Commit | Line | Data |
---|---|---|
fc93b2bd MD |
1 | /* |
2 | * BabelTrace - Common Trace Format (CTF) | |
3 | * | |
4 | * Format registration. | |
5 | * | |
64fa3fec MD |
6 | * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation |
7 | * | |
8 | * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
fc93b2bd | 9 | * |
ccd7e1c8 MD |
10 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
11 | * of this software and associated documentation files (the "Software"), to deal | |
12 | * in the Software without restriction, including without limitation the rights | |
13 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
14 | * copies of the Software, and to permit persons to whom the Software is | |
15 | * furnished to do so, subject to the following conditions: | |
fc93b2bd | 16 | * |
ccd7e1c8 MD |
17 | * The above copyright notice and this permission notice shall be included in |
18 | * all copies or substantial portions of the Software. | |
fc93b2bd MD |
19 | */ |
20 | ||
21 | #include <babeltrace/format.h> | |
22 | #include <babeltrace/ctf/types.h> | |
bbefb8dd | 23 | #include <babeltrace/ctf/metadata.h> |
70bd0a12 | 24 | #include <babeltrace/babeltrace-internal.h> |
e4195791 | 25 | #include <babeltrace/ctf/events-internal.h> |
98a04903 JD |
26 | #include <babeltrace/trace-handle-internal.h> |
27 | #include <babeltrace/context-internal.h> | |
43e34335 MD |
28 | #include <babeltrace/uuid.h> |
29 | #include <babeltrace/endian.h> | |
0f980a35 | 30 | #include <inttypes.h> |
b4c19c1e | 31 | #include <stdio.h> |
0f980a35 | 32 | #include <sys/mman.h> |
bbefb8dd | 33 | #include <errno.h> |
bbefb8dd | 34 | #include <sys/types.h> |
65102a8c | 35 | #include <sys/stat.h> |
bbefb8dd | 36 | #include <fcntl.h> |
65102a8c | 37 | #include <dirent.h> |
bbefb8dd | 38 | #include <glib.h> |
65102a8c MD |
39 | #include <unistd.h> |
40 | #include <stdlib.h> | |
41 | ||
65102a8c MD |
42 | #include "metadata/ctf-scanner.h" |
43 | #include "metadata/ctf-parser.h" | |
44 | #include "metadata/ctf-ast.h" | |
c34ea0fa | 45 | #include "events-private.h" |
f8370579 | 46 | #include "memstream.h" |
65102a8c | 47 | |
0f980a35 MD |
48 | /* |
49 | * We currently simply map a page to read the packet header and packet | |
8c572eba | 50 | * context to get the packet length and content length. (in bits) |
0f980a35 | 51 | */ |
8c572eba MD |
52 | #define MAX_PACKET_HEADER_LEN (getpagesize() * CHAR_BIT) |
53 | #define WRITE_PACKET_LEN (getpagesize() * 8 * CHAR_BIT) | |
0f980a35 | 54 | |
a0fe7d97 MD |
55 | #ifndef min |
56 | #define min(a, b) (((a) < (b)) ? (a) : (b)) | |
57 | #endif | |
58 | ||
7d97fad9 MD |
59 | #define NSEC_PER_SEC 1000000000ULL |
60 | ||
03798a93 | 61 | int opt_clock_cycles, |
7d97fad9 MD |
62 | opt_clock_seconds, |
63 | opt_clock_date, | |
64 | opt_clock_gmt; | |
65 | ||
66 | uint64_t opt_clock_offset; | |
67 | ||
65102a8c | 68 | extern int yydebug; |
bbefb8dd | 69 | |
e9378815 | 70 | static |
5b80ddfb | 71 | struct trace_descriptor *ctf_open_trace(const char *path, int flags, |
20d0dcf9 MD |
72 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
73 | int whence), | |
74 | FILE *metadata_fp); | |
e9378815 | 75 | static |
f571dfb1 JD |
76 | struct trace_descriptor *ctf_open_mmap_trace( |
77 | struct mmap_stream_list *mmap_list, | |
20d0dcf9 MD |
78 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
79 | int whence), | |
f571dfb1 | 80 | FILE *metadata_fp); |
98a04903 JD |
81 | static |
82 | void ctf_set_context(struct trace_descriptor *descriptor, | |
83 | struct bt_context *ctx); | |
84 | static | |
85 | void ctf_set_handle(struct trace_descriptor *descriptor, | |
86 | struct bt_trace_handle *handle); | |
f571dfb1 JD |
87 | |
88 | static | |
bbefb8dd | 89 | void ctf_close_trace(struct trace_descriptor *descriptor); |
30c276af JD |
90 | static |
91 | uint64_t ctf_timestamp_begin(struct trace_descriptor *descriptor, | |
03798a93 | 92 | struct bt_trace_handle *handle, enum bt_clock_type type); |
30c276af JD |
93 | static |
94 | uint64_t ctf_timestamp_end(struct trace_descriptor *descriptor, | |
03798a93 JD |
95 | struct bt_trace_handle *handle, enum bt_clock_type type); |
96 | static | |
97 | int ctf_convert_index_timestamp(struct trace_descriptor *tdp); | |
fc93b2bd | 98 | |
1ae19169 MD |
99 | static |
100 | rw_dispatch read_dispatch_table[] = { | |
d11e9c49 MD |
101 | [ CTF_TYPE_INTEGER ] = ctf_integer_read, |
102 | [ CTF_TYPE_FLOAT ] = ctf_float_read, | |
103 | [ CTF_TYPE_ENUM ] = ctf_enum_read, | |
104 | [ CTF_TYPE_STRING ] = ctf_string_read, | |
105 | [ CTF_TYPE_STRUCT ] = ctf_struct_rw, | |
106 | [ CTF_TYPE_VARIANT ] = ctf_variant_rw, | |
81dee1bb MD |
107 | [ CTF_TYPE_ARRAY ] = ctf_array_read, |
108 | [ CTF_TYPE_SEQUENCE ] = ctf_sequence_read, | |
d11e9c49 MD |
109 | }; |
110 | ||
1ae19169 MD |
111 | static |
112 | rw_dispatch write_dispatch_table[] = { | |
d11e9c49 MD |
113 | [ CTF_TYPE_INTEGER ] = ctf_integer_write, |
114 | [ CTF_TYPE_FLOAT ] = ctf_float_write, | |
115 | [ CTF_TYPE_ENUM ] = ctf_enum_write, | |
116 | [ CTF_TYPE_STRING ] = ctf_string_write, | |
117 | [ CTF_TYPE_STRUCT ] = ctf_struct_rw, | |
118 | [ CTF_TYPE_VARIANT ] = ctf_variant_rw, | |
81dee1bb MD |
119 | [ CTF_TYPE_ARRAY ] = ctf_array_write, |
120 | [ CTF_TYPE_SEQUENCE ] = ctf_sequence_write, | |
d11e9c49 MD |
121 | }; |
122 | ||
1ae19169 | 123 | static |
d11e9c49 | 124 | struct format ctf_format = { |
bbefb8dd | 125 | .open_trace = ctf_open_trace, |
f571dfb1 | 126 | .open_mmap_trace = ctf_open_mmap_trace, |
bbefb8dd | 127 | .close_trace = ctf_close_trace, |
98a04903 JD |
128 | .set_context = ctf_set_context, |
129 | .set_handle = ctf_set_handle, | |
30c276af JD |
130 | .timestamp_begin = ctf_timestamp_begin, |
131 | .timestamp_end = ctf_timestamp_end, | |
03798a93 | 132 | .convert_index_timestamp = ctf_convert_index_timestamp, |
fc93b2bd MD |
133 | }; |
134 | ||
30c276af JD |
135 | static |
136 | uint64_t ctf_timestamp_begin(struct trace_descriptor *descriptor, | |
03798a93 | 137 | struct bt_trace_handle *handle, enum bt_clock_type type) |
30c276af JD |
138 | { |
139 | struct ctf_trace *tin; | |
140 | uint64_t begin = ULLONG_MAX; | |
141 | int i, j; | |
142 | ||
143 | tin = container_of(descriptor, struct ctf_trace, parent); | |
144 | ||
145 | if (!tin) | |
146 | goto error; | |
147 | ||
148 | /* for each stream_class */ | |
149 | for (i = 0; i < tin->streams->len; i++) { | |
150 | struct ctf_stream_declaration *stream_class; | |
151 | ||
152 | stream_class = g_ptr_array_index(tin->streams, i); | |
1b01ffc2 MD |
153 | if (!stream_class) |
154 | continue; | |
30c276af JD |
155 | /* for each file_stream */ |
156 | for (j = 0; j < stream_class->streams->len; j++) { | |
157 | struct ctf_stream_definition *stream; | |
158 | struct ctf_file_stream *cfs; | |
159 | struct ctf_stream_pos *stream_pos; | |
160 | struct packet_index *index; | |
161 | ||
162 | stream = g_ptr_array_index(stream_class->streams, j); | |
163 | cfs = container_of(stream, struct ctf_file_stream, | |
164 | parent); | |
165 | stream_pos = &cfs->pos; | |
166 | ||
03798a93 JD |
167 | if (!stream_pos->packet_real_index) |
168 | goto error; | |
169 | ||
afe9cd4a JD |
170 | if (stream_pos->packet_real_index->len <= 0) |
171 | continue; | |
172 | ||
03798a93 JD |
173 | if (type == BT_CLOCK_REAL) { |
174 | index = &g_array_index(stream_pos->packet_real_index, | |
175 | struct packet_index, | |
176 | stream_pos->packet_real_index->len - 1); | |
177 | } else if (type == BT_CLOCK_CYCLES) { | |
178 | index = &g_array_index(stream_pos->packet_cycles_index, | |
179 | struct packet_index, | |
180 | stream_pos->packet_real_index->len - 1); | |
181 | ||
182 | } else { | |
183 | goto error; | |
184 | } | |
30c276af JD |
185 | if (index->timestamp_begin < begin) |
186 | begin = index->timestamp_begin; | |
187 | } | |
188 | } | |
189 | ||
190 | return begin; | |
191 | ||
192 | error: | |
193 | return -1ULL; | |
194 | } | |
195 | ||
196 | static | |
197 | uint64_t ctf_timestamp_end(struct trace_descriptor *descriptor, | |
03798a93 | 198 | struct bt_trace_handle *handle, enum bt_clock_type type) |
30c276af JD |
199 | { |
200 | struct ctf_trace *tin; | |
201 | uint64_t end = 0; | |
202 | int i, j; | |
203 | ||
204 | tin = container_of(descriptor, struct ctf_trace, parent); | |
205 | ||
206 | if (!tin) | |
207 | goto error; | |
208 | ||
209 | /* for each stream_class */ | |
210 | for (i = 0; i < tin->streams->len; i++) { | |
211 | struct ctf_stream_declaration *stream_class; | |
212 | ||
213 | stream_class = g_ptr_array_index(tin->streams, i); | |
1b01ffc2 MD |
214 | if (!stream_class) |
215 | continue; | |
30c276af JD |
216 | /* for each file_stream */ |
217 | for (j = 0; j < stream_class->streams->len; j++) { | |
218 | struct ctf_stream_definition *stream; | |
219 | struct ctf_file_stream *cfs; | |
220 | struct ctf_stream_pos *stream_pos; | |
221 | struct packet_index *index; | |
222 | ||
223 | stream = g_ptr_array_index(stream_class->streams, j); | |
224 | cfs = container_of(stream, struct ctf_file_stream, | |
225 | parent); | |
226 | stream_pos = &cfs->pos; | |
227 | ||
03798a93 JD |
228 | if (!stream_pos->packet_real_index) |
229 | goto error; | |
230 | ||
afe9cd4a JD |
231 | if (stream_pos->packet_real_index->len <= 0) |
232 | continue; | |
233 | ||
03798a93 JD |
234 | if (type == BT_CLOCK_REAL) { |
235 | index = &g_array_index(stream_pos->packet_real_index, | |
236 | struct packet_index, | |
237 | stream_pos->packet_real_index->len - 1); | |
238 | } else if (type == BT_CLOCK_CYCLES) { | |
239 | index = &g_array_index(stream_pos->packet_cycles_index, | |
240 | struct packet_index, | |
241 | stream_pos->packet_real_index->len - 1); | |
242 | ||
243 | } else { | |
244 | goto error; | |
245 | } | |
30c276af JD |
246 | if (index->timestamp_end > end) |
247 | end = index->timestamp_end; | |
248 | } | |
