init.c

   1 /*
   2  * This file contains job initialization and setup functions.
   3  */
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6 #include <unistd.h>
   7 #include <ctype.h>
   8 #include <string.h>
   9 #include <errno.h>
  10 #include <sys/ipc.h>
  11 #include <sys/types.h>
  12 #include <dlfcn.h>
  13 #ifdef CONFIG_VALGRIND_DEV
  14 #include <valgrind/drd.h>
  15 #else
  16 #define DRD_IGNORE_VAR(x) do { } while (0)
  17 #endif
  18
  19 #include "fio.h"
  20 #ifndef FIO_NO_HAVE_SHM_H
  21 #include <sys/shm.h>
  22 #endif
  23
  24 #include "parse.h"
  25 #include "smalloc.h"
  26 #include "filehash.h"
  27 #include "verify.h"
  28 #include "profile.h"
  29 #include "server.h"
  30 #include "idletime.h"
  31 #include "filelock.h"
  32 #include "steadystate.h"
  33 #include "blktrace.h"
  34
  35 #include "oslib/asprintf.h"
  36 #include "oslib/getopt.h"
  37 #include "oslib/strcasestr.h"
  38
  39 #include "crc/test.h"
  40 #include "lib/pow2.h"
  41 #include "lib/memcpy.h"
  42
  43 const char fio_version_string[] = FIO_VERSION;
  44
  45 #define FIO_RANDSEED            (0xb1899bedUL)
  46
  47 static char **ini_file;
  48 static int max_jobs = FIO_MAX_JOBS;
  49 static bool dump_cmdline;
  50 static bool parse_only;
  51 static bool merge_blktrace_only;
  52
  53 static struct thread_data def_thread;
  54 struct thread_data *threads = NULL;
  55 static char **job_sections;
  56 static int nr_job_sections;
  57
  58 bool exitall_on_terminate = false;
  59 int output_format = FIO_OUTPUT_NORMAL;
  60 int eta_print = FIO_ETA_AUTO;
  61 unsigned int eta_interval_msec = 1000;
  62 int eta_new_line = 0;
  63 FILE *f_out = NULL;
  64 FILE *f_err = NULL;
  65 char *exec_profile = NULL;
  66 int warnings_fatal = 0;
  67 int terse_version = 3;
  68 bool is_backend = false;
  69 bool is_local_backend = false;
  70 int nr_clients = 0;
  71 bool log_syslog = false;
  72
  73 bool write_bw_log = false;
  74 bool read_only = false;
  75 int status_interval = 0;
  76
  77 char *trigger_file = NULL;
  78 long long trigger_timeout = 0;
  79 char *trigger_cmd = NULL;
  80 char *trigger_remote_cmd = NULL;
  81
  82 char *aux_path = NULL;
  83
  84 static int prev_group_jobs;
  85
  86 unsigned long fio_debug = 0;
  87 unsigned int fio_debug_jobno = -1;
  88 unsigned int *fio_debug_jobp = NULL;
  89 unsigned int *fio_warned = NULL;
  90
  91 static char cmd_optstr[256];
  92 static bool did_arg;
  93
  94 #define FIO_CLIENT_FLAG         (1 << 16)
  95
  96 /*
  97  * Command line options. These will contain the above, plus a few
  98  * extra that only pertain to fio itself and not jobs.
  99  */
 100 static struct option l_opts[FIO_NR_OPTIONS] = {
 101         {
 102                 .name           = (char *) "output",
 103                 .has_arg        = required_argument,
 104                 .val            = 'o' | FIO_CLIENT_FLAG,
 105         },
 106         {
 107                 .name           = (char *) "latency-log",
 108                 .has_arg        = required_argument,
 109                 .val            = 'l' | FIO_CLIENT_FLAG,
 110         },
 111         {
 112                 .name           = (char *) "bandwidth-log",
 113                 .has_arg        = no_argument,
 114                 .val            = 'b' | FIO_CLIENT_FLAG,
 115         },
 116         {
 117                 .name           = (char *) "minimal",
 118                 .has_arg        = no_argument,
 119                 .val            = 'm' | FIO_CLIENT_FLAG,
 120         },
 121         {
 122                 .name           = (char *) "output-format",
 123                 .has_arg        = required_argument,
 124                 .val            = 'F' | FIO_CLIENT_FLAG,
 125         },
 126         {
 127                 .name           = (char *) "append-terse",
 128                 .has_arg        = optional_argument,
 129                 .val            = 'f',
 130         },
 131         {
 132                 .name           = (char *) "version",
 133                 .has_arg        = no_argument,
 134                 .val            = 'v' | FIO_CLIENT_FLAG,
 135         },
 136         {
 137                 .name           = (char *) "help",
 138                 .has_arg        = no_argument,
 139                 .val            = 'h' | FIO_CLIENT_FLAG,
 140         },
 141         {
 142                 .name           = (char *) "cmdhelp",
 143                 .has_arg        = optional_argument,
 144                 .val            = 'c' | FIO_CLIENT_FLAG,
 145         },
 146         {
 147                 .name           = (char *) "enghelp",
 148                 .has_arg        = optional_argument,
 149                 .val            = 'i' | FIO_CLIENT_FLAG,
 150         },
 151         {
 152                 .name           = (char *) "showcmd",
 153                 .has_arg        = no_argument,
 154                 .val            = 's' | FIO_CLIENT_FLAG,
 155         },
 156         {
 157                 .name           = (char *) "readonly",
 158                 .has_arg        = no_argument,
 159                 .val            = 'r' | FIO_CLIENT_FLAG,
 160         },
 161         {
 162                 .name           = (char *) "eta",
 163                 .has_arg        = required_argument,
 164                 .val            = 'e' | FIO_CLIENT_FLAG,
 165         },
 166         {
 167                 .name           = (char *) "eta-interval",
 168                 .has_arg        = required_argument,
 169                 .val            = 'O' | FIO_CLIENT_FLAG,
 170         },
 171         {
 172                 .name           = (char *) "eta-newline",
 173                 .has_arg        = required_argument,
 174                 .val            = 'E' | FIO_CLIENT_FLAG,
 175         },
 176         {
 177                 .name           = (char *) "debug",
 178                 .has_arg        = required_argument,
 179                 .val            = 'd' | FIO_CLIENT_FLAG,
 180         },
 181         {
 182                 .name           = (char *) "parse-only",
 183                 .has_arg        = no_argument,
 184                 .val            = 'P' | FIO_CLIENT_FLAG,
 185         },
 186         {
 187                 .name           = (char *) "section",
 188                 .has_arg        = required_argument,
 189                 .val            = 'x' | FIO_CLIENT_FLAG,
 190         },
 191 #ifdef CONFIG_ZLIB
 192         {
 193                 .name           = (char *) "inflate-log",
 194                 .has_arg        = required_argument,
 195                 .val            = 'X' | FIO_CLIENT_FLAG,
 196         },
 197 #endif
 198         {
 199                 .name           = (char *) "alloc-size",
 200                 .has_arg        = required_argument,
 201                 .val            = 'a' | FIO_CLIENT_FLAG,
 202         },
 203         {
 204                 .name           = (char *) "profile",
 205                 .has_arg        = required_argument,
 206                 .val            = 'p' | FIO_CLIENT_FLAG,
 207         },
 208         {
 209                 .name           = (char *) "warnings-fatal",
 210                 .has_arg        = no_argument,
 211                 .val            = 'w' | FIO_CLIENT_FLAG,
 212         },
 213         {
 214                 .name           = (char *) "max-jobs",
 215                 .has_arg        = required_argument,
 216                 .val            = 'j' | FIO_CLIENT_FLAG,
 217         },
 218         {
 219                 .name           = (char *) "terse-version",
 220                 .has_arg        = required_argument,
 221                 .val            = 'V' | FIO_CLIENT_FLAG,
 222         },
 223         {
 224                 .name           = (char *) "server",
 225                 .has_arg        = optional_argument,
 226                 .val            = 'S',
 227         },
 228         {       .name           = (char *) "daemonize",
 229                 .has_arg        = required_argument,
 230                 .val            = 'D',
 231         },
 232         {
 233                 .name           = (char *) "client",
 234                 .has_arg        = required_argument,
 235                 .val            = 'C',
 236         },
 237         {
 238                 .name           = (char *) "remote-config",
 239                 .has_arg        = required_argument,
 240                 .val            = 'R',
 241         },
 242         {
 243                 .name           = (char *) "cpuclock-test",
 244                 .has_arg        = no_argument,
 245                 .val            = 'T',
 246         },
 247         {
 248                 .name           = (char *) "crctest",
 249                 .has_arg        = optional_argument,
 250                 .val            = 'G',
 251         },
 252         {
 253                 .name           = (char *) "memcpytest",
 254                 .has_arg        = optional_argument,
 255                 .val            = 'M',
 256         },
 257         {
 258                 .name           = (char *) "idle-prof",
 259                 .has_arg        = required_argument,
 260                 .val            = 'I',
 261         },
 262         {
 263                 .name           = (char *) "status-interval",
 264                 .has_arg        = required_argument,
 265                 .val            = 'L' | FIO_CLIENT_FLAG,
 266         },
 267         {
 268                 .name           = (char *) "trigger-file",
 269                 .has_arg        = required_argument,
 270                 .val            = 'W',
 271         },
 272         {
 273                 .name           = (char *) "trigger-timeout",
 274                 .has_arg        = required_argument,
 275                 .val            = 'B',
 276         },
 277         {
 278                 .name           = (char *) "trigger",
 279                 .has_arg        = required_argument,
 280                 .val            = 'H',
 281         },
 282         {
 283                 .name           = (char *) "trigger-remote",
 284                 .has_arg        = required_argument,
 285                 .val            = 'J',
 286         },
 287         {
 288                 .name           = (char *) "aux-path",
 289                 .has_arg        = required_argument,
 290                 .val            = 'K',
 291         },
 292         {
 293                 .name           = (char *) "merge-blktrace-only",
 294                 .has_arg        = no_argument,
 295                 .val            = 'A' | FIO_CLIENT_FLAG,
 296         },
 297         {
 298                 .name           = NULL,
 299         },
 300 };
 301
 302 void free_threads_shm(void)
 303 {
 304         if (threads) {
 305                 void *tp = threads;
 306 #ifndef CONFIG_NO_SHM
 307                 struct shmid_ds sbuf;
 308
 309                 threads = NULL;
 310                 shmdt(tp);
 311                 shmctl(shm_id, IPC_RMID, &sbuf);
 312                 shm_id = -1;
 313 #else
 314                 threads = NULL;
 315                 free(tp);
 316 #endif
 317         }
 318 }
 319
 320 static void free_shm(void)
 321 {
 322         if (threads) {
 323                 flow_exit();
 324                 fio_debug_jobp = NULL;
 325                 fio_warned = NULL;
 326                 free_threads_shm();
 327         }
 328
 329         free(trigger_file);
 330         free(trigger_cmd);
 331         free(trigger_remote_cmd);
 332         trigger_file = trigger_cmd = trigger_remote_cmd = NULL;
 333
 334         options_free(fio_options, &def_thread.o);
 335         fio_filelock_exit();
 336         file_hash_exit();
 337         scleanup();
 338 }
 339
 340 /*
 341  * The thread area is shared between the main process and the job
 342  * threads/processes. So setup a shared memory segment that will hold
 343  * all the job info. We use the end of the region for keeping track of
 344  * open files across jobs, for file sharing.
