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 | ||
d6e69534 | 26 | #define BT_LOG_TAG "PLUGIN-CTF-MSG-ITER" |
fdf0e7a0 PP |
27 | #include "logging.h" |
28 | ||
e98a2d6e PP |
29 | #include <stdint.h> |
30 | #include <inttypes.h> | |
31 | #include <stdio.h> | |
32 | #include <stddef.h> | |
33 | #include <stdbool.h> | |
f6ccaed9 | 34 | #include <babeltrace/assert-internal.h> |
e98a2d6e | 35 | #include <string.h> |
9d408fca | 36 | #include <babeltrace/babeltrace.h> |
3dca2276 | 37 | #include <babeltrace/common-internal.h> |
e98a2d6e | 38 | #include <glib.h> |
0fbb9a9f | 39 | #include <stdlib.h> |
e98a2d6e | 40 | |
d6e69534 | 41 | #include "msg-iter.h" |
5cd6d0e5 | 42 | #include "../bfcr/bfcr.h" |
e98a2d6e | 43 | |
d6e69534 | 44 | struct bt_msg_iter; |
e98a2d6e PP |
45 | |
46 | /* A visit stack entry */ | |
47 | struct stack_entry { | |
48 | /* | |
49 | * Current base field, one of: | |
50 | * | |
51 | * * string | |
52 | * * structure | |
53 | * * array | |
54 | * * sequence | |
55 | * * variant | |
56 | * | |
312c056a | 57 | * Field is borrowed. |
e98a2d6e | 58 | */ |
b19ff26f | 59 | bt_field *base; |
e98a2d6e | 60 | |
44c440bc | 61 | /* Index of next field to set */ |
e98a2d6e PP |
62 | size_t index; |
63 | }; | |
64 | ||
65 | /* Visit stack */ | |
66 | struct stack { | |
afe86a06 PP |
67 | /* Entries (struct stack_entry) */ |
68 | GArray *entries; | |
69 | ||
70 | /* Number of active entries */ | |
71 | size_t size; | |
e98a2d6e PP |
72 | }; |
73 | ||
74 | /* State */ | |
75 | enum state { | |
76 | STATE_INIT, | |
77 | STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN, | |
78 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
79 | STATE_AFTER_TRACE_PACKET_HEADER, | |
80 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN, | |
81 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
82 | STATE_AFTER_STREAM_PACKET_CONTEXT, | |
495490c5 | 83 | STATE_CHECK_EMIT_MSG_STREAM_BEGINNING, |
fc917f65 PP |
84 | STATE_EMIT_MSG_STREAM_BEGINNING, |
85 | STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING, | |
495490c5 PP |
86 | STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS, |
87 | STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS, | |
88 | STATE_EMIT_MSG_DISCARDED_EVENTS, | |
89 | STATE_EMIT_MSG_DISCARDED_PACKETS, | |
fc917f65 | 90 | STATE_EMIT_MSG_PACKET_BEGINNING, |
44c440bc PP |
91 | STATE_DSCOPE_EVENT_HEADER_BEGIN, |
92 | STATE_DSCOPE_EVENT_HEADER_CONTINUE, | |
93 | STATE_AFTER_EVENT_HEADER, | |
94 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN, | |
95 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE, | |
96 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN, | |
97 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE, | |
e98a2d6e PP |
98 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, |
99 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
d6e69534 | 100 | STATE_EMIT_MSG_EVENT, |
e98a2d6e | 101 | STATE_SKIP_PACKET_PADDING, |
fc917f65 PP |
102 | STATE_EMIT_MSG_PACKET_END_MULTI, |
103 | STATE_EMIT_MSG_PACKET_END_SINGLE, | |
495490c5 | 104 | STATE_CHECK_EMIT_MSG_STREAM_ACTIVITY_END, |
fc917f65 PP |
105 | STATE_EMIT_MSG_STREAM_ACTIVITY_END, |
106 | STATE_EMIT_MSG_STREAM_END, | |
107 | STATE_DONE, | |
e98a2d6e PP |
108 | }; |
109 | ||
495490c5 PP |
110 | struct end_of_packet_snapshots { |
111 | uint64_t discarded_events; | |
112 | uint64_t packets; | |
113 | uint64_t beginning_clock; | |
114 | uint64_t end_clock; | |
115 | }; | |
116 | ||
d6e69534 PP |
117 | /* CTF message iterator */ |
118 | struct bt_msg_iter { | |
e98a2d6e PP |
119 | /* Visit stack */ |
120 | struct stack *stack; | |
121 | ||
d6e69534 PP |
122 | /* Current message iterator to create messages (weak) */ |
123 | bt_self_message_iterator *msg_iter; | |
5c563278 | 124 | |
fc917f65 PP |
125 | /* |
126 | * True to emit stream beginning and stream activity beginning | |
127 | * messages. | |
128 | */ | |
129 | bool emit_stream_begin_msg; | |
130 | ||
495490c5 | 131 | /* True to emit stream end and stream activity end messages */ |
fc917f65 PP |
132 | bool emit_stream_end_msg; |
133 | ||
495490c5 PP |
134 | /* True to set the stream */ |
135 | bool set_stream; | |
136 | ||
e98a2d6e PP |
137 | /* |
138 | * Current dynamic scope field pointer. | |
139 | * | |
312c056a PP |
140 | * This is set by read_dscope_begin_state() and contains the |
141 | * value of one of the pointers in `dscopes` below. | |
e98a2d6e | 142 | */ |
b19ff26f | 143 | bt_field *cur_dscope_field; |
e98a2d6e | 144 | |
44c440bc PP |
145 | /* |
146 | * True if we're done filling a string field from a text | |
147 | * array/sequence payload. | |
148 | */ | |
149 | bool done_filling_string; | |
150 | ||
151 | /* Trace and classes */ | |
41693723 PP |
152 | /* True to set IR fields */ |
153 | bool set_ir_fields; | |
154 | ||
e98a2d6e | 155 | struct { |
44c440bc PP |
156 | struct ctf_trace_class *tc; |
157 | struct ctf_stream_class *sc; | |
158 | struct ctf_event_class *ec; | |
e98a2d6e PP |
159 | } meta; |
160 | ||
83ebb7f1 | 161 | /* Current packet context field wrapper (NULL if not created yet) */ |
b19ff26f | 162 | bt_packet_context_field *packet_context_field; |
312c056a | 163 | |
e98a2d6e | 164 | /* Current packet (NULL if not created yet) */ |
b19ff26f | 165 | bt_packet *packet; |
e98a2d6e | 166 | |
af87daef | 167 | /* Current stream (NULL if not set yet) */ |
b19ff26f | 168 | bt_stream *stream; |
af87daef | 169 | |
312c056a | 170 | /* Current event (NULL if not created yet) */ |
b19ff26f | 171 | bt_event *event; |
312c056a | 172 | |
d6e69534 PP |
173 | /* Current event message (NULL if not created yet) */ |
174 | bt_message *event_msg; | |
312c056a | 175 | |
44c440bc | 176 | /* Database of current dynamic scopes */ |
e98a2d6e | 177 | struct { |
b19ff26f | 178 | bt_field *stream_packet_context; |
b19ff26f PP |
179 | bt_field *event_common_context; |
180 | bt_field *event_spec_context; | |
181 | bt_field *event_payload; | |
e98a2d6e PP |
182 | } dscopes; |
183 | ||
184 | /* Current state */ | |
185 | enum state state; | |
186 | ||
2cf1d51e | 187 | /* Current medium buffer data */ |
e98a2d6e PP |
188 | struct { |
189 | /* Last address provided by medium */ | |
190 | const uint8_t *addr; | |
191 | ||
192 | /* Buffer size provided by medium (bytes) */ | |
193 | size_t sz; | |
194 | ||
195 | /* Offset within whole packet of addr (bits) */ | |
196 | size_t packet_offset; | |
197 | ||
198 | /* Current position from addr (bits) */ | |
199 | size_t at; | |
174e773b PP |
200 | |
201 | /* Position of the last event header from addr (bits) */ | |
202 | size_t last_eh_at; | |
e98a2d6e PP |
203 | } buf; |
204 | ||
205 | /* Binary type reader */ | |
5cd6d0e5 | 206 | struct bt_bfcr *bfcr; |
e98a2d6e | 207 | |
2cf1d51e | 208 | /* Current medium data */ |
e98a2d6e | 209 | struct { |
d6e69534 | 210 | struct bt_msg_iter_medium_ops medops; |
e98a2d6e PP |
211 | size_t max_request_sz; |
212 | void *data; | |
213 | } medium; | |
214 | ||
215 | /* Current packet size (bits) (-1 if unknown) */ | |
44c440bc | 216 | int64_t cur_exp_packet_total_size; |
e98a2d6e PP |
217 | |
218 | /* Current content size (bits) (-1 if unknown) */ | |
44c440bc | 219 | int64_t cur_exp_packet_content_size; |
c44c3e70 | 220 | |
44c440bc PP |
221 | /* Current stream class ID */ |
222 | int64_t cur_stream_class_id; | |
9e0c8dbb | 223 | |
44c440bc PP |
224 | /* Current event class ID */ |
225 | int64_t cur_event_class_id; | |
5f870343 | 226 | |
44c440bc PP |
227 | /* Current data stream ID */ |
228 | int64_t cur_data_stream_id; | |
5f870343 JG |
229 | |
230 | /* | |
44c440bc PP |
231 | * Offset, in the underlying media, of the current packet's |
232 | * start (-1 if unknown). | |
5f870343 | 233 | */ |
44c440bc PP |
234 | off_t cur_packet_offset; |
235 | ||
236 | /* Default clock's current value */ | |
605e1019 | 237 | uint64_t default_clock_snapshot; |
5f870343 | 238 | |
495490c5 PP |
239 | /* End of current packet snapshots */ |
240 | struct end_of_packet_snapshots snapshots; | |
241 | ||
242 | /* End of previous packet snapshots */ | |
243 | struct end_of_packet_snapshots prev_packet_snapshots; | |
44c440bc PP |
244 | |
245 | /* Stored values (for sequence lengths, variant tags) */ | |
246 | GArray *stored_values; | |
e98a2d6e PP |
247 | }; |
248 | ||
fdf0e7a0 PP |
249 | static inline |
250 | const char *state_string(enum state state) | |
251 | { | |
252 | switch (state) { | |
253 | case STATE_INIT: | |
254 | return "STATE_INIT"; | |
255 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
256 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN"; | |
257 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
258 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE"; | |
259 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
260 | return "STATE_AFTER_TRACE_PACKET_HEADER"; | |
261 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
262 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN"; | |
263 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
264 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE"; | |
265 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
266 | return "STATE_AFTER_STREAM_PACKET_CONTEXT"; | |
fc917f65 PP |
267 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
268 | return "STATE_EMIT_MSG_STREAM_BEGINNING"; | |
269 | case STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING: | |
270 | return "STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING"; | |
271 | case STATE_EMIT_MSG_PACKET_BEGINNING: | |
272 | return "STATE_EMIT_MSG_PACKET_BEGINNING"; | |
495490c5 PP |
273 | case STATE_EMIT_MSG_DISCARDED_EVENTS: |
274 | return "STATE_EMIT_MSG_DISCARDED_EVENTS"; | |
275 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
276 | return "STATE_EMIT_MSG_DISCARDED_PACKETS"; | |
44c440bc PP |
277 | case STATE_DSCOPE_EVENT_HEADER_BEGIN: |
278 | return "STATE_DSCOPE_EVENT_HEADER_BEGIN"; | |
279 | case STATE_DSCOPE_EVENT_HEADER_CONTINUE: | |
280 | return "STATE_DSCOPE_EVENT_HEADER_CONTINUE"; | |
281 | case STATE_AFTER_EVENT_HEADER: | |
282 | return "STATE_AFTER_EVENT_HEADER"; | |
283 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN: | |
284 | return "STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN"; | |
285 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE: | |
286 | return "STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE"; | |
287 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN: | |
288 | return "STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN"; | |
289 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE: | |
290 | return "STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE"; | |
fdf0e7a0 PP |
291 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: |
292 | return "STATE_DSCOPE_EVENT_PAYLOAD_BEGIN"; | |
293 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
294 | return "STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE"; | |
d6e69534 PP |
295 | case STATE_EMIT_MSG_EVENT: |
296 | return "STATE_EMIT_MSG_EVENT"; | |
fdf0e7a0 PP |
297 | case STATE_SKIP_PACKET_PADDING: |
298 | return "STATE_SKIP_PACKET_PADDING"; | |
fc917f65 PP |
299 | case STATE_EMIT_MSG_PACKET_END_MULTI: |
300 | return "STATE_EMIT_MSG_PACKET_END_MULTI"; | |
301 | case STATE_EMIT_MSG_PACKET_END_SINGLE: | |
302 | return "STATE_EMIT_MSG_PACKET_END_SINGLE"; | |
303 | case STATE_EMIT_MSG_STREAM_ACTIVITY_END: | |
304 | return "STATE_EMIT_MSG_STREAM_ACTIVITY_END"; | |
305 | case STATE_EMIT_MSG_STREAM_END: | |
306 | return "STATE_EMIT_MSG_STREAM_END"; | |
307 | case STATE_DONE: | |
308 | return "STATE_DONE"; | |
fdf0e7a0 PP |
309 | default: |
310 | return "(unknown)"; | |
311 | } | |
312 | } | |
313 | ||
2cf1d51e | 314 | static |
d6e69534 | 315 | int bt_msg_iter_switch_packet(struct bt_msg_iter *notit); |
2cf1d51e | 316 | |
e98a2d6e | 317 | static |
d6e69534 | 318 | struct stack *stack_new(struct bt_msg_iter *notit) |
e98a2d6e PP |
319 | { |
320 | struct stack *stack = NULL; | |
321 | ||
322 | stack = g_new0(struct stack, 1); | |
323 | if (!stack) { | |
fdf0e7a0 | 324 | BT_LOGE_STR("Failed to allocate one stack."); |
e98a2d6e PP |
325 | goto error; |
326 | } | |
327 | ||
afe86a06 | 328 | stack->entries = g_array_new(FALSE, TRUE, sizeof(struct stack_entry)); |
e98a2d6e | 329 | if (!stack->entries) { |
afe86a06 | 330 | BT_LOGE_STR("Failed to allocate a GArray."); |
e98a2d6e PP |
331 | goto error; |
332 | } | |
333 | ||
fdf0e7a0 | 334 | BT_LOGD("Created stack: notit-addr=%p, stack-addr=%p", notit, stack); |
44c440bc | 335 | goto end; |
fdf0e7a0 | 336 | |
e98a2d6e PP |
337 | error: |
338 | g_free(stack); | |
44c440bc PP |
339 | stack = NULL; |
340 | ||
341 | end: | |
342 | return stack; | |
e98a2d6e PP |
343 | } |
344 | ||
345 | static | |
346 | void stack_destroy(struct stack *stack) | |
347 | { | |
f6ccaed9 | 348 | BT_ASSERT(stack); |
fdf0e7a0 | 349 | BT_LOGD("Destroying stack: addr=%p", stack); |
afe86a06 PP |
350 | |
351 | if (stack->entries) { | |
352 | g_array_free(stack->entries, TRUE); | |
353 | } | |
354 | ||
e98a2d6e PP |
355 | g_free(stack); |
356 | } | |
357 | ||
358 | static | |
b19ff26f | 359 | void stack_push(struct stack *stack, bt_field *base) |
e98a2d6e | 360 | { |
e98a2d6e | 361 | struct stack_entry *entry; |
e98a2d6e | 362 | |
f6ccaed9 PP |
363 | BT_ASSERT(stack); |
364 | BT_ASSERT(base); | |
fdf0e7a0 | 365 | BT_LOGV("Pushing base field on stack: stack-addr=%p, " |
afe86a06 PP |
366 | "stack-size-before=%zu, stack-size-after=%zu", |
367 | stack, stack->size, stack->size + 1); | |
368 | ||
369 | if (stack->entries->len == stack->size) { | |
370 | g_array_set_size(stack->entries, stack->size + 1); | |
e98a2d6e PP |
371 | } |
372 | ||
afe86a06 | 373 | entry = &g_array_index(stack->entries, struct stack_entry, stack->size); |
312c056a | 374 | entry->base = base; |
afe86a06 PP |
375 | entry->index = 0; |
376 | stack->size++; | |
e98a2d6e PP |
377 | } |
378 | ||
379 | static inline | |
380 | unsigned int stack_size(struct stack *stack) | |
381 | { | |
f6ccaed9 | 382 | BT_ASSERT(stack); |
afe86a06 | 383 | return stack->size; |
e98a2d6e PP |
384 | } |
385 | ||
386 | static | |
387 | void stack_pop(struct stack *stack) | |
388 | { | |
f6ccaed9 PP |
389 | BT_ASSERT(stack); |
390 | BT_ASSERT(stack_size(stack)); | |
fdf0e7a0 | 391 | BT_LOGV("Popping from stack: " |
afe86a06 PP |
392 | "stack-addr=%p, stack-size-before=%zu, stack-size-after=%zu", |
393 | stack, stack->size, stack->size - 1); | |
394 | stack->size--; | |
e98a2d6e PP |
395 | } |
396 | ||
397 | static inline | |
398 | struct stack_entry *stack_top(struct stack *stack) | |
399 | { | |
f6ccaed9 PP |
400 | BT_ASSERT(stack); |
401 | BT_ASSERT(stack_size(stack)); | |
afe86a06 PP |
402 | return &g_array_index(stack->entries, struct stack_entry, |
403 | stack->size - 1); | |
e98a2d6e PP |
404 | } |
405 | ||
406 | static inline | |
407 | bool stack_empty(struct stack *stack) | |
408 | { | |
409 | return stack_size(stack) == 0; | |
410 | } | |
411 | ||
412 | static | |
413 | void stack_clear(struct stack *stack) | |
414 | { | |
f6ccaed9 | 415 | BT_ASSERT(stack); |
afe86a06 | 416 | stack->size = 0; |
e98a2d6e PP |
417 | } |
418 | ||
419 | static inline | |
d6e69534 PP |
420 | enum bt_msg_iter_status msg_iter_status_from_m_status( |
