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 bool dump_cmdline;
  49 static bool parse_only;
  50 static bool merge_blktrace_only;
  51
  52 static struct thread_data def_thread;
  53 struct thread_segment segments[REAL_MAX_SEG];
  54 static char **job_sections;
  55 static int nr_job_sections;
  56
  57 bool exitall_on_terminate = false;
  58 int output_format = FIO_OUTPUT_NORMAL;
  59 int eta_print = FIO_ETA_AUTO;
  60 unsigned int eta_interval_msec = 1000;
  61 int eta_new_line = 0;
  62 FILE *f_out = NULL;
  63 FILE *f_err = NULL;
  64 char *exec_profile = NULL;
  65 int warnings_fatal = 0;
  66 int terse_version = 3;
  67 bool is_backend = false;
  68 bool is_local_backend = false;
  69 int nr_clients = 0;
  70 bool log_syslog = false;
  71
  72 bool write_bw_log = false;
  73 bool read_only = false;
  74 int status_interval = 0;
  75
  76 char *trigger_file = NULL;
  77 long long trigger_timeout = 0;
  78 char *trigger_cmd = NULL;
  79 char *trigger_remote_cmd = NULL;
  80
  81 char *aux_path = NULL;
  82
  83 static int prev_group_jobs;
  84
  85 unsigned long fio_debug = 0;
  86 unsigned int fio_debug_jobno = -1;
  87 unsigned int *fio_debug_jobp = NULL;
  88 unsigned int *fio_warned = NULL;
  89
  90 static char cmd_optstr[256];
  91 static bool did_arg;
  92
  93 #define FIO_CLIENT_FLAG         (1 << 16)
  94
  95 /*
  96  * Command line options. These will contain the above, plus a few
  97  * extra that only pertain to fio itself and not jobs.
  98  */
  99 static struct option l_opts[FIO_NR_OPTIONS] = {
 100         {
 101                 .name           = (char *) "output",
 102                 .has_arg        = required_argument,
 103                 .val            = 'o' | FIO_CLIENT_FLAG,
 104         },
 105         {
 106                 .name           = (char *) "latency-log",
 107                 .has_arg        = required_argument,
 108                 .val            = 'l' | FIO_CLIENT_FLAG,
 109         },
 110         {
 111                 .name           = (char *) "bandwidth-log",
 112                 .has_arg        = no_argument,
 113                 .val            = 'b' | FIO_CLIENT_FLAG,
 114         },
 115         {
 116                 .name           = (char *) "minimal",
 117                 .has_arg        = no_argument,
 118                 .val            = 'm' | FIO_CLIENT_FLAG,
 119         },
 120         {
 121                 .name           = (char *) "output-format",
 122                 .has_arg        = required_argument,
 123                 .val            = 'F' | FIO_CLIENT_FLAG,
 124         },
 125         {
 126                 .name           = (char *) "append-terse",
 127                 .has_arg        = optional_argument,
 128                 .val            = 'f',
 129         },
 130         {
 131                 .name           = (char *) "version",
 132                 .has_arg        = no_argument,
 133                 .val            = 'v' | FIO_CLIENT_FLAG,
 134         },
 135         {
 136                 .name           = (char *) "help",
 137                 .has_arg        = no_argument,
 138                 .val            = 'h' | FIO_CLIENT_FLAG,
 139         },
 140         {
 141                 .name           = (char *) "cmdhelp",
 142                 .has_arg        = optional_argument,
 143                 .val            = 'c' | FIO_CLIENT_FLAG,
 144         },
 145         {
 146                 .name           = (char *) "enghelp",
 147                 .has_arg        = optional_argument,
 148                 .val            = 'i' | FIO_CLIENT_FLAG,
 149         },
 150         {
 151                 .name           = (char *) "showcmd",
 152                 .has_arg        = no_argument,
 153                 .val            = 's' | FIO_CLIENT_FLAG,
 154         },
 155         {
 156                 .name           = (char *) "readonly",
 157                 .has_arg        = no_argument,
 158                 .val            = 'r' | FIO_CLIENT_FLAG,
 159         },
 160         {
 161                 .name           = (char *) "eta",
 162                 .has_arg        = required_argument,
 163                 .val            = 'e' | FIO_CLIENT_FLAG,
 164         },
 165         {
 166                 .name           = (char *) "eta-interval",
 167                 .has_arg        = required_argument,
 168                 .val            = 'O' | FIO_CLIENT_FLAG,
 169         },
 170         {
 171                 .name           = (char *) "eta-newline",
 172                 .has_arg        = required_argument,
 173                 .val            = 'E' | FIO_CLIENT_FLAG,
 174         },
 175         {
 176                 .name           = (char *) "debug",
 177                 .has_arg        = required_argument,
 178                 .val            = 'd' | FIO_CLIENT_FLAG,
 179         },
 180         {
 181                 .name           = (char *) "parse-only",
 182                 .has_arg        = no_argument,
 183                 .val            = 'P' | FIO_CLIENT_FLAG,
 184         },
 185         {
 186                 .name           = (char *) "section",
 187                 .has_arg        = required_argument,
 188                 .val            = 'x' | FIO_CLIENT_FLAG,
 189         },
 190 #ifdef CONFIG_ZLIB
 191         {
 192                 .name           = (char *) "inflate-log",
 193                 .has_arg        = required_argument,
 194                 .val            = 'X' | FIO_CLIENT_FLAG,
 195         },
 196 #endif
 197         {
 198                 .name           = (char *) "alloc-size",
 199                 .has_arg        = required_argument,
 200                 .val            = 'a' | FIO_CLIENT_FLAG,
 201         },
 202         {
 203                 .name           = (char *) "profile",
 204                 .has_arg        = required_argument,
 205                 .val            = 'p' | FIO_CLIENT_FLAG,
 206         },
 207         {
 208                 .name           = (char *) "warnings-fatal",
 209                 .has_arg        = no_argument,
 210                 .val            = 'w' | FIO_CLIENT_FLAG,
 211         },
 212         {
 213                 .name           = (char *) "max-jobs",
 214                 .has_arg        = required_argument,
 215                 .val            = 'j' | FIO_CLIENT_FLAG,
 216         },
 217         {
 218                 .name           = (char *) "terse-version",
 219                 .has_arg        = required_argument,
 220                 .val            = 'V' | FIO_CLIENT_FLAG,
 221         },
 222         {
 223                 .name           = (char *) "server",
 224                 .has_arg        = optional_argument,
 225                 .val            = 'S',
 226         },
 227         {       .name           = (char *) "daemonize",
 228                 .has_arg        = required_argument,
 229                 .val            = 'D',
 230         },
 231         {
 232                 .name           = (char *) "client",
 233                 .has_arg        = required_argument,
 234                 .val            = 'C',
 235         },
 236         {
 237                 .name           = (char *) "remote-config",
 238                 .has_arg        = required_argument,
 239                 .val            = 'R',
 240         },
 241         {
 242                 .name           = (char *) "cpuclock-test",
 243                 .has_arg        = no_argument,
 244                 .val            = 'T',
 245         },
 246         {
 247                 .name           = (char *) "crctest",
 248                 .has_arg        = optional_argument,
 249                 .val            = 'G',
 250         },
 251         {
 252                 .name           = (char *) "memcpytest",
 253                 .has_arg        = optional_argument,
 254                 .val            = 'M',
 255         },
 256         {
 257                 .name           = (char *) "idle-prof",
 258                 .has_arg        = required_argument,
 259                 .val            = 'I',
 260         },
 261         {
 262                 .name           = (char *) "status-interval",
 263                 .has_arg        = required_argument,
 264                 .val            = 'L' | FIO_CLIENT_FLAG,
 265         },
 266         {
 267                 .name           = (char *) "trigger-file",
 268                 .has_arg        = required_argument,
 269                 .val            = 'W',
 270         },
 271         {
 272                 .name           = (char *) "trigger-timeout",
 273                 .has_arg        = required_argument,
 274                 .val            = 'B',
 275         },
 276         {
 277                 .name           = (char *) "trigger",
 278                 .has_arg        = required_argument,
 279                 .val            = 'H',
 280         },
 281         {
 282                 .name           = (char *) "trigger-remote",
 283                 .has_arg        = required_argument,
 284                 .val            = 'J',
 285         },
 286         {
 287                 .name           = (char *) "aux-path",
 288                 .has_arg        = required_argument,
 289                 .val            = 'K',
 290         },
 291         {
 292                 .name           = (char *) "merge-blktrace-only",
 293                 .has_arg        = no_argument,
 294                 .val            = 'A' | FIO_CLIENT_FLAG,
 295         },
 296         {
 297                 .name           = NULL,
 298         },
 299 };
 300
 301 void free_threads_shm(void)
 302 {
 303         int i;
 304
 305         for (i = 0; i < nr_segments; i++) {
 306                 struct thread_segment *seg = &segments[i];
 307
 308                 if (seg->threads) {
 309                         void *tp = seg->threads;
 310 #ifndef CONFIG_NO_SHM
 311                         struct shmid_ds sbuf;
 312
 313                         seg->threads = NULL;
 314                         shmdt(tp);
 315                         shmctl(seg->shm_id, IPC_RMID, &sbuf);
 316                         seg->shm_id = -1;
 317 #else
 318                         seg->threads = NULL;
 319                         free(tp);
 320 #endif
 321                 }
 322         }
 323
 324         nr_segments = 0;
 325         cur_segment = 0;
 326 }
 327
 328 static void free_shm(void)
 329 {
 330 #ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
 331         if (nr_segments) {
 332                 flow_exit();
 333                 fio_debug_jobp = NULL;
 334                 fio_warned = NULL;
 335                 free_threads_shm();
 336         }
 337
 338         free(trigger_file);
 339         free(trigger_cmd);
 340         free(trigger_remote_cmd);
 341         trigger_file = trigger_cmd = trigger_remote_cmd = NULL;
 342
 343         options_free(fio_options, &def_thread.o);
 344         fio_filelock_exit();
 345         file_hash_exit();
 346         scleanup();
 347 #endif
 348 }
 349
 350 static int add_thread_segment(void)
 351 {
 352         struct thread_segment *seg = &segments[nr_segments];
 353         size_t size = JOBS_PER_SEG * sizeof(struct thread_data);
 354         int i;
 355
 356         if (nr_segments + 1 >= REAL_MAX_SEG) {
 357                 log_err("error: maximum number of jobs reached.\n");
 358                 return -1;
 359         }
 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                 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC)
 367                         perror("shmget");
 368                 return -1;
 369         }
 370 #else
 371         seg->threads = malloc(size);
 372         if (!seg->threads)
 373                 return -1;
 374 #endif
 375
 376 #ifndef CONFIG_NO_SHM
 377         seg->threads = shmat(seg->shm_id, NULL, 0);
 378         if (seg->threads == (void *) -1) {
 379                 perror("shmat");
 380                 return 1;
 381         }
 382         if (shm_attach_to_open_removed())
 383                 shmctl(seg->shm_id, IPC_RMID, NULL);
 384 #endif
 385
 386         nr_segments++;
 387
 388         memset(seg->threads, 0, JOBS_PER_SEG * sizeof(struct thread_data));
 389         for (i = 0; i < JOBS_PER_SEG; i++)
 390                 DRD_IGNORE_VAR(seg->threads[i]);
 391         seg->nr_threads = 0;
 392
 393         /* Not first segment, we're done */
 394         if (nr_segments != 1) {
 395                 cur_segment++;
 396                 return 0;
 397         }
 398
 399         fio_debug_jobp = (unsigned int *)(seg->threads + JOBS_PER_SEG);
 400         *fio_debug_jobp = -1;
 401         fio_warned = fio_debug_jobp + 1;
 402         *fio_warned = 0;
 403
 404         flow_init();
 405         return 0;
 406 }
 407
 408 /*
 409  * The thread areas are shared between the main process and the job
 410  * threads/processes, and is split into chunks of JOBS_PER_SEG. If the current
 411  * segment has no more room, add a new chunk.