249 | } | |
250 | ||
251 | return end; | |
252 | ||
253 | error: | |
254 | return -1ULL; | |
255 | } | |
256 | ||
25ccc85b | 257 | /* |
03798a93 | 258 | * Update stream current timestamp |
25ccc85b | 259 | */ |
2b9a764d | 260 | static |
9e88d150 | 261 | void ctf_update_timestamp(struct ctf_stream_definition *stream, |
2b9a764d MD |
262 | struct definition_integer *integer_definition) |
263 | { | |
264 | struct declaration_integer *integer_declaration = | |
265 | integer_definition->declaration; | |
266 | uint64_t oldval, newval, updateval; | |
267 | ||
7f3f572b | 268 | if (unlikely(integer_declaration->len == 64)) { |
03798a93 JD |
269 | stream->prev_cycles_timestamp = stream->cycles_timestamp; |
270 | stream->cycles_timestamp = integer_definition->value._unsigned; | |
271 | stream->prev_real_timestamp = ctf_get_real_timestamp(stream, | |
272 | stream->prev_cycles_timestamp); | |
273 | stream->real_timestamp = ctf_get_real_timestamp(stream, | |
274 | stream->cycles_timestamp); | |
2b9a764d MD |
275 | return; |
276 | } | |
277 | /* keep low bits */ | |
03798a93 | 278 | oldval = stream->cycles_timestamp; |
2b9a764d MD |
279 | oldval &= (1ULL << integer_declaration->len) - 1; |
280 | newval = integer_definition->value._unsigned; | |
281 | /* Test for overflow by comparing low bits */ | |
282 | if (newval < oldval) | |
283 | newval += 1ULL << integer_declaration->len; | |
284 | /* updateval contains old high bits, and new low bits (sum) */ | |
03798a93 | 285 | updateval = stream->cycles_timestamp; |
2b9a764d MD |
286 | updateval &= ~((1ULL << integer_declaration->len) - 1); |
287 | updateval += newval; | |
03798a93 JD |
288 | stream->prev_cycles_timestamp = stream->cycles_timestamp; |
289 | stream->cycles_timestamp = updateval; | |
290 | ||
291 | /* convert to real timestamp */ | |
292 | stream->prev_real_timestamp = ctf_get_real_timestamp(stream, | |
293 | stream->prev_cycles_timestamp); | |
294 | stream->real_timestamp = ctf_get_real_timestamp(stream, | |
295 | stream->cycles_timestamp); | |
2b9a764d MD |
296 | } |
297 | ||
25ccc85b MD |
298 | /* |
299 | * Print timestamp, rescaling clock frequency to nanoseconds and | |
300 | * applying offsets as needed (unix time). | |
301 | */ | |
03798a93 | 302 | void ctf_print_timestamp_real(FILE *fp, |
9e88d150 | 303 | struct ctf_stream_definition *stream, |
7d97fad9 MD |
304 | uint64_t timestamp) |
305 | { | |
306 | uint64_t ts_sec = 0, ts_nsec; | |
7d97fad9 | 307 | |
03798a93 | 308 | ts_nsec = timestamp; |
7d97fad9 | 309 | |
c34ea0fa | 310 | /* Add command-line offset */ |
7d97fad9 MD |
311 | ts_sec += opt_clock_offset; |
312 | ||
313 | ts_sec += ts_nsec / NSEC_PER_SEC; | |
314 | ts_nsec = ts_nsec % NSEC_PER_SEC; | |
315 | ||
316 | if (!opt_clock_seconds) { | |
317 | struct tm tm; | |
318 | time_t time_s = (time_t) ts_sec; | |
319 | ||
320 | if (!opt_clock_gmt) { | |
321 | struct tm *res; | |
322 | ||
323 | res = localtime_r(&time_s, &tm); | |
324 | if (!res) { | |
325 | fprintf(stderr, "[warning] Unable to get localtime.\n"); | |
326 | goto seconds; | |
327 | } | |
328 | } else { | |
329 | struct tm *res; | |
330 | ||
331 | res = gmtime_r(&time_s, &tm); | |
332 | if (!res) { | |
333 | fprintf(stderr, "[warning] Unable to get gmtime.\n"); | |
334 | goto seconds; | |
335 | } | |
336 | } | |
337 | if (opt_clock_date) { | |
338 | char timestr[26]; | |
339 | size_t res; | |
340 | ||
341 | /* Print date and time */ | |
342 | res = strftime(timestr, sizeof(timestr), | |
343 | "%F ", &tm); | |
344 | if (!res) { | |
345 | fprintf(stderr, "[warning] Unable to print ascii time.\n"); | |
346 | goto seconds; | |
347 | } | |
348 | fprintf(fp, "%s", timestr); | |
349 | } | |
350 | /* Print time in HH:MM:SS.ns */ | |
351 | fprintf(fp, "%02d:%02d:%02d.%09" PRIu64, | |
352 | tm.tm_hour, tm.tm_min, tm.tm_sec, ts_nsec); | |
353 | goto end; | |
354 | } | |
355 | seconds: | |
356 | fprintf(fp, "%3" PRIu64 ".%09" PRIu64, | |
357 | ts_sec, ts_nsec); | |
358 | ||
359 | end: | |
360 | return; | |
361 | } | |
362 | ||
03798a93 JD |
363 | /* |
364 | * Print timestamp, in cycles | |
365 | */ | |
366 | void ctf_print_timestamp_cycles(FILE *fp, | |
367 | struct ctf_stream_definition *stream, | |
368 | uint64_t timestamp) | |
369 | { | |
370 | fprintf(fp, "%020" PRIu64, timestamp); | |
371 | } | |
372 | ||
373 | void ctf_print_timestamp(FILE *fp, | |
374 | struct ctf_stream_definition *stream, | |
375 | uint64_t timestamp) | |
376 | { | |
377 | if (opt_clock_cycles) { | |
378 | ctf_print_timestamp_cycles(fp, stream, timestamp); | |
379 | } else { | |
380 | ctf_print_timestamp_real(fp, stream, timestamp); | |
381 | } | |
382 | } | |
383 | ||
31262354 | 384 | static |
9e88d150 | 385 | int ctf_read_event(struct stream_pos *ppos, struct ctf_stream_definition *stream) |
31262354 MD |
386 | { |
387 | struct ctf_stream_pos *pos = | |
388 | container_of(ppos, struct ctf_stream_pos, parent); | |
f380e105 | 389 | struct ctf_stream_declaration *stream_class = stream->stream_class; |
c716f83b | 390 | struct ctf_event_definition *event; |
31262354 | 391 | uint64_t id = 0; |
31262354 MD |
392 | int ret; |
393 | ||
3abe83c7 MD |
394 | /* We need to check for EOF here for empty files. */ |
395 | if (unlikely(pos->offset == EOF)) | |
396 | return EOF; | |
397 | ||
5f643ed7 MD |
398 | ctf_pos_get_event(pos); |
399 | ||
90fcbacc JD |
400 | /* save the current position as a restore point */ |
401 | pos->last_offset = pos->offset; | |
90fcbacc | 402 | |
3abe83c7 MD |
403 | /* |
404 | * This is the EOF check after we've advanced the position in | |
405 | * ctf_pos_get_event. | |
406 | */ | |
7f3f572b | 407 | if (unlikely(pos->offset == EOF)) |
31262354 | 408 | return EOF; |
5f643ed7 | 409 | assert(pos->offset < pos->content_size); |
31262354 MD |
410 | |
411 | /* Read event header */ | |
7f3f572b | 412 | if (likely(stream->stream_event_header)) { |
a35173fe | 413 | struct definition_integer *integer_definition; |
ccdb988e | 414 | struct definition *variant; |
a35173fe | 415 | |
e28d4618 | 416 | ret = generic_rw(ppos, &stream->stream_event_header->p); |
7f3f572b | 417 | if (unlikely(ret)) |
31262354 MD |
418 | goto error; |
419 | /* lookup event id */ | |
e28d4618 | 420 | integer_definition = lookup_integer(&stream->stream_event_header->p, "id", FALSE); |
a35173fe MD |
421 | if (integer_definition) { |
422 | id = integer_definition->value._unsigned; | |
423 | } else { | |
424 | struct definition_enum *enum_definition; | |
425 | ||
e28d4618 | 426 | enum_definition = lookup_enum(&stream->stream_event_header->p, "id", FALSE); |
a35173fe MD |
427 | if (enum_definition) { |
428 | id = enum_definition->integer->value._unsigned; | |
429 | } | |
31262354 | 430 | } |
764af3f4 | 431 | |
e28d4618 | 432 | variant = lookup_variant(&stream->stream_event_header->p, "v"); |
ccdb988e MD |
433 | if (variant) { |
434 | integer_definition = lookup_integer(variant, "id", FALSE); | |
435 | if (integer_definition) { | |
436 | id = integer_definition->value._unsigned; | |
437 | } | |
438 | } | |
c87a8eb2 | 439 | stream->event_id = id; |
ccdb988e | 440 | |
764af3f4 | 441 | /* lookup timestamp */ |
5e2eb0ae | 442 | stream->has_timestamp = 0; |
e28d4618 | 443 | integer_definition = lookup_integer(&stream->stream_event_header->p, "timestamp", FALSE); |
a35173fe | 444 | if (integer_definition) { |
2b9a764d | 445 | ctf_update_timestamp(stream, integer_definition); |
5e2eb0ae | 446 | stream->has_timestamp = 1; |
a35173fe | 447 | } else { |
ccdb988e MD |
448 | if (variant) { |
449 | integer_definition = lookup_integer(variant, "timestamp", FALSE); | |
a35173fe | 450 | if (integer_definition) { |
2b9a764d | 451 | ctf_update_timestamp(stream, integer_definition); |
5e2eb0ae | 452 | stream->has_timestamp = 1; |
a35173fe MD |
453 | } |
454 | } | |
764af3f4 | 455 | } |
31262354 MD |
456 | } |
457 | ||
458 | /* Read stream-declared event context */ | |
e28d4618 MD |
459 | if (stream->stream_event_context) { |
460 | ret = generic_rw(ppos, &stream->stream_event_context->p); | |
31262354 MD |
461 | if (ret) |
462 | goto error; | |
463 | } | |
464 | ||
7f3f572b | 465 | if (unlikely(id >= stream_class->events_by_id->len)) { |
3394d22e | 466 | fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id); |
31262354 MD |
467 | return -EINVAL; |
468 | } | |
e28d4618 | 469 | event = g_ptr_array_index(stream->events_by_id, id); |
7f3f572b | 470 | if (unlikely(!event)) { |
3394d22e | 471 | fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id); |
31262354 MD |
472 | return -EINVAL; |
473 | } | |
474 | ||
475 | /* Read event-declared event context */ | |
e28d4618 MD |
476 | if (event->event_context) { |
477 | ret = generic_rw(ppos, &event->event_context->p); | |
31262354 MD |
478 | if (ret) |
479 | goto error; | |
480 | } | |
481 | ||
482 | /* Read event payload */ | |
7f3f572b | 483 | if (likely(event->event_fields)) { |
e28d4618 | 484 | ret = generic_rw(ppos, &event->event_fields->p); |
31262354 MD |
485 | if (ret) |
486 | goto error; | |
487 | } | |
488 | ||
489 | return 0; | |
490 | ||
491 | error: | |
3394d22e | 492 | fprintf(stderr, "[error] Unexpected end of stream. Either the trace data stream is corrupted or metadata description does not match data layout.\n"); |
31262354 MD |
493 | return ret; |
494 | } | |
495 | ||
496 | static | |
9e88d150 | 497 | int ctf_write_event(struct stream_pos *pos, struct ctf_stream_definition *stream) |
31262354 | 498 | { |
f380e105 | 499 | struct ctf_stream_declaration *stream_class = stream->stream_class; |
c716f83b | 500 | struct ctf_event_definition *event; |
c87a8eb2 | 501 | uint64_t id; |
31262354 MD |
502 | int ret; |
503 | ||
c87a8eb2 MD |
504 | id = stream->event_id; |
505 | ||
31262354 | 506 | /* print event header */ |
7f3f572b | 507 | if (likely(stream->stream_event_header)) { |
e28d4618 | 508 | ret = generic_rw(pos, &stream->stream_event_header->p); |
