Commit | Line | Data |
---|---|---|
e98a2d6e | 1 | /* |
d6e69534 | 2 | * Babeltrace - CTF message iterator |
06a626b8 | 3 | * |
44c440bc PP |
4 | * Copyright (c) 2015-2018 EfficiOS Inc. and Linux Foundation |
5 | * Copyright (c) 2015-2018 Philippe Proulx <pproulx@efficios.com> | |
e98a2d6e PP |
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 | ||
ea14c7dd | 26 | #define BT_LOG_OUTPUT_LEVEL (notit->log_level) |
350ad6c1 | 27 | #define BT_LOG_TAG "PLUGIN/CTF/MSG-ITER" |
ea14c7dd | 28 | #include "logging/log.h" |
fdf0e7a0 | 29 | |
e98a2d6e PP |
30 | #include <stdint.h> |
31 | #include <inttypes.h> | |
32 | #include <stdio.h> | |
33 | #include <stddef.h> | |
34 | #include <stdbool.h> | |
578e048b | 35 | #include "common/assert.h" |
e98a2d6e | 36 | #include <string.h> |
3fadfbc0 | 37 | #include <babeltrace2/babeltrace.h> |
578e048b | 38 | #include "common/common.h" |
e98a2d6e | 39 | #include <glib.h> |
0fbb9a9f | 40 | #include <stdlib.h> |
e98a2d6e | 41 | |
d6e69534 | 42 | #include "msg-iter.h" |
5cd6d0e5 | 43 | #include "../bfcr/bfcr.h" |
e98a2d6e | 44 | |
d6e69534 | 45 | struct bt_msg_iter; |
e98a2d6e PP |
46 | |
47 | /* A visit stack entry */ | |
48 | struct stack_entry { | |
49 | /* | |
50 | * Current base field, one of: | |
51 | * | |
52 | * * string | |
53 | * * structure | |
54 | * * array | |
55 | * * sequence | |
56 | * * variant | |
57 | * | |
312c056a | 58 | * Field is borrowed. |
e98a2d6e | 59 | */ |
b19ff26f | 60 | bt_field *base; |
e98a2d6e | 61 | |
44c440bc | 62 | /* Index of next field to set */ |
e98a2d6e PP |
63 | size_t index; |
64 | }; | |
65 | ||
ea14c7dd PP |
66 | struct bt_msg_iter; |
67 | ||
e98a2d6e PP |
68 | /* Visit stack */ |
69 | struct stack { | |
ea14c7dd PP |
70 | struct bt_msg_iter *notit; |
71 | ||
afe86a06 PP |
72 | /* Entries (struct stack_entry) */ |
73 | GArray *entries; | |
74 | ||
75 | /* Number of active entries */ | |
76 | size_t size; | |
e98a2d6e PP |
77 | }; |
78 | ||
79 | /* State */ | |
80 | enum state { | |
81 | STATE_INIT, | |
82 | STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN, | |
83 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
84 | STATE_AFTER_TRACE_PACKET_HEADER, | |
85 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN, | |
86 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
87 | STATE_AFTER_STREAM_PACKET_CONTEXT, | |
495490c5 | 88 | STATE_CHECK_EMIT_MSG_STREAM_BEGINNING, |
fc917f65 PP |
89 | STATE_EMIT_MSG_STREAM_BEGINNING, |
90 | STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING, | |
495490c5 PP |
91 | STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS, |
92 | STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS, | |
93 | STATE_EMIT_MSG_DISCARDED_EVENTS, | |
94 | STATE_EMIT_MSG_DISCARDED_PACKETS, | |
fc917f65 | 95 | STATE_EMIT_MSG_PACKET_BEGINNING, |
44c440bc PP |
96 | STATE_DSCOPE_EVENT_HEADER_BEGIN, |
97 | STATE_DSCOPE_EVENT_HEADER_CONTINUE, | |
98 | STATE_AFTER_EVENT_HEADER, | |
99 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN, | |
100 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE, | |
101 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN, | |
102 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE, | |
e98a2d6e PP |
103 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, |
104 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
d6e69534 | 105 | STATE_EMIT_MSG_EVENT, |
e98a2d6e | 106 | STATE_SKIP_PACKET_PADDING, |
fc917f65 PP |
107 | STATE_EMIT_MSG_PACKET_END_MULTI, |
108 | STATE_EMIT_MSG_PACKET_END_SINGLE, | |
495490c5 | 109 | STATE_CHECK_EMIT_MSG_STREAM_ACTIVITY_END, |
fc917f65 PP |
110 | STATE_EMIT_MSG_STREAM_ACTIVITY_END, |
111 | STATE_EMIT_MSG_STREAM_END, | |
112 | STATE_DONE, | |
e98a2d6e PP |
113 | }; |
114 | ||
495490c5 PP |
115 | struct end_of_packet_snapshots { |
116 | uint64_t discarded_events; | |
117 | uint64_t packets; | |
118 | uint64_t beginning_clock; | |
119 | uint64_t end_clock; | |
120 | }; | |
121 | ||
d6e69534 PP |
122 | /* CTF message iterator */ |
123 | struct bt_msg_iter { | |
e98a2d6e PP |
124 | /* Visit stack */ |
125 | struct stack *stack; | |
126 | ||
d6e69534 PP |
127 | /* Current message iterator to create messages (weak) */ |
128 | bt_self_message_iterator *msg_iter; | |
5c563278 | 129 | |
fc917f65 PP |
130 | /* |
131 | * True to emit stream beginning and stream activity beginning | |
132 | * messages. | |
133 | */ | |
134 | bool emit_stream_begin_msg; | |
135 | ||
495490c5 | 136 | /* True to emit stream end and stream activity end messages */ |
fc917f65 PP |
137 | bool emit_stream_end_msg; |
138 | ||
495490c5 PP |
139 | /* True to set the stream */ |
140 | bool set_stream; | |
141 | ||
e98a2d6e PP |
142 | /* |
143 | * Current dynamic scope field pointer. | |
144 | * | |
312c056a PP |
145 | * This is set by read_dscope_begin_state() and contains the |
146 | * value of one of the pointers in `dscopes` below. | |
e98a2d6e | 147 | */ |
b19ff26f | 148 | bt_field *cur_dscope_field; |
e98a2d6e | 149 | |
44c440bc PP |
150 | /* |
151 | * True if we're done filling a string field from a text | |
152 | * array/sequence payload. | |
153 | */ | |
154 | bool done_filling_string; | |
155 | ||
156 | /* Trace and classes */ | |
41693723 PP |
157 | /* True to set IR fields */ |
158 | bool set_ir_fields; | |
159 | ||
e98a2d6e | 160 | struct { |
44c440bc PP |
161 | struct ctf_trace_class *tc; |
162 | struct ctf_stream_class *sc; | |
163 | struct ctf_event_class *ec; | |
e98a2d6e PP |
164 | } meta; |
165 | ||
83ebb7f1 | 166 | /* Current packet context field wrapper (NULL if not created yet) */ |
b19ff26f | 167 | bt_packet_context_field *packet_context_field; |
312c056a | 168 | |
e98a2d6e | 169 | /* Current packet (NULL if not created yet) */ |
b19ff26f | 170 | bt_packet *packet; |
e98a2d6e | 171 | |
af87daef | 172 | /* Current stream (NULL if not set yet) */ |
b19ff26f | 173 | bt_stream *stream; |
af87daef | 174 | |
312c056a | 175 | /* Current event (NULL if not created yet) */ |
b19ff26f | 176 | bt_event *event; |
312c056a | 177 | |
d6e69534 PP |
178 | /* Current event message (NULL if not created yet) */ |
179 | bt_message *event_msg; | |
312c056a | 180 | |
44c440bc | 181 | /* Database of current dynamic scopes */ |
e98a2d6e | 182 | struct { |
b19ff26f | 183 | bt_field *stream_packet_context; |
b19ff26f PP |
184 | bt_field *event_common_context; |
185 | bt_field *event_spec_context; | |
186 | bt_field *event_payload; | |
e98a2d6e PP |
187 | } dscopes; |
188 | ||
189 | /* Current state */ | |
190 | enum state state; | |
191 | ||
2cf1d51e | 192 | /* Current medium buffer data */ |
e98a2d6e PP |
193 | struct { |
194 | /* Last address provided by medium */ | |
195 | const uint8_t *addr; | |
196 | ||
197 | /* Buffer size provided by medium (bytes) */ | |
198 | size_t sz; | |
199 | ||
200 | /* Offset within whole packet of addr (bits) */ | |
201 | size_t packet_offset; | |
202 | ||
203 | /* Current position from addr (bits) */ | |
204 | size_t at; | |
174e773b PP |
205 | |
206 | /* Position of the last event header from addr (bits) */ | |
207 | size_t last_eh_at; | |
e98a2d6e PP |
208 | } buf; |
209 | ||
210 | /* Binary type reader */ | |
5cd6d0e5 | 211 | struct bt_bfcr *bfcr; |
e98a2d6e | 212 | |
2cf1d51e | 213 | /* Current medium data */ |
e98a2d6e | 214 | struct { |
d6e69534 | 215 | struct bt_msg_iter_medium_ops medops; |
e98a2d6e PP |
216 | size_t max_request_sz; |
217 | void *data; | |
218 | } medium; | |
219 | ||
220 | /* Current packet size (bits) (-1 if unknown) */ | |
44c440bc | 221 | int64_t cur_exp_packet_total_size; |
e98a2d6e PP |
222 | |
223 | /* Current content size (bits) (-1 if unknown) */ | |
44c440bc | 224 | int64_t cur_exp_packet_content_size; |
c44c3e70 | 225 | |
44c440bc PP |
226 | /* Current stream class ID */ |
227 | int64_t cur_stream_class_id; | |
9e0c8dbb | 228 | |
44c440bc PP |
229 | /* Current event class ID */ |
230 | int64_t cur_event_class_id; | |
5f870343 | 231 | |
44c440bc PP |
232 | /* Current data stream ID */ |
233 | int64_t cur_data_stream_id; | |
5f870343 JG |
234 | |
235 | /* | |
44c440bc PP |
236 | * Offset, in the underlying media, of the current packet's |
237 | * start (-1 if unknown). | |
5f870343 | 238 | */ |
44c440bc PP |
239 | off_t cur_packet_offset; |
240 | ||
241 | /* Default clock's current value */ | |
605e1019 | 242 | uint64_t default_clock_snapshot; |
5f870343 | 243 | |
495490c5 PP |
244 | /* End of current packet snapshots */ |
245 | struct end_of_packet_snapshots snapshots; | |
246 | ||
247 | /* End of previous packet snapshots */ | |
248 | struct end_of_packet_snapshots prev_packet_snapshots; | |
44c440bc PP |
249 | |
250 | /* Stored values (for sequence lengths, variant tags) */ | |
251 | GArray *stored_values; | |
ea14c7dd PP |
252 | |
253 | /* Iterator's current log level */ | |
254 | bt_logging_level log_level; | |
e98a2d6e PP |
255 | }; |
256 | ||
fdf0e7a0 PP |
257 | static inline |
258 | const char *state_string(enum state state) | |
259 | { | |
260 | switch (state) { | |
261 | case STATE_INIT: | |
262 | return "STATE_INIT"; | |
263 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
264 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN"; | |
265 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
266 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE"; | |
267 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
268 | return "STATE_AFTER_TRACE_PACKET_HEADER"; | |
269 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
270 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN"; | |
271 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
272 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE"; | |
273 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
274 | return "STATE_AFTER_STREAM_PACKET_CONTEXT"; | |
fc917f65 PP |
275 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
276 | return "STATE_EMIT_MSG_STREAM_BEGINNING"; | |
277 | case STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING: | |
278 | return "STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING"; | |
279 | case STATE_EMIT_MSG_PACKET_BEGINNING: | |
280 | return "STATE_EMIT_MSG_PACKET_BEGINNING"; | |
495490c5 PP |
281 | case STATE_EMIT_MSG_DISCARDED_EVENTS: |
282 | return "STATE_EMIT_MSG_DISCARDED_EVENTS"; | |
283 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
284 | return "STATE_EMIT_MSG_DISCARDED_PACKETS"; | |
44c440bc PP |
285 | case STATE_DSCOPE_EVENT_HEADER_BEGIN: |
286 | return "STATE_DSCOPE_EVENT_HEADER_BEGIN"; | |
287 | case STATE_DSCOPE_EVENT_HEADER_CONTINUE: | |
288 | return "STATE_DSCOPE_EVENT_HEADER_CONTINUE"; | |
289 | case STATE_AFTER_EVENT_HEADER: | |
290 | return "STATE_AFTER_EVENT_HEADER"; | |
291 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN: | |
292 | return "STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN"; | |
293 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE: | |
294 | return "STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE"; | |
295 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN: | |
296 | return "STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN"; | |
297 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE: | |
298 | return "STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE"; | |
fdf0e7a0 PP |
299 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: |
300 | return "STATE_DSCOPE_EVENT_PAYLOAD_BEGIN"; | |
301 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
302 | return "STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE"; | |
d6e69534 PP |
303 | case STATE_EMIT_MSG_EVENT: |
304 | return "STATE_EMIT_MSG_EVENT"; | |
fdf0e7a0 PP |
305 | case STATE_SKIP_PACKET_PADDING: |
306 | return "STATE_SKIP_PACKET_PADDING"; | |
fc917f65 PP |
307 | case STATE_EMIT_MSG_PACKET_END_MULTI: |
308 | return "STATE_EMIT_MSG_PACKET_END_MULTI"; | |
309 | case STATE_EMIT_MSG_PACKET_END_SINGLE: | |
310 | return "STATE_EMIT_MSG_PACKET_END_SINGLE"; | |
311 | case STATE_EMIT_MSG_STREAM_ACTIVITY_END: | |
312 | return "STATE_EMIT_MSG_STREAM_ACTIVITY_END"; | |
313 | case STATE_EMIT_MSG_STREAM_END: | |
314 | return "STATE_EMIT_MSG_STREAM_END"; | |
315 | case STATE_DONE: | |
316 | return "STATE_DONE"; | |
fdf0e7a0 PP |
317 | default: |
318 | return "(unknown)"; | |
319 | } | |
320 | } | |
321 | ||
2cf1d51e | 322 | static |
d6e69534 | 323 | int bt_msg_iter_switch_packet(struct bt_msg_iter *notit); |
2cf1d51e | 324 | |
e98a2d6e | 325 | static |
d6e69534 | 326 | struct stack *stack_new(struct bt_msg_iter *notit) |
e98a2d6e PP |
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 | ||
ea14c7dd | 336 | stack->notit = notit; |
afe86a06 | 337 | stack->entries = g_array_new(FALSE, TRUE, sizeof(struct stack_entry)); |
e98a2d6e | 338 | if (!stack->entries) { |
afe86a06 | 339 | BT_LOGE_STR("Failed to allocate a GArray."); |
e98a2d6e PP |
340 | goto error; |
341 | } | |
342 | ||
fdf0e7a0 | 343 | BT_LOGD("Created stack: notit-addr=%p, stack-addr=%p", notit, stack); |
44c440bc | 344 | goto end; |
fdf0e7a0 | 345 | |
e98a2d6e PP |
346 | error: |
347 | g_free(stack); | |
44c440bc PP |
348 | stack = NULL; |
349 | ||
350 | end: | |
351 | return stack; | |
e98a2d6e PP |
352 | } |
353 | ||
354 | static | |
355 | void stack_destroy(struct stack *stack) | |
356 | { | |
ea14c7dd PP |
357 | struct bt_msg_iter *notit; |
358 | ||
f6ccaed9 | 359 | BT_ASSERT(stack); |
ea14c7dd | 360 | notit = stack->notit; |
fdf0e7a0 | 361 | BT_LOGD("Destroying stack: addr=%p", stack); |
afe86a06 PP |
362 | |
363 | if (stack->entries) { | |
364 | g_array_free(stack->entries, TRUE); | |
365 | } | |
366 | ||
e98a2d6e PP |
367 | g_free(stack); |
368 | } | |
369 | ||
370 | static | |
b19ff26f | 371 | void stack_push(struct stack *stack, bt_field *base) |
e98a2d6e | 372 | { |
e98a2d6e | 373 | struct stack_entry *entry; |
ea14c7dd | 374 | struct bt_msg_iter *notit; |
e98a2d6e | 375 | |
f6ccaed9 | 376 | BT_ASSERT(stack); |
ea14c7dd | 377 | notit = stack->notit; |
f6ccaed9 | 378 | BT_ASSERT(base); |
fdf0e7a0 | 379 | BT_LOGV("Pushing base field on stack: stack-addr=%p, " |
afe86a06 PP |
380 | "stack-size-before=%zu, stack-size-after=%zu", |
381 | stack, stack->size, stack->size + 1); | |
382 | ||
383 | if (stack->entries->len == stack->size) { | |
384 | g_array_set_size(stack->entries, stack->size + 1); | |
e98a2d6e PP |
385 | } |
386 | ||
afe86a06 | 387 | entry = &g_array_index(stack->entries, struct stack_entry, stack->size); |
312c056a | 388 | entry->base = base; |
afe86a06 PP |
389 | entry->index = 0; |
390 | stack->size++; | |
e98a2d6e PP |
391 | } |
392 | ||
393 | static inline | |
394 | unsigned int stack_size(struct stack *stack) | |
395 | { | |
f6ccaed9 | 396 | BT_ASSERT(stack); |
afe86a06 | 397 | return stack->size; |
e98a2d6e PP |
398 | } |
399 | ||
400 | static | |
401 | void stack_pop(struct stack *stack) | |
402 | { | |
ea14c7dd PP |
403 | struct bt_msg_iter *notit; |
404 | ||
f6ccaed9 PP |
405 | BT_ASSERT(stack); |
406 | BT_ASSERT(stack_size(stack)); | |
ea14c7dd | 407 | notit = stack->notit; |
fdf0e7a0 | 408 | BT_LOGV("Popping from stack: " |
afe86a06 PP |
409 | "stack-addr=%p, stack-size-before=%zu, stack-size-after=%zu", |
410 | stack, stack->size, stack->size - 1); | |
411 | stack->size--; | |
e98a2d6e PP |
412 | } |
413 | ||
414 | static inline | |
415 | struct stack_entry *stack_top(struct stack *stack) | |
416 | { | |
f6ccaed9 PP |
417 | BT_ASSERT(stack); |
418 | BT_ASSERT(stack_size(stack)); | |
afe86a06 PP |
419 | return &g_array_index(stack->entries, struct stack_entry, |
420 | stack->size - 1); | |
e98a2d6e PP |
421 | } |
422 | ||
423 | static inline | |