 412  */
 413 static int expand_thread_area(void)
 414 {
 415         struct thread_segment *seg = &segments[cur_segment];
 416
 417         if (nr_segments && seg->nr_threads < JOBS_PER_SEG)
 418                 return 0;
 419
 420         return add_thread_segment();
 421 }
 422
 423 static void dump_print_option(struct print_option *p)
 424 {
 425         const char *delim;
 426
 427         if (!strcmp("description", p->name))
 428                 delim = "\"";
 429         else
 430                 delim = "";
 431
 432         log_info("--%s%s", p->name, p->value ? "" : " ");
 433         if (p->value)
 434                 log_info("=%s%s%s ", delim, p->value, delim);
 435 }
 436
 437 static void dump_opt_list(struct thread_data *td)
 438 {
 439         struct flist_head *entry;
 440         struct print_option *p;
 441
 442         if (flist_empty(&td->opt_list))
 443                 return;
 444
 445         flist_for_each(entry, &td->opt_list) {
 446                 p = flist_entry(entry, struct print_option, list);
 447                 dump_print_option(p);
 448         }
 449 }
 450
 451 static void fio_dump_options_free(struct thread_data *td)
 452 {
 453         while (!flist_empty(&td->opt_list)) {
 454                 struct print_option *p;
 455
 456                 p = flist_first_entry(&td->opt_list, struct print_option, list);
 457                 flist_del_init(&p->list);
 458                 free(p->name);
 459                 free(p->value);
 460                 free(p);
 461         }
 462 }
 463
 464 static void copy_opt_list(struct thread_data *dst, struct thread_data *src)
 465 {
 466         struct flist_head *entry;
 467
 468         if (flist_empty(&src->opt_list))
 469                 return;
 470
 471         flist_for_each(entry, &src->opt_list) {
 472                 struct print_option *srcp, *dstp;
 473
 474                 srcp = flist_entry(entry, struct print_option, list);
 475                 dstp = malloc(sizeof(*dstp));
 476                 dstp->name = strdup(srcp->name);
 477                 if (srcp->value)
 478                         dstp->value = strdup(srcp->value);
 479                 else
 480                         dstp->value = NULL;
 481                 flist_add_tail(&dstp->list, &dst->opt_list);
 482         }
 483 }
 484
 485 /*
 486  * Return a free job structure.
 487  */
 488 static struct thread_data *get_new_job(bool global, struct thread_data *parent,
 489                                        bool preserve_eo, const char *jobname)
 490 {
 491         struct thread_segment *seg;
 492         struct thread_data *td;
 493
 494         if (global)
 495                 return &def_thread;
 496         if (expand_thread_area()) {
 497                 log_err("error: failed to setup shm segment\n");
 498                 return NULL;
 499         }
 500
 501         seg = &segments[cur_segment];
 502         td = &seg->threads[seg->nr_threads++];
 503         thread_number++;
 504         *td = *parent;
 505
 506         INIT_FLIST_HEAD(&td->opt_list);
 507         if (parent != &def_thread)
 508                 copy_opt_list(td, parent);
 509
 510         td->io_ops = NULL;
 511         td->io_ops_init = 0;
 512         if (!preserve_eo)
 513                 td->eo = NULL;
 514
 515         td->o.uid = td->o.gid = -1U;
 516
 517         dup_files(td, parent);
 518         fio_options_mem_dupe(td);
 519
 520         profile_add_hooks(td);
 521
 522         td->thread_number = thread_number;
 523         td->subjob_number = 0;
 524
 525         if (jobname)
 526                 td->o.name = strdup(jobname);
 527
 528         if (!parent->o.group_reporting || parent == &def_thread)
 529                 stat_number++;
 530
 531         return td;
 532 }
 533
 534 static void put_job(struct thread_data *td)
 535 {
 536         if (td == &def_thread)
 537                 return;
 538
 539         profile_td_exit(td);
 540         flow_exit_job(td);
 541
 542         if (td->error)
 543                 log_info("fio: %s\n", td->verror);
 544
 545         fio_options_free(td);
 546         fio_dump_options_free(td);
 547         if (td->io_ops)
 548                 free_ioengine(td);
 549
 550         if (td->o.name)
 551                 free(td->o.name);
 552
 553         memset(td, 0, sizeof(*td));
 554         segments[cur_segment].nr_threads--;
 555         thread_number--;
 556 }
 557
 558 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 559 {
 560         unsigned long long bs = td->o.min_bs[ddir];
 561
 562         assert(ddir_rw(ddir));
 563
 564         if (td->o.rate[ddir])
 565                 td->rate_bps[ddir] = td->o.rate[ddir];
 566         else
 567                 td->rate_bps[ddir] = (uint64_t) td->o.rate_iops[ddir] * bs;
 568
 569         if (!td->rate_bps[ddir]) {
 570                 log_err("rate lower than supported\n");
 571                 return -1;
 572         }
 573
 574         td->rate_next_io_time[ddir] = 0;
 575         td->rate_io_issue_bytes[ddir] = 0;
 576         td->last_usec[ddir] = 0;
 577         return 0;
 578 }
 579
 580 static int setup_rate(struct thread_data *td)
 581 {
 582         int ret = 0;
 583
 584         for_each_rw_ddir(ddir) {
 585                 if (td->o.rate[ddir] || td->o.rate_iops[ddir]) {
 586                         ret |= __setup_rate(td, ddir);
 587                 }
 588         }
 589         return ret;
 590 }
 591
 592 static int fixed_block_size(struct thread_options *o)
 593 {
 594         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 595                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 596                 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
 597                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
 598                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
 599 }
 600
 601 /*
 602  * <3 Johannes
 603  */
 604 static unsigned int gcd(unsigned int m, unsigned int n)
 605 {
 606         if (!n)
 607                 return m;
 608
 609         return gcd(n, m % n);
 610 }
 611
 612 /*
 613  * Lazy way of fixing up options that depend on each other. We could also
 614  * define option callback handlers, but this is easier.
 615  */
 616 static int fixup_options(struct thread_data *td)
 617 {
 618         struct thread_options *o = &td->o;
 619         int ret = 0;
 620
 621         if (read_only && (td_write(td) || td_trim(td))) {
 622                 log_err("fio: trim and write operations are not allowed"
 623                          " with the --readonly parameter.\n");
 624                 ret |= 1;
 625         }
 626
 627 #ifndef CONFIG_PSHARED
 628         if (!o->use_thread) {
 629                 log_info("fio: this platform does not support process shared"
 630                          " mutexes, forcing use of threads. Use the 'thread'"
 631                          " option to get rid of this warning.\n");
 632                 o->use_thread = 1;
 633                 ret |= warnings_fatal;
 634         }
 635 #endif
 636
 637         if (o->write_iolog_file && o->read_iolog_file) {
 638                 log_err("fio: read iolog overrides write_iolog\n");
 639                 free(o->write_iolog_file);
 640                 o->write_iolog_file = NULL;
 641                 ret |= warnings_fatal;
 642         }
 643
 644         if (o->zone_mode == ZONE_MODE_NONE && o->zone_size) {
 645                 log_err("fio: --zonemode=none and --zonesize are not compatible.\n");
 646                 ret |= 1;
 647         }
 648
 649         if (o->zone_mode == ZONE_MODE_STRIDED && !o->zone_size) {
 650                 log_err("fio: --zonesize must be specified when using --zonemode=strided.\n");
 651                 ret |= 1;
 652         }
 653
 654         if (o->zone_mode == ZONE_MODE_NOT_SPECIFIED) {
 655                 if (o->zone_size)
 656                         o->zone_mode = ZONE_MODE_STRIDED;
 657                 else
 658                         o->zone_mode = ZONE_MODE_NONE;
 659         }
 660
 661         /*
 662          * Strided zone mode only really works with 1 file.
 663          */
 664         if (o->zone_mode == ZONE_MODE_STRIDED && o->open_files > 1)
 665                 o->zone_mode = ZONE_MODE_NONE;
 666
 667         /*
 668          * If zone_range isn't specified, backward compatibility dictates it
 669          * should be made equal to zone_size.
 670          */
 671         if (o->zone_mode == ZONE_MODE_STRIDED && !o->zone_range)
 672                 o->zone_range = o->zone_size;
 673
 674         /*
 675          * Reads can do overwrites, we always need to pre-create the file
 676          */
 677         if (td_read(td))
 678                 o->overwrite = 1;
 679
 680         for_each_rw_ddir(ddir) {
 681                 if (!o->min_bs[ddir])
 682                         o->min_bs[ddir] = o->bs[ddir];
 683                 if (!o->max_bs[ddir])
 684                         o->max_bs[ddir] = o->bs[ddir];
 685         }
 686
 687         o->rw_min_bs = -1;
 688         for_each_rw_ddir(ddir) {
 689                 o->rw_min_bs = min(o->rw_min_bs, o->min_bs[ddir]);
 690         }
 691
 692         /*
 693          * For random IO, allow blockalign offset other than min_bs.
 694          */
 695         for_each_rw_ddir(ddir) {
 696                 if (!o->ba[ddir] || !td_random(td))
 697                         o->ba[ddir] = o->min_bs[ddir];
 698         }
 699
 700         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 701             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
 702             o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
 703             !o->norandommap) {
 704                 log_err("fio: Any use of blockalign= turns off randommap\n");
 705                 o->norandommap = 1;
 706                 ret |= warnings_fatal;
 707         }
 708
 709         if (!o->file_size_high)
 710                 o->file_size_high = o->file_size_low;
 711
 712         if (o->start_delay_high) {
 713                 if (!o->start_delay_orig)
 714                         o->start_delay_orig = o->start_delay;
 715                 o->start_delay = rand_between(&td->delay_state,
 716                                                 o->start_delay_orig,
 717                                                 o->start_delay_high);
 718         }
 719
 720         if (o->norandommap && o->verify != VERIFY_NONE
 721             && !fixed_block_size(o))  {
 722                 log_err("fio: norandommap given for variable block sizes, "
 723                         "verify limited\n");
 724                 ret |= warnings_fatal;
 725         }
 726         if (o->bs_unaligned && (o->odirect || td_ioengine_flagged(td, FIO_RAWIO)))
 727                 log_err("fio: bs_unaligned may not work with raw io\n");
 728
 729         /*
 730          * thinktime_spin must be less than thinktime
 731          */
 732         if (o->thinktime_spin > o->thinktime)
 733                 o->thinktime_spin = o->thinktime;
 734
 735         /*
 736          * The low water mark cannot be bigger than the iodepth
 737          */
 738         if (o->iodepth_low > o->iodepth || !o->iodepth_low)
 739                 o->iodepth_low = o->iodepth;
 740
 741         /*
 742          * If batch number isn't set, default to the same as iodepth
 743          */
 744         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 745                 o->iodepth_batch = o->iodepth;
 746
 747         /*
 748          * If max batch complete number isn't set or set incorrectly,
 749          * default to the same as iodepth_batch_complete_min
 750          */
 751         if (o->iodepth_batch_complete_min > o->iodepth_batch_complete_max)
 752                 o->iodepth_batch_complete_max = o->iodepth_batch_complete_min;
 753
 754         /*
 755          * There's no need to check for in-flight overlapping IOs if the job
 756          * isn't changing data or the maximum iodepth is guaranteed to be 1
 757          * when we are not in offload mode
 758          */
 759         if (o->serialize_overlap && !(td->flags & TD_F_READ_IOLOG) &&
 760             (!(td_write(td) || td_trim(td)) || o->iodepth == 1) &&
 761             o->io_submit_mode != IO_MODE_OFFLOAD)
 762                 o->serialize_overlap = 0;
 763
 764         if (o->nr_files > td->files_index)
 765                 o->nr_files = td->files_index;
 766
 767         if (o->open_files > o->nr_files || !o->open_files)
 768                 o->open_files = o->nr_files;
 769
 770         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
 771             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
 772             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 773             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 774                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 775                 ret |= 1;
 776         }
 777         for_each_rw_ddir(ddir) {
 778                 if ((o->rate[ddir] && (o->rate[ddir] < o->ratemin[ddir])) ||
 779                     (o->rate_iops[ddir] && (o->rate_iops[ddir] < o->rate_iops_min[ddir]))) {
 780                         log_err("fio: minimum rate exceeds rate, ddir %d\n", +ddir);
 781                         ret |= 1;
 782                 }
 783         }
 784
 785         if (!o->timeout && o->time_based) {
 786                 log_err("fio: time_based requires a runtime/timeout setting\n");
 787                 o->time_based = 0;
 788                 ret |= warnings_fatal;
 789         }
 790
 791         if (o->fill_device && !o->size)
 792                 o->size = -1ULL;
 793
 794         if (o->verify != VERIFY_NONE) {
 795                 if (td_write(td) && o->do_verify && o->numjobs > 1 &&
 796                     (o->filename ||
 797                      !(o->unique_filename &&
 798                        strstr(o->filename_format, "$jobname") &&
 799                        strstr(o->filename_format, "$jobnum") &&
 800                        strstr(o->filename_format, "$filenum")))) {
 801                         log_info("fio: multiple writers may overwrite blocks "
 802                                 "that belong to other jobs. This can cause "
 803                                 "verification failures.\n");
 804                         ret |= warnings_fatal;
 805                 }
 806
 807                 /*
 808                  * Warn if verification is requested but no verification of any
 809                  * kind can be started due to time constraints
 810                  */
 811                 if (td_write(td) && o->do_verify && o->timeout &&
 812                     o->time_based && !td_read(td) && !o->verify_backlog) {
 813                         log_info("fio: verification read phase will never "
 814                                  "start because write phase uses all of "
 815                                  "runtime\n");
 816                         ret |= warnings_fatal;
 817                 }
 818
 819                 if (!fio_option_is_set(o, refill_buffers))
 820                         o->refill_buffers = 1;
 821
 822                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 823                     !o->verify_interval)
 824                         o->verify_interval = o->min_bs[DDIR_WRITE];
 825
 826                 /*
 827                  * Verify interval must be smaller or equal to the
 828                  * write size.
