Commit | Line | Data |
---|---|---|
fc93b2bd MD |
1 | /* |
2 | * BabelTrace - Common Trace Format (CTF) | |
3 | * | |
4 | * Format registration. | |
5 | * | |
64fa3fec MD |
6 | * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation |
7 | * | |
8 | * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
fc93b2bd | 9 | * |
ccd7e1c8 MD |
10 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
11 | * of this software and associated documentation files (the "Software"), to deal | |
12 | * in the Software without restriction, including without limitation the rights | |
13 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
14 | * copies of the Software, and to permit persons to whom the Software is | |
15 | * furnished to do so, subject to the following conditions: | |
fc93b2bd | 16 | * |
ccd7e1c8 MD |
17 | * The above copyright notice and this permission notice shall be included in |
18 | * all copies or substantial portions of the Software. | |
c462e188 MD |
19 | * |
20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
21 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
23 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
24 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
25 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
26 | * SOFTWARE. | |
fc93b2bd MD |
27 | */ |
28 | ||
29 | #include <babeltrace/format.h> | |
30 | #include <babeltrace/ctf/types.h> | |
bbefb8dd | 31 | #include <babeltrace/ctf/metadata.h> |
70bd0a12 | 32 | #include <babeltrace/babeltrace-internal.h> |
e4195791 | 33 | #include <babeltrace/ctf/events-internal.h> |
98a04903 JD |
34 | #include <babeltrace/trace-handle-internal.h> |
35 | #include <babeltrace/context-internal.h> | |
4cb26dfb | 36 | #include <babeltrace/compat/uuid.h> |
43e34335 | 37 | #include <babeltrace/endian.h> |
0ace7505 | 38 | #include <babeltrace/ctf/ctf-index.h> |
0f980a35 | 39 | #include <inttypes.h> |
b4c19c1e | 40 | #include <stdio.h> |
0f980a35 | 41 | #include <sys/mman.h> |
bbefb8dd | 42 | #include <errno.h> |
bbefb8dd | 43 | #include <sys/types.h> |
65102a8c | 44 | #include <sys/stat.h> |
bbefb8dd | 45 | #include <fcntl.h> |
65102a8c | 46 | #include <dirent.h> |
bbefb8dd | 47 | #include <glib.h> |
65102a8c MD |
48 | #include <unistd.h> |
49 | #include <stdlib.h> | |
50 | ||
65102a8c MD |
51 | #include "metadata/ctf-scanner.h" |
52 | #include "metadata/ctf-parser.h" | |
53 | #include "metadata/ctf-ast.h" | |
c34ea0fa | 54 | #include "events-private.h" |
68ef7952 | 55 | #include <babeltrace/compat/memstream.h> |
a323afb2 | 56 | #include <babeltrace/compat/fcntl.h> |
65102a8c | 57 | |
ec323464 MD |
58 | #define LOG2_CHAR_BIT 3 |
59 | ||
60 | /* | |
61 | * Length of first attempt at mapping a packet header, in bits. | |
62 | */ | |
63 | #define DEFAULT_HEADER_LEN (getpagesize() * CHAR_BIT) | |
64 | ||
0f980a35 | 65 | /* |
ec323464 | 66 | * Lenght of packet to write, in bits. |
0f980a35 | 67 | */ |
8c572eba | 68 | #define WRITE_PACKET_LEN (getpagesize() * 8 * CHAR_BIT) |
0f980a35 | 69 | |
a0fe7d97 MD |
70 | #ifndef min |
71 | #define min(a, b) (((a) < (b)) ? (a) : (b)) | |
72 | #endif | |
73 | ||
61cf588b | 74 | #define NSEC_PER_SEC 1000000000LL |
7d97fad9 | 75 | |
0ace7505 JD |
76 | #define INDEX_PATH "./index/%s.idx" |
77 | ||
03798a93 | 78 | int opt_clock_cycles, |
7d97fad9 MD |
79 | opt_clock_seconds, |
80 | opt_clock_date, | |
81 | opt_clock_gmt; | |
82 | ||
61cf588b MD |
83 | int64_t opt_clock_offset; |
84 | int64_t opt_clock_offset_ns; | |
7d97fad9 | 85 | |
65102a8c | 86 | extern int yydebug; |
bbefb8dd | 87 | |
2654fe9b MD |
88 | /* |
89 | * TODO: babeltrace_ctf_console_output ensures that we only print | |
90 | * discarded events when ctf-text plugin is used. Should be cleaned up | |
91 | * with the plugin system redesign. | |
92 | */ | |
93 | int babeltrace_ctf_console_output; | |
94 | ||
e9378815 | 95 | static |
1b8455b7 | 96 | struct bt_trace_descriptor *ctf_open_trace(const char *path, int flags, |
1cf393f6 | 97 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
20d0dcf9 MD |
98 | int whence), |
99 | FILE *metadata_fp); | |
e9378815 | 100 | static |
1b8455b7 | 101 | struct bt_trace_descriptor *ctf_open_mmap_trace( |
c150f912 | 102 | struct bt_mmap_stream_list *mmap_list, |
1cf393f6 | 103 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
20d0dcf9 | 104 | int whence), |
f571dfb1 | 105 | FILE *metadata_fp); |
98a04903 | 106 | static |
1b8455b7 | 107 | void ctf_set_context(struct bt_trace_descriptor *descriptor, |
98a04903 JD |
108 | struct bt_context *ctx); |
109 | static | |
1b8455b7 | 110 | void ctf_set_handle(struct bt_trace_descriptor *descriptor, |
98a04903 | 111 | struct bt_trace_handle *handle); |
f571dfb1 JD |
112 | |
113 | static | |
1b8455b7 | 114 | int ctf_close_trace(struct bt_trace_descriptor *descriptor); |
30c276af | 115 | static |
61cf588b MD |
116 | int ctf_timestamp_begin(struct bt_trace_descriptor *descriptor, |
117 | struct bt_trace_handle *handle, enum bt_clock_type type, | |
118 | int64_t *timestamp); | |
30c276af | 119 | static |
61cf588b MD |
120 | int ctf_timestamp_end(struct bt_trace_descriptor *descriptor, |
121 | struct bt_trace_handle *handle, enum bt_clock_type type, | |
122 | int64_t *timestamp); | |
03798a93 | 123 | static |
1b8455b7 | 124 | int ctf_convert_index_timestamp(struct bt_trace_descriptor *tdp); |
fc93b2bd | 125 | |
1ae19169 MD |
126 | static |
127 | rw_dispatch read_dispatch_table[] = { | |
9a19a512 PP |
128 | [ BT_CTF_TYPE_ID_INTEGER ] = ctf_integer_read, |
129 | [ BT_CTF_TYPE_ID_FLOAT ] = ctf_float_read, | |
130 | [ BT_CTF_TYPE_ID_ENUM ] = ctf_enum_read, | |
131 | [ BT_CTF_TYPE_ID_STRING ] = ctf_string_read, | |
132 | [ BT_CTF_TYPE_ID_STRUCT ] = ctf_struct_rw, | |
133 | [ BT_CTF_TYPE_ID_VARIANT ] = ctf_variant_rw, | |
134 | [ BT_CTF_TYPE_ID_ARRAY ] = ctf_array_read, | |
135 | [ BT_CTF_TYPE_ID_SEQUENCE ] = ctf_sequence_read, | |
d11e9c49 MD |
136 | }; |
137 | ||
1ae19169 MD |
138 | static |
139 | rw_dispatch write_dispatch_table[] = { | |
9a19a512 PP |
140 | [ BT_CTF_TYPE_ID_INTEGER ] = ctf_integer_write, |
141 | [ BT_CTF_TYPE_ID_FLOAT ] = ctf_float_write, | |
142 | [ BT_CTF_TYPE_ID_ENUM ] = ctf_enum_write, | |
143 | [ BT_CTF_TYPE_ID_STRING ] = ctf_string_write, | |
144 | [ BT_CTF_TYPE_ID_STRUCT ] = ctf_struct_rw, | |
145 | [ BT_CTF_TYPE_ID_VARIANT ] = ctf_variant_rw, | |
146 | [ BT_CTF_TYPE_ID_ARRAY ] = ctf_array_write, | |
147 | [ BT_CTF_TYPE_ID_SEQUENCE ] = ctf_sequence_write, | |
d11e9c49 MD |
148 | }; |
149 | ||
1ae19169 | 150 | static |
37b99bdb | 151 | struct bt_format ctf_format = { |
bbefb8dd | 152 | .open_trace = ctf_open_trace, |
f571dfb1 | 153 | .open_mmap_trace = ctf_open_mmap_trace, |
bbefb8dd | 154 | .close_trace = ctf_close_trace, |
98a04903 JD |
155 | .set_context = ctf_set_context, |
156 | .set_handle = ctf_set_handle, | |
30c276af JD |
157 | .timestamp_begin = ctf_timestamp_begin, |
158 | .timestamp_end = ctf_timestamp_end, | |
03798a93 | 159 | .convert_index_timestamp = ctf_convert_index_timestamp, |
fc93b2bd MD |
160 | }; |
161 | ||
30c276af | 162 | static |
61cf588b MD |
163 | int ctf_timestamp_begin(struct bt_trace_descriptor *descriptor, |
164 | struct bt_trace_handle *handle, enum bt_clock_type type, | |
165 | int64_t *timestamp) | |
30c276af JD |
166 | { |
167 | struct ctf_trace *tin; | |
61cf588b MD |
168 | int64_t begin = LLONG_MAX; |
169 | int i, j, ret; | |
30c276af JD |
170 | |
171 | tin = container_of(descriptor, struct ctf_trace, parent); | |
172 | ||
61cf588b MD |
173 | if (!tin || !timestamp) { |
174 | ret = -EINVAL; | |
30c276af | 175 | goto error; |
61cf588b | 176 | } |
30c276af JD |
177 | |
178 | /* for each stream_class */ | |
179 | for (i = 0; i < tin->streams->len; i++) { | |
180 | struct ctf_stream_declaration *stream_class; | |
181 | ||
182 | stream_class = g_ptr_array_index(tin->streams, i); | |
1b01ffc2 MD |
183 | if (!stream_class) |
184 | continue; | |
30c276af JD |
185 | /* for each file_stream */ |
186 | for (j = 0; j < stream_class->streams->len; j++) { | |
187 | struct ctf_stream_definition *stream; | |
188 | struct ctf_file_stream *cfs; | |
189 | struct ctf_stream_pos *stream_pos; | |
190 | struct packet_index *index; | |
191 | ||
192 | stream = g_ptr_array_index(stream_class->streams, j); | |
193 | cfs = container_of(stream, struct ctf_file_stream, | |
194 | parent); | |
195 | stream_pos = &cfs->pos; | |
196 | ||
61cf588b MD |
197 | if (!stream_pos->packet_index) { |
198 | ret = -EINVAL; | |
03798a93 | 199 | goto error; |
61cf588b | 200 | } |
03798a93 | 201 | |
992e8cc0 | 202 | if (stream_pos->packet_index->len <= 0) |
afe9cd4a JD |
203 | continue; |
204 | ||
992e8cc0 MD |
205 | index = &g_array_index(stream_pos->packet_index, |
206 | struct packet_index, | |
207 | stream_pos->packet_index->len - 1); | |
03798a93 | 208 | if (type == BT_CLOCK_REAL) { |
992e8cc0 MD |
209 | if (index->ts_real.timestamp_begin < begin) |
210 | begin = index->ts_real.timestamp_begin; | |
03798a93 | 211 | } else if (type == BT_CLOCK_CYCLES) { |
992e8cc0 MD |
212 | if (index->ts_cycles.timestamp_begin < begin) |
213 | begin = index->ts_cycles.timestamp_begin; | |
03798a93 | 214 | } else { |
61cf588b | 215 | ret = -EINVAL; |
03798a93 JD |
216 | goto error; |
217 | } | |
30c276af JD |
218 | } |
219 | } | |
61cf588b MD |
220 | if (begin == LLONG_MAX) { |
221 | ret = -ENOENT; | |
222 | goto error; | |
223 | } | |
224 | *timestamp = begin; | |
225 | return 0; | |
30c276af JD |
226 | |
227 | error: | |
61cf588b | 228 | return ret; |
30c276af JD |
229 | } |
230 | ||
231 | static | |
61cf588b MD |
232 | int ctf_timestamp_end(struct bt_trace_descriptor *descriptor, |
233 | struct bt_trace_handle *handle, enum bt_clock_type type, | |
234 | int64_t *timestamp) | |
30c276af JD |
235 | { |
236 | struct ctf_trace *tin; | |
61cf588b MD |
237 | int64_t end = LLONG_MIN; |
238 | int i, j, ret; | |
30c276af JD |
239 | |
240 | tin = container_of(descriptor, struct ctf_trace, parent); | |
241 | ||
61cf588b MD |
242 | if (!tin || !timestamp) { |
243 | ret = -EINVAL; | |
30c276af | 244 | goto error; |
61cf588b | 245 | } |
30c276af JD |
246 | |
247 | /* for each stream_class */ | |
248 | for (i = 0; i < tin->streams->len; i++) { | |
249 | struct ctf_stream_declaration *stream_class; | |
250 | ||
251 | stream_class = g_ptr_array_index(tin->streams, i); | |
1b01ffc2 MD |
252 | if (!stream_class) |
253 | continue; | |
30c276af JD |
254 | /* for each file_stream */ |
255 | for (j = 0; j < stream_class->streams->len; j++) { | |
256 | struct ctf_stream_definition *stream; | |
257 | struct ctf_file_stream *cfs; | |
258 | struct ctf_stream_pos *stream_pos; | |
259 | struct packet_index *index; | |
260 | ||
261 | stream = g_ptr_array_index(stream_class->streams, j); | |
262 | cfs = container_of(stream, struct ctf_file_stream, | |
263 | parent); | |
264 | stream_pos = &cfs->pos; | |
265 | ||
61cf588b MD |
266 | if (!stream_pos->packet_index) { |
267 | ret = -EINVAL; | |
03798a93 | 268 | goto error; |
61cf588b | 269 | } |
03798a93 | 270 | |
992e8cc0 | 271 | if (stream_pos->packet_index->len <= 0) |
afe9cd4a JD |
272 | continue; |
273 | ||
992e8cc0 MD |
274 | index = &g_array_index(stream_pos->packet_index, |
275 | struct packet_index, | |
276 | stream_pos->packet_index->len - 1); | |
03798a93 | 277 | if (type == BT_CLOCK_REAL) { |
992e8cc0 MD |
278 | if (index->ts_real.timestamp_end > end) |
279 | end = index->ts_real.timestamp_end; | |
03798a93 | 280 | } else if (type == BT_CLOCK_CYCLES) { |
992e8cc0 MD |
281 | if (index->ts_cycles.timestamp_end > end) |
282 | end = index->ts_cycles.timestamp_end; | |
03798a93 | 283 | } else { |
61cf588b | 284 | ret = -EINVAL; |
03798a93 JD |
285 | goto error; |
286 | } | |
30c276af JD |
287 | } |
288 | } | |
61cf588b MD |
289 | if (end == LLONG_MIN) { |
290 | ret = -ENOENT; | |
291 | goto error; | |
292 | } | |
293 | *timestamp = end; | |
294 | return 0; | |
30c276af JD |
295 | |
296 | error: | |
61cf588b | 297 | return ret; |
30c276af JD |
298 | } |
299 | ||
25ccc85b | 300 | /* |
03798a93 | 301 | * Update stream current timestamp |
25ccc85b | 302 | */ |
2b9a764d | 303 | static |
9e88d150 | 304 | void ctf_update_timestamp(struct ctf_stream_definition *stream, |
2b9a764d MD |
305 | struct definition_integer *integer_definition) |
306 | { | |
307 | struct declaration_integer *integer_declaration = | |
308 | integer_definition->declaration; | |
309 | uint64_t oldval, newval, updateval; | |
310 | ||
7f3f572b | 311 | if (unlikely(integer_declaration->len == 64)) { |
03798a93 | 312 | stream->cycles_timestamp = integer_definition->value._unsigned; |
03798a93 JD |
313 | stream->real_timestamp = ctf_get_real_timestamp(stream, |
314 | stream->cycles_timestamp); | |
2b9a764d MD |
315 | return; |
316 | } | |
317 | /* keep low bits */ | |
03798a93 | 318 | oldval = stream->cycles_timestamp; |
2b9a764d MD |
319 | oldval &= (1ULL << integer_declaration->len) - 1; |
320 | newval = integer_definition->value._unsigned; | |
321 | /* Test for overflow by comparing low bits */ | |
322 | if (newval < oldval) | |
323 | newval += 1ULL << integer_declaration->len; | |
324 | /* updateval contains old high bits, and new low bits (sum) */ | |
03798a93 | 325 | updateval = stream->cycles_timestamp; |
2b9a764d MD |
326 | updateval &= ~((1ULL << integer_declaration->len) - 1); |
327 | updateval += newval; | |
03798a93 JD |
328 | stream->cycles_timestamp = updateval; |
329 | ||
330 | /* convert to real timestamp */ | |
03798a93 JD |
331 | stream->real_timestamp = ctf_get_real_timestamp(stream, |
332 | stream->cycles_timestamp); | |
