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 char *trigger_file = NULL;
  68 long long trigger_timeout = 0;
  69 char *trigger_cmd = NULL;
  70 char *trigger_remote_cmd = NULL;
  71
  72 static int prev_group_jobs;
  73
  74 unsigned long fio_debug = 0;
  75 unsigned int fio_debug_jobno = -1;
  76 unsigned int *fio_debug_jobp = NULL;
  77
  78 static char cmd_optstr[256];
  79 static int did_arg;
  80
  81 #define FIO_CLIENT_FLAG         (1 << 16)
  82
  83 /*
  84  * Command line options. These will contain the above, plus a few
  85  * extra that only pertain to fio itself and not jobs.
  86  */
  87 static struct option l_opts[FIO_NR_OPTIONS] = {
  88         {
  89                 .name           = (char *) "output",
  90                 .has_arg        = required_argument,
  91                 .val            = 'o' | FIO_CLIENT_FLAG,
  92         },
  93         {
  94                 .name           = (char *) "timeout",
  95                 .has_arg        = required_argument,
  96                 .val            = 't' | FIO_CLIENT_FLAG,
  97         },
  98         {
  99                 .name           = (char *) "latency-log",
 100                 .has_arg        = required_argument,
 101                 .val            = 'l' | FIO_CLIENT_FLAG,
 102         },
 103         {
 104                 .name           = (char *) "bandwidth-log",
 105                 .has_arg        = required_argument,
 106                 .val            = 'b' | FIO_CLIENT_FLAG,
 107         },
 108         {
 109                 .name           = (char *) "minimal",
 110                 .has_arg        = no_argument,
 111                 .val            = 'm' | FIO_CLIENT_FLAG,
 112         },
 113         {
 114                 .name           = (char *) "output-format",
 115                 .has_arg        = optional_argument,
 116                 .val            = 'F' | FIO_CLIENT_FLAG,
 117         },
 118         {
 119                 .name           = (char *) "append-terse",
 120                 .has_arg        = optional_argument,
 121                 .val            = 'f',
 122         },
 123         {
 124                 .name           = (char *) "version",
 125                 .has_arg        = no_argument,
 126                 .val            = 'v' | FIO_CLIENT_FLAG,
 127         },
 128         {
 129                 .name           = (char *) "help",
 130                 .has_arg        = no_argument,
 131                 .val            = 'h' | FIO_CLIENT_FLAG,
 132         },
 133         {
 134                 .name           = (char *) "cmdhelp",
 135                 .has_arg        = optional_argument,
 136                 .val            = 'c' | FIO_CLIENT_FLAG,
 137         },
 138         {
 139                 .name           = (char *) "enghelp",
 140                 .has_arg        = optional_argument,
 141                 .val            = 'i' | FIO_CLIENT_FLAG,
 142         },
 143         {
 144                 .name           = (char *) "showcmd",
 145                 .has_arg        = no_argument,
 146                 .val            = 's' | FIO_CLIENT_FLAG,
 147         },
 148         {
 149                 .name           = (char *) "readonly",
 150                 .has_arg        = no_argument,
 151                 .val            = 'r' | FIO_CLIENT_FLAG,
 152         },
 153         {
 154                 .name           = (char *) "eta",
 155                 .has_arg        = required_argument,
 156                 .val            = 'e' | FIO_CLIENT_FLAG,
 157         },
 158         {
 159                 .name           = (char *) "eta-newline",
 160                 .has_arg        = required_argument,
 161                 .val            = 'E' | FIO_CLIENT_FLAG,
 162         },
 163         {
 164                 .name           = (char *) "debug",
 165                 .has_arg        = required_argument,
 166                 .val            = 'd' | FIO_CLIENT_FLAG,
 167         },
 168         {
 169                 .name           = (char *) "parse-only",
 170                 .has_arg        = no_argument,
 171                 .val            = 'P' | FIO_CLIENT_FLAG,
 172         },
 173         {
 174                 .name           = (char *) "section",
 175                 .has_arg        = required_argument,
 176                 .val            = 'x' | FIO_CLIENT_FLAG,
 177         },
 178 #ifdef CONFIG_ZLIB
 179         {
 180                 .name           = (char *) "inflate-log",
 181                 .has_arg        = required_argument,
 182                 .val            = 'X' | FIO_CLIENT_FLAG,
 183         },
 184 #endif
 185         {
 186                 .name           = (char *) "alloc-size",
 187                 .has_arg        = required_argument,
