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