack_top(notit->stack)->base; |
2599 | selected_field = bt_ctf_field_variant_get_field(var_field, tag_field); | |
e98a2d6e | 2600 | if (!selected_field) { |
fdf0e7a0 PP |
2601 | BT_LOGW("Cannot get variant field's selection using tag field: " |
2602 | "notit-addr=%p, var-field-addr=%p, tag-field-addr=%p", | |
2603 | notit, var_field, tag_field); | |
e98a2d6e PP |
2604 | goto end; |
2605 | } | |
2606 | ||
2607 | selected_field_type = bt_ctf_field_get_type(selected_field); | |
2608 | ||
2609 | end: | |
2610 | BT_PUT(tag_field); | |
2611 | BT_PUT(selected_field); | |
f77ae72a | 2612 | BT_PUT(path); |
e98a2d6e PP |
2613 | |
2614 | return selected_field_type; | |
2615 | } | |
2616 | ||
1556a1af JG |
2617 | static |
2618 | int set_event_clocks(struct bt_ctf_event *event, | |
2619 | struct bt_ctf_notif_iter *notit) | |
2620 | { | |
2621 | int ret; | |
2622 | GHashTableIter iter; | |
ac0c6bdd | 2623 | struct bt_ctf_clock_class *clock_class; |
1556a1af JG |
2624 | uint64_t *clock_state; |
2625 | ||
2626 | g_hash_table_iter_init(&iter, notit->clock_states); | |
2627 | ||
ac0c6bdd | 2628 | while (g_hash_table_iter_next(&iter, (gpointer) &clock_class, |
1556a1af JG |
2629 | (gpointer) &clock_state)) { |
2630 | struct bt_ctf_clock_value *clock_value; | |
2631 | ||
ac0c6bdd PP |
2632 | clock_value = bt_ctf_clock_value_create(clock_class, |
2633 | *clock_state); | |
1556a1af | 2634 | if (!clock_value) { |
fdf0e7a0 PP |
2635 | BT_LOGE("Cannot create clock value from clock class: " |
2636 | "notit-addr=%p, clock-class-addr=%p, " | |
2637 | "clock-class-name=\"%s\"", | |
2638 | notit, clock_class, | |
2639 | bt_ctf_clock_class_get_name(clock_class)); | |
1556a1af JG |
2640 | ret = -1; |
2641 | goto end; | |
2642 | } | |
3f3c46b8 | 2643 | ret = bt_ctf_event_set_clock_value(event, clock_value); |
1556a1af JG |
2644 | bt_put(clock_value); |
2645 | if (ret) { | |
fdf0e7a0 PP |
2646 | struct bt_ctf_event_class *event_class = |
2647 | bt_ctf_event_get_class(event); | |
2648 | ||
2649 | assert(event_class); | |
2650 | BT_LOGE("Cannot set event's clock value: " | |
2651 | "notit-addr=%p, event-addr=%p, " | |
2652 | "event-class-name=\"%s\", " | |
2653 | "event-class-id=%" PRId64 ", " | |
2654 | "clock-class-addr=%p, " | |
2655 | "clock-class-name=\"%s\", " | |
2656 | "clock-value-addr=%p", | |
2657 | notit, event, | |
2658 | bt_ctf_event_class_get_name(event_class), | |
2659 | bt_ctf_event_class_get_id(event_class), | |
2660 | clock_class, | |
2661 | bt_ctf_clock_class_get_name(clock_class), | |
2662 | clock_value); | |
2663 | bt_put(event_class); | |
1556a1af JG |
2664 | goto end; |
2665 | } | |
2666 | } | |
fdf0e7a0 | 2667 | |
1556a1af JG |
2668 | ret = 0; |
2669 | end: | |
2670 | return ret; | |
2671 | } | |
2672 | ||
78586d8a JG |
2673 | static |
2674 | struct bt_ctf_event *create_event(struct bt_ctf_notif_iter *notit) | |
e98a2d6e | 2675 | { |
e98a2d6e | 2676 | int ret; |
78586d8a | 2677 | struct bt_ctf_event *event; |
e98a2d6e | 2678 | |
fdf0e7a0 PP |
2679 | BT_LOGV("Creating event for event notification: " |
2680 | "notit-addr=%p, event-class-addr=%p, " | |
2681 | "event-class-name=\"%s\", " | |
2682 | "event-class-id=%" PRId64, | |
2683 | notit, notit->meta.event_class, | |
2684 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2685 | bt_ctf_event_class_get_id(notit->meta.event_class)); | |
2686 | ||
78586d8a | 2687 | /* Create event object. */ |
e98a2d6e PP |
2688 | event = bt_ctf_event_create(notit->meta.event_class); |
2689 | if (!event) { | |
fdf0e7a0 PP |
2690 | BT_LOGE("Cannot create event: " |
2691 | "notit-addr=%p, event-class-addr=%p, " | |
2692 | "event-class-name=\"%s\", " | |
2693 | "event-class-id=%" PRId64, | |
2694 | notit, notit->meta.event_class, | |
2695 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2696 | bt_ctf_event_class_get_id(notit->meta.event_class)); | |
e98a2d6e PP |
2697 | goto error; |
2698 | } | |
2699 | ||
78586d8a | 2700 | /* Set header, stream event context, context, and payload fields. */ |