 345  */
 346 static int setup_thread_area(void)
 347 {
 348         int i;
 349
 350         if (threads)
 351                 return 0;
 352
 353         /*
 354          * 1024 is too much on some machines, scale max_jobs if
 355          * we get a failure that looks like too large a shm segment
 356          */
 357         do {
 358                 size_t size = max_jobs * sizeof(struct thread_data);
 359
 360                 size += 2 * sizeof(unsigned int);
 361
 362 #ifndef CONFIG_NO_SHM
 363                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 364                 if (shm_id != -1)
 365                         break;
 366                 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
 367                         perror("shmget");
 368                         break;
 369                 }
 370 #else
 371                 threads = malloc(size);
 372                 if (threads)
 373                         break;
 374 #endif
 375
 376                 max_jobs >>= 1;
 377         } while (max_jobs);
 378
 379 #ifndef CONFIG_NO_SHM
 380         if (shm_id == -1)
 381                 return 1;
 382
 383         threads = shmat(shm_id, NULL, 0);
 384         if (threads == (void *) -1) {
 385                 perror("shmat");
 386                 return 1;
 387         }
 388         if (shm_attach_to_open_removed())
 389                 shmctl(shm_id, IPC_RMID, NULL);
 390 #endif
 391
 392         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 393         for (i = 0; i < max_jobs; i++)
 394                 DRD_IGNORE_VAR(threads[i]);
 395         fio_debug_jobp = (unsigned int *)(threads + max_jobs);
 396         *fio_debug_jobp = -1;
 397         fio_warned = fio_debug_jobp + 1;
 398         *fio_warned = 0;
 399
 400         flow_init();
 401
 402         return 0;
 403 }
 404
 405 static void dump_print_option(struct print_option *p)
 406 {
 407         const char *delim;
 408
 409         if (!strcmp("description", p->name))
 410                 delim = "\"";
 411         else
 412                 delim = "";
 413
 414         log_info("--%s%s", p->name, p->value ? "" : " ");
 415         if (p->value)
 416                 log_info("=%s%s%s ", delim, p->value, delim);
 417 }
 418
 419 static void dump_opt_list(struct thread_data *td)
 420 {
 421         struct flist_head *entry;
 422         struct print_option *p;
 423
 424         if (flist_empty(&td->opt_list))
 425                 return;
 426
 427         flist_for_each(entry, &td->opt_list) {
 428                 p = flist_entry(entry, struct print_option, list);
 429                 dump_print_option(p);
 430         }
 431 }
 432
 433 static void fio_dump_options_free(struct thread_data *td)
 434 {
 435         while (!flist_empty(&td->opt_list)) {
 436                 struct print_option *p;
 437
 438                 p = flist_first_entry(&td->opt_list, struct print_option, list);
 439                 flist_del_init(&p->list);
 440                 free(p->name);
 441                 free(p->value);
 442                 free(p);
 443         }
 444 }
 445
 446 static void copy_opt_list(struct thread_data *dst, struct thread_data *src)
 447 {
 448         struct flist_head *entry;
 449
 450         if (flist_empty(&src->opt_list))
 451                 return;
 452
 453         flist_for_each(entry, &src->opt_list) {
 454                 struct print_option *srcp, *dstp;
 455
 456                 srcp = flist_entry(entry, struct print_option, list);
 457                 dstp = malloc(sizeof(*dstp));
 458                 dstp->name = strdup(srcp->name);
 459                 if (srcp->value)
 460                         dstp->value = strdup(srcp->value);
 461                 else
 462                         dstp->value = NULL;
 463                 flist_add_tail(&dstp->list, &dst->opt_list);
 464         }
 465 }
 466
 467 /*
 468  * Return a free job structure.
 469  */
 470 static struct thread_data *get_new_job(bool global, struct thread_data *parent,
 471                                        bool preserve_eo, const char *jobname)
 472 {
 473         struct thread_data *td;
 474
 475         if (global)
 476                 return &def_thread;
 477         if (setup_thread_area()) {
 478                 log_err("error: failed to setup shm segment\n");
 479                 return NULL;
 480         }
 481         if (thread_number >= max_jobs) {
 482                 log_err("error: maximum number of jobs (%d) reached.\n",
 483                                 max_jobs);
 484                 return NULL;
 485         }
 486
 487         td = &threads[thread_number++];
 488         *td = *parent;
 489
 490         INIT_FLIST_HEAD(&td->opt_list);
 491         if (parent != &def_thread)
 492                 copy_opt_list(td, parent);
 493
 494         td->io_ops = NULL;
 495         td->io_ops_init = 0;
 496         if (!preserve_eo)
 497                 td->eo = NULL;
 498
 499         td->o.uid = td->o.gid = -1U;
 500
 501         dup_files(td, parent);
 502         fio_options_mem_dupe(td);
 503
 504         profile_add_hooks(td);
 505
 506         td->thread_number = thread_number;
 507         td->subjob_number = 0;
 508
 509         if (jobname)
 510                 td->o.name = strdup(jobname);
 511
 512         if (!parent->o.group_reporting || parent == &def_thread)
 513                 stat_number++;
 514
 515         return td;
 516 }
 517
 518 static void put_job(struct thread_data *td)
 519 {
 520         if (td == &def_thread)
 521                 return;
 522
 523         profile_td_exit(td);
 524         flow_exit_job(td);
 525
 526         if (td->error)
 527                 log_info("fio: %s\n", td->verror);
 528
 529         fio_options_free(td);
 530         fio_dump_options_free(td);
 531         if (td->io_ops)
 532                 free_ioengine(td);
 533
 534         if (td->o.name)
 535                 free(td->o.name);
 536
 537         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 538         thread_number--;
 539 }
 540
 541 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 542 {
 543         unsigned long long bs = td->o.min_bs[ddir];
 544
 545         assert(ddir_rw(ddir));
 546
 547         if (td->o.rate[ddir])
 548                 td->rate_bps[ddir] = td->o.rate[ddir];
 549         else
 550                 td->rate_bps[ddir] = (uint64_t) td->o.rate_iops[ddir] * bs;
 551
 552         if (!td->rate_bps[ddir]) {
 553                 log_err("rate lower than supported\n");
 554                 return -1;
 555         }
 556
 557         td->rate_next_io_time[ddir] = 0;
 558         td->rate_io_issue_bytes[ddir] = 0;
 559         td->last_usec[ddir] = 0;
 560         return 0;
 561 }
 562
 563 static int setup_rate(struct thread_data *td)
 564 {
 565         int ret = 0;
 566
 567         for_each_rw_ddir(ddir) {
 568                 if (td->o.rate[ddir] || td->o.rate_iops[ddir]) {
 569                         ret |= __setup_rate(td, ddir);
 570                 }
 571         }
 572         return ret;
 573 }
 574
 575 static int fixed_block_size(struct thread_options *o)
 576 {
 577         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 578                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 579                 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
 580                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
 581                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
 582 }
 583
 584 /*
 585  * <3 Johannes
 586  */
 587 static unsigned int gcd(unsigned int m, unsigned int n)
 588 {
 589         if (!n)
 590                 return m;
 591
 592         return gcd(n, m % n);
 593 }
 594
 595 /*
 596  * Lazy way of fixing up options that depend on each other. We could also
 597  * define option callback handlers, but this is easier.
 598  */
 599 static int fixup_options(struct thread_data *td)
 600 {
 601         struct thread_options *o = &td->o;
 602         int ret = 0;
 603
 604         if (read_only && (td_write(td) || td_trim(td))) {
 605                 log_err("fio: trim and write operations are not allowed"
 606                          " with the --readonly parameter.\n");
 607                 ret |= 1;
 608         }
 609
 610 #ifndef CONFIG_PSHARED
 611         if (!o->use_thread) {
 612                 log_info("fio: this platform does not support process shared"
 613                          " mutexes, forcing use of threads. Use the 'thread'"
 614                          " option to get rid of this warning.\n");
 615                 o->use_thread = 1;
 616                 ret |= warnings_fatal;
 617         }
 618 #endif
 619
 620         if (o->write_iolog_file && o->read_iolog_file) {
 621                 log_err("fio: read iolog overrides write_iolog\n");
 622                 free(o->write_iolog_file);
 623                 o->write_iolog_file = NULL;
 624                 ret |= warnings_fatal;
 625         }
 626
 627         if (o->zone_mode == ZONE_MODE_NONE && o->zone_size) {
 628                 log_err("fio: --zonemode=none and --zonesize are not compatible.\n");
 629                 ret |= 1;
 630         }
 631
 632         if (o->zone_mode == ZONE_MODE_STRIDED && !o->zone_size) {
 633                 log_err("fio: --zonesize must be specified when using --zonemode=strided.\n");
 634                 ret |= 1;
 635         }
 636
 637         if (o->zone_mode == ZONE_MODE_NOT_SPECIFIED) {
 638                 if (o->zone_size)
 639                         o->zone_mode = ZONE_MODE_STRIDED;
 640                 else
 641                         o->zone_mode = ZONE_MODE_NONE;
 642         }
 643
 644         /*
 645          * Strided zone mode only really works with 1 file.
 646          */
 647         if (o->zone_mode == ZONE_MODE_STRIDED && o->open_files > 1)
 648                 o->zone_mode = ZONE_MODE_NONE;
 649
 650         /*
 651          * If zone_range isn't specified, backward compatibility dictates it
 652          * should be made equal to zone_size.
 653          */
 654         if (o->zone_mode == ZONE_MODE_STRIDED && !o->zone_range)
 655                 o->zone_range = o->zone_size;
 656
 657         /*
 658          * Reads can do overwrites, we always need to pre-create the file
 659          */
 660         if (td_read(td))
 661                 o->overwrite = 1;
 662
 663         for_each_rw_ddir(ddir) {
 664                 if (!o->min_bs[ddir])
 665                         o->min_bs[ddir] = o->bs[ddir];
 666                 if (!o->max_bs[ddir])
 667                         o->max_bs[ddir] = o->bs[ddir];
 668         }
 669
 670         o->rw_min_bs = -1;
 671         for_each_rw_ddir(ddir) {
 672                 o->rw_min_bs = min(o->rw_min_bs, o->min_bs[ddir]);
 673         }
 674
 675         /*
 676          * For random IO, allow blockalign offset other than min_bs.
 677          */
 678         for_each_rw_ddir(ddir) {
 679                 if (!o->ba[ddir] || !td_random(td))
 680                         o->ba[ddir] = o->min_bs[ddir];
 681         }
 682
 683         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 684             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
 685             o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
 686             !o->norandommap) {
 687                 log_err("fio: Any use of blockalign= turns off randommap\n");
 688                 o->norandommap = 1;
 689                 ret |= warnings_fatal;
 690         }
 691
 692         if (!o->file_size_high)
 693                 o->file_size_high = o->file_size_low;
 694
 695         if (o->start_delay_high) {
 696                 if (!o->start_delay_orig)
 697                         o->start_delay_orig = o->start_delay;
 698                 o->start_delay = rand_between(&td->delay_state,
 699                                                 o->start_delay_orig,
 700                                                 o->start_delay_high);
 701         }
 702
 703         if (o->norandommap && o->verify != VERIFY_NONE
 704             && !fixed_block_size(o))  {
 705                 log_err("fio: norandommap given for variable block sizes, "
 706                         "verify limited\n");
 707                 ret |= warnings_fatal;
 708         }
 709         if (o->bs_unaligned && (o->odirect || td_ioengine_flagged(td, FIO_RAWIO)))
 710                 log_err("fio: bs_unaligned may not work with raw io\n");
 711
 712         /*
 713          * thinktime_spin must be less than thinktime
 714          */
 715         if (o->thinktime_spin > o->thinktime)
 716                 o->thinktime_spin = o->thinktime;
 717
 718         /*
 719          * The low water mark cannot be bigger than the iodepth
 720          */
 721         if (o->iodepth_low > o->iodepth || !o->iodepth_low)
 722                 o->iodepth_low = o->iodepth;
 723
 724         /*
 725          * If batch number isn't set, default to the same as iodepth
 726          */
 727         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 728                 o->iodepth_batch = o->iodepth;
 729
 730         /*
 731          * If max batch complete number isn't set or set incorrectly,
 732          * default to the same as iodepth_batch_complete_min
 733          */
 734         if (o->iodepth_batch_complete_min > o->iodepth_batch_complete_max)
 735                 o->iodepth_batch_complete_max = o->iodepth_batch_complete_min;
 736
 737         /*
 738          * There's no need to check for in-flight overlapping IOs if the job
 739          * isn't changing data or the maximum iodepth is guaranteed to be 1
 740          * when we are not in offload mode
 741          */
 742         if (o->serialize_overlap && !(td->flags & TD_F_READ_IOLOG) &&
 743             (!(td_write(td) || td_trim(td)) || o->iodepth == 1) &&
 744             o->io_submit_mode != IO_MODE_OFFLOAD)
 745                 o->serialize_overlap = 0;
 746
 747         if (o->nr_files > td->files_index)
 748                 o->nr_files = td->files_index;
 749
 750         if (o->open_files > o->nr_files || !o->open_files)
 751                 o->open_files = o->nr_files;
 752
 753         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
 754             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
 755             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 756             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 757                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 758                 ret |= 1;
 759         }
 760         for_each_rw_ddir(ddir) {
 761                 if ((o->rate[ddir] && (o->rate[ddir] < o->ratemin[ddir])) ||
 762                     (o->rate_iops[ddir] && (o->rate_iops[ddir] < o->rate_iops_min[ddir]))) {
 763                         log_err("fio: minimum rate exceeds rate, ddir %d\n", +ddir);
 764                         ret |= 1;
 765                 }
 766         }
 767
 768         if (!o->timeout && o->time_based) {
 769                 log_err("fio: time_based requires a runtime/timeout setting\n");
 770                 o->time_based = 0;
 771                 ret |= warnings_fatal;
 772         }
 773
 774         if (o->fill_device && !o->size)
 775                 o->size = -1ULL;
 776
 777         if (o->verify != VERIFY_NONE) {
 778                 if (td_write(td) && o->do_verify && o->numjobs > 1 &&
 779                     (o->filename ||
 780                      !(o->unique_filename &&
 781                        strstr(o->filename_format, "$jobname") &&
 782                        strstr(o->filename_format, "$jobnum") &&
 783                        strstr(o->filename_format, "$filenum")))) {
 784                         log_info("fio: multiple writers may overwrite blocks "
 785                                 "that belong to other jobs. This can cause "
 786                                 "verification failures.\n");
 787                         ret |= warnings_fatal;
 788                 }
 789
 790                 /*
 791                  * Warn if verification is requested but no verification of any
 792                  * kind can be started due to time constraints
 793                  */
 794                 if (td_write(td) && o->do_verify && o->timeout &&
 795                     o->time_based && !td_read(td) && !o->verify_backlog) {
 796                         log_info("fio: verification read phase will never "
 797                                  "start because write phase uses all of "
 798                                  "runtime\n");
 799                         ret |= warnings_fatal;
 800                 }
 801
 802                 if (!fio_option_is_set(o, refill_buffers))
 803                         o->refill_buffers = 1;
 804
 805                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 806                     !o->verify_interval)
 807                         o->verify_interval = o->min_bs[DDIR_WRITE];
 808
 809                 /*
 810                  * Verify interval must be smaller or equal to the
 811                  * write size.
