Commit | Line | Data |
---|---|---|
e98a2d6e | 1 | /* |
0235b0db | 2 | * SPDX-License-Identifier: MIT |
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 | 6 | * |
0235b0db | 7 | * Babeltrace - CTF message iterator |
e98a2d6e PP |
8 | */ |
9 | ||
3adcb386 FD |
10 | #define BT_COMP_LOG_SELF_COMP (msg_it->self_comp) |
11 | #define BT_LOG_OUTPUT_LEVEL (msg_it->log_level) | |
350ad6c1 | 12 | #define BT_LOG_TAG "PLUGIN/CTF/MSG-ITER" |
d9c39b0a | 13 | #include "logging/comp-logging.h" |
fdf0e7a0 | 14 | |
e98a2d6e PP |
15 | #include <stdint.h> |
16 | #include <inttypes.h> | |
17 | #include <stdio.h> | |
18 | #include <stddef.h> | |
19 | #include <stdbool.h> | |
578e048b | 20 | #include "common/assert.h" |
e98a2d6e | 21 | #include <string.h> |
3fadfbc0 | 22 | #include <babeltrace2/babeltrace.h> |
578e048b | 23 | #include "common/common.h" |
e98a2d6e | 24 | #include <glib.h> |
0fbb9a9f | 25 | #include <stdlib.h> |
e98a2d6e | 26 | |
d6e69534 | 27 | #include "msg-iter.h" |
5cd6d0e5 | 28 | #include "../bfcr/bfcr.h" |
e98a2d6e | 29 | |
18a1979b | 30 | struct ctf_msg_iter; |
e98a2d6e PP |
31 | |
32 | /* A visit stack entry */ | |
33 | struct stack_entry { | |
34 | /* | |
35 | * Current base field, one of: | |
36 | * | |
37 | * * string | |
38 | * * structure | |
39 | * * array | |
40 | * * sequence | |
41 | * * variant | |
42 | * | |
312c056a | 43 | * Field is borrowed. |
e98a2d6e | 44 | */ |
b19ff26f | 45 | bt_field *base; |
e98a2d6e | 46 | |
44c440bc | 47 | /* Index of next field to set */ |
e98a2d6e PP |
48 | size_t index; |
49 | }; | |
50 | ||
18a1979b | 51 | struct ctf_msg_iter; |
ea14c7dd | 52 | |
e98a2d6e PP |
53 | /* Visit stack */ |
54 | struct stack { | |
18a1979b | 55 | struct ctf_msg_iter *msg_it; |
ea14c7dd | 56 | |
afe86a06 PP |
57 | /* Entries (struct stack_entry) */ |
58 | GArray *entries; | |
59 | ||
60 | /* Number of active entries */ | |
61 | size_t size; | |
e98a2d6e PP |
62 | }; |
63 | ||
64 | /* State */ | |
65 | enum state { | |
66 | STATE_INIT, | |
44269abb | 67 | STATE_SWITCH_PACKET, |
e98a2d6e PP |
68 | STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN, |
69 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
70 | STATE_AFTER_TRACE_PACKET_HEADER, | |
71 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN, | |
72 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
73 | STATE_AFTER_STREAM_PACKET_CONTEXT, | |
fc917f65 | 74 | STATE_EMIT_MSG_STREAM_BEGINNING, |
495490c5 PP |
75 | STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS, |
76 | STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS, | |
77 | STATE_EMIT_MSG_DISCARDED_EVENTS, | |
78 | STATE_EMIT_MSG_DISCARDED_PACKETS, | |
fc917f65 | 79 | STATE_EMIT_MSG_PACKET_BEGINNING, |
44c440bc PP |
80 | STATE_DSCOPE_EVENT_HEADER_BEGIN, |
81 | STATE_DSCOPE_EVENT_HEADER_CONTINUE, | |
82 | STATE_AFTER_EVENT_HEADER, | |
83 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN, | |
84 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE, | |
85 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN, | |
86 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE, | |
e98a2d6e PP |
87 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, |
88 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
d6e69534 | 89 | STATE_EMIT_MSG_EVENT, |
1eb28907 | 90 | STATE_EMIT_QUEUED_MSG_EVENT, |
e98a2d6e | 91 | STATE_SKIP_PACKET_PADDING, |
fc917f65 PP |
92 | STATE_EMIT_MSG_PACKET_END_MULTI, |
93 | STATE_EMIT_MSG_PACKET_END_SINGLE, | |
1eb28907 | 94 | STATE_EMIT_QUEUED_MSG_PACKET_END, |
1cda4ff4 | 95 | STATE_CHECK_EMIT_MSG_STREAM_END, |
fc917f65 PP |
96 | STATE_EMIT_MSG_STREAM_END, |
97 | STATE_DONE, | |
e98a2d6e PP |
98 | }; |
99 | ||
495490c5 PP |
100 | struct end_of_packet_snapshots { |
101 | uint64_t discarded_events; | |
102 | uint64_t packets; | |
103 | uint64_t beginning_clock; | |
104 | uint64_t end_clock; | |
105 | }; | |
106 | ||
d6e69534 | 107 | /* CTF message iterator */ |
18a1979b | 108 | struct ctf_msg_iter { |
e98a2d6e PP |
109 | /* Visit stack */ |
110 | struct stack *stack; | |
111 | ||
d6e69534 | 112 | /* Current message iterator to create messages (weak) */ |
e5d25da2 | 113 | bt_self_message_iterator *self_msg_iter; |
5c563278 | 114 | |
de24a43f FD |
115 | /* |
116 | * True if library objects are unavailable during the decoding and | |
117 | * should not be created/used. | |
118 | */ | |
119 | bool dry_run; | |
120 | ||
e98a2d6e PP |
121 | /* |
122 | * Current dynamic scope field pointer. | |
123 | * | |
312c056a PP |
124 | * This is set by read_dscope_begin_state() and contains the |
125 | * value of one of the pointers in `dscopes` below. | |
e98a2d6e | 126 | */ |
b19ff26f | 127 | bt_field *cur_dscope_field; |
e98a2d6e | 128 | |
44c440bc PP |
129 | /* |
130 | * True if we're done filling a string field from a text | |
131 | * array/sequence payload. | |
132 | */ | |
133 | bool done_filling_string; | |
134 | ||
135 | /* Trace and classes */ | |
41693723 PP |
136 | /* True to set IR fields */ |
137 | bool set_ir_fields; | |
138 | ||
e98a2d6e | 139 | struct { |
44c440bc PP |
140 | struct ctf_trace_class *tc; |
141 | struct ctf_stream_class *sc; | |
142 | struct ctf_event_class *ec; | |
e98a2d6e PP |
143 | } meta; |
144 | ||
145 | /* Current packet (NULL if not created yet) */ | |
b19ff26f | 146 | bt_packet *packet; |
e98a2d6e | 147 | |
af87daef | 148 | /* Current stream (NULL if not set yet) */ |
b19ff26f | 149 | bt_stream *stream; |
af87daef | 150 | |
312c056a | 151 | /* Current event (NULL if not created yet) */ |
b19ff26f | 152 | bt_event *event; |
312c056a | 153 | |
d6e69534 PP |
154 | /* Current event message (NULL if not created yet) */ |
155 | bt_message *event_msg; | |
312c056a | 156 | |
1eb28907 FD |
157 | /* |
158 | * True if we need to emit a packet beginning message before we emit | |
159 | * the next event message or the packet end message. | |
160 | */ | |
161 | bool emit_delayed_packet_beginning_msg; | |
162 | ||
bc0ae364 SM |
163 | /* |
164 | * True if this is the first packet we are reading, and therefore if we | |
165 | * should emit a stream beginning message. | |
166 | */ | |
167 | bool emit_stream_beginning_message; | |
168 | ||
1cda4ff4 FD |
169 | /* |
170 | * True if we need to emit a stream end message at the end of the | |
171 | * current stream. A live stream may never receive any data and thus | |
172 | * never send a stream beginning message which removes the need to emit | |
173 | * a stream end message. | |
174 | */ | |
175 | bool emit_stream_end_message; | |
176 | ||
44c440bc | 177 | /* Database of current dynamic scopes */ |
e98a2d6e | 178 | struct { |
b19ff26f | 179 | bt_field *stream_packet_context; |
b19ff26f PP |
180 | bt_field *event_common_context; |
181 | bt_field *event_spec_context; | |
182 | bt_field *event_payload; | |
e98a2d6e PP |
183 | } dscopes; |
184 | ||
185 | /* Current state */ | |
186 | enum state state; | |
187 | ||
2cf1d51e | 188 | /* Current medium buffer data */ |
e98a2d6e PP |
189 | struct { |
190 | /* Last address provided by medium */ | |
191 | const uint8_t *addr; | |
192 | ||
193 | /* Buffer size provided by medium (bytes) */ | |
194 | size_t sz; | |
195 | ||
196 | /* Offset within whole packet of addr (bits) */ | |
197 | size_t packet_offset; | |
198 | ||
199 | /* Current position from addr (bits) */ | |
200 | size_t at; | |
174e773b PP |
201 | |
202 | /* Position of the last event header from addr (bits) */ | |
203 | size_t last_eh_at; | |
e98a2d6e PP |
204 | } buf; |
205 | ||
206 | /* Binary type reader */ | |
5cd6d0e5 | 207 | struct bt_bfcr *bfcr; |
e98a2d6e | 208 | |
2cf1d51e | 209 | /* Current medium data */ |
e98a2d6e | 210 | struct { |
18a1979b | 211 | struct ctf_msg_iter_medium_ops medops; |
e98a2d6e PP |
212 | size_t max_request_sz; |
213 | void *data; | |
214 | } medium; | |
215 | ||
216 | /* Current packet size (bits) (-1 if unknown) */ | |
44c440bc | 217 | int64_t cur_exp_packet_total_size; |
e98a2d6e PP |
218 | |
219 | /* Current content size (bits) (-1 if unknown) */ | |
44c440bc | 220 | int64_t cur_exp_packet_content_size; |
c44c3e70 | 221 | |
44c440bc PP |
222 | /* Current stream class ID */ |
223 | int64_t cur_stream_class_id; | |
9e0c8dbb | 224 | |
44c440bc PP |
225 | /* Current event class ID */ |
226 | int64_t cur_event_class_id; | |
5f870343 | 227 | |
44c440bc PP |
228 | /* Current data stream ID */ |
229 | int64_t cur_data_stream_id; | |
5f870343 JG |
230 | |
231 | /* | |
44c440bc PP |
232 | * Offset, in the underlying media, of the current packet's |
233 | * start (-1 if unknown). | |
5f870343 | 234 | */ |
44c440bc PP |
235 | off_t cur_packet_offset; |
236 | ||
237 | /* Default clock's current value */ | |
605e1019 | 238 | uint64_t default_clock_snapshot; |
5f870343 | 239 | |
495490c5 PP |
240 | /* End of current packet snapshots */ |
241 | struct end_of_packet_snapshots snapshots; | |
242 | ||
243 | /* End of previous packet snapshots */ | |
244 | struct end_of_packet_snapshots prev_packet_snapshots; | |
44c440bc PP |
245 | |
246 | /* Stored values (for sequence lengths, variant tags) */ | |
247 | GArray *stored_values; | |
ea14c7dd PP |
248 | |
249 | /* Iterator's current log level */ | |
250 | bt_logging_level log_level; | |
eb7f6c4f PP |
251 | |
252 | /* Iterator's owning self component, or `NULL` if none (query) */ | |
253 | bt_self_component *self_comp; | |
e98a2d6e PP |
254 | }; |
255 | ||
fdf0e7a0 PP |
256 | static inline |
257 | const char *state_string(enum state state) | |
258 | { | |
259 | switch (state) { | |
260 | case STATE_INIT: | |
8a432889 | 261 | return "INIT"; |
44269abb PP |
262 | case STATE_SWITCH_PACKET: |
263 | return "SWITCH_PACKET"; | |
fdf0e7a0 | 264 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: |
8a432889 | 265 | return "DSCOPE_TRACE_PACKET_HEADER_BEGIN"; |
fdf0e7a0 | 266 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: |
8a432889 | 267 | return "DSCOPE_TRACE_PACKET_HEADER_CONTINUE"; |
fdf0e7a0 | 268 | case STATE_AFTER_TRACE_PACKET_HEADER: |
8a432889 | 269 | return "AFTER_TRACE_PACKET_HEADER"; |
fdf0e7a0 | 270 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: |
8a432889 | 271 | return "DSCOPE_STREAM_PACKET_CONTEXT_BEGIN"; |
fdf0e7a0 | 272 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: |
8a432889 | 273 | return "DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE"; |
fdf0e7a0 | 274 | case STATE_AFTER_STREAM_PACKET_CONTEXT: |
8a432889 | 275 | return "AFTER_STREAM_PACKET_CONTEXT"; |
fc917f65 | 276 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
8a432889 | 277 | return "EMIT_MSG_STREAM_BEGINNING"; |
00dff0ec SM |
278 | case STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS: |
279 | return "CHECK_EMIT_MSG_DISCARDED_EVENTS"; | |
280 | case STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS: | |
281 | return "CHECK_EMIT_MSG_DISCARDED_PACKETS"; | |
fc917f65 | 282 | case STATE_EMIT_MSG_PACKET_BEGINNING: |
8a432889 | 283 | return "EMIT_MSG_PACKET_BEGINNING"; |
495490c5 | 284 | case STATE_EMIT_MSG_DISCARDED_EVENTS: |
8a432889 | 285 | return "EMIT_MSG_DISCARDED_EVENTS"; |
495490c5 | 286 | case STATE_EMIT_MSG_DISCARDED_PACKETS: |
8a432889 | 287 | return "EMIT_MSG_DISCARDED_PACKETS"; |
44c440bc | 288 | case STATE_DSCOPE_EVENT_HEADER_BEGIN: |
8a432889 | 289 | return "DSCOPE_EVENT_HEADER_BEGIN"; |
44c440bc | 290 | case STATE_DSCOPE_EVENT_HEADER_CONTINUE: |
8a432889 | 291 | return "DSCOPE_EVENT_HEADER_CONTINUE"; |
44c440bc | 292 | case STATE_AFTER_EVENT_HEADER: |
8a432889 | 293 | return "AFTER_EVENT_HEADER"; |
44c440bc | 294 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN: |
8a432889 | 295 | return "DSCOPE_EVENT_COMMON_CONTEXT_BEGIN"; |
44c440bc | 296 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE: |
8a432889 | 297 | return "DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE"; |
44c440bc | 298 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN: |
8a432889 | 299 | return "DSCOPE_EVENT_SPEC_CONTEXT_BEGIN"; |
44c440bc | 300 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE: |
8a432889 | 301 | return "DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE"; |
fdf0e7a0 | 302 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: |
8a432889 | 303 | return "DSCOPE_EVENT_PAYLOAD_BEGIN"; |
fdf0e7a0 | 304 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: |
8a432889 | 305 | return "DSCOPE_EVENT_PAYLOAD_CONTINUE"; |
d6e69534 | 306 | case STATE_EMIT_MSG_EVENT: |
8a432889 | 307 | return "EMIT_MSG_EVENT"; |
1eb28907 FD |
308 | case STATE_EMIT_QUEUED_MSG_EVENT: |
309 | return "EMIT_QUEUED_MSG_EVENT"; | |
fdf0e7a0 | 310 | case STATE_SKIP_PACKET_PADDING: |
8a432889 | 311 | return "SKIP_PACKET_PADDING"; |
fc917f65 | 312 | case STATE_EMIT_MSG_PACKET_END_MULTI: |
8a432889 | 313 | return "EMIT_MSG_PACKET_END_MULTI"; |
fc917f65 | 314 | case STATE_EMIT_MSG_PACKET_END_SINGLE: |
8a432889 | 315 | return "EMIT_MSG_PACKET_END_SINGLE"; |
1eb28907 FD |
316 | case STATE_EMIT_QUEUED_MSG_PACKET_END: |
317 | return "EMIT_QUEUED_MSG_PACKET_END"; | |
1cda4ff4 FD |
318 | case STATE_CHECK_EMIT_MSG_STREAM_END: |
319 | return "CHECK_EMIT_MSG_STREAM_END"; | |
fc917f65 | 320 | case STATE_EMIT_MSG_STREAM_END: |
8a432889 | 321 | return "EMIT_MSG_STREAM_END"; |
fc917f65 | 322 | case STATE_DONE: |
8a432889 | 323 | return "DONE"; |
fdf0e7a0 | 324 | } |
00dff0ec SM |
325 | |
326 | bt_common_abort(); | |
fdf0e7a0 PP |
327 | } |
328 | ||
e98a2d6e | 329 | static |
18a1979b | 330 | struct stack *stack_new(struct ctf_msg_iter *msg_it) |
e98a2d6e | 331 | { |
3adcb386 | 332 | bt_self_component *self_comp = msg_it->self_comp; |
e98a2d6e PP |
333 | struct stack *stack = NULL; |
334 | ||
335 | stack = g_new0(struct stack, 1); | |
336 | if (!stack) { | |
2246e99d FD |
337 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
338 | "Failed to allocate one stack."); | |
e98a2d6e PP |
339 | goto error; |
340 | } | |
341 | ||
3adcb386 | 342 | stack->msg_it = msg_it; |
afe86a06 | 343 | stack->entries = g_array_new(FALSE, TRUE, sizeof(struct stack_entry)); |
e98a2d6e | 344 | if (!stack->entries) { |
2246e99d FD |
345 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
346 | "Failed to allocate a GArray."); | |
e98a2d6e PP |
347 | goto error; |
348 | } | |
349 | ||
3adcb386 | 350 | BT_COMP_LOGD("Created stack: msg-it-addr=%p, stack-addr=%p", msg_it, stack); |
44c440bc | 351 | goto end; |
fdf0e7a0 | 352 | |
e98a2d6e PP |
353 | error: |
354 | g_free(stack); | |
44c440bc PP |
355 | stack = NULL; |
356 | ||
357 | end: | |
358 | return stack; | |
e98a2d6e PP |
359 | } |
360 | ||
361 | static | |
362 | void stack_destroy(struct stack *stack) | |
363 | { | |
18a1979b | 364 | struct ctf_msg_iter *msg_it; |
ea14c7dd | 365 | |
98b15851 | 366 | BT_ASSERT_DBG(stack); |
3adcb386 | 367 | msg_it = stack->msg_it; |
eb7f6c4f | 368 | BT_COMP_LOGD("Destroying stack: addr=%p", stack); |
afe86a06 PP |
369 | |
370 | if (stack->entries) { | |
371 | g_array_free(stack->entries, TRUE); | |
372 | } | |
373 | ||
e98a2d6e PP |
374 | g_free(stack); |
375 | } | |
376 | ||
377 | static | |
b19ff26f | 378 | void stack_push(struct stack *stack, bt_field *base) |
e98a2d6e | 379 | { |
e98a2d6e | 380 | struct stack_entry *entry; |
18a1979b | 381 | struct ctf_msg_iter *msg_it; |
e98a2d6e | 382 | |
98b15851 | 383 | BT_ASSERT_DBG(stack); |
3adcb386 | 384 | msg_it = stack->msg_it; |
98b15851 | 385 | BT_ASSERT_DBG(base); |
ef267d12 | 386 | BT_COMP_LOGT("Pushing base field on stack: stack-addr=%p, " |
afe86a06 PP |
387 | "stack-size-before=%zu, stack-size-after=%zu", |
388 | stack, stack->size, stack->size + 1); | |
389 | ||
390 | if (stack->entries->len == stack->size) { | |
391 | g_array_set_size(stack->entries, stack->size + 1); | |
e98a2d6e PP |
392 | } |
393 | ||
afe86a06 | 394 | entry = &g_array_index(stack->entries, struct stack_entry, stack->size); |
312c056a | 395 | entry->base = base; |
afe86a06 PP |
396 | entry->index = 0; |
397 | stack->size++; | |
e98a2d6e PP |
398 | } |
399 | ||
400 | static inline | |
401 | unsigned int stack_size(struct stack *stack) | |
402 | { | |
98b15851 | 403 | BT_ASSERT_DBG(stack); |
afe86a06 | 404 | return stack->size; |
e98a2d6e PP |
405 | } |
406 | ||
407 | static | |
408 | void stack_pop(struct stack *stack) | |
409 | { | |
18a1979b | 410 | struct ctf_msg_iter *msg_it; |
ea14c7dd | 411 | |
98b15851 PP |
412 | BT_ASSERT_DBG(stack); |
413 | BT_ASSERT_DBG(stack_size(stack)); | |
3adcb386 | 414 | msg_it = stack->msg_it; |
ef267d12 | 415 | BT_COMP_LOGT("Popping from stack: " |
afe86a06 PP |
416 | "stack-addr=%p, stack-size-before=%zu, stack-size-after=%zu", |
417 | stack, stack->size, stack->size - 1); | |
418 | stack->size--; | |
e98a2d6e PP |
419 | } |
420 | ||
421 | static inline | |
422 | struct stack_entry *stack_top(struct stack *stack) | |
423 | { | |
98b15851 PP |
424 | BT_ASSERT_DBG(stack); |
425 | BT_ASSERT_DBG(stack_size(stack)); | |
afe86a06 PP |
426 | return &g_array_index(stack->entries, struct stack_entry, |
427 | stack->size - 1); | |
e98a2d6e PP |
428 | } |
429 | ||
430 | static inline | |
431 | bool stack_empty(struct stack *stack) | |
432 | { | |
433 | return stack_size(stack) == 0; | |
434 | } | |
435 | ||
436 | static | |
437 | void stack_clear(struct stack *stack) | |
438 | { | |
98b15851 | 439 | BT_ASSERT_DBG(stack); |
afe86a06 | 440 | stack->size = 0; |
