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 *) "remote-config",
 221                 .has_arg        = required_argument,
 222                 .val            = 'R',
 223         },
 224         {
 225                 .name           = (char *) "cpuclock-test",
 226                 .has_arg        = no_argument,
 227                 .val            = 'T',
 228         },
 229         {
 230                 .name           = (char *) "crctest",
 231                 .has_arg        = optional_argument,
 232                 .val            = 'G',
 233         },
 234         {
 235                 .name           = (char *) "idle-prof",
 236                 .has_arg        = required_argument,
 237                 .val            = 'I',
 238         },
 239         {
 240                 .name           = (char *) "status-interval",
 241                 .has_arg        = required_argument,
 242                 .val            = 'L',
 243         },
 244         {
 245                 .name           = NULL,
 246         },
 247 };
 248
 249 void free_threads_shm(void)
 250 {
 251         if (threads) {
 252                 void *tp = threads;
 253 #ifndef CONFIG_NO_SHM
 254                 struct shmid_ds sbuf;
 255
 256                 threads = NULL;
 257                 shmdt(tp);
 258                 shmctl(shm_id, IPC_RMID, &sbuf);
 259                 shm_id = -1;
 260 #else
 261                 threads = NULL;
 262                 free(tp);
 263 #endif
 264         }
 265 }
 266
 267 static void free_shm(void)
 268 {
 269         if (threads) {
 270                 file_hash_exit();
 271                 flow_exit();
 272                 fio_debug_jobp = NULL;
 273                 free_threads_shm();
 274         }
 275
 276         options_free(fio_options, &def_thread);
 277         fio_filelock_exit();
 278         scleanup();
 279 }
 280
 281 /*
 282  * The thread area is shared between the main process and the job
 283  * threads/processes. So setup a shared memory segment that will hold
 284  * all the job info. We use the end of the region for keeping track of
 285  * open files across jobs, for file sharing.
 286  */
 287 static int setup_thread_area(void)
 288 {
 289         void *hash;
 290
 291         if (threads)
 292                 return 0;
 293
 294         /*
 295          * 1024 is too much on some machines, scale max_jobs if
 296          * we get a failure that looks like too large a shm segment
 297          */
 298         do {
 299                 size_t size = max_jobs * sizeof(struct thread_data);
 300
 301                 size += file_hash_size;
 302                 size += sizeof(unsigned int);
 303
 304 #ifndef CONFIG_NO_SHM
 305                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 306                 if (shm_id != -1)
 307                         break;
 308                 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
 309                         perror("shmget");
 310                         break;
 311                 }
 312 #else
 313                 threads = malloc(size);
 314                 if (threads)
 315                         break;
 316 #endif
 317
 318                 max_jobs >>= 1;
 319         } while (max_jobs);
 320
 321 #ifndef CONFIG_NO_SHM
 322         if (shm_id == -1)
 323                 return 1;
 324
 325         threads = shmat(shm_id, NULL, 0);
 326         if (threads == (void *) -1) {
 327                 perror("shmat");
 328                 return 1;
 329         }
 330 #endif
 331
 332         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 333         hash = (void *) threads + max_jobs * sizeof(struct thread_data);
 334         fio_debug_jobp = (void *) hash + file_hash_size;
 335         *fio_debug_jobp = -1;
 336         file_hash_init(hash);
 337
 338         flow_init();
 339
 340         return 0;
 341 }
 342
 343 static void set_cmd_options(struct thread_data *td)
 344 {
 345         struct thread_options *o = &td->o;
 346
 347         if (!o->timeout)
 348                 o->timeout = def_timeout;
 349 }
 350
 351 /*
 352  * Return a free job structure.
 353  */
 354 static struct thread_data *get_new_job(int global, struct thread_data *parent,
 355                                        int preserve_eo, const char *jobname)
 356 {
 357         struct thread_data *td;
 358
 359         if (global) {
 360                 set_cmd_options(&def_thread);
 361                 return &def_thread;
 362         }
 363         if (setup_thread_area()) {
 364                 log_err("error: failed to setup shm segment\n");
 365                 return NULL;
 366         }
 367         if (thread_number >= max_jobs) {
 368                 log_err("error: maximum number of jobs (%d) reached.\n",
 369                                 max_jobs);
 370                 return NULL;
 371         }
 372
 373         td = &threads[thread_number++];
 374         *td = *parent;
 375
 376         td->io_ops = NULL;
 377         if (!preserve_eo)
 378                 td->eo = NULL;
 379
 380         td->o.uid = td->o.gid = -1U;
 381
 382         dup_files(td, parent);
 383         fio_options_mem_dupe(td);
 384
 385         profile_add_hooks(td);
 386
 387         td->thread_number = thread_number;
 388         td->subjob_number = 0;
 389
 390         if (jobname)
 391                 td->o.name = strdup(jobname);
 392
 393         if (!parent->o.group_reporting)
 394                 stat_number++;
 395
 396         set_cmd_options(td);
 397         return td;
 398 }
 399
 400 static void put_job(struct thread_data *td)
 401 {
 402         if (td == &def_thread)
 403                 return;
 404
 405         profile_td_exit(td);
 406         flow_exit_job(td);
 407
 408         if (td->error)
 409                 log_info("fio: %s\n", td->verror);
 410
 411         fio_options_free(td);
 412         if (td->io_ops)
 413                 free_ioengine(td);
 414
 415         if (td->o.name)
 416                 free(td->o.name);
 417
 418         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 419         thread_number--;
 420 }
 421
 422 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 423 {
 424         unsigned int bs = td->o.min_bs[ddir];
 425
 426         assert(ddir_rw(ddir));
 427
 428         if (td->o.rate[ddir])
 429                 td->rate_bps[ddir] = td->o.rate[ddir];
 430         else
 431                 td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs;
 432
 433         if (!td->rate_bps[ddir]) {
 434                 log_err("rate lower than supported\n");
 435                 return -1;
 436         }
 437
 438         td->rate_pending_usleep[ddir] = 0;
 439         return 0;
 440 }
 441
 442 static int setup_rate(struct thread_data *td)
 443 {
 444         int ret = 0;
 445
 446         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
 447                 ret = __setup_rate(td, DDIR_READ);
 448         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
 449                 ret |= __setup_rate(td, DDIR_WRITE);
 450         if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
 451                 ret |= __setup_rate(td, DDIR_TRIM);
 452
 453         return ret;
 454 }
 455
 456 static int fixed_block_size(struct thread_options *o)
 457 {
 458         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 459                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 460                 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
 461                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
 462                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
 463 }
 464
 465
 466 static unsigned long long get_rand_start_delay(struct thread_data *td)
 467 {
 468         unsigned long long delayrange;
 469         unsigned long r;
 470
 471         delayrange = td->o.start_delay_high - td->o.start_delay;
 472
 473         r = __rand(&td->delay_state);
 474         delayrange = (unsigned long long) ((double) delayrange * (r / (FRAND_MAX + 1.0)));
 475
 476         delayrange += td->o.start_delay;
 477         return delayrange;
 478 }
 479
 480 /*
 481  * Lazy way of fixing up options that depend on each other. We could also
 482  * define option callback handlers, but this is easier.
 483  */
 484 static int fixup_options(struct thread_data *td)
 485 {
 486         struct thread_options *o = &td->o;
 487         int ret = 0;
 488
 489 #ifndef FIO_HAVE_PSHARED_MUTEX
 490         if (!o->use_thread) {
 491                 log_info("fio: this platform does not support process shared"
 492                          " mutexes, forcing use of threads. Use the 'thread'"
 493                          " option to get rid of this warning.\n");
 494                 o->use_thread = 1;
 495                 ret = warnings_fatal;
 496         }
 497 #endif
 498
 499         if (o->write_iolog_file && o->read_iolog_file) {
 500                 log_err("fio: read iolog overrides write_iolog\n");
 501                 free(o->write_iolog_file);
 502                 o->write_iolog_file = NULL;
 503                 ret = warnings_fatal;
 504         }
 505
 506         /*
 507          * only really works with 1 file
 508          */
 509         if (o->zone_size && o->open_files > 1)
 510                 o->zone_size = 0;
 511
 512         /*
 513          * If zone_range isn't specified, backward compatibility dictates it
 514          * should be made equal to zone_size.