 812                  */
 813                 if (o->verify_interval > o->min_bs[DDIR_WRITE])
 814                         o->verify_interval = o->min_bs[DDIR_WRITE];
 815                 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
 816                         o->verify_interval = o->min_bs[DDIR_READ];
 817
 818                 /*
 819                  * Verify interval must be a factor of both min and max
 820                  * write size
 821                  */
 822                 if (!o->verify_interval ||
 823                     (o->min_bs[DDIR_WRITE] % o->verify_interval) ||
 824                     (o->max_bs[DDIR_WRITE] % o->verify_interval))
 825                         o->verify_interval = gcd(o->min_bs[DDIR_WRITE],
 826                                                         o->max_bs[DDIR_WRITE]);
 827         }
 828
 829         if (o->pre_read) {
 830                 if (o->invalidate_cache)
 831                         o->invalidate_cache = 0;
 832                 if (td_ioengine_flagged(td, FIO_PIPEIO)) {
 833                         log_info("fio: cannot pre-read files with an IO engine"
 834                                  " that isn't seekable. Pre-read disabled.\n");
 835                         ret |= warnings_fatal;
 836                 }
 837         }
 838
 839         if (o->unit_base == N2S_NONE) {
 840                 if (td_ioengine_flagged(td, FIO_BIT_BASED))
 841                         o->unit_base = N2S_BITPERSEC;
 842                 else
 843                         o->unit_base = N2S_BYTEPERSEC;
 844         }
 845
 846 #ifndef CONFIG_FDATASYNC
 847         if (o->fdatasync_blocks) {
 848                 log_info("fio: this platform does not support fdatasync()"
 849                          " falling back to using fsync().  Use the 'fsync'"
 850                          " option instead of 'fdatasync' to get rid of"
 851                          " this warning\n");
 852                 o->fsync_blocks = o->fdatasync_blocks;
 853                 o->fdatasync_blocks = 0;
 854                 ret |= warnings_fatal;
 855         }
 856 #endif
 857
 858 #ifdef WIN32
 859         /*
 860          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 861          * so fail if we're passed those flags
 862          */
 863         if (td_ioengine_flagged(td, FIO_SYNCIO) && (o->odirect || o->sync_io)) {
 864                 log_err("fio: Windows does not support direct or non-buffered io with"
 865                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 866                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 867                 ret |= 1;
 868         }
 869 #endif
 870
 871         /*
 872          * For fully compressible data, just zero them at init time.
 873          * It's faster than repeatedly filling it. For non-zero
 874          * compression, we should have refill_buffers set. Set it, unless
 875          * the job file already changed it.
 876          */
 877         if (o->compress_percentage) {
 878                 if (o->compress_percentage == 100) {
 879                         o->zero_buffers = 1;
 880                         o->compress_percentage = 0;
 881                 } else if (!fio_option_is_set(o, refill_buffers)) {
 882                         o->refill_buffers = 1;
 883                         td->flags |= TD_F_REFILL_BUFFERS;
 884                 }
 885         }
 886
 887         /*
 888          * Using a non-uniform random distribution excludes usage of
 889          * a random map
 890          */
 891         if (o->random_distribution != FIO_RAND_DIST_RANDOM)
 892                 o->norandommap = 1;
 893
 894         /*
 895          * If size is set but less than the min block size, complain
 896          */
 897         if (o->size && o->size < td_min_bs(td)) {
 898                 log_err("fio: size too small, must not be less than minimum block size: %llu < %llu\n",
 899                         (unsigned long long) o->size, td_min_bs(td));
 900                 ret |= 1;
 901         }
 902
 903         /*
 904          * O_ATOMIC implies O_DIRECT
 905          */
 906         if (o->oatomic)
 907                 o->odirect = 1;
 908
 909         /*
 910          * If randseed is set, that overrides randrepeat
 911          */
 912         if (fio_option_is_set(o, rand_seed))
 913                 o->rand_repeatable = 0;
 914
 915         if (td_ioengine_flagged(td, FIO_NOEXTEND) && o->file_append) {
 916                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
 917                 ret |= 1;
 918         }
 919
 920         if (fio_option_is_set(o, gtod_cpu)) {
 921                 fio_gtod_init();
 922                 fio_gtod_set_cpu(o->gtod_cpu);
 923                 fio_gtod_offload = 1;
 924         }
 925
 926         td->loops = o->loops;
 927         if (!td->loops)
 928                 td->loops = 1;
 929
 930         if (o->block_error_hist && o->nr_files != 1) {
 931                 log_err("fio: block error histogram only available "
 932                         "with a single file per job, but %d files "
 933                         "provided\n", o->nr_files);
 934                 ret |= 1;
 935         }
 936
 937         if (o->disable_lat)
 938                 o->lat_percentiles = 0;
 939         if (o->disable_clat)
 940                 o->clat_percentiles = 0;
 941         if (o->disable_slat)
 942                 o->slat_percentiles = 0;
 943
 944         /*
 945          * Fix these up to be nsec internally
 946          */
 947         o->max_latency *= 1000ULL;
 948         o->latency_target *= 1000ULL;
 949
 950         return ret;
 951 }
 952
 953 static void init_rand_file_service(struct thread_data *td)
 954 {
 955         unsigned long nranges = td->o.nr_files << FIO_FSERVICE_SHIFT;
 956         const unsigned int seed = td->rand_seeds[FIO_RAND_FILE_OFF];
 957
 958         if (td->o.file_service_type == FIO_FSERVICE_ZIPF) {
 959                 zipf_init(&td->next_file_zipf, nranges, td->zipf_theta, seed);
 960                 zipf_disable_hash(&td->next_file_zipf);
 961         } else if (td->o.file_service_type == FIO_FSERVICE_PARETO) {
 962                 pareto_init(&td->next_file_zipf, nranges, td->pareto_h, seed);
 963                 zipf_disable_hash(&td->next_file_zipf);
 964         } else if (td->o.file_service_type == FIO_FSERVICE_GAUSS) {
 965                 gauss_init(&td->next_file_gauss, nranges, td->gauss_dev, seed);
 966                 gauss_disable_hash(&td->next_file_gauss);
 967         }
 968 }
 969
 970 void td_fill_verify_state_seed(struct thread_data *td)
 971 {
 972         bool use64;
 973
 974         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
 975                 use64 = true;
 976         else
 977                 use64 = false;
 978
 979         init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF],
 980                 use64);
 981 }
 982
 983 static void td_fill_rand_seeds_internal(struct thread_data *td, bool use64)
 984 {
 985         uint64_t read_seed = td->rand_seeds[FIO_RAND_BS_OFF];
 986         uint64_t write_seed = td->rand_seeds[FIO_RAND_BS1_OFF];
 987         uint64_t trim_seed = td->rand_seeds[FIO_RAND_BS2_OFF];
 988         int i;
 989
 990         /*
 991          * trimwrite is special in that we need to generate the same
 992          * offsets to get the "write after trim" effect. If we are
 993          * using bssplit to set buffer length distributions, ensure that
 994          * we seed the trim and write generators identically. Ditto for
 995          * verify, read and writes must have the same seed, if we are doing
 996          * read verify.
 997          */
 998         if (td->o.verify != VERIFY_NONE)
 999                 write_seed = read_seed;
1000         if (td_trimwrite(td))
1001                 trim_seed = write_seed;
1002         init_rand_seed(&td->bsrange_state[DDIR_READ], read_seed, use64);
1003         init_rand_seed(&td->bsrange_state[DDIR_WRITE], write_seed, use64);
1004         init_rand_seed(&td->bsrange_state[DDIR_TRIM], trim_seed, use64);
1005
1006         td_fill_verify_state_seed(td);
1007         init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], false);
1008
1009         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
1010                 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF], use64);
1011         else if (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM)
1012                 init_rand_file_service(td);
1013
1014         init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], use64);
1015         init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF], use64);
1016         init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY], use64);
1017         init_rand_seed(&td->poisson_state[0], td->rand_seeds[FIO_RAND_POISSON_OFF], 0);
1018         init_rand_seed(&td->poisson_state[1], td->rand_seeds[FIO_RAND_POISSON2_OFF], 0);
1019         init_rand_seed(&td->poisson_state[2], td->rand_seeds[FIO_RAND_POISSON3_OFF], 0);
1020         init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF], false);
1021         init_rand_seed(&td->zone_state, td->rand_seeds[FIO_RAND_ZONE_OFF], false);
1022         init_rand_seed(&td->prio_state, td->rand_seeds[FIO_RAND_PRIO_CMDS], false);
1023
1024         if (!td_random(td))
1025                 return;
1026
1027         if (td->o.rand_repeatable)
1028                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
1029
1030         init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF], use64);
1031
1032         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1033                 struct frand_state *s = &td->seq_rand_state[i];
1034
1035                 init_rand_seed(s, td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], false);
1036         }
1037 }
1038
1039 void td_fill_rand_seeds(struct thread_data *td)
1040 {
1041         bool use64;
1042
1043         if (td->o.allrand_repeatable) {
1044                 unsigned int i;
1045
1046                 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
1047                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
1048                                 + i;
1049         }
1050
1051         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
1052                 use64 = true;
1053         else
1054                 use64 = false;
1055
1056         td_fill_rand_seeds_internal(td, use64);
1057
1058         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF], use64);
1059         frand_copy(&td->buf_state_prev, &td->buf_state);
1060 }
1061
1062 /*
1063  * Initializes the ioengine configured for a job, if it has not been done so
1064  * already.
1065  */
1066 int ioengine_load(struct thread_data *td)
1067 {
1068         if (!td->o.ioengine) {
1069                 log_err("fio: internal fault, no IO engine specified\n");
1070                 return 1;
1071         }
1072
1073         if (td->io_ops) {
1074                 struct ioengine_ops *ops;
1075                 void *dlhandle;
1076
1077                 /* An engine is loaded, but the requested ioengine
1078                  * may have changed.
1079                  */
1080                 if (!strcmp(td->io_ops->name, td->o.ioengine)) {
1081                         /* The right engine is already loaded */
1082                         return 0;
1083                 }
1084
1085                 /*
1086                  * Name of file and engine may be different, load ops
1087                  * for this name and see if they match. If they do, then
1088                  * the engine is unchanged.