e98a2d6e PP |
441 | } |
442 | ||
443 | static inline | |
18a1979b SM |
444 | enum ctf_msg_iter_status msg_iter_status_from_m_status( |
445 | enum ctf_msg_iter_medium_status m_status) | |
e98a2d6e | 446 | { |
44c440bc | 447 | /* They are the same */ |
dc77b521 | 448 | return (int) m_status; |
e98a2d6e PP |
449 | } |
450 | ||
451 | static inline | |
18a1979b | 452 | size_t buf_size_bits(struct ctf_msg_iter *msg_it) |
e98a2d6e | 453 | { |
3adcb386 | 454 | return msg_it->buf.sz * 8; |
e98a2d6e PP |
455 | } |
456 | ||
457 | static inline | |
18a1979b | 458 | size_t buf_available_bits(struct ctf_msg_iter *msg_it) |
e98a2d6e | 459 | { |
3adcb386 | 460 | return buf_size_bits(msg_it) - msg_it->buf.at; |
e98a2d6e PP |
461 | } |
462 | ||
463 | static inline | |
18a1979b | 464 | size_t packet_at(struct ctf_msg_iter *msg_it) |
e98a2d6e | 465 | { |
3adcb386 | 466 | return msg_it->buf.packet_offset + msg_it->buf.at; |
e98a2d6e PP |
467 | } |
468 | ||
e98a2d6e | 469 | static inline |
18a1979b | 470 | void buf_consume_bits(struct ctf_msg_iter *msg_it, size_t incr) |
e98a2d6e | 471 | { |
3adcb386 FD |
472 | BT_COMP_LOGT("Advancing cursor: msg-it-addr=%p, cur-before=%zu, cur-after=%zu", |
473 | msg_it, msg_it->buf.at, msg_it->buf.at + incr); | |
474 | msg_it->buf.at += incr; | |
e98a2d6e PP |
475 | } |
476 | ||
e98a2d6e | 477 | static |
18a1979b SM |
478 | enum ctf_msg_iter_status request_medium_bytes( |
479 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 480 | { |
3adcb386 | 481 | bt_self_component *self_comp = msg_it->self_comp; |
fdf0e7a0 PP |
482 | uint8_t *buffer_addr = NULL; |
483 | size_t buffer_sz = 0; | |
18a1979b | 484 | enum ctf_msg_iter_medium_status m_status; |
e98a2d6e | 485 | |
3adcb386 FD |
486 | BT_COMP_LOGD("Calling user function (request bytes): msg-it-addr=%p, " |
487 | "request-size=%zu", msg_it, msg_it->medium.max_request_sz); | |
488 | m_status = msg_it->medium.medops.request_bytes( | |
489 | msg_it->medium.max_request_sz, &buffer_addr, | |
490 | &buffer_sz, msg_it->medium.data); | |
eb7f6c4f | 491 | BT_COMP_LOGD("User function returned: status=%s, buf-addr=%p, buf-size=%zu", |
18a1979b | 492 | ctf_msg_iter_medium_status_string(m_status), |
fdf0e7a0 | 493 | buffer_addr, buffer_sz); |
18a1979b | 494 | if (m_status == CTF_MSG_ITER_MEDIUM_STATUS_OK) { |
f6ccaed9 | 495 | BT_ASSERT(buffer_sz != 0); |
e98a2d6e PP |
496 | |
497 | /* New packet offset is old one + old size (in bits) */ | |
3adcb386 | 498 | msg_it->buf.packet_offset += buf_size_bits(msg_it); |
e98a2d6e PP |
499 | |
500 | /* Restart at the beginning of the new medium buffer */ | |
3adcb386 FD |
501 | msg_it->buf.at = 0; |
502 | msg_it->buf.last_eh_at = SIZE_MAX; | |
e98a2d6e PP |
503 | |
504 | /* New medium buffer size */ | |
3adcb386 | 505 | msg_it->buf.sz = buffer_sz; |
e98a2d6e PP |
506 | |
507 | /* New medium buffer address */ | |
3adcb386 | 508 | msg_it->buf.addr = buffer_addr; |
fdf0e7a0 | 509 | |
eb7f6c4f | 510 | BT_COMP_LOGD("User function returned new bytes: " |
fdf0e7a0 | 511 | "packet-offset=%zu, cur=%zu, size=%zu, addr=%p", |
3adcb386 FD |
512 | msg_it->buf.packet_offset, msg_it->buf.at, |
513 | msg_it->buf.sz, msg_it->buf.addr); | |
6a0b47ba | 514 | BT_COMP_LOGT_MEM(buffer_addr, buffer_sz, "Returned bytes at %p:", |
fdf0e7a0 | 515 | buffer_addr); |
18a1979b | 516 | } else if (m_status == CTF_MSG_ITER_MEDIUM_STATUS_EOF) { |
0684124b PP |
517 | /* |
518 | * User returned end of stream: validate that we're not | |
519 | * in the middle of a packet header, packet context, or | |
520 | * event. | |
521 | */ | |
3adcb386 FD |
522 | if (msg_it->cur_exp_packet_total_size >= 0) { |
523 | if (packet_at(msg_it) == | |
524 | msg_it->cur_exp_packet_total_size) { | |
df0139b8 | 525 | goto end; |
0684124b | 526 | } |
df0139b8 | 527 | } else { |
3adcb386 | 528 | if (packet_at(msg_it) == 0) { |
df0139b8 | 529 | goto end; |
0684124b | 530 | } |
0684124b | 531 | |
3adcb386 FD |
532 | if (msg_it->buf.last_eh_at != SIZE_MAX && |
533 | msg_it->buf.at == msg_it->buf.last_eh_at) { | |
df0139b8 | 534 | goto end; |
0684124b PP |
535 | } |
536 | } | |
537 | ||
0684124b | 538 | /* All other states are invalid */ |
2246e99d FD |
539 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
540 | "User function returned %s, but message iterator is in an unexpected state: " | |
df0139b8 PP |
541 | "state=%s, cur-packet-size=%" PRId64 ", cur=%zu, " |
542 | "packet-cur=%zu, last-eh-at=%zu", | |
18a1979b | 543 | ctf_msg_iter_medium_status_string(m_status), |
3adcb386 FD |
544 | state_string(msg_it->state), |
545 | msg_it->cur_exp_packet_total_size, | |
546 | msg_it->buf.at, packet_at(msg_it), | |
547 | msg_it->buf.last_eh_at); | |
18a1979b | 548 | m_status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; |
fdf0e7a0 | 549 | } else if (m_status < 0) { |
2246e99d | 550 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "User function failed: " |
18a1979b | 551 | "status=%s", ctf_msg_iter_medium_status_string(m_status)); |
e98a2d6e PP |
552 | } |
553 | ||
df0139b8 | 554 | end: |
d6e69534 | 555 | return msg_iter_status_from_m_status(m_status); |
e98a2d6e PP |
556 | } |
557 | ||
558 | static inline | |
18a1979b SM |
559 | enum ctf_msg_iter_status buf_ensure_available_bits( |
560 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 561 | { |
18a1979b | 562 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
e98a2d6e | 563 | |
3adcb386 | 564 | if (G_UNLIKELY(buf_available_bits(msg_it) == 0)) { |
e98a2d6e | 565 | /* |
18a1979b | 566 | * This _cannot_ return CTF_MSG_ITER_STATUS_OK |
e98a2d6e PP |
567 | * _and_ no bits. |
568 | */ | |
3adcb386 | 569 | status = request_medium_bytes(msg_it); |
e98a2d6e PP |
570 | } |
571 | ||
572 | return status; | |
573 | } | |
574 | ||
575 | static | |
18a1979b SM |
576 | enum ctf_msg_iter_status read_dscope_begin_state( |
577 | struct ctf_msg_iter *msg_it, | |
5cd6d0e5 | 578 | struct ctf_field_class *dscope_fc, |
e98a2d6e | 579 | enum state done_state, enum state continue_state, |
b19ff26f | 580 | bt_field *dscope_field) |
e98a2d6e | 581 | { |
18a1979b | 582 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 583 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 584 | enum bt_bfcr_status bfcr_status; |
e98a2d6e PP |
585 | size_t consumed_bits; |
586 | ||
3adcb386 FD |
587 | msg_it->cur_dscope_field = dscope_field; |
588 | BT_COMP_LOGT("Starting BFCR: msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p", | |
589 | msg_it, msg_it->bfcr, dscope_fc); | |
590 | consumed_bits = bt_bfcr_start(msg_it->bfcr, dscope_fc, | |
591 | msg_it->buf.addr, msg_it->buf.at, packet_at(msg_it), | |
592 | msg_it->buf.sz, &bfcr_status); | |
ef267d12 | 593 | BT_COMP_LOGT("BFCR consumed bits: size=%zu", consumed_bits); |
e98a2d6e | 594 | |
5cd6d0e5 PP |
595 | switch (bfcr_status) { |
596 | case BT_BFCR_STATUS_OK: | |
597 | /* Field class was read completely */ | |
ef267d12 | 598 | BT_COMP_LOGT_STR("Field was completely decoded."); |
3adcb386 | 599 | msg_it->state = done_state; |
e98a2d6e | 600 | break; |
5cd6d0e5 | 601 | case BT_BFCR_STATUS_EOF: |
ef267d12 | 602 | BT_COMP_LOGT_STR("BFCR needs more data to decode field completely."); |
3adcb386 | 603 | msg_it->state = continue_state; |
e98a2d6e PP |
604 | break; |
605 | default: | |
2246e99d | 606 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
3adcb386 FD |
607 | "BFCR failed to start: msg-it-addr=%p, bfcr-addr=%p, " |
608 | "status=%s", msg_it, msg_it->bfcr, | |
5cd6d0e5 | 609 | bt_bfcr_status_string(bfcr_status)); |
18a1979b | 610 | status = CTF_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
611 | goto end; |
612 | } | |
613 | ||
614 | /* Consume bits now since we know we're not in an error state */ | |
3adcb386 | 615 | buf_consume_bits(msg_it, consumed_bits); |
e98a2d6e PP |
616 | |
617 | end: | |
618 | return status; | |
619 | } | |
620 | ||
621 | static | |
18a1979b SM |
622 | enum ctf_msg_iter_status read_dscope_continue_state( |
623 | struct ctf_msg_iter *msg_it, enum state done_state) | |
e98a2d6e | 624 | { |
18a1979b | 625 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 626 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 627 | enum bt_bfcr_status bfcr_status; |
e98a2d6e PP |
628 | size_t consumed_bits; |
629 | ||
3adcb386 FD |
630 | BT_COMP_LOGT("Continuing BFCR: msg-it-addr=%p, bfcr-addr=%p", |
631 | msg_it, msg_it->bfcr); | |
df0139b8 | 632 | |
3adcb386 | 633 | status = buf_ensure_available_bits(msg_it); |
18a1979b | 634 | if (status != CTF_MSG_ITER_STATUS_OK) { |
fdf0e7a0 | 635 | if (status < 0) { |
2246e99d FD |
636 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
637 | "Cannot ensure that buffer has at least one byte: " | |
d6e69534 | 638 | "msg-addr=%p, status=%s", |
18a1979b | 639 | msg_it, ctf_msg_iter_status_string(status)); |
fdf0e7a0 | 640 | } else { |
ef267d12 | 641 | BT_COMP_LOGT("Cannot ensure that buffer has at least one byte: " |
d6e69534 | 642 | "msg-addr=%p, status=%s", |
18a1979b | 643 | msg_it, ctf_msg_iter_status_string(status)); |
fdf0e7a0 PP |
644 | } |
645 | ||
e98a2d6e PP |
646 | goto end; |
647 | } | |
648 | ||
3adcb386 FD |
649 | consumed_bits = bt_bfcr_continue(msg_it->bfcr, msg_it->buf.addr, |
650 | msg_it->buf.sz, &bfcr_status); | |
ef267d12 | 651 | BT_COMP_LOGT("BFCR consumed bits: size=%zu", consumed_bits); |
e98a2d6e | 652 | |
5cd6d0e5 PP |
653 | switch (bfcr_status) { |
654 | case BT_BFCR_STATUS_OK: | |
78586d8a | 655 | /* Type was read completely. */ |
ef267d12 | 656 | BT_COMP_LOGT_STR("Field was completely decoded."); |
3adcb386 | 657 | msg_it->state = done_state; |
e98a2d6e | 658 | break; |
5cd6d0e5 | 659 | case BT_BFCR_STATUS_EOF: |
78586d8a | 660 | /* Stay in this continue state. */ |
ef267d12 | 661 | BT_COMP_LOGT_STR("BFCR needs more data to decode field completely."); |
e98a2d6e PP |
662 | break; |
663 | default: | |
2246e99d | 664 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
3adcb386 FD |
665 | "BFCR failed to continue: msg-it-addr=%p, bfcr-addr=%p, " |
666 | "status=%s", msg_it, msg_it->bfcr, | |
5cd6d0e5 | 667 | bt_bfcr_status_string(bfcr_status)); |
18a1979b | 668 | status = CTF_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
669 | goto end; |
670 | } | |
671 | ||
78586d8a | 672 | /* Consume bits now since we know we're not in an error state. */ |
3adcb386 | 673 | buf_consume_bits(msg_it, consumed_bits); |
e98a2d6e PP |
674 | end: |
675 | return status; | |
676 | } | |
677 | ||
678 | static | |
18a1979b | 679 | void release_event_dscopes(struct ctf_msg_iter *msg_it) |
e98a2d6e | 680 | { |
3adcb386 FD |
681 | msg_it->dscopes.event_common_context = NULL; |
682 | msg_it->dscopes.event_spec_context = NULL; | |
683 | msg_it->dscopes.event_payload = NULL; | |
e98a2d6e PP |
684 | } |
685 | ||
686 | static | |
18a1979b | 687 | void release_all_dscopes(struct ctf_msg_iter *msg_it) |
e98a2d6e | 688 | { |
3adcb386 | 689 | msg_it->dscopes.stream_packet_context = NULL; |
312c056a | 690 | |
3adcb386 | 691 | release_event_dscopes(msg_it); |
e98a2d6e PP |
692 | } |
693 | ||
44269abb | 694 | static |
18a1979b | 695 | enum ctf_msg_iter_status switch_packet_state(struct ctf_msg_iter *msg_it) |
44269abb | 696 | { |
f6e68e70 | 697 | enum ctf_msg_iter_status status; |
3adcb386 | 698 | bt_self_component *self_comp = msg_it->self_comp; |
44269abb PP |
699 | |
700 | /* | |
701 | * We don't put the stream class here because we need to make | |
702 | * sure that all the packets processed by the same message | |
703 | * iterator refer to the same stream class (the first one). | |
704 | */ | |
3adcb386 | 705 | BT_ASSERT(msg_it); |
44269abb | 706 | |
3adcb386 FD |
707 | if (msg_it->cur_exp_packet_total_size != -1) { |
708 | msg_it->cur_packet_offset += msg_it->cur_exp_packet_total_size; | |
44269abb PP |
709 | } |
710 | ||
3adcb386 FD |
711 | BT_COMP_LOGD("Switching packet: msg-it-addr=%p, cur=%zu, " |
712 | "packet-offset=%" PRId64, msg_it, msg_it->buf.at, | |
713 | msg_it->cur_packet_offset); | |
714 | stack_clear(msg_it->stack); | |
715 | msg_it->meta.ec = NULL; | |
716 | BT_PACKET_PUT_REF_AND_RESET(msg_it->packet); | |
717 | BT_MESSAGE_PUT_REF_AND_RESET(msg_it->event_msg); | |
718 | release_all_dscopes(msg_it); | |
719 | msg_it->cur_dscope_field = NULL; | |
44269abb | 720 | |
f6e68e70 SM |
721 | if (msg_it->medium.medops.switch_packet) { |
722 | enum ctf_msg_iter_medium_status medium_status; | |
723 | ||
724 | medium_status = msg_it->medium.medops.switch_packet(msg_it->medium.data); | |
725 | if (medium_status == CTF_MSG_ITER_MEDIUM_STATUS_EOF) { | |
726 | /* No more packets. */ | |
1cda4ff4 | 727 | msg_it->state = STATE_CHECK_EMIT_MSG_STREAM_END; |
f6e68e70 SM |
728 | status = CTF_MSG_ITER_STATUS_OK; |
729 | goto end; | |
730 | } else if (medium_status != CTF_MSG_ITER_MEDIUM_STATUS_OK) { | |
731 | status = (int) medium_status; | |
732 | goto end; | |
733 | } | |
734 | ||
735 | /* | |
736 | * After the packet switch, the medium might want to give us a | |
737 | * different buffer for the new packet. | |
738 | */ | |
739 | status = request_medium_bytes(msg_it); | |
740 | if (status != CTF_MSG_ITER_STATUS_OK) { | |
741 | goto end; | |
742 | } | |
743 | } | |
744 | ||
44269abb PP |
745 | /* |
746 | * Adjust current buffer so that addr points to the beginning of the new | |
747 | * packet. | |
748 | */ | |
3adcb386 FD |
749 | if (msg_it->buf.addr) { |
750 | size_t consumed_bytes = (size_t) (msg_it->buf.at / CHAR_BIT); | |
44269abb PP |
751 | |
752 | /* Packets are assumed to start on a byte frontier. */ | |
3adcb386 | 753 | if (msg_it->buf.at % CHAR_BIT) { |
2246e99d FD |
754 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
755 | "Cannot switch packet: current position is not a multiple of 8: " | |
3adcb386 | 756 | "msg-it-addr=%p, cur=%zu", msg_it, msg_it->buf.at); |
18a1979b | 757 | status = CTF_MSG_ITER_STATUS_ERROR; |
44269abb PP |
758 | goto end; |
759 | } | |
760 | ||
3adcb386 FD |
761 | msg_it->buf.addr += consumed_bytes; |
762 | msg_it->buf.sz -= consumed_bytes; | |
763 | msg_it->buf.at = 0; | |
764 | msg_it->buf.packet_offset = 0; | |
44269abb | 765 | BT_COMP_LOGD("Adjusted buffer: addr=%p, size=%zu", |
3adcb386 | 766 | msg_it->buf.addr, msg_it->buf.sz); |
44269abb PP |
767 | } |
768 | ||
3adcb386 FD |
769 | msg_it->cur_exp_packet_content_size = -1; |
770 | msg_it->cur_exp_packet_total_size = -1; | |
771 | msg_it->cur_stream_class_id = -1; | |
772 | msg_it->cur_event_class_id = -1; | |
773 | msg_it->cur_data_stream_id = -1; | |
774 | msg_it->prev_packet_snapshots = msg_it->snapshots; | |
775 | msg_it->snapshots.discarded_events = UINT64_C(-1); | |
776 | msg_it->snapshots.packets = UINT64_C(-1); | |
777 | msg_it->snapshots.beginning_clock = UINT64_C(-1); | |
778 | msg_it->snapshots.end_clock = UINT64_C(-1); | |
779 | msg_it->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
44269abb | 780 | |
f6e68e70 | 781 | status = CTF_MSG_ITER_STATUS_OK; |
44269abb PP |
782 | end: |
783 | return status; | |
784 | } | |
785 | ||
e98a2d6e | 786 | static |
18a1979b SM |
787 | enum ctf_msg_iter_status read_packet_header_begin_state( |
788 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 789 | { |
5cd6d0e5 | 790 | struct ctf_field_class *packet_header_fc = NULL; |
3adcb386 | 791 | bt_self_component *self_comp = msg_it->self_comp; |
18a1979b | 792 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
e98a2d6e | 793 | |
fc917f65 PP |
794 | /* |
795 | * Make sure at least one bit is available for this packet. An | |
796 | * empty packet is impossible. If we reach the end of the medium | |
797 | * at this point, then it's considered the end of the stream. | |
798 | */ | |
3adcb386 | 799 | status = buf_ensure_available_bits(msg_it); |
3a246966 | 800 | switch (status) { |
18a1979b | 801 | case CTF_MSG_ITER_STATUS_OK: |
fc917f65 | 802 | break; |
18a1979b SM |
803 | case CTF_MSG_ITER_STATUS_EOF: |
804 | status = CTF_MSG_ITER_STATUS_OK; | |
1cda4ff4 | 805 | msg_it->state = STATE_CHECK_EMIT_MSG_STREAM_END; |
fc917f65 PP |
806 | goto end; |
807 | default: | |
808 | goto end; | |
809 | } | |
810 | ||
862ca4ed | 811 | /* Packet header class is common to the whole trace class. */ |
3adcb386 | 812 | packet_header_fc = msg_it->meta.tc->packet_header_fc; |
5cd6d0e5 | 813 | if (!packet_header_fc) { |
3adcb386 | 814 | msg_it->state = STATE_AFTER_TRACE_PACKET_HEADER; |
e98a2d6e PP |
815 | goto end; |
816 | } | |
817 | ||
3adcb386 FD |
818 | msg_it->cur_stream_class_id = -1; |
819 | msg_it->cur_event_class_id = -1; | |
820 | msg_it->cur_data_stream_id = -1; | |
82338bfd | 821 | BT_COMP_LOGD("Decoding packet header field: " |
3adcb386 FD |
822 | "msg-it-addr=%p, trace-class-addr=%p, fc-addr=%p", |
823 | msg_it, msg_it->meta.tc, packet_header_fc); | |
824 | status = read_dscope_begin_state(msg_it, packet_header_fc, | |
fdf0e7a0 | 825 | STATE_AFTER_TRACE_PACKET_HEADER, |
83ebb7f1 | 826 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, NULL); |
3a246966 | 827 | if (status < 0) { |
2246e99d FD |
828 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
829 | "Cannot decode packet header field: " | |
3adcb386 | 830 | "msg-it-addr=%p, trace-class-addr=%p, " |
862ca4ed | 831 | "fc-addr=%p", |
3adcb386 | 832 | msg_it, msg_it->meta.tc, packet_header_fc); |
fdf0e7a0 | 833 | } |
d1e46835 | 834 | |
e98a2d6e | 835 | end: |
