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
  34 #include "oslib/getopt.h"
  35 #include "oslib/strcasestr.h"
  36
  37 #include "crc/test.h"
  38 #include "lib/pow2.h"
  39 #include "lib/memcpy.h"
  40
  41 const char fio_version_string[] = FIO_VERSION;
  42
  43 #define FIO_RANDSEED            (0xb1899bedUL)
  44
  45 static char **ini_file;
  46 static int max_jobs = FIO_MAX_JOBS;
  47 static int dump_cmdline;
  48 static int parse_only;
  49
  50 static struct thread_data def_thread;
  51 struct thread_data *threads = NULL;
  52 static char **job_sections;
  53 static int nr_job_sections;
  54
  55 int exitall_on_terminate = 0;
  56 int output_format = FIO_OUTPUT_NORMAL;
  57 int eta_print = FIO_ETA_AUTO;
  58 unsigned int eta_interval_msec = 1000;
  59 int eta_new_line = 0;
  60 FILE *f_out = NULL;
  61 FILE *f_err = NULL;
  62 char *exec_profile = NULL;
  63 int warnings_fatal = 0;
  64 int terse_version = 3;
  65 int is_backend = 0;
  66 int nr_clients = 0;
  67 int log_syslog = 0;
  68
  69 int write_bw_log = 0;
  70 int read_only = 0;
  71 int status_interval = 0;
  72
  73 char *trigger_file = NULL;
  74 long long trigger_timeout = 0;
  75 char *trigger_cmd = NULL;
  76 char *trigger_remote_cmd = NULL;
  77
  78 char *aux_path = NULL;
  79
  80 static int prev_group_jobs;
  81
  82 unsigned long fio_debug = 0;
  83 unsigned int fio_debug_jobno = -1;
  84 unsigned int *fio_debug_jobp = NULL;
  85 unsigned int *fio_warned = NULL;
  86
  87 static char cmd_optstr[256];
  88 static bool did_arg;
  89
  90 #define FIO_CLIENT_FLAG         (1 << 16)
  91
  92 /*
  93  * Command line options. These will contain the above, plus a few
  94  * extra that only pertain to fio itself and not jobs.
  95  */
  96 static struct option l_opts[FIO_NR_OPTIONS] = {
  97         {
  98                 .name           = (char *) "output",
  99                 .has_arg        = required_argument,
 100                 .val            = 'o' | FIO_CLIENT_FLAG,
 101         },
 102         {
 103                 .name           = (char *) "latency-log",
 104                 .has_arg        = required_argument,
 105                 .val            = 'l' | FIO_CLIENT_FLAG,
 106         },
 107         {
 108                 .name           = (char *) "bandwidth-log",
 109                 .has_arg        = no_argument,
 110                 .val            = 'b' | FIO_CLIENT_FLAG,
 111         },
 112         {
 113                 .name           = (char *) "minimal",
 114                 .has_arg        = no_argument,
 115                 .val            = 'm' | FIO_CLIENT_FLAG,
 116         },
 117         {
 118                 .name           = (char *) "output-format",
 119                 .has_arg        = required_argument,
 120                 .val            = 'F' | FIO_CLIENT_FLAG,
 121         },
 122         {
 123                 .name           = (char *) "append-terse",
 124                 .has_arg        = optional_argument,
 125                 .val            = 'f',
 126         },
 127         {
 128                 .name           = (char *) "version",
 129                 .has_arg        = no_argument,
 130                 .val            = 'v' | FIO_CLIENT_FLAG,
 131         },
 132         {
 133                 .name           = (char *) "help",
 134                 .has_arg        = no_argument,
 135                 .val            = 'h' | FIO_CLIENT_FLAG,
 136         },
 137         {
 138                 .name           = (char *) "cmdhelp",
 139                 .has_arg        = optional_argument,
 140                 .val            = 'c' | FIO_CLIENT_FLAG,
 141         },
 142         {
 143                 .name           = (char *) "enghelp",
 144                 .has_arg        = optional_argument,
 145                 .val            = 'i' | FIO_CLIENT_FLAG,
 146         },
 147         {
 148                 .name           = (char *) "showcmd",
 149                 .has_arg        = no_argument,
 150                 .val            = 's' | FIO_CLIENT_FLAG,
 151         },
 152         {
 153                 .name           = (char *) "readonly",
 154                 .has_arg        = no_argument,
 155                 .val            = 'r' | FIO_CLIENT_FLAG,
 156         },
 157         {
 158                 .name           = (char *) "eta",
 159                 .has_arg        = required_argument,
 160                 .val            = 'e' | FIO_CLIENT_FLAG,
 161         },
 162         {
 163                 .name           = (char *) "eta-interval",
 164                 .has_arg        = required_argument,
 165                 .val            = 'O' | FIO_CLIENT_FLAG,
 166         },
 167         {
 168                 .name           = (char *) "eta-newline",
 169                 .has_arg        = required_argument,
 170                 .val            = 'E' | FIO_CLIENT_FLAG,
 171         },
 172         {
 173                 .name           = (char *) "debug",
 174                 .has_arg        = required_argument,
 175                 .val            = 'd' | FIO_CLIENT_FLAG,
 176         },
 177         {
 178                 .name           = (char *) "parse-only",
 179                 .has_arg        = no_argument,
 180                 .val            = 'P' | FIO_CLIENT_FLAG,
 181         },
 182         {
 183                 .name           = (char *) "section",
 184                 .has_arg        = required_argument,
 185                 .val            = 'x' | FIO_CLIENT_FLAG,
 186         },
 187 #ifdef CONFIG_ZLIB
 188         {
 189                 .name           = (char *) "inflate-log",
 190                 .has_arg        = required_argument,
 191                 .val            = 'X' | FIO_CLIENT_FLAG,
 192         },
 193 #endif
 194         {
 195                 .name           = (char *) "alloc-size",
 196                 .has_arg        = required_argument,
 197                 .val            = 'a' | FIO_CLIENT_FLAG,
 198         },
 199         {
 200                 .name           = (char *) "profile",
 201                 .has_arg        = required_argument,
 202                 .val            = 'p' | FIO_CLIENT_FLAG,
 203         },
 204         {
 205                 .name           = (char *) "warnings-fatal",
 206                 .has_arg        = no_argument,
 207                 .val            = 'w' | FIO_CLIENT_FLAG,
 208         },
 209         {
 210                 .name           = (char *) "max-jobs",
 211                 .has_arg        = required_argument,
 212                 .val            = 'j' | FIO_CLIENT_FLAG,
 213         },
 214         {
 215                 .name           = (char *) "terse-version",
 216                 .has_arg        = required_argument,
 217                 .val            = 'V' | FIO_CLIENT_FLAG,
 218         },
 219         {
 220                 .name           = (char *) "server",
 221                 .has_arg        = optional_argument,
 222                 .val            = 'S',
 223         },
 224         {       .name           = (char *) "daemonize",
 225                 .has_arg        = required_argument,
 226                 .val            = 'D',
 227         },
 228         {
 229                 .name           = (char *) "client",
 230                 .has_arg        = required_argument,
 231                 .val            = 'C',
 232         },
 233         {
 234                 .name           = (char *) "remote-config",
 235                 .has_arg        = required_argument,
 236                 .val            = 'R',
 237         },
 238         {
 239                 .name           = (char *) "cpuclock-test",
 240                 .has_arg        = no_argument,
 241                 .val            = 'T',
 242         },
 243         {
 244                 .name           = (char *) "crctest",
 245                 .has_arg        = optional_argument,
 246                 .val            = 'G',
 247         },
 248         {
 249                 .name           = (char *) "memcpytest",
 250                 .has_arg        = optional_argument,
 251                 .val            = 'M',
 252         },
 253         {
 254                 .name           = (char *) "idle-prof",
 255                 .has_arg        = required_argument,
 256                 .val            = 'I',
 257         },
 258         {
 259                 .name           = (char *) "status-interval",
 260                 .has_arg        = required_argument,
 261                 .val            = 'L',
 262         },
 263         {
 264                 .name           = (char *) "trigger-file",
 265                 .has_arg        = required_argument,
 266                 .val            = 'W',
 267         },
 268         {
 269                 .name           = (char *) "trigger-timeout",
 270                 .has_arg        = required_argument,
 271                 .val            = 'B',
 272         },
 273         {
 274                 .name           = (char *) "trigger",
 275                 .has_arg        = required_argument,
 276                 .val            = 'H',
 277         },
 278         {
 279                 .name           = (char *) "trigger-remote",
 280                 .has_arg        = required_argument,
 281                 .val            = 'J',
 282         },
 283         {
 284                 .name           = (char *) "aux-path",
 285                 .has_arg        = required_argument,
 286                 .val            = 'K',
 287         },
 288         {
 289                 .name           = NULL,
 290         },
 291 };
 292
 293 void free_threads_shm(void)
 294 {
 295         if (threads) {
 296                 void *tp = threads;
 297 #ifndef CONFIG_NO_SHM
 298                 struct shmid_ds sbuf;
 299
 300                 threads = NULL;
 301                 shmdt(tp);
 302                 shmctl(shm_id, IPC_RMID, &sbuf);
 303                 shm_id = -1;
 304 #else
 305                 threads = NULL;
 306                 free(tp);
 307 #endif
 308         }
 309 }
 310
 311 static void free_shm(void)
 312 {
 313         if (threads) {
 314                 flow_exit();
 315                 fio_debug_jobp = NULL;
 316                 fio_warned = NULL;
 317                 free_threads_shm();
 318         }
 319
 320         free(trigger_file);
 321         free(trigger_cmd);
 322         free(trigger_remote_cmd);
 323         trigger_file = trigger_cmd = trigger_remote_cmd = NULL;
 324
 325         options_free(fio_options, &def_thread.o);
 326         fio_filelock_exit();
 327         file_hash_exit();
 328         scleanup();
 329 }
 330
 331 /*
 332  * The thread area is shared between the main process and the job
 333  * threads/processes. So setup a shared memory segment that will hold
 334  * all the job info. We use the end of the region for keeping track of
 335  * open files across jobs, for file sharing.
 336  */
 337 static int setup_thread_area(void)
 338 {
 339         int i;
 340
 341         if (threads)
 342                 return 0;
 343
 344         /*
 345          * 1024 is too much on some machines, scale max_jobs if
 346          * we get a failure that looks like too large a shm segment
 347          */
 348         do {
 349                 size_t size = max_jobs * sizeof(struct thread_data);
 350
 351                 size += 2 * sizeof(unsigned int);
 352
 353 #ifndef CONFIG_NO_SHM
 354                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 355                 if (shm_id != -1)
 356                         break;
 357                 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
 358                         perror("shmget");
 359                         break;
 360                 }
 361 #else
 362                 threads = malloc(size);
 363                 if (threads)
 364                         break;
 365 #endif
 366
 367                 max_jobs >>= 1;
 368         } while (max_jobs);
 369
 370 #ifndef CONFIG_NO_SHM
 371         if (shm_id == -1)
 372                 return 1;
 373
 374         threads = shmat(shm_id, NULL, 0);
 375         if (threads == (void *) -1) {
 376                 perror("shmat");
 377                 return 1;
 378         }
 379         if (shm_attach_to_open_removed())
 380                 shmctl(shm_id, IPC_RMID, NULL);
 381 #endif
 382
 383         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 384         for (i = 0; i < max_jobs; i++)
 385                 DRD_IGNORE_VAR(threads[i]);
 386         fio_debug_jobp = (unsigned int *)(threads + max_jobs);
 387         *fio_debug_jobp = -1;
 388         fio_warned = fio_debug_jobp + 1;
 389         *fio_warned = 0;
 390
 391         flow_init();
 392
 393         return 0;
 394 }
 395
 396 static void dump_print_option(struct print_option *p)
 397 {
 398         const char *delim;
 399
 400         if (!strcmp("description", p->name))
 401                 delim = "\"";
 402         else
 403                 delim = "";
 404
 405         log_info("--%s%s", p->name, p->value ? "" : " ");
 406         if (p->value)
 407                 log_info("=%s%s%s ", delim, p->value, delim);
 408 }
 409
 410 static void dump_opt_list(struct thread_data *td)
 411 {
 412         struct flist_head *entry;
 413         struct print_option *p;
 414
 415         if (flist_empty(&td->opt_list))
 416                 return;
 417
 418         flist_for_each(entry, &td->opt_list) {
 419                 p = flist_entry(entry, struct print_option, list);
 420                 dump_print_option(p);
 421         }
 422 }
 423
 424 static void fio_dump_options_free(struct thread_data *td)
 425 {
 426         while (!flist_empty(&td->opt_list)) {
 427                 struct print_option *p;
 428
 429                 p = flist_first_entry(&td->opt_list, struct print_option, list);
 430                 flist_del_init(&p->list);
 431                 free(p->name);
 432                 free(p->value);
 433                 free(p);
 434         }
 435 }
 436
 437 static void copy_opt_list(struct thread_data *dst, struct thread_data *src)
 438 {
 439         struct flist_head *entry;
 440
 441         if (flist_empty(&src->opt_list))
 442                 return;
 443
 444         flist_for_each(entry, &src->opt_list) {
 445                 struct print_option *srcp, *dstp;
 446
 447                 srcp = flist_entry(entry, struct print_option, list);
 448                 dstp = malloc(sizeof(*dstp));
 449                 dstp->name = strdup(srcp->name);
 450                 if (srcp->value)
 451                         dstp->value = strdup(srcp->value);
 452                 else
 453                         dstp->value = NULL;
 454                 flist_add_tail(&dstp->list, &dst->opt_list);
 455         }
 456 }
 457
 458 /*
 459  * Return a free job structure.
