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 <ctype.h>
   8 #include <string.h>
   9 #include <errno.h>
  10 #include <sys/ipc.h>
  11 #include <sys/types.h>
  12 #include <dlfcn.h>
  13 #ifdef CONFIG_VALGRIND_DEV
  14 #include <valgrind/drd.h>
  15 #else
  16 #define DRD_IGNORE_VAR(x) do { } while (0)
  17 #endif
  18
  19 #include "fio.h"
  20 #ifndef FIO_NO_HAVE_SHM_H
  21 #include <sys/shm.h>
  22 #endif
  23
  24 #include "parse.h"
  25 #include "smalloc.h"
  26 #include "filehash.h"
  27 #include "verify.h"
  28 #include "profile.h"
  29 #include "server.h"
  30 #include "idletime.h"
  31 #include "filelock.h"
  32 #include "steadystate.h"
  33 #include "blktrace.h"
  34
  35 #include "oslib/asprintf.h"
  36 #include "oslib/getopt.h"
  37 #include "oslib/strcasestr.h"
  38
  39 #include "crc/test.h"
  40 #include "lib/pow2.h"
  41 #include "lib/memcpy.h"
  42
  43 const char fio_version_string[] = FIO_VERSION;
  44
  45 #define FIO_RANDSEED            (0xb1899bedUL)
  46
  47 static char **ini_file;
  48 static int max_jobs = FIO_MAX_JOBS;
  49 static bool dump_cmdline;
  50 static bool parse_only;
  51 static bool merge_blktrace_only;
  52
  53 static struct thread_data def_thread;
  54 struct thread_segment segments[REAL_MAX_SEG];
  55 static char **job_sections;
  56 static int nr_job_sections;
  57
  58 bool exitall_on_terminate = false;
  59 int output_format = FIO_OUTPUT_NORMAL;
  60 int eta_print = FIO_ETA_AUTO;
  61 unsigned int eta_interval_msec = 1000;
  62 int eta_new_line = 0;
  63 FILE *f_out = NULL;
  64 FILE *f_err = NULL;
  65 char *exec_profile = NULL;
  66 int warnings_fatal = 0;
  67 int terse_version = 3;
  68 bool is_backend = false;
  69 bool is_local_backend = false;
  70 int nr_clients = 0;
  71 bool log_syslog = false;
  72
  73 bool write_bw_log = false;
  74 bool read_only = false;
  75 int status_interval = 0;
  76
  77 char *trigger_file = NULL;
  78 long long trigger_timeout = 0;
  79 char *trigger_cmd = NULL;
  80 char *trigger_remote_cmd = NULL;
  81
  82 char *aux_path = NULL;
  83
  84 static int prev_group_jobs;
  85
  86 unsigned long fio_debug = 0;
  87 unsigned int fio_debug_jobno = -1;
  88 unsigned int *fio_debug_jobp = NULL;
  89 unsigned int *fio_warned = NULL;
  90
  91 static char cmd_optstr[256];
  92 static bool did_arg;
  93
  94 #define FIO_CLIENT_FLAG         (1 << 16)
  95
  96 /*
  97  * Command line options. These will contain the above, plus a few
  98  * extra that only pertain to fio itself and not jobs.
  99  */
 100 static struct option l_opts[FIO_NR_OPTIONS] = {
 101         {
 102                 .name           = (char *) "output",
 103                 .has_arg        = required_argument,
 104                 .val            = 'o' | FIO_CLIENT_FLAG,
 105         },
 106         {
 107                 .name           = (char *) "latency-log",
 108                 .has_arg        = required_argument,
 109                 .val            = 'l' | FIO_CLIENT_FLAG,
 110         },
 111         {
 112                 .name           = (char *) "bandwidth-log",
 113                 .has_arg        = no_argument,
 114                 .val            = 'b' | FIO_CLIENT_FLAG,
 115         },
 116         {
 117                 .name           = (char *) "minimal",
 118                 .has_arg        = no_argument,
 119                 .val            = 'm' | FIO_CLIENT_FLAG,
 120         },
 121         {
 122                 .name           = (char *) "output-format",
 123                 .has_arg        = required_argument,
 124                 .val            = 'F' | FIO_CLIENT_FLAG,
 125         },
 126         {
 127                 .name           = (char *) "append-terse",
 128                 .has_arg        = optional_argument,
 129                 .val            = 'f',
 130         },
 131         {
 132                 .name           = (char *) "version",
 133                 .has_arg        = no_argument,
 134                 .val            = 'v' | FIO_CLIENT_FLAG,
 135         },
 136         {
 137                 .name           = (char *) "help",
 138                 .has_arg        = no_argument,
 139                 .val            = 'h' | FIO_CLIENT_FLAG,
 140         },
 141         {
 142                 .name           = (char *) "cmdhelp",
 143                 .has_arg        = optional_argument,
 144                 .val            = 'c' | FIO_CLIENT_FLAG,
 145         },
 146         {
 147                 .name           = (char *) "enghelp",
 148                 .has_arg        = optional_argument,
 149                 .val            = 'i' | FIO_CLIENT_FLAG,
 150         },
 151         {
 152                 .name           = (char *) "showcmd",
 153                 .has_arg        = no_argument,
 154                 .val            = 's' | FIO_CLIENT_FLAG,
 155         },
 156         {
 157                 .name           = (char *) "readonly",
 158                 .has_arg        = no_argument,
 159                 .val            = 'r' | FIO_CLIENT_FLAG,
 160         },
 161         {
 162                 .name           = (char *) "eta",
 163                 .has_arg        = required_argument,
 164                 .val            = 'e' | FIO_CLIENT_FLAG,
 165         },
 166         {
 167                 .name           = (char *) "eta-interval",
 168                 .has_arg        = required_argument,
 169                 .val            = 'O' | FIO_CLIENT_FLAG,
 170         },
 171         {
 172                 .name           = (char *) "eta-newline",
 173                 .has_arg        = required_argument,
 174                 .val            = 'E' | FIO_CLIENT_FLAG,
 175         },
 176         {
 177                 .name           = (char *) "debug",
 178                 .has_arg        = required_argument,
 179                 .val            = 'd' | FIO_CLIENT_FLAG,
 180         },
 181         {
 182                 .name           = (char *) "parse-only",
 183                 .has_arg        = no_argument,
 184                 .val            = 'P' | FIO_CLIENT_FLAG,
 185         },
 186         {
 187                 .name           = (char *) "section",
 188                 .has_arg        = required_argument,
 189                 .val            = 'x' | FIO_CLIENT_FLAG,
 190         },
 191 #ifdef CONFIG_ZLIB
 192         {
 193                 .name           = (char *) "inflate-log",
 194                 .has_arg        = required_argument,
 195                 .val            = 'X' | FIO_CLIENT_FLAG,
 196         },
 197 #endif
 198         {
 199                 .name           = (char *) "alloc-size",
 200                 .has_arg        = required_argument,
 201                 .val            = 'a' | FIO_CLIENT_FLAG,
 202         },
 203         {
 204                 .name           = (char *) "profile",
 205                 .has_arg        = required_argument,
 206                 .val            = 'p' | FIO_CLIENT_FLAG,
 207         },
 208         {
 209                 .name           = (char *) "warnings-fatal",
 210                 .has_arg        = no_argument,
 211                 .val            = 'w' | FIO_CLIENT_FLAG,
 212         },
 213         {
 214                 .name           = (char *) "max-jobs",
 215                 .has_arg        = required_argument,
 216                 .val            = 'j' | FIO_CLIENT_FLAG,
 217         },
 218         {
 219                 .name           = (char *) "terse-version",
 220                 .has_arg        = required_argument,
 221                 .val            = 'V' | FIO_CLIENT_FLAG,
 222         },
 223         {
 224                 .name           = (char *) "server",
 225                 .has_arg        = optional_argument,
 226                 .val            = 'S',
 227         },
 228         {       .name           = (char *) "daemonize",
 229                 .has_arg        = required_argument,
 230                 .val            = 'D',
 231         },
 232         {
 233                 .name           = (char *) "client",
 234                 .has_arg        = required_argument,
 235                 .val            = 'C',
 236         },
 237         {
 238                 .name           = (char *) "remote-config",
 239                 .has_arg        = required_argument,
 240                 .val            = 'R',
 241         },
 242         {
 243                 .name           = (char *) "cpuclock-test",
 244                 .has_arg        = no_argument,
 245                 .val            = 'T',
 246         },
 247         {
 248                 .name           = (char *) "crctest",
 249                 .has_arg        = optional_argument,
 250                 .val            = 'G',
 251         },
 252         {
 253                 .name           = (char *) "memcpytest",
 254                 .has_arg        = optional_argument,
 255                 .val            = 'M',
 256         },
 257         {
 258                 .name           = (char *) "idle-prof",
 259                 .has_arg        = required_argument,
 260                 .val            = 'I',
 261         },
 262         {
 263                 .name           = (char *) "status-interval",
 264                 .has_arg        = required_argument,
 265                 .val            = 'L' | FIO_CLIENT_FLAG,
 266         },
 267         {
 268                 .name           = (char *) "trigger-file",
 269                 .has_arg        = required_argument,
 270                 .val            = 'W',
 271         },
 272         {
 273                 .name           = (char *) "trigger-timeout",
 274                 .has_arg        = required_argument,
 275                 .val            = 'B',
 276         },
 277         {
 278                 .name           = (char *) "trigger",
 279                 .has_arg        = required_argument,
 280                 .val            = 'H',
 281         },
 282         {
 283                 .name           = (char *) "trigger-remote",
 284                 .has_arg        = required_argument,
 285                 .val            = 'J',
 286         },
 287         {
 288                 .name           = (char *) "aux-path",
 289                 .has_arg        = required_argument,
 290                 .val            = 'K',
 291         },
 292         {
 293                 .name           = (char *) "merge-blktrace-only",
 294                 .has_arg        = no_argument,
 295                 .val            = 'A' | FIO_CLIENT_FLAG,
 296         },
 297         {
 298                 .name           = NULL,
 299         },
 300 };
 301
 302 void free_threads_shm(void)
 303 {
 304         if (segments[0].threads) {
 305                 void *tp = segments[0].threads;
 306 #ifndef CONFIG_NO_SHM
 307                 struct shmid_ds sbuf;
 308
 309                 segments[0].threads = NULL;
 310                 shmdt(tp);
 311                 shmctl(segments[0].shm_id, IPC_RMID, &sbuf);
 312                 segments[0].shm_id = -1;
 313 #else
 314                 segments[0].threads = NULL;
 315                 free(tp);
 316 #endif
 317         }
 318 }
 319
 320 static void free_shm(void)
 321 {
 322         if (segments[0].threads) {
 323                 flow_exit();
 324                 fio_debug_jobp = NULL;
 325                 fio_warned = NULL;
 326                 free_threads_shm();
 327         }
 328
 329         free(trigger_file);
 330         free(trigger_cmd);
 331         free(trigger_remote_cmd);
 332         trigger_file = trigger_cmd = trigger_remote_cmd = NULL;
 333
 334         options_free(fio_options, &def_thread.o);
 335         fio_filelock_exit();
 336         file_hash_exit();
 337         scleanup();
 338 }
 339
 340 /*
 341  * The thread area is shared between the main process and the job
 342  * threads/processes. So setup a shared memory segment that will hold
 343  * all the job info. We use the end of the region for keeping track of
 344  * open files across jobs, for file sharing.