31262354 MD |
509 | if (ret) |
510 | goto error; | |
511 | } | |
512 | ||
513 | /* print stream-declared event context */ | |
e28d4618 MD |
514 | if (stream->stream_event_context) { |
515 | ret = generic_rw(pos, &stream->stream_event_context->p); | |
31262354 MD |
516 | if (ret) |
517 | goto error; | |
518 | } | |
519 | ||
7f3f572b | 520 | if (unlikely(id >= stream_class->events_by_id->len)) { |
3394d22e | 521 | fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id); |
31262354 MD |
522 | return -EINVAL; |
523 | } | |
e28d4618 | 524 | event = g_ptr_array_index(stream->events_by_id, id); |
7f3f572b | 525 | if (unlikely(!event)) { |
3394d22e | 526 | fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id); |
31262354 MD |
527 | return -EINVAL; |
528 | } | |
529 | ||
530 | /* print event-declared event context */ | |
e28d4618 MD |
531 | if (event->event_context) { |
532 | ret = generic_rw(pos, &event->event_context->p); | |
31262354 MD |
533 | if (ret) |
534 | goto error; | |
535 | } | |
536 | ||
537 | /* Read and print event payload */ | |
7f3f572b | 538 | if (likely(event->event_fields)) { |
e28d4618 | 539 | ret = generic_rw(pos, &event->event_fields->p); |
31262354 MD |
540 | if (ret) |
541 | goto error; | |
542 | } | |
543 | ||
544 | return 0; | |
545 | ||
546 | error: | |
3394d22e | 547 | fprintf(stderr, "[error] Unexpected end of stream. Either the trace data stream is corrupted or metadata description does not match data layout.\n"); |
31262354 MD |
548 | return ret; |
549 | } | |
550 | ||
8563e754 | 551 | void ctf_init_pos(struct ctf_stream_pos *pos, int fd, int open_flags) |
8c572eba MD |
552 | { |
553 | pos->fd = fd; | |
554 | pos->mmap_offset = 0; | |
555 | pos->packet_size = 0; | |
556 | pos->content_size = 0; | |
557 | pos->content_size_loc = NULL; | |
aee35fcc | 558 | pos->base_mma = NULL; |
8c572eba MD |
559 | pos->offset = 0; |
560 | pos->dummy = false; | |
8c572eba | 561 | pos->cur_index = 0; |
03798a93 | 562 | pos->packet_real_index = NULL; |
37fcdd19 | 563 | if (fd >= 0) { |
03798a93 | 564 | pos->packet_cycles_index = g_array_new(FALSE, TRUE, |
8563e754 | 565 | sizeof(struct packet_index)); |
37fcdd19 JD |
566 | pos->packet_real_index = g_array_new(FALSE, TRUE, |
567 | sizeof(struct packet_index)); | |
568 | } else { | |
03798a93 | 569 | pos->packet_cycles_index = NULL; |
37fcdd19 JD |
570 | pos->packet_real_index = NULL; |
571 | } | |
8563e754 MD |
572 | switch (open_flags & O_ACCMODE) { |
573 | case O_RDONLY: | |
574 | pos->prot = PROT_READ; | |
575 | pos->flags = MAP_PRIVATE; | |
576 | pos->parent.rw_table = read_dispatch_table; | |
31262354 | 577 | pos->parent.event_cb = ctf_read_event; |
8563e754 | 578 | break; |
8563e754 MD |
579 | case O_RDWR: |
580 | pos->prot = PROT_WRITE; /* Write has priority */ | |
581 | pos->flags = MAP_SHARED; | |
582 | pos->parent.rw_table = write_dispatch_table; | |
31262354 | 583 | pos->parent.event_cb = ctf_write_event; |
8563e754 | 584 | if (fd >= 0) |
06789ffd | 585 | ctf_packet_seek(&pos->parent, 0, SEEK_SET); /* position for write */ |
8563e754 MD |
586 | break; |
587 | default: | |
588 | assert(0); | |
8c572eba MD |
589 | } |
590 | } | |
591 | ||
46322b33 | 592 | void ctf_fini_pos(struct ctf_stream_pos *pos) |
8c572eba MD |
593 | { |
594 | int ret; | |
595 | ||
596 | if (pos->prot == PROT_WRITE && pos->content_size_loc) | |
597 | *pos->content_size_loc = pos->offset; | |
aee35fcc | 598 | if (pos->base_mma) { |
8c572eba | 599 | /* unmap old base */ |
aee35fcc | 600 | ret = munmap_align(pos->base_mma); |
8c572eba | 601 | if (ret) { |
3394d22e | 602 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", |
8c572eba MD |
603 | strerror(errno)); |
604 | assert(0); | |
605 | } | |
606 | } | |
37fcdd19 JD |
607 | if (pos->packet_cycles_index) |
608 | (void) g_array_free(pos->packet_cycles_index, TRUE); | |
609 | if (pos->packet_real_index) | |
610 | (void) g_array_free(pos->packet_real_index, TRUE); | |
8c572eba MD |
611 | } |
612 | ||
20d0dcf9 MD |
613 | /* |
614 | * for SEEK_CUR: go to next packet. | |
615 | * for SEEK_POS: go to packet numer (index). | |
616 | */ | |
617 | void ctf_packet_seek(struct stream_pos *stream_pos, size_t index, int whence) | |
0f980a35 | 618 | { |
d6425aaf MD |
619 | struct ctf_stream_pos *pos = |
620 | container_of(stream_pos, struct ctf_stream_pos, parent); | |
75cc2c35 MD |
621 | struct ctf_file_stream *file_stream = |
622 | container_of(pos, struct ctf_file_stream, pos); | |
0f980a35 | 623 | int ret; |
8c572eba | 624 | off_t off; |
20d0dcf9 | 625 | struct packet_index *packet_index; |
0f980a35 | 626 | |
8c572eba MD |
627 | if (pos->prot == PROT_WRITE && pos->content_size_loc) |
628 | *pos->content_size_loc = pos->offset; | |
0f980a35 | 629 | |
aee35fcc | 630 | if (pos->base_mma) { |
0f980a35 | 631 | /* unmap old base */ |
aee35fcc | 632 | ret = munmap_align(pos->base_mma); |
0f980a35 | 633 | if (ret) { |
3394d22e | 634 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", |
0f980a35 MD |
635 | strerror(errno)); |
636 | assert(0); | |
637 | } | |
aee35fcc | 638 | pos->base_mma = NULL; |
0f980a35 MD |
639 | } |
640 | ||
8c572eba | 641 | /* |
46322b33 | 642 | * The caller should never ask for ctf_move_pos across packets, |
8c572eba MD |
643 | * except to get exactly at the beginning of the next packet. |
644 | */ | |
645 | if (pos->prot == PROT_WRITE) { | |
989c73bc MD |
646 | switch (whence) { |
647 | case SEEK_CUR: | |
648 | /* The writer will add padding */ | |
8c572eba | 649 | pos->mmap_offset += WRITE_PACKET_LEN / CHAR_BIT; |
989c73bc MD |
650 | break; |
651 | case SEEK_SET: | |
20d0dcf9 | 652 | assert(index == 0); /* only seek supported for now */ |
989c73bc MD |
653 | pos->cur_index = 0; |
654 | break; | |
655 | default: | |
656 | assert(0); | |
657 | } | |
8c572eba MD |
658 | pos->content_size = -1U; /* Unknown at this point */ |
659 | pos->packet_size = WRITE_PACKET_LEN; | |
989c73bc MD |
660 | off = posix_fallocate(pos->fd, pos->mmap_offset, |
661 | pos->packet_size / CHAR_BIT); | |
8c572eba | 662 | assert(off >= 0); |
847bf71a | 663 | pos->offset = 0; |
8c572eba | 664 | } else { |
5f643ed7 | 665 | read_next_packet: |
847bf71a MD |
666 | switch (whence) { |
667 | case SEEK_CUR: | |
41e82e00 | 668 | { |
4c4ba021 | 669 | uint64_t events_discarded_diff; |
41e82e00 | 670 | |
7d97fad9 MD |
671 | if (pos->offset == EOF) { |
672 | return; | |
673 | } | |
3217ac37 | 674 | /* For printing discarded event count */ |
03798a93 | 675 | packet_index = &g_array_index(pos->packet_cycles_index, |
41e82e00 | 676 | struct packet_index, pos->cur_index); |
03798a93 JD |
677 | file_stream->parent.prev_cycles_timestamp_end = |
678 | packet_index->timestamp_end; | |
679 | file_stream->parent.prev_cycles_timestamp = | |
680 | packet_index->timestamp_begin; | |
681 | ||
682 | packet_index = &g_array_index(pos->packet_real_index, | |
683 | struct packet_index, pos->cur_index); | |
684 | file_stream->parent.prev_real_timestamp_end = | |
20d0dcf9 | 685 | packet_index->timestamp_end; |
03798a93 JD |
686 | file_stream->parent.prev_real_timestamp = |
687 | packet_index->timestamp_begin; | |
688 | ||
689 | events_discarded_diff = packet_index->events_discarded; | |
41e82e00 | 690 | if (pos->cur_index > 0) { |
03798a93 | 691 | packet_index = &g_array_index(pos->packet_real_index, |
41e82e00 MD |
692 | struct packet_index, |
693 | pos->cur_index - 1); | |
20d0dcf9 | 694 | events_discarded_diff -= packet_index->events_discarded; |
4c4ba021 MD |
695 | /* |
696 | * Deal with 32-bit wrap-around if the | |
697 | * tracer provided a 32-bit field. | |
698 | */ | |
699 | if (packet_index->events_discarded_len == 32) { | |
700 | events_discarded_diff = (uint32_t) events_discarded_diff; | |
701 | } | |
41e82e00 | 702 | } |
fca04958 | 703 | file_stream->parent.events_discarded = events_discarded_diff; |
03798a93 JD |
704 | file_stream->parent.prev_real_timestamp = file_stream->parent.real_timestamp; |
705 | file_stream->parent.prev_cycles_timestamp = file_stream->parent.cycles_timestamp; | |
847bf71a | 706 | /* The reader will expect us to skip padding */ |
8c572eba | 707 | ++pos->cur_index; |
847bf71a | 708 | break; |
41e82e00 | 709 | } |
847bf71a | 710 | case SEEK_SET: |
20d0dcf9 | 711 | pos->cur_index = index; |
03798a93 JD |
712 | file_stream->parent.prev_real_timestamp = 0; |
713 | file_stream->parent.prev_real_timestamp_end = 0; | |
714 | file_stream->parent.prev_cycles_timestamp = 0; | |
715 | file_stream->parent.prev_cycles_timestamp_end = 0; | |
847bf71a MD |
716 | break; |
717 | default: | |
718 | assert(0); | |
719 | } | |
03798a93 | 720 | if (pos->cur_index >= pos->packet_real_index->len) { |
7d97fad9 MD |
721 | /* |
722 | * When a stream reaches the end of the | |
723 | * file, we need to show the number of | |
724 | * events discarded ourselves, because | |
725 | * there is no next event scheduled to | |
726 | * be printed in the output. | |
727 | */ | |
728 | if (file_stream->parent.events_discarded) { | |
badea1a2 JD |
729 | /* |
730 | * We need to check if we are in trace | |
731 | * read or called from packet indexing. | |
732 | * In this last case, the collection is | |
733 | * not there, so we cannot print the | |
734 | * timestamps. | |
735 | */ | |
736 | if ((&file_stream->parent)->stream_class->trace->collection) { | |
737 | fflush(stdout); | |
4c4ba021 | 738 | fprintf(stderr, "[warning] Tracer discarded %" PRIu64 " events at end of stream between [", |
badea1a2 | 739 | file_stream->parent.events_discarded); |
03798a93 JD |
740 | if (opt_clock_cycles) { |
741 | ctf_print_timestamp(stderr, | |
742 | &file_stream->parent, | |
743 | file_stream->parent.prev_cycles_timestamp); | |
744 | fprintf(stderr, "] and ["); | |
745 | ctf_print_timestamp(stderr, &file_stream->parent, | |
746 | file_stream->parent.prev_cycles_timestamp_end); | |
