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) { | |
01f71e30 PP |
972 | notit->cur_exp_packet_total_size = |
973 | notit->cur_exp_packet_content_size; | |
e98a2d6e | 974 | } |
e98a2d6e | 975 | } else { |
44c440bc PP |
976 | if (notit->cur_exp_packet_content_size == -1) { |
977 | notit->cur_exp_packet_content_size = | |
978 | notit->cur_exp_packet_total_size; | |
979 | } | |
e98a2d6e PP |
980 | } |
981 | ||
01f71e30 PP |
982 | BT_ASSERT(notit->cur_exp_packet_total_size != -1); |
983 | BT_ASSERT(notit->cur_exp_packet_content_size != -1); | |
984 | ||
44c440bc PP |
985 | if (notit->cur_exp_packet_content_size > |
986 | notit->cur_exp_packet_total_size) { | |
987 | BT_LOGW("Invalid packet or content size: " | |
988 | "content size is greater than packet size: " | |
fdf0e7a0 | 989 | "notit-addr=%p, packet-context-field-addr=%p, " |
44c440bc | 990 | "packet-size=%" PRId64 ", content-size=%" PRId64, |
fdf0e7a0 | 991 | notit, notit->dscopes.stream_packet_context, |
44c440bc PP |
992 | notit->cur_exp_packet_total_size, |
993 | notit->cur_exp_packet_content_size); | |
d6e69534 | 994 | status = BT_MSG_ITER_STATUS_ERROR; |
fdf0e7a0 PP |
995 | goto end; |
996 | } | |
997 | ||
fdf0e7a0 PP |
998 | BT_LOGV("Set current packet and content sizes: " |
999 | "notit-addr=%p, packet-size=%" PRIu64 ", content-size=%" PRIu64, | |
44c440bc PP |
1000 | notit, notit->cur_exp_packet_total_size, |
1001 | notit->cur_exp_packet_content_size); | |
fc917f65 | 1002 | |
e98a2d6e | 1003 | end: |
e98a2d6e PP |
1004 | return status; |
1005 | } | |
1006 | ||
1007 | static | |
fc917f65 | 1008 | enum bt_msg_iter_status after_packet_context_state(struct bt_msg_iter *notit) |
e98a2d6e | 1009 | { |
d6e69534 | 1010 | enum bt_msg_iter_status status; |
e98a2d6e PP |
1011 | |
1012 | status = set_current_packet_content_sizes(notit); | |
d6e69534 | 1013 | if (status != BT_MSG_ITER_STATUS_OK) { |
e22b45d0 PP |
1014 | goto end; |
1015 | } | |
1016 | ||
fc917f65 PP |
1017 | if (notit->stream) { |
1018 | /* | |
1019 | * Stream exists, which means we already emitted at | |
1020 | * least one packet beginning message, so the initial | |
1021 | * stream beginning message was also emitted. | |
1022 | */ | |
495490c5 | 1023 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS; |
e22b45d0 | 1024 | } else { |
495490c5 | 1025 | notit->state = STATE_CHECK_EMIT_MSG_STREAM_BEGINNING; |
e98a2d6e PP |
1026 | } |
1027 | ||
e22b45d0 | 1028 | end: |
e98a2d6e PP |
1029 | return status; |
1030 | } | |
1031 | ||
1032 | static | |
fc917f65 | 1033 | enum bt_msg_iter_status read_event_header_begin_state(struct bt_msg_iter *notit) |
e98a2d6e | 1034 | { |
d6e69534 | 1035 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 1036 | struct ctf_field_class *event_header_fc = NULL; |
e98a2d6e | 1037 | |
174e773b PP |
1038 | /* Reset the position of the last event header */ |
1039 | notit->buf.last_eh_at = notit->buf.at; | |
44c440bc | 1040 | notit->cur_event_class_id = -1; |
174e773b | 1041 | |
e98a2d6e | 1042 | /* Check if we have some content left */ |
44c440bc PP |
1043 | if (notit->cur_exp_packet_content_size >= 0) { |
1044 | if (unlikely(packet_at(notit) == | |
1045 | notit->cur_exp_packet_content_size)) { | |
e98a2d6e | 1046 | /* No more events! */ |
fdf0e7a0 PP |
1047 | BT_LOGV("Reached end of packet: notit-addr=%p, " |
1048 | "cur=%zu", notit, packet_at(notit)); | |
fc917f65 | 1049 | notit->state = STATE_EMIT_MSG_PACKET_END_MULTI; |
e98a2d6e | 1050 | goto end; |
44c440bc PP |
1051 | } else if (unlikely(packet_at(notit) > |
1052 | notit->cur_exp_packet_content_size)) { | |
e98a2d6e | 1053 | /* That's not supposed to happen */ |
fdf0e7a0 | 1054 | BT_LOGV("Before decoding event header field: cursor is passed the packet's content: " |
1974687e | 1055 | "notit-addr=%p, content-size=%" PRId64 ", " |
44c440bc PP |
1056 | "cur=%zu", notit, |
1057 | notit->cur_exp_packet_content_size, | |
fdf0e7a0 | 1058 | packet_at(notit)); |
d6e69534 | 1059 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
1060 | goto end; |
1061 | } | |
44c440bc PP |
1062 | } else { |
1063 | /* | |
1064 | * "Infinite" content: we're done when the medium has | |
1065 | * nothing else for us. | |
1066 | */ | |
1067 | status = buf_ensure_available_bits(notit); | |
fc917f65 PP |
1068 | switch (status) { |
1069 | case BT_MSG_ITER_STATUS_OK: | |
1070 | break; | |
1071 | case BT_MSG_ITER_STATUS_EOF: | |
1072 | status = BT_MSG_ITER_STATUS_OK; | |
1073 | notit->state = STATE_EMIT_MSG_PACKET_END_SINGLE; | |
1074 | goto end; | |
1075 | default: | |
44c440bc PP |
1076 | goto end; |
1077 | } | |
e98a2d6e PP |
1078 | } |
1079 | ||
312c056a | 1080 | release_event_dscopes(notit); |
44c440bc | 1081 | BT_ASSERT(notit->meta.sc); |
5cd6d0e5 PP |
1082 | event_header_fc = notit->meta.sc->event_header_fc; |
1083 | if (!event_header_fc) { | |
44c440bc | 1084 | notit->state = STATE_AFTER_EVENT_HEADER; |
e98a2d6e PP |
1085 | goto end; |
1086 | } | |
1087 | ||
fdf0e7a0 PP |
1088 | BT_LOGV("Decoding event header field: " |
1089 | "notit-addr=%p, stream-class-addr=%p, " | |
44c440bc | 1090 | "stream-class-id=%" PRId64 ", " |
5cd6d0e5 | 1091 | "fc-addr=%p", |
44c440bc PP |
1092 | notit, notit->meta.sc, |
1093 | notit->meta.sc->id, | |
5cd6d0e5 PP |
1094 | event_header_fc); |
1095 | status = read_dscope_begin_state(notit, event_header_fc, | |
44c440bc | 1096 | STATE_AFTER_EVENT_HEADER, |
83ebb7f1 | 1097 | STATE_DSCOPE_EVENT_HEADER_CONTINUE, NULL); |
fdf0e7a0 PP |
1098 | if (status < 0) { |
1099 | BT_LOGW("Cannot decode event header field: " | |
1100 | "notit-addr=%p, stream-class-addr=%p, " | |
5cd6d0e5 | 1101 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1102 | notit, notit->meta.sc, |
1103 | notit->meta.sc->id, | |
5cd6d0e5 | 1104 | event_header_fc); |
fdf0e7a0 | 1105 | } |
e98a2d6e | 1106 | |
d1e46835 | 1107 | end: |
e98a2d6e PP |
1108 | return status; |
1109 | } | |
1110 | ||
1111 | static | |
d6e69534 PP |
1112 | enum bt_msg_iter_status read_event_header_continue_state( |
1113 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
1114 | { |
1115 | return read_dscope_continue_state(notit, | |
44c440bc | 1116 | STATE_AFTER_EVENT_HEADER); |
e98a2d6e PP |
1117 | } |
1118 | ||
1119 | static inline | |
d6e69534 | 1120 | enum bt_msg_iter_status set_current_event_class(struct bt_msg_iter *notit) |
e98a2d6e | 1121 | { |
d6e69534 | 1122 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e | 1123 | |
44c440bc | 1124 | struct ctf_event_class *new_event_class = NULL; |
e98a2d6e | 1125 | |
44c440bc | 1126 | if (notit->cur_event_class_id == -1) { |
e98a2d6e | 1127 | /* |
44c440bc PP |
1128 | * No current event class ID field, therefore only one |
1129 | * event class. | |
e98a2d6e | 1130 | */ |
44c440bc PP |
1131 | if (notit->meta.sc->event_classes->len != 1) { |
1132 | BT_LOGW("Need exactly one event class since there's " | |
1133 | "no event class ID field: " | |
862ca4ed | 1134 | "notit-addr=%p", notit); |
d6e69534 | 1135 | status = BT_MSG_ITER_STATUS_ERROR; |
44c440bc | 1136 | goto end; |
fdf0e7a0 | 1137 | } |
e98a2d6e | 1138 | |
44c440bc PP |
1139 | new_event_class = notit->meta.sc->event_classes->pdata[0]; |
1140 | notit->cur_event_class_id = new_event_class->id; | |
e98a2d6e PP |
1141 | } |
1142 | ||
44c440bc PP |
1143 | new_event_class = ctf_stream_class_borrow_event_class_by_id( |
1144 | notit->meta.sc, notit->cur_event_class_id); | |
1145 | if (!new_event_class) { | |
fdf0e7a0 | 1146 | BT_LOGW("No event class with ID of event class ID to use in stream class: " |
44c440bc PP |
1147 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " |
1148 | "event-class-id=%" PRIu64 ", " | |
862ca4ed | 1149 | "trace-class-addr=%p", |
44c440bc | 1150 | notit, notit->meta.sc->id, notit->cur_event_class_id, |
862ca4ed | 1151 | notit->meta.tc); |
d6e69534 | 1152 | status = BT_MSG_ITER_STATUS_ERROR; |
e98a2d6e PP |
1153 | goto end; |
1154 | } | |
1155 | ||
44c440bc | 1156 | notit->meta.ec = new_event_class; |
fdf0e7a0 PP |
1157 | BT_LOGV("Set current event class: " |
1158 | "notit-addr=%p, event-class-addr=%p, " | |
44c440bc PP |
1159 | "event-class-id=%" PRId64 ", " |
1160 | "event-class-name=\"%s\"", | |
1161 | notit, notit->meta.ec, notit->meta.ec->id, | |
1162 | notit->meta.ec->name->str); | |
fdf0e7a0 | 1163 | |
e98a2d6e | 1164 | end: |
e98a2d6e PP |
1165 | return status; |
1166 | } | |
1167 | ||
312c056a | 1168 | static inline |
d6e69534 PP |
1169 | enum bt_msg_iter_status set_current_event_message( |
1170 | struct bt_msg_iter *notit) | |
312c056a | 1171 | { |
d6e69534 PP |
1172 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
1173 | bt_message *msg = NULL; | |
312c056a | 1174 | |
44c440bc | 1175 | BT_ASSERT(notit->meta.ec); |
312c056a | 1176 | BT_ASSERT(notit->packet); |
d6e69534 | 1177 | BT_LOGV("Creating event message from event class and packet: " |
312c056a | 1178 | "notit-addr=%p, ec-addr=%p, ec-name=\"%s\", packet-addr=%p", |
44c440bc PP |
1179 | notit, notit->meta.ec, |
1180 | notit->meta.ec->name->str, | |
312c056a | 1181 | notit->packet); |
d6e69534 | 1182 | BT_ASSERT(notit->msg_iter); |
2c091c04 PP |
1183 | BT_ASSERT(notit->meta.sc); |
1184 | ||
1185 | if (bt_stream_class_borrow_default_clock_class(notit->meta.sc->ir_sc)) { | |
1186 | msg = bt_message_event_create_with_default_clock_snapshot( | |
1187 | notit->msg_iter, notit->meta.ec->ir_ec, | |
1188 | notit->packet, notit->default_clock_snapshot); | |
1189 | } else { | |
1190 | msg = bt_message_event_create(notit->msg_iter, | |
1191 | notit->meta.ec->ir_ec, notit->packet); | |
1192 | } | |
1193 | ||
d6e69534 PP |
1194 | if (!msg) { |
1195 | BT_LOGE("Cannot create event message: " | |
312c056a PP |
1196 | "notit-addr=%p, ec-addr=%p, ec-name=\"%s\", " |
1197 | "packet-addr=%p", | |
44c440bc PP |
1198 | notit, notit->meta.ec, |
1199 | notit->meta.ec->name->str, | |
312c056a PP |
1200 | notit->packet); |
1201 | goto error; | |
1202 | } | |
1203 | ||
1204 | goto end; | |
1205 | ||
1206 | error: | |
d6e69534 PP |
1207 | BT_MESSAGE_PUT_REF_AND_RESET(msg); |
1208 | status = BT_MSG_ITER_STATUS_ERROR; | |
312c056a PP |
1209 | |
1210 | end: | |
d6e69534 | 1211 | BT_MESSAGE_MOVE_REF(notit->event_msg, msg); |
312c056a PP |
1212 | return status; |
1213 | } | |
1214 | ||
e98a2d6e | 1215 | static |
d6e69534 PP |
1216 | enum bt_msg_iter_status after_event_header_state( |
1217 | struct bt_msg_iter *notit) | |
e98a2d6e | 1218 | { |
d6e69534 | 1219 | enum bt_msg_iter_status status; |
e98a2d6e | 1220 | |
e98a2d6e | 1221 | status = set_current_event_class(notit); |
