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> | |
837b0013 | 30 | #include <babeltrace/format-internal.h> |
fc93b2bd | 31 | #include <babeltrace/ctf/types.h> |
bbefb8dd | 32 | #include <babeltrace/ctf/metadata.h> |
70bd0a12 | 33 | #include <babeltrace/babeltrace-internal.h> |
e4195791 | 34 | #include <babeltrace/ctf/events-internal.h> |
98a04903 JD |
35 | #include <babeltrace/trace-handle-internal.h> |
36 | #include <babeltrace/context-internal.h> | |
4cb26dfb | 37 | #include <babeltrace/compat/uuid.h> |
43e34335 | 38 | #include <babeltrace/endian.h> |
eb75a494 | 39 | #include <babeltrace/trace-debug-info.h> |
0ace7505 | 40 | #include <babeltrace/ctf/ctf-index.h> |
0f980a35 | 41 | #include <inttypes.h> |
b4c19c1e | 42 | #include <stdio.h> |
0f980a35 | 43 | #include <sys/mman.h> |
bbefb8dd | 44 | #include <errno.h> |
bbefb8dd | 45 | #include <sys/types.h> |
65102a8c | 46 | #include <sys/stat.h> |
bbefb8dd | 47 | #include <fcntl.h> |
65102a8c | 48 | #include <dirent.h> |
bbefb8dd | 49 | #include <glib.h> |
65102a8c MD |
50 | #include <unistd.h> |
51 | #include <stdlib.h> | |
52 | ||
65102a8c MD |
53 | #include "metadata/ctf-scanner.h" |
54 | #include "metadata/ctf-parser.h" | |
55 | #include "metadata/ctf-ast.h" | |
c34ea0fa | 56 | #include "events-private.h" |
68ef7952 | 57 | #include <babeltrace/compat/memstream.h> |
edcad9c1 | 58 | #include <babeltrace/compat/fcntl.h> |
65102a8c | 59 | |
ec323464 MD |
60 | #define LOG2_CHAR_BIT 3 |
61 | ||
62 | /* | |
63 | * Length of first attempt at mapping a packet header, in bits. | |
64 | */ | |
65 | #define DEFAULT_HEADER_LEN (getpagesize() * CHAR_BIT) | |
66 | ||
0f980a35 | 67 | /* |
ec323464 | 68 | * Lenght of packet to write, in bits. |
0f980a35 | 69 | */ |
8c572eba | 70 | #define WRITE_PACKET_LEN (getpagesize() * 8 * CHAR_BIT) |
0f980a35 | 71 | |
7d97fad9 MD |
72 | #define NSEC_PER_SEC 1000000000ULL |
73 | ||
0ace7505 JD |
74 | #define INDEX_PATH "./index/%s.idx" |
75 | ||
03798a93 | 76 | int opt_clock_cycles, |
7d97fad9 MD |
77 | opt_clock_seconds, |
78 | opt_clock_date, | |
79 | opt_clock_gmt; | |
80 | ||
81 | uint64_t opt_clock_offset; | |
65923160 | 82 | uint64_t opt_clock_offset_ns; |
7d97fad9 | 83 | |
65102a8c | 84 | extern int yydebug; |
3be1e3c9 | 85 | char *opt_debug_info_dir; |
b7b61ced | 86 | char *opt_debug_info_target_prefix; |
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 MD |
782 | break; |
783 | default: | |
784 | assert(0); | |
8c572eba | 785 | } |
f824ae04 | 786 | return 0; |
8c572eba MD |
787 | } |
788 | ||
f824ae04 | 789 | int ctf_fini_pos(struct ctf_stream_pos *pos) |
8c572eba | 790 | { |
fcf10417 | 791 | if ((pos->prot & PROT_WRITE) && pos->content_size_loc) |
8c572eba | 792 | *pos->content_size_loc = pos->offset; |
aee35fcc | 793 | if (pos->base_mma) { |
08c82b90 MD |
794 | int ret; |
795 | ||
8c572eba | 796 | /* unmap old base */ |
aee35fcc | 797 | ret = munmap_align(pos->base_mma); |
8c572eba | 798 | if (ret) { |
3394d22e | 799 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", |
8c572eba | 800 | strerror(errno)); |
f824ae04 | 801 | return -1; |
8c572eba MD |
802 | } |
803 | } | |
992e8cc0 MD |
804 | if (pos->packet_index) |
805 | (void) g_array_free(pos->packet_index, TRUE); | |
f824ae04 | 806 | return 0; |
8c572eba MD |
807 | } |
808 | ||
f1f52630 MD |
809 | void ctf_update_current_packet_index(struct ctf_stream_definition *stream, |
810 | struct packet_index *prev_index, | |
811 | struct packet_index *cur_index) | |
812 | { | |
813 | uint64_t events_discarded_diff; | |
2328c2cd | 814 | uint64_t packets_lost_diff = 0; |
f1f52630 MD |
815 | |
816 | /* Update packet index time information */ | |
2654fe9b MD |
817 | |
818 | /* Current packet begin/end */ | |
819 | stream->current.real.begin = | |
820 | cur_index->ts_real.timestamp_begin; | |
821 | stream->current.cycles.begin = | |
f1f52630 | 822 | cur_index->ts_cycles.timestamp_begin; |
2654fe9b | 823 | stream->current.real.end = |
f1f52630 | 824 | cur_index->ts_real.timestamp_end; |
2654fe9b MD |
825 | stream->current.cycles.end = |
826 | cur_index->ts_cycles.timestamp_end; | |
f1f52630 MD |
827 | |
828 | /* Update packet index discarded event information */ | |
829 | events_discarded_diff = cur_index->events_discarded; | |
830 | if (prev_index) { | |
2654fe9b MD |
831 | /* Previous packet begin/end */ |
832 | stream->prev.cycles.begin = | |
833 | prev_index->ts_cycles.timestamp_begin; | |
834 | stream->prev.real.begin = | |
835 | prev_index->ts_real.timestamp_begin; | |
836 | stream->prev.cycles.end = | |
837 | prev_index->ts_cycles.timestamp_end; | |
838 | stream->prev.real.end = | |
839 | prev_index->ts_real.timestamp_end; | |
840 | ||
f1f52630 | 841 | events_discarded_diff -= prev_index->events_discarded; |
2328c2cd JD |
842 | /* packet_seq_num stays at 0 if not produced by the tracer */ |
843 | if (cur_index->packet_seq_num) { | |
844 | packets_lost_diff = cur_index->packet_seq_num - | |
845 | prev_index->packet_seq_num - 1; | |
846 | } | |
f1f52630 MD |
847 | /* |
848 | * Deal with 32-bit wrap-around if the tracer provided a | |
849 | * 32-bit field. | |
850 | */ | |
851 | if (prev_index->events_discarded_len == 32) { | |
852 | events_discarded_diff = (uint32_t) events_discarded_diff; | |
853 | } | |
2654fe9b MD |
854 | } else { |
855 | /* | |
856 | * First packet: use current packet info as limits for | |
857 | * previous packet. | |
858 | */ | |
859 | stream->prev.cycles.begin = | |
860 | stream->prev.cycles.end = | |
861 | stream->current.cycles.begin; | |
862 | stream->prev.real.begin = | |
863 | stream->prev.real.end = | |
864 | stream->current.real.begin; | |
f1f52630 MD |
865 | } |
866 | stream->events_discarded = events_discarded_diff; | |
2328c2cd | 867 | stream->packets_lost = packets_lost_diff; |
f1f52630 MD |
868 | } |
869 | ||
37ea109a JD |
870 | /* |
871 | * Find the timerange where all the streams in the trace are active | |
872 | * simultaneously. | |
873 | * | |
874 | * Return 0 and update begin/end if necessary on success, return 1 for | |
875 | * empty streams and return a negative value on error. | |
876 | */ | |
877 | static | |
837b0013 JG |
878 | int ctf_find_stream_intersection(struct bt_trace_descriptor *td_read, |
879 | struct packet_index_time *_real, | |
880 | struct packet_index_time *_cycles) | |
37ea109a | 881 | { |
37ea109a | 882 | int stream_id, ret = 0; |
837b0013 JG |
883 | struct packet_index_time real = { 0, UINT64_MAX }, |
884 | cycles = { 0, UINT64_MAX }; | |
885 | struct ctf_trace *tin = container_of(td_read, struct ctf_trace, parent); | |
37ea109a | 886 | |
837b0013 JG |
887 | /* At least one of the two return args must be provided. */ |
888 | if (!_real && !_cycles) { | |
889 | ret = -1; | |
890 | goto end; | |
891 | } | |
892 | ||
893 | if (tin->streams->len == 0) { | |
894 | ret = 1; | |
895 | goto end; | |
896 | } | |
37ea109a JD |
897 | |
898 | for (stream_id = 0; stream_id < tin->streams->len; | |
899 | stream_id++) { | |
900 | int filenr; | |
901 | struct ctf_stream_declaration *stream_class; | |
902 | ||
903 | stream_class = g_ptr_array_index(tin->streams, stream_id); | |
904 | if (!stream_class) { | |
905 | continue; | |
906 | } | |
907 | for (filenr = 0; filenr < stream_class->streams->len; filenr++) { | |
908 | struct ctf_file_stream *file_stream; | |
909 | struct ctf_stream_pos *stream_pos; | |
910 | struct packet_index *index; | |
911 | ||
912 | file_stream = g_ptr_array_index(stream_class->streams, | |
913 | filenr); | |
914 | if (!file_stream) { | |
915 | continue; | |
916 | } | |
917 | stream_pos = &file_stream->pos; | |
918 | if (!stream_pos->packet_index || | |
919 | stream_pos->packet_index->len <= 0) { | |
920 | ret = 1; | |
921 | goto end; | |
922 | } | |
923 | index = &g_array_index(stream_pos->packet_index, | |
924 | struct packet_index, 0); | |
837b0013 JG |
925 | real.timestamp_begin = max(real.timestamp_begin, |
926 | index->ts_real.timestamp_begin); | |
927 | cycles.timestamp_begin = max(cycles.timestamp_begin, | |
928 | index->ts_cycles.timestamp_begin); | |
929 | ||
37ea109a JD |
930 | index = &g_array_index(stream_pos->packet_index, |
931 | struct packet_index, | |
932 | stream_pos->packet_index->len - 1); | |
837b0013 JG |
933 | real.timestamp_end = min(real.timestamp_end, |
934 | index->ts_real.timestamp_end); | |
935 | cycles.timestamp_end = min(cycles.timestamp_end, | |
936 | index->ts_cycles.timestamp_end); | |
37ea109a JD |
937 | } |
938 | } | |
37ea109a | 939 | end: |
837b0013 JG |
940 | if (ret == 0) { |
941 | if (_real) { | |
942 | *_real = real; | |
943 | } | |
944 | if (_cycles) { | |
945 | *_cycles = cycles; | |
946 | } | |
947 | } | |
37ea109a JD |
948 | return ret; |
949 | } | |
950 | ||
951 | /* | |
837b0013 JG |
952 | * Find the union of all active regions in the trace collection's traces. |
953 | * Returns "real" timestamps. | |
37ea109a JD |
954 | * |
955 | * Return 0 on success. | |
956 | * Return 1 if no intersections are found. | |
957 | * Return a negative value on error. | |
958 | */ | |
837b0013 JG |
959 | int ctf_find_tc_stream_packet_intersection_union(struct bt_context *ctx, |
960 | uint64_t *_ts_begin, uint64_t *_ts_end) | |
37ea109a | 961 | { |
837b0013 JG |
962 | int ret = 0, i; |
963 | uint64_t ts_begin = UINT64_MAX, ts_end = 0; | |
37ea109a | 964 | |
837b0013 | 965 | if (!ctx || !ctx->tc || !ctx->tc->array || !_ts_begin || !_ts_end) { |
37ea109a JD |
966 | ret = -EINVAL; |
967 | goto end; | |
968 | } | |
969 | ||
970 | for (i = 0; i < ctx->tc->array->len; i++) { | |
971 | struct bt_trace_descriptor *td_read; | |
837b0013 | 972 | struct packet_index_time intersection_real; |
37ea109a JD |
973 | |
974 | td_read = g_ptr_array_index(ctx->tc->array, i); | |
975 | if (!td_read) { | |
976 | continue; | |
977 | } | |
837b0013 JG |
978 | ret = ctf_find_stream_intersection(td_read, &intersection_real, |
979 | NULL); | |
980 | if (ret == 1) { | |
981 | /* Empty trace or no stream intersection. */ | |
982 | continue; | |
983 | } else if (ret < 0) { | |
37ea109a JD |
984 | goto end; |
985 | } | |
837b0013 JG |
986 | |
987 | ts_begin = min(intersection_real.timestamp_begin, ts_begin); | |
