Commit | Line | Data |
---|---|---|
e98a2d6e | 1 | /* |
d6e69534 | 2 | * Babeltrace - CTF message iterator |
06a626b8 | 3 | * |
44c440bc PP |
4 | * Copyright (c) 2015-2018 EfficiOS Inc. and Linux Foundation |
5 | * Copyright (c) 2015-2018 Philippe Proulx <pproulx@efficios.com> | |
e98a2d6e PP |
6 | * |
7 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
8 | * of this software and associated documentation files (the "Software"), to deal | |
9 | * in the Software without restriction, including without limitation the rights | |
10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
11 | * copies of the Software, and to permit persons to whom the Software is | |
12 | * furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice shall be included in | |
15 | * all copies or substantial portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
20 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
23 | * SOFTWARE. | |
24 | */ | |
25 | ||
3adcb386 FD |
26 | #define BT_COMP_LOG_SELF_COMP (msg_it->self_comp) |
27 | #define BT_LOG_OUTPUT_LEVEL (msg_it->log_level) | |
350ad6c1 | 28 | #define BT_LOG_TAG "PLUGIN/CTF/MSG-ITER" |
d9c39b0a | 29 | #include "logging/comp-logging.h" |
fdf0e7a0 | 30 | |
e98a2d6e PP |
31 | #include <stdint.h> |
32 | #include <inttypes.h> | |
33 | #include <stdio.h> | |
34 | #include <stddef.h> | |
35 | #include <stdbool.h> | |
578e048b | 36 | #include "common/assert.h" |
e98a2d6e | 37 | #include <string.h> |
3fadfbc0 | 38 | #include <babeltrace2/babeltrace.h> |
578e048b | 39 | #include "common/common.h" |
e98a2d6e | 40 | #include <glib.h> |
0fbb9a9f | 41 | #include <stdlib.h> |
e98a2d6e | 42 | |
d6e69534 | 43 | #include "msg-iter.h" |
5cd6d0e5 | 44 | #include "../bfcr/bfcr.h" |
e98a2d6e | 45 | |
18a1979b | 46 | struct ctf_msg_iter; |
e98a2d6e PP |
47 | |
48 | /* A visit stack entry */ | |
49 | struct stack_entry { | |
50 | /* | |
51 | * Current base field, one of: | |
52 | * | |
53 | * * string | |
54 | * * structure | |
55 | * * array | |
56 | * * sequence | |
57 | * * variant | |
58 | * | |
312c056a | 59 | * Field is borrowed. |
e98a2d6e | 60 | */ |
b19ff26f | 61 | bt_field *base; |
e98a2d6e | 62 | |
44c440bc | 63 | /* Index of next field to set */ |
e98a2d6e PP |
64 | size_t index; |
65 | }; | |
66 | ||
18a1979b | 67 | struct ctf_msg_iter; |
ea14c7dd | 68 | |
e98a2d6e PP |
69 | /* Visit stack */ |
70 | struct stack { | |
18a1979b | 71 | struct ctf_msg_iter *msg_it; |
ea14c7dd | 72 | |
afe86a06 PP |
73 | /* Entries (struct stack_entry) */ |
74 | GArray *entries; | |
75 | ||
76 | /* Number of active entries */ | |
77 | size_t size; | |
e98a2d6e PP |
78 | }; |
79 | ||
80 | /* State */ | |
81 | enum state { | |
82 | STATE_INIT, | |
44269abb | 83 | STATE_SWITCH_PACKET, |
e98a2d6e PP |
84 | STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN, |
85 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
86 | STATE_AFTER_TRACE_PACKET_HEADER, | |
87 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN, | |
88 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
89 | STATE_AFTER_STREAM_PACKET_CONTEXT, | |
fc917f65 | 90 | STATE_EMIT_MSG_STREAM_BEGINNING, |
495490c5 PP |
91 | STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS, |
92 | STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS, | |
93 | STATE_EMIT_MSG_DISCARDED_EVENTS, | |
94 | STATE_EMIT_MSG_DISCARDED_PACKETS, | |
fc917f65 | 95 | STATE_EMIT_MSG_PACKET_BEGINNING, |
44c440bc PP |
96 | STATE_DSCOPE_EVENT_HEADER_BEGIN, |
97 | STATE_DSCOPE_EVENT_HEADER_CONTINUE, | |
98 | STATE_AFTER_EVENT_HEADER, | |
99 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN, | |
100 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE, | |
101 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN, | |
102 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE, | |
e98a2d6e PP |
103 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, |
104 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
d6e69534 | 105 | STATE_EMIT_MSG_EVENT, |
1eb28907 | 106 | STATE_EMIT_QUEUED_MSG_EVENT, |
e98a2d6e | 107 | STATE_SKIP_PACKET_PADDING, |
fc917f65 PP |
108 | STATE_EMIT_MSG_PACKET_END_MULTI, |
109 | STATE_EMIT_MSG_PACKET_END_SINGLE, | |
1eb28907 | 110 | STATE_EMIT_QUEUED_MSG_PACKET_END, |
fc917f65 PP |
111 | STATE_EMIT_MSG_STREAM_END, |
112 | STATE_DONE, | |
e98a2d6e PP |
113 | }; |
114 | ||
495490c5 PP |
115 | struct end_of_packet_snapshots { |
116 | uint64_t discarded_events; | |
117 | uint64_t packets; | |
118 | uint64_t beginning_clock; | |
119 | uint64_t end_clock; | |
120 | }; | |
121 | ||
d6e69534 | 122 | /* CTF message iterator */ |
18a1979b | 123 | struct ctf_msg_iter { |
e98a2d6e PP |
124 | /* Visit stack */ |
125 | struct stack *stack; | |
126 | ||
d6e69534 | 127 | /* Current message iterator to create messages (weak) */ |
e5d25da2 | 128 | bt_self_message_iterator *self_msg_iter; |
5c563278 | 129 | |
de24a43f FD |
130 | /* |
131 | * True if library objects are unavailable during the decoding and | |
132 | * should not be created/used. | |
133 | */ | |
134 | bool dry_run; | |
135 | ||
e98a2d6e PP |
136 | /* |
137 | * Current dynamic scope field pointer. | |
138 | * | |
312c056a PP |
139 | * This is set by read_dscope_begin_state() and contains the |
140 | * value of one of the pointers in `dscopes` below. | |
e98a2d6e | 141 | */ |
b19ff26f | 142 | bt_field *cur_dscope_field; |
e98a2d6e | 143 | |
44c440bc PP |
144 | /* |
145 | * True if we're done filling a string field from a text | |
146 | * array/sequence payload. | |
147 | */ | |
148 | bool done_filling_string; | |
149 | ||
150 | /* Trace and classes */ | |
41693723 PP |
151 | /* True to set IR fields */ |
152 | bool set_ir_fields; | |
153 | ||
e98a2d6e | 154 | struct { |
44c440bc PP |
155 | struct ctf_trace_class *tc; |
156 | struct ctf_stream_class *sc; | |
157 | struct ctf_event_class *ec; | |
e98a2d6e PP |
158 | } meta; |
159 | ||
160 | /* Current packet (NULL if not created yet) */ | |
b19ff26f | 161 | bt_packet *packet; |
e98a2d6e | 162 | |
af87daef | 163 | /* Current stream (NULL if not set yet) */ |
b19ff26f | 164 | bt_stream *stream; |
af87daef | 165 | |
312c056a | 166 | /* Current event (NULL if not created yet) */ |
b19ff26f | 167 | bt_event *event; |
312c056a | 168 | |
d6e69534 PP |
169 | /* Current event message (NULL if not created yet) */ |
170 | bt_message *event_msg; | |
312c056a | 171 | |
1eb28907 FD |
172 | /* |
173 | * True if we need to emit a packet beginning message before we emit | |
174 | * the next event message or the packet end message. | |
175 | */ | |
176 | bool emit_delayed_packet_beginning_msg; | |
177 | ||
bc0ae364 SM |
178 | /* |
179 | * True if this is the first packet we are reading, and therefore if we | |
180 | * should emit a stream beginning message. | |
181 | */ | |
182 | bool emit_stream_beginning_message; | |
183 | ||
44c440bc | 184 | /* Database of current dynamic scopes */ |
e98a2d6e | 185 | struct { |
b19ff26f | 186 | bt_field *stream_packet_context; |
b19ff26f PP |
187 | bt_field *event_common_context; |
188 | bt_field *event_spec_context; | |
189 | bt_field *event_payload; | |
e98a2d6e PP |
190 | } dscopes; |
191 | ||
192 | /* Current state */ | |
193 | enum state state; | |
194 | ||
2cf1d51e | 195 | /* Current medium buffer data */ |
e98a2d6e PP |
196 | struct { |
197 | /* Last address provided by medium */ | |
198 | const uint8_t *addr; | |
199 | ||
200 | /* Buffer size provided by medium (bytes) */ | |
201 | size_t sz; | |
202 | ||
203 | /* Offset within whole packet of addr (bits) */ | |
204 | size_t packet_offset; | |
205 | ||
206 | /* Current position from addr (bits) */ | |
207 | size_t at; | |
174e773b PP |
208 | |
209 | /* Position of the last event header from addr (bits) */ | |
210 | size_t last_eh_at; | |
e98a2d6e PP |
211 | } buf; |
212 | ||
213 | /* Binary type reader */ | |
5cd6d0e5 | 214 | struct bt_bfcr *bfcr; |
e98a2d6e | 215 | |
2cf1d51e | 216 | /* Current medium data */ |
e98a2d6e | 217 | struct { |
18a1979b | 218 | struct ctf_msg_iter_medium_ops medops; |
e98a2d6e PP |
219 | size_t max_request_sz; |
220 | void *data; | |
221 | } medium; | |
222 | ||
223 | /* Current packet size (bits) (-1 if unknown) */ | |
44c440bc | 224 | int64_t cur_exp_packet_total_size; |
e98a2d6e PP |
225 | |
226 | /* Current content size (bits) (-1 if unknown) */ | |
44c440bc | 227 | int64_t cur_exp_packet_content_size; |
c44c3e70 | 228 | |
44c440bc PP |
229 | /* Current stream class ID */ |
230 | int64_t cur_stream_class_id; | |
9e0c8dbb | 231 | |
44c440bc PP |
232 | /* Current event class ID */ |
233 | int64_t cur_event_class_id; | |
5f870343 | 234 | |
44c440bc PP |
235 | /* Current data stream ID */ |
236 | int64_t cur_data_stream_id; | |
5f870343 JG |
237 | |
238 | /* | |
44c440bc PP |
239 | * Offset, in the underlying media, of the current packet's |
240 | * start (-1 if unknown). | |
5f870343 | 241 | */ |
44c440bc PP |
242 | off_t cur_packet_offset; |
243 | ||
244 | /* Default clock's current value */ | |
605e1019 | 245 | uint64_t default_clock_snapshot; |
5f870343 | 246 | |
495490c5 PP |
247 | /* End of current packet snapshots */ |
248 | struct end_of_packet_snapshots snapshots; | |
249 | ||
250 | /* End of previous packet snapshots */ | |
251 | struct end_of_packet_snapshots prev_packet_snapshots; | |
44c440bc PP |
252 | |
253 | /* Stored values (for sequence lengths, variant tags) */ | |
254 | GArray *stored_values; | |
ea14c7dd PP |
255 | |
256 | /* Iterator's current log level */ | |
257 | bt_logging_level log_level; | |
eb7f6c4f PP |
258 | |
259 | /* Iterator's owning self component, or `NULL` if none (query) */ | |
260 | bt_self_component *self_comp; | |
e98a2d6e PP |
261 | }; |
262 | ||
fdf0e7a0 PP |
263 | static inline |
264 | const char *state_string(enum state state) | |
265 | { | |
266 | switch (state) { | |
267 | case STATE_INIT: | |
8a432889 | 268 | return "INIT"; |
44269abb PP |
269 | case STATE_SWITCH_PACKET: |
270 | return "SWITCH_PACKET"; | |
fdf0e7a0 | 271 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: |
8a432889 | 272 | return "DSCOPE_TRACE_PACKET_HEADER_BEGIN"; |
fdf0e7a0 | 273 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: |
8a432889 | 274 | return "DSCOPE_TRACE_PACKET_HEADER_CONTINUE"; |
fdf0e7a0 | 275 | case STATE_AFTER_TRACE_PACKET_HEADER: |
8a432889 | 276 | return "AFTER_TRACE_PACKET_HEADER"; |
fdf0e7a0 | 277 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: |
8a432889 | 278 | return "DSCOPE_STREAM_PACKET_CONTEXT_BEGIN"; |
fdf0e7a0 | 279 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: |
8a432889 | 280 | return "DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE"; |
fdf0e7a0 | 281 | case STATE_AFTER_STREAM_PACKET_CONTEXT: |
8a432889 | 282 | return "AFTER_STREAM_PACKET_CONTEXT"; |
fc917f65 | 283 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
8a432889 | 284 | return "EMIT_MSG_STREAM_BEGINNING"; |
fc917f65 | 285 | case STATE_EMIT_MSG_PACKET_BEGINNING: |
8a432889 | 286 | return "EMIT_MSG_PACKET_BEGINNING"; |
495490c5 | 287 | case STATE_EMIT_MSG_DISCARDED_EVENTS: |
8a432889 | 288 | return "EMIT_MSG_DISCARDED_EVENTS"; |
495490c5 | 289 | case STATE_EMIT_MSG_DISCARDED_PACKETS: |
8a432889 | 290 | return "EMIT_MSG_DISCARDED_PACKETS"; |
44c440bc | 291 | case STATE_DSCOPE_EVENT_HEADER_BEGIN: |
8a432889 | 292 | return "DSCOPE_EVENT_HEADER_BEGIN"; |
44c440bc | 293 | case STATE_DSCOPE_EVENT_HEADER_CONTINUE: |
8a432889 | 294 | return "DSCOPE_EVENT_HEADER_CONTINUE"; |
44c440bc | 295 | case STATE_AFTER_EVENT_HEADER: |
8a432889 | 296 | return "AFTER_EVENT_HEADER"; |
44c440bc | 297 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN: |
8a432889 | 298 | return "DSCOPE_EVENT_COMMON_CONTEXT_BEGIN"; |
44c440bc | 299 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE: |
8a432889 | 300 | return "DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE"; |
44c440bc | 301 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN: |
8a432889 | 302 | return "DSCOPE_EVENT_SPEC_CONTEXT_BEGIN"; |
44c440bc | 303 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE: |
8a432889 | 304 | return "DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE"; |
fdf0e7a0 | 305 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: |
8a432889 | 306 | return "DSCOPE_EVENT_PAYLOAD_BEGIN"; |
fdf0e7a0 | 307 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: |
8a432889 | 308 | return "DSCOPE_EVENT_PAYLOAD_CONTINUE"; |
d6e69534 | 309 | case STATE_EMIT_MSG_EVENT: |
8a432889 | 310 | return "EMIT_MSG_EVENT"; |
1eb28907 FD |
311 | case STATE_EMIT_QUEUED_MSG_EVENT: |
312 | return "EMIT_QUEUED_MSG_EVENT"; | |
fdf0e7a0 | 313 | case STATE_SKIP_PACKET_PADDING: |
8a432889 | 314 | return "SKIP_PACKET_PADDING"; |
fc917f65 | 315 | case STATE_EMIT_MSG_PACKET_END_MULTI: |
8a432889 | 316 | return "EMIT_MSG_PACKET_END_MULTI"; |
fc917f65 | 317 | case STATE_EMIT_MSG_PACKET_END_SINGLE: |
8a432889 | 318 | return "EMIT_MSG_PACKET_END_SINGLE"; |
1eb28907 FD |
319 | case STATE_EMIT_QUEUED_MSG_PACKET_END: |
320 | return "EMIT_QUEUED_MSG_PACKET_END"; | |
fc917f65 | 321 | case STATE_EMIT_MSG_STREAM_END: |
8a432889 | 322 | return "EMIT_MSG_STREAM_END"; |
fc917f65 | 323 | case STATE_DONE: |
8a432889 | 324 | return "DONE"; |
fdf0e7a0 PP |
325 | default: |
326 | return "(unknown)"; | |
327 | } | |
328 | } | |
329 | ||
e98a2d6e | 330 | static |
18a1979b | 331 | struct stack *stack_new(struct ctf_msg_iter *msg_it) |
e98a2d6e | 332 | { |
3adcb386 | 333 | bt_self_component *self_comp = msg_it->self_comp; |
e98a2d6e PP |
334 | struct stack *stack = NULL; |
335 | ||
336 | stack = g_new0(struct stack, 1); | |
337 | if (!stack) { | |
2246e99d FD |
338 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
339 | "Failed to allocate one stack."); | |
e98a2d6e PP |
340 | goto error; |
341 | } | |
342 | ||
3adcb386 | 343 | stack->msg_it = msg_it; |
afe86a06 | 344 | stack->entries = g_array_new(FALSE, TRUE, sizeof(struct stack_entry)); |
e98a2d6e | 345 | if (!stack->entries) { |
2246e99d FD |
346 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
347 | "Failed to allocate a GArray."); | |
e98a2d6e PP |
348 | goto error; |
349 | } | |
350 | ||
3adcb386 | 351 | BT_COMP_LOGD("Created stack: msg-it-addr=%p, stack-addr=%p", msg_it, stack); |
44c440bc | 352 | goto end; |
fdf0e7a0 | 353 | |
e98a2d6e PP |
354 | error: |
355 | g_free(stack); | |
44c440bc PP |
356 | stack = NULL; |
357 | ||
358 | end: | |
359 | return stack; | |
e98a2d6e PP |
360 | } |
361 | ||
362 | static | |
363 | void stack_destroy(struct stack *stack) | |
364 | { | |
18a1979b | 365 | struct ctf_msg_iter *msg_it; |
ea14c7dd | 366 | |
98b15851 | 367 | BT_ASSERT_DBG(stack); |
3adcb386 | 368 | msg_it = stack->msg_it; |
eb7f6c4f | 369 | BT_COMP_LOGD("Destroying stack: addr=%p", stack); |
afe86a06 PP |
370 | |
371 | if (stack->entries) { | |
372 | g_array_free(stack->entries, TRUE); | |
373 | } | |
374 | ||
e98a2d6e PP |
375 | g_free(stack); |
376 | } | |
377 | ||
378 | static | |
b19ff26f | 379 | void stack_push(struct stack *stack, bt_field *base) |
e98a2d6e | 380 | { |
e98a2d6e | 381 | struct stack_entry *entry; |
18a1979b | 382 | struct ctf_msg_iter *msg_it; |
e98a2d6e | 383 | |
98b15851 | 384 | BT_ASSERT_DBG(stack); |
3adcb386 | 385 | msg_it = stack->msg_it; |
98b15851 | 386 | BT_ASSERT_DBG(base); |
ef267d12 | 387 | BT_COMP_LOGT("Pushing base field on stack: stack-addr=%p, " |
afe86a06 PP |
388 | "stack-size-before=%zu, stack-size-after=%zu", |
389 | stack, stack->size, stack->size + 1); | |
390 | ||
391 | if (stack->entries->len == stack->size) { | |
392 | g_array_set_size(stack->entries, stack->size + 1); | |
e98a2d6e PP |
393 | } |
394 | ||
afe86a06 | 395 | entry = &g_array_index(stack->entries, struct stack_entry, stack->size); |
312c056a | 396 | entry->base = base; |
afe86a06 PP |
397 | entry->index = 0; |
398 | stack->size++; | |
e98a2d6e PP |
399 | } |
400 | ||
401 | static inline | |
402 | unsigned int stack_size(struct stack *stack) | |
403 | { | |
98b15851 | 404 | BT_ASSERT_DBG(stack); |
afe86a06 | 405 | return stack->size; |
e98a2d6e PP |
406 | } |
407 | ||
408 | static | |
409 | void stack_pop(struct stack *stack) | |
410 | { | |
18a1979b | 411 | struct ctf_msg_iter *msg_it; |
ea14c7dd | 412 | |
98b15851 PP |
413 | BT_ASSERT_DBG(stack); |
414 | BT_ASSERT_DBG(stack_size(stack)); | |
3adcb386 | 415 | msg_it = stack->msg_it; |
ef267d12 | 416 | BT_COMP_LOGT("Popping from stack: " |
afe86a06 PP |
417 | "stack-addr=%p, stack-size-before=%zu, stack-size-after=%zu", |
418 | stack, stack->size, stack->size - 1); | |
419 | stack->size--; | |
e98a2d6e PP |
420 | } |
421 | ||
422 | static inline | |
423 | struct stack_entry *stack_top(struct stack *stack) | |
424 | { | |
98b15851 PP |
425 | BT_ASSERT_DBG(stack); |
426 | BT_ASSERT_DBG(stack_size(stack)); | |
afe86a06 PP |
427 | return &g_array_index(stack->entries, struct stack_entry, |
428 | stack->size - 1); | |
e98a2d6e PP |
429 | } |
430 | ||
431 | static inline | |
432 | bool stack_empty(struct stack *stack) | |
433 | { | |
434 | return stack_size(stack) == 0; | |
435 | } | |
436 | ||
437 | static | |
438 | void stack_clear(struct stack *stack) | |
439 | { | |
98b15851 | 440 | BT_ASSERT_DBG(stack); |
