init.c

   1 /*
   2  * This file contains job initialization and setup functions.
   3  */
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6 #include <unistd.h>
   7 #include <fcntl.h>
   8 #include <ctype.h>
   9 #include <string.h>
  10 #include <errno.h>
  11 #include <sys/ipc.h>
  12 #include <sys/types.h>
  13 #include <sys/stat.h>
  14
  15 #include "fio.h"
  16 #ifndef FIO_NO_HAVE_SHM_H
  17 #include <sys/shm.h>
  18 #endif
  19
  20 #include "parse.h"
  21 #include "smalloc.h"
  22 #include "filehash.h"
  23 #include "verify.h"
  24 #include "profile.h"
  25 #include "server.h"
  26 #include "idletime.h"
  27 #include "filelock.h"
  28 #include "steadystate.h"
  29
  30 #include "oslib/getopt.h"
  31 #include "oslib/strcasestr.h"
  32
  33 #include "crc/test.h"
  34 #include "lib/pow2.h"
  35 #include "lib/memcpy.h"
  36
  37 const char fio_version_string[] = FIO_VERSION;
  38
  39 #define FIO_RANDSEED            (0xb1899bedUL)
  40
  41 static char **ini_file;
  42 static int max_jobs = FIO_MAX_JOBS;
  43 static int dump_cmdline;
  44 static int parse_only;
  45
  46 static struct thread_data def_thread;
  47 struct thread_data *threads = NULL;
  48 static char **job_sections;
  49 static int nr_job_sections;
  50
  51 int exitall_on_terminate = 0;
  52 int output_format = FIO_OUTPUT_NORMAL;
  53 int eta_print = FIO_ETA_AUTO;
  54 int eta_new_line = 0;
  55 FILE *f_out = NULL;
  56 FILE *f_err = NULL;
  57 char *exec_profile = NULL;
  58 int warnings_fatal = 0;
  59 int terse_version = 3;
  60 int is_backend = 0;
  61 int nr_clients = 0;
  62 int log_syslog = 0;
  63
  64 int write_bw_log = 0;
  65 int read_only = 0;
  66 int status_interval = 0;
  67
  68 char *trigger_file = NULL;
  69 long long trigger_timeout = 0;
  70 char *trigger_cmd = NULL;
  71 char *trigger_remote_cmd = NULL;
  72
  73 char *aux_path = NULL;
  74
  75 static int prev_group_jobs;
  76
  77 unsigned long fio_debug = 0;
  78 unsigned int fio_debug_jobno = -1;
  79 unsigned int *fio_debug_jobp = NULL;
  80
  81 static char cmd_optstr[256];
  82 static bool did_arg;
  83
  84 #define FIO_CLIENT_FLAG         (1 << 16)
  85
  86 /*
  87  * Command line options. These will contain the above, plus a few
  88  * extra that only pertain to fio itself and not jobs.
  89  */
  90 static struct option l_opts[FIO_NR_OPTIONS] = {
  91         {
  92                 .name           = (char *) "output",
  93                 .has_arg        = required_argument,
  94                 .val            = 'o' | FIO_CLIENT_FLAG,
  95         },
  96         {
  97                 .name           = (char *) "latency-log",
  98                 .has_arg        = required_argument,
  99                 .val            = 'l' | FIO_CLIENT_FLAG,
 100         },
 101         {
 102                 .name           = (char *) "bandwidth-log",
 103                 .has_arg        = no_argument,
 104                 .val            = 'b' | FIO_CLIENT_FLAG,
 105         },
 106         {
 107                 .name           = (char *) "minimal",
 108                 .has_arg        = no_argument,
 109                 .val            = 'm' | FIO_CLIENT_FLAG,
 110         },
 111         {
 112                 .name           = (char *) "output-format",
 113                 .has_arg        = required_argument,
 114                 .val            = 'F' | FIO_CLIENT_FLAG,
 115         },
 116         {
 117                 .name           = (char *) "append-terse",
 118                 .has_arg        = optional_argument,
 119                 .val            = 'f',
 120         },
 121         {
 122                 .name           = (char *) "version",
 123                 .has_arg        = no_argument,
 124                 .val            = 'v' | FIO_CLIENT_FLAG,
 125         },
 126         {
 127                 .name           = (char *) "help",
 128                 .has_arg        = no_argument,
 129                 .val            = 'h' | FIO_CLIENT_FLAG,
 130         },
 131         {
 132                 .name           = (char *) "cmdhelp",
 133                 .has_arg        = optional_argument,
 134                 .val            = 'c' | FIO_CLIENT_FLAG,
 135         },
 136         {
 137                 .name           = (char *) "enghelp",
 138                 .has_arg        = optional_argument,
 139                 .val            = 'i' | FIO_CLIENT_FLAG,
 140         },
 141         {
 142                 .name           = (char *) "showcmd",
 143                 .has_arg        = no_argument,
 144                 .val            = 's' | FIO_CLIENT_FLAG,
 145         },
 146         {
 147                 .name           = (char *) "readonly",
 148                 .has_arg        = no_argument,
 149                 .val            = 'r' | FIO_CLIENT_FLAG,
 150         },
 151         {
 152                 .name           = (char *) "eta",
 153                 .has_arg        = required_argument,
 154                 .val            = 'e' | FIO_CLIENT_FLAG,
 155         },
 156         {
 157                 .name           = (char *) "eta-newline",
 158                 .has_arg        = required_argument,
 159                 .val            = 'E' | FIO_CLIENT_FLAG,
 160         },
 161         {
 162                 .name           = (char *) "debug",
 163                 .has_arg        = required_argument,
 164                 .val            = 'd' | FIO_CLIENT_FLAG,
 165         },
 166         {
 167                 .name           = (char *) "parse-only",
 168                 .has_arg        = no_argument,
 169                 .val            = 'P' | FIO_CLIENT_FLAG,
 170         },
 171         {
 172                 .name           = (char *) "section",
 173                 .has_arg        = required_argument,
 174                 .val            = 'x' | FIO_CLIENT_FLAG,
 175         },
 176 #ifdef CONFIG_ZLIB
 177         {
 178                 .name           = (char *) "inflate-log",
 179                 .has_arg        = required_argument,
 180                 .val            = 'X' | FIO_CLIENT_FLAG,
 181         },
 182 #endif
 183         {
 184                 .name           = (char *) "alloc-size",
 185                 .has_arg        = required_argument,
 186                 .val            = 'a' | FIO_CLIENT_FLAG,
 187         },
 188         {
 189                 .name           = (char *) "profile",
 190                 .has_arg        = required_argument,
 191                 .val            = 'p' | FIO_CLIENT_FLAG,
 192         },
 193         {
 194                 .name           = (char *) "warnings-fatal",
 195                 .has_arg        = no_argument,
 196                 .val            = 'w' | FIO_CLIENT_FLAG,
 197         },
 198         {
 199                 .name           = (char *) "max-jobs",
 200                 .has_arg        = required_argument,
 201                 .val            = 'j' | FIO_CLIENT_FLAG,
 202         },
 203         {
 204                 .name           = (char *) "terse-version",
 205                 .has_arg        = required_argument,
 206                 .val            = 'V' | FIO_CLIENT_FLAG,
 207         },
 208         {
 209                 .name           = (char *) "server",
 210                 .has_arg        = optional_argument,
 211                 .val            = 'S',
 212         },
 213         {       .name           = (char *) "daemonize",
 214                 .has_arg        = required_argument,
 215                 .val            = 'D',
 216         },
 217         {
 218                 .name           = (char *) "client",
 219                 .has_arg        = required_argument,
 220                 .val            = 'C',
 221         },
 222         {
 223                 .name           = (char *) "remote-config",
 224                 .has_arg        = required_argument,
 225                 .val            = 'R',
 226         },
 227         {
 228                 .name           = (char *) "cpuclock-test",
 229                 .has_arg        = no_argument,
 230                 .val            = 'T',
 231         },
 232         {
 233                 .name           = (char *) "crctest",
 234                 .has_arg        = optional_argument,
 235                 .val            = 'G',
 236         },
 237         {
 238                 .name           = (char *) "memcpytest",
 239                 .has_arg        = optional_argument,
 240                 .val            = 'M',
 241         },
 242         {
 243                 .name           = (char *) "idle-prof",
 244                 .has_arg        = required_argument,
 245                 .val            = 'I',
 246         },
 247         {
 248                 .name           = (char *) "status-interval",
 249                 .has_arg        = required_argument,
 250                 .val            = 'L',
 251         },
 252         {
 253                 .name           = (char *) "trigger-file",
 254                 .has_arg        = required_argument,
 255                 .val            = 'W',
 256         },
 257         {
 258                 .name           = (char *) "trigger-timeout",
 259                 .has_arg        = required_argument,
 260                 .val            = 'B',
 261         },
 262         {
 263                 .name           = (char *) "trigger",
 264                 .has_arg        = required_argument,
 265                 .val            = 'H',
 266         },
 267         {
 268                 .name           = (char *) "trigger-remote",
 269                 .has_arg        = required_argument,
 270                 .val            = 'J',
 271         },
 272         {
 273                 .name           = (char *) "aux-path",
 274                 .has_arg        = required_argument,
 275                 .val            = 'K',
 276         },
 277         {
 278                 .name           = NULL,
 279         },
 280 };
 281
 282 void free_threads_shm(void)
 283 {
 284         if (threads) {
 285                 void *tp = threads;
 286 #ifndef CONFIG_NO_SHM
 287                 struct shmid_ds sbuf;
 288
 289                 threads = NULL;
 290                 shmdt(tp);
 291                 shmctl(shm_id, IPC_RMID, &sbuf);
 292                 shm_id = -1;
 293 #else
 294                 threads = NULL;
 295                 free(tp);
 296 #endif
 297         }
 298 }
 299
 300 static void free_shm(void)
 301 {
 302         if (threads) {
 303                 flow_exit();
 304                 fio_debug_jobp = NULL;
 305                 free_threads_shm();
 306         }
 307
 308         free(trigger_file);
 309         free(trigger_cmd);
 310         free(trigger_remote_cmd);
 311         trigger_file = trigger_cmd = trigger_remote_cmd = NULL;
 312
 313         options_free(fio_options, &def_thread.o);
 314         fio_filelock_exit();
 315         file_hash_exit();
 316         scleanup();
 317 }
 318
 319 /*
 320  * The thread area is shared between the main process and the job
 321  * threads/processes. So setup a shared memory segment that will hold
 322  * all the job info. We use the end of the region for keeping track of
 323  * open files across jobs, for file sharing.
