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 #include <dlfcn.h>
  15
  16 #include "fio.h"
  17 #ifndef FIO_NO_HAVE_SHM_H
  18 #include <sys/shm.h>
  19 #endif
  20
  21 #include "parse.h"
  22 #include "smalloc.h"
  23 #include "filehash.h"
  24 #include "verify.h"
  25 #include "profile.h"
  26 #include "server.h"
  27 #include "idletime.h"
  28 #include "filelock.h"
  29 #include "steadystate.h"
  30
  31 #include "oslib/getopt.h"
  32 #include "oslib/strcasestr.h"
  33
  34 #include "crc/test.h"
  35 #include "lib/pow2.h"
  36 #include "lib/memcpy.h"
  37
  38 const char fio_version_string[] = FIO_VERSION;
  39
  40 #define FIO_RANDSEED            (0xb1899bedUL)
  41
  42 static char **ini_file;
  43 static int max_jobs = FIO_MAX_JOBS;
  44 static int dump_cmdline;
  45 static int parse_only;
  46
  47 static struct thread_data def_thread;
  48 struct thread_data *threads = NULL;
  49 static char **job_sections;
  50 static int nr_job_sections;
  51
  52 int exitall_on_terminate = 0;
  53 int output_format = FIO_OUTPUT_NORMAL;
  54 int eta_print = FIO_ETA_AUTO;
  55 unsigned int eta_interval_msec = 1000;
  56 int eta_new_line = 0;
  57 FILE *f_out = NULL;
  58 FILE *f_err = NULL;
  59 char *exec_profile = NULL;
  60 int warnings_fatal = 0;
  61 int terse_version = 3;
  62 int is_backend = 0;
  63 int nr_clients = 0;
  64 int log_syslog = 0;
  65
  66 int write_bw_log = 0;
  67 int read_only = 0;
  68 int status_interval = 0;
  69
  70 char *trigger_file = NULL;
  71 long long trigger_timeout = 0;
  72 char *trigger_cmd = NULL;
  73 char *trigger_remote_cmd = NULL;
  74
  75 char *aux_path = NULL;
  76
  77 static int prev_group_jobs;
  78
  79 unsigned long fio_debug = 0;
  80 unsigned int fio_debug_jobno = -1;
  81 unsigned int *fio_debug_jobp = NULL;
  82 unsigned int *fio_warned = NULL;
  83
  84 static char cmd_optstr[256];
  85 static bool did_arg;
  86
  87 #define FIO_CLIENT_FLAG         (1 << 16)
  88
  89 /*
  90  * Command line options. These will contain the above, plus a few
  91  * extra that only pertain to fio itself and not jobs.
  92  */
  93 static struct option l_opts[FIO_NR_OPTIONS] = {
  94         {
  95                 .name           = (char *) "output",
  96                 .has_arg        = required_argument,
  97                 .val            = 'o' | FIO_CLIENT_FLAG,
  98         },
  99         {
 100                 .name           = (char *) "latency-log",
 101                 .has_arg        = required_argument,
 102                 .val            = 'l' | FIO_CLIENT_FLAG,
 103         },
 104         {
 105                 .name           = (char *) "bandwidth-log",
 106                 .has_arg        = no_argument,
 107                 .val            = 'b' | FIO_CLIENT_FLAG,
 108         },
 109         {
 110                 .name           = (char *) "minimal",
 111                 .has_arg        = no_argument,
 112                 .val            = 'm' | FIO_CLIENT_FLAG,
 113         },
 114         {
 115                 .name           = (char *) "output-format",
 116                 .has_arg        = required_argument,
 117                 .val            = 'F' | FIO_CLIENT_FLAG,
 118         },
 119         {
 120                 .name           = (char *) "append-terse",
 121                 .has_arg        = optional_argument,
 122                 .val            = 'f',
 123         },
 124         {
 125                 .name           = (char *) "version",
 126                 .has_arg        = no_argument,
 127                 .val            = 'v' | FIO_CLIENT_FLAG,
 128         },
 129         {
 130                 .name           = (char *) "help",
 131                 .has_arg        = no_argument,
 132                 .val            = 'h' | FIO_CLIENT_FLAG,
 133         },
 134         {
 135                 .name           = (char *) "cmdhelp",
 136                 .has_arg        = optional_argument,
 137                 .val            = 'c' | FIO_CLIENT_FLAG,
 138         },
 139         {
 140                 .name           = (char *) "enghelp",
 141                 .has_arg        = optional_argument,
 142                 .val            = 'i' | FIO_CLIENT_FLAG,
 143         },
 144         {
 145                 .name           = (char *) "showcmd",
 146                 .has_arg        = no_argument,
 147                 .val            = 's' | FIO_CLIENT_FLAG,
 148         },
 149         {
 150                 .name           = (char *) "readonly",
 151                 .has_arg        = no_argument,
 152                 .val            = 'r' | FIO_CLIENT_FLAG,
 153         },
 154         {
 155                 .name           = (char *) "eta",
 156                 .has_arg        = required_argument,
 157                 .val            = 'e' | FIO_CLIENT_FLAG,
 158         },
 159         {
 160                 .name           = (char *) "eta-interval",
 161                 .has_arg        = required_argument,
 162                 .val            = 'O' | FIO_CLIENT_FLAG,
 163         },
 164         {
 165                 .name           = (char *) "eta-newline",
 166                 .has_arg        = required_argument,
 167                 .val            = 'E' | FIO_CLIENT_FLAG,
 168         },
 169         {
 170                 .name           = (char *) "debug",
 171                 .has_arg        = required_argument,
 172                 .val            = 'd' | FIO_CLIENT_FLAG,
 173         },
 174         {
 175                 .name           = (char *) "parse-only",
 176                 .has_arg        = no_argument,
 177                 .val            = 'P' | FIO_CLIENT_FLAG,
 178         },
 179         {
 180                 .name           = (char *) "section",
 181                 .has_arg        = required_argument,
 182                 .val            = 'x' | FIO_CLIENT_FLAG,
 183         },
 184 #ifdef CONFIG_ZLIB
 185         {
 186                 .name           = (char *) "inflate-log",
 187                 .has_arg        = required_argument,
 188                 .val            = 'X' | FIO_CLIENT_FLAG,
 189         },
 190 #endif
 191         {
 192                 .name           = (char *) "alloc-size",
 193                 .has_arg        = required_argument,
 194                 .val            = 'a' | FIO_CLIENT_FLAG,
 195         },
 196         {
 197                 .name           = (char *) "profile",
 198                 .has_arg        = required_argument,
 199                 .val            = 'p' | FIO_CLIENT_FLAG,
 200         },
 201         {
 202                 .name           = (char *) "warnings-fatal",
 203                 .has_arg        = no_argument,
 204                 .val            = 'w' | FIO_CLIENT_FLAG,
 205         },
 206         {
 207                 .name           = (char *) "max-jobs",
 208                 .has_arg        = required_argument,
 209                 .val            = 'j' | FIO_CLIENT_FLAG,
 210         },
 211         {
 212                 .name           = (char *) "terse-version",
 213                 .has_arg        = required_argument,
 214                 .val            = 'V' | FIO_CLIENT_FLAG,
 215         },
 216         {
 217                 .name           = (char *) "server",
 218                 .has_arg        = optional_argument,
 219                 .val            = 'S',
 220         },
 221         {       .name           = (char *) "daemonize",
 222                 .has_arg        = required_argument,
 223                 .val            = 'D',
 224         },
 225         {
 226                 .name           = (char *) "client",
 227                 .has_arg        = required_argument,
 228                 .val            = 'C',
 229         },
 230         {
 231                 .name           = (char *) "remote-config",
 232                 .has_arg        = required_argument,
 233                 .val            = 'R',
 234         },
 235         {
 236                 .name           = (char *) "cpuclock-test",
 237                 .has_arg        = no_argument,
 238                 .val            = 'T',
 239         },
 240         {
 241                 .name           = (char *) "crctest",
 242                 .has_arg        = optional_argument,
 243                 .val            = 'G',
 244         },
 245         {
 246                 .name           = (char *) "memcpytest",
 247                 .has_arg        = optional_argument,
 248                 .val            = 'M',
 249         },
 250         {
 251                 .name           = (char *) "idle-prof",
 252                 .has_arg        = required_argument,
 253                 .val            = 'I',
 254         },
 255         {
 256                 .name           = (char *) "status-interval",
 257                 .has_arg        = required_argument,
 258                 .val            = 'L',
 259         },
 260         {
 261                 .name           = (char *) "trigger-file",
 262                 .has_arg        = required_argument,
 263                 .val            = 'W',
 264         },
 265         {
 266                 .name           = (char *) "trigger-timeout",
 267                 .has_arg        = required_argument,
 268                 .val            = 'B',
 269         },
 270         {
 271                 .name           = (char *) "trigger",
 272                 .has_arg        = required_argument,
 273                 .val            = 'H',
 274         },
 275         {
 276                 .name           = (char *) "trigger-remote",
 277                 .has_arg        = required_argument,
 278                 .val            = 'J',
 279         },
 280         {
 281                 .name           = (char *) "aux-path",
 282                 .has_arg        = required_argument,
 283                 .val            = 'K',
 284         },
 285         {
 286                 .name           = NULL,
 287         },
 288 };
 289
 290 void free_threads_shm(void)
 291 {
 292         if (threads) {
 293                 void *tp = threads;
 294 #ifndef CONFIG_NO_SHM
 295                 struct shmid_ds sbuf;
 296
 297                 threads = NULL;
 298                 shmdt(tp);
 299                 shmctl(shm_id, IPC_RMID, &sbuf);
 300                 shm_id = -1;
 301 #else
 302                 threads = NULL;
 303                 free(tp);
 304 #endif
 305         }
 306 }
 307
 308 static void free_shm(void)
 309 {
 310         if (threads) {
 311                 flow_exit();
 312                 fio_debug_jobp = NULL;
 313                 fio_warned = NULL;
 314                 free_threads_shm();
 315         }
 316
 317         free(trigger_file);
 318         free(trigger_cmd);
 319         free(trigger_remote_cmd);
 320         trigger_file = trigger_cmd = trigger_remote_cmd = NULL;
 321
 322         options_free(fio_options, &def_thread.o);
 323         fio_filelock_exit();
 324         file_hash_exit();
 325         scleanup();
 326 }
 327
 328 /*
 329  * The thread area is shared between the main process and the job
 330  * threads/processes. So setup a shared memory segment that will hold
 331  * all the job info. We use the end of the region for keeping track of
 332  * open files across jobs, for file sharing.