1089                  */
1090                 dlhandle = td->io_ops_dlhandle;
1091                 ops = load_ioengine(td);
1092                 if (!ops)
1093                         goto fail;
1094
1095                 if (ops == td->io_ops && dlhandle == td->io_ops_dlhandle) {
1096                         if (dlhandle)
1097                                 dlclose(dlhandle);
1098                         return 0;
1099                 }
1100
1101                 if (dlhandle && dlhandle != td->io_ops_dlhandle)
1102                         dlclose(dlhandle);
1103
1104                 /* Unload the old engine. */
1105                 free_ioengine(td);
1106         }
1107
1108         td->io_ops = load_ioengine(td);
1109         if (!td->io_ops)
1110                 goto fail;
1111
1112         if (td->io_ops->option_struct_size && td->io_ops->options) {
1113                 /*
1114                  * In cases where td->eo is set, clone it for a child thread.
1115                  * This requires that the parent thread has the same ioengine,
1116                  * but that requirement must be enforced by the code which
1117                  * cloned the thread.
1118                  */
1119                 void *origeo = td->eo;
1120                 /*
1121                  * Otherwise use the default thread options.
1122                  */
1123                 if (!origeo && td != &def_thread && def_thread.eo &&
1124                     def_thread.io_ops->options == td->io_ops->options)
1125                         origeo = def_thread.eo;
1126
1127                 options_init(td->io_ops->options);
1128                 td->eo = malloc(td->io_ops->option_struct_size);
1129                 /*
1130                  * Use the default thread as an option template if this uses the
1131                  * same options structure and there are non-default options
1132                  * used.
1133                  */
1134                 if (origeo) {
1135                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
1136                         options_mem_dupe(td->io_ops->options, td->eo);
1137                 } else {
1138                         memset(td->eo, 0, td->io_ops->option_struct_size);
1139                         fill_default_options(td->eo, td->io_ops->options);
1140                 }
1141                 *(struct thread_data **)td->eo = td;
1142         }
1143
1144         if (td->o.odirect)
1145                 td->io_ops->flags |= FIO_RAWIO;
1146
1147         td_set_ioengine_flags(td);
1148         return 0;
1149
1150 fail:
1151         log_err("fio: failed to load engine\n");
1152         return 1;
1153
1154 }
1155
1156 static void init_flags(struct thread_data *td)
1157 {
1158         struct thread_options *o = &td->o;
1159         int i;
1160
1161         if (o->verify_backlog)
1162                 td->flags |= TD_F_VER_BACKLOG;
1163         if (o->trim_backlog)
1164                 td->flags |= TD_F_TRIM_BACKLOG;
1165         if (o->read_iolog_file)
1166                 td->flags |= TD_F_READ_IOLOG;
1167         if (o->refill_buffers)
1168                 td->flags |= TD_F_REFILL_BUFFERS;
1169         /*
1170          * Always scramble buffers if asked to
1171          */
1172         if (o->scramble_buffers && fio_option_is_set(o, scramble_buffers))
1173                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1174         /*
1175          * But also scramble buffers, unless we were explicitly asked
1176          * to zero them.
1177          */
1178         if (o->scramble_buffers && !(o->zero_buffers &&
1179             fio_option_is_set(o, zero_buffers)))
1180                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1181         if (o->verify != VERIFY_NONE)
1182                 td->flags |= TD_F_DO_VERIFY;
1183
1184         if (o->verify_async || o->io_submit_mode == IO_MODE_OFFLOAD)
1185                 td->flags |= TD_F_NEED_LOCK;
1186
1187         if (o->mem_type == MEM_CUDA_MALLOC)
1188                 td->flags &= ~TD_F_SCRAMBLE_BUFFERS;
1189
1190         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1191                 if (option_check_rate(td, i)) {
1192                         td->flags |= TD_F_CHECK_RATE;
1193                         break;
1194                 }
1195         }
1196 }
1197
1198 static int setup_random_seeds(struct thread_data *td)
1199 {
1200         uint64_t seed;
1201         unsigned int i;
1202
1203         if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed)) {
1204                 int ret = init_random_seeds(td->rand_seeds, sizeof(td->rand_seeds));
1205                 if (!ret)
1206                         td_fill_rand_seeds(td);
1207                 return ret;
1208         }
1209
1210         seed = td->o.rand_seed;
1211         for (i = 0; i < 4; i++)
1212                 seed *= 0x9e370001UL;
1213
1214         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
1215                 td->rand_seeds[i] = seed * td->thread_number + i;
1216                 seed *= 0x9e370001UL;
1217         }
1218
1219         td_fill_rand_seeds(td);
1220         return 0;
1221 }
1222
1223 enum {
1224         FPRE_NONE = 0,
1225         FPRE_JOBNAME,
1226         FPRE_JOBNUM,
1227         FPRE_FILENUM
1228 };
1229
1230 static struct fpre_keyword {
1231         const char *keyword;
1232         size_t strlen;
1233         int key;
1234 } fpre_keywords[] = {
1235         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
1236         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
1237         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
1238         { .keyword = NULL, },
1239         };
1240
1241 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
1242                            const char *jobname, int jobnum, int filenum)
1243 {
1244         struct fpre_keyword *f;
1245         char copy[PATH_MAX];
1246         size_t dst_left = PATH_MAX - 1;
1247
1248         if (!o->filename_format || !strlen(o->filename_format)) {
1249                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
1250                 return buf;
1251         }
1252
1253         for (f = &fpre_keywords[0]; f->keyword; f++)
1254                 f->strlen = strlen(f->keyword);
1255
1256         snprintf(buf, buf_size, "%s", o->filename_format);
1257
1258         memset(copy, 0, sizeof(copy));
1259         for (f = &fpre_keywords[0]; f->keyword; f++) {
1260                 do {
1261                         size_t pre_len, post_start = 0;
1262                         char *str, *dst = copy;
1263
1264                         str = strcasestr(buf, f->keyword);
1265                         if (!str)
1266                                 break;
1267
1268                         pre_len = str - buf;
1269                         if (strlen(str) != f->strlen)
1270                                 post_start = pre_len + f->strlen;
1271
1272                         if (pre_len) {
1273                                 strncpy(dst, buf, pre_len);
1274                                 dst += pre_len;
1275                                 dst_left -= pre_len;
1276                         }
1277
1278                         switch (f->key) {
1279                         case FPRE_JOBNAME: {
1280                                 int ret;
1281
1282                                 ret = snprintf(dst, dst_left, "%s", jobname);
1283                                 if (ret < 0)
1284                                         break;
1285                                 else if (ret > dst_left) {
1286                                         log_err("fio: truncated filename\n");
1287                                         dst += dst_left;
1288                                         dst_left = 0;
1289                                 } else {
1290                                         dst += ret;
1291                                         dst_left -= ret;
1292                                 }
1293                                 break;
1294                                 }
1295                         case FPRE_JOBNUM: {
1296                                 int ret;
1297
1298                                 ret = snprintf(dst, dst_left, "%d", jobnum);
1299                                 if (ret < 0)
1300                                         break;
1301                                 else if (ret > dst_left) {
1302                                         log_err("fio: truncated filename\n");
1303                                         dst += dst_left;
1304                                         dst_left = 0;
1305                                 } else {
1306                                         dst += ret;
1307                                         dst_left -= ret;
1308                                 }
1309                                 break;
1310                                 }
1311                         case FPRE_FILENUM: {
1312                                 int ret;
1313
1314                                 ret = snprintf(dst, dst_left, "%d", filenum);
1315                                 if (ret < 0)
1316                                         break;
1317                                 else if (ret > dst_left) {
1318                                         log_err("fio: truncated filename\n");
1319                                         dst += dst_left;
1320                                         dst_left = 0;
1321                                 } else {
1322                                         dst += ret;
1323                                         dst_left -= ret;
1324                                 }
1325                                 break;
1326                                 }
1327                         default:
1328                                 assert(0);
1329                                 break;
1330                         }
1331
1332                         if (post_start)
1333                                 strncpy(dst, buf + post_start, dst_left);
1334
1335                         snprintf(buf, buf_size, "%s", copy);
1336                 } while (1);
1337         }
1338
1339         return buf;
1340 }
1341
1342 bool parse_dryrun(void)
1343 {
1344         return dump_cmdline || parse_only;
1345 }
1346
1347 static void gen_log_name(char *name, size_t size, const char *logtype,
1348                          const char *logname, unsigned int num,
1349                          const char *suf, int per_job)
1350 {
1351         if (per_job)
1352                 snprintf(name, size, "%s_%s.%d.%s", logname, logtype, num, suf);
1353         else
1354                 snprintf(name, size, "%s_%s.%s", logname, logtype, suf);
1355 }
1356
1357 static int check_waitees(char *waitee)
1358 {
1359         struct thread_data *td;
1360         int i, ret = 0;
1361
1362         for_each_td(td, i) {
1363                 if (td->subjob_number)
1364                         continue;
1365
1366                 ret += !strcmp(td->o.name, waitee);
1367         }
1368
1369         return ret;
1370 }
1371
1372 static bool wait_for_ok(const char *jobname, struct thread_options *o)
1373 {
1374         int nw;
1375
1376         if (!o->wait_for)
1377                 return true;
1378
1379         if (!strcmp(jobname, o->wait_for)) {
1380                 log_err("%s: a job cannot wait for itself (wait_for=%s).\n",
1381                                 jobname, o->wait_for);
1382                 return false;
1383         }
1384
1385         if (!(nw = check_waitees(o->wait_for))) {
1386                 log_err("%s: waitee job %s unknown.\n", jobname, o->wait_for);
1387                 return false;
1388         }
1389
1390         if (nw > 1) {
1391                 log_err("%s: multiple waitees %s found,\n"
1392                         "please avoid duplicates when using wait_for option.\n",
1393                                 jobname, o->wait_for);
1394                 return false;
1395         }
1396
1397         return true;
1398 }
1399
1400 /*
1401  * Treat an empty log file name the same as a one not given
1402  */
1403 static const char *make_log_name(const char *logname, const char *jobname)
1404 {
1405         if (logname && strcmp(logname, ""))
1406                 return logname;
1407
1408         return jobname;
1409 }
1410
1411 /*
1412  * Adds a job to the list of things todo. Sanitizes the various options
1413  * to make sure we don't have conflicts, and initializes various
1414  * members of td.
1415  */
1416 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1417                    int recursed, int client_type)
1418 {
1419         unsigned int i;
1420         char fname[PATH_MAX + 1];
1421         int numjobs, file_alloced;
1422         struct thread_options *o = &td->o;
1423         char logname[PATH_MAX + 32];
1424
1425         /*
1426          * the def_thread is just for options, it's not a real job
1427          */
1428         if (td == &def_thread)
1429                 return 0;
1430
1431         init_flags(td);
1432
1433         /*
1434          * if we are just dumping the output command line, don't add the job
1435          */
1436         if (parse_dryrun()) {
1437                 put_job(td);
1438                 return 0;
1439         }
1440
1441         td->client_type = client_type;
1442
1443         if (profile_td_init(td))
1444                 goto err;
1445
1446         if (ioengine_load(td))
1447                 goto err;
1448
1449         file_alloced = 0;
1450         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1451                 file_alloced = 1;
1452
1453                 if (o->nr_files == 1 && exists_and_not_regfile(jobname))
1454                         add_file(td, jobname, job_add_num, 0);
1455                 else {
1456                         for (i = 0; i < o->nr_files; i++)
1457                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1458                 }
1459         }
1460
1461         if (setup_random_seeds(td)) {
1462                 td_verror(td, errno, "setup_random_seeds");
1463                 goto err;
1464         }
1465
1466         if (fixup_options(td))
1467                 goto err;
1468
1469         /*
1470          * Belongs to fixup_options, but o->name is not necessarily set as yet
1471          */
1472         if (!wait_for_ok(jobname, o))
1473                 goto err;
1474
1475         flow_init_job(td);
1476
1477         /*
1478          * IO engines only need this for option callbacks, and the address may
1479          * change in subprocesses.