d6e69534 | 1222 | if (status != BT_MSG_ITER_STATUS_OK) { |
e98a2d6e PP |
1223 | goto end; |
1224 | } | |
1225 | ||
d6e69534 PP |
1226 | status = set_current_event_message(notit); |
1227 | if (status != BT_MSG_ITER_STATUS_OK) { | |
312c056a PP |
1228 | goto end; |
1229 | } | |
1230 | ||
d6e69534 PP |
1231 | notit->event = bt_message_event_borrow_event( |
1232 | notit->event_msg); | |
312c056a | 1233 | BT_ASSERT(notit->event); |
44c440bc | 1234 | notit->state = STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN; |
e98a2d6e PP |
1235 | |
1236 | end: | |
1237 | return status; | |
1238 | } | |
1239 | ||
1240 | static | |
d6e69534 PP |
1241 | enum bt_msg_iter_status read_event_common_context_begin_state( |
1242 | struct bt_msg_iter *notit) | |
e98a2d6e | 1243 | { |
d6e69534 | 1244 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 1245 | struct ctf_field_class *event_common_context_fc; |
e98a2d6e | 1246 | |
5cd6d0e5 PP |
1247 | event_common_context_fc = notit->meta.sc->event_common_context_fc; |
1248 | if (!event_common_context_fc) { | |
44c440bc | 1249 | notit->state = STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN; |
e98a2d6e PP |
1250 | goto end; |
1251 | } | |
1252 | ||
5cd6d0e5 | 1253 | if (event_common_context_fc->in_ir) { |
44c440bc PP |
1254 | BT_ASSERT(!notit->dscopes.event_common_context); |
1255 | notit->dscopes.event_common_context = | |
40f4ba76 | 1256 | bt_event_borrow_common_context_field( |
e5be10ef | 1257 | notit->event); |
44c440bc PP |
1258 | BT_ASSERT(notit->dscopes.event_common_context); |
1259 | } | |
1260 | ||
1261 | BT_LOGV("Decoding event common context field: " | |
fdf0e7a0 | 1262 | "notit-addr=%p, stream-class-addr=%p, " |
44c440bc | 1263 | "stream-class-id=%" PRId64 ", " |
5cd6d0e5 | 1264 | "fc-addr=%p", |
44c440bc PP |
1265 | notit, notit->meta.sc, |
1266 | notit->meta.sc->id, | |
5cd6d0e5 PP |
1267 | event_common_context_fc); |
1268 | status = read_dscope_begin_state(notit, event_common_context_fc, | |
44c440bc PP |
1269 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN, |
1270 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE, | |
1271 | notit->dscopes.event_common_context); | |
fdf0e7a0 | 1272 | if (status < 0) { |
44c440bc | 1273 | BT_LOGW("Cannot decode event common context field: " |
fdf0e7a0 | 1274 | "notit-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 1275 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1276 | notit, notit->meta.sc, |
1277 | notit->meta.sc->id, | |
5cd6d0e5 | 1278 | event_common_context_fc); |
fdf0e7a0 | 1279 | } |
e98a2d6e PP |
1280 | |
1281 | end: | |
e98a2d6e PP |
1282 | return status; |
1283 | } | |
1284 | ||
1285 | static | |
d6e69534 PP |
1286 | enum bt_msg_iter_status read_event_common_context_continue_state( |
1287 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
1288 | { |
1289 | return read_dscope_continue_state(notit, | |
44c440bc | 1290 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN); |
e98a2d6e PP |
1291 | } |
1292 | ||
1293 | static | |
d6e69534 PP |
1294 | enum bt_msg_iter_status read_event_spec_context_begin_state( |
1295 | struct bt_msg_iter *notit) | |
e98a2d6e | 1296 | { |
d6e69534 | 1297 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 1298 | struct ctf_field_class *event_spec_context_fc; |
e98a2d6e | 1299 | |
5cd6d0e5 PP |
1300 | event_spec_context_fc = notit->meta.ec->spec_context_fc; |
1301 | if (!event_spec_context_fc) { | |
835b2d10 | 1302 | notit->state = STATE_DSCOPE_EVENT_PAYLOAD_BEGIN; |
e98a2d6e PP |
1303 | goto end; |
1304 | } | |
fdf0e7a0 | 1305 | |
5cd6d0e5 | 1306 | if (event_spec_context_fc->in_ir) { |
44c440bc | 1307 | BT_ASSERT(!notit->dscopes.event_spec_context); |
e5be10ef | 1308 | notit->dscopes.event_spec_context = |
40f4ba76 | 1309 | bt_event_borrow_specific_context_field( |
e5be10ef | 1310 | notit->event); |
44c440bc PP |
1311 | BT_ASSERT(notit->dscopes.event_spec_context); |
1312 | } | |
1313 | ||
1314 | BT_LOGV("Decoding event specific context field: " | |
fdf0e7a0 PP |
1315 | "notit-addr=%p, event-class-addr=%p, " |
1316 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
5cd6d0e5 | 1317 | "fc-addr=%p", |
44c440bc PP |
1318 | notit, notit->meta.ec, |
1319 | notit->meta.ec->name->str, | |
1320 | notit->meta.ec->id, | |
5cd6d0e5 PP |
1321 | event_spec_context_fc); |
1322 | status = read_dscope_begin_state(notit, event_spec_context_fc, | |
e98a2d6e | 1323 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, |
44c440bc PP |
1324 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE, |
1325 | notit->dscopes.event_spec_context); | |
fdf0e7a0 | 1326 | if (status < 0) { |
44c440bc | 1327 | BT_LOGW("Cannot decode event specific context field: " |
fdf0e7a0 PP |
1328 | "notit-addr=%p, event-class-addr=%p, " |
1329 | "event-class-name=\"%s\", " | |
5cd6d0e5 | 1330 | "event-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1331 | notit, notit->meta.ec, |
1332 | notit->meta.ec->name->str, | |
1333 | notit->meta.ec->id, | |
5cd6d0e5 | 1334 | event_spec_context_fc); |
fdf0e7a0 | 1335 | } |
e98a2d6e PP |
1336 | |
1337 | end: | |
e98a2d6e PP |
1338 | return status; |
1339 | } | |
1340 | ||
1341 | static | |
d6e69534 PP |
1342 | enum bt_msg_iter_status read_event_spec_context_continue_state( |
1343 | struct bt_msg_iter *notit) | |
e98a2d6e PP |
1344 | { |
1345 | return read_dscope_continue_state(notit, | |
1346 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN); | |
1347 | } | |
1348 | ||
1349 | static | |
d6e69534 PP |
1350 | enum bt_msg_iter_status read_event_payload_begin_state( |
1351 | struct bt_msg_iter *notit) | |
e98a2d6e | 1352 | { |
d6e69534 | 1353 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
5cd6d0e5 | 1354 | struct ctf_field_class *event_payload_fc; |
e98a2d6e | 1355 | |
5cd6d0e5 PP |
1356 | event_payload_fc = notit->meta.ec->payload_fc; |
1357 | if (!event_payload_fc) { | |
d6e69534 | 1358 | notit->state = STATE_EMIT_MSG_EVENT; |
e98a2d6e PP |
1359 | goto end; |
1360 | } | |
1361 | ||
5cd6d0e5 | 1362 | if (event_payload_fc->in_ir) { |
44c440bc | 1363 | BT_ASSERT(!notit->dscopes.event_payload); |
e5be10ef | 1364 | notit->dscopes.event_payload = |
40f4ba76 | 1365 | bt_event_borrow_payload_field( |
e5be10ef | 1366 | notit->event); |
44c440bc PP |
1367 | BT_ASSERT(notit->dscopes.event_payload); |
1368 | } | |
1369 | ||
fdf0e7a0 PP |
1370 | BT_LOGV("Decoding event payload field: " |
1371 | "notit-addr=%p, event-class-addr=%p, " | |
1372 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
5cd6d0e5 | 1373 | "fc-addr=%p", |
44c440bc PP |
1374 | notit, notit->meta.ec, |
1375 | notit->meta.ec->name->str, | |
1376 | notit->meta.ec->id, | |
5cd6d0e5 PP |
1377 | event_payload_fc); |
1378 | status = read_dscope_begin_state(notit, event_payload_fc, | |
d6e69534 | 1379 | STATE_EMIT_MSG_EVENT, |
e98a2d6e | 1380 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, |
312c056a | 1381 | notit->dscopes.event_payload); |
fdf0e7a0 PP |
1382 | if (status < 0) { |
1383 | BT_LOGW("Cannot decode event payload field: " | |
1384 | "notit-addr=%p, event-class-addr=%p, " | |
1385 | "event-class-name=\"%s\", " | |
5cd6d0e5 | 1386 | "event-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1387 | notit, notit->meta.ec, |
1388 | notit->meta.ec->name->str, | |
1389 | notit->meta.ec->id, | |
5cd6d0e5 | 1390 | event_payload_fc); |
fdf0e7a0 | 1391 | } |
e98a2d6e PP |
1392 | |
1393 | end: | |
e98a2d6e PP |
1394 | return status; |
1395 | } | |
1396 | ||
1397 | static | |
d6e69534 PP |
1398 | enum bt_msg_iter_status read_event_payload_continue_state( |
1399 | struct bt_msg_iter *notit) | |
e98a2d6e | 1400 | { |
d6e69534 | 1401 | return read_dscope_continue_state(notit, STATE_EMIT_MSG_EVENT); |
e98a2d6e PP |
1402 | } |
1403 | ||
1404 | static | |
fc917f65 | 1405 | enum bt_msg_iter_status skip_packet_padding_state(struct bt_msg_iter *notit) |
e98a2d6e | 1406 | { |
d6e69534 | 1407 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e PP |
1408 | size_t bits_to_skip; |
1409 | ||
44c440bc PP |
1410 | BT_ASSERT(notit->cur_exp_packet_total_size > 0); |
1411 | bits_to_skip = notit->cur_exp_packet_total_size - packet_at(notit); | |
e98a2d6e PP |
1412 | if (bits_to_skip == 0) { |
1413 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1414 | goto end; | |
1415 | } else { | |
1416 | size_t bits_to_consume; | |
fdf0e7a0 PP |
1417 | |
1418 | BT_LOGV("Trying to skip %zu bits of padding: notit-addr=%p, size=%zu", | |
1419 | bits_to_skip, notit, bits_to_skip); | |
e98a2d6e | 1420 | status = buf_ensure_available_bits(notit); |
d6e69534 | 1421 | if (status != BT_MSG_ITER_STATUS_OK) { |
e98a2d6e PP |
1422 | goto end; |
1423 | } | |
1424 | ||
1425 | bits_to_consume = MIN(buf_available_bits(notit), bits_to_skip); | |
fdf0e7a0 PP |
1426 | BT_LOGV("Skipping %zu bits of padding: notit-addr=%p, size=%zu", |
1427 | bits_to_consume, notit, bits_to_consume); | |
e98a2d6e | 1428 | buf_consume_bits(notit, bits_to_consume); |
44c440bc PP |
1429 | bits_to_skip = notit->cur_exp_packet_total_size - |
1430 | packet_at(notit); | |
e98a2d6e PP |
1431 | if (bits_to_skip == 0) { |
1432 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1433 | goto end; | |
1434 | } | |
1435 | } | |
1436 | ||
1437 | end: | |
1438 | return status; | |
1439 | } | |
1440 | ||
495490c5 PP |
1441 | static |
1442 | enum bt_msg_iter_status check_emit_msg_stream_beginning_state( | |
1443 | struct bt_msg_iter *notit) | |
1444 | { | |
1445 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; | |
1446 | ||
1447 | if (notit->set_stream) { | |
1448 | status = set_current_stream(notit); | |
1449 | if (status != BT_MSG_ITER_STATUS_OK) { | |
1450 | goto end; | |
1451 | } | |
1452 | } | |
1453 | ||
1454 | if (notit->emit_stream_begin_msg) { | |
1455 | notit->state = STATE_EMIT_MSG_STREAM_BEGINNING; | |
1456 | } else { | |
1457 | /* Stream's first packet */ | |
1458 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS; | |
1459 | } | |
1460 | ||
1461 | end: | |
1462 | return status; | |
1463 | } | |
1464 | ||
1465 | static | |
1466 | enum bt_msg_iter_status check_emit_msg_discarded_events( | |
1467 | struct bt_msg_iter *notit) | |
1468 | { | |
1469 | notit->state = STATE_EMIT_MSG_DISCARDED_EVENTS; | |
1470 | ||
1471 | if (notit->prev_packet_snapshots.discarded_events == UINT64_C(-1)) { | |
1472 | if (notit->snapshots.discarded_events == 0 || | |
1473 | notit->snapshots.discarded_events == UINT64_C(-1)) { | |
1474 | /* | |
1475 | * Stream's first packet with no discarded | |
1476 | * events or no information about discarded | |