747 | } else { | |
748 | ctf_print_timestamp(stderr, | |
749 | &file_stream->parent, | |
750 | file_stream->parent.prev_real_timestamp); | |
751 | fprintf(stderr, "] and ["); | |
752 | ctf_print_timestamp(stderr, &file_stream->parent, | |
753 | file_stream->parent.prev_real_timestamp_end); | |
754 | } | |
a0b34fbb | 755 | fprintf(stderr, "]. You should consider recording a new trace with larger buffers or with fewer events enabled.\n"); |
badea1a2 JD |
756 | fflush(stderr); |
757 | } | |
7d97fad9 MD |
758 | file_stream->parent.events_discarded = 0; |
759 | } | |
670977d3 | 760 | pos->offset = EOF; |
847bf71a MD |
761 | return; |
762 | } | |
03798a93 JD |
763 | packet_index = &g_array_index(pos->packet_cycles_index, |
764 | struct packet_index, | |
765 | pos->cur_index); | |
766 | file_stream->parent.cycles_timestamp = packet_index->timestamp_begin; | |
767 | ||
768 | packet_index = &g_array_index(pos->packet_real_index, | |
769 | struct packet_index, | |
770 | pos->cur_index); | |
771 | file_stream->parent.real_timestamp = packet_index->timestamp_begin; | |
20d0dcf9 | 772 | pos->mmap_offset = packet_index->offset; |
8c572eba MD |
773 | |
774 | /* Lookup context/packet size in index */ | |
20d0dcf9 MD |
775 | pos->content_size = packet_index->content_size; |
776 | pos->packet_size = packet_index->packet_size; | |
777 | if (packet_index->data_offset < packet_index->content_size) { | |
75cc2c35 | 778 | pos->offset = 0; /* will read headers */ |
20d0dcf9 | 779 | } else if (packet_index->data_offset == packet_index->content_size) { |
5f643ed7 | 780 | /* empty packet */ |
20d0dcf9 | 781 | pos->offset = packet_index->data_offset; |
3abe83c7 | 782 | whence = SEEK_CUR; |
5f643ed7 | 783 | goto read_next_packet; |
7eda6fc7 | 784 | } else { |
2b9a764d MD |
785 | pos->offset = EOF; |
786 | return; | |
787 | } | |
8c572eba | 788 | } |
0f980a35 | 789 | /* map new base. Need mapping length from header. */ |
aee35fcc MD |
790 | pos->base_mma = mmap_align(pos->packet_size / CHAR_BIT, pos->prot, |
791 | pos->flags, pos->fd, pos->mmap_offset); | |
792 | if (pos->base_mma == MAP_FAILED) { | |
3394d22e | 793 | fprintf(stderr, "[error] mmap error %s.\n", |
847bf71a MD |
794 | strerror(errno)); |
795 | assert(0); | |
796 | } | |
75cc2c35 MD |
797 | |
798 | /* update trace_packet_header and stream_packet_context */ | |
2d0bea29 | 799 | if (pos->prot != PROT_WRITE && file_stream->parent.trace_packet_header) { |
75cc2c35 | 800 | /* Read packet header */ |
2d0bea29 | 801 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); |
75cc2c35 MD |
802 | assert(!ret); |
803 | } | |
2d0bea29 | 804 | if (pos->prot != PROT_WRITE && file_stream->parent.stream_packet_context) { |
75cc2c35 | 805 | /* Read packet context */ |
2d0bea29 | 806 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); |
75cc2c35 MD |
807 | assert(!ret); |
808 | } | |
0f980a35 MD |
809 | } |
810 | ||
b4c19c1e MD |
811 | static |
812 | int packet_metadata(struct ctf_trace *td, FILE *fp) | |
813 | { | |
814 | uint32_t magic; | |
815 | size_t len; | |
816 | int ret = 0; | |
817 | ||
818 | len = fread(&magic, sizeof(magic), 1, fp); | |
a0fe7d97 | 819 | if (len != 1) { |
b4c19c1e MD |
820 | goto end; |
821 | } | |
822 | if (magic == TSDL_MAGIC) { | |
823 | ret = 1; | |
824 | td->byte_order = BYTE_ORDER; | |
0d336fdf | 825 | CTF_TRACE_SET_FIELD(td, byte_order); |
b4c19c1e MD |
826 | } else if (magic == GUINT32_SWAP_LE_BE(TSDL_MAGIC)) { |
827 | ret = 1; | |
828 | td->byte_order = (BYTE_ORDER == BIG_ENDIAN) ? | |
829 | LITTLE_ENDIAN : BIG_ENDIAN; | |
0d336fdf | 830 | CTF_TRACE_SET_FIELD(td, byte_order); |
b4c19c1e MD |
831 | } |
832 | end: | |
833 | rewind(fp); | |
834 | return ret; | |
835 | } | |
836 | ||
5c262147 MD |
837 | /* |
838 | * Returns 0 on success, -1 on error. | |
839 | */ | |
840 | static | |
841 | int check_version(unsigned int major, unsigned int minor) | |
842 | { | |
843 | switch (major) { | |
844 | case 1: | |
845 | switch (minor) { | |
846 | case 8: | |
847 | return 0; | |
848 | default: | |
849 | goto warning; | |
850 | } | |
851 | default: | |
852 | goto warning; | |
853 | ||
854 | } | |
855 | ||
856 | /* eventually return an error instead of warning */ | |
857 | warning: | |
3394d22e | 858 | fprintf(stderr, "[warning] Unsupported CTF specification version %u.%u. Trying anyway.\n", |
5c262147 MD |
859 | major, minor); |
860 | return 0; | |
861 | } | |
862 | ||
b4c19c1e MD |
863 | static |
864 | int ctf_open_trace_metadata_packet_read(struct ctf_trace *td, FILE *in, | |
865 | FILE *out) | |
866 | { | |
867 | struct metadata_packet_header header; | |
a0fe7d97 | 868 | size_t readlen, writelen, toread; |
f8254867 | 869 | char buf[4096 + 1]; /* + 1 for debug-mode \0 */ |
b4c19c1e MD |
870 | int ret = 0; |
871 | ||
a91a962e | 872 | readlen = fread(&header, header_sizeof(header), 1, in); |
a0fe7d97 | 873 | if (readlen < 1) |
b4c19c1e MD |
874 | return -EINVAL; |
875 | ||
876 | if (td->byte_order != BYTE_ORDER) { | |
877 | header.magic = GUINT32_SWAP_LE_BE(header.magic); | |
878 | header.checksum = GUINT32_SWAP_LE_BE(header.checksum); | |
879 | header.content_size = GUINT32_SWAP_LE_BE(header.content_size); | |
880 | header.packet_size = GUINT32_SWAP_LE_BE(header.packet_size); | |
881 | } | |
882 | if (header.checksum) | |
3394d22e | 883 | fprintf(stderr, "[warning] checksum verification not supported yet.\n"); |
b4c19c1e | 884 | if (header.compression_scheme) { |
3394d22e | 885 | fprintf(stderr, "[error] compression (%u) not supported yet.\n", |
b4c19c1e MD |
886 | header.compression_scheme); |
887 | return -EINVAL; | |
888 | } | |
889 | if (header.encryption_scheme) { | |
3394d22e | 890 | fprintf(stderr, "[error] encryption (%u) not supported yet.\n", |
b4c19c1e MD |
891 | header.encryption_scheme); |
892 | return -EINVAL; | |
893 | } | |
894 | if (header.checksum_scheme) { | |
3394d22e | 895 | fprintf(stderr, "[error] checksum (%u) not supported yet.\n", |
b4c19c1e MD |
896 | header.checksum_scheme); |
897 | return -EINVAL; | |
898 | } | |
5c262147 MD |
899 | if (check_version(header.major, header.minor) < 0) |
900 | return -EINVAL; | |
b4c19c1e MD |
901 | if (!CTF_TRACE_FIELD_IS_SET(td, uuid)) { |
902 | memcpy(td->uuid, header.uuid, sizeof(header.uuid)); | |
903 | CTF_TRACE_SET_FIELD(td, uuid); | |
904 | } else { | |
43e34335 | 905 | if (babeltrace_uuid_compare(header.uuid, td->uuid)) |
b4c19c1e MD |
906 | return -EINVAL; |
907 | } | |
908 | ||
255b2138 | 909 | toread = (header.content_size / CHAR_BIT) - header_sizeof(header); |
a0fe7d97 MD |
910 | |
911 | for (;;) { | |
f8254867 | 912 | readlen = fread(buf, sizeof(char), min(sizeof(buf) - 1, toread), in); |
b4c19c1e MD |
913 | if (ferror(in)) { |
914 | ret = -EINVAL; | |
915 | break; | |
916 | } | |
4152822b | 917 | if (babeltrace_debug) { |
f8254867 | 918 | buf[readlen] = '\0'; |
3394d22e | 919 | fprintf(stderr, "[debug] metadata packet read: %s\n", |
4152822b MD |
920 | buf); |
921 | } | |
922 | ||
b4c19c1e MD |
923 | writelen = fwrite(buf, sizeof(char), readlen, out); |
924 | if (writelen < readlen) { | |
925 | ret = -EIO; | |
926 | break; | |
927 | } | |
928 | if (ferror(out)) { | |
929 | ret = -EINVAL; | |
930 | break; | |
931 | } | |
a0fe7d97 MD |
932 | toread -= readlen; |
933 | if (!toread) { | |
7f4b5c4d | 934 | ret = 0; /* continue reading next packet */ |
ddbc52af | 935 | goto read_padding; |
a0fe7d97 | 936 | } |
b4c19c1e MD |
937 | } |
938 | return ret; | |
ddbc52af MD |
939 | |
940 | read_padding: | |
941 | toread = (header.packet_size - header.content_size) / CHAR_BIT; | |
942 | ret = fseek(in, toread, SEEK_CUR); | |
943 | if (ret < 0) { | |
3394d22e | 944 | fprintf(stderr, "[warning] Missing padding at end of file\n"); |
ddbc52af MD |
945 | ret = 0; |
946 | } | |
947 | return ret; | |
b4c19c1e MD |
948 | } |
949 | ||
950 | static | |
951 | int ctf_open_trace_metadata_stream_read(struct ctf_trace *td, FILE **fp, | |
952 | char **buf) | |
953 | { | |
954 | FILE *in, *out; | |
955 | size_t size; | |
956 | int ret; | |
957 | ||
958 | in = *fp; | |
c4f5487e MD |
959 | /* |
960 | * Using strlen on *buf instead of size of open_memstream | |
961 | * because its size includes garbage at the end (after final | |
962 | * \0). This is the allocated size, not the actual string size. | |
963 | */ | |
f8370579 | 964 | out = babeltrace_open_memstream(buf, &size); |
a569a564 MD |
965 | if (out == NULL) { |
966 | perror("Metadata open_memstream"); | |
b4c19c1e | 967 | return -errno; |
a569a564 | 968 | } |
b4c19c1e MD |
969 | for (;;) { |
970 | ret = ctf_open_trace_metadata_packet_read(td, in, out); | |
7f4b5c4d | 971 | if (ret) { |
b4c19c1e | 972 | break; |
7f4b5c4d MD |
973 | } |
974 | if (feof(in)) { | |
975 | ret = 0; | |
b4c19c1e MD |
976 | break; |
977 | } | |
978 | } | |
f8370579 MD |
979 | /* close to flush the buffer */ |
980 | ret = babeltrace_close_memstream(buf, &size, out); | |
981 | if (ret < 0) { | |
982 | perror("babeltrace_flush_memstream"); | |
983 | fclose(in); | |
984 | return -errno; | |
985 | } | |
b4c19c1e MD |
986 | fclose(in); |
987 | /* open for reading */ | |
f8370579 | 988 | *fp = babeltrace_fmemopen(*buf, strlen(*buf), "rb"); |
a569a564 MD |
989 | if (!*fp) { |
990 | perror("Metadata fmemopen"); | |
991 | return -errno; | |
992 | } | |
b4c19c1e MD |
993 | return 0; |
994 | } | |
995 | ||
65102a8c | 996 | static |
b086c01a | 997 | int ctf_open_trace_metadata_read(struct ctf_trace *td, |
20d0dcf9 | 998 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
ae23d232 | 999 | int whence), FILE *metadata_fp) |
65102a8c MD |
1000 | { |
1001 | struct ctf_scanner *scanner; | |
2d0bea29 | 1002 | struct ctf_file_stream *metadata_stream; |
65102a8c | 1003 | FILE *fp; |
b4c19c1e | 1004 | char *buf = NULL; |
65102a8c MD |
1005 | int ret = 0; |
1006 | ||