1480          */
1481         if (td->eo)
1482                 *(struct thread_data **)td->eo = NULL;
1483
1484         if (td_ioengine_flagged(td, FIO_DISKLESSIO)) {
1485                 struct fio_file *f;
1486
1487                 for_each_file(td, f, i)
1488                         f->real_file_size = -1ULL;
1489         }
1490
1491         td->sem = fio_sem_init(FIO_SEM_LOCKED);
1492
1493         td->ts.clat_percentiles = o->clat_percentiles;
1494         td->ts.lat_percentiles = o->lat_percentiles;
1495         td->ts.slat_percentiles = o->slat_percentiles;
1496         td->ts.percentile_precision = o->percentile_precision;
1497         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1498         td->ts.sig_figs = o->sig_figs;
1499
1500         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1501                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1502                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1503                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1504                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1505                 td->ts.iops_stat[i].min_val = ULONG_MAX;
1506                 td->ts.clat_high_prio_stat[i].min_val = ULONG_MAX;
1507                 td->ts.clat_low_prio_stat[i].min_val = ULONG_MAX;
1508         }
1509         td->ts.sync_stat.min_val = ULONG_MAX;
1510         td->ddir_seq_nr = o->ddir_seq_nr;
1511
1512         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1513                 prev_group_jobs = 0;
1514                 groupid++;
1515                 if (groupid == INT_MAX) {
1516                         log_err("fio: too many groups defined\n");
1517                         goto err;
1518                 }
1519         }
1520
1521         td->groupid = groupid;
1522         prev_group_jobs++;
1523
1524         if (setup_rate(td))
1525                 goto err;
1526
1527         if (o->write_lat_log) {
1528                 struct log_params p = {
1529                         .td = td,
1530                         .avg_msec = o->log_avg_msec,
1531                         .hist_msec = o->log_hist_msec,
1532                         .hist_coarseness = o->log_hist_coarseness,
1533                         .log_type = IO_LOG_TYPE_LAT,
1534                         .log_offset = o->log_offset,
1535                         .log_gz = o->log_gz,
1536                         .log_gz_store = o->log_gz_store,
1537                 };
1538                 const char *pre = make_log_name(o->lat_log_file, o->name);
1539                 const char *suf;
1540
1541                 if (p.log_gz_store)
1542                         suf = "log.fz";
1543                 else
1544                         suf = "log";
1545
1546                 gen_log_name(logname, sizeof(logname), "lat", pre,
1547                                 td->thread_number, suf, o->per_job_logs);
1548                 setup_log(&td->lat_log, &p, logname);
1549
1550                 gen_log_name(logname, sizeof(logname), "slat", pre,
1551                                 td->thread_number, suf, o->per_job_logs);
1552                 setup_log(&td->slat_log, &p, logname);
1553
1554                 gen_log_name(logname, sizeof(logname), "clat", pre,
1555                                 td->thread_number, suf, o->per_job_logs);
1556                 setup_log(&td->clat_log, &p, logname);
1557
1558         }
1559
1560         if (o->write_hist_log) {
1561                 struct log_params p = {
1562                         .td = td,
1563                         .avg_msec = o->log_avg_msec,
1564                         .hist_msec = o->log_hist_msec,
1565                         .hist_coarseness = o->log_hist_coarseness,
1566                         .log_type = IO_LOG_TYPE_HIST,
1567                         .log_offset = o->log_offset,
1568                         .log_gz = o->log_gz,
1569                         .log_gz_store = o->log_gz_store,
1570                 };
1571                 const char *pre = make_log_name(o->hist_log_file, o->name);
1572                 const char *suf;
1573
1574 #ifndef CONFIG_ZLIB
1575                 if (td->client_type) {
1576                         log_err("fio: --write_hist_log requires zlib in client/server mode\n");
1577                         goto err;
1578                 }
1579 #endif
1580
1581                 if (p.log_gz_store)
1582                         suf = "log.fz";
1583                 else
1584                         suf = "log";
1585
1586                 gen_log_name(logname, sizeof(logname), "clat_hist", pre,
1587                                 td->thread_number, suf, o->per_job_logs);
1588                 setup_log(&td->clat_hist_log, &p, logname);
1589         }
1590
1591         if (o->write_bw_log) {
1592                 struct log_params p = {
1593                         .td = td,
1594                         .avg_msec = o->log_avg_msec,
1595                         .hist_msec = o->log_hist_msec,
1596                         .hist_coarseness = o->log_hist_coarseness,
1597                         .log_type = IO_LOG_TYPE_BW,
1598                         .log_offset = o->log_offset,
1599                         .log_gz = o->log_gz,
1600                         .log_gz_store = o->log_gz_store,
1601                 };
1602                 const char *pre = make_log_name(o->bw_log_file, o->name);
1603                 const char *suf;
1604
1605                 if (fio_option_is_set(o, bw_avg_time))
1606                         p.avg_msec = min(o->log_avg_msec, o->bw_avg_time);
1607                 else
1608                         o->bw_avg_time = p.avg_msec;
1609
1610                 p.hist_msec = o->log_hist_msec;
1611                 p.hist_coarseness = o->log_hist_coarseness;
1612
1613                 if (p.log_gz_store)
1614                         suf = "log.fz";
1615                 else
1616                         suf = "log";
1617
1618                 gen_log_name(logname, sizeof(logname), "bw", pre,
1619                                 td->thread_number, suf, o->per_job_logs);
1620                 setup_log(&td->bw_log, &p, logname);
1621         }
1622         if (o->write_iops_log) {
1623                 struct log_params p = {
1624                         .td = td,
1625                         .avg_msec = o->log_avg_msec,
1626                         .hist_msec = o->log_hist_msec,
1627                         .hist_coarseness = o->log_hist_coarseness,
1628                         .log_type = IO_LOG_TYPE_IOPS,
1629                         .log_offset = o->log_offset,
1630                         .log_gz = o->log_gz,
1631                         .log_gz_store = o->log_gz_store,
1632                 };
1633                 const char *pre = make_log_name(o->iops_log_file, o->name);
1634                 const char *suf;
1635
1636                 if (fio_option_is_set(o, iops_avg_time))
1637                         p.avg_msec = min(o->log_avg_msec, o->iops_avg_time);
1638                 else
1639                         o->iops_avg_time = p.avg_msec;
1640
1641                 p.hist_msec = o->log_hist_msec;
1642                 p.hist_coarseness = o->log_hist_coarseness;
1643
1644                 if (p.log_gz_store)
1645                         suf = "log.fz";
1646                 else
1647                         suf = "log";
1648
1649                 gen_log_name(logname, sizeof(logname), "iops", pre,
1650                                 td->thread_number, suf, o->per_job_logs);
1651                 setup_log(&td->iops_log, &p, logname);
1652         }
1653
1654         if (!o->name)
1655                 o->name = strdup(jobname);
1656
1657         if (output_format & FIO_OUTPUT_NORMAL) {
1658                 if (!job_add_num) {
1659                         if (is_backend && !recursed)
1660                                 fio_server_send_add_job(td);
1661
1662                         if (!td_ioengine_flagged(td, FIO_NOIO)) {
1663                                 char *c1, *c2, *c3, *c4;
1664                                 char *c5 = NULL, *c6 = NULL;
1665                                 int i2p = is_power_of_2(o->kb_base);
1666                                 struct buf_output out;
1667
1668                                 c1 = num2str(o->min_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1669                                 c2 = num2str(o->max_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1670                                 c3 = num2str(o->min_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1671                                 c4 = num2str(o->max_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1672
1673                                 if (!o->bs_is_seq_rand) {
1674                                         c5 = num2str(o->min_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1675                                         c6 = num2str(o->max_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1676                                 }
1677
1678                                 buf_output_init(&out);
1679                                 __log_buf(&out, "%s: (g=%d): rw=%s, ", td->o.name,
1680                                                         td->groupid,
1681                                                         ddir_str(o->td_ddir));
1682
1683                                 if (o->bs_is_seq_rand)
1684                                         __log_buf(&out, "bs=(R) %s-%s, (W) %s-%s, bs_is_seq_rand, ",
1685                                                         c1, c2, c3, c4);
1686                                 else
1687                                         __log_buf(&out, "bs=(R) %s-%s, (W) %s-%s, (T) %s-%s, ",
1688                                                         c1, c2, c3, c4, c5, c6);
1689
1690                                 __log_buf(&out, "ioengine=%s, iodepth=%u\n",
1691                                                 td->io_ops->name, o->iodepth);
1692                                 log_info_buf(out.buf, out.buflen);
1693                                 buf_output_free(&out);
1694
1695                                 free(c1);
1696                                 free(c2);
1697                                 free(c3);
1698                                 free(c4);
1699                                 free(c5);
1700                                 free(c6);
1701                         }
1702                 } else if (job_add_num == 1)
1703                         log_info("...\n");
1704         }
1705
1706         if (td_steadystate_init(td))
1707                 goto err;
1708
1709         if (o->merge_blktrace_file && !merge_blktrace_iologs(td))
1710                 goto err;
1711
1712         if (merge_blktrace_only) {
1713                 put_job(td);
1714                 return 0;
1715         }
1716
1717         /*
1718          * recurse add identical jobs, clear numjobs and stonewall options
1719          * as they don't apply to sub-jobs
1720          */
1721         numjobs = o->numjobs;
1722         while (--numjobs) {
1723                 struct thread_data *td_new = get_new_job(false, td, true, jobname);
1724
1725                 if (!td_new)
1726                         goto err;
1727
1728                 td_new->o.numjobs = 1;
1729                 td_new->o.stonewall = 0;
1730                 td_new->o.new_group = 0;
1731                 td_new->subjob_number = numjobs;
1732                 td_new->o.ss_dur = o->ss_dur * 1000000l;
1733                 td_new->o.ss_limit = o->ss_limit;
1734
1735                 if (file_alloced) {
1736                         if (td_new->files) {
1737                                 struct fio_file *f;
1738                                 for_each_file(td_new, f, i) {
1739                                         if (f->file_name)
1740                                                 sfree(f->file_name);
1741                                         sfree(f);
1742                                 }
1743                                 free(td_new->files);
1744                                 td_new->files = NULL;
1745                         }
1746                         td_new->files_index = 0;
1747                         td_new->files_size = 0;
1748                         if (td_new->o.filename) {
1749                                 free(td_new->o.filename);
1750                                 td_new->o.filename = NULL;
1751                         }
1752                 }
1753
1754                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1755                         goto err;
1756         }
1757
1758         return 0;
1759 err:
1760         put_job(td);
1761         return -1;
1762 }
1763
1764 /*
1765  * Parse as if 'o' was a command line
1766  */
1767 void add_job_opts(const char **o, int client_type)
1768 {
1769         struct thread_data *td, *td_parent;
1770         int i, in_global = 1;
1771         char jobname[32];
1772
1773         i = 0;
1774         td_parent = td = NULL;
1775         while (o[i]) {
1776                 if (!strncmp(o[i], "name", 4)) {
1777                         in_global = 0;
1778                         if (td)
1779                                 add_job(td, jobname, 0, 0, client_type);
1780                         td = NULL;
1781                         sprintf(jobname, "%s", o[i] + 5);
1782                 }
1783                 if (in_global && !td_parent)
1784                         td_parent = get_new_job(true, &def_thread, false, jobname);
1785                 else if (!in_global && !td) {
1786                         if (!td_parent)
1787                                 td_parent = &def_thread;
1788                         td = get_new_job(false, td_parent, false, jobname);
1789                 }
1790                 if (in_global)
1791                         fio_options_parse(td_parent, (char **) &o[i], 1);
1792                 else
1793                         fio_options_parse(td, (char **) &o[i], 1);
1794                 i++;
1795         }
1796
1797         if (td)
1798                 add_job(td, jobname, 0, 0, client_type);
1799 }
1800
1801 static int skip_this_section(const char *name)
1802 {
1803         int i;
1804
1805         if (!nr_job_sections)
1806                 return 0;
1807         if (!strncmp(name, "global", 6))
1808                 return 0;
1809
1810         for (i = 0; i < nr_job_sections; i++)
1811                 if (!strcmp(job_sections[i], name))
1812                         return 0;
1813
1814         return 1;
1815 }
1816
1817 static int is_empty_or_comment(char *line)
1818 {
1819         unsigned int i;
1820
1821         for (i = 0; i < strlen(line); i++) {
1822                 if (line[i] == ';')
1823                         return 1;
1824                 if (line[i] == '#')
1825                         return 1;
1826                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1827                         return 0;
1828         }
1829
1830         return 1;
1831 }
1832
1833 /*
1834  * This is our [ini] type file parser.