1477 | * events: do not emit. | |
1478 | */ | |
1479 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; | |
1480 | } | |
1481 | } else { | |
1482 | /* | |
1483 | * If the previous packet has a value for this counter, | |
1484 | * then this counter is defined for the whole stream. | |
1485 | */ | |
1486 | BT_ASSERT(notit->snapshots.discarded_events != UINT64_C(-1)); | |
1487 | ||
1488 | if (notit->snapshots.discarded_events - | |
1489 | notit->prev_packet_snapshots.discarded_events == 0) { | |
1490 | /* | |
1491 | * No discarded events since previous packet: do | |
1492 | * not emit. | |
1493 | */ | |
1494 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; | |
1495 | } | |
1496 | } | |
1497 | ||
1498 | return BT_MSG_ITER_STATUS_OK; | |
1499 | } | |
1500 | ||
1501 | static | |
1502 | enum bt_msg_iter_status check_emit_msg_discarded_packets( | |
1503 | struct bt_msg_iter *notit) | |
1504 | { | |
1505 | notit->state = STATE_EMIT_MSG_DISCARDED_PACKETS; | |
1506 | ||
1507 | if (notit->prev_packet_snapshots.packets == UINT64_C(-1)) { | |
1508 | /* | |
1509 | * Stream's first packet or no information about | |
1510 | * discarded packets: do not emit. In other words, if | |
1511 | * this is the first packet and its sequence number is | |
1512 | * not 0, do not consider that packets were previously | |
1513 | * lost: we might be reading a partial stream (LTTng | |
1514 | * snapshot for example). | |
1515 | */ | |
1516 | notit->state = STATE_EMIT_MSG_PACKET_BEGINNING; | |
1517 | } else { | |
1518 | /* | |
1519 | * If the previous packet has a value for this counter, | |
1520 | * then this counter is defined for the whole stream. | |
1521 | */ | |
1522 | BT_ASSERT(notit->snapshots.packets != UINT64_C(-1)); | |
1523 | ||
1524 | if (notit->snapshots.packets - | |
1525 | notit->prev_packet_snapshots.packets <= 1) { | |
1526 | /* | |
1527 | * No discarded packets since previous packet: | |
1528 | * do not emit. | |
1529 | */ | |
1530 | notit->state = STATE_EMIT_MSG_PACKET_BEGINNING; | |
1531 | } | |
1532 | } | |
1533 | ||
1534 | return BT_MSG_ITER_STATUS_OK; | |
1535 | } | |
1536 | ||
1537 | static | |
1538 | enum bt_msg_iter_status check_emit_msg_stream_activity_end( | |
1539 | struct bt_msg_iter *notit) | |
1540 | { | |
1541 | if (notit->emit_stream_end_msg) { | |
1542 | notit->state = STATE_EMIT_MSG_STREAM_ACTIVITY_END; | |
1543 | } else { | |
1544 | notit->state = STATE_DONE; | |
1545 | } | |
1546 | ||
1547 | return BT_MSG_ITER_STATUS_OK; | |
1548 | } | |
1549 | ||
e98a2d6e | 1550 | static inline |
d6e69534 | 1551 | enum bt_msg_iter_status handle_state(struct bt_msg_iter *notit) |
e98a2d6e | 1552 | { |
d6e69534 | 1553 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
fdf0e7a0 | 1554 | const enum state state = notit->state; |
e98a2d6e | 1555 | |
fdf0e7a0 PP |
1556 | BT_LOGV("Handling state: notit-addr=%p, state=%s", |
1557 | notit, state_string(state)); | |
e98a2d6e PP |
1558 | |
1559 | // TODO: optimalize! | |
fdf0e7a0 | 1560 | switch (state) { |
e98a2d6e PP |
1561 | case STATE_INIT: |
1562 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1563 | break; | |
1564 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
1565 | status = read_packet_header_begin_state(notit); | |
1566 | break; | |
1567 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
1568 | status = read_packet_header_continue_state(notit); | |
1569 | break; | |
1570 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
1571 | status = after_packet_header_state(notit); | |
1572 | break; | |
1573 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
1574 | status = read_packet_context_begin_state(notit); | |
1575 | break; | |
1576 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
1577 | status = read_packet_context_continue_state(notit); | |
1578 | break; | |
1579 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
1580 | status = after_packet_context_state(notit); | |
1581 | break; | |
495490c5 PP |
1582 | case STATE_CHECK_EMIT_MSG_STREAM_BEGINNING: |
1583 | status = check_emit_msg_stream_beginning_state(notit); | |
1584 | break; | |
fc917f65 PP |
1585 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
1586 | notit->state = STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING; | |
1587 | break; | |
1588 | case STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING: | |
495490c5 PP |
1589 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS; |
1590 | break; | |
1591 | case STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS: | |
1592 | status = check_emit_msg_discarded_events(notit); | |
1593 | break; | |
1594 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
1595 | notit->state = STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS; | |
1596 | break; | |
1597 | case STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS: | |
1598 | status = check_emit_msg_discarded_packets(notit); | |
1599 | break; | |
1600 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
fc917f65 | 1601 | notit->state = STATE_EMIT_MSG_PACKET_BEGINNING; |
f42867e2 | 1602 | break; |
fc917f65 | 1603 | case STATE_EMIT_MSG_PACKET_BEGINNING: |
44c440bc | 1604 | notit->state = STATE_DSCOPE_EVENT_HEADER_BEGIN; |
e98a2d6e | 1605 | break; |
44c440bc | 1606 | case STATE_DSCOPE_EVENT_HEADER_BEGIN: |
e98a2d6e PP |
1607 | status = read_event_header_begin_state(notit); |
1608 | break; | |
44c440bc | 1609 | case STATE_DSCOPE_EVENT_HEADER_CONTINUE: |
e98a2d6e PP |
1610 | status = read_event_header_continue_state(notit); |
1611 | break; | |
44c440bc | 1612 | case STATE_AFTER_EVENT_HEADER: |
e98a2d6e PP |
1613 | status = after_event_header_state(notit); |
1614 | break; | |
44c440bc PP |
1615 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN: |
1616 | status = read_event_common_context_begin_state(notit); | |
e98a2d6e | 1617 | break; |
44c440bc PP |
1618 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE: |
1619 | status = read_event_common_context_continue_state(notit); | |
e98a2d6e | 1620 | break; |
44c440bc PP |
1621 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN: |
1622 | status = read_event_spec_context_begin_state(notit); | |
e98a2d6e | 1623 | break; |
44c440bc PP |
1624 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE: |
1625 | status = read_event_spec_context_continue_state(notit); | |
e98a2d6e PP |
1626 | break; |
1627 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
1628 | status = read_event_payload_begin_state(notit); | |
1629 | break; | |
1630 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
1631 | status = read_event_payload_continue_state(notit); | |
1632 | break; | |
d6e69534 | 1633 | case STATE_EMIT_MSG_EVENT: |
44c440bc | 1634 | notit->state = STATE_DSCOPE_EVENT_HEADER_BEGIN; |
e98a2d6e PP |
1635 | break; |
1636 | case STATE_SKIP_PACKET_PADDING: | |
1637 | status = skip_packet_padding_state(notit); | |
1638 | break; | |
fc917f65 | 1639 | case STATE_EMIT_MSG_PACKET_END_MULTI: |
e98a2d6e PP |
1640 | notit->state = STATE_SKIP_PACKET_PADDING; |
1641 | break; | |
fc917f65 | 1642 | case STATE_EMIT_MSG_PACKET_END_SINGLE: |
495490c5 PP |
1643 | notit->state = STATE_CHECK_EMIT_MSG_STREAM_ACTIVITY_END; |
1644 | break; | |
1645 | case STATE_CHECK_EMIT_MSG_STREAM_ACTIVITY_END: | |
1646 | status = check_emit_msg_stream_activity_end(notit); | |
fc917f65 PP |
1647 | break; |
1648 | case STATE_EMIT_MSG_STREAM_ACTIVITY_END: | |
1649 | notit->state = STATE_EMIT_MSG_STREAM_END; | |
1650 | break; | |
1651 | case STATE_EMIT_MSG_STREAM_END: | |
1652 | notit->state = STATE_DONE; | |
1653 | break; | |
1654 | case STATE_DONE: | |
1655 | break; | |
fdf0e7a0 | 1656 | default: |
d6e69534 | 1657 | BT_LOGD("Unknown CTF plugin message iterator state: " |
fdf0e7a0 PP |
1658 | "notit-addr=%p, state=%d", notit, notit->state); |
1659 | abort(); | |
e98a2d6e PP |
1660 | } |
1661 | ||
fdf0e7a0 PP |
1662 | BT_LOGV("Handled state: notit-addr=%p, status=%s, " |
1663 | "prev-state=%s, cur-state=%s", | |
d6e69534 | 1664 | notit, bt_msg_iter_status_string(status), |
fdf0e7a0 | 1665 | state_string(state), state_string(notit->state)); |
e98a2d6e PP |
1666 | return status; |
1667 | } | |
1668 | ||
f42867e2 | 1669 | BT_HIDDEN |
495490c5 | 1670 | void bt_msg_iter_reset_for_next_stream_file(struct bt_msg_iter *notit) |
e98a2d6e | 1671 | { |
f6ccaed9 | 1672 | BT_ASSERT(notit); |
d6e69534 | 1673 | BT_LOGD("Resetting message iterator: addr=%p", notit); |
e98a2d6e | 1674 | stack_clear(notit->stack); |
44c440bc PP |
1675 | notit->meta.sc = NULL; |
1676 | notit->meta.ec = NULL; | |
c5b9b441 PP |
1677 | BT_PACKET_PUT_REF_AND_RESET(notit->packet); |
1678 | BT_STREAM_PUT_REF_AND_RESET(notit->stream); | |
d6e69534 | 1679 | BT_MESSAGE_PUT_REF_AND_RESET(notit->event_msg); |
312c056a PP |
1680 | release_all_dscopes(notit); |
1681 | notit->cur_dscope_field = NULL; | |
1682 | ||
312c056a | 1683 | if (notit->packet_context_field) { |
40f4ba76 | 1684 | bt_packet_context_field_release(notit->packet_context_field); |
312c056a PP |
1685 | notit->packet_context_field = NULL; |
1686 | } | |
1687 | ||
e98a2d6e PP |
1688 | notit->buf.addr = NULL; |
1689 | notit->buf.sz = 0; | |
1690 | notit->buf.at = 0; | |
2b186c3e | 1691 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
1692 | notit->buf.packet_offset = 0; |
1693 | notit->state = STATE_INIT; | |
44c440bc PP |
1694 | notit->cur_exp_packet_content_size = -1; |
1695 | notit->cur_exp_packet_total_size = -1; | |
9e0c8dbb | 1696 | notit->cur_packet_offset = -1; |
44c440bc | 1697 | notit->cur_event_class_id = -1; |
495490c5 PP |
1698 | notit->snapshots.beginning_clock = UINT64_C(-1); |
1699 | notit->snapshots.end_clock = UINT64_C(-1); | |
1700 | } | |
1701 | ||
1702 | /** | |
1703 | * Resets the internal state of a CTF message iterator. | |
1704 | */ | |
1705 | BT_HIDDEN | |
1706 | void bt_msg_iter_reset(struct bt_msg_iter *notit) | |
1707 | { | |
1708 | bt_msg_iter_reset_for_next_stream_file(notit); | |
1709 | notit->cur_stream_class_id = -1; | |
44c440bc | 1710 | notit->cur_data_stream_id = -1; |
fc917f65 PP |
1711 | notit->emit_stream_begin_msg = true; |
1712 | notit->emit_stream_end_msg = true; | |
495490c5 PP |
1713 | notit->snapshots.discarded_events = UINT64_C(-1); |
1714 | notit->snapshots.packets = UINT64_C(-1); | |
1715 | notit->prev_packet_snapshots.discarded_events = UINT64_C(-1); | |
1716 | notit->prev_packet_snapshots.packets = UINT64_C(-1); | |
1717 | notit->prev_packet_snapshots.beginning_clock = UINT64_C(-1); | |
1718 | notit->prev_packet_snapshots.end_clock = UINT64_C(-1); | |
e98a2d6e PP |