 515          */
 516         if (o->zone_size && !o->zone_range)
 517                 o->zone_range = o->zone_size;
 518
 519         /*
 520          * Reads can do overwrites, we always need to pre-create the file
 521          */
 522         if (td_read(td) || td_rw(td))
 523                 o->overwrite = 1;
 524
 525         if (!o->min_bs[DDIR_READ])
 526                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
 527         if (!o->max_bs[DDIR_READ])
 528                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 529         if (!o->min_bs[DDIR_WRITE])
 530                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 531         if (!o->max_bs[DDIR_WRITE])
 532                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 533         if (!o->min_bs[DDIR_TRIM])
 534                 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 535         if (!o->max_bs[DDIR_TRIM])
 536                 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 537
 538
 539         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 540         o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
 541
 542         /*
 543          * For random IO, allow blockalign offset other than min_bs.
 544          */
 545         if (!o->ba[DDIR_READ] || !td_random(td))
 546                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
 547         if (!o->ba[DDIR_WRITE] || !td_random(td))
 548                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
 549         if (!o->ba[DDIR_TRIM] || !td_random(td))
 550                 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
 551
 552         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 553             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
 554             o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
 555             !o->norandommap) {
 556                 log_err("fio: Any use of blockalign= turns off randommap\n");
 557                 o->norandommap = 1;
 558                 ret = warnings_fatal;
 559         }
 560
 561         if (!o->file_size_high)
 562                 o->file_size_high = o->file_size_low;
 563
 564         if (o->start_delay_high)
 565                 o->start_delay = get_rand_start_delay(td);
 566
 567         if (o->norandommap && o->verify != VERIFY_NONE
 568             && !fixed_block_size(o))  {
 569                 log_err("fio: norandommap given for variable block sizes, "
 570                         "verify disabled\n");
 571                 o->verify = VERIFY_NONE;
 572                 ret = warnings_fatal;
 573         }
 574         if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
 575                 log_err("fio: bs_unaligned may not work with raw io\n");
 576
 577         /*
 578          * thinktime_spin must be less than thinktime
 579          */
 580         if (o->thinktime_spin > o->thinktime)
 581                 o->thinktime_spin = o->thinktime;
 582
 583         /*
 584          * The low water mark cannot be bigger than the iodepth
 585          */
 586         if (o->iodepth_low > o->iodepth || !o->iodepth_low)
 587                 o->iodepth_low = o->iodepth;
 588
 589         /*
 590          * If batch number isn't set, default to the same as iodepth
 591          */
 592         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 593                 o->iodepth_batch = o->iodepth;
 594
 595         if (o->nr_files > td->files_index)
 596                 o->nr_files = td->files_index;
 597
 598         if (o->open_files > o->nr_files || !o->open_files)
 599                 o->open_files = o->nr_files;
 600
 601         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
 602             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
 603             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 604             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 605                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 606                 ret = 1;
 607         }
 608         if ((o->rate[DDIR_READ] < o->ratemin[DDIR_READ]) ||
 609             (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE]) ||
 610             (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM]) ||
 611             (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ]) ||
 612             (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE]) ||
 613             (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM])) {
 614                 log_err("fio: minimum rate exceeds rate\n");
 615                 ret = 1;
 616         }
 617
 618         if (!o->timeout && o->time_based) {
 619                 log_err("fio: time_based requires a runtime/timeout setting\n");
 620                 o->time_based = 0;
 621                 ret = warnings_fatal;
 622         }
 623
 624         if (o->fill_device && !o->size)
 625                 o->size = -1ULL;
 626
 627         if (o->verify != VERIFY_NONE) {
 628                 if (td_write(td) && o->do_verify && o->numjobs > 1) {
 629                         log_info("Multiple writers may overwrite blocks that "
 630                                 "belong to other jobs. This can cause "
 631                                 "verification failures.\n");
 632                         ret = warnings_fatal;
 633                 }
 634
 635                 o->refill_buffers = 1;
 636                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 637                     !o->verify_interval)
 638                         o->verify_interval = o->min_bs[DDIR_WRITE];
 639
 640                 /*
 641                  * Verify interval must be smaller or equal to the
 642                  * write size.
 643                  */
 644                 if (o->verify_interval > o->min_bs[DDIR_WRITE])
 645                         o->verify_interval = o->min_bs[DDIR_WRITE];
 646                 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
 647                         o->verify_interval = o->min_bs[DDIR_READ];
 648         }
 649
 650         if (o->pre_read) {
 651                 o->invalidate_cache = 0;
 652                 if (td->io_ops->flags & FIO_PIPEIO) {
 653                         log_info("fio: cannot pre-read files with an IO engine"
 654                                  " that isn't seekable. Pre-read disabled.\n");
 655                         ret = warnings_fatal;
 656                 }
 657         }
 658
 659         if (!o->unit_base) {
 660                 if (td->io_ops->flags & FIO_BIT_BASED)
 661                         o->unit_base = 1;
 662                 else
 663                         o->unit_base = 8;
 664         }
 665
 666 #ifndef CONFIG_FDATASYNC
 667         if (o->fdatasync_blocks) {
 668                 log_info("fio: this platform does not support fdatasync()"
 669                          " falling back to using fsync().  Use the 'fsync'"
 670                          " option instead of 'fdatasync' to get rid of"
 671                          " this warning\n");
 672                 o->fsync_blocks = o->fdatasync_blocks;
 673                 o->fdatasync_blocks = 0;
 674                 ret = warnings_fatal;
 675         }
 676 #endif
 677
 678 #ifdef WIN32
 679         /*
 680          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 681          * so fail if we're passed those flags
 682          */
 683         if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
 684                 log_err("fio: Windows does not support direct or non-buffered io with"
 685                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 686                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 687                 ret = 1;
 688         }
 689 #endif
 690
 691         /*
 692          * For fully compressible data, just zero them at init time.
 693          * It's faster than repeatedly filling it.
 694          */
 695         if (td->o.compress_percentage == 100) {
 696                 td->o.zero_buffers = 1;
 697                 td->o.compress_percentage = 0;
 698         }
 699
 700         /*
 701          * Using a non-uniform random distribution excludes usage of
 702          * a random map
 703          */
 704         if (td->o.random_distribution != FIO_RAND_DIST_RANDOM)
 705                 td->o.norandommap = 1;
 706
 707         /*
 708          * If size is set but less than the min block size, complain
 709          */
 710         if (o->size && o->size < td_min_bs(td)) {
 711                 log_err("fio: size too small, must be larger than the IO size: %llu\n", (unsigned long long) o->size);
 712                 ret = 1;
 713         }
 714
 715         /*
 716          * O_ATOMIC implies O_DIRECT
 717          */
 718         if (td->o.oatomic)
 719                 td->o.odirect = 1;
 720
 721         /*
 722          * If randseed is set, that overrides randrepeat
 723          */
 724         if (td->o.rand_seed)
 725                 td->o.rand_repeatable = 0;
 726
 727         if ((td->io_ops->flags & FIO_NOEXTEND) && td->o.file_append) {
 728                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
 729                 ret = 1;
 730         }
 731
 732         return ret;
 733 }
 734
 735 /*
 736  * This function leaks the buffer
 737  */
 738 char *fio_uint_to_kmg(unsigned int val)
 739 {
 740         char *buf = malloc(32);
 741         char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
 742         char *p = post;
 743
 744         do {
 745                 if (val & 1023)
 746                         break;
 747
 748                 val >>= 10;
 749                 p++;
 750         } while (*p);
 751
 752         snprintf(buf, 32, "%u%c", val, *p);
 753         return buf;
 754 }
 755
 756 /* External engines are specified by "external:name.o") */
 757 static const char *get_engine_name(const char *str)
 758 {
 759         char *p = strstr(str, ":");
 760
 761         if (!p)
 762                 return str;
 763
 764         p++;
 765         strip_blank_front(&p);
 766         strip_blank_end(p);
 767         return p;
 768 }
 769
 770 static int exists_and_not_file(const char *filename)
 771 {
 772         struct stat sb;
 773
 774         if (lstat(filename, &sb) == -1)
 775                 return 0;
 776
 777         /* \\.\ is the device namespace in Windows, where every file
 778          * is a device node */
 779         if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
 780                 return 0;
 781
 782         return 1;
 783 }
 784
 785 static void td_fill_rand_seeds_internal(struct thread_data *td)
 786 {
 787         init_rand_seed(&td->bsrange_state, td->rand_seeds[FIO_RAND_BS_OFF]);
 788         init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF]);
 789         init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF]);
 790
 791         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 792                 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF]);
 793
 794         init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF]);
 795         init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF]);
 796         init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY]);
 797
 798         if (!td_random(td))
 799                 return;
 800
 801         if (td->o.rand_repeatable)
 802                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
 803
 804         init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
 805         init_rand_seed(&td->seq_rand_state[DDIR_READ], td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF]);
 806         init_rand_seed(&td->seq_rand_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_SEQ_RAND_WRITE_OFF]);
 807         init_rand_seed(&td->seq_rand_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_SEQ_RAND_TRIM_OFF]);
 808 }
 809
 810 void td_fill_rand_seeds(struct thread_data *td)
 811 {
 812         if (td->o.allrand_repeatable) {
 813                 unsigned int i;
 814
 815                 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
 816                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
 817                                 + i;
 818         }
 819
 820         td_fill_rand_seeds_internal(td);
 821
 822         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF]);
 823         frand_copy(&td->buf_state_prev, &td->buf_state);
 824
 825         init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF]);
 826 }
 827
 828 /*
 829  * Initializes the ioengine configured for a job, if it has not been done so
 830  * already.
