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. | |
c462e188 MD |
19 | * |
20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
21 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
23 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
24 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
25 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
26 | * SOFTWARE. | |
fc93b2bd MD |
27 | */ |
28 | ||
29 | #include <babeltrace/format.h> | |
30 | #include <babeltrace/ctf/types.h> | |
bbefb8dd | 31 | #include <babeltrace/ctf/metadata.h> |
70bd0a12 | 32 | #include <babeltrace/babeltrace-internal.h> |
e4195791 | 33 | #include <babeltrace/ctf/events-internal.h> |
98a04903 JD |
34 | #include <babeltrace/trace-handle-internal.h> |
35 | #include <babeltrace/context-internal.h> | |
4cb26dfb | 36 | #include <babeltrace/compat/uuid.h> |
43e34335 | 37 | #include <babeltrace/endian.h> |
0ace7505 | 38 | #include <babeltrace/ctf/ctf-index.h> |
0f980a35 | 39 | #include <inttypes.h> |
b4c19c1e | 40 | #include <stdio.h> |
0f980a35 | 41 | #include <sys/mman.h> |
bbefb8dd | 42 | #include <errno.h> |
bbefb8dd | 43 | #include <sys/types.h> |
65102a8c | 44 | #include <sys/stat.h> |
bbefb8dd | 45 | #include <fcntl.h> |
65102a8c | 46 | #include <dirent.h> |
bbefb8dd | 47 | #include <glib.h> |
65102a8c MD |
48 | #include <unistd.h> |
49 | #include <stdlib.h> | |
50 | ||
65102a8c MD |
51 | #include "metadata/ctf-scanner.h" |
52 | #include "metadata/ctf-parser.h" | |
53 | #include "metadata/ctf-ast.h" | |
c34ea0fa | 54 | #include "events-private.h" |
68ef7952 | 55 | #include <babeltrace/compat/memstream.h> |
65102a8c | 56 | |
ec323464 MD |
57 | #define LOG2_CHAR_BIT 3 |
58 | ||
59 | /* | |
60 | * Length of first attempt at mapping a packet header, in bits. | |
61 | */ | |
62 | #define DEFAULT_HEADER_LEN (getpagesize() * CHAR_BIT) | |
63 | ||
0f980a35 | 64 | /* |
ec323464 | 65 | * Lenght of packet to write, in bits. |
0f980a35 | 66 | */ |
8c572eba | 67 | #define WRITE_PACKET_LEN (getpagesize() * 8 * CHAR_BIT) |
0f980a35 | 68 | |
a0fe7d97 MD |
69 | #ifndef min |
70 | #define min(a, b) (((a) < (b)) ? (a) : (b)) | |
71 | #endif | |
72 | ||
7d97fad9 MD |
73 | #define NSEC_PER_SEC 1000000000ULL |
74 | ||
0ace7505 JD |
75 | #define INDEX_PATH "./index/%s.idx" |
76 | ||
03798a93 | 77 | int opt_clock_cycles, |
7d97fad9 MD |
78 | opt_clock_seconds, |
79 | opt_clock_date, | |
80 | opt_clock_gmt; | |
81 | ||
82 | uint64_t opt_clock_offset; | |
65923160 | 83 | uint64_t opt_clock_offset_ns; |
7d97fad9 | 84 | |
65102a8c | 85 | extern int yydebug; |
bbefb8dd | 86 | |
e9378815 | 87 | static |
1b8455b7 | 88 | struct bt_trace_descriptor *ctf_open_trace(const char *path, int flags, |
1cf393f6 | 89 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
20d0dcf9 MD |
90 | int whence), |
91 | FILE *metadata_fp); | |
e9378815 | 92 | static |
1b8455b7 | 93 | struct bt_trace_descriptor *ctf_open_mmap_trace( |
c150f912 | 94 | struct bt_mmap_stream_list *mmap_list, |
1cf393f6 | 95 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
20d0dcf9 | 96 | int whence), |
f571dfb1 | 97 | FILE *metadata_fp); |
98a04903 | 98 | static |
1b8455b7 | 99 | void ctf_set_context(struct bt_trace_descriptor *descriptor, |
98a04903 JD |
100 | struct bt_context *ctx); |
101 | static | |
1b8455b7 | 102 | void ctf_set_handle(struct bt_trace_descriptor *descriptor, |
98a04903 | 103 | struct bt_trace_handle *handle); |
f571dfb1 JD |
104 | |
105 | static | |
1b8455b7 | 106 | int ctf_close_trace(struct bt_trace_descriptor *descriptor); |
30c276af | 107 | static |
1b8455b7 | 108 | uint64_t ctf_timestamp_begin(struct bt_trace_descriptor *descriptor, |
03798a93 | 109 | struct bt_trace_handle *handle, enum bt_clock_type type); |
30c276af | 110 | static |
1b8455b7 | 111 | uint64_t ctf_timestamp_end(struct bt_trace_descriptor *descriptor, |
03798a93 JD |
112 | struct bt_trace_handle *handle, enum bt_clock_type type); |
113 | static | |
1b8455b7 | 114 | int ctf_convert_index_timestamp(struct bt_trace_descriptor *tdp); |
fc93b2bd | 115 | |
1ae19169 MD |
116 | static |
117 | rw_dispatch read_dispatch_table[] = { | |
d11e9c49 MD |
118 | [ CTF_TYPE_INTEGER ] = ctf_integer_read, |
119 | [ CTF_TYPE_FLOAT ] = ctf_float_read, | |
120 | [ CTF_TYPE_ENUM ] = ctf_enum_read, | |
121 | [ CTF_TYPE_STRING ] = ctf_string_read, | |
122 | [ CTF_TYPE_STRUCT ] = ctf_struct_rw, | |
123 | [ CTF_TYPE_VARIANT ] = ctf_variant_rw, | |
81dee1bb MD |
124 | [ CTF_TYPE_ARRAY ] = ctf_array_read, |
125 | [ CTF_TYPE_SEQUENCE ] = ctf_sequence_read, | |
d11e9c49 MD |
126 | }; |
127 | ||
1ae19169 MD |
128 | static |
129 | rw_dispatch write_dispatch_table[] = { | |
d11e9c49 MD |
130 | [ CTF_TYPE_INTEGER ] = ctf_integer_write, |
131 | [ CTF_TYPE_FLOAT ] = ctf_float_write, | |
132 | [ CTF_TYPE_ENUM ] = ctf_enum_write, | |
133 | [ CTF_TYPE_STRING ] = ctf_string_write, | |
134 | [ CTF_TYPE_STRUCT ] = ctf_struct_rw, | |
135 | [ CTF_TYPE_VARIANT ] = ctf_variant_rw, | |
81dee1bb MD |
136 | [ CTF_TYPE_ARRAY ] = ctf_array_write, |
137 | [ CTF_TYPE_SEQUENCE ] = ctf_sequence_write, | |
d11e9c49 MD |
138 | }; |
139 | ||
1ae19169 | 140 | static |
37b99bdb | 141 | struct bt_format ctf_format = { |
bbefb8dd | 142 | .open_trace = ctf_open_trace, |
f571dfb1 | 143 | .open_mmap_trace = ctf_open_mmap_trace, |
bbefb8dd | 144 | .close_trace = ctf_close_trace, |
98a04903 JD |
145 | .set_context = ctf_set_context, |
146 | .set_handle = ctf_set_handle, | |
30c276af JD |
147 | .timestamp_begin = ctf_timestamp_begin, |
148 | .timestamp_end = ctf_timestamp_end, | |
03798a93 | 149 | .convert_index_timestamp = ctf_convert_index_timestamp, |
fc93b2bd MD |
150 | }; |
151 | ||
30c276af | 152 | static |
1b8455b7 | 153 | uint64_t ctf_timestamp_begin(struct bt_trace_descriptor *descriptor, |
03798a93 | 154 | struct bt_trace_handle *handle, enum bt_clock_type type) |
30c276af JD |
155 | { |
156 | struct ctf_trace *tin; | |
157 | uint64_t begin = ULLONG_MAX; | |
158 | int i, j; | |
159 | ||
160 | tin = container_of(descriptor, struct ctf_trace, parent); | |
161 | ||
162 | if (!tin) | |
163 | goto error; | |
164 | ||
165 | /* for each stream_class */ | |
166 | for (i = 0; i < tin->streams->len; i++) { | |
167 | struct ctf_stream_declaration *stream_class; | |
168 | ||
169 | stream_class = g_ptr_array_index(tin->streams, i); | |
1b01ffc2 MD |
170 | if (!stream_class) |
171 | continue; | |
30c276af JD |
172 | /* for each file_stream */ |
173 | for (j = 0; j < stream_class->streams->len; j++) { | |
174 | struct ctf_stream_definition *stream; | |
175 | struct ctf_file_stream *cfs; | |
176 | struct ctf_stream_pos *stream_pos; | |
177 | struct packet_index *index; | |
178 | ||
179 | stream = g_ptr_array_index(stream_class->streams, j); | |
180 | cfs = container_of(stream, struct ctf_file_stream, | |
181 | parent); | |
182 | stream_pos = &cfs->pos; | |
183 | ||
03798a93 JD |
184 | if (!stream_pos->packet_real_index) |
185 | goto error; | |
186 | ||
afe9cd4a JD |
187 | if (stream_pos->packet_real_index->len <= 0) |
188 | continue; | |
189 | ||
03798a93 JD |
190 | if (type == BT_CLOCK_REAL) { |
191 | index = &g_array_index(stream_pos->packet_real_index, | |
192 | struct packet_index, | |
193 | stream_pos->packet_real_index->len - 1); | |
194 | } else if (type == BT_CLOCK_CYCLES) { | |
195 | index = &g_array_index(stream_pos->packet_cycles_index, | |
196 | struct packet_index, | |
197 | stream_pos->packet_real_index->len - 1); | |
198 | ||
199 | } else { | |
200 | goto error; | |
201 | } | |
30c276af JD |
202 | if (index->timestamp_begin < begin) |
203 | begin = index->timestamp_begin; | |
204 | } | |
205 | } | |
206 | ||
207 | return begin; | |
208 | ||
209 | error: | |
210 | return -1ULL; | |
211 | } | |
212 | ||
213 | static | |
1b8455b7 | 214 | uint64_t ctf_timestamp_end(struct bt_trace_descriptor *descriptor, |
03798a93 | 215 | struct bt_trace_handle *handle, enum bt_clock_type type) |
30c276af JD |
216 | { |
217 | struct ctf_trace *tin; | |
218 | uint64_t end = 0; | |
219 | int i, j; | |
220 | ||
221 | tin = container_of(descriptor, struct ctf_trace, parent); | |
222 | ||
223 | if (!tin) | |
224 | goto error; | |
225 | ||
226 | /* for each stream_class */ | |
227 | for (i = 0; i < tin->streams->len; i++) { | |
228 | struct ctf_stream_declaration *stream_class; | |
229 | ||
230 | stream_class = g_ptr_array_index(tin->streams, i); | |
1b01ffc2 MD |
231 | if (!stream_class) |
232 | continue; | |
30c276af JD |
233 | /* for each file_stream */ |
234 | for (j = 0; j < stream_class->streams->len; j++) { | |
235 | struct ctf_stream_definition *stream; | |
236 | struct ctf_file_stream *cfs; | |
237 | struct ctf_stream_pos *stream_pos; | |
238 | struct packet_index *index; | |
239 | ||
240 | stream = g_ptr_array_index(stream_class->streams, j); | |
241 | cfs = container_of(stream, struct ctf_file_stream, | |
242 | parent); | |
243 | stream_pos = &cfs->pos; | |
244 | ||
03798a93 JD |
245 | if (!stream_pos->packet_real_index) |
246 | goto error; | |
247 | ||
afe9cd4a JD |
248 | if (stream_pos->packet_real_index->len <= 0) |
249 | continue; | |
250 | ||
03798a93 JD |
251 | if (type == BT_CLOCK_REAL) { |
252 | index = &g_array_index(stream_pos->packet_real_index, | |
253 | struct packet_index, | |
254 | stream_pos->packet_real_index->len - 1); | |
255 | } else if (type == BT_CLOCK_CYCLES) { | |
256 | index = &g_array_index(stream_pos->packet_cycles_index, | |
257 | struct packet_index, | |
258 | stream_pos->packet_real_index->len - 1); | |
259 | ||
260 | } else { | |
261 | goto error; | |
262 | } | |
30c276af JD |
263 | if (index->timestamp_end > end) |
264 | end = index->timestamp_end; | |
265 | } | |
266 | } | |
267 | ||
268 | return end; | |
269 | ||
270 | error: | |
271 | return -1ULL; | |
272 | } | |
273 | ||
25ccc85b | 274 | /* |
03798a93 | 275 | * Update stream current timestamp |
25ccc85b | 276 | */ |
2b9a764d | 277 | static |
9e88d150 | 278 | void ctf_update_timestamp(struct ctf_stream_definition *stream, |
2b9a764d MD |
279 | struct definition_integer *integer_definition) |
280 | { | |
281 | struct declaration_integer *integer_declaration = | |
282 | integer_definition->declaration; | |
283 | uint64_t oldval, newval, updateval; | |
284 | ||
7f3f572b | 285 | if (unlikely(integer_declaration->len == 64)) { |
03798a93 JD |
286 | stream->prev_cycles_timestamp = stream->cycles_timestamp; |
287 | stream->cycles_timestamp = integer_definition->value._unsigned; | |
288 | stream->prev_real_timestamp = ctf_get_real_timestamp(stream, | |
289 | stream->prev_cycles_timestamp); | |
290 | stream->real_timestamp = ctf_get_real_timestamp(stream, | |
291 | stream->cycles_timestamp); | |
2b9a764d MD |
292 | return; |
293 | } | |
294 | /* keep low bits */ | |
03798a93 | 295 | oldval = stream->cycles_timestamp; |
2b9a764d MD |
296 | oldval &= (1ULL << integer_declaration->len) - 1; |
297 | newval = integer_definition->value._unsigned; | |
298 | /* Test for overflow by comparing low bits */ | |
299 | if (newval < oldval) | |
300 | newval += 1ULL << integer_declaration->len; | |
301 | /* updateval contains old high bits, and new low bits (sum) */ | |
03798a93 | 302 | updateval = stream->cycles_timestamp; |
2b9a764d MD |
303 | updateval &= ~((1ULL << integer_declaration->len) - 1); |
304 | updateval += newval; | |
03798a93 JD |
305 | stream->prev_cycles_timestamp = stream->cycles_timestamp; |
306 | stream->cycles_timestamp = updateval; | |
307 | ||
308 | /* convert to real timestamp */ | |
309 | stream->prev_real_timestamp = ctf_get_real_timestamp(stream, | |
310 | stream->prev_cycles_timestamp); | |
311 | stream->real_timestamp = ctf_get_real_timestamp(stream, | |
312 | stream->cycles_timestamp); | |
2b9a764d MD |
313 | } |
314 | ||
25ccc85b MD |
315 | /* |
316 | * Print timestamp, rescaling clock frequency to nanoseconds and | |
317 | * applying offsets as needed (unix time). | |
318 | */ | |
2e937fb4 | 319 | static |
03798a93 | 320 | void ctf_print_timestamp_real(FILE *fp, |
9e88d150 | 321 | struct ctf_stream_definition *stream, |
7d97fad9 MD |