e98a2d6e PP |
2701 | ret = bt_ctf_event_set_header(event, |
2702 | notit->dscopes.stream_event_header); | |
2703 | if (ret) { | |
fdf0e7a0 PP |
2704 | BT_LOGE("Cannot set event's header field: " |
2705 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2706 | "event-class-name=\"%s\", " | |
2707 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2708 | notit, event, notit->meta.event_class, | |
2709 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2710 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2711 | notit->dscopes.stream_event_header); | |
e98a2d6e PP |
2712 | goto error; |
2713 | } | |
2714 | ||
2715 | ret = bt_ctf_event_set_stream_event_context(event, | |
2716 | notit->dscopes.stream_event_context); | |
2717 | if (ret) { | |
fdf0e7a0 PP |
2718 | BT_LOGE("Cannot set event's context field: " |
2719 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2720 | "event-class-name=\"%s\", " | |
2721 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2722 | notit, event, notit->meta.event_class, | |
2723 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2724 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2725 | notit->dscopes.stream_event_context); | |
e98a2d6e PP |
2726 | goto error; |
2727 | } | |
2728 | ||
2729 | ret = bt_ctf_event_set_event_context(event, | |
2730 | notit->dscopes.event_context); | |
2731 | if (ret) { | |
fdf0e7a0 PP |
2732 | BT_LOGE("Cannot set event's stream event context field: " |
2733 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2734 | "event-class-name=\"%s\", " | |
2735 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2736 | notit, event, notit->meta.event_class, | |
2737 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2738 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2739 | notit->dscopes.event_context); | |
e98a2d6e PP |
2740 | goto error; |
2741 | } | |
2742 | ||
9ac68eb1 | 2743 | ret = bt_ctf_event_set_event_payload(event, |
e98a2d6e PP |
2744 | notit->dscopes.event_payload); |
2745 | if (ret) { | |
fdf0e7a0 PP |
2746 | BT_LOGE("Cannot set event's payload field: " |
2747 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2748 | "event-class-name=\"%s\", " | |
2749 | "event-class-id=%" PRId64 ", field-addr=%p", | |
2750 | notit, event, notit->meta.event_class, | |
2751 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2752 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2753 | notit->dscopes.event_payload); | |
e98a2d6e PP |
2754 | goto error; |
2755 | } | |
2756 | ||
1556a1af JG |
2757 | ret = set_event_clocks(event, notit); |
2758 | if (ret) { | |
fdf0e7a0 PP |
2759 | BT_LOGE("Cannot set event's clock values: " |
2760 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2761 | "event-class-name=\"%s\", " | |
2762 | "event-class-id=%" PRId64, | |
2763 | notit, event, notit->meta.event_class, | |
2764 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2765 | bt_ctf_event_class_get_id(notit->meta.event_class)); | |
1556a1af JG |
2766 | goto error; |
2767 | } | |
2768 | ||
78586d8a | 2769 | /* Associate with current packet. */ |
e98a2d6e PP |
2770 | assert(notit->packet); |
2771 | ret = bt_ctf_event_set_packet(event, notit->packet); | |
2772 | if (ret) { | |
fdf0e7a0 PP |
2773 | BT_LOGE("Cannot set event's header field: " |
2774 | "notit-addr=%p, event-addr=%p, event-class-addr=%p, " | |
2775 | "event-class-name=\"%s\", " | |
2776 | "event-class-id=%" PRId64 ", packet-addr=%p", | |
2777 | notit, event, notit->meta.event_class, | |
2778 | bt_ctf_event_class_get_name(notit->meta.event_class), | |
2779 | bt_ctf_event_class_get_id(notit->meta.event_class), | |
2780 | notit->packet); | |
e98a2d6e PP |
2781 | goto error; |
2782 | } | |
2783 | ||
2784 | goto end; | |
fdf0e7a0 | 2785 | |
e98a2d6e PP |
2786 | error: |
2787 | BT_PUT(event); | |
fdf0e7a0 | 2788 | |
e98a2d6e PP |
2789 | end: |
2790 | return event; | |
2791 | } | |
2792 | ||
0659c536 PP |
2793 | static |
2794 | uint64_t get_cur_stream_instance_id(struct bt_ctf_notif_iter *notit) | |
