init.c

   1 /*
   2  * This file contains job initialization and setup functions.
   3  */
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6 #include <unistd.h>
   7 #include <fcntl.h>
   8 #include <ctype.h>
   9 #include <string.h>
  10 #include <errno.h>
  11 #include <sys/ipc.h>
  12 #include <sys/types.h>
  13 #include <sys/stat.h>
  14
  15 #include "fio.h"
  16 #ifndef FIO_NO_HAVE_SHM_H
  17 #include <sys/shm.h>
  18 #endif
  19
  20 #include "parse.h"
  21 #include "smalloc.h"
  22 #include "filehash.h"
  23 #include "verify.h"
  24 #include "profile.h"
  25 #include "server.h"
  26 #include "idletime.h"
  27 #include "filelock.h"
  28
  29 #include "lib/getopt.h"
  30 #include "lib/strcasestr.h"
  31
  32 #include "crc/test.h"
  33
  34 const char fio_version_string[] = FIO_VERSION;
  35
  36 #define FIO_RANDSEED            (0xb1899bedUL)
  37
  38 static char **ini_file;
  39 static int max_jobs = FIO_MAX_JOBS;
  40 static int dump_cmdline;
  41 static long long def_timeout;
  42 static int parse_only;
  43
  44 static struct thread_data def_thread;
  45 struct thread_data *threads = NULL;
  46 static char **job_sections;
  47 static int nr_job_sections;
  48
  49 int exitall_on_terminate = 0;
  50 int output_format = FIO_OUTPUT_NORMAL;
  51 int append_terse_output = 0;
  52 int eta_print = FIO_ETA_AUTO;
  53 int eta_new_line = 0;
  54 FILE *f_out = NULL;
  55 FILE *f_err = NULL;
  56 char *exec_profile = NULL;
  57 int warnings_fatal = 0;
  58 int terse_version = 3;
  59 int is_backend = 0;
  60 int nr_clients = 0;
  61 int log_syslog = 0;
  62
  63 int write_bw_log = 0;
  64 int read_only = 0;
  65 int status_interval = 0;
  66
  67 static int prev_group_jobs;
  68
  69 unsigned long fio_debug = 0;
  70 unsigned int fio_debug_jobno = -1;
  71 unsigned int *fio_debug_jobp = NULL;
  72
  73 static char cmd_optstr[256];
  74 static int did_arg;
  75
  76 #define FIO_CLIENT_FLAG         (1 << 16)
  77
  78 /*
  79  * Command line options. These will contain the above, plus a few
  80  * extra that only pertain to fio itself and not jobs.
  81  */
  82 static struct option l_opts[FIO_NR_OPTIONS] = {
  83         {
  84                 .name           = (char *) "output",
  85                 .has_arg        = required_argument,
  86                 .val            = 'o' | FIO_CLIENT_FLAG,
  87         },
  88         {
  89                 .name           = (char *) "timeout",
  90                 .has_arg        = required_argument,
  91                 .val            = 't' | FIO_CLIENT_FLAG,
  92         },
  93         {
  94                 .name           = (char *) "latency-log",
  95                 .has_arg        = required_argument,
  96                 .val            = 'l' | FIO_CLIENT_FLAG,
  97         },
  98         {
  99                 .name           = (char *) "bandwidth-log",
 100                 .has_arg        = required_argument,
 101                 .val            = 'b' | FIO_CLIENT_FLAG,
 102         },
 103         {
 104                 .name           = (char *) "minimal",
 105                 .has_arg        = no_argument,
 106                 .val            = 'm' | FIO_CLIENT_FLAG,
 107         },
 108         {
 109                 .name           = (char *) "output-format",
 110                 .has_arg        = optional_argument,
 111                 .val            = 'F' | FIO_CLIENT_FLAG,
 112         },
 113         {
 114                 .name           = (char *) "append-terse",
 115                 .has_arg        = optional_argument,
 116                 .val            = 'f',
 117         },
 118         {
 119                 .name           = (char *) "version",
 120                 .has_arg        = no_argument,
 121                 .val            = 'v' | FIO_CLIENT_FLAG,
 122         },
 123         {
 124                 .name           = (char *) "help",
 125                 .has_arg        = no_argument,
 126                 .val            = 'h' | FIO_CLIENT_FLAG,
 127         },
 128         {
 129                 .name           = (char *) "cmdhelp",
 130                 .has_arg        = optional_argument,
 131                 .val            = 'c' | FIO_CLIENT_FLAG,
 132         },
 133         {
 134                 .name           = (char *) "enghelp",
 135                 .has_arg        = optional_argument,
 136                 .val            = 'i' | FIO_CLIENT_FLAG,
 137         },
 138         {
 139                 .name           = (char *) "showcmd",
 140                 .has_arg        = no_argument,
 141                 .val            = 's' | FIO_CLIENT_FLAG,
 142         },
 143         {
 144                 .name           = (char *) "readonly",
 145                 .has_arg        = no_argument,
 146                 .val            = 'r' | FIO_CLIENT_FLAG,
 147         },
 148         {
 149                 .name           = (char *) "eta",
 150                 .has_arg        = required_argument,
 151                 .val            = 'e' | FIO_CLIENT_FLAG,
 152         },
 153         {
 154                 .name           = (char *) "eta-newline",
 155                 .has_arg        = required_argument,
 156                 .val            = 'E' | FIO_CLIENT_FLAG,
 157         },
 158         {
 159                 .name           = (char *) "debug",
 160                 .has_arg        = required_argument,
 161                 .val            = 'd' | FIO_CLIENT_FLAG,
 162         },
 163         {
 164                 .name           = (char *) "parse-only",
 165                 .has_arg        = no_argument,
 166                 .val            = 'P' | FIO_CLIENT_FLAG,
 167         },
 168         {
 169                 .name           = (char *) "section",
 170                 .has_arg        = required_argument,
 171                 .val            = 'x' | FIO_CLIENT_FLAG,
 172         },
 173 #ifdef CONFIG_ZLIB
 174         {
 175                 .name           = (char *) "inflate-log",
 176                 .has_arg        = required_argument,
 177                 .val            = 'X' | FIO_CLIENT_FLAG,
 178         },
 179 #endif
 180         {
 181                 .name           = (char *) "alloc-size",
 182                 .has_arg        = required_argument,
 183                 .val            = 'a' | FIO_CLIENT_FLAG,
 184         },
 185         {
 186                 .name           = (char *) "profile",
 187                 .has_arg        = required_argument,
 188                 .val            = 'p' | FIO_CLIENT_FLAG,
 189         },
 190         {
 191                 .name           = (char *) "warnings-fatal",
 192                 .has_arg        = no_argument,
 193                 .val            = 'w' | FIO_CLIENT_FLAG,
 194         },
 195         {
 196                 .name           = (char *) "max-jobs",
 197                 .has_arg        = required_argument,
 198                 .val            = 'j' | FIO_CLIENT_FLAG,
 199         },
 200         {
 201                 .name           = (char *) "terse-version",
 202                 .has_arg        = required_argument,
 203                 .val            = 'V' | FIO_CLIENT_FLAG,
 204         },
 205         {
 206                 .name           = (char *) "server",
 207                 .has_arg        = optional_argument,
 208                 .val            = 'S',
 209         },
 210         {       .name           = (char *) "daemonize",
 211                 .has_arg        = required_argument,
 212                 .val            = 'D',
 213         },
 214         {
 215                 .name           = (char *) "client",
 216                 .has_arg        = required_argument,
 217                 .val            = 'C',
 218         },
 219         {
 220                 .name           = (char *) "cpuclock-test",
 221                 .has_arg        = no_argument,
 222                 .val            = 'T',
 223         },
 224         {
 225                 .name           = (char *) "crctest",
 226                 .has_arg        = optional_argument,
 227                 .val            = 'G',
 228         },
 229         {
 230                 .name           = (char *) "idle-prof",
 231                 .has_arg        = required_argument,
 232                 .val            = 'I',
 233         },
 234         {
 235                 .name           = (char *) "status-interval",
 236                 .has_arg        = required_argument,
 237                 .val            = 'L',
 238         },
 239         {
 240                 .name           = NULL,
 241         },
 242 };
 243
 244 void free_threads_shm(void)
 245 {
 246         if (threads) {
 247                 void *tp = threads;
 248 #ifndef CONFIG_NO_SHM
 249                 struct shmid_ds sbuf;
 250
 251                 threads = NULL;
 252                 shmdt(tp);
 253                 shmctl(shm_id, IPC_RMID, &sbuf);
 254                 shm_id = -1;
 255 #else
 256                 threads = NULL;
 257                 free(tp);
 258 #endif
 259         }
 260 }
 261
 262 static void free_shm(void)
 263 {
 264         if (threads) {
 265                 file_hash_exit();
 266                 flow_exit();
 267                 fio_debug_jobp = NULL;
 268                 free_threads_shm();
 269         }
 270
 271         options_free(fio_options, &def_thread);
 272         fio_filelock_exit();
 273         scleanup();
 274 }
 275
 276 /*
 277  * The thread area is shared between the main process and the job
 278  * threads/processes. So setup a shared memory segment that will hold
 279  * all the job info. We use the end of the region for keeping track of
 280  * open files across jobs, for file sharing.