2b9a764d MD |
333 | } |
334 | ||
25ccc85b MD |
335 | /* |
336 | * Print timestamp, rescaling clock frequency to nanoseconds and | |
337 | * applying offsets as needed (unix time). | |
338 | */ | |
2e937fb4 | 339 | static |
03798a93 | 340 | void ctf_print_timestamp_real(FILE *fp, |
9e88d150 | 341 | struct ctf_stream_definition *stream, |
61cf588b | 342 | int64_t timestamp) |
7d97fad9 | 343 | { |
61cf588b MD |
344 | int64_t ts_sec = 0, ts_nsec; |
345 | uint64_t ts_sec_abs, ts_nsec_abs; | |
346 | bool is_negative; | |
7d97fad9 | 347 | |
03798a93 | 348 | ts_nsec = timestamp; |
7d97fad9 | 349 | |
61cf588b | 350 | /* Add command-line offset in ns */ |
65923160 IJ |
351 | ts_nsec += opt_clock_offset_ns; |
352 | ||
c34ea0fa | 353 | /* Add command-line offset */ |
7d97fad9 MD |
354 | ts_sec += opt_clock_offset; |
355 | ||
356 | ts_sec += ts_nsec / NSEC_PER_SEC; | |
357 | ts_nsec = ts_nsec % NSEC_PER_SEC; | |
61cf588b MD |
358 | if (ts_sec >= 0 && ts_nsec >= 0) { |
359 | is_negative = false; | |
360 | ts_sec_abs = ts_sec; | |
361 | ts_nsec_abs = ts_nsec; | |
362 | } else if (ts_sec > 0 && ts_nsec < 0) { | |
363 | is_negative = false; | |
364 | ts_sec_abs = ts_sec - 1; | |
365 | ts_nsec_abs = NSEC_PER_SEC + ts_nsec; | |
366 | } else if (ts_sec == 0 && ts_nsec < 0) { | |
367 | is_negative = true; | |
368 | ts_sec_abs = ts_sec; | |
369 | ts_nsec_abs = -ts_nsec; | |
370 | } else if (ts_sec < 0 && ts_nsec > 0) { | |
371 | is_negative = true; | |
372 | ts_sec_abs = -(ts_sec + 1); | |
373 | ts_nsec_abs = NSEC_PER_SEC - ts_nsec; | |
374 | } else if (ts_sec < 0 && ts_nsec == 0) { | |
375 | is_negative = true; | |
376 | ts_sec_abs = -ts_sec; | |
377 | ts_nsec_abs = ts_nsec; | |
378 | } else { /* (ts_sec < 0 && ts_nsec < 0) */ | |
379 | is_negative = true; | |
380 | ts_sec_abs = -ts_sec; | |
381 | ts_nsec_abs = -ts_nsec; | |
382 | } | |
7d97fad9 MD |
383 | |
384 | if (!opt_clock_seconds) { | |
385 | struct tm tm; | |
61cf588b MD |
386 | time_t time_s = (time_t) ts_sec_abs; |
387 | ||
388 | if (is_negative) { | |
a0960c1c | 389 | fprintf(stderr, "[warning] Fallback to [sec.ns] to print negative time value. Use --clock-seconds.\n"); |
61cf588b MD |
390 | goto seconds; |
391 | } | |
7d97fad9 MD |
392 | |
393 | if (!opt_clock_gmt) { | |
394 | struct tm *res; | |
395 | ||
396 | res = localtime_r(&time_s, &tm); | |
397 | if (!res) { | |
398 | fprintf(stderr, "[warning] Unable to get localtime.\n"); | |
399 | goto seconds; | |
400 | } | |
401 | } else { | |
402 | struct tm *res; | |
403 | ||
404 | res = gmtime_r(&time_s, &tm); | |
405 | if (!res) { | |
406 | fprintf(stderr, "[warning] Unable to get gmtime.\n"); | |
407 | goto seconds; | |
408 | } | |
409 | } | |
410 | if (opt_clock_date) { | |
411 | char timestr[26]; | |
412 | size_t res; | |
413 | ||
414 | /* Print date and time */ | |
415 | res = strftime(timestr, sizeof(timestr), | |
416 | "%F ", &tm); | |
417 | if (!res) { | |
418 | fprintf(stderr, "[warning] Unable to print ascii time.\n"); | |
419 | goto seconds; | |
420 | } | |
421 | fprintf(fp, "%s", timestr); | |
422 | } | |
423 | /* Print time in HH:MM:SS.ns */ | |
424 | fprintf(fp, "%02d:%02d:%02d.%09" PRIu64, | |
61cf588b | 425 | tm.tm_hour, tm.tm_min, tm.tm_sec, ts_nsec_abs); |
7d97fad9 MD |
426 | goto end; |
427 | } | |
428 | seconds: | |
61cf588b MD |
429 | fprintf(fp, "%s%" PRId64 ".%09" PRIu64, |
430 | is_negative ? "-" : "", ts_sec_abs, ts_nsec_abs); | |
7d97fad9 MD |
431 | |
432 | end: | |
433 | return; | |
434 | } | |
435 | ||
03798a93 JD |
436 | /* |
437 | * Print timestamp, in cycles | |
438 | */ | |
2e937fb4 | 439 | static |
03798a93 JD |
440 | void ctf_print_timestamp_cycles(FILE *fp, |
441 | struct ctf_stream_definition *stream, | |
442 | uint64_t timestamp) | |
443 | { | |
444 | fprintf(fp, "%020" PRIu64, timestamp); | |
445 | } | |
446 | ||
447 | void ctf_print_timestamp(FILE *fp, | |
448 | struct ctf_stream_definition *stream, | |
61cf588b | 449 | int64_t timestamp) |
03798a93 JD |
450 | { |
451 | if (opt_clock_cycles) { | |
452 | ctf_print_timestamp_cycles(fp, stream, timestamp); | |
453 | } else { | |
454 | ctf_print_timestamp_real(fp, stream, timestamp); | |
455 | } | |
456 | } | |
457 | ||
87148dc7 MD |
458 | static |
459 | void print_uuid(FILE *fp, unsigned char *uuid) | |
460 | { | |
461 | int i; | |
462 | ||
463 | for (i = 0; i < BABELTRACE_UUID_LEN; i++) | |
464 | fprintf(fp, "%x", (unsigned int) uuid[i]); | |
465 | } | |
466 | ||
2654fe9b MD |
467 | /* |
468 | * Discarded events can be either: | |
469 | * - discarded after end of previous buffer due to buffer full: | |
470 | * happened within range: [ prev_timestamp_end, timestamp_begin ] | |
471 | * - discarded within current buffer due to either event too large or | |
472 | * nested wrap-around: | |
473 | * happened within range: [ timestamp_begin, timestamp_end ] | |
474 | * | |
475 | * Given we have discarded counters of those two types merged into the | |
476 | * events_discarded counter, we need to use the union of those ranges: | |
477 | * [ prev_timestamp_end, timestamp_end ] | |
6246fd54 JD |
478 | * |
479 | * Lost packets occur if the tracer overwrote some subbuffer(s) before the | |
480 | * consumer had time to extract them. We keep track of those gaps with the | |
481 | * packet sequence number in each packet. | |
2654fe9b MD |
482 | */ |
483 | static | |
6246fd54 | 484 | void ctf_print_discarded_lost(FILE *fp, struct ctf_stream_definition *stream) |
87148dc7 | 485 | { |
6246fd54 JD |
486 | if ((!stream->events_discarded && !stream->packets_lost) || |
487 | !babeltrace_ctf_console_output) { | |
2654fe9b MD |
488 | return; |
489 | } | |
490 | fflush(stdout); | |
6246fd54 JD |
491 | if (stream->events_discarded) { |
492 | fprintf(fp, "[warning] Tracer discarded %" PRIu64 " events between [", | |
493 | stream->events_discarded); | |
494 | } else if (stream->packets_lost) { | |
495 | fprintf(fp, "[warning] Tracer lost %" PRIu64 " trace packets between [", | |
496 | stream->packets_lost); | |
497 | } | |
87148dc7 MD |
498 | if (opt_clock_cycles) { |
499 | ctf_print_timestamp(fp, stream, | |
2654fe9b | 500 | stream->prev.cycles.end); |
87148dc7 MD |
501 | fprintf(fp, "] and ["); |
502 | ctf_print_timestamp(fp, stream, | |
2654fe9b | 503 | stream->current.cycles.end); |
87148dc7 MD |
504 | } else { |
505 | ctf_print_timestamp(fp, stream, | |
2654fe9b | 506 | stream->prev.real.end); |
87148dc7 MD |
507 | fprintf(fp, "] and ["); |
508 | ctf_print_timestamp(fp, stream, | |
2654fe9b | 509 | stream->current.real.end); |
87148dc7 MD |
510 | } |
511 | fprintf(fp, "] in trace UUID "); | |
512 | print_uuid(fp, stream->stream_class->trace->uuid); | |
caf929fa | 513 | if (stream->stream_class->trace->parent.path[0]) |
87148dc7 | 514 | fprintf(fp, ", at path: \"%s\"", |
caf929fa | 515 | stream->stream_class->trace->parent.path); |
87148dc7 MD |
516 | |
517 | fprintf(fp, ", within stream id %" PRIu64, stream->stream_id); | |
518 | if (stream->path[0]) | |
519 | fprintf(fp, ", at relative path: \"%s\"", stream->path); | |
520 | fprintf(fp, ". "); | |
521 | fprintf(fp, "You should consider recording a new trace with larger " | |
522 | "buffers or with fewer events enabled.\n"); | |
523 | fflush(fp); | |
524 | } | |
525 | ||
31262354 | 526 | static |
1cf393f6 | 527 | int ctf_read_event(struct bt_stream_pos *ppos, struct ctf_stream_definition *stream) |
31262354 MD |
528 | { |
529 | struct ctf_stream_pos *pos = | |
530 | container_of(ppos, struct ctf_stream_pos, parent); | |
f380e105 | 531 | struct ctf_stream_declaration *stream_class = stream->stream_class; |
c716f83b | 532 | struct ctf_event_definition *event; |
31262354 | 533 | uint64_t id = 0; |
31262354 MD |
534 | int ret; |
535 | ||
3abe83c7 MD |
536 | /* We need to check for EOF here for empty files. */ |
537 | if (unlikely(pos->offset == EOF)) | |
538 | return EOF; | |
539 | ||
5f643ed7 MD |
540 | ctf_pos_get_event(pos); |
541 | ||
90fcbacc JD |
542 | /* save the current position as a restore point */ |
543 | pos->last_offset = pos->offset; | |
90fcbacc | 544 | |
3abe83c7 MD |
545 | /* |
546 | * This is the EOF check after we've advanced the position in | |
547 | * ctf_pos_get_event. | |
548 | */ | |
7f3f572b | 549 | if (unlikely(pos->offset == EOF)) |
31262354 | 550 | return EOF; |
8793d9f8 | 551 | |
500634be JD |
552 | /* Stream is inactive for now (live reading). */ |
553 | if (unlikely(pos->content_size == 0)) | |
8793d9f8 | 554 | return EAGAIN; |
500634be JD |
555 | |
556 | /* | |
557 | * Packet seeked to by ctf_pos_get_event() only contains | |
558 | * headers, no event. Consider stream as inactive (live | |
559 | * reading). | |
560 | */ | |
561 | if (unlikely(pos->data_offset == pos->content_size)) | |
a5260047 JD |
562 | return EAGAIN; |
563 | ||
5f643ed7 | 564 | assert(pos->offset < pos->content_size); |
31262354 MD |
565 | |
566 | /* Read event header */ | |
7f3f572b | 567 | if (likely(stream->stream_event_header)) { |
a35173fe | 568 | struct definition_integer *integer_definition; |
0d69b916 | 569 | struct bt_definition *variant; |
a35173fe | 570 | |
e28d4618 | 571 | ret = generic_rw(ppos, &stream->stream_event_header->p); |
7f3f572b | 572 | if (unlikely(ret)) |
31262354 MD |
573 | goto error; |
574 | /* lookup event id */ | |
bf78e2cf | 575 | integer_definition = bt_lookup_integer(&stream->stream_event_header->p, "id", FALSE); |
a35173fe MD |
576 | if (integer_definition) { |
577 | id = integer_definition->value._unsigned; | |
578 | } else { | |
579 | struct definition_enum *enum_definition; | |
580 | ||
9e3274b0 | 581 | enum_definition = bt_lookup_enum(&stream->stream_event_header->p, "id", FALSE); |
a35173fe MD |
582 | if (enum_definition) { |
583 | id = enum_definition->integer->value._unsigned; | |
584 | } | |
31262354 | 585 | } |
764af3f4 | 586 | |
ebae302b | 587 | variant = bt_lookup_variant(&stream->stream_event_header->p, "v"); |
ccdb988e | 588 | if (variant) { |
bf78e2cf | 589 | integer_definition = bt_lookup_integer(variant, "id", FALSE); |
ccdb988e MD |
590 | if (integer_definition) { |
591 | id = integer_definition->value._unsigned; | |
592 | } | |
593 | } | |
c87a8eb2 | 594 | stream->event_id = id; |
ccdb988e | 595 | |
764af3f4 | 596 | /* lookup timestamp */ |
5e2eb0ae | 597 | stream->has_timestamp = 0; |
bf78e2cf | 598 | integer_definition = bt_lookup_integer(&stream->stream_event_header->p, "timestamp", FALSE); |
a35173fe | 599 | if (integer_definition) { |
2b9a764d | 600 | ctf_update_timestamp(stream, integer_definition); |
5e2eb0ae | 601 | stream->has_timestamp = 1; |
a35173fe | 602 | } else { |
ccdb988e | 603 | if (variant) { |
bf78e2cf | 604 | integer_definition = bt_lookup_integer(variant, "timestamp", FALSE); |
a35173fe | 605 | if (integer_definition) { |
2b9a764d | 606 | ctf_update_timestamp(stream, integer_definition); |
5e2eb0ae | 607 | stream->has_timestamp = 1; |
a35173fe MD |
608 | } |
609 | } | |
764af3f4 | 610 | } |
31262354 MD |
611 | } |
612 | ||
613 | /* Read stream-declared event context */ | |
e28d4618 MD |
614 | if (stream->stream_event_context) { |
615 | ret = generic_rw(ppos, &stream->stream_event_context->p); | |
31262354 MD |
616 | if (ret) |
617 | goto error; | |
618 | } | |
619 | ||
7f3f572b | 620 | if (unlikely(id >= stream_class->events_by_id->len)) { |
3394d22e | 621 | fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id); |
31262354 MD |
622 | return -EINVAL; |
623 | } | |
e28d4618 | 624 | event = g_ptr_array_index(stream->events_by_id, id); |
7f3f572b | 625 | if (unlikely(!event)) { |
3394d22e | 626 | fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id); |
31262354 MD |
627 | return -EINVAL; |
628 | } | |
629 | ||
630 | /* Read event-declared event context */ | |
e28d4618 MD |
631 | if (event->event_context) { |
632 | ret = generic_rw(ppos, &event->event_context->p); | |
31262354 MD |
633 | if (ret) |
634 | goto error; | |
635 | } | |
636 | ||
637 | /* Read event payload */ | |
7f3f572b | 638 | if (likely(event->event_fields)) { |
e28d4618 | 639 | ret = generic_rw(ppos, &event->event_fields->p); |
31262354 MD |
640 | if (ret) |
641 | goto error; | |
642 | } | |
643 | ||
28f35f0a MD |
644 | if (pos->last_offset == pos->offset) { |
645 | fprintf(stderr, "[error] Invalid 0 byte event encountered.\n"); | |
646 | return -EINVAL; | |
647 | } | |
648 | ||
31262354 MD |
649 | return 0; |
650 | ||
651 | error: | |
64f5abe1 | 652 | 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 |
653 | return ret; |
654 | } | |
655 | ||
656 | static | |
1cf393f6 | 657 | int ctf_write_event(struct bt_stream_pos *pos, struct ctf_stream_definition *stream) |
31262354 | 658 | { |
f380e105 | 659 | struct ctf_stream_declaration *stream_class = stream->stream_class; |
c716f83b | 660 | struct ctf_event_definition *event; |
c87a8eb2 | 661 | uint64_t id; |
31262354 MD |
662 | int ret; |
663 | ||
c87a8eb2 MD |
664 | id = stream->event_id; |
665 | ||
31262354 | 666 | /* print event header */ |
7f3f572b | 667 | if (likely(stream->stream_event_header)) { |
e28d4618 | 668 | ret = generic_rw(pos, &stream->stream_event_header->p); |
31262354 MD |
669 | if (ret) |
670 | goto error; | |
671 | } | |
672 | ||
673 | /* print stream-declared event context */ | |
e28d4618 MD |
674 | if (stream->stream_event_context) { |
675 | ret = generic_rw(pos, &stream->stream_event_context->p); | |
31262354 MD |
676 | if (ret) |
677 | goto error; | |
678 | } | |
679 | ||
7f3f572b | 680 | if (unlikely(id >= stream_class->events_by_id->len)) { |
3394d22e | 681 | fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id); |
31262354 MD |
