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                  * Verify interval must be smaller or equal to the
 641                  * write size.
 642                  */
 643                 if (o->verify_interval > o->min_bs[DDIR_WRITE])
 644                         o->verify_interval = o->min_bs[DDIR_WRITE];
 645                 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
 646                         o->verify_interval = o->min_bs[DDIR_READ];
 647         }
 648
 649         if (o->pre_read) {
 650                 o->invalidate_cache = 0;
 651                 if (td->io_ops->flags & FIO_PIPEIO) {
 652                         log_info("fio: cannot pre-read files with an IO engine"
 653                                  " that isn't seekable. Pre-read disabled.\n");
 654                         ret = warnings_fatal;
 655                 }
 656         }
 657
 658         if (!o->unit_base) {
 659                 if (td->io_ops->flags & FIO_BIT_BASED)
 660                         o->unit_base = 1;
 661                 else
 662                         o->unit_base = 8;
 663         }
 664
 665 #ifndef CONFIG_FDATASYNC
 666         if (o->fdatasync_blocks) {
 667                 log_info("fio: this platform does not support fdatasync()"
 668                          " falling back to using fsync().  Use the 'fsync'"
 669                          " option instead of 'fdatasync' to get rid of"
 670                          " this warning\n");
 671                 o->fsync_blocks = o->fdatasync_blocks;
 672                 o->fdatasync_blocks = 0;
 673                 ret = warnings_fatal;
 674         }
 675 #endif
 676
 677 #ifdef WIN32
 678         /*
 679          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 680          * so fail if we're passed those flags
 681          */
 682         if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
 683                 log_err("fio: Windows does not support direct or non-buffered io with"
 684                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 685                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 686                 ret = 1;
 687         }
 688 #endif
 689
 690         /*
 691          * For fully compressible data, just zero them at init time.
 692          * It's faster than repeatedly filling it.
 693          */
 694         if (td->o.compress_percentage == 100) {
 695                 td->o.zero_buffers = 1;
 696                 td->o.compress_percentage = 0;
 697         }
 698
 699         /*
 700          * Using a non-uniform random distribution excludes usage of
 701          * a random map
 702          */
 703         if (td->o.random_distribution != FIO_RAND_DIST_RANDOM)
 704                 td->o.norandommap = 1;
 705
 706         /*
 707          * If size is set but less than the min block size, complain
 708          */
 709         if (o->size && o->size < td_min_bs(td)) {
 710                 log_err("fio: size too small, must be larger than the IO size: %llu\n", (unsigned long long) o->size);
 711                 ret = 1;
 712         }
 713
 714         /*
 715          * O_ATOMIC implies O_DIRECT
 716          */
 717         if (td->o.oatomic)
 718                 td->o.odirect = 1;
 719
 720         /*
 721          * If randseed is set, that overrides randrepeat
 722          */
 723         if (td->o.rand_seed)
 724                 td->o.rand_repeatable = 0;
 725
 726         if ((td->io_ops->flags & FIO_NOEXTEND) && td->o.file_append) {
 727                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
 728                 ret = 1;
 729         }
 730
 731         return ret;
 732 }
 733
 734 /*
 735  * This function leaks the buffer
 736  */
 737 char *fio_uint_to_kmg(unsigned int val)
 738 {
 739         char *buf = malloc(32);
 740         char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
 741         char *p = post;
 742
 743         do {
 744                 if (val & 1023)
 745                         break;
 746
 747                 val >>= 10;
 748                 p++;
 749         } while (*p);
 750
 751         snprintf(buf, 32, "%u%c", val, *p);
 752         return buf;
 753 }
 754
 755 /* External engines are specified by "external:name.o") */
 756 static const char *get_engine_name(const char *str)
 757 {
 758         char *p = strstr(str, ":");
 759
 760         if (!p)
 761                 return str;
 762
 763         p++;
 764         strip_blank_front(&p);
 765         strip_blank_end(p);
 766         return p;
 767 }
 768
 769 static int exists_and_not_file(const char *filename)
 770 {
 771         struct stat sb;
 772
 773         if (lstat(filename, &sb) == -1)
 774                 return 0;
 775
 776         /* \\.\ is the device namespace in Windows, where every file
 777          * is a device node */
 778         if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
 779                 return 0;
 780
 781         return 1;
 782 }
 783
 784 static void td_fill_rand_seeds_os(struct thread_data *td)
 785 {
 786         os_random_seed(td->rand_seeds[FIO_RAND_BS_OFF], &td->bsrange_state);
 787         os_random_seed(td->rand_seeds[FIO_RAND_VER_OFF], &td->verify_state);
 788         os_random_seed(td->rand_seeds[FIO_RAND_MIX_OFF], &td->rwmix_state);
 789
 790         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 791                 os_random_seed(td->rand_seeds[FIO_RAND_FILE_OFF], &td->next_file_state);
 792
 793         os_random_seed(td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], &td->file_size_state);
 794         os_random_seed(td->rand_seeds[FIO_RAND_TRIM_OFF], &td->trim_state);
 795         os_random_seed(td->rand_seeds[FIO_RAND_START_DELAY], &td->delay_state);
 796
 797         if (!td_random(td))
 798                 return;
 799
 800         if (td->o.rand_repeatable)
 801                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
 802
 803         os_random_seed(td->rand_seeds[FIO_RAND_BLOCK_OFF], &td->random_state);
 804
 805         os_random_seed(td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], &td->seq_rand_state[DDIR_READ]);
 806         os_random_seed(td->rand_seeds[FIO_RAND_SEQ_RAND_WRITE_OFF], &td->seq_rand_state[DDIR_WRITE]);
 807         os_random_seed(td->rand_seeds[FIO_RAND_SEQ_RAND_TRIM_OFF], &td->seq_rand_state[DDIR_TRIM]);
 808 }
 809
 810 static void td_fill_rand_seeds_internal(struct thread_data *td)
 811 {
 812         init_rand_seed(&td->__bsrange_state, td->rand_seeds[FIO_RAND_BS_OFF]);
 813         init_rand_seed(&td->__verify_state, td->rand_seeds[FIO_RAND_VER_OFF]);
 814         init_rand_seed(&td->__rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF]);
 815
 816         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 817                 init_rand_seed(&td->__next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF]);
 818
 819         init_rand_seed(&td->__file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF]);
 820         init_rand_seed(&td->__trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF]);
 821         init_rand_seed(&td->__delay_state, td->rand_seeds[FIO_RAND_START_DELAY]);
 822
 823         if (!td_random(td))
 824                 return;
 825
 826         if (td->o.rand_repeatable)
 827                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
 828
 829         init_rand_seed(&td->__random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
 830         init_rand_seed(&td->__seq_rand_state[DDIR_READ], td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF]);
 831         init_rand_seed(&td->__seq_rand_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_SEQ_RAND_WRITE_OFF]);
 832         init_rand_seed(&td->__seq_rand_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_SEQ_RAND_TRIM_OFF]);
 833 }
 834
 835 void td_fill_rand_seeds(struct thread_data *td)
 836 {
 837         if (td->o.allrand_repeatable) {
 838                 for (int i = 0; i < FIO_RAND_NR_OFFS; i++)
 839                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
 840                                 + i;
 841         }
 842
 843         if (td->o.use_os_rand)
 844                 td_fill_rand_seeds_os(td);
 845         else
 846                 td_fill_rand_seeds_internal(td);
 847
 848         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF]);
 849 }
 850
 851 /*
 852  * Initializes the ioengine configured for a job, if it has not been done so
 853  * already.