 281  */
 282 static int setup_thread_area(void)
 283 {
 284         void *hash;
 285
 286         if (threads)
 287                 return 0;
 288
 289         /*
 290          * 1024 is too much on some machines, scale max_jobs if
 291          * we get a failure that looks like too large a shm segment
 292          */
 293         do {
 294                 size_t size = max_jobs * sizeof(struct thread_data);
 295
 296                 size += file_hash_size;
 297                 size += sizeof(unsigned int);
 298
 299 #ifndef CONFIG_NO_SHM
 300                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 301                 if (shm_id != -1)
 302                         break;
 303                 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
 304                         perror("shmget");
 305                         break;
 306                 }
 307 #else
 308                 threads = malloc(size);
 309                 if (threads)
 310                         break;
 311 #endif
 312
 313                 max_jobs >>= 1;
 314         } while (max_jobs);
 315
 316 #ifndef CONFIG_NO_SHM
 317         if (shm_id == -1)
 318                 return 1;
 319
 320         threads = shmat(shm_id, NULL, 0);
 321         if (threads == (void *) -1) {
 322                 perror("shmat");
 323                 return 1;
 324         }
 325 #endif
 326
 327         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 328         hash = (void *) threads + max_jobs * sizeof(struct thread_data);
 329         fio_debug_jobp = (void *) hash + file_hash_size;
 330         *fio_debug_jobp = -1;
 331         file_hash_init(hash);
 332
 333         flow_init();
 334
 335         return 0;
 336 }
 337
 338 static void set_cmd_options(struct thread_data *td)
 339 {
 340         struct thread_options *o = &td->o;
 341
 342         if (!o->timeout)
 343                 o->timeout = def_timeout;
 344 }
 345
 346 /*
 347  * Return a free job structure.
 348  */
 349 static struct thread_data *get_new_job(int global, struct thread_data *parent,
 350                                        int preserve_eo, const char *jobname)
 351 {
 352         struct thread_data *td;
 353
 354         if (global) {
 355                 set_cmd_options(&def_thread);
 356                 return &def_thread;
 357         }
 358         if (setup_thread_area()) {
 359                 log_err("error: failed to setup shm segment\n");
 360                 return NULL;
 361         }
 362         if (thread_number >= max_jobs) {
 363                 log_err("error: maximum number of jobs (%d) reached.\n",
 364                                 max_jobs);
 365                 return NULL;
 366         }
 367
 368         td = &threads[thread_number++];
 369         *td = *parent;
 370
 371         td->io_ops = NULL;
 372         if (!preserve_eo)
 373                 td->eo = NULL;
 374
 375         td->o.uid = td->o.gid = -1U;
 376
 377         dup_files(td, parent);
 378         fio_options_mem_dupe(td);
 379
 380         profile_add_hooks(td);
 381
 382         td->thread_number = thread_number;
 383
 384         if (jobname)
 385                 td->o.name = strdup(jobname);
 386
 387         if (!parent->o.group_reporting)
 388                 stat_number++;
 389
 390         set_cmd_options(td);
 391         return td;
 392 }
 393
 394 static void put_job(struct thread_data *td)
 395 {
 396         if (td == &def_thread)
 397                 return;
 398
 399         profile_td_exit(td);
 400         flow_exit_job(td);
 401
 402         if (td->error)
 403                 log_info("fio: %s\n", td->verror);
 404
 405         fio_options_free(td);
 406         if (td->io_ops)
 407                 free_ioengine(td);
 408
 409         if (td->o.name)
 410                 free(td->o.name);
 411
 412         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 413         thread_number--;
 414 }
 415
 416 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 417 {
 418         unsigned int bs = td->o.min_bs[ddir];
 419
 420         assert(ddir_rw(ddir));
 421
 422         if (td->o.rate[ddir])
 423                 td->rate_bps[ddir] = td->o.rate[ddir];
 424         else
 425                 td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs;
 426
 427         if (!td->rate_bps[ddir]) {
 428                 log_err("rate lower than supported\n");
 429                 return -1;
 430         }
 431
 432         td->rate_pending_usleep[ddir] = 0;
 433         return 0;
 434 }
 435
 436 static int setup_rate(struct thread_data *td)
 437 {
 438         int ret = 0;
 439
 440         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
 441                 ret = __setup_rate(td, DDIR_READ);
 442         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
 443                 ret |= __setup_rate(td, DDIR_WRITE);
 444         if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
 445                 ret |= __setup_rate(td, DDIR_TRIM);
 446
 447         return ret;
 448 }
 449
 450 static int fixed_block_size(struct thread_options *o)
 451 {
 452         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 453                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 454                 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
 455                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
 456                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
 457 }
 458
 459
 460 static unsigned long long get_rand_start_delay(struct thread_data *td)
 461 {
 462         unsigned long long delayrange;
 463         unsigned long r;
 464
 465         delayrange = td->o.start_delay_high - td->o.start_delay;
 466
 467         if (td->o.use_os_rand) {
 468                 r = os_random_long(&td->delay_state);
 469                 delayrange = (unsigned long long) ((double) delayrange * (r / (OS_RAND_MAX + 1.0)));
 470         } else {
 471                 r = __rand(&td->__delay_state);
 472                 delayrange = (unsigned long long) ((double) delayrange * (r / (FRAND_MAX + 1.0)));
 473         }
 474
 475         delayrange += td->o.start_delay;
 476         return delayrange;
 477 }
 478
 479 /*
 480  * Lazy way of fixing up options that depend on each other. We could also
 481  * define option callback handlers, but this is easier.
 482  */
 483 static int fixup_options(struct thread_data *td)
 484 {
 485         struct thread_options *o = &td->o;
 486         int ret = 0;
 487
 488 #ifndef FIO_HAVE_PSHARED_MUTEX
 489         if (!o->use_thread) {
 490                 log_info("fio: this platform does not support process shared"
 491                          " mutexes, forcing use of threads. Use the 'thread'"
 492                          " option to get rid of this warning.\n");
 493                 o->use_thread = 1;
 494                 ret = warnings_fatal;
 495         }
 496 #endif
 497
 498         if (o->write_iolog_file && o->read_iolog_file) {
 499                 log_err("fio: read iolog overrides write_iolog\n");
 500                 free(o->write_iolog_file);
 501                 o->write_iolog_file = NULL;
 502                 ret = warnings_fatal;
 503         }
 504
 505         /*
 506          * only really works with 1 file
 507          */
 508         if (o->zone_size && o->open_files > 1)
 509                 o->zone_size = 0;
 510
 511         /*
 512          * If zone_range isn't specified, backward compatibility dictates it
 513          * should be made equal to zone_size.
 514          */
 515         if (o->zone_size && !o->zone_range)
 516                 o->zone_range = o->zone_size;
 517
 518         /*
 519          * Reads can do overwrites, we always need to pre-create the file
 520          */
 521         if (td_read(td) || td_rw(td))
 522                 o->overwrite = 1;
 523
 524         if (!o->min_bs[DDIR_READ])
 525                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
 526         if (!o->max_bs[DDIR_READ])
 527                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 528         if (!o->min_bs[DDIR_WRITE])
 529                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 530         if (!o->max_bs[DDIR_WRITE])
 531                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 532         if (!o->min_bs[DDIR_TRIM])
 533                 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 534         if (!o->max_bs[DDIR_TRIM])
 535                 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 536
 537
 538         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 539         o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
 540
 541         /*
 542          * For random IO, allow blockalign offset other than min_bs.
