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