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> |
edcad9c1 | 56 | #include <babeltrace/compat/fcntl.h> |
65102a8c | 57 | |
ec323464 MD |
58 | #define LOG2_CHAR_BIT 3 |
59 | ||
60 | /* | |
61 | * Length of first attempt at mapping a packet header, in bits. | |
62 | */ | |
63 | #define DEFAULT_HEADER_LEN (getpagesize() * CHAR_BIT) | |
64 | ||
0f980a35 | 65 | /* |
ec323464 | 66 | * Lenght of packet to write, in bits. |
0f980a35 | 67 | */ |
8c572eba | 68 | #define WRITE_PACKET_LEN (getpagesize() * 8 * CHAR_BIT) |
0f980a35 | 69 | |
a0fe7d97 MD |
70 | #ifndef min |
71 | #define min(a, b) (((a) < (b)) ? (a) : (b)) | |
72 | #endif | |
73 | ||
7d97fad9 MD |
74 | #define NSEC_PER_SEC 1000000000ULL |
75 | ||
0ace7505 JD |
76 | #define INDEX_PATH "./index/%s.idx" |
77 | ||
03798a93 | 78 | int opt_clock_cycles, |
7d97fad9 MD |
79 | opt_clock_seconds, |
80 | opt_clock_date, | |
81 | opt_clock_gmt; | |
82 | ||
83 | uint64_t opt_clock_offset; | |
65923160 | 84 | uint64_t opt_clock_offset_ns; |
7d97fad9 | 85 | |
65102a8c | 86 | extern int yydebug; |
bbefb8dd | 87 | |
2654fe9b MD |
88 | /* |
89 | * TODO: babeltrace_ctf_console_output ensures that we only print | |
90 | * discarded events when ctf-text plugin is used. Should be cleaned up | |
91 | * with the plugin system redesign. | |
92 | */ | |
93 | int babeltrace_ctf_console_output; | |
94 | ||
e9378815 | 95 | static |
1b8455b7 | 96 | struct bt_trace_descriptor *ctf_open_trace(const char *path, int flags, |
1cf393f6 | 97 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
20d0dcf9 MD |
98 | int whence), |
99 | FILE *metadata_fp); | |
e9378815 | 100 | static |
1b8455b7 | 101 | struct bt_trace_descriptor *ctf_open_mmap_trace( |
c150f912 | 102 | struct bt_mmap_stream_list *mmap_list, |
1cf393f6 | 103 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
20d0dcf9 | 104 | int whence), |
f571dfb1 | 105 | FILE *metadata_fp); |
98a04903 | 106 | static |
1b8455b7 | 107 | void ctf_set_context(struct bt_trace_descriptor *descriptor, |
98a04903 JD |
108 | struct bt_context *ctx); |
109 | static | |
1b8455b7 | 110 | void ctf_set_handle(struct bt_trace_descriptor *descriptor, |
98a04903 | 111 | struct bt_trace_handle *handle); |
f571dfb1 JD |
112 | |
113 | static | |
1b8455b7 | 114 | int ctf_close_trace(struct bt_trace_descriptor *descriptor); |
30c276af | 115 | static |
1b8455b7 | 116 | uint64_t ctf_timestamp_begin(struct bt_trace_descriptor *descriptor, |
03798a93 | 117 | struct bt_trace_handle *handle, enum bt_clock_type type); |
30c276af | 118 | static |
1b8455b7 | 119 | uint64_t ctf_timestamp_end(struct bt_trace_descriptor *descriptor, |
03798a93 JD |
120 | struct bt_trace_handle *handle, enum bt_clock_type type); |
121 | static | |
1b8455b7 | 122 | int ctf_convert_index_timestamp(struct bt_trace_descriptor *tdp); |
fc93b2bd | 123 | |
1ae19169 MD |
124 | static |
125 | rw_dispatch read_dispatch_table[] = { | |
d11e9c49 MD |
126 | [ CTF_TYPE_INTEGER ] = ctf_integer_read, |
127 | [ CTF_TYPE_FLOAT ] = ctf_float_read, | |
128 | [ CTF_TYPE_ENUM ] = ctf_enum_read, | |
129 | [ CTF_TYPE_STRING ] = ctf_string_read, | |
130 | [ CTF_TYPE_STRUCT ] = ctf_struct_rw, | |
131 | [ CTF_TYPE_VARIANT ] = ctf_variant_rw, | |
81dee1bb MD |
132 | [ CTF_TYPE_ARRAY ] = ctf_array_read, |
133 | [ CTF_TYPE_SEQUENCE ] = ctf_sequence_read, | |
d11e9c49 MD |
134 | }; |
135 | ||
1ae19169 MD |
136 | static |
137 | rw_dispatch write_dispatch_table[] = { | |
d11e9c49 MD |
138 | [ CTF_TYPE_INTEGER ] = ctf_integer_write, |
139 | [ CTF_TYPE_FLOAT ] = ctf_float_write, | |
140 | [ CTF_TYPE_ENUM ] = ctf_enum_write, | |
141 | [ CTF_TYPE_STRING ] = ctf_string_write, | |
142 | [ CTF_TYPE_STRUCT ] = ctf_struct_rw, | |
143 | [ CTF_TYPE_VARIANT ] = ctf_variant_rw, | |
81dee1bb MD |
144 | [ CTF_TYPE_ARRAY ] = ctf_array_write, |
145 | [ CTF_TYPE_SEQUENCE ] = ctf_sequence_write, | |
d11e9c49 MD |
146 | }; |
147 | ||
1ae19169 | 148 | static |
37b99bdb | 149 | struct bt_format ctf_format = { |
bbefb8dd | 150 | .open_trace = ctf_open_trace, |
f571dfb1 | 151 | .open_mmap_trace = ctf_open_mmap_trace, |
bbefb8dd | 152 | .close_trace = ctf_close_trace, |
98a04903 JD |
153 | .set_context = ctf_set_context, |
154 | .set_handle = ctf_set_handle, | |
30c276af JD |
155 | .timestamp_begin = ctf_timestamp_begin, |
156 | .timestamp_end = ctf_timestamp_end, | |
03798a93 | 157 | .convert_index_timestamp = ctf_convert_index_timestamp, |
fc93b2bd MD |
158 | }; |
159 | ||
30c276af | 160 | static |
1b8455b7 | 161 | uint64_t ctf_timestamp_begin(struct bt_trace_descriptor *descriptor, |
03798a93 | 162 | struct bt_trace_handle *handle, enum bt_clock_type type) |
30c276af JD |
163 | { |
164 | struct ctf_trace *tin; | |
165 | uint64_t begin = ULLONG_MAX; | |
166 | int i, j; | |
167 | ||
168 | tin = container_of(descriptor, struct ctf_trace, parent); | |
169 | ||
170 | if (!tin) | |
171 | goto error; | |
172 | ||
173 | /* for each stream_class */ | |
174 | for (i = 0; i < tin->streams->len; i++) { | |
175 | struct ctf_stream_declaration *stream_class; | |
176 | ||
177 | stream_class = g_ptr_array_index(tin->streams, i); | |
1b01ffc2 MD |
178 | if (!stream_class) |
179 | continue; | |
30c276af JD |
180 | /* for each file_stream */ |
181 | for (j = 0; j < stream_class->streams->len; j++) { | |
182 | struct ctf_stream_definition *stream; | |
183 | struct ctf_file_stream *cfs; | |
184 | struct ctf_stream_pos *stream_pos; | |
185 | struct packet_index *index; | |
186 | ||
187 | stream = g_ptr_array_index(stream_class->streams, j); | |
188 | cfs = container_of(stream, struct ctf_file_stream, | |
189 | parent); | |
190 | stream_pos = &cfs->pos; | |
191 | ||
992e8cc0 | 192 | if (!stream_pos->packet_index) |
03798a93 JD |
193 | goto error; |
194 | ||
992e8cc0 | 195 | if (stream_pos->packet_index->len <= 0) |
afe9cd4a JD |
196 | continue; |
197 | ||
992e8cc0 MD |
198 | index = &g_array_index(stream_pos->packet_index, |
199 | struct packet_index, | |
200 | stream_pos->packet_index->len - 1); | |
03798a93 | 201 | if (type == BT_CLOCK_REAL) { |
992e8cc0 MD |
202 | if (index->ts_real.timestamp_begin < begin) |
203 | begin = index->ts_real.timestamp_begin; | |
03798a93 | 204 | } else if (type == BT_CLOCK_CYCLES) { |
992e8cc0 MD |
205 | if (index->ts_cycles.timestamp_begin < begin) |
206 | begin = index->ts_cycles.timestamp_begin; | |
03798a93 JD |
207 | } else { |
208 | goto error; | |
209 | } | |
30c276af JD |
210 | } |
211 | } | |
212 | ||
213 | return begin; | |
214 | ||
215 | error: | |
216 | return -1ULL; | |
217 | } | |
218 | ||
219 | static | |
1b8455b7 | 220 | uint64_t ctf_timestamp_end(struct bt_trace_descriptor *descriptor, |
03798a93 | 221 | struct bt_trace_handle *handle, enum bt_clock_type type) |
30c276af JD |
222 | { |
223 | struct ctf_trace *tin; | |
224 | uint64_t end = 0; | |
225 | int i, j; | |
226 | ||
227 | tin = container_of(descriptor, struct ctf_trace, parent); | |
228 | ||
229 | if (!tin) | |
230 | goto error; | |
231 | ||
232 | /* for each stream_class */ | |
233 | for (i = 0; i < tin->streams->len; i++) { | |
234 | struct ctf_stream_declaration *stream_class; | |
235 | ||
236 | stream_class = g_ptr_array_index(tin->streams, i); | |
1b01ffc2 MD |
237 | if (!stream_class) |
238 | continue; | |
30c276af JD |
239 | /* for each file_stream */ |
240 | for (j = 0; j < stream_class->streams->len; j++) { | |
241 | struct ctf_stream_definition *stream; | |
242 | struct ctf_file_stream *cfs; | |
243 | struct ctf_stream_pos *stream_pos; | |
244 | struct packet_index *index; | |
245 | ||
246 | stream = g_ptr_array_index(stream_class->streams, j); | |
247 | cfs = container_of(stream, struct ctf_file_stream, | |
248 | parent); | |
249 | stream_pos = &cfs->pos; | |
250 | ||
992e8cc0 | 251 | if (!stream_pos->packet_index) |
03798a93 JD |
252 | goto error; |
253 | ||
992e8cc0 | 254 | if (stream_pos->packet_index->len <= 0) |
afe9cd4a JD |
255 | continue; |
256 | ||
992e8cc0 MD |
257 | index = &g_array_index(stream_pos->packet_index, |
258 | struct packet_index, | |
259 | stream_pos->packet_index->len - 1); | |
03798a93 | 260 | if (type == BT_CLOCK_REAL) { |
992e8cc0 MD |
261 | if (index->ts_real.timestamp_end > end) |
262 | end = index->ts_real.timestamp_end; | |
03798a93 | 263 | } else if (type == BT_CLOCK_CYCLES) { |
992e8cc0 MD |
264 | if (index->ts_cycles.timestamp_end > end) |
265 | end = index->ts_cycles.timestamp_end; | |
03798a93 JD |
266 | } else { |
267 | goto error; | |
268 | } | |
30c276af JD |
269 | } |
270 | } | |
271 | ||
272 | return end; | |
273 | ||
274 | error: | |
275 | return -1ULL; | |
276 | } | |
277 | ||
25ccc85b | 278 | /* |
03798a93 | 279 | * Update stream current timestamp |
25ccc85b | 280 | */ |
2b9a764d | 281 | static |
9e88d150 | 282 | void ctf_update_timestamp(struct ctf_stream_definition *stream, |
2b9a764d MD |
283 | struct definition_integer *integer_definition) |
284 | { | |
285 | struct declaration_integer *integer_declaration = | |
286 | integer_definition->declaration; | |
287 | uint64_t oldval, newval, updateval; | |
288 | ||
7f3f572b | 289 | if (unlikely(integer_declaration->len == 64)) { |
03798a93 | 290 | stream->cycles_timestamp = integer_definition->value._unsigned; |
03798a93 JD |
291 | stream->real_timestamp = ctf_get_real_timestamp(stream, |
292 | stream->cycles_timestamp); | |
2b9a764d MD |
293 | return; |
294 | } | |
295 | /* keep low bits */ | |
03798a93 | 296 | oldval = stream->cycles_timestamp; |
2b9a764d MD |
297 | oldval &= (1ULL << integer_declaration->len) - 1; |
298 | newval = integer_definition->value._unsigned; | |
299 | /* Test for overflow by comparing low bits */ | |
300 | if (newval < oldval) | |
301 | newval += 1ULL << integer_declaration->len; | |
302 | /* updateval contains old high bits, and new low bits (sum) */ | |
03798a93 | 303 | updateval = stream->cycles_timestamp; |
2b9a764d MD |
304 | updateval &= ~((1ULL << integer_declaration->len) - 1); |
305 | updateval += newval; | |
03798a93 JD |
306 | stream->cycles_timestamp = updateval; |
307 | ||
308 | /* convert to real timestamp */ | |
03798a93 JD |
309 | stream->real_timestamp = ctf_get_real_timestamp(stream, |
310 | stream->cycles_timestamp); | |
2b9a764d MD |
311 | } |
312 | ||
25ccc85b MD |
313 | /* |
314 | * Print timestamp, rescaling clock frequency to nanoseconds and | |
315 | * applying offsets as needed (unix time). | |
316 | */ | |
2e937fb4 | 317 | static |
03798a93 | 318 | void ctf_print_timestamp_real(FILE *fp, |
9e88d150 | 319 | struct ctf_stream_definition *stream, |
7d97fad9 MD |
320 | uint64_t timestamp) |
321 | { | |
322 | uint64_t ts_sec = 0, ts_nsec; | |
7d97fad9 | 323 | |
03798a93 | 324 | ts_nsec = timestamp; |
7d97fad9 | 325 | |
65923160 IJ |
326 | /* Add command-line offset in ns*/ |
327 | ts_nsec += opt_clock_offset_ns; | |
328 | ||
c34ea0fa | 329 | /* Add command-line offset */ |
7d97fad9 MD |
330 | ts_sec += opt_clock_offset; |
331 | ||
332 | ts_sec += ts_nsec / NSEC_PER_SEC; | |
333 | ts_nsec = ts_nsec % NSEC_PER_SEC; | |
334 | ||
335 | if (!opt_clock_seconds) { | |
336 | struct tm tm; | |
337 | time_t time_s = (time_t) ts_sec; | |
338 | ||
339 | if (!opt_clock_gmt) { | |
340 | struct tm *res; | |
341 | ||
342 | res = localtime_r(&time_s, &tm); | |
343 | if (!res) { | |
344 | fprintf(stderr, "[warning] Unable to get localtime.\n"); | |
345 | goto seconds; | |
346 | } | |
347 | } else { | |
348 | struct tm *res; | |
349 | ||
350 | res = gmtime_r(&time_s, &tm); | |
351 | if (!res) { | |
352 | fprintf(stderr, "[warning] Unable to get gmtime.\n"); | |
353 | goto seconds; | |
354 | } | |
355 | } | |
356 | if (opt_clock_date) { | |
357 | char timestr[26]; | |
358 | size_t res; | |
359 | ||
360 | /* Print date and time */ | |
361 | res = strftime(timestr, sizeof(timestr), | |
362 | "%F ", &tm); | |
363 | if (!res) { | |
364 | fprintf(stderr, "[warning] Unable to print ascii time.\n"); | |
365 | goto seconds; | |
366 | } | |
367 | fprintf(fp, "%s", timestr); | |
368 | } | |
369 | /* Print time in HH:MM:SS.ns */ | |
370 | fprintf(fp, "%02d:%02d:%02d.%09" PRIu64, | |
371 | tm.tm_hour, tm.tm_min, tm.tm_sec, ts_nsec); | |
372 | goto end; | |
373 | } | |
374 | seconds: | |
375 | fprintf(fp, "%3" PRIu64 ".%09" PRIu64, | |
376 | ts_sec, ts_nsec); | |
377 | ||
378 | end: | |
379 | return; | |
380 | } | |
381 | ||
03798a93 JD |
382 | /* |
383 | * Print timestamp, in cycles | |
384 | */ | |
2e937fb4 | 385 | static |
03798a93 JD |
386 | void ctf_print_timestamp_cycles(FILE *fp, |
387 | struct ctf_stream_definition *stream, | |
388 | uint64_t timestamp) | |
389 | { | |
390 | fprintf(fp, "%020" PRIu64, timestamp); | |
391 | } | |
392 | ||
393 | void ctf_print_timestamp(FILE *fp, | |
394 | struct ctf_stream_definition *stream, | |
395 | uint64_t timestamp) | |
396 | { | |
397 | if (opt_clock_cycles) { | |
398 | ctf_print_timestamp_cycles(fp, stream, timestamp); | |
399 | } else { | |
400 | ctf_print_timestamp_real(fp, stream, timestamp); | |
401 | } | |