3a246966 | 836 | return status; |
e98a2d6e PP |
837 | } |
838 | ||
839 | static | |
18a1979b SM |
840 | enum ctf_msg_iter_status read_packet_header_continue_state( |
841 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 842 | { |
3adcb386 | 843 | return read_dscope_continue_state(msg_it, |
44c440bc | 844 | STATE_AFTER_TRACE_PACKET_HEADER); |
5f870343 JG |
845 | } |
846 | ||
e98a2d6e | 847 | static inline |
18a1979b | 848 | enum ctf_msg_iter_status set_current_stream_class(struct ctf_msg_iter *msg_it) |
e98a2d6e | 849 | { |
18a1979b | 850 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 851 | bt_self_component *self_comp = msg_it->self_comp; |
44c440bc PP |
852 | struct ctf_stream_class *new_stream_class = NULL; |
853 | ||
3adcb386 | 854 | if (msg_it->cur_stream_class_id == -1) { |
fdf0e7a0 | 855 | /* |
44c440bc PP |
856 | * No current stream class ID field, therefore only one |
857 | * stream class. | |
fdf0e7a0 | 858 | */ |
3adcb386 | 859 | if (msg_it->meta.tc->stream_classes->len != 1) { |
2246e99d FD |
860 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
861 | "Need exactly one stream class since there's " | |
44c440bc | 862 | "no stream class ID field: " |
3adcb386 | 863 | "msg-it-addr=%p", msg_it); |
18a1979b | 864 | status = CTF_MSG_ITER_STATUS_ERROR; |
44c440bc PP |
865 | goto end; |
866 | } | |
e98a2d6e | 867 | |
3adcb386 FD |
868 | new_stream_class = msg_it->meta.tc->stream_classes->pdata[0]; |
869 | msg_it->cur_stream_class_id = new_stream_class->id; | |
e98a2d6e PP |
870 | } |
871 | ||
44c440bc | 872 | new_stream_class = ctf_trace_class_borrow_stream_class_by_id( |
3adcb386 | 873 | msg_it->meta.tc, msg_it->cur_stream_class_id); |
115de887 | 874 | if (!new_stream_class) { |
2246e99d FD |
875 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
876 | "No stream class with ID of stream class ID to use in trace class: " | |
3adcb386 | 877 | "msg-it-addr=%p, stream-class-id=%" PRIu64 ", " |
862ca4ed | 878 | "trace-class-addr=%p", |
3adcb386 | 879 | msg_it, msg_it->cur_stream_class_id, msg_it->meta.tc); |
18a1979b | 880 | status = CTF_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
881 | goto end; |
882 | } | |
883 | ||
3adcb386 FD |
884 | if (msg_it->meta.sc) { |
885 | if (new_stream_class != msg_it->meta.sc) { | |
2246e99d FD |
886 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
887 | "Two packets refer to two different stream classes within the same packet sequence: " | |
3adcb386 | 888 | "msg-it-addr=%p, prev-stream-class-addr=%p, " |
115de887 PP |
889 | "prev-stream-class-id=%" PRId64 ", " |
890 | "next-stream-class-addr=%p, " | |
115de887 | 891 | "next-stream-class-id=%" PRId64 ", " |
862ca4ed | 892 | "trace-addr=%p", |
3adcb386 FD |
893 | msg_it, msg_it->meta.sc, |
894 | msg_it->meta.sc->id, | |
115de887 | 895 | new_stream_class, |
44c440bc | 896 | new_stream_class->id, |
3adcb386 | 897 | msg_it->meta.tc); |
18a1979b | 898 | status = CTF_MSG_ITER_STATUS_ERROR; |
115de887 PP |
899 | goto end; |
900 | } | |
901 | } else { | |
3adcb386 | 902 | msg_it->meta.sc = new_stream_class; |
115de887 PP |
903 | } |
904 | ||
eb7f6c4f | 905 | BT_COMP_LOGD("Set current stream class: " |
3adcb386 | 906 | "msg-it-addr=%p, stream-class-addr=%p, " |
44c440bc | 907 | "stream-class-id=%" PRId64, |
3adcb386 | 908 | msg_it, msg_it->meta.sc, msg_it->meta.sc->id); |
d1e46835 | 909 | |
e98a2d6e | 910 | end: |
e98a2d6e PP |
911 | return status; |
912 | } | |
913 | ||
312c056a | 914 | static inline |
18a1979b | 915 | enum ctf_msg_iter_status set_current_stream(struct ctf_msg_iter *msg_it) |
312c056a | 916 | { |
18a1979b | 917 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 918 | bt_self_component *self_comp = msg_it->self_comp; |
b19ff26f | 919 | bt_stream *stream = NULL; |
312c056a | 920 | |
3adcb386 | 921 | BT_COMP_LOGD("Calling user function (get stream): msg-it-addr=%p, " |
44c440bc | 922 | "stream-class-addr=%p, stream-class-id=%" PRId64, |
3adcb386 FD |
923 | msg_it, msg_it->meta.sc, |
924 | msg_it->meta.sc->id); | |
925 | stream = msg_it->medium.medops.borrow_stream( | |
926 | msg_it->meta.sc->ir_sc, msg_it->cur_data_stream_id, | |
927 | msg_it->medium.data); | |
c5b9b441 | 928 | bt_stream_get_ref(stream); |
eb7f6c4f | 929 | BT_COMP_LOGD("User function returned: stream-addr=%p", stream); |
312c056a | 930 | if (!stream) { |
2246e99d FD |
931 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
932 | "User function failed to return a stream object for the given stream class."); | |
18a1979b | 933 | status = CTF_MSG_ITER_STATUS_ERROR; |
312c056a PP |
934 | goto end; |
935 | } | |
936 | ||
3adcb386 | 937 | if (msg_it->stream && stream != msg_it->stream) { |
2246e99d FD |
938 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
939 | "User function returned a different stream than the previous one for the same sequence of packets."); | |
18a1979b | 940 | status = CTF_MSG_ITER_STATUS_ERROR; |
312c056a PP |
941 | goto end; |
942 | } | |
943 | ||
3adcb386 | 944 | BT_STREAM_MOVE_REF(msg_it->stream, stream); |
312c056a PP |
945 | |
946 | end: | |
c5b9b441 | 947 | bt_stream_put_ref(stream); |
312c056a PP |
948 | return status; |
949 | } | |
950 | ||
951 | static inline | |
18a1979b | 952 | enum ctf_msg_iter_status set_current_packet(struct ctf_msg_iter *msg_it) |
312c056a | 953 | { |
18a1979b | 954 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 955 | bt_self_component *self_comp = msg_it->self_comp; |
b19ff26f | 956 | bt_packet *packet = NULL; |
312c056a | 957 | |
eb7f6c4f | 958 | BT_COMP_LOGD("Creating packet from stream: " |
3adcb386 | 959 | "msg-it-addr=%p, stream-addr=%p, " |
312c056a | 960 | "stream-class-addr=%p, " |
312c056a | 961 | "stream-class-id=%" PRId64, |
3adcb386 FD |
962 | msg_it, msg_it->stream, msg_it->meta.sc, |
963 | msg_it->meta.sc->id); | |
312c056a PP |
964 | |
965 | /* Create packet */ | |
3adcb386 FD |
966 | BT_ASSERT(msg_it->stream); |
967 | packet = bt_packet_create(msg_it->stream); | |
312c056a | 968 | if (!packet) { |
2246e99d FD |
969 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
970 | "Cannot create packet from stream: " | |
3adcb386 | 971 | "msg-it-addr=%p, stream-addr=%p, " |
312c056a | 972 | "stream-class-addr=%p, " |
312c056a | 973 | "stream-class-id=%" PRId64, |
3adcb386 FD |
974 | msg_it, msg_it->stream, msg_it->meta.sc, |
975 | msg_it->meta.sc->id); | |
312c056a PP |
976 | goto error; |
977 | } | |
978 | ||
979 | goto end; | |
980 | ||
981 | error: | |
c5b9b441 | 982 | BT_PACKET_PUT_REF_AND_RESET(packet); |
18a1979b | 983 | status = CTF_MSG_ITER_STATUS_ERROR; |
312c056a PP |
984 | |
985 | end: | |
3adcb386 | 986 | BT_PACKET_MOVE_REF(msg_it->packet, packet); |
312c056a PP |
987 | return status; |
988 | } | |
989 | ||
e98a2d6e | 990 | static |
18a1979b SM |
991 | enum ctf_msg_iter_status after_packet_header_state( |
992 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 993 | { |
18a1979b | 994 | enum ctf_msg_iter_status status; |
e98a2d6e | 995 | |
3adcb386 | 996 | status = set_current_stream_class(msg_it); |
18a1979b | 997 | if (status != CTF_MSG_ITER_STATUS_OK) { |
312c056a | 998 | goto end; |
e98a2d6e PP |
999 | } |
1000 | ||
bc0ae364 SM |
1001 | if (!msg_it->dry_run) { |
1002 | status = set_current_stream(msg_it); | |
1003 | if (status != CTF_MSG_ITER_STATUS_OK) { | |
1004 | goto end; | |
1005 | } | |
1006 | ||
1007 | status = set_current_packet(msg_it); | |
1008 | if (status != CTF_MSG_ITER_STATUS_OK) { | |
1009 | goto end; | |
1010 | } | |
1011 | } | |
1012 | ||
3adcb386 | 1013 | msg_it->state = STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN; |
312c056a | 1014 | |
bc0ae364 SM |
1015 | status = CTF_MSG_ITER_STATUS_OK; |
1016 | ||
312c056a | 1017 | end: |
e98a2d6e PP |
1018 | return status; |
1019 | } | |
1020 | ||
1021 | static | |
18a1979b SM |
1022 | enum ctf_msg_iter_status read_packet_context_begin_state( |
1023 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1024 | { |
18a1979b | 1025 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1026 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 1027 | struct ctf_field_class *packet_context_fc; |
e98a2d6e | 1028 | |
3adcb386 FD |
1029 | BT_ASSERT(msg_it->meta.sc); |
1030 | packet_context_fc = msg_it->meta.sc->packet_context_fc; | |
5cd6d0e5 | 1031 | if (!packet_context_fc) { |
eb7f6c4f | 1032 | BT_COMP_LOGD("No packet packet context field class in stream class: continuing: " |
3adcb386 | 1033 | "msg-it-addr=%p, stream-class-addr=%p, " |
44c440bc | 1034 | "stream-class-id=%" PRId64, |
3adcb386 FD |
1035 | msg_it, msg_it->meta.sc, |
1036 | msg_it->meta.sc->id); | |
1037 | msg_it->state = STATE_AFTER_STREAM_PACKET_CONTEXT; | |
e98a2d6e PP |
1038 | goto end; |
1039 | } | |
1040 | ||
3adcb386 | 1041 | if (packet_context_fc->in_ir && !msg_it->dry_run) { |
bc0ae364 SM |
1042 | BT_ASSERT(!msg_it->dscopes.stream_packet_context); |
1043 | BT_ASSERT(msg_it->packet); | |
3adcb386 | 1044 | msg_it->dscopes.stream_packet_context = |
bc0ae364 | 1045 | bt_packet_borrow_context_field(msg_it->packet); |
3adcb386 | 1046 | BT_ASSERT(msg_it->dscopes.stream_packet_context); |
312c056a PP |
1047 | } |
1048 | ||
eb7f6c4f | 1049 | BT_COMP_LOGD("Decoding packet context field: " |
3adcb386 | 1050 | "msg-it-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 1051 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
3adcb386 FD |
1052 | msg_it, msg_it->meta.sc, |
1053 | msg_it->meta.sc->id, packet_context_fc); | |
1054 | status = read_dscope_begin_state(msg_it, packet_context_fc, | |
fdf0e7a0 PP |
1055 | STATE_AFTER_STREAM_PACKET_CONTEXT, |
1056 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
3adcb386 | 1057 | msg_it->dscopes.stream_packet_context); |
fdf0e7a0 | 1058 | if (status < 0) { |
2246e99d FD |
1059 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1060 | "Cannot decode packet context field: " | |
3adcb386 | 1061 | "msg-it-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 1062 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
3adcb386 FD |
1063 | msg_it, msg_it->meta.sc, |
1064 | msg_it->meta.sc->id, | |
5cd6d0e5 | 1065 | packet_context_fc); |
fdf0e7a0 | 1066 | } |
e98a2d6e PP |
1067 | |
1068 | end: | |
e98a2d6e PP |
1069 | return status; |
1070 | } | |
1071 | ||
1072 | static | |
18a1979b SM |
1073 | enum ctf_msg_iter_status read_packet_context_continue_state( |
1074 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1075 | { |
3adcb386 | 1076 | return read_dscope_continue_state(msg_it, |
78586d8a | 1077 | STATE_AFTER_STREAM_PACKET_CONTEXT); |
e98a2d6e PP |
1078 | } |
1079 | ||
78586d8a | 1080 | static |
18a1979b SM |
1081 | enum ctf_msg_iter_status set_current_packet_content_sizes( |
1082 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1083 | { |
18a1979b | 1084 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1085 | bt_self_component *self_comp = msg_it->self_comp; |
e98a2d6e | 1086 | |
3adcb386 FD |
1087 | if (msg_it->cur_exp_packet_total_size == -1) { |
1088 | if (msg_it->cur_exp_packet_content_size != -1) { | |
1089 | msg_it->cur_exp_packet_total_size = | |
1090 | msg_it->cur_exp_packet_content_size; | |
e98a2d6e | 1091 | } |
e98a2d6e | 1092 | } else { |
3adcb386 FD |
1093 | if (msg_it->cur_exp_packet_content_size == -1) { |
1094 | msg_it->cur_exp_packet_content_size = | |
1095 | msg_it->cur_exp_packet_total_size; | |
44c440bc | 1096 | } |
e98a2d6e PP |
1097 | } |
1098 | ||
3adcb386 FD |
1099 | BT_ASSERT((msg_it->cur_exp_packet_total_size >= 0 && |
1100 | msg_it->cur_exp_packet_content_size >= 0) || | |
1101 | (msg_it->cur_exp_packet_total_size < 0 && | |
1102 | msg_it->cur_exp_packet_content_size < 0)); | |
01f71e30 | 1103 | |
3adcb386 FD |
1104 | if (msg_it->cur_exp_packet_content_size > |
1105 | msg_it->cur_exp_packet_total_size) { | |
2246e99d FD |
1106 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1107 | "Invalid packet or content size: " | |
44c440bc | 1108 | "content size is greater than packet size: " |
3adcb386 | 1109 | "msg-it-addr=%p, packet-context-field-addr=%p, " |
44c440bc | 1110 | "packet-size=%" PRId64 ", content-size=%" PRId64, |
3adcb386 FD |
1111 | msg_it, msg_it->dscopes.stream_packet_context, |
1112 | msg_it->cur_exp_packet_total_size, | |
1113 | msg_it->cur_exp_packet_content_size); | |
18a1979b | 1114 | status = CTF_MSG_ITER_STATUS_ERROR; |
fdf0e7a0 PP |
1115 | goto end; |
1116 | } | |
1117 | ||
eb7f6c4f | 1118 | BT_COMP_LOGD("Set current packet and content sizes: " |
3adcb386 FD |
1119 | "msg-it-addr=%p, packet-size=%" PRIu64 ", content-size=%" PRIu64, |
1120 | msg_it, msg_it->cur_exp_packet_total_size, | |
1121 | msg_it->cur_exp_packet_content_size); | |
fc917f65 | 1122 | |
e98a2d6e | 1123 | end: |
e98a2d6e PP |
1124 | return status; |
1125 | } | |
1126 | ||
1127 | static | |
18a1979b | 1128 | enum ctf_msg_iter_status after_packet_context_state(struct ctf_msg_iter *msg_it) |
e98a2d6e | 1129 | { |
18a1979b | 1130 | enum ctf_msg_iter_status status; |
e98a2d6e | 1131 | |
3adcb386 | 1132 | status = set_current_packet_content_sizes(msg_it); |
18a1979b | 1133 | if (status != CTF_MSG_ITER_STATUS_OK) { |
e22b45d0 PP |
1134 | goto end; |
1135 | } | |
1136 | ||
bc0ae364 | 1137 | if (msg_it->emit_stream_beginning_message) { |
ed4ddc26 | 1138 | msg_it->state = STATE_EMIT_MSG_STREAM_BEGINNING; |
bc0ae364 SM |
1139 | } else { |
1140 | msg_it->state = STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS; | |
e98a2d6e PP |
1141 | } |
1142 | ||
e22b45d0 | 1143 | end: |
e98a2d6e PP |
1144 | return status; |
1145 | } | |
1146 | ||
1147 | static | |
18a1979b | 1148 | enum ctf_msg_iter_status read_event_header_begin_state(struct ctf_msg_iter *msg_it) |
e98a2d6e | 1149 | { |
18a1979b | 1150 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1151 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 1152 | struct ctf_field_class *event_header_fc = NULL; |
e98a2d6e | 1153 | |
174e773b | 1154 | /* Reset the position of the last event header */ |
3adcb386 FD |
1155 | msg_it->buf.last_eh_at = msg_it->buf.at; |
1156 | msg_it->cur_event_class_id = -1; | |
174e773b | 1157 | |
e98a2d6e | 1158 | /* Check if we have some content left */ |
3adcb386 FD |
1159 | if (msg_it->cur_exp_packet_content_size >= 0) { |
1160 | if (G_UNLIKELY(packet_at(msg_it) == | |
1161 | msg_it->cur_exp_packet_content_size)) { | |
e98a2d6e | 1162 | /* No more events! */ |
3adcb386 FD |
1163 | BT_COMP_LOGD("Reached end of packet: msg-it-addr=%p, " |
1164 | "cur=%zu", msg_it, packet_at(msg_it)); | |
1165 | msg_it->state = STATE_EMIT_MSG_PACKET_END_MULTI; | |
e98a2d6e | 1166 | goto end; |
3adcb386 FD |
1167 | } else if (G_UNLIKELY(packet_at(msg_it) > |
1168 | msg_it->cur_exp_packet_content_size)) { | |
e98a2d6e | 1169 | /* That's not supposed to happen */ |
eb7f6c4f | 1170 | BT_COMP_LOGD("Before decoding event header field: cursor is passed the packet's content: " |
3adcb386 FD |
1171 | "msg-it-addr=%p, content-size=%" PRId64 ", " |
1172 | "cur=%zu", msg_it, | |
1173 | msg_it->cur_exp_packet_content_size, | |
1174 | packet_at(msg_it)); | |
18a1979b | 1175 | status = CTF_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
1176 | goto end; |
1177 | } | |
44c440bc PP |
1178 | } else { |
1179 | /* | |
1180 | * "Infinite" content: we're done when the medium has | |
1181 | * nothing else for us. | |
1182 | */ | |
3adcb386 | 1183 | status = buf_ensure_available_bits(msg_it); |
fc917f65 | 1184 | switch (status) { |
18a1979b | 1185 | case CTF_MSG_ITER_STATUS_OK: |
fc917f65 | 1186 | break; |
18a1979b SM |
1187 | case CTF_MSG_ITER_STATUS_EOF: |
1188 | status = CTF_MSG_ITER_STATUS_OK; | |
3adcb386 | 1189 | msg_it->state = STATE_EMIT_MSG_PACKET_END_SINGLE; |
fc917f65 PP |
1190 | goto end; |
1191 | default: | |
44c440bc PP |
1192 | goto end; |
1193 | } | |
e98a2d6e PP |
1194 | } |
1195 | ||
3adcb386 FD |
1196 | release_event_dscopes(msg_it); |
1197 | BT_ASSERT(msg_it->meta.sc); | |
1198 | event_header_fc = msg_it->meta.sc->event_header_fc; | |
5cd6d0e5 | 1199 | if (!event_header_fc) { |
3adcb386 | 1200 | msg_it->state = STATE_AFTER_EVENT_HEADER; |
e98a2d6e PP |
1201 | goto end; |
1202 | } | |
1203 | ||
eb7f6c4f | 1204 | BT_COMP_LOGD("Decoding event header field: " |
3adcb386 | 1205 | "msg-it-addr=%p, stream-class-addr=%p, " |
44c440bc | 1206 | "stream-class-id=%" PRId64 ", " |
5cd6d0e5 | 1207 | "fc-addr=%p", |
3adcb386 FD |
1208 | msg_it, msg_it->meta.sc, |
1209 | msg_it->meta.sc->id, | |
5cd6d0e5 | 1210 | event_header_fc); |
3adcb386 | 1211 | status = read_dscope_begin_state(msg_it, event_header_fc, |
44c440bc | 1212 | STATE_AFTER_EVENT_HEADER, |
83ebb7f1 | 1213 | STATE_DSCOPE_EVENT_HEADER_CONTINUE, NULL); |
fdf0e7a0 | 1214 | if (status < 0) { |
2246e99d FD |
1215 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1216 | "Cannot decode event header field: " | |
3adcb386 | 1217 | "msg-it-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 1218 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
3adcb386 FD |
1219 | msg_it, msg_it->meta.sc, |
1220 | msg_it->meta.sc->id, | |
5cd6d0e5 | 1221 | event_header_fc); |
fdf0e7a0 | 1222 | } |
e98a2d6e | 1223 | |
d1e46835 | 1224 | end: |
e98a2d6e PP |
1225 | return status; |
1226 | } | |
1227 | ||
1228 | static | |
18a1979b SM |
1229 | enum ctf_msg_iter_status read_event_header_continue_state( |