424 | bool stack_empty(struct stack *stack) | |
425 | { | |
426 | return stack_size(stack) == 0; | |
427 | } | |
428 | ||
429 | static | |
430 | void stack_clear(struct stack *stack) | |
431 | { | |
f6ccaed9 | 432 | BT_ASSERT(stack); |
afe86a06 | 433 | stack->size = 0; |
e98a2d6e PP |
434 | } |
435 | ||
436 | static inline | |
d6e69534 PP |
437 | enum bt_msg_iter_status msg_iter_status_from_m_status( |
438 | enum bt_msg_iter_medium_status m_status) | |
e98a2d6e | 439 | { |
44c440bc | 440 | /* They are the same */ |
dc77b521 | 441 | return (int) m_status; |
e98a2d6e PP |
442 | } |
443 | ||
444 | static inline | |
d6e69534 | 445 | size_t buf_size_bits(struct bt_msg_iter *notit) |
e98a2d6e | 446 | { |
fdf0e7a0 | 447 | return notit->buf.sz * 8; |
e98a2d6e PP |
448 | } |
449 | ||
450 | static inline | |
d6e69534 | 451 | size_t buf_available_bits(struct bt_msg_iter *notit) |
e98a2d6e PP |
452 | { |
453 | return buf_size_bits(notit) - notit->buf.at; | |
454 | } | |
455 | ||
456 | static inline | |
d6e69534 | 457 | size_t packet_at(struct bt_msg_iter *notit) |
e98a2d6e PP |
458 | { |
459 | return notit->buf.packet_offset + notit->buf.at; | |
460 | } | |
461 | ||
e98a2d6e | 462 | static inline |
d6e69534 | 463 | void buf_consume_bits(struct bt_msg_iter *notit, size_t incr) |
e98a2d6e | 464 | { |
fdf0e7a0 PP |
465 | BT_LOGV("Advancing cursor: notit-addr=%p, cur-before=%zu, cur-after=%zu", |
466 | notit, notit->buf.at, notit->buf.at + incr); | |
e98a2d6e PP |
467 | notit->buf.at += incr; |
468 | } | |
469 | ||
e98a2d6e | 470 | static |
d6e69534 PP |
471 | enum bt_msg_iter_status request_medium_bytes( |
472 | struct bt_msg_iter *notit) | |
e98a2d6e | 473 | { |
fdf0e7a0 PP |
474 | uint8_t *buffer_addr = NULL; |
475 | size_t buffer_sz = 0; | |
d6e69534 | 476 | enum bt_msg_iter_medium_status m_status; |
e98a2d6e | 477 | |
3f7d4d90 | 478 | BT_LOGD("Calling user function (request bytes): notit-addr=%p, " |
fdf0e7a0 | 479 | "request-size=%zu", notit, notit->medium.max_request_sz); |
e98a2d6e PP |
480 | m_status = notit->medium.medops.request_bytes( |
481 | notit->medium.max_request_sz, &buffer_addr, | |
482 | &buffer_sz, notit->medium.data); | |
3f7d4d90 | 483 | BT_LOGD("User function returned: status=%s, buf-addr=%p, buf-size=%zu", |
d6e69534 | 484 | bt_msg_iter_medium_status_string(m_status), |
fdf0e7a0 | 485 | buffer_addr, buffer_sz); |
d6e69534 | 486 | if (m_status == BT_MSG_ITER_MEDIUM_STATUS_OK) { |
f6ccaed9 | 487 | BT_ASSERT(buffer_sz != 0); |
e98a2d6e PP |
488 | |
489 | /* New packet offset is old one + old size (in bits) */ | |
490 | notit->buf.packet_offset += buf_size_bits(notit); | |
491 | ||
492 | /* Restart at the beginning of the new medium buffer */ | |
493 | notit->buf.at = 0; | |
2b186c3e | 494 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
495 | |
496 | /* New medium buffer size */ | |
497 | notit->buf.sz = buffer_sz; | |
498 | ||
499 | /* New medium buffer address */ | |
500 | notit->buf.addr = buffer_addr; | |
fdf0e7a0 | 501 | |
3f7d4d90 | 502 | BT_LOGD("User function returned new bytes: " |
fdf0e7a0 PP |
503 | "packet-offset=%zu, cur=%zu, size=%zu, addr=%p", |
504 | notit->buf.packet_offset, notit->buf.at, | |
505 | notit->buf.sz, notit->buf.addr); | |
3f7d4d90 | 506 | BT_LOGD_MEM(buffer_addr, buffer_sz, "Returned bytes at %p:", |
fdf0e7a0 | 507 | buffer_addr); |
d6e69534 | 508 | } else if (m_status == BT_MSG_ITER_MEDIUM_STATUS_EOF) { |
0684124b PP |
509 | /* |
510 | * User returned end of stream: validate that we're not | |
511 | * in the middle of a packet header, packet context, or | |
512 | * event. | |
513 | */ | |
44c440bc PP |
514 | if (notit->cur_exp_packet_total_size >= 0) { |
515 | if (packet_at(notit) == | |
516 | notit->cur_exp_packet_total_size) { | |
df0139b8 | 517 | goto end; |
0684124b | 518 | } |
df0139b8 PP |
519 | } else { |
520 | if (packet_at(notit) == 0) { | |
521 | goto end; | |
0684124b | 522 | } |
0684124b | 523 | |
df0139b8 PP |
524 | if (notit->buf.last_eh_at != SIZE_MAX && |
525 | notit->buf.at == notit->buf.last_eh_at) { | |
526 | goto end; | |
0684124b PP |
527 | } |
528 | } | |
529 | ||
0684124b | 530 | /* All other states are invalid */ |
d6e69534 | 531 | BT_LOGW("User function returned %s, but message iterator is in an unexpected state: " |
df0139b8 PP |
532 | "state=%s, cur-packet-size=%" PRId64 ", cur=%zu, " |
533 | "packet-cur=%zu, last-eh-at=%zu", | |
d6e69534 | 534 | bt_msg_iter_medium_status_string(m_status), |
df0139b8 | 535 | state_string(notit->state), |
44c440bc | 536 | notit->cur_exp_packet_total_size, |
df0139b8 PP |
537 | notit->buf.at, packet_at(notit), |
538 | notit->buf.last_eh_at); | |
d6e69534 | 539 | m_status = BT_MSG_ITER_MEDIUM_STATUS_ERROR; |
fdf0e7a0 PP |
540 | } else if (m_status < 0) { |
541 | BT_LOGW("User function failed: status=%s", | |
d6e69534 | 542 | bt_msg_iter_medium_status_string(m_status)); |
e98a2d6e PP |
543 | } |
544 | ||
df0139b8 | 545 | end: |
d6e69534 | 546 | return msg_iter_status_from_m_status(m_status); |
e98a2d6e PP |
547 | } |
548 | ||
549 | static inline | |
d6e69534 PP |
550 | enum bt_msg_iter_status buf_ensure_available_bits( |
551 | struct bt_msg_iter *notit) | |
e98a2d6e | 552 | { |
d6e69534 | 553 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e | 554 | |
91d81473 | 555 | if (G_UNLIKELY(buf_available_bits(notit) == 0)) { |
e98a2d6e | 556 | /* |
d6e69534 | 557 | * This _cannot_ return BT_MSG_ITER_STATUS_OK |
e98a2d6e PP |
558 | * _and_ no bits. |
559 | */ | |
560 | status = request_medium_bytes(notit); | |
561 | } | |
562 | ||
563 | return status; | |
564 | } | |
565 | ||
566 | static | |
d6e69534 PP |
567 | enum bt_msg_iter_status read_dscope_begin_state( |
568 | struct bt_msg_iter *notit, | |
5cd6d0e5 | 569 | struct ctf_field_class *dscope_fc, |
e98a2d6e | 570 | enum state done_state, enum state continue_state, |
b19ff26f | 571 | bt_field *dscope_field) |
e98a2d6e | 572 | { |
d6e69534 | 573 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 574 | enum bt_bfcr_status bfcr_status; |
e98a2d6e PP |
575 | size_t consumed_bits; |
576 | ||
e98a2d6e | 577 | notit->cur_dscope_field = dscope_field; |
5cd6d0e5 PP |
578 | BT_LOGV("Starting BFCR: notit-addr=%p, bfcr-addr=%p, fc-addr=%p", |
579 | notit, notit->bfcr, dscope_fc); | |
580 | consumed_bits = bt_bfcr_start(notit->bfcr, dscope_fc, | |
e98a2d6e | 581 | notit->buf.addr, notit->buf.at, packet_at(notit), |
5cd6d0e5 PP |
582 | notit->buf.sz, &bfcr_status); |
583 | BT_LOGV("BFCR consumed bits: size=%zu", consumed_bits); | |
e98a2d6e | 584 | |
5cd6d0e5 PP |
585 | switch (bfcr_status) { |
586 | case BT_BFCR_STATUS_OK: | |
587 | /* Field class was read completely */ | |
fdf0e7a0 | 588 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
589 | notit->state = done_state; |
590 | break; | |
5cd6d0e5 PP |
591 | case BT_BFCR_STATUS_EOF: |
592 | BT_LOGV_STR("BFCR needs more data to decode field completely."); | |
e98a2d6e PP |
593 | notit->state = continue_state; |
594 | break; | |
595 | default: | |
5cd6d0e5 PP |
596 | BT_LOGW("BFCR failed to start: notit-addr=%p, bfcr-addr=%p, " |
597 | "status=%s", notit, notit->bfcr, | |
598 | bt_bfcr_status_string(bfcr_status)); | |
d6e69534 | 599 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
600 | goto end; |
601 | } | |
602 | ||
603 | /* Consume bits now since we know we're not in an error state */ | |
604 | buf_consume_bits(notit, consumed_bits); | |
605 | ||
606 | end: | |
607 | return status; | |
608 | } | |
609 | ||
610 | static | |
d6e69534 PP |
611 | enum bt_msg_iter_status read_dscope_continue_state( |
612 | struct bt_msg_iter *notit, enum state done_state) | |
e98a2d6e | 613 | { |
d6e69534 | 614 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 615 | enum bt_bfcr_status bfcr_status; |
e98a2d6e PP |
616 | size_t consumed_bits; |
617 | ||
5cd6d0e5 PP |
618 | BT_LOGV("Continuing BFCR: notit-addr=%p, bfcr-addr=%p", |
619 | notit, notit->bfcr); | |
df0139b8 | 620 | |
e98a2d6e | 621 | status = buf_ensure_available_bits(notit); |
d6e69534 | 622 | if (status != BT_MSG_ITER_STATUS_OK) { |
fdf0e7a0 PP |
623 | if (status < 0) { |
624 | BT_LOGW("Cannot ensure that buffer has at least one byte: " | |
d6e69534 PP |
625 | "msg-addr=%p, status=%s", |
626 | notit, bt_msg_iter_status_string(status)); | |
fdf0e7a0 PP |
627 | } else { |
628 | BT_LOGV("Cannot ensure that buffer has at least one byte: " | |
d6e69534 PP |
629 | "msg-addr=%p, status=%s", |
630 | notit, bt_msg_iter_status_string(status)); | |
fdf0e7a0 PP |
631 | } |
632 | ||
e98a2d6e PP |
633 | goto end; |
634 | } | |
635 | ||
5cd6d0e5 PP |
636 | consumed_bits = bt_bfcr_continue(notit->bfcr, notit->buf.addr, |
637 | notit->buf.sz, &bfcr_status); | |
638 | BT_LOGV("BFCR consumed bits: size=%zu", consumed_bits); | |
e98a2d6e | 639 | |
5cd6d0e5 PP |
640 | switch (bfcr_status) { |
641 | case BT_BFCR_STATUS_OK: | |
78586d8a | 642 | /* Type was read completely. */ |
fdf0e7a0 | 643 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
644 | notit->state = done_state; |
645 | break; | |
5cd6d0e5 | 646 | case BT_BFCR_STATUS_EOF: |
78586d8a | 647 | /* Stay in this continue state. */ |
5cd6d0e5 | 648 | BT_LOGV_STR("BFCR needs more data to decode field completely."); |
e98a2d6e PP |
649 | break; |
650 | default: | |
5cd6d0e5 PP |
651 | BT_LOGW("BFCR failed to continue: notit-addr=%p, bfcr-addr=%p, " |
652 | "status=%s", notit, notit->bfcr, | |
653 | bt_bfcr_status_string(bfcr_status)); | |
d6e69534 | 654 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
655 | goto end; |
656 | } | |
657 | ||
78586d8a | 658 | /* Consume bits now since we know we're not in an error state. */ |
e98a2d6e | 659 | buf_consume_bits(notit, consumed_bits); |
e98a2d6e PP |
660 | end: |
661 | return status; | |
662 | } | |
663 | ||
664 | static | |
d6e69534 | 665 | void release_event_dscopes(struct bt_msg_iter *notit) |
e98a2d6e | 666 | { |
44c440bc PP |
667 | notit->dscopes.event_common_context = NULL; |
668 | notit->dscopes.event_spec_context = NULL; | |
312c056a | 669 | notit->dscopes.event_payload = NULL; |
e98a2d6e PP |
670 | } |
671 | ||
672 | static | |
d6e69534 | 673 | void release_all_dscopes(struct bt_msg_iter *notit) |
e98a2d6e | 674 | { |
312c056a PP |
675 | notit->dscopes.stream_packet_context = NULL; |
676 | ||
677 | if (notit->packet_context_field) { | |
40f4ba76 | 678 | bt_packet_context_field_release(notit->packet_context_field); |
312c056a PP |
679 | notit->packet_context_field = NULL; |
680 | } | |
681 | ||
682 | release_event_dscopes(notit); | |
e98a2d6e PP |
683 | } |
684 | ||
685 | static | |
d6e69534 PP |
686 | enum bt_msg_iter_status read_packet_header_begin_state( |
687 | struct bt_msg_iter *notit) | |
e98a2d6e | 688 | { |
5cd6d0e5 | 689 | struct ctf_field_class *packet_header_fc = NULL; |
d6e69534 | 690 | enum bt_msg_iter_status ret = BT_MSG_ITER_STATUS_OK; |
e98a2d6e | 691 | |
d6e69534 | 692 | if (bt_msg_iter_switch_packet(notit)) { |
fdf0e7a0 | 693 | BT_LOGW("Cannot switch packet: notit-addr=%p", notit); |
d6e69534 | 694 | ret = BT_MSG_ITER_STATUS_ERROR; |
2cf1d51e JG |
695 | goto end; |
696 | } | |
e98a2d6e | 697 | |
fc917f65 PP |
698 | /* |
699 | * Make sure at least one bit is available for this packet. An | |
700 | * empty packet is impossible. If we reach the end of the medium | |
701 | * at this point, then it's considered the end of the stream. | |
702 | */ | |
703 | ret = buf_ensure_available_bits(notit); | |
704 | switch (ret) { | |
705 | case BT_MSG_ITER_STATUS_OK: | |
706 | break; | |
707 | case BT_MSG_ITER_STATUS_EOF: | |
708 | ret = BT_MSG_ITER_STATUS_OK; | |
495490c5 | 709 | notit->state = STATE_CHECK_EMIT_MSG_STREAM_ACTIVITY_END; |
fc917f65 PP |
710 | goto end; |
711 | default: | |
712 | goto end; | |
713 | } | |
714 | ||
862ca4ed | 715 | /* Packet header class is common to the whole trace class. */ |
5cd6d0e5 PP |
716 | packet_header_fc = notit->meta.tc->packet_header_fc; |
717 | if (!packet_header_fc) { | |
835b2d10 | 718 | notit->state = STATE_AFTER_TRACE_PACKET_HEADER; |
e98a2d6e PP |
719 | goto end; |
720 | } | |
721 | ||
44c440bc PP |
722 | notit->cur_stream_class_id = -1; |
723 | notit->cur_event_class_id = -1; | |
724 | notit->cur_data_stream_id = -1; | |
3f7d4d90 | 725 | BT_LOGD("Decoding packet header field:" |
862ca4ed PP |
726 | "notit-addr=%p, trace-class-addr=%p, fc-addr=%p", |
727 | notit, notit->meta.tc, packet_header_fc); | |
5cd6d0e5 | 728 | ret = read_dscope_begin_state(notit, packet_header_fc, |
fdf0e7a0 | 729 | STATE_AFTER_TRACE_PACKET_HEADER, |
83ebb7f1 | 730 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, NULL); |
fdf0e7a0 PP |
731 | if (ret < 0) { |
732 | BT_LOGW("Cannot decode packet header field: " | |
862ca4ed PP |
733 | "notit-addr=%p, trace-class-addr=%p, " |
734 | "fc-addr=%p", | |
735 | notit, notit->meta.tc, packet_header_fc); | |
fdf0e7a0 | 736 | } |
d1e46835 | 737 | |
e98a2d6e | 738 | end: |
2cf1d51e | 739 | return ret; |
e98a2d6e PP |
740 | } |
741 | ||
742 | static | |
d6e69534 PP |
743 | enum bt_msg_iter_status read_packet_header_continue_state( |
744 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
745 | { |
746 | return read_dscope_continue_state(notit, | |
44c440bc | 747 | STATE_AFTER_TRACE_PACKET_HEADER); |
5f870343 JG |
748 | } |
749 | ||
e98a2d6e | 750 | static inline |
d6e69534 | 751 | enum bt_msg_iter_status set_current_stream_class(struct bt_msg_iter *notit) |
e98a2d6e | 752 | { |
d6e69534 | 753 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
44c440bc PP |
754 | struct ctf_stream_class *new_stream_class = NULL; |
755 | ||
756 | if (notit->cur_stream_class_id == -1) { | |
fdf0e7a0 | 757 | /* |
44c440bc PP |
758 | * No current stream class ID field, therefore only one |
759 | * stream class. | |
fdf0e7a0 | 760 | */ |
44c440bc PP |
761 | if (notit->meta.tc->stream_classes->len != 1) { |
762 | BT_LOGW("Need exactly one stream class since there's " | |
763 | "no stream class ID field: " | |
862ca4ed | 764 | "notit-addr=%p", notit); |
d6e69534 | 765 | status = BT_MSG_ITER_STATUS_ERROR; |
44c440bc PP |
766 | goto end; |
767 | } | |
e98a2d6e | 768 | |
44c440bc PP |
769 | new_stream_class = notit->meta.tc->stream_classes->pdata[0]; |
770 | notit->cur_stream_class_id = new_stream_class->id; | |
e98a2d6e PP |
771 | } |
772 | ||
44c440bc PP |
773 | new_stream_class = ctf_trace_class_borrow_stream_class_by_id( |
774 | notit->meta.tc, notit->cur_stream_class_id); | |
115de887 | 775 | if (!new_stream_class) { |
862ca4ed | 776 | BT_LOGW("No stream class with ID of stream class ID to use in trace class: " |
fdf0e7a0 | 777 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " |
862ca4ed PP |
778 | "trace-class-addr=%p", |
779 | notit, notit->cur_stream_class_id, notit->meta.tc); | |
d6e69534 | 780 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
781 | goto end; |
782 | } | |
783 | ||
44c440bc PP |
784 | if (notit->meta.sc) { |
785 | if (new_stream_class != notit->meta.sc) { | |
115de887 PP |
786 | BT_LOGW("Two packets refer to two different stream classes within the same packet sequence: " |
787 | "notit-addr=%p, prev-stream-class-addr=%p, " | |
115de887 PP |
788 | "prev-stream-class-id=%" PRId64 ", " |
789 | "next-stream-class-addr=%p, " | |
115de887 | 790 | "next-stream-class-id=%" PRId64 ", " |
862ca4ed | 791 | "trace-addr=%p", |
44c440bc PP |
792 | notit, notit->meta.sc, |
793 | notit->meta.sc->id, | |
115de887 | 794 | new_stream_class, |
44c440bc | 795 | new_stream_class->id, |
862ca4ed | 796 | notit->meta.tc); |
d6e69534 | 797 | status = BT_MSG_ITER_STATUS_ERROR; |
115de887 PP |
798 | goto end; |
799 | } | |
800 | } else { | |