402 | } | |
403 | ||
87148dc7 MD |
404 | static |
405 | void print_uuid(FILE *fp, unsigned char *uuid) | |
406 | { | |
407 | int i; | |
408 | ||
409 | for (i = 0; i < BABELTRACE_UUID_LEN; i++) | |
410 | fprintf(fp, "%x", (unsigned int) uuid[i]); | |
411 | } | |
412 | ||
2654fe9b MD |
413 | /* |
414 | * Discarded events can be either: | |
415 | * - discarded after end of previous buffer due to buffer full: | |
416 | * happened within range: [ prev_timestamp_end, timestamp_begin ] | |
417 | * - discarded within current buffer due to either event too large or | |
418 | * nested wrap-around: | |
419 | * happened within range: [ timestamp_begin, timestamp_end ] | |
420 | * | |
421 | * Given we have discarded counters of those two types merged into the | |
422 | * events_discarded counter, we need to use the union of those ranges: | |
423 | * [ prev_timestamp_end, timestamp_end ] | |
2328c2cd JD |
424 | * |
425 | * Lost packets occur if the tracer overwrote some subbuffer(s) before the | |
426 | * consumer had time to extract them. We keep track of those gaps with the | |
427 | * packet sequence number in each packet. | |
2654fe9b MD |
428 | */ |
429 | static | |
2328c2cd | 430 | void ctf_print_discarded_lost(FILE *fp, struct ctf_stream_definition *stream) |
87148dc7 | 431 | { |
2328c2cd JD |
432 | if ((!stream->events_discarded && !stream->packets_lost) || |
433 | !babeltrace_ctf_console_output) { | |
2654fe9b MD |
434 | return; |
435 | } | |
436 | fflush(stdout); | |
2328c2cd JD |
437 | if (stream->events_discarded) { |
438 | fprintf(fp, "[warning] Tracer discarded %" PRIu64 " events between [", | |
439 | stream->events_discarded); | |
440 | } else if (stream->packets_lost) { | |
441 | fprintf(fp, "[warning] Tracer lost %" PRIu64 " trace packets between [", | |
442 | stream->packets_lost); | |
443 | } | |
87148dc7 MD |
444 | if (opt_clock_cycles) { |
445 | ctf_print_timestamp(fp, stream, | |
2654fe9b | 446 | stream->prev.cycles.end); |
87148dc7 MD |
447 | fprintf(fp, "] and ["); |
448 | ctf_print_timestamp(fp, stream, | |
2654fe9b | 449 | stream->current.cycles.end); |
87148dc7 MD |
450 | } else { |
451 | ctf_print_timestamp(fp, stream, | |
2654fe9b | 452 | stream->prev.real.end); |
87148dc7 MD |
453 | fprintf(fp, "] and ["); |
454 | ctf_print_timestamp(fp, stream, | |
2654fe9b | 455 | stream->current.real.end); |
87148dc7 MD |
456 | } |
457 | fprintf(fp, "] in trace UUID "); | |
458 | print_uuid(fp, stream->stream_class->trace->uuid); | |
caf929fa | 459 | if (stream->stream_class->trace->parent.path[0]) |
87148dc7 | 460 | fprintf(fp, ", at path: \"%s\"", |
caf929fa | 461 | stream->stream_class->trace->parent.path); |
87148dc7 MD |
462 | |
463 | fprintf(fp, ", within stream id %" PRIu64, stream->stream_id); | |
464 | if (stream->path[0]) | |
465 | fprintf(fp, ", at relative path: \"%s\"", stream->path); | |
466 | fprintf(fp, ". "); | |
467 | fprintf(fp, "You should consider recording a new trace with larger " | |
468 | "buffers or with fewer events enabled.\n"); | |
469 | fflush(fp); | |
470 | } | |
471 | ||
31262354 | 472 | static |
1cf393f6 | 473 | int ctf_read_event(struct bt_stream_pos *ppos, struct ctf_stream_definition *stream) |
31262354 MD |
474 | { |
475 | struct ctf_stream_pos *pos = | |
476 | container_of(ppos, struct ctf_stream_pos, parent); | |
f380e105 | 477 | struct ctf_stream_declaration *stream_class = stream->stream_class; |
c716f83b | 478 | struct ctf_event_definition *event; |
31262354 | 479 | uint64_t id = 0; |
31262354 MD |
480 | int ret; |
481 | ||
3abe83c7 MD |
482 | /* We need to check for EOF here for empty files. */ |
483 | if (unlikely(pos->offset == EOF)) | |
484 | return EOF; | |
485 | ||
5f643ed7 MD |
486 | ctf_pos_get_event(pos); |
487 | ||
90fcbacc JD |
488 | /* save the current position as a restore point */ |
489 | pos->last_offset = pos->offset; | |
90fcbacc | 490 | |
3abe83c7 MD |
491 | /* |
492 | * This is the EOF check after we've advanced the position in | |
493 | * ctf_pos_get_event. | |
494 | */ | |
7f3f572b | 495 | if (unlikely(pos->offset == EOF)) |
31262354 | 496 | return EOF; |
8793d9f8 | 497 | |
500634be JD |
498 | /* Stream is inactive for now (live reading). */ |
499 | if (unlikely(pos->content_size == 0)) | |
8793d9f8 | 500 | return EAGAIN; |
500634be JD |
501 | |
502 | /* | |
503 | * Packet seeked to by ctf_pos_get_event() only contains | |
504 | * headers, no event. Consider stream as inactive (live | |
505 | * reading). | |
506 | */ | |
507 | if (unlikely(pos->data_offset == pos->content_size)) | |
a5260047 JD |
508 | return EAGAIN; |
509 | ||
5f643ed7 | 510 | assert(pos->offset < pos->content_size); |
31262354 MD |
511 | |
512 | /* Read event header */ | |
7f3f572b | 513 | if (likely(stream->stream_event_header)) { |
a35173fe | 514 | struct definition_integer *integer_definition; |
0d69b916 | 515 | struct bt_definition *variant; |
a35173fe | 516 | |
e28d4618 | 517 | ret = generic_rw(ppos, &stream->stream_event_header->p); |
7f3f572b | 518 | if (unlikely(ret)) |
31262354 MD |
519 | goto error; |
520 | /* lookup event id */ | |
bf78e2cf | 521 | integer_definition = bt_lookup_integer(&stream->stream_event_header->p, "id", FALSE); |
a35173fe MD |
522 | if (integer_definition) { |
523 | id = integer_definition->value._unsigned; | |
524 | } else { | |
525 | struct definition_enum *enum_definition; | |
526 | ||
9e3274b0 | 527 | enum_definition = bt_lookup_enum(&stream->stream_event_header->p, "id", FALSE); |
a35173fe MD |
528 | if (enum_definition) { |
529 | id = enum_definition->integer->value._unsigned; | |
530 | } | |
31262354 | 531 | } |
764af3f4 | 532 | |
ebae302b | 533 | variant = bt_lookup_variant(&stream->stream_event_header->p, "v"); |
ccdb988e | 534 | if (variant) { |
bf78e2cf | 535 | integer_definition = bt_lookup_integer(variant, "id", FALSE); |
ccdb988e MD |
536 | if (integer_definition) { |
537 | id = integer_definition->value._unsigned; | |
538 | } | |
539 | } | |
c87a8eb2 | 540 | stream->event_id = id; |
ccdb988e | 541 | |
764af3f4 | 542 | /* lookup timestamp */ |
5e2eb0ae | 543 | stream->has_timestamp = 0; |
bf78e2cf | 544 | integer_definition = bt_lookup_integer(&stream->stream_event_header->p, "timestamp", FALSE); |
a35173fe | 545 | if (integer_definition) { |
2b9a764d | 546 | ctf_update_timestamp(stream, integer_definition); |
5e2eb0ae | 547 | stream->has_timestamp = 1; |
a35173fe | 548 | } else { |
ccdb988e | 549 | if (variant) { |
bf78e2cf | 550 | integer_definition = bt_lookup_integer(variant, "timestamp", FALSE); |
a35173fe | 551 | if (integer_definition) { |
2b9a764d | 552 | ctf_update_timestamp(stream, integer_definition); |
5e2eb0ae | 553 | stream->has_timestamp = 1; |
a35173fe MD |
554 | } |
555 | } | |
764af3f4 | 556 | } |
31262354 MD |
557 | } |
558 | ||
559 | /* Read stream-declared event context */ | |
e28d4618 MD |
560 | if (stream->stream_event_context) { |
561 | ret = generic_rw(ppos, &stream->stream_event_context->p); | |
31262354 MD |
562 | if (ret) |
563 | goto error; | |
564 | } | |
565 | ||
7f3f572b | 566 | if (unlikely(id >= stream_class->events_by_id->len)) { |
3394d22e | 567 | fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id); |
31262354 MD |
568 | return -EINVAL; |
569 | } | |
e28d4618 | 570 | event = g_ptr_array_index(stream->events_by_id, id); |
7f3f572b | 571 | if (unlikely(!event)) { |
3394d22e | 572 | fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id); |
31262354 MD |
573 | return -EINVAL; |
574 | } | |
575 | ||
576 | /* Read event-declared event context */ | |
e28d4618 MD |
577 | if (event->event_context) { |
578 | ret = generic_rw(ppos, &event->event_context->p); | |
31262354 MD |
579 | if (ret) |
580 | goto error; | |
581 | } | |
582 | ||
583 | /* Read event payload */ | |
7f3f572b | 584 | if (likely(event->event_fields)) { |
e28d4618 | 585 | ret = generic_rw(ppos, &event->event_fields->p); |
31262354 MD |
586 | if (ret) |
587 | goto error; | |
588 | } | |
589 | ||
28f35f0a MD |
590 | if (pos->last_offset == pos->offset) { |
591 | fprintf(stderr, "[error] Invalid 0 byte event encountered.\n"); | |
592 | return -EINVAL; | |
593 | } | |
594 | ||
31262354 MD |
595 | return 0; |
596 | ||
597 | error: | |
64f5abe1 | 598 | 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 |
599 | return ret; |
600 | } | |
601 | ||
602 | static | |
1cf393f6 | 603 | int ctf_write_event(struct bt_stream_pos *pos, struct ctf_stream_definition *stream) |
31262354 | 604 | { |
f380e105 | 605 | struct ctf_stream_declaration *stream_class = stream->stream_class; |
c716f83b | 606 | struct ctf_event_definition *event; |
c87a8eb2 | 607 | uint64_t id; |
31262354 MD |
608 | int ret; |
609 | ||
c87a8eb2 MD |
610 | id = stream->event_id; |
611 | ||
31262354 | 612 | /* print event header */ |
7f3f572b | 613 | if (likely(stream->stream_event_header)) { |
e28d4618 | 614 | ret = generic_rw(pos, &stream->stream_event_header->p); |
31262354 MD |
615 | if (ret) |
616 | goto error; | |
617 | } | |
618 | ||
619 | /* print stream-declared event context */ | |
e28d4618 MD |
620 | if (stream->stream_event_context) { |
621 | ret = generic_rw(pos, &stream->stream_event_context->p); | |
31262354 MD |
622 | if (ret) |
623 | goto error; | |
624 | } | |
625 | ||
7f3f572b | 626 | if (unlikely(id >= stream_class->events_by_id->len)) { |
3394d22e | 627 | fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id); |
31262354 MD |
628 | return -EINVAL; |
629 | } | |
e28d4618 | 630 | event = g_ptr_array_index(stream->events_by_id, id); |
7f3f572b | 631 | if (unlikely(!event)) { |
3394d22e | 632 | fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id); |
31262354 MD |
633 | return -EINVAL; |
634 | } | |
635 | ||
636 | /* print event-declared event context */ | |
e28d4618 MD |
637 | if (event->event_context) { |
638 | ret = generic_rw(pos, &event->event_context->p); | |
31262354 MD |
639 | if (ret) |
640 | goto error; | |
641 | } | |
642 | ||
643 | /* Read and print event payload */ | |
7f3f572b | 644 | if (likely(event->event_fields)) { |
e28d4618 | 645 | ret = generic_rw(pos, &event->event_fields->p); |
31262354 MD |
646 | if (ret) |
647 | goto error; | |
648 | } | |
649 | ||
650 | return 0; | |
651 | ||
652 | error: | |
3394d22e | 653 | 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 |
654 | return ret; |
655 | } | |
656 | ||
e69dd258 JD |
657 | /* |
658 | * One side-effect of this function is to unmap pos mmap base if one is | |
659 | * mapped. | |
660 | */ | |
661 | static | |
662 | int find_data_offset(struct ctf_stream_pos *pos, | |
663 | struct ctf_file_stream *file_stream, | |
664 | struct packet_index *packet_index) | |
665 | { | |
666 | uint64_t packet_map_len = DEFAULT_HEADER_LEN, tmp_map_len; | |
667 | struct stat filestats; | |
668 | size_t filesize; | |
669 | int ret; | |
670 | ||
671 | pos = &file_stream->pos; | |
672 | ||
673 | ret = fstat(pos->fd, &filestats); | |
674 | if (ret < 0) | |
675 | return ret; | |
676 | filesize = filestats.st_size; | |
677 | ||
678 | /* Deal with empty files */ | |
679 | if (!filesize) { | |
680 | return 0; | |
681 | } | |
682 | ||
683 | begin: | |
684 | if (filesize - pos->mmap_offset < (packet_map_len >> LOG2_CHAR_BIT)) { | |
685 | packet_map_len = (filesize - pos->mmap_offset) << LOG2_CHAR_BIT; | |
686 | } | |
687 | ||
688 | if (pos->base_mma) { | |
689 | /* unmap old base */ | |
690 | ret = munmap_align(pos->base_mma); | |
691 | if (ret) { | |
692 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", | |
693 | strerror(errno)); | |
694 | return ret; | |
695 | } | |
696 | pos->base_mma = NULL; | |
697 | } | |
698 | /* map new base. Need mapping length from header. */ | |
699 | pos->base_mma = mmap_align(packet_map_len >> LOG2_CHAR_BIT, PROT_READ, | |
700 | MAP_PRIVATE, pos->fd, pos->mmap_offset); | |
701 | assert(pos->base_mma != MAP_FAILED); | |
702 | ||
703 | pos->content_size = packet_map_len; | |
704 | pos->packet_size = packet_map_len; | |
705 | pos->offset = 0; /* Position of the packet header */ | |
706 | ||
707 | /* update trace_packet_header and stream_packet_context */ | |
708 | if (pos->prot == PROT_READ && file_stream->parent.trace_packet_header) { | |
709 | /* Read packet header */ | |
710 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); | |
711 | if (ret) { | |
712 | if (ret == -EFAULT) | |
713 | goto retry; | |
714 | } | |
715 | } | |
716 | if (pos->prot == PROT_READ && file_stream->parent.stream_packet_context) { | |
717 | /* Read packet context */ | |
718 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); | |
719 | if (ret) { | |
720 | if (ret == -EFAULT) | |
721 | goto retry; | |
722 | } | |
723 | } | |
724 | packet_index->data_offset = pos->offset; | |
725 | ||
726 | /* unmap old base */ | |
727 | ret = munmap_align(pos->base_mma); | |
728 | if (ret) { | |
729 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", | |
730 | strerror(errno)); | |
731 | return ret; | |
732 | } | |
