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e98a2d6e PP |
1 | /* |
2 | * Babeltrace - CTF notification 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 | ||
fdf0e7a0 PP |
26 | #define BT_LOG_TAG "PLUGIN-CTF-NOTIF-ITER" |
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 | |
06a626b8 | 41 | #include "notif-iter.h" |
5cd6d0e5 | 42 | #include "../bfcr/bfcr.h" |
e98a2d6e | 43 | |
50842bdc | 44 | struct bt_notif_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 | */ |
50842bdc | 59 | struct 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, | |
f42867e2 | 83 | STATE_EMIT_NOTIF_NEW_STREAM, |
e98a2d6e | 84 | STATE_EMIT_NOTIF_NEW_PACKET, |
44c440bc PP |
85 | STATE_DSCOPE_EVENT_HEADER_BEGIN, |
86 | STATE_DSCOPE_EVENT_HEADER_CONTINUE, | |
87 | STATE_AFTER_EVENT_HEADER, | |
88 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN, | |
89 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE, | |
90 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN, | |
91 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE, | |
e98a2d6e PP |
92 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, |
93 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
94 | STATE_EMIT_NOTIF_EVENT, | |
95 | STATE_EMIT_NOTIF_END_OF_PACKET, | |
f42867e2 | 96 | STATE_DONE, |
e98a2d6e PP |
97 | STATE_SKIP_PACKET_PADDING, |
98 | }; | |
99 | ||
100 | /* CTF notification iterator */ | |
50842bdc | 101 | struct bt_notif_iter { |
e98a2d6e PP |
102 | /* Visit stack */ |
103 | struct stack *stack; | |
104 | ||
f0010051 PP |
105 | /* Current notification iterator to create notifications (weak) */ |
106 | struct bt_private_connection_private_notification_iterator *notif_iter; | |
5c563278 | 107 | |
e98a2d6e PP |
108 | /* |
109 | * Current dynamic scope field pointer. | |
110 | * | |
312c056a PP |
111 | * This is set by read_dscope_begin_state() and contains the |
112 | * value of one of the pointers in `dscopes` below. | |
e98a2d6e | 113 | */ |
312c056a | 114 | struct bt_field *cur_dscope_field; |
e98a2d6e | 115 | |
44c440bc PP |
116 | /* |
117 | * True if we're done filling a string field from a text | |
118 | * array/sequence payload. | |
119 | */ | |
120 | bool done_filling_string; | |
121 | ||
122 | /* Trace and classes */ | |
e98a2d6e | 123 | struct { |
44c440bc PP |
124 | struct ctf_trace_class *tc; |
125 | struct ctf_stream_class *sc; | |
126 | struct ctf_event_class *ec; | |
e98a2d6e PP |
127 | } meta; |
128 | ||
312c056a PP |
129 | /* Current packet header field wrapper (NULL if not created yet) */ |
130 | struct bt_packet_header_field *packet_header_field; | |
131 | ||
132 | /* Current packet header field wrapper (NULL if not created yet) */ | |
133 | struct bt_packet_context_field *packet_context_field; | |
134 | ||
135 | /* Current event header field (NULL if not created yet) */ | |
136 | struct bt_event_header_field *event_header_field; | |
137 | ||
e98a2d6e | 138 | /* Current packet (NULL if not created yet) */ |
50842bdc | 139 | struct bt_packet *packet; |
e98a2d6e | 140 | |
af87daef | 141 | /* Current stream (NULL if not set yet) */ |
50842bdc | 142 | struct bt_stream *stream; |
af87daef | 143 | |
312c056a PP |
144 | /* Current event (NULL if not created yet) */ |
145 | struct bt_event *event; | |
146 | ||
147 | /* Current event notification (NULL if not created yet) */ | |
148 | struct bt_notification *event_notif; | |
149 | ||
44c440bc | 150 | /* Database of current dynamic scopes */ |
e98a2d6e | 151 | struct { |
50842bdc PP |
152 | struct bt_field *trace_packet_header; |
153 | struct bt_field *stream_packet_context; | |
44c440bc PP |
154 | struct bt_field *event_header; |
155 | struct bt_field *event_common_context; | |
156 | struct bt_field *event_spec_context; | |
50842bdc | 157 | struct bt_field *event_payload; |
e98a2d6e PP |
158 | } dscopes; |
159 | ||
160 | /* Current state */ | |
161 | enum state state; | |
162 | ||
2cf1d51e | 163 | /* Current medium buffer data */ |
e98a2d6e PP |
164 | struct { |
165 | /* Last address provided by medium */ | |
166 | const uint8_t *addr; | |
167 | ||
168 | /* Buffer size provided by medium (bytes) */ | |
169 | size_t sz; | |
170 | ||
171 | /* Offset within whole packet of addr (bits) */ | |
172 | size_t packet_offset; | |
173 | ||
174 | /* Current position from addr (bits) */ | |
175 | size_t at; | |
174e773b PP |
176 | |
177 | /* Position of the last event header from addr (bits) */ | |
178 | size_t last_eh_at; | |
e98a2d6e PP |
179 | } buf; |
180 | ||
181 | /* Binary type reader */ | |
5cd6d0e5 | 182 | struct bt_bfcr *bfcr; |
e98a2d6e | 183 | |
2cf1d51e | 184 | /* Current medium data */ |
e98a2d6e | 185 | struct { |
50842bdc | 186 | struct bt_notif_iter_medium_ops medops; |
e98a2d6e PP |
187 | size_t max_request_sz; |
188 | void *data; | |
189 | } medium; | |
190 | ||
f42867e2 PP |
191 | /* Stream beginning was emitted */ |
192 | bool stream_begin_emitted; | |
193 | ||
e98a2d6e | 194 | /* Current packet size (bits) (-1 if unknown) */ |
44c440bc | 195 | int64_t cur_exp_packet_total_size; |
e98a2d6e PP |
196 | |
197 | /* Current content size (bits) (-1 if unknown) */ | |
44c440bc | 198 | int64_t cur_exp_packet_content_size; |
c44c3e70 | 199 | |
44c440bc PP |
200 | /* Current stream class ID */ |
201 | int64_t cur_stream_class_id; | |
9e0c8dbb | 202 | |
44c440bc PP |
203 | /* Current event class ID */ |
204 | int64_t cur_event_class_id; | |
5f870343 | 205 | |
44c440bc PP |
206 | /* Current data stream ID */ |
207 | int64_t cur_data_stream_id; | |
5f870343 JG |
208 | |
209 | /* | |
44c440bc PP |
210 | * Offset, in the underlying media, of the current packet's |
211 | * start (-1 if unknown). | |
5f870343 | 212 | */ |
44c440bc PP |
213 | off_t cur_packet_offset; |
214 | ||
215 | /* Default clock's current value */ | |
216 | uint64_t default_clock_val; | |
5f870343 | 217 | |
44c440bc PP |
218 | /* End of packet snapshots */ |
219 | struct { | |
220 | uint64_t discarded_events; | |
221 | uint64_t packets; | |
222 | uint64_t beginning_clock; | |
223 | uint64_t end_clock; | |
224 | } snapshots; | |
225 | ||
226 | /* Stored values (for sequence lengths, variant tags) */ | |
227 | GArray *stored_values; | |
e98a2d6e PP |
228 | }; |
229 | ||
fdf0e7a0 PP |
230 | static inline |
231 | const char *state_string(enum state state) | |
232 | { | |
233 | switch (state) { | |
234 | case STATE_INIT: | |
235 | return "STATE_INIT"; | |
236 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
237 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN"; | |
238 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
239 | return "STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE"; | |
240 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
241 | return "STATE_AFTER_TRACE_PACKET_HEADER"; | |
242 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
243 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN"; | |
244 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
245 | return "STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE"; | |
246 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
247 | return "STATE_AFTER_STREAM_PACKET_CONTEXT"; | |
248 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
249 | return "STATE_EMIT_NOTIF_NEW_PACKET"; | |
f42867e2 PP |
250 | case STATE_EMIT_NOTIF_NEW_STREAM: |
251 | return "STATE_EMIT_NOTIF_NEW_STREAM"; | |
44c440bc PP |
252 | case STATE_DSCOPE_EVENT_HEADER_BEGIN: |
253 | return "STATE_DSCOPE_EVENT_HEADER_BEGIN"; | |
254 | case STATE_DSCOPE_EVENT_HEADER_CONTINUE: | |
255 | return "STATE_DSCOPE_EVENT_HEADER_CONTINUE"; | |
256 | case STATE_AFTER_EVENT_HEADER: | |
257 | return "STATE_AFTER_EVENT_HEADER"; | |
258 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN: | |
259 | return "STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN"; | |
260 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE: | |
261 | return "STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE"; | |
262 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN: | |
263 | return "STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN"; | |
264 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE: | |
265 | return "STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE"; | |
fdf0e7a0 PP |
266 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: |
267 | return "STATE_DSCOPE_EVENT_PAYLOAD_BEGIN"; | |
268 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
269 | return "STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE"; | |
270 | case STATE_EMIT_NOTIF_EVENT: | |
271 | return "STATE_EMIT_NOTIF_EVENT"; | |
272 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
273 | return "STATE_EMIT_NOTIF_END_OF_PACKET"; | |
f42867e2 PP |
274 | case STATE_DONE: |
275 | return "STATE_DONE"; | |
fdf0e7a0 PP |
276 | case STATE_SKIP_PACKET_PADDING: |
277 | return "STATE_SKIP_PACKET_PADDING"; | |
278 | default: | |
279 | return "(unknown)"; | |
280 | } | |
281 | } | |
282 | ||
2cf1d51e | 283 | static |
50842bdc | 284 | int bt_notif_iter_switch_packet(struct bt_notif_iter *notit); |
2cf1d51e | 285 | |
e98a2d6e | 286 | static |
50842bdc | 287 | struct stack *stack_new(struct bt_notif_iter *notit) |
e98a2d6e PP |
288 | { |
289 | struct stack *stack = NULL; | |
290 | ||
291 | stack = g_new0(struct stack, 1); | |
292 | if (!stack) { | |
fdf0e7a0 | 293 | BT_LOGE_STR("Failed to allocate one stack."); |
e98a2d6e PP |
294 | goto error; |
295 | } | |
296 | ||
afe86a06 | 297 | stack->entries = g_array_new(FALSE, TRUE, sizeof(struct stack_entry)); |
e98a2d6e | 298 | if (!stack->entries) { |
afe86a06 | 299 | BT_LOGE_STR("Failed to allocate a GArray."); |
e98a2d6e PP |
300 | goto error; |
301 | } | |
302 | ||
fdf0e7a0 | 303 | BT_LOGD("Created stack: notit-addr=%p, stack-addr=%p", notit, stack); |
44c440bc | 304 | goto end; |
fdf0e7a0 | 305 | |
e98a2d6e PP |
306 | error: |
307 | g_free(stack); | |
44c440bc PP |
308 | stack = NULL; |
309 | ||
310 | end: | |
311 | return stack; | |
e98a2d6e PP |
312 | } |
313 | ||
314 | static | |
315 | void stack_destroy(struct stack *stack) | |
316 | { | |
f6ccaed9 | 317 | BT_ASSERT(stack); |
fdf0e7a0 | 318 | BT_LOGD("Destroying stack: addr=%p", stack); |
afe86a06 PP |
319 | |
320 | if (stack->entries) { | |
321 | g_array_free(stack->entries, TRUE); | |
322 | } | |
323 | ||
e98a2d6e PP |
324 | g_free(stack); |
325 | } | |
326 | ||
327 | static | |
44c440bc | 328 | void stack_push(struct stack *stack, struct bt_field *base) |
e98a2d6e | 329 | { |
e98a2d6e | 330 | struct stack_entry *entry; |
e98a2d6e | 331 | |
f6ccaed9 PP |
332 | BT_ASSERT(stack); |
333 | BT_ASSERT(base); | |
fdf0e7a0 | 334 | BT_LOGV("Pushing base field on stack: stack-addr=%p, " |
afe86a06 PP |
335 | "stack-size-before=%zu, stack-size-after=%zu", |
336 | stack, stack->size, stack->size + 1); | |
337 | ||
338 | if (stack->entries->len == stack->size) { | |
339 | g_array_set_size(stack->entries, stack->size + 1); | |
e98a2d6e PP |
340 | } |
341 | ||
afe86a06 | 342 | entry = &g_array_index(stack->entries, struct stack_entry, stack->size); |
312c056a | 343 | entry->base = base; |
afe86a06 PP |
344 | entry->index = 0; |
345 | stack->size++; | |
e98a2d6e PP |
346 | } |
347 | ||
348 | static inline | |
349 | unsigned int stack_size(struct stack *stack) | |
350 | { | |
f6ccaed9 | 351 | BT_ASSERT(stack); |
afe86a06 | 352 | return stack->size; |
e98a2d6e PP |
353 | } |
354 | ||
355 | static | |
356 | void stack_pop(struct stack *stack) | |
357 | { | |
f6ccaed9 PP |
358 | BT_ASSERT(stack); |
359 | BT_ASSERT(stack_size(stack)); | |
fdf0e7a0 | 360 | BT_LOGV("Popping from stack: " |
afe86a06 PP |
361 | "stack-addr=%p, stack-size-before=%zu, stack-size-after=%zu", |
362 | stack, stack->size, stack->size - 1); | |
363 | stack->size--; | |
e98a2d6e PP |
364 | } |
365 | ||
366 | static inline | |
367 | struct stack_entry *stack_top(struct stack *stack) | |
368 | { | |
f6ccaed9 PP |
369 | BT_ASSERT(stack); |
370 | BT_ASSERT(stack_size(stack)); | |
afe86a06 PP |
371 | return &g_array_index(stack->entries, struct stack_entry, |
372 | stack->size - 1); | |
e98a2d6e PP |
373 | } |
374 | ||
375 | static inline | |
376 | bool stack_empty(struct stack *stack) | |
377 | { | |
378 | return stack_size(stack) == 0; | |
379 | } | |
380 | ||
381 | static | |
382 | void stack_clear(struct stack *stack) | |
383 | { | |
f6ccaed9 | 384 | BT_ASSERT(stack); |
afe86a06 | 385 | stack->size = 0; |
e98a2d6e PP |
386 | } |
387 | ||
388 | static inline | |
50842bdc PP |
389 | enum bt_notif_iter_status notif_iter_status_from_m_status( |
390 | enum bt_notif_iter_medium_status m_status) | |
e98a2d6e | 391 | { |
44c440bc | 392 | /* They are the same */ |
dc77b521 | 393 | return (int) m_status; |
e98a2d6e PP |
394 | } |
395 | ||
396 | static inline | |
50842bdc | 397 | size_t buf_size_bits(struct bt_notif_iter *notit) |
e98a2d6e | 398 | { |
fdf0e7a0 | 399 | return notit->buf.sz * 8; |
e98a2d6e PP |
400 | } |
401 | ||
402 | static inline | |
50842bdc | 403 | size_t buf_available_bits(struct bt_notif_iter *notit) |
e98a2d6e PP |
404 | { |
405 | return buf_size_bits(notit) - notit->buf.at; | |
406 | } | |
407 | ||
408 | static inline | |
50842bdc | 409 | size_t packet_at(struct bt_notif_iter *notit) |
e98a2d6e PP |
410 | { |
411 | return notit->buf.packet_offset + notit->buf.at; | |
412 | } | |
413 | ||
e98a2d6e | 414 | static inline |
50842bdc | 415 | void buf_consume_bits(struct bt_notif_iter *notit, size_t incr) |
e98a2d6e | 416 | { |
fdf0e7a0 PP |
417 | BT_LOGV("Advancing cursor: notit-addr=%p, cur-before=%zu, cur-after=%zu", |
418 | notit, notit->buf.at, notit->buf.at + incr); | |
e98a2d6e PP |
419 | notit->buf.at += incr; |
420 | } | |
421 | ||
e98a2d6e | 422 | static |
50842bdc PP |
423 | enum bt_notif_iter_status request_medium_bytes( |
424 | struct bt_notif_iter *notit) | |
e98a2d6e | 425 | { |
fdf0e7a0 PP |
426 | uint8_t *buffer_addr = NULL; |
427 | size_t buffer_sz = 0; | |