44c440bc | 801 | notit->meta.sc = new_stream_class; |
115de887 PP |
802 | } |
803 | ||
3f7d4d90 | 804 | BT_LOGD("Set current stream class: " |
fdf0e7a0 | 805 | "notit-addr=%p, stream-class-addr=%p, " |
44c440bc PP |
806 | "stream-class-id=%" PRId64, |
807 | notit, notit->meta.sc, notit->meta.sc->id); | |
d1e46835 | 808 | |
e98a2d6e | 809 | end: |
e98a2d6e PP |
810 | return status; |
811 | } | |
812 | ||
312c056a | 813 | static inline |
d6e69534 | 814 | enum bt_msg_iter_status set_current_stream(struct bt_msg_iter *notit) |
312c056a | 815 | { |
d6e69534 | 816 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
b19ff26f | 817 | bt_stream *stream = NULL; |
312c056a | 818 | |
3f7d4d90 | 819 | BT_LOGD("Calling user function (get stream): notit-addr=%p, " |
44c440bc PP |
820 | "stream-class-addr=%p, stream-class-id=%" PRId64, |
821 | notit, notit->meta.sc, | |
822 | notit->meta.sc->id); | |
398454ed | 823 | stream = notit->medium.medops.borrow_stream( |
44c440bc | 824 | notit->meta.sc->ir_sc, notit->cur_data_stream_id, |
398454ed | 825 | notit->medium.data); |
c5b9b441 | 826 | bt_stream_get_ref(stream); |
3f7d4d90 | 827 | BT_LOGD("User function returned: stream-addr=%p", stream); |
312c056a | 828 | if (!stream) { |
44c440bc PP |
829 | BT_LOGW_STR("User function failed to return a stream object " |
830 | "for the given stream class."); | |
d6e69534 | 831 | status = BT_MSG_ITER_STATUS_ERROR; |
312c056a PP |
832 | goto end; |
833 | } | |
834 | ||
835 | if (notit->stream && stream != notit->stream) { | |
44c440bc PP |
836 | BT_LOGW("User function returned a different stream than the " |
837 | "previous one for the same sequence of packets."); | |
d6e69534 | 838 | status = BT_MSG_ITER_STATUS_ERROR; |
312c056a PP |
839 | goto end; |
840 | } | |
841 | ||
c5b9b441 | 842 | BT_STREAM_MOVE_REF(notit->stream, stream); |
312c056a PP |
843 | |
844 | end: | |
c5b9b441 | 845 | bt_stream_put_ref(stream); |
312c056a PP |
846 | return status; |
847 | } | |
848 | ||
849 | static inline | |
d6e69534 | 850 | enum bt_msg_iter_status set_current_packet(struct bt_msg_iter *notit) |
312c056a | 851 | { |
d6e69534 | 852 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
b19ff26f | 853 | bt_packet *packet = NULL; |
312c056a | 854 | |
3f7d4d90 | 855 | BT_LOGD("Creating packet for packet message: " |
312c056a | 856 | "notit-addr=%p", notit); |
3f7d4d90 | 857 | BT_LOGD("Creating packet from stream: " |
312c056a PP |
858 | "notit-addr=%p, stream-addr=%p, " |
859 | "stream-class-addr=%p, " | |
312c056a | 860 | "stream-class-id=%" PRId64, |
44c440bc PP |
861 | notit, notit->stream, notit->meta.sc, |
862 | notit->meta.sc->id); | |
312c056a PP |
863 | |
864 | /* Create packet */ | |
865 | BT_ASSERT(notit->stream); | |
40f4ba76 | 866 | packet = bt_packet_create(notit->stream); |
312c056a PP |
867 | if (!packet) { |
868 | BT_LOGE("Cannot create packet from stream: " | |
869 | "notit-addr=%p, stream-addr=%p, " | |
870 | "stream-class-addr=%p, " | |
312c056a | 871 | "stream-class-id=%" PRId64, |
44c440bc PP |
872 | notit, notit->stream, notit->meta.sc, |
873 | notit->meta.sc->id); | |
312c056a PP |
874 | goto error; |
875 | } | |
876 | ||
877 | goto end; | |
878 | ||
879 | error: | |
c5b9b441 | 880 | BT_PACKET_PUT_REF_AND_RESET(packet); |
d6e69534 | 881 | status = BT_MSG_ITER_STATUS_ERROR; |
312c056a PP |
882 | |
883 | end: | |
c5b9b441 | 884 | BT_PACKET_MOVE_REF(notit->packet, packet); |
312c056a PP |
885 | return status; |
886 | } | |
887 | ||
e98a2d6e | 888 | static |
d6e69534 PP |
889 | enum bt_msg_iter_status after_packet_header_state( |
890 | struct bt_msg_iter *notit) | |
e98a2d6e | 891 | { |
d6e69534 | 892 | enum bt_msg_iter_status status; |
e98a2d6e PP |
893 | |
894 | status = set_current_stream_class(notit); | |
d6e69534 | 895 | if (status != BT_MSG_ITER_STATUS_OK) { |
312c056a | 896 | goto end; |
e98a2d6e PP |
897 | } |
898 | ||
312c056a PP |
899 | notit->state = STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN; |
900 | ||
901 | end: | |
e98a2d6e PP |
902 | return status; |
903 | } | |
904 | ||
905 | static | |
d6e69534 PP |
906 | enum bt_msg_iter_status read_packet_context_begin_state( |
907 | struct bt_msg_iter *notit) | |
e98a2d6e | 908 | { |
d6e69534 | 909 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 910 | struct ctf_field_class *packet_context_fc; |
e98a2d6e | 911 | |
44c440bc | 912 | BT_ASSERT(notit->meta.sc); |
5cd6d0e5 PP |
913 | packet_context_fc = notit->meta.sc->packet_context_fc; |
914 | if (!packet_context_fc) { | |
3f7d4d90 | 915 | BT_LOGD("No packet packet context field class in stream class: continuing: " |
fdf0e7a0 | 916 | "notit-addr=%p, stream-class-addr=%p, " |
44c440bc PP |
917 | "stream-class-id=%" PRId64, |
918 | notit, notit->meta.sc, | |
919 | notit->meta.sc->id); | |
835b2d10 | 920 | notit->state = STATE_AFTER_STREAM_PACKET_CONTEXT; |
e98a2d6e PP |
921 | goto end; |
922 | } | |
923 | ||
312c056a | 924 | BT_ASSERT(!notit->packet_context_field); |
44c440bc | 925 | |
5cd6d0e5 | 926 | if (packet_context_fc->in_ir) { |
44c440bc PP |
927 | /* |
928 | * Create free packet context field from stream class. | |
929 | * This field is going to be moved to the packet once we | |
930 | * create it. We cannot create the packet now because a | |
931 | * packet is created from a stream, and this API must be | |
83ebb7f1 PP |
932 | * able to return the packet context properties without |
933 | * creating a stream | |
934 | * (bt_msg_iter_get_packet_properties()). | |
44c440bc PP |
935 | */ |
936 | notit->packet_context_field = | |
40f4ba76 | 937 | bt_packet_context_field_create( |
e5be10ef | 938 | notit->meta.sc->ir_sc); |
44c440bc PP |
939 | if (!notit->packet_context_field) { |
940 | BT_LOGE_STR("Cannot create packet context field wrapper from stream class."); | |
d6e69534 | 941 | status = BT_MSG_ITER_STATUS_ERROR; |
44c440bc PP |
942 | goto end; |
943 | } | |
944 | ||
945 | notit->dscopes.stream_packet_context = | |
40f4ba76 | 946 | bt_packet_context_field_borrow_field( |
e5be10ef | 947 | notit->packet_context_field); |
44c440bc | 948 | BT_ASSERT(notit->dscopes.stream_packet_context); |
312c056a PP |
949 | } |
950 | ||
3f7d4d90 | 951 | BT_LOGD("Decoding packet context field: " |
fdf0e7a0 | 952 | "notit-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 953 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc | 954 | notit, notit->meta.sc, |
5cd6d0e5 PP |
955 | notit->meta.sc->id, packet_context_fc); |
956 | status = read_dscope_begin_state(notit, packet_context_fc, | |
fdf0e7a0 PP |
957 | STATE_AFTER_STREAM_PACKET_CONTEXT, |
958 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
312c056a | 959 | notit->dscopes.stream_packet_context); |
fdf0e7a0 PP |
960 | if (status < 0) { |
961 | BT_LOGW("Cannot decode packet context field: " | |
962 | "notit-addr=%p, stream-class-addr=%p, " | |
5cd6d0e5 | 963 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
964 | notit, notit->meta.sc, |
965 | notit->meta.sc->id, | |
5cd6d0e5 | 966 | packet_context_fc); |
fdf0e7a0 | 967 | } |
e98a2d6e PP |
968 | |
969 | end: | |
e98a2d6e PP |
970 | return status; |
971 | } | |
972 | ||
973 | static | |
d6e69534 PP |
974 | enum bt_msg_iter_status read_packet_context_continue_state( |
975 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
976 | { |
977 | return read_dscope_continue_state(notit, | |
78586d8a | 978 | STATE_AFTER_STREAM_PACKET_CONTEXT); |
e98a2d6e PP |
979 | } |
980 | ||
78586d8a | 981 | static |
d6e69534 PP |
982 | enum bt_msg_iter_status set_current_packet_content_sizes( |
983 | struct bt_msg_iter *notit) | |
e98a2d6e | 984 | { |
d6e69534 | 985 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e | 986 | |
44c440bc PP |
987 | if (notit->cur_exp_packet_total_size == -1) { |
988 | if (notit->cur_exp_packet_content_size != -1) { | |
01f71e30 PP |
989 | notit->cur_exp_packet_total_size = |
990 | notit->cur_exp_packet_content_size; | |
e98a2d6e | 991 | } |
e98a2d6e | 992 | } else { |
44c440bc PP |
993 | if (notit->cur_exp_packet_content_size == -1) { |
994 | notit->cur_exp_packet_content_size = | |
995 | notit->cur_exp_packet_total_size; | |
996 | } | |
e98a2d6e PP |
997 | } |
998 | ||
9067de2b PP |
999 | BT_ASSERT((notit->cur_exp_packet_total_size >= 0 && |
1000 | notit->cur_exp_packet_content_size >= 0) || | |
1001 | (notit->cur_exp_packet_total_size < 0 && | |
1002 | notit->cur_exp_packet_content_size < 0)); | |
01f71e30 | 1003 | |
44c440bc PP |
1004 | if (notit->cur_exp_packet_content_size > |
1005 | notit->cur_exp_packet_total_size) { | |
1006 | BT_LOGW("Invalid packet or content size: " | |
1007 | "content size is greater than packet size: " | |
fdf0e7a0 | 1008 | "notit-addr=%p, packet-context-field-addr=%p, " |
44c440bc | 1009 | "packet-size=%" PRId64 ", content-size=%" PRId64, |
fdf0e7a0 | 1010 | notit, notit->dscopes.stream_packet_context, |
44c440bc PP |
1011 | notit->cur_exp_packet_total_size, |
1012 | notit->cur_exp_packet_content_size); | |
d6e69534 | 1013 | status = BT_MSG_ITER_STATUS_ERROR; |
fdf0e7a0 PP |
1014 | goto end; |
1015 | } | |
1016 | ||
3f7d4d90 | 1017 | BT_LOGD("Set current packet and content sizes: " |
fdf0e7a0 | 1018 | "notit-addr=%p, packet-size=%" PRIu64 ", content-size=%" PRIu64, |
44c440bc PP |
1019 | notit, notit->cur_exp_packet_total_size, |
1020 | notit->cur_exp_packet_content_size); | |
fc917f65 | 1021 | |
e98a2d6e | 1022 | end: |
e98a2d6e PP |
1023 | return status; |
1024 | } | |
1025 | ||
1026 | static | |
fc917f65 | 1027 | enum bt_msg_iter_status after_packet_context_state(struct bt_msg_iter *notit) |
e98a2d6e | 1028 | { |
d6e69534 | 1029 | enum bt_msg_iter_status status; |
e98a2d6e PP |
1030 | |
1031 | status = set_current_packet_content_sizes(notit); | |
d6e69534 | 1032 | if (status != BT_MSG_ITER_STATUS_OK) { |
e22b45d0 PP |
1033 | goto end; |
1034 | } | |
1035 | ||
fc917f65 PP |
1036 | if (notit->stream) { |
1037 | /* | |
1038 | * Stream exists, which means we already emitted at | |
1039 | * least one packet beginning message, so the initial | |
1040 | * stream beginning message was also emitted. | |
1041 | */ | |
495490c5 | 1042 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS; |
e22b45d0 | 1043 | } else { |
495490c5 | 1044 | notit->state = STATE_CHECK_EMIT_MSG_STREAM_BEGINNING; |
e98a2d6e PP |
1045 | } |
1046 | ||
e22b45d0 | 1047 | end: |
e98a2d6e PP |
1048 | return status; |
1049 | } | |
1050 | ||
1051 | static | |
fc917f65 | 1052 | enum bt_msg_iter_status read_event_header_begin_state(struct bt_msg_iter *notit) |
e98a2d6e | 1053 | { |
d6e69534 | 1054 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 1055 | struct ctf_field_class *event_header_fc = NULL; |
e98a2d6e | 1056 | |
174e773b PP |
1057 | /* Reset the position of the last event header */ |
1058 | notit->buf.last_eh_at = notit->buf.at; | |
44c440bc | 1059 | notit->cur_event_class_id = -1; |
174e773b | 1060 | |
e98a2d6e | 1061 | /* Check if we have some content left */ |
44c440bc | 1062 | if (notit->cur_exp_packet_content_size >= 0) { |
91d81473 | 1063 | if (G_UNLIKELY(packet_at(notit) == |
44c440bc | 1064 | notit->cur_exp_packet_content_size)) { |
e98a2d6e | 1065 | /* No more events! */ |
3f7d4d90 | 1066 | BT_LOGD("Reached end of packet: notit-addr=%p, " |
fdf0e7a0 | 1067 | "cur=%zu", notit, packet_at(notit)); |
fc917f65 | 1068 | notit->state = STATE_EMIT_MSG_PACKET_END_MULTI; |
e98a2d6e | 1069 | goto end; |
91d81473 | 1070 | } else if (G_UNLIKELY(packet_at(notit) > |
44c440bc | 1071 | notit->cur_exp_packet_content_size)) { |
e98a2d6e | 1072 | /* That's not supposed to happen */ |
3f7d4d90 | 1073 | BT_LOGD("Before decoding event header field: cursor is passed the packet's content: " |
1974687e | 1074 | "notit-addr=%p, content-size=%" PRId64 ", " |
44c440bc PP |
1075 | "cur=%zu", notit, |
1076 | notit->cur_exp_packet_content_size, | |
fdf0e7a0 | 1077 | packet_at(notit)); |
d6e69534 | 1078 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
1079 | goto end; |
1080 | } | |
44c440bc PP |
1081 | } else { |
1082 | /* | |
1083 | * "Infinite" content: we're done when the medium has | |
1084 | * nothing else for us. | |
1085 | */ | |
1086 | status = buf_ensure_available_bits(notit); | |
fc917f65 PP |
1087 | switch (status) { |
1088 | case BT_MSG_ITER_STATUS_OK: | |
1089 | break; | |
1090 | case BT_MSG_ITER_STATUS_EOF: | |
1091 | status = BT_MSG_ITER_STATUS_OK; | |
1092 | notit->state = STATE_EMIT_MSG_PACKET_END_SINGLE; | |
1093 | goto end; | |
1094 | default: | |
44c440bc PP |
1095 | goto end; |
1096 | } | |
e98a2d6e PP |
1097 | } |
1098 | ||
312c056a | 1099 | release_event_dscopes(notit); |
44c440bc | 1100 | BT_ASSERT(notit->meta.sc); |
5cd6d0e5 PP |
1101 | event_header_fc = notit->meta.sc->event_header_fc; |
1102 | if (!event_header_fc) { | |
44c440bc | 1103 | notit->state = STATE_AFTER_EVENT_HEADER; |
e98a2d6e PP |
1104 | goto end; |
1105 | } | |
1106 | ||
3f7d4d90 | 1107 | BT_LOGD("Decoding event header field: " |
fdf0e7a0 | 1108 | "notit-addr=%p, stream-class-addr=%p, " |
44c440bc | 1109 | "stream-class-id=%" PRId64 ", " |
5cd6d0e5 | 1110 | "fc-addr=%p", |
44c440bc PP |
1111 | notit, notit->meta.sc, |
1112 | notit->meta.sc->id, | |
5cd6d0e5 PP |
1113 | event_header_fc); |
1114 | status = read_dscope_begin_state(notit, event_header_fc, | |
44c440bc | 1115 | STATE_AFTER_EVENT_HEADER, |
83ebb7f1 | 1116 | STATE_DSCOPE_EVENT_HEADER_CONTINUE, NULL); |
fdf0e7a0 PP |
1117 | if (status < 0) { |
1118 | BT_LOGW("Cannot decode event header field: " | |
1119 | "notit-addr=%p, stream-class-addr=%p, " | |
5cd6d0e5 | 1120 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1121 | notit, notit->meta.sc, |
1122 | notit->meta.sc->id, | |
5cd6d0e5 | 1123 | event_header_fc); |
fdf0e7a0 | 1124 | } |
e98a2d6e | 1125 | |
d1e46835 | 1126 | end: |
e98a2d6e PP |
1127 | return status; |
1128 | } | |
1129 | ||
1130 | static | |
d6e69534 PP |
1131 | enum bt_msg_iter_status read_event_header_continue_state( |
1132 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
1133 | { |
1134 | return read_dscope_continue_state(notit, | |
44c440bc | 1135 | STATE_AFTER_EVENT_HEADER); |
e98a2d6e PP |
1136 | } |
1137 | ||
1138 | static inline | |
d6e69534 | 1139 | enum bt_msg_iter_status set_current_event_class(struct bt_msg_iter *notit) |
e98a2d6e | 1140 | { |
d6e69534 | 1141 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e | 1142 | |
44c440bc | 1143 | struct ctf_event_class *new_event_class = NULL; |
e98a2d6e | 1144 | |
44c440bc | 1145 | if (notit->cur_event_class_id == -1) { |
e98a2d6e | 1146 | /* |
44c440bc PP |
1147 | * No current event class ID field, therefore only one |
1148 | * event class. | |
e98a2d6e | 1149 | */ |
44c440bc PP |
1150 | if (notit->meta.sc->event_classes->len != 1) { |
1151 | BT_LOGW("Need exactly one event class since there's " | |
1152 | "no event class ID field: " | |
862ca4ed | 1153 | "notit-addr=%p", notit); |
d6e69534 | 1154 | status = BT_MSG_ITER_STATUS_ERROR; |
44c440bc | 1155 | goto end; |
fdf0e7a0 | 1156 | } |
e98a2d6e | 1157 | |
44c440bc PP |
1158 | new_event_class = notit->meta.sc->event_classes->pdata[0]; |
1159 | notit->cur_event_class_id = new_event_class->id; | |
e98a2d6e PP |
1160 | } |
1161 | ||
44c440bc PP |
1162 | new_event_class = ctf_stream_class_borrow_event_class_by_id( |
1163 | notit->meta.sc, notit->cur_event_class_id); | |
1164 | if (!new_event_class) { | |
fdf0e7a0 | 1165 | BT_LOGW("No event class with ID of event class ID to use in stream class: " |
44c440bc PP |
1166 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " |
1167 | "event-class-id=%" PRIu64 ", " | |
862ca4ed | 1168 | "trace-class-addr=%p", |