733 | pos->base_mma = NULL; | |
734 | ||
735 | return 0; | |
736 | ||
737 | /* Retry with larger mapping */ | |
738 | retry: | |
739 | if (packet_map_len == ((filesize - pos->mmap_offset) << LOG2_CHAR_BIT)) { | |
740 | /* | |
741 | * Reached EOF, but still expecting header/context data. | |
742 | */ | |
743 | fprintf(stderr, "[error] Reached end of file, but still expecting header or context fields.\n"); | |
744 | return -EFAULT; | |
745 | } | |
746 | /* Double the mapping len, and retry */ | |
747 | tmp_map_len = packet_map_len << 1; | |
748 | if (tmp_map_len >> 1 != packet_map_len) { | |
749 | /* Overflow */ | |
750 | fprintf(stderr, "[error] Packet mapping length overflow\n"); | |
751 | return -EFAULT; | |
752 | } | |
753 | packet_map_len = tmp_map_len; | |
754 | goto begin; | |
755 | } | |
756 | ||
757 | ||
ca334c72 MD |
758 | int ctf_init_pos(struct ctf_stream_pos *pos, struct bt_trace_descriptor *trace, |
759 | int fd, int open_flags) | |
8c572eba MD |
760 | { |
761 | pos->fd = fd; | |
37fcdd19 | 762 | if (fd >= 0) { |
992e8cc0 | 763 | pos->packet_index = g_array_new(FALSE, TRUE, |
37fcdd19 JD |
764 | sizeof(struct packet_index)); |
765 | } else { | |
992e8cc0 | 766 | pos->packet_index = NULL; |
37fcdd19 | 767 | } |
8563e754 MD |
768 | switch (open_flags & O_ACCMODE) { |
769 | case O_RDONLY: | |
770 | pos->prot = PROT_READ; | |
771 | pos->flags = MAP_PRIVATE; | |
772 | pos->parent.rw_table = read_dispatch_table; | |
31262354 | 773 | pos->parent.event_cb = ctf_read_event; |
ca334c72 | 774 | pos->parent.trace = trace; |
8563e754 | 775 | break; |
8563e754 | 776 | case O_RDWR: |
fcf10417 | 777 | pos->prot = PROT_READ | PROT_WRITE; |
8563e754 MD |
778 | pos->flags = MAP_SHARED; |
779 | pos->parent.rw_table = write_dispatch_table; | |
31262354 | 780 | pos->parent.event_cb = ctf_write_event; |
ca334c72 | 781 | pos->parent.trace = trace; |
8563e754 | 782 | if (fd >= 0) |
06789ffd | 783 | ctf_packet_seek(&pos->parent, 0, SEEK_SET); /* position for write */ |
8563e754 MD |
784 | break; |
785 | default: | |
786 | assert(0); | |
8c572eba | 787 | } |
f824ae04 | 788 | return 0; |
8c572eba MD |
789 | } |
790 | ||
f824ae04 | 791 | int ctf_fini_pos(struct ctf_stream_pos *pos) |
8c572eba | 792 | { |
fcf10417 | 793 | if ((pos->prot & PROT_WRITE) && pos->content_size_loc) |
8c572eba | 794 | *pos->content_size_loc = pos->offset; |
aee35fcc | 795 | if (pos->base_mma) { |
08c82b90 MD |
796 | int ret; |
797 | ||
8c572eba | 798 | /* unmap old base */ |
aee35fcc | 799 | ret = munmap_align(pos->base_mma); |
8c572eba | 800 | if (ret) { |
3394d22e | 801 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", |
8c572eba | 802 | strerror(errno)); |
f824ae04 | 803 | return -1; |
8c572eba MD |
804 | } |
805 | } | |
992e8cc0 MD |
806 | if (pos->packet_index) |
807 | (void) g_array_free(pos->packet_index, TRUE); | |
f824ae04 | 808 | return 0; |
8c572eba MD |
809 | } |
810 | ||
f1f52630 MD |
811 | void ctf_update_current_packet_index(struct ctf_stream_definition *stream, |
812 | struct packet_index *prev_index, | |
813 | struct packet_index *cur_index) | |
814 | { | |
815 | uint64_t events_discarded_diff; | |
2328c2cd | 816 | uint64_t packets_lost_diff = 0; |
f1f52630 MD |
817 | |
818 | /* Update packet index time information */ | |
2654fe9b MD |
819 | |
820 | /* Current packet begin/end */ | |
821 | stream->current.real.begin = | |
822 | cur_index->ts_real.timestamp_begin; | |
823 | stream->current.cycles.begin = | |
f1f52630 | 824 | cur_index->ts_cycles.timestamp_begin; |
2654fe9b | 825 | stream->current.real.end = |
f1f52630 | 826 | cur_index->ts_real.timestamp_end; |
2654fe9b MD |
827 | stream->current.cycles.end = |
828 | cur_index->ts_cycles.timestamp_end; | |
f1f52630 MD |
829 | |
830 | /* Update packet index discarded event information */ | |
831 | events_discarded_diff = cur_index->events_discarded; | |
832 | if (prev_index) { | |
2654fe9b MD |
833 | /* Previous packet begin/end */ |
834 | stream->prev.cycles.begin = | |
835 | prev_index->ts_cycles.timestamp_begin; | |
836 | stream->prev.real.begin = | |
837 | prev_index->ts_real.timestamp_begin; | |
838 | stream->prev.cycles.end = | |
839 | prev_index->ts_cycles.timestamp_end; | |
840 | stream->prev.real.end = | |
841 | prev_index->ts_real.timestamp_end; | |
842 | ||
f1f52630 | 843 | events_discarded_diff -= prev_index->events_discarded; |
2328c2cd JD |
844 | /* packet_seq_num stays at 0 if not produced by the tracer */ |
845 | if (cur_index->packet_seq_num) { | |
846 | packets_lost_diff = cur_index->packet_seq_num - | |
847 | prev_index->packet_seq_num - 1; | |
848 | } | |
f1f52630 MD |
849 | /* |
850 | * Deal with 32-bit wrap-around if the tracer provided a | |
851 | * 32-bit field. | |
852 | */ | |
853 | if (prev_index->events_discarded_len == 32) { | |
854 | events_discarded_diff = (uint32_t) events_discarded_diff; | |
855 | } | |
2654fe9b MD |
856 | } else { |
857 | /* | |
858 | * First packet: use current packet info as limits for | |
859 | * previous packet. | |
860 | */ | |
861 | stream->prev.cycles.begin = | |
862 | stream->prev.cycles.end = | |
863 | stream->current.cycles.begin; | |
864 | stream->prev.real.begin = | |
865 | stream->prev.real.end = | |
866 | stream->current.real.begin; | |
f1f52630 MD |
867 | } |
868 | stream->events_discarded = events_discarded_diff; | |
2328c2cd | 869 | stream->packets_lost = packets_lost_diff; |
f1f52630 MD |
870 | } |
871 | ||
37ea109a JD |
872 | /* |
873 | * Find the timerange where all the streams in the trace are active | |
874 | * simultaneously. | |
875 | * | |
876 | * Return 0 and update begin/end if necessary on success, return 1 for | |
877 | * empty streams and return a negative value on error. | |
878 | */ | |
879 | static | |
880 | int ctf_intersect_trace(struct bt_trace_descriptor *td_read, | |
881 | uint64_t *begin, uint64_t *end) | |
882 | { | |
883 | struct ctf_trace *tin; | |
884 | int stream_id, ret = 0; | |
885 | ||
886 | tin = container_of(td_read, struct ctf_trace, parent); | |
887 | ||
888 | for (stream_id = 0; stream_id < tin->streams->len; | |
889 | stream_id++) { | |
890 | int filenr; | |
891 | struct ctf_stream_declaration *stream_class; | |
892 | ||
893 | stream_class = g_ptr_array_index(tin->streams, stream_id); | |
894 | if (!stream_class) { | |
895 | continue; | |
896 | } | |
897 | for (filenr = 0; filenr < stream_class->streams->len; filenr++) { | |
898 | struct ctf_file_stream *file_stream; | |
899 | struct ctf_stream_pos *stream_pos; | |
900 | struct packet_index *index; | |
901 | ||
902 | file_stream = g_ptr_array_index(stream_class->streams, | |
903 | filenr); | |
904 | if (!file_stream) { | |
905 | continue; | |
906 | } | |
907 | stream_pos = &file_stream->pos; | |
908 | if (!stream_pos->packet_index || | |
909 | stream_pos->packet_index->len <= 0) { | |
910 | ret = 1; | |
911 | goto end; | |
912 | } | |
913 | index = &g_array_index(stream_pos->packet_index, | |
914 | struct packet_index, 0); | |
915 | if (index->ts_real.timestamp_begin > *begin) { | |
916 | *begin = index->ts_real.timestamp_begin; | |
917 | } | |
918 | index = &g_array_index(stream_pos->packet_index, | |
919 | struct packet_index, | |
920 | stream_pos->packet_index->len - 1); | |
921 | if (index->ts_real.timestamp_end < *end) { | |
922 | *end = index->ts_real.timestamp_end; | |
923 | } | |
924 | } | |
925 | } | |
926 | ||
927 | end: | |
928 | return ret; | |
929 | } | |
930 | ||
931 | /* | |
932 | * Find the timerange where all streams in the trace collection are active | |
933 | * simultaneously. | |
934 | * | |
935 | * Return 0 on success. | |
936 | * Return 1 if no intersections are found. | |
937 | * Return a negative value on error. | |
938 | */ | |
939 | int ctf_find_packets_intersection(struct bt_context *ctx, | |
940 | uint64_t *ts_begin, uint64_t *ts_end) | |
941 | { | |
942 | int ret, i; | |
943 | ||
944 | if (!ctx || !ctx->tc || !ctx->tc->array) { | |
945 | ret = -EINVAL; | |
946 | goto end; | |
947 | } | |
948 | ||
949 | for (i = 0; i < ctx->tc->array->len; i++) { | |
950 | struct bt_trace_descriptor *td_read; | |
951 | ||
952 | td_read = g_ptr_array_index(ctx->tc->array, i); | |
953 | if (!td_read) { | |
954 | continue; | |
955 | } | |
956 | ret = ctf_intersect_trace(td_read, ts_begin, ts_end); | |
957 | if (ret) { | |
958 | goto end; | |
959 | } | |
960 | } | |
961 | if (*ts_end < *ts_begin) { | |
962 | ret = 1; | |
963 | } else { | |
964 | ret = 0; | |
965 | } | |
966 | end: | |
967 | return ret; | |
968 | } | |
969 | ||
20d0dcf9 MD |
970 | /* |
971 | * for SEEK_CUR: go to next packet. | |
34b8fff6 | 972 | * for SEEK_SET: go to packet numer (index). |
20d0dcf9 | 973 | */ |
1cf393f6 | 974 | void ctf_packet_seek(struct bt_stream_pos *stream_pos, size_t index, int whence) |
0f980a35 | 975 | { |
d6425aaf MD |
976 | struct ctf_stream_pos *pos = |
977 | container_of(stream_pos, struct ctf_stream_pos, parent); | |
75cc2c35 MD |
978 | struct ctf_file_stream *file_stream = |
979 | container_of(pos, struct ctf_file_stream, pos); | |
0f980a35 | 980 | int ret; |
2654fe9b | 981 | struct packet_index *packet_index, *prev_index; |
0f980a35 | 982 | |
5bfcad93 MD |
983 | switch (whence) { |
984 | case SEEK_CUR: | |
985 | case SEEK_SET: /* Fall-through */ | |
986 | break; /* OK */ | |
987 | default: | |
988 | assert(0); | |
989 | } | |
990 | ||
fcf10417 | 991 | if ((pos->prot & PROT_WRITE) && pos->content_size_loc) |
8c572eba | 992 | *pos->content_size_loc = pos->offset; |
0f980a35 | 993 | |
aee35fcc | 994 | if (pos->base_mma) { |
0f980a35 | 995 | /* unmap old base */ |
aee35fcc | 996 | ret = munmap_align(pos->base_mma); |
0f980a35 | 997 | if (ret) { |
3394d22e | 998 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", |
0f980a35 MD |
999 | strerror(errno)); |
1000 | assert(0); | |
1001 | } | |
aee35fcc | 1002 | pos->base_mma = NULL; |
0f980a35 MD |
1003 | } |
1004 | ||
8c572eba | 1005 | /* |
46322b33 | 1006 | * The caller should never ask for ctf_move_pos across packets, |
8c572eba MD |
1007 | * except to get exactly at the beginning of the next packet. |
1008 | */ | |
fcf10417 | 1009 | if (pos->prot & PROT_WRITE) { |
989c73bc MD |
1010 | switch (whence) { |
1011 | case SEEK_CUR: | |
1012 | /* The writer will add padding */ | |
e0a5b455 | 1013 | pos->mmap_offset += pos->packet_size / CHAR_BIT; |
989c73bc MD |
1014 | break; |
1015 | case SEEK_SET: | |
20d0dcf9 | 1016 | assert(index == 0); /* only seek supported for now */ |
989c73bc MD |
1017 | pos->cur_index = 0; |
1018 | break; | |
1019 | default: | |
1020 | assert(0); | |
1021 | } | |
8c572eba MD |
1022 | pos->content_size = -1U; /* Unknown at this point */ |
1023 | pos->packet_size = WRITE_PACKET_LEN; | |
118f5776 MD |
1024 | do { |
1025 | ret = bt_posix_fallocate(pos->fd, pos->mmap_offset, | |
1026 | pos->packet_size / CHAR_BIT); | |
1027 | } while (ret == EINTR); | |
1028 | assert(ret == 0); | |
847bf71a | 1029 | pos->offset = 0; |
8c572eba | 1030 | } else { |
5f643ed7 | 1031 | read_next_packet: |
847bf71a MD |
1032 | switch (whence) { |
1033 | case SEEK_CUR: | |
41e82e00 | 1034 | { |
7d97fad9 MD |
1035 | if (pos->offset == EOF) { |
1036 | return; | |
1037 | } | |
992e8cc0 | 1038 | assert(pos->cur_index < pos->packet_index->len); |
847bf71a | 1039 | /* The reader will expect us to skip padding */ |
8c572eba | 1040 | ++pos->cur_index; |
847bf71a | 1041 | break; |
41e82e00 | 1042 | } |
847bf71a | 1043 | case SEEK_SET: |
992e8cc0 | 1044 | if (index >= pos->packet_index->len) { |
c309df1c MD |
1045 | pos->offset = EOF; |
1046 | return; | |
1047 | } | |
20d0dcf9 | 1048 | pos->cur_index = index; |
847bf71a MD |
1049 | break; |
1050 | default: | |
1051 | assert(0); | |
1052 | } | |
2654fe9b | 1053 | |
0e1b84aa MD |
1054 | if (pos->cur_index >= pos->packet_index->len) { |
1055 | pos->offset = EOF; | |
1056 | return; | |
1057 | } | |
1058 | ||
2654fe9b MD |
1059 | packet_index = &g_array_index(pos->packet_index, |
1060 | struct packet_index, pos->cur_index); | |
1061 | if (pos->cur_index > 0) { | |
1062 | prev_index = &g_array_index(pos->packet_index, | |
1063 | struct packet_index, | |
1064 | pos->cur_index - 1); | |
1065 | } else { | |
1066 | prev_index = NULL; | |
1067 | } | |
1068 | ctf_update_current_packet_index(&file_stream->parent, | |
1069 | prev_index, packet_index); | |
1070 | ||
2654fe9b MD |
1071 | /* |
1072 | * We need to check if we are in trace read or called | |
1073 | * from packet indexing. In this last case, the | |
1074 | * collection is not there, so we cannot print the | |
1075 | * timestamps. | |
1076 | */ | |
1077 | if ((&file_stream->parent)->stream_class->trace->parent.collection) { | |
2328c2cd | 1078 | ctf_print_discarded_lost(stderr, &file_stream->parent); |
2654fe9b MD |
1079 | } |
1080 | ||
992e8cc0 | 1081 | packet_index = &g_array_index(pos->packet_index, |
03798a93 JD |
1082 | struct packet_index, |
1083 | pos->cur_index); | |