322 | uint64_t timestamp) |
323 | { | |
324 | uint64_t ts_sec = 0, ts_nsec; | |
7d97fad9 | 325 | |
03798a93 | 326 | ts_nsec = timestamp; |
7d97fad9 | 327 | |
65923160 IJ |
328 | /* Add command-line offset in ns*/ |
329 | ts_nsec += opt_clock_offset_ns; | |
330 | ||
c34ea0fa | 331 | /* Add command-line offset */ |
7d97fad9 MD |
332 | ts_sec += opt_clock_offset; |
333 | ||
334 | ts_sec += ts_nsec / NSEC_PER_SEC; | |
335 | ts_nsec = ts_nsec % NSEC_PER_SEC; | |
336 | ||
337 | if (!opt_clock_seconds) { | |
338 | struct tm tm; | |
339 | time_t time_s = (time_t) ts_sec; | |
340 | ||
341 | if (!opt_clock_gmt) { | |
342 | struct tm *res; | |
343 | ||
344 | res = localtime_r(&time_s, &tm); | |
345 | if (!res) { | |
346 | fprintf(stderr, "[warning] Unable to get localtime.\n"); | |
347 | goto seconds; | |
348 | } | |
349 | } else { | |
350 | struct tm *res; | |
351 | ||
352 | res = gmtime_r(&time_s, &tm); | |
353 | if (!res) { | |
354 | fprintf(stderr, "[warning] Unable to get gmtime.\n"); | |
355 | goto seconds; | |
356 | } | |
357 | } | |
358 | if (opt_clock_date) { | |
359 | char timestr[26]; | |
360 | size_t res; | |
361 | ||
362 | /* Print date and time */ | |
363 | res = strftime(timestr, sizeof(timestr), | |
364 | "%F ", &tm); | |
365 | if (!res) { | |
366 | fprintf(stderr, "[warning] Unable to print ascii time.\n"); | |
367 | goto seconds; | |
368 | } | |
369 | fprintf(fp, "%s", timestr); | |
370 | } | |
371 | /* Print time in HH:MM:SS.ns */ | |
372 | fprintf(fp, "%02d:%02d:%02d.%09" PRIu64, | |
373 | tm.tm_hour, tm.tm_min, tm.tm_sec, ts_nsec); | |
374 | goto end; | |
375 | } | |
376 | seconds: | |
377 | fprintf(fp, "%3" PRIu64 ".%09" PRIu64, | |
378 | ts_sec, ts_nsec); | |
379 | ||
380 | end: | |
381 | return; | |
382 | } | |
383 | ||
03798a93 JD |
384 | /* |
385 | * Print timestamp, in cycles | |
386 | */ | |
2e937fb4 | 387 | static |
03798a93 JD |
388 | void ctf_print_timestamp_cycles(FILE *fp, |
389 | struct ctf_stream_definition *stream, | |
390 | uint64_t timestamp) | |
391 | { | |
392 | fprintf(fp, "%020" PRIu64, timestamp); | |
393 | } | |
394 | ||
395 | void ctf_print_timestamp(FILE *fp, | |
396 | struct ctf_stream_definition *stream, | |
397 | uint64_t timestamp) | |
398 | { | |
399 | if (opt_clock_cycles) { | |
400 | ctf_print_timestamp_cycles(fp, stream, timestamp); | |
401 | } else { | |
402 | ctf_print_timestamp_real(fp, stream, timestamp); | |
403 | } | |
404 | } | |
405 | ||
87148dc7 MD |
406 | static |
407 | void print_uuid(FILE *fp, unsigned char *uuid) | |
408 | { | |
409 | int i; | |
410 | ||
411 | for (i = 0; i < BABELTRACE_UUID_LEN; i++) | |
412 | fprintf(fp, "%x", (unsigned int) uuid[i]); | |
413 | } | |
414 | ||
c829a65c MD |
415 | void ctf_print_discarded(FILE *fp, struct ctf_stream_definition *stream, |
416 | int end_stream) | |
87148dc7 | 417 | { |
c829a65c MD |
418 | fprintf(fp, "[warning] Tracer discarded %" PRIu64 " events %sbetween [", |
419 | stream->events_discarded, | |
420 | end_stream ? "at end of stream " : ""); | |
87148dc7 MD |
421 | if (opt_clock_cycles) { |
422 | ctf_print_timestamp(fp, stream, | |
423 | stream->prev_cycles_timestamp); | |
424 | fprintf(fp, "] and ["); | |
425 | ctf_print_timestamp(fp, stream, | |
426 | stream->prev_cycles_timestamp_end); | |
427 | } else { | |
428 | ctf_print_timestamp(fp, stream, | |
429 | stream->prev_real_timestamp); | |
430 | fprintf(fp, "] and ["); | |
431 | ctf_print_timestamp(fp, stream, | |
432 | stream->prev_real_timestamp_end); | |
433 | } | |
434 | fprintf(fp, "] in trace UUID "); | |
435 | print_uuid(fp, stream->stream_class->trace->uuid); | |
caf929fa | 436 | if (stream->stream_class->trace->parent.path[0]) |
87148dc7 | 437 | fprintf(fp, ", at path: \"%s\"", |
caf929fa | 438 | stream->stream_class->trace->parent.path); |
87148dc7 MD |
439 | |
440 | fprintf(fp, ", within stream id %" PRIu64, stream->stream_id); | |
441 | if (stream->path[0]) | |
442 | fprintf(fp, ", at relative path: \"%s\"", stream->path); | |
443 | fprintf(fp, ". "); | |
444 | fprintf(fp, "You should consider recording a new trace with larger " | |
445 | "buffers or with fewer events enabled.\n"); | |
446 | fflush(fp); | |
447 | } | |
448 | ||
31262354 | 449 | static |
1cf393f6 | 450 | int ctf_read_event(struct bt_stream_pos *ppos, struct ctf_stream_definition *stream) |
31262354 MD |
451 | { |
452 | struct ctf_stream_pos *pos = | |
453 | container_of(ppos, struct ctf_stream_pos, parent); | |
f380e105 | 454 | struct ctf_stream_declaration *stream_class = stream->stream_class; |
c716f83b | 455 | struct ctf_event_definition *event; |
31262354 | 456 | uint64_t id = 0; |
31262354 MD |
457 | int ret; |
458 | ||
3abe83c7 MD |
459 | /* We need to check for EOF here for empty files. */ |
460 | if (unlikely(pos->offset == EOF)) | |
461 | return EOF; | |
462 | ||
5f643ed7 MD |
463 | ctf_pos_get_event(pos); |
464 | ||
90fcbacc JD |
465 | /* save the current position as a restore point */ |
466 | pos->last_offset = pos->offset; | |
90fcbacc | 467 | |
3abe83c7 MD |
468 | /* |
469 | * This is the EOF check after we've advanced the position in | |
470 | * ctf_pos_get_event. | |
471 | */ | |
7f3f572b | 472 | if (unlikely(pos->offset == EOF)) |
31262354 | 473 | return EOF; |
8793d9f8 | 474 | |
500634be JD |
475 | /* Stream is inactive for now (live reading). */ |
476 | if (unlikely(pos->content_size == 0)) | |
8793d9f8 | 477 | return EAGAIN; |
500634be JD |
478 | |
479 | /* | |
480 | * Packet seeked to by ctf_pos_get_event() only contains | |
481 | * headers, no event. Consider stream as inactive (live | |
482 | * reading). | |
483 | */ | |
484 | if (unlikely(pos->data_offset == pos->content_size)) | |
a5260047 JD |
485 | return EAGAIN; |
486 | ||
5f643ed7 | 487 | assert(pos->offset < pos->content_size); |
31262354 MD |
488 | |
489 | /* Read event header */ | |
7f3f572b | 490 | if (likely(stream->stream_event_header)) { |
a35173fe | 491 | struct definition_integer *integer_definition; |
0d69b916 | 492 | struct bt_definition *variant; |
a35173fe | 493 | |
e28d4618 | 494 | ret = generic_rw(ppos, &stream->stream_event_header->p); |
7f3f572b | 495 | if (unlikely(ret)) |
31262354 MD |
496 | goto error; |
497 | /* lookup event id */ | |
bf78e2cf | 498 | integer_definition = bt_lookup_integer(&stream->stream_event_header->p, "id", FALSE); |
a35173fe MD |
499 | if (integer_definition) { |
500 | id = integer_definition->value._unsigned; | |
501 | } else { | |
502 | struct definition_enum *enum_definition; | |
503 | ||
9e3274b0 | 504 | enum_definition = bt_lookup_enum(&stream->stream_event_header->p, "id", FALSE); |
a35173fe MD |
505 | if (enum_definition) { |
506 | id = enum_definition->integer->value._unsigned; | |
507 | } | |
31262354 | 508 | } |
764af3f4 | 509 | |
ebae302b | 510 | variant = bt_lookup_variant(&stream->stream_event_header->p, "v"); |
ccdb988e | 511 | if (variant) { |
bf78e2cf | 512 | integer_definition = bt_lookup_integer(variant, "id", FALSE); |
ccdb988e MD |
513 | if (integer_definition) { |
514 | id = integer_definition->value._unsigned; | |
515 | } | |
516 | } | |
c87a8eb2 | 517 | stream->event_id = id; |
ccdb988e | 518 | |
764af3f4 | 519 | /* lookup timestamp */ |
5e2eb0ae | 520 | stream->has_timestamp = 0; |
bf78e2cf | 521 | integer_definition = bt_lookup_integer(&stream->stream_event_header->p, "timestamp", FALSE); |
a35173fe | 522 | if (integer_definition) { |
2b9a764d | 523 | ctf_update_timestamp(stream, integer_definition); |
5e2eb0ae | 524 | stream->has_timestamp = 1; |
a35173fe | 525 | } else { |
ccdb988e | 526 | if (variant) { |
bf78e2cf | 527 | integer_definition = bt_lookup_integer(variant, "timestamp", FALSE); |
a35173fe | 528 | if (integer_definition) { |
2b9a764d | 529 | ctf_update_timestamp(stream, integer_definition); |
5e2eb0ae | 530 | stream->has_timestamp = 1; |
a35173fe MD |
531 | } |
532 | } | |
764af3f4 | 533 | } |
31262354 MD |
534 | } |
535 | ||
536 | /* Read stream-declared event context */ | |
e28d4618 MD |
537 | if (stream->stream_event_context) { |
538 | ret = generic_rw(ppos, &stream->stream_event_context->p); | |
31262354 MD |
539 | if (ret) |
540 | goto error; | |
541 | } | |
542 | ||
7f3f572b | 543 | if (unlikely(id >= stream_class->events_by_id->len)) { |
3394d22e | 544 | fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id); |
31262354 MD |
545 | return -EINVAL; |
546 | } | |
e28d4618 | 547 | event = g_ptr_array_index(stream->events_by_id, id); |
7f3f572b | 548 | if (unlikely(!event)) { |
3394d22e | 549 | fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id); |
31262354 MD |
550 | return -EINVAL; |
551 | } | |
552 | ||
553 | /* Read event-declared event context */ | |
e28d4618 MD |
554 | if (event->event_context) { |
555 | ret = generic_rw(ppos, &event->event_context->p); | |
31262354 MD |
556 | if (ret) |
557 | goto error; | |
558 | } | |
559 | ||
560 | /* Read event payload */ | |
7f3f572b | 561 | if (likely(event->event_fields)) { |
e28d4618 | 562 | ret = generic_rw(ppos, &event->event_fields->p); |
31262354 MD |
563 | if (ret) |
564 | goto error; | |
565 | } | |
566 | ||
28f35f0a MD |
567 | if (pos->last_offset == pos->offset) { |
568 | fprintf(stderr, "[error] Invalid 0 byte event encountered.\n"); | |
569 | return -EINVAL; | |
570 | } | |
571 | ||
31262354 MD |
572 | return 0; |
573 | ||
574 | error: | |
64f5abe1 | 575 | fprintf(stderr, "[error] Unexpected end of packet. Either the trace data stream is corrupted or metadata description does not match data layout.\n"); |
31262354 MD |
576 | return ret; |
577 | } | |
578 | ||
579 | static | |
1cf393f6 | 580 | int ctf_write_event(struct bt_stream_pos *pos, struct ctf_stream_definition *stream) |
31262354 | 581 | { |
f380e105 | 582 | struct ctf_stream_declaration *stream_class = stream->stream_class; |
c716f83b | 583 | struct ctf_event_definition *event; |
c87a8eb2 | 584 | uint64_t id; |
31262354 MD |
585 | int ret; |
586 | ||
c87a8eb2 MD |
587 | id = stream->event_id; |
588 | ||
31262354 | 589 | /* print event header */ |
7f3f572b | 590 | if (likely(stream->stream_event_header)) { |
e28d4618 | 591 | ret = generic_rw(pos, &stream->stream_event_header->p); |
31262354 MD |
592 | if (ret) |
593 | goto error; | |
594 | } | |
595 | ||
596 | /* print stream-declared event context */ | |
e28d4618 MD |
597 | if (stream->stream_event_context) { |
598 | ret = generic_rw(pos, &stream->stream_event_context->p); | |
31262354 MD |
599 | if (ret) |
600 | goto error; | |
601 | } | |
602 | ||
7f3f572b | 603 | if (unlikely(id >= stream_class->events_by_id->len)) { |
3394d22e | 604 | fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id); |
31262354 MD |
605 | return -EINVAL; |
606 | } | |
e28d4618 | 607 | event = g_ptr_array_index(stream->events_by_id, id); |
7f3f572b | 608 | if (unlikely(!event)) { |
3394d22e | 609 | fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id); |
31262354 MD |
610 | return -EINVAL; |
611 | } | |
612 | ||
613 | /* print event-declared event context */ | |
e28d4618 MD |
614 | if (event->event_context) { |
615 | ret = generic_rw(pos, &event->event_context->p); | |
31262354 MD |
616 | if (ret) |
617 | goto error; | |
618 | } | |
619 | ||
620 | /* Read and print event payload */ | |
7f3f572b | 621 | if (likely(event->event_fields)) { |
e28d4618 | 622 | ret = generic_rw(pos, &event->event_fields->p); |
31262354 MD |
623 | if (ret) |
624 | goto error; | |
625 | } | |
626 | ||
627 | return 0; | |
628 | ||
629 | error: | |
3394d22e | 630 | 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 |
631 | return ret; |
632 | } | |
633 | ||
e69dd258 JD |
634 | /* |
635 | * One side-effect of this function is to unmap pos mmap base if one is | |
636 | * mapped. | |
637 | */ | |
638 | static | |
639 | int find_data_offset(struct ctf_stream_pos *pos, | |
640 | struct ctf_file_stream *file_stream, | |
641 | struct packet_index *packet_index) | |
642 | { | |
643 | uint64_t packet_map_len = DEFAULT_HEADER_LEN, tmp_map_len; | |
644 | struct stat filestats; | |
645 | size_t filesize; | |
646 | int ret; | |
647 | ||
648 | pos = &file_stream->pos; | |