1230 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1231 | { |
3adcb386 | 1232 | return read_dscope_continue_state(msg_it, |
44c440bc | 1233 | STATE_AFTER_EVENT_HEADER); |
e98a2d6e PP |
1234 | } |
1235 | ||
1236 | static inline | |
18a1979b | 1237 | enum ctf_msg_iter_status set_current_event_class(struct ctf_msg_iter *msg_it) |
e98a2d6e | 1238 | { |
18a1979b | 1239 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1240 | bt_self_component *self_comp = msg_it->self_comp; |
e98a2d6e | 1241 | |
44c440bc | 1242 | struct ctf_event_class *new_event_class = NULL; |
e98a2d6e | 1243 | |
3adcb386 | 1244 | if (msg_it->cur_event_class_id == -1) { |
e98a2d6e | 1245 | /* |
44c440bc PP |
1246 | * No current event class ID field, therefore only one |
1247 | * event class. | |
e98a2d6e | 1248 | */ |
3adcb386 | 1249 | if (msg_it->meta.sc->event_classes->len != 1) { |
2246e99d FD |
1250 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1251 | "Need exactly one event class since there's no event class ID field: " | |
3adcb386 | 1252 | "msg-it-addr=%p", msg_it); |
18a1979b | 1253 | status = CTF_MSG_ITER_STATUS_ERROR; |
44c440bc | 1254 | goto end; |
fdf0e7a0 | 1255 | } |
e98a2d6e | 1256 | |
3adcb386 FD |
1257 | new_event_class = msg_it->meta.sc->event_classes->pdata[0]; |
1258 | msg_it->cur_event_class_id = new_event_class->id; | |
e98a2d6e PP |
1259 | } |
1260 | ||
44c440bc | 1261 | new_event_class = ctf_stream_class_borrow_event_class_by_id( |
3adcb386 | 1262 | msg_it->meta.sc, msg_it->cur_event_class_id); |
44c440bc | 1263 | if (!new_event_class) { |
2246e99d FD |
1264 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1265 | "No event class with ID of event class ID to use in stream class: " | |
3adcb386 | 1266 | "msg-it-addr=%p, stream-class-id=%" PRIu64 ", " |
44c440bc | 1267 | "event-class-id=%" PRIu64 ", " |
862ca4ed | 1268 | "trace-class-addr=%p", |
3adcb386 FD |
1269 | msg_it, msg_it->meta.sc->id, msg_it->cur_event_class_id, |
1270 | msg_it->meta.tc); | |
18a1979b | 1271 | status = CTF_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
1272 | goto end; |
1273 | } | |
1274 | ||
3adcb386 | 1275 | msg_it->meta.ec = new_event_class; |
eb7f6c4f | 1276 | BT_COMP_LOGD("Set current event class: " |
3adcb386 | 1277 | "msg-it-addr=%p, event-class-addr=%p, " |
44c440bc PP |
1278 | "event-class-id=%" PRId64 ", " |
1279 | "event-class-name=\"%s\"", | |
3adcb386 FD |
1280 | msg_it, msg_it->meta.ec, msg_it->meta.ec->id, |
1281 | msg_it->meta.ec->name->str); | |
fdf0e7a0 | 1282 | |
e98a2d6e | 1283 | end: |
e98a2d6e PP |
1284 | return status; |
1285 | } | |
1286 | ||
312c056a | 1287 | static inline |
18a1979b SM |
1288 | enum ctf_msg_iter_status set_current_event_message( |
1289 | struct ctf_msg_iter *msg_it) | |
312c056a | 1290 | { |
18a1979b | 1291 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1292 | bt_self_component *self_comp = msg_it->self_comp; |
d6e69534 | 1293 | bt_message *msg = NULL; |
312c056a | 1294 | |
3adcb386 FD |
1295 | BT_ASSERT_DBG(msg_it->meta.ec); |
1296 | BT_ASSERT_DBG(msg_it->packet); | |
eb7f6c4f | 1297 | BT_COMP_LOGD("Creating event message from event class and packet: " |
3adcb386 FD |
1298 | "msg-it-addr=%p, ec-addr=%p, ec-name=\"%s\", packet-addr=%p", |
1299 | msg_it, msg_it->meta.ec, | |
1300 | msg_it->meta.ec->name->str, | |
1301 | msg_it->packet); | |
e5d25da2 | 1302 | BT_ASSERT_DBG(msg_it->self_msg_iter); |
3adcb386 FD |
1303 | BT_ASSERT_DBG(msg_it->meta.sc); |
1304 | ||
1305 | if (bt_stream_class_borrow_default_clock_class(msg_it->meta.sc->ir_sc)) { | |
26fc5aed | 1306 | msg = bt_message_event_create_with_packet_and_default_clock_snapshot( |
e5d25da2 | 1307 | msg_it->self_msg_iter, msg_it->meta.ec->ir_ec, |
3adcb386 | 1308 | msg_it->packet, msg_it->default_clock_snapshot); |
2c091c04 | 1309 | } else { |
e5d25da2 | 1310 | msg = bt_message_event_create_with_packet(msg_it->self_msg_iter, |
3adcb386 | 1311 | msg_it->meta.ec->ir_ec, msg_it->packet); |
2c091c04 PP |
1312 | } |
1313 | ||
d6e69534 | 1314 | if (!msg) { |
2246e99d FD |
1315 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1316 | "Cannot create event message: " | |
3adcb386 | 1317 | "msg-it-addr=%p, ec-addr=%p, ec-name=\"%s\", " |
312c056a | 1318 | "packet-addr=%p", |
3adcb386 FD |
1319 | msg_it, msg_it->meta.ec, |
1320 | msg_it->meta.ec->name->str, | |
1321 | msg_it->packet); | |
312c056a PP |
1322 | goto error; |
1323 | } | |
1324 | ||
1325 | goto end; | |
1326 | ||
1327 | error: | |
d6e69534 | 1328 | BT_MESSAGE_PUT_REF_AND_RESET(msg); |
18a1979b | 1329 | status = CTF_MSG_ITER_STATUS_ERROR; |
312c056a PP |
1330 | |
1331 | end: | |
3adcb386 | 1332 | BT_MESSAGE_MOVE_REF(msg_it->event_msg, msg); |
312c056a PP |
1333 | return status; |
1334 | } | |
1335 | ||
e98a2d6e | 1336 | static |
18a1979b SM |
1337 | enum ctf_msg_iter_status after_event_header_state( |
1338 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1339 | { |
18a1979b | 1340 | enum ctf_msg_iter_status status; |
e98a2d6e | 1341 | |
3adcb386 | 1342 | status = set_current_event_class(msg_it); |
18a1979b | 1343 | if (status != CTF_MSG_ITER_STATUS_OK) { |
e98a2d6e PP |
1344 | goto end; |
1345 | } | |
1346 | ||
3adcb386 | 1347 | if (G_UNLIKELY(msg_it->dry_run)) { |
de24a43f FD |
1348 | goto next_state; |
1349 | } | |
1350 | ||
3adcb386 | 1351 | status = set_current_event_message(msg_it); |
18a1979b | 1352 | if (status != CTF_MSG_ITER_STATUS_OK) { |
312c056a PP |
1353 | goto end; |
1354 | } | |
1355 | ||
3adcb386 FD |
1356 | msg_it->event = bt_message_event_borrow_event( |
1357 | msg_it->event_msg); | |
1358 | BT_ASSERT_DBG(msg_it->event); | |
de24a43f FD |
1359 | |
1360 | next_state: | |
3adcb386 | 1361 | msg_it->state = STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN; |
e98a2d6e PP |
1362 | |
1363 | end: | |
1364 | return status; | |
1365 | } | |
1366 | ||
1367 | static | |
18a1979b SM |
1368 | enum ctf_msg_iter_status read_event_common_context_begin_state( |
1369 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1370 | { |
18a1979b | 1371 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1372 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 1373 | struct ctf_field_class *event_common_context_fc; |
e98a2d6e | 1374 | |
3adcb386 | 1375 | event_common_context_fc = msg_it->meta.sc->event_common_context_fc; |
5cd6d0e5 | 1376 | if (!event_common_context_fc) { |
3adcb386 | 1377 | msg_it->state = STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN; |
e98a2d6e PP |
1378 | goto end; |
1379 | } | |
1380 | ||
3adcb386 FD |
1381 | if (event_common_context_fc->in_ir && !msg_it->dry_run) { |
1382 | BT_ASSERT_DBG(!msg_it->dscopes.event_common_context); | |
1383 | msg_it->dscopes.event_common_context = | |
40f4ba76 | 1384 | bt_event_borrow_common_context_field( |
3adcb386 FD |
1385 | msg_it->event); |
1386 | BT_ASSERT_DBG(msg_it->dscopes.event_common_context); | |
44c440bc PP |
1387 | } |
1388 | ||
ef267d12 | 1389 | BT_COMP_LOGT("Decoding event common context field: " |
3adcb386 | 1390 | "msg-it-addr=%p, stream-class-addr=%p, " |
44c440bc | 1391 | "stream-class-id=%" PRId64 ", " |
5cd6d0e5 | 1392 | "fc-addr=%p", |
3adcb386 FD |
1393 | msg_it, msg_it->meta.sc, |
1394 | msg_it->meta.sc->id, | |
5cd6d0e5 | 1395 | event_common_context_fc); |
3adcb386 | 1396 | status = read_dscope_begin_state(msg_it, event_common_context_fc, |
44c440bc PP |
1397 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN, |
1398 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE, | |
3adcb386 | 1399 | msg_it->dscopes.event_common_context); |
fdf0e7a0 | 1400 | if (status < 0) { |
2246e99d FD |
1401 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1402 | "Cannot decode event common context field: " | |
3adcb386 | 1403 | "msg-it-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 1404 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
3adcb386 FD |
1405 | msg_it, msg_it->meta.sc, |
1406 | msg_it->meta.sc->id, | |
5cd6d0e5 | 1407 | event_common_context_fc); |
fdf0e7a0 | 1408 | } |
e98a2d6e PP |
1409 | |
1410 | end: | |
e98a2d6e PP |
1411 | return status; |
1412 | } | |
1413 | ||
1414 | static | |
18a1979b SM |
1415 | enum ctf_msg_iter_status read_event_common_context_continue_state( |
1416 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1417 | { |
3adcb386 | 1418 | return read_dscope_continue_state(msg_it, |
44c440bc | 1419 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN); |
e98a2d6e PP |
1420 | } |
1421 | ||
1422 | static | |
18a1979b SM |
1423 | enum ctf_msg_iter_status read_event_spec_context_begin_state( |
1424 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1425 | { |
18a1979b | 1426 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1427 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 1428 | struct ctf_field_class *event_spec_context_fc; |
e98a2d6e | 1429 | |
3adcb386 | 1430 | event_spec_context_fc = msg_it->meta.ec->spec_context_fc; |
5cd6d0e5 | 1431 | if (!event_spec_context_fc) { |
3adcb386 | 1432 | msg_it->state = STATE_DSCOPE_EVENT_PAYLOAD_BEGIN; |
e98a2d6e PP |
1433 | goto end; |
1434 | } | |
fdf0e7a0 | 1435 | |
3adcb386 FD |
1436 | if (event_spec_context_fc->in_ir && !msg_it->dry_run) { |
1437 | BT_ASSERT_DBG(!msg_it->dscopes.event_spec_context); | |
1438 | msg_it->dscopes.event_spec_context = | |
40f4ba76 | 1439 | bt_event_borrow_specific_context_field( |
3adcb386 FD |
1440 | msg_it->event); |
1441 | BT_ASSERT_DBG(msg_it->dscopes.event_spec_context); | |
44c440bc PP |
1442 | } |
1443 | ||
ef267d12 | 1444 | BT_COMP_LOGT("Decoding event specific context field: " |
3adcb386 | 1445 | "msg-it-addr=%p, event-class-addr=%p, " |
fdf0e7a0 | 1446 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " |
5cd6d0e5 | 1447 | "fc-addr=%p", |
3adcb386 FD |
1448 | msg_it, msg_it->meta.ec, |
1449 | msg_it->meta.ec->name->str, | |
1450 | msg_it->meta.ec->id, | |
5cd6d0e5 | 1451 | event_spec_context_fc); |
3adcb386 | 1452 | status = read_dscope_begin_state(msg_it, event_spec_context_fc, |
e98a2d6e | 1453 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, |
44c440bc | 1454 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE, |
3adcb386 | 1455 | msg_it->dscopes.event_spec_context); |
fdf0e7a0 | 1456 | if (status < 0) { |
2246e99d FD |
1457 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1458 | "Cannot decode event specific context field: " | |
3adcb386 | 1459 | "msg-it-addr=%p, event-class-addr=%p, " |
fdf0e7a0 | 1460 | "event-class-name=\"%s\", " |
5cd6d0e5 | 1461 | "event-class-id=%" PRId64 ", fc-addr=%p", |
3adcb386 FD |
1462 | msg_it, msg_it->meta.ec, |
1463 | msg_it->meta.ec->name->str, | |
1464 | msg_it->meta.ec->id, | |
5cd6d0e5 | 1465 | event_spec_context_fc); |
fdf0e7a0 | 1466 | } |
e98a2d6e PP |
1467 | |
1468 | end: | |
e98a2d6e PP |
1469 | return status; |
1470 | } | |
1471 | ||
1472 | static | |
18a1979b SM |
1473 | enum ctf_msg_iter_status read_event_spec_context_continue_state( |
1474 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1475 | { |
3adcb386 | 1476 | return read_dscope_continue_state(msg_it, |
e98a2d6e PP |
1477 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN); |
1478 | } | |
1479 | ||
1480 | static | |
18a1979b SM |
1481 | enum ctf_msg_iter_status read_event_payload_begin_state( |
1482 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1483 | { |
18a1979b | 1484 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1485 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 1486 | struct ctf_field_class *event_payload_fc; |
e98a2d6e | 1487 | |
3adcb386 | 1488 | event_payload_fc = msg_it->meta.ec->payload_fc; |
5cd6d0e5 | 1489 | if (!event_payload_fc) { |
3adcb386 | 1490 | msg_it->state = STATE_EMIT_MSG_EVENT; |
e98a2d6e PP |
1491 | goto end; |
1492 | } | |
1493 | ||
3adcb386 FD |
1494 | if (event_payload_fc->in_ir && !msg_it->dry_run) { |
1495 | BT_ASSERT_DBG(!msg_it->dscopes.event_payload); | |
1496 | msg_it->dscopes.event_payload = | |
40f4ba76 | 1497 | bt_event_borrow_payload_field( |
3adcb386 FD |
1498 | msg_it->event); |
1499 | BT_ASSERT_DBG(msg_it->dscopes.event_payload); | |
44c440bc PP |
1500 | } |
1501 | ||
ef267d12 | 1502 | BT_COMP_LOGT("Decoding event payload field: " |
3adcb386 | 1503 | "msg-it-addr=%p, event-class-addr=%p, " |
fdf0e7a0 | 1504 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " |
5cd6d0e5 | 1505 | "fc-addr=%p", |
3adcb386 FD |
1506 | msg_it, msg_it->meta.ec, |
1507 | msg_it->meta.ec->name->str, | |
1508 | msg_it->meta.ec->id, | |
5cd6d0e5 | 1509 | event_payload_fc); |
3adcb386 | 1510 | status = read_dscope_begin_state(msg_it, event_payload_fc, |
d6e69534 | 1511 | STATE_EMIT_MSG_EVENT, |
e98a2d6e | 1512 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, |
3adcb386 | 1513 | msg_it->dscopes.event_payload); |
fdf0e7a0 | 1514 | if (status < 0) { |
2246e99d FD |
1515 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1516 | "Cannot decode event payload field: " | |
3adcb386 | 1517 | "msg-it-addr=%p, event-class-addr=%p, " |
fdf0e7a0 | 1518 | "event-class-name=\"%s\", " |
5cd6d0e5 | 1519 | "event-class-id=%" PRId64 ", fc-addr=%p", |
3adcb386 FD |
1520 | msg_it, msg_it->meta.ec, |
1521 | msg_it->meta.ec->name->str, | |
1522 | msg_it->meta.ec->id, | |
5cd6d0e5 | 1523 | event_payload_fc); |
fdf0e7a0 | 1524 | } |
e98a2d6e PP |
1525 | |
1526 | end: | |
e98a2d6e PP |
1527 | return status; |
1528 | } | |
1529 | ||
1530 | static | |
18a1979b SM |
1531 | enum ctf_msg_iter_status read_event_payload_continue_state( |
1532 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1533 | { |
3adcb386 | 1534 | return read_dscope_continue_state(msg_it, STATE_EMIT_MSG_EVENT); |
e98a2d6e PP |
1535 | } |
1536 | ||
1537 | static | |
18a1979b | 1538 | enum ctf_msg_iter_status skip_packet_padding_state(struct ctf_msg_iter *msg_it) |
e98a2d6e | 1539 | { |
18a1979b | 1540 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
e98a2d6e | 1541 | size_t bits_to_skip; |
44269abb | 1542 | const enum state next_state = STATE_SWITCH_PACKET; |
e98a2d6e | 1543 | |
3adcb386 FD |
1544 | BT_ASSERT(msg_it->cur_exp_packet_total_size > 0); |
1545 | bits_to_skip = msg_it->cur_exp_packet_total_size - packet_at(msg_it); | |
e98a2d6e | 1546 | if (bits_to_skip == 0) { |
3adcb386 | 1547 | msg_it->state = next_state; |
e98a2d6e PP |
1548 | goto end; |
1549 | } else { | |
1550 | size_t bits_to_consume; | |
fdf0e7a0 | 1551 | |
3adcb386 FD |
1552 | BT_COMP_LOGD("Trying to skip %zu bits of padding: msg-it-addr=%p, size=%zu", |
1553 | bits_to_skip, msg_it, bits_to_skip); | |
1554 | status = buf_ensure_available_bits(msg_it); | |
18a1979b | 1555 | if (status != CTF_MSG_ITER_STATUS_OK) { |
e98a2d6e PP |
1556 | goto end; |
1557 | } | |
1558 | ||
3adcb386 FD |
1559 | bits_to_consume = MIN(buf_available_bits(msg_it), bits_to_skip); |
1560 | BT_COMP_LOGD("Skipping %zu bits of padding: msg-it-addr=%p, size=%zu", | |
1561 | bits_to_consume, msg_it, bits_to_consume); | |
1562 | buf_consume_bits(msg_it, bits_to_consume); | |
1563 | bits_to_skip = msg_it->cur_exp_packet_total_size - | |
1564 | packet_at(msg_it); | |
e98a2d6e | 1565 | if (bits_to_skip == 0) { |
3adcb386 | 1566 | msg_it->state = next_state; |
e98a2d6e PP |
1567 | goto end; |
1568 | } | |
1569 | } | |
1570 | ||
1571 | end: | |
1572 | return status; | |
1573 | } | |
1574 | ||
495490c5 | 1575 | static |
18a1979b SM |
1576 | enum ctf_msg_iter_status check_emit_msg_discarded_events( |
1577 | struct ctf_msg_iter *msg_it) | |
495490c5 | 1578 | { |
3adcb386 | 1579 | msg_it->state = STATE_EMIT_MSG_DISCARDED_EVENTS; |
495490c5 | 1580 | |
3adcb386 FD |
1581 | if (!msg_it->meta.sc->has_discarded_events) { |
1582 | msg_it->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; | |
afd45274 PP |
1583 | goto end; |
1584 | } | |
1585 | ||
3adcb386 FD |
1586 | if (msg_it->prev_packet_snapshots.discarded_events == UINT64_C(-1)) { |
1587 | if (msg_it->snapshots.discarded_events == 0 || | |
1588 | msg_it->snapshots.discarded_events == UINT64_C(-1)) { | |
495490c5 PP |
1589 | /* |
1590 | * Stream's first packet with no discarded | |
1591 | * events or no information about discarded | |
1592 | * events: do not emit. | |
1593 | */ | |
3adcb386 | 1594 | msg_it->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; |
495490c5 PP |
1595 | } |
1596 | } else { | |
1597 | /* | |
1598 | * If the previous packet has a value for this counter, | |
1599 | * then this counter is defined for the whole stream. | |
1600 | */ | |
3adcb386 | 1601 | BT_ASSERT(msg_it->snapshots.discarded_events != UINT64_C(-1)); |
495490c5 | 1602 | |
3adcb386 FD |
1603 | if (msg_it->snapshots.discarded_events - |
1604 | msg_it->prev_packet_snapshots.discarded_events == 0) { | |
495490c5 PP |
1605 | /* |
1606 | * No discarded events since previous packet: do | |
1607 | * not emit. | |
1608 | */ | |
3adcb386 | 1609 | msg_it->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; |
495490c5 PP |
1610 | } |
1611 | } | |
1612 | ||
afd45274 | 1613 | end: |
18a1979b | 1614 | return CTF_MSG_ITER_STATUS_OK; |
495490c5 PP |
1615 | } |
1616 | ||
1617 | static | |
18a1979b SM |
1618 | enum ctf_msg_iter_status check_emit_msg_discarded_packets( |
1619 | struct ctf_msg_iter *msg_it) | |
495490c5 | 1620 | { |
3adcb386 | 1621 | msg_it->state = STATE_EMIT_MSG_DISCARDED_PACKETS; |
495490c5 | 1622 | |
3adcb386 FD |
