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> | |
40af9f9f | 30 | #include <babeltrace/format-internal.h> |
fc93b2bd | 31 | #include <babeltrace/ctf/types.h> |
bbefb8dd | 32 | #include <babeltrace/ctf/metadata.h> |
70bd0a12 | 33 | #include <babeltrace/babeltrace-internal.h> |
e4195791 | 34 | #include <babeltrace/ctf/events-internal.h> |
98a04903 JD |
35 | #include <babeltrace/trace-handle-internal.h> |
36 | #include <babeltrace/context-internal.h> | |
4cb26dfb | 37 | #include <babeltrace/compat/uuid.h> |
43e34335 | 38 | #include <babeltrace/endian.h> |
2748fb3b | 39 | #include <babeltrace/trace-debug-info.h> |
0ace7505 | 40 | #include <babeltrace/ctf/ctf-index.h> |
0f980a35 | 41 | #include <inttypes.h> |
b4c19c1e | 42 | #include <stdio.h> |
0f980a35 | 43 | #include <sys/mman.h> |
bbefb8dd | 44 | #include <errno.h> |
bbefb8dd | 45 | #include <sys/types.h> |
65102a8c | 46 | #include <sys/stat.h> |
bbefb8dd | 47 | #include <fcntl.h> |
65102a8c | 48 | #include <dirent.h> |
bbefb8dd | 49 | #include <glib.h> |
65102a8c MD |
50 | #include <unistd.h> |
51 | #include <stdlib.h> | |
52 | ||
65102a8c MD |
53 | #include "metadata/ctf-scanner.h" |
54 | #include "metadata/ctf-parser.h" | |
55 | #include "metadata/ctf-ast.h" | |
c34ea0fa | 56 | #include "events-private.h" |
68ef7952 | 57 | #include <babeltrace/compat/memstream.h> |
a323afb2 | 58 | #include <babeltrace/compat/fcntl.h> |
65102a8c | 59 | |
ec323464 MD |
60 | #define LOG2_CHAR_BIT 3 |
61 | ||
62 | /* | |
63 | * Length of first attempt at mapping a packet header, in bits. | |
64 | */ | |
65 | #define DEFAULT_HEADER_LEN (getpagesize() * CHAR_BIT) | |
66 | ||
0f980a35 | 67 | /* |
ec323464 | 68 | * Lenght of packet to write, in bits. |
0f980a35 | 69 | */ |
8c572eba | 70 | #define WRITE_PACKET_LEN (getpagesize() * 8 * CHAR_BIT) |
0f980a35 | 71 | |
61cf588b | 72 | #define NSEC_PER_SEC 1000000000LL |
7d97fad9 | 73 | |
0ace7505 JD |
74 | #define INDEX_PATH "./index/%s.idx" |
75 | ||
03798a93 | 76 | int opt_clock_cycles, |
7d97fad9 MD |
77 | opt_clock_seconds, |
78 | opt_clock_date, | |
79 | opt_clock_gmt; | |
80 | ||
61cf588b MD |
81 | int64_t opt_clock_offset; |
82 | int64_t opt_clock_offset_ns; | |
7d97fad9 | 83 | |
65102a8c | 84 | extern int yydebug; |
05984e0c | 85 | char *opt_debug_info_dir; |
5cde0dc1 | 86 | char *opt_debug_info_target_prefix; |
bbefb8dd | 87 | |
2654fe9b MD |
88 | /* |
89 | * TODO: babeltrace_ctf_console_output ensures that we only print | |
90 | * discarded events when ctf-text plugin is used. Should be cleaned up | |
91 | * with the plugin system redesign. | |
92 | */ | |
93 | int babeltrace_ctf_console_output; | |
94 | ||
e9378815 | 95 | static |
1b8455b7 | 96 | struct bt_trace_descriptor *ctf_open_trace(const char *path, int flags, |
1cf393f6 | 97 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
20d0dcf9 MD |
98 | int whence), |
99 | FILE *metadata_fp); | |
e9378815 | 100 | static |
1b8455b7 | 101 | struct bt_trace_descriptor *ctf_open_mmap_trace( |
c150f912 | 102 | struct bt_mmap_stream_list *mmap_list, |
1cf393f6 | 103 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
20d0dcf9 | 104 | int whence), |
f571dfb1 | 105 | FILE *metadata_fp); |
98a04903 | 106 | static |
1b8455b7 | 107 | void ctf_set_context(struct bt_trace_descriptor *descriptor, |
98a04903 JD |
108 | struct bt_context *ctx); |
109 | static | |
1b8455b7 | 110 | void ctf_set_handle(struct bt_trace_descriptor *descriptor, |
98a04903 | 111 | struct bt_trace_handle *handle); |
f571dfb1 JD |
112 | |
113 | static | |
1b8455b7 | 114 | int ctf_close_trace(struct bt_trace_descriptor *descriptor); |
30c276af | 115 | static |
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 | ||
7e3e3582 JG |
162 | void bt_ctf_hook(void) |
163 | { | |
164 | /* | |
165 | * Dummy function to prevent the linker from discarding this format as | |
166 | * "unused" in static builds. | |
167 | */ | |
168 | } | |
169 | ||
30c276af | 170 | static |
61cf588b MD |
171 | int ctf_timestamp_begin(struct bt_trace_descriptor *descriptor, |
172 | struct bt_trace_handle *handle, enum bt_clock_type type, | |
173 | int64_t *timestamp) | |
30c276af JD |
174 | { |
175 | struct ctf_trace *tin; | |
61cf588b MD |
176 | int64_t begin = LLONG_MAX; |
177 | int i, j, ret; | |
30c276af JD |
178 | |
179 | tin = container_of(descriptor, struct ctf_trace, parent); | |
180 | ||
61cf588b MD |
181 | if (!tin || !timestamp) { |
182 | ret = -EINVAL; | |
30c276af | 183 | goto error; |
61cf588b | 184 | } |
30c276af JD |
185 | |
186 | /* for each stream_class */ | |
187 | for (i = 0; i < tin->streams->len; i++) { | |
188 | struct ctf_stream_declaration *stream_class; | |
189 | ||
190 | stream_class = g_ptr_array_index(tin->streams, i); | |
1b01ffc2 MD |
191 | if (!stream_class) |
192 | continue; | |
30c276af JD |
193 | /* for each file_stream */ |
194 | for (j = 0; j < stream_class->streams->len; j++) { | |
195 | struct ctf_stream_definition *stream; | |
196 | struct ctf_file_stream *cfs; | |
197 | struct ctf_stream_pos *stream_pos; | |
198 | struct packet_index *index; | |
199 | ||
200 | stream = g_ptr_array_index(stream_class->streams, j); | |
201 | cfs = container_of(stream, struct ctf_file_stream, | |
202 | parent); | |
203 | stream_pos = &cfs->pos; | |
204 | ||
61cf588b MD |
205 | if (!stream_pos->packet_index) { |
206 | ret = -EINVAL; | |
03798a93 | 207 | goto error; |
61cf588b | 208 | } |
03798a93 | 209 | |
992e8cc0 | 210 | if (stream_pos->packet_index->len <= 0) |
afe9cd4a JD |
211 | continue; |
212 | ||
992e8cc0 MD |
213 | index = &g_array_index(stream_pos->packet_index, |
214 | struct packet_index, | |
215 | stream_pos->packet_index->len - 1); | |
03798a93 | 216 | if (type == BT_CLOCK_REAL) { |
992e8cc0 MD |
217 | if (index->ts_real.timestamp_begin < begin) |
218 | begin = index->ts_real.timestamp_begin; | |
03798a93 | 219 | } else if (type == BT_CLOCK_CYCLES) { |
992e8cc0 MD |
220 | if (index->ts_cycles.timestamp_begin < begin) |
221 | begin = index->ts_cycles.timestamp_begin; | |
03798a93 | 222 | } else { |
61cf588b | 223 | ret = -EINVAL; |
03798a93 JD |
224 | goto error; |
225 | } | |
30c276af JD |
226 | } |
227 | } | |
61cf588b MD |
228 | if (begin == LLONG_MAX) { |
229 | ret = -ENOENT; | |
230 | goto error; | |
231 | } | |
232 | *timestamp = begin; | |
233 | return 0; | |
30c276af JD |
234 | |
235 | error: | |
61cf588b | 236 | return ret; |
30c276af JD |
237 | } |
238 | ||
239 | static | |
61cf588b MD |
240 | int ctf_timestamp_end(struct bt_trace_descriptor *descriptor, |
241 | struct bt_trace_handle *handle, enum bt_clock_type type, | |
242 | int64_t *timestamp) | |
30c276af JD |
243 | { |
244 | struct ctf_trace *tin; | |
61cf588b MD |
245 | int64_t end = LLONG_MIN; |
246 | int i, j, ret; | |
30c276af JD |
247 | |
248 | tin = container_of(descriptor, struct ctf_trace, parent); | |
249 | ||
61cf588b MD |
250 | if (!tin || !timestamp) { |
251 | ret = -EINVAL; | |
30c276af | 252 | goto error; |
61cf588b | 253 | } |
30c276af JD |
254 | |
255 | /* for each stream_class */ | |
256 | for (i = 0; i < tin->streams->len; i++) { | |
257 | struct ctf_stream_declaration *stream_class; | |
258 | ||
259 | stream_class = g_ptr_array_index(tin->streams, i); | |
1b01ffc2 MD |
260 | if (!stream_class) |
261 | continue; | |
30c276af JD |
262 | /* for each file_stream */ |
263 | for (j = 0; j < stream_class->streams->len; j++) { | |
264 | struct ctf_stream_definition *stream; | |
265 | struct ctf_file_stream *cfs; | |
266 | struct ctf_stream_pos *stream_pos; | |
267 | struct packet_index *index; | |
268 | ||
269 | stream = g_ptr_array_index(stream_class->streams, j); | |
270 | cfs = container_of(stream, struct ctf_file_stream, | |
271 | parent); | |
272 | stream_pos = &cfs->pos; | |
273 | ||
61cf588b MD |
274 | if (!stream_pos->packet_index) { |
275 | ret = -EINVAL; | |
03798a93 | 276 | goto error; |
61cf588b | 277 | } |
03798a93 | 278 | |
992e8cc0 | 279 | if (stream_pos->packet_index->len <= 0) |
afe9cd4a JD |
280 | continue; |
281 | ||
992e8cc0 MD |
282 | index = &g_array_index(stream_pos->packet_index, |
283 | struct packet_index, | |
284 | stream_pos->packet_index->len - 1); | |
03798a93 | 285 | if (type == BT_CLOCK_REAL) { |
992e8cc0 MD |
286 | if (index->ts_real.timestamp_end > end) |
287 | end = index->ts_real.timestamp_end; | |
03798a93 | 288 | } else if (type == BT_CLOCK_CYCLES) { |
992e8cc0 MD |
289 | if (index->ts_cycles.timestamp_end > end) |
290 | end = index->ts_cycles.timestamp_end; | |
03798a93 | 291 | } else { |
61cf588b | 292 | ret = -EINVAL; |
03798a93 JD |
293 | goto error; |
294 | } | |
30c276af JD |
295 | } |
296 | } | |
61cf588b MD |
297 | if (end == LLONG_MIN) { |
298 | ret = -ENOENT; | |
299 | goto error; | |
300 | } | |
301 | *timestamp = end; | |
302 | return 0; | |
30c276af JD |
303 | |
304 | error: | |
61cf588b | 305 | return ret; |
30c276af JD |
306 | } |
307 | ||
25ccc85b | 308 | /* |
03798a93 | 309 | * Update stream current timestamp |
25ccc85b | 310 | */ |
2b9a764d | 311 | static |
9e88d150 | 312 | void ctf_update_timestamp(struct ctf_stream_definition *stream, |
2b9a764d MD |
313 | struct definition_integer *integer_definition) |
314 | { | |
315 | struct declaration_integer *integer_declaration = | |
316 | integer_definition->declaration; | |
317 | uint64_t oldval, newval, updateval; | |
318 | ||
7f3f572b | 319 | if (unlikely(integer_declaration->len == 64)) { |
03798a93 | 320 | stream->cycles_timestamp = integer_definition->value._unsigned; |
03798a93 JD |
321 | stream->real_timestamp = ctf_get_real_timestamp(stream, |
322 | stream->cycles_timestamp); | |
2b9a764d MD |
323 | return; |
324 | } | |
325 | /* keep low bits */ | |
03798a93 | 326 | oldval = stream->cycles_timestamp; |
2b9a764d MD |
327 | oldval &= (1ULL << integer_declaration->len) - 1; |
328 | newval = integer_definition->value._unsigned; | |
329 | /* Test for overflow by comparing low bits */ | |
330 | if (newval < oldval) | |
331 | newval += 1ULL << integer_declaration->len; | |
332 | /* updateval contains old high bits, and new low bits (sum) */ | |
03798a93 | 333 | updateval = stream->cycles_timestamp; |
2b9a764d MD |
334 | updateval &= ~((1ULL << integer_declaration->len) - 1); |
335 | updateval += newval; | |
03798a93 JD |
336 | stream->cycles_timestamp = updateval; |
337 | ||
338 | /* convert to real timestamp */ | |
03798a93 JD |
339 | stream->real_timestamp = ctf_get_real_timestamp(stream, |
340 | stream->cycles_timestamp); | |
2b9a764d MD |
341 | } |
342 | ||
25ccc85b MD |
343 | /* |
344 | * Print timestamp, rescaling clock frequency to nanoseconds and | |
345 | * applying offsets as needed (unix time). | |
346 | */ | |
2e937fb4 | 347 | static |
03798a93 | 348 | void ctf_print_timestamp_real(FILE *fp, |
9e88d150 | 349 | struct ctf_stream_definition *stream, |
61cf588b | 350 | int64_t timestamp) |
7d97fad9 | 351 | { |
61cf588b MD |
352 | int64_t ts_sec = 0, ts_nsec; |
353 | uint64_t ts_sec_abs, ts_nsec_abs; | |
354 | bool is_negative; | |
7d97fad9 | 355 | |
03798a93 | 356 | ts_nsec = timestamp; |
7d97fad9 | 357 | |
61cf588b | 358 | /* Add command-line offset in ns */ |
65923160 IJ |
359 | ts_nsec += opt_clock_offset_ns; |
360 | ||
c34ea0fa | 361 | /* Add command-line offset */ |
7d97fad9 MD |
362 | ts_sec += opt_clock_offset; |
363 | ||
364 | ts_sec += ts_nsec / NSEC_PER_SEC; | |
365 | ts_nsec = ts_nsec % NSEC_PER_SEC; | |
61cf588b MD |
366 | if (ts_sec >= 0 && ts_nsec >= 0) { |
367 | is_negative = false; | |
368 | ts_sec_abs = ts_sec; | |
369 | ts_nsec_abs = ts_nsec; | |
370 | } else if (ts_sec > 0 && ts_nsec < 0) { | |
371 | is_negative = false; | |
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 if (ts_sec < 0 && ts_nsec > 0) { | |
379 | is_negative = true; | |
380 | ts_sec_abs = -(ts_sec + 1); | |
381 | ts_nsec_abs = NSEC_PER_SEC - ts_nsec; | |
382 | } else if (ts_sec < 0 && ts_nsec == 0) { | |
383 | is_negative = true; | |
384 | ts_sec_abs = -ts_sec; | |
385 | ts_nsec_abs = ts_nsec; | |
386 | } else { /* (ts_sec < 0 && ts_nsec < 0) */ | |
387 | is_negative = true; | |
388 | ts_sec_abs = -ts_sec; | |
389 | ts_nsec_abs = -ts_nsec; | |
390 | } | |
7d97fad9 MD |
391 | |
392 | if (!opt_clock_seconds) { | |
393 | struct tm tm; | |
61cf588b MD |
394 | time_t time_s = (time_t) ts_sec_abs; |
395 | ||
396 | if (is_negative) { | |
a0960c1c | 397 | fprintf(stderr, "[warning] Fallback to [sec.ns] to print negative time value. Use --clock-seconds.\n"); |
61cf588b MD |
398 | goto seconds; |
399 | } | |
7d97fad9 MD |
400 | |
401 | if (!opt_clock_gmt) { | |
402 | struct tm *res; | |
403 | ||
404 | res = localtime_r(&time_s, &tm); | |
405 | if (!res) { | |
406 | fprintf(stderr, "[warning] Unable to get localtime.\n"); | |
407 | goto seconds; | |
408 | } | |
409 | } else { | |
410 | struct tm *res; | |
411 | ||
412 | res = gmtime_r(&time_s, &tm); | |
413 | if (!res) { | |
414 | fprintf(stderr, "[warning] Unable to get gmtime.\n"); | |
415 | goto seconds; | |
416 | } | |
417 | } | |
418 | if (opt_clock_date) { | |
419 | char timestr[26]; | |
420 | size_t res; | |
421 | ||
422 | /* Print date and time */ | |
423 | res = strftime(timestr, sizeof(timestr), | |
424 | "%F ", &tm); | |
425 | if (!res) { | |
426 | fprintf(stderr, "[warning] Unable to print ascii time.\n"); | |
427 | goto seconds; | |
428 | } | |
429 | fprintf(fp, "%s", timestr); | |
430 | } | |
431 | /* Print time in HH:MM:SS.ns */ | |
432 | fprintf(fp, "%02d:%02d:%02d.%09" PRIu64, | |
61cf588b | 433 | tm.tm_hour, tm.tm_min, tm.tm_sec, ts_nsec_abs); |
7d97fad9 MD |
434 | goto end; |
435 | } | |
436 | seconds: | |
61cf588b MD |