50842bdc | 428 | enum bt_notif_iter_medium_status m_status; |
e98a2d6e | 429 | |
fdf0e7a0 PP |
430 | BT_LOGV("Calling user function (request bytes): notit-addr=%p, " |
431 | "request-size=%zu", notit, notit->medium.max_request_sz); | |
e98a2d6e PP |
432 | m_status = notit->medium.medops.request_bytes( |
433 | notit->medium.max_request_sz, &buffer_addr, | |
434 | &buffer_sz, notit->medium.data); | |
fdf0e7a0 | 435 | BT_LOGV("User function returned: status=%s, buf-addr=%p, buf-size=%zu", |
50842bdc | 436 | bt_notif_iter_medium_status_string(m_status), |
fdf0e7a0 | 437 | buffer_addr, buffer_sz); |
50842bdc | 438 | if (m_status == BT_NOTIF_ITER_MEDIUM_STATUS_OK) { |
f6ccaed9 | 439 | BT_ASSERT(buffer_sz != 0); |
e98a2d6e PP |
440 | |
441 | /* New packet offset is old one + old size (in bits) */ | |
442 | notit->buf.packet_offset += buf_size_bits(notit); | |
443 | ||
444 | /* Restart at the beginning of the new medium buffer */ | |
445 | notit->buf.at = 0; | |
2b186c3e | 446 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
447 | |
448 | /* New medium buffer size */ | |
449 | notit->buf.sz = buffer_sz; | |
450 | ||
451 | /* New medium buffer address */ | |
452 | notit->buf.addr = buffer_addr; | |
fdf0e7a0 PP |
453 | |
454 | BT_LOGV("User function returned new bytes: " | |
455 | "packet-offset=%zu, cur=%zu, size=%zu, addr=%p", | |
456 | notit->buf.packet_offset, notit->buf.at, | |
457 | notit->buf.sz, notit->buf.addr); | |
458 | BT_LOGV_MEM(buffer_addr, buffer_sz, "Returned bytes at %p:", | |
459 | buffer_addr); | |
50842bdc | 460 | } else if (m_status == BT_NOTIF_ITER_MEDIUM_STATUS_EOF) { |
0684124b PP |
461 | /* |
462 | * User returned end of stream: validate that we're not | |
463 | * in the middle of a packet header, packet context, or | |
464 | * event. | |
465 | */ | |
44c440bc PP |
466 | if (notit->cur_exp_packet_total_size >= 0) { |
467 | if (packet_at(notit) == | |
468 | notit->cur_exp_packet_total_size) { | |
df0139b8 | 469 | goto end; |
0684124b | 470 | } |
df0139b8 PP |
471 | } else { |
472 | if (packet_at(notit) == 0) { | |
473 | goto end; | |
0684124b | 474 | } |
0684124b | 475 | |
df0139b8 PP |
476 | if (notit->buf.last_eh_at != SIZE_MAX && |
477 | notit->buf.at == notit->buf.last_eh_at) { | |
478 | goto end; | |
0684124b PP |
479 | } |
480 | } | |
481 | ||
0684124b PP |
482 | /* All other states are invalid */ |
483 | BT_LOGW("User function returned %s, but notification iterator is in an unexpected state: " | |
df0139b8 PP |
484 | "state=%s, cur-packet-size=%" PRId64 ", cur=%zu, " |
485 | "packet-cur=%zu, last-eh-at=%zu", | |
50842bdc | 486 | bt_notif_iter_medium_status_string(m_status), |
df0139b8 | 487 | state_string(notit->state), |
44c440bc | 488 | notit->cur_exp_packet_total_size, |
df0139b8 PP |
489 | notit->buf.at, packet_at(notit), |
490 | notit->buf.last_eh_at); | |
50842bdc | 491 | m_status = BT_NOTIF_ITER_MEDIUM_STATUS_ERROR; |
fdf0e7a0 PP |
492 | } else if (m_status < 0) { |
493 | BT_LOGW("User function failed: status=%s", | |
50842bdc | 494 | bt_notif_iter_medium_status_string(m_status)); |
e98a2d6e PP |
495 | } |
496 | ||
df0139b8 | 497 | end: |
e98a2d6e PP |
498 | return notif_iter_status_from_m_status(m_status); |
499 | } | |
500 | ||
501 | static inline | |
50842bdc PP |
502 | enum bt_notif_iter_status buf_ensure_available_bits( |
503 | struct bt_notif_iter *notit) | |
e98a2d6e | 504 | { |
50842bdc | 505 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e | 506 | |
44c440bc | 507 | if (unlikely(buf_available_bits(notit) == 0)) { |
e98a2d6e | 508 | /* |
50842bdc | 509 | * This _cannot_ return BT_NOTIF_ITER_STATUS_OK |
e98a2d6e PP |
510 | * _and_ no bits. |
511 | */ | |
512 | status = request_medium_bytes(notit); | |
513 | } | |
514 | ||
515 | return status; | |
516 | } | |
517 | ||
518 | static | |
50842bdc PP |
519 | enum bt_notif_iter_status read_dscope_begin_state( |
520 | struct bt_notif_iter *notit, | |
5cd6d0e5 | 521 | struct ctf_field_class *dscope_fc, |
e98a2d6e | 522 | enum state done_state, enum state continue_state, |
312c056a | 523 | struct bt_field *dscope_field) |
e98a2d6e | 524 | { |
50842bdc | 525 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
5cd6d0e5 | 526 | enum bt_bfcr_status bfcr_status; |
e98a2d6e PP |
527 | size_t consumed_bits; |
528 | ||
e98a2d6e | 529 | notit->cur_dscope_field = dscope_field; |
5cd6d0e5 PP |
530 | BT_LOGV("Starting BFCR: notit-addr=%p, bfcr-addr=%p, fc-addr=%p", |
531 | notit, notit->bfcr, dscope_fc); | |
532 | consumed_bits = bt_bfcr_start(notit->bfcr, dscope_fc, | |
e98a2d6e | 533 | notit->buf.addr, notit->buf.at, packet_at(notit), |
5cd6d0e5 PP |
534 | notit->buf.sz, &bfcr_status); |
535 | BT_LOGV("BFCR consumed bits: size=%zu", consumed_bits); | |
e98a2d6e | 536 | |
5cd6d0e5 PP |
537 | switch (bfcr_status) { |
538 | case BT_BFCR_STATUS_OK: | |
539 | /* Field class was read completely */ | |
fdf0e7a0 | 540 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
541 | notit->state = done_state; |
542 | break; | |
5cd6d0e5 PP |
543 | case BT_BFCR_STATUS_EOF: |
544 | BT_LOGV_STR("BFCR needs more data to decode field completely."); | |
e98a2d6e PP |
545 | notit->state = continue_state; |
546 | break; | |
547 | default: | |
5cd6d0e5 PP |
548 | BT_LOGW("BFCR failed to start: notit-addr=%p, bfcr-addr=%p, " |
549 | "status=%s", notit, notit->bfcr, | |
550 | bt_bfcr_status_string(bfcr_status)); | |
50842bdc | 551 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
552 | goto end; |
553 | } | |
554 | ||
555 | /* Consume bits now since we know we're not in an error state */ | |
556 | buf_consume_bits(notit, consumed_bits); | |
557 | ||
558 | end: | |
559 | return status; | |
560 | } | |
561 | ||
562 | static | |
50842bdc PP |
563 | enum bt_notif_iter_status read_dscope_continue_state( |
564 | struct bt_notif_iter *notit, enum state done_state) | |
e98a2d6e | 565 | { |
50842bdc | 566 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
5cd6d0e5 | 567 | enum bt_bfcr_status bfcr_status; |
e98a2d6e PP |
568 | size_t consumed_bits; |
569 | ||
5cd6d0e5 PP |
570 | BT_LOGV("Continuing BFCR: notit-addr=%p, bfcr-addr=%p", |
571 | notit, notit->bfcr); | |
df0139b8 | 572 | |
e98a2d6e | 573 | status = buf_ensure_available_bits(notit); |
50842bdc | 574 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
fdf0e7a0 PP |
575 | if (status < 0) { |
576 | BT_LOGW("Cannot ensure that buffer has at least one byte: " | |
577 | "notif-addr=%p, status=%s", | |
50842bdc | 578 | notit, bt_notif_iter_status_string(status)); |
fdf0e7a0 PP |
579 | } else { |
580 | BT_LOGV("Cannot ensure that buffer has at least one byte: " | |
581 | "notif-addr=%p, status=%s", | |
50842bdc | 582 | notit, bt_notif_iter_status_string(status)); |
fdf0e7a0 PP |
583 | } |
584 | ||
e98a2d6e PP |
585 | goto end; |
586 | } | |
587 | ||
5cd6d0e5 PP |
588 | consumed_bits = bt_bfcr_continue(notit->bfcr, notit->buf.addr, |
589 | notit->buf.sz, &bfcr_status); | |
590 | BT_LOGV("BFCR consumed bits: size=%zu", consumed_bits); | |
e98a2d6e | 591 | |
5cd6d0e5 PP |
592 | switch (bfcr_status) { |
593 | case BT_BFCR_STATUS_OK: | |
78586d8a | 594 | /* Type was read completely. */ |
fdf0e7a0 | 595 | BT_LOGV_STR("Field was completely decoded."); |
e98a2d6e PP |
596 | notit->state = done_state; |
597 | break; | |
5cd6d0e5 | 598 | case BT_BFCR_STATUS_EOF: |
78586d8a | 599 | /* Stay in this continue state. */ |
5cd6d0e5 | 600 | BT_LOGV_STR("BFCR needs more data to decode field completely."); |
e98a2d6e PP |
601 | break; |
602 | default: | |
5cd6d0e5 PP |
603 | BT_LOGW("BFCR failed to continue: notit-addr=%p, bfcr-addr=%p, " |
604 | "status=%s", notit, notit->bfcr, | |
605 | bt_bfcr_status_string(bfcr_status)); | |
50842bdc | 606 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
607 | goto end; |
608 | } | |
609 | ||
78586d8a | 610 | /* Consume bits now since we know we're not in an error state. */ |
e98a2d6e | 611 | buf_consume_bits(notit, consumed_bits); |
e98a2d6e PP |
612 | end: |
613 | return status; | |
614 | } | |
615 | ||
616 | static | |
312c056a | 617 | void release_event_dscopes(struct bt_notif_iter *notit) |
e98a2d6e | 618 | { |
44c440bc | 619 | notit->dscopes.event_header = NULL; |
312c056a PP |
620 | |
621 | if (notit->event_header_field) { | |
622 | bt_event_header_field_release(notit->event_header_field); | |
623 | notit->event_header_field = NULL; | |
624 | } | |
625 | ||
44c440bc PP |
626 | notit->dscopes.event_common_context = NULL; |
627 | notit->dscopes.event_spec_context = NULL; | |
312c056a | 628 | notit->dscopes.event_payload = NULL; |
e98a2d6e PP |
629 | } |
630 | ||
631 | static | |
312c056a | 632 | void release_all_dscopes(struct bt_notif_iter *notit) |
e98a2d6e | 633 | { |
312c056a PP |
634 | notit->dscopes.trace_packet_header = NULL; |
635 | ||
636 | if (notit->packet_header_field) { | |
637 | bt_packet_header_field_release(notit->packet_header_field); | |
638 | notit->packet_header_field = NULL; | |
639 | } | |
640 | ||
641 | notit->dscopes.stream_packet_context = NULL; | |
642 | ||
643 | if (notit->packet_context_field) { | |
644 | bt_packet_context_field_release(notit->packet_context_field); | |
645 | notit->packet_context_field = NULL; | |
646 | } | |
647 | ||
648 | release_event_dscopes(notit); | |
e98a2d6e PP |
649 | } |
650 | ||
651 | static | |
50842bdc PP |
652 | enum bt_notif_iter_status read_packet_header_begin_state( |
653 | struct bt_notif_iter *notit) | |
e98a2d6e | 654 | { |
5cd6d0e5 | 655 | struct ctf_field_class *packet_header_fc = NULL; |
50842bdc | 656 | enum bt_notif_iter_status ret = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e | 657 | |
50842bdc | 658 | if (bt_notif_iter_switch_packet(notit)) { |
fdf0e7a0 | 659 | BT_LOGW("Cannot switch packet: notit-addr=%p", notit); |
50842bdc | 660 | ret = BT_NOTIF_ITER_STATUS_ERROR; |
2cf1d51e JG |
661 | goto end; |
662 | } | |
e98a2d6e | 663 | |
5cd6d0e5 PP |
664 | /* Packet header class is common to the whole trace. */ |
665 | packet_header_fc = notit->meta.tc->packet_header_fc; | |
666 | if (!packet_header_fc) { | |
835b2d10 | 667 | notit->state = STATE_AFTER_TRACE_PACKET_HEADER; |
e98a2d6e PP |
668 | goto end; |
669 | } | |
670 | ||
312c056a | 671 | BT_ASSERT(!notit->packet_header_field); |
44c440bc | 672 | |
5cd6d0e5 | 673 | if (packet_header_fc->in_ir) { |
44c440bc PP |
674 | /* |
675 | * Create free packet header field from trace. This | |
676 | * field is going to be moved to the packet once we | |
677 | * create it. We cannot create the packet now because: | |
678 | * | |
679 | * 1. A packet is created from a stream. | |
680 | * 2. A stream is created from a stream class. | |
681 | * 3. We need the packet header field's content to know | |
682 | * the ID of the stream class to select. | |
683 | */ | |
684 | notit->packet_header_field = bt_packet_header_field_create( | |
685 | notit->meta.tc->ir_tc); | |
686 | if (!notit->packet_header_field) { | |
687 | BT_LOGE_STR("Cannot create packet header field wrapper from trace."); | |
688 | ret = BT_NOTIF_ITER_STATUS_ERROR; | |
689 | goto end; | |
690 | } | |
691 | ||
692 | notit->dscopes.trace_packet_header = | |
693 | bt_packet_header_field_borrow_field(notit->packet_header_field); | |
694 | BT_ASSERT(notit->dscopes.trace_packet_header); | |
312c056a PP |
695 | } |
696 | ||
44c440bc PP |
697 | notit->cur_stream_class_id = -1; |
698 | notit->cur_event_class_id = -1; | |
699 | notit->cur_data_stream_id = -1; | |
fdf0e7a0 | 700 | BT_LOGV("Decoding packet header field:" |
5cd6d0e5 | 701 | "notit-addr=%p, trace-addr=%p, trace-name=\"%s\", fc-addr=%p", |
44c440bc | 702 | notit, notit->meta.tc, |
5cd6d0e5 PP |
703 | notit->meta.tc->name->str, packet_header_fc); |
704 | ret = read_dscope_begin_state(notit, packet_header_fc, | |
fdf0e7a0 PP |
705 | STATE_AFTER_TRACE_PACKET_HEADER, |
706 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
312c056a | 707 | notit->dscopes.trace_packet_header); |
fdf0e7a0 PP |
708 | if (ret < 0) { |
709 | BT_LOGW("Cannot decode packet header field: " | |
710 | "notit-addr=%p, trace-addr=%p, " | |
5cd6d0e5 | 711 | "trace-name=\"%s\", fc-addr=%p", |
44c440bc PP |
712 | notit, notit->meta.tc, |
713 | notit->meta.tc->name->str, | |
5cd6d0e5 | 714 | packet_header_fc); |
fdf0e7a0 | 715 | } |
d1e46835 | 716 | |
e98a2d6e | 717 | end: |
2cf1d51e | 718 | return ret; |
e98a2d6e PP |
719 | } |
720 | ||
721 | static | |
50842bdc PP |
722 | enum bt_notif_iter_status read_packet_header_continue_state( |
723 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
724 | { |
725 | return read_dscope_continue_state(notit, | |
44c440bc | 726 | STATE_AFTER_TRACE_PACKET_HEADER); |
5f870343 JG |
727 | } |
728 | ||
e98a2d6e | 729 | static inline |
44c440bc | 730 | enum bt_notif_iter_status set_current_stream_class(struct bt_notif_iter *notit) |
e98a2d6e | 731 | { |
50842bdc | 732 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
44c440bc PP |
733 | struct ctf_stream_class *new_stream_class = NULL; |
734 | ||
735 | if (notit->cur_stream_class_id == -1) { | |
fdf0e7a0 | 736 | /* |
44c440bc PP |
737 | * No current stream class ID field, therefore only one |
738 | * stream class. | |
fdf0e7a0 | 739 | */ |
44c440bc PP |
740 | if (notit->meta.tc->stream_classes->len != 1) { |
741 | BT_LOGW("Need exactly one stream class since there's " | |
742 | "no stream class ID field: " | |
743 | "notit-addr=%p, trace-name=\"%s\"", | |
744 | notit, notit->meta.tc->name->str); | |
745 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
746 | goto end; | |
747 | } | |
e98a2d6e | 748 | |
44c440bc PP |
749 | new_stream_class = notit->meta.tc->stream_classes->pdata[0]; |
750 | notit->cur_stream_class_id = new_stream_class->id; | |
751 | goto end; | |
e98a2d6e PP |
752 | } |
753 | ||
44c440bc PP |
754 | new_stream_class = ctf_trace_class_borrow_stream_class_by_id( |
755 | notit->meta.tc, notit->cur_stream_class_id); | |
