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/shm.h>
  13 #include <sys/types.h>
  14 #include <sys/stat.h>
  15
  16 #include "fio.h"
  17 #include "parse.h"
  18 #include "smalloc.h"
  19 #include "filehash.h"
  20 #include "verify.h"
  21 #include "profile.h"
  22 #include "server.h"
  23
  24 #include "lib/getopt.h"
  25
  26 #include "fio_version.h"
  27
  28 const char fio_version_string[] = FIO_VERSION;
  29
  30 #define FIO_RANDSEED            (0xb1899bedUL)
  31
  32 static char **ini_file;
  33 static int max_jobs = FIO_MAX_JOBS;
  34 static int dump_cmdline;
  35 static int def_timeout;
  36
  37 static struct thread_data def_thread;
  38 struct thread_data *threads = NULL;
  39
  40 int exitall_on_terminate = 0;
  41 int terse_output = 0;
  42 int eta_print;
  43 unsigned long long mlock_size = 0;
  44 FILE *f_out = NULL;
  45 FILE *f_err = NULL;
  46 char **job_sections = NULL;
  47 int nr_job_sections = 0;
  48 char *exec_profile = NULL;
  49 int warnings_fatal = 0;
  50 int terse_version = 3;
  51 int is_backend = 0;
  52 int nr_clients = 0;
  53 int log_syslog = 0;
  54
  55 int write_bw_log = 0;
  56 int read_only = 0;
  57
  58 static int write_lat_log;
  59
  60 static int prev_group_jobs;
  61
  62 unsigned long fio_debug = 0;
  63 unsigned int fio_debug_jobno = -1;
  64 unsigned int *fio_debug_jobp = NULL;
  65
  66 static char cmd_optstr[256];
  67 static int did_arg;
  68
  69 const fio_fp64_t def_percentile_list[FIO_IO_U_LIST_MAX_LEN] = {
  70         { .u.f  =  1.00 },
  71         { .u.f  =  5.00 },
  72         { .u.f  = 10.00 },
  73         { .u.f  = 20.00 },
  74         { .u.f  = 30.00 },
  75         { .u.f  = 40.00 },
  76         { .u.f  = 50.00 },
  77         { .u.f  = 60.00 },
  78         { .u.f  = 70.00 },
  79         { .u.f  = 80.00 },
  80         { .u.f  = 90.00 },
  81         { .u.f  = 95.00 },
  82         { .u.f  = 99.00 },
  83         { .u.f  = 99.50 },
  84         { .u.f  = 99.90 },
  85         { .u.f  = 99.95 },
  86         { .u.f  = 99.99 },
  87 };
  88
  89 #define FIO_CLIENT_FLAG         (1 << 16)
  90
  91 /*
  92  * Command line options. These will contain the above, plus a few
  93  * extra that only pertain to fio itself and not jobs.
  94  */
  95 static struct option l_opts[FIO_NR_OPTIONS] = {
  96         {
  97                 .name           = (char *) "output",
  98                 .has_arg        = required_argument,
  99                 .val            = 'o' | FIO_CLIENT_FLAG,
 100         },
 101         {
 102                 .name           = (char *) "timeout",
 103                 .has_arg        = required_argument,
 104                 .val            = 't' | FIO_CLIENT_FLAG,
 105         },
 106         {
 107                 .name           = (char *) "latency-log",
 108                 .has_arg        = required_argument,
 109                 .val            = 'l' | FIO_CLIENT_FLAG,
 110         },
 111         {
 112                 .name           = (char *) "bandwidth-log",
 113                 .has_arg        = required_argument,
 114                 .val            = 'b' | FIO_CLIENT_FLAG,
 115         },
 116         {
 117                 .name           = (char *) "minimal",
 118                 .has_arg        = optional_argument,
 119                 .val            = 'm' | FIO_CLIENT_FLAG,
 120         },
 121         {
 122                 .name           = (char *) "version",
 123                 .has_arg        = no_argument,
 124                 .val            = 'v' | FIO_CLIENT_FLAG,
 125         },
 126         {
 127                 .name           = (char *) "help",
 128                 .has_arg        = no_argument,
 129                 .val            = 'h' | FIO_CLIENT_FLAG,
 130         },
 131         {
 132                 .name           = (char *) "cmdhelp",
 133                 .has_arg        = optional_argument,
 134                 .val            = 'c' | FIO_CLIENT_FLAG,
 135         },
 136         {
 137                 .name              = (char *) "enghelp",
 138                 .has_arg        = optional_argument,
 139                 .val                = 'i' | FIO_CLIENT_FLAG,
 140         },
 141         {
 142                 .name           = (char *) "showcmd",
 143                 .has_arg        = no_argument,
 144                 .val            = 's' | FIO_CLIENT_FLAG,
 145         },
 146         {
 147                 .name           = (char *) "readonly",
 148                 .has_arg        = no_argument,
 149                 .val            = 'r' | FIO_CLIENT_FLAG,
 150         },
 151         {
 152                 .name           = (char *) "eta",
 153                 .has_arg        = required_argument,
 154                 .val            = 'e' | FIO_CLIENT_FLAG,
 155         },
 156         {
 157                 .name           = (char *) "debug",
 158                 .has_arg        = required_argument,
 159                 .val            = 'd' | FIO_CLIENT_FLAG,
 160         },
 161         {
 162                 .name           = (char *) "section",
 163                 .has_arg        = required_argument,
 164                 .val            = 'x' | FIO_CLIENT_FLAG,
 165         },
 166         {
 167                 .name           = (char *) "alloc-size",
 168                 .has_arg        = required_argument,
 169                 .val            = 'a' | FIO_CLIENT_FLAG,
 170         },
 171         {
 172                 .name           = (char *) "profile",
 173                 .has_arg        = required_argument,
 174                 .val            = 'p' | FIO_CLIENT_FLAG,
 175         },
 176         {
 177                 .name           = (char *) "warnings-fatal",
 178                 .has_arg        = no_argument,
 179                 .val            = 'w' | FIO_CLIENT_FLAG,
 180         },
 181         {
 182                 .name           = (char *) "max-jobs",
 183                 .has_arg        = required_argument,
 184                 .val            = 'j' | FIO_CLIENT_FLAG,
 185         },
 186         {
 187                 .name           = (char *) "terse-version",
 188                 .has_arg        = required_argument,
 189                 .val            = 'V' | FIO_CLIENT_FLAG,
 190         },
 191         {
 192                 .name           = (char *) "server",
 193                 .has_arg        = optional_argument,
 194                 .val            = 'S',
 195         },
 196         {       .name           = (char *) "daemonize",
 197                 .has_arg        = required_argument,
 198                 .val            = 'D',
 199         },
 200         {
 201                 .name           = (char *) "client",
 202                 .has_arg        = required_argument,
 203                 .val            = 'C',
 204         },
 205         {
 206                 .name           = NULL,
 207         },
 208 };
 209
 210 static void free_shm(void)
 211 {
 212         struct shmid_ds sbuf;
 213
 214         if (threads) {
 215                 void *tp = threads;
 216
 217                 threads = NULL;
 218                 file_hash_exit();
 219                 flow_exit();
 220                 fio_debug_jobp = NULL;
 221                 shmdt(tp);
 222                 shmctl(shm_id, IPC_RMID, &sbuf);
 223         }
 224
 225         scleanup();
 226 }
 227
 228 /*
 229  * The thread area is shared between the main process and the job
 230  * threads/processes. So setup a shared memory segment that will hold
 231  * all the job info. We use the end of the region for keeping track of
 232  * open files across jobs, for file sharing.