992e8cc0 | 1084 | file_stream->parent.cycles_timestamp = packet_index->ts_cycles.timestamp_begin; |
03798a93 | 1085 | |
992e8cc0 | 1086 | file_stream->parent.real_timestamp = packet_index->ts_real.timestamp_begin; |
8c572eba MD |
1087 | |
1088 | /* Lookup context/packet size in index */ | |
e69dd258 JD |
1089 | if (packet_index->data_offset == -1) { |
1090 | ret = find_data_offset(pos, file_stream, packet_index); | |
1091 | if (ret < 0) { | |
1092 | return; | |
1093 | } | |
1094 | } | |
20d0dcf9 MD |
1095 | pos->content_size = packet_index->content_size; |
1096 | pos->packet_size = packet_index->packet_size; | |
e69dd258 | 1097 | pos->mmap_offset = packet_index->offset; |
500634be JD |
1098 | pos->data_offset = packet_index->data_offset; |
1099 | if (pos->data_offset < packet_index->content_size) { | |
75cc2c35 | 1100 | pos->offset = 0; /* will read headers */ |
500634be | 1101 | } else if (pos->data_offset == packet_index->content_size) { |
5f643ed7 | 1102 | /* empty packet */ |
20d0dcf9 | 1103 | pos->offset = packet_index->data_offset; |
3abe83c7 | 1104 | whence = SEEK_CUR; |
5f643ed7 | 1105 | goto read_next_packet; |
7eda6fc7 | 1106 | } else { |
2b9a764d MD |
1107 | pos->offset = EOF; |
1108 | return; | |
1109 | } | |
8c572eba | 1110 | } |
0f980a35 | 1111 | /* map new base. Need mapping length from header. */ |
aee35fcc MD |
1112 | pos->base_mma = mmap_align(pos->packet_size / CHAR_BIT, pos->prot, |
1113 | pos->flags, pos->fd, pos->mmap_offset); | |
1114 | if (pos->base_mma == MAP_FAILED) { | |
3394d22e | 1115 | fprintf(stderr, "[error] mmap error %s.\n", |
847bf71a MD |
1116 | strerror(errno)); |
1117 | assert(0); | |
1118 | } | |
75cc2c35 MD |
1119 | |
1120 | /* update trace_packet_header and stream_packet_context */ | |
fcf10417 JG |
1121 | if (!(pos->prot & PROT_WRITE) && |
1122 | file_stream->parent.trace_packet_header) { | |
75cc2c35 | 1123 | /* Read packet header */ |
2d0bea29 | 1124 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); |
75cc2c35 MD |
1125 | assert(!ret); |
1126 | } | |
fcf10417 JG |
1127 | if (!(pos->prot & PROT_WRITE) && |
1128 | file_stream->parent.stream_packet_context) { | |
75cc2c35 | 1129 | /* Read packet context */ |
2d0bea29 | 1130 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); |
75cc2c35 MD |
1131 | assert(!ret); |
1132 | } | |
0f980a35 MD |
1133 | } |
1134 | ||
b4c19c1e MD |
1135 | static |
1136 | int packet_metadata(struct ctf_trace *td, FILE *fp) | |
1137 | { | |
1138 | uint32_t magic; | |
1139 | size_t len; | |
1140 | int ret = 0; | |
1141 | ||
1142 | len = fread(&magic, sizeof(magic), 1, fp); | |
a0fe7d97 | 1143 | if (len != 1) { |
b4c19c1e MD |
1144 | goto end; |
1145 | } | |
1146 | if (magic == TSDL_MAGIC) { | |
1147 | ret = 1; | |
1148 | td->byte_order = BYTE_ORDER; | |
0d336fdf | 1149 | CTF_TRACE_SET_FIELD(td, byte_order); |
b4c19c1e MD |
1150 | } else if (magic == GUINT32_SWAP_LE_BE(TSDL_MAGIC)) { |
1151 | ret = 1; | |
1152 | td->byte_order = (BYTE_ORDER == BIG_ENDIAN) ? | |
1153 | LITTLE_ENDIAN : BIG_ENDIAN; | |
0d336fdf | 1154 | CTF_TRACE_SET_FIELD(td, byte_order); |
b4c19c1e MD |
1155 | } |
1156 | end: | |
1157 | rewind(fp); | |
1158 | return ret; | |
1159 | } | |
1160 | ||
5c262147 MD |
1161 | /* |
1162 | * Returns 0 on success, -1 on error. | |
1163 | */ | |
1164 | static | |
1165 | int check_version(unsigned int major, unsigned int minor) | |
1166 | { | |
1167 | switch (major) { | |
1168 | case 1: | |
1169 | switch (minor) { | |
1170 | case 8: | |
1171 | return 0; | |
1172 | default: | |
1173 | goto warning; | |
1174 | } | |
1175 | default: | |
1176 | goto warning; | |
1177 | ||
1178 | } | |
1179 | ||
1180 | /* eventually return an error instead of warning */ | |
1181 | warning: | |
3394d22e | 1182 | fprintf(stderr, "[warning] Unsupported CTF specification version %u.%u. Trying anyway.\n", |
5c262147 MD |
1183 | major, minor); |
1184 | return 0; | |
1185 | } | |
1186 | ||
b4c19c1e | 1187 | static |
0c880b0a | 1188 | int ctf_trace_metadata_packet_read(struct ctf_trace *td, FILE *in, |
b4c19c1e MD |
1189 | FILE *out) |
1190 | { | |
1191 | struct metadata_packet_header header; | |
a0fe7d97 | 1192 | size_t readlen, writelen, toread; |
f8254867 | 1193 | char buf[4096 + 1]; /* + 1 for debug-mode \0 */ |
b4c19c1e MD |
1194 | int ret = 0; |
1195 | ||
a91a962e | 1196 | readlen = fread(&header, header_sizeof(header), 1, in); |
a0fe7d97 | 1197 | if (readlen < 1) |
b4c19c1e MD |
1198 | return -EINVAL; |
1199 | ||
1200 | if (td->byte_order != BYTE_ORDER) { | |
1201 | header.magic = GUINT32_SWAP_LE_BE(header.magic); | |
1202 | header.checksum = GUINT32_SWAP_LE_BE(header.checksum); | |
1203 | header.content_size = GUINT32_SWAP_LE_BE(header.content_size); | |
1204 | header.packet_size = GUINT32_SWAP_LE_BE(header.packet_size); | |
1205 | } | |
1206 | if (header.checksum) | |
3394d22e | 1207 | fprintf(stderr, "[warning] checksum verification not supported yet.\n"); |
b4c19c1e | 1208 | if (header.compression_scheme) { |
3394d22e | 1209 | fprintf(stderr, "[error] compression (%u) not supported yet.\n", |
b4c19c1e MD |
1210 | header.compression_scheme); |
1211 | return -EINVAL; | |
1212 | } | |
1213 | if (header.encryption_scheme) { | |
3394d22e | 1214 | fprintf(stderr, "[error] encryption (%u) not supported yet.\n", |
b4c19c1e MD |
1215 | header.encryption_scheme); |
1216 | return -EINVAL; | |
1217 | } | |
1218 | if (header.checksum_scheme) { | |
3394d22e | 1219 | fprintf(stderr, "[error] checksum (%u) not supported yet.\n", |
b4c19c1e MD |
1220 | header.checksum_scheme); |
1221 | return -EINVAL; | |
1222 | } | |
5c262147 MD |
1223 | if (check_version(header.major, header.minor) < 0) |
1224 | return -EINVAL; | |
b4c19c1e MD |
1225 | if (!CTF_TRACE_FIELD_IS_SET(td, uuid)) { |
1226 | memcpy(td->uuid, header.uuid, sizeof(header.uuid)); | |
1227 | CTF_TRACE_SET_FIELD(td, uuid); | |
1228 | } else { | |
72a3bc16 | 1229 | if (bt_uuid_compare(header.uuid, td->uuid)) |
b4c19c1e MD |
1230 | return -EINVAL; |
1231 | } | |
1232 | ||
b1ccd079 MD |
1233 | if ((header.content_size / CHAR_BIT) < header_sizeof(header)) |
1234 | return -EINVAL; | |
1235 | ||
255b2138 | 1236 | toread = (header.content_size / CHAR_BIT) - header_sizeof(header); |
a0fe7d97 MD |
1237 | |
1238 | for (;;) { | |
f8254867 | 1239 | readlen = fread(buf, sizeof(char), min(sizeof(buf) - 1, toread), in); |
b4c19c1e MD |
1240 | if (ferror(in)) { |
1241 | ret = -EINVAL; | |
1242 | break; | |
1243 | } | |
4152822b | 1244 | if (babeltrace_debug) { |
f8254867 | 1245 | buf[readlen] = '\0'; |
3394d22e | 1246 | fprintf(stderr, "[debug] metadata packet read: %s\n", |
4152822b MD |
1247 | buf); |
1248 | } | |
1249 | ||
b4c19c1e MD |
1250 | writelen = fwrite(buf, sizeof(char), readlen, out); |
1251 | if (writelen < readlen) { | |
1252 | ret = -EIO; | |
1253 | break; | |
1254 | } | |
1255 | if (ferror(out)) { | |
1256 | ret = -EINVAL; | |
1257 | break; | |
1258 | } | |
a0fe7d97 MD |
1259 | toread -= readlen; |
1260 | if (!toread) { | |
7f4b5c4d | 1261 | ret = 0; /* continue reading next packet */ |
ddbc52af | 1262 | goto read_padding; |
a0fe7d97 | 1263 | } |
b4c19c1e MD |
1264 | } |
1265 | return ret; | |
ddbc52af MD |
1266 | |
1267 | read_padding: | |
1268 | toread = (header.packet_size - header.content_size) / CHAR_BIT; | |
1269 | ret = fseek(in, toread, SEEK_CUR); | |
1270 | if (ret < 0) { | |
3394d22e | 1271 | fprintf(stderr, "[warning] Missing padding at end of file\n"); |
ddbc52af MD |
1272 | ret = 0; |
1273 | } | |
1274 | return ret; | |
b4c19c1e MD |
1275 | } |
1276 | ||
1277 | static | |
0c880b0a | 1278 | int ctf_trace_metadata_stream_read(struct ctf_trace *td, FILE **fp, |
b4c19c1e MD |
1279 | char **buf) |
1280 | { | |
1281 | FILE *in, *out; | |
abc40d24 | 1282 | size_t size, buflen; |
b4c19c1e MD |
1283 | int ret; |
1284 | ||
1285 | in = *fp; | |
c4f5487e MD |
1286 | /* |
1287 | * Using strlen on *buf instead of size of open_memstream | |
1288 | * because its size includes garbage at the end (after final | |
1289 | * \0). This is the allocated size, not the actual string size. | |
1290 | */ | |
f8370579 | 1291 | out = babeltrace_open_memstream(buf, &size); |
a569a564 MD |
1292 | if (out == NULL) { |
1293 | perror("Metadata open_memstream"); | |
b4c19c1e | 1294 | return -errno; |
a569a564 | 1295 | } |
b4c19c1e | 1296 | for (;;) { |
0c880b0a | 1297 | ret = ctf_trace_metadata_packet_read(td, in, out); |
7f4b5c4d | 1298 | if (ret) { |
b4c19c1e | 1299 | break; |
7f4b5c4d MD |
1300 | } |
1301 | if (feof(in)) { | |
1302 | ret = 0; | |
b4c19c1e MD |
1303 | break; |
1304 | } | |
1305 | } | |
f8370579 MD |
1306 | /* close to flush the buffer */ |
1307 | ret = babeltrace_close_memstream(buf, &size, out); | |
1308 | if (ret < 0) { | |
f824ae04 MD |
1309 | int closeret; |
1310 | ||
f8370579 | 1311 | perror("babeltrace_flush_memstream"); |
f824ae04 MD |
1312 | ret = -errno; |
1313 | closeret = fclose(in); | |
1314 | if (closeret) { | |
1315 | perror("Error in fclose"); | |
1316 | } | |
1317 | return ret; | |
1318 | } | |
1319 | ret = fclose(in); | |
1320 | if (ret) { | |
1321 | perror("Error in fclose"); | |
f8370579 | 1322 | } |
b4c19c1e | 1323 | /* open for reading */ |
abc40d24 MD |
1324 | buflen = strlen(*buf); |
1325 | if (!buflen) { | |
1326 | *fp = NULL; | |
493330cb | 1327 | return -ENOENT; |
abc40d24 MD |
1328 | } |
1329 | *fp = babeltrace_fmemopen(*buf, buflen, "rb"); | |
a569a564 MD |
1330 | if (!*fp) { |
1331 | perror("Metadata fmemopen"); | |
1332 | return -errno; | |
1333 | } | |
b4c19c1e MD |
1334 | return 0; |
1335 | } | |
1336 | ||
65102a8c | 1337 | static |
0c880b0a MD |
1338 | int ctf_trace_metadata_read(struct ctf_trace *td, FILE *metadata_fp, |
1339 | struct ctf_scanner *scanner, int append) | |
65102a8c | 1340 | { |
2d0bea29 | 1341 | struct ctf_file_stream *metadata_stream; |
65102a8c | 1342 | FILE *fp; |
b4c19c1e | 1343 | char *buf = NULL; |
f824ae04 | 1344 | int ret = 0, closeret; |
65102a8c | 1345 | |
2d0bea29 | 1346 | metadata_stream = g_new0(struct ctf_file_stream, 1); |
3a25e036 | 1347 | metadata_stream->pos.last_offset = LAST_OFFSET_POISON; |
b086c01a | 1348 | |
ae23d232 JD |
1349 | if (metadata_fp) { |
1350 | fp = metadata_fp; | |
bcbfb8bf | 1351 | metadata_stream->pos.fd = -1; |
ae23d232 JD |
1352 | } else { |
1353 | td->metadata = &metadata_stream->parent; | |
1354 | metadata_stream->pos.fd = openat(td->dirfd, "metadata", O_RDONLY); | |
1355 | if (metadata_stream->pos.fd < 0) { | |
3394d22e | 1356 | fprintf(stderr, "Unable to open metadata.\n"); |
f824ae04 MD |
1357 | ret = -1; |
1358 | goto end_free; | |
ae23d232 | 1359 | } |
65102a8c | 1360 | |
ae23d232 JD |
1361 | fp = fdopen(metadata_stream->pos.fd, "r"); |
1362 | if (!fp) { | |
3394d22e | 1363 | fprintf(stderr, "[error] Unable to open metadata stream.\n"); |
a569a564 | 1364 | perror("Metadata stream open"); |
ae23d232 JD |
1365 | ret = -errno; |
1366 | goto end_stream; | |
1367 | } | |
f824ae04 MD |
1368 | /* fd now belongs to fp */ |
1369 | metadata_stream->pos.fd = -1; | |
ae23d232 | 1370 | } |
65102a8c MD |
1371 | if (babeltrace_debug) |
1372 | yydebug = 1; | |
1373 | ||
b4c19c1e | 1374 | if (packet_metadata(td, fp)) { |
0c880b0a | 1375 | ret = ctf_trace_metadata_stream_read(td, &fp, &buf); |
abc40d24 | 1376 | if (ret) { |
6514b4af | 1377 | goto end; |
abc40d24 | 1378 | } |
7237592a MD |
1379 | td->metadata_string = buf; |
1380 | td->metadata_packetized = 1; | |
da75b0f7 | 1381 | } else { |
0c880b0a MD |
1382 | if (!append) { |
1383 | unsigned int major, minor; | |
1384 | ssize_t nr_items; | |
1385 | ||
1386 | td->byte_order = BYTE_ORDER; | |
1387 | ||
1388 | /* Check text-only metadata header and version */ | |
1389 | nr_items = fscanf(fp, "/* CTF %10u.%10u", &major, &minor); | |
1390 | if (nr_items < 2) | |
1391 | fprintf(stderr, "[warning] Ill-shapen or missing \"/* CTF x.y\" header for text-only metadata.\n"); | |
1392 | if (check_version(major, minor) < 0) { | |
1393 | ret = -EINVAL; | |
1394 | goto end; | |
1395 | } | |
1396 | rewind(fp); | |
5c262147 | 1397 | } |
b4c19c1e MD |
1398 | } |
1399 | ||
cb2f43ee | 1400 | ret = ctf_scanner_append_ast(scanner, fp); |
65102a8c | 1401 | if (ret) { |
3394d22e | 1402 | fprintf(stderr, "[error] Error creating AST\n"); |
65102a8c MD |
1403 | goto end; |
1404 | } | |
1405 | ||
1406 | if (babeltrace_debug) { | |
3394d22e | 1407 | ret = ctf_visitor_print_xml(stderr, 0, &scanner->ast->root); |
65102a8c | 1408 | if (ret) { |
3394d22e | 1409 | fprintf(stderr, "[error] Error visiting AST for XML output\n"); |
65102a8c MD |
1410 | goto end; |
1411 | } | |
1412 | } | |
1413 | ||
3394d22e | 1414 | ret = ctf_visitor_semantic_check(stderr, 0, &scanner->ast->root); |
65102a8c | 1415 | if (ret) { |
3394d22e | 1416 | fprintf(stderr, "[error] Error in CTF semantic validation %d\n", ret); |
65102a8c MD |
1417 | goto end; |
1418 | } | |
3394d22e | 1419 | ret = ctf_visitor_construct_metadata(stderr, 0, &scanner->ast->root, |
ac5c6ca0 | 1420 | td, td->byte_order); |
