| | 1 | /* |
| | 2 | * This file contains the ini and command liner parser main. |
| | 3 | */ |
| | 4 | #include <stdio.h> |
| | 5 | #include <stdlib.h> |
| | 6 | #include <unistd.h> |
| | 7 | #include <ctype.h> |
| | 8 | #include <string.h> |
| | 9 | #include <errno.h> |
| | 10 | #include <limits.h> |
| | 11 | #include <stdlib.h> |
| | 12 | #include <math.h> |
| | 13 | |
| | 14 | #include "parse.h" |
| | 15 | #include "debug.h" |
| | 16 | #include "options.h" |
| | 17 | |
| | 18 | static struct fio_option *fio_options; |
| | 19 | extern unsigned int fio_get_kb_base(void *); |
| | 20 | |
| | 21 | static int vp_cmp(const void *p1, const void *p2) |
| | 22 | { |
| | 23 | const struct value_pair *vp1 = p1; |
| | 24 | const struct value_pair *vp2 = p2; |
| | 25 | |
| | 26 | return strlen(vp2->ival) - strlen(vp1->ival); |
| | 27 | } |
| | 28 | |
| | 29 | static int posval_sort(struct fio_option *o, struct value_pair *vpmap) |
| | 30 | { |
| | 31 | const struct value_pair *vp; |
| | 32 | int entries; |
| | 33 | |
| | 34 | if (!o->posval[0].ival) |
| | 35 | return 0; |
| | 36 | |
| | 37 | memset(vpmap, 0, PARSE_MAX_VP * sizeof(struct value_pair)); |
| | 38 | |
| | 39 | for (entries = 0; entries < PARSE_MAX_VP; entries++) { |
| | 40 | vp = &o->posval[entries]; |
| | 41 | if (!vp->ival || vp->ival[0] == '\0') |
| | 42 | break; |
| | 43 | |
| | 44 | memcpy(&vpmap[entries], vp, sizeof(*vp)); |
| | 45 | } |
| | 46 | |
| | 47 | qsort(vpmap, entries, sizeof(struct value_pair), vp_cmp); |
| | 48 | return 1; |
| | 49 | } |
| | 50 | |
| | 51 | static void show_option_range(struct fio_option *o, FILE *out) |
| | 52 | { |
| | 53 | if (o->type == FIO_OPT_FLOAT_LIST){ |
| | 54 | if (isnan(o->minfp) && isnan(o->maxfp)) |
| | 55 | return; |
| | 56 | |
| | 57 | fprintf(out, "%20s: min=%f", "range", o->minfp); |
| | 58 | if (!isnan(o->maxfp)) |
| | 59 | fprintf(out, ", max=%f", o->maxfp); |
| | 60 | fprintf(out, "\n"); |
| | 61 | } else { |
| | 62 | if (!o->minval && !o->maxval) |
| | 63 | return; |
| | 64 | |
| | 65 | fprintf(out, "%20s: min=%d", "range", o->minval); |
| | 66 | if (o->maxval) |
| | 67 | fprintf(out, ", max=%d", o->maxval); |
| | 68 | fprintf(out, "\n"); |
| | 69 | } |
| | 70 | } |
| | 71 | |
| | 72 | static void show_option_values(struct fio_option *o) |
| | 73 | { |
| | 74 | int i; |
| | 75 | |
| | 76 | for (i = 0; i < PARSE_MAX_VP; i++) { |
| | 77 | const struct value_pair *vp = &o->posval[i]; |
| | 78 | |
| | 79 | if (!vp->ival) |
| | 80 | continue; |
| | 81 | |
| | 82 | printf("%20s: %-10s", i == 0 ? "valid values" : "", vp->ival); |
| | 83 | if (vp->help) |
| | 84 | printf(" %s", vp->help); |
| | 85 | printf("\n"); |
| | 86 | } |
| | 87 | |
| | 88 | if (i) |
| | 89 | printf("\n"); |
| | 90 | } |
| | 91 | |
| | 92 | static void show_option_help(struct fio_option *o, FILE *out) |
| | 93 | { |
| | 94 | const char *typehelp[] = { |
| | 95 | "invalid", |
| | 96 | "string (opt=bla)", |
| | 97 | "string (opt=bla)", |
| | 98 | "string with possible k/m/g postfix (opt=4k)", |
| | 99 | "string with time postfix (opt=10s)", |
| | 100 | "string (opt=bla)", |
| | 101 | "string with dual range (opt=1k-4k,4k-8k)", |
| | 102 | "integer value (opt=100)", |
| | 103 | "boolean value (opt=1)", |
| | 104 | "list of floating point values separated by ':' (opt=5.9:7.8)", |
| | 105 | "no argument (opt)", |
| | 106 | "deprecated", |
| | 107 | }; |
| | 108 | |
| | 109 | if (o->alias) |
| | 110 | fprintf(out, "%20s: %s\n", "alias", o->alias); |
| | 111 | |
| | 112 | fprintf(out, "%20s: %s\n", "type", typehelp[o->type]); |
| | 113 | fprintf(out, "%20s: %s\n", "default", o->def ? o->def : "no default"); |
| | 114 | if (o->prof_name) |
| | 115 | fprintf(out, "%20s: only for profile '%s'\n", "valid", o->prof_name); |
| | 116 | show_option_range(o, stdout); |
| | 117 | show_option_values(o); |
| | 118 | } |
| | 119 | |
| | 120 | static unsigned long get_mult_time(char c) |
| | 121 | { |
| | 122 | switch (c) { |
| | 123 | case 'm': |
| | 124 | case 'M': |
| | 125 | return 60; |
| | 126 | case 'h': |
| | 127 | case 'H': |