2d0bea29 | 1007 | metadata_stream = g_new0(struct ctf_file_stream, 1); |
3a25e036 | 1008 | metadata_stream->pos.last_offset = LAST_OFFSET_POISON; |
b086c01a | 1009 | |
06789ffd MD |
1010 | if (packet_seek) { |
1011 | metadata_stream->pos.packet_seek = packet_seek; | |
b086c01a | 1012 | } else { |
06789ffd | 1013 | fprintf(stderr, "[error] packet_seek function undefined.\n"); |
b086c01a JD |
1014 | ret = -1; |
1015 | goto end_stream; | |
1016 | } | |
1017 | ||
ae23d232 JD |
1018 | if (metadata_fp) { |
1019 | fp = metadata_fp; | |
bcbfb8bf | 1020 | metadata_stream->pos.fd = -1; |
ae23d232 JD |
1021 | } else { |
1022 | td->metadata = &metadata_stream->parent; | |
1023 | metadata_stream->pos.fd = openat(td->dirfd, "metadata", O_RDONLY); | |
1024 | if (metadata_stream->pos.fd < 0) { | |
3394d22e | 1025 | fprintf(stderr, "Unable to open metadata.\n"); |
ae23d232 JD |
1026 | return metadata_stream->pos.fd; |
1027 | } | |
65102a8c | 1028 | |
ae23d232 JD |
1029 | fp = fdopen(metadata_stream->pos.fd, "r"); |
1030 | if (!fp) { | |
3394d22e | 1031 | fprintf(stderr, "[error] Unable to open metadata stream.\n"); |
a569a564 | 1032 | perror("Metadata stream open"); |
ae23d232 JD |
1033 | ret = -errno; |
1034 | goto end_stream; | |
1035 | } | |
1036 | } | |
65102a8c MD |
1037 | if (babeltrace_debug) |
1038 | yydebug = 1; | |
1039 | ||
b4c19c1e MD |
1040 | if (packet_metadata(td, fp)) { |
1041 | ret = ctf_open_trace_metadata_stream_read(td, &fp, &buf); | |
1042 | if (ret) | |
1043 | goto end_packet_read; | |
da75b0f7 | 1044 | } else { |
5c262147 MD |
1045 | unsigned int major, minor; |
1046 | ssize_t nr_items; | |
8c2df3f5 | 1047 | |
da75b0f7 | 1048 | td->byte_order = BYTE_ORDER; |
8c2df3f5 | 1049 | |
5c262147 MD |
1050 | /* Check text-only metadata header and version */ |
1051 | nr_items = fscanf(fp, "/* CTF %u.%u", &major, &minor); | |
1052 | if (nr_items < 2) | |
3394d22e | 1053 | fprintf(stderr, "[warning] Ill-shapen or missing \"/* CTF x.y\" header for text-only metadata.\n"); |
5c262147 MD |
1054 | if (check_version(major, minor) < 0) { |
1055 | ret = -EINVAL; | |
1056 | goto end_packet_read; | |
1057 | } | |
8c2df3f5 | 1058 | rewind(fp); |
b4c19c1e MD |
1059 | } |
1060 | ||
65102a8c MD |
1061 | scanner = ctf_scanner_alloc(fp); |
1062 | if (!scanner) { | |
3394d22e | 1063 | fprintf(stderr, "[error] Error allocating scanner\n"); |
65102a8c MD |
1064 | ret = -ENOMEM; |
1065 | goto end_scanner_alloc; | |
1066 | } | |
1067 | ret = ctf_scanner_append_ast(scanner); | |
1068 | if (ret) { | |
3394d22e | 1069 | fprintf(stderr, "[error] Error creating AST\n"); |
65102a8c MD |
1070 | goto end; |
1071 | } | |
1072 | ||
1073 | if (babeltrace_debug) { | |
3394d22e | 1074 | ret = ctf_visitor_print_xml(stderr, 0, &scanner->ast->root); |
65102a8c | 1075 | if (ret) { |
3394d22e | 1076 | fprintf(stderr, "[error] Error visiting AST for XML output\n"); |
65102a8c MD |
1077 | goto end; |
1078 | } | |
1079 | } | |
1080 | ||
3394d22e | 1081 | ret = ctf_visitor_semantic_check(stderr, 0, &scanner->ast->root); |
65102a8c | 1082 | if (ret) { |
3394d22e | 1083 | fprintf(stderr, "[error] Error in CTF semantic validation %d\n", ret); |
65102a8c MD |
1084 | goto end; |
1085 | } | |
3394d22e | 1086 | ret = ctf_visitor_construct_metadata(stderr, 0, &scanner->ast->root, |
ac5c6ca0 | 1087 | td, td->byte_order); |
65102a8c | 1088 | if (ret) { |
3394d22e | 1089 | fprintf(stderr, "[error] Error in CTF metadata constructor %d\n", ret); |
65102a8c MD |
1090 | goto end; |
1091 | } | |
1092 | end: | |
1093 | ctf_scanner_free(scanner); | |
1094 | end_scanner_alloc: | |
b4c19c1e | 1095 | end_packet_read: |
8210f9da MD |
1096 | if (fp) |
1097 | fclose(fp); | |
b4c19c1e | 1098 | free(buf); |
65102a8c | 1099 | end_stream: |
bcbfb8bf JD |
1100 | if (metadata_stream->pos.fd >= 0) |
1101 | close(metadata_stream->pos.fd); | |
2d0bea29 MD |
1102 | if (ret) |
1103 | g_free(metadata_stream); | |
0f980a35 MD |
1104 | return ret; |
1105 | } | |
1106 | ||
e28d4618 | 1107 | static |
c716f83b | 1108 | struct ctf_event_definition *create_event_definitions(struct ctf_trace *td, |
9e88d150 | 1109 | struct ctf_stream_definition *stream, |
4716614a | 1110 | struct ctf_event_declaration *event) |
e28d4618 | 1111 | { |
c716f83b | 1112 | struct ctf_event_definition *stream_event = g_new0(struct ctf_event_definition, 1); |
e28d4618 MD |
1113 | |
1114 | if (event->context_decl) { | |
1115 | struct definition *definition = | |
1116 | event->context_decl->p.definition_new(&event->context_decl->p, | |
1117 | stream->parent_def_scope, 0, 0, "event.context"); | |
1118 | if (!definition) { | |
1119 | goto error; | |
1120 | } | |
42dc00b7 | 1121 | stream_event->event_context = container_of(definition, |
e28d4618 | 1122 | struct definition_struct, p); |
42dc00b7 | 1123 | stream->parent_def_scope = stream_event->event_context->p.scope; |
e28d4618 MD |
1124 | } |
1125 | if (event->fields_decl) { | |
1126 | struct definition *definition = | |
1127 | event->fields_decl->p.definition_new(&event->fields_decl->p, | |
1128 | stream->parent_def_scope, 0, 0, "event.fields"); | |
1129 | if (!definition) { | |
1130 | goto error; | |
1131 | } | |
42dc00b7 | 1132 | stream_event->event_fields = container_of(definition, |
e28d4618 | 1133 | struct definition_struct, p); |
42dc00b7 | 1134 | stream->parent_def_scope = stream_event->event_fields->p.scope; |
e28d4618 | 1135 | } |
d3ded99d | 1136 | stream_event->stream = stream; |
42dc00b7 | 1137 | return stream_event; |
e28d4618 MD |
1138 | |
1139 | error: | |
42dc00b7 MD |
1140 | if (stream_event->event_fields) |
1141 | definition_unref(&stream_event->event_fields->p); | |
1142 | if (stream_event->event_context) | |
1143 | definition_unref(&stream_event->event_context->p); | |
e28d4618 MD |
1144 | return NULL; |
1145 | } | |
1146 | ||
1147 | static | |
9e88d150 | 1148 | int create_stream_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream) |
e28d4618 | 1149 | { |
f380e105 | 1150 | struct ctf_stream_declaration *stream_class; |
e28d4618 MD |
1151 | int ret; |
1152 | int i; | |
1153 | ||
1154 | if (stream->stream_definitions_created) | |
1155 | return 0; | |
1156 | ||
1157 | stream_class = stream->stream_class; | |
1158 | ||
1159 | if (stream_class->packet_context_decl) { | |
1160 | struct definition *definition = | |
1161 | stream_class->packet_context_decl->p.definition_new(&stream_class->packet_context_decl->p, | |
1162 | stream->parent_def_scope, 0, 0, "stream.packet.context"); | |
1163 | if (!definition) { | |
1164 | ret = -EINVAL; | |
1165 | goto error; | |
1166 | } | |
1167 | stream->stream_packet_context = container_of(definition, | |
1168 | struct definition_struct, p); | |
1169 | stream->parent_def_scope = stream->stream_packet_context->p.scope; | |
1170 | } | |
1171 | if (stream_class->event_header_decl) { | |
1172 | struct definition *definition = | |
1173 | stream_class->event_header_decl->p.definition_new(&stream_class->event_header_decl->p, | |
1174 | stream->parent_def_scope, 0, 0, "stream.event.header"); | |
1175 | if (!definition) { | |
1176 | ret = -EINVAL; | |
1177 | goto error; | |
1178 | } | |
1179 | stream->stream_event_header = | |
1180 | container_of(definition, struct definition_struct, p); | |
1181 | stream->parent_def_scope = stream->stream_event_header->p.scope; | |
1182 | } | |
1183 | if (stream_class->event_context_decl) { | |
1184 | struct definition *definition = | |
1185 | stream_class->event_context_decl->p.definition_new(&stream_class->event_context_decl->p, | |
1186 | stream->parent_def_scope, 0, 0, "stream.event.context"); | |
1187 | if (!definition) { | |
1188 | ret = -EINVAL; | |
1189 | goto error; | |
1190 | } | |
1191 | stream->stream_event_context = | |
1192 | container_of(definition, struct definition_struct, p); | |
1193 | stream->parent_def_scope = stream->stream_event_context->p.scope; | |
1194 | } | |
1195 | stream->events_by_id = g_ptr_array_new(); | |
1196 | g_ptr_array_set_size(stream->events_by_id, stream_class->events_by_id->len); | |
1197 | for (i = 0; i < stream->events_by_id->len; i++) { | |
4716614a | 1198 | struct ctf_event_declaration *event = g_ptr_array_index(stream_class->events_by_id, i); |
c716f83b | 1199 | struct ctf_event_definition *stream_event; |
e28d4618 MD |
1200 | |
1201 | if (!event) | |
1202 | continue; | |
42dc00b7 MD |
1203 | stream_event = create_event_definitions(td, stream, event); |
1204 | if (!stream_event) | |
e28d4618 | 1205 | goto error_event; |
42dc00b7 | 1206 | g_ptr_array_index(stream->events_by_id, i) = stream_event; |
e28d4618 MD |
1207 | } |
1208 | return 0; | |
1209 | ||
1210 | error_event: | |
1211 | for (i = 0; i < stream->events_by_id->len; i++) { | |
c716f83b | 1212 | struct ctf_event_definition *stream_event = g_ptr_array_index(stream->events_by_id, i); |
42dc00b7 MD |
1213 | if (stream_event) |
1214 | g_free(stream_event); | |
e28d4618 MD |
1215 | } |
1216 | g_ptr_array_free(stream->events_by_id, TRUE); | |
1217 | error: | |
1218 | if (stream->stream_event_context) | |
1219 | definition_unref(&stream->stream_event_context->p); | |
1220 | if (stream->stream_event_header) | |
1221 | definition_unref(&stream->stream_event_header->p); | |
1222 | if (stream->stream_packet_context) | |
1223 | definition_unref(&stream->stream_packet_context->p); | |
1224 | return ret; | |
1225 | } | |
1226 | ||
0f980a35 MD |
1227 | |
1228 | static | |
46322b33 | 1229 | int create_stream_packet_index(struct ctf_trace *td, |
0f980a35 MD |
1230 | struct ctf_file_stream *file_stream) |
1231 | { | |
f380e105 | 1232 | struct ctf_stream_declaration *stream; |
0f980a35 | 1233 | int len_index; |
46322b33 | 1234 | struct ctf_stream_pos *pos; |
0f980a35 MD |
1235 | struct stat filestats; |
1236 | struct packet_index packet_index; | |
1237 | int first_packet = 1; | |
1238 | int ret; | |
1239 | ||
1240 | pos = &file_stream->pos; | |
1241 | ||