649 | ||
650 | ret = fstat(pos->fd, &filestats); | |
651 | if (ret < 0) | |
652 | return ret; | |
653 | filesize = filestats.st_size; | |
654 | ||
655 | /* Deal with empty files */ | |
656 | if (!filesize) { | |
657 | return 0; | |
658 | } | |
659 | ||
660 | begin: | |
661 | if (filesize - pos->mmap_offset < (packet_map_len >> LOG2_CHAR_BIT)) { | |
662 | packet_map_len = (filesize - pos->mmap_offset) << LOG2_CHAR_BIT; | |
663 | } | |
664 | ||
665 | if (pos->base_mma) { | |
666 | /* unmap old base */ | |
667 | ret = munmap_align(pos->base_mma); | |
668 | if (ret) { | |
669 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", | |
670 | strerror(errno)); | |
671 | return ret; | |
672 | } | |
673 | pos->base_mma = NULL; | |
674 | } | |
675 | /* map new base. Need mapping length from header. */ | |
676 | pos->base_mma = mmap_align(packet_map_len >> LOG2_CHAR_BIT, PROT_READ, | |
677 | MAP_PRIVATE, pos->fd, pos->mmap_offset); | |
678 | assert(pos->base_mma != MAP_FAILED); | |
679 | ||
680 | pos->content_size = packet_map_len; | |
681 | pos->packet_size = packet_map_len; | |
682 | pos->offset = 0; /* Position of the packet header */ | |
683 | ||
684 | /* update trace_packet_header and stream_packet_context */ | |
685 | if (pos->prot == PROT_READ && file_stream->parent.trace_packet_header) { | |
686 | /* Read packet header */ | |
687 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); | |
688 | if (ret) { | |
689 | if (ret == -EFAULT) | |
690 | goto retry; | |
691 | } | |
692 | } | |
693 | if (pos->prot == PROT_READ && file_stream->parent.stream_packet_context) { | |
694 | /* Read packet context */ | |
695 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); | |
696 | if (ret) { | |
697 | if (ret == -EFAULT) | |
698 | goto retry; | |
699 | } | |
700 | } | |
701 | packet_index->data_offset = pos->offset; | |
702 | ||
703 | /* unmap old base */ | |
704 | ret = munmap_align(pos->base_mma); | |
705 | if (ret) { | |
706 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", | |
707 | strerror(errno)); | |
708 | return ret; | |
709 | } | |
710 | pos->base_mma = NULL; | |
711 | ||
712 | return 0; | |
713 | ||
714 | /* Retry with larger mapping */ | |
715 | retry: | |
716 | if (packet_map_len == ((filesize - pos->mmap_offset) << LOG2_CHAR_BIT)) { | |
717 | /* | |
718 | * Reached EOF, but still expecting header/context data. | |
719 | */ | |
720 | fprintf(stderr, "[error] Reached end of file, but still expecting header or context fields.\n"); | |
721 | return -EFAULT; | |
722 | } | |
723 | /* Double the mapping len, and retry */ | |
724 | tmp_map_len = packet_map_len << 1; | |
725 | if (tmp_map_len >> 1 != packet_map_len) { | |
726 | /* Overflow */ | |
727 | fprintf(stderr, "[error] Packet mapping length overflow\n"); | |
728 | return -EFAULT; | |
729 | } | |
730 | packet_map_len = tmp_map_len; | |
731 | goto begin; | |
732 | } | |
733 | ||
734 | ||
ca334c72 MD |
735 | int ctf_init_pos(struct ctf_stream_pos *pos, struct bt_trace_descriptor *trace, |
736 | int fd, int open_flags) | |
8c572eba MD |
737 | { |
738 | pos->fd = fd; | |
37fcdd19 | 739 | if (fd >= 0) { |
03798a93 | 740 | pos->packet_cycles_index = g_array_new(FALSE, TRUE, |
8563e754 | 741 | sizeof(struct packet_index)); |
37fcdd19 JD |
742 | pos->packet_real_index = g_array_new(FALSE, TRUE, |
743 | sizeof(struct packet_index)); | |
744 | } else { | |
03798a93 | 745 | pos->packet_cycles_index = NULL; |
37fcdd19 JD |
746 | pos->packet_real_index = NULL; |
747 | } | |
8563e754 MD |
748 | switch (open_flags & O_ACCMODE) { |
749 | case O_RDONLY: | |
750 | pos->prot = PROT_READ; | |
751 | pos->flags = MAP_PRIVATE; | |
752 | pos->parent.rw_table = read_dispatch_table; | |
31262354 | 753 | pos->parent.event_cb = ctf_read_event; |
ca334c72 | 754 | pos->parent.trace = trace; |
8563e754 | 755 | break; |
8563e754 MD |
756 | case O_RDWR: |
757 | pos->prot = PROT_WRITE; /* Write has priority */ | |
758 | pos->flags = MAP_SHARED; | |
759 | pos->parent.rw_table = write_dispatch_table; | |
31262354 | 760 | pos->parent.event_cb = ctf_write_event; |
ca334c72 | 761 | pos->parent.trace = trace; |
8563e754 | 762 | if (fd >= 0) |
06789ffd | 763 | ctf_packet_seek(&pos->parent, 0, SEEK_SET); /* position for write */ |
8563e754 MD |
764 | break; |
765 | default: | |
766 | assert(0); | |
8c572eba | 767 | } |
f824ae04 | 768 | return 0; |
8c572eba MD |
769 | } |
770 | ||
f824ae04 | 771 | int ctf_fini_pos(struct ctf_stream_pos *pos) |
8c572eba | 772 | { |
8c572eba MD |
773 | if (pos->prot == PROT_WRITE && pos->content_size_loc) |
774 | *pos->content_size_loc = pos->offset; | |
aee35fcc | 775 | if (pos->base_mma) { |
08c82b90 MD |
776 | int ret; |
777 | ||
8c572eba | 778 | /* unmap old base */ |
aee35fcc | 779 | ret = munmap_align(pos->base_mma); |
8c572eba | 780 | if (ret) { |
3394d22e | 781 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", |
8c572eba | 782 | strerror(errno)); |
f824ae04 | 783 | return -1; |
8c572eba MD |
784 | } |
785 | } | |
37fcdd19 JD |
786 | if (pos->packet_cycles_index) |
787 | (void) g_array_free(pos->packet_cycles_index, TRUE); | |
788 | if (pos->packet_real_index) | |
789 | (void) g_array_free(pos->packet_real_index, TRUE); | |
f824ae04 | 790 | return 0; |
8c572eba MD |
791 | } |
792 | ||
20d0dcf9 MD |
793 | /* |
794 | * for SEEK_CUR: go to next packet. | |
34b8fff6 | 795 | * for SEEK_SET: go to packet numer (index). |
20d0dcf9 | 796 | */ |
1cf393f6 | 797 | void ctf_packet_seek(struct bt_stream_pos *stream_pos, size_t index, int whence) |
0f980a35 | 798 | { |
d6425aaf MD |
799 | struct ctf_stream_pos *pos = |
800 | container_of(stream_pos, struct ctf_stream_pos, parent); | |
75cc2c35 MD |
801 | struct ctf_file_stream *file_stream = |
802 | container_of(pos, struct ctf_file_stream, pos); | |
0f980a35 | 803 | int ret; |
8c572eba | 804 | off_t off; |
20d0dcf9 | 805 | struct packet_index *packet_index; |
0f980a35 | 806 | |
5bfcad93 MD |
807 | switch (whence) { |
808 | case SEEK_CUR: | |
809 | case SEEK_SET: /* Fall-through */ | |
810 | break; /* OK */ | |
811 | default: | |
812 | assert(0); | |
813 | } | |
814 | ||
8c572eba MD |
815 | if (pos->prot == PROT_WRITE && pos->content_size_loc) |
816 | *pos->content_size_loc = pos->offset; | |
0f980a35 | 817 | |
aee35fcc | 818 | if (pos->base_mma) { |
0f980a35 | 819 | /* unmap old base */ |
aee35fcc | 820 | ret = munmap_align(pos->base_mma); |
0f980a35 | 821 | if (ret) { |
3394d22e | 822 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", |
0f980a35 MD |
823 | strerror(errno)); |
824 | assert(0); | |
825 | } | |
aee35fcc | 826 | pos->base_mma = NULL; |
0f980a35 MD |
827 | } |
828 | ||
8c572eba | 829 | /* |
46322b33 | 830 | * The caller should never ask for ctf_move_pos across packets, |
8c572eba MD |
831 | * except to get exactly at the beginning of the next packet. |
832 | */ | |
833 | if (pos->prot == PROT_WRITE) { | |
989c73bc MD |
834 | switch (whence) { |
835 | case SEEK_CUR: | |
836 | /* The writer will add padding */ | |
e0a5b455 | 837 | pos->mmap_offset += pos->packet_size / CHAR_BIT; |
989c73bc MD |
838 | break; |
839 | case SEEK_SET: | |
20d0dcf9 | 840 | assert(index == 0); /* only seek supported for now */ |
989c73bc MD |
841 | pos->cur_index = 0; |
842 | break; | |
843 | default: | |
844 | assert(0); | |
845 | } | |
8c572eba MD |
846 | pos->content_size = -1U; /* Unknown at this point */ |
847 | pos->packet_size = WRITE_PACKET_LEN; | |
989c73bc MD |
848 | off = posix_fallocate(pos->fd, pos->mmap_offset, |
849 | pos->packet_size / CHAR_BIT); | |
8c572eba | 850 | assert(off >= 0); |
847bf71a | 851 | pos->offset = 0; |
8c572eba | 852 | } else { |
5f643ed7 | 853 | read_next_packet: |
847bf71a MD |
854 | switch (whence) { |
855 | case SEEK_CUR: | |
41e82e00 | 856 | { |
4c4ba021 | 857 | uint64_t events_discarded_diff; |
41e82e00 | 858 | |
7d97fad9 MD |
859 | if (pos->offset == EOF) { |
860 | return; | |
861 | } | |
c309df1c MD |
862 | assert(pos->cur_index < pos->packet_cycles_index->len); |
863 | assert(pos->cur_index < pos->packet_real_index->len); | |
864 | ||
3217ac37 | 865 | /* For printing discarded event count */ |
03798a93 | 866 | packet_index = &g_array_index(pos->packet_cycles_index, |
41e82e00 | 867 | struct packet_index, pos->cur_index); |
03798a93 JD |
868 | file_stream->parent.prev_cycles_timestamp_end = |
869 | packet_index->timestamp_end; | |
870 | file_stream->parent.prev_cycles_timestamp = | |
871 | packet_index->timestamp_begin; | |
872 | ||
873 | packet_index = &g_array_index(pos->packet_real_index, | |
874 | struct packet_index, pos->cur_index); | |
875 | file_stream->parent.prev_real_timestamp_end = | |
20d0dcf9 | 876 | packet_index->timestamp_end; |
03798a93 JD |
877 | file_stream->parent.prev_real_timestamp = |
878 | packet_index->timestamp_begin; | |
879 | ||
880 | events_discarded_diff = packet_index->events_discarded; | |
41e82e00 | 881 | if (pos->cur_index > 0) { |
03798a93 | 882 | packet_index = &g_array_index(pos->packet_real_index, |
41e82e00 MD |
883 | struct packet_index, |
884 | pos->cur_index - 1); | |
20d0dcf9 | 885 | events_discarded_diff -= packet_index->events_discarded; |
4c4ba021 MD |
886 | /* |
887 | * Deal with 32-bit wrap-around if the | |
888 | * tracer provided a 32-bit field. | |
889 | */ | |
890 | if (packet_index->events_discarded_len == 32) { | |
891 | events_discarded_diff = (uint32_t) events_discarded_diff; | |
892 | } | |
41e82e00 | 893 | } |
fca04958 | 894 | file_stream->parent.events_discarded = events_discarded_diff; |
03798a93 JD |
895 | file_stream->parent.prev_real_timestamp = file_stream->parent.real_timestamp; |
896 | file_stream->parent.prev_cycles_timestamp = file_stream->parent.cycles_timestamp; | |
847bf71a | 897 | /* The reader will expect us to skip padding */ |
8c572eba | 898 | ++pos->cur_index; |
847bf71a | 899 | break; |
41e82e00 | 900 | } |
847bf71a | 901 | case SEEK_SET: |
c309df1c MD |
902 | if (index >= pos->packet_cycles_index->len) { |
903 | pos->offset = EOF; | |
904 | return; | |
905 | } | |
f60efc0e JD |
906 | packet_index = &g_array_index(pos->packet_cycles_index, |
907 | struct packet_index, index); | |
908 | pos->last_events_discarded = packet_index->events_discarded; | |
20d0dcf9 | 909 | pos->cur_index = index; |
03798a93 JD |
910 | file_stream->parent.prev_real_timestamp = 0; |
911 | file_stream->parent.prev_real_timestamp_end = 0; | |
912 | file_stream->parent.prev_cycles_timestamp = 0; | |
913 | file_stream->parent.prev_cycles_timestamp_end = 0; | |
847bf71a MD |
914 | break; |
915 | default: | |
916 | assert(0); | |
917 | } | |
03798a93 | 918 | if (pos->cur_index >= pos->packet_real_index->len) { |
7d97fad9 | 919 | /* |
87148dc7 MD |
920 | * We need to check if we are in trace read or |
921 | * called from packet indexing. In this last | |
922 | * case, the collection is not there, so we | |
923 | * cannot print the timestamps. | |
7d97fad9 | 924 | */ |
4c62e2d8 | 925 | if ((&file_stream->parent)->stream_class->trace->parent.collection) { |
badea1a2 | 926 | /* |
87148dc7 MD |
927 | * When a stream reaches the end of the |
928 | * file, we need to show the number of | |
929 | * events discarded ourselves, because | |
930 | * there is no next event scheduled to | |
931 | * be printed in the output. | |
badea1a2 | 932 | */ |
87148dc7 | 933 | if (file_stream->parent.events_discarded) { |
badea1a2 | 934 | fflush(stdout); |
c829a65c MD |
935 | ctf_print_discarded(stderr, |
936 | &file_stream->parent, | |
937 | 1); | |
87148dc7 | 938 | file_stream->parent.events_discarded = 0; |
badea1a2 | 939 | } |
7d97fad9 | 940 | } |
670977d3 | 941 | pos->offset = EOF; |
847bf71a MD |
942 | return; |
943 | } | |
03798a93 JD |
944 | packet_index = &g_array_index(pos->packet_cycles_index, |
945 | struct packet_index, | |
946 | pos->cur_index); | |
947 | file_stream->parent.cycles_timestamp = packet_index->timestamp_begin; | |
948 | ||
949 | packet_index = &g_array_index(pos->packet_real_index, | |
950 | struct packet_index, | |
951 | pos->cur_index); | |
952 | file_stream->parent.real_timestamp = packet_index->timestamp_begin; | |