 345  */
 346 static int setup_thread_area(void)
 347 {
 348         struct thread_segment *seg = &segments[0];
 349         int i;
 350
 351         if (seg->threads)
 352                 return 0;
 353
 354         /*
 355          * 1024 is too much on some machines, scale max_jobs if
 356          * we get a failure that looks like too large a shm segment
 357          */
 358         do {
 359                 size_t size = max_jobs * sizeof(struct thread_data);
 360
 361                 size += 2 * sizeof(unsigned int);
 362
 363 #ifndef CONFIG_NO_SHM
 364                 seg->shm_id = shmget(0, size, IPC_CREAT | 0600);
 365                 if (seg->shm_id != -1)
 366                         break;
 367                 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
 368                         perror("shmget");
 369                         break;
 370                 }
 371 #else
 372                 seg->threads = malloc(size);
 373                 if (seg->threads)
 374                         break;
 375 #endif
 376
 377                 max_jobs >>= 1;
 378         } while (max_jobs);
 379
 380 #ifndef CONFIG_NO_SHM
 381         if (seg->shm_id == -1)
 382                 return 1;
 383
 384         seg->threads = shmat(seg->shm_id, NULL, 0);
 385         if (seg->threads == (void *) -1) {
 386                 perror("shmat");
 387                 return 1;
 388         }
 389         if (shm_attach_to_open_removed())
 390                 shmctl(seg->shm_id, IPC_RMID, NULL);
 391 #endif
 392
 393         memset(seg->threads, 0, max_jobs * sizeof(struct thread_data));
 394         for (i = 0; i < max_jobs; i++)
 395                 DRD_IGNORE_VAR(seg->threads[i]);
 396         fio_debug_jobp = (unsigned int *)(seg->threads + max_jobs);
 397         *fio_debug_jobp = -1;
 398         fio_warned = fio_debug_jobp + 1;
 399         *fio_warned = 0;
 400
 401         flow_init();
 402
 403         return 0;
 404 }
 405
 406 static void dump_print_option(struct print_option *p)
 407 {
 408         const char *delim;
 409
 410         if (!strcmp("description", p->name))
 411                 delim = "\"";
 412         else
 413                 delim = "";
 414
 415         log_info("--%s%s", p->name, p->value ? "" : " ");
 416         if (p->value)
 417                 log_info("=%s%s%s ", delim, p->value, delim);
 418 }
 419
 420 static void dump_opt_list(struct thread_data *td)
 421 {
 422         struct flist_head *entry;
 423         struct print_option *p;
 424
 425         if (flist_empty(&td->opt_list))
 426                 return;
 427
 428         flist_for_each(entry, &td->opt_list) {
 429                 p = flist_entry(entry, struct print_option, list);
 430                 dump_print_option(p);
 431         }
 432 }
 433
 434 static void fio_dump_options_free(struct thread_data *td)
 435 {
 436         while (!flist_empty(&td->opt_list)) {
 437                 struct print_option *p;
 438
 439                 p = flist_first_entry(&td->opt_list, struct print_option, list);
 440                 flist_del_init(&p->list);
 441                 free(p->name);
 442                 free(p->value);
 443                 free(p);
 444         }
 445 }
 446
 447 static void copy_opt_list(struct thread_data *dst, struct thread_data *src)
 448 {
 449         struct flist_head *entry;
 450
 451         if (flist_empty(&src->opt_list))
 452                 return;
 453
 454         flist_for_each(entry, &src->opt_list) {
 455                 struct print_option *srcp, *dstp;
 456
 457                 srcp = flist_entry(entry, struct print_option, list);
 458                 dstp = malloc(sizeof(*dstp));
 459                 dstp->name = strdup(srcp->name);
 460                 if (srcp->value)
 461                         dstp->value = strdup(srcp->value);
 462                 else
 463                         dstp->value = NULL;
 464                 flist_add_tail(&dstp->list, &dst->opt_list);
 465         }
 466 }
 467
 468 /*
 469  * Return a free job structure.
 470  */
 471 static struct thread_data *get_new_job(bool global, struct thread_data *parent,
 472                                        bool preserve_eo, const char *jobname)
 473 {
 474         struct thread_data *td;
 475
 476         if (global)
 477                 return &def_thread;
 478         if (setup_thread_area()) {
 479                 log_err("error: failed to setup shm segment\n");
 480                 return NULL;
 481         }
 482         if (thread_number >= max_jobs) {
 483                 log_err("error: maximum number of jobs (%d) reached.\n",
 484                                 max_jobs);
 485                 return NULL;
 486         }
 487
 488         td = &segments[0].threads[thread_number++];
 489         *td = *parent;
 490
 491         INIT_FLIST_HEAD(&td->opt_list);
 492         if (parent != &def_thread)
 493                 copy_opt_list(td, parent);
 494
 495         td->io_ops = NULL;
 496         td->io_ops_init = 0;
 497         if (!preserve_eo)
 498                 td->eo = NULL;
 499
 500         td->o.uid = td->o.gid = -1U;
 501
 502         dup_files(td, parent);
 503         fio_options_mem_dupe(td);
 504
 505         profile_add_hooks(td);
 506
 507         td->thread_number = thread_number;
 508         td->subjob_number = 0;
 509
 510         if (jobname)
 511                 td->o.name = strdup(jobname);
 512
 513         if (!parent->o.group_reporting || parent == &def_thread)
 514                 stat_number++;
 515
 516         return td;
 517 }
 518
 519 static void put_job(struct thread_data *td)
 520 {
 521         if (td == &def_thread)
 522                 return;
 523
 524         profile_td_exit(td);
 525         flow_exit_job(td);
 526
 527         if (td->error)
 528                 log_info("fio: %s\n", td->verror);
 529
 530         fio_options_free(td);
 531         fio_dump_options_free(td);
 532         if (td->io_ops)
 533                 free_ioengine(td);
 534
 535         if (td->o.name)
 536                 free(td->o.name);
 537
 538         memset(td, 0, sizeof(*td));
 539         thread_number--;
 540 }
 541
 542 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 543 {
 544         unsigned long long bs = td->o.min_bs[ddir];
 545
 546         assert(ddir_rw(ddir));
 547
 548         if (td->o.rate[ddir])
 549                 td->rate_bps[ddir] = td->o.rate[ddir];
 550         else
 551                 td->rate_bps[ddir] = (uint64_t) td->o.rate_iops[ddir] * bs;
 552
 553         if (!td->rate_bps[ddir]) {
 554                 log_err("rate lower than supported\n");
 555                 return -1;
 556         }
 557
 558         td->rate_next_io_time[ddir] = 0;
 559         td->rate_io_issue_bytes[ddir] = 0;
 560         td->last_usec[ddir] = 0;
 561         return 0;
 562 }
 563
 564 static int setup_rate(struct thread_data *td)
 565 {
 566         int ret = 0;
 567
 568         for_each_rw_ddir(ddir) {
 569                 if (td->o.rate[ddir] || td->o.rate_iops[ddir]) {
 570                         ret |= __setup_rate(td, ddir);
 571                 }
 572         }
 573         return ret;
 574 }
 575
 576 static int fixed_block_size(struct thread_options *o)
 577 {
 578         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 579                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 580                 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
 581                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
 582                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
 583 }
 584
 585 /*
 586  * <3 Johannes
 587  */
 588 static unsigned int gcd(unsigned int m, unsigned int n)
 589 {
 590         if (!n)
 591                 return m;
 592
 593         return gcd(n, m % n);
 594 }
 595
 596 /*
 597  * Lazy way of fixing up options that depend on each other. We could also
 598  * define option callback handlers, but this is easier.
 599  */
 600 static int fixup_options(struct thread_data *td)
 601 {
 602         struct thread_options *o = &td->o;
 603         int ret = 0;
 604
 605         if (read_only && (td_write(td) || td_trim(td))) {
 606                 log_err("fio: trim and write operations are not allowed"
 607                          " with the --readonly parameter.\n");
 608                 ret |= 1;
 609         }
 610
 611 #ifndef CONFIG_PSHARED
 612         if (!o->use_thread) {
 613                 log_info("fio: this platform does not support process shared"
 614                          " mutexes, forcing use of threads. Use the 'thread'"
 615                          " option to get rid of this warning.\n");
 616                 o->use_thread = 1;
 617                 ret |= warnings_fatal;
 618         }
 619 #endif
 620
 621         if (o->write_iolog_file && o->read_iolog_file) {
 622                 log_err("fio: read iolog overrides write_iolog\n");
 623                 free(o->write_iolog_file);
 624                 o->write_iolog_file = NULL;
 625                 ret |= warnings_fatal;
 626         }
 627
 628         if (o->zone_mode == ZONE_MODE_NONE && o->zone_size) {
 629                 log_err("fio: --zonemode=none and --zonesize are not compatible.\n");
 630                 ret |= 1;
 631         }
 632
 633         if (o->zone_mode == ZONE_MODE_STRIDED && !o->zone_size) {
 634                 log_err("fio: --zonesize must be specified when using --zonemode=strided.\n");
 635                 ret |= 1;
 636         }
 637
 638         if (o->zone_mode == ZONE_MODE_NOT_SPECIFIED) {
 639                 if (o->zone_size)
 640                         o->zone_mode = ZONE_MODE_STRIDED;
 641                 else
 642                         o->zone_mode = ZONE_MODE_NONE;
 643         }
 644
 645         /*
 646          * Strided zone mode only really works with 1 file.
 647          */
 648         if (o->zone_mode == ZONE_MODE_STRIDED && o->open_files > 1)
 649                 o->zone_mode = ZONE_MODE_NONE;
 650
 651         /*
 652          * If zone_range isn't specified, backward compatibility dictates it
 653          * should be made equal to zone_size.
 654          */
 655         if (o->zone_mode == ZONE_MODE_STRIDED && !o->zone_range)
 656                 o->zone_range = o->zone_size;
 657
 658         /*
 659          * Reads can do overwrites, we always need to pre-create the file
 660          */
 661         if (td_read(td))
 662                 o->overwrite = 1;
 663
 664         for_each_rw_ddir(ddir) {
 665                 if (!o->min_bs[ddir])
 666                         o->min_bs[ddir] = o->bs[ddir];
 667                 if (!o->max_bs[ddir])
 668                         o->max_bs[ddir] = o->bs[ddir];
 669         }
 670
 671         o->rw_min_bs = -1;
 672         for_each_rw_ddir(ddir) {
 673                 o->rw_min_bs = min(o->rw_min_bs, o->min_bs[ddir]);
 674         }
 675
 676         /*
 677          * For random IO, allow blockalign offset other than min_bs.
 678          */
 679         for_each_rw_ddir(ddir) {
 680                 if (!o->ba[ddir] || !td_random(td))
 681                         o->ba[ddir] = o->min_bs[ddir];
 682         }
 683
 684         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 685             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
 686             o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
 687             !o->norandommap) {
 688                 log_err("fio: Any use of blockalign= turns off randommap\n");
 689                 o->norandommap = 1;
 690                 ret |= warnings_fatal;
 691         }
 692
 693         if (!o->file_size_high)
 694                 o->file_size_high = o->file_size_low;
 695
 696         if (o->start_delay_high) {
 697                 if (!o->start_delay_orig)
 698                         o->start_delay_orig = o->start_delay;
 699                 o->start_delay = rand_between(&td->delay_state,
 700                                                 o->start_delay_orig,
 701                                                 o->start_delay_high);
 702         }
 703
 704         if (o->norandommap && o->verify != VERIFY_NONE
 705             && !fixed_block_size(o))  {
 706                 log_err("fio: norandommap given for variable block sizes, "
 707                         "verify limited\n");
 708                 ret |= warnings_fatal;
 709         }
 710         if (o->bs_unaligned && (o->odirect || td_ioengine_flagged(td, FIO_RAWIO)))
 711                 log_err("fio: bs_unaligned may not work with raw io\n");
 712
 713         /*
 714          * thinktime_spin must be less than thinktime
 715          */
 716         if (o->thinktime_spin > o->thinktime)
 717                 o->thinktime_spin = o->thinktime;
 718
 719         /*
 720          * The low water mark cannot be bigger than the iodepth
 721          */
 722         if (o->iodepth_low > o->iodepth || !o->iodepth_low)
 723                 o->iodepth_low = o->iodepth;
 724
 725         /*
 726          * If batch number isn't set, default to the same as iodepth
 727          */
 728         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 729                 o->iodepth_batch = o->iodepth;
 730
 731         /*
 732          * If max batch complete number isn't set or set incorrectly,
 733          * default to the same as iodepth_batch_complete_min
 734          */
 735         if (o->iodepth_batch_complete_min > o->iodepth_batch_complete_max)
 736                 o->iodepth_batch_complete_max = o->iodepth_batch_complete_min;
 737
 738         /*
 739          * There's no need to check for in-flight overlapping IOs if the job
 740          * isn't changing data or the maximum iodepth is guaranteed to be 1
 741          * when we are not in offload mode
 742          */
 743         if (o->serialize_overlap && !(td->flags & TD_F_READ_IOLOG) &&
 744             (!(td_write(td) || td_trim(td)) || o->iodepth == 1) &&
 745             o->io_submit_mode != IO_MODE_OFFLOAD)
 746                 o->serialize_overlap = 0;
 747
 748         if (o->nr_files > td->files_index)
 749                 o->nr_files = td->files_index;
 750
 751         if (o->open_files > o->nr_files || !o->open_files)
 752                 o->open_files = o->nr_files;
 753
 754         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
 755             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
 756             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 757             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 758                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 759                 ret |= 1;
 760         }
 761         for_each_rw_ddir(ddir) {
 762                 if ((o->rate[ddir] && (o->rate[ddir] < o->ratemin[ddir])) ||
 763                     (o->rate_iops[ddir] && (o->rate_iops[ddir] < o->rate_iops_min[ddir]))) {
 764                         log_err("fio: minimum rate exceeds rate, ddir %d\n", +ddir);
 765                         ret |= 1;
 766                 }
 767         }
 768
 769         if (!o->timeout && o->time_based) {
 770                 log_err("fio: time_based requires a runtime/timeout setting\n");
 771                 o->time_based = 0;
 772                 ret |= warnings_fatal;
 773         }
 774
 775         if (o->fill_device && !o->size)
 776                 o->size = -1ULL;
 777
 778         if (o->verify != VERIFY_NONE) {
 779                 if (td_write(td) && o->do_verify && o->numjobs > 1 &&
 780                     (o->filename ||
 781                      !(o->unique_filename &&
 782                        strstr(o->filename_format, "$jobname") &&
 783                        strstr(o->filename_format, "$jobnum") &&
 784                        strstr(o->filename_format, "$filenum")))) {
 785                         log_info("fio: multiple writers may overwrite blocks "
 786                                 "that belong to other jobs. This can cause "
 787                                 "verification failures.\n");
 788                         ret |= warnings_fatal;
 789                 }
 790
 791                 /*
 792                  * Warn if verification is requested but no verification of any
 793                  * kind can be started due to time constraints
 794                  */
 795                 if (td_write(td) && o->do_verify && o->timeout &&
 796                     o->time_based && !td_read(td) && !o->verify_backlog) {
 797                         log_info("fio: verification read phase will never "
 798                                  "start because write phase uses all of "
 799                                  "runtime\n");
 800                         ret |= warnings_fatal;
 801                 }
 802
 803                 if (!fio_option_is_set(o, refill_buffers))
 804                         o->refill_buffers = 1;
 805
 806                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 807                     !o->verify_interval)
 808                         o->verify_interval = o->min_bs[DDIR_WRITE];
 809
 810                 /*
 811                  * Verify interval must be smaller or equal to the
 812                  * write size.