65102a8c | 1421 | if (ret) { |
3394d22e | 1422 | fprintf(stderr, "[error] Error in CTF metadata constructor %d\n", ret); |
65102a8c MD |
1423 | goto end; |
1424 | } | |
1425 | end: | |
f824ae04 MD |
1426 | if (fp) { |
1427 | closeret = fclose(fp); | |
1428 | if (closeret) { | |
1429 | perror("Error on fclose"); | |
1430 | } | |
1431 | } | |
65102a8c | 1432 | end_stream: |
f824ae04 MD |
1433 | if (metadata_stream->pos.fd >= 0) { |
1434 | closeret = close(metadata_stream->pos.fd); | |
1435 | if (closeret) { | |
1436 | perror("Error on metadata stream fd close"); | |
1437 | } | |
1438 | } | |
1439 | end_free: | |
2d0bea29 MD |
1440 | if (ret) |
1441 | g_free(metadata_stream); | |
0f980a35 MD |
1442 | return ret; |
1443 | } | |
1444 | ||
e28d4618 | 1445 | static |
c716f83b | 1446 | struct ctf_event_definition *create_event_definitions(struct ctf_trace *td, |
9e88d150 | 1447 | struct ctf_stream_definition *stream, |
4716614a | 1448 | struct ctf_event_declaration *event) |
e28d4618 | 1449 | { |
c716f83b | 1450 | struct ctf_event_definition *stream_event = g_new0(struct ctf_event_definition, 1); |
e28d4618 MD |
1451 | |
1452 | if (event->context_decl) { | |
0d69b916 | 1453 | struct bt_definition *definition = |
e28d4618 MD |
1454 | event->context_decl->p.definition_new(&event->context_decl->p, |
1455 | stream->parent_def_scope, 0, 0, "event.context"); | |
1456 | if (!definition) { | |
1457 | goto error; | |
1458 | } | |
42dc00b7 | 1459 | stream_event->event_context = container_of(definition, |
e28d4618 | 1460 | struct definition_struct, p); |
42dc00b7 | 1461 | stream->parent_def_scope = stream_event->event_context->p.scope; |
e28d4618 MD |
1462 | } |
1463 | if (event->fields_decl) { | |
0d69b916 | 1464 | struct bt_definition *definition = |
e28d4618 MD |
1465 | event->fields_decl->p.definition_new(&event->fields_decl->p, |
1466 | stream->parent_def_scope, 0, 0, "event.fields"); | |
1467 | if (!definition) { | |
1468 | goto error; | |
1469 | } | |
42dc00b7 | 1470 | stream_event->event_fields = container_of(definition, |
e28d4618 | 1471 | struct definition_struct, p); |
42dc00b7 | 1472 | stream->parent_def_scope = stream_event->event_fields->p.scope; |
e28d4618 | 1473 | } |
d3ded99d | 1474 | stream_event->stream = stream; |
42dc00b7 | 1475 | return stream_event; |
e28d4618 MD |
1476 | |
1477 | error: | |
42dc00b7 | 1478 | if (stream_event->event_fields) |
13fad8b6 | 1479 | bt_definition_unref(&stream_event->event_fields->p); |
42dc00b7 | 1480 | if (stream_event->event_context) |
13fad8b6 | 1481 | bt_definition_unref(&stream_event->event_context->p); |
888ec52a MD |
1482 | fprintf(stderr, "[error] Unable to create event definition for event \"%s\".\n", |
1483 | g_quark_to_string(event->name)); | |
e28d4618 MD |
1484 | return NULL; |
1485 | } | |
1486 | ||
0c880b0a MD |
1487 | static |
1488 | int copy_event_declarations_stream_class_to_stream(struct ctf_trace *td, | |
1489 | struct ctf_stream_declaration *stream_class, | |
1490 | struct ctf_stream_definition *stream) | |
1491 | { | |
1492 | size_t def_size, class_size, i; | |
1493 | int ret = 0; | |
1494 | ||
1495 | def_size = stream->events_by_id->len; | |
1496 | class_size = stream_class->events_by_id->len; | |
1497 | ||
1498 | g_ptr_array_set_size(stream->events_by_id, class_size); | |
1499 | for (i = def_size; i < class_size; i++) { | |
1500 | struct ctf_event_declaration *event = | |
1501 | g_ptr_array_index(stream_class->events_by_id, i); | |
1502 | struct ctf_event_definition *stream_event; | |
1503 | ||
1504 | if (!event) | |
1505 | continue; | |
1506 | stream_event = create_event_definitions(td, stream, event); | |
1507 | if (!stream_event) { | |
1508 | ret = -EINVAL; | |
1509 | goto error; | |
1510 | } | |
1511 | g_ptr_array_index(stream->events_by_id, i) = stream_event; | |
1512 | } | |
1513 | error: | |
1514 | return ret; | |
1515 | } | |
1516 | ||
e28d4618 | 1517 | static |
9e88d150 | 1518 | int create_stream_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream) |
e28d4618 | 1519 | { |
f380e105 | 1520 | struct ctf_stream_declaration *stream_class; |
e28d4618 MD |
1521 | int ret; |
1522 | int i; | |
1523 | ||
1524 | if (stream->stream_definitions_created) | |
1525 | return 0; | |
1526 | ||
1527 | stream_class = stream->stream_class; | |
1528 | ||
1529 | if (stream_class->packet_context_decl) { | |
0d69b916 | 1530 | struct bt_definition *definition = |
e28d4618 MD |
1531 | stream_class->packet_context_decl->p.definition_new(&stream_class->packet_context_decl->p, |
1532 | stream->parent_def_scope, 0, 0, "stream.packet.context"); | |
1533 | if (!definition) { | |
1534 | ret = -EINVAL; | |
1535 | goto error; | |
1536 | } | |
1537 | stream->stream_packet_context = container_of(definition, | |
1538 | struct definition_struct, p); | |
1539 | stream->parent_def_scope = stream->stream_packet_context->p.scope; | |
1540 | } | |
1541 | if (stream_class->event_header_decl) { | |
0d69b916 | 1542 | struct bt_definition *definition = |
e28d4618 MD |
1543 | stream_class->event_header_decl->p.definition_new(&stream_class->event_header_decl->p, |
1544 | stream->parent_def_scope, 0, 0, "stream.event.header"); | |
1545 | if (!definition) { | |
1546 | ret = -EINVAL; | |
1547 | goto error; | |
1548 | } | |
1549 | stream->stream_event_header = | |
1550 | container_of(definition, struct definition_struct, p); | |
1551 | stream->parent_def_scope = stream->stream_event_header->p.scope; | |
1552 | } | |
1553 | if (stream_class->event_context_decl) { | |
0d69b916 | 1554 | struct bt_definition *definition = |
e28d4618 MD |
1555 | stream_class->event_context_decl->p.definition_new(&stream_class->event_context_decl->p, |
1556 | stream->parent_def_scope, 0, 0, "stream.event.context"); | |
1557 | if (!definition) { | |
1558 | ret = -EINVAL; | |
1559 | goto error; | |
1560 | } | |
1561 | stream->stream_event_context = | |
1562 | container_of(definition, struct definition_struct, p); | |
1563 | stream->parent_def_scope = stream->stream_event_context->p.scope; | |
1564 | } | |
1565 | stream->events_by_id = g_ptr_array_new(); | |
0c880b0a MD |
1566 | ret = copy_event_declarations_stream_class_to_stream(td, |
1567 | stream_class, stream); | |
1568 | if (ret) | |
1569 | goto error_event; | |
e28d4618 MD |
1570 | return 0; |
1571 | ||
1572 | error_event: | |
1573 | for (i = 0; i < stream->events_by_id->len; i++) { | |
c716f83b | 1574 | struct ctf_event_definition *stream_event = g_ptr_array_index(stream->events_by_id, i); |
42dc00b7 MD |
1575 | if (stream_event) |
1576 | g_free(stream_event); | |
e28d4618 MD |
1577 | } |
1578 | g_ptr_array_free(stream->events_by_id, TRUE); | |
1579 | error: | |
1580 | if (stream->stream_event_context) | |
13fad8b6 | 1581 | bt_definition_unref(&stream->stream_event_context->p); |
e28d4618 | 1582 | if (stream->stream_event_header) |
13fad8b6 | 1583 | bt_definition_unref(&stream->stream_event_header->p); |
e28d4618 | 1584 | if (stream->stream_packet_context) |
13fad8b6 | 1585 | bt_definition_unref(&stream->stream_packet_context->p); |
888ec52a MD |
1586 | fprintf(stderr, "[error] Unable to create stream (%" PRIu64 ") definitions: %s\n", |
1587 | stream_class->stream_id, strerror(-ret)); | |
e28d4618 MD |
1588 | return ret; |
1589 | } | |
1590 | ||
5bfcad93 MD |
1591 | static |
1592 | int stream_assign_class(struct ctf_trace *td, | |
1593 | struct ctf_file_stream *file_stream, | |
1594 | uint64_t stream_id) | |
1595 | { | |
1596 | struct ctf_stream_declaration *stream; | |
1597 | int ret; | |
1598 | ||
1599 | file_stream->parent.stream_id = stream_id; | |
1600 | if (stream_id >= td->streams->len) { | |
1601 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); | |
1602 | return -EINVAL; | |
1603 | } | |
1604 | stream = g_ptr_array_index(td->streams, stream_id); | |
1605 | if (!stream) { | |
1606 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); | |
1607 | return -EINVAL; | |
1608 | } | |
1609 | file_stream->parent.stream_class = stream; | |
1610 | ret = create_stream_definitions(td, &file_stream->parent); | |
1611 | if (ret) | |
1612 | return ret; | |
1613 | return 0; | |
1614 | } | |
1615 | ||
0f980a35 | 1616 | static |
ec323464 MD |
1617 | int create_stream_one_packet_index(struct ctf_stream_pos *pos, |
1618 | struct ctf_trace *td, | |
1619 | struct ctf_file_stream *file_stream, | |
1620 | size_t filesize) | |
0f980a35 | 1621 | { |
ec323464 | 1622 | struct packet_index packet_index; |
ec323464 | 1623 | uint64_t stream_id = 0; |
653906a4 | 1624 | uint64_t packet_map_len = DEFAULT_HEADER_LEN, tmp_map_len; |
ec323464 | 1625 | int first_packet = 0; |
653906a4 | 1626 | int len_index; |
0f980a35 MD |
1627 | int ret; |
1628 | ||
ec323464 | 1629 | begin: |
5f75b32d | 1630 | memset(&packet_index, 0, sizeof(packet_index)); |
ec323464 MD |
1631 | if (!pos->mmap_offset) { |
1632 | first_packet = 1; | |
1633 | } | |
8895362d | 1634 | |
ec323464 MD |
1635 | if (filesize - pos->mmap_offset < (packet_map_len >> LOG2_CHAR_BIT)) { |
1636 | packet_map_len = (filesize - pos->mmap_offset) << LOG2_CHAR_BIT; | |
1637 | } | |
0f980a35 | 1638 | |
ec323464 MD |
1639 | if (pos->base_mma) { |
1640 | /* unmap old base */ | |
1641 | ret = munmap_align(pos->base_mma); | |
1642 | if (ret) { | |
1643 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", | |
1644 | strerror(errno)); | |
1645 | return ret; | |
0f980a35 | 1646 | } |
ec323464 MD |
1647 | pos->base_mma = NULL; |
1648 | } | |
1649 | /* map new base. Need mapping length from header. */ | |
1650 | pos->base_mma = mmap_align(packet_map_len >> LOG2_CHAR_BIT, PROT_READ, | |
1651 | MAP_PRIVATE, pos->fd, pos->mmap_offset); | |
1652 | assert(pos->base_mma != MAP_FAILED); | |
1653 | /* | |
1654 | * Use current mapping size as temporary content and packet | |
1655 | * size. | |
1656 | */ | |
1657 | pos->content_size = packet_map_len; | |
1658 | pos->packet_size = packet_map_len; | |
1659 | pos->offset = 0; /* Position of the packet header */ | |
1660 | ||
1661 | packet_index.offset = pos->mmap_offset; | |
ec323464 MD |
1662 | |
1663 | /* read and check header, set stream id (and check) */ | |
1664 | if (file_stream->parent.trace_packet_header) { | |
1665 | /* Read packet header */ | |
1666 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); | |
1667 | if (ret) { | |
1668 | if (ret == -EFAULT) | |
1669 | goto retry; | |
888ec52a | 1670 | fprintf(stderr, "[error] Unable to read packet header: %s\n", strerror(-ret)); |
ec323464 MD |
1671 | return ret; |
1672 | } | |
1673 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("magic")); | |
1674 | if (len_index >= 0) { | |
1675 | struct bt_definition *field; | |
1676 | uint64_t magic; | |
1677 | ||
1678 | field = bt_struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); | |
1679 | magic = bt_get_unsigned_int(field); | |
1680 | if (magic != CTF_MAGIC) { | |
1681 | fprintf(stderr, "[error] Invalid magic number 0x%" PRIX64 " at packet %u (file offset %zd).\n", | |
1682 | magic, | |
992e8cc0 | 1683 | file_stream->pos.packet_index->len, |
ec323464 MD |
1684 | (ssize_t) pos->mmap_offset); |
1685 | return -EINVAL; | |
0f980a35 | 1686 | } |
ec323464 | 1687 | } |
0f980a35 | 1688 | |
ec323464 MD |
1689 | /* check uuid */ |
1690 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("uuid")); | |
1691 | if (len_index >= 0) { | |
1692 | struct definition_array *defarray; | |
1693 | struct bt_definition *field; | |
1694 | uint64_t i; | |
1695 | uint8_t uuidval[BABELTRACE_UUID_LEN]; | |
0f980a35 | 1696 | |
ec323464 MD |
1697 | field = bt_struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
1698 | assert(field->declaration->id == CTF_TYPE_ARRAY); | |
1699 | defarray = container_of(field, struct definition_array, p); | |
1700 | assert(bt_array_len(defarray) == BABELTRACE_UUID_LEN); | |
0f980a35 | 1701 | |
ec323464 MD |
1702 | for (i = 0; i < BABELTRACE_UUID_LEN; i++) { |
1703 | struct bt_definition *elem; | |
0f980a35 | 1704 | |
ec323464 MD |
1705 | elem = bt_array_index(defarray, i); |
1706 | uuidval[i] = bt_get_unsigned_int(elem); | |
0f980a35 | 1707 | } |
72a3bc16 | 1708 | ret = bt_uuid_compare(td->uuid, uuidval); |
ec323464 MD |
1709 | if (ret) { |
1710 | fprintf(stderr, "[error] Unique Universal Identifiers do not match.\n"); | |
1711 | return -EINVAL; | |
1712 | } | |
1713 | } | |
0f980a35 | 1714 | |
ec323464 MD |
1715 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("stream_id")); |
1716 | if (len_index >= 0) { | |
1717 | struct bt_definition *field; | |
0f980a35 | 1718 | |
ec323464 MD |
1719 | field = bt_struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
1720 | stream_id = bt_get_unsigned_int(field); | |
0f980a35 | 1721 | } |
ec323464 | 1722 | } |
0f980a35 | 1723 | |
ec323464 MD |
1724 | if (!first_packet && file_stream->parent.stream_id != stream_id) { |
1725 | fprintf(stderr, "[error] Stream ID is changing within a stream: expecting %" PRIu64 ", but packet has %" PRIu64 "\n", | |
1726 | stream_id, | |