1242 | ret = fstat(pos->fd, &filestats); | |
1243 | if (ret < 0) | |
1244 | return ret; | |
1245 | ||
8895362d MD |
1246 | if (filestats.st_size < MAX_PACKET_HEADER_LEN / CHAR_BIT) |
1247 | return -EINVAL; | |
1248 | ||
0f980a35 MD |
1249 | for (pos->mmap_offset = 0; pos->mmap_offset < filestats.st_size; ) { |
1250 | uint64_t stream_id = 0; | |
1251 | ||
aee35fcc | 1252 | if (pos->base_mma) { |
0f980a35 | 1253 | /* unmap old base */ |
aee35fcc | 1254 | ret = munmap_align(pos->base_mma); |
0f980a35 | 1255 | if (ret) { |
3394d22e | 1256 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", |
0f980a35 MD |
1257 | strerror(errno)); |
1258 | return ret; | |
1259 | } | |
aee35fcc | 1260 | pos->base_mma = NULL; |
0f980a35 MD |
1261 | } |
1262 | /* map new base. Need mapping length from header. */ | |
aee35fcc | 1263 | pos->base_mma = mmap_align(MAX_PACKET_HEADER_LEN / CHAR_BIT, PROT_READ, |
0f980a35 | 1264 | MAP_PRIVATE, pos->fd, pos->mmap_offset); |
aee35fcc | 1265 | assert(pos->base_mma != MAP_FAILED); |
dc48ecad MD |
1266 | pos->content_size = MAX_PACKET_HEADER_LEN; /* Unknown at this point */ |
1267 | pos->packet_size = MAX_PACKET_HEADER_LEN; /* Unknown at this point */ | |
0f980a35 MD |
1268 | pos->offset = 0; /* Position of the packet header */ |
1269 | ||
8c572eba MD |
1270 | packet_index.offset = pos->mmap_offset; |
1271 | packet_index.content_size = 0; | |
1272 | packet_index.packet_size = 0; | |
75cc2c35 MD |
1273 | packet_index.timestamp_begin = 0; |
1274 | packet_index.timestamp_end = 0; | |
41e82e00 | 1275 | packet_index.events_discarded = 0; |
8c572eba | 1276 | |
0f980a35 | 1277 | /* read and check header, set stream id (and check) */ |
2d0bea29 | 1278 | if (file_stream->parent.trace_packet_header) { |
0f980a35 | 1279 | /* Read packet header */ |
2d0bea29 | 1280 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); |
c5e74408 MD |
1281 | if (ret) |
1282 | return ret; | |
2d0bea29 | 1283 | len_index = struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("magic")); |
0f980a35 | 1284 | if (len_index >= 0) { |
b1a2f580 | 1285 | struct definition *field; |
f4c56ac2 | 1286 | uint64_t magic; |
0f980a35 | 1287 | |
2d0bea29 | 1288 | field = struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
f4c56ac2 MD |
1289 | magic = get_unsigned_int(field); |
1290 | if (magic != CTF_MAGIC) { | |
3394d22e | 1291 | fprintf(stderr, "[error] Invalid magic number 0x%" PRIX64 " at packet %u (file offset %zd).\n", |
f4c56ac2 | 1292 | magic, |
03798a93 | 1293 | file_stream->pos.packet_cycles_index->len, |
8c572eba | 1294 | (ssize_t) pos->mmap_offset); |
0f980a35 MD |
1295 | return -EINVAL; |
1296 | } | |
1297 | } | |
1298 | ||
1299 | /* check uuid */ | |
2d0bea29 | 1300 | len_index = struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("uuid")); |
0f980a35 MD |
1301 | if (len_index >= 0) { |
1302 | struct definition_array *defarray; | |
b1a2f580 | 1303 | struct definition *field; |
0f980a35 | 1304 | uint64_t i; |
43e34335 | 1305 | uint8_t uuidval[BABELTRACE_UUID_LEN]; |
0f980a35 | 1306 | |
2d0bea29 | 1307 | field = struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
b1a2f580 MD |
1308 | assert(field->declaration->id == CTF_TYPE_ARRAY); |
1309 | defarray = container_of(field, struct definition_array, p); | |
43e34335 | 1310 | assert(array_len(defarray) == BABELTRACE_UUID_LEN); |
0f980a35 | 1311 | |
43e34335 | 1312 | for (i = 0; i < BABELTRACE_UUID_LEN; i++) { |
0f980a35 | 1313 | struct definition *elem; |
0f980a35 MD |
1314 | |
1315 | elem = array_index(defarray, i); | |
f4c56ac2 | 1316 | uuidval[i] = get_unsigned_int(elem); |
0f980a35 | 1317 | } |
43e34335 | 1318 | ret = babeltrace_uuid_compare(td->uuid, uuidval); |
0f980a35 | 1319 | if (ret) { |
3394d22e | 1320 | fprintf(stderr, "[error] Unique Universal Identifiers do not match.\n"); |
0f980a35 MD |
1321 | return -EINVAL; |
1322 | } | |
1323 | } | |
1324 | ||
1325 | ||
2d0bea29 | 1326 | len_index = struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("stream_id")); |
0f980a35 | 1327 | if (len_index >= 0) { |
b1a2f580 | 1328 | struct definition *field; |
0f980a35 | 1329 | |
2d0bea29 | 1330 | field = struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
f4c56ac2 | 1331 | stream_id = get_unsigned_int(field); |
0f980a35 MD |
1332 | } |
1333 | } | |
1334 | ||
2d0bea29 | 1335 | if (!first_packet && file_stream->parent.stream_id != stream_id) { |
3394d22e | 1336 | fprintf(stderr, "[error] Stream ID is changing within a stream.\n"); |
0f980a35 MD |
1337 | return -EINVAL; |
1338 | } | |
1339 | if (first_packet) { | |
2d0bea29 | 1340 | file_stream->parent.stream_id = stream_id; |
46322b33 | 1341 | if (stream_id >= td->streams->len) { |
3394d22e | 1342 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); |
0f980a35 MD |
1343 | return -EINVAL; |
1344 | } | |
46322b33 | 1345 | stream = g_ptr_array_index(td->streams, stream_id); |
0f980a35 | 1346 | if (!stream) { |
3394d22e | 1347 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); |
0f980a35 MD |
1348 | return -EINVAL; |
1349 | } | |
2d0bea29 | 1350 | file_stream->parent.stream_class = stream; |
01c76b24 | 1351 | ret = create_stream_definitions(td, &file_stream->parent); |
862434ec MD |
1352 | if (ret) |
1353 | return ret; | |
0f980a35 MD |
1354 | } |
1355 | first_packet = 0; | |
1356 | ||
2d0bea29 | 1357 | if (file_stream->parent.stream_packet_context) { |
dc48ecad | 1358 | /* Read packet context */ |
2d0bea29 | 1359 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); |
c5e74408 MD |
1360 | if (ret) |
1361 | return ret; | |
dc48ecad | 1362 | /* read content size from header */ |
2d0bea29 | 1363 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("content_size")); |
dc48ecad | 1364 | if (len_index >= 0) { |
b1a2f580 | 1365 | struct definition *field; |
dc48ecad | 1366 | |
2d0bea29 | 1367 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
f4c56ac2 | 1368 | packet_index.content_size = get_unsigned_int(field); |
dc48ecad MD |
1369 | } else { |
1370 | /* Use file size for packet size */ | |
8c572eba | 1371 | packet_index.content_size = filestats.st_size * CHAR_BIT; |
dc48ecad MD |
1372 | } |
1373 | ||
1374 | /* read packet size from header */ | |
2d0bea29 | 1375 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("packet_size")); |
dc48ecad | 1376 | if (len_index >= 0) { |
b1a2f580 | 1377 | struct definition *field; |
dc48ecad | 1378 | |
2d0bea29 | 1379 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
f4c56ac2 | 1380 | packet_index.packet_size = get_unsigned_int(field); |
dc48ecad MD |
1381 | } else { |
1382 | /* Use content size if non-zero, else file size */ | |
8c572eba | 1383 | packet_index.packet_size = packet_index.content_size ? : filestats.st_size * CHAR_BIT; |
dc48ecad | 1384 | } |
75cc2c35 MD |
1385 | |
1386 | /* read timestamp begin from header */ | |
2d0bea29 | 1387 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_begin")); |
75cc2c35 | 1388 | if (len_index >= 0) { |
75cc2c35 MD |
1389 | struct definition *field; |
1390 | ||
2d0bea29 | 1391 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
f4c56ac2 | 1392 | packet_index.timestamp_begin = get_unsigned_int(field); |
03798a93 JD |
1393 | if (file_stream->parent.stream_class->trace->collection) { |
1394 | packet_index.timestamp_begin = | |
1395 | ctf_get_real_timestamp( | |
1396 | &file_stream->parent, | |
1397 | packet_index.timestamp_begin); | |
1398 | } | |
75cc2c35 MD |
1399 | } |
1400 | ||
1401 | /* read timestamp end from header */ | |
2d0bea29 | 1402 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_end")); |
75cc2c35 | 1403 | if (len_index >= 0) { |
75cc2c35 MD |
1404 | struct definition *field; |
1405 | ||
2d0bea29 | 1406 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
f4c56ac2 | 1407 | packet_index.timestamp_end = get_unsigned_int(field); |
03798a93 JD |
1408 | if (file_stream->parent.stream_class->trace->collection) { |
1409 | packet_index.timestamp_end = | |
1410 | ctf_get_real_timestamp( | |
1411 | &file_stream->parent, | |
1412 | packet_index.timestamp_end); | |
1413 | } | |
75cc2c35 | 1414 | } |
41e82e00 MD |
1415 | |
1416 | /* read events discarded from header */ | |
1417 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("events_discarded")); | |
1418 | if (len_index >= 0) { | |
1419 | struct definition *field; | |
1420 | ||
1421 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); | |
1422 | packet_index.events_discarded = get_unsigned_int(field); | |
4c4ba021 | 1423 | packet_index.events_discarded_len = get_int_len(field); |
41e82e00 | 1424 | } |
0f980a35 MD |
1425 | } else { |
1426 | /* Use file size for packet size */ | |
8c572eba | 1427 | packet_index.content_size = filestats.st_size * CHAR_BIT; |
0f980a35 | 1428 | /* Use content size if non-zero, else file size */ |
8c572eba | 1429 | packet_index.packet_size = packet_index.content_size ? : filestats.st_size * CHAR_BIT; |
0f980a35 | 1430 | } |
546293fa MD |
1431 | |
1432 | /* Validate content size and packet size values */ | |
1433 | if (packet_index.content_size > packet_index.packet_size) { | |
7e18eedf | 1434 | fprintf(stderr, "[error] Content size (%" PRIu64 " bits) is larger than packet size (%" PRIu64 " bits).\n", |
546293fa MD |
1435 | packet_index.content_size, packet_index.packet_size); |
1436 | return -EINVAL; | |
1437 | } | |
1438 | ||
7e18eedf JN |
1439 | if (packet_index.packet_size > ((uint64_t)filestats.st_size - packet_index.offset) * CHAR_BIT) { |
1440 | fprintf(stderr, "[error] Packet size (%" PRIu64 " bits) is larger than remaining file size (%" PRIu64 " bits).\n", | |
0fe3c2c9 | 1441 | packet_index.packet_size, ((uint64_t)filestats.st_size - packet_index.offset) * CHAR_BIT); |
546293fa MD |
1442 | return -EINVAL; |
1443 | } | |
1444 | ||
847bf71a MD |
1445 | /* Save position after header and context */ |