 333  */
 334 static int setup_thread_area(void)
 335 {
 336         if (threads)
 337                 return 0;
 338
 339         /*
 340          * 1024 is too much on some machines, scale max_jobs if
 341          * we get a failure that looks like too large a shm segment
 342          */
 343         do {
 344                 size_t size = max_jobs * sizeof(struct thread_data);
 345
 346                 size += 2 * sizeof(unsigned int);
 347
 348 #ifndef CONFIG_NO_SHM
 349                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 350                 if (shm_id != -1)
 351                         break;
 352                 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
 353                         perror("shmget");
 354                         break;
 355                 }
 356 #else
 357                 threads = malloc(size);
 358                 if (threads)
 359                         break;
 360 #endif
 361
 362                 max_jobs >>= 1;
 363         } while (max_jobs);
 364
 365 #ifndef CONFIG_NO_SHM
 366         if (shm_id == -1)
 367                 return 1;
 368
 369         threads = shmat(shm_id, NULL, 0);
 370         if (threads == (void *) -1) {
 371                 perror("shmat");
 372                 return 1;
 373         }
 374         if (shm_attach_to_open_removed())
 375                 shmctl(shm_id, IPC_RMID, NULL);
 376 #endif
 377
 378         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 379         fio_debug_jobp = (unsigned int *)(threads + max_jobs);
 380         *fio_debug_jobp = -1;
 381         fio_warned = fio_debug_jobp + 1;
 382         *fio_warned = 0;
 383
 384         flow_init();
 385
 386         return 0;
 387 }
 388
 389 static void dump_print_option(struct print_option *p)
 390 {
 391         const char *delim;
 392
 393         if (!strcmp("description", p->name))
 394                 delim = "\"";
 395         else
 396                 delim = "";
 397
 398         log_info("--%s%s", p->name, p->value ? "" : " ");
 399         if (p->value)
 400                 log_info("=%s%s%s ", delim, p->value, delim);
 401 }
 402
 403 static void dump_opt_list(struct thread_data *td)
 404 {
 405         struct flist_head *entry;
 406         struct print_option *p;
 407
 408         if (flist_empty(&td->opt_list))
 409                 return;
 410
 411         flist_for_each(entry, &td->opt_list) {
 412                 p = flist_entry(entry, struct print_option, list);
 413                 dump_print_option(p);
 414         }
 415 }
 416
 417 static void fio_dump_options_free(struct thread_data *td)
 418 {
 419         while (!flist_empty(&td->opt_list)) {
 420                 struct print_option *p;
 421
 422                 p = flist_first_entry(&td->opt_list, struct print_option, list);
 423                 flist_del_init(&p->list);
 424                 free(p->name);
 425                 free(p->value);
 426                 free(p);
 427         }
 428 }
 429
 430 static void copy_opt_list(struct thread_data *dst, struct thread_data *src)
 431 {
 432         struct flist_head *entry;
 433
 434         if (flist_empty(&src->opt_list))
 435                 return;
 436
 437         flist_for_each(entry, &src->opt_list) {
 438                 struct print_option *srcp, *dstp;
 439
 440                 srcp = flist_entry(entry, struct print_option, list);
 441                 dstp = malloc(sizeof(*dstp));
 442                 dstp->name = strdup(srcp->name);
 443                 if (srcp->value)
 444                         dstp->value = strdup(srcp->value);
 445                 else
 446                         dstp->value = NULL;
 447                 flist_add_tail(&dstp->list, &dst->opt_list);
 448         }
 449 }
 450
 451 /*
 452  * Return a free job structure.
 453  */
 454 static struct thread_data *get_new_job(bool global, struct thread_data *parent,
 455                                        bool preserve_eo, const char *jobname)
 456 {
 457         struct thread_data *td;
 458
 459         if (global)
 460                 return &def_thread;
 461         if (setup_thread_area()) {
 462                 log_err("error: failed to setup shm segment\n");
 463                 return NULL;
 464         }
 465         if (thread_number >= max_jobs) {
 466                 log_err("error: maximum number of jobs (%d) reached.\n",
 467                                 max_jobs);
 468                 return NULL;
 469         }
 470
 471         td = &threads[thread_number++];
 472         *td = *parent;
 473
 474         INIT_FLIST_HEAD(&td->opt_list);
 475         if (parent != &def_thread)
 476                 copy_opt_list(td, parent);
 477
 478         td->io_ops = NULL;
 479         td->io_ops_init = 0;
 480         if (!preserve_eo)
 481                 td->eo = NULL;
 482
 483         td->o.uid = td->o.gid = -1U;
 484
 485         dup_files(td, parent);
 486         fio_options_mem_dupe(td);
 487
 488         profile_add_hooks(td);
 489
 490         td->thread_number = thread_number;
 491         td->subjob_number = 0;
 492
 493         if (jobname)
 494                 td->o.name = strdup(jobname);
 495
 496         if (!parent->o.group_reporting || parent == &def_thread)
 497                 stat_number++;
 498
 499         return td;
 500 }
 501
 502 static void put_job(struct thread_data *td)
 503 {
 504         if (td == &def_thread)
 505                 return;
 506
 507         profile_td_exit(td);
 508         flow_exit_job(td);
 509
 510         if (td->error)
 511                 log_info("fio: %s\n", td->verror);
 512
 513         fio_options_free(td);
 514         fio_dump_options_free(td);
 515         if (td->io_ops)
 516                 free_ioengine(td);
 517
 518         if (td->o.name)
 519                 free(td->o.name);
 520
 521         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 522         thread_number--;
 523 }
 524
 525 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 526 {
 527         unsigned int bs = td->o.min_bs[ddir];
 528
 529         assert(ddir_rw(ddir));
 530
 531         if (td->o.rate[ddir])
 532                 td->rate_bps[ddir] = td->o.rate[ddir];
 533         else
 534                 td->rate_bps[ddir] = (uint64_t) td->o.rate_iops[ddir] * bs;
 535
 536         if (!td->rate_bps[ddir]) {
 537                 log_err("rate lower than supported\n");
 538                 return -1;
 539         }
 540
 541         td->rate_next_io_time[ddir] = 0;
 542         td->rate_io_issue_bytes[ddir] = 0;
 543         td->last_usec[ddir] = 0;
 544         return 0;
 545 }
 546
 547 static int setup_rate(struct thread_data *td)
 548 {
 549         int ret = 0;
 550
 551         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
 552                 ret = __setup_rate(td, DDIR_READ);
 553         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
 554                 ret |= __setup_rate(td, DDIR_WRITE);
 555         if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
 556                 ret |= __setup_rate(td, DDIR_TRIM);
 557
 558         return ret;
 559 }
 560
 561 static int fixed_block_size(struct thread_options *o)
 562 {
 563         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 564                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 565                 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
 566                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
 567                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
 568 }
 569
 570
 571 static unsigned long long get_rand_start_delay(struct thread_data *td)
 572 {
 573         unsigned long long delayrange;
 574         uint64_t frand_max;
 575         unsigned long r;
 576
 577         delayrange = td->o.start_delay_high - td->o.start_delay;
 578
 579         frand_max = rand_max(&td->delay_state);
 580         r = __rand(&td->delay_state);
 581         delayrange = (unsigned long long) ((double) delayrange * (r / (frand_max + 1.0)));
 582
 583         delayrange += td->o.start_delay;
 584         return delayrange;
 585 }
 586
 587 /*
 588  * <3 Johannes
 589  */
 590 static unsigned int gcd(unsigned int m, unsigned int n)
 591 {
 592         if (!n)
 593                 return m;
 594
 595         return gcd(n, m % n);
 596 }
 597
 598 /*
 599  * Lazy way of fixing up options that depend on each other. We could also
 600  * define option callback handlers, but this is easier.
 601  */
 602 static int fixup_options(struct thread_data *td)
 603 {
 604         struct thread_options *o = &td->o;
 605         int ret = 0;
 606
 607 #ifndef CONFIG_PSHARED
 608         if (!o->use_thread) {
 609                 log_info("fio: this platform does not support process shared"
 610                          " mutexes, forcing use of threads. Use the 'thread'"
 611                          " option to get rid of this warning.\n");
 612                 o->use_thread = 1;
 613                 ret = warnings_fatal;
 614         }
 615 #endif
 616
 617         if (o->write_iolog_file && o->read_iolog_file) {
 618                 log_err("fio: read iolog overrides write_iolog\n");
 619                 free(o->write_iolog_file);
 620                 o->write_iolog_file = NULL;
 621                 ret = warnings_fatal;
 622         }
 623
 624         /*
 625          * only really works with 1 file
 626          */
 627         if (o->zone_size && o->open_files > 1)
 628                 o->zone_size = 0;
 629
 630         /*
 631          * If zone_range isn't specified, backward compatibility dictates it
 632          * should be made equal to zone_size.
 633          */
 634         if (o->zone_size && !o->zone_range)
 635                 o->zone_range = o->zone_size;
 636
 637         /*
 638          * Reads can do overwrites, we always need to pre-create the file
 639          */
 640         if (td_read(td))
 641                 o->overwrite = 1;
 642
 643         if (!o->min_bs[DDIR_READ])
 644                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
 645         if (!o->max_bs[DDIR_READ])
 646                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 647         if (!o->min_bs[DDIR_WRITE])
 648                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 649         if (!o->max_bs[DDIR_WRITE])
 650                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 651         if (!o->min_bs[DDIR_TRIM])
 652                 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 653         if (!o->max_bs[DDIR_TRIM])
 654                 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 655
 656         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 657         o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
 658
 659         /*
 660          * For random IO, allow blockalign offset other than min_bs.
 661          */
 662         if (!o->ba[DDIR_READ] || !td_random(td))
 663                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
 664         if (!o->ba[DDIR_WRITE] || !td_random(td))
 665                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
 666         if (!o->ba[DDIR_TRIM] || !td_random(td))
 667                 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
 668
 669         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 670             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
 671             o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
 672             !o->norandommap) {
 673                 log_err("fio: Any use of blockalign= turns off randommap\n");
 674                 o->norandommap = 1;
 675                 ret = warnings_fatal;
 676         }
 677
 678         if (!o->file_size_high)
 679                 o->file_size_high = o->file_size_low;
 680
 681         if (o->start_delay_high)
 682                 o->start_delay = get_rand_start_delay(td);
 683
 684         if (o->norandommap && o->verify != VERIFY_NONE
 685             && !fixed_block_size(o))  {
 686                 log_err("fio: norandommap given for variable block sizes, "
 687                         "verify limited\n");
 688                 ret = warnings_fatal;
 689         }
 690         if (o->bs_unaligned && (o->odirect || td_ioengine_flagged(td, FIO_RAWIO)))
 691                 log_err("fio: bs_unaligned may not work with raw io\n");
 692
 693         /*
 694          * thinktime_spin must be less than thinktime
 695          */
 696         if (o->thinktime_spin > o->thinktime)
 697                 o->thinktime_spin = o->thinktime;
 698
 699         /*
 700          * The low water mark cannot be bigger than the iodepth
 701          */
 702         if (o->iodepth_low > o->iodepth || !o->iodepth_low)
 703                 o->iodepth_low = o->iodepth;
 704
 705         /*
 706          * If batch number isn't set, default to the same as iodepth
 707          */
 708         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 709                 o->iodepth_batch = o->iodepth;
 710
 711         /*
 712          * If max batch complete number isn't set or set incorrectly,
 713          * default to the same as iodepth_batch_complete_min
 714          */
 715         if (o->iodepth_batch_complete_min > o->iodepth_batch_complete_max)
 716                 o->iodepth_batch_complete_max = o->iodepth_batch_complete_min;
 717
 718         /*
 719          * There's no need to check for in-flight overlapping IOs if the job
 720          * isn't changing data or the maximum iodepth is guaranteed to be 1
 721          */
 722         if (o->serialize_overlap && !(td->flags & TD_F_READ_IOLOG) &&
 723             (!(td_write(td) || td_trim(td)) || o->iodepth == 1))
 724                 o->serialize_overlap = 0;
 725         /*
 726          * Currently can't check for overlaps in offload mode
 727          */
 728         if (o->serialize_overlap && o->io_submit_mode == IO_MODE_OFFLOAD) {
 729                 log_err("fio: checking for in-flight overlaps when the "
 730                         "io_submit_mode is offload is not supported\n");
 731                 o->serialize_overlap = 0;
 732                 ret = warnings_fatal;
 733         }
 734
 735         if (o->nr_files > td->files_index)
 736                 o->nr_files = td->files_index;
 737
 738         if (o->open_files > o->nr_files || !o->open_files)
 739                 o->open_files = o->nr_files;
 740
 741         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
 742             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
 743             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 744             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 745                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 746                 ret = 1;
 747         }
 748         if ((o->rate[DDIR_READ] && (o->rate[DDIR_READ] < o->ratemin[DDIR_READ])) ||
 749             (o->rate[DDIR_WRITE] && (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE])) ||
 750             (o->rate[DDIR_TRIM] && (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM])) ||
 751             (o->rate_iops[DDIR_READ] && (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ])) ||
 752             (o->rate_iops[DDIR_WRITE] && (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE])) ||
 753             (o->rate_iops[DDIR_TRIM] && (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM]))) {
 754                 log_err("fio: minimum rate exceeds rate\n");
 755                 ret = 1;
 756         }
 757
 758         if (!o->timeout && o->time_based) {
 759                 log_err("fio: time_based requires a runtime/timeout setting\n");
 760                 o->time_based = 0;
 761                 ret = warnings_fatal;
 762         }
 763
 764         if (o->fill_device && !o->size)
 765                 o->size = -1ULL;
 766
 767         if (o->verify != VERIFY_NONE) {
 768                 if (td_write(td) && o->do_verify && o->numjobs > 1 &&
 769                     (o->filename ||
 770                      !(o->unique_filename &&
 771                        strstr(o->filename_format, "$jobname") &&
 772                        strstr(o->filename_format, "$jobnum") &&
 773                        strstr(o->filename_format, "$filenum")))) {
 774                         log_info("fio: multiple writers may overwrite blocks "
 775                                 "that belong to other jobs. This can cause "
 776                                 "verification failures.\n");
 777                         ret = warnings_fatal;
 778                 }
 779
 780                 /*
 781                  * Warn if verification is requested but no verification of any
 782                  * kind can be started due to time constraints
 783                  */
 784                 if (td_write(td) && o->do_verify && o->timeout &&
 785                     o->time_based && !td_read(td) && !o->verify_backlog) {
 786                         log_info("fio: verification read phase will never "
 787                                  "start because write phase uses all of "
 788                                  "runtime\n");
 789                         ret = warnings_fatal;
 790                 }
 791
 792                 if (!fio_option_is_set(o, refill_buffers))
 793                         o->refill_buffers = 1;
 794
 795                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 796                     !o->verify_interval)
 797                         o->verify_interval = o->min_bs[DDIR_WRITE];
 798
 799                 /*
 800                  * Verify interval must be smaller or equal to the
 801                  * write size.
