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