 829                  */
 830                 if (o->verify_interval > o->min_bs[DDIR_WRITE])
 831                         o->verify_interval = o->min_bs[DDIR_WRITE];
 832                 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
 833                         o->verify_interval = o->min_bs[DDIR_READ];
 834
 835                 /*
 836                  * Verify interval must be a factor of both min and max
 837                  * write size
 838                  */
 839                 if (!o->verify_interval ||
 840                     (o->min_bs[DDIR_WRITE] % o->verify_interval) ||
 841                     (o->max_bs[DDIR_WRITE] % o->verify_interval))
 842                         o->verify_interval = gcd(o->min_bs[DDIR_WRITE],
 843                                                         o->max_bs[DDIR_WRITE]);
 844         }
 845
 846         if (o->pre_read) {
 847                 if (o->invalidate_cache)
 848                         o->invalidate_cache = 0;
 849                 if (td_ioengine_flagged(td, FIO_PIPEIO)) {
 850                         log_info("fio: cannot pre-read files with an IO engine"
 851                                  " that isn't seekable. Pre-read disabled.\n");
 852                         ret |= warnings_fatal;
 853                 }
 854         }
 855
 856         if (o->unit_base == N2S_NONE) {
 857                 if (td_ioengine_flagged(td, FIO_BIT_BASED))
 858                         o->unit_base = N2S_BITPERSEC;
 859                 else
 860                         o->unit_base = N2S_BYTEPERSEC;
 861         }
 862
 863 #ifndef CONFIG_FDATASYNC
 864         if (o->fdatasync_blocks) {
 865                 log_info("fio: this platform does not support fdatasync()"
 866                          " falling back to using fsync().  Use the 'fsync'"
 867                          " option instead of 'fdatasync' to get rid of"
 868                          " this warning\n");
 869                 o->fsync_blocks = o->fdatasync_blocks;
 870                 o->fdatasync_blocks = 0;
 871                 ret |= warnings_fatal;
 872         }
 873 #endif
 874
 875 #ifdef WIN32
 876         /*
 877          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 878          * so fail if we're passed those flags
 879          */
 880         if (td_ioengine_flagged(td, FIO_SYNCIO) && (o->odirect || o->sync_io)) {
 881                 log_err("fio: Windows does not support direct or non-buffered io with"
 882                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 883                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 884                 ret |= 1;
 885         }
 886 #endif
 887
 888         /*
 889          * For fully compressible data, just zero them at init time.
 890          * It's faster than repeatedly filling it. For non-zero
 891          * compression, we should have refill_buffers set. Set it, unless
 892          * the job file already changed it.
 893          */
 894         if (o->compress_percentage) {
 895                 if (o->compress_percentage == 100) {
 896                         o->zero_buffers = 1;
 897                         o->compress_percentage = 0;
 898                 } else if (!fio_option_is_set(o, refill_buffers)) {
 899                         o->refill_buffers = 1;
 900                         td->flags |= TD_F_REFILL_BUFFERS;
 901                 }
 902         }
 903
 904         /*
 905          * Using a non-uniform random distribution excludes usage of
 906          * a random map
 907          */
 908         if (o->random_distribution != FIO_RAND_DIST_RANDOM)
 909                 o->norandommap = 1;
 910
 911         /*
 912          * If size is set but less than the min block size, complain
 913          */
 914         if (o->size && o->size < td_min_bs(td)) {
 915                 log_err("fio: size too small, must not be less than minimum block size: %llu < %llu\n",
 916                         (unsigned long long) o->size, td_min_bs(td));
 917                 ret |= 1;
 918         }
 919
 920         /*
 921          * O_ATOMIC implies O_DIRECT
 922          */
 923         if (o->oatomic)
 924                 o->odirect = 1;
 925
 926         /*
 927          * If randseed is set, that overrides randrepeat
 928          */
 929         if (fio_option_is_set(o, rand_seed))
 930                 o->rand_repeatable = 0;
 931
 932         if (td_ioengine_flagged(td, FIO_NOEXTEND) && o->file_append) {
 933                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
 934                 ret |= 1;
 935         }
 936
 937         if (fio_option_is_set(o, gtod_cpu)) {
 938                 fio_gtod_init();
 939                 fio_gtod_set_cpu(o->gtod_cpu);
 940                 fio_gtod_offload = 1;
 941         }
 942
 943         td->loops = o->loops;
 944         if (!td->loops)
 945                 td->loops = 1;
 946
 947         if (o->block_error_hist && o->nr_files != 1) {
 948                 log_err("fio: block error histogram only available "
 949                         "with a single file per job, but %d files "
 950                         "provided\n", o->nr_files);
 951                 ret |= 1;
 952         }
 953
 954         if (o->disable_lat)
 955                 o->lat_percentiles = 0;
 956         if (o->disable_clat)
 957                 o->clat_percentiles = 0;
 958         if (o->disable_slat)
 959                 o->slat_percentiles = 0;
 960
 961         /*
 962          * Fix these up to be nsec internally
 963          */
 964         o->max_latency *= 1000ULL;
 965         o->latency_target *= 1000ULL;
 966
 967         return ret;
 968 }
 969
 970 static void init_rand_file_service(struct thread_data *td)
 971 {
 972         unsigned long nranges = td->o.nr_files << FIO_FSERVICE_SHIFT;
 973         const unsigned int seed = td->rand_seeds[FIO_RAND_FILE_OFF];
 974
 975         if (td->o.file_service_type == FIO_FSERVICE_ZIPF) {
 976                 zipf_init(&td->next_file_zipf, nranges, td->zipf_theta, seed);
 977                 zipf_disable_hash(&td->next_file_zipf);
 978         } else if (td->o.file_service_type == FIO_FSERVICE_PARETO) {
 979                 pareto_init(&td->next_file_zipf, nranges, td->pareto_h, seed);
 980                 zipf_disable_hash(&td->next_file_zipf);
 981         } else if (td->o.file_service_type == FIO_FSERVICE_GAUSS) {
 982                 gauss_init(&td->next_file_gauss, nranges, td->gauss_dev, seed);
 983                 gauss_disable_hash(&td->next_file_gauss);
 984         }
 985 }
 986
 987 void td_fill_verify_state_seed(struct thread_data *td)
 988 {
 989         bool use64;
 990
 991         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
 992                 use64 = true;
 993         else
 994                 use64 = false;
 995
 996         init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF],
 997                 use64);
 998 }
 999
1000 static void td_fill_rand_seeds_internal(struct thread_data *td, bool use64)
1001 {
1002         uint64_t read_seed = td->rand_seeds[FIO_RAND_BS_OFF];
1003         uint64_t write_seed = td->rand_seeds[FIO_RAND_BS1_OFF];
1004         uint64_t trim_seed = td->rand_seeds[FIO_RAND_BS2_OFF];
1005         int i;
1006
1007         /*
1008          * trimwrite is special in that we need to generate the same
1009          * offsets to get the "write after trim" effect. If we are
1010          * using bssplit to set buffer length distributions, ensure that
1011          * we seed the trim and write generators identically. Ditto for
1012          * verify, read and writes must have the same seed, if we are doing
1013          * read verify.
1014          */
1015         if (td->o.verify != VERIFY_NONE)
1016                 write_seed = read_seed;
1017         if (td_trimwrite(td))
1018                 trim_seed = write_seed;
1019         init_rand_seed(&td->bsrange_state[DDIR_READ], read_seed, use64);
1020         init_rand_seed(&td->bsrange_state[DDIR_WRITE], write_seed, use64);
1021         init_rand_seed(&td->bsrange_state[DDIR_TRIM], trim_seed, use64);
1022
1023         td_fill_verify_state_seed(td);
1024         init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], false);
1025
1026         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
1027                 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF], use64);
1028         else if (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM)
1029                 init_rand_file_service(td);
1030
1031         init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], use64);
1032         init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF], use64);
1033         init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY], use64);
1034         init_rand_seed(&td->poisson_state[0], td->rand_seeds[FIO_RAND_POISSON_OFF], 0);
1035         init_rand_seed(&td->poisson_state[1], td->rand_seeds[FIO_RAND_POISSON2_OFF], 0);
1036         init_rand_seed(&td->poisson_state[2], td->rand_seeds[FIO_RAND_POISSON3_OFF], 0);
1037         init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF], false);
1038         init_rand_seed(&td->zone_state, td->rand_seeds[FIO_RAND_ZONE_OFF], false);
1039         init_rand_seed(&td->prio_state, td->rand_seeds[FIO_RAND_PRIO_CMDS], false);
1040
1041         if (!td_random(td))
1042                 return;
1043
1044         if (td->o.rand_repeatable)
1045                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
1046
1047         init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF], use64);
1048
1049         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1050                 struct frand_state *s = &td->seq_rand_state[i];
1051
1052                 init_rand_seed(s, td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], false);
1053         }
1054 }
1055
1056 void td_fill_rand_seeds(struct thread_data *td)
1057 {
1058         bool use64;
1059
1060         if (td->o.allrand_repeatable) {
1061                 unsigned int i;
1062
1063                 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
1064                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
1065                                 + i;
1066         }
1067
1068         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
1069                 use64 = true;
1070         else
1071                 use64 = false;
1072
1073         td_fill_rand_seeds_internal(td, use64);
1074
1075         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF], use64);
1076         frand_copy(&td->buf_state_prev, &td->buf_state);
1077 }
1078
1079 /*
1080  * Initializes the ioengine configured for a job, if it has not been done so
1081  * already.
1082  */
1083 int ioengine_load(struct thread_data *td)
1084 {
1085         if (!td->o.ioengine) {
1086                 log_err("fio: internal fault, no IO engine specified\n");
1087                 return 1;
1088         }
1089
1090         if (td->io_ops) {
1091                 struct ioengine_ops *ops;
1092                 void *dlhandle;
1093
1094                 /* An engine is loaded, but the requested ioengine
1095                  * may have changed.
1096                  */
1097                 if (!strcmp(td->io_ops->name, td->o.ioengine)) {
1098                         /* The right engine is already loaded */
1099                         return 0;
1100                 }
1101
1102                 /*
1103                  * Name of file and engine may be different, load ops
1104                  * for this name and see if they match. If they do, then
1105                  * the engine is unchanged.