 802                  */
 803                 if (o->verify_interval > o->min_bs[DDIR_WRITE])
 804                         o->verify_interval = o->min_bs[DDIR_WRITE];
 805                 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
 806                         o->verify_interval = o->min_bs[DDIR_READ];
 807
 808                 /*
 809                  * Verify interval must be a factor of both min and max
 810                  * write size
 811                  */
 812                 if (!o->verify_interval ||
 813                     (o->min_bs[DDIR_WRITE] % o->verify_interval) ||
 814                     (o->max_bs[DDIR_WRITE] % o->verify_interval))
 815                         o->verify_interval = gcd(o->min_bs[DDIR_WRITE],
 816                                                         o->max_bs[DDIR_WRITE]);
 817         }
 818
 819         if (o->pre_read) {
 820                 if (o->invalidate_cache)
 821                         o->invalidate_cache = 0;
 822                 if (td_ioengine_flagged(td, FIO_PIPEIO)) {
 823                         log_info("fio: cannot pre-read files with an IO engine"
 824                                  " that isn't seekable. Pre-read disabled.\n");
 825                         ret = warnings_fatal;
 826                 }
 827         }
 828
 829         if (!o->unit_base) {
 830                 if (td_ioengine_flagged(td, FIO_BIT_BASED))
 831                         o->unit_base = 1;
 832                 else
 833                         o->unit_base = 8;
 834         }
 835
 836 #ifndef FIO_HAVE_ANY_FALLOCATE
 837         /* Platform doesn't support any fallocate so force it to none */
 838         o->fallocate_mode = FIO_FALLOCATE_NONE;
 839 #endif
 840
 841 #ifndef CONFIG_FDATASYNC
 842         if (o->fdatasync_blocks) {
 843                 log_info("fio: this platform does not support fdatasync()"
 844                          " falling back to using fsync().  Use the 'fsync'"
 845                          " option instead of 'fdatasync' to get rid of"
 846                          " this warning\n");
 847                 o->fsync_blocks = o->fdatasync_blocks;
 848                 o->fdatasync_blocks = 0;
 849                 ret = warnings_fatal;
 850         }
 851 #endif
 852
 853 #ifdef WIN32
 854         /*
 855          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 856          * so fail if we're passed those flags
 857          */
 858         if (td_ioengine_flagged(td, FIO_SYNCIO) && (o->odirect || o->sync_io)) {
 859                 log_err("fio: Windows does not support direct or non-buffered io with"
 860                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 861                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 862                 ret = 1;
 863         }
 864 #endif
 865
 866         /*
 867          * For fully compressible data, just zero them at init time.
 868          * It's faster than repeatedly filling it. For non-zero
 869          * compression, we should have refill_buffers set. Set it, unless
 870          * the job file already changed it.
 871          */
 872         if (o->compress_percentage) {
 873                 if (o->compress_percentage == 100) {
 874                         o->zero_buffers = 1;
 875                         o->compress_percentage = 0;
 876                 } else if (!fio_option_is_set(o, refill_buffers)) {
 877                         o->refill_buffers = 1;
 878                         td->flags |= TD_F_REFILL_BUFFERS;
 879                 }
 880         }
 881
 882         /*
 883          * Using a non-uniform random distribution excludes usage of
 884          * a random map
 885          */
 886         if (o->random_distribution != FIO_RAND_DIST_RANDOM)
 887                 o->norandommap = 1;
 888
 889         /*
 890          * If size is set but less than the min block size, complain
 891          */
 892         if (o->size && o->size < td_min_bs(td)) {
 893                 log_err("fio: size too small, must not be less than minimum block size: %llu < %u\n",
 894                         (unsigned long long) o->size, td_min_bs(td));
 895                 ret = 1;
 896         }
 897
 898         /*
 899          * O_ATOMIC implies O_DIRECT
 900          */
 901         if (o->oatomic)
 902                 o->odirect = 1;
 903
 904         /*
 905          * If randseed is set, that overrides randrepeat
 906          */
 907         if (fio_option_is_set(o, rand_seed))
 908                 o->rand_repeatable = 0;
 909
 910         if (td_ioengine_flagged(td, FIO_NOEXTEND) && o->file_append) {
 911                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
 912                 ret = 1;
 913         }
 914
 915         if (fio_option_is_set(o, gtod_cpu)) {
 916                 fio_gtod_init();
 917                 fio_gtod_set_cpu(o->gtod_cpu);
 918                 fio_gtod_offload = 1;
 919         }
 920
 921         td->loops = o->loops;
 922         if (!td->loops)
 923                 td->loops = 1;
 924
 925         if (o->block_error_hist && o->nr_files != 1) {
 926                 log_err("fio: block error histogram only available "
 927                         "with a single file per job, but %d files "
 928                         "provided\n", o->nr_files);
 929                 ret = 1;
 930         }
 931
 932         if (fio_option_is_set(o, clat_percentiles) &&
 933             !fio_option_is_set(o, lat_percentiles)) {
 934                 o->lat_percentiles = !o->clat_percentiles;
 935         } else if (fio_option_is_set(o, lat_percentiles) &&
 936                    !fio_option_is_set(o, clat_percentiles)) {
 937                 o->clat_percentiles = !o->lat_percentiles;
 938         } else if (fio_option_is_set(o, lat_percentiles) &&
 939                    fio_option_is_set(o, clat_percentiles) &&
 940                    o->lat_percentiles && o->clat_percentiles) {
 941                 log_err("fio: lat_percentiles and clat_percentiles are "
 942                         "mutually exclusive\n");
 943                 ret = 1;
 944         }
 945
 946         if (o->disable_lat)
 947                 o->lat_percentiles = 0;
 948         if (o->disable_clat)
 949                 o->clat_percentiles = 0;
 950
 951         /*
 952          * Fix these up to be nsec internally
 953          */
 954         o->max_latency *= 1000ULL;
 955         o->latency_target *= 1000ULL;
 956         o->latency_window *= 1000ULL;
 957
 958         return ret;
 959 }
 960
 961 static void init_rand_file_service(struct thread_data *td)
 962 {
 963         unsigned long nranges = td->o.nr_files << FIO_FSERVICE_SHIFT;
 964         const unsigned int seed = td->rand_seeds[FIO_RAND_FILE_OFF];
 965
 966         if (td->o.file_service_type == FIO_FSERVICE_ZIPF) {
 967                 zipf_init(&td->next_file_zipf, nranges, td->zipf_theta, seed);
 968                 zipf_disable_hash(&td->next_file_zipf);
 969         } else if (td->o.file_service_type == FIO_FSERVICE_PARETO) {
 970                 pareto_init(&td->next_file_zipf, nranges, td->pareto_h, seed);
 971                 zipf_disable_hash(&td->next_file_zipf);
 972         } else if (td->o.file_service_type == FIO_FSERVICE_GAUSS) {
 973                 gauss_init(&td->next_file_gauss, nranges, td->gauss_dev, seed);
 974                 gauss_disable_hash(&td->next_file_gauss);
 975         }
 976 }
 977
 978 void td_fill_verify_state_seed(struct thread_data *td)
 979 {
 980         bool use64;
 981
 982         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
 983                 use64 = true;
 984         else
 985                 use64 = false;
 986
 987         init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF],
 988                 use64);
 989 }
 990
 991 static void td_fill_rand_seeds_internal(struct thread_data *td, bool use64)
 992 {
 993         int i;
 994
 995         /*
 996          * trimwrite is special in that we need to generate the same
 997          * offsets to get the "write after trim" effect. If we are
 998          * using bssplit to set buffer length distributions, ensure that
 999          * we seed the trim and write generators identically.
1000          */
1001         if (td_trimwrite(td)) {
1002                 init_rand_seed(&td->bsrange_state[DDIR_READ], td->rand_seeds[FIO_RAND_BS_OFF], use64);
1003                 init_rand_seed(&td->bsrange_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
1004                 init_rand_seed(&td->bsrange_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
1005         } else {
1006                 init_rand_seed(&td->bsrange_state[DDIR_READ], td->rand_seeds[FIO_RAND_BS_OFF], use64);
1007                 init_rand_seed(&td->bsrange_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_BS1_OFF], use64);
1008                 init_rand_seed(&td->bsrange_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_BS2_OFF], use64);
1009         }
1010
1011         td_fill_verify_state_seed(td);
1012         init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], false);
1013
1014         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
1015                 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF], use64);
1016         else if (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM)
1017                 init_rand_file_service(td);
1018
1019         init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], use64);
1020         init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF], use64);
1021         init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY], use64);
1022         init_rand_seed(&td->poisson_state[0], td->rand_seeds[FIO_RAND_POISSON_OFF], 0);
1023         init_rand_seed(&td->poisson_state[1], td->rand_seeds[FIO_RAND_POISSON2_OFF], 0);
1024         init_rand_seed(&td->poisson_state[2], td->rand_seeds[FIO_RAND_POISSON3_OFF], 0);
1025         init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF], false);
1026         init_rand_seed(&td->zone_state, td->rand_seeds[FIO_RAND_ZONE_OFF], false);
1027
1028         if (!td_random(td))
1029                 return;
1030
1031         if (td->o.rand_repeatable)
1032                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
1033
1034         init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF], use64);
1035
1036         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1037                 struct frand_state *s = &td->seq_rand_state[i];
1038
1039                 init_rand_seed(s, td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], false);
1040         }
1041 }
1042
1043 void td_fill_rand_seeds(struct thread_data *td)
1044 {
1045         bool use64;
1046
1047         if (td->o.allrand_repeatable) {
1048                 unsigned int i;
1049
1050                 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
1051                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
1052                                 + i;
1053         }
1054
1055         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
1056                 use64 = true;
1057         else
1058                 use64 = false;
1059
1060         td_fill_rand_seeds_internal(td, use64);
1061
1062         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF], use64);
1063         frand_copy(&td->buf_state_prev, &td->buf_state);
1064 }
1065
1066 /*
1067  * Initializes the ioengine configured for a job, if it has not been done so
1068  * already.
1069  */
1070 int ioengine_load(struct thread_data *td)
1071 {
1072         if (!td->o.ioengine) {
1073                 log_err("fio: internal fault, no IO engine specified\n");
1074                 return 1;
1075         }
1076
1077         if (td->io_ops) {
1078                 struct ioengine_ops *ops;
1079                 void *dlhandle;
1080
1081                 /* An engine is loaded, but the requested ioengine
1082                  * may have changed.
1083                  */
1084                 if (!strcmp(td->io_ops->name, td->o.ioengine)) {
1085                         /* The right engine is already loaded */
1086                         return 0;
1087                 }
1088
1089                 /*
1090                  * Name of file and engine may be different, load ops
1091                  * for this name and see if they match. If they do, then
1092                  * the engine is unchanged.