 831  */
 832 int ioengine_load(struct thread_data *td)
 833 {
 834         const char *engine;
 835
 836         /*
 837          * Engine has already been loaded.
 838          */
 839         if (td->io_ops)
 840                 return 0;
 841         if (!td->o.ioengine) {
 842                 log_err("fio: internal fault, no IO engine specified\n");
 843                 return 1;
 844         }
 845
 846         engine = get_engine_name(td->o.ioengine);
 847         td->io_ops = load_ioengine(td, engine);
 848         if (!td->io_ops) {
 849                 log_err("fio: failed to load engine %s\n", engine);
 850                 return 1;
 851         }
 852
 853         if (td->io_ops->option_struct_size && td->io_ops->options) {
 854                 /*
 855                  * In cases where td->eo is set, clone it for a child thread.
 856                  * This requires that the parent thread has the same ioengine,
 857                  * but that requirement must be enforced by the code which
 858                  * cloned the thread.
 859                  */
 860                 void *origeo = td->eo;
 861                 /*
 862                  * Otherwise use the default thread options.
 863                  */
 864                 if (!origeo && td != &def_thread && def_thread.eo &&
 865                     def_thread.io_ops->options == td->io_ops->options)
 866                         origeo = def_thread.eo;
 867
 868                 options_init(td->io_ops->options);
 869                 td->eo = malloc(td->io_ops->option_struct_size);
 870                 /*
 871                  * Use the default thread as an option template if this uses the
 872                  * same options structure and there are non-default options
 873                  * used.
 874                  */
 875                 if (origeo) {
 876                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
 877                         options_mem_dupe(td->eo, td->io_ops->options);
 878                 } else {
 879                         memset(td->eo, 0, td->io_ops->option_struct_size);
 880                         fill_default_options(td->eo, td->io_ops->options);
 881                 }
 882                 *(struct thread_data **)td->eo = td;
 883         }
 884
 885         return 0;
 886 }
 887
 888 static void init_flags(struct thread_data *td)
 889 {
 890         struct thread_options *o = &td->o;
 891
 892         if (o->verify_backlog)
 893                 td->flags |= TD_F_VER_BACKLOG;
 894         if (o->trim_backlog)
 895                 td->flags |= TD_F_TRIM_BACKLOG;
 896         if (o->read_iolog_file)
 897                 td->flags |= TD_F_READ_IOLOG;
 898         if (o->refill_buffers)
 899                 td->flags |= TD_F_REFILL_BUFFERS;
 900         if (o->scramble_buffers)
 901                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
 902         if (o->verify != VERIFY_NONE)
 903                 td->flags |= TD_F_VER_NONE;
 904 }
 905
 906 static int setup_random_seeds(struct thread_data *td)
 907 {
 908         unsigned long seed;
 909         unsigned int i;
 910
 911         if (!td->o.rand_repeatable && !td->o.rand_seed)
 912                 return init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds));
 913
 914         if (!td->o.rand_seed)
 915                 seed = 0x89;
 916         else
 917                 seed = td->o.rand_seed;
 918
 919         for (i = 0; i < 4; i++)
 920                 seed *= 0x9e370001UL;
 921
 922         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
 923                 td->rand_seeds[i] = seed;
 924                 seed *= 0x9e370001UL;
 925         }
 926
 927         td_fill_rand_seeds(td);
 928         return 0;
 929 }
 930
 931 enum {
 932         FPRE_NONE = 0,
 933         FPRE_JOBNAME,
 934         FPRE_JOBNUM,
 935         FPRE_FILENUM
 936 };
 937
 938 static struct fpre_keyword {
 939         const char *keyword;
 940         size_t strlen;
 941         int key;
 942 } fpre_keywords[] = {
 943         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
 944         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
 945         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
 946         { .keyword = NULL, },
 947         };
 948
 949 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
 950                            const char *jobname, int jobnum, int filenum)
 951 {
 952         struct fpre_keyword *f;
 953         char copy[PATH_MAX];
 954         size_t dst_left = PATH_MAX - 1;
 955
 956         if (!o->filename_format || !strlen(o->filename_format)) {
 957                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
 958                 return NULL;
 959         }
 960
 961         for (f = &fpre_keywords[0]; f->keyword; f++)
 962                 f->strlen = strlen(f->keyword);
 963
 964         buf[buf_size - 1] = '\0';
 965         strncpy(buf, o->filename_format, buf_size - 1);
 966
 967         memset(copy, 0, sizeof(copy));
 968         for (f = &fpre_keywords[0]; f->keyword; f++) {
 969                 do {
 970                         size_t pre_len, post_start = 0;
 971                         char *str, *dst = copy;
 972
 973                         str = strcasestr(buf, f->keyword);
 974                         if (!str)
 975                                 break;
 976
 977                         pre_len = str - buf;
 978                         if (strlen(str) != f->strlen)
 979                                 post_start = pre_len + f->strlen;
 980
 981                         if (pre_len) {
 982                                 strncpy(dst, buf, pre_len);
 983                                 dst += pre_len;
 984                                 dst_left -= pre_len;
 985                         }
 986
 987                         switch (f->key) {
 988                         case FPRE_JOBNAME: {
 989                                 int ret;
 990
 991                                 ret = snprintf(dst, dst_left, "%s", jobname);
 992                                 if (ret < 0)
 993                                         break;
 994                                 dst += ret;
 995                                 dst_left -= ret;
 996                                 break;
 997                                 }
 998                         case FPRE_JOBNUM: {
 999                                 int ret;
1000
1001                                 ret = snprintf(dst, dst_left, "%d", jobnum);
1002                                 if (ret < 0)
1003                                         break;
1004                                 dst += ret;
1005                                 dst_left -= ret;
1006                                 break;
1007                                 }
1008                         case FPRE_FILENUM: {
1009                                 int ret;
1010
1011                                 ret = snprintf(dst, dst_left, "%d", filenum);
1012                                 if (ret < 0)
1013                                         break;
1014                                 dst += ret;
1015                                 dst_left -= ret;
1016                                 break;
1017                                 }
1018                         default:
1019                                 assert(0);
1020                                 break;
1021                         }
1022
1023                         if (post_start)
1024                                 strncpy(dst, buf + post_start, dst_left);
1025
1026                         strncpy(buf, copy, buf_size - 1);
1027                 } while (1);
1028         }
1029
1030         return buf;
1031 }
1032
1033 int parse_dryrun(void)
1034 {
1035         return dump_cmdline || parse_only;
1036 }
1037
1038 /*
1039  * Adds a job to the list of things todo. Sanitizes the various options
1040  * to make sure we don't have conflicts, and initializes various
1041  * members of td.