afe86a06 | 441 | stack->size = 0; |
e98a2d6e PP |
442 | } |
443 | ||
444 | static inline | |
18a1979b SM |
445 | enum ctf_msg_iter_status msg_iter_status_from_m_status( |
446 | enum ctf_msg_iter_medium_status m_status) | |
e98a2d6e | 447 | { |
44c440bc | 448 | /* They are the same */ |
dc77b521 | 449 | return (int) m_status; |
e98a2d6e PP |
450 | } |
451 | ||
452 | static inline | |
18a1979b | 453 | size_t buf_size_bits(struct ctf_msg_iter *msg_it) |
e98a2d6e | 454 | { |
3adcb386 | 455 | return msg_it->buf.sz * 8; |
e98a2d6e PP |
456 | } |
457 | ||
458 | static inline | |
18a1979b | 459 | size_t buf_available_bits(struct ctf_msg_iter *msg_it) |
e98a2d6e | 460 | { |
3adcb386 | 461 | return buf_size_bits(msg_it) - msg_it->buf.at; |
e98a2d6e PP |
462 | } |
463 | ||
464 | static inline | |
18a1979b | 465 | size_t packet_at(struct ctf_msg_iter *msg_it) |
e98a2d6e | 466 | { |
3adcb386 | 467 | return msg_it->buf.packet_offset + msg_it->buf.at; |
e98a2d6e PP |
468 | } |
469 | ||
e98a2d6e | 470 | static inline |
18a1979b | 471 | void buf_consume_bits(struct ctf_msg_iter *msg_it, size_t incr) |
e98a2d6e | 472 | { |
3adcb386 FD |
473 | BT_COMP_LOGT("Advancing cursor: msg-it-addr=%p, cur-before=%zu, cur-after=%zu", |
474 | msg_it, msg_it->buf.at, msg_it->buf.at + incr); | |
475 | msg_it->buf.at += incr; | |
e98a2d6e PP |
476 | } |
477 | ||
e98a2d6e | 478 | static |
18a1979b SM |
479 | enum ctf_msg_iter_status request_medium_bytes( |
480 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 481 | { |
3adcb386 | 482 | bt_self_component *self_comp = msg_it->self_comp; |
fdf0e7a0 PP |
483 | uint8_t *buffer_addr = NULL; |
484 | size_t buffer_sz = 0; | |
18a1979b | 485 | enum ctf_msg_iter_medium_status m_status; |
e98a2d6e | 486 | |
3adcb386 FD |
487 | BT_COMP_LOGD("Calling user function (request bytes): msg-it-addr=%p, " |
488 | "request-size=%zu", msg_it, msg_it->medium.max_request_sz); | |
489 | m_status = msg_it->medium.medops.request_bytes( | |
490 | msg_it->medium.max_request_sz, &buffer_addr, | |
491 | &buffer_sz, msg_it->medium.data); | |
eb7f6c4f | 492 | BT_COMP_LOGD("User function returned: status=%s, buf-addr=%p, buf-size=%zu", |
18a1979b | 493 | ctf_msg_iter_medium_status_string(m_status), |
fdf0e7a0 | 494 | buffer_addr, buffer_sz); |
18a1979b | 495 | if (m_status == CTF_MSG_ITER_MEDIUM_STATUS_OK) { |
f6ccaed9 | 496 | BT_ASSERT(buffer_sz != 0); |
e98a2d6e PP |
497 | |
498 | /* New packet offset is old one + old size (in bits) */ | |
3adcb386 | 499 | msg_it->buf.packet_offset += buf_size_bits(msg_it); |
e98a2d6e PP |
500 | |
501 | /* Restart at the beginning of the new medium buffer */ | |
3adcb386 FD |
502 | msg_it->buf.at = 0; |
503 | msg_it->buf.last_eh_at = SIZE_MAX; | |
e98a2d6e PP |
504 | |
505 | /* New medium buffer size */ | |
3adcb386 | 506 | msg_it->buf.sz = buffer_sz; |
e98a2d6e PP |
507 | |
508 | /* New medium buffer address */ | |
3adcb386 | 509 | msg_it->buf.addr = buffer_addr; |
fdf0e7a0 | 510 | |
eb7f6c4f | 511 | BT_COMP_LOGD("User function returned new bytes: " |
fdf0e7a0 | 512 | "packet-offset=%zu, cur=%zu, size=%zu, addr=%p", |
3adcb386 FD |
513 | msg_it->buf.packet_offset, msg_it->buf.at, |
514 | msg_it->buf.sz, msg_it->buf.addr); | |
eb7f6c4f | 515 | BT_COMP_LOGD_MEM(buffer_addr, buffer_sz, "Returned bytes at %p:", |
fdf0e7a0 | 516 | buffer_addr); |
18a1979b | 517 | } else if (m_status == CTF_MSG_ITER_MEDIUM_STATUS_EOF) { |
0684124b PP |
518 | /* |
519 | * User returned end of stream: validate that we're not | |
520 | * in the middle of a packet header, packet context, or | |
521 | * event. | |
522 | */ | |
3adcb386 FD |
523 | if (msg_it->cur_exp_packet_total_size >= 0) { |
524 | if (packet_at(msg_it) == | |
525 | msg_it->cur_exp_packet_total_size) { | |
df0139b8 | 526 | goto end; |
0684124b | 527 | } |
df0139b8 | 528 | } else { |
3adcb386 | 529 | if (packet_at(msg_it) == 0) { |
df0139b8 | 530 | goto end; |
0684124b | 531 | } |
0684124b | 532 | |
3adcb386 FD |
533 | if (msg_it->buf.last_eh_at != SIZE_MAX && |
534 | msg_it->buf.at == msg_it->buf.last_eh_at) { | |
df0139b8 | 535 | goto end; |
0684124b PP |
536 | } |
537 | } | |
538 | ||
0684124b | 539 | /* All other states are invalid */ |
2246e99d FD |
540 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
541 | "User function returned %s, but message iterator is in an unexpected state: " | |
df0139b8 PP |
542 | "state=%s, cur-packet-size=%" PRId64 ", cur=%zu, " |
543 | "packet-cur=%zu, last-eh-at=%zu", | |
18a1979b | 544 | ctf_msg_iter_medium_status_string(m_status), |
3adcb386 FD |
545 | state_string(msg_it->state), |
546 | msg_it->cur_exp_packet_total_size, | |
547 | msg_it->buf.at, packet_at(msg_it), | |
548 | msg_it->buf.last_eh_at); | |
18a1979b | 549 | m_status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; |
fdf0e7a0 | 550 | } else if (m_status < 0) { |
2246e99d | 551 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "User function failed: " |
18a1979b | 552 | "status=%s", ctf_msg_iter_medium_status_string(m_status)); |
e98a2d6e PP |
553 | } |
554 | ||
df0139b8 | 555 | end: |
d6e69534 | 556 | return msg_iter_status_from_m_status(m_status); |
e98a2d6e PP |
557 | } |
558 | ||
559 | static inline | |
18a1979b SM |
560 | enum ctf_msg_iter_status buf_ensure_available_bits( |
561 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 562 | { |
18a1979b | 563 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
e98a2d6e | 564 | |
3adcb386 | 565 | if (G_UNLIKELY(buf_available_bits(msg_it) == 0)) { |
e98a2d6e | 566 | /* |
18a1979b | 567 | * This _cannot_ return CTF_MSG_ITER_STATUS_OK |
e98a2d6e PP |
568 | * _and_ no bits. |
569 | */ | |
3adcb386 | 570 | status = request_medium_bytes(msg_it); |
e98a2d6e PP |
571 | } |
572 | ||
573 | return status; | |
574 | } | |
575 | ||
576 | static | |
18a1979b SM |
577 | enum ctf_msg_iter_status read_dscope_begin_state( |
578 | struct ctf_msg_iter *msg_it, | |
5cd6d0e5 | 579 | struct ctf_field_class *dscope_fc, |
e98a2d6e | 580 | enum state done_state, enum state continue_state, |
b19ff26f | 581 | bt_field *dscope_field) |
e98a2d6e | 582 | { |
18a1979b | 583 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 584 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 585 | enum bt_bfcr_status bfcr_status; |
e98a2d6e PP |
586 | size_t consumed_bits; |
587 | ||
3adcb386 FD |
588 | msg_it->cur_dscope_field = dscope_field; |
589 | BT_COMP_LOGT("Starting BFCR: msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p", | |
590 | msg_it, msg_it->bfcr, dscope_fc); | |
591 | consumed_bits = bt_bfcr_start(msg_it->bfcr, dscope_fc, | |
592 | msg_it->buf.addr, msg_it->buf.at, packet_at(msg_it), | |
593 | msg_it->buf.sz, &bfcr_status); | |
ef267d12 | 594 | BT_COMP_LOGT("BFCR consumed bits: size=%zu", consumed_bits); |
e98a2d6e | 595 | |
5cd6d0e5 PP |
596 | switch (bfcr_status) { |
597 | case BT_BFCR_STATUS_OK: | |
598 | /* Field class was read completely */ | |
ef267d12 | 599 | BT_COMP_LOGT_STR("Field was completely decoded."); |
3adcb386 | 600 | msg_it->state = done_state; |
e98a2d6e | 601 | break; |
5cd6d0e5 | 602 | case BT_BFCR_STATUS_EOF: |
ef267d12 | 603 | BT_COMP_LOGT_STR("BFCR needs more data to decode field completely."); |
3adcb386 | 604 | msg_it->state = continue_state; |
e98a2d6e PP |
605 | break; |
606 | default: | |
2246e99d | 607 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
3adcb386 FD |
608 | "BFCR failed to start: msg-it-addr=%p, bfcr-addr=%p, " |
609 | "status=%s", msg_it, msg_it->bfcr, | |
5cd6d0e5 | 610 | bt_bfcr_status_string(bfcr_status)); |
18a1979b | 611 | status = CTF_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
612 | goto end; |
613 | } | |
614 | ||
615 | /* Consume bits now since we know we're not in an error state */ | |
3adcb386 | 616 | buf_consume_bits(msg_it, consumed_bits); |
e98a2d6e PP |
617 | |
618 | end: | |
619 | return status; | |
620 | } | |
621 | ||
622 | static | |
18a1979b SM |
623 | enum ctf_msg_iter_status read_dscope_continue_state( |
624 | struct ctf_msg_iter *msg_it, enum state done_state) | |
e98a2d6e | 625 | { |
18a1979b | 626 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 627 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 628 | enum bt_bfcr_status bfcr_status; |
e98a2d6e PP |
629 | size_t consumed_bits; |
630 | ||
3adcb386 FD |
631 | BT_COMP_LOGT("Continuing BFCR: msg-it-addr=%p, bfcr-addr=%p", |
632 | msg_it, msg_it->bfcr); | |
df0139b8 | 633 | |
3adcb386 | 634 | status = buf_ensure_available_bits(msg_it); |
18a1979b | 635 | if (status != CTF_MSG_ITER_STATUS_OK) { |
fdf0e7a0 | 636 | if (status < 0) { |
2246e99d FD |
637 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
638 | "Cannot ensure that buffer has at least one byte: " | |
d6e69534 | 639 | "msg-addr=%p, status=%s", |
18a1979b | 640 | msg_it, ctf_msg_iter_status_string(status)); |
fdf0e7a0 | 641 | } else { |
ef267d12 | 642 | BT_COMP_LOGT("Cannot ensure that buffer has at least one byte: " |
d6e69534 | 643 | "msg-addr=%p, status=%s", |
18a1979b | 644 | msg_it, ctf_msg_iter_status_string(status)); |
fdf0e7a0 PP |
645 | } |
646 | ||
e98a2d6e PP |
647 | goto end; |
648 | } | |
649 | ||
3adcb386 FD |
650 | consumed_bits = bt_bfcr_continue(msg_it->bfcr, msg_it->buf.addr, |
651 | msg_it->buf.sz, &bfcr_status); | |
ef267d12 | 652 | BT_COMP_LOGT("BFCR consumed bits: size=%zu", consumed_bits); |
e98a2d6e | 653 | |
5cd6d0e5 PP |
654 | switch (bfcr_status) { |
655 | case BT_BFCR_STATUS_OK: | |
78586d8a | 656 | /* Type was read completely. */ |
ef267d12 | 657 | BT_COMP_LOGT_STR("Field was completely decoded."); |
3adcb386 | 658 | msg_it->state = done_state; |
e98a2d6e | 659 | break; |
5cd6d0e5 | 660 | case BT_BFCR_STATUS_EOF: |
78586d8a | 661 | /* Stay in this continue state. */ |
ef267d12 | 662 | BT_COMP_LOGT_STR("BFCR needs more data to decode field completely."); |
e98a2d6e PP |
663 | break; |
664 | default: | |
2246e99d | 665 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
3adcb386 FD |
666 | "BFCR failed to continue: msg-it-addr=%p, bfcr-addr=%p, " |
667 | "status=%s", msg_it, msg_it->bfcr, | |
5cd6d0e5 | 668 | bt_bfcr_status_string(bfcr_status)); |
18a1979b | 669 | status = CTF_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
670 | goto end; |
671 | } | |
672 | ||
78586d8a | 673 | /* Consume bits now since we know we're not in an error state. */ |
3adcb386 | 674 | buf_consume_bits(msg_it, consumed_bits); |
e98a2d6e PP |
675 | end: |
676 | return status; | |
677 | } | |
678 | ||
679 | static | |
18a1979b | 680 | void release_event_dscopes(struct ctf_msg_iter *msg_it) |
e98a2d6e | 681 | { |
3adcb386 FD |
682 | msg_it->dscopes.event_common_context = NULL; |
683 | msg_it->dscopes.event_spec_context = NULL; | |
684 | msg_it->dscopes.event_payload = NULL; | |
e98a2d6e PP |
685 | } |
686 | ||
687 | static | |
18a1979b | 688 | void release_all_dscopes(struct ctf_msg_iter *msg_it) |
e98a2d6e | 689 | { |
3adcb386 | 690 | msg_it->dscopes.stream_packet_context = NULL; |
312c056a | 691 | |
3adcb386 | 692 | release_event_dscopes(msg_it); |
e98a2d6e PP |
693 | } |
694 | ||
44269abb | 695 | static |
18a1979b | 696 | enum ctf_msg_iter_status switch_packet_state(struct ctf_msg_iter *msg_it) |
44269abb | 697 | { |
f6e68e70 | 698 | enum ctf_msg_iter_status status; |
3adcb386 | 699 | bt_self_component *self_comp = msg_it->self_comp; |
44269abb PP |
700 | |
701 | /* | |
702 | * We don't put the stream class here because we need to make | |
703 | * sure that all the packets processed by the same message | |
704 | * iterator refer to the same stream class (the first one). | |
705 | */ | |
3adcb386 | 706 | BT_ASSERT(msg_it); |
44269abb | 707 | |
3adcb386 FD |
708 | if (msg_it->cur_exp_packet_total_size != -1) { |
709 | msg_it->cur_packet_offset += msg_it->cur_exp_packet_total_size; | |
44269abb PP |
710 | } |
711 | ||
3adcb386 FD |
712 | BT_COMP_LOGD("Switching packet: msg-it-addr=%p, cur=%zu, " |
713 | "packet-offset=%" PRId64, msg_it, msg_it->buf.at, | |
714 | msg_it->cur_packet_offset); | |
715 | stack_clear(msg_it->stack); | |
716 | msg_it->meta.ec = NULL; | |
717 | BT_PACKET_PUT_REF_AND_RESET(msg_it->packet); | |
718 | BT_MESSAGE_PUT_REF_AND_RESET(msg_it->event_msg); | |
719 | release_all_dscopes(msg_it); | |
720 | msg_it->cur_dscope_field = NULL; | |
44269abb | 721 | |
f6e68e70 SM |
722 | if (msg_it->medium.medops.switch_packet) { |
723 | enum ctf_msg_iter_medium_status medium_status; | |
724 | ||
725 | medium_status = msg_it->medium.medops.switch_packet(msg_it->medium.data); | |
726 | if (medium_status == CTF_MSG_ITER_MEDIUM_STATUS_EOF) { | |
727 | /* No more packets. */ | |
ed4ddc26 | 728 | msg_it->state = STATE_EMIT_MSG_STREAM_END; |
f6e68e70 SM |
729 | status = CTF_MSG_ITER_STATUS_OK; |
730 | goto end; | |
731 | } else if (medium_status != CTF_MSG_ITER_MEDIUM_STATUS_OK) { | |
732 | status = (int) medium_status; | |
733 | goto end; | |
734 | } | |
735 | ||
736 | /* | |
737 | * After the packet switch, the medium might want to give us a | |
738 | * different buffer for the new packet. | |
739 | */ | |
740 | status = request_medium_bytes(msg_it); | |
741 | if (status != CTF_MSG_ITER_STATUS_OK) { | |
742 | goto end; | |
743 | } | |
744 | } | |
745 | ||
44269abb PP |
746 | /* |
747 | * Adjust current buffer so that addr points to the beginning of the new | |
748 | * packet. | |
749 | */ | |
3adcb386 FD |
750 | if (msg_it->buf.addr) { |
751 | size_t consumed_bytes = (size_t) (msg_it->buf.at / CHAR_BIT); | |
44269abb PP |
752 | |
753 | /* Packets are assumed to start on a byte frontier. */ | |
3adcb386 | 754 | if (msg_it->buf.at % CHAR_BIT) { |
2246e99d FD |
755 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
756 | "Cannot switch packet: current position is not a multiple of 8: " | |
3adcb386 | 757 | "msg-it-addr=%p, cur=%zu", msg_it, msg_it->buf.at); |
18a1979b | 758 | status = CTF_MSG_ITER_STATUS_ERROR; |
44269abb PP |
759 | goto end; |
760 | } | |
761 | ||
3adcb386 FD |
762 | msg_it->buf.addr += consumed_bytes; |
763 | msg_it->buf.sz -= consumed_bytes; | |
764 | msg_it->buf.at = 0; | |
765 | msg_it->buf.packet_offset = 0; | |
44269abb | 766 | BT_COMP_LOGD("Adjusted buffer: addr=%p, size=%zu", |
3adcb386 | 767 | msg_it->buf.addr, msg_it->buf.sz); |
44269abb PP |
768 | } |
769 | ||
3adcb386 FD |
770 | msg_it->cur_exp_packet_content_size = -1; |
771 | msg_it->cur_exp_packet_total_size = -1; | |
772 | msg_it->cur_stream_class_id = -1; | |
773 | msg_it->cur_event_class_id = -1; | |
774 | msg_it->cur_data_stream_id = -1; | |
775 | msg_it->prev_packet_snapshots = msg_it->snapshots; | |
776 | msg_it->snapshots.discarded_events = UINT64_C(-1); | |
777 | msg_it->snapshots.packets = UINT64_C(-1); | |
778 | msg_it->snapshots.beginning_clock = UINT64_C(-1); | |
779 | msg_it->snapshots.end_clock = UINT64_C(-1); | |
780 | msg_it->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
44269abb | 781 | |
f6e68e70 | 782 | status = CTF_MSG_ITER_STATUS_OK; |
44269abb PP |
783 | end: |
784 | return status; | |
785 | } | |
786 | ||
e98a2d6e | 787 | static |
18a1979b SM |
788 | enum ctf_msg_iter_status read_packet_header_begin_state( |
789 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 790 | { |
5cd6d0e5 | 791 | struct ctf_field_class *packet_header_fc = NULL; |
3adcb386 | 792 | bt_self_component *self_comp = msg_it->self_comp; |
18a1979b | 793 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
e98a2d6e | 794 | |
fc917f65 PP |
795 | /* |
796 | * Make sure at least one bit is available for this packet. An | |
797 | * empty packet is impossible. If we reach the end of the medium | |
798 | * at this point, then it's considered the end of the stream. | |
799 | */ | |
3adcb386 | 800 | status = buf_ensure_available_bits(msg_it); |
3a246966 | 801 | switch (status) { |
18a1979b | 802 | case CTF_MSG_ITER_STATUS_OK: |
fc917f65 | 803 | break; |
18a1979b SM |
804 | case CTF_MSG_ITER_STATUS_EOF: |
805 | status = CTF_MSG_ITER_STATUS_OK; | |
ed4ddc26 | 806 | msg_it->state = STATE_EMIT_MSG_STREAM_END; |
fc917f65 PP |
807 | goto end; |
808 | default: | |
809 | goto end; | |
810 | } | |
811 | ||
862ca4ed | 812 | /* Packet header class is common to the whole trace class. */ |
3adcb386 | 813 | packet_header_fc = msg_it->meta.tc->packet_header_fc; |
5cd6d0e5 | 814 | if (!packet_header_fc) { |
3adcb386 | 815 | msg_it->state = STATE_AFTER_TRACE_PACKET_HEADER; |
e98a2d6e PP |
816 | goto end; |
817 | } | |
818 | ||
3adcb386 FD |
819 | msg_it->cur_stream_class_id = -1; |
820 | msg_it->cur_event_class_id = -1; | |
821 | msg_it->cur_data_stream_id = -1; | |
eb7f6c4f | 822 | BT_COMP_LOGD("Decoding packet header field:" |
3adcb386 FD |
823 | "msg-it-addr=%p, trace-class-addr=%p, fc-addr=%p", |
824 | msg_it, msg_it->meta.tc, packet_header_fc); | |
825 | status = read_dscope_begin_state(msg_it, packet_header_fc, | |
fdf0e7a0 | 826 | STATE_AFTER_TRACE_PACKET_HEADER, |
83ebb7f1 | 827 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, NULL); |
3a246966 | 828 | if (status < 0) { |
2246e99d FD |
829 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
830 | "Cannot decode packet header field: " | |
3adcb386 | 831 | "msg-it-addr=%p, trace-class-addr=%p, " |
862ca4ed | 832 | "fc-addr=%p", |