8c572eba MD |
953 | |
954 | /* Lookup context/packet size in index */ | |
e69dd258 JD |
955 | if (packet_index->data_offset == -1) { |
956 | ret = find_data_offset(pos, file_stream, packet_index); | |
957 | if (ret < 0) { | |
958 | return; | |
959 | } | |
960 | } | |
20d0dcf9 MD |
961 | pos->content_size = packet_index->content_size; |
962 | pos->packet_size = packet_index->packet_size; | |
e69dd258 | 963 | pos->mmap_offset = packet_index->offset; |
500634be JD |
964 | pos->data_offset = packet_index->data_offset; |
965 | if (pos->data_offset < packet_index->content_size) { | |
75cc2c35 | 966 | pos->offset = 0; /* will read headers */ |
500634be | 967 | } else if (pos->data_offset == packet_index->content_size) { |
5f643ed7 | 968 | /* empty packet */ |
20d0dcf9 | 969 | pos->offset = packet_index->data_offset; |
3abe83c7 | 970 | whence = SEEK_CUR; |
5f643ed7 | 971 | goto read_next_packet; |
7eda6fc7 | 972 | } else { |
2b9a764d MD |
973 | pos->offset = EOF; |
974 | return; | |
975 | } | |
8c572eba | 976 | } |
0f980a35 | 977 | /* map new base. Need mapping length from header. */ |
aee35fcc MD |
978 | pos->base_mma = mmap_align(pos->packet_size / CHAR_BIT, pos->prot, |
979 | pos->flags, pos->fd, pos->mmap_offset); | |
980 | if (pos->base_mma == MAP_FAILED) { | |
3394d22e | 981 | fprintf(stderr, "[error] mmap error %s.\n", |
847bf71a MD |
982 | strerror(errno)); |
983 | assert(0); | |
984 | } | |
75cc2c35 MD |
985 | |
986 | /* update trace_packet_header and stream_packet_context */ | |
2d0bea29 | 987 | if (pos->prot != PROT_WRITE && file_stream->parent.trace_packet_header) { |
75cc2c35 | 988 | /* Read packet header */ |
2d0bea29 | 989 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); |
75cc2c35 MD |
990 | assert(!ret); |
991 | } | |
2d0bea29 | 992 | if (pos->prot != PROT_WRITE && file_stream->parent.stream_packet_context) { |
75cc2c35 | 993 | /* Read packet context */ |
2d0bea29 | 994 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); |
75cc2c35 MD |
995 | assert(!ret); |
996 | } | |
0f980a35 MD |
997 | } |
998 | ||
b4c19c1e MD |
999 | static |
1000 | int packet_metadata(struct ctf_trace *td, FILE *fp) | |
1001 | { | |
1002 | uint32_t magic; | |
1003 | size_t len; | |
1004 | int ret = 0; | |
1005 | ||
1006 | len = fread(&magic, sizeof(magic), 1, fp); | |
a0fe7d97 | 1007 | if (len != 1) { |
b4c19c1e MD |
1008 | goto end; |
1009 | } | |
1010 | if (magic == TSDL_MAGIC) { | |
1011 | ret = 1; | |
1012 | td->byte_order = BYTE_ORDER; | |
0d336fdf | 1013 | CTF_TRACE_SET_FIELD(td, byte_order); |
b4c19c1e MD |
1014 | } else if (magic == GUINT32_SWAP_LE_BE(TSDL_MAGIC)) { |
1015 | ret = 1; | |
1016 | td->byte_order = (BYTE_ORDER == BIG_ENDIAN) ? | |
1017 | LITTLE_ENDIAN : BIG_ENDIAN; | |
0d336fdf | 1018 | CTF_TRACE_SET_FIELD(td, byte_order); |
b4c19c1e MD |
1019 | } |
1020 | end: | |
1021 | rewind(fp); | |
1022 | return ret; | |
1023 | } | |
1024 | ||
5c262147 MD |
1025 | /* |
1026 | * Returns 0 on success, -1 on error. | |
1027 | */ | |
1028 | static | |
1029 | int check_version(unsigned int major, unsigned int minor) | |
1030 | { | |
1031 | switch (major) { | |
1032 | case 1: | |
1033 | switch (minor) { | |
1034 | case 8: | |
1035 | return 0; | |
1036 | default: | |
1037 | goto warning; | |
1038 | } | |
1039 | default: | |
1040 | goto warning; | |
1041 | ||
1042 | } | |
1043 | ||
1044 | /* eventually return an error instead of warning */ | |
1045 | warning: | |
3394d22e | 1046 | fprintf(stderr, "[warning] Unsupported CTF specification version %u.%u. Trying anyway.\n", |
5c262147 MD |
1047 | major, minor); |
1048 | return 0; | |
1049 | } | |
1050 | ||
b4c19c1e MD |
1051 | static |
1052 | int ctf_open_trace_metadata_packet_read(struct ctf_trace *td, FILE *in, | |
1053 | FILE *out) | |
1054 | { | |
1055 | struct metadata_packet_header header; | |
a0fe7d97 | 1056 | size_t readlen, writelen, toread; |
f8254867 | 1057 | char buf[4096 + 1]; /* + 1 for debug-mode \0 */ |
b4c19c1e MD |
1058 | int ret = 0; |
1059 | ||
a91a962e | 1060 | readlen = fread(&header, header_sizeof(header), 1, in); |
a0fe7d97 | 1061 | if (readlen < 1) |
b4c19c1e MD |
1062 | return -EINVAL; |
1063 | ||
1064 | if (td->byte_order != BYTE_ORDER) { | |
1065 | header.magic = GUINT32_SWAP_LE_BE(header.magic); | |
1066 | header.checksum = GUINT32_SWAP_LE_BE(header.checksum); | |
1067 | header.content_size = GUINT32_SWAP_LE_BE(header.content_size); | |
1068 | header.packet_size = GUINT32_SWAP_LE_BE(header.packet_size); | |
1069 | } | |
1070 | if (header.checksum) | |
3394d22e | 1071 | fprintf(stderr, "[warning] checksum verification not supported yet.\n"); |
b4c19c1e | 1072 | if (header.compression_scheme) { |
3394d22e | 1073 | fprintf(stderr, "[error] compression (%u) not supported yet.\n", |
b4c19c1e MD |
1074 | header.compression_scheme); |
1075 | return -EINVAL; | |
1076 | } | |
1077 | if (header.encryption_scheme) { | |
3394d22e | 1078 | fprintf(stderr, "[error] encryption (%u) not supported yet.\n", |
b4c19c1e MD |
1079 | header.encryption_scheme); |
1080 | return -EINVAL; | |
1081 | } | |
1082 | if (header.checksum_scheme) { | |
3394d22e | 1083 | fprintf(stderr, "[error] checksum (%u) not supported yet.\n", |
b4c19c1e MD |
1084 | header.checksum_scheme); |
1085 | return -EINVAL; | |
1086 | } | |
5c262147 MD |
1087 | if (check_version(header.major, header.minor) < 0) |
1088 | return -EINVAL; | |
b4c19c1e MD |
1089 | if (!CTF_TRACE_FIELD_IS_SET(td, uuid)) { |
1090 | memcpy(td->uuid, header.uuid, sizeof(header.uuid)); | |
1091 | CTF_TRACE_SET_FIELD(td, uuid); | |
1092 | } else { | |
43e34335 | 1093 | if (babeltrace_uuid_compare(header.uuid, td->uuid)) |
b4c19c1e MD |
1094 | return -EINVAL; |
1095 | } | |
1096 | ||
b1ccd079 MD |
1097 | if ((header.content_size / CHAR_BIT) < header_sizeof(header)) |
1098 | return -EINVAL; | |
1099 | ||
255b2138 | 1100 | toread = (header.content_size / CHAR_BIT) - header_sizeof(header); |
a0fe7d97 MD |
1101 | |
1102 | for (;;) { | |
f8254867 | 1103 | readlen = fread(buf, sizeof(char), min(sizeof(buf) - 1, toread), in); |
b4c19c1e MD |
1104 | if (ferror(in)) { |
1105 | ret = -EINVAL; | |
1106 | break; | |
1107 | } | |
4152822b | 1108 | if (babeltrace_debug) { |
f8254867 | 1109 | buf[readlen] = '\0'; |
3394d22e | 1110 | fprintf(stderr, "[debug] metadata packet read: %s\n", |
4152822b MD |
1111 | buf); |
1112 | } | |
1113 | ||
b4c19c1e MD |
1114 | writelen = fwrite(buf, sizeof(char), readlen, out); |
1115 | if (writelen < readlen) { | |
1116 | ret = -EIO; | |
1117 | break; | |
1118 | } | |
1119 | if (ferror(out)) { | |
1120 | ret = -EINVAL; | |
1121 | break; | |
1122 | } | |
a0fe7d97 MD |
1123 | toread -= readlen; |
1124 | if (!toread) { | |
7f4b5c4d | 1125 | ret = 0; /* continue reading next packet */ |
ddbc52af | 1126 | goto read_padding; |
a0fe7d97 | 1127 | } |
b4c19c1e MD |
1128 | } |
1129 | return ret; | |
ddbc52af MD |
1130 | |
1131 | read_padding: | |
1132 | toread = (header.packet_size - header.content_size) / CHAR_BIT; | |
1133 | ret = fseek(in, toread, SEEK_CUR); | |
1134 | if (ret < 0) { | |
3394d22e | 1135 | fprintf(stderr, "[warning] Missing padding at end of file\n"); |
ddbc52af MD |
1136 | ret = 0; |
1137 | } | |
1138 | return ret; | |
b4c19c1e MD |
1139 | } |
1140 | ||
1141 | static | |
1142 | int ctf_open_trace_metadata_stream_read(struct ctf_trace *td, FILE **fp, | |
1143 | char **buf) | |
1144 | { | |
1145 | FILE *in, *out; | |
abc40d24 | 1146 | size_t size, buflen; |
b4c19c1e MD |
1147 | int ret; |
1148 | ||
1149 | in = *fp; | |
c4f5487e MD |
1150 | /* |
1151 | * Using strlen on *buf instead of size of open_memstream | |
1152 | * because its size includes garbage at the end (after final | |
1153 | * \0). This is the allocated size, not the actual string size. | |
1154 | */ | |
f8370579 | 1155 | out = babeltrace_open_memstream(buf, &size); |
a569a564 MD |
1156 | if (out == NULL) { |
1157 | perror("Metadata open_memstream"); | |
b4c19c1e | 1158 | return -errno; |
a569a564 | 1159 | } |
b4c19c1e MD |
1160 | for (;;) { |
1161 | ret = ctf_open_trace_metadata_packet_read(td, in, out); | |
7f4b5c4d | 1162 | if (ret) { |
b4c19c1e | 1163 | break; |
7f4b5c4d MD |
1164 | } |
1165 | if (feof(in)) { | |
1166 | ret = 0; | |
b4c19c1e MD |
1167 | break; |
1168 | } | |
1169 | } | |
f8370579 MD |
1170 | /* close to flush the buffer */ |
1171 | ret = babeltrace_close_memstream(buf, &size, out); | |
1172 | if (ret < 0) { | |
f824ae04 MD |
1173 | int closeret; |
1174 | ||
f8370579 | 1175 | perror("babeltrace_flush_memstream"); |
f824ae04 MD |
1176 | ret = -errno; |
1177 | closeret = fclose(in); | |
1178 | if (closeret) { | |
1179 | perror("Error in fclose"); | |
1180 | } | |
1181 | return ret; | |
1182 | } | |
1183 | ret = fclose(in); | |
1184 | if (ret) { | |
1185 | perror("Error in fclose"); | |
f8370579 | 1186 | } |
b4c19c1e | 1187 | /* open for reading */ |
abc40d24 MD |
1188 | buflen = strlen(*buf); |
1189 | if (!buflen) { | |
1190 | *fp = NULL; | |
493330cb | 1191 | return -ENOENT; |
abc40d24 MD |
1192 | } |
1193 | *fp = babeltrace_fmemopen(*buf, buflen, "rb"); | |
a569a564 MD |
1194 | if (!*fp) { |
1195 | perror("Metadata fmemopen"); | |
1196 | return -errno; | |
1197 | } | |
b4c19c1e MD |
1198 | return 0; |
1199 | } | |
1200 | ||
65102a8c | 1201 | static |
b086c01a | 1202 | int ctf_open_trace_metadata_read(struct ctf_trace *td, |
1cf393f6 | 1203 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
ae23d232 | 1204 | int whence), FILE *metadata_fp) |
65102a8c MD |
1205 | { |
1206 | struct ctf_scanner *scanner; | |
2d0bea29 | 1207 | struct ctf_file_stream *metadata_stream; |
65102a8c | 1208 | FILE *fp; |
b4c19c1e | 1209 | char *buf = NULL; |
f824ae04 | 1210 | int ret = 0, closeret; |
65102a8c | 1211 | |
2d0bea29 | 1212 | metadata_stream = g_new0(struct ctf_file_stream, 1); |
3a25e036 | 1213 | metadata_stream->pos.last_offset = LAST_OFFSET_POISON; |
b086c01a | 1214 | |
06789ffd MD |
1215 | if (packet_seek) { |
1216 | metadata_stream->pos.packet_seek = packet_seek; | |
b086c01a | 1217 | } else { |
06789ffd | 1218 | fprintf(stderr, "[error] packet_seek function undefined.\n"); |
b086c01a | 1219 | ret = -1; |
f824ae04 | 1220 | goto end_free; |
b086c01a JD |
1221 | } |
1222 | ||
ae23d232 JD |
1223 | if (metadata_fp) { |
1224 | fp = metadata_fp; | |
bcbfb8bf | 1225 | metadata_stream->pos.fd = -1; |
ae23d232 JD |
1226 | } else { |
1227 | td->metadata = &metadata_stream->parent; | |
1228 | metadata_stream->pos.fd = openat(td->dirfd, "metadata", O_RDONLY); | |
1229 | if (metadata_stream->pos.fd < 0) { | |
3394d22e | 1230 | fprintf(stderr, "Unable to open metadata.\n"); |
f824ae04 MD |
1231 | ret = -1; |
1232 | goto end_free; | |
ae23d232 | 1233 | } |
65102a8c | 1234 | |
ae23d232 JD |
1235 | fp = fdopen(metadata_stream->pos.fd, "r"); |
1236 | if (!fp) { | |
3394d22e | 1237 | fprintf(stderr, "[error] Unable to open metadata stream.\n"); |
a569a564 | 1238 | perror("Metadata stream open"); |
ae23d232 JD |
1239 | ret = -errno; |
1240 | goto end_stream; | |
1241 | } | |
f824ae04 MD |
1242 | /* fd now belongs to fp */ |
1243 | metadata_stream->pos.fd = -1; | |
ae23d232 | 1244 | } |
65102a8c MD |
1245 | if (babeltrace_debug) |
1246 | yydebug = 1; | |
1247 | ||
b4c19c1e MD |
1248 | if (packet_metadata(td, fp)) { |
1249 | ret = ctf_open_trace_metadata_stream_read(td, &fp, &buf); | |
abc40d24 MD |
1250 | if (ret) { |
1251 | /* Warn about empty metadata */ | |
1252 | fprintf(stderr, "[warning] Empty metadata.\n"); | |
b4c19c1e | 1253 | goto end_packet_read; |
abc40d24 | 1254 | } |
7237592a MD |
1255 | td->metadata_string = buf; |
1256 | td->metadata_packetized = 1; | |
da75b0f7 | 1257 | } else { |
5c262147 MD |
1258 | unsigned int major, minor; |
1259 | ssize_t nr_items; | |
8c2df3f5 | 1260 | |
da75b0f7 | 1261 | td->byte_order = BYTE_ORDER; |
8c2df3f5 | 1262 | |
5c262147 MD |
1263 | /* Check text-only metadata header and version */ |
1264 | nr_items = fscanf(fp, "/* CTF %u.%u", &major, &minor); | |
1265 | if (nr_items < 2) | |
3394d22e | 1266 | fprintf(stderr, "[warning] Ill-shapen or missing \"/* CTF x.y\" header for text-only metadata.\n"); |