 233  */
 234 static int setup_thread_area(void)
 235 {
 236         void *hash;
 237
 238         if (threads)
 239                 return 0;
 240
 241         /*
 242          * 1024 is too much on some machines, scale max_jobs if
 243          * we get a failure that looks like too large a shm segment
 244          */
 245         do {
 246                 size_t size = max_jobs * sizeof(struct thread_data);
 247
 248                 size += file_hash_size;
 249                 size += sizeof(unsigned int);
 250
 251                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 252                 if (shm_id != -1)
 253                         break;
 254                 if (errno != EINVAL && errno != ENOMEM) {
 255                         perror("shmget");
 256                         break;
 257                 }
 258
 259                 max_jobs >>= 1;
 260         } while (max_jobs);
 261
 262         if (shm_id == -1)
 263                 return 1;
 264
 265         threads = shmat(shm_id, NULL, 0);
 266         if (threads == (void *) -1) {
 267                 perror("shmat");
 268                 return 1;
 269         }
 270
 271         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 272         hash = (void *) threads + max_jobs * sizeof(struct thread_data);
 273         fio_debug_jobp = (void *) hash + file_hash_size;
 274         *fio_debug_jobp = -1;
 275         file_hash_init(hash);
 276
 277         flow_init();
 278
 279         return 0;
 280 }
 281
 282 /*
 283  * Return a free job structure.
 284  */
 285 static struct thread_data *get_new_job(int global, struct thread_data *parent,
 286                                        int preserve_eo)
 287 {
 288         struct thread_data *td;
 289
 290         if (global)
 291                 return &def_thread;
 292         if (setup_thread_area()) {
 293                 log_err("error: failed to setup shm segment\n");
 294                 return NULL;
 295         }
 296         if (thread_number >= max_jobs) {
 297                 log_err("error: maximum number of jobs (%d) reached.\n",
 298                                 max_jobs);
 299                 return NULL;
 300         }
 301
 302         td = &threads[thread_number++];
 303         *td = *parent;
 304
 305         td->io_ops = NULL;
 306         if (!preserve_eo)
 307                 td->eo = NULL;
 308
 309         td->o.uid = td->o.gid = -1U;
 310
 311         dup_files(td, parent);
 312         fio_options_mem_dupe(td);
 313
 314         profile_add_hooks(td);
 315
 316         td->thread_number = thread_number;
 317         return td;
 318 }
 319
 320 static void put_job(struct thread_data *td)
 321 {
 322         if (td == &def_thread)
 323                 return;
 324
 325         profile_td_exit(td);
 326         flow_exit_job(td);
 327
 328         if (td->error)
 329                 log_info("fio: %s\n", td->verror);
 330
 331         fio_options_free(td);
 332         if (td->io_ops)
 333                 free_ioengine(td);
 334
 335         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 336         thread_number--;
 337 }
 338
 339 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 340 {
 341         unsigned int bs = td->o.min_bs[ddir];
 342
 343         assert(ddir_rw(ddir));
 344
 345         if (td->o.rate[ddir])
 346                 td->rate_bps[ddir] = td->o.rate[ddir];
 347         else
 348                 td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs;
 349
 350         if (!td->rate_bps[ddir]) {
 351                 log_err("rate lower than supported\n");
 352                 return -1;
 353         }
 354
 355         td->rate_pending_usleep[ddir] = 0;
 356         return 0;
 357 }
 358
 359 static int setup_rate(struct thread_data *td)
 360 {
 361         int ret = 0;
 362
 363         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
 364                 ret = __setup_rate(td, DDIR_READ);
 365         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
 366                 ret |= __setup_rate(td, DDIR_WRITE);
 367
 368         return ret;
 369 }
 370
 371 static int fixed_block_size(struct thread_options *o)
 372 {
 373         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 374                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 375                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE];
 376 }
 377
 378 /*
 379  * Lazy way of fixing up options that depend on each other. We could also
 380  * define option callback handlers, but this is easier.
 381  */
 382 static int fixup_options(struct thread_data *td)
 383 {
 384         struct thread_options *o = &td->o;
 385         int ret = 0;
 386
 387 #ifndef FIO_HAVE_PSHARED_MUTEX
 388         if (!o->use_thread) {
 389                 log_info("fio: this platform does not support process shared"
 390                          " mutexes, forcing use of threads. Use the 'thread'"
 391                          " option to get rid of this warning.\n");
 392                 o->use_thread = 1;
 393                 ret = warnings_fatal;
 394         }
 395 #endif
 396
 397         if (o->write_iolog_file && o->read_iolog_file) {
 398                 log_err("fio: read iolog overrides write_iolog\n");
 399                 free(o->write_iolog_file);
 400                 o->write_iolog_file = NULL;
 401                 ret = warnings_fatal;
 402         }
 403
 404         /*
 405          * only really works with 1 file
 406          */
 407         if (o->zone_size && o->open_files == 1)
 408                 o->zone_size = 0;
 409
 410         /*
 411          * If zone_range isn't specified, backward compatibility dictates it
 412          * should be made equal to zone_size.
 413          */
 414         if (o->zone_size && !o->zone_range)
 415                 o->zone_range = o->zone_size;
 416
 417         /*
 418          * Reads can do overwrites, we always need to pre-create the file
 419          */
 420         if (td_read(td) || td_rw(td))
 421                 o->overwrite = 1;
 422
 423         if (!o->min_bs[DDIR_READ])
 424                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
 425         if (!o->max_bs[DDIR_READ])
 426                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 427         if (!o->min_bs[DDIR_WRITE])
 428                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 429         if (!o->max_bs[DDIR_WRITE])
 430                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 431
 432         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 433
 434         /*
 435          * For random IO, allow blockalign offset other than min_bs.