988 | ts_end = max(intersection_real.timestamp_end, ts_end); | |
37ea109a | 989 | } |
837b0013 JG |
990 | |
991 | if (ts_end < ts_begin) { | |
37ea109a | 992 | ret = 1; |
837b0013 JG |
993 | goto end; |
994 | } | |
995 | *_ts_begin = ts_begin; | |
996 | *_ts_end = ts_end; | |
997 | end: | |
998 | return ret; | |
999 | } | |
1000 | ||
1001 | int ctf_tc_set_stream_intersection_mode(struct bt_context *ctx) | |
1002 | { | |
1003 | int ret = 0, i; | |
1004 | ||
1005 | if (!ctx || !ctx->tc || !ctx->tc->array) { | |
1006 | ret = -EINVAL; | |
1007 | goto end; | |
1008 | } | |
1009 | ||
1010 | for (i = 0; i < ctx->tc->array->len; i++) { | |
1011 | struct bt_trace_descriptor *td_read; | |
1012 | struct packet_index_time intersection_real; | |
1013 | ||
1014 | td_read = g_ptr_array_index(ctx->tc->array, i); | |
1015 | if (!td_read) { | |
1016 | continue; | |
1017 | } | |
1018 | ||
1019 | ret = ctf_find_stream_intersection(td_read, &intersection_real, | |
1020 | NULL); | |
1021 | if (ret == 1) { | |
1022 | /* Empty trace or no stream intersection. */ | |
1023 | continue; | |
1024 | } else if (ret < 0) { | |
1025 | goto end; | |
1026 | } | |
1027 | ||
1028 | td_read->interval_real = intersection_real; | |
1029 | td_read->interval_set = true; | |
37ea109a JD |
1030 | } |
1031 | end: | |
1032 | return ret; | |
1033 | } | |
1034 | ||
20d0dcf9 MD |
1035 | /* |
1036 | * for SEEK_CUR: go to next packet. | |
34b8fff6 | 1037 | * for SEEK_SET: go to packet numer (index). |
20d0dcf9 | 1038 | */ |
1cf393f6 | 1039 | void ctf_packet_seek(struct bt_stream_pos *stream_pos, size_t index, int whence) |
0f980a35 | 1040 | { |
d6425aaf MD |
1041 | struct ctf_stream_pos *pos = |
1042 | container_of(stream_pos, struct ctf_stream_pos, parent); | |
75cc2c35 MD |
1043 | struct ctf_file_stream *file_stream = |
1044 | container_of(pos, struct ctf_file_stream, pos); | |
0f980a35 | 1045 | int ret; |
2654fe9b | 1046 | struct packet_index *packet_index, *prev_index; |
0f980a35 | 1047 | |
5bfcad93 MD |
1048 | switch (whence) { |
1049 | case SEEK_CUR: | |
1050 | case SEEK_SET: /* Fall-through */ | |
1051 | break; /* OK */ | |
1052 | default: | |
1053 | assert(0); | |
1054 | } | |
1055 | ||
fcf10417 | 1056 | if ((pos->prot & PROT_WRITE) && pos->content_size_loc) |
8c572eba | 1057 | *pos->content_size_loc = pos->offset; |
0f980a35 | 1058 | |
aee35fcc | 1059 | if (pos->base_mma) { |
0f980a35 | 1060 | /* unmap old base */ |
aee35fcc | 1061 | ret = munmap_align(pos->base_mma); |
0f980a35 | 1062 | if (ret) { |
3394d22e | 1063 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", |
0f980a35 MD |
1064 | strerror(errno)); |
1065 | assert(0); | |
1066 | } | |
aee35fcc | 1067 | pos->base_mma = NULL; |
0f980a35 MD |
1068 | } |
1069 | ||
8c572eba | 1070 | /* |
46322b33 | 1071 | * The caller should never ask for ctf_move_pos across packets, |
8c572eba MD |
1072 | * except to get exactly at the beginning of the next packet. |
1073 | */ | |
fcf10417 | 1074 | if (pos->prot & PROT_WRITE) { |
989c73bc MD |
1075 | switch (whence) { |
1076 | case SEEK_CUR: | |
1077 | /* The writer will add padding */ | |
e0a5b455 | 1078 | pos->mmap_offset += pos->packet_size / CHAR_BIT; |
989c73bc MD |
1079 | break; |
1080 | case SEEK_SET: | |
20d0dcf9 | 1081 | assert(index == 0); /* only seek supported for now */ |
989c73bc MD |
1082 | pos->cur_index = 0; |
1083 | break; | |
1084 | default: | |
1085 | assert(0); | |
1086 | } | |
8c572eba MD |
1087 | pos->content_size = -1U; /* Unknown at this point */ |
1088 | pos->packet_size = WRITE_PACKET_LEN; | |
118f5776 MD |
1089 | do { |
1090 | ret = bt_posix_fallocate(pos->fd, pos->mmap_offset, | |
1091 | pos->packet_size / CHAR_BIT); | |
1092 | } while (ret == EINTR); | |
1093 | assert(ret == 0); | |
847bf71a | 1094 | pos->offset = 0; |
8c572eba | 1095 | } else { |
5f643ed7 | 1096 | read_next_packet: |
847bf71a MD |
1097 | switch (whence) { |
1098 | case SEEK_CUR: | |
41e82e00 | 1099 | { |
7d97fad9 MD |
1100 | if (pos->offset == EOF) { |
1101 | return; | |
1102 | } | |
992e8cc0 | 1103 | assert(pos->cur_index < pos->packet_index->len); |
847bf71a | 1104 | /* The reader will expect us to skip padding */ |
8c572eba | 1105 | ++pos->cur_index; |
847bf71a | 1106 | break; |
41e82e00 | 1107 | } |
847bf71a | 1108 | case SEEK_SET: |
992e8cc0 | 1109 | if (index >= pos->packet_index->len) { |
c309df1c MD |
1110 | pos->offset = EOF; |
1111 | return; | |
1112 | } | |
20d0dcf9 | 1113 | pos->cur_index = index; |
847bf71a MD |
1114 | break; |
1115 | default: | |
1116 | assert(0); | |
1117 | } | |
2654fe9b | 1118 | |
0e1b84aa MD |
1119 | if (pos->cur_index >= pos->packet_index->len) { |
1120 | pos->offset = EOF; | |
1121 | return; | |
1122 | } | |
1123 | ||
2654fe9b MD |
1124 | packet_index = &g_array_index(pos->packet_index, |
1125 | struct packet_index, pos->cur_index); | |
1126 | if (pos->cur_index > 0) { | |
1127 | prev_index = &g_array_index(pos->packet_index, | |
1128 | struct packet_index, | |
1129 | pos->cur_index - 1); | |
1130 | } else { | |
1131 | prev_index = NULL; | |
1132 | } | |
1133 | ctf_update_current_packet_index(&file_stream->parent, | |
1134 | prev_index, packet_index); | |
1135 | ||
2654fe9b MD |
1136 | /* |
1137 | * We need to check if we are in trace read or called | |
1138 | * from packet indexing. In this last case, the | |
1139 | * collection is not there, so we cannot print the | |
1140 | * timestamps. | |
1141 | */ | |
1142 | if ((&file_stream->parent)->stream_class->trace->parent.collection) { | |
2328c2cd | 1143 | ctf_print_discarded_lost(stderr, &file_stream->parent); |
2654fe9b MD |
1144 | } |
1145 | ||
992e8cc0 | 1146 | packet_index = &g_array_index(pos->packet_index, |
03798a93 JD |
1147 | struct packet_index, |
1148 | pos->cur_index); | |
992e8cc0 | 1149 | file_stream->parent.cycles_timestamp = packet_index->ts_cycles.timestamp_begin; |
03798a93 | 1150 | |
992e8cc0 | 1151 | file_stream->parent.real_timestamp = packet_index->ts_real.timestamp_begin; |
8c572eba MD |
1152 | |
1153 | /* Lookup context/packet size in index */ | |
e69dd258 JD |
1154 | if (packet_index->data_offset == -1) { |
1155 | ret = find_data_offset(pos, file_stream, packet_index); | |
1156 | if (ret < 0) { | |
1157 | return; | |
1158 | } | |
1159 | } | |
20d0dcf9 MD |
1160 | pos->content_size = packet_index->content_size; |
1161 | pos->packet_size = packet_index->packet_size; | |
e69dd258 | 1162 | pos->mmap_offset = packet_index->offset; |
500634be JD |
1163 | pos->data_offset = packet_index->data_offset; |
1164 | if (pos->data_offset < packet_index->content_size) { | |
75cc2c35 | 1165 | pos->offset = 0; /* will read headers */ |
500634be | 1166 | } else if (pos->data_offset == packet_index->content_size) { |
5f643ed7 | 1167 | /* empty packet */ |
20d0dcf9 | 1168 | pos->offset = packet_index->data_offset; |
3abe83c7 | 1169 | whence = SEEK_CUR; |
5f643ed7 | 1170 | goto read_next_packet; |
7eda6fc7 | 1171 | } else { |
2b9a764d MD |
1172 | pos->offset = EOF; |
1173 | return; | |
1174 | } | |
8c572eba | 1175 | } |
0f980a35 | 1176 | /* map new base. Need mapping length from header. */ |
aee35fcc MD |
1177 | pos->base_mma = mmap_align(pos->packet_size / CHAR_BIT, pos->prot, |
1178 | pos->flags, pos->fd, pos->mmap_offset); | |
1179 | if (pos->base_mma == MAP_FAILED) { | |
3394d22e | 1180 | fprintf(stderr, "[error] mmap error %s.\n", |
847bf71a MD |
1181 | strerror(errno)); |
1182 | assert(0); | |
1183 | } | |
75cc2c35 MD |
1184 | |
1185 | /* update trace_packet_header and stream_packet_context */ | |
fcf10417 JG |
1186 | if (!(pos->prot & PROT_WRITE) && |
1187 | file_stream->parent.trace_packet_header) { | |
75cc2c35 | 1188 | /* Read packet header */ |
2d0bea29 | 1189 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); |
75cc2c35 MD |
1190 | assert(!ret); |
1191 | } | |
fcf10417 JG |
1192 | if (!(pos->prot & PROT_WRITE) && |
1193 | file_stream->parent.stream_packet_context) { | |
75cc2c35 | 1194 | /* Read packet context */ |
2d0bea29 | 1195 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); |
75cc2c35 MD |
1196 | assert(!ret); |
1197 | } | |
0f980a35 MD |
1198 | } |
1199 | ||
b4c19c1e MD |
1200 | static |
1201 | int packet_metadata(struct ctf_trace *td, FILE *fp) | |
1202 | { | |
1203 | uint32_t magic; | |
1204 | size_t len; | |
1205 | int ret = 0; | |
1206 | ||
1207 | len = fread(&magic, sizeof(magic), 1, fp); | |
a0fe7d97 | 1208 | if (len != 1) { |
b4c19c1e MD |
1209 | goto end; |
1210 | } | |
1211 | if (magic == TSDL_MAGIC) { | |
1212 | ret = 1; | |
1213 | td->byte_order = BYTE_ORDER; | |
0d336fdf | 1214 | CTF_TRACE_SET_FIELD(td, byte_order); |
b4c19c1e MD |
1215 | } else if (magic == GUINT32_SWAP_LE_BE(TSDL_MAGIC)) { |
1216 | ret = 1; | |
1217 | td->byte_order = (BYTE_ORDER == BIG_ENDIAN) ? | |
1218 | LITTLE_ENDIAN : BIG_ENDIAN; | |
0d336fdf | 1219 | CTF_TRACE_SET_FIELD(td, byte_order); |
b4c19c1e MD |
1220 | } |
1221 | end: | |
1222 | rewind(fp); | |
1223 | return ret; | |
1224 | } | |
1225 | ||
5c262147 MD |
1226 | /* |
1227 | * Returns 0 on success, -1 on error. | |
1228 | */ | |
1229 | static | |
1230 | int check_version(unsigned int major, unsigned int minor) | |
1231 | { | |
1232 | switch (major) { | |
1233 | case 1: | |
1234 | switch (minor) { | |
1235 | case 8: | |
1236 | return 0; | |
1237 | default: | |
1238 | goto warning; | |
1239 | } | |
1240 | default: | |
1241 | goto warning; | |
1242 | ||
1243 | } | |
1244 | ||
1245 | /* eventually return an error instead of warning */ | |
1246 | warning: | |
3394d22e | 1247 | fprintf(stderr, "[warning] Unsupported CTF specification version %u.%u. Trying anyway.\n", |
5c262147 MD |
1248 | major, minor); |
1249 | return 0; | |
1250 | } | |
1251 | ||
b4c19c1e | 1252 | static |
0c880b0a | 1253 | int ctf_trace_metadata_packet_read(struct ctf_trace *td, FILE *in, |
b4c19c1e MD |
1254 | FILE *out) |
1255 | { | |
1256 | struct metadata_packet_header header; | |
a0fe7d97 | 1257 | size_t readlen, writelen, toread; |
f8254867 | 1258 | char buf[4096 + 1]; /* + 1 for debug-mode \0 */ |
b4c19c1e MD |
1259 | int ret = 0; |
1260 | ||
a91a962e | 1261 | readlen = fread(&header, header_sizeof(header), 1, in); |