 813                  */
 814                 if (o->verify_interval > o->min_bs[DDIR_WRITE])
 815                         o->verify_interval = o->min_bs[DDIR_WRITE];
 816                 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
 817                         o->verify_interval = o->min_bs[DDIR_READ];
 818
 819                 /*
 820                  * Verify interval must be a factor of both min and max
 821                  * write size
 822                  */
 823                 if (!o->verify_interval ||
 824                     (o->min_bs[DDIR_WRITE] % o->verify_interval) ||
 825                     (o->max_bs[DDIR_WRITE] % o->verify_interval))
 826                         o->verify_interval = gcd(o->min_bs[DDIR_WRITE],
 827                                                         o->max_bs[DDIR_WRITE]);
 828         }
 829
 830         if (o->pre_read) {
 831                 if (o->invalidate_cache)
 832                         o->invalidate_cache = 0;
 833                 if (td_ioengine_flagged(td, FIO_PIPEIO)) {
 834                         log_info("fio: cannot pre-read files with an IO engine"
 835                                  " that isn't seekable. Pre-read disabled.\n");
 836                         ret |= warnings_fatal;
 837                 }
 838         }
 839
 840         if (o->unit_base == N2S_NONE) {
 841                 if (td_ioengine_flagged(td, FIO_BIT_BASED))
 842                         o->unit_base = N2S_BITPERSEC;
 843                 else
 844                         o->unit_base = N2S_BYTEPERSEC;
 845         }
 846
 847 #ifndef CONFIG_FDATASYNC
 848         if (o->fdatasync_blocks) {
 849                 log_info("fio: this platform does not support fdatasync()"
 850                          " falling back to using fsync().  Use the 'fsync'"
 851                          " option instead of 'fdatasync' to get rid of"
 852                          " this warning\n");
 853                 o->fsync_blocks = o->fdatasync_blocks;
 854                 o->fdatasync_blocks = 0;
 855                 ret |= warnings_fatal;
 856         }
 857 #endif
 858
 859 #ifdef WIN32
 860         /*
 861          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 862          * so fail if we're passed those flags
 863          */
 864         if (td_ioengine_flagged(td, FIO_SYNCIO) && (o->odirect || o->sync_io)) {
 865                 log_err("fio: Windows does not support direct or non-buffered io with"
 866                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 867                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 868                 ret |= 1;
 869         }
 870 #endif
 871
 872         /*
 873          * For fully compressible data, just zero them at init time.
 874          * It's faster than repeatedly filling it. For non-zero
 875          * compression, we should have refill_buffers set. Set it, unless
 876          * the job file already changed it.
 877          */
 878         if (o->compress_percentage) {
 879                 if (o->compress_percentage == 100) {
 880                         o->zero_buffers = 1;
 881                         o->compress_percentage = 0;
 882                 } else if (!fio_option_is_set(o, refill_buffers)) {
 883                         o->refill_buffers = 1;
 884                         td->flags |= TD_F_REFILL_BUFFERS;
 885                 }
 886         }
 887
 888         /*
 889          * Using a non-uniform random distribution excludes usage of
 890          * a random map
 891          */
 892         if (o->random_distribution != FIO_RAND_DIST_RANDOM)
 893                 o->norandommap = 1;
 894
 895         /*
 896          * If size is set but less than the min block size, complain
 897          */
 898         if (o->size && o->size < td_min_bs(td)) {
 899                 log_err("fio: size too small, must not be less than minimum block size: %llu < %llu\n",
 900                         (unsigned long long) o->size, td_min_bs(td));
 901                 ret |= 1;
 902         }
 903
 904         /*
 905          * O_ATOMIC implies O_DIRECT
 906          */
 907         if (o->oatomic)
 908                 o->odirect = 1;
 909
 910         /*
 911          * If randseed is set, that overrides randrepeat
 912          */
 913         if (fio_option_is_set(o, rand_seed))
 914                 o->rand_repeatable = 0;
 915
 916         if (td_ioengine_flagged(td, FIO_NOEXTEND) && o->file_append) {
 917                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
 918                 ret |= 1;
 919         }
 920
 921         if (fio_option_is_set(o, gtod_cpu)) {
 922                 fio_gtod_init();
 923                 fio_gtod_set_cpu(o->gtod_cpu);
 924                 fio_gtod_offload = 1;
 925         }
 926
 927         td->loops = o->loops;
 928         if (!td->loops)
 929                 td->loops = 1;
 930
 931         if (o->block_error_hist && o->nr_files != 1) {
 932                 log_err("fio: block error histogram only available "
 933                         "with a single file per job, but %d files "
 934                         "provided\n", o->nr_files);
 935                 ret |= 1;
 936         }
 937
 938         if (o->disable_lat)
 939                 o->lat_percentiles = 0;
 940         if (o->disable_clat)
 941                 o->clat_percentiles = 0;
 942         if (o->disable_slat)
 943                 o->slat_percentiles = 0;
 944
 945         /*
 946          * Fix these up to be nsec internally
 947          */
 948         o->max_latency *= 1000ULL;
 949         o->latency_target *= 1000ULL;
 950
 951         return ret;
 952 }
 953
 954 static void init_rand_file_service(struct thread_data *td)
 955 {
 956         unsigned long nranges = td->o.nr_files << FIO_FSERVICE_SHIFT;
 957         const unsigned int seed = td->rand_seeds[FIO_RAND_FILE_OFF];
 958
 959         if (td->o.file_service_type == FIO_FSERVICE_ZIPF) {
 960                 zipf_init(&td->next_file_zipf, nranges, td->zipf_theta, seed);
 961                 zipf_disable_hash(&td->next_file_zipf);
 962         } else if (td->o.file_service_type == FIO_FSERVICE_PARETO) {
 963                 pareto_init(&td->next_file_zipf, nranges, td->pareto_h, seed);
 964                 zipf_disable_hash(&td->next_file_zipf);
 965         } else if (td->o.file_service_type == FIO_FSERVICE_GAUSS) {
 966                 gauss_init(&td->next_file_gauss, nranges, td->gauss_dev, seed);
 967                 gauss_disable_hash(&td->next_file_gauss);
 968         }
 969 }
 970
 971 void td_fill_verify_state_seed(struct thread_data *td)
 972 {
 973         bool use64;
 974
 975         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
 976                 use64 = true;
 977         else
 978                 use64 = false;
 979
 980         init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF],
 981                 use64);
 982 }
 983
 984 static void td_fill_rand_seeds_internal(struct thread_data *td, bool use64)
 985 {
 986         uint64_t read_seed = td->rand_seeds[FIO_RAND_BS_OFF];
 987         uint64_t write_seed = td->rand_seeds[FIO_RAND_BS1_OFF];
 988         uint64_t trim_seed = td->rand_seeds[FIO_RAND_BS2_OFF];
 989         int i;
 990
 991         /*
 992          * trimwrite is special in that we need to generate the same
 993          * offsets to get the "write after trim" effect. If we are
 994          * using bssplit to set buffer length distributions, ensure that
 995          * we seed the trim and write generators identically. Ditto for
 996          * verify, read and writes must have the same seed, if we are doing
 997          * read verify.
 998          */
 999         if (td->o.verify != VERIFY_NONE)
1000                 write_seed = read_seed;
1001         if (td_trimwrite(td))
1002                 trim_seed = write_seed;
1003         init_rand_seed(&td->bsrange_state[DDIR_READ], read_seed, use64);
1004         init_rand_seed(&td->bsrange_state[DDIR_WRITE], write_seed, use64);
1005         init_rand_seed(&td->bsrange_state[DDIR_TRIM], trim_seed, use64);
1006
1007         td_fill_verify_state_seed(td);
1008         init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], false);
1009
1010         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
1011                 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF], use64);
1012         else if (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM)
1013                 init_rand_file_service(td);
1014
1015         init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], use64);
1016         init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF], use64);
1017         init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY], use64);
1018         init_rand_seed(&td->poisson_state[0], td->rand_seeds[FIO_RAND_POISSON_OFF], 0);
1019         init_rand_seed(&td->poisson_state[1], td->rand_seeds[FIO_RAND_POISSON2_OFF], 0);
1020         init_rand_seed(&td->poisson_state[2], td->rand_seeds[FIO_RAND_POISSON3_OFF], 0);
1021         init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF], false);
1022         init_rand_seed(&td->zone_state, td->rand_seeds[FIO_RAND_ZONE_OFF], false);
1023         init_rand_seed(&td->prio_state, td->rand_seeds[FIO_RAND_PRIO_CMDS], false);
1024
1025         if (!td_random(td))
1026                 return;
1027
1028         if (td->o.rand_repeatable)
1029                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
1030
1031         init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF], use64);
1032
1033         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1034                 struct frand_state *s = &td->seq_rand_state[i];
1035
1036                 init_rand_seed(s, td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], false);
1037         }
1038 }
1039
1040 void td_fill_rand_seeds(struct thread_data *td)
1041 {
1042         bool use64;
1043
1044         if (td->o.allrand_repeatable) {
1045                 unsigned int i;
1046
1047                 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
1048                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
1049                                 + i;
1050         }
1051
1052         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
1053                 use64 = true;
1054         else
1055                 use64 = false;
1056
1057         td_fill_rand_seeds_internal(td, use64);
1058
1059         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF], use64);
1060         frand_copy(&td->buf_state_prev, &td->buf_state);
1061 }
1062
1063 /*
1064  * Initializes the ioengine configured for a job, if it has not been done so
1065  * already.
1066  */
1067 int ioengine_load(struct thread_data *td)
1068 {
1069         if (!td->o.ioengine) {
1070                 log_err("fio: internal fault, no IO engine specified\n");
1071                 return 1;
1072         }
1073
1074         if (td->io_ops) {
1075                 struct ioengine_ops *ops;
1076                 void *dlhandle;
1077
1078                 /* An engine is loaded, but the requested ioengine
1079                  * may have changed.