44c440bc | 1169 | notit, notit->meta.sc->id, notit->cur_event_class_id, |
862ca4ed | 1170 | notit->meta.tc); |
d6e69534 | 1171 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
1172 | goto end; |
1173 | } | |
1174 | ||
44c440bc | 1175 | notit->meta.ec = new_event_class; |
3f7d4d90 | 1176 | BT_LOGD("Set current event class: " |
fdf0e7a0 | 1177 | "notit-addr=%p, event-class-addr=%p, " |
44c440bc PP |
1178 | "event-class-id=%" PRId64 ", " |
1179 | "event-class-name=\"%s\"", | |
1180 | notit, notit->meta.ec, notit->meta.ec->id, | |
1181 | notit->meta.ec->name->str); | |
fdf0e7a0 | 1182 | |
e98a2d6e | 1183 | end: |
e98a2d6e PP |
1184 | return status; |
1185 | } | |
1186 | ||
312c056a | 1187 | static inline |
d6e69534 PP |
1188 | enum bt_msg_iter_status set_current_event_message( |
1189 | struct bt_msg_iter *notit) | |
312c056a | 1190 | { |
d6e69534 PP |
1191 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
1192 | bt_message *msg = NULL; | |
312c056a | 1193 | |
44c440bc | 1194 | BT_ASSERT(notit->meta.ec); |
312c056a | 1195 | BT_ASSERT(notit->packet); |
3f7d4d90 | 1196 | BT_LOGD("Creating event message from event class and packet: " |
312c056a | 1197 | "notit-addr=%p, ec-addr=%p, ec-name=\"%s\", packet-addr=%p", |
44c440bc PP |
1198 | notit, notit->meta.ec, |
1199 | notit->meta.ec->name->str, | |
312c056a | 1200 | notit->packet); |
d6e69534 | 1201 | BT_ASSERT(notit->msg_iter); |
2c091c04 PP |
1202 | BT_ASSERT(notit->meta.sc); |
1203 | ||
1204 | if (bt_stream_class_borrow_default_clock_class(notit->meta.sc->ir_sc)) { | |
1205 | msg = bt_message_event_create_with_default_clock_snapshot( | |
1206 | notit->msg_iter, notit->meta.ec->ir_ec, | |
1207 | notit->packet, notit->default_clock_snapshot); | |
1208 | } else { | |
1209 | msg = bt_message_event_create(notit->msg_iter, | |
1210 | notit->meta.ec->ir_ec, notit->packet); | |
1211 | } | |
1212 | ||
d6e69534 PP |
1213 | if (!msg) { |
1214 | BT_LOGE("Cannot create event message: " | |
312c056a PP |
1215 | "notit-addr=%p, ec-addr=%p, ec-name=\"%s\", " |
1216 | "packet-addr=%p", | |
44c440bc PP |
1217 | notit, notit->meta.ec, |
1218 | notit->meta.ec->name->str, | |
312c056a PP |
1219 | notit->packet); |
1220 | goto error; | |
1221 | } | |
1222 | ||
1223 | goto end; | |
1224 | ||
1225 | error: | |
d6e69534 PP |
1226 | BT_MESSAGE_PUT_REF_AND_RESET(msg); |
1227 | status = BT_MSG_ITER_STATUS_ERROR; | |
312c056a PP |
1228 | |
1229 | end: | |
d6e69534 | 1230 | BT_MESSAGE_MOVE_REF(notit->event_msg, msg); |
312c056a PP |
1231 | return status; |
1232 | } | |
1233 | ||
e98a2d6e | 1234 | static |
d6e69534 PP |
1235 | enum bt_msg_iter_status after_event_header_state( |
1236 | struct bt_msg_iter *notit) | |
e98a2d6e | 1237 | { |
d6e69534 | 1238 | enum bt_msg_iter_status status; |
e98a2d6e | 1239 | |
e98a2d6e | 1240 | status = set_current_event_class(notit); |
d6e69534 | 1241 | if (status != BT_MSG_ITER_STATUS_OK) { |
e98a2d6e PP |
1242 | goto end; |
1243 | } | |
1244 | ||
d6e69534 PP |
1245 | status = set_current_event_message(notit); |
1246 | if (status != BT_MSG_ITER_STATUS_OK) { | |
312c056a PP |
1247 | goto end; |
1248 | } | |
1249 | ||
d6e69534 PP |
1250 | notit->event = bt_message_event_borrow_event( |
1251 | notit->event_msg); | |
312c056a | 1252 | BT_ASSERT(notit->event); |
44c440bc | 1253 | notit->state = STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN; |
e98a2d6e PP |
1254 | |
1255 | end: | |
1256 | return status; | |
1257 | } | |
1258 | ||
1259 | static | |
d6e69534 PP |
1260 | enum bt_msg_iter_status read_event_common_context_begin_state( |
1261 | struct bt_msg_iter *notit) | |
e98a2d6e | 1262 | { |
d6e69534 | 1263 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 1264 | struct ctf_field_class *event_common_context_fc; |
e98a2d6e | 1265 | |
5cd6d0e5 PP |
1266 | event_common_context_fc = notit->meta.sc->event_common_context_fc; |
1267 | if (!event_common_context_fc) { | |
44c440bc | 1268 | notit->state = STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN; |
e98a2d6e PP |
1269 | goto end; |
1270 | } | |
1271 | ||
5cd6d0e5 | 1272 | if (event_common_context_fc->in_ir) { |
44c440bc PP |
1273 | BT_ASSERT(!notit->dscopes.event_common_context); |
1274 | notit->dscopes.event_common_context = | |
40f4ba76 | 1275 | bt_event_borrow_common_context_field( |
e5be10ef | 1276 | notit->event); |
44c440bc PP |
1277 | BT_ASSERT(notit->dscopes.event_common_context); |
1278 | } | |
1279 | ||
1280 | BT_LOGV("Decoding event common context field: " | |
fdf0e7a0 | 1281 | "notit-addr=%p, stream-class-addr=%p, " |
44c440bc | 1282 | "stream-class-id=%" PRId64 ", " |
5cd6d0e5 | 1283 | "fc-addr=%p", |
44c440bc PP |
1284 | notit, notit->meta.sc, |
1285 | notit->meta.sc->id, | |
5cd6d0e5 PP |
1286 | event_common_context_fc); |
1287 | status = read_dscope_begin_state(notit, event_common_context_fc, | |
44c440bc PP |
1288 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN, |
1289 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE, | |
1290 | notit->dscopes.event_common_context); | |
fdf0e7a0 | 1291 | if (status < 0) { |
44c440bc | 1292 | BT_LOGW("Cannot decode event common context field: " |
fdf0e7a0 | 1293 | "notit-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 1294 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1295 | notit, notit->meta.sc, |
1296 | notit->meta.sc->id, | |
5cd6d0e5 | 1297 | event_common_context_fc); |
fdf0e7a0 | 1298 | } |
e98a2d6e PP |
1299 | |
1300 | end: | |
e98a2d6e PP |
1301 | return status; |
1302 | } | |
1303 | ||
1304 | static | |
d6e69534 PP |
1305 | enum bt_msg_iter_status read_event_common_context_continue_state( |
1306 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
1307 | { |
1308 | return read_dscope_continue_state(notit, | |
44c440bc | 1309 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN); |
e98a2d6e PP |
1310 | } |
1311 | ||
1312 | static | |
d6e69534 PP |
1313 | enum bt_msg_iter_status read_event_spec_context_begin_state( |
1314 | struct bt_msg_iter *notit) | |
e98a2d6e | 1315 | { |
d6e69534 | 1316 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 1317 | struct ctf_field_class *event_spec_context_fc; |
e98a2d6e | 1318 | |
5cd6d0e5 PP |
1319 | event_spec_context_fc = notit->meta.ec->spec_context_fc; |
1320 | if (!event_spec_context_fc) { | |
835b2d10 | 1321 | notit->state = STATE_DSCOPE_EVENT_PAYLOAD_BEGIN; |
e98a2d6e PP |
1322 | goto end; |
1323 | } | |
fdf0e7a0 | 1324 | |
5cd6d0e5 | 1325 | if (event_spec_context_fc->in_ir) { |
44c440bc | 1326 | BT_ASSERT(!notit->dscopes.event_spec_context); |
e5be10ef | 1327 | notit->dscopes.event_spec_context = |
40f4ba76 | 1328 | bt_event_borrow_specific_context_field( |
e5be10ef | 1329 | notit->event); |
44c440bc PP |
1330 | BT_ASSERT(notit->dscopes.event_spec_context); |
1331 | } | |
1332 | ||
1333 | BT_LOGV("Decoding event specific context field: " | |
fdf0e7a0 PP |
1334 | "notit-addr=%p, event-class-addr=%p, " |
1335 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
5cd6d0e5 | 1336 | "fc-addr=%p", |
44c440bc PP |
1337 | notit, notit->meta.ec, |
1338 | notit->meta.ec->name->str, | |
1339 | notit->meta.ec->id, | |
5cd6d0e5 PP |
1340 | event_spec_context_fc); |
1341 | status = read_dscope_begin_state(notit, event_spec_context_fc, | |
e98a2d6e | 1342 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, |
44c440bc PP |
1343 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE, |
1344 | notit->dscopes.event_spec_context); | |
fdf0e7a0 | 1345 | if (status < 0) { |
44c440bc | 1346 | BT_LOGW("Cannot decode event specific context field: " |
fdf0e7a0 PP |
1347 | "notit-addr=%p, event-class-addr=%p, " |
1348 | "event-class-name=\"%s\", " | |
5cd6d0e5 | 1349 | "event-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1350 | notit, notit->meta.ec, |
1351 | notit->meta.ec->name->str, | |
1352 | notit->meta.ec->id, | |
5cd6d0e5 | 1353 | event_spec_context_fc); |
fdf0e7a0 | 1354 | } |
e98a2d6e PP |
1355 | |
1356 | end: | |
e98a2d6e PP |
1357 | return status; |
1358 | } | |
1359 | ||
1360 | static | |
d6e69534 PP |
1361 | enum bt_msg_iter_status read_event_spec_context_continue_state( |
1362 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
1363 | { |
1364 | return read_dscope_continue_state(notit, | |
1365 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN); | |
1366 | } | |
1367 | ||
1368 | static | |
d6e69534 PP |
1369 | enum bt_msg_iter_status read_event_payload_begin_state( |
1370 | struct bt_msg_iter *notit) | |
e98a2d6e | 1371 | { |
d6e69534 | 1372 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 1373 | struct ctf_field_class *event_payload_fc; |
e98a2d6e | 1374 | |
5cd6d0e5 PP |
1375 | event_payload_fc = notit->meta.ec->payload_fc; |
1376 | if (!event_payload_fc) { | |
d6e69534 | 1377 | notit->state = STATE_EMIT_MSG_EVENT; |
e98a2d6e PP |
1378 | goto end; |
1379 | } | |
1380 | ||
5cd6d0e5 | 1381 | if (event_payload_fc->in_ir) { |
44c440bc | 1382 | BT_ASSERT(!notit->dscopes.event_payload); |
e5be10ef | 1383 | notit->dscopes.event_payload = |
40f4ba76 | 1384 | bt_event_borrow_payload_field( |
e5be10ef | 1385 | notit->event); |
44c440bc PP |
1386 | BT_ASSERT(notit->dscopes.event_payload); |
1387 | } | |
1388 | ||
fdf0e7a0 PP |
1389 | BT_LOGV("Decoding event payload field: " |
1390 | "notit-addr=%p, event-class-addr=%p, " | |
1391 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
5cd6d0e5 | 1392 | "fc-addr=%p", |
44c440bc PP |
1393 | notit, notit->meta.ec, |
1394 | notit->meta.ec->name->str, | |
1395 | notit->meta.ec->id, | |
5cd6d0e5 PP |
1396 | event_payload_fc); |
1397 | status = read_dscope_begin_state(notit, event_payload_fc, | |
d6e69534 | 1398 | STATE_EMIT_MSG_EVENT, |
e98a2d6e | 1399 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, |
312c056a | 1400 | notit->dscopes.event_payload); |
fdf0e7a0 PP |
1401 | if (status < 0) { |
1402 | BT_LOGW("Cannot decode event payload field: " | |
1403 | "notit-addr=%p, event-class-addr=%p, " | |
1404 | "event-class-name=\"%s\", " | |
5cd6d0e5 | 1405 | "event-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1406 | notit, notit->meta.ec, |
1407 | notit->meta.ec->name->str, | |
1408 | notit->meta.ec->id, | |
5cd6d0e5 | 1409 | event_payload_fc); |
fdf0e7a0 | 1410 | } |
e98a2d6e PP |
1411 | |
1412 | end: | |
e98a2d6e PP |
1413 | return status; |
1414 | } | |
1415 | ||
1416 | static | |
d6e69534 PP |
1417 | enum bt_msg_iter_status read_event_payload_continue_state( |
1418 | struct bt_msg_iter *notit) | |
e98a2d6e | 1419 | { |
d6e69534 | 1420 | return read_dscope_continue_state(notit, STATE_EMIT_MSG_EVENT); |
e98a2d6e PP |
1421 | } |
1422 | ||
1423 | static | |
fc917f65 | 1424 | enum bt_msg_iter_status skip_packet_padding_state(struct bt_msg_iter *notit) |
e98a2d6e | 1425 | { |
d6e69534 | 1426 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e PP |
1427 | size_t bits_to_skip; |
1428 | ||
44c440bc PP |
1429 | BT_ASSERT(notit->cur_exp_packet_total_size > 0); |
1430 | bits_to_skip = notit->cur_exp_packet_total_size - packet_at(notit); | |
e98a2d6e PP |
1431 | if (bits_to_skip == 0) { |
1432 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1433 | goto end; | |
1434 | } else { | |
1435 | size_t bits_to_consume; | |
fdf0e7a0 | 1436 | |
3f7d4d90 | 1437 | BT_LOGD("Trying to skip %zu bits of padding: notit-addr=%p, size=%zu", |
fdf0e7a0 | 1438 | bits_to_skip, notit, bits_to_skip); |
e98a2d6e | 1439 | status = buf_ensure_available_bits(notit); |
d6e69534 | 1440 | if (status != BT_MSG_ITER_STATUS_OK) { |
e98a2d6e PP |
1441 | goto end; |
1442 | } | |
1443 | ||
1444 | bits_to_consume = MIN(buf_available_bits(notit), bits_to_skip); | |
3f7d4d90 | 1445 | BT_LOGD("Skipping %zu bits of padding: notit-addr=%p, size=%zu", |
fdf0e7a0 | 1446 | bits_to_consume, notit, bits_to_consume); |
e98a2d6e | 1447 | buf_consume_bits(notit, bits_to_consume); |
44c440bc PP |
1448 | bits_to_skip = notit->cur_exp_packet_total_size - |
1449 | packet_at(notit); | |
e98a2d6e PP |
1450 | if (bits_to_skip == 0) { |
1451 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1452 | goto end; | |
1453 | } | |
1454 | } | |
1455 | ||
1456 | end: | |
1457 | return status; | |
1458 | } | |
1459 | ||
495490c5 PP |
1460 | static |
1461 | enum bt_msg_iter_status check_emit_msg_stream_beginning_state( | |
1462 | struct bt_msg_iter *notit) | |
1463 | { | |
1464 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; | |
1465 | ||
1466 | if (notit->set_stream) { | |
1467 | status = set_current_stream(notit); | |
1468 | if (status != BT_MSG_ITER_STATUS_OK) { | |
1469 | goto end; | |
1470 | } | |
1471 | } | |
1472 | ||
1473 | if (notit->emit_stream_begin_msg) { | |
1474 | notit->state = STATE_EMIT_MSG_STREAM_BEGINNING; | |
1475 | } else { | |
1476 | /* Stream's first packet */ | |
1477 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS; | |
1478 | } | |
1479 | ||
1480 | end: | |
1481 | return status; | |
1482 | } | |
1483 | ||
1484 | static | |
1485 | enum bt_msg_iter_status check_emit_msg_discarded_events( | |
1486 | struct bt_msg_iter *notit) | |
1487 | { | |
1488 | notit->state = STATE_EMIT_MSG_DISCARDED_EVENTS; | |
1489 | ||
afd45274 PP |
1490 | if (!notit->meta.sc->has_discarded_events) { |
1491 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; | |
1492 | goto end; | |
1493 | } | |
1494 | ||
495490c5 PP |
1495 | if (notit->prev_packet_snapshots.discarded_events == UINT64_C(-1)) { |
1496 | if (notit->snapshots.discarded_events == 0 || | |
1497 | notit->snapshots.discarded_events == UINT64_C(-1)) { | |
1498 | /* | |
1499 | * Stream's first packet with no discarded | |
1500 | * events or no information about discarded | |
1501 | * events: do not emit. | |
1502 | */ | |
1503 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; | |
1504 | } | |
1505 | } else { | |
1506 | /* | |
1507 | * If the previous packet has a value for this counter, | |
1508 | * then this counter is defined for the whole stream. | |
1509 | */ | |
1510 | BT_ASSERT(notit->snapshots.discarded_events != UINT64_C(-1)); | |
1511 | ||
1512 | if (notit->snapshots.discarded_events - | |
1513 | notit->prev_packet_snapshots.discarded_events == 0) { | |
1514 | /* | |
1515 | * No discarded events since previous packet: do | |
1516 | * not emit. | |
1517 | */ | |
1518 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; | |
1519 | } | |
1520 | } | |
1521 | ||
afd45274 | 1522 | end: |
495490c5 PP |
1523 | return BT_MSG_ITER_STATUS_OK; |
1524 | } | |
1525 | ||
1526 | static | |
1527 | enum bt_msg_iter_status check_emit_msg_discarded_packets( | |
1528 | struct bt_msg_iter *notit) | |
1529 | { | |
1530 | notit->state = STATE_EMIT_MSG_DISCARDED_PACKETS; | |
1531 | ||
afd45274 PP |
1532 | if (!notit->meta.sc->has_discarded_packets) { |
1533 | notit->state = STATE_EMIT_MSG_PACKET_BEGINNING; | |
1534 | goto end; | |
1535 | } | |
1536 | ||
495490c5 PP |
1537 | if (notit->prev_packet_snapshots.packets == UINT64_C(-1)) { |
1538 | /* | |
1539 | * Stream's first packet or no information about | |
1540 | * discarded packets: do not emit. In other words, if | |
1541 | * this is the first packet and its sequence number is | |
1542 | * not 0, do not consider that packets were previously | |
1543 | * lost: we might be reading a partial stream (LTTng | |
1544 | * snapshot for example). | |
1545 | */ | |
1546 | notit->state = STATE_EMIT_MSG_PACKET_BEGINNING; | |
1547 | } else { | |
1548 | /* | |
1549 | * If the previous packet has a value for this counter, | |
1550 | * then this counter is defined for the whole stream. | |
1551 | */ | |
1552 | BT_ASSERT(notit->snapshots.packets != UINT64_C(-1)); | |
1553 | ||
1554 | if (notit->snapshots.packets - | |