421 | enum bt_msg_iter_medium_status m_status) | |
e98a2d6e | 422 | { |
44c440bc | 423 | /* They are the same */ |
dc77b521 | 424 | return (int) m_status; |
e98a2d6e PP |
425 | } |
426 | ||
427 | static inline | |
d6e69534 | 428 | size_t buf_size_bits(struct bt_msg_iter *notit) |
e98a2d6e | 429 | { |
fdf0e7a0 | 430 | return notit->buf.sz * 8; |
e98a2d6e PP |
431 | } |
432 | ||
433 | static inline | |
d6e69534 | 434 | size_t buf_available_bits(struct bt_msg_iter *notit) |
e98a2d6e PP |
435 | { |
436 | return buf_size_bits(notit) - notit->buf.at; | |
437 | } | |
438 | ||
439 | static inline | |
d6e69534 | 440 | size_t packet_at(struct bt_msg_iter *notit) |
e98a2d6e PP |
441 | { |
442 | return notit->buf.packet_offset + notit->buf.at; | |
443 | } | |
444 | ||
e98a2d6e | 445 | static inline |
d6e69534 | 446 | void buf_consume_bits(struct bt_msg_iter *notit, size_t incr) |
e98a2d6e | 447 | { |
fdf0e7a0 PP |
448 | BT_LOGV("Advancing cursor: notit-addr=%p, cur-before=%zu, cur-after=%zu", |
449 | notit, notit->buf.at, notit->buf.at + incr); | |
e98a2d6e PP |
450 | notit->buf.at += incr; |
451 | } | |
452 | ||
e98a2d6e | 453 | static |
d6e69534 PP |
454 | enum bt_msg_iter_status request_medium_bytes( |
455 | struct bt_msg_iter *notit) | |
e98a2d6e | 456 | { |
fdf0e7a0 PP |
457 | uint8_t *buffer_addr = NULL; |
458 | size_t buffer_sz = 0; | |
d6e69534 | 459 | enum bt_msg_iter_medium_status m_status; |
e98a2d6e | 460 | |
fdf0e7a0 PP |
461 | BT_LOGV("Calling user function (request bytes): notit-addr=%p, " |
462 | "request-size=%zu", notit, notit->medium.max_request_sz); | |
e98a2d6e PP |
463 | m_status = notit->medium.medops.request_bytes( |
464 | notit->medium.max_request_sz, &buffer_addr, | |
465 | &buffer_sz, notit->medium.data); | |
fdf0e7a0 | 466 | BT_LOGV("User function returned: status=%s, buf-addr=%p, buf-size=%zu", |
d6e69534 | 467 | bt_msg_iter_medium_status_string(m_status), |
fdf0e7a0 | 468 | buffer_addr, buffer_sz); |
d6e69534 | 469 | if (m_status == BT_MSG_ITER_MEDIUM_STATUS_OK) { |
f6ccaed9 | 470 | BT_ASSERT(buffer_sz != 0); |
e98a2d6e PP |
471 | |
472 | /* New packet offset is old one + old size (in bits) */ | |
473 | notit->buf.packet_offset += buf_size_bits(notit); | |
474 | ||
475 | /* Restart at the beginning of the new medium buffer */ | |
476 | notit->buf.at = 0; | |
2b186c3e | 477 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
478 | |
479 | /* New medium buffer size */ | |
480 | notit->buf.sz = buffer_sz; | |
481 | ||
482 | /* New medium buffer address */ | |
483 | notit->buf.addr = buffer_addr; | |
fdf0e7a0 PP |
484 | |
485 | BT_LOGV("User function returned new bytes: " | |
486 | "packet-offset=%zu, cur=%zu, size=%zu, addr=%p", | |
487 | notit->buf.packet_offset, notit->buf.at, | |
488 | notit->buf.sz, notit->buf.addr); | |
489 | BT_LOGV_MEM(buffer_addr, buffer_sz, "Returned bytes at %p:", | |
490 | buffer_addr); | |
d6e69534 | 491 | } else if (m_status == BT_MSG_ITER_MEDIUM_STATUS_EOF) { |
0684124b PP |
492 | /* |
493 | * User returned end of stream: validate that we're not | |
494 | * in the middle of a packet header, packet context, or | |
495 | * event. | |
496 | */ | |
44c440bc PP |
497 | if (notit->cur_exp_packet_total_size >= 0) { |
498 | if (packet_at(notit) == | |
499 | notit->cur_exp_packet_total_size) { | |
df0139b8 | 500 | goto end; |
0684124b | 501 | } |
df0139b8 PP |
502 | } else { |
503 | if (packet_at(notit) == 0) { | |
504 | goto end; | |
0684124b | 505 | } |
0684124b | 506 | |
df0139b8 PP |
507 | if (notit->buf.last_eh_at != SIZE_MAX && |
508 | notit->buf.at == notit->buf.last_eh_at) { | |
509 | goto end; | |
0684124b PP |
510 | } |
511 | } | |
512 | ||
0684124b | 513 | /* All other states are invalid */ |
d6e69534 | 514 | BT_LOGW("User function returned %s, but message iterator is in an unexpected state: " |
df0139b8 PP |
515 | "state=%s, cur-packet-size=%" PRId64 ", cur=%zu, " |
516 | "packet-cur=%zu, last-eh-at=%zu", | |
d6e69534 | 517 | bt_msg_iter_medium_status_string(m_status), |
df0139b8 | 518 | state_string(notit->state), |
44c440bc | 519 | notit->cur_exp_packet_total_size, |
df0139b8 PP |
520 | notit->buf.at, packet_at(notit), |
521 | notit->buf.last_eh_at); | |
d6e69534 | 522 | m_status = BT_MSG_ITER_MEDIUM_STATUS_ERROR; |
fdf0e7a0 PP |
523 | } else if (m_status < 0) { |
524 | BT_LOGW("User function failed: status=%s", | |
d6e69534 | 525 | bt_msg_iter_medium_status_string(m_status)); |
e98a2d6e PP |
526 | } |
527 | ||
df0139b8 | 528 | end: |
d6e69534 | 529 | return msg_iter_status_from_m_status(m_status); |
e98a2d6e PP |
530 | } |
531 | ||
532 | static inline | |
d6e69534 PP |
533 | enum bt_msg_iter_status buf_ensure_available_bits( |
534 | struct bt_msg_iter *notit) | |
e98a2d6e | 535 | { |
d6e69534 | 536 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e | 537 | |
44c440bc | 538 | if (unlikely(buf_available_bits(notit) == 0)) { |
e98a2d6e | 539 | /* |
d6e69534 | 540 | * This _cannot_ return BT_MSG_ITER_STATUS_OK |
e98a2d6e PP |
541 | * _and_ no bits. |
542 | */ | |
543 | status = request_medium_bytes(notit); | |
544 | } | |
545 | ||
546 | return status; | |
547 | } | |
548 | ||
549 | static | |
d6e69534 PP |
550 | enum bt_msg_iter_status read_dscope_begin_state( |
551 | struct bt_msg_iter *notit, | |
5cd6d0e5 | 552 | struct ctf_field_class *dscope_fc, |
e98a2d6e | 553 | enum state done_state, enum state continue_state, |
b19ff26f | 554 | bt_field *dscope_field) |
e98a2d6e | 555 | { |
d6e69534 | 556 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 557 | enum bt_bfcr_status bfcr_status; |
e98a2d6e PP |
558 | size_t consumed_bits; |
559 | ||
e98a2d6e | 560 | notit->cur_dscope_field = dscope_field; |
5cd6d0e5 PP |
561 | BT_LOGV("Starting BFCR: notit-addr=%p, bfcr-addr=%p, fc-addr=%p", |
562 | notit, notit->bfcr, dscope_fc); | |
563 | consumed_bits = bt_bfcr_start(notit->bfcr, dscope_fc, | |
e98a2d6e | 564 | notit->buf.addr, notit->buf.at, packet_at(notit), |
5cd6d0e5 PP |
565 | notit->buf.sz, &bfcr_status); |
566 | BT_LOGV("BFCR consumed bits: size=%zu", consumed_bits); | |
e98a2d6e | 567 | |
5cd6d0e5 PP |
568 | switch (bfcr_status) { |
569 | case BT_BFCR_STATUS_OK: | |
570 | /* Field class was read completely */ | |
fdf0e7a0 | 571 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
572 | notit->state = done_state; |
573 | break; | |
5cd6d0e5 PP |
574 | case BT_BFCR_STATUS_EOF: |
575 | BT_LOGV_STR("BFCR needs more data to decode field completely."); | |
e98a2d6e PP |
576 | notit->state = continue_state; |
577 | break; | |
578 | default: | |
5cd6d0e5 PP |
579 | BT_LOGW("BFCR failed to start: notit-addr=%p, bfcr-addr=%p, " |
580 | "status=%s", notit, notit->bfcr, | |
581 | bt_bfcr_status_string(bfcr_status)); | |
d6e69534 | 582 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
583 | goto end; |
584 | } | |
585 | ||
586 | /* Consume bits now since we know we're not in an error state */ | |
587 | buf_consume_bits(notit, consumed_bits); | |
588 | ||
589 | end: | |
590 | return status; | |
591 | } | |
592 | ||
593 | static | |
d6e69534 PP |
594 | enum bt_msg_iter_status read_dscope_continue_state( |
595 | struct bt_msg_iter *notit, enum state done_state) | |
e98a2d6e | 596 | { |
d6e69534 | 597 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 598 | enum bt_bfcr_status bfcr_status; |
e98a2d6e PP |
599 | size_t consumed_bits; |
600 | ||
5cd6d0e5 PP |
601 | BT_LOGV("Continuing BFCR: notit-addr=%p, bfcr-addr=%p", |
602 | notit, notit->bfcr); | |
df0139b8 | 603 | |
e98a2d6e | 604 | status = buf_ensure_available_bits(notit); |
d6e69534 | 605 | if (status != BT_MSG_ITER_STATUS_OK) { |
fdf0e7a0 PP |
606 | if (status < 0) { |
607 | BT_LOGW("Cannot ensure that buffer has at least one byte: " | |
d6e69534 PP |
608 | "msg-addr=%p, status=%s", |
609 | notit, bt_msg_iter_status_string(status)); | |
fdf0e7a0 PP |
610 | } else { |
611 | BT_LOGV("Cannot ensure that buffer has at least one byte: " | |
d6e69534 PP |
612 | "msg-addr=%p, status=%s", |
613 | notit, bt_msg_iter_status_string(status)); | |
fdf0e7a0 PP |
614 | } |
615 | ||
e98a2d6e PP |
616 | goto end; |
617 | } | |
618 | ||
5cd6d0e5 PP |
619 | consumed_bits = bt_bfcr_continue(notit->bfcr, notit->buf.addr, |
620 | notit->buf.sz, &bfcr_status); | |
621 | BT_LOGV("BFCR consumed bits: size=%zu", consumed_bits); | |
e98a2d6e | 622 | |
5cd6d0e5 PP |
623 | switch (bfcr_status) { |
624 | case BT_BFCR_STATUS_OK: | |
78586d8a | 625 | /* Type was read completely. */ |
fdf0e7a0 | 626 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
627 | notit->state = done_state; |
628 | break; | |
5cd6d0e5 | 629 | case BT_BFCR_STATUS_EOF: |
78586d8a | 630 | /* Stay in this continue state. */ |
5cd6d0e5 | 631 | BT_LOGV_STR("BFCR needs more data to decode field completely."); |
e98a2d6e PP |
632 | break; |
633 | default: | |
5cd6d0e5 PP |
634 | BT_LOGW("BFCR failed to continue: notit-addr=%p, bfcr-addr=%p, " |
635 | "status=%s", notit, notit->bfcr, | |
636 | bt_bfcr_status_string(bfcr_status)); | |
d6e69534 | 637 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
638 | goto end; |
639 | } | |
640 | ||
78586d8a | 641 | /* Consume bits now since we know we're not in an error state. */ |
e98a2d6e | 642 | buf_consume_bits(notit, consumed_bits); |
e98a2d6e PP |
643 | end: |
644 | return status; | |
645 | } | |
646 | ||
647 | static | |
d6e69534 | 648 | void release_event_dscopes(struct bt_msg_iter *notit) |
e98a2d6e | 649 | { |
44c440bc PP |
650 | notit->dscopes.event_common_context = NULL; |
651 | notit->dscopes.event_spec_context = NULL; | |
312c056a | 652 | notit->dscopes.event_payload = NULL; |
e98a2d6e PP |
653 | } |
654 | ||
655 | static | |
d6e69534 | 656 | void release_all_dscopes(struct bt_msg_iter *notit) |
e98a2d6e | 657 | { |
312c056a PP |
658 | notit->dscopes.stream_packet_context = NULL; |
659 | ||
660 | if (notit->packet_context_field) { | |
40f4ba76 | 661 | bt_packet_context_field_release(notit->packet_context_field); |
312c056a PP |
662 | notit->packet_context_field = NULL; |
663 | } | |
664 | ||
665 | release_event_dscopes(notit); | |
e98a2d6e PP |
666 | } |
667 | ||
668 | static | |
d6e69534 PP |
669 | enum bt_msg_iter_status read_packet_header_begin_state( |
670 | struct bt_msg_iter *notit) | |
e98a2d6e | 671 | { |
5cd6d0e5 | 672 | struct ctf_field_class *packet_header_fc = NULL; |
d6e69534 | 673 | enum bt_msg_iter_status ret = BT_MSG_ITER_STATUS_OK; |
e98a2d6e | 674 | |
d6e69534 | 675 | if (bt_msg_iter_switch_packet(notit)) { |
fdf0e7a0 | 676 | BT_LOGW("Cannot switch packet: notit-addr=%p", notit); |
d6e69534 | 677 | ret = BT_MSG_ITER_STATUS_ERROR; |
2cf1d51e JG |
678 | goto end; |
679 | } | |
e98a2d6e | 680 | |
fc917f65 PP |
681 | /* |
682 | * Make sure at least one bit is available for this packet. An | |
683 | * empty packet is impossible. If we reach the end of the medium | |
684 | * at this point, then it's considered the end of the stream. | |
685 | */ | |
686 | ret = buf_ensure_available_bits(notit); | |
687 | switch (ret) { | |
688 | case BT_MSG_ITER_STATUS_OK: | |
689 | break; | |
690 | case BT_MSG_ITER_STATUS_EOF: | |
691 | ret = BT_MSG_ITER_STATUS_OK; | |
495490c5 | 692 | notit->state = STATE_CHECK_EMIT_MSG_STREAM_ACTIVITY_END; |
fc917f65 PP |
693 | goto end; |
694 | default: | |
695 | goto end; | |
696 | } | |
697 | ||
862ca4ed | 698 | /* Packet header class is common to the whole trace class. */ |
5cd6d0e5 PP |
699 | packet_header_fc = notit->meta.tc->packet_header_fc; |
700 | if (!packet_header_fc) { | |
835b2d10 | 701 | notit->state = STATE_AFTER_TRACE_PACKET_HEADER; |
e98a2d6e PP |
702 | goto end; |
703 | } | |
704 | ||
44c440bc PP |
705 | notit->cur_stream_class_id = -1; |
706 | notit->cur_event_class_id = -1; | |
707 | notit->cur_data_stream_id = -1; | |
fdf0e7a0 | 708 | BT_LOGV("Decoding packet header field:" |
862ca4ed PP |
709 | "notit-addr=%p, trace-class-addr=%p, fc-addr=%p", |
710 | notit, notit->meta.tc, packet_header_fc); | |
5cd6d0e5 | 711 | ret = read_dscope_begin_state(notit, packet_header_fc, |
fdf0e7a0 | 712 | STATE_AFTER_TRACE_PACKET_HEADER, |
83ebb7f1 | 713 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, NULL); |
fdf0e7a0 PP |
714 | if (ret < 0) { |
715 | BT_LOGW("Cannot decode packet header field: " | |
862ca4ed PP |
716 | "notit-addr=%p, trace-class-addr=%p, " |
717 | "fc-addr=%p", | |
718 | notit, notit->meta.tc, packet_header_fc); | |
fdf0e7a0 | 719 | } |
d1e46835 | 720 | |
e98a2d6e | 721 | end: |
2cf1d51e | 722 | return ret; |
e98a2d6e PP |
723 | } |
724 | ||
725 | static | |
d6e69534 PP |
726 | enum bt_msg_iter_status read_packet_header_continue_state( |
727 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
728 | { |
729 | return read_dscope_continue_state(notit, | |
44c440bc | 730 | STATE_AFTER_TRACE_PACKET_HEADER); |
5f870343 JG |
731 | } |
732 | ||
e98a2d6e | 733 | static inline |
d6e69534 | 734 | enum bt_msg_iter_status set_current_stream_class(struct bt_msg_iter *notit) |
e98a2d6e | 735 | { |
d6e69534 | 736 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
44c440bc PP |
737 | struct ctf_stream_class *new_stream_class = NULL; |
738 | ||
739 | if (notit->cur_stream_class_id == -1) { | |
fdf0e7a0 | 740 | /* |
44c440bc PP |
741 | * No current stream class ID field, therefore only one |
742 | * stream class. | |
fdf0e7a0 | 743 | */ |
44c440bc PP |
744 | if (notit->meta.tc->stream_classes->len != 1) { |
745 | BT_LOGW("Need exactly one stream class since there's " | |
746 | "no stream class ID field: " | |
862ca4ed | 747 | "notit-addr=%p", notit); |
d6e69534 | 748 | status = BT_MSG_ITER_STATUS_ERROR; |
44c440bc PP |
749 | goto end; |
750 | } | |
e98a2d6e | 751 | |
44c440bc PP |
752 | new_stream_class = notit->meta.tc->stream_classes->pdata[0]; |
753 | notit->cur_stream_class_id = new_stream_class->id; | |
e98a2d6e PP |
754 | } |
755 | ||
44c440bc PP |
756 | new_stream_class = ctf_trace_class_borrow_stream_class_by_id( |
757 | notit->meta.tc, notit->cur_stream_class_id); | |
115de887 | 758 | if (!new_stream_class) { |
862ca4ed | 759 | BT_LOGW("No stream class with ID of stream class ID to use in trace class: " |
fdf0e7a0 | 760 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " |
862ca4ed PP |
761 | "trace-class-addr=%p", |
762 | notit, notit->cur_stream_class_id, notit->meta.tc); | |
d6e69534 | 763 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
764 | goto end; |
765 | } | |
766 | ||
44c440bc PP |
767 | if (notit->meta.sc) { |
768 | if (new_stream_class != notit->meta.sc) { | |
115de887 PP |
769 | BT_LOGW("Two packets refer to two different stream classes within the same packet sequence: " |
770 | "notit-addr=%p, prev-stream-class-addr=%p, " | |
115de887 PP |
771 | "prev-stream-class-id=%" PRId64 ", " |
772 | "next-stream-class-addr=%p, " | |
115de887 | 773 | "next-stream-class-id=%" PRId64 ", " |
862ca4ed | 774 | "trace-addr=%p", |
44c440bc PP |
775 | notit, notit->meta.sc, |
776 | notit->meta.sc->id, | |
115de887 | 777 | new_stream_class, |
44c440bc | 778 | new_stream_class->id, |
862ca4ed | 779 | notit->meta.tc); |
d6e69534 | 780 | status = BT_MSG_ITER_STATUS_ERROR; |
115de887 PP |
781 | goto end; |
782 | } | |
783 | } else { | |
44c440bc | 784 | notit->meta.sc = new_stream_class; |
115de887 PP |
785 | } |
786 | ||