115de887 | 756 | if (!new_stream_class) { |
fdf0e7a0 PP |
757 | BT_LOGW("No stream class with ID of stream class ID to use in trace: " |
758 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " | |
759 | "trace-addr=%p, trace-name=\"%s\"", | |
44c440bc PP |
760 | notit, notit->cur_stream_class_id, notit->meta.tc, |
761 | notit->meta.tc->name->str); | |
50842bdc | 762 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
763 | goto end; |
764 | } | |
765 | ||
44c440bc PP |
766 | if (notit->meta.sc) { |
767 | if (new_stream_class != notit->meta.sc) { | |
115de887 PP |
768 | BT_LOGW("Two packets refer to two different stream classes within the same packet sequence: " |
769 | "notit-addr=%p, prev-stream-class-addr=%p, " | |
115de887 PP |
770 | "prev-stream-class-id=%" PRId64 ", " |
771 | "next-stream-class-addr=%p, " | |
115de887 PP |
772 | "next-stream-class-id=%" PRId64 ", " |
773 | "trace-addr=%p, trace-name=\"%s\"", | |
44c440bc PP |
774 | notit, notit->meta.sc, |
775 | notit->meta.sc->id, | |
115de887 | 776 | new_stream_class, |
44c440bc PP |
777 | new_stream_class->id, |
778 | notit->meta.tc, | |
779 | notit->meta.tc->name->str); | |
50842bdc | 780 | status = BT_NOTIF_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 PP |
796 | static inline |
797 | enum bt_notif_iter_status set_current_stream(struct bt_notif_iter *notit) | |
798 | { | |
799 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; | |
800 | struct bt_stream *stream = NULL; | |
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); | |
65300d60 | 806 | stream = bt_object_get_ref(notit->medium.medops.borrow_stream( |
44c440bc | 807 | notit->meta.sc->ir_sc, notit->cur_data_stream_id, |
312c056a PP |
808 | notit->medium.data)); |
809 | BT_LOGV("User function returned: stream-addr=%p", stream); | |
810 | if (!stream) { | |
44c440bc PP |
811 | BT_LOGW_STR("User function failed to return a stream object " |
812 | "for the given stream class."); | |
312c056a PP |
813 | status = BT_NOTIF_ITER_STATUS_ERROR; |
814 | goto end; | |
815 | } | |
816 | ||
817 | if (notit->stream && stream != notit->stream) { | |
44c440bc PP |
818 | BT_LOGW("User function returned a different stream than the " |
819 | "previous one for the same sequence of packets."); | |
312c056a PP |
820 | status = BT_NOTIF_ITER_STATUS_ERROR; |
821 | goto end; | |
822 | } | |
823 | ||
65300d60 | 824 | BT_OBJECT_MOVE_REF(notit->stream, stream); |
312c056a PP |
825 | |
826 | end: | |
65300d60 | 827 | bt_object_put_ref(stream); |
312c056a PP |
828 | return status; |
829 | } | |
830 | ||
831 | static inline | |
832 | enum bt_notif_iter_status set_current_packet(struct bt_notif_iter *notit) | |
833 | { | |
834 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; | |
835 | struct bt_packet *packet = NULL; | |
836 | ||
837 | BT_LOGV("Creating packet for packet notification: " | |
838 | "notit-addr=%p", notit); | |
839 | BT_LOGV("Creating packet from stream: " | |
840 | "notit-addr=%p, stream-addr=%p, " | |
841 | "stream-class-addr=%p, " | |
312c056a | 842 | "stream-class-id=%" PRId64, |
44c440bc PP |
843 | notit, notit->stream, notit->meta.sc, |
844 | notit->meta.sc->id); | |
312c056a PP |
845 | |
846 | /* Create packet */ | |
847 | BT_ASSERT(notit->stream); | |
44c440bc | 848 | packet = bt_packet_create(notit->stream); |
312c056a PP |
849 | if (!packet) { |
850 | BT_LOGE("Cannot create packet from stream: " | |
851 | "notit-addr=%p, stream-addr=%p, " | |
852 | "stream-class-addr=%p, " | |
312c056a | 853 | "stream-class-id=%" PRId64, |
44c440bc PP |
854 | notit, notit->stream, notit->meta.sc, |
855 | notit->meta.sc->id); | |
312c056a PP |
856 | goto error; |
857 | } | |
858 | ||
859 | goto end; | |
860 | ||
861 | error: | |
65300d60 | 862 | BT_OBJECT_PUT_REF_AND_RESET(packet); |
312c056a PP |
863 | status = BT_NOTIF_ITER_STATUS_ERROR; |
864 | ||
865 | end: | |
65300d60 | 866 | BT_OBJECT_MOVE_REF(notit->packet, packet); |
312c056a PP |
867 | return status; |
868 | } | |
869 | ||
e98a2d6e | 870 | static |
50842bdc PP |
871 | enum bt_notif_iter_status after_packet_header_state( |
872 | struct bt_notif_iter *notit) | |
e98a2d6e | 873 | { |
50842bdc | 874 | enum bt_notif_iter_status status; |
e98a2d6e PP |
875 | |
876 | status = set_current_stream_class(notit); | |
312c056a PP |
877 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
878 | goto end; | |
e98a2d6e PP |
879 | } |
880 | ||
312c056a PP |
881 | notit->state = STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN; |
882 | ||
883 | end: | |
e98a2d6e PP |
884 | return status; |
885 | } | |
886 | ||
887 | static | |
50842bdc PP |
888 | enum bt_notif_iter_status read_packet_context_begin_state( |
889 | struct bt_notif_iter *notit) | |
e98a2d6e | 890 | { |
50842bdc | 891 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
5cd6d0e5 | 892 | struct ctf_field_class *packet_context_fc; |
e98a2d6e | 893 | |
44c440bc | 894 | BT_ASSERT(notit->meta.sc); |
5cd6d0e5 PP |
895 | packet_context_fc = notit->meta.sc->packet_context_fc; |
896 | if (!packet_context_fc) { | |
897 | BT_LOGV("No packet packet context field class in stream class: continuing: " | |
fdf0e7a0 | 898 | "notit-addr=%p, stream-class-addr=%p, " |
44c440bc PP |
899 | "stream-class-id=%" PRId64, |
900 | notit, notit->meta.sc, | |
901 | notit->meta.sc->id); | |
835b2d10 | 902 | notit->state = STATE_AFTER_STREAM_PACKET_CONTEXT; |
e98a2d6e PP |
903 | goto end; |
904 | } | |
905 | ||
312c056a | 906 | BT_ASSERT(!notit->packet_context_field); |
44c440bc | 907 | |
5cd6d0e5 | 908 | if (packet_context_fc->in_ir) { |
44c440bc PP |
909 | /* |
910 | * Create free packet context field from stream class. | |
911 | * This field is going to be moved to the packet once we | |
912 | * create it. We cannot create the packet now because a | |
913 | * packet is created from a stream, and this API must be | |
914 | * able to return the packet header and context fields | |
915 | * without creating a stream | |
916 | * (bt_notif_iter_borrow_packet_header_context_fields()). | |
917 | */ | |
918 | notit->packet_context_field = | |
919 | bt_packet_context_field_create(notit->meta.sc->ir_sc); | |
920 | if (!notit->packet_context_field) { | |
921 | BT_LOGE_STR("Cannot create packet context field wrapper from stream class."); | |
922 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
923 | goto end; | |
924 | } | |
925 | ||
926 | notit->dscopes.stream_packet_context = | |
927 | bt_packet_context_field_borrow_field(notit->packet_context_field); | |
928 | BT_ASSERT(notit->dscopes.stream_packet_context); | |
312c056a PP |
929 | } |
930 | ||
fdf0e7a0 PP |
931 | BT_LOGV("Decoding packet context field: " |
932 | "notit-addr=%p, stream-class-addr=%p, " | |
5cd6d0e5 | 933 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc | 934 | notit, notit->meta.sc, |
5cd6d0e5 PP |
935 | notit->meta.sc->id, packet_context_fc); |
936 | status = read_dscope_begin_state(notit, packet_context_fc, | |
fdf0e7a0 PP |
937 | STATE_AFTER_STREAM_PACKET_CONTEXT, |
938 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
312c056a | 939 | notit->dscopes.stream_packet_context); |
fdf0e7a0 PP |
940 | if (status < 0) { |
941 | BT_LOGW("Cannot decode packet context field: " | |
942 | "notit-addr=%p, stream-class-addr=%p, " | |
5cd6d0e5 | 943 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
944 | notit, notit->meta.sc, |
945 | notit->meta.sc->id, | |
5cd6d0e5 | 946 | packet_context_fc); |
fdf0e7a0 | 947 | } |
e98a2d6e PP |
948 | |
949 | end: | |
e98a2d6e PP |
950 | return status; |
951 | } | |
952 | ||
953 | static | |
50842bdc PP |
954 | enum bt_notif_iter_status read_packet_context_continue_state( |
955 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
956 | { |
957 | return read_dscope_continue_state(notit, | |
78586d8a | 958 | STATE_AFTER_STREAM_PACKET_CONTEXT); |
e98a2d6e PP |
959 | } |
960 | ||
78586d8a | 961 | static |
50842bdc PP |
962 | enum bt_notif_iter_status set_current_packet_content_sizes( |
963 | struct bt_notif_iter *notit) | |
e98a2d6e | 964 | { |
50842bdc | 965 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e | 966 | |
44c440bc PP |
967 | if (notit->cur_exp_packet_total_size == -1) { |
968 | if (notit->cur_exp_packet_content_size != -1) { | |
969 | BT_LOGW("Content size is set, but packet size is not: " | |
fdf0e7a0 | 970 | "notit-addr=%p, packet-context-field-addr=%p, " |
44c440bc | 971 | "packet-size=%" PRId64 ", content-size=%" PRId64, |
fdf0e7a0 | 972 | notit, notit->dscopes.stream_packet_context, |
44c440bc PP |
973 | notit->cur_exp_packet_total_size, |
974 | notit->cur_exp_packet_content_size); | |
50842bdc | 975 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
976 | goto end; |
977 | } | |
e98a2d6e | 978 | } else { |
44c440bc PP |
979 | if (notit->cur_exp_packet_content_size == -1) { |
980 | notit->cur_exp_packet_content_size = | |
981 | notit->cur_exp_packet_total_size; | |
982 | } | |
e98a2d6e PP |
983 | } |
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); | |
50842bdc | 994 | status = BT_NOTIF_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); | |
e98a2d6e | 1002 | end: |
e98a2d6e PP |
1003 | return status; |
1004 | } | |
1005 | ||
1006 | static | |
50842bdc PP |
1007 | enum bt_notif_iter_status after_packet_context_state( |
1008 | struct bt_notif_iter *notit) | |
e98a2d6e | 1009 | { |
50842bdc | 1010 | enum bt_notif_iter_status status; |
e98a2d6e PP |
1011 | |
1012 | status = set_current_packet_content_sizes(notit); | |
e22b45d0 PP |
1013 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
1014 | goto end; | |
1015 | } | |
1016 | ||
e22b45d0 PP |
1017 | if (notit->stream_begin_emitted) { |
1018 | notit->state = STATE_EMIT_NOTIF_NEW_PACKET; | |
1019 | } else { | |
1020 | notit->state = STATE_EMIT_NOTIF_NEW_STREAM; | |
e98a2d6e PP |
1021 | } |
1022 | ||
e22b45d0 | 1023 | end: |
e98a2d6e PP |
1024 | return status; |
1025 | } | |
1026 | ||
1027 | static | |
50842bdc PP |
1028 | enum bt_notif_iter_status read_event_header_begin_state( |
1029 | struct bt_notif_iter *notit) | |
e98a2d6e | 1030 | { |
50842bdc | 1031 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
5cd6d0e5 | 1032 | struct ctf_field_class *event_header_fc = NULL; |
e98a2d6e | 1033 | |
174e773b PP |
1034 | /* Reset the position of the last event header */ |
1035 | notit->buf.last_eh_at = notit->buf.at; | |
44c440bc | 1036 | notit->cur_event_class_id = -1; |
174e773b | 1037 | |
e98a2d6e | 1038 | /* Check if we have some content left */ |
44c440bc PP |
1039 | if (notit->cur_exp_packet_content_size >= 0) { |
1040 | if (unlikely(packet_at(notit) == | |
1041 | notit->cur_exp_packet_content_size)) { | |
e98a2d6e | 1042 | /* No more events! */ |
fdf0e7a0 PP |
1043 | BT_LOGV("Reached end of packet: notit-addr=%p, " |
1044 | "cur=%zu", notit, packet_at(notit)); | |
e98a2d6e PP |
1045 | notit->state = STATE_EMIT_NOTIF_END_OF_PACKET; |
1046 | goto end; | |
44c440bc PP |
1047 | } else if (unlikely(packet_at(notit) > |
1048 | notit->cur_exp_packet_content_size)) { | |
e98a2d6e | 1049 | /* That's not supposed to happen */ |
fdf0e7a0 | 1050 | BT_LOGV("Before decoding event header field: cursor is passed the packet's content: " |
1974687e | 1051 | "notit-addr=%p, content-size=%" PRId64 ", " |
44c440bc PP |
1052 | "cur=%zu", notit, |
1053 | notit->cur_exp_packet_content_size, | |
fdf0e7a0 | 1054 | packet_at(notit)); |
50842bdc | 1055 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
1056 | goto end; |
1057 | } | |
44c440bc PP |
1058 | } else { |
1059 | /* | |
1060 | * "Infinite" content: we're done when the medium has | |
1061 | * nothing else for us. | |
1062 | */ | |
1063 | status = buf_ensure_available_bits(notit); | |
1064 | if (status != BT_NOTIF_ITER_STATUS_OK) { | |
1065 | /* | |
1066 | * If this function returns | |
1067 | * `BT_NOTIF_ITER_STATUS_EOF`: | |
1068 | * | |
1069 | * 1. bt_notif_iter_get_next_notification() | |
1070 | * emits a "packet end" notification. This | |
1071 | * resets the current packet. The state | |
1072 | * remains unchanged otherwise. | |
1073 | * 2. This function is called again. It returns | |
1074 | * `BT_NOTIF_ITER_STATUS_EOF` again. | |
1075 | * 3. bt_notif_iter_get_next_notification() | |
1076 | * emits a "stream end" notification because | |
1077 | * there's no current packet. It sets the | |
1078 | * current state to `STATE_DONE`. | |
1079 | */ | |
1080 | goto end; | |
1081 | } | |
e98a2d6e PP |
1082 | } |
1083 | ||
312c056a | 1084 | release_event_dscopes(notit); |
44c440bc | 1085 | BT_ASSERT(notit->meta.sc); |
5cd6d0e5 PP |
1086 | event_header_fc = notit->meta.sc->event_header_fc; |
1087 | if (!event_header_fc) { | |
44c440bc | 1088 | notit->state = STATE_AFTER_EVENT_HEADER; |
e98a2d6e PP |
1089 | goto end; |
1090 | } | |
1091 | ||
5cd6d0e5 | 1092 | if (event_header_fc->in_ir) { |
44c440bc PP |
1093 | BT_ASSERT(!notit->event_header_field); |
1094 | notit->event_header_field = bt_event_header_field_create( | |
1095 | notit->meta.sc->ir_sc); | |
1096 | if (!notit->event_header_field) { | |
1097 | BT_LOGE_STR("Cannot create event header field wrapper from trace."); | |
1098 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1099 | goto end; | |
1100 | } | |
1101 | ||
1102 | notit->dscopes.event_header = | |
1103 | bt_event_header_field_borrow_field(notit->event_header_field); | |
1104 | BT_ASSERT(notit->dscopes.event_header); | |
312c056a PP |
1105 | } |
1106 | ||
fdf0e7a0 PP |
1107 | BT_LOGV("Decoding event header field: " |
1108 | "notit-addr=%p, stream-class-addr=%p, " | |
44c440bc | 1109 | "stream-class-id=%" PRId64 ", " |
5cd6d0e5 | 1110 | "fc-addr=%p", |
44c440bc PP |
1111 | notit, notit->meta.sc, |
1112 | notit->meta.sc->id, | |
5cd6d0e5 PP |
1113 | event_header_fc); |
1114 | status = read_dscope_begin_state(notit, event_header_fc, | |
44c440bc PP |
1115 | STATE_AFTER_EVENT_HEADER, |
1116 | STATE_DSCOPE_EVENT_HEADER_CONTINUE, | |
1117 | notit->dscopes.event_header); | |