1555 | notit->prev_packet_snapshots.packets <= 1) { | |
1556 | /* | |
1557 | * No discarded packets since previous packet: | |
1558 | * do not emit. | |
1559 | */ | |
1560 | notit->state = STATE_EMIT_MSG_PACKET_BEGINNING; | |
1561 | } | |
1562 | } | |
1563 | ||
afd45274 | 1564 | end: |
495490c5 PP |
1565 | return BT_MSG_ITER_STATUS_OK; |
1566 | } | |
1567 | ||
1568 | static | |
1569 | enum bt_msg_iter_status check_emit_msg_stream_activity_end( | |
1570 | struct bt_msg_iter *notit) | |
1571 | { | |
1572 | if (notit->emit_stream_end_msg) { | |
1573 | notit->state = STATE_EMIT_MSG_STREAM_ACTIVITY_END; | |
1574 | } else { | |
1575 | notit->state = STATE_DONE; | |
1576 | } | |
1577 | ||
1578 | return BT_MSG_ITER_STATUS_OK; | |
1579 | } | |
1580 | ||
e98a2d6e | 1581 | static inline |
d6e69534 | 1582 | enum bt_msg_iter_status handle_state(struct bt_msg_iter *notit) |
e98a2d6e | 1583 | { |
d6e69534 | 1584 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
fdf0e7a0 | 1585 | const enum state state = notit->state; |
e98a2d6e | 1586 | |
fdf0e7a0 PP |
1587 | BT_LOGV("Handling state: notit-addr=%p, state=%s", |
1588 | notit, state_string(state)); | |
e98a2d6e PP |
1589 | |
1590 | // TODO: optimalize! | |
fdf0e7a0 | 1591 | switch (state) { |
e98a2d6e PP |
1592 | case STATE_INIT: |
1593 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1594 | break; | |
1595 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
1596 | status = read_packet_header_begin_state(notit); | |
1597 | break; | |
1598 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
1599 | status = read_packet_header_continue_state(notit); | |
1600 | break; | |
1601 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
1602 | status = after_packet_header_state(notit); | |
1603 | break; | |
1604 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
1605 | status = read_packet_context_begin_state(notit); | |
1606 | break; | |
1607 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
1608 | status = read_packet_context_continue_state(notit); | |
1609 | break; | |
1610 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
1611 | status = after_packet_context_state(notit); | |
1612 | break; | |
495490c5 PP |
1613 | case STATE_CHECK_EMIT_MSG_STREAM_BEGINNING: |
1614 | status = check_emit_msg_stream_beginning_state(notit); | |
1615 | break; | |
fc917f65 PP |
1616 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
1617 | notit->state = STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING; | |
1618 | break; | |
1619 | case STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING: | |
495490c5 PP |
1620 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS; |
1621 | break; | |
1622 | case STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS: | |
1623 | status = check_emit_msg_discarded_events(notit); | |
1624 | break; | |
1625 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
1626 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; | |
1627 | break; | |
1628 | case STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS: | |
1629 | status = check_emit_msg_discarded_packets(notit); | |
1630 | break; | |
1631 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
fc917f65 | 1632 | notit->state = STATE_EMIT_MSG_PACKET_BEGINNING; |
f42867e2 | 1633 | break; |
fc917f65 | 1634 | case STATE_EMIT_MSG_PACKET_BEGINNING: |
44c440bc | 1635 | notit->state = STATE_DSCOPE_EVENT_HEADER_BEGIN; |
e98a2d6e | 1636 | break; |
44c440bc | 1637 | case STATE_DSCOPE_EVENT_HEADER_BEGIN: |
e98a2d6e PP |
1638 | status = read_event_header_begin_state(notit); |
1639 | break; | |
44c440bc | 1640 | case STATE_DSCOPE_EVENT_HEADER_CONTINUE: |
e98a2d6e PP |
1641 | status = read_event_header_continue_state(notit); |
1642 | break; | |
44c440bc | 1643 | case STATE_AFTER_EVENT_HEADER: |
e98a2d6e PP |
1644 | status = after_event_header_state(notit); |
1645 | break; | |
44c440bc PP |
1646 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN: |
1647 | status = read_event_common_context_begin_state(notit); | |
e98a2d6e | 1648 | break; |
44c440bc PP |
1649 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE: |
1650 | status = read_event_common_context_continue_state(notit); | |
e98a2d6e | 1651 | break; |
44c440bc PP |
1652 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN: |
1653 | status = read_event_spec_context_begin_state(notit); | |
e98a2d6e | 1654 | break; |
44c440bc PP |
1655 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE: |
1656 | status = read_event_spec_context_continue_state(notit); | |
e98a2d6e PP |
1657 | break; |
1658 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
1659 | status = read_event_payload_begin_state(notit); | |
1660 | break; | |
1661 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
1662 | status = read_event_payload_continue_state(notit); | |
1663 | break; | |
d6e69534 | 1664 | case STATE_EMIT_MSG_EVENT: |
44c440bc | 1665 | notit->state = STATE_DSCOPE_EVENT_HEADER_BEGIN; |
e98a2d6e PP |
1666 | break; |
1667 | case STATE_SKIP_PACKET_PADDING: | |
1668 | status = skip_packet_padding_state(notit); | |
1669 | break; | |
fc917f65 | 1670 | case STATE_EMIT_MSG_PACKET_END_MULTI: |
e98a2d6e PP |
1671 | notit->state = STATE_SKIP_PACKET_PADDING; |
1672 | break; | |
fc917f65 | 1673 | case STATE_EMIT_MSG_PACKET_END_SINGLE: |
495490c5 PP |
1674 | notit->state = STATE_CHECK_EMIT_MSG_STREAM_ACTIVITY_END; |
1675 | break; | |
1676 | case STATE_CHECK_EMIT_MSG_STREAM_ACTIVITY_END: | |
1677 | status = check_emit_msg_stream_activity_end(notit); | |
fc917f65 PP |
1678 | break; |
1679 | case STATE_EMIT_MSG_STREAM_ACTIVITY_END: | |
1680 | notit->state = STATE_EMIT_MSG_STREAM_END; | |
1681 | break; | |
1682 | case STATE_EMIT_MSG_STREAM_END: | |
1683 | notit->state = STATE_DONE; | |
1684 | break; | |
1685 | case STATE_DONE: | |
1686 | break; | |
fdf0e7a0 | 1687 | default: |
3f7d4d90 | 1688 | BT_LOGF("Unknown CTF plugin message iterator state: " |
fdf0e7a0 PP |
1689 | "notit-addr=%p, state=%d", notit, notit->state); |
1690 | abort(); | |
e98a2d6e PP |
1691 | } |
1692 | ||
fdf0e7a0 PP |
1693 | BT_LOGV("Handled state: notit-addr=%p, status=%s, " |
1694 | "prev-state=%s, cur-state=%s", | |
d6e69534 | 1695 | notit, bt_msg_iter_status_string(status), |
fdf0e7a0 | 1696 | state_string(state), state_string(notit->state)); |
e98a2d6e PP |
1697 | return status; |
1698 | } | |
1699 | ||
f42867e2 | 1700 | BT_HIDDEN |
495490c5 | 1701 | void bt_msg_iter_reset_for_next_stream_file(struct bt_msg_iter *notit) |
e98a2d6e | 1702 | { |
f6ccaed9 | 1703 | BT_ASSERT(notit); |
d6e69534 | 1704 | BT_LOGD("Resetting message iterator: addr=%p", notit); |
e98a2d6e | 1705 | stack_clear(notit->stack); |
44c440bc PP |
1706 | notit->meta.sc = NULL; |
1707 | notit->meta.ec = NULL; | |
c5b9b441 PP |
1708 | BT_PACKET_PUT_REF_AND_RESET(notit->packet); |
1709 | BT_STREAM_PUT_REF_AND_RESET(notit->stream); | |
d6e69534 | 1710 | BT_MESSAGE_PUT_REF_AND_RESET(notit->event_msg); |
312c056a PP |
1711 | release_all_dscopes(notit); |
1712 | notit->cur_dscope_field = NULL; | |
1713 | ||
312c056a | 1714 | if (notit->packet_context_field) { |
40f4ba76 | 1715 | bt_packet_context_field_release(notit->packet_context_field); |
312c056a PP |
1716 | notit->packet_context_field = NULL; |
1717 | } | |
1718 | ||
e98a2d6e PP |
1719 | notit->buf.addr = NULL; |
1720 | notit->buf.sz = 0; | |
1721 | notit->buf.at = 0; | |
2b186c3e | 1722 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
1723 | notit->buf.packet_offset = 0; |
1724 | notit->state = STATE_INIT; | |
44c440bc PP |
1725 | notit->cur_exp_packet_content_size = -1; |
1726 | notit->cur_exp_packet_total_size = -1; | |
9e0c8dbb | 1727 | notit->cur_packet_offset = -1; |
44c440bc | 1728 | notit->cur_event_class_id = -1; |
495490c5 PP |
1729 | notit->snapshots.beginning_clock = UINT64_C(-1); |
1730 | notit->snapshots.end_clock = UINT64_C(-1); | |
1731 | } | |
1732 | ||
1733 | /** | |
1734 | * Resets the internal state of a CTF message iterator. | |
1735 | */ | |
1736 | BT_HIDDEN | |
1737 | void bt_msg_iter_reset(struct bt_msg_iter *notit) | |
1738 | { | |
1739 | bt_msg_iter_reset_for_next_stream_file(notit); | |
1740 | notit->cur_stream_class_id = -1; | |
44c440bc | 1741 | notit->cur_data_stream_id = -1; |
fc917f65 PP |
1742 | notit->emit_stream_begin_msg = true; |
1743 | notit->emit_stream_end_msg = true; | |
495490c5 PP |
1744 | notit->snapshots.discarded_events = UINT64_C(-1); |
1745 | notit->snapshots.packets = UINT64_C(-1); | |
1746 | notit->prev_packet_snapshots.discarded_events = UINT64_C(-1); | |
1747 | notit->prev_packet_snapshots.packets = UINT64_C(-1); | |
1748 | notit->prev_packet_snapshots.beginning_clock = UINT64_C(-1); | |
1749 | notit->prev_packet_snapshots.end_clock = UINT64_C(-1); | |
e98a2d6e PP |
1750 | } |
1751 | ||
2cf1d51e | 1752 | static |
d6e69534 | 1753 | int bt_msg_iter_switch_packet(struct bt_msg_iter *notit) |
2cf1d51e JG |
1754 | { |
1755 | int ret = 0; | |
1756 | ||
115de887 PP |
1757 | /* |
1758 | * We don't put the stream class here because we need to make | |
d6e69534 | 1759 | * sure that all the packets processed by the same message |
115de887 PP |
1760 | * iterator refer to the same stream class (the first one). |
1761 | */ | |
f6ccaed9 | 1762 | BT_ASSERT(notit); |
312c056a | 1763 | |
44c440bc PP |
1764 | if (notit->cur_exp_packet_total_size != -1) { |
1765 | notit->cur_packet_offset += notit->cur_exp_packet_total_size; | |
9e0c8dbb | 1766 | } |
312c056a | 1767 | |
3f7d4d90 | 1768 | BT_LOGD("Switching packet: notit-addr=%p, cur=%zu, " |
9e0c8dbb JG |
1769 | "packet-offset=%" PRId64, notit, notit->buf.at, |
1770 | notit->cur_packet_offset); | |
2cf1d51e | 1771 | stack_clear(notit->stack); |
44c440bc | 1772 | notit->meta.ec = NULL; |
c5b9b441 | 1773 | BT_PACKET_PUT_REF_AND_RESET(notit->packet); |
d6e69534 | 1774 | BT_MESSAGE_PUT_REF_AND_RESET(notit->event_msg); |
312c056a PP |
1775 | release_all_dscopes(notit); |
1776 | notit->cur_dscope_field = NULL; | |
2cf1d51e JG |
1777 | |
1778 | /* | |
1779 | * Adjust current buffer so that addr points to the beginning of the new | |
1780 | * packet. | |
1781 | */ | |
1782 | if (notit->buf.addr) { | |
1783 | size_t consumed_bytes = (size_t) (notit->buf.at / CHAR_BIT); | |
1784 | ||
1785 | /* Packets are assumed to start on a byte frontier. */ | |
1786 | if (notit->buf.at % CHAR_BIT) { | |
fdf0e7a0 PP |
1787 | BT_LOGW("Cannot switch packet: current position is not a multiple of 8: " |
1788 | "notit-addr=%p, cur=%zu", notit, notit->buf.at); | |
2cf1d51e JG |
1789 | ret = -1; |
1790 | goto end; | |
1791 | } | |
1792 | ||
1793 | notit->buf.addr += consumed_bytes; | |
1794 | notit->buf.sz -= consumed_bytes; | |
1795 | notit->buf.at = 0; | |
1796 | notit->buf.packet_offset = 0; | |
3f7d4d90 | 1797 | BT_LOGD("Adjusted buffer: addr=%p, size=%zu", |
fdf0e7a0 | 1798 | notit->buf.addr, notit->buf.sz); |
2cf1d51e JG |
1799 | } |
1800 | ||
44c440bc PP |
1801 | notit->cur_exp_packet_content_size = -1; |
1802 | notit->cur_exp_packet_total_size = -1; | |
1803 | notit->cur_stream_class_id = -1; | |
1804 | notit->cur_event_class_id = -1; | |
1805 | notit->cur_data_stream_id = -1; | |
495490c5 | 1806 | notit->prev_packet_snapshots = notit->snapshots; |
44c440bc PP |
1807 | notit->snapshots.discarded_events = UINT64_C(-1); |
1808 | notit->snapshots.packets = UINT64_C(-1); | |
1809 | notit->snapshots.beginning_clock = UINT64_C(-1); | |
1810 | notit->snapshots.end_clock = UINT64_C(-1); | |
fdf0e7a0 | 1811 | |
2cf1d51e JG |
1812 | end: |
1813 | return ret; | |
1814 | } | |
1815 | ||
e98a2d6e | 1816 | static |
d6e69534 | 1817 | bt_field *borrow_next_field(struct bt_msg_iter *notit) |
e98a2d6e | 1818 | { |
b19ff26f PP |
1819 | bt_field *next_field = NULL; |
1820 | bt_field *base_field; | |
1821 | const bt_field_class *base_fc; | |
e98a2d6e PP |
1822 | size_t index; |
1823 | ||
f6ccaed9 | 1824 | BT_ASSERT(!stack_empty(notit->stack)); |
e98a2d6e PP |
1825 | index = stack_top(notit->stack)->index; |
1826 | base_field = stack_top(notit->stack)->base; | |
f6ccaed9 | 1827 | BT_ASSERT(base_field); |
40f4ba76 | 1828 | base_fc = bt_field_borrow_class_const(base_field); |
5cd6d0e5 | 1829 | BT_ASSERT(base_fc); |
e98a2d6e | 1830 | |
40f4ba76 | 1831 | switch (bt_field_class_get_type(base_fc)) { |
864cad70 | 1832 | case BT_FIELD_CLASS_TYPE_STRUCTURE: |
f42867e2 | 1833 | { |
44c440bc | 1834 | BT_ASSERT(index < |
5cd6d0e5 | 1835 | bt_field_class_structure_get_member_count( |
40f4ba76 PP |
1836 | bt_field_borrow_class_const( |
1837 | base_field))); | |
e5be10ef | 1838 | next_field = |
40f4ba76 | 1839 | bt_field_structure_borrow_member_field_by_index( |
e5be10ef | 1840 | base_field, index); |
e98a2d6e | 1841 | break; |
f42867e2 | 1842 | } |
864cad70 PP |
1843 | case BT_FIELD_CLASS_TYPE_STATIC_ARRAY: |
1844 | case BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY: | |
40f4ba76 PP |
1845 | BT_ASSERT(index < bt_field_array_get_length(base_field)); |
1846 | next_field = bt_field_array_borrow_element_field_by_index( | |
44c440bc | 1847 | base_field, index); |
e98a2d6e | 1848 | break; |
864cad70 | 1849 | case BT_FIELD_CLASS_TYPE_VARIANT: |
44c440bc | 1850 | BT_ASSERT(index == 0); |
40f4ba76 | 1851 | next_field = bt_field_variant_borrow_selected_option_field( |
44c440bc | 1852 | base_field); |
e98a2d6e PP |
1853 | break; |
1854 | default: | |
0fbb9a9f | 1855 | abort(); |
e98a2d6e PP |
1856 | } |
1857 | ||
44c440bc | 1858 | BT_ASSERT(next_field); |
e98a2d6e PP |
1859 | return next_field; |
1860 | } | |
1861 | ||
c44c3e70 | 1862 | static |
d6e69534 | 1863 | void update_default_clock(struct bt_msg_iter *notit, uint64_t new_val, |
44c440bc | 1864 | uint64_t new_val_size) |
c44c3e70 | 1865 | { |
44c440bc | 1866 | uint64_t new_val_mask; |
c44c3e70 | 1867 | uint64_t cur_value_masked; |
c44c3e70 | 1868 | |
44c440bc | 1869 | BT_ASSERT(new_val_size > 0); |
c44c3e70 JG |
1870 | |
1871 | /* | |
1872 | * Special case for a 64-bit new value, which is the limit | |
1873 | * of a clock value as of this version: overwrite the | |
1874 | * current value directly. | |
1875 | */ | |
44c440bc | 1876 | if (new_val_size == 64) { |
605e1019 | 1877 | notit->default_clock_snapshot = new_val; |
c44c3e70 JG |
1878 | goto end; |
1879 | } | |
1880 | ||
44c440bc | 1881 | new_val_mask = (1ULL << new_val_size) - 1; |
605e1019 | 1882 | cur_value_masked = notit->default_clock_snapshot & new_val_mask; |
c44c3e70 | 1883 | |
44c440bc | 1884 | if (new_val < cur_value_masked) { |
c44c3e70 JG |
1885 | /* |
1886 | * It looks like a wrap happened on the number of bits | |
1887 | * of the requested new value. Assume that the clock | |
1888 | * value wrapped only one time. | |
1889 | */ | |
605e1019 | 1890 | notit->default_clock_snapshot += new_val_mask + 1; |
c44c3e70 JG |
1891 | } |
1892 | ||
1893 | /* Clear the low bits of the current clock value. */ | |
605e1019 | 1894 | notit->default_clock_snapshot &= ~new_val_mask; |
c44c3e70 JG |
1895 | |
1896 | /* Set the low bits of the current clock value. */ | |
605e1019 | 1897 | notit->default_clock_snapshot |= new_val; |
d1e46835 | 1898 | |
c44c3e70 | 1899 | end: |
44c440bc | 1900 | BT_LOGV("Updated default clock's value from integer field's value: " |
605e1019 | 1901 | "value=%" PRIu64, notit->default_clock_snapshot); |
c44c3e70 JG |
1902 | } |
1903 | ||
1904 | static | |
5cd6d0e5 PP |
1905 | enum bt_bfcr_status bfcr_unsigned_int_cb(uint64_t value, |
1906 | struct ctf_field_class *fc, void *data) | |
c44c3e70 | 1907 | { |
d6e69534 | 1908 | struct bt_msg_iter *notit = data; |
5cd6d0e5 | 1909 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 1910 | bt_field *field = NULL; |