437 | fprintf(fp, "%s%" PRId64 ".%09" PRIu64, |
438 | is_negative ? "-" : "", ts_sec_abs, ts_nsec_abs); | |
7d97fad9 MD |
439 | |
440 | end: | |
441 | return; | |
442 | } | |
443 | ||
03798a93 JD |
444 | /* |
445 | * Print timestamp, in cycles | |
446 | */ | |
2e937fb4 | 447 | static |
03798a93 JD |
448 | void ctf_print_timestamp_cycles(FILE *fp, |
449 | struct ctf_stream_definition *stream, | |
450 | uint64_t timestamp) | |
451 | { | |
452 | fprintf(fp, "%020" PRIu64, timestamp); | |
453 | } | |
454 | ||
455 | void ctf_print_timestamp(FILE *fp, | |
456 | struct ctf_stream_definition *stream, | |
61cf588b | 457 | int64_t timestamp) |
03798a93 JD |
458 | { |
459 | if (opt_clock_cycles) { | |
460 | ctf_print_timestamp_cycles(fp, stream, timestamp); | |
461 | } else { | |
462 | ctf_print_timestamp_real(fp, stream, timestamp); | |
463 | } | |
464 | } | |
465 | ||
87148dc7 MD |
466 | static |
467 | void print_uuid(FILE *fp, unsigned char *uuid) | |
468 | { | |
469 | int i; | |
470 | ||
471 | for (i = 0; i < BABELTRACE_UUID_LEN; i++) | |
472 | fprintf(fp, "%x", (unsigned int) uuid[i]); | |
473 | } | |
474 | ||
2654fe9b MD |
475 | /* |
476 | * Discarded events can be either: | |
477 | * - discarded after end of previous buffer due to buffer full: | |
478 | * happened within range: [ prev_timestamp_end, timestamp_begin ] | |
479 | * - discarded within current buffer due to either event too large or | |
480 | * nested wrap-around: | |
481 | * happened within range: [ timestamp_begin, timestamp_end ] | |
482 | * | |
483 | * Given we have discarded counters of those two types merged into the | |
484 | * events_discarded counter, we need to use the union of those ranges: | |
485 | * [ prev_timestamp_end, timestamp_end ] | |
6246fd54 JD |
486 | * |
487 | * Lost packets occur if the tracer overwrote some subbuffer(s) before the | |
488 | * consumer had time to extract them. We keep track of those gaps with the | |
489 | * packet sequence number in each packet. | |
2654fe9b MD |
490 | */ |
491 | static | |
6246fd54 | 492 | void ctf_print_discarded_lost(FILE *fp, struct ctf_stream_definition *stream) |
87148dc7 | 493 | { |
6246fd54 JD |
494 | if ((!stream->events_discarded && !stream->packets_lost) || |
495 | !babeltrace_ctf_console_output) { | |
2654fe9b MD |
496 | return; |
497 | } | |
498 | fflush(stdout); | |
6246fd54 JD |
499 | if (stream->events_discarded) { |
500 | fprintf(fp, "[warning] Tracer discarded %" PRIu64 " events between [", | |
501 | stream->events_discarded); | |
502 | } else if (stream->packets_lost) { | |
503 | fprintf(fp, "[warning] Tracer lost %" PRIu64 " trace packets between [", | |
504 | stream->packets_lost); | |
505 | } | |
87148dc7 MD |
506 | if (opt_clock_cycles) { |
507 | ctf_print_timestamp(fp, stream, | |
2654fe9b | 508 | stream->prev.cycles.end); |
87148dc7 MD |
509 | fprintf(fp, "] and ["); |
510 | ctf_print_timestamp(fp, stream, | |
2654fe9b | 511 | stream->current.cycles.end); |
87148dc7 MD |
512 | } else { |
513 | ctf_print_timestamp(fp, stream, | |
2654fe9b | 514 | stream->prev.real.end); |
87148dc7 MD |
515 | fprintf(fp, "] and ["); |
516 | ctf_print_timestamp(fp, stream, | |
2654fe9b | 517 | stream->current.real.end); |
87148dc7 MD |
518 | } |
519 | fprintf(fp, "] in trace UUID "); | |
520 | print_uuid(fp, stream->stream_class->trace->uuid); | |
caf929fa | 521 | if (stream->stream_class->trace->parent.path[0]) |
87148dc7 | 522 | fprintf(fp, ", at path: \"%s\"", |
caf929fa | 523 | stream->stream_class->trace->parent.path); |
87148dc7 MD |
524 | |
525 | fprintf(fp, ", within stream id %" PRIu64, stream->stream_id); | |
526 | if (stream->path[0]) | |
527 | fprintf(fp, ", at relative path: \"%s\"", stream->path); | |
528 | fprintf(fp, ". "); | |
529 | fprintf(fp, "You should consider recording a new trace with larger " | |
530 | "buffers or with fewer events enabled.\n"); | |
531 | fflush(fp); | |
532 | } | |
533 | ||
31262354 | 534 | static |
1cf393f6 | 535 | int ctf_read_event(struct bt_stream_pos *ppos, struct ctf_stream_definition *stream) |
31262354 MD |
536 | { |
537 | struct ctf_stream_pos *pos = | |
538 | container_of(ppos, struct ctf_stream_pos, parent); | |
f380e105 | 539 | struct ctf_stream_declaration *stream_class = stream->stream_class; |
c716f83b | 540 | struct ctf_event_definition *event; |
31262354 | 541 | uint64_t id = 0; |
31262354 MD |
542 | int ret; |
543 | ||
3abe83c7 MD |
544 | /* We need to check for EOF here for empty files. */ |
545 | if (unlikely(pos->offset == EOF)) | |
546 | return EOF; | |
547 | ||
5f643ed7 MD |
548 | ctf_pos_get_event(pos); |
549 | ||
90fcbacc JD |
550 | /* save the current position as a restore point */ |
551 | pos->last_offset = pos->offset; | |
90fcbacc | 552 | |
3abe83c7 MD |
553 | /* |
554 | * This is the EOF check after we've advanced the position in | |
555 | * ctf_pos_get_event. | |
556 | */ | |
7f3f572b | 557 | if (unlikely(pos->offset == EOF)) |
31262354 | 558 | return EOF; |
8793d9f8 | 559 | |
500634be JD |
560 | /* Stream is inactive for now (live reading). */ |
561 | if (unlikely(pos->content_size == 0)) | |
8793d9f8 | 562 | return EAGAIN; |
500634be JD |
563 | |
564 | /* | |
565 | * Packet seeked to by ctf_pos_get_event() only contains | |
566 | * headers, no event. Consider stream as inactive (live | |
567 | * reading). | |
568 | */ | |
569 | if (unlikely(pos->data_offset == pos->content_size)) | |
a5260047 JD |
570 | return EAGAIN; |
571 | ||
5f643ed7 | 572 | assert(pos->offset < pos->content_size); |
31262354 MD |
573 | |
574 | /* Read event header */ | |
7f3f572b | 575 | if (likely(stream->stream_event_header)) { |
a35173fe | 576 | struct definition_integer *integer_definition; |
0d69b916 | 577 | struct bt_definition *variant; |
a35173fe | 578 | |
e28d4618 | 579 | ret = generic_rw(ppos, &stream->stream_event_header->p); |
7f3f572b | 580 | if (unlikely(ret)) |
31262354 MD |
581 | goto error; |
582 | /* lookup event id */ | |
bf78e2cf | 583 | integer_definition = bt_lookup_integer(&stream->stream_event_header->p, "id", FALSE); |
a35173fe MD |
584 | if (integer_definition) { |
585 | id = integer_definition->value._unsigned; | |
586 | } else { | |
587 | struct definition_enum *enum_definition; | |
588 | ||
9e3274b0 | 589 | enum_definition = bt_lookup_enum(&stream->stream_event_header->p, "id", FALSE); |
a35173fe MD |
590 | if (enum_definition) { |
591 | id = enum_definition->integer->value._unsigned; | |
592 | } | |
31262354 | 593 | } |
764af3f4 | 594 | |
ebae302b | 595 | variant = bt_lookup_variant(&stream->stream_event_header->p, "v"); |
ccdb988e | 596 | if (variant) { |
bf78e2cf | 597 | integer_definition = bt_lookup_integer(variant, "id", FALSE); |
ccdb988e MD |
598 | if (integer_definition) { |
599 | id = integer_definition->value._unsigned; | |
600 | } | |
601 | } | |
c87a8eb2 | 602 | stream->event_id = id; |
ccdb988e | 603 | |
764af3f4 | 604 | /* lookup timestamp */ |
5e2eb0ae | 605 | stream->has_timestamp = 0; |
bf78e2cf | 606 | integer_definition = bt_lookup_integer(&stream->stream_event_header->p, "timestamp", FALSE); |
a35173fe | 607 | if (integer_definition) { |
2b9a764d | 608 | ctf_update_timestamp(stream, integer_definition); |
5e2eb0ae | 609 | stream->has_timestamp = 1; |
a35173fe | 610 | } else { |
ccdb988e | 611 | if (variant) { |
bf78e2cf | 612 | integer_definition = bt_lookup_integer(variant, "timestamp", FALSE); |
a35173fe | 613 | if (integer_definition) { |
2b9a764d | 614 | ctf_update_timestamp(stream, integer_definition); |
5e2eb0ae | 615 | stream->has_timestamp = 1; |
a35173fe MD |
616 | } |
617 | } | |
764af3f4 | 618 | } |
31262354 MD |
619 | } |
620 | ||
621 | /* Read stream-declared event context */ | |
e28d4618 MD |
622 | if (stream->stream_event_context) { |
623 | ret = generic_rw(ppos, &stream->stream_event_context->p); | |
31262354 MD |
624 | if (ret) |
625 | goto error; | |
626 | } | |
627 | ||
7f3f572b | 628 | if (unlikely(id >= stream_class->events_by_id->len)) { |
3394d22e | 629 | fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id); |
31262354 MD |
630 | return -EINVAL; |
631 | } | |
e28d4618 | 632 | event = g_ptr_array_index(stream->events_by_id, id); |
7f3f572b | 633 | if (unlikely(!event)) { |
3394d22e | 634 | fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id); |
31262354 MD |
635 | return -EINVAL; |
636 | } | |
637 | ||
638 | /* Read event-declared event context */ | |
e28d4618 MD |
639 | if (event->event_context) { |
640 | ret = generic_rw(ppos, &event->event_context->p); | |
31262354 MD |
641 | if (ret) |
642 | goto error; | |
643 | } | |
644 | ||
645 | /* Read event payload */ | |
7f3f572b | 646 | if (likely(event->event_fields)) { |
e28d4618 | 647 | ret = generic_rw(ppos, &event->event_fields->p); |
31262354 MD |
648 | if (ret) |
649 | goto error; | |
650 | } | |
651 | ||
28f35f0a MD |
652 | if (pos->last_offset == pos->offset) { |
653 | fprintf(stderr, "[error] Invalid 0 byte event encountered.\n"); | |
654 | return -EINVAL; | |
655 | } | |
656 | ||
31262354 MD |
657 | return 0; |
658 | ||
659 | error: | |
64f5abe1 | 660 | 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 |
661 | return ret; |
662 | } | |
663 | ||
664 | static | |
1cf393f6 | 665 | int ctf_write_event(struct bt_stream_pos *pos, struct ctf_stream_definition *stream) |
31262354 | 666 | { |
f380e105 | 667 | struct ctf_stream_declaration *stream_class = stream->stream_class; |
c716f83b | 668 | struct ctf_event_definition *event; |
c87a8eb2 | 669 | uint64_t id; |
31262354 MD |
670 | int ret; |
671 | ||
c87a8eb2 MD |
672 | id = stream->event_id; |
673 | ||
31262354 | 674 | /* print event header */ |
7f3f572b | 675 | if (likely(stream->stream_event_header)) { |
e28d4618 | 676 | ret = generic_rw(pos, &stream->stream_event_header->p); |
31262354 MD |
677 | if (ret) |
678 | goto error; | |
679 | } | |
680 | ||
681 | /* print stream-declared event context */ | |
e28d4618 MD |
682 | if (stream->stream_event_context) { |
683 | ret = generic_rw(pos, &stream->stream_event_context->p); | |
31262354 MD |
684 | if (ret) |
685 | goto error; | |
686 | } | |
687 | ||
7f3f572b | 688 | if (unlikely(id >= stream_class->events_by_id->len)) { |
3394d22e | 689 | fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id); |
31262354 MD |
690 | return -EINVAL; |
691 | } | |
e28d4618 | 692 | event = g_ptr_array_index(stream->events_by_id, id); |
7f3f572b | 693 | if (unlikely(!event)) { |
3394d22e | 694 | fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id); |
31262354 MD |
695 | return -EINVAL; |
696 | } | |
697 | ||
698 | /* print event-declared event context */ | |
e28d4618 MD |
699 | if (event->event_context) { |
700 | ret = generic_rw(pos, &event->event_context->p); | |
31262354 MD |
701 | if (ret) |
702 | goto error; | |
703 | } | |
704 | ||
705 | /* Read and print event payload */ | |
7f3f572b | 706 | if (likely(event->event_fields)) { |
e28d4618 | 707 | ret = generic_rw(pos, &event->event_fields->p); |
31262354 MD |
708 | if (ret) |
709 | goto error; | |
710 | } | |
711 | ||
712 | return 0; | |
713 | ||
714 | error: | |
3394d22e | 715 | 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 |
716 | return ret; |
717 | } | |
718 | ||
e69dd258 JD |
719 | /* |
720 | * One side-effect of this function is to unmap pos mmap base if one is | |
721 | * mapped. | |
722 | */ | |
723 | static | |
724 | int find_data_offset(struct ctf_stream_pos *pos, | |
725 | struct ctf_file_stream *file_stream, | |
726 | struct packet_index *packet_index) | |
727 | { | |
728 | uint64_t packet_map_len = DEFAULT_HEADER_LEN, tmp_map_len; | |
729 | struct stat filestats; | |
730 | size_t filesize; | |
731 | int ret; | |
732 | ||
733 | pos = &file_stream->pos; | |
734 | ||
735 | ret = fstat(pos->fd, &filestats); | |
736 | if (ret < 0) | |
737 | return ret; | |
738 | filesize = filestats.st_size; | |
739 | ||
740 | /* Deal with empty files */ | |
741 | if (!filesize) { | |
742 | return 0; | |
743 | } | |
744 | ||
745 | begin: | |
746 | if (filesize - pos->mmap_offset < (packet_map_len >> LOG2_CHAR_BIT)) { | |
747 | packet_map_len = (filesize - pos->mmap_offset) << LOG2_CHAR_BIT; | |
748 | } | |
749 | ||
750 | if (pos->base_mma) { | |
751 | /* unmap old base */ | |
752 | ret = munmap_align(pos->base_mma); | |
753 | if (ret) { | |
754 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", | |
755 | strerror(errno)); | |
756 | return ret; | |
757 | } | |
758 | pos->base_mma = NULL; | |
759 | } | |
760 | /* map new base. Need mapping length from header. */ | |
761 | pos->base_mma = mmap_align(packet_map_len >> LOG2_CHAR_BIT, PROT_READ, | |
762 | MAP_PRIVATE, pos->fd, pos->mmap_offset); | |
763 | assert(pos->base_mma != MAP_FAILED); | |
764 | ||
765 | pos->content_size = packet_map_len; | |
766 | pos->packet_size = packet_map_len; | |
767 | pos->offset = 0; /* Position of the packet header */ | |
768 | ||
769 | /* update trace_packet_header and stream_packet_context */ | |
770 | if (pos->prot == PROT_READ && file_stream->parent.trace_packet_header) { | |
771 | /* Read packet header */ | |
772 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); | |
773 | if (ret) { | |
774 | if (ret == -EFAULT) | |
775 | goto retry; | |
776 | } | |
777 | } | |
778 | if (pos->prot == PROT_READ && file_stream->parent.stream_packet_context) { | |
779 | /* Read packet context */ | |
780 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); | |
781 | if (ret) { | |
782 | if (ret == -EFAULT) | |
783 | goto retry; | |
784 | } | |
785 | } | |
786 | packet_index->data_offset = pos->offset; | |
787 | ||
788 | /* unmap old base */ | |