| | 128 | return 60 * 60; |
| | 129 | case 'd': |
| | 130 | case 'D': |
| | 131 | return 24 * 60 * 60; |
| | 132 | default: |
| | 133 | return 1; |
| | 134 | } |
| | 135 | } |
| | 136 | |
| | 137 | static unsigned long long __get_mult_bytes(const char *p, void *data, |
| | 138 | int *percent) |
| | 139 | { |
| | 140 | unsigned int kb_base = fio_get_kb_base(data); |
| | 141 | unsigned long long ret = 1; |
| | 142 | unsigned int i, pow = 0, mult = kb_base; |
| | 143 | char *c; |
| | 144 | |
| | 145 | if (!p) |
| | 146 | return 1; |
| | 147 | |
| | 148 | c = strdup(p); |
| | 149 | |
| | 150 | for (i = 0; i < strlen(c); i++) |
| | 151 | c[i] = tolower(c[i]); |
| | 152 | |
| | 153 | if (!strcmp("pib", c)) { |
| | 154 | pow = 5; |
| | 155 | mult = 1000; |
| | 156 | } else if (!strcmp("tib", c)) { |
| | 157 | pow = 4; |
| | 158 | mult = 1000; |
| | 159 | } else if (!strcmp("gib", c)) { |
| | 160 | pow = 3; |
| | 161 | mult = 1000; |
| | 162 | } else if (!strcmp("mib", c)) { |
| | 163 | pow = 2; |
| | 164 | mult = 1000; |
| | 165 | } else if (!strcmp("kib", c)) { |
| | 166 | pow = 1; |
| | 167 | mult = 1000; |
| | 168 | } else if (!strcmp("p", c) || !strcmp("pb", c)) |
| | 169 | pow = 5; |
| | 170 | else if (!strcmp("t", c) || !strcmp("tb", c)) |
| | 171 | pow = 4; |
| | 172 | else if (!strcmp("g", c) || !strcmp("gb", c)) |
| | 173 | pow = 3; |
| | 174 | else if (!strcmp("m", c) || !strcmp("mb", c)) |
| | 175 | pow = 2; |
| | 176 | else if (!strcmp("k", c) || !strcmp("kb", c)) |
| | 177 | pow = 1; |
| | 178 | else if (!strcmp("%", c)) { |
| | 179 | *percent = 1; |
| | 180 | return ret; |
| | 181 | } |
| | 182 | |
| | 183 | while (pow--) |
| | 184 | ret *= (unsigned long long) mult; |
| | 185 | |
| | 186 | free(c); |
| | 187 | return ret; |
| | 188 | } |
| | 189 | |
| | 190 | static unsigned long long get_mult_bytes(const char *str, int len, void *data, |
| | 191 | int *percent) |
| | 192 | { |
| | 193 | const char *p = str; |
| | 194 | |
| | 195 | if (len < 2) |
| | 196 | return __get_mult_bytes(str, data, percent); |
| | 197 | |
| | 198 | /* |
| | 199 | * Go forward until we hit a non-digit, or +/- sign |
| | 200 | */ |
| | 201 | while ((p - str) <= len) { |
| | 202 | if (!isdigit((int) *p) && (*p != '+') && (*p != '-')) |
| | 203 | break; |
| | 204 | p++; |
| | 205 | } |
| | 206 | |
| | 207 | if (!isalpha((int) *p) && (*p != '%')) |
| | 208 | p = NULL; |
| | 209 | |
| | 210 | return __get_mult_bytes(p, data, percent); |
| | 211 | } |
| | 212 | |
| | 213 | /* |
| | 214 | * Convert string into a floating number. Return 1 for success and 0 otherwise. |
| | 215 | */ |
| | 216 | int str_to_float(const char *str, double *val) |
| | 217 | { |
| | 218 | return (1 == sscanf(str, "%lf", val)); |
| | 219 | } |
| | 220 | |
| | 221 | /* |
| | 222 | * convert string into decimal value, noting any size suffix |
| | 223 | */ |
| | 224 | int str_to_decimal(const char *str, long long *val, int kilo, void *data) |
| | 225 | { |
| | 226 | int len, base; |
| | 227 | |
| | 228 | len = strlen(str); |
| | 229 | if (!len) |
| | 230 | return 1; |
| | 231 | |
| | 232 | if (strstr(str, "0x") || strstr(str, "0X")) |
| | 233 | base = 16; |
| | 234 | else |
| | 235 | base = 10; |
| | 236 | |
| | 237 | *val = strtoll(str, NULL, base); |
| | 238 | if (*val == LONG_MAX && errno == ERANGE) |
| | 239 | return 1; |
| | 240 | |
| | 241 | if (kilo) { |
| | 242 | unsigned long long mult; |
| | 243 | int perc = 0; |
| | 244 | |
| | 245 | mult = get_mult_bytes(str, len, data, &perc); |
| | 246 | if (perc) |
| | 247 | *val = -1ULL - *val; |
| | 248 | else |
| | 249 | *val *= mult; |
| | 250 | } else |
| | 251 | *val *= get_mult_time(str[len - 1]); |
| | 252 | |
| | 253 | return 0; |
| | 254 | } |
| | 255 | |
| | 256 | static int check_str_bytes(const char *p, long long *val, void *data) |
| | 257 | { |
| | 258 | return str_to_decimal(p, val, 1, data); |
| | 259 | } |
| | 260 | |
| | 261 | static int check_str_time(const char *p, long long *val) |
| | 262 | { |
| | 263 | return str_to_decimal(p, val, 0, NULL); |
| | 264 | } |