 854  */
 855 int ioengine_load(struct thread_data *td)
 856 {
 857         const char *engine;
 858
 859         /*
 860          * Engine has already been loaded.
 861          */
 862         if (td->io_ops)
 863                 return 0;
 864         if (!td->o.ioengine) {
 865                 log_err("fio: internal fault, no IO engine specified\n");
 866                 return 1;
 867         }
 868
 869         engine = get_engine_name(td->o.ioengine);
 870         td->io_ops = load_ioengine(td, engine);
 871         if (!td->io_ops) {
 872                 log_err("fio: failed to load engine %s\n", engine);
 873                 return 1;
 874         }
 875
 876         if (td->io_ops->option_struct_size && td->io_ops->options) {
 877                 /*
 878                  * In cases where td->eo is set, clone it for a child thread.
 879                  * This requires that the parent thread has the same ioengine,
 880                  * but that requirement must be enforced by the code which
 881                  * cloned the thread.
 882                  */
 883                 void *origeo = td->eo;
 884                 /*
 885                  * Otherwise use the default thread options.
 886                  */
 887                 if (!origeo && td != &def_thread && def_thread.eo &&
 888                     def_thread.io_ops->options == td->io_ops->options)
 889                         origeo = def_thread.eo;
 890
 891                 options_init(td->io_ops->options);
 892                 td->eo = malloc(td->io_ops->option_struct_size);
 893                 /*
 894                  * Use the default thread as an option template if this uses the
 895                  * same options structure and there are non-default options
 896                  * used.
 897                  */
 898                 if (origeo) {
 899                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
 900                         options_mem_dupe(td->eo, td->io_ops->options);
 901                 } else {
 902                         memset(td->eo, 0, td->io_ops->option_struct_size);
 903                         fill_default_options(td->eo, td->io_ops->options);
 904                 }
 905                 *(struct thread_data **)td->eo = td;
 906         }
 907
 908         return 0;
 909 }
 910
 911 static void init_flags(struct thread_data *td)
 912 {
 913         struct thread_options *o = &td->o;
 914
 915         if (o->verify_backlog)
 916                 td->flags |= TD_F_VER_BACKLOG;
 917         if (o->trim_backlog)
 918                 td->flags |= TD_F_TRIM_BACKLOG;
 919         if (o->read_iolog_file)
 920                 td->flags |= TD_F_READ_IOLOG;
 921         if (o->refill_buffers)
 922                 td->flags |= TD_F_REFILL_BUFFERS;
 923         if (o->scramble_buffers)
 924                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
 925         if (o->verify != VERIFY_NONE)
 926                 td->flags |= TD_F_VER_NONE;
 927 }
 928
 929 static int setup_random_seeds(struct thread_data *td)
 930 {
 931         unsigned long seed;
 932         unsigned int i;
 933
 934         if (!td->o.rand_repeatable && !td->o.rand_seed)
 935                 return init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds));
 936
 937         if (!td->o.rand_seed)
 938                 seed = 0x89;
 939         else
 940                 seed = td->o.rand_seed;
 941
 942         for (i = 0; i < 4; i++)
 943                 seed *= 0x9e370001UL;
 944
 945         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
 946                 td->rand_seeds[i] = seed;
 947                 seed *= 0x9e370001UL;
 948         }
 949
 950         td_fill_rand_seeds(td);
 951         return 0;
 952 }
 953
 954 enum {
 955         FPRE_NONE = 0,
 956         FPRE_JOBNAME,
 957         FPRE_JOBNUM,
 958         FPRE_FILENUM
 959 };
 960
 961 static struct fpre_keyword {
 962         const char *keyword;
 963         size_t strlen;
 964         int key;
 965 } fpre_keywords[] = {
 966         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
 967         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
 968         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
 969         { .keyword = NULL, },
 970         };
 971
 972 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
 973                            const char *jobname, int jobnum, int filenum)
 974 {
 975         struct fpre_keyword *f;
 976         char copy[PATH_MAX];
 977         size_t dst_left = PATH_MAX - 1;
 978
 979         if (!o->filename_format || !strlen(o->filename_format)) {
 980                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
 981                 return NULL;
 982         }
 983
 984         for (f = &fpre_keywords[0]; f->keyword; f++)
 985                 f->strlen = strlen(f->keyword);
 986
 987         buf[buf_size - 1] = '\0';
 988         strncpy(buf, o->filename_format, buf_size - 1);
 989
 990         memset(copy, 0, sizeof(copy));
 991         for (f = &fpre_keywords[0]; f->keyword; f++) {
 992                 do {
 993                         size_t pre_len, post_start = 0;
 994                         char *str, *dst = copy;
 995
 996                         str = strcasestr(buf, f->keyword);
 997                         if (!str)
 998                                 break;
 999
1000                         pre_len = str - buf;
1001                         if (strlen(str) != f->strlen)
1002                                 post_start = pre_len + f->strlen;
1003
1004                         if (pre_len) {
1005                                 strncpy(dst, buf, pre_len);
1006                                 dst += pre_len;
1007                                 dst_left -= pre_len;
1008                         }
1009
1010                         switch (f->key) {
1011                         case FPRE_JOBNAME: {
1012                                 int ret;
1013
1014                                 ret = snprintf(dst, dst_left, "%s", jobname);
1015                                 if (ret < 0)
1016                                         break;
1017                                 dst += ret;
1018                                 dst_left -= ret;
1019                                 break;
1020                                 }
1021                         case FPRE_JOBNUM: {
1022                                 int ret;
1023
1024                                 ret = snprintf(dst, dst_left, "%d", jobnum);
1025                                 if (ret < 0)
1026                                         break;
1027                                 dst += ret;
1028                                 dst_left -= ret;
1029                                 break;
1030                                 }
1031                         case FPRE_FILENUM: {
1032                                 int ret;
1033
1034                                 ret = snprintf(dst, dst_left, "%d", filenum);
1035                                 if (ret < 0)
1036                                         break;
1037                                 dst += ret;
1038                                 dst_left -= ret;
1039                                 break;
1040                                 }
1041                         default:
1042                                 assert(0);
1043                                 break;
1044                         }
1045
1046                         if (post_start)
1047                                 strncpy(dst, buf + post_start, dst_left);
1048
1049                         strncpy(buf, copy, buf_size - 1);
1050                 } while (1);
1051         }
1052
1053         return buf;
1054 }
1055
1056 int parse_dryrun(void)
1057 {
1058         return dump_cmdline || parse_only;
1059 }
1060
1061 /*
1062  * Adds a job to the list of things todo. Sanitizes the various options
1063  * to make sure we don't have conflicts, and initializes various
1064  * members of td.