789 | ret = munmap_align(pos->base_mma); | |
790 | if (ret) { | |
791 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", | |
792 | strerror(errno)); | |
793 | return ret; | |
794 | } | |
795 | pos->base_mma = NULL; | |
796 | ||
797 | return 0; | |
798 | ||
799 | /* Retry with larger mapping */ | |
800 | retry: | |
801 | if (packet_map_len == ((filesize - pos->mmap_offset) << LOG2_CHAR_BIT)) { | |
802 | /* | |
803 | * Reached EOF, but still expecting header/context data. | |
804 | */ | |
805 | fprintf(stderr, "[error] Reached end of file, but still expecting header or context fields.\n"); | |
806 | return -EFAULT; | |
807 | } | |
808 | /* Double the mapping len, and retry */ | |
809 | tmp_map_len = packet_map_len << 1; | |
810 | if (tmp_map_len >> 1 != packet_map_len) { | |
811 | /* Overflow */ | |
812 | fprintf(stderr, "[error] Packet mapping length overflow\n"); | |
813 | return -EFAULT; | |
814 | } | |
815 | packet_map_len = tmp_map_len; | |
816 | goto begin; | |
817 | } | |
818 | ||
819 | ||
ca334c72 MD |
820 | int ctf_init_pos(struct ctf_stream_pos *pos, struct bt_trace_descriptor *trace, |
821 | int fd, int open_flags) | |
8c572eba MD |
822 | { |
823 | pos->fd = fd; | |
37fcdd19 | 824 | if (fd >= 0) { |
992e8cc0 | 825 | pos->packet_index = g_array_new(FALSE, TRUE, |
37fcdd19 JD |
826 | sizeof(struct packet_index)); |
827 | } else { | |
992e8cc0 | 828 | pos->packet_index = NULL; |
37fcdd19 | 829 | } |
8563e754 MD |
830 | switch (open_flags & O_ACCMODE) { |
831 | case O_RDONLY: | |
832 | pos->prot = PROT_READ; | |
833 | pos->flags = MAP_PRIVATE; | |
834 | pos->parent.rw_table = read_dispatch_table; | |
31262354 | 835 | pos->parent.event_cb = ctf_read_event; |
ca334c72 | 836 | pos->parent.trace = trace; |
8563e754 | 837 | break; |
8563e754 | 838 | case O_RDWR: |
c88c09f9 | 839 | pos->prot = PROT_READ | PROT_WRITE; |
8563e754 MD |
840 | pos->flags = MAP_SHARED; |
841 | pos->parent.rw_table = write_dispatch_table; | |
31262354 | 842 | pos->parent.event_cb = ctf_write_event; |
ca334c72 | 843 | pos->parent.trace = trace; |
8563e754 MD |
844 | break; |
845 | default: | |
846 | assert(0); | |
8c572eba | 847 | } |
f824ae04 | 848 | return 0; |
8c572eba MD |
849 | } |
850 | ||
f824ae04 | 851 | int ctf_fini_pos(struct ctf_stream_pos *pos) |
8c572eba | 852 | { |
c88c09f9 | 853 | if ((pos->prot & PROT_WRITE) && pos->content_size_loc) |
8c572eba | 854 | *pos->content_size_loc = pos->offset; |
aee35fcc | 855 | if (pos->base_mma) { |
08c82b90 MD |
856 | int ret; |
857 | ||
8c572eba | 858 | /* unmap old base */ |
aee35fcc | 859 | ret = munmap_align(pos->base_mma); |
8c572eba | 860 | if (ret) { |
3394d22e | 861 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", |
8c572eba | 862 | strerror(errno)); |
f824ae04 | 863 | return -1; |
8c572eba MD |
864 | } |
865 | } | |
992e8cc0 MD |
866 | if (pos->packet_index) |
867 | (void) g_array_free(pos->packet_index, TRUE); | |
f824ae04 | 868 | return 0; |
8c572eba MD |
869 | } |
870 | ||
f1f52630 MD |
871 | void ctf_update_current_packet_index(struct ctf_stream_definition *stream, |
872 | struct packet_index *prev_index, | |
873 | struct packet_index *cur_index) | |
874 | { | |
875 | uint64_t events_discarded_diff; | |
6246fd54 | 876 | uint64_t packets_lost_diff = 0; |
f1f52630 MD |
877 | |
878 | /* Update packet index time information */ | |
2654fe9b MD |
879 | |
880 | /* Current packet begin/end */ | |
881 | stream->current.real.begin = | |
882 | cur_index->ts_real.timestamp_begin; | |
883 | stream->current.cycles.begin = | |
f1f52630 | 884 | cur_index->ts_cycles.timestamp_begin; |
2654fe9b | 885 | stream->current.real.end = |
f1f52630 | 886 | cur_index->ts_real.timestamp_end; |
2654fe9b MD |
887 | stream->current.cycles.end = |
888 | cur_index->ts_cycles.timestamp_end; | |
f1f52630 MD |
889 | |
890 | /* Update packet index discarded event information */ | |
891 | events_discarded_diff = cur_index->events_discarded; | |
892 | if (prev_index) { | |
2654fe9b MD |
893 | /* Previous packet begin/end */ |
894 | stream->prev.cycles.begin = | |
895 | prev_index->ts_cycles.timestamp_begin; | |
896 | stream->prev.real.begin = | |
897 | prev_index->ts_real.timestamp_begin; | |
898 | stream->prev.cycles.end = | |
899 | prev_index->ts_cycles.timestamp_end; | |
900 | stream->prev.real.end = | |
901 | prev_index->ts_real.timestamp_end; | |
902 | ||
f1f52630 | 903 | events_discarded_diff -= prev_index->events_discarded; |
6246fd54 JD |
904 | /* packet_seq_num stays at 0 if not produced by the tracer */ |
905 | if (cur_index->packet_seq_num) { | |
906 | packets_lost_diff = cur_index->packet_seq_num - | |
907 | prev_index->packet_seq_num - 1; | |
908 | } | |
f1f52630 MD |
909 | /* |
910 | * Deal with 32-bit wrap-around if the tracer provided a | |
911 | * 32-bit field. | |
912 | */ | |
913 | if (prev_index->events_discarded_len == 32) { | |
914 | events_discarded_diff = (uint32_t) events_discarded_diff; | |
915 | } | |
2654fe9b MD |
916 | } else { |
917 | /* | |
918 | * First packet: use current packet info as limits for | |
919 | * previous packet. | |
920 | */ | |
921 | stream->prev.cycles.begin = | |
922 | stream->prev.cycles.end = | |
923 | stream->current.cycles.begin; | |
924 | stream->prev.real.begin = | |
925 | stream->prev.real.end = | |
926 | stream->current.real.begin; | |
f1f52630 MD |
927 | } |
928 | stream->events_discarded = events_discarded_diff; | |
6246fd54 | 929 | stream->packets_lost = packets_lost_diff; |
f1f52630 MD |
930 | } |
931 | ||
7da9b2f3 JD |
932 | /* |
933 | * Find the timerange where all the streams in the trace are active | |
934 | * simultaneously. | |
935 | * | |
936 | * Return 0 and update begin/end if necessary on success, return 1 for | |
937 | * empty streams and return a negative value on error. | |
938 | */ | |
939 | static | |
40af9f9f JG |
940 | int ctf_find_stream_intersection(struct bt_trace_descriptor *td_read, |
941 | struct packet_index_time *_real, | |
942 | struct packet_index_time *_cycles) | |
7da9b2f3 | 943 | { |
7da9b2f3 | 944 | int stream_id, ret = 0; |
40af9f9f JG |
945 | struct packet_index_time real = { INT64_MIN, INT64_MAX }, |
946 | cycles = { INT64_MIN, INT64_MAX }; | |
947 | struct ctf_trace *tin = container_of(td_read, struct ctf_trace, parent); | |
7da9b2f3 | 948 | |
40af9f9f JG |
949 | /* At least one of the two return args must be provided. */ |
950 | if (!_real && !_cycles) { | |
951 | ret = -1; | |
952 | goto end; | |
953 | } | |
954 | ||
955 | if (tin->streams->len == 0) { | |
956 | ret = 1; | |
957 | goto end; | |
958 | } | |
7da9b2f3 JD |
959 | |
960 | for (stream_id = 0; stream_id < tin->streams->len; | |
961 | stream_id++) { | |
962 | int filenr; | |
963 | struct ctf_stream_declaration *stream_class; | |
964 | ||
965 | stream_class = g_ptr_array_index(tin->streams, stream_id); | |
966 | if (!stream_class) { | |
967 | continue; | |
968 | } | |
969 | for (filenr = 0; filenr < stream_class->streams->len; filenr++) { | |
970 | struct ctf_file_stream *file_stream; | |
971 | struct ctf_stream_pos *stream_pos; | |
972 | struct packet_index *index; | |
973 | ||
974 | file_stream = g_ptr_array_index(stream_class->streams, | |
975 | filenr); | |
976 | if (!file_stream) { | |
977 | continue; | |
978 | } | |
979 | stream_pos = &file_stream->pos; | |
980 | if (!stream_pos->packet_index || | |
981 | stream_pos->packet_index->len <= 0) { | |
982 | ret = 1; | |
983 | goto end; | |
984 | } | |
985 | index = &g_array_index(stream_pos->packet_index, | |
986 | struct packet_index, 0); | |
40af9f9f JG |
987 | real.timestamp_begin = max(real.timestamp_begin, |
988 | index->ts_real.timestamp_begin); | |
989 | cycles.timestamp_begin = max(cycles.timestamp_begin, | |
990 | index->ts_cycles.timestamp_begin); | |
991 | ||
7da9b2f3 JD |
992 | index = &g_array_index(stream_pos->packet_index, |
993 | struct packet_index, | |
994 | stream_pos->packet_index->len - 1); | |
40af9f9f JG |
995 | real.timestamp_end = min(real.timestamp_end, |
996 | index->ts_real.timestamp_end); | |
997 | cycles.timestamp_end = min(cycles.timestamp_end, | |
998 | index->ts_cycles.timestamp_end); | |
7da9b2f3 JD |
999 | } |
1000 | } | |
7da9b2f3 | 1001 | end: |
40af9f9f JG |
1002 | if (ret == 0) { |
1003 | if (_real) { | |
1004 | *_real = real; | |
1005 | } | |
1006 | if (_cycles) { | |
1007 | *_cycles = cycles; | |
1008 | } | |
1009 | } | |
7da9b2f3 JD |
1010 | return ret; |
1011 | } | |
1012 | ||
1013 | /* | |
40af9f9f JG |
1014 | * Find the union of all active regions in the trace collection's traces. |
1015 | * Returns "real" timestamps. | |
7da9b2f3 JD |
1016 | * |
1017 | * Return 0 on success. | |
1018 | * Return 1 if no intersections are found. | |
1019 | * Return a negative value on error. | |
1020 | */ | |
40af9f9f JG |
1021 | int ctf_find_tc_stream_packet_intersection_union(struct bt_context *ctx, |
1022 | int64_t *_ts_begin, int64_t *_ts_end) | |
7da9b2f3 | 1023 | { |
40af9f9f JG |
1024 | int ret = 0, i; |
1025 | int64_t ts_begin = INT64_MAX, ts_end = INT64_MIN; | |
7da9b2f3 | 1026 | |
40af9f9f | 1027 | if (!ctx || !ctx->tc || !ctx->tc->array || !_ts_begin || !_ts_end) { |
7da9b2f3 JD |
1028 | ret = -EINVAL; |
1029 | goto end; | |
1030 | } | |
1031 | ||
1032 | for (i = 0; i < ctx->tc->array->len; i++) { | |
1033 | struct bt_trace_descriptor *td_read; | |
40af9f9f | 1034 | struct packet_index_time intersection_real; |
7da9b2f3 JD |
1035 | |
1036 | td_read = g_ptr_array_index(ctx->tc->array, i); | |
1037 | if (!td_read) { | |
1038 | continue; | |
1039 | } | |
40af9f9f JG |
1040 | ret = ctf_find_stream_intersection(td_read, &intersection_real, |
1041 | NULL); | |
1042 | if (ret == 1) { | |
1043 | /* Empty trace or no stream intersection. */ | |
1044 | continue; | |
1045 | } else if (ret < 0) { | |
7da9b2f3 JD |
1046 | goto end; |
1047 | } | |
40af9f9f JG |
1048 | |
1049 | ts_begin = min(intersection_real.timestamp_begin, ts_begin); | |
1050 | ts_end = max(intersection_real.timestamp_end, ts_end); | |
7da9b2f3 | 1051 | } |
40af9f9f JG |
1052 | |
1053 | if (ts_end < ts_begin) { | |
7da9b2f3 | 1054 | ret = 1; |
40af9f9f JG |
1055 | goto end; |
1056 | } | |
1057 | *_ts_begin = ts_begin; | |
1058 | *_ts_end = ts_end; | |
1059 | end: | |
1060 | return ret; | |
1061 | } | |
1062 | ||
1063 | int ctf_tc_set_stream_intersection_mode(struct bt_context *ctx) | |
1064 | { | |
1065 | int ret = 0, i; | |
1066 | ||
1067 | if (!ctx || !ctx->tc || !ctx->tc->array) { | |
1068 | ret = -EINVAL; | |
1069 | goto end; | |
1070 | } | |
1071 | ||
1072 | for (i = 0; i < ctx->tc->array->len; i++) { | |
1073 | struct bt_trace_descriptor *td_read; | |
1074 | struct packet_index_time intersection_real; | |
1075 | ||
1076 | td_read = g_ptr_array_index(ctx->tc->array, i); | |
1077 | if (!td_read) { | |
1078 | continue; | |
1079 | } | |
1080 | ||
1081 | ret = ctf_find_stream_intersection(td_read, &intersection_real, | |
1082 | NULL); | |
1083 | if (ret == 1) { | |
1084 | /* Empty trace or no stream intersection. */ | |
1085 | continue; | |
1086 | } else if (ret < 0) { | |
1087 | goto end; | |
1088 | } | |
1089 | ||
1090 | td_read->interval_real = intersection_real; | |
1091 | td_read->interval_set = true; | |
7da9b2f3 JD |
1092 | } |
1093 | end: | |
1094 | return ret; | |
1095 | } | |
1096 | ||
20d0dcf9 MD |
1097 | /* |
1098 | * for SEEK_CUR: go to next packet. | |
34b8fff6 | 1099 | * for SEEK_SET: go to packet numer (index). |
20d0dcf9 | 1100 | */ |
1cf393f6 | 1101 | void ctf_packet_seek(struct bt_stream_pos *stream_pos, size_t index, int whence) |
0f980a35 | 1102 | { |
d6425aaf MD |
1103 | struct ctf_stream_pos *pos = |
1104 | container_of(stream_pos, struct ctf_stream_pos, parent); | |
75cc2c35 MD |
1105 | struct ctf_file_stream *file_stream = |
1106 | container_of(pos, struct ctf_file_stream, pos); | |
0f980a35 | 1107 | int ret; |
2654fe9b | 1108 | struct packet_index *packet_index, *prev_index; |
0f980a35 | 1109 | |
5bfcad93 MD |
1110 | switch (whence) { |
1111 | case SEEK_CUR: | |
1112 | case SEEK_SET: /* Fall-through */ | |
1113 | break; /* OK */ | |
1114 | default: | |
1115 | assert(0); | |
1116 | } | |
1117 | ||
c88c09f9 | 1118 | if ((pos->prot & PROT_WRITE) && pos->content_size_loc) |
8c572eba | 1119 | *pos->content_size_loc = pos->offset; |
0f980a35 | 1120 | |
aee35fcc | 1121 | if (pos->base_mma) { |
0f980a35 | 1122 | /* unmap old base */ |
aee35fcc | 1123 | ret = munmap_align(pos->base_mma); |
0f980a35 | 1124 | if (ret) { |
3394d22e | 1125 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", |
0f980a35 MD |
1126 | strerror(errno)); |
1127 | assert(0); | |
1128 | } | |
aee35fcc | 1129 | pos->base_mma = NULL; |
0f980a35 MD |
1130 | } |
1131 | ||
8c572eba | 1132 | /* |
46322b33 | 1133 | * The caller should never ask for ctf_move_pos across packets, |
8c572eba MD |
1134 | * except to get exactly at the beginning of the next packet. |
1135 | */ | |
c88c09f9 | 1136 | if (pos->prot & PROT_WRITE) { |
989c73bc MD |
1137 | switch (whence) { |
1138 | case SEEK_CUR: | |
1139 | /* The writer will add padding */ | |
e0a5b455 | 1140 | pos->mmap_offset += pos->packet_size / CHAR_BIT; |
989c73bc MD |
1141 | break; |
1142 | case SEEK_SET: | |
20d0dcf9 | 1143 | assert(index == 0); /* only seek supported for now */ |
989c73bc MD |
1144 | pos->cur_index = 0; |
1145 | break; | |
1146 | default: | |
1147 | assert(0); | |
1148 | } | |
8c572eba MD |
1149 | pos->content_size = -1U; /* Unknown at this point */ |
1150 | pos->packet_size = WRITE_PACKET_LEN; | |
d9548894 MD |
1151 | do { |
1152 | ret = bt_posix_fallocate(pos->fd, pos->mmap_offset, | |