| | 265 | |
| | 266 | void strip_blank_front(char **p) |
| | 267 | { |
| | 268 | char *s = *p; |
| | 269 | |
| | 270 | while (isspace((int) *s)) |
| | 271 | s++; |
| | 272 | |
| | 273 | *p = s; |
| | 274 | } |
| | 275 | |
| | 276 | void strip_blank_end(char *p) |
| | 277 | { |
| | 278 | char *start = p, *s; |
| | 279 | |
| | 280 | s = strchr(p, ';'); |
| | 281 | if (s) |
| | 282 | *s = '\0'; |
| | 283 | s = strchr(p, '#'); |
| | 284 | if (s) |
| | 285 | *s = '\0'; |
| | 286 | if (s) |
| | 287 | p = s; |
| | 288 | |
| | 289 | s = p + strlen(p); |
| | 290 | while ((isspace((int) *s) || iscntrl((int) *s)) && (s > start)) |
| | 291 | s--; |
| | 292 | |
| | 293 | *(s + 1) = '\0'; |
| | 294 | } |
| | 295 | |
| | 296 | static int check_range_bytes(const char *str, long *val, void *data) |
| | 297 | { |
| | 298 | long long __val; |
| | 299 | |
| | 300 | if (!str_to_decimal(str, &__val, 1, data)) { |
| | 301 | *val = __val; |
| | 302 | return 0; |
| | 303 | } |
| | 304 | |
| | 305 | return 1; |
| | 306 | } |
| | 307 | |
| | 308 | static int check_int(const char *p, int *val) |
| | 309 | { |
| | 310 | if (!strlen(p)) |
| | 311 | return 1; |
| | 312 | if (strstr(p, "0x") || strstr(p, "0X")) { |
| | 313 | if (sscanf(p, "%x", val) == 1) |
| | 314 | return 0; |
| | 315 | } else { |
| | 316 | if (sscanf(p, "%u", val) == 1) |
| | 317 | return 0; |
| | 318 | } |
| | 319 | |
| | 320 | return 1; |
| | 321 | } |
| | 322 | |
| | 323 | static int opt_len(const char *str) |
| | 324 | { |
| | 325 | char *postfix; |
| | 326 | |
| | 327 | postfix = strchr(str, ':'); |
| | 328 | if (!postfix) |
| | 329 | return strlen(str); |
| | 330 | |
| | 331 | return (int)(postfix - str); |
| | 332 | } |
| | 333 | |
| | 334 | #define val_store(ptr, val, off, or, data) \ |
| | 335 | do { \ |
| | 336 | ptr = td_var((data), (off)); \ |
| | 337 | if ((or)) \ |
| | 338 | *ptr |= (val); \ |
| | 339 | else \ |
| | 340 | *ptr = (val); \ |
| | 341 | } while (0) |
| | 342 | |
| | 343 | static int __handle_option(struct fio_option *o, const char *ptr, void *data, |
| | 344 | int first, int more, int curr) |
| | 345 | { |
| | 346 | int il, *ilp; |
| | 347 | double* flp; |
| | 348 | long long ull, *ullp; |
| | 349 | long ul1, ul2; |
| | 350 | double uf; |
| | 351 | char **cp; |
| | 352 | int ret = 0, is_time = 0; |
| | 353 | const struct value_pair *vp; |
| | 354 | struct value_pair posval[PARSE_MAX_VP]; |
| | 355 | int i, all_skipped = 1; |
| | 356 | |
| | 357 | dprint(FD_PARSE, "__handle_option=%s, type=%d, ptr=%s\n", o->name, |
| | 358 | o->type, ptr); |
| | 359 | |
| | 360 | if (!ptr && o->type != FIO_OPT_STR_SET && o->type != FIO_OPT_STR) { |
| | 361 | fprintf(stderr, "Option %s requires an argument\n", o->name); |
| | 362 | return 1; |
| | 363 | } |
| | 364 | |
| | 365 | switch (o->type) { |
| | 366 | case FIO_OPT_STR: |
| | 367 | case FIO_OPT_STR_MULTI: { |
| | 368 | fio_opt_str_fn *fn = o->cb; |
| | 369 | |
| | 370 | posval_sort(o, posval); |
| | 371 | |
| | 372 | ret = 1; |
| | 373 | for (i = 0; i < PARSE_MAX_VP; i++) { |
| | 374 | vp = &posval[i]; |
| | 375 | if (!vp->ival || vp->ival[0] == '\0') |
| | 376 | continue; |
| | 377 | all_skipped = 0; |
| | 378 | if (!strncmp(vp->ival, ptr, opt_len(ptr))) { |
| | 379 | ret = 0; |
| | 380 | if (o->roff1) { |
| | 381 | if (vp->or) |
| | 382 | *(unsigned int *) o->roff1 |= vp->oval; |
| | 383 | else |
| | 384 | *(unsigned int *) o->roff1 = vp->oval; |
| | 385 | } else { |
| | 386 | if (!o->off1) |
| | 387 | continue; |
| | 388 | val_store(ilp, vp->oval, o->off1, vp->or, data); |
| | 389 | } |
| | 390 | continue; |
| | 391 | } |
| | 392 | } |
| | 393 | |
| | 394 | if (ret && !all_skipped) |
| | 395 | show_option_values(o); |
| | 396 | else if (fn) |
| | 397 | ret = fn(data, ptr); |
| | 398 | break; |
| | 399 | } |
| | 400 | case FIO_OPT_STR_VAL_TIME: |
| | 401 | is_time = 1; |
| | 402 | case FIO_OPT_INT: |
| | 403 | case FIO_OPT_STR_VAL: { |
| | 404 | fio_opt_str_val_fn *fn = o->cb; |
| | 405 | |
| | 406 | if (is_time) |
| | 407 | ret = check_str_time(ptr, &ull); |