1446 | packet_index.data_offset = pos->offset; | |
0f980a35 | 1447 | |
0f980a35 | 1448 | /* add index to packet array */ |
03798a93 | 1449 | g_array_append_val(file_stream->pos.packet_cycles_index, packet_index); |
0f980a35 | 1450 | |
8c572eba | 1451 | pos->mmap_offset += packet_index.packet_size / CHAR_BIT; |
0f980a35 MD |
1452 | } |
1453 | ||
1454 | return 0; | |
1455 | } | |
1456 | ||
e28d4618 | 1457 | static |
9e88d150 | 1458 | int create_trace_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream) |
e28d4618 MD |
1459 | { |
1460 | int ret; | |
1461 | ||
1462 | if (td->packet_header_decl) { | |
1463 | struct definition *definition = | |
1464 | td->packet_header_decl->p.definition_new(&td->packet_header_decl->p, | |
1465 | stream->parent_def_scope, 0, 0, "trace.packet.header"); | |
1466 | if (!definition) { | |
1467 | ret = -EINVAL; | |
1468 | goto error; | |
1469 | } | |
1470 | stream->trace_packet_header = | |
1471 | container_of(definition, struct definition_struct, p); | |
1472 | stream->parent_def_scope = stream->trace_packet_header->p.scope; | |
1473 | } | |
1474 | ||
1475 | return 0; | |
1476 | ||
1477 | error: | |
1478 | return ret; | |
1479 | } | |
1480 | ||
0f980a35 MD |
1481 | /* |
1482 | * Note: many file streams can inherit from the same stream class | |
1483 | * description (metadata). | |
1484 | */ | |
1485 | static | |
b086c01a | 1486 | int ctf_open_file_stream_read(struct ctf_trace *td, const char *path, int flags, |
20d0dcf9 | 1487 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
b086c01a | 1488 | int whence)) |
0f980a35 | 1489 | { |
ff075710 | 1490 | int ret, fd; |
0f980a35 | 1491 | struct ctf_file_stream *file_stream; |
ff075710 | 1492 | struct stat statbuf; |
0f980a35 | 1493 | |
ff075710 MD |
1494 | fd = openat(td->dirfd, path, flags); |
1495 | if (fd < 0) { | |
a569a564 | 1496 | perror("File stream openat()"); |
ff075710 | 1497 | ret = fd; |
0f980a35 | 1498 | goto error; |
a569a564 | 1499 | } |
ff075710 MD |
1500 | |
1501 | /* Don't try to mmap subdirectories. Skip them, return success. */ | |
1502 | ret = fstat(fd, &statbuf); | |
1503 | if (ret) { | |
1504 | perror("File stream fstat()"); | |
1505 | goto fstat_error; | |
1506 | } | |
1507 | if (S_ISDIR(statbuf.st_mode)) { | |
1508 | fprintf(stderr, "[warning] Skipping directory '%s' found in trace\n", path); | |
1509 | ret = 0; | |
1510 | goto fd_is_dir_ok; | |
1511 | } | |
1512 | ||
0f980a35 | 1513 | file_stream = g_new0(struct ctf_file_stream, 1); |
3a25e036 | 1514 | file_stream->pos.last_offset = LAST_OFFSET_POISON; |
b086c01a | 1515 | |
06789ffd MD |
1516 | if (packet_seek) { |
1517 | file_stream->pos.packet_seek = packet_seek; | |
b086c01a | 1518 | } else { |
06789ffd | 1519 | fprintf(stderr, "[error] packet_seek function undefined.\n"); |
b086c01a JD |
1520 | ret = -1; |
1521 | goto error_def; | |
1522 | } | |
1523 | ||
ff075710 | 1524 | ctf_init_pos(&file_stream->pos, fd, flags); |
2d0bea29 | 1525 | ret = create_trace_definitions(td, &file_stream->parent); |
e28d4618 MD |
1526 | if (ret) |
1527 | goto error_def; | |
25ccc85b MD |
1528 | /* |
1529 | * For now, only a single slock is supported. | |
1530 | */ | |
1531 | file_stream->parent.current_clock = td->single_clock; | |
0f980a35 MD |
1532 | ret = create_stream_packet_index(td, file_stream); |
1533 | if (ret) | |
1534 | goto error_index; | |
1535 | /* Add stream file to stream class */ | |
2d0bea29 MD |
1536 | g_ptr_array_add(file_stream->parent.stream_class->streams, |
1537 | &file_stream->parent); | |
0f980a35 MD |
1538 | return 0; |
1539 | ||
1540 | error_index: | |
2d0bea29 MD |
1541 | if (file_stream->parent.trace_packet_header) |
1542 | definition_unref(&file_stream->parent.trace_packet_header->p); | |
e28d4618 | 1543 | error_def: |
46322b33 | 1544 | ctf_fini_pos(&file_stream->pos); |
0f980a35 | 1545 | g_free(file_stream); |
ff075710 MD |
1546 | fd_is_dir_ok: |
1547 | fstat_error: | |
1548 | close(fd); | |
0f980a35 | 1549 | error: |
65102a8c MD |
1550 | return ret; |
1551 | } | |
1552 | ||
bbefb8dd | 1553 | static |
5b80ddfb | 1554 | int ctf_open_trace_read(struct ctf_trace *td, |
8c250d87 | 1555 | const char *path, int flags, |
20d0dcf9 | 1556 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
ae23d232 | 1557 | int whence), FILE *metadata_fp) |
bbefb8dd MD |
1558 | { |
1559 | int ret; | |
65102a8c MD |
1560 | struct dirent *dirent; |
1561 | struct dirent *diriter; | |
1562 | size_t dirent_len; | |
bbefb8dd | 1563 | |
46322b33 | 1564 | td->flags = flags; |
bbefb8dd MD |
1565 | |
1566 | /* Open trace directory */ | |
46322b33 MD |
1567 | td->dir = opendir(path); |
1568 | if (!td->dir) { | |
6a6b384c | 1569 | fprintf(stderr, "[error] Unable to open trace directory \"%s\".\n", path); |
bbefb8dd MD |
1570 | ret = -ENOENT; |
1571 | goto error; | |
1572 | } | |
1573 | ||
46322b33 MD |
1574 | td->dirfd = open(path, 0); |
1575 | if (td->dirfd < 0) { | |
6a6b384c | 1576 | fprintf(stderr, "[error] Unable to open trace directory file descriptor for path \"%s\".\n", path); |
a569a564 MD |
1577 | perror("Trace directory open"); |
1578 | ret = -errno; | |
65102a8c MD |
1579 | goto error_dirfd; |
1580 | } | |
5b80ddfb MD |
1581 | strncpy(td->path, path, sizeof(td->path)); |
1582 | td->path[sizeof(td->path) - 1] = '\0'; | |
0f980a35 | 1583 | |
65102a8c MD |
1584 | /* |
1585 | * Keep the metadata file separate. | |
1586 | */ | |
bbefb8dd | 1587 | |
06789ffd | 1588 | ret = ctf_open_trace_metadata_read(td, packet_seek, metadata_fp); |
65102a8c | 1589 | if (ret) { |
6a6b384c | 1590 | fprintf(stderr, "[warning] Unable to open trace metadata for path \"%s\".\n", path); |
65102a8c MD |
1591 | goto error_metadata; |
1592 | } | |
bbefb8dd MD |
1593 | |
1594 | /* | |
1595 | * Open each stream: for each file, try to open, check magic | |
1596 | * number, and get the stream ID to add to the right location in | |
1597 | * the stream array. | |
bbefb8dd MD |
1598 | */ |
1599 | ||
65102a8c | 1600 | dirent_len = offsetof(struct dirent, d_name) + |
46322b33 | 1601 | fpathconf(td->dirfd, _PC_NAME_MAX) + 1; |
bbefb8dd | 1602 | |
65102a8c | 1603 | dirent = malloc(dirent_len); |
bbefb8dd | 1604 | |
65102a8c | 1605 | for (;;) { |
46322b33 | 1606 | ret = readdir_r(td->dir, dirent, &diriter); |
65102a8c | 1607 | if (ret) { |
3394d22e | 1608 | fprintf(stderr, "[error] Readdir error.\n"); |
65102a8c | 1609 | goto readdir_error; |
65102a8c MD |
1610 | } |
1611 | if (!diriter) | |
1612 | break; | |
d8ea2d29 MD |
1613 | /* Ignore hidden files, ., .. and metadata. */ |
1614 | if (!strncmp(diriter->d_name, ".", 1) | |
65102a8c MD |
1615 | || !strcmp(diriter->d_name, "..") |
1616 | || !strcmp(diriter->d_name, "metadata")) | |
1617 | continue; | |
06789ffd MD |
1618 | ret = ctf_open_file_stream_read(td, diriter->d_name, |
1619 | flags, packet_seek); | |
dc48ecad | 1620 | if (ret) { |
3394d22e | 1621 | fprintf(stderr, "[error] Open file stream error.\n"); |
dc48ecad MD |
1622 | goto readdir_error; |
1623 | } | |
65102a8c | 1624 | } |
bbefb8dd | 1625 | |
65102a8c | 1626 | free(dirent); |
bbefb8dd | 1627 | return 0; |
65102a8c MD |
1628 | |
1629 | readdir_error: | |
1630 | free(dirent); | |
1631 | error_metadata: | |
46322b33 | 1632 | close(td->dirfd); |
65102a8c | 1633 | error_dirfd: |
46322b33 | 1634 | closedir(td->dir); |
bbefb8dd MD |
1635 | error: |
1636 | return ret; | |
1637 | } | |
1638 | ||
03798a93 JD |
1639 | /* |
1640 | * ctf_open_trace: Open a CTF trace and index it. | |
1641 | * Note that the user must seek the trace after the open (using the iterator) | |
1642 | * since the index creation read it entirely. | |
1643 | */ | |
e9378815 | 1644 | static |
5b80ddfb | 1645 | struct trace_descriptor *ctf_open_trace(const char *path, int flags, |
20d0dcf9 | 1646 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
ae23d232 | 1647 | int whence), FILE *metadata_fp) |
bbefb8dd | 1648 | { |
46322b33 | 1649 | struct ctf_trace *td; |
bbefb8dd MD |
1650 | int ret; |
1651 | ||
2715de36 MD |
1652 | /* |
1653 | * If packet_seek is NULL, we provide our default version. | |
1654 | */ | |
1655 | if (!packet_seek) | |
1656 | packet_seek = ctf_packet_seek; | |
1657 | ||
46322b33 | 1658 | td = g_new0(struct ctf_trace, 1); |
bbefb8dd | 1659 | |
8c572eba | 1660 | switch (flags & O_ACCMODE) { |
bbefb8dd | 1661 | case O_RDONLY: |
b61922b5 | 1662 | if (!path) { |
3394d22e | 1663 | fprintf(stderr, "[error] Path missing for input CTF trace.\n"); |
b61922b5 MD |
1664 | goto error; |
1665 | } | |
06789ffd | 1666 | ret = ctf_open_trace_read(td, path, flags, packet_seek, metadata_fp); |
bbefb8dd MD |
1667 | if (ret) |
1668 | goto error; | |
1669 | break; | |
989c73bc | 1670 | case O_RDWR: |
3394d22e | 1671 | fprintf(stderr, "[error] Opening CTF traces for output is not supported yet.\n"); |
46322b33 | 1672 | goto error; |
bbefb8dd | 1673 | default: |
3394d22e | 1674 | fprintf(stderr, "[error] Incorrect open flags.\n"); |
bbefb8dd MD |
1675 | goto error; |
1676 | } | |
1677 | ||
46322b33 | 1678 | return &td->parent; |
bbefb8dd MD |
1679 | error: |
1680 | g_free(td); | |
1681 | return NULL; | |
1682 | } | |
1683 | ||
f571dfb1 JD |
1684 | |
1685 | void ctf_init_mmap_pos(struct ctf_stream_pos *pos, | |
1686 | struct mmap_stream *mmap_info) | |
1687 | { | |
1688 | pos->mmap_offset = 0; | |
1689 | pos->packet_size = 0; | |
1690 | pos->content_size = 0; | |
1691 | pos->content_size_loc = NULL; | |
1692 | pos->fd = mmap_info->fd; | |
aee35fcc | 1693 | pos->base_mma = NULL; |
f571dfb1 JD |
1694 | pos->offset = 0; |
1695 | pos->dummy = false; | |
1696 | pos->cur_index = 0; | |
03798a93 JD |
1697 | pos->packet_cycles_index = NULL; |
1698 | pos->packet_real_index = NULL; | |
f571dfb1 JD |
1699 | pos->prot = PROT_READ; |
1700 | pos->flags = MAP_PRIVATE; | |
1701 | pos->parent.rw_table = read_dispatch_table; | |
1702 | pos->parent.event_cb = ctf_read_event; | |