5cd6d0e5 | 1911 | struct ctf_field_class_int *int_fc = (void *) fc; |
c44c3e70 | 1912 | |
5cd6d0e5 PP |
1913 | BT_LOGV("Unsigned integer function called from BFCR: " |
1914 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
1915 | "fc-type=%d, fc-in-ir=%d, value=%" PRIu64, |
1916 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
312c056a | 1917 | |
91d81473 | 1918 | if (G_LIKELY(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE)) { |
44c440bc | 1919 | goto update_def_clock; |
c44c3e70 JG |
1920 | } |
1921 | ||
5cd6d0e5 PP |
1922 | switch (int_fc->meaning) { |
1923 | case CTF_FIELD_CLASS_MEANING_EVENT_CLASS_ID: | |
44c440bc PP |
1924 | notit->cur_event_class_id = value; |
1925 | break; | |
5cd6d0e5 | 1926 | case CTF_FIELD_CLASS_MEANING_DATA_STREAM_ID: |
44c440bc PP |
1927 | notit->cur_data_stream_id = value; |
1928 | break; | |
5cd6d0e5 | 1929 | case CTF_FIELD_CLASS_MEANING_PACKET_BEGINNING_TIME: |
44c440bc PP |
1930 | notit->snapshots.beginning_clock = value; |
1931 | break; | |
5cd6d0e5 | 1932 | case CTF_FIELD_CLASS_MEANING_PACKET_END_TIME: |
44c440bc PP |
1933 | notit->snapshots.end_clock = value; |
1934 | break; | |
5cd6d0e5 | 1935 | case CTF_FIELD_CLASS_MEANING_STREAM_CLASS_ID: |
44c440bc PP |
1936 | notit->cur_stream_class_id = value; |
1937 | break; | |
5cd6d0e5 | 1938 | case CTF_FIELD_CLASS_MEANING_MAGIC: |
44c440bc PP |
1939 | if (value != 0xc1fc1fc1) { |
1940 | BT_LOGW("Invalid CTF magic number: notit-addr=%p, " | |
1941 | "magic=%" PRIx64, notit, value); | |
5cd6d0e5 | 1942 | status = BT_BFCR_STATUS_ERROR; |
c44c3e70 JG |
1943 | goto end; |
1944 | } | |
fdf0e7a0 | 1945 | |
44c440bc | 1946 | break; |
5cd6d0e5 | 1947 | case CTF_FIELD_CLASS_MEANING_PACKET_COUNTER_SNAPSHOT: |
44c440bc PP |
1948 | notit->snapshots.packets = value; |
1949 | break; | |
5cd6d0e5 | 1950 | case CTF_FIELD_CLASS_MEANING_DISC_EV_REC_COUNTER_SNAPSHOT: |
44c440bc PP |
1951 | notit->snapshots.discarded_events = value; |
1952 | break; | |
5cd6d0e5 | 1953 | case CTF_FIELD_CLASS_MEANING_EXP_PACKET_TOTAL_SIZE: |
44c440bc PP |
1954 | notit->cur_exp_packet_total_size = value; |
1955 | break; | |
5cd6d0e5 | 1956 | case CTF_FIELD_CLASS_MEANING_EXP_PACKET_CONTENT_SIZE: |
44c440bc PP |
1957 | notit->cur_exp_packet_content_size = value; |
1958 | break; | |
1959 | default: | |
1960 | abort(); | |
c44c3e70 JG |
1961 | } |
1962 | ||
44c440bc | 1963 | update_def_clock: |
91d81473 | 1964 | if (G_UNLIKELY(int_fc->mapped_clock_class)) { |
5cd6d0e5 | 1965 | update_default_clock(notit, value, int_fc->base.size); |
44c440bc | 1966 | } |
c44c3e70 | 1967 | |
91d81473 | 1968 | if (G_UNLIKELY(int_fc->storing_index >= 0)) { |
44c440bc | 1969 | g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 1970 | (uint64_t) int_fc->storing_index) = value; |
44c440bc | 1971 | } |
e98a2d6e | 1972 | |
91d81473 | 1973 | if (G_UNLIKELY(!fc->in_ir)) { |
312c056a | 1974 | goto end; |
e98a2d6e PP |
1975 | } |
1976 | ||
44c440bc PP |
1977 | field = borrow_next_field(notit); |
1978 | BT_ASSERT(field); | |
40f4ba76 PP |
1979 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
1980 | BT_ASSERT(bt_field_get_class_type(field) == | |
1981 | BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER || | |
1982 | bt_field_get_class_type(field) == | |
1983 | BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION); | |
1984 | bt_field_unsigned_integer_set_value(field, value); | |
e98a2d6e | 1985 | stack_top(notit->stack)->index++; |
fdf0e7a0 | 1986 | |
312c056a | 1987 | end: |
e98a2d6e PP |
1988 | return status; |
1989 | } | |
1990 | ||
5f870343 | 1991 | static |
5cd6d0e5 PP |
1992 | enum bt_bfcr_status bfcr_unsigned_int_char_cb(uint64_t value, |
1993 | struct ctf_field_class *fc, void *data) | |
5f870343 | 1994 | { |
44c440bc | 1995 | int ret; |
d6e69534 | 1996 | struct bt_msg_iter *notit = data; |
5cd6d0e5 | 1997 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 1998 | bt_field *string_field = NULL; |
5cd6d0e5 | 1999 | struct ctf_field_class_int *int_fc = (void *) fc; |
44c440bc | 2000 | char str[2] = {'\0', '\0'}; |
5f870343 | 2001 | |
5cd6d0e5 PP |
2002 | BT_LOGV("Unsigned integer character function called from BFCR: " |
2003 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2004 | "fc-type=%d, fc-in-ir=%d, value=%" PRIu64, |
2005 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
5cd6d0e5 PP |
2006 | BT_ASSERT(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE); |
2007 | BT_ASSERT(!int_fc->mapped_clock_class); | |
2008 | BT_ASSERT(int_fc->storing_index < 0); | |
312c056a | 2009 | |
91d81473 | 2010 | if (G_UNLIKELY(!fc->in_ir)) { |
44c440bc PP |
2011 | goto end; |
2012 | } | |
5f870343 | 2013 | |
44c440bc | 2014 | if (notit->done_filling_string) { |
5f870343 JG |
2015 | goto end; |
2016 | } | |
2017 | ||
44c440bc PP |
2018 | if (value == 0) { |
2019 | notit->done_filling_string = true; | |
5f870343 JG |
2020 | goto end; |
2021 | } | |
2022 | ||
44c440bc | 2023 | string_field = stack_top(notit->stack)->base; |
40f4ba76 PP |
2024 | BT_ASSERT(bt_field_get_class_type(string_field) == |
2025 | BT_FIELD_CLASS_TYPE_STRING); | |
44c440bc PP |
2026 | |
2027 | /* Append character */ | |
2028 | str[0] = (char) value; | |
40f4ba76 | 2029 | ret = bt_field_string_append_with_length(string_field, str, 1); |
44c440bc PP |
2030 | if (ret) { |
2031 | BT_LOGE("Cannot append character to string field's value: " | |
2032 | "notit-addr=%p, field-addr=%p, ret=%d", | |
2033 | notit, string_field, ret); | |
5cd6d0e5 | 2034 | status = BT_BFCR_STATUS_ERROR; |
44c440bc PP |
2035 | goto end; |
2036 | } | |
312c056a | 2037 | |
5f870343 JG |
2038 | end: |
2039 | return status; | |
2040 | } | |
2041 | ||
2042 | static | |
5cd6d0e5 PP |
2043 | enum bt_bfcr_status bfcr_signed_int_cb(int64_t value, |
2044 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2045 | { |
5cd6d0e5 | 2046 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2047 | bt_field *field = NULL; |
d6e69534 | 2048 | struct bt_msg_iter *notit = data; |
5cd6d0e5 | 2049 | struct ctf_field_class_int *int_fc = (void *) fc; |
e98a2d6e | 2050 | |
5cd6d0e5 PP |
2051 | BT_LOGV("Signed integer function called from BFCR: " |
2052 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2053 | "fc-type=%d, fc-in-ir=%d, value=%" PRId64, |
2054 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
5cd6d0e5 | 2055 | BT_ASSERT(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE); |
44c440bc | 2056 | |
91d81473 | 2057 | if (G_UNLIKELY(int_fc->storing_index >= 0)) { |
44c440bc | 2058 | g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 2059 | (uint64_t) int_fc->storing_index) = (uint64_t) value; |
44c440bc PP |
2060 | } |
2061 | ||
91d81473 | 2062 | if (G_UNLIKELY(!fc->in_ir)) { |
312c056a | 2063 | goto end; |
e98a2d6e PP |
2064 | } |
2065 | ||
44c440bc PP |
2066 | field = borrow_next_field(notit); |
2067 | BT_ASSERT(field); | |
40f4ba76 PP |
2068 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
2069 | BT_ASSERT(bt_field_get_class_type(field) == | |
2070 | BT_FIELD_CLASS_TYPE_SIGNED_INTEGER || | |
2071 | bt_field_get_class_type(field) == | |
2072 | BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION); | |
2073 | bt_field_signed_integer_set_value(field, value); | |
e98a2d6e | 2074 | stack_top(notit->stack)->index++; |
fdf0e7a0 | 2075 | |
312c056a | 2076 | end: |
e98a2d6e PP |
2077 | return status; |
2078 | } | |
2079 | ||
2080 | static | |
5cd6d0e5 PP |
2081 | enum bt_bfcr_status bfcr_floating_point_cb(double value, |
2082 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2083 | { |
5cd6d0e5 | 2084 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2085 | bt_field *field = NULL; |
d6e69534 | 2086 | struct bt_msg_iter *notit = data; |
e98a2d6e | 2087 | |
5cd6d0e5 PP |
2088 | BT_LOGV("Floating point number function called from BFCR: " |
2089 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2090 | "fc-type=%d, fc-in-ir=%d, value=%f", |
2091 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
41693723 | 2092 | |
91d81473 | 2093 | if (G_UNLIKELY(!fc->in_ir)) { |
41693723 PP |
2094 | goto end; |
2095 | } | |
2096 | ||
312c056a | 2097 | field = borrow_next_field(notit); |
44c440bc | 2098 | BT_ASSERT(field); |
40f4ba76 PP |
2099 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
2100 | BT_ASSERT(bt_field_get_class_type(field) == | |
2101 | BT_FIELD_CLASS_TYPE_REAL); | |
2102 | bt_field_real_set_value(field, value); | |
e98a2d6e | 2103 | stack_top(notit->stack)->index++; |
41693723 PP |
2104 | |
2105 | end: | |
e98a2d6e PP |
2106 | return status; |
2107 | } | |
2108 | ||
2109 | static | |
5cd6d0e5 PP |
2110 | enum bt_bfcr_status bfcr_string_begin_cb( |
2111 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2112 | { |
b19ff26f | 2113 | bt_field *field = NULL; |
d6e69534 | 2114 | struct bt_msg_iter *notit = data; |
e98a2d6e PP |
2115 | int ret; |
2116 | ||
5cd6d0e5 PP |
2117 | BT_LOGV("String (beginning) function called from BFCR: " |
2118 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2119 | "fc-type=%d, fc-in-ir=%d", |
2120 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
e98a2d6e | 2121 | |
91d81473 | 2122 | if (G_UNLIKELY(!fc->in_ir)) { |
41693723 PP |
2123 | goto end; |
2124 | } | |
2125 | ||
44c440bc PP |
2126 | field = borrow_next_field(notit); |
2127 | BT_ASSERT(field); | |
40f4ba76 PP |
2128 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
2129 | BT_ASSERT(bt_field_get_class_type(field) == | |
2130 | BT_FIELD_CLASS_TYPE_STRING); | |
2131 | ret = bt_field_string_clear(field); | |
312c056a PP |
2132 | BT_ASSERT(ret == 0); |
2133 | ||
e98a2d6e | 2134 | /* |
5cd6d0e5 PP |
2135 | * Push on stack. Not a compound class per se, but we know that |
2136 | * only bfcr_string_cb() may be called between this call and a | |
2137 | * subsequent call to bfcr_string_end_cb(). | |
e98a2d6e | 2138 | */ |
44c440bc | 2139 | stack_push(notit->stack, field); |
41693723 PP |
2140 | |
2141 | end: | |
5cd6d0e5 | 2142 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2143 | } |
2144 | ||
2145 | static | |
5cd6d0e5 PP |
2146 | enum bt_bfcr_status bfcr_string_cb(const char *value, |
2147 | size_t len, struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2148 | { |
5cd6d0e5 | 2149 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2150 | bt_field *field = NULL; |
d6e69534 | 2151 | struct bt_msg_iter *notit = data; |
e98a2d6e PP |
2152 | int ret; |
2153 | ||
5cd6d0e5 PP |
2154 | BT_LOGV("String (substring) function called from BFCR: " |
2155 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2156 | "fc-type=%d, fc-in-ir=%d, string-length=%zu", |
2157 | notit, notit->bfcr, fc, fc->type, fc->in_ir, | |
fdf0e7a0 | 2158 | len); |
41693723 | 2159 | |
91d81473 | 2160 | if (G_UNLIKELY(!fc->in_ir)) { |
41693723 PP |
2161 | goto end; |
2162 | } | |
2163 | ||
e98a2d6e | 2164 | field = stack_top(notit->stack)->base; |
f6ccaed9 | 2165 | BT_ASSERT(field); |
e98a2d6e | 2166 | |
312c056a | 2167 | /* Append current substring */ |
40f4ba76 | 2168 | ret = bt_field_string_append_with_length(field, value, len); |
e98a2d6e | 2169 | if (ret) { |
fdf0e7a0 PP |
2170 | BT_LOGE("Cannot append substring to string field's value: " |
2171 | "notit-addr=%p, field-addr=%p, string-length=%zu, " | |
2172 | "ret=%d", notit, field, len, ret); | |
5cd6d0e5 | 2173 | status = BT_BFCR_STATUS_ERROR; |
e98a2d6e PP |
2174 | goto end; |
2175 | } | |
2176 | ||
2177 | end: | |
2178 | return status; | |
2179 | } | |
2180 | ||
2181 | static | |
5cd6d0e5 PP |
2182 | enum bt_bfcr_status bfcr_string_end_cb( |
2183 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2184 | { |
d6e69534 | 2185 | struct bt_msg_iter *notit = data; |
e98a2d6e | 2186 | |
5cd6d0e5 PP |
2187 | BT_LOGV("String (end) function called from BFCR: " |
2188 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2189 | "fc-type=%d, fc-in-ir=%d", |
2190 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
41693723 | 2191 | |
91d81473 | 2192 | if (G_UNLIKELY(!fc->in_ir)) { |
41693723 PP |
2193 | goto end; |
2194 | } | |
fdf0e7a0 | 2195 | |
e98a2d6e PP |
2196 | /* Pop string field */ |
2197 | stack_pop(notit->stack); | |
2198 | ||
2199 | /* Go to next field */ | |
2200 | stack_top(notit->stack)->index++; | |
41693723 PP |
2201 | |
2202 | end: | |
5cd6d0e5 | 2203 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2204 | } |
2205 | ||
5cd6d0e5 PP |
2206 | enum bt_bfcr_status bfcr_compound_begin_cb( |
2207 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2208 | { |
d6e69534 | 2209 | struct bt_msg_iter *notit = data; |
b19ff26f | 2210 | bt_field *field; |
e98a2d6e | 2211 | |
5cd6d0e5 PP |
2212 | BT_LOGV("Compound (beginning) function called from BFCR: " |
2213 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2214 | "fc-type=%d, fc-in-ir=%d", |
2215 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
44c440bc | 2216 | |
5cd6d0e5 | 2217 | if (!fc->in_ir) { |
44c440bc PP |
2218 | goto end; |
2219 | } | |
fdf0e7a0 | 2220 | |
312c056a | 2221 | /* Borrow field */ |
e98a2d6e | 2222 | if (stack_empty(notit->stack)) { |
312c056a PP |
2223 | /* Root: already set by read_dscope_begin_state() */ |
2224 | field = notit->cur_dscope_field; | |
e98a2d6e | 2225 | } else { |
312c056a | 2226 | field = borrow_next_field(notit); |
44c440bc | 2227 | BT_ASSERT(field); |
e98a2d6e PP |
2228 | } |
2229 | ||
2230 | /* Push field */ | |
f6ccaed9 | 2231 | BT_ASSERT(field); |
40f4ba76 | 2232 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
44c440bc PP |
2233 | stack_push(notit->stack, field); |
2234 | ||
2235 | /* | |
5cd6d0e5 | 2236 | * Change BFCR "unsigned int" callback if it's a text |
44c440bc PP |
2237 | * array/sequence. |
2238 | */ | |
864cad70 PP |
2239 | if (fc->type == CTF_FIELD_CLASS_TYPE_ARRAY || |
2240 | fc->type == CTF_FIELD_CLASS_TYPE_SEQUENCE) { | |
5cd6d0e5 | 2241 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
44c440bc | 2242 | |
5cd6d0e5 | 2243 | if (array_fc->is_text) { |
44c440bc PP |
2244 | int ret; |
2245 | ||
40f4ba76 PP |
2246 | BT_ASSERT(bt_field_get_class_type(field) == |
2247 | BT_FIELD_CLASS_TYPE_STRING); | |
44c440bc | 2248 | notit->done_filling_string = false; |
40f4ba76 | 2249 | ret = bt_field_string_clear(field); |
44c440bc | 2250 | BT_ASSERT(ret == 0); |
5cd6d0e5 PP |
2251 | bt_bfcr_set_unsigned_int_cb(notit->bfcr, |
2252 | bfcr_unsigned_int_char_cb); | |
44c440bc | 2253 | } |
e98a2d6e PP |
2254 | } |
2255 | ||
2256 | end: | |
5cd6d0e5 | 2257 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2258 | } |
2259 | ||
5cd6d0e5 PP |
2260 | enum bt_bfcr_status bfcr_compound_end_cb( |
2261 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2262 | { |
d6e69534 | 2263 | struct bt_msg_iter *notit = data; |
e98a2d6e | 2264 | |
5cd6d0e5 PP |
2265 | BT_LOGV("Compound (end) function called from BFCR: " |
2266 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2267 | "fc-type=%d, fc-in-ir=%d", |
2268 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
e98a2d6e | 2269 | |
5cd6d0e5 | 2270 | if (!fc->in_ir) { |
e98a2d6e PP |
2271 | goto end; |
2272 | } | |
2273 | ||
44c440bc | 2274 | BT_ASSERT(!stack_empty(notit->stack)); |
40f4ba76 | 2275 | BT_ASSERT(bt_field_borrow_class_const(stack_top(notit->stack)->base) == |
5cd6d0e5 | 2276 | fc->ir_fc); |
e98a2d6e | 2277 | |
44c440bc | 2278 | /* |
5cd6d0e5 | 2279 | * Reset BFCR "unsigned int" callback if it's a text |
44c440bc PP |
2280 | * array/sequence. |
2281 | */ | |
864cad70 PP |
2282 | if (fc->type == CTF_FIELD_CLASS_TYPE_ARRAY || |
2283 | fc->type == CTF_FIELD_CLASS_TYPE_SEQUENCE) { | |