1153 | pos->packet_size / CHAR_BIT); | |
1154 | } while (ret == EINTR); | |
1155 | assert(ret == 0); | |
847bf71a | 1156 | pos->offset = 0; |
8c572eba | 1157 | } else { |
5f643ed7 | 1158 | read_next_packet: |
847bf71a MD |
1159 | switch (whence) { |
1160 | case SEEK_CUR: | |
41e82e00 | 1161 | { |
7d97fad9 MD |
1162 | if (pos->offset == EOF) { |
1163 | return; | |
1164 | } | |
992e8cc0 | 1165 | assert(pos->cur_index < pos->packet_index->len); |
847bf71a | 1166 | /* The reader will expect us to skip padding */ |
8c572eba | 1167 | ++pos->cur_index; |
847bf71a | 1168 | break; |
41e82e00 | 1169 | } |
847bf71a | 1170 | case SEEK_SET: |
992e8cc0 | 1171 | if (index >= pos->packet_index->len) { |
c309df1c MD |
1172 | pos->offset = EOF; |
1173 | return; | |
1174 | } | |
20d0dcf9 | 1175 | pos->cur_index = index; |
847bf71a MD |
1176 | break; |
1177 | default: | |
1178 | assert(0); | |
1179 | } | |
2654fe9b | 1180 | |
024ffe47 MD |
1181 | if (pos->cur_index >= pos->packet_index->len) { |
1182 | pos->offset = EOF; | |
1183 | return; | |
1184 | } | |
1185 | ||
2654fe9b MD |
1186 | packet_index = &g_array_index(pos->packet_index, |
1187 | struct packet_index, pos->cur_index); | |
1188 | if (pos->cur_index > 0) { | |
1189 | prev_index = &g_array_index(pos->packet_index, | |
1190 | struct packet_index, | |
1191 | pos->cur_index - 1); | |
1192 | } else { | |
1193 | prev_index = NULL; | |
1194 | } | |
1195 | ctf_update_current_packet_index(&file_stream->parent, | |
1196 | prev_index, packet_index); | |
1197 | ||
2654fe9b MD |
1198 | /* |
1199 | * We need to check if we are in trace read or called | |
1200 | * from packet indexing. In this last case, the | |
1201 | * collection is not there, so we cannot print the | |
1202 | * timestamps. | |
1203 | */ | |
1204 | if ((&file_stream->parent)->stream_class->trace->parent.collection) { | |
6246fd54 | 1205 | ctf_print_discarded_lost(stderr, &file_stream->parent); |
2654fe9b MD |
1206 | } |
1207 | ||
992e8cc0 | 1208 | packet_index = &g_array_index(pos->packet_index, |
03798a93 JD |
1209 | struct packet_index, |
1210 | pos->cur_index); | |
992e8cc0 | 1211 | file_stream->parent.cycles_timestamp = packet_index->ts_cycles.timestamp_begin; |
03798a93 | 1212 | |
992e8cc0 | 1213 | file_stream->parent.real_timestamp = packet_index->ts_real.timestamp_begin; |
8c572eba MD |
1214 | |
1215 | /* Lookup context/packet size in index */ | |
e69dd258 JD |
1216 | if (packet_index->data_offset == -1) { |
1217 | ret = find_data_offset(pos, file_stream, packet_index); | |
1218 | if (ret < 0) { | |
1219 | return; | |
1220 | } | |
1221 | } | |
20d0dcf9 MD |
1222 | pos->content_size = packet_index->content_size; |
1223 | pos->packet_size = packet_index->packet_size; | |
e69dd258 | 1224 | pos->mmap_offset = packet_index->offset; |
500634be JD |
1225 | pos->data_offset = packet_index->data_offset; |
1226 | if (pos->data_offset < packet_index->content_size) { | |
75cc2c35 | 1227 | pos->offset = 0; /* will read headers */ |
500634be | 1228 | } else if (pos->data_offset == packet_index->content_size) { |
5f643ed7 | 1229 | /* empty packet */ |
20d0dcf9 | 1230 | pos->offset = packet_index->data_offset; |
3abe83c7 | 1231 | whence = SEEK_CUR; |
5f643ed7 | 1232 | goto read_next_packet; |
7eda6fc7 | 1233 | } else { |
2b9a764d MD |
1234 | pos->offset = EOF; |
1235 | return; | |
1236 | } | |
8c572eba | 1237 | } |
0f980a35 | 1238 | /* map new base. Need mapping length from header. */ |
aee35fcc MD |
1239 | pos->base_mma = mmap_align(pos->packet_size / CHAR_BIT, pos->prot, |
1240 | pos->flags, pos->fd, pos->mmap_offset); | |
1241 | if (pos->base_mma == MAP_FAILED) { | |
3394d22e | 1242 | fprintf(stderr, "[error] mmap error %s.\n", |
847bf71a MD |
1243 | strerror(errno)); |
1244 | assert(0); | |
1245 | } | |
75cc2c35 MD |
1246 | |
1247 | /* update trace_packet_header and stream_packet_context */ | |
c88c09f9 JG |
1248 | if (!(pos->prot & PROT_WRITE) && |
1249 | file_stream->parent.trace_packet_header) { | |
75cc2c35 | 1250 | /* Read packet header */ |
2d0bea29 | 1251 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); |
75cc2c35 MD |
1252 | assert(!ret); |
1253 | } | |
c88c09f9 JG |
1254 | if (!(pos->prot & PROT_WRITE) && |
1255 | file_stream->parent.stream_packet_context) { | |
75cc2c35 | 1256 | /* Read packet context */ |
2d0bea29 | 1257 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); |
75cc2c35 MD |
1258 | assert(!ret); |
1259 | } | |
0f980a35 MD |
1260 | } |
1261 | ||
b4c19c1e MD |
1262 | static |
1263 | int packet_metadata(struct ctf_trace *td, FILE *fp) | |
1264 | { | |
1265 | uint32_t magic; | |
1266 | size_t len; | |
1267 | int ret = 0; | |
1268 | ||
1269 | len = fread(&magic, sizeof(magic), 1, fp); | |
a0fe7d97 | 1270 | if (len != 1) { |
b4c19c1e MD |
1271 | goto end; |
1272 | } | |
1273 | if (magic == TSDL_MAGIC) { | |
1274 | ret = 1; | |
1275 | td->byte_order = BYTE_ORDER; | |
0d336fdf | 1276 | CTF_TRACE_SET_FIELD(td, byte_order); |
b4c19c1e MD |
1277 | } else if (magic == GUINT32_SWAP_LE_BE(TSDL_MAGIC)) { |
1278 | ret = 1; | |
1279 | td->byte_order = (BYTE_ORDER == BIG_ENDIAN) ? | |
1280 | LITTLE_ENDIAN : BIG_ENDIAN; | |
0d336fdf | 1281 | CTF_TRACE_SET_FIELD(td, byte_order); |
b4c19c1e MD |
1282 | } |
1283 | end: | |
1284 | rewind(fp); | |
1285 | return ret; | |
1286 | } | |
1287 | ||
5c262147 MD |
1288 | /* |
1289 | * Returns 0 on success, -1 on error. | |
1290 | */ | |
1291 | static | |
1292 | int check_version(unsigned int major, unsigned int minor) | |
1293 | { | |
1294 | switch (major) { | |
1295 | case 1: | |
1296 | switch (minor) { | |
1297 | case 8: | |
1298 | return 0; | |
1299 | default: | |
1300 | goto warning; | |
1301 | } | |
1302 | default: | |
1303 | goto warning; | |
9a19a512 | 1304 | |
5c262147 MD |
1305 | } |
1306 | ||
1307 | /* eventually return an error instead of warning */ | |
1308 | warning: | |
3394d22e | 1309 | fprintf(stderr, "[warning] Unsupported CTF specification version %u.%u. Trying anyway.\n", |
5c262147 MD |
1310 | major, minor); |
1311 | return 0; | |
1312 | } | |
1313 | ||
b4c19c1e | 1314 | static |
0c880b0a | 1315 | int ctf_trace_metadata_packet_read(struct ctf_trace *td, FILE *in, |
b4c19c1e MD |
1316 | FILE *out) |
1317 | { | |
1318 | struct metadata_packet_header header; | |
a0fe7d97 | 1319 | size_t readlen, writelen, toread; |
f8254867 | 1320 | char buf[4096 + 1]; /* + 1 for debug-mode \0 */ |
b4c19c1e MD |
1321 | int ret = 0; |
1322 | ||
a91a962e | 1323 | readlen = fread(&header, header_sizeof(header), 1, in); |
a0fe7d97 | 1324 | if (readlen < 1) |
b4c19c1e MD |
1325 | return -EINVAL; |
1326 | ||
1327 | if (td->byte_order != BYTE_ORDER) { | |
1328 | header.magic = GUINT32_SWAP_LE_BE(header.magic); | |
1329 | header.checksum = GUINT32_SWAP_LE_BE(header.checksum); | |
1330 | header.content_size = GUINT32_SWAP_LE_BE(header.content_size); | |
1331 | header.packet_size = GUINT32_SWAP_LE_BE(header.packet_size); | |
1332 | } | |
1333 | if (header.checksum) | |
3394d22e | 1334 | fprintf(stderr, "[warning] checksum verification not supported yet.\n"); |
b4c19c1e | 1335 | if (header.compression_scheme) { |
3394d22e | 1336 | fprintf(stderr, "[error] compression (%u) not supported yet.\n", |
b4c19c1e MD |
1337 | header.compression_scheme); |
1338 | return -EINVAL; | |
1339 | } | |
1340 | if (header.encryption_scheme) { | |
3394d22e | 1341 | fprintf(stderr, "[error] encryption (%u) not supported yet.\n", |
b4c19c1e MD |
1342 | header.encryption_scheme); |
1343 | return -EINVAL; | |
1344 | } | |
1345 | if (header.checksum_scheme) { | |
3394d22e | 1346 | fprintf(stderr, "[error] checksum (%u) not supported yet.\n", |
b4c19c1e MD |
1347 | header.checksum_scheme); |
1348 | return -EINVAL; | |
1349 | } | |
5c262147 MD |
1350 | if (check_version(header.major, header.minor) < 0) |
1351 | return -EINVAL; | |
b4c19c1e MD |
1352 | if (!CTF_TRACE_FIELD_IS_SET(td, uuid)) { |
1353 | memcpy(td->uuid, header.uuid, sizeof(header.uuid)); | |
1354 | CTF_TRACE_SET_FIELD(td, uuid); | |
1355 | } else { | |
19dd40db | 1356 | if (bt_uuid_compare(header.uuid, td->uuid)) |
b4c19c1e MD |
1357 | return -EINVAL; |
1358 | } | |
1359 | ||
b1ccd079 MD |
1360 | if ((header.content_size / CHAR_BIT) < header_sizeof(header)) |
1361 | return -EINVAL; | |
1362 | ||
255b2138 | 1363 | toread = (header.content_size / CHAR_BIT) - header_sizeof(header); |
a0fe7d97 MD |
1364 | |
1365 | for (;;) { | |
f8254867 | 1366 | readlen = fread(buf, sizeof(char), min(sizeof(buf) - 1, toread), in); |
b4c19c1e MD |
1367 | if (ferror(in)) { |
1368 | ret = -EINVAL; | |
1369 | break; | |
1370 | } | |
4152822b | 1371 | if (babeltrace_debug) { |
f8254867 | 1372 | buf[readlen] = '\0'; |
3394d22e | 1373 | fprintf(stderr, "[debug] metadata packet read: %s\n", |
4152822b MD |
1374 | buf); |
1375 | } | |
1376 | ||
b4c19c1e MD |
1377 | writelen = fwrite(buf, sizeof(char), readlen, out); |
1378 | if (writelen < readlen) { | |
1379 | ret = -EIO; | |
1380 | break; | |
1381 | } | |
1382 | if (ferror(out)) { | |
1383 | ret = -EINVAL; | |
1384 | break; | |
1385 | } | |
a0fe7d97 MD |
1386 | toread -= readlen; |
1387 | if (!toread) { | |
7f4b5c4d | 1388 | ret = 0; /* continue reading next packet */ |
ddbc52af | 1389 | goto read_padding; |
a0fe7d97 | 1390 | } |
b4c19c1e MD |
1391 | } |
1392 | return ret; | |
ddbc52af MD |
1393 | |
1394 | read_padding: | |
1395 | toread = (header.packet_size - header.content_size) / CHAR_BIT; | |
1396 | ret = fseek(in, toread, SEEK_CUR); | |
1397 | if (ret < 0) { | |
3394d22e | 1398 | fprintf(stderr, "[warning] Missing padding at end of file\n"); |
ddbc52af MD |
1399 | ret = 0; |
1400 | } | |
1401 | return ret; | |
b4c19c1e MD |
1402 | } |
1403 | ||
1404 | static | |
0c880b0a | 1405 | int ctf_trace_metadata_stream_read(struct ctf_trace *td, FILE **fp, |
b4c19c1e MD |
1406 | char **buf) |
1407 | { | |
1408 | FILE *in, *out; | |
abc40d24 | 1409 | size_t size, buflen; |
b4c19c1e MD |
1410 | int ret; |
1411 | ||
1412 | in = *fp; | |
c4f5487e MD |
1413 | /* |
1414 | * Using strlen on *buf instead of size of open_memstream | |
1415 | * because its size includes garbage at the end (after final | |
1416 | * \0). This is the allocated size, not the actual string size. | |
1417 | */ | |
0cbbc8b8 | 1418 | out = bt_open_memstream(buf, &size); |
a569a564 MD |
1419 | if (out == NULL) { |
1420 | perror("Metadata open_memstream"); | |
b4c19c1e | 1421 | return -errno; |
a569a564 | 1422 | } |
b4c19c1e | 1423 | for (;;) { |
0c880b0a | 1424 | ret = ctf_trace_metadata_packet_read(td, in, out); |
7f4b5c4d | 1425 | if (ret) { |
b4c19c1e | 1426 | break; |
7f4b5c4d MD |
1427 | } |
1428 | if (feof(in)) { | |
1429 | ret = 0; | |
b4c19c1e MD |
1430 | break; |
1431 | } | |
1432 | } | |
f8370579 | 1433 | /* close to flush the buffer */ |
0cbbc8b8 | 1434 | ret = bt_close_memstream(buf, &size, out); |
f8370579 | 1435 | if (ret < 0) { |
f824ae04 MD |
1436 | int closeret; |
1437 | ||
f8370579 | 1438 | perror("babeltrace_flush_memstream"); |
f824ae04 MD |
1439 | ret = -errno; |
1440 | closeret = fclose(in); | |
1441 | if (closeret) { | |
1442 | perror("Error in fclose"); | |
1443 | } | |
1444 | return ret; | |
1445 | } | |
1446 | ret = fclose(in); | |
1447 | if (ret) { | |
1448 | perror("Error in fclose"); | |
f8370579 | 1449 | } |
b4c19c1e | 1450 | /* open for reading */ |
abc40d24 MD |
1451 | buflen = strlen(*buf); |
1452 | if (!buflen) { | |
1453 | *fp = NULL; | |
493330cb | 1454 | return -ENOENT; |
abc40d24 | 1455 | } |
0cbbc8b8 | 1456 | *fp = bt_fmemopen(*buf, buflen, "rb"); |
a569a564 MD |
1457 | if (!*fp) { |
1458 | perror("Metadata fmemopen"); | |
1459 | return -errno; | |
1460 | } | |
b4c19c1e MD |
1461 | return 0; |
1462 | } | |
1463 | ||
65102a8c | 1464 | static |
0c880b0a MD |
1465 | int ctf_trace_metadata_read(struct ctf_trace *td, FILE *metadata_fp, |
1466 | struct ctf_scanner *scanner, int append) | |
65102a8c | 1467 | { |
2d0bea29 | 1468 | struct ctf_file_stream *metadata_stream; |
65102a8c | 1469 | FILE *fp; |
b4c19c1e | 1470 | char *buf = NULL; |
f824ae04 | 1471 | int ret = 0, closeret; |
65102a8c | 1472 | |
2d0bea29 | 1473 | metadata_stream = g_new0(struct ctf_file_stream, 1); |
3a25e036 | 1474 | metadata_stream->pos.last_offset = LAST_OFFSET_POISON; |
b086c01a | 1475 | |
ae23d232 JD |
1476 | if (metadata_fp) { |
1477 | fp = metadata_fp; | |
bcbfb8bf | 1478 | metadata_stream->pos.fd = -1; |
ae23d232 JD |
1479 | } else { |
1480 | td->metadata = &metadata_stream->parent; | |
1481 | metadata_stream->pos.fd = openat(td->dirfd, "metadata", O_RDONLY); | |
1482 | if (metadata_stream->pos.fd < 0) { | |
3394d22e | 1483 | fprintf(stderr, "Unable to open metadata.\n"); |
f824ae04 MD |
1484 | ret = -1; |
1485 | goto end_free; | |
ae23d232 | 1486 | } |
65102a8c | 1487 | |
ae23d232 JD |
1488 | fp = fdopen(metadata_stream->pos.fd, "r"); |
1489 | if (!fp) { | |
3394d22e | 1490 | fprintf(stderr, "[error] Unable to open metadata stream.\n"); |
a569a564 | 1491 | perror("Metadata stream open"); |
ae23d232 JD |
1492 | ret = -errno; |
1493 | goto end_stream; | |
1494 | } | |
f824ae04 MD |
1495 | /* fd now belongs to fp */ |
1496 | metadata_stream->pos.fd = -1; | |
ae23d232 | 1497 | } |
65102a8c MD |
1498 | if (babeltrace_debug) |
1499 | yydebug = 1; | |
1500 | ||
b4c19c1e | 1501 | if (packet_metadata(td, fp)) { |
0c880b0a | 1502 | ret = ctf_trace_metadata_stream_read(td, &fp, &buf); |
abc40d24 | 1503 | if (ret) { |
6514b4af | 1504 | goto end; |
abc40d24 | 1505 | } |
7237592a MD |
1506 | td->metadata_string = buf; |
1507 | td->metadata_packetized = 1; | |
da75b0f7 | 1508 | } else { |
0c880b0a MD |
1509 | if (!append) { |