 543          */
 544         if (!o->ba[DDIR_READ] || !td_random(td))
 545                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
 546         if (!o->ba[DDIR_WRITE] || !td_random(td))
 547                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
 548         if (!o->ba[DDIR_TRIM] || !td_random(td))
 549                 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
 550
 551         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 552             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
 553             o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
 554             !o->norandommap) {
 555                 log_err("fio: Any use of blockalign= turns off randommap\n");
 556                 o->norandommap = 1;
 557                 ret = warnings_fatal;
 558         }
 559
 560         if (!o->file_size_high)
 561                 o->file_size_high = o->file_size_low;
 562
 563         if (o->start_delay_high)
 564                 o->start_delay = get_rand_start_delay(td);
 565
 566         if (o->norandommap && o->verify != VERIFY_NONE
 567             && !fixed_block_size(o))  {
 568                 log_err("fio: norandommap given for variable block sizes, "
 569                         "verify disabled\n");
 570                 o->verify = VERIFY_NONE;
 571                 ret = warnings_fatal;
 572         }
 573         if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
 574                 log_err("fio: bs_unaligned may not work with raw io\n");
 575
 576         /*
 577          * thinktime_spin must be less than thinktime
 578          */
 579         if (o->thinktime_spin > o->thinktime)
 580                 o->thinktime_spin = o->thinktime;
 581
 582         /*
 583          * The low water mark cannot be bigger than the iodepth
 584          */
 585         if (o->iodepth_low > o->iodepth || !o->iodepth_low)
 586                 o->iodepth_low = o->iodepth;
 587
 588         /*
 589          * If batch number isn't set, default to the same as iodepth
 590          */
 591         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 592                 o->iodepth_batch = o->iodepth;
 593
 594         if (o->nr_files > td->files_index)
 595                 o->nr_files = td->files_index;
 596
 597         if (o->open_files > o->nr_files || !o->open_files)
 598                 o->open_files = o->nr_files;
 599
 600         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
 601             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
 602             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 603             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 604                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 605                 ret = 1;
 606         }
 607         if ((o->rate[DDIR_READ] < o->ratemin[DDIR_READ]) ||
 608             (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE]) ||
 609             (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM]) ||
 610             (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ]) ||
 611             (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE]) ||
 612             (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM])) {
 613                 log_err("fio: minimum rate exceeds rate\n");
 614                 ret = 1;
 615         }
 616
 617         if (!o->timeout && o->time_based) {
 618                 log_err("fio: time_based requires a runtime/timeout setting\n");
 619                 o->time_based = 0;
 620                 ret = warnings_fatal;
 621         }
 622
 623         if (o->fill_device && !o->size)
 624                 o->size = -1ULL;
 625
 626         if (o->verify != VERIFY_NONE) {
 627                 if (td_write(td) && o->do_verify && o->numjobs > 1) {
 628                         log_info("Multiple writers may overwrite blocks that "
 629                                 "belong to other jobs. This can cause "
 630                                 "verification failures.\n");
 631                         ret = warnings_fatal;
 632                 }
 633
 634                 o->refill_buffers = 1;
 635                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 636                     !o->verify_interval)
 637                         o->verify_interval = o->min_bs[DDIR_WRITE];
 638         }
 639
 640         if (o->pre_read) {
 641                 o->invalidate_cache = 0;
 642                 if (td->io_ops->flags & FIO_PIPEIO) {
 643                         log_info("fio: cannot pre-read files with an IO engine"
 644                                  " that isn't seekable. Pre-read disabled.\n");
 645                         ret = warnings_fatal;
 646                 }
 647         }
 648
 649         if (!o->unit_base) {
 650                 if (td->io_ops->flags & FIO_BIT_BASED)
 651                         o->unit_base = 1;
 652                 else
 653                         o->unit_base = 8;
 654         }
 655
 656 #ifndef CONFIG_FDATASYNC
 657         if (o->fdatasync_blocks) {
 658                 log_info("fio: this platform does not support fdatasync()"
 659                          " falling back to using fsync().  Use the 'fsync'"
 660                          " option instead of 'fdatasync' to get rid of"
 661                          " this warning\n");
 662                 o->fsync_blocks = o->fdatasync_blocks;
 663                 o->fdatasync_blocks = 0;
 664                 ret = warnings_fatal;
 665         }
 666 #endif
 667
 668 #ifdef WIN32
 669         /*
 670          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 671          * so fail if we're passed those flags
 672          */
 673         if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
 674                 log_err("fio: Windows does not support direct or non-buffered io with"
 675                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 676                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 677                 ret = 1;
 678         }
 679 #endif
 680
 681         /*
 682          * For fully compressible data, just zero them at init time.
 683          * It's faster than repeatedly filling it.
 684          */
 685         if (td->o.compress_percentage == 100) {
 686                 td->o.zero_buffers = 1;
 687                 td->o.compress_percentage = 0;
 688         }
 689
 690         /*
 691          * Using a non-uniform random distribution excludes usage of
 692          * a random map
 693          */
 694         if (td->o.random_distribution != FIO_RAND_DIST_RANDOM)
 695                 td->o.norandommap = 1;
 696
 697         /*
 698          * If size is set but less than the min block size, complain
 699          */
 700         if (o->size && o->size < td_min_bs(td)) {
 701                 log_err("fio: size too small, must be larger than the IO size: %llu\n", (unsigned long long) o->size);
 702                 ret = 1;
 703         }
 704
 705         /*
 706          * O_ATOMIC implies O_DIRECT
 707          */
 708         if (td->o.oatomic)
 709                 td->o.odirect = 1;
 710
 711         /*
 712          * If randseed is set, that overrides randrepeat
 713          */
 714         if (td->o.rand_seed)
 715                 td->o.rand_repeatable = 0;
 716
 717         if ((td->io_ops->flags & FIO_NOEXTEND) && td->o.file_append) {
 718                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
 719                 ret = 1;
 720         }
 721
 722         return ret;
 723 }
 724
 725 /*
 726  * This function leaks the buffer
 727  */
 728 char *fio_uint_to_kmg(unsigned int val)
 729 {
 730         char *buf = malloc(32);
 731         char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
 732         char *p = post;
 733
 734         do {
 735                 if (val & 1023)
 736                         break;
 737
 738                 val >>= 10;
 739                 p++;
 740         } while (*p);
 741
 742         snprintf(buf, 32, "%u%c", val, *p);
 743         return buf;
 744 }
 745
 746 /* External engines are specified by "external:name.o") */
 747 static const char *get_engine_name(const char *str)
 748 {
 749         char *p = strstr(str, ":");
 750
 751         if (!p)
 752                 return str;
 753
 754         p++;
 755         strip_blank_front(&p);
 756         strip_blank_end(p);
 757         return p;
 758 }
 759
 760 static int exists_and_not_file(const char *filename)
 761 {
 762         struct stat sb;
 763
 764         if (lstat(filename, &sb) == -1)
 765                 return 0;
 766
 767         /* \\.\ is the device namespace in Windows, where every file
 768          * is a device node */
 769         if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
 770                 return 0;
 771
 772         return 1;
 773 }
 774
 775 static void td_fill_rand_seeds_os(struct thread_data *td)
 776 {
 777         os_random_seed(td->rand_seeds[FIO_RAND_BS_OFF], &td->bsrange_state);
 778         os_random_seed(td->rand_seeds[FIO_RAND_VER_OFF], &td->verify_state);
 779         os_random_seed(td->rand_seeds[FIO_RAND_MIX_OFF], &td->rwmix_state);
 780
 781         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 782                 os_random_seed(td->rand_seeds[FIO_RAND_FILE_OFF], &td->next_file_state);
 783
 784         os_random_seed(td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], &td->file_size_state);
 785         os_random_seed(td->rand_seeds[FIO_RAND_TRIM_OFF], &td->trim_state);
 786         os_random_seed(td->rand_seeds[FIO_RAND_START_DELAY], &td->delay_state);
 787
 788         if (!td_random(td))
 789                 return;
 790
 791         if (td->o.rand_repeatable)
 792                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
 793
 794         os_random_seed(td->rand_seeds[FIO_RAND_BLOCK_OFF], &td->random_state);
 795
 796         os_random_seed(td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], &td->seq_rand_state[DDIR_READ]);
 797         os_random_seed(td->rand_seeds[FIO_RAND_SEQ_RAND_WRITE_OFF], &td->seq_rand_state[DDIR_WRITE]);
 798         os_random_seed(td->rand_seeds[FIO_RAND_SEQ_RAND_TRIM_OFF], &td->seq_rand_state[DDIR_TRIM]);
 799 }
 800
 801 static void td_fill_rand_seeds_internal(struct thread_data *td)
 802 {
 803         init_rand_seed(&td->__bsrange_state, td->rand_seeds[FIO_RAND_BS_OFF]);
 804         init_rand_seed(&td->__verify_state, td->rand_seeds[FIO_RAND_VER_OFF]);
 805         init_rand_seed(&td->__rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF]);
 806
 807         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 808                 init_rand_seed(&td->__next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF]);
 809
 810         init_rand_seed(&td->__file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF]);
 811         init_rand_seed(&td->__trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF]);
 812         init_rand_seed(&td->__delay_state, td->rand_seeds[FIO_RAND_START_DELAY]);
 813
 814         if (!td_random(td))
 815                 return;
 816
 817         if (td->o.rand_repeatable)
 818                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
 819
 820         init_rand_seed(&td->__random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
 821         init_rand_seed(&td->__seq_rand_state[DDIR_READ], td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF]);
 822         init_rand_seed(&td->__seq_rand_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_SEQ_RAND_WRITE_OFF]);
 823         init_rand_seed(&td->__seq_rand_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_SEQ_RAND_TRIM_OFF]);
 824 }
 825
 826 void td_fill_rand_seeds(struct thread_data *td)
 827 {
 828         if (td->o.allrand_repeatable) {
 829                 for (int i = 0; i < FIO_RAND_NR_OFFS; i++)
 830                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
 831                                 + i;
 832         }
 833
 834         if (td->o.use_os_rand)
 835                 td_fill_rand_seeds_os(td);
 836         else
 837                 td_fill_rand_seeds_internal(td);
 838
 839         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF]);
 840 }
 841
 842 /*
 843  * Initializes the ioengine configured for a job, if it has not been done so
 844  * already.
