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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 | */ |
e5be10ef | 59 | struct bt_private_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 | 105 | /* Current notification iterator to create notifications (weak) */ |
d94d92ac | 106 | struct bt_self_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 | */ |
e5be10ef | 114 | struct bt_private_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 | 129 | /* Current packet header field wrapper (NULL if not created yet) */ |
e5be10ef | 130 | struct bt_private_packet_header_field *packet_header_field; |
312c056a PP |
131 | |
132 | /* Current packet header field wrapper (NULL if not created yet) */ | |
e5be10ef | 133 | struct bt_private_packet_context_field *packet_context_field; |
312c056a PP |
134 | |
135 | /* Current event header field (NULL if not created yet) */ | |
e5be10ef | 136 | struct bt_private_event_header_field *event_header_field; |
312c056a | 137 | |
e98a2d6e | 138 | /* Current packet (NULL if not created yet) */ |
e5be10ef | 139 | struct bt_private_packet *packet; |
e98a2d6e | 140 | |
af87daef | 141 | /* Current stream (NULL if not set yet) */ |
e5be10ef | 142 | struct bt_private_stream *stream; |
af87daef | 143 | |
312c056a | 144 | /* Current event (NULL if not created yet) */ |
e5be10ef | 145 | struct bt_private_event *event; |
312c056a PP |
146 | |
147 | /* Current event notification (NULL if not created yet) */ | |
e5be10ef | 148 | struct bt_private_notification *event_notif; |
312c056a | 149 | |
44c440bc | 150 | /* Database of current dynamic scopes */ |
e98a2d6e | 151 | struct { |
e5be10ef PP |
152 | struct bt_private_field *trace_packet_header; |
153 | struct bt_private_field *stream_packet_context; | |
154 | struct bt_private_field *event_header; | |
155 | struct bt_private_field *event_common_context; | |
156 | struct bt_private_field *event_spec_context; | |
157 | struct bt_private_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 | |
e5be10ef | 328 | void stack_push(struct stack *stack, struct bt_private_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, |
e5be10ef | 523 | struct bt_private_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) { | |
e5be10ef | 622 | bt_private_event_header_field_release(notit->event_header_field); |
312c056a PP |
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) { | |
e5be10ef | 637 | bt_private_packet_header_field_release(notit->packet_header_field); |
312c056a PP |
638 | notit->packet_header_field = NULL; |
639 | } | |
640 | ||
641 | notit->dscopes.stream_packet_context = NULL; | |
642 | ||
643 | if (notit->packet_context_field) { | |
e5be10ef | 644 | bt_private_packet_context_field_release(notit->packet_context_field); |
312c056a PP |
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 | */ | |
e5be10ef PP |
684 | notit->packet_header_field = |
685 | bt_private_packet_header_field_create( | |
686 | notit->meta.tc->ir_tc); | |
44c440bc PP |
687 | if (!notit->packet_header_field) { |
688 | BT_LOGE_STR("Cannot create packet header field wrapper from trace."); | |
689 | ret = BT_NOTIF_ITER_STATUS_ERROR; | |
690 | goto end; | |
691 | } | |
692 | ||
693 | notit->dscopes.trace_packet_header = | |
28e6ca8b | 694 | bt_private_packet_header_field_borrow_field( |
e5be10ef | 695 | notit->packet_header_field); |
44c440bc | 696 | BT_ASSERT(notit->dscopes.trace_packet_header); |
312c056a PP |
697 | } |
698 | ||
44c440bc PP |
699 | notit->cur_stream_class_id = -1; |
700 | notit->cur_event_class_id = -1; | |
701 | notit->cur_data_stream_id = -1; | |
fdf0e7a0 | 702 | BT_LOGV("Decoding packet header field:" |
5cd6d0e5 | 703 | "notit-addr=%p, trace-addr=%p, trace-name=\"%s\", fc-addr=%p", |
44c440bc | 704 | notit, notit->meta.tc, |
5cd6d0e5 PP |
705 | notit->meta.tc->name->str, packet_header_fc); |
706 | ret = read_dscope_begin_state(notit, packet_header_fc, | |
fdf0e7a0 PP |
707 | STATE_AFTER_TRACE_PACKET_HEADER, |
708 | STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE, | |
312c056a | 709 | notit->dscopes.trace_packet_header); |
fdf0e7a0 PP |
710 | if (ret < 0) { |
711 | BT_LOGW("Cannot decode packet header field: " | |
712 | "notit-addr=%p, trace-addr=%p, " | |
5cd6d0e5 | 713 | "trace-name=\"%s\", fc-addr=%p", |
44c440bc PP |
714 | notit, notit->meta.tc, |
715 | notit->meta.tc->name->str, | |
5cd6d0e5 | 716 | packet_header_fc); |
fdf0e7a0 | 717 | } |
d1e46835 | 718 | |
e98a2d6e | 719 | end: |
2cf1d51e | 720 | return ret; |
e98a2d6e PP |
721 | } |
722 | ||
723 | static | |
50842bdc PP |
724 | enum bt_notif_iter_status read_packet_header_continue_state( |
725 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
726 | { |
727 | return read_dscope_continue_state(notit, | |
44c440bc | 728 | STATE_AFTER_TRACE_PACKET_HEADER); |
5f870343 JG |
729 | } |
730 | ||
e98a2d6e | 731 | static inline |
44c440bc | 732 | enum bt_notif_iter_status set_current_stream_class(struct bt_notif_iter *notit) |
e98a2d6e | 733 | { |
50842bdc | 734 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
44c440bc PP |
735 | struct ctf_stream_class *new_stream_class = NULL; |
736 | ||
737 | if (notit->cur_stream_class_id == -1) { | |
fdf0e7a0 | 738 | /* |
44c440bc PP |
739 | * No current stream class ID field, therefore only one |
740 | * stream class. | |
fdf0e7a0 | 741 | */ |
44c440bc PP |
742 | if (notit->meta.tc->stream_classes->len != 1) { |
743 | BT_LOGW("Need exactly one stream class since there's " | |
744 | "no stream class ID field: " | |
745 | "notit-addr=%p, trace-name=\"%s\"", | |
746 | notit, notit->meta.tc->name->str); | |
747 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
748 | goto end; | |
749 | } | |
e98a2d6e | 750 | |
44c440bc PP |
751 | new_stream_class = notit->meta.tc->stream_classes->pdata[0]; |
752 | notit->cur_stream_class_id = new_stream_class->id; | |
753 | goto end; | |
e98a2d6e PP |
754 | } |
755 | ||
44c440bc PP |
756 | new_stream_class = ctf_trace_class_borrow_stream_class_by_id( |
757 | notit->meta.tc, notit->cur_stream_class_id); | |
115de887 | 758 | if (!new_stream_class) { |
fdf0e7a0 PP |
759 | BT_LOGW("No stream class with ID of stream class ID to use in trace: " |
760 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " | |
761 | "trace-addr=%p, trace-name=\"%s\"", | |
44c440bc PP |
762 | notit, notit->cur_stream_class_id, notit->meta.tc, |
763 | notit->meta.tc->name->str); | |
50842bdc | 764 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
765 | goto end; |
766 | } | |
767 | ||
44c440bc PP |
768 | if (notit->meta.sc) { |
769 | if (new_stream_class != notit->meta.sc) { | |
115de887 PP |
770 | BT_LOGW("Two packets refer to two different stream classes within the same packet sequence: " |
771 | "notit-addr=%p, prev-stream-class-addr=%p, " | |
115de887 PP |
772 | "prev-stream-class-id=%" PRId64 ", " |
773 | "next-stream-class-addr=%p, " | |
115de887 PP |
774 | "next-stream-class-id=%" PRId64 ", " |
775 | "trace-addr=%p, trace-name=\"%s\"", | |
44c440bc PP |
776 | notit, notit->meta.sc, |
777 | notit->meta.sc->id, | |
115de887 | 778 | new_stream_class, |
44c440bc PP |
779 | new_stream_class->id, |
780 | notit->meta.tc, | |
781 | notit->meta.tc->name->str); | |
50842bdc | 782 | status = BT_NOTIF_ITER_STATUS_ERROR; |
115de887 PP |
783 | goto end; |
784 | } | |
785 | } else { | |
44c440bc | 786 | notit->meta.sc = new_stream_class; |
115de887 PP |
787 | } |
788 | ||
fdf0e7a0 PP |
789 | BT_LOGV("Set current stream class: " |
790 | "notit-addr=%p, stream-class-addr=%p, " | |
44c440bc PP |
791 | "stream-class-id=%" PRId64, |
792 | notit, notit->meta.sc, notit->meta.sc->id); | |
d1e46835 | 793 | |
e98a2d6e | 794 | end: |
e98a2d6e PP |
795 | return status; |
796 | } | |
797 | ||
312c056a PP |
798 | static inline |
799 | enum bt_notif_iter_status set_current_stream(struct bt_notif_iter *notit) | |
800 | { | |
801 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; | |
e5be10ef | 802 | struct bt_private_stream *stream = NULL; |
312c056a PP |
803 | |
804 | BT_LOGV("Calling user function (get stream): notit-addr=%p, " | |
44c440bc PP |
805 | "stream-class-addr=%p, stream-class-id=%" PRId64, |
806 | notit, notit->meta.sc, | |
807 | notit->meta.sc->id); | |
398454ed | 808 | stream = notit->medium.medops.borrow_stream( |
44c440bc | 809 | notit->meta.sc->ir_sc, notit->cur_data_stream_id, |
398454ed PP |
810 | notit->medium.data); |
811 | bt_object_get_ref(stream); | |
312c056a PP |
812 | BT_LOGV("User function returned: stream-addr=%p", stream); |
813 | if (!stream) { | |
44c440bc PP |
814 | BT_LOGW_STR("User function failed to return a stream object " |
815 | "for the given stream class."); | |
312c056a PP |
816 | status = BT_NOTIF_ITER_STATUS_ERROR; |
817 | goto end; | |
818 | } | |
819 | ||
820 | if (notit->stream && stream != notit->stream) { | |
44c440bc PP |
821 | BT_LOGW("User function returned a different stream than the " |
822 | "previous one for the same sequence of packets."); | |
312c056a PP |
823 | status = BT_NOTIF_ITER_STATUS_ERROR; |
824 | goto end; | |
825 | } | |
826 | ||
65300d60 | 827 | BT_OBJECT_MOVE_REF(notit->stream, stream); |
312c056a PP |
828 | |
829 | end: | |
65300d60 | 830 | bt_object_put_ref(stream); |
312c056a PP |
831 | return status; |
832 | } | |
833 | ||
834 | static inline | |
835 | enum bt_notif_iter_status set_current_packet(struct bt_notif_iter *notit) | |
836 | { | |
837 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; | |
e5be10ef | 838 | struct bt_private_packet *packet = NULL; |
312c056a PP |
839 | |
840 | BT_LOGV("Creating packet for packet notification: " | |
841 | "notit-addr=%p", notit); | |
842 | BT_LOGV("Creating packet from stream: " | |
843 | "notit-addr=%p, stream-addr=%p, " | |
844 | "stream-class-addr=%p, " | |
312c056a | 845 | "stream-class-id=%" PRId64, |
44c440bc PP |
846 | notit, notit->stream, notit->meta.sc, |
847 | notit->meta.sc->id); | |
312c056a PP |
848 | |
849 | /* Create packet */ | |
850 | BT_ASSERT(notit->stream); | |
e5be10ef | 851 | packet = bt_private_packet_create(notit->stream); |
312c056a PP |
852 | if (!packet) { |
853 | BT_LOGE("Cannot create packet from stream: " | |
854 | "notit-addr=%p, stream-addr=%p, " | |
855 | "stream-class-addr=%p, " | |
312c056a | 856 | "stream-class-id=%" PRId64, |
44c440bc PP |
857 | notit, notit->stream, notit->meta.sc, |
858 | notit->meta.sc->id); | |
312c056a PP |
859 | goto error; |
860 | } | |
861 | ||
862 | goto end; | |
863 | ||
864 | error: | |
65300d60 | 865 | BT_OBJECT_PUT_REF_AND_RESET(packet); |
312c056a PP |
866 | status = BT_NOTIF_ITER_STATUS_ERROR; |
867 | ||
868 | end: | |
65300d60 | 869 | BT_OBJECT_MOVE_REF(notit->packet, packet); |
312c056a PP |
870 | return status; |
871 | } | |
872 | ||
e98a2d6e | 873 | static |
50842bdc PP |
874 | enum bt_notif_iter_status after_packet_header_state( |
875 | struct bt_notif_iter *notit) | |
e98a2d6e | 876 | { |
50842bdc | 877 | enum bt_notif_iter_status status; |
e98a2d6e PP |
878 | |
879 | status = set_current_stream_class(notit); | |
312c056a PP |
880 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
881 | goto end; | |
e98a2d6e PP |
882 | } |
883 | ||
312c056a PP |
884 | notit->state = STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN; |
885 | ||
886 | end: | |
e98a2d6e PP |
887 | return status; |
888 | } | |
889 | ||
890 | static | |
50842bdc PP |
891 | enum bt_notif_iter_status read_packet_context_begin_state( |
892 | struct bt_notif_iter *notit) | |
e98a2d6e | 893 | { |
50842bdc | 894 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
5cd6d0e5 | 895 | struct ctf_field_class *packet_context_fc; |