1080                  */
1081                 if (!strcmp(td->io_ops->name, td->o.ioengine)) {
1082                         /* The right engine is already loaded */
1083                         return 0;
1084                 }
1085
1086                 /*
1087                  * Name of file and engine may be different, load ops
1088                  * for this name and see if they match. If they do, then
1089                  * the engine is unchanged.
1090                  */
1091                 dlhandle = td->io_ops_dlhandle;
1092                 ops = load_ioengine(td);
1093                 if (!ops)
1094                         goto fail;
1095
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                 goto fail;
1112
1113         if (td->io_ops->option_struct_size && td->io_ops->options) {
1114                 /*
1115                  * In cases where td->eo is set, clone it for a child thread.
1116                  * This requires that the parent thread has the same ioengine,
1117                  * but that requirement must be enforced by the code which
1118                  * cloned the thread.
1119                  */
1120                 void *origeo = td->eo;
1121                 /*
1122                  * Otherwise use the default thread options.
1123                  */
1124                 if (!origeo && td != &def_thread && def_thread.eo &&
1125                     def_thread.io_ops->options == td->io_ops->options)
1126                         origeo = def_thread.eo;
1127
1128                 options_init(td->io_ops->options);
1129                 td->eo = malloc(td->io_ops->option_struct_size);
1130                 /*
1131                  * Use the default thread as an option template if this uses the
1132                  * same options structure and there are non-default options
1133                  * used.
1134                  */
1135                 if (origeo) {
1136                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
1137                         options_mem_dupe(td->io_ops->options, td->eo);
1138                 } else {
1139                         memset(td->eo, 0, td->io_ops->option_struct_size);
1140                         fill_default_options(td->eo, td->io_ops->options);
1141                 }
1142                 *(struct thread_data **)td->eo = td;
1143         }
1144
1145         if (td->o.odirect)
1146                 td->io_ops->flags |= FIO_RAWIO;
1147
1148         td_set_ioengine_flags(td);
1149         return 0;
1150
1151 fail:
1152         log_err("fio: failed to load engine\n");
1153         return 1;
1154
1155 }
1156
1157 static void init_flags(struct thread_data *td)
1158 {
1159         struct thread_options *o = &td->o;
1160         int i;
1161
1162         if (o->verify_backlog)
1163                 td->flags |= TD_F_VER_BACKLOG;
1164         if (o->trim_backlog)
1165                 td->flags |= TD_F_TRIM_BACKLOG;
1166         if (o->read_iolog_file)
1167                 td->flags |= TD_F_READ_IOLOG;
1168         if (o->refill_buffers)
1169                 td->flags |= TD_F_REFILL_BUFFERS;
1170         /*
1171          * Always scramble buffers if asked to
1172          */
1173         if (o->scramble_buffers && fio_option_is_set(o, scramble_buffers))
1174                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1175         /*
1176          * But also scramble buffers, unless we were explicitly asked
1177          * to zero them.
1178          */
1179         if (o->scramble_buffers && !(o->zero_buffers &&
1180             fio_option_is_set(o, zero_buffers)))
1181                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1182         if (o->verify != VERIFY_NONE)
1183                 td->flags |= TD_F_DO_VERIFY;
1184
1185         if (o->verify_async || o->io_submit_mode == IO_MODE_OFFLOAD)
1186                 td->flags |= TD_F_NEED_LOCK;
1187
1188         if (o->mem_type == MEM_CUDA_MALLOC)
1189                 td->flags &= ~TD_F_SCRAMBLE_BUFFERS;
1190
1191         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1192                 if (option_check_rate(td, i)) {
1193                         td->flags |= TD_F_CHECK_RATE;
1194                         break;
1195                 }
1196         }
1197 }
1198
1199 static int setup_random_seeds(struct thread_data *td)
1200 {
1201         uint64_t seed;
1202         unsigned int i;
1203
1204         if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed)) {
1205                 int ret = init_random_seeds(td->rand_seeds, sizeof(td->rand_seeds));
1206                 if (!ret)
1207                         td_fill_rand_seeds(td);
1208                 return ret;
1209         }
1210
1211         seed = td->o.rand_seed;
1212         for (i = 0; i < 4; i++)
1213                 seed *= 0x9e370001UL;
1214
1215         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
1216                 td->rand_seeds[i] = seed * td->thread_number + i;
1217                 seed *= 0x9e370001UL;
1218         }
1219
1220         td_fill_rand_seeds(td);
1221         return 0;
1222 }
1223
1224 enum {
1225         FPRE_NONE = 0,
1226         FPRE_JOBNAME,
1227         FPRE_JOBNUM,
1228         FPRE_FILENUM
1229 };
1230
1231 static struct fpre_keyword {
1232         const char *keyword;
1233         size_t strlen;
1234         int key;
1235 } fpre_keywords[] = {
1236         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
1237         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
1238         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
1239         { .keyword = NULL, },
1240         };
1241
1242 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
1243                            const char *jobname, int jobnum, int filenum)
1244 {
1245         struct fpre_keyword *f;
1246         char copy[PATH_MAX];
1247         size_t dst_left = PATH_MAX - 1;
1248
1249         if (!o->filename_format || !strlen(o->filename_format)) {
1250                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
1251                 return buf;
1252         }
1253
1254         for (f = &fpre_keywords[0]; f->keyword; f++)
1255                 f->strlen = strlen(f->keyword);
1256
1257         snprintf(buf, buf_size, "%s", o->filename_format);
1258
1259         memset(copy, 0, sizeof(copy));
1260         for (f = &fpre_keywords[0]; f->keyword; f++) {
1261                 do {
1262                         size_t pre_len, post_start = 0;
1263                         char *str, *dst = copy;
1264
1265                         str = strcasestr(buf, f->keyword);
1266                         if (!str)
1267                                 break;
1268
1269                         pre_len = str - buf;
1270                         if (strlen(str) != f->strlen)
1271                                 post_start = pre_len + f->strlen;
1272
1273                         if (pre_len) {
1274                                 strncpy(dst, buf, pre_len);
1275                                 dst += pre_len;
1276                                 dst_left -= pre_len;
1277                         }
1278
1279                         switch (f->key) {
1280                         case FPRE_JOBNAME: {
1281                                 int ret;
1282
1283                                 ret = snprintf(dst, dst_left, "%s", jobname);
1284                                 if (ret < 0)
1285                                         break;
1286                                 else if (ret > dst_left) {
1287                                         log_err("fio: truncated filename\n");
1288                                         dst += dst_left;
1289                                         dst_left = 0;
1290                                 } else {
1291                                         dst += ret;
1292                                         dst_left -= ret;
1293                                 }
1294                                 break;
1295                                 }
1296                         case FPRE_JOBNUM: {
1297                                 int ret;
1298
1299                                 ret = snprintf(dst, dst_left, "%d", jobnum);
1300                                 if (ret < 0)
1301                                         break;
1302                                 else if (ret > dst_left) {
1303                                         log_err("fio: truncated filename\n");
1304                                         dst += dst_left;
1305                                         dst_left = 0;
1306                                 } else {
1307                                         dst += ret;
1308                                         dst_left -= ret;
1309                                 }
1310                                 break;
1311                                 }
1312                         case FPRE_FILENUM: {
1313                                 int ret;
1314
1315                                 ret = snprintf(dst, dst_left, "%d", filenum);
1316                                 if (ret < 0)
1317                                         break;
1318                                 else if (ret > dst_left) {
1319                                         log_err("fio: truncated filename\n");
1320                                         dst += dst_left;
1321                                         dst_left = 0;
1322                                 } else {
1323                                         dst += ret;
1324                                         dst_left -= ret;
1325                                 }
1326                                 break;
1327                                 }
1328                         default:
1329                                 assert(0);
1330                                 break;
1331                         }
1332
1333                         if (post_start)
1334                                 strncpy(dst, buf + post_start, dst_left);
1335
1336                         snprintf(buf, buf_size, "%s", copy);
1337                 } while (1);
1338         }
1339
1340         return buf;
1341 }
1342
1343 bool parse_dryrun(void)
1344 {
1345         return dump_cmdline || parse_only;
1346 }
1347
1348 static void gen_log_name(char *name, size_t size, const char *logtype,
1349                          const char *logname, unsigned int num,
1350                          const char *suf, int per_job)
1351 {
1352         if (per_job)
1353                 snprintf(name, size, "%s_%s.%d.%s", logname, logtype, num, suf);
1354         else
1355                 snprintf(name, size, "%s_%s.%s", logname, logtype, suf);
1356 }
1357
1358 static int check_waitees(char *waitee)
1359 {
1360         struct thread_data *td;
1361         int i, ret = 0;
1362
1363         for_each_td(td, i) {
1364                 if (td->subjob_number)
1365                         continue;
1366
1367                 ret += !strcmp(td->o.name, waitee);
1368         }
1369
1370         return ret;
1371 }
1372
1373 static bool wait_for_ok(const char *jobname, struct thread_options *o)
1374 {
1375         int nw;
1376
1377         if (!o->wait_for)
1378                 return true;
1379
1380         if (!strcmp(jobname, o->wait_for)) {
1381                 log_err("%s: a job cannot wait for itself (wait_for=%s).\n",
1382                                 jobname, o->wait_for);
1383                 return false;
1384         }
1385
1386         if (!(nw = check_waitees(o->wait_for))) {
1387                 log_err("%s: waitee job %s unknown.\n", jobname, o->wait_for);
1388                 return false;
1389         }
1390
1391         if (nw > 1) {
1392                 log_err("%s: multiple waitees %s found,\n"
1393                         "please avoid duplicates when using wait_for option.\n",
1394                                 jobname, o->wait_for);
1395                 return false;
1396         }
1397
1398         return true;
1399 }
1400
1401 /*
1402  * Treat an empty log file name the same as a one not given
1403  */
1404 static const char *make_log_name(const char *logname, const char *jobname)
1405 {
1406         if (logname && strcmp(logname, ""))
1407                 return logname;
1408
1409         return jobname;
1410 }
1411
1412 /*
1413  * Adds a job to the list of things todo. Sanitizes the various options
1414  * to make sure we don't have conflicts, and initializes various
1415  * members of td.
1416  */
1417 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1418                    int recursed, int client_type)
1419 {
1420         unsigned int i;
1421         char fname[PATH_MAX + 1];
1422         int numjobs, file_alloced;
1423         struct thread_options *o = &td->o;
1424         char logname[PATH_MAX + 32];
1425
1426         /*
1427          * the def_thread is just for options, it's not a real job
1428          */
1429         if (td == &def_thread)
1430                 return 0;
1431
1432         init_flags(td);
1433
1434         /*
1435          * if we are just dumping the output command line, don't add the job
1436          */
1437         if (parse_dryrun()) {
1438                 put_job(td);
1439                 return 0;
1440         }
1441
1442         td->client_type = client_type;
1443
1444         if (profile_td_init(td))
1445                 goto err;
1446
1447         if (ioengine_load(td))
1448                 goto err;
1449
1450         file_alloced = 0;
1451         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1452                 file_alloced = 1;
1453
1454                 if (o->nr_files == 1 && exists_and_not_regfile(jobname))
1455                         add_file(td, jobname, job_add_num, 0);
1456                 else {
1457                         for (i = 0; i < o->nr_files; i++)
1458                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1459                 }
1460         }
1461
1462         if (setup_random_seeds(td)) {
1463                 td_verror(td, errno, "setup_random_seeds");
1464                 goto err;
1465         }
1466
1467         if (fixup_options(td))
1468                 goto err;
1469
1470         /*
1471          * Belongs to fixup_options, but o->name is not necessarily set as yet
1472          */
1473         if (!wait_for_ok(jobname, o))
1474                 goto err;
1475
1476         flow_init_job(td);
1477
1478         /*
1479          * IO engines only need this for option callbacks, and the address may
1480          * change in subprocesses.