 324  */
 325 static int setup_thread_area(void)
 326 {
 327         if (threads)
 328                 return 0;
 329
 330         /*
 331          * 1024 is too much on some machines, scale max_jobs if
 332          * we get a failure that looks like too large a shm segment
 333          */
 334         do {
 335                 size_t size = max_jobs * sizeof(struct thread_data);
 336
 337                 size += sizeof(unsigned int);
 338
 339 #ifndef CONFIG_NO_SHM
 340                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 341                 if (shm_id != -1)
 342                         break;
 343                 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
 344                         perror("shmget");
 345                         break;
 346                 }
 347 #else
 348                 threads = malloc(size);
 349                 if (threads)
 350                         break;
 351 #endif
 352
 353                 max_jobs >>= 1;
 354         } while (max_jobs);
 355
 356 #ifndef CONFIG_NO_SHM
 357         if (shm_id == -1)
 358                 return 1;
 359
 360         threads = shmat(shm_id, NULL, 0);
 361         if (threads == (void *) -1) {
 362                 perror("shmat");
 363                 return 1;
 364         }
 365         if (shm_attach_to_open_removed())
 366                 shmctl(shm_id, IPC_RMID, NULL);
 367 #endif
 368
 369         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 370         fio_debug_jobp = (unsigned int *)(threads + max_jobs);
 371         *fio_debug_jobp = -1;
 372
 373         flow_init();
 374
 375         return 0;
 376 }
 377
 378 static void dump_print_option(struct print_option *p)
 379 {
 380         const char *delim;
 381
 382         if (!strcmp("description", p->name))
 383                 delim = "\"";
 384         else
 385                 delim = "";
 386
 387         log_info("--%s%s", p->name, p->value ? "" : " ");
 388         if (p->value)
 389                 log_info("=%s%s%s ", delim, p->value, delim);
 390 }
 391
 392 static void dump_opt_list(struct thread_data *td)
 393 {
 394         struct flist_head *entry;
 395         struct print_option *p;
 396
 397         if (flist_empty(&td->opt_list))
 398                 return;
 399
 400         flist_for_each(entry, &td->opt_list) {
 401                 p = flist_entry(entry, struct print_option, list);
 402                 dump_print_option(p);
 403         }
 404 }
 405
 406 static void fio_dump_options_free(struct thread_data *td)
 407 {
 408         while (!flist_empty(&td->opt_list)) {
 409                 struct print_option *p;
 410
 411                 p = flist_first_entry(&td->opt_list, struct print_option, list);
 412                 flist_del_init(&p->list);
 413                 free(p->name);
 414                 free(p->value);
 415                 free(p);
 416         }
 417 }
 418
 419 static void copy_opt_list(struct thread_data *dst, struct thread_data *src)
 420 {
 421         struct flist_head *entry;
 422
 423         if (flist_empty(&src->opt_list))
 424                 return;
 425
 426         flist_for_each(entry, &src->opt_list) {
 427                 struct print_option *srcp, *dstp;
 428
 429                 srcp = flist_entry(entry, struct print_option, list);
 430                 dstp = malloc(sizeof(*dstp));
 431                 dstp->name = strdup(srcp->name);
 432                 if (srcp->value)
 433                         dstp->value = strdup(srcp->value);
 434                 else
 435                         dstp->value = NULL;
 436                 flist_add_tail(&dstp->list, &dst->opt_list);
 437         }
 438 }
 439
 440 /*
 441  * Return a free job structure.
 442  */
 443 static struct thread_data *get_new_job(bool global, struct thread_data *parent,
 444                                        bool preserve_eo, const char *jobname)
 445 {
 446         struct thread_data *td;
 447
 448         if (global)
 449                 return &def_thread;
 450         if (setup_thread_area()) {
 451                 log_err("error: failed to setup shm segment\n");
 452                 return NULL;
 453         }
 454         if (thread_number >= max_jobs) {
 455                 log_err("error: maximum number of jobs (%d) reached.\n",
 456                                 max_jobs);
 457                 return NULL;
 458         }
 459
 460         td = &threads[thread_number++];
 461         *td = *parent;
 462
 463         INIT_FLIST_HEAD(&td->opt_list);
 464         if (parent != &def_thread)
 465                 copy_opt_list(td, parent);
 466
 467         td->io_ops = NULL;
 468         td->io_ops_init = 0;
 469         if (!preserve_eo)
 470                 td->eo = NULL;
 471
 472         td->o.uid = td->o.gid = -1U;
 473
 474         dup_files(td, parent);
 475         fio_options_mem_dupe(td);
 476
 477         profile_add_hooks(td);
 478
 479         td->thread_number = thread_number;
 480         td->subjob_number = 0;
 481
 482         if (jobname)
 483                 td->o.name = strdup(jobname);
 484
 485         if (!parent->o.group_reporting || parent == &def_thread)
 486                 stat_number++;
 487
 488         return td;
 489 }
 490
 491 static void put_job(struct thread_data *td)
 492 {
 493         if (td == &def_thread)
 494                 return;
 495
 496         profile_td_exit(td);
 497         flow_exit_job(td);
 498
 499         if (td->error)
 500                 log_info("fio: %s\n", td->verror);
 501
 502         fio_options_free(td);
 503         fio_dump_options_free(td);
 504         if (td->io_ops)
 505                 free_ioengine(td);
 506
 507         if (td->o.name)
 508                 free(td->o.name);
 509
 510         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 511         thread_number--;
 512 }
 513
 514 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 515 {
 516         unsigned int bs = td->o.min_bs[ddir];
 517
 518         assert(ddir_rw(ddir));
 519
 520         if (td->o.rate[ddir])
 521                 td->rate_bps[ddir] = td->o.rate[ddir];
 522         else
 523                 td->rate_bps[ddir] = (uint64_t) td->o.rate_iops[ddir] * bs;
 524
 525         if (!td->rate_bps[ddir]) {
 526                 log_err("rate lower than supported\n");
 527                 return -1;
 528         }
 529
 530         td->rate_next_io_time[ddir] = 0;
 531         td->rate_io_issue_bytes[ddir] = 0;
 532         td->last_usec[ddir] = 0;
 533         return 0;
 534 }
 535
 536 static int setup_rate(struct thread_data *td)
 537 {
 538         int ret = 0;
 539
 540         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
 541                 ret = __setup_rate(td, DDIR_READ);
 542         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
 543                 ret |= __setup_rate(td, DDIR_WRITE);
 544         if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
 545                 ret |= __setup_rate(td, DDIR_TRIM);
 546
 547         return ret;
 548 }
 549
 550 static int fixed_block_size(struct thread_options *o)
 551 {
 552         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 553                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 554                 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
 555                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
 556                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
 557 }
 558
 559
 560 static unsigned long long get_rand_start_delay(struct thread_data *td)
 561 {
 562         unsigned long long delayrange;
 563         uint64_t frand_max;
 564         unsigned long r;
 565
 566         delayrange = td->o.start_delay_high - td->o.start_delay;
 567
 568         frand_max = rand_max(&td->delay_state);
 569         r = __rand(&td->delay_state);
 570         delayrange = (unsigned long long) ((double) delayrange * (r / (frand_max + 1.0)));
 571
 572         delayrange += td->o.start_delay;
 573         return delayrange;
 574 }
 575
 576 /*
 577  * <3 Johannes
 578  */
 579 static unsigned int gcd(unsigned int m, unsigned int n)
 580 {
 581         if (!n)
 582                 return m;
 583
 584         return gcd(n, m % n);
 585 }
 586
 587 /*
 588  * Lazy way of fixing up options that depend on each other. We could also
 589  * define option callback handlers, but this is easier.
 590  */
 591 static int fixup_options(struct thread_data *td)
 592 {
 593         struct thread_options *o = &td->o;
 594         int ret = 0;
 595
 596 #ifndef CONFIG_PSHARED
 597         if (!o->use_thread) {
 598                 log_info("fio: this platform does not support process shared"
 599                          " mutexes, forcing use of threads. Use the 'thread'"
 600                          " option to get rid of this warning.\n");
 601                 o->use_thread = 1;
 602                 ret = warnings_fatal;
 603         }
 604 #endif
 605
 606         if (o->write_iolog_file && o->read_iolog_file) {
 607                 log_err("fio: read iolog overrides write_iolog\n");
 608                 free(o->write_iolog_file);
 609                 o->write_iolog_file = NULL;
 610                 ret = warnings_fatal;
 611         }
 612
 613         /*
 614          * only really works with 1 file
 615          */
 616         if (o->zone_size && o->open_files > 1)
 617                 o->zone_size = 0;
 618
 619         /*
 620          * If zone_range isn't specified, backward compatibility dictates it
 621          * should be made equal to zone_size.
 622          */
 623         if (o->zone_size && !o->zone_range)
 624                 o->zone_range = o->zone_size;
 625
 626         /*
 627          * Reads can do overwrites, we always need to pre-create the file
 628          */
 629         if (td_read(td))
 630                 o->overwrite = 1;
 631
 632         if (!o->min_bs[DDIR_READ])
 633                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
 634         if (!o->max_bs[DDIR_READ])
 635                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 636         if (!o->min_bs[DDIR_WRITE])
 637                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 638         if (!o->max_bs[DDIR_WRITE])
 639                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 640         if (!o->min_bs[DDIR_TRIM])
 641                 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 642         if (!o->max_bs[DDIR_TRIM])
 643                 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 644
 645         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 646         o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
 647
 648         /*
 649          * For random IO, allow blockalign offset other than min_bs.
 650          */
 651         if (!o->ba[DDIR_READ] || !td_random(td))
 652                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
 653         if (!o->ba[DDIR_WRITE] || !td_random(td))
 654                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
 655         if (!o->ba[DDIR_TRIM] || !td_random(td))
 656                 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
 657
 658         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 659             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
 660             o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
 661             !o->norandommap) {
 662                 log_err("fio: Any use of blockalign= turns off randommap\n");
 663                 o->norandommap = 1;
 664                 ret = warnings_fatal;
 665         }
 666
 667         if (!o->file_size_high)
 668                 o->file_size_high = o->file_size_low;
 669
 670         if (o->start_delay_high)
 671                 o->start_delay = get_rand_start_delay(td);
 672
 673         if (o->norandommap && o->verify != VERIFY_NONE
 674             && !fixed_block_size(o))  {
 675                 log_err("fio: norandommap given for variable block sizes, "
 676                         "verify limited\n");
 677                 ret = warnings_fatal;
 678         }
 679         if (o->bs_unaligned && (o->odirect || td_ioengine_flagged(td, FIO_RAWIO)))
 680                 log_err("fio: bs_unaligned may not work with raw io\n");
 681
 682         /*
 683          * thinktime_spin must be less than thinktime
 684          */
 685         if (o->thinktime_spin > o->thinktime)
 686                 o->thinktime_spin = o->thinktime;
 687
 688         /*
 689          * The low water mark cannot be bigger than the iodepth
 690          */
 691         if (o->iodepth_low > o->iodepth || !o->iodepth_low)
 692                 o->iodepth_low = o->iodepth;
 693
 694         /*
 695          * If batch number isn't set, default to the same as iodepth
 696          */
 697         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 698                 o->iodepth_batch = o->iodepth;
 699
 700         /*
 701          * If max batch complete number isn't set or set incorrectly,
 702          * default to the same as iodepth_batch_complete_min
 703          */
 704         if (o->iodepth_batch_complete_min > o->iodepth_batch_complete_max)
 705                 o->iodepth_batch_complete_max = o->iodepth_batch_complete_min;
 706
 707         /*
 708          * There's no need to check for in-flight overlapping IOs if the job
 709          * isn't changing data or the maximum iodepth is guaranteed to be 1
 710          */
 711         if (o->serialize_overlap && !(td->flags & TD_F_READ_IOLOG) &&
 712             (!(td_write(td) || td_trim(td)) || o->iodepth == 1))
 713                 o->serialize_overlap = 0;
 714         /*
 715          * Currently can't check for overlaps in offload mode
 716          */
 717         if (o->serialize_overlap && o->io_submit_mode == IO_MODE_OFFLOAD) {
 718                 log_err("fio: checking for in-flight overlaps when the "
 719                         "io_submit_mode is offload is not supported\n");
 720                 o->serialize_overlap = 0;
 721                 ret = warnings_fatal;
 722         }
 723
 724         if (o->nr_files > td->files_index)
 725                 o->nr_files = td->files_index;
 726
 727         if (o->open_files > o->nr_files || !o->open_files)
 728                 o->open_files = o->nr_files;
 729
 730         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
 731             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
 732             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 733             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 734                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 735                 ret = 1;
 736         }
 737         if ((o->rate[DDIR_READ] && (o->rate[DDIR_READ] < o->ratemin[DDIR_READ])) ||
 738             (o->rate[DDIR_WRITE] && (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE])) ||
 739             (o->rate[DDIR_TRIM] && (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM])) ||
 740             (o->rate_iops[DDIR_READ] && (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ])) ||
 741             (o->rate_iops[DDIR_WRITE] && (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE])) ||
 742             (o->rate_iops[DDIR_TRIM] && (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM]))) {
 743                 log_err("fio: minimum rate exceeds rate\n");
 744                 ret = 1;
 745         }
 746
 747         if (!o->timeout && o->time_based) {
 748                 log_err("fio: time_based requires a runtime/timeout setting\n");
 749                 o->time_based = 0;
 750                 ret = warnings_fatal;
 751         }
 752
 753         if (o->fill_device && !o->size)
 754                 o->size = -1ULL;
 755
 756         if (o->verify != VERIFY_NONE) {
 757                 if (td_write(td) && o->do_verify && o->numjobs > 1 &&
 758                     (o->filename ||
 759                      !(o->unique_filename &&
 760                        strstr(o->filename_format, "$jobname") &&
 761                        strstr(o->filename_format, "$jobnum") &&
 762                        strstr(o->filename_format, "$filenum")))) {
 763                         log_info("fio: multiple writers may overwrite blocks "
 764                                 "that belong to other jobs. This can cause "
 765                                 "verification failures.\n");
 766                         ret = warnings_fatal;
 767                 }
 768
 769                 /*
 770                  * Warn if verification is requested but no verification of any
 771                  * kind can be started due to time constraints
 772                  */
 773                 if (td_write(td) && o->do_verify && o->timeout &&
 774                     o->time_based && !td_read(td) && !o->verify_backlog) {
 775                         log_info("fio: verification read phase will never "
 776                                  "start because write phase uses all of "
 777                                  "runtime\n");
 778                         ret = warnings_fatal;
 779                 }
 780
 781                 if (!fio_option_is_set(o, refill_buffers))
 782                         o->refill_buffers = 1;
 783
 784                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 785                     !o->verify_interval)
 786                         o->verify_interval = o->min_bs[DDIR_WRITE];
 787
 788                 /*
 789                  * Verify interval must be smaller or equal to the
 790                  * write size.
