Python bindings: add has_intersection property to TraceCollection
[babeltrace.git] / converter / babeltrace.c
1 /*
2 * babeltrace.c
3 *
4 * Babeltrace Trace Converter
5 *
6 * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
7 *
8 * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 *
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:
16 *
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
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.
27 */
28
29 #include <babeltrace/babeltrace.h>
30 #include <babeltrace/format.h>
31 #include <babeltrace/context.h>
32 #include <babeltrace/context-internal.h>
33 #include <babeltrace/ctf/types.h>
34 #include <babeltrace/ctf/events.h>
35 /* TODO: fix object model for format-agnostic callbacks */
36 #include <babeltrace/ctf/events-internal.h>
37 #include <babeltrace/ctf/iterator.h>
38 #include <babeltrace/ctf-text/types.h>
39 #include <babeltrace/debuginfo.h>
40
41 #include <babeltrace/iterator.h>
42 #include <popt.h>
43 #include <errno.h>
44 #include <stdlib.h>
45 #include <ctype.h>
46 #include <sys/stat.h>
47 #include <sys/types.h>
48 #include <fcntl.h>
49 #include <unistd.h>
50 #include <inttypes.h>
51 #include <ftw.h>
52 #include <string.h>
53
54 #include <babeltrace/ctf-ir/metadata.h> /* for clocks */
55
56 #define PARTIAL_ERROR_SLEEP 3 /* 3 seconds */
57
58 #define DEFAULT_FILE_ARRAY_SIZE 1
59
60 #define NET_URL_PREFIX "net://"
61 #define NET4_URL_PREFIX "net4://"
62 #define NET6_URL_PREFIX "net6://"
63
64 static char *opt_input_format, *opt_output_format;
65
66 /*
67 * We are not freeing opt_input_paths ipath elements when exiting from
68 * main() for backward compatibility with libpop 0.13, which does not
69 * allocate copies for arguments returned by poptGetArg(), and for
70 * general compatibility with the documented behavior. This is known to
71 * cause a small memory leak with libpop 0.16.
72 */
73 static GPtrArray *opt_input_paths;
74 static char *opt_output_path;
75 static int opt_stream_intersection;
76
77 static struct bt_format *fmt_read;
78
79 static
80 void strlower(char *str)
81 {
82 while (*str) {
83 *str = tolower((int) *str);
84 str++;
85 }
86 }
87
88 enum {
89 OPT_NONE = 0,
90 OPT_OUTPUT_PATH,
91 OPT_INPUT_FORMAT,
92 OPT_OUTPUT_FORMAT,
93 OPT_HELP,
94 OPT_LIST,
95 OPT_VERBOSE,
96 OPT_DEBUG,
97 OPT_NAMES,
98 OPT_FIELDS,
99 OPT_NO_DELTA,
100 OPT_CLOCK_OFFSET,
101 OPT_CLOCK_OFFSET_NS,
102 OPT_CLOCK_CYCLES,
103 OPT_CLOCK_SECONDS,
104 OPT_CLOCK_DATE,
105 OPT_CLOCK_GMT,
106 OPT_CLOCK_FORCE_CORRELATE,
107 OPT_STREAM_INTERSECTION,
108 OPT_DEBUG_INFO_DIR,
109 OPT_DEBUG_INFO_FULL_PATH,
110 OPT_DEBUG_INFO_TARGET_PREFIX,
111 };
112
113 /*
114 * We are _not_ using POPT_ARG_STRING ability to store directly into
115 * variables, because we want to cast the return to non-const, which is
116 * not possible without using poptGetOptArg explicitly. This helps us
117 * controlling memory allocation correctly without making assumptions
118 * about undocumented behaviors. poptGetOptArg is documented as
119 * requiring the returned const char * to be freed by the caller.