1719 | } |
1720 | ||
2cf1d51e | 1721 | static |
d6e69534 | 1722 | int bt_msg_iter_switch_packet(struct bt_msg_iter *notit) |
2cf1d51e JG |
1723 | { |
1724 | int ret = 0; | |
1725 | ||
115de887 PP |
1726 | /* |
1727 | * We don't put the stream class here because we need to make | |
d6e69534 | 1728 | * sure that all the packets processed by the same message |
115de887 PP |
1729 | * iterator refer to the same stream class (the first one). |
1730 | */ | |
f6ccaed9 | 1731 | BT_ASSERT(notit); |
312c056a | 1732 | |
44c440bc PP |
1733 | if (notit->cur_exp_packet_total_size != -1) { |
1734 | notit->cur_packet_offset += notit->cur_exp_packet_total_size; | |
9e0c8dbb | 1735 | } |
312c056a | 1736 | |
9e0c8dbb JG |
1737 | BT_LOGV("Switching packet: notit-addr=%p, cur=%zu, " |
1738 | "packet-offset=%" PRId64, notit, notit->buf.at, | |
1739 | notit->cur_packet_offset); | |
2cf1d51e | 1740 | stack_clear(notit->stack); |
44c440bc | 1741 | notit->meta.ec = NULL; |
c5b9b441 | 1742 | BT_PACKET_PUT_REF_AND_RESET(notit->packet); |
d6e69534 | 1743 | BT_MESSAGE_PUT_REF_AND_RESET(notit->event_msg); |
312c056a PP |
1744 | release_all_dscopes(notit); |
1745 | notit->cur_dscope_field = NULL; | |
2cf1d51e JG |
1746 | |
1747 | /* | |
1748 | * Adjust current buffer so that addr points to the beginning of the new | |
1749 | * packet. | |
1750 | */ | |
1751 | if (notit->buf.addr) { | |
1752 | size_t consumed_bytes = (size_t) (notit->buf.at / CHAR_BIT); | |
1753 | ||
1754 | /* Packets are assumed to start on a byte frontier. */ | |
1755 | if (notit->buf.at % CHAR_BIT) { | |
fdf0e7a0 PP |
1756 | BT_LOGW("Cannot switch packet: current position is not a multiple of 8: " |
1757 | "notit-addr=%p, cur=%zu", notit, notit->buf.at); | |
2cf1d51e JG |
1758 | ret = -1; |
1759 | goto end; | |
1760 | } | |
1761 | ||
1762 | notit->buf.addr += consumed_bytes; | |
1763 | notit->buf.sz -= consumed_bytes; | |
1764 | notit->buf.at = 0; | |
1765 | notit->buf.packet_offset = 0; | |
fdf0e7a0 PP |
1766 | BT_LOGV("Adjusted buffer: addr=%p, size=%zu", |
1767 | notit->buf.addr, notit->buf.sz); | |
2cf1d51e JG |
1768 | } |
1769 | ||
44c440bc PP |
1770 | notit->cur_exp_packet_content_size = -1; |
1771 | notit->cur_exp_packet_total_size = -1; | |
1772 | notit->cur_stream_class_id = -1; | |
1773 | notit->cur_event_class_id = -1; | |
1774 | notit->cur_data_stream_id = -1; | |
495490c5 | 1775 | notit->prev_packet_snapshots = notit->snapshots; |
44c440bc PP |
1776 | notit->snapshots.discarded_events = UINT64_C(-1); |
1777 | notit->snapshots.packets = UINT64_C(-1); | |
1778 | notit->snapshots.beginning_clock = UINT64_C(-1); | |
1779 | notit->snapshots.end_clock = UINT64_C(-1); | |
fdf0e7a0 | 1780 | |
2cf1d51e JG |
1781 | end: |
1782 | return ret; | |
1783 | } | |
1784 | ||
e98a2d6e | 1785 | static |
d6e69534 | 1786 | bt_field *borrow_next_field(struct bt_msg_iter *notit) |
e98a2d6e | 1787 | { |
b19ff26f PP |
1788 | bt_field *next_field = NULL; |
1789 | bt_field *base_field; | |
1790 | const bt_field_class *base_fc; | |
e98a2d6e PP |
1791 | size_t index; |
1792 | ||
f6ccaed9 | 1793 | BT_ASSERT(!stack_empty(notit->stack)); |
e98a2d6e PP |
1794 | index = stack_top(notit->stack)->index; |
1795 | base_field = stack_top(notit->stack)->base; | |
f6ccaed9 | 1796 | BT_ASSERT(base_field); |
40f4ba76 | 1797 | base_fc = bt_field_borrow_class_const(base_field); |
5cd6d0e5 | 1798 | BT_ASSERT(base_fc); |
e98a2d6e | 1799 | |
40f4ba76 | 1800 | switch (bt_field_class_get_type(base_fc)) { |
864cad70 | 1801 | case BT_FIELD_CLASS_TYPE_STRUCTURE: |
f42867e2 | 1802 | { |
44c440bc | 1803 | BT_ASSERT(index < |
5cd6d0e5 | 1804 | bt_field_class_structure_get_member_count( |
40f4ba76 PP |
1805 | bt_field_borrow_class_const( |
1806 | base_field))); | |
e5be10ef | 1807 | next_field = |
40f4ba76 | 1808 | bt_field_structure_borrow_member_field_by_index( |
e5be10ef | 1809 | base_field, index); |
e98a2d6e | 1810 | break; |
f42867e2 | 1811 | } |
864cad70 PP |
1812 | case BT_FIELD_CLASS_TYPE_STATIC_ARRAY: |
1813 | case BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY: | |
40f4ba76 PP |
1814 | BT_ASSERT(index < bt_field_array_get_length(base_field)); |
1815 | next_field = bt_field_array_borrow_element_field_by_index( | |
44c440bc | 1816 | base_field, index); |
e98a2d6e | 1817 | break; |
864cad70 | 1818 | case BT_FIELD_CLASS_TYPE_VARIANT: |
44c440bc | 1819 | BT_ASSERT(index == 0); |
40f4ba76 | 1820 | next_field = bt_field_variant_borrow_selected_option_field( |
44c440bc | 1821 | base_field); |
e98a2d6e PP |
1822 | break; |
1823 | default: | |
0fbb9a9f | 1824 | abort(); |
e98a2d6e PP |
1825 | } |
1826 | ||
44c440bc | 1827 | BT_ASSERT(next_field); |
e98a2d6e PP |
1828 | return next_field; |
1829 | } | |
1830 | ||
c44c3e70 | 1831 | static |
d6e69534 | 1832 | void update_default_clock(struct bt_msg_iter *notit, uint64_t new_val, |
44c440bc | 1833 | uint64_t new_val_size) |
c44c3e70 | 1834 | { |
44c440bc | 1835 | uint64_t new_val_mask; |
c44c3e70 | 1836 | uint64_t cur_value_masked; |
c44c3e70 | 1837 | |
44c440bc | 1838 | BT_ASSERT(new_val_size > 0); |
c44c3e70 JG |
1839 | |
1840 | /* | |
1841 | * Special case for a 64-bit new value, which is the limit | |
1842 | * of a clock value as of this version: overwrite the | |
1843 | * current value directly. | |
1844 | */ | |
44c440bc | 1845 | if (new_val_size == 64) { |
605e1019 | 1846 | notit->default_clock_snapshot = new_val; |
c44c3e70 JG |
1847 | goto end; |
1848 | } | |
1849 | ||
44c440bc | 1850 | new_val_mask = (1ULL << new_val_size) - 1; |
605e1019 | 1851 | cur_value_masked = notit->default_clock_snapshot & new_val_mask; |
c44c3e70 | 1852 | |
44c440bc | 1853 | if (new_val < cur_value_masked) { |
c44c3e70 JG |
1854 | /* |
1855 | * It looks like a wrap happened on the number of bits | |
1856 | * of the requested new value. Assume that the clock | |
1857 | * value wrapped only one time. | |
1858 | */ | |
605e1019 | 1859 | notit->default_clock_snapshot += new_val_mask + 1; |
c44c3e70 JG |
1860 | } |
1861 | ||
1862 | /* Clear the low bits of the current clock value. */ | |
605e1019 | 1863 | notit->default_clock_snapshot &= ~new_val_mask; |
c44c3e70 JG |
1864 | |
1865 | /* Set the low bits of the current clock value. */ | |
605e1019 | 1866 | notit->default_clock_snapshot |= new_val; |
d1e46835 | 1867 | |
c44c3e70 | 1868 | end: |
44c440bc | 1869 | BT_LOGV("Updated default clock's value from integer field's value: " |
605e1019 | 1870 | "value=%" PRIu64, notit->default_clock_snapshot); |
c44c3e70 JG |
1871 | } |
1872 | ||
1873 | static | |
5cd6d0e5 PP |
1874 | enum bt_bfcr_status bfcr_unsigned_int_cb(uint64_t value, |
1875 | struct ctf_field_class *fc, void *data) | |
c44c3e70 | 1876 | { |
d6e69534 | 1877 | struct bt_msg_iter *notit = data; |
5cd6d0e5 | 1878 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 1879 | bt_field *field = NULL; |
5cd6d0e5 | 1880 | struct ctf_field_class_int *int_fc = (void *) fc; |
c44c3e70 | 1881 | |
5cd6d0e5 PP |
1882 | BT_LOGV("Unsigned integer function called from BFCR: " |
1883 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
1884 | "fc-type=%d, fc-in-ir=%d, value=%" PRIu64, |
1885 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
312c056a | 1886 | |
5cd6d0e5 | 1887 | if (likely(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE)) { |
44c440bc | 1888 | goto update_def_clock; |
c44c3e70 JG |
1889 | } |
1890 | ||
5cd6d0e5 PP |
1891 | switch (int_fc->meaning) { |
1892 | case CTF_FIELD_CLASS_MEANING_EVENT_CLASS_ID: | |
44c440bc PP |
1893 | notit->cur_event_class_id = value; |
1894 | break; | |
5cd6d0e5 | 1895 | case CTF_FIELD_CLASS_MEANING_DATA_STREAM_ID: |
44c440bc PP |
1896 | notit->cur_data_stream_id = value; |
1897 | break; | |
5cd6d0e5 | 1898 | case CTF_FIELD_CLASS_MEANING_PACKET_BEGINNING_TIME: |
44c440bc PP |
1899 | notit->snapshots.beginning_clock = value; |
1900 | break; | |
5cd6d0e5 | 1901 | case CTF_FIELD_CLASS_MEANING_PACKET_END_TIME: |
44c440bc PP |
1902 | notit->snapshots.end_clock = value; |
1903 | break; | |
5cd6d0e5 | 1904 | case CTF_FIELD_CLASS_MEANING_STREAM_CLASS_ID: |
44c440bc PP |
1905 | notit->cur_stream_class_id = value; |
1906 | break; | |
5cd6d0e5 | 1907 | case CTF_FIELD_CLASS_MEANING_MAGIC: |
44c440bc PP |
1908 | if (value != 0xc1fc1fc1) { |
1909 | BT_LOGW("Invalid CTF magic number: notit-addr=%p, " | |
1910 | "magic=%" PRIx64, notit, value); | |
5cd6d0e5 | 1911 | status = BT_BFCR_STATUS_ERROR; |
c44c3e70 JG |
1912 | goto end; |
1913 | } | |
fdf0e7a0 | 1914 | |
44c440bc | 1915 | break; |
5cd6d0e5 | 1916 | case CTF_FIELD_CLASS_MEANING_PACKET_COUNTER_SNAPSHOT: |
44c440bc PP |
1917 | notit->snapshots.packets = value; |
1918 | break; | |
5cd6d0e5 | 1919 | case CTF_FIELD_CLASS_MEANING_DISC_EV_REC_COUNTER_SNAPSHOT: |
44c440bc PP |
1920 | notit->snapshots.discarded_events = value; |
1921 | break; | |
5cd6d0e5 | 1922 | case CTF_FIELD_CLASS_MEANING_EXP_PACKET_TOTAL_SIZE: |
44c440bc PP |
1923 | notit->cur_exp_packet_total_size = value; |
1924 | break; | |
5cd6d0e5 | 1925 | case CTF_FIELD_CLASS_MEANING_EXP_PACKET_CONTENT_SIZE: |
44c440bc PP |
1926 | notit->cur_exp_packet_content_size = value; |
1927 | break; | |
1928 | default: | |
1929 | abort(); | |
c44c3e70 JG |
1930 | } |
1931 | ||
44c440bc | 1932 | update_def_clock: |
5cd6d0e5 PP |
1933 | if (unlikely(int_fc->mapped_clock_class)) { |
1934 | update_default_clock(notit, value, int_fc->base.size); | |
44c440bc | 1935 | } |
c44c3e70 | 1936 | |
5cd6d0e5 | 1937 | if (unlikely(int_fc->storing_index >= 0)) { |
44c440bc | 1938 | g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 1939 | (uint64_t) int_fc->storing_index) = value; |
44c440bc | 1940 | } |
e98a2d6e | 1941 | |
5cd6d0e5 | 1942 | if (unlikely(!fc->in_ir)) { |
312c056a | 1943 | goto end; |
e98a2d6e PP |
1944 | } |
1945 | ||
44c440bc PP |
1946 | field = borrow_next_field(notit); |
1947 | BT_ASSERT(field); | |
40f4ba76 PP |
1948 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
1949 | BT_ASSERT(bt_field_get_class_type(field) == | |
1950 | BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER || | |
1951 | bt_field_get_class_type(field) == | |
1952 | BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION); | |
1953 | bt_field_unsigned_integer_set_value(field, value); | |
e98a2d6e | 1954 | stack_top(notit->stack)->index++; |
fdf0e7a0 | 1955 | |
312c056a | 1956 | end: |
e98a2d6e PP |
1957 | return status; |
1958 | } | |
1959 | ||
5f870343 | 1960 | static |
5cd6d0e5 PP |
1961 | enum bt_bfcr_status bfcr_unsigned_int_char_cb(uint64_t value, |
1962 | struct ctf_field_class *fc, void *data) | |