5c262147 MD |
1267 | if (check_version(major, minor) < 0) { |
1268 | ret = -EINVAL; | |
1269 | goto end_packet_read; | |
1270 | } | |
8c2df3f5 | 1271 | rewind(fp); |
b4c19c1e MD |
1272 | } |
1273 | ||
65102a8c MD |
1274 | scanner = ctf_scanner_alloc(fp); |
1275 | if (!scanner) { | |
3394d22e | 1276 | fprintf(stderr, "[error] Error allocating scanner\n"); |
65102a8c MD |
1277 | ret = -ENOMEM; |
1278 | goto end_scanner_alloc; | |
1279 | } | |
1280 | ret = ctf_scanner_append_ast(scanner); | |
1281 | if (ret) { | |
3394d22e | 1282 | fprintf(stderr, "[error] Error creating AST\n"); |
65102a8c MD |
1283 | goto end; |
1284 | } | |
1285 | ||
1286 | if (babeltrace_debug) { | |
3394d22e | 1287 | ret = ctf_visitor_print_xml(stderr, 0, &scanner->ast->root); |
65102a8c | 1288 | if (ret) { |
3394d22e | 1289 | fprintf(stderr, "[error] Error visiting AST for XML output\n"); |
65102a8c MD |
1290 | goto end; |
1291 | } | |
1292 | } | |
1293 | ||
3394d22e | 1294 | ret = ctf_visitor_semantic_check(stderr, 0, &scanner->ast->root); |
65102a8c | 1295 | if (ret) { |
3394d22e | 1296 | fprintf(stderr, "[error] Error in CTF semantic validation %d\n", ret); |
65102a8c MD |
1297 | goto end; |
1298 | } | |
3394d22e | 1299 | ret = ctf_visitor_construct_metadata(stderr, 0, &scanner->ast->root, |
ac5c6ca0 | 1300 | td, td->byte_order); |
65102a8c | 1301 | if (ret) { |
3394d22e | 1302 | fprintf(stderr, "[error] Error in CTF metadata constructor %d\n", ret); |
65102a8c MD |
1303 | goto end; |
1304 | } | |
1305 | end: | |
1306 | ctf_scanner_free(scanner); | |
1307 | end_scanner_alloc: | |
b4c19c1e | 1308 | end_packet_read: |
f824ae04 MD |
1309 | if (fp) { |
1310 | closeret = fclose(fp); | |
1311 | if (closeret) { | |
1312 | perror("Error on fclose"); | |
1313 | } | |
1314 | } | |
65102a8c | 1315 | end_stream: |
f824ae04 MD |
1316 | if (metadata_stream->pos.fd >= 0) { |
1317 | closeret = close(metadata_stream->pos.fd); | |
1318 | if (closeret) { | |
1319 | perror("Error on metadata stream fd close"); | |
1320 | } | |
1321 | } | |
1322 | end_free: | |
2d0bea29 MD |
1323 | if (ret) |
1324 | g_free(metadata_stream); | |
0f980a35 MD |
1325 | return ret; |
1326 | } | |
1327 | ||
e28d4618 | 1328 | static |
c716f83b | 1329 | struct ctf_event_definition *create_event_definitions(struct ctf_trace *td, |
9e88d150 | 1330 | struct ctf_stream_definition *stream, |
4716614a | 1331 | struct ctf_event_declaration *event) |
e28d4618 | 1332 | { |
c716f83b | 1333 | struct ctf_event_definition *stream_event = g_new0(struct ctf_event_definition, 1); |
e28d4618 MD |
1334 | |
1335 | if (event->context_decl) { | |
0d69b916 | 1336 | struct bt_definition *definition = |
e28d4618 MD |
1337 | event->context_decl->p.definition_new(&event->context_decl->p, |
1338 | stream->parent_def_scope, 0, 0, "event.context"); | |
1339 | if (!definition) { | |
1340 | goto error; | |
1341 | } | |
42dc00b7 | 1342 | stream_event->event_context = container_of(definition, |
e28d4618 | 1343 | struct definition_struct, p); |
42dc00b7 | 1344 | stream->parent_def_scope = stream_event->event_context->p.scope; |
e28d4618 MD |
1345 | } |
1346 | if (event->fields_decl) { | |
0d69b916 | 1347 | struct bt_definition *definition = |
e28d4618 MD |
1348 | event->fields_decl->p.definition_new(&event->fields_decl->p, |
1349 | stream->parent_def_scope, 0, 0, "event.fields"); | |
1350 | if (!definition) { | |
1351 | goto error; | |
1352 | } | |
42dc00b7 | 1353 | stream_event->event_fields = container_of(definition, |
e28d4618 | 1354 | struct definition_struct, p); |
42dc00b7 | 1355 | stream->parent_def_scope = stream_event->event_fields->p.scope; |
e28d4618 | 1356 | } |
d3ded99d | 1357 | stream_event->stream = stream; |
42dc00b7 | 1358 | return stream_event; |
e28d4618 MD |
1359 | |
1360 | error: | |
42dc00b7 | 1361 | if (stream_event->event_fields) |
13fad8b6 | 1362 | bt_definition_unref(&stream_event->event_fields->p); |
42dc00b7 | 1363 | if (stream_event->event_context) |
13fad8b6 | 1364 | bt_definition_unref(&stream_event->event_context->p); |
888ec52a MD |
1365 | fprintf(stderr, "[error] Unable to create event definition for event \"%s\".\n", |
1366 | g_quark_to_string(event->name)); | |
e28d4618 MD |
1367 | return NULL; |
1368 | } | |
1369 | ||
1370 | static | |
9e88d150 | 1371 | int create_stream_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream) |
e28d4618 | 1372 | { |
f380e105 | 1373 | struct ctf_stream_declaration *stream_class; |
e28d4618 MD |
1374 | int ret; |
1375 | int i; | |
1376 | ||
1377 | if (stream->stream_definitions_created) | |
1378 | return 0; | |
1379 | ||
1380 | stream_class = stream->stream_class; | |
1381 | ||
1382 | if (stream_class->packet_context_decl) { | |
0d69b916 | 1383 | struct bt_definition *definition = |
e28d4618 MD |
1384 | stream_class->packet_context_decl->p.definition_new(&stream_class->packet_context_decl->p, |
1385 | stream->parent_def_scope, 0, 0, "stream.packet.context"); | |
1386 | if (!definition) { | |
1387 | ret = -EINVAL; | |
1388 | goto error; | |
1389 | } | |
1390 | stream->stream_packet_context = container_of(definition, | |
1391 | struct definition_struct, p); | |
1392 | stream->parent_def_scope = stream->stream_packet_context->p.scope; | |
1393 | } | |
1394 | if (stream_class->event_header_decl) { | |
0d69b916 | 1395 | struct bt_definition *definition = |
e28d4618 MD |
1396 | stream_class->event_header_decl->p.definition_new(&stream_class->event_header_decl->p, |
1397 | stream->parent_def_scope, 0, 0, "stream.event.header"); | |
1398 | if (!definition) { | |
1399 | ret = -EINVAL; | |
1400 | goto error; | |
1401 | } | |
1402 | stream->stream_event_header = | |
1403 | container_of(definition, struct definition_struct, p); | |
1404 | stream->parent_def_scope = stream->stream_event_header->p.scope; | |
1405 | } | |
1406 | if (stream_class->event_context_decl) { | |
0d69b916 | 1407 | struct bt_definition *definition = |
e28d4618 MD |
1408 | stream_class->event_context_decl->p.definition_new(&stream_class->event_context_decl->p, |
1409 | stream->parent_def_scope, 0, 0, "stream.event.context"); | |
1410 | if (!definition) { | |
1411 | ret = -EINVAL; | |
1412 | goto error; | |
1413 | } | |
1414 | stream->stream_event_context = | |
1415 | container_of(definition, struct definition_struct, p); | |
1416 | stream->parent_def_scope = stream->stream_event_context->p.scope; | |
1417 | } | |
1418 | stream->events_by_id = g_ptr_array_new(); | |
1419 | g_ptr_array_set_size(stream->events_by_id, stream_class->events_by_id->len); | |
1420 | for (i = 0; i < stream->events_by_id->len; i++) { | |
4716614a | 1421 | struct ctf_event_declaration *event = g_ptr_array_index(stream_class->events_by_id, i); |
c716f83b | 1422 | struct ctf_event_definition *stream_event; |
e28d4618 MD |
1423 | |
1424 | if (!event) | |
1425 | continue; | |
42dc00b7 | 1426 | stream_event = create_event_definitions(td, stream, event); |
888ec52a MD |
1427 | if (!stream_event) { |
1428 | ret = -EINVAL; | |
e28d4618 | 1429 | goto error_event; |
888ec52a | 1430 | } |
42dc00b7 | 1431 | g_ptr_array_index(stream->events_by_id, i) = stream_event; |
e28d4618 MD |
1432 | } |
1433 | return 0; | |
1434 | ||
1435 | error_event: | |
1436 | for (i = 0; i < stream->events_by_id->len; i++) { | |
c716f83b | 1437 | struct ctf_event_definition *stream_event = g_ptr_array_index(stream->events_by_id, i); |
42dc00b7 MD |
1438 | if (stream_event) |
1439 | g_free(stream_event); | |
e28d4618 MD |
1440 | } |
1441 | g_ptr_array_free(stream->events_by_id, TRUE); | |
1442 | error: | |
1443 | if (stream->stream_event_context) | |
13fad8b6 | 1444 | bt_definition_unref(&stream->stream_event_context->p); |
e28d4618 | 1445 | if (stream->stream_event_header) |
13fad8b6 | 1446 | bt_definition_unref(&stream->stream_event_header->p); |
e28d4618 | 1447 | if (stream->stream_packet_context) |
13fad8b6 | 1448 | bt_definition_unref(&stream->stream_packet_context->p); |
888ec52a MD |
1449 | fprintf(stderr, "[error] Unable to create stream (%" PRIu64 ") definitions: %s\n", |
1450 | stream_class->stream_id, strerror(-ret)); | |
e28d4618 MD |
1451 | return ret; |
1452 | } | |
1453 | ||
5bfcad93 MD |
1454 | static |
1455 | int stream_assign_class(struct ctf_trace *td, | |
1456 | struct ctf_file_stream *file_stream, | |
1457 | uint64_t stream_id) | |
1458 | { | |
1459 | struct ctf_stream_declaration *stream; | |
1460 | int ret; | |
1461 | ||
1462 | file_stream->parent.stream_id = stream_id; | |
1463 | if (stream_id >= td->streams->len) { | |
1464 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); | |
1465 | return -EINVAL; | |
1466 | } | |
1467 | stream = g_ptr_array_index(td->streams, stream_id); | |
1468 | if (!stream) { | |
1469 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); | |
1470 | return -EINVAL; | |
1471 | } | |
1472 | file_stream->parent.stream_class = stream; | |
1473 | ret = create_stream_definitions(td, &file_stream->parent); | |
1474 | if (ret) | |
1475 | return ret; | |
1476 | return 0; | |
1477 | } | |
1478 | ||
0f980a35 | 1479 | static |
ec323464 MD |
1480 | int create_stream_one_packet_index(struct ctf_stream_pos *pos, |
1481 | struct ctf_trace *td, | |
1482 | struct ctf_file_stream *file_stream, | |
1483 | size_t filesize) | |
0f980a35 | 1484 | { |
ec323464 | 1485 | struct packet_index packet_index; |
ec323464 | 1486 | uint64_t stream_id = 0; |
653906a4 | 1487 | uint64_t packet_map_len = DEFAULT_HEADER_LEN, tmp_map_len; |
ec323464 | 1488 | int first_packet = 0; |
653906a4 | 1489 | int len_index; |
0f980a35 MD |
1490 | int ret; |
1491 | ||
ec323464 MD |
1492 | begin: |
1493 | if (!pos->mmap_offset) { | |
1494 | first_packet = 1; | |
1495 | } | |
8895362d | 1496 | |
ec323464 MD |
1497 | if (filesize - pos->mmap_offset < (packet_map_len >> LOG2_CHAR_BIT)) { |
1498 | packet_map_len = (filesize - pos->mmap_offset) << LOG2_CHAR_BIT; | |
1499 | } | |
0f980a35 | 1500 | |
ec323464 MD |
1501 | if (pos->base_mma) { |
1502 | /* unmap old base */ | |
1503 | ret = munmap_align(pos->base_mma); | |
1504 | if (ret) { | |
1505 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", | |
1506 | strerror(errno)); | |
1507 | return ret; | |
0f980a35 | 1508 | } |
ec323464 MD |
1509 | pos->base_mma = NULL; |
1510 | } | |
1511 | /* map new base. Need mapping length from header. */ | |
1512 | pos->base_mma = mmap_align(packet_map_len >> LOG2_CHAR_BIT, PROT_READ, | |
1513 | MAP_PRIVATE, pos->fd, pos->mmap_offset); | |
1514 | assert(pos->base_mma != MAP_FAILED); | |
1515 | /* | |
1516 | * Use current mapping size as temporary content and packet | |
1517 | * size. | |
1518 | */ | |
1519 | pos->content_size = packet_map_len; | |
1520 | pos->packet_size = packet_map_len; | |
1521 | pos->offset = 0; /* Position of the packet header */ | |
1522 | ||
1523 | packet_index.offset = pos->mmap_offset; | |
1524 | packet_index.content_size = 0; | |
1525 | packet_index.packet_size = 0; | |
1526 | packet_index.timestamp_begin = 0; | |
1527 | packet_index.timestamp_end = 0; | |
1528 | packet_index.events_discarded = 0; | |
1529 | packet_index.events_discarded_len = 0; | |
1530 | ||
1531 | /* read and check header, set stream id (and check) */ | |
1532 | if (file_stream->parent.trace_packet_header) { | |
1533 | /* Read packet header */ | |
1534 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); | |
1535 | if (ret) { | |
1536 | if (ret == -EFAULT) | |
1537 | goto retry; | |
888ec52a | 1538 | fprintf(stderr, "[error] Unable to read packet header: %s\n", strerror(-ret)); |
ec323464 MD |
1539 | return ret; |
1540 | } | |
1541 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("magic")); | |
1542 | if (len_index >= 0) { | |
1543 | struct bt_definition *field; | |
1544 | uint64_t magic; | |
1545 | ||
1546 | field = bt_struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); | |
1547 | magic = bt_get_unsigned_int(field); | |
1548 | if (magic != CTF_MAGIC) { | |
1549 | fprintf(stderr, "[error] Invalid magic number 0x%" PRIX64 " at packet %u (file offset %zd).\n", | |