fdf0e7a0 PP |
1118 | if (status < 0) { |
1119 | BT_LOGW("Cannot decode event header field: " | |
1120 | "notit-addr=%p, stream-class-addr=%p, " | |
5cd6d0e5 | 1121 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1122 | notit, notit->meta.sc, |
1123 | notit->meta.sc->id, | |
5cd6d0e5 | 1124 | event_header_fc); |
fdf0e7a0 | 1125 | } |
e98a2d6e | 1126 | |
d1e46835 | 1127 | end: |
e98a2d6e PP |
1128 | return status; |
1129 | } | |
1130 | ||
1131 | static | |
50842bdc PP |
1132 | enum bt_notif_iter_status read_event_header_continue_state( |
1133 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1134 | { |
1135 | return read_dscope_continue_state(notit, | |
44c440bc | 1136 | STATE_AFTER_EVENT_HEADER); |
e98a2d6e PP |
1137 | } |
1138 | ||
1139 | static inline | |
50842bdc | 1140 | enum bt_notif_iter_status set_current_event_class(struct bt_notif_iter *notit) |
e98a2d6e | 1141 | { |
50842bdc | 1142 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e | 1143 | |
44c440bc | 1144 | struct ctf_event_class *new_event_class = NULL; |
e98a2d6e | 1145 | |
44c440bc | 1146 | if (notit->cur_event_class_id == -1) { |
e98a2d6e | 1147 | /* |
44c440bc PP |
1148 | * No current event class ID field, therefore only one |
1149 | * event class. | |
e98a2d6e | 1150 | */ |
44c440bc PP |
1151 | if (notit->meta.sc->event_classes->len != 1) { |
1152 | BT_LOGW("Need exactly one event class since there's " | |
1153 | "no event class ID field: " | |
1154 | "notit-addr=%p, trace-name=\"%s\"", | |
1155 | notit, notit->meta.tc->name->str); | |
1156 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1157 | goto end; | |
fdf0e7a0 | 1158 | } |
e98a2d6e | 1159 | |
44c440bc PP |
1160 | new_event_class = notit->meta.sc->event_classes->pdata[0]; |
1161 | notit->cur_event_class_id = new_event_class->id; | |
1162 | goto end; | |
e98a2d6e PP |
1163 | } |
1164 | ||
44c440bc PP |
1165 | new_event_class = ctf_stream_class_borrow_event_class_by_id( |
1166 | notit->meta.sc, notit->cur_event_class_id); | |
1167 | if (!new_event_class) { | |
fdf0e7a0 | 1168 | BT_LOGW("No event class with ID of event class ID to use in stream class: " |
44c440bc PP |
1169 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " |
1170 | "event-class-id=%" PRIu64 ", " | |
1171 | "trace-addr=%p, trace-name=\"%s\"", | |
1172 | notit, notit->meta.sc->id, notit->cur_event_class_id, | |
1173 | notit->meta.tc, notit->meta.tc->name->str); | |
50842bdc | 1174 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
1175 | goto end; |
1176 | } | |
1177 | ||
44c440bc | 1178 | notit->meta.ec = new_event_class; |
fdf0e7a0 PP |
1179 | BT_LOGV("Set current event class: " |
1180 | "notit-addr=%p, event-class-addr=%p, " | |
44c440bc PP |
1181 | "event-class-id=%" PRId64 ", " |
1182 | "event-class-name=\"%s\"", | |
1183 | notit, notit->meta.ec, notit->meta.ec->id, | |
1184 | notit->meta.ec->name->str); | |
fdf0e7a0 | 1185 | |
e98a2d6e | 1186 | end: |
e98a2d6e PP |
1187 | return status; |
1188 | } | |
1189 | ||
312c056a PP |
1190 | static inline |
1191 | enum bt_notif_iter_status set_current_event_notification( | |
1192 | struct bt_notif_iter *notit) | |
1193 | { | |
1194 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; | |
1195 | struct bt_notification *notif = NULL; | |
1196 | ||
44c440bc | 1197 | BT_ASSERT(notit->meta.ec); |
312c056a PP |
1198 | BT_ASSERT(notit->packet); |
1199 | BT_LOGV("Creating event notification from event class and packet: " | |
1200 | "notit-addr=%p, ec-addr=%p, ec-name=\"%s\", packet-addr=%p", | |
44c440bc PP |
1201 | notit, notit->meta.ec, |
1202 | notit->meta.ec->name->str, | |
312c056a | 1203 | notit->packet); |
f0010051 PP |
1204 | BT_ASSERT(notit->notif_iter); |
1205 | notif = bt_notification_event_create(notit->notif_iter, | |
44c440bc | 1206 | notit->meta.ec->ir_ec, notit->packet); |
312c056a PP |
1207 | if (!notif) { |
1208 | BT_LOGE("Cannot create event notification: " | |
1209 | "notit-addr=%p, ec-addr=%p, ec-name=\"%s\", " | |
1210 | "packet-addr=%p", | |
44c440bc PP |
1211 | notit, notit->meta.ec, |
1212 | notit->meta.ec->name->str, | |
312c056a PP |
1213 | notit->packet); |
1214 | goto error; | |
1215 | } | |
1216 | ||
1217 | goto end; | |
1218 | ||
1219 | error: | |
65300d60 | 1220 | BT_OBJECT_PUT_REF_AND_RESET(notif); |
312c056a PP |
1221 | status = BT_NOTIF_ITER_STATUS_ERROR; |
1222 | ||
1223 | end: | |
65300d60 | 1224 | BT_OBJECT_MOVE_REF(notit->event_notif, notif); |
312c056a PP |
1225 | return status; |
1226 | } | |
1227 | ||
e98a2d6e | 1228 | static |
50842bdc PP |
1229 | enum bt_notif_iter_status after_event_header_state( |
1230 | struct bt_notif_iter *notit) | |
e98a2d6e | 1231 | { |
50842bdc | 1232 | enum bt_notif_iter_status status; |
e98a2d6e | 1233 | |
e98a2d6e | 1234 | status = set_current_event_class(notit); |
50842bdc | 1235 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
e98a2d6e PP |
1236 | goto end; |
1237 | } | |
1238 | ||
312c056a PP |
1239 | status = set_current_event_notification(notit); |
1240 | if (status != BT_NOTIF_ITER_STATUS_OK) { | |
1241 | goto end; | |
1242 | } | |
1243 | ||
1244 | notit->event = bt_notification_event_borrow_event(notit->event_notif); | |
1245 | BT_ASSERT(notit->event); | |
1246 | ||
1247 | if (notit->event_header_field) { | |
1248 | int ret; | |
1249 | ||
1250 | BT_ASSERT(notit->event); | |
1251 | ret = bt_event_move_header(notit->event, | |
1252 | notit->event_header_field); | |
312c056a PP |
1253 | if (ret) { |
1254 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1255 | goto end; | |
1256 | } | |
1257 | ||
1258 | notit->event_header_field = NULL; | |
1259 | ||
1260 | /* | |
44c440bc | 1261 | * At this point notit->dscopes.event_header has |
312c056a PP |
1262 | * the same value as the event header field within |
1263 | * notit->event. | |
1264 | */ | |
44c440bc PP |
1265 | BT_ASSERT(bt_event_borrow_header_field(notit->event) == |
1266 | notit->dscopes.event_header); | |
312c056a PP |
1267 | } |
1268 | ||
44c440bc | 1269 | notit->state = STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN; |
e98a2d6e PP |
1270 | |
1271 | end: | |
1272 | return status; | |
1273 | } | |
1274 | ||
1275 | static | |
44c440bc | 1276 | enum bt_notif_iter_status read_event_common_context_begin_state( |
50842bdc | 1277 | struct bt_notif_iter *notit) |
e98a2d6e | 1278 | { |
50842bdc | 1279 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
5cd6d0e5 | 1280 | struct ctf_field_class *event_common_context_fc; |
e98a2d6e | 1281 | |
5cd6d0e5 PP |
1282 | event_common_context_fc = notit->meta.sc->event_common_context_fc; |
1283 | if (!event_common_context_fc) { | |
44c440bc | 1284 | notit->state = STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN; |
e98a2d6e PP |
1285 | goto end; |
1286 | } | |
1287 | ||
5cd6d0e5 | 1288 | if (event_common_context_fc->in_ir) { |
44c440bc PP |
1289 | BT_ASSERT(!notit->dscopes.event_common_context); |
1290 | notit->dscopes.event_common_context = | |
1291 | bt_event_borrow_common_context_field(notit->event); | |
1292 | BT_ASSERT(notit->dscopes.event_common_context); | |
1293 | } | |
1294 | ||
1295 | BT_LOGV("Decoding event common context field: " | |
fdf0e7a0 | 1296 | "notit-addr=%p, stream-class-addr=%p, " |
44c440bc | 1297 | "stream-class-id=%" PRId64 ", " |
5cd6d0e5 | 1298 | "fc-addr=%p", |
44c440bc PP |
1299 | notit, notit->meta.sc, |
1300 | notit->meta.sc->id, | |
5cd6d0e5 PP |
1301 | event_common_context_fc); |
1302 | status = read_dscope_begin_state(notit, event_common_context_fc, | |
44c440bc PP |
1303 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN, |
1304 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE, | |
1305 | notit->dscopes.event_common_context); | |
fdf0e7a0 | 1306 | if (status < 0) { |
44c440bc | 1307 | BT_LOGW("Cannot decode event common context field: " |
fdf0e7a0 | 1308 | "notit-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 1309 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1310 | notit, notit->meta.sc, |
1311 | notit->meta.sc->id, | |
5cd6d0e5 | 1312 | event_common_context_fc); |
fdf0e7a0 | 1313 | } |
e98a2d6e PP |
1314 | |
1315 | end: | |
e98a2d6e PP |
1316 | return status; |
1317 | } | |
1318 | ||
1319 | static | |
44c440bc | 1320 | enum bt_notif_iter_status read_event_common_context_continue_state( |
50842bdc | 1321 | struct bt_notif_iter *notit) |
e98a2d6e PP |
1322 | { |
1323 | return read_dscope_continue_state(notit, | |
44c440bc | 1324 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN); |
e98a2d6e PP |
1325 | } |
1326 | ||
1327 | static | |
44c440bc | 1328 | enum bt_notif_iter_status read_event_spec_context_begin_state( |
50842bdc | 1329 | struct bt_notif_iter *notit) |
e98a2d6e | 1330 | { |
50842bdc | 1331 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
5cd6d0e5 | 1332 | struct ctf_field_class *event_spec_context_fc; |
e98a2d6e | 1333 | |
5cd6d0e5 PP |
1334 | event_spec_context_fc = notit->meta.ec->spec_context_fc; |
1335 | if (!event_spec_context_fc) { | |
835b2d10 | 1336 | notit->state = STATE_DSCOPE_EVENT_PAYLOAD_BEGIN; |
e98a2d6e PP |
1337 | goto end; |
1338 | } | |
fdf0e7a0 | 1339 | |
5cd6d0e5 | 1340 | if (event_spec_context_fc->in_ir) { |
44c440bc PP |
1341 | BT_ASSERT(!notit->dscopes.event_spec_context); |
1342 | notit->dscopes.event_spec_context = bt_event_borrow_specific_context_field( | |
1343 | notit->event); | |
1344 | BT_ASSERT(notit->dscopes.event_spec_context); | |
1345 | } | |
1346 | ||
1347 | BT_LOGV("Decoding event specific context field: " | |
fdf0e7a0 PP |
1348 | "notit-addr=%p, event-class-addr=%p, " |
1349 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
5cd6d0e5 | 1350 | "fc-addr=%p", |
44c440bc PP |
1351 | notit, notit->meta.ec, |
1352 | notit->meta.ec->name->str, | |
1353 | notit->meta.ec->id, | |
5cd6d0e5 PP |
1354 | event_spec_context_fc); |
1355 | status = read_dscope_begin_state(notit, event_spec_context_fc, | |
e98a2d6e | 1356 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, |
44c440bc PP |
1357 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE, |
1358 | notit->dscopes.event_spec_context); | |
fdf0e7a0 | 1359 | if (status < 0) { |
44c440bc | 1360 | BT_LOGW("Cannot decode event specific context field: " |
fdf0e7a0 PP |
1361 | "notit-addr=%p, event-class-addr=%p, " |
1362 | "event-class-name=\"%s\", " | |
5cd6d0e5 | 1363 | "event-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1364 | notit, notit->meta.ec, |
1365 | notit->meta.ec->name->str, | |
1366 | notit->meta.ec->id, | |
5cd6d0e5 | 1367 | event_spec_context_fc); |
fdf0e7a0 | 1368 | } |
e98a2d6e PP |
1369 | |
1370 | end: | |
e98a2d6e PP |
1371 | return status; |
1372 | } | |
1373 | ||
1374 | static | |
44c440bc | 1375 | enum bt_notif_iter_status read_event_spec_context_continue_state( |
50842bdc | 1376 | struct bt_notif_iter *notit) |
e98a2d6e PP |
1377 | { |
1378 | return read_dscope_continue_state(notit, | |
1379 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN); | |
1380 | } | |
1381 | ||
1382 | static | |
50842bdc PP |
1383 | enum bt_notif_iter_status read_event_payload_begin_state( |
1384 | struct bt_notif_iter *notit) | |
e98a2d6e | 1385 | { |
50842bdc | 1386 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
5cd6d0e5 | 1387 | struct ctf_field_class *event_payload_fc; |
e98a2d6e | 1388 | |
5cd6d0e5 PP |
1389 | event_payload_fc = notit->meta.ec->payload_fc; |
1390 | if (!event_payload_fc) { | |
835b2d10 | 1391 | notit->state = STATE_EMIT_NOTIF_EVENT; |
e98a2d6e PP |
1392 | goto end; |
1393 | } | |
1394 | ||
5cd6d0e5 | 1395 | if (event_payload_fc->in_ir) { |
44c440bc PP |
1396 | BT_ASSERT(!notit->dscopes.event_payload); |
1397 | notit->dscopes.event_payload = bt_event_borrow_payload_field( | |
1398 | notit->event); | |
1399 | BT_ASSERT(notit->dscopes.event_payload); | |
1400 | } | |
1401 | ||
fdf0e7a0 PP |
1402 | BT_LOGV("Decoding event payload field: " |
1403 | "notit-addr=%p, event-class-addr=%p, " | |
1404 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
5cd6d0e5 | 1405 | "fc-addr=%p", |
44c440bc PP |
1406 | notit, notit->meta.ec, |
1407 | notit->meta.ec->name->str, | |
1408 | notit->meta.ec->id, | |
5cd6d0e5 PP |
1409 | event_payload_fc); |
1410 | status = read_dscope_begin_state(notit, event_payload_fc, | |
e98a2d6e PP |
1411 | STATE_EMIT_NOTIF_EVENT, |
1412 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
312c056a | 1413 | notit->dscopes.event_payload); |
fdf0e7a0 PP |
1414 | if (status < 0) { |
1415 | BT_LOGW("Cannot decode event payload field: " | |
1416 | "notit-addr=%p, event-class-addr=%p, " | |
1417 | "event-class-name=\"%s\", " | |
5cd6d0e5 | 1418 | "event-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1419 | notit, notit->meta.ec, |
1420 | notit->meta.ec->name->str, | |
1421 | notit->meta.ec->id, | |
5cd6d0e5 | 1422 | event_payload_fc); |
fdf0e7a0 | 1423 | } |
e98a2d6e PP |
1424 | |
1425 | end: | |
e98a2d6e PP |
1426 | return status; |
1427 | } | |
1428 | ||
1429 | static | |
50842bdc PP |
1430 | enum bt_notif_iter_status read_event_payload_continue_state( |
1431 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1432 | { |
1433 | return read_dscope_continue_state(notit, STATE_EMIT_NOTIF_EVENT); | |
1434 | } | |
1435 | ||
1436 | static | |
50842bdc PP |
1437 | enum bt_notif_iter_status skip_packet_padding_state( |
1438 | struct bt_notif_iter *notit) | |
e98a2d6e | 1439 | { |
50842bdc | 1440 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e PP |
1441 | size_t bits_to_skip; |
1442 | ||
44c440bc PP |
1443 | BT_ASSERT(notit->cur_exp_packet_total_size > 0); |
1444 | bits_to_skip = notit->cur_exp_packet_total_size - packet_at(notit); | |
e98a2d6e PP |
1445 | if (bits_to_skip == 0) { |
1446 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1447 | goto end; | |
1448 | } else { | |
1449 | size_t bits_to_consume; | |
fdf0e7a0 PP |
1450 | |
1451 | BT_LOGV("Trying to skip %zu bits of padding: notit-addr=%p, size=%zu", | |