120 */
121 static struct poptOption long_options[] = {
122 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
123 { "output", 'w', POPT_ARG_STRING, NULL, OPT_OUTPUT_PATH, NULL, NULL },
124 { "input-format", 'i', POPT_ARG_STRING, NULL, OPT_INPUT_FORMAT, NULL, NULL },
125 { "output-format", 'o', POPT_ARG_STRING, NULL, OPT_OUTPUT_FORMAT, NULL, NULL },
126 { "help", 'h', POPT_ARG_NONE, NULL, OPT_HELP, NULL, NULL },
127 { "list", 'l', POPT_ARG_NONE, NULL, OPT_LIST, NULL, NULL },
128 { "verbose", 'v', POPT_ARG_NONE, NULL, OPT_VERBOSE, NULL, NULL },
129 { "debug", 'd', POPT_ARG_NONE, NULL, OPT_DEBUG, NULL, NULL },
130 { "names", 'n', POPT_ARG_STRING, NULL, OPT_NAMES, NULL, NULL },
131 { "fields", 'f', POPT_ARG_STRING, NULL, OPT_FIELDS, NULL, NULL },
132 { "no-delta", 0, POPT_ARG_NONE, NULL, OPT_NO_DELTA, NULL, NULL },
133 { "clock-offset", 0, POPT_ARG_STRING, NULL, OPT_CLOCK_OFFSET, NULL, NULL },
134 { "clock-offset-ns", 0, POPT_ARG_STRING, NULL, OPT_CLOCK_OFFSET_NS, NULL, NULL },
135 { "clock-cycles", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_CYCLES, NULL, NULL },
136 { "clock-seconds", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_SECONDS, NULL, NULL },
137 { "clock-date", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_DATE, NULL, NULL },
138 { "clock-gmt", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_GMT, NULL, NULL },
139 { "clock-force-correlate", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_FORCE_CORRELATE, NULL, NULL },
140 { "stream-intersection", 0, POPT_ARG_NONE, NULL, OPT_STREAM_INTERSECTION, NULL, NULL },
141 #ifdef ENABLE_DEBUGINFO
142 { "debug-info-dir", 0, POPT_ARG_STRING, NULL, OPT_DEBUG_INFO_DIR, NULL, NULL },
143 { "debug-info-full-path", 0, POPT_ARG_NONE, NULL, OPT_DEBUG_INFO_FULL_PATH, NULL, NULL },
144 { "debug-info-target-prefix", 0, POPT_ARG_STRING, NULL, OPT_DEBUG_INFO_TARGET_PREFIX, NULL, NULL },
145 #endif
146 { NULL, 0, 0, NULL, 0, NULL, NULL },
147 };
148
149 static void list_formats(FILE *fp)
150 {
151 fprintf(fp, "\n");
152 bt_fprintf_format_list(fp);
153 }
154
155 static void usage(FILE *fp)
156 {
157 fprintf(fp, "BabelTrace Trace Viewer and Converter %s\n\n", VERSION);
158 fprintf(fp, "usage : babeltrace [OPTIONS] FILE...\n");
159 fprintf(fp, "\n");
160 fprintf(fp, " FILE Input trace file(s) and/or directory(ies)\n");
161 fprintf(fp, " (space-separated)\n");
162 fprintf(fp, " -w, --output OUTPUT Output trace path (default: stdout)\n");
163 fprintf(fp, "\n");
164 fprintf(fp, " -i, --input-format FORMAT Input trace format (default: ctf)\n");
165 fprintf(fp, " -o, --output-format FORMAT Output trace format (default: text)\n");
166 fprintf(fp, "\n");
167 fprintf(fp, " -h, --help This help message\n");
168 fprintf(fp, " -l, --list List available formats\n");
169 fprintf(fp, " -v, --verbose Verbose mode\n");
170 fprintf(fp, " (or set BABELTRACE_VERBOSE environment variable)\n");
171 fprintf(fp, " -d, --debug Debug mode\n");
172 fprintf(fp, " (or set BABELTRACE_DEBUG environment variable)\n");
173 fprintf(fp, " --no-delta Do not print time delta between consecutive events\n");
174 fprintf(fp, " -n, --names name1<,name2,...> Print field names:\n");
175 fprintf(fp, " (payload OR args OR arg)\n");
176 fprintf(fp, " none, all, scope, header, (context OR ctx)\n");
177 fprintf(fp, " (default: payload,context)\n");
178 fprintf(fp, " -f, --fields name1<,name2,...> Print additional fields:\n");
179 fprintf(fp, " all, trace, trace:hostname, trace:domain,\n");
180 fprintf(fp, " trace:procname, trace:vpid, loglevel, emf, callsite.\n");