1550 | magic, | |
1551 | file_stream->pos.packet_cycles_index->len, | |
1552 | (ssize_t) pos->mmap_offset); | |
1553 | return -EINVAL; | |
0f980a35 | 1554 | } |
ec323464 | 1555 | } |
0f980a35 | 1556 | |
ec323464 MD |
1557 | /* check uuid */ |
1558 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("uuid")); | |
1559 | if (len_index >= 0) { | |
1560 | struct definition_array *defarray; | |
1561 | struct bt_definition *field; | |
1562 | uint64_t i; | |
1563 | uint8_t uuidval[BABELTRACE_UUID_LEN]; | |
0f980a35 | 1564 | |
ec323464 MD |
1565 | field = bt_struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
1566 | assert(field->declaration->id == CTF_TYPE_ARRAY); | |
1567 | defarray = container_of(field, struct definition_array, p); | |
1568 | assert(bt_array_len(defarray) == BABELTRACE_UUID_LEN); | |
0f980a35 | 1569 | |
ec323464 MD |
1570 | for (i = 0; i < BABELTRACE_UUID_LEN; i++) { |
1571 | struct bt_definition *elem; | |
0f980a35 | 1572 | |
ec323464 MD |
1573 | elem = bt_array_index(defarray, i); |
1574 | uuidval[i] = bt_get_unsigned_int(elem); | |
0f980a35 | 1575 | } |
ec323464 MD |
1576 | ret = babeltrace_uuid_compare(td->uuid, uuidval); |
1577 | if (ret) { | |
1578 | fprintf(stderr, "[error] Unique Universal Identifiers do not match.\n"); | |
1579 | return -EINVAL; | |
1580 | } | |
1581 | } | |
0f980a35 | 1582 | |
ec323464 MD |
1583 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("stream_id")); |
1584 | if (len_index >= 0) { | |
1585 | struct bt_definition *field; | |
0f980a35 | 1586 | |
ec323464 MD |
1587 | field = bt_struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
1588 | stream_id = bt_get_unsigned_int(field); | |
0f980a35 | 1589 | } |
ec323464 | 1590 | } |
0f980a35 | 1591 | |
ec323464 MD |
1592 | if (!first_packet && file_stream->parent.stream_id != stream_id) { |
1593 | fprintf(stderr, "[error] Stream ID is changing within a stream: expecting %" PRIu64 ", but packet has %" PRIu64 "\n", | |
1594 | stream_id, | |
1595 | file_stream->parent.stream_id); | |
1596 | return -EINVAL; | |
1597 | } | |
1598 | if (first_packet) { | |
5bfcad93 | 1599 | ret = stream_assign_class(td, file_stream, stream_id); |
ec323464 MD |
1600 | if (ret) |
1601 | return ret; | |
1602 | } | |
dc48ecad | 1603 | |
ec323464 MD |
1604 | if (file_stream->parent.stream_packet_context) { |
1605 | /* Read packet context */ | |
1606 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); | |
1607 | if (ret) { | |
1608 | if (ret == -EFAULT) | |
1609 | goto retry; | |
888ec52a | 1610 | fprintf(stderr, "[error] Unable to read packet context: %s\n", strerror(-ret)); |
ec323464 MD |
1611 | return ret; |
1612 | } | |
95b34f38 MD |
1613 | /* read packet size from header */ |
1614 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("packet_size")); | |
ec323464 MD |
1615 | if (len_index >= 0) { |
1616 | struct bt_definition *field; | |
dc48ecad | 1617 | |
ec323464 | 1618 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
95b34f38 | 1619 | packet_index.packet_size = bt_get_unsigned_int(field); |
ec323464 MD |
1620 | } else { |
1621 | /* Use file size for packet size */ | |
95b34f38 | 1622 | packet_index.packet_size = filesize * CHAR_BIT; |
ec323464 | 1623 | } |
75cc2c35 | 1624 | |
95b34f38 MD |
1625 | /* read content size from header */ |
1626 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("content_size")); | |
ec323464 MD |
1627 | if (len_index >= 0) { |
1628 | struct bt_definition *field; | |
75cc2c35 | 1629 | |
ec323464 | 1630 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
95b34f38 | 1631 | packet_index.content_size = bt_get_unsigned_int(field); |
ec323464 | 1632 | } else { |
95b34f38 MD |
1633 | /* Use packet size if non-zero, else file size */ |
1634 | packet_index.content_size = packet_index.packet_size ? : filesize * CHAR_BIT; | |
ec323464 | 1635 | } |
41e82e00 | 1636 | |
ec323464 MD |
1637 | /* read timestamp begin from header */ |
1638 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_begin")); | |
1639 | if (len_index >= 0) { | |
1640 | struct bt_definition *field; | |
41e82e00 | 1641 | |
ec323464 MD |
1642 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
1643 | packet_index.timestamp_begin = bt_get_unsigned_int(field); | |
4c62e2d8 | 1644 | if (file_stream->parent.stream_class->trace->parent.collection) { |
ec323464 MD |
1645 | packet_index.timestamp_begin = |
1646 | ctf_get_real_timestamp( | |
1647 | &file_stream->parent, | |
1648 | packet_index.timestamp_begin); | |
41e82e00 | 1649 | } |
0f980a35 | 1650 | } |
546293fa | 1651 | |
ec323464 MD |
1652 | /* read timestamp end from header */ |
1653 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_end")); | |
1654 | if (len_index >= 0) { | |
1655 | struct bt_definition *field; | |
1656 | ||
1657 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); | |
1658 | packet_index.timestamp_end = bt_get_unsigned_int(field); | |
4c62e2d8 | 1659 | if (file_stream->parent.stream_class->trace->parent.collection) { |
ec323464 MD |
1660 | packet_index.timestamp_end = |
1661 | ctf_get_real_timestamp( | |
1662 | &file_stream->parent, | |
1663 | packet_index.timestamp_end); | |
1664 | } | |
546293fa MD |
1665 | } |
1666 | ||
ec323464 MD |
1667 | /* read events discarded from header */ |
1668 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("events_discarded")); | |
1669 | if (len_index >= 0) { | |
1670 | struct bt_definition *field; | |
1671 | ||
1672 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); | |
1673 | packet_index.events_discarded = bt_get_unsigned_int(field); | |
1674 | packet_index.events_discarded_len = bt_get_int_len(field); | |
546293fa | 1675 | } |
ec323464 MD |
1676 | } else { |
1677 | /* Use file size for packet size */ | |
2d686891 MD |
1678 | packet_index.packet_size = filesize * CHAR_BIT; |
1679 | /* Use packet size if non-zero, else file size */ | |
1680 | packet_index.content_size = packet_index.packet_size ? : filesize * CHAR_BIT; | |
ec323464 MD |
1681 | } |
1682 | ||
1683 | /* Validate content size and packet size values */ | |
1684 | if (packet_index.content_size > packet_index.packet_size) { | |
1685 | fprintf(stderr, "[error] Content size (%" PRIu64 " bits) is larger than packet size (%" PRIu64 " bits).\n", | |
1686 | packet_index.content_size, packet_index.packet_size); | |
1687 | return -EINVAL; | |
1688 | } | |
1689 | ||
1690 | if (packet_index.packet_size > ((uint64_t) filesize - packet_index.offset) * CHAR_BIT) { | |
1691 | fprintf(stderr, "[error] Packet size (%" PRIu64 " bits) is larger than remaining file size (%" PRIu64 " bits).\n", | |
1692 | packet_index.packet_size, ((uint64_t) filesize - packet_index.offset) * CHAR_BIT); | |
1693 | return -EINVAL; | |
1694 | } | |
546293fa | 1695 | |
a7ac9efd MD |
1696 | if (packet_index.content_size < pos->offset) { |
1697 | fprintf(stderr, "[error] Invalid CTF stream: content size is smaller than packet headers.\n"); | |
1698 | return -EINVAL; | |
1699 | } | |
1700 | ||
2d686891 MD |
1701 | if ((packet_index.packet_size >> LOG2_CHAR_BIT) == 0) { |
1702 | fprintf(stderr, "[error] Invalid CTF stream: packet size needs to be at least one byte\n"); | |
1703 | return -EINVAL; | |
1704 | } | |
1705 | ||
ec323464 MD |
1706 | /* Save position after header and context */ |
1707 | packet_index.data_offset = pos->offset; | |
0f980a35 | 1708 | |
ec323464 MD |
1709 | /* add index to packet array */ |
1710 | g_array_append_val(file_stream->pos.packet_cycles_index, packet_index); | |
0f980a35 | 1711 | |
ec323464 MD |
1712 | pos->mmap_offset += packet_index.packet_size >> LOG2_CHAR_BIT; |
1713 | ||
1714 | return 0; | |
1715 | ||
1716 | /* Retry with larger mapping */ | |
1717 | retry: | |
1718 | if (packet_map_len == ((filesize - pos->mmap_offset) << LOG2_CHAR_BIT)) { | |
1719 | /* | |
1720 | * Reached EOF, but still expecting header/context data. | |
1721 | */ | |
1722 | fprintf(stderr, "[error] Reached end of file, but still expecting header or context fields.\n"); | |
1723 | return -EFAULT; | |
1724 | } | |
1725 | /* Double the mapping len, and retry */ | |
1726 | tmp_map_len = packet_map_len << 1; | |
1727 | if (tmp_map_len >> 1 != packet_map_len) { | |
1728 | /* Overflow */ | |
888ec52a | 1729 | fprintf(stderr, "[error] Packet mapping length overflow\n"); |
ec323464 | 1730 | return -EFAULT; |
0f980a35 | 1731 | } |
ec323464 MD |
1732 | packet_map_len = tmp_map_len; |
1733 | goto begin; | |
1734 | } | |
1735 | ||
1736 | static | |
1737 | int create_stream_packet_index(struct ctf_trace *td, | |
1738 | struct ctf_file_stream *file_stream) | |
1739 | { | |
1740 | struct ctf_stream_pos *pos; | |
1741 | struct stat filestats; | |
1742 | int ret; | |
1743 | ||
1744 | pos = &file_stream->pos; | |
0f980a35 | 1745 | |
ec323464 MD |
1746 | ret = fstat(pos->fd, &filestats); |
1747 | if (ret < 0) | |
1748 | return ret; | |
1749 | ||
5bfcad93 MD |
1750 | /* Deal with empty files */ |
1751 | if (!filestats.st_size) { | |
1752 | if (file_stream->parent.trace_packet_header | |
1753 | || file_stream->parent.stream_packet_context) { | |
1754 | /* | |
1755 | * We expect a trace packet header and/or stream packet | |
1756 | * context. Since a trace needs to have at least one | |
1757 | * packet, empty files are therefore not accepted. | |
1758 | */ | |
1759 | fprintf(stderr, "[error] Encountered an empty file, but expecting a trace packet header.\n"); | |
1760 | return -EINVAL; | |
1761 | } else { | |
1762 | /* | |
1763 | * Without trace packet header nor stream packet | |
1764 | * context, a one-packet trace can indeed be empty. This | |
1765 | * is only valid if there is only one stream class: 0. | |
1766 | */ | |
1767 | ret = stream_assign_class(td, file_stream, 0); | |
1768 | if (ret) | |
1769 | return ret; | |
1770 | return 0; | |
1771 | } | |
1772 | } | |
1773 | ||
ec323464 MD |
1774 | for (pos->mmap_offset = 0; pos->mmap_offset < filestats.st_size; ) { |
1775 | ret = create_stream_one_packet_index(pos, td, file_stream, | |
1776 | filestats.st_size); | |
1777 | if (ret) | |
1778 | return ret; | |
1779 | } | |
0f980a35 MD |
1780 | return 0; |
1781 | } | |
1782 | ||
e28d4618 | 1783 | static |
9e88d150 | 1784 | int create_trace_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream) |
e28d4618 MD |
1785 | { |
1786 | int ret; | |
1787 | ||
1788 | if (td->packet_header_decl) { | |
0d69b916 | 1789 | struct bt_definition *definition = |
e28d4618 MD |
1790 | td->packet_header_decl->p.definition_new(&td->packet_header_decl->p, |
1791 | stream->parent_def_scope, 0, 0, "trace.packet.header"); | |
1792 | if (!definition) { | |
1793 | ret = -EINVAL; | |
1794 | goto error; | |
1795 | } | |
1796 | stream->trace_packet_header = | |
1797 | container_of(definition, struct definition_struct, p); | |
1798 | stream->parent_def_scope = stream->trace_packet_header->p.scope; | |
1799 | } | |
1800 | ||
1801 | return 0; | |
1802 | ||
1803 | error: | |
888ec52a | 1804 | fprintf(stderr, "[error] Unable to create trace definitions: %s\n", strerror(-ret)); |
e28d4618 MD |
1805 | return ret; |
1806 | } | |
1807 | ||
0ace7505 JD |
1808 | static |
1809 | int import_stream_packet_index(struct ctf_trace *td, | |
1810 | struct ctf_file_stream *file_stream) | |
1811 | { | |
1812 | struct ctf_stream_declaration *stream; | |
1813 | struct ctf_stream_pos *pos; | |
1814 | struct ctf_packet_index ctf_index; | |
1815 | struct ctf_packet_index_file_hdr index_hdr; | |
1816 | struct packet_index index; | |
0ace7505 JD |
1817 | int ret = 0; |
1818 | int first_packet = 1; | |
1819 | size_t len; | |
1820 | ||
1821 | pos = &file_stream->pos; | |
1822 | ||
1823 | len = fread(&index_hdr, sizeof(index_hdr), 1, pos->index_fp); | |
1824 | if (len != 1) { | |
1825 | perror("read index file header"); | |
1826 | goto error; | |
1827 | } | |
1828 | ||
1829 | /* Check the index header */ | |
1830 | if (be32toh(index_hdr.magic) != CTF_INDEX_MAGIC) { | |
1831 | fprintf(stderr, "[error] wrong index magic\n"); | |
1832 | ret = -1; | |
1833 | goto error; | |
1834 | } | |
1835 | if (be32toh(index_hdr.index_major) != CTF_INDEX_MAJOR) { | |