 436          */
 437         if (!o->ba[DDIR_READ] || !td_random(td))
 438                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
 439         if (!o->ba[DDIR_WRITE] || !td_random(td))
 440                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
 441
 442         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 443             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE]) &&
 444             !o->norandommap) {
 445                 log_err("fio: Any use of blockalign= turns off randommap\n");
 446                 o->norandommap = 1;
 447                 ret = warnings_fatal;
 448         }
 449
 450         if (!o->file_size_high)
 451                 o->file_size_high = o->file_size_low;
 452
 453         if (o->norandommap && o->verify != VERIFY_NONE
 454             && !fixed_block_size(o))  {
 455                 log_err("fio: norandommap given for variable block sizes, "
 456                         "verify disabled\n");
 457                 o->verify = VERIFY_NONE;
 458                 ret = warnings_fatal;
 459         }
 460         if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
 461                 log_err("fio: bs_unaligned may not work with raw io\n");
 462
 463         /*
 464          * thinktime_spin must be less than thinktime
 465          */
 466         if (o->thinktime_spin > o->thinktime)
 467                 o->thinktime_spin = o->thinktime;
 468
 469         /*
 470          * The low water mark cannot be bigger than the iodepth
 471          */
 472         if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
 473                 /*
 474                  * syslet work around - if the workload is sequential,
 475                  * we want to let the queue drain all the way down to
 476                  * avoid seeking between async threads
 477                  */
 478                 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
 479                         o->iodepth_low = 1;
 480                 else
 481                         o->iodepth_low = o->iodepth;
 482         }
 483
 484         /*
 485          * If batch number isn't set, default to the same as iodepth
 486          */
 487         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 488                 o->iodepth_batch = o->iodepth;
 489
 490         if (o->nr_files > td->files_index)
 491                 o->nr_files = td->files_index;
 492
 493         if (o->open_files > o->nr_files || !o->open_files)
 494                 o->open_files = o->nr_files;
 495
 496         if (((o->rate[0] + o->rate[1]) && (o->rate_iops[0] + o->rate_iops[1]))||
 497             ((o->ratemin[0] + o->ratemin[1]) && (o->rate_iops_min[0] +
 498                 o->rate_iops_min[1]))) {
 499                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 500                 ret = 1;
 501         }
 502         if ((o->rate[0] < o->ratemin[0]) || (o->rate[1] < o->ratemin[1]) ||
 503             (o->rate_iops[0] < o->rate_iops_min[0]) ||
 504             (o->rate_iops[1] < o->rate_iops_min[1])) {
 505                 log_err("fio: minimum rate exceeds rate\n");
 506                 ret = 1;
 507         }
 508
 509         if (!o->timeout && o->time_based) {
 510                 log_err("fio: time_based requires a runtime/timeout setting\n");
 511                 o->time_based = 0;
 512                 ret = warnings_fatal;
 513         }
 514
 515         if (o->fill_device && !o->size)
 516                 o->size = -1ULL;
 517
 518         if (o->verify != VERIFY_NONE) {
 519                 if (td_write(td) && o->do_verify && o->numjobs > 1) {
 520                         log_info("Multiple writers may overwrite blocks that "
 521                                 "belong to other jobs. This can cause "
 522                                 "verification failures.\n");
 523                         ret = warnings_fatal;
 524                 }
 525
 526                 o->refill_buffers = 1;
 527                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 528                     !o->verify_interval)
 529                         o->verify_interval = o->min_bs[DDIR_WRITE];
 530         }
 531
 532         if (o->pre_read) {
 533                 o->invalidate_cache = 0;
 534                 if (td->io_ops->flags & FIO_PIPEIO) {
 535                         log_info("fio: cannot pre-read files with an IO engine"
 536                                  " that isn't seekable. Pre-read disabled.\n");
 537                         ret = warnings_fatal;
 538                 }
 539         }
 540
 541 #ifndef FIO_HAVE_FDATASYNC
 542         if (o->fdatasync_blocks) {
 543                 log_info("fio: this platform does not support fdatasync()"
 544                          " falling back to using fsync().  Use the 'fsync'"
 545                          " option instead of 'fdatasync' to get rid of"
 546                          " this warning\n");
 547                 o->fsync_blocks = o->fdatasync_blocks;
 548                 o->fdatasync_blocks = 0;
 549                 ret = warnings_fatal;
 550         }
 551 #endif
 552
 553 #ifdef WIN32
 554         /*
 555          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 556          * so fail if we're passed those flags
 557          */
 558         if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
 559                 log_err("fio: Windows does not support direct or non-buffered io with"
 560                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 561                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 562                 ret = 1;
 563         }
 564 #endif
 565
 566         /*
 567          * For fully compressible data, just zero them at init time.
 568          * It's faster than repeatedly filling it.
 569          */
 570         if (td->o.compress_percentage == 100) {
 571                 td->o.zero_buffers = 1;
 572                 td->o.compress_percentage = 0;
 573         }
 574
 575         return ret;
 576 }
 577
 578 /*
 579  * This function leaks the buffer
 580  */
 581 char *fio_uint_to_kmg(unsigned int val)
 582 {
 583         char *buf = malloc(32);
 584         char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
 585         char *p = post;
 586
 587         do {
 588                 if (val & 1023)
 589                         break;
 590
 591                 val >>= 10;
 592                 p++;
 593         } while (*p);
 594
 595         snprintf(buf, 31, "%u%c", val, *p);
 596         return buf;
 597 }
 598
 599 /* External engines are specified by "external:name.o") */
 600 static const char *get_engine_name(const char *str)
 601 {
 602         char *p = strstr(str, ":");
 603
 604         if (!p)
 605                 return str;
 606
 607         p++;
 608         strip_blank_front(&p);
 609         strip_blank_end(p);
 610         return p;
 611 }
 612
 613 static int exists_and_not_file(const char *filename)
 614 {
 615         struct stat sb;
 616
 617         if (lstat(filename, &sb) == -1)
 618                 return 0;
 619
 620         /* \\.\ is the device namespace in Windows, where every file
 621          * is a device node */
 622         if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
 623                 return 0;
 624
 625         return 1;
 626 }
 627
 628 static void td_fill_rand_seeds_os(struct thread_data *td)
 629 {
 630         os_random_seed(td->rand_seeds[0], &td->bsrange_state);
 631         os_random_seed(td->rand_seeds[1], &td->verify_state);
 632         os_random_seed(td->rand_seeds[2], &td->rwmix_state);
 633
 634         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 635                 os_random_seed(td->rand_seeds[3], &td->next_file_state);
 636
 637         os_random_seed(td->rand_seeds[5], &td->file_size_state);
 638         os_random_seed(td->rand_seeds[6], &td->trim_state);
 639
 640         if (!td_random(td))
 641                 return;
 642
 643         if (td->o.rand_repeatable)
 644                 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
 645
 646         os_random_seed(td->rand_seeds[4], &td->random_state);
 647 }
 648
 649 static void td_fill_rand_seeds_internal(struct thread_data *td)
 650 {
 651         init_rand_seed(&td->__bsrange_state, td->rand_seeds[0]);
 652         init_rand_seed(&td->__verify_state, td->rand_seeds[1]);
 653         init_rand_seed(&td->__rwmix_state, td->rand_seeds[2]);
 654
 655         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 656                 init_rand_seed(&td->__next_file_state, td->rand_seeds[3]);
 657
 658         init_rand_seed(&td->__file_size_state, td->rand_seeds[5]);
 659         init_rand_seed(&td->__trim_state, td->rand_seeds[6]);
 660
 661         if (!td_random(td))
 662                 return;
 663
 664         if (td->o.rand_repeatable)
 665                 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
 666
 667         init_rand_seed(&td->__random_state, td->rand_seeds[4]);
 668 }
 669
 670 void td_fill_rand_seeds(struct thread_data *td)
 671 {
 672         if (td->o.use_os_rand)
 673                 td_fill_rand_seeds_os(td);
 674         else
 675                 td_fill_rand_seeds_internal(td);
 676
 677         init_rand_seed(&td->buf_state, td->rand_seeds[7]);
 678 }
 679
 680
 681 /*
 682  * Initializes the ioengine configured for a job, if it has not been done so
 683  * already.