1481          */
1482         if (td->eo)
1483                 *(struct thread_data **)td->eo = NULL;
1484
1485         if (td_ioengine_flagged(td, FIO_DISKLESSIO)) {
1486                 struct fio_file *f;
1487
1488                 for_each_file(td, f, i)
1489                         f->real_file_size = -1ULL;
1490         }
1491
1492         td->sem = fio_sem_init(FIO_SEM_LOCKED);
1493
1494         td->ts.clat_percentiles = o->clat_percentiles;
1495         td->ts.lat_percentiles = o->lat_percentiles;
1496         td->ts.slat_percentiles = o->slat_percentiles;
1497         td->ts.percentile_precision = o->percentile_precision;
1498         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1499         td->ts.sig_figs = o->sig_figs;
1500
1501         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1502                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1503                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1504                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1505                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1506                 td->ts.iops_stat[i].min_val = ULONG_MAX;
1507                 td->ts.clat_high_prio_stat[i].min_val = ULONG_MAX;
1508                 td->ts.clat_low_prio_stat[i].min_val = ULONG_MAX;
1509         }
1510         td->ts.sync_stat.min_val = ULONG_MAX;
1511         td->ddir_seq_nr = o->ddir_seq_nr;
1512
1513         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1514                 prev_group_jobs = 0;
1515                 groupid++;
1516                 if (groupid == INT_MAX) {
1517                         log_err("fio: too many groups defined\n");
1518                         goto err;
1519                 }
1520         }
1521
1522         td->groupid = groupid;
1523         prev_group_jobs++;
1524
1525         if (setup_rate(td))
1526                 goto err;
1527
1528         if (o->write_lat_log) {
1529                 struct log_params p = {
1530                         .td = td,
1531                         .avg_msec = o->log_avg_msec,
1532                         .hist_msec = o->log_hist_msec,
1533                         .hist_coarseness = o->log_hist_coarseness,
1534                         .log_type = IO_LOG_TYPE_LAT,
1535                         .log_offset = o->log_offset,
1536                         .log_gz = o->log_gz,
1537                         .log_gz_store = o->log_gz_store,
1538                 };
1539                 const char *pre = make_log_name(o->lat_log_file, o->name);
1540                 const char *suf;
1541
1542                 if (p.log_gz_store)
1543                         suf = "log.fz";
1544                 else
1545                         suf = "log";
1546
1547                 gen_log_name(logname, sizeof(logname), "lat", pre,
1548                                 td->thread_number, suf, o->per_job_logs);
1549                 setup_log(&td->lat_log, &p, logname);
1550
1551                 gen_log_name(logname, sizeof(logname), "slat", pre,
1552                                 td->thread_number, suf, o->per_job_logs);
1553                 setup_log(&td->slat_log, &p, logname);
1554
1555                 gen_log_name(logname, sizeof(logname), "clat", pre,
1556                                 td->thread_number, suf, o->per_job_logs);
1557                 setup_log(&td->clat_log, &p, logname);
1558
1559         }
1560
1561         if (o->write_hist_log) {
1562                 struct log_params p = {
1563                         .td = td,
1564                         .avg_msec = o->log_avg_msec,
1565                         .hist_msec = o->log_hist_msec,
1566                         .hist_coarseness = o->log_hist_coarseness,
1567                         .log_type = IO_LOG_TYPE_HIST,
1568                         .log_offset = o->log_offset,
1569                         .log_gz = o->log_gz,
1570                         .log_gz_store = o->log_gz_store,
1571                 };
1572                 const char *pre = make_log_name(o->hist_log_file, o->name);
1573                 const char *suf;
1574
1575 #ifndef CONFIG_ZLIB
1576                 if (td->client_type) {
1577                         log_err("fio: --write_hist_log requires zlib in client/server mode\n");
1578                         goto err;
1579                 }
1580 #endif
1581
1582                 if (p.log_gz_store)
1583                         suf = "log.fz";
1584                 else
1585                         suf = "log";
1586
1587                 gen_log_name(logname, sizeof(logname), "clat_hist", pre,
1588                                 td->thread_number, suf, o->per_job_logs);
1589                 setup_log(&td->clat_hist_log, &p, logname);
1590         }
1591
1592         if (o->write_bw_log) {
1593                 struct log_params p = {
1594                         .td = td,
1595                         .avg_msec = o->log_avg_msec,
1596                         .hist_msec = o->log_hist_msec,
1597                         .hist_coarseness = o->log_hist_coarseness,
1598                         .log_type = IO_LOG_TYPE_BW,
1599                         .log_offset = o->log_offset,
1600                         .log_gz = o->log_gz,
1601                         .log_gz_store = o->log_gz_store,
1602                 };
1603                 const char *pre = make_log_name(o->bw_log_file, o->name);
1604                 const char *suf;
1605
1606                 if (fio_option_is_set(o, bw_avg_time))
1607                         p.avg_msec = min(o->log_avg_msec, o->bw_avg_time);
1608                 else
1609                         o->bw_avg_time = p.avg_msec;
1610
1611                 p.hist_msec = o->log_hist_msec;
1612                 p.hist_coarseness = o->log_hist_coarseness;
1613
1614                 if (p.log_gz_store)
1615                         suf = "log.fz";
1616                 else
1617                         suf = "log";
1618
1619                 gen_log_name(logname, sizeof(logname), "bw", pre,
1620                                 td->thread_number, suf, o->per_job_logs);
1621                 setup_log(&td->bw_log, &p, logname);
1622         }
1623         if (o->write_iops_log) {
1624                 struct log_params p = {
1625                         .td = td,
1626                         .avg_msec = o->log_avg_msec,
1627                         .hist_msec = o->log_hist_msec,
1628                         .hist_coarseness = o->log_hist_coarseness,
1629                         .log_type = IO_LOG_TYPE_IOPS,
1630                         .log_offset = o->log_offset,
1631                         .log_gz = o->log_gz,
1632                         .log_gz_store = o->log_gz_store,
1633                 };
1634                 const char *pre = make_log_name(o->iops_log_file, o->name);
1635                 const char *suf;
1636
1637                 if (fio_option_is_set(o, iops_avg_time))
1638                         p.avg_msec = min(o->log_avg_msec, o->iops_avg_time);
1639                 else
1640                         o->iops_avg_time = p.avg_msec;
1641
1642                 p.hist_msec = o->log_hist_msec;
1643                 p.hist_coarseness = o->log_hist_coarseness;
1644
1645                 if (p.log_gz_store)
1646                         suf = "log.fz";
1647                 else
1648                         suf = "log";
1649
1650                 gen_log_name(logname, sizeof(logname), "iops", pre,
1651                                 td->thread_number, suf, o->per_job_logs);
1652                 setup_log(&td->iops_log, &p, logname);
1653         }
1654
1655         if (!o->name)
1656                 o->name = strdup(jobname);
1657
1658         if (output_format & FIO_OUTPUT_NORMAL) {
1659                 if (!job_add_num) {
1660                         if (is_backend && !recursed)
1661                                 fio_server_send_add_job(td);
1662
1663                         if (!td_ioengine_flagged(td, FIO_NOIO)) {
1664                                 char *c1, *c2, *c3, *c4;
1665                                 char *c5 = NULL, *c6 = NULL;
1666                                 int i2p = is_power_of_2(o->kb_base);
1667                                 struct buf_output out;
1668
1669                                 c1 = num2str(o->min_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1670                                 c2 = num2str(o->max_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1671                                 c3 = num2str(o->min_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1672                                 c4 = num2str(o->max_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1673
1674                                 if (!o->bs_is_seq_rand) {
1675                                         c5 = num2str(o->min_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1676                                         c6 = num2str(o->max_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1677                                 }
1678
1679                                 buf_output_init(&out);
1680                                 __log_buf(&out, "%s: (g=%d): rw=%s, ", td->o.name,
1681                                                         td->groupid,
1682                                                         ddir_str(o->td_ddir));
1683
1684                                 if (o->bs_is_seq_rand)
1685                                         __log_buf(&out, "bs=(R) %s-%s, (W) %s-%s, bs_is_seq_rand, ",
1686                                                         c1, c2, c3, c4);
1687                                 else
1688                                         __log_buf(&out, "bs=(R) %s-%s, (W) %s-%s, (T) %s-%s, ",
1689                                                         c1, c2, c3, c4, c5, c6);
1690
1691                                 __log_buf(&out, "ioengine=%s, iodepth=%u\n",
1692                                                 td->io_ops->name, o->iodepth);
1693                                 log_info_buf(out.buf, out.buflen);
1694                                 buf_output_free(&out);
1695
1696                                 free(c1);
1697                                 free(c2);
1698                                 free(c3);
1699                                 free(c4);
1700                                 free(c5);
1701                                 free(c6);
1702                         }
1703                 } else if (job_add_num == 1)
1704                         log_info("...\n");
1705         }
1706
1707         if (td_steadystate_init(td))
1708                 goto err;
1709
1710         if (o->merge_blktrace_file && !merge_blktrace_iologs(td))
1711                 goto err;
1712
1713         if (merge_blktrace_only) {
1714                 put_job(td);
1715                 return 0;
1716         }
1717
1718         /*
1719          * recurse add identical jobs, clear numjobs and stonewall options
1720          * as they don't apply to sub-jobs
1721          */
1722         numjobs = o->numjobs;
1723         while (--numjobs) {
1724                 struct thread_data *td_new = get_new_job(false, td, true, jobname);
1725
1726                 if (!td_new)
1727                         goto err;
1728
1729                 td_new->o.numjobs = 1;
1730                 td_new->o.stonewall = 0;
1731                 td_new->o.new_group = 0;
1732                 td_new->subjob_number = numjobs;
1733                 td_new->o.ss_dur = o->ss_dur * 1000000l;
1734                 td_new->o.ss_limit = o->ss_limit;
1735
1736                 if (file_alloced) {
1737                         if (td_new->files) {
1738                                 struct fio_file *f;
1739                                 for_each_file(td_new, f, i)
1740                                         fio_file_free(f);
1741                                 free(td_new->files);
1742                                 td_new->files = NULL;
1743                         }
1744                         td_new->files_index = 0;
1745                         td_new->files_size = 0;
1746                         if (td_new->o.filename) {
1747                                 free(td_new->o.filename);
1748                                 td_new->o.filename = NULL;
1749                         }
1750                 }
1751
1752                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1753                         goto err;
1754         }
1755
1756         return 0;
1757 err:
1758         put_job(td);
1759         return -1;
1760 }
1761
1762 /*
1763  * Parse as if 'o' was a command line
1764  */
1765 void add_job_opts(const char **o, int client_type)
1766 {
1767         struct thread_data *td, *td_parent;
1768         int i, in_global = 1;
1769         char jobname[32];
1770
1771         i = 0;
1772         td_parent = td = NULL;
1773         while (o[i]) {
1774                 if (!strncmp(o[i], "name", 4)) {
1775                         in_global = 0;
1776                         if (td)
1777                                 add_job(td, jobname, 0, 0, client_type);
1778                         td = NULL;
1779                         sprintf(jobname, "%s", o[i] + 5);
1780                 }
1781                 if (in_global && !td_parent)
1782                         td_parent = get_new_job(true, &def_thread, false, jobname);
1783                 else if (!in_global && !td) {
1784                         if (!td_parent)
1785                                 td_parent = &def_thread;
1786                         td = get_new_job(false, td_parent, false, jobname);
1787                 }
1788                 if (in_global)
1789                         fio_options_parse(td_parent, (char **) &o[i], 1);
1790                 else
1791                         fio_options_parse(td, (char **) &o[i], 1);
1792                 i++;
1793         }
1794
1795         if (td)
1796                 add_job(td, jobname, 0, 0, client_type);
1797 }
1798
1799 static int skip_this_section(const char *name)
1800 {
1801         int i;
1802
1803         if (!nr_job_sections)
1804                 return 0;
1805         if (!strncmp(name, "global", 6))
1806                 return 0;
1807
1808         for (i = 0; i < nr_job_sections; i++)
1809                 if (!strcmp(job_sections[i], name))
1810                         return 0;
1811
1812         return 1;
1813 }
1814
1815 static int is_empty_or_comment(char *line)
1816 {
1817         unsigned int i;
1818
1819         for (i = 0; i < strlen(line); i++) {
1820                 if (line[i] == ';')
1821                         return 1;
1822                 if (line[i] == '#')
1823                         return 1;
1824                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1825                         return 0;
1826         }
1827
1828         return 1;
1829 }
1830
1831 /*
1832  * This is our [ini] type file parser.