1836 | fprintf(stderr, "[error] Incompatible index file %" PRIu64 | |
1837 | ".%" PRIu64 ", supported %d.%d\n", | |
1838 | be64toh(index_hdr.index_major), | |
1839 | be64toh(index_hdr.index_minor), CTF_INDEX_MAJOR, | |
1840 | CTF_INDEX_MINOR); | |
1841 | ret = -1; | |
1842 | goto error; | |
1843 | } | |
a74d9cb2 MD |
1844 | if (index_hdr.packet_index_len == 0) { |
1845 | fprintf(stderr, "[error] Packet index length cannot be 0.\n"); | |
1846 | ret = -1; | |
1847 | goto error; | |
1848 | } | |
0ace7505 | 1849 | |
ad40ac1a MD |
1850 | while (fread(&ctf_index, index_hdr.packet_index_len, 1, |
1851 | pos->index_fp) == 1) { | |
0ace7505 JD |
1852 | uint64_t stream_id; |
1853 | ||
1854 | memset(&index, 0, sizeof(index)); | |
1855 | index.offset = be64toh(ctf_index.offset); | |
1856 | index.packet_size = be64toh(ctf_index.packet_size); | |
1857 | index.content_size = be64toh(ctf_index.content_size); | |
1858 | index.timestamp_begin = be64toh(ctf_index.timestamp_begin); | |
1859 | index.timestamp_end = be64toh(ctf_index.timestamp_end); | |
1860 | index.events_discarded = be64toh(ctf_index.events_discarded); | |
1861 | index.events_discarded_len = 64; | |
e69dd258 | 1862 | index.data_offset = -1; |
0ace7505 JD |
1863 | stream_id = be64toh(ctf_index.stream_id); |
1864 | ||
1865 | if (!first_packet) { | |
1866 | /* add index to packet array */ | |
1867 | g_array_append_val(file_stream->pos.packet_cycles_index, index); | |
1868 | continue; | |
1869 | } | |
1870 | ||
1871 | file_stream->parent.stream_id = stream_id; | |
1872 | stream = g_ptr_array_index(td->streams, stream_id); | |
1873 | if (!stream) { | |
1874 | fprintf(stderr, "[error] Stream %" PRIu64 | |
1875 | " is not declared in metadata.\n", | |
1876 | stream_id); | |
1877 | ret = -EINVAL; | |
1878 | goto error; | |
1879 | } | |
1880 | file_stream->parent.stream_class = stream; | |
1881 | ret = create_stream_definitions(td, &file_stream->parent); | |
1882 | if (ret) | |
1883 | goto error; | |
1884 | first_packet = 0; | |
1885 | /* add index to packet array */ | |
1886 | g_array_append_val(file_stream->pos.packet_cycles_index, index); | |
1887 | } | |
1888 | ||
1889 | ret = 0; | |
1890 | ||
1891 | error: | |
1892 | return ret; | |
1893 | } | |
1894 | ||
0f980a35 MD |
1895 | /* |
1896 | * Note: many file streams can inherit from the same stream class | |
1897 | * description (metadata). | |
1898 | */ | |
1899 | static | |
b086c01a | 1900 | int ctf_open_file_stream_read(struct ctf_trace *td, const char *path, int flags, |
1cf393f6 | 1901 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
b086c01a | 1902 | int whence)) |
0f980a35 | 1903 | { |
f824ae04 | 1904 | int ret, fd, closeret; |
0f980a35 | 1905 | struct ctf_file_stream *file_stream; |
ff075710 | 1906 | struct stat statbuf; |
0ace7505 | 1907 | char *index_name; |
0f980a35 | 1908 | |
ff075710 MD |
1909 | fd = openat(td->dirfd, path, flags); |
1910 | if (fd < 0) { | |
a569a564 | 1911 | perror("File stream openat()"); |
ff075710 | 1912 | ret = fd; |
0f980a35 | 1913 | goto error; |
a569a564 | 1914 | } |
ff075710 MD |
1915 | |
1916 | /* Don't try to mmap subdirectories. Skip them, return success. */ | |
1917 | ret = fstat(fd, &statbuf); | |
1918 | if (ret) { | |
1919 | perror("File stream fstat()"); | |
1920 | goto fstat_error; | |
1921 | } | |
1922 | if (S_ISDIR(statbuf.st_mode)) { | |
0ace7505 JD |
1923 | if (strncmp(path, "index", 5) != 0) { |
1924 | fprintf(stderr, "[warning] Skipping directory '%s' " | |
1925 | "found in trace\n", path); | |
1926 | } | |
ff075710 MD |
1927 | ret = 0; |
1928 | goto fd_is_dir_ok; | |
1929 | } | |
1930 | ||
0f980a35 | 1931 | file_stream = g_new0(struct ctf_file_stream, 1); |
3a25e036 | 1932 | file_stream->pos.last_offset = LAST_OFFSET_POISON; |
0ace7505 JD |
1933 | file_stream->pos.fd = -1; |
1934 | file_stream->pos.index_fp = NULL; | |
b086c01a | 1935 | |
87148dc7 MD |
1936 | strncpy(file_stream->parent.path, path, PATH_MAX); |
1937 | file_stream->parent.path[PATH_MAX - 1] = '\0'; | |
1938 | ||
06789ffd MD |
1939 | if (packet_seek) { |
1940 | file_stream->pos.packet_seek = packet_seek; | |
b086c01a | 1941 | } else { |
06789ffd | 1942 | fprintf(stderr, "[error] packet_seek function undefined.\n"); |
b086c01a JD |
1943 | ret = -1; |
1944 | goto error_def; | |
1945 | } | |
1946 | ||
ca334c72 | 1947 | ret = ctf_init_pos(&file_stream->pos, &td->parent, fd, flags); |
f824ae04 MD |
1948 | if (ret) |
1949 | goto error_def; | |
2d0bea29 | 1950 | ret = create_trace_definitions(td, &file_stream->parent); |
e28d4618 MD |
1951 | if (ret) |
1952 | goto error_def; | |
25ccc85b | 1953 | /* |
50052405 | 1954 | * For now, only a single clock per trace is supported. |
25ccc85b | 1955 | */ |
7ec78969 | 1956 | file_stream->parent.current_clock = td->parent.single_clock; |
0ace7505 JD |
1957 | |
1958 | /* | |
1959 | * Allocate the index name for this stream and try to open it. | |
1960 | */ | |
1961 | index_name = malloc((strlen(path) + sizeof(INDEX_PATH)) * sizeof(char)); | |
1962 | if (!index_name) { | |
1963 | fprintf(stderr, "[error] Cannot allocate index filename\n"); | |
1964 | goto error_def; | |
888ec52a | 1965 | } |
0ace7505 JD |
1966 | snprintf(index_name, strlen(path) + sizeof(INDEX_PATH), |
1967 | INDEX_PATH, path); | |
1968 | ||
1969 | if (faccessat(td->dirfd, index_name, O_RDONLY, flags) < 0) { | |
1970 | ret = create_stream_packet_index(td, file_stream); | |
1971 | if (ret) { | |
1972 | fprintf(stderr, "[error] Stream index creation error.\n"); | |
1973 | goto error_index; | |
1974 | } | |
1975 | } else { | |
1976 | ret = openat(td->dirfd, index_name, flags); | |
1977 | if (ret < 0) { | |
1978 | perror("Index file openat()"); | |
1979 | ret = -1; | |
1980 | goto error_free; | |
1981 | } | |
1982 | file_stream->pos.index_fp = fdopen(ret, "r"); | |
2f0c6a52 MD |
1983 | if (!file_stream->pos.index_fp) { |
1984 | perror("fdopen() error"); | |
1985 | goto error_free; | |
1986 | } | |
0ace7505 JD |
1987 | ret = import_stream_packet_index(td, file_stream); |
1988 | if (ret) { | |
1989 | ret = -1; | |
1990 | goto error_index; | |
1991 | } | |
1992 | ret = fclose(file_stream->pos.index_fp); | |
1993 | if (ret < 0) { | |
1994 | perror("close index"); | |
1995 | goto error_free; | |
1996 | } | |
1997 | } | |
1998 | free(index_name); | |
1999 | ||
0f980a35 | 2000 | /* Add stream file to stream class */ |
2d0bea29 MD |
2001 | g_ptr_array_add(file_stream->parent.stream_class->streams, |
2002 | &file_stream->parent); | |
0f980a35 MD |
2003 | return 0; |
2004 | ||
2005 | error_index: | |
0ace7505 JD |
2006 | if (file_stream->pos.index_fp) { |
2007 | ret = fclose(file_stream->pos.index_fp); | |
2008 | if (ret < 0) { | |
2009 | perror("close index"); | |
2010 | } | |
2011 | } | |
2d0bea29 | 2012 | if (file_stream->parent.trace_packet_header) |
13fad8b6 | 2013 | bt_definition_unref(&file_stream->parent.trace_packet_header->p); |
0ace7505 JD |
2014 | error_free: |
2015 | free(index_name); | |
e28d4618 | 2016 | error_def: |
f824ae04 MD |
2017 | closeret = ctf_fini_pos(&file_stream->pos); |
2018 | if (closeret) { | |
2019 | fprintf(stderr, "Error on ctf_fini_pos\n"); | |
2020 | } | |
0f980a35 | 2021 | g_free(file_stream); |
ff075710 MD |
2022 | fd_is_dir_ok: |
2023 | fstat_error: | |
f824ae04 MD |
2024 | closeret = close(fd); |
2025 | if (closeret) { | |
2026 | perror("Error on fd close"); | |
2027 | } | |
0f980a35 | 2028 | error: |
65102a8c MD |
2029 | return ret; |
2030 | } | |
2031 | ||
bbefb8dd | 2032 | static |
5b80ddfb | 2033 | int ctf_open_trace_read(struct ctf_trace *td, |
8c250d87 | 2034 | const char *path, int flags, |
1cf393f6 | 2035 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
ae23d232 | 2036 | int whence), FILE *metadata_fp) |
bbefb8dd | 2037 | { |
f824ae04 | 2038 | int ret, closeret; |
65102a8c MD |
2039 | struct dirent *dirent; |
2040 | struct dirent *diriter; | |
2041 | size_t dirent_len; | |
0ace7505 | 2042 | char *ext; |
bbefb8dd | 2043 | |
46322b33 | 2044 | td->flags = flags; |
bbefb8dd MD |
2045 | |
2046 | /* Open trace directory */ | |
46322b33 MD |
2047 | td->dir = opendir(path); |
2048 | if (!td->dir) { | |
6a6b384c | 2049 | fprintf(stderr, "[error] Unable to open trace directory \"%s\".\n", path); |
bbefb8dd MD |
2050 | ret = -ENOENT; |
2051 | goto error; | |
2052 | } | |
2053 | ||
46322b33 MD |
2054 | td->dirfd = open(path, 0); |
2055 | if (td->dirfd < 0) { | |
6a6b384c | 2056 | fprintf(stderr, "[error] Unable to open trace directory file descriptor for path \"%s\".\n", path); |
a569a564 MD |
2057 | perror("Trace directory open"); |
2058 | ret = -errno; | |
65102a8c MD |
2059 | goto error_dirfd; |
2060 | } | |
caf929fa MD |
2061 | strncpy(td->parent.path, path, sizeof(td->parent.path)); |
2062 | td->parent.path[sizeof(td->parent.path) - 1] = '\0'; | |
0f980a35 | 2063 | |
65102a8c MD |
2064 | /* |
2065 | * Keep the metadata file separate. | |
2066 | */ | |
bbefb8dd | 2067 | |
06789ffd | 2068 | ret = ctf_open_trace_metadata_read(td, packet_seek, metadata_fp); |
65102a8c | 2069 | if (ret) { |
6a6b384c | 2070 | fprintf(stderr, "[warning] Unable to open trace metadata for path \"%s\".\n", path); |
65102a8c MD |
2071 | goto error_metadata; |
2072 | } | |
bbefb8dd MD |
2073 | |
2074 | /* | |
2075 | * Open each stream: for each file, try to open, check magic | |
2076 | * number, and get the stream ID to add to the right location in | |
2077 | * the stream array. | |
bbefb8dd MD |
2078 | */ |
2079 | ||
65102a8c | 2080 | dirent_len = offsetof(struct dirent, d_name) + |
46322b33 | 2081 | fpathconf(td->dirfd, _PC_NAME_MAX) + 1; |
bbefb8dd | 2082 | |
65102a8c | 2083 | dirent = malloc(dirent_len); |
bbefb8dd | 2084 | |
65102a8c | 2085 | for (;;) { |
46322b33 | 2086 | ret = readdir_r(td->dir, dirent, &diriter); |
65102a8c | 2087 | if (ret) { |
3394d22e | 2088 | fprintf(stderr, "[error] Readdir error.\n"); |
65102a8c | 2089 | goto readdir_error; |
65102a8c MD |
2090 | } |
2091 | if (!diriter) | |
2092 | break; | |
d8ea2d29 MD |
2093 | /* Ignore hidden files, ., .. and metadata. */ |
2094 | if (!strncmp(diriter->d_name, ".", 1) | |
65102a8c MD |
2095 | || !strcmp(diriter->d_name, "..") |
2096 | || !strcmp(diriter->d_name, "metadata")) | |
2097 | continue; | |
0ace7505 JD |
2098 | |
2099 | /* Ignore index files : *.idx */ | |
2100 | ext = strrchr(diriter->d_name, '.'); | |
2101 | if (ext && (!strcmp(ext, ".idx"))) { | |
2102 | continue; | |
2103 | } | |
2104 | ||
06789ffd MD |
2105 | ret = ctf_open_file_stream_read(td, diriter->d_name, |
2106 | flags, packet_seek); | |
dc48ecad | 2107 | if (ret) { |
3394d22e | 2108 | fprintf(stderr, "[error] Open file stream error.\n"); |
dc48ecad MD |
2109 | goto readdir_error; |
2110 | } | |
65102a8c | 2111 | } |
bbefb8dd | 2112 | |
65102a8c | 2113 | free(dirent); |
bbefb8dd | 2114 | return 0; |
65102a8c MD |
2115 | |
2116 | readdir_error: | |
2117 | free(dirent); | |
2118 | error_metadata: | |
f824ae04 MD |
2119 | closeret = close(td->dirfd); |
2120 | if (closeret) { | |
2121 | perror("Error on fd close"); | |
2122 | } | |
65102a8c | 2123 | error_dirfd: |
f824ae04 MD |
2124 | closeret = closedir(td->dir); |
2125 | if (closeret) { | |
2126 | perror("Error on closedir"); | |
2127 | } | |
bbefb8dd MD |
2128 | error: |
2129 | return ret; | |
2130 | } | |
2131 | ||
03798a93 JD |
2132 | /* |
2133 | * ctf_open_trace: Open a CTF trace and index it. | |
2134 | * Note that the user must seek the trace after the open (using the iterator) | |
2135 | * since the index creation read it entirely. | |
2136 | */ | |
e9378815 | 2137 | static |
1b8455b7 | 2138 | struct bt_trace_descriptor *ctf_open_trace(const char *path, int flags, |
1cf393f6 | 2139 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
ae23d232 | 2140 | int whence), FILE *metadata_fp) |
bbefb8dd | 2141 | { |
46322b33 | 2142 | struct ctf_trace *td; |
bbefb8dd MD |
2143 | int ret; |
2144 | ||
2715de36 MD |
2145 | /* |
2146 | * If packet_seek is NULL, we provide our default version. | |
2147 | */ | |
2148 | if (!packet_seek) | |
2149 | packet_seek = ctf_packet_seek; | |