1065  */
1066 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1067                    int recursed, int client_type)
1068 {
1069         unsigned int i;
1070         char fname[PATH_MAX];
1071         int numjobs, file_alloced;
1072         struct thread_options *o = &td->o;
1073         char logname[PATH_MAX + 32];
1074
1075         /*
1076          * the def_thread is just for options, it's not a real job
1077          */
1078         if (td == &def_thread)
1079                 return 0;
1080
1081         init_flags(td);
1082
1083         /*
1084          * if we are just dumping the output command line, don't add the job
1085          */
1086         if (parse_dryrun()) {
1087                 put_job(td);
1088                 return 0;
1089         }
1090
1091         td->client_type = client_type;
1092
1093         if (profile_td_init(td))
1094                 goto err;
1095
1096         if (ioengine_load(td))
1097                 goto err;
1098
1099         if (o->odirect)
1100                 td->io_ops->flags |= FIO_RAWIO;
1101
1102         file_alloced = 0;
1103         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1104                 file_alloced = 1;
1105
1106                 if (o->nr_files == 1 && exists_and_not_file(jobname))
1107                         add_file(td, jobname, job_add_num, 0);
1108                 else {
1109                         for (i = 0; i < o->nr_files; i++)
1110                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1111                 }
1112         }
1113
1114         if (fixup_options(td))
1115                 goto err;
1116
1117         flow_init_job(td);
1118
1119         /*
1120          * IO engines only need this for option callbacks, and the address may
1121          * change in subprocesses.
1122          */
1123         if (td->eo)
1124                 *(struct thread_data **)td->eo = NULL;
1125
1126         if (td->io_ops->flags & FIO_DISKLESSIO) {
1127                 struct fio_file *f;
1128
1129                 for_each_file(td, f, i)
1130                         f->real_file_size = -1ULL;
1131         }
1132
1133         td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
1134
1135         td->ts.clat_percentiles = o->clat_percentiles;
1136         td->ts.percentile_precision = o->percentile_precision;
1137         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1138
1139         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1140                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1141                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1142                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1143                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1144         }
1145         td->ddir_seq_nr = o->ddir_seq_nr;
1146
1147         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1148                 prev_group_jobs = 0;
1149                 groupid++;
1150         }
1151
1152         td->groupid = groupid;
1153         prev_group_jobs++;
1154
1155         if (setup_random_seeds(td)) {
1156                 td_verror(td, errno, "init_random_state");
1157                 goto err;
1158         }
1159
1160         if (setup_rate(td))
1161                 goto err;
1162
1163         if (o->lat_log_file) {
1164                 struct log_params p = {
1165                         .td = td,
1166                         .avg_msec = o->log_avg_msec,
1167                         .log_type = IO_LOG_TYPE_LAT,
1168                         .log_offset = o->log_offset,
1169                         .log_gz = o->log_gz,
1170                         .log_gz_store = o->log_gz_store,
1171                 };
1172                 const char *suf;
1173
1174                 if (p.log_gz_store)
1175                         suf = "log.fz";
1176                 else
1177                         suf = "log";
1178
1179                 snprintf(logname, sizeof(logname), "%s_lat.%d.%s",
1180                                 o->lat_log_file, td->thread_number, suf);
1181                 setup_log(&td->lat_log, &p, logname);
1182                 snprintf(logname, sizeof(logname), "%s_slat.%d.%s",
1183                                 o->lat_log_file, td->thread_number, suf);
1184                 setup_log(&td->slat_log, &p, logname);
1185                 snprintf(logname, sizeof(logname), "%s_clat.%d.%s",
1186                                 o->lat_log_file, td->thread_number, suf);
1187                 setup_log(&td->clat_log, &p, logname);
1188         }
1189         if (o->bw_log_file) {
1190                 struct log_params p = {
1191                         .td = td,
1192                         .avg_msec = o->log_avg_msec,
1193                         .log_type = IO_LOG_TYPE_BW,
1194                         .log_offset = o->log_offset,
1195                         .log_gz = o->log_gz,
1196                         .log_gz_store = o->log_gz_store,
1197                 };
1198                 const char *suf;
1199
1200                 if (p.log_gz_store)
1201                         suf = "log.fz";
1202                 else
1203                         suf = "log";
1204
1205                 snprintf(logname, sizeof(logname), "%s_bw.%d.%s",
1206                                 o->bw_log_file, td->thread_number, suf);
1207                 setup_log(&td->bw_log, &p, logname);
1208         }
1209         if (o->iops_log_file) {
1210                 struct log_params p = {
1211                         .td = td,
1212                         .avg_msec = o->log_avg_msec,
1213                         .log_type = IO_LOG_TYPE_IOPS,
1214                         .log_offset = o->log_offset,
1215                         .log_gz = o->log_gz,
1216                         .log_gz_store = o->log_gz_store,
1217                 };
1218                 const char *suf;
1219
1220                 if (p.log_gz_store)
1221                         suf = "log.fz";
1222                 else
1223                         suf = "log";
1224
1225                 snprintf(logname, sizeof(logname), "%s_iops.%d.%s",
1226                                 o->iops_log_file, td->thread_number, suf);
1227                 setup_log(&td->iops_log, &p, logname);
1228         }
1229
1230         if (!o->name)
1231                 o->name = strdup(jobname);
1232
1233         if (output_format == FIO_OUTPUT_NORMAL) {
1234                 if (!job_add_num) {
1235                         if (is_backend && !recursed)
1236                                 fio_server_send_add_job(td);
1237
1238                         if (!(td->io_ops->flags & FIO_NOIO)) {
1239                                 char *c1, *c2, *c3, *c4;
1240                                 char *c5 = NULL, *c6 = NULL;
1241
1242                                 c1 = fio_uint_to_kmg(o->min_bs[DDIR_READ]);
1243                                 c2 = fio_uint_to_kmg(o->max_bs[DDIR_READ]);
1244                                 c3 = fio_uint_to_kmg(o->min_bs[DDIR_WRITE]);