 460  */
 461 static struct thread_data *get_new_job(bool global, struct thread_data *parent,
 462                                        bool preserve_eo, const char *jobname)
 463 {
 464         struct thread_data *td;
 465
 466         if (global)
 467                 return &def_thread;
 468         if (setup_thread_area()) {
 469                 log_err("error: failed to setup shm segment\n");
 470                 return NULL;
 471         }
 472         if (thread_number >= max_jobs) {
 473                 log_err("error: maximum number of jobs (%d) reached.\n",
 474                                 max_jobs);
 475                 return NULL;
 476         }
 477
 478         td = &threads[thread_number++];
 479         *td = *parent;
 480
 481         INIT_FLIST_HEAD(&td->opt_list);
 482         if (parent != &def_thread)
 483                 copy_opt_list(td, parent);
 484
 485         td->io_ops = NULL;
 486         td->io_ops_init = 0;
 487         if (!preserve_eo)
 488                 td->eo = NULL;
 489
 490         td->o.uid = td->o.gid = -1U;
 491
 492         dup_files(td, parent);
 493         fio_options_mem_dupe(td);
 494
 495         profile_add_hooks(td);
 496
 497         td->thread_number = thread_number;
 498         td->subjob_number = 0;
 499
 500         if (jobname)
 501                 td->o.name = strdup(jobname);
 502
 503         if (!parent->o.group_reporting || parent == &def_thread)
 504                 stat_number++;
 505
 506         return td;
 507 }
 508
 509 static void put_job(struct thread_data *td)
 510 {
 511         if (td == &def_thread)
 512                 return;
 513
 514         profile_td_exit(td);
 515         flow_exit_job(td);
 516
 517         if (td->error)
 518                 log_info("fio: %s\n", td->verror);
 519
 520         fio_options_free(td);
 521         fio_dump_options_free(td);
 522         if (td->io_ops)
 523                 free_ioengine(td);
 524
 525         if (td->o.name)
 526                 free(td->o.name);
 527
 528         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 529         thread_number--;
 530 }
 531
 532 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 533 {
 534         unsigned int bs = td->o.min_bs[ddir];
 535
 536         assert(ddir_rw(ddir));
 537
 538         if (td->o.rate[ddir])
 539                 td->rate_bps[ddir] = td->o.rate[ddir];
 540         else
 541                 td->rate_bps[ddir] = (uint64_t) td->o.rate_iops[ddir] * bs;
 542
 543         if (!td->rate_bps[ddir]) {
 544                 log_err("rate lower than supported\n");
 545                 return -1;
 546         }
 547
 548         td->rate_next_io_time[ddir] = 0;
 549         td->rate_io_issue_bytes[ddir] = 0;
 550         td->last_usec[ddir] = 0;
 551         return 0;
 552 }
 553
 554 static int setup_rate(struct thread_data *td)
 555 {
 556         int ret = 0;
 557
 558         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
 559                 ret = __setup_rate(td, DDIR_READ);
 560         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
 561                 ret |= __setup_rate(td, DDIR_WRITE);
 562         if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
 563                 ret |= __setup_rate(td, DDIR_TRIM);
 564
 565         return ret;
 566 }
 567
 568 static int fixed_block_size(struct thread_options *o)
 569 {
 570         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 571                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 572                 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
 573                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
 574                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
 575 }
 576
 577 /*
 578  * <3 Johannes
 579  */
 580 static unsigned int gcd(unsigned int m, unsigned int n)
 581 {
 582         if (!n)
 583                 return m;
 584
 585         return gcd(n, m % n);
 586 }
 587
 588 /*
 589  * Lazy way of fixing up options that depend on each other. We could also
 590  * define option callback handlers, but this is easier.
 591  */
 592 static int fixup_options(struct thread_data *td)
 593 {
 594         struct thread_options *o = &td->o;
 595         int ret = 0;
 596
 597         if (read_only && (td_write(td) || td_trim(td))) {
 598                 log_err("fio: trim and write operations are not allowed"
 599                          " with the --readonly parameter.\n");
 600                 ret |= 1;
 601         }
 602
 603 #ifndef CONFIG_PSHARED
 604         if (!o->use_thread) {
 605                 log_info("fio: this platform does not support process shared"
 606                          " mutexes, forcing use of threads. Use the 'thread'"
 607                          " option to get rid of this warning.\n");
 608                 o->use_thread = 1;
 609                 ret |= warnings_fatal;
 610         }
 611 #endif
 612
 613         if (o->write_iolog_file && o->read_iolog_file) {
 614                 log_err("fio: read iolog overrides write_iolog\n");
 615                 free(o->write_iolog_file);
 616                 o->write_iolog_file = NULL;
 617                 ret |= warnings_fatal;
 618         }
 619
 620         /*
 621          * only really works with 1 file
 622          */
 623         if (o->zone_size && o->open_files > 1)
 624                 o->zone_size = 0;
 625
 626         /*
 627          * If zone_range isn't specified, backward compatibility dictates it
 628          * should be made equal to zone_size.
 629          */
 630         if (o->zone_size && !o->zone_range)
 631                 o->zone_range = o->zone_size;
 632
 633         /*
 634          * Reads can do overwrites, we always need to pre-create the file
 635          */
 636         if (td_read(td))
 637                 o->overwrite = 1;
 638
 639         if (!o->min_bs[DDIR_READ])
 640                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
 641         if (!o->max_bs[DDIR_READ])
 642                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 643         if (!o->min_bs[DDIR_WRITE])
 644                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 645         if (!o->max_bs[DDIR_WRITE])
 646                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 647         if (!o->min_bs[DDIR_TRIM])
 648                 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 649         if (!o->max_bs[DDIR_TRIM])
 650                 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 651
 652         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 653         o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
 654
 655         /*
 656          * For random IO, allow blockalign offset other than min_bs.
 657          */
 658         if (!o->ba[DDIR_READ] || !td_random(td))
 659                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
 660         if (!o->ba[DDIR_WRITE] || !td_random(td))
 661                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
 662         if (!o->ba[DDIR_TRIM] || !td_random(td))
 663                 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
 664
 665         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 666             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
 667             o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
 668             !o->norandommap) {
 669                 log_err("fio: Any use of blockalign= turns off randommap\n");
 670                 o->norandommap = 1;
 671                 ret |= warnings_fatal;
 672         }
 673
 674         if (!o->file_size_high)
 675                 o->file_size_high = o->file_size_low;
 676
 677         if (o->start_delay_high) {
 678                 if (!o->start_delay_orig)
 679                         o->start_delay_orig = o->start_delay;
 680                 o->start_delay = rand_between(&td->delay_state,
 681                                                 o->start_delay_orig,
 682                                                 o->start_delay_high);
 683         }
 684
 685         if (o->norandommap && o->verify != VERIFY_NONE
 686             && !fixed_block_size(o))  {
 687                 log_err("fio: norandommap given for variable block sizes, "
 688                         "verify limited\n");
 689                 ret |= warnings_fatal;
 690         }
 691         if (o->bs_unaligned && (o->odirect || td_ioengine_flagged(td, FIO_RAWIO)))
 692                 log_err("fio: bs_unaligned may not work with raw io\n");
 693
 694         /*
 695          * thinktime_spin must be less than thinktime
 696          */
 697         if (o->thinktime_spin > o->thinktime)
 698                 o->thinktime_spin = o->thinktime;
 699
 700         /*
 701          * The low water mark cannot be bigger than the iodepth
 702          */
 703         if (o->iodepth_low > o->iodepth || !o->iodepth_low)
 704                 o->iodepth_low = o->iodepth;
 705
 706         /*
 707          * If batch number isn't set, default to the same as iodepth
 708          */
 709         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 710                 o->iodepth_batch = o->iodepth;
 711
 712         /*
 713          * If max batch complete number isn't set or set incorrectly,
 714          * default to the same as iodepth_batch_complete_min
 715          */
 716         if (o->iodepth_batch_complete_min > o->iodepth_batch_complete_max)
 717                 o->iodepth_batch_complete_max = o->iodepth_batch_complete_min;
 718
 719         /*
 720          * There's no need to check for in-flight overlapping IOs if the job
 721          * isn't changing data or the maximum iodepth is guaranteed to be 1
 722          */
 723         if (o->serialize_overlap && !(td->flags & TD_F_READ_IOLOG) &&
 724             (!(td_write(td) || td_trim(td)) || o->iodepth == 1))
 725                 o->serialize_overlap = 0;
 726         /*
 727          * Currently can't check for overlaps in offload mode
 728          */
 729         if (o->serialize_overlap && o->io_submit_mode == IO_MODE_OFFLOAD) {
 730                 log_err("fio: checking for in-flight overlaps when the "
 731                         "io_submit_mode is offload is not supported\n");
 732                 o->serialize_overlap = 0;
 733                 ret |= warnings_fatal;
 734         }
 735
 736         if (o->nr_files > td->files_index)
 737                 o->nr_files = td->files_index;
 738
 739         if (o->open_files > o->nr_files || !o->open_files)
 740                 o->open_files = o->nr_files;
 741
 742         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
 743             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
 744             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 745             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 746                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 747                 ret |= 1;
 748         }
 749         if ((o->rate[DDIR_READ] && (o->rate[DDIR_READ] < o->ratemin[DDIR_READ])) ||
 750             (o->rate[DDIR_WRITE] && (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE])) ||
 751             (o->rate[DDIR_TRIM] && (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM])) ||
 752             (o->rate_iops[DDIR_READ] && (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ])) ||
 753             (o->rate_iops[DDIR_WRITE] && (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE])) ||
 754             (o->rate_iops[DDIR_TRIM] && (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM]))) {
 755                 log_err("fio: minimum rate exceeds rate\n");
 756                 ret |= 1;
 757         }
 758
 759         if (!o->timeout && o->time_based) {
 760                 log_err("fio: time_based requires a runtime/timeout setting\n");
 761                 o->time_based = 0;
 762                 ret |= warnings_fatal;
 763         }
 764
 765         if (o->fill_device && !o->size)
 766                 o->size = -1ULL;
 767
 768         if (o->verify != VERIFY_NONE) {
 769                 if (td_write(td) && o->do_verify && o->numjobs > 1 &&
 770                     (o->filename ||
 771                      !(o->unique_filename &&
 772                        strstr(o->filename_format, "$jobname") &&
 773                        strstr(o->filename_format, "$jobnum") &&
 774                        strstr(o->filename_format, "$filenum")))) {
 775                         log_info("fio: multiple writers may overwrite blocks "
 776                                 "that belong to other jobs. This can cause "
 777                                 "verification failures.\n");
 778                         ret |= warnings_fatal;
 779                 }
 780
 781                 /*
 782                  * Warn if verification is requested but no verification of any
 783                  * kind can be started due to time constraints
 784                  */
 785                 if (td_write(td) && o->do_verify && o->timeout &&
 786                     o->time_based && !td_read(td) && !o->verify_backlog) {
 787                         log_info("fio: verification read phase will never "
 788                                  "start because write phase uses all of "
 789                                  "runtime\n");
 790                         ret |= warnings_fatal;
 791                 }
 792
 793                 if (!fio_option_is_set(o, refill_buffers))
 794                         o->refill_buffers = 1;
 795
 796                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 797                     !o->verify_interval)
 798                         o->verify_interval = o->min_bs[DDIR_WRITE];
 799
 800                 /*
 801                  * Verify interval must be smaller or equal to the
 802                  * write size.