682 | return -EINVAL; |
683 | } | |
e28d4618 | 684 | event = g_ptr_array_index(stream->events_by_id, id); |
7f3f572b | 685 | if (unlikely(!event)) { |
3394d22e | 686 | fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id); |
31262354 MD |
687 | return -EINVAL; |
688 | } | |
689 | ||
690 | /* print event-declared event context */ | |
e28d4618 MD |
691 | if (event->event_context) { |
692 | ret = generic_rw(pos, &event->event_context->p); | |
31262354 MD |
693 | if (ret) |
694 | goto error; | |
695 | } | |
696 | ||
697 | /* Read and print event payload */ | |
7f3f572b | 698 | if (likely(event->event_fields)) { |
e28d4618 | 699 | ret = generic_rw(pos, &event->event_fields->p); |
31262354 MD |
700 | if (ret) |
701 | goto error; | |
702 | } | |
703 | ||
704 | return 0; | |
705 | ||
706 | error: | |
3394d22e | 707 | 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 |
708 | return ret; |
709 | } | |
710 | ||
e69dd258 JD |
711 | /* |
712 | * One side-effect of this function is to unmap pos mmap base if one is | |
713 | * mapped. | |
714 | */ | |
715 | static | |
716 | int find_data_offset(struct ctf_stream_pos *pos, | |
717 | struct ctf_file_stream *file_stream, | |
718 | struct packet_index *packet_index) | |
719 | { | |
720 | uint64_t packet_map_len = DEFAULT_HEADER_LEN, tmp_map_len; | |
721 | struct stat filestats; | |
722 | size_t filesize; | |
723 | int ret; | |
724 | ||
725 | pos = &file_stream->pos; | |
726 | ||
727 | ret = fstat(pos->fd, &filestats); | |
728 | if (ret < 0) | |
729 | return ret; | |
730 | filesize = filestats.st_size; | |
731 | ||
732 | /* Deal with empty files */ | |
733 | if (!filesize) { | |
734 | return 0; | |
735 | } | |
736 | ||
737 | begin: | |
738 | if (filesize - pos->mmap_offset < (packet_map_len >> LOG2_CHAR_BIT)) { | |
739 | packet_map_len = (filesize - pos->mmap_offset) << LOG2_CHAR_BIT; | |
740 | } | |
741 | ||
742 | if (pos->base_mma) { | |
743 | /* unmap old base */ | |
744 | ret = munmap_align(pos->base_mma); | |
745 | if (ret) { | |
746 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", | |
747 | strerror(errno)); | |
748 | return ret; | |
749 | } | |
750 | pos->base_mma = NULL; | |
751 | } | |
752 | /* map new base. Need mapping length from header. */ | |
753 | pos->base_mma = mmap_align(packet_map_len >> LOG2_CHAR_BIT, PROT_READ, | |
754 | MAP_PRIVATE, pos->fd, pos->mmap_offset); | |
755 | assert(pos->base_mma != MAP_FAILED); | |
756 | ||
757 | pos->content_size = packet_map_len; | |
758 | pos->packet_size = packet_map_len; | |
759 | pos->offset = 0; /* Position of the packet header */ | |
760 | ||
761 | /* update trace_packet_header and stream_packet_context */ | |
762 | if (pos->prot == PROT_READ && file_stream->parent.trace_packet_header) { | |
763 | /* Read packet header */ | |
764 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); | |
765 | if (ret) { | |
766 | if (ret == -EFAULT) | |
767 | goto retry; | |
768 | } | |
769 | } | |
770 | if (pos->prot == PROT_READ && file_stream->parent.stream_packet_context) { | |
771 | /* Read packet context */ | |
772 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); | |
773 | if (ret) { | |
774 | if (ret == -EFAULT) | |
775 | goto retry; | |
776 | } | |
777 | } | |
778 | packet_index->data_offset = pos->offset; | |
779 | ||
780 | /* unmap old base */ | |
781 | ret = munmap_align(pos->base_mma); | |
782 | if (ret) { | |
783 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", | |
784 | strerror(errno)); | |
785 | return ret; | |
786 | } | |
787 | pos->base_mma = NULL; | |
788 | ||
789 | return 0; | |
790 | ||
791 | /* Retry with larger mapping */ | |
792 | retry: | |
793 | if (packet_map_len == ((filesize - pos->mmap_offset) << LOG2_CHAR_BIT)) { | |
794 | /* | |
795 | * Reached EOF, but still expecting header/context data. | |
796 | */ | |
797 | fprintf(stderr, "[error] Reached end of file, but still expecting header or context fields.\n"); | |
798 | return -EFAULT; | |
799 | } | |
800 | /* Double the mapping len, and retry */ | |
801 | tmp_map_len = packet_map_len << 1; | |
802 | if (tmp_map_len >> 1 != packet_map_len) { | |
803 | /* Overflow */ | |
804 | fprintf(stderr, "[error] Packet mapping length overflow\n"); | |
805 | return -EFAULT; | |
806 | } | |
807 | packet_map_len = tmp_map_len; | |
808 | goto begin; | |
809 | } | |
810 | ||
811 | ||
ca334c72 MD |
812 | int ctf_init_pos(struct ctf_stream_pos *pos, struct bt_trace_descriptor *trace, |
813 | int fd, int open_flags) | |
8c572eba MD |
814 | { |
815 | pos->fd = fd; | |
37fcdd19 | 816 | if (fd >= 0) { |
992e8cc0 | 817 | pos->packet_index = g_array_new(FALSE, TRUE, |
37fcdd19 JD |
818 | sizeof(struct packet_index)); |
819 | } else { | |
992e8cc0 | 820 | pos->packet_index = NULL; |
37fcdd19 | 821 | } |
8563e754 MD |
822 | switch (open_flags & O_ACCMODE) { |
823 | case O_RDONLY: | |
824 | pos->prot = PROT_READ; | |
825 | pos->flags = MAP_PRIVATE; | |
826 | pos->parent.rw_table = read_dispatch_table; | |
31262354 | 827 | pos->parent.event_cb = ctf_read_event; |
ca334c72 | 828 | pos->parent.trace = trace; |
8563e754 | 829 | break; |
8563e754 | 830 | case O_RDWR: |
c88c09f9 | 831 | pos->prot = PROT_READ | PROT_WRITE; |
8563e754 MD |
832 | pos->flags = MAP_SHARED; |
833 | pos->parent.rw_table = write_dispatch_table; | |
31262354 | 834 | pos->parent.event_cb = ctf_write_event; |
ca334c72 | 835 | pos->parent.trace = trace; |
8563e754 MD |
836 | break; |
837 | default: | |
838 | assert(0); | |
8c572eba | 839 | } |
f824ae04 | 840 | return 0; |
8c572eba MD |
841 | } |
842 | ||
f824ae04 | 843 | int ctf_fini_pos(struct ctf_stream_pos *pos) |
8c572eba | 844 | { |
c88c09f9 | 845 | if ((pos->prot & PROT_WRITE) && pos->content_size_loc) |
8c572eba | 846 | *pos->content_size_loc = pos->offset; |
aee35fcc | 847 | if (pos->base_mma) { |
08c82b90 MD |
848 | int ret; |
849 | ||
8c572eba | 850 | /* unmap old base */ |
aee35fcc | 851 | ret = munmap_align(pos->base_mma); |
8c572eba | 852 | if (ret) { |
3394d22e | 853 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", |
8c572eba | 854 | strerror(errno)); |
f824ae04 | 855 | return -1; |
8c572eba MD |
856 | } |
857 | } | |
992e8cc0 MD |
858 | if (pos->packet_index) |
859 | (void) g_array_free(pos->packet_index, TRUE); | |
f824ae04 | 860 | return 0; |
8c572eba MD |
861 | } |
862 | ||
f1f52630 MD |
863 | void ctf_update_current_packet_index(struct ctf_stream_definition *stream, |
864 | struct packet_index *prev_index, | |
865 | struct packet_index *cur_index) | |
866 | { | |
867 | uint64_t events_discarded_diff; | |
6246fd54 | 868 | uint64_t packets_lost_diff = 0; |
f1f52630 MD |
869 | |
870 | /* Update packet index time information */ | |
2654fe9b MD |
871 | |
872 | /* Current packet begin/end */ | |
873 | stream->current.real.begin = | |
874 | cur_index->ts_real.timestamp_begin; | |
875 | stream->current.cycles.begin = | |
f1f52630 | 876 | cur_index->ts_cycles.timestamp_begin; |
2654fe9b | 877 | stream->current.real.end = |
f1f52630 | 878 | cur_index->ts_real.timestamp_end; |
2654fe9b MD |
879 | stream->current.cycles.end = |
880 | cur_index->ts_cycles.timestamp_end; | |
f1f52630 MD |
881 | |
882 | /* Update packet index discarded event information */ | |
883 | events_discarded_diff = cur_index->events_discarded; | |
884 | if (prev_index) { | |
2654fe9b MD |
885 | /* Previous packet begin/end */ |
886 | stream->prev.cycles.begin = | |
887 | prev_index->ts_cycles.timestamp_begin; | |
888 | stream->prev.real.begin = | |
889 | prev_index->ts_real.timestamp_begin; | |
890 | stream->prev.cycles.end = | |
891 | prev_index->ts_cycles.timestamp_end; | |
892 | stream->prev.real.end = | |
893 | prev_index->ts_real.timestamp_end; | |
894 | ||
f1f52630 | 895 | events_discarded_diff -= prev_index->events_discarded; |
6246fd54 JD |
896 | /* packet_seq_num stays at 0 if not produced by the tracer */ |
897 | if (cur_index->packet_seq_num) { | |
898 | packets_lost_diff = cur_index->packet_seq_num - | |
899 | prev_index->packet_seq_num - 1; | |
900 | } | |
f1f52630 MD |
901 | /* |
902 | * Deal with 32-bit wrap-around if the tracer provided a | |
903 | * 32-bit field. | |
904 | */ | |
905 | if (prev_index->events_discarded_len == 32) { | |
906 | events_discarded_diff = (uint32_t) events_discarded_diff; | |
907 | } | |
2654fe9b MD |
908 | } else { |
909 | /* | |
910 | * First packet: use current packet info as limits for | |
911 | * previous packet. | |
912 | */ | |
913 | stream->prev.cycles.begin = | |
914 | stream->prev.cycles.end = | |
915 | stream->current.cycles.begin; | |
916 | stream->prev.real.begin = | |
917 | stream->prev.real.end = | |
918 | stream->current.real.begin; | |
f1f52630 MD |
919 | } |
920 | stream->events_discarded = events_discarded_diff; | |
6246fd54 | 921 | stream->packets_lost = packets_lost_diff; |
f1f52630 MD |
922 | } |
923 | ||
7da9b2f3 JD |
924 | /* |
925 | * Find the timerange where all the streams in the trace are active | |
926 | * simultaneously. | |
927 | * | |
928 | * Return 0 and update begin/end if necessary on success, return 1 for | |
929 | * empty streams and return a negative value on error. | |
930 | */ | |
931 | static | |
932 | int ctf_intersect_trace(struct bt_trace_descriptor *td_read, | |
933 | uint64_t *begin, uint64_t *end) | |
934 | { | |
935 | struct ctf_trace *tin; | |
936 | int stream_id, ret = 0; | |
937 | ||
938 | tin = container_of(td_read, struct ctf_trace, parent); | |
939 | ||
940 | for (stream_id = 0; stream_id < tin->streams->len; | |
941 | stream_id++) { | |
942 | int filenr; | |
943 | struct ctf_stream_declaration *stream_class; | |
944 | ||
945 | stream_class = g_ptr_array_index(tin->streams, stream_id); | |
946 | if (!stream_class) { | |
947 | continue; | |
948 | } | |
949 | for (filenr = 0; filenr < stream_class->streams->len; filenr++) { | |
950 | struct ctf_file_stream *file_stream; | |
951 | struct ctf_stream_pos *stream_pos; | |
952 | struct packet_index *index; | |
953 | ||
954 | file_stream = g_ptr_array_index(stream_class->streams, | |
955 | filenr); | |
956 | if (!file_stream) { | |
957 | continue; | |
958 | } | |
959 | stream_pos = &file_stream->pos; | |
960 | if (!stream_pos->packet_index || | |
961 | stream_pos->packet_index->len <= 0) { | |
962 | ret = 1; | |
963 | goto end; | |
964 | } | |
965 | index = &g_array_index(stream_pos->packet_index, | |
966 | struct packet_index, 0); | |
967 | if (index->ts_real.timestamp_begin > *begin) { | |
968 | *begin = index->ts_real.timestamp_begin; | |
969 | } | |
970 | index = &g_array_index(stream_pos->packet_index, | |
971 | struct packet_index, | |
972 | stream_pos->packet_index->len - 1); | |
973 | if (index->ts_real.timestamp_end < *end) { | |
974 | *end = index->ts_real.timestamp_end; | |
975 | } | |
976 | } | |
977 | } | |
978 | ||
979 | end: | |
980 | return ret; | |
981 | } | |
982 | ||
983 | /* | |
984 | * Find the timerange where all streams in the trace collection are active | |
985 | * simultaneously. | |
986 | * | |
987 | * Return 0 on success. | |
988 | * Return 1 if no intersections are found. | |
989 | * Return a negative value on error. | |
990 | */ | |
991 | int ctf_find_packets_intersection(struct bt_context *ctx, | |
992 | uint64_t *ts_begin, uint64_t *ts_end) | |
993 | { | |
994 | int ret, i; | |
995 | ||
996 | if (!ctx || !ctx->tc || !ctx->tc->array) { | |
997 | ret = -EINVAL; | |
998 | goto end; | |
999 | } | |
1000 | ||
1001 | for (i = 0; i < ctx->tc->array->len; i++) { | |
1002 | struct bt_trace_descriptor *td_read; | |
1003 | ||
1004 | td_read = g_ptr_array_index(ctx->tc->array, i); | |
1005 | if (!td_read) { | |
1006 | continue; | |
1007 | } | |
1008 | ret = ctf_intersect_trace(td_read, ts_begin, ts_end); | |
1009 | if (ret) { | |
1010 | goto end; | |
1011 | } | |
1012 | } | |
1013 | if (*ts_end < *ts_begin) { | |
1014 | ret = 1; | |
1015 | } else { | |
1016 | ret = 0; | |
1017 | } | |
1018 | end: | |
1019 | return ret; | |
1020 | } | |
1021 | ||
20d0dcf9 MD |
1022 | /* |
1023 | * for SEEK_CUR: go to next packet. | |
34b8fff6 | 1024 | * for SEEK_SET: go to packet numer (index). |
20d0dcf9 | 1025 | */ |
1cf393f6 | 1026 | void ctf_packet_seek(struct bt_stream_pos *stream_pos, size_t index, int whence) |
0f980a35 | 1027 | { |
d6425aaf MD |
1028 | struct ctf_stream_pos *pos = |
1029 | container_of(stream_pos, struct ctf_stream_pos, parent); | |
75cc2c35 MD |
1030 | struct ctf_file_stream *file_stream = |
1031 | container_of(pos, struct ctf_file_stream, pos); | |
0f980a35 | 1032 | int ret; |
2654fe9b | 1033 | struct packet_index *packet_index, *prev_index; |
0f980a35 | 1034 | |
5bfcad93 MD |
1035 | switch (whence) { |
1036 | case SEEK_CUR: | |
1037 | case SEEK_SET: /* Fall-through */ | |
1038 | break; /* OK */ | |
1039 | default: | |
1040 | assert(0); | |
1041 | } | |
1042 | ||
c88c09f9 | 1043 | if ((pos->prot & PROT_WRITE) && pos->content_size_loc) |
8c572eba | 1044 | *pos->content_size_loc = pos->offset; |
0f980a35 | 1045 | |
aee35fcc | 1046 | if (pos->base_mma) { |
0f980a35 | 1047 | /* unmap old base */ |
aee35fcc | 1048 | ret = munmap_align(pos->base_mma); |
0f980a35 | 1049 | if (ret) { |
3394d22e | 1050 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", |
0f980a35 MD |
1051 | strerror(errno)); |
1052 | assert(0); | |
1053 | } | |
aee35fcc | 1054 | pos->base_mma = NULL; |
0f980a35 MD |
1055 | } |
1056 | ||
8c572eba | 1057 | /* |
46322b33 | 1058 | * The caller should never ask for ctf_move_pos across packets, |
8c572eba MD |
1059 | * except to get exactly at the beginning of the next packet. |
1060 | */ | |
c88c09f9 | 1061 | if (pos->prot & PROT_WRITE) { |