fdf0e7a0 PP |
787 | BT_LOGV("Set current stream class: " |
788 | "notit-addr=%p, stream-class-addr=%p, " | |
44c440bc PP |
789 | "stream-class-id=%" PRId64, |
790 | notit, notit->meta.sc, notit->meta.sc->id); | |
d1e46835 | 791 | |
e98a2d6e | 792 | end: |
e98a2d6e PP |
793 | return status; |
794 | } | |
795 | ||
312c056a | 796 | static inline |
d6e69534 | 797 | enum bt_msg_iter_status set_current_stream(struct bt_msg_iter *notit) |
312c056a | 798 | { |
d6e69534 | 799 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
b19ff26f | 800 | bt_stream *stream = NULL; |
312c056a PP |
801 | |
802 | BT_LOGV("Calling user function (get stream): notit-addr=%p, " | |
44c440bc PP |
803 | "stream-class-addr=%p, stream-class-id=%" PRId64, |
804 | notit, notit->meta.sc, | |
805 | notit->meta.sc->id); | |
398454ed | 806 | stream = notit->medium.medops.borrow_stream( |
44c440bc | 807 | notit->meta.sc->ir_sc, notit->cur_data_stream_id, |
398454ed | 808 | notit->medium.data); |
c5b9b441 | 809 | bt_stream_get_ref(stream); |
312c056a PP |
810 | BT_LOGV("User function returned: stream-addr=%p", stream); |
811 | if (!stream) { | |
44c440bc PP |
812 | BT_LOGW_STR("User function failed to return a stream object " |
813 | "for the given stream class."); | |
d6e69534 | 814 | status = BT_MSG_ITER_STATUS_ERROR; |
312c056a PP |
815 | goto end; |
816 | } | |
817 | ||
818 | if (notit->stream && stream != notit->stream) { | |
44c440bc PP |
819 | BT_LOGW("User function returned a different stream than the " |
820 | "previous one for the same sequence of packets."); | |
d6e69534 | 821 | status = BT_MSG_ITER_STATUS_ERROR; |
312c056a PP |
822 | goto end; |
823 | } | |
824 | ||
c5b9b441 | 825 | BT_STREAM_MOVE_REF(notit->stream, stream); |
312c056a PP |
826 | |
827 | end: | |
c5b9b441 | 828 | bt_stream_put_ref(stream); |
312c056a PP |
829 | return status; |
830 | } | |
831 | ||
832 | static inline | |
d6e69534 | 833 | enum bt_msg_iter_status set_current_packet(struct bt_msg_iter *notit) |
312c056a | 834 | { |
d6e69534 | 835 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
b19ff26f | 836 | bt_packet *packet = NULL; |
312c056a | 837 | |
d6e69534 | 838 | BT_LOGV("Creating packet for packet message: " |
312c056a PP |
839 | "notit-addr=%p", notit); |
840 | BT_LOGV("Creating packet from stream: " | |
841 | "notit-addr=%p, stream-addr=%p, " | |
842 | "stream-class-addr=%p, " | |
312c056a | 843 | "stream-class-id=%" PRId64, |
44c440bc PP |
844 | notit, notit->stream, notit->meta.sc, |
845 | notit->meta.sc->id); | |
312c056a PP |
846 | |
847 | /* Create packet */ | |
848 | BT_ASSERT(notit->stream); | |
40f4ba76 | 849 | packet = bt_packet_create(notit->stream); |
312c056a PP |
850 | if (!packet) { |
851 | BT_LOGE("Cannot create packet from stream: " | |
852 | "notit-addr=%p, stream-addr=%p, " | |
853 | "stream-class-addr=%p, " | |
312c056a | 854 | "stream-class-id=%" PRId64, |
44c440bc PP |
855 | notit, notit->stream, notit->meta.sc, |
856 | notit->meta.sc->id); | |
312c056a PP |
857 | goto error; |
858 | } | |
859 | ||
860 | goto end; | |
861 | ||
862 | error: | |
c5b9b441 | 863 | BT_PACKET_PUT_REF_AND_RESET(packet); |
d6e69534 | 864 | status = BT_MSG_ITER_STATUS_ERROR; |
312c056a PP |
865 | |
866 | end: | |
c5b9b441 | 867 | BT_PACKET_MOVE_REF(notit->packet, packet); |
312c056a PP |
868 | return status; |
869 | } | |
870 | ||
e98a2d6e | 871 | static |
d6e69534 PP |
872 | enum bt_msg_iter_status after_packet_header_state( |
873 | struct bt_msg_iter *notit) | |
e98a2d6e | 874 | { |
d6e69534 | 875 | enum bt_msg_iter_status status; |
e98a2d6e PP |
876 | |
877 | status = set_current_stream_class(notit); | |
d6e69534 | 878 | if (status != BT_MSG_ITER_STATUS_OK) { |
312c056a | 879 | goto end; |
e98a2d6e PP |
880 | } |
881 | ||
312c056a PP |
882 | notit->state = STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN; |
883 | ||
884 | end: | |
e98a2d6e PP |
885 | return status; |
886 | } | |
887 | ||
888 | static | |
d6e69534 PP |
889 | enum bt_msg_iter_status read_packet_context_begin_state( |
890 | struct bt_msg_iter *notit) | |
e98a2d6e | 891 | { |
d6e69534 | 892 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 893 | struct ctf_field_class *packet_context_fc; |
e98a2d6e | 894 | |
44c440bc | 895 | BT_ASSERT(notit->meta.sc); |
5cd6d0e5 PP |
896 | packet_context_fc = notit->meta.sc->packet_context_fc; |
897 | if (!packet_context_fc) { | |
898 | BT_LOGV("No packet packet context field class in stream class: continuing: " | |
fdf0e7a0 | 899 | "notit-addr=%p, stream-class-addr=%p, " |
44c440bc PP |
900 | "stream-class-id=%" PRId64, |
901 | notit, notit->meta.sc, | |
902 | notit->meta.sc->id); | |
835b2d10 | 903 | notit->state = STATE_AFTER_STREAM_PACKET_CONTEXT; |
e98a2d6e PP |
904 | goto end; |
905 | } | |
906 | ||
312c056a | 907 | BT_ASSERT(!notit->packet_context_field); |
44c440bc | 908 | |
5cd6d0e5 | 909 | if (packet_context_fc->in_ir) { |
44c440bc PP |
910 | /* |
911 | * Create free packet context field from stream class. | |
912 | * This field is going to be moved to the packet once we | |
913 | * create it. We cannot create the packet now because a | |
914 | * packet is created from a stream, and this API must be | |
83ebb7f1 PP |
915 | * able to return the packet context properties without |
916 | * creating a stream | |
917 | * (bt_msg_iter_get_packet_properties()). | |
44c440bc PP |
918 | */ |
919 | notit->packet_context_field = | |
40f4ba76 | 920 | bt_packet_context_field_create( |
e5be10ef | 921 | notit->meta.sc->ir_sc); |
44c440bc PP |
922 | if (!notit->packet_context_field) { |
923 | BT_LOGE_STR("Cannot create packet context field wrapper from stream class."); | |
d6e69534 | 924 | status = BT_MSG_ITER_STATUS_ERROR; |
44c440bc PP |
925 | goto end; |
926 | } | |
927 | ||
928 | notit->dscopes.stream_packet_context = | |
40f4ba76 | 929 | bt_packet_context_field_borrow_field( |
e5be10ef | 930 | notit->packet_context_field); |
44c440bc | 931 | BT_ASSERT(notit->dscopes.stream_packet_context); |
312c056a PP |
932 | } |
933 | ||
fdf0e7a0 PP |
934 | BT_LOGV("Decoding packet context field: " |
935 | "notit-addr=%p, stream-class-addr=%p, " | |
5cd6d0e5 | 936 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc | 937 | notit, notit->meta.sc, |
5cd6d0e5 PP |
938 | notit->meta.sc->id, packet_context_fc); |
939 | status = read_dscope_begin_state(notit, packet_context_fc, | |
fdf0e7a0 PP |
940 | STATE_AFTER_STREAM_PACKET_CONTEXT, |
941 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
312c056a | 942 | notit->dscopes.stream_packet_context); |
fdf0e7a0 PP |
943 | if (status < 0) { |
944 | BT_LOGW("Cannot decode packet context field: " | |
945 | "notit-addr=%p, stream-class-addr=%p, " | |
5cd6d0e5 | 946 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
947 | notit, notit->meta.sc, |
948 | notit->meta.sc->id, | |
5cd6d0e5 | 949 | packet_context_fc); |
fdf0e7a0 | 950 | } |
e98a2d6e PP |
951 | |
952 | end: | |
e98a2d6e PP |
953 | return status; |
954 | } | |
955 | ||
956 | static | |
d6e69534 PP |
957 | enum bt_msg_iter_status read_packet_context_continue_state( |
958 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
959 | { |
960 | return read_dscope_continue_state(notit, | |
78586d8a | 961 | STATE_AFTER_STREAM_PACKET_CONTEXT); |
e98a2d6e PP |
962 | } |
963 | ||
78586d8a | 964 | static |
d6e69534 PP |
965 | enum bt_msg_iter_status set_current_packet_content_sizes( |
966 | struct bt_msg_iter *notit) | |
e98a2d6e | 967 | { |
d6e69534 | 968 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e | 969 | |
44c440bc PP |
970 | if (notit->cur_exp_packet_total_size == -1) { |
971 | if (notit->cur_exp_packet_content_size != -1) { | |
972 | BT_LOGW("Content size is set, but packet size is not: " | |
fdf0e7a0 | 973 | "notit-addr=%p, packet-context-field-addr=%p, " |
44c440bc | 974 | "packet-size=%" PRId64 ", content-size=%" PRId64, |
fdf0e7a0 | 975 | notit, notit->dscopes.stream_packet_context, |
44c440bc PP |
976 | notit->cur_exp_packet_total_size, |
977 | notit->cur_exp_packet_content_size); | |
d6e69534 | 978 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
979 | goto end; |
980 | } | |
e98a2d6e | 981 | } else { |
44c440bc PP |
982 | if (notit->cur_exp_packet_content_size == -1) { |
983 | notit->cur_exp_packet_content_size = | |
984 | notit->cur_exp_packet_total_size; | |
985 | } | |
e98a2d6e PP |
986 | } |
987 | ||
44c440bc PP |
988 | if (notit->cur_exp_packet_content_size > |
989 | notit->cur_exp_packet_total_size) { | |
990 | BT_LOGW("Invalid packet or content size: " | |
991 | "content size is greater than packet size: " | |
fdf0e7a0 | 992 | "notit-addr=%p, packet-context-field-addr=%p, " |
44c440bc | 993 | "packet-size=%" PRId64 ", content-size=%" PRId64, |
fdf0e7a0 | 994 | notit, notit->dscopes.stream_packet_context, |
44c440bc PP |
995 | notit->cur_exp_packet_total_size, |
996 | notit->cur_exp_packet_content_size); | |
d6e69534 | 997 | status = BT_MSG_ITER_STATUS_ERROR; |
fdf0e7a0 PP |
998 | goto end; |
999 | } | |
1000 | ||
fdf0e7a0 PP |
1001 | BT_LOGV("Set current packet and content sizes: " |
1002 | "notit-addr=%p, packet-size=%" PRIu64 ", content-size=%" PRIu64, | |
44c440bc PP |
1003 | notit, notit->cur_exp_packet_total_size, |
1004 | notit->cur_exp_packet_content_size); | |
fc917f65 | 1005 | |
e98a2d6e | 1006 | end: |
e98a2d6e PP |
1007 | return status; |
1008 | } | |
1009 | ||
1010 | static | |
fc917f65 | 1011 | enum bt_msg_iter_status after_packet_context_state(struct bt_msg_iter *notit) |
e98a2d6e | 1012 | { |
d6e69534 | 1013 | enum bt_msg_iter_status status; |
e98a2d6e PP |
1014 | |
1015 | status = set_current_packet_content_sizes(notit); | |
d6e69534 | 1016 | if (status != BT_MSG_ITER_STATUS_OK) { |
e22b45d0 PP |
1017 | goto end; |
1018 | } | |
1019 | ||
fc917f65 PP |
1020 | if (notit->stream) { |
1021 | /* | |
1022 | * Stream exists, which means we already emitted at | |
1023 | * least one packet beginning message, so the initial | |
1024 | * stream beginning message was also emitted. | |
1025 | */ | |
495490c5 | 1026 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS; |
e22b45d0 | 1027 | } else { |
495490c5 | 1028 | notit->state = STATE_CHECK_EMIT_MSG_STREAM_BEGINNING; |
e98a2d6e PP |
1029 | } |
1030 | ||
e22b45d0 | 1031 | end: |
e98a2d6e PP |
1032 | return status; |
1033 | } | |
1034 | ||
1035 | static | |
fc917f65 | 1036 | enum bt_msg_iter_status read_event_header_begin_state(struct bt_msg_iter *notit) |
e98a2d6e | 1037 | { |
d6e69534 | 1038 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 1039 | struct ctf_field_class *event_header_fc = NULL; |
e98a2d6e | 1040 | |
174e773b PP |
1041 | /* Reset the position of the last event header */ |
1042 | notit->buf.last_eh_at = notit->buf.at; | |
44c440bc | 1043 | notit->cur_event_class_id = -1; |
174e773b | 1044 | |
e98a2d6e | 1045 | /* Check if we have some content left */ |
44c440bc PP |
1046 | if (notit->cur_exp_packet_content_size >= 0) { |
1047 | if (unlikely(packet_at(notit) == | |
1048 | notit->cur_exp_packet_content_size)) { | |
e98a2d6e | 1049 | /* No more events! */ |
fdf0e7a0 PP |
1050 | BT_LOGV("Reached end of packet: notit-addr=%p, " |
1051 | "cur=%zu", notit, packet_at(notit)); | |
fc917f65 | 1052 | notit->state = STATE_EMIT_MSG_PACKET_END_MULTI; |
e98a2d6e | 1053 | goto end; |
44c440bc PP |
1054 | } else if (unlikely(packet_at(notit) > |
1055 | notit->cur_exp_packet_content_size)) { | |
e98a2d6e | 1056 | /* That's not supposed to happen */ |
fdf0e7a0 | 1057 | BT_LOGV("Before decoding event header field: cursor is passed the packet's content: " |
1974687e | 1058 | "notit-addr=%p, content-size=%" PRId64 ", " |
44c440bc PP |
1059 | "cur=%zu", notit, |
1060 | notit->cur_exp_packet_content_size, | |
fdf0e7a0 | 1061 | packet_at(notit)); |
d6e69534 | 1062 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
1063 | goto end; |
1064 | } | |
44c440bc PP |
1065 | } else { |
1066 | /* | |
1067 | * "Infinite" content: we're done when the medium has | |
1068 | * nothing else for us. | |
1069 | */ | |
1070 | status = buf_ensure_available_bits(notit); | |
fc917f65 PP |
1071 | switch (status) { |
1072 | case BT_MSG_ITER_STATUS_OK: | |
1073 | break; | |
1074 | case BT_MSG_ITER_STATUS_EOF: | |
1075 | status = BT_MSG_ITER_STATUS_OK; | |
1076 | notit->state = STATE_EMIT_MSG_PACKET_END_SINGLE; | |
1077 | goto end; | |
1078 | default: | |
44c440bc PP |
1079 | goto end; |
1080 | } | |
e98a2d6e PP |
1081 | } |
1082 | ||
312c056a | 1083 | release_event_dscopes(notit); |
44c440bc | 1084 | BT_ASSERT(notit->meta.sc); |
5cd6d0e5 PP |
1085 | event_header_fc = notit->meta.sc->event_header_fc; |
1086 | if (!event_header_fc) { | |
44c440bc | 1087 | notit->state = STATE_AFTER_EVENT_HEADER; |
e98a2d6e PP |
1088 | goto end; |
1089 | } | |
1090 | ||
fdf0e7a0 PP |
1091 | BT_LOGV("Decoding event header field: " |
1092 | "notit-addr=%p, stream-class-addr=%p, " | |
44c440bc | 1093 | "stream-class-id=%" PRId64 ", " |
5cd6d0e5 | 1094 | "fc-addr=%p", |
44c440bc PP |
1095 | notit, notit->meta.sc, |
1096 | notit->meta.sc->id, | |
5cd6d0e5 PP |
1097 | event_header_fc); |
1098 | status = read_dscope_begin_state(notit, event_header_fc, | |
44c440bc | 1099 | STATE_AFTER_EVENT_HEADER, |
83ebb7f1 | 1100 | STATE_DSCOPE_EVENT_HEADER_CONTINUE, NULL); |
fdf0e7a0 PP |
1101 | if (status < 0) { |
1102 | BT_LOGW("Cannot decode event header field: " | |
1103 | "notit-addr=%p, stream-class-addr=%p, " | |
5cd6d0e5 | 1104 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1105 | notit, notit->meta.sc, |
1106 | notit->meta.sc->id, | |
5cd6d0e5 | 1107 | event_header_fc); |
fdf0e7a0 | 1108 | } |
e98a2d6e | 1109 | |
d1e46835 | 1110 | end: |
e98a2d6e PP |
1111 | return status; |
1112 | } | |
1113 | ||
1114 | static | |
d6e69534 PP |
1115 | enum bt_msg_iter_status read_event_header_continue_state( |
1116 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
1117 | { |
1118 | return read_dscope_continue_state(notit, | |
44c440bc | 1119 | STATE_AFTER_EVENT_HEADER); |
e98a2d6e PP |
1120 | } |
1121 | ||
1122 | static inline | |
d6e69534 | 1123 | enum bt_msg_iter_status set_current_event_class(struct bt_msg_iter *notit) |
e98a2d6e | 1124 | { |
d6e69534 | 1125 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e | 1126 | |
44c440bc | 1127 | struct ctf_event_class *new_event_class = NULL; |
e98a2d6e | 1128 | |
44c440bc | 1129 | if (notit->cur_event_class_id == -1) { |
e98a2d6e | 1130 | /* |
44c440bc PP |
1131 | * No current event class ID field, therefore only one |
1132 | * event class. | |
e98a2d6e | 1133 | */ |
44c440bc PP |
1134 | if (notit->meta.sc->event_classes->len != 1) { |
1135 | BT_LOGW("Need exactly one event class since there's " | |
1136 | "no event class ID field: " | |
862ca4ed | 1137 | "notit-addr=%p", notit); |
d6e69534 | 1138 | status = BT_MSG_ITER_STATUS_ERROR; |
44c440bc | 1139 | goto end; |
fdf0e7a0 | 1140 | } |
e98a2d6e | 1141 | |
44c440bc PP |
1142 | new_event_class = notit->meta.sc->event_classes->pdata[0]; |
1143 | notit->cur_event_class_id = new_event_class->id; | |
e98a2d6e PP |
1144 | } |
1145 | ||
44c440bc PP |
1146 | new_event_class = ctf_stream_class_borrow_event_class_by_id( |
1147 | notit->meta.sc, notit->cur_event_class_id); | |
1148 | if (!new_event_class) { | |