2795 | { | |
2796 | struct bt_ctf_field *stream_instance_id_field = NULL; | |
2797 | uint64_t stream_instance_id = -1ULL; | |
2798 | int ret; | |
2799 | ||
2800 | if (!notit->dscopes.trace_packet_header) { | |
2801 | goto end; | |
2802 | } | |
2803 | ||
2804 | stream_instance_id_field = bt_ctf_field_structure_get_field_by_name( | |
2805 | notit->dscopes.trace_packet_header, "stream_instance_id"); | |
2806 | if (!stream_instance_id_field) { | |
2807 | goto end; | |
2808 | } | |
2809 | ||
2810 | ret = bt_ctf_field_unsigned_integer_get_value(stream_instance_id_field, | |
2811 | &stream_instance_id); | |
2812 | if (ret) { | |
2813 | stream_instance_id = -1ULL; | |
2814 | goto end; | |
2815 | } | |
2816 | ||
2817 | end: | |
2818 | bt_put(stream_instance_id_field); | |
2819 | return stream_instance_id; | |
2820 | } | |
2821 | ||
78586d8a | 2822 | static |
5184a1d6 | 2823 | int set_stream(struct bt_ctf_notif_iter *notit) |
e98a2d6e | 2824 | { |
5184a1d6 | 2825 | int ret = 0; |
e98a2d6e | 2826 | struct bt_ctf_stream *stream = NULL; |
e98a2d6e | 2827 | |
fdf0e7a0 PP |
2828 | BT_LOGV("Calling user function (get stream): notit-addr=%p, " |
2829 | "stream-class-addr=%p, stream-class-name=\"%s\", " | |
2830 | "stream-class-id=%" PRId64, | |
2831 | notit, notit->meta.stream_class, | |
2832 | bt_ctf_stream_class_get_name(notit->meta.stream_class), | |
2833 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
5184a1d6 | 2834 | stream = bt_get(notit->medium.medops.get_stream( |
0659c536 PP |
2835 | notit->meta.stream_class, get_cur_stream_instance_id(notit), |
2836 | notit->medium.data)); | |
5184a1d6 | 2837 | BT_LOGV("User function returned: stream-addr=%p", stream); |
e98a2d6e | 2838 | if (!stream) { |
fdf0e7a0 | 2839 | BT_LOGW_STR("User function failed to return a stream object for the given stream class."); |
5184a1d6 PP |
2840 | ret = -1; |
2841 | goto end; | |
2842 | } | |
2843 | ||
2844 | if (notit->stream && stream != notit->stream) { | |
2845 | BT_LOGW("User function returned a different stream than the previous one for the same sequence of packets."); | |
2846 | ret = -1; | |
2847 | goto end; | |
2848 | } | |
2849 | ||
2850 | BT_MOVE(notit->stream, stream); | |
2851 | ||
2852 | end: | |
2853 | bt_put(stream); | |
2854 | return ret; | |
2855 | } | |
2856 | ||
2857 | static | |
2858 | void create_packet(struct bt_ctf_notif_iter *notit) | |
2859 | { | |
2860 | int ret; | |
2861 | struct bt_ctf_packet *packet = NULL; | |
2862 | ||
2863 | BT_LOGV("Creating packet for packet notification: " | |
2864 | "notit-addr=%p", notit); | |
2865 | ||
2866 | /* Ask the user for the stream */ | |
2867 | ret = set_stream(notit); | |
2868 | if (ret) { | |
e98a2d6e PP |
2869 | goto error; |
2870 | } | |
2871 | ||
fdf0e7a0 PP |
2872 | BT_LOGV("Creating packet from stream: " |
2873 | "notit-addr=%p, stream-addr=%p, " | |
2874 | "stream-class-addr=%p, " | |
2875 | "stream-class-name=\"%s\", " | |
2876 | "stream-class-id=%" PRId64, | |
5184a1d6 | 2877 | notit, notit->stream, notit->meta.stream_class, |
fdf0e7a0 PP |
2878 | bt_ctf_stream_class_get_name(notit->meta.stream_class), |
2879 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
2880 | ||
e98a2d6e | 2881 | /* Create packet */ |
5184a1d6 | 2882 | packet = bt_ctf_packet_create(notit->stream); |
e98a2d6e | 2883 | if (!packet) { |
fdf0e7a0 PP |
2884 | BT_LOGE("Cannot create packet from stream: " |
2885 | "notit-addr=%p, stream-addr=%p, " | |
2886 | "stream-class-addr=%p, " | |
2887 | "stream-class-name=\"%s\", " | |
2888 | "stream-class-id=%" PRId64, | |
5184a1d6 | 2889 | notit, notit->stream, notit->meta.stream_class, |
fdf0e7a0 PP |
2890 | bt_ctf_stream_class_get_name(notit->meta.stream_class), |
2891 | bt_ctf_stream_class_get_id(notit->meta.stream_class)); | |
e98a2d6e PP |
2892 | goto error; |
2893 | } | |
2894 | ||
2895 | /* Set packet's context and header fields */ | |
2896 | if (notit->dscopes.trace_packet_header) { | |
2897 | ret = bt_ctf_packet_set_header(packet, | |