1042  */
1043 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1044                    int recursed, int client_type)
1045 {
1046         unsigned int i;
1047         char fname[PATH_MAX];
1048         int numjobs, file_alloced;
1049         struct thread_options *o = &td->o;
1050         char logname[PATH_MAX + 32];
1051
1052         /*
1053          * the def_thread is just for options, it's not a real job
1054          */
1055         if (td == &def_thread)
1056                 return 0;
1057
1058         init_flags(td);
1059
1060         /*
1061          * if we are just dumping the output command line, don't add the job
1062          */
1063         if (parse_dryrun()) {
1064                 put_job(td);
1065                 return 0;
1066         }
1067
1068         td->client_type = client_type;
1069
1070         if (profile_td_init(td))
1071                 goto err;
1072
1073         if (ioengine_load(td))
1074                 goto err;
1075
1076         if (o->odirect)
1077                 td->io_ops->flags |= FIO_RAWIO;
1078
1079         file_alloced = 0;
1080         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1081                 file_alloced = 1;
1082
1083                 if (o->nr_files == 1 && exists_and_not_file(jobname))
1084                         add_file(td, jobname, job_add_num, 0);
1085                 else {
1086                         for (i = 0; i < o->nr_files; i++)
1087                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1088                 }
1089         }
1090
1091         if (fixup_options(td))
1092                 goto err;
1093
1094         flow_init_job(td);
1095
1096         /*
1097          * IO engines only need this for option callbacks, and the address may
1098          * change in subprocesses.
1099          */
1100         if (td->eo)
1101                 *(struct thread_data **)td->eo = NULL;
1102
1103         if (td->io_ops->flags & FIO_DISKLESSIO) {
1104                 struct fio_file *f;
1105
1106                 for_each_file(td, f, i)
1107                         f->real_file_size = -1ULL;
1108         }
1109
1110         td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
1111
1112         td->ts.clat_percentiles = o->clat_percentiles;
1113         td->ts.percentile_precision = o->percentile_precision;
1114         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1115
1116         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1117                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1118                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1119                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1120                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1121         }
1122         td->ddir_seq_nr = o->ddir_seq_nr;
1123
1124         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1125                 prev_group_jobs = 0;
1126                 groupid++;
1127         }
1128
1129         td->groupid = groupid;
1130         prev_group_jobs++;
1131
1132         if (setup_random_seeds(td)) {
1133                 td_verror(td, errno, "init_random_state");
1134                 goto err;
1135         }
1136
1137         if (setup_rate(td))
1138                 goto err;
1139
1140         if (o->lat_log_file) {
1141                 struct log_params p = {
1142                         .td = td,
1143                         .avg_msec = o->log_avg_msec,
1144                         .log_type = IO_LOG_TYPE_LAT,
1145                         .log_offset = o->log_offset,
1146                         .log_gz = o->log_gz,
1147                         .log_gz_store = o->log_gz_store,
1148                 };
1149                 const char *suf;
1150
1151                 if (p.log_gz_store)
1152                         suf = "log.fz";
1153                 else
1154                         suf = "log";
1155
1156                 snprintf(logname, sizeof(logname), "%s_lat.%d.%s",
1157                                 o->lat_log_file, td->thread_number, suf);
1158                 setup_log(&td->lat_log, &p, logname);
1159                 snprintf(logname, sizeof(logname), "%s_slat.%d.%s",
1160                                 o->lat_log_file, td->thread_number, suf);
1161                 setup_log(&td->slat_log, &p, logname);
1162                 snprintf(logname, sizeof(logname), "%s_clat.%d.%s",
1163                                 o->lat_log_file, td->thread_number, suf);
1164                 setup_log(&td->clat_log, &p, logname);
1165         }
1166         if (o->bw_log_file) {
1167                 struct log_params p = {
1168                         .td = td,
1169                         .avg_msec = o->log_avg_msec,
1170                         .log_type = IO_LOG_TYPE_BW,
1171                         .log_offset = o->log_offset,
1172                         .log_gz = o->log_gz,
1173                         .log_gz_store = o->log_gz_store,
1174                 };
1175                 const char *suf;
1176
1177                 if (p.log_gz_store)
1178                         suf = "log.fz";
1179                 else
1180                         suf = "log";
1181
1182                 snprintf(logname, sizeof(logname), "%s_bw.%d.%s",
1183                                 o->bw_log_file, td->thread_number, suf);
1184                 setup_log(&td->bw_log, &p, logname);
1185         }
1186         if (o->iops_log_file) {
1187                 struct log_params p = {
1188                         .td = td,
1189                         .avg_msec = o->log_avg_msec,
1190                         .log_type = IO_LOG_TYPE_IOPS,
1191                         .log_offset = o->log_offset,
1192                         .log_gz = o->log_gz,
1193                         .log_gz_store = o->log_gz_store,
1194                 };
1195                 const char *suf;
1196
1197                 if (p.log_gz_store)
1198                         suf = "log.fz";
1199                 else
1200                         suf = "log";
1201
1202                 snprintf(logname, sizeof(logname), "%s_iops.%d.%s",
1203                                 o->iops_log_file, td->thread_number, suf);
1204                 setup_log(&td->iops_log, &p, logname);
1205         }
1206
1207         if (!o->name)
1208                 o->name = strdup(jobname);
1209
1210         if (output_format == FIO_OUTPUT_NORMAL) {
1211                 if (!job_add_num) {
1212                         if (is_backend && !recursed)
1213                                 fio_server_send_add_job(td);
1214
1215                         if (!(td->io_ops->flags & FIO_NOIO)) {
1216                                 char *c1, *c2, *c3, *c4;
1217                                 char *c5 = NULL, *c6 = NULL;
1218
1219                                 c1 = fio_uint_to_kmg(o->min_bs[DDIR_READ]);
1220                                 c2 = fio_uint_to_kmg(o->max_bs[DDIR_READ]);
1221                                 c3 = fio_uint_to_kmg(o->min_bs[DDIR_WRITE]);
1222                                 c4 = fio_uint_to_kmg(o->max_bs[DDIR_WRITE]);
1223
1224                                 if (!o->bs_is_seq_rand) {
1225                                         c5 = fio_uint_to_kmg(o->min_bs[DDIR_TRIM]);
1226                                         c6 = fio_uint_to_kmg(o->max_bs[DDIR_TRIM]);
1227                                 }
1228
1229                                 log_info("%s: (g=%d): rw=%s, ", td->o.name,
1230                                                         td->groupid,
1231                                                         ddir_str(o->td_ddir));
1232
1233                                 if (o->bs_is_seq_rand)
1234                                         log_info("bs(seq/rand)=%s-%s/%s-%s, ",
1235                                                         c1, c2, c3, c4);
1236                                 else
1237                                         log_info("bs=%s-%s/%s-%s/%s-%s, ",
1238                                                         c1, c2, c3, c4, c5, c6);
1239
1240                                 log_info("ioengine=%s, iodepth=%u\n",
1241                                                 td->io_ops->name, o->iodepth);
1242
1243                                 free(c1);
1244                                 free(c2);
1245                                 free(c3);
1246                                 free(c4);
1247                                 free(c5);
1248                                 free(c6);
1249                         }
1250                 } else if (job_add_num == 1)
1251                         log_info("...\n");
1252         }
1253
1254         /*
1255          * recurse add identical jobs, clear numjobs and stonewall options
1256          * as they don't apply to sub-jobs
1257          */
1258         numjobs = o->numjobs;
1259         while (--numjobs) {
1260                 struct thread_data *td_new = get_new_job(0, td, 1, jobname);
1261
1262                 if (!td_new)
1263                         goto err;
1264
1265                 td_new->o.numjobs = 1;
1266                 td_new->o.stonewall = 0;
1267                 td_new->o.new_group = 0;
1268                 td_new->subjob_number = numjobs;
1269
1270                 if (file_alloced) {