989c73bc MD |
1062 | switch (whence) { |
1063 | case SEEK_CUR: | |
1064 | /* The writer will add padding */ | |
e0a5b455 | 1065 | pos->mmap_offset += pos->packet_size / CHAR_BIT; |
989c73bc MD |
1066 | break; |
1067 | case SEEK_SET: | |
20d0dcf9 | 1068 | assert(index == 0); /* only seek supported for now */ |
989c73bc MD |
1069 | pos->cur_index = 0; |
1070 | break; | |
1071 | default: | |
1072 | assert(0); | |
1073 | } | |
8c572eba MD |
1074 | pos->content_size = -1U; /* Unknown at this point */ |
1075 | pos->packet_size = WRITE_PACKET_LEN; | |
d9548894 MD |
1076 | do { |
1077 | ret = bt_posix_fallocate(pos->fd, pos->mmap_offset, | |
1078 | pos->packet_size / CHAR_BIT); | |
1079 | } while (ret == EINTR); | |
1080 | assert(ret == 0); | |
847bf71a | 1081 | pos->offset = 0; |
8c572eba | 1082 | } else { |
5f643ed7 | 1083 | read_next_packet: |
847bf71a MD |
1084 | switch (whence) { |
1085 | case SEEK_CUR: | |
41e82e00 | 1086 | { |
7d97fad9 MD |
1087 | if (pos->offset == EOF) { |
1088 | return; | |
1089 | } | |
992e8cc0 | 1090 | assert(pos->cur_index < pos->packet_index->len); |
847bf71a | 1091 | /* The reader will expect us to skip padding */ |
8c572eba | 1092 | ++pos->cur_index; |
847bf71a | 1093 | break; |
41e82e00 | 1094 | } |
847bf71a | 1095 | case SEEK_SET: |
992e8cc0 | 1096 | if (index >= pos->packet_index->len) { |
c309df1c MD |
1097 | pos->offset = EOF; |
1098 | return; | |
1099 | } | |
20d0dcf9 | 1100 | pos->cur_index = index; |
847bf71a MD |
1101 | break; |
1102 | default: | |
1103 | assert(0); | |
1104 | } | |
2654fe9b | 1105 | |
024ffe47 MD |
1106 | if (pos->cur_index >= pos->packet_index->len) { |
1107 | pos->offset = EOF; | |
1108 | return; | |
1109 | } | |
1110 | ||
2654fe9b MD |
1111 | packet_index = &g_array_index(pos->packet_index, |
1112 | struct packet_index, pos->cur_index); | |
1113 | if (pos->cur_index > 0) { | |
1114 | prev_index = &g_array_index(pos->packet_index, | |
1115 | struct packet_index, | |
1116 | pos->cur_index - 1); | |
1117 | } else { | |
1118 | prev_index = NULL; | |
1119 | } | |
1120 | ctf_update_current_packet_index(&file_stream->parent, | |
1121 | prev_index, packet_index); | |
1122 | ||
2654fe9b MD |
1123 | /* |
1124 | * We need to check if we are in trace read or called | |
1125 | * from packet indexing. In this last case, the | |
1126 | * collection is not there, so we cannot print the | |
1127 | * timestamps. | |
1128 | */ | |
1129 | if ((&file_stream->parent)->stream_class->trace->parent.collection) { | |
6246fd54 | 1130 | ctf_print_discarded_lost(stderr, &file_stream->parent); |
2654fe9b MD |
1131 | } |
1132 | ||
992e8cc0 | 1133 | packet_index = &g_array_index(pos->packet_index, |
03798a93 JD |
1134 | struct packet_index, |
1135 | pos->cur_index); | |
992e8cc0 | 1136 | file_stream->parent.cycles_timestamp = packet_index->ts_cycles.timestamp_begin; |
03798a93 | 1137 | |
992e8cc0 | 1138 | file_stream->parent.real_timestamp = packet_index->ts_real.timestamp_begin; |
8c572eba MD |
1139 | |
1140 | /* Lookup context/packet size in index */ | |
e69dd258 JD |
1141 | if (packet_index->data_offset == -1) { |
1142 | ret = find_data_offset(pos, file_stream, packet_index); | |
1143 | if (ret < 0) { | |
1144 | return; | |
1145 | } | |
1146 | } | |
20d0dcf9 MD |
1147 | pos->content_size = packet_index->content_size; |
1148 | pos->packet_size = packet_index->packet_size; | |
e69dd258 | 1149 | pos->mmap_offset = packet_index->offset; |
500634be JD |
1150 | pos->data_offset = packet_index->data_offset; |
1151 | if (pos->data_offset < packet_index->content_size) { | |
75cc2c35 | 1152 | pos->offset = 0; /* will read headers */ |
500634be | 1153 | } else if (pos->data_offset == packet_index->content_size) { |
5f643ed7 | 1154 | /* empty packet */ |
20d0dcf9 | 1155 | pos->offset = packet_index->data_offset; |
3abe83c7 | 1156 | whence = SEEK_CUR; |
5f643ed7 | 1157 | goto read_next_packet; |
7eda6fc7 | 1158 | } else { |
2b9a764d MD |
1159 | pos->offset = EOF; |
1160 | return; | |
1161 | } | |
8c572eba | 1162 | } |
0f980a35 | 1163 | /* map new base. Need mapping length from header. */ |
aee35fcc MD |
1164 | pos->base_mma = mmap_align(pos->packet_size / CHAR_BIT, pos->prot, |
1165 | pos->flags, pos->fd, pos->mmap_offset); | |
1166 | if (pos->base_mma == MAP_FAILED) { | |
3394d22e | 1167 | fprintf(stderr, "[error] mmap error %s.\n", |
847bf71a MD |
1168 | strerror(errno)); |
1169 | assert(0); | |
1170 | } | |
75cc2c35 MD |
1171 | |
1172 | /* update trace_packet_header and stream_packet_context */ | |
c88c09f9 JG |
1173 | if (!(pos->prot & PROT_WRITE) && |
1174 | file_stream->parent.trace_packet_header) { | |
75cc2c35 | 1175 | /* Read packet header */ |
2d0bea29 | 1176 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); |
75cc2c35 MD |
1177 | assert(!ret); |
1178 | } | |
c88c09f9 JG |
1179 | if (!(pos->prot & PROT_WRITE) && |
1180 | file_stream->parent.stream_packet_context) { | |
75cc2c35 | 1181 | /* Read packet context */ |
2d0bea29 | 1182 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); |
75cc2c35 MD |
1183 | assert(!ret); |
1184 | } | |
0f980a35 MD |
1185 | } |
1186 | ||
b4c19c1e MD |
1187 | static |
1188 | int packet_metadata(struct ctf_trace *td, FILE *fp) | |
1189 | { | |
1190 | uint32_t magic; | |
1191 | size_t len; | |
1192 | int ret = 0; | |
1193 | ||
1194 | len = fread(&magic, sizeof(magic), 1, fp); | |
a0fe7d97 | 1195 | if (len != 1) { |
b4c19c1e MD |
1196 | goto end; |
1197 | } | |
1198 | if (magic == TSDL_MAGIC) { | |
1199 | ret = 1; | |
1200 | td->byte_order = BYTE_ORDER; | |
0d336fdf | 1201 | CTF_TRACE_SET_FIELD(td, byte_order); |
b4c19c1e MD |
1202 | } else if (magic == GUINT32_SWAP_LE_BE(TSDL_MAGIC)) { |
1203 | ret = 1; | |
1204 | td->byte_order = (BYTE_ORDER == BIG_ENDIAN) ? | |
1205 | LITTLE_ENDIAN : BIG_ENDIAN; | |
0d336fdf | 1206 | CTF_TRACE_SET_FIELD(td, byte_order); |
b4c19c1e MD |
1207 | } |
1208 | end: | |
1209 | rewind(fp); | |
1210 | return ret; | |
1211 | } | |
1212 | ||
5c262147 MD |
1213 | /* |
1214 | * Returns 0 on success, -1 on error. | |
1215 | */ | |
1216 | static | |
1217 | int check_version(unsigned int major, unsigned int minor) | |
1218 | { | |
1219 | switch (major) { | |
1220 | case 1: | |
1221 | switch (minor) { | |
1222 | case 8: | |
1223 | return 0; | |
1224 | default: | |
1225 | goto warning; | |
1226 | } | |
1227 | default: | |
1228 | goto warning; | |
9a19a512 | 1229 | |
5c262147 MD |
1230 | } |
1231 | ||
1232 | /* eventually return an error instead of warning */ | |
1233 | warning: | |
3394d22e | 1234 | fprintf(stderr, "[warning] Unsupported CTF specification version %u.%u. Trying anyway.\n", |
5c262147 MD |
1235 | major, minor); |
1236 | return 0; | |
1237 | } | |
1238 | ||
b4c19c1e | 1239 | static |
0c880b0a | 1240 | int ctf_trace_metadata_packet_read(struct ctf_trace *td, FILE *in, |
b4c19c1e MD |
1241 | FILE *out) |
1242 | { | |
1243 | struct metadata_packet_header header; | |
a0fe7d97 | 1244 | size_t readlen, writelen, toread; |
f8254867 | 1245 | char buf[4096 + 1]; /* + 1 for debug-mode \0 */ |
b4c19c1e MD |
1246 | int ret = 0; |
1247 | ||
a91a962e | 1248 | readlen = fread(&header, header_sizeof(header), 1, in); |
a0fe7d97 | 1249 | if (readlen < 1) |
b4c19c1e MD |
1250 | return -EINVAL; |
1251 | ||
1252 | if (td->byte_order != BYTE_ORDER) { | |
1253 | header.magic = GUINT32_SWAP_LE_BE(header.magic); | |
1254 | header.checksum = GUINT32_SWAP_LE_BE(header.checksum); | |
1255 | header.content_size = GUINT32_SWAP_LE_BE(header.content_size); | |
1256 | header.packet_size = GUINT32_SWAP_LE_BE(header.packet_size); | |
1257 | } | |
1258 | if (header.checksum) | |
3394d22e | 1259 | fprintf(stderr, "[warning] checksum verification not supported yet.\n"); |
b4c19c1e | 1260 | if (header.compression_scheme) { |
3394d22e | 1261 | fprintf(stderr, "[error] compression (%u) not supported yet.\n", |
b4c19c1e MD |
1262 | header.compression_scheme); |
1263 | return -EINVAL; | |
1264 | } | |
1265 | if (header.encryption_scheme) { | |
3394d22e | 1266 | fprintf(stderr, "[error] encryption (%u) not supported yet.\n", |
b4c19c1e MD |
1267 | header.encryption_scheme); |
1268 | return -EINVAL; | |
1269 | } | |
1270 | if (header.checksum_scheme) { | |
3394d22e | 1271 | fprintf(stderr, "[error] checksum (%u) not supported yet.\n", |
b4c19c1e MD |
1272 | header.checksum_scheme); |
1273 | return -EINVAL; | |
1274 | } | |
5c262147 MD |
1275 | if (check_version(header.major, header.minor) < 0) |
1276 | return -EINVAL; | |
b4c19c1e MD |
1277 | if (!CTF_TRACE_FIELD_IS_SET(td, uuid)) { |
1278 | memcpy(td->uuid, header.uuid, sizeof(header.uuid)); | |
1279 | CTF_TRACE_SET_FIELD(td, uuid); | |
1280 | } else { | |
19dd40db | 1281 | if (bt_uuid_compare(header.uuid, td->uuid)) |
b4c19c1e MD |
1282 | return -EINVAL; |
1283 | } | |
1284 | ||
b1ccd079 MD |
1285 | if ((header.content_size / CHAR_BIT) < header_sizeof(header)) |
1286 | return -EINVAL; | |
1287 | ||
255b2138 | 1288 | toread = (header.content_size / CHAR_BIT) - header_sizeof(header); |
a0fe7d97 MD |
1289 | |
1290 | for (;;) { | |
f8254867 | 1291 | readlen = fread(buf, sizeof(char), min(sizeof(buf) - 1, toread), in); |
b4c19c1e MD |
1292 | if (ferror(in)) { |
1293 | ret = -EINVAL; | |
1294 | break; | |
1295 | } | |
4152822b | 1296 | if (babeltrace_debug) { |
f8254867 | 1297 | buf[readlen] = '\0'; |
3394d22e | 1298 | fprintf(stderr, "[debug] metadata packet read: %s\n", |
4152822b MD |
1299 | buf); |
1300 | } | |
1301 | ||
b4c19c1e MD |
1302 | writelen = fwrite(buf, sizeof(char), readlen, out); |
1303 | if (writelen < readlen) { | |
1304 | ret = -EIO; | |
1305 | break; | |
1306 | } | |
1307 | if (ferror(out)) { | |
1308 | ret = -EINVAL; | |
1309 | break; | |
1310 | } | |
a0fe7d97 MD |
1311 | toread -= readlen; |
1312 | if (!toread) { | |
7f4b5c4d | 1313 | ret = 0; /* continue reading next packet */ |
ddbc52af | 1314 | goto read_padding; |
a0fe7d97 | 1315 | } |
b4c19c1e MD |
1316 | } |
1317 | return ret; | |
ddbc52af MD |
1318 | |
1319 | read_padding: | |
1320 | toread = (header.packet_size - header.content_size) / CHAR_BIT; | |
1321 | ret = fseek(in, toread, SEEK_CUR); | |
1322 | if (ret < 0) { | |
3394d22e | 1323 | fprintf(stderr, "[warning] Missing padding at end of file\n"); |
ddbc52af MD |
1324 | ret = 0; |
1325 | } | |
1326 | return ret; | |
b4c19c1e MD |
1327 | } |
1328 | ||
1329 | static | |
0c880b0a | 1330 | int ctf_trace_metadata_stream_read(struct ctf_trace *td, FILE **fp, |
b4c19c1e MD |
1331 | char **buf) |
1332 | { | |
1333 | FILE *in, *out; | |
abc40d24 | 1334 | size_t size, buflen; |
b4c19c1e MD |
1335 | int ret; |
1336 | ||
1337 | in = *fp; | |
c4f5487e MD |
1338 | /* |
1339 | * Using strlen on *buf instead of size of open_memstream | |
1340 | * because its size includes garbage at the end (after final | |
1341 | * \0). This is the allocated size, not the actual string size. | |
1342 | */ | |
f8370579 | 1343 | out = babeltrace_open_memstream(buf, &size); |
a569a564 MD |
1344 | if (out == NULL) { |
1345 | perror("Metadata open_memstream"); | |
b4c19c1e | 1346 | return -errno; |
a569a564 | 1347 | } |
b4c19c1e | 1348 | for (;;) { |
0c880b0a | 1349 | ret = ctf_trace_metadata_packet_read(td, in, out); |
7f4b5c4d | 1350 | if (ret) { |
b4c19c1e | 1351 | break; |
7f4b5c4d MD |
1352 | } |
1353 | if (feof(in)) { | |
1354 | ret = 0; | |
b4c19c1e MD |
1355 | break; |
1356 | } | |
1357 | } | |
f8370579 MD |
1358 | /* close to flush the buffer */ |
1359 | ret = babeltrace_close_memstream(buf, &size, out); | |
1360 | if (ret < 0) { | |
f824ae04 MD |
1361 | int closeret; |
1362 | ||
f8370579 | 1363 | perror("babeltrace_flush_memstream"); |
f824ae04 MD |
1364 | ret = -errno; |
1365 | closeret = fclose(in); | |
1366 | if (closeret) { | |
1367 | perror("Error in fclose"); | |
1368 | } | |
1369 | return ret; | |
1370 | } | |
1371 | ret = fclose(in); | |
1372 | if (ret) { | |
1373 | perror("Error in fclose"); | |
f8370579 | 1374 | } |
b4c19c1e | 1375 | /* open for reading */ |
abc40d24 MD |
1376 | buflen = strlen(*buf); |
1377 | if (!buflen) { | |
1378 | *fp = NULL; | |
493330cb | 1379 | return -ENOENT; |
abc40d24 MD |
1380 | } |
1381 | *fp = babeltrace_fmemopen(*buf, buflen, "rb"); | |
a569a564 MD |
1382 | if (!*fp) { |
1383 | perror("Metadata fmemopen"); | |
1384 | return -errno; | |
1385 | } | |
b4c19c1e MD |
1386 | return 0; |
1387 | } | |
1388 | ||
65102a8c | 1389 | static |
0c880b0a MD |
1390 | int ctf_trace_metadata_read(struct ctf_trace *td, FILE *metadata_fp, |
1391 | struct ctf_scanner *scanner, int append) | |
65102a8c | 1392 | { |
2d0bea29 | 1393 | struct ctf_file_stream *metadata_stream; |
65102a8c | 1394 | FILE *fp; |
b4c19c1e | 1395 | char *buf = NULL; |
f824ae04 | 1396 | int ret = 0, closeret; |
65102a8c | 1397 | |
2d0bea29 | 1398 | metadata_stream = g_new0(struct ctf_file_stream, 1); |
3a25e036 | 1399 | metadata_stream->pos.last_offset = LAST_OFFSET_POISON; |
b086c01a | 1400 | |
ae23d232 JD |
1401 | if (metadata_fp) { |
1402 | fp = metadata_fp; | |
bcbfb8bf | 1403 | metadata_stream->pos.fd = -1; |
ae23d232 JD |
1404 | } else { |
1405 | td->metadata = &metadata_stream->parent; | |
1406 | metadata_stream->pos.fd = openat(td->dirfd, "metadata", O_RDONLY); | |
1407 | if (metadata_stream->pos.fd < 0) { | |
3394d22e | 1408 | fprintf(stderr, "Unable to open metadata.\n"); |
f824ae04 MD |
1409 | ret = -1; |
1410 | goto end_free; | |
ae23d232 | 1411 | } |
65102a8c | 1412 | |
ae23d232 JD |
1413 | fp = fdopen(metadata_stream->pos.fd, "r"); |
1414 | if (!fp) { | |
3394d22e | 1415 | fprintf(stderr, "[error] Unable to open metadata stream.\n"); |