a0fe7d97 | 1262 | if (readlen < 1) |
b4c19c1e MD |
1263 | return -EINVAL; |
1264 | ||
1265 | if (td->byte_order != BYTE_ORDER) { | |
1266 | header.magic = GUINT32_SWAP_LE_BE(header.magic); | |
1267 | header.checksum = GUINT32_SWAP_LE_BE(header.checksum); | |
1268 | header.content_size = GUINT32_SWAP_LE_BE(header.content_size); | |
1269 | header.packet_size = GUINT32_SWAP_LE_BE(header.packet_size); | |
1270 | } | |
1271 | if (header.checksum) | |
3394d22e | 1272 | fprintf(stderr, "[warning] checksum verification not supported yet.\n"); |
b4c19c1e | 1273 | if (header.compression_scheme) { |
3394d22e | 1274 | fprintf(stderr, "[error] compression (%u) not supported yet.\n", |
b4c19c1e MD |
1275 | header.compression_scheme); |
1276 | return -EINVAL; | |
1277 | } | |
1278 | if (header.encryption_scheme) { | |
3394d22e | 1279 | fprintf(stderr, "[error] encryption (%u) not supported yet.\n", |
b4c19c1e MD |
1280 | header.encryption_scheme); |
1281 | return -EINVAL; | |
1282 | } | |
1283 | if (header.checksum_scheme) { | |
3394d22e | 1284 | fprintf(stderr, "[error] checksum (%u) not supported yet.\n", |
b4c19c1e MD |
1285 | header.checksum_scheme); |
1286 | return -EINVAL; | |
1287 | } | |
5c262147 MD |
1288 | if (check_version(header.major, header.minor) < 0) |
1289 | return -EINVAL; | |
b4c19c1e MD |
1290 | if (!CTF_TRACE_FIELD_IS_SET(td, uuid)) { |
1291 | memcpy(td->uuid, header.uuid, sizeof(header.uuid)); | |
1292 | CTF_TRACE_SET_FIELD(td, uuid); | |
1293 | } else { | |
72a3bc16 | 1294 | if (bt_uuid_compare(header.uuid, td->uuid)) |
b4c19c1e MD |
1295 | return -EINVAL; |
1296 | } | |
1297 | ||
b1ccd079 MD |
1298 | if ((header.content_size / CHAR_BIT) < header_sizeof(header)) |
1299 | return -EINVAL; | |
1300 | ||
255b2138 | 1301 | toread = (header.content_size / CHAR_BIT) - header_sizeof(header); |
a0fe7d97 MD |
1302 | |
1303 | for (;;) { | |
f8254867 | 1304 | readlen = fread(buf, sizeof(char), min(sizeof(buf) - 1, toread), in); |
b4c19c1e MD |
1305 | if (ferror(in)) { |
1306 | ret = -EINVAL; | |
1307 | break; | |
1308 | } | |
4152822b | 1309 | if (babeltrace_debug) { |
f8254867 | 1310 | buf[readlen] = '\0'; |
3394d22e | 1311 | fprintf(stderr, "[debug] metadata packet read: %s\n", |
4152822b MD |
1312 | buf); |
1313 | } | |
1314 | ||
b4c19c1e MD |
1315 | writelen = fwrite(buf, sizeof(char), readlen, out); |
1316 | if (writelen < readlen) { | |
1317 | ret = -EIO; | |
1318 | break; | |
1319 | } | |
1320 | if (ferror(out)) { | |
1321 | ret = -EINVAL; | |
1322 | break; | |
1323 | } | |
a0fe7d97 MD |
1324 | toread -= readlen; |
1325 | if (!toread) { | |
7f4b5c4d | 1326 | ret = 0; /* continue reading next packet */ |
ddbc52af | 1327 | goto read_padding; |
a0fe7d97 | 1328 | } |
b4c19c1e MD |
1329 | } |
1330 | return ret; | |
ddbc52af MD |
1331 | |
1332 | read_padding: | |
1333 | toread = (header.packet_size - header.content_size) / CHAR_BIT; | |
1334 | ret = fseek(in, toread, SEEK_CUR); | |
1335 | if (ret < 0) { | |
3394d22e | 1336 | fprintf(stderr, "[warning] Missing padding at end of file\n"); |
ddbc52af MD |
1337 | ret = 0; |
1338 | } | |
1339 | return ret; | |
b4c19c1e MD |
1340 | } |
1341 | ||
1342 | static | |
0c880b0a | 1343 | int ctf_trace_metadata_stream_read(struct ctf_trace *td, FILE **fp, |
b4c19c1e MD |
1344 | char **buf) |
1345 | { | |
1346 | FILE *in, *out; | |
abc40d24 | 1347 | size_t size, buflen; |
b4c19c1e MD |
1348 | int ret; |
1349 | ||
1350 | in = *fp; | |
c4f5487e MD |
1351 | /* |
1352 | * Using strlen on *buf instead of size of open_memstream | |
1353 | * because its size includes garbage at the end (after final | |
1354 | * \0). This is the allocated size, not the actual string size. | |
1355 | */ | |
f8370579 | 1356 | out = babeltrace_open_memstream(buf, &size); |
a569a564 MD |
1357 | if (out == NULL) { |
1358 | perror("Metadata open_memstream"); | |
b4c19c1e | 1359 | return -errno; |
a569a564 | 1360 | } |
b4c19c1e | 1361 | for (;;) { |
0c880b0a | 1362 | ret = ctf_trace_metadata_packet_read(td, in, out); |
7f4b5c4d | 1363 | if (ret) { |
b4c19c1e | 1364 | break; |
7f4b5c4d MD |
1365 | } |
1366 | if (feof(in)) { | |
1367 | ret = 0; | |
b4c19c1e MD |
1368 | break; |
1369 | } | |
1370 | } | |
f8370579 MD |
1371 | /* close to flush the buffer */ |
1372 | ret = babeltrace_close_memstream(buf, &size, out); | |
1373 | if (ret < 0) { | |
f824ae04 MD |
1374 | int closeret; |
1375 | ||
f8370579 | 1376 | perror("babeltrace_flush_memstream"); |
f824ae04 MD |
1377 | ret = -errno; |
1378 | closeret = fclose(in); | |
1379 | if (closeret) { | |
1380 | perror("Error in fclose"); | |
1381 | } | |
1382 | return ret; | |
1383 | } | |
1384 | ret = fclose(in); | |
1385 | if (ret) { | |
1386 | perror("Error in fclose"); | |
f8370579 | 1387 | } |
b4c19c1e | 1388 | /* open for reading */ |
abc40d24 MD |
1389 | buflen = strlen(*buf); |
1390 | if (!buflen) { | |
1391 | *fp = NULL; | |
493330cb | 1392 | return -ENOENT; |
abc40d24 MD |
1393 | } |
1394 | *fp = babeltrace_fmemopen(*buf, buflen, "rb"); | |
a569a564 MD |
1395 | if (!*fp) { |
1396 | perror("Metadata fmemopen"); | |
1397 | return -errno; | |
1398 | } | |
b4c19c1e MD |
1399 | return 0; |
1400 | } | |
1401 | ||
65102a8c | 1402 | static |
0c880b0a MD |
1403 | int ctf_trace_metadata_read(struct ctf_trace *td, FILE *metadata_fp, |
1404 | struct ctf_scanner *scanner, int append) | |
65102a8c | 1405 | { |
2d0bea29 | 1406 | struct ctf_file_stream *metadata_stream; |
65102a8c | 1407 | FILE *fp; |
b4c19c1e | 1408 | char *buf = NULL; |
f824ae04 | 1409 | int ret = 0, closeret; |
65102a8c | 1410 | |
2d0bea29 | 1411 | metadata_stream = g_new0(struct ctf_file_stream, 1); |
3a25e036 | 1412 | metadata_stream->pos.last_offset = LAST_OFFSET_POISON; |
b086c01a | 1413 | |
ae23d232 JD |
1414 | if (metadata_fp) { |
1415 | fp = metadata_fp; | |
bcbfb8bf | 1416 | metadata_stream->pos.fd = -1; |
ae23d232 JD |
1417 | } else { |
1418 | td->metadata = &metadata_stream->parent; | |
1419 | metadata_stream->pos.fd = openat(td->dirfd, "metadata", O_RDONLY); | |
1420 | if (metadata_stream->pos.fd < 0) { | |
3394d22e | 1421 | fprintf(stderr, "Unable to open metadata.\n"); |
f824ae04 MD |
1422 | ret = -1; |
1423 | goto end_free; | |
ae23d232 | 1424 | } |
65102a8c | 1425 | |
ae23d232 JD |
1426 | fp = fdopen(metadata_stream->pos.fd, "r"); |
1427 | if (!fp) { | |
3394d22e | 1428 | fprintf(stderr, "[error] Unable to open metadata stream.\n"); |
a569a564 | 1429 | perror("Metadata stream open"); |
ae23d232 JD |
1430 | ret = -errno; |
1431 | goto end_stream; | |
1432 | } | |
f824ae04 MD |
1433 | /* fd now belongs to fp */ |
1434 | metadata_stream->pos.fd = -1; | |
ae23d232 | 1435 | } |
65102a8c MD |
1436 | if (babeltrace_debug) |
1437 | yydebug = 1; | |
1438 | ||
b4c19c1e | 1439 | if (packet_metadata(td, fp)) { |
0c880b0a | 1440 | ret = ctf_trace_metadata_stream_read(td, &fp, &buf); |
abc40d24 | 1441 | if (ret) { |
6514b4af | 1442 | goto end; |
abc40d24 | 1443 | } |
7237592a MD |
1444 | td->metadata_string = buf; |
1445 | td->metadata_packetized = 1; | |
da75b0f7 | 1446 | } else { |
0c880b0a MD |
1447 | if (!append) { |
1448 | unsigned int major, minor; | |
1449 | ssize_t nr_items; | |
1450 | ||
1451 | td->byte_order = BYTE_ORDER; | |
1452 | ||
1453 | /* Check text-only metadata header and version */ | |
1454 | nr_items = fscanf(fp, "/* CTF %10u.%10u", &major, &minor); | |
1455 | if (nr_items < 2) | |
1456 | fprintf(stderr, "[warning] Ill-shapen or missing \"/* CTF x.y\" header for text-only metadata.\n"); | |
1457 | if (check_version(major, minor) < 0) { | |
1458 | ret = -EINVAL; | |
1459 | goto end; | |
1460 | } | |
1461 | rewind(fp); | |
5c262147 | 1462 | } |
b4c19c1e MD |
1463 | } |
1464 | ||
cb2f43ee | 1465 | ret = ctf_scanner_append_ast(scanner, fp); |
65102a8c | 1466 | if (ret) { |
3394d22e | 1467 | fprintf(stderr, "[error] Error creating AST\n"); |
65102a8c MD |
1468 | goto end; |
1469 | } | |
1470 | ||
1471 | if (babeltrace_debug) { | |
3394d22e | 1472 | ret = ctf_visitor_print_xml(stderr, 0, &scanner->ast->root); |
65102a8c | 1473 | if (ret) { |
3394d22e | 1474 | fprintf(stderr, "[error] Error visiting AST for XML output\n"); |
65102a8c MD |
1475 | goto end; |
1476 | } | |
1477 | } | |
1478 | ||
3394d22e | 1479 | ret = ctf_visitor_semantic_check(stderr, 0, &scanner->ast->root); |
65102a8c | 1480 | if (ret) { |
3394d22e | 1481 | fprintf(stderr, "[error] Error in CTF semantic validation %d\n", ret); |
65102a8c MD |
1482 | goto end; |
1483 | } | |
3394d22e | 1484 | ret = ctf_visitor_construct_metadata(stderr, 0, &scanner->ast->root, |
ac5c6ca0 | 1485 | td, td->byte_order); |
65102a8c | 1486 | if (ret) { |
3394d22e | 1487 | fprintf(stderr, "[error] Error in CTF metadata constructor %d\n", ret); |
65102a8c MD |
1488 | goto end; |
1489 | } | |
1490 | end: | |
f824ae04 MD |
1491 | if (fp) { |
1492 | closeret = fclose(fp); | |
1493 | if (closeret) { | |
1494 | perror("Error on fclose"); | |
1495 | } | |
1496 | } | |
65102a8c | 1497 | end_stream: |
f824ae04 MD |
1498 | if (metadata_stream->pos.fd >= 0) { |
1499 | closeret = close(metadata_stream->pos.fd); | |
1500 | if (closeret) { | |
1501 | perror("Error on metadata stream fd close"); | |
1502 | } | |
1503 | } | |
1504 | end_free: | |
2d0bea29 MD |
1505 | if (ret) |
1506 | g_free(metadata_stream); | |
0f980a35 MD |
1507 | return ret; |
1508 | } | |
1509 | ||
e28d4618 | 1510 | static |
c716f83b | 1511 | struct ctf_event_definition *create_event_definitions(struct ctf_trace *td, |
9e88d150 | 1512 | struct ctf_stream_definition *stream, |
4716614a | 1513 | struct ctf_event_declaration *event) |
e28d4618 | 1514 | { |
c716f83b | 1515 | struct ctf_event_definition *stream_event = g_new0(struct ctf_event_definition, 1); |
e28d4618 MD |
1516 | |
1517 | if (event->context_decl) { | |
0d69b916 | 1518 | struct bt_definition *definition = |
e28d4618 MD |
1519 | event->context_decl->p.definition_new(&event->context_decl->p, |
1520 | stream->parent_def_scope, 0, 0, "event.context"); | |
1521 | if (!definition) { | |
1522 | goto error; | |
1523 | } | |
42dc00b7 | 1524 | stream_event->event_context = container_of(definition, |
e28d4618 | 1525 | struct definition_struct, p); |