 845  */
 846 int ioengine_load(struct thread_data *td)
 847 {
 848         const char *engine;
 849
 850         /*
 851          * Engine has already been loaded.
 852          */
 853         if (td->io_ops)
 854                 return 0;
 855         if (!td->o.ioengine) {
 856                 log_err("fio: internal fault, no IO engine specified\n");
 857                 return 1;
 858         }
 859
 860         engine = get_engine_name(td->o.ioengine);
 861         td->io_ops = load_ioengine(td, engine);
 862         if (!td->io_ops) {
 863                 log_err("fio: failed to load engine %s\n", engine);
 864                 return 1;
 865         }
 866
 867         if (td->io_ops->option_struct_size && td->io_ops->options) {
 868                 /*
 869                  * In cases where td->eo is set, clone it for a child thread.
 870                  * This requires that the parent thread has the same ioengine,
 871                  * but that requirement must be enforced by the code which
 872                  * cloned the thread.
 873                  */
 874                 void *origeo = td->eo;
 875                 /*
 876                  * Otherwise use the default thread options.
 877                  */
 878                 if (!origeo && td != &def_thread && def_thread.eo &&
 879                     def_thread.io_ops->options == td->io_ops->options)
 880                         origeo = def_thread.eo;
 881
 882                 options_init(td->io_ops->options);
 883                 td->eo = malloc(td->io_ops->option_struct_size);
 884                 /*
 885                  * Use the default thread as an option template if this uses the
 886                  * same options structure and there are non-default options
 887                  * used.
 888                  */
 889                 if (origeo) {
 890                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
 891                         options_mem_dupe(td->eo, td->io_ops->options);
 892                 } else {
 893                         memset(td->eo, 0, td->io_ops->option_struct_size);
 894                         fill_default_options(td->eo, td->io_ops->options);
 895                 }
 896                 *(struct thread_data **)td->eo = td;
 897         }
 898
 899         return 0;
 900 }
 901
 902 static void init_flags(struct thread_data *td)
 903 {
 904         struct thread_options *o = &td->o;
 905
 906         if (o->verify_backlog)
 907                 td->flags |= TD_F_VER_BACKLOG;
 908         if (o->trim_backlog)
 909                 td->flags |= TD_F_TRIM_BACKLOG;
 910         if (o->read_iolog_file)
 911                 td->flags |= TD_F_READ_IOLOG;
 912         if (o->refill_buffers)
 913                 td->flags |= TD_F_REFILL_BUFFERS;
 914         if (o->scramble_buffers)
 915                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
 916         if (o->verify != VERIFY_NONE)
 917                 td->flags |= TD_F_VER_NONE;
 918 }
 919
 920 static int setup_random_seeds(struct thread_data *td)
 921 {
 922         unsigned long seed;
 923         unsigned int i;
 924
 925         if (!td->o.rand_repeatable && !td->o.rand_seed)
 926                 return init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds));
 927
 928         if (!td->o.rand_seed)
 929                 seed = 0x89;
 930         else
 931                 seed = td->o.rand_seed;
 932
 933         for (i = 0; i < 4; i++)
 934                 seed *= 0x9e370001UL;
 935
 936         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
 937                 td->rand_seeds[i] = seed;
 938                 seed *= 0x9e370001UL;
 939         }
 940
 941         td_fill_rand_seeds(td);
 942         return 0;
 943 }
 944
 945 enum {
 946         FPRE_NONE = 0,
 947         FPRE_JOBNAME,
 948         FPRE_JOBNUM,
 949         FPRE_FILENUM
 950 };
 951
 952 static struct fpre_keyword {
 953         const char *keyword;
 954         size_t strlen;
 955         int key;
 956 } fpre_keywords[] = {
 957         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
 958         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
 959         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
 960         { .keyword = NULL, },
 961         };
 962
 963 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
 964                            const char *jobname, int jobnum, int filenum)
 965 {
 966         struct fpre_keyword *f;
 967         char copy[PATH_MAX];
 968         size_t dst_left = PATH_MAX - 1;
 969
 970         if (!o->filename_format || !strlen(o->filename_format)) {
 971                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
 972                 return NULL;
 973         }
 974
 975         for (f = &fpre_keywords[0]; f->keyword; f++)
 976                 f->strlen = strlen(f->keyword);
 977
 978         buf[buf_size - 1] = '\0';
 979         strncpy(buf, o->filename_format, buf_size - 1);
 980
 981         memset(copy, 0, sizeof(copy));
 982         for (f = &fpre_keywords[0]; f->keyword; f++) {
 983                 do {
 984                         size_t pre_len, post_start = 0;
 985                         char *str, *dst = copy;
 986
 987                         str = strcasestr(buf, f->keyword);
 988                         if (!str)
 989                                 break;
 990
 991                         pre_len = str - buf;
 992                         if (strlen(str) != f->strlen)
 993                                 post_start = pre_len + f->strlen;
 994
 995                         if (pre_len) {
 996                                 strncpy(dst, buf, pre_len);
 997                                 dst += pre_len;
 998                                 dst_left -= pre_len;
 999                         }
1000
1001                         switch (f->key) {
1002                         case FPRE_JOBNAME: {
1003                                 int ret;
1004
1005                                 ret = snprintf(dst, dst_left, "%s", jobname);
1006                                 if (ret < 0)
1007                                         break;
1008                                 dst += ret;
1009                                 dst_left -= ret;
1010                                 break;
1011                                 }
1012                         case FPRE_JOBNUM: {
1013                                 int ret;
1014
1015                                 ret = snprintf(dst, dst_left, "%d", jobnum);
1016                                 if (ret < 0)
1017                                         break;
1018                                 dst += ret;
1019                                 dst_left -= ret;
1020                                 break;
1021                                 }
1022                         case FPRE_FILENUM: {
1023                                 int ret;
1024
1025                                 ret = snprintf(dst, dst_left, "%d", filenum);
1026                                 if (ret < 0)
1027                                         break;
1028                                 dst += ret;
1029                                 dst_left -= ret;
1030                                 break;
1031                                 }
1032                         default:
1033                                 assert(0);
1034                                 break;
1035                         }
1036
1037                         if (post_start)
1038                                 strncpy(dst, buf + post_start, dst_left);
1039
1040                         strncpy(buf, copy, buf_size - 1);
1041                 } while (1);
1042         }
1043
1044         return buf;
1045 }
1046
1047 int parse_dryrun(void)
1048 {
1049         return dump_cmdline || parse_only;
1050 }
1051
1052 /*
1053  * Adds a job to the list of things todo. Sanitizes the various options
1054  * to make sure we don't have conflicts, and initializes various
1055  * members of td.
1056  */
1057 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1058                    int recursed, int client_type)
1059 {
1060         unsigned int i;
1061         char fname[PATH_MAX];
1062         int numjobs, file_alloced;
1063         struct thread_options *o = &td->o;
1064         char logname[PATH_MAX + 32];
1065
1066         /*
1067          * the def_thread is just for options, it's not a real job
1068          */
1069         if (td == &def_thread)
1070                 return 0;
1071
1072         init_flags(td);
1073
1074         /*
1075          * if we are just dumping the output command line, don't add the job
1076          */
1077         if (parse_dryrun()) {
1078                 put_job(td);
1079                 return 0;
1080         }
1081
1082         td->client_type = client_type;
1083
1084         if (profile_td_init(td))
1085                 goto err;
1086
1087         if (ioengine_load(td))
1088                 goto err;
1089
1090         if (o->odirect)
1091                 td->io_ops->flags |= FIO_RAWIO;
1092
1093         file_alloced = 0;
1094         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1095                 file_alloced = 1;
1096
1097                 if (o->nr_files == 1 && exists_and_not_file(jobname))
1098                         add_file(td, jobname, job_add_num, 0);
1099                 else {
1100                         for (i = 0; i < o->nr_files; i++)
1101                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1102                 }
1103         }
1104
1105         if (fixup_options(td))
1106                 goto err;
1107
1108         flow_init_job(td);
1109
1110         /*
1111          * IO engines only need this for option callbacks, and the address may
1112          * change in subprocesses.