1623 | if (!msg_it->meta.sc->has_discarded_packets) { |
1624 | msg_it->state = STATE_EMIT_MSG_PACKET_BEGINNING; | |
afd45274 PP |
1625 | goto end; |
1626 | } | |
1627 | ||
3adcb386 | 1628 | if (msg_it->prev_packet_snapshots.packets == UINT64_C(-1)) { |
495490c5 PP |
1629 | /* |
1630 | * Stream's first packet or no information about | |
1631 | * discarded packets: do not emit. In other words, if | |
1632 | * this is the first packet and its sequence number is | |
1633 | * not 0, do not consider that packets were previously | |
1634 | * lost: we might be reading a partial stream (LTTng | |
1635 | * snapshot for example). | |
1636 | */ | |
3adcb386 | 1637 | msg_it->state = STATE_EMIT_MSG_PACKET_BEGINNING; |
495490c5 PP |
1638 | } else { |
1639 | /* | |
1640 | * If the previous packet has a value for this counter, | |
1641 | * then this counter is defined for the whole stream. | |
1642 | */ | |
3adcb386 | 1643 | BT_ASSERT(msg_it->snapshots.packets != UINT64_C(-1)); |
495490c5 | 1644 | |
3adcb386 FD |
1645 | if (msg_it->snapshots.packets - |
1646 | msg_it->prev_packet_snapshots.packets <= 1) { | |
495490c5 PP |
1647 | /* |
1648 | * No discarded packets since previous packet: | |
1649 | * do not emit. | |
1650 | */ | |
3adcb386 | 1651 | msg_it->state = STATE_EMIT_MSG_PACKET_BEGINNING; |
495490c5 PP |
1652 | } |
1653 | } | |
1654 | ||
afd45274 | 1655 | end: |
18a1979b | 1656 | return CTF_MSG_ITER_STATUS_OK; |
495490c5 PP |
1657 | } |
1658 | ||
1cda4ff4 FD |
1659 | static inline |
1660 | enum state check_emit_msg_stream_end(struct ctf_msg_iter *msg_it) | |
1661 | { | |
1662 | enum state next_state; | |
1663 | ||
1664 | if (msg_it->emit_stream_end_message) { | |
1665 | next_state = STATE_EMIT_MSG_STREAM_END; | |
1666 | } else { | |
1667 | next_state = STATE_DONE; | |
1668 | } | |
1669 | ||
1670 | return next_state; | |
1671 | } | |
1672 | ||
e98a2d6e | 1673 | static inline |
18a1979b | 1674 | enum ctf_msg_iter_status handle_state(struct ctf_msg_iter *msg_it) |
e98a2d6e | 1675 | { |
18a1979b | 1676 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1677 | const enum state state = msg_it->state; |
e98a2d6e | 1678 | |
3adcb386 FD |
1679 | BT_COMP_LOGT("Handling state: msg-it-addr=%p, state=%s", |
1680 | msg_it, state_string(state)); | |
e98a2d6e PP |
1681 | |
1682 | // TODO: optimalize! | |
fdf0e7a0 | 1683 | switch (state) { |
e98a2d6e | 1684 | case STATE_INIT: |
3adcb386 | 1685 | msg_it->state = STATE_SWITCH_PACKET; |
44269abb PP |
1686 | break; |
1687 | case STATE_SWITCH_PACKET: | |
3adcb386 | 1688 | status = switch_packet_state(msg_it); |
e98a2d6e PP |
1689 | break; |
1690 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
3adcb386 | 1691 | status = read_packet_header_begin_state(msg_it); |
e98a2d6e PP |
1692 | break; |
1693 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
3adcb386 | 1694 | status = read_packet_header_continue_state(msg_it); |
e98a2d6e PP |
1695 | break; |
1696 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
3adcb386 | 1697 | status = after_packet_header_state(msg_it); |
e98a2d6e PP |
1698 | break; |
1699 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
3adcb386 | 1700 | status = read_packet_context_begin_state(msg_it); |
e98a2d6e PP |
1701 | break; |
1702 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
3adcb386 | 1703 | status = read_packet_context_continue_state(msg_it); |
e98a2d6e PP |
1704 | break; |
1705 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
3adcb386 | 1706 | status = after_packet_context_state(msg_it); |
e98a2d6e | 1707 | break; |
fc917f65 | 1708 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
3adcb386 | 1709 | msg_it->state = STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS; |
495490c5 PP |
1710 | break; |
1711 | case STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS: | |
3adcb386 | 1712 | status = check_emit_msg_discarded_events(msg_it); |
495490c5 PP |
1713 | break; |
1714 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
3adcb386 | 1715 | msg_it->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; |
495490c5 PP |
1716 | break; |
1717 | case STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS: | |
3adcb386 | 1718 | status = check_emit_msg_discarded_packets(msg_it); |
495490c5 PP |
1719 | break; |
1720 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
3adcb386 | 1721 | msg_it->state = STATE_EMIT_MSG_PACKET_BEGINNING; |
f42867e2 | 1722 | break; |
fc917f65 | 1723 | case STATE_EMIT_MSG_PACKET_BEGINNING: |
3adcb386 | 1724 | msg_it->state = STATE_DSCOPE_EVENT_HEADER_BEGIN; |
e98a2d6e | 1725 | break; |
44c440bc | 1726 | case STATE_DSCOPE_EVENT_HEADER_BEGIN: |
3adcb386 | 1727 | status = read_event_header_begin_state(msg_it); |
e98a2d6e | 1728 | break; |
44c440bc | 1729 | case STATE_DSCOPE_EVENT_HEADER_CONTINUE: |
3adcb386 | 1730 | status = read_event_header_continue_state(msg_it); |
e98a2d6e | 1731 | break; |
44c440bc | 1732 | case STATE_AFTER_EVENT_HEADER: |
3adcb386 | 1733 | status = after_event_header_state(msg_it); |
e98a2d6e | 1734 | break; |
44c440bc | 1735 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN: |
3adcb386 | 1736 | status = read_event_common_context_begin_state(msg_it); |
e98a2d6e | 1737 | break; |
44c440bc | 1738 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE: |
3adcb386 | 1739 | status = read_event_common_context_continue_state(msg_it); |
e98a2d6e | 1740 | break; |
44c440bc | 1741 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN: |
3adcb386 | 1742 | status = read_event_spec_context_begin_state(msg_it); |
e98a2d6e | 1743 | break; |
44c440bc | 1744 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE: |
3adcb386 | 1745 | status = read_event_spec_context_continue_state(msg_it); |
e98a2d6e PP |
1746 | break; |
1747 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
3adcb386 | 1748 | status = read_event_payload_begin_state(msg_it); |
e98a2d6e PP |
1749 | break; |
1750 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
3adcb386 | 1751 | status = read_event_payload_continue_state(msg_it); |
e98a2d6e | 1752 | break; |
d6e69534 | 1753 | case STATE_EMIT_MSG_EVENT: |
3adcb386 | 1754 | msg_it->state = STATE_DSCOPE_EVENT_HEADER_BEGIN; |
e98a2d6e | 1755 | break; |
1eb28907 | 1756 | case STATE_EMIT_QUEUED_MSG_EVENT: |
3adcb386 | 1757 | msg_it->state = STATE_EMIT_MSG_EVENT; |
1eb28907 | 1758 | break; |
e98a2d6e | 1759 | case STATE_SKIP_PACKET_PADDING: |
3adcb386 | 1760 | status = skip_packet_padding_state(msg_it); |
e98a2d6e | 1761 | break; |
fc917f65 | 1762 | case STATE_EMIT_MSG_PACKET_END_MULTI: |
3adcb386 | 1763 | msg_it->state = STATE_SKIP_PACKET_PADDING; |
e98a2d6e | 1764 | break; |
fc917f65 | 1765 | case STATE_EMIT_MSG_PACKET_END_SINGLE: |
ed4ddc26 | 1766 | msg_it->state = STATE_EMIT_MSG_STREAM_END; |
fc917f65 | 1767 | break; |
1eb28907 | 1768 | case STATE_EMIT_QUEUED_MSG_PACKET_END: |
3adcb386 | 1769 | msg_it->state = STATE_EMIT_MSG_PACKET_END_SINGLE; |
1eb28907 | 1770 | break; |
1cda4ff4 FD |
1771 | case STATE_CHECK_EMIT_MSG_STREAM_END: |
1772 | msg_it->state = check_emit_msg_stream_end(msg_it); | |
1773 | break; | |
fc917f65 | 1774 | case STATE_EMIT_MSG_STREAM_END: |
3adcb386 | 1775 | msg_it->state = STATE_DONE; |
fc917f65 PP |
1776 | break; |
1777 | case STATE_DONE: | |
1778 | break; | |
fdf0e7a0 | 1779 | default: |
eb7f6c4f | 1780 | BT_COMP_LOGF("Unknown CTF plugin message iterator state: " |
3adcb386 | 1781 | "msg-it-addr=%p, state=%d", msg_it, msg_it->state); |
498e7994 | 1782 | bt_common_abort(); |
e98a2d6e PP |
1783 | } |
1784 | ||
3adcb386 | 1785 | BT_COMP_LOGT("Handled state: msg-it-addr=%p, status=%s, " |
fdf0e7a0 | 1786 | "prev-state=%s, cur-state=%s", |
18a1979b | 1787 | msg_it, ctf_msg_iter_status_string(status), |
3adcb386 | 1788 | state_string(state), state_string(msg_it->state)); |
e98a2d6e PP |
1789 | return status; |
1790 | } | |
1791 | ||
f42867e2 | 1792 | BT_HIDDEN |
18a1979b | 1793 | void ctf_msg_iter_reset_for_next_stream_file(struct ctf_msg_iter *msg_it) |
3adcb386 FD |
1794 | { |
1795 | BT_ASSERT(msg_it); | |
1796 | BT_COMP_LOGD("Resetting message iterator: addr=%p", msg_it); | |
1797 | stack_clear(msg_it->stack); | |
1798 | msg_it->meta.sc = NULL; | |
1799 | msg_it->meta.ec = NULL; | |
1800 | BT_PACKET_PUT_REF_AND_RESET(msg_it->packet); | |
1801 | BT_STREAM_PUT_REF_AND_RESET(msg_it->stream); | |
1802 | BT_MESSAGE_PUT_REF_AND_RESET(msg_it->event_msg); | |
1803 | release_all_dscopes(msg_it); | |
1804 | msg_it->cur_dscope_field = NULL; | |
1805 | ||
3adcb386 FD |
1806 | msg_it->buf.addr = NULL; |
1807 | msg_it->buf.sz = 0; | |
1808 | msg_it->buf.at = 0; | |
1809 | msg_it->buf.last_eh_at = SIZE_MAX; | |
1810 | msg_it->buf.packet_offset = 0; | |
1811 | msg_it->state = STATE_INIT; | |
1812 | msg_it->cur_exp_packet_content_size = -1; | |
1813 | msg_it->cur_exp_packet_total_size = -1; | |
1814 | msg_it->cur_packet_offset = -1; | |
1815 | msg_it->cur_event_class_id = -1; | |
1816 | msg_it->snapshots.beginning_clock = UINT64_C(-1); | |
1817 | msg_it->snapshots.end_clock = UINT64_C(-1); | |
495490c5 PP |
1818 | } |
1819 | ||
1820 | /** | |
1821 | * Resets the internal state of a CTF message iterator. | |
1822 | */ | |
1823 | BT_HIDDEN | |
18a1979b | 1824 | void ctf_msg_iter_reset(struct ctf_msg_iter *msg_it) |
495490c5 | 1825 | { |
18a1979b | 1826 | ctf_msg_iter_reset_for_next_stream_file(msg_it); |
3adcb386 FD |
1827 | msg_it->cur_stream_class_id = -1; |
1828 | msg_it->cur_data_stream_id = -1; | |
1829 | msg_it->snapshots.discarded_events = UINT64_C(-1); | |
1830 | msg_it->snapshots.packets = UINT64_C(-1); | |
1831 | msg_it->prev_packet_snapshots.discarded_events = UINT64_C(-1); | |
1832 | msg_it->prev_packet_snapshots.packets = UINT64_C(-1); | |
1833 | msg_it->prev_packet_snapshots.beginning_clock = UINT64_C(-1); | |
1834 | msg_it->prev_packet_snapshots.end_clock = UINT64_C(-1); | |
bc0ae364 | 1835 | msg_it->emit_stream_beginning_message = true; |
1cda4ff4 | 1836 | msg_it->emit_stream_end_message = false; |
e98a2d6e PP |
1837 | } |
1838 | ||
1839 | static | |
18a1979b | 1840 | bt_field *borrow_next_field(struct ctf_msg_iter *msg_it) |
e98a2d6e | 1841 | { |
b19ff26f PP |
1842 | bt_field *next_field = NULL; |
1843 | bt_field *base_field; | |
1844 | const bt_field_class *base_fc; | |
ebdb6693 | 1845 | bt_field_class_type base_fc_type; |
e98a2d6e PP |
1846 | size_t index; |
1847 | ||
3adcb386 FD |
1848 | BT_ASSERT_DBG(!stack_empty(msg_it->stack)); |
1849 | index = stack_top(msg_it->stack)->index; | |
1850 | base_field = stack_top(msg_it->stack)->base; | |
98b15851 | 1851 | BT_ASSERT_DBG(base_field); |
40f4ba76 | 1852 | base_fc = bt_field_borrow_class_const(base_field); |
98b15851 | 1853 | BT_ASSERT_DBG(base_fc); |
ebdb6693 | 1854 | base_fc_type = bt_field_class_get_type(base_fc); |
e98a2d6e | 1855 | |
ebdb6693 | 1856 | if (base_fc_type == BT_FIELD_CLASS_TYPE_STRUCTURE) { |
98b15851 | 1857 | BT_ASSERT_DBG(index < |
5cd6d0e5 | 1858 | bt_field_class_structure_get_member_count( |
40f4ba76 PP |
1859 | bt_field_borrow_class_const( |
1860 | base_field))); | |
e5be10ef | 1861 | next_field = |
40f4ba76 | 1862 | bt_field_structure_borrow_member_field_by_index( |
e5be10ef | 1863 | base_field, index); |
ebdb6693 PP |
1864 | } else if (bt_field_class_type_is(base_fc_type, |
1865 | BT_FIELD_CLASS_TYPE_ARRAY)) { | |
98b15851 | 1866 | BT_ASSERT_DBG(index < bt_field_array_get_length(base_field)); |
40f4ba76 | 1867 | next_field = bt_field_array_borrow_element_field_by_index( |
44c440bc | 1868 | base_field, index); |
ebdb6693 PP |
1869 | } else if (bt_field_class_type_is(base_fc_type, |
1870 | BT_FIELD_CLASS_TYPE_VARIANT)) { | |
98b15851 | 1871 | BT_ASSERT_DBG(index == 0); |
40f4ba76 | 1872 | next_field = bt_field_variant_borrow_selected_option_field( |
44c440bc | 1873 | base_field); |
ebdb6693 | 1874 | } else { |
498e7994 | 1875 | bt_common_abort(); |
e98a2d6e PP |
1876 | } |
1877 | ||
98b15851 | 1878 | BT_ASSERT_DBG(next_field); |
e98a2d6e PP |
1879 | return next_field; |
1880 | } | |
1881 | ||
c44c3e70 | 1882 | static |
18a1979b | 1883 | void update_default_clock(struct ctf_msg_iter *msg_it, uint64_t new_val, |
44c440bc | 1884 | uint64_t new_val_size) |
c44c3e70 | 1885 | { |
44c440bc | 1886 | uint64_t new_val_mask; |
c44c3e70 | 1887 | uint64_t cur_value_masked; |
c44c3e70 | 1888 | |
98b15851 | 1889 | BT_ASSERT_DBG(new_val_size > 0); |
c44c3e70 JG |
1890 | |
1891 | /* | |
1892 | * Special case for a 64-bit new value, which is the limit | |
1893 | * of a clock value as of this version: overwrite the | |
1894 | * current value directly. | |
1895 | */ | |
44c440bc | 1896 | if (new_val_size == 64) { |
3adcb386 | 1897 | msg_it->default_clock_snapshot = new_val; |
c44c3e70 JG |
1898 | goto end; |
1899 | } | |
1900 | ||
44c440bc | 1901 | new_val_mask = (1ULL << new_val_size) - 1; |
3adcb386 | 1902 | cur_value_masked = msg_it->default_clock_snapshot & new_val_mask; |
c44c3e70 | 1903 | |
44c440bc | 1904 | if (new_val < cur_value_masked) { |
c44c3e70 JG |
1905 | /* |
1906 | * It looks like a wrap happened on the number of bits | |
1907 | * of the requested new value. Assume that the clock | |
1908 | * value wrapped only one time. | |
1909 | */ | |
3adcb386 | 1910 | msg_it->default_clock_snapshot += new_val_mask + 1; |
c44c3e70 JG |
1911 | } |
1912 | ||
1913 | /* Clear the low bits of the current clock value. */ | |
3adcb386 | 1914 | msg_it->default_clock_snapshot &= ~new_val_mask; |
c44c3e70 JG |
1915 | |
1916 | /* Set the low bits of the current clock value. */ | |
3adcb386 | 1917 | msg_it->default_clock_snapshot |= new_val; |
d1e46835 | 1918 | |
c44c3e70 | 1919 | end: |
ef267d12 | 1920 | BT_COMP_LOGT("Updated default clock's value from integer field's value: " |
3adcb386 | 1921 | "value=%" PRIu64, msg_it->default_clock_snapshot); |
c44c3e70 JG |
1922 | } |
1923 | ||
1924 | static | |
5cd6d0e5 PP |
1925 | enum bt_bfcr_status bfcr_unsigned_int_cb(uint64_t value, |
1926 | struct ctf_field_class *fc, void *data) | |
c44c3e70 | 1927 | { |
18a1979b | 1928 | struct ctf_msg_iter *msg_it = data; |
3adcb386 | 1929 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 1930 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
2246e99d | 1931 | |
b19ff26f | 1932 | bt_field *field = NULL; |
5cd6d0e5 | 1933 | struct ctf_field_class_int *int_fc = (void *) fc; |
c44c3e70 | 1934 | |
ef267d12 | 1935 | BT_COMP_LOGT("Unsigned integer function called from BFCR: " |
3adcb386 | 1936 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 1937 | "fc-type=%d, fc-in-ir=%d, value=%" PRIu64, |
3adcb386 | 1938 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir, value); |
312c056a | 1939 | |
91d81473 | 1940 | if (G_LIKELY(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE)) { |
44c440bc | 1941 | goto update_def_clock; |
c44c3e70 JG |
1942 | } |
1943 | ||
5cd6d0e5 PP |
1944 | switch (int_fc->meaning) { |
1945 | case CTF_FIELD_CLASS_MEANING_EVENT_CLASS_ID: | |
3adcb386 | 1946 | msg_it->cur_event_class_id = value; |
44c440bc | 1947 | break; |
5cd6d0e5 | 1948 | case CTF_FIELD_CLASS_MEANING_DATA_STREAM_ID: |
3adcb386 | 1949 | msg_it->cur_data_stream_id = value; |
44c440bc | 1950 | break; |
5cd6d0e5 | 1951 | case CTF_FIELD_CLASS_MEANING_PACKET_BEGINNING_TIME: |
3adcb386 | 1952 | msg_it->snapshots.beginning_clock = value; |
44c440bc | 1953 | break; |
5cd6d0e5 | 1954 | case CTF_FIELD_CLASS_MEANING_PACKET_END_TIME: |
3adcb386 | 1955 | msg_it->snapshots.end_clock = value; |
44c440bc | 1956 | break; |
5cd6d0e5 | 1957 | case CTF_FIELD_CLASS_MEANING_STREAM_CLASS_ID: |
3adcb386 | 1958 | msg_it->cur_stream_class_id = value; |
44c440bc | 1959 | break; |
5cd6d0e5 | 1960 | case CTF_FIELD_CLASS_MEANING_MAGIC: |
44c440bc | 1961 | if (value != 0xc1fc1fc1) { |
2246e99d | 1962 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
3adcb386 FD |
1963 | "Invalid CTF magic number: msg-it-addr=%p, " |
1964 | "magic=%" PRIx64, msg_it, value); | |
5cd6d0e5 | 1965 | status = BT_BFCR_STATUS_ERROR; |
c44c3e70 JG |
1966 | goto end; |
1967 | } | |
fdf0e7a0 | 1968 | |
44c440bc | 1969 | break; |
5cd6d0e5 | 1970 | case CTF_FIELD_CLASS_MEANING_PACKET_COUNTER_SNAPSHOT: |
3adcb386 | 1971 | msg_it->snapshots.packets = value; |
44c440bc | 1972 | break; |
5cd6d0e5 | 1973 | case CTF_FIELD_CLASS_MEANING_DISC_EV_REC_COUNTER_SNAPSHOT: |
3adcb386 | 1974 | msg_it->snapshots.discarded_events = value; |
44c440bc | 1975 | break; |
5cd6d0e5 | 1976 | case CTF_FIELD_CLASS_MEANING_EXP_PACKET_TOTAL_SIZE: |
3adcb386 | 1977 | msg_it->cur_exp_packet_total_size = value; |
44c440bc | 1978 | break; |
5cd6d0e5 | 1979 | case CTF_FIELD_CLASS_MEANING_EXP_PACKET_CONTENT_SIZE: |
3adcb386 | 1980 | msg_it->cur_exp_packet_content_size = value; |
44c440bc PP |
1981 | break; |
1982 | default: | |
498e7994 | 1983 | bt_common_abort(); |
c44c3e70 JG |
1984 | } |
1985 | ||
44c440bc | 1986 | update_def_clock: |
91d81473 | 1987 | if (G_UNLIKELY(int_fc->mapped_clock_class)) { |
3adcb386 | 1988 | update_default_clock(msg_it, value, int_fc->base.size); |
44c440bc | 1989 | } |
c44c3e70 | 1990 | |
91d81473 | 1991 | if (G_UNLIKELY(int_fc->storing_index >= 0)) { |
3adcb386 | 1992 | g_array_index(msg_it->stored_values, uint64_t, |
5cd6d0e5 | 1993 | (uint64_t) int_fc->storing_index) = value; |
44c440bc | 1994 | } |
e98a2d6e | 1995 | |