 684  */
 685 int ioengine_load(struct thread_data *td)
 686 {
 687         const char *engine;
 688
 689         /*
 690          * Engine has already been loaded.
 691          */
 692         if (td->io_ops)
 693                 return 0;
 694
 695         engine = get_engine_name(td->o.ioengine);
 696         td->io_ops = load_ioengine(td, engine);
 697         if (!td->io_ops) {
 698                 log_err("fio: failed to load engine %s\n", engine);
 699                 return 1;
 700         }
 701
 702         if (td->io_ops->option_struct_size && td->io_ops->options) {
 703                 /*
 704                  * In cases where td->eo is set, clone it for a child thread.
 705                  * This requires that the parent thread has the same ioengine,
 706                  * but that requirement must be enforced by the code which
 707                  * cloned the thread.
 708                  */
 709                 void *origeo = td->eo;
 710                 /*
 711                  * Otherwise use the default thread options.
 712                  */
 713                 if (!origeo && td != &def_thread && def_thread.eo &&
 714                     def_thread.io_ops->options == td->io_ops->options)
 715                         origeo = def_thread.eo;
 716
 717                 options_init(td->io_ops->options);
 718                 td->eo = malloc(td->io_ops->option_struct_size);
 719                 /*
 720                  * Use the default thread as an option template if this uses the
 721                  * same options structure and there are non-default options
 722                  * used.
 723                  */
 724                 if (origeo) {
 725                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
 726                         options_mem_dupe(td->eo, td->io_ops->options);
 727                 } else {
 728                         memset(td->eo, 0, td->io_ops->option_struct_size);
 729                         fill_default_options(td->eo, td->io_ops->options);
 730                 }
 731                 *(struct thread_data **)td->eo = td;
 732         }
 733
 734         return 0;
 735 }
 736
 737 /*
 738  * Adds a job to the list of things todo. Sanitizes the various options
 739  * to make sure we don't have conflicts, and initializes various
 740  * members of td.
 741  */
 742 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
 743                    int recursed, int client_type)
 744 {
 745         unsigned int i;
 746         char fname[PATH_MAX];
 747         int numjobs, file_alloced;
 748
 749         /*
 750          * the def_thread is just for options, it's not a real job
 751          */
 752         if (td == &def_thread)
 753                 return 0;
 754
 755         /*
 756          * if we are just dumping the output command line, don't add the job
 757          */
 758         if (dump_cmdline) {
 759                 put_job(td);
 760                 return 0;
 761         }
 762
 763         td->client_type = client_type;
 764
 765         if (profile_td_init(td))
 766                 goto err;
 767
 768         if (ioengine_load(td))
 769                 goto err;
 770
 771         if (td->o.odirect)
 772                 td->io_ops->flags |= FIO_RAWIO;
 773
 774         file_alloced = 0;
 775         if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
 776                 file_alloced = 1;
 777
 778                 if (td->o.nr_files == 1 && exists_and_not_file(jobname))
 779                         add_file(td, jobname);
 780                 else {
 781                         for (i = 0; i < td->o.nr_files; i++) {
 782                                 sprintf(fname, "%s.%d.%d", jobname,
 783                                                         td->thread_number, i);
 784                                 add_file(td, fname);
 785                         }
 786                 }
 787         }
 788
 789         if (fixup_options(td))
 790                 goto err;
 791
 792         flow_init_job(td);
 793
 794         /*
 795          * IO engines only need this for option callbacks, and the address may
 796          * change in subprocesses.