42dc00b7 | 1526 | stream->parent_def_scope = stream_event->event_context->p.scope; |
e28d4618 MD |
1527 | } |
1528 | if (event->fields_decl) { | |
0d69b916 | 1529 | struct bt_definition *definition = |
e28d4618 MD |
1530 | event->fields_decl->p.definition_new(&event->fields_decl->p, |
1531 | stream->parent_def_scope, 0, 0, "event.fields"); | |
1532 | if (!definition) { | |
1533 | goto error; | |
1534 | } | |
42dc00b7 | 1535 | stream_event->event_fields = container_of(definition, |
e28d4618 | 1536 | struct definition_struct, p); |
42dc00b7 | 1537 | stream->parent_def_scope = stream_event->event_fields->p.scope; |
e28d4618 | 1538 | } |
d3ded99d | 1539 | stream_event->stream = stream; |
42dc00b7 | 1540 | return stream_event; |
e28d4618 MD |
1541 | |
1542 | error: | |
42dc00b7 | 1543 | if (stream_event->event_fields) |
13fad8b6 | 1544 | bt_definition_unref(&stream_event->event_fields->p); |
42dc00b7 | 1545 | if (stream_event->event_context) |
13fad8b6 | 1546 | bt_definition_unref(&stream_event->event_context->p); |
888ec52a MD |
1547 | fprintf(stderr, "[error] Unable to create event definition for event \"%s\".\n", |
1548 | g_quark_to_string(event->name)); | |
e28d4618 MD |
1549 | return NULL; |
1550 | } | |
1551 | ||
0c880b0a MD |
1552 | static |
1553 | int copy_event_declarations_stream_class_to_stream(struct ctf_trace *td, | |
1554 | struct ctf_stream_declaration *stream_class, | |
1555 | struct ctf_stream_definition *stream) | |
1556 | { | |
1557 | size_t def_size, class_size, i; | |
1558 | int ret = 0; | |
1559 | ||
1560 | def_size = stream->events_by_id->len; | |
1561 | class_size = stream_class->events_by_id->len; | |
1562 | ||
1563 | g_ptr_array_set_size(stream->events_by_id, class_size); | |
1564 | for (i = def_size; i < class_size; i++) { | |
1565 | struct ctf_event_declaration *event = | |
1566 | g_ptr_array_index(stream_class->events_by_id, i); | |
1567 | struct ctf_event_definition *stream_event; | |
1568 | ||
1569 | if (!event) | |
1570 | continue; | |
1571 | stream_event = create_event_definitions(td, stream, event); | |
1572 | if (!stream_event) { | |
1573 | ret = -EINVAL; | |
1574 | goto error; | |
1575 | } | |
1576 | g_ptr_array_index(stream->events_by_id, i) = stream_event; | |
1577 | } | |
1578 | error: | |
1579 | return ret; | |
1580 | } | |
1581 | ||
e28d4618 | 1582 | static |
9e88d150 | 1583 | int create_stream_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream) |
e28d4618 | 1584 | { |
f380e105 | 1585 | struct ctf_stream_declaration *stream_class; |
e28d4618 MD |
1586 | int ret; |
1587 | int i; | |
1588 | ||
1589 | if (stream->stream_definitions_created) | |
1590 | return 0; | |
1591 | ||
1592 | stream_class = stream->stream_class; | |
1593 | ||
1594 | if (stream_class->packet_context_decl) { | |
0d69b916 | 1595 | struct bt_definition *definition = |
e28d4618 MD |
1596 | stream_class->packet_context_decl->p.definition_new(&stream_class->packet_context_decl->p, |
1597 | stream->parent_def_scope, 0, 0, "stream.packet.context"); | |
1598 | if (!definition) { | |
1599 | ret = -EINVAL; | |
1600 | goto error; | |
1601 | } | |
1602 | stream->stream_packet_context = container_of(definition, | |
1603 | struct definition_struct, p); | |
1604 | stream->parent_def_scope = stream->stream_packet_context->p.scope; | |
1605 | } | |
1606 | if (stream_class->event_header_decl) { | |
0d69b916 | 1607 | struct bt_definition *definition = |
e28d4618 MD |
1608 | stream_class->event_header_decl->p.definition_new(&stream_class->event_header_decl->p, |
1609 | stream->parent_def_scope, 0, 0, "stream.event.header"); | |
1610 | if (!definition) { | |
1611 | ret = -EINVAL; | |
1612 | goto error; | |
1613 | } | |
1614 | stream->stream_event_header = | |
1615 | container_of(definition, struct definition_struct, p); | |
1616 | stream->parent_def_scope = stream->stream_event_header->p.scope; | |
1617 | } | |
1618 | if (stream_class->event_context_decl) { | |
0d69b916 | 1619 | struct bt_definition *definition = |
e28d4618 MD |
1620 | stream_class->event_context_decl->p.definition_new(&stream_class->event_context_decl->p, |
1621 | stream->parent_def_scope, 0, 0, "stream.event.context"); | |
1622 | if (!definition) { | |
1623 | ret = -EINVAL; | |
1624 | goto error; | |
1625 | } | |
1626 | stream->stream_event_context = | |
1627 | container_of(definition, struct definition_struct, p); | |
1628 | stream->parent_def_scope = stream->stream_event_context->p.scope; | |
1629 | } | |
1630 | stream->events_by_id = g_ptr_array_new(); | |
0c880b0a MD |
1631 | ret = copy_event_declarations_stream_class_to_stream(td, |
1632 | stream_class, stream); | |
1633 | if (ret) | |
1634 | goto error_event; | |
e28d4618 MD |
1635 | return 0; |
1636 | ||
1637 | error_event: | |
1638 | for (i = 0; i < stream->events_by_id->len; i++) { | |
c716f83b | 1639 | struct ctf_event_definition *stream_event = g_ptr_array_index(stream->events_by_id, i); |
42dc00b7 MD |
1640 | if (stream_event) |
1641 | g_free(stream_event); | |
e28d4618 MD |
1642 | } |
1643 | g_ptr_array_free(stream->events_by_id, TRUE); | |
1644 | error: | |
1645 | if (stream->stream_event_context) | |
13fad8b6 | 1646 | bt_definition_unref(&stream->stream_event_context->p); |
e28d4618 | 1647 | if (stream->stream_event_header) |
13fad8b6 | 1648 | bt_definition_unref(&stream->stream_event_header->p); |
e28d4618 | 1649 | if (stream->stream_packet_context) |
13fad8b6 | 1650 | bt_definition_unref(&stream->stream_packet_context->p); |
888ec52a MD |
1651 | fprintf(stderr, "[error] Unable to create stream (%" PRIu64 ") definitions: %s\n", |
1652 | stream_class->stream_id, strerror(-ret)); | |
e28d4618 MD |
1653 | return ret; |
1654 | } | |
1655 | ||
5bfcad93 MD |
1656 | static |
1657 | int stream_assign_class(struct ctf_trace *td, | |
1658 | struct ctf_file_stream *file_stream, | |
1659 | uint64_t stream_id) | |
1660 | { | |
1661 | struct ctf_stream_declaration *stream; | |
1662 | int ret; | |
1663 | ||
1664 | file_stream->parent.stream_id = stream_id; | |
1665 | if (stream_id >= td->streams->len) { | |
1666 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); | |
1667 | return -EINVAL; | |
1668 | } | |
1669 | stream = g_ptr_array_index(td->streams, stream_id); | |
1670 | if (!stream) { | |
1671 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); | |
1672 | return -EINVAL; | |
1673 | } | |
1674 | file_stream->parent.stream_class = stream; | |
1675 | ret = create_stream_definitions(td, &file_stream->parent); | |
1676 | if (ret) | |
1677 | return ret; | |
1678 | return 0; | |
1679 | } | |
1680 | ||
0f980a35 | 1681 | static |
ec323464 MD |
1682 | int create_stream_one_packet_index(struct ctf_stream_pos *pos, |
1683 | struct ctf_trace *td, | |
1684 | struct ctf_file_stream *file_stream, | |
1685 | size_t filesize) | |
0f980a35 | 1686 | { |
ec323464 | 1687 | struct packet_index packet_index; |
ec323464 | 1688 | uint64_t stream_id = 0; |
653906a4 | 1689 | uint64_t packet_map_len = DEFAULT_HEADER_LEN, tmp_map_len; |
ec323464 | 1690 | int first_packet = 0; |
653906a4 | 1691 | int len_index; |
0f980a35 MD |
1692 | int ret; |
1693 | ||
ec323464 | 1694 | begin: |
5f75b32d | 1695 | memset(&packet_index, 0, sizeof(packet_index)); |
ec323464 MD |
1696 | if (!pos->mmap_offset) { |
1697 | first_packet = 1; | |
1698 | } | |
8895362d | 1699 | |
ec323464 MD |
1700 | if (filesize - pos->mmap_offset < (packet_map_len >> LOG2_CHAR_BIT)) { |
1701 | packet_map_len = (filesize - pos->mmap_offset) << LOG2_CHAR_BIT; | |
1702 | } | |
0f980a35 | 1703 | |
ec323464 MD |
1704 | if (pos->base_mma) { |
1705 | /* unmap old base */ | |
1706 | ret = munmap_align(pos->base_mma); | |
1707 | if (ret) { | |
1708 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", | |
1709 | strerror(errno)); | |
1710 | return ret; | |
0f980a35 | 1711 | } |
ec323464 MD |
1712 | pos->base_mma = NULL; |
1713 | } | |
1714 | /* map new base. Need mapping length from header. */ | |
1715 | pos->base_mma = mmap_align(packet_map_len >> LOG2_CHAR_BIT, PROT_READ, | |
1716 | MAP_PRIVATE, pos->fd, pos->mmap_offset); | |
1717 | assert(pos->base_mma != MAP_FAILED); | |
1718 | /* | |
1719 | * Use current mapping size as temporary content and packet | |
1720 | * size. | |
1721 | */ | |
1722 | pos->content_size = packet_map_len; | |
1723 | pos->packet_size = packet_map_len; | |
1724 | pos->offset = 0; /* Position of the packet header */ | |
1725 | ||
1726 | packet_index.offset = pos->mmap_offset; | |
ec323464 MD |
1727 | |
1728 | /* read and check header, set stream id (and check) */ | |
1729 | if (file_stream->parent.trace_packet_header) { | |
1730 | /* Read packet header */ | |
1731 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); | |
1732 | if (ret) { | |
1733 | if (ret == -EFAULT) | |
1734 | goto retry; | |
888ec52a | 1735 | fprintf(stderr, "[error] Unable to read packet header: %s\n", strerror(-ret)); |
ec323464 MD |
1736 | return ret; |
1737 | } | |
1738 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("magic")); | |
1739 | if (len_index >= 0) { | |
1740 | struct bt_definition *field; | |
1741 | uint64_t magic; | |
1742 | ||
1743 | field = bt_struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); | |
1744 | magic = bt_get_unsigned_int(field); | |
1745 | if (magic != CTF_MAGIC) { | |
1746 | fprintf(stderr, "[error] Invalid magic number 0x%" PRIX64 " at packet %u (file offset %zd).\n", | |
1747 | magic, | |
992e8cc0 | 1748 | file_stream->pos.packet_index->len, |
ec323464 MD |
1749 | (ssize_t) pos->mmap_offset); |
1750 | return -EINVAL; | |
0f980a35 | 1751 | } |
ec323464 | 1752 | } |
0f980a35 | 1753 | |
ec323464 MD |
1754 | /* check uuid */ |
1755 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("uuid")); | |
1756 | if (len_index >= 0) { | |
1757 | struct definition_array *defarray; | |
1758 | struct bt_definition *field; | |
1759 | uint64_t i; | |
1760 | uint8_t uuidval[BABELTRACE_UUID_LEN]; | |
0f980a35 | 1761 | |
ec323464 MD |
1762 | field = bt_struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
1763 | assert(field->declaration->id == CTF_TYPE_ARRAY); | |
1764 | defarray = container_of(field, struct definition_array, p); | |