1106                  */
1107                 dlhandle = td->io_ops_dlhandle;
1108                 ops = load_ioengine(td);
1109                 if (!ops)
1110                         goto fail;
1111
1112                 if (ops == td->io_ops && dlhandle == td->io_ops_dlhandle) {
1113                         if (dlhandle)
1114                                 dlclose(dlhandle);
1115                         return 0;
1116                 }
1117
1118                 if (dlhandle && dlhandle != td->io_ops_dlhandle)
1119                         dlclose(dlhandle);
1120
1121                 /* Unload the old engine. */
1122                 free_ioengine(td);
1123         }
1124
1125         td->io_ops = load_ioengine(td);
1126         if (!td->io_ops)
1127                 goto fail;
1128
1129         if (td->io_ops->option_struct_size && td->io_ops->options) {
1130                 /*
1131                  * In cases where td->eo is set, clone it for a child thread.
1132                  * This requires that the parent thread has the same ioengine,
1133                  * but that requirement must be enforced by the code which
1134                  * cloned the thread.
1135                  */
1136                 void *origeo = td->eo;
1137                 /*
1138                  * Otherwise use the default thread options.
1139                  */
1140                 if (!origeo && td != &def_thread && def_thread.eo &&
1141                     def_thread.io_ops->options == td->io_ops->options)
1142                         origeo = def_thread.eo;
1143
1144                 options_init(td->io_ops->options);
1145                 td->eo = malloc(td->io_ops->option_struct_size);
1146                 /*
1147                  * Use the default thread as an option template if this uses the
1148                  * same options structure and there are non-default options
1149                  * used.
1150                  */
1151                 if (origeo) {
1152                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
1153                         options_mem_dupe(td->io_ops->options, td->eo);
1154                 } else {
1155                         memset(td->eo, 0, td->io_ops->option_struct_size);
1156                         fill_default_options(td->eo, td->io_ops->options);
1157                 }
1158                 *(struct thread_data **)td->eo = td;
1159         }
1160
1161         if (td->o.odirect)
1162                 td->io_ops->flags |= FIO_RAWIO;
1163
1164         td_set_ioengine_flags(td);
1165         return 0;
1166
1167 fail:
1168         log_err("fio: failed to load engine\n");
1169         return 1;
1170
1171 }
1172
1173 static void init_flags(struct thread_data *td)
1174 {
1175         struct thread_options *o = &td->o;
1176         int i;
1177
1178         if (o->verify_backlog)
1179                 td->flags |= TD_F_VER_BACKLOG;
1180         if (o->trim_backlog)
1181                 td->flags |= TD_F_TRIM_BACKLOG;
1182         if (o->read_iolog_file)
1183                 td->flags |= TD_F_READ_IOLOG;
1184         if (o->refill_buffers)
1185                 td->flags |= TD_F_REFILL_BUFFERS;
1186         /*
1187          * Always scramble buffers if asked to
1188          */
1189         if (o->scramble_buffers && fio_option_is_set(o, scramble_buffers))
1190                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1191         /*
1192          * But also scramble buffers, unless we were explicitly asked
1193          * to zero them.
1194          */
1195         if (o->scramble_buffers && !(o->zero_buffers &&
1196             fio_option_is_set(o, zero_buffers)))
1197                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1198         if (o->verify != VERIFY_NONE)
1199                 td->flags |= TD_F_DO_VERIFY;
1200
1201         if (o->verify_async || o->io_submit_mode == IO_MODE_OFFLOAD)
1202                 td->flags |= TD_F_NEED_LOCK;
1203
1204         if (o->mem_type == MEM_CUDA_MALLOC)
1205                 td->flags &= ~TD_F_SCRAMBLE_BUFFERS;
1206
1207         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1208                 if (option_check_rate(td, i)) {
1209                         td->flags |= TD_F_CHECK_RATE;
1210                         break;
1211                 }
1212         }
1213 }
1214
1215 static int setup_random_seeds(struct thread_data *td)
1216 {
1217         uint64_t seed;
1218         unsigned int i;
1219
1220         if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed)) {
1221                 int ret = init_random_seeds(td->rand_seeds, sizeof(td->rand_seeds));
1222                 if (!ret)
1223                         td_fill_rand_seeds(td);
1224                 return ret;
1225         }
1226
1227         seed = td->o.rand_seed;
1228         for (i = 0; i < 4; i++)
1229                 seed *= 0x9e370001UL;
1230
1231         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
1232                 td->rand_seeds[i] = seed * td->thread_number + i;
1233                 seed *= 0x9e370001UL;
1234         }
1235
1236         td_fill_rand_seeds(td);
1237         return 0;
1238 }
1239
1240 enum {
1241         FPRE_NONE = 0,
1242         FPRE_JOBNAME,
1243         FPRE_JOBNUM,
1244         FPRE_FILENUM
1245 };
1246
1247 static struct fpre_keyword {
1248         const char *keyword;
1249         size_t strlen;
1250         int key;
1251 } fpre_keywords[] = {
1252         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
1253         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
1254         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
1255         { .keyword = NULL, },
1256         };
1257
1258 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
1259                            const char *jobname, int jobnum, int filenum)
1260 {
1261         struct fpre_keyword *f;
1262         char copy[PATH_MAX];
1263         size_t dst_left = PATH_MAX - 1;
1264
1265         if (!o->filename_format || !strlen(o->filename_format)) {
1266                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
1267                 return buf;
1268         }
1269
1270         for (f = &fpre_keywords[0]; f->keyword; f++)
1271                 f->strlen = strlen(f->keyword);
1272
1273         snprintf(buf, buf_size, "%s", o->filename_format);
1274
1275         memset(copy, 0, sizeof(copy));
1276         for (f = &fpre_keywords[0]; f->keyword; f++) {
1277                 do {
1278                         size_t pre_len, post_start = 0;
1279                         char *str, *dst = copy;
1280
1281                         str = strcasestr(buf, f->keyword);
1282                         if (!str)
1283                                 break;
1284
1285                         pre_len = str - buf;
1286                         if (strlen(str) != f->strlen)
1287                                 post_start = pre_len + f->strlen;
1288
1289                         if (pre_len) {
1290                                 strncpy(dst, buf, pre_len);
1291                                 dst += pre_len;
1292                                 dst_left -= pre_len;
1293                         }
1294
1295                         switch (f->key) {
1296                         case FPRE_JOBNAME: {
1297                                 int ret;
1298
1299                                 ret = snprintf(dst, dst_left, "%s", jobname);
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_JOBNUM: {
1313                                 int ret;
1314
1315                                 ret = snprintf(dst, dst_left, "%d", jobnum);
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                         case FPRE_FILENUM: {
1329                                 int ret;
1330
1331                                 ret = snprintf(dst, dst_left, "%d", filenum);
1332                                 if (ret < 0)
1333                                         break;
1334                                 else if (ret > dst_left) {
1335                                         log_err("fio: truncated filename\n");
1336                                         dst += dst_left;
1337                                         dst_left = 0;
1338                                 } else {
1339                                         dst += ret;
1340                                         dst_left -= ret;
1341                                 }
1342                                 break;
1343                                 }
1344                         default:
1345                                 assert(0);
1346                                 break;
1347                         }
1348
1349                         if (post_start)
1350                                 strncpy(dst, buf + post_start, dst_left);
1351
1352                         snprintf(buf, buf_size, "%s", copy);
1353                 } while (1);
1354         }
1355
1356         return buf;
1357 }
1358
1359 bool parse_dryrun(void)
1360 {
1361         return dump_cmdline || parse_only;
1362 }
1363
1364 static void gen_log_name(char *name, size_t size, const char *logtype,
1365                          const char *logname, unsigned int num,
1366                          const char *suf, int per_job)
1367 {
1368         if (per_job)
1369                 snprintf(name, size, "%s_%s.%d.%s", logname, logtype, num, suf);
1370         else
1371                 snprintf(name, size, "%s_%s.%s", logname, logtype, suf);
1372 }
1373
1374 static int check_waitees(char *waitee)
1375 {
1376         struct thread_data *td;
1377         int i, ret = 0;
1378
1379         for_each_td(td, i) {
1380                 if (td->subjob_number)
1381                         continue;
1382
1383                 ret += !strcmp(td->o.name, waitee);
1384         }
1385
1386         return ret;
1387 }
1388
1389 static bool wait_for_ok(const char *jobname, struct thread_options *o)
1390 {
1391         int nw;
1392
1393         if (!o->wait_for)
1394                 return true;
1395
1396         if (!strcmp(jobname, o->wait_for)) {
1397                 log_err("%s: a job cannot wait for itself (wait_for=%s).\n",
1398                                 jobname, o->wait_for);
1399                 return false;
1400         }
1401
1402         if (!(nw = check_waitees(o->wait_for))) {
1403                 log_err("%s: waitee job %s unknown.\n", jobname, o->wait_for);
1404                 return false;
1405         }
1406
1407         if (nw > 1) {
1408                 log_err("%s: multiple waitees %s found,\n"
1409                         "please avoid duplicates when using wait_for option.\n",
1410                                 jobname, o->wait_for);
1411                 return false;
1412         }
1413
1414         return true;
1415 }
1416
1417 /*
1418  * Treat an empty log file name the same as a one not given
1419  */
1420 static const char *make_log_name(const char *logname, const char *jobname)
1421 {
1422         if (logname && strcmp(logname, ""))
1423                 return logname;
1424
1425         return jobname;
1426 }
1427
1428 /*
1429  * Adds a job to the list of things todo. Sanitizes the various options
1430  * to make sure we don't have conflicts, and initializes various
1431  * members of td.
1432  */
1433 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1434                    int recursed, int client_type)
1435 {
1436         unsigned int i;
1437         char fname[PATH_MAX + 1];
1438         int numjobs, file_alloced;
1439         struct thread_options *o = &td->o;
1440         char logname[PATH_MAX + 32];
1441
1442         /*
1443          * the def_thread is just for options, it's not a real job
1444          */
1445         if (td == &def_thread)
1446                 return 0;
1447
1448         init_flags(td);
1449
1450         /*
1451          * if we are just dumping the output command line, don't add the job
1452          */
1453         if (parse_dryrun()) {
1454                 put_job(td);
1455                 return 0;
1456         }
1457
1458         td->client_type = client_type;
1459
1460         if (profile_td_init(td))
1461                 goto err;
1462
1463         if (ioengine_load(td))
1464                 goto err;
1465
1466         file_alloced = 0;
1467         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1468                 file_alloced = 1;
1469
1470                 if (o->nr_files == 1 && exists_and_not_regfile(jobname))
1471                         add_file(td, jobname, job_add_num, 0);
1472                 else {
1473                         for (i = 0; i < o->nr_files; i++)
1474                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1475                 }
1476         }
1477
1478         if (setup_random_seeds(td)) {
1479                 td_verror(td, errno, "setup_random_seeds");
1480                 goto err;
1481         }
1482
1483         if (fixup_options(td))
1484                 goto err;
1485
1486         /*
1487          * Belongs to fixup_options, but o->name is not necessarily set as yet
1488          */
1489         if (!wait_for_ok(jobname, o))
1490                 goto err;
1491
1492         flow_init_job(td);
1493
1494         /*
1495          * IO engines only need this for option callbacks, and the address may
1496          * change in subprocesses.