fdf0e7a0 | 1149 | BT_LOGW("No event class with ID of event class ID to use in stream class: " |
44c440bc PP |
1150 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " |
1151 | "event-class-id=%" PRIu64 ", " | |
862ca4ed | 1152 | "trace-class-addr=%p", |
44c440bc | 1153 | notit, notit->meta.sc->id, notit->cur_event_class_id, |
862ca4ed | 1154 | notit->meta.tc); |
d6e69534 | 1155 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
1156 | goto end; |
1157 | } | |
1158 | ||
44c440bc | 1159 | notit->meta.ec = new_event_class; |
fdf0e7a0 PP |
1160 | BT_LOGV("Set current event class: " |
1161 | "notit-addr=%p, event-class-addr=%p, " | |
44c440bc PP |
1162 | "event-class-id=%" PRId64 ", " |
1163 | "event-class-name=\"%s\"", | |
1164 | notit, notit->meta.ec, notit->meta.ec->id, | |
1165 | notit->meta.ec->name->str); | |
fdf0e7a0 | 1166 | |
e98a2d6e | 1167 | end: |
e98a2d6e PP |
1168 | return status; |
1169 | } | |
1170 | ||
312c056a | 1171 | static inline |
d6e69534 PP |
1172 | enum bt_msg_iter_status set_current_event_message( |
1173 | struct bt_msg_iter *notit) | |
312c056a | 1174 | { |
d6e69534 PP |
1175 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
1176 | bt_message *msg = NULL; | |
312c056a | 1177 | |
44c440bc | 1178 | BT_ASSERT(notit->meta.ec); |
312c056a | 1179 | BT_ASSERT(notit->packet); |
d6e69534 | 1180 | BT_LOGV("Creating event message from event class and packet: " |
312c056a | 1181 | "notit-addr=%p, ec-addr=%p, ec-name=\"%s\", packet-addr=%p", |
44c440bc PP |
1182 | notit, notit->meta.ec, |
1183 | notit->meta.ec->name->str, | |
312c056a | 1184 | notit->packet); |
d6e69534 | 1185 | BT_ASSERT(notit->msg_iter); |
2c091c04 PP |
1186 | BT_ASSERT(notit->meta.sc); |
1187 | ||
1188 | if (bt_stream_class_borrow_default_clock_class(notit->meta.sc->ir_sc)) { | |
1189 | msg = bt_message_event_create_with_default_clock_snapshot( | |
1190 | notit->msg_iter, notit->meta.ec->ir_ec, | |
1191 | notit->packet, notit->default_clock_snapshot); | |
1192 | } else { | |
1193 | msg = bt_message_event_create(notit->msg_iter, | |
1194 | notit->meta.ec->ir_ec, notit->packet); | |
1195 | } | |
1196 | ||
d6e69534 PP |
1197 | if (!msg) { |
1198 | BT_LOGE("Cannot create event message: " | |
312c056a PP |
1199 | "notit-addr=%p, ec-addr=%p, ec-name=\"%s\", " |
1200 | "packet-addr=%p", | |
44c440bc PP |
1201 | notit, notit->meta.ec, |
1202 | notit->meta.ec->name->str, | |
312c056a PP |
1203 | notit->packet); |
1204 | goto error; | |
1205 | } | |
1206 | ||
1207 | goto end; | |
1208 | ||
1209 | error: | |
d6e69534 PP |
1210 | BT_MESSAGE_PUT_REF_AND_RESET(msg); |
1211 | status = BT_MSG_ITER_STATUS_ERROR; | |
312c056a PP |
1212 | |
1213 | end: | |
d6e69534 | 1214 | BT_MESSAGE_MOVE_REF(notit->event_msg, msg); |
312c056a PP |
1215 | return status; |
1216 | } | |
1217 | ||
e98a2d6e | 1218 | static |
d6e69534 PP |
1219 | enum bt_msg_iter_status after_event_header_state( |
1220 | struct bt_msg_iter *notit) | |
e98a2d6e | 1221 | { |
d6e69534 | 1222 | enum bt_msg_iter_status status; |
e98a2d6e | 1223 | |
e98a2d6e | 1224 | status = set_current_event_class(notit); |
d6e69534 | 1225 | if (status != BT_MSG_ITER_STATUS_OK) { |
e98a2d6e PP |
1226 | goto end; |
1227 | } | |
1228 | ||
d6e69534 PP |
1229 | status = set_current_event_message(notit); |
1230 | if (status != BT_MSG_ITER_STATUS_OK) { | |
312c056a PP |
1231 | goto end; |
1232 | } | |
1233 | ||
d6e69534 PP |
1234 | notit->event = bt_message_event_borrow_event( |
1235 | notit->event_msg); | |
312c056a | 1236 | BT_ASSERT(notit->event); |
44c440bc | 1237 | notit->state = STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN; |
e98a2d6e PP |
1238 | |
1239 | end: | |
1240 | return status; | |
1241 | } | |
1242 | ||
1243 | static | |
d6e69534 PP |
1244 | enum bt_msg_iter_status read_event_common_context_begin_state( |
1245 | struct bt_msg_iter *notit) | |
e98a2d6e | 1246 | { |
d6e69534 | 1247 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 1248 | struct ctf_field_class *event_common_context_fc; |
e98a2d6e | 1249 | |
5cd6d0e5 PP |
1250 | event_common_context_fc = notit->meta.sc->event_common_context_fc; |
1251 | if (!event_common_context_fc) { | |
44c440bc | 1252 | notit->state = STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN; |
e98a2d6e PP |
1253 | goto end; |
1254 | } | |
1255 | ||
5cd6d0e5 | 1256 | if (event_common_context_fc->in_ir) { |
44c440bc PP |
1257 | BT_ASSERT(!notit->dscopes.event_common_context); |
1258 | notit->dscopes.event_common_context = | |
40f4ba76 | 1259 | bt_event_borrow_common_context_field( |
e5be10ef | 1260 | notit->event); |
44c440bc PP |
1261 | BT_ASSERT(notit->dscopes.event_common_context); |
1262 | } | |
1263 | ||
1264 | BT_LOGV("Decoding event common context field: " | |
fdf0e7a0 | 1265 | "notit-addr=%p, stream-class-addr=%p, " |
44c440bc | 1266 | "stream-class-id=%" PRId64 ", " |
5cd6d0e5 | 1267 | "fc-addr=%p", |
44c440bc PP |
1268 | notit, notit->meta.sc, |
1269 | notit->meta.sc->id, | |
5cd6d0e5 PP |
1270 | event_common_context_fc); |
1271 | status = read_dscope_begin_state(notit, event_common_context_fc, | |
44c440bc PP |
1272 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN, |
1273 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE, | |
1274 | notit->dscopes.event_common_context); | |
fdf0e7a0 | 1275 | if (status < 0) { |
44c440bc | 1276 | BT_LOGW("Cannot decode event common context field: " |
fdf0e7a0 | 1277 | "notit-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 1278 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1279 | notit, notit->meta.sc, |
1280 | notit->meta.sc->id, | |
5cd6d0e5 | 1281 | event_common_context_fc); |
fdf0e7a0 | 1282 | } |
e98a2d6e PP |
1283 | |
1284 | end: | |
e98a2d6e PP |
1285 | return status; |
1286 | } | |
1287 | ||
1288 | static | |
d6e69534 PP |
1289 | enum bt_msg_iter_status read_event_common_context_continue_state( |
1290 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
1291 | { |
1292 | return read_dscope_continue_state(notit, | |
44c440bc | 1293 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN); |
e98a2d6e PP |
1294 | } |
1295 | ||
1296 | static | |
d6e69534 PP |
1297 | enum bt_msg_iter_status read_event_spec_context_begin_state( |
1298 | struct bt_msg_iter *notit) | |
e98a2d6e | 1299 | { |
d6e69534 | 1300 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 1301 | struct ctf_field_class *event_spec_context_fc; |
e98a2d6e | 1302 | |
5cd6d0e5 PP |
1303 | event_spec_context_fc = notit->meta.ec->spec_context_fc; |
1304 | if (!event_spec_context_fc) { | |
835b2d10 | 1305 | notit->state = STATE_DSCOPE_EVENT_PAYLOAD_BEGIN; |
e98a2d6e PP |
1306 | goto end; |
1307 | } | |
fdf0e7a0 | 1308 | |
5cd6d0e5 | 1309 | if (event_spec_context_fc->in_ir) { |
44c440bc | 1310 | BT_ASSERT(!notit->dscopes.event_spec_context); |
e5be10ef | 1311 | notit->dscopes.event_spec_context = |
40f4ba76 | 1312 | bt_event_borrow_specific_context_field( |
e5be10ef | 1313 | notit->event); |
44c440bc PP |
1314 | BT_ASSERT(notit->dscopes.event_spec_context); |
1315 | } | |
1316 | ||
1317 | BT_LOGV("Decoding event specific context field: " | |
fdf0e7a0 PP |
1318 | "notit-addr=%p, event-class-addr=%p, " |
1319 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
5cd6d0e5 | 1320 | "fc-addr=%p", |
44c440bc PP |
1321 | notit, notit->meta.ec, |
1322 | notit->meta.ec->name->str, | |
1323 | notit->meta.ec->id, | |
5cd6d0e5 PP |
1324 | event_spec_context_fc); |
1325 | status = read_dscope_begin_state(notit, event_spec_context_fc, | |
e98a2d6e | 1326 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, |
44c440bc PP |
1327 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE, |
1328 | notit->dscopes.event_spec_context); | |
fdf0e7a0 | 1329 | if (status < 0) { |
44c440bc | 1330 | BT_LOGW("Cannot decode event specific context field: " |
fdf0e7a0 PP |
1331 | "notit-addr=%p, event-class-addr=%p, " |
1332 | "event-class-name=\"%s\", " | |
5cd6d0e5 | 1333 | "event-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1334 | notit, notit->meta.ec, |
1335 | notit->meta.ec->name->str, | |
1336 | notit->meta.ec->id, | |
5cd6d0e5 | 1337 | event_spec_context_fc); |
fdf0e7a0 | 1338 | } |
e98a2d6e PP |
1339 | |
1340 | end: | |
e98a2d6e PP |
1341 | return status; |
1342 | } | |
1343 | ||
1344 | static | |
d6e69534 PP |
1345 | enum bt_msg_iter_status read_event_spec_context_continue_state( |
1346 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
1347 | { |
1348 | return read_dscope_continue_state(notit, | |
1349 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN); | |
1350 | } | |
1351 | ||
1352 | static | |
d6e69534 PP |
1353 | enum bt_msg_iter_status read_event_payload_begin_state( |
1354 | struct bt_msg_iter *notit) | |
e98a2d6e | 1355 | { |
d6e69534 | 1356 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 1357 | struct ctf_field_class *event_payload_fc; |
e98a2d6e | 1358 | |
5cd6d0e5 PP |
1359 | event_payload_fc = notit->meta.ec->payload_fc; |
1360 | if (!event_payload_fc) { | |
d6e69534 | 1361 | notit->state = STATE_EMIT_MSG_EVENT; |
e98a2d6e PP |
1362 | goto end; |
1363 | } | |
1364 | ||
5cd6d0e5 | 1365 | if (event_payload_fc->in_ir) { |
44c440bc | 1366 | BT_ASSERT(!notit->dscopes.event_payload); |
e5be10ef | 1367 | notit->dscopes.event_payload = |
40f4ba76 | 1368 | bt_event_borrow_payload_field( |
e5be10ef | 1369 | notit->event); |
44c440bc PP |
1370 | BT_ASSERT(notit->dscopes.event_payload); |
1371 | } | |
1372 | ||
fdf0e7a0 PP |
1373 | BT_LOGV("Decoding event payload field: " |
1374 | "notit-addr=%p, event-class-addr=%p, " | |
1375 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
5cd6d0e5 | 1376 | "fc-addr=%p", |
44c440bc PP |
1377 | notit, notit->meta.ec, |
1378 | notit->meta.ec->name->str, | |
1379 | notit->meta.ec->id, | |
5cd6d0e5 PP |
1380 | event_payload_fc); |
1381 | status = read_dscope_begin_state(notit, event_payload_fc, | |
d6e69534 | 1382 | STATE_EMIT_MSG_EVENT, |
e98a2d6e | 1383 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, |
312c056a | 1384 | notit->dscopes.event_payload); |
fdf0e7a0 PP |
1385 | if (status < 0) { |
1386 | BT_LOGW("Cannot decode event payload field: " | |
1387 | "notit-addr=%p, event-class-addr=%p, " | |
1388 | "event-class-name=\"%s\", " | |
5cd6d0e5 | 1389 | "event-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1390 | notit, notit->meta.ec, |
1391 | notit->meta.ec->name->str, | |
1392 | notit->meta.ec->id, | |
5cd6d0e5 | 1393 | event_payload_fc); |
fdf0e7a0 | 1394 | } |
e98a2d6e PP |
1395 | |
1396 | end: | |
e98a2d6e PP |
1397 | return status; |
1398 | } | |
1399 | ||
1400 | static | |
d6e69534 PP |
1401 | enum bt_msg_iter_status read_event_payload_continue_state( |
1402 | struct bt_msg_iter *notit) | |
e98a2d6e | 1403 | { |
d6e69534 | 1404 | return read_dscope_continue_state(notit, STATE_EMIT_MSG_EVENT); |
e98a2d6e PP |
1405 | } |
1406 | ||
1407 | static | |
fc917f65 | 1408 | enum bt_msg_iter_status skip_packet_padding_state(struct bt_msg_iter *notit) |
e98a2d6e | 1409 | { |
d6e69534 | 1410 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e PP |
1411 | size_t bits_to_skip; |
1412 | ||
44c440bc PP |
1413 | BT_ASSERT(notit->cur_exp_packet_total_size > 0); |
1414 | bits_to_skip = notit->cur_exp_packet_total_size - packet_at(notit); | |
e98a2d6e PP |
1415 | if (bits_to_skip == 0) { |
1416 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1417 | goto end; | |
1418 | } else { | |
1419 | size_t bits_to_consume; | |
fdf0e7a0 PP |
1420 | |
1421 | BT_LOGV("Trying to skip %zu bits of padding: notit-addr=%p, size=%zu", | |
1422 | bits_to_skip, notit, bits_to_skip); | |
e98a2d6e | 1423 | status = buf_ensure_available_bits(notit); |
d6e69534 | 1424 | if (status != BT_MSG_ITER_STATUS_OK) { |
e98a2d6e PP |
1425 | goto end; |
1426 | } | |
1427 | ||
1428 | bits_to_consume = MIN(buf_available_bits(notit), bits_to_skip); | |
fdf0e7a0 PP |
1429 | BT_LOGV("Skipping %zu bits of padding: notit-addr=%p, size=%zu", |
1430 | bits_to_consume, notit, bits_to_consume); | |
e98a2d6e | 1431 | buf_consume_bits(notit, bits_to_consume); |
44c440bc PP |
1432 | bits_to_skip = notit->cur_exp_packet_total_size - |
1433 | packet_at(notit); | |
e98a2d6e PP |
1434 | if (bits_to_skip == 0) { |
1435 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1436 | goto end; | |
1437 | } | |
1438 | } | |
1439 | ||
1440 | end: | |
1441 | return status; | |
1442 | } | |
1443 | ||
495490c5 PP |
1444 | static |
1445 | enum bt_msg_iter_status check_emit_msg_stream_beginning_state( | |
1446 | struct bt_msg_iter *notit) | |
1447 | { | |
1448 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; | |
1449 | ||
1450 | if (notit->set_stream) { | |
1451 | status = set_current_stream(notit); | |
1452 | if (status != BT_MSG_ITER_STATUS_OK) { | |
1453 | goto end; | |
1454 | } | |
1455 | } | |
1456 | ||
1457 | if (notit->emit_stream_begin_msg) { | |
1458 | notit->state = STATE_EMIT_MSG_STREAM_BEGINNING; | |
1459 | } else { | |
1460 | /* Stream's first packet */ | |
1461 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS; | |
1462 | } | |
1463 | ||
1464 | end: | |
1465 | return status; | |
1466 | } | |
1467 | ||
1468 | static | |
1469 | enum bt_msg_iter_status check_emit_msg_discarded_events( | |
1470 | struct bt_msg_iter *notit) | |
1471 | { | |
1472 | notit->state = STATE_EMIT_MSG_DISCARDED_EVENTS; | |
1473 | ||
1474 | if (notit->prev_packet_snapshots.discarded_events == UINT64_C(-1)) { | |
1475 | if (notit->snapshots.discarded_events == 0 || | |
1476 | notit->snapshots.discarded_events == UINT64_C(-1)) { | |
1477 | /* | |
1478 | * Stream's first packet with no discarded | |
1479 | * events or no information about discarded | |
1480 | * events: do not emit. | |
1481 | */ | |
1482 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; | |
1483 | } | |
1484 | } else { | |
1485 | /* | |
1486 | * If the previous packet has a value for this counter, | |
1487 | * then this counter is defined for the whole stream. | |
1488 | */ | |
1489 | BT_ASSERT(notit->snapshots.discarded_events != UINT64_C(-1)); | |
1490 | ||
1491 | if (notit->snapshots.discarded_events - | |
1492 | notit->prev_packet_snapshots.discarded_events == 0) { | |
1493 | /* | |
1494 | * No discarded events since previous packet: do | |
1495 | * not emit. | |
1496 | */ | |
1497 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; | |
1498 | } | |
1499 | } | |
1500 | ||
1501 | return BT_MSG_ITER_STATUS_OK; | |
1502 | } | |
1503 | ||
1504 | static | |
1505 | enum bt_msg_iter_status check_emit_msg_discarded_packets( | |
1506 | struct bt_msg_iter *notit) | |
1507 | { | |
1508 | notit->state = STATE_EMIT_MSG_DISCARDED_PACKETS; | |
1509 | ||
1510 | if (notit->prev_packet_snapshots.packets == UINT64_C(-1)) { | |
1511 | /* | |
1512 | * Stream's first packet or no information about | |
1513 | * discarded packets: do not emit. In other words, if | |
1514 | * this is the first packet and its sequence number is | |
1515 | * not 0, do not consider that packets were previously | |
1516 | * lost: we might be reading a partial stream (LTTng | |
1517 | * snapshot for example). | |
1518 | */ | |
1519 | notit->state = STATE_EMIT_MSG_PACKET_BEGINNING; | |
1520 | } else { | |
1521 | /* | |
1522 | * If the previous packet has a value for this counter, | |