3adcb386 | 833 | msg_it, msg_it->meta.tc, packet_header_fc); |
fdf0e7a0 | 834 | } |
d1e46835 | 835 | |
e98a2d6e | 836 | end: |
3a246966 | 837 | return status; |
e98a2d6e PP |
838 | } |
839 | ||
840 | static | |
18a1979b SM |
841 | enum ctf_msg_iter_status read_packet_header_continue_state( |
842 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 843 | { |
3adcb386 | 844 | return read_dscope_continue_state(msg_it, |
44c440bc | 845 | STATE_AFTER_TRACE_PACKET_HEADER); |
5f870343 JG |
846 | } |
847 | ||
e98a2d6e | 848 | static inline |
18a1979b | 849 | enum ctf_msg_iter_status set_current_stream_class(struct ctf_msg_iter *msg_it) |
e98a2d6e | 850 | { |
18a1979b | 851 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 852 | bt_self_component *self_comp = msg_it->self_comp; |
44c440bc PP |
853 | struct ctf_stream_class *new_stream_class = NULL; |
854 | ||
3adcb386 | 855 | if (msg_it->cur_stream_class_id == -1) { |
fdf0e7a0 | 856 | /* |
44c440bc PP |
857 | * No current stream class ID field, therefore only one |
858 | * stream class. | |
fdf0e7a0 | 859 | */ |
3adcb386 | 860 | if (msg_it->meta.tc->stream_classes->len != 1) { |
2246e99d FD |
861 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
862 | "Need exactly one stream class since there's " | |
44c440bc | 863 | "no stream class ID field: " |
3adcb386 | 864 | "msg-it-addr=%p", msg_it); |
18a1979b | 865 | status = CTF_MSG_ITER_STATUS_ERROR; |
44c440bc PP |
866 | goto end; |
867 | } | |
e98a2d6e | 868 | |
3adcb386 FD |
869 | new_stream_class = msg_it->meta.tc->stream_classes->pdata[0]; |
870 | msg_it->cur_stream_class_id = new_stream_class->id; | |
e98a2d6e PP |
871 | } |
872 | ||
44c440bc | 873 | new_stream_class = ctf_trace_class_borrow_stream_class_by_id( |
3adcb386 | 874 | msg_it->meta.tc, msg_it->cur_stream_class_id); |
115de887 | 875 | if (!new_stream_class) { |
2246e99d FD |
876 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
877 | "No stream class with ID of stream class ID to use in trace class: " | |
3adcb386 | 878 | "msg-it-addr=%p, stream-class-id=%" PRIu64 ", " |
862ca4ed | 879 | "trace-class-addr=%p", |
3adcb386 | 880 | msg_it, msg_it->cur_stream_class_id, msg_it->meta.tc); |
18a1979b | 881 | status = CTF_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
882 | goto end; |
883 | } | |
884 | ||
3adcb386 FD |
885 | if (msg_it->meta.sc) { |
886 | if (new_stream_class != msg_it->meta.sc) { | |
2246e99d FD |
887 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
888 | "Two packets refer to two different stream classes within the same packet sequence: " | |
3adcb386 | 889 | "msg-it-addr=%p, prev-stream-class-addr=%p, " |
115de887 PP |
890 | "prev-stream-class-id=%" PRId64 ", " |
891 | "next-stream-class-addr=%p, " | |
115de887 | 892 | "next-stream-class-id=%" PRId64 ", " |
862ca4ed | 893 | "trace-addr=%p", |
3adcb386 FD |
894 | msg_it, msg_it->meta.sc, |
895 | msg_it->meta.sc->id, | |
115de887 | 896 | new_stream_class, |
44c440bc | 897 | new_stream_class->id, |
3adcb386 | 898 | msg_it->meta.tc); |
18a1979b | 899 | status = CTF_MSG_ITER_STATUS_ERROR; |
115de887 PP |
900 | goto end; |
901 | } | |
902 | } else { | |
3adcb386 | 903 | msg_it->meta.sc = new_stream_class; |
115de887 PP |
904 | } |
905 | ||
eb7f6c4f | 906 | BT_COMP_LOGD("Set current stream class: " |
3adcb386 | 907 | "msg-it-addr=%p, stream-class-addr=%p, " |
44c440bc | 908 | "stream-class-id=%" PRId64, |
3adcb386 | 909 | msg_it, msg_it->meta.sc, msg_it->meta.sc->id); |
d1e46835 | 910 | |
e98a2d6e | 911 | end: |
e98a2d6e PP |
912 | return status; |
913 | } | |
914 | ||
312c056a | 915 | static inline |
18a1979b | 916 | enum ctf_msg_iter_status set_current_stream(struct ctf_msg_iter *msg_it) |
312c056a | 917 | { |
18a1979b | 918 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 919 | bt_self_component *self_comp = msg_it->self_comp; |
b19ff26f | 920 | bt_stream *stream = NULL; |
312c056a | 921 | |
3adcb386 | 922 | BT_COMP_LOGD("Calling user function (get stream): msg-it-addr=%p, " |
44c440bc | 923 | "stream-class-addr=%p, stream-class-id=%" PRId64, |
3adcb386 FD |
924 | msg_it, msg_it->meta.sc, |
925 | msg_it->meta.sc->id); | |
926 | stream = msg_it->medium.medops.borrow_stream( | |
927 | msg_it->meta.sc->ir_sc, msg_it->cur_data_stream_id, | |
928 | msg_it->medium.data); | |
c5b9b441 | 929 | bt_stream_get_ref(stream); |
eb7f6c4f | 930 | BT_COMP_LOGD("User function returned: stream-addr=%p", stream); |
312c056a | 931 | if (!stream) { |
2246e99d FD |
932 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
933 | "User function failed to return a stream object for the given stream class."); | |
18a1979b | 934 | status = CTF_MSG_ITER_STATUS_ERROR; |
312c056a PP |
935 | goto end; |
936 | } | |
937 | ||
3adcb386 | 938 | if (msg_it->stream && stream != msg_it->stream) { |
2246e99d FD |
939 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
940 | "User function returned a different stream than the previous one for the same sequence of packets."); | |
18a1979b | 941 | status = CTF_MSG_ITER_STATUS_ERROR; |
312c056a PP |
942 | goto end; |
943 | } | |
944 | ||
3adcb386 | 945 | BT_STREAM_MOVE_REF(msg_it->stream, stream); |
312c056a PP |
946 | |
947 | end: | |
c5b9b441 | 948 | bt_stream_put_ref(stream); |
312c056a PP |
949 | return status; |
950 | } | |
951 | ||
952 | static inline | |
18a1979b | 953 | enum ctf_msg_iter_status set_current_packet(struct ctf_msg_iter *msg_it) |
312c056a | 954 | { |
18a1979b | 955 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 956 | bt_self_component *self_comp = msg_it->self_comp; |
b19ff26f | 957 | bt_packet *packet = NULL; |
312c056a | 958 | |
eb7f6c4f | 959 | BT_COMP_LOGD("Creating packet from stream: " |
3adcb386 | 960 | "msg-it-addr=%p, stream-addr=%p, " |
312c056a | 961 | "stream-class-addr=%p, " |
312c056a | 962 | "stream-class-id=%" PRId64, |
3adcb386 FD |
963 | msg_it, msg_it->stream, msg_it->meta.sc, |
964 | msg_it->meta.sc->id); | |
312c056a PP |
965 | |
966 | /* Create packet */ | |
3adcb386 FD |
967 | BT_ASSERT(msg_it->stream); |
968 | packet = bt_packet_create(msg_it->stream); | |
312c056a | 969 | if (!packet) { |
2246e99d FD |
970 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
971 | "Cannot create packet from stream: " | |
3adcb386 | 972 | "msg-it-addr=%p, stream-addr=%p, " |
312c056a | 973 | "stream-class-addr=%p, " |
312c056a | 974 | "stream-class-id=%" PRId64, |
3adcb386 FD |
975 | msg_it, msg_it->stream, msg_it->meta.sc, |
976 | msg_it->meta.sc->id); | |
312c056a PP |
977 | goto error; |
978 | } | |
979 | ||
980 | goto end; | |
981 | ||
982 | error: | |
c5b9b441 | 983 | BT_PACKET_PUT_REF_AND_RESET(packet); |
18a1979b | 984 | status = CTF_MSG_ITER_STATUS_ERROR; |
312c056a PP |
985 | |
986 | end: | |
3adcb386 | 987 | BT_PACKET_MOVE_REF(msg_it->packet, packet); |
312c056a PP |
988 | return status; |
989 | } | |
990 | ||
e98a2d6e | 991 | static |
18a1979b SM |
992 | enum ctf_msg_iter_status after_packet_header_state( |
993 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 994 | { |
18a1979b | 995 | enum ctf_msg_iter_status status; |
e98a2d6e | 996 | |
3adcb386 | 997 | status = set_current_stream_class(msg_it); |
18a1979b | 998 | if (status != CTF_MSG_ITER_STATUS_OK) { |
312c056a | 999 | goto end; |
e98a2d6e PP |
1000 | } |
1001 | ||
bc0ae364 SM |
1002 | if (!msg_it->dry_run) { |
1003 | status = set_current_stream(msg_it); | |
1004 | if (status != CTF_MSG_ITER_STATUS_OK) { | |
1005 | goto end; | |
1006 | } | |
1007 | ||
1008 | status = set_current_packet(msg_it); | |
1009 | if (status != CTF_MSG_ITER_STATUS_OK) { | |
1010 | goto end; | |
1011 | } | |
1012 | } | |
1013 | ||
3adcb386 | 1014 | msg_it->state = STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN; |
312c056a | 1015 | |
bc0ae364 SM |
1016 | status = CTF_MSG_ITER_STATUS_OK; |
1017 | ||
312c056a | 1018 | end: |
e98a2d6e PP |
1019 | return status; |
1020 | } | |
1021 | ||
1022 | static | |
18a1979b SM |
1023 | enum ctf_msg_iter_status read_packet_context_begin_state( |
1024 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1025 | { |
18a1979b | 1026 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1027 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 1028 | struct ctf_field_class *packet_context_fc; |
e98a2d6e | 1029 | |
3adcb386 FD |
1030 | BT_ASSERT(msg_it->meta.sc); |
1031 | packet_context_fc = msg_it->meta.sc->packet_context_fc; | |
5cd6d0e5 | 1032 | if (!packet_context_fc) { |
eb7f6c4f | 1033 | BT_COMP_LOGD("No packet packet context field class in stream class: continuing: " |
3adcb386 | 1034 | "msg-it-addr=%p, stream-class-addr=%p, " |
44c440bc | 1035 | "stream-class-id=%" PRId64, |
3adcb386 FD |
1036 | msg_it, msg_it->meta.sc, |
1037 | msg_it->meta.sc->id); | |
1038 | msg_it->state = STATE_AFTER_STREAM_PACKET_CONTEXT; | |
e98a2d6e PP |
1039 | goto end; |
1040 | } | |
1041 | ||
3adcb386 | 1042 | if (packet_context_fc->in_ir && !msg_it->dry_run) { |
bc0ae364 SM |
1043 | BT_ASSERT(!msg_it->dscopes.stream_packet_context); |
1044 | BT_ASSERT(msg_it->packet); | |
3adcb386 | 1045 | msg_it->dscopes.stream_packet_context = |
bc0ae364 | 1046 | bt_packet_borrow_context_field(msg_it->packet); |
3adcb386 | 1047 | BT_ASSERT(msg_it->dscopes.stream_packet_context); |
312c056a PP |
1048 | } |
1049 | ||
eb7f6c4f | 1050 | BT_COMP_LOGD("Decoding packet context field: " |
3adcb386 | 1051 | "msg-it-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 1052 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
3adcb386 FD |
1053 | msg_it, msg_it->meta.sc, |
1054 | msg_it->meta.sc->id, packet_context_fc); | |
1055 | status = read_dscope_begin_state(msg_it, packet_context_fc, | |
fdf0e7a0 PP |
1056 | STATE_AFTER_STREAM_PACKET_CONTEXT, |
1057 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
3adcb386 | 1058 | msg_it->dscopes.stream_packet_context); |
fdf0e7a0 | 1059 | if (status < 0) { |
2246e99d FD |
1060 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1061 | "Cannot decode packet context field: " | |
3adcb386 | 1062 | "msg-it-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 1063 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
3adcb386 FD |
1064 | msg_it, msg_it->meta.sc, |
1065 | msg_it->meta.sc->id, | |
5cd6d0e5 | 1066 | packet_context_fc); |
fdf0e7a0 | 1067 | } |
e98a2d6e PP |
1068 | |
1069 | end: | |
e98a2d6e PP |
1070 | return status; |
1071 | } | |
1072 | ||
1073 | static | |
18a1979b SM |
1074 | enum ctf_msg_iter_status read_packet_context_continue_state( |
1075 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1076 | { |
3adcb386 | 1077 | return read_dscope_continue_state(msg_it, |
78586d8a | 1078 | STATE_AFTER_STREAM_PACKET_CONTEXT); |
e98a2d6e PP |
1079 | } |
1080 | ||
78586d8a | 1081 | static |
18a1979b SM |
1082 | enum ctf_msg_iter_status set_current_packet_content_sizes( |
1083 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1084 | { |
18a1979b | 1085 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1086 | bt_self_component *self_comp = msg_it->self_comp; |
e98a2d6e | 1087 | |
3adcb386 FD |
1088 | if (msg_it->cur_exp_packet_total_size == -1) { |
1089 | if (msg_it->cur_exp_packet_content_size != -1) { | |
1090 | msg_it->cur_exp_packet_total_size = | |
1091 | msg_it->cur_exp_packet_content_size; | |
e98a2d6e | 1092 | } |
e98a2d6e | 1093 | } else { |
3adcb386 FD |
1094 | if (msg_it->cur_exp_packet_content_size == -1) { |
1095 | msg_it->cur_exp_packet_content_size = | |
1096 | msg_it->cur_exp_packet_total_size; | |
44c440bc | 1097 | } |
e98a2d6e PP |
1098 | } |
1099 | ||
3adcb386 FD |
1100 | BT_ASSERT((msg_it->cur_exp_packet_total_size >= 0 && |
1101 | msg_it->cur_exp_packet_content_size >= 0) || | |
1102 | (msg_it->cur_exp_packet_total_size < 0 && | |
1103 | msg_it->cur_exp_packet_content_size < 0)); | |
01f71e30 | 1104 | |
3adcb386 FD |
1105 | if (msg_it->cur_exp_packet_content_size > |
1106 | msg_it->cur_exp_packet_total_size) { | |
2246e99d FD |
1107 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1108 | "Invalid packet or content size: " | |
44c440bc | 1109 | "content size is greater than packet size: " |
3adcb386 | 1110 | "msg-it-addr=%p, packet-context-field-addr=%p, " |
44c440bc | 1111 | "packet-size=%" PRId64 ", content-size=%" PRId64, |
3adcb386 FD |
1112 | msg_it, msg_it->dscopes.stream_packet_context, |
1113 | msg_it->cur_exp_packet_total_size, | |
1114 | msg_it->cur_exp_packet_content_size); | |
18a1979b | 1115 | status = CTF_MSG_ITER_STATUS_ERROR; |
fdf0e7a0 PP |
1116 | goto end; |
1117 | } | |
1118 | ||
eb7f6c4f | 1119 | BT_COMP_LOGD("Set current packet and content sizes: " |
3adcb386 FD |
1120 | "msg-it-addr=%p, packet-size=%" PRIu64 ", content-size=%" PRIu64, |
1121 | msg_it, msg_it->cur_exp_packet_total_size, | |
1122 | msg_it->cur_exp_packet_content_size); | |
fc917f65 | 1123 | |
e98a2d6e | 1124 | end: |
e98a2d6e PP |
1125 | return status; |
1126 | } | |
1127 | ||
1128 | static | |
18a1979b | 1129 | enum ctf_msg_iter_status after_packet_context_state(struct ctf_msg_iter *msg_it) |
e98a2d6e | 1130 | { |
18a1979b | 1131 | enum ctf_msg_iter_status status; |
e98a2d6e | 1132 | |
3adcb386 | 1133 | status = set_current_packet_content_sizes(msg_it); |
18a1979b | 1134 | if (status != CTF_MSG_ITER_STATUS_OK) { |
e22b45d0 PP |
1135 | goto end; |
1136 | } | |
1137 | ||
bc0ae364 | 1138 | if (msg_it->emit_stream_beginning_message) { |
ed4ddc26 | 1139 | msg_it->state = STATE_EMIT_MSG_STREAM_BEGINNING; |
bc0ae364 SM |
1140 | } else { |
1141 | msg_it->state = STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS; | |
e98a2d6e PP |
1142 | } |
1143 | ||
e22b45d0 | 1144 | end: |
e98a2d6e PP |
1145 | return status; |
1146 | } | |
1147 | ||
1148 | static | |
18a1979b | 1149 | enum ctf_msg_iter_status read_event_header_begin_state(struct ctf_msg_iter *msg_it) |
e98a2d6e | 1150 | { |
18a1979b | 1151 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1152 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 1153 | struct ctf_field_class *event_header_fc = NULL; |
e98a2d6e | 1154 | |
174e773b | 1155 | /* Reset the position of the last event header */ |
3adcb386 FD |
1156 | msg_it->buf.last_eh_at = msg_it->buf.at; |
1157 | msg_it->cur_event_class_id = -1; | |
174e773b | 1158 | |
e98a2d6e | 1159 | /* Check if we have some content left */ |
3adcb386 FD |
1160 | if (msg_it->cur_exp_packet_content_size >= 0) { |
1161 | if (G_UNLIKELY(packet_at(msg_it) == | |
1162 | msg_it->cur_exp_packet_content_size)) { | |
e98a2d6e | 1163 | /* No more events! */ |
3adcb386 FD |
1164 | BT_COMP_LOGD("Reached end of packet: msg-it-addr=%p, " |
1165 | "cur=%zu", msg_it, packet_at(msg_it)); | |
1166 | msg_it->state = STATE_EMIT_MSG_PACKET_END_MULTI; | |
e98a2d6e | 1167 | goto end; |
3adcb386 FD |
1168 | } else if (G_UNLIKELY(packet_at(msg_it) > |
1169 | msg_it->cur_exp_packet_content_size)) { | |
e98a2d6e | 1170 | /* That's not supposed to happen */ |
eb7f6c4f | 1171 | BT_COMP_LOGD("Before decoding event header field: cursor is passed the packet's content: " |
3adcb386 FD |
1172 | "msg-it-addr=%p, content-size=%" PRId64 ", " |
1173 | "cur=%zu", msg_it, | |
1174 | msg_it->cur_exp_packet_content_size, | |
1175 | packet_at(msg_it)); | |
18a1979b | 1176 | status = CTF_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
1177 | goto end; |
1178 | } | |
44c440bc PP |
1179 | } else { |
1180 | /* | |
1181 | * "Infinite" content: we're done when the medium has | |
1182 | * nothing else for us. | |
1183 | */ | |
3adcb386 | 1184 | status = buf_ensure_available_bits(msg_it); |
fc917f65 | 1185 | switch (status) { |
18a1979b | 1186 | case CTF_MSG_ITER_STATUS_OK: |
fc917f65 | 1187 | break; |
18a1979b SM |
1188 | case CTF_MSG_ITER_STATUS_EOF: |
1189 | status = CTF_MSG_ITER_STATUS_OK; | |
3adcb386 | 1190 | msg_it->state = STATE_EMIT_MSG_PACKET_END_SINGLE; |
fc917f65 PP |
1191 | goto end; |
1192 | default: | |
44c440bc PP |
1193 | goto end; |
1194 | } | |
e98a2d6e PP |
1195 | } |
1196 | ||
3adcb386 FD |
1197 | release_event_dscopes(msg_it); |
1198 | BT_ASSERT(msg_it->meta.sc); | |
1199 | event_header_fc = msg_it->meta.sc->event_header_fc; | |
5cd6d0e5 | 1200 | if (!event_header_fc) { |
3adcb386 | 1201 | msg_it->state = STATE_AFTER_EVENT_HEADER; |
e98a2d6e PP |
1202 | goto end; |
1203 | } | |
1204 | ||
eb7f6c4f | 1205 | BT_COMP_LOGD("Decoding event header field: " |
3adcb386 | 1206 | "msg-it-addr=%p, stream-class-addr=%p, " |
44c440bc | 1207 | "stream-class-id=%" PRId64 ", " |
5cd6d0e5 | 1208 | "fc-addr=%p", |
3adcb386 FD |
1209 | msg_it, msg_it->meta.sc, |
1210 | msg_it->meta.sc->id, | |
5cd6d0e5 | 1211 | event_header_fc); |
3adcb386 | 1212 | status = read_dscope_begin_state(msg_it, event_header_fc, |
44c440bc | 1213 | STATE_AFTER_EVENT_HEADER, |
83ebb7f1 | 1214 | STATE_DSCOPE_EVENT_HEADER_CONTINUE, NULL); |
fdf0e7a0 | 1215 | if (status < 0) { |
2246e99d FD |
1216 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1217 | "Cannot decode event header field: " | |
3adcb386 | 1218 | "msg-it-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 1219 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
3adcb386 FD |
1220 | msg_it, msg_it->meta.sc, |
1221 | msg_it->meta.sc->id, | |
5cd6d0e5 | 1222 | event_header_fc); |
fdf0e7a0 | 1223 | } |