fdf0e7a0 | 2898 | notit->dscopes.trace_packet_header); |
e98a2d6e | 2899 | if (ret) { |
fdf0e7a0 PP |
2900 | BT_LOGE("Cannot set packet's header field: " |
2901 | "notit-addr=%p, packet-addr=%p, " | |
2902 | "stream-addr=%p, " | |
2903 | "stream-class-addr=%p, " | |
2904 | "stream-class-name=\"%s\", " | |
2905 | "stream-class-id=%" PRId64 ", " | |
2906 | "field-addr=%p", | |
5184a1d6 | 2907 | notit, packet, notit->stream, notit->meta.stream_class, |
fdf0e7a0 PP |
2908 | bt_ctf_stream_class_get_name(notit->meta.stream_class), |
2909 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
2910 | notit->dscopes.trace_packet_header); | |
e98a2d6e PP |
2911 | goto error; |
2912 | } | |
2913 | } | |
2914 | ||
2915 | if (notit->dscopes.stream_packet_context) { | |
2916 | ret = bt_ctf_packet_set_context(packet, | |
fdf0e7a0 | 2917 | notit->dscopes.stream_packet_context); |
e98a2d6e | 2918 | if (ret) { |
fdf0e7a0 PP |
2919 | BT_LOGE("Cannot set packet's context field: " |
2920 | "notit-addr=%p, packet-addr=%p, " | |
2921 | "stream-addr=%p, " | |
2922 | "stream-class-addr=%p, " | |
2923 | "stream-class-name=\"%s\", " | |
2924 | "stream-class-id=%" PRId64 ", " | |
2925 | "field-addr=%p", | |
5184a1d6 | 2926 | notit, packet, notit->stream, notit->meta.stream_class, |
fdf0e7a0 PP |
2927 | bt_ctf_stream_class_get_name(notit->meta.stream_class), |
2928 | bt_ctf_stream_class_get_id(notit->meta.stream_class), | |
2929 | notit->dscopes.trace_packet_header); | |
e98a2d6e PP |
2930 | goto error; |
2931 | } | |
2932 | } | |
2933 | ||
2934 | goto end; | |
fdf0e7a0 | 2935 | |
e98a2d6e PP |
2936 | error: |
2937 | BT_PUT(packet); | |
fdf0e7a0 | 2938 | |
e98a2d6e PP |
2939 | end: |
2940 | BT_MOVE(notit->packet, packet); | |
2941 | } | |
2942 | ||
78586d8a JG |
2943 | static |
2944 | void notify_new_packet(struct bt_ctf_notif_iter *notit, | |
2945 | struct bt_notification **notification) | |
e98a2d6e | 2946 | { |
78586d8a | 2947 | struct bt_notification *ret; |
e98a2d6e | 2948 | |
78586d8a | 2949 | /* Initialize the iterator's current packet */ |
e98a2d6e PP |
2950 | create_packet(notit); |
2951 | if (!notit->packet) { | |
fdf0e7a0 PP |
2952 | BT_LOGE("Cannot create packet for packet notification: " |
2953 | "notit-addr=%p", notit); | |
78586d8a | 2954 | return; |
e98a2d6e PP |
2955 | } |
2956 | ||
ea0e619e | 2957 | ret = bt_notification_packet_begin_create(notit->packet); |
78586d8a | 2958 | if (!ret) { |
fdf0e7a0 PP |
2959 | BT_LOGE("Cannot create packet beginning notification: " |
2960 | "notit-addr=%p, packet-addr=%p", | |
2961 | notit, notit->packet); | |
78586d8a JG |
2962 | return; |
2963 | } | |
2964 | *notification = ret; | |
e98a2d6e PP |
2965 | } |
2966 | ||
78586d8a JG |
2967 | static |
2968 | void notify_end_of_packet(struct bt_ctf_notif_iter *notit, | |
2969 | struct bt_notification **notification) | |
e98a2d6e | 2970 | { |
78586d8a | 2971 | struct bt_notification *ret; |
e98a2d6e | 2972 | |
e98a2d6e | 2973 | if (!notit->packet) { |
78586d8a | 2974 | return; |
e98a2d6e PP |
2975 | } |
2976 | ||
78586d8a JG |
2977 | ret = bt_notification_packet_end_create(notit->packet); |
2978 | if (!ret) { | |
fdf0e7a0 PP |
2979 | BT_LOGE("Cannot create packet end notification: " |
2980 | "notit-addr=%p, packet-addr=%p", | |
2981 | notit, notit->packet); | |
78586d8a JG |
2982 | return; |
2983 | } | |
2984 | BT_PUT(notit->packet); | |
2985 | *notification = ret; | |
e98a2d6e PP |
2986 | } |
2987 | ||
78586d8a JG |
2988 | static |
2989 | void notify_event(struct bt_ctf_notif_iter *notit, | |
0982a26d | 2990 | struct bt_clock_class_priority_map *cc_prio_map, |
78586d8a | 2991 | struct bt_notification **notification) |
e98a2d6e | 2992 | { |
9b876b7b | 2993 | struct bt_ctf_event *event = NULL; |
78586d8a | 2994 | struct bt_notification *ret = NULL; |
e98a2d6e | 2995 | |
9b876b7b PP |
2996 | /* Make sure that the event contains at least one bit of data */ |
2997 | if (notit->buf.at == notit->buf.last_eh_at) { | |
2998 | BT_LOGE("Cannot create empty event with 0 bits of data: " | |