5f870343 | 1963 | { |
44c440bc | 1964 | int ret; |
d6e69534 | 1965 | struct bt_msg_iter *notit = data; |
5cd6d0e5 | 1966 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 1967 | bt_field *string_field = NULL; |
5cd6d0e5 | 1968 | struct ctf_field_class_int *int_fc = (void *) fc; |
44c440bc | 1969 | char str[2] = {'\0', '\0'}; |
5f870343 | 1970 | |
5cd6d0e5 PP |
1971 | BT_LOGV("Unsigned integer character function called from BFCR: " |
1972 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
1973 | "fc-type=%d, fc-in-ir=%d, value=%" PRIu64, |
1974 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
5cd6d0e5 PP |
1975 | BT_ASSERT(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE); |
1976 | BT_ASSERT(!int_fc->mapped_clock_class); | |
1977 | BT_ASSERT(int_fc->storing_index < 0); | |
312c056a | 1978 | |
5cd6d0e5 | 1979 | if (unlikely(!fc->in_ir)) { |
44c440bc PP |
1980 | goto end; |
1981 | } | |
5f870343 | 1982 | |
44c440bc | 1983 | if (notit->done_filling_string) { |
5f870343 JG |
1984 | goto end; |
1985 | } | |
1986 | ||
44c440bc PP |
1987 | if (value == 0) { |
1988 | notit->done_filling_string = true; | |
5f870343 JG |
1989 | goto end; |
1990 | } | |
1991 | ||
44c440bc | 1992 | string_field = stack_top(notit->stack)->base; |
40f4ba76 PP |
1993 | BT_ASSERT(bt_field_get_class_type(string_field) == |
1994 | BT_FIELD_CLASS_TYPE_STRING); | |
44c440bc PP |
1995 | |
1996 | /* Append character */ | |
1997 | str[0] = (char) value; | |
40f4ba76 | 1998 | ret = bt_field_string_append_with_length(string_field, str, 1); |
44c440bc PP |
1999 | if (ret) { |
2000 | BT_LOGE("Cannot append character to string field's value: " | |
2001 | "notit-addr=%p, field-addr=%p, ret=%d", | |
2002 | notit, string_field, ret); | |
5cd6d0e5 | 2003 | status = BT_BFCR_STATUS_ERROR; |
44c440bc PP |
2004 | goto end; |
2005 | } | |
312c056a | 2006 | |
5f870343 JG |
2007 | end: |
2008 | return status; | |
2009 | } | |
2010 | ||
2011 | static | |
5cd6d0e5 PP |
2012 | enum bt_bfcr_status bfcr_signed_int_cb(int64_t value, |
2013 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2014 | { |
5cd6d0e5 | 2015 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2016 | bt_field *field = NULL; |
d6e69534 | 2017 | struct bt_msg_iter *notit = data; |
5cd6d0e5 | 2018 | struct ctf_field_class_int *int_fc = (void *) fc; |
e98a2d6e | 2019 | |
5cd6d0e5 PP |
2020 | BT_LOGV("Signed integer function called from BFCR: " |
2021 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2022 | "fc-type=%d, fc-in-ir=%d, value=%" PRId64, |
2023 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
5cd6d0e5 | 2024 | BT_ASSERT(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE); |
44c440bc | 2025 | |
5cd6d0e5 | 2026 | if (unlikely(int_fc->storing_index >= 0)) { |
44c440bc | 2027 | g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 2028 | (uint64_t) int_fc->storing_index) = (uint64_t) value; |
44c440bc PP |
2029 | } |
2030 | ||
5cd6d0e5 | 2031 | if (unlikely(!fc->in_ir)) { |
312c056a | 2032 | goto end; |
e98a2d6e PP |
2033 | } |
2034 | ||
44c440bc PP |
2035 | field = borrow_next_field(notit); |
2036 | BT_ASSERT(field); | |
40f4ba76 PP |
2037 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
2038 | BT_ASSERT(bt_field_get_class_type(field) == | |
2039 | BT_FIELD_CLASS_TYPE_SIGNED_INTEGER || | |
2040 | bt_field_get_class_type(field) == | |
2041 | BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION); | |
2042 | bt_field_signed_integer_set_value(field, value); | |
e98a2d6e | 2043 | stack_top(notit->stack)->index++; |
fdf0e7a0 | 2044 | |
312c056a | 2045 | end: |
e98a2d6e PP |
2046 | return status; |
2047 | } | |
2048 | ||
2049 | static | |
5cd6d0e5 PP |
2050 | enum bt_bfcr_status bfcr_floating_point_cb(double value, |
2051 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2052 | { |
5cd6d0e5 | 2053 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2054 | bt_field *field = NULL; |
d6e69534 | 2055 | struct bt_msg_iter *notit = data; |
e98a2d6e | 2056 | |
5cd6d0e5 PP |
2057 | BT_LOGV("Floating point number function called from BFCR: " |
2058 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2059 | "fc-type=%d, fc-in-ir=%d, value=%f", |
2060 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
41693723 PP |
2061 | |
2062 | if (unlikely(!fc->in_ir)) { | |
2063 | goto end; | |
2064 | } | |
2065 | ||
312c056a | 2066 | field = borrow_next_field(notit); |
44c440bc | 2067 | BT_ASSERT(field); |
40f4ba76 PP |
2068 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
2069 | BT_ASSERT(bt_field_get_class_type(field) == | |
2070 | BT_FIELD_CLASS_TYPE_REAL); | |
2071 | bt_field_real_set_value(field, value); | |
e98a2d6e | 2072 | stack_top(notit->stack)->index++; |
41693723 PP |
2073 | |
2074 | end: | |
e98a2d6e PP |
2075 | return status; |
2076 | } | |
2077 | ||
2078 | static | |
5cd6d0e5 PP |
2079 | enum bt_bfcr_status bfcr_string_begin_cb( |
2080 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2081 | { |
b19ff26f | 2082 | bt_field *field = NULL; |
d6e69534 | 2083 | struct bt_msg_iter *notit = data; |
e98a2d6e PP |
2084 | int ret; |
2085 | ||
5cd6d0e5 PP |
2086 | BT_LOGV("String (beginning) function called from BFCR: " |
2087 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2088 | "fc-type=%d, fc-in-ir=%d", |
2089 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
e98a2d6e | 2090 | |
41693723 PP |
2091 | if (unlikely(!fc->in_ir)) { |
2092 | goto end; | |
2093 | } | |
2094 | ||
44c440bc PP |
2095 | field = borrow_next_field(notit); |
2096 | BT_ASSERT(field); | |
40f4ba76 PP |
2097 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
2098 | BT_ASSERT(bt_field_get_class_type(field) == | |
2099 | BT_FIELD_CLASS_TYPE_STRING); | |
2100 | ret = bt_field_string_clear(field); | |
312c056a PP |
2101 | BT_ASSERT(ret == 0); |
2102 | ||
e98a2d6e | 2103 | /* |
5cd6d0e5 PP |
2104 | * Push on stack. Not a compound class per se, but we know that |
2105 | * only bfcr_string_cb() may be called between this call and a | |
2106 | * subsequent call to bfcr_string_end_cb(). | |
e98a2d6e | 2107 | */ |
44c440bc | 2108 | stack_push(notit->stack, field); |
41693723 PP |
2109 | |
2110 | end: | |
5cd6d0e5 | 2111 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2112 | } |
2113 | ||
2114 | static | |
5cd6d0e5 PP |
2115 | enum bt_bfcr_status bfcr_string_cb(const char *value, |
2116 | size_t len, struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2117 | { |
5cd6d0e5 | 2118 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
b19ff26f | 2119 | bt_field *field = NULL; |
d6e69534 | 2120 | struct bt_msg_iter *notit = data; |
e98a2d6e PP |
2121 | int ret; |
2122 | ||
5cd6d0e5 PP |
2123 | BT_LOGV("String (substring) function called from BFCR: " |
2124 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2125 | "fc-type=%d, fc-in-ir=%d, string-length=%zu", |
2126 | notit, notit->bfcr, fc, fc->type, fc->in_ir, | |
fdf0e7a0 | 2127 | len); |
41693723 PP |
2128 | |
2129 | if (unlikely(!fc->in_ir)) { | |
2130 | goto end; | |
2131 | } | |
2132 | ||
e98a2d6e | 2133 | field = stack_top(notit->stack)->base; |
f6ccaed9 | 2134 | BT_ASSERT(field); |
e98a2d6e | 2135 | |
312c056a | 2136 | /* Append current substring */ |
40f4ba76 | 2137 | ret = bt_field_string_append_with_length(field, value, len); |
e98a2d6e | 2138 | if (ret) { |
fdf0e7a0 PP |
2139 | BT_LOGE("Cannot append substring to string field's value: " |
2140 | "notit-addr=%p, field-addr=%p, string-length=%zu, " | |
2141 | "ret=%d", notit, field, len, ret); | |
5cd6d0e5 | 2142 | status = BT_BFCR_STATUS_ERROR; |
e98a2d6e PP |
2143 | goto end; |
2144 | } | |
2145 | ||
2146 | end: | |
2147 | return status; | |
2148 | } | |
2149 | ||
2150 | static | |
5cd6d0e5 PP |
2151 | enum bt_bfcr_status bfcr_string_end_cb( |
2152 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2153 | { |
d6e69534 | 2154 | struct bt_msg_iter *notit = data; |
e98a2d6e | 2155 | |
5cd6d0e5 PP |
2156 | BT_LOGV("String (end) function called from BFCR: " |
2157 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2158 | "fc-type=%d, fc-in-ir=%d", |
2159 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
41693723 PP |
2160 | |
2161 | if (unlikely(!fc->in_ir)) { | |
2162 | goto end; | |
2163 | } | |
fdf0e7a0 | 2164 | |
e98a2d6e PP |
2165 | /* Pop string field */ |
2166 | stack_pop(notit->stack); | |
2167 | ||
2168 | /* Go to next field */ | |
2169 | stack_top(notit->stack)->index++; | |
41693723 PP |
2170 | |
2171 | end: | |
5cd6d0e5 | 2172 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2173 | } |
2174 | ||
5cd6d0e5 PP |
2175 | enum bt_bfcr_status bfcr_compound_begin_cb( |
2176 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2177 | { |
d6e69534 | 2178 | struct bt_msg_iter *notit = data; |
b19ff26f | 2179 | bt_field *field; |
e98a2d6e | 2180 | |
5cd6d0e5 PP |
2181 | BT_LOGV("Compound (beginning) function called from BFCR: " |
2182 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2183 | "fc-type=%d, fc-in-ir=%d", |
2184 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
44c440bc | 2185 | |
5cd6d0e5 | 2186 | if (!fc->in_ir) { |
44c440bc PP |
2187 | goto end; |
2188 | } | |
fdf0e7a0 | 2189 | |
312c056a | 2190 | /* Borrow field */ |
e98a2d6e | 2191 | if (stack_empty(notit->stack)) { |
312c056a PP |
2192 | /* Root: already set by read_dscope_begin_state() */ |
2193 | field = notit->cur_dscope_field; | |
e98a2d6e | 2194 | } else { |
312c056a | 2195 | field = borrow_next_field(notit); |
44c440bc | 2196 | BT_ASSERT(field); |
e98a2d6e PP |
2197 | } |
2198 | ||
2199 | /* Push field */ | |
f6ccaed9 | 2200 | BT_ASSERT(field); |
40f4ba76 | 2201 | BT_ASSERT(bt_field_borrow_class_const(field) == fc->ir_fc); |
44c440bc PP |
2202 | stack_push(notit->stack, field); |
2203 | ||
2204 | /* | |
5cd6d0e5 | 2205 | * Change BFCR "unsigned int" callback if it's a text |
44c440bc PP |
2206 | * array/sequence. |
2207 | */ | |
864cad70 PP |
2208 | if (fc->type == CTF_FIELD_CLASS_TYPE_ARRAY || |
2209 | fc->type == CTF_FIELD_CLASS_TYPE_SEQUENCE) { | |
5cd6d0e5 | 2210 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
44c440bc | 2211 | |
5cd6d0e5 | 2212 | if (array_fc->is_text) { |
44c440bc PP |
2213 | int ret; |
2214 | ||
40f4ba76 PP |
2215 | BT_ASSERT(bt_field_get_class_type(field) == |
2216 | BT_FIELD_CLASS_TYPE_STRING); | |
44c440bc | 2217 | notit->done_filling_string = false; |
40f4ba76 | 2218 | ret = bt_field_string_clear(field); |
44c440bc | 2219 | BT_ASSERT(ret == 0); |
5cd6d0e5 PP |
2220 | bt_bfcr_set_unsigned_int_cb(notit->bfcr, |