e98a2d6e | 1224 | |
d1e46835 | 1225 | end: |
e98a2d6e PP |
1226 | return status; |
1227 | } | |
1228 | ||
1229 | static | |
18a1979b SM |
1230 | enum ctf_msg_iter_status read_event_header_continue_state( |
1231 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1232 | { |
3adcb386 | 1233 | return read_dscope_continue_state(msg_it, |
44c440bc | 1234 | STATE_AFTER_EVENT_HEADER); |
e98a2d6e PP |
1235 | } |
1236 | ||
1237 | static inline | |
18a1979b | 1238 | enum ctf_msg_iter_status set_current_event_class(struct ctf_msg_iter *msg_it) |
e98a2d6e | 1239 | { |
18a1979b | 1240 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1241 | bt_self_component *self_comp = msg_it->self_comp; |
e98a2d6e | 1242 | |
44c440bc | 1243 | struct ctf_event_class *new_event_class = NULL; |
e98a2d6e | 1244 | |
3adcb386 | 1245 | if (msg_it->cur_event_class_id == -1) { |
e98a2d6e | 1246 | /* |
44c440bc PP |
1247 | * No current event class ID field, therefore only one |
1248 | * event class. | |
e98a2d6e | 1249 | */ |
3adcb386 | 1250 | if (msg_it->meta.sc->event_classes->len != 1) { |
2246e99d FD |
1251 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1252 | "Need exactly one event class since there's no event class ID field: " | |
3adcb386 | 1253 | "msg-it-addr=%p", msg_it); |
18a1979b | 1254 | status = CTF_MSG_ITER_STATUS_ERROR; |
44c440bc | 1255 | goto end; |
fdf0e7a0 | 1256 | } |
e98a2d6e | 1257 | |
3adcb386 FD |
1258 | new_event_class = msg_it->meta.sc->event_classes->pdata[0]; |
1259 | msg_it->cur_event_class_id = new_event_class->id; | |
e98a2d6e PP |
1260 | } |
1261 | ||
44c440bc | 1262 | new_event_class = ctf_stream_class_borrow_event_class_by_id( |
3adcb386 | 1263 | msg_it->meta.sc, msg_it->cur_event_class_id); |
44c440bc | 1264 | if (!new_event_class) { |
2246e99d FD |
1265 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1266 | "No event class with ID of event class ID to use in stream class: " | |
3adcb386 | 1267 | "msg-it-addr=%p, stream-class-id=%" PRIu64 ", " |
44c440bc | 1268 | "event-class-id=%" PRIu64 ", " |
862ca4ed | 1269 | "trace-class-addr=%p", |
3adcb386 FD |
1270 | msg_it, msg_it->meta.sc->id, msg_it->cur_event_class_id, |
1271 | msg_it->meta.tc); | |
18a1979b | 1272 | status = CTF_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
1273 | goto end; |
1274 | } | |
1275 | ||
3adcb386 | 1276 | msg_it->meta.ec = new_event_class; |
eb7f6c4f | 1277 | BT_COMP_LOGD("Set current event class: " |
3adcb386 | 1278 | "msg-it-addr=%p, event-class-addr=%p, " |
44c440bc PP |
1279 | "event-class-id=%" PRId64 ", " |
1280 | "event-class-name=\"%s\"", | |
3adcb386 FD |
1281 | msg_it, msg_it->meta.ec, msg_it->meta.ec->id, |
1282 | msg_it->meta.ec->name->str); | |
fdf0e7a0 | 1283 | |
e98a2d6e | 1284 | end: |
e98a2d6e PP |
1285 | return status; |
1286 | } | |
1287 | ||
312c056a | 1288 | static inline |
18a1979b SM |
1289 | enum ctf_msg_iter_status set_current_event_message( |
1290 | struct ctf_msg_iter *msg_it) | |
312c056a | 1291 | { |
18a1979b | 1292 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1293 | bt_self_component *self_comp = msg_it->self_comp; |
d6e69534 | 1294 | bt_message *msg = NULL; |
312c056a | 1295 | |
3adcb386 FD |
1296 | BT_ASSERT_DBG(msg_it->meta.ec); |
1297 | BT_ASSERT_DBG(msg_it->packet); | |
eb7f6c4f | 1298 | BT_COMP_LOGD("Creating event message from event class and packet: " |
3adcb386 FD |
1299 | "msg-it-addr=%p, ec-addr=%p, ec-name=\"%s\", packet-addr=%p", |
1300 | msg_it, msg_it->meta.ec, | |
1301 | msg_it->meta.ec->name->str, | |
1302 | msg_it->packet); | |
e5d25da2 | 1303 | BT_ASSERT_DBG(msg_it->self_msg_iter); |
3adcb386 FD |
1304 | BT_ASSERT_DBG(msg_it->meta.sc); |
1305 | ||
1306 | if (bt_stream_class_borrow_default_clock_class(msg_it->meta.sc->ir_sc)) { | |
26fc5aed | 1307 | msg = bt_message_event_create_with_packet_and_default_clock_snapshot( |
e5d25da2 | 1308 | msg_it->self_msg_iter, msg_it->meta.ec->ir_ec, |
3adcb386 | 1309 | msg_it->packet, msg_it->default_clock_snapshot); |
2c091c04 | 1310 | } else { |
e5d25da2 | 1311 | msg = bt_message_event_create_with_packet(msg_it->self_msg_iter, |
3adcb386 | 1312 | msg_it->meta.ec->ir_ec, msg_it->packet); |
2c091c04 PP |
1313 | } |
1314 | ||
d6e69534 | 1315 | if (!msg) { |
2246e99d FD |
1316 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1317 | "Cannot create event message: " | |
3adcb386 | 1318 | "msg-it-addr=%p, ec-addr=%p, ec-name=\"%s\", " |
312c056a | 1319 | "packet-addr=%p", |
3adcb386 FD |
1320 | msg_it, msg_it->meta.ec, |
1321 | msg_it->meta.ec->name->str, | |
1322 | msg_it->packet); | |
312c056a PP |
1323 | goto error; |
1324 | } | |
1325 | ||
1326 | goto end; | |
1327 | ||
1328 | error: | |
d6e69534 | 1329 | BT_MESSAGE_PUT_REF_AND_RESET(msg); |
18a1979b | 1330 | status = CTF_MSG_ITER_STATUS_ERROR; |
312c056a PP |
1331 | |
1332 | end: | |
3adcb386 | 1333 | BT_MESSAGE_MOVE_REF(msg_it->event_msg, msg); |
312c056a PP |
1334 | return status; |
1335 | } | |
1336 | ||
e98a2d6e | 1337 | static |
18a1979b SM |
1338 | enum ctf_msg_iter_status after_event_header_state( |
1339 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1340 | { |
18a1979b | 1341 | enum ctf_msg_iter_status status; |
e98a2d6e | 1342 | |
3adcb386 | 1343 | status = set_current_event_class(msg_it); |
18a1979b | 1344 | if (status != CTF_MSG_ITER_STATUS_OK) { |
e98a2d6e PP |
1345 | goto end; |
1346 | } | |
1347 | ||
3adcb386 | 1348 | if (G_UNLIKELY(msg_it->dry_run)) { |
de24a43f FD |
1349 | goto next_state; |
1350 | } | |
1351 | ||
3adcb386 | 1352 | status = set_current_event_message(msg_it); |
18a1979b | 1353 | if (status != CTF_MSG_ITER_STATUS_OK) { |
312c056a PP |
1354 | goto end; |
1355 | } | |
1356 | ||
3adcb386 FD |
1357 | msg_it->event = bt_message_event_borrow_event( |
1358 | msg_it->event_msg); | |
1359 | BT_ASSERT_DBG(msg_it->event); | |
de24a43f FD |
1360 | |
1361 | next_state: | |
3adcb386 | 1362 | msg_it->state = STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN; |
e98a2d6e PP |
1363 | |
1364 | end: | |
1365 | return status; | |
1366 | } | |
1367 | ||
1368 | static | |
18a1979b SM |
1369 | enum ctf_msg_iter_status read_event_common_context_begin_state( |
1370 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1371 | { |
18a1979b | 1372 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1373 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 1374 | struct ctf_field_class *event_common_context_fc; |
e98a2d6e | 1375 | |
3adcb386 | 1376 | event_common_context_fc = msg_it->meta.sc->event_common_context_fc; |
5cd6d0e5 | 1377 | if (!event_common_context_fc) { |
3adcb386 | 1378 | msg_it->state = STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN; |
e98a2d6e PP |
1379 | goto end; |
1380 | } | |
1381 | ||
3adcb386 FD |
1382 | if (event_common_context_fc->in_ir && !msg_it->dry_run) { |
1383 | BT_ASSERT_DBG(!msg_it->dscopes.event_common_context); | |
1384 | msg_it->dscopes.event_common_context = | |
40f4ba76 | 1385 | bt_event_borrow_common_context_field( |
3adcb386 FD |
1386 | msg_it->event); |
1387 | BT_ASSERT_DBG(msg_it->dscopes.event_common_context); | |
44c440bc PP |
1388 | } |
1389 | ||
ef267d12 | 1390 | BT_COMP_LOGT("Decoding event common context field: " |
3adcb386 | 1391 | "msg-it-addr=%p, stream-class-addr=%p, " |
44c440bc | 1392 | "stream-class-id=%" PRId64 ", " |
5cd6d0e5 | 1393 | "fc-addr=%p", |
3adcb386 FD |
1394 | msg_it, msg_it->meta.sc, |
1395 | msg_it->meta.sc->id, | |
5cd6d0e5 | 1396 | event_common_context_fc); |
3adcb386 | 1397 | status = read_dscope_begin_state(msg_it, event_common_context_fc, |
44c440bc PP |
1398 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN, |
1399 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE, | |
3adcb386 | 1400 | msg_it->dscopes.event_common_context); |
fdf0e7a0 | 1401 | if (status < 0) { |
2246e99d FD |
1402 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1403 | "Cannot decode event common context field: " | |
3adcb386 | 1404 | "msg-it-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 1405 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
3adcb386 FD |
1406 | msg_it, msg_it->meta.sc, |
1407 | msg_it->meta.sc->id, | |
5cd6d0e5 | 1408 | event_common_context_fc); |
fdf0e7a0 | 1409 | } |
e98a2d6e PP |
1410 | |
1411 | end: | |
e98a2d6e PP |
1412 | return status; |
1413 | } | |
1414 | ||
1415 | static | |
18a1979b SM |
1416 | enum ctf_msg_iter_status read_event_common_context_continue_state( |
1417 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1418 | { |
3adcb386 | 1419 | return read_dscope_continue_state(msg_it, |
44c440bc | 1420 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN); |
e98a2d6e PP |
1421 | } |
1422 | ||
1423 | static | |
18a1979b SM |
1424 | enum ctf_msg_iter_status read_event_spec_context_begin_state( |
1425 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1426 | { |
18a1979b | 1427 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1428 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 1429 | struct ctf_field_class *event_spec_context_fc; |
e98a2d6e | 1430 | |
3adcb386 | 1431 | event_spec_context_fc = msg_it->meta.ec->spec_context_fc; |
5cd6d0e5 | 1432 | if (!event_spec_context_fc) { |
3adcb386 | 1433 | msg_it->state = STATE_DSCOPE_EVENT_PAYLOAD_BEGIN; |
e98a2d6e PP |
1434 | goto end; |
1435 | } | |
fdf0e7a0 | 1436 | |
3adcb386 FD |
1437 | if (event_spec_context_fc->in_ir && !msg_it->dry_run) { |
1438 | BT_ASSERT_DBG(!msg_it->dscopes.event_spec_context); | |
1439 | msg_it->dscopes.event_spec_context = | |
40f4ba76 | 1440 | bt_event_borrow_specific_context_field( |
3adcb386 FD |
1441 | msg_it->event); |
1442 | BT_ASSERT_DBG(msg_it->dscopes.event_spec_context); | |
44c440bc PP |
1443 | } |
1444 | ||
ef267d12 | 1445 | BT_COMP_LOGT("Decoding event specific context field: " |
3adcb386 | 1446 | "msg-it-addr=%p, event-class-addr=%p, " |
fdf0e7a0 | 1447 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " |
5cd6d0e5 | 1448 | "fc-addr=%p", |
3adcb386 FD |
1449 | msg_it, msg_it->meta.ec, |
1450 | msg_it->meta.ec->name->str, | |
1451 | msg_it->meta.ec->id, | |
5cd6d0e5 | 1452 | event_spec_context_fc); |
3adcb386 | 1453 | status = read_dscope_begin_state(msg_it, event_spec_context_fc, |
e98a2d6e | 1454 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, |
44c440bc | 1455 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE, |
3adcb386 | 1456 | msg_it->dscopes.event_spec_context); |
fdf0e7a0 | 1457 | if (status < 0) { |
2246e99d FD |
1458 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1459 | "Cannot decode event specific context field: " | |
3adcb386 | 1460 | "msg-it-addr=%p, event-class-addr=%p, " |
fdf0e7a0 | 1461 | "event-class-name=\"%s\", " |
5cd6d0e5 | 1462 | "event-class-id=%" PRId64 ", fc-addr=%p", |
3adcb386 FD |
1463 | msg_it, msg_it->meta.ec, |
1464 | msg_it->meta.ec->name->str, | |
1465 | msg_it->meta.ec->id, | |
5cd6d0e5 | 1466 | event_spec_context_fc); |
fdf0e7a0 | 1467 | } |
e98a2d6e PP |
1468 | |
1469 | end: | |
e98a2d6e PP |
1470 | return status; |
1471 | } | |
1472 | ||
1473 | static | |
18a1979b SM |
1474 | enum ctf_msg_iter_status read_event_spec_context_continue_state( |
1475 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1476 | { |
3adcb386 | 1477 | return read_dscope_continue_state(msg_it, |
e98a2d6e PP |
1478 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN); |
1479 | } | |
1480 | ||
1481 | static | |
18a1979b SM |
1482 | enum ctf_msg_iter_status read_event_payload_begin_state( |
1483 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1484 | { |
18a1979b | 1485 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1486 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 1487 | struct ctf_field_class *event_payload_fc; |
e98a2d6e | 1488 | |
3adcb386 | 1489 | event_payload_fc = msg_it->meta.ec->payload_fc; |
5cd6d0e5 | 1490 | if (!event_payload_fc) { |
3adcb386 | 1491 | msg_it->state = STATE_EMIT_MSG_EVENT; |
e98a2d6e PP |
1492 | goto end; |
1493 | } | |
1494 | ||
3adcb386 FD |
1495 | if (event_payload_fc->in_ir && !msg_it->dry_run) { |
1496 | BT_ASSERT_DBG(!msg_it->dscopes.event_payload); | |
1497 | msg_it->dscopes.event_payload = | |
40f4ba76 | 1498 | bt_event_borrow_payload_field( |
3adcb386 FD |
1499 | msg_it->event); |
1500 | BT_ASSERT_DBG(msg_it->dscopes.event_payload); | |
44c440bc PP |
1501 | } |
1502 | ||
ef267d12 | 1503 | BT_COMP_LOGT("Decoding event payload field: " |
3adcb386 | 1504 | "msg-it-addr=%p, event-class-addr=%p, " |
fdf0e7a0 | 1505 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " |
5cd6d0e5 | 1506 | "fc-addr=%p", |
3adcb386 FD |
1507 | msg_it, msg_it->meta.ec, |
1508 | msg_it->meta.ec->name->str, | |
1509 | msg_it->meta.ec->id, | |
5cd6d0e5 | 1510 | event_payload_fc); |
3adcb386 | 1511 | status = read_dscope_begin_state(msg_it, event_payload_fc, |
d6e69534 | 1512 | STATE_EMIT_MSG_EVENT, |
e98a2d6e | 1513 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, |
3adcb386 | 1514 | msg_it->dscopes.event_payload); |
fdf0e7a0 | 1515 | if (status < 0) { |
2246e99d FD |
1516 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1517 | "Cannot decode event payload field: " | |
3adcb386 | 1518 | "msg-it-addr=%p, event-class-addr=%p, " |
fdf0e7a0 | 1519 | "event-class-name=\"%s\", " |
5cd6d0e5 | 1520 | "event-class-id=%" PRId64 ", fc-addr=%p", |
3adcb386 FD |
1521 | msg_it, msg_it->meta.ec, |
1522 | msg_it->meta.ec->name->str, | |
1523 | msg_it->meta.ec->id, | |
5cd6d0e5 | 1524 | event_payload_fc); |
fdf0e7a0 | 1525 | } |
e98a2d6e PP |
1526 | |
1527 | end: | |
e98a2d6e PP |
1528 | return status; |
1529 | } | |
1530 | ||
1531 | static | |
18a1979b SM |
1532 | enum ctf_msg_iter_status read_event_payload_continue_state( |
1533 | struct ctf_msg_iter *msg_it) | |
e98a2d6e | 1534 | { |
3adcb386 | 1535 | return read_dscope_continue_state(msg_it, STATE_EMIT_MSG_EVENT); |
e98a2d6e PP |
1536 | } |
1537 | ||
1538 | static | |
18a1979b | 1539 | enum ctf_msg_iter_status skip_packet_padding_state(struct ctf_msg_iter *msg_it) |
e98a2d6e | 1540 | { |
18a1979b | 1541 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
e98a2d6e | 1542 | size_t bits_to_skip; |
44269abb | 1543 | const enum state next_state = STATE_SWITCH_PACKET; |
e98a2d6e | 1544 | |
3adcb386 FD |
1545 | BT_ASSERT(msg_it->cur_exp_packet_total_size > 0); |
1546 | bits_to_skip = msg_it->cur_exp_packet_total_size - packet_at(msg_it); | |
e98a2d6e | 1547 | if (bits_to_skip == 0) { |
3adcb386 | 1548 | msg_it->state = next_state; |
e98a2d6e PP |
1549 | goto end; |
1550 | } else { | |
1551 | size_t bits_to_consume; | |
fdf0e7a0 | 1552 | |
3adcb386 FD |
1553 | BT_COMP_LOGD("Trying to skip %zu bits of padding: msg-it-addr=%p, size=%zu", |
1554 | bits_to_skip, msg_it, bits_to_skip); | |
1555 | status = buf_ensure_available_bits(msg_it); | |
18a1979b | 1556 | if (status != CTF_MSG_ITER_STATUS_OK) { |
e98a2d6e PP |
1557 | goto end; |
1558 | } | |
1559 | ||
3adcb386 FD |
1560 | bits_to_consume = MIN(buf_available_bits(msg_it), bits_to_skip); |
1561 | BT_COMP_LOGD("Skipping %zu bits of padding: msg-it-addr=%p, size=%zu", | |
1562 | bits_to_consume, msg_it, bits_to_consume); | |
1563 | buf_consume_bits(msg_it, bits_to_consume); | |
1564 | bits_to_skip = msg_it->cur_exp_packet_total_size - | |
1565 | packet_at(msg_it); | |
e98a2d6e | 1566 | if (bits_to_skip == 0) { |
3adcb386 | 1567 | msg_it->state = next_state; |
e98a2d6e PP |
1568 | goto end; |
1569 | } | |
1570 | } | |
1571 | ||
1572 | end: | |
1573 | return status; | |
1574 | } | |
1575 | ||
495490c5 | 1576 | static |
18a1979b SM |
1577 | enum ctf_msg_iter_status check_emit_msg_discarded_events( |
1578 | struct ctf_msg_iter *msg_it) | |
495490c5 | 1579 | { |
3adcb386 | 1580 | msg_it->state = STATE_EMIT_MSG_DISCARDED_EVENTS; |
495490c5 | 1581 | |
3adcb386 FD |
1582 | if (!msg_it->meta.sc->has_discarded_events) { |
1583 | msg_it->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; | |
afd45274 PP |
1584 | goto end; |
1585 | } | |
1586 | ||
3adcb386 FD |
1587 | if (msg_it->prev_packet_snapshots.discarded_events == UINT64_C(-1)) { |
1588 | if (msg_it->snapshots.discarded_events == 0 || | |
1589 | msg_it->snapshots.discarded_events == UINT64_C(-1)) { | |
495490c5 PP |
1590 | /* |
1591 | * Stream's first packet with no discarded | |
1592 | * events or no information about discarded | |
1593 | * events: do not emit. | |
1594 | */ | |
3adcb386 | 1595 | msg_it->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; |
495490c5 PP |
1596 | } |
1597 | } else { | |
1598 | /* | |
1599 | * If the previous packet has a value for this counter, | |
1600 | * then this counter is defined for the whole stream. | |
1601 | */ | |
3adcb386 | 1602 | BT_ASSERT(msg_it->snapshots.discarded_events != UINT64_C(-1)); |
495490c5 | 1603 | |
3adcb386 FD |
1604 | if (msg_it->snapshots.discarded_events - |
1605 | msg_it->prev_packet_snapshots.discarded_events == 0) { | |
495490c5 PP |
1606 | /* |
1607 | * No discarded events since previous packet: do | |
1608 | * not emit. | |
1609 | */ | |
3adcb386 | 1610 | msg_it->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; |
495490c5 PP |
1611 | } |
1612 | } | |
1613 | ||
afd45274 | 1614 | end: |
18a1979b | 1615 | return CTF_MSG_ITER_STATUS_OK; |