1245                                 c4 = fio_uint_to_kmg(o->max_bs[DDIR_WRITE]);
1246
1247                                 if (!o->bs_is_seq_rand) {
1248                                         c5 = fio_uint_to_kmg(o->min_bs[DDIR_TRIM]);
1249                                         c6 = fio_uint_to_kmg(o->max_bs[DDIR_TRIM]);
1250                                 }
1251
1252                                 log_info("%s: (g=%d): rw=%s, ", td->o.name,
1253                                                         td->groupid,
1254                                                         ddir_str(o->td_ddir));
1255
1256                                 if (o->bs_is_seq_rand)
1257                                         log_info("bs(seq/rand)=%s-%s/%s-%s, ",
1258                                                         c1, c2, c3, c4);
1259                                 else
1260                                         log_info("bs=%s-%s/%s-%s/%s-%s, ",
1261                                                         c1, c2, c3, c4, c5, c6);
1262
1263                                 log_info("ioengine=%s, iodepth=%u\n",
1264                                                 td->io_ops->name, o->iodepth);
1265
1266                                 free(c1);
1267                                 free(c2);
1268                                 free(c3);
1269                                 free(c4);
1270                                 free(c5);
1271                                 free(c6);
1272                         }
1273                 } else if (job_add_num == 1)
1274                         log_info("...\n");
1275         }
1276
1277         /*
1278          * recurse add identical jobs, clear numjobs and stonewall options
1279          * as they don't apply to sub-jobs
1280          */
1281         numjobs = o->numjobs;
1282         while (--numjobs) {
1283                 struct thread_data *td_new = get_new_job(0, td, 1, jobname);
1284
1285                 if (!td_new)
1286                         goto err;
1287
1288                 td_new->o.numjobs = 1;
1289                 td_new->o.stonewall = 0;
1290                 td_new->o.new_group = 0;
1291
1292                 if (file_alloced) {
1293                         if (td_new->files) {
1294                                 struct fio_file *f;
1295                                 for_each_file(td_new, f, i) {
1296                                         if (f->file_name)
1297                                                 sfree(f->file_name);
1298                                         sfree(f);
1299                                 }
1300                                 free(td_new->files);
1301                                 td_new->files = NULL;
1302                         }
1303                         td_new->files_index = 0;
1304                         td_new->files_size = 0;
1305                         if (td_new->o.filename) {
1306                                 free(td_new->o.filename);
1307                                 td_new->o.filename = NULL;
1308                         }
1309                 }
1310
1311                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1312                         goto err;
1313         }
1314
1315         return 0;
1316 err:
1317         put_job(td);
1318         return -1;
1319 }
1320
1321 /*
1322  * Parse as if 'o' was a command line
1323  */
1324 void add_job_opts(const char **o, int client_type)
1325 {
1326         struct thread_data *td, *td_parent;
1327         int i, in_global = 1;
1328         char jobname[32];
1329
1330         i = 0;
1331         td_parent = td = NULL;
1332         while (o[i]) {
1333                 if (!strncmp(o[i], "name", 4)) {
1334                         in_global = 0;
1335                         if (td)
1336                                 add_job(td, jobname, 0, 0, client_type);
1337                         td = NULL;
1338                         sprintf(jobname, "%s", o[i] + 5);
1339                 }
1340                 if (in_global && !td_parent)
1341                         td_parent = get_new_job(1, &def_thread, 0, jobname);
1342                 else if (!in_global && !td) {
1343                         if (!td_parent)
1344                                 td_parent = &def_thread;
1345                         td = get_new_job(0, td_parent, 0, jobname);
1346                 }
1347                 if (in_global)
1348                         fio_options_parse(td_parent, (char **) &o[i], 1, 0);
1349                 else
1350                         fio_options_parse(td, (char **) &o[i], 1, 0);
1351                 i++;
1352         }
1353
1354         if (td)
1355                 add_job(td, jobname, 0, 0, client_type);
1356 }
1357
1358 static int skip_this_section(const char *name)
1359 {
1360         int i;
1361
1362         if (!nr_job_sections)
1363                 return 0;
1364         if (!strncmp(name, "global", 6))
1365                 return 0;
1366
1367         for (i = 0; i < nr_job_sections; i++)
1368                 if (!strcmp(job_sections[i], name))
1369                         return 0;
1370
1371         return 1;
1372 }
1373
1374 static int is_empty_or_comment(char *line)
1375 {
1376         unsigned int i;
1377
1378         for (i = 0; i < strlen(line); i++) {
1379                 if (line[i] == ';')
1380                         return 1;
1381                 if (line[i] == '#')
1382                         return 1;
1383                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1384                         return 0;
1385         }
1386
1387         return 1;
1388 }
1389
1390 /*
1391  * This is our [ini] type file parser.
1392  */
1393 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
1394 {
1395         unsigned int global;
1396         struct thread_data *td;
1397         char *string, *name;
1398         FILE *f;
1399         char *p;
1400         int ret = 0, stonewall;
1401         int first_sect = 1;
1402         int skip_fgets = 0;
1403         int inside_skip = 0;
1404         char **opts;
1405         int i, alloc_opts, num_opts;
1406
1407         if (is_buf)
1408                 f = NULL;
1409         else {
1410                 if (!strcmp(file, "-"))
1411                         f = stdin;
1412                 else
1413                         f = fopen(file, "r");
1414
1415                 if (!f) {
1416                         perror("fopen job file");
1417                         return 1;
1418                 }
1419         }
1420
1421         string = malloc(4096);
1422
1423         /*
1424          * it's really 256 + small bit, 280 should suffice
1425          */
1426         name = malloc(280);
1427         memset(name, 0, 280);
1428
1429         alloc_opts = 8;
1430         opts = malloc(sizeof(char *) * alloc_opts);
1431         num_opts = 0;
1432
1433         stonewall = stonewall_flag;
1434         do {
1435                 /*
1436                  * if skip_fgets is set, we already have loaded a line we
1437                  * haven't handled.