1765 | assert(bt_array_len(defarray) == BABELTRACE_UUID_LEN); | |
0f980a35 | 1766 | |
ec323464 MD |
1767 | for (i = 0; i < BABELTRACE_UUID_LEN; i++) { |
1768 | struct bt_definition *elem; | |
0f980a35 | 1769 | |
ec323464 MD |
1770 | elem = bt_array_index(defarray, i); |
1771 | uuidval[i] = bt_get_unsigned_int(elem); | |
0f980a35 | 1772 | } |
72a3bc16 | 1773 | ret = bt_uuid_compare(td->uuid, uuidval); |
ec323464 MD |
1774 | if (ret) { |
1775 | fprintf(stderr, "[error] Unique Universal Identifiers do not match.\n"); | |
1776 | return -EINVAL; | |
1777 | } | |
1778 | } | |
0f980a35 | 1779 | |
ec323464 MD |
1780 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("stream_id")); |
1781 | if (len_index >= 0) { | |
1782 | struct bt_definition *field; | |
0f980a35 | 1783 | |
ec323464 MD |
1784 | field = bt_struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
1785 | stream_id = bt_get_unsigned_int(field); | |
0f980a35 | 1786 | } |
ec323464 | 1787 | } |
0f980a35 | 1788 | |
ec323464 MD |
1789 | if (!first_packet && file_stream->parent.stream_id != stream_id) { |
1790 | fprintf(stderr, "[error] Stream ID is changing within a stream: expecting %" PRIu64 ", but packet has %" PRIu64 "\n", | |
1791 | stream_id, | |
1792 | file_stream->parent.stream_id); | |
1793 | return -EINVAL; | |
1794 | } | |
1795 | if (first_packet) { | |
5bfcad93 | 1796 | ret = stream_assign_class(td, file_stream, stream_id); |
ec323464 MD |
1797 | if (ret) |
1798 | return ret; | |
1799 | } | |
dc48ecad | 1800 | |
ec323464 MD |
1801 | if (file_stream->parent.stream_packet_context) { |
1802 | /* Read packet context */ | |
1803 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); | |
1804 | if (ret) { | |
1805 | if (ret == -EFAULT) | |
1806 | goto retry; | |
888ec52a | 1807 | fprintf(stderr, "[error] Unable to read packet context: %s\n", strerror(-ret)); |
ec323464 MD |
1808 | return ret; |
1809 | } | |
95b34f38 MD |
1810 | /* read packet size from header */ |
1811 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("packet_size")); | |
ec323464 MD |
1812 | if (len_index >= 0) { |
1813 | struct bt_definition *field; | |
dc48ecad | 1814 | |
ec323464 | 1815 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
95b34f38 | 1816 | packet_index.packet_size = bt_get_unsigned_int(field); |
ec323464 MD |
1817 | } else { |
1818 | /* Use file size for packet size */ | |
95b34f38 | 1819 | packet_index.packet_size = filesize * CHAR_BIT; |
ec323464 | 1820 | } |
75cc2c35 | 1821 | |
95b34f38 MD |
1822 | /* read content size from header */ |
1823 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("content_size")); | |
ec323464 MD |
1824 | if (len_index >= 0) { |
1825 | struct bt_definition *field; | |
75cc2c35 | 1826 | |
ec323464 | 1827 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
95b34f38 | 1828 | packet_index.content_size = bt_get_unsigned_int(field); |
ec323464 | 1829 | } else { |
95b34f38 MD |
1830 | /* Use packet size if non-zero, else file size */ |
1831 | packet_index.content_size = packet_index.packet_size ? : filesize * CHAR_BIT; | |
ec323464 | 1832 | } |
41e82e00 | 1833 | |
ec323464 MD |
1834 | /* read timestamp begin from header */ |
1835 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_begin")); | |
1836 | if (len_index >= 0) { | |
1837 | struct bt_definition *field; | |
41e82e00 | 1838 | |
ec323464 | 1839 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
992e8cc0 | 1840 | packet_index.ts_cycles.timestamp_begin = bt_get_unsigned_int(field); |
4c62e2d8 | 1841 | if (file_stream->parent.stream_class->trace->parent.collection) { |
992e8cc0 | 1842 | packet_index.ts_real.timestamp_begin = |
ec323464 MD |
1843 | ctf_get_real_timestamp( |
1844 | &file_stream->parent, | |
992e8cc0 | 1845 | packet_index.ts_cycles.timestamp_begin); |
41e82e00 | 1846 | } |
0f980a35 | 1847 | } |
546293fa | 1848 | |
ec323464 MD |
1849 | /* read timestamp end from header */ |
1850 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_end")); | |
1851 | if (len_index >= 0) { | |
1852 | struct bt_definition *field; | |
1853 | ||
1854 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); | |
992e8cc0 | 1855 | packet_index.ts_cycles.timestamp_end = bt_get_unsigned_int(field); |
4c62e2d8 | 1856 | if (file_stream->parent.stream_class->trace->parent.collection) { |
992e8cc0 | 1857 | packet_index.ts_real.timestamp_end = |
ec323464 MD |
1858 | ctf_get_real_timestamp( |
1859 | &file_stream->parent, | |
992e8cc0 | 1860 | packet_index.ts_cycles.timestamp_end); |
ec323464 | 1861 | } |
546293fa MD |
1862 | } |
1863 | ||
ec323464 MD |
1864 | /* read events discarded from header */ |
1865 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("events_discarded")); | |
1866 | if (len_index >= 0) { | |
1867 | struct bt_definition *field; | |
1868 | ||
1869 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); | |
1870 | packet_index.events_discarded = bt_get_unsigned_int(field); | |
1871 | packet_index.events_discarded_len = bt_get_int_len(field); | |
546293fa | 1872 | } |
2328c2cd JD |
1873 | |
1874 | /* read packet_seq_num from header */ | |
1875 | len_index = bt_struct_declaration_lookup_field_index( | |
1876 | file_stream->parent.stream_packet_context->declaration, | |
1877 | g_quark_from_static_string("packet_seq_num")); | |
1878 | if (len_index >= 0) { | |
1879 | struct bt_definition *field; | |
1880 | ||
1881 | field = bt_struct_definition_get_field_from_index( | |
1882 | file_stream->parent.stream_packet_context, | |
1883 | len_index); | |
1884 | packet_index.packet_seq_num = bt_get_unsigned_int(field); | |
1885 | } | |
ec323464 MD |
1886 | } else { |
1887 | /* Use file size for packet size */ | |
2d686891 MD |
1888 | packet_index.packet_size = filesize * CHAR_BIT; |
1889 | /* Use packet size if non-zero, else file size */ | |
1890 | packet_index.content_size = packet_index.packet_size ? : filesize * CHAR_BIT; | |
ec323464 MD |
1891 | } |
1892 | ||
1893 | /* Validate content size and packet size values */ | |
1894 | if (packet_index.content_size > packet_index.packet_size) { | |
1895 | fprintf(stderr, "[error] Content size (%" PRIu64 " bits) is larger than packet size (%" PRIu64 " bits).\n", | |
1896 | packet_index.content_size, packet_index.packet_size); | |
1897 | return -EINVAL; | |
1898 | } | |
1899 | ||
1900 | if (packet_index.packet_size > ((uint64_t) filesize - packet_index.offset) * CHAR_BIT) { | |
1901 | fprintf(stderr, "[error] Packet size (%" PRIu64 " bits) is larger than remaining file size (%" PRIu64 " bits).\n", | |
1902 | packet_index.packet_size, ((uint64_t) filesize - packet_index.offset) * CHAR_BIT); | |
1903 | return -EINVAL; | |
1904 | } | |
546293fa | 1905 | |
a7ac9efd MD |
1906 | if (packet_index.content_size < pos->offset) { |
1907 | fprintf(stderr, "[error] Invalid CTF stream: content size is smaller than packet headers.\n"); | |
1908 | return -EINVAL; | |
1909 | } | |
1910 | ||
2d686891 MD |
1911 | if ((packet_index.packet_size >> LOG2_CHAR_BIT) == 0) { |
1912 | fprintf(stderr, "[error] Invalid CTF stream: packet size needs to be at least one byte\n"); | |
1913 | return -EINVAL; | |
1914 | } | |
1915 | ||
ec323464 MD |
1916 | /* Save position after header and context */ |
1917 | packet_index.data_offset = pos->offset; | |
0f980a35 | 1918 | |
ec323464 | 1919 | /* add index to packet array */ |
992e8cc0 | 1920 | g_array_append_val(file_stream->pos.packet_index, packet_index); |
0f980a35 | 1921 | |
ec323464 MD |
1922 | pos->mmap_offset += packet_index.packet_size >> LOG2_CHAR_BIT; |
1923 | ||
1924 | return 0; | |
1925 | ||
1926 | /* Retry with larger mapping */ | |
1927 | retry: | |
1928 | if (packet_map_len == ((filesize - pos->mmap_offset) << LOG2_CHAR_BIT)) { | |
1929 | /* | |
1930 | * Reached EOF, but still expecting header/context data. | |
1931 | */ | |
1932 | fprintf(stderr, "[error] Reached end of file, but still expecting header or context fields.\n"); | |
1933 | return -EFAULT; | |
1934 | } | |
1935 | /* Double the mapping len, and retry */ | |
1936 | tmp_map_len = packet_map_len << 1; | |
1937 | if (tmp_map_len >> 1 != packet_map_len) { | |
1938 | /* Overflow */ | |
888ec52a | 1939 | fprintf(stderr, "[error] Packet mapping length overflow\n"); |
ec323464 | 1940 | return -EFAULT; |
0f980a35 | 1941 | } |
ec323464 MD |
1942 | packet_map_len = tmp_map_len; |
1943 | goto begin; | |
1944 | } | |
1945 | ||
1946 | static | |
1947 | int create_stream_packet_index(struct ctf_trace *td, | |
1948 | struct ctf_file_stream *file_stream) | |
1949 | { | |
1950 | struct ctf_stream_pos *pos; | |
1951 | struct stat filestats; | |
1952 | int ret; | |
1953 | ||
1954 | pos = &file_stream->pos; | |
0f980a35 | 1955 | |
ec323464 MD |
1956 | ret = fstat(pos->fd, &filestats); |
1957 | if (ret < 0) | |
1958 | return ret; | |
1959 | ||
5bfcad93 MD |
1960 | /* Deal with empty files */ |
1961 | if (!filestats.st_size) { | |
1962 | if (file_stream->parent.trace_packet_header | |
1963 | || file_stream->parent.stream_packet_context) { | |
1964 | /* | |
1965 | * We expect a trace packet header and/or stream packet | |
1966 | * context. Since a trace needs to have at least one | |
1967 | * packet, empty files are therefore not accepted. | |
1968 | */ | |
1969 | fprintf(stderr, "[error] Encountered an empty file, but expecting a trace packet header.\n"); | |
1970 | return -EINVAL; | |
1971 | } else { | |
1972 | /* | |
1973 | * Without trace packet header nor stream packet | |
1974 | * context, a one-packet trace can indeed be empty. This | |
1975 | * is only valid if there is only one stream class: 0. | |
1976 | */ | |
1977 | ret = stream_assign_class(td, file_stream, 0); | |
1978 | if (ret) | |
1979 | return ret; | |
1980 | return 0; | |
1981 | } | |
1982 | } | |
1983 | ||
ec323464 MD |
1984 | for (pos->mmap_offset = 0; pos->mmap_offset < filestats.st_size; ) { |
1985 | ret = create_stream_one_packet_index(pos, td, file_stream, | |
1986 | filestats.st_size); | |
1987 | if (ret) | |
1988 | return ret; | |
1989 | } | |
0f980a35 MD |
1990 | return 0; |
1991 | } | |
1992 | ||
e28d4618 | 1993 | static |