1271                         if (td_new->files) {
1272                                 struct fio_file *f;
1273                                 for_each_file(td_new, f, i) {
1274                                         if (f->file_name)
1275                                                 sfree(f->file_name);
1276                                         sfree(f);
1277                                 }
1278                                 free(td_new->files);
1279                                 td_new->files = NULL;
1280                         }
1281                         td_new->files_index = 0;
1282                         td_new->files_size = 0;
1283                         if (td_new->o.filename) {
1284                                 free(td_new->o.filename);
1285                                 td_new->o.filename = NULL;
1286                         }
1287                 }
1288
1289                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1290                         goto err;
1291         }
1292
1293         return 0;
1294 err:
1295         put_job(td);
1296         return -1;
1297 }
1298
1299 /*
1300  * Parse as if 'o' was a command line
1301  */
1302 void add_job_opts(const char **o, int client_type)
1303 {
1304         struct thread_data *td, *td_parent;
1305         int i, in_global = 1;
1306         char jobname[32];
1307
1308         i = 0;
1309         td_parent = td = NULL;
1310         while (o[i]) {
1311                 if (!strncmp(o[i], "name", 4)) {
1312                         in_global = 0;
1313                         if (td)
1314                                 add_job(td, jobname, 0, 0, client_type);
1315                         td = NULL;
1316                         sprintf(jobname, "%s", o[i] + 5);
1317                 }
1318                 if (in_global && !td_parent)
1319                         td_parent = get_new_job(1, &def_thread, 0, jobname);
1320                 else if (!in_global && !td) {
1321                         if (!td_parent)
1322                                 td_parent = &def_thread;
1323                         td = get_new_job(0, td_parent, 0, jobname);
1324                 }
1325                 if (in_global)
1326                         fio_options_parse(td_parent, (char **) &o[i], 1, 0);
1327                 else
1328                         fio_options_parse(td, (char **) &o[i], 1, 0);
1329                 i++;
1330         }
1331
1332         if (td)
1333                 add_job(td, jobname, 0, 0, client_type);
1334 }
1335
1336 static int skip_this_section(const char *name)
1337 {
1338         int i;
1339
1340         if (!nr_job_sections)
1341                 return 0;
1342         if (!strncmp(name, "global", 6))
1343                 return 0;
1344
1345         for (i = 0; i < nr_job_sections; i++)
1346                 if (!strcmp(job_sections[i], name))
1347                         return 0;
1348
1349         return 1;
1350 }
1351
1352 static int is_empty_or_comment(char *line)
1353 {
1354         unsigned int i;
1355
1356         for (i = 0; i < strlen(line); i++) {
1357                 if (line[i] == ';')
1358                         return 1;
1359                 if (line[i] == '#')
1360                         return 1;
1361                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1362                         return 0;
1363         }
1364
1365         return 1;
1366 }
1367
1368 /*
1369  * This is our [ini] type file parser.
1370  */
1371 int __parse_jobs_ini(struct thread_data *td,
1372                 char *file, int is_buf, int stonewall_flag, int type,
1373                 int nested, char *name, char ***popts, int *aopts, int *nopts)
1374 {
1375         unsigned int global = 0;
1376         char *string;
1377         FILE *f;
1378         char *p;
1379         int ret = 0, stonewall;
1380         int first_sect = 1;
1381         int skip_fgets = 0;
1382         int inside_skip = 0;
1383         char **opts;
1384         int i, alloc_opts, num_opts;
1385
1386         dprint(FD_PARSE, "Parsing ini file %s\n", file);
1387         assert(td || !nested);
1388
1389         if (is_buf)
1390                 f = NULL;
1391         else {
1392                 if (!strcmp(file, "-"))
1393                         f = stdin;
1394                 else
1395                         f = fopen(file, "r");
1396
1397                 if (!f) {
1398                         int __err = errno;
1399
1400                         log_err("fio: unable to open '%s' job file\n", file);
1401                         if (td)
1402                                 td_verror(td, __err, "job file open");
1403                         return 1;
1404                 }
1405         }
1406
1407         string = malloc(4096);
1408
1409         /*
1410          * it's really 256 + small bit, 280 should suffice
1411          */
1412         if (!nested) {
1413                 name = malloc(280);
1414                 memset(name, 0, 280);
1415         }
1416
1417         opts = NULL;
1418         if (nested && popts) {
1419                 opts = *popts;
1420                 alloc_opts = *aopts;
1421                 num_opts = *nopts;
1422         }
1423
1424         if (!opts) {
1425                 alloc_opts = 8;
1426                 opts = malloc(sizeof(char *) * alloc_opts);
1427                 num_opts = 0;
1428         }
1429
1430         stonewall = stonewall_flag;
1431         do {
1432                 /*
1433                  * if skip_fgets is set, we already have loaded a line we
1434                  * haven't handled.
1435                  */
1436                 if (!skip_fgets) {
1437                         if (is_buf)
1438                                 p = strsep(&file, "\n");
1439                         else
1440                                 p = fgets(string, 4096, f);
1441                         if (!p)
1442                                 break;
1443                 }
1444
1445                 skip_fgets = 0;
1446                 strip_blank_front(&p);
1447                 strip_blank_end(p);
1448
1449                 dprint(FD_PARSE, "%s\n", p);
1450                 if (is_empty_or_comment(p))
1451                         continue;
1452
1453                 if (!nested) {
1454                         if (sscanf(p, "[%255[^\n]]", name) != 1) {
1455                                 if (inside_skip)
1456                                         continue;
1457
1458                                 log_err("fio: option <%s> outside of "
1459                                         "[] job section\n", p);
1460                                 ret = 1;
1461                                 break;
1462                         }
1463
1464                         name[strlen(name) - 1] = '\0';
1465
1466                         if (skip_this_section(name)) {
1467                                 inside_skip = 1;
1468                                 continue;
1469                         } else
1470                                 inside_skip = 0;
1471
1472                         dprint(FD_PARSE, "Parsing section [%s]\n", name);
1473
1474                         global = !strncmp(name, "global", 6);
1475
1476                         if (dump_cmdline) {
1477                                 if (first_sect)
1478                                         log_info("fio ");
1479                                 if (!global)
1480                                         log_info("--name=%s ", name);
1481                                 first_sect = 0;
1482                         }
1483
1484                         td = get_new_job(global, &def_thread, 0, name);
1485                         if (!td) {
1486                                 ret = 1;
1487                                 break;
1488                         }
1489
1490                         /*
1491                          * Separate multiple job files by a stonewall
1492                          */
1493                         if (!global && stonewall) {
1494                                 td->o.stonewall = stonewall;
1495                                 stonewall = 0;
1496                         }
1497
1498                         num_opts = 0;
1499                         memset(opts, 0, alloc_opts * sizeof(char *));
1500                 }
1501                 else
1502                         skip_fgets = 1;
1503
1504                 while (1) {
1505                         if (!skip_fgets) {
1506                                 if (is_buf)
1507                                         p = strsep(&file, "\n");
1508                                 else
1509                                         p = fgets(string, 4096, f);
1510                                 if (!p)
1511                                         break;
1512                                 dprint(FD_PARSE, "%s", p);
1513                         }
1514                         else
1515                                 skip_fgets = 0;
1516
1517                         if (is_empty_or_comment(p))
1518                                 continue;
1519
1520                         strip_blank_front(&p);
1521
1522                         /*
1523                          * new section, break out and make sure we don't
1524                          * fgets() a new line at the top.