 791                  */
 792                 if (o->verify_interval > o->min_bs[DDIR_WRITE])
 793                         o->verify_interval = o->min_bs[DDIR_WRITE];
 794                 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
 795                         o->verify_interval = o->min_bs[DDIR_READ];
 796
 797                 /*
 798                  * Verify interval must be a factor or both min and max
 799                  * write size
 800                  */
 801                 if (o->verify_interval % o->min_bs[DDIR_WRITE] ||
 802                     o->verify_interval % o->max_bs[DDIR_WRITE])
 803                         o->verify_interval = gcd(o->min_bs[DDIR_WRITE],
 804                                                         o->max_bs[DDIR_WRITE]);
 805         }
 806
 807         if (o->pre_read) {
 808                 if (o->invalidate_cache)
 809                         o->invalidate_cache = 0;
 810                 if (td_ioengine_flagged(td, FIO_PIPEIO)) {
 811                         log_info("fio: cannot pre-read files with an IO engine"
 812                                  " that isn't seekable. Pre-read disabled.\n");
 813                         ret = warnings_fatal;
 814                 }
 815         }
 816
 817         if (!o->unit_base) {
 818                 if (td_ioengine_flagged(td, FIO_BIT_BASED))
 819                         o->unit_base = 1;
 820                 else
 821                         o->unit_base = 8;
 822         }
 823
 824 #ifndef FIO_HAVE_ANY_FALLOCATE
 825         /* Platform doesn't support any fallocate so force it to none */
 826         o->fallocate_mode = FIO_FALLOCATE_NONE;
 827 #endif
 828
 829 #ifndef CONFIG_FDATASYNC
 830         if (o->fdatasync_blocks) {
 831                 log_info("fio: this platform does not support fdatasync()"
 832                          " falling back to using fsync().  Use the 'fsync'"
 833                          " option instead of 'fdatasync' to get rid of"
 834                          " this warning\n");
 835                 o->fsync_blocks = o->fdatasync_blocks;
 836                 o->fdatasync_blocks = 0;
 837                 ret = warnings_fatal;
 838         }
 839 #endif
 840
 841 #ifdef WIN32
 842         /*
 843          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 844          * so fail if we're passed those flags
 845          */
 846         if (td_ioengine_flagged(td, FIO_SYNCIO) && (o->odirect || o->sync_io)) {
 847                 log_err("fio: Windows does not support direct or non-buffered io with"
 848                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 849                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 850                 ret = 1;
 851         }
 852 #endif
 853
 854         /*
 855          * For fully compressible data, just zero them at init time.
 856          * It's faster than repeatedly filling it. For non-zero
 857          * compression, we should have refill_buffers set. Set it, unless
 858          * the job file already changed it.
 859          */
 860         if (o->compress_percentage) {
 861                 if (o->compress_percentage == 100) {
 862                         o->zero_buffers = 1;
 863                         o->compress_percentage = 0;
 864                 } else if (!fio_option_is_set(o, refill_buffers)) {
 865                         o->refill_buffers = 1;
 866                         td->flags |= TD_F_REFILL_BUFFERS;
 867                 }
 868         }
 869
 870         /*
 871          * Using a non-uniform random distribution excludes usage of
 872          * a random map
 873          */
 874         if (o->random_distribution != FIO_RAND_DIST_RANDOM)
 875                 o->norandommap = 1;
 876
 877         /*
 878          * If size is set but less than the min block size, complain
 879          */
 880         if (o->size && o->size < td_min_bs(td)) {
 881                 log_err("fio: size too small, must not be less than minimum block size: %llu < %u\n",
 882                         (unsigned long long) o->size, td_min_bs(td));
 883                 ret = 1;
 884         }
 885
 886         /*
 887          * O_ATOMIC implies O_DIRECT
 888          */
 889         if (o->oatomic)
 890                 o->odirect = 1;
 891
 892         /*
 893          * If randseed is set, that overrides randrepeat
 894          */
 895         if (fio_option_is_set(o, rand_seed))
 896                 o->rand_repeatable = 0;
 897
 898         if (td_ioengine_flagged(td, FIO_NOEXTEND) && o->file_append) {
 899                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
 900                 ret = 1;
 901         }
 902
 903         if (fio_option_is_set(o, gtod_cpu)) {
 904                 fio_gtod_init();
 905                 fio_gtod_set_cpu(o->gtod_cpu);
 906                 fio_gtod_offload = 1;
 907         }
 908
 909         td->loops = o->loops;
 910         if (!td->loops)
 911                 td->loops = 1;
 912
 913         if (o->block_error_hist && o->nr_files != 1) {
 914                 log_err("fio: block error histogram only available "
 915                         "with a single file per job, but %d files "
 916                         "provided\n", o->nr_files);
 917                 ret = 1;
 918         }
 919
 920         if (fio_option_is_set(o, clat_percentiles) &&
 921             !fio_option_is_set(o, lat_percentiles)) {
 922                 o->lat_percentiles = !o->clat_percentiles;
 923         } else if (fio_option_is_set(o, lat_percentiles) &&
 924                    !fio_option_is_set(o, clat_percentiles)) {
 925                 o->clat_percentiles = !o->lat_percentiles;
 926         } else if (fio_option_is_set(o, lat_percentiles) &&
 927                    fio_option_is_set(o, clat_percentiles) &&
 928                    o->lat_percentiles && o->clat_percentiles) {
 929                 log_err("fio: lat_percentiles and clat_percentiles are "
 930                         "mutually exclusive\n");
 931                 ret = 1;
 932         }
 933
 934         /*
 935          * Fix these up to be nsec internally
 936          */
 937         o->max_latency *= 1000ULL;
 938         o->latency_target *= 1000ULL;
 939         o->latency_window *= 1000ULL;
 940
 941         return ret;
 942 }
 943
 944 static void init_rand_file_service(struct thread_data *td)
 945 {
 946         unsigned long nranges = td->o.nr_files << FIO_FSERVICE_SHIFT;
 947         const unsigned int seed = td->rand_seeds[FIO_RAND_FILE_OFF];
 948
 949         if (td->o.file_service_type == FIO_FSERVICE_ZIPF) {
 950                 zipf_init(&td->next_file_zipf, nranges, td->zipf_theta, seed);
 951                 zipf_disable_hash(&td->next_file_zipf);
 952         } else if (td->o.file_service_type == FIO_FSERVICE_PARETO) {
 953                 pareto_init(&td->next_file_zipf, nranges, td->pareto_h, seed);
 954                 zipf_disable_hash(&td->next_file_zipf);
 955         } else if (td->o.file_service_type == FIO_FSERVICE_GAUSS) {
 956                 gauss_init(&td->next_file_gauss, nranges, td->gauss_dev, seed);
 957                 gauss_disable_hash(&td->next_file_gauss);
 958         }
 959 }
 960
 961 void td_fill_verify_state_seed(struct thread_data *td)
 962 {
 963         bool use64;
 964
 965         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
 966                 use64 = true;
 967         else
 968                 use64 = false;
 969
 970         init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF],
 971                 use64);
 972 }
 973
 974 static void td_fill_rand_seeds_internal(struct thread_data *td, bool use64)
 975 {
 976         int i;
 977
 978         /*
 979          * trimwrite is special in that we need to generate the same
 980          * offsets to get the "write after trim" effect. If we are
 981          * using bssplit to set buffer length distributions, ensure that
 982          * we seed the trim and write generators identically.
 983          */
 984         if (td_trimwrite(td)) {
 985                 init_rand_seed(&td->bsrange_state[DDIR_READ], td->rand_seeds[FIO_RAND_BS_OFF], use64);
 986                 init_rand_seed(&td->bsrange_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
 987                 init_rand_seed(&td->bsrange_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
 988         } else {
 989                 init_rand_seed(&td->bsrange_state[DDIR_READ], td->rand_seeds[FIO_RAND_BS_OFF], use64);
 990                 init_rand_seed(&td->bsrange_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
 991                 init_rand_seed(&td->bsrange_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_BS2_OFF], use64);
 992         }
 993
 994         td_fill_verify_state_seed(td);
 995         init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], false);
 996
 997         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 998                 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF], use64);
 999         else if (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM)
1000                 init_rand_file_service(td);
1001
1002         init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], use64);
1003         init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF], use64);
1004         init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY], use64);
1005         init_rand_seed(&td->poisson_state[0], td->rand_seeds[FIO_RAND_POISSON_OFF], 0);
1006         init_rand_seed(&td->poisson_state[1], td->rand_seeds[FIO_RAND_POISSON2_OFF], 0);
1007         init_rand_seed(&td->poisson_state[2], td->rand_seeds[FIO_RAND_POISSON3_OFF], 0);
1008         init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF], false);
1009         init_rand_seed(&td->zone_state, td->rand_seeds[FIO_RAND_ZONE_OFF], false);
1010
1011         if (!td_random(td))
1012                 return;
1013
1014         if (td->o.rand_repeatable)
1015                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
1016
1017         init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF], use64);
1018
1019         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1020                 struct frand_state *s = &td->seq_rand_state[i];
1021
1022                 init_rand_seed(s, td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], false);
1023         }
1024 }
1025
1026 void td_fill_rand_seeds(struct thread_data *td)
1027 {
1028         bool use64;
1029
1030         if (td->o.allrand_repeatable) {
1031                 unsigned int i;
1032
1033                 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
1034                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
1035                                 + i;
1036         }
1037
1038         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
1039                 use64 = true;
1040         else
1041                 use64 = false;
1042
1043         td_fill_rand_seeds_internal(td, use64);
1044
1045         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF], use64);
1046         frand_copy(&td->buf_state_prev, &td->buf_state);
1047 }
1048
1049 /*
1050  * Initializes the ioengine configured for a job, if it has not been done so
1051  * already.
1052  */
1053 int ioengine_load(struct thread_data *td)
1054 {
1055         if (!td->o.ioengine) {
1056                 log_err("fio: internal fault, no IO engine specified\n");
1057                 return 1;
1058         }
1059
1060         if (td->io_ops) {
1061                 /* An engine is loaded, but the requested ioengine
1062                  * may have changed.