1093                  */
1094                 dlhandle = td->io_ops_dlhandle;
1095                 ops = load_ioengine(td);
1096                 if (ops == td->io_ops && dlhandle == td->io_ops_dlhandle) {
1097                         if (dlhandle)
1098                                 dlclose(dlhandle);
1099                         return 0;
1100                 }
1101
1102                 if (dlhandle && dlhandle != td->io_ops_dlhandle)
1103                         dlclose(dlhandle);
1104
1105                 /* Unload the old engine. */
1106                 free_ioengine(td);
1107         }
1108
1109         td->io_ops = load_ioengine(td);
1110         if (!td->io_ops) {
1111                 log_err("fio: failed to load engine\n");
1112                 return 1;
1113         }
1114
1115         if (td->io_ops->option_struct_size && td->io_ops->options) {
1116                 /*
1117                  * In cases where td->eo is set, clone it for a child thread.
1118                  * This requires that the parent thread has the same ioengine,
1119                  * but that requirement must be enforced by the code which
1120                  * cloned the thread.
1121                  */
1122                 void *origeo = td->eo;
1123                 /*
1124                  * Otherwise use the default thread options.
1125                  */
1126                 if (!origeo && td != &def_thread && def_thread.eo &&
1127                     def_thread.io_ops->options == td->io_ops->options)
1128                         origeo = def_thread.eo;
1129
1130                 options_init(td->io_ops->options);
1131                 td->eo = malloc(td->io_ops->option_struct_size);
1132                 /*
1133                  * Use the default thread as an option template if this uses the
1134                  * same options structure and there are non-default options
1135                  * used.
1136                  */
1137                 if (origeo) {
1138                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
1139                         options_mem_dupe(td->io_ops->options, td->eo);
1140                 } else {
1141                         memset(td->eo, 0, td->io_ops->option_struct_size);
1142                         fill_default_options(td->eo, td->io_ops->options);
1143                 }
1144                 *(struct thread_data **)td->eo = td;
1145         }
1146
1147         if (td->o.odirect)
1148                 td->io_ops->flags |= FIO_RAWIO;
1149
1150         td_set_ioengine_flags(td);
1151         return 0;
1152 }
1153
1154 static void init_flags(struct thread_data *td)
1155 {
1156         struct thread_options *o = &td->o;
1157         int i;
1158
1159         if (o->verify_backlog)
1160                 td->flags |= TD_F_VER_BACKLOG;
1161         if (o->trim_backlog)
1162                 td->flags |= TD_F_TRIM_BACKLOG;
1163         if (o->read_iolog_file)
1164                 td->flags |= TD_F_READ_IOLOG;
1165         if (o->refill_buffers)
1166                 td->flags |= TD_F_REFILL_BUFFERS;
1167         /*
1168          * Always scramble buffers if asked to
1169          */
1170         if (o->scramble_buffers && fio_option_is_set(o, scramble_buffers))
1171                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1172         /*
1173          * But also scramble buffers, unless we were explicitly asked
1174          * to zero them.
1175          */
1176         if (o->scramble_buffers && !(o->zero_buffers &&
1177             fio_option_is_set(o, zero_buffers)))
1178                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1179         if (o->verify != VERIFY_NONE)
1180                 td->flags |= TD_F_VER_NONE;
1181
1182         if (o->verify_async || o->io_submit_mode == IO_MODE_OFFLOAD)
1183                 td->flags |= TD_F_NEED_LOCK;
1184
1185         if (o->mem_type == MEM_CUDA_MALLOC)
1186                 td->flags &= ~TD_F_SCRAMBLE_BUFFERS;
1187
1188         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1189                 if (option_check_rate(td, i)) {
1190                         td->flags |= TD_F_CHECK_RATE;
1191                         break;
1192                 }
1193         }
1194 }
1195
1196 static int setup_random_seeds(struct thread_data *td)
1197 {
1198         unsigned long seed;
1199         unsigned int i;
1200
1201         if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed)) {
1202                 int ret = init_random_seeds(td->rand_seeds, sizeof(td->rand_seeds));
1203                 if (!ret)
1204                         td_fill_rand_seeds(td);
1205                 return ret;
1206         }
1207
1208         seed = td->o.rand_seed;
1209         for (i = 0; i < 4; i++)
1210                 seed *= 0x9e370001UL;
1211
1212         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
1213                 td->rand_seeds[i] = seed * td->thread_number + i;
1214                 seed *= 0x9e370001UL;
1215         }
1216
1217         td_fill_rand_seeds(td);
1218         return 0;
1219 }
1220
1221 enum {
1222         FPRE_NONE = 0,
1223         FPRE_JOBNAME,
1224         FPRE_JOBNUM,
1225         FPRE_FILENUM
1226 };
1227
1228 static struct fpre_keyword {
1229         const char *keyword;
1230         size_t strlen;
1231         int key;
1232 } fpre_keywords[] = {
1233         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
1234         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
1235         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
1236         { .keyword = NULL, },
1237         };
1238
1239 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
1240                            const char *jobname, int jobnum, int filenum)
1241 {
1242         struct fpre_keyword *f;
1243         char copy[PATH_MAX];
1244         size_t dst_left = PATH_MAX - 1;
1245
1246         if (!o->filename_format || !strlen(o->filename_format)) {
1247                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
1248                 return buf;
1249         }
1250
1251         for (f = &fpre_keywords[0]; f->keyword; f++)
1252                 f->strlen = strlen(f->keyword);
1253
1254         buf[buf_size - 1] = '\0';
1255         strncpy(buf, o->filename_format, buf_size - 1);
1256
1257         memset(copy, 0, sizeof(copy));
1258         for (f = &fpre_keywords[0]; f->keyword; f++) {
1259                 do {
1260                         size_t pre_len, post_start = 0;
1261                         char *str, *dst = copy;
1262
1263                         str = strcasestr(buf, f->keyword);
1264                         if (!str)
1265                                 break;
1266
1267                         pre_len = str - buf;
1268                         if (strlen(str) != f->strlen)
1269                                 post_start = pre_len + f->strlen;
1270
1271                         if (pre_len) {
1272                                 strncpy(dst, buf, pre_len);
1273                                 dst += pre_len;
1274                                 dst_left -= pre_len;
1275                         }
1276
1277                         switch (f->key) {
1278                         case FPRE_JOBNAME: {
1279                                 int ret;
1280
1281                                 ret = snprintf(dst, dst_left, "%s", jobname);
1282                                 if (ret < 0)
1283                                         break;
1284                                 else if (ret > dst_left) {
1285                                         log_err("fio: truncated filename\n");
1286                                         dst += dst_left;
1287                                         dst_left = 0;
1288                                 } else {
1289                                         dst += ret;
1290                                         dst_left -= ret;
1291                                 }
1292                                 break;
1293                                 }
1294                         case FPRE_JOBNUM: {
1295                                 int ret;
1296
1297                                 ret = snprintf(dst, dst_left, "%d", jobnum);
1298                                 if (ret < 0)
1299                                         break;
1300                                 else if (ret > dst_left) {
1301                                         log_err("fio: truncated filename\n");
1302                                         dst += dst_left;
1303                                         dst_left = 0;
1304                                 } else {
1305                                         dst += ret;
1306                                         dst_left -= ret;
1307                                 }
1308                                 break;
1309                                 }
1310                         case FPRE_FILENUM: {
1311                                 int ret;
1312
1313                                 ret = snprintf(dst, dst_left, "%d", filenum);
1314                                 if (ret < 0)
1315                                         break;
1316                                 else if (ret > dst_left) {
1317                                         log_err("fio: truncated filename\n");
1318                                         dst += dst_left;
1319                                         dst_left = 0;
1320                                 } else {
1321                                         dst += ret;
1322                                         dst_left -= ret;
1323                                 }
1324                                 break;
1325                                 }
1326                         default:
1327                                 assert(0);
1328                                 break;
1329                         }
1330
1331                         if (post_start)
1332                                 strncpy(dst, buf + post_start, dst_left);
1333
1334                         strncpy(buf, copy, buf_size - 1);
1335                 } while (1);
1336         }
1337
1338         return buf;
1339 }
1340
1341 bool parse_dryrun(void)
1342 {
1343         return dump_cmdline || parse_only;
1344 }
1345
1346 static void gen_log_name(char *name, size_t size, const char *logtype,
1347                          const char *logname, unsigned int num,
1348                          const char *suf, int per_job)
1349 {
1350         if (per_job)
1351                 snprintf(name, size, "%s_%s.%d.%s", logname, logtype, num, suf);
1352         else
1353                 snprintf(name, size, "%s_%s.%s", logname, logtype, suf);
1354 }
1355
1356 static int check_waitees(char *waitee)
1357 {
1358         struct thread_data *td;
1359         int i, ret = 0;
1360
1361         for_each_td(td, i) {
1362                 if (td->subjob_number)
1363                         continue;
1364
1365                 ret += !strcmp(td->o.name, waitee);
1366         }
1367
1368         return ret;
1369 }
1370
1371 static bool wait_for_ok(const char *jobname, struct thread_options *o)
1372 {
1373         int nw;
1374
1375         if (!o->wait_for)
1376                 return true;
1377
1378         if (!strcmp(jobname, o->wait_for)) {
1379                 log_err("%s: a job cannot wait for itself (wait_for=%s).\n",
1380                                 jobname, o->wait_for);
1381                 return false;
1382         }
1383
1384         if (!(nw = check_waitees(o->wait_for))) {
1385                 log_err("%s: waitee job %s unknown.\n", jobname, o->wait_for);
1386                 return false;
1387         }
1388
1389         if (nw > 1) {
1390                 log_err("%s: multiple waitees %s found,\n"
1391                         "please avoid duplicates when using wait_for option.\n",
1392                                 jobname, o->wait_for);
1393                 return false;
1394         }
1395
1396         return true;
1397 }
1398
1399 /*
1400  * Adds a job to the list of things todo. Sanitizes the various options
1401  * to make sure we don't have conflicts, and initializes various
1402  * members of td.
1403  */
1404 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1405                    int recursed, int client_type)
1406 {
1407         unsigned int i;
1408         char fname[PATH_MAX];
1409         int numjobs, file_alloced;
1410         struct thread_options *o = &td->o;
1411         char logname[PATH_MAX + 32];
1412
1413         /*
1414          * the def_thread is just for options, it's not a real job
1415          */
1416         if (td == &def_thread)
1417                 return 0;
1418
1419         init_flags(td);
1420
1421         /*
1422          * if we are just dumping the output command line, don't add the job
1423          */
1424         if (parse_dryrun()) {
1425                 put_job(td);
1426                 return 0;
1427         }
1428
1429         td->client_type = client_type;
1430
1431         if (profile_td_init(td))
1432                 goto err;
1433
1434         if (ioengine_load(td))
1435                 goto err;
1436
1437         file_alloced = 0;
1438         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1439                 file_alloced = 1;
1440
1441                 if (o->nr_files == 1 && exists_and_not_regfile(jobname))
1442                         add_file(td, jobname, job_add_num, 0);
1443                 else {
1444                         for (i = 0; i < o->nr_files; i++)
1445                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1446                 }
1447         }
1448
1449         if (fixup_options(td))
1450                 goto err;
1451
1452         /*
1453          * Belongs to fixup_options, but o->name is not necessarily set as yet
1454          */
1455         if (!wait_for_ok(jobname, o))
1456                 goto err;
1457
1458         flow_init_job(td);
1459
1460         /*
1461          * IO engines only need this for option callbacks, and the address may
1462          * change in subprocesses.