181 fprintf(fp, " (default: trace:hostname,trace:procname,trace:vpid)\n");
182 fprintf(fp, " --clock-cycles Timestamp in cycles\n");
183 fprintf(fp, " --clock-offset seconds Clock offset in seconds\n");
184 fprintf(fp, " --clock-offset-ns ns Clock offset in nanoseconds\n");
185 fprintf(fp, " --clock-seconds Print the timestamps as [sec.ns]\n");
186 fprintf(fp, " (default is: [hh:mm:ss.ns])\n");
187 fprintf(fp, " --clock-date Print clock date\n");
188 fprintf(fp, " --clock-gmt Print clock in GMT time zone (default: local time zone)\n");
189 fprintf(fp, " --clock-force-correlate Assume that clocks are inherently correlated\n");
190 fprintf(fp, " across traces.\n");
191 fprintf(fp, " --stream-intersection Only print events when all streams are active.\n");
192 #ifdef ENABLE_DEBUGINFO
193 fprintf(fp, " --debug-info-dir Directory in which to look for debugging information\n");
194 fprintf(fp, " files. (default: /usr/lib/debug/)\n");
195 fprintf(fp, " --debug-info-target-prefix Directory to use as a prefix for executable lookup\n");
196 fprintf(fp, " --debug-info-full-path Show full debug info source and binary paths (if available)\n");
197 #endif
198 list_formats(fp);
199 fprintf(fp, "\n");
200 }
201
202 static int get_names_args(poptContext *pc)
203 {
204 char *str, *strlist, *strctx;
205 int ret = 0;
206
207 opt_payload_field_names = 0;
208 opt_context_field_names = 0;
209 strlist = (char *) poptGetOptArg(*pc);
210 if (!strlist) {
211 return -EINVAL;
212 }
213 str = strtok_r(strlist, ",", &strctx);
214 do {
215 if (!strcmp(str, "all"))
216 opt_all_field_names = 1;
217 else if (!strcmp(str, "scope"))
218 opt_scope_field_names = 1;
219 else if (!strcmp(str, "context") || !strcmp(str, "ctx"))
220 opt_context_field_names = 1;
221 else if (!strcmp(str, "header"))
222 opt_header_field_names = 1;
223 else if (!strcmp(str, "payload") || !strcmp(str, "args") || !strcmp(str, "arg"))
224 opt_payload_field_names = 1;
225 else if (!strcmp(str, "none")) {
226 opt_all_field_names = 0;
227 opt_scope_field_names = 0;
228 opt_context_field_names = 0;
229 opt_header_field_names = 0;
230 opt_payload_field_names = 0;
231 } else {
232 fprintf(stderr, "[error] unknown field name type %s\n", str);
233 ret = -EINVAL;
234 goto end;
235 }
236 } while ((str = strtok_r(NULL, ",", &strctx)));
237 end:
238 free(strlist);
239 return ret;
240 }
241
242 static int get_fields_args(poptContext *pc)
243 {
244 char *str, *strlist, *strctx;
245 int ret = 0;
246
247 strlist = (char *) poptGetOptArg(*pc);
248 if (!strlist) {
249 return -EINVAL;
250 }
251 str = strtok_r(strlist, ",", &strctx);
252 do {
253 opt_trace_default_fields = 0;
254 if (!strcmp(str, "all"))
255 opt_all_fields = 1;
256 else if (!strcmp(str, "trace"))
257 opt_trace_field = 1;
258 else if (!strcmp(str, "trace:hostname"))
259 opt_trace_hostname_field = 1;
260 else if (!strcmp(str, "trace:domain"))
261 opt_trace_domain_field = 1;
262 else if (!strcmp(str, "trace:procname"))
263 opt_trace_procname_field = 1;
264 else if (!strcmp(str, "trace:vpid"))
265 opt_trace_vpid_field = 1;
266 else if (!strcmp(str, "loglevel"))
267 opt_loglevel_field = 1;
268 else if (!strcmp(str, "emf"))
269 opt_emf_field = 1;
270 else if (!strcmp(str, "callsite"))
271 opt_callsite_field = 1;
272 else {
273 fprintf(stderr, "[error] unknown field type %s\n", str);
274 ret = -EINVAL;
275 goto end;
276 }
277 } while ((str = strtok_r(NULL, ",", &strctx)));
278 end:
279 free(strlist);
280 return ret;
281 }
282
283 /*
284 * Return 0 if caller should continue, < 0 if caller should return
285 * error, > 0 if caller should exit without reporting error.