1523 | * then this counter is defined for the whole stream. | |
1524 | */ | |
1525 | BT_ASSERT(notit->snapshots.packets != UINT64_C(-1)); | |
1526 | ||
1527 | if (notit->snapshots.packets - | |
1528 | notit->prev_packet_snapshots.packets <= 1) { | |
1529 | /* | |
1530 | * No discarded packets since previous packet: | |
1531 | * do not emit. | |
1532 | */ | |
1533 | notit->state = STATE_EMIT_MSG_PACKET_BEGINNING; | |
1534 | } | |
1535 | } | |
1536 | ||
1537 | return BT_MSG_ITER_STATUS_OK; | |
1538 | } | |
1539 | ||
1540 | static | |
1541 | enum bt_msg_iter_status check_emit_msg_stream_activity_end( | |
1542 | struct bt_msg_iter *notit) | |
1543 | { | |
1544 | if (notit->emit_stream_end_msg) { | |
1545 | notit->state = STATE_EMIT_MSG_STREAM_ACTIVITY_END; | |
1546 | } else { | |
1547 | notit->state = STATE_DONE; | |
1548 | } | |
1549 | ||
1550 | return BT_MSG_ITER_STATUS_OK; | |
1551 | } | |
1552 | ||
e98a2d6e | 1553 | static inline |
d6e69534 | 1554 | enum bt_msg_iter_status handle_state(struct bt_msg_iter *notit) |
e98a2d6e | 1555 | { |
d6e69534 | 1556 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
fdf0e7a0 | 1557 | const enum state state = notit->state; |
e98a2d6e | 1558 | |
fdf0e7a0 PP |
1559 | BT_LOGV("Handling state: notit-addr=%p, state=%s", |
1560 | notit, state_string(state)); | |
e98a2d6e PP |
1561 | |
1562 | // TODO: optimalize! | |
fdf0e7a0 | 1563 | switch (state) { |
e98a2d6e PP |
1564 | case STATE_INIT: |
1565 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1566 | break; | |
1567 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
1568 | status = read_packet_header_begin_state(notit); | |
1569 | break; | |
1570 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
1571 | status = read_packet_header_continue_state(notit); | |
1572 | break; | |
1573 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
1574 | status = after_packet_header_state(notit); | |
1575 | break; | |
1576 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
1577 | status = read_packet_context_begin_state(notit); | |
1578 | break; | |
1579 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
1580 | status = read_packet_context_continue_state(notit); | |
1581 | break; | |
1582 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
1583 | status = after_packet_context_state(notit); | |
1584 | break; | |
495490c5 PP |
1585 | case STATE_CHECK_EMIT_MSG_STREAM_BEGINNING: |
1586 | status = check_emit_msg_stream_beginning_state(notit); | |
1587 | break; | |
fc917f65 PP |
1588 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
1589 | notit->state = STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING; | |
1590 | break; | |
1591 | case STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING: | |
495490c5 PP |
1592 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS; |
1593 | break; | |
1594 | case STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS: | |
1595 | status = check_emit_msg_discarded_events(notit); | |
1596 | break; | |
1597 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
1598 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; | |
1599 | break; | |
1600 | case STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS: | |
1601 | status = check_emit_msg_discarded_packets(notit); | |
1602 | break; | |
1603 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
fc917f65 | 1604 | notit->state = STATE_EMIT_MSG_PACKET_BEGINNING; |
f42867e2 | 1605 | break; |
fc917f65 | 1606 | case STATE_EMIT_MSG_PACKET_BEGINNING: |
44c440bc | 1607 | notit->state = STATE_DSCOPE_EVENT_HEADER_BEGIN; |
e98a2d6e | 1608 | break; |
44c440bc | 1609 | case STATE_DSCOPE_EVENT_HEADER_BEGIN: |
e98a2d6e PP |
1610 | status = read_event_header_begin_state(notit); |
1611 | break; | |
44c440bc | 1612 | case STATE_DSCOPE_EVENT_HEADER_CONTINUE: |
e98a2d6e PP |
1613 | status = read_event_header_continue_state(notit); |
1614 | break; | |
44c440bc | 1615 | case STATE_AFTER_EVENT_HEADER: |
e98a2d6e PP |
1616 | status = after_event_header_state(notit); |
1617 | break; | |
44c440bc PP |
1618 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN: |
1619 | status = read_event_common_context_begin_state(notit); | |
e98a2d6e | 1620 | break; |
44c440bc PP |
1621 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE: |
1622 | status = read_event_common_context_continue_state(notit); | |
e98a2d6e | 1623 | break; |
44c440bc PP |
1624 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN: |
1625 | status = read_event_spec_context_begin_state(notit); | |
e98a2d6e | 1626 | break; |
44c440bc PP |
1627 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE: |
1628 | status = read_event_spec_context_continue_state(notit); | |
e98a2d6e PP |
1629 | break; |
1630 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
1631 | status = read_event_payload_begin_state(notit); | |
1632 | break; | |
1633 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
1634 | status = read_event_payload_continue_state(notit); | |
1635 | break; | |
d6e69534 | 1636 | case STATE_EMIT_MSG_EVENT: |
44c440bc | 1637 | notit->state = STATE_DSCOPE_EVENT_HEADER_BEGIN; |
e98a2d6e PP |
1638 | break; |
1639 | case STATE_SKIP_PACKET_PADDING: | |
1640 | status = skip_packet_padding_state(notit); | |
1641 | break; | |
fc917f65 | 1642 | case STATE_EMIT_MSG_PACKET_END_MULTI: |
e98a2d6e PP |
1643 | notit->state = STATE_SKIP_PACKET_PADDING; |
1644 | break; | |
fc917f65 | 1645 | case STATE_EMIT_MSG_PACKET_END_SINGLE: |
495490c5 PP |
1646 | notit->state = STATE_CHECK_EMIT_MSG_STREAM_ACTIVITY_END; |
1647 | break; | |
1648 | case STATE_CHECK_EMIT_MSG_STREAM_ACTIVITY_END: | |
1649 | status = check_emit_msg_stream_activity_end(notit); | |
fc917f65 PP |
1650 | break; |
1651 | case STATE_EMIT_MSG_STREAM_ACTIVITY_END: | |
1652 | notit->state = STATE_EMIT_MSG_STREAM_END; | |
1653 | break; | |
1654 | case STATE_EMIT_MSG_STREAM_END: | |
1655 | notit->state = STATE_DONE; | |
1656 | break; | |
1657 | case STATE_DONE: | |
1658 | break; | |
fdf0e7a0 | 1659 | default: |
d6e69534 | 1660 | BT_LOGD("Unknown CTF plugin message iterator state: " |
fdf0e7a0 PP |
1661 | "notit-addr=%p, state=%d", notit, notit->state); |
1662 | abort(); | |
e98a2d6e PP |
1663 | } |
1664 | ||
fdf0e7a0 PP |
1665 | BT_LOGV("Handled state: notit-addr=%p, status=%s, " |
1666 | "prev-state=%s, cur-state=%s", | |
d6e69534 | 1667 | notit, bt_msg_iter_status_string(status), |
fdf0e7a0 | 1668 | state_string(state), state_string(notit->state)); |
e98a2d6e PP |
1669 | return status; |
1670 | } | |
1671 | ||
f42867e2 | 1672 | BT_HIDDEN |
495490c5 | 1673 | void bt_msg_iter_reset_for_next_stream_file(struct bt_msg_iter *notit) |
e98a2d6e | 1674 | { |
f6ccaed9 | 1675 | BT_ASSERT(notit); |
d6e69534 | 1676 | BT_LOGD("Resetting message iterator: addr=%p", notit); |
e98a2d6e | 1677 | stack_clear(notit->stack); |
44c440bc PP |
1678 | notit->meta.sc = NULL; |
1679 | notit->meta.ec = NULL; | |
c5b9b441 PP |
1680 | BT_PACKET_PUT_REF_AND_RESET(notit->packet); |
1681 | BT_STREAM_PUT_REF_AND_RESET(notit->stream); | |
d6e69534 | 1682 | BT_MESSAGE_PUT_REF_AND_RESET(notit->event_msg); |
312c056a PP |
1683 | release_all_dscopes(notit); |
1684 | notit->cur_dscope_field = NULL; | |
1685 | ||
312c056a | 1686 | if (notit->packet_context_field) { |
40f4ba76 | 1687 | bt_packet_context_field_release(notit->packet_context_field); |
312c056a PP |
1688 | notit->packet_context_field = NULL; |
1689 | } | |
1690 | ||
e98a2d6e PP |
1691 | notit->buf.addr = NULL; |
1692 | notit->buf.sz = 0; | |
1693 | notit->buf.at = 0; | |
2b186c3e | 1694 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
1695 | notit->buf.packet_offset = 0; |
1696 | notit->state = STATE_INIT; | |
44c440bc PP |
1697 | notit->cur_exp_packet_content_size = -1; |
1698 | notit->cur_exp_packet_total_size = -1; | |
9e0c8dbb | 1699 | notit->cur_packet_offset = -1; |
44c440bc | 1700 | notit->cur_event_class_id = -1; |
495490c5 PP |
1701 | notit->snapshots.beginning_clock = UINT64_C(-1); |
1702 | notit->snapshots.end_clock = UINT64_C(-1); | |
1703 | } | |
1704 | ||
1705 | /** | |
1706 | * Resets the internal state of a CTF message iterator. | |
1707 | */ | |
1708 | BT_HIDDEN | |
1709 | void bt_msg_iter_reset(struct bt_msg_iter *notit) | |
1710 | { | |
1711 | bt_msg_iter_reset_for_next_stream_file(notit); | |
1712 | notit->cur_stream_class_id = -1; | |
44c440bc | 1713 | notit->cur_data_stream_id = -1; |
fc917f65 PP |
1714 | notit->emit_stream_begin_msg = true; |
1715 | notit->emit_stream_end_msg = true; | |
495490c5 PP |
1716 | notit->snapshots.discarded_events = UINT64_C(-1); |
1717 | notit->snapshots.packets = UINT64_C(-1); | |
1718 | notit->prev_packet_snapshots.discarded_events = UINT64_C(-1); | |
1719 | notit->prev_packet_snapshots.packets = UINT64_C(-1); | |
1720 | notit->prev_packet_snapshots.beginning_clock = UINT64_C(-1); | |
1721 | notit->prev_packet_snapshots.end_clock = UINT64_C(-1); | |
e98a2d6e PP |
1722 | } |
1723 | ||
2cf1d51e | 1724 | static |
d6e69534 | 1725 | int bt_msg_iter_switch_packet(struct bt_msg_iter *notit) |
2cf1d51e JG |
1726 | { |
1727 | int ret = 0; | |
1728 | ||
115de887 PP |
1729 | /* |
1730 | * We don't put the stream class here because we need to make | |
d6e69534 | 1731 | * sure that all the packets processed by the same message |
115de887 PP |
1732 | * iterator refer to the same stream class (the first one). |
1733 | */ | |
f6ccaed9 | 1734 | BT_ASSERT(notit); |
312c056a | 1735 | |
44c440bc PP |
1736 | if (notit->cur_exp_packet_total_size != -1) { |
1737 | notit->cur_packet_offset += notit->cur_exp_packet_total_size; | |
9e0c8dbb | 1738 | } |
312c056a | 1739 | |
9e0c8dbb JG |
1740 | BT_LOGV("Switching packet: notit-addr=%p, cur=%zu, " |
1741 | "packet-offset=%" PRId64, notit, notit->buf.at, | |
1742 | notit->cur_packet_offset); | |
2cf1d51e | 1743 | stack_clear(notit->stack); |
44c440bc | 1744 | notit->meta.ec = NULL; |
c5b9b441 | 1745 | BT_PACKET_PUT_REF_AND_RESET(notit->packet); |
d6e69534 | 1746 | BT_MESSAGE_PUT_REF_AND_RESET(notit->event_msg); |
312c056a PP |
1747 | release_all_dscopes(notit); |
1748 | notit->cur_dscope_field = NULL; | |
2cf1d51e JG |
1749 | |
1750 | /* | |
1751 | * Adjust current buffer so that addr points to the beginning of the new | |
1752 | * packet. | |
1753 | */ | |
1754 | if (notit->buf.addr) { | |
1755 | size_t consumed_bytes = (size_t) (notit->buf.at / CHAR_BIT); | |
1756 | ||
1757 | /* Packets are assumed to start on a byte frontier. */ | |
1758 | if (notit->buf.at % CHAR_BIT) { | |
fdf0e7a0 PP |
1759 | BT_LOGW("Cannot switch packet: current position is not a multiple of 8: " |
1760 | "notit-addr=%p, cur=%zu", notit, notit->buf.at); | |
2cf1d51e JG |
1761 | ret = -1; |
1762 | goto end; | |
1763 | } | |
1764 | ||
1765 | notit->buf.addr += consumed_bytes; | |
1766 | notit->buf.sz -= consumed_bytes; | |
1767 | notit->buf.at = 0; | |
1768 | notit->buf.packet_offset = 0; | |
fdf0e7a0 PP |
1769 | BT_LOGV("Adjusted buffer: addr=%p, size=%zu", |
1770 | notit->buf.addr, notit->buf.sz); | |
2cf1d51e JG |
1771 | } |
1772 | ||
44c440bc PP |
1773 | notit->cur_exp_packet_content_size = -1; |
1774 | notit->cur_exp_packet_total_size = -1; | |
1775 | notit->cur_stream_class_id = -1; | |
1776 | notit->cur_event_class_id = -1; | |
1777 | notit->cur_data_stream_id = -1; | |
495490c5 | 1778 | notit->prev_packet_snapshots = notit->snapshots; |
44c440bc PP |
1779 | notit->snapshots.discarded_events = UINT64_C(-1); |
1780 | notit->snapshots.packets = UINT64_C(-1); | |
1781 | notit->snapshots.beginning_clock = UINT64_C(-1); | |
1782 | notit->snapshots.end_clock = UINT64_C(-1); | |
fdf0e7a0 | 1783 | |
2cf1d51e JG |
1784 | end: |
1785 | return ret; | |
1786 | } | |
1787 | ||
e98a2d6e | 1788 | static |
d6e69534 | 1789 | bt_field *borrow_next_field(struct bt_msg_iter *notit) |
e98a2d6e | 1790 | { |
b19ff26f PP |
1791 | bt_field *next_field = NULL; |
1792 | bt_field *base_field; | |
1793 | const bt_field_class *base_fc; | |
e98a2d6e PP |
1794 | size_t index; |
1795 | ||
f6ccaed9 | 1796 | BT_ASSERT(!stack_empty(notit->stack)); |
e98a2d6e PP |
1797 | index = stack_top(notit->stack)->index; |
1798 | base_field = stack_top(notit->stack)->base; | |
f6ccaed9 | 1799 | BT_ASSERT(base_field); |
40f4ba76 | 1800 | base_fc = bt_field_borrow_class_const(base_field); |
5cd6d0e5 | 1801 | BT_ASSERT(base_fc); |
e98a2d6e | 1802 | |
40f4ba76 | 1803 | switch (bt_field_class_get_type(base_fc)) { |
864cad70 | 1804 | case BT_FIELD_CLASS_TYPE_STRUCTURE: |
f42867e2 | 1805 | { |
44c440bc | 1806 | BT_ASSERT(index < |
5cd6d0e5 | 1807 | bt_field_class_structure_get_member_count( |
40f4ba76 PP |
1808 | bt_field_borrow_class_const( |
1809 | base_field))); | |
e5be10ef | 1810 | next_field = |
40f4ba76 | 1811 | bt_field_structure_borrow_member_field_by_index( |
e5be10ef | 1812 | base_field, index); |
e98a2d6e | 1813 | break; |
f42867e2 | 1814 | } |
864cad70 PP |
1815 | case BT_FIELD_CLASS_TYPE_STATIC_ARRAY: |
1816 | case BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY: | |
40f4ba76 PP |
1817 | BT_ASSERT(index < bt_field_array_get_length(base_field)); |
1818 | next_field = bt_field_array_borrow_element_field_by_index( | |
44c440bc | 1819 | base_field, index); |
e98a2d6e | 1820 | break; |
864cad70 | 1821 | case BT_FIELD_CLASS_TYPE_VARIANT: |
44c440bc | 1822 | BT_ASSERT(index == 0); |
40f4ba76 | 1823 | next_field = bt_field_variant_borrow_selected_option_field( |
44c440bc | 1824 | base_field); |
e98a2d6e PP |
1825 | break; |
1826 | default: | |
0fbb9a9f | 1827 | abort(); |
e98a2d6e PP |
1828 | } |
1829 | ||
44c440bc | 1830 | BT_ASSERT(next_field); |
e98a2d6e PP |
1831 | return next_field; |
1832 | } | |
1833 | ||
c44c3e70 | 1834 | static |
d6e69534 | 1835 | void update_default_clock(struct bt_msg_iter *notit, uint64_t new_val, |
44c440bc | 1836 | uint64_t new_val_size) |
c44c3e70 | 1837 | { |
44c440bc | 1838 | uint64_t new_val_mask; |
c44c3e70 | 1839 | uint64_t cur_value_masked; |
c44c3e70 | 1840 | |
44c440bc | 1841 | BT_ASSERT(new_val_size > 0); |
c44c3e70 JG |
1842 | |
1843 | /* | |
1844 | * Special case for a 64-bit new value, which is the limit | |
1845 | * of a clock value as of this version: overwrite the | |
1846 | * current value directly. | |
1847 | */ | |
44c440bc | 1848 | if (new_val_size == 64) { |
605e1019 | 1849 | notit->default_clock_snapshot = new_val; |
c44c3e70 JG |
1850 | goto end; |
1851 | } | |
1852 | ||
44c440bc | 1853 | new_val_mask = (1ULL << new_val_size) - 1; |
605e1019 | 1854 | cur_value_masked = notit->default_clock_snapshot & new_val_mask; |
c44c3e70 | 1855 | |
44c440bc | 1856 | if (new_val < cur_value_masked) { |
c44c3e70 JG |
1857 | /* |
1858 | * It looks like a wrap happened on the number of bits | |
1859 | * of the requested new value. Assume that the clock | |
1860 | * value wrapped only one time. | |
1861 | */ | |
605e1019 | 1862 | notit->default_clock_snapshot += new_val_mask + 1; |
c44c3e70 JG |
1863 | } |
1864 | ||
1865 | /* Clear the low bits of the current clock value. */ | |
605e1019 | 1866 | notit->default_clock_snapshot &= ~new_val_mask; |
c44c3e70 JG |
1867 | |
1868 | /* Set the low bits of the current clock value. */ | |
605e1019 | 1869 | notit->default_clock_snapshot |= new_val; |
d1e46835 | 1870 | |
c44c3e70 | 1871 | end: |