1703 | } | |
1704 | ||
1705 | static | |
1706 | int prepare_mmap_stream_definition(struct ctf_trace *td, | |
1707 | struct ctf_file_stream *file_stream) | |
1708 | { | |
f380e105 | 1709 | struct ctf_stream_declaration *stream; |
f571dfb1 JD |
1710 | uint64_t stream_id = 0; |
1711 | int ret; | |
1712 | ||
1713 | file_stream->parent.stream_id = stream_id; | |
1714 | if (stream_id >= td->streams->len) { | |
3394d22e | 1715 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared " |
f571dfb1 JD |
1716 | "in metadata.\n", stream_id); |
1717 | ret = -EINVAL; | |
1718 | goto end; | |
1719 | } | |
1720 | stream = g_ptr_array_index(td->streams, stream_id); | |
1721 | if (!stream) { | |
3394d22e | 1722 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared " |
f571dfb1 JD |
1723 | "in metadata.\n", stream_id); |
1724 | ret = -EINVAL; | |
1725 | goto end; | |
1726 | } | |
1727 | file_stream->parent.stream_class = stream; | |
1728 | ret = create_stream_definitions(td, &file_stream->parent); | |
1729 | end: | |
1730 | return ret; | |
1731 | } | |
1732 | ||
1733 | static | |
1734 | int ctf_open_mmap_stream_read(struct ctf_trace *td, | |
1735 | struct mmap_stream *mmap_info, | |
20d0dcf9 | 1736 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
f571dfb1 JD |
1737 | int whence)) |
1738 | { | |
1739 | int ret; | |
1740 | struct ctf_file_stream *file_stream; | |
1741 | ||
1742 | file_stream = g_new0(struct ctf_file_stream, 1); | |
3a25e036 | 1743 | file_stream->pos.last_offset = LAST_OFFSET_POISON; |
f571dfb1 JD |
1744 | ctf_init_mmap_pos(&file_stream->pos, mmap_info); |
1745 | ||
06789ffd | 1746 | file_stream->pos.packet_seek = packet_seek; |
f571dfb1 JD |
1747 | |
1748 | ret = create_trace_definitions(td, &file_stream->parent); | |
1749 | if (ret) { | |
1750 | goto error_def; | |
1751 | } | |
1752 | ||
1753 | ret = prepare_mmap_stream_definition(td, file_stream); | |
1754 | if (ret) | |
1755 | goto error_index; | |
1756 | ||
f7bbd502 JD |
1757 | /* |
1758 | * For now, only a single slock is supported. | |
1759 | */ | |
1760 | file_stream->parent.current_clock = td->single_clock; | |
1761 | ||
f571dfb1 JD |
1762 | /* Add stream file to stream class */ |
1763 | g_ptr_array_add(file_stream->parent.stream_class->streams, | |
1764 | &file_stream->parent); | |
1765 | return 0; | |
1766 | ||
1767 | error_index: | |
1768 | if (file_stream->parent.trace_packet_header) | |
1769 | definition_unref(&file_stream->parent.trace_packet_header->p); | |
1770 | error_def: | |
1771 | g_free(file_stream); | |
1772 | return ret; | |
1773 | } | |
1774 | ||
1775 | int ctf_open_mmap_trace_read(struct ctf_trace *td, | |
1776 | struct mmap_stream_list *mmap_list, | |
20d0dcf9 | 1777 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
f571dfb1 JD |
1778 | int whence), |
1779 | FILE *metadata_fp) | |
1780 | { | |
1781 | int ret; | |
1782 | struct mmap_stream *mmap_info; | |
1783 | ||
06789ffd | 1784 | ret = ctf_open_trace_metadata_read(td, ctf_packet_seek, metadata_fp); |
f571dfb1 JD |
1785 | if (ret) { |
1786 | goto error; | |
1787 | } | |
1788 | ||
1789 | /* | |
1790 | * for each stream, try to open, check magic number, and get the | |
1791 | * stream ID to add to the right location in the stream array. | |
1792 | */ | |
3122e6f0 | 1793 | bt_list_for_each_entry(mmap_info, &mmap_list->head, list) { |
06789ffd | 1794 | ret = ctf_open_mmap_stream_read(td, mmap_info, packet_seek); |
f571dfb1 | 1795 | if (ret) { |
3394d22e | 1796 | fprintf(stderr, "[error] Open file mmap stream error.\n"); |
f571dfb1 JD |
1797 | goto error; |
1798 | } | |
1799 | } | |
1800 | ||
1801 | return 0; | |
1802 | ||
1803 | error: | |
1804 | return ret; | |
1805 | } | |
1806 | ||
1807 | static | |
1808 | struct trace_descriptor *ctf_open_mmap_trace( | |
1809 | struct mmap_stream_list *mmap_list, | |
20d0dcf9 MD |
1810 | void (*packet_seek)(struct stream_pos *pos, size_t index, |
1811 | int whence), | |
f571dfb1 JD |
1812 | FILE *metadata_fp) |
1813 | { | |
1814 | struct ctf_trace *td; | |
1815 | int ret; | |
1816 | ||
1817 | if (!metadata_fp) { | |
1818 | fprintf(stderr, "[error] No metadata file pointer associated, " | |
1819 | "required for mmap parsing\n"); | |
1820 | goto error; | |
1821 | } | |
06789ffd MD |
1822 | if (!packet_seek) { |
1823 | fprintf(stderr, "[error] packet_seek function undefined.\n"); | |
f571dfb1 JD |
1824 | goto error; |
1825 | } | |
1826 | td = g_new0(struct ctf_trace, 1); | |
06789ffd | 1827 | ret = ctf_open_mmap_trace_read(td, mmap_list, packet_seek, metadata_fp); |
f571dfb1 JD |
1828 | if (ret) |
1829 | goto error_free; | |
1830 | ||
1831 | return &td->parent; | |
1832 | ||
1833 | error_free: | |
1834 | g_free(td); | |
1835 | error: | |
1836 | return NULL; | |
1837 | } | |
1838 | ||
03798a93 JD |
1839 | static |
1840 | int ctf_convert_index_timestamp(struct trace_descriptor *tdp) | |
1841 | { | |
1842 | int i, j, k; | |
1843 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); | |
1844 | ||
1845 | /* for each stream_class */ | |
1846 | for (i = 0; i < td->streams->len; i++) { | |
1847 | struct ctf_stream_declaration *stream_class; | |
1848 | ||
1849 | stream_class = g_ptr_array_index(td->streams, i); | |
1850 | if (!stream_class) | |
1851 | continue; | |
1852 | /* for each file_stream */ | |
1853 | for (j = 0; j < stream_class->streams->len; j++) { | |
1854 | struct ctf_stream_definition *stream; | |
1855 | struct ctf_stream_pos *stream_pos; | |
1856 | struct ctf_file_stream *cfs; | |
1857 | ||
1858 | stream = g_ptr_array_index(stream_class->streams, j); | |
1859 | if (!stream) | |
1860 | continue; | |
1861 | cfs = container_of(stream, struct ctf_file_stream, | |
1862 | parent); | |
1863 | stream_pos = &cfs->pos; | |
afe9cd4a JD |
1864 | if (!stream_pos->packet_cycles_index) |
1865 | continue; | |
1866 | ||
03798a93 JD |
1867 | for (k = 0; k < stream_pos->packet_cycles_index->len; k++) { |
1868 | struct packet_index *index; | |
1869 | struct packet_index new_index; | |
1870 | ||
1871 | index = &g_array_index(stream_pos->packet_cycles_index, | |
1872 | struct packet_index, k); | |
1873 | memcpy(&new_index, index, | |
1874 | sizeof(struct packet_index)); | |
1875 | new_index.timestamp_begin = | |
1876 | ctf_get_real_timestamp(stream, | |
1877 | index->timestamp_begin); | |
1878 | new_index.timestamp_end = | |
1879 | ctf_get_real_timestamp(stream, | |
1880 | index->timestamp_end); | |
1881 | g_array_append_val(stream_pos->packet_real_index, | |
1882 | new_index); | |
1883 | } | |
1884 | } | |
1885 | } | |
1886 | return 0; | |
1887 | } | |
1888 | ||
0f980a35 MD |
1889 | static |
1890 | void ctf_close_file_stream(struct ctf_file_stream *file_stream) | |
1891 | { | |
46322b33 | 1892 | ctf_fini_pos(&file_stream->pos); |
0f980a35 MD |
1893 | close(file_stream->pos.fd); |
1894 | } | |
1895 | ||
e9378815 | 1896 | static |
46322b33 | 1897 | void ctf_close_trace(struct trace_descriptor *tdp) |
bbefb8dd | 1898 | { |
46322b33 | 1899 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); |
0f980a35 MD |
1900 | int i; |
1901 | ||
46322b33 MD |
1902 | if (td->streams) { |
1903 | for (i = 0; i < td->streams->len; i++) { | |
f380e105 | 1904 | struct ctf_stream_declaration *stream; |
0f980a35 | 1905 | int j; |
e9378815 | 1906 | |
46322b33 | 1907 | stream = g_ptr_array_index(td->streams, i); |
e9378815 MD |
1908 | if (!stream) |
1909 | continue; | |
2d0bea29 | 1910 | for (j = 0; j < stream->streams->len; j++) { |
0f980a35 | 1911 | struct ctf_file_stream *file_stream; |
2d0bea29 | 1912 | file_stream = container_of(g_ptr_array_index(stream->streams, j), struct ctf_file_stream, parent); |
0f980a35 MD |
1913 | ctf_close_file_stream(file_stream); |
1914 | } | |
1915 | ||
1916 | } | |
46322b33 | 1917 | g_ptr_array_free(td->streams, TRUE); |
0f980a35 | 1918 | } |
e003ab50 JD |
1919 | |
1920 | if (td->event_declarations) { | |
1921 | for (i = 0; i < td->event_declarations->len; i++) { | |
1922 | struct bt_ctf_event_decl *event; | |
1923 | ||
1924 | event = g_ptr_array_index(td->event_declarations, i); | |
64c2c249 JD |
1925 | if (event->context_decl) |
1926 | g_ptr_array_free(event->context_decl, TRUE); | |
1927 | if (event->fields_decl) | |
1928 | g_ptr_array_free(event->fields_decl, TRUE); | |
1929 | if (event->packet_header_decl) | |
1930 | g_ptr_array_free(event->packet_header_decl, TRUE); | |
1931 | if (event->event_context_decl) | |
1932 | g_ptr_array_free(event->event_context_decl, TRUE); | |
1933 | if (event->event_header_decl) | |
1934 | g_ptr_array_free(event->event_header_decl, TRUE); | |
1935 | if (event->packet_context_decl) | |
1936 | g_ptr_array_free(event->packet_context_decl, TRUE); | |
e003ab50 JD |
1937 | g_free(event); |
1938 | } | |
1939 | g_ptr_array_free(td->event_declarations, TRUE); | |
1940 | } | |
46322b33 | 1941 | closedir(td->dir); |
bbefb8dd MD |
1942 | g_free(td); |
1943 | } | |
1944 | ||
98a04903 JD |
1945 | static |
1946 | void ctf_set_context(struct trace_descriptor *descriptor, | |
1947 | struct bt_context *ctx) | |
1948 | { | |
1949 | struct ctf_trace *td = container_of(descriptor, struct ctf_trace, | |
1950 | parent); | |
1951 | ||
1952 | td->ctx = ctx; | |
1953 | } | |
1954 | ||
1955 | static | |
1956 | void ctf_set_handle(struct trace_descriptor *descriptor, | |
1957 | struct bt_trace_handle *handle) | |
1958 | { | |
1959 | struct ctf_trace *td = container_of(descriptor, struct ctf_trace, | |
1960 | parent); | |
1961 | ||
1962 | td->handle = handle; | |
1963 | } | |
1964 | ||
7fb21036 | 1965 | void __attribute__((constructor)) ctf_init(void) |
fc93b2bd MD |
1966 | { |
1967 | int ret; | |
1968 | ||
4c8bfb7e | 1969 | ctf_format.name = g_quark_from_static_string("ctf"); |
fc93b2bd MD |
1970 | ret = bt_register_format(&ctf_format); |
1971 | assert(!ret); | |
1972 | } | |
698f0fe4 MD |
1973 | |
1974 | /* TODO: finalize */ |