1452 | bits_to_skip, notit, bits_to_skip); | |
e98a2d6e | 1453 | status = buf_ensure_available_bits(notit); |
50842bdc | 1454 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
e98a2d6e PP |
1455 | goto end; |
1456 | } | |
1457 | ||
1458 | bits_to_consume = MIN(buf_available_bits(notit), bits_to_skip); | |
fdf0e7a0 PP |
1459 | BT_LOGV("Skipping %zu bits of padding: notit-addr=%p, size=%zu", |
1460 | bits_to_consume, notit, bits_to_consume); | |
e98a2d6e | 1461 | buf_consume_bits(notit, bits_to_consume); |
44c440bc PP |
1462 | bits_to_skip = notit->cur_exp_packet_total_size - |
1463 | packet_at(notit); | |
e98a2d6e PP |
1464 | if (bits_to_skip == 0) { |
1465 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1466 | goto end; | |
1467 | } | |
1468 | } | |
1469 | ||
1470 | end: | |
1471 | return status; | |
1472 | } | |
1473 | ||
1474 | static inline | |
50842bdc | 1475 | enum bt_notif_iter_status handle_state(struct bt_notif_iter *notit) |
e98a2d6e | 1476 | { |
50842bdc | 1477 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
fdf0e7a0 | 1478 | const enum state state = notit->state; |
e98a2d6e | 1479 | |
fdf0e7a0 PP |
1480 | BT_LOGV("Handling state: notit-addr=%p, state=%s", |
1481 | notit, state_string(state)); | |
e98a2d6e PP |
1482 | |
1483 | // TODO: optimalize! | |
fdf0e7a0 | 1484 | switch (state) { |
e98a2d6e PP |
1485 | case STATE_INIT: |
1486 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1487 | break; | |
1488 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
1489 | status = read_packet_header_begin_state(notit); | |
1490 | break; | |
1491 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
1492 | status = read_packet_header_continue_state(notit); | |
1493 | break; | |
1494 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
1495 | status = after_packet_header_state(notit); | |
1496 | break; | |
1497 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
1498 | status = read_packet_context_begin_state(notit); | |
1499 | break; | |
1500 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
1501 | status = read_packet_context_continue_state(notit); | |
1502 | break; | |
1503 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
1504 | status = after_packet_context_state(notit); | |
1505 | break; | |
f42867e2 PP |
1506 | case STATE_EMIT_NOTIF_NEW_STREAM: |
1507 | notit->state = STATE_EMIT_NOTIF_NEW_PACKET; | |
1508 | break; | |
e98a2d6e | 1509 | case STATE_EMIT_NOTIF_NEW_PACKET: |
44c440bc | 1510 | notit->state = STATE_DSCOPE_EVENT_HEADER_BEGIN; |
e98a2d6e | 1511 | break; |
44c440bc | 1512 | case STATE_DSCOPE_EVENT_HEADER_BEGIN: |
e98a2d6e PP |
1513 | status = read_event_header_begin_state(notit); |
1514 | break; | |
44c440bc | 1515 | case STATE_DSCOPE_EVENT_HEADER_CONTINUE: |
e98a2d6e PP |
1516 | status = read_event_header_continue_state(notit); |
1517 | break; | |
44c440bc | 1518 | case STATE_AFTER_EVENT_HEADER: |
e98a2d6e PP |
1519 | status = after_event_header_state(notit); |
1520 | break; | |
44c440bc PP |
1521 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN: |
1522 | status = read_event_common_context_begin_state(notit); | |
e98a2d6e | 1523 | break; |
44c440bc PP |
1524 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE: |
1525 | status = read_event_common_context_continue_state(notit); | |
e98a2d6e | 1526 | break; |
44c440bc PP |
1527 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN: |
1528 | status = read_event_spec_context_begin_state(notit); | |
e98a2d6e | 1529 | break; |
44c440bc PP |
1530 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE: |
1531 | status = read_event_spec_context_continue_state(notit); | |
e98a2d6e PP |
1532 | break; |
1533 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
1534 | status = read_event_payload_begin_state(notit); | |
1535 | break; | |
1536 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
1537 | status = read_event_payload_continue_state(notit); | |
1538 | break; | |
1539 | case STATE_EMIT_NOTIF_EVENT: | |
44c440bc | 1540 | notit->state = STATE_DSCOPE_EVENT_HEADER_BEGIN; |
e98a2d6e PP |
1541 | break; |
1542 | case STATE_SKIP_PACKET_PADDING: | |
1543 | status = skip_packet_padding_state(notit); | |
1544 | break; | |
1545 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
1546 | notit->state = STATE_SKIP_PACKET_PADDING; | |
1547 | break; | |
fdf0e7a0 PP |
1548 | default: |
1549 | BT_LOGD("Unknown CTF plugin notification iterator state: " | |
1550 | "notit-addr=%p, state=%d", notit, notit->state); | |
1551 | abort(); | |
e98a2d6e PP |
1552 | } |
1553 | ||
fdf0e7a0 PP |
1554 | BT_LOGV("Handled state: notit-addr=%p, status=%s, " |
1555 | "prev-state=%s, cur-state=%s", | |
50842bdc | 1556 | notit, bt_notif_iter_status_string(status), |
fdf0e7a0 | 1557 | state_string(state), state_string(notit->state)); |
e98a2d6e PP |
1558 | return status; |
1559 | } | |
1560 | ||
2cf1d51e JG |
1561 | /** |
1562 | * Resets the internal state of a CTF notification iterator. | |
2cf1d51e | 1563 | */ |
f42867e2 | 1564 | BT_HIDDEN |
50842bdc | 1565 | void bt_notif_iter_reset(struct bt_notif_iter *notit) |
e98a2d6e | 1566 | { |
f6ccaed9 | 1567 | BT_ASSERT(notit); |
fdf0e7a0 | 1568 | BT_LOGD("Resetting notification iterator: addr=%p", notit); |
e98a2d6e | 1569 | stack_clear(notit->stack); |
44c440bc PP |
1570 | notit->meta.sc = NULL; |
1571 | notit->meta.ec = NULL; | |
65300d60 PP |
1572 | BT_OBJECT_PUT_REF_AND_RESET(notit->packet); |
1573 | BT_OBJECT_PUT_REF_AND_RESET(notit->stream); | |
1574 | BT_OBJECT_PUT_REF_AND_RESET(notit->event_notif); | |
312c056a PP |
1575 | release_all_dscopes(notit); |
1576 | notit->cur_dscope_field = NULL; | |
1577 | ||
1578 | if (notit->packet_header_field) { | |
1579 | bt_packet_header_field_release(notit->packet_header_field); | |
1580 | notit->packet_header_field = NULL; | |
1581 | } | |
1582 | ||
1583 | if (notit->packet_context_field) { | |
1584 | bt_packet_context_field_release(notit->packet_context_field); | |
1585 | notit->packet_context_field = NULL; | |
1586 | } | |
1587 | ||
1588 | if (notit->event_header_field) { | |
1589 | bt_event_header_field_release(notit->event_header_field); | |
1590 | notit->event_header_field = NULL; | |
1591 | } | |
1592 | ||
e98a2d6e PP |
1593 | notit->buf.addr = NULL; |
1594 | notit->buf.sz = 0; | |
1595 | notit->buf.at = 0; | |
2b186c3e | 1596 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
1597 | notit->buf.packet_offset = 0; |
1598 | notit->state = STATE_INIT; | |
44c440bc PP |
1599 | notit->cur_exp_packet_content_size = -1; |
1600 | notit->cur_exp_packet_total_size = -1; | |
9e0c8dbb | 1601 | notit->cur_packet_offset = -1; |
44c440bc PP |
1602 | notit->cur_stream_class_id = -1; |
1603 | notit->cur_event_class_id = -1; | |
1604 | notit->cur_data_stream_id = -1; | |
f42867e2 | 1605 | notit->stream_begin_emitted = false; |
e98a2d6e PP |
1606 | } |
1607 | ||
2cf1d51e | 1608 | static |
50842bdc | 1609 | int bt_notif_iter_switch_packet(struct bt_notif_iter *notit) |
2cf1d51e JG |
1610 | { |
1611 | int ret = 0; | |
1612 | ||
115de887 PP |
1613 | /* |
1614 | * We don't put the stream class here because we need to make | |
1615 | * sure that all the packets processed by the same notification | |
1616 | * iterator refer to the same stream class (the first one). | |
1617 | */ | |
f6ccaed9 | 1618 | BT_ASSERT(notit); |
312c056a | 1619 | |
44c440bc PP |
1620 | if (notit->cur_exp_packet_total_size != -1) { |
1621 | notit->cur_packet_offset += notit->cur_exp_packet_total_size; | |
9e0c8dbb | 1622 | } |
312c056a | 1623 | |
9e0c8dbb JG |
1624 | BT_LOGV("Switching packet: notit-addr=%p, cur=%zu, " |
1625 | "packet-offset=%" PRId64, notit, notit->buf.at, | |
1626 | notit->cur_packet_offset); | |
2cf1d51e | 1627 | stack_clear(notit->stack); |
44c440bc | 1628 | notit->meta.ec = NULL; |
65300d60 PP |
1629 | BT_OBJECT_PUT_REF_AND_RESET(notit->packet); |
1630 | BT_OBJECT_PUT_REF_AND_RESET(notit->event_notif); | |
312c056a PP |
1631 | release_all_dscopes(notit); |
1632 | notit->cur_dscope_field = NULL; | |
2cf1d51e JG |
1633 | |
1634 | /* | |
1635 | * Adjust current buffer so that addr points to the beginning of the new | |
1636 | * packet. | |
1637 | */ | |
1638 | if (notit->buf.addr) { | |
1639 | size_t consumed_bytes = (size_t) (notit->buf.at / CHAR_BIT); | |
1640 | ||
1641 | /* Packets are assumed to start on a byte frontier. */ | |
1642 | if (notit->buf.at % CHAR_BIT) { | |
fdf0e7a0 PP |
1643 | BT_LOGW("Cannot switch packet: current position is not a multiple of 8: " |
1644 | "notit-addr=%p, cur=%zu", notit, notit->buf.at); | |
2cf1d51e JG |
1645 | ret = -1; |
1646 | goto end; | |
1647 | } | |
1648 | ||
1649 | notit->buf.addr += consumed_bytes; | |
1650 | notit->buf.sz -= consumed_bytes; | |
1651 | notit->buf.at = 0; | |
1652 | notit->buf.packet_offset = 0; | |
fdf0e7a0 PP |
1653 | BT_LOGV("Adjusted buffer: addr=%p, size=%zu", |
1654 | notit->buf.addr, notit->buf.sz); | |
2cf1d51e JG |
1655 | } |
1656 | ||
44c440bc PP |
1657 | notit->cur_exp_packet_content_size = -1; |
1658 | notit->cur_exp_packet_total_size = -1; | |
1659 | notit->cur_stream_class_id = -1; | |
1660 | notit->cur_event_class_id = -1; | |
1661 | notit->cur_data_stream_id = -1; | |
1662 | notit->snapshots.discarded_events = UINT64_C(-1); | |
1663 | notit->snapshots.packets = UINT64_C(-1); | |
1664 | notit->snapshots.beginning_clock = UINT64_C(-1); | |
1665 | notit->snapshots.end_clock = UINT64_C(-1); | |
fdf0e7a0 | 1666 | |
2cf1d51e JG |
1667 | end: |
1668 | return ret; | |
1669 | } | |
1670 | ||
e98a2d6e | 1671 | static |
312c056a | 1672 | struct bt_field *borrow_next_field(struct bt_notif_iter *notit) |
e98a2d6e | 1673 | { |
50842bdc PP |
1674 | struct bt_field *next_field = NULL; |
1675 | struct bt_field *base_field; | |
5cd6d0e5 | 1676 | struct bt_field_class *base_fc; |
e98a2d6e PP |
1677 | size_t index; |
1678 | ||
f6ccaed9 | 1679 | BT_ASSERT(!stack_empty(notit->stack)); |
e98a2d6e PP |
1680 | index = stack_top(notit->stack)->index; |
1681 | base_field = stack_top(notit->stack)->base; | |
f6ccaed9 | 1682 | BT_ASSERT(base_field); |
5cd6d0e5 PP |
1683 | base_fc = bt_field_borrow_class(base_field); |
1684 | BT_ASSERT(base_fc); | |
e98a2d6e | 1685 | |
864cad70 PP |
1686 | switch (bt_field_class_get_type(base_fc)) { |
1687 | case BT_FIELD_CLASS_TYPE_STRUCTURE: | |
f42867e2 | 1688 | { |
44c440bc | 1689 | BT_ASSERT(index < |
5cd6d0e5 PP |
1690 | bt_field_class_structure_get_member_count( |
1691 | bt_field_borrow_class(base_field))); | |
44c440bc | 1692 | next_field = bt_field_structure_borrow_member_field_by_index( |
e98a2d6e PP |
1693 | base_field, index); |
1694 | break; | |
f42867e2 | 1695 | } |
864cad70 PP |
1696 | case BT_FIELD_CLASS_TYPE_STATIC_ARRAY: |
1697 | case BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY: | |
44c440bc PP |
1698 | BT_ASSERT(index < bt_field_array_get_length(base_field)); |
1699 | next_field = bt_field_array_borrow_element_field_by_index( | |
1700 | base_field, index); | |
e98a2d6e | 1701 | break; |
864cad70 | 1702 | case BT_FIELD_CLASS_TYPE_VARIANT: |
44c440bc PP |
1703 | BT_ASSERT(index == 0); |
1704 | next_field = bt_field_variant_borrow_selected_option_field( | |
1705 | base_field); | |
e98a2d6e PP |
1706 | break; |
1707 | default: | |
0fbb9a9f | 1708 | abort(); |
e98a2d6e PP |
1709 | } |
1710 | ||
44c440bc | 1711 | BT_ASSERT(next_field); |
e98a2d6e PP |
1712 | return next_field; |
1713 | } | |
1714 | ||
c44c3e70 | 1715 | static |
44c440bc PP |
1716 | void update_default_clock(struct bt_notif_iter *notit, uint64_t new_val, |
1717 | uint64_t new_val_size) | |
c44c3e70 | 1718 | { |
44c440bc | 1719 | uint64_t new_val_mask; |
c44c3e70 | 1720 | uint64_t cur_value_masked; |
c44c3e70 | 1721 | |
44c440bc | 1722 | BT_ASSERT(new_val_size > 0); |
c44c3e70 JG |
1723 | |
1724 | /* | |
1725 | * Special case for a 64-bit new value, which is the limit | |
1726 | * of a clock value as of this version: overwrite the | |
1727 | * current value directly. | |
1728 | */ | |
44c440bc PP |
1729 | if (new_val_size == 64) { |
1730 | notit->default_clock_val = new_val; | |
c44c3e70 JG |
1731 | goto end; |
1732 | } | |
1733 | ||
44c440bc PP |
1734 | new_val_mask = (1ULL << new_val_size) - 1; |
1735 | cur_value_masked = notit->default_clock_val & new_val_mask; | |
c44c3e70 | 1736 | |
44c440bc | 1737 | if (new_val < cur_value_masked) { |
c44c3e70 JG |
1738 | /* |
1739 | * It looks like a wrap happened on the number of bits | |
1740 | * of the requested new value. Assume that the clock | |
1741 | * value wrapped only one time. | |
1742 | */ | |
44c440bc | 1743 | notit->default_clock_val += new_val_mask + 1; |
c44c3e70 JG |
1744 | } |
1745 | ||
1746 | /* Clear the low bits of the current clock value. */ | |
44c440bc | 1747 | notit->default_clock_val &= ~new_val_mask; |
c44c3e70 JG |
1748 | |
1749 | /* Set the low bits of the current clock value. */ | |
44c440bc | 1750 | notit->default_clock_val |= new_val; |
d1e46835 | 1751 | |
c44c3e70 | 1752 | end: |
44c440bc PP |
1753 | BT_LOGV("Updated default clock's value from integer field's value: " |
1754 | "value=%" PRIu64, notit->default_clock_val); | |
c44c3e70 JG |
1755 | } |
1756 | ||
1757 | static | |
5cd6d0e5 PP |
1758 | enum bt_bfcr_status bfcr_unsigned_int_cb(uint64_t value, |
1759 | struct ctf_field_class *fc, void *data) | |
c44c3e70 | 1760 | { |
44c440bc | 1761 | struct bt_notif_iter *notit = data; |
5cd6d0e5 | 1762 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
44c440bc | 1763 | struct bt_field *field = NULL; |
5cd6d0e5 | 1764 | struct ctf_field_class_int *int_fc = (void *) fc; |
c44c3e70 | 1765 | |
5cd6d0e5 PP |
1766 | BT_LOGV("Unsigned integer function called from BFCR: " |
1767 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
1768 | "fc-type=%d, fc-in-ir=%d, value=%" PRIu64, |
1769 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
312c056a | 1770 | |