1438                  */
1439                 if (!skip_fgets) {
1440                         if (is_buf)
1441                                 p = strsep(&file, "\n");
1442                         else
1443                                 p = fgets(string, 4096, f);
1444                         if (!p)
1445                                 break;
1446                 }
1447
1448                 skip_fgets = 0;
1449                 strip_blank_front(&p);
1450                 strip_blank_end(p);
1451
1452                 if (is_empty_or_comment(p))
1453                         continue;
1454                 if (sscanf(p, "[%255[^\n]]", name) != 1) {
1455                         if (inside_skip)
1456                                 continue;
1457                         log_err("fio: option <%s> outside of [] job section\n",
1458                                                                         p);
1459                         break;
1460                 }
1461
1462                 name[strlen(name) - 1] = '\0';
1463
1464                 if (skip_this_section(name)) {
1465                         inside_skip = 1;
1466                         continue;
1467                 } else
1468                         inside_skip = 0;
1469
1470                 global = !strncmp(name, "global", 6);
1471
1472                 if (dump_cmdline) {
1473                         if (first_sect)
1474                                 log_info("fio ");
1475                         if (!global)
1476                                 log_info("--name=%s ", name);
1477                         first_sect = 0;
1478                 }
1479
1480                 td = get_new_job(global, &def_thread, 0, name);
1481                 if (!td) {
1482                         ret = 1;
1483                         break;
1484                 }
1485
1486                 /*
1487                  * Separate multiple job files by a stonewall
1488                  */
1489                 if (!global && stonewall) {
1490                         td->o.stonewall = stonewall;
1491                         stonewall = 0;
1492                 }
1493
1494                 num_opts = 0;
1495                 memset(opts, 0, alloc_opts * sizeof(char *));
1496
1497                 while (1) {
1498                         if (is_buf)
1499                                 p = strsep(&file, "\n");
1500                         else
1501                                 p = fgets(string, 4096, f);
1502                         if (!p)
1503                                 break;
1504
1505                         if (is_empty_or_comment(p))
1506                                 continue;
1507
1508                         strip_blank_front(&p);
1509
1510                         /*
1511                          * new section, break out and make sure we don't
1512                          * fgets() a new line at the top.
1513                          */
1514                         if (p[0] == '[') {
1515                                 skip_fgets = 1;
1516                                 break;
1517                         }
1518
1519                         strip_blank_end(p);
1520
1521                         if (num_opts == alloc_opts) {
1522                                 alloc_opts <<= 1;
1523                                 opts = realloc(opts,
1524                                                 alloc_opts * sizeof(char *));
1525                         }
1526
1527                         opts[num_opts] = strdup(p);
1528                         num_opts++;
1529                 }
1530
1531                 ret = fio_options_parse(td, opts, num_opts, dump_cmdline);
1532                 if (!ret)
1533                         ret = add_job(td, name, 0, 0, type);
1534                 else {
1535                         log_err("fio: job %s dropped\n", name);
1536                         put_job(td);
1537                 }
1538
1539                 for (i = 0; i < num_opts; i++)
1540                         free(opts[i]);
1541                 num_opts = 0;
1542         } while (!ret);
1543
1544         if (dump_cmdline)
1545                 log_info("\n");
1546
1547         i = 0;
1548         while (i < nr_job_sections) {
1549                 free(job_sections[i]);
1550                 i++;
1551         }
1552
1553         free(string);
1554         free(name);
1555         free(opts);
1556         if (!is_buf && f != stdin)
1557                 fclose(f);
1558         return ret;
1559 }
1560
1561 static int fill_def_thread(void)
1562 {
1563         memset(&def_thread, 0, sizeof(def_thread));
1564
1565         fio_getaffinity(getpid(), &def_thread.o.cpumask);
1566         def_thread.o.error_dump = 1;
1567
1568         /*
1569          * fill default options
1570          */
1571         fio_fill_default_options(&def_thread);
1572         return 0;
1573 }
1574
1575 static void usage(const char *name)
1576 {
1577         printf("%s\n", fio_version_string);
1578         printf("%s [options] [job options] <job file(s)>\n", name);
1579         printf("  --debug=options\tEnable debug logging. May be one/more of:\n"
1580                 "\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
1581                 "\t\t\tdiskutil,job,mutex,profile,time,net,rate,compress\n");
1582         printf("  --parse-only\t\tParse options only, don't start any IO\n");
1583         printf("  --output\t\tWrite output to file\n");
1584         printf("  --runtime\t\tRuntime in seconds\n");
1585         printf("  --bandwidth-log\tGenerate per-job bandwidth logs\n");
1586         printf("  --minimal\t\tMinimal (terse) output\n");
1587         printf("  --output-format=x\tOutput format (terse,json,normal)\n");
1588         printf("  --terse-version=x\tSet terse version output format to 'x'\n");
1589         printf("  --version\t\tPrint version info and exit\n");
1590         printf("  --help\t\tPrint this page\n");
1591         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
1592         printf("  --crctest\t\tTest speed of checksum functions\n");
1593         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
1594                 " them\n");
1595         printf("  --enghelp=engine\tPrint ioengine help, or list"
1596                 " available ioengines\n");
1597         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
1598                 " cmd\n");
1599         printf("  --showcmd\t\tTurn a job file into command line options\n");
1600         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
1601         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
1602         printf("  --eta-newline=time\tForce a new line for every 'time'");
1603         printf(" period passed\n");
1604         printf("  --status-interval=t\tForce full status dump every");
1605         printf(" 't' period passed\n");
1606         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
1607                 " writes\n");
1608         printf("  --section=name\tOnly run specified section in job file\n");
1609         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
1610                 " (def 1024)\n");
1611         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