1497          */
1498         if (td->eo)
1499                 *(struct thread_data **)td->eo = NULL;
1500
1501         if (td_ioengine_flagged(td, FIO_DISKLESSIO)) {
1502                 struct fio_file *f;
1503
1504                 for_each_file(td, f, i)
1505                         f->real_file_size = -1ULL;
1506         }
1507
1508         td->sem = fio_sem_init(FIO_SEM_LOCKED);
1509
1510         td->ts.clat_percentiles = o->clat_percentiles;
1511         td->ts.lat_percentiles = o->lat_percentiles;
1512         td->ts.slat_percentiles = o->slat_percentiles;
1513         td->ts.percentile_precision = o->percentile_precision;
1514         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1515         td->ts.sig_figs = o->sig_figs;
1516
1517         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1518                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1519                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1520                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1521                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1522                 td->ts.iops_stat[i].min_val = ULONG_MAX;
1523                 td->ts.clat_high_prio_stat[i].min_val = ULONG_MAX;
1524                 td->ts.clat_low_prio_stat[i].min_val = ULONG_MAX;
1525         }
1526         td->ts.sync_stat.min_val = ULONG_MAX;
1527         td->ddir_seq_nr = o->ddir_seq_nr;
1528
1529         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1530                 prev_group_jobs = 0;
1531                 groupid++;
1532                 if (groupid == INT_MAX) {
1533                         log_err("fio: too many groups defined\n");
1534                         goto err;
1535                 }
1536         }
1537
1538         td->groupid = groupid;
1539         prev_group_jobs++;
1540
1541         if (setup_rate(td))
1542                 goto err;
1543
1544         if (o->write_lat_log) {
1545                 struct log_params p = {
1546                         .td = td,
1547                         .avg_msec = o->log_avg_msec,
1548                         .hist_msec = o->log_hist_msec,
1549                         .hist_coarseness = o->log_hist_coarseness,
1550                         .log_type = IO_LOG_TYPE_LAT,
1551                         .log_offset = o->log_offset,
1552                         .log_gz = o->log_gz,
1553                         .log_gz_store = o->log_gz_store,
1554                 };
1555                 const char *pre = make_log_name(o->lat_log_file, o->name);
1556                 const char *suf;
1557
1558                 if (p.log_gz_store)
1559                         suf = "log.fz";
1560                 else
1561                         suf = "log";
1562
1563                 gen_log_name(logname, sizeof(logname), "lat", pre,
1564                                 td->thread_number, suf, o->per_job_logs);
1565                 setup_log(&td->lat_log, &p, logname);
1566
1567                 gen_log_name(logname, sizeof(logname), "slat", pre,
1568                                 td->thread_number, suf, o->per_job_logs);
1569                 setup_log(&td->slat_log, &p, logname);
1570
1571                 gen_log_name(logname, sizeof(logname), "clat", pre,
1572                                 td->thread_number, suf, o->per_job_logs);
1573                 setup_log(&td->clat_log, &p, logname);
1574
1575         }
1576
1577         if (o->write_hist_log) {
1578                 struct log_params p = {
1579                         .td = td,
1580                         .avg_msec = o->log_avg_msec,
1581                         .hist_msec = o->log_hist_msec,
1582                         .hist_coarseness = o->log_hist_coarseness,
1583                         .log_type = IO_LOG_TYPE_HIST,
1584                         .log_offset = o->log_offset,
1585                         .log_gz = o->log_gz,
1586                         .log_gz_store = o->log_gz_store,
1587                 };
1588                 const char *pre = make_log_name(o->hist_log_file, o->name);
1589                 const char *suf;
1590
1591 #ifndef CONFIG_ZLIB
1592                 if (td->client_type) {
1593                         log_err("fio: --write_hist_log requires zlib in client/server mode\n");
1594                         goto err;
1595                 }
1596 #endif
1597
1598                 if (p.log_gz_store)
1599                         suf = "log.fz";
1600                 else
1601                         suf = "log";
1602
1603                 gen_log_name(logname, sizeof(logname), "clat_hist", pre,
1604                                 td->thread_number, suf, o->per_job_logs);
1605                 setup_log(&td->clat_hist_log, &p, logname);
1606         }
1607
1608         if (o->write_bw_log) {
1609                 struct log_params p = {
1610                         .td = td,
1611                         .avg_msec = o->log_avg_msec,
1612                         .hist_msec = o->log_hist_msec,
1613                         .hist_coarseness = o->log_hist_coarseness,
1614                         .log_type = IO_LOG_TYPE_BW,
1615                         .log_offset = o->log_offset,
1616                         .log_gz = o->log_gz,
1617                         .log_gz_store = o->log_gz_store,
1618                 };
1619                 const char *pre = make_log_name(o->bw_log_file, o->name);
1620                 const char *suf;
1621
1622                 if (fio_option_is_set(o, bw_avg_time))
1623                         p.avg_msec = min(o->log_avg_msec, o->bw_avg_time);
1624                 else
1625                         o->bw_avg_time = p.avg_msec;
1626
1627                 p.hist_msec = o->log_hist_msec;
1628                 p.hist_coarseness = o->log_hist_coarseness;
1629
1630                 if (p.log_gz_store)
1631                         suf = "log.fz";
1632                 else
1633                         suf = "log";
1634
1635                 gen_log_name(logname, sizeof(logname), "bw", pre,
1636                                 td->thread_number, suf, o->per_job_logs);
1637                 setup_log(&td->bw_log, &p, logname);
1638         }
1639         if (o->write_iops_log) {
1640                 struct log_params p = {
1641                         .td = td,
1642                         .avg_msec = o->log_avg_msec,
1643                         .hist_msec = o->log_hist_msec,
1644                         .hist_coarseness = o->log_hist_coarseness,
1645                         .log_type = IO_LOG_TYPE_IOPS,
1646                         .log_offset = o->log_offset,
1647                         .log_gz = o->log_gz,
1648                         .log_gz_store = o->log_gz_store,
1649                 };
1650                 const char *pre = make_log_name(o->iops_log_file, o->name);
1651                 const char *suf;
1652
1653                 if (fio_option_is_set(o, iops_avg_time))
1654                         p.avg_msec = min(o->log_avg_msec, o->iops_avg_time);
1655                 else
1656                         o->iops_avg_time = p.avg_msec;
1657
1658                 p.hist_msec = o->log_hist_msec;
1659                 p.hist_coarseness = o->log_hist_coarseness;
1660
1661                 if (p.log_gz_store)
1662                         suf = "log.fz";
1663                 else
1664                         suf = "log";
1665
1666                 gen_log_name(logname, sizeof(logname), "iops", pre,
1667                                 td->thread_number, suf, o->per_job_logs);
1668                 setup_log(&td->iops_log, &p, logname);
1669         }
1670
1671         if (!o->name)
1672                 o->name = strdup(jobname);
1673
1674         if (output_format & FIO_OUTPUT_NORMAL) {
1675                 if (!job_add_num) {
1676                         if (is_backend && !recursed)
1677                                 fio_server_send_add_job(td);
1678
1679                         if (!td_ioengine_flagged(td, FIO_NOIO)) {
1680                                 char *c1, *c2, *c3, *c4;
1681                                 char *c5 = NULL, *c6 = NULL;
1682                                 int i2p = is_power_of_2(o->kb_base);
1683                                 struct buf_output out;
1684
1685                                 c1 = num2str(o->min_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1686                                 c2 = num2str(o->max_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1687                                 c3 = num2str(o->min_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1688                                 c4 = num2str(o->max_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1689
1690                                 if (!o->bs_is_seq_rand) {
1691                                         c5 = num2str(o->min_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1692                                         c6 = num2str(o->max_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1693                                 }
1694
1695                                 buf_output_init(&out);
1696                                 __log_buf(&out, "%s: (g=%d): rw=%s, ", td->o.name,
1697                                                         td->groupid,
1698                                                         ddir_str(o->td_ddir));
1699
1700                                 if (o->bs_is_seq_rand)
1701                                         __log_buf(&out, "bs=(R) %s-%s, (W) %s-%s, bs_is_seq_rand, ",
1702                                                         c1, c2, c3, c4);
1703                                 else
1704                                         __log_buf(&out, "bs=(R) %s-%s, (W) %s-%s, (T) %s-%s, ",
1705                                                         c1, c2, c3, c4, c5, c6);
1706
1707                                 __log_buf(&out, "ioengine=%s, iodepth=%u\n",
1708                                                 td->io_ops->name, o->iodepth);
1709                                 log_info_buf(out.buf, out.buflen);
1710                                 buf_output_free(&out);
1711
1712                                 free(c1);
1713                                 free(c2);
1714                                 free(c3);
1715                                 free(c4);
1716                                 free(c5);
1717                                 free(c6);
1718                         }
1719                 } else if (job_add_num == 1)
1720                         log_info("...\n");
1721         }
1722
1723         if (td_steadystate_init(td))
1724                 goto err;
1725
1726         if (o->merge_blktrace_file && !merge_blktrace_iologs(td))
1727                 goto err;
1728
1729         if (merge_blktrace_only) {
1730                 put_job(td);
1731                 return 0;
1732         }
1733
1734         /*
1735          * recurse add identical jobs, clear numjobs and stonewall options
1736          * as they don't apply to sub-jobs
1737          */
1738         numjobs = o->numjobs;
1739         while (--numjobs) {
1740                 struct thread_data *td_new = get_new_job(false, td, true, jobname);
1741
1742                 if (!td_new)
1743                         goto err;
1744
1745                 td_new->o.numjobs = 1;
1746                 td_new->o.stonewall = 0;
1747                 td_new->o.new_group = 0;
1748                 td_new->subjob_number = numjobs;
1749                 td_new->o.ss_dur = o->ss_dur * 1000000l;
1750                 td_new->o.ss_limit = o->ss_limit;
1751
1752                 if (file_alloced) {
1753                         if (td_new->files) {
1754                                 struct fio_file *f;
1755                                 for_each_file(td_new, f, i)
1756                                         fio_file_free(f);
1757                                 free(td_new->files);
1758                                 td_new->files = NULL;
1759                         }
1760                         td_new->files_index = 0;
1761                         td_new->files_size = 0;
1762                         if (td_new->o.filename) {
1763                                 free(td_new->o.filename);
1764                                 td_new->o.filename = NULL;
1765                         }
1766                 }
1767
1768                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1769                         goto err;
1770         }
1771
1772         return 0;
1773 err:
1774         put_job(td);
1775         return -1;
1776 }
1777
1778 /*
1779  * Parse as if 'o' was a command line
1780  */
1781 void add_job_opts(const char **o, int client_type)
1782 {
1783         struct thread_data *td, *td_parent;
1784         int i, in_global = 1;
1785         char jobname[32];
1786
1787         i = 0;
1788         td_parent = td = NULL;
1789         while (o[i]) {
1790                 if (!strncmp(o[i], "name", 4)) {
1791                         in_global = 0;
1792                         if (td)
1793                                 add_job(td, jobname, 0, 0, client_type);
1794                         td = NULL;
1795                         sprintf(jobname, "%s", o[i] + 5);
1796                 }
1797                 if (in_global && !td_parent)
1798                         td_parent = get_new_job(true, &def_thread, false, jobname);
1799                 else if (!in_global && !td) {
1800                         if (!td_parent)
1801                                 td_parent = &def_thread;
1802                         td = get_new_job(false, td_parent, false, jobname);
1803                 }
1804                 if (in_global)
1805                         fio_options_parse(td_parent, (char **) &o[i], 1);
1806                 else
1807                         fio_options_parse(td, (char **) &o[i], 1);
1808                 i++;
1809         }
1810
1811         if (td)
1812                 add_job(td, jobname, 0, 0, client_type);
1813 }
1814
1815 static int skip_this_section(const char *name)
1816 {
1817         int i;
1818
1819         if (!nr_job_sections)
1820                 return 0;
1821         if (!strncmp(name, "global", 6))
1822                 return 0;
1823
1824         for (i = 0; i < nr_job_sections; i++)
1825                 if (!strcmp(job_sections[i], name))
1826                         return 0;
1827
1828         return 1;
1829 }
1830
1831 static int is_empty_or_comment(char *line)
1832 {
1833         unsigned int i;
1834
1835         for (i = 0; i < strlen(line); i++) {
1836                 if (line[i] == ';')
1837                         return 1;
1838                 if (line[i] == '#')
1839                         return 1;
1840                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1841                         return 0;
1842         }
1843
1844         return 1;
1845 }
1846
1847 /*
1848  * This is our [ini] type file parser.