1727 | file_stream->parent.stream_id); | |
1728 | return -EINVAL; | |
1729 | } | |
1730 | if (first_packet) { | |
5bfcad93 | 1731 | ret = stream_assign_class(td, file_stream, stream_id); |
ec323464 MD |
1732 | if (ret) |
1733 | return ret; | |
1734 | } | |
dc48ecad | 1735 | |
ec323464 MD |
1736 | if (file_stream->parent.stream_packet_context) { |
1737 | /* Read packet context */ | |
1738 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); | |
1739 | if (ret) { | |
1740 | if (ret == -EFAULT) | |
1741 | goto retry; | |
888ec52a | 1742 | fprintf(stderr, "[error] Unable to read packet context: %s\n", strerror(-ret)); |
ec323464 MD |
1743 | return ret; |
1744 | } | |
95b34f38 MD |
1745 | /* read packet size from header */ |
1746 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("packet_size")); | |
ec323464 MD |
1747 | if (len_index >= 0) { |
1748 | struct bt_definition *field; | |
dc48ecad | 1749 | |
ec323464 | 1750 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
95b34f38 | 1751 | packet_index.packet_size = bt_get_unsigned_int(field); |
ec323464 MD |
1752 | } else { |
1753 | /* Use file size for packet size */ | |
95b34f38 | 1754 | packet_index.packet_size = filesize * CHAR_BIT; |
ec323464 | 1755 | } |
75cc2c35 | 1756 | |
95b34f38 MD |
1757 | /* read content size from header */ |
1758 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("content_size")); | |
ec323464 MD |
1759 | if (len_index >= 0) { |
1760 | struct bt_definition *field; | |
75cc2c35 | 1761 | |
ec323464 | 1762 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
95b34f38 | 1763 | packet_index.content_size = bt_get_unsigned_int(field); |
ec323464 | 1764 | } else { |
95b34f38 MD |
1765 | /* Use packet size if non-zero, else file size */ |
1766 | packet_index.content_size = packet_index.packet_size ? : filesize * CHAR_BIT; | |
ec323464 | 1767 | } |
41e82e00 | 1768 | |
ec323464 MD |
1769 | /* read timestamp begin from header */ |
1770 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_begin")); | |
1771 | if (len_index >= 0) { | |
1772 | struct bt_definition *field; | |
41e82e00 | 1773 | |
ec323464 | 1774 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
992e8cc0 | 1775 | packet_index.ts_cycles.timestamp_begin = bt_get_unsigned_int(field); |
4c62e2d8 | 1776 | if (file_stream->parent.stream_class->trace->parent.collection) { |
992e8cc0 | 1777 | packet_index.ts_real.timestamp_begin = |
ec323464 MD |
1778 | ctf_get_real_timestamp( |
1779 | &file_stream->parent, | |
992e8cc0 | 1780 | packet_index.ts_cycles.timestamp_begin); |
41e82e00 | 1781 | } |
0f980a35 | 1782 | } |
546293fa | 1783 | |
ec323464 MD |
1784 | /* read timestamp end from header */ |
1785 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_end")); | |
1786 | if (len_index >= 0) { | |
1787 | struct bt_definition *field; | |
1788 | ||
1789 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); | |
992e8cc0 | 1790 | packet_index.ts_cycles.timestamp_end = bt_get_unsigned_int(field); |
4c62e2d8 | 1791 | if (file_stream->parent.stream_class->trace->parent.collection) { |
992e8cc0 | 1792 | packet_index.ts_real.timestamp_end = |
ec323464 MD |
1793 | ctf_get_real_timestamp( |
1794 | &file_stream->parent, | |
992e8cc0 | 1795 | packet_index.ts_cycles.timestamp_end); |
ec323464 | 1796 | } |
546293fa MD |
1797 | } |
1798 | ||
ec323464 MD |
1799 | /* read events discarded from header */ |
1800 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("events_discarded")); | |
1801 | if (len_index >= 0) { | |
1802 | struct bt_definition *field; | |
1803 | ||
1804 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); | |
1805 | packet_index.events_discarded = bt_get_unsigned_int(field); | |
1806 | packet_index.events_discarded_len = bt_get_int_len(field); | |
546293fa | 1807 | } |
2328c2cd JD |
1808 | |
1809 | /* read packet_seq_num from header */ | |
1810 | len_index = bt_struct_declaration_lookup_field_index( | |
1811 | file_stream->parent.stream_packet_context->declaration, | |
1812 | g_quark_from_static_string("packet_seq_num")); | |
1813 | if (len_index >= 0) { | |
1814 | struct bt_definition *field; | |
1815 | ||
1816 | field = bt_struct_definition_get_field_from_index( | |
1817 | file_stream->parent.stream_packet_context, | |
1818 | len_index); | |
1819 | packet_index.packet_seq_num = bt_get_unsigned_int(field); | |
1820 | } | |
ec323464 MD |
1821 | } else { |
1822 | /* Use file size for packet size */ | |
2d686891 MD |
1823 | packet_index.packet_size = filesize * CHAR_BIT; |
1824 | /* Use packet size if non-zero, else file size */ | |
1825 | packet_index.content_size = packet_index.packet_size ? : filesize * CHAR_BIT; | |
ec323464 MD |
1826 | } |
1827 | ||
1828 | /* Validate content size and packet size values */ | |
1829 | if (packet_index.content_size > packet_index.packet_size) { | |
1830 | fprintf(stderr, "[error] Content size (%" PRIu64 " bits) is larger than packet size (%" PRIu64 " bits).\n", | |
1831 | packet_index.content_size, packet_index.packet_size); | |
1832 | return -EINVAL; | |
1833 | } | |
1834 | ||
1835 | if (packet_index.packet_size > ((uint64_t) filesize - packet_index.offset) * CHAR_BIT) { | |
1836 | fprintf(stderr, "[error] Packet size (%" PRIu64 " bits) is larger than remaining file size (%" PRIu64 " bits).\n", | |
1837 | packet_index.packet_size, ((uint64_t) filesize - packet_index.offset) * CHAR_BIT); | |
1838 | return -EINVAL; | |
1839 | } | |
546293fa | 1840 | |
a7ac9efd MD |
1841 | if (packet_index.content_size < pos->offset) { |
1842 | fprintf(stderr, "[error] Invalid CTF stream: content size is smaller than packet headers.\n"); | |
1843 | return -EINVAL; | |
1844 | } | |
1845 | ||
2d686891 MD |
1846 | if ((packet_index.packet_size >> LOG2_CHAR_BIT) == 0) { |
1847 | fprintf(stderr, "[error] Invalid CTF stream: packet size needs to be at least one byte\n"); | |
1848 | return -EINVAL; | |
1849 | } | |
1850 | ||
ec323464 MD |
1851 | /* Save position after header and context */ |
1852 | packet_index.data_offset = pos->offset; | |
0f980a35 | 1853 | |
ec323464 | 1854 | /* add index to packet array */ |
992e8cc0 | 1855 | g_array_append_val(file_stream->pos.packet_index, packet_index); |
0f980a35 | 1856 | |
ec323464 MD |
1857 | pos->mmap_offset += packet_index.packet_size >> LOG2_CHAR_BIT; |
1858 | ||
1859 | return 0; | |
1860 | ||
1861 | /* Retry with larger mapping */ | |
1862 | retry: | |
1863 | if (packet_map_len == ((filesize - pos->mmap_offset) << LOG2_CHAR_BIT)) { | |
1864 | /* | |
1865 | * Reached EOF, but still expecting header/context data. | |
1866 | */ | |
1867 | fprintf(stderr, "[error] Reached end of file, but still expecting header or context fields.\n"); | |
1868 | return -EFAULT; | |
1869 | } | |
1870 | /* Double the mapping len, and retry */ | |
1871 | tmp_map_len = packet_map_len << 1; | |
1872 | if (tmp_map_len >> 1 != packet_map_len) { | |
1873 | /* Overflow */ | |
888ec52a | 1874 | fprintf(stderr, "[error] Packet mapping length overflow\n"); |
ec323464 | 1875 | return -EFAULT; |
0f980a35 | 1876 | } |
ec323464 MD |
1877 | packet_map_len = tmp_map_len; |
1878 | goto begin; | |
1879 | } | |
1880 | ||
1881 | static | |
1882 | int create_stream_packet_index(struct ctf_trace *td, | |
1883 | struct ctf_file_stream *file_stream) | |
1884 | { | |
1885 | struct ctf_stream_pos *pos; | |
1886 | struct stat filestats; | |
1887 | int ret; | |
1888 | ||
1889 | pos = &file_stream->pos; | |
0f980a35 | 1890 | |
ec323464 MD |
1891 | ret = fstat(pos->fd, &filestats); |
1892 | if (ret < 0) | |
1893 | return ret; | |
1894 | ||
5bfcad93 MD |
1895 | /* Deal with empty files */ |
1896 | if (!filestats.st_size) { | |
1897 | if (file_stream->parent.trace_packet_header | |
1898 | || file_stream->parent.stream_packet_context) { | |
1899 | /* | |
1900 | * We expect a trace packet header and/or stream packet | |
1901 | * context. Since a trace needs to have at least one | |
1902 | * packet, empty files are therefore not accepted. | |
1903 | */ | |
1904 | fprintf(stderr, "[error] Encountered an empty file, but expecting a trace packet header.\n"); | |
1905 | return -EINVAL; | |
1906 | } else { | |
1907 | /* | |
1908 | * Without trace packet header nor stream packet | |
1909 | * context, a one-packet trace can indeed be empty. This | |
1910 | * is only valid if there is only one stream class: 0. | |
1911 | */ | |
1912 | ret = stream_assign_class(td, file_stream, 0); | |
1913 | if (ret) | |
1914 | return ret; | |
1915 | return 0; | |
1916 | } | |
1917 | } | |
1918 | ||
ec323464 MD |
1919 | for (pos->mmap_offset = 0; pos->mmap_offset < filestats.st_size; ) { |
1920 | ret = create_stream_one_packet_index(pos, td, file_stream, | |
1921 | filestats.st_size); | |
1922 | if (ret) | |
1923 | return ret; | |
1924 | } | |
0f980a35 MD |
1925 | return 0; |
1926 | } | |
1927 | ||
e28d4618 | 1928 | static |
9e88d150 | 1929 | int create_trace_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream) |
e28d4618 MD |
1930 | { |
1931 | int ret; | |
1932 | ||
1933 | if (td->packet_header_decl) { | |
0d69b916 | 1934 | struct bt_definition *definition = |
e28d4618 MD |
1935 | td->packet_header_decl->p.definition_new(&td->packet_header_decl->p, |
1936 | stream->parent_def_scope, 0, 0, "trace.packet.header"); | |
1937 | if (!definition) { | |
1938 | ret = -EINVAL; | |
1939 | goto error; | |
1940 | } | |
1941 | stream->trace_packet_header = | |
1942 | container_of(definition, struct definition_struct, p); | |
1943 | stream->parent_def_scope = stream->trace_packet_header->p.scope; | |
1944 | } | |
1945 | ||
1946 | return 0; | |
1947 | ||
1948 | error: | |
888ec52a | 1949 | fprintf(stderr, "[error] Unable to create trace definitions: %s\n", strerror(-ret)); |
e28d4618 MD |
1950 | return ret; |
1951 | } | |
1952 | ||
0ace7505 JD |
1953 | static |
1954 | int import_stream_packet_index(struct ctf_trace *td, | |
1955 | struct ctf_file_stream *file_stream) | |
1956 | { | |
0ace7505 | 1957 | struct ctf_stream_pos *pos; |
3ecd366e | 1958 | struct ctf_packet_index *ctf_index = NULL; |
0ace7505 JD |
1959 | struct ctf_packet_index_file_hdr index_hdr; |
1960 | struct packet_index index; | |
138cb20b | 1961 | uint32_t packet_index_len, index_minor; |
0ace7505 JD |
1962 | int ret = 0; |
1963 | int first_packet = 1; | |
1964 | size_t len; | |
1965 | ||
1966 | pos = &file_stream->pos; | |
1967 | ||
1968 | len = fread(&index_hdr, sizeof(index_hdr), 1, pos->index_fp); | |
1969 | if (len != 1) { | |
1970 | perror("read index file header"); | |
1971 | goto error; | |
1972 | } | |
1973 | ||
1974 | /* Check the index header */ | |
1975 | if (be32toh(index_hdr.magic) != CTF_INDEX_MAGIC) { | |
1976 | fprintf(stderr, "[error] wrong index magic\n"); | |
1977 | ret = -1; | |
1978 | goto error; | |
1979 | } | |
1980 | if (be32toh(index_hdr.index_major) != CTF_INDEX_MAJOR) { | |
f84c13d9 MJ |
1981 | fprintf(stderr, "[error] Incompatible index file %" PRIu32 |
1982 | ".%" PRIu32 ", supported %d.%d\n", | |
1983 | be32toh(index_hdr.index_major), | |
1984 | be32toh(index_hdr.index_minor), CTF_INDEX_MAJOR, | |
0ace7505 JD |
1985 | CTF_INDEX_MINOR); |
1986 | ret = -1; | |
1987 | goto error; | |
1988 | } | |
138cb20b JD |
1989 | index_minor = be32toh(index_hdr.index_minor); |
1990 | ||
e83ce12a JD |
1991 | packet_index_len = be32toh(index_hdr.packet_index_len); |
1992 | if (packet_index_len == 0) { | |
a74d9cb2 MD |
1993 | fprintf(stderr, "[error] Packet index length cannot be 0.\n"); |
1994 | ret = -1; | |
1995 | goto error; | |
1996 | } | |
3ecd366e MD |
1997 | /* |
1998 | * Allocate the index length found in header, not internal | |
1999 | * representation. | |
2000 | */ | |
e83ce12a JD |
2001 | ctf_index = g_malloc0(packet_index_len); |
2002 | while (fread(ctf_index, packet_index_len, 1, | |
ad40ac1a | 2003 | pos->index_fp) == 1) { |
0ace7505 | 2004 | uint64_t stream_id; |
51e0087f | 2005 | struct ctf_stream_declaration *stream = NULL; |
0ace7505 JD |
2006 | |
2007 | memset(&index, 0, sizeof(index)); | |
3ecd366e MD |
2008 | index.offset = be64toh(ctf_index->offset); |
2009 | index.packet_size = be64toh(ctf_index->packet_size); | |
2010 | index.content_size = be64toh(ctf_index->content_size); | |
2011 | index.ts_cycles.timestamp_begin = be64toh(ctf_index->timestamp_begin); | |
2012 | index.ts_cycles.timestamp_end = be64toh(ctf_index->timestamp_end); | |
2013 | index.events_discarded = be64toh(ctf_index->events_discarded); | |
0ace7505 | 2014 | index.events_discarded_len = 64; |
e69dd258 | 2015 | index.data_offset = -1; |
3ecd366e | 2016 | stream_id = be64toh(ctf_index->stream_id); |
138cb20b JD |
2017 | if (index_minor >= 1) { |
2018 | index.stream_instance_id = be64toh(ctf_index->stream_instance_id); | |
2019 | index.packet_seq_num = be64toh(ctf_index->packet_seq_num); | |
2020 | } | |
0ace7505 JD |
2021 | |
2022 | if (!first_packet) { | |
2023 | /* add index to packet array */ | |
992e8cc0 | 2024 | g_array_append_val(file_stream->pos.packet_index, index); |