 803                  */
 804                 if (o->verify_interval > o->min_bs[DDIR_WRITE])
 805                         o->verify_interval = o->min_bs[DDIR_WRITE];
 806                 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
 807                         o->verify_interval = o->min_bs[DDIR_READ];
 808
 809                 /*
 810                  * Verify interval must be a factor of both min and max
 811                  * write size
 812                  */
 813                 if (!o->verify_interval ||
 814                     (o->min_bs[DDIR_WRITE] % o->verify_interval) ||
 815                     (o->max_bs[DDIR_WRITE] % o->verify_interval))
 816                         o->verify_interval = gcd(o->min_bs[DDIR_WRITE],
 817                                                         o->max_bs[DDIR_WRITE]);
 818         }
 819
 820         if (o->pre_read) {
 821                 if (o->invalidate_cache)
 822                         o->invalidate_cache = 0;
 823                 if (td_ioengine_flagged(td, FIO_PIPEIO)) {
 824                         log_info("fio: cannot pre-read files with an IO engine"
 825                                  " that isn't seekable. Pre-read disabled.\n");
 826                         ret |= warnings_fatal;
 827                 }
 828         }
 829
 830         if (o->unit_base == N2S_NONE) {
 831                 if (td_ioengine_flagged(td, FIO_BIT_BASED))
 832                         o->unit_base = N2S_BITPERSEC;
 833                 else
 834                         o->unit_base = N2S_BYTEPERSEC;
 835         }
 836
 837 #ifndef FIO_HAVE_ANY_FALLOCATE
 838         /* Platform doesn't support any fallocate so force it to none */
 839         o->fallocate_mode = FIO_FALLOCATE_NONE;
 840 #endif
 841
 842 #ifndef CONFIG_FDATASYNC
 843         if (o->fdatasync_blocks) {
 844                 log_info("fio: this platform does not support fdatasync()"
 845                          " falling back to using fsync().  Use the 'fsync'"
 846                          " option instead of 'fdatasync' to get rid of"
 847                          " this warning\n");
 848                 o->fsync_blocks = o->fdatasync_blocks;
 849                 o->fdatasync_blocks = 0;
 850                 ret |= warnings_fatal;
 851         }
 852 #endif
 853
 854 #ifdef WIN32
 855         /*
 856          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 857          * so fail if we're passed those flags
 858          */
 859         if (td_ioengine_flagged(td, FIO_SYNCIO) && (o->odirect || o->sync_io)) {
 860                 log_err("fio: Windows does not support direct or non-buffered io with"
 861                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 862                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 863                 ret |= 1;
 864         }
 865 #endif
 866
 867         /*
 868          * For fully compressible data, just zero them at init time.
 869          * It's faster than repeatedly filling it. For non-zero
 870          * compression, we should have refill_buffers set. Set it, unless
 871          * the job file already changed it.
 872          */
 873         if (o->compress_percentage) {
 874                 if (o->compress_percentage == 100) {
 875                         o->zero_buffers = 1;
 876                         o->compress_percentage = 0;
 877                 } else if (!fio_option_is_set(o, refill_buffers)) {
 878                         o->refill_buffers = 1;
 879                         td->flags |= TD_F_REFILL_BUFFERS;
 880                 }
 881         }
 882
 883         /*
 884          * Using a non-uniform random distribution excludes usage of
 885          * a random map
 886          */
 887         if (o->random_distribution != FIO_RAND_DIST_RANDOM)
 888                 o->norandommap = 1;
 889
 890         /*
 891          * If size is set but less than the min block size, complain
 892          */
 893         if (o->size && o->size < td_min_bs(td)) {
 894                 log_err("fio: size too small, must not be less than minimum block size: %llu < %u\n",
 895                         (unsigned long long) o->size, td_min_bs(td));
 896                 ret |= 1;
 897         }
 898
 899         /*
 900          * O_ATOMIC implies O_DIRECT
 901          */
 902         if (o->oatomic)
 903                 o->odirect = 1;
 904
 905         /*
 906          * If randseed is set, that overrides randrepeat
 907          */
 908         if (fio_option_is_set(o, rand_seed))
 909                 o->rand_repeatable = 0;
 910
 911         if (td_ioengine_flagged(td, FIO_NOEXTEND) && o->file_append) {
 912                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
 913                 ret |= 1;
 914         }
 915
 916         if (fio_option_is_set(o, gtod_cpu)) {
 917                 fio_gtod_init();
 918                 fio_gtod_set_cpu(o->gtod_cpu);
 919                 fio_gtod_offload = 1;
 920         }
 921
 922         td->loops = o->loops;
 923         if (!td->loops)
 924                 td->loops = 1;
 925
 926         if (o->block_error_hist && o->nr_files != 1) {
 927                 log_err("fio: block error histogram only available "
 928                         "with a single file per job, but %d files "
 929                         "provided\n", o->nr_files);
 930                 ret |= 1;
 931         }
 932
 933         if (fio_option_is_set(o, clat_percentiles) &&
 934             !fio_option_is_set(o, lat_percentiles)) {
 935                 o->lat_percentiles = !o->clat_percentiles;
 936         } else if (fio_option_is_set(o, lat_percentiles) &&
 937                    !fio_option_is_set(o, clat_percentiles)) {
 938                 o->clat_percentiles = !o->lat_percentiles;
 939         } else if (fio_option_is_set(o, lat_percentiles) &&
 940                    fio_option_is_set(o, clat_percentiles) &&
 941                    o->lat_percentiles && o->clat_percentiles) {
 942                 log_err("fio: lat_percentiles and clat_percentiles are "
 943                         "mutually exclusive\n");
 944                 ret |= 1;
 945         }
 946
 947         if (o->disable_lat)
 948                 o->lat_percentiles = 0;
 949         if (o->disable_clat)
 950                 o->clat_percentiles = 0;
 951
 952         /*
 953          * Fix these up to be nsec internally
 954          */
 955         o->max_latency *= 1000ULL;
 956         o->latency_target *= 1000ULL;
 957         o->latency_window *= 1000ULL;
 958
 959         return ret;
 960 }
 961
 962 static void init_rand_file_service(struct thread_data *td)
 963 {
 964         unsigned long nranges = td->o.nr_files << FIO_FSERVICE_SHIFT;
 965         const unsigned int seed = td->rand_seeds[FIO_RAND_FILE_OFF];
 966
 967         if (td->o.file_service_type == FIO_FSERVICE_ZIPF) {
 968                 zipf_init(&td->next_file_zipf, nranges, td->zipf_theta, seed);
 969                 zipf_disable_hash(&td->next_file_zipf);
 970         } else if (td->o.file_service_type == FIO_FSERVICE_PARETO) {
 971                 pareto_init(&td->next_file_zipf, nranges, td->pareto_h, seed);
 972                 zipf_disable_hash(&td->next_file_zipf);
 973         } else if (td->o.file_service_type == FIO_FSERVICE_GAUSS) {
 974                 gauss_init(&td->next_file_gauss, nranges, td->gauss_dev, seed);
 975                 gauss_disable_hash(&td->next_file_gauss);
 976         }
 977 }
 978
 979 void td_fill_verify_state_seed(struct thread_data *td)
 980 {
 981         bool use64;
 982
 983         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
 984                 use64 = true;
 985         else
 986                 use64 = false;
 987
 988         init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF],
 989                 use64);
 990 }
 991
 992 static void td_fill_rand_seeds_internal(struct thread_data *td, bool use64)
 993 {
 994         unsigned int read_seed = td->rand_seeds[FIO_RAND_BS_OFF];
 995         unsigned int write_seed = td->rand_seeds[FIO_RAND_BS1_OFF];
 996         unsigned int trim_seed = td->rand_seeds[FIO_RAND_BS2_OFF];
 997         int i;
 998
 999         /*
1000          * trimwrite is special in that we need to generate the same
1001          * offsets to get the "write after trim" effect. If we are
1002          * using bssplit to set buffer length distributions, ensure that
1003          * we seed the trim and write generators identically. Ditto for
1004          * verify, read and writes must have the same seed, if we are doing
1005          * read verify.
1006          */
1007         if (td->o.verify != VERIFY_NONE)
1008                 write_seed = read_seed;
1009         if (td_trimwrite(td))
1010                 trim_seed = write_seed;
1011         init_rand_seed(&td->bsrange_state[DDIR_READ], read_seed, use64);
1012         init_rand_seed(&td->bsrange_state[DDIR_WRITE], write_seed, use64);
1013         init_rand_seed(&td->bsrange_state[DDIR_TRIM], trim_seed, use64);
1014
1015         td_fill_verify_state_seed(td);
1016         init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], false);
1017
1018         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
1019                 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF], use64);
1020         else if (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM)
1021                 init_rand_file_service(td);
1022
1023         init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], use64);
1024         init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF], use64);
1025         init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY], use64);
1026         init_rand_seed(&td->poisson_state[0], td->rand_seeds[FIO_RAND_POISSON_OFF], 0);
1027         init_rand_seed(&td->poisson_state[1], td->rand_seeds[FIO_RAND_POISSON2_OFF], 0);
1028         init_rand_seed(&td->poisson_state[2], td->rand_seeds[FIO_RAND_POISSON3_OFF], 0);
1029         init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF], false);
1030         init_rand_seed(&td->zone_state, td->rand_seeds[FIO_RAND_ZONE_OFF], false);
1031
1032         if (!td_random(td))
1033                 return;
1034
1035         if (td->o.rand_repeatable)
1036                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
1037
1038         init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF], use64);
1039
1040         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1041                 struct frand_state *s = &td->seq_rand_state[i];
1042
1043                 init_rand_seed(s, td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], false);
1044         }
1045 }
1046
1047 void td_fill_rand_seeds(struct thread_data *td)
1048 {
1049         bool use64;
1050
1051         if (td->o.allrand_repeatable) {
1052                 unsigned int i;
1053
1054                 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
1055                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
1056                                 + i;
1057         }
1058
1059         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
1060                 use64 = true;
1061         else
1062                 use64 = false;
1063
1064         td_fill_rand_seeds_internal(td, use64);
1065
1066         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF], use64);
1067         frand_copy(&td->buf_state_prev, &td->buf_state);
1068 }
1069
1070 /*
1071  * Initializes the ioengine configured for a job, if it has not been done so
1072  * already.
1073  */
1074 int ioengine_load(struct thread_data *td)
1075 {
1076         if (!td->o.ioengine) {
1077                 log_err("fio: internal fault, no IO engine specified\n");
1078                 return 1;
1079         }
1080
1081         if (td->io_ops) {
1082                 struct ioengine_ops *ops;
1083                 void *dlhandle;
1084
1085                 /* An engine is loaded, but the requested ioengine
1086                  * may have changed.
1087                  */
1088                 if (!strcmp(td->io_ops->name, td->o.ioengine)) {
1089                         /* The right engine is already loaded */
1090                         return 0;
1091                 }
1092
1093                 /*
1094                  * Name of file and engine may be different, load ops
1095                  * for this name and see if they match. If they do, then
1096                  * the engine is unchanged.