e98a2d6e | 896 | |
44c440bc | 897 | BT_ASSERT(notit->meta.sc); |
5cd6d0e5 PP |
898 | packet_context_fc = notit->meta.sc->packet_context_fc; |
899 | if (!packet_context_fc) { | |
900 | BT_LOGV("No packet packet context field class in stream class: continuing: " | |
fdf0e7a0 | 901 | "notit-addr=%p, stream-class-addr=%p, " |
44c440bc PP |
902 | "stream-class-id=%" PRId64, |
903 | notit, notit->meta.sc, | |
904 | notit->meta.sc->id); | |
835b2d10 | 905 | notit->state = STATE_AFTER_STREAM_PACKET_CONTEXT; |
e98a2d6e PP |
906 | goto end; |
907 | } | |
908 | ||
312c056a | 909 | BT_ASSERT(!notit->packet_context_field); |
44c440bc | 910 | |
5cd6d0e5 | 911 | if (packet_context_fc->in_ir) { |
44c440bc PP |
912 | /* |
913 | * Create free packet context field from stream class. | |
914 | * This field is going to be moved to the packet once we | |
915 | * create it. We cannot create the packet now because a | |
916 | * packet is created from a stream, and this API must be | |
917 | * able to return the packet header and context fields | |
918 | * without creating a stream | |
919 | * (bt_notif_iter_borrow_packet_header_context_fields()). | |
920 | */ | |
921 | notit->packet_context_field = | |
e5be10ef PP |
922 | bt_private_packet_context_field_create( |
923 | notit->meta.sc->ir_sc); | |
44c440bc PP |
924 | if (!notit->packet_context_field) { |
925 | BT_LOGE_STR("Cannot create packet context field wrapper from stream class."); | |
926 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
927 | goto end; | |
928 | } | |
929 | ||
930 | notit->dscopes.stream_packet_context = | |
28e6ca8b | 931 | bt_private_packet_context_field_borrow_field( |
e5be10ef | 932 | notit->packet_context_field); |
44c440bc | 933 | BT_ASSERT(notit->dscopes.stream_packet_context); |
312c056a PP |
934 | } |
935 | ||
fdf0e7a0 PP |
936 | BT_LOGV("Decoding packet context field: " |
937 | "notit-addr=%p, stream-class-addr=%p, " | |
5cd6d0e5 | 938 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc | 939 | notit, notit->meta.sc, |
5cd6d0e5 PP |
940 | notit->meta.sc->id, packet_context_fc); |
941 | status = read_dscope_begin_state(notit, packet_context_fc, | |
fdf0e7a0 PP |
942 | STATE_AFTER_STREAM_PACKET_CONTEXT, |
943 | STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE, | |
312c056a | 944 | notit->dscopes.stream_packet_context); |
fdf0e7a0 PP |
945 | if (status < 0) { |
946 | BT_LOGW("Cannot decode packet context field: " | |
947 | "notit-addr=%p, stream-class-addr=%p, " | |
5cd6d0e5 | 948 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
949 | notit, notit->meta.sc, |
950 | notit->meta.sc->id, | |
5cd6d0e5 | 951 | packet_context_fc); |
fdf0e7a0 | 952 | } |
e98a2d6e PP |
953 | |
954 | end: | |
e98a2d6e PP |
955 | return status; |
956 | } | |
957 | ||
958 | static | |
50842bdc PP |
959 | enum bt_notif_iter_status read_packet_context_continue_state( |
960 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
961 | { |
962 | return read_dscope_continue_state(notit, | |
78586d8a | 963 | STATE_AFTER_STREAM_PACKET_CONTEXT); |
e98a2d6e PP |
964 | } |
965 | ||
78586d8a | 966 | static |
50842bdc PP |
967 | enum bt_notif_iter_status set_current_packet_content_sizes( |
968 | struct bt_notif_iter *notit) | |
e98a2d6e | 969 | { |
50842bdc | 970 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e | 971 | |
44c440bc PP |
972 | if (notit->cur_exp_packet_total_size == -1) { |
973 | if (notit->cur_exp_packet_content_size != -1) { | |
974 | BT_LOGW("Content size is set, but packet size is not: " | |
fdf0e7a0 | 975 | "notit-addr=%p, packet-context-field-addr=%p, " |
44c440bc | 976 | "packet-size=%" PRId64 ", content-size=%" PRId64, |
fdf0e7a0 | 977 | notit, notit->dscopes.stream_packet_context, |
44c440bc PP |
978 | notit->cur_exp_packet_total_size, |
979 | notit->cur_exp_packet_content_size); | |
50842bdc | 980 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
981 | goto end; |
982 | } | |
e98a2d6e | 983 | } else { |
44c440bc PP |
984 | if (notit->cur_exp_packet_content_size == -1) { |
985 | notit->cur_exp_packet_content_size = | |
986 | notit->cur_exp_packet_total_size; | |
987 | } | |
e98a2d6e PP |
988 | } |
989 | ||
44c440bc PP |
990 | if (notit->cur_exp_packet_content_size > |
991 | notit->cur_exp_packet_total_size) { | |
992 | BT_LOGW("Invalid packet or content size: " | |
993 | "content size is greater than packet size: " | |
fdf0e7a0 | 994 | "notit-addr=%p, packet-context-field-addr=%p, " |
44c440bc | 995 | "packet-size=%" PRId64 ", content-size=%" PRId64, |
fdf0e7a0 | 996 | notit, notit->dscopes.stream_packet_context, |
44c440bc PP |
997 | notit->cur_exp_packet_total_size, |
998 | notit->cur_exp_packet_content_size); | |
50842bdc | 999 | status = BT_NOTIF_ITER_STATUS_ERROR; |
fdf0e7a0 PP |
1000 | goto end; |
1001 | } | |
1002 | ||
fdf0e7a0 PP |
1003 | BT_LOGV("Set current packet and content sizes: " |
1004 | "notit-addr=%p, packet-size=%" PRIu64 ", content-size=%" PRIu64, | |
44c440bc PP |
1005 | notit, notit->cur_exp_packet_total_size, |
1006 | notit->cur_exp_packet_content_size); | |
e98a2d6e | 1007 | end: |
e98a2d6e PP |
1008 | return status; |
1009 | } | |
1010 | ||
1011 | static | |
50842bdc PP |
1012 | enum bt_notif_iter_status after_packet_context_state( |
1013 | struct bt_notif_iter *notit) | |
e98a2d6e | 1014 | { |
50842bdc | 1015 | enum bt_notif_iter_status status; |
e98a2d6e PP |
1016 | |
1017 | status = set_current_packet_content_sizes(notit); | |
e22b45d0 PP |
1018 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
1019 | goto end; | |
1020 | } | |
1021 | ||
e22b45d0 PP |
1022 | if (notit->stream_begin_emitted) { |
1023 | notit->state = STATE_EMIT_NOTIF_NEW_PACKET; | |
1024 | } else { | |
1025 | notit->state = STATE_EMIT_NOTIF_NEW_STREAM; | |
e98a2d6e PP |
1026 | } |
1027 | ||
e22b45d0 | 1028 | end: |
e98a2d6e PP |
1029 | return status; |
1030 | } | |
1031 | ||
1032 | static | |
50842bdc PP |
1033 | enum bt_notif_iter_status read_event_header_begin_state( |
1034 | struct bt_notif_iter *notit) | |
e98a2d6e | 1035 | { |
50842bdc | 1036 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
5cd6d0e5 | 1037 | struct ctf_field_class *event_header_fc = NULL; |
e98a2d6e | 1038 | |
174e773b PP |
1039 | /* Reset the position of the last event header */ |
1040 | notit->buf.last_eh_at = notit->buf.at; | |
44c440bc | 1041 | notit->cur_event_class_id = -1; |
174e773b | 1042 | |
e98a2d6e | 1043 | /* Check if we have some content left */ |
44c440bc PP |
1044 | if (notit->cur_exp_packet_content_size >= 0) { |
1045 | if (unlikely(packet_at(notit) == | |
1046 | notit->cur_exp_packet_content_size)) { | |
e98a2d6e | 1047 | /* No more events! */ |
fdf0e7a0 PP |
1048 | BT_LOGV("Reached end of packet: notit-addr=%p, " |
1049 | "cur=%zu", notit, packet_at(notit)); | |
e98a2d6e PP |
1050 | notit->state = STATE_EMIT_NOTIF_END_OF_PACKET; |
1051 | goto end; | |
44c440bc PP |
1052 | } else if (unlikely(packet_at(notit) > |
1053 | notit->cur_exp_packet_content_size)) { | |
e98a2d6e | 1054 | /* That's not supposed to happen */ |
fdf0e7a0 | 1055 | BT_LOGV("Before decoding event header field: cursor is passed the packet's content: " |
1974687e | 1056 | "notit-addr=%p, content-size=%" PRId64 ", " |
44c440bc PP |
1057 | "cur=%zu", notit, |
1058 | notit->cur_exp_packet_content_size, | |
fdf0e7a0 | 1059 | packet_at(notit)); |
50842bdc | 1060 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
1061 | goto end; |
1062 | } | |
44c440bc PP |
1063 | } else { |
1064 | /* | |
1065 | * "Infinite" content: we're done when the medium has | |
1066 | * nothing else for us. | |
1067 | */ | |
1068 | status = buf_ensure_available_bits(notit); | |
1069 | if (status != BT_NOTIF_ITER_STATUS_OK) { | |
1070 | /* | |
1071 | * If this function returns | |
1072 | * `BT_NOTIF_ITER_STATUS_EOF`: | |
1073 | * | |
1074 | * 1. bt_notif_iter_get_next_notification() | |
1075 | * emits a "packet end" notification. This | |
1076 | * resets the current packet. The state | |
1077 | * remains unchanged otherwise. | |
1078 | * 2. This function is called again. It returns | |
1079 | * `BT_NOTIF_ITER_STATUS_EOF` again. | |
1080 | * 3. bt_notif_iter_get_next_notification() | |
1081 | * emits a "stream end" notification because | |
1082 | * there's no current packet. It sets the | |
1083 | * current state to `STATE_DONE`. | |
1084 | */ | |
1085 | goto end; | |
1086 | } | |
e98a2d6e PP |
1087 | } |
1088 | ||
312c056a | 1089 | release_event_dscopes(notit); |
44c440bc | 1090 | BT_ASSERT(notit->meta.sc); |
5cd6d0e5 PP |
1091 | event_header_fc = notit->meta.sc->event_header_fc; |
1092 | if (!event_header_fc) { | |
44c440bc | 1093 | notit->state = STATE_AFTER_EVENT_HEADER; |
e98a2d6e PP |
1094 | goto end; |
1095 | } | |
1096 | ||
5cd6d0e5 | 1097 | if (event_header_fc->in_ir) { |
44c440bc | 1098 | BT_ASSERT(!notit->event_header_field); |
e5be10ef PP |
1099 | notit->event_header_field = |
1100 | bt_private_event_header_field_create( | |
1101 | notit->meta.sc->ir_sc); | |
44c440bc PP |
1102 | if (!notit->event_header_field) { |
1103 | BT_LOGE_STR("Cannot create event header field wrapper from trace."); | |
1104 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1105 | goto end; | |
1106 | } | |
1107 | ||
1108 | notit->dscopes.event_header = | |
28e6ca8b | 1109 | bt_private_event_header_field_borrow_field( |
e5be10ef | 1110 | notit->event_header_field); |
44c440bc | 1111 | BT_ASSERT(notit->dscopes.event_header); |
312c056a PP |
1112 | } |
1113 | ||
fdf0e7a0 PP |
1114 | BT_LOGV("Decoding event header field: " |
1115 | "notit-addr=%p, stream-class-addr=%p, " | |
44c440bc | 1116 | "stream-class-id=%" PRId64 ", " |
5cd6d0e5 | 1117 | "fc-addr=%p", |
44c440bc PP |
1118 | notit, notit->meta.sc, |
1119 | notit->meta.sc->id, | |
5cd6d0e5 PP |
1120 | event_header_fc); |
1121 | status = read_dscope_begin_state(notit, event_header_fc, | |
44c440bc PP |
1122 | STATE_AFTER_EVENT_HEADER, |
1123 | STATE_DSCOPE_EVENT_HEADER_CONTINUE, | |
1124 | notit->dscopes.event_header); | |
fdf0e7a0 PP |
1125 | if (status < 0) { |
1126 | BT_LOGW("Cannot decode event header field: " | |
1127 | "notit-addr=%p, stream-class-addr=%p, " | |
5cd6d0e5 | 1128 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1129 | notit, notit->meta.sc, |
1130 | notit->meta.sc->id, | |
5cd6d0e5 | 1131 | event_header_fc); |
fdf0e7a0 | 1132 | } |
e98a2d6e | 1133 | |
d1e46835 | 1134 | end: |
e98a2d6e PP |
1135 | return status; |
1136 | } | |
1137 | ||
1138 | static | |
50842bdc PP |
1139 | enum bt_notif_iter_status read_event_header_continue_state( |
1140 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1141 | { |
1142 | return read_dscope_continue_state(notit, | |
44c440bc | 1143 | STATE_AFTER_EVENT_HEADER); |
e98a2d6e PP |
1144 | } |
1145 | ||
1146 | static inline | |
50842bdc | 1147 | enum bt_notif_iter_status set_current_event_class(struct bt_notif_iter *notit) |
e98a2d6e | 1148 | { |
50842bdc | 1149 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e | 1150 | |
44c440bc | 1151 | struct ctf_event_class *new_event_class = NULL; |
e98a2d6e | 1152 | |
44c440bc | 1153 | if (notit->cur_event_class_id == -1) { |
e98a2d6e | 1154 | /* |
44c440bc PP |
1155 | * No current event class ID field, therefore only one |
1156 | * event class. | |
e98a2d6e | 1157 | */ |
44c440bc PP |
1158 | if (notit->meta.sc->event_classes->len != 1) { |
1159 | BT_LOGW("Need exactly one event class since there's " | |
1160 | "no event class ID field: " | |
1161 | "notit-addr=%p, trace-name=\"%s\"", | |
1162 | notit, notit->meta.tc->name->str); | |
1163 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1164 | goto end; | |
fdf0e7a0 | 1165 | } |