0ace7505 JD |
2025 | continue; |
2026 | } | |
2027 | ||
2028 | file_stream->parent.stream_id = stream_id; | |
51e0087f JG |
2029 | if (stream_id < td->streams->len) { |
2030 | stream = g_ptr_array_index(td->streams, stream_id); | |
2031 | } | |
0ace7505 JD |
2032 | if (!stream) { |
2033 | fprintf(stderr, "[error] Stream %" PRIu64 | |
2034 | " is not declared in metadata.\n", | |
2035 | stream_id); | |
2036 | ret = -EINVAL; | |
2037 | goto error; | |
2038 | } | |
2039 | file_stream->parent.stream_class = stream; | |
2040 | ret = create_stream_definitions(td, &file_stream->parent); | |
2041 | if (ret) | |
2042 | goto error; | |
2043 | first_packet = 0; | |
2044 | /* add index to packet array */ | |
992e8cc0 | 2045 | g_array_append_val(file_stream->pos.packet_index, index); |
0ace7505 JD |
2046 | } |
2047 | ||
dae407df JD |
2048 | /* Index containing only the header. */ |
2049 | if (!file_stream->parent.stream_class) { | |
2050 | ret = -1; | |
2051 | goto error; | |
2052 | } | |
2053 | ||
0ace7505 JD |
2054 | ret = 0; |
2055 | ||
2056 | error: | |
3ecd366e | 2057 | g_free(ctf_index); |
0ace7505 JD |
2058 | return ret; |
2059 | } | |
2060 | ||
0f980a35 MD |
2061 | /* |
2062 | * Note: many file streams can inherit from the same stream class | |
2063 | * description (metadata). | |
2064 | */ | |
2065 | static | |
b086c01a | 2066 | int ctf_open_file_stream_read(struct ctf_trace *td, const char *path, int flags, |
1cf393f6 | 2067 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
b086c01a | 2068 | int whence)) |
0f980a35 | 2069 | { |
f824ae04 | 2070 | int ret, fd, closeret; |
0f980a35 | 2071 | struct ctf_file_stream *file_stream; |
ff075710 | 2072 | struct stat statbuf; |
0ace7505 | 2073 | char *index_name; |
0f980a35 | 2074 | |
ff075710 MD |
2075 | fd = openat(td->dirfd, path, flags); |
2076 | if (fd < 0) { | |
a569a564 | 2077 | perror("File stream openat()"); |
ff075710 | 2078 | ret = fd; |
0f980a35 | 2079 | goto error; |
a569a564 | 2080 | } |
ff075710 MD |
2081 | |
2082 | /* Don't try to mmap subdirectories. Skip them, return success. */ | |
2083 | ret = fstat(fd, &statbuf); | |
2084 | if (ret) { | |
2085 | perror("File stream fstat()"); | |
2086 | goto fstat_error; | |
2087 | } | |
2088 | if (S_ISDIR(statbuf.st_mode)) { | |
0ace7505 JD |
2089 | if (strncmp(path, "index", 5) != 0) { |
2090 | fprintf(stderr, "[warning] Skipping directory '%s' " | |
2091 | "found in trace\n", path); | |
2092 | } | |
ff075710 MD |
2093 | ret = 0; |
2094 | goto fd_is_dir_ok; | |
2095 | } | |
f4f0fb70 MD |
2096 | if (!statbuf.st_size) { |
2097 | /** Skip empty files. */ | |
2098 | ret = 0; | |
2099 | goto fd_is_empty_file; | |
2100 | } | |
ff075710 | 2101 | |
0f980a35 | 2102 | file_stream = g_new0(struct ctf_file_stream, 1); |
3a25e036 | 2103 | file_stream->pos.last_offset = LAST_OFFSET_POISON; |
0ace7505 JD |
2104 | file_stream->pos.fd = -1; |
2105 | file_stream->pos.index_fp = NULL; | |
b086c01a | 2106 | |
87148dc7 MD |
2107 | strncpy(file_stream->parent.path, path, PATH_MAX); |
2108 | file_stream->parent.path[PATH_MAX - 1] = '\0'; | |
2109 | ||
06789ffd MD |
2110 | if (packet_seek) { |
2111 | file_stream->pos.packet_seek = packet_seek; | |
b086c01a | 2112 | } else { |
06789ffd | 2113 | fprintf(stderr, "[error] packet_seek function undefined.\n"); |
b086c01a JD |
2114 | ret = -1; |
2115 | goto error_def; | |
2116 | } | |
2117 | ||
ca334c72 | 2118 | ret = ctf_init_pos(&file_stream->pos, &td->parent, fd, flags); |
f824ae04 MD |
2119 | if (ret) |
2120 | goto error_def; | |
2d0bea29 | 2121 | ret = create_trace_definitions(td, &file_stream->parent); |
e28d4618 MD |
2122 | if (ret) |
2123 | goto error_def; | |
25ccc85b | 2124 | /* |
50052405 | 2125 | * For now, only a single clock per trace is supported. |
25ccc85b | 2126 | */ |
7ec78969 | 2127 | file_stream->parent.current_clock = td->parent.single_clock; |
0ace7505 JD |
2128 | |
2129 | /* | |
2130 | * Allocate the index name for this stream and try to open it. | |
2131 | */ | |
2132 | index_name = malloc((strlen(path) + sizeof(INDEX_PATH)) * sizeof(char)); | |
2133 | if (!index_name) { | |
2134 | fprintf(stderr, "[error] Cannot allocate index filename\n"); | |
f4f0fb70 | 2135 | ret = -ENOMEM; |
0ace7505 | 2136 | goto error_def; |
888ec52a | 2137 | } |
0ace7505 JD |
2138 | snprintf(index_name, strlen(path) + sizeof(INDEX_PATH), |
2139 | INDEX_PATH, path); | |
2140 | ||
ff48c2b0 | 2141 | if (bt_faccessat(td->dirfd, td->parent.path, index_name, O_RDONLY, 0) < 0) { |
0ace7505 JD |
2142 | ret = create_stream_packet_index(td, file_stream); |
2143 | if (ret) { | |
2144 | fprintf(stderr, "[error] Stream index creation error.\n"); | |
2145 | goto error_index; | |
2146 | } | |
2147 | } else { | |
2148 | ret = openat(td->dirfd, index_name, flags); | |
2149 | if (ret < 0) { | |
2150 | perror("Index file openat()"); | |
2151 | ret = -1; | |
2152 | goto error_free; | |
2153 | } | |
2154 | file_stream->pos.index_fp = fdopen(ret, "r"); | |
2f0c6a52 MD |
2155 | if (!file_stream->pos.index_fp) { |
2156 | perror("fdopen() error"); | |
2157 | goto error_free; | |
2158 | } | |
0ace7505 JD |
2159 | ret = import_stream_packet_index(td, file_stream); |
2160 | if (ret) { | |
2161 | ret = -1; | |
2162 | goto error_index; | |
2163 | } | |
2164 | ret = fclose(file_stream->pos.index_fp); | |
2165 | if (ret < 0) { | |
2166 | perror("close index"); | |
2167 | goto error_free; | |
2168 | } | |
2169 | } | |
2170 | free(index_name); | |
2171 | ||
0f980a35 | 2172 | /* Add stream file to stream class */ |
2d0bea29 MD |
2173 | g_ptr_array_add(file_stream->parent.stream_class->streams, |
2174 | &file_stream->parent); | |
0f980a35 MD |
2175 | return 0; |
2176 | ||
2177 | error_index: | |
0ace7505 JD |
2178 | if (file_stream->pos.index_fp) { |
2179 | ret = fclose(file_stream->pos.index_fp); | |
2180 | if (ret < 0) { | |
2181 | perror("close index"); | |
2182 | } | |
2183 | } | |
2d0bea29 | 2184 | if (file_stream->parent.trace_packet_header) |
13fad8b6 | 2185 | bt_definition_unref(&file_stream->parent.trace_packet_header->p); |
0ace7505 JD |
2186 | error_free: |
2187 | free(index_name); | |
e28d4618 | 2188 | error_def: |
f824ae04 MD |
2189 | closeret = ctf_fini_pos(&file_stream->pos); |
2190 | if (closeret) { | |
2191 | fprintf(stderr, "Error on ctf_fini_pos\n"); | |
2192 | } | |
0f980a35 | 2193 | g_free(file_stream); |
f4f0fb70 | 2194 | fd_is_empty_file: |
ff075710 MD |
2195 | fd_is_dir_ok: |
2196 | fstat_error: | |
f824ae04 MD |
2197 | closeret = close(fd); |
2198 | if (closeret) { | |
2199 | perror("Error on fd close"); | |
2200 | } | |
0f980a35 | 2201 | error: |
65102a8c MD |
2202 | return ret; |
2203 | } | |
2204 | ||
bbefb8dd | 2205 | static |
5b80ddfb | 2206 | int ctf_open_trace_read(struct ctf_trace *td, |
8c250d87 | 2207 | const char *path, int flags, |
1cf393f6 | 2208 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
ae23d232 | 2209 | int whence), FILE *metadata_fp) |
bbefb8dd | 2210 | { |
6514b4af | 2211 | struct ctf_scanner *scanner; |
f824ae04 | 2212 | int ret, closeret; |
65102a8c MD |
2213 | struct dirent *dirent; |
2214 | struct dirent *diriter; | |
2215 | size_t dirent_len; | |
0ace7505 | 2216 | char *ext; |
bbefb8dd | 2217 | |
46322b33 | 2218 | td->flags = flags; |
bbefb8dd MD |
2219 | |
2220 | /* Open trace directory */ | |
46322b33 MD |
2221 | td->dir = opendir(path); |
2222 | if (!td->dir) { | |
6a6b384c | 2223 | fprintf(stderr, "[error] Unable to open trace directory \"%s\".\n", path); |
bbefb8dd MD |
2224 | ret = -ENOENT; |
2225 | goto error; | |
2226 | } | |
2227 | ||
46322b33 MD |
2228 | td->dirfd = open(path, 0); |
2229 | if (td->dirfd < 0) { | |
6a6b384c | 2230 | fprintf(stderr, "[error] Unable to open trace directory file descriptor for path \"%s\".\n", path); |
a569a564 MD |
2231 | perror("Trace directory open"); |
2232 | ret = -errno; | |
65102a8c MD |
2233 | goto error_dirfd; |
2234 | } | |
caf929fa MD |
2235 | strncpy(td->parent.path, path, sizeof(td->parent.path)); |
2236 | td->parent.path[sizeof(td->parent.path) - 1] = '\0'; | |
0f980a35 | 2237 | |
65102a8c MD |
2238 | /* |
2239 | * Keep the metadata file separate. | |
0c880b0a MD |
2240 | * Keep scanner object local to the open. We don't support |
2241 | * incremental metadata append for on-disk traces. | |
65102a8c | 2242 | */ |
6514b4af MD |
2243 | scanner = ctf_scanner_alloc(); |
2244 | if (!scanner) { | |
2245 | fprintf(stderr, "[error] Error allocating scanner\n"); | |
2246 | ret = -ENOMEM; | |
2247 | goto error_metadata; | |
2248 | } | |
0c880b0a | 2249 | ret = ctf_trace_metadata_read(td, metadata_fp, scanner, 0); |
6514b4af | 2250 | ctf_scanner_free(scanner); |
65102a8c | 2251 | if (ret) { |
251fc08c MD |
2252 | if (ret == -ENOENT) { |
2253 | fprintf(stderr, "[warning] Empty metadata.\n"); | |
2254 | } | |
6a6b384c | 2255 | fprintf(stderr, "[warning] Unable to open trace metadata for path \"%s\".\n", path); |
65102a8c MD |
2256 | goto error_metadata; |
2257 | } | |
bbefb8dd MD |
2258 | |
2259 | /* | |
2260 | * Open each stream: for each file, try to open, check magic | |
2261 | * number, and get the stream ID to add to the right location in | |
2262 | * the stream array. | |
bbefb8dd MD |
2263 | */ |
2264 | ||
65102a8c | 2265 | dirent_len = offsetof(struct dirent, d_name) + |
46322b33 | 2266 | fpathconf(td->dirfd, _PC_NAME_MAX) + 1; |
bbefb8dd | 2267 | |
65102a8c | 2268 | dirent = malloc(dirent_len); |
bbefb8dd | 2269 | |
65102a8c | 2270 | for (;;) { |
46322b33 | 2271 | ret = readdir_r(td->dir, dirent, &diriter); |
65102a8c | 2272 | if (ret) { |
3394d22e | 2273 | fprintf(stderr, "[error] Readdir error.\n"); |
65102a8c | 2274 | goto readdir_error; |
65102a8c MD |
2275 | } |
2276 | if (!diriter) | |
2277 | break; | |
d8ea2d29 MD |
2278 | /* Ignore hidden files, ., .. and metadata. */ |
2279 | if (!strncmp(diriter->d_name, ".", 1) | |
65102a8c MD |
2280 | || !strcmp(diriter->d_name, "..") |
2281 | || !strcmp(diriter->d_name, "metadata")) | |
2282 | continue; | |
0ace7505 JD |
2283 | |
2284 | /* Ignore index files : *.idx */ | |
2285 | ext = strrchr(diriter->d_name, '.'); | |
2286 | if (ext && (!strcmp(ext, ".idx"))) { | |
2287 | continue; | |
2288 | } | |
2289 | ||
06789ffd MD |
2290 | ret = ctf_open_file_stream_read(td, diriter->d_name, |
2291 | flags, packet_seek); | |
dc48ecad | 2292 | if (ret) { |
3394d22e | 2293 | fprintf(stderr, "[error] Open file stream error.\n"); |
dc48ecad MD |
2294 | goto readdir_error; |
2295 | } | |
65102a8c | 2296 | } |
bbefb8dd | 2297 | |
65102a8c | 2298 | free(dirent); |
bbefb8dd | 2299 | return 0; |
65102a8c MD |
2300 | |
2301 | readdir_error: | |
2302 | free(dirent); | |
2303 | error_metadata: | |
f824ae04 MD |
2304 | closeret = close(td->dirfd); |
2305 | if (closeret) { | |
2306 | perror("Error on fd close"); | |
2307 | } | |
65102a8c | 2308 | error_dirfd: |
f824ae04 MD |
2309 | closeret = closedir(td->dir); |
2310 | if (closeret) { | |
2311 | perror("Error on closedir"); | |
2312 | } | |
bbefb8dd MD |
2313 | error: |
2314 | return ret; | |
2315 | } | |
2316 | ||
03798a93 JD |
2317 | /* |
2318 | * ctf_open_trace: Open a CTF trace and index it. | |
2319 | * Note that the user must seek the trace after the open (using the iterator) | |
2320 | * since the index creation read it entirely. | |
2321 | */ | |
e9378815 | 2322 | static |
1b8455b7 | 2323 | struct bt_trace_descriptor *ctf_open_trace(const char *path, int flags, |
1cf393f6 | 2324 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
ae23d232 | 2325 | int whence), FILE *metadata_fp) |
bbefb8dd | 2326 | { |
46322b33 | 2327 | struct ctf_trace *td; |
bbefb8dd MD |
2328 | int ret; |
2329 | ||
2715de36 MD |
2330 | /* |
2331 | * If packet_seek is NULL, we provide our default version. | |
2332 | */ | |
2333 | if (!packet_seek) | |
2334 | packet_seek = ctf_packet_seek; | |
2335 | ||
46322b33 | 2336 | td = g_new0(struct ctf_trace, 1); |
bbefb8dd | 2337 | |
8c572eba | 2338 | switch (flags & O_ACCMODE) { |
bbefb8dd | 2339 | case O_RDONLY: |
b61922b5 | 2340 | if (!path) { |
3394d22e | 2341 | fprintf(stderr, "[error] Path missing for input CTF trace.\n"); |
b61922b5 MD |
2342 | goto error; |
2343 | } | |
06789ffd | 2344 | ret = ctf_open_trace_read(td, path, flags, packet_seek, metadata_fp); |
bbefb8dd MD |
2345 | if (ret) |
2346 | goto error; | |
2347 | break; | |
989c73bc | 2348 | case O_RDWR: |
3394d22e | 2349 | fprintf(stderr, "[error] Opening CTF traces for output is not supported yet.\n"); |
46322b33 | 2350 | goto error; |
bbefb8dd | 2351 | default: |
3394d22e | 2352 | fprintf(stderr, "[error] Incorrect open flags.\n"); |
bbefb8dd MD |
2353 | goto error; |
2354 | } | |
2355 | ||
46322b33 | 2356 | return &td->parent; |
bbefb8dd MD |
2357 | error: |
2358 | g_free(td); | |
2359 | return NULL; | |
2360 | } | |
2361 | ||
2e937fb4 | 2362 | static |
f571dfb1 | 2363 | void ctf_init_mmap_pos(struct ctf_stream_pos *pos, |