1097                  */
1098                 dlhandle = td->io_ops_dlhandle;
1099                 ops = load_ioengine(td);
1100                 if (ops == td->io_ops && dlhandle == td->io_ops_dlhandle) {
1101                         if (dlhandle)
1102                                 dlclose(dlhandle);
1103                         return 0;
1104                 }
1105
1106                 if (dlhandle && dlhandle != td->io_ops_dlhandle)
1107                         dlclose(dlhandle);
1108
1109                 /* Unload the old engine. */
1110                 free_ioengine(td);
1111         }
1112
1113         td->io_ops = load_ioengine(td);
1114         if (!td->io_ops) {
1115                 log_err("fio: failed to load engine\n");
1116                 return 1;
1117         }
1118
1119         if (td->io_ops->option_struct_size && td->io_ops->options) {
1120                 /*
1121                  * In cases where td->eo is set, clone it for a child thread.
1122                  * This requires that the parent thread has the same ioengine,
1123                  * but that requirement must be enforced by the code which
1124                  * cloned the thread.
1125                  */
1126                 void *origeo = td->eo;
1127                 /*
1128                  * Otherwise use the default thread options.
1129                  */
1130                 if (!origeo && td != &def_thread && def_thread.eo &&
1131                     def_thread.io_ops->options == td->io_ops->options)
1132                         origeo = def_thread.eo;
1133
1134                 options_init(td->io_ops->options);
1135                 td->eo = malloc(td->io_ops->option_struct_size);
1136                 /*
1137                  * Use the default thread as an option template if this uses the
1138                  * same options structure and there are non-default options
1139                  * used.
1140                  */
1141                 if (origeo) {
1142                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
1143                         options_mem_dupe(td->io_ops->options, td->eo);
1144                 } else {
1145                         memset(td->eo, 0, td->io_ops->option_struct_size);
1146                         fill_default_options(td->eo, td->io_ops->options);
1147                 }
1148                 *(struct thread_data **)td->eo = td;
1149         }
1150
1151         if (td->o.odirect)
1152                 td->io_ops->flags |= FIO_RAWIO;
1153
1154         td_set_ioengine_flags(td);
1155         return 0;
1156 }
1157
1158 static void init_flags(struct thread_data *td)
1159 {
1160         struct thread_options *o = &td->o;
1161         int i;
1162
1163         if (o->verify_backlog)
1164                 td->flags |= TD_F_VER_BACKLOG;
1165         if (o->trim_backlog)
1166                 td->flags |= TD_F_TRIM_BACKLOG;
1167         if (o->read_iolog_file)
1168                 td->flags |= TD_F_READ_IOLOG;
1169         if (o->refill_buffers)
1170                 td->flags |= TD_F_REFILL_BUFFERS;
1171         /*
1172          * Always scramble buffers if asked to
1173          */
1174         if (o->scramble_buffers && fio_option_is_set(o, scramble_buffers))
1175                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1176         /*
1177          * But also scramble buffers, unless we were explicitly asked
1178          * to zero them.
1179          */
1180         if (o->scramble_buffers && !(o->zero_buffers &&
1181             fio_option_is_set(o, zero_buffers)))
1182                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1183         if (o->verify != VERIFY_NONE)
1184                 td->flags |= TD_F_DO_VERIFY;
1185
1186         if (o->verify_async || o->io_submit_mode == IO_MODE_OFFLOAD)
1187                 td->flags |= TD_F_NEED_LOCK;
1188
1189         if (o->mem_type == MEM_CUDA_MALLOC)
1190                 td->flags &= ~TD_F_SCRAMBLE_BUFFERS;
1191
1192         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1193                 if (option_check_rate(td, i)) {
1194                         td->flags |= TD_F_CHECK_RATE;
1195                         break;
1196                 }
1197         }
1198 }
1199
1200 static int setup_random_seeds(struct thread_data *td)
1201 {
1202         unsigned long seed;
1203         unsigned int i;
1204
1205         if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed)) {
1206                 int ret = init_random_seeds(td->rand_seeds, sizeof(td->rand_seeds));
1207                 if (!ret)
1208                         td_fill_rand_seeds(td);
1209                 return ret;
1210         }
1211
1212         seed = td->o.rand_seed;
1213         for (i = 0; i < 4; i++)
1214                 seed *= 0x9e370001UL;
1215
1216         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
1217                 td->rand_seeds[i] = seed * td->thread_number + i;
1218                 seed *= 0x9e370001UL;
1219         }
1220
1221         td_fill_rand_seeds(td);
1222         return 0;
1223 }
1224
1225 enum {
1226         FPRE_NONE = 0,
1227         FPRE_JOBNAME,
1228         FPRE_JOBNUM,
1229         FPRE_FILENUM
1230 };
1231
1232 static struct fpre_keyword {
1233         const char *keyword;
1234         size_t strlen;
1235         int key;
1236 } fpre_keywords[] = {
1237         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
1238         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
1239         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
1240         { .keyword = NULL, },
1241         };
1242
1243 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
1244                            const char *jobname, int jobnum, int filenum)
1245 {
1246         struct fpre_keyword *f;
1247         char copy[PATH_MAX];
1248         size_t dst_left = PATH_MAX - 1;
1249
1250         if (!o->filename_format || !strlen(o->filename_format)) {
1251                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
1252                 return buf;
1253         }
1254
1255         for (f = &fpre_keywords[0]; f->keyword; f++)
1256                 f->strlen = strlen(f->keyword);
1257
1258         buf[buf_size - 1] = '\0';
1259         strncpy(buf, o->filename_format, buf_size - 1);
1260
1261         memset(copy, 0, sizeof(copy));
1262         for (f = &fpre_keywords[0]; f->keyword; f++) {
1263                 do {
1264                         size_t pre_len, post_start = 0;
1265                         char *str, *dst = copy;
1266
1267                         str = strcasestr(buf, f->keyword);
1268                         if (!str)
1269                                 break;
1270
1271                         pre_len = str - buf;
1272                         if (strlen(str) != f->strlen)
1273                                 post_start = pre_len + f->strlen;
1274
1275                         if (pre_len) {
1276                                 strncpy(dst, buf, pre_len);
1277                                 dst += pre_len;
1278                                 dst_left -= pre_len;
1279                         }
1280
1281                         switch (f->key) {
1282                         case FPRE_JOBNAME: {
1283                                 int ret;
1284
1285                                 ret = snprintf(dst, dst_left, "%s", jobname);
1286                                 if (ret < 0)
1287                                         break;
1288                                 else if (ret > dst_left) {
1289                                         log_err("fio: truncated filename\n");
1290                                         dst += dst_left;
1291                                         dst_left = 0;
1292                                 } else {
1293                                         dst += ret;
1294                                         dst_left -= ret;
1295                                 }
1296                                 break;
1297                                 }
1298                         case FPRE_JOBNUM: {
1299                                 int ret;
1300
1301                                 ret = snprintf(dst, dst_left, "%d", jobnum);
1302                                 if (ret < 0)
1303                                         break;
1304                                 else if (ret > dst_left) {
1305                                         log_err("fio: truncated filename\n");
1306                                         dst += dst_left;
1307                                         dst_left = 0;
1308                                 } else {
1309                                         dst += ret;
1310                                         dst_left -= ret;
1311                                 }
1312                                 break;
1313                                 }
1314                         case FPRE_FILENUM: {
1315                                 int ret;
1316
1317                                 ret = snprintf(dst, dst_left, "%d", filenum);
1318                                 if (ret < 0)
1319                                         break;
1320                                 else if (ret > dst_left) {
1321                                         log_err("fio: truncated filename\n");
1322                                         dst += dst_left;
1323                                         dst_left = 0;
1324                                 } else {
1325                                         dst += ret;
1326                                         dst_left -= ret;
1327                                 }
1328                                 break;
1329                                 }
1330                         default:
1331                                 assert(0);
1332                                 break;
1333                         }
1334
1335                         if (post_start)
1336                                 strncpy(dst, buf + post_start, dst_left);
1337
1338                         strncpy(buf, copy, buf_size - 1);
1339                 } while (1);
1340         }
1341
1342         return buf;
1343 }
1344
1345 bool parse_dryrun(void)
1346 {
1347         return dump_cmdline || parse_only;
1348 }
1349
1350 static void gen_log_name(char *name, size_t size, const char *logtype,
1351                          const char *logname, unsigned int num,
1352                          const char *suf, int per_job)
1353 {
1354         if (per_job)
1355                 snprintf(name, size, "%s_%s.%d.%s", logname, logtype, num, suf);
1356         else
1357                 snprintf(name, size, "%s_%s.%s", logname, logtype, suf);
1358 }
1359
1360 static int check_waitees(char *waitee)
1361 {
1362         struct thread_data *td;
1363         int i, ret = 0;
1364
1365         for_each_td(td, i) {
1366                 if (td->subjob_number)
1367                         continue;
1368
1369                 ret += !strcmp(td->o.name, waitee);
1370         }
1371
1372         return ret;
1373 }
1374
1375 static bool wait_for_ok(const char *jobname, struct thread_options *o)
1376 {
1377         int nw;
1378
1379         if (!o->wait_for)
1380                 return true;
1381
1382         if (!strcmp(jobname, o->wait_for)) {
1383                 log_err("%s: a job cannot wait for itself (wait_for=%s).\n",
1384                                 jobname, o->wait_for);
1385                 return false;
1386         }
1387
1388         if (!(nw = check_waitees(o->wait_for))) {
1389                 log_err("%s: waitee job %s unknown.\n", jobname, o->wait_for);
1390                 return false;
1391         }
1392
1393         if (nw > 1) {
1394                 log_err("%s: multiple waitees %s found,\n"
1395                         "please avoid duplicates when using wait_for option.\n",
1396                                 jobname, o->wait_for);
1397                 return false;
1398         }
1399
1400         return true;
1401 }
1402
1403 /*
1404  * Adds a job to the list of things todo. Sanitizes the various options
1405  * to make sure we don't have conflicts, and initializes various
1406  * members of td.
1407  */
1408 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1409                    int recursed, int client_type)
1410 {
1411         unsigned int i;
1412         char fname[PATH_MAX];
1413         int numjobs, file_alloced;
1414         struct thread_options *o = &td->o;
1415         char logname[PATH_MAX + 32];
1416
1417         /*
1418          * the def_thread is just for options, it's not a real job
1419          */
1420         if (td == &def_thread)
1421                 return 0;
1422
1423         init_flags(td);
1424
1425         /*
1426          * if we are just dumping the output command line, don't add the job
1427          */
1428         if (parse_dryrun()) {
1429                 put_job(td);
1430                 return 0;
1431         }
1432
1433         td->client_type = client_type;
1434
1435         if (profile_td_init(td))
1436                 goto err;
1437
1438         if (ioengine_load(td))
1439                 goto err;
1440
1441         file_alloced = 0;
1442         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1443                 file_alloced = 1;
1444
1445                 if (o->nr_files == 1 && exists_and_not_regfile(jobname))
1446                         add_file(td, jobname, job_add_num, 0);
1447                 else {
1448                         for (i = 0; i < o->nr_files; i++)
1449                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1450                 }
1451         }
1452
1453         if (setup_random_seeds(td)) {
1454                 td_verror(td, errno, "setup_random_seeds");
1455                 goto err;
1456         }
1457
1458         if (fixup_options(td))
1459                 goto err;
1460
1461         /*
1462          * Belongs to fixup_options, but o->name is not necessarily set as yet
1463          */
1464         if (!wait_for_ok(jobname, o))
1465                 goto err;
1466
1467         flow_init_job(td);
1468
1469         /*
1470          * IO engines only need this for option callbacks, and the address may
1471          * change in subprocesses.