44c440bc | 1872 | BT_LOGV("Updated default clock's value from integer field's value: " |
605e1019 | 1873 | "value=%" PRIu64, notit->default_clock_snapshot); |
c44c3e70 JG |
1874 | } |
1875 | ||
1876 | static | |
5cd6d0e5 PP |
1877 | enum bt_bfcr_status bfcr_unsigned_int_cb(uint64_t value, |
1878 | struct ctf_field_class *fc, void *data) | |
c44c3e70 | 1879 | { |
d6e69534 | 1880 | struct bt_msg_iter *notit = data; |
5cd6d0e5 | 1881 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 1882 | bt_field *field = NULL; |
5cd6d0e5 | 1883 | struct ctf_field_class_int *int_fc = (void *) fc; |
c44c3e70 | 1884 | |
5cd6d0e5 PP |
1885 | BT_LOGV("Unsigned integer function called from BFCR: " |
1886 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
1887 | "fc-type=%d, fc-in-ir=%d, value=%" PRIu64, |
1888 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
312c056a | 1889 | |
5cd6d0e5 | 1890 | if (likely(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE)) { |
44c440bc | 1891 | goto update_def_clock; |
c44c3e70 JG |
1892 | } |
1893 | ||
5cd6d0e5 PP |
1894 | switch (int_fc->meaning) { |
1895 | case CTF_FIELD_CLASS_MEANING_EVENT_CLASS_ID: | |
44c440bc PP |
1896 | notit->cur_event_class_id = value; |
1897 | break; | |
5cd6d0e5 | 1898 | case CTF_FIELD_CLASS_MEANING_DATA_STREAM_ID: |
44c440bc PP |
1899 | notit->cur_data_stream_id = value; |
1900 | break; | |
5cd6d0e5 | 1901 | case CTF_FIELD_CLASS_MEANING_PACKET_BEGINNING_TIME: |
44c440bc PP |
1902 | notit->snapshots.beginning_clock = value; |
1903 | break; | |
5cd6d0e5 | 1904 | case CTF_FIELD_CLASS_MEANING_PACKET_END_TIME: |
44c440bc PP |
1905 | notit->snapshots.end_clock = value; |
1906 | break; | |
5cd6d0e5 | 1907 | case CTF_FIELD_CLASS_MEANING_STREAM_CLASS_ID: |
44c440bc PP |
1908 | notit->cur_stream_class_id = value; |
1909 | break; | |
5cd6d0e5 | 1910 | case CTF_FIELD_CLASS_MEANING_MAGIC: |
44c440bc PP |
1911 | if (value != 0xc1fc1fc1) { |
1912 | BT_LOGW("Invalid CTF magic number: notit-addr=%p, " | |
1913 | "magic=%" PRIx64, notit, value); | |
5cd6d0e5 | 1914 | status = BT_BFCR_STATUS_ERROR; |
c44c3e70 JG |
1915 | goto end; |
1916 | } | |
fdf0e7a0 | 1917 | |
44c440bc | 1918 | break; |
5cd6d0e5 | 1919 | case CTF_FIELD_CLASS_MEANING_PACKET_COUNTER_SNAPSHOT: |
44c440bc PP |
1920 | notit->snapshots.packets = value; |
1921 | break; | |
5cd6d0e5 | 1922 | case CTF_FIELD_CLASS_MEANING_DISC_EV_REC_COUNTER_SNAPSHOT: |
44c440bc PP |
1923 | notit->snapshots.discarded_events = value; |
1924 | break; | |
5cd6d0e5 | 1925 | case CTF_FIELD_CLASS_MEANING_EXP_PACKET_TOTAL_SIZE: |
44c440bc PP |
1926 | notit->cur_exp_packet_total_size = value; |
1927 | break; | |
5cd6d0e5 | 1928 | case CTF_FIELD_CLASS_MEANING_EXP_PACKET_CONTENT_SIZE: |
44c440bc PP |
1929 | notit->cur_exp_packet_content_size = value; |
1930 | break; | |
1931 | default: | |
1932 | abort(); | |
c44c3e70 JG |
1933 | } |
1934 | ||
44c440bc | 1935 | update_def_clock: |
5cd6d0e5 PP |
1936 | if (unlikely(int_fc->mapped_clock_class)) { |
1937 | update_default_clock(notit, value, int_fc->base.size); | |
44c440bc | 1938 | } |
c44c3e70 | 1939 | |
5cd6d0e5 | 1940 | if (unlikely(int_fc->storing_index >= 0)) { |
44c440bc | 1941 | g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 1942 | (uint64_t) int_fc->storing_index) = value; |
44c440bc | 1943 | } |
e98a2d6e | 1944 | |
5cd6d0e5 | 1945 | if (unlikely(!fc->in_ir)) { |
312c056a | 1946 | goto end; |
e98a2d6e PP |
1947 | } |
1948 | ||
44c440bc PP |
1949 | field = borrow_next_field(notit); |
1950 | BT_ASSERT(field); | |
40f4ba76 PP |
1951 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
1952 | BT_ASSERT(bt_field_get_class_type(field) == | |
1953 | BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER || | |
1954 | bt_field_get_class_type(field) == | |
1955 | BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION); | |
1956 | bt_field_unsigned_integer_set_value(field, value); | |
e98a2d6e | 1957 | stack_top(notit->stack)->index++; |
fdf0e7a0 | 1958 | |
312c056a | 1959 | end: |
e98a2d6e PP |
1960 | return status; |
1961 | } | |
1962 | ||
5f870343 | 1963 | static |
5cd6d0e5 PP |
1964 | enum bt_bfcr_status bfcr_unsigned_int_char_cb(uint64_t value, |
1965 | struct ctf_field_class *fc, void *data) | |
5f870343 | 1966 | { |
44c440bc | 1967 | int ret; |
d6e69534 | 1968 | struct bt_msg_iter *notit = data; |
5cd6d0e5 | 1969 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 1970 | bt_field *string_field = NULL; |
5cd6d0e5 | 1971 | struct ctf_field_class_int *int_fc = (void *) fc; |
44c440bc | 1972 | char str[2] = {'\0', '\0'}; |
5f870343 | 1973 | |
5cd6d0e5 PP |
1974 | BT_LOGV("Unsigned integer character function called from BFCR: " |
1975 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
1976 | "fc-type=%d, fc-in-ir=%d, value=%" PRIu64, |
1977 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
5cd6d0e5 PP |
1978 | BT_ASSERT(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE); |
1979 | BT_ASSERT(!int_fc->mapped_clock_class); | |
1980 | BT_ASSERT(int_fc->storing_index < 0); | |
312c056a | 1981 | |
5cd6d0e5 | 1982 | if (unlikely(!fc->in_ir)) { |
44c440bc PP |
1983 | goto end; |
1984 | } | |
5f870343 | 1985 | |
44c440bc | 1986 | if (notit->done_filling_string) { |
5f870343 JG |
1987 | goto end; |
1988 | } | |
1989 | ||
44c440bc PP |
1990 | if (value == 0) { |
1991 | notit->done_filling_string = true; | |
5f870343 JG |
1992 | goto end; |
1993 | } | |
1994 | ||
44c440bc | 1995 | string_field = stack_top(notit->stack)->base; |
40f4ba76 PP |
1996 | BT_ASSERT(bt_field_get_class_type(string_field) == |
1997 | BT_FIELD_CLASS_TYPE_STRING); | |
44c440bc PP |
1998 | |
1999 | /* Append character */ | |
2000 | str[0] = (char) value; | |
40f4ba76 | 2001 | ret = bt_field_string_append_with_length(string_field, str, 1); |
44c440bc PP |
2002 | if (ret) { |
2003 | BT_LOGE("Cannot append character to string field's value: " | |
2004 | "notit-addr=%p, field-addr=%p, ret=%d", | |
2005 | notit, string_field, ret); | |
5cd6d0e5 | 2006 | status = BT_BFCR_STATUS_ERROR; |
44c440bc PP |
2007 | goto end; |
2008 | } | |
312c056a | 2009 | |
5f870343 JG |
2010 | end: |
2011 | return status; | |
2012 | } | |
2013 | ||
2014 | static | |
5cd6d0e5 PP |
2015 | enum bt_bfcr_status bfcr_signed_int_cb(int64_t value, |
2016 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2017 | { |
5cd6d0e5 | 2018 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2019 | bt_field *field = NULL; |
d6e69534 | 2020 | struct bt_msg_iter *notit = data; |
5cd6d0e5 | 2021 | struct ctf_field_class_int *int_fc = (void *) fc; |
e98a2d6e | 2022 | |
5cd6d0e5 PP |
2023 | BT_LOGV("Signed integer function called from BFCR: " |
2024 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2025 | "fc-type=%d, fc-in-ir=%d, value=%" PRId64, |
2026 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
5cd6d0e5 | 2027 | BT_ASSERT(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE); |
44c440bc | 2028 | |
5cd6d0e5 | 2029 | if (unlikely(int_fc->storing_index >= 0)) { |
44c440bc | 2030 | g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 2031 | (uint64_t) int_fc->storing_index) = (uint64_t) value; |
44c440bc PP |
2032 | } |
2033 | ||
5cd6d0e5 | 2034 | if (unlikely(!fc->in_ir)) { |
312c056a | 2035 | goto end; |
e98a2d6e PP |
2036 | } |
2037 | ||
44c440bc PP |
2038 | field = borrow_next_field(notit); |
2039 | BT_ASSERT(field); | |
40f4ba76 PP |
2040 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
2041 | BT_ASSERT(bt_field_get_class_type(field) == | |
2042 | BT_FIELD_CLASS_TYPE_SIGNED_INTEGER || | |
2043 | bt_field_get_class_type(field) == | |
2044 | BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION); | |
2045 | bt_field_signed_integer_set_value(field, value); | |
e98a2d6e | 2046 | stack_top(notit->stack)->index++; |
fdf0e7a0 | 2047 | |
312c056a | 2048 | end: |
e98a2d6e PP |
2049 | return status; |
2050 | } | |
2051 | ||
2052 | static | |
5cd6d0e5 PP |
2053 | enum bt_bfcr_status bfcr_floating_point_cb(double value, |
2054 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2055 | { |
5cd6d0e5 | 2056 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2057 | bt_field *field = NULL; |
d6e69534 | 2058 | struct bt_msg_iter *notit = data; |
e98a2d6e | 2059 | |
5cd6d0e5 PP |
2060 | BT_LOGV("Floating point number function called from BFCR: " |
2061 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2062 | "fc-type=%d, fc-in-ir=%d, value=%f", |
2063 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
41693723 PP |
2064 | |
2065 | if (unlikely(!fc->in_ir)) { | |
2066 | goto end; | |
2067 | } | |
2068 | ||
312c056a | 2069 | field = borrow_next_field(notit); |
44c440bc | 2070 | BT_ASSERT(field); |
40f4ba76 PP |
2071 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
2072 | BT_ASSERT(bt_field_get_class_type(field) == | |
2073 | BT_FIELD_CLASS_TYPE_REAL); | |
2074 | bt_field_real_set_value(field, value); | |
e98a2d6e | 2075 | stack_top(notit->stack)->index++; |
41693723 PP |
2076 | |
2077 | end: | |
e98a2d6e PP |
2078 | return status; |
2079 | } | |
2080 | ||
2081 | static | |
5cd6d0e5 PP |
2082 | enum bt_bfcr_status bfcr_string_begin_cb( |
2083 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2084 | { |
b19ff26f | 2085 | bt_field *field = NULL; |
d6e69534 | 2086 | struct bt_msg_iter *notit = data; |
e98a2d6e PP |
2087 | int ret; |
2088 | ||
5cd6d0e5 PP |
2089 | BT_LOGV("String (beginning) function called from BFCR: " |
2090 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2091 | "fc-type=%d, fc-in-ir=%d", |
2092 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
e98a2d6e | 2093 | |
41693723 PP |
2094 | if (unlikely(!fc->in_ir)) { |
2095 | goto end; | |
2096 | } | |
2097 | ||
44c440bc PP |
2098 | field = borrow_next_field(notit); |
2099 | BT_ASSERT(field); | |
40f4ba76 PP |
2100 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
2101 | BT_ASSERT(bt_field_get_class_type(field) == | |
2102 | BT_FIELD_CLASS_TYPE_STRING); | |
2103 | ret = bt_field_string_clear(field); | |
312c056a PP |
2104 | BT_ASSERT(ret == 0); |
2105 | ||
e98a2d6e | 2106 | /* |
5cd6d0e5 PP |
2107 | * Push on stack. Not a compound class per se, but we know that |
2108 | * only bfcr_string_cb() may be called between this call and a | |
2109 | * subsequent call to bfcr_string_end_cb(). | |
e98a2d6e | 2110 | */ |
44c440bc | 2111 | stack_push(notit->stack, field); |
41693723 PP |
2112 | |
2113 | end: | |
5cd6d0e5 | 2114 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2115 | } |
2116 | ||
2117 | static | |
5cd6d0e5 PP |
2118 | enum bt_bfcr_status bfcr_string_cb(const char *value, |
2119 | size_t len, struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2120 | { |
5cd6d0e5 | 2121 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2122 | bt_field *field = NULL; |
d6e69534 | 2123 | struct bt_msg_iter *notit = data; |
e98a2d6e PP |
2124 | int ret; |
2125 | ||
5cd6d0e5 PP |
2126 | BT_LOGV("String (substring) function called from BFCR: " |
2127 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2128 | "fc-type=%d, fc-in-ir=%d, string-length=%zu", |
2129 | notit, notit->bfcr, fc, fc->type, fc->in_ir, | |
fdf0e7a0 | 2130 | len); |
41693723 PP |
2131 | |
2132 | if (unlikely(!fc->in_ir)) { | |
2133 | goto end; | |
2134 | } | |
2135 | ||
e98a2d6e | 2136 | field = stack_top(notit->stack)->base; |
f6ccaed9 | 2137 | BT_ASSERT(field); |
e98a2d6e | 2138 | |
312c056a | 2139 | /* Append current substring */ |
40f4ba76 | 2140 | ret = bt_field_string_append_with_length(field, value, len); |
e98a2d6e | 2141 | if (ret) { |
fdf0e7a0 PP |
2142 | BT_LOGE("Cannot append substring to string field's value: " |
2143 | "notit-addr=%p, field-addr=%p, string-length=%zu, " | |
2144 | "ret=%d", notit, field, len, ret); | |
5cd6d0e5 | 2145 | status = BT_BFCR_STATUS_ERROR; |
e98a2d6e PP |
2146 | goto end; |
2147 | } | |
2148 | ||
2149 | end: | |
2150 | return status; | |
2151 | } | |
2152 | ||
2153 | static | |
5cd6d0e5 PP |
2154 | enum bt_bfcr_status bfcr_string_end_cb( |
2155 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2156 | { |
d6e69534 | 2157 | struct bt_msg_iter *notit = data; |
e98a2d6e | 2158 | |
5cd6d0e5 PP |
2159 | BT_LOGV("String (end) function called from BFCR: " |
2160 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2161 | "fc-type=%d, fc-in-ir=%d", |
2162 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
41693723 PP |
2163 | |
2164 | if (unlikely(!fc->in_ir)) { | |
2165 | goto end; | |
2166 | } | |
fdf0e7a0 | 2167 | |
e98a2d6e PP |
2168 | /* Pop string field */ |
2169 | stack_pop(notit->stack); | |
2170 | ||
2171 | /* Go to next field */ | |
2172 | stack_top(notit->stack)->index++; | |
41693723 PP |
2173 | |
2174 | end: | |
5cd6d0e5 | 2175 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2176 | } |
2177 | ||
5cd6d0e5 PP |
2178 | enum bt_bfcr_status bfcr_compound_begin_cb( |
2179 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2180 | { |
d6e69534 | 2181 | struct bt_msg_iter *notit = data; |
b19ff26f | 2182 | bt_field *field; |
e98a2d6e | 2183 | |
5cd6d0e5 PP |
2184 | BT_LOGV("Compound (beginning) function called from BFCR: " |
2185 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2186 | "fc-type=%d, fc-in-ir=%d", |
2187 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
44c440bc | 2188 | |
5cd6d0e5 | 2189 | if (!fc->in_ir) { |
44c440bc PP |
2190 | goto end; |
2191 | } | |
fdf0e7a0 | 2192 | |
312c056a | 2193 | /* Borrow field */ |
e98a2d6e | 2194 | if (stack_empty(notit->stack)) { |
312c056a PP |
2195 | /* Root: already set by read_dscope_begin_state() */ |
2196 | field = notit->cur_dscope_field; | |
e98a2d6e | 2197 | } else { |
312c056a | 2198 | field = borrow_next_field(notit); |
44c440bc | 2199 | BT_ASSERT(field); |
e98a2d6e PP |
2200 | } |
2201 | ||
2202 | /* Push field */ | |
f6ccaed9 | 2203 | BT_ASSERT(field); |
40f4ba76 | 2204 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
44c440bc PP |
2205 | stack_push(notit->stack, field); |
2206 | ||
2207 | /* | |
5cd6d0e5 | 2208 | * Change BFCR "unsigned int" callback if it's a text |
44c440bc PP |
2209 | * array/sequence. |
2210 | */ | |
864cad70 PP |
2211 | if (fc->type == CTF_FIELD_CLASS_TYPE_ARRAY || |
2212 | fc->type == CTF_FIELD_CLASS_TYPE_SEQUENCE) { | |
5cd6d0e5 | 2213 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
44c440bc | 2214 | |
5cd6d0e5 | 2215 | if (array_fc->is_text) { |
44c440bc PP |
2216 | int ret; |
2217 | ||
40f4ba76 PP |
2218 | BT_ASSERT(bt_field_get_class_type(field) == |
2219 | BT_FIELD_CLASS_TYPE_STRING); | |
44c440bc | 2220 | notit->done_filling_string = false; |
40f4ba76 | 2221 | ret = bt_field_string_clear(field); |
44c440bc | 2222 | BT_ASSERT(ret == 0); |
5cd6d0e5 PP |
2223 | bt_bfcr_set_unsigned_int_cb(notit->bfcr, |
2224 | bfcr_unsigned_int_char_cb); | |
44c440bc | 2225 | } |
e98a2d6e PP |
2226 | } |
2227 | ||
2228 | end: | |
5cd6d0e5 | 2229 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2230 | } |
2231 | ||
5cd6d0e5 PP |
2232 | enum bt_bfcr_status bfcr_compound_end_cb( |
2233 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2234 | { |
d6e69534 | 2235 | struct bt_msg_iter *notit = data; |
e98a2d6e | 2236 | |
5cd6d0e5 PP |
2237 | BT_LOGV("Compound (end) function called from BFCR: " |