2150 | ||
46322b33 | 2151 | td = g_new0(struct ctf_trace, 1); |
bbefb8dd | 2152 | |
8c572eba | 2153 | switch (flags & O_ACCMODE) { |
bbefb8dd | 2154 | case O_RDONLY: |
b61922b5 | 2155 | if (!path) { |
3394d22e | 2156 | fprintf(stderr, "[error] Path missing for input CTF trace.\n"); |
b61922b5 MD |
2157 | goto error; |
2158 | } | |
06789ffd | 2159 | ret = ctf_open_trace_read(td, path, flags, packet_seek, metadata_fp); |
bbefb8dd MD |
2160 | if (ret) |
2161 | goto error; | |
2162 | break; | |
989c73bc | 2163 | case O_RDWR: |
3394d22e | 2164 | fprintf(stderr, "[error] Opening CTF traces for output is not supported yet.\n"); |
46322b33 | 2165 | goto error; |
bbefb8dd | 2166 | default: |
3394d22e | 2167 | fprintf(stderr, "[error] Incorrect open flags.\n"); |
bbefb8dd MD |
2168 | goto error; |
2169 | } | |
2170 | ||
46322b33 | 2171 | return &td->parent; |
bbefb8dd MD |
2172 | error: |
2173 | g_free(td); | |
2174 | return NULL; | |
2175 | } | |
2176 | ||
2e937fb4 | 2177 | static |
f571dfb1 | 2178 | void ctf_init_mmap_pos(struct ctf_stream_pos *pos, |
c150f912 | 2179 | struct bt_mmap_stream *mmap_info) |
f571dfb1 JD |
2180 | { |
2181 | pos->mmap_offset = 0; | |
2182 | pos->packet_size = 0; | |
2183 | pos->content_size = 0; | |
2184 | pos->content_size_loc = NULL; | |
2185 | pos->fd = mmap_info->fd; | |
aee35fcc | 2186 | pos->base_mma = NULL; |
f571dfb1 JD |
2187 | pos->offset = 0; |
2188 | pos->dummy = false; | |
2189 | pos->cur_index = 0; | |
03798a93 JD |
2190 | pos->packet_cycles_index = NULL; |
2191 | pos->packet_real_index = NULL; | |
f571dfb1 JD |
2192 | pos->prot = PROT_READ; |
2193 | pos->flags = MAP_PRIVATE; | |
2194 | pos->parent.rw_table = read_dispatch_table; | |
2195 | pos->parent.event_cb = ctf_read_event; | |
731087d8 | 2196 | pos->priv = mmap_info->priv; |
f571dfb1 JD |
2197 | } |
2198 | ||
2199 | static | |
2200 | int prepare_mmap_stream_definition(struct ctf_trace *td, | |
2201 | struct ctf_file_stream *file_stream) | |
2202 | { | |
f380e105 | 2203 | struct ctf_stream_declaration *stream; |
f571dfb1 JD |
2204 | uint64_t stream_id = 0; |
2205 | int ret; | |
2206 | ||
2207 | file_stream->parent.stream_id = stream_id; | |
2208 | if (stream_id >= td->streams->len) { | |
3394d22e | 2209 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared " |
f571dfb1 JD |
2210 | "in metadata.\n", stream_id); |
2211 | ret = -EINVAL; | |
2212 | goto end; | |
2213 | } | |
2214 | stream = g_ptr_array_index(td->streams, stream_id); | |
2215 | if (!stream) { | |
3394d22e | 2216 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared " |
f571dfb1 JD |
2217 | "in metadata.\n", stream_id); |
2218 | ret = -EINVAL; | |
2219 | goto end; | |
2220 | } | |
2221 | file_stream->parent.stream_class = stream; | |
2222 | ret = create_stream_definitions(td, &file_stream->parent); | |
2223 | end: | |
2224 | return ret; | |
2225 | } | |
2226 | ||
2227 | static | |
2228 | int ctf_open_mmap_stream_read(struct ctf_trace *td, | |
c150f912 | 2229 | struct bt_mmap_stream *mmap_info, |
1cf393f6 | 2230 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
f571dfb1 JD |
2231 | int whence)) |
2232 | { | |
2233 | int ret; | |
2234 | struct ctf_file_stream *file_stream; | |
2235 | ||
2236 | file_stream = g_new0(struct ctf_file_stream, 1); | |
3a25e036 | 2237 | file_stream->pos.last_offset = LAST_OFFSET_POISON; |
f571dfb1 JD |
2238 | ctf_init_mmap_pos(&file_stream->pos, mmap_info); |
2239 | ||
06789ffd | 2240 | file_stream->pos.packet_seek = packet_seek; |
f571dfb1 JD |
2241 | |
2242 | ret = create_trace_definitions(td, &file_stream->parent); | |
2243 | if (ret) { | |
2244 | goto error_def; | |
2245 | } | |
2246 | ||
2247 | ret = prepare_mmap_stream_definition(td, file_stream); | |
2248 | if (ret) | |
2249 | goto error_index; | |
2250 | ||
f7bbd502 | 2251 | /* |
50052405 | 2252 | * For now, only a single clock per trace is supported. |
f7bbd502 | 2253 | */ |
7ec78969 | 2254 | file_stream->parent.current_clock = td->parent.single_clock; |
f7bbd502 | 2255 | |
f571dfb1 JD |
2256 | /* Add stream file to stream class */ |
2257 | g_ptr_array_add(file_stream->parent.stream_class->streams, | |
2258 | &file_stream->parent); | |
2259 | return 0; | |
2260 | ||
2261 | error_index: | |
2262 | if (file_stream->parent.trace_packet_header) | |
13fad8b6 | 2263 | bt_definition_unref(&file_stream->parent.trace_packet_header->p); |
f571dfb1 JD |
2264 | error_def: |
2265 | g_free(file_stream); | |
2266 | return ret; | |
2267 | } | |
2268 | ||
2e937fb4 | 2269 | static |
f571dfb1 | 2270 | int ctf_open_mmap_trace_read(struct ctf_trace *td, |
c150f912 | 2271 | struct bt_mmap_stream_list *mmap_list, |
1cf393f6 | 2272 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
f571dfb1 JD |
2273 | int whence), |
2274 | FILE *metadata_fp) | |
2275 | { | |
2276 | int ret; | |
c150f912 | 2277 | struct bt_mmap_stream *mmap_info; |
f571dfb1 | 2278 | |
06789ffd | 2279 | ret = ctf_open_trace_metadata_read(td, ctf_packet_seek, metadata_fp); |
f571dfb1 JD |
2280 | if (ret) { |
2281 | goto error; | |
2282 | } | |
2283 | ||
2284 | /* | |
2285 | * for each stream, try to open, check magic number, and get the | |
2286 | * stream ID to add to the right location in the stream array. | |
2287 | */ | |
3122e6f0 | 2288 | bt_list_for_each_entry(mmap_info, &mmap_list->head, list) { |
06789ffd | 2289 | ret = ctf_open_mmap_stream_read(td, mmap_info, packet_seek); |
f571dfb1 | 2290 | if (ret) { |
3394d22e | 2291 | fprintf(stderr, "[error] Open file mmap stream error.\n"); |
f571dfb1 JD |
2292 | goto error; |
2293 | } | |
2294 | } | |
2295 | ||
2296 | return 0; | |
2297 | ||
2298 | error: | |
2299 | return ret; | |
2300 | } | |
2301 | ||
2302 | static | |
1b8455b7 | 2303 | struct bt_trace_descriptor *ctf_open_mmap_trace( |
c150f912 | 2304 | struct bt_mmap_stream_list *mmap_list, |
1cf393f6 | 2305 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
20d0dcf9 | 2306 | int whence), |
f571dfb1 JD |
2307 | FILE *metadata_fp) |
2308 | { | |
2309 | struct ctf_trace *td; | |
2310 | int ret; | |
2311 | ||
2312 | if (!metadata_fp) { | |
2313 | fprintf(stderr, "[error] No metadata file pointer associated, " | |
2314 | "required for mmap parsing\n"); | |
2315 | goto error; | |
2316 | } | |
06789ffd MD |
2317 | if (!packet_seek) { |
2318 | fprintf(stderr, "[error] packet_seek function undefined.\n"); | |
f571dfb1 JD |
2319 | goto error; |
2320 | } | |
2321 | td = g_new0(struct ctf_trace, 1); | |
06789ffd | 2322 | ret = ctf_open_mmap_trace_read(td, mmap_list, packet_seek, metadata_fp); |
f571dfb1 JD |
2323 | if (ret) |
2324 | goto error_free; | |
2325 | ||
2326 | return &td->parent; | |
2327 | ||
2328 | error_free: | |
2329 | g_free(td); | |
2330 | error: | |
2331 | return NULL; | |
2332 | } | |
2333 | ||
03798a93 | 2334 | static |
1b8455b7 | 2335 | int ctf_convert_index_timestamp(struct bt_trace_descriptor *tdp) |
03798a93 JD |
2336 | { |
2337 | int i, j, k; | |
2338 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); | |
2339 | ||
2340 | /* for each stream_class */ | |
2341 | for (i = 0; i < td->streams->len; i++) { | |
2342 | struct ctf_stream_declaration *stream_class; | |
2343 | ||
2344 | stream_class = g_ptr_array_index(td->streams, i); | |
2345 | if (!stream_class) | |
2346 | continue; | |
2347 | /* for each file_stream */ | |
2348 | for (j = 0; j < stream_class->streams->len; j++) { | |
2349 | struct ctf_stream_definition *stream; | |
2350 | struct ctf_stream_pos *stream_pos; | |
2351 | struct ctf_file_stream *cfs; | |
2352 | ||
2353 | stream = g_ptr_array_index(stream_class->streams, j); | |
2354 | if (!stream) | |
2355 | continue; | |
2356 | cfs = container_of(stream, struct ctf_file_stream, | |
2357 | parent); | |
2358 | stream_pos = &cfs->pos; | |
afe9cd4a JD |
2359 | if (!stream_pos->packet_cycles_index) |
2360 | continue; | |
2361 | ||
03798a93 JD |
2362 | for (k = 0; k < stream_pos->packet_cycles_index->len; k++) { |
2363 | struct packet_index *index; | |
2364 | struct packet_index new_index; | |
2365 | ||
2366 | index = &g_array_index(stream_pos->packet_cycles_index, | |
2367 | struct packet_index, k); | |
2368 | memcpy(&new_index, index, | |
2369 | sizeof(struct packet_index)); | |
2370 | new_index.timestamp_begin = | |
2371 | ctf_get_real_timestamp(stream, | |
2372 | index->timestamp_begin); | |
2373 | new_index.timestamp_end = | |
2374 | ctf_get_real_timestamp(stream, | |
2375 | index->timestamp_end); | |
2376 | g_array_append_val(stream_pos->packet_real_index, | |
2377 | new_index); | |
2378 | } | |
2379 | } | |
2380 | } | |
2381 | return 0; | |
2382 | } | |
2383 | ||
0f980a35 | 2384 | static |
f824ae04 | 2385 | int ctf_close_file_stream(struct ctf_file_stream *file_stream) |
0f980a35 | 2386 | { |
f824ae04 MD |
2387 | int ret; |
2388 | ||
2389 | ret = ctf_fini_pos(&file_stream->pos); | |
2390 | if (ret) { | |
2391 | fprintf(stderr, "Error on ctf_fini_pos\n"); | |
2392 | return -1; | |
2393 | } | |
500634be JD |
2394 | if (file_stream->pos.fd >= 0) { |
2395 | ret = close(file_stream->pos.fd); | |
2396 | if (ret) { | |
2397 | perror("Error closing file fd"); | |
2398 | return -1; | |
2399 | } | |
f824ae04 MD |
2400 | } |
2401 | return 0; | |
0f980a35 MD |
2402 | } |
2403 | ||
e9378815 | 2404 | static |
1b8455b7 | 2405 | int ctf_close_trace(struct bt_trace_descriptor *tdp) |
bbefb8dd | 2406 | { |
46322b33 | 2407 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); |
08c82b90 | 2408 | int ret; |
0f980a35 | 2409 | |
46322b33 | 2410 | if (td->streams) { |
08c82b90 MD |
2411 | int i; |
2412 | ||
46322b33 | 2413 | for (i = 0; i < td->streams->len; i++) { |
f380e105 | 2414 | struct ctf_stream_declaration *stream; |
0f980a35 | 2415 | int j; |
e9378815 | 2416 | |
46322b33 | 2417 | stream = g_ptr_array_index(td->streams, i); |
e9378815 MD |
2418 | if (!stream) |
2419 | continue; | |
2d0bea29 | 2420 | for (j = 0; j < stream->streams->len; j++) { |
0f980a35 | 2421 | struct ctf_file_stream *file_stream; |
15d4fe3c JD |
2422 | file_stream = container_of(g_ptr_array_index(stream->streams, j), |
2423 | struct ctf_file_stream, parent); | |
f824ae04 MD |
2424 | ret = ctf_close_file_stream(file_stream); |
2425 | if (ret) | |
2426 | return ret; | |
0f980a35 | 2427 | } |
e003ab50 | 2428 | } |
e003ab50 | 2429 | } |
15d4fe3c | 2430 | ctf_destroy_metadata(td); |
500634be JD |
2431 | if (td->dirfd >= 0) { |
2432 | ret = close(td->dirfd); | |
2433 | if (ret) { | |
2434 | perror("Error closing dirfd"); | |
2435 | return ret; | |
2436 | } | |
f824ae04 | 2437 | } |
500634be JD |
2438 | if (td->dir) { |
2439 | ret = closedir(td->dir); | |
2440 | if (ret) { | |
2441 | perror("Error closedir"); | |
2442 | return ret; | |
2443 | } | |
f824ae04 | 2444 | } |
7237592a | 2445 | free(td->metadata_string); |
bbefb8dd | 2446 | g_free(td); |
f824ae04 | 2447 | return 0; |
bbefb8dd MD |
2448 | } |
2449 | ||
98a04903 | 2450 | static |
1b8455b7 | 2451 | void ctf_set_context(struct bt_trace_descriptor *descriptor, |
98a04903 JD |
2452 | struct bt_context *ctx) |
2453 | { | |
2454 | struct ctf_trace *td = container_of(descriptor, struct ctf_trace, | |
2455 | parent); | |
2456 | ||
45807148 | 2457 | td->parent.ctx = ctx; |
98a04903 JD |
2458 | } |
2459 | ||
2460 | static | |
1b8455b7 | 2461 | void ctf_set_handle(struct bt_trace_descriptor *descriptor, |
98a04903 JD |
2462 | struct bt_trace_handle *handle) |
2463 | { | |
2464 | struct ctf_trace *td = container_of(descriptor, struct ctf_trace, | |
2465 | parent); | |
2466 | ||
4d086981 | 2467 | td->parent.handle = handle; |
98a04903 JD |
2468 | } |
2469 | ||
95febab3 | 2470 | static |
7fb21036 | 2471 | void __attribute__((constructor)) ctf_init(void) |
fc93b2bd MD |
2472 | { |
2473 | int ret; | |
2474 | ||
4c8bfb7e | 2475 | ctf_format.name = g_quark_from_static_string("ctf"); |
fc93b2bd MD |
2476 | ret = bt_register_format(&ctf_format); |
2477 | assert(!ret); | |
2478 | } | |
698f0fe4 | 2479 | |
95febab3 MD |
2480 | static |
2481 | void __attribute__((destructor)) ctf_exit(void) | |
2482 | { | |
2483 | bt_unregister_format(&ctf_format); | |
2484 | } |