1463          */
1464         if (td->eo)
1465                 *(struct thread_data **)td->eo = NULL;
1466
1467         if (td_ioengine_flagged(td, FIO_DISKLESSIO)) {
1468                 struct fio_file *f;
1469
1470                 for_each_file(td, f, i)
1471                         f->real_file_size = -1ULL;
1472         }
1473
1474         td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
1475
1476         td->ts.clat_percentiles = o->clat_percentiles;
1477         td->ts.lat_percentiles = o->lat_percentiles;
1478         td->ts.percentile_precision = o->percentile_precision;
1479         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1480         td->ts.sig_figs = o->sig_figs;
1481
1482         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1483                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1484                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1485                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1486                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1487                 td->ts.iops_stat[i].min_val = ULONG_MAX;
1488         }
1489         td->ts.sync_stat.min_val = ULONG_MAX;
1490         td->ddir_seq_nr = o->ddir_seq_nr;
1491
1492         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1493                 prev_group_jobs = 0;
1494                 groupid++;
1495                 if (groupid == INT_MAX) {
1496                         log_err("fio: too many groups defined\n");
1497                         goto err;
1498                 }
1499         }
1500
1501         td->groupid = groupid;
1502         prev_group_jobs++;
1503
1504         if (setup_random_seeds(td)) {
1505                 td_verror(td, errno, "setup_random_seeds");
1506                 goto err;
1507         }
1508
1509         if (setup_rate(td))
1510                 goto err;
1511
1512         if (o->write_lat_log) {
1513                 struct log_params p = {
1514                         .td = td,
1515                         .avg_msec = o->log_avg_msec,
1516                         .hist_msec = o->log_hist_msec,
1517                         .hist_coarseness = o->log_hist_coarseness,
1518                         .log_type = IO_LOG_TYPE_LAT,
1519                         .log_offset = o->log_offset,
1520                         .log_gz = o->log_gz,
1521                         .log_gz_store = o->log_gz_store,
1522                 };
1523                 const char *pre = o->lat_log_file ? o->lat_log_file : o->name;
1524                 const char *suf;
1525
1526                 if (p.log_gz_store)
1527                         suf = "log.fz";
1528                 else
1529                         suf = "log";
1530
1531                 gen_log_name(logname, sizeof(logname), "lat", pre,
1532                                 td->thread_number, suf, o->per_job_logs);
1533                 setup_log(&td->lat_log, &p, logname);
1534
1535                 gen_log_name(logname, sizeof(logname), "slat", pre,
1536                                 td->thread_number, suf, o->per_job_logs);
1537                 setup_log(&td->slat_log, &p, logname);
1538
1539                 gen_log_name(logname, sizeof(logname), "clat", pre,
1540                                 td->thread_number, suf, o->per_job_logs);
1541                 setup_log(&td->clat_log, &p, logname);
1542         }
1543
1544         if (o->write_hist_log) {
1545                 struct log_params p = {
1546                         .td = td,
1547                         .avg_msec = o->log_avg_msec,
1548                         .hist_msec = o->log_hist_msec,
1549                         .hist_coarseness = o->log_hist_coarseness,
1550                         .log_type = IO_LOG_TYPE_HIST,
1551                         .log_offset = o->log_offset,
1552                         .log_gz = o->log_gz,
1553                         .log_gz_store = o->log_gz_store,
1554                 };
1555                 const char *pre = o->hist_log_file ? o->hist_log_file : o->name;
1556                 const char *suf;
1557
1558 #ifndef CONFIG_ZLIB
1559                 if (td->client_type) {
1560                         log_err("fio: --write_hist_log requires zlib in client/server mode\n");
1561                         goto err;
1562                 }
1563 #endif
1564
1565                 if (p.log_gz_store)
1566                         suf = "log.fz";
1567                 else
1568                         suf = "log";
1569
1570                 gen_log_name(logname, sizeof(logname), "clat_hist", pre,
1571                                 td->thread_number, suf, o->per_job_logs);
1572                 setup_log(&td->clat_hist_log, &p, logname);
1573         }
1574
1575         if (o->write_bw_log) {
1576                 struct log_params p = {
1577                         .td = td,
1578                         .avg_msec = o->log_avg_msec,
1579                         .hist_msec = o->log_hist_msec,
1580                         .hist_coarseness = o->log_hist_coarseness,
1581                         .log_type = IO_LOG_TYPE_BW,
1582                         .log_offset = o->log_offset,
1583                         .log_gz = o->log_gz,
1584                         .log_gz_store = o->log_gz_store,
1585                 };
1586                 const char *pre = o->bw_log_file ? o->bw_log_file : o->name;
1587                 const char *suf;
1588
1589                 if (fio_option_is_set(o, bw_avg_time))
1590                         p.avg_msec = min(o->log_avg_msec, o->bw_avg_time);
1591                 else
1592                         o->bw_avg_time = p.avg_msec;
1593
1594                 p.hist_msec = o->log_hist_msec;
1595                 p.hist_coarseness = o->log_hist_coarseness;
1596
1597                 if (p.log_gz_store)
1598                         suf = "log.fz";
1599                 else
1600                         suf = "log";
1601
1602                 gen_log_name(logname, sizeof(logname), "bw", pre,
1603                                 td->thread_number, suf, o->per_job_logs);
1604                 setup_log(&td->bw_log, &p, logname);
1605         }
1606         if (o->write_iops_log) {
1607                 struct log_params p = {
1608                         .td = td,
1609                         .avg_msec = o->log_avg_msec,
1610                         .hist_msec = o->log_hist_msec,
1611                         .hist_coarseness = o->log_hist_coarseness,
1612                         .log_type = IO_LOG_TYPE_IOPS,
1613                         .log_offset = o->log_offset,
1614                         .log_gz = o->log_gz,
1615                         .log_gz_store = o->log_gz_store,
1616                 };
1617                 const char *pre = o->iops_log_file ? o->iops_log_file : o->name;
1618                 const char *suf;
1619
1620                 if (fio_option_is_set(o, iops_avg_time))
1621                         p.avg_msec = min(o->log_avg_msec, o->iops_avg_time);
1622                 else
1623                         o->iops_avg_time = p.avg_msec;
1624
1625                 p.hist_msec = o->log_hist_msec;
1626                 p.hist_coarseness = o->log_hist_coarseness;
1627
1628                 if (p.log_gz_store)
1629                         suf = "log.fz";
1630                 else
1631                         suf = "log";
1632
1633                 gen_log_name(logname, sizeof(logname), "iops", pre,
1634                                 td->thread_number, suf, o->per_job_logs);
1635                 setup_log(&td->iops_log, &p, logname);
1636         }
1637
1638         if (!o->name)
1639                 o->name = strdup(jobname);
1640
1641         if (output_format & FIO_OUTPUT_NORMAL) {
1642                 if (!job_add_num) {
1643                         if (is_backend && !recursed)
1644                                 fio_server_send_add_job(td);
1645
1646                         if (!td_ioengine_flagged(td, FIO_NOIO)) {
1647                                 char *c1, *c2, *c3, *c4;
1648                                 char *c5 = NULL, *c6 = NULL;
1649                                 int i2p = is_power_of_2(o->kb_base);
1650
1651                                 c1 = num2str(o->min_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1652                                 c2 = num2str(o->max_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1653                                 c3 = num2str(o->min_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1654                                 c4 = num2str(o->max_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1655
1656                                 if (!o->bs_is_seq_rand) {
1657                                         c5 = num2str(o->min_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1658                                         c6 = num2str(o->max_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1659                                 }
1660
1661                                 log_info("%s: (g=%d): rw=%s, ", td->o.name,
1662                                                         td->groupid,
1663                                                         ddir_str(o->td_ddir));
1664
1665                                 if (o->bs_is_seq_rand)
1666                                         log_info("bs=(R) %s-%s, (W) %s-%s, bs_is_seq_rand, ",
1667                                                         c1, c2, c3, c4);
1668                                 else
1669                                         log_info("bs=(R) %s-%s, (W) %s-%s, (T) %s-%s, ",
1670                                                         c1, c2, c3, c4, c5, c6);
1671
1672                                 log_info("ioengine=%s, iodepth=%u\n",
1673                                                 td->io_ops->name, o->iodepth);
1674
1675                                 free(c1);
1676                                 free(c2);
1677                                 free(c3);
1678                                 free(c4);
1679                                 free(c5);
1680                                 free(c6);
1681                         }
1682                 } else if (job_add_num == 1)
1683                         log_info("...\n");
1684         }
1685
1686         if (td_steadystate_init(td))
1687                 goto err;
1688
1689         /*
1690          * recurse add identical jobs, clear numjobs and stonewall options
1691          * as they don't apply to sub-jobs
1692          */
1693         numjobs = o->numjobs;
1694         while (--numjobs) {
1695                 struct thread_data *td_new = get_new_job(false, td, true, jobname);
1696
1697                 if (!td_new)
1698                         goto err;
1699
1700                 td_new->o.numjobs = 1;
1701                 td_new->o.stonewall = 0;
1702                 td_new->o.new_group = 0;
1703                 td_new->subjob_number = numjobs;
1704                 td_new->o.ss_dur = o->ss_dur * 1000000l;
1705                 td_new->o.ss_limit = o->ss_limit;
1706
1707                 if (file_alloced) {
1708                         if (td_new->files) {
1709                                 struct fio_file *f;
1710                                 for_each_file(td_new, f, i) {
1711                                         if (f->file_name)
1712                                                 sfree(f->file_name);
1713                                         sfree(f);
1714                                 }
1715                                 free(td_new->files);
1716                                 td_new->files = NULL;
1717                         }
1718                         td_new->files_index = 0;
1719                         td_new->files_size = 0;
1720                         if (td_new->o.filename) {
1721                                 free(td_new->o.filename);
1722                                 td_new->o.filename = NULL;
1723                         }
1724                 }
1725
1726                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1727                         goto err;
1728         }
1729
1730         return 0;
1731 err:
1732         put_job(td);
1733         return -1;
1734 }
1735
1736 /*
1737  * Parse as if 'o' was a command line
1738  */
1739 void add_job_opts(const char **o, int client_type)
1740 {
1741         struct thread_data *td, *td_parent;
1742         int i, in_global = 1;
1743         char jobname[32];
1744
1745         i = 0;
1746         td_parent = td = NULL;
1747         while (o[i]) {
1748                 if (!strncmp(o[i], "name", 4)) {
1749                         in_global = 0;
1750                         if (td)
1751                                 add_job(td, jobname, 0, 0, client_type);
1752                         td = NULL;
1753                         sprintf(jobname, "%s", o[i] + 5);
1754                 }
1755                 if (in_global && !td_parent)
1756                         td_parent = get_new_job(true, &def_thread, false, jobname);
1757                 else if (!in_global && !td) {
1758                         if (!td_parent)
1759                                 td_parent = &def_thread;
1760                         td = get_new_job(false, td_parent, false, jobname);
1761                 }
1762                 if (in_global)
1763                         fio_options_parse(td_parent, (char **) &o[i], 1);
1764                 else
1765                         fio_options_parse(td, (char **) &o[i], 1);
1766                 i++;
1767         }
1768
1769         if (td)
1770                 add_job(td, jobname, 0, 0, client_type);
1771 }
1772
1773 static int skip_this_section(const char *name)
1774 {
1775         int i;
1776
1777         if (!nr_job_sections)
1778                 return 0;
1779         if (!strncmp(name, "global", 6))
1780                 return 0;
1781
1782         for (i = 0; i < nr_job_sections; i++)
1783                 if (!strcmp(job_sections[i], name))
1784                         return 0;
1785
1786         return 1;
1787 }
1788
1789 static int is_empty_or_comment(char *line)
1790 {
1791         unsigned int i;
1792
1793         for (i = 0; i < strlen(line); i++) {
1794                 if (line[i] == ';')
1795                         return 1;
1796                 if (line[i] == '#')
1797                         return 1;
1798                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1799                         return 0;
1800         }
1801
1802         return 1;
1803 }
1804
1805 /*
1806  * This is our [ini] type file parser.