| | 408 | else |
| | 409 | ret = check_str_bytes(ptr, &ull, data); |
| | 410 | |
| | 411 | if (ret) |
| | 412 | break; |
| | 413 | |
| | 414 | if (o->maxval && ull > o->maxval) { |
| | 415 | fprintf(stderr, "max value out of range: %lld" |
| | 416 | " (%d max)\n", ull, o->maxval); |
| | 417 | return 1; |
| | 418 | } |
| | 419 | if (o->minval && ull < o->minval) { |
| | 420 | fprintf(stderr, "min value out of range: %lld" |
| | 421 | " (%d min)\n", ull, o->minval); |
| | 422 | return 1; |
| | 423 | } |
| | 424 | |
| | 425 | if (fn) |
| | 426 | ret = fn(data, &ull); |
| | 427 | else { |
| | 428 | if (o->type == FIO_OPT_INT) { |
| | 429 | if (first) { |
| | 430 | if (o->roff1) |
| | 431 | *(unsigned int *) o->roff1 = ull; |
| | 432 | else |
| | 433 | val_store(ilp, ull, o->off1, 0, data); |
| | 434 | } |
| | 435 | if (!more) { |
| | 436 | if (o->roff2) |
| | 437 | *(unsigned int *) o->roff2 = ull; |
| | 438 | else if (o->off2) |
| | 439 | val_store(ilp, ull, o->off2, 0, data); |
| | 440 | } |
| | 441 | } else { |
| | 442 | if (first) { |
| | 443 | if (o->roff1) |
| | 444 | *(unsigned long long *) o->roff1 = ull; |
| | 445 | else |
| | 446 | val_store(ullp, ull, o->off1, 0, data); |
| | 447 | } |
| | 448 | if (!more) { |
| | 449 | if (o->roff2) |
| | 450 | *(unsigned long long *) o->roff2 = ull; |
| | 451 | else if (o->off2) |
| | 452 | val_store(ullp, ull, o->off2, 0, data); |
| | 453 | } |
| | 454 | } |
| | 455 | } |
| | 456 | break; |
| | 457 | } |
| | 458 | case FIO_OPT_FLOAT_LIST: { |
| | 459 | |
| | 460 | if (first) { |
| | 461 | ul2 = 1; |
| | 462 | ilp = td_var(data, o->off2); |
| | 463 | *ilp = ul2; |
| | 464 | } |
| | 465 | if (curr >= o->maxlen) { |
| | 466 | fprintf(stderr, "the list exceeding max length %d\n", |
| | 467 | o->maxlen); |
| | 468 | return 1; |
| | 469 | } |
| | 470 | if(!str_to_float(ptr, &uf)){ |
| | 471 | fprintf(stderr, "not a floating point value: %s\n", |
| | 472 | ptr); |
| | 473 | return 1; |
| | 474 | } |
| | 475 | if (!isnan(o->maxfp) && uf > o->maxfp) { |
| | 476 | fprintf(stderr, "value out of range: %f" |
| | 477 | " (range max: %f)\n", uf, o->maxfp); |
| | 478 | return 1; |
| | 479 | } |
| | 480 | if (!isnan(o->minfp) && uf < o->minfp) { |
| | 481 | fprintf(stderr, "value out of range: %f" |
| | 482 | " (range min: %f)\n", uf, o->minfp); |
| | 483 | return 1; |
| | 484 | } |
| | 485 | |
| | 486 | flp = td_var(data, o->off1); |
| | 487 | flp[curr] = uf; |
| | 488 | |
| | 489 | break; |
| | 490 | } |
| | 491 | case FIO_OPT_STR_STORE: { |
| | 492 | fio_opt_str_fn *fn = o->cb; |
| | 493 | |
| | 494 | if (!posval_sort(o, posval)) |
| | 495 | goto match; |
| | 496 | |
| | 497 | ret = 1; |
| | 498 | for (i = 0; i < PARSE_MAX_VP; i++) { |
| | 499 | vp = &posval[i]; |
| | 500 | if (!vp->ival || vp->ival[0] == '\0') |
| | 501 | continue; |
| | 502 | all_skipped = 0; |
| | 503 | if (!strncmp(vp->ival, ptr, opt_len(ptr))) { |
| | 504 | char *rest; |
| | 505 | |
| | 506 | ret = 0; |
| | 507 | if (vp->cb) |
| | 508 | fn = vp->cb; |
| | 509 | match: |
| | 510 | if (o->roff1) |
| | 511 | cp = (char **) o->roff1; |
| | 512 | else |
| | 513 | cp = td_var(data, o->off1); |
| | 514 | *cp = strdup(ptr); |
| | 515 | rest = strstr(*cp, ":"); |
| | 516 | if (rest) { |
| | 517 | *rest = '\0'; |
| | 518 | ptr = rest + 1; |
| | 519 | } else |
| | 520 | ptr = NULL; |
| | 521 | break; |
| | 522 | } |
| | 523 | } |
| | 524 | |
| | 525 | if (ret && !all_skipped) |
| | 526 | show_option_values(o); |
| | 527 | else if (fn && ptr) |
| | 528 | ret = fn(data, ptr); |
| | 529 | |
| | 530 | break; |
| | 531 | } |
| | 532 | case FIO_OPT_RANGE: { |
| | 533 | char tmp[128]; |
| | 534 | char *p1, *p2; |
| | 535 | |
| | 536 | strncpy(tmp, ptr, sizeof(tmp) - 1); |
| | 537 | |
| | 538 | /* Handle bsrange with separate read,write values: */ |
| | 539 | p1 = strchr(tmp, ','); |
| | 540 | if (p1) |
| | 541 | *p1 = '\0'; |
| | 542 | |
| | 543 | p1 = strchr(tmp, '-'); |
| | 544 | if (!p1) { |
| | 545 | p1 = strchr(tmp, ':'); |
| | 546 | if (!p1) { |
| | 547 | ret = 1; |
| | 548 | break; |
| | 549 | } |