1472          */
1473         if (td->eo)
1474                 *(struct thread_data **)td->eo = NULL;
1475
1476         if (td_ioengine_flagged(td, FIO_DISKLESSIO)) {
1477                 struct fio_file *f;
1478
1479                 for_each_file(td, f, i)
1480                         f->real_file_size = -1ULL;
1481         }
1482
1483         td->sem = fio_sem_init(FIO_SEM_LOCKED);
1484
1485         td->ts.clat_percentiles = o->clat_percentiles;
1486         td->ts.lat_percentiles = o->lat_percentiles;
1487         td->ts.percentile_precision = o->percentile_precision;
1488         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1489         td->ts.sig_figs = o->sig_figs;
1490
1491         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1492                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1493                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1494                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1495                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1496                 td->ts.iops_stat[i].min_val = ULONG_MAX;
1497         }
1498         td->ts.sync_stat.min_val = ULONG_MAX;
1499         td->ddir_seq_nr = o->ddir_seq_nr;
1500
1501         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1502                 prev_group_jobs = 0;
1503                 groupid++;
1504                 if (groupid == INT_MAX) {
1505                         log_err("fio: too many groups defined\n");
1506                         goto err;
1507                 }
1508         }
1509
1510         td->groupid = groupid;
1511         prev_group_jobs++;
1512
1513         if (setup_rate(td))
1514                 goto err;
1515
1516         if (o->write_lat_log) {
1517                 struct log_params p = {
1518                         .td = td,
1519                         .avg_msec = o->log_avg_msec,
1520                         .hist_msec = o->log_hist_msec,
1521                         .hist_coarseness = o->log_hist_coarseness,
1522                         .log_type = IO_LOG_TYPE_LAT,
1523                         .log_offset = o->log_offset,
1524                         .log_gz = o->log_gz,
1525                         .log_gz_store = o->log_gz_store,
1526                 };
1527                 const char *pre = o->lat_log_file ? o->lat_log_file : o->name;
1528                 const char *suf;
1529
1530                 if (p.log_gz_store)
1531                         suf = "log.fz";
1532                 else
1533                         suf = "log";
1534
1535                 gen_log_name(logname, sizeof(logname), "lat", pre,
1536                                 td->thread_number, suf, o->per_job_logs);
1537                 setup_log(&td->lat_log, &p, logname);
1538
1539                 gen_log_name(logname, sizeof(logname), "slat", pre,
1540                                 td->thread_number, suf, o->per_job_logs);
1541                 setup_log(&td->slat_log, &p, logname);
1542
1543                 gen_log_name(logname, sizeof(logname), "clat", pre,
1544                                 td->thread_number, suf, o->per_job_logs);
1545                 setup_log(&td->clat_log, &p, logname);
1546         }
1547
1548         if (o->write_hist_log) {
1549                 struct log_params p = {
1550                         .td = td,
1551                         .avg_msec = o->log_avg_msec,
1552                         .hist_msec = o->log_hist_msec,
1553                         .hist_coarseness = o->log_hist_coarseness,
1554                         .log_type = IO_LOG_TYPE_HIST,
1555                         .log_offset = o->log_offset,
1556                         .log_gz = o->log_gz,
1557                         .log_gz_store = o->log_gz_store,
1558                 };
1559                 const char *pre = o->hist_log_file ? o->hist_log_file : o->name;
1560                 const char *suf;
1561
1562 #ifndef CONFIG_ZLIB
1563                 if (td->client_type) {
1564                         log_err("fio: --write_hist_log requires zlib in client/server mode\n");
1565                         goto err;
1566                 }
1567 #endif
1568
1569                 if (p.log_gz_store)
1570                         suf = "log.fz";
1571                 else
1572                         suf = "log";
1573
1574                 gen_log_name(logname, sizeof(logname), "clat_hist", pre,
1575                                 td->thread_number, suf, o->per_job_logs);
1576                 setup_log(&td->clat_hist_log, &p, logname);
1577         }
1578
1579         if (o->write_bw_log) {
1580                 struct log_params p = {
1581                         .td = td,
1582                         .avg_msec = o->log_avg_msec,
1583                         .hist_msec = o->log_hist_msec,
1584                         .hist_coarseness = o->log_hist_coarseness,
1585                         .log_type = IO_LOG_TYPE_BW,
1586                         .log_offset = o->log_offset,
1587                         .log_gz = o->log_gz,
1588                         .log_gz_store = o->log_gz_store,
1589                 };
1590                 const char *pre = o->bw_log_file ? o->bw_log_file : o->name;
1591                 const char *suf;
1592
1593                 if (fio_option_is_set(o, bw_avg_time))
1594                         p.avg_msec = min(o->log_avg_msec, o->bw_avg_time);
1595                 else
1596                         o->bw_avg_time = p.avg_msec;
1597
1598                 p.hist_msec = o->log_hist_msec;
1599                 p.hist_coarseness = o->log_hist_coarseness;
1600
1601                 if (p.log_gz_store)
1602                         suf = "log.fz";
1603                 else
1604                         suf = "log";
1605
1606                 gen_log_name(logname, sizeof(logname), "bw", pre,
1607                                 td->thread_number, suf, o->per_job_logs);
1608                 setup_log(&td->bw_log, &p, logname);
1609         }
1610         if (o->write_iops_log) {
1611                 struct log_params p = {
1612                         .td = td,
1613                         .avg_msec = o->log_avg_msec,
1614                         .hist_msec = o->log_hist_msec,
1615                         .hist_coarseness = o->log_hist_coarseness,
1616                         .log_type = IO_LOG_TYPE_IOPS,
1617                         .log_offset = o->log_offset,
1618                         .log_gz = o->log_gz,
1619                         .log_gz_store = o->log_gz_store,
1620                 };
1621                 const char *pre = o->iops_log_file ? o->iops_log_file : o->name;
1622                 const char *suf;
1623
1624                 if (fio_option_is_set(o, iops_avg_time))
1625                         p.avg_msec = min(o->log_avg_msec, o->iops_avg_time);
1626                 else
1627                         o->iops_avg_time = p.avg_msec;
1628
1629                 p.hist_msec = o->log_hist_msec;
1630                 p.hist_coarseness = o->log_hist_coarseness;
1631
1632                 if (p.log_gz_store)
1633                         suf = "log.fz";
1634                 else
1635                         suf = "log";
1636
1637                 gen_log_name(logname, sizeof(logname), "iops", pre,
1638                                 td->thread_number, suf, o->per_job_logs);
1639                 setup_log(&td->iops_log, &p, logname);
1640         }
1641
1642         if (!o->name)
1643                 o->name = strdup(jobname);
1644
1645         if (output_format & FIO_OUTPUT_NORMAL) {
1646                 if (!job_add_num) {
1647                         if (is_backend && !recursed)
1648                                 fio_server_send_add_job(td);
1649
1650                         if (!td_ioengine_flagged(td, FIO_NOIO)) {
1651                                 char *c1, *c2, *c3, *c4;
1652                                 char *c5 = NULL, *c6 = NULL;
1653                                 int i2p = is_power_of_2(o->kb_base);
1654
1655                                 c1 = num2str(o->min_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1656                                 c2 = num2str(o->max_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1657                                 c3 = num2str(o->min_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1658                                 c4 = num2str(o->max_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1659
1660                                 if (!o->bs_is_seq_rand) {
1661                                         c5 = num2str(o->min_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1662                                         c6 = num2str(o->max_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1663                                 }
1664
1665                                 log_info("%s: (g=%d): rw=%s, ", td->o.name,
1666                                                         td->groupid,
1667                                                         ddir_str(o->td_ddir));
1668
1669                                 if (o->bs_is_seq_rand)
1670                                         log_info("bs=(R) %s-%s, (W) %s-%s, bs_is_seq_rand, ",
1671                                                         c1, c2, c3, c4);
1672                                 else
1673                                         log_info("bs=(R) %s-%s, (W) %s-%s, (T) %s-%s, ",
1674                                                         c1, c2, c3, c4, c5, c6);
1675
1676                                 log_info("ioengine=%s, iodepth=%u\n",
1677                                                 td->io_ops->name, o->iodepth);
1678
1679                                 free(c1);
1680                                 free(c2);
1681                                 free(c3);
1682                                 free(c4);
1683                                 free(c5);
1684                                 free(c6);
1685                         }
1686                 } else if (job_add_num == 1)
1687                         log_info("...\n");
1688         }
1689
1690         if (td_steadystate_init(td))
1691                 goto err;
1692
1693         /*
1694          * recurse add identical jobs, clear numjobs and stonewall options
1695          * as they don't apply to sub-jobs
1696          */
1697         numjobs = o->numjobs;
1698         while (--numjobs) {
1699                 struct thread_data *td_new = get_new_job(false, td, true, jobname);
1700
1701                 if (!td_new)
1702                         goto err;
1703
1704                 td_new->o.numjobs = 1;
1705                 td_new->o.stonewall = 0;
1706                 td_new->o.new_group = 0;
1707                 td_new->subjob_number = numjobs;
1708                 td_new->o.ss_dur = o->ss_dur * 1000000l;
1709                 td_new->o.ss_limit = o->ss_limit;
1710
1711                 if (file_alloced) {
1712                         if (td_new->files) {
1713                                 struct fio_file *f;
1714                                 for_each_file(td_new, f, i) {
1715                                         if (f->file_name)
1716                                                 sfree(f->file_name);
1717                                         sfree(f);
1718                                 }
1719                                 free(td_new->files);
1720                                 td_new->files = NULL;
1721                         }
1722                         td_new->files_index = 0;
1723                         td_new->files_size = 0;
1724                         if (td_new->o.filename) {
1725                                 free(td_new->o.filename);
1726                                 td_new->o.filename = NULL;
1727                         }
1728                 }
1729
1730                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1731                         goto err;
1732         }
1733
1734         return 0;
1735 err:
1736         put_job(td);
1737         return -1;
1738 }
1739
1740 /*
1741  * Parse as if 'o' was a command line
1742  */
1743 void add_job_opts(const char **o, int client_type)
1744 {
1745         struct thread_data *td, *td_parent;
1746         int i, in_global = 1;
1747         char jobname[32];
1748
1749         i = 0;
1750         td_parent = td = NULL;
1751         while (o[i]) {
1752                 if (!strncmp(o[i], "name", 4)) {
1753                         in_global = 0;
1754                         if (td)
1755                                 add_job(td, jobname, 0, 0, client_type);
1756                         td = NULL;
1757                         sprintf(jobname, "%s", o[i] + 5);
1758                 }
1759                 if (in_global && !td_parent)
1760                         td_parent = get_new_job(true, &def_thread, false, jobname);
1761                 else if (!in_global && !td) {
1762                         if (!td_parent)
1763                                 td_parent = &def_thread;
1764                         td = get_new_job(false, td_parent, false, jobname);
1765                 }
1766                 if (in_global)
1767                         fio_options_parse(td_parent, (char **) &o[i], 1);
1768                 else
1769                         fio_options_parse(td, (char **) &o[i], 1);
1770                 i++;
1771         }
1772
1773         if (td)
1774                 add_job(td, jobname, 0, 0, client_type);
1775 }
1776
1777 static int skip_this_section(const char *name)
1778 {
1779         int i;
1780
1781         if (!nr_job_sections)
1782                 return 0;
1783         if (!strncmp(name, "global", 6))
1784                 return 0;
1785
1786         for (i = 0; i < nr_job_sections; i++)
1787                 if (!strcmp(job_sections[i], name))
1788                         return 0;
1789
1790         return 1;
1791 }
1792
1793 static int is_empty_or_comment(char *line)
1794 {
1795         unsigned int i;
1796
1797         for (i = 0; i < strlen(line); i++) {
1798                 if (line[i] == ';')
1799                         return 1;
1800                 if (line[i] == '#')
1801                         return 1;
1802                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1803                         return 0;
1804         }
1805
1806         return 1;
1807 }
1808
1809 /*
1810  * This is our [ini] type file parser.