1510 | unsigned int major, minor; | |
1511 | ssize_t nr_items; | |
1512 | ||
1513 | td->byte_order = BYTE_ORDER; | |
1514 | ||
1515 | /* Check text-only metadata header and version */ | |
1516 | nr_items = fscanf(fp, "/* CTF %10u.%10u", &major, &minor); | |
1517 | if (nr_items < 2) | |
1518 | fprintf(stderr, "[warning] Ill-shapen or missing \"/* CTF x.y\" header for text-only metadata.\n"); | |
1519 | if (check_version(major, minor) < 0) { | |
1520 | ret = -EINVAL; | |
1521 | goto end; | |
1522 | } | |
1523 | rewind(fp); | |
5c262147 | 1524 | } |
b4c19c1e MD |
1525 | } |
1526 | ||
cb2f43ee | 1527 | ret = ctf_scanner_append_ast(scanner, fp); |
65102a8c | 1528 | if (ret) { |
3394d22e | 1529 | fprintf(stderr, "[error] Error creating AST\n"); |
65102a8c MD |
1530 | goto end; |
1531 | } | |
1532 | ||
1533 | if (babeltrace_debug) { | |
3394d22e | 1534 | ret = ctf_visitor_print_xml(stderr, 0, &scanner->ast->root); |
65102a8c | 1535 | if (ret) { |
3394d22e | 1536 | fprintf(stderr, "[error] Error visiting AST for XML output\n"); |
65102a8c MD |
1537 | goto end; |
1538 | } | |
1539 | } | |
1540 | ||
3394d22e | 1541 | ret = ctf_visitor_semantic_check(stderr, 0, &scanner->ast->root); |
65102a8c | 1542 | if (ret) { |
3394d22e | 1543 | fprintf(stderr, "[error] Error in CTF semantic validation %d\n", ret); |
65102a8c MD |
1544 | goto end; |
1545 | } | |
3394d22e | 1546 | ret = ctf_visitor_construct_metadata(stderr, 0, &scanner->ast->root, |
ac5c6ca0 | 1547 | td, td->byte_order); |
65102a8c | 1548 | if (ret) { |
3394d22e | 1549 | fprintf(stderr, "[error] Error in CTF metadata constructor %d\n", ret); |
65102a8c MD |
1550 | goto end; |
1551 | } | |
1552 | end: | |
f824ae04 MD |
1553 | if (fp) { |
1554 | closeret = fclose(fp); | |
1555 | if (closeret) { | |
1556 | perror("Error on fclose"); | |
1557 | } | |
1558 | } | |
65102a8c | 1559 | end_stream: |
f824ae04 MD |
1560 | if (metadata_stream->pos.fd >= 0) { |
1561 | closeret = close(metadata_stream->pos.fd); | |
1562 | if (closeret) { | |
1563 | perror("Error on metadata stream fd close"); | |
1564 | } | |
1565 | } | |
1566 | end_free: | |
2d0bea29 MD |
1567 | if (ret) |
1568 | g_free(metadata_stream); | |
0f980a35 MD |
1569 | return ret; |
1570 | } | |
1571 | ||
e28d4618 | 1572 | static |
c716f83b | 1573 | struct ctf_event_definition *create_event_definitions(struct ctf_trace *td, |
9e88d150 | 1574 | struct ctf_stream_definition *stream, |
4716614a | 1575 | struct ctf_event_declaration *event) |
e28d4618 | 1576 | { |
c716f83b | 1577 | struct ctf_event_definition *stream_event = g_new0(struct ctf_event_definition, 1); |
e28d4618 MD |
1578 | |
1579 | if (event->context_decl) { | |
0d69b916 | 1580 | struct bt_definition *definition = |
e28d4618 MD |
1581 | event->context_decl->p.definition_new(&event->context_decl->p, |
1582 | stream->parent_def_scope, 0, 0, "event.context"); | |
1583 | if (!definition) { | |
1584 | goto error; | |
1585 | } | |
42dc00b7 | 1586 | stream_event->event_context = container_of(definition, |
e28d4618 | 1587 | struct definition_struct, p); |
42dc00b7 | 1588 | stream->parent_def_scope = stream_event->event_context->p.scope; |
e28d4618 MD |
1589 | } |
1590 | if (event->fields_decl) { | |
0d69b916 | 1591 | struct bt_definition *definition = |
e28d4618 MD |
1592 | event->fields_decl->p.definition_new(&event->fields_decl->p, |
1593 | stream->parent_def_scope, 0, 0, "event.fields"); | |
1594 | if (!definition) { | |
1595 | goto error; | |
1596 | } | |
42dc00b7 | 1597 | stream_event->event_fields = container_of(definition, |
e28d4618 | 1598 | struct definition_struct, p); |
42dc00b7 | 1599 | stream->parent_def_scope = stream_event->event_fields->p.scope; |
e28d4618 | 1600 | } |
d3ded99d | 1601 | stream_event->stream = stream; |
42dc00b7 | 1602 | return stream_event; |
e28d4618 MD |
1603 | |
1604 | error: | |
42dc00b7 | 1605 | if (stream_event->event_fields) |
13fad8b6 | 1606 | bt_definition_unref(&stream_event->event_fields->p); |
42dc00b7 | 1607 | if (stream_event->event_context) |
13fad8b6 | 1608 | bt_definition_unref(&stream_event->event_context->p); |
888ec52a MD |
1609 | fprintf(stderr, "[error] Unable to create event definition for event \"%s\".\n", |
1610 | g_quark_to_string(event->name)); | |
e28d4618 MD |
1611 | return NULL; |
1612 | } | |
1613 | ||
0c880b0a MD |
1614 | static |
1615 | int copy_event_declarations_stream_class_to_stream(struct ctf_trace *td, | |
1616 | struct ctf_stream_declaration *stream_class, | |
1617 | struct ctf_stream_definition *stream) | |
1618 | { | |
1619 | size_t def_size, class_size, i; | |
1620 | int ret = 0; | |
1621 | ||
1622 | def_size = stream->events_by_id->len; | |
1623 | class_size = stream_class->events_by_id->len; | |
1624 | ||
1625 | g_ptr_array_set_size(stream->events_by_id, class_size); | |
1626 | for (i = def_size; i < class_size; i++) { | |
1627 | struct ctf_event_declaration *event = | |
1628 | g_ptr_array_index(stream_class->events_by_id, i); | |
1629 | struct ctf_event_definition *stream_event; | |
1630 | ||
1631 | if (!event) | |
1632 | continue; | |
1633 | stream_event = create_event_definitions(td, stream, event); | |
1634 | if (!stream_event) { | |
1635 | ret = -EINVAL; | |
1636 | goto error; | |
1637 | } | |
1638 | g_ptr_array_index(stream->events_by_id, i) = stream_event; | |
1639 | } | |
1640 | error: | |
1641 | return ret; | |
1642 | } | |
1643 | ||
e28d4618 | 1644 | static |
9e88d150 | 1645 | int create_stream_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream) |
e28d4618 | 1646 | { |
f380e105 | 1647 | struct ctf_stream_declaration *stream_class; |
e28d4618 MD |
1648 | int ret; |
1649 | int i; | |
1650 | ||
1651 | if (stream->stream_definitions_created) | |
1652 | return 0; | |
1653 | ||
1654 | stream_class = stream->stream_class; | |
1655 | ||
1656 | if (stream_class->packet_context_decl) { | |
0d69b916 | 1657 | struct bt_definition *definition = |
e28d4618 MD |
1658 | stream_class->packet_context_decl->p.definition_new(&stream_class->packet_context_decl->p, |
1659 | stream->parent_def_scope, 0, 0, "stream.packet.context"); | |
1660 | if (!definition) { | |
1661 | ret = -EINVAL; | |
1662 | goto error; | |
1663 | } | |
1664 | stream->stream_packet_context = container_of(definition, | |
1665 | struct definition_struct, p); | |
1666 | stream->parent_def_scope = stream->stream_packet_context->p.scope; | |
1667 | } | |
1668 | if (stream_class->event_header_decl) { | |
0d69b916 | 1669 | struct bt_definition *definition = |
e28d4618 MD |
1670 | stream_class->event_header_decl->p.definition_new(&stream_class->event_header_decl->p, |
1671 | stream->parent_def_scope, 0, 0, "stream.event.header"); | |
1672 | if (!definition) { | |
1673 | ret = -EINVAL; | |
1674 | goto error; | |
1675 | } | |
1676 | stream->stream_event_header = | |
1677 | container_of(definition, struct definition_struct, p); | |
1678 | stream->parent_def_scope = stream->stream_event_header->p.scope; | |
1679 | } | |
1680 | if (stream_class->event_context_decl) { | |
0d69b916 | 1681 | struct bt_definition *definition = |
e28d4618 MD |
1682 | stream_class->event_context_decl->p.definition_new(&stream_class->event_context_decl->p, |
1683 | stream->parent_def_scope, 0, 0, "stream.event.context"); | |
1684 | if (!definition) { | |
1685 | ret = -EINVAL; | |
1686 | goto error; | |
1687 | } | |
1688 | stream->stream_event_context = | |
1689 | container_of(definition, struct definition_struct, p); | |
1690 | stream->parent_def_scope = stream->stream_event_context->p.scope; | |
1691 | } | |
1692 | stream->events_by_id = g_ptr_array_new(); | |
0c880b0a MD |
1693 | ret = copy_event_declarations_stream_class_to_stream(td, |
1694 | stream_class, stream); | |
1695 | if (ret) | |
1696 | goto error_event; | |
e28d4618 MD |
1697 | return 0; |
1698 | ||
1699 | error_event: | |
1700 | for (i = 0; i < stream->events_by_id->len; i++) { | |
c716f83b | 1701 | struct ctf_event_definition *stream_event = g_ptr_array_index(stream->events_by_id, i); |
42dc00b7 MD |
1702 | if (stream_event) |
1703 | g_free(stream_event); | |
e28d4618 MD |
1704 | } |
1705 | g_ptr_array_free(stream->events_by_id, TRUE); | |
1706 | error: | |
1707 | if (stream->stream_event_context) | |
13fad8b6 | 1708 | bt_definition_unref(&stream->stream_event_context->p); |
e28d4618 | 1709 | if (stream->stream_event_header) |
13fad8b6 | 1710 | bt_definition_unref(&stream->stream_event_header->p); |
e28d4618 | 1711 | if (stream->stream_packet_context) |
13fad8b6 | 1712 | bt_definition_unref(&stream->stream_packet_context->p); |
888ec52a MD |
1713 | fprintf(stderr, "[error] Unable to create stream (%" PRIu64 ") definitions: %s\n", |
1714 | stream_class->stream_id, strerror(-ret)); | |
e28d4618 MD |
1715 | return ret; |
1716 | } | |
1717 | ||
5bfcad93 MD |
1718 | static |
1719 | int stream_assign_class(struct ctf_trace *td, | |
1720 | struct ctf_file_stream *file_stream, | |
1721 | uint64_t stream_id) | |
1722 | { | |
1723 | struct ctf_stream_declaration *stream; | |
1724 | int ret; | |
1725 | ||
1726 | file_stream->parent.stream_id = stream_id; | |
1727 | if (stream_id >= td->streams->len) { | |
1728 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); | |
1729 | return -EINVAL; | |
1730 | } | |
1731 | stream = g_ptr_array_index(td->streams, stream_id); | |
1732 | if (!stream) { | |
1733 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); | |
1734 | return -EINVAL; | |
1735 | } | |
1736 | file_stream->parent.stream_class = stream; | |
1737 | ret = create_stream_definitions(td, &file_stream->parent); | |
1738 | if (ret) | |
1739 | return ret; | |
1740 | return 0; | |
1741 | } | |
1742 | ||
0f980a35 | 1743 | static |
ec323464 MD |
1744 | int create_stream_one_packet_index(struct ctf_stream_pos *pos, |
1745 | struct ctf_trace *td, | |
1746 | struct ctf_file_stream *file_stream, | |
1747 | size_t filesize) | |
0f980a35 | 1748 | { |
ec323464 | 1749 | struct packet_index packet_index; |
ec323464 | 1750 | uint64_t stream_id = 0; |
653906a4 | 1751 | uint64_t packet_map_len = DEFAULT_HEADER_LEN, tmp_map_len; |
ec323464 | 1752 | int first_packet = 0; |
653906a4 | 1753 | int len_index; |
0f980a35 MD |
1754 | int ret; |
1755 | ||
ec323464 | 1756 | begin: |
c2e0c69b | 1757 | memset(&packet_index, 0, sizeof(packet_index)); |
ec323464 MD |
1758 | if (!pos->mmap_offset) { |
1759 | first_packet = 1; | |
1760 | } | |
8895362d | 1761 | |
ec323464 MD |
1762 | if (filesize - pos->mmap_offset < (packet_map_len >> LOG2_CHAR_BIT)) { |
1763 | packet_map_len = (filesize - pos->mmap_offset) << LOG2_CHAR_BIT; | |
1764 | } | |
0f980a35 | 1765 | |
ec323464 MD |
1766 | if (pos->base_mma) { |
1767 | /* unmap old base */ | |
1768 | ret = munmap_align(pos->base_mma); | |
1769 | if (ret) { | |
1770 | fprintf(stderr, "[error] Unable to unmap old base: %s.\n", | |
1771 | strerror(errno)); | |
1772 | return ret; | |
0f980a35 | 1773 | } |
ec323464 MD |
1774 | pos->base_mma = NULL; |
1775 | } | |
1776 | /* map new base. Need mapping length from header. */ | |
1777 | pos->base_mma = mmap_align(packet_map_len >> LOG2_CHAR_BIT, PROT_READ, | |
1778 | MAP_PRIVATE, pos->fd, pos->mmap_offset); | |
1779 | assert(pos->base_mma != MAP_FAILED); | |
1780 | /* | |
1781 | * Use current mapping size as temporary content and packet | |
1782 | * size. | |
1783 | */ | |
1784 | pos->content_size = packet_map_len; | |
1785 | pos->packet_size = packet_map_len; | |
1786 | pos->offset = 0; /* Position of the packet header */ | |
1787 | ||
1788 | packet_index.offset = pos->mmap_offset; | |
ec323464 MD |
1789 | |
1790 | /* read and check header, set stream id (and check) */ | |
1791 | if (file_stream->parent.trace_packet_header) { | |
1792 | /* Read packet header */ | |
1793 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); | |
1794 | if (ret) { | |
1795 | if (ret == -EFAULT) | |
1796 | goto retry; | |
888ec52a | 1797 | fprintf(stderr, "[error] Unable to read packet header: %s\n", strerror(-ret)); |
ec323464 MD |
1798 | return ret; |
1799 | } | |
2ea5cc8b | 1800 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_string("magic")); |
ec323464 MD |
1801 | if (len_index >= 0) { |
1802 | struct bt_definition *field; | |
1803 | uint64_t magic; | |
1804 | ||
1805 | field = bt_struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); | |
1806 | magic = bt_get_unsigned_int(field); | |
1807 | if (magic != CTF_MAGIC) { | |
1808 | fprintf(stderr, "[error] Invalid magic number 0x%" PRIX64 " at packet %u (file offset %zd).\n", | |
1809 | magic, | |
992e8cc0 | 1810 | file_stream->pos.packet_index->len, |
ec323464 MD |
1811 | (ssize_t) pos->mmap_offset); |
1812 | return -EINVAL; | |
0f980a35 | 1813 | } |
ec323464 | 1814 | } |
0f980a35 | 1815 | |
ec323464 | 1816 | /* check uuid */ |
2ea5cc8b | 1817 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_string("uuid")); |
ec323464 MD |
1818 | if (len_index >= 0) { |
1819 | struct definition_array *defarray; | |
1820 | struct bt_definition *field; | |
1821 | uint64_t i; | |
1822 | uint8_t uuidval[BABELTRACE_UUID_LEN]; | |
0f980a35 | 1823 | |
ec323464 | 1824 | field = bt_struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
9a19a512 | 1825 | assert(field->declaration->id == BT_CTF_TYPE_ID_ARRAY); |
ec323464 MD |
1826 | defarray = container_of(field, struct definition_array, p); |
1827 | assert(bt_array_len(defarray) == BABELTRACE_UUID_LEN); | |
0f980a35 | 1828 | |
ec323464 MD |
1829 | for (i = 0; i < BABELTRACE_UUID_LEN; i++) { |
1830 | struct bt_definition *elem; | |
0f980a35 | 1831 | |
ec323464 MD |
1832 | elem = bt_array_index(defarray, i); |