5cd6d0e5 | 1771 | if (likely(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE)) { |
44c440bc | 1772 | goto update_def_clock; |
c44c3e70 JG |
1773 | } |
1774 | ||
5cd6d0e5 PP |
1775 | switch (int_fc->meaning) { |
1776 | case CTF_FIELD_CLASS_MEANING_EVENT_CLASS_ID: | |
44c440bc PP |
1777 | notit->cur_event_class_id = value; |
1778 | break; | |
5cd6d0e5 | 1779 | case CTF_FIELD_CLASS_MEANING_DATA_STREAM_ID: |
44c440bc PP |
1780 | notit->cur_data_stream_id = value; |
1781 | break; | |
5cd6d0e5 | 1782 | case CTF_FIELD_CLASS_MEANING_PACKET_BEGINNING_TIME: |
44c440bc PP |
1783 | notit->snapshots.beginning_clock = value; |
1784 | break; | |
5cd6d0e5 | 1785 | case CTF_FIELD_CLASS_MEANING_PACKET_END_TIME: |
44c440bc PP |
1786 | notit->snapshots.end_clock = value; |
1787 | break; | |
5cd6d0e5 | 1788 | case CTF_FIELD_CLASS_MEANING_STREAM_CLASS_ID: |
44c440bc PP |
1789 | notit->cur_stream_class_id = value; |
1790 | break; | |
5cd6d0e5 | 1791 | case CTF_FIELD_CLASS_MEANING_MAGIC: |
44c440bc PP |
1792 | if (value != 0xc1fc1fc1) { |
1793 | BT_LOGW("Invalid CTF magic number: notit-addr=%p, " | |
1794 | "magic=%" PRIx64, notit, value); | |
5cd6d0e5 | 1795 | status = BT_BFCR_STATUS_ERROR; |
c44c3e70 JG |
1796 | goto end; |
1797 | } | |
fdf0e7a0 | 1798 | |
44c440bc | 1799 | break; |
5cd6d0e5 | 1800 | case CTF_FIELD_CLASS_MEANING_PACKET_COUNTER_SNAPSHOT: |
44c440bc PP |
1801 | notit->snapshots.packets = value; |
1802 | break; | |
5cd6d0e5 | 1803 | case CTF_FIELD_CLASS_MEANING_DISC_EV_REC_COUNTER_SNAPSHOT: |
44c440bc PP |
1804 | notit->snapshots.discarded_events = value; |
1805 | break; | |
5cd6d0e5 | 1806 | case CTF_FIELD_CLASS_MEANING_EXP_PACKET_TOTAL_SIZE: |
44c440bc PP |
1807 | notit->cur_exp_packet_total_size = value; |
1808 | break; | |
5cd6d0e5 | 1809 | case CTF_FIELD_CLASS_MEANING_EXP_PACKET_CONTENT_SIZE: |
44c440bc PP |
1810 | notit->cur_exp_packet_content_size = value; |
1811 | break; | |
1812 | default: | |
1813 | abort(); | |
c44c3e70 JG |
1814 | } |
1815 | ||
44c440bc | 1816 | update_def_clock: |
5cd6d0e5 PP |
1817 | if (unlikely(int_fc->mapped_clock_class)) { |
1818 | update_default_clock(notit, value, int_fc->base.size); | |
44c440bc | 1819 | } |
c44c3e70 | 1820 | |
5cd6d0e5 | 1821 | if (unlikely(int_fc->storing_index >= 0)) { |
44c440bc | 1822 | g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 1823 | (uint64_t) int_fc->storing_index) = value; |
44c440bc | 1824 | } |
e98a2d6e | 1825 | |
5cd6d0e5 | 1826 | if (unlikely(!fc->in_ir)) { |
312c056a | 1827 | goto end; |
e98a2d6e PP |
1828 | } |
1829 | ||
44c440bc PP |
1830 | field = borrow_next_field(notit); |
1831 | BT_ASSERT(field); | |
5cd6d0e5 | 1832 | BT_ASSERT(bt_field_borrow_class(field) == fc->ir_fc); |
864cad70 PP |
1833 | BT_ASSERT(bt_field_get_class_type(field) == BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER || |
1834 | bt_field_get_class_type(field) == BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION); | |
44c440bc | 1835 | bt_field_unsigned_integer_set_value(field, value); |
e98a2d6e | 1836 | stack_top(notit->stack)->index++; |
fdf0e7a0 | 1837 | |
312c056a | 1838 | end: |
e98a2d6e PP |
1839 | return status; |
1840 | } | |
1841 | ||
5f870343 | 1842 | static |
5cd6d0e5 PP |
1843 | enum bt_bfcr_status bfcr_unsigned_int_char_cb(uint64_t value, |
1844 | struct ctf_field_class *fc, void *data) | |
5f870343 | 1845 | { |
44c440bc | 1846 | int ret; |
50842bdc | 1847 | struct bt_notif_iter *notit = data; |
5cd6d0e5 | 1848 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
44c440bc | 1849 | struct bt_field *string_field = NULL; |
5cd6d0e5 | 1850 | struct ctf_field_class_int *int_fc = (void *) fc; |
44c440bc | 1851 | char str[2] = {'\0', '\0'}; |
5f870343 | 1852 | |
5cd6d0e5 PP |
1853 | BT_LOGV("Unsigned integer character function called from BFCR: " |
1854 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
1855 | "fc-type=%d, fc-in-ir=%d, value=%" PRIu64, |
1856 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
5cd6d0e5 PP |
1857 | BT_ASSERT(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE); |
1858 | BT_ASSERT(!int_fc->mapped_clock_class); | |
1859 | BT_ASSERT(int_fc->storing_index < 0); | |
312c056a | 1860 | |
5cd6d0e5 | 1861 | if (unlikely(!fc->in_ir)) { |
44c440bc PP |
1862 | goto end; |
1863 | } | |
5f870343 | 1864 | |
44c440bc | 1865 | if (notit->done_filling_string) { |
5f870343 JG |
1866 | goto end; |
1867 | } | |
1868 | ||
44c440bc PP |
1869 | if (value == 0) { |
1870 | notit->done_filling_string = true; | |
5f870343 JG |
1871 | goto end; |
1872 | } | |
1873 | ||
44c440bc | 1874 | string_field = stack_top(notit->stack)->base; |
864cad70 | 1875 | BT_ASSERT(bt_field_get_class_type(string_field) == BT_FIELD_CLASS_TYPE_STRING); |
44c440bc PP |
1876 | |
1877 | /* Append character */ | |
1878 | str[0] = (char) value; | |
1879 | ret = bt_field_string_append_with_length(string_field, str, 1); | |
1880 | if (ret) { | |
1881 | BT_LOGE("Cannot append character to string field's value: " | |
1882 | "notit-addr=%p, field-addr=%p, ret=%d", | |
1883 | notit, string_field, ret); | |
5cd6d0e5 | 1884 | status = BT_BFCR_STATUS_ERROR; |
44c440bc PP |
1885 | goto end; |
1886 | } | |
312c056a | 1887 | |
5f870343 JG |
1888 | end: |
1889 | return status; | |
1890 | } | |
1891 | ||
1892 | static | |
5cd6d0e5 PP |
1893 | enum bt_bfcr_status bfcr_signed_int_cb(int64_t value, |
1894 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 1895 | { |
5cd6d0e5 | 1896 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
50842bdc | 1897 | struct bt_field *field = NULL; |
50842bdc | 1898 | struct bt_notif_iter *notit = data; |
5cd6d0e5 | 1899 | struct ctf_field_class_int *int_fc = (void *) fc; |
e98a2d6e | 1900 | |
5cd6d0e5 PP |
1901 | BT_LOGV("Signed integer function called from BFCR: " |
1902 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
1903 | "fc-type=%d, fc-in-ir=%d, value=%" PRId64, |
1904 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
5cd6d0e5 | 1905 | BT_ASSERT(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE); |
44c440bc | 1906 | |
5cd6d0e5 | 1907 | if (unlikely(int_fc->storing_index >= 0)) { |
44c440bc | 1908 | g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 1909 | (uint64_t) int_fc->storing_index) = (uint64_t) value; |
44c440bc PP |
1910 | } |
1911 | ||
5cd6d0e5 | 1912 | if (unlikely(!fc->in_ir)) { |
312c056a | 1913 | goto end; |
e98a2d6e PP |
1914 | } |
1915 | ||
44c440bc PP |
1916 | field = borrow_next_field(notit); |
1917 | BT_ASSERT(field); | |
5cd6d0e5 | 1918 | BT_ASSERT(bt_field_borrow_class(field) == fc->ir_fc); |
864cad70 PP |
1919 | BT_ASSERT(bt_field_get_class_type(field) == BT_FIELD_CLASS_TYPE_SIGNED_INTEGER || |
1920 | bt_field_get_class_type(field) == BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION); | |
44c440bc | 1921 | bt_field_signed_integer_set_value(field, value); |
e98a2d6e | 1922 | stack_top(notit->stack)->index++; |
fdf0e7a0 | 1923 | |
312c056a | 1924 | end: |
e98a2d6e PP |
1925 | return status; |
1926 | } | |
1927 | ||
1928 | static | |
5cd6d0e5 PP |
1929 | enum bt_bfcr_status bfcr_floating_point_cb(double value, |
1930 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 1931 | { |
5cd6d0e5 | 1932 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
50842bdc PP |
1933 | struct bt_field *field = NULL; |
1934 | struct bt_notif_iter *notit = data; | |
e98a2d6e | 1935 | |
5cd6d0e5 PP |
1936 | BT_LOGV("Floating point number function called from BFCR: " |
1937 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
1938 | "fc-type=%d, fc-in-ir=%d, value=%f", |
1939 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
5cd6d0e5 | 1940 | BT_ASSERT(fc->in_ir); |
312c056a | 1941 | field = borrow_next_field(notit); |
44c440bc | 1942 | BT_ASSERT(field); |
5cd6d0e5 | 1943 | BT_ASSERT(bt_field_borrow_class(field) == fc->ir_fc); |
864cad70 | 1944 | BT_ASSERT(bt_field_get_class_type(field) == BT_FIELD_CLASS_TYPE_REAL); |
44c440bc | 1945 | bt_field_real_set_value(field, value); |
e98a2d6e | 1946 | stack_top(notit->stack)->index++; |
e98a2d6e PP |
1947 | return status; |
1948 | } | |
1949 | ||
1950 | static | |
5cd6d0e5 PP |
1951 | enum bt_bfcr_status bfcr_string_begin_cb( |
1952 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 1953 | { |
50842bdc PP |
1954 | struct bt_field *field = NULL; |
1955 | struct bt_notif_iter *notit = data; | |
e98a2d6e PP |
1956 | int ret; |
1957 | ||
5cd6d0e5 PP |
1958 | BT_LOGV("String (beginning) function called from BFCR: " |
1959 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
1960 | "fc-type=%d, fc-in-ir=%d", |
1961 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
e98a2d6e | 1962 | |
5cd6d0e5 | 1963 | BT_ASSERT(fc->in_ir); |
44c440bc PP |
1964 | field = borrow_next_field(notit); |
1965 | BT_ASSERT(field); | |
5cd6d0e5 | 1966 | BT_ASSERT(bt_field_borrow_class(field) == fc->ir_fc); |
864cad70 | 1967 | BT_ASSERT(bt_field_get_class_type(field) == BT_FIELD_CLASS_TYPE_STRING); |
312c056a PP |
1968 | ret = bt_field_string_clear(field); |
1969 | BT_ASSERT(ret == 0); | |
1970 | ||
e98a2d6e | 1971 | /* |
5cd6d0e5 PP |
1972 | * Push on stack. Not a compound class per se, but we know that |
1973 | * only bfcr_string_cb() may be called between this call and a | |
1974 | * subsequent call to bfcr_string_end_cb(). | |
e98a2d6e | 1975 | */ |
44c440bc | 1976 | stack_push(notit->stack, field); |
5cd6d0e5 | 1977 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
1978 | } |
1979 | ||
1980 | static | |
5cd6d0e5 PP |
1981 | enum bt_bfcr_status bfcr_string_cb(const char *value, |
1982 | size_t len, struct ctf_field_class *fc, void *data) | |
e98a2d6e | 1983 | { |
5cd6d0e5 | 1984 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
50842bdc PP |
1985 | struct bt_field *field = NULL; |
1986 | struct bt_notif_iter *notit = data; | |
e98a2d6e PP |
1987 | int ret; |
1988 | ||
5cd6d0e5 PP |
1989 | BT_LOGV("String (substring) function called from BFCR: " |
1990 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
1991 | "fc-type=%d, fc-in-ir=%d, string-length=%zu", |
1992 | notit, notit->bfcr, fc, fc->type, fc->in_ir, | |
fdf0e7a0 | 1993 | len); |
5cd6d0e5 | 1994 | BT_ASSERT(fc->in_ir); |
e98a2d6e | 1995 | field = stack_top(notit->stack)->base; |
f6ccaed9 | 1996 | BT_ASSERT(field); |
e98a2d6e | 1997 | |
312c056a | 1998 | /* Append current substring */ |
44c440bc | 1999 | ret = bt_field_string_append_with_length(field, value, len); |
e98a2d6e | 2000 | if (ret) { |
fdf0e7a0 PP |
2001 | BT_LOGE("Cannot append substring to string field's value: " |
2002 | "notit-addr=%p, field-addr=%p, string-length=%zu, " | |
2003 | "ret=%d", notit, field, len, ret); | |
5cd6d0e5 | 2004 | status = BT_BFCR_STATUS_ERROR; |
e98a2d6e PP |
2005 | goto end; |
2006 | } | |
2007 | ||
2008 | end: | |
2009 | return status; | |
2010 | } | |
2011 | ||
2012 | static | |
5cd6d0e5 PP |
2013 | enum bt_bfcr_status bfcr_string_end_cb( |
2014 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2015 | { |
50842bdc | 2016 | struct bt_notif_iter *notit = data; |
e98a2d6e | 2017 | |
5cd6d0e5 PP |
2018 | BT_LOGV("String (end) function called from BFCR: " |
2019 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2020 | "fc-type=%d, fc-in-ir=%d", |
2021 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
5cd6d0e5 | 2022 | BT_ASSERT(fc->in_ir); |
fdf0e7a0 | 2023 | |
e98a2d6e PP |
2024 | /* Pop string field */ |
2025 | stack_pop(notit->stack); | |
2026 | ||
2027 | /* Go to next field */ | |
2028 | stack_top(notit->stack)->index++; | |
5cd6d0e5 | 2029 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2030 | } |
2031 | ||
5cd6d0e5 PP |
2032 | enum bt_bfcr_status bfcr_compound_begin_cb( |
2033 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2034 | { |
50842bdc PP |
2035 | struct bt_notif_iter *notit = data; |
2036 | struct bt_field *field; | |
e98a2d6e | 2037 | |
5cd6d0e5 PP |
2038 | BT_LOGV("Compound (beginning) function called from BFCR: " |
2039 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2040 | "fc-type=%d, fc-in-ir=%d", |
2041 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
44c440bc | 2042 | |
5cd6d0e5 | 2043 | if (!fc->in_ir) { |
44c440bc PP |
2044 | goto end; |
2045 | } | |
fdf0e7a0 | 2046 | |
312c056a | 2047 | /* Borrow field */ |
e98a2d6e | 2048 | if (stack_empty(notit->stack)) { |
312c056a PP |
2049 | /* Root: already set by read_dscope_begin_state() */ |
2050 | field = notit->cur_dscope_field; | |
e98a2d6e | 2051 | } else { |
312c056a | 2052 | field = borrow_next_field(notit); |
44c440bc | 2053 | BT_ASSERT(field); |
e98a2d6e PP |
2054 | } |
2055 | ||
2056 | /* Push field */ | |
f6ccaed9 | 2057 | BT_ASSERT(field); |
5cd6d0e5 | 2058 | BT_ASSERT(bt_field_borrow_class(field) == fc->ir_fc); |
44c440bc PP |
2059 | stack_push(notit->stack, field); |
2060 | ||
2061 | /* | |
5cd6d0e5 | 2062 | * Change BFCR "unsigned int" callback if it's a text |
44c440bc PP |
2063 | * array/sequence. |
2064 | */ | |
864cad70 PP |
2065 | if (fc->type == CTF_FIELD_CLASS_TYPE_ARRAY || |
2066 | fc->type == CTF_FIELD_CLASS_TYPE_SEQUENCE) { | |
5cd6d0e5 | 2067 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
44c440bc | 2068 | |
5cd6d0e5 | 2069 | if (array_fc->is_text) { |
44c440bc PP |
2070 | int ret; |
2071 | ||
864cad70 PP |
2072 | BT_ASSERT(bt_field_get_class_type(field) == |
2073 | BT_FIELD_CLASS_TYPE_STRING); | |
44c440bc PP |
2074 | notit->done_filling_string = false; |
2075 | ret = bt_field_string_clear(field); | |
2076 | BT_ASSERT(ret == 0); | |
5cd6d0e5 PP |
2077 | bt_bfcr_set_unsigned_int_cb(notit->bfcr, |
2078 | bfcr_unsigned_int_char_cb); | |
44c440bc | 2079 | } |
e98a2d6e PP |
2080 | } |
2081 | ||
2082 | end: | |
5cd6d0e5 | 2083 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2084 | } |
2085 | ||
5cd6d0e5 PP |
2086 | enum bt_bfcr_status bfcr_compound_end_cb( |
2087 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2088 | { |
50842bdc | 2089 | struct bt_notif_iter *notit = data; |