1113          */
1114         if (td->eo)
1115                 *(struct thread_data **)td->eo = NULL;
1116
1117         if (td->io_ops->flags & FIO_DISKLESSIO) {
1118                 struct fio_file *f;
1119
1120                 for_each_file(td, f, i)
1121                         f->real_file_size = -1ULL;
1122         }
1123
1124         td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
1125
1126         td->ts.clat_percentiles = o->clat_percentiles;
1127         td->ts.percentile_precision = o->percentile_precision;
1128         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1129
1130         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1131                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1132                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1133                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1134                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1135         }
1136         td->ddir_seq_nr = o->ddir_seq_nr;
1137
1138         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1139                 prev_group_jobs = 0;
1140                 groupid++;
1141         }
1142
1143         td->groupid = groupid;
1144         prev_group_jobs++;
1145
1146         if (setup_random_seeds(td)) {
1147                 td_verror(td, errno, "init_random_state");
1148                 goto err;
1149         }
1150
1151         if (setup_rate(td))
1152                 goto err;
1153
1154         if (o->lat_log_file) {
1155                 struct log_params p = {
1156                         .td = td,
1157                         .avg_msec = o->log_avg_msec,
1158                         .log_type = IO_LOG_TYPE_LAT,
1159                         .log_offset = o->log_offset,
1160                         .log_gz = o->log_gz,
1161                         .log_gz_store = o->log_gz_store,
1162                 };
1163                 const char *suf;
1164
1165                 if (p.log_gz_store)
1166                         suf = "log.fz";
1167                 else
1168                         suf = "log";
1169
1170                 snprintf(logname, sizeof(logname), "%s_lat.%s",
1171                                 o->lat_log_file, suf);
1172                 setup_log(&td->lat_log, &p, logname);
1173                 snprintf(logname, sizeof(logname), "%s_slat.%s",
1174                                 o->lat_log_file, suf);
1175                 setup_log(&td->slat_log, &p, logname);
1176                 snprintf(logname, sizeof(logname), "%s_clat.%s",
1177                                 o->lat_log_file, suf);
1178                 setup_log(&td->clat_log, &p, logname);
1179         }
1180         if (o->bw_log_file) {
1181                 struct log_params p = {
1182                         .td = td,
1183                         .avg_msec = o->log_avg_msec,
1184                         .log_type = IO_LOG_TYPE_BW,
1185                         .log_offset = o->log_offset,
1186                         .log_gz = o->log_gz,
1187                         .log_gz_store = o->log_gz_store,
1188                 };
1189                 const char *suf;
1190
1191                 if (p.log_gz_store)
1192                         suf = "log.fz";
1193                 else
1194                         suf = "log";
1195
1196                 snprintf(logname, sizeof(logname), "%s_bw.%s",
1197                                 o->bw_log_file, suf);
1198                 setup_log(&td->bw_log, &p, logname);
1199         }
1200         if (o->iops_log_file) {
1201                 struct log_params p = {
1202                         .td = td,
1203                         .avg_msec = o->log_avg_msec,
1204                         .log_type = IO_LOG_TYPE_IOPS,
1205                         .log_offset = o->log_offset,
1206                         .log_gz = o->log_gz,
1207                         .log_gz_store = o->log_gz_store,
1208                 };
1209                 const char *suf;
1210
1211                 if (p.log_gz_store)
1212                         suf = "log.fz";
1213                 else
1214                         suf = "log";
1215
1216                 snprintf(logname, sizeof(logname), "%s_iops.%s",
1217                                 o->iops_log_file, suf);
1218                 setup_log(&td->iops_log, &p, logname);
1219         }
1220
1221         if (!o->name)
1222                 o->name = strdup(jobname);
1223
1224         if (output_format == FIO_OUTPUT_NORMAL) {
1225                 if (!job_add_num) {
1226                         if (is_backend && !recursed)
1227                                 fio_server_send_add_job(td);
1228
1229                         if (!(td->io_ops->flags & FIO_NOIO)) {
1230                                 char *c1, *c2, *c3, *c4;
1231                                 char *c5 = NULL, *c6 = NULL;
1232
1233                                 c1 = fio_uint_to_kmg(o->min_bs[DDIR_READ]);
1234                                 c2 = fio_uint_to_kmg(o->max_bs[DDIR_READ]);
1235                                 c3 = fio_uint_to_kmg(o->min_bs[DDIR_WRITE]);
1236                                 c4 = fio_uint_to_kmg(o->max_bs[DDIR_WRITE]);
1237
1238                                 if (!o->bs_is_seq_rand) {
1239                                         c5 = fio_uint_to_kmg(o->min_bs[DDIR_TRIM]);
1240                                         c6 = fio_uint_to_kmg(o->max_bs[DDIR_TRIM]);
1241                                 }
1242
1243                                 log_info("%s: (g=%d): rw=%s, ", td->o.name,
1244                                                         td->groupid,
1245                                                         ddir_str(o->td_ddir));
1246
1247                                 if (o->bs_is_seq_rand)
1248                                         log_info("bs(seq/rand)=%s-%s/%s-%s, ",
1249                                                         c1, c2, c3, c4);
1250                                 else
1251                                         log_info("bs=%s-%s/%s-%s/%s-%s, ",
1252                                                         c1, c2, c3, c4, c5, c6);
1253
1254                                 log_info("ioengine=%s, iodepth=%u\n",
1255                                                 td->io_ops->name, o->iodepth);
1256
1257                                 free(c1);
1258                                 free(c2);
1259                                 free(c3);
1260                                 free(c4);
1261                                 free(c5);
1262                                 free(c6);
1263                         }
1264                 } else if (job_add_num == 1)
1265                         log_info("...\n");
1266         }
1267
1268         /*
1269          * recurse add identical jobs, clear numjobs and stonewall options
1270          * as they don't apply to sub-jobs
1271          */
1272         numjobs = o->numjobs;
1273         while (--numjobs) {
1274                 struct thread_data *td_new = get_new_job(0, td, 1, jobname);
1275
1276                 if (!td_new)
1277                         goto err;
1278
1279                 td_new->o.numjobs = 1;
1280                 td_new->o.stonewall = 0;
1281                 td_new->o.new_group = 0;
1282
1283                 if (file_alloced) {
1284                         if (td_new->files) {
1285                                 struct fio_file *f;
1286                                 for_each_file(td_new, f, i) {
1287                                         if (f->file_name)
1288                                                 sfree(f->file_name);
1289                                         sfree(f);
1290                                 }
1291                                 free(td_new->files);
1292                                 td_new->files = NULL;
1293                         }
1294                         td_new->files_index = 0;
1295                         td_new->files_size = 0;
1296                         if (td_new->o.filename) {
1297                                 free(td_new->o.filename);
1298                                 td_new->o.filename = NULL;
1299                         }
1300                 }
1301
1302                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1303                         goto err;
1304         }
1305
1306         return 0;
1307 err:
1308         put_job(td);
1309         return -1;
1310 }
1311
1312 /*
1313  * Parse as if 'o' was a command line
1314  */
1315 void add_job_opts(const char **o, int client_type)
1316 {
1317         struct thread_data *td, *td_parent;
1318         int i, in_global = 1;
1319         char jobname[32];
1320
1321         i = 0;
1322         td_parent = td = NULL;
1323         while (o[i]) {
1324                 if (!strncmp(o[i], "name", 4)) {
1325                         in_global = 0;
1326                         if (td)
1327                                 add_job(td, jobname, 0, 0, client_type);
1328                         td = NULL;
1329                         sprintf(jobname, "%s", o[i] + 5);
1330                 }
1331                 if (in_global && !td_parent)
1332                         td_parent = get_new_job(1, &def_thread, 0, jobname);
1333                 else if (!in_global && !td) {
1334                         if (!td_parent)
1335                                 td_parent = &def_thread;
1336                         td = get_new_job(0, td_parent, 0, jobname);
1337                 }
1338                 if (in_global)
1339                         fio_options_parse(td_parent, (char **) &o[i], 1, 0);
1340                 else
1341                         fio_options_parse(td, (char **) &o[i], 1, 0);
1342                 i++;
1343         }
1344
1345         if (td)
1346                 add_job(td, jobname, 0, 0, client_type);
1347 }
1348
1349 static int skip_this_section(const char *name)
1350 {
1351         int i;
1352
1353         if (!nr_job_sections)
1354                 return 0;
1355         if (!strncmp(name, "global", 6))
1356                 return 0;
1357
1358         for (i = 0; i < nr_job_sections; i++)
1359                 if (!strcmp(job_sections[i], name))
1360                         return 0;
1361
1362         return 1;
1363 }
1364
1365 static int is_empty_or_comment(char *line)
1366 {
1367         unsigned int i;
1368
1369         for (i = 0; i < strlen(line); i++) {
1370                 if (line[i] == ';')
1371                         return 1;
1372                 if (line[i] == '#')
1373                         return 1;
1374                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1375                         return 0;
1376         }
1377
1378         return 1;
1379 }
1380
1381 /*
1382  * This is our [ini] type file parser.
