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