286 */
287 static int parse_options(int argc, char **argv)
288 {
289 poptContext pc;
290 int opt, ret = 0;
291 const char *ipath;
292
293 if (argc == 1) {
294 usage(stdout);
295 return 1; /* exit cleanly */
296 }
297
298 pc = poptGetContext(NULL, argc, (const char **) argv, long_options, 0);
299 poptReadDefaultConfig(pc, 0);
300
301 /* set default */
302 opt_context_field_names = 1;
303 opt_payload_field_names = 1;
304
305 while ((opt = poptGetNextOpt(pc)) != -1) {
306 switch (opt) {
307 case OPT_OUTPUT_PATH:
308 opt_output_path = (char *) poptGetOptArg(pc);
309 if (!opt_output_path) {
310 ret = -EINVAL;
311 goto end;
312 }
313 break;
314 case OPT_INPUT_FORMAT:
315 opt_input_format = (char *) poptGetOptArg(pc);
316 if (!opt_input_format) {
317 ret = -EINVAL;
318 goto end;
319 }
320 break;
321 case OPT_OUTPUT_FORMAT:
322 opt_output_format = (char *) poptGetOptArg(pc);
323 if (!opt_output_format) {
324 ret = -EINVAL;
325 goto end;
326 }
327 break;
328 case OPT_HELP:
329 usage(stdout);
330 ret = 1; /* exit cleanly */
331 goto end;
332 case OPT_LIST:
333 list_formats(stdout);
334 ret = 1;
335 goto end;
336 case OPT_VERBOSE:
337 babeltrace_verbose = 1;
338 break;
339 case OPT_NAMES:
340 if (get_names_args(&pc)) {
341 ret = -EINVAL;
342 goto end;
343 }
344 break;
345 case OPT_FIELDS:
346 if (get_fields_args(&pc)) {
347 ret = -EINVAL;
348 goto end;
349 }
350 break;
351 case OPT_DEBUG:
352 babeltrace_debug = 1;
353 break;
354 case OPT_NO_DELTA:
355 opt_delta_field = 0;
356 break;
357 case OPT_CLOCK_CYCLES:
358 opt_clock_cycles = 1;
359 break;
360 case OPT_CLOCK_OFFSET:
361 {
362 char *str;
363 char *endptr;
364
365 str = (char *) poptGetOptArg(pc);
366 if (!str) {
367 fprintf(stderr, "[error] Missing --clock-offset argument\n");
368 ret = -EINVAL;
369 goto end;
370 }
371 errno = 0;
372 opt_clock_offset = strtoull(str, &endptr, 0);
373 if (*endptr != '\0' || str == endptr || errno != 0) {
374 fprintf(stderr, "[error] Incorrect --clock-offset argument: %s\n", str);
375 ret = -EINVAL;
376 free(str);
377 goto end;
378 }
379 free(str);
380 break;
381 }
382 case OPT_CLOCK_SECONDS:
383 opt_clock_seconds = 1;
384 break;
385 case OPT_CLOCK_OFFSET_NS:
386 {
387 char *str;
388 char *endptr;
389
390 str = (char *) poptGetOptArg(pc);
391 if (!str) {
392 fprintf(stderr, "[error] Missing --clock-offset-ns argument\n");
393 ret = -EINVAL;
394 goto end;
395 }
396 errno = 0;
397 opt_clock_offset_ns = strtoull(str, &endptr, 0);
398 if (*endptr != '\0' || str == endptr || errno != 0) {
399 fprintf(stderr, "[error] Incorrect --clock-offset-ns argument: %s\n", str);
400 ret = -EINVAL;
401 free(str);
402 goto end;
403 }
404 free(str);
405 break;
406 }
407
408 case OPT_CLOCK_DATE:
409 opt_clock_date = 1;
410 break;
411 case OPT_CLOCK_GMT:
412 opt_clock_gmt = 1;
413 break;