1849  */
1850 static int __parse_jobs_ini(struct thread_data *td,
1851                 char *file, int is_buf, int stonewall_flag, int type,
1852                 int nested, char *name, char ***popts, int *aopts, int *nopts)
1853 {
1854         bool global = false;
1855         bool stdin_occupied = false;
1856         char *string;
1857         FILE *f;
1858         char *p;
1859         int ret = 0, stonewall;
1860         int first_sect = 1;
1861         int skip_fgets = 0;
1862         int inside_skip = 0;
1863         char **opts;
1864         int i, alloc_opts, num_opts;
1865
1866         dprint(FD_PARSE, "Parsing ini file %s\n", file);
1867         assert(td || !nested);
1868
1869         if (is_buf)
1870                 f = NULL;
1871         else {
1872                 if (!strcmp(file, "-")) {
1873                         f = stdin;
1874                         stdin_occupied = true;
1875                 } else
1876                         f = fopen(file, "r");
1877
1878                 if (!f) {
1879                         int __err = errno;
1880
1881                         log_err("fio: unable to open '%s' job file\n", file);
1882                         if (td)
1883                                 td_verror(td, __err, "job file open");
1884                         return 1;
1885                 }
1886         }
1887
1888         string = malloc(OPT_LEN_MAX);
1889
1890         /*
1891          * it's really 256 + small bit, 280 should suffice
1892          */
1893         if (!nested) {
1894                 name = malloc(280);
1895                 memset(name, 0, 280);
1896         }
1897
1898         opts = NULL;
1899         if (nested && popts) {
1900                 opts = *popts;
1901                 alloc_opts = *aopts;
1902                 num_opts = *nopts;
1903         }
1904
1905         if (!opts) {
1906                 alloc_opts = 8;
1907                 opts = malloc(sizeof(char *) * alloc_opts);
1908                 num_opts = 0;
1909         }
1910
1911         stonewall = stonewall_flag;
1912         do {
1913                 /*
1914                  * if skip_fgets is set, we already have loaded a line we
1915                  * haven't handled.
1916                  */
1917                 if (!skip_fgets) {
1918                         if (is_buf)
1919                                 p = strsep(&file, "\n");
1920                         else
1921                                 p = fgets(string, OPT_LEN_MAX, f);
1922                         if (!p)
1923                                 break;
1924                 }
1925
1926                 skip_fgets = 0;
1927                 strip_blank_front(&p);
1928                 strip_blank_end(p);
1929
1930                 dprint(FD_PARSE, "%s\n", p);
1931                 if (is_empty_or_comment(p))
1932                         continue;
1933
1934                 if (!nested) {
1935                         if (sscanf(p, "[%255[^\n]]", name) != 1) {
1936                                 if (inside_skip)
1937                                         continue;
1938
1939                                 log_err("fio: option <%s> outside of "
1940                                         "[] job section\n", p);
1941                                 ret = 1;
1942                                 break;
1943                         }
1944
1945                         name[strlen(name) - 1] = '\0';
1946
1947                         if (skip_this_section(name)) {
1948                                 inside_skip = 1;
1949                                 continue;
1950                         } else
1951                                 inside_skip = 0;
1952
1953                         dprint(FD_PARSE, "Parsing section [%s]\n", name);
1954
1955                         global = !strncmp(name, "global", 6);
1956
1957                         if (dump_cmdline) {
1958                                 if (first_sect)
1959                                         log_info("fio ");
1960                                 if (!global)
1961                                         log_info("--name=%s ", name);
1962                                 first_sect = 0;
1963                         }
1964
1965                         td = get_new_job(global, &def_thread, false, name);
1966                         if (!td) {
1967                                 ret = 1;
1968                                 break;
1969                         }
1970
1971                         /*
1972                          * Separate multiple job files by a stonewall
1973                          */
1974                         if (!global && stonewall) {
1975                                 td->o.stonewall = stonewall;
1976                                 stonewall = 0;
1977                         }
1978
1979                         num_opts = 0;
1980                         memset(opts, 0, alloc_opts * sizeof(char *));
1981                 }
1982                 else
1983                         skip_fgets = 1;
1984
1985                 while (1) {
1986                         if (!skip_fgets) {
1987                                 if (is_buf)
1988                                         p = strsep(&file, "\n");
1989                                 else
1990                                         p = fgets(string, OPT_LEN_MAX, f);
1991                                 if (!p)
1992                                         break;
1993                                 dprint(FD_PARSE, "%s", p);
1994                         }
1995                         else
1996                                 skip_fgets = 0;
1997
1998                         if (is_empty_or_comment(p))
1999                                 continue;
2000
2001                         strip_blank_front(&p);
2002
2003                         /*
2004                          * new section, break out and make sure we don't
2005                          * fgets() a new line at the top.
2006                          */
2007                         if (p[0] == '[') {
2008                                 if (nested) {
2009                                         log_err("No new sections in included files\n");
2010                                         ret = 1;
2011                                         goto out;
2012                                 }
2013
2014                                 skip_fgets = 1;
2015                                 break;
2016                         }
2017
2018                         strip_blank_end(p);
2019
2020                         if (!strncmp(p, "include", strlen("include"))) {
2021                                 char *filename = p + strlen("include") + 1,
2022                                         *ts, *full_fn = NULL;
2023
2024                                 /*
2025                                  * Allow for the include filename
2026                                  * specification to be relative.
2027                                  */
2028                                 if (access(filename, F_OK) &&
2029                                     (ts = strrchr(file, '/'))) {
2030                                         if (asprintf(&full_fn, "%.*s%s",
2031                                                  (int)(ts - file + 1), file,
2032                                                  filename) < 0) {
2033                                                 ret = ENOMEM;
2034                                                 break;
2035                                         }
2036                                         filename = full_fn;
2037                                 }
2038
2039                                 ret = __parse_jobs_ini(td, filename, is_buf,
2040                                                        stonewall_flag, type, 1,
2041                                                        name, &opts,
2042                                                        &alloc_opts, &num_opts);
2043
2044                                 if (ret) {
2045                                         log_err("Error %d while parsing "
2046                                                 "include file %s\n",
2047                                                 ret, filename);
2048                                 }
2049
2050                                 if (full_fn)
2051                                         free(full_fn);
2052
2053                                 if (ret)
2054                                         break;
2055
2056                                 continue;
2057                         }
2058
2059                         if (num_opts == alloc_opts) {
2060                                 alloc_opts <<= 1;
2061                                 opts = realloc(opts,
2062                                                 alloc_opts * sizeof(char *));
2063                         }
2064
2065                         opts[num_opts] = strdup(p);
2066                         num_opts++;
2067                 }
2068
2069                 if (nested) {
2070                         *popts = opts;
2071                         *aopts = alloc_opts;
2072                         *nopts = num_opts;
2073                         goto out;
2074                 }
2075
2076                 ret = fio_options_parse(td, opts, num_opts);
2077
2078                 if (!ret && td->o.read_iolog_file != NULL) {
2079                         char *fname = get_name_by_idx(td->o.read_iolog_file,
2080                                                       td->subjob_number);
2081                         if (!strcmp(fname, "-")) {
2082                                 if (stdin_occupied) {
2083                                         log_err("fio: only one user (read_iolog_file/job "
2084                                                 "file) of stdin is permitted at once but "
2085                                                 "more than one was found.\n");
2086                                         ret = 1;
2087                                 }
2088                                 stdin_occupied = true;
2089                         }
2090                 }
2091                 if (!ret) {
2092                         if (dump_cmdline)
2093                                 dump_opt_list(td);
2094
2095                         ret = add_job(td, name, 0, 0, type);
2096                 } else {
2097                         log_err("fio: job %s dropped\n", name);
2098                         put_job(td);
2099                 }
2100
2101                 for (i = 0; i < num_opts; i++)
2102                         free(opts[i]);
2103                 num_opts = 0;
2104         } while (!ret);
2105
2106         if (dump_cmdline)
2107                 log_info("\n");
2108
2109         i = 0;
2110         while (i < nr_job_sections) {
2111                 free(job_sections[i]);
2112                 i++;
2113         }
2114
2115         free(opts);
2116 out:
2117         free(string);
2118         if (!nested)
2119                 free(name);
2120         if (!is_buf && f != stdin)
2121                 fclose(f);
2122         return ret;
2123 }
2124
2125 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
2126 {
2127         return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
2128                         0, NULL, NULL, NULL, NULL);
2129 }
2130
2131 static int fill_def_thread(void)
2132 {
2133         memset(&def_thread, 0, sizeof(def_thread));
2134         INIT_FLIST_HEAD(&def_thread.opt_list);
2135
2136         fio_getaffinity(getpid(), &def_thread.o.cpumask);
2137         def_thread.o.error_dump = 1;
2138
2139         /*
2140          * fill default options
2141          */
2142         fio_fill_default_options(&def_thread);
2143         return 0;
2144 }
2145
2146 static void show_debug_categories(void)
2147 {
2148 #ifdef FIO_INC_DEBUG
2149         const struct debug_level *dl = &debug_levels[0];
2150         int curlen, first = 1;
2151
2152         curlen = 0;
2153         while (dl->name) {
2154                 int has_next = (dl + 1)->name != NULL;
2155
2156                 if (first || curlen + strlen(dl->name) >= 80) {
2157                         if (!first) {
2158                                 printf("\n");
2159                                 curlen = 0;
2160                         }
2161                         curlen += printf("\t\t\t%s", dl->name);
2162                         curlen += 3 * (8 - 1);
2163                         if (has_next)
2164                                 curlen += printf(",");
2165                 } else {
2166                         curlen += printf("%s", dl->name);
2167                         if (has_next)
2168                                 curlen += printf(",");
2169                 }
2170                 dl++;
2171                 first = 0;
2172         }
2173         printf("\n");
2174 #endif
2175 }
2176
2177 /*
2178  * Following options aren't printed by usage().
2179  * --append-terse - Equivalent to --output-format=terse, see f6a7df53.
2180  * --latency-log - Deprecated option.