1525                          */
1526                         if (p[0] == '[') {
1527                                 if (nested) {
1528                                         log_err("No new sections in included files\n");
1529                                         return 1;
1530                                 }
1531
1532                                 skip_fgets = 1;
1533                                 break;
1534                         }
1535
1536                         strip_blank_end(p);
1537
1538                         if (!strncmp(p, "include", strlen("include"))) {
1539                                 char *filename = p + strlen("include") + 1;
1540
1541                                 if ((ret = __parse_jobs_ini(td, filename,
1542                                                 is_buf, stonewall_flag, type, 1,
1543                                                 name, &opts, &alloc_opts, &num_opts))) {
1544                                         log_err("Error %d while parsing include file %s\n",
1545                                                 ret, filename);
1546                                         break;
1547                                 }
1548                                 continue;
1549                         }
1550
1551                         if (num_opts == alloc_opts) {
1552                                 alloc_opts <<= 1;
1553                                 opts = realloc(opts,
1554                                                 alloc_opts * sizeof(char *));
1555                         }
1556
1557                         opts[num_opts] = strdup(p);
1558                         num_opts++;
1559                 }
1560
1561                 if (nested) {
1562                         *popts = opts;
1563                         *aopts = alloc_opts;
1564                         *nopts = num_opts;
1565                         goto out;
1566                 }
1567
1568                 ret = fio_options_parse(td, opts, num_opts, dump_cmdline);
1569                 if (!ret)
1570                         ret = add_job(td, name, 0, 0, type);
1571                 else {
1572                         log_err("fio: job %s dropped\n", name);
1573                         put_job(td);
1574                 }
1575
1576                 for (i = 0; i < num_opts; i++)
1577                         free(opts[i]);
1578                 num_opts = 0;
1579         } while (!ret);
1580
1581         if (dump_cmdline)
1582                 log_info("\n");
1583
1584         i = 0;
1585         while (i < nr_job_sections) {
1586                 free(job_sections[i]);
1587                 i++;
1588         }
1589
1590         free(opts);
1591 out:
1592         free(string);
1593         if (!nested)
1594                 free(name);
1595         if (!is_buf && f != stdin)
1596                 fclose(f);
1597         return ret;
1598 }
1599
1600 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
1601 {
1602         return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
1603                         0, NULL, NULL, NULL, NULL);
1604 }
1605
1606 static int fill_def_thread(void)
1607 {
1608         memset(&def_thread, 0, sizeof(def_thread));
1609
1610         fio_getaffinity(getpid(), &def_thread.o.cpumask);
1611         def_thread.o.error_dump = 1;
1612
1613         /*
1614          * fill default options
1615          */
1616         fio_fill_default_options(&def_thread);
1617         return 0;
1618 }
1619
1620 static void usage(const char *name)
1621 {
1622         printf("%s\n", fio_version_string);
1623         printf("%s [options] [job options] <job file(s)>\n", name);
1624         printf("  --debug=options\tEnable debug logging. May be one/more of:\n"
1625                 "\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
1626                 "\t\t\tdiskutil,job,mutex,profile,time,net,rate,compress\n");
1627         printf("  --parse-only\t\tParse options only, don't start any IO\n");
1628         printf("  --output\t\tWrite output to file\n");
1629         printf("  --runtime\t\tRuntime in seconds\n");
1630         printf("  --bandwidth-log\tGenerate per-job bandwidth logs\n");
1631         printf("  --minimal\t\tMinimal (terse) output\n");
1632         printf("  --output-format=x\tOutput format (terse,json,normal)\n");
1633         printf("  --terse-version=x\tSet terse version output format to 'x'\n");
1634         printf("  --version\t\tPrint version info and exit\n");
1635         printf("  --help\t\tPrint this page\n");
1636         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
1637         printf("  --crctest\t\tTest speed of checksum functions\n");
1638         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
1639                 " them\n");
1640         printf("  --enghelp=engine\tPrint ioengine help, or list"
1641                 " available ioengines\n");
1642         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
1643                 " cmd\n");
1644         printf("  --showcmd\t\tTurn a job file into command line options\n");
1645         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
1646         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
1647         printf("  --eta-newline=time\tForce a new line for every 'time'");
1648         printf(" period passed\n");
1649         printf("  --status-interval=t\tForce full status dump every");
1650         printf(" 't' period passed\n");
1651         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
1652                 " writes\n");
1653         printf("  --section=name\tOnly run specified section in job file\n");
1654         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
1655                 " (def 1024)\n");
1656         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
1657         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1658         printf("  --server=args\t\tStart a backend fio server\n");
1659         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
1660         printf("  --client=hostname\tTalk to remote backend fio server at hostname\n");
1661         printf("  --remote-config=file\tTell fio server to load this local job file\n");
1662         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
1663                 "\t\t\t(option=system,percpu) or run unit work\n"
1664                 "\t\t\tcalibration only (option=calibrate)\n");
1665 #ifdef CONFIG_ZLIB
1666         printf("  --inflate-log=log\tInflate and output compressed log\n");
1667 #endif
1668         printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1669         printf("\n                   Jens Axboe <jaxboe@fusionio.com>");
1670         printf("\n                   Jens Axboe <axboe@fb.com>\n");
1671 }
1672
1673 #ifdef FIO_INC_DEBUG
1674 struct debug_level debug_levels[] = {
1675         { .name = "process",
1676           .help = "Process creation/exit logging",
1677           .shift = FD_PROCESS,
1678         },
1679         { .name = "file",
1680           .help = "File related action logging",
1681           .shift = FD_FILE,
1682         },
1683         { .name = "io",
1684           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
1685           .shift = FD_IO,
1686         },
1687         { .name = "mem",
1688           .help = "Memory allocation/freeing logging",
1689           .shift = FD_MEM,
1690         },
1691         { .name = "blktrace",
1692           .help = "blktrace action logging",
1693           .shift = FD_BLKTRACE,
1694         },
1695         { .name = "verify",
1696           .help = "IO verification action logging",
1697           .shift = FD_VERIFY,
1698         },
1699         { .name = "random",
1700           .help = "Random generation logging",
1701           .shift = FD_RANDOM,
1702         },
1703         { .name = "parse",
1704           .help = "Parser logging",
1705           .shift = FD_PARSE,
1706         },
1707         { .name = "diskutil",
1708           .help = "Disk utility logging actions",
1709           .shift = FD_DISKUTIL,
1710         },
1711         { .name = "job",
1712           .help = "Logging related to creating/destroying jobs",
1713           .shift = FD_JOB,
1714         },
1715         { .name = "mutex",
1716           .help = "Mutex logging",
1717           .shift = FD_MUTEX
1718         },
1719         { .name = "profile",
1720           .help = "Logging related to profiles",
1721           .shift = FD_PROFILE,
1722         },
1723         { .name = "time",
1724           .help = "Logging related to time keeping functions",
1725           .shift = FD_TIME,
1726         },
1727         { .name = "net",
1728           .help = "Network logging",
1729           .shift = FD_NET,
1730         },
1731         { .name = "rate",
1732           .help = "Rate logging",
1733           .shift = FD_RATE,
1734         },
1735         { .name = "compress",
1736           .help = "Log compression logging",
1737           .shift = FD_COMPRESS,
1738         },
1739         { .name = NULL, },
1740 };
1741
1742 static int set_debug(const char *string)
1743 {
1744         struct debug_level *dl;
1745         char *p = (char *) string;
1746         char *opt;
1747         int i;
1748
1749         if (!strcmp(string, "?") || !strcmp(string, "help")) {
1750                 log_info("fio: dumping debug options:");
1751                 for (i = 0; debug_levels[i].name; i++) {
1752                         dl = &debug_levels[i];
1753                         log_info("%s,", dl->name);
1754                 }
1755                 log_info("all\n");
1756                 return 1;
1757         }
1758
1759         while ((opt = strsep(&p, ",")) != NULL) {
1760                 int found = 0;
1761
1762                 if (!strncmp(opt, "all", 3)) {
1763                         log_info("fio: set all debug options\n");
1764                         fio_debug = ~0UL;
1765                         continue;
1766                 }
1767
1768                 for (i = 0; debug_levels[i].name; i++) {
1769                         dl = &debug_levels[i];
1770                         found = !strncmp(opt, dl->name, strlen(dl->name));
1771                         if (!found)
1772                                 continue;
1773
1774                         if (dl->shift == FD_JOB) {
1775                                 opt = strchr(opt, ':');
1776                                 if (!opt) {
1777                                         log_err("fio: missing job number\n");
1778                                         break;
1779                                 }
1780                                 opt++;
1781                                 fio_debug_jobno = atoi(opt);
1782                                 log_info("fio: set debug jobno %d\n",
1783                                                         fio_debug_jobno);
1784                         } else {
1785                                 log_info("fio: set debug option %s\n", opt);
1786                                 fio_debug |= (1UL << dl->shift);
1787                         }
1788                         break;
1789                 }
1790
1791                 if (!found)
1792                         log_err("fio: debug mask %s not found\n", opt);
1793         }
1794         return 0;
1795 }
1796 #else
1797 static int set_debug(const char *string)
1798 {
1799         log_err("fio: debug tracing not included in build\n");
1800         return 1;
1801 }
1802 #endif
1803
1804 static void fio_options_fill_optstring(void)
1805 {
1806         char *ostr = cmd_optstr;
1807         int i, c;
1808
1809         c = i = 0;
1810         while (l_opts[i].name) {
1811                 ostr[c++] = l_opts[i].val;
1812                 if (l_opts[i].has_arg == required_argument)
1813                         ostr[c++] = ':';
1814                 else if (l_opts[i].has_arg == optional_argument) {
1815                         ostr[c++] = ':';
1816                         ostr[c++] = ':';
1817                 }
1818                 i++;
1819         }
1820         ostr[c] = '\0';
1821 }
1822
1823 static int client_flag_set(char c)
1824 {
1825         int i;
1826
1827         i = 0;
1828         while (l_opts[i].name) {
1829                 int val = l_opts[i].val;
1830
1831                 if (c == (val & 0xff))
1832                         return (val & FIO_CLIENT_FLAG);
1833
1834                 i++;
1835         }
1836
1837         return 0;
1838 }
1839
1840 static void parse_cmd_client(void *client, char *opt)
1841 {
1842         fio_client_add_cmd_option(client, opt);
1843 }
1844
1845 int parse_cmd_line(int argc, char *argv[], int client_type)
1846 {
1847         struct thread_data *td = NULL;
1848         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1849         char *ostr = cmd_optstr;
1850         void *pid_file = NULL;
1851         void *cur_client = NULL;
1852         int backend = 0;
1853
1854         /*
1855          * Reset optind handling, since we may call this multiple times
1856          * for the backend.