 797          */
 798         if (td->eo)
 799                 *(struct thread_data **)td->eo = NULL;
 800
 801         if (td->io_ops->flags & FIO_DISKLESSIO) {
 802                 struct fio_file *f;
 803
 804                 for_each_file(td, f, i)
 805                         f->real_file_size = -1ULL;
 806         }
 807
 808         td->mutex = fio_mutex_init(0);
 809
 810         td->ts.clat_percentiles = td->o.clat_percentiles;
 811         if (td->o.overwrite_plist)
 812                 memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
 813         else
 814                 memcpy(td->ts.percentile_list, def_percentile_list, sizeof(def_percentile_list));
 815
 816         td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
 817         td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
 818         td->ts.lat_stat[0].min_val = td->ts.lat_stat[1].min_val = ULONG_MAX;
 819         td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
 820         td->ddir_seq_nr = td->o.ddir_seq_nr;
 821
 822         if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) {
 823                 prev_group_jobs = 0;
 824                 groupid++;
 825         }
 826
 827         td->groupid = groupid;
 828         prev_group_jobs++;
 829
 830         if (init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds))) {
 831                 td_verror(td, errno, "init_random_state");
 832                 goto err;
 833         }
 834
 835         if (setup_rate(td))
 836                 goto err;
 837
 838         if (td->o.write_lat_log) {
 839                 setup_log(&td->lat_log, td->o.log_avg_msec, IO_LOG_TYPE_LAT);
 840                 setup_log(&td->slat_log, td->o.log_avg_msec, IO_LOG_TYPE_SLAT);
 841                 setup_log(&td->clat_log, td->o.log_avg_msec, IO_LOG_TYPE_CLAT);
 842         }
 843         if (td->o.write_bw_log)
 844                 setup_log(&td->bw_log, td->o.log_avg_msec, IO_LOG_TYPE_BW);
 845         if (td->o.write_iops_log)
 846                 setup_log(&td->iops_log, td->o.log_avg_msec, IO_LOG_TYPE_IOPS);
 847
 848         if (!td->o.name)
 849                 td->o.name = strdup(jobname);
 850
 851         if (!terse_output) {
 852                 if (!job_add_num) {
 853                         if (is_backend && !recursed)
 854                                 fio_server_send_add_job(td);
 855
 856                         if (!(td->io_ops->flags & FIO_NOIO)) {
 857                                 char *c1, *c2, *c3, *c4;
 858
 859                                 c1 = fio_uint_to_kmg(td->o.min_bs[DDIR_READ]);
 860                                 c2 = fio_uint_to_kmg(td->o.max_bs[DDIR_READ]);
 861                                 c3 = fio_uint_to_kmg(td->o.min_bs[DDIR_WRITE]);
 862                                 c4 = fio_uint_to_kmg(td->o.max_bs[DDIR_WRITE]);
 863
 864                                 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s,"
 865                                          " ioengine=%s, iodepth=%u\n",
 866                                                 td->o.name, td->groupid,
 867                                                 ddir_str(td->o.td_ddir),
 868                                                 c1, c2, c3, c4,
 869                                                 td->io_ops->name,
 870                                                 td->o.iodepth);
 871
 872                                 free(c1);
 873                                 free(c2);
 874                                 free(c3);
 875                                 free(c4);
 876                         }
 877                 } else if (job_add_num == 1)
 878                         log_info("...\n");
 879         }
 880
 881         /*
 882          * recurse add identical jobs, clear numjobs and stonewall options
 883          * as they don't apply to sub-jobs
 884          */
 885         numjobs = td->o.numjobs;
 886         while (--numjobs) {
 887                 struct thread_data *td_new = get_new_job(0, td, 1);
 888
 889                 if (!td_new)
 890                         goto err;
 891
 892                 td_new->o.numjobs = 1;
 893                 td_new->o.stonewall = 0;
 894                 td_new->o.new_group = 0;
 895
 896                 if (file_alloced) {
 897                         td_new->o.filename = NULL;
 898                         td_new->files_index = 0;
 899                         td_new->files_size = 0;
 900                         td_new->files = NULL;
 901                 }
 902
 903                 job_add_num = numjobs - 1;
 904
 905                 if (add_job(td_new, jobname, job_add_num, 1, client_type))
 906                         goto err;
 907         }
 908
 909         return 0;
 910 err:
 911         put_job(td);
 912         return -1;
 913 }
 914
 915 /*
 916  * Parse as if 'o' was a command line
 917  */
 918 void add_job_opts(const char **o, int client_type)
 919 {
 920         struct thread_data *td, *td_parent;
 921         int i, in_global = 1;
 922         char jobname[32];
 923
 924         i = 0;
 925         td_parent = td = NULL;
 926         while (o[i]) {
 927                 if (!strncmp(o[i], "name", 4)) {
 928                         in_global = 0;
 929                         if (td)
 930                                 add_job(td, jobname, 0, 0, client_type);
 931                         td = NULL;
 932                         sprintf(jobname, "%s", o[i] + 5);
 933                 }
 934                 if (in_global && !td_parent)
 935                         td_parent = get_new_job(1, &def_thread, 0);
 936                 else if (!in_global && !td) {
 937                         if (!td_parent)
 938                                 td_parent = &def_thread;
 939                         td = get_new_job(0, td_parent, 0);
 940                 }
 941                 if (in_global)
 942                         fio_options_parse(td_parent, (char **) &o[i], 1);
 943                 else
 944                         fio_options_parse(td, (char **) &o[i], 1);
 945                 i++;
 946         }
 947
 948         if (td)
 949                 add_job(td, jobname, 0, 0, client_type);
 950 }
 951
 952 static int skip_this_section(const char *name)
 953 {
 954         int i;
 955
 956         if (!nr_job_sections)
 957                 return 0;
 958         if (!strncmp(name, "global", 6))
 959                 return 0;
 960
 961         for (i = 0; i < nr_job_sections; i++)
 962                 if (!strcmp(job_sections[i], name))
 963                         return 0;
 964
 965         return 1;
 966 }
 967
 968 static int is_empty_or_comment(char *line)
 969 {
 970         unsigned int i;
 971
 972         for (i = 0; i < strlen(line); i++) {
 973                 if (line[i] == ';')
 974                         return 1;
 975                 if (line[i] == '#')
 976                         return 1;
 977                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
 978                         return 0;
 979         }
 980
 981         return 1;
 982 }
 983
 984 /*
 985  * This is our [ini] type file parser.
 986  */
 987 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
 988 {
 989         unsigned int global;
 990         struct thread_data *td;
 991         char *string, *name;
 992         FILE *f;
 993         char *p;
 994         int ret = 0, stonewall;
 995         int first_sect = 1;
 996         int skip_fgets = 0;
 997         int inside_skip = 0;
 998         char **opts;
 999         int i, alloc_opts, num_opts;
1000
1001         if (is_buf)
1002                 f = NULL;
1003         else {
1004                 if (!strcmp(file, "-"))
1005                         f = stdin;
1006                 else
1007                         f = fopen(file, "r");
1008
1009                 if (!f) {
1010                         perror("fopen job file");
1011                         return 1;
1012                 }
1013         }
1014
1015         string = malloc(4096);
1016
1017         /*
1018          * it's really 256 + small bit, 280 should suffice
1019          */
1020         name = malloc(280);
1021         memset(name, 0, 280);
1022
1023         alloc_opts = 8;
1024         opts = malloc(sizeof(char *) * alloc_opts);
1025         num_opts = 0;
1026
1027         stonewall = stonewall_flag;
1028         do {
1029                 /*
1030                  * if skip_fgets is set, we already have loaded a line we
1031                  * haven't handled.