1811  */
1812 static int __parse_jobs_ini(struct thread_data *td,
1813                 char *file, int is_buf, int stonewall_flag, int type,
1814                 int nested, char *name, char ***popts, int *aopts, int *nopts)
1815 {
1816         bool global = false;
1817         char *string;
1818         FILE *f;
1819         char *p;
1820         int ret = 0, stonewall;
1821         int first_sect = 1;
1822         int skip_fgets = 0;
1823         int inside_skip = 0;
1824         char **opts;
1825         int i, alloc_opts, num_opts;
1826
1827         dprint(FD_PARSE, "Parsing ini file %s\n", file);
1828         assert(td || !nested);
1829
1830         if (is_buf)
1831                 f = NULL;
1832         else {
1833                 if (!strcmp(file, "-"))
1834                         f = stdin;
1835                 else
1836                         f = fopen(file, "r");
1837
1838                 if (!f) {
1839                         int __err = errno;
1840
1841                         log_err("fio: unable to open '%s' job file\n", file);
1842                         if (td)
1843                                 td_verror(td, __err, "job file open");
1844                         return 1;
1845                 }
1846         }
1847
1848         string = malloc(4096);
1849
1850         /*
1851          * it's really 256 + small bit, 280 should suffice
1852          */
1853         if (!nested) {
1854                 name = malloc(280);
1855                 memset(name, 0, 280);
1856         }
1857
1858         opts = NULL;
1859         if (nested && popts) {
1860                 opts = *popts;
1861                 alloc_opts = *aopts;
1862                 num_opts = *nopts;
1863         }
1864
1865         if (!opts) {
1866                 alloc_opts = 8;
1867                 opts = malloc(sizeof(char *) * alloc_opts);
1868                 num_opts = 0;
1869         }
1870
1871         stonewall = stonewall_flag;
1872         do {
1873                 /*
1874                  * if skip_fgets is set, we already have loaded a line we
1875                  * haven't handled.
1876                  */
1877                 if (!skip_fgets) {
1878                         if (is_buf)
1879                                 p = strsep(&file, "\n");
1880                         else
1881                                 p = fgets(string, 4096, f);
1882                         if (!p)
1883                                 break;
1884                 }
1885
1886                 skip_fgets = 0;
1887                 strip_blank_front(&p);
1888                 strip_blank_end(p);
1889
1890                 dprint(FD_PARSE, "%s\n", p);
1891                 if (is_empty_or_comment(p))
1892                         continue;
1893
1894                 if (!nested) {
1895                         if (sscanf(p, "[%255[^\n]]", name) != 1) {
1896                                 if (inside_skip)
1897                                         continue;
1898
1899                                 log_err("fio: option <%s> outside of "
1900                                         "[] job section\n", p);
1901                                 ret = 1;
1902                                 break;
1903                         }
1904
1905                         name[strlen(name) - 1] = '\0';
1906
1907                         if (skip_this_section(name)) {
1908                                 inside_skip = 1;
1909                                 continue;
1910                         } else
1911                                 inside_skip = 0;
1912
1913                         dprint(FD_PARSE, "Parsing section [%s]\n", name);
1914
1915                         global = !strncmp(name, "global", 6);
1916
1917                         if (dump_cmdline) {
1918                                 if (first_sect)
1919                                         log_info("fio ");
1920                                 if (!global)
1921                                         log_info("--name=%s ", name);
1922                                 first_sect = 0;
1923                         }
1924
1925                         td = get_new_job(global, &def_thread, false, name);
1926                         if (!td) {
1927                                 ret = 1;
1928                                 break;
1929                         }
1930
1931                         /*
1932                          * Separate multiple job files by a stonewall
1933                          */
1934                         if (!global && stonewall) {
1935                                 td->o.stonewall = stonewall;
1936                                 stonewall = 0;
1937                         }
1938
1939                         num_opts = 0;
1940                         memset(opts, 0, alloc_opts * sizeof(char *));
1941                 }
1942                 else
1943                         skip_fgets = 1;
1944
1945                 while (1) {
1946                         if (!skip_fgets) {
1947                                 if (is_buf)
1948                                         p = strsep(&file, "\n");
1949                                 else
1950                                         p = fgets(string, 4096, f);
1951                                 if (!p)
1952                                         break;
1953                                 dprint(FD_PARSE, "%s", p);
1954                         }
1955                         else
1956                                 skip_fgets = 0;
1957
1958                         if (is_empty_or_comment(p))
1959                                 continue;
1960
1961                         strip_blank_front(&p);
1962
1963                         /*
1964                          * new section, break out and make sure we don't
1965                          * fgets() a new line at the top.
1966                          */
1967                         if (p[0] == '[') {
1968                                 if (nested) {
1969                                         log_err("No new sections in included files\n");
1970                                         ret = 1;
1971                                         goto out;
1972                                 }
1973
1974                                 skip_fgets = 1;
1975                                 break;
1976                         }
1977
1978                         strip_blank_end(p);
1979
1980                         if (!strncmp(p, "include", strlen("include"))) {
1981                                 char *filename = p + strlen("include") + 1,
1982                                         *ts, *full_fn = NULL;
1983
1984                                 /*
1985                                  * Allow for the include filename
1986                                  * specification to be relative.
1987                                  */
1988                                 if (access(filename, F_OK) &&
1989                                     (ts = strrchr(file, '/'))) {
1990                                         int len = ts - file +
1991                                                 strlen(filename) + 2;
1992
1993                                         if (!(full_fn = calloc(1, len))) {
1994                                                 ret = ENOMEM;
1995                                                 break;
1996                                         }
1997
1998                                         strncpy(full_fn,
1999                                                 file, (ts - file) + 1);
2000                                         strncpy(full_fn + (ts - file) + 1,
2001                                                 filename, strlen(filename));
2002                                         full_fn[len - 1] = 0;
2003                                         filename = full_fn;
2004                                 }
2005
2006                                 ret = __parse_jobs_ini(td, filename, is_buf,
2007                                                        stonewall_flag, type, 1,
2008                                                        name, &opts,
2009                                                        &alloc_opts, &num_opts);
2010
2011                                 if (ret) {
2012                                         log_err("Error %d while parsing "
2013                                                 "include file %s\n",
2014                                                 ret, filename);
2015                                 }
2016
2017                                 if (full_fn)
2018                                         free(full_fn);
2019
2020                                 if (ret)
2021                                         break;
2022
2023                                 continue;
2024                         }
2025
2026                         if (num_opts == alloc_opts) {
2027                                 alloc_opts <<= 1;
2028                                 opts = realloc(opts,
2029                                                 alloc_opts * sizeof(char *));
2030                         }
2031
2032                         opts[num_opts] = strdup(p);
2033                         num_opts++;
2034                 }
2035
2036                 if (nested) {
2037                         *popts = opts;
2038                         *aopts = alloc_opts;
2039                         *nopts = num_opts;
2040                         goto out;
2041                 }
2042
2043                 ret = fio_options_parse(td, opts, num_opts);
2044                 if (!ret) {
2045                         if (dump_cmdline)
2046                                 dump_opt_list(td);
2047
2048                         ret = add_job(td, name, 0, 0, type);
2049                 } else {
2050                         log_err("fio: job %s dropped\n", name);
2051                         put_job(td);
2052                 }
2053
2054                 for (i = 0; i < num_opts; i++)
2055                         free(opts[i]);
2056                 num_opts = 0;
2057         } while (!ret);
2058
2059         if (dump_cmdline)
2060                 log_info("\n");
2061
2062         i = 0;
2063         while (i < nr_job_sections) {
2064                 free(job_sections[i]);
2065                 i++;
2066         }
2067
2068         free(opts);
2069 out:
2070         free(string);
2071         if (!nested)
2072                 free(name);
2073         if (!is_buf && f != stdin)
2074                 fclose(f);
2075         return ret;
2076 }
2077
2078 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
2079 {
2080         return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
2081                         0, NULL, NULL, NULL, NULL);
2082 }
2083
2084 static int fill_def_thread(void)
2085 {
2086         memset(&def_thread, 0, sizeof(def_thread));
2087         INIT_FLIST_HEAD(&def_thread.opt_list);
2088
2089         fio_getaffinity(getpid(), &def_thread.o.cpumask);
2090         def_thread.o.error_dump = 1;
2091
2092         /*
2093          * fill default options
2094          */
2095         fio_fill_default_options(&def_thread);
2096         return 0;
2097 }
2098
2099 static void show_debug_categories(void)
2100 {
2101 #ifdef FIO_INC_DEBUG
2102         const struct debug_level *dl = &debug_levels[0];
2103         int curlen, first = 1;
2104
2105         curlen = 0;
2106         while (dl->name) {
2107                 int has_next = (dl + 1)->name != NULL;
2108
2109                 if (first || curlen + strlen(dl->name) >= 80) {
2110                         if (!first) {
2111                                 printf("\n");
2112                                 curlen = 0;
2113                         }
2114                         curlen += printf("\t\t\t%s", dl->name);
2115                         curlen += 3 * (8 - 1);
2116                         if (has_next)
2117                                 curlen += printf(",");
2118                 } else {
2119                         curlen += printf("%s", dl->name);
2120                         if (has_next)
2121                                 curlen += printf(",");
2122                 }
2123                 dl++;
2124                 first = 0;
2125         }
2126         printf("\n");
2127 #endif
2128 }
2129
2130 /*
2131  * Following options aren't printed by usage().
2132  * --append-terse - Equivalent to --output-format=terse, see f6a7df53.
2133  * --latency-log - Deprecated option.