1063                  */
1064                 if (!strcmp(td->io_ops->name, td->o.ioengine)) {
1065                         /* The right engine is already loaded */
1066                         return 0;
1067                 }
1068
1069                 /* Unload the old engine. */
1070                 free_ioengine(td);
1071         }
1072
1073         td->io_ops = load_ioengine(td);
1074         if (!td->io_ops) {
1075                 log_err("fio: failed to load engine\n");
1076                 return 1;
1077         }
1078
1079         if (td->io_ops->option_struct_size && td->io_ops->options) {
1080                 /*
1081                  * In cases where td->eo is set, clone it for a child thread.
1082                  * This requires that the parent thread has the same ioengine,
1083                  * but that requirement must be enforced by the code which
1084                  * cloned the thread.
1085                  */
1086                 void *origeo = td->eo;
1087                 /*
1088                  * Otherwise use the default thread options.
1089                  */
1090                 if (!origeo && td != &def_thread && def_thread.eo &&
1091                     def_thread.io_ops->options == td->io_ops->options)
1092                         origeo = def_thread.eo;
1093
1094                 options_init(td->io_ops->options);
1095                 td->eo = malloc(td->io_ops->option_struct_size);
1096                 /*
1097                  * Use the default thread as an option template if this uses the
1098                  * same options structure and there are non-default options
1099                  * used.
1100                  */
1101                 if (origeo) {
1102                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
1103                         options_mem_dupe(td->io_ops->options, td->eo);
1104                 } else {
1105                         memset(td->eo, 0, td->io_ops->option_struct_size);
1106                         fill_default_options(td->eo, td->io_ops->options);
1107                 }
1108                 *(struct thread_data **)td->eo = td;
1109         }
1110
1111         if (td->o.odirect)
1112                 td->io_ops->flags |= FIO_RAWIO;
1113
1114         td_set_ioengine_flags(td);
1115         return 0;
1116 }
1117
1118 static void init_flags(struct thread_data *td)
1119 {
1120         struct thread_options *o = &td->o;
1121         int i;
1122
1123         if (o->verify_backlog)
1124                 td->flags |= TD_F_VER_BACKLOG;
1125         if (o->trim_backlog)
1126                 td->flags |= TD_F_TRIM_BACKLOG;
1127         if (o->read_iolog_file)
1128                 td->flags |= TD_F_READ_IOLOG;
1129         if (o->refill_buffers)
1130                 td->flags |= TD_F_REFILL_BUFFERS;
1131         /*
1132          * Always scramble buffers if asked to
1133          */
1134         if (o->scramble_buffers && fio_option_is_set(o, scramble_buffers))
1135                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1136         /*
1137          * But also scramble buffers, unless we were explicitly asked
1138          * to zero them.
1139          */
1140         if (o->scramble_buffers && !(o->zero_buffers &&
1141             fio_option_is_set(o, zero_buffers)))
1142                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1143         if (o->verify != VERIFY_NONE)
1144                 td->flags |= TD_F_VER_NONE;
1145
1146         if (o->verify_async || o->io_submit_mode == IO_MODE_OFFLOAD)
1147                 td->flags |= TD_F_NEED_LOCK;
1148
1149         if (o->mem_type == MEM_CUDA_MALLOC)
1150                 td->flags &= ~TD_F_SCRAMBLE_BUFFERS;
1151
1152         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1153                 if (option_check_rate(td, i)) {
1154                         td->flags |= TD_F_CHECK_RATE;
1155                         break;
1156                 }
1157         }
1158 }
1159
1160 static int setup_random_seeds(struct thread_data *td)
1161 {
1162         unsigned long seed;
1163         unsigned int i;
1164
1165         if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed)) {
1166                 int ret = init_random_seeds(td->rand_seeds, sizeof(td->rand_seeds));
1167                 if (!ret)
1168                         td_fill_rand_seeds(td);
1169                 return ret;
1170         }
1171
1172         seed = td->o.rand_seed;
1173         for (i = 0; i < 4; i++)
1174                 seed *= 0x9e370001UL;
1175
1176         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
1177                 td->rand_seeds[i] = seed * td->thread_number + i;
1178                 seed *= 0x9e370001UL;
1179         }
1180
1181         td_fill_rand_seeds(td);
1182         return 0;
1183 }
1184
1185 enum {
1186         FPRE_NONE = 0,
1187         FPRE_JOBNAME,
1188         FPRE_JOBNUM,
1189         FPRE_FILENUM
1190 };
1191
1192 static struct fpre_keyword {
1193         const char *keyword;
1194         size_t strlen;
1195         int key;
1196 } fpre_keywords[] = {
1197         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
1198         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
1199         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
1200         { .keyword = NULL, },
1201         };
1202
1203 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
1204                            const char *jobname, int jobnum, int filenum)
1205 {
1206         struct fpre_keyword *f;
1207         char copy[PATH_MAX];
1208         size_t dst_left = PATH_MAX - 1;
1209
1210         if (!o->filename_format || !strlen(o->filename_format)) {
1211                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
1212                 return buf;
1213         }
1214
1215         for (f = &fpre_keywords[0]; f->keyword; f++)
1216                 f->strlen = strlen(f->keyword);
1217
1218         buf[buf_size - 1] = '\0';
1219         strncpy(buf, o->filename_format, buf_size - 1);
1220
1221         memset(copy, 0, sizeof(copy));
1222         for (f = &fpre_keywords[0]; f->keyword; f++) {
1223                 do {
1224                         size_t pre_len, post_start = 0;
1225                         char *str, *dst = copy;
1226
1227                         str = strcasestr(buf, f->keyword);
1228                         if (!str)
1229                                 break;
1230
1231                         pre_len = str - buf;
1232                         if (strlen(str) != f->strlen)
1233                                 post_start = pre_len + f->strlen;
1234
1235                         if (pre_len) {
1236                                 strncpy(dst, buf, pre_len);
1237                                 dst += pre_len;
1238                                 dst_left -= pre_len;
1239                         }
1240
1241                         switch (f->key) {
1242                         case FPRE_JOBNAME: {
1243                                 int ret;
1244
1245                                 ret = snprintf(dst, dst_left, "%s", jobname);
1246                                 if (ret < 0)
1247                                         break;
1248                                 else if (ret > dst_left) {
1249                                         log_err("fio: truncated filename\n");
1250                                         dst += dst_left;
1251                                         dst_left = 0;
1252                                 } else {
1253                                         dst += ret;
1254                                         dst_left -= ret;
1255                                 }
1256                                 break;
1257                                 }
1258                         case FPRE_JOBNUM: {
1259                                 int ret;
1260
1261                                 ret = snprintf(dst, dst_left, "%d", jobnum);
1262                                 if (ret < 0)
1263                                         break;
1264                                 else if (ret > dst_left) {
1265                                         log_err("fio: truncated filename\n");
1266                                         dst += dst_left;
1267                                         dst_left = 0;
1268                                 } else {
1269                                         dst += ret;
1270                                         dst_left -= ret;
1271                                 }
1272                                 break;
1273                                 }
1274                         case FPRE_FILENUM: {
1275                                 int ret;
1276
1277                                 ret = snprintf(dst, dst_left, "%d", filenum);
1278                                 if (ret < 0)
1279                                         break;
1280                                 else if (ret > dst_left) {
1281                                         log_err("fio: truncated filename\n");
1282                                         dst += dst_left;
1283                                         dst_left = 0;
1284                                 } else {
1285                                         dst += ret;
1286                                         dst_left -= ret;
1287                                 }
1288                                 break;
1289                                 }
1290                         default:
1291                                 assert(0);
1292                                 break;
1293                         }
1294
1295                         if (post_start)
1296                                 strncpy(dst, buf + post_start, dst_left);
1297
1298                         strncpy(buf, copy, buf_size - 1);
1299                 } while (1);
1300         }
1301
1302         return buf;
1303 }
1304
1305 bool parse_dryrun(void)
1306 {
1307         return dump_cmdline || parse_only;
1308 }
1309
1310 static void gen_log_name(char *name, size_t size, const char *logtype,
1311                          const char *logname, unsigned int num,
1312                          const char *suf, int per_job)
1313 {
1314         if (per_job)
1315                 snprintf(name, size, "%s_%s.%d.%s", logname, logtype, num, suf);
1316         else
1317                 snprintf(name, size, "%s_%s.%s", logname, logtype, suf);
1318 }
1319
1320 static int check_waitees(char *waitee)
1321 {
1322         struct thread_data *td;
1323         int i, ret = 0;
1324
1325         for_each_td(td, i) {
1326                 if (td->subjob_number)
1327                         continue;
1328
1329                 ret += !strcmp(td->o.name, waitee);
1330         }
1331
1332         return ret;
1333 }
1334
1335 static bool wait_for_ok(const char *jobname, struct thread_options *o)
1336 {
1337         int nw;
1338
1339         if (!o->wait_for)
1340                 return true;
1341
1342         if (!strcmp(jobname, o->wait_for)) {
1343                 log_err("%s: a job cannot wait for itself (wait_for=%s).\n",
1344                                 jobname, o->wait_for);
1345                 return false;
1346         }
1347
1348         if (!(nw = check_waitees(o->wait_for))) {
1349                 log_err("%s: waitee job %s unknown.\n", jobname, o->wait_for);
1350                 return false;
1351         }
1352
1353         if (nw > 1) {
1354                 log_err("%s: multiple waitees %s found,\n"
1355                         "please avoid duplicates when using wait_for option.\n",
1356                                 jobname, o->wait_for);
1357                 return false;
1358         }
1359
1360         return true;
1361 }
1362
1363 /*
1364  * Adds a job to the list of things todo. Sanitizes the various options
1365  * to make sure we don't have conflicts, and initializes various
1366  * members of td.
1367  */
1368 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1369                    int recursed, int client_type)
1370 {
1371         unsigned int i;
1372         char fname[PATH_MAX];
1373         int numjobs, file_alloced;
1374         struct thread_options *o = &td->o;
1375         char logname[PATH_MAX + 32];
1376
1377         /*
1378          * the def_thread is just for options, it's not a real job
1379          */
1380         if (td == &def_thread)
1381                 return 0;
1382
1383         init_flags(td);
1384
1385         /*
1386          * if we are just dumping the output command line, don't add the job
1387          */
1388         if (parse_dryrun()) {
1389                 put_job(td);
1390                 return 0;
1391         }
1392
1393         td->client_type = client_type;
1394
1395         if (profile_td_init(td))
1396                 goto err;
1397
1398         if (ioengine_load(td))
1399                 goto err;
1400
1401         file_alloced = 0;
1402         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1403                 file_alloced = 1;
1404
1405                 if (o->nr_files == 1 && exists_and_not_regfile(jobname))
1406                         add_file(td, jobname, job_add_num, 0);
1407                 else {
1408                         for (i = 0; i < o->nr_files; i++)
1409                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1410                 }
1411         }
1412
1413         if (fixup_options(td))
1414                 goto err;
1415
1416         /*
1417          * Belongs to fixup_options, but o->name is not necessarily set as yet
1418          */
1419         if (!wait_for_ok(jobname, o))
1420                 goto err;
1421
1422         flow_init_job(td);
1423
1424         /*
1425          * IO engines only need this for option callbacks, and the address may
1426          * change in subprocesses.