e98a2d6e | 1166 | |
44c440bc PP |
1167 | new_event_class = notit->meta.sc->event_classes->pdata[0]; |
1168 | notit->cur_event_class_id = new_event_class->id; | |
1169 | goto end; | |
e98a2d6e PP |
1170 | } |
1171 | ||
44c440bc PP |
1172 | new_event_class = ctf_stream_class_borrow_event_class_by_id( |
1173 | notit->meta.sc, notit->cur_event_class_id); | |
1174 | if (!new_event_class) { | |
fdf0e7a0 | 1175 | BT_LOGW("No event class with ID of event class ID to use in stream class: " |
44c440bc PP |
1176 | "notit-addr=%p, stream-class-id=%" PRIu64 ", " |
1177 | "event-class-id=%" PRIu64 ", " | |
1178 | "trace-addr=%p, trace-name=\"%s\"", | |
1179 | notit, notit->meta.sc->id, notit->cur_event_class_id, | |
1180 | notit->meta.tc, notit->meta.tc->name->str); | |
50842bdc | 1181 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e PP |
1182 | goto end; |
1183 | } | |
1184 | ||
44c440bc | 1185 | notit->meta.ec = new_event_class; |
fdf0e7a0 PP |
1186 | BT_LOGV("Set current event class: " |
1187 | "notit-addr=%p, event-class-addr=%p, " | |
44c440bc PP |
1188 | "event-class-id=%" PRId64 ", " |
1189 | "event-class-name=\"%s\"", | |
1190 | notit, notit->meta.ec, notit->meta.ec->id, | |
1191 | notit->meta.ec->name->str); | |
fdf0e7a0 | 1192 | |
e98a2d6e | 1193 | end: |
e98a2d6e PP |
1194 | return status; |
1195 | } | |
1196 | ||
312c056a PP |
1197 | static inline |
1198 | enum bt_notif_iter_status set_current_event_notification( | |
1199 | struct bt_notif_iter *notit) | |
1200 | { | |
1201 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; | |
e5be10ef | 1202 | struct bt_private_notification *notif = NULL; |
312c056a | 1203 | |
44c440bc | 1204 | BT_ASSERT(notit->meta.ec); |
312c056a PP |
1205 | BT_ASSERT(notit->packet); |
1206 | BT_LOGV("Creating event notification from event class and packet: " | |
1207 | "notit-addr=%p, ec-addr=%p, ec-name=\"%s\", packet-addr=%p", | |
44c440bc PP |
1208 | notit, notit->meta.ec, |
1209 | notit->meta.ec->name->str, | |
312c056a | 1210 | notit->packet); |
f0010051 | 1211 | BT_ASSERT(notit->notif_iter); |
e5be10ef | 1212 | notif = bt_private_notification_event_create(notit->notif_iter, |
44c440bc | 1213 | notit->meta.ec->ir_ec, notit->packet); |
312c056a PP |
1214 | if (!notif) { |
1215 | BT_LOGE("Cannot create event notification: " | |
1216 | "notit-addr=%p, ec-addr=%p, ec-name=\"%s\", " | |
1217 | "packet-addr=%p", | |
44c440bc PP |
1218 | notit, notit->meta.ec, |
1219 | notit->meta.ec->name->str, | |
312c056a PP |
1220 | notit->packet); |
1221 | goto error; | |
1222 | } | |
1223 | ||
1224 | goto end; | |
1225 | ||
1226 | error: | |
65300d60 | 1227 | BT_OBJECT_PUT_REF_AND_RESET(notif); |
312c056a PP |
1228 | status = BT_NOTIF_ITER_STATUS_ERROR; |
1229 | ||
1230 | end: | |
65300d60 | 1231 | BT_OBJECT_MOVE_REF(notit->event_notif, notif); |
312c056a PP |
1232 | return status; |
1233 | } | |
1234 | ||
e98a2d6e | 1235 | static |
50842bdc PP |
1236 | enum bt_notif_iter_status after_event_header_state( |
1237 | struct bt_notif_iter *notit) | |
e98a2d6e | 1238 | { |
50842bdc | 1239 | enum bt_notif_iter_status status; |
e98a2d6e | 1240 | |
e98a2d6e | 1241 | status = set_current_event_class(notit); |
50842bdc | 1242 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
e98a2d6e PP |
1243 | goto end; |
1244 | } | |
1245 | ||
312c056a PP |
1246 | status = set_current_event_notification(notit); |
1247 | if (status != BT_NOTIF_ITER_STATUS_OK) { | |
1248 | goto end; | |
1249 | } | |
1250 | ||
28e6ca8b | 1251 | notit->event = bt_private_notification_event_borrow_event( |
e5be10ef | 1252 | notit->event_notif); |
312c056a PP |
1253 | BT_ASSERT(notit->event); |
1254 | ||
1255 | if (notit->event_header_field) { | |
1256 | int ret; | |
1257 | ||
1258 | BT_ASSERT(notit->event); | |
28e6ca8b | 1259 | ret = bt_private_event_move_header_field(notit->event, |
312c056a | 1260 | notit->event_header_field); |
312c056a PP |
1261 | if (ret) { |
1262 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
1263 | goto end; | |
1264 | } | |
1265 | ||
1266 | notit->event_header_field = NULL; | |
1267 | ||
1268 | /* | |
44c440bc | 1269 | * At this point notit->dscopes.event_header has |
312c056a PP |
1270 | * the same value as the event header field within |
1271 | * notit->event. | |
1272 | */ | |
28e6ca8b | 1273 | BT_ASSERT(bt_private_event_borrow_header_field( |
e5be10ef | 1274 | notit->event) == notit->dscopes.event_header); |
312c056a PP |
1275 | } |
1276 | ||
44c440bc | 1277 | notit->state = STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN; |
e98a2d6e PP |
1278 | |
1279 | end: | |
1280 | return status; | |
1281 | } | |
1282 | ||
1283 | static | |
44c440bc | 1284 | enum bt_notif_iter_status read_event_common_context_begin_state( |
50842bdc | 1285 | struct bt_notif_iter *notit) |
e98a2d6e | 1286 | { |
50842bdc | 1287 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
5cd6d0e5 | 1288 | struct ctf_field_class *event_common_context_fc; |
e98a2d6e | 1289 | |
5cd6d0e5 PP |
1290 | event_common_context_fc = notit->meta.sc->event_common_context_fc; |
1291 | if (!event_common_context_fc) { | |
44c440bc | 1292 | notit->state = STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN; |
e98a2d6e PP |
1293 | goto end; |
1294 | } | |
1295 | ||
5cd6d0e5 | 1296 | if (event_common_context_fc->in_ir) { |
44c440bc PP |
1297 | BT_ASSERT(!notit->dscopes.event_common_context); |
1298 | notit->dscopes.event_common_context = | |
28e6ca8b | 1299 | bt_private_event_borrow_common_context_field( |
e5be10ef | 1300 | notit->event); |
44c440bc PP |
1301 | BT_ASSERT(notit->dscopes.event_common_context); |
1302 | } | |
1303 | ||
1304 | BT_LOGV("Decoding event common context field: " | |
fdf0e7a0 | 1305 | "notit-addr=%p, stream-class-addr=%p, " |
44c440bc | 1306 | "stream-class-id=%" PRId64 ", " |
5cd6d0e5 | 1307 | "fc-addr=%p", |
44c440bc PP |
1308 | notit, notit->meta.sc, |
1309 | notit->meta.sc->id, | |
5cd6d0e5 PP |
1310 | event_common_context_fc); |
1311 | status = read_dscope_begin_state(notit, event_common_context_fc, | |
44c440bc PP |
1312 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN, |
1313 | STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE, | |
1314 | notit->dscopes.event_common_context); | |
fdf0e7a0 | 1315 | if (status < 0) { |
44c440bc | 1316 | BT_LOGW("Cannot decode event common context field: " |
fdf0e7a0 | 1317 | "notit-addr=%p, stream-class-addr=%p, " |
5cd6d0e5 | 1318 | "stream-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1319 | notit, notit->meta.sc, |
1320 | notit->meta.sc->id, | |
5cd6d0e5 | 1321 | event_common_context_fc); |
fdf0e7a0 | 1322 | } |
e98a2d6e PP |
1323 | |
1324 | end: | |
e98a2d6e PP |
1325 | return status; |
1326 | } | |
1327 | ||
1328 | static | |
44c440bc | 1329 | enum bt_notif_iter_status read_event_common_context_continue_state( |
50842bdc | 1330 | struct bt_notif_iter *notit) |
e98a2d6e PP |
1331 | { |
1332 | return read_dscope_continue_state(notit, | |
44c440bc | 1333 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN); |
e98a2d6e PP |
1334 | } |
1335 | ||
1336 | static | |
44c440bc | 1337 | enum bt_notif_iter_status read_event_spec_context_begin_state( |
50842bdc | 1338 | struct bt_notif_iter *notit) |
e98a2d6e | 1339 | { |
50842bdc | 1340 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
5cd6d0e5 | 1341 | struct ctf_field_class *event_spec_context_fc; |
e98a2d6e | 1342 | |
5cd6d0e5 PP |
1343 | event_spec_context_fc = notit->meta.ec->spec_context_fc; |
1344 | if (!event_spec_context_fc) { | |
835b2d10 | 1345 | notit->state = STATE_DSCOPE_EVENT_PAYLOAD_BEGIN; |
e98a2d6e PP |
1346 | goto end; |
1347 | } | |
fdf0e7a0 | 1348 | |
5cd6d0e5 | 1349 | if (event_spec_context_fc->in_ir) { |
44c440bc | 1350 | BT_ASSERT(!notit->dscopes.event_spec_context); |
e5be10ef | 1351 | notit->dscopes.event_spec_context = |
28e6ca8b | 1352 | bt_private_event_borrow_specific_context_field( |
e5be10ef | 1353 | notit->event); |
44c440bc PP |
1354 | BT_ASSERT(notit->dscopes.event_spec_context); |
1355 | } | |
1356 | ||
1357 | BT_LOGV("Decoding event specific context field: " | |
fdf0e7a0 PP |
1358 | "notit-addr=%p, event-class-addr=%p, " |
1359 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
5cd6d0e5 | 1360 | "fc-addr=%p", |
44c440bc PP |
1361 | notit, notit->meta.ec, |
1362 | notit->meta.ec->name->str, | |
1363 | notit->meta.ec->id, | |
5cd6d0e5 PP |
1364 | event_spec_context_fc); |
1365 | status = read_dscope_begin_state(notit, event_spec_context_fc, | |
e98a2d6e | 1366 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN, |
44c440bc PP |
1367 | STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE, |
1368 | notit->dscopes.event_spec_context); | |
fdf0e7a0 | 1369 | if (status < 0) { |
44c440bc | 1370 | BT_LOGW("Cannot decode event specific context field: " |
fdf0e7a0 PP |
1371 | "notit-addr=%p, event-class-addr=%p, " |
1372 | "event-class-name=\"%s\", " | |
5cd6d0e5 | 1373 | "event-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1374 | notit, notit->meta.ec, |
1375 | notit->meta.ec->name->str, | |
1376 | notit->meta.ec->id, | |
5cd6d0e5 | 1377 | event_spec_context_fc); |
fdf0e7a0 | 1378 | } |
e98a2d6e PP |
1379 | |
1380 | end: | |
e98a2d6e PP |
1381 | return status; |
1382 | } | |
1383 | ||
1384 | static | |
44c440bc | 1385 | enum bt_notif_iter_status read_event_spec_context_continue_state( |
50842bdc | 1386 | struct bt_notif_iter *notit) |
e98a2d6e PP |
1387 | { |
1388 | return read_dscope_continue_state(notit, | |
1389 | STATE_DSCOPE_EVENT_PAYLOAD_BEGIN); | |
1390 | } | |
1391 | ||
1392 | static | |
50842bdc PP |
1393 | enum bt_notif_iter_status read_event_payload_begin_state( |
1394 | struct bt_notif_iter *notit) | |
e98a2d6e | 1395 | { |
50842bdc | 1396 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
5cd6d0e5 | 1397 | struct ctf_field_class *event_payload_fc; |
e98a2d6e | 1398 | |
5cd6d0e5 PP |
1399 | event_payload_fc = notit->meta.ec->payload_fc; |
1400 | if (!event_payload_fc) { | |
835b2d10 | 1401 | notit->state = STATE_EMIT_NOTIF_EVENT; |
e98a2d6e PP |
1402 | goto end; |
1403 | } | |
1404 | ||
5cd6d0e5 | 1405 | if (event_payload_fc->in_ir) { |
44c440bc | 1406 | BT_ASSERT(!notit->dscopes.event_payload); |
e5be10ef | 1407 | notit->dscopes.event_payload = |
28e6ca8b | 1408 | bt_private_event_borrow_payload_field( |
e5be10ef | 1409 | notit->event); |
44c440bc PP |
1410 | BT_ASSERT(notit->dscopes.event_payload); |
1411 | } | |
1412 | ||
fdf0e7a0 PP |
1413 | BT_LOGV("Decoding event payload field: " |
1414 | "notit-addr=%p, event-class-addr=%p, " | |
1415 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " | |
5cd6d0e5 | 1416 | "fc-addr=%p", |
44c440bc PP |
1417 | notit, notit->meta.ec, |
1418 | notit->meta.ec->name->str, | |
1419 | notit->meta.ec->id, | |
5cd6d0e5 PP |
1420 | event_payload_fc); |
1421 | status = read_dscope_begin_state(notit, event_payload_fc, | |
e98a2d6e PP |
1422 | STATE_EMIT_NOTIF_EVENT, |
1423 | STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE, | |
312c056a | 1424 | notit->dscopes.event_payload); |
fdf0e7a0 PP |
1425 | if (status < 0) { |
1426 | BT_LOGW("Cannot decode event payload field: " | |
1427 | "notit-addr=%p, event-class-addr=%p, " | |
1428 | "event-class-name=\"%s\", " | |
5cd6d0e5 | 1429 | "event-class-id=%" PRId64 ", fc-addr=%p", |
44c440bc PP |
1430 | notit, notit->meta.ec, |
1431 | notit->meta.ec->name->str, | |
1432 | notit->meta.ec->id, | |
5cd6d0e5 | 1433 | event_payload_fc); |
fdf0e7a0 | 1434 | } |
e98a2d6e PP |
1435 | |
1436 | end: | |
e98a2d6e PP |
1437 | return status; |
1438 | } | |
1439 | ||
1440 | static | |
50842bdc PP |
1441 | enum bt_notif_iter_status read_event_payload_continue_state( |