| | 550 | } |
| | 551 | |
| | 552 | p2 = p1 + 1; |
| | 553 | *p1 = '\0'; |
| | 554 | p1 = tmp; |
| | 555 | |
| | 556 | ret = 1; |
| | 557 | if (!check_range_bytes(p1, &ul1, data) && |
| | 558 | !check_range_bytes(p2, &ul2, data)) { |
| | 559 | ret = 0; |
| | 560 | if (ul1 > ul2) { |
| | 561 | unsigned long foo = ul1; |
| | 562 | |
| | 563 | ul1 = ul2; |
| | 564 | ul2 = foo; |
| | 565 | } |
| | 566 | |
| | 567 | if (first) { |
| | 568 | if (o->roff1) |
| | 569 | *(unsigned int *) o->roff1 = ul1; |
| | 570 | else |
| | 571 | val_store(ilp, ul1, o->off1, 0, data); |
| | 572 | if (o->roff2) |
| | 573 | *(unsigned int *) o->roff2 = ul2; |
| | 574 | else |
| | 575 | val_store(ilp, ul2, o->off2, 0, data); |
| | 576 | } |
| | 577 | if (o->roff3 && o->roff4) { |
| | 578 | *(unsigned int *) o->roff3 = ul1; |
| | 579 | *(unsigned int *) o->roff4 = ul2; |
| | 580 | } else if (o->off3 && o->off4) { |
| | 581 | val_store(ilp, ul1, o->off3, 0, data); |
| | 582 | val_store(ilp, ul2, o->off4, 0, data); |
| | 583 | } |
| | 584 | } |
| | 585 | |
| | 586 | break; |
| | 587 | } |
| | 588 | case FIO_OPT_BOOL: |
| | 589 | case FIO_OPT_STR_SET: { |
| | 590 | fio_opt_int_fn *fn = o->cb; |
| | 591 | |
| | 592 | if (ptr) |
| | 593 | ret = check_int(ptr, &il); |
| | 594 | else if (o->type == FIO_OPT_BOOL) |
| | 595 | ret = 1; |
| | 596 | else |
| | 597 | il = 1; |
| | 598 | |
| | 599 | if (ret) |
| | 600 | break; |
| | 601 | |
| | 602 | if (o->maxval && il > (int) o->maxval) { |
| | 603 | fprintf(stderr, "max value out of range: %d (%d max)\n", |
| | 604 | il, o->maxval); |
| | 605 | return 1; |
| | 606 | } |
| | 607 | if (o->minval && il < o->minval) { |
| | 608 | fprintf(stderr, "min value out of range: %d (%d min)\n", |
| | 609 | il, o->minval); |
| | 610 | return 1; |
| | 611 | } |
| | 612 | |
| | 613 | if (o->neg) |
| | 614 | il = !il; |
| | 615 | |
| | 616 | if (fn) |
| | 617 | ret = fn(data, &il); |
| | 618 | else { |
| | 619 | if (first) { |
| | 620 | if (o->roff1) |
| | 621 | *(unsigned int *)o->roff1 = il; |
| | 622 | else |
| | 623 | val_store(ilp, il, o->off1, 0, data); |
| | 624 | } |
| | 625 | if (!more) { |
| | 626 | if (o->roff2) |
| | 627 | *(unsigned int *) o->roff2 = il; |
| | 628 | else if (o->off2) |
| | 629 | val_store(ilp, il, o->off2, 0, data); |
| | 630 | } |
| | 631 | } |
| | 632 | break; |
| | 633 | } |
| | 634 | case FIO_OPT_DEPRECATED: |
| | 635 | fprintf(stdout, "Option %s is deprecated\n", o->name); |
| | 636 | break; |
| | 637 | default: |
| | 638 | fprintf(stderr, "Bad option type %u\n", o->type); |
| | 639 | ret = 1; |
| | 640 | } |
| | 641 | |
| | 642 | if (ret) |
| | 643 | return ret; |
| | 644 | |
| | 645 | if (o->verify) { |
| | 646 | ret = o->verify(o, data); |
| | 647 | if (ret) { |
| | 648 | fprintf(stderr,"Correct format for offending option\n"); |
| | 649 | fprintf(stderr, "%20s: %s\n", o->name, o->help); |
| | 650 | show_option_help(o, stderr); |
| | 651 | } |
| | 652 | } |
| | 653 | |
| | 654 | return ret; |
| | 655 | } |
| | 656 | |
| | 657 | static int handle_option(struct fio_option *o, const char *__ptr, void *data) |
| | 658 | { |
| | 659 | char *o_ptr, *ptr, *ptr2; |
| | 660 | int ret, done; |
| | 661 | |
| | 662 | dprint(FD_PARSE, "handle_option=%s, ptr=%s\n", o->name, __ptr); |
| | 663 | |
| | 664 | o_ptr = ptr = NULL; |
| | 665 | if (__ptr) |
| | 666 | o_ptr = ptr = strdup(__ptr); |
| | 667 | |
| | 668 | /* |
| | 669 | * See if we have another set of parameters, hidden after a comma. |
| | 670 | * Do this before parsing this round, to check if we should |
| | 671 | * copy set 1 options to set 2. |
| | 672 | */ |
| | 673 | done = 0; |
| | 674 | ret = 1; |
| | 675 | do { |
| | 676 | int __ret; |
| | 677 | |
| | 678 | ptr2 = NULL; |
| | 679 | if (ptr && |
| | 680 | (o->type != FIO_OPT_STR_STORE) && |
| | 681 | (o->type != FIO_OPT_STR) && |
| | 682 | (o->type != FIO_OPT_FLOAT_LIST)) { |
| | 683 | ptr2 = strchr(ptr, ','); |
| | 684 | if (ptr2 && *(ptr2 + 1) == '\0') |
| | 685 | *ptr2 = '\0'; |
| | 686 | if (o->type != FIO_OPT_STR_MULTI) { |
| | 687 | if (!ptr2) |