1427          */
1428         if (td->eo)
1429                 *(struct thread_data **)td->eo = NULL;
1430
1431         if (td_ioengine_flagged(td, FIO_DISKLESSIO)) {
1432                 struct fio_file *f;
1433
1434                 for_each_file(td, f, i)
1435                         f->real_file_size = -1ULL;
1436         }
1437
1438         td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
1439
1440         td->ts.clat_percentiles = o->clat_percentiles;
1441         td->ts.lat_percentiles = o->lat_percentiles;
1442         td->ts.percentile_precision = o->percentile_precision;
1443         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1444
1445         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1446                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1447                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1448                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1449                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1450                 td->ts.iops_stat[i].min_val = ULONG_MAX;
1451         }
1452         td->ddir_seq_nr = o->ddir_seq_nr;
1453
1454         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1455                 prev_group_jobs = 0;
1456                 groupid++;
1457                 if (groupid == INT_MAX) {
1458                         log_err("fio: too many groups defined\n");
1459                         goto err;
1460                 }
1461         }
1462
1463         td->groupid = groupid;
1464         prev_group_jobs++;
1465
1466         if (setup_random_seeds(td)) {
1467                 td_verror(td, errno, "setup_random_seeds");
1468                 goto err;
1469         }
1470
1471         if (setup_rate(td))
1472                 goto err;
1473
1474         if (o->write_lat_log) {
1475                 struct log_params p = {
1476                         .td = td,
1477                         .avg_msec = o->log_avg_msec,
1478                         .hist_msec = o->log_hist_msec,
1479                         .hist_coarseness = o->log_hist_coarseness,
1480                         .log_type = IO_LOG_TYPE_LAT,
1481                         .log_offset = o->log_offset,
1482                         .log_gz = o->log_gz,
1483                         .log_gz_store = o->log_gz_store,
1484                 };
1485                 const char *pre = o->lat_log_file ? o->lat_log_file : o->name;
1486                 const char *suf;
1487
1488                 if (p.log_gz_store)
1489                         suf = "log.fz";
1490                 else
1491                         suf = "log";
1492
1493                 gen_log_name(logname, sizeof(logname), "lat", pre,
1494                                 td->thread_number, suf, o->per_job_logs);
1495                 setup_log(&td->lat_log, &p, logname);
1496
1497                 gen_log_name(logname, sizeof(logname), "slat", pre,
1498                                 td->thread_number, suf, o->per_job_logs);
1499                 setup_log(&td->slat_log, &p, logname);
1500
1501                 gen_log_name(logname, sizeof(logname), "clat", pre,
1502                                 td->thread_number, suf, o->per_job_logs);
1503                 setup_log(&td->clat_log, &p, logname);
1504         }
1505
1506         if (o->write_hist_log) {
1507                 struct log_params p = {
1508                         .td = td,
1509                         .avg_msec = o->log_avg_msec,
1510                         .hist_msec = o->log_hist_msec,
1511                         .hist_coarseness = o->log_hist_coarseness,
1512                         .log_type = IO_LOG_TYPE_HIST,
1513                         .log_offset = o->log_offset,
1514                         .log_gz = o->log_gz,
1515                         .log_gz_store = o->log_gz_store,
1516                 };
1517                 const char *pre = o->hist_log_file ? o->hist_log_file : o->name;
1518                 const char *suf;
1519
1520 #ifndef CONFIG_ZLIB
1521                 if (td->client_type) {
1522                         log_err("fio: --write_hist_log requires zlib in client/server mode\n");
1523                         goto err;
1524                 }
1525 #endif
1526
1527                 if (p.log_gz_store)
1528                         suf = "log.fz";
1529                 else
1530                         suf = "log";
1531
1532                 gen_log_name(logname, sizeof(logname), "clat_hist", pre,
1533                                 td->thread_number, suf, o->per_job_logs);
1534                 setup_log(&td->clat_hist_log, &p, logname);
1535         }
1536
1537         if (o->write_bw_log) {
1538                 struct log_params p = {
1539                         .td = td,
1540                         .avg_msec = o->log_avg_msec,
1541                         .hist_msec = o->log_hist_msec,
1542                         .hist_coarseness = o->log_hist_coarseness,
1543                         .log_type = IO_LOG_TYPE_BW,
1544                         .log_offset = o->log_offset,
1545                         .log_gz = o->log_gz,
1546                         .log_gz_store = o->log_gz_store,
1547                 };
1548                 const char *pre = o->bw_log_file ? o->bw_log_file : o->name;
1549                 const char *suf;
1550
1551                 if (fio_option_is_set(o, bw_avg_time))
1552                         p.avg_msec = min(o->log_avg_msec, o->bw_avg_time);
1553                 else
1554                         o->bw_avg_time = p.avg_msec;
1555
1556                 p.hist_msec = o->log_hist_msec;
1557                 p.hist_coarseness = o->log_hist_coarseness;
1558
1559                 if (p.log_gz_store)
1560                         suf = "log.fz";
1561                 else
1562                         suf = "log";
1563
1564                 gen_log_name(logname, sizeof(logname), "bw", pre,
1565                                 td->thread_number, suf, o->per_job_logs);
1566                 setup_log(&td->bw_log, &p, logname);
1567         }
1568         if (o->write_iops_log) {
1569                 struct log_params p = {
1570                         .td = td,
1571                         .avg_msec = o->log_avg_msec,
1572                         .hist_msec = o->log_hist_msec,
1573                         .hist_coarseness = o->log_hist_coarseness,
1574                         .log_type = IO_LOG_TYPE_IOPS,
1575                         .log_offset = o->log_offset,
1576                         .log_gz = o->log_gz,
1577                         .log_gz_store = o->log_gz_store,
1578                 };
1579                 const char *pre = o->iops_log_file ? o->iops_log_file : o->name;
1580                 const char *suf;
1581
1582                 if (fio_option_is_set(o, iops_avg_time))
1583                         p.avg_msec = min(o->log_avg_msec, o->iops_avg_time);
1584                 else
1585                         o->iops_avg_time = p.avg_msec;
1586
1587                 p.hist_msec = o->log_hist_msec;
1588                 p.hist_coarseness = o->log_hist_coarseness;
1589
1590                 if (p.log_gz_store)
1591                         suf = "log.fz";
1592                 else
1593                         suf = "log";
1594
1595                 gen_log_name(logname, sizeof(logname), "iops", pre,
1596                                 td->thread_number, suf, o->per_job_logs);
1597                 setup_log(&td->iops_log, &p, logname);
1598         }
1599
1600         if (!o->name)
1601                 o->name = strdup(jobname);
1602
1603         if (output_format & FIO_OUTPUT_NORMAL) {
1604                 if (!job_add_num) {
1605                         if (is_backend && !recursed)
1606                                 fio_server_send_add_job(td);
1607
1608                         if (!td_ioengine_flagged(td, FIO_NOIO)) {
1609                                 char *c1, *c2, *c3, *c4;
1610                                 char *c5 = NULL, *c6 = NULL;
1611                                 int i2p = is_power_of_2(o->kb_base);
1612
1613                                 c1 = num2str(o->min_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1614                                 c2 = num2str(o->max_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1615                                 c3 = num2str(o->min_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1616                                 c4 = num2str(o->max_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1617
1618                                 if (!o->bs_is_seq_rand) {
1619                                         c5 = num2str(o->min_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1620                                         c6 = num2str(o->max_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1621                                 }
1622
1623                                 log_info("%s: (g=%d): rw=%s, ", td->o.name,
1624                                                         td->groupid,
1625                                                         ddir_str(o->td_ddir));
1626
1627                                 if (o->bs_is_seq_rand)
1628                                         log_info("bs=(R) %s-%s, (W) %s-%s, bs_is_seq_rand, ",
1629                                                         c1, c2, c3, c4);
1630                                 else
1631                                         log_info("bs=(R) %s-%s, (W) %s-%s, (T) %s-%s, ",
1632                                                         c1, c2, c3, c4, c5, c6);
1633
1634                                 log_info("ioengine=%s, iodepth=%u\n",
1635                                                 td->io_ops->name, o->iodepth);
1636
1637                                 free(c1);
1638                                 free(c2);
1639                                 free(c3);
1640                                 free(c4);
1641                                 free(c5);
1642                                 free(c6);
1643                         }
1644                 } else if (job_add_num == 1)
1645                         log_info("...\n");
1646         }
1647
1648         if (td_steadystate_init(td))
1649                 goto err;
1650
1651         /*
1652          * recurse add identical jobs, clear numjobs and stonewall options
1653          * as they don't apply to sub-jobs
1654          */
1655         numjobs = o->numjobs;
1656         while (--numjobs) {
1657                 struct thread_data *td_new = get_new_job(false, td, true, jobname);
1658
1659                 if (!td_new)
1660                         goto err;
1661
1662                 td_new->o.numjobs = 1;
1663                 td_new->o.stonewall = 0;
1664                 td_new->o.new_group = 0;
1665                 td_new->subjob_number = numjobs;
1666                 td_new->o.ss_dur = o->ss_dur * 1000000l;
1667                 td_new->o.ss_limit = o->ss_limit;
1668
1669                 if (file_alloced) {
1670                         if (td_new->files) {
1671                                 struct fio_file *f;
1672                                 for_each_file(td_new, f, i) {
1673                                         if (f->file_name)
1674                                                 sfree(f->file_name);
1675                                         sfree(f);
1676                                 }
1677                                 free(td_new->files);
1678                                 td_new->files = NULL;
1679                         }
1680                         td_new->files_index = 0;
1681                         td_new->files_size = 0;
1682                         if (td_new->o.filename) {
1683                                 free(td_new->o.filename);
1684                                 td_new->o.filename = NULL;
1685                         }
1686                 }
1687
1688                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1689                         goto err;
1690         }
1691
1692         return 0;
1693 err:
1694         put_job(td);
1695         return -1;
1696 }
1697
1698 /*
1699  * Parse as if 'o' was a command line
1700  */
1701 void add_job_opts(const char **o, int client_type)
1702 {
1703         struct thread_data *td, *td_parent;
1704         int i, in_global = 1;
1705         char jobname[32];
1706
1707         i = 0;
1708         td_parent = td = NULL;
1709         while (o[i]) {
1710                 if (!strncmp(o[i], "name", 4)) {
1711                         in_global = 0;
1712                         if (td)
1713                                 add_job(td, jobname, 0, 0, client_type);
1714                         td = NULL;
1715                         sprintf(jobname, "%s", o[i] + 5);
1716                 }
1717                 if (in_global && !td_parent)
1718                         td_parent = get_new_job(true, &def_thread, false, jobname);
1719                 else if (!in_global && !td) {
1720                         if (!td_parent)
1721                                 td_parent = &def_thread;
1722                         td = get_new_job(false, td_parent, false, jobname);
1723                 }
1724                 if (in_global)
1725                         fio_options_parse(td_parent, (char **) &o[i], 1);
1726                 else
1727                         fio_options_parse(td, (char **) &o[i], 1);
1728                 i++;
1729         }
1730
1731         if (td)
1732                 add_job(td, jobname, 0, 0, client_type);
1733 }
1734
1735 static int skip_this_section(const char *name)
1736 {
1737         int i;
1738
1739         if (!nr_job_sections)
1740                 return 0;
1741         if (!strncmp(name, "global", 6))
1742                 return 0;
1743
1744         for (i = 0; i < nr_job_sections; i++)
1745                 if (!strcmp(job_sections[i], name))
1746                         return 0;
1747
1748         return 1;
1749 }
1750
1751 static int is_empty_or_comment(char *line)
1752 {
1753         unsigned int i;
1754
1755         for (i = 0; i < strlen(line); i++) {
1756                 if (line[i] == ';')
1757                         return 1;
1758                 if (line[i] == '#')
1759                         return 1;
1760                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1761                         return 0;
1762         }
1763
1764         return 1;
1765 }
1766
1767 /*
1768  * This is our [ini] type file parser.