1032                  */
1033                 if (!skip_fgets) {
1034                         if (is_buf)
1035                                 p = strsep(&file, "\n");
1036                         else
1037                                 p = fgets(string, 4096, f);
1038                         if (!p)
1039                                 break;
1040                 }
1041
1042                 skip_fgets = 0;
1043                 strip_blank_front(&p);
1044                 strip_blank_end(p);
1045
1046                 if (is_empty_or_comment(p))
1047                         continue;
1048                 if (sscanf(p, "[%255[^\n]]", name) != 1) {
1049                         if (inside_skip)
1050                                 continue;
1051                         log_err("fio: option <%s> outside of [] job section\n",
1052                                                                         p);
1053                         break;
1054                 }
1055
1056                 name[strlen(name) - 1] = '\0';
1057
1058                 if (skip_this_section(name)) {
1059                         inside_skip = 1;
1060                         continue;
1061                 } else
1062                         inside_skip = 0;
1063
1064                 global = !strncmp(name, "global", 6);
1065
1066                 if (dump_cmdline) {
1067                         if (first_sect)
1068                                 log_info("fio ");
1069                         if (!global)
1070                                 log_info("--name=%s ", name);
1071                         first_sect = 0;
1072                 }
1073
1074                 td = get_new_job(global, &def_thread, 0);
1075                 if (!td) {
1076                         ret = 1;
1077                         break;
1078                 }
1079
1080                 /*
1081                  * Seperate multiple job files by a stonewall
1082                  */
1083                 if (!global && stonewall) {
1084                         td->o.stonewall = stonewall;
1085                         stonewall = 0;
1086                 }
1087
1088                 num_opts = 0;
1089                 memset(opts, 0, alloc_opts * sizeof(char *));
1090
1091                 while (1) {
1092                         if (is_buf)
1093                                 p = strsep(&file, "\n");
1094                         else
1095                                 p = fgets(string, 4096, f);
1096                         if (!p)
1097                                 break;
1098
1099                         if (is_empty_or_comment(p))
1100                                 continue;
1101
1102                         strip_blank_front(&p);
1103
1104                         /*
1105                          * new section, break out and make sure we don't
1106                          * fgets() a new line at the top.
1107                          */
1108                         if (p[0] == '[') {
1109                                 skip_fgets = 1;
1110                                 break;
1111                         }
1112
1113                         strip_blank_end(p);
1114
1115                         if (num_opts == alloc_opts) {
1116                                 alloc_opts <<= 1;
1117                                 opts = realloc(opts,
1118                                                 alloc_opts * sizeof(char *));
1119                         }
1120
1121                         opts[num_opts] = strdup(p);
1122                         num_opts++;
1123                 }
1124
1125                 ret = fio_options_parse(td, opts, num_opts);
1126                 if (!ret) {
1127                         if (dump_cmdline)
1128                                 for (i = 0; i < num_opts; i++)
1129                                         log_info("--%s ", opts[i]);
1130
1131                         ret = add_job(td, name, 0, 0, type);
1132                 } else {
1133                         log_err("fio: job %s dropped\n", name);
1134                         put_job(td);
1135                 }
1136
1137                 for (i = 0; i < num_opts; i++)
1138                         free(opts[i]);
1139                 num_opts = 0;
1140         } while (!ret);
1141
1142         if (dump_cmdline)
1143                 log_info("\n");
1144
1145         i = 0;
1146         while (i < nr_job_sections) {
1147                 free(job_sections[i]);
1148                 i++;
1149         }
1150
1151         for (i = 0; i < num_opts; i++)
1152                 free(opts[i]);
1153
1154         free(string);
1155         free(name);
1156         free(opts);
1157         if (!is_buf && f != stdin)
1158                 fclose(f);
1159         return ret;
1160 }
1161
1162 static int fill_def_thread(void)
1163 {
1164         memset(&def_thread, 0, sizeof(def_thread));
1165
1166         fio_getaffinity(getpid(), &def_thread.o.cpumask);
1167         def_thread.o.timeout = def_timeout;
1168
1169         /*
1170          * fill default options
1171          */
1172         fio_fill_default_options(&def_thread);
1173         return 0;
1174 }
1175
1176 static void usage(const char *name)
1177 {
1178         printf("%s\n", fio_version_string);
1179         printf("%s [options] [job options] <job file(s)>\n", name);
1180         printf("  --debug=options\tEnable debug logging. May be one/more of:\n"
1181                 "\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
1182                 "\t\t\tdiskutil,job,mutex,profile,time,net\n");
1183         printf("  --output\t\tWrite output to file\n");
1184         printf("  --timeout\t\tRuntime in seconds\n");
1185         printf("  --latency-log\t\tGenerate per-job latency logs\n");
1186         printf("  --bandwidth-log\tGenerate per-job bandwidth logs\n");
1187         printf("  --minimal\t\tMinimal (terse) output\n");
1188         printf("  --version\t\tPrint version info and exit\n");
1189         printf("  --terse-version=x\tSet terse version output format to 'x'\n");
1190         printf("  --help\t\tPrint this page\n");
1191         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
1192                 " them\n");
1193         printf("  --enghelp=engine\tPrint ioengine help, or list"
1194                 " available ioengines\n");
1195         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
1196                 " cmd\n");
1197         printf("  --showcmd\t\tTurn a job file into command line options\n");
1198         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
1199         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
1200         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
1201                 " writes\n");
1202         printf("  --section=name\tOnly run specified section in job file\n");
1203         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
1204                 " (def 1024)\n");
1205         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
1206         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1207         printf("  --server=args\t\tStart a backend fio server\n");
1208         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
1209         printf("  --client=hostname\tTalk to remote backend fio server at hostname\n");
1210         printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1211         printf("\n                 Jens Axboe <jaxboe@fusionio.com>\n");
1212 }
1213
1214 #ifdef FIO_INC_DEBUG
1215 struct debug_level debug_levels[] = {
1216         { .name = "process",
1217           .help = "Process creation/exit logging",
1218           .shift = FD_PROCESS,
1219         },
1220         { .name = "file",
1221           .help = "File related action logging",
1222           .shift = FD_FILE,
1223         },
1224         { .name = "io",
1225           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
1226           .shift = FD_IO,
1227         },
1228         { .name = "mem",
1229           .help = "Memory allocation/freeing logging",
1230           .shift = FD_MEM,
1231         },
1232         { .name = "blktrace",
1233           .help = "blktrace action logging",
1234           .shift = FD_BLKTRACE,
1235         },
1236         { .name = "verify",
1237           .help = "IO verification action logging",
1238           .shift = FD_VERIFY,
1239         },
1240         { .name = "random",
1241           .help = "Random generation logging",
1242           .shift = FD_RANDOM,
1243         },
1244         { .name = "parse",
1245           .help = "Parser logging",
1246           .shift = FD_PARSE,
1247         },