2134  */
2135 static void usage(const char *name)
2136 {
2137         printf("%s\n", fio_version_string);
2138         printf("%s [options] [job options] <job file(s)>\n", name);
2139         printf("  --debug=options\tEnable debug logging. May be one/more of:\n");
2140         show_debug_categories();
2141         printf("  --parse-only\t\tParse options only, don't start any IO\n");
2142         printf("  --output\t\tWrite output to file\n");
2143         printf("  --bandwidth-log\tGenerate aggregate bandwidth logs\n");
2144         printf("  --minimal\t\tMinimal (terse) output\n");
2145         printf("  --output-format=type\tOutput format (terse,json,json+,normal)\n");
2146         printf("  --terse-version=type\tSet terse version output format"
2147                 " (default 3, or 2 or 4)\n");
2148         printf("  --version\t\tPrint version info and exit\n");
2149         printf("  --help\t\tPrint this page\n");
2150         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
2151         printf("  --crctest=[type]\tTest speed of checksum functions\n");
2152         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
2153                 " them\n");
2154         printf("  --enghelp=engine\tPrint ioengine help, or list"
2155                 " available ioengines\n");
2156         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
2157                 " cmd\n");
2158         printf("  --showcmd\t\tTurn a job file into command line options\n");
2159         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
2160         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
2161         printf("  --eta-newline=time\tForce a new line for every 'time'");
2162         printf(" period passed\n");
2163         printf("  --status-interval=t\tForce full status dump every");
2164         printf(" 't' period passed\n");
2165         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
2166                 " writes\n");
2167         printf("  --section=name\tOnly run specified section in job file,"
2168                 " multiple sections can be specified\n");
2169         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
2170                 " (def 16384)\n");
2171         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
2172         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
2173         printf("  --server=args\t\tStart a backend fio server\n");
2174         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
2175         printf("  --client=hostname\tTalk to remote backend(s) fio server at hostname\n");
2176         printf("  --remote-config=file\tTell fio server to load this local job file\n");
2177         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
2178                 "\t\t\t(option=system,percpu) or run unit work\n"
2179                 "\t\t\tcalibration only (option=calibrate)\n");
2180 #ifdef CONFIG_ZLIB
2181         printf("  --inflate-log=log\tInflate and output compressed log\n");
2182 #endif
2183         printf("  --trigger-file=file\tExecute trigger cmd when file exists\n");
2184         printf("  --trigger-timeout=t\tExecute trigger at this time\n");
2185         printf("  --trigger=cmd\t\tSet this command as local trigger\n");
2186         printf("  --trigger-remote=cmd\tSet this command as remote trigger\n");
2187         printf("  --aux-path=path\tUse this path for fio state generated files\n");
2188         printf("\nFio was written by Jens Axboe <axboe@kernel.dk>\n");
2189 }
2190
2191 #ifdef FIO_INC_DEBUG
2192 const struct debug_level debug_levels[] = {
2193         { .name = "process",
2194           .help = "Process creation/exit logging",
2195           .shift = FD_PROCESS,
2196         },
2197         { .name = "file",
2198           .help = "File related action logging",
2199           .shift = FD_FILE,
2200         },
2201         { .name = "io",
2202           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
2203           .shift = FD_IO,
2204         },
2205         { .name = "mem",
2206           .help = "Memory allocation/freeing logging",
2207           .shift = FD_MEM,
2208         },
2209         { .name = "blktrace",
2210           .help = "blktrace action logging",
2211           .shift = FD_BLKTRACE,
2212         },
2213         { .name = "verify",
2214           .help = "IO verification action logging",
2215           .shift = FD_VERIFY,
2216         },
2217         { .name = "random",
2218           .help = "Random generation logging",
2219           .shift = FD_RANDOM,
2220         },
2221         { .name = "parse",
2222           .help = "Parser logging",
2223           .shift = FD_PARSE,
2224         },
2225         { .name = "diskutil",
2226           .help = "Disk utility logging actions",
2227           .shift = FD_DISKUTIL,
2228         },
2229         { .name = "job",
2230           .help = "Logging related to creating/destroying jobs",
2231           .shift = FD_JOB,
2232         },
2233         { .name = "mutex",
2234           .help = "Mutex logging",
2235           .shift = FD_MUTEX
2236         },
2237         { .name = "profile",
2238           .help = "Logging related to profiles",
2239           .shift = FD_PROFILE,
2240         },
2241         { .name = "time",
2242           .help = "Logging related to time keeping functions",
2243           .shift = FD_TIME,
2244         },
2245         { .name = "net",
2246           .help = "Network logging",
2247           .shift = FD_NET,
2248         },
2249         { .name = "rate",
2250           .help = "Rate logging",
2251           .shift = FD_RATE,
2252         },
2253         { .name = "compress",
2254           .help = "Log compression logging",
2255           .shift = FD_COMPRESS,
2256         },
2257         { .name = "steadystate",
2258           .help = "Steady state detection logging",
2259           .shift = FD_STEADYSTATE,
2260         },
2261         { .name = "helperthread",
2262           .help = "Helper thread logging",
2263           .shift = FD_HELPERTHREAD,
2264         },
2265         { .name = NULL, },
2266 };
2267
2268 static int set_debug(const char *string)
2269 {
2270         const struct debug_level *dl;
2271         char *p = (char *) string;
2272         char *opt;
2273         int i;
2274
2275         if (!string)
2276                 return 0;
2277
2278         if (!strcmp(string, "?") || !strcmp(string, "help")) {
2279                 log_info("fio: dumping debug options:");
2280                 for (i = 0; debug_levels[i].name; i++) {
2281                         dl = &debug_levels[i];
2282                         log_info("%s,", dl->name);
2283                 }
2284                 log_info("all\n");
2285                 return 1;
2286         }
2287
2288         while ((opt = strsep(&p, ",")) != NULL) {
2289                 int found = 0;
2290
2291                 if (!strncmp(opt, "all", 3)) {
2292                         log_info("fio: set all debug options\n");
2293                         fio_debug = ~0UL;
2294                         continue;
2295                 }
2296
2297                 for (i = 0; debug_levels[i].name; i++) {
2298                         dl = &debug_levels[i];
2299                         found = !strncmp(opt, dl->name, strlen(dl->name));
2300                         if (!found)
2301                                 continue;
2302
2303                         if (dl->shift == FD_JOB) {
2304                                 opt = strchr(opt, ':');
2305                                 if (!opt) {
2306                                         log_err("fio: missing job number\n");
2307                                         break;
2308                                 }
2309                                 opt++;
2310                                 fio_debug_jobno = atoi(opt);
2311                                 log_info("fio: set debug jobno %d\n",
2312                                                         fio_debug_jobno);
2313                         } else {
2314                                 log_info("fio: set debug option %s\n", opt);
2315                                 fio_debug |= (1UL << dl->shift);
2316                         }
2317                         break;
2318                 }
2319
2320                 if (!found)
2321                         log_err("fio: debug mask %s not found\n", opt);
2322         }
2323         return 0;
2324 }
2325 #else
2326 static int set_debug(const char *string)
2327 {
2328         log_err("fio: debug tracing not included in build\n");
2329         return 1;
2330 }
2331 #endif
2332
2333 static void fio_options_fill_optstring(void)
2334 {
2335         char *ostr = cmd_optstr;
2336         int i, c;
2337
2338         c = i = 0;
2339         while (l_opts[i].name) {
2340                 ostr[c++] = l_opts[i].val;
2341                 if (l_opts[i].has_arg == required_argument)
2342                         ostr[c++] = ':';
2343                 else if (l_opts[i].has_arg == optional_argument) {
2344                         ostr[c++] = ':';
2345                         ostr[c++] = ':';
2346                 }
2347                 i++;
2348         }
2349         ostr[c] = '\0';
2350 }
2351
2352 static int client_flag_set(char c)
2353 {
2354         int i;
2355
2356         i = 0;
2357         while (l_opts[i].name) {
2358                 int val = l_opts[i].val;
2359
2360                 if (c == (val & 0xff))
2361                         return (val & FIO_CLIENT_FLAG);
2362
2363                 i++;
2364         }
2365
2366         return 0;
2367 }
2368
2369 static void parse_cmd_client(void *client, char *opt)
2370 {
2371         fio_client_add_cmd_option(client, opt);
2372 }
2373
2374 static void show_closest_option(const char *name)
2375 {
2376         int best_option, best_distance;
2377         int i, distance;
2378
2379         while (*name == '-')
2380                 name++;
2381
2382         best_option = -1;
2383         best_distance = INT_MAX;
2384         i = 0;
2385         while (l_opts[i].name) {
2386                 distance = string_distance(name, l_opts[i].name);
2387                 if (distance < best_distance) {
2388                         best_distance = distance;
2389                         best_option = i;
2390                 }
2391                 i++;
2392         }
2393
2394         if (best_option != -1 && string_distance_ok(name, best_distance))
2395                 log_err("Did you mean %s?\n", l_opts[best_option].name);
2396 }
2397
2398 static int parse_output_format(const char *optarg)
2399 {
2400         char *p, *orig, *opt;
2401         int ret = 0;
2402
2403         p = orig = strdup(optarg);
2404
2405         output_format = 0;
2406
2407         while ((opt = strsep(&p, ",")) != NULL) {
2408                 if (!strcmp(opt, "minimal") ||
2409                     !strcmp(opt, "terse") ||
2410                     !strcmp(opt, "csv"))
2411                         output_format |= FIO_OUTPUT_TERSE;
2412                 else if (!strcmp(opt, "json"))
2413                         output_format |= FIO_OUTPUT_JSON;
2414                 else if (!strcmp(opt, "json+"))
2415                         output_format |= (FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS);
2416                 else if (!strcmp(opt, "normal"))
2417                         output_format |= FIO_OUTPUT_NORMAL;
2418                 else {
2419                         log_err("fio: invalid output format %s\n", opt);
2420                         ret = 1;
2421                         break;
2422                 }
2423         }
2424
2425         free(orig);
2426         return ret;
2427 }
2428
2429 int parse_cmd_line(int argc, char *argv[], int client_type)
2430 {
2431         struct thread_data *td = NULL;
2432         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
2433         char *ostr = cmd_optstr;
2434         char *pid_file = NULL;
2435         void *cur_client = NULL;
2436         int backend = 0;
2437
2438         /*
2439          * Reset optind handling, since we may call this multiple times
2440          * for the backend.
2441          */
2442         optind = 1;
2443
2444         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
2445                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
2446                         parse_cmd_client(cur_client, argv[optind - 1]);
2447                         c &= ~FIO_CLIENT_FLAG;
2448                 }
2449
2450                 switch (c) {
2451                 case 'a':
2452                         smalloc_pool_size = atoi(optarg);
2453                         smalloc_pool_size <<= 10;
2454                         sinit();
2455                         break;
2456                 case 'l':
2457                         log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
2458                         do_exit++;
2459                         exit_val = 1;
2460                         break;
2461                 case 'b':
2462                         write_bw_log = 1;
2463                         break;
2464                 case 'o': {
2465                         FILE *tmp;
2466
2467                         if (f_out && f_out != stdout)
2468                                 fclose(f_out);
2469
2470                         tmp = fopen(optarg, "w+");
2471                         if (!tmp) {
2472                                 log_err("fio: output file open error: %s\n", strerror(errno));
2473                                 exit_val = 1;
2474                                 do_exit++;
2475                                 break;
2476                         }
2477                         f_err = f_out = tmp;
2478                         break;
2479                         }
2480                 case 'm':
2481                         output_format = FIO_OUTPUT_TERSE;
2482                         break;
2483                 case 'F':
2484                         if (parse_output_format(optarg)) {
2485                                 log_err("fio: failed parsing output-format\n");
2486                                 exit_val = 1;
2487                                 do_exit++;
2488                                 break;
2489                         }
2490                         break;
2491                 case 'f':
2492                         output_format |= FIO_OUTPUT_TERSE;
2493                         break;
2494                 case 'h':
2495                         did_arg = true;
2496                         if (!cur_client) {
2497                                 usage(argv[0]);
2498                                 do_exit++;
2499                         }
2500                         break;
2501                 case 'c':
2502                         did_arg = true;
2503                         if (!cur_client) {
2504                                 fio_show_option_help(optarg);
2505                                 do_exit++;
2506                         }
2507                         break;
2508                 case 'i':
2509                         did_arg = true;
2510                         if (!cur_client) {
2511                                 fio_show_ioengine_help(optarg);
2512                                 do_exit++;
2513                         }
2514                         break;
2515                 case 's':
2516                         did_arg = true;
2517                         dump_cmdline = 1;
2518                         break;
2519                 case 'r':
2520                         read_only = 1;
2521                         break;
2522                 case 'v':
2523                         did_arg = true;
2524                         if (!cur_client) {
2525                                 log_info("%s\n", fio_version_string);
2526                                 do_exit++;
2527                         }
2528                         break;
2529                 case 'V':
2530                         terse_version = atoi(optarg);
2531                         if (!(terse_version >= 2 && terse_version <= 5)) {
2532                                 log_err("fio: bad terse version format\n");
2533                                 exit_val = 1;
2534                                 do_exit++;
2535                         }
2536                         break;
2537                 case 'e':
2538                         if (!strcmp("always", optarg))
2539                                 eta_print = FIO_ETA_ALWAYS;
2540                         else if (!strcmp("never", optarg))
2541                                 eta_print = FIO_ETA_NEVER;
2542                         break;
2543                 case 'E': {
2544                         long long t = 0;
2545
2546                         if (check_str_time(optarg, &t, 1)) {
2547                                 log_err("fio: failed parsing eta time %s\n", optarg);
2548                                 exit_val = 1;
2549                                 do_exit++;
2550                                 break;
2551                         }
2552                         eta_new_line = t / 1000;
2553                         if (!eta_new_line) {
2554                                 log_err("fio: eta new line time too short\n");
2555                                 exit_val = 1;
2556                                 do_exit++;
2557                         }
2558                         break;
2559                         }
2560                 case 'O': {
2561                         long long t = 0;
2562
2563                         if (check_str_time(optarg, &t, 1)) {
2564                                 log_err("fio: failed parsing eta interval %s\n", optarg);
2565                                 exit_val = 1;
2566                                 do_exit++;
2567                                 break;
2568                         }
2569                         eta_interval_msec = t / 1000;
2570                         if (eta_interval_msec < DISK_UTIL_MSEC) {
2571                                 log_err("fio: eta interval time too short (%umsec min)\n", DISK_UTIL_MSEC);