1769  */
1770 static int __parse_jobs_ini(struct thread_data *td,
1771                 char *file, int is_buf, int stonewall_flag, int type,
1772                 int nested, char *name, char ***popts, int *aopts, int *nopts)
1773 {
1774         bool global = false;
1775         char *string;
1776         FILE *f;
1777         char *p;
1778         int ret = 0, stonewall;
1779         int first_sect = 1;
1780         int skip_fgets = 0;
1781         int inside_skip = 0;
1782         char **opts;
1783         int i, alloc_opts, num_opts;
1784
1785         dprint(FD_PARSE, "Parsing ini file %s\n", file);
1786         assert(td || !nested);
1787
1788         if (is_buf)
1789                 f = NULL;
1790         else {
1791                 if (!strcmp(file, "-"))
1792                         f = stdin;
1793                 else
1794                         f = fopen(file, "r");
1795
1796                 if (!f) {
1797                         int __err = errno;
1798
1799                         log_err("fio: unable to open '%s' job file\n", file);
1800                         if (td)
1801                                 td_verror(td, __err, "job file open");
1802                         return 1;
1803                 }
1804         }
1805
1806         string = malloc(4096);
1807
1808         /*
1809          * it's really 256 + small bit, 280 should suffice
1810          */
1811         if (!nested) {
1812                 name = malloc(280);
1813                 memset(name, 0, 280);
1814         }
1815
1816         opts = NULL;
1817         if (nested && popts) {
1818                 opts = *popts;
1819                 alloc_opts = *aopts;
1820                 num_opts = *nopts;
1821         }
1822
1823         if (!opts) {
1824                 alloc_opts = 8;
1825                 opts = malloc(sizeof(char *) * alloc_opts);
1826                 num_opts = 0;
1827         }
1828
1829         stonewall = stonewall_flag;
1830         do {
1831                 /*
1832                  * if skip_fgets is set, we already have loaded a line we
1833                  * haven't handled.
1834                  */
1835                 if (!skip_fgets) {
1836                         if (is_buf)
1837                                 p = strsep(&file, "\n");
1838                         else
1839                                 p = fgets(string, 4096, f);
1840                         if (!p)
1841                                 break;
1842                 }
1843
1844                 skip_fgets = 0;
1845                 strip_blank_front(&p);
1846                 strip_blank_end(p);
1847
1848                 dprint(FD_PARSE, "%s\n", p);
1849                 if (is_empty_or_comment(p))
1850                         continue;
1851
1852                 if (!nested) {
1853                         if (sscanf(p, "[%255[^\n]]", name) != 1) {
1854                                 if (inside_skip)
1855                                         continue;
1856
1857                                 log_err("fio: option <%s> outside of "
1858                                         "[] job section\n", p);
1859                                 ret = 1;
1860                                 break;
1861                         }
1862
1863                         name[strlen(name) - 1] = '\0';
1864
1865                         if (skip_this_section(name)) {
1866                                 inside_skip = 1;
1867                                 continue;
1868                         } else
1869                                 inside_skip = 0;
1870
1871                         dprint(FD_PARSE, "Parsing section [%s]\n", name);
1872
1873                         global = !strncmp(name, "global", 6);
1874
1875                         if (dump_cmdline) {
1876                                 if (first_sect)
1877                                         log_info("fio ");
1878                                 if (!global)
1879                                         log_info("--name=%s ", name);
1880                                 first_sect = 0;
1881                         }
1882
1883                         td = get_new_job(global, &def_thread, false, name);
1884                         if (!td) {
1885                                 ret = 1;
1886                                 break;
1887                         }
1888
1889                         /*
1890                          * Separate multiple job files by a stonewall
1891                          */
1892                         if (!global && stonewall) {
1893                                 td->o.stonewall = stonewall;
1894                                 stonewall = 0;
1895                         }
1896
1897                         num_opts = 0;
1898                         memset(opts, 0, alloc_opts * sizeof(char *));
1899                 }
1900                 else
1901                         skip_fgets = 1;
1902
1903                 while (1) {
1904                         if (!skip_fgets) {
1905                                 if (is_buf)
1906                                         p = strsep(&file, "\n");
1907                                 else
1908                                         p = fgets(string, 4096, f);
1909                                 if (!p)
1910                                         break;
1911                                 dprint(FD_PARSE, "%s", p);
1912                         }
1913                         else
1914                                 skip_fgets = 0;
1915
1916                         if (is_empty_or_comment(p))
1917                                 continue;
1918
1919                         strip_blank_front(&p);
1920
1921                         /*
1922                          * new section, break out and make sure we don't
1923                          * fgets() a new line at the top.
1924                          */
1925                         if (p[0] == '[') {
1926                                 if (nested) {
1927                                         log_err("No new sections in included files\n");
1928                                         return 1;
1929                                 }
1930
1931                                 skip_fgets = 1;
1932                                 break;
1933                         }
1934
1935                         strip_blank_end(p);
1936
1937                         if (!strncmp(p, "include", strlen("include"))) {
1938                                 char *filename = p + strlen("include") + 1,
1939                                         *ts, *full_fn = NULL;
1940
1941                                 /*
1942                                  * Allow for the include filename
1943                                  * specification to be relative.
1944                                  */
1945                                 if (access(filename, F_OK) &&
1946                                     (ts = strrchr(file, '/'))) {
1947                                         int len = ts - file +
1948                                                 strlen(filename) + 2;
1949
1950                                         if (!(full_fn = calloc(1, len))) {
1951                                                 ret = ENOMEM;
1952                                                 break;
1953                                         }
1954
1955                                         strncpy(full_fn,
1956                                                 file, (ts - file) + 1);
1957                                         strncpy(full_fn + (ts - file) + 1,
1958                                                 filename, strlen(filename));
1959                                         full_fn[len - 1] = 0;
1960                                         filename = full_fn;
1961                                 }
1962
1963                                 ret = __parse_jobs_ini(td, filename, is_buf,
1964                                                        stonewall_flag, type, 1,
1965                                                        name, &opts,
1966                                                        &alloc_opts, &num_opts);
1967
1968                                 if (ret) {
1969                                         log_err("Error %d while parsing "
1970                                                 "include file %s\n",
1971                                                 ret, filename);
1972                                 }
1973
1974                                 if (full_fn)
1975                                         free(full_fn);
1976
1977                                 if (ret)
1978                                         break;
1979
1980                                 continue;
1981                         }
1982
1983                         if (num_opts == alloc_opts) {
1984                                 alloc_opts <<= 1;
1985                                 opts = realloc(opts,
1986                                                 alloc_opts * sizeof(char *));
1987                         }
1988
1989                         opts[num_opts] = strdup(p);
1990                         num_opts++;
1991                 }
1992
1993                 if (nested) {
1994                         *popts = opts;
1995                         *aopts = alloc_opts;
1996                         *nopts = num_opts;
1997                         goto out;
1998                 }
1999
2000                 ret = fio_options_parse(td, opts, num_opts);
2001                 if (!ret) {
2002                         if (dump_cmdline)
2003                                 dump_opt_list(td);
2004
2005                         ret = add_job(td, name, 0, 0, type);
2006                 } else {
2007                         log_err("fio: job %s dropped\n", name);
2008                         put_job(td);
2009                 }
2010
2011                 for (i = 0; i < num_opts; i++)
2012                         free(opts[i]);
2013                 num_opts = 0;
2014         } while (!ret);
2015
2016         if (dump_cmdline)
2017                 log_info("\n");
2018
2019         i = 0;
2020         while (i < nr_job_sections) {
2021                 free(job_sections[i]);
2022                 i++;
2023         }
2024
2025         free(opts);
2026 out:
2027         free(string);
2028         if (!nested)
2029                 free(name);
2030         if (!is_buf && f != stdin)
2031                 fclose(f);
2032         return ret;
2033 }
2034
2035 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
2036 {
2037         return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
2038                         0, NULL, NULL, NULL, NULL);
2039 }
2040
2041 static int fill_def_thread(void)
2042 {
2043         memset(&def_thread, 0, sizeof(def_thread));
2044         INIT_FLIST_HEAD(&def_thread.opt_list);
2045
2046         fio_getaffinity(getpid(), &def_thread.o.cpumask);
2047         def_thread.o.error_dump = 1;
2048
2049         /*
2050          * fill default options
2051          */
2052         fio_fill_default_options(&def_thread);
2053         return 0;
2054 }
2055
2056 static void show_debug_categories(void)
2057 {
2058 #ifdef FIO_INC_DEBUG
2059         struct debug_level *dl = &debug_levels[0];
2060         int curlen, first = 1;
2061
2062         curlen = 0;
2063         while (dl->name) {
2064                 int has_next = (dl + 1)->name != NULL;
2065
2066                 if (first || curlen + strlen(dl->name) >= 80) {
2067                         if (!first) {
2068                                 printf("\n");
2069                                 curlen = 0;
2070                         }
2071                         curlen += printf("\t\t\t%s", dl->name);
2072                         curlen += 3 * (8 - 1);
2073                         if (has_next)
2074                                 curlen += printf(",");
2075                 } else {
2076                         curlen += printf("%s", dl->name);
2077                         if (has_next)
2078                                 curlen += printf(",");
2079                 }
2080                 dl++;
2081                 first = 0;
2082         }
2083         printf("\n");
2084 #endif
2085 }
2086
2087 /*
2088  * Following options aren't printed by usage().
2089  * --append-terse - Equivalent to --output-format=terse, see f6a7df53.
2090  * --latency-log - Deprecated option.