495490c5 PP |
1616 | } |
1617 | ||
1618 | static | |
18a1979b SM |
1619 | enum ctf_msg_iter_status check_emit_msg_discarded_packets( |
1620 | struct ctf_msg_iter *msg_it) | |
495490c5 | 1621 | { |
3adcb386 | 1622 | msg_it->state = STATE_EMIT_MSG_DISCARDED_PACKETS; |
495490c5 | 1623 | |
3adcb386 FD |
1624 | if (!msg_it->meta.sc->has_discarded_packets) { |
1625 | msg_it->state = STATE_EMIT_MSG_PACKET_BEGINNING; | |
afd45274 PP |
1626 | goto end; |
1627 | } | |
1628 | ||
3adcb386 | 1629 | if (msg_it->prev_packet_snapshots.packets == UINT64_C(-1)) { |
495490c5 PP |
1630 | /* |
1631 | * Stream's first packet or no information about | |
1632 | * discarded packets: do not emit. In other words, if | |
1633 | * this is the first packet and its sequence number is | |
1634 | * not 0, do not consider that packets were previously | |
1635 | * lost: we might be reading a partial stream (LTTng | |
1636 | * snapshot for example). | |
1637 | */ | |
3adcb386 | 1638 | msg_it->state = STATE_EMIT_MSG_PACKET_BEGINNING; |
495490c5 PP |
1639 | } else { |
1640 | /* | |
1641 | * If the previous packet has a value for this counter, | |
1642 | * then this counter is defined for the whole stream. | |
1643 | */ | |
3adcb386 | 1644 | BT_ASSERT(msg_it->snapshots.packets != UINT64_C(-1)); |
495490c5 | 1645 | |
3adcb386 FD |
1646 | if (msg_it->snapshots.packets - |
1647 | msg_it->prev_packet_snapshots.packets <= 1) { | |
495490c5 PP |
1648 | /* |
1649 | * No discarded packets since previous packet: | |
1650 | * do not emit. | |
1651 | */ | |
3adcb386 | 1652 | msg_it->state = STATE_EMIT_MSG_PACKET_BEGINNING; |
495490c5 PP |
1653 | } |
1654 | } | |
1655 | ||
afd45274 | 1656 | end: |
18a1979b | 1657 | return CTF_MSG_ITER_STATUS_OK; |
495490c5 PP |
1658 | } |
1659 | ||
e98a2d6e | 1660 | static inline |
18a1979b | 1661 | enum ctf_msg_iter_status handle_state(struct ctf_msg_iter *msg_it) |
e98a2d6e | 1662 | { |
18a1979b | 1663 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 1664 | const enum state state = msg_it->state; |
e98a2d6e | 1665 | |
3adcb386 FD |
1666 | BT_COMP_LOGT("Handling state: msg-it-addr=%p, state=%s", |
1667 | msg_it, state_string(state)); | |
e98a2d6e PP |
1668 | |
1669 | // TODO: optimalize! | |
fdf0e7a0 | 1670 | switch (state) { |
e98a2d6e | 1671 | case STATE_INIT: |
3adcb386 | 1672 | msg_it->state = STATE_SWITCH_PACKET; |
44269abb PP |
1673 | break; |
1674 | case STATE_SWITCH_PACKET: | |
3adcb386 | 1675 | status = switch_packet_state(msg_it); |
e98a2d6e PP |
1676 | break; |
1677 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
3adcb386 | 1678 | status = read_packet_header_begin_state(msg_it); |
e98a2d6e PP |
1679 | break; |
1680 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
3adcb386 | 1681 | status = read_packet_header_continue_state(msg_it); |
e98a2d6e PP |
1682 | break; |
1683 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
3adcb386 | 1684 | status = after_packet_header_state(msg_it); |
e98a2d6e PP |
1685 | break; |
1686 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
3adcb386 | 1687 | status = read_packet_context_begin_state(msg_it); |
e98a2d6e PP |
1688 | break; |
1689 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
3adcb386 | 1690 | status = read_packet_context_continue_state(msg_it); |
e98a2d6e PP |
1691 | break; |
1692 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
3adcb386 | 1693 | status = after_packet_context_state(msg_it); |
e98a2d6e | 1694 | break; |
fc917f65 | 1695 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
3adcb386 | 1696 | msg_it->state = STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS; |
495490c5 PP |
1697 | break; |
1698 | case STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS: | |
3adcb386 | 1699 | status = check_emit_msg_discarded_events(msg_it); |
495490c5 PP |
1700 | break; |
1701 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
3adcb386 | 1702 | msg_it->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; |
495490c5 PP |
1703 | break; |
1704 | case STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS: | |
3adcb386 | 1705 | status = check_emit_msg_discarded_packets(msg_it); |
495490c5 PP |
1706 | break; |
1707 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
3adcb386 | 1708 | msg_it->state = STATE_EMIT_MSG_PACKET_BEGINNING; |
f42867e2 | 1709 | break; |
fc917f65 | 1710 | case STATE_EMIT_MSG_PACKET_BEGINNING: |
3adcb386 | 1711 | msg_it->state = STATE_DSCOPE_EVENT_HEADER_BEGIN; |
e98a2d6e | 1712 | break; |
44c440bc | 1713 | case STATE_DSCOPE_EVENT_HEADER_BEGIN: |
3adcb386 | 1714 | status = read_event_header_begin_state(msg_it); |
e98a2d6e | 1715 | break; |
44c440bc | 1716 | case STATE_DSCOPE_EVENT_HEADER_CONTINUE: |
3adcb386 | 1717 | status = read_event_header_continue_state(msg_it); |
e98a2d6e | 1718 | break; |
44c440bc | 1719 | case STATE_AFTER_EVENT_HEADER: |
3adcb386 | 1720 | status = after_event_header_state(msg_it); |
e98a2d6e | 1721 | break; |
44c440bc | 1722 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN: |
3adcb386 | 1723 | status = read_event_common_context_begin_state(msg_it); |
e98a2d6e | 1724 | break; |
44c440bc | 1725 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE: |
3adcb386 | 1726 | status = read_event_common_context_continue_state(msg_it); |
e98a2d6e | 1727 | break; |
44c440bc | 1728 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN: |
3adcb386 | 1729 | status = read_event_spec_context_begin_state(msg_it); |
e98a2d6e | 1730 | break; |
44c440bc | 1731 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE: |
3adcb386 | 1732 | status = read_event_spec_context_continue_state(msg_it); |
e98a2d6e PP |
1733 | break; |
1734 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
3adcb386 | 1735 | status = read_event_payload_begin_state(msg_it); |
e98a2d6e PP |
1736 | break; |
1737 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
3adcb386 | 1738 | status = read_event_payload_continue_state(msg_it); |
e98a2d6e | 1739 | break; |
d6e69534 | 1740 | case STATE_EMIT_MSG_EVENT: |
3adcb386 | 1741 | msg_it->state = STATE_DSCOPE_EVENT_HEADER_BEGIN; |
e98a2d6e | 1742 | break; |
1eb28907 | 1743 | case STATE_EMIT_QUEUED_MSG_EVENT: |
3adcb386 | 1744 | msg_it->state = STATE_EMIT_MSG_EVENT; |
1eb28907 | 1745 | break; |
e98a2d6e | 1746 | case STATE_SKIP_PACKET_PADDING: |
3adcb386 | 1747 | status = skip_packet_padding_state(msg_it); |
e98a2d6e | 1748 | break; |
fc917f65 | 1749 | case STATE_EMIT_MSG_PACKET_END_MULTI: |
3adcb386 | 1750 | msg_it->state = STATE_SKIP_PACKET_PADDING; |
e98a2d6e | 1751 | break; |
fc917f65 | 1752 | case STATE_EMIT_MSG_PACKET_END_SINGLE: |
ed4ddc26 | 1753 | msg_it->state = STATE_EMIT_MSG_STREAM_END; |
fc917f65 | 1754 | break; |
1eb28907 | 1755 | case STATE_EMIT_QUEUED_MSG_PACKET_END: |
3adcb386 | 1756 | msg_it->state = STATE_EMIT_MSG_PACKET_END_SINGLE; |
1eb28907 | 1757 | break; |
fc917f65 | 1758 | case STATE_EMIT_MSG_STREAM_END: |
3adcb386 | 1759 | msg_it->state = STATE_DONE; |
fc917f65 PP |
1760 | break; |
1761 | case STATE_DONE: | |
1762 | break; | |
fdf0e7a0 | 1763 | default: |
eb7f6c4f | 1764 | BT_COMP_LOGF("Unknown CTF plugin message iterator state: " |
3adcb386 | 1765 | "msg-it-addr=%p, state=%d", msg_it, msg_it->state); |
498e7994 | 1766 | bt_common_abort(); |
e98a2d6e PP |
1767 | } |
1768 | ||
3adcb386 | 1769 | BT_COMP_LOGT("Handled state: msg-it-addr=%p, status=%s, " |
fdf0e7a0 | 1770 | "prev-state=%s, cur-state=%s", |
18a1979b | 1771 | msg_it, ctf_msg_iter_status_string(status), |
3adcb386 | 1772 | state_string(state), state_string(msg_it->state)); |
e98a2d6e PP |
1773 | return status; |
1774 | } | |
1775 | ||
f42867e2 | 1776 | BT_HIDDEN |
18a1979b | 1777 | void ctf_msg_iter_reset_for_next_stream_file(struct ctf_msg_iter *msg_it) |
3adcb386 FD |
1778 | { |
1779 | BT_ASSERT(msg_it); | |
1780 | BT_COMP_LOGD("Resetting message iterator: addr=%p", msg_it); | |
1781 | stack_clear(msg_it->stack); | |
1782 | msg_it->meta.sc = NULL; | |
1783 | msg_it->meta.ec = NULL; | |
1784 | BT_PACKET_PUT_REF_AND_RESET(msg_it->packet); | |
1785 | BT_STREAM_PUT_REF_AND_RESET(msg_it->stream); | |
1786 | BT_MESSAGE_PUT_REF_AND_RESET(msg_it->event_msg); | |
1787 | release_all_dscopes(msg_it); | |
1788 | msg_it->cur_dscope_field = NULL; | |
1789 | ||
3adcb386 FD |
1790 | msg_it->buf.addr = NULL; |
1791 | msg_it->buf.sz = 0; | |
1792 | msg_it->buf.at = 0; | |
1793 | msg_it->buf.last_eh_at = SIZE_MAX; | |
1794 | msg_it->buf.packet_offset = 0; | |
1795 | msg_it->state = STATE_INIT; | |
1796 | msg_it->cur_exp_packet_content_size = -1; | |
1797 | msg_it->cur_exp_packet_total_size = -1; | |
1798 | msg_it->cur_packet_offset = -1; | |
1799 | msg_it->cur_event_class_id = -1; | |
1800 | msg_it->snapshots.beginning_clock = UINT64_C(-1); | |
1801 | msg_it->snapshots.end_clock = UINT64_C(-1); | |
495490c5 PP |
1802 | } |
1803 | ||
1804 | /** | |
1805 | * Resets the internal state of a CTF message iterator. | |
1806 | */ | |
1807 | BT_HIDDEN | |
18a1979b | 1808 | void ctf_msg_iter_reset(struct ctf_msg_iter *msg_it) |
495490c5 | 1809 | { |
18a1979b | 1810 | ctf_msg_iter_reset_for_next_stream_file(msg_it); |
3adcb386 FD |
1811 | msg_it->cur_stream_class_id = -1; |
1812 | msg_it->cur_data_stream_id = -1; | |
1813 | msg_it->snapshots.discarded_events = UINT64_C(-1); | |
1814 | msg_it->snapshots.packets = UINT64_C(-1); | |
1815 | msg_it->prev_packet_snapshots.discarded_events = UINT64_C(-1); | |
1816 | msg_it->prev_packet_snapshots.packets = UINT64_C(-1); | |
1817 | msg_it->prev_packet_snapshots.beginning_clock = UINT64_C(-1); | |
1818 | msg_it->prev_packet_snapshots.end_clock = UINT64_C(-1); | |
bc0ae364 | 1819 | msg_it->emit_stream_beginning_message = true; |
e98a2d6e PP |
1820 | } |
1821 | ||
1822 | static | |
18a1979b | 1823 | bt_field *borrow_next_field(struct ctf_msg_iter *msg_it) |
e98a2d6e | 1824 | { |
b19ff26f PP |
1825 | bt_field *next_field = NULL; |
1826 | bt_field *base_field; | |
1827 | const bt_field_class *base_fc; | |
ebdb6693 | 1828 | bt_field_class_type base_fc_type; |
e98a2d6e PP |
1829 | size_t index; |
1830 | ||
3adcb386 FD |
1831 | BT_ASSERT_DBG(!stack_empty(msg_it->stack)); |
1832 | index = stack_top(msg_it->stack)->index; | |
1833 | base_field = stack_top(msg_it->stack)->base; | |
98b15851 | 1834 | BT_ASSERT_DBG(base_field); |
40f4ba76 | 1835 | base_fc = bt_field_borrow_class_const(base_field); |
98b15851 | 1836 | BT_ASSERT_DBG(base_fc); |
ebdb6693 | 1837 | base_fc_type = bt_field_class_get_type(base_fc); |
e98a2d6e | 1838 | |
ebdb6693 | 1839 | if (base_fc_type == BT_FIELD_CLASS_TYPE_STRUCTURE) { |
98b15851 | 1840 | BT_ASSERT_DBG(index < |
5cd6d0e5 | 1841 | bt_field_class_structure_get_member_count( |
40f4ba76 PP |
1842 | bt_field_borrow_class_const( |
1843 | base_field))); | |
e5be10ef | 1844 | next_field = |
40f4ba76 | 1845 | bt_field_structure_borrow_member_field_by_index( |
e5be10ef | 1846 | base_field, index); |
ebdb6693 PP |
1847 | } else if (bt_field_class_type_is(base_fc_type, |
1848 | BT_FIELD_CLASS_TYPE_ARRAY)) { | |
98b15851 | 1849 | BT_ASSERT_DBG(index < bt_field_array_get_length(base_field)); |
40f4ba76 | 1850 | next_field = bt_field_array_borrow_element_field_by_index( |
44c440bc | 1851 | base_field, index); |
ebdb6693 PP |
1852 | } else if (bt_field_class_type_is(base_fc_type, |
1853 | BT_FIELD_CLASS_TYPE_VARIANT)) { | |
98b15851 | 1854 | BT_ASSERT_DBG(index == 0); |
40f4ba76 | 1855 | next_field = bt_field_variant_borrow_selected_option_field( |
44c440bc | 1856 | base_field); |
ebdb6693 | 1857 | } else { |
498e7994 | 1858 | bt_common_abort(); |
e98a2d6e PP |
1859 | } |
1860 | ||
98b15851 | 1861 | BT_ASSERT_DBG(next_field); |
e98a2d6e PP |
1862 | return next_field; |
1863 | } | |
1864 | ||
c44c3e70 | 1865 | static |
18a1979b | 1866 | void update_default_clock(struct ctf_msg_iter *msg_it, uint64_t new_val, |
44c440bc | 1867 | uint64_t new_val_size) |
c44c3e70 | 1868 | { |
44c440bc | 1869 | uint64_t new_val_mask; |
c44c3e70 | 1870 | uint64_t cur_value_masked; |
c44c3e70 | 1871 | |
98b15851 | 1872 | BT_ASSERT_DBG(new_val_size > 0); |
c44c3e70 JG |
1873 | |
1874 | /* | |
1875 | * Special case for a 64-bit new value, which is the limit | |
1876 | * of a clock value as of this version: overwrite the | |
1877 | * current value directly. | |
1878 | */ | |
44c440bc | 1879 | if (new_val_size == 64) { |
3adcb386 | 1880 | msg_it->default_clock_snapshot = new_val; |
c44c3e70 JG |
1881 | goto end; |
1882 | } | |
1883 | ||
44c440bc | 1884 | new_val_mask = (1ULL << new_val_size) - 1; |
3adcb386 | 1885 | cur_value_masked = msg_it->default_clock_snapshot & new_val_mask; |
c44c3e70 | 1886 | |
44c440bc | 1887 | if (new_val < cur_value_masked) { |
c44c3e70 JG |
1888 | /* |
1889 | * It looks like a wrap happened on the number of bits | |
1890 | * of the requested new value. Assume that the clock | |
1891 | * value wrapped only one time. | |
1892 | */ | |
3adcb386 | 1893 | msg_it->default_clock_snapshot += new_val_mask + 1; |
c44c3e70 JG |
1894 | } |
1895 | ||
1896 | /* Clear the low bits of the current clock value. */ | |
3adcb386 | 1897 | msg_it->default_clock_snapshot &= ~new_val_mask; |
c44c3e70 JG |
1898 | |
1899 | /* Set the low bits of the current clock value. */ | |
3adcb386 | 1900 | msg_it->default_clock_snapshot |= new_val; |
d1e46835 | 1901 | |
c44c3e70 | 1902 | end: |
ef267d12 | 1903 | BT_COMP_LOGT("Updated default clock's value from integer field's value: " |
3adcb386 | 1904 | "value=%" PRIu64, msg_it->default_clock_snapshot); |
c44c3e70 JG |
1905 | } |
1906 | ||
1907 | static | |
5cd6d0e5 PP |
1908 | enum bt_bfcr_status bfcr_unsigned_int_cb(uint64_t value, |
1909 | struct ctf_field_class *fc, void *data) | |
c44c3e70 | 1910 | { |
18a1979b | 1911 | struct ctf_msg_iter *msg_it = data; |
3adcb386 | 1912 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 1913 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
2246e99d | 1914 | |
b19ff26f | 1915 | bt_field *field = NULL; |
5cd6d0e5 | 1916 | struct ctf_field_class_int *int_fc = (void *) fc; |
c44c3e70 | 1917 | |
ef267d12 | 1918 | BT_COMP_LOGT("Unsigned integer function called from BFCR: " |
3adcb386 | 1919 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 1920 | "fc-type=%d, fc-in-ir=%d, value=%" PRIu64, |
3adcb386 | 1921 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir, value); |
312c056a | 1922 | |
91d81473 | 1923 | if (G_LIKELY(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE)) { |
44c440bc | 1924 | goto update_def_clock; |
c44c3e70 JG |
1925 | } |
1926 | ||
5cd6d0e5 PP |
1927 | switch (int_fc->meaning) { |
1928 | case CTF_FIELD_CLASS_MEANING_EVENT_CLASS_ID: | |
3adcb386 | 1929 | msg_it->cur_event_class_id = value; |
44c440bc | 1930 | break; |
5cd6d0e5 | 1931 | case CTF_FIELD_CLASS_MEANING_DATA_STREAM_ID: |
3adcb386 | 1932 | msg_it->cur_data_stream_id = value; |
44c440bc | 1933 | break; |
5cd6d0e5 | 1934 | case CTF_FIELD_CLASS_MEANING_PACKET_BEGINNING_TIME: |
3adcb386 | 1935 | msg_it->snapshots.beginning_clock = value; |
44c440bc | 1936 | break; |
5cd6d0e5 | 1937 | case CTF_FIELD_CLASS_MEANING_PACKET_END_TIME: |
3adcb386 | 1938 | msg_it->snapshots.end_clock = value; |
44c440bc | 1939 | break; |
5cd6d0e5 | 1940 | case CTF_FIELD_CLASS_MEANING_STREAM_CLASS_ID: |
3adcb386 | 1941 | msg_it->cur_stream_class_id = value; |
44c440bc | 1942 | break; |
5cd6d0e5 | 1943 | case CTF_FIELD_CLASS_MEANING_MAGIC: |
44c440bc | 1944 | if (value != 0xc1fc1fc1) { |
2246e99d | 1945 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
3adcb386 FD |
1946 | "Invalid CTF magic number: msg-it-addr=%p, " |
1947 | "magic=%" PRIx64, msg_it, value); | |
5cd6d0e5 | 1948 | status = BT_BFCR_STATUS_ERROR; |
c44c3e70 JG |
1949 | goto end; |
1950 | } | |
fdf0e7a0 | 1951 | |
44c440bc | 1952 | break; |
5cd6d0e5 | 1953 | case CTF_FIELD_CLASS_MEANING_PACKET_COUNTER_SNAPSHOT: |
3adcb386 | 1954 | msg_it->snapshots.packets = value; |
44c440bc | 1955 | break; |
5cd6d0e5 | 1956 | case CTF_FIELD_CLASS_MEANING_DISC_EV_REC_COUNTER_SNAPSHOT: |
3adcb386 | 1957 | msg_it->snapshots.discarded_events = value; |
44c440bc | 1958 | break; |
5cd6d0e5 | 1959 | case CTF_FIELD_CLASS_MEANING_EXP_PACKET_TOTAL_SIZE: |
3adcb386 | 1960 | msg_it->cur_exp_packet_total_size = value; |
44c440bc | 1961 | break; |
5cd6d0e5 | 1962 | case CTF_FIELD_CLASS_MEANING_EXP_PACKET_CONTENT_SIZE: |
3adcb386 | 1963 | msg_it->cur_exp_packet_content_size = value; |
44c440bc PP |
1964 | break; |
1965 | default: | |
498e7994 | 1966 | bt_common_abort(); |
c44c3e70 JG |
1967 | } |
1968 | ||
44c440bc | 1969 | update_def_clock: |
91d81473 | 1970 | if (G_UNLIKELY(int_fc->mapped_clock_class)) { |
3adcb386 | 1971 | update_default_clock(msg_it, value, int_fc->base.size); |
44c440bc | 1972 | } |
c44c3e70 | 1973 | |
91d81473 | 1974 | if (G_UNLIKELY(int_fc->storing_index >= 0)) { |
3adcb386 | 1975 | g_array_index(msg_it->stored_values, uint64_t, |
5cd6d0e5 | 1976 | (uint64_t) int_fc->storing_index) = value; |
44c440bc | 1977 | } |
e98a2d6e | 1978 | |
3adcb386 | 1979 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
312c056a | 1980 | goto end; |
e98a2d6e PP |
1981 | } |
1982 | ||
3adcb386 | 1983 | field = borrow_next_field(msg_it); |
98b15851 PP |
1984 | BT_ASSERT_DBG(field); |