a569a564 | 1416 | perror("Metadata stream open"); |
ae23d232 JD |
1417 | ret = -errno; |
1418 | goto end_stream; | |
1419 | } | |
f824ae04 MD |
1420 | /* fd now belongs to fp */ |
1421 | metadata_stream->pos.fd = -1; | |
ae23d232 | 1422 | } |
65102a8c MD |
1423 | if (babeltrace_debug) |
1424 | yydebug = 1; | |
1425 | ||
b4c19c1e | 1426 | if (packet_metadata(td, fp)) { |
0c880b0a | 1427 | ret = ctf_trace_metadata_stream_read(td, &fp, &buf); |
abc40d24 | 1428 | if (ret) { |
6514b4af | 1429 | goto end; |
abc40d24 | 1430 | } |
7237592a MD |
1431 | td->metadata_string = buf; |
1432 | td->metadata_packetized = 1; | |
da75b0f7 | 1433 | } else { |
0c880b0a MD |
1434 | if (!append) { |
1435 | unsigned int major, minor; | |
1436 | ssize_t nr_items; | |
1437 | ||
1438 | td->byte_order = BYTE_ORDER; | |
1439 | ||
1440 | /* Check text-only metadata header and version */ | |
1441 | nr_items = fscanf(fp, "/* CTF %10u.%10u", &major, &minor); | |
1442 | if (nr_items < 2) | |
1443 | fprintf(stderr, "[warning] Ill-shapen or missing \"/* CTF x.y\" header for text-only metadata.\n"); | |
1444 | if (check_version(major, minor) < 0) { | |
1445 | ret = -EINVAL; | |
1446 | goto end; | |
1447 | } | |
1448 | rewind(fp); | |
5c262147 | 1449 | } |
b4c19c1e MD |
1450 | } |
1451 | ||
cb2f43ee | 1452 | ret = ctf_scanner_append_ast(scanner, fp); |
65102a8c | 1453 | if (ret) { |
3394d22e | 1454 | fprintf(stderr, "[error] Error creating AST\n"); |
65102a8c MD |
1455 | goto end; |
1456 | } | |
1457 | ||
1458 | if (babeltrace_debug) { | |
3394d22e | 1459 | ret = ctf_visitor_print_xml(stderr, 0, &scanner->ast->root); |
65102a8c | 1460 | if (ret) { |
3394d22e | 1461 | fprintf(stderr, "[error] Error visiting AST for XML output\n"); |
65102a8c MD |
1462 | goto end; |
1463 | } | |
1464 | } | |
1465 | ||
3394d22e | 1466 | ret = ctf_visitor_semantic_check(stderr, 0, &scanner->ast->root); |
65102a8c | 1467 | if (ret) { |
3394d22e | 1468 | fprintf(stderr, "[error] Error in CTF semantic validation %d\n", ret); |
65102a8c MD |
1469 | goto end; |
1470 | } | |
3394d22e | 1471 | ret = ctf_visitor_construct_metadata(stderr, 0, &scanner->ast->root, |
ac5c6ca0 | 1472 | td, td->byte_order); |
65102a8c | 1473 | if (ret) { |
3394d22e | 1474 | fprintf(stderr, "[error] Error in CTF metadata constructor %d\n", ret); |
65102a8c MD |
1475 | goto end; |
1476 | } | |
1477 | end: | |
f824ae04 MD |
1478 | if (fp) { |
1479 | closeret = fclose(fp); | |
1480 | if (closeret) { | |
1481 | perror("Error on fclose"); | |
1482 | } | |
1483 | } | |
65102a8c | 1484 | end_stream: |
f824ae04 MD |
1485 | if (metadata_stream->pos.fd >= 0) { |
1486 | closeret = close(metadata_stream->pos.fd); | |
1487 | if (closeret) { | |
1488 | perror("Error on metadata stream fd close"); | |
1489 | } | |
1490 | } | |
1491 | end_free: | |
2d0bea29 MD |
1492 | if (ret) |
1493 | g_free(metadata_stream); | |
0f980a35 MD |
1494 | return ret; |
1495 | } | |
1496 | ||
e28d4618 | 1497 | static |
c716f83b | 1498 | struct ctf_event_definition *create_event_definitions(struct ctf_trace *td, |
9e88d150 | 1499 | struct ctf_stream_definition *stream, |
4716614a | 1500 | struct ctf_event_declaration *event) |
e28d4618 | 1501 | { |
c716f83b | 1502 | struct ctf_event_definition *stream_event = g_new0(struct ctf_event_definition, 1); |
e28d4618 MD |
1503 | |
1504 | if (event->context_decl) { | |
0d69b916 | 1505 | struct bt_definition *definition = |
e28d4618 MD |
1506 | event->context_decl->p.definition_new(&event->context_decl->p, |
1507 | stream->parent_def_scope, 0, 0, "event.context"); | |
1508 | if (!definition) { | |
1509 | goto error; | |
1510 | } | |
42dc00b7 | 1511 | stream_event->event_context = container_of(definition, |
e28d4618 | 1512 | struct definition_struct, p); |
42dc00b7 | 1513 | stream->parent_def_scope = stream_event->event_context->p.scope; |
e28d4618 MD |
1514 | } |
1515 | if (event->fields_decl) { | |
0d69b916 | 1516 | struct bt_definition *definition = |
e28d4618 MD |
1517 | event->fields_decl->p.definition_new(&event->fields_decl->p, |
1518 | stream->parent_def_scope, 0, 0, "event.fields"); | |
1519 | if (!definition) { | |
1520 | goto error; | |
1521 | } | |
42dc00b7 | 1522 | stream_event->event_fields = container_of(definition, |
e28d4618 | 1523 | struct definition_struct, p); |
42dc00b7 | 1524 | stream->parent_def_scope = stream_event->event_fields->p.scope; |
e28d4618 | 1525 | } |
d3ded99d | 1526 | stream_event->stream = stream; |
42dc00b7 | 1527 | return stream_event; |
e28d4618 MD |
1528 | |
1529 | error: | |
42dc00b7 | 1530 | if (stream_event->event_fields) |
13fad8b6 | 1531 | bt_definition_unref(&stream_event->event_fields->p); |
42dc00b7 | 1532 | if (stream_event->event_context) |
13fad8b6 | 1533 | bt_definition_unref(&stream_event->event_context->p); |
888ec52a MD |
1534 | fprintf(stderr, "[error] Unable to create event definition for event \"%s\".\n", |
1535 | g_quark_to_string(event->name)); | |
e28d4618 MD |
1536 | return NULL; |
1537 | } | |
1538 | ||
0c880b0a MD |
1539 | static |
1540 | int copy_event_declarations_stream_class_to_stream(struct ctf_trace *td, | |
1541 | struct ctf_stream_declaration *stream_class, | |
1542 | struct ctf_stream_definition *stream) | |
1543 | { | |
1544 | size_t def_size, class_size, i; | |
1545 | int ret = 0; | |
1546 | ||
1547 | def_size = stream->events_by_id->len; | |
1548 | class_size = stream_class->events_by_id->len; | |
1549 | ||
1550 | g_ptr_array_set_size(stream->events_by_id, class_size); | |
1551 | for (i = def_size; i < class_size; i++) { | |
1552 | struct ctf_event_declaration *event = | |
1553 | g_ptr_array_index(stream_class->events_by_id, i); | |
1554 | struct ctf_event_definition *stream_event; | |
1555 | ||
1556 | if (!event) | |
1557 | continue; | |
1558 | stream_event = create_event_definitions(td, stream, event); | |
1559 | if (!stream_event) { | |
1560 | ret = -EINVAL; | |
1561 | goto error; | |
1562 | } | |
1563 | g_ptr_array_index(stream->events_by_id, i) = stream_event; | |
1564 | } | |
1565 | error: | |
1566 | return ret; | |
1567 | } | |
1568 | ||
e28d4618 | 1569 | static |
9e88d150 | 1570 | int create_stream_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream) |
e28d4618 | 1571 | { |
f380e105 | 1572 | struct ctf_stream_declaration *stream_class; |
e28d4618 MD |
1573 | int ret; |
1574 | int i; | |
1575 | ||
1576 | if (stream->stream_definitions_created) | |
1577 | return 0; | |
1578 | ||
1579 | stream_class = stream->stream_class; | |
1580 | ||
1581 | if (stream_class->packet_context_decl) { | |
0d69b916 | 1582 | struct bt_definition *definition = |
e28d4618 MD |
1583 | stream_class->packet_context_decl->p.definition_new(&stream_class->packet_context_decl->p, |
1584 | stream->parent_def_scope, 0, 0, "stream.packet.context"); | |
1585 | if (!definition) { | |
1586 | ret = -EINVAL; | |
1587 | goto error; | |
1588 | } | |
1589 | stream->stream_packet_context = container_of(definition, | |
1590 | struct definition_struct, p); | |
1591 | stream->parent_def_scope = stream->stream_packet_context->p.scope; | |
1592 | } | |
1593 | if (stream_class->event_header_decl) { | |
0d69b916 | 1594 | struct bt_definition *definition = |
e28d4618 MD |
1595 | stream_class->event_header_decl->p.definition_new(&stream_class->event_header_decl->p, |
1596 | stream->parent_def_scope, 0, 0, "stream.event.header"); | |
1597 | if (!definition) { | |
1598 | ret = -EINVAL; | |
1599 | goto error; | |
1600 | } | |
1601 | stream->stream_event_header = | |
1602 | container_of(definition, struct definition_struct, p); | |
1603 | stream->parent_def_scope = stream->stream_event_header->p.scope; | |
1604 | } | |
1605 | if (stream_class->event_context_decl) { | |
0d69b916 | 1606 | struct bt_definition *definition = |
e28d4618 MD |
1607 | stream_class->event_context_decl->p.definition_new(&stream_class->event_context_decl->p, |
1608 | stream->parent_def_scope, 0, 0, "stream.event.context"); | |
1609 | if (!definition) { | |
1610 | ret = -EINVAL; | |
1611 | goto error; | |
1612 | } | |
1613 | stream->stream_event_context = | |
1614 | container_of(definition, struct definition_struct, p); | |
1615 | stream->parent_def_scope = stream->stream_event_context->p.scope; | |
1616 | } | |
1617 | stream->events_by_id = g_ptr_array_new(); | |
0c880b0a MD |
1618 | ret = copy_event_declarations_stream_class_to_stream(td, |
1619 | stream_class, stream); | |
1620 | if (ret) | |
1621 | goto error_event; | |
e28d4618 MD |
1622 | return 0; |
1623 | ||
1624 | error_event: | |
1625 | for (i = 0; i < stream->events_by_id->len; i++) { | |
c716f83b | 1626 | struct ctf_event_definition *stream_event = g_ptr_array_index(stream->events_by_id, i); |
42dc00b7 MD |
1627 | if (stream_event) |
1628 | g_free(stream_event); | |
e28d4618 MD |
1629 | } |
1630 | g_ptr_array_free(stream->events_by_id, TRUE); | |
1631 | error: | |
1632 | if (stream->stream_event_context) | |
13fad8b6 | 1633 | bt_definition_unref(&stream->stream_event_context->p); |
e28d4618 | 1634 | if (stream->stream_event_header) |
13fad8b6 | 1635 | bt_definition_unref(&stream->stream_event_header->p); |
e28d4618 | 1636 | if (stream->stream_packet_context) |
13fad8b6 | 1637 | bt_definition_unref(&stream->stream_packet_context->p); |
888ec52a MD |
1638 | fprintf(stderr, "[error] Unable to create stream (%" PRIu64 ") definitions: %s\n", |
1639 | stream_class->stream_id, strerror(-ret)); | |
e28d4618 MD |
1640 | return ret; |
1641 | } | |
1642 | ||
5bfcad93 MD |
1643 | static |
1644 | int stream_assign_class(struct ctf_trace *td, | |
1645 | struct ctf_file_stream *file_stream, | |
1646 | uint64_t stream_id) | |
1647 | { | |
1648 | struct ctf_stream_declaration *stream; | |
1649 | int ret; | |
1650 | ||
1651 | file_stream->parent.stream_id = stream_id; | |
1652 | if (stream_id >= td->streams->len) { | |
1653 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); | |
1654 | return -EINVAL; | |
1655 | } | |
1656 | stream = g_ptr_array_index(td->streams, stream_id); | |
1657 | if (!stream) { | |
1658 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); | |
1659 | return -EINVAL; | |
1660 | } | |
1661 | file_stream->parent.stream_class = stream; | |
1662 | ret = create_stream_definitions(td, &file_stream->parent); | |
1663 | if (ret) | |
1664 | return ret; | |
1665 | return 0; | |
1666 | } | |
1667 | ||
0f980a35 | 1668 | static |
ec323464 MD |
1669 | int create_stream_one_packet_index(struct ctf_stream_pos *pos, |
1670 | struct ctf_trace *td, | |
1671 | struct ctf_file_stream *file_stream, | |
1672 | size_t filesize) | |
0f980a35 | 1673 | { |
ec323464 | 1674 | struct packet_index packet_index; |
ec323464 | 1675 | uint64_t stream_id = 0; |
653906a4 | 1676 | uint64_t packet_map_len = DEFAULT_HEADER_LEN, tmp_map_len; |
ec323464 | 1677 | int first_packet = 0; |
653906a4 | 1678 | int len_index; |
0f980a35 MD |
1679 | int ret; |
1680 | ||
ec323464 | 1681 | begin: |
c2e0c69b | 1682 | memset(&packet_index, 0, sizeof(packet_index)); |
ec323464 MD |
1683 | if (!pos->mmap_offset) { |
1684 | first_packet = 1; | |
1685 | } | |
8895362d | 1686 | |
ec323464 MD |
1687 | if (filesize - pos->mmap_offset < (packet_map_len >> LOG2_CHAR_BIT)) { |
1688 | packet_map_len = (filesize - pos->mmap_offset) << LOG2_CHAR_BIT; | |
1689 | } | |
0f980a35 | 1690 | |
ec323464 MD |
1691 | if (pos->base_mma) { |
1692 | /* unmap old base */ | |
1693 | ret = munmap_align(pos->base_mma); | |
1694 | if (ret) { | |
1695 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", | |
1696 | strerror(errno)); | |
1697 | return ret; | |
0f980a35 | 1698 | } |
ec323464 MD |
1699 | pos->base_mma = NULL; |
1700 | } | |
1701 | /* map new base. Need mapping length from header. */ | |
1702 | pos->base_mma = mmap_align(packet_map_len >> LOG2_CHAR_BIT, PROT_READ, | |
1703 | MAP_PRIVATE, pos->fd, pos->mmap_offset); | |
1704 | assert(pos->base_mma != MAP_FAILED); | |
1705 | /* | |
1706 | * Use current mapping size as temporary content and packet | |
1707 | * size. | |
1708 | */ | |
1709 | pos->content_size = packet_map_len; | |
1710 | pos->packet_size = packet_map_len; | |
1711 | pos->offset = 0; /* Position of the packet header */ | |
1712 | ||
1713 | packet_index.offset = pos->mmap_offset; | |
ec323464 MD |
1714 | |
1715 | /* read and check header, set stream id (and check) */ | |
1716 | if (file_stream->parent.trace_packet_header) { | |
1717 | /* Read packet header */ | |
1718 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); | |
1719 | if (ret) { | |
1720 | if (ret == -EFAULT) | |
1721 | goto retry; | |
888ec52a | 1722 | fprintf(stderr, "[error] Unable to read packet header: %s\n", strerror(-ret)); |
ec323464 MD |
1723 | return ret; |
1724 | } | |
1725 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("magic")); | |
1726 | if (len_index >= 0) { | |
1727 | struct bt_definition *field; | |
1728 | uint64_t magic; | |
1729 | ||
1730 | field = bt_struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); | |
1731 | magic = bt_get_unsigned_int(field); | |
1732 | if (magic != CTF_MAGIC) { | |
1733 | fprintf(stderr, "[error] Invalid magic number 0x%" PRIX64 " at packet %u (file offset %zd).\n", | |
1734 | magic, | |
992e8cc0 | 1735 | file_stream->pos.packet_index->len, |
ec323464 MD |
1736 | (ssize_t) pos->mmap_offset); |
1737 | return -EINVAL; | |
0f980a35 | 1738 | } |
ec323464 | 1739 | } |
0f980a35 | 1740 | |
ec323464 MD |
1741 | /* check uuid */ |
1742 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("uuid")); | |
1743 | if (len_index >= 0) { | |
1744 | struct definition_array *defarray; | |