2999 | "notit-addr=%p, packet-cur=%zu", | |
3000 | notit, packet_at(notit)); | |
3001 | goto end; | |
3002 | } | |
3003 | ||
e98a2d6e PP |
3004 | /* Create event */ |
3005 | event = create_event(notit); | |
3006 | if (!event) { | |
fdf0e7a0 PP |
3007 | BT_LOGE("Cannot create event for event notification: " |
3008 | "notit-addr=%p", notit); | |
78586d8a | 3009 | goto end; |
e98a2d6e | 3010 | } |
e98a2d6e | 3011 | |
0982a26d | 3012 | ret = bt_notification_event_create(event, cc_prio_map); |
78586d8a | 3013 | if (!ret) { |
fdf0e7a0 PP |
3014 | BT_LOGE("Cannot create event notification: " |
3015 | "notit-addr=%p, event-addr=%p, " | |
3016 | "cc-prio-map-addr=%p", | |
3017 | notit, event, cc_prio_map); | |
78586d8a | 3018 | goto end; |
e98a2d6e | 3019 | } |
78586d8a JG |
3020 | *notification = ret; |
3021 | end: | |
3022 | BT_PUT(event); | |
e98a2d6e PP |
3023 | } |
3024 | ||
5f870343 JG |
3025 | static |
3026 | void init_trace_field_path_cache(struct bt_ctf_trace *trace, | |
3027 | struct trace_field_path_cache *trace_field_path_cache) | |
3028 | { | |
3029 | int stream_id = -1; | |
3030 | int stream_instance_id = -1; | |
3031 | int i, count; | |
3032 | struct bt_ctf_field_type *packet_header = NULL; | |
3033 | ||
3034 | packet_header = bt_ctf_trace_get_packet_header_type(trace); | |
3035 | if (!packet_header) { | |
3036 | goto end; | |
3037 | } | |
3038 | ||
3039 | if (!bt_ctf_field_type_is_structure(packet_header)) { | |
3040 | goto end; | |
3041 | } | |
3042 | ||
3043 | count = bt_ctf_field_type_structure_get_field_count(packet_header); | |
fdf0e7a0 | 3044 | assert(count >= 0); |
5f870343 JG |
3045 | |
3046 | for (i = 0; (i < count && (stream_id == -1 || stream_instance_id == -1)); i++) { | |
3047 | int ret; | |
3048 | const char *field_name; | |
3049 | ||
3050 | ret = bt_ctf_field_type_structure_get_field(packet_header, | |
3051 | &field_name, NULL, i); | |
3052 | if (ret) { | |
fdf0e7a0 PP |
3053 | BT_LOGE("Cannot get structure field's field: " |
3054 | "field-addr=%p, index=%d", | |
3055 | packet_header, i); | |
5f870343 JG |
3056 | goto end; |
3057 | } | |
3058 | ||
3059 | if (stream_id == -1 && !strcmp(field_name, "stream_id")) { | |
3060 | stream_id = i; | |
3061 | } else if (stream_instance_id == -1 && | |
3062 | !strcmp(field_name, "stream_instance_id")) { | |
3063 | stream_instance_id = i; | |
3064 | } | |
3065 | } | |
fdf0e7a0 | 3066 | |
5f870343 JG |
3067 | end: |
3068 | trace_field_path_cache->stream_id = stream_id; | |
3069 | trace_field_path_cache->stream_instance_id = stream_instance_id; | |
3070 | BT_PUT(packet_header); | |
3071 | } | |
3072 | ||
c44c3e70 | 3073 | BT_HIDDEN |
e98a2d6e PP |
3074 | struct bt_ctf_notif_iter *bt_ctf_notif_iter_create(struct bt_ctf_trace *trace, |
3075 | size_t max_request_sz, | |
55314f2a | 3076 | struct bt_ctf_notif_iter_medium_ops medops, void *data) |
e98a2d6e PP |
3077 | { |
3078 | struct bt_ctf_notif_iter *notit = NULL; | |
3079 | struct bt_ctf_btr_cbs cbs = { | |
3080 | .types = { | |
3081 | .signed_int = btr_signed_int_cb, | |
3082 | .unsigned_int = btr_unsigned_int_cb, | |
3083 | .floating_point = btr_floating_point_cb, | |
3084 | .string_begin = btr_string_begin_cb, | |
3085 | .string = btr_string_cb, | |
3086 | .string_end = btr_string_end_cb, | |
3087 | .compound_begin = btr_compound_begin_cb, | |
3088 | .compound_end = btr_compound_end_cb, | |
3089 | }, | |
3090 | .query = { | |
3091 | .get_sequence_length = btr_get_sequence_length_cb, | |
3092 | .get_variant_type = btr_get_variant_type_cb, | |
3093 | }, | |
3094 | }; | |
3095 | ||
3096 | assert(trace); | |
3097 | assert(medops.request_bytes); | |
f3985ab1 | 3098 | assert(medops.get_stream); |
fdf0e7a0 PP |
3099 | BT_LOGD("Creating CTF plugin notification iterator: " |
3100 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
3101 | "data=%p", | |
3102 | trace, bt_ctf_trace_get_name(trace), max_request_sz, data); | |
e98a2d6e PP |
3103 | notit = g_new0(struct bt_ctf_notif_iter, 1); |