c150f912 | 2364 | struct bt_mmap_stream *mmap_info) |
f571dfb1 JD |
2365 | { |
2366 | pos->mmap_offset = 0; | |
2367 | pos->packet_size = 0; | |
2368 | pos->content_size = 0; | |
2369 | pos->content_size_loc = NULL; | |
2370 | pos->fd = mmap_info->fd; | |
aee35fcc | 2371 | pos->base_mma = NULL; |
f571dfb1 JD |
2372 | pos->offset = 0; |
2373 | pos->dummy = false; | |
2374 | pos->cur_index = 0; | |
f571dfb1 JD |
2375 | pos->prot = PROT_READ; |
2376 | pos->flags = MAP_PRIVATE; | |
2377 | pos->parent.rw_table = read_dispatch_table; | |
2378 | pos->parent.event_cb = ctf_read_event; | |
731087d8 | 2379 | pos->priv = mmap_info->priv; |
f1f52630 MD |
2380 | pos->packet_index = g_array_new(FALSE, TRUE, |
2381 | sizeof(struct packet_index)); | |
f571dfb1 JD |
2382 | } |
2383 | ||
2384 | static | |
2385 | int prepare_mmap_stream_definition(struct ctf_trace *td, | |
fb6b45aa JD |
2386 | struct ctf_file_stream *file_stream, |
2387 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, | |
2388 | int whence)) | |
f571dfb1 | 2389 | { |
f380e105 | 2390 | struct ctf_stream_declaration *stream; |
fb6b45aa | 2391 | uint64_t stream_id; |
f571dfb1 JD |
2392 | int ret; |
2393 | ||
fb6b45aa JD |
2394 | /* Ask for the first packet to get the stream_id. */ |
2395 | packet_seek(&file_stream->pos.parent, 0, SEEK_SET); | |
2396 | stream_id = file_stream->parent.stream_id; | |
f571dfb1 | 2397 | if (stream_id >= td->streams->len) { |
3394d22e | 2398 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared " |
f571dfb1 JD |
2399 | "in metadata.\n", stream_id); |
2400 | ret = -EINVAL; | |
2401 | goto end; | |
2402 | } | |
2403 | stream = g_ptr_array_index(td->streams, stream_id); | |
2404 | if (!stream) { | |
3394d22e | 2405 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared " |
f571dfb1 JD |
2406 | "in metadata.\n", stream_id); |
2407 | ret = -EINVAL; | |
2408 | goto end; | |
2409 | } | |
2410 | file_stream->parent.stream_class = stream; | |
2411 | ret = create_stream_definitions(td, &file_stream->parent); | |
2412 | end: | |
2413 | return ret; | |
2414 | } | |
2415 | ||
2416 | static | |
2417 | int ctf_open_mmap_stream_read(struct ctf_trace *td, | |
c150f912 | 2418 | struct bt_mmap_stream *mmap_info, |
1cf393f6 | 2419 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
f571dfb1 JD |
2420 | int whence)) |
2421 | { | |
2422 | int ret; | |
2423 | struct ctf_file_stream *file_stream; | |
2424 | ||
2425 | file_stream = g_new0(struct ctf_file_stream, 1); | |
fb6b45aa | 2426 | file_stream->parent.stream_id = -1ULL; |
3a25e036 | 2427 | file_stream->pos.last_offset = LAST_OFFSET_POISON; |
f571dfb1 JD |
2428 | ctf_init_mmap_pos(&file_stream->pos, mmap_info); |
2429 | ||
06789ffd | 2430 | file_stream->pos.packet_seek = packet_seek; |
f571dfb1 JD |
2431 | |
2432 | ret = create_trace_definitions(td, &file_stream->parent); | |
2433 | if (ret) { | |
2434 | goto error_def; | |
2435 | } | |
2436 | ||
fb6b45aa | 2437 | ret = prepare_mmap_stream_definition(td, file_stream, packet_seek); |
f571dfb1 JD |
2438 | if (ret) |
2439 | goto error_index; | |
2440 | ||
f7bbd502 | 2441 | /* |
50052405 | 2442 | * For now, only a single clock per trace is supported. |
f7bbd502 | 2443 | */ |
7ec78969 | 2444 | file_stream->parent.current_clock = td->parent.single_clock; |
f7bbd502 | 2445 | |
f571dfb1 JD |
2446 | /* Add stream file to stream class */ |
2447 | g_ptr_array_add(file_stream->parent.stream_class->streams, | |
2448 | &file_stream->parent); | |
2449 | return 0; | |
2450 | ||
2451 | error_index: | |
2452 | if (file_stream->parent.trace_packet_header) | |
13fad8b6 | 2453 | bt_definition_unref(&file_stream->parent.trace_packet_header->p); |
f571dfb1 JD |
2454 | error_def: |
2455 | g_free(file_stream); | |
2456 | return ret; | |
2457 | } | |
2458 | ||
2e937fb4 | 2459 | static |
f571dfb1 | 2460 | int ctf_open_mmap_trace_read(struct ctf_trace *td, |
c150f912 | 2461 | struct bt_mmap_stream_list *mmap_list, |
1cf393f6 | 2462 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
f571dfb1 JD |
2463 | int whence), |
2464 | FILE *metadata_fp) | |
2465 | { | |
2466 | int ret; | |
c150f912 | 2467 | struct bt_mmap_stream *mmap_info; |
f571dfb1 | 2468 | |
0c880b0a MD |
2469 | td->scanner = ctf_scanner_alloc(); |
2470 | if (!td->scanner) { | |
6514b4af MD |
2471 | fprintf(stderr, "[error] Error allocating scanner\n"); |
2472 | ret = -ENOMEM; | |
0c880b0a | 2473 | goto error; |
6514b4af | 2474 | } |
0c880b0a | 2475 | ret = ctf_trace_metadata_read(td, metadata_fp, td->scanner, 0); |
f571dfb1 | 2476 | if (ret) { |
251fc08c MD |
2477 | if (ret == -ENOENT) { |
2478 | fprintf(stderr, "[warning] Empty metadata.\n"); | |
2479 | } | |
f571dfb1 JD |
2480 | goto error; |
2481 | } | |
2482 | ||
2483 | /* | |
2484 | * for each stream, try to open, check magic number, and get the | |
2485 | * stream ID to add to the right location in the stream array. | |
2486 | */ | |
3122e6f0 | 2487 | bt_list_for_each_entry(mmap_info, &mmap_list->head, list) { |
06789ffd | 2488 | ret = ctf_open_mmap_stream_read(td, mmap_info, packet_seek); |
f571dfb1 | 2489 | if (ret) { |
3394d22e | 2490 | fprintf(stderr, "[error] Open file mmap stream error.\n"); |
f571dfb1 JD |
2491 | goto error; |
2492 | } | |
2493 | } | |
f571dfb1 JD |
2494 | return 0; |
2495 | ||
2496 | error: | |
0c880b0a | 2497 | ctf_scanner_free(td->scanner); |
f571dfb1 JD |
2498 | return ret; |
2499 | } | |
2500 | ||
2501 | static | |
1b8455b7 | 2502 | struct bt_trace_descriptor *ctf_open_mmap_trace( |
c150f912 | 2503 | struct bt_mmap_stream_list *mmap_list, |
1cf393f6 | 2504 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
20d0dcf9 | 2505 | int whence), |
f571dfb1 JD |
2506 | FILE *metadata_fp) |
2507 | { | |
2508 | struct ctf_trace *td; | |
2509 | int ret; | |
2510 | ||
2511 | if (!metadata_fp) { | |
2512 | fprintf(stderr, "[error] No metadata file pointer associated, " | |
2513 | "required for mmap parsing\n"); | |
2514 | goto error; | |
2515 | } | |
06789ffd MD |
2516 | if (!packet_seek) { |
2517 | fprintf(stderr, "[error] packet_seek function undefined.\n"); | |
f571dfb1 JD |
2518 | goto error; |
2519 | } | |
2520 | td = g_new0(struct ctf_trace, 1); | |
b5a1fa45 | 2521 | td->dirfd = -1; |
06789ffd | 2522 | ret = ctf_open_mmap_trace_read(td, mmap_list, packet_seek, metadata_fp); |
f571dfb1 JD |
2523 | if (ret) |
2524 | goto error_free; | |
2525 | ||
2526 | return &td->parent; | |
2527 | ||
2528 | error_free: | |
2529 | g_free(td); | |
2530 | error: | |
2531 | return NULL; | |
2532 | } | |
2533 | ||
0c880b0a MD |
2534 | int ctf_append_trace_metadata(struct bt_trace_descriptor *tdp, |
2535 | FILE *metadata_fp) | |
2536 | { | |
2537 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); | |
2538 | int i, j; | |
2539 | int ret; | |
2540 | ||
2541 | if (!td->scanner) | |
2542 | return -EINVAL; | |
2543 | ret = ctf_trace_metadata_read(td, metadata_fp, td->scanner, 1); | |
2544 | if (ret) | |
2545 | return ret; | |
2546 | /* for each stream_class */ | |
2547 | for (i = 0; i < td->streams->len; i++) { | |
2548 | struct ctf_stream_declaration *stream_class; | |
2549 | ||
2550 | stream_class = g_ptr_array_index(td->streams, i); | |
2551 | if (!stream_class) | |
2552 | continue; | |
2553 | /* for each stream */ | |
2554 | for (j = 0; j < stream_class->streams->len; j++) { | |
2555 | struct ctf_stream_definition *stream; | |
2556 | ||
2557 | stream = g_ptr_array_index(stream_class->streams, j); | |
2558 | if (!stream) | |
2559 | continue; | |
2560 | ret = copy_event_declarations_stream_class_to_stream(td, | |
2561 | stream_class, stream); | |
2562 | if (ret) | |
2563 | return ret; | |
2564 | } | |
2565 | } | |
2566 | return 0; | |
2567 | } | |
2568 | ||
03798a93 | 2569 | static |
1b8455b7 | 2570 | int ctf_convert_index_timestamp(struct bt_trace_descriptor *tdp) |
03798a93 JD |
2571 | { |
2572 | int i, j, k; | |
2573 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); | |
2574 | ||
2575 | /* for each stream_class */ | |
2576 | for (i = 0; i < td->streams->len; i++) { | |
2577 | struct ctf_stream_declaration *stream_class; | |
2578 | ||
2579 | stream_class = g_ptr_array_index(td->streams, i); | |
2580 | if (!stream_class) | |
2581 | continue; | |
2582 | /* for each file_stream */ | |
2583 | for (j = 0; j < stream_class->streams->len; j++) { | |
2584 | struct ctf_stream_definition *stream; | |
2585 | struct ctf_stream_pos *stream_pos; | |
2586 | struct ctf_file_stream *cfs; | |
2587 | ||
2588 | stream = g_ptr_array_index(stream_class->streams, j); | |
2589 | if (!stream) | |
2590 | continue; | |
2591 | cfs = container_of(stream, struct ctf_file_stream, | |
2592 | parent); | |
2593 | stream_pos = &cfs->pos; | |
992e8cc0 | 2594 | if (!stream_pos->packet_index) |
afe9cd4a JD |
2595 | continue; |
2596 | ||
992e8cc0 | 2597 | for (k = 0; k < stream_pos->packet_index->len; k++) { |
03798a93 | 2598 | struct packet_index *index; |
03798a93 | 2599 | |
992e8cc0 | 2600 | index = &g_array_index(stream_pos->packet_index, |
03798a93 | 2601 | struct packet_index, k); |
992e8cc0 | 2602 | index->ts_real.timestamp_begin = |
03798a93 | 2603 | ctf_get_real_timestamp(stream, |
992e8cc0 MD |
2604 | index->ts_cycles.timestamp_begin); |
2605 | index->ts_real.timestamp_end = | |
03798a93 | 2606 | ctf_get_real_timestamp(stream, |
992e8cc0 | 2607 | index->ts_cycles.timestamp_end); |
03798a93 JD |
2608 | } |
2609 | } | |
2610 | } | |
2611 | return 0; | |
2612 | } | |
2613 | ||
0f980a35 | 2614 | static |
f824ae04 | 2615 | int ctf_close_file_stream(struct ctf_file_stream *file_stream) |
0f980a35 | 2616 | { |
f824ae04 MD |
2617 | int ret; |
2618 | ||
2619 | ret = ctf_fini_pos(&file_stream->pos); | |
2620 | if (ret) { | |
2621 | fprintf(stderr, "Error on ctf_fini_pos\n"); | |
2622 | return -1; | |
2623 | } | |
500634be JD |
2624 | if (file_stream->pos.fd >= 0) { |
2625 | ret = close(file_stream->pos.fd); | |
2626 | if (ret) { | |
2627 | perror("Error closing file fd"); | |
2628 | return -1; | |
2629 | } | |
f824ae04 MD |
2630 | } |
2631 | return 0; | |
0f980a35 MD |
2632 | } |
2633 | ||
e9378815 | 2634 | static |
1b8455b7 | 2635 | int ctf_close_trace(struct bt_trace_descriptor *tdp) |
bbefb8dd | 2636 | { |
46322b33 | 2637 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); |
08c82b90 | 2638 | int ret; |
0f980a35 | 2639 | |
46322b33 | 2640 | if (td->streams) { |
08c82b90 MD |
2641 | int i; |
2642 | ||
46322b33 | 2643 | for (i = 0; i < td->streams->len; i++) { |
f380e105 | 2644 | struct ctf_stream_declaration *stream; |
0f980a35 | 2645 | int j; |
e9378815 | 2646 | |
46322b33 | 2647 | stream = g_ptr_array_index(td->streams, i); |
e9378815 MD |
2648 | if (!stream) |
2649 | continue; | |
2d0bea29 | 2650 | for (j = 0; j < stream->streams->len; j++) { |
0f980a35 | 2651 | struct ctf_file_stream *file_stream; |
15d4fe3c JD |
2652 | file_stream = container_of(g_ptr_array_index(stream->streams, j), |
2653 | struct ctf_file_stream, parent); | |
f824ae04 MD |
2654 | ret = ctf_close_file_stream(file_stream); |
2655 | if (ret) | |
2656 | return ret; | |
0f980a35 | 2657 | } |
e003ab50 | 2658 | } |
e003ab50 | 2659 | } |
15d4fe3c | 2660 | ctf_destroy_metadata(td); |
0c880b0a | 2661 | ctf_scanner_free(td->scanner); |
500634be JD |
2662 | if (td->dirfd >= 0) { |
2663 | ret = close(td->dirfd); | |
2664 | if (ret) { | |
2665 | perror("Error closing dirfd"); | |
2666 | return ret; | |
2667 | } | |
f824ae04 | 2668 | } |
500634be JD |
2669 | if (td->dir) { |
2670 | ret = closedir(td->dir); | |
2671 | if (ret) { | |
2672 | perror("Error closedir"); | |
2673 | return ret; | |
2674 | } | |
f824ae04 | 2675 | } |
7237592a | 2676 | free(td->metadata_string); |
bbefb8dd | 2677 | g_free(td); |
f824ae04 | 2678 | return 0; |
bbefb8dd MD |
2679 | } |
2680 | ||
98a04903 | 2681 | static |
1b8455b7 | 2682 | void ctf_set_context(struct bt_trace_descriptor *descriptor, |
98a04903 JD |
2683 | struct bt_context *ctx) |
2684 | { | |
2685 | struct ctf_trace *td = container_of(descriptor, struct ctf_trace, | |
2686 | parent); | |
2687 | ||
45807148 | 2688 | td->parent.ctx = ctx; |
98a04903 JD |
2689 | } |
2690 | ||
2691 | static | |
1b8455b7 | 2692 | void ctf_set_handle(struct bt_trace_descriptor *descriptor, |
98a04903 JD |
2693 | struct bt_trace_handle *handle) |
2694 | { | |
2695 | struct ctf_trace *td = container_of(descriptor, struct ctf_trace, | |
2696 | parent); | |
2697 | ||
4d086981 | 2698 | td->parent.handle = handle; |
98a04903 JD |
2699 | } |
2700 | ||
95febab3 | 2701 | static |
7fb21036 | 2702 | void __attribute__((constructor)) ctf_init(void) |
fc93b2bd MD |
2703 | { |
2704 | int ret; | |
2705 | ||
4c8bfb7e | 2706 | ctf_format.name = g_quark_from_static_string("ctf"); |
fc93b2bd MD |
2707 | ret = bt_register_format(&ctf_format); |
2708 | assert(!ret); | |
2709 | } | |
698f0fe4 | 2710 | |
95febab3 MD |
2711 | static |
2712 | void __attribute__((destructor)) ctf_exit(void) | |
2713 | { | |
2714 | bt_unregister_format(&ctf_format); | |
2715 | } |