| | 688 | ptr2 = strchr(ptr, ':'); |
| | 689 | if (!ptr2) |
| | 690 | ptr2 = strchr(ptr, '-'); |
| | 691 | } |
| | 692 | } else if (ptr && o->type == FIO_OPT_FLOAT_LIST) { |
| | 693 | ptr2 = strchr(ptr, ':'); |
| | 694 | } |
| | 695 | |
| | 696 | /* |
| | 697 | * Don't return early if parsing the first option fails - if |
| | 698 | * we are doing multiple arguments, we can allow the first one |
| | 699 | * being empty. |
| | 700 | */ |
| | 701 | __ret = __handle_option(o, ptr, data, !done, !!ptr2, done); |
| | 702 | if (ret) |
| | 703 | ret = __ret; |
| | 704 | |
| | 705 | if (!ptr2) |
| | 706 | break; |
| | 707 | |
| | 708 | ptr = ptr2 + 1; |
| | 709 | done++; |
| | 710 | } while (1); |
| | 711 | |
| | 712 | if (o_ptr) |
| | 713 | free(o_ptr); |
| | 714 | return ret; |
| | 715 | } |
| | 716 | |
| | 717 | static struct fio_option *get_option(const char *opt, |
| | 718 | struct fio_option *options, char **post) |
| | 719 | { |
| | 720 | struct fio_option *o; |
| | 721 | char *ret; |
| | 722 | |
| | 723 | ret = strchr(opt, '='); |
| | 724 | if (ret) { |
| | 725 | *post = ret; |
| | 726 | *ret = '\0'; |
| | 727 | ret = (char *) opt; |
| | 728 | (*post)++; |
| | 729 | strip_blank_end(ret); |
| | 730 | o = find_option(options, ret); |
| | 731 | } else { |
| | 732 | o = find_option(options, opt); |
| | 733 | *post = NULL; |
| | 734 | } |
| | 735 | |
| | 736 | return o; |
| | 737 | } |
| | 738 | |
| | 739 | static int opt_cmp(const void *p1, const void *p2) |
| | 740 | { |
| | 741 | struct fio_option *o1, *o2; |
| | 742 | char *s1, *s2, *foo; |
| | 743 | int prio1, prio2; |
| | 744 | |
| | 745 | s1 = strdup(*((char **) p1)); |
| | 746 | s2 = strdup(*((char **) p2)); |
| | 747 | |
| | 748 | o1 = get_option(s1, fio_options, &foo); |
| | 749 | o2 = get_option(s2, fio_options, &foo); |
| | 750 | |
| | 751 | prio1 = prio2 = 0; |
| | 752 | if (o1) |
| | 753 | prio1 = o1->prio; |
| | 754 | if (o2) |
| | 755 | prio2 = o2->prio; |
| | 756 | |
| | 757 | free(s1); |
| | 758 | free(s2); |
| | 759 | return prio2 - prio1; |
| | 760 | } |
| | 761 | |
| | 762 | void sort_options(char **opts, struct fio_option *options, int num_opts) |
| | 763 | { |
| | 764 | fio_options = options; |
| | 765 | qsort(opts, num_opts, sizeof(char *), opt_cmp); |
| | 766 | fio_options = NULL; |
| | 767 | } |
| | 768 | |
| | 769 | int parse_cmd_option(const char *opt, const char *val, |
| | 770 | struct fio_option *options, void *data) |
| | 771 | { |
| | 772 | struct fio_option *o; |
| | 773 | |
| | 774 | o = find_option(options, opt); |
| | 775 | if (!o) { |
| | 776 | fprintf(stderr, "Bad option <%s>\n", opt); |
| | 777 | return 1; |
| | 778 | } |
| | 779 | |
| | 780 | if (!handle_option(o, val, data)) |
| | 781 | return 0; |
| | 782 | |
| | 783 | fprintf(stderr, "fio: failed parsing %s=%s\n", opt, val); |
| | 784 | return 1; |
| | 785 | } |
| | 786 | |
| | 787 | /* |
| | 788 | * Return a copy of the input string with substrings of the form ${VARNAME} |
| | 789 | * substituted with the value of the environment variable VARNAME. The |
| | 790 | * substitution always occurs, even if VARNAME is empty or the corresponding |
| | 791 | * environment variable undefined. |
| | 792 | */ |
| | 793 | static char *option_dup_subs(const char *opt) |
| | 794 | { |
| | 795 | char out[OPT_LEN_MAX+1]; |
| | 796 | char in[OPT_LEN_MAX+1]; |
| | 797 | char *outptr = out; |
| | 798 | char *inptr = in; |
| | 799 | char *ch1, *ch2, *env; |
| | 800 | ssize_t nchr = OPT_LEN_MAX; |
| | 801 | size_t envlen; |
| | 802 | |
| | 803 | if (strlen(opt) + 1 > OPT_LEN_MAX) { |
| | 804 | fprintf(stderr, "OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX); |
| | 805 | return NULL; |
| | 806 | } |
| | 807 | |
| | 808 | in[OPT_LEN_MAX] = '\0'; |
| | 809 | strncpy(in, opt, OPT_LEN_MAX); |
| | 810 | |
| | 811 | while (*inptr && nchr > 0) { |
| | 812 | if (inptr[0] == '$' && inptr[1] == '{') { |
| | 813 | ch2 = strchr(inptr, '}'); |
| | 814 | if (ch2 && inptr+1 < ch2) { |
| | 815 | ch1 = inptr+2; |
| | 816 | inptr = ch2+1; |
| | 817 | *ch2 = '\0'; |