1442 | struct bt_notif_iter *notit) | |
e98a2d6e PP |
1443 | { |
1444 | return read_dscope_continue_state(notit, STATE_EMIT_NOTIF_EVENT); | |
1445 | } | |
1446 | ||
1447 | static | |
50842bdc PP |
1448 | enum bt_notif_iter_status skip_packet_padding_state( |
1449 | struct bt_notif_iter *notit) | |
e98a2d6e | 1450 | { |
50842bdc | 1451 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e PP |
1452 | size_t bits_to_skip; |
1453 | ||
44c440bc PP |
1454 | BT_ASSERT(notit->cur_exp_packet_total_size > 0); |
1455 | bits_to_skip = notit->cur_exp_packet_total_size - packet_at(notit); | |
e98a2d6e PP |
1456 | if (bits_to_skip == 0) { |
1457 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1458 | goto end; | |
1459 | } else { | |
1460 | size_t bits_to_consume; | |
fdf0e7a0 PP |
1461 | |
1462 | BT_LOGV("Trying to skip %zu bits of padding: notit-addr=%p, size=%zu", | |
1463 | bits_to_skip, notit, bits_to_skip); | |
e98a2d6e | 1464 | status = buf_ensure_available_bits(notit); |
50842bdc | 1465 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
e98a2d6e PP |
1466 | goto end; |
1467 | } | |
1468 | ||
1469 | bits_to_consume = MIN(buf_available_bits(notit), bits_to_skip); | |
fdf0e7a0 PP |
1470 | BT_LOGV("Skipping %zu bits of padding: notit-addr=%p, size=%zu", |
1471 | bits_to_consume, notit, bits_to_consume); | |
e98a2d6e | 1472 | buf_consume_bits(notit, bits_to_consume); |
44c440bc PP |
1473 | bits_to_skip = notit->cur_exp_packet_total_size - |
1474 | packet_at(notit); | |
e98a2d6e PP |
1475 | if (bits_to_skip == 0) { |
1476 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1477 | goto end; | |
1478 | } | |
1479 | } | |
1480 | ||
1481 | end: | |
1482 | return status; | |
1483 | } | |
1484 | ||
1485 | static inline | |
50842bdc | 1486 | enum bt_notif_iter_status handle_state(struct bt_notif_iter *notit) |
e98a2d6e | 1487 | { |
50842bdc | 1488 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
fdf0e7a0 | 1489 | const enum state state = notit->state; |
e98a2d6e | 1490 | |
fdf0e7a0 PP |
1491 | BT_LOGV("Handling state: notit-addr=%p, state=%s", |
1492 | notit, state_string(state)); | |
e98a2d6e PP |
1493 | |
1494 | // TODO: optimalize! | |
fdf0e7a0 | 1495 | switch (state) { |
e98a2d6e PP |
1496 | case STATE_INIT: |
1497 | notit->state = STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN; | |
1498 | break; | |
1499 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: | |
1500 | status = read_packet_header_begin_state(notit); | |
1501 | break; | |
1502 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
1503 | status = read_packet_header_continue_state(notit); | |
1504 | break; | |
1505 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
1506 | status = after_packet_header_state(notit); | |
1507 | break; | |
1508 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
1509 | status = read_packet_context_begin_state(notit); | |
1510 | break; | |
1511 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
1512 | status = read_packet_context_continue_state(notit); | |
1513 | break; | |
1514 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
1515 | status = after_packet_context_state(notit); | |
1516 | break; | |
f42867e2 PP |
1517 | case STATE_EMIT_NOTIF_NEW_STREAM: |
1518 | notit->state = STATE_EMIT_NOTIF_NEW_PACKET; | |
1519 | break; | |
e98a2d6e | 1520 | case STATE_EMIT_NOTIF_NEW_PACKET: |
44c440bc | 1521 | notit->state = STATE_DSCOPE_EVENT_HEADER_BEGIN; |
e98a2d6e | 1522 | break; |
44c440bc | 1523 | case STATE_DSCOPE_EVENT_HEADER_BEGIN: |
e98a2d6e PP |
1524 | status = read_event_header_begin_state(notit); |
1525 | break; | |
44c440bc | 1526 | case STATE_DSCOPE_EVENT_HEADER_CONTINUE: |
e98a2d6e PP |
1527 | status = read_event_header_continue_state(notit); |
1528 | break; | |
44c440bc | 1529 | case STATE_AFTER_EVENT_HEADER: |
e98a2d6e PP |
1530 | status = after_event_header_state(notit); |
1531 | break; | |
44c440bc PP |
1532 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_BEGIN: |
1533 | status = read_event_common_context_begin_state(notit); | |
e98a2d6e | 1534 | break; |
44c440bc PP |
1535 | case STATE_DSCOPE_EVENT_COMMON_CONTEXT_CONTINUE: |
1536 | status = read_event_common_context_continue_state(notit); | |
e98a2d6e | 1537 | break; |
44c440bc PP |
1538 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_BEGIN: |
1539 | status = read_event_spec_context_begin_state(notit); | |
e98a2d6e | 1540 | break; |
44c440bc PP |
1541 | case STATE_DSCOPE_EVENT_SPEC_CONTEXT_CONTINUE: |
1542 | status = read_event_spec_context_continue_state(notit); | |
e98a2d6e PP |
1543 | break; |
1544 | case STATE_DSCOPE_EVENT_PAYLOAD_BEGIN: | |
1545 | status = read_event_payload_begin_state(notit); | |
1546 | break; | |
1547 | case STATE_DSCOPE_EVENT_PAYLOAD_CONTINUE: | |
1548 | status = read_event_payload_continue_state(notit); | |
1549 | break; | |
1550 | case STATE_EMIT_NOTIF_EVENT: | |
44c440bc | 1551 | notit->state = STATE_DSCOPE_EVENT_HEADER_BEGIN; |
e98a2d6e PP |
1552 | break; |
1553 | case STATE_SKIP_PACKET_PADDING: | |
1554 | status = skip_packet_padding_state(notit); | |
1555 | break; | |
1556 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
1557 | notit->state = STATE_SKIP_PACKET_PADDING; | |
1558 | break; | |
fdf0e7a0 PP |
1559 | default: |
1560 | BT_LOGD("Unknown CTF plugin notification iterator state: " | |
1561 | "notit-addr=%p, state=%d", notit, notit->state); | |
1562 | abort(); | |
e98a2d6e PP |
1563 | } |
1564 | ||
fdf0e7a0 PP |
1565 | BT_LOGV("Handled state: notit-addr=%p, status=%s, " |
1566 | "prev-state=%s, cur-state=%s", | |
50842bdc | 1567 | notit, bt_notif_iter_status_string(status), |
fdf0e7a0 | 1568 | state_string(state), state_string(notit->state)); |
e98a2d6e PP |
1569 | return status; |
1570 | } | |
1571 | ||
2cf1d51e JG |
1572 | /** |
1573 | * Resets the internal state of a CTF notification iterator. | |
2cf1d51e | 1574 | */ |
f42867e2 | 1575 | BT_HIDDEN |
50842bdc | 1576 | void bt_notif_iter_reset(struct bt_notif_iter *notit) |
e98a2d6e | 1577 | { |
f6ccaed9 | 1578 | BT_ASSERT(notit); |
fdf0e7a0 | 1579 | BT_LOGD("Resetting notification iterator: addr=%p", notit); |
e98a2d6e | 1580 | stack_clear(notit->stack); |
44c440bc PP |
1581 | notit->meta.sc = NULL; |
1582 | notit->meta.ec = NULL; | |
65300d60 PP |
1583 | BT_OBJECT_PUT_REF_AND_RESET(notit->packet); |
1584 | BT_OBJECT_PUT_REF_AND_RESET(notit->stream); | |
1585 | BT_OBJECT_PUT_REF_AND_RESET(notit->event_notif); | |
312c056a PP |
1586 | release_all_dscopes(notit); |
1587 | notit->cur_dscope_field = NULL; | |
1588 | ||
1589 | if (notit->packet_header_field) { | |
e5be10ef | 1590 | bt_private_packet_header_field_release(notit->packet_header_field); |
312c056a PP |
1591 | notit->packet_header_field = NULL; |
1592 | } | |
1593 | ||
1594 | if (notit->packet_context_field) { | |
e5be10ef | 1595 | bt_private_packet_context_field_release(notit->packet_context_field); |
312c056a PP |
1596 | notit->packet_context_field = NULL; |
1597 | } | |
1598 | ||
1599 | if (notit->event_header_field) { | |
e5be10ef | 1600 | bt_private_event_header_field_release(notit->event_header_field); |
312c056a PP |
1601 | notit->event_header_field = NULL; |
1602 | } | |
1603 | ||
e98a2d6e PP |
1604 | notit->buf.addr = NULL; |
1605 | notit->buf.sz = 0; | |
1606 | notit->buf.at = 0; | |
2b186c3e | 1607 | notit->buf.last_eh_at = SIZE_MAX; |
e98a2d6e PP |
1608 | notit->buf.packet_offset = 0; |
1609 | notit->state = STATE_INIT; | |
44c440bc PP |
1610 | notit->cur_exp_packet_content_size = -1; |
1611 | notit->cur_exp_packet_total_size = -1; | |
9e0c8dbb | 1612 | notit->cur_packet_offset = -1; |
44c440bc PP |
1613 | notit->cur_stream_class_id = -1; |
1614 | notit->cur_event_class_id = -1; | |
1615 | notit->cur_data_stream_id = -1; | |
f42867e2 | 1616 | notit->stream_begin_emitted = false; |
e98a2d6e PP |
1617 | } |
1618 | ||
2cf1d51e | 1619 | static |
50842bdc | 1620 | int bt_notif_iter_switch_packet(struct bt_notif_iter *notit) |
2cf1d51e JG |
1621 | { |
1622 | int ret = 0; | |
1623 | ||
115de887 PP |
1624 | /* |
1625 | * We don't put the stream class here because we need to make | |
1626 | * sure that all the packets processed by the same notification | |
1627 | * iterator refer to the same stream class (the first one). | |
1628 | */ | |
f6ccaed9 | 1629 | BT_ASSERT(notit); |
312c056a | 1630 | |
44c440bc PP |
1631 | if (notit->cur_exp_packet_total_size != -1) { |
1632 | notit->cur_packet_offset += notit->cur_exp_packet_total_size; | |
9e0c8dbb | 1633 | } |
312c056a | 1634 | |
9e0c8dbb JG |
1635 | BT_LOGV("Switching packet: notit-addr=%p, cur=%zu, " |
1636 | "packet-offset=%" PRId64, notit, notit->buf.at, | |
1637 | notit->cur_packet_offset); | |
2cf1d51e | 1638 | stack_clear(notit->stack); |
44c440bc | 1639 | notit->meta.ec = NULL; |
65300d60 PP |
1640 | BT_OBJECT_PUT_REF_AND_RESET(notit->packet); |
1641 | BT_OBJECT_PUT_REF_AND_RESET(notit->event_notif); | |
312c056a PP |
1642 | release_all_dscopes(notit); |
1643 | notit->cur_dscope_field = NULL; | |
2cf1d51e JG |
1644 | |
1645 | /* | |
1646 | * Adjust current buffer so that addr points to the beginning of the new | |
1647 | * packet. | |
1648 | */ | |
1649 | if (notit->buf.addr) { | |
1650 | size_t consumed_bytes = (size_t) (notit->buf.at / CHAR_BIT); | |
1651 | ||
1652 | /* Packets are assumed to start on a byte frontier. */ | |
1653 | if (notit->buf.at % CHAR_BIT) { | |
fdf0e7a0 PP |
1654 | BT_LOGW("Cannot switch packet: current position is not a multiple of 8: " |
1655 | "notit-addr=%p, cur=%zu", notit, notit->buf.at); | |
2cf1d51e JG |
1656 | ret = -1; |
1657 | goto end; | |
1658 | } | |
1659 | ||
1660 | notit->buf.addr += consumed_bytes; | |
1661 | notit->buf.sz -= consumed_bytes; | |
1662 | notit->buf.at = 0; | |
1663 | notit->buf.packet_offset = 0; | |
fdf0e7a0 PP |
1664 | BT_LOGV("Adjusted buffer: addr=%p, size=%zu", |
1665 | notit->buf.addr, notit->buf.sz); | |
2cf1d51e JG |
1666 | } |
1667 | ||
44c440bc PP |
1668 | notit->cur_exp_packet_content_size = -1; |
1669 | notit->cur_exp_packet_total_size = -1; | |
1670 | notit->cur_stream_class_id = -1; | |
1671 | notit->cur_event_class_id = -1; | |
1672 | notit->cur_data_stream_id = -1; | |
1673 | notit->snapshots.discarded_events = UINT64_C(-1); | |
1674 | notit->snapshots.packets = UINT64_C(-1); | |
1675 | notit->snapshots.beginning_clock = UINT64_C(-1); | |
1676 | notit->snapshots.end_clock = UINT64_C(-1); | |
fdf0e7a0 | 1677 | |
2cf1d51e JG |
1678 | end: |
1679 | return ret; | |
1680 | } | |
1681 | ||
e98a2d6e | 1682 | static |
e5be10ef | 1683 | struct bt_private_field *borrow_next_field(struct bt_notif_iter *notit) |
e98a2d6e | 1684 | { |
e5be10ef PP |
1685 | struct bt_private_field *next_field = NULL; |
1686 | struct bt_private_field *base_field; | |
1687 | struct bt_private_field_class *base_fc; | |
e98a2d6e PP |
1688 | size_t index; |
1689 | ||
f6ccaed9 | 1690 | BT_ASSERT(!stack_empty(notit->stack)); |
e98a2d6e PP |
1691 | index = stack_top(notit->stack)->index; |
1692 | base_field = stack_top(notit->stack)->base; | |
f6ccaed9 | 1693 | BT_ASSERT(base_field); |
28e6ca8b | 1694 | base_fc = bt_private_field_borrow_class(base_field); |
5cd6d0e5 | 1695 | BT_ASSERT(base_fc); |
e98a2d6e | 1696 | |
d94d92ac | 1697 | switch (bt_field_class_get_type( |
707b7d35 | 1698 | bt_private_field_class_as_field_class(base_fc))) { |
864cad70 | 1699 | case BT_FIELD_CLASS_TYPE_STRUCTURE: |
f42867e2 | 1700 | { |
44c440bc | 1701 | BT_ASSERT(index < |
5cd6d0e5 | 1702 | bt_field_class_structure_get_member_count( |
707b7d35 | 1703 | bt_private_field_class_as_field_class( |
28e6ca8b | 1704 | bt_private_field_borrow_class( |