1612         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1613         printf("  --server=args\t\tStart a backend fio server\n");
1614         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
1615         printf("  --client=hostname\tTalk to remote backend fio server at hostname\n");
1616         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
1617                 "\t\t\t(option=system,percpu) or run unit work\n"
1618                 "\t\t\tcalibration only (option=calibrate)\n");
1619 #ifdef CONFIG_ZLIB
1620         printf("  --inflate-log=log\tInflate and output compressed log\n");
1621 #endif
1622         printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1623         printf("\n                   Jens Axboe <jaxboe@fusionio.com>");
1624         printf("\n                   Jens Axboe <axboe@fb.com>\n");
1625 }
1626
1627 #ifdef FIO_INC_DEBUG
1628 struct debug_level debug_levels[] = {
1629         { .name = "process",
1630           .help = "Process creation/exit logging",
1631           .shift = FD_PROCESS,
1632         },
1633         { .name = "file",
1634           .help = "File related action logging",
1635           .shift = FD_FILE,
1636         },
1637         { .name = "io",
1638           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
1639           .shift = FD_IO,
1640         },
1641         { .name = "mem",
1642           .help = "Memory allocation/freeing logging",
1643           .shift = FD_MEM,
1644         },
1645         { .name = "blktrace",
1646           .help = "blktrace action logging",
1647           .shift = FD_BLKTRACE,
1648         },
1649         { .name = "verify",
1650           .help = "IO verification action logging",
1651           .shift = FD_VERIFY,
1652         },
1653         { .name = "random",
1654           .help = "Random generation logging",
1655           .shift = FD_RANDOM,
1656         },
1657         { .name = "parse",
1658           .help = "Parser logging",
1659           .shift = FD_PARSE,
1660         },
1661         { .name = "diskutil",
1662           .help = "Disk utility logging actions",
1663           .shift = FD_DISKUTIL,
1664         },
1665         { .name = "job",
1666           .help = "Logging related to creating/destroying jobs",
1667           .shift = FD_JOB,
1668         },
1669         { .name = "mutex",
1670           .help = "Mutex logging",
1671           .shift = FD_MUTEX
1672         },
1673         { .name = "profile",
1674           .help = "Logging related to profiles",
1675           .shift = FD_PROFILE,
1676         },
1677         { .name = "time",
1678           .help = "Logging related to time keeping functions",
1679           .shift = FD_TIME,
1680         },
1681         { .name = "net",
1682           .help = "Network logging",
1683           .shift = FD_NET,
1684         },
1685         { .name = "rate",
1686           .help = "Rate logging",
1687           .shift = FD_RATE,
1688         },
1689         { .name = "compress",
1690           .help = "Log compression logging",
1691           .shift = FD_COMPRESS,
1692         },
1693         { .name = NULL, },
1694 };
1695
1696 static int set_debug(const char *string)
1697 {
1698         struct debug_level *dl;
1699         char *p = (char *) string;
1700         char *opt;
1701         int i;
1702
1703         if (!strcmp(string, "?") || !strcmp(string, "help")) {
1704                 log_info("fio: dumping debug options:");
1705                 for (i = 0; debug_levels[i].name; i++) {
1706                         dl = &debug_levels[i];
1707                         log_info("%s,", dl->name);
1708                 }
1709                 log_info("all\n");
1710                 return 1;
1711         }
1712
1713         while ((opt = strsep(&p, ",")) != NULL) {
1714                 int found = 0;
1715
1716                 if (!strncmp(opt, "all", 3)) {
1717                         log_info("fio: set all debug options\n");
1718                         fio_debug = ~0UL;
1719                         continue;
1720                 }
1721
1722                 for (i = 0; debug_levels[i].name; i++) {
1723                         dl = &debug_levels[i];
1724                         found = !strncmp(opt, dl->name, strlen(dl->name));
1725                         if (!found)
1726                                 continue;
1727
1728                         if (dl->shift == FD_JOB) {
1729                                 opt = strchr(opt, ':');
1730                                 if (!opt) {
1731                                         log_err("fio: missing job number\n");
1732                                         break;
1733                                 }
1734                                 opt++;
1735                                 fio_debug_jobno = atoi(opt);
1736                                 log_info("fio: set debug jobno %d\n",
1737                                                         fio_debug_jobno);
1738                         } else {
1739                                 log_info("fio: set debug option %s\n", opt);
1740                                 fio_debug |= (1UL << dl->shift);
1741                         }
1742                         break;
1743                 }
1744
1745                 if (!found)
1746                         log_err("fio: debug mask %s not found\n", opt);
1747         }
1748         return 0;
1749 }
1750 #else
1751 static int set_debug(const char *string)
1752 {
1753         log_err("fio: debug tracing not included in build\n");
1754         return 1;
1755 }
1756 #endif
1757
1758 static void fio_options_fill_optstring(void)
1759 {
1760         char *ostr = cmd_optstr;
1761         int i, c;
1762
1763         c = i = 0;
1764         while (l_opts[i].name) {
1765                 ostr[c++] = l_opts[i].val;
1766                 if (l_opts[i].has_arg == required_argument)
1767                         ostr[c++] = ':';
1768                 else if (l_opts[i].has_arg == optional_argument) {
1769                         ostr[c++] = ':';
1770                         ostr[c++] = ':';
1771                 }
1772                 i++;
1773         }
1774         ostr[c] = '\0';
1775 }
1776
1777 static int client_flag_set(char c)
1778 {
1779         int i;
1780
1781         i = 0;
1782         while (l_opts[i].name) {
1783                 int val = l_opts[i].val;
1784
1785                 if (c == (val & 0xff))
1786                         return (val & FIO_CLIENT_FLAG);
1787
1788                 i++;
1789         }
1790
1791         return 0;
1792 }
1793
1794 static void parse_cmd_client(void *client, char *opt)
1795 {
1796         fio_client_add_cmd_option(client, opt);
1797 }
1798
1799 int parse_cmd_line(int argc, char *argv[], int client_type)
1800 {
1801         struct thread_data *td = NULL;
1802         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1803         char *ostr = cmd_optstr;
1804         void *pid_file = NULL;
1805         void *cur_client = NULL;
1806         int backend = 0;
1807
1808         /*
1809          * Reset optind handling, since we may call this multiple times
1810          * for the backend.