2238 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2239 | "fc-type=%d, fc-in-ir=%d", |
2240 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
e98a2d6e | 2241 | |
5cd6d0e5 | 2242 | if (!fc->in_ir) { |
e98a2d6e PP |
2243 | goto end; |
2244 | } | |
2245 | ||
44c440bc | 2246 | BT_ASSERT(!stack_empty(notit->stack)); |
40f4ba76 | 2247 | BT_ASSERT(bt_field_borrow_class_const(stack_top(notit->stack)->base) == |
5cd6d0e5 | 2248 | fc->ir_fc); |
e98a2d6e | 2249 | |
44c440bc | 2250 | /* |
5cd6d0e5 | 2251 | * Reset BFCR "unsigned int" callback if it's a text |
44c440bc PP |
2252 | * array/sequence. |
2253 | */ | |
864cad70 PP |
2254 | if (fc->type == CTF_FIELD_CLASS_TYPE_ARRAY || |
2255 | fc->type == CTF_FIELD_CLASS_TYPE_SEQUENCE) { | |
5cd6d0e5 | 2256 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
44c440bc | 2257 | |
5cd6d0e5 | 2258 | if (array_fc->is_text) { |
864cad70 | 2259 | BT_ASSERT(bt_field_get_class_type( |
40f4ba76 | 2260 | stack_top(notit->stack)->base) == |
e5be10ef | 2261 | BT_FIELD_CLASS_TYPE_STRING); |
5cd6d0e5 PP |
2262 | bt_bfcr_set_unsigned_int_cb(notit->bfcr, |
2263 | bfcr_unsigned_int_cb); | |
e98a2d6e | 2264 | } |
44c440bc | 2265 | } |
e98a2d6e | 2266 | |
44c440bc PP |
2267 | /* Pop stack */ |
2268 | stack_pop(notit->stack); | |
e98a2d6e | 2269 | |
44c440bc PP |
2270 | /* If the stack is not empty, increment the base's index */ |
2271 | if (!stack_empty(notit->stack)) { | |
2272 | stack_top(notit->stack)->index++; | |
e98a2d6e PP |
2273 | } |
2274 | ||
2275 | end: | |
5cd6d0e5 | 2276 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2277 | } |
2278 | ||
2279 | static | |
5cd6d0e5 | 2280 | int64_t bfcr_get_sequence_length_cb(struct ctf_field_class *fc, void *data) |
e98a2d6e | 2281 | { |
b19ff26f | 2282 | bt_field *seq_field; |
d6e69534 | 2283 | struct bt_msg_iter *notit = data; |
5cd6d0e5 | 2284 | struct ctf_field_class_sequence *seq_fc = (void *) fc; |
44c440bc PP |
2285 | int64_t length = -1; |
2286 | int ret; | |
e98a2d6e | 2287 | |
44c440bc | 2288 | length = (uint64_t) g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 2289 | seq_fc->stored_length_index); |
fdf0e7a0 | 2290 | seq_field = stack_top(notit->stack)->base; |
44c440bc | 2291 | BT_ASSERT(seq_field); |
40f4ba76 | 2292 | ret = bt_field_dynamic_array_set_length(seq_field, (uint64_t) length); |
44c440bc PP |
2293 | if (ret) { |
2294 | BT_LOGE("Cannot set dynamic array field's length field: " | |
2295 | "notit-addr=%p, field-addr=%p, " | |
2296 | "length=%" PRIu64, notit, seq_field, length); | |
2cf1d51e | 2297 | } |
fdf0e7a0 | 2298 | |
44c440bc | 2299 | return length; |
e98a2d6e PP |
2300 | } |
2301 | ||
2302 | static | |
5cd6d0e5 PP |
2303 | struct ctf_field_class *bfcr_borrow_variant_selected_field_class_cb( |
2304 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2305 | { |
312c056a | 2306 | int ret; |
44c440bc PP |
2307 | uint64_t i; |
2308 | int64_t option_index = -1; | |
d6e69534 | 2309 | struct bt_msg_iter *notit = data; |
5cd6d0e5 PP |
2310 | struct ctf_field_class_variant *var_fc = (void *) fc; |
2311 | struct ctf_named_field_class *selected_option = NULL; | |
2312 | struct ctf_field_class *ret_fc = NULL; | |
44c440bc PP |
2313 | union { |
2314 | uint64_t u; | |
2315 | int64_t i; | |
2316 | } tag; | |
2317 | ||
2318 | /* Get variant's tag */ | |
2319 | tag.u = g_array_index(notit->stored_values, uint64_t, | |
5cd6d0e5 | 2320 | var_fc->stored_tag_index); |
e98a2d6e PP |
2321 | |
2322 | /* | |
44c440bc | 2323 | * Check each range to find the selected option's index. |
e98a2d6e | 2324 | */ |
5cd6d0e5 PP |
2325 | if (var_fc->tag_fc->base.is_signed) { |
2326 | for (i = 0; i < var_fc->ranges->len; i++) { | |
2327 | struct ctf_field_class_variant_range *range = | |
2328 | ctf_field_class_variant_borrow_range_by_index( | |
2329 | var_fc, i); | |
44c440bc PP |
2330 | |
2331 | if (tag.i >= range->range.lower.i && | |
2332 | tag.i <= range->range.upper.i) { | |
2333 | option_index = (int64_t) range->option_index; | |
2334 | break; | |
2335 | } | |
2336 | } | |
312c056a | 2337 | } else { |
5cd6d0e5 PP |
2338 | for (i = 0; i < var_fc->ranges->len; i++) { |
2339 | struct ctf_field_class_variant_range *range = | |
2340 | ctf_field_class_variant_borrow_range_by_index( | |
2341 | var_fc, i); | |
44c440bc PP |
2342 | |
2343 | if (tag.u >= range->range.lower.u && | |
2344 | tag.u <= range->range.upper.u) { | |
2345 | option_index = (int64_t) range->option_index; | |
2346 | break; | |
2347 | } | |
2348 | } | |
312c056a PP |
2349 | } |
2350 | ||
44c440bc | 2351 | if (option_index < 0) { |
5cd6d0e5 PP |
2352 | BT_LOGW("Cannot find variant field class's option: " |
2353 | "notit-addr=%p, var-fc-addr=%p, u-tag=%" PRIu64 ", " | |
2354 | "i-tag=%" PRId64, notit, var_fc, tag.u, tag.i); | |
e98a2d6e PP |
2355 | goto end; |
2356 | } | |
2357 | ||
5cd6d0e5 PP |
2358 | selected_option = ctf_field_class_variant_borrow_option_by_index( |
2359 | var_fc, (uint64_t) option_index); | |
e98a2d6e | 2360 | |
5cd6d0e5 | 2361 | if (selected_option->fc->in_ir) { |
b19ff26f | 2362 | bt_field *var_field = stack_top(notit->stack)->base; |
1556a1af | 2363 | |
40f4ba76 | 2364 | ret = bt_field_variant_select_option_field( |
e5be10ef | 2365 | var_field, option_index); |
e22b45d0 | 2366 | if (ret) { |
44c440bc PP |
2367 | BT_LOGW("Cannot select variant field's option field: " |
2368 | "notit-addr=%p, var-field-addr=%p, " | |
2369 | "opt-index=%" PRId64, notit, var_field, | |
2370 | option_index); | |
1556a1af JG |
2371 | goto end; |
2372 | } | |
af87daef PP |
2373 | } |
2374 | ||
5cd6d0e5 | 2375 | ret_fc = selected_option->fc; |
e22b45d0 | 2376 | |
af87daef | 2377 | end: |
5cd6d0e5 | 2378 | return ret_fc; |
44c440bc PP |
2379 | } |
2380 | ||
f42867e2 | 2381 | static |
fc917f65 | 2382 | void create_msg_stream_beginning(struct bt_msg_iter *notit, |
d6e69534 | 2383 | bt_message **message) |
f42867e2 | 2384 | { |
d6e69534 | 2385 | bt_message *ret = NULL; |
f42867e2 | 2386 | |
f42867e2 | 2387 | BT_ASSERT(notit->stream); |
d6e69534 PP |
2388 | BT_ASSERT(notit->msg_iter); |
2389 | ret = bt_message_stream_beginning_create(notit->msg_iter, | |
f0010051 | 2390 | notit->stream); |
f42867e2 | 2391 | if (!ret) { |
d6e69534 | 2392 | BT_LOGE("Cannot create stream beginning message: " |
f42867e2 PP |
2393 | "notit-addr=%p, stream-addr=%p", |
2394 | notit, notit->stream); | |
2395 | return; | |
2396 | } | |
2397 | ||
d6e69534 | 2398 | *message = ret; |
f42867e2 PP |
2399 | } |
2400 | ||
2401 | static | |
fc917f65 PP |
2402 | void create_msg_stream_activity_beginning(struct bt_msg_iter *notit, |
2403 | bt_message **message) | |
2404 | { | |
2405 | bt_message *ret = NULL; | |
2406 | ||
2407 | BT_ASSERT(notit->stream); | |
2408 | BT_ASSERT(notit->msg_iter); | |
2409 | ret = bt_message_stream_activity_beginning_create(notit->msg_iter, | |
2410 | notit->stream); | |
2411 | if (!ret) { | |
2412 | BT_LOGE("Cannot create stream activity beginning message: " | |
2413 | "notit-addr=%p, stream-addr=%p", | |
2414 | notit, notit->stream); | |
2415 | return; | |
2416 | } | |
2417 | ||
2418 | *message = ret; | |
2419 | } | |
2420 | ||
2421 | static | |
2422 | void create_msg_stream_activity_end(struct bt_msg_iter *notit, | |
d6e69534 | 2423 | bt_message **message) |
fc917f65 PP |
2424 | { |
2425 | bt_message *ret = NULL; | |
2426 | ||
2427 | if (!notit->stream) { | |
2428 | BT_LOGE("Cannot create stream for stream message: " | |
2429 | "notit-addr=%p", notit); | |
2430 | return; | |
2431 | } | |
2432 | ||
2433 | BT_ASSERT(notit->stream); | |
2434 | BT_ASSERT(notit->msg_iter); | |
2435 | ret = bt_message_stream_activity_end_create(notit->msg_iter, | |
2436 | notit->stream); | |
2437 | if (!ret) { | |
2438 | BT_LOGE("Cannot create stream activity end message: " | |
2439 | "notit-addr=%p, stream-addr=%p", | |
2440 | notit, notit->stream); | |
2441 | return; | |
2442 | } | |
2443 | ||
2444 | *message = ret; | |
2445 | } | |
2446 | ||
2447 | static | |
2448 | void create_msg_stream_end(struct bt_msg_iter *notit, bt_message **message) | |
f42867e2 | 2449 | { |
d6e69534 | 2450 | bt_message *ret; |
f42867e2 PP |
2451 | |
2452 | if (!notit->stream) { | |
d6e69534 | 2453 | BT_LOGE("Cannot create stream for stream message: " |
f42867e2 PP |
2454 | "notit-addr=%p", notit); |
2455 | return; | |
2456 | } | |
2457 | ||
d6e69534 PP |
2458 | BT_ASSERT(notit->msg_iter); |
2459 | ret = bt_message_stream_end_create(notit->msg_iter, | |
f0010051 | 2460 | notit->stream); |
f42867e2 | 2461 | if (!ret) { |
fc917f65 | 2462 | BT_LOGE("Cannot create stream end message: " |
f42867e2 PP |
2463 | "notit-addr=%p, stream-addr=%p", |
2464 | notit, notit->stream); | |
2465 | return; | |
2466 | } | |
fc917f65 | 2467 | |
d6e69534 | 2468 | *message = ret; |
f42867e2 PP |
2469 | } |
2470 | ||
78586d8a | 2471 | static |
fc917f65 | 2472 | void create_msg_packet_beginning(struct bt_msg_iter *notit, |
d6e69534 | 2473 | bt_message **message) |
e98a2d6e | 2474 | { |
312c056a | 2475 | int ret; |
d6e69534 PP |
2476 | enum bt_msg_iter_status status; |
2477 | bt_message *msg = NULL; | |
b19ff26f | 2478 | const bt_stream_class *sc; |
e98a2d6e | 2479 | |
312c056a | 2480 | status = set_current_packet(notit); |
d6e69534 | 2481 | if (status != BT_MSG_ITER_STATUS_OK) { |
312c056a | 2482 | goto end; |
e98a2d6e PP |
2483 | } |
2484 | ||
312c056a | 2485 | BT_ASSERT(notit->packet); |
40f4ba76 | 2486 | sc = notit->meta.sc->ir_sc; |
44c440bc PP |
2487 | BT_ASSERT(sc); |
2488 | ||
312c056a | 2489 | if (notit->packet_context_field) { |
40f4ba76 | 2490 | ret = bt_packet_move_context_field( |
e5be10ef | 2491 | notit->packet, notit->packet_context_field); |
312c056a PP |
2492 | if (ret) { |
2493 | goto end; | |
2494 | } | |
2495 | ||
2496 | notit->packet_context_field = NULL; | |
2497 | ||
2498 | /* | |
83ebb7f1 PP |
2499 | * At this point notit->dscopes.stream_packet_context |
2500 | * has the same value as the packet context field within | |
312c056a PP |
2501 | * notit->packet. |
2502 | */ | |
40f4ba76 | 2503 | BT_ASSERT(bt_packet_borrow_context_field( |
e5be10ef | 2504 | notit->packet) == |
312c056a PP |
2505 | notit->dscopes.stream_packet_context); |
2506 | } | |
2507 | ||
d6e69534 | 2508 | BT_ASSERT(notit->msg_iter); |
a6d85d2f PP |
2509 | |
2510 | if (notit->snapshots.beginning_clock == UINT64_C(-1)) { | |
2511 | msg = bt_message_packet_beginning_create(notit->msg_iter, | |
2512 | notit->packet); | |
2513 | } else { | |
2514 | msg = bt_message_packet_beginning_create_with_default_clock_snapshot( | |
2515 | notit->msg_iter, notit->packet, | |
2516 | notit->snapshots.beginning_clock); | |
2517 | } | |
2518 | ||
d6e69534 PP |
2519 | if (!msg) { |
2520 | BT_LOGE("Cannot create packet beginning message: " | |
fdf0e7a0 PP |
2521 | "notit-addr=%p, packet-addr=%p", |
2522 | notit, notit->packet); | |
e22b45d0 | 2523 | goto end; |
78586d8a | 2524 | } |
312c056a | 2525 | |
d6e69534 | 2526 | *message = msg; |
e22b45d0 PP |
2527 | |
2528 | end: | |
2529 | return; | |
e98a2d6e PP |
2530 | } |
2531 | ||
78586d8a | 2532 | static |
fc917f65 | 2533 | void create_msg_packet_end(struct bt_msg_iter *notit, bt_message **message) |
e98a2d6e | 2534 | { |
d6e69534 | 2535 | bt_message *msg; |
e98a2d6e | 2536 | |
e98a2d6e | 2537 | if (!notit->packet) { |
78586d8a | 2538 | return; |
e98a2d6e PP |
2539 | } |
2540 | ||
44c440bc PP |
2541 | /* Update default clock from packet's end time */ |
2542 | if (notit->snapshots.end_clock != UINT64_C(-1)) { | |
605e1019 | 2543 | notit->default_clock_snapshot = notit->snapshots.end_clock; |
44c440bc PP |
2544 | } |
2545 | ||
d6e69534 | 2546 | BT_ASSERT(notit->msg_iter); |
a6d85d2f PP |
2547 | |
2548 | if (notit->snapshots.end_clock == UINT64_C(-1)) { | |
2549 | msg = bt_message_packet_end_create(notit->msg_iter, | |
2550 | notit->packet); | |
2551 | } else { | |
2552 | msg = bt_message_packet_end_create_with_default_clock_snapshot( | |
2553 | notit->msg_iter, notit->packet, | |
2554 | notit->snapshots.end_clock); | |
2555 | } | |
2556 | ||
d6e69534 PP |
2557 | if (!msg) { |
2558 | BT_LOGE("Cannot create packet end message: " | |
fdf0e7a0 PP |
2559 | "notit-addr=%p, packet-addr=%p", |
2560 | notit, notit->packet); | |
78586d8a | 2561 | return; |
ccf82993 | 2562 | |
78586d8a | 2563 | } |
e98a2d6e | 2564 | |
c5b9b441 | 2565 | BT_PACKET_PUT_REF_AND_RESET(notit->packet); |
d6e69534 | 2566 | *message = msg; |
e98a2d6e PP |
2567 | } |
2568 | ||
495490c5 PP |
2569 | static |
2570 | void create_msg_discarded_events(struct bt_msg_iter *notit, | |
2571 | bt_message **message) | |
2572 | { | |
2573 | bt_message *msg; | |
2574 | uint64_t beginning_raw_value = UINT64_C(-1); | |
2575 | uint64_t end_raw_value = UINT64_C(-1); | |
2576 | uint64_t count = UINT64_C(-1); | |
2577 | ||
2578 | BT_ASSERT(notit->msg_iter); | |
2579 | BT_ASSERT(notit->stream); | |
2580 | ||
2581 | if (notit->prev_packet_snapshots.discarded_events == UINT64_C(-1)) { | |
2582 | /* | |
2583 | * We discarded events, but before (and possibly | |
2584 | * including) the current packet: use this packet's time | |
2585 | * range, and do not have a specific count. | |
2586 | */ | |
2587 | beginning_raw_value = notit->snapshots.beginning_clock; | |
2588 | end_raw_value = notit->snapshots.end_clock; | |
2589 | } else { | |
2590 | count = notit->snapshots.discarded_events - | |
2591 | notit->prev_packet_snapshots.discarded_events; | |
2592 | BT_ASSERT(count > 0); | |
2593 | beginning_raw_value = notit->prev_packet_snapshots.end_clock; | |
2594 | end_raw_value = notit->snapshots.end_clock; | |
2595 | } | |
2596 | ||
2597 | if (beginning_raw_value != UINT64_C(-1) && | |
2598 | end_raw_value != UINT64_C(-1)) { | |
2599 | msg = bt_message_discarded_events_create_with_default_clock_snapshots( | |
2600 | notit->msg_iter, notit->stream, beginning_raw_value, | |
2601 | end_raw_value); | |
2602 | } else { | |
2603 | msg = bt_message_discarded_events_create(notit->msg_iter, | |
2604 | notit->stream); | |
2605 | } | |
2606 | ||
2607 | if (!msg) { | |
2608 | BT_LOGE("Cannot create discarded events message: " | |
2609 | "notit-addr=%p, stream-addr=%p", | |
2610 | notit, notit->stream); | |
2611 | return; | |
2612 | } | |
2613 | ||
2614 | if (count != UINT64_C(-1)) { | |
2615 | bt_message_discarded_events_set_count(msg, count); | |
2616 | } | |
2617 | ||
2618 | *message = msg; | |
2619 | } | |
2620 | ||
2621 | static | |
2622 | void create_msg_discarded_packets(struct bt_msg_iter *notit, | |
2623 | bt_message **message) | |
2624 | { | |
2625 | bt_message *msg; | |
2626 | ||
2627 | BT_ASSERT(notit->msg_iter); | |
2628 | BT_ASSERT(notit->stream); | |
2629 | BT_ASSERT(notit->prev_packet_snapshots.packets != | |
2630 | UINT64_C(-1)); | |
2631 | ||
2632 | if (notit->prev_packet_snapshots.end_clock != UINT64_C(-1) && | |
2633 | notit->snapshots.beginning_clock != UINT64_C(-1)) { | |
2634 | msg = bt_message_discarded_packets_create_with_default_clock_snapshots( | |
2635 | notit->msg_iter, notit->stream, | |
2636 | notit->prev_packet_snapshots.end_clock, | |
2637 | notit->snapshots.beginning_clock); | |
2638 | } else { | |
2639 | msg = bt_message_discarded_packets_create(notit->msg_iter, | |
2640 | notit->stream); | |
2641 | } | |
2642 | ||
2643 | if (!msg) { | |
2644 | BT_LOGE("Cannot create discarded packets message: " | |