2572                                 exit_val = 1;
2573                                 do_exit++;
2574                         }
2575                         break;
2576                         }
2577                 case 'd':
2578                         if (set_debug(optarg))
2579                                 do_exit++;
2580                         break;
2581                 case 'P':
2582                         did_arg = true;
2583                         parse_only = 1;
2584                         break;
2585                 case 'x': {
2586                         size_t new_size;
2587
2588                         if (!strcmp(optarg, "global")) {
2589                                 log_err("fio: can't use global as only "
2590                                         "section\n");
2591                                 do_exit++;
2592                                 exit_val = 1;
2593                                 break;
2594                         }
2595                         new_size = (nr_job_sections + 1) * sizeof(char *);
2596                         job_sections = realloc(job_sections, new_size);
2597                         job_sections[nr_job_sections] = strdup(optarg);
2598                         nr_job_sections++;
2599                         break;
2600                         }
2601 #ifdef CONFIG_ZLIB
2602                 case 'X':
2603                         exit_val = iolog_file_inflate(optarg);
2604                         did_arg = true;
2605                         do_exit++;
2606                         break;
2607 #endif
2608                 case 'p':
2609                         did_arg = true;
2610                         if (exec_profile)
2611                                 free(exec_profile);
2612                         exec_profile = strdup(optarg);
2613                         break;
2614                 case FIO_GETOPT_JOB: {
2615                         const char *opt = l_opts[lidx].name;
2616                         char *val = optarg;
2617
2618                         if (!strncmp(opt, "name", 4) && td) {
2619                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2620                                 if (ret)
2621                                         goto out_free;
2622                                 td = NULL;
2623                                 did_arg = true;
2624                         }
2625                         if (!td) {
2626                                 int is_section = !strncmp(opt, "name", 4);
2627                                 int global = 0;
2628
2629                                 if (!is_section || !strncmp(val, "global", 6))
2630                                         global = 1;
2631
2632                                 if (is_section && skip_this_section(val))
2633                                         continue;
2634
2635                                 td = get_new_job(global, &def_thread, true, NULL);
2636                                 if (!td || ioengine_load(td)) {
2637                                         if (td) {
2638                                                 put_job(td);
2639                                                 td = NULL;
2640                                         }
2641                                         do_exit++;
2642                                         exit_val = 1;
2643                                         break;
2644                                 }
2645                                 fio_options_set_ioengine_opts(l_opts, td);
2646                         }
2647
2648                         if ((!val || !strlen(val)) &&
2649                             l_opts[lidx].has_arg == required_argument) {
2650                                 log_err("fio: option %s requires an argument\n", opt);
2651                                 ret = 1;
2652                         } else
2653                                 ret = fio_cmd_option_parse(td, opt, val);
2654
2655                         if (ret) {
2656                                 if (td) {
2657                                         put_job(td);
2658                                         td = NULL;
2659                                 }
2660                                 do_exit++;
2661                                 exit_val = 1;
2662                         }
2663
2664                         if (!ret && !strcmp(opt, "ioengine")) {
2665                                 if (ioengine_load(td)) {
2666                                         put_job(td);
2667                                         td = NULL;
2668                                         do_exit++;
2669                                         exit_val = 1;
2670                                         break;
2671                                 }
2672                                 fio_options_set_ioengine_opts(l_opts, td);
2673                         }
2674                         break;
2675                 }
2676                 case FIO_GETOPT_IOENGINE: {
2677                         const char *opt = l_opts[lidx].name;
2678                         char *val = optarg;
2679
2680                         if (!td)
2681                                 break;
2682
2683                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
2684                         break;
2685                 }
2686                 case 'w':
2687                         warnings_fatal = 1;
2688                         break;
2689                 case 'j':
2690                         max_jobs = atoi(optarg);
2691                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2692                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
2693                                 do_exit++;
2694                                 exit_val = 1;
2695                         }
2696                         break;
2697                 case 'S':
2698                         did_arg = true;
2699 #ifndef CONFIG_NO_SHM
2700                         if (nr_clients) {
2701                                 log_err("fio: can't be both client and server\n");
2702                                 do_exit++;
2703                                 exit_val = 1;
2704                                 break;
2705                         }
2706                         if (optarg)
2707                                 fio_server_set_arg(optarg);
2708                         is_backend = 1;
2709                         backend = 1;
2710 #else
2711                         log_err("fio: client/server requires SHM support\n");
2712                         do_exit++;
2713                         exit_val = 1;
2714 #endif
2715                         break;
2716                 case 'D':
2717                         if (pid_file)
2718                                 free(pid_file);
2719                         pid_file = strdup(optarg);
2720                         break;
2721                 case 'I':
2722                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
2723                                 /* exit on error and calibration only */
2724                                 did_arg = true;
2725                                 do_exit++;
2726                                 if (ret == -1)
2727                                         exit_val = 1;
2728                         }
2729                         break;
2730                 case 'C':
2731                         did_arg = true;
2732                         if (is_backend) {
2733                                 log_err("fio: can't be both client and server\n");
2734                                 do_exit++;
2735                                 exit_val = 1;
2736                                 break;
2737                         }
2738                         /* if --client parameter contains a pathname */
2739                         if (0 == access(optarg, R_OK)) {
2740                                 /* file contains a list of host addrs or names */
2741                                 char hostaddr[PATH_MAX] = {0};
2742                                 char formatstr[8];
2743                                 FILE * hostf = fopen(optarg, "r");
2744                                 if (!hostf) {
2745                                         log_err("fio: could not open client list file %s for read\n", optarg);
2746                                         do_exit++;
2747                                         exit_val = 1;
2748                                         break;
2749                                 }
2750                                 sprintf(formatstr, "%%%ds", PATH_MAX - 1);
2751                                 /*
2752                                  * read at most PATH_MAX-1 chars from each
2753                                  * record in this file
2754                                  */
2755                                 while (fscanf(hostf, formatstr, hostaddr) == 1) {
2756                                         /* expect EVERY host in file to be valid */
2757                                         if (fio_client_add(&fio_client_ops, hostaddr, &cur_client)) {
2758                                                 log_err("fio: failed adding client %s from file %s\n", hostaddr, optarg);
2759                                                 do_exit++;
2760                                                 exit_val = 1;
2761                                                 break;
2762                                         }
2763                                 }
2764                                 fclose(hostf);
2765                                 break; /* no possibility of job file for "this client only" */
2766                         }
2767                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2768                                 log_err("fio: failed adding client %s\n", optarg);
2769                                 do_exit++;
2770                                 exit_val = 1;
2771                                 break;
2772                         }
2773                         /*
2774                          * If the next argument exists and isn't an option,
2775                          * assume it's a job file for this client only.
2776                          */
2777                         while (optind < argc) {
2778                                 if (!strncmp(argv[optind], "--", 2) ||
2779                                     !strncmp(argv[optind], "-", 1))
2780                                         break;
2781
2782                                 if (fio_client_add_ini_file(cur_client, argv[optind], false))
2783                                         break;
2784                                 optind++;
2785                         }
2786                         break;
2787                 case 'R':
2788                         did_arg = true;
2789                         if (fio_client_add_ini_file(cur_client, optarg, true)) {
2790                                 do_exit++;
2791                                 exit_val = 1;
2792                         }
2793                         break;
2794                 case 'T':
2795                         did_arg = true;
2796                         do_exit++;
2797                         exit_val = fio_monotonic_clocktest(1);
2798                         break;
2799                 case 'G':
2800                         did_arg = true;
2801                         do_exit++;
2802                         exit_val = fio_crctest(optarg);
2803                         break;
2804                 case 'M':
2805                         did_arg = true;
2806                         do_exit++;
2807                         exit_val = fio_memcpy_test(optarg);
2808                         break;
2809                 case 'L': {
2810                         long long val;
2811
2812                         if (check_str_time(optarg, &val, 1)) {
2813                                 log_err("fio: failed parsing time %s\n", optarg);
2814                                 do_exit++;
2815                                 exit_val = 1;
2816                                 break;
2817                         }
2818                         if (val < 1000) {
2819                                 log_err("fio: status interval too small\n");
2820                                 do_exit++;
2821                                 exit_val = 1;
2822                         }
2823                         status_interval = val / 1000;
2824                         break;
2825                         }
2826                 case 'W':
2827                         if (trigger_file)
2828                                 free(trigger_file);
2829                         trigger_file = strdup(optarg);
2830                         break;
2831                 case 'H':
2832                         if (trigger_cmd)
2833                                 free(trigger_cmd);
2834                         trigger_cmd = strdup(optarg);
2835                         break;
2836                 case 'J':
2837                         if (trigger_remote_cmd)
2838                                 free(trigger_remote_cmd);
2839                         trigger_remote_cmd = strdup(optarg);
2840                         break;
2841                 case 'K':
2842                         if (aux_path)
2843                                 free(aux_path);
2844                         aux_path = strdup(optarg);
2845                         break;
2846                 case 'B':
2847                         if (check_str_time(optarg, &trigger_timeout, 1)) {
2848                                 log_err("fio: failed parsing time %s\n", optarg);
2849                                 do_exit++;
2850                                 exit_val = 1;
2851                         }
2852                         trigger_timeout /= 1000000;
2853                         break;
2854                 case '?':
2855                         log_err("%s: unrecognized option '%s'\n", argv[0],
2856                                                         argv[optind - 1]);
2857                         show_closest_option(argv[optind - 1]);
2858                 default:
2859                         do_exit++;
2860                         exit_val = 1;
2861                         break;
2862                 }
2863                 if (do_exit)
2864                         break;
2865         }
2866
2867         if (do_exit && !(is_backend || nr_clients))
2868                 exit(exit_val);
2869
2870         if (nr_clients && fio_clients_connect())
2871                 exit(1);
2872
2873         if (is_backend && backend)
2874                 return fio_start_server(pid_file);
2875         else if (pid_file)
2876                 free(pid_file);
2877
2878         if (td) {
2879                 if (!ret) {
2880                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2881                         if (ret)
2882                                 exit(1);
2883                 }
2884         }
2885
2886         while (!ret && optind < argc) {
2887                 ini_idx++;
2888                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2889                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2890                 optind++;
2891         }
2892
2893 out_free:
2894         return ini_idx;
2895 }
2896
2897 int fio_init_options(void)
2898 {
2899         f_out = stdout;
2900         f_err = stderr;
2901
2902         fio_options_fill_optstring();
2903         fio_options_dup_and_init(l_opts);
2904
2905         atexit(free_shm);
2906
2907         if (fill_def_thread())
2908                 return 1;
2909
2910         return 0;
2911 }
2912
2913 extern int fio_check_options(struct thread_options *);
2914
2915 int parse_options(int argc, char *argv[])
2916 {
2917         const int type = FIO_CLIENT_TYPE_CLI;
2918         int job_files, i;
2919
2920         if (fio_init_options())
2921                 return 1;
2922         if (fio_test_cconv(&def_thread.o))
2923                 log_err("fio: failed internal cconv test\n");
2924
2925         job_files = parse_cmd_line(argc, argv, type);
2926
2927         if (job_files > 0) {
2928                 for (i = 0; i < job_files; i++) {
2929                         if (i && fill_def_thread())
2930                                 return 1;
2931                         if (nr_clients) {
2932                                 if (fio_clients_send_ini(ini_file[i]))
2933                                         return 1;
2934                                 free(ini_file[i]);
2935                         } else if (!is_backend) {
2936                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2937                                         return 1;
2938                                 free(ini_file[i]);
2939                         }
2940                 }
2941         } else if (nr_clients) {
2942                 if (fill_def_thread())
2943                         return 1;
2944                 if (fio_clients_send_ini(NULL))
2945                         return 1;
2946         }
2947
2948         free(ini_file);
2949         fio_options_free(&def_thread);
2950         filesetup_mem_free();
2951
2952         if (!thread_number) {
2953                 if (parse_dryrun())
2954                         return 0;
2955                 if (exec_profile)
2956                         return 0;
2957                 if (is_backend || nr_clients)
2958                         return 0;
2959                 if (did_arg)
2960                         return 0;
2961
2962                 log_err("No job(s) defined\n\n");
2963                 usage(argv[0]);
2964                 return 1;
2965         }
2966
2967         if (output_format & FIO_OUTPUT_NORMAL)
2968                 log_info("%s\n", fio_version_string);
2969
2970         return 0;
2971 }
2972
2973 void options_default_fill(struct thread_options *o)
2974 {
2975         memcpy(o, &def_thread.o, sizeof(*o));
2976 }
2977
2978 struct thread_data *get_global_options(void)
2979 {
2980         return &def_thread;
2981 }