1745 | struct bt_definition *field; | |
1746 | uint64_t i; | |
1747 | uint8_t uuidval[BABELTRACE_UUID_LEN]; | |
0f980a35 | 1748 | |
ec323464 | 1749 | field = bt_struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
9a19a512 | 1750 | assert(field->declaration->id == BT_CTF_TYPE_ID_ARRAY); |
ec323464 MD |
1751 | defarray = container_of(field, struct definition_array, p); |
1752 | assert(bt_array_len(defarray) == BABELTRACE_UUID_LEN); | |
0f980a35 | 1753 | |
ec323464 MD |
1754 | for (i = 0; i < BABELTRACE_UUID_LEN; i++) { |
1755 | struct bt_definition *elem; | |
0f980a35 | 1756 | |
ec323464 MD |
1757 | elem = bt_array_index(defarray, i); |
1758 | uuidval[i] = bt_get_unsigned_int(elem); | |
0f980a35 | 1759 | } |
19dd40db | 1760 | ret = bt_uuid_compare(td->uuid, uuidval); |
ec323464 MD |
1761 | if (ret) { |
1762 | fprintf(stderr, "[error] Unique Universal Identifiers do not match.\n"); | |
1763 | return -EINVAL; | |
1764 | } | |
1765 | } | |
0f980a35 | 1766 | |
ec323464 MD |
1767 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("stream_id")); |
1768 | if (len_index >= 0) { | |
1769 | struct bt_definition *field; | |
0f980a35 | 1770 | |
ec323464 MD |
1771 | field = bt_struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
1772 | stream_id = bt_get_unsigned_int(field); | |
0f980a35 | 1773 | } |
ec323464 | 1774 | } |
0f980a35 | 1775 | |
ec323464 MD |
1776 | if (!first_packet && file_stream->parent.stream_id != stream_id) { |
1777 | fprintf(stderr, "[error] Stream ID is changing within a stream: expecting %" PRIu64 ", but packet has %" PRIu64 "\n", | |
1778 | stream_id, | |
1779 | file_stream->parent.stream_id); | |
1780 | return -EINVAL; | |
1781 | } | |
1782 | if (first_packet) { | |
5bfcad93 | 1783 | ret = stream_assign_class(td, file_stream, stream_id); |
ec323464 MD |
1784 | if (ret) |
1785 | return ret; | |
1786 | } | |
dc48ecad | 1787 | |
ec323464 MD |
1788 | if (file_stream->parent.stream_packet_context) { |
1789 | /* Read packet context */ | |
1790 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); | |
1791 | if (ret) { | |
1792 | if (ret == -EFAULT) | |
1793 | goto retry; | |
888ec52a | 1794 | fprintf(stderr, "[error] Unable to read packet context: %s\n", strerror(-ret)); |
ec323464 MD |
1795 | return ret; |
1796 | } | |
95b34f38 MD |
1797 | /* read packet size from header */ |
1798 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("packet_size")); | |
ec323464 MD |
1799 | if (len_index >= 0) { |
1800 | struct bt_definition *field; | |
dc48ecad | 1801 | |
ec323464 | 1802 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
95b34f38 | 1803 | packet_index.packet_size = bt_get_unsigned_int(field); |
ec323464 MD |
1804 | } else { |
1805 | /* Use file size for packet size */ | |
95b34f38 | 1806 | packet_index.packet_size = filesize * CHAR_BIT; |
ec323464 | 1807 | } |
75cc2c35 | 1808 | |
95b34f38 MD |
1809 | /* read content size from header */ |
1810 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("content_size")); | |
ec323464 MD |
1811 | if (len_index >= 0) { |
1812 | struct bt_definition *field; | |
75cc2c35 | 1813 | |
ec323464 | 1814 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
95b34f38 | 1815 | packet_index.content_size = bt_get_unsigned_int(field); |
ec323464 | 1816 | } else { |
95b34f38 MD |
1817 | /* Use packet size if non-zero, else file size */ |
1818 | packet_index.content_size = packet_index.packet_size ? : filesize * CHAR_BIT; | |
ec323464 | 1819 | } |
41e82e00 | 1820 | |
ec323464 MD |
1821 | /* read timestamp begin from header */ |
1822 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_begin")); | |
1823 | if (len_index >= 0) { | |
1824 | struct bt_definition *field; | |
41e82e00 | 1825 | |
ec323464 | 1826 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
992e8cc0 | 1827 | packet_index.ts_cycles.timestamp_begin = bt_get_unsigned_int(field); |
4c62e2d8 | 1828 | if (file_stream->parent.stream_class->trace->parent.collection) { |
992e8cc0 | 1829 | packet_index.ts_real.timestamp_begin = |
ec323464 MD |
1830 | ctf_get_real_timestamp( |
1831 | &file_stream->parent, | |
992e8cc0 | 1832 | packet_index.ts_cycles.timestamp_begin); |
41e82e00 | 1833 | } |
0f980a35 | 1834 | } |
546293fa | 1835 | |
ec323464 MD |
1836 | /* read timestamp end from header */ |
1837 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_end")); | |
1838 | if (len_index >= 0) { | |
1839 | struct bt_definition *field; | |
1840 | ||
1841 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); | |
992e8cc0 | 1842 | packet_index.ts_cycles.timestamp_end = bt_get_unsigned_int(field); |
4c62e2d8 | 1843 | if (file_stream->parent.stream_class->trace->parent.collection) { |
992e8cc0 | 1844 | packet_index.ts_real.timestamp_end = |
ec323464 MD |
1845 | ctf_get_real_timestamp( |
1846 | &file_stream->parent, | |
992e8cc0 | 1847 | packet_index.ts_cycles.timestamp_end); |
ec323464 | 1848 | } |
546293fa MD |
1849 | } |
1850 | ||
ec323464 MD |
1851 | /* read events discarded from header */ |
1852 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("events_discarded")); | |
1853 | if (len_index >= 0) { | |
1854 | struct bt_definition *field; | |
1855 | ||
1856 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); | |
1857 | packet_index.events_discarded = bt_get_unsigned_int(field); | |
1858 | packet_index.events_discarded_len = bt_get_int_len(field); | |
546293fa | 1859 | } |
6246fd54 JD |
1860 | |
1861 | /* read packet_seq_num from header */ | |
1862 | len_index = bt_struct_declaration_lookup_field_index( | |
1863 | file_stream->parent.stream_packet_context->declaration, | |
1864 | g_quark_from_static_string("packet_seq_num")); | |
1865 | if (len_index >= 0) { | |
1866 | struct bt_definition *field; | |
1867 | ||
1868 | field = bt_struct_definition_get_field_from_index( | |
1869 | file_stream->parent.stream_packet_context, | |
1870 | len_index); | |
1871 | packet_index.packet_seq_num = bt_get_unsigned_int(field); | |
1872 | } | |
ec323464 MD |
1873 | } else { |
1874 | /* Use file size for packet size */ | |
2d686891 MD |
1875 | packet_index.packet_size = filesize * CHAR_BIT; |
1876 | /* Use packet size if non-zero, else file size */ | |
1877 | packet_index.content_size = packet_index.packet_size ? : filesize * CHAR_BIT; | |
ec323464 MD |
1878 | } |
1879 | ||
1880 | /* Validate content size and packet size values */ | |
1881 | if (packet_index.content_size > packet_index.packet_size) { | |
1882 | fprintf(stderr, "[error] Content size (%" PRIu64 " bits) is larger than packet size (%" PRIu64 " bits).\n", | |
1883 | packet_index.content_size, packet_index.packet_size); | |
1884 | return -EINVAL; | |
1885 | } | |
1886 | ||
1887 | if (packet_index.packet_size > ((uint64_t) filesize - packet_index.offset) * CHAR_BIT) { | |
1888 | fprintf(stderr, "[error] Packet size (%" PRIu64 " bits) is larger than remaining file size (%" PRIu64 " bits).\n", | |
1889 | packet_index.packet_size, ((uint64_t) filesize - packet_index.offset) * CHAR_BIT); | |
1890 | return -EINVAL; | |
1891 | } | |
546293fa | 1892 | |
a7ac9efd MD |
1893 | if (packet_index.content_size < pos->offset) { |
1894 | fprintf(stderr, "[error] Invalid CTF stream: content size is smaller than packet headers.\n"); | |
1895 | return -EINVAL; | |
1896 | } | |
1897 | ||
2d686891 MD |
1898 | if ((packet_index.packet_size >> LOG2_CHAR_BIT) == 0) { |
1899 | fprintf(stderr, "[error] Invalid CTF stream: packet size needs to be at least one byte\n"); | |
1900 | return -EINVAL; | |
1901 | } | |
1902 | ||
ec323464 MD |
1903 | /* Save position after header and context */ |
1904 | packet_index.data_offset = pos->offset; | |
0f980a35 | 1905 | |
ec323464 | 1906 | /* add index to packet array */ |
992e8cc0 | 1907 | g_array_append_val(file_stream->pos.packet_index, packet_index); |
0f980a35 | 1908 | |
ec323464 MD |
1909 | pos->mmap_offset += packet_index.packet_size >> LOG2_CHAR_BIT; |
1910 | ||
1911 | return 0; | |
1912 | ||
1913 | /* Retry with larger mapping */ | |
1914 | retry: | |
1915 | if (packet_map_len == ((filesize - pos->mmap_offset) << LOG2_CHAR_BIT)) { | |
1916 | /* | |
1917 | * Reached EOF, but still expecting header/context data. | |
1918 | */ | |
1919 | fprintf(stderr, "[error] Reached end of file, but still expecting header or context fields.\n"); | |
1920 | return -EFAULT; | |
1921 | } | |
1922 | /* Double the mapping len, and retry */ | |
1923 | tmp_map_len = packet_map_len << 1; | |
1924 | if (tmp_map_len >> 1 != packet_map_len) { | |
1925 | /* Overflow */ | |
888ec52a | 1926 | fprintf(stderr, "[error] Packet mapping length overflow\n"); |
ec323464 | 1927 | return -EFAULT; |
0f980a35 | 1928 | } |
ec323464 MD |
1929 | packet_map_len = tmp_map_len; |
1930 | goto begin; | |
1931 | } | |
1932 | ||
1933 | static | |
1934 | int create_stream_packet_index(struct ctf_trace *td, | |
1935 | struct ctf_file_stream *file_stream) | |
1936 | { | |
1937 | struct ctf_stream_pos *pos; | |
1938 | struct stat filestats; | |
1939 | int ret; | |
1940 | ||
1941 | pos = &file_stream->pos; | |
0f980a35 | 1942 | |
ec323464 MD |
1943 | ret = fstat(pos->fd, &filestats); |
1944 | if (ret < 0) | |
1945 | return ret; | |
1946 | ||
5bfcad93 MD |
1947 | /* Deal with empty files */ |
1948 | if (!filestats.st_size) { | |
1949 | if (file_stream->parent.trace_packet_header | |
1950 | || file_stream->parent.stream_packet_context) { | |
1951 | /* | |
1952 | * We expect a trace packet header and/or stream packet | |
1953 | * context. Since a trace needs to have at least one | |
1954 | * packet, empty files are therefore not accepted. | |
1955 | */ | |
1956 | fprintf(stderr, "[error] Encountered an empty file, but expecting a trace packet header.\n"); | |
1957 | return -EINVAL; | |
1958 | } else { | |
1959 | /* | |
1960 | * Without trace packet header nor stream packet | |
1961 | * context, a one-packet trace can indeed be empty. This | |
1962 | * is only valid if there is only one stream class: 0. | |
1963 | */ | |
1964 | ret = stream_assign_class(td, file_stream, 0); | |
1965 | if (ret) | |
1966 | return ret; | |
1967 | return 0; | |
1968 | } | |
1969 | } | |
1970 | ||
ec323464 MD |
1971 | for (pos->mmap_offset = 0; pos->mmap_offset < filestats.st_size; ) { |
1972 | ret = create_stream_one_packet_index(pos, td, file_stream, | |
1973 | filestats.st_size); | |
1974 | if (ret) | |
1975 | return ret; | |
1976 | } | |
0f980a35 MD |
1977 | return 0; |
1978 | } | |
1979 | ||
e28d4618 | 1980 | static |
9e88d150 | 1981 | int create_trace_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream) |
e28d4618 MD |
1982 | { |
1983 | int ret; | |
1984 | ||
1985 | if (td->packet_header_decl) { | |
0d69b916 | 1986 | struct bt_definition *definition = |
e28d4618 MD |
1987 | td->packet_header_decl->p.definition_new(&td->packet_header_decl->p, |
1988 | stream->parent_def_scope, 0, 0, "trace.packet.header"); | |
1989 | if (!definition) { | |
1990 | ret = -EINVAL; | |
1991 | goto error; | |
1992 | } | |
9a19a512 | 1993 | stream->trace_packet_header = |
e28d4618 MD |
1994 | container_of(definition, struct definition_struct, p); |
1995 | stream->parent_def_scope = stream->trace_packet_header->p.scope; | |
1996 | } | |
1997 | ||
1998 | return 0; | |
1999 | ||
2000 | error: | |
888ec52a | 2001 | fprintf(stderr, "[error] Unable to create trace definitions: %s\n", strerror(-ret)); |
e28d4618 MD |
2002 | return ret; |
2003 | } | |
2004 | ||
0ace7505 JD |
2005 | static |
2006 | int import_stream_packet_index(struct ctf_trace *td, | |
2007 | struct ctf_file_stream *file_stream) | |
2008 | { | |
0ace7505 | 2009 | struct ctf_stream_pos *pos; |
3ecd366e | 2010 | struct ctf_packet_index *ctf_index = NULL; |
0ace7505 JD |
2011 | struct ctf_packet_index_file_hdr index_hdr; |
2012 | struct packet_index index; | |
480ef057 | 2013 | uint32_t packet_index_len, index_minor; |
0ace7505 JD |
2014 | int ret = 0; |
2015 | int first_packet = 1; | |
2016 | size_t len; | |
2017 | ||
2018 | pos = &file_stream->pos; | |
2019 | ||
2020 | len = fread(&index_hdr, sizeof(index_hdr), 1, pos->index_fp); | |
2021 | if (len != 1) { | |
2022 | perror("read index file header"); | |
2023 | goto error; | |
2024 | } | |
2025 | ||
2026 | /* Check the index header */ | |
2027 | if (be32toh(index_hdr.magic) != CTF_INDEX_MAGIC) { | |
2028 | fprintf(stderr, "[error] wrong index magic\n"); | |
2029 | ret = -1; | |
2030 | goto error; | |
2031 | } | |
2032 | if (be32toh(index_hdr.index_major) != CTF_INDEX_MAJOR) { | |
2b8dbf9a MJ |
2033 | fprintf(stderr, "[error] Incompatible index file %" PRIu32 |
2034 | ".%" PRIu32 ", supported %d.%d\n", | |
2035 | be32toh(index_hdr.index_major), | |
2036 | be32toh(index_hdr.index_minor), CTF_INDEX_MAJOR, | |
0ace7505 JD |
2037 | CTF_INDEX_MINOR); |
2038 | ret = -1; | |
2039 | goto error; | |
2040 | } | |
480ef057 JD |
2041 | index_minor = be32toh(index_hdr.index_minor); |
2042 | ||
e83ce12a JD |
2043 | packet_index_len = be32toh(index_hdr.packet_index_len); |
2044 | if (packet_index_len == 0) { | |
a74d9cb2 MD |
2045 | fprintf(stderr, "[error] Packet index length cannot be 0.\n"); |
2046 | ret = -1; | |
2047 | goto error; | |
2048 | } | |
3ecd366e MD |
2049 | /* |
2050 | * Allocate the index length found in header, not internal | |
2051 | * representation. | |
2052 | */ | |
e83ce12a JD |
2053 | ctf_index = g_malloc0(packet_index_len); |
2054 | while (fread(ctf_index, packet_index_len, 1, | |
ad40ac1a | 2055 | pos->index_fp) == 1) { |
0ace7505 | 2056 | uint64_t stream_id; |
51e0087f | 2057 | struct ctf_stream_declaration *stream = NULL; |
0ace7505 JD |
2058 | |