1835  */
1836 static int __parse_jobs_ini(struct thread_data *td,
1837                 char *file, int is_buf, int stonewall_flag, int type,
1838                 int nested, char *name, char ***popts, int *aopts, int *nopts)
1839 {
1840         bool global = false;
1841         char *string;
1842         FILE *f;
1843         char *p;
1844         int ret = 0, stonewall;
1845         int first_sect = 1;
1846         int skip_fgets = 0;
1847         int inside_skip = 0;
1848         char **opts;
1849         int i, alloc_opts, num_opts;
1850
1851         dprint(FD_PARSE, "Parsing ini file %s\n", file);
1852         assert(td || !nested);
1853
1854         if (is_buf)
1855                 f = NULL;
1856         else {
1857                 if (!strcmp(file, "-"))
1858                         f = stdin;
1859                 else
1860                         f = fopen(file, "r");
1861
1862                 if (!f) {
1863                         int __err = errno;
1864
1865                         log_err("fio: unable to open '%s' job file\n", file);
1866                         if (td)
1867                                 td_verror(td, __err, "job file open");
1868                         return 1;
1869                 }
1870         }
1871
1872         string = malloc(OPT_LEN_MAX);
1873
1874         /*
1875          * it's really 256 + small bit, 280 should suffice
1876          */
1877         if (!nested) {
1878                 name = malloc(280);
1879                 memset(name, 0, 280);
1880         }
1881
1882         opts = NULL;
1883         if (nested && popts) {
1884                 opts = *popts;
1885                 alloc_opts = *aopts;
1886                 num_opts = *nopts;
1887         }
1888
1889         if (!opts) {
1890                 alloc_opts = 8;
1891                 opts = malloc(sizeof(char *) * alloc_opts);
1892                 num_opts = 0;
1893         }
1894
1895         stonewall = stonewall_flag;
1896         do {
1897                 /*
1898                  * if skip_fgets is set, we already have loaded a line we
1899                  * haven't handled.
1900                  */
1901                 if (!skip_fgets) {
1902                         if (is_buf)
1903                                 p = strsep(&file, "\n");
1904                         else
1905                                 p = fgets(string, OPT_LEN_MAX, f);
1906                         if (!p)
1907                                 break;
1908                 }
1909
1910                 skip_fgets = 0;
1911                 strip_blank_front(&p);
1912                 strip_blank_end(p);
1913
1914                 dprint(FD_PARSE, "%s\n", p);
1915                 if (is_empty_or_comment(p))
1916                         continue;
1917
1918                 if (!nested) {
1919                         if (sscanf(p, "[%255[^\n]]", name) != 1) {
1920                                 if (inside_skip)
1921                                         continue;
1922
1923                                 log_err("fio: option <%s> outside of "
1924                                         "[] job section\n", p);
1925                                 ret = 1;
1926                                 break;
1927                         }
1928
1929                         name[strlen(name) - 1] = '\0';
1930
1931                         if (skip_this_section(name)) {
1932                                 inside_skip = 1;
1933                                 continue;
1934                         } else
1935                                 inside_skip = 0;
1936
1937                         dprint(FD_PARSE, "Parsing section [%s]\n", name);
1938
1939                         global = !strncmp(name, "global", 6);
1940
1941                         if (dump_cmdline) {
1942                                 if (first_sect)
1943                                         log_info("fio ");
1944                                 if (!global)
1945                                         log_info("--name=%s ", name);
1946                                 first_sect = 0;
1947                         }
1948
1949                         td = get_new_job(global, &def_thread, false, name);
1950                         if (!td) {
1951                                 ret = 1;
1952                                 break;
1953                         }
1954
1955                         /*
1956                          * Separate multiple job files by a stonewall
1957                          */
1958                         if (!global && stonewall) {
1959                                 td->o.stonewall = stonewall;
1960                                 stonewall = 0;
1961                         }
1962
1963                         num_opts = 0;
1964                         memset(opts, 0, alloc_opts * sizeof(char *));
1965                 }
1966                 else
1967                         skip_fgets = 1;
1968
1969                 while (1) {
1970                         if (!skip_fgets) {
1971                                 if (is_buf)
1972                                         p = strsep(&file, "\n");
1973                                 else
1974                                         p = fgets(string, OPT_LEN_MAX, f);
1975                                 if (!p)
1976                                         break;
1977                                 dprint(FD_PARSE, "%s", p);
1978                         }
1979                         else
1980                                 skip_fgets = 0;
1981
1982                         if (is_empty_or_comment(p))
1983                                 continue;
1984
1985                         strip_blank_front(&p);
1986
1987                         /*
1988                          * new section, break out and make sure we don't
1989                          * fgets() a new line at the top.
1990                          */
1991                         if (p[0] == '[') {
1992                                 if (nested) {
1993                                         log_err("No new sections in included files\n");
1994                                         ret = 1;
1995                                         goto out;
1996                                 }
1997
1998                                 skip_fgets = 1;
1999                                 break;
2000                         }
2001
2002                         strip_blank_end(p);
2003
2004                         if (!strncmp(p, "include", strlen("include"))) {
2005                                 char *filename = p + strlen("include") + 1,
2006                                         *ts, *full_fn = NULL;
2007
2008                                 /*
2009                                  * Allow for the include filename
2010                                  * specification to be relative.
2011                                  */
2012                                 if (access(filename, F_OK) &&
2013                                     (ts = strrchr(file, '/'))) {
2014                                         if (asprintf(&full_fn, "%.*s%s",
2015                                                  (int)(ts - file + 1), file,
2016                                                  filename) < 0) {
2017                                                 ret = ENOMEM;
2018                                                 break;
2019                                         }
2020                                         filename = full_fn;
2021                                 }
2022
2023                                 ret = __parse_jobs_ini(td, filename, is_buf,
2024                                                        stonewall_flag, type, 1,
2025                                                        name, &opts,
2026                                                        &alloc_opts, &num_opts);
2027
2028                                 if (ret) {
2029                                         log_err("Error %d while parsing "
2030                                                 "include file %s\n",
2031                                                 ret, filename);
2032                                 }
2033
2034                                 if (full_fn)
2035                                         free(full_fn);
2036
2037                                 if (ret)
2038                                         break;
2039
2040                                 continue;
2041                         }
2042
2043                         if (num_opts == alloc_opts) {
2044                                 alloc_opts <<= 1;
2045                                 opts = realloc(opts,
2046                                                 alloc_opts * sizeof(char *));
2047                         }
2048
2049                         opts[num_opts] = strdup(p);
2050                         num_opts++;
2051                 }
2052
2053                 if (nested) {
2054                         *popts = opts;
2055                         *aopts = alloc_opts;
2056                         *nopts = num_opts;
2057                         goto out;
2058                 }
2059
2060                 ret = fio_options_parse(td, opts, num_opts);
2061
2062                 if (!ret) {
2063                         if (!strcmp(file, "-") && td->o.read_iolog_file != NULL) {
2064                                 char *fname = get_name_by_idx(td->o.read_iolog_file,
2065                                                               td->subjob_number);
2066                                 if (!strcmp(fname, "-")) {
2067                                         log_err("fio: we can't read both iolog "
2068                                                 "and job file from stdin.\n");
2069                                         ret = 1;
2070                                 }
2071                         }
2072                 }
2073                 if (!ret) {
2074                         if (dump_cmdline)
2075                                 dump_opt_list(td);
2076
2077                         ret = add_job(td, name, 0, 0, type);
2078                 } else {
2079                         log_err("fio: job %s dropped\n", name);
2080                         put_job(td);
2081                 }
2082
2083                 for (i = 0; i < num_opts; i++)
2084                         free(opts[i]);
2085                 num_opts = 0;
2086         } while (!ret);
2087
2088         if (dump_cmdline)
2089                 log_info("\n");
2090
2091         i = 0;
2092         while (i < nr_job_sections) {
2093                 free(job_sections[i]);
2094                 i++;
2095         }
2096
2097         free(opts);
2098 out:
2099         free(string);
2100         if (!nested)
2101                 free(name);
2102         if (!is_buf && f != stdin)
2103                 fclose(f);
2104         return ret;
2105 }
2106
2107 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
2108 {
2109         return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
2110                         0, NULL, NULL, NULL, NULL);
2111 }
2112
2113 static int fill_def_thread(void)
2114 {
2115         memset(&def_thread, 0, sizeof(def_thread));
2116         INIT_FLIST_HEAD(&def_thread.opt_list);
2117
2118         fio_getaffinity(getpid(), &def_thread.o.cpumask);
2119         def_thread.o.error_dump = 1;
2120
2121         /*
2122          * fill default options
2123          */
2124         fio_fill_default_options(&def_thread);
2125         return 0;
2126 }
2127
2128 static void show_debug_categories(void)
2129 {
2130 #ifdef FIO_INC_DEBUG
2131         const struct debug_level *dl = &debug_levels[0];
2132         int curlen, first = 1;
2133
2134         curlen = 0;
2135         while (dl->name) {
2136                 int has_next = (dl + 1)->name != NULL;
2137
2138                 if (first || curlen + strlen(dl->name) >= 80) {
2139                         if (!first) {
2140                                 printf("\n");
2141                                 curlen = 0;
2142                         }
2143                         curlen += printf("\t\t\t%s", dl->name);
2144                         curlen += 3 * (8 - 1);
2145                         if (has_next)
2146                                 curlen += printf(",");
2147                 } else {
2148                         curlen += printf("%s", dl->name);
2149                         if (has_next)
2150                                 curlen += printf(",");
2151                 }
2152                 dl++;
2153                 first = 0;
2154         }
2155         printf("\n");
2156 #endif
2157 }
2158
2159 /*
2160  * Following options aren't printed by usage().
2161  * --append-terse - Equivalent to --output-format=terse, see f6a7df53.
2162  * --latency-log - Deprecated option.