2091  */
2092 static void usage(const char *name)
2093 {
2094         printf("%s\n", fio_version_string);
2095         printf("%s [options] [job options] <job file(s)>\n", name);
2096         printf("  --debug=options\tEnable debug logging. May be one/more of:\n");
2097         show_debug_categories();
2098         printf("  --parse-only\t\tParse options only, don't start any IO\n");
2099         printf("  --output\t\tWrite output to file\n");
2100         printf("  --bandwidth-log\tGenerate aggregate bandwidth logs\n");
2101         printf("  --minimal\t\tMinimal (terse) output\n");
2102         printf("  --output-format=type\tOutput format (terse,json,json+,normal)\n");
2103         printf("  --terse-version=type\tSet terse version output format"
2104                 " (default 3, or 2 or 4)\n");
2105         printf("  --version\t\tPrint version info and exit\n");
2106         printf("  --help\t\tPrint this page\n");
2107         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
2108         printf("  --crctest=[type]\tTest speed of checksum functions\n");
2109         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
2110                 " them\n");
2111         printf("  --enghelp=engine\tPrint ioengine help, or list"
2112                 " available ioengines\n");
2113         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
2114                 " cmd\n");
2115         printf("  --showcmd\t\tTurn a job file into command line options\n");
2116         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
2117         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
2118         printf("  --eta-newline=time\tForce a new line for every 'time'");
2119         printf(" period passed\n");
2120         printf("  --status-interval=t\tForce full status dump every");
2121         printf(" 't' period passed\n");
2122         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
2123                 " writes\n");
2124         printf("  --section=name\tOnly run specified section in job file,"
2125                 " multiple sections can be specified\n");
2126         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
2127                 " (def 16384)\n");
2128         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
2129         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
2130         printf("  --server=args\t\tStart a backend fio server\n");
2131         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
2132         printf("  --client=hostname\tTalk to remote backend(s) fio server at hostname\n");
2133         printf("  --remote-config=file\tTell fio server to load this local job file\n");
2134         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
2135                 "\t\t\t(option=system,percpu) or run unit work\n"
2136                 "\t\t\tcalibration only (option=calibrate)\n");
2137 #ifdef CONFIG_ZLIB
2138         printf("  --inflate-log=log\tInflate and output compressed log\n");
2139 #endif
2140         printf("  --trigger-file=file\tExecute trigger cmd when file exists\n");
2141         printf("  --trigger-timeout=t\tExecute trigger at this time\n");
2142         printf("  --trigger=cmd\t\tSet this command as local trigger\n");
2143         printf("  --trigger-remote=cmd\tSet this command as remote trigger\n");
2144         printf("  --aux-path=path\tUse this path for fio state generated files\n");
2145         printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
2146         printf("\n                   Jens Axboe <jaxboe@fusionio.com>");
2147         printf("\n                   Jens Axboe <axboe@fb.com>\n");
2148 }
2149
2150 #ifdef FIO_INC_DEBUG
2151 struct debug_level debug_levels[] = {
2152         { .name = "process",
2153           .help = "Process creation/exit logging",
2154           .shift = FD_PROCESS,
2155         },
2156         { .name = "file",
2157           .help = "File related action logging",
2158           .shift = FD_FILE,
2159         },
2160         { .name = "io",
2161           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
2162           .shift = FD_IO,
2163         },
2164         { .name = "mem",
2165           .help = "Memory allocation/freeing logging",
2166           .shift = FD_MEM,
2167         },
2168         { .name = "blktrace",
2169           .help = "blktrace action logging",
2170           .shift = FD_BLKTRACE,
2171         },
2172         { .name = "verify",
2173           .help = "IO verification action logging",
2174           .shift = FD_VERIFY,
2175         },
2176         { .name = "random",
2177           .help = "Random generation logging",
2178           .shift = FD_RANDOM,
2179         },
2180         { .name = "parse",
2181           .help = "Parser logging",
2182           .shift = FD_PARSE,
2183         },
2184         { .name = "diskutil",
2185           .help = "Disk utility logging actions",
2186           .shift = FD_DISKUTIL,
2187         },
2188         { .name = "job",
2189           .help = "Logging related to creating/destroying jobs",
2190           .shift = FD_JOB,
2191         },
2192         { .name = "mutex",
2193           .help = "Mutex logging",
2194           .shift = FD_MUTEX
2195         },
2196         { .name = "profile",
2197           .help = "Logging related to profiles",
2198           .shift = FD_PROFILE,
2199         },
2200         { .name = "time",
2201           .help = "Logging related to time keeping functions",
2202           .shift = FD_TIME,
2203         },
2204         { .name = "net",
2205           .help = "Network logging",
2206           .shift = FD_NET,
2207         },
2208         { .name = "rate",
2209           .help = "Rate logging",
2210           .shift = FD_RATE,
2211         },
2212         { .name = "compress",
2213           .help = "Log compression logging",
2214           .shift = FD_COMPRESS,
2215         },
2216         { .name = "steadystate",
2217           .help = "Steady state detection logging",
2218           .shift = FD_STEADYSTATE,
2219         },
2220         { .name = "helperthread",
2221           .help = "Helper thread logging",
2222           .shift = FD_HELPERTHREAD,
2223         },
2224         { .name = NULL, },
2225 };
2226
2227 static int set_debug(const char *string)
2228 {
2229         struct debug_level *dl;
2230         char *p = (char *) string;
2231         char *opt;
2232         int i;
2233
2234         if (!string)
2235                 return 0;
2236
2237         if (!strcmp(string, "?") || !strcmp(string, "help")) {
2238                 log_info("fio: dumping debug options:");
2239                 for (i = 0; debug_levels[i].name; i++) {
2240                         dl = &debug_levels[i];
2241                         log_info("%s,", dl->name);
2242                 }
2243                 log_info("all\n");
2244                 return 1;
2245         }
2246
2247         while ((opt = strsep(&p, ",")) != NULL) {
2248                 int found = 0;
2249
2250                 if (!strncmp(opt, "all", 3)) {
2251                         log_info("fio: set all debug options\n");
2252                         fio_debug = ~0UL;
2253                         continue;
2254                 }
2255
2256                 for (i = 0; debug_levels[i].name; i++) {
2257                         dl = &debug_levels[i];
2258                         found = !strncmp(opt, dl->name, strlen(dl->name));
2259                         if (!found)
2260                                 continue;
2261
2262                         if (dl->shift == FD_JOB) {
2263                                 opt = strchr(opt, ':');
2264                                 if (!opt) {
2265                                         log_err("fio: missing job number\n");
2266                                         break;
2267                                 }
2268                                 opt++;
2269                                 fio_debug_jobno = atoi(opt);
2270                                 log_info("fio: set debug jobno %d\n",
2271                                                         fio_debug_jobno);
2272                         } else {
2273                                 log_info("fio: set debug option %s\n", opt);
2274                                 fio_debug |= (1UL << dl->shift);
2275                         }
2276                         break;
2277                 }
2278
2279                 if (!found)
2280                         log_err("fio: debug mask %s not found\n", opt);
2281         }
2282         return 0;
2283 }
2284 #else
2285 static int set_debug(const char *string)
2286 {
2287         log_err("fio: debug tracing not included in build\n");
2288         return 1;
2289 }
2290 #endif
2291
2292 static void fio_options_fill_optstring(void)
2293 {
2294         char *ostr = cmd_optstr;
2295         int i, c;
2296
2297         c = i = 0;
2298         while (l_opts[i].name) {
2299                 ostr[c++] = l_opts[i].val;
2300                 if (l_opts[i].has_arg == required_argument)
2301                         ostr[c++] = ':';
2302                 else if (l_opts[i].has_arg == optional_argument) {
2303                         ostr[c++] = ':';
2304                         ostr[c++] = ':';
2305                 }
2306                 i++;
2307         }
2308         ostr[c] = '\0';
2309 }
2310
2311 static int client_flag_set(char c)
2312 {
2313         int i;
2314
2315         i = 0;
2316         while (l_opts[i].name) {
2317                 int val = l_opts[i].val;
2318
2319                 if (c == (val & 0xff))
2320                         return (val & FIO_CLIENT_FLAG);
2321
2322                 i++;
2323         }
2324
2325         return 0;
2326 }
2327
2328 static void parse_cmd_client(void *client, char *opt)
2329 {
2330         fio_client_add_cmd_option(client, opt);
2331 }
2332
2333 static void show_closest_option(const char *name)
2334 {
2335         int best_option, best_distance;
2336         int i, distance;
2337
2338         while (*name == '-')
2339                 name++;
2340
2341         best_option = -1;
2342         best_distance = INT_MAX;
2343         i = 0;
2344         while (l_opts[i].name) {
2345                 distance = string_distance(name, l_opts[i].name);
2346                 if (distance < best_distance) {
2347                         best_distance = distance;
2348                         best_option = i;
2349                 }
2350                 i++;
2351         }
2352
2353         if (best_option != -1 && string_distance_ok(name, best_distance))
2354                 log_err("Did you mean %s?\n", l_opts[best_option].name);
2355 }
2356
2357 static int parse_output_format(const char *optarg)
2358 {
2359         char *p, *orig, *opt;
2360         int ret = 0;
2361
2362         p = orig = strdup(optarg);
2363
2364         output_format = 0;
2365
2366         while ((opt = strsep(&p, ",")) != NULL) {
2367                 if (!strcmp(opt, "minimal") ||
2368                     !strcmp(opt, "terse") ||
2369                     !strcmp(opt, "csv"))
2370                         output_format |= FIO_OUTPUT_TERSE;
2371                 else if (!strcmp(opt, "json"))
2372                         output_format |= FIO_OUTPUT_JSON;
2373                 else if (!strcmp(opt, "json+"))
2374                         output_format |= (FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS);
2375                 else if (!strcmp(opt, "normal"))
2376                         output_format |= FIO_OUTPUT_NORMAL;
2377                 else {
2378                         log_err("fio: invalid output format %s\n", opt);
2379                         ret = 1;
2380                         break;
2381                 }
2382         }
2383
2384         free(orig);
2385         return ret;
2386 }
2387
2388 int parse_cmd_line(int argc, char *argv[], int client_type)
2389 {
2390         struct thread_data *td = NULL;
2391         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
2392         char *ostr = cmd_optstr;
2393         char *pid_file = NULL;
2394         void *cur_client = NULL;
2395         int backend = 0;
2396
2397         /*
2398          * Reset optind handling, since we may call this multiple times
2399          * for the backend.
2400          */
2401         optind = 1;
2402
2403         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
2404                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
2405                         parse_cmd_client(cur_client, argv[optind - 1]);
2406                         c &= ~FIO_CLIENT_FLAG;
2407                 }
2408
2409                 switch (c) {
2410                 case 'a':
2411                         smalloc_pool_size = atoi(optarg);
2412                         smalloc_pool_size <<= 10;
2413                         sinit();
2414                         break;
2415                 case 'l':
2416                         log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
2417                         do_exit++;
2418                         exit_val = 1;
2419                         break;
2420                 case 'b':
2421                         write_bw_log = 1;
2422                         break;
2423                 case 'o': {
2424                         FILE *tmp;
2425
2426                         if (f_out && f_out != stdout)
2427                                 fclose(f_out);
2428
2429                         tmp = fopen(optarg, "w+");
2430                         if (!tmp) {
2431                                 log_err("fio: output file open error: %s\n", strerror(errno));
2432                                 exit_val = 1;
2433                                 do_exit++;
2434                                 break;
2435                         }
2436                         f_err = f_out = tmp;
2437                         break;
2438                         }
2439                 case 'm':
2440                         output_format = FIO_OUTPUT_TERSE;
2441                         break;
2442                 case 'F':
2443                         if (parse_output_format(optarg)) {
2444                                 log_err("fio: failed parsing output-format\n");
2445                                 exit_val = 1;
2446                                 do_exit++;
2447                                 break;
2448                         }
2449                         break;
2450                 case 'f':
2451                         output_format |= FIO_OUTPUT_TERSE;
2452                         break;
2453                 case 'h':
2454                         did_arg = true;
2455                         if (!cur_client) {
2456                                 usage(argv[0]);
2457                                 do_exit++;
2458                         }
2459                         break;
2460                 case 'c':
2461                         did_arg = true;
2462                         if (!cur_client) {
2463                                 fio_show_option_help(optarg);
2464                                 do_exit++;
2465                         }
2466                         break;
2467                 case 'i':
2468                         did_arg = true;
2469                         if (!cur_client) {
2470                                 fio_show_ioengine_help(optarg);
2471                                 do_exit++;
2472                         }
2473                         break;
2474                 case 's':
2475                         did_arg = true;
2476                         dump_cmdline = 1;
2477                         break;
2478                 case 'r':
2479                         read_only = 1;
2480                         break;
2481                 case 'v':
2482                         did_arg = true;
2483                         if (!cur_client) {
2484                                 log_info("%s\n", fio_version_string);
2485                                 do_exit++;
2486                         }
2487                         break;
2488                 case 'V':
2489                         terse_version = atoi(optarg);
2490                         if (!(terse_version >= 2 && terse_version <= 5)) {
2491                                 log_err("fio: bad terse version format\n");
2492                                 exit_val = 1;
2493                                 do_exit++;
2494                         }
2495                         break;
2496                 case 'e':
2497                         if (!strcmp("always", optarg))
2498                                 eta_print = FIO_ETA_ALWAYS;
2499                         else if (!strcmp("never", optarg))
2500                                 eta_print = FIO_ETA_NEVER;
2501                         break;
2502                 case 'E': {
2503                         long long t = 0;
2504
2505                         if (check_str_time(optarg, &t, 1)) {
2506                                 log_err("fio: failed parsing eta time %s\n", optarg);
2507                                 exit_val = 1;
2508                                 do_exit++;
2509                         }
2510                         eta_new_line = t / 1000;
2511                         break;
2512                         }
2513                 case 'd':
2514                         if (set_debug(optarg))
2515                                 do_exit++;
2516                         break;
2517                 case 'P':
2518                         did_arg = true;
2519                         parse_only = 1;
2520                         break;
2521                 case 'x': {