9e88d150 | 1994 | int create_trace_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream) |
e28d4618 MD |
1995 | { |
1996 | int ret; | |
1997 | ||
1998 | if (td->packet_header_decl) { | |
0d69b916 | 1999 | struct bt_definition *definition = |
e28d4618 MD |
2000 | td->packet_header_decl->p.definition_new(&td->packet_header_decl->p, |
2001 | stream->parent_def_scope, 0, 0, "trace.packet.header"); | |
2002 | if (!definition) { | |
2003 | ret = -EINVAL; | |
2004 | goto error; | |
2005 | } | |
2006 | stream->trace_packet_header = | |
2007 | container_of(definition, struct definition_struct, p); | |
2008 | stream->parent_def_scope = stream->trace_packet_header->p.scope; | |
2009 | } | |
2010 | ||
2011 | return 0; | |
2012 | ||
2013 | error: | |
888ec52a | 2014 | fprintf(stderr, "[error] Unable to create trace definitions: %s\n", strerror(-ret)); |
e28d4618 MD |
2015 | return ret; |
2016 | } | |
2017 | ||
0ace7505 JD |
2018 | static |
2019 | int import_stream_packet_index(struct ctf_trace *td, | |
2020 | struct ctf_file_stream *file_stream) | |
2021 | { | |
0ace7505 | 2022 | struct ctf_stream_pos *pos; |
3ecd366e | 2023 | struct ctf_packet_index *ctf_index = NULL; |
0ace7505 JD |
2024 | struct ctf_packet_index_file_hdr index_hdr; |
2025 | struct packet_index index; | |
138cb20b | 2026 | uint32_t packet_index_len, index_minor; |
0ace7505 JD |
2027 | int ret = 0; |
2028 | int first_packet = 1; | |
2029 | size_t len; | |
2030 | ||
2031 | pos = &file_stream->pos; | |
2032 | ||
2033 | len = fread(&index_hdr, sizeof(index_hdr), 1, pos->index_fp); | |
2034 | if (len != 1) { | |
2035 | perror("read index file header"); | |
2036 | goto error; | |
2037 | } | |
2038 | ||
2039 | /* Check the index header */ | |
2040 | if (be32toh(index_hdr.magic) != CTF_INDEX_MAGIC) { | |
2041 | fprintf(stderr, "[error] wrong index magic\n"); | |
2042 | ret = -1; | |
2043 | goto error; | |
2044 | } | |
2045 | if (be32toh(index_hdr.index_major) != CTF_INDEX_MAJOR) { | |
f84c13d9 MJ |
2046 | fprintf(stderr, "[error] Incompatible index file %" PRIu32 |
2047 | ".%" PRIu32 ", supported %d.%d\n", | |
2048 | be32toh(index_hdr.index_major), | |
2049 | be32toh(index_hdr.index_minor), CTF_INDEX_MAJOR, | |
0ace7505 JD |
2050 | CTF_INDEX_MINOR); |
2051 | ret = -1; | |
2052 | goto error; | |
2053 | } | |
138cb20b JD |
2054 | index_minor = be32toh(index_hdr.index_minor); |
2055 | ||
e83ce12a JD |
2056 | packet_index_len = be32toh(index_hdr.packet_index_len); |
2057 | if (packet_index_len == 0) { | |
a74d9cb2 MD |
2058 | fprintf(stderr, "[error] Packet index length cannot be 0.\n"); |
2059 | ret = -1; | |
2060 | goto error; | |
2061 | } | |
3ecd366e MD |
2062 | /* |
2063 | * Allocate the index length found in header, not internal | |
2064 | * representation. | |
2065 | */ | |
e83ce12a JD |
2066 | ctf_index = g_malloc0(packet_index_len); |
2067 | while (fread(ctf_index, packet_index_len, 1, | |
ad40ac1a | 2068 | pos->index_fp) == 1) { |
0ace7505 | 2069 | uint64_t stream_id; |
51e0087f | 2070 | struct ctf_stream_declaration *stream = NULL; |
0ace7505 JD |
2071 | |
2072 | memset(&index, 0, sizeof(index)); | |
3ecd366e MD |
2073 | index.offset = be64toh(ctf_index->offset); |
2074 | index.packet_size = be64toh(ctf_index->packet_size); | |
2075 | index.content_size = be64toh(ctf_index->content_size); | |
2076 | index.ts_cycles.timestamp_begin = be64toh(ctf_index->timestamp_begin); | |
2077 | index.ts_cycles.timestamp_end = be64toh(ctf_index->timestamp_end); | |
2078 | index.events_discarded = be64toh(ctf_index->events_discarded); | |
0ace7505 | 2079 | index.events_discarded_len = 64; |
e69dd258 | 2080 | index.data_offset = -1; |
3ecd366e | 2081 | stream_id = be64toh(ctf_index->stream_id); |
138cb20b JD |
2082 | if (index_minor >= 1) { |
2083 | index.stream_instance_id = be64toh(ctf_index->stream_instance_id); | |
2084 | index.packet_seq_num = be64toh(ctf_index->packet_seq_num); | |
2085 | } | |
0ace7505 JD |
2086 | |
2087 | if (!first_packet) { | |
2088 | /* add index to packet array */ | |
992e8cc0 | 2089 | g_array_append_val(file_stream->pos.packet_index, index); |
0ace7505 JD |
2090 | continue; |
2091 | } | |
2092 | ||
2093 | file_stream->parent.stream_id = stream_id; | |
51e0087f JG |
2094 | if (stream_id < td->streams->len) { |
2095 | stream = g_ptr_array_index(td->streams, stream_id); | |
2096 | } | |
0ace7505 JD |
2097 | if (!stream) { |
2098 | fprintf(stderr, "[error] Stream %" PRIu64 | |
2099 | " is not declared in metadata.\n", | |
2100 | stream_id); | |
2101 | ret = -EINVAL; | |
2102 | goto error; | |
2103 | } | |
2104 | file_stream->parent.stream_class = stream; | |
2105 | ret = create_stream_definitions(td, &file_stream->parent); | |
2106 | if (ret) | |
2107 | goto error; | |
2108 | first_packet = 0; | |
2109 | /* add index to packet array */ | |
992e8cc0 | 2110 | g_array_append_val(file_stream->pos.packet_index, index); |
0ace7505 JD |
2111 | } |
2112 | ||
dae407df JD |
2113 | /* Index containing only the header. */ |
2114 | if (!file_stream->parent.stream_class) { | |
2115 | ret = -1; | |
2116 | goto error; | |
2117 | } | |
2118 | ||
0ace7505 JD |
2119 | ret = 0; |
2120 | ||
2121 | error: | |
3ecd366e | 2122 | g_free(ctf_index); |
0ace7505 JD |
2123 | return ret; |
2124 | } | |
2125 | ||
0f980a35 MD |
2126 | /* |
2127 | * Note: many file streams can inherit from the same stream class | |
2128 | * description (metadata). | |
2129 | */ | |
2130 | static | |
b086c01a | 2131 | int ctf_open_file_stream_read(struct ctf_trace *td, const char *path, int flags, |
1cf393f6 | 2132 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
b086c01a | 2133 | int whence)) |
0f980a35 | 2134 | { |
f824ae04 | 2135 | int ret, fd, closeret; |
0f980a35 | 2136 | struct ctf_file_stream *file_stream; |
ff075710 | 2137 | struct stat statbuf; |
0ace7505 | 2138 | char *index_name; |
0f980a35 | 2139 | |
ff075710 MD |
2140 | fd = openat(td->dirfd, path, flags); |
2141 | if (fd < 0) { | |
a569a564 | 2142 | perror("File stream openat()"); |
ff075710 | 2143 | ret = fd; |
0f980a35 | 2144 | goto error; |
a569a564 | 2145 | } |
ff075710 MD |
2146 | |
2147 | /* Don't try to mmap subdirectories. Skip them, return success. */ | |
2148 | ret = fstat(fd, &statbuf); | |
2149 | if (ret) { | |
2150 | perror("File stream fstat()"); | |
2151 | goto fstat_error; | |
2152 | } | |
2153 | if (S_ISDIR(statbuf.st_mode)) { | |
0ace7505 JD |
2154 | if (strncmp(path, "index", 5) != 0) { |
2155 | fprintf(stderr, "[warning] Skipping directory '%s' " | |
2156 | "found in trace\n", path); | |
2157 | } | |
ff075710 MD |
2158 | ret = 0; |
2159 | goto fd_is_dir_ok; | |
2160 | } | |
f4f0fb70 MD |
2161 | if (!statbuf.st_size) { |
2162 | /** Skip empty files. */ | |
2163 | ret = 0; | |
2164 | goto fd_is_empty_file; | |
2165 | } | |
ff075710 | 2166 | |
0f980a35 | 2167 | file_stream = g_new0(struct ctf_file_stream, 1); |
3a25e036 | 2168 | file_stream->pos.last_offset = LAST_OFFSET_POISON; |
0ace7505 JD |
2169 | file_stream->pos.fd = -1; |
2170 | file_stream->pos.index_fp = NULL; | |
b086c01a | 2171 | |
87148dc7 MD |
2172 | strncpy(file_stream->parent.path, path, PATH_MAX); |
2173 | file_stream->parent.path[PATH_MAX - 1] = '\0'; | |
2174 | ||
06789ffd MD |
2175 | if (packet_seek) { |
2176 | file_stream->pos.packet_seek = packet_seek; | |
b086c01a | 2177 | } else { |
06789ffd | 2178 | fprintf(stderr, "[error] packet_seek function undefined.\n"); |
b086c01a JD |
2179 | ret = -1; |
2180 | goto error_def; | |
2181 | } | |
2182 | ||
ca334c72 | 2183 | ret = ctf_init_pos(&file_stream->pos, &td->parent, fd, flags); |
f824ae04 MD |
2184 | if (ret) |
2185 | goto error_def; | |
2d0bea29 | 2186 | ret = create_trace_definitions(td, &file_stream->parent); |
e28d4618 MD |
2187 | if (ret) |
2188 | goto error_def; | |
25ccc85b | 2189 | /* |
50052405 | 2190 | * For now, only a single clock per trace is supported. |
25ccc85b | 2191 | */ |
7ec78969 | 2192 | file_stream->parent.current_clock = td->parent.single_clock; |
0ace7505 JD |
2193 | |
2194 | /* | |
2195 | * Allocate the index name for this stream and try to open it. | |
2196 | */ | |
2197 | index_name = malloc((strlen(path) + sizeof(INDEX_PATH)) * sizeof(char)); | |
2198 | if (!index_name) { | |
2199 | fprintf(stderr, "[error] Cannot allocate index filename\n"); | |
f4f0fb70 | 2200 | ret = -ENOMEM; |
0ace7505 | 2201 | goto error_def; |
888ec52a | 2202 | } |
0ace7505 JD |
2203 | snprintf(index_name, strlen(path) + sizeof(INDEX_PATH), |
2204 | INDEX_PATH, path); | |
2205 | ||
ff48c2b0 | 2206 | if (bt_faccessat(td->dirfd, td->parent.path, index_name, O_RDONLY, 0) < 0) { |
0ace7505 JD |
2207 | ret = create_stream_packet_index(td, file_stream); |
2208 | if (ret) { | |
2209 | fprintf(stderr, "[error] Stream index creation error.\n"); | |
2210 | goto error_index; | |
2211 | } | |
2212 | } else { | |
2213 | ret = openat(td->dirfd, index_name, flags); | |
2214 | if (ret < 0) { | |
2215 | perror("Index file openat()"); | |
2216 | ret = -1; | |
2217 | goto error_free; | |
2218 | } | |
2219 | file_stream->pos.index_fp = fdopen(ret, "r"); | |
2f0c6a52 MD |
2220 | if (!file_stream->pos.index_fp) { |
2221 | perror("fdopen() error"); | |
2222 | goto error_free; | |
2223 | } | |
0ace7505 JD |
2224 | ret = import_stream_packet_index(td, file_stream); |
2225 | if (ret) { | |
2226 | ret = -1; | |
2227 | goto error_index; | |
2228 | } | |
2229 | ret = fclose(file_stream->pos.index_fp); | |
2230 | if (ret < 0) { | |
2231 | perror("close index"); | |
2232 | goto error_free; | |
2233 | } | |
2234 | } | |
2235 | free(index_name); | |
2236 | ||
0f980a35 | 2237 | /* Add stream file to stream class */ |
2d0bea29 MD |
2238 | g_ptr_array_add(file_stream->parent.stream_class->streams, |
2239 | &file_stream->parent); | |
0f980a35 MD |
2240 | return 0; |
2241 | ||
2242 | error_index: | |
0ace7505 JD |
2243 | if (file_stream->pos.index_fp) { |
2244 | ret = fclose(file_stream->pos.index_fp); | |
2245 | if (ret < 0) { | |
2246 | perror("close index"); | |
2247 | } | |
2248 | } | |
2d0bea29 | 2249 | if (file_stream->parent.trace_packet_header) |
13fad8b6 | 2250 | bt_definition_unref(&file_stream->parent.trace_packet_header->p); |
0ace7505 JD |
2251 | error_free: |