2163  */
2164 static void usage(const char *name)
2165 {
2166         printf("%s\n", fio_version_string);
2167         printf("%s [options] [job options] <job file(s)>\n", name);
2168         printf("  --debug=options\tEnable debug logging. May be one/more of:\n");
2169         show_debug_categories();
2170         printf("  --parse-only\t\tParse options only, don't start any IO\n");
2171         printf("  --merge-blktrace-only\tMerge blktraces only, don't start any IO\n");
2172         printf("  --output\t\tWrite output to file\n");
2173         printf("  --bandwidth-log\tGenerate aggregate bandwidth logs\n");
2174         printf("  --minimal\t\tMinimal (terse) output\n");
2175         printf("  --output-format=type\tOutput format (terse,json,json+,normal)\n");
2176         printf("  --terse-version=type\tSet terse version output format"
2177                 " (default 3, or 2 or 4)\n");
2178         printf("  --version\t\tPrint version info and exit\n");
2179         printf("  --help\t\tPrint this page\n");
2180         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
2181         printf("  --crctest=[type]\tTest speed of checksum functions\n");
2182         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
2183                 " them\n");
2184         printf("  --enghelp=engine\tPrint ioengine help, or list"
2185                 " available ioengines\n");
2186         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
2187                 " cmd\n");
2188         printf("  --showcmd\t\tTurn a job file into command line options\n");
2189         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
2190         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
2191         printf("  --eta-newline=t\tForce a new line for every 't'");
2192         printf(" period passed\n");
2193         printf("  --status-interval=t\tForce full status dump every");
2194         printf(" 't' period passed\n");
2195         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
2196                 " writes\n");
2197         printf("  --section=name\tOnly run specified section in job file,"
2198                 " multiple sections can be specified\n");
2199         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
2200                 " (def 16384)\n");
2201         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
2202         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
2203         printf("  --server=args\t\tStart a backend fio server\n");
2204         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
2205         printf("  --client=hostname\tTalk to remote backend(s) fio server at hostname\n");
2206         printf("  --remote-config=file\tTell fio server to load this local job file\n");
2207         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
2208                 "\t\t\t(option=system,percpu) or run unit work\n"
2209                 "\t\t\tcalibration only (option=calibrate)\n");
2210 #ifdef CONFIG_ZLIB
2211         printf("  --inflate-log=log\tInflate and output compressed log\n");
2212 #endif
2213         printf("  --trigger-file=file\tExecute trigger cmd when file exists\n");
2214         printf("  --trigger-timeout=t\tExecute trigger at this time\n");
2215         printf("  --trigger=cmd\t\tSet this command as local trigger\n");
2216         printf("  --trigger-remote=cmd\tSet this command as remote trigger\n");
2217         printf("  --aux-path=path\tUse this path for fio state generated files\n");
2218         printf("\nFio was written by Jens Axboe <axboe@kernel.dk>\n");
2219 }
2220
2221 #ifdef FIO_INC_DEBUG
2222 const struct debug_level debug_levels[] = {
2223         { .name = "process",
2224           .help = "Process creation/exit logging",
2225           .shift = FD_PROCESS,
2226         },
2227         { .name = "file",
2228           .help = "File related action logging",
2229           .shift = FD_FILE,
2230         },
2231         { .name = "io",
2232           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
2233           .shift = FD_IO,
2234         },
2235         { .name = "mem",
2236           .help = "Memory allocation/freeing logging",
2237           .shift = FD_MEM,
2238         },
2239         { .name = "blktrace",
2240           .help = "blktrace action logging",
2241           .shift = FD_BLKTRACE,
2242         },
2243         { .name = "verify",
2244           .help = "IO verification action logging",
2245           .shift = FD_VERIFY,
2246         },
2247         { .name = "random",
2248           .help = "Random generation logging",
2249           .shift = FD_RANDOM,
2250         },
2251         { .name = "parse",
2252           .help = "Parser logging",
2253           .shift = FD_PARSE,
2254         },
2255         { .name = "diskutil",
2256           .help = "Disk utility logging actions",
2257           .shift = FD_DISKUTIL,
2258         },
2259         { .name = "job",
2260           .help = "Logging related to creating/destroying jobs",
2261           .shift = FD_JOB,
2262         },
2263         { .name = "mutex",
2264           .help = "Mutex logging",
2265           .shift = FD_MUTEX
2266         },
2267         { .name = "profile",
2268           .help = "Logging related to profiles",
2269           .shift = FD_PROFILE,
2270         },
2271         { .name = "time",
2272           .help = "Logging related to time keeping functions",
2273           .shift = FD_TIME,
2274         },
2275         { .name = "net",
2276           .help = "Network logging",
2277           .shift = FD_NET,
2278         },
2279         { .name = "rate",
2280           .help = "Rate logging",
2281           .shift = FD_RATE,
2282         },
2283         { .name = "compress",
2284           .help = "Log compression logging",
2285           .shift = FD_COMPRESS,
2286         },
2287         { .name = "steadystate",
2288           .help = "Steady state detection logging",
2289           .shift = FD_STEADYSTATE,
2290         },
2291         { .name = "helperthread",
2292           .help = "Helper thread logging",
2293           .shift = FD_HELPERTHREAD,
2294         },
2295         { .name = "zbd",
2296           .help = "Zoned Block Device logging",
2297           .shift = FD_ZBD,
2298         },
2299         { .name = NULL, },
2300 };
2301
2302 static int set_debug(const char *string)
2303 {
2304         const struct debug_level *dl;
2305         char *p = (char *) string;
2306         char *opt;
2307         int i;
2308
2309         if (!string)
2310                 return 0;
2311
2312         if (!strcmp(string, "?") || !strcmp(string, "help")) {
2313                 log_info("fio: dumping debug options:");
2314                 for (i = 0; debug_levels[i].name; i++) {
2315                         dl = &debug_levels[i];
2316                         log_info("%s,", dl->name);
2317                 }
2318                 log_info("all\n");
2319                 return 1;
2320         }
2321
2322         while ((opt = strsep(&p, ",")) != NULL) {
2323                 int found = 0;
2324
2325                 if (!strncmp(opt, "all", 3)) {
2326                         log_info("fio: set all debug options\n");
2327                         fio_debug = ~0UL;
2328                         continue;
2329                 }
2330
2331                 for (i = 0; debug_levels[i].name; i++) {
2332                         dl = &debug_levels[i];
2333                         found = !strncmp(opt, dl->name, strlen(dl->name));
2334                         if (!found)
2335                                 continue;
2336
2337                         if (dl->shift == FD_JOB) {
2338                                 opt = strchr(opt, ':');
2339                                 if (!opt) {
2340                                         log_err("fio: missing job number\n");
2341                                         break;
2342                                 }
2343                                 opt++;
2344                                 fio_debug_jobno = atoi(opt);
2345                                 log_info("fio: set debug jobno %d\n",
2346                                                         fio_debug_jobno);
2347                         } else {
2348                                 log_info("fio: set debug option %s\n", opt);
2349                                 fio_debug |= (1UL << dl->shift);
2350                         }
2351                         break;
2352                 }
2353
2354                 if (!found)
2355                         log_err("fio: debug mask %s not found\n", opt);
2356         }
2357         return 0;
2358 }
2359 #else
2360 static int set_debug(const char *string)
2361 {
2362         log_err("fio: debug tracing not included in build\n");
2363         return 1;
2364 }
2365 #endif
2366
2367 static void fio_options_fill_optstring(void)
2368 {
2369         char *ostr = cmd_optstr;
2370         int i, c;
2371
2372         c = i = 0;
2373         while (l_opts[i].name) {
2374                 ostr[c++] = l_opts[i].val;
2375                 if (l_opts[i].has_arg == required_argument)
2376                         ostr[c++] = ':';
2377                 else if (l_opts[i].has_arg == optional_argument) {
2378                         ostr[c++] = ':';
2379                         ostr[c++] = ':';
2380                 }
2381                 i++;
2382         }
2383         ostr[c] = '\0';
2384 }
2385
2386 static int client_flag_set(char c)
2387 {
2388         int i;
2389
2390         i = 0;
2391         while (l_opts[i].name) {
2392                 int val = l_opts[i].val;
2393
2394                 if (c == (val & 0xff))
2395                         return (val & FIO_CLIENT_FLAG);
2396
2397                 i++;
2398         }
2399
2400         return 0;
2401 }
2402
2403 static void parse_cmd_client(void *client, char *opt)
2404 {
2405         fio_client_add_cmd_option(client, opt);
2406 }
2407
2408 static void show_closest_option(const char *name)
2409 {
2410         int best_option, best_distance;
2411         int i, distance;
2412
2413         while (*name == '-')
2414                 name++;
2415
2416         best_option = -1;
2417         best_distance = INT_MAX;
2418         i = 0;
2419         while (l_opts[i].name) {
2420                 distance = string_distance(name, l_opts[i].name);
2421                 if (distance < best_distance) {
2422                         best_distance = distance;
2423                         best_option = i;
2424                 }
2425                 i++;
2426         }
2427
2428         if (best_option != -1 && string_distance_ok(name, best_distance))
2429                 log_err("Did you mean %s?\n", l_opts[best_option].name);
2430 }
2431
2432 static int parse_output_format(const char *optarg)
2433 {
2434         char *p, *orig, *opt;
2435         int ret = 0;
2436
2437         p = orig = strdup(optarg);
2438
2439         output_format = 0;
2440
2441         while ((opt = strsep(&p, ",")) != NULL) {
2442                 if (!strcmp(opt, "minimal") ||
2443                     !strcmp(opt, "terse") ||
2444                     !strcmp(opt, "csv"))
2445                         output_format |= FIO_OUTPUT_TERSE;
2446                 else if (!strcmp(opt, "json"))
2447                         output_format |= FIO_OUTPUT_JSON;
2448                 else if (!strcmp(opt, "json+"))
2449                         output_format |= (FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS);
2450                 else if (!strcmp(opt, "normal"))
2451                         output_format |= FIO_OUTPUT_NORMAL;
2452                 else {
2453                         log_err("fio: invalid output format %s\n", opt);
2454                         ret = 1;
2455                         break;
2456                 }
2457         }
2458
2459         free(orig);
2460         return ret;
2461 }
2462
2463 int parse_cmd_line(int argc, char *argv[], int client_type)
2464 {
2465         struct thread_data *td = NULL;
2466         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
2467         char *ostr = cmd_optstr;
2468         char *pid_file = NULL;
2469         void *cur_client = NULL;
2470         bool backend = false;
2471
2472         /*
2473          * Reset optind handling, since we may call this multiple times
2474          * for the backend.
2475          */
2476         optind = 1;
2477
2478         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
2479                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
2480                         parse_cmd_client(cur_client, argv[optind - 1]);
2481                         c &= ~FIO_CLIENT_FLAG;
2482                 }
2483
2484                 switch (c) {
2485                 case 'a':
2486                         smalloc_pool_size = atoi(optarg);
2487                         smalloc_pool_size <<= 10;
2488                         sinit();
2489                         break;
2490                 case 'l':
2491                         log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
2492                         do_exit++;
2493                         exit_val = 1;
2494                         break;
2495                 case 'b':
2496                         write_bw_log = true;
2497                         break;
2498                 case 'o': {
2499                         FILE *tmp;
2500
2501                         if (f_out && f_out != stdout)
2502                                 fclose(f_out);
2503
2504                         tmp = fopen(optarg, "w+");
2505                         if (!tmp) {
2506                                 log_err("fio: output file open error: %s\n", strerror(errno));
2507                                 exit_val = 1;
2508                                 do_exit++;
2509                                 break;
2510                         }
2511                         f_err = f_out = tmp;
2512                         break;
2513                         }
2514                 case 'm':
2515                         output_format = FIO_OUTPUT_TERSE;
2516                         break;
2517                 case 'F':
2518                         if (parse_output_format(optarg)) {
2519                                 log_err("fio: failed parsing output-format\n");
2520                                 exit_val = 1;
2521                                 do_exit++;
2522                                 break;
2523                         }
2524                         break;
2525                 case 'f':
2526                         output_format |= FIO_OUTPUT_TERSE;
2527                         break;
2528                 case 'h':
2529                         did_arg = true;
2530                         if (!cur_client) {
2531                                 usage(argv[0]);
2532                                 do_exit++;
2533                         }
2534                         break;
2535                 case 'c':
2536                         did_arg = true;
2537                         if (!cur_client) {
2538                                 fio_show_option_help(optarg);
2539                                 do_exit++;
2540                         }
2541                         break;
2542                 case 'i':
2543                         did_arg = true;
2544                         if (!cur_client) {
2545                                 fio_show_ioengine_help(optarg);
2546                                 do_exit++;
2547                         }
2548                         break;
2549                 case 's':
2550                         did_arg = true;
2551                         dump_cmdline = true;
2552                         break;
2553                 case 'r':
2554                         read_only = 1;
2555                         break;
2556                 case 'v':
2557                         did_arg = true;
2558                         if (!cur_client) {
2559                                 log_info("%s\n", fio_version_string);
2560                                 do_exit++;
2561                         }
2562                         break;
2563                 case 'V':
2564                         terse_version = atoi(optarg);
2565                         if (!(terse_version >= 2 && terse_version <= 5)) {
2566                                 log_err("fio: bad terse version format\n");
2567                                 exit_val = 1;
2568                                 do_exit++;
2569                         }
2570                         break;
2571                 case 'e':
2572                         if (!strcmp("always", optarg))
2573                                 eta_print = FIO_ETA_ALWAYS;
2574                         else if (!strcmp("never", optarg))
2575                                 eta_print = FIO_ETA_NEVER;
2576                         break;
2577                 case 'E': {
2578                         long long t = 0;
2579
2580                         if (check_str_time(optarg, &t, 1)) {
2581                                 log_err("fio: failed parsing eta time %s\n", optarg);
2582                                 exit_val = 1;
2583                                 do_exit++;
2584                                 break;
2585                         }
2586                         eta_new_line = t / 1000;
2587                         if (!eta_new_line) {
2588                                 log_err("fio: eta new line time too short\n");
2589                                 exit_val = 1;
2590                                 do_exit++;
2591                         }
2592                         break;
2593                         }
2594                 case 'O': {
2595                         long long t = 0;
2596
2597                         if (check_str_time(optarg, &t, 1)) {
2598                                 log_err("fio: failed parsing eta interval %s\n", optarg);
2599                                 exit_val = 1;
2600                                 do_exit++;
2601                                 break;
2602                         }
2603                         eta_interval_msec = t / 1000;
2604                         if (eta_interval_msec < DISK_UTIL_MSEC) {
2605                                 log_err("fio: eta interval time too short (%umsec min)\n", DISK_UTIL_MSEC);