e5be10ef PP |
1705 | base_field)))); |
1706 | next_field = | |
28e6ca8b | 1707 | bt_private_field_structure_borrow_member_field_by_index( |
e5be10ef | 1708 | base_field, index); |
e98a2d6e | 1709 | break; |
f42867e2 | 1710 | } |
864cad70 PP |
1711 | case BT_FIELD_CLASS_TYPE_STATIC_ARRAY: |
1712 | case BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY: | |
e5be10ef | 1713 | BT_ASSERT(index < bt_field_array_get_length( |
707b7d35 | 1714 | bt_private_field_as_field(base_field))); |
28e6ca8b | 1715 | next_field = bt_private_field_array_borrow_element_field_by_index( |
44c440bc | 1716 | base_field, index); |
e98a2d6e | 1717 | break; |
864cad70 | 1718 | case BT_FIELD_CLASS_TYPE_VARIANT: |
44c440bc | 1719 | BT_ASSERT(index == 0); |
28e6ca8b | 1720 | next_field = bt_private_field_variant_borrow_selected_option_field( |
44c440bc | 1721 | base_field); |
e98a2d6e PP |
1722 | break; |
1723 | default: | |
0fbb9a9f | 1724 | abort(); |
e98a2d6e PP |
1725 | } |
1726 | ||
44c440bc | 1727 | BT_ASSERT(next_field); |
e98a2d6e PP |
1728 | return next_field; |
1729 | } | |
1730 | ||
c44c3e70 | 1731 | static |
44c440bc PP |
1732 | void update_default_clock(struct bt_notif_iter *notit, uint64_t new_val, |
1733 | uint64_t new_val_size) | |
c44c3e70 | 1734 | { |
44c440bc | 1735 | uint64_t new_val_mask; |
c44c3e70 | 1736 | uint64_t cur_value_masked; |
c44c3e70 | 1737 | |
44c440bc | 1738 | BT_ASSERT(new_val_size > 0); |
c44c3e70 JG |
1739 | |
1740 | /* | |
1741 | * Special case for a 64-bit new value, which is the limit | |
1742 | * of a clock value as of this version: overwrite the | |
1743 | * current value directly. | |
1744 | */ | |
44c440bc PP |
1745 | if (new_val_size == 64) { |
1746 | notit->default_clock_val = new_val; | |
c44c3e70 JG |
1747 | goto end; |
1748 | } | |
1749 | ||
44c440bc PP |
1750 | new_val_mask = (1ULL << new_val_size) - 1; |
1751 | cur_value_masked = notit->default_clock_val & new_val_mask; | |
c44c3e70 | 1752 | |
44c440bc | 1753 | if (new_val < cur_value_masked) { |
c44c3e70 JG |
1754 | /* |
1755 | * It looks like a wrap happened on the number of bits | |
1756 | * of the requested new value. Assume that the clock | |
1757 | * value wrapped only one time. | |
1758 | */ | |
44c440bc | 1759 | notit->default_clock_val += new_val_mask + 1; |
c44c3e70 JG |
1760 | } |
1761 | ||
1762 | /* Clear the low bits of the current clock value. */ | |
44c440bc | 1763 | notit->default_clock_val &= ~new_val_mask; |
c44c3e70 JG |
1764 | |
1765 | /* Set the low bits of the current clock value. */ | |
44c440bc | 1766 | notit->default_clock_val |= new_val; |
d1e46835 | 1767 | |
c44c3e70 | 1768 | end: |
44c440bc PP |
1769 | BT_LOGV("Updated default clock's value from integer field's value: " |
1770 | "value=%" PRIu64, notit->default_clock_val); | |
c44c3e70 JG |
1771 | } |
1772 | ||
1773 | static | |
5cd6d0e5 PP |
1774 | enum bt_bfcr_status bfcr_unsigned_int_cb(uint64_t value, |
1775 | struct ctf_field_class *fc, void *data) | |
c44c3e70 | 1776 | { |
44c440bc | 1777 | struct bt_notif_iter *notit = data; |
5cd6d0e5 | 1778 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
e5be10ef | 1779 | struct bt_private_field *field = NULL; |
5cd6d0e5 | 1780 | struct ctf_field_class_int *int_fc = (void *) fc; |
c44c3e70 | 1781 | |
5cd6d0e5 PP |
1782 | BT_LOGV("Unsigned integer function called from BFCR: " |
1783 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
1784 | "fc-type=%d, fc-in-ir=%d, value=%" PRIu64, |
1785 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
312c056a | 1786 | |
5cd6d0e5 | 1787 | if (likely(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE)) { |
44c440bc | 1788 | goto update_def_clock; |
c44c3e70 JG |
1789 | } |
1790 | ||
5cd6d0e5 PP |
1791 | switch (int_fc->meaning) { |
1792 | case CTF_FIELD_CLASS_MEANING_EVENT_CLASS_ID: | |
44c440bc PP |
1793 | notit->cur_event_class_id = value; |
1794 | break; | |
5cd6d0e5 | 1795 | case CTF_FIELD_CLASS_MEANING_DATA_STREAM_ID: |
44c440bc PP |
1796 | notit->cur_data_stream_id = value; |
1797 | break; | |
5cd6d0e5 | 1798 | case CTF_FIELD_CLASS_MEANING_PACKET_BEGINNING_TIME: |
44c440bc PP |
1799 | notit->snapshots.beginning_clock = value; |
1800 | break; | |
5cd6d0e5 | 1801 | case CTF_FIELD_CLASS_MEANING_PACKET_END_TIME: |
44c440bc PP |
1802 | notit->snapshots.end_clock = value; |
1803 | break; | |
5cd6d0e5 | 1804 | case CTF_FIELD_CLASS_MEANING_STREAM_CLASS_ID: |
44c440bc PP |
1805 | notit->cur_stream_class_id = value; |
1806 | break; | |
5cd6d0e5 | 1807 | case CTF_FIELD_CLASS_MEANING_MAGIC: |
44c440bc PP |
1808 | if (value != 0xc1fc1fc1) { |
1809 | BT_LOGW("Invalid CTF magic number: notit-addr=%p, " | |
1810 | "magic=%" PRIx64, notit, value); | |
5cd6d0e5 | 1811 | status = BT_BFCR_STATUS_ERROR; |
c44c3e70 JG |
1812 | goto end; |
1813 | } | |
fdf0e7a0 | 1814 | |
44c440bc | 1815 | break; |
5cd6d0e5 | 1816 | case CTF_FIELD_CLASS_MEANING_PACKET_COUNTER_SNAPSHOT: |
44c440bc PP |
1817 | notit->snapshots.packets = value; |
1818 | break; | |
5cd6d0e5 | 1819 | case CTF_FIELD_CLASS_MEANING_DISC_EV_REC_COUNTER_SNAPSHOT: |
44c440bc PP |
1820 | notit->snapshots.discarded_events = value; |
1821 | break; | |
5cd6d0e5 | 1822 | case CTF_FIELD_CLASS_MEANING_EXP_PACKET_TOTAL_SIZE: |
44c440bc PP |
1823 | notit->cur_exp_packet_total_size = value; |
1824 | break; | |
5cd6d0e5 | 1825 | case CTF_FIELD_CLASS_MEANING_EXP_PACKET_CONTENT_SIZE: |
44c440bc PP |
1826 | notit->cur_exp_packet_content_size = value; |
1827 | break; | |
1828 | default: | |
1829 | abort(); | |
c44c3e70 JG |
1830 | } |
1831 | ||
44c440bc | 1832 | update_def_clock: |
5cd6d0e5 PP |
1833 | if (unlikely(int_fc->mapped_clock_class)) { |
1834 | update_default_clock(notit, value, int_fc->base.size); | |
44c440bc | 1835 | } |
c44c3e70 | 1836 | |
5cd6d0e5 | 1837 | if (unlikely(int_fc->storing_index >= 0)) { |
44c440bc | 1838 | g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 1839 | (uint64_t) int_fc->storing_index) = value; |
44c440bc | 1840 | } |
e98a2d6e | 1841 | |
5cd6d0e5 | 1842 | if (unlikely(!fc->in_ir)) { |
312c056a | 1843 | goto end; |
e98a2d6e PP |
1844 | } |
1845 | ||
44c440bc PP |
1846 | field = borrow_next_field(notit); |
1847 | BT_ASSERT(field); | |
28e6ca8b | 1848 | BT_ASSERT(bt_private_field_borrow_class(field) == fc->ir_fc); |
e5be10ef | 1849 | BT_ASSERT(bt_field_get_class_type( |
707b7d35 | 1850 | bt_private_field_as_field(field)) == |
e5be10ef | 1851 | BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER || |
707b7d35 | 1852 | bt_field_get_class_type(bt_private_field_as_field(field)) == |
e5be10ef PP |
1853 | BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION); |
1854 | bt_private_field_unsigned_integer_set_value(field, value); | |
e98a2d6e | 1855 | stack_top(notit->stack)->index++; |
fdf0e7a0 | 1856 | |
312c056a | 1857 | end: |
e98a2d6e PP |
1858 | return status; |
1859 | } | |
1860 | ||
5f870343 | 1861 | static |
5cd6d0e5 PP |
1862 | enum bt_bfcr_status bfcr_unsigned_int_char_cb(uint64_t value, |
1863 | struct ctf_field_class *fc, void *data) | |
5f870343 | 1864 | { |
44c440bc | 1865 | int ret; |
50842bdc | 1866 | struct bt_notif_iter *notit = data; |
5cd6d0e5 | 1867 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
e5be10ef | 1868 | struct bt_private_field *string_field = NULL; |
5cd6d0e5 | 1869 | struct ctf_field_class_int *int_fc = (void *) fc; |
44c440bc | 1870 | char str[2] = {'\0', '\0'}; |
5f870343 | 1871 | |
5cd6d0e5 PP |
1872 | BT_LOGV("Unsigned integer character function called from BFCR: " |
1873 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
1874 | "fc-type=%d, fc-in-ir=%d, value=%" PRIu64, |
1875 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
5cd6d0e5 PP |
1876 | BT_ASSERT(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE); |
1877 | BT_ASSERT(!int_fc->mapped_clock_class); | |
1878 | BT_ASSERT(int_fc->storing_index < 0); | |
312c056a | 1879 | |
5cd6d0e5 | 1880 | if (unlikely(!fc->in_ir)) { |
44c440bc PP |
1881 | goto end; |
1882 | } | |
5f870343 | 1883 | |
44c440bc | 1884 | if (notit->done_filling_string) { |
5f870343 JG |
1885 | goto end; |
1886 | } | |
1887 | ||
44c440bc PP |
1888 | if (value == 0) { |
1889 | notit->done_filling_string = true; | |
5f870343 JG |
1890 | goto end; |
1891 | } | |
1892 | ||
44c440bc | 1893 | string_field = stack_top(notit->stack)->base; |
e5be10ef | 1894 | BT_ASSERT(bt_field_get_class_type( |
707b7d35 | 1895 | bt_private_field_as_field(string_field)) == |
e5be10ef | 1896 | BT_FIELD_CLASS_TYPE_STRING); |
44c440bc PP |
1897 | |
1898 | /* Append character */ | |
1899 | str[0] = (char) value; | |
e5be10ef | 1900 | ret = bt_private_field_string_append_with_length(string_field, str, 1); |
44c440bc PP |
1901 | if (ret) { |
1902 | BT_LOGE("Cannot append character to string field's value: " | |
1903 | "notit-addr=%p, field-addr=%p, ret=%d", | |
1904 | notit, string_field, ret); | |
5cd6d0e5 | 1905 | status = BT_BFCR_STATUS_ERROR; |
44c440bc PP |
1906 | goto end; |
1907 | } | |
312c056a | 1908 | |
5f870343 JG |
1909 | end: |
1910 | return status; | |
1911 | } | |
1912 | ||
1913 | static | |
5cd6d0e5 PP |
1914 | enum bt_bfcr_status bfcr_signed_int_cb(int64_t value, |
1915 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 1916 | { |
5cd6d0e5 | 1917 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
e5be10ef | 1918 | struct bt_private_field *field = NULL; |
50842bdc | 1919 | struct bt_notif_iter *notit = data; |
5cd6d0e5 | 1920 | struct ctf_field_class_int *int_fc = (void *) fc; |
e98a2d6e | 1921 | |
5cd6d0e5 PP |
1922 | BT_LOGV("Signed integer function called from BFCR: " |
1923 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
1924 | "fc-type=%d, fc-in-ir=%d, value=%" PRId64, |
1925 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
5cd6d0e5 | 1926 | BT_ASSERT(int_fc->meaning == CTF_FIELD_CLASS_MEANING_NONE); |
44c440bc | 1927 | |
5cd6d0e5 | 1928 | if (unlikely(int_fc->storing_index >= 0)) { |
44c440bc | 1929 | g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 1930 | (uint64_t) int_fc->storing_index) = (uint64_t) value; |
44c440bc PP |
1931 | } |
1932 | ||
5cd6d0e5 | 1933 | if (unlikely(!fc->in_ir)) { |
312c056a | 1934 | goto end; |
e98a2d6e PP |
1935 | } |
1936 | ||
44c440bc PP |
1937 | field = borrow_next_field(notit); |
1938 | BT_ASSERT(field); | |
28e6ca8b | 1939 | BT_ASSERT(bt_private_field_borrow_class(field) == fc->ir_fc); |
e5be10ef | 1940 | BT_ASSERT(bt_field_get_class_type( |
707b7d35 | 1941 | bt_private_field_as_field(field)) == |
e5be10ef | 1942 | BT_FIELD_CLASS_TYPE_SIGNED_INTEGER || |
707b7d35 | 1943 | bt_field_get_class_type(bt_private_field_as_field(field)) == |
e5be10ef PP |
1944 | BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION); |
1945 | bt_private_field_signed_integer_set_value(field, value); | |
e98a2d6e | 1946 | stack_top(notit->stack)->index++; |
fdf0e7a0 | 1947 | |
312c056a | 1948 | end: |
e98a2d6e PP |
1949 | return status; |
1950 | } | |
1951 | ||
1952 | static | |
5cd6d0e5 PP |
1953 | enum bt_bfcr_status bfcr_floating_point_cb(double value, |
1954 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 1955 | { |
5cd6d0e5 | 1956 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
e5be10ef | 1957 | struct bt_private_field *field = NULL; |
50842bdc | 1958 | struct bt_notif_iter *notit = data; |
e98a2d6e | 1959 | |
5cd6d0e5 PP |
1960 | BT_LOGV("Floating point number function called from BFCR: " |
1961 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
1962 | "fc-type=%d, fc-in-ir=%d, value=%f", |
1963 | notit, notit->bfcr, fc, fc->type, fc->in_ir, value); | |
5cd6d0e5 | 1964 | BT_ASSERT(fc->in_ir); |
312c056a | 1965 | field = borrow_next_field(notit); |