1811          */
1812         optind = 1;
1813
1814         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1815                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1816                         parse_cmd_client(cur_client, argv[optind - 1]);
1817                         c &= ~FIO_CLIENT_FLAG;
1818                 }
1819
1820                 switch (c) {
1821                 case 'a':
1822                         smalloc_pool_size = atoi(optarg);
1823                         break;
1824                 case 't':
1825                         if (check_str_time(optarg, &def_timeout, 1)) {
1826                                 log_err("fio: failed parsing time %s\n", optarg);
1827                                 do_exit++;
1828                                 exit_val = 1;
1829                         }
1830                         break;
1831                 case 'l':
1832                         log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
1833                         do_exit++;
1834                         exit_val = 1;
1835                         break;
1836                 case 'b':
1837                         write_bw_log = 1;
1838                         break;
1839                 case 'o':
1840                         if (f_out && f_out != stdout)
1841                                 fclose(f_out);
1842
1843                         f_out = fopen(optarg, "w+");
1844                         if (!f_out) {
1845                                 perror("fopen output");
1846                                 exit(1);
1847                         }
1848                         f_err = f_out;
1849                         break;
1850                 case 'm':
1851                         output_format = FIO_OUTPUT_TERSE;
1852                         break;
1853                 case 'F':
1854                         if (!optarg) {
1855                                 log_err("fio: missing --output-format argument\n");
1856                                 exit_val = 1;
1857                                 do_exit++;
1858                                 break;
1859                         }
1860                         if (!strcmp(optarg, "minimal") ||
1861                             !strcmp(optarg, "terse") ||
1862                             !strcmp(optarg, "csv"))
1863                                 output_format = FIO_OUTPUT_TERSE;
1864                         else if (!strcmp(optarg, "json"))
1865                                 output_format = FIO_OUTPUT_JSON;
1866                         else
1867                                 output_format = FIO_OUTPUT_NORMAL;
1868                         break;
1869                 case 'f':
1870                         append_terse_output = 1;
1871                         break;
1872                 case 'h':
1873                         did_arg = 1;
1874                         if (!cur_client) {
1875                                 usage(argv[0]);
1876                                 do_exit++;
1877                         }
1878                         break;
1879                 case 'c':
1880                         did_arg = 1;
1881                         if (!cur_client) {
1882                                 fio_show_option_help(optarg);
1883                                 do_exit++;
1884                         }
1885                         break;
1886                 case 'i':
1887                         did_arg = 1;
1888                         if (!cur_client) {
1889                                 fio_show_ioengine_help(optarg);
1890                                 do_exit++;
1891                         }
1892                         break;
1893                 case 's':
1894                         did_arg = 1;
1895                         dump_cmdline = 1;
1896                         break;
1897                 case 'r':
1898                         read_only = 1;
1899                         break;
1900                 case 'v':
1901                         did_arg = 1;
1902                         if (!cur_client) {
1903                                 log_info("%s\n", fio_version_string);
1904                                 do_exit++;
1905                         }
1906                         break;
1907                 case 'V':
1908                         terse_version = atoi(optarg);
1909                         if (!(terse_version == 2 || terse_version == 3 ||
1910                              terse_version == 4)) {
1911                                 log_err("fio: bad terse version format\n");
1912                                 exit_val = 1;
1913                                 do_exit++;
1914                         }
1915                         break;
1916                 case 'e':
1917                         if (!strcmp("always", optarg))
1918                                 eta_print = FIO_ETA_ALWAYS;
1919                         else if (!strcmp("never", optarg))
1920                                 eta_print = FIO_ETA_NEVER;
1921                         break;
1922                 case 'E': {
1923                         long long t = 0;
1924
1925                         if (str_to_decimal(optarg, &t, 0, NULL, 1)) {
1926                                 log_err("fio: failed parsing eta time %s\n", optarg);
1927                                 exit_val = 1;
1928                                 do_exit++;
1929                         }
1930                         eta_new_line = t;
1931                         break;
1932                         }
1933                 case 'd':
1934                         if (set_debug(optarg))
1935                                 do_exit++;
1936                         break;
1937                 case 'P':
1938                         did_arg = 1;
1939                         parse_only = 1;
1940                         break;
1941                 case 'x': {
1942                         size_t new_size;
1943
1944                         if (!strcmp(optarg, "global")) {
1945                                 log_err("fio: can't use global as only "
1946                                         "section\n");
1947                                 do_exit++;
1948                                 exit_val = 1;
1949                                 break;
1950                         }
1951                         new_size = (nr_job_sections + 1) * sizeof(char *);
1952                         job_sections = realloc(job_sections, new_size);
1953                         job_sections[nr_job_sections] = strdup(optarg);
1954                         nr_job_sections++;
1955                         break;
1956                         }
1957 #ifdef CONFIG_ZLIB
1958                 case 'X':
1959                         exit_val = iolog_file_inflate(optarg);
1960                         did_arg++;
1961                         do_exit++;
1962                         break;
1963 #endif
1964                 case 'p':
1965                         did_arg = 1;
1966                         if (exec_profile)
1967                                 free(exec_profile);
1968                         exec_profile = strdup(optarg);
1969                         break;
1970                 case FIO_GETOPT_JOB: {
1971                         const char *opt = l_opts[lidx].name;
1972                         char *val = optarg;
1973
1974                         if (!strncmp(opt, "name", 4) && td) {
1975                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
1976                                 if (ret)
1977                                         goto out_free;
1978                                 td = NULL;
1979                                 did_arg = 1;
1980                         }
1981                         if (!td) {
1982                                 int is_section = !strncmp(opt, "name", 4);
1983                                 int global = 0;
1984
1985                                 if (!is_section || !strncmp(val, "global", 6))
1986                                         global = 1;
1987
1988                                 if (is_section && skip_this_section(val))
1989                                         continue;
1990
1991                                 td = get_new_job(global, &def_thread, 1, NULL);
1992                                 if (!td || ioengine_load(td)) {
1993                                         if (td) {
1994                                                 put_job(td);
1995                                                 td = NULL;
1996                                         }
1997                                         do_exit++;
1998                                         break;
1999                                 }
2000                                 fio_options_set_ioengine_opts(l_opts, td);
2001                         }
2002
2003                         if ((!val || !strlen(val)) &&
2004                             l_opts[lidx].has_arg == required_argument) {
2005                                 log_err("fio: option %s requires an argument\n", opt);
2006                                 ret = 1;
2007                         } else
2008                                 ret = fio_cmd_option_parse(td, opt, val);
2009
2010                         if (ret) {
2011                                 if (td) {
2012                                         put_job(td);
2013                                         td = NULL;
2014                                 }
2015                                 do_exit++;
2016                         }
2017
2018                         if (!ret && !strcmp(opt, "ioengine")) {
2019                                 free_ioengine(td);
2020                                 if (ioengine_load(td)) {
2021                                         put_job(td);
2022                                         td = NULL;
2023                                         do_exit++;
2024                                         break;
2025                                 }
2026                                 fio_options_set_ioengine_opts(l_opts, td);
2027                         }
2028                         break;
2029                 }
2030                 case FIO_GETOPT_IOENGINE: {
2031                         const char *opt = l_opts[lidx].name;
2032                         char *val = optarg;
2033
2034                         if (!td)
2035                                 break;
2036
2037                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
2038                         break;
2039                 }
2040                 case 'w':
2041                         warnings_fatal = 1;
2042                         break;
2043                 case 'j':
2044                         max_jobs = atoi(optarg);
2045                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2046                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
2047                                 do_exit++;
2048                                 exit_val = 1;
2049                         }
2050                         break;
2051                 case 'S':
2052                         did_arg = 1;
2053 #ifndef CONFIG_NO_SHM
2054                         if (nr_clients) {
2055                                 log_err("fio: can't be both client and server\n");
2056                                 do_exit++;
2057                                 exit_val = 1;
2058                                 break;
2059                         }
2060                         if (optarg)
2061                                 fio_server_set_arg(optarg);
2062                         is_backend = 1;
2063                         backend = 1;
2064 #else
2065                         log_err("fio: client/server requires SHM support\n");
2066                         do_exit++;
2067                         exit_val = 1;
2068 #endif
2069                         break;
2070                 case 'D':
2071                         if (pid_file)
2072                                 free(pid_file);
2073                         pid_file = strdup(optarg);
2074                         break;
2075                 case 'I':
2076                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
2077                                 /* exit on error and calibration only */
2078                                 did_arg = 1;
2079                                 do_exit++;
2080                                 if (ret == -1)
2081                                         exit_val = 1;
2082                         }
2083                         break;
2084                 case 'C':
2085                         did_arg = 1;
2086                         if (is_backend) {
2087                                 log_err("fio: can't be both client and server\n");
2088                                 do_exit++;
2089                                 exit_val = 1;
2090                                 break;
2091                         }
2092                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2093                                 log_err("fio: failed adding client %s\n", optarg);
2094                                 do_exit++;
2095                                 exit_val = 1;
2096                                 break;
2097                         }
2098                         /*
2099                          * If the next argument exists and isn't an option,
2100                          * assume it's a job file for this client only.