2221 | bfcr_unsigned_int_char_cb); | |
44c440bc | 2222 | } |
e98a2d6e PP |
2223 | } |
2224 | ||
2225 | end: | |
5cd6d0e5 | 2226 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2227 | } |
2228 | ||
5cd6d0e5 PP |
2229 | enum bt_bfcr_status bfcr_compound_end_cb( |
2230 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2231 | { |
d6e69534 | 2232 | struct bt_msg_iter *notit = data; |
e98a2d6e | 2233 | |
5cd6d0e5 PP |
2234 | BT_LOGV("Compound (end) function called from BFCR: " |
2235 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2236 | "fc-type=%d, fc-in-ir=%d", |
2237 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
e98a2d6e | 2238 | |
5cd6d0e5 | 2239 | if (!fc->in_ir) { |
e98a2d6e PP |
2240 | goto end; |
2241 | } | |
2242 | ||
44c440bc | 2243 | BT_ASSERT(!stack_empty(notit->stack)); |
40f4ba76 | 2244 | BT_ASSERT(bt_field_borrow_class_const(stack_top(notit->stack)->base) == |
5cd6d0e5 | 2245 | fc->ir_fc); |
e98a2d6e | 2246 | |
44c440bc | 2247 | /* |
5cd6d0e5 | 2248 | * Reset BFCR "unsigned int" callback if it's a text |
44c440bc PP |
2249 | * array/sequence. |
2250 | */ | |
864cad70 PP |
2251 | if (fc->type == CTF_FIELD_CLASS_TYPE_ARRAY || |
2252 | fc->type == CTF_FIELD_CLASS_TYPE_SEQUENCE) { | |
5cd6d0e5 | 2253 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
44c440bc | 2254 | |
5cd6d0e5 | 2255 | if (array_fc->is_text) { |
864cad70 | 2256 | BT_ASSERT(bt_field_get_class_type( |
40f4ba76 | 2257 | stack_top(notit->stack)->base) == |
e5be10ef | 2258 | BT_FIELD_CLASS_TYPE_STRING); |
5cd6d0e5 PP |
2259 | bt_bfcr_set_unsigned_int_cb(notit->bfcr, |
2260 | bfcr_unsigned_int_cb); | |
e98a2d6e | 2261 | } |
44c440bc | 2262 | } |
e98a2d6e | 2263 | |
44c440bc PP |
2264 | /* Pop stack */ |
2265 | stack_pop(notit->stack); | |
e98a2d6e | 2266 | |
44c440bc PP |
2267 | /* If the stack is not empty, increment the base's index */ |
2268 | if (!stack_empty(notit->stack)) { | |
2269 | stack_top(notit->stack)->index++; | |
e98a2d6e PP |
2270 | } |
2271 | ||
2272 | end: | |
5cd6d0e5 | 2273 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2274 | } |
2275 | ||
2276 | static | |
5cd6d0e5 | 2277 | int64_t bfcr_get_sequence_length_cb(struct ctf_field_class *fc, void *data) |
e98a2d6e | 2278 | { |
b19ff26f | 2279 | bt_field *seq_field; |
d6e69534 | 2280 | struct bt_msg_iter *notit = data; |
5cd6d0e5 | 2281 | struct ctf_field_class_sequence *seq_fc = (void *) fc; |
44c440bc PP |
2282 | int64_t length = -1; |
2283 | int ret; | |
e98a2d6e | 2284 | |
44c440bc | 2285 | length = (uint64_t) g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 2286 | seq_fc->stored_length_index); |
fdf0e7a0 | 2287 | seq_field = stack_top(notit->stack)->base; |
44c440bc | 2288 | BT_ASSERT(seq_field); |
40f4ba76 | 2289 | ret = bt_field_dynamic_array_set_length(seq_field, (uint64_t) length); |
44c440bc PP |
2290 | if (ret) { |
2291 | BT_LOGE("Cannot set dynamic array field's length field: " | |
2292 | "notit-addr=%p, field-addr=%p, " | |
2293 | "length=%" PRIu64, notit, seq_field, length); | |
2cf1d51e | 2294 | } |
fdf0e7a0 | 2295 | |
44c440bc | 2296 | return length; |
e98a2d6e PP |
2297 | } |
2298 | ||
2299 | static | |
5cd6d0e5 PP |
2300 | struct ctf_field_class *bfcr_borrow_variant_selected_field_class_cb( |
2301 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2302 | { |
312c056a | 2303 | int ret; |
44c440bc PP |
2304 | uint64_t i; |
2305 | int64_t option_index = -1; | |
d6e69534 | 2306 | struct bt_msg_iter *notit = data; |
5cd6d0e5 PP |
2307 | struct ctf_field_class_variant *var_fc = (void *) fc; |
2308 | struct ctf_named_field_class *selected_option = NULL; | |
2309 | struct ctf_field_class *ret_fc = NULL; | |
44c440bc PP |
2310 | union { |
2311 | uint64_t u; | |
2312 | int64_t i; | |
2313 | } tag; | |
2314 | ||
2315 | /* Get variant's tag */ | |
2316 | tag.u = g_array_index(notit->stored_values, uint64_t, | |
5cd6d0e5 | 2317 | var_fc->stored_tag_index); |
e98a2d6e PP |
2318 | |
2319 | /* | |
44c440bc | 2320 | * Check each range to find the selected option's index. |
e98a2d6e | 2321 | */ |
5cd6d0e5 PP |
2322 | if (var_fc->tag_fc->base.is_signed) { |
2323 | for (i = 0; i < var_fc->ranges->len; i++) { | |
2324 | struct ctf_field_class_variant_range *range = | |
2325 | ctf_field_class_variant_borrow_range_by_index( | |
2326 | var_fc, i); | |
44c440bc PP |
2327 | |
2328 | if (tag.i >= range->range.lower.i && | |
2329 | tag.i <= range->range.upper.i) { | |
2330 | option_index = (int64_t) range->option_index; | |
2331 | break; | |
2332 | } | |
2333 | } | |
312c056a | 2334 | } else { |
5cd6d0e5 PP |
2335 | for (i = 0; i < var_fc->ranges->len; i++) { |
2336 | struct ctf_field_class_variant_range *range = | |
2337 | ctf_field_class_variant_borrow_range_by_index( | |
2338 | var_fc, i); | |
44c440bc PP |
2339 | |
2340 | if (tag.u >= range->range.lower.u && | |
2341 | tag.u <= range->range.upper.u) { | |
2342 | option_index = (int64_t) range->option_index; | |
2343 | break; | |
2344 | } | |
2345 | } | |
312c056a PP |
2346 | } |
2347 | ||
44c440bc | 2348 | if (option_index < 0) { |
5cd6d0e5 PP |
2349 | BT_LOGW("Cannot find variant field class's option: " |
2350 | "notit-addr=%p, var-fc-addr=%p, u-tag=%" PRIu64 ", " | |
2351 | "i-tag=%" PRId64, notit, var_fc, tag.u, tag.i); | |
e98a2d6e PP |
2352 | goto end; |
2353 | } | |
2354 | ||
5cd6d0e5 PP |
2355 | selected_option = ctf_field_class_variant_borrow_option_by_index( |
2356 | var_fc, (uint64_t) option_index); | |
e98a2d6e | 2357 | |
5cd6d0e5 | 2358 | if (selected_option->fc->in_ir) { |
b19ff26f | 2359 | bt_field *var_field = stack_top(notit->stack)->base; |
1556a1af | 2360 | |
40f4ba76 | 2361 | ret = bt_field_variant_select_option_field( |
e5be10ef | 2362 | var_field, option_index); |
e22b45d0 | 2363 | if (ret) { |
44c440bc PP |
2364 | BT_LOGW("Cannot select variant field's option field: " |
2365 | "notit-addr=%p, var-field-addr=%p, " | |
2366 | "opt-index=%" PRId64, notit, var_field, | |
2367 | option_index); | |
1556a1af JG |
2368 | goto end; |
2369 | } | |
af87daef PP |
2370 | } |
2371 | ||
5cd6d0e5 | 2372 | ret_fc = selected_option->fc; |
e22b45d0 | 2373 | |
af87daef | 2374 | end: |
5cd6d0e5 | 2375 | return ret_fc; |
44c440bc PP |
2376 | } |
2377 | ||
f42867e2 | 2378 | static |
fc917f65 | 2379 | void create_msg_stream_beginning(struct bt_msg_iter *notit, |
d6e69534 | 2380 | bt_message **message) |
f42867e2 | 2381 | { |
d6e69534 | 2382 | bt_message *ret = NULL; |
f42867e2 | 2383 | |
f42867e2 | 2384 | BT_ASSERT(notit->stream); |
d6e69534 PP |
2385 | BT_ASSERT(notit->msg_iter); |
2386 | ret = bt_message_stream_beginning_create(notit->msg_iter, | |
f0010051 | 2387 | notit->stream); |
f42867e2 | 2388 | if (!ret) { |
d6e69534 | 2389 | BT_LOGE("Cannot create stream beginning message: " |
f42867e2 PP |
2390 | "notit-addr=%p, stream-addr=%p", |
2391 | notit, notit->stream); | |
2392 | return; | |
2393 | } | |
2394 | ||
d6e69534 | 2395 | *message = ret; |
f42867e2 PP |
2396 | } |
2397 | ||
2398 | static | |
fc917f65 PP |
2399 | void create_msg_stream_activity_beginning(struct bt_msg_iter *notit, |
2400 | bt_message **message) | |
2401 | { | |
2402 | bt_message *ret = NULL; | |
2403 | ||
2404 | BT_ASSERT(notit->stream); | |
2405 | BT_ASSERT(notit->msg_iter); | |
2406 | ret = bt_message_stream_activity_beginning_create(notit->msg_iter, | |
2407 | notit->stream); | |
2408 | if (!ret) { | |
2409 | BT_LOGE("Cannot create stream activity beginning message: " | |
2410 | "notit-addr=%p, stream-addr=%p", | |
2411 | notit, notit->stream); | |
2412 | return; | |
2413 | } | |
2414 | ||
2415 | *message = ret; | |
2416 | } | |
2417 | ||
2418 | static | |
2419 | void create_msg_stream_activity_end(struct bt_msg_iter *notit, | |
d6e69534 | 2420 | bt_message **message) |
fc917f65 PP |
2421 | { |
2422 | bt_message *ret = NULL; | |
2423 | ||
2424 | if (!notit->stream) { | |
2425 | BT_LOGE("Cannot create stream for stream message: " | |
2426 | "notit-addr=%p", notit); | |
2427 | return; | |
2428 | } | |
2429 | ||
2430 | BT_ASSERT(notit->stream); | |
2431 | BT_ASSERT(notit->msg_iter); | |
2432 | ret = bt_message_stream_activity_end_create(notit->msg_iter, | |
2433 | notit->stream); | |
2434 | if (!ret) { | |
2435 | BT_LOGE("Cannot create stream activity end message: " | |
2436 | "notit-addr=%p, stream-addr=%p", | |
2437 | notit, notit->stream); | |
2438 | return; | |
2439 | } | |
2440 | ||
2441 | *message = ret; | |
2442 | } | |
2443 | ||
2444 | static | |
2445 | void create_msg_stream_end(struct bt_msg_iter *notit, bt_message **message) | |
f42867e2 | 2446 | { |
d6e69534 | 2447 | bt_message *ret; |
f42867e2 PP |
2448 | |
2449 | if (!notit->stream) { | |
d6e69534 | 2450 | BT_LOGE("Cannot create stream for stream message: " |
f42867e2 PP |
2451 | "notit-addr=%p", notit); |
2452 | return; | |
2453 | } | |
2454 | ||
d6e69534 PP |
2455 | BT_ASSERT(notit->msg_iter); |
2456 | ret = bt_message_stream_end_create(notit->msg_iter, | |
f0010051 | 2457 | notit->stream); |
f42867e2 | 2458 | if (!ret) { |
fc917f65 | 2459 | BT_LOGE("Cannot create stream end message: " |
f42867e2 PP |
2460 | "notit-addr=%p, stream-addr=%p", |
2461 | notit, notit->stream); | |
2462 | return; | |
2463 | } | |
fc917f65 | 2464 | |
d6e69534 | 2465 | *message = ret; |
f42867e2 PP |
2466 | } |
2467 | ||
78586d8a | 2468 | static |
fc917f65 | 2469 | void create_msg_packet_beginning(struct bt_msg_iter *notit, |
d6e69534 | 2470 | bt_message **message) |
e98a2d6e | 2471 | { |
312c056a | 2472 | int ret; |
d6e69534 PP |
2473 | enum bt_msg_iter_status status; |
2474 | bt_message *msg = NULL; | |
b19ff26f | 2475 | const bt_stream_class *sc; |
e98a2d6e | 2476 | |
312c056a | 2477 | status = set_current_packet(notit); |
d6e69534 | 2478 | if (status != BT_MSG_ITER_STATUS_OK) { |
312c056a | 2479 | goto end; |
e98a2d6e PP |
2480 | } |
2481 | ||
312c056a | 2482 | BT_ASSERT(notit->packet); |
40f4ba76 | 2483 | sc = notit->meta.sc->ir_sc; |
44c440bc PP |
2484 | BT_ASSERT(sc); |
2485 | ||
312c056a | 2486 | if (notit->packet_context_field) { |
40f4ba76 | 2487 | ret = bt_packet_move_context_field( |
e5be10ef | 2488 | notit->packet, notit->packet_context_field); |
312c056a PP |
2489 | if (ret) { |
2490 | goto end; | |
2491 | } | |
2492 | ||
2493 | notit->packet_context_field = NULL; | |
2494 | ||
2495 | /* | |
83ebb7f1 PP |
2496 | * At this point notit->dscopes.stream_packet_context |
2497 | * has the same value as the packet context field within | |
312c056a PP |
2498 | * notit->packet. |
2499 | */ | |
40f4ba76 | 2500 | BT_ASSERT(bt_packet_borrow_context_field( |