1833  */
1834 static int __parse_jobs_ini(struct thread_data *td,
1835                 char *file, int is_buf, int stonewall_flag, int type,
1836                 int nested, char *name, char ***popts, int *aopts, int *nopts)
1837 {
1838         bool global = false;
1839         bool stdin_occupied = false;
1840         char *string;
1841         FILE *f;
1842         char *p;
1843         int ret = 0, stonewall;
1844         int first_sect = 1;
1845         int skip_fgets = 0;
1846         int inside_skip = 0;
1847         char **opts;
1848         int i, alloc_opts, num_opts;
1849
1850         dprint(FD_PARSE, "Parsing ini file %s\n", file);
1851         assert(td || !nested);
1852
1853         if (is_buf)
1854                 f = NULL;
1855         else {
1856                 if (!strcmp(file, "-")) {
1857                         f = stdin;
1858                         stdin_occupied = true;
1859                 } else
1860                         f = fopen(file, "r");
1861
1862                 if (!f) {
1863                         int __err = errno;
1864
1865                         log_err("fio: unable to open '%s' job file\n", file);
1866                         if (td)
1867                                 td_verror(td, __err, "job file open");
1868                         return 1;
1869                 }
1870         }
1871
1872         string = malloc(OPT_LEN_MAX);
1873
1874         /*
1875          * it's really 256 + small bit, 280 should suffice
1876          */
1877         if (!nested) {
1878                 name = malloc(280);
1879                 memset(name, 0, 280);
1880         }
1881
1882         opts = NULL;
1883         if (nested && popts) {
1884                 opts = *popts;
1885                 alloc_opts = *aopts;
1886                 num_opts = *nopts;
1887         }
1888
1889         if (!opts) {
1890                 alloc_opts = 8;
1891                 opts = malloc(sizeof(char *) * alloc_opts);
1892                 num_opts = 0;
1893         }
1894
1895         stonewall = stonewall_flag;
1896         do {
1897                 /*
1898                  * if skip_fgets is set, we already have loaded a line we
1899                  * haven't handled.
1900                  */
1901                 if (!skip_fgets) {
1902                         if (is_buf)
1903                                 p = strsep(&file, "\n");
1904                         else
1905                                 p = fgets(string, OPT_LEN_MAX, f);
1906                         if (!p)
1907                                 break;
1908                 }
1909
1910                 skip_fgets = 0;
1911                 strip_blank_front(&p);
1912                 strip_blank_end(p);
1913
1914                 dprint(FD_PARSE, "%s\n", p);
1915                 if (is_empty_or_comment(p))
1916                         continue;
1917
1918                 if (!nested) {
1919                         if (sscanf(p, "[%255[^\n]]", name) != 1) {
1920                                 if (inside_skip)
1921                                         continue;
1922
1923                                 log_err("fio: option <%s> outside of "
1924                                         "[] job section\n", p);
1925                                 ret = 1;
1926                                 break;
1927                         }
1928
1929                         name[strlen(name) - 1] = '\0';
1930
1931                         if (skip_this_section(name)) {
1932                                 inside_skip = 1;
1933                                 continue;
1934                         } else
1935                                 inside_skip = 0;
1936
1937                         dprint(FD_PARSE, "Parsing section [%s]\n", name);
1938
1939                         global = !strncmp(name, "global", 6);
1940
1941                         if (dump_cmdline) {
1942                                 if (first_sect)
1943                                         log_info("fio ");
1944                                 if (!global)
1945                                         log_info("--name=%s ", name);
1946                                 first_sect = 0;
1947                         }
1948
1949                         td = get_new_job(global, &def_thread, false, name);
1950                         if (!td) {
1951                                 ret = 1;
1952                                 break;
1953                         }
1954
1955                         /*
1956                          * Separate multiple job files by a stonewall
1957                          */
1958                         if (!global && stonewall) {
1959                                 td->o.stonewall = stonewall;
1960                                 stonewall = 0;
1961                         }
1962
1963                         num_opts = 0;
1964                         memset(opts, 0, alloc_opts * sizeof(char *));
1965                 }
1966                 else
1967                         skip_fgets = 1;
1968
1969                 while (1) {
1970                         if (!skip_fgets) {
1971                                 if (is_buf)
1972                                         p = strsep(&file, "\n");
1973                                 else
1974                                         p = fgets(string, OPT_LEN_MAX, f);
1975                                 if (!p)
1976                                         break;
1977                                 dprint(FD_PARSE, "%s", p);
1978                         }
1979                         else
1980                                 skip_fgets = 0;
1981
1982                         if (is_empty_or_comment(p))
1983                                 continue;
1984
1985                         strip_blank_front(&p);
1986
1987                         /*
1988                          * new section, break out and make sure we don't
1989                          * fgets() a new line at the top.
1990                          */
1991                         if (p[0] == '[') {
1992                                 if (nested) {
1993                                         log_err("No new sections in included files\n");
1994                                         ret = 1;
1995                                         goto out;
1996                                 }
1997
1998                                 skip_fgets = 1;
1999                                 break;
2000                         }
2001
2002                         strip_blank_end(p);
2003
2004                         if (!strncmp(p, "include", strlen("include"))) {
2005                                 char *filename = p + strlen("include") + 1,
2006                                         *ts, *full_fn = NULL;
2007
2008                                 /*
2009                                  * Allow for the include filename
2010                                  * specification to be relative.
2011                                  */
2012                                 if (access(filename, F_OK) &&
2013                                     (ts = strrchr(file, '/'))) {
2014                                         if (asprintf(&full_fn, "%.*s%s",
2015                                                  (int)(ts - file + 1), file,
2016                                                  filename) < 0) {
2017                                                 ret = ENOMEM;
2018                                                 break;
2019                                         }
2020                                         filename = full_fn;
2021                                 }
2022
2023                                 ret = __parse_jobs_ini(td, filename, is_buf,
2024                                                        stonewall_flag, type, 1,
2025                                                        name, &opts,
2026                                                        &alloc_opts, &num_opts);
2027
2028                                 if (ret) {
2029                                         log_err("Error %d while parsing "
2030                                                 "include file %s\n",
2031                                                 ret, filename);
2032                                 }
2033
2034                                 if (full_fn)
2035                                         free(full_fn);
2036
2037                                 if (ret)
2038                                         break;
2039
2040                                 continue;
2041                         }
2042
2043                         if (num_opts == alloc_opts) {
2044                                 alloc_opts <<= 1;
2045                                 opts = realloc(opts,
2046                                                 alloc_opts * sizeof(char *));
2047                         }
2048
2049                         opts[num_opts] = strdup(p);
2050                         num_opts++;
2051                 }
2052
2053                 if (nested) {
2054                         *popts = opts;
2055                         *aopts = alloc_opts;
2056                         *nopts = num_opts;
2057                         goto out;
2058                 }
2059
2060                 ret = fio_options_parse(td, opts, num_opts);
2061
2062                 if (!ret && td->o.read_iolog_file != NULL) {
2063                         char *fname = get_name_by_idx(td->o.read_iolog_file,
2064                                                       td->subjob_number);
2065                         if (!strcmp(fname, "-")) {
2066                                 if (stdin_occupied) {
2067                                         log_err("fio: only one user (read_iolog_file/job "
2068                                                 "file) of stdin is permitted at once but "
2069                                                 "more than one was found.\n");
2070                                         ret = 1;
2071                                 }
2072                                 stdin_occupied = true;
2073                         }
2074                 }
2075                 if (!ret) {
2076                         if (dump_cmdline)
2077                                 dump_opt_list(td);
2078
2079                         ret = add_job(td, name, 0, 0, type);
2080                 } else {
2081                         log_err("fio: job %s dropped\n", name);
2082                         put_job(td);
2083                 }
2084
2085                 for (i = 0; i < num_opts; i++)
2086                         free(opts[i]);
2087                 num_opts = 0;
2088         } while (!ret);
2089
2090         if (dump_cmdline)
2091                 log_info("\n");
2092
2093         i = 0;
2094         while (i < nr_job_sections) {
2095                 free(job_sections[i]);
2096                 i++;
2097         }
2098
2099         free(opts);
2100 out:
2101         free(string);
2102         if (!nested)
2103                 free(name);
2104         if (!is_buf && f != stdin)
2105                 fclose(f);
2106         return ret;
2107 }
2108
2109 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
2110 {
2111         return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
2112                         0, NULL, NULL, NULL, NULL);
2113 }
2114
2115 static int fill_def_thread(void)
2116 {
2117         memset(&def_thread, 0, sizeof(def_thread));
2118         INIT_FLIST_HEAD(&def_thread.opt_list);
2119
2120         fio_getaffinity(getpid(), &def_thread.o.cpumask);
2121         def_thread.o.error_dump = 1;
2122
2123         /*
2124          * fill default options
2125          */
2126         fio_fill_default_options(&def_thread);
2127         return 0;
2128 }
2129
2130 static void show_debug_categories(void)
2131 {
2132 #ifdef FIO_INC_DEBUG
2133         const struct debug_level *dl = &debug_levels[0];
2134         int curlen, first = 1;
2135
2136         curlen = 0;
2137         while (dl->name) {
2138                 int has_next = (dl + 1)->name != NULL;
2139
2140                 if (first || curlen + strlen(dl->name) >= 80) {
2141                         if (!first) {
2142                                 printf("\n");
2143                                 curlen = 0;
2144                         }
2145                         curlen += printf("\t\t\t%s", dl->name);
2146                         curlen += 3 * (8 - 1);
2147                         if (has_next)
2148                                 curlen += printf(",");
2149                 } else {
2150                         curlen += printf("%s", dl->name);
2151                         if (has_next)
2152                                 curlen += printf(",");
2153                 }
2154                 dl++;
2155                 first = 0;
2156         }
2157         printf("\n");
2158 #endif
2159 }
2160
2161 /*
2162  * Following options aren't printed by usage().
2163  * --append-terse - Equivalent to --output-format=terse, see f6a7df53.
2164  * --latency-log - Deprecated option.