2252 | free(index_name); | |
e28d4618 | 2253 | error_def: |
f824ae04 MD |
2254 | closeret = ctf_fini_pos(&file_stream->pos); |
2255 | if (closeret) { | |
2256 | fprintf(stderr, "Error on ctf_fini_pos\n"); | |
2257 | } | |
0f980a35 | 2258 | g_free(file_stream); |
f4f0fb70 | 2259 | fd_is_empty_file: |
ff075710 MD |
2260 | fd_is_dir_ok: |
2261 | fstat_error: | |
f824ae04 MD |
2262 | closeret = close(fd); |
2263 | if (closeret) { | |
2264 | perror("Error on fd close"); | |
2265 | } | |
0f980a35 | 2266 | error: |
65102a8c MD |
2267 | return ret; |
2268 | } | |
2269 | ||
bbefb8dd | 2270 | static |
5b80ddfb | 2271 | int ctf_open_trace_read(struct ctf_trace *td, |
8c250d87 | 2272 | const char *path, int flags, |
1cf393f6 | 2273 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
ae23d232 | 2274 | int whence), FILE *metadata_fp) |
bbefb8dd | 2275 | { |
6514b4af | 2276 | struct ctf_scanner *scanner; |
f824ae04 | 2277 | int ret, closeret; |
65102a8c MD |
2278 | struct dirent *dirent; |
2279 | struct dirent *diriter; | |
2280 | size_t dirent_len; | |
0ace7505 | 2281 | char *ext; |
bbefb8dd | 2282 | |
46322b33 | 2283 | td->flags = flags; |
bbefb8dd MD |
2284 | |
2285 | /* Open trace directory */ | |
46322b33 MD |
2286 | td->dir = opendir(path); |
2287 | if (!td->dir) { | |
6a6b384c | 2288 | fprintf(stderr, "[error] Unable to open trace directory \"%s\".\n", path); |
bbefb8dd MD |
2289 | ret = -ENOENT; |
2290 | goto error; | |
2291 | } | |
2292 | ||
46322b33 MD |
2293 | td->dirfd = open(path, 0); |
2294 | if (td->dirfd < 0) { | |
6a6b384c | 2295 | fprintf(stderr, "[error] Unable to open trace directory file descriptor for path \"%s\".\n", path); |
a569a564 MD |
2296 | perror("Trace directory open"); |
2297 | ret = -errno; | |
65102a8c MD |
2298 | goto error_dirfd; |
2299 | } | |
caf929fa MD |
2300 | strncpy(td->parent.path, path, sizeof(td->parent.path)); |
2301 | td->parent.path[sizeof(td->parent.path) - 1] = '\0'; | |
0f980a35 | 2302 | |
65102a8c MD |
2303 | /* |
2304 | * Keep the metadata file separate. | |
0c880b0a MD |
2305 | * Keep scanner object local to the open. We don't support |
2306 | * incremental metadata append for on-disk traces. | |
65102a8c | 2307 | */ |
6514b4af MD |
2308 | scanner = ctf_scanner_alloc(); |
2309 | if (!scanner) { | |
2310 | fprintf(stderr, "[error] Error allocating scanner\n"); | |
2311 | ret = -ENOMEM; | |
2312 | goto error_metadata; | |
2313 | } | |
0c880b0a | 2314 | ret = ctf_trace_metadata_read(td, metadata_fp, scanner, 0); |
6514b4af | 2315 | ctf_scanner_free(scanner); |
65102a8c | 2316 | if (ret) { |
251fc08c MD |
2317 | if (ret == -ENOENT) { |
2318 | fprintf(stderr, "[warning] Empty metadata.\n"); | |
2319 | } | |
6a6b384c | 2320 | fprintf(stderr, "[warning] Unable to open trace metadata for path \"%s\".\n", path); |
65102a8c MD |
2321 | goto error_metadata; |
2322 | } | |
bbefb8dd MD |
2323 | |
2324 | /* | |
2325 | * Open each stream: for each file, try to open, check magic | |
2326 | * number, and get the stream ID to add to the right location in | |
2327 | * the stream array. | |
bbefb8dd MD |
2328 | */ |
2329 | ||
65102a8c | 2330 | dirent_len = offsetof(struct dirent, d_name) + |
46322b33 | 2331 | fpathconf(td->dirfd, _PC_NAME_MAX) + 1; |
bbefb8dd | 2332 | |
65102a8c | 2333 | dirent = malloc(dirent_len); |
bbefb8dd | 2334 | |
65102a8c | 2335 | for (;;) { |
46322b33 | 2336 | ret = readdir_r(td->dir, dirent, &diriter); |
65102a8c | 2337 | if (ret) { |
3394d22e | 2338 | fprintf(stderr, "[error] Readdir error.\n"); |
65102a8c | 2339 | goto readdir_error; |
65102a8c MD |
2340 | } |
2341 | if (!diriter) | |
2342 | break; | |
d8ea2d29 MD |
2343 | /* Ignore hidden files, ., .. and metadata. */ |
2344 | if (!strncmp(diriter->d_name, ".", 1) | |
65102a8c MD |
2345 | || !strcmp(diriter->d_name, "..") |
2346 | || !strcmp(diriter->d_name, "metadata")) | |
2347 | continue; | |
0ace7505 JD |
2348 | |
2349 | /* Ignore index files : *.idx */ | |
2350 | ext = strrchr(diriter->d_name, '.'); | |
2351 | if (ext && (!strcmp(ext, ".idx"))) { | |
2352 | continue; | |
2353 | } | |
2354 | ||
06789ffd MD |
2355 | ret = ctf_open_file_stream_read(td, diriter->d_name, |
2356 | flags, packet_seek); | |
dc48ecad | 2357 | if (ret) { |
3394d22e | 2358 | fprintf(stderr, "[error] Open file stream error.\n"); |
dc48ecad MD |
2359 | goto readdir_error; |
2360 | } | |
65102a8c | 2361 | } |
bbefb8dd | 2362 | |
65102a8c | 2363 | free(dirent); |
bbefb8dd | 2364 | return 0; |
65102a8c MD |
2365 | |
2366 | readdir_error: | |
2367 | free(dirent); | |
2368 | error_metadata: | |
f824ae04 MD |
2369 | closeret = close(td->dirfd); |
2370 | if (closeret) { | |
2371 | perror("Error on fd close"); | |
2372 | } | |
65102a8c | 2373 | error_dirfd: |
f824ae04 MD |
2374 | closeret = closedir(td->dir); |
2375 | if (closeret) { | |
2376 | perror("Error on closedir"); | |
2377 | } | |
bbefb8dd MD |
2378 | error: |
2379 | return ret; | |
2380 | } | |
2381 | ||
03798a93 JD |
2382 | /* |
2383 | * ctf_open_trace: Open a CTF trace and index it. | |
2384 | * Note that the user must seek the trace after the open (using the iterator) | |
2385 | * since the index creation read it entirely. | |
2386 | */ | |
e9378815 | 2387 | static |
1b8455b7 | 2388 | struct bt_trace_descriptor *ctf_open_trace(const char *path, int flags, |
1cf393f6 | 2389 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
ae23d232 | 2390 | int whence), FILE *metadata_fp) |
bbefb8dd | 2391 | { |
46322b33 | 2392 | struct ctf_trace *td; |
bbefb8dd MD |
2393 | int ret; |
2394 | ||
2715de36 MD |
2395 | /* |
2396 | * If packet_seek is NULL, we provide our default version. | |
2397 | */ | |
2398 | if (!packet_seek) | |
2399 | packet_seek = ctf_packet_seek; | |
2400 | ||
46322b33 | 2401 | td = g_new0(struct ctf_trace, 1); |
837b0013 JG |
2402 | if (!td) { |
2403 | goto error; | |
2404 | } | |
2405 | init_trace_descriptor(&td->parent); | |
bbefb8dd | 2406 | |
8c572eba | 2407 | switch (flags & O_ACCMODE) { |
bbefb8dd | 2408 | case O_RDONLY: |
b61922b5 | 2409 | if (!path) { |
3394d22e | 2410 | fprintf(stderr, "[error] Path missing for input CTF trace.\n"); |
b61922b5 MD |
2411 | goto error; |
2412 | } | |
06789ffd | 2413 | ret = ctf_open_trace_read(td, path, flags, packet_seek, metadata_fp); |
bbefb8dd MD |
2414 | if (ret) |
2415 | goto error; | |
2416 | break; | |
989c73bc | 2417 | case O_RDWR: |
3394d22e | 2418 | fprintf(stderr, "[error] Opening CTF traces for output is not supported yet.\n"); |
46322b33 | 2419 | goto error; |
bbefb8dd | 2420 | default: |
3394d22e | 2421 | fprintf(stderr, "[error] Incorrect open flags.\n"); |
bbefb8dd MD |
2422 | goto error; |
2423 | } | |
2424 | ||
b5a8598f AB |
2425 | ret = trace_debug_info_create(td); |
2426 | if (ret) { | |
2427 | goto error; | |
2428 | } | |
2429 | ||
46322b33 | 2430 | return &td->parent; |
bbefb8dd | 2431 | error: |
80715793 MJ |
2432 | if (td) { |
2433 | trace_debug_info_destroy(td); | |
2434 | g_free(td); | |
2435 | } | |
bbefb8dd MD |
2436 | return NULL; |
2437 | } | |
2438 | ||
2e937fb4 | 2439 | static |
f571dfb1 | 2440 | void ctf_init_mmap_pos(struct ctf_stream_pos *pos, |
c150f912 | 2441 | struct bt_mmap_stream *mmap_info) |
f571dfb1 JD |
2442 | { |
2443 | pos->mmap_offset = 0; | |
2444 | pos->packet_size = 0; | |
2445 | pos->content_size = 0; | |
2446 | pos->content_size_loc = NULL; | |
2447 | pos->fd = mmap_info->fd; | |
aee35fcc | 2448 | pos->base_mma = NULL; |
f571dfb1 JD |
2449 | pos->offset = 0; |
2450 | pos->dummy = false; | |
2451 | pos->cur_index = 0; | |
f571dfb1 JD |
2452 | pos->prot = PROT_READ; |
2453 | pos->flags = MAP_PRIVATE; | |
2454 | pos->parent.rw_table = read_dispatch_table; | |
2455 | pos->parent.event_cb = ctf_read_event; | |
731087d8 | 2456 | pos->priv = mmap_info->priv; |
f1f52630 MD |
2457 | pos->packet_index = g_array_new(FALSE, TRUE, |
2458 | sizeof(struct packet_index)); | |
f571dfb1 JD |
2459 | } |
2460 | ||
2461 | static | |
2462 | int prepare_mmap_stream_definition(struct ctf_trace *td, | |
fb6b45aa JD |
2463 | struct ctf_file_stream *file_stream, |
2464 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, | |
2465 | int whence)) | |
f571dfb1 | 2466 | { |
f380e105 | 2467 | struct ctf_stream_declaration *stream; |
fb6b45aa | 2468 | uint64_t stream_id; |
f571dfb1 JD |
2469 | int ret; |
2470 | ||
fb6b45aa JD |
2471 | /* Ask for the first packet to get the stream_id. */ |
2472 | packet_seek(&file_stream->pos.parent, 0, SEEK_SET); | |
2473 | stream_id = file_stream->parent.stream_id; | |
f571dfb1 | 2474 | if (stream_id >= td->streams->len) { |
3394d22e | 2475 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared " |
f571dfb1 JD |
2476 | "in metadata.\n", stream_id); |
2477 | ret = -EINVAL; | |
2478 | goto end; | |
2479 | } | |
2480 | stream = g_ptr_array_index(td->streams, stream_id); | |
2481 | if (!stream) { | |
3394d22e | 2482 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared " |
f571dfb1 JD |
2483 | "in metadata.\n", stream_id); |
2484 | ret = -EINVAL; | |
2485 | goto end; | |
2486 | } | |
2487 | file_stream->parent.stream_class = stream; | |
2488 | ret = create_stream_definitions(td, &file_stream->parent); | |
2489 | end: | |
2490 | return ret; | |
2491 | } | |
2492 | ||
2493 | static | |
2494 | int ctf_open_mmap_stream_read(struct ctf_trace *td, | |
c150f912 | 2495 | struct bt_mmap_stream *mmap_info, |
1cf393f6 | 2496 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
f571dfb1 JD |
2497 | int whence)) |
2498 | { | |
2499 | int ret; | |
2500 | struct ctf_file_stream *file_stream; | |
2501 | ||
2502 | file_stream = g_new0(struct ctf_file_stream, 1); | |
fb6b45aa | 2503 | file_stream->parent.stream_id = -1ULL; |
3a25e036 | 2504 | file_stream->pos.last_offset = LAST_OFFSET_POISON; |
f571dfb1 JD |
2505 | ctf_init_mmap_pos(&file_stream->pos, mmap_info); |
2506 | ||
06789ffd | 2507 | file_stream->pos.packet_seek = packet_seek; |
f571dfb1 JD |
2508 | |
2509 | ret = create_trace_definitions(td, &file_stream->parent); | |
2510 | if (ret) { | |
2511 | goto error_def; | |
2512 | } | |
2513 | ||
fb6b45aa | 2514 | ret = prepare_mmap_stream_definition(td, file_stream, packet_seek); |