5cd6d0e5 | 2284 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
44c440bc | 2285 | |
5cd6d0e5 | 2286 | if (array_fc->is_text) { |
864cad70 | 2287 | BT_ASSERT(bt_field_get_class_type( |
40f4ba76 | 2288 | stack_top(notit->stack)->base) == |
e5be10ef | 2289 | BT_FIELD_CLASS_TYPE_STRING); |
5cd6d0e5 PP |
2290 | bt_bfcr_set_unsigned_int_cb(notit->bfcr, |
2291 | bfcr_unsigned_int_cb); | |
e98a2d6e | 2292 | } |
44c440bc | 2293 | } |
e98a2d6e | 2294 | |
44c440bc PP |
2295 | /* Pop stack */ |
2296 | stack_pop(notit->stack); | |
e98a2d6e | 2297 | |
44c440bc PP |
2298 | /* If the stack is not empty, increment the base's index */ |
2299 | if (!stack_empty(notit->stack)) { | |
2300 | stack_top(notit->stack)->index++; | |
e98a2d6e PP |
2301 | } |
2302 | ||
2303 | end: | |
5cd6d0e5 | 2304 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2305 | } |
2306 | ||
2307 | static | |
5cd6d0e5 | 2308 | int64_t bfcr_get_sequence_length_cb(struct ctf_field_class *fc, void *data) |
e98a2d6e | 2309 | { |
b19ff26f | 2310 | bt_field *seq_field; |
d6e69534 | 2311 | struct bt_msg_iter *notit = data; |
5cd6d0e5 | 2312 | struct ctf_field_class_sequence *seq_fc = (void *) fc; |
44c440bc PP |
2313 | int64_t length = -1; |
2314 | int ret; | |
e98a2d6e | 2315 | |
44c440bc | 2316 | length = (uint64_t) g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 2317 | seq_fc->stored_length_index); |
fdf0e7a0 | 2318 | seq_field = stack_top(notit->stack)->base; |
44c440bc | 2319 | BT_ASSERT(seq_field); |
785a6bba PP |
2320 | |
2321 | /* | |
2322 | * bfcr_get_sequence_length_cb() also gets called back for a | |
2323 | * text sequence, but the destination field is a string field. | |
2324 | * Only set the field's sequence length if the destination field | |
2325 | * is a sequence field. | |
2326 | */ | |
2327 | if (!seq_fc->base.is_text) { | |
2328 | BT_ASSERT(bt_field_get_class_type(seq_field) == | |
2329 | BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY); | |
2330 | ret = bt_field_dynamic_array_set_length(seq_field, | |
2331 | (uint64_t) length); | |
2332 | if (ret) { | |
2333 | BT_LOGE("Cannot set dynamic array field's length field: " | |
2334 | "notit-addr=%p, field-addr=%p, " | |
2335 | "length=%" PRIu64, notit, seq_field, length); | |
2336 | } | |
2cf1d51e | 2337 | } |
fdf0e7a0 | 2338 | |
44c440bc | 2339 | return length; |
e98a2d6e PP |
2340 | } |
2341 | ||
2342 | static | |
5cd6d0e5 PP |
2343 | struct ctf_field_class *bfcr_borrow_variant_selected_field_class_cb( |
2344 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2345 | { |
312c056a | 2346 | int ret; |
44c440bc PP |
2347 | uint64_t i; |
2348 | int64_t option_index = -1; | |
d6e69534 | 2349 | struct bt_msg_iter *notit = data; |
5cd6d0e5 PP |
2350 | struct ctf_field_class_variant *var_fc = (void *) fc; |
2351 | struct ctf_named_field_class *selected_option = NULL; | |
2352 | struct ctf_field_class *ret_fc = NULL; | |
44c440bc PP |
2353 | union { |
2354 | uint64_t u; | |
2355 | int64_t i; | |
2356 | } tag; | |
2357 | ||
2358 | /* Get variant's tag */ | |
2359 | tag.u = g_array_index(notit->stored_values, uint64_t, | |
5cd6d0e5 | 2360 | var_fc->stored_tag_index); |
e98a2d6e PP |
2361 | |
2362 | /* | |
44c440bc | 2363 | * Check each range to find the selected option's index. |
e98a2d6e | 2364 | */ |
5cd6d0e5 PP |
2365 | if (var_fc->tag_fc->base.is_signed) { |
2366 | for (i = 0; i < var_fc->ranges->len; i++) { | |
2367 | struct ctf_field_class_variant_range *range = | |
2368 | ctf_field_class_variant_borrow_range_by_index( | |
2369 | var_fc, i); | |
44c440bc PP |
2370 | |
2371 | if (tag.i >= range->range.lower.i && | |
2372 | tag.i <= range->range.upper.i) { | |
2373 | option_index = (int64_t) range->option_index; | |
2374 | break; | |
2375 | } | |
2376 | } | |
312c056a | 2377 | } else { |
5cd6d0e5 PP |
2378 | for (i = 0; i < var_fc->ranges->len; i++) { |
2379 | struct ctf_field_class_variant_range *range = | |
2380 | ctf_field_class_variant_borrow_range_by_index( | |
2381 | var_fc, i); | |
44c440bc PP |
2382 | |
2383 | if (tag.u >= range->range.lower.u && | |
2384 | tag.u <= range->range.upper.u) { | |
2385 | option_index = (int64_t) range->option_index; | |
2386 | break; | |
2387 | } | |
2388 | } | |
312c056a PP |
2389 | } |
2390 | ||
44c440bc | 2391 | if (option_index < 0) { |
5cd6d0e5 PP |
2392 | BT_LOGW("Cannot find variant field class's option: " |
2393 | "notit-addr=%p, var-fc-addr=%p, u-tag=%" PRIu64 ", " | |
2394 | "i-tag=%" PRId64, notit, var_fc, tag.u, tag.i); | |
e98a2d6e PP |
2395 | goto end; |
2396 | } | |
2397 | ||
5cd6d0e5 PP |
2398 | selected_option = ctf_field_class_variant_borrow_option_by_index( |
2399 | var_fc, (uint64_t) option_index); | |
e98a2d6e | 2400 | |
5cd6d0e5 | 2401 | if (selected_option->fc->in_ir) { |
b19ff26f | 2402 | bt_field *var_field = stack_top(notit->stack)->base; |
1556a1af | 2403 | |
40f4ba76 | 2404 | ret = bt_field_variant_select_option_field( |
e5be10ef | 2405 | var_field, option_index); |
e22b45d0 | 2406 | if (ret) { |
44c440bc PP |
2407 | BT_LOGW("Cannot select variant field's option field: " |
2408 | "notit-addr=%p, var-field-addr=%p, " | |
2409 | "opt-index=%" PRId64, notit, var_field, | |
2410 | option_index); | |
1556a1af JG |
2411 | goto end; |
2412 | } | |
af87daef PP |
2413 | } |
2414 | ||
5cd6d0e5 | 2415 | ret_fc = selected_option->fc; |
e22b45d0 | 2416 | |
af87daef | 2417 | end: |
5cd6d0e5 | 2418 | return ret_fc; |
44c440bc PP |
2419 | } |
2420 | ||
f42867e2 | 2421 | static |
fc917f65 | 2422 | void create_msg_stream_beginning(struct bt_msg_iter *notit, |
d6e69534 | 2423 | bt_message **message) |
f42867e2 | 2424 | { |
d6e69534 | 2425 | bt_message *ret = NULL; |
f42867e2 | 2426 | |
f42867e2 | 2427 | BT_ASSERT(notit->stream); |
d6e69534 PP |
2428 | BT_ASSERT(notit->msg_iter); |
2429 | ret = bt_message_stream_beginning_create(notit->msg_iter, | |
f0010051 | 2430 | notit->stream); |
f42867e2 | 2431 | if (!ret) { |
d6e69534 | 2432 | BT_LOGE("Cannot create stream beginning message: " |
f42867e2 PP |
2433 | "notit-addr=%p, stream-addr=%p", |
2434 | notit, notit->stream); | |
2435 | return; | |
2436 | } | |
2437 | ||
d6e69534 | 2438 | *message = ret; |
f42867e2 PP |
2439 | } |
2440 | ||
2441 | static | |
fc917f65 PP |
2442 | void create_msg_stream_activity_beginning(struct bt_msg_iter *notit, |
2443 | bt_message **message) | |
2444 | { | |
2445 | bt_message *ret = NULL; | |
2446 | ||
2447 | BT_ASSERT(notit->stream); | |
2448 | BT_ASSERT(notit->msg_iter); | |
2449 | ret = bt_message_stream_activity_beginning_create(notit->msg_iter, | |
2450 | notit->stream); | |
2451 | if (!ret) { | |
2452 | BT_LOGE("Cannot create stream activity beginning message: " | |
2453 | "notit-addr=%p, stream-addr=%p", | |
2454 | notit, notit->stream); | |
2455 | return; | |
2456 | } | |
2457 | ||
2458 | *message = ret; | |
2459 | } | |
2460 | ||
2461 | static | |
2462 | void create_msg_stream_activity_end(struct bt_msg_iter *notit, | |
d6e69534 | 2463 | bt_message **message) |
fc917f65 PP |
2464 | { |
2465 | bt_message *ret = NULL; | |
2466 | ||
2467 | if (!notit->stream) { | |
2468 | BT_LOGE("Cannot create stream for stream message: " | |
2469 | "notit-addr=%p", notit); | |
2470 | return; | |
2471 | } | |
2472 | ||
2473 | BT_ASSERT(notit->stream); | |
2474 | BT_ASSERT(notit->msg_iter); | |
2475 | ret = bt_message_stream_activity_end_create(notit->msg_iter, | |
2476 | notit->stream); | |
2477 | if (!ret) { | |
2478 | BT_LOGE("Cannot create stream activity end message: " | |
2479 | "notit-addr=%p, stream-addr=%p", | |
2480 | notit, notit->stream); | |
2481 | return; | |
2482 | } | |
2483 | ||
2484 | *message = ret; | |
2485 | } | |
2486 | ||
2487 | static | |
2488 | void create_msg_stream_end(struct bt_msg_iter *notit, bt_message **message) | |
f42867e2 | 2489 | { |
d6e69534 | 2490 | bt_message *ret; |
f42867e2 PP |
2491 | |
2492 | if (!notit->stream) { | |
d6e69534 | 2493 | BT_LOGE("Cannot create stream for stream message: " |
f42867e2 PP |
2494 | "notit-addr=%p", notit); |
2495 | return; | |
2496 | } | |
2497 | ||
d6e69534 PP |
2498 | BT_ASSERT(notit->msg_iter); |
2499 | ret = bt_message_stream_end_create(notit->msg_iter, | |
f0010051 | 2500 | notit->stream); |
f42867e2 | 2501 | if (!ret) { |
fc917f65 | 2502 | BT_LOGE("Cannot create stream end message: " |
f42867e2 PP |
2503 | "notit-addr=%p, stream-addr=%p", |
2504 | notit, notit->stream); | |
2505 | return; | |
2506 | } | |
fc917f65 | 2507 | |
d6e69534 | 2508 | *message = ret; |
f42867e2 PP |
2509 | } |
2510 | ||
78586d8a | 2511 | static |
fc917f65 | 2512 | void create_msg_packet_beginning(struct bt_msg_iter *notit, |
d6e69534 | 2513 | bt_message **message) |
e98a2d6e | 2514 | { |
312c056a | 2515 | int ret; |
d6e69534 PP |
2516 | enum bt_msg_iter_status status; |
2517 | bt_message *msg = NULL; | |
b19ff26f | 2518 | const bt_stream_class *sc; |
e98a2d6e | 2519 | |
312c056a | 2520 | status = set_current_packet(notit); |
d6e69534 | 2521 | if (status != BT_MSG_ITER_STATUS_OK) { |
312c056a | 2522 | goto end; |
e98a2d6e PP |
2523 | } |
2524 | ||
312c056a | 2525 | BT_ASSERT(notit->packet); |
40f4ba76 | 2526 | sc = notit->meta.sc->ir_sc; |
44c440bc PP |
2527 | BT_ASSERT(sc); |
2528 | ||
312c056a | 2529 | if (notit->packet_context_field) { |
40f4ba76 | 2530 | ret = bt_packet_move_context_field( |
e5be10ef | 2531 | notit->packet, notit->packet_context_field); |
312c056a PP |
2532 | if (ret) { |
2533 | goto end; | |
2534 | } | |
2535 | ||
2536 | notit->packet_context_field = NULL; | |
2537 | ||
2538 | /* | |
83ebb7f1 PP |
2539 | * At this point notit->dscopes.stream_packet_context |
2540 | * has the same value as the packet context field within | |
312c056a PP |
2541 | * notit->packet. |
2542 | */ | |
40f4ba76 | 2543 | BT_ASSERT(bt_packet_borrow_context_field( |
e5be10ef | 2544 | notit->packet) == |
312c056a PP |
2545 | notit->dscopes.stream_packet_context); |
2546 | } | |
2547 | ||
d6e69534 | 2548 | BT_ASSERT(notit->msg_iter); |
a6d85d2f | 2549 | |
afd45274 PP |
2550 | if (notit->meta.sc->packets_have_ts_begin) { |
2551 | BT_ASSERT(notit->snapshots.beginning_clock != UINT64_C(-1)); | |
a33f7c34 | 2552 | msg = bt_message_packet_beginning_create_with_default_clock_snapshot( |
afd45274 PP |
2553 | notit->msg_iter, notit->packet, |
2554 | notit->snapshots.beginning_clock); | |
a33f7c34 | 2555 | } else { |
a6d85d2f PP |
2556 | msg = bt_message_packet_beginning_create(notit->msg_iter, |
2557 | notit->packet); | |
a6d85d2f PP |
2558 | } |
2559 | ||
d6e69534 PP |
2560 | if (!msg) { |
2561 | BT_LOGE("Cannot create packet beginning message: " | |
fdf0e7a0 PP |
2562 | "notit-addr=%p, packet-addr=%p", |
2563 | notit, notit->packet); | |
e22b45d0 | 2564 | goto end; |
78586d8a | 2565 | } |
312c056a | 2566 | |
d6e69534 | 2567 | *message = msg; |
e22b45d0 PP |
2568 | |
2569 | end: | |
2570 | return; | |
e98a2d6e PP |
2571 | } |
2572 | ||
78586d8a | 2573 | static |
fc917f65 | 2574 | void create_msg_packet_end(struct bt_msg_iter *notit, bt_message **message) |
e98a2d6e | 2575 | { |
d6e69534 | 2576 | bt_message *msg; |
e98a2d6e | 2577 | |
e98a2d6e | 2578 | if (!notit->packet) { |
78586d8a | 2579 | return; |
e98a2d6e PP |
2580 | } |
2581 | ||
44c440bc PP |
2582 | /* Update default clock from packet's end time */ |
2583 | if (notit->snapshots.end_clock != UINT64_C(-1)) { | |
605e1019 | 2584 | notit->default_clock_snapshot = notit->snapshots.end_clock; |
44c440bc PP |
2585 | } |
2586 | ||
d6e69534 | 2587 | BT_ASSERT(notit->msg_iter); |
a6d85d2f | 2588 | |
afd45274 | 2589 | if (notit->meta.sc->packets_have_ts_end) { |
a33f7c34 | 2590 | BT_ASSERT(notit->snapshots.end_clock != UINT64_C(-1)); |
a6d85d2f PP |
2591 | msg = bt_message_packet_end_create_with_default_clock_snapshot( |
2592 | notit->msg_iter, notit->packet, | |
2593 | notit->snapshots.end_clock); | |
a33f7c34 PP |
2594 | } else { |
2595 | msg = bt_message_packet_end_create(notit->msg_iter, | |
2596 | notit->packet); | |
a6d85d2f PP |
2597 | } |
2598 | ||
d6e69534 PP |
2599 | if (!msg) { |
2600 | BT_LOGE("Cannot create packet end message: " | |
fdf0e7a0 PP |
2601 | "notit-addr=%p, packet-addr=%p", |
2602 | notit, notit->packet); | |
78586d8a | 2603 | return; |
ccf82993 | 2604 | |
78586d8a | 2605 | } |
e98a2d6e | 2606 | |
c5b9b441 | 2607 | BT_PACKET_PUT_REF_AND_RESET(notit->packet); |
d6e69534 | 2608 | *message = msg; |
e98a2d6e PP |
2609 | } |
2610 | ||
495490c5 PP |
2611 | static |
2612 | void create_msg_discarded_events(struct bt_msg_iter *notit, | |
2613 | bt_message **message) | |
2614 | { | |
2615 | bt_message *msg; | |
2616 | uint64_t beginning_raw_value = UINT64_C(-1); | |
2617 | uint64_t end_raw_value = UINT64_C(-1); | |
495490c5 PP |
2618 | |
2619 | BT_ASSERT(notit->msg_iter); | |
2620 | BT_ASSERT(notit->stream); | |
afd45274 | 2621 | BT_ASSERT(notit->meta.sc->has_discarded_events); |
495490c5 | 2622 | |
afd45274 PP |
2623 | if (notit->meta.sc->discarded_events_have_default_cs) { |
2624 | if (notit->prev_packet_snapshots.discarded_events == UINT64_C(-1)) { | |
2625 | /* | |
2626 | * We discarded events, but before (and possibly | |
2627 | * including) the current packet: use this packet's time | |
2628 | * range, and do not have a specific count. | |
2629 | */ | |
2630 | beginning_raw_value = notit->snapshots.beginning_clock; | |
2631 | end_raw_value = notit->snapshots.end_clock; | |
2632 | } else { | |
2633 | beginning_raw_value = notit->prev_packet_snapshots.end_clock; | |
2634 | end_raw_value = notit->snapshots.end_clock; | |
2635 | } | |
495490c5 | 2636 | |
afd45274 PP |
2637 | BT_ASSERT(beginning_raw_value != UINT64_C(-1)); |
2638 | BT_ASSERT(end_raw_value != UINT64_C(-1)); | |
495490c5 PP |
2639 | msg = bt_message_discarded_events_create_with_default_clock_snapshots( |
2640 | notit->msg_iter, notit->stream, beginning_raw_value, | |
2641 | end_raw_value); | |
2642 | } else { | |
2643 | msg = bt_message_discarded_events_create(notit->msg_iter, | |
2644 | notit->stream); | |
2645 | } | |
2646 | ||
2647 | if (!msg) { | |
2648 | BT_LOGE("Cannot create discarded events message: " | |
2649 | "notit-addr=%p, stream-addr=%p", | |
2650 | notit, notit->stream); | |
2651 | return; | |
2652 | } | |
2653 | ||
afd45274 PP |
2654 | if (notit->prev_packet_snapshots.discarded_events != UINT64_C(-1)) { |
2655 | bt_message_discarded_events_set_count(msg, | |
2656 | notit->snapshots.discarded_events - | |
2657 | notit->prev_packet_snapshots.discarded_events); | |
495490c5 PP |
2658 | } |
2659 | ||
2660 | *message = msg; | |
2661 | } | |
2662 | ||
2663 | static | |
2664 | void create_msg_discarded_packets(struct bt_msg_iter *notit, | |
2665 | bt_message **message) | |
2666 | { | |
2667 | bt_message *msg; | |
2668 | ||
2669 | BT_ASSERT(notit->msg_iter); | |
2670 | BT_ASSERT(notit->stream); | |
afd45274 | 2671 | BT_ASSERT(notit->meta.sc->has_discarded_packets); |
495490c5 PP |
2672 | BT_ASSERT(notit->prev_packet_snapshots.packets != |
2673 | UINT64_C(-1)); | |
2674 | ||
afd45274 PP |
2675 | if (notit->meta.sc->discarded_packets_have_default_cs) { |
2676 | BT_ASSERT(notit->prev_packet_snapshots.end_clock != UINT64_C(-1)); | |
2677 | BT_ASSERT(notit->snapshots.beginning_clock != UINT64_C(-1)); | |
495490c5 PP |
2678 | msg = bt_message_discarded_packets_create_with_default_clock_snapshots( |
2679 | notit->msg_iter, notit->stream, | |
2680 | notit->prev_packet_snapshots.end_clock, | |
2681 | notit->snapshots.beginning_clock); | |
2682 | } else { | |
2683 | msg = bt_message_discarded_packets_create(notit->msg_iter, | |
2684 | notit->stream); | |
2685 | } | |
2686 | ||
2687 | if (!msg) { | |
2688 | BT_LOGE("Cannot create discarded packets message: " | |