2181  */
2182 static void usage(const char *name)
2183 {
2184         printf("%s\n", fio_version_string);
2185         printf("%s [options] [job options] <job file(s)>\n", name);
2186         printf("  --debug=options\tEnable debug logging. May be one/more of:\n");
2187         show_debug_categories();
2188         printf("  --parse-only\t\tParse options only, don't start any IO\n");
2189         printf("  --merge-blktrace-only\tMerge blktraces only, don't start any IO\n");
2190         printf("  --output\t\tWrite output to file\n");
2191         printf("  --bandwidth-log\tGenerate aggregate bandwidth logs\n");
2192         printf("  --minimal\t\tMinimal (terse) output\n");
2193         printf("  --output-format=type\tOutput format (terse,json,json+,normal)\n");
2194         printf("  --terse-version=type\tSet terse version output format"
2195                 " (default 3, or 2 or 4)\n");
2196         printf("  --version\t\tPrint version info and exit\n");
2197         printf("  --help\t\tPrint this page\n");
2198         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
2199         printf("  --crctest=[type]\tTest speed of checksum functions\n");
2200         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
2201                 " them\n");
2202         printf("  --enghelp=engine\tPrint ioengine help, or list"
2203                 " available ioengines\n");
2204         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
2205                 " cmd\n");
2206         printf("  --showcmd\t\tTurn a job file into command line options\n");
2207         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
2208         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
2209         printf("  --eta-newline=t\tForce a new line for every 't'");
2210         printf(" period passed\n");
2211         printf("  --status-interval=t\tForce full status dump every");
2212         printf(" 't' period passed\n");
2213         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
2214                 " writes\n");
2215         printf("  --section=name\tOnly run specified section in job file,"
2216                 " multiple sections can be specified\n");
2217         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
2218                 " (def 16384)\n");
2219         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
2220         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
2221         printf("  --server=args\t\tStart a backend fio server\n");
2222         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
2223         printf("  --client=hostname\tTalk to remote backend(s) fio server at hostname\n");
2224         printf("  --remote-config=file\tTell fio server to load this local job file\n");
2225         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
2226                 "\t\t\t(option=system,percpu) or run unit work\n"
2227                 "\t\t\tcalibration only (option=calibrate)\n");
2228 #ifdef CONFIG_ZLIB
2229         printf("  --inflate-log=log\tInflate and output compressed log\n");
2230 #endif
2231         printf("  --trigger-file=file\tExecute trigger cmd when file exists\n");
2232         printf("  --trigger-timeout=t\tExecute trigger at this time\n");
2233         printf("  --trigger=cmd\t\tSet this command as local trigger\n");
2234         printf("  --trigger-remote=cmd\tSet this command as remote trigger\n");
2235         printf("  --aux-path=path\tUse this path for fio state generated files\n");
2236         printf("\nFio was written by Jens Axboe <axboe@kernel.dk>\n");
2237 }
2238
2239 #ifdef FIO_INC_DEBUG
2240 const struct debug_level debug_levels[] = {
2241         { .name = "process",
2242           .help = "Process creation/exit logging",
2243           .shift = FD_PROCESS,
2244         },
2245         { .name = "file",
2246           .help = "File related action logging",
2247           .shift = FD_FILE,
2248         },
2249         { .name = "io",
2250           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
2251           .shift = FD_IO,
2252         },
2253         { .name = "mem",
2254           .help = "Memory allocation/freeing logging",
2255           .shift = FD_MEM,
2256         },
2257         { .name = "blktrace",
2258           .help = "blktrace action logging",
2259           .shift = FD_BLKTRACE,
2260         },
2261         { .name = "verify",
2262           .help = "IO verification action logging",
2263           .shift = FD_VERIFY,
2264         },
2265         { .name = "random",
2266           .help = "Random generation logging",
2267           .shift = FD_RANDOM,
2268         },
2269         { .name = "parse",
2270           .help = "Parser logging",
2271           .shift = FD_PARSE,
2272         },
2273         { .name = "diskutil",
2274           .help = "Disk utility logging actions",
2275           .shift = FD_DISKUTIL,
2276         },
2277         { .name = "job",
2278           .help = "Logging related to creating/destroying jobs",
2279           .shift = FD_JOB,
2280         },
2281         { .name = "mutex",
2282           .help = "Mutex logging",
2283           .shift = FD_MUTEX
2284         },
2285         { .name = "profile",
2286           .help = "Logging related to profiles",
2287           .shift = FD_PROFILE,
2288         },
2289         { .name = "time",
2290           .help = "Logging related to time keeping functions",
2291           .shift = FD_TIME,
2292         },
2293         { .name = "net",
2294           .help = "Network logging",
2295           .shift = FD_NET,
2296         },
2297         { .name = "rate",
2298           .help = "Rate logging",
2299           .shift = FD_RATE,
2300         },
2301         { .name = "compress",
2302           .help = "Log compression logging",
2303           .shift = FD_COMPRESS,
2304         },
2305         { .name = "steadystate",
2306           .help = "Steady state detection logging",
2307           .shift = FD_STEADYSTATE,
2308         },
2309         { .name = "helperthread",
2310           .help = "Helper thread logging",
2311           .shift = FD_HELPERTHREAD,
2312         },
2313         { .name = "zbd",
2314           .help = "Zoned Block Device logging",
2315           .shift = FD_ZBD,
2316         },
2317         { .name = NULL, },
2318 };
2319
2320 static int set_debug(const char *string)
2321 {
2322         const struct debug_level *dl;
2323         char *p = (char *) string;
2324         char *opt;
2325         int i;
2326
2327         if (!string)
2328                 return 0;
2329
2330         if (!strcmp(string, "?") || !strcmp(string, "help")) {
2331                 log_info("fio: dumping debug options:");
2332                 for (i = 0; debug_levels[i].name; i++) {
2333                         dl = &debug_levels[i];
2334                         log_info("%s,", dl->name);
2335                 }
2336                 log_info("all\n");
2337                 return 1;
2338         }
2339
2340         while ((opt = strsep(&p, ",")) != NULL) {
2341                 int found = 0;
2342
2343                 if (!strncmp(opt, "all", 3)) {
2344                         log_info("fio: set all debug options\n");
2345                         fio_debug = ~0UL;
2346                         continue;
2347                 }
2348
2349                 for (i = 0; debug_levels[i].name; i++) {
2350                         dl = &debug_levels[i];
2351                         found = !strncmp(opt, dl->name, strlen(dl->name));
2352                         if (!found)
2353                                 continue;
2354
2355                         if (dl->shift == FD_JOB) {
2356                                 opt = strchr(opt, ':');
2357                                 if (!opt) {
2358                                         log_err("fio: missing job number\n");
2359                                         break;
2360                                 }
2361                                 opt++;
2362                                 fio_debug_jobno = atoi(opt);
2363                                 log_info("fio: set debug jobno %d\n",
2364                                                         fio_debug_jobno);
2365                         } else {
2366                                 log_info("fio: set debug option %s\n", opt);
2367                                 fio_debug |= (1UL << dl->shift);
2368                         }
2369                         break;
2370                 }
2371
2372                 if (!found)
2373                         log_err("fio: debug mask %s not found\n", opt);
2374         }
2375         return 0;
2376 }
2377 #else
2378 static int set_debug(const char *string)
2379 {
2380         log_err("fio: debug tracing not included in build\n");
2381         return 1;
2382 }
2383 #endif
2384
2385 static void fio_options_fill_optstring(void)
2386 {
2387         char *ostr = cmd_optstr;
2388         int i, c;
2389
2390         c = i = 0;
2391         while (l_opts[i].name) {
2392                 ostr[c++] = l_opts[i].val;
2393                 if (l_opts[i].has_arg == required_argument)
2394                         ostr[c++] = ':';
2395                 else if (l_opts[i].has_arg == optional_argument) {
2396                         ostr[c++] = ':';
2397                         ostr[c++] = ':';
2398                 }
2399                 i++;
2400         }
2401         ostr[c] = '\0';
2402 }
2403
2404 static int client_flag_set(char c)
2405 {
2406         int i;
2407
2408         i = 0;
2409         while (l_opts[i].name) {
2410                 int val = l_opts[i].val;
2411
2412                 if (c == (val & 0xff))
2413                         return (val & FIO_CLIENT_FLAG);
2414
2415                 i++;
2416         }
2417
2418         return 0;
2419 }
2420
2421 static void parse_cmd_client(void *client, char *opt)
2422 {
2423         fio_client_add_cmd_option(client, opt);
2424 }
2425
2426 static void show_closest_option(const char *name)
2427 {
2428         int best_option, best_distance;
2429         int i, distance;
2430
2431         while (*name == '-')
2432                 name++;
2433
2434         best_option = -1;
2435         best_distance = INT_MAX;
2436         i = 0;
2437         while (l_opts[i].name) {
2438                 distance = string_distance(name, l_opts[i].name);
2439                 if (distance < best_distance) {
2440                         best_distance = distance;
2441                         best_option = i;
2442                 }
2443                 i++;
2444         }
2445
2446         if (best_option != -1 && string_distance_ok(name, best_distance))
2447                 log_err("Did you mean %s?\n", l_opts[best_option].name);
2448 }
2449
2450 static int parse_output_format(const char *optarg)
2451 {
2452         char *p, *orig, *opt;
2453         int ret = 0;
2454
2455         p = orig = strdup(optarg);
2456
2457         output_format = 0;
2458
2459         while ((opt = strsep(&p, ",")) != NULL) {
2460                 if (!strcmp(opt, "minimal") ||
2461                     !strcmp(opt, "terse") ||
2462                     !strcmp(opt, "csv"))
2463                         output_format |= FIO_OUTPUT_TERSE;
2464                 else if (!strcmp(opt, "json"))
2465                         output_format |= FIO_OUTPUT_JSON;
2466                 else if (!strcmp(opt, "json+"))
2467                         output_format |= (FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS);
2468                 else if (!strcmp(opt, "normal"))
2469                         output_format |= FIO_OUTPUT_NORMAL;
2470                 else {
2471                         log_err("fio: invalid output format %s\n", opt);
2472                         ret = 1;
2473                         break;
2474                 }
2475         }
2476
2477         free(orig);
2478         return ret;
2479 }
2480
2481 int parse_cmd_line(int argc, char *argv[], int client_type)
2482 {
2483         struct thread_data *td = NULL;
2484         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
2485         char *ostr = cmd_optstr;
2486         char *pid_file = NULL;
2487         void *cur_client = NULL;
2488         bool backend = false;
2489
2490         /*
2491          * Reset optind handling, since we may call this multiple times
2492          * for the backend.
2493          */
2494         optind = 1;
2495
2496         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
2497                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
2498                         parse_cmd_client(cur_client, argv[optind - 1]);
2499                         c &= ~FIO_CLIENT_FLAG;
2500                 }
2501
2502                 switch (c) {
2503                 case 'a':
2504                         smalloc_pool_size = atoi(optarg);
2505                         smalloc_pool_size <<= 10;
2506                         sinit();
2507                         break;
2508                 case 'l':
2509                         log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
2510                         do_exit++;
2511                         exit_val = 1;
2512                         break;
2513                 case 'b':
2514                         write_bw_log = true;
2515                         break;
2516                 case 'o': {
2517                         FILE *tmp;
2518
2519                         if (f_out && f_out != stdout)
2520                                 fclose(f_out);
2521
2522                         tmp = fopen(optarg, "w+");
2523                         if (!tmp) {
2524                                 log_err("fio: output file open error: %s\n", strerror(errno));
2525                                 exit_val = 1;
2526                                 do_exit++;
2527                                 break;
2528                         }
2529                         f_err = f_out = tmp;
2530                         break;
2531                         }
2532                 case 'm':
2533                         output_format = FIO_OUTPUT_TERSE;
2534                         break;
2535                 case 'F':
2536                         if (parse_output_format(optarg)) {
2537                                 log_err("fio: failed parsing output-format\n");
2538                                 exit_val = 1;
2539                                 do_exit++;
2540                                 break;
2541                         }
2542                         break;
2543                 case 'f':
2544                         output_format |= FIO_OUTPUT_TERSE;
2545                         break;
2546                 case 'h':
2547                         did_arg = true;
2548                         if (!cur_client) {
2549                                 usage(argv[0]);
2550                                 do_exit++;
2551                         }
2552                         break;
2553                 case 'c':
2554                         did_arg = true;
2555                         if (!cur_client) {
2556                                 fio_show_option_help(optarg);
2557                                 do_exit++;
2558                         }
2559                         break;
2560                 case 'i':
2561                         did_arg = true;
2562                         if (!cur_client) {
2563                                 exit_val = fio_show_ioengine_help(optarg);
2564                                 do_exit++;
2565                         }
2566                         break;
2567                 case 's':
2568                         did_arg = true;
2569                         dump_cmdline = true;
2570                         break;
2571                 case 'r':
2572                         read_only = 1;
2573                         break;
2574                 case 'v':
2575                         did_arg = true;
2576                         if (!cur_client) {
2577                                 log_info("%s\n", fio_version_string);
2578                                 do_exit++;
2579                         }
2580                         break;
2581                 case 'V':
2582                         terse_version = atoi(optarg);
2583                         if (!(terse_version >= 2 && terse_version <= 5)) {
2584                                 log_err("fio: bad terse version format\n");
2585                                 exit_val = 1;
2586                                 do_exit++;
2587                         }
2588                         break;
2589                 case 'e':
2590                         if (!strcmp("always", optarg))
2591                                 eta_print = FIO_ETA_ALWAYS;
2592                         else if (!strcmp("never", optarg))
2593                                 eta_print = FIO_ETA_NEVER;
2594                         break;
2595                 case 'E': {
2596                         long long t = 0;
2597
2598                         if (check_str_time(optarg, &t, 1)) {
2599                                 log_err("fio: failed parsing eta time %s\n", optarg);
2600                                 exit_val = 1;
2601                                 do_exit++;
2602                                 break;
2603                         }
2604                         eta_new_line = t / 1000;
2605                         if (!eta_new_line) {
2606                                 log_err("fio: eta new line time too short\n");
2607                                 exit_val = 1;
2608                                 do_exit++;
2609                         }
2610                         break;
2611                         }
2612                 case 'O': {
2613                         long long t = 0;
2614
2615                         if (check_str_time(optarg, &t, 1)) {
2616                                 log_err("fio: failed parsing eta interval %s\n", optarg);
2617                                 exit_val = 1;
2618                                 do_exit++;
2619                                 break;
2620                         }
2621                         eta_interval_msec = t / 1000;
2622                         if (eta_interval_msec < DISK_UTIL_MSEC) {