2645 | "notit-addr=%p, stream-addr=%p", | |
2646 | notit, notit->stream); | |
2647 | return; | |
2648 | } | |
2649 | ||
2650 | bt_message_discarded_packets_set_count(msg, | |
2651 | notit->snapshots.packets - | |
2652 | notit->prev_packet_snapshots.packets - 1); | |
2653 | *message = msg; | |
2654 | } | |
2655 | ||
c44c3e70 | 2656 | BT_HIDDEN |
d6e69534 | 2657 | struct bt_msg_iter *bt_msg_iter_create(struct ctf_trace_class *tc, |
e98a2d6e | 2658 | size_t max_request_sz, |
d6e69534 | 2659 | struct bt_msg_iter_medium_ops medops, void *data) |
e98a2d6e | 2660 | { |
d6e69534 | 2661 | struct bt_msg_iter *notit = NULL; |
5cd6d0e5 PP |
2662 | struct bt_bfcr_cbs cbs = { |
2663 | .classes = { | |
2664 | .signed_int = bfcr_signed_int_cb, | |
2665 | .unsigned_int = bfcr_unsigned_int_cb, | |
2666 | .floating_point = bfcr_floating_point_cb, | |
2667 | .string_begin = bfcr_string_begin_cb, | |
2668 | .string = bfcr_string_cb, | |
2669 | .string_end = bfcr_string_end_cb, | |
2670 | .compound_begin = bfcr_compound_begin_cb, | |
2671 | .compound_end = bfcr_compound_end_cb, | |
e98a2d6e PP |
2672 | }, |
2673 | .query = { | |
5cd6d0e5 PP |
2674 | .get_sequence_length = bfcr_get_sequence_length_cb, |
2675 | .borrow_variant_selected_field_class = bfcr_borrow_variant_selected_field_class_cb, | |
e98a2d6e PP |
2676 | }, |
2677 | }; | |
2678 | ||
44c440bc | 2679 | BT_ASSERT(tc); |
f6ccaed9 | 2680 | BT_ASSERT(medops.request_bytes); |
312c056a | 2681 | BT_ASSERT(medops.borrow_stream); |
d6e69534 | 2682 | BT_LOGD("Creating CTF plugin message iterator: " |
862ca4ed PP |
2683 | "trace-addr=%p, max-request-size=%zu, " |
2684 | "data=%p", tc, max_request_sz, data); | |
d6e69534 | 2685 | notit = g_new0(struct bt_msg_iter, 1); |
e98a2d6e | 2686 | if (!notit) { |
d6e69534 | 2687 | BT_LOGE_STR("Failed to allocate one CTF plugin message iterator."); |
e98a2d6e PP |
2688 | goto end; |
2689 | } | |
44c440bc | 2690 | notit->meta.tc = tc; |
e98a2d6e PP |
2691 | notit->medium.medops = medops; |
2692 | notit->medium.max_request_sz = max_request_sz; | |
2693 | notit->medium.data = data; | |
e98a2d6e | 2694 | notit->stack = stack_new(notit); |
44c440bc PP |
2695 | notit->stored_values = g_array_new(FALSE, TRUE, sizeof(uint64_t)); |
2696 | g_array_set_size(notit->stored_values, tc->stored_value_count); | |
2697 | ||
e98a2d6e | 2698 | if (!notit->stack) { |
fdf0e7a0 | 2699 | BT_LOGE_STR("Failed to create field stack."); |
c44c3e70 | 2700 | goto error; |
e98a2d6e PP |
2701 | } |
2702 | ||
5cd6d0e5 PP |
2703 | notit->bfcr = bt_bfcr_create(cbs, notit); |
2704 | if (!notit->bfcr) { | |
2705 | BT_LOGE_STR("Failed to create binary class reader (BFCR)."); | |
c44c3e70 | 2706 | goto error; |
e98a2d6e PP |
2707 | } |
2708 | ||
d6e69534 PP |
2709 | bt_msg_iter_reset(notit); |
2710 | BT_LOGD("Created CTF plugin message iterator: " | |
862ca4ed | 2711 | "trace-addr=%p, max-request-size=%zu, " |
fdf0e7a0 | 2712 | "data=%p, notit-addr=%p", |
862ca4ed | 2713 | tc, max_request_sz, data, notit); |
9e0c8dbb | 2714 | notit->cur_packet_offset = 0; |
fdf0e7a0 | 2715 | |
e98a2d6e PP |
2716 | end: |
2717 | return notit; | |
fdf0e7a0 | 2718 | |
c44c3e70 | 2719 | error: |
d6e69534 | 2720 | bt_msg_iter_destroy(notit); |
c44c3e70 JG |
2721 | notit = NULL; |
2722 | goto end; | |
e98a2d6e PP |
2723 | } |
2724 | ||
d6e69534 | 2725 | void bt_msg_iter_destroy(struct bt_msg_iter *notit) |
e98a2d6e | 2726 | { |
c5b9b441 PP |
2727 | BT_PACKET_PUT_REF_AND_RESET(notit->packet); |
2728 | BT_STREAM_PUT_REF_AND_RESET(notit->stream); | |
312c056a | 2729 | release_all_dscopes(notit); |
e98a2d6e | 2730 | |
d6e69534 | 2731 | BT_LOGD("Destroying CTF plugin message iterator: addr=%p", notit); |
fdf0e7a0 | 2732 | |
e98a2d6e | 2733 | if (notit->stack) { |
fdf0e7a0 | 2734 | BT_LOGD_STR("Destroying field stack."); |
e98a2d6e PP |
2735 | stack_destroy(notit->stack); |
2736 | } | |
2737 | ||
5cd6d0e5 PP |
2738 | if (notit->bfcr) { |
2739 | BT_LOGD("Destroying BFCR: bfcr-addr=%p", notit->bfcr); | |
2740 | bt_bfcr_destroy(notit->bfcr); | |
e98a2d6e PP |
2741 | } |
2742 | ||
44c440bc PP |
2743 | if (notit->stored_values) { |
2744 | g_array_free(notit->stored_values, TRUE); | |
5f870343 | 2745 | } |
fdf0e7a0 | 2746 | |
e98a2d6e PP |
2747 | g_free(notit); |
2748 | } | |
2749 | ||
d6e69534 PP |
2750 | enum bt_msg_iter_status bt_msg_iter_get_next_message( |
2751 | struct bt_msg_iter *notit, | |
fc917f65 | 2752 | bt_self_message_iterator *msg_iter, bt_message **message) |
e98a2d6e | 2753 | { |
d6e69534 | 2754 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e | 2755 | |
f6ccaed9 | 2756 | BT_ASSERT(notit); |
d6e69534 | 2757 | BT_ASSERT(message); |
d6e69534 | 2758 | notit->msg_iter = msg_iter; |
495490c5 | 2759 | notit->set_stream = true; |
d6e69534 | 2760 | BT_LOGV("Getting next message: notit-addr=%p", notit); |
fdf0e7a0 | 2761 | |
e98a2d6e PP |
2762 | while (true) { |
2763 | status = handle_state(notit); | |
fc917f65 | 2764 | if (unlikely(status == BT_MSG_ITER_STATUS_AGAIN)) { |
d6e69534 | 2765 | BT_LOGV_STR("Medium returned BT_MSG_ITER_STATUS_AGAIN."); |
7cdc2bab | 2766 | goto end; |
fc917f65 PP |
2767 | } else if (unlikely(status != BT_MSG_ITER_STATUS_OK)) { |
2768 | BT_LOGW("Cannot handle state: notit-addr=%p, state=%s", | |
2769 | notit, state_string(notit->state)); | |
e98a2d6e PP |
2770 | goto end; |
2771 | } | |
2772 | ||
2773 | switch (notit->state) { | |
fc917f65 PP |
2774 | case STATE_EMIT_MSG_EVENT: |
2775 | BT_ASSERT(notit->event_msg); | |
fc917f65 PP |
2776 | *message = notit->event_msg; |
2777 | notit->event_msg = NULL; | |
495490c5 PP |
2778 | goto end; |
2779 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
2780 | /* create_msg_discared_events() logs errors */ | |
2781 | create_msg_discarded_events(notit, message); | |
2782 | ||
2783 | if (!*message) { | |
2784 | status = BT_MSG_ITER_STATUS_ERROR; | |
2785 | } | |
2786 | ||
2787 | goto end; | |
2788 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
2789 | /* create_msg_discared_packets() logs errors */ | |
2790 | create_msg_discarded_packets(notit, message); | |
2791 | ||
2792 | if (!*message) { | |
2793 | status = BT_MSG_ITER_STATUS_ERROR; | |
2794 | } | |
2795 | ||
fc917f65 PP |
2796 | goto end; |
2797 | case STATE_EMIT_MSG_PACKET_BEGINNING: | |
2798 | /* create_msg_packet_beginning() logs errors */ | |
2799 | create_msg_packet_beginning(notit, message); | |
44c440bc | 2800 | |
d6e69534 PP |
2801 | if (!*message) { |
2802 | status = BT_MSG_ITER_STATUS_ERROR; | |
f42867e2 | 2803 | } |
44c440bc | 2804 | |
f42867e2 | 2805 | goto end; |
fc917f65 PP |
2806 | case STATE_EMIT_MSG_PACKET_END_SINGLE: |
2807 | case STATE_EMIT_MSG_PACKET_END_MULTI: | |
2808 | /* create_msg_packet_end() logs errors */ | |
2809 | create_msg_packet_end(notit, message); | |
44c440bc | 2810 | |
d6e69534 PP |
2811 | if (!*message) { |
2812 | status = BT_MSG_ITER_STATUS_ERROR; | |
e98a2d6e | 2813 | } |
312c056a | 2814 | |
e98a2d6e | 2815 | goto end; |
fc917f65 | 2816 | case STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING: |
495490c5 PP |
2817 | /* create_msg_stream_activity_beginning() logs errors */ |
2818 | create_msg_stream_activity_beginning(notit, message); | |
fc917f65 | 2819 | |
495490c5 PP |
2820 | if (!*message) { |
2821 | status = BT_MSG_ITER_STATUS_ERROR; | |
e98a2d6e | 2822 | } |
312c056a | 2823 | |
495490c5 | 2824 | goto end; |
fc917f65 | 2825 | case STATE_EMIT_MSG_STREAM_ACTIVITY_END: |
495490c5 PP |
2826 | /* create_msg_stream_activity_end() logs errors */ |
2827 | create_msg_stream_activity_end(notit, message); | |
fc917f65 | 2828 | |
495490c5 PP |
2829 | if (!*message) { |
2830 | status = BT_MSG_ITER_STATUS_ERROR; | |
fc917f65 PP |
2831 | } |
2832 | ||
495490c5 | 2833 | goto end; |
fc917f65 | 2834 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
495490c5 PP |
2835 | /* create_msg_stream_beginning() logs errors */ |
2836 | create_msg_stream_beginning(notit, message); | |
fc917f65 | 2837 | |
495490c5 PP |
2838 | if (!*message) { |
2839 | status = BT_MSG_ITER_STATUS_ERROR; | |
fc917f65 PP |
2840 | } |
2841 | ||
495490c5 | 2842 | goto end; |
fc917f65 | 2843 | case STATE_EMIT_MSG_STREAM_END: |
495490c5 PP |
2844 | /* create_msg_stream_end() logs errors */ |
2845 | create_msg_stream_end(notit, message); | |
fc917f65 | 2846 | |
495490c5 PP |
2847 | if (!*message) { |
2848 | status = BT_MSG_ITER_STATUS_ERROR; | |
fc917f65 PP |
2849 | } |
2850 | ||
495490c5 | 2851 | goto end; |
fc917f65 PP |
2852 | case STATE_DONE: |
2853 | status = BT_MSG_ITER_STATUS_EOF; | |
e98a2d6e PP |
2854 | goto end; |
2855 | default: | |
2856 | /* Non-emitting state: continue */ | |
2857 | break; | |
2858 | } | |
2859 | } | |
2860 | ||
2861 | end: | |
2862 | return status; | |
2863 | } | |
87187cbf | 2864 | |
41693723 PP |
2865 | static |
2866 | enum bt_msg_iter_status read_packet_header_context_fields( | |
2867 | struct bt_msg_iter *notit) | |
87187cbf | 2868 | { |
9e0c8dbb | 2869 | int ret; |
d6e69534 | 2870 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
87187cbf | 2871 | |
f6ccaed9 | 2872 | BT_ASSERT(notit); |
495490c5 | 2873 | notit->set_stream = false; |
87187cbf | 2874 | |
fc917f65 | 2875 | if (notit->state == STATE_EMIT_MSG_PACKET_BEGINNING) { |
87187cbf | 2876 | /* We're already there */ |
41693723 | 2877 | goto end; |
87187cbf PP |
2878 | } |
2879 | ||
2880 | while (true) { | |
2881 | status = handle_state(notit); | |
fc917f65 | 2882 | if (unlikely(status == BT_MSG_ITER_STATUS_AGAIN)) { |
d6e69534 | 2883 | BT_LOGV_STR("Medium returned BT_MSG_ITER_STATUS_AGAIN."); |
87187cbf | 2884 | goto end; |
fc917f65 PP |
2885 | } else if (unlikely(status != BT_MSG_ITER_STATUS_OK)) { |
2886 | BT_LOGW("Cannot handle state: notit-addr=%p, state=%s", | |
2887 | notit, state_string(notit->state)); | |
87187cbf PP |
2888 | goto end; |
2889 | } | |
2890 | ||
2891 | switch (notit->state) { | |
fc917f65 | 2892 | case STATE_EMIT_MSG_PACKET_BEGINNING: |
87187cbf PP |
2893 | /* |
2894 | * Packet header and context fields are | |
2895 | * potentially decoded (or they don't exist). | |
2896 | */ | |
41693723 | 2897 | goto end; |
87187cbf PP |
2898 | case STATE_INIT: |
2899 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
2900 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
2901 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
2902 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
2903 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
2904 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
495490c5 | 2905 | case STATE_CHECK_EMIT_MSG_STREAM_BEGINNING: |
fc917f65 PP |
2906 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
2907 | case STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING: | |
495490c5 PP |
2908 | case STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS: |
2909 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
2910 | case STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS: | |
2911 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
87187cbf PP |
2912 | /* Non-emitting state: continue */ |
2913 | break; | |
2914 | default: | |
2915 | /* | |
2916 | * We should never get past the | |
fc917f65 | 2917 | * STATE_EMIT_MSG_PACKET_BEGINNING state. |
87187cbf | 2918 | */ |
fdf0e7a0 PP |
2919 | BT_LOGF("Unexpected state: notit-addr=%p, state=%s", |
2920 | notit, state_string(notit->state)); | |
0fbb9a9f | 2921 | abort(); |
87187cbf PP |
2922 | } |
2923 | } | |
2924 | ||
41693723 | 2925 | end: |
312c056a PP |
2926 | ret = set_current_packet_content_sizes(notit); |
2927 | if (ret) { | |
d6e69534 | 2928 | status = BT_MSG_ITER_STATUS_ERROR; |
312c056a PP |
2929 | goto end; |
2930 | } | |
2931 | ||
87187cbf PP |
2932 | return status; |
2933 | } | |
6de92955 PP |
2934 | |
2935 | BT_HIDDEN | |
d6e69534 | 2936 | void bt_msg_iter_set_medops_data(struct bt_msg_iter *notit, |
6de92955 PP |
2937 | void *medops_data) |
2938 | { | |
f6ccaed9 | 2939 | BT_ASSERT(notit); |
6de92955 PP |
2940 | notit->medium.data = medops_data; |
2941 | } | |
9e0c8dbb JG |
2942 | |
2943 | BT_HIDDEN | |
fc917f65 PP |
2944 | enum bt_msg_iter_status bt_msg_iter_seek(struct bt_msg_iter *notit, |
2945 | off_t offset) | |
9e0c8dbb | 2946 | { |
d6e69534 PP |
2947 | enum bt_msg_iter_status ret = BT_MSG_ITER_STATUS_OK; |
2948 | enum bt_msg_iter_medium_status medium_status; | |
9e0c8dbb | 2949 | |
f6ccaed9 | 2950 | BT_ASSERT(notit); |
9e0c8dbb JG |
2951 | if (offset < 0) { |
2952 | BT_LOGE("Cannot seek to negative offset: offset=%jd", offset); | |
d6e69534 | 2953 | ret = BT_MSG_ITER_STATUS_INVAL; |
9e0c8dbb JG |
2954 | goto end; |
2955 | } | |
2956 | ||
2957 | if (!notit->medium.medops.seek) { | |
d6e69534 | 2958 | ret = BT_MSG_ITER_STATUS_UNSUPPORTED; |
9e0c8dbb JG |
2959 | BT_LOGD("Aborting seek as the iterator's underlying media does not implement seek support."); |
2960 | goto end; | |
2961 | } | |
2962 | ||
2963 | medium_status = notit->medium.medops.seek( | |
d6e69534 PP |
2964 | BT_MSG_ITER_SEEK_WHENCE_SET, offset, notit->medium.data); |
2965 | if (medium_status != BT_MSG_ITER_MEDIUM_STATUS_OK) { | |
2966 | if (medium_status == BT_MSG_ITER_MEDIUM_STATUS_EOF) { | |
2967 | ret = BT_MSG_ITER_STATUS_EOF; | |
9e0c8dbb | 2968 | } else { |
d6e69534 | 2969 | ret = BT_MSG_ITER_STATUS_ERROR; |
9e0c8dbb JG |
2970 | goto end; |
2971 | } | |
2972 | } | |
2973 | ||
d6e69534 | 2974 | bt_msg_iter_reset(notit); |
9e0c8dbb | 2975 | notit->cur_packet_offset = offset; |
44c440bc | 2976 | |
9e0c8dbb JG |
2977 | end: |
2978 | return ret; | |
2979 | } | |
2980 | ||
44c440bc | 2981 | BT_HIDDEN |
d6e69534 PP |
2982 | enum bt_msg_iter_status bt_msg_iter_get_packet_properties( |
2983 | struct bt_msg_iter *notit, | |
2984 | struct bt_msg_iter_packet_properties *props) | |
44c440bc | 2985 | { |
41693723 PP |
2986 | enum bt_msg_iter_status status; |
2987 | ||
44c440bc PP |
2988 | BT_ASSERT(notit); |
2989 | BT_ASSERT(props); | |
41693723 PP |
2990 | status = read_packet_header_context_fields(notit); |
2991 | if (status != BT_MSG_ITER_STATUS_OK) { | |
2992 | goto end; | |
2993 | } | |
44c440bc | 2994 | |
fc917f65 PP |
2995 | props->exp_packet_total_size = notit->cur_exp_packet_total_size; |
2996 | props->exp_packet_content_size = notit->cur_exp_packet_content_size; | |
44c440bc PP |
2997 | BT_ASSERT(props->stream_class_id >= 0); |
2998 | props->stream_class_id = (uint64_t) notit->cur_stream_class_id; | |
2999 | props->data_stream_id = notit->cur_data_stream_id; | |
3000 | props->snapshots.discarded_events = notit->snapshots.discarded_events; | |
3001 | props->snapshots.packets = notit->snapshots.packets; | |
3002 | props->snapshots.beginning_clock = notit->snapshots.beginning_clock; | |
3003 | props->snapshots.end_clock = notit->snapshots.end_clock; | |
41693723 PP |
3004 | |
3005 | end: | |
3006 | return status; | |
9e0c8dbb | 3007 | } |
fc917f65 PP |
3008 | |
3009 | BT_HIDDEN | |
3010 | void bt_msg_iter_set_emit_stream_beginning_message(struct bt_msg_iter *notit, | |
3011 | bool val) | |
3012 | { | |
3013 | notit->emit_stream_begin_msg = val; | |
3014 | } | |
3015 | ||
3016 | BT_HIDDEN | |
3017 | void bt_msg_iter_set_emit_stream_end_message(struct bt_msg_iter *notit, | |
3018 | bool val) | |
3019 | { | |
3020 | notit->emit_stream_end_msg = val; | |
3021 | } |