f571dfb1 JD |
2515 | if (ret) |
2516 | goto error_index; | |
2517 | ||
f7bbd502 | 2518 | /* |
50052405 | 2519 | * For now, only a single clock per trace is supported. |
f7bbd502 | 2520 | */ |
7ec78969 | 2521 | file_stream->parent.current_clock = td->parent.single_clock; |
f7bbd502 | 2522 | |
f571dfb1 JD |
2523 | /* Add stream file to stream class */ |
2524 | g_ptr_array_add(file_stream->parent.stream_class->streams, | |
2525 | &file_stream->parent); | |
2526 | return 0; | |
2527 | ||
2528 | error_index: | |
2529 | if (file_stream->parent.trace_packet_header) | |
13fad8b6 | 2530 | bt_definition_unref(&file_stream->parent.trace_packet_header->p); |
f571dfb1 JD |
2531 | error_def: |
2532 | g_free(file_stream); | |
2533 | return ret; | |
2534 | } | |
2535 | ||
2e937fb4 | 2536 | static |
f571dfb1 | 2537 | int ctf_open_mmap_trace_read(struct ctf_trace *td, |
c150f912 | 2538 | struct bt_mmap_stream_list *mmap_list, |
1cf393f6 | 2539 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
f571dfb1 JD |
2540 | int whence), |
2541 | FILE *metadata_fp) | |
2542 | { | |
2543 | int ret; | |
c150f912 | 2544 | struct bt_mmap_stream *mmap_info; |
f571dfb1 | 2545 | |
0c880b0a MD |
2546 | td->scanner = ctf_scanner_alloc(); |
2547 | if (!td->scanner) { | |
6514b4af MD |
2548 | fprintf(stderr, "[error] Error allocating scanner\n"); |
2549 | ret = -ENOMEM; | |
0c880b0a | 2550 | goto error; |
6514b4af | 2551 | } |
0c880b0a | 2552 | ret = ctf_trace_metadata_read(td, metadata_fp, td->scanner, 0); |
f571dfb1 | 2553 | if (ret) { |
251fc08c MD |
2554 | if (ret == -ENOENT) { |
2555 | fprintf(stderr, "[warning] Empty metadata.\n"); | |
2556 | } | |
f571dfb1 JD |
2557 | goto error; |
2558 | } | |
2559 | ||
2560 | /* | |
2561 | * for each stream, try to open, check magic number, and get the | |
2562 | * stream ID to add to the right location in the stream array. | |
2563 | */ | |
3122e6f0 | 2564 | bt_list_for_each_entry(mmap_info, &mmap_list->head, list) { |
06789ffd | 2565 | ret = ctf_open_mmap_stream_read(td, mmap_info, packet_seek); |
f571dfb1 | 2566 | if (ret) { |
3394d22e | 2567 | fprintf(stderr, "[error] Open file mmap stream error.\n"); |
f571dfb1 JD |
2568 | goto error; |
2569 | } | |
2570 | } | |
f571dfb1 JD |
2571 | return 0; |
2572 | ||
2573 | error: | |
0c880b0a | 2574 | ctf_scanner_free(td->scanner); |
f571dfb1 JD |
2575 | return ret; |
2576 | } | |
2577 | ||
2578 | static | |
1b8455b7 | 2579 | struct bt_trace_descriptor *ctf_open_mmap_trace( |
c150f912 | 2580 | struct bt_mmap_stream_list *mmap_list, |
1cf393f6 | 2581 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
20d0dcf9 | 2582 | int whence), |
f571dfb1 JD |
2583 | FILE *metadata_fp) |
2584 | { | |
2585 | struct ctf_trace *td; | |
2586 | int ret; | |
2587 | ||
2588 | if (!metadata_fp) { | |
2589 | fprintf(stderr, "[error] No metadata file pointer associated, " | |
2590 | "required for mmap parsing\n"); | |
2591 | goto error; | |
2592 | } | |
06789ffd MD |
2593 | if (!packet_seek) { |
2594 | fprintf(stderr, "[error] packet_seek function undefined.\n"); | |
f571dfb1 JD |
2595 | goto error; |
2596 | } | |
2597 | td = g_new0(struct ctf_trace, 1); | |
b5a1fa45 | 2598 | td->dirfd = -1; |
06789ffd | 2599 | ret = ctf_open_mmap_trace_read(td, mmap_list, packet_seek, metadata_fp); |
f571dfb1 JD |
2600 | if (ret) |
2601 | goto error_free; | |
2602 | ||
b5a8598f AB |
2603 | ret = trace_debug_info_create(td); |
2604 | if (ret) { | |
2605 | goto error_free; | |
2606 | } | |
2607 | ||
f571dfb1 JD |
2608 | return &td->parent; |
2609 | ||
2610 | error_free: | |
2611 | g_free(td); | |
2612 | error: | |
2613 | return NULL; | |
2614 | } | |
2615 | ||
0c880b0a MD |
2616 | int ctf_append_trace_metadata(struct bt_trace_descriptor *tdp, |
2617 | FILE *metadata_fp) | |
2618 | { | |
2619 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); | |
2620 | int i, j; | |
2621 | int ret; | |
2622 | ||
2623 | if (!td->scanner) | |
2624 | return -EINVAL; | |
2625 | ret = ctf_trace_metadata_read(td, metadata_fp, td->scanner, 1); | |
2626 | if (ret) | |
2627 | return ret; | |
2628 | /* for each stream_class */ | |
2629 | for (i = 0; i < td->streams->len; i++) { | |
2630 | struct ctf_stream_declaration *stream_class; | |
2631 | ||
2632 | stream_class = g_ptr_array_index(td->streams, i); | |
2633 | if (!stream_class) | |
2634 | continue; | |
2635 | /* for each stream */ | |
2636 | for (j = 0; j < stream_class->streams->len; j++) { | |
2637 | struct ctf_stream_definition *stream; | |
2638 | ||
2639 | stream = g_ptr_array_index(stream_class->streams, j); | |
2640 | if (!stream) | |
2641 | continue; | |
2642 | ret = copy_event_declarations_stream_class_to_stream(td, | |
2643 | stream_class, stream); | |
2644 | if (ret) | |
2645 | return ret; | |
2646 | } | |
2647 | } | |
2648 | return 0; | |
2649 | } | |
2650 | ||
03798a93 | 2651 | static |
1b8455b7 | 2652 | int ctf_convert_index_timestamp(struct bt_trace_descriptor *tdp) |
03798a93 JD |
2653 | { |
2654 | int i, j, k; | |
2655 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); | |
2656 | ||
2657 | /* for each stream_class */ | |
2658 | for (i = 0; i < td->streams->len; i++) { | |
2659 | struct ctf_stream_declaration *stream_class; | |
2660 | ||
2661 | stream_class = g_ptr_array_index(td->streams, i); | |
2662 | if (!stream_class) | |
2663 | continue; | |
2664 | /* for each file_stream */ | |
2665 | for (j = 0; j < stream_class->streams->len; j++) { | |
2666 | struct ctf_stream_definition *stream; | |
2667 | struct ctf_stream_pos *stream_pos; | |
2668 | struct ctf_file_stream *cfs; | |
2669 | ||
2670 | stream = g_ptr_array_index(stream_class->streams, j); | |
2671 | if (!stream) | |
2672 | continue; | |
2673 | cfs = container_of(stream, struct ctf_file_stream, | |
2674 | parent); | |
2675 | stream_pos = &cfs->pos; | |
992e8cc0 | 2676 | if (!stream_pos->packet_index) |
afe9cd4a JD |
2677 | continue; |
2678 | ||
992e8cc0 | 2679 | for (k = 0; k < stream_pos->packet_index->len; k++) { |
03798a93 | 2680 | struct packet_index *index; |
03798a93 | 2681 | |
992e8cc0 | 2682 | index = &g_array_index(stream_pos->packet_index, |
03798a93 | 2683 | struct packet_index, k); |
992e8cc0 | 2684 | index->ts_real.timestamp_begin = |
03798a93 | 2685 | ctf_get_real_timestamp(stream, |
992e8cc0 MD |
2686 | index->ts_cycles.timestamp_begin); |
2687 | index->ts_real.timestamp_end = | |
03798a93 | 2688 | ctf_get_real_timestamp(stream, |
992e8cc0 | 2689 | index->ts_cycles.timestamp_end); |
03798a93 JD |
2690 | } |
2691 | } | |
2692 | } | |
2693 | return 0; | |
2694 | } | |
2695 | ||
0f980a35 | 2696 | static |
f824ae04 | 2697 | int ctf_close_file_stream(struct ctf_file_stream *file_stream) |
0f980a35 | 2698 | { |
f824ae04 MD |
2699 | int ret; |
2700 | ||
2701 | ret = ctf_fini_pos(&file_stream->pos); | |
2702 | if (ret) { | |
2703 | fprintf(stderr, "Error on ctf_fini_pos\n"); | |
2704 | return -1; | |
2705 | } | |
500634be JD |
2706 | if (file_stream->pos.fd >= 0) { |
2707 | ret = close(file_stream->pos.fd); | |
2708 | if (ret) { | |
2709 | perror("Error closing file fd"); | |
2710 | return -1; | |
2711 | } | |
f824ae04 MD |
2712 | } |
2713 | return 0; | |
0f980a35 MD |
2714 | } |
2715 | ||
e9378815 | 2716 | static |
1b8455b7 | 2717 | int ctf_close_trace(struct bt_trace_descriptor *tdp) |
bbefb8dd | 2718 | { |
46322b33 | 2719 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); |
08c82b90 | 2720 | int ret; |
0f980a35 | 2721 | |
46322b33 | 2722 | if (td->streams) { |
08c82b90 MD |
2723 | int i; |
2724 | ||
46322b33 | 2725 | for (i = 0; i < td->streams->len; i++) { |
f380e105 | 2726 | struct ctf_stream_declaration *stream; |
0f980a35 | 2727 | int j; |
e9378815 | 2728 | |
46322b33 | 2729 | stream = g_ptr_array_index(td->streams, i); |
e9378815 MD |
2730 | if (!stream) |
2731 | continue; | |
2d0bea29 | 2732 | for (j = 0; j < stream->streams->len; j++) { |
0f980a35 | 2733 | struct ctf_file_stream *file_stream; |
15d4fe3c JD |
2734 | file_stream = container_of(g_ptr_array_index(stream->streams, j), |
2735 | struct ctf_file_stream, parent); | |
f824ae04 MD |
2736 | ret = ctf_close_file_stream(file_stream); |
2737 | if (ret) | |
2738 | return ret; | |
0f980a35 | 2739 | } |
e003ab50 | 2740 | } |
e003ab50 | 2741 | } |
15d4fe3c | 2742 | ctf_destroy_metadata(td); |
0c880b0a | 2743 | ctf_scanner_free(td->scanner); |
500634be JD |
2744 | if (td->dirfd >= 0) { |
2745 | ret = close(td->dirfd); | |
2746 | if (ret) { | |
2747 | perror("Error closing dirfd"); | |
2748 | return ret; | |
2749 | } | |
f824ae04 | 2750 | } |
500634be JD |
2751 | if (td->dir) { |
2752 | ret = closedir(td->dir); | |
2753 | if (ret) { | |
2754 | perror("Error closedir"); | |
2755 | return ret; | |
2756 | } | |
f824ae04 | 2757 | } |
7237592a | 2758 | free(td->metadata_string); |
b5a8598f | 2759 | trace_debug_info_destroy(td); |
bbefb8dd | 2760 | g_free(td); |
f824ae04 | 2761 | return 0; |
bbefb8dd MD |
2762 | } |
2763 | ||
98a04903 | 2764 | static |
1b8455b7 | 2765 | void ctf_set_context(struct bt_trace_descriptor *descriptor, |
98a04903 JD |
2766 | struct bt_context *ctx) |
2767 | { | |
2768 | struct ctf_trace *td = container_of(descriptor, struct ctf_trace, | |
2769 | parent); | |
2770 | ||
45807148 | 2771 | td->parent.ctx = ctx; |
98a04903 JD |
2772 | } |
2773 | ||
2774 | static | |
1b8455b7 | 2775 | void ctf_set_handle(struct bt_trace_descriptor *descriptor, |
98a04903 JD |
2776 | struct bt_trace_handle *handle) |
2777 | { | |
2778 | struct ctf_trace *td = container_of(descriptor, struct ctf_trace, | |
2779 | parent); | |
2780 | ||
4d086981 | 2781 | td->parent.handle = handle; |
98a04903 JD |
2782 | } |
2783 | ||
95febab3 | 2784 | static |
7fb21036 | 2785 | void __attribute__((constructor)) ctf_init(void) |
fc93b2bd MD |
2786 | { |
2787 | int ret; | |
2788 | ||
4c8bfb7e | 2789 | ctf_format.name = g_quark_from_static_string("ctf"); |
fc93b2bd MD |
2790 | ret = bt_register_format(&ctf_format); |
2791 | assert(!ret); | |
2792 | } | |
698f0fe4 | 2793 | |
95febab3 MD |
2794 | static |
2795 | void __attribute__((destructor)) ctf_exit(void) | |
2796 | { | |
2797 | bt_unregister_format(&ctf_format); | |
2798 | } |