1985 | BT_ASSERT_DBG(bt_field_borrow_class_const(field) == fc->ir_fc); | |
1986 | BT_ASSERT_DBG(bt_field_class_type_is(bt_field_get_class_type(field), | |
ebdb6693 | 1987 | BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER)); |
9c08c816 | 1988 | bt_field_integer_unsigned_set_value(field, value); |
3adcb386 | 1989 | stack_top(msg_it->stack)->index++; |
fdf0e7a0 | 1990 | |
312c056a | 1991 | end: |
e98a2d6e PP |
1992 | return status; |
1993 | } | |
1994 | ||
5f870343 | 1995 | static |
5cd6d0e5 PP |
1996 | enum bt_bfcr_status bfcr_unsigned_int_char_cb(uint64_t value, |
1997 | struct ctf_field_class *fc, void *data) | |
5f870343 | 1998 | { |
44c440bc | 1999 | int ret; |
18a1979b | 2000 | struct ctf_msg_iter *msg_it = data; |
3adcb386 | 2001 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 2002 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2003 | bt_field *string_field = NULL; |
5cd6d0e5 | 2004 | struct ctf_field_class_int *int_fc = (void *) fc; |
44c440bc | 2005 | char str[2] = {'\0', '\0'}; |
5f870343 | 2006 | |
ef267d12 | 2007 | BT_COMP_LOGT("Unsigned integer character function called from BFCR: " |
3adcb386 | 2008 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 2009 | "fc-type=%d, fc-in-ir=%d, value=%" PRIu64, |
3adcb386 | 2010 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir, value); |
98b15851 PP |
2011 | BT_ASSERT_DBG(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE); |
2012 | BT_ASSERT_DBG(!int_fc->mapped_clock_class); | |
2013 | BT_ASSERT_DBG(int_fc->storing_index < 0); | |
312c056a | 2014 | |
3adcb386 | 2015 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
44c440bc PP |
2016 | goto end; |
2017 | } | |
5f870343 | 2018 | |
3adcb386 | 2019 | if (msg_it->done_filling_string) { |
5f870343 JG |
2020 | goto end; |
2021 | } | |
2022 | ||
44c440bc | 2023 | if (value == 0) { |
3adcb386 | 2024 | msg_it->done_filling_string = true; |
5f870343 JG |
2025 | goto end; |
2026 | } | |
2027 | ||
3adcb386 | 2028 | string_field = stack_top(msg_it->stack)->base; |
98b15851 | 2029 | BT_ASSERT_DBG(bt_field_get_class_type(string_field) == |
ebdb6693 | 2030 | BT_FIELD_CLASS_TYPE_STRING); |
44c440bc PP |
2031 | |
2032 | /* Append character */ | |
2033 | str[0] = (char) value; | |
40f4ba76 | 2034 | ret = bt_field_string_append_with_length(string_field, str, 1); |
44c440bc | 2035 | if (ret) { |
2246e99d FD |
2036 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2037 | "Cannot append character to string field's value: " | |
3adcb386 FD |
2038 | "msg-it-addr=%p, field-addr=%p, ret=%d", |
2039 | msg_it, string_field, ret); | |
5cd6d0e5 | 2040 | status = BT_BFCR_STATUS_ERROR; |
44c440bc PP |
2041 | goto end; |
2042 | } | |
312c056a | 2043 | |
5f870343 JG |
2044 | end: |
2045 | return status; | |
2046 | } | |
2047 | ||
2048 | static | |
5cd6d0e5 PP |
2049 | enum bt_bfcr_status bfcr_signed_int_cb(int64_t value, |
2050 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2051 | { |
5cd6d0e5 | 2052 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2053 | bt_field *field = NULL; |
18a1979b | 2054 | struct ctf_msg_iter *msg_it = data; |
5cd6d0e5 | 2055 | struct ctf_field_class_int *int_fc = (void *) fc; |
e98a2d6e | 2056 | |
ef267d12 | 2057 | BT_COMP_LOGT("Signed integer function called from BFCR: " |
3adcb386 | 2058 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 2059 | "fc-type=%d, fc-in-ir=%d, value=%" PRId64, |
3adcb386 | 2060 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir, value); |
98b15851 | 2061 | BT_ASSERT_DBG(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE); |
44c440bc | 2062 | |
91d81473 | 2063 | if (G_UNLIKELY(int_fc->storing_index >= 0)) { |
3adcb386 | 2064 | g_array_index(msg_it->stored_values, uint64_t, |
5cd6d0e5 | 2065 | (uint64_t) int_fc->storing_index) = (uint64_t) value; |
44c440bc PP |
2066 | } |
2067 | ||
3adcb386 | 2068 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
312c056a | 2069 | goto end; |
e98a2d6e PP |
2070 | } |
2071 | ||
3adcb386 | 2072 | field = borrow_next_field(msg_it); |
98b15851 PP |
2073 | BT_ASSERT_DBG(field); |
2074 | BT_ASSERT_DBG(bt_field_borrow_class_const(field) == fc->ir_fc); | |
2075 | BT_ASSERT_DBG(bt_field_class_type_is(bt_field_get_class_type(field), | |
ebdb6693 | 2076 | BT_FIELD_CLASS_TYPE_SIGNED_INTEGER)); |
9c08c816 | 2077 | bt_field_integer_signed_set_value(field, value); |
3adcb386 | 2078 | stack_top(msg_it->stack)->index++; |
fdf0e7a0 | 2079 | |
312c056a | 2080 | end: |
e98a2d6e PP |
2081 | return status; |
2082 | } | |
2083 | ||
2084 | static | |
5cd6d0e5 PP |
2085 | enum bt_bfcr_status bfcr_floating_point_cb(double value, |
2086 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2087 | { |
5cd6d0e5 | 2088 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2089 | bt_field *field = NULL; |
18a1979b | 2090 | struct ctf_msg_iter *msg_it = data; |
96741e7f | 2091 | bt_field_class_type type; |
e98a2d6e | 2092 | |
ef267d12 | 2093 | BT_COMP_LOGT("Floating point number function called from BFCR: " |
3adcb386 | 2094 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 2095 | "fc-type=%d, fc-in-ir=%d, value=%f", |
3adcb386 | 2096 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir, value); |
41693723 | 2097 | |
3adcb386 | 2098 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
41693723 PP |
2099 | goto end; |
2100 | } | |
2101 | ||
3adcb386 | 2102 | field = borrow_next_field(msg_it); |
96741e7f | 2103 | type = bt_field_get_class_type(field); |
98b15851 PP |
2104 | BT_ASSERT_DBG(field); |
2105 | BT_ASSERT_DBG(bt_field_borrow_class_const(field) == fc->ir_fc); | |
2106 | BT_ASSERT_DBG(bt_field_class_type_is(type, BT_FIELD_CLASS_TYPE_REAL)); | |
fe4df857 FD |
2107 | |
2108 | if (type == BT_FIELD_CLASS_TYPE_SINGLE_PRECISION_REAL) { | |
2109 | bt_field_real_single_precision_set_value(field, (float) value); | |
2110 | } else { | |
2111 | bt_field_real_double_precision_set_value(field, value); | |
2112 | } | |
3adcb386 | 2113 | stack_top(msg_it->stack)->index++; |
41693723 PP |
2114 | |
2115 | end: | |
e98a2d6e PP |
2116 | return status; |
2117 | } | |
2118 | ||
2119 | static | |
5cd6d0e5 PP |
2120 | enum bt_bfcr_status bfcr_string_begin_cb( |
2121 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2122 | { |
b19ff26f | 2123 | bt_field *field = NULL; |
18a1979b | 2124 | struct ctf_msg_iter *msg_it = data; |
e98a2d6e | 2125 | |
ef267d12 | 2126 | BT_COMP_LOGT("String (beginning) function called from BFCR: " |
3adcb386 | 2127 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 2128 | "fc-type=%d, fc-in-ir=%d", |
3adcb386 | 2129 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir); |
e98a2d6e | 2130 | |
3adcb386 | 2131 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
41693723 PP |
2132 | goto end; |
2133 | } | |
2134 | ||
3adcb386 | 2135 | field = borrow_next_field(msg_it); |
98b15851 PP |
2136 | BT_ASSERT_DBG(field); |
2137 | BT_ASSERT_DBG(bt_field_borrow_class_const(field) == fc->ir_fc); | |
2138 | BT_ASSERT_DBG(bt_field_get_class_type(field) == | |
40f4ba76 | 2139 | BT_FIELD_CLASS_TYPE_STRING); |
d24d5663 | 2140 | bt_field_string_clear(field); |
312c056a | 2141 | |
e98a2d6e | 2142 | /* |
5cd6d0e5 PP |
2143 | * Push on stack. Not a compound class per se, but we know that |
2144 | * only bfcr_string_cb() may be called between this call and a | |
2145 | * subsequent call to bfcr_string_end_cb(). | |
e98a2d6e | 2146 | */ |
3adcb386 | 2147 | stack_push(msg_it->stack, field); |
41693723 PP |
2148 | |
2149 | end: | |
5cd6d0e5 | 2150 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2151 | } |
2152 | ||
2153 | static | |
5cd6d0e5 PP |
2154 | enum bt_bfcr_status bfcr_string_cb(const char *value, |
2155 | size_t len, struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2156 | { |
5cd6d0e5 | 2157 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2158 | bt_field *field = NULL; |
18a1979b | 2159 | struct ctf_msg_iter *msg_it = data; |
3adcb386 | 2160 | bt_self_component *self_comp = msg_it->self_comp; |
e98a2d6e PP |
2161 | int ret; |
2162 | ||
ef267d12 | 2163 | BT_COMP_LOGT("String (substring) function called from BFCR: " |
3adcb386 | 2164 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 2165 | "fc-type=%d, fc-in-ir=%d, string-length=%zu", |
3adcb386 | 2166 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir, |
fdf0e7a0 | 2167 | len); |
41693723 | 2168 | |
3adcb386 | 2169 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
41693723 PP |
2170 | goto end; |
2171 | } | |
2172 | ||
3adcb386 | 2173 | field = stack_top(msg_it->stack)->base; |
98b15851 | 2174 | BT_ASSERT_DBG(field); |
e98a2d6e | 2175 | |
312c056a | 2176 | /* Append current substring */ |
40f4ba76 | 2177 | ret = bt_field_string_append_with_length(field, value, len); |
e98a2d6e | 2178 | if (ret) { |
2246e99d FD |
2179 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2180 | "Cannot append substring to string field's value: " | |
3adcb386 FD |
2181 | "msg-it-addr=%p, field-addr=%p, string-length=%zu, " |
2182 | "ret=%d", msg_it, field, len, ret); | |
5cd6d0e5 | 2183 | status = BT_BFCR_STATUS_ERROR; |
e98a2d6e PP |
2184 | goto end; |
2185 | } | |
2186 | ||
2187 | end: | |
2188 | return status; | |
2189 | } | |
2190 | ||
2191 | static | |
5cd6d0e5 PP |
2192 | enum bt_bfcr_status bfcr_string_end_cb( |
2193 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2194 | { |
18a1979b | 2195 | struct ctf_msg_iter *msg_it = data; |
e98a2d6e | 2196 | |
ef267d12 | 2197 | BT_COMP_LOGT("String (end) function called from BFCR: " |
3adcb386 | 2198 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 2199 | "fc-type=%d, fc-in-ir=%d", |
3adcb386 | 2200 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir); |
41693723 | 2201 | |
3adcb386 | 2202 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
41693723 PP |
2203 | goto end; |
2204 | } | |
fdf0e7a0 | 2205 | |
e98a2d6e | 2206 | /* Pop string field */ |
3adcb386 | 2207 | stack_pop(msg_it->stack); |
e98a2d6e PP |
2208 | |
2209 | /* Go to next field */ | |
3adcb386 | 2210 | stack_top(msg_it->stack)->index++; |
41693723 PP |
2211 | |
2212 | end: | |
5cd6d0e5 | 2213 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2214 | } |
2215 | ||
7c7301d5 | 2216 | static |
5cd6d0e5 PP |
2217 | enum bt_bfcr_status bfcr_compound_begin_cb( |
2218 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2219 | { |
18a1979b | 2220 | struct ctf_msg_iter *msg_it = data; |
b19ff26f | 2221 | bt_field *field; |
e98a2d6e | 2222 | |
ef267d12 | 2223 | BT_COMP_LOGT("Compound (beginning) function called from BFCR: " |
3adcb386 | 2224 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 2225 | "fc-type=%d, fc-in-ir=%d", |
3adcb386 | 2226 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir); |
44c440bc | 2227 | |
3adcb386 | 2228 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
44c440bc PP |
2229 | goto end; |
2230 | } | |
fdf0e7a0 | 2231 | |
312c056a | 2232 | /* Borrow field */ |
3adcb386 | 2233 | if (stack_empty(msg_it->stack)) { |
312c056a | 2234 | /* Root: already set by read_dscope_begin_state() */ |
3adcb386 | 2235 | field = msg_it->cur_dscope_field; |
e98a2d6e | 2236 | } else { |
3adcb386 | 2237 | field = borrow_next_field(msg_it); |
98b15851 | 2238 | BT_ASSERT_DBG(field); |
e98a2d6e PP |
2239 | } |
2240 | ||
2241 | /* Push field */ | |
98b15851 PP |
2242 | BT_ASSERT_DBG(field); |
2243 | BT_ASSERT_DBG(bt_field_borrow_class_const(field) == fc->ir_fc); | |
3adcb386 | 2244 | stack_push(msg_it->stack, field); |
44c440bc PP |
2245 | |
2246 | /* | |
5cd6d0e5 | 2247 | * Change BFCR "unsigned int" callback if it's a text |
44c440bc PP |
2248 | * array/sequence. |
2249 | */ | |
864cad70 PP |
2250 | if (fc->type == CTF_FIELD_CLASS_TYPE_ARRAY || |
2251 | fc->type == CTF_FIELD_CLASS_TYPE_SEQUENCE) { | |
5cd6d0e5 | 2252 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
44c440bc | 2253 | |
5cd6d0e5 | 2254 | if (array_fc->is_text) { |
98b15851 | 2255 | BT_ASSERT_DBG(bt_field_get_class_type(field) == |
40f4ba76 | 2256 | BT_FIELD_CLASS_TYPE_STRING); |
3adcb386 | 2257 | msg_it->done_filling_string = false; |
d24d5663 | 2258 | bt_field_string_clear(field); |
3adcb386 | 2259 | bt_bfcr_set_unsigned_int_cb(msg_it->bfcr, |
5cd6d0e5 | 2260 | bfcr_unsigned_int_char_cb); |
44c440bc | 2261 | } |
e98a2d6e PP |
2262 | } |
2263 | ||
2264 | end: | |
5cd6d0e5 | 2265 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2266 | } |
2267 | ||
7c7301d5 | 2268 | static |
5cd6d0e5 PP |
2269 | enum bt_bfcr_status bfcr_compound_end_cb( |
2270 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2271 | { |
18a1979b | 2272 | struct ctf_msg_iter *msg_it = data; |
e98a2d6e | 2273 | |
ef267d12 | 2274 | BT_COMP_LOGT("Compound (end) function called from BFCR: " |
3adcb386 | 2275 | "msg-it-addr=%p, bfcr-addr=%p, fc-addr=%p, " |
864cad70 | 2276 | "fc-type=%d, fc-in-ir=%d", |
3adcb386 | 2277 | msg_it, msg_it->bfcr, fc, fc->type, fc->in_ir); |
e98a2d6e | 2278 | |
3adcb386 | 2279 | if (G_UNLIKELY(!fc->in_ir || msg_it->dry_run)) { |
e98a2d6e PP |
2280 | goto end; |
2281 | } | |
2282 | ||
3adcb386 FD |
2283 | BT_ASSERT_DBG(!stack_empty(msg_it->stack)); |
2284 | BT_ASSERT_DBG(bt_field_borrow_class_const(stack_top(msg_it->stack)->base) == | |
5cd6d0e5 | 2285 | fc->ir_fc); |
e98a2d6e | 2286 | |
44c440bc | 2287 | /* |
5cd6d0e5 | 2288 | * Reset BFCR "unsigned int" callback if it's a text |
44c440bc PP |
2289 | * array/sequence. |
2290 | */ | |
864cad70 PP |
2291 | if (fc->type == CTF_FIELD_CLASS_TYPE_ARRAY || |
2292 | fc->type == CTF_FIELD_CLASS_TYPE_SEQUENCE) { | |
5cd6d0e5 | 2293 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
44c440bc | 2294 | |
5cd6d0e5 | 2295 | if (array_fc->is_text) { |
98b15851 | 2296 | BT_ASSERT_DBG(bt_field_get_class_type( |
3adcb386 | 2297 | stack_top(msg_it->stack)->base) == |
e5be10ef | 2298 | BT_FIELD_CLASS_TYPE_STRING); |
3adcb386 | 2299 | bt_bfcr_set_unsigned_int_cb(msg_it->bfcr, |
5cd6d0e5 | 2300 | bfcr_unsigned_int_cb); |
e98a2d6e | 2301 | } |
44c440bc | 2302 | } |
e98a2d6e | 2303 | |
44c440bc | 2304 | /* Pop stack */ |
3adcb386 | 2305 | stack_pop(msg_it->stack); |
e98a2d6e | 2306 | |
44c440bc | 2307 | /* If the stack is not empty, increment the base's index */ |
3adcb386 FD |
2308 | if (!stack_empty(msg_it->stack)) { |
2309 | stack_top(msg_it->stack)->index++; | |
e98a2d6e PP |
2310 | } |
2311 | ||
2312 | end: | |
5cd6d0e5 | 2313 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2314 | } |
2315 | ||
2316 | static | |
5cd6d0e5 | 2317 | int64_t bfcr_get_sequence_length_cb(struct ctf_field_class *fc, void *data) |
e98a2d6e | 2318 | { |
b19ff26f | 2319 | bt_field *seq_field; |
18a1979b | 2320 | struct ctf_msg_iter *msg_it = data; |
3adcb386 | 2321 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 2322 | struct ctf_field_class_sequence *seq_fc = (void *) fc; |
2246e99d | 2323 | int64_t length; |
44c440bc | 2324 | int ret; |
e98a2d6e | 2325 | |
3adcb386 | 2326 | length = (uint64_t) g_array_index(msg_it->stored_values, uint64_t, |
5cd6d0e5 | 2327 | seq_fc->stored_length_index); |
de24a43f | 2328 | |
3adcb386 | 2329 | if (G_UNLIKELY(msg_it->dry_run)){ |
de24a43f FD |
2330 | goto end; |
2331 | } | |
2332 | ||
3adcb386 | 2333 | seq_field = stack_top(msg_it->stack)->base; |
98b15851 | 2334 | BT_ASSERT_DBG(seq_field); |
785a6bba PP |
2335 | |
2336 | /* | |
2337 | * bfcr_get_sequence_length_cb() also gets called back for a | |
2338 | * text sequence, but the destination field is a string field. | |
2339 | * Only set the field's sequence length if the destination field | |
2340 | * is a sequence field. | |
2341 | */ | |
2342 | if (!seq_fc->base.is_text) { | |
98b15851 | 2343 | BT_ASSERT_DBG(bt_field_class_type_is( |
ebdb6693 PP |
2344 | bt_field_get_class_type(seq_field), |
2345 | BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY)); | |
9c08c816 | 2346 | ret = bt_field_array_dynamic_set_length(seq_field, |
785a6bba PP |
2347 | (uint64_t) length); |
2348 | if (ret) { | |
2246e99d FD |
2349 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2350 | "Cannot set dynamic array field's length field: " | |
3adcb386 FD |
2351 | "msg-it-addr=%p, field-addr=%p, " |
2352 | "length=%" PRIu64, msg_it, seq_field, length); | |
2246e99d | 2353 | length = -1; |
785a6bba | 2354 | } |
2cf1d51e | 2355 | } |
fdf0e7a0 | 2356 | |
de24a43f | 2357 | end: |
44c440bc | 2358 | return length; |
e98a2d6e PP |
2359 | } |
2360 | ||
2361 | static | |
5cd6d0e5 PP |
2362 | struct ctf_field_class *bfcr_borrow_variant_selected_field_class_cb( |
2363 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2364 | { |
312c056a | 2365 | int ret; |
44c440bc PP |
2366 | uint64_t i; |
2367 | int64_t option_index = -1; | |
18a1979b | 2368 | struct ctf_msg_iter *msg_it = data; |
5cd6d0e5 PP |
2369 | struct ctf_field_class_variant *var_fc = (void *) fc; |
2370 | struct ctf_named_field_class *selected_option = NULL; | |
3adcb386 | 2371 | bt_self_component *self_comp = msg_it->self_comp; |
5cd6d0e5 | 2372 | struct ctf_field_class *ret_fc = NULL; |
44c440bc PP |
2373 | union { |
2374 | uint64_t u; | |
2375 | int64_t i; | |
2376 | } tag; | |
2377 | ||
2378 | /* Get variant's tag */ | |
3adcb386 | 2379 | tag.u = g_array_index(msg_it->stored_values, uint64_t, |