414 case OPT_CLOCK_FORCE_CORRELATE:
415 opt_clock_force_correlate = 1;
416 break;
417 case OPT_STREAM_INTERSECTION:
418 opt_stream_intersection = 1;
419 break;
420 case OPT_DEBUG_INFO_DIR:
421 opt_debug_info_dir = (char *) poptGetOptArg(pc);
422 if (!opt_debug_info_dir) {
423 ret = -EINVAL;
424 goto end;
425 }
426 break;
427 case OPT_DEBUG_INFO_FULL_PATH:
428 opt_debug_info_full_path = 1;
429 break;
430 case OPT_DEBUG_INFO_TARGET_PREFIX:
431 opt_debug_info_target_prefix = (char *) poptGetOptArg(pc);
432 if (!opt_debug_info_target_prefix) {
433 ret = -EINVAL;
434 goto end;
435 }
436 break;
437 default:
438 ret = -EINVAL;
439 goto end;
440 }
441 }
442
443 do {
444 ipath = poptGetArg(pc);
445 if (ipath)
446 g_ptr_array_add(opt_input_paths, (gpointer) ipath);
447 } while (ipath);
448 if (opt_input_paths->len == 0) {
449 ret = -EINVAL;
450 goto end;
451 }
452
453 end:
454 if (pc) {
455 poptFreeContext(pc);
456 }
457 return ret;
458 }
459
460 static GPtrArray *traversed_paths = 0;
461
462 /*
463 * traverse_trace_dir() is the callback function for File Tree Walk (nftw).
464 * it receives the path of the current entry (file, dir, link..etc) with
465 * a flag to indicate the type of the entry.
466 * if the entry being visited is a directory and contains a metadata file,
467 * then add the path to a global list to be processed later in
468 * add_traces_recursive.
469 */
470 static int traverse_trace_dir(const char *fpath, const struct stat *sb,
471 int tflag, struct FTW *ftwbuf)
472 {
473 int dirfd, metafd;
474 int closeret;
475
476 if (tflag != FTW_D)
477 return 0;
478
479 dirfd = open(fpath, 0);
480 if (dirfd < 0) {
481 fprintf(stderr, "[error] [Context] Unable to open trace "
482 "directory file descriptor.\n");
483 return 0; /* partial error */
484 }
485 metafd = openat(dirfd, "metadata", O_RDONLY);
486 if (metafd < 0) {
487 closeret = close(dirfd);
488 if (closeret < 0) {
489 perror("close");
490 return -1;
491 }
492 /* No meta data, just return */
493 return 0;
494 } else {
495 int err_close = 0;
496
497 closeret = close(metafd);
498 if (closeret < 0) {
499 perror("close");
500 err_close = 1;
501 }
502 closeret = close(dirfd);
503 if (closeret < 0) {
504 perror("close");
505 err_close = 1;
506 }
507 if (err_close) {
508 return -1;
509 }
510
511 /* Add path to the global list */
512 if (traversed_paths == NULL) {
513 fprintf(stderr, "[error] [Context] Invalid open path array.\n");
514 return -1;
515 }
516 g_ptr_array_add(traversed_paths, g_string_new(fpath));
517 }
518
519 return 0;
520 }
521
522 /*
523 * bt_context_add_traces_recursive: Open a trace recursively
524 *
525 * Find each trace present in the subdirectory starting from the given
526 * path, and add them to the context. The packet_seek parameter can be
527 * NULL: this specify to use the default format packet_seek.