1807  */
1808 static int __parse_jobs_ini(struct thread_data *td,
1809                 char *file, int is_buf, int stonewall_flag, int type,
1810                 int nested, char *name, char ***popts, int *aopts, int *nopts)
1811 {
1812         bool global = false;
1813         char *string;
1814         FILE *f;
1815         char *p;
1816         int ret = 0, stonewall;
1817         int first_sect = 1;
1818         int skip_fgets = 0;
1819         int inside_skip = 0;
1820         char **opts;
1821         int i, alloc_opts, num_opts;
1822
1823         dprint(FD_PARSE, "Parsing ini file %s\n", file);
1824         assert(td || !nested);
1825
1826         if (is_buf)
1827                 f = NULL;
1828         else {
1829                 if (!strcmp(file, "-"))
1830                         f = stdin;
1831                 else
1832                         f = fopen(file, "r");
1833
1834                 if (!f) {
1835                         int __err = errno;
1836
1837                         log_err("fio: unable to open '%s' job file\n", file);
1838                         if (td)
1839                                 td_verror(td, __err, "job file open");
1840                         return 1;
1841                 }
1842         }
1843
1844         string = malloc(4096);
1845
1846         /*
1847          * it's really 256 + small bit, 280 should suffice
1848          */
1849         if (!nested) {
1850                 name = malloc(280);
1851                 memset(name, 0, 280);
1852         }
1853
1854         opts = NULL;
1855         if (nested && popts) {
1856                 opts = *popts;
1857                 alloc_opts = *aopts;
1858                 num_opts = *nopts;
1859         }
1860
1861         if (!opts) {
1862                 alloc_opts = 8;
1863                 opts = malloc(sizeof(char *) * alloc_opts);
1864                 num_opts = 0;
1865         }
1866
1867         stonewall = stonewall_flag;
1868         do {
1869                 /*
1870                  * if skip_fgets is set, we already have loaded a line we
1871                  * haven't handled.
1872                  */
1873                 if (!skip_fgets) {
1874                         if (is_buf)
1875                                 p = strsep(&file, "\n");
1876                         else
1877                                 p = fgets(string, 4096, f);
1878                         if (!p)
1879                                 break;
1880                 }
1881
1882                 skip_fgets = 0;
1883                 strip_blank_front(&p);
1884                 strip_blank_end(p);
1885
1886                 dprint(FD_PARSE, "%s\n", p);
1887                 if (is_empty_or_comment(p))
1888                         continue;
1889
1890                 if (!nested) {
1891                         if (sscanf(p, "[%255[^\n]]", name) != 1) {
1892                                 if (inside_skip)
1893                                         continue;
1894
1895                                 log_err("fio: option <%s> outside of "
1896                                         "[] job section\n", p);
1897                                 ret = 1;
1898                                 break;
1899                         }
1900
1901                         name[strlen(name) - 1] = '\0';
1902
1903                         if (skip_this_section(name)) {
1904                                 inside_skip = 1;
1905                                 continue;
1906                         } else
1907                                 inside_skip = 0;
1908
1909                         dprint(FD_PARSE, "Parsing section [%s]\n", name);
1910
1911                         global = !strncmp(name, "global", 6);
1912
1913                         if (dump_cmdline) {
1914                                 if (first_sect)
1915                                         log_info("fio ");
1916                                 if (!global)
1917                                         log_info("--name=%s ", name);
1918                                 first_sect = 0;
1919                         }
1920
1921                         td = get_new_job(global, &def_thread, false, name);
1922                         if (!td) {
1923                                 ret = 1;
1924                                 break;
1925                         }
1926
1927                         /*
1928                          * Separate multiple job files by a stonewall
1929                          */
1930                         if (!global && stonewall) {
1931                                 td->o.stonewall = stonewall;
1932                                 stonewall = 0;
1933                         }
1934
1935                         num_opts = 0;
1936                         memset(opts, 0, alloc_opts * sizeof(char *));
1937                 }
1938                 else
1939                         skip_fgets = 1;
1940
1941                 while (1) {
1942                         if (!skip_fgets) {
1943                                 if (is_buf)
1944                                         p = strsep(&file, "\n");
1945                                 else
1946                                         p = fgets(string, 4096, f);
1947                                 if (!p)
1948                                         break;
1949                                 dprint(FD_PARSE, "%s", p);
1950                         }
1951                         else
1952                                 skip_fgets = 0;
1953
1954                         if (is_empty_or_comment(p))
1955                                 continue;
1956
1957                         strip_blank_front(&p);
1958
1959                         /*
1960                          * new section, break out and make sure we don't
1961                          * fgets() a new line at the top.
1962                          */
1963                         if (p[0] == '[') {
1964                                 if (nested) {
1965                                         log_err("No new sections in included files\n");
1966                                         return 1;
1967                                 }
1968
1969                                 skip_fgets = 1;
1970                                 break;
1971                         }
1972
1973                         strip_blank_end(p);
1974
1975                         if (!strncmp(p, "include", strlen("include"))) {
1976                                 char *filename = p + strlen("include") + 1,
1977                                         *ts, *full_fn = NULL;
1978
1979                                 /*
1980                                  * Allow for the include filename
1981                                  * specification to be relative.
1982                                  */
1983                                 if (access(filename, F_OK) &&
1984                                     (ts = strrchr(file, '/'))) {
1985                                         int len = ts - file +
1986                                                 strlen(filename) + 2;
1987
1988                                         if (!(full_fn = calloc(1, len))) {
1989                                                 ret = ENOMEM;
1990                                                 break;
1991                                         }
1992
1993                                         strncpy(full_fn,
1994                                                 file, (ts - file) + 1);
1995                                         strncpy(full_fn + (ts - file) + 1,
1996                                                 filename, strlen(filename));
1997                                         full_fn[len - 1] = 0;
1998                                         filename = full_fn;
1999                                 }
2000
2001                                 ret = __parse_jobs_ini(td, filename, is_buf,
2002                                                        stonewall_flag, type, 1,
2003                                                        name, &opts,
2004                                                        &alloc_opts, &num_opts);
2005
2006                                 if (ret) {
2007                                         log_err("Error %d while parsing "
2008                                                 "include file %s\n",
2009                                                 ret, filename);
2010                                 }
2011
2012                                 if (full_fn)
2013                                         free(full_fn);
2014
2015                                 if (ret)
2016                                         break;
2017
2018                                 continue;
2019                         }
2020
2021                         if (num_opts == alloc_opts) {
2022                                 alloc_opts <<= 1;
2023                                 opts = realloc(opts,
2024                                                 alloc_opts * sizeof(char *));
2025                         }
2026
2027                         opts[num_opts] = strdup(p);
2028                         num_opts++;
2029                 }
2030
2031                 if (nested) {
2032                         *popts = opts;
2033                         *aopts = alloc_opts;
2034                         *nopts = num_opts;
2035                         goto out;
2036                 }
2037
2038                 ret = fio_options_parse(td, opts, num_opts);
2039                 if (!ret) {
2040                         if (dump_cmdline)
2041                                 dump_opt_list(td);
2042
2043                         ret = add_job(td, name, 0, 0, type);
2044                 } else {
2045                         log_err("fio: job %s dropped\n", name);
2046                         put_job(td);
2047                 }
2048
2049                 for (i = 0; i < num_opts; i++)
2050                         free(opts[i]);
2051                 num_opts = 0;
2052         } while (!ret);
2053
2054         if (dump_cmdline)
2055                 log_info("\n");
2056
2057         i = 0;
2058         while (i < nr_job_sections) {
2059                 free(job_sections[i]);
2060                 i++;
2061         }
2062
2063         free(opts);
2064 out:
2065         free(string);
2066         if (!nested)
2067                 free(name);
2068         if (!is_buf && f != stdin)
2069                 fclose(f);
2070         return ret;
2071 }
2072
2073 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
2074 {
2075         return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
2076                         0, NULL, NULL, NULL, NULL);
2077 }
2078
2079 static int fill_def_thread(void)
2080 {
2081         memset(&def_thread, 0, sizeof(def_thread));
2082         INIT_FLIST_HEAD(&def_thread.opt_list);
2083
2084         fio_getaffinity(getpid(), &def_thread.o.cpumask);
2085         def_thread.o.error_dump = 1;
2086
2087         /*
2088          * fill default options
2089          */
2090         fio_fill_default_options(&def_thread);
2091         return 0;
2092 }
2093
2094 static void show_debug_categories(void)
2095 {
2096 #ifdef FIO_INC_DEBUG
2097         struct debug_level *dl = &debug_levels[0];
2098         int curlen, first = 1;
2099
2100         curlen = 0;
2101         while (dl->name) {
2102                 int has_next = (dl + 1)->name != NULL;
2103
2104                 if (first || curlen + strlen(dl->name) >= 80) {
2105                         if (!first) {
2106                                 printf("\n");
2107                                 curlen = 0;
2108                         }
2109                         curlen += printf("\t\t\t%s", dl->name);
2110                         curlen += 3 * (8 - 1);
2111                         if (has_next)
2112                                 curlen += printf(",");
2113                 } else {
2114                         curlen += printf("%s", dl->name);
2115                         if (has_next)
2116                                 curlen += printf(",");
2117                 }
2118                 dl++;
2119                 first = 0;
2120         }
2121         printf("\n");
2122 #endif
2123 }
2124
2125 /*
2126  * Following options aren't printed by usage().
2127  * --append-terse - Equivalent to --output-format=terse, see f6a7df53.
2128  * --latency-log - Deprecated option.