5cd6d0e5 | 2380 | var_fc->stored_tag_index); |
e98a2d6e PP |
2381 | |
2382 | /* | |
44c440bc | 2383 | * Check each range to find the selected option's index. |
e98a2d6e | 2384 | */ |
5cd6d0e5 PP |
2385 | if (var_fc->tag_fc->base.is_signed) { |
2386 | for (i = 0; i < var_fc->ranges->len; i++) { | |
2387 | struct ctf_field_class_variant_range *range = | |
2388 | ctf_field_class_variant_borrow_range_by_index( | |
2389 | var_fc, i); | |
44c440bc PP |
2390 | |
2391 | if (tag.i >= range->range.lower.i && | |
2392 | tag.i <= range->range.upper.i) { | |
2393 | option_index = (int64_t) range->option_index; | |
2394 | break; | |
2395 | } | |
2396 | } | |
312c056a | 2397 | } else { |
5cd6d0e5 PP |
2398 | for (i = 0; i < var_fc->ranges->len; i++) { |
2399 | struct ctf_field_class_variant_range *range = | |
2400 | ctf_field_class_variant_borrow_range_by_index( | |
2401 | var_fc, i); | |
44c440bc PP |
2402 | |
2403 | if (tag.u >= range->range.lower.u && | |
2404 | tag.u <= range->range.upper.u) { | |
2405 | option_index = (int64_t) range->option_index; | |
2406 | break; | |
2407 | } | |
2408 | } | |
312c056a PP |
2409 | } |
2410 | ||
44c440bc | 2411 | if (option_index < 0) { |
2246e99d FD |
2412 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2413 | "Cannot find variant field class's option: " | |
3adcb386 FD |
2414 | "msg-it-addr=%p, var-fc-addr=%p, u-tag=%" PRIu64 ", " |
2415 | "i-tag=%" PRId64, msg_it, var_fc, tag.u, tag.i); | |
2246e99d | 2416 | ret_fc = NULL; |
e98a2d6e PP |
2417 | goto end; |
2418 | } | |
2419 | ||
5cd6d0e5 PP |
2420 | selected_option = ctf_field_class_variant_borrow_option_by_index( |
2421 | var_fc, (uint64_t) option_index); | |
e98a2d6e | 2422 | |
3adcb386 FD |
2423 | if (selected_option->fc->in_ir && !msg_it->dry_run) { |
2424 | bt_field *var_field = stack_top(msg_it->stack)->base; | |
1556a1af | 2425 | |
45c51519 | 2426 | ret = bt_field_variant_select_option_field_by_index( |
e5be10ef | 2427 | var_field, option_index); |
e22b45d0 | 2428 | if (ret) { |
2246e99d FD |
2429 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2430 | "Cannot select variant field's option field: " | |
3adcb386 FD |
2431 | "msg-it-addr=%p, var-field-addr=%p, " |
2432 | "opt-index=%" PRId64, msg_it, var_field, | |
44c440bc | 2433 | option_index); |
2246e99d | 2434 | ret_fc = NULL; |
1556a1af JG |
2435 | goto end; |
2436 | } | |
af87daef PP |
2437 | } |
2438 | ||
5cd6d0e5 | 2439 | ret_fc = selected_option->fc; |
e22b45d0 | 2440 | |
af87daef | 2441 | end: |
5cd6d0e5 | 2442 | return ret_fc; |
44c440bc PP |
2443 | } |
2444 | ||
f42867e2 | 2445 | static |
18a1979b | 2446 | bt_message *create_msg_stream_beginning(struct ctf_msg_iter *msg_it) |
f42867e2 | 2447 | { |
3adcb386 | 2448 | bt_self_component *self_comp = msg_it->self_comp; |
308adb47 | 2449 | bt_message *msg; |
f42867e2 | 2450 | |
3adcb386 | 2451 | BT_ASSERT(msg_it->stream); |
e5d25da2 SM |
2452 | BT_ASSERT(msg_it->self_msg_iter); |
2453 | msg = bt_message_stream_beginning_create(msg_it->self_msg_iter, | |
3adcb386 | 2454 | msg_it->stream); |
308adb47 | 2455 | if (!msg) { |
2246e99d FD |
2456 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2457 | "Cannot create stream beginning message: " | |
3adcb386 FD |
2458 | "msg-it-addr=%p, stream-addr=%p", |
2459 | msg_it, msg_it->stream); | |
f42867e2 PP |
2460 | } |
2461 | ||
308adb47 | 2462 | return msg; |
f42867e2 PP |
2463 | } |
2464 | ||
fc917f65 | 2465 | static |
18a1979b | 2466 | bt_message *create_msg_stream_end(struct ctf_msg_iter *msg_it) |
f42867e2 | 2467 | { |
3adcb386 | 2468 | bt_self_component *self_comp = msg_it->self_comp; |
308adb47 | 2469 | bt_message *msg; |
f42867e2 | 2470 | |
3adcb386 | 2471 | if (!msg_it->stream) { |
2246e99d FD |
2472 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2473 | "Cannot create stream end message because stream is NULL: " | |
3adcb386 | 2474 | "msg-it-addr=%p", msg_it); |
308adb47 FD |
2475 | msg = NULL; |
2476 | goto end; | |
f42867e2 PP |
2477 | } |
2478 | ||
e5d25da2 SM |
2479 | BT_ASSERT(msg_it->self_msg_iter); |
2480 | msg = bt_message_stream_end_create(msg_it->self_msg_iter, | |
3adcb386 | 2481 | msg_it->stream); |
308adb47 | 2482 | if (!msg) { |
2246e99d FD |
2483 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2484 | "Cannot create stream end message: " | |
3adcb386 FD |
2485 | "msg-it-addr=%p, stream-addr=%p", |
2486 | msg_it, msg_it->stream); | |
f42867e2 | 2487 | } |
fc917f65 | 2488 | |
308adb47 FD |
2489 | end: |
2490 | return msg; | |
f42867e2 PP |
2491 | } |
2492 | ||
78586d8a | 2493 | static |
18a1979b | 2494 | bt_message *create_msg_packet_beginning(struct ctf_msg_iter *msg_it, |
308adb47 | 2495 | bool use_default_cs) |
e98a2d6e | 2496 | { |
3adcb386 | 2497 | bt_self_component *self_comp = msg_it->self_comp; |
308adb47 | 2498 | bt_message *msg; |
3adcb386 | 2499 | const bt_stream_class *sc = msg_it->meta.sc->ir_sc; |
e98a2d6e | 2500 | |
3adcb386 | 2501 | BT_ASSERT(msg_it->packet); |
44c440bc | 2502 | BT_ASSERT(sc); |
e5d25da2 | 2503 | BT_ASSERT(msg_it->self_msg_iter); |
a6d85d2f | 2504 | |
3adcb386 FD |
2505 | if (msg_it->meta.sc->packets_have_ts_begin) { |
2506 | BT_ASSERT(msg_it->snapshots.beginning_clock != UINT64_C(-1)); | |
1eb28907 FD |
2507 | uint64_t raw_cs_value; |
2508 | ||
2509 | /* | |
2510 | * Either use the decoded packet `timestamp_begin` field or the | |
2511 | * current stream's default clock_snapshot. | |
2512 | */ | |
2513 | if (use_default_cs) { | |
3adcb386 | 2514 | raw_cs_value = msg_it->default_clock_snapshot; |
1eb28907 | 2515 | } else { |
3adcb386 | 2516 | raw_cs_value = msg_it->snapshots.beginning_clock; |
1eb28907 FD |
2517 | } |
2518 | ||
a33f7c34 | 2519 | msg = bt_message_packet_beginning_create_with_default_clock_snapshot( |
e5d25da2 | 2520 | msg_it->self_msg_iter, msg_it->packet, |
1eb28907 | 2521 | raw_cs_value); |
a33f7c34 | 2522 | } else { |
e5d25da2 | 2523 | msg = bt_message_packet_beginning_create(msg_it->self_msg_iter, |
3adcb386 | 2524 | msg_it->packet); |
a6d85d2f PP |
2525 | } |
2526 | ||
d6e69534 | 2527 | if (!msg) { |
2246e99d FD |
2528 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2529 | "Cannot create packet beginning message: " | |
3adcb386 FD |
2530 | "msg-it-addr=%p, packet-addr=%p", |
2531 | msg_it, msg_it->packet); | |
e22b45d0 | 2532 | goto end; |
78586d8a | 2533 | } |
312c056a | 2534 | |
e22b45d0 | 2535 | end: |
308adb47 | 2536 | return msg; |
e98a2d6e PP |
2537 | } |
2538 | ||
1eb28907 | 2539 | static |
18a1979b | 2540 | bt_message *emit_delayed_packet_beg_msg(struct ctf_msg_iter *msg_it) |
1eb28907 FD |
2541 | { |
2542 | bool packet_beg_ts_need_fix_up; | |
2543 | ||
3adcb386 | 2544 | msg_it->emit_delayed_packet_beginning_msg = false; |
1eb28907 FD |
2545 | |
2546 | /* | |
2547 | * Only fix the packet's timestamp_begin if it's larger than the first | |
2548 | * event of the packet. If there was no event in the packet, the | |
2549 | * `default_clock_snapshot` field will be either equal or greater than | |
2550 | * `snapshots.beginning_clock` so there is not fix needed. | |
2551 | */ | |
2552 | packet_beg_ts_need_fix_up = | |
3adcb386 | 2553 | msg_it->default_clock_snapshot < msg_it->snapshots.beginning_clock; |
1eb28907 FD |
2554 | |
2555 | /* create_msg_packet_beginning() logs errors */ | |
3adcb386 | 2556 | return create_msg_packet_beginning(msg_it, packet_beg_ts_need_fix_up); |
1eb28907 FD |
2557 | } |
2558 | ||
2559 | ||
78586d8a | 2560 | static |
18a1979b | 2561 | bt_message *create_msg_packet_end(struct ctf_msg_iter *msg_it) |
e98a2d6e | 2562 | { |
d6e69534 | 2563 | bt_message *msg; |
5c2e8153 | 2564 | bool update_default_cs = true; |
3adcb386 | 2565 | bt_self_component *self_comp = msg_it->self_comp; |
e98a2d6e | 2566 | |
3adcb386 | 2567 | if (!msg_it->packet) { |
308adb47 FD |
2568 | msg = NULL; |
2569 | goto end; | |
e98a2d6e PP |
2570 | } |
2571 | ||
1eb28907 FD |
2572 | /* |
2573 | * Check if we need to emit the delayed packet | |
2574 | * beginning message instead of the packet end message. | |
2575 | */ | |
3adcb386 FD |
2576 | if (G_UNLIKELY(msg_it->emit_delayed_packet_beginning_msg)) { |
2577 | msg = emit_delayed_packet_beg_msg(msg_it); | |
1eb28907 | 2578 | /* Don't forget to emit the packet end message. */ |
3adcb386 | 2579 | msg_it->state = STATE_EMIT_QUEUED_MSG_PACKET_END; |
308adb47 | 2580 | goto end; |
1eb28907 FD |
2581 | } |
2582 | ||
5c2e8153 | 2583 | /* Check if may be affected by lttng-crash timestamp_end quirk. */ |
3adcb386 | 2584 | if (G_UNLIKELY(msg_it->meta.tc->quirks.lttng_crash)) { |
5c2e8153 FD |
2585 | /* |
2586 | * Check if the `timestamp_begin` field is non-zero but | |
2587 | * `timestamp_end` is zero. It means the trace is affected by | |
2588 | * the lttng-crash packet `timestamp_end` quirk and must be | |
2589 | * fixed up by omitting to update the default clock snapshot to | |
2590 | * the `timestamp_end` as is typically done. | |
2591 | */ | |
3adcb386 FD |
2592 | if (msg_it->snapshots.beginning_clock != 0 && |
2593 | msg_it->snapshots.end_clock == 0) { | |
5c2e8153 FD |
2594 | update_default_cs = false; |
2595 | } | |
2596 | } | |
2597 | ||
7d1ac606 FD |
2598 | /* |
2599 | * Check if may be affected by lttng event-after-packet `timestamp_end` | |
2600 | * quirk. | |
2601 | */ | |
3adcb386 | 2602 | if (msg_it->meta.tc->quirks.lttng_event_after_packet) { |
7d1ac606 FD |
2603 | /* |
2604 | * Check if `timestamp_end` is smaller then the current | |
2605 | * default_clock_snapshot (which is set to the last event | |
2606 | * decoded). It means the trace is affected by the lttng | |
2607 | * `event-after-packet` packet `timestamp_end` quirk and must | |
2608 | * be fixed up by omitting to update the default clock snapshot | |
2609 | * to the `timestamp_end` as is typically done. | |
2610 | */ | |
3adcb386 | 2611 | if (msg_it->snapshots.end_clock < msg_it->default_clock_snapshot) { |
7d1ac606 FD |
2612 | update_default_cs = false; |
2613 | } | |
2614 | } | |
2615 | ||
5c2e8153 | 2616 | /* Update default clock from packet's end time. */ |
3adcb386 FD |
2617 | if (msg_it->snapshots.end_clock != UINT64_C(-1) && update_default_cs) { |
2618 | msg_it->default_clock_snapshot = msg_it->snapshots.end_clock; | |
44c440bc PP |
2619 | } |
2620 | ||
e5d25da2 | 2621 | BT_ASSERT(msg_it->self_msg_iter); |
a6d85d2f | 2622 | |
3adcb386 FD |
2623 | if (msg_it->meta.sc->packets_have_ts_end) { |
2624 | BT_ASSERT(msg_it->snapshots.end_clock != UINT64_C(-1)); | |
a6d85d2f | 2625 | msg = bt_message_packet_end_create_with_default_clock_snapshot( |
e5d25da2 | 2626 | msg_it->self_msg_iter, msg_it->packet, |
3adcb386 | 2627 | msg_it->default_clock_snapshot); |
a33f7c34 | 2628 | } else { |
e5d25da2 | 2629 | msg = bt_message_packet_end_create(msg_it->self_msg_iter, |
3adcb386 | 2630 | msg_it->packet); |
a6d85d2f PP |
2631 | } |
2632 | ||
d6e69534 | 2633 | if (!msg) { |
2246e99d FD |
2634 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2635 | "Cannot create packet end message: " | |
3adcb386 FD |
2636 | "msg-it-addr=%p, packet-addr=%p", |
2637 | msg_it, msg_it->packet); | |
308adb47 | 2638 | goto end; |
ccf82993 | 2639 | |
78586d8a | 2640 | } |
e98a2d6e | 2641 | |
3adcb386 | 2642 | BT_PACKET_PUT_REF_AND_RESET(msg_it->packet); |
308adb47 FD |
2643 | |
2644 | end: | |
2645 | return msg; | |
e98a2d6e PP |
2646 | } |
2647 | ||
495490c5 | 2648 | static |
18a1979b | 2649 | bt_message *create_msg_discarded_events(struct ctf_msg_iter *msg_it) |
495490c5 PP |
2650 | { |
2651 | bt_message *msg; | |
3adcb386 | 2652 | bt_self_component *self_comp = msg_it->self_comp; |
495490c5 PP |
2653 | uint64_t beginning_raw_value = UINT64_C(-1); |
2654 | uint64_t end_raw_value = UINT64_C(-1); | |
495490c5 | 2655 | |
e5d25da2 | 2656 | BT_ASSERT(msg_it->self_msg_iter); |
3adcb386 FD |
2657 | BT_ASSERT(msg_it->stream); |
2658 | BT_ASSERT(msg_it->meta.sc->has_discarded_events); | |
495490c5 | 2659 | |
3adcb386 FD |
2660 | if (msg_it->meta.sc->discarded_events_have_default_cs) { |
2661 | if (msg_it->prev_packet_snapshots.discarded_events == UINT64_C(-1)) { | |
afd45274 PP |
2662 | /* |
2663 | * We discarded events, but before (and possibly | |
2664 | * including) the current packet: use this packet's time | |
2665 | * range, and do not have a specific count. | |
2666 | */ | |
3adcb386 FD |
2667 | beginning_raw_value = msg_it->snapshots.beginning_clock; |
2668 | end_raw_value = msg_it->snapshots.end_clock; | |
afd45274 | 2669 | } else { |
3adcb386 FD |
2670 | beginning_raw_value = msg_it->prev_packet_snapshots.end_clock; |
2671 | end_raw_value = msg_it->snapshots.end_clock; | |
afd45274 | 2672 | } |
495490c5 | 2673 | |
afd45274 PP |
2674 | BT_ASSERT(beginning_raw_value != UINT64_C(-1)); |
2675 | BT_ASSERT(end_raw_value != UINT64_C(-1)); | |
495490c5 | 2676 | msg = bt_message_discarded_events_create_with_default_clock_snapshots( |
e5d25da2 | 2677 | msg_it->self_msg_iter, msg_it->stream, beginning_raw_value, |
495490c5 PP |
2678 | end_raw_value); |
2679 | } else { | |
e5d25da2 | 2680 | msg = bt_message_discarded_events_create(msg_it->self_msg_iter, |
3adcb386 | 2681 | msg_it->stream); |
495490c5 PP |
2682 | } |
2683 | ||
2684 | if (!msg) { | |
2246e99d FD |
2685 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2686 | "Cannot create discarded events message: " | |
3adcb386 FD |
2687 | "msg-it-addr=%p, stream-addr=%p", |
2688 | msg_it, msg_it->stream); | |
308adb47 | 2689 | goto end; |
495490c5 PP |
2690 | } |
2691 | ||
3adcb386 | 2692 | if (msg_it->prev_packet_snapshots.discarded_events != UINT64_C(-1)) { |
afd45274 | 2693 | bt_message_discarded_events_set_count(msg, |
3adcb386 FD |
2694 | msg_it->snapshots.discarded_events - |
2695 | msg_it->prev_packet_snapshots.discarded_events); | |
495490c5 PP |
2696 | } |
2697 | ||
308adb47 FD |
2698 | end: |
2699 | return msg; | |
495490c5 PP |
2700 | } |
2701 | ||
2702 | static | |
18a1979b | 2703 | bt_message *create_msg_discarded_packets(struct ctf_msg_iter *msg_it) |
495490c5 PP |
2704 | { |
2705 | bt_message *msg; | |
3adcb386 | 2706 | bt_self_component *self_comp = msg_it->self_comp; |
495490c5 | 2707 | |
e5d25da2 | 2708 | BT_ASSERT(msg_it->self_msg_iter); |
3adcb386 FD |
2709 | BT_ASSERT(msg_it->stream); |
2710 | BT_ASSERT(msg_it->meta.sc->has_discarded_packets); | |
2711 | BT_ASSERT(msg_it->prev_packet_snapshots.packets != | |
495490c5 PP |
2712 | UINT64_C(-1)); |
2713 | ||
3adcb386 FD |
2714 | if (msg_it->meta.sc->discarded_packets_have_default_cs) { |
2715 | BT_ASSERT(msg_it->prev_packet_snapshots.end_clock != UINT64_C(-1)); | |
2716 | BT_ASSERT(msg_it->snapshots.beginning_clock != UINT64_C(-1)); | |
495490c5 | 2717 | msg = bt_message_discarded_packets_create_with_default_clock_snapshots( |
e5d25da2 | 2718 | msg_it->self_msg_iter, msg_it->stream, |
3adcb386 FD |
2719 | msg_it->prev_packet_snapshots.end_clock, |
2720 | msg_it->snapshots.beginning_clock); | |
495490c5 | 2721 | } else { |
e5d25da2 | 2722 | msg = bt_message_discarded_packets_create(msg_it->self_msg_iter, |
3adcb386 | 2723 | msg_it->stream); |
495490c5 PP |
2724 | } |
2725 | ||
2726 | if (!msg) { | |
2246e99d FD |
2727 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2728 | "Cannot create discarded packets message: " | |
3adcb386 FD |
2729 | "msg-it-addr=%p, stream-addr=%p", |
2730 | msg_it, msg_it->stream); | |
308adb47 | 2731 | goto end; |
495490c5 PP |
2732 | } |
2733 | ||
2734 | bt_message_discarded_packets_set_count(msg, | |
3adcb386 FD |
2735 | msg_it->snapshots.packets - |
2736 | msg_it->prev_packet_snapshots.packets - 1); | |
308adb47 FD |
2737 | |
2738 | end: | |
2739 | return msg; | |
495490c5 PP |
2740 | } |
2741 | ||
c44c3e70 | 2742 | BT_HIDDEN |
851de941 SM |
2743 | struct ctf_msg_iter *ctf_msg_iter_create( |
2744 | struct ctf_trace_class *tc, | |
e98a2d6e | 2745 | size_t max_request_sz, |
18a1979b | 2746 | struct ctf_msg_iter_medium_ops medops, void *data, |
851de941 SM |
2747 | bt_logging_level log_level, |
2748 | bt_self_component *self_comp, | |
2749 | bt_self_message_iterator *self_msg_iter) | |
e98a2d6e | 2750 | { |
18a1979b | 2751 | struct ctf_msg_iter *msg_it = NULL; |
5cd6d0e5 PP |
2752 | struct bt_bfcr_cbs cbs = { |
2753 | .classes = { | |
2754 | .signed_int = bfcr_signed_int_cb, | |
2755 | .unsigned_int = bfcr_unsigned_int_cb, | |
2756 | .floating_point = bfcr_floating_point_cb, | |
2757 | .string_begin = bfcr_string_begin_cb, | |
2758 | .string = bfcr_string_cb, | |
2759 | .string_end = bfcr_string_end_cb, | |
2760 | .compound_begin = bfcr_compound_begin_cb, | |
2761 | .compound_end = bfcr_compound_end_cb, | |
e98a2d6e PP |
2762 | }, |
2763 | .query = { | |
5cd6d0e5 PP |
2764 | .get_sequence_length = bfcr_get_sequence_length_cb, |
2765 | .borrow_variant_selected_field_class = bfcr_borrow_variant_selected_field_class_cb, | |
e98a2d6e PP |
2766 | }, |
2767 | }; | |
2768 | ||
44c440bc | 2769 | BT_ASSERT(tc); |
f6ccaed9 | 2770 | BT_ASSERT(medops.request_bytes); |
312c056a | 2771 | BT_ASSERT(medops.borrow_stream); |
c9694de4 SM |
2772 | BT_ASSERT(max_request_sz > 0); |
2773 | ||
eb7f6c4f | 2774 | BT_COMP_LOG_CUR_LVL(BT_LOG_DEBUG, log_level, self_comp, |
ea14c7dd | 2775 | "Creating CTF plugin message iterator: " |