2522                         size_t new_size;
2523
2524                         if (!strcmp(optarg, "global")) {
2525                                 log_err("fio: can't use global as only "
2526                                         "section\n");
2527                                 do_exit++;
2528                                 exit_val = 1;
2529                                 break;
2530                         }
2531                         new_size = (nr_job_sections + 1) * sizeof(char *);
2532                         job_sections = realloc(job_sections, new_size);
2533                         job_sections[nr_job_sections] = strdup(optarg);
2534                         nr_job_sections++;
2535                         break;
2536                         }
2537 #ifdef CONFIG_ZLIB
2538                 case 'X':
2539                         exit_val = iolog_file_inflate(optarg);
2540                         did_arg = true;
2541                         do_exit++;
2542                         break;
2543 #endif
2544                 case 'p':
2545                         did_arg = true;
2546                         if (exec_profile)
2547                                 free(exec_profile);
2548                         exec_profile = strdup(optarg);
2549                         break;
2550                 case FIO_GETOPT_JOB: {
2551                         const char *opt = l_opts[lidx].name;
2552                         char *val = optarg;
2553
2554                         if (!strncmp(opt, "name", 4) && td) {
2555                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2556                                 if (ret)
2557                                         goto out_free;
2558                                 td = NULL;
2559                                 did_arg = true;
2560                         }
2561                         if (!td) {
2562                                 int is_section = !strncmp(opt, "name", 4);
2563                                 int global = 0;
2564
2565                                 if (!is_section || !strncmp(val, "global", 6))
2566                                         global = 1;
2567
2568                                 if (is_section && skip_this_section(val))
2569                                         continue;
2570
2571                                 td = get_new_job(global, &def_thread, true, NULL);
2572                                 if (!td || ioengine_load(td)) {
2573                                         if (td) {
2574                                                 put_job(td);
2575                                                 td = NULL;
2576                                         }
2577                                         do_exit++;
2578                                         exit_val = 1;
2579                                         break;
2580                                 }
2581                                 fio_options_set_ioengine_opts(l_opts, td);
2582                         }
2583
2584                         if ((!val || !strlen(val)) &&
2585                             l_opts[lidx].has_arg == required_argument) {
2586                                 log_err("fio: option %s requires an argument\n", opt);
2587                                 ret = 1;
2588                         } else
2589                                 ret = fio_cmd_option_parse(td, opt, val);
2590
2591                         if (ret) {
2592                                 if (td) {
2593                                         put_job(td);
2594                                         td = NULL;
2595                                 }
2596                                 do_exit++;
2597                                 exit_val = 1;
2598                         }
2599
2600                         if (!ret && !strcmp(opt, "ioengine")) {
2601                                 if (ioengine_load(td)) {
2602                                         put_job(td);
2603                                         td = NULL;
2604                                         do_exit++;
2605                                         exit_val = 1;
2606                                         break;
2607                                 }
2608                                 fio_options_set_ioengine_opts(l_opts, td);
2609                         }
2610                         break;
2611                 }
2612                 case FIO_GETOPT_IOENGINE: {
2613                         const char *opt = l_opts[lidx].name;
2614                         char *val = optarg;
2615
2616                         if (!td)
2617                                 break;
2618
2619                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
2620                         break;
2621                 }
2622                 case 'w':
2623                         warnings_fatal = 1;
2624                         break;
2625                 case 'j':
2626                         max_jobs = atoi(optarg);
2627                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2628                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
2629                                 do_exit++;
2630                                 exit_val = 1;
2631                         }
2632                         break;
2633                 case 'S':
2634                         did_arg = true;
2635 #ifndef CONFIG_NO_SHM
2636                         if (nr_clients) {
2637                                 log_err("fio: can't be both client and server\n");
2638                                 do_exit++;
2639                                 exit_val = 1;
2640                                 break;
2641                         }
2642                         if (optarg)
2643                                 fio_server_set_arg(optarg);
2644                         is_backend = 1;
2645                         backend = 1;
2646 #else
2647                         log_err("fio: client/server requires SHM support\n");
2648                         do_exit++;
2649                         exit_val = 1;
2650 #endif
2651                         break;
2652                 case 'D':
2653                         if (pid_file)
2654                                 free(pid_file);
2655                         pid_file = strdup(optarg);
2656                         break;
2657                 case 'I':
2658                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
2659                                 /* exit on error and calibration only */
2660                                 did_arg = true;
2661                                 do_exit++;
2662                                 if (ret == -1)
2663                                         exit_val = 1;
2664                         }
2665                         break;
2666                 case 'C':
2667                         did_arg = true;
2668                         if (is_backend) {
2669                                 log_err("fio: can't be both client and server\n");
2670                                 do_exit++;
2671                                 exit_val = 1;
2672                                 break;
2673                         }
2674                         /* if --client parameter contains a pathname */
2675                         if (0 == access(optarg, R_OK)) {
2676                                 /* file contains a list of host addrs or names */
2677                                 char hostaddr[PATH_MAX] = {0};
2678                                 char formatstr[8];
2679                                 FILE * hostf = fopen(optarg, "r");
2680                                 if (!hostf) {
2681                                         log_err("fio: could not open client list file %s for read\n", optarg);
2682                                         do_exit++;
2683                                         exit_val = 1;
2684                                         break;
2685                                 }
2686                                 sprintf(formatstr, "%%%ds", PATH_MAX - 1);
2687                                 /*
2688                                  * read at most PATH_MAX-1 chars from each
2689                                  * record in this file
2690                                  */
2691                                 while (fscanf(hostf, formatstr, hostaddr) == 1) {
2692                                         /* expect EVERY host in file to be valid */
2693                                         if (fio_client_add(&fio_client_ops, hostaddr, &cur_client)) {
2694                                                 log_err("fio: failed adding client %s from file %s\n", hostaddr, optarg);
2695                                                 do_exit++;
2696                                                 exit_val = 1;
2697                                                 break;
2698                                         }
2699                                 }
2700                                 fclose(hostf);
2701                                 break; /* no possibility of job file for "this client only" */
2702                         }
2703                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2704                                 log_err("fio: failed adding client %s\n", optarg);
2705                                 do_exit++;
2706                                 exit_val = 1;
2707                                 break;
2708                         }
2709                         /*
2710                          * If the next argument exists and isn't an option,
2711                          * assume it's a job file for this client only.
2712                          */
2713                         while (optind < argc) {
2714                                 if (!strncmp(argv[optind], "--", 2) ||
2715                                     !strncmp(argv[optind], "-", 1))
2716                                         break;
2717
2718                                 if (fio_client_add_ini_file(cur_client, argv[optind], false))
2719                                         break;
2720                                 optind++;
2721                         }
2722                         break;
2723                 case 'R':
2724                         did_arg = true;
2725                         if (fio_client_add_ini_file(cur_client, optarg, true)) {
2726                                 do_exit++;
2727                                 exit_val = 1;
2728                         }
2729                         break;
2730                 case 'T':
2731                         did_arg = true;
2732                         do_exit++;
2733                         exit_val = fio_monotonic_clocktest(1);
2734                         break;
2735                 case 'G':
2736                         did_arg = true;
2737                         do_exit++;
2738                         exit_val = fio_crctest(optarg);
2739                         break;
2740                 case 'M':
2741                         did_arg = true;
2742                         do_exit++;
2743                         exit_val = fio_memcpy_test(optarg);
2744                         break;
2745                 case 'L': {
2746                         long long val;
2747
2748                         if (check_str_time(optarg, &val, 1)) {
2749                                 log_err("fio: failed parsing time %s\n", optarg);
2750                                 do_exit++;
2751                                 exit_val = 1;
2752                                 break;
2753                         }
2754                         if (val < 1000) {
2755                                 log_err("fio: status interval too small\n");
2756                                 do_exit++;
2757                                 exit_val = 1;
2758                         }
2759                         status_interval = val / 1000;
2760                         break;
2761                         }
2762                 case 'W':
2763                         if (trigger_file)
2764                                 free(trigger_file);
2765                         trigger_file = strdup(optarg);
2766                         break;
2767                 case 'H':
2768                         if (trigger_cmd)
2769                                 free(trigger_cmd);
2770                         trigger_cmd = strdup(optarg);
2771                         break;
2772                 case 'J':
2773                         if (trigger_remote_cmd)
2774                                 free(trigger_remote_cmd);
2775                         trigger_remote_cmd = strdup(optarg);
2776                         break;
2777                 case 'K':
2778                         if (aux_path)
2779                                 free(aux_path);
2780                         aux_path = strdup(optarg);
2781                         break;
2782                 case 'B':
2783                         if (check_str_time(optarg, &trigger_timeout, 1)) {
2784                                 log_err("fio: failed parsing time %s\n", optarg);
2785                                 do_exit++;
2786                                 exit_val = 1;
2787                         }
2788                         trigger_timeout /= 1000000;
2789                         break;
2790                 case '?':
2791                         log_err("%s: unrecognized option '%s'\n", argv[0],
2792                                                         argv[optind - 1]);
2793                         show_closest_option(argv[optind - 1]);
2794                 default:
2795                         do_exit++;
2796                         exit_val = 1;
2797                         break;
2798                 }
2799                 if (do_exit)
2800                         break;
2801         }
2802
2803         if (do_exit && !(is_backend || nr_clients))
2804                 exit(exit_val);
2805
2806         if (nr_clients && fio_clients_connect())
2807                 exit(1);
2808
2809         if (is_backend && backend)
2810                 return fio_start_server(pid_file);
2811         else if (pid_file)
2812                 free(pid_file);
2813
2814         if (td) {
2815                 if (!ret) {
2816                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2817                         if (ret)
2818                                 exit(1);
2819                 }
2820         }
2821
2822         while (!ret && optind < argc) {
2823                 ini_idx++;
2824                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2825                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2826                 optind++;
2827         }
2828
2829 out_free:
2830         return ini_idx;
2831 }
2832
2833 int fio_init_options(void)
2834 {
2835         f_out = stdout;
2836         f_err = stderr;
2837
2838         fio_options_fill_optstring();
2839         fio_options_dup_and_init(l_opts);
2840
2841         atexit(free_shm);
2842
2843         if (fill_def_thread())
2844                 return 1;
2845
2846         return 0;
2847 }
2848
2849 extern int fio_check_options(struct thread_options *);
2850
2851 int parse_options(int argc, char *argv[])
2852 {
2853         const int type = FIO_CLIENT_TYPE_CLI;
2854         int job_files, i;
2855
2856         if (fio_init_options())
2857                 return 1;
2858         if (fio_test_cconv(&def_thread.o))
2859                 log_err("fio: failed internal cconv test\n");
2860
2861         job_files = parse_cmd_line(argc, argv, type);
2862
2863         if (job_files > 0) {
2864                 for (i = 0; i < job_files; i++) {
2865                         if (i && fill_def_thread())
2866                                 return 1;
2867                         if (nr_clients) {
2868                                 if (fio_clients_send_ini(ini_file[i]))
2869                                         return 1;
2870                                 free(ini_file[i]);
2871                         } else if (!is_backend) {
2872                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2873                                         return 1;
2874                                 free(ini_file[i]);
2875                         }
2876                 }
2877         } else if (nr_clients) {
2878                 if (fill_def_thread())
2879                         return 1;
2880                 if (fio_clients_send_ini(NULL))
2881                         return 1;
2882         }
2883
2884         free(ini_file);
2885         fio_options_free(&def_thread);
2886         filesetup_mem_free();
2887
2888         if (!thread_number) {
2889                 if (parse_dryrun())
2890                         return 0;
2891                 if (exec_profile)
2892                         return 0;
2893                 if (is_backend || nr_clients)
2894                         return 0;
2895                 if (did_arg)
2896                         return 0;
2897
2898                 log_err("No job(s) defined\n\n");
2899                 usage(argv[0]);
2900                 return 1;
2901         }
2902
2903         if (output_format & FIO_OUTPUT_NORMAL)
2904                 log_info("%s\n", fio_version_string);
2905
2906         return 0;
2907 }
2908
2909 void options_default_fill(struct thread_options *o)
2910 {
2911         memcpy(o, &def_thread.o, sizeof(*o));
2912 }
2913
2914 struct thread_data *get_global_options(void)
2915 {
2916         return &def_thread;
2917 }