e98a2d6e | 2090 | |
5cd6d0e5 PP |
2091 | BT_LOGV("Compound (end) function called from BFCR: " |
2092 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2093 | "fc-type=%d, fc-in-ir=%d", |
2094 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
e98a2d6e | 2095 | |
5cd6d0e5 | 2096 | if (!fc->in_ir) { |
e98a2d6e PP |
2097 | goto end; |
2098 | } | |
2099 | ||
44c440bc | 2100 | BT_ASSERT(!stack_empty(notit->stack)); |
5cd6d0e5 PP |
2101 | BT_ASSERT(bt_field_borrow_class(stack_top(notit->stack)->base) == |
2102 | fc->ir_fc); | |
e98a2d6e | 2103 | |
44c440bc | 2104 | /* |
5cd6d0e5 | 2105 | * Reset BFCR "unsigned int" callback if it's a text |
44c440bc PP |
2106 | * array/sequence. |
2107 | */ | |
864cad70 PP |
2108 | if (fc->type == CTF_FIELD_CLASS_TYPE_ARRAY || |
2109 | fc->type == CTF_FIELD_CLASS_TYPE_SEQUENCE) { | |
5cd6d0e5 | 2110 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
44c440bc | 2111 | |
5cd6d0e5 | 2112 | if (array_fc->is_text) { |
864cad70 | 2113 | BT_ASSERT(bt_field_get_class_type( |
44c440bc | 2114 | stack_top(notit->stack)->base) == |
864cad70 | 2115 | BT_FIELD_CLASS_TYPE_STRING); |
5cd6d0e5 PP |
2116 | bt_bfcr_set_unsigned_int_cb(notit->bfcr, |
2117 | bfcr_unsigned_int_cb); | |
e98a2d6e | 2118 | } |
44c440bc | 2119 | } |
e98a2d6e | 2120 | |
44c440bc PP |
2121 | /* Pop stack */ |
2122 | stack_pop(notit->stack); | |
e98a2d6e | 2123 | |
44c440bc PP |
2124 | /* If the stack is not empty, increment the base's index */ |
2125 | if (!stack_empty(notit->stack)) { | |
2126 | stack_top(notit->stack)->index++; | |
e98a2d6e PP |
2127 | } |
2128 | ||
2129 | end: | |
5cd6d0e5 | 2130 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2131 | } |
2132 | ||
2133 | static | |
5cd6d0e5 | 2134 | int64_t bfcr_get_sequence_length_cb(struct ctf_field_class *fc, void *data) |
e98a2d6e | 2135 | { |
50842bdc | 2136 | struct bt_field *seq_field; |
50842bdc | 2137 | struct bt_notif_iter *notit = data; |
5cd6d0e5 | 2138 | struct ctf_field_class_sequence *seq_fc = (void *) fc; |
44c440bc PP |
2139 | int64_t length = -1; |
2140 | int ret; | |
e98a2d6e | 2141 | |
44c440bc | 2142 | length = (uint64_t) g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 2143 | seq_fc->stored_length_index); |
fdf0e7a0 | 2144 | seq_field = stack_top(notit->stack)->base; |
44c440bc PP |
2145 | BT_ASSERT(seq_field); |
2146 | ret = bt_field_dynamic_array_set_length(seq_field, (uint64_t) length); | |
2147 | if (ret) { | |
2148 | BT_LOGE("Cannot set dynamic array field's length field: " | |
2149 | "notit-addr=%p, field-addr=%p, " | |
2150 | "length=%" PRIu64, notit, seq_field, length); | |
2cf1d51e | 2151 | } |
fdf0e7a0 | 2152 | |
44c440bc | 2153 | return length; |
e98a2d6e PP |
2154 | } |
2155 | ||
2156 | static | |
5cd6d0e5 PP |
2157 | struct ctf_field_class *bfcr_borrow_variant_selected_field_class_cb( |
2158 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2159 | { |
312c056a | 2160 | int ret; |
44c440bc PP |
2161 | uint64_t i; |
2162 | int64_t option_index = -1; | |
50842bdc | 2163 | struct bt_notif_iter *notit = data; |
5cd6d0e5 PP |
2164 | struct ctf_field_class_variant *var_fc = (void *) fc; |
2165 | struct ctf_named_field_class *selected_option = NULL; | |
2166 | struct ctf_field_class *ret_fc = NULL; | |
44c440bc PP |
2167 | union { |
2168 | uint64_t u; | |
2169 | int64_t i; | |
2170 | } tag; | |
2171 | ||
2172 | /* Get variant's tag */ | |
2173 | tag.u = g_array_index(notit->stored_values, uint64_t, | |
5cd6d0e5 | 2174 | var_fc->stored_tag_index); |
e98a2d6e PP |
2175 | |
2176 | /* | |
44c440bc | 2177 | * Check each range to find the selected option's index. |
e98a2d6e | 2178 | */ |
5cd6d0e5 PP |
2179 | if (var_fc->tag_fc->base.is_signed) { |
2180 | for (i = 0; i < var_fc->ranges->len; i++) { | |
2181 | struct ctf_field_class_variant_range *range = | |
2182 | ctf_field_class_variant_borrow_range_by_index( | |
2183 | var_fc, i); | |
44c440bc PP |
2184 | |
2185 | if (tag.i >= range->range.lower.i && | |
2186 | tag.i <= range->range.upper.i) { | |
2187 | option_index = (int64_t) range->option_index; | |
2188 | break; | |
2189 | } | |
2190 | } | |
312c056a | 2191 | } else { |
5cd6d0e5 PP |
2192 | for (i = 0; i < var_fc->ranges->len; i++) { |
2193 | struct ctf_field_class_variant_range *range = | |
2194 | ctf_field_class_variant_borrow_range_by_index( | |
2195 | var_fc, i); | |
44c440bc PP |
2196 | |
2197 | if (tag.u >= range->range.lower.u && | |
2198 | tag.u <= range->range.upper.u) { | |
2199 | option_index = (int64_t) range->option_index; | |
2200 | break; | |
2201 | } | |
2202 | } | |
312c056a PP |
2203 | } |
2204 | ||
44c440bc | 2205 | if (option_index < 0) { |
5cd6d0e5 PP |
2206 | BT_LOGW("Cannot find variant field class's option: " |
2207 | "notit-addr=%p, var-fc-addr=%p, u-tag=%" PRIu64 ", " | |
2208 | "i-tag=%" PRId64, notit, var_fc, tag.u, tag.i); | |
e98a2d6e PP |
2209 | goto end; |
2210 | } | |
2211 | ||
5cd6d0e5 PP |
2212 | selected_option = ctf_field_class_variant_borrow_option_by_index( |
2213 | var_fc, (uint64_t) option_index); | |
e98a2d6e | 2214 | |
5cd6d0e5 | 2215 | if (selected_option->fc->in_ir) { |
44c440bc | 2216 | struct bt_field *var_field = stack_top(notit->stack)->base; |
1556a1af | 2217 | |
44c440bc PP |
2218 | ret = bt_field_variant_select_option_field(var_field, |
2219 | option_index); | |
e22b45d0 | 2220 | if (ret) { |
44c440bc PP |
2221 | BT_LOGW("Cannot select variant field's option field: " |
2222 | "notit-addr=%p, var-field-addr=%p, " | |
2223 | "opt-index=%" PRId64, notit, var_field, | |
2224 | option_index); | |
1556a1af JG |
2225 | goto end; |
2226 | } | |
af87daef PP |
2227 | } |
2228 | ||
5cd6d0e5 | 2229 | ret_fc = selected_option->fc; |
e22b45d0 | 2230 | |
af87daef | 2231 | end: |
5cd6d0e5 | 2232 | return ret_fc; |
44c440bc PP |
2233 | } |
2234 | ||
2235 | static | |
2236 | void set_event_default_clock_value(struct bt_notif_iter *notit) | |
2237 | { | |
2238 | struct bt_event *event = bt_notification_event_borrow_event( | |
2239 | notit->event_notif); | |
2240 | struct bt_stream_class *sc = notit->meta.sc->ir_sc; | |
2241 | ||
2242 | BT_ASSERT(event); | |
2243 | ||
2244 | if (bt_stream_class_borrow_default_clock_class(sc)) { | |
2245 | int ret = bt_event_set_default_clock_value(event, | |
2246 | notit->default_clock_val); | |
2247 | ||
2248 | BT_ASSERT(ret == 0); | |
2249 | } | |
af87daef PP |
2250 | } |
2251 | ||
f42867e2 PP |
2252 | static |
2253 | void notify_new_stream(struct bt_notif_iter *notit, | |
2254 | struct bt_notification **notification) | |
2255 | { | |
312c056a | 2256 | enum bt_notif_iter_status status; |
f42867e2 | 2257 | struct bt_notification *ret = NULL; |
f42867e2 | 2258 | |
312c056a PP |
2259 | status = set_current_stream(notit); |
2260 | if (status != BT_NOTIF_ITER_STATUS_OK) { | |
65300d60 | 2261 | BT_OBJECT_PUT_REF_AND_RESET(ret); |
f42867e2 PP |
2262 | goto end; |
2263 | } | |
2264 | ||
2265 | BT_ASSERT(notit->stream); | |
f0010051 PP |
2266 | BT_ASSERT(notit->notif_iter); |
2267 | ret = bt_notification_stream_begin_create(notit->notif_iter, | |
2268 | notit->stream); | |
f42867e2 PP |
2269 | if (!ret) { |
2270 | BT_LOGE("Cannot create stream beginning notification: " | |
2271 | "notit-addr=%p, stream-addr=%p", | |
2272 | notit, notit->stream); | |
2273 | return; | |
2274 | } | |
2275 | ||
2276 | end: | |
2277 | *notification = ret; | |
2278 | } | |
2279 | ||
2280 | static | |
2281 | void notify_end_of_stream(struct bt_notif_iter *notit, | |
2282 | struct bt_notification **notification) | |
2283 | { | |
2284 | struct bt_notification *ret; | |
2285 | ||
2286 | if (!notit->stream) { | |
2287 | BT_LOGE("Cannot create stream for stream notification: " | |
2288 | "notit-addr=%p", notit); | |
2289 | return; | |
2290 | } | |
2291 | ||
f0010051 PP |
2292 | BT_ASSERT(notit->notif_iter); |
2293 | ret = bt_notification_stream_end_create(notit->notif_iter, | |
2294 | notit->stream); | |
f42867e2 PP |
2295 | if (!ret) { |
2296 | BT_LOGE("Cannot create stream beginning notification: " | |
2297 | "notit-addr=%p, stream-addr=%p", | |
2298 | notit, notit->stream); | |
2299 | return; | |
2300 | } | |
2301 | *notification = ret; | |
2302 | } | |
2303 | ||
78586d8a | 2304 | static |
50842bdc | 2305 | void notify_new_packet(struct bt_notif_iter *notit, |
78586d8a | 2306 | struct bt_notification **notification) |
e98a2d6e | 2307 | { |
312c056a PP |
2308 | int ret; |
2309 | enum bt_notif_iter_status status; | |
2310 | struct bt_notification *notif = NULL; | |
44c440bc | 2311 | struct bt_stream_class *sc; |
e98a2d6e | 2312 | |
312c056a PP |
2313 | status = set_current_packet(notit); |
2314 | if (status != BT_NOTIF_ITER_STATUS_OK) { | |
2315 | goto end; | |
e98a2d6e PP |
2316 | } |
2317 | ||
312c056a | 2318 | BT_ASSERT(notit->packet); |
44c440bc PP |
2319 | sc = notit->meta.sc->ir_sc; |
2320 | BT_ASSERT(sc); | |
2321 | ||
2322 | if (bt_stream_class_packets_have_discarded_event_counter_snapshot(sc)) { | |
2323 | BT_ASSERT(notit->snapshots.discarded_events != UINT64_C(-1)); | |
2324 | ret = bt_packet_set_discarded_event_counter_snapshot( | |
2325 | notit->packet, notit->snapshots.discarded_events); | |
2326 | BT_ASSERT(ret == 0); | |
2327 | } | |
2328 | ||
2329 | if (bt_stream_class_packets_have_packet_counter_snapshot(sc)) { | |
2330 | BT_ASSERT(notit->snapshots.packets != UINT64_C(-1)); | |
2331 | ret = bt_packet_set_packet_counter_snapshot( | |
2332 | notit->packet, notit->snapshots.packets); | |
2333 | BT_ASSERT(ret == 0); | |
2334 | } | |
2335 | ||
2336 | if (bt_stream_class_packets_have_default_beginning_clock_value(sc)) { | |
2337 | BT_ASSERT(notit->snapshots.beginning_clock != UINT64_C(-1)); | |
2338 | ret = bt_packet_set_default_beginning_clock_value( | |
2339 | notit->packet, notit->snapshots.beginning_clock); | |
2340 | BT_ASSERT(ret == 0); | |
2341 | } | |
2342 | ||
2343 | if (bt_stream_class_packets_have_default_end_clock_value(sc)) { | |
2344 | BT_ASSERT(notit->snapshots.end_clock != UINT64_C(-1)); | |
2345 | ret = bt_packet_set_default_end_clock_value( | |
2346 | notit->packet, notit->snapshots.end_clock); | |
2347 | BT_ASSERT(ret == 0); | |
2348 | } | |
312c056a PP |
2349 | |
2350 | if (notit->packet_header_field) { | |
44c440bc | 2351 | ret = bt_packet_move_header_field(notit->packet, |
312c056a PP |
2352 | notit->packet_header_field); |
2353 | if (ret) { | |
2354 | goto end; | |
2355 | } | |
2356 | ||
2357 | notit->packet_header_field = NULL; | |
2358 | ||
2359 | /* | |
2360 | * At this point notit->dscopes.trace_packet_header has | |
2361 | * the same value as the packet header field within | |
2362 | * notit->packet. | |
2363 | */ | |
44c440bc | 2364 | BT_ASSERT(bt_packet_borrow_header_field(notit->packet) == |
312c056a PP |
2365 | notit->dscopes.trace_packet_header); |
2366 | } | |
2367 | ||
2368 | if (notit->packet_context_field) { | |
44c440bc | 2369 | ret = bt_packet_move_context_field(notit->packet, |
312c056a PP |
2370 | notit->packet_context_field); |
2371 | if (ret) { | |
2372 | goto end; | |
2373 | } | |
2374 | ||
2375 | notit->packet_context_field = NULL; | |
2376 | ||
2377 | /* | |
2378 | * At this point notit->dscopes.trace_packet_header has | |
2379 | * the same value as the packet header field within | |
2380 | * notit->packet. | |
2381 | */ | |
44c440bc | 2382 | BT_ASSERT(bt_packet_borrow_context_field(notit->packet) == |
312c056a PP |
2383 | notit->dscopes.stream_packet_context); |
2384 | } | |
2385 | ||
f0010051 PP |
2386 | BT_ASSERT(notit->notif_iter); |
2387 | notif = bt_notification_packet_begin_create(notit->notif_iter, | |
5c563278 | 2388 | notit->packet); |
312c056a | 2389 | if (!notif) { |
fdf0e7a0 PP |
2390 | BT_LOGE("Cannot create packet beginning notification: " |
2391 | "notit-addr=%p, packet-addr=%p", | |
2392 | notit, notit->packet); | |
e22b45d0 | 2393 | goto end; |
78586d8a | 2394 | } |
312c056a | 2395 | |
312c056a | 2396 | *notification = notif; |
e22b45d0 PP |
2397 | |
2398 | end: | |
2399 | return; | |
e98a2d6e PP |
2400 | } |
2401 | ||
78586d8a | 2402 | static |
50842bdc | 2403 | void notify_end_of_packet(struct bt_notif_iter *notit, |
78586d8a | 2404 | struct bt_notification **notification) |
e98a2d6e | 2405 | { |
312c056a | 2406 | struct bt_notification *notif; |
e98a2d6e | 2407 | |
e98a2d6e | 2408 | if (!notit->packet) { |
78586d8a | 2409 | return; |
e98a2d6e PP |
2410 | } |
2411 | ||
44c440bc PP |
2412 | /* Update default clock from packet's end time */ |
2413 | if (notit->snapshots.end_clock != UINT64_C(-1)) { | |
2414 | notit->default_clock_val = notit->snapshots.end_clock; | |
2415 | } | |
2416 | ||
f0010051 PP |
2417 | BT_ASSERT(notit->notif_iter); |
2418 | notif = bt_notification_packet_end_create(notit->notif_iter, | |
2419 | notit->packet); | |
312c056a | 2420 | if (!notif) { |
fdf0e7a0 PP |
2421 | BT_LOGE("Cannot create packet end notification: " |
2422 | "notit-addr=%p, packet-addr=%p", | |
2423 | notit, notit->packet); | |
78586d8a | 2424 | return; |
ccf82993 | 2425 | |
78586d8a | 2426 | } |
e98a2d6e | 2427 | |
65300d60 | 2428 | BT_OBJECT_PUT_REF_AND_RESET(notit->packet); |
312c056a | 2429 | *notification = notif; |
e98a2d6e PP |
2430 | } |
2431 | ||
c44c3e70 | 2432 | BT_HIDDEN |
44c440bc | 2433 | struct bt_notif_iter *bt_notif_iter_create(struct ctf_trace_class *tc, |
e98a2d6e | 2434 | size_t max_request_sz, |
50842bdc | 2435 | struct bt_notif_iter_medium_ops medops, void *data) |
e98a2d6e | 2436 | { |
50842bdc | 2437 | struct bt_notif_iter *notit = NULL; |
5cd6d0e5 PP |
2438 | struct bt_bfcr_cbs cbs = { |
2439 | .classes = { | |
2440 | .signed_int = bfcr_signed_int_cb, | |
2441 | .unsigned_int = bfcr_unsigned_int_cb, | |
2442 | .floating_point = bfcr_floating_point_cb, | |
2443 | .string_begin = bfcr_string_begin_cb, | |
2444 | .string = bfcr_string_cb, | |
2445 | .string_end = bfcr_string_end_cb, | |
2446 | .compound_begin = bfcr_compound_begin_cb, | |