862ca4ed | 2776 | "trace-addr=%p, max-request-size=%zu, " |
ea14c7dd PP |
2777 | "data=%p, log-level=%s", tc, max_request_sz, data, |
2778 | bt_common_logging_level_string(log_level)); | |
18a1979b | 2779 | msg_it = g_new0(struct ctf_msg_iter, 1); |
3adcb386 | 2780 | if (!msg_it) { |
eb7f6c4f | 2781 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_comp, |
ea14c7dd | 2782 | "Failed to allocate one CTF plugin message iterator."); |
e98a2d6e PP |
2783 | goto end; |
2784 | } | |
3adcb386 | 2785 | msg_it->self_comp = self_comp; |
851de941 | 2786 | msg_it->self_msg_iter = self_msg_iter; |
3adcb386 FD |
2787 | msg_it->log_level = log_level; |
2788 | msg_it->meta.tc = tc; | |
2789 | msg_it->medium.medops = medops; | |
2790 | msg_it->medium.max_request_sz = max_request_sz; | |
2791 | msg_it->medium.data = data; | |
2792 | msg_it->stack = stack_new(msg_it); | |
2793 | msg_it->stored_values = g_array_new(FALSE, TRUE, sizeof(uint64_t)); | |
2794 | g_array_set_size(msg_it->stored_values, tc->stored_value_count); | |
2795 | ||
2796 | if (!msg_it->stack) { | |
2246e99d FD |
2797 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2798 | "Failed to create field stack."); | |
c44c3e70 | 2799 | goto error; |
e98a2d6e PP |
2800 | } |
2801 | ||
3adcb386 FD |
2802 | msg_it->bfcr = bt_bfcr_create(cbs, msg_it, log_level, NULL); |
2803 | if (!msg_it->bfcr) { | |
2246e99d FD |
2804 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
2805 | "Failed to create binary class reader (BFCR)."); | |
c44c3e70 | 2806 | goto error; |
e98a2d6e PP |
2807 | } |
2808 | ||
18a1979b | 2809 | ctf_msg_iter_reset(msg_it); |
eb7f6c4f | 2810 | BT_COMP_LOGD("Created CTF plugin message iterator: " |
862ca4ed | 2811 | "trace-addr=%p, max-request-size=%zu, " |
3adcb386 FD |
2812 | "data=%p, msg-it-addr=%p, log-level=%s", |
2813 | tc, max_request_sz, data, msg_it, | |
ea14c7dd | 2814 | bt_common_logging_level_string(log_level)); |
3adcb386 | 2815 | msg_it->cur_packet_offset = 0; |
fdf0e7a0 | 2816 | |
e98a2d6e | 2817 | end: |
3adcb386 | 2818 | return msg_it; |
fdf0e7a0 | 2819 | |
c44c3e70 | 2820 | error: |
18a1979b | 2821 | ctf_msg_iter_destroy(msg_it); |
3adcb386 | 2822 | msg_it = NULL; |
c44c3e70 | 2823 | goto end; |
e98a2d6e PP |
2824 | } |
2825 | ||
18a1979b | 2826 | void ctf_msg_iter_destroy(struct ctf_msg_iter *msg_it) |
e98a2d6e | 2827 | { |
3adcb386 FD |
2828 | BT_PACKET_PUT_REF_AND_RESET(msg_it->packet); |
2829 | BT_STREAM_PUT_REF_AND_RESET(msg_it->stream); | |
2830 | release_all_dscopes(msg_it); | |
e98a2d6e | 2831 | |
3adcb386 | 2832 | BT_COMP_LOGD("Destroying CTF plugin message iterator: addr=%p", msg_it); |
fdf0e7a0 | 2833 | |
3adcb386 | 2834 | if (msg_it->stack) { |
eb7f6c4f | 2835 | BT_COMP_LOGD_STR("Destroying field stack."); |
3adcb386 | 2836 | stack_destroy(msg_it->stack); |
e98a2d6e PP |
2837 | } |
2838 | ||
3adcb386 FD |
2839 | if (msg_it->bfcr) { |
2840 | BT_COMP_LOGD("Destroying BFCR: bfcr-addr=%p", msg_it->bfcr); | |
2841 | bt_bfcr_destroy(msg_it->bfcr); | |
e98a2d6e PP |
2842 | } |
2843 | ||
3adcb386 FD |
2844 | if (msg_it->stored_values) { |
2845 | g_array_free(msg_it->stored_values, TRUE); | |
5f870343 | 2846 | } |
fdf0e7a0 | 2847 | |
3adcb386 | 2848 | g_free(msg_it); |
e98a2d6e PP |
2849 | } |
2850 | ||
18a1979b SM |
2851 | enum ctf_msg_iter_status ctf_msg_iter_get_next_message( |
2852 | struct ctf_msg_iter *msg_it, | |
cad707e2 | 2853 | const bt_message **message) |
e98a2d6e | 2854 | { |
18a1979b | 2855 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 2856 | bt_self_component *self_comp = msg_it->self_comp; |
e98a2d6e | 2857 | |
3adcb386 | 2858 | BT_ASSERT_DBG(msg_it); |
98b15851 | 2859 | BT_ASSERT_DBG(message); |
3adcb386 | 2860 | BT_COMP_LOGD("Getting next message: msg-it-addr=%p", msg_it); |
fdf0e7a0 | 2861 | |
e98a2d6e | 2862 | while (true) { |
3adcb386 | 2863 | status = handle_state(msg_it); |
18a1979b SM |
2864 | if (G_UNLIKELY(status == CTF_MSG_ITER_STATUS_AGAIN)) { |
2865 | BT_COMP_LOGD_STR("Medium returned CTF_MSG_ITER_STATUS_AGAIN."); | |
7cdc2bab | 2866 | goto end; |
18a1979b | 2867 | } else if (G_UNLIKELY(status != CTF_MSG_ITER_STATUS_OK)) { |
2246e99d | 2868 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
3adcb386 FD |
2869 | "Cannot handle state: msg-it-addr=%p, state=%s", |
2870 | msg_it, state_string(msg_it->state)); | |
e98a2d6e PP |
2871 | goto end; |
2872 | } | |
2873 | ||
3adcb386 | 2874 | switch (msg_it->state) { |
fc917f65 | 2875 | case STATE_EMIT_MSG_EVENT: |
3adcb386 | 2876 | BT_ASSERT_DBG(msg_it->event_msg); |
1eb28907 FD |
2877 | |
2878 | /* | |
2879 | * Check if we need to emit the delayed packet | |
2880 | * beginning message instead of the event message. | |
2881 | */ | |
3adcb386 FD |
2882 | if (G_UNLIKELY(msg_it->emit_delayed_packet_beginning_msg)) { |
2883 | *message = emit_delayed_packet_beg_msg(msg_it); | |
1eb28907 | 2884 | if (!*message) { |
18a1979b | 2885 | status = CTF_MSG_ITER_STATUS_ERROR; |
1eb28907 FD |
2886 | } |
2887 | ||
2888 | /* | |
2889 | * Don't forget to emit the event message of | |
2890 | * the event record that was just decoded. | |
2891 | */ | |
3adcb386 | 2892 | msg_it->state = STATE_EMIT_QUEUED_MSG_EVENT; |
1eb28907 FD |
2893 | |
2894 | } else { | |
3adcb386 FD |
2895 | *message = msg_it->event_msg; |
2896 | msg_it->event_msg = NULL; | |
1eb28907 | 2897 | } |
495490c5 PP |
2898 | goto end; |
2899 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
2900 | /* create_msg_discared_events() logs errors */ | |
3adcb386 | 2901 | *message = create_msg_discarded_events(msg_it); |
495490c5 PP |
2902 | |
2903 | if (!*message) { | |
18a1979b | 2904 | status = CTF_MSG_ITER_STATUS_ERROR; |
495490c5 PP |
2905 | } |
2906 | ||
2907 | goto end; | |
2908 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
2909 | /* create_msg_discared_packets() logs errors */ | |
3adcb386 | 2910 | *message = create_msg_discarded_packets(msg_it); |
495490c5 PP |
2911 | |
2912 | if (!*message) { | |
18a1979b | 2913 | status = CTF_MSG_ITER_STATUS_ERROR; |
495490c5 PP |
2914 | } |
2915 | ||
fc917f65 PP |
2916 | goto end; |
2917 | case STATE_EMIT_MSG_PACKET_BEGINNING: | |
3adcb386 FD |
2918 | if (G_UNLIKELY(msg_it->meta.tc->quirks.barectf_event_before_packet)) { |
2919 | msg_it->emit_delayed_packet_beginning_msg = true; | |
1eb28907 FD |
2920 | /* |
2921 | * There is no message to return yet as this | |
2922 | * packet beginning message is delayed until we | |
2923 | * decode the first event message of the | |
2924 | * packet. | |
2925 | */ | |
2926 | break; | |
2927 | } else { | |
2928 | /* create_msg_packet_beginning() logs errors */ | |
3adcb386 | 2929 | *message = create_msg_packet_beginning(msg_it, false); |
1eb28907 | 2930 | if (!*message) { |
18a1979b | 2931 | status = CTF_MSG_ITER_STATUS_ERROR; |
1eb28907 | 2932 | } |
f42867e2 | 2933 | } |
44c440bc | 2934 | |
f42867e2 | 2935 | goto end; |
fc917f65 PP |
2936 | case STATE_EMIT_MSG_PACKET_END_SINGLE: |
2937 | case STATE_EMIT_MSG_PACKET_END_MULTI: | |
2938 | /* create_msg_packet_end() logs errors */ | |
3adcb386 | 2939 | *message = create_msg_packet_end(msg_it); |
44c440bc | 2940 | |
d6e69534 | 2941 | if (!*message) { |
18a1979b | 2942 | status = CTF_MSG_ITER_STATUS_ERROR; |
e98a2d6e | 2943 | } |
312c056a | 2944 | |
495490c5 | 2945 | goto end; |
fc917f65 | 2946 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
495490c5 | 2947 | /* create_msg_stream_beginning() logs errors */ |
3adcb386 | 2948 | *message = create_msg_stream_beginning(msg_it); |
bc0ae364 | 2949 | msg_it->emit_stream_beginning_message = false; |
fc917f65 | 2950 | |
495490c5 | 2951 | if (!*message) { |
18a1979b | 2952 | status = CTF_MSG_ITER_STATUS_ERROR; |
fc917f65 PP |
2953 | } |
2954 | ||
495490c5 | 2955 | goto end; |
fc917f65 | 2956 | case STATE_EMIT_MSG_STREAM_END: |
495490c5 | 2957 | /* create_msg_stream_end() logs errors */ |
3adcb386 | 2958 | *message = create_msg_stream_end(msg_it); |
fc917f65 | 2959 | |
495490c5 | 2960 | if (!*message) { |
18a1979b | 2961 | status = CTF_MSG_ITER_STATUS_ERROR; |
fc917f65 PP |
2962 | } |
2963 | ||
495490c5 | 2964 | goto end; |
fc917f65 | 2965 | case STATE_DONE: |
18a1979b | 2966 | status = CTF_MSG_ITER_STATUS_EOF; |
e98a2d6e PP |
2967 | goto end; |
2968 | default: | |
2969 | /* Non-emitting state: continue */ | |
2970 | break; | |
2971 | } | |
2972 | } | |
2973 | ||
2974 | end: | |
2975 | return status; | |
2976 | } | |
87187cbf | 2977 | |
41693723 | 2978 | static |
18a1979b | 2979 | enum ctf_msg_iter_status decode_until_state( struct ctf_msg_iter *msg_it, |
27f26617 | 2980 | enum state target_state_1, enum state target_state_2) |
87187cbf | 2981 | { |
18a1979b | 2982 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3adcb386 | 2983 | bt_self_component *self_comp = msg_it->self_comp; |
87187cbf | 2984 | |
3adcb386 | 2985 | BT_ASSERT_DBG(msg_it); |
87187cbf | 2986 | |
3682dd06 FD |
2987 | do { |
2988 | /* | |
2989 | * Check if we reached the state at which we want to stop | |
2990 | * decoding. | |
2991 | */ | |
3adcb386 FD |
2992 | if (msg_it->state == target_state_1 || |
2993 | msg_it->state == target_state_2) { | |
3682dd06 FD |
2994 | goto end; |
2995 | } | |
87187cbf | 2996 | |
3adcb386 | 2997 | status = handle_state(msg_it); |
18a1979b SM |
2998 | if (G_UNLIKELY(status == CTF_MSG_ITER_STATUS_AGAIN)) { |
2999 | BT_COMP_LOGD_STR("Medium returned CTF_MSG_ITER_STATUS_AGAIN."); | |
87187cbf | 3000 | goto end; |
18a1979b | 3001 | } else if (G_UNLIKELY(status != CTF_MSG_ITER_STATUS_OK)) { |
2246e99d | 3002 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
3adcb386 FD |
3003 | "Cannot handle state: msg-it-addr=%p, state=%s", |
3004 | msg_it, state_string(msg_it->state)); | |
87187cbf PP |
3005 | goto end; |
3006 | } | |
3007 | ||
3adcb386 | 3008 | switch (msg_it->state) { |
87187cbf | 3009 | case STATE_INIT: |
44269abb | 3010 | case STATE_SWITCH_PACKET: |
87187cbf PP |
3011 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: |
3012 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
3013 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
3014 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
3015 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
3016 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
fc917f65 | 3017 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
495490c5 PP |
3018 | case STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS: |
3019 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
3020 | case STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS: | |
3021 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
3682dd06 FD |
3022 | case STATE_EMIT_MSG_PACKET_BEGINNING: |
3023 | case STATE_DSCOPE_EVENT_HEADER_BEGIN: | |
3024 | case STATE_DSCOPE_EVENT_HEADER_CONTINUE: | |
3025 | case STATE_AFTER_EVENT_HEADER: | |
3026 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN: | |
3027 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE: | |
3028 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN: | |
3029 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE: | |
3030 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
3031 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
3032 | case STATE_EMIT_MSG_EVENT: | |
1eb28907 | 3033 | case STATE_EMIT_QUEUED_MSG_EVENT: |
3682dd06 FD |
3034 | case STATE_SKIP_PACKET_PADDING: |
3035 | case STATE_EMIT_MSG_PACKET_END_MULTI: | |
3036 | case STATE_EMIT_MSG_PACKET_END_SINGLE: | |
1eb28907 | 3037 | case STATE_EMIT_QUEUED_MSG_PACKET_END: |
3682dd06 | 3038 | case STATE_EMIT_MSG_STREAM_END: |
87187cbf | 3039 | break; |
3682dd06 FD |
3040 | case STATE_DONE: |
3041 | /* fall-through */ | |
87187cbf | 3042 | default: |
3682dd06 | 3043 | /* We should never get to the STATE_DONE state. */ |
3adcb386 FD |
3044 | BT_COMP_LOGF("Unexpected state: msg-it-addr=%p, state=%s", |
3045 | msg_it, state_string(msg_it->state)); | |
498e7994 | 3046 | bt_common_abort(); |
87187cbf | 3047 | } |
3682dd06 | 3048 | } while (true); |
87187cbf | 3049 | |
41693723 | 3050 | end: |
3682dd06 FD |
3051 | return status; |
3052 | } | |
3053 | ||
3054 | static | |
18a1979b SM |
3055 | enum ctf_msg_iter_status read_packet_header_context_fields( |
3056 | struct ctf_msg_iter *msg_it) | |
3682dd06 FD |
3057 | { |
3058 | int ret; | |
18a1979b | 3059 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
3682dd06 | 3060 | |
3adcb386 | 3061 | status = decode_until_state(msg_it, STATE_EMIT_MSG_PACKET_BEGINNING, -1); |
18a1979b | 3062 | if (status != CTF_MSG_ITER_STATUS_OK) { |
3682dd06 FD |
3063 | goto end; |
3064 | } | |
3065 | ||
3adcb386 | 3066 | ret = set_current_packet_content_sizes(msg_it); |
312c056a | 3067 | if (ret) { |
18a1979b | 3068 | status = CTF_MSG_ITER_STATUS_ERROR; |
3682dd06 | 3069 | goto end; |
312c056a PP |
3070 | } |
3071 | ||
3682dd06 | 3072 | end: |
87187cbf PP |
3073 | return status; |
3074 | } | |
6de92955 | 3075 | |
9e0c8dbb | 3076 | BT_HIDDEN |
18a1979b | 3077 | enum ctf_msg_iter_status ctf_msg_iter_seek(struct ctf_msg_iter *msg_it, |
fc917f65 | 3078 | off_t offset) |
9e0c8dbb | 3079 | { |
18a1979b | 3080 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
18a1979b | 3081 | enum ctf_msg_iter_medium_status medium_status; |
9e0c8dbb | 3082 | |
3adcb386 | 3083 | BT_ASSERT(msg_it); |
30174f59 | 3084 | BT_ASSERT(offset >= 0); |
026f1a5a | 3085 | BT_ASSERT(msg_it->medium.medops.seek); |
9e0c8dbb | 3086 | |
701a0903 | 3087 | medium_status = msg_it->medium.medops.seek(offset, msg_it->medium.data); |
18a1979b SM |
3088 | if (medium_status != CTF_MSG_ITER_MEDIUM_STATUS_OK) { |
3089 | if (medium_status == CTF_MSG_ITER_MEDIUM_STATUS_EOF) { | |
3090 | status = CTF_MSG_ITER_STATUS_EOF; | |
9e0c8dbb | 3091 | } else { |
18a1979b | 3092 | status = CTF_MSG_ITER_STATUS_ERROR; |
9e0c8dbb JG |
3093 | goto end; |
3094 | } | |
3095 | } | |
3096 | ||
18a1979b | 3097 | ctf_msg_iter_reset(msg_it); |
3adcb386 | 3098 | msg_it->cur_packet_offset = offset; |
44c440bc | 3099 | |
9e0c8dbb | 3100 | end: |
3a246966 | 3101 | return status; |
9e0c8dbb JG |
3102 | } |
3103 | ||
27f26617 | 3104 | static |
18a1979b SM |
3105 | enum ctf_msg_iter_status clock_snapshot_at_msg_iter_state( |
3106 | struct ctf_msg_iter *msg_it, enum state target_state_1, | |
27f26617 FD |
3107 | enum state target_state_2, uint64_t *clock_snapshot) |
3108 | { | |
18a1979b | 3109 | enum ctf_msg_iter_status status = CTF_MSG_ITER_STATUS_OK; |
27f26617 | 3110 | |
3adcb386 | 3111 | BT_ASSERT_DBG(msg_it); |
98b15851 | 3112 | BT_ASSERT_DBG(clock_snapshot); |
3adcb386 | 3113 | status = decode_until_state(msg_it, target_state_1, target_state_2); |
18a1979b | 3114 | if (status != CTF_MSG_ITER_STATUS_OK) { |
27f26617 FD |
3115 | goto end; |
3116 | } | |
3117 | ||
3adcb386 | 3118 | *clock_snapshot = msg_it->default_clock_snapshot; |
27f26617 FD |
3119 | end: |
3120 | return status; | |
3121 | } | |
3122 | ||
3123 | BT_HIDDEN | |
18a1979b SM |
3124 | enum ctf_msg_iter_status ctf_msg_iter_curr_packet_first_event_clock_snapshot( |
3125 | struct ctf_msg_iter *msg_it, uint64_t *first_clock_snapshot) | |
27f26617 | 3126 | { |
3adcb386 | 3127 | return clock_snapshot_at_msg_iter_state(msg_it, |
27f26617 FD |
3128 | STATE_AFTER_EVENT_HEADER, -1, first_clock_snapshot); |
3129 | } | |
3130 | ||
3131 | BT_HIDDEN | |
18a1979b SM |
3132 | enum ctf_msg_iter_status ctf_msg_iter_curr_packet_last_event_clock_snapshot( |
3133 | struct ctf_msg_iter *msg_it, uint64_t *last_clock_snapshot) | |
27f26617 | 3134 | { |
3adcb386 | 3135 | return clock_snapshot_at_msg_iter_state(msg_it, |
27f26617 FD |
3136 | STATE_EMIT_MSG_PACKET_END_SINGLE, |
3137 | STATE_EMIT_MSG_PACKET_END_MULTI, last_clock_snapshot); | |
3138 | } | |
3139 | ||
44c440bc | 3140 | BT_HIDDEN |
18a1979b SM |
3141 | enum ctf_msg_iter_status ctf_msg_iter_get_packet_properties( |
3142 | struct ctf_msg_iter *msg_it, | |
3143 | struct ctf_msg_iter_packet_properties *props) | |
44c440bc | 3144 | { |
18a1979b | 3145 | enum ctf_msg_iter_status status; |
41693723 | 3146 | |
3adcb386 | 3147 | BT_ASSERT_DBG(msg_it); |
98b15851 | 3148 | BT_ASSERT_DBG(props); |
3adcb386 | 3149 | status = read_packet_header_context_fields(msg_it); |
18a1979b | 3150 | if (status != CTF_MSG_ITER_STATUS_OK) { |
41693723 PP |
3151 | goto end; |
3152 | } | |
44c440bc | 3153 | |
3adcb386 FD |
3154 | props->exp_packet_total_size = msg_it->cur_exp_packet_total_size; |
3155 | props->exp_packet_content_size = msg_it->cur_exp_packet_content_size; | |
3156 | props->stream_class_id = (uint64_t) msg_it->cur_stream_class_id; | |
3157 | props->data_stream_id = msg_it->cur_data_stream_id; | |
3158 | props->snapshots.discarded_events = msg_it->snapshots.discarded_events; | |
3159 | props->snapshots.packets = msg_it->snapshots.packets; | |
3160 | props->snapshots.beginning_clock = msg_it->snapshots.beginning_clock; | |
3161 | props->snapshots.end_clock = msg_it->snapshots.end_clock; | |
41693723 PP |
3162 | |
3163 | end: | |
3164 | return status; | |
9e0c8dbb | 3165 | } |
fc917f65 | 3166 | |
de24a43f | 3167 | BT_HIDDEN |
18a1979b | 3168 | void ctf_msg_iter_set_dry_run(struct ctf_msg_iter *msg_it, |
de24a43f FD |
3169 | bool val) |
3170 | { | |
3adcb386 | 3171 | msg_it->dry_run = val; |
de24a43f | 3172 | } |