2129  */
2130 static void usage(const char *name)
2131 {
2132         printf("%s\n", fio_version_string);
2133         printf("%s [options] [job options] <job file(s)>\n", name);
2134         printf("  --debug=options\tEnable debug logging. May be one/more of:\n");
2135         show_debug_categories();
2136         printf("  --parse-only\t\tParse options only, don't start any IO\n");
2137         printf("  --output\t\tWrite output to file\n");
2138         printf("  --bandwidth-log\tGenerate aggregate bandwidth logs\n");
2139         printf("  --minimal\t\tMinimal (terse) output\n");
2140         printf("  --output-format=type\tOutput format (terse,json,json+,normal)\n");
2141         printf("  --terse-version=type\tSet terse version output format"
2142                 " (default 3, or 2 or 4)\n");
2143         printf("  --version\t\tPrint version info and exit\n");
2144         printf("  --help\t\tPrint this page\n");
2145         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
2146         printf("  --crctest=[type]\tTest speed of checksum functions\n");
2147         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
2148                 " them\n");
2149         printf("  --enghelp=engine\tPrint ioengine help, or list"
2150                 " available ioengines\n");
2151         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
2152                 " cmd\n");
2153         printf("  --showcmd\t\tTurn a job file into command line options\n");
2154         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
2155         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
2156         printf("  --eta-newline=time\tForce a new line for every 'time'");
2157         printf(" period passed\n");
2158         printf("  --status-interval=t\tForce full status dump every");
2159         printf(" 't' period passed\n");
2160         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
2161                 " writes\n");
2162         printf("  --section=name\tOnly run specified section in job file,"
2163                 " multiple sections can be specified\n");
2164         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
2165                 " (def 16384)\n");
2166         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
2167         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
2168         printf("  --server=args\t\tStart a backend fio server\n");
2169         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
2170         printf("  --client=hostname\tTalk to remote backend(s) fio server at hostname\n");
2171         printf("  --remote-config=file\tTell fio server to load this local job file\n");
2172         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
2173                 "\t\t\t(option=system,percpu) or run unit work\n"
2174                 "\t\t\tcalibration only (option=calibrate)\n");
2175 #ifdef CONFIG_ZLIB
2176         printf("  --inflate-log=log\tInflate and output compressed log\n");
2177 #endif
2178         printf("  --trigger-file=file\tExecute trigger cmd when file exists\n");
2179         printf("  --trigger-timeout=t\tExecute trigger at this time\n");
2180         printf("  --trigger=cmd\t\tSet this command as local trigger\n");
2181         printf("  --trigger-remote=cmd\tSet this command as remote trigger\n");
2182         printf("  --aux-path=path\tUse this path for fio state generated files\n");
2183         printf("\nFio was written by Jens Axboe <axboe@kernel.dk>\n");
2184 }
2185
2186 #ifdef FIO_INC_DEBUG
2187 struct debug_level debug_levels[] = {
2188         { .name = "process",
2189           .help = "Process creation/exit logging",
2190           .shift = FD_PROCESS,
2191         },
2192         { .name = "file",
2193           .help = "File related action logging",
2194           .shift = FD_FILE,
2195         },
2196         { .name = "io",
2197           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
2198           .shift = FD_IO,
2199         },
2200         { .name = "mem",
2201           .help = "Memory allocation/freeing logging",
2202           .shift = FD_MEM,
2203         },
2204         { .name = "blktrace",
2205           .help = "blktrace action logging",
2206           .shift = FD_BLKTRACE,
2207         },
2208         { .name = "verify",
2209           .help = "IO verification action logging",
2210           .shift = FD_VERIFY,
2211         },
2212         { .name = "random",
2213           .help = "Random generation logging",
2214           .shift = FD_RANDOM,
2215         },
2216         { .name = "parse",
2217           .help = "Parser logging",
2218           .shift = FD_PARSE,
2219         },
2220         { .name = "diskutil",
2221           .help = "Disk utility logging actions",
2222           .shift = FD_DISKUTIL,
2223         },
2224         { .name = "job",
2225           .help = "Logging related to creating/destroying jobs",
2226           .shift = FD_JOB,
2227         },
2228         { .name = "mutex",
2229           .help = "Mutex logging",
2230           .shift = FD_MUTEX
2231         },
2232         { .name = "profile",
2233           .help = "Logging related to profiles",
2234           .shift = FD_PROFILE,
2235         },
2236         { .name = "time",
2237           .help = "Logging related to time keeping functions",
2238           .shift = FD_TIME,
2239         },
2240         { .name = "net",
2241           .help = "Network logging",
2242           .shift = FD_NET,
2243         },
2244         { .name = "rate",
2245           .help = "Rate logging",
2246           .shift = FD_RATE,
2247         },
2248         { .name = "compress",
2249           .help = "Log compression logging",
2250           .shift = FD_COMPRESS,
2251         },
2252         { .name = "steadystate",
2253           .help = "Steady state detection logging",
2254           .shift = FD_STEADYSTATE,
2255         },
2256         { .name = "helperthread",
2257           .help = "Helper thread logging",
2258           .shift = FD_HELPERTHREAD,
2259         },
2260         { .name = NULL, },
2261 };
2262
2263 static int set_debug(const char *string)
2264 {
2265         struct debug_level *dl;
2266         char *p = (char *) string;
2267         char *opt;
2268         int i;
2269
2270         if (!string)
2271                 return 0;
2272
2273         if (!strcmp(string, "?") || !strcmp(string, "help")) {
2274                 log_info("fio: dumping debug options:");
2275                 for (i = 0; debug_levels[i].name; i++) {
2276                         dl = &debug_levels[i];
2277                         log_info("%s,", dl->name);
2278                 }
2279                 log_info("all\n");
2280                 return 1;
2281         }
2282
2283         while ((opt = strsep(&p, ",")) != NULL) {
2284                 int found = 0;
2285
2286                 if (!strncmp(opt, "all", 3)) {
2287                         log_info("fio: set all debug options\n");
2288                         fio_debug = ~0UL;
2289                         continue;
2290                 }
2291
2292                 for (i = 0; debug_levels[i].name; i++) {
2293                         dl = &debug_levels[i];
2294                         found = !strncmp(opt, dl->name, strlen(dl->name));
2295                         if (!found)
2296                                 continue;
2297
2298                         if (dl->shift == FD_JOB) {
2299                                 opt = strchr(opt, ':');
2300                                 if (!opt) {
2301                                         log_err("fio: missing job number\n");
2302                                         break;
2303                                 }
2304                                 opt++;
2305                                 fio_debug_jobno = atoi(opt);
2306                                 log_info("fio: set debug jobno %d\n",
2307                                                         fio_debug_jobno);
2308                         } else {
2309                                 log_info("fio: set debug option %s\n", opt);
2310                                 fio_debug |= (1UL << dl->shift);
2311                         }
2312                         break;
2313                 }
2314
2315                 if (!found)
2316                         log_err("fio: debug mask %s not found\n", opt);
2317         }
2318         return 0;
2319 }
2320 #else
2321 static int set_debug(const char *string)
2322 {
2323         log_err("fio: debug tracing not included in build\n");
2324         return 1;
2325 }
2326 #endif
2327
2328 static void fio_options_fill_optstring(void)
2329 {
2330         char *ostr = cmd_optstr;
2331         int i, c;
2332
2333         c = i = 0;
2334         while (l_opts[i].name) {
2335                 ostr[c++] = l_opts[i].val;
2336                 if (l_opts[i].has_arg == required_argument)
2337                         ostr[c++] = ':';
2338                 else if (l_opts[i].has_arg == optional_argument) {
2339                         ostr[c++] = ':';
2340                         ostr[c++] = ':';
2341                 }
2342                 i++;
2343         }
2344         ostr[c] = '\0';
2345 }
2346
2347 static int client_flag_set(char c)
2348 {
2349         int i;
2350
2351         i = 0;
2352         while (l_opts[i].name) {
2353                 int val = l_opts[i].val;
2354
2355                 if (c == (val & 0xff))
2356                         return (val & FIO_CLIENT_FLAG);
2357
2358                 i++;
2359         }
2360
2361         return 0;
2362 }
2363
2364 static void parse_cmd_client(void *client, char *opt)
2365 {
2366         fio_client_add_cmd_option(client, opt);
2367 }
2368
2369 static void show_closest_option(const char *name)
2370 {
2371         int best_option, best_distance;
2372         int i, distance;
2373
2374         while (*name == '-')
2375                 name++;
2376
2377         best_option = -1;
2378         best_distance = INT_MAX;
2379         i = 0;
2380         while (l_opts[i].name) {
2381                 distance = string_distance(name, l_opts[i].name);
2382                 if (distance < best_distance) {
2383                         best_distance = distance;
2384                         best_option = i;
2385                 }
2386                 i++;
2387         }
2388
2389         if (best_option != -1 && string_distance_ok(name, best_distance))
2390                 log_err("Did you mean %s?\n", l_opts[best_option].name);
2391 }
2392
2393 static int parse_output_format(const char *optarg)
2394 {
2395         char *p, *orig, *opt;
2396         int ret = 0;
2397
2398         p = orig = strdup(optarg);
2399
2400         output_format = 0;
2401
2402         while ((opt = strsep(&p, ",")) != NULL) {
2403                 if (!strcmp(opt, "minimal") ||
2404                     !strcmp(opt, "terse") ||
2405                     !strcmp(opt, "csv"))
2406                         output_format |= FIO_OUTPUT_TERSE;
2407                 else if (!strcmp(opt, "json"))
2408                         output_format |= FIO_OUTPUT_JSON;
2409                 else if (!strcmp(opt, "json+"))
2410                         output_format |= (FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS);
2411                 else if (!strcmp(opt, "normal"))
2412                         output_format |= FIO_OUTPUT_NORMAL;
2413                 else {
2414                         log_err("fio: invalid output format %s\n", opt);
2415                         ret = 1;
2416                         break;
2417                 }
2418         }
2419
2420         free(orig);
2421         return ret;
2422 }
2423
2424 int parse_cmd_line(int argc, char *argv[], int client_type)
2425 {
2426         struct thread_data *td = NULL;
2427         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
2428         char *ostr = cmd_optstr;
2429         char *pid_file = NULL;
2430         void *cur_client = NULL;
2431         int backend = 0;
2432
2433         /*
2434          * Reset optind handling, since we may call this multiple times
2435          * for the backend.
2436          */
2437         optind = 1;
2438
2439         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
2440                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
2441                         parse_cmd_client(cur_client, argv[optind - 1]);
2442                         c &= ~FIO_CLIENT_FLAG;
2443                 }
2444
2445                 switch (c) {
2446                 case 'a':
2447                         smalloc_pool_size = atoi(optarg);
2448                         smalloc_pool_size <<= 10;
2449                         sinit();
2450                         break;
2451                 case 'l':
2452                         log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
2453                         do_exit++;
2454                         exit_val = 1;
2455                         break;
2456                 case 'b':
2457                         write_bw_log = 1;
2458                         break;
2459                 case 'o': {
2460                         FILE *tmp;
2461
2462                         if (f_out && f_out != stdout)
2463                                 fclose(f_out);
2464
2465                         tmp = fopen(optarg, "w+");
2466                         if (!tmp) {
2467                                 log_err("fio: output file open error: %s\n", strerror(errno));
2468                                 exit_val = 1;
2469                                 do_exit++;
2470                                 break;
2471                         }
2472                         f_err = f_out = tmp;
2473                         break;
2474                         }
2475                 case 'm':
2476                         output_format = FIO_OUTPUT_TERSE;
2477                         break;
2478                 case 'F':
2479                         if (parse_output_format(optarg)) {
2480                                 log_err("fio: failed parsing output-format\n");
2481                                 exit_val = 1;
2482                                 do_exit++;
2483                                 break;
2484                         }
2485                         break;
2486                 case 'f':
2487                         output_format |= FIO_OUTPUT_TERSE;
2488                         break;
2489                 case 'h':
2490                         did_arg = true;
2491                         if (!cur_client) {
2492                                 usage(argv[0]);
2493                                 do_exit++;
2494                         }
2495                         break;
2496                 case 'c':
2497                         did_arg = true;
2498                         if (!cur_client) {
2499                                 fio_show_option_help(optarg);
2500                                 do_exit++;
2501                         }
2502                         break;
2503                 case 'i':
2504                         did_arg = true;
2505                         if (!cur_client) {
2506                                 fio_show_ioengine_help(optarg);
2507                                 do_exit++;
2508                         }
2509                         break;
2510                 case 's':
2511                         did_arg = true;
2512                         dump_cmdline = 1;
2513                         break;
2514                 case 'r':
2515                         read_only = 1;
2516                         break;
2517                 case 'v':
2518                         did_arg = true;
2519                         if (!cur_client) {
2520                                 log_info("%s\n", fio_version_string);
2521                                 do_exit++;
2522                         }
2523                         break;
2524                 case 'V':
2525                         terse_version = atoi(optarg);
2526                         if (!(terse_version >= 2 && terse_version <= 5)) {
2527                                 log_err("fio: bad terse version format\n");
2528                                 exit_val = 1;
2529                                 do_exit++;
2530                         }
2531                         break;
2532                 case 'e':
2533                         if (!strcmp("always", optarg))
2534                                 eta_print = FIO_ETA_ALWAYS;
2535                         else if (!strcmp("never", optarg))
2536                                 eta_print = FIO_ETA_NEVER;
2537                         break;
2538                 case 'E': {
2539                         long long t = 0;
2540
2541                         if (check_str_time(optarg, &t, 1)) {
2542                                 log_err("fio: failed parsing eta time %s\n", optarg);
2543                                 exit_val = 1;
2544                                 do_exit++;
2545                                 break;
2546                         }
2547                         eta_new_line = t / 1000;
2548                         if (!eta_new_line) {
2549                                 log_err("fio: eta new line time too short\n");
2550                                 exit_val = 1;
2551                                 do_exit++;
2552                         }
2553                         break;
2554                         }
2555                 case 'O': {
2556                         long long t = 0;
2557
2558                         if (check_str_time(optarg, &t, 1)) {
2559                                 log_err("fio: failed parsing eta interval %s\n", optarg);
2560                                 exit_val = 1;
2561                                 do_exit++;
2562                                 break;
2563                         }
2564                         eta_interval_msec = t / 1000;
2565                         if (eta_interval_msec < DISK_UTIL_MSEC) {
2566                                 log_err("fio: eta interval time too short (%umsec min)\n", DISK_UTIL_MSEC);
2567                                 exit_val = 1;