| | 818 | |
| | 819 | env = getenv(ch1); |
| | 820 | if (env) { |
| | 821 | envlen = strlen(env); |
| | 822 | if (envlen <= nchr) { |
| | 823 | memcpy(outptr, env, envlen); |
| | 824 | outptr += envlen; |
| | 825 | nchr -= envlen; |
| | 826 | } |
| | 827 | } |
| | 828 | |
| | 829 | continue; |
| | 830 | } |
| | 831 | } |
| | 832 | |
| | 833 | *outptr++ = *inptr++; |
| | 834 | --nchr; |
| | 835 | } |
| | 836 | |
| | 837 | *outptr = '\0'; |
| | 838 | return strdup(out); |
| | 839 | } |
| | 840 | |
| | 841 | int parse_option(const char *opt, struct fio_option *options, void *data) |
| | 842 | { |
| | 843 | struct fio_option *o; |
| | 844 | char *post, *tmp; |
| | 845 | |
| | 846 | tmp = option_dup_subs(opt); |
| | 847 | if (!tmp) |
| | 848 | return 1; |
| | 849 | |
| | 850 | o = get_option(tmp, options, &post); |
| | 851 | if (!o) { |
| | 852 | fprintf(stderr, "Bad option <%s>\n", tmp); |
| | 853 | free(tmp); |
| | 854 | return 1; |
| | 855 | } |
| | 856 | |
| | 857 | if (!handle_option(o, post, data)) { |
| | 858 | free(tmp); |
| | 859 | return 0; |
| | 860 | } |
| | 861 | |
| | 862 | fprintf(stderr, "fio: failed parsing %s\n", opt); |
| | 863 | free(tmp); |
| | 864 | return 1; |
| | 865 | } |
| | 866 | |
| | 867 | /* |
| | 868 | * Option match, levenshtein distance. Handy for not quite remembering what |
| | 869 | * the option name is. |
| | 870 | */ |
| | 871 | static int string_distance(const char *s1, const char *s2) |
| | 872 | { |
| | 873 | unsigned int s1_len = strlen(s1); |
| | 874 | unsigned int s2_len = strlen(s2); |
| | 875 | unsigned int *p, *q, *r; |
| | 876 | unsigned int i, j; |
| | 877 | |
| | 878 | p = malloc(sizeof(unsigned int) * (s2_len + 1)); |
| | 879 | q = malloc(sizeof(unsigned int) * (s2_len + 1)); |
| | 880 | |
| | 881 | p[0] = 0; |
| | 882 | for (i = 1; i <= s2_len; i++) |
| | 883 | p[i] = p[i - 1] + 1; |
| | 884 | |
| | 885 | for (i = 1; i <= s1_len; i++) { |
| | 886 | q[0] = p[0] + 1; |
| | 887 | for (j = 1; j <= s2_len; j++) { |
| | 888 | unsigned int sub = p[j - 1]; |
| | 889 | |
| | 890 | if (s1[i - 1] != s2[j - 1]) |
| | 891 | sub++; |
| | 892 | |
| | 893 | q[j] = min(p[j] + 1, min(q[j - 1] + 1, sub)); |
| | 894 | } |
| | 895 | r = p; |
| | 896 | p = q; |
| | 897 | q = r; |
| | 898 | } |
| | 899 | |
| | 900 | i = p[s2_len]; |
| | 901 | free(p); |
| | 902 | free(q); |
| | 903 | return i; |
| | 904 | } |
| | 905 | |
| | 906 | static struct fio_option *find_child(struct fio_option *options, |
| | 907 | struct fio_option *o) |
| | 908 | { |
| | 909 | struct fio_option *__o; |
| | 910 | |
| | 911 | for (__o = options + 1; __o->name; __o++) |
| | 912 | if (__o->parent && !strcmp(__o->parent, o->name)) |
| | 913 | return __o; |
| | 914 | |
| | 915 | return NULL; |
| | 916 | } |
| | 917 | |
| | 918 | static void __print_option(struct fio_option *o, struct fio_option *org, |
| | 919 | int level) |
| | 920 | { |
| | 921 | char name[256], *p; |
| | 922 | int depth; |
| | 923 | |
| | 924 | if (!o) |
| | 925 | return; |
| | 926 | if (!org) |
| | 927 | org = o; |
| | 928 | |
| | 929 | p = name; |
| | 930 | depth = level; |
| | 931 | while (depth--) |
| | 932 | p += sprintf(p, "%s", " "); |
| | 933 | |
| | 934 | sprintf(p, "%s", o->name); |
| | 935 | |
| | 936 | printf("%-24s: %s\n", name, o->help); |
| | 937 | } |
| | 938 | |
| | 939 | static void print_option(struct fio_option *o) |
| | 940 | { |
| | 941 | struct fio_option *parent; |
| | 942 | struct fio_option *__o; |
| | 943 | unsigned int printed; |
| | 944 | unsigned int level; |
| | 945 | |
| | 946 | __print_option(o, NULL, 0); |
| | 947 | parent = o; |
| | 948 | level = 0; |
| | 949 | do { |
| | 950 | level++; |
| | 951 | printed = 0; |
| | 952 | |
| | 953 | while ((__o = find_child(o, parent)) != NULL) { |
| | 954 | __print_option(__o, o, level); |
| | 955 | o = __o; |
| | 956 | printed++; |
| | 957 | } |
| | 958 | |
| | 959 | parent = o; |
| | 960 | } while (printed); |
| | 961 | } |
| | 962 | |
| | 963 | int show_cmd_help(struct fio_option *options, const char *name) |
| | 964 | { |