3adcb386 | 1996 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
312c056a | 1997 | goto end; |
e98a2d6e PP |
1998 | } |
1999 | ||
3adcb386 | 2000 | field = borrow_next_field(msg_it); |
98b15851 PP |
2001 | BT_ASSERT_DBG(field); |
2002 | BT_ASSERT_DBG(bt_field_borrow_class_const(field) == fc->ir_fc); | |
2003 | BT_ASSERT_DBG(bt_field_class_type_is(bt_field_get_class_type(field), | |
ebdb6693 | 2004 | BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER)); |
9c08c816 | 2005 | bt_field_integer_unsigned_set_value(field, value); |
3adcb386 | 2006 | stack_top(msg_it->stack)->index++; |
fdf0e7a0 | 2007 | |
312c056a | 2008 | end: |
e98a2d6e PP |
2009 | return status; |
2010 | } | |
2011 | ||
5f870343 | 2012 | static |
5cd6d0e5 PP |
2013 | enum bt_bfcr_status bfcr_unsigned_int_char_cb(uint64_t value, |
2014 | struct ctf_field_class *fc, void *data) | |
5f870343 | 2015 | { |
44c440bc | 2016 | int ret; |
18a1979b | 2017 | struct ctf_msg_iter *msg_it = data; |
3adcb386 | 2018 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 2019 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2020 | bt_field *string_field = NULL; |
5cd6d0e5 | 2021 | struct ctf_field_class_int *int_fc = (void *) fc; |
44c440bc | 2022 | char str[2] = {'\0', '\0'}; |
5f870343 | 2023 | |
ef267d12 | 2024 | BT_COMP_LOGT("Unsigned integer character function called from BFCR: " |
3adcb386 | 2025 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 2026 | "fc-type=%d, fc-in-ir=%d, value=%" PRIu64, |
3adcb386 | 2027 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir, value); |
98b15851 PP |
2028 | BT_ASSERT_DBG(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE); |
2029 | BT_ASSERT_DBG(!int_fc->mapped_clock_class); | |
2030 | BT_ASSERT_DBG(int_fc->storing_index < 0); | |
312c056a | 2031 | |
3adcb386 | 2032 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
44c440bc PP |
2033 | goto end; |
2034 | } | |
5f870343 | 2035 | |
3adcb386 | 2036 | if (msg_it->done_filling_string) { |
5f870343 JG |
2037 | goto end; |
2038 | } | |
2039 | ||
44c440bc | 2040 | if (value == 0) { |
3adcb386 | 2041 | msg_it->done_filling_string = true; |
5f870343 JG |
2042 | goto end; |
2043 | } | |
2044 | ||
3adcb386 | 2045 | string_field = stack_top(msg_it->stack)->base; |
98b15851 | 2046 | BT_ASSERT_DBG(bt_field_get_class_type(string_field) == |
ebdb6693 | 2047 | BT_FIELD_CLASS_TYPE_STRING); |
44c440bc PP |
2048 | |
2049 | /* Append character */ | |
2050 | str[0] = (char) value; | |
40f4ba76 | 2051 | ret = bt_field_string_append_with_length(string_field, str, 1); |
44c440bc | 2052 | if (ret) { |
2246e99d FD |
2053 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2054 | "Cannot append character to string field's value: " | |
3adcb386 FD |
2055 | "msg-it-addr=%p, field-addr=%p, ret=%d", |
2056 | msg_it, string_field, ret); | |
5cd6d0e5 | 2057 | status = BT_BFCR_STATUS_ERROR; |
44c440bc PP |
2058 | goto end; |
2059 | } | |
312c056a | 2060 | |
5f870343 JG |
2061 | end: |
2062 | return status; | |
2063 | } | |
2064 | ||
2065 | static | |
5cd6d0e5 PP |
2066 | enum bt_bfcr_status bfcr_signed_int_cb(int64_t value, |
2067 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2068 | { |
5cd6d0e5 | 2069 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2070 | bt_field *field = NULL; |
18a1979b | 2071 | struct ctf_msg_iter *msg_it = data; |
5cd6d0e5 | 2072 | struct ctf_field_class_int *int_fc = (void *) fc; |
e98a2d6e | 2073 | |
ef267d12 | 2074 | BT_COMP_LOGT("Signed integer function called from BFCR: " |
3adcb386 | 2075 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 2076 | "fc-type=%d, fc-in-ir=%d, value=%" PRId64, |
3adcb386 | 2077 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir, value); |
98b15851 | 2078 | BT_ASSERT_DBG(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE); |
44c440bc | 2079 | |
91d81473 | 2080 | if (G_UNLIKELY(int_fc->storing_index >= 0)) { |
3adcb386 | 2081 | g_array_index(msg_it->stored_values, uint64_t, |
5cd6d0e5 | 2082 | (uint64_t) int_fc->storing_index) = (uint64_t) value; |
44c440bc PP |
2083 | } |
2084 | ||
3adcb386 | 2085 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
312c056a | 2086 | goto end; |
e98a2d6e PP |
2087 | } |
2088 | ||
3adcb386 | 2089 | field = borrow_next_field(msg_it); |
98b15851 PP |
2090 | BT_ASSERT_DBG(field); |
2091 | BT_ASSERT_DBG(bt_field_borrow_class_const(field) == fc->ir_fc); | |
2092 | BT_ASSERT_DBG(bt_field_class_type_is(bt_field_get_class_type(field), | |
ebdb6693 | 2093 | BT_FIELD_CLASS_TYPE_SIGNED_INTEGER)); |
9c08c816 | 2094 | bt_field_integer_signed_set_value(field, value); |
3adcb386 | 2095 | stack_top(msg_it->stack)->index++; |
fdf0e7a0 | 2096 | |
312c056a | 2097 | end: |
e98a2d6e PP |
2098 | return status; |
2099 | } | |
2100 | ||
2101 | static | |
5cd6d0e5 PP |
2102 | enum bt_bfcr_status bfcr_floating_point_cb(double value, |
2103 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2104 | { |
5cd6d0e5 | 2105 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2106 | bt_field *field = NULL; |
18a1979b | 2107 | struct ctf_msg_iter *msg_it = data; |
96741e7f | 2108 | bt_field_class_type type; |
e98a2d6e | 2109 | |
ef267d12 | 2110 | BT_COMP_LOGT("Floating point number function called from BFCR: " |
3adcb386 | 2111 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 2112 | "fc-type=%d, fc-in-ir=%d, value=%f", |
3adcb386 | 2113 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir, value); |
41693723 | 2114 | |
3adcb386 | 2115 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
41693723 PP |
2116 | goto end; |
2117 | } | |
2118 | ||
3adcb386 | 2119 | field = borrow_next_field(msg_it); |
96741e7f | 2120 | type = bt_field_get_class_type(field); |
98b15851 PP |
2121 | BT_ASSERT_DBG(field); |
2122 | BT_ASSERT_DBG(bt_field_borrow_class_const(field) == fc->ir_fc); | |
2123 | BT_ASSERT_DBG(bt_field_class_type_is(type, BT_FIELD_CLASS_TYPE_REAL)); | |
fe4df857 FD |
2124 | |
2125 | if (type == BT_FIELD_CLASS_TYPE_SINGLE_PRECISION_REAL) { | |
2126 | bt_field_real_single_precision_set_value(field, (float) value); | |
2127 | } else { | |
2128 | bt_field_real_double_precision_set_value(field, value); | |
2129 | } | |
3adcb386 | 2130 | stack_top(msg_it->stack)->index++; |
41693723 PP |
2131 | |
2132 | end: | |
e98a2d6e PP |
2133 | return status; |
2134 | } | |
2135 | ||
2136 | static | |
5cd6d0e5 PP |
2137 | enum bt_bfcr_status bfcr_string_begin_cb( |
2138 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2139 | { |
b19ff26f | 2140 | bt_field *field = NULL; |
18a1979b | 2141 | struct ctf_msg_iter *msg_it = data; |
e98a2d6e | 2142 | |
ef267d12 | 2143 | BT_COMP_LOGT("String (beginning) function called from BFCR: " |
3adcb386 | 2144 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 2145 | "fc-type=%d, fc-in-ir=%d", |
3adcb386 | 2146 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir); |
e98a2d6e | 2147 | |
3adcb386 | 2148 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
41693723 PP |
2149 | goto end; |
2150 | } | |
2151 | ||
3adcb386 | 2152 | field = borrow_next_field(msg_it); |
98b15851 PP |
2153 | BT_ASSERT_DBG(field); |
2154 | BT_ASSERT_DBG(bt_field_borrow_class_const(field) == fc->ir_fc); | |
2155 | BT_ASSERT_DBG(bt_field_get_class_type(field) == | |
40f4ba76 | 2156 | BT_FIELD_CLASS_TYPE_STRING); |
d24d5663 | 2157 | bt_field_string_clear(field); |
312c056a | 2158 | |
e98a2d6e | 2159 | /* |
5cd6d0e5 PP |
2160 | * Push on stack. Not a compound class per se, but we know that |
2161 | * only bfcr_string_cb() may be called between this call and a | |
2162 | * subsequent call to bfcr_string_end_cb(). | |
e98a2d6e | 2163 | */ |
3adcb386 | 2164 | stack_push(msg_it->stack, field); |
41693723 PP |
2165 | |
2166 | end: | |
5cd6d0e5 | 2167 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2168 | } |
2169 | ||
2170 | static | |
5cd6d0e5 PP |
2171 | enum bt_bfcr_status bfcr_string_cb(const char *value, |
2172 | size_t len, struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2173 | { |
5cd6d0e5 | 2174 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2175 | bt_field *field = NULL; |
18a1979b | 2176 | struct ctf_msg_iter *msg_it = data; |
3adcb386 | 2177 | bt_self_component *self_comp = msg_it->self_comp; |
e98a2d6e PP |
2178 | int ret; |
2179 | ||
ef267d12 | 2180 | BT_COMP_LOGT("String (substring) function called from BFCR: " |
3adcb386 | 2181 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 2182 | "fc-type=%d, fc-in-ir=%d, string-length=%zu", |
3adcb386 | 2183 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir, |
fdf0e7a0 | 2184 | len); |
41693723 | 2185 | |
3adcb386 | 2186 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
41693723 PP |
2187 | goto end; |
2188 | } | |
2189 | ||
3adcb386 | 2190 | field = stack_top(msg_it->stack)->base; |
98b15851 | 2191 | BT_ASSERT_DBG(field); |
e98a2d6e | 2192 | |
312c056a | 2193 | /* Append current substring */ |
40f4ba76 | 2194 | ret = bt_field_string_append_with_length(field, value, len); |
e98a2d6e | 2195 | if (ret) { |
2246e99d FD |
2196 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2197 | "Cannot append substring to string field's value: " | |
3adcb386 FD |
2198 | "msg-it-addr=%p, field-addr=%p, string-length=%zu, " |
2199 | "ret=%d", msg_it, field, len, ret); | |
5cd6d0e5 | 2200 | status = BT_BFCR_STATUS_ERROR; |
e98a2d6e PP |
2201 | goto end; |
2202 | } | |
2203 | ||
2204 | end: | |
2205 | return status; | |
2206 | } | |
2207 | ||
2208 | static | |
5cd6d0e5 PP |
2209 | enum bt_bfcr_status bfcr_string_end_cb( |
2210 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2211 | { |
18a1979b | 2212 | struct ctf_msg_iter *msg_it = data; |
e98a2d6e | 2213 | |
ef267d12 | 2214 | BT_COMP_LOGT("String (end) function called from BFCR: " |
3adcb386 | 2215 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 2216 | "fc-type=%d, fc-in-ir=%d", |
3adcb386 | 2217 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir); |
41693723 | 2218 | |
3adcb386 | 2219 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
41693723 PP |
2220 | goto end; |
2221 | } | |
fdf0e7a0 | 2222 | |
e98a2d6e | 2223 | /* Pop string field */ |
3adcb386 | 2224 | stack_pop(msg_it->stack); |
e98a2d6e PP |
2225 | |
2226 | /* Go to next field */ | |
3adcb386 | 2227 | stack_top(msg_it->stack)->index++; |
41693723 PP |
2228 | |
2229 | end: | |
5cd6d0e5 | 2230 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2231 | } |
2232 | ||
7c7301d5 | 2233 | static |
5cd6d0e5 PP |
2234 | enum bt_bfcr_status bfcr_compound_begin_cb( |
2235 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2236 | { |
18a1979b | 2237 | struct ctf_msg_iter *msg_it = data; |
b19ff26f | 2238 | bt_field *field; |
e98a2d6e | 2239 | |
ef267d12 | 2240 | BT_COMP_LOGT("Compound (beginning) function called from BFCR: " |
3adcb386 | 2241 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 2242 | "fc-type=%d, fc-in-ir=%d", |
3adcb386 | 2243 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir); |
44c440bc | 2244 | |
3adcb386 | 2245 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
44c440bc PP |
2246 | goto end; |
2247 | } | |
fdf0e7a0 | 2248 | |
312c056a | 2249 | /* Borrow field */ |
3adcb386 | 2250 | if (stack_empty(msg_it->stack)) { |
312c056a | 2251 | /* Root: already set by read_dscope_begin_state() */ |
3adcb386 | 2252 | field = msg_it->cur_dscope_field; |
e98a2d6e | 2253 | } else { |
3adcb386 | 2254 | field = borrow_next_field(msg_it); |
98b15851 | 2255 | BT_ASSERT_DBG(field); |
e98a2d6e PP |
2256 | } |
2257 | ||
2258 | /* Push field */ | |
98b15851 PP |
2259 | BT_ASSERT_DBG(field); |
2260 | BT_ASSERT_DBG(bt_field_borrow_class_const(field) == fc->ir_fc); | |
3adcb386 | 2261 | stack_push(msg_it->stack, field); |
44c440bc PP |
2262 | |
2263 | /* | |
5cd6d0e5 | 2264 | * Change BFCR "unsigned int" callback if it's a text |
44c440bc PP |
2265 | * array/sequence. |
2266 | */ | |
864cad70 PP |
2267 | if (fc->type == CTF_FIELD_CLASS_TYPE_ARRAY || |
2268 | fc->type == CTF_FIELD_CLASS_TYPE_SEQUENCE) { | |
5cd6d0e5 | 2269 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
44c440bc | 2270 | |
5cd6d0e5 | 2271 | if (array_fc->is_text) { |
98b15851 | 2272 | BT_ASSERT_DBG(bt_field_get_class_type(field) == |
40f4ba76 | 2273 | BT_FIELD_CLASS_TYPE_STRING); |
3adcb386 | 2274 | msg_it->done_filling_string = false; |
d24d5663 | 2275 | bt_field_string_clear(field); |
3adcb386 | 2276 | bt_bfcr_set_unsigned_int_cb(msg_it->bfcr, |
5cd6d0e5 | 2277 | bfcr_unsigned_int_char_cb); |
44c440bc | 2278 | } |
e98a2d6e PP |
2279 | } |
2280 | ||
2281 | end: | |
5cd6d0e5 | 2282 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2283 | } |
2284 | ||
7c7301d5 | 2285 | static |
5cd6d0e5 PP |
2286 | enum bt_bfcr_status bfcr_compound_end_cb( |
2287 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2288 | { |
18a1979b | 2289 | struct ctf_msg_iter *msg_it = data; |
e98a2d6e | 2290 | |
ef267d12 | 2291 | BT_COMP_LOGT("Compound (end) function called from BFCR: " |
3adcb386 | 2292 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 2293 | "fc-type=%d, fc-in-ir=%d", |
3adcb386 | 2294 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir); |
e98a2d6e | 2295 | |
3adcb386 | 2296 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
e98a2d6e PP |
2297 | goto end; |
2298 | } | |
2299 | ||
3adcb386 FD |
2300 | BT_ASSERT_DBG(!stack_empty(msg_it->stack)); |
2301 | BT_ASSERT_DBG(bt_field_borrow_class_const(stack_top(msg_it->stack)->base) == | |
5cd6d0e5 | 2302 | fc->ir_fc); |
e98a2d6e | 2303 | |
44c440bc | 2304 | /* |
5cd6d0e5 | 2305 | * Reset BFCR "unsigned int" callback if it's a text |
44c440bc PP |
2306 | * array/sequence. |
2307 | */ | |
864cad70 PP |
2308 | if (fc->type == CTF_FIELD_CLASS_TYPE_ARRAY || |
2309 | fc->type == CTF_FIELD_CLASS_TYPE_SEQUENCE) { | |
5cd6d0e5 | 2310 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
44c440bc | 2311 | |
5cd6d0e5 | 2312 | if (array_fc->is_text) { |
98b15851 | 2313 | BT_ASSERT_DBG(bt_field_get_class_type( |
3adcb386 | 2314 | stack_top(msg_it->stack)->base) == |
e5be10ef | 2315 | BT_FIELD_CLASS_TYPE_STRING); |
3adcb386 | 2316 | bt_bfcr_set_unsigned_int_cb(msg_it->bfcr, |
5cd6d0e5 | 2317 | bfcr_unsigned_int_cb); |
e98a2d6e | 2318 | } |
44c440bc | 2319 | } |
e98a2d6e | 2320 | |
44c440bc | 2321 | /* Pop stack */ |
3adcb386 | 2322 | stack_pop(msg_it->stack); |
e98a2d6e | 2323 | |
44c440bc | 2324 | /* If the stack is not empty, increment the base's index */ |
3adcb386 FD |
2325 | if (!stack_empty(msg_it->stack)) { |
2326 | stack_top(msg_it->stack)->index++; | |
e98a2d6e PP |
2327 | } |
2328 | ||
2329 | end: | |
5cd6d0e5 | 2330 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2331 | } |
2332 | ||
2333 | static | |
5cd6d0e5 | 2334 | int64_t bfcr_get_sequence_length_cb(struct ctf_field_class *fc, void *data) |
e98a2d6e | 2335 | { |
b19ff26f | 2336 | bt_field *seq_field; |
18a1979b | 2337 | struct ctf_msg_iter *msg_it = data; |
3adcb386 | 2338 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 2339 | struct ctf_field_class_sequence *seq_fc = (void *) fc; |
2246e99d | 2340 | int64_t length; |
44c440bc | 2341 | int ret; |
e98a2d6e | 2342 | |
3adcb386 | 2343 | length = (uint64_t) g_array_index(msg_it->stored_values, uint64_t, |
5cd6d0e5 | 2344 | seq_fc->stored_length_index); |
de24a43f | 2345 | |
3adcb386 | 2346 | if (G_UNLIKELY(msg_it->dry_run)){ |
de24a43f FD |
2347 | goto end; |
2348 | } | |
2349 | ||
3adcb386 | 2350 | seq_field = stack_top(msg_it->stack)->base; |
98b15851 | 2351 | BT_ASSERT_DBG(seq_field); |
785a6bba PP |
2352 | |
2353 | /* | |
2354 | * bfcr_get_sequence_length_cb() also gets called back for a | |
2355 | * text sequence, but the destination field is a string field. | |
2356 | * Only set the field's sequence length if the destination field | |
2357 | * is a sequence field. | |
2358 | */ | |
2359 | if (!seq_fc->base.is_text) { | |
98b15851 | 2360 | BT_ASSERT_DBG(bt_field_class_type_is( |
ebdb6693 PP |
2361 | bt_field_get_class_type(seq_field), |
2362 | BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY)); | |
9c08c816 | 2363 | ret = bt_field_array_dynamic_set_length(seq_field, |
785a6bba PP |
2364 | (uint64_t) length); |
2365 | if (ret) { | |
2246e99d FD |
2366 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2367 | "Cannot set dynamic array field's length field: " | |
3adcb386 FD |
2368 | "msg-it-addr=%p, field-addr=%p, " |
2369 | "length=%" PRIu64, msg_it, seq_field, length); | |
2246e99d | 2370 | length = -1; |
785a6bba | 2371 | } |
2cf1d51e | 2372 | } |
fdf0e7a0 | 2373 | |
de24a43f | 2374 | end: |
44c440bc | 2375 | return length; |
e98a2d6e PP |
2376 | } |
2377 | ||
2378 | static | |
5cd6d0e5 PP |
2379 | struct ctf_field_class *bfcr_borrow_variant_selected_field_class_cb( |
2380 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2381 | { |
312c056a | 2382 | int ret; |
44c440bc PP |
2383 | uint64_t i; |
2384 | int64_t option_index = -1; | |
18a1979b | 2385 | struct ctf_msg_iter *msg_it = data; |
5cd6d0e5 PP |
2386 | struct ctf_field_class_variant *var_fc = (void *) fc; |
2387 | struct ctf_named_field_class *selected_option = NULL; | |
3adcb386 | 2388 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 2389 | struct ctf_field_class *ret_fc = NULL; |
44c440bc PP |
2390 | union { |
2391 | uint64_t u; | |
2392 | int64_t i; | |
2393 | } tag; | |
2394 | ||