1383  */
1384 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
1385 {
1386         unsigned int global;
1387         struct thread_data *td;
1388         char *string, *name;
1389         FILE *f;
1390         char *p;
1391         int ret = 0, stonewall;
1392         int first_sect = 1;
1393         int skip_fgets = 0;
1394         int inside_skip = 0;
1395         char **opts;
1396         int i, alloc_opts, num_opts;
1397
1398         if (is_buf)
1399                 f = NULL;
1400         else {
1401                 if (!strcmp(file, "-"))
1402                         f = stdin;
1403                 else
1404                         f = fopen(file, "r");
1405
1406                 if (!f) {
1407                         perror("fopen job file");
1408                         return 1;
1409                 }
1410         }
1411
1412         string = malloc(4096);
1413
1414         /*
1415          * it's really 256 + small bit, 280 should suffice
1416          */
1417         name = malloc(280);
1418         memset(name, 0, 280);
1419
1420         alloc_opts = 8;
1421         opts = malloc(sizeof(char *) * alloc_opts);
1422         num_opts = 0;
1423
1424         stonewall = stonewall_flag;
1425         do {
1426                 /*
1427                  * if skip_fgets is set, we already have loaded a line we
1428                  * haven't handled.
1429                  */
1430                 if (!skip_fgets) {
1431                         if (is_buf)
1432                                 p = strsep(&file, "\n");
1433                         else
1434                                 p = fgets(string, 4096, f);
1435                         if (!p)
1436                                 break;
1437                 }
1438
1439                 skip_fgets = 0;
1440                 strip_blank_front(&p);
1441                 strip_blank_end(p);
1442
1443                 if (is_empty_or_comment(p))
1444                         continue;
1445                 if (sscanf(p, "[%255[^\n]]", name) != 1) {
1446                         if (inside_skip)
1447                                 continue;
1448                         log_err("fio: option <%s> outside of [] job section\n",
1449                                                                         p);
1450                         break;
1451                 }
1452
1453                 name[strlen(name) - 1] = '\0';
1454
1455                 if (skip_this_section(name)) {
1456                         inside_skip = 1;
1457                         continue;
1458                 } else
1459                         inside_skip = 0;
1460
1461                 global = !strncmp(name, "global", 6);
1462
1463                 if (dump_cmdline) {
1464                         if (first_sect)
1465                                 log_info("fio ");
1466                         if (!global)
1467                                 log_info("--name=%s ", name);
1468                         first_sect = 0;
1469                 }
1470
1471                 td = get_new_job(global, &def_thread, 0, name);
1472                 if (!td) {
1473                         ret = 1;
1474                         break;
1475                 }
1476
1477                 /*
1478                  * Separate multiple job files by a stonewall
1479                  */
1480                 if (!global && stonewall) {
1481                         td->o.stonewall = stonewall;
1482                         stonewall = 0;
1483                 }
1484
1485                 num_opts = 0;
1486                 memset(opts, 0, alloc_opts * sizeof(char *));
1487
1488                 while (1) {
1489                         if (is_buf)
1490                                 p = strsep(&file, "\n");
1491                         else
1492                                 p = fgets(string, 4096, f);
1493                         if (!p)
1494                                 break;
1495
1496                         if (is_empty_or_comment(p))
1497                                 continue;
1498
1499                         strip_blank_front(&p);
1500
1501                         /*
1502                          * new section, break out and make sure we don't
1503                          * fgets() a new line at the top.
1504                          */
1505                         if (p[0] == '[') {
1506                                 skip_fgets = 1;
1507                                 break;
1508                         }
1509
1510                         strip_blank_end(p);
1511
1512                         if (num_opts == alloc_opts) {
1513                                 alloc_opts <<= 1;
1514                                 opts = realloc(opts,
1515                                                 alloc_opts * sizeof(char *));
1516                         }
1517
1518                         opts[num_opts] = strdup(p);
1519                         num_opts++;
1520                 }
1521
1522                 ret = fio_options_parse(td, opts, num_opts, dump_cmdline);
1523                 if (!ret)
1524                         ret = add_job(td, name, 0, 0, type);
1525                 else {
1526                         log_err("fio: job %s dropped\n", name);
1527                         put_job(td);
1528                 }
1529
1530                 for (i = 0; i < num_opts; i++)
1531                         free(opts[i]);
1532                 num_opts = 0;
1533         } while (!ret);
1534
1535         if (dump_cmdline)
1536                 log_info("\n");
1537
1538         i = 0;
1539         while (i < nr_job_sections) {
1540                 free(job_sections[i]);
1541                 i++;
1542         }
1543
1544         free(string);
1545         free(name);
1546         free(opts);
1547         if (!is_buf && f != stdin)
1548                 fclose(f);
1549         return ret;
1550 }
1551
1552 static int fill_def_thread(void)
1553 {
1554         memset(&def_thread, 0, sizeof(def_thread));
1555
1556         fio_getaffinity(getpid(), &def_thread.o.cpumask);
1557         def_thread.o.error_dump = 1;
1558
1559         /*
1560          * fill default options
1561          */
1562         fio_fill_default_options(&def_thread);
1563         return 0;
1564 }
1565
1566 static void usage(const char *name)
1567 {
1568         printf("%s\n", fio_version_string);
1569         printf("%s [options] [job options] <job file(s)>\n", name);
1570         printf("  --debug=options\tEnable debug logging. May be one/more of:\n"
1571                 "\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
1572                 "\t\t\tdiskutil,job,mutex,profile,time,net,rate\n");
1573         printf("  --parse-only\t\tParse options only, don't start any IO\n");
1574         printf("  --output\t\tWrite output to file\n");
1575         printf("  --runtime\t\tRuntime in seconds\n");
1576         printf("  --bandwidth-log\tGenerate per-job bandwidth logs\n");
1577         printf("  --minimal\t\tMinimal (terse) output\n");
1578         printf("  --output-format=x\tOutput format (terse,json,normal)\n");
1579         printf("  --terse-version=x\tSet terse version output format to 'x'\n");
1580         printf("  --version\t\tPrint version info and exit\n");
1581         printf("  --help\t\tPrint this page\n");
1582         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
1583         printf("  --crctest\t\tTest speed of checksum functions\n");
1584         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
1585                 " them\n");
1586         printf("  --enghelp=engine\tPrint ioengine help, or list"
1587                 " available ioengines\n");
1588         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
1589                 " cmd\n");
1590         printf("  --showcmd\t\tTurn a job file into command line options\n");
1591         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
1592         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
1593         printf("  --eta-newline=time\tForce a new line for every 'time'");
1594         printf(" period passed\n");
1595         printf("  --status-interval=t\tForce full status dump every");
1596         printf(" 't' period passed\n");
1597         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
1598                 " writes\n");
1599         printf("  --section=name\tOnly run specified section in job file\n");
1600         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
1601                 " (def 1024)\n");
1602         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
1603         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1604         printf("  --server=args\t\tStart a backend fio server\n");
1605         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
1606         printf("  --client=hostname\tTalk to remote backend fio server at hostname\n");
1607         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
1608                 "\t\t\t(option=system,percpu) or run unit work\n"
1609                 "\t\t\tcalibration only (option=calibrate)\n");
1610 #ifdef CONFIG_ZLIB
1611         printf("  --inflate-log=log\tInflate and output compressed log\n");
1612 #endif
1613         printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1614         printf("\n                   Jens Axboe <jaxboe@fusionio.com>");
1615         printf("\n                   Jens Axboe <axboe@fb.com>\n");
1616 }
1617
1618 #ifdef FIO_INC_DEBUG
1619 struct debug_level debug_levels[] = {
1620         { .name = "process",
1621           .help = "Process creation/exit logging",
1622           .shift = FD_PROCESS,
1623         },
1624         { .name = "file",
1625           .help = "File related action logging",
1626           .shift = FD_FILE,
1627         },
1628         { .name = "io",
1629           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
1630           .shift = FD_IO,
1631         },
1632         { .name = "mem",
1633           .help = "Memory allocation/freeing logging",
1634           .shift = FD_MEM,
1635         },
1636         { .name = "blktrace",
1637           .help = "blktrace action logging",
1638           .shift = FD_BLKTRACE,
1639         },
1640         { .name = "verify",
1641           .help = "IO verification action logging",
1642           .shift = FD_VERIFY,
1643         },
1644         { .name = "random",
1645           .help = "Random generation logging",
1646           .shift = FD_RANDOM,
1647         },
1648         { .name = "parse",
1649           .help = "Parser logging",
1650           .shift = FD_PARSE,
1651         },
1652         { .name = "diskutil",
1653           .help = "Disk utility logging actions",
1654           .shift = FD_DISKUTIL,
1655         },
1656         { .name = "job",
1657           .help = "Logging related to creating/destroying jobs",
1658           .shift = FD_JOB,
1659         },
1660         { .name = "mutex",
1661           .help = "Mutex logging",
1662           .shift = FD_MUTEX
1663         },
1664         { .name = "profile",
1665           .help = "Logging related to profiles",
1666           .shift = FD_PROFILE,
1667         },
1668         { .name = "time",
1669           .help = "Logging related to time keeping functions",
1670           .shift = FD_TIME,
1671         },
1672         { .name = "net",
1673           .help = "Network logging",
1674           .shift = FD_NET,
1675         },
1676         { .name = "rate",
1677           .help = "Rate logging",
1678           .shift = FD_RATE,
1679         },
1680         { .name = NULL, },
1681 };
1682
1683 static int set_debug(const char *string)
1684 {
1685         struct debug_level *dl;