2101                          */
2102                         while (optind < argc) {
2103                                 if (!strncmp(argv[optind], "--", 2) ||
2104                                     !strncmp(argv[optind], "-", 1))
2105                                         break;
2106
2107                                 fio_client_add_ini_file(cur_client, argv[optind]);
2108                                 optind++;
2109                         }
2110                         break;
2111                 case 'T':
2112                         did_arg = 1;
2113                         do_exit++;
2114                         exit_val = fio_monotonic_clocktest();
2115                         break;
2116                 case 'G':
2117                         did_arg = 1;
2118                         do_exit++;
2119                         exit_val = fio_crctest(optarg);
2120                         break;
2121                 case 'L': {
2122                         long long val;
2123
2124                         if (check_str_time(optarg, &val, 0)) {
2125                                 log_err("fio: failed parsing time %s\n", optarg);
2126                                 do_exit++;
2127                                 exit_val = 1;
2128                                 break;
2129                         }
2130                         status_interval = val * 1000;
2131                         break;
2132                         }
2133                 case '?':
2134                         log_err("%s: unrecognized option '%s'\n", argv[0],
2135                                                         argv[optind - 1]);
2136                 default:
2137                         do_exit++;
2138                         exit_val = 1;
2139                         break;
2140                 }
2141                 if (do_exit)
2142                         break;
2143         }
2144
2145         if (do_exit && !(is_backend || nr_clients))
2146                 exit(exit_val);
2147
2148         if (nr_clients && fio_clients_connect())
2149                 exit(1);
2150
2151         if (is_backend && backend)
2152                 return fio_start_server(pid_file);
2153         else if (pid_file)
2154                 free(pid_file);
2155
2156         if (td) {
2157                 if (!ret) {
2158                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2159                         if (ret)
2160                                 did_arg = 1;
2161                 }
2162         }
2163
2164         while (!ret && optind < argc) {
2165                 ini_idx++;
2166                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2167                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2168                 optind++;
2169         }
2170
2171 out_free:
2172         if (pid_file)
2173                 free(pid_file);
2174
2175         return ini_idx;
2176 }
2177
2178 int fio_init_options(void)
2179 {
2180         f_out = stdout;
2181         f_err = stderr;
2182
2183         fio_options_fill_optstring();
2184         fio_options_dup_and_init(l_opts);
2185
2186         atexit(free_shm);
2187
2188         if (fill_def_thread())
2189                 return 1;
2190
2191         return 0;
2192 }
2193
2194 extern int fio_check_options(struct thread_options *);
2195
2196 int parse_options(int argc, char *argv[])
2197 {
2198         const int type = FIO_CLIENT_TYPE_CLI;
2199         int job_files, i;
2200
2201         if (fio_init_options())
2202                 return 1;
2203         if (fio_test_cconv(&def_thread.o))
2204                 log_err("fio: failed internal cconv test\n");
2205
2206         job_files = parse_cmd_line(argc, argv, type);
2207
2208         if (job_files > 0) {
2209                 for (i = 0; i < job_files; i++) {
2210                         if (i && fill_def_thread())
2211                                 return 1;
2212                         if (nr_clients) {
2213                                 if (fio_clients_send_ini(ini_file[i]))
2214                                         return 1;
2215                                 free(ini_file[i]);
2216                         } else if (!is_backend) {
2217                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2218                                         return 1;
2219                                 free(ini_file[i]);
2220                         }
2221                 }
2222         } else if (nr_clients) {
2223                 if (fill_def_thread())
2224                         return 1;
2225                 if (fio_clients_send_ini(NULL))
2226                         return 1;
2227         }
2228
2229         free(ini_file);
2230         fio_options_free(&def_thread);
2231         filesetup_mem_free();
2232
2233         if (!thread_number) {
2234                 if (parse_dryrun())
2235                         return 0;
2236                 if (exec_profile)
2237                         return 0;
2238                 if (is_backend || nr_clients)
2239                         return 0;
2240                 if (did_arg)
2241                         return 0;
2242
2243                 log_err("No jobs(s) defined\n\n");
2244
2245                 if (!did_arg) {
2246                         usage(argv[0]);
2247                         return 1;
2248                 }
2249
2250                 return 0;
2251         }
2252
2253         if (def_thread.o.gtod_offload) {
2254                 fio_gtod_init();
2255                 fio_gtod_offload = 1;
2256                 fio_gtod_cpu = def_thread.o.gtod_cpu;
2257         }
2258
2259         if (output_format == FIO_OUTPUT_NORMAL)
2260                 log_info("%s\n", fio_version_string);
2261
2262         return 0;
2263 }
2264
2265 void options_default_fill(struct thread_options *o)
2266 {
2267         memcpy(o, &def_thread.o, sizeof(*o));
2268 }