44c440bc | 1966 | BT_ASSERT(field); |
28e6ca8b | 1967 | BT_ASSERT(bt_private_field_borrow_class(field) == fc->ir_fc); |
e5be10ef | 1968 | BT_ASSERT(bt_field_get_class_type( |
707b7d35 | 1969 | bt_private_field_as_field(field)) == |
e5be10ef PP |
1970 | BT_FIELD_CLASS_TYPE_REAL); |
1971 | bt_private_field_real_set_value(field, value); | |
e98a2d6e | 1972 | stack_top(notit->stack)->index++; |
e98a2d6e PP |
1973 | return status; |
1974 | } | |
1975 | ||
1976 | static | |
5cd6d0e5 PP |
1977 | enum bt_bfcr_status bfcr_string_begin_cb( |
1978 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 1979 | { |
e5be10ef | 1980 | struct bt_private_field *field = NULL; |
50842bdc | 1981 | struct bt_notif_iter *notit = data; |
e98a2d6e PP |
1982 | int ret; |
1983 | ||
5cd6d0e5 PP |
1984 | BT_LOGV("String (beginning) function called from BFCR: " |
1985 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
1986 | "fc-type=%d, fc-in-ir=%d", |
1987 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
e98a2d6e | 1988 | |
5cd6d0e5 | 1989 | BT_ASSERT(fc->in_ir); |
44c440bc PP |
1990 | field = borrow_next_field(notit); |
1991 | BT_ASSERT(field); | |
28e6ca8b | 1992 | BT_ASSERT(bt_private_field_borrow_class(field) == fc->ir_fc); |
e5be10ef | 1993 | BT_ASSERT(bt_field_get_class_type( |
707b7d35 | 1994 | bt_private_field_as_field(field)) == |
e5be10ef PP |
1995 | BT_FIELD_CLASS_TYPE_STRING); |
1996 | ret = bt_private_field_string_clear(field); | |
312c056a PP |
1997 | BT_ASSERT(ret == 0); |
1998 | ||
e98a2d6e | 1999 | /* |
5cd6d0e5 PP |
2000 | * Push on stack. Not a compound class per se, but we know that |
2001 | * only bfcr_string_cb() may be called between this call and a | |
2002 | * subsequent call to bfcr_string_end_cb(). | |
e98a2d6e | 2003 | */ |
44c440bc | 2004 | stack_push(notit->stack, field); |
5cd6d0e5 | 2005 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2006 | } |
2007 | ||
2008 | static | |
5cd6d0e5 PP |
2009 | enum bt_bfcr_status bfcr_string_cb(const char *value, |
2010 | size_t len, struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2011 | { |
5cd6d0e5 | 2012 | enum bt_bfcr_status status = BT_BFCR_STATUS_OK; |
e5be10ef | 2013 | struct bt_private_field *field = NULL; |
50842bdc | 2014 | struct bt_notif_iter *notit = data; |
e98a2d6e PP |
2015 | int ret; |
2016 | ||
5cd6d0e5 PP |
2017 | BT_LOGV("String (substring) function called from BFCR: " |
2018 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2019 | "fc-type=%d, fc-in-ir=%d, string-length=%zu", |
2020 | notit, notit->bfcr, fc, fc->type, fc->in_ir, | |
fdf0e7a0 | 2021 | len); |
5cd6d0e5 | 2022 | BT_ASSERT(fc->in_ir); |
e98a2d6e | 2023 | field = stack_top(notit->stack)->base; |
f6ccaed9 | 2024 | BT_ASSERT(field); |
e98a2d6e | 2025 | |
312c056a | 2026 | /* Append current substring */ |
e5be10ef | 2027 | ret = bt_private_field_string_append_with_length(field, value, len); |
e98a2d6e | 2028 | if (ret) { |
fdf0e7a0 PP |
2029 | BT_LOGE("Cannot append substring to string field's value: " |
2030 | "notit-addr=%p, field-addr=%p, string-length=%zu, " | |
2031 | "ret=%d", notit, field, len, ret); | |
5cd6d0e5 | 2032 | status = BT_BFCR_STATUS_ERROR; |
e98a2d6e PP |
2033 | goto end; |
2034 | } | |
2035 | ||
2036 | end: | |
2037 | return status; | |
2038 | } | |
2039 | ||
2040 | static | |
5cd6d0e5 PP |
2041 | enum bt_bfcr_status bfcr_string_end_cb( |
2042 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2043 | { |
50842bdc | 2044 | struct bt_notif_iter *notit = data; |
e98a2d6e | 2045 | |
5cd6d0e5 PP |
2046 | BT_LOGV("String (end) function called from BFCR: " |
2047 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2048 | "fc-type=%d, fc-in-ir=%d", |
2049 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
5cd6d0e5 | 2050 | BT_ASSERT(fc->in_ir); |
fdf0e7a0 | 2051 | |
e98a2d6e PP |
2052 | /* Pop string field */ |
2053 | stack_pop(notit->stack); | |
2054 | ||
2055 | /* Go to next field */ | |
2056 | stack_top(notit->stack)->index++; | |
5cd6d0e5 | 2057 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2058 | } |
2059 | ||
5cd6d0e5 PP |
2060 | enum bt_bfcr_status bfcr_compound_begin_cb( |
2061 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2062 | { |
50842bdc | 2063 | struct bt_notif_iter *notit = data; |
e5be10ef | 2064 | struct bt_private_field *field; |
e98a2d6e | 2065 | |
5cd6d0e5 PP |
2066 | BT_LOGV("Compound (beginning) function called from BFCR: " |
2067 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2068 | "fc-type=%d, fc-in-ir=%d", |
2069 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
44c440bc | 2070 | |
5cd6d0e5 | 2071 | if (!fc->in_ir) { |
44c440bc PP |
2072 | goto end; |
2073 | } | |
fdf0e7a0 | 2074 | |
312c056a | 2075 | /* Borrow field */ |
e98a2d6e | 2076 | if (stack_empty(notit->stack)) { |
312c056a PP |
2077 | /* Root: already set by read_dscope_begin_state() */ |
2078 | field = notit->cur_dscope_field; | |
e98a2d6e | 2079 | } else { |
312c056a | 2080 | field = borrow_next_field(notit); |
44c440bc | 2081 | BT_ASSERT(field); |
e98a2d6e PP |
2082 | } |
2083 | ||
2084 | /* Push field */ | |
f6ccaed9 | 2085 | BT_ASSERT(field); |
28e6ca8b | 2086 | BT_ASSERT(bt_private_field_borrow_class(field) == fc->ir_fc); |
44c440bc PP |
2087 | stack_push(notit->stack, field); |
2088 | ||
2089 | /* | |
5cd6d0e5 | 2090 | * Change BFCR "unsigned int" callback if it's a text |
44c440bc PP |
2091 | * array/sequence. |
2092 | */ | |
864cad70 PP |
2093 | if (fc->type == CTF_FIELD_CLASS_TYPE_ARRAY || |
2094 | fc->type == CTF_FIELD_CLASS_TYPE_SEQUENCE) { | |
5cd6d0e5 | 2095 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
44c440bc | 2096 | |
5cd6d0e5 | 2097 | if (array_fc->is_text) { |
44c440bc PP |
2098 | int ret; |
2099 | ||
e5be10ef | 2100 | BT_ASSERT(bt_field_get_class_type( |
707b7d35 | 2101 | bt_private_field_as_field(field)) == |
864cad70 | 2102 | BT_FIELD_CLASS_TYPE_STRING); |
44c440bc | 2103 | notit->done_filling_string = false; |
e5be10ef | 2104 | ret = bt_private_field_string_clear(field); |
44c440bc | 2105 | BT_ASSERT(ret == 0); |
5cd6d0e5 PP |
2106 | bt_bfcr_set_unsigned_int_cb(notit->bfcr, |
2107 | bfcr_unsigned_int_char_cb); | |
44c440bc | 2108 | } |
e98a2d6e PP |
2109 | } |
2110 | ||
2111 | end: | |
5cd6d0e5 | 2112 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2113 | } |
2114 | ||
5cd6d0e5 PP |
2115 | enum bt_bfcr_status bfcr_compound_end_cb( |
2116 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2117 | { |
50842bdc | 2118 | struct bt_notif_iter *notit = data; |
e98a2d6e | 2119 | |
5cd6d0e5 PP |
2120 | BT_LOGV("Compound (end) function called from BFCR: " |
2121 | "notit-addr=%p, bfcr-addr=%p, fc-addr=%p, " | |
864cad70 PP |
2122 | "fc-type=%d, fc-in-ir=%d", |
2123 | notit, notit->bfcr, fc, fc->type, fc->in_ir); | |
e98a2d6e | 2124 | |
5cd6d0e5 | 2125 | if (!fc->in_ir) { |
e98a2d6e PP |
2126 | goto end; |
2127 | } | |
2128 | ||
44c440bc | 2129 | BT_ASSERT(!stack_empty(notit->stack)); |
28e6ca8b | 2130 | BT_ASSERT(bt_private_field_borrow_class(stack_top(notit->stack)->base) == |
5cd6d0e5 | 2131 | fc->ir_fc); |
e98a2d6e | 2132 | |
44c440bc | 2133 | /* |
5cd6d0e5 | 2134 | * Reset BFCR "unsigned int" callback if it's a text |
44c440bc PP |
2135 | * array/sequence. |
2136 | */ | |
864cad70 PP |
2137 | if (fc->type == CTF_FIELD_CLASS_TYPE_ARRAY || |
2138 | fc->type == CTF_FIELD_CLASS_TYPE_SEQUENCE) { | |
5cd6d0e5 | 2139 | struct ctf_field_class_array_base *array_fc = (void *) fc; |
44c440bc | 2140 | |
5cd6d0e5 | 2141 | if (array_fc->is_text) { |
864cad70 | 2142 | BT_ASSERT(bt_field_get_class_type( |
707b7d35 | 2143 | bt_private_field_as_field( |
e5be10ef PP |
2144 | stack_top(notit->stack)->base)) == |
2145 | BT_FIELD_CLASS_TYPE_STRING); | |
5cd6d0e5 PP |
2146 | bt_bfcr_set_unsigned_int_cb(notit->bfcr, |
2147 | bfcr_unsigned_int_cb); | |
e98a2d6e | 2148 | } |
44c440bc | 2149 | } |
e98a2d6e | 2150 | |
44c440bc PP |
2151 | /* Pop stack */ |
2152 | stack_pop(notit->stack); | |
e98a2d6e | 2153 | |
44c440bc PP |
2154 | /* If the stack is not empty, increment the base's index */ |
2155 | if (!stack_empty(notit->stack)) { | |
2156 | stack_top(notit->stack)->index++; | |
e98a2d6e PP |
2157 | } |
2158 | ||
2159 | end: | |
5cd6d0e5 | 2160 | return BT_BFCR_STATUS_OK; |
e98a2d6e PP |
2161 | } |
2162 | ||
2163 | static | |
5cd6d0e5 | 2164 | int64_t bfcr_get_sequence_length_cb(struct ctf_field_class *fc, void *data) |
e98a2d6e | 2165 | { |
e5be10ef | 2166 | struct bt_private_field *seq_field; |
50842bdc | 2167 | struct bt_notif_iter *notit = data; |
5cd6d0e5 | 2168 | struct ctf_field_class_sequence *seq_fc = (void *) fc; |
44c440bc PP |
2169 | int64_t length = -1; |
2170 | int ret; | |
e98a2d6e | 2171 | |
44c440bc | 2172 | length = (uint64_t) g_array_index(notit->stored_values, uint64_t, |
5cd6d0e5 | 2173 | seq_fc->stored_length_index); |
fdf0e7a0 | 2174 | seq_field = stack_top(notit->stack)->base; |
44c440bc | 2175 | BT_ASSERT(seq_field); |
e5be10ef | 2176 | ret = bt_private_field_dynamic_array_set_length(seq_field, (uint64_t) length); |
44c440bc PP |
2177 | if (ret) { |
2178 | BT_LOGE("Cannot set dynamic array field's length field: " | |
2179 | "notit-addr=%p, field-addr=%p, " | |
2180 | "length=%" PRIu64, notit, seq_field, length); | |
2cf1d51e | 2181 | } |
fdf0e7a0 | 2182 | |
44c440bc | 2183 | return length; |
e98a2d6e PP |
2184 | } |
2185 | ||
2186 | static | |
5cd6d0e5 PP |
2187 | struct ctf_field_class *bfcr_borrow_variant_selected_field_class_cb( |
2188 | struct ctf_field_class *fc, void *data) | |
e98a2d6e | 2189 | { |
312c056a | 2190 | int ret; |
44c440bc PP |
2191 | uint64_t i; |
2192 | int64_t option_index = -1; | |
50842bdc | 2193 | struct bt_notif_iter *notit = data; |
5cd6d0e5 PP |
2194 | struct ctf_field_class_variant *var_fc = (void *) fc; |
2195 | struct ctf_named_field_class *selected_option = NULL; | |
2196 | struct ctf_field_class *ret_fc = NULL; | |
44c440bc PP |
2197 | union { |
2198 | uint64_t u; | |
2199 | int64_t i; | |
2200 | } tag; | |
2201 | ||
2202 | /* Get variant's tag */ | |
2203 | tag.u = g_array_index(notit->stored_values, uint64_t, | |
5cd6d0e5 | 2204 | var_fc->stored_tag_index); |
e98a2d6e PP |
2205 | |
2206 | /* | |
44c440bc | 2207 | * Check each range to find the selected option's index. |
e98a2d6e | 2208 | */ |
5cd6d0e5 PP |
2209 | if (var_fc->tag_fc->base.is_signed) { |
2210 | for (i = 0; i < var_fc->ranges->len; i++) { | |
2211 | struct ctf_field_class_variant_range *range = | |
2212 | ctf_field_class_variant_borrow_range_by_index( | |
2213 | var_fc, i); | |
44c440bc PP |
2214 | |
2215 | if (tag.i >= range->range.lower.i && | |
2216 | tag.i <= range->range.upper.i) { | |
2217 | option_index = (int64_t) range->option_index; | |
2218 | break; | |
2219 | } | |
2220 | } | |
312c056a | 2221 | } else { |
5cd6d0e5 PP |
2222 | for (i = 0; i < var_fc->ranges->len; i++) { |
2223 | struct ctf_field_class_variant_range *range = | |
2224 | ctf_field_class_variant_borrow_range_by_index( | |
2225 | var_fc, i); | |
44c440bc PP |
2226 | |
2227 | if (tag.u >= range->range.lower.u && | |
2228 | tag.u <= range->range.upper.u) { | |
2229 | option_index = (int64_t) range->option_index; | |
2230 | break; | |
2231 | } | |
2232 | } | |
312c056a PP |
2233 | } |
2234 | ||
44c440bc | 2235 | if (option_index < 0) { |
5cd6d0e5 PP |
2236 | BT_LOGW("Cannot find variant field class's option: " |
2237 | "notit-addr=%p, var-fc-addr=%p, u-tag=%" PRIu64 ", " | |
2238 | "i-tag=%" PRId64, notit, var_fc, tag.u, tag.i); | |
e98a2d6e PP |
2239 | goto end; |
2240 | } | |
2241 | ||
5cd6d0e5 PP |
2242 | selected_option = ctf_field_class_variant_borrow_option_by_index( |