2606                                 exit_val = 1;
2607                                 do_exit++;
2608                         }
2609                         break;
2610                         }
2611                 case 'd':
2612                         if (set_debug(optarg))
2613                                 do_exit++;
2614                         break;
2615                 case 'P':
2616                         did_arg = true;
2617                         parse_only = true;
2618                         break;
2619                 case 'x': {
2620                         size_t new_size;
2621
2622                         if (!strcmp(optarg, "global")) {
2623                                 log_err("fio: can't use global as only "
2624                                         "section\n");
2625                                 do_exit++;
2626                                 exit_val = 1;
2627                                 break;
2628                         }
2629                         new_size = (nr_job_sections + 1) * sizeof(char *);
2630                         job_sections = realloc(job_sections, new_size);
2631                         job_sections[nr_job_sections] = strdup(optarg);
2632                         nr_job_sections++;
2633                         break;
2634                         }
2635 #ifdef CONFIG_ZLIB
2636                 case 'X':
2637                         exit_val = iolog_file_inflate(optarg);
2638                         did_arg = true;
2639                         do_exit++;
2640                         break;
2641 #endif
2642                 case 'p':
2643                         did_arg = true;
2644                         if (exec_profile)
2645                                 free(exec_profile);
2646                         exec_profile = strdup(optarg);
2647                         break;
2648                 case FIO_GETOPT_JOB: {
2649                         const char *opt = l_opts[lidx].name;
2650                         char *val = optarg;
2651
2652                         if (!strncmp(opt, "name", 4) && td) {
2653                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2654                                 if (ret)
2655                                         goto out_free;
2656                                 td = NULL;
2657                                 did_arg = true;
2658                         }
2659                         if (!td) {
2660                                 int is_section = !strncmp(opt, "name", 4);
2661                                 int global = 0;
2662
2663                                 if (!is_section || !strncmp(val, "global", 6))
2664                                         global = 1;
2665
2666                                 if (is_section && skip_this_section(val))
2667                                         continue;
2668
2669                                 td = get_new_job(global, &def_thread, true, NULL);
2670                                 if (!td || ioengine_load(td)) {
2671                                         if (td) {
2672                                                 put_job(td);
2673                                                 td = NULL;
2674                                         }
2675                                         do_exit++;
2676                                         exit_val = 1;
2677                                         break;
2678                                 }
2679                                 fio_options_set_ioengine_opts(l_opts, td);
2680                         }
2681
2682                         if ((!val || !strlen(val)) &&
2683                             l_opts[lidx].has_arg == required_argument) {
2684                                 log_err("fio: option %s requires an argument\n", opt);
2685                                 ret = 1;
2686                         } else
2687                                 ret = fio_cmd_option_parse(td, opt, val);
2688
2689                         if (ret) {
2690                                 if (td) {
2691                                         put_job(td);
2692                                         td = NULL;
2693                                 }
2694                                 do_exit++;
2695                                 exit_val = 1;
2696                         }
2697
2698                         if (!ret && !strcmp(opt, "ioengine")) {
2699                                 if (ioengine_load(td)) {
2700                                         put_job(td);
2701                                         td = NULL;
2702                                         do_exit++;
2703                                         exit_val = 1;
2704                                         break;
2705                                 }
2706                                 fio_options_set_ioengine_opts(l_opts, td);
2707                         }
2708                         break;
2709                 }
2710                 case FIO_GETOPT_IOENGINE: {
2711                         const char *opt = l_opts[lidx].name;
2712                         char *val = optarg;
2713
2714                         if (!td)
2715                                 break;
2716
2717                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
2718                         break;
2719                 }
2720                 case 'w':
2721                         warnings_fatal = 1;
2722                         break;
2723                 case 'j':
2724                         max_jobs = atoi(optarg);
2725                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2726                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
2727                                 do_exit++;
2728                                 exit_val = 1;
2729                         }
2730                         break;
2731                 case 'S':
2732                         did_arg = true;
2733 #ifndef CONFIG_NO_SHM
2734                         if (nr_clients) {
2735                                 log_err("fio: can't be both client and server\n");
2736                                 do_exit++;
2737                                 exit_val = 1;
2738                                 break;
2739                         }
2740                         if (optarg)
2741                                 fio_server_set_arg(optarg);
2742                         is_backend = true;
2743                         backend = true;
2744 #else
2745                         log_err("fio: client/server requires SHM support\n");
2746                         do_exit++;
2747                         exit_val = 1;
2748 #endif
2749                         break;
2750                 case 'D':
2751                         if (pid_file)
2752                                 free(pid_file);
2753                         pid_file = strdup(optarg);
2754                         break;
2755                 case 'I':
2756                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
2757                                 /* exit on error and calibration only */
2758                                 did_arg = true;
2759                                 do_exit++;
2760                                 if (ret == -1)
2761                                         exit_val = 1;
2762                         }
2763                         break;
2764                 case 'C':
2765                         did_arg = true;
2766                         if (is_backend) {
2767                                 log_err("fio: can't be both client and server\n");
2768                                 do_exit++;
2769                                 exit_val = 1;
2770                                 break;
2771                         }
2772                         /* if --client parameter contains a pathname */
2773                         if (0 == access(optarg, R_OK)) {
2774                                 /* file contains a list of host addrs or names */
2775                                 char hostaddr[PATH_MAX] = {0};
2776                                 char formatstr[8];
2777                                 FILE * hostf = fopen(optarg, "r");
2778                                 if (!hostf) {
2779                                         log_err("fio: could not open client list file %s for read\n", optarg);
2780                                         do_exit++;
2781                                         exit_val = 1;
2782                                         break;
2783                                 }
2784                                 sprintf(formatstr, "%%%ds", PATH_MAX - 1);
2785                                 /*
2786                                  * read at most PATH_MAX-1 chars from each
2787                                  * record in this file
2788                                  */
2789                                 while (fscanf(hostf, formatstr, hostaddr) == 1) {
2790                                         /* expect EVERY host in file to be valid */
2791                                         if (fio_client_add(&fio_client_ops, hostaddr, &cur_client)) {
2792                                                 log_err("fio: failed adding client %s from file %s\n", hostaddr, optarg);
2793                                                 do_exit++;
2794                                                 exit_val = 1;
2795                                                 break;
2796                                         }
2797                                 }
2798                                 fclose(hostf);
2799                                 break; /* no possibility of job file for "this client only" */
2800                         }
2801                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2802                                 log_err("fio: failed adding client %s\n", optarg);
2803                                 do_exit++;
2804                                 exit_val = 1;
2805                                 break;
2806                         }
2807                         /*
2808                          * If the next argument exists and isn't an option,
2809                          * assume it's a job file for this client only.
2810                          */
2811                         while (optind < argc) {
2812                                 if (!strncmp(argv[optind], "--", 2) ||
2813                                     !strncmp(argv[optind], "-", 1))
2814                                         break;
2815
2816                                 if (fio_client_add_ini_file(cur_client, argv[optind], false))
2817                                         break;
2818                                 optind++;
2819                         }
2820                         break;
2821                 case 'R':
2822                         did_arg = true;
2823                         if (fio_client_add_ini_file(cur_client, optarg, true)) {
2824                                 do_exit++;
2825                                 exit_val = 1;
2826                         }
2827                         break;
2828                 case 'T':
2829                         did_arg = true;
2830                         do_exit++;
2831                         exit_val = fio_monotonic_clocktest(1);
2832                         break;
2833                 case 'G':
2834                         did_arg = true;
2835                         do_exit++;
2836                         exit_val = fio_crctest(optarg);
2837                         break;
2838                 case 'M':
2839                         did_arg = true;
2840                         do_exit++;
2841                         exit_val = fio_memcpy_test(optarg);
2842                         break;
2843                 case 'L': {
2844                         long long val;
2845
2846                         if (check_str_time(optarg, &val, 1)) {
2847                                 log_err("fio: failed parsing time %s\n", optarg);
2848                                 do_exit++;
2849                                 exit_val = 1;
2850                                 break;
2851                         }
2852                         if (val < 1000) {
2853                                 log_err("fio: status interval too small\n");
2854                                 do_exit++;
2855                                 exit_val = 1;
2856                         }
2857                         status_interval = val / 1000;
2858                         break;
2859                         }
2860                 case 'W':
2861                         if (trigger_file)
2862                                 free(trigger_file);
2863                         trigger_file = strdup(optarg);
2864                         break;
2865                 case 'H':
2866                         if (trigger_cmd)
2867                                 free(trigger_cmd);
2868                         trigger_cmd = strdup(optarg);
2869                         break;
2870                 case 'J':
2871                         if (trigger_remote_cmd)
2872                                 free(trigger_remote_cmd);
2873                         trigger_remote_cmd = strdup(optarg);
2874                         break;
2875                 case 'K':
2876                         if (aux_path)
2877                                 free(aux_path);
2878                         aux_path = strdup(optarg);
2879                         break;
2880                 case 'B':
2881                         if (check_str_time(optarg, &trigger_timeout, 1)) {
2882                                 log_err("fio: failed parsing time %s\n", optarg);
2883                                 do_exit++;
2884                                 exit_val = 1;
2885                         }
2886                         trigger_timeout /= 1000000;
2887                         break;
2888
2889                 case 'A':
2890                         did_arg = true;
2891                         merge_blktrace_only = true;
2892                         break;
2893                 case '?':
2894                         log_err("%s: unrecognized option '%s'\n", argv[0],
2895                                                         argv[optind - 1]);
2896                         show_closest_option(argv[optind - 1]);
2897                         /* fall through */
2898                 default:
2899                         do_exit++;
2900                         exit_val = 1;
2901                         break;
2902                 }
2903                 if (do_exit)
2904                         break;
2905         }
2906
2907         if (do_exit && !(is_backend || nr_clients))
2908                 exit(exit_val);
2909
2910         if (nr_clients && fio_clients_connect())
2911                 exit(1);
2912
2913         if (is_backend && backend)
2914                 return fio_start_server(pid_file);
2915         else if (pid_file)
2916                 free(pid_file);
2917
2918         if (td) {
2919                 if (!ret) {
2920                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2921                         if (ret)
2922                                 exit(1);
2923                 }
2924         }
2925
2926         while (!ret && optind < argc) {
2927                 ini_idx++;
2928                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2929                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2930                 optind++;
2931         }
2932
2933 out_free:
2934         return ini_idx;
2935 }
2936
2937 int fio_init_options(void)
2938 {
2939         f_out = stdout;
2940         f_err = stderr;
2941
2942         fio_options_fill_optstring();
2943         fio_options_dup_and_init(l_opts);
2944
2945         atexit(free_shm);
2946
2947         if (fill_def_thread())
2948                 return 1;
2949
2950         return 0;
2951 }
2952
2953 extern int fio_check_options(struct thread_options *);
2954
2955 int parse_options(int argc, char *argv[])
2956 {
2957         const int type = FIO_CLIENT_TYPE_CLI;
2958         int job_files, i;
2959
2960         if (fio_init_options())
2961                 return 1;
2962         if (fio_test_cconv(&def_thread.o))
2963                 log_err("fio: failed internal cconv test\n");
2964
2965         job_files = parse_cmd_line(argc, argv, type);
2966
2967         if (job_files > 0) {
2968                 for (i = 0; i < job_files; i++) {
2969                         if (i && fill_def_thread())
2970                                 return 1;
2971                         if (nr_clients) {
2972                                 if (fio_clients_send_ini(ini_file[i]))
2973                                         return 1;
2974                                 free(ini_file[i]);
2975                         } else if (!is_backend) {
2976                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2977                                         return 1;
2978                                 free(ini_file[i]);
2979                         }
2980                 }
2981         } else if (nr_clients) {
2982                 if (fill_def_thread())
2983                         return 1;
2984                 if (fio_clients_send_ini(NULL))
2985                         return 1;
2986         }
2987
2988         free(ini_file);
2989         fio_options_free(&def_thread);
2990         filesetup_mem_free();
2991
2992         if (!thread_number) {
2993                 if (parse_dryrun())
2994                         return 0;
2995                 if (exec_profile)
2996                         return 0;
2997                 if (is_backend || nr_clients)
2998                         return 0;
2999                 if (did_arg)
3000                         return 0;
3001
3002                 log_err("No job(s) defined\n\n");
3003                 usage(argv[0]);
3004                 return 1;
3005         }
3006
3007         if (output_format & FIO_OUTPUT_NORMAL)
3008                 log_info("%s\n", fio_version_string);
3009
3010         return 0;
3011 }
3012
3013 void options_default_fill(struct thread_options *o)
3014 {
3015         memcpy(o, &def_thread.o, sizeof(*o));
3016 }
3017
3018 struct thread_data *get_global_options(void)
3019 {
3020         return &def_thread;
3021 }