1248         { .name = "diskutil",
1249           .help = "Disk utility logging actions",
1250           .shift = FD_DISKUTIL,
1251         },
1252         { .name = "job",
1253           .help = "Logging related to creating/destroying jobs",
1254           .shift = FD_JOB,
1255         },
1256         { .name = "mutex",
1257           .help = "Mutex logging",
1258           .shift = FD_MUTEX
1259         },
1260         { .name = "profile",
1261           .help = "Logging related to profiles",
1262           .shift = FD_PROFILE,
1263         },
1264         { .name = "time",
1265           .help = "Logging related to time keeping functions",
1266           .shift = FD_TIME,
1267         },
1268         { .name = "net",
1269           .help = "Network logging",
1270           .shift = FD_NET,
1271         },
1272         { .name = NULL, },
1273 };
1274
1275 static int set_debug(const char *string)
1276 {
1277         struct debug_level *dl;
1278         char *p = (char *) string;
1279         char *opt;
1280         int i;
1281
1282         if (!strcmp(string, "?") || !strcmp(string, "help")) {
1283                 log_info("fio: dumping debug options:");
1284                 for (i = 0; debug_levels[i].name; i++) {
1285                         dl = &debug_levels[i];
1286                         log_info("%s,", dl->name);
1287                 }
1288                 log_info("all\n");
1289                 return 1;
1290         }
1291
1292         while ((opt = strsep(&p, ",")) != NULL) {
1293                 int found = 0;
1294
1295                 if (!strncmp(opt, "all", 3)) {
1296                         log_info("fio: set all debug options\n");
1297                         fio_debug = ~0UL;
1298                         continue;
1299                 }
1300
1301                 for (i = 0; debug_levels[i].name; i++) {
1302                         dl = &debug_levels[i];
1303                         found = !strncmp(opt, dl->name, strlen(dl->name));
1304                         if (!found)
1305                                 continue;
1306
1307                         if (dl->shift == FD_JOB) {
1308                                 opt = strchr(opt, ':');
1309                                 if (!opt) {
1310                                         log_err("fio: missing job number\n");
1311                                         break;
1312                                 }
1313                                 opt++;
1314                                 fio_debug_jobno = atoi(opt);
1315                                 log_info("fio: set debug jobno %d\n",
1316                                                         fio_debug_jobno);
1317                         } else {
1318                                 log_info("fio: set debug option %s\n", opt);
1319                                 fio_debug |= (1UL << dl->shift);
1320                         }
1321                         break;
1322                 }
1323
1324                 if (!found)
1325                         log_err("fio: debug mask %s not found\n", opt);
1326         }
1327         return 0;
1328 }
1329 #else
1330 static int set_debug(const char *string)
1331 {
1332         log_err("fio: debug tracing not included in build\n");
1333         return 1;
1334 }
1335 #endif
1336
1337 static void fio_options_fill_optstring(void)
1338 {
1339         char *ostr = cmd_optstr;
1340         int i, c;
1341
1342         c = i = 0;
1343         while (l_opts[i].name) {
1344                 ostr[c++] = l_opts[i].val;
1345                 if (l_opts[i].has_arg == required_argument)
1346                         ostr[c++] = ':';
1347                 else if (l_opts[i].has_arg == optional_argument) {
1348                         ostr[c++] = ':';
1349                         ostr[c++] = ':';
1350                 }
1351                 i++;
1352         }
1353         ostr[c] = '\0';
1354 }
1355
1356 static int client_flag_set(char c)
1357 {
1358         int i;
1359
1360         i = 0;
1361         while (l_opts[i].name) {
1362                 int val = l_opts[i].val;
1363
1364                 if (c == (val & 0xff))
1365                         return (val & FIO_CLIENT_FLAG);
1366
1367                 i++;
1368         }
1369
1370         return 0;
1371 }
1372
1373 void parse_cmd_client(void *client, char *opt)
1374 {
1375         fio_client_add_cmd_option(client, opt);
1376 }
1377
1378 int parse_cmd_line(int argc, char *argv[], int client_type)
1379 {
1380         struct thread_data *td = NULL;
1381         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1382         char *ostr = cmd_optstr;
1383         void *pid_file = NULL;
1384         void *cur_client = NULL;
1385         int backend = 0;
1386
1387         /*
1388          * Reset optind handling, since we may call this multiple times
1389          * for the backend.
1390          */
1391         optind = 1;
1392
1393         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1394                 did_arg = 1;
1395
1396                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1397                         parse_cmd_client(cur_client, argv[optind - 1]);
1398                         c &= ~FIO_CLIENT_FLAG;
1399                 }
1400
1401                 switch (c) {
1402                 case 'a':
1403                         smalloc_pool_size = atoi(optarg);
1404                         break;
1405                 case 't':
1406                         def_timeout = atoi(optarg);
1407                         break;
1408                 case 'l':
1409                         write_lat_log = 1;
1410                         break;
1411                 case 'b':
1412                         write_bw_log = 1;
1413                         break;
1414                 case 'o':
1415                         f_out = fopen(optarg, "w+");
1416                         if (!f_out) {
1417                                 perror("fopen output");
1418                                 exit(1);
1419                         }
1420                         f_err = f_out;
1421                         break;
1422                 case 'm':
1423                         terse_output = 1;
1424                         break;
1425                 case 'h':
1426                         if (!cur_client) {
1427                                 usage(argv[0]);
1428                                 do_exit++;
1429                         }
1430                         break;
1431                 case 'c':
1432                         if (!cur_client) {
1433                                 fio_show_option_help(optarg);
1434                                 do_exit++;
1435                         }
1436                         break;
1437                 case 'i':
1438                         if (!cur_client) {
1439                                 fio_show_ioengine_help(optarg);
1440                                 do_exit++;
1441                         }
1442                         break;
1443                 case 's':
1444                         dump_cmdline = 1;
1445                         break;
1446                 case 'r':
1447                         read_only = 1;
1448                         break;
1449                 case 'v':
1450                         if (!cur_client) {
1451                                 log_info("%s\n", fio_version_string);
1452                                 do_exit++;
1453                         }
1454                         break;
1455                 case 'V':
1456                         terse_version = atoi(optarg);
1457                         if (!(terse_version == 2 || terse_version == 3)) {
1458                                 log_err("fio: bad terse version format\n");
1459                                 exit_val = 1;
1460                                 do_exit++;
1461                         }
1462                         break;
1463                 case 'e':
1464                         if (!strcmp("always", optarg))
1465                                 eta_print = FIO_ETA_ALWAYS;
1466                         else if (!strcmp("never", optarg))
1467                                 eta_print = FIO_ETA_NEVER;
1468                         break;
1469                 case 'd':
1470                         if (set_debug(optarg))
1471                                 do_exit++;
1472                         break;
1473                 case 'x': {
1474                         size_t new_size;
1475
1476                         if (!strcmp(optarg, "global")) {
1477                                 log_err("fio: can't use global as only "