e5be10ef | 2501 | notit->packet) == |
312c056a PP |
2502 | notit->dscopes.stream_packet_context); |
2503 | } | |
2504 | ||
d6e69534 | 2505 | BT_ASSERT(notit->msg_iter); |
a6d85d2f | 2506 | |
a33f7c34 PP |
2507 | if (bt_stream_class_borrow_default_clock_class(notit->meta.sc->ir_sc)) { |
2508 | uint64_t value = 0; | |
2509 | ||
2510 | if (notit->snapshots.beginning_clock == UINT64_C(-1)) { | |
2511 | if (notit->prev_packet_snapshots.end_clock != UINT64_C(-1)) { | |
2512 | value = notit->prev_packet_snapshots.end_clock; | |
2513 | } | |
2514 | } else { | |
2515 | value = notit->snapshots.beginning_clock; | |
2516 | } | |
2517 | ||
2518 | ||
2519 | msg = bt_message_packet_beginning_create_with_default_clock_snapshot( | |
2520 | notit->msg_iter, notit->packet, value); | |
2521 | } else { | |
a6d85d2f PP |
2522 | msg = bt_message_packet_beginning_create(notit->msg_iter, |
2523 | notit->packet); | |
a6d85d2f PP |
2524 | } |
2525 | ||
d6e69534 PP |
2526 | if (!msg) { |
2527 | BT_LOGE("Cannot create packet beginning message: " | |
fdf0e7a0 PP |
2528 | "notit-addr=%p, packet-addr=%p", |
2529 | notit, notit->packet); | |
e22b45d0 | 2530 | goto end; |
78586d8a | 2531 | } |
312c056a | 2532 | |
d6e69534 | 2533 | *message = msg; |
e22b45d0 PP |
2534 | |
2535 | end: | |
2536 | return; | |
e98a2d6e PP |
2537 | } |
2538 | ||
78586d8a | 2539 | static |
fc917f65 | 2540 | void create_msg_packet_end(struct bt_msg_iter *notit, bt_message **message) |
e98a2d6e | 2541 | { |
d6e69534 | 2542 | bt_message *msg; |
e98a2d6e | 2543 | |
e98a2d6e | 2544 | if (!notit->packet) { |
78586d8a | 2545 | return; |
e98a2d6e PP |
2546 | } |
2547 | ||
44c440bc PP |
2548 | /* Update default clock from packet's end time */ |
2549 | if (notit->snapshots.end_clock != UINT64_C(-1)) { | |
605e1019 | 2550 | notit->default_clock_snapshot = notit->snapshots.end_clock; |
44c440bc PP |
2551 | } |
2552 | ||
d6e69534 | 2553 | BT_ASSERT(notit->msg_iter); |
a6d85d2f | 2554 | |
a33f7c34 PP |
2555 | if (bt_stream_class_borrow_default_clock_class(notit->meta.sc->ir_sc)) { |
2556 | if (notit->snapshots.end_clock == UINT64_C(-1)) { | |
2557 | notit->snapshots.end_clock = | |
2558 | notit->default_clock_snapshot; | |
2559 | } | |
2560 | ||
2561 | BT_ASSERT(notit->snapshots.end_clock != UINT64_C(-1)); | |
a6d85d2f PP |
2562 | msg = bt_message_packet_end_create_with_default_clock_snapshot( |
2563 | notit->msg_iter, notit->packet, | |
2564 | notit->snapshots.end_clock); | |
a33f7c34 PP |
2565 | } else { |
2566 | msg = bt_message_packet_end_create(notit->msg_iter, | |
2567 | notit->packet); | |
a6d85d2f PP |
2568 | } |
2569 | ||
d6e69534 PP |
2570 | if (!msg) { |
2571 | BT_LOGE("Cannot create packet end message: " | |
fdf0e7a0 PP |
2572 | "notit-addr=%p, packet-addr=%p", |
2573 | notit, notit->packet); | |
78586d8a | 2574 | return; |
ccf82993 | 2575 | |
78586d8a | 2576 | } |
e98a2d6e | 2577 | |
c5b9b441 | 2578 | BT_PACKET_PUT_REF_AND_RESET(notit->packet); |
d6e69534 | 2579 | *message = msg; |
e98a2d6e PP |
2580 | } |
2581 | ||
495490c5 PP |
2582 | static |
2583 | void create_msg_discarded_events(struct bt_msg_iter *notit, | |
2584 | bt_message **message) | |
2585 | { | |
2586 | bt_message *msg; | |
2587 | uint64_t beginning_raw_value = UINT64_C(-1); | |
2588 | uint64_t end_raw_value = UINT64_C(-1); | |
2589 | uint64_t count = UINT64_C(-1); | |
2590 | ||
2591 | BT_ASSERT(notit->msg_iter); | |
2592 | BT_ASSERT(notit->stream); | |
2593 | ||
2594 | if (notit->prev_packet_snapshots.discarded_events == UINT64_C(-1)) { | |
2595 | /* | |
2596 | * We discarded events, but before (and possibly | |
2597 | * including) the current packet: use this packet's time | |
2598 | * range, and do not have a specific count. | |
2599 | */ | |
2600 | beginning_raw_value = notit->snapshots.beginning_clock; | |
2601 | end_raw_value = notit->snapshots.end_clock; | |
2602 | } else { | |
2603 | count = notit->snapshots.discarded_events - | |
2604 | notit->prev_packet_snapshots.discarded_events; | |
2605 | BT_ASSERT(count > 0); | |
2606 | beginning_raw_value = notit->prev_packet_snapshots.end_clock; | |
2607 | end_raw_value = notit->snapshots.end_clock; | |
2608 | } | |
2609 | ||
2610 | if (beginning_raw_value != UINT64_C(-1) && | |
2611 | end_raw_value != UINT64_C(-1)) { | |
2612 | msg = bt_message_discarded_events_create_with_default_clock_snapshots( | |
2613 | notit->msg_iter, notit->stream, beginning_raw_value, | |
2614 | end_raw_value); | |
2615 | } else { | |
2616 | msg = bt_message_discarded_events_create(notit->msg_iter, | |
2617 | notit->stream); | |
2618 | } | |
2619 | ||
2620 | if (!msg) { | |
2621 | BT_LOGE("Cannot create discarded events message: " | |
2622 | "notit-addr=%p, stream-addr=%p", | |
2623 | notit, notit->stream); | |
2624 | return; | |
2625 | } | |
2626 | ||
2627 | if (count != UINT64_C(-1)) { | |
2628 | bt_message_discarded_events_set_count(msg, count); | |
2629 | } | |
2630 | ||
2631 | *message = msg; | |
2632 | } | |
2633 | ||
2634 | static | |
2635 | void create_msg_discarded_packets(struct bt_msg_iter *notit, | |
2636 | bt_message **message) | |
2637 | { | |
2638 | bt_message *msg; | |
2639 | ||
2640 | BT_ASSERT(notit->msg_iter); | |
2641 | BT_ASSERT(notit->stream); | |
2642 | BT_ASSERT(notit->prev_packet_snapshots.packets != | |
2643 | UINT64_C(-1)); | |
2644 | ||
2645 | if (notit->prev_packet_snapshots.end_clock != UINT64_C(-1) && | |
2646 | notit->snapshots.beginning_clock != UINT64_C(-1)) { | |
2647 | msg = bt_message_discarded_packets_create_with_default_clock_snapshots( | |
2648 | notit->msg_iter, notit->stream, | |
2649 | notit->prev_packet_snapshots.end_clock, | |
2650 | notit->snapshots.beginning_clock); | |
2651 | } else { | |
2652 | msg = bt_message_discarded_packets_create(notit->msg_iter, | |
2653 | notit->stream); | |
2654 | } | |
2655 | ||
2656 | if (!msg) { | |
2657 | BT_LOGE("Cannot create discarded packets message: " | |
2658 | "notit-addr=%p, stream-addr=%p", | |
2659 | notit, notit->stream); | |
2660 | return; | |
2661 | } | |
2662 | ||
2663 | bt_message_discarded_packets_set_count(msg, | |
2664 | notit->snapshots.packets - | |
2665 | notit->prev_packet_snapshots.packets - 1); | |
2666 | *message = msg; | |
2667 | } | |
2668 | ||
c44c3e70 | 2669 | BT_HIDDEN |
d6e69534 | 2670 | struct bt_msg_iter *bt_msg_iter_create(struct ctf_trace_class *tc, |
e98a2d6e | 2671 | size_t max_request_sz, |
d6e69534 | 2672 | struct bt_msg_iter_medium_ops medops, void *data) |
e98a2d6e | 2673 | { |
d6e69534 | 2674 | struct bt_msg_iter *notit = NULL; |
5cd6d0e5 PP |
2675 | struct bt_bfcr_cbs cbs = { |
2676 | .classes = { | |
2677 | .signed_int = bfcr_signed_int_cb, | |
2678 | .unsigned_int = bfcr_unsigned_int_cb, | |
2679 | .floating_point = bfcr_floating_point_cb, | |
2680 | .string_begin = bfcr_string_begin_cb, | |
2681 | .string = bfcr_string_cb, | |
2682 | .string_end = bfcr_string_end_cb, | |
2683 | .compound_begin = bfcr_compound_begin_cb, | |
2684 | .compound_end = bfcr_compound_end_cb, | |
e98a2d6e PP |
2685 | }, |
2686 | .query = { | |
5cd6d0e5 PP |
2687 | .get_sequence_length = bfcr_get_sequence_length_cb, |
2688 | .borrow_variant_selected_field_class = bfcr_borrow_variant_selected_field_class_cb, | |
e98a2d6e PP |
2689 | }, |
2690 | }; | |
2691 | ||
44c440bc | 2692 | BT_ASSERT(tc); |
f6ccaed9 | 2693 | BT_ASSERT(medops.request_bytes); |
312c056a | 2694 | BT_ASSERT(medops.borrow_stream); |
d6e69534 | 2695 | BT_LOGD("Creating CTF plugin message iterator: " |
862ca4ed PP |
2696 | "trace-addr=%p, max-request-size=%zu, " |
2697 | "data=%p", tc, max_request_sz, data); | |
d6e69534 | 2698 | notit = g_new0(struct bt_msg_iter, 1); |
e98a2d6e | 2699 | if (!notit) { |
d6e69534 | 2700 | BT_LOGE_STR("Failed to allocate one CTF plugin message iterator."); |
e98a2d6e PP |
2701 | goto end; |
2702 | } | |
44c440bc | 2703 | notit->meta.tc = tc; |
e98a2d6e PP |
2704 | notit->medium.medops = medops; |
2705 | notit->medium.max_request_sz = max_request_sz; | |
2706 | notit->medium.data = data; | |
e98a2d6e | 2707 | notit->stack = stack_new(notit); |
44c440bc PP |
2708 | notit->stored_values = g_array_new(FALSE, TRUE, sizeof(uint64_t)); |
2709 | g_array_set_size(notit->stored_values, tc->stored_value_count); | |
2710 | ||
e98a2d6e | 2711 | if (!notit->stack) { |
fdf0e7a0 | 2712 | BT_LOGE_STR("Failed to create field stack."); |
c44c3e70 | 2713 | goto error; |
e98a2d6e PP |
2714 | } |
2715 | ||
5cd6d0e5 PP |
2716 | notit->bfcr = bt_bfcr_create(cbs, notit); |
2717 | if (!notit->bfcr) { | |
2718 | BT_LOGE_STR("Failed to create binary class reader (BFCR)."); | |
c44c3e70 | 2719 | goto error; |
e98a2d6e PP |
2720 | } |
2721 | ||
d6e69534 PP |
2722 | bt_msg_iter_reset(notit); |
2723 | BT_LOGD("Created CTF plugin message iterator: " | |
862ca4ed | 2724 | "trace-addr=%p, max-request-size=%zu, " |
fdf0e7a0 | 2725 | "data=%p, notit-addr=%p", |
862ca4ed | 2726 | tc, max_request_sz, data, notit); |
9e0c8dbb | 2727 | notit->cur_packet_offset = 0; |
fdf0e7a0 | 2728 | |
e98a2d6e PP |
2729 | end: |
2730 | return notit; | |
fdf0e7a0 | 2731 | |
c44c3e70 | 2732 | error: |
d6e69534 | 2733 | bt_msg_iter_destroy(notit); |
c44c3e70 JG |
2734 | notit = NULL; |
2735 | goto end; | |
e98a2d6e PP |
2736 | } |
2737 | ||
d6e69534 | 2738 | void bt_msg_iter_destroy(struct bt_msg_iter *notit) |
e98a2d6e | 2739 | { |
c5b9b441 PP |
2740 | BT_PACKET_PUT_REF_AND_RESET(notit->packet); |
2741 | BT_STREAM_PUT_REF_AND_RESET(notit->stream); | |
312c056a | 2742 | release_all_dscopes(notit); |
e98a2d6e | 2743 | |
d6e69534 | 2744 | BT_LOGD("Destroying CTF plugin message iterator: addr=%p", notit); |
fdf0e7a0 | 2745 | |
e98a2d6e | 2746 | if (notit->stack) { |
fdf0e7a0 | 2747 | BT_LOGD_STR("Destroying field stack."); |
e98a2d6e PP |
2748 | stack_destroy(notit->stack); |
2749 | } | |
2750 | ||
5cd6d0e5 PP |
2751 | if (notit->bfcr) { |
2752 | BT_LOGD("Destroying BFCR: bfcr-addr=%p", notit->bfcr); | |
2753 | bt_bfcr_destroy(notit->bfcr); | |
e98a2d6e PP |
2754 | } |
2755 | ||
44c440bc PP |
2756 | if (notit->stored_values) { |
2757 | g_array_free(notit->stored_values, TRUE); | |
5f870343 | 2758 | } |
fdf0e7a0 | 2759 | |
e98a2d6e PP |
2760 | g_free(notit); |
2761 | } | |
2762 | ||
d6e69534 PP |
2763 | enum bt_msg_iter_status bt_msg_iter_get_next_message( |
2764 | struct bt_msg_iter *notit, | |
fc917f65 | 2765 | bt_self_message_iterator *msg_iter, bt_message **message) |
e98a2d6e | 2766 | { |
d6e69534 | 2767 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
e98a2d6e | 2768 | |
f6ccaed9 | 2769 | BT_ASSERT(notit); |