| | 965 | struct fio_option *o, *closest; |
| | 966 | unsigned int best_dist = -1U; |
| | 967 | int found = 0; |
| | 968 | int show_all = 0; |
| | 969 | |
| | 970 | if (!name || !strcmp(name, "all")) |
| | 971 | show_all = 1; |
| | 972 | |
| | 973 | closest = NULL; |
| | 974 | best_dist = -1; |
| | 975 | for (o = &options[0]; o->name; o++) { |
| | 976 | int match = 0; |
| | 977 | |
| | 978 | if (o->type == FIO_OPT_DEPRECATED) |
| | 979 | continue; |
| | 980 | if (!exec_profile && o->prof_name) |
| | 981 | continue; |
| | 982 | |
| | 983 | if (name) { |
| | 984 | if (!strcmp(name, o->name) || |
| | 985 | (o->alias && !strcmp(name, o->alias))) |
| | 986 | match = 1; |
| | 987 | else { |
| | 988 | unsigned int dist; |
| | 989 | |
| | 990 | dist = string_distance(name, o->name); |
| | 991 | if (dist < best_dist) { |
| | 992 | best_dist = dist; |
| | 993 | closest = o; |
| | 994 | } |
| | 995 | } |
| | 996 | } |
| | 997 | |
| | 998 | if (show_all || match) { |
| | 999 | found = 1; |
| | 1000 | if (match) |
| | 1001 | printf("%20s: %s\n", o->name, o->help); |
| | 1002 | if (show_all) { |
| | 1003 | if (!o->parent) |
| | 1004 | print_option(o); |
| | 1005 | continue; |
| | 1006 | } |
| | 1007 | } |
| | 1008 | |
| | 1009 | if (!match) |
| | 1010 | continue; |
| | 1011 | |
| | 1012 | show_option_help(o, stdout); |
| | 1013 | } |
| | 1014 | |
| | 1015 | if (found) |
| | 1016 | return 0; |
| | 1017 | |
| | 1018 | printf("No such command: %s", name); |
| | 1019 | |
| | 1020 | /* |
| | 1021 | * Only print an appropriately close option, one where the edit |
| | 1022 | * distance isn't too big. Otherwise we get crazy matches. |
| | 1023 | */ |
| | 1024 | if (closest && best_dist < 3) { |
| | 1025 | printf(" - showing closest match\n"); |
| | 1026 | printf("%20s: %s\n", closest->name, closest->help); |
| | 1027 | show_option_help(closest, stdout); |
| | 1028 | } else |
| | 1029 | printf("\n"); |
| | 1030 | |
| | 1031 | return 1; |
| | 1032 | } |
| | 1033 | |
| | 1034 | /* |
| | 1035 | * Handle parsing of default parameters. |
| | 1036 | */ |
| | 1037 | void fill_default_options(void *data, struct fio_option *options) |
| | 1038 | { |
| | 1039 | struct fio_option *o; |
| | 1040 | |
| | 1041 | dprint(FD_PARSE, "filling default options\n"); |
| | 1042 | |
| | 1043 | for (o = &options[0]; o->name; o++) |
| | 1044 | if (o->def) |
| | 1045 | handle_option(o, o->def, data); |
| | 1046 | } |
| | 1047 | |
| | 1048 | void option_init(struct fio_option *o) |
| | 1049 | { |
| | 1050 | if (o->type == FIO_OPT_DEPRECATED) |
| | 1051 | return; |
| | 1052 | if (o->type == FIO_OPT_BOOL) { |
| | 1053 | o->minval = 0; |
| | 1054 | o->maxval = 1; |
| | 1055 | } |
| | 1056 | if (o->type == FIO_OPT_FLOAT_LIST) { |
| | 1057 | o->minfp = NAN; |
| | 1058 | o->maxfp = NAN; |
| | 1059 | } |
| | 1060 | if (o->type == FIO_OPT_STR_SET && o->def) { |
| | 1061 | fprintf(stderr, "Option %s: string set option with" |
| | 1062 | " default will always be true\n", o->name); |
| | 1063 | } |
| | 1064 | if (!o->cb && (!o->off1 && !o->roff1)) { |
| | 1065 | fprintf(stderr, "Option %s: neither cb nor offset given\n", |
| | 1066 | o->name); |
| | 1067 | } |
| | 1068 | if (o->type == FIO_OPT_STR || o->type == FIO_OPT_STR_STORE || |
| | 1069 | o->type == FIO_OPT_STR_MULTI) |
| | 1070 | return; |
| | 1071 | if (o->cb && ((o->off1 || o->off2 || o->off3 || o->off4) || |
| | 1072 | (o->roff1 || o->roff2 || o->roff3 || o->roff4))) { |
| | 1073 | fprintf(stderr, "Option %s: both cb and offset given\n", |
| | 1074 | o->name); |
| | 1075 | } |
| | 1076 | } |
| | 1077 | |
| | 1078 | /* |
| | 1079 | * Sanitize the options structure. For now it just sets min/max for bool |
| | 1080 | * values and whether both callback and offsets are given. |
| | 1081 | */ |
| | 1082 | void options_init(struct fio_option *options) |
| | 1083 | { |
| | 1084 | struct fio_option *o; |
| | 1085 | |
| | 1086 | dprint(FD_PARSE, "init options\n"); |
| | 1087 | |
| | 1088 | for (o = &options[0]; o->name; o++) |
| | 1089 | option_init(o); |
| | 1090 | } |
projects / fio.git / blame_incremental