2447 | .compound_end = bfcr_compound_end_cb, | |
e98a2d6e PP |
2448 | }, |
2449 | .query = { | |
5cd6d0e5 PP |
2450 | .get_sequence_length = bfcr_get_sequence_length_cb, |
2451 | .borrow_variant_selected_field_class = bfcr_borrow_variant_selected_field_class_cb, | |
e98a2d6e PP |
2452 | }, |
2453 | }; | |
2454 | ||
44c440bc | 2455 | BT_ASSERT(tc); |
f6ccaed9 | 2456 | BT_ASSERT(medops.request_bytes); |
312c056a | 2457 | BT_ASSERT(medops.borrow_stream); |
fdf0e7a0 PP |
2458 | BT_LOGD("Creating CTF plugin notification iterator: " |
2459 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
44c440bc | 2460 | "data=%p", tc, tc->name->str, max_request_sz, data); |
50842bdc | 2461 | notit = g_new0(struct bt_notif_iter, 1); |
e98a2d6e | 2462 | if (!notit) { |
fdf0e7a0 | 2463 | BT_LOGE_STR("Failed to allocate one CTF plugin notification iterator."); |
e98a2d6e PP |
2464 | goto end; |
2465 | } | |
44c440bc | 2466 | notit->meta.tc = tc; |
e98a2d6e PP |
2467 | notit->medium.medops = medops; |
2468 | notit->medium.max_request_sz = max_request_sz; | |
2469 | notit->medium.data = data; | |
e98a2d6e | 2470 | notit->stack = stack_new(notit); |
44c440bc PP |
2471 | notit->stored_values = g_array_new(FALSE, TRUE, sizeof(uint64_t)); |
2472 | g_array_set_size(notit->stored_values, tc->stored_value_count); | |
2473 | ||
e98a2d6e | 2474 | if (!notit->stack) { |
fdf0e7a0 | 2475 | BT_LOGE_STR("Failed to create field stack."); |
c44c3e70 | 2476 | goto error; |
e98a2d6e PP |
2477 | } |
2478 | ||
5cd6d0e5 PP |
2479 | notit->bfcr = bt_bfcr_create(cbs, notit); |
2480 | if (!notit->bfcr) { | |
2481 | BT_LOGE_STR("Failed to create binary class reader (BFCR)."); | |
c44c3e70 | 2482 | goto error; |
e98a2d6e PP |
2483 | } |
2484 | ||
50842bdc | 2485 | bt_notif_iter_reset(notit); |
fdf0e7a0 PP |
2486 | BT_LOGD("Created CTF plugin notification iterator: " |
2487 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
2488 | "data=%p, notit-addr=%p", | |
44c440bc | 2489 | tc, tc->name->str, max_request_sz, data, |
fdf0e7a0 | 2490 | notit); |
9e0c8dbb | 2491 | notit->cur_packet_offset = 0; |
fdf0e7a0 | 2492 | |
e98a2d6e PP |
2493 | end: |
2494 | return notit; | |
fdf0e7a0 | 2495 | |
c44c3e70 | 2496 | error: |
50842bdc | 2497 | bt_notif_iter_destroy(notit); |
c44c3e70 JG |
2498 | notit = NULL; |
2499 | goto end; | |
e98a2d6e PP |
2500 | } |
2501 | ||
50842bdc | 2502 | void bt_notif_iter_destroy(struct bt_notif_iter *notit) |
e98a2d6e | 2503 | { |
65300d60 PP |
2504 | BT_OBJECT_PUT_REF_AND_RESET(notit->packet); |
2505 | BT_OBJECT_PUT_REF_AND_RESET(notit->stream); | |
312c056a | 2506 | release_all_dscopes(notit); |
e98a2d6e | 2507 | |
fdf0e7a0 PP |
2508 | BT_LOGD("Destroying CTF plugin notification iterator: addr=%p", notit); |
2509 | ||
e98a2d6e | 2510 | if (notit->stack) { |
fdf0e7a0 | 2511 | BT_LOGD_STR("Destroying field stack."); |
e98a2d6e PP |
2512 | stack_destroy(notit->stack); |
2513 | } | |
2514 | ||
5cd6d0e5 PP |
2515 | if (notit->bfcr) { |
2516 | BT_LOGD("Destroying BFCR: bfcr-addr=%p", notit->bfcr); | |
2517 | bt_bfcr_destroy(notit->bfcr); | |
e98a2d6e PP |
2518 | } |
2519 | ||
44c440bc PP |
2520 | if (notit->stored_values) { |
2521 | g_array_free(notit->stored_values, TRUE); | |
5f870343 | 2522 | } |
fdf0e7a0 | 2523 | |
e98a2d6e PP |
2524 | g_free(notit); |
2525 | } | |
2526 | ||
50842bdc PP |
2527 | enum bt_notif_iter_status bt_notif_iter_get_next_notification( |
2528 | struct bt_notif_iter *notit, | |
f0010051 | 2529 | struct bt_private_connection_private_notification_iterator *notif_iter, |
78586d8a | 2530 | struct bt_notification **notification) |
e98a2d6e | 2531 | { |
50842bdc | 2532 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e | 2533 | |
f6ccaed9 PP |
2534 | BT_ASSERT(notit); |
2535 | BT_ASSERT(notification); | |
e98a2d6e | 2536 | |
5c563278 PP |
2537 | if (notit->state == STATE_DONE) { |
2538 | status = BT_NOTIF_ITER_STATUS_EOF; | |
2539 | goto end; | |
2540 | } | |
2541 | ||
f0010051 | 2542 | notit->notif_iter = notif_iter; |
f42867e2 | 2543 | |
e22b45d0 | 2544 | BT_LOGV("Getting next notification: notit-addr=%p", notit); |
fdf0e7a0 | 2545 | |
e98a2d6e PP |
2546 | while (true) { |
2547 | status = handle_state(notit); | |
50842bdc PP |
2548 | if (status == BT_NOTIF_ITER_STATUS_AGAIN) { |
2549 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_AGAIN."); | |
7cdc2bab MD |
2550 | goto end; |
2551 | } | |
312c056a | 2552 | |
50842bdc PP |
2553 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
2554 | if (status == BT_NOTIF_ITER_STATUS_EOF) { | |
f42867e2 PP |
2555 | enum state next_state = notit->state; |
2556 | ||
50842bdc | 2557 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_EOF."); |
f42867e2 PP |
2558 | |
2559 | if (notit->packet) { | |
312c056a PP |
2560 | notify_end_of_packet(notit, |
2561 | notification); | |
f42867e2 | 2562 | } else { |
312c056a PP |
2563 | notify_end_of_stream(notit, |
2564 | notification); | |
f42867e2 PP |
2565 | next_state = STATE_DONE; |
2566 | } | |
2567 | ||
2568 | if (!*notification) { | |
2569 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
2570 | goto end; | |
2571 | } | |
2572 | ||
2573 | status = BT_NOTIF_ITER_STATUS_OK; | |
2574 | notit->state = next_state; | |
e98a2d6e | 2575 | } else { |
fdf0e7a0 PP |
2576 | BT_LOGW("Cannot handle state: " |
2577 | "notit-addr=%p, state=%s", | |
2578 | notit, state_string(notit->state)); | |
e98a2d6e | 2579 | } |
312c056a | 2580 | |
e98a2d6e PP |
2581 | goto end; |
2582 | } | |
2583 | ||
2584 | switch (notit->state) { | |
f42867e2 PP |
2585 | case STATE_EMIT_NOTIF_NEW_STREAM: |
2586 | /* notify_new_stream() logs errors */ | |
2587 | notify_new_stream(notit, notification); | |
44c440bc | 2588 | |
f42867e2 PP |
2589 | if (!*notification) { |
2590 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
2591 | } | |
44c440bc | 2592 | |
f42867e2 PP |
2593 | notit->stream_begin_emitted = true; |
2594 | goto end; | |
e98a2d6e | 2595 | case STATE_EMIT_NOTIF_NEW_PACKET: |
fdf0e7a0 | 2596 | /* notify_new_packet() logs errors */ |
e98a2d6e | 2597 | notify_new_packet(notit, notification); |
44c440bc | 2598 | |
e98a2d6e | 2599 | if (!*notification) { |
50842bdc | 2600 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e | 2601 | } |
312c056a | 2602 | |
e98a2d6e PP |
2603 | goto end; |
2604 | case STATE_EMIT_NOTIF_EVENT: | |
312c056a | 2605 | BT_ASSERT(notit->event_notif); |
44c440bc | 2606 | set_event_default_clock_value(notit); |
d4393e08 PP |
2607 | *notification = notit->event_notif; |
2608 | notit->event_notif = NULL; | |
e98a2d6e PP |
2609 | goto end; |
2610 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
fdf0e7a0 | 2611 | /* notify_end_of_packet() logs errors */ |
e98a2d6e | 2612 | notify_end_of_packet(notit, notification); |
44c440bc | 2613 | |
e98a2d6e | 2614 | if (!*notification) { |
50842bdc | 2615 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e | 2616 | } |
312c056a | 2617 | |
e98a2d6e PP |
2618 | goto end; |
2619 | default: | |
2620 | /* Non-emitting state: continue */ | |
2621 | break; | |
2622 | } | |
2623 | } | |
2624 | ||
2625 | end: | |
2626 | return status; | |
2627 | } | |
87187cbf PP |
2628 | |
2629 | BT_HIDDEN | |
312c056a | 2630 | enum bt_notif_iter_status bt_notif_iter_borrow_packet_header_context_fields( |
50842bdc PP |
2631 | struct bt_notif_iter *notit, |
2632 | struct bt_field **packet_header_field, | |
2633 | struct bt_field **packet_context_field) | |
87187cbf | 2634 | { |
9e0c8dbb | 2635 | int ret; |
50842bdc | 2636 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
87187cbf | 2637 | |
f6ccaed9 | 2638 | BT_ASSERT(notit); |
87187cbf PP |
2639 | |
2640 | if (notit->state == STATE_EMIT_NOTIF_NEW_PACKET) { | |
2641 | /* We're already there */ | |
2642 | goto set_fields; | |
2643 | } | |
2644 | ||
2645 | while (true) { | |
2646 | status = handle_state(notit); | |
50842bdc PP |
2647 | if (status == BT_NOTIF_ITER_STATUS_AGAIN) { |
2648 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_AGAIN."); | |
87187cbf PP |
2649 | goto end; |
2650 | } | |
50842bdc PP |
2651 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
2652 | if (status == BT_NOTIF_ITER_STATUS_EOF) { | |
2653 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_EOF."); | |
87187cbf | 2654 | } else { |
fdf0e7a0 PP |
2655 | BT_LOGW("Cannot handle state: " |
2656 | "notit-addr=%p, state=%s", | |
2657 | notit, state_string(notit->state)); | |
87187cbf PP |
2658 | } |
2659 | goto end; | |
2660 | } | |
2661 | ||
2662 | switch (notit->state) { | |
2663 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
2664 | /* | |
2665 | * Packet header and context fields are | |
2666 | * potentially decoded (or they don't exist). | |
2667 | */ | |
2668 | goto set_fields; | |
2669 | case STATE_INIT: | |
f42867e2 | 2670 | case STATE_EMIT_NOTIF_NEW_STREAM: |
87187cbf PP |
2671 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: |
2672 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
2673 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
2674 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
2675 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
2676 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
2677 | /* Non-emitting state: continue */ | |
2678 | break; | |
2679 | default: | |
2680 | /* | |
2681 | * We should never get past the | |
2682 | * STATE_EMIT_NOTIF_NEW_PACKET state. | |
2683 | */ | |
fdf0e7a0 PP |
2684 | BT_LOGF("Unexpected state: notit-addr=%p, state=%s", |
2685 | notit, state_string(notit->state)); | |
0fbb9a9f | 2686 | abort(); |
87187cbf PP |
2687 | } |
2688 | } | |
2689 | ||
2690 | set_fields: | |
312c056a PP |
2691 | ret = set_current_packet_content_sizes(notit); |
2692 | if (ret) { | |
2693 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
2694 | goto end; | |
2695 | } | |
2696 | ||
87187cbf | 2697 | if (packet_header_field) { |
312c056a | 2698 | *packet_header_field = notit->dscopes.trace_packet_header; |
87187cbf PP |
2699 | } |
2700 | ||
2701 | if (packet_context_field) { | |
312c056a | 2702 | *packet_context_field = notit->dscopes.stream_packet_context; |
87187cbf PP |
2703 | } |
2704 | ||
2705 | end: | |
2706 | return status; | |
2707 | } | |
6de92955 PP |
2708 | |
2709 | BT_HIDDEN | |
50842bdc | 2710 | void bt_notif_iter_set_medops_data(struct bt_notif_iter *notit, |
6de92955 PP |
2711 | void *medops_data) |
2712 | { | |
f6ccaed9 | 2713 | BT_ASSERT(notit); |
6de92955 PP |
2714 | notit->medium.data = medops_data; |
2715 | } | |
9e0c8dbb JG |
2716 | |
2717 | BT_HIDDEN | |
50842bdc PP |
2718 | enum bt_notif_iter_status bt_notif_iter_seek( |
2719 | struct bt_notif_iter *notit, off_t offset) | |
9e0c8dbb | 2720 | { |
50842bdc PP |
2721 | enum bt_notif_iter_status ret = BT_NOTIF_ITER_STATUS_OK; |
2722 | enum bt_notif_iter_medium_status medium_status; | |
9e0c8dbb | 2723 | |
f6ccaed9 | 2724 | BT_ASSERT(notit); |
9e0c8dbb JG |
2725 | if (offset < 0) { |
2726 | BT_LOGE("Cannot seek to negative offset: offset=%jd", offset); | |
50842bdc | 2727 | ret = BT_NOTIF_ITER_STATUS_INVAL; |
9e0c8dbb JG |
2728 | goto end; |
2729 | } | |
2730 | ||
2731 | if (!notit->medium.medops.seek) { | |
50842bdc | 2732 | ret = BT_NOTIF_ITER_STATUS_UNSUPPORTED; |
9e0c8dbb JG |
2733 | BT_LOGD("Aborting seek as the iterator's underlying media does not implement seek support."); |
2734 | goto end; | |
2735 | } | |
2736 | ||
2737 | medium_status = notit->medium.medops.seek( | |
44c440bc | 2738 | BT_NOTIF_ITER_SEEK_WHENCE_SET, offset, notit->medium.data); |
50842bdc PP |
2739 | if (medium_status != BT_NOTIF_ITER_MEDIUM_STATUS_OK) { |
2740 | if (medium_status == BT_NOTIF_ITER_MEDIUM_STATUS_EOF) { | |
2741 | ret = BT_NOTIF_ITER_STATUS_EOF; | |
9e0c8dbb | 2742 | } else { |
50842bdc | 2743 | ret = BT_NOTIF_ITER_STATUS_ERROR; |
9e0c8dbb JG |
2744 | goto end; |
2745 | } | |
2746 | } | |
2747 | ||
50842bdc | 2748 | bt_notif_iter_reset(notit); |
9e0c8dbb | 2749 | notit->cur_packet_offset = offset; |
44c440bc | 2750 | |
9e0c8dbb JG |
2751 | end: |
2752 | return ret; | |
2753 | } | |
2754 | ||
2755 | BT_HIDDEN | |
44c440bc | 2756 | off_t bt_notif_iter_get_current_packet_offset(struct bt_notif_iter *notit) |
9e0c8dbb | 2757 | { |
f6ccaed9 | 2758 | BT_ASSERT(notit); |
9e0c8dbb JG |
2759 | return notit->cur_packet_offset; |
2760 | } | |
2761 | ||
2762 | BT_HIDDEN | |
50842bdc PP |
2763 | off_t bt_notif_iter_get_current_packet_size( |
2764 | struct bt_notif_iter *notit) | |
9e0c8dbb | 2765 | { |
f6ccaed9 | 2766 | BT_ASSERT(notit); |
44c440bc PP |
2767 | return notit->cur_exp_packet_total_size; |
2768 | } | |
2769 | ||
2770 | BT_HIDDEN | |
2771 | void bt_notif_trace_class_changed(struct bt_notif_iter *notit) | |
2772 | { | |
2773 | if (notit->meta.tc->stored_value_count > notit->stored_values->len) { | |
2774 | g_array_set_size(notit->stored_values, | |
2775 | notit->meta.tc->stored_value_count); | |
2776 | } | |
2777 | } | |
2778 | ||
2779 | BT_HIDDEN | |
2780 | enum bt_notif_iter_status bt_notif_iter_get_packet_properties( | |
2781 | struct bt_notif_iter *notit, | |
2782 | struct bt_notif_iter_packet_properties *props) | |
2783 | { | |
2784 | BT_ASSERT(notit); | |
2785 | BT_ASSERT(props); | |
2786 | ||
2787 | props->exp_packet_total_size = | |
2788 | (uint64_t) notit->cur_exp_packet_total_size; | |
2789 | props->exp_packet_content_size = | |
2790 | (uint64_t) notit->cur_exp_packet_content_size; | |
2791 | BT_ASSERT(props->stream_class_id >= 0); | |
2792 | props->stream_class_id = (uint64_t) notit->cur_stream_class_id; | |
2793 | props->data_stream_id = notit->cur_data_stream_id; | |
2794 | props->snapshots.discarded_events = notit->snapshots.discarded_events; | |
2795 | props->snapshots.packets = notit->snapshots.packets; | |
2796 | props->snapshots.beginning_clock = notit->snapshots.beginning_clock; | |
2797 | props->snapshots.end_clock = notit->snapshots.end_clock; | |
2798 | return BT_NOTIF_ITER_STATUS_OK; | |
9e0c8dbb | 2799 | } |