2568                                 do_exit++;
2569                         }
2570                         break;
2571                         }
2572                 case 'd':
2573                         if (set_debug(optarg))
2574                                 do_exit++;
2575                         break;
2576                 case 'P':
2577                         did_arg = true;
2578                         parse_only = 1;
2579                         break;
2580                 case 'x': {
2581                         size_t new_size;
2582
2583                         if (!strcmp(optarg, "global")) {
2584                                 log_err("fio: can't use global as only "
2585                                         "section\n");
2586                                 do_exit++;
2587                                 exit_val = 1;
2588                                 break;
2589                         }
2590                         new_size = (nr_job_sections + 1) * sizeof(char *);
2591                         job_sections = realloc(job_sections, new_size);
2592                         job_sections[nr_job_sections] = strdup(optarg);
2593                         nr_job_sections++;
2594                         break;
2595                         }
2596 #ifdef CONFIG_ZLIB
2597                 case 'X':
2598                         exit_val = iolog_file_inflate(optarg);
2599                         did_arg = true;
2600                         do_exit++;
2601                         break;
2602 #endif
2603                 case 'p':
2604                         did_arg = true;
2605                         if (exec_profile)
2606                                 free(exec_profile);
2607                         exec_profile = strdup(optarg);
2608                         break;
2609                 case FIO_GETOPT_JOB: {
2610                         const char *opt = l_opts[lidx].name;
2611                         char *val = optarg;
2612
2613                         if (!strncmp(opt, "name", 4) && td) {
2614                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2615                                 if (ret)
2616                                         goto out_free;
2617                                 td = NULL;
2618                                 did_arg = true;
2619                         }
2620                         if (!td) {
2621                                 int is_section = !strncmp(opt, "name", 4);
2622                                 int global = 0;
2623
2624                                 if (!is_section || !strncmp(val, "global", 6))
2625                                         global = 1;
2626
2627                                 if (is_section && skip_this_section(val))
2628                                         continue;
2629
2630                                 td = get_new_job(global, &def_thread, true, NULL);
2631                                 if (!td || ioengine_load(td)) {
2632                                         if (td) {
2633                                                 put_job(td);
2634                                                 td = NULL;
2635                                         }
2636                                         do_exit++;
2637                                         exit_val = 1;
2638                                         break;
2639                                 }
2640                                 fio_options_set_ioengine_opts(l_opts, td);
2641                         }
2642
2643                         if ((!val || !strlen(val)) &&
2644                             l_opts[lidx].has_arg == required_argument) {
2645                                 log_err("fio: option %s requires an argument\n", opt);
2646                                 ret = 1;
2647                         } else
2648                                 ret = fio_cmd_option_parse(td, opt, val);
2649
2650                         if (ret) {
2651                                 if (td) {
2652                                         put_job(td);
2653                                         td = NULL;
2654                                 }
2655                                 do_exit++;
2656                                 exit_val = 1;
2657                         }
2658
2659                         if (!ret && !strcmp(opt, "ioengine")) {
2660                                 if (ioengine_load(td)) {
2661                                         put_job(td);
2662                                         td = NULL;
2663                                         do_exit++;
2664                                         exit_val = 1;
2665                                         break;
2666                                 }
2667                                 fio_options_set_ioengine_opts(l_opts, td);
2668                         }
2669                         break;
2670                 }
2671                 case FIO_GETOPT_IOENGINE: {
2672                         const char *opt = l_opts[lidx].name;
2673                         char *val = optarg;
2674
2675                         if (!td)
2676                                 break;
2677
2678                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
2679                         break;
2680                 }
2681                 case 'w':
2682                         warnings_fatal = 1;
2683                         break;
2684                 case 'j':
2685                         max_jobs = atoi(optarg);
2686                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2687                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
2688                                 do_exit++;
2689                                 exit_val = 1;
2690                         }
2691                         break;
2692                 case 'S':
2693                         did_arg = true;
2694 #ifndef CONFIG_NO_SHM
2695                         if (nr_clients) {
2696                                 log_err("fio: can't be both client and server\n");
2697                                 do_exit++;
2698                                 exit_val = 1;
2699                                 break;
2700                         }
2701                         if (optarg)
2702                                 fio_server_set_arg(optarg);
2703                         is_backend = 1;
2704                         backend = 1;
2705 #else
2706                         log_err("fio: client/server requires SHM support\n");
2707                         do_exit++;
2708                         exit_val = 1;
2709 #endif
2710                         break;
2711                 case 'D':
2712                         if (pid_file)
2713                                 free(pid_file);
2714                         pid_file = strdup(optarg);
2715                         break;
2716                 case 'I':
2717                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
2718                                 /* exit on error and calibration only */
2719                                 did_arg = true;
2720                                 do_exit++;
2721                                 if (ret == -1)
2722                                         exit_val = 1;
2723                         }
2724                         break;
2725                 case 'C':
2726                         did_arg = true;
2727                         if (is_backend) {
2728                                 log_err("fio: can't be both client and server\n");
2729                                 do_exit++;
2730                                 exit_val = 1;
2731                                 break;
2732                         }
2733                         /* if --client parameter contains a pathname */
2734                         if (0 == access(optarg, R_OK)) {
2735                                 /* file contains a list of host addrs or names */
2736                                 char hostaddr[PATH_MAX] = {0};
2737                                 char formatstr[8];
2738                                 FILE * hostf = fopen(optarg, "r");
2739                                 if (!hostf) {
2740                                         log_err("fio: could not open client list file %s for read\n", optarg);
2741                                         do_exit++;
2742                                         exit_val = 1;
2743                                         break;
2744                                 }
2745                                 sprintf(formatstr, "%%%ds", PATH_MAX - 1);
2746                                 /*
2747                                  * read at most PATH_MAX-1 chars from each
2748                                  * record in this file
2749                                  */
2750                                 while (fscanf(hostf, formatstr, hostaddr) == 1) {
2751                                         /* expect EVERY host in file to be valid */
2752                                         if (fio_client_add(&fio_client_ops, hostaddr, &cur_client)) {
2753                                                 log_err("fio: failed adding client %s from file %s\n", hostaddr, optarg);
2754                                                 do_exit++;
2755                                                 exit_val = 1;
2756                                                 break;
2757                                         }
2758                                 }
2759                                 fclose(hostf);
2760                                 break; /* no possibility of job file for "this client only" */
2761                         }
2762                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2763                                 log_err("fio: failed adding client %s\n", optarg);
2764                                 do_exit++;
2765                                 exit_val = 1;
2766                                 break;
2767                         }
2768                         /*
2769                          * If the next argument exists and isn't an option,
2770                          * assume it's a job file for this client only.
2771                          */
2772                         while (optind < argc) {
2773                                 if (!strncmp(argv[optind], "--", 2) ||
2774                                     !strncmp(argv[optind], "-", 1))
2775                                         break;
2776
2777                                 if (fio_client_add_ini_file(cur_client, argv[optind], false))
2778                                         break;
2779                                 optind++;
2780                         }
2781                         break;
2782                 case 'R':
2783                         did_arg = true;
2784                         if (fio_client_add_ini_file(cur_client, optarg, true)) {
2785                                 do_exit++;
2786                                 exit_val = 1;
2787                         }
2788                         break;
2789                 case 'T':
2790                         did_arg = true;
2791                         do_exit++;
2792                         exit_val = fio_monotonic_clocktest(1);
2793                         break;
2794                 case 'G':
2795                         did_arg = true;
2796                         do_exit++;
2797                         exit_val = fio_crctest(optarg);
2798                         break;
2799                 case 'M':
2800                         did_arg = true;
2801                         do_exit++;
2802                         exit_val = fio_memcpy_test(optarg);
2803                         break;
2804                 case 'L': {
2805                         long long val;
2806
2807                         if (check_str_time(optarg, &val, 1)) {
2808                                 log_err("fio: failed parsing time %s\n", optarg);
2809                                 do_exit++;
2810                                 exit_val = 1;
2811                                 break;
2812                         }
2813                         if (val < 1000) {
2814                                 log_err("fio: status interval too small\n");
2815                                 do_exit++;
2816                                 exit_val = 1;
2817                         }
2818                         status_interval = val / 1000;
2819                         break;
2820                         }
2821                 case 'W':
2822                         if (trigger_file)
2823                                 free(trigger_file);
2824                         trigger_file = strdup(optarg);
2825                         break;
2826                 case 'H':
2827                         if (trigger_cmd)
2828                                 free(trigger_cmd);
2829                         trigger_cmd = strdup(optarg);
2830                         break;
2831                 case 'J':
2832                         if (trigger_remote_cmd)
2833                                 free(trigger_remote_cmd);
2834                         trigger_remote_cmd = strdup(optarg);
2835                         break;
2836                 case 'K':
2837                         if (aux_path)
2838                                 free(aux_path);
2839                         aux_path = strdup(optarg);
2840                         break;
2841                 case 'B':
2842                         if (check_str_time(optarg, &trigger_timeout, 1)) {
2843                                 log_err("fio: failed parsing time %s\n", optarg);
2844                                 do_exit++;
2845                                 exit_val = 1;
2846                         }
2847                         trigger_timeout /= 1000000;
2848                         break;
2849                 case '?':
2850                         log_err("%s: unrecognized option '%s'\n", argv[0],
2851                                                         argv[optind - 1]);
2852                         show_closest_option(argv[optind - 1]);
2853                 default:
2854                         do_exit++;
2855                         exit_val = 1;
2856                         break;
2857                 }
2858                 if (do_exit)
2859                         break;
2860         }
2861
2862         if (do_exit && !(is_backend || nr_clients))
2863                 exit(exit_val);
2864
2865         if (nr_clients && fio_clients_connect())
2866                 exit(1);
2867
2868         if (is_backend && backend)
2869                 return fio_start_server(pid_file);
2870         else if (pid_file)
2871                 free(pid_file);
2872
2873         if (td) {
2874                 if (!ret) {
2875                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2876                         if (ret)
2877                                 exit(1);
2878                 }
2879         }
2880
2881         while (!ret && optind < argc) {
2882                 ini_idx++;
2883                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2884                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2885                 optind++;
2886         }
2887
2888 out_free:
2889         return ini_idx;
2890 }
2891
2892 int fio_init_options(void)
2893 {
2894         f_out = stdout;
2895         f_err = stderr;
2896
2897         fio_options_fill_optstring();
2898         fio_options_dup_and_init(l_opts);
2899
2900         atexit(free_shm);
2901
2902         if (fill_def_thread())
2903                 return 1;
2904
2905         return 0;
2906 }
2907
2908 extern int fio_check_options(struct thread_options *);
2909
2910 int parse_options(int argc, char *argv[])
2911 {
2912         const int type = FIO_CLIENT_TYPE_CLI;
2913         int job_files, i;
2914
2915         if (fio_init_options())
2916                 return 1;
2917         if (fio_test_cconv(&def_thread.o))
2918                 log_err("fio: failed internal cconv test\n");
2919
2920         job_files = parse_cmd_line(argc, argv, type);
2921
2922         if (job_files > 0) {
2923                 for (i = 0; i < job_files; i++) {
2924                         if (i && fill_def_thread())
2925                                 return 1;
2926                         if (nr_clients) {
2927                                 if (fio_clients_send_ini(ini_file[i]))
2928                                         return 1;
2929                                 free(ini_file[i]);
2930                         } else if (!is_backend) {
2931                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2932                                         return 1;
2933                                 free(ini_file[i]);
2934                         }
2935                 }
2936         } else if (nr_clients) {
2937                 if (fill_def_thread())
2938                         return 1;
2939                 if (fio_clients_send_ini(NULL))
2940                         return 1;
2941         }
2942
2943         free(ini_file);
2944         fio_options_free(&def_thread);
2945         filesetup_mem_free();
2946
2947         if (!thread_number) {
2948                 if (parse_dryrun())
2949                         return 0;
2950                 if (exec_profile)
2951                         return 0;
2952                 if (is_backend || nr_clients)
2953                         return 0;
2954                 if (did_arg)
2955                         return 0;
2956
2957                 log_err("No job(s) defined\n\n");
2958                 usage(argv[0]);
2959                 return 1;
2960         }
2961
2962         if (output_format & FIO_OUTPUT_NORMAL)
2963                 log_info("%s\n", fio_version_string);
2964
2965         return 0;
2966 }
2967
2968 void options_default_fill(struct thread_options *o)
2969 {
2970         memcpy(o, &def_thread.o, sizeof(*o));
2971 }
2972
2973 struct thread_data *get_global_options(void)
2974 {
2975         return &def_thread;
2976 }