528 *
529 * Return: 0 on success, < 0 on failure, > 0 on partial failure.
530 * Unable to open toplevel: failure.
531 * Unable to open some subdirectory or file: warn and continue (partial
532 * failure);
533 */
534 int bt_context_add_traces_recursive(struct bt_context *ctx, const char *path,
535 const char *format_str,
536 void (*packet_seek)(struct bt_stream_pos *pos,
537 size_t offset, int whence))
538 {
539 int ret = 0, trace_ids = 0;
540
541 if ((strncmp(path, NET4_URL_PREFIX, sizeof(NET4_URL_PREFIX) - 1)) == 0 ||
542 (strncmp(path, NET6_URL_PREFIX, sizeof(NET6_URL_PREFIX) - 1)) == 0 ||
543 (strncmp(path, NET_URL_PREFIX, sizeof(NET_URL_PREFIX) - 1)) == 0) {
544 ret = bt_context_add_trace(ctx,
545 path, format_str, packet_seek, NULL, NULL);
546 if (ret < 0) {
547 fprintf(stderr, "[warning] [Context] cannot open trace \"%s\" "
548 "for reading.\n", path);
549 }
550 return ret;
551 }
552 /* Should lock traversed_paths mutex here if used in multithread */
553
554 traversed_paths = g_ptr_array_new();
555 ret = nftw(path, traverse_trace_dir, 10, 0);
556
557 /* Process the array if ntfw did not return a fatal error */
558 if (ret >= 0) {
559 int i;
560
561 for (i = 0; i < traversed_paths->len; i++) {
562 GString *trace_path = g_ptr_array_index(traversed_paths,
563 i);
564 int trace_id = bt_context_add_trace(ctx,
565 trace_path->str,
566 format_str,
567 packet_seek,
568 NULL,
569 NULL);
570 if (trace_id < 0) {
571 fprintf(stderr, "[warning] [Context] cannot open trace \"%s\" from %s "
572 "for reading.\n", trace_path->str, path);
573 /* Allow to skip erroneous traces. */
574 ret = 1; /* partial error */
575 } else {
576 trace_ids++;
577 }
578 g_string_free(trace_path, TRUE);
579 }
580 }
581
582 g_ptr_array_free(traversed_paths, TRUE);
583 traversed_paths = NULL;
584
585 /* Should unlock traversed paths mutex here if used in multithread */
586
587 /*
588 * Return an error if no trace can be opened.
589 */
590 if (trace_ids == 0) {
591 fprintf(stderr, "[error] Cannot open any trace for reading.\n\n");
592 ret = -ENOENT; /* failure */
593 }
594 return ret;
595 }
596
597 static
598 int trace_pre_handler(struct bt_trace_descriptor *td_write,
599 struct bt_context *ctx)
600 {
601 struct ctf_text_stream_pos *sout;
602 struct trace_collection *tc;
603 int ret, i;
604
605 sout = container_of(td_write, struct ctf_text_stream_pos,
606 trace_descriptor);
607
608 if (!sout->parent.pre_trace_cb)
609 return 0;
610
611 tc = ctx->tc;
612 for (i = 0; i < tc->array->len; i++) {
613 struct bt_trace_descriptor *td =
614 g_ptr_array_index(tc->array, i);
615
616 ret = sout->parent.pre_trace_cb(&sout->parent, td);
617 if (ret) {
618 fprintf(stderr, "[error] Writing to trace pre handler failed.\n");
619 goto end;
620 }
621 }
622 ret = 0;
623 end:
624 return ret;
625 }
626
627 static
628 int trace_post_handler(struct bt_trace_descriptor *td_write,
629 struct bt_context *ctx)
630 {
631 struct ctf_text_stream_pos *sout;
632 struct trace_collection *tc;
633 int ret, i;
634
635 sout = container_of(td_write, struct ctf_text_stream_pos,
636 trace_descriptor);
637