1833 | uuidval[i] = bt_get_unsigned_int(elem); | |
0f980a35 | 1834 | } |
19dd40db | 1835 | ret = bt_uuid_compare(td->uuid, uuidval); |
ec323464 MD |
1836 | if (ret) { |
1837 | fprintf(stderr, "[error] Unique Universal Identifiers do not match.\n"); | |
1838 | return -EINVAL; | |
1839 | } | |
1840 | } | |
0f980a35 | 1841 | |
2ea5cc8b | 1842 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_string("stream_id")); |
ec323464 MD |
1843 | if (len_index >= 0) { |
1844 | struct bt_definition *field; | |
0f980a35 | 1845 | |
ec323464 MD |
1846 | field = bt_struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
1847 | stream_id = bt_get_unsigned_int(field); | |
0f980a35 | 1848 | } |
ec323464 | 1849 | } |
0f980a35 | 1850 | |
ec323464 MD |
1851 | if (!first_packet && file_stream->parent.stream_id != stream_id) { |
1852 | fprintf(stderr, "[error] Stream ID is changing within a stream: expecting %" PRIu64 ", but packet has %" PRIu64 "\n", | |
1853 | stream_id, | |
1854 | file_stream->parent.stream_id); | |
1855 | return -EINVAL; | |
1856 | } | |
1857 | if (first_packet) { | |
5bfcad93 | 1858 | ret = stream_assign_class(td, file_stream, stream_id); |
ec323464 MD |
1859 | if (ret) |
1860 | return ret; | |
1861 | } | |
dc48ecad | 1862 | |
ec323464 MD |
1863 | if (file_stream->parent.stream_packet_context) { |
1864 | /* Read packet context */ | |
1865 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); | |
1866 | if (ret) { | |
1867 | if (ret == -EFAULT) | |
1868 | goto retry; | |
888ec52a | 1869 | fprintf(stderr, "[error] Unable to read packet context: %s\n", strerror(-ret)); |
ec323464 MD |
1870 | return ret; |
1871 | } | |
95b34f38 | 1872 | /* read packet size from header */ |
2ea5cc8b | 1873 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_string("packet_size")); |
ec323464 MD |
1874 | if (len_index >= 0) { |
1875 | struct bt_definition *field; | |
dc48ecad | 1876 | |
ec323464 | 1877 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
95b34f38 | 1878 | packet_index.packet_size = bt_get_unsigned_int(field); |
ec323464 MD |
1879 | } else { |
1880 | /* Use file size for packet size */ | |
95b34f38 | 1881 | packet_index.packet_size = filesize * CHAR_BIT; |
ec323464 | 1882 | } |
75cc2c35 | 1883 | |
95b34f38 | 1884 | /* read content size from header */ |
2ea5cc8b | 1885 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_string("content_size")); |
ec323464 MD |
1886 | if (len_index >= 0) { |
1887 | struct bt_definition *field; | |
75cc2c35 | 1888 | |
ec323464 | 1889 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
95b34f38 | 1890 | packet_index.content_size = bt_get_unsigned_int(field); |
ec323464 | 1891 | } else { |
95b34f38 MD |
1892 | /* Use packet size if non-zero, else file size */ |
1893 | packet_index.content_size = packet_index.packet_size ? : filesize * CHAR_BIT; | |
ec323464 | 1894 | } |
41e82e00 | 1895 | |
ec323464 | 1896 | /* read timestamp begin from header */ |
2ea5cc8b | 1897 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_string("timestamp_begin")); |
ec323464 MD |
1898 | if (len_index >= 0) { |
1899 | struct bt_definition *field; | |
41e82e00 | 1900 | |
ec323464 | 1901 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
992e8cc0 | 1902 | packet_index.ts_cycles.timestamp_begin = bt_get_unsigned_int(field); |
4c62e2d8 | 1903 | if (file_stream->parent.stream_class->trace->parent.collection) { |
992e8cc0 | 1904 | packet_index.ts_real.timestamp_begin = |
ec323464 MD |
1905 | ctf_get_real_timestamp( |
1906 | &file_stream->parent, | |
992e8cc0 | 1907 | packet_index.ts_cycles.timestamp_begin); |
41e82e00 | 1908 | } |
0f980a35 | 1909 | } |
546293fa | 1910 | |
ec323464 | 1911 | /* read timestamp end from header */ |
2ea5cc8b | 1912 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_string("timestamp_end")); |
ec323464 MD |
1913 | if (len_index >= 0) { |
1914 | struct bt_definition *field; | |
1915 | ||
1916 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); | |
992e8cc0 | 1917 | packet_index.ts_cycles.timestamp_end = bt_get_unsigned_int(field); |
4c62e2d8 | 1918 | if (file_stream->parent.stream_class->trace->parent.collection) { |
992e8cc0 | 1919 | packet_index.ts_real.timestamp_end = |
ec323464 MD |
1920 | ctf_get_real_timestamp( |
1921 | &file_stream->parent, | |
992e8cc0 | 1922 | packet_index.ts_cycles.timestamp_end); |
ec323464 | 1923 | } |
546293fa MD |
1924 | } |
1925 | ||
ec323464 | 1926 | /* read events discarded from header */ |
2ea5cc8b | 1927 | len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_string("events_discarded")); |
ec323464 MD |
1928 | if (len_index >= 0) { |
1929 | struct bt_definition *field; | |
1930 | ||
1931 | field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); | |
1932 | packet_index.events_discarded = bt_get_unsigned_int(field); | |
1933 | packet_index.events_discarded_len = bt_get_int_len(field); | |
546293fa | 1934 | } |
6246fd54 JD |
1935 | |
1936 | /* read packet_seq_num from header */ | |
1937 | len_index = bt_struct_declaration_lookup_field_index( | |
1938 | file_stream->parent.stream_packet_context->declaration, | |
2ea5cc8b | 1939 | g_quark_from_string("packet_seq_num")); |
6246fd54 JD |
1940 | if (len_index >= 0) { |
1941 | struct bt_definition *field; | |
1942 | ||
1943 | field = bt_struct_definition_get_field_from_index( | |
1944 | file_stream->parent.stream_packet_context, | |
1945 | len_index); | |
1946 | packet_index.packet_seq_num = bt_get_unsigned_int(field); | |
1947 | } | |
ec323464 MD |
1948 | } else { |
1949 | /* Use file size for packet size */ | |
2d686891 MD |
1950 | packet_index.packet_size = filesize * CHAR_BIT; |
1951 | /* Use packet size if non-zero, else file size */ | |
1952 | packet_index.content_size = packet_index.packet_size ? : filesize * CHAR_BIT; | |
ec323464 MD |
1953 | } |
1954 | ||
1955 | /* Validate content size and packet size values */ | |
1956 | if (packet_index.content_size > packet_index.packet_size) { | |
1957 | fprintf(stderr, "[error] Content size (%" PRIu64 " bits) is larger than packet size (%" PRIu64 " bits).\n", | |
1958 | packet_index.content_size, packet_index.packet_size); | |
1959 | return -EINVAL; | |
1960 | } | |
1961 | ||
1962 | if (packet_index.packet_size > ((uint64_t) filesize - packet_index.offset) * CHAR_BIT) { | |
1963 | fprintf(stderr, "[error] Packet size (%" PRIu64 " bits) is larger than remaining file size (%" PRIu64 " bits).\n", | |
1964 | packet_index.packet_size, ((uint64_t) filesize - packet_index.offset) * CHAR_BIT); | |
1965 | return -EINVAL; | |
1966 | } | |
546293fa | 1967 | |
a7ac9efd MD |
1968 | if (packet_index.content_size < pos->offset) { |
1969 | fprintf(stderr, "[error] Invalid CTF stream: content size is smaller than packet headers.\n"); | |
1970 | return -EINVAL; | |
1971 | } | |
1972 | ||
2d686891 MD |
1973 | if ((packet_index.packet_size >> LOG2_CHAR_BIT) == 0) { |
1974 | fprintf(stderr, "[error] Invalid CTF stream: packet size needs to be at least one byte\n"); | |
1975 | return -EINVAL; | |
1976 | } | |
1977 | ||
ec323464 MD |
1978 | /* Save position after header and context */ |
1979 | packet_index.data_offset = pos->offset; | |
0f980a35 | 1980 | |
ec323464 | 1981 | /* add index to packet array */ |
992e8cc0 | 1982 | g_array_append_val(file_stream->pos.packet_index, packet_index); |
0f980a35 | 1983 | |
ec323464 MD |
1984 | pos->mmap_offset += packet_index.packet_size >> LOG2_CHAR_BIT; |
1985 | ||
1986 | return 0; | |
1987 | ||
1988 | /* Retry with larger mapping */ | |
1989 | retry: | |
1990 | if (packet_map_len == ((filesize - pos->mmap_offset) << LOG2_CHAR_BIT)) { | |
1991 | /* | |
1992 | * Reached EOF, but still expecting header/context data. | |
1993 | */ | |
1994 | fprintf(stderr, "[error] Reached end of file, but still expecting header or context fields.\n"); | |
1995 | return -EFAULT; | |
1996 | } | |
1997 | /* Double the mapping len, and retry */ | |
1998 | tmp_map_len = packet_map_len << 1; | |
1999 | if (tmp_map_len >> 1 != packet_map_len) { | |
2000 | /* Overflow */ | |
888ec52a | 2001 | fprintf(stderr, "[error] Packet mapping length overflow\n"); |
ec323464 | 2002 | return -EFAULT; |
0f980a35 | 2003 | } |
ec323464 MD |
2004 | packet_map_len = tmp_map_len; |
2005 | goto begin; | |
2006 | } | |
2007 | ||
2008 | static | |
2009 | int create_stream_packet_index(struct ctf_trace *td, | |
2010 | struct ctf_file_stream *file_stream) | |
2011 | { | |
2012 | struct ctf_stream_pos *pos; | |
2013 | struct stat filestats; | |
2014 | int ret; | |
2015 | ||
2016 | pos = &file_stream->pos; | |
0f980a35 | 2017 | |
ec323464 MD |
2018 | ret = fstat(pos->fd, &filestats); |
2019 | if (ret < 0) | |
2020 | return ret; | |
2021 | ||
5bfcad93 MD |
2022 | /* Deal with empty files */ |
2023 | if (!filestats.st_size) { | |
2024 | if (file_stream->parent.trace_packet_header | |
2025 | || file_stream->parent.stream_packet_context) { | |
2026 | /* | |
2027 | * We expect a trace packet header and/or stream packet | |
2028 | * context. Since a trace needs to have at least one | |
2029 | * packet, empty files are therefore not accepted. | |
2030 | */ | |
2031 | fprintf(stderr, "[error] Encountered an empty file, but expecting a trace packet header.\n"); | |
2032 | return -EINVAL; | |
2033 | } else { | |
2034 | /* | |
2035 | * Without trace packet header nor stream packet | |
2036 | * context, a one-packet trace can indeed be empty. This | |
2037 | * is only valid if there is only one stream class: 0. | |
2038 | */ | |
2039 | ret = stream_assign_class(td, file_stream, 0); | |
2040 | if (ret) | |
2041 | return ret; | |
2042 | return 0; | |
2043 | } | |
2044 | } | |
2045 | ||
ec323464 MD |
2046 | for (pos->mmap_offset = 0; pos->mmap_offset < filestats.st_size; ) { |
2047 | ret = create_stream_one_packet_index(pos, td, file_stream, | |
2048 | filestats.st_size); | |
2049 | if (ret) | |
2050 | return ret; | |
2051 | } | |
0f980a35 MD |
2052 | return 0; |
2053 | } | |
2054 | ||
e28d4618 | 2055 | static |
9e88d150 | 2056 | int create_trace_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream) |
e28d4618 MD |
2057 | { |
2058 | int ret; | |
2059 | ||
2060 | if (td->packet_header_decl) { | |
0d69b916 | 2061 | struct bt_definition *definition = |
e28d4618 MD |
2062 | td->packet_header_decl->p.definition_new(&td->packet_header_decl->p, |
2063 | stream->parent_def_scope, 0, 0, "trace.packet.header"); | |
2064 | if (!definition) { | |
2065 | ret = -EINVAL; | |
2066 | goto error; | |
2067 | } | |
9a19a512 | 2068 | stream->trace_packet_header = |
e28d4618 MD |
2069 | container_of(definition, struct definition_struct, p); |
2070 | stream->parent_def_scope = stream->trace_packet_header->p.scope; | |
2071 | } | |
2072 | ||
2073 | return 0; | |
2074 | ||
2075 | error: | |
888ec52a | 2076 | fprintf(stderr, "[error] Unable to create trace definitions: %s\n", strerror(-ret)); |
e28d4618 MD |
2077 | return ret; |
2078 | } | |
2079 | ||
0ace7505 JD |
2080 | static |
2081 | int import_stream_packet_index(struct ctf_trace *td, | |
2082 | struct ctf_file_stream *file_stream) | |
2083 | { | |
0ace7505 | 2084 | struct ctf_stream_pos *pos; |
3ecd366e | 2085 | struct ctf_packet_index *ctf_index = NULL; |
0ace7505 JD |
2086 | struct ctf_packet_index_file_hdr index_hdr; |
2087 | struct packet_index index; | |
480ef057 | 2088 | uint32_t packet_index_len, index_minor; |
0ace7505 JD |
2089 | int ret = 0; |
2090 | int first_packet = 1; | |
2091 | size_t len; | |
2092 | ||
2093 | pos = &file_stream->pos; | |
2094 | ||
2095 | len = fread(&index_hdr, sizeof(index_hdr), 1, pos->index_fp); | |
2096 | if (len != 1) { | |
2097 | perror("read index file header"); | |
2098 | goto error; | |
2099 | } | |
2100 | ||
2101 | /* Check the index header */ | |
2102 | if (be32toh(index_hdr.magic) != CTF_INDEX_MAGIC) { | |
2103 | fprintf(stderr, "[error] wrong index magic\n"); | |
2104 | ret = -1; | |
2105 | goto error; | |
2106 | } | |
2107 | if (be32toh(index_hdr.index_major) != CTF_INDEX_MAJOR) { | |
2b8dbf9a MJ |
2108 | fprintf(stderr, "[error] Incompatible index file %" PRIu32 |
2109 | ".%" PRIu32 ", supported %d.%d\n", | |
2110 | be32toh(index_hdr.index_major), | |
2111 | be32toh(index_hdr.index_minor), CTF_INDEX_MAJOR, | |
0ace7505 JD |
2112 | CTF_INDEX_MINOR); |
2113 | ret = -1; | |
2114 | goto error; | |
2115 | } | |
480ef057 JD |
2116 | index_minor = be32toh(index_hdr.index_minor); |
2117 | ||
e83ce12a JD |
2118 | packet_index_len = be32toh(index_hdr.packet_index_len); |
2119 | if (packet_index_len == 0) { | |
a74d9cb2 MD |
2120 | fprintf(stderr, "[error] Packet index length cannot be 0.\n"); |
2121 | ret = -1; | |
2122 | goto error; | |
2123 | } | |
3ecd366e MD |
2124 | /* |
2125 | * Allocate the index length found in header, not internal | |
2126 | * representation. | |
2127 | */ | |
e83ce12a JD |
2128 | ctf_index = g_malloc0(packet_index_len); |
2129 | while (fread(ctf_index, packet_index_len, 1, | |
ad40ac1a | 2130 | pos->index_fp) == 1) { |
0ace7505 | 2131 | uint64_t stream_id; |
51e0087f | 2132 | struct ctf_stream_declaration *stream = NULL; |
0ace7505 JD |
2133 | |
2134 | memset(&index, 0, sizeof(index)); | |
3ecd366e MD |
2135 | index.offset = be64toh(ctf_index->offset); |
2136 | index.packet_size = be64toh(ctf_index->packet_size); | |
2137 | index.content_size = be64toh(ctf_index->content_size); | |
2138 | index.ts_cycles.timestamp_begin = be64toh(ctf_index->timestamp_begin); | |
2139 | index.ts_cycles.timestamp_end = be64toh(ctf_index->timestamp_end); | |
2140 | index.events_discarded = be64toh(ctf_index->events_discarded); | |
0ace7505 | 2141 | index.events_discarded_len = 64; |