3104 | if (!notit) { | |
fdf0e7a0 | 3105 | BT_LOGE_STR("Failed to allocate one CTF plugin notification iterator."); |
e98a2d6e PP |
3106 | goto end; |
3107 | } | |
c44c3e70 | 3108 | notit->clock_states = g_hash_table_new_full(g_direct_hash, |
fdf0e7a0 | 3109 | g_direct_equal, bt_put, g_free); |
c44c3e70 | 3110 | if (!notit->clock_states) { |
fdf0e7a0 | 3111 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
c44c3e70 JG |
3112 | goto error; |
3113 | } | |
35d47007 | 3114 | notit->meta.trace = bt_get(trace); |
e98a2d6e PP |
3115 | notit->medium.medops = medops; |
3116 | notit->medium.max_request_sz = max_request_sz; | |
3117 | notit->medium.data = data; | |
e98a2d6e PP |
3118 | notit->stack = stack_new(notit); |
3119 | if (!notit->stack) { | |
fdf0e7a0 | 3120 | BT_LOGE_STR("Failed to create field stack."); |
c44c3e70 | 3121 | goto error; |
e98a2d6e PP |
3122 | } |
3123 | ||
55314f2a | 3124 | notit->btr = bt_ctf_btr_create(cbs, notit); |
e98a2d6e | 3125 | if (!notit->btr) { |
fdf0e7a0 | 3126 | BT_LOGE_STR("Failed to create binary type reader (BTR)."); |
c44c3e70 | 3127 | goto error; |
e98a2d6e PP |
3128 | } |
3129 | ||
3130 | bt_ctf_notif_iter_reset(notit); | |
5f870343 JG |
3131 | init_trace_field_path_cache(trace, ¬it->trace_field_path_cache); |
3132 | notit->sc_field_path_caches = g_hash_table_new_full(g_direct_hash, | |
fdf0e7a0 | 3133 | g_direct_equal, bt_put, g_free); |
5f870343 | 3134 | if (!notit->sc_field_path_caches) { |
fdf0e7a0 | 3135 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
5f870343 JG |
3136 | goto error; |
3137 | } | |
3138 | ||
3139 | notit->field_overrides = g_hash_table_new_full(g_direct_hash, | |
fdf0e7a0 | 3140 | g_direct_equal, bt_put, g_free); |
5f870343 | 3141 | if (!notit->field_overrides) { |
fdf0e7a0 | 3142 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
5f870343 JG |
3143 | goto error; |
3144 | } | |
3145 | ||
fdf0e7a0 PP |
3146 | BT_LOGD("Created CTF plugin notification iterator: " |
3147 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
3148 | "data=%p, notit-addr=%p", | |
3149 | trace, bt_ctf_trace_get_name(trace), max_request_sz, data, | |
3150 | notit); | |
bb230c9b | 3151 | notit->cur_packet_offset = 0; |
fdf0e7a0 | 3152 | |
e98a2d6e PP |
3153 | end: |
3154 | return notit; | |
fdf0e7a0 | 3155 | |
c44c3e70 JG |
3156 | error: |
3157 | bt_ctf_notif_iter_destroy(notit); | |
3158 | notit = NULL; | |
3159 | goto end; | |
e98a2d6e PP |
3160 | } |
3161 | ||
3162 | void bt_ctf_notif_iter_destroy(struct bt_ctf_notif_iter *notit) | |
3163 | { | |
3164 | BT_PUT(notit->meta.trace); | |
3165 | BT_PUT(notit->meta.stream_class); | |
3166 | BT_PUT(notit->meta.event_class); | |
3167 | BT_PUT(notit->packet); | |
5184a1d6 | 3168 | BT_PUT(notit->stream); |
5f870343 | 3169 | BT_PUT(notit->cur_timestamp_end); |
e98a2d6e PP |
3170 | put_all_dscopes(notit); |
3171 | ||
fdf0e7a0 PP |
3172 | BT_LOGD("Destroying CTF plugin notification iterator: addr=%p", notit); |
3173 | ||
e98a2d6e | 3174 | if (notit->stack) { |
fdf0e7a0 | 3175 | BT_LOGD_STR("Destroying field stack."); |
e98a2d6e PP |
3176 | stack_destroy(notit->stack); |
3177 | } | |
3178 | ||
3179 | if (notit->btr) { | |
fdf0e7a0 | 3180 | BT_LOGD("Destroying BTR: btr-addr=%p", notit->btr); |
e98a2d6e PP |
3181 | bt_ctf_btr_destroy(notit->btr); |
3182 | } | |
3183 | ||
c44c3e70 JG |
3184 | if (notit->clock_states) { |
3185 | g_hash_table_destroy(notit->clock_states); | |
3186 | } | |
5f870343 JG |
3187 | |
3188 | if (notit->sc_field_path_caches) { | |
3189 | g_hash_table_destroy(notit->sc_field_path_caches); | |
3190 | } | |
3191 | ||
3192 | if (notit->field_overrides) { | |
3193 | g_hash_table_destroy(notit->field_overrides); | |
3194 | } | |
fdf0e7a0 | 3195 | |
e98a2d6e PP |
3196 | g_free(notit); |
3197 | } | |
3198 | ||
3199 | enum bt_ctf_notif_iter_status bt_ctf_notif_iter_get_next_notification( | |
3200 | struct bt_ctf_notif_iter *notit, | |
0982a26d | 3201 | struct bt_clock_class_priority_map *cc_prio_map, |