1686         char *p = (char *) string;
1687         char *opt;
1688         int i;
1689
1690         if (!strcmp(string, "?") || !strcmp(string, "help")) {
1691                 log_info("fio: dumping debug options:");
1692                 for (i = 0; debug_levels[i].name; i++) {
1693                         dl = &debug_levels[i];
1694                         log_info("%s,", dl->name);
1695                 }
1696                 log_info("all\n");
1697                 return 1;
1698         }
1699
1700         while ((opt = strsep(&p, ",")) != NULL) {
1701                 int found = 0;
1702
1703                 if (!strncmp(opt, "all", 3)) {
1704                         log_info("fio: set all debug options\n");
1705                         fio_debug = ~0UL;
1706                         continue;
1707                 }
1708
1709                 for (i = 0; debug_levels[i].name; i++) {
1710                         dl = &debug_levels[i];
1711                         found = !strncmp(opt, dl->name, strlen(dl->name));
1712                         if (!found)
1713                                 continue;
1714
1715                         if (dl->shift == FD_JOB) {
1716                                 opt = strchr(opt, ':');
1717                                 if (!opt) {
1718                                         log_err("fio: missing job number\n");
1719                                         break;
1720                                 }
1721                                 opt++;
1722                                 fio_debug_jobno = atoi(opt);
1723                                 log_info("fio: set debug jobno %d\n",
1724                                                         fio_debug_jobno);
1725                         } else {
1726                                 log_info("fio: set debug option %s\n", opt);
1727                                 fio_debug |= (1UL << dl->shift);
1728                         }
1729                         break;
1730                 }
1731
1732                 if (!found)
1733                         log_err("fio: debug mask %s not found\n", opt);
1734         }
1735         return 0;
1736 }
1737 #else
1738 static int set_debug(const char *string)
1739 {
1740         log_err("fio: debug tracing not included in build\n");
1741         return 1;
1742 }
1743 #endif
1744
1745 static void fio_options_fill_optstring(void)
1746 {
1747         char *ostr = cmd_optstr;
1748         int i, c;
1749
1750         c = i = 0;
1751         while (l_opts[i].name) {
1752                 ostr[c++] = l_opts[i].val;
1753                 if (l_opts[i].has_arg == required_argument)
1754                         ostr[c++] = ':';
1755                 else if (l_opts[i].has_arg == optional_argument) {
1756                         ostr[c++] = ':';
1757                         ostr[c++] = ':';
1758                 }
1759                 i++;
1760         }
1761         ostr[c] = '\0';
1762 }
1763
1764 static int client_flag_set(char c)
1765 {
1766         int i;
1767
1768         i = 0;
1769         while (l_opts[i].name) {
1770                 int val = l_opts[i].val;
1771
1772                 if (c == (val & 0xff))
1773                         return (val & FIO_CLIENT_FLAG);
1774
1775                 i++;
1776         }
1777
1778         return 0;
1779 }
1780
1781 static void parse_cmd_client(void *client, char *opt)
1782 {
1783         fio_client_add_cmd_option(client, opt);
1784 }
1785
1786 int parse_cmd_line(int argc, char *argv[], int client_type)
1787 {
1788         struct thread_data *td = NULL;
1789         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1790         char *ostr = cmd_optstr;
1791         void *pid_file = NULL;
1792         void *cur_client = NULL;
1793         int backend = 0;
1794
1795         /*
1796          * Reset optind handling, since we may call this multiple times
1797          * for the backend.
1798          */
1799         optind = 1;
1800
1801         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1802                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1803                         parse_cmd_client(cur_client, argv[optind - 1]);
1804                         c &= ~FIO_CLIENT_FLAG;
1805                 }
1806
1807                 switch (c) {
1808                 case 'a':
1809                         smalloc_pool_size = atoi(optarg);
1810                         break;
1811                 case 't':
1812                         if (check_str_time(optarg, &def_timeout, 1)) {
1813                                 log_err("fio: failed parsing time %s\n", optarg);
1814                                 do_exit++;
1815                                 exit_val = 1;
1816                         }
1817                         break;
1818                 case 'l':
1819                         log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
1820                         do_exit++;
1821                         exit_val = 1;
1822                         break;
1823                 case 'b':
1824                         write_bw_log = 1;
1825                         break;
1826                 case 'o':
1827                         if (f_out && f_out != stdout)
1828                                 fclose(f_out);
1829
1830                         f_out = fopen(optarg, "w+");
1831                         if (!f_out) {
1832                                 perror("fopen output");
1833                                 exit(1);
1834                         }
1835                         f_err = f_out;
1836                         break;
1837                 case 'm':
1838                         output_format = FIO_OUTPUT_TERSE;
1839                         break;
1840                 case 'F':
1841                         if (!optarg) {
1842                                 log_err("fio: missing --output-format argument\n");
1843                                 exit_val = 1;
1844                                 do_exit++;
1845                                 break;
1846                         }
1847                         if (!strcmp(optarg, "minimal") ||
1848                             !strcmp(optarg, "terse") ||
1849                             !strcmp(optarg, "csv"))
1850                                 output_format = FIO_OUTPUT_TERSE;
1851                         else if (!strcmp(optarg, "json"))
1852                                 output_format = FIO_OUTPUT_JSON;
1853                         else
1854                                 output_format = FIO_OUTPUT_NORMAL;
1855                         break;
1856                 case 'f':
1857                         append_terse_output = 1;
1858                         break;
1859                 case 'h':
1860                         did_arg = 1;
1861                         if (!cur_client) {
1862                                 usage(argv[0]);
1863                                 do_exit++;
1864                         }
1865                         break;
1866                 case 'c':
1867                         did_arg = 1;
1868                         if (!cur_client) {
1869                                 fio_show_option_help(optarg);
1870                                 do_exit++;
1871                         }
1872                         break;
1873                 case 'i':
1874                         did_arg = 1;
1875                         if (!cur_client) {
1876                                 fio_show_ioengine_help(optarg);
1877                                 do_exit++;
1878                         }
1879                         break;
1880                 case 's':
1881                         did_arg = 1;
1882                         dump_cmdline = 1;
1883                         break;
1884                 case 'r':
1885                         read_only = 1;
1886                         break;
1887                 case 'v':
1888                         did_arg = 1;
1889                         if (!cur_client) {
1890                                 log_info("%s\n", fio_version_string);
1891                                 do_exit++;
1892                         }
1893                         break;
1894                 case 'V':
1895                         terse_version = atoi(optarg);
1896                         if (!(terse_version == 2 || terse_version == 3 ||
1897                              terse_version == 4)) {
1898                                 log_err("fio: bad terse version format\n");
1899                                 exit_val = 1;
1900                                 do_exit++;
1901                         }
1902                         break;
1903                 case 'e':
1904                         if (!strcmp("always", optarg))
1905                                 eta_print = FIO_ETA_ALWAYS;
1906                         else if (!strcmp("never", optarg))
1907                                 eta_print = FIO_ETA_NEVER;
1908                         break;
1909                 case 'E': {
1910                         long long t = 0;
1911
1912                         if (str_to_decimal(optarg, &t, 0, NULL, 1)) {
1913                                 log_err("fio: failed parsing eta time %s\n", optarg);
1914                                 exit_val = 1;
1915                                 do_exit++;
1916                         }
1917                         eta_new_line = t;
1918                         break;
1919                         }
1920                 case 'd':
1921                         if (set_debug(optarg))
1922                                 do_exit++;
1923                         break;
1924                 case 'P':
1925                         did_arg = 1;
1926                         parse_only = 1;
1927                         break;
1928                 case 'x': {
1929                         size_t new_size;
1930
1931                         if (!strcmp(optarg, "global")) {
1932                                 log_err("fio: can't use global as only "
1933                                         "section\n");
1934                                 do_exit++;
1935                                 exit_val = 1;
1936                                 break;
1937                         }
1938                         new_size = (nr_job_sections + 1) * sizeof(char *);
1939                         job_sections = realloc(job_sections, new_size);
1940                         job_sections[nr_job_sections] = strdup(optarg);
1941                         nr_job_sections++;
1942                         break;
1943                         }
1944 #ifdef CONFIG_ZLIB
1945                 case 'X':
1946                         exit_val = iolog_file_inflate(optarg);
1947                         did_arg++;
1948                         do_exit++;
1949                         break;
1950 #endif
1951                 case 'p':
1952                         did_arg = 1;
1953                         if (exec_profile)
1954                                 free(exec_profile);
1955                         exec_profile = strdup(optarg);
1956                         break;
1957                 case FIO_GETOPT_JOB: {
1958                         const char *opt = l_opts[lidx].name;
1959                         char *val = optarg;
1960
1961                         if (!strncmp(opt, "name", 4) && td) {
1962                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
1963                                 if (ret)
1964                                         goto out_free;
1965                                 td = NULL;
1966                                 did_arg = 1;
1967                         }