1478                                         "section\n");
1479                                 do_exit++;
1480                                 exit_val = 1;
1481                                 break;
1482                         }
1483                         new_size = (nr_job_sections + 1) * sizeof(char *);
1484                         job_sections = realloc(job_sections, new_size);
1485                         job_sections[nr_job_sections] = strdup(optarg);
1486                         nr_job_sections++;
1487                         break;
1488                         }
1489                 case 'p':
1490                         exec_profile = strdup(optarg);
1491                         break;
1492                 case FIO_GETOPT_JOB: {
1493                         const char *opt = l_opts[lidx].name;
1494                         char *val = optarg;
1495
1496                         if (!strncmp(opt, "name", 4) && td) {
1497                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
1498                                 if (ret)
1499                                         return 0;
1500                                 td = NULL;
1501                         }
1502                         if (!td) {
1503                                 int is_section = !strncmp(opt, "name", 4);
1504                                 int global = 0;
1505
1506                                 if (!is_section || !strncmp(val, "global", 6))
1507                                         global = 1;
1508
1509                                 if (is_section && skip_this_section(val))
1510                                         continue;
1511
1512                                 td = get_new_job(global, &def_thread, 1);
1513                                 if (!td || ioengine_load(td))
1514                                         return 0;
1515                                 fio_options_set_ioengine_opts(l_opts, td);
1516                         }
1517
1518                         ret = fio_cmd_option_parse(td, opt, val);
1519
1520                         if (!ret && !strcmp(opt, "ioengine")) {
1521                                 free_ioengine(td);
1522                                 if (ioengine_load(td))
1523                                         return 0;
1524                                 fio_options_set_ioengine_opts(l_opts, td);
1525                         }
1526                         break;
1527                 }
1528                 case FIO_GETOPT_IOENGINE: {
1529                         const char *opt = l_opts[lidx].name;
1530                         char *val = optarg;
1531                         opt = l_opts[lidx].name;
1532                         val = optarg;
1533                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
1534                         break;
1535                 }
1536                 case 'w':
1537                         warnings_fatal = 1;
1538                         break;
1539                 case 'j':
1540                         max_jobs = atoi(optarg);
1541                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
1542                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
1543                                 do_exit++;
1544                                 exit_val = 1;
1545                         }
1546                         break;
1547                 case 'S':
1548                         if (nr_clients) {
1549                                 log_err("fio: can't be both client and server\n");
1550                                 do_exit++;
1551                                 exit_val = 1;
1552                                 break;
1553                         }
1554                         if (optarg)
1555                                 fio_server_set_arg(optarg);
1556                         is_backend = 1;
1557                         backend = 1;
1558                         break;
1559                 case 'D':
1560                         pid_file = strdup(optarg);
1561                         break;
1562                 case 'C':
1563                         if (is_backend) {
1564                                 log_err("fio: can't be both client and server\n");
1565                                 do_exit++;
1566                                 exit_val = 1;
1567                                 break;
1568                         }
1569                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
1570                                 log_err("fio: failed adding client %s\n", optarg);
1571                                 do_exit++;
1572                                 exit_val = 1;
1573                                 break;
1574                         }
1575                         break;
1576                 default:
1577                         do_exit++;
1578                         exit_val = 1;
1579                         break;
1580                 }
1581                 if (do_exit)
1582                         break;
1583         }
1584
1585         if (do_exit) {
1586                 if (exit_val && !(is_backend || nr_clients))
1587                         exit(exit_val);
1588         }
1589
1590         if (nr_clients && fio_clients_connect()) {
1591                 do_exit++;
1592                 exit_val = 1;
1593                 return -1;
1594         }
1595
1596         if (is_backend && backend)
1597                 return fio_start_server(pid_file);
1598
1599         if (td) {
1600                 if (!ret)
1601                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
1602         }
1603
1604         while (!ret && optind < argc) {
1605                 ini_idx++;
1606                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1607                 ini_file[ini_idx - 1] = strdup(argv[optind]);
1608                 optind++;
1609         }
1610
1611         return ini_idx;
1612 }
1613
1614 int fio_init_options(void)
1615 {
1616         f_out = stdout;
1617         f_err = stderr;
1618
1619         fio_options_fill_optstring();
1620         fio_options_dup_and_init(l_opts);
1621
1622         atexit(free_shm);
1623
1624         if (fill_def_thread())
1625                 return 1;
1626
1627         return 0;
1628 }
1629
1630 extern int fio_check_options(struct thread_options *);
1631
1632 int parse_options(int argc, char *argv[])
1633 {
1634         const int type = FIO_CLIENT_TYPE_CLI;
1635         int job_files, i;
1636
1637         if (fio_init_options())
1638                 return 1;
1639         if (fio_test_cconv(&def_thread.o))
1640                 log_err("fio: failed internal cconv test\n");
1641
1642         job_files = parse_cmd_line(argc, argv, type);
1643
1644         if (job_files > 0) {
1645                 for (i = 0; i < job_files; i++) {
1646                         if (fill_def_thread())
1647                                 return 1;
1648                         if (nr_clients) {
1649                                 if (fio_clients_send_ini(ini_file[i]))
1650                                         return 1;
1651                                 free(ini_file[i]);
1652                         } else if (!is_backend) {
1653                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
1654                                         return 1;
1655                                 free(ini_file[i]);
1656                         }
1657                 }
1658         }
1659
1660         free(ini_file);
1661         fio_options_free(&def_thread);
1662
1663         if (!thread_number) {
1664                 if (dump_cmdline)
1665                         return 0;
1666                 if (exec_profile)
1667                         return 0;
1668                 if (is_backend || nr_clients)
1669                         return 0;
1670                 if (did_arg)
1671                         return 0;
1672
1673                 log_err("No jobs(s) defined\n\n");
1674
1675                 if (!did_arg) {
1676                         usage(argv[0]);
1677                         return 1;
1678                 }
1679
1680                 return 0;
1681         }
1682
1683         if (def_thread.o.gtod_offload) {
1684                 fio_gtod_init();
1685                 fio_gtod_offload = 1;
1686                 fio_gtod_cpu = def_thread.o.gtod_cpu;
1687         }
1688
1689         if (!terse_output)
1690                 log_info("%s\n", fio_version_string);
1691
1692         return 0;
1693 }
1694
1695 void options_default_fill(struct thread_options *o)
1696 {
1697         memcpy(o, &def_thread.o, sizeof(*o));
1698 }