1857          */
1858         optind = 1;
1859
1860         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1861                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1862                         parse_cmd_client(cur_client, argv[optind - 1]);
1863                         c &= ~FIO_CLIENT_FLAG;
1864                 }
1865
1866                 switch (c) {
1867                 case 'a':
1868                         smalloc_pool_size = atoi(optarg);
1869                         break;
1870                 case 't':
1871                         if (check_str_time(optarg, &def_timeout, 1)) {
1872                                 log_err("fio: failed parsing time %s\n", optarg);
1873                                 do_exit++;
1874                                 exit_val = 1;
1875                         }
1876                         break;
1877                 case 'l':
1878                         log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
1879                         do_exit++;
1880                         exit_val = 1;
1881                         break;
1882                 case 'b':
1883                         write_bw_log = 1;
1884                         break;
1885                 case 'o':
1886                         if (f_out && f_out != stdout)
1887                                 fclose(f_out);
1888
1889                         f_out = fopen(optarg, "w+");
1890                         if (!f_out) {
1891                                 perror("fopen output");
1892                                 exit(1);
1893                         }
1894                         f_err = f_out;
1895                         break;
1896                 case 'm':
1897                         output_format = FIO_OUTPUT_TERSE;
1898                         break;
1899                 case 'F':
1900                         if (!optarg) {
1901                                 log_err("fio: missing --output-format argument\n");
1902                                 exit_val = 1;
1903                                 do_exit++;
1904                                 break;
1905                         }
1906                         if (!strcmp(optarg, "minimal") ||
1907                             !strcmp(optarg, "terse") ||
1908                             !strcmp(optarg, "csv"))
1909                                 output_format = FIO_OUTPUT_TERSE;
1910                         else if (!strcmp(optarg, "json"))
1911                                 output_format = FIO_OUTPUT_JSON;
1912                         else
1913                                 output_format = FIO_OUTPUT_NORMAL;
1914                         break;
1915                 case 'f':
1916                         append_terse_output = 1;
1917                         break;
1918                 case 'h':
1919                         did_arg = 1;
1920                         if (!cur_client) {
1921                                 usage(argv[0]);
1922                                 do_exit++;
1923                         }
1924                         break;
1925                 case 'c':
1926                         did_arg = 1;
1927                         if (!cur_client) {
1928                                 fio_show_option_help(optarg);
1929                                 do_exit++;
1930                         }
1931                         break;
1932                 case 'i':
1933                         did_arg = 1;
1934                         if (!cur_client) {
1935                                 fio_show_ioengine_help(optarg);
1936                                 do_exit++;
1937                         }
1938                         break;
1939                 case 's':
1940                         did_arg = 1;
1941                         dump_cmdline = 1;
1942                         break;
1943                 case 'r':
1944                         read_only = 1;
1945                         break;
1946                 case 'v':
1947                         did_arg = 1;
1948                         if (!cur_client) {
1949                                 log_info("%s\n", fio_version_string);
1950                                 do_exit++;
1951                         }
1952                         break;
1953                 case 'V':
1954                         terse_version = atoi(optarg);
1955                         if (!(terse_version == 2 || terse_version == 3 ||
1956                              terse_version == 4)) {
1957                                 log_err("fio: bad terse version format\n");
1958                                 exit_val = 1;
1959                                 do_exit++;
1960                         }
1961                         break;
1962                 case 'e':
1963                         if (!strcmp("always", optarg))
1964                                 eta_print = FIO_ETA_ALWAYS;
1965                         else if (!strcmp("never", optarg))
1966                                 eta_print = FIO_ETA_NEVER;
1967                         break;
1968                 case 'E': {
1969                         long long t = 0;
1970
1971                         if (check_str_time(optarg, &t, 1)) {
1972                                 log_err("fio: failed parsing eta time %s\n", optarg);
1973                                 exit_val = 1;
1974                                 do_exit++;
1975                         }
1976                         eta_new_line = t / 1000;
1977                         break;
1978                         }
1979                 case 'd':
1980                         if (set_debug(optarg))
1981                                 do_exit++;
1982                         break;
1983                 case 'P':
1984                         did_arg = 1;
1985                         parse_only = 1;
1986                         break;
1987                 case 'x': {
1988                         size_t new_size;
1989
1990                         if (!strcmp(optarg, "global")) {
1991                                 log_err("fio: can't use global as only "
1992                                         "section\n");
1993                                 do_exit++;
1994                                 exit_val = 1;
1995                                 break;
1996                         }
1997                         new_size = (nr_job_sections + 1) * sizeof(char *);
1998                         job_sections = realloc(job_sections, new_size);
1999                         job_sections[nr_job_sections] = strdup(optarg);
2000                         nr_job_sections++;
2001                         break;
2002                         }
2003 #ifdef CONFIG_ZLIB
2004                 case 'X':
2005                         exit_val = iolog_file_inflate(optarg);
2006                         did_arg++;
2007                         do_exit++;
2008                         break;
2009 #endif
2010                 case 'p':
2011                         did_arg = 1;
2012                         if (exec_profile)
2013                                 free(exec_profile);
2014                         exec_profile = strdup(optarg);
2015                         break;
2016                 case FIO_GETOPT_JOB: {
2017                         const char *opt = l_opts[lidx].name;
2018                         char *val = optarg;
2019
2020                         if (!strncmp(opt, "name", 4) && td) {
2021                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2022                                 if (ret)
2023                                         goto out_free;
2024                                 td = NULL;
2025                                 did_arg = 1;
2026                         }
2027                         if (!td) {
2028                                 int is_section = !strncmp(opt, "name", 4);
2029                                 int global = 0;
2030
2031                                 if (!is_section || !strncmp(val, "global", 6))
2032                                         global = 1;
2033
2034                                 if (is_section && skip_this_section(val))
2035                                         continue;
2036
2037                                 td = get_new_job(global, &def_thread, 1, NULL);
2038                                 if (!td || ioengine_load(td)) {
2039                                         if (td) {
2040                                                 put_job(td);
2041                                                 td = NULL;
2042                                         }
2043                                         do_exit++;
2044                                         break;
2045                                 }
2046                                 fio_options_set_ioengine_opts(l_opts, td);
2047                         }
2048
2049                         if ((!val || !strlen(val)) &&
2050                             l_opts[lidx].has_arg == required_argument) {
2051                                 log_err("fio: option %s requires an argument\n", opt);
2052                                 ret = 1;
2053                         } else
2054                                 ret = fio_cmd_option_parse(td, opt, val);
2055
2056                         if (ret) {
2057                                 if (td) {
2058                                         put_job(td);
2059                                         td = NULL;
2060                                 }
2061                                 do_exit++;
2062                         }
2063
2064                         if (!ret && !strcmp(opt, "ioengine")) {
2065                                 free_ioengine(td);
2066                                 if (ioengine_load(td)) {
2067                                         put_job(td);
2068                                         td = NULL;