2059 | memset(&index, 0, sizeof(index)); | |
3ecd366e MD |
2060 | index.offset = be64toh(ctf_index->offset); |
2061 | index.packet_size = be64toh(ctf_index->packet_size); | |
2062 | index.content_size = be64toh(ctf_index->content_size); | |
2063 | index.ts_cycles.timestamp_begin = be64toh(ctf_index->timestamp_begin); | |
2064 | index.ts_cycles.timestamp_end = be64toh(ctf_index->timestamp_end); | |
2065 | index.events_discarded = be64toh(ctf_index->events_discarded); | |
0ace7505 | 2066 | index.events_discarded_len = 64; |
e69dd258 | 2067 | index.data_offset = -1; |
3ecd366e | 2068 | stream_id = be64toh(ctf_index->stream_id); |
480ef057 JD |
2069 | if (index_minor >= 1) { |
2070 | index.stream_instance_id = be64toh(ctf_index->stream_instance_id); | |
2071 | index.packet_seq_num = be64toh(ctf_index->packet_seq_num); | |
2072 | } | |
0ace7505 JD |
2073 | |
2074 | if (!first_packet) { | |
2075 | /* add index to packet array */ | |
992e8cc0 | 2076 | g_array_append_val(file_stream->pos.packet_index, index); |
0ace7505 JD |
2077 | continue; |
2078 | } | |
2079 | ||
2080 | file_stream->parent.stream_id = stream_id; | |
51e0087f JG |
2081 | if (stream_id < td->streams->len) { |
2082 | stream = g_ptr_array_index(td->streams, stream_id); | |
2083 | } | |
0ace7505 JD |
2084 | if (!stream) { |
2085 | fprintf(stderr, "[error] Stream %" PRIu64 | |
2086 | " is not declared in metadata.\n", | |
2087 | stream_id); | |
2088 | ret = -EINVAL; | |
2089 | goto error; | |
2090 | } | |
2091 | file_stream->parent.stream_class = stream; | |
2092 | ret = create_stream_definitions(td, &file_stream->parent); | |
2093 | if (ret) | |
2094 | goto error; | |
2095 | first_packet = 0; | |
2096 | /* add index to packet array */ | |
992e8cc0 | 2097 | g_array_append_val(file_stream->pos.packet_index, index); |
0ace7505 JD |
2098 | } |
2099 | ||
dae407df JD |
2100 | /* Index containing only the header. */ |
2101 | if (!file_stream->parent.stream_class) { | |
2102 | ret = -1; | |
2103 | goto error; | |
2104 | } | |
2105 | ||
0ace7505 JD |
2106 | ret = 0; |
2107 | ||
2108 | error: | |
3ecd366e | 2109 | g_free(ctf_index); |
0ace7505 JD |
2110 | return ret; |
2111 | } | |
2112 | ||
0f980a35 MD |
2113 | /* |
2114 | * Note: many file streams can inherit from the same stream class | |
2115 | * description (metadata). | |
2116 | */ | |
2117 | static | |
b086c01a | 2118 | int ctf_open_file_stream_read(struct ctf_trace *td, const char *path, int flags, |
1cf393f6 | 2119 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
b086c01a | 2120 | int whence)) |
0f980a35 | 2121 | { |
f824ae04 | 2122 | int ret, fd, closeret; |
0f980a35 | 2123 | struct ctf_file_stream *file_stream; |
ff075710 | 2124 | struct stat statbuf; |
0ace7505 | 2125 | char *index_name; |
0f980a35 | 2126 | |
ff075710 MD |
2127 | fd = openat(td->dirfd, path, flags); |
2128 | if (fd < 0) { | |
a569a564 | 2129 | perror("File stream openat()"); |
ff075710 | 2130 | ret = fd; |
0f980a35 | 2131 | goto error; |
a569a564 | 2132 | } |
ff075710 MD |
2133 | |
2134 | /* Don't try to mmap subdirectories. Skip them, return success. */ | |
2135 | ret = fstat(fd, &statbuf); | |
2136 | if (ret) { | |
2137 | perror("File stream fstat()"); | |
2138 | goto fstat_error; | |
2139 | } | |
2140 | if (S_ISDIR(statbuf.st_mode)) { | |
0ace7505 JD |
2141 | if (strncmp(path, "index", 5) != 0) { |
2142 | fprintf(stderr, "[warning] Skipping directory '%s' " | |
2143 | "found in trace\n", path); | |
2144 | } | |
ff075710 MD |
2145 | ret = 0; |
2146 | goto fd_is_dir_ok; | |
2147 | } | |
de52f946 MD |
2148 | if (!statbuf.st_size) { |
2149 | /** Skip empty files. */ | |
2150 | ret = 0; | |
2151 | goto fd_is_empty_file; | |
2152 | } | |
ff075710 | 2153 | |
0f980a35 | 2154 | file_stream = g_new0(struct ctf_file_stream, 1); |
3a25e036 | 2155 | file_stream->pos.last_offset = LAST_OFFSET_POISON; |
0ace7505 JD |
2156 | file_stream->pos.fd = -1; |
2157 | file_stream->pos.index_fp = NULL; | |
b086c01a | 2158 | |
87148dc7 MD |
2159 | strncpy(file_stream->parent.path, path, PATH_MAX); |
2160 | file_stream->parent.path[PATH_MAX - 1] = '\0'; | |
2161 | ||
06789ffd MD |
2162 | if (packet_seek) { |
2163 | file_stream->pos.packet_seek = packet_seek; | |
b086c01a | 2164 | } else { |
06789ffd | 2165 | fprintf(stderr, "[error] packet_seek function undefined.\n"); |
b086c01a JD |
2166 | ret = -1; |
2167 | goto error_def; | |
2168 | } | |
2169 | ||
ca334c72 | 2170 | ret = ctf_init_pos(&file_stream->pos, &td->parent, fd, flags); |
f824ae04 MD |
2171 | if (ret) |
2172 | goto error_def; | |
2d0bea29 | 2173 | ret = create_trace_definitions(td, &file_stream->parent); |
e28d4618 MD |
2174 | if (ret) |
2175 | goto error_def; | |
25ccc85b | 2176 | /* |
50052405 | 2177 | * For now, only a single clock per trace is supported. |
25ccc85b | 2178 | */ |
7ec78969 | 2179 | file_stream->parent.current_clock = td->parent.single_clock; |
0ace7505 JD |
2180 | |
2181 | /* | |
2182 | * Allocate the index name for this stream and try to open it. | |
2183 | */ | |
2184 | index_name = malloc((strlen(path) + sizeof(INDEX_PATH)) * sizeof(char)); | |
2185 | if (!index_name) { | |
2186 | fprintf(stderr, "[error] Cannot allocate index filename\n"); | |
de52f946 | 2187 | ret = -ENOMEM; |
0ace7505 | 2188 | goto error_def; |
888ec52a | 2189 | } |
0ace7505 JD |
2190 | snprintf(index_name, strlen(path) + sizeof(INDEX_PATH), |
2191 | INDEX_PATH, path); | |
2192 | ||
0bb657dc | 2193 | if (bt_faccessat(td->dirfd, td->parent.path, index_name, O_RDONLY, 0) < 0) { |
0ace7505 JD |
2194 | ret = create_stream_packet_index(td, file_stream); |
2195 | if (ret) { | |
2196 | fprintf(stderr, "[error] Stream index creation error.\n"); | |
2197 | goto error_index; | |
2198 | } | |
2199 | } else { | |
2200 | ret = openat(td->dirfd, index_name, flags); | |
2201 | if (ret < 0) { | |
2202 | perror("Index file openat()"); | |
2203 | ret = -1; | |
2204 | goto error_free; | |
2205 | } | |
2206 | file_stream->pos.index_fp = fdopen(ret, "r"); | |
2f0c6a52 MD |
2207 | if (!file_stream->pos.index_fp) { |
2208 | perror("fdopen() error"); | |
2209 | goto error_free; | |
2210 | } | |
0ace7505 JD |
2211 | ret = import_stream_packet_index(td, file_stream); |
2212 | if (ret) { | |
2213 | ret = -1; | |
2214 | goto error_index; | |
2215 | } | |
2216 | ret = fclose(file_stream->pos.index_fp); | |
2217 | if (ret < 0) { | |
2218 | perror("close index"); | |
2219 | goto error_free; | |
2220 | } | |
2221 | } | |
2222 | free(index_name); | |
2223 | ||
0f980a35 | 2224 | /* Add stream file to stream class */ |
2d0bea29 MD |
2225 | g_ptr_array_add(file_stream->parent.stream_class->streams, |
2226 | &file_stream->parent); | |
0f980a35 MD |
2227 | return 0; |
2228 | ||
2229 | error_index: | |
0ace7505 JD |
2230 | if (file_stream->pos.index_fp) { |
2231 | ret = fclose(file_stream->pos.index_fp); | |
2232 | if (ret < 0) { | |
2233 | perror("close index"); | |
2234 | } | |
2235 | } | |
2d0bea29 | 2236 | if (file_stream->parent.trace_packet_header) |
13fad8b6 | 2237 | bt_definition_unref(&file_stream->parent.trace_packet_header->p); |
0ace7505 JD |
2238 | error_free: |
2239 | free(index_name); | |
e28d4618 | 2240 | error_def: |
f824ae04 MD |
2241 | closeret = ctf_fini_pos(&file_stream->pos); |
2242 | if (closeret) { | |
2243 | fprintf(stderr, "Error on ctf_fini_pos\n"); | |
2244 | } | |
0f980a35 | 2245 | g_free(file_stream); |
de52f946 | 2246 | fd_is_empty_file: |
ff075710 MD |
2247 | fd_is_dir_ok: |
2248 | fstat_error: | |
f824ae04 MD |
2249 | closeret = close(fd); |
2250 | if (closeret) { | |
2251 | perror("Error on fd close"); | |
2252 | } | |
0f980a35 | 2253 | error: |
65102a8c MD |
2254 | return ret; |
2255 | } | |
2256 | ||
bbefb8dd | 2257 | static |
5b80ddfb | 2258 | int ctf_open_trace_read(struct ctf_trace *td, |
8c250d87 | 2259 | const char *path, int flags, |
1cf393f6 | 2260 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
ae23d232 | 2261 | int whence), FILE *metadata_fp) |
bbefb8dd | 2262 | { |
6514b4af | 2263 | struct ctf_scanner *scanner; |
f824ae04 | 2264 | int ret, closeret; |
65102a8c MD |
2265 | struct dirent *dirent; |
2266 | struct dirent *diriter; | |
2267 | size_t dirent_len; | |
6038c87e | 2268 | int pc_name_max; |
0ace7505 | 2269 | char *ext; |
bbefb8dd | 2270 | |
46322b33 | 2271 | td->flags = flags; |
bbefb8dd MD |
2272 | |
2273 | /* Open trace directory */ | |
46322b33 MD |
2274 | td->dir = opendir(path); |
2275 | if (!td->dir) { | |
6a6b384c | 2276 | fprintf(stderr, "[error] Unable to open trace directory \"%s\".\n", path); |
bbefb8dd MD |
2277 | ret = -ENOENT; |
2278 | goto error; | |
2279 | } | |
2280 | ||
46322b33 MD |
2281 | td->dirfd = open(path, 0); |
2282 | if (td->dirfd < 0) { | |
6a6b384c | 2283 | fprintf(stderr, "[error] Unable to open trace directory file descriptor for path \"%s\".\n", path); |
a569a564 MD |
2284 | perror("Trace directory open"); |
2285 | ret = -errno; | |
65102a8c MD |
2286 | goto error_dirfd; |
2287 | } | |
caf929fa MD |
2288 | strncpy(td->parent.path, path, sizeof(td->parent.path)); |
2289 | td->parent.path[sizeof(td->parent.path) - 1] = '\0'; | |
0f980a35 | 2290 | |
65102a8c MD |
2291 | /* |
2292 | * Keep the metadata file separate. | |
0c880b0a MD |
2293 | * Keep scanner object local to the open. We don't support |
2294 | * incremental metadata append for on-disk traces. | |
65102a8c | 2295 | */ |
6514b4af MD |
2296 | scanner = ctf_scanner_alloc(); |
2297 | if (!scanner) { | |
2298 | fprintf(stderr, "[error] Error allocating scanner\n"); | |
2299 | ret = -ENOMEM; | |
2300 | goto error_metadata; | |
2301 | } | |
0c880b0a | 2302 | ret = ctf_trace_metadata_read(td, metadata_fp, scanner, 0); |
6514b4af | 2303 | ctf_scanner_free(scanner); |
65102a8c | 2304 | if (ret) { |
251fc08c MD |
2305 | if (ret == -ENOENT) { |
2306 | fprintf(stderr, "[warning] Empty metadata.\n"); | |
2307 | } | |
6a6b384c | 2308 | fprintf(stderr, "[warning] Unable to open trace metadata for path \"%s\".\n", path); |
65102a8c MD |
2309 | goto error_metadata; |
2310 | } | |
bbefb8dd MD |
2311 | |
2312 | /* | |
2313 | * Open each stream: for each file, try to open, check magic | |
2314 | * number, and get the stream ID to add to the right location in | |
2315 | * the stream array. | |
bbefb8dd MD |
2316 | */ |
2317 | ||
6038c87e MJ |
2318 | pc_name_max = fpathconf(td->dirfd, _PC_NAME_MAX); |
2319 | if (pc_name_max < 0) { | |
2320 | perror("Error on fpathconf"); | |
2321 | fprintf(stderr, "[error] Failed to get _PC_NAME_MAX for path \"%s\".\n", path); | |
2322 | ret = -1; | |
2323 | goto error_metadata; | |
2324 | } | |
2325 | ||
2326 | dirent_len = offsetof(struct dirent, d_name) + pc_name_max + 1; | |
bbefb8dd | 2327 | |
65102a8c | 2328 | dirent = malloc(dirent_len); |
bbefb8dd | 2329 | |
65102a8c | 2330 | for (;;) { |
46322b33 | 2331 | ret = readdir_r(td->dir, dirent, &diriter); |
65102a8c | 2332 | if (ret) { |
3394d22e | 2333 | fprintf(stderr, "[error] Readdir error.\n"); |
65102a8c | 2334 | goto readdir_error; |
65102a8c MD |
2335 | } |
2336 | if (!diriter) | |
2337 | break; | |
d8ea2d29 MD |
2338 | /* Ignore hidden files, ., .. and metadata. */ |
2339 | if (!strncmp(diriter->d_name, ".", 1) | |
65102a8c MD |
2340 | || !strcmp(diriter->d_name, "..") |
2341 | || !strcmp(diriter->d_name, "metadata")) | |
2342 | continue; | |
0ace7505 JD |
2343 | |
2344 | /* Ignore index files : *.idx */ | |
2345 | ext = strrchr(diriter->d_name, '.'); | |
2346 | if (ext && (!strcmp(ext, ".idx"))) { | |
2347 | continue; | |
2348 | } | |
2349 | ||
06789ffd MD |
2350 | ret = ctf_open_file_stream_read(td, diriter->d_name, |
2351 | flags, packet_seek); | |
dc48ecad | 2352 | if (ret) { |
3394d22e | 2353 | fprintf(stderr, "[error] Open file stream error.\n"); |
dc48ecad MD |
2354 | goto readdir_error; |
2355 | } | |
65102a8c | 2356 | } |
bbefb8dd | 2357 | |
65102a8c | 2358 | free(dirent); |
bbefb8dd | 2359 | return 0; |
65102a8c MD |
2360 | |
2361 | readdir_error: | |
2362 | free(dirent); | |
2363 | error_metadata: | |
f824ae04 MD |
2364 | closeret = close(td->dirfd); |
2365 | if (closeret) { | |
2366 | perror("Error on fd close"); | |
2367 | } | |
65102a8c | 2368 | error_dirfd: |
f824ae04 MD |
2369 | closeret = closedir(td->dir); |
2370 | if (closeret) { | |
2371 | perror("Error on closedir"); | |
2372 | } | |
bbefb8dd MD |
2373 | error: |
2374 | return ret; | |
2375 | } | |
2376 | ||
03798a93 JD |
2377 | /* |
2378 | * ctf_open_trace: Open a CTF trace and index it. | |
2379 | * Note that the user must seek the trace after the open (using the iterator) | |
2380 | * since the index creation read it entirely. | |
2381 | */ | |
e9378815 | 2382 | static |
1b8455b7 | 2383 | struct bt_trace_descriptor *ctf_open_trace(const char *path, int flags, |
1cf393f6 | 2384 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
ae23d232 | 2385 | int whence), FILE *metadata_fp) |
bbefb8dd | 2386 | { |
46322b33 | 2387 | struct ctf_trace *td; |
bbefb8dd MD |
2388 | int ret; |
2389 | ||
2715de36 MD |
2390 | /* |
2391 | * If packet_seek is NULL, we provide our default version. | |
2392 | */ | |
2393 | if (!packet_seek) | |
2394 | packet_seek = ctf_packet_seek; | |
2395 | ||
46322b33 | 2396 | td = g_new0(struct ctf_trace, 1); |
bbefb8dd | 2397 | |
8c572eba | 2398 | switch (flags & O_ACCMODE) { |
bbefb8dd | 2399 | case O_RDONLY: |
b61922b5 | 2400 | if (!path) { |
3394d22e | 2401 | fprintf(stderr, "[error] Path missing for input CTF trace.\n"); |
b61922b5 MD |
2402 | goto error; |
2403 | } | |
06789ffd | 2404 | ret = ctf_open_trace_read(td, path, flags, packet_seek, metadata_fp); |
bbefb8dd MD |
2405 | if (ret) |