2395 | /* Get variant's tag */ | |
3adcb386 | 2396 | tag.u = g_array_index(msg_it->stored_values, uint64_t, |
5cd6d0e5 | 2397 | var_fc->stored_tag_index); |
e98a2d6e PP |
2398 | |
2399 | /* | |
44c440bc | 2400 | * Check each range to find the selected option's index. |
e98a2d6e | 2401 | */ |
5cd6d0e5 PP |
2402 | if (var_fc->tag_fc->base.is_signed) { |
2403 | for (i = 0; i < var_fc->ranges->len; i++) { | |
2404 | struct ctf_field_class_variant_range *range = | |
2405 | ctf_field_class_variant_borrow_range_by_index( | |
2406 | var_fc, i); | |
44c440bc PP |
2407 | |
2408 | if (tag.i >= range->range.lower.i && | |
2409 | tag.i <= range->range.upper.i) { | |
2410 | option_index = (int64_t) range->option_index; | |
2411 | break; | |
2412 | } | |
2413 | } | |
312c056a | 2414 | } else { |
5cd6d0e5 PP |
2415 | for (i = 0; i < var_fc->ranges->len; i++) { |
2416 | struct ctf_field_class_variant_range *range = | |
2417 | ctf_field_class_variant_borrow_range_by_index( | |
2418 | var_fc, i); | |
44c440bc PP |
2419 | |
2420 | if (tag.u >= range->range.lower.u && | |
2421 | tag.u <= range->range.upper.u) { | |
2422 | option_index = (int64_t) range->option_index; | |
2423 | break; | |
2424 | } | |
2425 | } | |
312c056a PP |
2426 | } |
2427 | ||
44c440bc | 2428 | if (option_index < 0) { |
2246e99d FD |
2429 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2430 | "Cannot find variant field class's option: " | |
3adcb386 FD |
2431 | "msg-it-addr=%p, var-fc-addr=%p, u-tag=%" PRIu64 ", " |
2432 | "i-tag=%" PRId64, msg_it, var_fc, tag.u, tag.i); | |
2246e99d | 2433 | ret_fc = NULL; |
e98a2d6e PP |
2434 | goto end; |
2435 | } | |
2436 | ||
5cd6d0e5 PP |
2437 | selected_option = ctf_field_class_variant_borrow_option_by_index( |
2438 | var_fc, (uint64_t) option_index); | |
e98a2d6e | 2439 | |
3adcb386 FD |
2440 | if (selected_option->fc->in_ir && !msg_it->dry_run) { |
2441 | bt_field *var_field = stack_top(msg_it->stack)->base; | |
1556a1af | 2442 | |
7b4311c1 | 2443 | ret = bt_field_variant_select_option_by_index( |
e5be10ef | 2444 | var_field, option_index); |
e22b45d0 | 2445 | if (ret) { |
2246e99d FD |
2446 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2447 | "Cannot select variant field's option field: " | |
3adcb386 FD |
2448 | "msg-it-addr=%p, var-field-addr=%p, " |
2449 | "opt-index=%" PRId64, msg_it, var_field, | |
44c440bc | 2450 | option_index); |
2246e99d | 2451 | ret_fc = NULL; |
1556a1af JG |
2452 | goto end; |
2453 | } | |
af87daef PP |
2454 | } |
2455 | ||
5cd6d0e5 | 2456 | ret_fc = selected_option->fc; |
e22b45d0 | 2457 | |
af87daef | 2458 | end: |
5cd6d0e5 | 2459 | return ret_fc; |
44c440bc PP |
2460 | } |
2461 | ||
f42867e2 | 2462 | static |
18a1979b | 2463 | bt_message *create_msg_stream_beginning(struct ctf_msg_iter *msg_it) |
f42867e2 | 2464 | { |
3adcb386 | 2465 | bt_self_component *self_comp = msg_it->self_comp; |
308adb47 | 2466 | bt_message *msg; |
f42867e2 | 2467 | |
3adcb386 | 2468 | BT_ASSERT(msg_it->stream); |
e5d25da2 SM |
2469 | BT_ASSERT(msg_it->self_msg_iter); |
2470 | msg = bt_message_stream_beginning_create(msg_it->self_msg_iter, | |
3adcb386 | 2471 | msg_it->stream); |
308adb47 | 2472 | if (!msg) { |
2246e99d FD |
2473 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2474 | "Cannot create stream beginning message: " | |
3adcb386 FD |
2475 | "msg-it-addr=%p, stream-addr=%p", |
2476 | msg_it, msg_it->stream); | |
f42867e2 PP |
2477 | } |
2478 | ||
308adb47 | 2479 | return msg; |
f42867e2 PP |
2480 | } |
2481 | ||
fc917f65 | 2482 | static |
18a1979b | 2483 | bt_message *create_msg_stream_end(struct ctf_msg_iter *msg_it) |
f42867e2 | 2484 | { |
3adcb386 | 2485 | bt_self_component *self_comp = msg_it->self_comp; |
308adb47 | 2486 | bt_message *msg; |
f42867e2 | 2487 | |
3adcb386 | 2488 | if (!msg_it->stream) { |
2246e99d FD |
2489 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2490 | "Cannot create stream end message because stream is NULL: " | |
3adcb386 | 2491 | "msg-it-addr=%p", msg_it); |
308adb47 FD |
2492 | msg = NULL; |
2493 | goto end; | |
f42867e2 PP |
2494 | } |
2495 | ||
e5d25da2 SM |
2496 | BT_ASSERT(msg_it->self_msg_iter); |
2497 | msg = bt_message_stream_end_create(msg_it->self_msg_iter, | |
3adcb386 | 2498 | msg_it->stream); |
308adb47 | 2499 | if (!msg) { |
2246e99d FD |
2500 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2501 | "Cannot create stream end message: " | |
3adcb386 FD |
2502 | "msg-it-addr=%p, stream-addr=%p", |
2503 | msg_it, msg_it->stream); | |
f42867e2 | 2504 | } |
fc917f65 | 2505 | |
308adb47 FD |
2506 | end: |
2507 | return msg; | |
f42867e2 PP |
2508 | } |
2509 | ||
78586d8a | 2510 | static |
18a1979b | 2511 | bt_message *create_msg_packet_beginning(struct ctf_msg_iter *msg_it, |
308adb47 | 2512 | bool use_default_cs) |
e98a2d6e | 2513 | { |
3adcb386 | 2514 | bt_self_component *self_comp = msg_it->self_comp; |
308adb47 | 2515 | bt_message *msg; |
3adcb386 | 2516 | const bt_stream_class *sc = msg_it->meta.sc->ir_sc; |
e98a2d6e | 2517 | |
3adcb386 | 2518 | BT_ASSERT(msg_it->packet); |
44c440bc | 2519 | BT_ASSERT(sc); |
e5d25da2 | 2520 | BT_ASSERT(msg_it->self_msg_iter); |
a6d85d2f | 2521 | |
3adcb386 FD |
2522 | if (msg_it->meta.sc->packets_have_ts_begin) { |
2523 | BT_ASSERT(msg_it->snapshots.beginning_clock != UINT64_C(-1)); | |
1eb28907 FD |
2524 | uint64_t raw_cs_value; |
2525 | ||
2526 | /* | |
2527 | * Either use the decoded packet `timestamp_begin` field or the | |
2528 | * current stream's default clock_snapshot. | |
2529 | */ | |
2530 | if (use_default_cs) { | |
3adcb386 | 2531 | raw_cs_value = msg_it->default_clock_snapshot; |
1eb28907 | 2532 | } else { |
3adcb386 | 2533 | raw_cs_value = msg_it->snapshots.beginning_clock; |
1eb28907 FD |
2534 | } |
2535 | ||
a33f7c34 | 2536 | msg = bt_message_packet_beginning_create_with_default_clock_snapshot( |
e5d25da2 | 2537 | msg_it->self_msg_iter, msg_it->packet, |
1eb28907 | 2538 | raw_cs_value); |
a33f7c34 | 2539 | } else { |
e5d25da2 | 2540 | msg = bt_message_packet_beginning_create(msg_it->self_msg_iter, |
3adcb386 | 2541 | msg_it->packet); |
a6d85d2f PP |
2542 | } |
2543 | ||
d6e69534 | 2544 | if (!msg) { |
2246e99d FD |
2545 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2546 | "Cannot create packet beginning message: " | |
3adcb386 FD |
2547 | "msg-it-addr=%p, packet-addr=%p", |
2548 | msg_it, msg_it->packet); | |
e22b45d0 | 2549 | goto end; |
78586d8a | 2550 | } |
312c056a | 2551 | |
e22b45d0 | 2552 | end: |
308adb47 | 2553 | return msg; |
e98a2d6e PP |
2554 | } |
2555 | ||
1eb28907 | 2556 | static |
18a1979b | 2557 | bt_message *emit_delayed_packet_beg_msg(struct ctf_msg_iter *msg_it) |
1eb28907 FD |
2558 | { |
2559 | bool packet_beg_ts_need_fix_up; | |
2560 | ||
3adcb386 | 2561 | msg_it->emit_delayed_packet_beginning_msg = false; |
1eb28907 FD |
2562 | |
2563 | /* | |
2564 | * Only fix the packet's timestamp_begin if it's larger than the first | |
2565 | * event of the packet. If there was no event in the packet, the | |
2566 | * `default_clock_snapshot` field will be either equal or greater than | |
2567 | * `snapshots.beginning_clock` so there is not fix needed. | |
2568 | */ | |
2569 | packet_beg_ts_need_fix_up = | |
3adcb386 | 2570 | msg_it->default_clock_snapshot < msg_it->snapshots.beginning_clock; |
1eb28907 FD |
2571 | |
2572 | /* create_msg_packet_beginning() logs errors */ | |
3adcb386 | 2573 | return create_msg_packet_beginning(msg_it, packet_beg_ts_need_fix_up); |
1eb28907 FD |
2574 | } |
2575 | ||
2576 | ||
78586d8a | 2577 | static |
18a1979b | 2578 | bt_message *create_msg_packet_end(struct ctf_msg_iter *msg_it) |
e98a2d6e | 2579 | { |
d6e69534 | 2580 | bt_message *msg; |
5c2e8153 | 2581 | bool update_default_cs = true; |
3adcb386 | 2582 | bt_self_component *self_comp = msg_it->self_comp; |
e98a2d6e | 2583 | |
3adcb386 | 2584 | if (!msg_it->packet) { |
308adb47 FD |
2585 | msg = NULL; |
2586 | goto end; | |
e98a2d6e PP |
2587 | } |
2588 | ||
1eb28907 FD |
2589 | /* |
2590 | * Check if we need to emit the delayed packet | |
2591 | * beginning message instead of the packet end message. | |
2592 | */ | |
3adcb386 FD |
2593 | if (G_UNLIKELY(msg_it->emit_delayed_packet_beginning_msg)) { |
2594 | msg = emit_delayed_packet_beg_msg(msg_it); | |
1eb28907 | 2595 | /* Don't forget to emit the packet end message. */ |
3adcb386 | 2596 | msg_it->state = STATE_EMIT_QUEUED_MSG_PACKET_END; |
308adb47 | 2597 | goto end; |
1eb28907 FD |
2598 | } |
2599 | ||
5c2e8153 | 2600 | /* Check if may be affected by lttng-crash timestamp_end quirk. */ |
3adcb386 | 2601 | if (G_UNLIKELY(msg_it->meta.tc->quirks.lttng_crash)) { |
5c2e8153 FD |
2602 | /* |
2603 | * Check if the `timestamp_begin` field is non-zero but | |
2604 | * `timestamp_end` is zero. It means the trace is affected by | |
2605 | * the lttng-crash packet `timestamp_end` quirk and must be | |
2606 | * fixed up by omitting to update the default clock snapshot to | |
2607 | * the `timestamp_end` as is typically done. | |
2608 | */ | |
3adcb386 FD |
2609 | if (msg_it->snapshots.beginning_clock != 0 && |
2610 | msg_it->snapshots.end_clock == 0) { | |
5c2e8153 FD |
2611 | update_default_cs = false; |
2612 | } | |
2613 | } | |
2614 | ||
7d1ac606 FD |
2615 | /* |
2616 | * Check if may be affected by lttng event-after-packet `timestamp_end` | |
2617 | * quirk. | |
2618 | */ | |
3adcb386 | 2619 | if (msg_it->meta.tc->quirks.lttng_event_after_packet) { |
7d1ac606 FD |
2620 | /* |
2621 | * Check if `timestamp_end` is smaller then the current | |
2622 | * default_clock_snapshot (which is set to the last event | |
2623 | * decoded). It means the trace is affected by the lttng | |
2624 | * `event-after-packet` packet `timestamp_end` quirk and must | |
2625 | * be fixed up by omitting to update the default clock snapshot | |
2626 | * to the `timestamp_end` as is typically done. | |
2627 | */ | |
3adcb386 | 2628 | if (msg_it->snapshots.end_clock < msg_it->default_clock_snapshot) { |
7d1ac606 FD |
2629 | update_default_cs = false; |
2630 | } | |
2631 | } | |
2632 | ||
5c2e8153 | 2633 | /* Update default clock from packet's end time. */ |
3adcb386 FD |
2634 | if (msg_it->snapshots.end_clock != UINT64_C(-1) && update_default_cs) { |
2635 | msg_it->default_clock_snapshot = msg_it->snapshots.end_clock; | |
44c440bc PP |
2636 | } |
2637 | ||
e5d25da2 | 2638 | BT_ASSERT(msg_it->self_msg_iter); |
a6d85d2f | 2639 | |
3adcb386 FD |
2640 | if (msg_it->meta.sc->packets_have_ts_end) { |
2641 | BT_ASSERT(msg_it->snapshots.end_clock != UINT64_C(-1)); | |
a6d85d2f | 2642 | msg = bt_message_packet_end_create_with_default_clock_snapshot( |
e5d25da2 | 2643 | msg_it->self_msg_iter, msg_it->packet, |
3adcb386 | 2644 | msg_it->default_clock_snapshot); |
a33f7c34 | 2645 | } else { |
e5d25da2 | 2646 | msg = bt_message_packet_end_create(msg_it->self_msg_iter, |
3adcb386 | 2647 | msg_it->packet); |
a6d85d2f PP |
2648 | } |
2649 | ||
d6e69534 | 2650 | if (!msg) { |
2246e99d FD |
2651 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2652 | "Cannot create packet end message: " | |
3adcb386 FD |
2653 | "msg-it-addr=%p, packet-addr=%p", |
2654 | msg_it, msg_it->packet); | |
308adb47 | 2655 | goto end; |
ccf82993 | 2656 | |
78586d8a | 2657 | } |
e98a2d6e | 2658 | |
3adcb386 | 2659 | BT_PACKET_PUT_REF_AND_RESET(msg_it->packet); |
308adb47 FD |
2660 | |
2661 | end: | |
2662 | return msg; | |
e98a2d6e PP |
2663 | } |
2664 | ||
495490c5 | 2665 | static |
18a1979b | 2666 | bt_message *create_msg_discarded_events(struct ctf_msg_iter *msg_it) |
495490c5 PP |
2667 | { |
2668 | bt_message *msg; | |
3adcb386 | 2669 | bt_self_component *self_comp = msg_it->self_comp; |
495490c5 PP |
2670 | uint64_t beginning_raw_value = UINT64_C(-1); |
2671 | uint64_t end_raw_value = UINT64_C(-1); | |
495490c5 | 2672 | |
e5d25da2 | 2673 | BT_ASSERT(msg_it->self_msg_iter); |
3adcb386 FD |
2674 | BT_ASSERT(msg_it->stream); |
2675 | BT_ASSERT(msg_it->meta.sc->has_discarded_events); | |
495490c5 | 2676 | |
3adcb386 FD |
2677 | if (msg_it->meta.sc->discarded_events_have_default_cs) { |
2678 | if (msg_it->prev_packet_snapshots.discarded_events == UINT64_C(-1)) { | |
afd45274 PP |
2679 | /* |
2680 | * We discarded events, but before (and possibly | |
2681 | * including) the current packet: use this packet's time | |
2682 | * range, and do not have a specific count. | |
2683 | */ | |
3adcb386 FD |
2684 | beginning_raw_value = msg_it->snapshots.beginning_clock; |
2685 | end_raw_value = msg_it->snapshots.end_clock; | |
afd45274 | 2686 | } else { |
3adcb386 FD |
2687 | beginning_raw_value = msg_it->prev_packet_snapshots.end_clock; |
2688 | end_raw_value = msg_it->snapshots.end_clock; | |
afd45274 | 2689 | } |
495490c5 | 2690 | |
afd45274 PP |
2691 | BT_ASSERT(beginning_raw_value != UINT64_C(-1)); |
2692 | BT_ASSERT(end_raw_value != UINT64_C(-1)); | |
495490c5 | 2693 | msg = bt_message_discarded_events_create_with_default_clock_snapshots( |
e5d25da2 | 2694 | msg_it->self_msg_iter, msg_it->stream, beginning_raw_value, |
495490c5 PP |
2695 | end_raw_value); |
2696 | } else { | |
e5d25da2 | 2697 | msg = bt_message_discarded_events_create(msg_it->self_msg_iter, |
3adcb386 | 2698 | msg_it->stream); |
495490c5 PP |
2699 | } |
2700 | ||
2701 | if (!msg) { | |
2246e99d FD |
2702 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2703 | "Cannot create discarded events message: " | |
3adcb386 FD |
2704 | "msg-it-addr=%p, stream-addr=%p", |
2705 | msg_it, msg_it->stream); | |
308adb47 | 2706 | goto end; |
495490c5 PP |
2707 | } |
2708 | ||
3adcb386 | 2709 | if (msg_it->prev_packet_snapshots.discarded_events != UINT64_C(-1)) { |
afd45274 | 2710 | bt_message_discarded_events_set_count(msg, |
3adcb386 FD |
2711 | msg_it->snapshots.discarded_events - |
2712 | msg_it->prev_packet_snapshots.discarded_events); | |
495490c5 PP |
2713 | } |
2714 | ||
308adb47 FD |
2715 | end: |
2716 | return msg; | |
495490c5 PP |
2717 | } |
2718 | ||
2719 | static | |
18a1979b | 2720 | bt_message *create_msg_discarded_packets(struct ctf_msg_iter *msg_it) |
495490c5 PP |
2721 | { |
2722 | bt_message *msg; | |
3adcb386 | 2723 | bt_self_component *self_comp = msg_it->self_comp; |
495490c5 | 2724 | |
e5d25da2 | 2725 | BT_ASSERT(msg_it->self_msg_iter); |
3adcb386 FD |
2726 | BT_ASSERT(msg_it->stream); |
2727 | BT_ASSERT(msg_it->meta.sc->has_discarded_packets); | |
2728 | BT_ASSERT(msg_it->prev_packet_snapshots.packets != | |
495490c5 PP |
2729 | UINT64_C(-1)); |
2730 | ||
3adcb386 FD |
2731 | if (msg_it->meta.sc->discarded_packets_have_default_cs) { |
2732 | BT_ASSERT(msg_it->prev_packet_snapshots.end_clock != UINT64_C(-1)); | |
2733 | BT_ASSERT(msg_it->snapshots.beginning_clock != UINT64_C(-1)); | |
495490c5 | 2734 | msg = bt_message_discarded_packets_create_with_default_clock_snapshots( |
e5d25da2 | 2735 | msg_it->self_msg_iter, msg_it->stream, |
3adcb386 FD |
2736 | msg_it->prev_packet_snapshots.end_clock, |
2737 | msg_it->snapshots.beginning_clock); | |
495490c5 | 2738 | } else { |
e5d25da2 | 2739 | msg = bt_message_discarded_packets_create(msg_it->self_msg_iter, |
3adcb386 | 2740 | msg_it->stream); |
495490c5 PP |
2741 | } |
2742 | ||
2743 | if (!msg) { | |
2246e99d FD |
2744 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2745 | "Cannot create discarded packets message: " | |
3adcb386 FD |
2746 | "msg-it-addr=%p, stream-addr=%p", |
2747 | msg_it, msg_it->stream); | |
308adb47 | 2748 | goto end; |
495490c5 PP |
2749 | } |
2750 | ||
2751 | bt_message_discarded_packets_set_count(msg, | |
3adcb386 FD |
2752 | msg_it->snapshots.packets - |
2753 | msg_it->prev_packet_snapshots.packets - 1); | |
308adb47 FD |
2754 | |
2755 | end: | |
2756 | return msg; | |
495490c5 PP |
2757 | } |
2758 | ||
c44c3e70 | 2759 | BT_HIDDEN |
851de941 SM |
2760 | struct ctf_msg_iter *ctf_msg_iter_create( |
2761 | struct ctf_trace_class *tc, | |
e98a2d6e | 2762 | size_t max_request_sz, |
18a1979b | 2763 | struct ctf_msg_iter_medium_ops medops, void *data, |
851de941 SM |
2764 | bt_logging_level log_level, |
2765 | bt_self_component *self_comp, | |
2766 | bt_self_message_iterator *self_msg_iter) | |
e98a2d6e | 2767 | { |
18a1979b | 2768 | struct ctf_msg_iter *msg_it = NULL; |
5cd6d0e5 PP |
2769 | struct bt_bfcr_cbs cbs = { |
2770 | .classes = { | |
2771 | .signed_int = bfcr_signed_int_cb, | |
2772 | .unsigned_int = bfcr_unsigned_int_cb, | |
2773 | .floating_point = bfcr_floating_point_cb, | |
2774 | .string_begin = bfcr_string_begin_cb, | |
2775 | .string = bfcr_string_cb, | |
2776 | .string_end = bfcr_string_end_cb, | |
2777 | .compound_begin = bfcr_compound_begin_cb, | |
2778 | .compound_end = bfcr_compound_end_cb, | |
e98a2d6e PP |
2779 | }, |
2780 | .query = { | |
5cd6d0e5 PP |
2781 | .get_sequence_length = bfcr_get_sequence_length_cb, |
2782 | .borrow_variant_selected_field_class = bfcr_borrow_variant_selected_field_class_cb, | |
e98a2d6e PP |
2783 | }, |
2784 | }; | |
2785 | ||
44c440bc | 2786 | BT_ASSERT(tc); |
f6ccaed9 | 2787 | BT_ASSERT(medops.request_bytes); |
312c056a | 2788 | BT_ASSERT(medops.borrow_stream); |
c9694de4 SM |
2789 | BT_ASSERT(max_request_sz > 0); |
2790 | ||
eb7f6c4f | 2791 | BT_COMP_LOG_CUR_LVL(BT_LOG_DEBUG, log_level, self_comp, |
ea14c7dd | 2792 | "Creating CTF plugin message iterator: " |