2623                                 log_err("fio: eta interval time too short (%umsec min)\n", DISK_UTIL_MSEC);
2624                                 exit_val = 1;
2625                                 do_exit++;
2626                         }
2627                         break;
2628                         }
2629                 case 'd':
2630                         if (set_debug(optarg))
2631                                 do_exit++;
2632                         break;
2633                 case 'P':
2634                         did_arg = true;
2635                         parse_only = true;
2636                         break;
2637                 case 'x': {
2638                         size_t new_size;
2639
2640                         if (!strcmp(optarg, "global")) {
2641                                 log_err("fio: can't use global as only "
2642                                         "section\n");
2643                                 do_exit++;
2644                                 exit_val = 1;
2645                                 break;
2646                         }
2647                         new_size = (nr_job_sections + 1) * sizeof(char *);
2648                         job_sections = realloc(job_sections, new_size);
2649                         job_sections[nr_job_sections] = strdup(optarg);
2650                         nr_job_sections++;
2651                         break;
2652                         }
2653 #ifdef CONFIG_ZLIB
2654                 case 'X':
2655                         exit_val = iolog_file_inflate(optarg);
2656                         did_arg = true;
2657                         do_exit++;
2658                         break;
2659 #endif
2660                 case 'p':
2661                         did_arg = true;
2662                         if (exec_profile)
2663                                 free(exec_profile);
2664                         exec_profile = strdup(optarg);
2665                         break;
2666                 case FIO_GETOPT_JOB: {
2667                         const char *opt = l_opts[lidx].name;
2668                         char *val = optarg;
2669
2670                         if (!strncmp(opt, "name", 4) && td) {
2671                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2672                                 if (ret)
2673                                         goto out_free;
2674                                 td = NULL;
2675                                 did_arg = true;
2676                         }
2677                         if (!td) {
2678                                 int is_section = !strncmp(opt, "name", 4);
2679                                 int global = 0;
2680
2681                                 if (!is_section || !strncmp(val, "global", 6))
2682                                         global = 1;
2683
2684                                 if (is_section && skip_this_section(val))
2685                                         continue;
2686
2687                                 td = get_new_job(global, &def_thread, true, NULL);
2688                                 if (!td || ioengine_load(td)) {
2689                                         if (td) {
2690                                                 put_job(td);
2691                                                 td = NULL;
2692                                         }
2693                                         do_exit++;
2694                                         exit_val = 1;
2695                                         break;
2696                                 }
2697                                 fio_options_set_ioengine_opts(l_opts, td);
2698                         }
2699
2700                         if ((!val || !strlen(val)) &&
2701                             l_opts[lidx].has_arg == required_argument) {
2702                                 log_err("fio: option %s requires an argument\n", opt);
2703                                 ret = 1;
2704                         } else
2705                                 ret = fio_cmd_option_parse(td, opt, val);
2706
2707                         if (ret) {
2708                                 if (td) {
2709                                         put_job(td);
2710                                         td = NULL;
2711                                 }
2712                                 do_exit++;
2713                                 exit_val = 1;
2714                         }
2715
2716                         if (!ret && !strcmp(opt, "ioengine")) {
2717                                 if (ioengine_load(td)) {
2718                                         put_job(td);
2719                                         td = NULL;
2720                                         do_exit++;
2721                                         exit_val = 1;
2722                                         break;
2723                                 }
2724                                 fio_options_set_ioengine_opts(l_opts, td);
2725                         }
2726                         break;
2727                 }
2728                 case FIO_GETOPT_IOENGINE: {
2729                         const char *opt = l_opts[lidx].name;
2730                         char *val = optarg;
2731
2732                         if (!td)
2733                                 break;
2734
2735                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
2736                         break;
2737                 }
2738                 case 'w':
2739                         warnings_fatal = 1;
2740                         break;
2741                 case 'j':
2742                         /* we don't track/need this anymore, ignore it */
2743                         break;
2744                 case 'S':
2745                         did_arg = true;
2746 #ifndef CONFIG_NO_SHM
2747                         if (nr_clients) {
2748                                 log_err("fio: can't be both client and server\n");
2749                                 do_exit++;
2750                                 exit_val = 1;
2751                                 break;
2752                         }
2753                         if (optarg)
2754                                 fio_server_set_arg(optarg);
2755                         is_backend = true;
2756                         backend = true;
2757 #else
2758                         log_err("fio: client/server requires SHM support\n");
2759                         do_exit++;
2760                         exit_val = 1;
2761 #endif
2762                         break;
2763                 case 'D':
2764                         if (pid_file)
2765                                 free(pid_file);
2766                         pid_file = strdup(optarg);
2767                         break;
2768                 case 'I':
2769                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
2770                                 /* exit on error and calibration only */
2771                                 did_arg = true;
2772                                 do_exit++;
2773                                 if (ret == -1)
2774                                         exit_val = 1;
2775                         }
2776                         break;
2777                 case 'C':
2778                         did_arg = true;
2779                         if (is_backend) {
2780                                 log_err("fio: can't be both client and server\n");
2781                                 do_exit++;
2782                                 exit_val = 1;
2783                                 break;
2784                         }
2785                         /* if --client parameter contains a pathname */
2786                         if (0 == access(optarg, R_OK)) {
2787                                 /* file contains a list of host addrs or names */
2788                                 char hostaddr[PATH_MAX] = {0};
2789                                 char formatstr[8];
2790                                 FILE * hostf = fopen(optarg, "r");
2791                                 if (!hostf) {
2792                                         log_err("fio: could not open client list file %s for read\n", optarg);
2793                                         do_exit++;
2794                                         exit_val = 1;
2795                                         break;
2796                                 }
2797                                 sprintf(formatstr, "%%%ds", PATH_MAX - 1);
2798                                 /*
2799                                  * read at most PATH_MAX-1 chars from each
2800                                  * record in this file
2801                                  */
2802                                 while (fscanf(hostf, formatstr, hostaddr) == 1) {
2803                                         /* expect EVERY host in file to be valid */
2804                                         if (fio_client_add(&fio_client_ops, hostaddr, &cur_client)) {
2805                                                 log_err("fio: failed adding client %s from file %s\n", hostaddr, optarg);
2806                                                 do_exit++;
2807                                                 exit_val = 1;
2808                                                 break;
2809                                         }
2810                                 }
2811                                 fclose(hostf);
2812                                 break; /* no possibility of job file for "this client only" */
2813                         }
2814                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2815                                 log_err("fio: failed adding client %s\n", optarg);
2816                                 do_exit++;
2817                                 exit_val = 1;
2818                                 break;
2819                         }
2820                         /*
2821                          * If the next argument exists and isn't an option,
2822                          * assume it's a job file for this client only.
2823                          */
2824                         while (optind < argc) {
2825                                 if (!strncmp(argv[optind], "--", 2) ||
2826                                     !strncmp(argv[optind], "-", 1))
2827                                         break;
2828
2829                                 if (fio_client_add_ini_file(cur_client, argv[optind], false))
2830                                         break;
2831                                 optind++;
2832                         }
2833                         break;
2834                 case 'R':
2835                         did_arg = true;
2836                         if (fio_client_add_ini_file(cur_client, optarg, true)) {
2837                                 do_exit++;
2838                                 exit_val = 1;
2839                         }
2840                         break;
2841                 case 'T':
2842                         did_arg = true;
2843                         do_exit++;
2844                         exit_val = fio_monotonic_clocktest(1);
2845                         break;
2846                 case 'G':
2847                         did_arg = true;
2848                         do_exit++;
2849                         exit_val = fio_crctest(optarg);
2850                         break;
2851                 case 'M':
2852                         did_arg = true;
2853                         do_exit++;
2854                         exit_val = fio_memcpy_test(optarg);
2855                         break;
2856                 case 'L': {
2857                         long long val;
2858
2859                         if (check_str_time(optarg, &val, 1)) {
2860                                 log_err("fio: failed parsing time %s\n", optarg);
2861                                 do_exit++;
2862                                 exit_val = 1;
2863                                 break;
2864                         }
2865                         if (val < 1000) {
2866                                 log_err("fio: status interval too small\n");
2867                                 do_exit++;
2868                                 exit_val = 1;
2869                         }
2870                         status_interval = val / 1000;
2871                         break;
2872                         }
2873                 case 'W':
2874                         if (trigger_file)
2875                                 free(trigger_file);
2876                         trigger_file = strdup(optarg);
2877                         break;
2878                 case 'H':
2879                         if (trigger_cmd)
2880                                 free(trigger_cmd);
2881                         trigger_cmd = strdup(optarg);
2882                         break;
2883                 case 'J':
2884                         if (trigger_remote_cmd)
2885                                 free(trigger_remote_cmd);
2886                         trigger_remote_cmd = strdup(optarg);
2887                         break;
2888                 case 'K':
2889                         if (aux_path)
2890                                 free(aux_path);
2891                         aux_path = strdup(optarg);
2892                         break;
2893                 case 'B':
2894                         if (check_str_time(optarg, &trigger_timeout, 1)) {
2895                                 log_err("fio: failed parsing time %s\n", optarg);
2896                                 do_exit++;
2897                                 exit_val = 1;
2898                         }
2899                         trigger_timeout /= 1000000;
2900                         break;
2901
2902                 case 'A':
2903                         did_arg = true;
2904                         merge_blktrace_only = true;
2905                         break;
2906                 case '?':
2907                         log_err("%s: unrecognized option '%s'\n", argv[0],
2908                                                         argv[optind - 1]);
2909                         show_closest_option(argv[optind - 1]);
2910                         fallthrough;
2911                 default:
2912                         do_exit++;
2913                         exit_val = 1;
2914                         break;
2915                 }
2916                 if (do_exit)
2917                         break;
2918         }
2919
2920         if (do_exit && !(is_backend || nr_clients))
2921                 exit(exit_val);
2922
2923         if (nr_clients && fio_clients_connect())
2924                 exit(1);
2925
2926         if (is_backend && backend)
2927                 return fio_start_server(pid_file);
2928         else if (pid_file)
2929                 free(pid_file);
2930
2931         if (td) {
2932                 if (!ret) {
2933                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2934                         if (ret)
2935                                 exit(1);
2936                 }
2937         }
2938
2939         while (!ret && optind < argc) {
2940                 ini_idx++;
2941                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2942                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2943                 optind++;
2944         }
2945
2946 out_free:
2947         return ini_idx;
2948 }
2949
2950 int fio_init_options(void)
2951 {
2952         f_out = stdout;
2953         f_err = stderr;
2954
2955         fio_options_fill_optstring();
2956         fio_options_dup_and_init(l_opts);
2957
2958         atexit(free_shm);
2959
2960         if (fill_def_thread())
2961                 return 1;
2962
2963         return 0;
2964 }
2965
2966 extern int fio_check_options(struct thread_options *);
2967
2968 int parse_options(int argc, char *argv[])
2969 {
2970         const int type = FIO_CLIENT_TYPE_CLI;
2971         int job_files, i;
2972
2973         if (fio_init_options())
2974                 return 1;
2975         if (fio_test_cconv(&def_thread.o))
2976                 log_err("fio: failed internal cconv test\n");
2977
2978         job_files = parse_cmd_line(argc, argv, type);
2979
2980         if (job_files > 0) {
2981                 for (i = 0; i < job_files; i++) {
2982                         if (i && fill_def_thread())
2983                                 return 1;
2984                         if (nr_clients) {
2985                                 if (fio_clients_send_ini(ini_file[i]))
2986                                         return 1;
2987                                 free(ini_file[i]);
2988                         } else if (!is_backend) {
2989                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2990                                         return 1;
2991                                 free(ini_file[i]);
2992                         }
2993                 }
2994         } else if (nr_clients) {
2995                 if (fill_def_thread())
2996                         return 1;
2997                 if (fio_clients_send_ini(NULL))
2998                         return 1;
2999         }
3000
3001         free(ini_file);
3002         fio_options_free(&def_thread);
3003         filesetup_mem_free();
3004
3005         if (!thread_number) {
3006                 if (parse_dryrun())
3007                         return 0;
3008                 if (exec_profile)
3009                         return 0;
3010                 if (is_backend || nr_clients)
3011                         return 0;
3012                 if (did_arg)
3013                         return 0;
3014
3015                 log_err("No job(s) defined\n\n");
3016                 usage(argv[0]);
3017                 return 1;
3018         }
3019
3020         if (output_format & FIO_OUTPUT_NORMAL)
3021                 log_info("%s\n", fio_version_string);
3022
3023         return 0;
3024 }
3025
3026 void options_default_fill(struct thread_options *o)
3027 {
3028         memcpy(o, &def_thread.o, sizeof(*o));
3029 }
3030
3031 struct thread_data *get_global_options(void)
3032 {
3033         return &def_thread;
3034 }