2243 | var_fc, (uint64_t) option_index); | |
e98a2d6e | 2244 | |
5cd6d0e5 | 2245 | if (selected_option->fc->in_ir) { |
e5be10ef | 2246 | struct bt_private_field *var_field = stack_top(notit->stack)->base; |
1556a1af | 2247 | |
28e6ca8b | 2248 | ret = bt_private_field_variant_select_option_field( |
e5be10ef | 2249 | var_field, option_index); |
e22b45d0 | 2250 | if (ret) { |
44c440bc PP |
2251 | BT_LOGW("Cannot select variant field's option field: " |
2252 | "notit-addr=%p, var-field-addr=%p, " | |
2253 | "opt-index=%" PRId64, notit, var_field, | |
2254 | option_index); | |
1556a1af JG |
2255 | goto end; |
2256 | } | |
af87daef PP |
2257 | } |
2258 | ||
5cd6d0e5 | 2259 | ret_fc = selected_option->fc; |
e22b45d0 | 2260 | |
af87daef | 2261 | end: |
5cd6d0e5 | 2262 | return ret_fc; |
44c440bc PP |
2263 | } |
2264 | ||
2265 | static | |
2266 | void set_event_default_clock_value(struct bt_notif_iter *notit) | |
2267 | { | |
e5be10ef | 2268 | struct bt_private_event *event = |
28e6ca8b | 2269 | bt_private_notification_event_borrow_event( |
e5be10ef | 2270 | notit->event_notif); |
707b7d35 | 2271 | struct bt_stream_class *sc = bt_private_stream_class_as_stream_class( |
e5be10ef | 2272 | notit->meta.sc->ir_sc); |
44c440bc PP |
2273 | |
2274 | BT_ASSERT(event); | |
2275 | ||
2276 | if (bt_stream_class_borrow_default_clock_class(sc)) { | |
140e6d94 | 2277 | bt_private_event_set_default_clock_value(event, |
44c440bc | 2278 | notit->default_clock_val); |
44c440bc | 2279 | } |
af87daef PP |
2280 | } |
2281 | ||
f42867e2 PP |
2282 | static |
2283 | void notify_new_stream(struct bt_notif_iter *notit, | |
e5be10ef | 2284 | struct bt_private_notification **notification) |
f42867e2 | 2285 | { |
312c056a | 2286 | enum bt_notif_iter_status status; |
e5be10ef | 2287 | struct bt_private_notification *ret = NULL; |
f42867e2 | 2288 | |
312c056a PP |
2289 | status = set_current_stream(notit); |
2290 | if (status != BT_NOTIF_ITER_STATUS_OK) { | |
65300d60 | 2291 | BT_OBJECT_PUT_REF_AND_RESET(ret); |
f42867e2 PP |
2292 | goto end; |
2293 | } | |
2294 | ||
2295 | BT_ASSERT(notit->stream); | |
f0010051 | 2296 | BT_ASSERT(notit->notif_iter); |
e5be10ef | 2297 | ret = bt_private_notification_stream_begin_create(notit->notif_iter, |
f0010051 | 2298 | notit->stream); |
f42867e2 PP |
2299 | if (!ret) { |
2300 | BT_LOGE("Cannot create stream beginning notification: " | |
2301 | "notit-addr=%p, stream-addr=%p", | |
2302 | notit, notit->stream); | |
2303 | return; | |
2304 | } | |
2305 | ||
2306 | end: | |
2307 | *notification = ret; | |
2308 | } | |
2309 | ||
2310 | static | |
2311 | void notify_end_of_stream(struct bt_notif_iter *notit, | |
e5be10ef | 2312 | struct bt_private_notification **notification) |
f42867e2 | 2313 | { |
e5be10ef | 2314 | struct bt_private_notification *ret; |
f42867e2 PP |
2315 | |
2316 | if (!notit->stream) { | |
2317 | BT_LOGE("Cannot create stream for stream notification: " | |
2318 | "notit-addr=%p", notit); | |
2319 | return; | |
2320 | } | |
2321 | ||
f0010051 | 2322 | BT_ASSERT(notit->notif_iter); |
e5be10ef | 2323 | ret = bt_private_notification_stream_end_create(notit->notif_iter, |
f0010051 | 2324 | notit->stream); |
f42867e2 PP |
2325 | if (!ret) { |
2326 | BT_LOGE("Cannot create stream beginning notification: " | |
2327 | "notit-addr=%p, stream-addr=%p", | |
2328 | notit, notit->stream); | |
2329 | return; | |
2330 | } | |
2331 | *notification = ret; | |
2332 | } | |
2333 | ||
78586d8a | 2334 | static |
50842bdc | 2335 | void notify_new_packet(struct bt_notif_iter *notit, |
e5be10ef | 2336 | struct bt_private_notification **notification) |
e98a2d6e | 2337 | { |
312c056a PP |
2338 | int ret; |
2339 | enum bt_notif_iter_status status; | |
e5be10ef | 2340 | struct bt_private_notification *notif = NULL; |
44c440bc | 2341 | struct bt_stream_class *sc; |
e98a2d6e | 2342 | |
312c056a PP |
2343 | status = set_current_packet(notit); |
2344 | if (status != BT_NOTIF_ITER_STATUS_OK) { | |
2345 | goto end; | |
e98a2d6e PP |
2346 | } |
2347 | ||
312c056a | 2348 | BT_ASSERT(notit->packet); |
707b7d35 | 2349 | sc = bt_private_stream_class_as_stream_class(notit->meta.sc->ir_sc); |
44c440bc PP |
2350 | BT_ASSERT(sc); |
2351 | ||
2352 | if (bt_stream_class_packets_have_discarded_event_counter_snapshot(sc)) { | |
2353 | BT_ASSERT(notit->snapshots.discarded_events != UINT64_C(-1)); | |
140e6d94 | 2354 | bt_private_packet_set_discarded_event_counter_snapshot( |
44c440bc | 2355 | notit->packet, notit->snapshots.discarded_events); |
44c440bc PP |
2356 | } |
2357 | ||
2358 | if (bt_stream_class_packets_have_packet_counter_snapshot(sc)) { | |
2359 | BT_ASSERT(notit->snapshots.packets != UINT64_C(-1)); | |
140e6d94 | 2360 | bt_private_packet_set_packet_counter_snapshot( |
44c440bc | 2361 | notit->packet, notit->snapshots.packets); |
44c440bc PP |
2362 | } |
2363 | ||
2364 | if (bt_stream_class_packets_have_default_beginning_clock_value(sc)) { | |
2365 | BT_ASSERT(notit->snapshots.beginning_clock != UINT64_C(-1)); | |
140e6d94 | 2366 | bt_private_packet_set_default_beginning_clock_value( |
44c440bc | 2367 | notit->packet, notit->snapshots.beginning_clock); |
44c440bc PP |
2368 | } |
2369 | ||
2370 | if (bt_stream_class_packets_have_default_end_clock_value(sc)) { | |
2371 | BT_ASSERT(notit->snapshots.end_clock != UINT64_C(-1)); | |
140e6d94 | 2372 | bt_private_packet_set_default_end_clock_value( |
44c440bc | 2373 | notit->packet, notit->snapshots.end_clock); |
44c440bc | 2374 | } |
312c056a PP |
2375 | |
2376 | if (notit->packet_header_field) { | |
28e6ca8b | 2377 | ret = bt_private_packet_move_header_field( |
e5be10ef | 2378 | notit->packet, notit->packet_header_field); |
312c056a PP |
2379 | if (ret) { |
2380 | goto end; | |
2381 | } | |
2382 | ||
2383 | notit->packet_header_field = NULL; | |
2384 | ||
2385 | /* | |
2386 | * At this point notit->dscopes.trace_packet_header has | |
2387 | * the same value as the packet header field within | |
2388 | * notit->packet. | |
2389 | */ | |
28e6ca8b | 2390 | BT_ASSERT(bt_private_packet_borrow_header_field( |
e5be10ef | 2391 | notit->packet) == |
312c056a PP |
2392 | notit->dscopes.trace_packet_header); |
2393 | } | |
2394 | ||
2395 | if (notit->packet_context_field) { | |
28e6ca8b | 2396 | ret = bt_private_packet_move_context_field( |
e5be10ef | 2397 | notit->packet, notit->packet_context_field); |
312c056a PP |
2398 | if (ret) { |
2399 | goto end; | |
2400 | } | |
2401 | ||
2402 | notit->packet_context_field = NULL; | |
2403 | ||
2404 | /* | |
2405 | * At this point notit->dscopes.trace_packet_header has | |
2406 | * the same value as the packet header field within | |
2407 | * notit->packet. | |
2408 | */ | |
28e6ca8b | 2409 | BT_ASSERT(bt_private_packet_borrow_context_field( |
e5be10ef | 2410 | notit->packet) == |
312c056a PP |
2411 | notit->dscopes.stream_packet_context); |
2412 | } | |
2413 | ||
f0010051 | 2414 | BT_ASSERT(notit->notif_iter); |
e5be10ef | 2415 | notif = bt_private_notification_packet_begin_create(notit->notif_iter, |
5c563278 | 2416 | notit->packet); |
312c056a | 2417 | if (!notif) { |
fdf0e7a0 PP |
2418 | BT_LOGE("Cannot create packet beginning notification: " |
2419 | "notit-addr=%p, packet-addr=%p", | |
2420 | notit, notit->packet); | |
e22b45d0 | 2421 | goto end; |
78586d8a | 2422 | } |
312c056a | 2423 | |
312c056a | 2424 | *notification = notif; |
e22b45d0 PP |
2425 | |
2426 | end: | |
2427 | return; | |
e98a2d6e PP |
2428 | } |
2429 | ||
78586d8a | 2430 | static |
50842bdc | 2431 | void notify_end_of_packet(struct bt_notif_iter *notit, |
e5be10ef | 2432 | struct bt_private_notification **notification) |
e98a2d6e | 2433 | { |
e5be10ef | 2434 | struct bt_private_notification *notif; |
e98a2d6e | 2435 | |
e98a2d6e | 2436 | if (!notit->packet) { |
78586d8a | 2437 | return; |
e98a2d6e PP |
2438 | } |
2439 | ||
44c440bc PP |
2440 | /* Update default clock from packet's end time */ |
2441 | if (notit->snapshots.end_clock != UINT64_C(-1)) { | |
2442 | notit->default_clock_val = notit->snapshots.end_clock; | |
2443 | } | |
2444 | ||
f0010051 | 2445 | BT_ASSERT(notit->notif_iter); |
e5be10ef | 2446 | notif = bt_private_notification_packet_end_create(notit->notif_iter, |
f0010051 | 2447 | notit->packet); |
312c056a | 2448 | if (!notif) { |
fdf0e7a0 PP |
2449 | BT_LOGE("Cannot create packet end notification: " |
2450 | "notit-addr=%p, packet-addr=%p", | |
2451 | notit, notit->packet); | |
78586d8a | 2452 | return; |
ccf82993 | 2453 | |
78586d8a | 2454 | } |
e98a2d6e | 2455 | |
65300d60 | 2456 | BT_OBJECT_PUT_REF_AND_RESET(notit->packet); |
312c056a | 2457 | *notification = notif; |
e98a2d6e PP |
2458 | } |
2459 | ||
c44c3e70 | 2460 | BT_HIDDEN |
44c440bc | 2461 | struct bt_notif_iter *bt_notif_iter_create(struct ctf_trace_class *tc, |
e98a2d6e | 2462 | size_t max_request_sz, |
50842bdc | 2463 | struct bt_notif_iter_medium_ops medops, void *data) |
e98a2d6e | 2464 | { |
50842bdc | 2465 | struct bt_notif_iter *notit = NULL; |
5cd6d0e5 PP |
2466 | struct bt_bfcr_cbs cbs = { |
2467 | .classes = { | |
2468 | .signed_int = bfcr_signed_int_cb, | |
2469 | .unsigned_int = bfcr_unsigned_int_cb, | |
2470 | .floating_point = bfcr_floating_point_cb, | |
2471 | .string_begin = bfcr_string_begin_cb, | |
2472 | .string = bfcr_string_cb, | |
2473 | .string_end = bfcr_string_end_cb, | |
2474 | .compound_begin = bfcr_compound_begin_cb, | |
2475 | .compound_end = bfcr_compound_end_cb, | |
e98a2d6e PP |
2476 | }, |
2477 | .query = { | |
5cd6d0e5 PP |
2478 | .get_sequence_length = bfcr_get_sequence_length_cb, |
2479 | .borrow_variant_selected_field_class = bfcr_borrow_variant_selected_field_class_cb, | |
e98a2d6e PP |
2480 | }, |
2481 | }; | |
2482 | ||
44c440bc | 2483 | BT_ASSERT(tc); |
f6ccaed9 | 2484 | BT_ASSERT(medops.request_bytes); |
312c056a | 2485 | BT_ASSERT(medops.borrow_stream); |
fdf0e7a0 PP |
2486 | BT_LOGD("Creating CTF plugin notification iterator: " |
2487 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
44c440bc | 2488 | "data=%p", tc, tc->name->str, max_request_sz, data); |
50842bdc | 2489 | notit = g_new0(struct bt_notif_iter, 1); |
e98a2d6e | 2490 | if (!notit) { |
fdf0e7a0 | 2491 | BT_LOGE_STR("Failed to allocate one CTF plugin notification iterator."); |
e98a2d6e PP |
2492 | goto end; |
2493 | } | |
44c440bc | 2494 | notit->meta.tc = tc; |
e98a2d6e PP |
2495 | notit->medium.medops = medops; |
2496 | notit->medium.max_request_sz = max_request_sz; | |
2497 | notit->medium.data = data; | |
e98a2d6e | 2498 | notit->stack = stack_new(notit); |
44c440bc PP |
2499 | notit->stored_values = g_array_new(FALSE, TRUE, sizeof(uint64_t)); |
2500 | g_array_set_size(notit->stored_values, tc->stored_value_count); | |
2501 | ||
e98a2d6e | 2502 | if (!notit->stack) { |
fdf0e7a0 | 2503 | BT_LOGE_STR("Failed to create field stack."); |
c44c3e70 | 2504 | goto error; |
e98a2d6e PP |
2505 | } |
2506 | ||
5cd6d0e5 PP |
2507 | notit->bfcr = bt_bfcr_create(cbs, notit); |
2508 | if (!notit->bfcr) { | |
2509 | BT_LOGE_STR("Failed to create binary class reader (BFCR)."); | |
c44c3e70 | 2510 | goto error; |
e98a2d6e PP |
2511 | } |
2512 | ||
50842bdc | 2513 | bt_notif_iter_reset(notit); |
fdf0e7a0 PP |
2514 | BT_LOGD("Created CTF plugin notification iterator: " |
2515 | "trace-addr=%p, trace-name=\"%s\", max-request-size=%zu, " | |
2516 | "data=%p, notit-addr=%p", | |
44c440bc | 2517 | tc, tc->name->str, max_request_sz, data, |
fdf0e7a0 | 2518 | notit); |
9e0c8dbb | 2519 | notit->cur_packet_offset = 0; |
fdf0e7a0 | 2520 | |
e98a2d6e PP |
2521 | end: |
2522 | return notit; | |
fdf0e7a0 | 2523 | |
c44c3e70 | 2524 | error: |