e69dd258 | 2142 | index.data_offset = -1; |
3ecd366e | 2143 | stream_id = be64toh(ctf_index->stream_id); |
480ef057 JD |
2144 | if (index_minor >= 1) { |
2145 | index.stream_instance_id = be64toh(ctf_index->stream_instance_id); | |
2146 | index.packet_seq_num = be64toh(ctf_index->packet_seq_num); | |
2147 | } | |
0ace7505 JD |
2148 | |
2149 | if (!first_packet) { | |
2150 | /* add index to packet array */ | |
992e8cc0 | 2151 | g_array_append_val(file_stream->pos.packet_index, index); |
0ace7505 JD |
2152 | continue; |
2153 | } | |
2154 | ||
2155 | file_stream->parent.stream_id = stream_id; | |
51e0087f JG |
2156 | if (stream_id < td->streams->len) { |
2157 | stream = g_ptr_array_index(td->streams, stream_id); | |
2158 | } | |
0ace7505 JD |
2159 | if (!stream) { |
2160 | fprintf(stderr, "[error] Stream %" PRIu64 | |
2161 | " is not declared in metadata.\n", | |
2162 | stream_id); | |
2163 | ret = -EINVAL; | |
2164 | goto error; | |
2165 | } | |
2166 | file_stream->parent.stream_class = stream; | |
2167 | ret = create_stream_definitions(td, &file_stream->parent); | |
2168 | if (ret) | |
2169 | goto error; | |
2170 | first_packet = 0; | |
2171 | /* add index to packet array */ | |
992e8cc0 | 2172 | g_array_append_val(file_stream->pos.packet_index, index); |
0ace7505 JD |
2173 | } |
2174 | ||
dae407df JD |
2175 | /* Index containing only the header. */ |
2176 | if (!file_stream->parent.stream_class) { | |
2177 | ret = -1; | |
2178 | goto error; | |
2179 | } | |
2180 | ||
0ace7505 JD |
2181 | ret = 0; |
2182 | ||
2183 | error: | |
3ecd366e | 2184 | g_free(ctf_index); |
0ace7505 JD |
2185 | return ret; |
2186 | } | |
2187 | ||
0f980a35 MD |
2188 | /* |
2189 | * Note: many file streams can inherit from the same stream class | |
2190 | * description (metadata). | |
2191 | */ | |
2192 | static | |
b086c01a | 2193 | int ctf_open_file_stream_read(struct ctf_trace *td, const char *path, int flags, |
1cf393f6 | 2194 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
b086c01a | 2195 | int whence)) |
0f980a35 | 2196 | { |
f824ae04 | 2197 | int ret, fd, closeret; |
0f980a35 | 2198 | struct ctf_file_stream *file_stream; |
ff075710 | 2199 | struct stat statbuf; |
0ace7505 | 2200 | char *index_name; |
0f980a35 | 2201 | |
ff075710 MD |
2202 | fd = openat(td->dirfd, path, flags); |
2203 | if (fd < 0) { | |
a569a564 | 2204 | perror("File stream openat()"); |
ff075710 | 2205 | ret = fd; |
0f980a35 | 2206 | goto error; |
a569a564 | 2207 | } |
ff075710 MD |
2208 | |
2209 | /* Don't try to mmap subdirectories. Skip them, return success. */ | |
2210 | ret = fstat(fd, &statbuf); | |
2211 | if (ret) { | |
2212 | perror("File stream fstat()"); | |
2213 | goto fstat_error; | |
2214 | } | |
2215 | if (S_ISDIR(statbuf.st_mode)) { | |
0ace7505 JD |
2216 | if (strncmp(path, "index", 5) != 0) { |
2217 | fprintf(stderr, "[warning] Skipping directory '%s' " | |
2218 | "found in trace\n", path); | |
2219 | } | |
ff075710 MD |
2220 | ret = 0; |
2221 | goto fd_is_dir_ok; | |
2222 | } | |
de52f946 MD |
2223 | if (!statbuf.st_size) { |
2224 | /** Skip empty files. */ | |
2225 | ret = 0; | |
2226 | goto fd_is_empty_file; | |
2227 | } | |
ff075710 | 2228 | |
0f980a35 | 2229 | file_stream = g_new0(struct ctf_file_stream, 1); |
3a25e036 | 2230 | file_stream->pos.last_offset = LAST_OFFSET_POISON; |
0ace7505 JD |
2231 | file_stream->pos.fd = -1; |
2232 | file_stream->pos.index_fp = NULL; | |
b086c01a | 2233 | |
87148dc7 MD |
2234 | strncpy(file_stream->parent.path, path, PATH_MAX); |
2235 | file_stream->parent.path[PATH_MAX - 1] = '\0'; | |
2236 | ||
06789ffd MD |
2237 | if (packet_seek) { |
2238 | file_stream->pos.packet_seek = packet_seek; | |
b086c01a | 2239 | } else { |
06789ffd | 2240 | fprintf(stderr, "[error] packet_seek function undefined.\n"); |
b086c01a JD |
2241 | ret = -1; |
2242 | goto error_def; | |
2243 | } | |
2244 | ||
ca334c72 | 2245 | ret = ctf_init_pos(&file_stream->pos, &td->parent, fd, flags); |
f824ae04 MD |
2246 | if (ret) |
2247 | goto error_def; | |
2d0bea29 | 2248 | ret = create_trace_definitions(td, &file_stream->parent); |
e28d4618 MD |
2249 | if (ret) |
2250 | goto error_def; | |
25ccc85b | 2251 | /* |
50052405 | 2252 | * For now, only a single clock per trace is supported. |
25ccc85b | 2253 | */ |
7ec78969 | 2254 | file_stream->parent.current_clock = td->parent.single_clock; |
0ace7505 JD |
2255 | |
2256 | /* | |
2257 | * Allocate the index name for this stream and try to open it. | |
2258 | */ | |
2259 | index_name = malloc((strlen(path) + sizeof(INDEX_PATH)) * sizeof(char)); | |
2260 | if (!index_name) { | |
2261 | fprintf(stderr, "[error] Cannot allocate index filename\n"); | |
de52f946 | 2262 | ret = -ENOMEM; |
0ace7505 | 2263 | goto error_def; |
888ec52a | 2264 | } |
0ace7505 JD |
2265 | snprintf(index_name, strlen(path) + sizeof(INDEX_PATH), |
2266 | INDEX_PATH, path); | |
2267 | ||
0bb657dc | 2268 | if (bt_faccessat(td->dirfd, td->parent.path, index_name, O_RDONLY, 0) < 0) { |
0ace7505 JD |
2269 | ret = create_stream_packet_index(td, file_stream); |
2270 | if (ret) { | |
2271 | fprintf(stderr, "[error] Stream index creation error.\n"); | |
2272 | goto error_index; | |
2273 | } | |
2274 | } else { | |
2275 | ret = openat(td->dirfd, index_name, flags); | |
2276 | if (ret < 0) { | |
2277 | perror("Index file openat()"); | |
2278 | ret = -1; | |
2279 | goto error_free; | |
2280 | } | |
2281 | file_stream->pos.index_fp = fdopen(ret, "r"); | |
2f0c6a52 MD |
2282 | if (!file_stream->pos.index_fp) { |
2283 | perror("fdopen() error"); | |
2284 | goto error_free; | |
2285 | } | |
0ace7505 JD |
2286 | ret = import_stream_packet_index(td, file_stream); |
2287 | if (ret) { | |
2288 | ret = -1; | |
2289 | goto error_index; | |
2290 | } | |
2291 | ret = fclose(file_stream->pos.index_fp); | |
2292 | if (ret < 0) { | |
2293 | perror("close index"); | |
2294 | goto error_free; | |
2295 | } | |
2296 | } | |
2297 | free(index_name); | |
2298 | ||
0f980a35 | 2299 | /* Add stream file to stream class */ |
2d0bea29 MD |
2300 | g_ptr_array_add(file_stream->parent.stream_class->streams, |
2301 | &file_stream->parent); | |
0f980a35 MD |
2302 | return 0; |
2303 | ||
2304 | error_index: | |
0ace7505 JD |
2305 | if (file_stream->pos.index_fp) { |
2306 | ret = fclose(file_stream->pos.index_fp); | |
2307 | if (ret < 0) { | |
2308 | perror("close index"); | |
2309 | } | |
2310 | } | |
2d0bea29 | 2311 | if (file_stream->parent.trace_packet_header) |
13fad8b6 | 2312 | bt_definition_unref(&file_stream->parent.trace_packet_header->p); |
0ace7505 JD |
2313 | error_free: |
2314 | free(index_name); | |
e28d4618 | 2315 | error_def: |
f824ae04 MD |
2316 | closeret = ctf_fini_pos(&file_stream->pos); |
2317 | if (closeret) { | |
2318 | fprintf(stderr, "Error on ctf_fini_pos\n"); | |
2319 | } | |
0f980a35 | 2320 | g_free(file_stream); |
de52f946 | 2321 | fd_is_empty_file: |
ff075710 MD |
2322 | fd_is_dir_ok: |
2323 | fstat_error: | |
f824ae04 MD |
2324 | closeret = close(fd); |
2325 | if (closeret) { | |
2326 | perror("Error on fd close"); | |
2327 | } | |
0f980a35 | 2328 | error: |
65102a8c MD |
2329 | return ret; |
2330 | } | |
2331 | ||
bbefb8dd | 2332 | static |
5b80ddfb | 2333 | int ctf_open_trace_read(struct ctf_trace *td, |
8c250d87 | 2334 | const char *path, int flags, |
1cf393f6 | 2335 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
ae23d232 | 2336 | int whence), FILE *metadata_fp) |
bbefb8dd | 2337 | { |
6514b4af | 2338 | struct ctf_scanner *scanner; |
f824ae04 | 2339 | int ret, closeret; |
65102a8c MD |
2340 | struct dirent *dirent; |
2341 | struct dirent *diriter; | |
2342 | size_t dirent_len; | |
6038c87e | 2343 | int pc_name_max; |
0ace7505 | 2344 | char *ext; |
bbefb8dd | 2345 | |
46322b33 | 2346 | td->flags = flags; |
bbefb8dd MD |
2347 | |
2348 | /* Open trace directory */ | |
46322b33 MD |
2349 | td->dir = opendir(path); |
2350 | if (!td->dir) { | |
6a6b384c | 2351 | fprintf(stderr, "[error] Unable to open trace directory \"%s\".\n", path); |
bbefb8dd MD |
2352 | ret = -ENOENT; |
2353 | goto error; | |
2354 | } | |
2355 | ||
46322b33 MD |
2356 | td->dirfd = open(path, 0); |
2357 | if (td->dirfd < 0) { | |
6a6b384c | 2358 | fprintf(stderr, "[error] Unable to open trace directory file descriptor for path \"%s\".\n", path); |
a569a564 MD |
2359 | perror("Trace directory open"); |
2360 | ret = -errno; | |
65102a8c MD |
2361 | goto error_dirfd; |
2362 | } | |
caf929fa MD |
2363 | strncpy(td->parent.path, path, sizeof(td->parent.path)); |
2364 | td->parent.path[sizeof(td->parent.path) - 1] = '\0'; | |
0f980a35 | 2365 | |
65102a8c MD |
2366 | /* |
2367 | * Keep the metadata file separate. | |
0c880b0a MD |
2368 | * Keep scanner object local to the open. We don't support |
2369 | * incremental metadata append for on-disk traces. | |
65102a8c | 2370 | */ |
6514b4af MD |
2371 | scanner = ctf_scanner_alloc(); |
2372 | if (!scanner) { | |
2373 | fprintf(stderr, "[error] Error allocating scanner\n"); | |
2374 | ret = -ENOMEM; | |
2375 | goto error_metadata; | |
2376 | } | |
0c880b0a | 2377 | ret = ctf_trace_metadata_read(td, metadata_fp, scanner, 0); |
6514b4af | 2378 | ctf_scanner_free(scanner); |
65102a8c | 2379 | if (ret) { |
251fc08c MD |
2380 | if (ret == -ENOENT) { |
2381 | fprintf(stderr, "[warning] Empty metadata.\n"); | |
2382 | } | |
6a6b384c | 2383 | fprintf(stderr, "[warning] Unable to open trace metadata for path \"%s\".\n", path); |
65102a8c MD |
2384 | goto error_metadata; |
2385 | } | |
bbefb8dd MD |
2386 | |
2387 | /* | |
2388 | * Open each stream: for each file, try to open, check magic | |
2389 | * number, and get the stream ID to add to the right location in | |
2390 | * the stream array. | |
bbefb8dd MD |
2391 | */ |
2392 | ||
6038c87e MJ |
2393 | pc_name_max = fpathconf(td->dirfd, _PC_NAME_MAX); |
2394 | if (pc_name_max < 0) { | |
2395 | perror("Error on fpathconf"); | |
2396 | fprintf(stderr, "[error] Failed to get _PC_NAME_MAX for path \"%s\".\n", path); | |
2397 | ret = -1; | |
2398 | goto error_metadata; | |
2399 | } | |
2400 | ||
2401 | dirent_len = offsetof(struct dirent, d_name) + pc_name_max + 1; | |
bbefb8dd | 2402 | |
65102a8c | 2403 | dirent = malloc(dirent_len); |
bbefb8dd | 2404 | |
65102a8c | 2405 | for (;;) { |
46322b33 | 2406 | ret = readdir_r(td->dir, dirent, &diriter); |
65102a8c | 2407 | if (ret) { |
3394d22e | 2408 | fprintf(stderr, "[error] Readdir error.\n"); |
65102a8c | 2409 | goto readdir_error; |
65102a8c MD |
2410 | } |
2411 | if (!diriter) | |
2412 | break; | |
d8ea2d29 MD |
2413 | /* Ignore hidden files, ., .. and metadata. */ |
2414 | if (!strncmp(diriter->d_name, ".", 1) | |
65102a8c MD |
2415 | || !strcmp(diriter->d_name, "..") |
2416 | || !strcmp(diriter->d_name, "metadata")) | |
2417 | continue; | |
0ace7505 JD |
2418 | |
2419 | /* Ignore index files : *.idx */ | |
2420 | ext = strrchr(diriter->d_name, '.'); | |
2421 | if (ext && (!strcmp(ext, ".idx"))) { | |
2422 | continue; | |
2423 | } | |
2424 | ||
06789ffd MD |
2425 | ret = ctf_open_file_stream_read(td, diriter->d_name, |
2426 | flags, packet_seek); | |
dc48ecad | 2427 | if (ret) { |
3394d22e | 2428 | fprintf(stderr, "[error] Open file stream error.\n"); |
dc48ecad MD |
2429 | goto readdir_error; |
2430 | } | |
65102a8c | 2431 | } |
bbefb8dd | 2432 | |
65102a8c | 2433 | free(dirent); |
bbefb8dd | 2434 | return 0; |
65102a8c MD |
2435 | |
2436 | readdir_error: | |
2437 | free(dirent); | |
2438 | error_metadata: | |
f824ae04 MD |
2439 | closeret = close(td->dirfd); |
2440 | if (closeret) { | |
2441 | perror("Error on fd close"); | |
2442 | } | |
65102a8c | 2443 | error_dirfd: |
f824ae04 MD |
2444 | closeret = closedir(td->dir); |
2445 | if (closeret) { | |
2446 | perror("Error on closedir"); | |
2447 | } | |
bbefb8dd MD |
2448 | error: |
2449 | return ret; | |
2450 | } | |
2451 | ||
03798a93 JD |
2452 | /* |
2453 | * ctf_open_trace: Open a CTF trace and index it. | |
2454 | * Note that the user must seek the trace after the open (using the iterator) | |
2455 | * since the index creation read it entirely. | |
2456 | */ | |
e9378815 | 2457 | static |
1b8455b7 | 2458 | struct bt_trace_descriptor *ctf_open_trace(const char *path, int flags, |
1cf393f6 | 2459 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
ae23d232 | 2460 | int whence), FILE *metadata_fp) |
bbefb8dd | 2461 | { |
46322b33 | 2462 | struct ctf_trace *td; |
bbefb8dd MD |
2463 | int ret; |
2464 | ||
2715de36 MD |
2465 | /* |
2466 | * If packet_seek is NULL, we provide our default version. | |
2467 | */ | |
2468 | if (!packet_seek) | |
2469 | packet_seek = ctf_packet_seek; | |
2470 | ||
46322b33 | 2471 | td = g_new0(struct ctf_trace, 1); |
40af9f9f JG |
2472 | if (!td) { |
2473 | goto error; | |
2474 | } | |
2475 | init_trace_descriptor(&td->parent); | |
bbefb8dd | 2476 | |
8c572eba | 2477 | switch (flags & O_ACCMODE) { |
bbefb8dd | 2478 | case O_RDONLY: |
b61922b5 | 2479 | if (!path) { |
3394d22e | 2480 | fprintf(stderr, "[error] Path missing for input CTF trace.\n"); |
b61922b5 MD |
2481 | goto error; |
2482 | } | |
06789ffd | 2483 | ret = ctf_open_trace_read(td, path, flags, packet_seek, metadata_fp); |
bbefb8dd MD |
2484 | if (ret) |
2485 | goto error; | |
2486 | break; | |
989c73bc | 2487 | case O_RDWR: |
3394d22e | 2488 | fprintf(stderr, "[error] Opening CTF traces for output is not supported yet.\n"); |
46322b33 | 2489 | goto error; |
bbefb8dd | 2490 | default: |
3394d22e | 2491 | fprintf(stderr, "[error] Incorrect open flags.\n"); |
bbefb8dd MD |
2492 | goto error; |
2493 | } | |
2494 | ||
c40a57e5 AB |