d6e69534 | 2770 | BT_ASSERT(message); |
d6e69534 | 2771 | notit->msg_iter = msg_iter; |
495490c5 | 2772 | notit->set_stream = true; |
d6e69534 | 2773 | BT_LOGV("Getting next message: notit-addr=%p", notit); |
fdf0e7a0 | 2774 | |
e98a2d6e PP |
2775 | while (true) { |
2776 | status = handle_state(notit); | |
fc917f65 | 2777 | if (unlikely(status == BT_MSG_ITER_STATUS_AGAIN)) { |
d6e69534 | 2778 | BT_LOGV_STR("Medium returned BT_MSG_ITER_STATUS_AGAIN."); |
7cdc2bab | 2779 | goto end; |
fc917f65 PP |
2780 | } else if (unlikely(status != BT_MSG_ITER_STATUS_OK)) { |
2781 | BT_LOGW("Cannot handle state: notit-addr=%p, state=%s", | |
2782 | notit, state_string(notit->state)); | |
e98a2d6e PP |
2783 | goto end; |
2784 | } | |
2785 | ||
2786 | switch (notit->state) { | |
fc917f65 PP |
2787 | case STATE_EMIT_MSG_EVENT: |
2788 | BT_ASSERT(notit->event_msg); | |
fc917f65 PP |
2789 | *message = notit->event_msg; |
2790 | notit->event_msg = NULL; | |
495490c5 PP |
2791 | goto end; |
2792 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
2793 | /* create_msg_discared_events() logs errors */ | |
2794 | create_msg_discarded_events(notit, message); | |
2795 | ||
2796 | if (!*message) { | |
2797 | status = BT_MSG_ITER_STATUS_ERROR; | |
2798 | } | |
2799 | ||
2800 | goto end; | |
2801 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
2802 | /* create_msg_discared_packets() logs errors */ | |
2803 | create_msg_discarded_packets(notit, message); | |
2804 | ||
2805 | if (!*message) { | |
2806 | status = BT_MSG_ITER_STATUS_ERROR; | |
2807 | } | |
2808 | ||
fc917f65 PP |
2809 | goto end; |
2810 | case STATE_EMIT_MSG_PACKET_BEGINNING: | |
2811 | /* create_msg_packet_beginning() logs errors */ | |
2812 | create_msg_packet_beginning(notit, message); | |
44c440bc | 2813 | |
d6e69534 PP |
2814 | if (!*message) { |
2815 | status = BT_MSG_ITER_STATUS_ERROR; | |
f42867e2 | 2816 | } |
44c440bc | 2817 | |
f42867e2 | 2818 | goto end; |
fc917f65 PP |
2819 | case STATE_EMIT_MSG_PACKET_END_SINGLE: |
2820 | case STATE_EMIT_MSG_PACKET_END_MULTI: | |
2821 | /* create_msg_packet_end() logs errors */ | |
2822 | create_msg_packet_end(notit, message); | |
44c440bc | 2823 | |
d6e69534 PP |
2824 | if (!*message) { |
2825 | status = BT_MSG_ITER_STATUS_ERROR; | |
e98a2d6e | 2826 | } |
312c056a | 2827 | |
e98a2d6e | 2828 | goto end; |
fc917f65 | 2829 | case STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING: |
495490c5 PP |
2830 | /* create_msg_stream_activity_beginning() logs errors */ |
2831 | create_msg_stream_activity_beginning(notit, message); | |
fc917f65 | 2832 | |
495490c5 PP |
2833 | if (!*message) { |
2834 | status = BT_MSG_ITER_STATUS_ERROR; | |
e98a2d6e | 2835 | } |
312c056a | 2836 | |
495490c5 | 2837 | goto end; |
fc917f65 | 2838 | case STATE_EMIT_MSG_STREAM_ACTIVITY_END: |
495490c5 PP |
2839 | /* create_msg_stream_activity_end() logs errors */ |
2840 | create_msg_stream_activity_end(notit, message); | |
fc917f65 | 2841 | |
495490c5 PP |
2842 | if (!*message) { |
2843 | status = BT_MSG_ITER_STATUS_ERROR; | |
fc917f65 PP |
2844 | } |
2845 | ||
495490c5 | 2846 | goto end; |
fc917f65 | 2847 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
495490c5 PP |
2848 | /* create_msg_stream_beginning() logs errors */ |
2849 | create_msg_stream_beginning(notit, message); | |
fc917f65 | 2850 | |
495490c5 PP |
2851 | if (!*message) { |
2852 | status = BT_MSG_ITER_STATUS_ERROR; | |
fc917f65 PP |
2853 | } |
2854 | ||
495490c5 | 2855 | goto end; |
fc917f65 | 2856 | case STATE_EMIT_MSG_STREAM_END: |
495490c5 PP |
2857 | /* create_msg_stream_end() logs errors */ |
2858 | create_msg_stream_end(notit, message); | |
fc917f65 | 2859 | |
495490c5 PP |
2860 | if (!*message) { |
2861 | status = BT_MSG_ITER_STATUS_ERROR; | |
fc917f65 PP |
2862 | } |
2863 | ||
495490c5 | 2864 | goto end; |
fc917f65 PP |
2865 | case STATE_DONE: |
2866 | status = BT_MSG_ITER_STATUS_EOF; | |
e98a2d6e PP |
2867 | goto end; |
2868 | default: | |
2869 | /* Non-emitting state: continue */ | |
2870 | break; | |
2871 | } | |
2872 | } | |
2873 | ||
2874 | end: | |
2875 | return status; | |
2876 | } | |
87187cbf | 2877 | |
41693723 PP |
2878 | static |
2879 | enum bt_msg_iter_status read_packet_header_context_fields( | |
2880 | struct bt_msg_iter *notit) | |
87187cbf | 2881 | { |
9e0c8dbb | 2882 | int ret; |
d6e69534 | 2883 | enum bt_msg_iter_status status = BT_MSG_ITER_STATUS_OK; |
87187cbf | 2884 | |
f6ccaed9 | 2885 | BT_ASSERT(notit); |
495490c5 | 2886 | notit->set_stream = false; |
87187cbf | 2887 | |
fc917f65 | 2888 | if (notit->state == STATE_EMIT_MSG_PACKET_BEGINNING) { |
87187cbf | 2889 | /* We're already there */ |
41693723 | 2890 | goto end; |
87187cbf PP |
2891 | } |
2892 | ||
2893 | while (true) { | |
2894 | status = handle_state(notit); | |
fc917f65 | 2895 | if (unlikely(status == BT_MSG_ITER_STATUS_AGAIN)) { |
d6e69534 | 2896 | BT_LOGV_STR("Medium returned BT_MSG_ITER_STATUS_AGAIN."); |
87187cbf | 2897 | goto end; |
fc917f65 PP |
2898 | } else if (unlikely(status != BT_MSG_ITER_STATUS_OK)) { |
2899 | BT_LOGW("Cannot handle state: notit-addr=%p, state=%s", | |
2900 | notit, state_string(notit->state)); | |
87187cbf PP |
2901 | goto end; |
2902 | } | |
2903 | ||
2904 | switch (notit->state) { | |
fc917f65 | 2905 | case STATE_EMIT_MSG_PACKET_BEGINNING: |
87187cbf PP |
2906 | /* |
2907 | * Packet header and context fields are | |
2908 | * potentially decoded (or they don't exist). | |
2909 | */ | |
41693723 | 2910 | goto end; |
87187cbf PP |
2911 | case STATE_INIT: |
2912 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
2913 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
2914 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
2915 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
2916 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
2917 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
495490c5 | 2918 | case STATE_CHECK_EMIT_MSG_STREAM_BEGINNING: |
fc917f65 PP |
2919 | case STATE_EMIT_MSG_STREAM_BEGINNING: |
2920 | case STATE_EMIT_MSG_STREAM_ACTIVITY_BEGINNING: | |
495490c5 PP |
2921 | case STATE_CHECK_EMIT_MSG_DISCARDED_EVENTS: |
2922 | case STATE_EMIT_MSG_DISCARDED_EVENTS: | |
2923 | case STATE_CHECK_EMIT_MSG_DISCARDED_PACKETS: | |
2924 | case STATE_EMIT_MSG_DISCARDED_PACKETS: | |
87187cbf PP |
2925 | /* Non-emitting state: continue */ |
2926 | break; | |
2927 | default: | |
2928 | /* | |
2929 | * We should never get past the | |
fc917f65 | 2930 | * STATE_EMIT_MSG_PACKET_BEGINNING state. |
87187cbf | 2931 | */ |
fdf0e7a0 PP |
2932 | BT_LOGF("Unexpected state: notit-addr=%p, state=%s", |
2933 | notit, state_string(notit->state)); | |
0fbb9a9f | 2934 | abort(); |
87187cbf PP |
2935 | } |
2936 | } | |
2937 | ||
41693723 | 2938 | end: |
312c056a PP |
2939 | ret = set_current_packet_content_sizes(notit); |
2940 | if (ret) { | |
d6e69534 | 2941 | status = BT_MSG_ITER_STATUS_ERROR; |
312c056a PP |
2942 | } |
2943 | ||
87187cbf PP |
2944 | return status; |
2945 | } | |
6de92955 PP |
2946 | |
2947 | BT_HIDDEN | |
d6e69534 | 2948 | void bt_msg_iter_set_medops_data(struct bt_msg_iter *notit, |
6de92955 PP |
2949 | void *medops_data) |
2950 | { | |
f6ccaed9 | 2951 | BT_ASSERT(notit); |
6de92955 PP |
2952 | notit->medium.data = medops_data; |
2953 | } | |
9e0c8dbb JG |
2954 | |
2955 | BT_HIDDEN | |
fc917f65 PP |
2956 | enum bt_msg_iter_status bt_msg_iter_seek(struct bt_msg_iter *notit, |
2957 | off_t offset) | |
9e0c8dbb | 2958 | { |
d6e69534 PP |
2959 | enum bt_msg_iter_status ret = BT_MSG_ITER_STATUS_OK; |
2960 | enum bt_msg_iter_medium_status medium_status; | |
9e0c8dbb | 2961 | |
f6ccaed9 | 2962 | BT_ASSERT(notit); |
9e0c8dbb JG |
2963 | if (offset < 0) { |
2964 | BT_LOGE("Cannot seek to negative offset: offset=%jd", offset); | |
d6e69534 | 2965 | ret = BT_MSG_ITER_STATUS_INVAL; |
9e0c8dbb JG |
2966 | goto end; |
2967 | } | |
2968 | ||
2969 | if (!notit->medium.medops.seek) { | |
d6e69534 | 2970 | ret = BT_MSG_ITER_STATUS_UNSUPPORTED; |
9e0c8dbb JG |
2971 | BT_LOGD("Aborting seek as the iterator's underlying media does not implement seek support."); |
2972 | goto end; | |
2973 | } | |
2974 | ||
2975 | medium_status = notit->medium.medops.seek( | |
d6e69534 PP |
2976 | BT_MSG_ITER_SEEK_WHENCE_SET, offset, notit->medium.data); |
2977 | if (medium_status != BT_MSG_ITER_MEDIUM_STATUS_OK) { | |
2978 | if (medium_status == BT_MSG_ITER_MEDIUM_STATUS_EOF) { | |
2979 | ret = BT_MSG_ITER_STATUS_EOF; | |
9e0c8dbb | 2980 | } else { |
d6e69534 | 2981 | ret = BT_MSG_ITER_STATUS_ERROR; |
9e0c8dbb JG |
2982 | goto end; |
2983 | } | |
2984 | } | |
2985 | ||
d6e69534 | 2986 | bt_msg_iter_reset(notit); |
9e0c8dbb | 2987 | notit->cur_packet_offset = offset; |
44c440bc | 2988 | |
9e0c8dbb JG |
2989 | end: |
2990 | return ret; | |
2991 | } | |
2992 | ||
44c440bc | 2993 | BT_HIDDEN |
d6e69534 PP |
2994 | enum bt_msg_iter_status bt_msg_iter_get_packet_properties( |
2995 | struct bt_msg_iter *notit, | |
2996 | struct bt_msg_iter_packet_properties *props) | |
44c440bc | 2997 | { |
41693723 PP |
2998 | enum bt_msg_iter_status status; |
2999 | ||
44c440bc PP |
3000 | BT_ASSERT(notit); |
3001 | BT_ASSERT(props); | |
41693723 PP |
3002 | status = read_packet_header_context_fields(notit); |
3003 | if (status != BT_MSG_ITER_STATUS_OK) { | |
3004 | goto end; | |
3005 | } | |
44c440bc | 3006 | |
fc917f65 PP |
3007 | props->exp_packet_total_size = notit->cur_exp_packet_total_size; |
3008 | props->exp_packet_content_size = notit->cur_exp_packet_content_size; | |
44c440bc | 3009 | props->stream_class_id = (uint64_t) notit->cur_stream_class_id; |
690a3482 | 3010 | BT_ASSERT(props->stream_class_id >= 0); |
44c440bc PP |
3011 | props->data_stream_id = notit->cur_data_stream_id; |
3012 | props->snapshots.discarded_events = notit->snapshots.discarded_events; | |
3013 | props->snapshots.packets = notit->snapshots.packets; | |
3014 | props->snapshots.beginning_clock = notit->snapshots.beginning_clock; | |
3015 | props->snapshots.end_clock = notit->snapshots.end_clock; | |
41693723 PP |
3016 | |
3017 | end: | |
3018 | return status; | |
9e0c8dbb | 3019 | } |
fc917f65 PP |
3020 | |
3021 | BT_HIDDEN | |
3022 | void bt_msg_iter_set_emit_stream_beginning_message(struct bt_msg_iter *notit, | |
3023 | bool val) | |
3024 | { | |
3025 | notit->emit_stream_begin_msg = val; | |
3026 | } | |
3027 | ||
3028 | BT_HIDDEN | |
3029 | void bt_msg_iter_set_emit_stream_end_message(struct bt_msg_iter *notit, | |
3030 | bool val) | |
3031 | { | |
3032 | notit->emit_stream_end_msg = val; | |
3033 | } |