2165  */
2166 static void usage(const char *name)
2167 {
2168         printf("%s\n", fio_version_string);
2169         printf("%s [options] [job options] <job file(s)>\n", name);
2170         printf("  --debug=options\tEnable debug logging. May be one/more of:\n");
2171         show_debug_categories();
2172         printf("  --parse-only\t\tParse options only, don't start any IO\n");
2173         printf("  --merge-blktrace-only\tMerge blktraces only, don't start any IO\n");
2174         printf("  --output\t\tWrite output to file\n");
2175         printf("  --bandwidth-log\tGenerate aggregate bandwidth logs\n");
2176         printf("  --minimal\t\tMinimal (terse) output\n");
2177         printf("  --output-format=type\tOutput format (terse,json,json+,normal)\n");
2178         printf("  --terse-version=type\tSet terse version output format"
2179                 " (default 3, or 2 or 4)\n");
2180         printf("  --version\t\tPrint version info and exit\n");
2181         printf("  --help\t\tPrint this page\n");
2182         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
2183         printf("  --crctest=[type]\tTest speed of checksum functions\n");
2184         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
2185                 " them\n");
2186         printf("  --enghelp=engine\tPrint ioengine help, or list"
2187                 " available ioengines\n");
2188         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
2189                 " cmd\n");
2190         printf("  --showcmd\t\tTurn a job file into command line options\n");
2191         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
2192         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
2193         printf("  --eta-newline=t\tForce a new line for every 't'");
2194         printf(" period passed\n");
2195         printf("  --status-interval=t\tForce full status dump every");
2196         printf(" 't' period passed\n");
2197         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
2198                 " writes\n");
2199         printf("  --section=name\tOnly run specified section in job file,"
2200                 " multiple sections can be specified\n");
2201         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
2202                 " (def 16384)\n");
2203         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
2204         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
2205         printf("  --server=args\t\tStart a backend fio server\n");
2206         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
2207         printf("  --client=hostname\tTalk to remote backend(s) fio server at hostname\n");
2208         printf("  --remote-config=file\tTell fio server to load this local job file\n");
2209         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
2210                 "\t\t\t(option=system,percpu) or run unit work\n"
2211                 "\t\t\tcalibration only (option=calibrate)\n");
2212 #ifdef CONFIG_ZLIB
2213         printf("  --inflate-log=log\tInflate and output compressed log\n");
2214 #endif
2215         printf("  --trigger-file=file\tExecute trigger cmd when file exists\n");
2216         printf("  --trigger-timeout=t\tExecute trigger at this time\n");
2217         printf("  --trigger=cmd\t\tSet this command as local trigger\n");
2218         printf("  --trigger-remote=cmd\tSet this command as remote trigger\n");
2219         printf("  --aux-path=path\tUse this path for fio state generated files\n");
2220         printf("\nFio was written by Jens Axboe <axboe@kernel.dk>\n");
2221 }
2222
2223 #ifdef FIO_INC_DEBUG
2224 const struct debug_level debug_levels[] = {
2225         { .name = "process",
2226           .help = "Process creation/exit logging",
2227           .shift = FD_PROCESS,
2228         },
2229         { .name = "file",
2230           .help = "File related action logging",
2231           .shift = FD_FILE,
2232         },
2233         { .name = "io",
2234           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
2235           .shift = FD_IO,
2236         },
2237         { .name = "mem",
2238           .help = "Memory allocation/freeing logging",
2239           .shift = FD_MEM,
2240         },
2241         { .name = "blktrace",
2242           .help = "blktrace action logging",
2243           .shift = FD_BLKTRACE,
2244         },
2245         { .name = "verify",
2246           .help = "IO verification action logging",
2247           .shift = FD_VERIFY,
2248         },
2249         { .name = "random",
2250           .help = "Random generation logging",
2251           .shift = FD_RANDOM,
2252         },
2253         { .name = "parse",
2254           .help = "Parser logging",
2255           .shift = FD_PARSE,
2256         },
2257         { .name = "diskutil",
2258           .help = "Disk utility logging actions",
2259           .shift = FD_DISKUTIL,
2260         },
2261         { .name = "job",
2262           .help = "Logging related to creating/destroying jobs",
2263           .shift = FD_JOB,
2264         },
2265         { .name = "mutex",
2266           .help = "Mutex logging",
2267           .shift = FD_MUTEX
2268         },
2269         { .name = "profile",
2270           .help = "Logging related to profiles",
2271           .shift = FD_PROFILE,
2272         },
2273         { .name = "time",
2274           .help = "Logging related to time keeping functions",
2275           .shift = FD_TIME,
2276         },
2277         { .name = "net",
2278           .help = "Network logging",
2279           .shift = FD_NET,
2280         },
2281         { .name = "rate",
2282           .help = "Rate logging",
2283           .shift = FD_RATE,
2284         },
2285         { .name = "compress",
2286           .help = "Log compression logging",
2287           .shift = FD_COMPRESS,
2288         },
2289         { .name = "steadystate",
2290           .help = "Steady state detection logging",
2291           .shift = FD_STEADYSTATE,
2292         },
2293         { .name = "helperthread",
2294           .help = "Helper thread logging",
2295           .shift = FD_HELPERTHREAD,
2296         },
2297         { .name = "zbd",
2298           .help = "Zoned Block Device logging",
2299           .shift = FD_ZBD,
2300         },
2301         { .name = NULL, },
2302 };
2303
2304 static int set_debug(const char *string)
2305 {
2306         const struct debug_level *dl;
2307         char *p = (char *) string;
2308         char *opt;
2309         int i;
2310
2311         if (!string)
2312                 return 0;
2313
2314         if (!strcmp(string, "?") || !strcmp(string, "help")) {
2315                 log_info("fio: dumping debug options:");
2316                 for (i = 0; debug_levels[i].name; i++) {
2317                         dl = &debug_levels[i];
2318                         log_info("%s,", dl->name);
2319                 }
2320                 log_info("all\n");
2321                 return 1;
2322         }
2323
2324         while ((opt = strsep(&p, ",")) != NULL) {
2325                 int found = 0;
2326
2327                 if (!strncmp(opt, "all", 3)) {
2328                         log_info("fio: set all debug options\n");
2329                         fio_debug = ~0UL;
2330                         continue;
2331                 }
2332
2333                 for (i = 0; debug_levels[i].name; i++) {
2334                         dl = &debug_levels[i];
2335                         found = !strncmp(opt, dl->name, strlen(dl->name));
2336                         if (!found)
2337                                 continue;
2338
2339                         if (dl->shift == FD_JOB) {
2340                                 opt = strchr(opt, ':');
2341                                 if (!opt) {
2342                                         log_err("fio: missing job number\n");
2343                                         break;
2344                                 }
2345                                 opt++;
2346                                 fio_debug_jobno = atoi(opt);
2347                                 log_info("fio: set debug jobno %d\n",
2348                                                         fio_debug_jobno);
2349                         } else {
2350                                 log_info("fio: set debug option %s\n", opt);
2351                                 fio_debug |= (1UL << dl->shift);
2352                         }
2353                         break;
2354                 }
2355
2356                 if (!found)
2357                         log_err("fio: debug mask %s not found\n", opt);
2358         }
2359         return 0;
2360 }
2361 #else
2362 static int set_debug(const char *string)
2363 {
2364         log_err("fio: debug tracing not included in build\n");
2365         return 1;
2366 }
2367 #endif
2368
2369 static void fio_options_fill_optstring(void)
2370 {
2371         char *ostr = cmd_optstr;
2372         int i, c;
2373
2374         c = i = 0;
2375         while (l_opts[i].name) {
2376                 ostr[c++] = l_opts[i].val;
2377                 if (l_opts[i].has_arg == required_argument)
2378                         ostr[c++] = ':';
2379                 else if (l_opts[i].has_arg == optional_argument) {
2380                         ostr[c++] = ':';
2381                         ostr[c++] = ':';
2382                 }
2383                 i++;
2384         }
2385         ostr[c] = '\0';
2386 }
2387
2388 static int client_flag_set(char c)
2389 {
2390         int i;
2391
2392         i = 0;
2393         while (l_opts[i].name) {
2394                 int val = l_opts[i].val;
2395
2396                 if (c == (val & 0xff))
2397                         return (val & FIO_CLIENT_FLAG);
2398
2399                 i++;
2400         }
2401
2402         return 0;
2403 }
2404
2405 static void parse_cmd_client(void *client, char *opt)
2406 {
2407         fio_client_add_cmd_option(client, opt);
2408 }
2409
2410 static void show_closest_option(const char *name)
2411 {
2412         int best_option, best_distance;
2413         int i, distance;
2414
2415         while (*name == '-')
2416                 name++;
2417
2418         best_option = -1;
2419         best_distance = INT_MAX;
2420         i = 0;
2421         while (l_opts[i].name) {
2422                 distance = string_distance(name, l_opts[i].name);
2423                 if (distance < best_distance) {
2424                         best_distance = distance;
2425                         best_option = i;
2426                 }
2427                 i++;
2428         }
2429
2430         if (best_option != -1 && string_distance_ok(name, best_distance))
2431                 log_err("Did you mean %s?\n", l_opts[best_option].name);
2432 }
2433
2434 static int parse_output_format(const char *optarg)
2435 {
2436         char *p, *orig, *opt;
2437         int ret = 0;
2438
2439         p = orig = strdup(optarg);
2440
2441         output_format = 0;
2442
2443         while ((opt = strsep(&p, ",")) != NULL) {
2444                 if (!strcmp(opt, "minimal") ||
2445                     !strcmp(opt, "terse") ||
2446                     !strcmp(opt, "csv"))
2447                         output_format |= FIO_OUTPUT_TERSE;
2448                 else if (!strcmp(opt, "json"))
2449                         output_format |= FIO_OUTPUT_JSON;
2450                 else if (!strcmp(opt, "json+"))
2451                         output_format |= (FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS);
2452                 else if (!strcmp(opt, "normal"))
2453                         output_format |= FIO_OUTPUT_NORMAL;
2454                 else {
2455                         log_err("fio: invalid output format %s\n", opt);
2456                         ret = 1;
2457                         break;
2458                 }
2459         }
2460
2461         free(orig);
2462         return ret;
2463 }
2464
2465 int parse_cmd_line(int argc, char *argv[], int client_type)
2466 {
2467         struct thread_data *td = NULL;
2468         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
2469         char *ostr = cmd_optstr;
2470         char *pid_file = NULL;
2471         void *cur_client = NULL;
2472         bool backend = false;
2473
2474         /*
2475          * Reset optind handling, since we may call this multiple times
2476          * for the backend.
2477          */
2478         optind = 1;
2479
2480         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
2481                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
2482                         parse_cmd_client(cur_client, argv[optind - 1]);
2483                         c &= ~FIO_CLIENT_FLAG;
2484                 }
2485
2486                 switch (c) {
2487                 case 'a':
2488                         smalloc_pool_size = atoi(optarg);
2489                         smalloc_pool_size <<= 10;
2490                         sinit();
2491                         break;
2492                 case 'l':
2493                         log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
2494                         do_exit++;
2495                         exit_val = 1;
2496                         break;
2497                 case 'b':
2498                         write_bw_log = true;
2499                         break;
2500                 case 'o': {
2501                         FILE *tmp;
2502
2503                         if (f_out && f_out != stdout)
2504                                 fclose(f_out);
2505
2506                         tmp = fopen(optarg, "w+");
2507                         if (!tmp) {
2508                                 log_err("fio: output file open error: %s\n", strerror(errno));
2509                                 exit_val = 1;
2510                                 do_exit++;
2511                                 break;
2512                         }
2513                         f_err = f_out = tmp;
2514                         break;
2515                         }
2516                 case 'm':
2517                         output_format = FIO_OUTPUT_TERSE;
2518                         break;
2519                 case 'F':
2520                         if (parse_output_format(optarg)) {
2521                                 log_err("fio: failed parsing output-format\n");
2522                                 exit_val = 1;
2523                                 do_exit++;
2524                                 break;
2525                         }
2526                         break;
2527                 case 'f':
2528                         output_format |= FIO_OUTPUT_TERSE;
2529                         break;
2530                 case 'h':
2531                         did_arg = true;
2532                         if (!cur_client) {
2533                                 usage(argv[0]);
2534                                 do_exit++;
2535                         }
2536                         break;
2537                 case 'c':
2538                         did_arg = true;
2539                         if (!cur_client) {
2540                                 fio_show_option_help(optarg);
2541                                 do_exit++;
2542                         }
2543                         break;
2544                 case 'i':
2545                         did_arg = true;
2546                         if (!cur_client) {
2547                                 exit_val = fio_show_ioengine_help(optarg);
2548                                 do_exit++;
2549                         }
2550                         break;
2551                 case 's':
2552                         did_arg = true;
2553                         dump_cmdline = true;
2554                         break;
2555                 case 'r':
2556                         read_only = 1;
2557                         break;
2558                 case 'v':
2559                         did_arg = true;
2560                         if (!cur_client) {
2561                                 log_info("%s\n", fio_version_string);
2562                                 do_exit++;
2563                         }
2564                         break;
2565                 case 'V':
2566                         terse_version = atoi(optarg);
2567                         if (!(terse_version >= 2 && terse_version <= 5)) {
2568                                 log_err("fio: bad terse version format\n");
2569                                 exit_val = 1;
2570                                 do_exit++;
2571                         }
2572                         break;
2573                 case 'e':
2574                         if (!strcmp("always", optarg))
2575                                 eta_print = FIO_ETA_ALWAYS;
2576                         else if (!strcmp("never", optarg))
2577                                 eta_print = FIO_ETA_NEVER;
2578                         break;
2579                 case 'E': {
2580                         long long t = 0;
2581
2582                         if (check_str_time(optarg, &t, 1)) {
2583                                 log_err("fio: failed parsing eta time %s\n", optarg);
2584                                 exit_val = 1;
2585                                 do_exit++;
2586                                 break;
2587                         }
2588                         eta_new_line = t / 1000;
2589                         if (!eta_new_line) {
2590                                 log_err("fio: eta new line time too short\n");
2591                                 exit_val = 1;
2592                                 do_exit++;
2593                         }
2594                         break;
2595                         }
2596                 case 'O': {
2597                         long long t = 0;
2598
2599                         if (check_str_time(optarg, &t, 1)) {
2600                                 log_err("fio: failed parsing eta interval %s\n", optarg);
2601                                 exit_val = 1;
2602                                 do_exit++;
2603                                 break;
2604                         }
2605                         eta_interval_msec = t / 1000;
2606                         if (eta_interval_msec < DISK_UTIL_MSEC) {
2607                                 log_err("fio: eta interval time too short (%umsec min)\n", DISK_UTIL_MSEC);