1968                         if (!td) {
1969                                 int is_section = !strncmp(opt, "name", 4);
1970                                 int global = 0;
1971
1972                                 if (!is_section || !strncmp(val, "global", 6))
1973                                         global = 1;
1974
1975                                 if (is_section && skip_this_section(val))
1976                                         continue;
1977
1978                                 td = get_new_job(global, &def_thread, 1, NULL);
1979                                 if (!td || ioengine_load(td)) {
1980                                         if (td) {
1981                                                 put_job(td);
1982                                                 td = NULL;
1983                                         }
1984                                         do_exit++;
1985                                         break;
1986                                 }
1987                                 fio_options_set_ioengine_opts(l_opts, td);
1988                         }
1989
1990                         if ((!val || !strlen(val)) &&
1991                             l_opts[lidx].has_arg == required_argument) {
1992                                 log_err("fio: option %s requires an argument\n", opt);
1993                                 ret = 1;
1994                         } else
1995                                 ret = fio_cmd_option_parse(td, opt, val);
1996
1997                         if (ret) {
1998                                 if (td) {
1999                                         put_job(td);
2000                                         td = NULL;
2001                                 }
2002                                 do_exit++;
2003                         }
2004
2005                         if (!ret && !strcmp(opt, "ioengine")) {
2006                                 free_ioengine(td);
2007                                 if (ioengine_load(td)) {
2008                                         put_job(td);
2009                                         td = NULL;
2010                                         do_exit++;
2011                                         break;
2012                                 }
2013                                 fio_options_set_ioengine_opts(l_opts, td);
2014                         }
2015                         break;
2016                 }
2017                 case FIO_GETOPT_IOENGINE: {
2018                         const char *opt = l_opts[lidx].name;
2019                         char *val = optarg;
2020
2021                         if (!td)
2022                                 break;
2023
2024                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
2025                         break;
2026                 }
2027                 case 'w':
2028                         warnings_fatal = 1;
2029                         break;
2030                 case 'j':
2031                         max_jobs = atoi(optarg);
2032                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2033                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
2034                                 do_exit++;
2035                                 exit_val = 1;
2036                         }
2037                         break;
2038                 case 'S':
2039                         did_arg = 1;
2040 #ifndef CONFIG_NO_SHM
2041                         if (nr_clients) {
2042                                 log_err("fio: can't be both client and server\n");
2043                                 do_exit++;
2044                                 exit_val = 1;
2045                                 break;
2046                         }
2047                         if (optarg)
2048                                 fio_server_set_arg(optarg);
2049                         is_backend = 1;
2050                         backend = 1;
2051 #else
2052                         log_err("fio: client/server requires SHM support\n");
2053                         do_exit++;
2054                         exit_val = 1;
2055 #endif
2056                         break;
2057                 case 'D':
2058                         if (pid_file)
2059                                 free(pid_file);
2060                         pid_file = strdup(optarg);
2061                         break;
2062                 case 'I':
2063                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
2064                                 /* exit on error and calibration only */
2065                                 did_arg = 1;
2066                                 do_exit++;
2067                                 if (ret == -1)
2068                                         exit_val = 1;
2069                         }
2070                         break;
2071                 case 'C':
2072                         did_arg = 1;
2073                         if (is_backend) {
2074                                 log_err("fio: can't be both client and server\n");
2075                                 do_exit++;
2076                                 exit_val = 1;
2077                                 break;
2078                         }
2079                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2080                                 log_err("fio: failed adding client %s\n", optarg);
2081                                 do_exit++;
2082                                 exit_val = 1;
2083                                 break;
2084                         }
2085                         /*
2086                          * If the next argument exists and isn't an option,
2087                          * assume it's a job file for this client only.
2088                          */
2089                         while (optind < argc) {
2090                                 if (!strncmp(argv[optind], "--", 2) ||
2091                                     !strncmp(argv[optind], "-", 1))
2092                                         break;
2093
2094                                 fio_client_add_ini_file(cur_client, argv[optind]);
2095                                 optind++;
2096                         }
2097                         break;
2098                 case 'T':
2099                         did_arg = 1;
2100                         do_exit++;
2101                         exit_val = fio_monotonic_clocktest();
2102                         break;
2103                 case 'G':
2104                         did_arg = 1;
2105                         do_exit++;
2106                         exit_val = fio_crctest(optarg);
2107                         break;
2108                 case 'L': {
2109                         long long val;
2110
2111                         if (check_str_time(optarg, &val, 0)) {
2112                                 log_err("fio: failed parsing time %s\n", optarg);
2113                                 do_exit++;
2114                                 exit_val = 1;
2115                                 break;
2116                         }
2117                         status_interval = val * 1000;
2118                         break;
2119                         }
2120                 case '?':
2121                         log_err("%s: unrecognized option '%s'\n", argv[0],
2122                                                         argv[optind - 1]);
2123                 default:
2124                         do_exit++;
2125                         exit_val = 1;
2126                         break;
2127                 }
2128                 if (do_exit)
2129                         break;
2130         }
2131
2132         if (do_exit && !(is_backend || nr_clients))
2133                 exit(exit_val);
2134
2135         if (nr_clients && fio_clients_connect())
2136                 exit(1);
2137
2138         if (is_backend && backend)
2139                 return fio_start_server(pid_file);
2140         else if (pid_file)
2141                 free(pid_file);
2142
2143         if (td) {
2144                 if (!ret) {
2145                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2146                         if (ret)
2147                                 did_arg = 1;
2148                 }
2149         }
2150
2151         while (!ret && optind < argc) {
2152                 ini_idx++;
2153                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2154                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2155                 optind++;
2156         }
2157
2158 out_free:
2159         if (pid_file)
2160                 free(pid_file);
2161
2162         return ini_idx;
2163 }
2164
2165 int fio_init_options(void)
2166 {
2167         f_out = stdout;
2168         f_err = stderr;
2169
2170         fio_options_fill_optstring();
2171         fio_options_dup_and_init(l_opts);
2172
2173         atexit(free_shm);
2174
2175         if (fill_def_thread())
2176                 return 1;
2177
2178         return 0;
2179 }
2180
2181 extern int fio_check_options(struct thread_options *);
2182
2183 int parse_options(int argc, char *argv[])
2184 {
2185         const int type = FIO_CLIENT_TYPE_CLI;
2186         int job_files, i;
2187
2188         if (fio_init_options())
2189                 return 1;
2190         if (fio_test_cconv(&def_thread.o))
2191                 log_err("fio: failed internal cconv test\n");
2192
2193         job_files = parse_cmd_line(argc, argv, type);
2194
2195         if (job_files > 0) {
2196                 for (i = 0; i < job_files; i++) {
2197                         if (i && fill_def_thread())
2198                                 return 1;
2199                         if (nr_clients) {
2200                                 if (fio_clients_send_ini(ini_file[i]))
2201                                         return 1;
2202                                 free(ini_file[i]);
2203                         } else if (!is_backend) {
2204                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2205                                         return 1;
2206                                 free(ini_file[i]);
2207                         }
2208                 }
2209         } else if (nr_clients) {
2210                 if (fill_def_thread())
2211                         return 1;
2212                 if (fio_clients_send_ini(NULL))
2213                         return 1;
2214         }
2215
2216         free(ini_file);
2217         fio_options_free(&def_thread);
2218         filesetup_mem_free();
2219
2220         if (!thread_number) {
2221                 if (parse_dryrun())
2222                         return 0;
2223                 if (exec_profile)
2224                         return 0;
2225                 if (is_backend || nr_clients)
2226                         return 0;
2227                 if (did_arg)
2228                         return 0;
2229
2230                 log_err("No jobs(s) defined\n\n");
2231
2232                 if (!did_arg) {
2233                         usage(argv[0]);
2234                         return 1;
2235                 }
2236
2237                 return 0;
2238         }
2239
2240         if (def_thread.o.gtod_offload) {
2241                 fio_gtod_init();
2242                 fio_gtod_offload = 1;
2243                 fio_gtod_cpu = def_thread.o.gtod_cpu;
2244         }
2245
2246         if (output_format == FIO_OUTPUT_NORMAL)
2247                 log_info("%s\n", fio_version_string);
2248
2249         return 0;
2250 }
2251
2252 void options_default_fill(struct thread_options *o)
2253 {
2254         memcpy(o, &def_thread.o, sizeof(*o));
2255 }