2689 | "notit-addr=%p, stream-addr=%p", | |
2690 | notit, notit->stream); | |
2691 | return; | |
2692 | } | |
2693 | ||
2694 | bt_message_discarded_packets_set_count(msg, | |
2695 | notit->snapshots.packets - | |
2696 | notit->prev_packet_snapshots.packets - 1); | |
2697 | *message = msg; | |
2698 | } | |
2699 | ||
c44c3e70 | 2700 | BT_HIDDEN |
d6e69534 | 2701 | struct bt_msg_iter *bt_msg_iter_create(struct ctf_trace_class *tc, |
e98a2d6e | 2702 | size_t max_request_sz, |
ea14c7dd PP |
2703 | struct bt_msg_iter_medium_ops medops, void *data, |
2704 | bt_logging_level log_level) | |
e98a2d6e | 2705 | { |
d6e69534 | 2706 | struct bt_msg_iter *notit = NULL; |
5cd6d0e5 PP |
2707 | struct bt_bfcr_cbs cbs = { |
2708 | .classes = { | |
2709 | .signed_int = bfcr_signed_int_cb, | |
2710 | .unsigned_int = bfcr_unsigned_int_cb, | |
2711 | .floating_point = bfcr_floating_point_cb, | |
2712 | .string_begin = bfcr_string_begin_cb, | |
2713 | .string = bfcr_string_cb, | |
2714 | .string_end = bfcr_string_end_cb, | |
2715 | .compound_begin = bfcr_compound_begin_cb, | |
2716 | .compound_end = bfcr_compound_end_cb, | |
e98a2d6e PP |
2717 | }, |
2718 | .query = { | |
5cd6d0e5 PP |
2719 | .get_sequence_length = bfcr_get_sequence_length_cb, |
2720 | .borrow_variant_selected_field_class = bfcr_borrow_variant_selected_field_class_cb, | |
e98a2d6e PP |
2721 | }, |
2722 | }; | |
2723 | ||
44c440bc | 2724 | BT_ASSERT(tc); |
f6ccaed9 | 2725 | BT_ASSERT(medops.request_bytes); |
312c056a | 2726 | BT_ASSERT(medops.borrow_stream); |
ea14c7dd PP |
2727 | BT_LOG_WRITE_CUR_LVL(BT_LOG_DEBUG, log_level, BT_LOG_TAG, |
2728 | "Creating CTF plugin message iterator: " | |
862ca4ed | 2729 | "trace-addr=%p, max-request-size=%zu, " |
ea14c7dd PP |
2730 | "data=%p, log-level=%s", tc, max_request_sz, data, |
2731 | bt_common_logging_level_string(log_level)); | |
d6e69534 | 2732 | notit = g_new0(struct bt_msg_iter, 1); |
e98a2d6e | 2733 | if (!notit) { |
ea14c7dd PP |
2734 | BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG, |
2735 | "Failed to allocate one CTF plugin message iterator."); | |
e98a2d6e PP |
2736 | goto end; |
2737 | } | |
ea14c7dd | 2738 | notit->log_level = log_level; |
44c440bc | 2739 | notit->meta.tc = tc; |
e98a2d6e PP |
2740 | notit->medium.medops = medops; |
2741 | notit->medium.max_request_sz = max_request_sz; | |
2742 | notit->medium.data = data; | |
e98a2d6e | 2743 | notit->stack = stack_new(notit); |
44c440bc PP |
2744 | notit->stored_values = g_array_new(FALSE, TRUE, sizeof(uint64_t)); |
2745 | g_array_set_size(notit->stored_values, tc->stored_value_count); | |
2746 | ||
e98a2d6e | 2747 | if (!notit->stack) { |
fdf0e7a0 | 2748 | BT_LOGE_STR("Failed to create field stack."); |
c44c3e70 | 2749 | goto error; |
e98a2d6e PP |
2750 | } |
2751 | ||
ea14c7dd | 2752 | notit->bfcr = bt_bfcr_create(cbs, notit, log_level); |
5cd6d0e5 PP |
2753 | if (!notit->bfcr) { |
2754 | BT_LOGE_STR("Failed to create binary class reader (BFCR)."); | |
c44c3e70 | 2755 | goto error; |
e98a2d6e PP |
2756 | } |
2757 | ||
d6e69534 PP |
2758 | bt_msg_iter_reset(notit); |
2759 | BT_LOGD("Created CTF plugin message iterator: " | |
862ca4ed | 2760 | "trace-addr=%p, max-request-size=%zu, " |
ea14c7dd PP |
2761 | "data=%p, notit-addr=%p, log-level=%s", |
2762 | tc, max_request_sz, data, notit, | |
2763 | bt_common_logging_level_string(log_level)); | |
9e0c8dbb | 2764 | notit->cur_packet_offset = 0; |
fdf0e7a0 | 2765 | |
e98a2d6e PP |
2766 | end: |
2767 | return notit; | |
fdf0e7a0 | 2768 | |
c44c3e70 | 2769 | error: |
d6e69534 | 2770 | bt_msg_iter_destroy(notit); |
c44c3e70 JG |
2771 | notit = NULL; |
2772 | goto end; | |
e98a2d6e PP |
2773 | } |
2774 | ||
d6e69534 | 2775 | void bt_msg_iter_destroy(struct bt_msg_iter *notit) |
e98a2d6e | 2776 | { |
c5b9b441 PP |
2777 | BT_PACKET_PUT_REF_AND_RESET(notit->packet); |
2778 | BT_STREAM_PUT_REF_AND_RESET(notit->stream); | |
312c056a | 2779 | release_all_dscopes(notit); |
e98a2d6e | 2780 | |
d6e69534 | 2781 | BT_LOGD("Destroying CTF plugin message iterator: addr=%p", notit); |
fdf0e7a0 | 2782 | |
e98a2d6e | 2783 | if (notit->stack) { |
fdf0e7a0 | 2784 | BT_LOGD_STR("Destroying field stack."); |
e98a2d6e PP |
2785 | stack_destroy(notit->stack); |
2786 | } | |
2787 | ||
5cd6d0e5 PP |
2788 | if (notit->bfcr) { |
2789 | BT_LOGD("Destroying BFCR: bfcr-addr=%p", notit->bfcr); | |
2790 | bt_bfcr_destroy(notit->bfcr); | |
e98a2d6e PP |
2791 | } |
2792 | ||
44c440bc PP |
2793 | if (notit->stored_values) { |
2794 | g_array_free(notit->stored_values, TRUE); | |
5f870343 | 2795 | } |
fdf0e7a0 | 2796 | |
e98a2d6e PP |
2797 | g_free(notit); |
2798 | } | |
2799 | ||
d6e69534 PP |
2800 | enum bt_msg_iter_status bt_msg_iter_get_next_message( |
2801 | struct bt_msg_iter *notit, | |
fc917f65 | 2802 | bt_self_message_iterator *msg_iter, bt_message **message) |
e98a2d6e | 2803 | { |
d6e69534 | 2804 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e | 2805 | |
f6ccaed9 | 2806 | BT_ASSERT(notit); |
d6e69534 | 2807 | BT_ASSERT(message); |
d6e69534 | 2808 | notit->msg_iter = msg_iter; |
495490c5 | 2809 | notit->set_stream = true; |
3f7d4d90 | 2810 | BT_LOGD("Getting next message: notit-addr=%p", notit); |
fdf0e7a0 | 2811 | |
e98a2d6e PP |
2812 | while (true) { |
2813 | status = handle_state(notit); | |
91d81473 | 2814 | if (G_UNLIKELY(status == BT_MSG_ITER_STATUS_AGAIN)) { |
3f7d4d90 | 2815 | BT_LOGD_STR("Medium returned BT_MSG_ITER_STATUS_AGAIN."); |
7cdc2bab | 2816 | goto end; |
91d81473 | 2817 | } else if (G_UNLIKELY(status != BT_MSG_ITER_STATUS_OK)) { |
fc917f65 PP |
2818 | BT_LOGW("Cannot handle state: notit-addr=%p, state=%s", |
2819 | notit, state_string(notit->state)); | |
e98a2d6e PP |
2820 | goto end; |
2821 | } | |
2822 | ||
2823 | switch (notit->state) { | |
fc917f65 PP |
2824 | case STATE_EMIT_MSG_EVENT: |
2825 | BT_ASSERT(notit->event_msg); | |
fc917f65 PP |
2826 | *message = notit->event_msg; |
2827 | notit->event_msg = NULL; | |
495490c5 PP |
2828 | goto end; |
2829 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
2830 | /* create_msg_discared_events() logs errors */ | |
2831 | create_msg_discarded_events(notit, message); | |
2832 | ||
2833 | if (!*message) { | |
2834 | status = BT_MSG_ITER_STATUS_ERROR; | |
2835 | } | |
2836 | ||
2837 | goto end; | |
2838 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
2839 | /* create_msg_discared_packets() logs errors */ | |
2840 | create_msg_discarded_packets(notit, message); | |
2841 | ||
2842 | if (!*message) { | |
2843 | status = BT_MSG_ITER_STATUS_ERROR; | |
2844 | } | |
2845 | ||
fc917f65 PP |
2846 | goto end; |
2847 | case STATE_EMIT_MSG_PACKET_BEGINNING: | |
2848 | /* create_msg_packet_beginning() logs errors */ | |
2849 | create_msg_packet_beginning(notit, message); | |
44c440bc | 2850 | |
d6e69534 PP |
2851 | if (!*message) { |
2852 | status = BT_MSG_ITER_STATUS_ERROR; | |
f42867e2 | 2853 | } |
44c440bc | 2854 | |
f42867e2 | 2855 | goto end; |
fc917f65 PP |
2856 | case STATE_EMIT_MSG_PACKET_END_SINGLE: |
2857 | case STATE_EMIT_MSG_PACKET_END_MULTI: | |
2858 | /* create_msg_packet_end() logs errors */ | |
2859 | create_msg_packet_end(notit, message); | |
44c440bc | 2860 | |
d6e69534 PP |
2861 | if (!*message) { |
2862 | status = BT_MSG_ITER_STATUS_ERROR; | |
e98a2d6e | 2863 | } |
312c056a | 2864 | |
e98a2d6e | 2865 | goto end; |
fc917f65 | 2866 | case STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING: |
495490c5 PP |
2867 | /* create_msg_stream_activity_beginning() logs errors */ |
2868 | create_msg_stream_activity_beginning(notit, message); | |
fc917f65 | 2869 | |
495490c5 PP |
2870 | if (!*message) { |
2871 | status = BT_MSG_ITER_STATUS_ERROR; | |
e98a2d6e | 2872 | } |
312c056a | 2873 | |
495490c5 | 2874 | goto end; |
fc917f65 | 2875 | case STATE_EMIT_MSG_STREAM_ACTIVITY_END: |
495490c5 PP |
2876 | /* create_msg_stream_activity_end() logs errors */ |
2877 | create_msg_stream_activity_end(notit, message); | |
fc917f65 | 2878 | |
495490c5 PP |
2879 | if (!*message) { |
2880 | status = BT_MSG_ITER_STATUS_ERROR; | |
fc917f65 PP |
2881 | } |
2882 | ||
495490c5 | 2883 | goto end; |
fc917f65 | 2884 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
495490c5 PP |
2885 | /* create_msg_stream_beginning() logs errors */ |
2886 | create_msg_stream_beginning(notit, message); | |
fc917f65 | 2887 | |
495490c5 PP |
2888 | if (!*message) { |
2889 | status = BT_MSG_ITER_STATUS_ERROR; | |
fc917f65 PP |
2890 | } |
2891 | ||
495490c5 | 2892 | goto end; |
fc917f65 | 2893 | case STATE_EMIT_MSG_STREAM_END: |
495490c5 PP |
2894 | /* create_msg_stream_end() logs errors */ |
2895 | create_msg_stream_end(notit, message); | |
fc917f65 | 2896 | |
495490c5 PP |
2897 | if (!*message) { |
2898 | status = BT_MSG_ITER_STATUS_ERROR; | |
fc917f65 PP |
2899 | } |
2900 | ||
495490c5 | 2901 | goto end; |
fc917f65 PP |
2902 | case STATE_DONE: |
2903 | status = BT_MSG_ITER_STATUS_EOF; | |
e98a2d6e PP |
2904 | goto end; |
2905 | default: | |
2906 | /* Non-emitting state: continue */ | |
2907 | break; | |
2908 | } | |
2909 | } | |
2910 | ||
2911 | end: | |
2912 | return status; | |
2913 | } | |
87187cbf | 2914 | |
41693723 PP |
2915 | static |
2916 | enum bt_msg_iter_status read_packet_header_context_fields( | |
2917 | struct bt_msg_iter *notit) | |
87187cbf | 2918 | { |
9e0c8dbb | 2919 | int ret; |
d6e69534 | 2920 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
87187cbf | 2921 | |
f6ccaed9 | 2922 | BT_ASSERT(notit); |
495490c5 | 2923 | notit->set_stream = false; |
87187cbf | 2924 | |
fc917f65 | 2925 | if (notit->state == STATE_EMIT_MSG_PACKET_BEGINNING) { |
87187cbf | 2926 | /* We're already there */ |
41693723 | 2927 | goto end; |
87187cbf PP |
2928 | } |
2929 | ||
2930 | while (true) { | |
2931 | status = handle_state(notit); | |
91d81473 | 2932 | if (G_UNLIKELY(status == BT_MSG_ITER_STATUS_AGAIN)) { |
3f7d4d90 | 2933 | BT_LOGD_STR("Medium returned BT_MSG_ITER_STATUS_AGAIN."); |
87187cbf | 2934 | goto end; |
91d81473 | 2935 | } else if (G_UNLIKELY(status != BT_MSG_ITER_STATUS_OK)) { |
fc917f65 PP |
2936 | BT_LOGW("Cannot handle state: notit-addr=%p, state=%s", |
2937 | notit, state_string(notit->state)); | |
87187cbf PP |
2938 | goto end; |
2939 | } | |
2940 | ||
2941 | switch (notit->state) { | |
fc917f65 | 2942 | case STATE_EMIT_MSG_PACKET_BEGINNING: |
87187cbf PP |
2943 | /* |
2944 | * Packet header and context fields are | |
2945 | * potentially decoded (or they don't exist). | |
2946 | */ | |
41693723 | 2947 | goto end; |
87187cbf PP |
2948 | case STATE_INIT: |
2949 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
2950 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
2951 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
2952 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
2953 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
2954 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
495490c5 | 2955 | case STATE_CHECK_EMIT_MSG_STREAM_BEGINNING: |
fc917f65 PP |
2956 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
2957 | case STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING: | |
495490c5 PP |
2958 | case STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS: |
2959 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
2960 | case STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS: | |
2961 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
87187cbf PP |
2962 | /* Non-emitting state: continue */ |
2963 | break; | |
2964 | default: | |
2965 | /* | |
2966 | * We should never get past the | |
fc917f65 | 2967 | * STATE_EMIT_MSG_PACKET_BEGINNING state. |
87187cbf | 2968 | */ |
fdf0e7a0 PP |
2969 | BT_LOGF("Unexpected state: notit-addr=%p, state=%s", |
2970 | notit, state_string(notit->state)); | |
0fbb9a9f | 2971 | abort(); |
87187cbf PP |
2972 | } |
2973 | } | |
2974 | ||
41693723 | 2975 | end: |
312c056a PP |
2976 | ret = set_current_packet_content_sizes(notit); |
2977 | if (ret) { | |
d6e69534 | 2978 | status = BT_MSG_ITER_STATUS_ERROR; |
312c056a PP |
2979 | } |
2980 | ||
87187cbf PP |
2981 | return status; |
2982 | } | |
6de92955 PP |
2983 | |
2984 | BT_HIDDEN | |
d6e69534 | 2985 | void bt_msg_iter_set_medops_data(struct bt_msg_iter *notit, |
6de92955 PP |
2986 | void *medops_data) |
2987 | { | |
f6ccaed9 | 2988 | BT_ASSERT(notit); |
6de92955 PP |
2989 | notit->medium.data = medops_data; |
2990 | } | |
9e0c8dbb JG |
2991 | |
2992 | BT_HIDDEN | |
fc917f65 PP |
2993 | enum bt_msg_iter_status bt_msg_iter_seek(struct bt_msg_iter *notit, |
2994 | off_t offset) | |
9e0c8dbb | 2995 | { |
d6e69534 PP |
2996 | enum bt_msg_iter_status ret = BT_MSG_ITER_STATUS_OK; |
2997 | enum bt_msg_iter_medium_status medium_status; | |
9e0c8dbb | 2998 | |
f6ccaed9 | 2999 | BT_ASSERT(notit); |
9e0c8dbb JG |
3000 | if (offset < 0) { |
3001 | BT_LOGE("Cannot seek to negative offset: offset=%jd", offset); | |
d6e69534 | 3002 | ret = BT_MSG_ITER_STATUS_INVAL; |
9e0c8dbb JG |
3003 | goto end; |
3004 | } | |
3005 | ||
3006 | if (!notit->medium.medops.seek) { | |
d6e69534 | 3007 | ret = BT_MSG_ITER_STATUS_UNSUPPORTED; |
9e0c8dbb JG |
3008 | BT_LOGD("Aborting seek as the iterator's underlying media does not implement seek support."); |
3009 | goto end; | |
3010 | } | |
3011 | ||
3012 | medium_status = notit->medium.medops.seek( | |
d6e69534 PP |
3013 | BT_MSG_ITER_SEEK_WHENCE_SET, offset, notit->medium.data); |
3014 | if (medium_status != BT_MSG_ITER_MEDIUM_STATUS_OK) { | |
3015 | if (medium_status == BT_MSG_ITER_MEDIUM_STATUS_EOF) { | |
3016 | ret = BT_MSG_ITER_STATUS_EOF; | |
9e0c8dbb | 3017 | } else { |
d6e69534 | 3018 | ret = BT_MSG_ITER_STATUS_ERROR; |
9e0c8dbb JG |
3019 | goto end; |
3020 | } | |
3021 | } | |
3022 | ||
d6e69534 | 3023 | bt_msg_iter_reset(notit); |
9e0c8dbb | 3024 | notit->cur_packet_offset = offset; |
44c440bc | 3025 | |
9e0c8dbb JG |
3026 | end: |
3027 | return ret; | |
3028 | } | |
3029 | ||
44c440bc | 3030 | BT_HIDDEN |
d6e69534 PP |
3031 | enum bt_msg_iter_status bt_msg_iter_get_packet_properties( |
3032 | struct bt_msg_iter *notit, | |
3033 | struct bt_msg_iter_packet_properties *props) | |
44c440bc | 3034 | { |
41693723 PP |
3035 | enum bt_msg_iter_status status; |
3036 | ||
44c440bc PP |
3037 | BT_ASSERT(notit); |
3038 | BT_ASSERT(props); | |
41693723 PP |
3039 | status = read_packet_header_context_fields(notit); |
3040 | if (status != BT_MSG_ITER_STATUS_OK) { | |
3041 | goto end; | |
3042 | } | |
44c440bc | 3043 | |
fc917f65 PP |
3044 | props->exp_packet_total_size = notit->cur_exp_packet_total_size; |
3045 | props->exp_packet_content_size = notit->cur_exp_packet_content_size; | |
44c440bc PP |
3046 | props->stream_class_id = (uint64_t) notit->cur_stream_class_id; |
3047 | props->data_stream_id = notit->cur_data_stream_id; | |
3048 | props->snapshots.discarded_events = notit->snapshots.discarded_events; | |
3049 | props->snapshots.packets = notit->snapshots.packets; | |
3050 | props->snapshots.beginning_clock = notit->snapshots.beginning_clock; | |
3051 | props->snapshots.end_clock = notit->snapshots.end_clock; | |
41693723 PP |
3052 | |
3053 | end: | |
3054 | return status; | |
9e0c8dbb | 3055 | } |
fc917f65 PP |
3056 | |
3057 | BT_HIDDEN | |
3058 | void bt_msg_iter_set_emit_stream_beginning_message(struct bt_msg_iter *notit, | |
3059 | bool val) | |
3060 | { | |
3061 | notit->emit_stream_begin_msg = val; | |
3062 | } | |
3063 | ||
3064 | BT_HIDDEN | |
3065 | void bt_msg_iter_set_emit_stream_end_message(struct bt_msg_iter *notit, | |
3066 | bool val) | |
3067 | { | |
3068 | notit->emit_stream_end_msg = val; | |
3069 | } |