2608                                 exit_val = 1;
2609                                 do_exit++;
2610                         }
2611                         break;
2612                         }
2613                 case 'd':
2614                         if (set_debug(optarg))
2615                                 do_exit++;
2616                         break;
2617                 case 'P':
2618                         did_arg = true;
2619                         parse_only = true;
2620                         break;
2621                 case 'x': {
2622                         size_t new_size;
2623
2624                         if (!strcmp(optarg, "global")) {
2625                                 log_err("fio: can't use global as only "
2626                                         "section\n");
2627                                 do_exit++;
2628                                 exit_val = 1;
2629                                 break;
2630                         }
2631                         new_size = (nr_job_sections + 1) * sizeof(char *);
2632                         job_sections = realloc(job_sections, new_size);
2633                         job_sections[nr_job_sections] = strdup(optarg);
2634                         nr_job_sections++;
2635                         break;
2636                         }
2637 #ifdef CONFIG_ZLIB
2638                 case 'X':
2639                         exit_val = iolog_file_inflate(optarg);
2640                         did_arg = true;
2641                         do_exit++;
2642                         break;
2643 #endif
2644                 case 'p':
2645                         did_arg = true;
2646                         if (exec_profile)
2647                                 free(exec_profile);
2648                         exec_profile = strdup(optarg);
2649                         break;
2650                 case FIO_GETOPT_JOB: {
2651                         const char *opt = l_opts[lidx].name;
2652                         char *val = optarg;
2653
2654                         if (!strncmp(opt, "name", 4) && td) {
2655                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2656                                 if (ret)
2657                                         goto out_free;
2658                                 td = NULL;
2659                                 did_arg = true;
2660                         }
2661                         if (!td) {
2662                                 int is_section = !strncmp(opt, "name", 4);
2663                                 int global = 0;
2664
2665                                 if (!is_section || !strncmp(val, "global", 6))
2666                                         global = 1;
2667
2668                                 if (is_section && skip_this_section(val))
2669                                         continue;
2670
2671                                 td = get_new_job(global, &def_thread, true, NULL);
2672                                 if (!td || ioengine_load(td)) {
2673                                         if (td) {
2674                                                 put_job(td);
2675                                                 td = NULL;
2676                                         }
2677                                         do_exit++;
2678                                         exit_val = 1;
2679                                         break;
2680                                 }
2681                                 fio_options_set_ioengine_opts(l_opts, td);
2682                         }
2683
2684                         if ((!val || !strlen(val)) &&
2685                             l_opts[lidx].has_arg == required_argument) {
2686                                 log_err("fio: option %s requires an argument\n", opt);
2687                                 ret = 1;
2688                         } else
2689                                 ret = fio_cmd_option_parse(td, opt, val);
2690
2691                         if (ret) {
2692                                 if (td) {
2693                                         put_job(td);
2694                                         td = NULL;
2695                                 }
2696                                 do_exit++;
2697                                 exit_val = 1;
2698                         }
2699
2700                         if (!ret && !strcmp(opt, "ioengine")) {
2701                                 if (ioengine_load(td)) {
2702                                         put_job(td);
2703                                         td = NULL;
2704                                         do_exit++;
2705                                         exit_val = 1;
2706                                         break;
2707                                 }
2708                                 fio_options_set_ioengine_opts(l_opts, td);
2709                         }
2710                         break;
2711                 }
2712                 case FIO_GETOPT_IOENGINE: {
2713                         const char *opt = l_opts[lidx].name;
2714                         char *val = optarg;
2715
2716                         if (!td)
2717                                 break;
2718
2719                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
2720                         break;
2721                 }
2722                 case 'w':
2723                         warnings_fatal = 1;
2724                         break;
2725                 case 'j':
2726                         max_jobs = atoi(optarg);
2727                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2728                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
2729                                 do_exit++;
2730                                 exit_val = 1;
2731                         }
2732                         break;
2733                 case 'S':
2734                         did_arg = true;
2735 #ifndef CONFIG_NO_SHM
2736                         if (nr_clients) {
2737                                 log_err("fio: can't be both client and server\n");
2738                                 do_exit++;
2739                                 exit_val = 1;
2740                                 break;
2741                         }
2742                         if (optarg)
2743                                 fio_server_set_arg(optarg);
2744                         is_backend = true;
2745                         backend = true;
2746 #else
2747                         log_err("fio: client/server requires SHM support\n");
2748                         do_exit++;
2749                         exit_val = 1;
2750 #endif
2751                         break;
2752                 case 'D':
2753                         if (pid_file)
2754                                 free(pid_file);
2755                         pid_file = strdup(optarg);
2756                         break;
2757                 case 'I':
2758                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
2759                                 /* exit on error and calibration only */
2760                                 did_arg = true;
2761                                 do_exit++;
2762                                 if (ret == -1)
2763                                         exit_val = 1;
2764                         }
2765                         break;
2766                 case 'C':
2767                         did_arg = true;
2768                         if (is_backend) {
2769                                 log_err("fio: can't be both client and server\n");
2770                                 do_exit++;
2771                                 exit_val = 1;
2772                                 break;
2773                         }
2774                         /* if --client parameter contains a pathname */
2775                         if (0 == access(optarg, R_OK)) {
2776                                 /* file contains a list of host addrs or names */
2777                                 char hostaddr[PATH_MAX] = {0};
2778                                 char formatstr[8];
2779                                 FILE * hostf = fopen(optarg, "r");
2780                                 if (!hostf) {
2781                                         log_err("fio: could not open client list file %s for read\n", optarg);
2782                                         do_exit++;
2783                                         exit_val = 1;
2784                                         break;
2785                                 }
2786                                 sprintf(formatstr, "%%%ds", PATH_MAX - 1);
2787                                 /*
2788                                  * read at most PATH_MAX-1 chars from each
2789                                  * record in this file
2790                                  */
2791                                 while (fscanf(hostf, formatstr, hostaddr) == 1) {
2792                                         /* expect EVERY host in file to be valid */
2793                                         if (fio_client_add(&fio_client_ops, hostaddr, &cur_client)) {
2794                                                 log_err("fio: failed adding client %s from file %s\n", hostaddr, optarg);
2795                                                 do_exit++;
2796                                                 exit_val = 1;
2797                                                 break;
2798                                         }
2799                                 }
2800                                 fclose(hostf);
2801                                 break; /* no possibility of job file for "this client only" */
2802                         }
2803                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2804                                 log_err("fio: failed adding client %s\n", optarg);
2805                                 do_exit++;
2806                                 exit_val = 1;
2807                                 break;
2808                         }
2809                         /*
2810                          * If the next argument exists and isn't an option,
2811                          * assume it's a job file for this client only.
2812                          */
2813                         while (optind < argc) {
2814                                 if (!strncmp(argv[optind], "--", 2) ||
2815                                     !strncmp(argv[optind], "-", 1))
2816                                         break;
2817
2818                                 if (fio_client_add_ini_file(cur_client, argv[optind], false))
2819                                         break;
2820                                 optind++;
2821                         }
2822                         break;
2823                 case 'R':
2824                         did_arg = true;
2825                         if (fio_client_add_ini_file(cur_client, optarg, true)) {
2826                                 do_exit++;
2827                                 exit_val = 1;
2828                         }
2829                         break;
2830                 case 'T':
2831                         did_arg = true;
2832                         do_exit++;
2833                         exit_val = fio_monotonic_clocktest(1);
2834                         break;
2835                 case 'G':
2836                         did_arg = true;
2837                         do_exit++;
2838                         exit_val = fio_crctest(optarg);
2839                         break;
2840                 case 'M':
2841                         did_arg = true;
2842                         do_exit++;
2843                         exit_val = fio_memcpy_test(optarg);
2844                         break;
2845                 case 'L': {
2846                         long long val;
2847
2848                         if (check_str_time(optarg, &val, 1)) {
2849                                 log_err("fio: failed parsing time %s\n", optarg);
2850                                 do_exit++;
2851                                 exit_val = 1;
2852                                 break;
2853                         }
2854                         if (val < 1000) {
2855                                 log_err("fio: status interval too small\n");
2856                                 do_exit++;
2857                                 exit_val = 1;
2858                         }
2859                         status_interval = val / 1000;
2860                         break;
2861                         }
2862                 case 'W':
2863                         if (trigger_file)
2864                                 free(trigger_file);
2865                         trigger_file = strdup(optarg);
2866                         break;
2867                 case 'H':
2868                         if (trigger_cmd)
2869                                 free(trigger_cmd);
2870                         trigger_cmd = strdup(optarg);
2871                         break;
2872                 case 'J':
2873                         if (trigger_remote_cmd)
2874                                 free(trigger_remote_cmd);
2875                         trigger_remote_cmd = strdup(optarg);
2876                         break;
2877                 case 'K':
2878                         if (aux_path)
2879                                 free(aux_path);
2880                         aux_path = strdup(optarg);
2881                         break;
2882                 case 'B':
2883                         if (check_str_time(optarg, &trigger_timeout, 1)) {
2884                                 log_err("fio: failed parsing time %s\n", optarg);
2885                                 do_exit++;
2886                                 exit_val = 1;
2887                         }
2888                         trigger_timeout /= 1000000;
2889                         break;
2890
2891                 case 'A':
2892                         did_arg = true;
2893                         merge_blktrace_only = true;
2894                         break;
2895                 case '?':
2896                         log_err("%s: unrecognized option '%s'\n", argv[0],
2897                                                         argv[optind - 1]);
2898                         show_closest_option(argv[optind - 1]);
2899                         fallthrough;
2900                 default:
2901                         do_exit++;
2902                         exit_val = 1;
2903                         break;
2904                 }
2905                 if (do_exit)
2906                         break;
2907         }
2908
2909         if (do_exit && !(is_backend || nr_clients))
2910                 exit(exit_val);
2911
2912         if (nr_clients && fio_clients_connect())
2913                 exit(1);
2914
2915         if (is_backend && backend)
2916                 return fio_start_server(pid_file);
2917         else if (pid_file)
2918                 free(pid_file);
2919
2920         if (td) {
2921                 if (!ret) {
2922                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2923                         if (ret)
2924                                 exit(1);
2925                 }
2926         }
2927
2928         while (!ret && optind < argc) {
2929                 ini_idx++;
2930                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2931                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2932                 optind++;
2933         }
2934
2935 out_free:
2936         return ini_idx;
2937 }
2938
2939 int fio_init_options(void)
2940 {
2941         f_out = stdout;
2942         f_err = stderr;
2943
2944         fio_options_fill_optstring();
2945         fio_options_dup_and_init(l_opts);
2946
2947         atexit(free_shm);
2948
2949         if (fill_def_thread())
2950                 return 1;
2951
2952         return 0;
2953 }
2954
2955 extern int fio_check_options(struct thread_options *);
2956
2957 int parse_options(int argc, char *argv[])
2958 {
2959         const int type = FIO_CLIENT_TYPE_CLI;
2960         int job_files, i;
2961
2962         if (fio_init_options())
2963                 return 1;
2964         if (fio_test_cconv(&def_thread.o))
2965                 log_err("fio: failed internal cconv test\n");
2966
2967         job_files = parse_cmd_line(argc, argv, type);
2968
2969         if (job_files > 0) {
2970                 for (i = 0; i < job_files; i++) {
2971                         if (i && fill_def_thread())
2972                                 return 1;
2973                         if (nr_clients) {
2974                                 if (fio_clients_send_ini(ini_file[i]))
2975                                         return 1;
2976                                 free(ini_file[i]);
2977                         } else if (!is_backend) {
2978                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2979                                         return 1;
2980                                 free(ini_file[i]);
2981                         }
2982                 }
2983         } else if (nr_clients) {
2984                 if (fill_def_thread())
2985                         return 1;
2986                 if (fio_clients_send_ini(NULL))
2987                         return 1;
2988         }
2989
2990         free(ini_file);
2991         fio_options_free(&def_thread);
2992         filesetup_mem_free();
2993
2994         if (!thread_number) {
2995                 if (parse_dryrun())
2996                         return 0;
2997                 if (exec_profile)
2998                         return 0;
2999                 if (is_backend || nr_clients)
3000                         return 0;
3001                 if (did_arg)
3002                         return 0;
3003
3004                 log_err("No job(s) defined\n\n");
3005                 usage(argv[0]);
3006                 return 1;
3007         }
3008
3009         if (output_format & FIO_OUTPUT_NORMAL)
3010                 log_info("%s\n", fio_version_string);
3011
3012         return 0;
3013 }
3014
3015 void options_default_fill(struct thread_options *o)
3016 {
3017         memcpy(o, &def_thread.o, sizeof(*o));
3018 }
3019
3020 struct thread_data *get_global_options(void)
3021 {
3022         return &def_thread;
3023 }