2406 | goto error; | |
2407 | break; | |
989c73bc | 2408 | case O_RDWR: |
3394d22e | 2409 | fprintf(stderr, "[error] Opening CTF traces for output is not supported yet.\n"); |
46322b33 | 2410 | goto error; |
bbefb8dd | 2411 | default: |
3394d22e | 2412 | fprintf(stderr, "[error] Incorrect open flags.\n"); |
bbefb8dd MD |
2413 | goto error; |
2414 | } | |
2415 | ||
46322b33 | 2416 | return &td->parent; |
bbefb8dd MD |
2417 | error: |
2418 | g_free(td); | |
2419 | return NULL; | |
2420 | } | |
2421 | ||
2e937fb4 | 2422 | static |
f571dfb1 | 2423 | void ctf_init_mmap_pos(struct ctf_stream_pos *pos, |
c150f912 | 2424 | struct bt_mmap_stream *mmap_info) |
f571dfb1 JD |
2425 | { |
2426 | pos->mmap_offset = 0; | |
2427 | pos->packet_size = 0; | |
2428 | pos->content_size = 0; | |
2429 | pos->content_size_loc = NULL; | |
2430 | pos->fd = mmap_info->fd; | |
aee35fcc | 2431 | pos->base_mma = NULL; |
f571dfb1 JD |
2432 | pos->offset = 0; |
2433 | pos->dummy = false; | |
2434 | pos->cur_index = 0; | |
f571dfb1 JD |
2435 | pos->prot = PROT_READ; |
2436 | pos->flags = MAP_PRIVATE; | |
2437 | pos->parent.rw_table = read_dispatch_table; | |
2438 | pos->parent.event_cb = ctf_read_event; | |
731087d8 | 2439 | pos->priv = mmap_info->priv; |
f1f52630 MD |
2440 | pos->packet_index = g_array_new(FALSE, TRUE, |
2441 | sizeof(struct packet_index)); | |
f571dfb1 JD |
2442 | } |
2443 | ||
2444 | static | |
2445 | int prepare_mmap_stream_definition(struct ctf_trace *td, | |
5805251d JD |
2446 | struct ctf_file_stream *file_stream, |
2447 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, | |
2448 | int whence)) | |
f571dfb1 | 2449 | { |
f380e105 | 2450 | struct ctf_stream_declaration *stream; |
5805251d | 2451 | uint64_t stream_id; |
f571dfb1 JD |
2452 | int ret; |
2453 | ||
5805251d JD |
2454 | /* Ask for the first packet to get the stream_id. */ |
2455 | packet_seek(&file_stream->pos.parent, 0, SEEK_SET); | |
2456 | stream_id = file_stream->parent.stream_id; | |
f571dfb1 | 2457 | if (stream_id >= td->streams->len) { |
3394d22e | 2458 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared " |
f571dfb1 JD |
2459 | "in metadata.\n", stream_id); |
2460 | ret = -EINVAL; | |
2461 | goto end; | |
2462 | } | |
2463 | stream = g_ptr_array_index(td->streams, stream_id); | |
2464 | if (!stream) { | |
3394d22e | 2465 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared " |
f571dfb1 JD |
2466 | "in metadata.\n", stream_id); |
2467 | ret = -EINVAL; | |
2468 | goto end; | |
2469 | } | |
2470 | file_stream->parent.stream_class = stream; | |
2471 | ret = create_stream_definitions(td, &file_stream->parent); | |
2472 | end: | |
2473 | return ret; | |
2474 | } | |
2475 | ||
2476 | static | |
2477 | int ctf_open_mmap_stream_read(struct ctf_trace *td, | |
c150f912 | 2478 | struct bt_mmap_stream *mmap_info, |
1cf393f6 | 2479 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
f571dfb1 JD |
2480 | int whence)) |
2481 | { | |
2482 | int ret; | |
2483 | struct ctf_file_stream *file_stream; | |
2484 | ||
2485 | file_stream = g_new0(struct ctf_file_stream, 1); | |
5805251d | 2486 | file_stream->parent.stream_id = -1ULL; |
3a25e036 | 2487 | file_stream->pos.last_offset = LAST_OFFSET_POISON; |
f571dfb1 JD |
2488 | ctf_init_mmap_pos(&file_stream->pos, mmap_info); |
2489 | ||
06789ffd | 2490 | file_stream->pos.packet_seek = packet_seek; |
f571dfb1 JD |
2491 | |
2492 | ret = create_trace_definitions(td, &file_stream->parent); | |
2493 | if (ret) { | |
2494 | goto error_def; | |
2495 | } | |
2496 | ||
5805251d | 2497 | ret = prepare_mmap_stream_definition(td, file_stream, packet_seek); |
f571dfb1 JD |
2498 | if (ret) |
2499 | goto error_index; | |
2500 | ||
f7bbd502 | 2501 | /* |
50052405 | 2502 | * For now, only a single clock per trace is supported. |
f7bbd502 | 2503 | */ |
7ec78969 | 2504 | file_stream->parent.current_clock = td->parent.single_clock; |
f7bbd502 | 2505 | |
f571dfb1 JD |
2506 | /* Add stream file to stream class */ |
2507 | g_ptr_array_add(file_stream->parent.stream_class->streams, | |
2508 | &file_stream->parent); | |
2509 | return 0; | |
2510 | ||
2511 | error_index: | |
2512 | if (file_stream->parent.trace_packet_header) | |
13fad8b6 | 2513 | bt_definition_unref(&file_stream->parent.trace_packet_header->p); |
f571dfb1 JD |
2514 | error_def: |
2515 | g_free(file_stream); | |
2516 | return ret; | |
2517 | } | |
2518 | ||
2e937fb4 | 2519 | static |
f571dfb1 | 2520 | int ctf_open_mmap_trace_read(struct ctf_trace *td, |
c150f912 | 2521 | struct bt_mmap_stream_list *mmap_list, |
1cf393f6 | 2522 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
f571dfb1 JD |
2523 | int whence), |
2524 | FILE *metadata_fp) | |
2525 | { | |
2526 | int ret; | |
c150f912 | 2527 | struct bt_mmap_stream *mmap_info; |
f571dfb1 | 2528 | |
0c880b0a MD |
2529 | td->scanner = ctf_scanner_alloc(); |
2530 | if (!td->scanner) { | |
6514b4af MD |
2531 | fprintf(stderr, "[error] Error allocating scanner\n"); |
2532 | ret = -ENOMEM; | |
0c880b0a | 2533 | goto error; |
6514b4af | 2534 | } |
0c880b0a | 2535 | ret = ctf_trace_metadata_read(td, metadata_fp, td->scanner, 0); |
f571dfb1 | 2536 | if (ret) { |
251fc08c MD |
2537 | if (ret == -ENOENT) { |
2538 | fprintf(stderr, "[warning] Empty metadata.\n"); | |
2539 | } | |
f571dfb1 JD |
2540 | goto error; |
2541 | } | |
2542 | ||
2543 | /* | |
2544 | * for each stream, try to open, check magic number, and get the | |
2545 | * stream ID to add to the right location in the stream array. | |
2546 | */ | |
3122e6f0 | 2547 | bt_list_for_each_entry(mmap_info, &mmap_list->head, list) { |
06789ffd | 2548 | ret = ctf_open_mmap_stream_read(td, mmap_info, packet_seek); |
f571dfb1 | 2549 | if (ret) { |
3394d22e | 2550 | fprintf(stderr, "[error] Open file mmap stream error.\n"); |
f571dfb1 JD |
2551 | goto error; |
2552 | } | |
2553 | } | |
f571dfb1 JD |
2554 | return 0; |
2555 | ||
2556 | error: | |
0c880b0a | 2557 | ctf_scanner_free(td->scanner); |
f571dfb1 JD |
2558 | return ret; |
2559 | } | |
2560 | ||
2561 | static | |
1b8455b7 | 2562 | struct bt_trace_descriptor *ctf_open_mmap_trace( |
c150f912 | 2563 | struct bt_mmap_stream_list *mmap_list, |
1cf393f6 | 2564 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
20d0dcf9 | 2565 | int whence), |
f571dfb1 JD |
2566 | FILE *metadata_fp) |
2567 | { | |
2568 | struct ctf_trace *td; | |
2569 | int ret; | |
2570 | ||
2571 | if (!metadata_fp) { | |
2572 | fprintf(stderr, "[error] No metadata file pointer associated, " | |
2573 | "required for mmap parsing\n"); | |
2574 | goto error; | |
2575 | } | |
06789ffd MD |
2576 | if (!packet_seek) { |
2577 | fprintf(stderr, "[error] packet_seek function undefined.\n"); | |
f571dfb1 JD |
2578 | goto error; |
2579 | } | |
2580 | td = g_new0(struct ctf_trace, 1); | |
b5a1fa45 | 2581 | td->dirfd = -1; |
06789ffd | 2582 | ret = ctf_open_mmap_trace_read(td, mmap_list, packet_seek, metadata_fp); |
f571dfb1 JD |
2583 | if (ret) |
2584 | goto error_free; | |
2585 | ||
2586 | return &td->parent; | |
2587 | ||
2588 | error_free: | |
2589 | g_free(td); | |
2590 | error: | |
2591 | return NULL; | |
2592 | } | |
2593 | ||
0c880b0a MD |
2594 | int ctf_append_trace_metadata(struct bt_trace_descriptor *tdp, |
2595 | FILE *metadata_fp) | |
2596 | { | |
2597 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); | |
2598 | int i, j; | |
2599 | int ret; | |
2600 | ||
2601 | if (!td->scanner) | |
2602 | return -EINVAL; | |
2603 | ret = ctf_trace_metadata_read(td, metadata_fp, td->scanner, 1); | |
2604 | if (ret) | |
2605 | return ret; | |
2606 | /* for each stream_class */ | |
2607 | for (i = 0; i < td->streams->len; i++) { | |
2608 | struct ctf_stream_declaration *stream_class; | |
2609 | ||
2610 | stream_class = g_ptr_array_index(td->streams, i); | |
2611 | if (!stream_class) | |
2612 | continue; | |
2613 | /* for each stream */ | |
2614 | for (j = 0; j < stream_class->streams->len; j++) { | |
2615 | struct ctf_stream_definition *stream; | |
2616 | ||
2617 | stream = g_ptr_array_index(stream_class->streams, j); | |
2618 | if (!stream) | |
2619 | continue; | |
2620 | ret = copy_event_declarations_stream_class_to_stream(td, | |
2621 | stream_class, stream); | |
2622 | if (ret) | |
2623 | return ret; | |
2624 | } | |
2625 | } | |
2626 | return 0; | |
2627 | } | |
2628 | ||
03798a93 | 2629 | static |
1b8455b7 | 2630 | int ctf_convert_index_timestamp(struct bt_trace_descriptor *tdp) |
03798a93 JD |
2631 | { |
2632 | int i, j, k; | |
2633 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); | |
2634 | ||
2635 | /* for each stream_class */ | |
2636 | for (i = 0; i < td->streams->len; i++) { | |
2637 | struct ctf_stream_declaration *stream_class; | |
2638 | ||
2639 | stream_class = g_ptr_array_index(td->streams, i); | |
2640 | if (!stream_class) | |
2641 | continue; | |
2642 | /* for each file_stream */ | |
2643 | for (j = 0; j < stream_class->streams->len; j++) { | |
2644 | struct ctf_stream_definition *stream; | |
2645 | struct ctf_stream_pos *stream_pos; | |
2646 | struct ctf_file_stream *cfs; | |
2647 | ||
2648 | stream = g_ptr_array_index(stream_class->streams, j); | |
2649 | if (!stream) | |
2650 | continue; | |
2651 | cfs = container_of(stream, struct ctf_file_stream, | |
2652 | parent); | |
2653 | stream_pos = &cfs->pos; | |
992e8cc0 | 2654 | if (!stream_pos->packet_index) |
afe9cd4a JD |
2655 | continue; |
2656 | ||
992e8cc0 | 2657 | for (k = 0; k < stream_pos->packet_index->len; k++) { |
03798a93 | 2658 | struct packet_index *index; |
03798a93 | 2659 | |
992e8cc0 | 2660 | index = &g_array_index(stream_pos->packet_index, |
03798a93 | 2661 | struct packet_index, k); |
992e8cc0 | 2662 | index->ts_real.timestamp_begin = |
03798a93 | 2663 | ctf_get_real_timestamp(stream, |
992e8cc0 MD |
2664 | index->ts_cycles.timestamp_begin); |
2665 | index->ts_real.timestamp_end = | |
03798a93 | 2666 | ctf_get_real_timestamp(stream, |
992e8cc0 | 2667 | index->ts_cycles.timestamp_end); |
03798a93 JD |
2668 | } |
2669 | } | |
2670 | } | |
2671 | return 0; | |
2672 | } | |
2673 | ||
0f980a35 | 2674 | static |
f824ae04 | 2675 | int ctf_close_file_stream(struct ctf_file_stream *file_stream) |
0f980a35 | 2676 | { |
f824ae04 MD |
2677 | int ret; |
2678 | ||
2679 | ret = ctf_fini_pos(&file_stream->pos); | |
2680 | if (ret) { | |
2681 | fprintf(stderr, "Error on ctf_fini_pos\n"); | |
2682 | return -1; | |
2683 | } | |
500634be JD |
2684 | if (file_stream->pos.fd >= 0) { |
2685 | ret = close(file_stream->pos.fd); | |
2686 | if (ret) { | |
2687 | perror("Error closing file fd"); | |
2688 | return -1; | |
2689 | } | |
f824ae04 MD |
2690 | } |
2691 | return 0; | |
0f980a35 MD |
2692 | } |
2693 | ||
e9378815 | 2694 | static |
1b8455b7 | 2695 | int ctf_close_trace(struct bt_trace_descriptor *tdp) |
bbefb8dd | 2696 | { |
46322b33 | 2697 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); |
08c82b90 | 2698 | int ret; |
0f980a35 | 2699 | |
46322b33 | 2700 | if (td->streams) { |
08c82b90 MD |
2701 | int i; |
2702 | ||
46322b33 | 2703 | for (i = 0; i < td->streams->len; i++) { |
f380e105 | 2704 | struct ctf_stream_declaration *stream; |
0f980a35 | 2705 | int j; |
e9378815 | 2706 | |
46322b33 | 2707 | stream = g_ptr_array_index(td->streams, i); |
e9378815 MD |
2708 | if (!stream) |
2709 | continue; | |
2d0bea29 | 2710 | for (j = 0; j < stream->streams->len; j++) { |
0f980a35 | 2711 | struct ctf_file_stream *file_stream; |
15d4fe3c JD |
2712 | file_stream = container_of(g_ptr_array_index(stream->streams, j), |
2713 | struct ctf_file_stream, parent); | |
f824ae04 MD |
2714 | ret = ctf_close_file_stream(file_stream); |
2715 | if (ret) | |
2716 | return ret; | |
0f980a35 | 2717 | } |
e003ab50 | 2718 | } |
e003ab50 | 2719 | } |
15d4fe3c | 2720 | ctf_destroy_metadata(td); |
0c880b0a | 2721 | ctf_scanner_free(td->scanner); |
500634be JD |
2722 | if (td->dirfd >= 0) { |
2723 | ret = close(td->dirfd); | |
2724 | if (ret) { | |
2725 | perror("Error closing dirfd"); | |
2726 | return ret; | |
2727 | } | |
f824ae04 | 2728 | } |
500634be JD |
2729 | if (td->dir) { |
2730 | ret = closedir(td->dir); | |
2731 | if (ret) { | |
2732 | perror("Error closedir"); | |
2733 | return ret; | |
2734 | } | |
f824ae04 | 2735 | } |
7237592a | 2736 | free(td->metadata_string); |
bbefb8dd | 2737 | g_free(td); |
f824ae04 | 2738 | return 0; |
bbefb8dd MD |
2739 | } |
2740 | ||
98a04903 | 2741 | static |
1b8455b7 | 2742 | void ctf_set_context(struct bt_trace_descriptor *descriptor, |
98a04903 JD |
2743 | struct bt_context *ctx) |
2744 | { | |
2745 | struct ctf_trace *td = container_of(descriptor, struct ctf_trace, | |
2746 | parent); | |
2747 | ||
45807148 | 2748 | td->parent.ctx = ctx; |
98a04903 JD |
2749 | } |
2750 | ||
2751 | static | |
1b8455b7 | 2752 | void ctf_set_handle(struct bt_trace_descriptor *descriptor, |
98a04903 JD |
2753 | struct bt_trace_handle *handle) |
2754 | { | |
2755 | struct ctf_trace *td = container_of(descriptor, struct ctf_trace, | |
2756 | parent); | |
2757 | ||
4d086981 | 2758 | td->parent.handle = handle; |
98a04903 JD |
2759 | } |
2760 | ||
95febab3 | 2761 | static |
7fb21036 | 2762 | void __attribute__((constructor)) ctf_init(void) |
fc93b2bd MD |
2763 | { |
2764 | int ret; | |
2765 | ||
4c8bfb7e | 2766 | ctf_format.name = g_quark_from_static_string("ctf"); |
fc93b2bd MD |
2767 | ret = bt_register_format(&ctf_format); |
2768 | assert(!ret); | |
2769 | } | |
698f0fe4 | 2770 | |
95febab3 MD |
2771 | static |
2772 | void __attribute__((destructor)) ctf_exit(void) | |
2773 | { | |
2774 | bt_unregister_format(&ctf_format); | |
2775 | } |