862ca4ed | 2793 | "trace-addr=%p, max-request-size=%zu, " |
ea14c7dd PP |
2794 | "data=%p, log-level=%s", tc, max_request_sz, data, |
2795 | bt_common_logging_level_string(log_level)); | |
18a1979b | 2796 | msg_it = g_new0(struct ctf_msg_iter, 1); |
3adcb386 | 2797 | if (!msg_it) { |
eb7f6c4f | 2798 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_comp, |
ea14c7dd | 2799 | "Failed to allocate one CTF plugin message iterator."); |
e98a2d6e PP |
2800 | goto end; |
2801 | } | |
3adcb386 | 2802 | msg_it->self_comp = self_comp; |
851de941 | 2803 | msg_it->self_msg_iter = self_msg_iter; |
3adcb386 FD |
2804 | msg_it->log_level = log_level; |
2805 | msg_it->meta.tc = tc; | |
2806 | msg_it->medium.medops = medops; | |
2807 | msg_it->medium.max_request_sz = max_request_sz; | |
2808 | msg_it->medium.data = data; | |
2809 | msg_it->stack = stack_new(msg_it); | |
2810 | msg_it->stored_values = g_array_new(FALSE, TRUE, sizeof(uint64_t)); | |
2811 | g_array_set_size(msg_it->stored_values, tc->stored_value_count); | |
2812 | ||
2813 | if (!msg_it->stack) { | |
2246e99d FD |
2814 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2815 | "Failed to create field stack."); | |
c44c3e70 | 2816 | goto error; |
e98a2d6e PP |
2817 | } |
2818 | ||
3adcb386 FD |
2819 | msg_it->bfcr = bt_bfcr_create(cbs, msg_it, log_level, NULL); |
2820 | if (!msg_it->bfcr) { | |
2246e99d FD |
2821 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2822 | "Failed to create binary class reader (BFCR)."); | |
c44c3e70 | 2823 | goto error; |
e98a2d6e PP |
2824 | } |
2825 | ||
18a1979b | 2826 | ctf_msg_iter_reset(msg_it); |
eb7f6c4f | 2827 | BT_COMP_LOGD("Created CTF plugin message iterator: " |
862ca4ed | 2828 | "trace-addr=%p, max-request-size=%zu, " |
3adcb386 FD |
2829 | "data=%p, msg-it-addr=%p, log-level=%s", |
2830 | tc, max_request_sz, data, msg_it, | |
ea14c7dd | 2831 | bt_common_logging_level_string(log_level)); |
3adcb386 | 2832 | msg_it->cur_packet_offset = 0; |
fdf0e7a0 | 2833 | |
e98a2d6e | 2834 | end: |
3adcb386 | 2835 | return msg_it; |
fdf0e7a0 | 2836 | |
c44c3e70 | 2837 | error: |
18a1979b | 2838 | ctf_msg_iter_destroy(msg_it); |
3adcb386 | 2839 | msg_it = NULL; |
c44c3e70 | 2840 | goto end; |
e98a2d6e PP |
2841 | } |
2842 | ||
18a1979b | 2843 | void ctf_msg_iter_destroy(struct ctf_msg_iter *msg_it) |
e98a2d6e | 2844 | { |
3adcb386 FD |
2845 | BT_PACKET_PUT_REF_AND_RESET(msg_it->packet); |
2846 | BT_STREAM_PUT_REF_AND_RESET(msg_it->stream); | |
2847 | release_all_dscopes(msg_it); | |
e98a2d6e | 2848 | |
3adcb386 | 2849 | BT_COMP_LOGD("Destroying CTF plugin message iterator: addr=%p", msg_it); |
fdf0e7a0 | 2850 | |
3adcb386 | 2851 | if (msg_it->stack) { |
eb7f6c4f | 2852 | BT_COMP_LOGD_STR("Destroying field stack."); |
3adcb386 | 2853 | stack_destroy(msg_it->stack); |
e98a2d6e PP |
2854 | } |
2855 | ||
3adcb386 FD |
2856 | if (msg_it->bfcr) { |
2857 | BT_COMP_LOGD("Destroying BFCR: bfcr-addr=%p", msg_it->bfcr); | |
2858 | bt_bfcr_destroy(msg_it->bfcr); | |
e98a2d6e PP |
2859 | } |
2860 | ||
3adcb386 FD |
2861 | if (msg_it->stored_values) { |
2862 | g_array_free(msg_it->stored_values, TRUE); | |
5f870343 | 2863 | } |
fdf0e7a0 | 2864 | |
3adcb386 | 2865 | g_free(msg_it); |
e98a2d6e PP |
2866 | } |
2867 | ||
18a1979b SM |
2868 | enum ctf_msg_iter_status ctf_msg_iter_get_next_message( |
2869 | struct ctf_msg_iter *msg_it, | |
cad707e2 | 2870 | const bt_message **message) |
e98a2d6e | 2871 | { |
18a1979b | 2872 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 2873 | bt_self_component *self_comp = msg_it->self_comp; |
e98a2d6e | 2874 | |
3adcb386 | 2875 | BT_ASSERT_DBG(msg_it); |
98b15851 | 2876 | BT_ASSERT_DBG(message); |
3adcb386 | 2877 | BT_COMP_LOGD("Getting next message: msg-it-addr=%p", msg_it); |
fdf0e7a0 | 2878 | |
e98a2d6e | 2879 | while (true) { |
3adcb386 | 2880 | status = handle_state(msg_it); |
18a1979b SM |
2881 | if (G_UNLIKELY(status == CTF_MSG_ITER_STATUS_AGAIN)) { |
2882 | BT_COMP_LOGD_STR("Medium returned CTF_MSG_ITER_STATUS_AGAIN."); | |
7cdc2bab | 2883 | goto end; |
18a1979b | 2884 | } else if (G_UNLIKELY(status != CTF_MSG_ITER_STATUS_OK)) { |
2246e99d | 2885 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
3adcb386 FD |
2886 | "Cannot handle state: msg-it-addr=%p, state=%s", |
2887 | msg_it, state_string(msg_it->state)); | |
e98a2d6e PP |
2888 | goto end; |
2889 | } | |
2890 | ||
3adcb386 | 2891 | switch (msg_it->state) { |
fc917f65 | 2892 | case STATE_EMIT_MSG_EVENT: |
3adcb386 | 2893 | BT_ASSERT_DBG(msg_it->event_msg); |
1eb28907 FD |
2894 | |
2895 | /* | |
2896 | * Check if we need to emit the delayed packet | |
2897 | * beginning message instead of the event message. | |
2898 | */ | |
3adcb386 FD |
2899 | if (G_UNLIKELY(msg_it->emit_delayed_packet_beginning_msg)) { |
2900 | *message = emit_delayed_packet_beg_msg(msg_it); | |
1eb28907 | 2901 | if (!*message) { |
18a1979b | 2902 | status = CTF_MSG_ITER_STATUS_ERROR; |
1eb28907 FD |
2903 | } |
2904 | ||
2905 | /* | |
2906 | * Don't forget to emit the event message of | |
2907 | * the event record that was just decoded. | |
2908 | */ | |
3adcb386 | 2909 | msg_it->state = STATE_EMIT_QUEUED_MSG_EVENT; |
1eb28907 FD |
2910 | |
2911 | } else { | |
3adcb386 FD |
2912 | *message = msg_it->event_msg; |
2913 | msg_it->event_msg = NULL; | |
1eb28907 | 2914 | } |
495490c5 PP |
2915 | goto end; |
2916 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
2917 | /* create_msg_discared_events() logs errors */ | |
3adcb386 | 2918 | *message = create_msg_discarded_events(msg_it); |
495490c5 PP |
2919 | |
2920 | if (!*message) { | |
18a1979b | 2921 | status = CTF_MSG_ITER_STATUS_ERROR; |
495490c5 PP |
2922 | } |
2923 | ||
2924 | goto end; | |
2925 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
2926 | /* create_msg_discared_packets() logs errors */ | |
3adcb386 | 2927 | *message = create_msg_discarded_packets(msg_it); |
495490c5 PP |
2928 | |
2929 | if (!*message) { | |
18a1979b | 2930 | status = CTF_MSG_ITER_STATUS_ERROR; |
495490c5 PP |
2931 | } |
2932 | ||
fc917f65 PP |
2933 | goto end; |
2934 | case STATE_EMIT_MSG_PACKET_BEGINNING: | |
3adcb386 FD |
2935 | if (G_UNLIKELY(msg_it->meta.tc->quirks.barectf_event_before_packet)) { |
2936 | msg_it->emit_delayed_packet_beginning_msg = true; | |
1eb28907 FD |
2937 | /* |
2938 | * There is no message to return yet as this | |
2939 | * packet beginning message is delayed until we | |
2940 | * decode the first event message of the | |
2941 | * packet. | |
2942 | */ | |
2943 | break; | |
2944 | } else { | |
2945 | /* create_msg_packet_beginning() logs errors */ | |
3adcb386 | 2946 | *message = create_msg_packet_beginning(msg_it, false); |
1eb28907 | 2947 | if (!*message) { |
18a1979b | 2948 | status = CTF_MSG_ITER_STATUS_ERROR; |
1eb28907 | 2949 | } |
f42867e2 | 2950 | } |
44c440bc | 2951 | |
f42867e2 | 2952 | goto end; |
fc917f65 PP |
2953 | case STATE_EMIT_MSG_PACKET_END_SINGLE: |
2954 | case STATE_EMIT_MSG_PACKET_END_MULTI: | |
2955 | /* create_msg_packet_end() logs errors */ | |
3adcb386 | 2956 | *message = create_msg_packet_end(msg_it); |
44c440bc | 2957 | |
d6e69534 | 2958 | if (!*message) { |
18a1979b | 2959 | status = CTF_MSG_ITER_STATUS_ERROR; |
e98a2d6e | 2960 | } |
312c056a | 2961 | |
495490c5 | 2962 | goto end; |
fc917f65 | 2963 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
495490c5 | 2964 | /* create_msg_stream_beginning() logs errors */ |
3adcb386 | 2965 | *message = create_msg_stream_beginning(msg_it); |
bc0ae364 | 2966 | msg_it->emit_stream_beginning_message = false; |
1cda4ff4 | 2967 | msg_it->emit_stream_end_message = true; |
fc917f65 | 2968 | |
495490c5 | 2969 | if (!*message) { |
18a1979b | 2970 | status = CTF_MSG_ITER_STATUS_ERROR; |
fc917f65 PP |
2971 | } |
2972 | ||
495490c5 | 2973 | goto end; |
fc917f65 | 2974 | case STATE_EMIT_MSG_STREAM_END: |
495490c5 | 2975 | /* create_msg_stream_end() logs errors */ |
3adcb386 | 2976 | *message = create_msg_stream_end(msg_it); |
1cda4ff4 | 2977 | msg_it->emit_stream_end_message = false; |
fc917f65 | 2978 | |
495490c5 | 2979 | if (!*message) { |
18a1979b | 2980 | status = CTF_MSG_ITER_STATUS_ERROR; |
fc917f65 PP |
2981 | } |
2982 | ||
495490c5 | 2983 | goto end; |
fc917f65 | 2984 | case STATE_DONE: |
18a1979b | 2985 | status = CTF_MSG_ITER_STATUS_EOF; |
e98a2d6e PP |
2986 | goto end; |
2987 | default: | |
2988 | /* Non-emitting state: continue */ | |
2989 | break; | |
2990 | } | |
2991 | } | |
2992 | ||
2993 | end: | |
2994 | return status; | |
2995 | } | |
87187cbf | 2996 | |
41693723 | 2997 | static |
18a1979b | 2998 | enum ctf_msg_iter_status decode_until_state( struct ctf_msg_iter *msg_it, |
27f26617 | 2999 | enum state target_state_1, enum state target_state_2) |
87187cbf | 3000 | { |
18a1979b | 3001 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 3002 | bt_self_component *self_comp = msg_it->self_comp; |
87187cbf | 3003 | |
3adcb386 | 3004 | BT_ASSERT_DBG(msg_it); |
87187cbf | 3005 | |
3682dd06 FD |
3006 | do { |
3007 | /* | |
3008 | * Check if we reached the state at which we want to stop | |
3009 | * decoding. | |
3010 | */ | |
3adcb386 FD |
3011 | if (msg_it->state == target_state_1 || |
3012 | msg_it->state == target_state_2) { | |
3682dd06 FD |
3013 | goto end; |
3014 | } | |
87187cbf | 3015 | |
3adcb386 | 3016 | status = handle_state(msg_it); |
18a1979b SM |
3017 | if (G_UNLIKELY(status == CTF_MSG_ITER_STATUS_AGAIN)) { |
3018 | BT_COMP_LOGD_STR("Medium returned CTF_MSG_ITER_STATUS_AGAIN."); | |
87187cbf | 3019 | goto end; |
18a1979b | 3020 | } else if (G_UNLIKELY(status != CTF_MSG_ITER_STATUS_OK)) { |
2246e99d | 3021 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
3adcb386 FD |
3022 | "Cannot handle state: msg-it-addr=%p, state=%s", |
3023 | msg_it, state_string(msg_it->state)); | |
87187cbf PP |
3024 | goto end; |
3025 | } | |
3026 | ||
3adcb386 | 3027 | switch (msg_it->state) { |
87187cbf | 3028 | case STATE_INIT: |
44269abb | 3029 | case STATE_SWITCH_PACKET: |
87187cbf PP |
3030 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: |
3031 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
3032 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
3033 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
3034 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
3035 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
fc917f65 | 3036 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
495490c5 PP |
3037 | case STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS: |
3038 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
3039 | case STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS: | |
3040 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
3682dd06 FD |
3041 | case STATE_EMIT_MSG_PACKET_BEGINNING: |
3042 | case STATE_DSCOPE_EVENT_HEADER_BEGIN: | |
3043 | case STATE_DSCOPE_EVENT_HEADER_CONTINUE: | |
3044 | case STATE_AFTER_EVENT_HEADER: | |
3045 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN: | |
3046 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE: | |
3047 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN: | |
3048 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE: | |
3049 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
3050 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
3051 | case STATE_EMIT_MSG_EVENT: | |
1eb28907 | 3052 | case STATE_EMIT_QUEUED_MSG_EVENT: |
3682dd06 FD |
3053 | case STATE_SKIP_PACKET_PADDING: |
3054 | case STATE_EMIT_MSG_PACKET_END_MULTI: | |
3055 | case STATE_EMIT_MSG_PACKET_END_SINGLE: | |
1eb28907 | 3056 | case STATE_EMIT_QUEUED_MSG_PACKET_END: |
3682dd06 | 3057 | case STATE_EMIT_MSG_STREAM_END: |
87187cbf | 3058 | break; |
3682dd06 FD |
3059 | case STATE_DONE: |
3060 | /* fall-through */ | |
87187cbf | 3061 | default: |
3682dd06 | 3062 | /* We should never get to the STATE_DONE state. */ |
3adcb386 FD |
3063 | BT_COMP_LOGF("Unexpected state: msg-it-addr=%p, state=%s", |
3064 | msg_it, state_string(msg_it->state)); | |
498e7994 | 3065 | bt_common_abort(); |
87187cbf | 3066 | } |
3682dd06 | 3067 | } while (true); |
87187cbf | 3068 | |
41693723 | 3069 | end: |
3682dd06 FD |
3070 | return status; |
3071 | } | |
3072 | ||
3073 | static | |
18a1979b SM |
3074 | enum ctf_msg_iter_status read_packet_header_context_fields( |
3075 | struct ctf_msg_iter *msg_it) | |
3682dd06 FD |
3076 | { |
3077 | int ret; | |
18a1979b | 3078 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3682dd06 | 3079 | |
3adcb386 | 3080 | status = decode_until_state(msg_it, STATE_EMIT_MSG_PACKET_BEGINNING, -1); |
18a1979b | 3081 | if (status != CTF_MSG_ITER_STATUS_OK) { |
3682dd06 FD |
3082 | goto end; |
3083 | } | |
3084 | ||
3adcb386 | 3085 | ret = set_current_packet_content_sizes(msg_it); |
312c056a | 3086 | if (ret) { |
18a1979b | 3087 | status = CTF_MSG_ITER_STATUS_ERROR; |
3682dd06 | 3088 | goto end; |
312c056a PP |
3089 | } |
3090 | ||
3682dd06 | 3091 | end: |
87187cbf PP |
3092 | return status; |
3093 | } | |
6de92955 | 3094 | |
9e0c8dbb | 3095 | BT_HIDDEN |
18a1979b | 3096 | enum ctf_msg_iter_status ctf_msg_iter_seek(struct ctf_msg_iter *msg_it, |
fc917f65 | 3097 | off_t offset) |
9e0c8dbb | 3098 | { |
18a1979b | 3099 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
18a1979b | 3100 | enum ctf_msg_iter_medium_status medium_status; |
9e0c8dbb | 3101 | |
3adcb386 | 3102 | BT_ASSERT(msg_it); |
30174f59 | 3103 | BT_ASSERT(offset >= 0); |
026f1a5a | 3104 | BT_ASSERT(msg_it->medium.medops.seek); |
9e0c8dbb | 3105 | |
701a0903 | 3106 | medium_status = msg_it->medium.medops.seek(offset, msg_it->medium.data); |
18a1979b SM |
3107 | if (medium_status != CTF_MSG_ITER_MEDIUM_STATUS_OK) { |
3108 | if (medium_status == CTF_MSG_ITER_MEDIUM_STATUS_EOF) { | |
3109 | status = CTF_MSG_ITER_STATUS_EOF; | |
9e0c8dbb | 3110 | } else { |
18a1979b | 3111 | status = CTF_MSG_ITER_STATUS_ERROR; |
9e0c8dbb JG |
3112 | goto end; |
3113 | } | |
3114 | } | |
3115 | ||
18a1979b | 3116 | ctf_msg_iter_reset(msg_it); |
3adcb386 | 3117 | msg_it->cur_packet_offset = offset; |
44c440bc | 3118 | |
9e0c8dbb | 3119 | end: |
3a246966 | 3120 | return status; |
9e0c8dbb JG |
3121 | } |
3122 | ||
27f26617 | 3123 | static |
18a1979b SM |
3124 | enum ctf_msg_iter_status clock_snapshot_at_msg_iter_state( |
3125 | struct ctf_msg_iter *msg_it, enum state target_state_1, | |
27f26617 FD |
3126 | enum state target_state_2, uint64_t *clock_snapshot) |
3127 | { | |
18a1979b | 3128 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
27f26617 | 3129 | |
3adcb386 | 3130 | BT_ASSERT_DBG(msg_it); |
98b15851 | 3131 | BT_ASSERT_DBG(clock_snapshot); |
3adcb386 | 3132 | status = decode_until_state(msg_it, target_state_1, target_state_2); |
18a1979b | 3133 | if (status != CTF_MSG_ITER_STATUS_OK) { |
27f26617 FD |
3134 | goto end; |
3135 | } | |
3136 | ||
3adcb386 | 3137 | *clock_snapshot = msg_it->default_clock_snapshot; |
27f26617 FD |
3138 | end: |
3139 | return status; | |
3140 | } | |
3141 | ||
3142 | BT_HIDDEN | |
18a1979b SM |
3143 | enum ctf_msg_iter_status ctf_msg_iter_curr_packet_first_event_clock_snapshot( |
3144 | struct ctf_msg_iter *msg_it, uint64_t *first_clock_snapshot) | |
27f26617 | 3145 | { |
3adcb386 | 3146 | return clock_snapshot_at_msg_iter_state(msg_it, |
27f26617 FD |
3147 | STATE_AFTER_EVENT_HEADER, -1, first_clock_snapshot); |
3148 | } | |
3149 | ||
3150 | BT_HIDDEN | |
18a1979b SM |
3151 | enum ctf_msg_iter_status ctf_msg_iter_curr_packet_last_event_clock_snapshot( |
3152 | struct ctf_msg_iter *msg_it, uint64_t *last_clock_snapshot) | |
27f26617 | 3153 | { |
3adcb386 | 3154 | return clock_snapshot_at_msg_iter_state(msg_it, |
27f26617 FD |
3155 | STATE_EMIT_MSG_PACKET_END_SINGLE, |
3156 | STATE_EMIT_MSG_PACKET_END_MULTI, last_clock_snapshot); | |
3157 | } | |
3158 | ||
44c440bc | 3159 | BT_HIDDEN |
18a1979b SM |
3160 | enum ctf_msg_iter_status ctf_msg_iter_get_packet_properties( |
3161 | struct ctf_msg_iter *msg_it, | |
3162 | struct ctf_msg_iter_packet_properties *props) | |
44c440bc | 3163 | { |
18a1979b | 3164 | enum ctf_msg_iter_status status; |
41693723 | 3165 | |
3adcb386 | 3166 | BT_ASSERT_DBG(msg_it); |
98b15851 | 3167 | BT_ASSERT_DBG(props); |
3adcb386 | 3168 | status = read_packet_header_context_fields(msg_it); |
18a1979b | 3169 | if (status != CTF_MSG_ITER_STATUS_OK) { |
41693723 PP |
3170 | goto end; |
3171 | } | |
44c440bc | 3172 | |
3adcb386 FD |
3173 | props->exp_packet_total_size = msg_it->cur_exp_packet_total_size; |
3174 | props->exp_packet_content_size = msg_it->cur_exp_packet_content_size; | |
3175 | props->stream_class_id = (uint64_t) msg_it->cur_stream_class_id; | |
3176 | props->data_stream_id = msg_it->cur_data_stream_id; | |
3177 | props->snapshots.discarded_events = msg_it->snapshots.discarded_events; | |
3178 | props->snapshots.packets = msg_it->snapshots.packets; | |
3179 | props->snapshots.beginning_clock = msg_it->snapshots.beginning_clock; | |
3180 | props->snapshots.end_clock = msg_it->snapshots.end_clock; | |
41693723 PP |
3181 | |
3182 | end: | |
3183 | return status; | |
9e0c8dbb | 3184 | } |
fc917f65 | 3185 | |
de24a43f | 3186 | BT_HIDDEN |
18a1979b | 3187 | void ctf_msg_iter_set_dry_run(struct ctf_msg_iter *msg_it, |
de24a43f FD |
3188 | bool val) |
3189 | { | |
3adcb386 | 3190 | msg_it->dry_run = val; |
de24a43f | 3191 | } |