50842bdc | 2525 | bt_notif_iter_destroy(notit); |
c44c3e70 JG |
2526 | notit = NULL; |
2527 | goto end; | |
e98a2d6e PP |
2528 | } |
2529 | ||
50842bdc | 2530 | void bt_notif_iter_destroy(struct bt_notif_iter *notit) |
e98a2d6e | 2531 | { |
65300d60 PP |
2532 | BT_OBJECT_PUT_REF_AND_RESET(notit->packet); |
2533 | BT_OBJECT_PUT_REF_AND_RESET(notit->stream); | |
312c056a | 2534 | release_all_dscopes(notit); |
e98a2d6e | 2535 | |
fdf0e7a0 PP |
2536 | BT_LOGD("Destroying CTF plugin notification iterator: addr=%p", notit); |
2537 | ||
e98a2d6e | 2538 | if (notit->stack) { |
fdf0e7a0 | 2539 | BT_LOGD_STR("Destroying field stack."); |
e98a2d6e PP |
2540 | stack_destroy(notit->stack); |
2541 | } | |
2542 | ||
5cd6d0e5 PP |
2543 | if (notit->bfcr) { |
2544 | BT_LOGD("Destroying BFCR: bfcr-addr=%p", notit->bfcr); | |
2545 | bt_bfcr_destroy(notit->bfcr); | |
e98a2d6e PP |
2546 | } |
2547 | ||
44c440bc PP |
2548 | if (notit->stored_values) { |
2549 | g_array_free(notit->stored_values, TRUE); | |
5f870343 | 2550 | } |
fdf0e7a0 | 2551 | |
e98a2d6e PP |
2552 | g_free(notit); |
2553 | } | |
2554 | ||
50842bdc PP |
2555 | enum bt_notif_iter_status bt_notif_iter_get_next_notification( |
2556 | struct bt_notif_iter *notit, | |
d94d92ac | 2557 | struct bt_self_notification_iterator *notif_iter, |
e5be10ef | 2558 | struct bt_private_notification **notification) |
e98a2d6e | 2559 | { |
50842bdc | 2560 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
e98a2d6e | 2561 | |
f6ccaed9 PP |
2562 | BT_ASSERT(notit); |
2563 | BT_ASSERT(notification); | |
e98a2d6e | 2564 | |
5c563278 PP |
2565 | if (notit->state == STATE_DONE) { |
2566 | status = BT_NOTIF_ITER_STATUS_EOF; | |
2567 | goto end; | |
2568 | } | |
2569 | ||
f0010051 | 2570 | notit->notif_iter = notif_iter; |
f42867e2 | 2571 | |
e22b45d0 | 2572 | BT_LOGV("Getting next notification: notit-addr=%p", notit); |
fdf0e7a0 | 2573 | |
e98a2d6e PP |
2574 | while (true) { |
2575 | status = handle_state(notit); | |
50842bdc PP |
2576 | if (status == BT_NOTIF_ITER_STATUS_AGAIN) { |
2577 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_AGAIN."); | |
7cdc2bab MD |
2578 | goto end; |
2579 | } | |
312c056a | 2580 | |
50842bdc PP |
2581 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
2582 | if (status == BT_NOTIF_ITER_STATUS_EOF) { | |
f42867e2 PP |
2583 | enum state next_state = notit->state; |
2584 | ||
50842bdc | 2585 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_EOF."); |
f42867e2 PP |
2586 | |
2587 | if (notit->packet) { | |
312c056a PP |
2588 | notify_end_of_packet(notit, |
2589 | notification); | |
f42867e2 | 2590 | } else { |
312c056a PP |
2591 | notify_end_of_stream(notit, |
2592 | notification); | |
f42867e2 PP |
2593 | next_state = STATE_DONE; |
2594 | } | |
2595 | ||
2596 | if (!*notification) { | |
2597 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
2598 | goto end; | |
2599 | } | |
2600 | ||
2601 | status = BT_NOTIF_ITER_STATUS_OK; | |
2602 | notit->state = next_state; | |
e98a2d6e | 2603 | } else { |
fdf0e7a0 PP |
2604 | BT_LOGW("Cannot handle state: " |
2605 | "notit-addr=%p, state=%s", | |
2606 | notit, state_string(notit->state)); | |
e98a2d6e | 2607 | } |
312c056a | 2608 | |
e98a2d6e PP |
2609 | goto end; |
2610 | } | |
2611 | ||
2612 | switch (notit->state) { | |
f42867e2 PP |
2613 | case STATE_EMIT_NOTIF_NEW_STREAM: |
2614 | /* notify_new_stream() logs errors */ | |
2615 | notify_new_stream(notit, notification); | |
44c440bc | 2616 | |
f42867e2 PP |
2617 | if (!*notification) { |
2618 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
2619 | } | |
44c440bc | 2620 | |
f42867e2 PP |
2621 | notit->stream_begin_emitted = true; |
2622 | goto end; | |
e98a2d6e | 2623 | case STATE_EMIT_NOTIF_NEW_PACKET: |
fdf0e7a0 | 2624 | /* notify_new_packet() logs errors */ |
e98a2d6e | 2625 | notify_new_packet(notit, notification); |
44c440bc | 2626 | |
e98a2d6e | 2627 | if (!*notification) { |
50842bdc | 2628 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e | 2629 | } |
312c056a | 2630 | |
e98a2d6e PP |
2631 | goto end; |
2632 | case STATE_EMIT_NOTIF_EVENT: | |
312c056a | 2633 | BT_ASSERT(notit->event_notif); |
44c440bc | 2634 | set_event_default_clock_value(notit); |
d4393e08 PP |
2635 | *notification = notit->event_notif; |
2636 | notit->event_notif = NULL; | |
e98a2d6e PP |
2637 | goto end; |
2638 | case STATE_EMIT_NOTIF_END_OF_PACKET: | |
fdf0e7a0 | 2639 | /* notify_end_of_packet() logs errors */ |
e98a2d6e | 2640 | notify_end_of_packet(notit, notification); |
44c440bc | 2641 | |
e98a2d6e | 2642 | if (!*notification) { |
50842bdc | 2643 | status = BT_NOTIF_ITER_STATUS_ERROR; |
e98a2d6e | 2644 | } |
312c056a | 2645 | |
e98a2d6e PP |
2646 | goto end; |
2647 | default: | |
2648 | /* Non-emitting state: continue */ | |
2649 | break; | |
2650 | } | |
2651 | } | |
2652 | ||
2653 | end: | |
2654 | return status; | |
2655 | } | |
87187cbf PP |
2656 | |
2657 | BT_HIDDEN | |
312c056a | 2658 | enum bt_notif_iter_status bt_notif_iter_borrow_packet_header_context_fields( |
50842bdc | 2659 | struct bt_notif_iter *notit, |
e5be10ef PP |
2660 | struct bt_private_field **packet_header_field, |
2661 | struct bt_private_field **packet_context_field) | |
87187cbf | 2662 | { |
9e0c8dbb | 2663 | int ret; |
50842bdc | 2664 | enum bt_notif_iter_status status = BT_NOTIF_ITER_STATUS_OK; |
87187cbf | 2665 | |
f6ccaed9 | 2666 | BT_ASSERT(notit); |
87187cbf PP |
2667 | |
2668 | if (notit->state == STATE_EMIT_NOTIF_NEW_PACKET) { | |
2669 | /* We're already there */ | |
2670 | goto set_fields; | |
2671 | } | |
2672 | ||
2673 | while (true) { | |
2674 | status = handle_state(notit); | |
50842bdc PP |
2675 | if (status == BT_NOTIF_ITER_STATUS_AGAIN) { |
2676 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_AGAIN."); | |
87187cbf PP |
2677 | goto end; |
2678 | } | |
50842bdc PP |
2679 | if (status != BT_NOTIF_ITER_STATUS_OK) { |
2680 | if (status == BT_NOTIF_ITER_STATUS_EOF) { | |
2681 | BT_LOGV_STR("Medium returned BT_NOTIF_ITER_STATUS_EOF."); | |
87187cbf | 2682 | } else { |
fdf0e7a0 PP |
2683 | BT_LOGW("Cannot handle state: " |
2684 | "notit-addr=%p, state=%s", | |
2685 | notit, state_string(notit->state)); | |
87187cbf PP |
2686 | } |
2687 | goto end; | |
2688 | } | |
2689 | ||
2690 | switch (notit->state) { | |
2691 | case STATE_EMIT_NOTIF_NEW_PACKET: | |
2692 | /* | |
2693 | * Packet header and context fields are | |
2694 | * potentially decoded (or they don't exist). | |
2695 | */ | |
2696 | goto set_fields; | |
2697 | case STATE_INIT: | |
f42867e2 | 2698 | case STATE_EMIT_NOTIF_NEW_STREAM: |
87187cbf PP |
2699 | case STATE_DSCOPE_TRACE_PACKET_HEADER_BEGIN: |
2700 | case STATE_DSCOPE_TRACE_PACKET_HEADER_CONTINUE: | |
2701 | case STATE_AFTER_TRACE_PACKET_HEADER: | |
2702 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_BEGIN: | |
2703 | case STATE_DSCOPE_STREAM_PACKET_CONTEXT_CONTINUE: | |
2704 | case STATE_AFTER_STREAM_PACKET_CONTEXT: | |
2705 | /* Non-emitting state: continue */ | |
2706 | break; | |
2707 | default: | |
2708 | /* | |
2709 | * We should never get past the | |
2710 | * STATE_EMIT_NOTIF_NEW_PACKET state. | |
2711 | */ | |
fdf0e7a0 PP |
2712 | BT_LOGF("Unexpected state: notit-addr=%p, state=%s", |
2713 | notit, state_string(notit->state)); | |
0fbb9a9f | 2714 | abort(); |
87187cbf PP |
2715 | } |
2716 | } | |
2717 | ||
2718 | set_fields: | |
312c056a PP |
2719 | ret = set_current_packet_content_sizes(notit); |
2720 | if (ret) { | |
2721 | status = BT_NOTIF_ITER_STATUS_ERROR; | |
2722 | goto end; | |
2723 | } | |
2724 | ||
87187cbf | 2725 | if (packet_header_field) { |
312c056a | 2726 | *packet_header_field = notit->dscopes.trace_packet_header; |
87187cbf PP |
2727 | } |
2728 | ||
2729 | if (packet_context_field) { | |
312c056a | 2730 | *packet_context_field = notit->dscopes.stream_packet_context; |
87187cbf PP |
2731 | } |
2732 | ||
2733 | end: | |
2734 | return status; | |
2735 | } | |
6de92955 PP |
2736 | |
2737 | BT_HIDDEN | |
50842bdc | 2738 | void bt_notif_iter_set_medops_data(struct bt_notif_iter *notit, |
6de92955 PP |
2739 | void *medops_data) |
2740 | { | |
f6ccaed9 | 2741 | BT_ASSERT(notit); |
6de92955 PP |
2742 | notit->medium.data = medops_data; |
2743 | } | |
9e0c8dbb JG |
2744 | |
2745 | BT_HIDDEN | |
50842bdc PP |
2746 | enum bt_notif_iter_status bt_notif_iter_seek( |
2747 | struct bt_notif_iter *notit, off_t offset) | |
9e0c8dbb | 2748 | { |
50842bdc PP |
2749 | enum bt_notif_iter_status ret = BT_NOTIF_ITER_STATUS_OK; |
2750 | enum bt_notif_iter_medium_status medium_status; | |
9e0c8dbb | 2751 | |
f6ccaed9 | 2752 | BT_ASSERT(notit); |
9e0c8dbb JG |
2753 | if (offset < 0) { |
2754 | BT_LOGE("Cannot seek to negative offset: offset=%jd", offset); | |
50842bdc | 2755 | ret = BT_NOTIF_ITER_STATUS_INVAL; |
9e0c8dbb JG |
2756 | goto end; |
2757 | } | |
2758 | ||
2759 | if (!notit->medium.medops.seek) { | |
50842bdc | 2760 | ret = BT_NOTIF_ITER_STATUS_UNSUPPORTED; |
9e0c8dbb JG |
2761 | BT_LOGD("Aborting seek as the iterator's underlying media does not implement seek support."); |
2762 | goto end; | |
2763 | } | |
2764 | ||
2765 | medium_status = notit->medium.medops.seek( | |
44c440bc | 2766 | BT_NOTIF_ITER_SEEK_WHENCE_SET, offset, notit->medium.data); |
50842bdc PP |
2767 | if (medium_status != BT_NOTIF_ITER_MEDIUM_STATUS_OK) { |
2768 | if (medium_status == BT_NOTIF_ITER_MEDIUM_STATUS_EOF) { | |
2769 | ret = BT_NOTIF_ITER_STATUS_EOF; | |
9e0c8dbb | 2770 | } else { |
50842bdc | 2771 | ret = BT_NOTIF_ITER_STATUS_ERROR; |
9e0c8dbb JG |
2772 | goto end; |
2773 | } | |
2774 | } | |
2775 | ||
50842bdc | 2776 | bt_notif_iter_reset(notit); |
9e0c8dbb | 2777 | notit->cur_packet_offset = offset; |
44c440bc | 2778 | |
9e0c8dbb JG |
2779 | end: |
2780 | return ret; | |
2781 | } | |
2782 | ||
2783 | BT_HIDDEN | |
44c440bc | 2784 | off_t bt_notif_iter_get_current_packet_offset(struct bt_notif_iter *notit) |
9e0c8dbb | 2785 | { |
f6ccaed9 | 2786 | BT_ASSERT(notit); |
9e0c8dbb JG |
2787 | return notit->cur_packet_offset; |
2788 | } | |
2789 | ||
2790 | BT_HIDDEN | |
50842bdc PP |
2791 | off_t bt_notif_iter_get_current_packet_size( |
2792 | struct bt_notif_iter *notit) | |
9e0c8dbb | 2793 | { |
f6ccaed9 | 2794 | BT_ASSERT(notit); |
44c440bc PP |
2795 | return notit->cur_exp_packet_total_size; |
2796 | } | |
2797 | ||
2798 | BT_HIDDEN | |
2799 | void bt_notif_trace_class_changed(struct bt_notif_iter *notit) | |
2800 | { | |
2801 | if (notit->meta.tc->stored_value_count > notit->stored_values->len) { | |
2802 | g_array_set_size(notit->stored_values, | |
2803 | notit->meta.tc->stored_value_count); | |
2804 | } | |
2805 | } | |
2806 | ||
2807 | BT_HIDDEN | |
2808 | enum bt_notif_iter_status bt_notif_iter_get_packet_properties( | |
2809 | struct bt_notif_iter *notit, | |
2810 | struct bt_notif_iter_packet_properties *props) | |
2811 | { | |
2812 | BT_ASSERT(notit); | |
2813 | BT_ASSERT(props); | |
2814 | ||
2815 | props->exp_packet_total_size = | |
2816 | (uint64_t) notit->cur_exp_packet_total_size; | |
2817 | props->exp_packet_content_size = | |
2818 | (uint64_t) notit->cur_exp_packet_content_size; | |
2819 | BT_ASSERT(props->stream_class_id >= 0); | |
2820 | props->stream_class_id = (uint64_t) notit->cur_stream_class_id; | |
2821 | props->data_stream_id = notit->cur_data_stream_id; | |
2822 | props->snapshots.discarded_events = notit->snapshots.discarded_events; | |
2823 | props->snapshots.packets = notit->snapshots.packets; | |
2824 | props->snapshots.beginning_clock = notit->snapshots.beginning_clock; | |
2825 | props->snapshots.end_clock = notit->snapshots.end_clock; | |
2826 | return BT_NOTIF_ITER_STATUS_OK; | |
9e0c8dbb | 2827 | } |