638 if (!sout->parent.post_trace_cb)
639 return 0;
640
641 tc = ctx->tc;
642 for (i = 0; i < tc->array->len; i++) {
643 struct bt_trace_descriptor *td =
644 g_ptr_array_index(tc->array, i);
645
646 ret = sout->parent.post_trace_cb(&sout->parent, td);
647 if (ret) {
648 fprintf(stderr, "[error] Writing to trace post handler failed.\n");
649 goto end;
650 }
651 }
652 ret = 0;
653 end:
654 return ret;
655 }
656
657 static
658 int convert_trace(struct bt_trace_descriptor *td_write,
659 struct bt_context *ctx)
660 {
661 struct bt_ctf_iter *iter;
662 struct ctf_text_stream_pos *sout;
663 struct bt_iter_pos *begin_pos = NULL, *end_pos = NULL;
664 struct bt_ctf_event *ctf_event;
665 int ret;
666
667 sout = container_of(td_write, struct ctf_text_stream_pos,
668 trace_descriptor);
669
670 if (!sout->parent.event_cb) {
671 return 0;
672 }
673
674 if (opt_stream_intersection) {
675 iter = bt_ctf_iter_create_intersect(ctx, &begin_pos, &end_pos);
676 } else {
677 begin_pos = bt_iter_create_time_pos(NULL, 0);
678 begin_pos->type = BT_SEEK_BEGIN;
679 iter = bt_ctf_iter_create(ctx, begin_pos, NULL);
680 }
681 if (!iter) {
682 ret = -1;
683 goto error_iter;
684 }
685 while ((ctf_event = bt_ctf_iter_read_event(iter))) {
686 ret = sout->parent.event_cb(&sout->parent, ctf_event->parent->stream);
687 if (ret) {
688 fprintf(stderr, "[error] Writing event failed.\n");
689 goto end;
690 }
691 ret = bt_iter_next(bt_ctf_get_iter(iter));
692 if (ret < 0) {
693 goto end;
694 }
695 }
696 ret = 0;
697
698 end:
699 bt_ctf_iter_destroy(iter);
700 error_iter:
701 bt_iter_free_pos(begin_pos);
702 bt_iter_free_pos(end_pos);
703 return ret;
704 }
705
706 int main(int argc, char **argv)
707 {
708 int ret, partial_error = 0, open_success = 0;
709 struct bt_format *fmt_write;
710 struct bt_trace_descriptor *td_write;
711 struct bt_context *ctx;
712 int i;
713
714 opt_input_paths = g_ptr_array_new();
715
716 ret = parse_options(argc, argv);
717 if (ret < 0) {
718 fprintf(stderr, "Error parsing options.\n\n");
719 usage(stderr);
720 g_ptr_array_free(opt_input_paths, TRUE);
721 exit(EXIT_FAILURE);
722 } else if (ret > 0) {
723 g_ptr_array_free(opt_input_paths, TRUE);
724 exit(EXIT_SUCCESS);
725 }
726 printf_verbose("Verbose mode active.\n");
727 printf_debug("Debug mode active.\n");
728
729 if (opt_input_format)
730 strlower(opt_input_format);
731 if (opt_output_format)
732 strlower(opt_output_format);
733
734 printf_verbose("Converting from directory(ies):\n");
735 for (i = 0; i < opt_input_paths->len; i++) {
736 const char *ipath = g_ptr_array_index(opt_input_paths, i);
737 printf_verbose(" %s\n", ipath);
738 }
739 printf_verbose("Converting from format: %s\n",
740 opt_input_format ? : "ctf <default>");
741 printf_verbose("Converting to target: %s\n",
742 opt_output_path ? : "<stdout>");
743 printf_verbose("Converting to format: %s\n",
744 opt_output_format ? : "text <default>");
745
746 if (!opt_input_format) {
747 opt_input_format = strdup("ctf");
748 if (!opt_input_format) {
749 partial_error = 1;
750 goto end;
751 }
752 }
753 if (!opt_output_format) {
754 opt_output_format = strdup("text");