78586d8a | 3202 | struct bt_notification **notification) |
e98a2d6e PP |
3203 | { |
3204 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; | |
3205 | ||
3206 | assert(notit); | |
3207 | assert(notification); | |
3208 | ||
fdf0e7a0 PP |
3209 | BT_LOGV("Getting next notification: notit-addr=%p, cc-prio-map-addr=%p", |
3210 | notit, cc_prio_map); | |
3211 | ||
e98a2d6e PP |
3212 | while (true) { |
3213 | status = handle_state(notit); | |
7cdc2bab | 3214 | if (status == BT_CTF_NOTIF_ITER_STATUS_AGAIN) { |
fdf0e7a0 | 3215 | BT_LOGV_STR("Medium returned BT_CTF_NOTIF_ITER_STATUS_AGAIN."); |
7cdc2bab MD |
3216 | goto end; |
3217 | } | |
e98a2d6e PP |
3218 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { |
3219 | if (status == BT_CTF_NOTIF_ITER_STATUS_EOF) { | |
fdf0e7a0 | 3220 | BT_LOGV_STR("Medium returned BT_CTF_NOTIF_ITER_STATUS_EOF."); |
e98a2d6e | 3221 | } else { |
fdf0e7a0 PP |
3222 | BT_LOGW("Cannot handle state: " |
3223 | "notit-addr=%p, state=%s", | |
3224 | notit, state_string(notit->state)); | |
e98a2d6e PP |
3225 | } |
3226 | goto end; | |
3227 | } | |
3228 | ||
3229 | switch (notit->state) { | |
3230 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
fdf0e7a0 | 3231 | /* notify_new_packet() logs errors */ |
e98a2d6e PP |
3232 | notify_new_packet(notit, notification); |
3233 | if (!*notification) { | |
3234 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
3235 | } | |
3236 | goto end; | |
3237 | case STATE_EMIT_NOTIF_EVENT: | |
fdf0e7a0 | 3238 | /* notify_event() logs errors */ |
0982a26d | 3239 | notify_event(notit, cc_prio_map, notification); |
e98a2d6e PP |
3240 | if (!*notification) { |
3241 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
3242 | } | |
3243 | goto end; | |
3244 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
5f870343 JG |
3245 | /* Update clock with timestamp_end field. */ |
3246 | if (notit->cur_timestamp_end) { | |
3247 | enum bt_ctf_btr_status btr_status; | |
3248 | struct bt_ctf_field_type *field_type = | |
3249 | bt_ctf_field_get_type( | |
3250 | notit->cur_timestamp_end); | |
3251 | ||
fdf0e7a0 | 3252 | assert(field_type); |
f45bfe88 PP |
3253 | btr_status = update_clock(notit, |
3254 | notit->cur_timestamp_end); | |
5f870343 JG |
3255 | BT_PUT(field_type); |
3256 | if (btr_status != BT_CTF_BTR_STATUS_OK) { | |
fdf0e7a0 PP |
3257 | BT_LOGW("Cannot update stream's clock value: " |
3258 | "notit-addr=%p", notit); | |
5f870343 JG |
3259 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; |
3260 | goto end; | |
3261 | } | |
3262 | } | |
3263 | ||
fdf0e7a0 | 3264 | /* notify_end_of_packet() logs errors */ |
e98a2d6e PP |
3265 | notify_end_of_packet(notit, notification); |
3266 | if (!*notification) { | |
3267 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
3268 | } | |
3269 | goto end; | |
3270 | default: | |
3271 | /* Non-emitting state: continue */ | |
3272 | break; | |
3273 | } | |
3274 | } | |
3275 | ||
3276 | end: | |
3277 | return status; | |
3278 | } | |
87187cbf PP |
3279 | |
3280 | BT_HIDDEN | |
3281 | enum bt_ctf_notif_iter_status bt_ctf_notif_iter_get_packet_header_context_fields( | |
3282 | struct bt_ctf_notif_iter *notit, | |
3283 | struct bt_ctf_field **packet_header_field, | |
3284 | struct bt_ctf_field **packet_context_field) | |
3285 | { | |
bb230c9b | 3286 | int ret; |
87187cbf PP |
3287 | enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK; |
3288 | ||
3289 | assert(notit); | |
3290 | ||
3291 | if (notit->state == STATE_EMIT_NOTIF_NEW_PACKET) { | |
3292 | /* We're already there */ | |
3293 | goto set_fields; | |
3294 | } | |
3295 | ||
3296 | while (true) { | |
3297 | status = handle_state(notit); | |
3298 | if (status == BT_CTF_NOTIF_ITER_STATUS_AGAIN) { | |
fdf0e7a0 | 3299 | BT_LOGV_STR("Medium returned BT_CTF_NOTIF_ITER_STATUS_AGAIN."); |
87187cbf PP |
3300 | goto end; |
3301 | } | |
3302 | if (status != BT_CTF_NOTIF_ITER_STATUS_OK) { | |
3303 | if (status == BT_CTF_NOTIF_ITER_STATUS_EOF) { | |
fdf0e7a0 | 3304 | BT_LOGV_STR("Medium returned BT_CTF_NOTIF_ITER_STATUS_EOF."); |