2069                                         do_exit++;
2070                                         break;
2071                                 }
2072                                 fio_options_set_ioengine_opts(l_opts, td);
2073                         }
2074                         break;
2075                 }
2076                 case FIO_GETOPT_IOENGINE: {
2077                         const char *opt = l_opts[lidx].name;
2078                         char *val = optarg;
2079
2080                         if (!td)
2081                                 break;
2082
2083                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
2084                         break;
2085                 }
2086                 case 'w':
2087                         warnings_fatal = 1;
2088                         break;
2089                 case 'j':
2090                         max_jobs = atoi(optarg);
2091                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2092                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
2093                                 do_exit++;
2094                                 exit_val = 1;
2095                         }
2096                         break;
2097                 case 'S':
2098                         did_arg = 1;
2099 #ifndef CONFIG_NO_SHM
2100                         if (nr_clients) {
2101                                 log_err("fio: can't be both client and server\n");
2102                                 do_exit++;
2103                                 exit_val = 1;
2104                                 break;
2105                         }
2106                         if (optarg)
2107                                 fio_server_set_arg(optarg);
2108                         is_backend = 1;
2109                         backend = 1;
2110 #else
2111                         log_err("fio: client/server requires SHM support\n");
2112                         do_exit++;
2113                         exit_val = 1;
2114 #endif
2115                         break;
2116                 case 'D':
2117                         if (pid_file)
2118                                 free(pid_file);
2119                         pid_file = strdup(optarg);
2120                         break;
2121                 case 'I':
2122                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
2123                                 /* exit on error and calibration only */
2124                                 did_arg = 1;
2125                                 do_exit++;
2126                                 if (ret == -1)
2127                                         exit_val = 1;
2128                         }
2129                         break;
2130                 case 'C':
2131                         did_arg = 1;
2132                         if (is_backend) {
2133                                 log_err("fio: can't be both client and server\n");
2134                                 do_exit++;
2135                                 exit_val = 1;
2136                                 break;
2137                         }
2138                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2139                                 log_err("fio: failed adding client %s\n", optarg);
2140                                 do_exit++;
2141                                 exit_val = 1;
2142                                 break;
2143                         }
2144                         /*
2145                          * If the next argument exists and isn't an option,
2146                          * assume it's a job file for this client only.
2147                          */
2148                         while (optind < argc) {
2149                                 if (!strncmp(argv[optind], "--", 2) ||
2150                                     !strncmp(argv[optind], "-", 1))
2151                                         break;
2152
2153                                 if (fio_client_add_ini_file(cur_client, argv[optind], 0))
2154                                         break;
2155                                 optind++;
2156                         }
2157                         break;
2158                 case 'R':
2159                         did_arg = 1;
2160                         if (fio_client_add_ini_file(cur_client, optarg, 1)) {
2161                                 do_exit++;
2162                                 exit_val = 1;
2163                         }
2164                         break;
2165                 case 'T':
2166                         did_arg = 1;
2167                         do_exit++;
2168                         exit_val = fio_monotonic_clocktest();
2169                         break;
2170                 case 'G':
2171                         did_arg = 1;
2172                         do_exit++;
2173                         exit_val = fio_crctest(optarg);
2174                         break;
2175                 case 'L': {
2176                         long long val;
2177
2178                         if (check_str_time(optarg, &val, 1)) {
2179                                 log_err("fio: failed parsing time %s\n", optarg);
2180                                 do_exit++;
2181                                 exit_val = 1;
2182                                 break;
2183                         }
2184                         status_interval = val / 1000;
2185                         break;
2186                         }
2187                 case '?':
2188                         log_err("%s: unrecognized option '%s'\n", argv[0],
2189                                                         argv[optind - 1]);
2190                 default:
2191                         do_exit++;
2192                         exit_val = 1;
2193                         break;
2194                 }
2195                 if (do_exit)
2196                         break;
2197         }
2198
2199         if (do_exit && !(is_backend || nr_clients))
2200                 exit(exit_val);
2201
2202         if (nr_clients && fio_clients_connect())
2203                 exit(1);
2204
2205         if (is_backend && backend)
2206                 return fio_start_server(pid_file);
2207         else if (pid_file)
2208                 free(pid_file);
2209
2210         if (td) {
2211                 if (!ret) {
2212                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2213                         if (ret)
2214                                 did_arg = 1;
2215                 }
2216         }
2217
2218         while (!ret && optind < argc) {
2219                 ini_idx++;
2220                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2221                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2222                 optind++;
2223         }
2224
2225 out_free:
2226         if (pid_file)
2227                 free(pid_file);
2228
2229         return ini_idx;
2230 }
2231
2232 int fio_init_options(void)
2233 {
2234         f_out = stdout;
2235         f_err = stderr;
2236
2237         fio_options_fill_optstring();
2238         fio_options_dup_and_init(l_opts);
2239
2240         atexit(free_shm);
2241
2242         if (fill_def_thread())
2243                 return 1;
2244
2245         return 0;
2246 }
2247
2248 extern int fio_check_options(struct thread_options *);
2249
2250 int parse_options(int argc, char *argv[])
2251 {
2252         const int type = FIO_CLIENT_TYPE_CLI;
2253         int job_files, i;
2254
2255         if (fio_init_options())
2256                 return 1;
2257         if (fio_test_cconv(&def_thread.o))
2258                 log_err("fio: failed internal cconv test\n");
2259
2260         job_files = parse_cmd_line(argc, argv, type);
2261
2262         if (job_files > 0) {
2263                 for (i = 0; i < job_files; i++) {
2264                         if (i && fill_def_thread())
2265                                 return 1;
2266                         if (nr_clients) {
2267                                 if (fio_clients_send_ini(ini_file[i]))
2268                                         return 1;
2269                                 free(ini_file[i]);
2270                         } else if (!is_backend) {
2271                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2272                                         return 1;
2273                                 free(ini_file[i]);
2274                         }
2275                 }
2276         } else if (nr_clients) {
2277                 if (fill_def_thread())
2278                         return 1;
2279                 if (fio_clients_send_ini(NULL))
2280                         return 1;
2281         }
2282
2283         free(ini_file);
2284         fio_options_free(&def_thread);
2285         filesetup_mem_free();
2286
2287         if (!thread_number) {
2288                 if (parse_dryrun())
2289                         return 0;
2290                 if (exec_profile)
2291                         return 0;
2292                 if (is_backend || nr_clients)
2293                         return 0;
2294                 if (did_arg)
2295                         return 0;
2296
2297                 log_err("No jobs(s) defined\n\n");
2298
2299                 if (!did_arg) {
2300                         usage(argv[0]);
2301                         return 1;
2302                 }
2303
2304                 return 0;
2305         }
2306
2307         if (def_thread.o.gtod_offload) {
2308                 fio_gtod_init();
2309                 fio_gtod_offload = 1;
2310                 fio_gtod_cpu = def_thread.o.gtod_cpu;
2311         }
2312
2313         if (output_format == FIO_OUTPUT_NORMAL)
2314                 log_info("%s\n", fio_version_string);
2315
2316         return 0;
2317 }
2318
2319 void options_default_fill(struct thread_options *o)
2320 {
2321         memcpy(o, &def_thread.o, sizeof(*o));
2322 }