755 if (!opt_output_format) {
756 partial_error = 1;
757 goto end;
758 }
759 }
760 fmt_read = bt_lookup_format(g_quark_from_static_string(opt_input_format));
761 if (!fmt_read) {
762 fprintf(stderr, "[error] Format \"%s\" is not supported.\n\n",
763 opt_input_format);
764 partial_error = 1;
765 goto end;
766 }
767 fmt_write = bt_lookup_format(g_quark_from_static_string(opt_output_format));
768 if (!fmt_write) {
769 fprintf(stderr, "[error] format \"%s\" is not supported.\n\n",
770 opt_output_format);
771 partial_error = 1;
772 goto end;
773 }
774
775 ctx = bt_context_create();
776 if (!ctx) {
777 goto error_td_read;
778 }
779
780 for (i = 0; i < opt_input_paths->len; i++) {
781 const char *ipath = g_ptr_array_index(opt_input_paths, i);
782 ret = bt_context_add_traces_recursive(ctx, ipath,
783 opt_input_format, NULL);
784 if (ret < 0) {
785 fprintf(stderr, "[error] opening trace \"%s\" for reading.\n\n",
786 ipath);
787 } else if (ret > 0) {
788 fprintf(stderr, "[warning] errors occurred when opening trace \"%s\" for reading, continuing anyway.\n\n",
789 ipath);
790 open_success = 1; /* some traces were OK */
791 partial_error = 1;
792 } else {
793 open_success = 1; /* all traces were OK */
794 }
795 }
796 if (!open_success) {
797 fprintf(stderr, "[error] none of the specified trace paths could be opened.\n\n");
798 goto error_td_read;
799 }
800
801 td_write = fmt_write->open_trace(opt_output_path, O_RDWR, NULL, NULL);
802 if (!td_write) {
803 fprintf(stderr, "Error opening trace \"%s\" for writing.\n\n",
804 opt_output_path ? : "<none>");
805 goto error_td_write;
806 }
807
808 /*
809 * Errors happened when opening traces, but we continue anyway.
810 * sleep to let user see the stderr output before stdout.
811 */
812 if (partial_error)
813 sleep(PARTIAL_ERROR_SLEEP);
814
815 ret = trace_pre_handler(td_write, ctx);
816 if (ret) {
817 fprintf(stderr, "Error in trace pre handle.\n\n");
818 goto error_copy_trace;
819 }
820
821 /* For now, we support only CTF iterators */
822 if (fmt_read->name == g_quark_from_static_string("ctf")) {
823 ret = convert_trace(td_write, ctx);
824 if (ret) {
825 fprintf(stderr, "Error printing trace.\n\n");
826 goto error_copy_trace;
827 }
828 }
829
830 ret = trace_post_handler(td_write, ctx);
831 if (ret) {
832 fprintf(stderr, "Error in trace post handle.\n\n");
833 goto error_copy_trace;
834 }
835
836 fmt_write->close_trace(td_write);
837
838 bt_context_put(ctx);
839 printf_verbose("finished converting. Output written to:\n%s\n",
840 opt_output_path ? : "<stdout>");
841 goto end;
842
843 /* Error handling */
844 error_copy_trace:
845 fmt_write->close_trace(td_write);
846 error_td_write:
847 bt_context_put(ctx);
848 error_td_read:
849 partial_error = 1;
850
851 /* teardown and exit */
852 end:
853 free(opt_input_format);
854 free(opt_output_format);
855 free(opt_output_path);
856 free(opt_debug_info_dir);
857 free(opt_debug_info_target_prefix);
858 g_ptr_array_free(opt_input_paths, TRUE);
859 if (partial_error)
860 exit(EXIT_FAILURE);
861 else
862 exit(EXIT_SUCCESS);
863 }
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