87187cbf | 3305 | } else { |
fdf0e7a0 PP |
3306 | BT_LOGW("Cannot handle state: " |
3307 | "notit-addr=%p, state=%s", | |
3308 | notit, state_string(notit->state)); | |
87187cbf PP |
3309 | } |
3310 | goto end; | |
3311 | } | |
3312 | ||
3313 | switch (notit->state) { | |
3314 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
3315 | /* | |
3316 | * Packet header and context fields are | |
3317 | * potentially decoded (or they don't exist). | |
3318 | */ | |
3319 | goto set_fields; | |
3320 | case STATE_INIT: | |
3321 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
3322 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
3323 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
3324 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
3325 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
3326 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
3327 | /* Non-emitting state: continue */ | |
3328 | break; | |
3329 | default: | |
3330 | /* | |
3331 | * We should never get past the | |
3332 | * STATE_EMIT_NOTIF_NEW_PACKET state. | |
3333 | */ | |
fdf0e7a0 PP |
3334 | BT_LOGF("Unexpected state: notit-addr=%p, state=%s", |
3335 | notit, state_string(notit->state)); | |
0fbb9a9f | 3336 | abort(); |
87187cbf PP |
3337 | } |
3338 | } | |
3339 | ||
3340 | set_fields: | |
3341 | if (packet_header_field) { | |
3342 | *packet_header_field = bt_get(notit->dscopes.trace_packet_header); | |
3343 | } | |
3344 | ||
3345 | if (packet_context_field) { | |
3346 | *packet_context_field = bt_get(notit->dscopes.stream_packet_context); | |
3347 | } | |
3348 | ||
bb230c9b JG |
3349 | ret = set_current_packet_content_sizes(notit); |
3350 | if (ret) { | |
3351 | status = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
3352 | goto end; | |
3353 | } | |
87187cbf PP |
3354 | end: |
3355 | return status; | |
3356 | } | |
55fa6491 PP |
3357 | |
3358 | BT_HIDDEN | |
3359 | void bt_ctf_notif_iter_set_medops_data(struct bt_ctf_notif_iter *notit, | |
3360 | void *medops_data) | |
3361 | { | |
3362 | assert(notit); | |
3363 | notit->medium.data = medops_data; | |
3364 | } | |
bb230c9b JG |
3365 | |
3366 | BT_HIDDEN | |
3367 | enum bt_ctf_notif_iter_status bt_ctf_notif_iter_seek( | |
3368 | struct bt_ctf_notif_iter *notit, off_t offset) | |
3369 | { | |
3370 | enum bt_ctf_notif_iter_status ret = BT_CTF_NOTIF_ITER_STATUS_OK; | |
3371 | enum bt_ctf_notif_iter_medium_status medium_status; | |
3372 | ||
3373 | assert(notit); | |
3374 | if (offset < 0) { | |
3375 | BT_LOGE("Cannot seek to negative offset: offset=%jd", offset); | |
3376 | ret = BT_CTF_NOTIF_ITER_STATUS_INVAL; | |
3377 | goto end; | |
3378 | } | |
3379 | ||
3380 | if (!notit->medium.medops.seek) { | |
3381 | ret = BT_CTF_NOTIF_ITER_STATUS_UNSUPPORTED; | |
3382 | BT_LOGD("Aborting seek as the iterator's underlying media does not implement seek support."); | |
3383 | goto end; | |
3384 | } | |
3385 | ||
3386 | medium_status = notit->medium.medops.seek( | |
3387 | BT_CTF_NOTIF_ITER_SEEK_WHENCE_SET, offset, | |
3388 | notit->medium.data); | |
3389 | if (medium_status != BT_CTF_NOTIF_ITER_MEDIUM_STATUS_OK) { | |
3390 | if (medium_status == BT_CTF_NOTIF_ITER_MEDIUM_STATUS_EOF) { | |
3391 | ret = BT_CTF_NOTIF_ITER_STATUS_EOF; | |
3392 | } else { | |
3393 | ret = BT_CTF_NOTIF_ITER_STATUS_ERROR; | |
3394 | goto end; | |
3395 | } | |
3396 | } | |
3397 | ||
3398 | bt_ctf_notif_iter_reset(notit); | |
3399 | notit->cur_packet_offset = offset; | |
3400 | end: | |
3401 | return ret; | |
3402 | } | |
3403 | ||
3404 | BT_HIDDEN | |
3405 | off_t bt_ctf_notif_iter_get_current_packet_offset( | |
3406 | struct bt_ctf_notif_iter *notit) | |
3407 | { | |
3408 | assert(notit); | |
3409 | return notit->cur_packet_offset; | |
3410 | } | |
3411 | ||
3412 | BT_HIDDEN | |
3413 | off_t bt_ctf_notif_iter_get_current_packet_size( | |
3414 | struct bt_ctf_notif_iter *notit) | |
3415 | { | |
3416 | assert(notit); | |
3417 | return notit->cur_packet_size; | |
3418 | } |