2495 | ret = trace_debug_info_create(td); |
2496 | if (ret) { | |
2497 | goto error; | |
2498 | } | |
2499 | ||
46322b33 | 2500 | return &td->parent; |
bbefb8dd | 2501 | error: |
5dafc78d MJ |
2502 | if (td) { |
2503 | trace_debug_info_destroy(td); | |
2504 | g_free(td); | |
2505 | } | |
bbefb8dd MD |
2506 | return NULL; |
2507 | } | |
2508 | ||
2e937fb4 | 2509 | static |
f571dfb1 | 2510 | void ctf_init_mmap_pos(struct ctf_stream_pos *pos, |
c150f912 | 2511 | struct bt_mmap_stream *mmap_info) |
f571dfb1 JD |
2512 | { |
2513 | pos->mmap_offset = 0; | |
2514 | pos->packet_size = 0; | |
2515 | pos->content_size = 0; | |
2516 | pos->content_size_loc = NULL; | |
2517 | pos->fd = mmap_info->fd; | |
aee35fcc | 2518 | pos->base_mma = NULL; |
f571dfb1 JD |
2519 | pos->offset = 0; |
2520 | pos->dummy = false; | |
2521 | pos->cur_index = 0; | |
f571dfb1 JD |
2522 | pos->prot = PROT_READ; |
2523 | pos->flags = MAP_PRIVATE; | |
2524 | pos->parent.rw_table = read_dispatch_table; | |
2525 | pos->parent.event_cb = ctf_read_event; | |
731087d8 | 2526 | pos->priv = mmap_info->priv; |
f1f52630 MD |
2527 | pos->packet_index = g_array_new(FALSE, TRUE, |
2528 | sizeof(struct packet_index)); | |
f571dfb1 JD |
2529 | } |
2530 | ||
2531 | static | |
2532 | int prepare_mmap_stream_definition(struct ctf_trace *td, | |
5805251d JD |
2533 | struct ctf_file_stream *file_stream, |
2534 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, | |
2535 | int whence)) | |
f571dfb1 | 2536 | { |
f380e105 | 2537 | struct ctf_stream_declaration *stream; |
5805251d | 2538 | uint64_t stream_id; |
f571dfb1 JD |
2539 | int ret; |
2540 | ||
5805251d JD |
2541 | /* Ask for the first packet to get the stream_id. */ |
2542 | packet_seek(&file_stream->pos.parent, 0, SEEK_SET); | |
2543 | stream_id = file_stream->parent.stream_id; | |
f571dfb1 | 2544 | if (stream_id >= td->streams->len) { |
3394d22e | 2545 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared " |
f571dfb1 JD |
2546 | "in metadata.\n", stream_id); |
2547 | ret = -EINVAL; | |
2548 | goto end; | |
2549 | } | |
2550 | stream = g_ptr_array_index(td->streams, stream_id); | |
2551 | if (!stream) { | |
3394d22e | 2552 | fprintf(stderr, "[error] Stream %" PRIu64 " is not declared " |
f571dfb1 JD |
2553 | "in metadata.\n", stream_id); |
2554 | ret = -EINVAL; | |
2555 | goto end; | |
2556 | } | |
2557 | file_stream->parent.stream_class = stream; | |
2558 | ret = create_stream_definitions(td, &file_stream->parent); | |
2559 | end: | |
2560 | return ret; | |
2561 | } | |
2562 | ||
2563 | static | |
2564 | int ctf_open_mmap_stream_read(struct ctf_trace *td, | |
c150f912 | 2565 | struct bt_mmap_stream *mmap_info, |
1cf393f6 | 2566 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
f571dfb1 JD |
2567 | int whence)) |
2568 | { | |
2569 | int ret; | |
2570 | struct ctf_file_stream *file_stream; | |
2571 | ||
2572 | file_stream = g_new0(struct ctf_file_stream, 1); | |
5805251d | 2573 | file_stream->parent.stream_id = -1ULL; |
3a25e036 | 2574 | file_stream->pos.last_offset = LAST_OFFSET_POISON; |
f571dfb1 JD |
2575 | ctf_init_mmap_pos(&file_stream->pos, mmap_info); |
2576 | ||
06789ffd | 2577 | file_stream->pos.packet_seek = packet_seek; |
f571dfb1 JD |
2578 | |
2579 | ret = create_trace_definitions(td, &file_stream->parent); | |
2580 | if (ret) { | |
2581 | goto error_def; | |
2582 | } | |
2583 | ||
5805251d | 2584 | ret = prepare_mmap_stream_definition(td, file_stream, packet_seek); |
f571dfb1 JD |
2585 | if (ret) |
2586 | goto error_index; | |
2587 | ||
f7bbd502 | 2588 | /* |
50052405 | 2589 | * For now, only a single clock per trace is supported. |
f7bbd502 | 2590 | */ |
7ec78969 | 2591 | file_stream->parent.current_clock = td->parent.single_clock; |
f7bbd502 | 2592 | |
f571dfb1 JD |
2593 | /* Add stream file to stream class */ |
2594 | g_ptr_array_add(file_stream->parent.stream_class->streams, | |
2595 | &file_stream->parent); | |
2596 | return 0; | |
2597 | ||
2598 | error_index: | |
2599 | if (file_stream->parent.trace_packet_header) | |
13fad8b6 | 2600 | bt_definition_unref(&file_stream->parent.trace_packet_header->p); |
f571dfb1 JD |
2601 | error_def: |
2602 | g_free(file_stream); | |
2603 | return ret; | |
2604 | } | |
2605 | ||
2e937fb4 | 2606 | static |
f571dfb1 | 2607 | int ctf_open_mmap_trace_read(struct ctf_trace *td, |
c150f912 | 2608 | struct bt_mmap_stream_list *mmap_list, |
1cf393f6 | 2609 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
f571dfb1 JD |
2610 | int whence), |
2611 | FILE *metadata_fp) | |
2612 | { | |
2613 | int ret; | |
c150f912 | 2614 | struct bt_mmap_stream *mmap_info; |
f571dfb1 | 2615 | |
0c880b0a MD |
2616 | td->scanner = ctf_scanner_alloc(); |
2617 | if (!td->scanner) { | |
6514b4af MD |
2618 | fprintf(stderr, "[error] Error allocating scanner\n"); |
2619 | ret = -ENOMEM; | |
0c880b0a | 2620 | goto error; |
6514b4af | 2621 | } |
0c880b0a | 2622 | ret = ctf_trace_metadata_read(td, metadata_fp, td->scanner, 0); |
f571dfb1 | 2623 | if (ret) { |
251fc08c MD |
2624 | if (ret == -ENOENT) { |
2625 | fprintf(stderr, "[warning] Empty metadata.\n"); | |
2626 | } | |
f571dfb1 JD |
2627 | goto error; |
2628 | } | |
2629 | ||
2630 | /* | |
2631 | * for each stream, try to open, check magic number, and get the | |
2632 | * stream ID to add to the right location in the stream array. | |
2633 | */ | |
3122e6f0 | 2634 | bt_list_for_each_entry(mmap_info, &mmap_list->head, list) { |
06789ffd | 2635 | ret = ctf_open_mmap_stream_read(td, mmap_info, packet_seek); |
f571dfb1 | 2636 | if (ret) { |
3394d22e | 2637 | fprintf(stderr, "[error] Open file mmap stream error.\n"); |
f571dfb1 JD |
2638 | goto error; |
2639 | } | |
2640 | } | |
f571dfb1 JD |
2641 | return 0; |
2642 | ||
2643 | error: | |
0c880b0a | 2644 | ctf_scanner_free(td->scanner); |
f571dfb1 JD |
2645 | return ret; |
2646 | } | |
2647 | ||
2648 | static | |
1b8455b7 | 2649 | struct bt_trace_descriptor *ctf_open_mmap_trace( |
c150f912 | 2650 | struct bt_mmap_stream_list *mmap_list, |
1cf393f6 | 2651 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, |
20d0dcf9 | 2652 | int whence), |
f571dfb1 JD |
2653 | FILE *metadata_fp) |
2654 | { | |
2655 | struct ctf_trace *td; | |
2656 | int ret; | |
2657 | ||
2658 | if (!metadata_fp) { | |
2659 | fprintf(stderr, "[error] No metadata file pointer associated, " | |
2660 | "required for mmap parsing\n"); | |
2661 | goto error; | |
2662 | } | |
06789ffd MD |
2663 | if (!packet_seek) { |
2664 | fprintf(stderr, "[error] packet_seek function undefined.\n"); | |
f571dfb1 JD |
2665 | goto error; |
2666 | } | |
2667 | td = g_new0(struct ctf_trace, 1); | |
b5a1fa45 | 2668 | td->dirfd = -1; |
06789ffd | 2669 | ret = ctf_open_mmap_trace_read(td, mmap_list, packet_seek, metadata_fp); |
f571dfb1 JD |
2670 | if (ret) |
2671 | goto error_free; | |
2672 | ||
c40a57e5 AB |
2673 | ret = trace_debug_info_create(td); |
2674 | if (ret) { | |
2675 | goto error_free; | |
2676 | } | |
2677 | ||
f571dfb1 JD |
2678 | return &td->parent; |
2679 | ||
2680 | error_free: | |
2681 | g_free(td); | |
2682 | error: | |
2683 | return NULL; | |
2684 | } | |
2685 | ||
0c880b0a MD |
2686 | int ctf_append_trace_metadata(struct bt_trace_descriptor *tdp, |
2687 | FILE *metadata_fp) | |
2688 | { | |
2689 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); | |
2690 | int i, j; | |
2691 | int ret; | |
2692 | ||
2693 | if (!td->scanner) | |
2694 | return -EINVAL; | |
2695 | ret = ctf_trace_metadata_read(td, metadata_fp, td->scanner, 1); | |
2696 | if (ret) | |
2697 | return ret; | |
2698 | /* for each stream_class */ | |
2699 | for (i = 0; i < td->streams->len; i++) { | |
2700 | struct ctf_stream_declaration *stream_class; | |
2701 | ||
2702 | stream_class = g_ptr_array_index(td->streams, i); | |
2703 | if (!stream_class) | |
2704 | continue; | |
2705 | /* for each stream */ | |
2706 | for (j = 0; j < stream_class->streams->len; j++) { | |
2707 | struct ctf_stream_definition *stream; | |
2708 | ||
2709 | stream = g_ptr_array_index(stream_class->streams, j); | |
2710 | if (!stream) | |
2711 | continue; | |
2712 | ret = copy_event_declarations_stream_class_to_stream(td, | |
2713 | stream_class, stream); | |
2714 | if (ret) | |
2715 | return ret; | |
2716 | } | |
2717 | } | |
2718 | return 0; | |
2719 | } | |
2720 | ||
03798a93 | 2721 | static |
1b8455b7 | 2722 | int ctf_convert_index_timestamp(struct bt_trace_descriptor *tdp) |
03798a93 JD |
2723 | { |
2724 | int i, j, k; | |
2725 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); | |
2726 | ||
2727 | /* for each stream_class */ | |
2728 | for (i = 0; i < td->streams->len; i++) { | |
2729 | struct ctf_stream_declaration *stream_class; | |
2730 | ||
2731 | stream_class = g_ptr_array_index(td->streams, i); | |
2732 | if (!stream_class) | |
2733 | continue; | |
2734 | /* for each file_stream */ | |
2735 | for (j = 0; j < stream_class->streams->len; j++) { | |
2736 | struct ctf_stream_definition *stream; | |
2737 | struct ctf_stream_pos *stream_pos; | |
2738 | struct ctf_file_stream *cfs; | |
2739 | ||
2740 | stream = g_ptr_array_index(stream_class->streams, j); | |
2741 | if (!stream) | |
2742 | continue; | |
2743 | cfs = container_of(stream, struct ctf_file_stream, | |
2744 | parent); | |
2745 | stream_pos = &cfs->pos; | |
992e8cc0 | 2746 | if (!stream_pos->packet_index) |
afe9cd4a JD |
2747 | continue; |
2748 | ||
992e8cc0 | 2749 | for (k = 0; k < stream_pos->packet_index->len; k++) { |
03798a93 | 2750 | struct packet_index *index; |
03798a93 | 2751 | |
992e8cc0 | 2752 | index = &g_array_index(stream_pos->packet_index, |
03798a93 | 2753 | struct packet_index, k); |
992e8cc0 | 2754 | index->ts_real.timestamp_begin = |
03798a93 | 2755 | ctf_get_real_timestamp(stream, |
992e8cc0 MD |
2756 | index->ts_cycles.timestamp_begin); |
2757 | index->ts_real.timestamp_end = | |
03798a93 | 2758 | ctf_get_real_timestamp(stream, |
992e8cc0 | 2759 | index->ts_cycles.timestamp_end); |
03798a93 JD |
2760 | } |
2761 | } | |
2762 | } | |
2763 | return 0; | |
2764 | } | |
2765 | ||
0f980a35 | 2766 | static |
f824ae04 | 2767 | int ctf_close_file_stream(struct ctf_file_stream *file_stream) |
0f980a35 | 2768 | { |
f824ae04 MD |
2769 | int ret; |
2770 | ||
2771 | ret = ctf_fini_pos(&file_stream->pos); | |
2772 | if (ret) { | |
2773 | fprintf(stderr, "Error on ctf_fini_pos\n"); | |
2774 | return -1; | |
2775 | } | |
500634be JD |
2776 | if (file_stream->pos.fd >= 0) { |
2777 | ret = close(file_stream->pos.fd); | |
2778 | if (ret) { | |
2779 | perror("Error closing file fd"); | |
2780 | return -1; | |
2781 | } | |
f824ae04 MD |
2782 | } |
2783 | return 0; | |
0f980a35 MD |
2784 | } |
2785 | ||
e9378815 | 2786 | static |
1b8455b7 | 2787 | int ctf_close_trace(struct bt_trace_descriptor *tdp) |
bbefb8dd | 2788 | { |
46322b33 | 2789 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); |
08c82b90 | 2790 | int ret; |
0f980a35 | 2791 | |
46322b33 | 2792 | if (td->streams) { |
08c82b90 MD |
2793 | int i; |
2794 | ||
46322b33 | 2795 | for (i = 0; i < td->streams->len; i++) { |
f380e105 | 2796 | struct ctf_stream_declaration *stream; |
0f980a35 | 2797 | int j; |
e9378815 | 2798 | |
46322b33 | 2799 | stream = g_ptr_array_index(td->streams, i); |
e9378815 MD |
2800 | if (!stream) |
2801 | continue; | |
2d0bea29 | 2802 | for (j = 0; j < stream->streams->len; j++) { |
0f980a35 | 2803 | struct ctf_file_stream *file_stream; |
15d4fe3c JD |
2804 | file_stream = container_of(g_ptr_array_index(stream->streams, j), |
2805 | struct ctf_file_stream, parent); | |
f824ae04 MD |
2806 | ret = ctf_close_file_stream(file_stream); |
2807 | if (ret) | |
2808 | return ret; | |
0f980a35 | 2809 | } |
e003ab50 | 2810 | } |
e003ab50 | 2811 | } |
15d4fe3c | 2812 | ctf_destroy_metadata(td); |
0c880b0a | 2813 | ctf_scanner_free(td->scanner); |
500634be JD |
2814 | if (td->dirfd >= 0) { |
2815 | ret = close(td->dirfd); | |
2816 | if (ret) { | |
2817 | perror("Error closing dirfd"); | |
2818 | return ret; | |
2819 | } | |
f824ae04 | 2820 | } |
500634be JD |
2821 | if (td->dir) { |
2822 | ret = closedir(td->dir); | |
2823 | if (ret) { | |
2824 | perror("Error closedir"); | |
2825 | return ret; | |
2826 | } | |
f824ae04 | 2827 | } |
7237592a | 2828 | free(td->metadata_string); |
c40a57e5 | 2829 | trace_debug_info_destroy(td); |
bbefb8dd | 2830 | g_free(td); |
f824ae04 | 2831 | return 0; |
bbefb8dd MD |
2832 | } |
2833 | ||
98a04903 | 2834 | static |
1b8455b7 | 2835 | void ctf_set_context(struct bt_trace_descriptor *descriptor, |
98a04903 JD |
2836 | struct bt_context *ctx) |
2837 | { | |
2838 | struct ctf_trace *td = container_of(descriptor, struct ctf_trace, | |
2839 | parent); | |
2840 | ||
45807148 | 2841 | td->parent.ctx = ctx; |
98a04903 JD |
2842 | } |
2843 | ||
2844 | static | |
1b8455b7 | 2845 | void ctf_set_handle(struct bt_trace_descriptor *descriptor, |
98a04903 JD |
2846 | struct bt_trace_handle *handle) |
2847 | { | |
2848 | struct ctf_trace *td = container_of(descriptor, struct ctf_trace, | |
2849 | parent); | |
2850 | ||
4d086981 | 2851 | td->parent.handle = handle; |
98a04903 JD |
2852 | } |
2853 | ||
95febab3 | 2854 | static |
7fb21036 | 2855 | void __attribute__((constructor)) ctf_init(void) |
fc93b2bd MD |
2856 | { |
2857 | int ret; | |
2858 | ||
2ea5cc8b | 2859 | ctf_format.name = g_quark_from_string("ctf"); |
fc93b2bd MD |
2860 | ret = bt_register_format(&ctf_format); |
2861 | assert(!ret); | |
2862 | } | |
698f0fe4 | 2863 | |
95febab3 MD |
2864 | static |
2865 | void __attribute__((destructor)) ctf_exit(void) | |
2866 | { | |
2867 | bt_unregister_format(&ctf_format); | |
2868 | } |