 188                 .val            = 'a' | FIO_CLIENT_FLAG,
 189         },
 190         {
 191                 .name           = (char *) "profile",
 192                 .has_arg        = required_argument,
 193                 .val            = 'p' | FIO_CLIENT_FLAG,
 194         },
 195         {
 196                 .name           = (char *) "warnings-fatal",
 197                 .has_arg        = no_argument,
 198                 .val            = 'w' | FIO_CLIENT_FLAG,
 199         },
 200         {
 201                 .name           = (char *) "max-jobs",
 202                 .has_arg        = required_argument,
 203                 .val            = 'j' | FIO_CLIENT_FLAG,
 204         },
 205         {
 206                 .name           = (char *) "terse-version",
 207                 .has_arg        = required_argument,
 208                 .val            = 'V' | FIO_CLIENT_FLAG,
 209         },
 210         {
 211                 .name           = (char *) "server",
 212                 .has_arg        = optional_argument,
 213                 .val            = 'S',
 214         },
 215         {       .name           = (char *) "daemonize",
 216                 .has_arg        = required_argument,
 217                 .val            = 'D',
 218         },
 219         {
 220                 .name           = (char *) "client",
 221                 .has_arg        = required_argument,
 222                 .val            = 'C',
 223         },
 224         {
 225                 .name           = (char *) "remote-config",
 226                 .has_arg        = required_argument,
 227                 .val            = 'R',
 228         },
 229         {
 230                 .name           = (char *) "cpuclock-test",
 231                 .has_arg        = no_argument,
 232                 .val            = 'T',
 233         },
 234         {
 235                 .name           = (char *) "crctest",
 236                 .has_arg        = optional_argument,
 237                 .val            = 'G',
 238         },
 239         {
 240                 .name           = (char *) "idle-prof",
 241                 .has_arg        = required_argument,
 242                 .val            = 'I',
 243         },
 244         {
 245                 .name           = (char *) "status-interval",
 246                 .has_arg        = required_argument,
 247                 .val            = 'L',
 248         },
 249         {
 250                 .name           = (char *) "trigger-file",
 251                 .has_arg        = required_argument,
 252                 .val            = 'W',
 253         },
 254         {
 255                 .name           = (char *) "trigger-timeout",
 256                 .has_arg        = required_argument,
 257                 .val            = 'B',
 258         },
 259         {
 260                 .name           = (char *) "trigger",
 261                 .has_arg        = required_argument,
 262                 .val            = 'H',
 263         },
 264         {
 265                 .name           = (char *) "trigger-remote",
 266                 .has_arg        = required_argument,
 267                 .val            = 'J',
 268         },
 269         {
 270                 .name           = NULL,
 271         },
 272 };
 273
 274 void free_threads_shm(void)
 275 {
 276         if (threads) {
 277                 void *tp = threads;
 278 #ifndef CONFIG_NO_SHM
 279                 struct shmid_ds sbuf;
 280
 281                 threads = NULL;
 282                 shmdt(tp);
 283                 shmctl(shm_id, IPC_RMID, &sbuf);
 284                 shm_id = -1;
 285 #else
 286                 threads = NULL;
 287                 free(tp);
 288 #endif
 289         }
 290 }
 291
 292 static void free_shm(void)
 293 {
 294         if (threads) {
 295                 file_hash_exit();
 296                 flow_exit();
 297                 fio_debug_jobp = NULL;
 298                 free_threads_shm();
 299         }
 300
 301         free(trigger_file);
 302         free(trigger_cmd);
 303         free(trigger_remote_cmd);
 304         trigger_file = trigger_cmd = trigger_remote_cmd = NULL;
 305
 306         options_free(fio_options, &def_thread);
 307         fio_filelock_exit();
 308         scleanup();
 309 }
 310
 311 /*
 312  * The thread area is shared between the main process and the job
 313  * threads/processes. So setup a shared memory segment that will hold
 314  * all the job info. We use the end of the region for keeping track of
 315  * open files across jobs, for file sharing.
 316  */
 317 static int setup_thread_area(void)
 318 {
 319         void *hash;
 320
 321         if (threads)
 322                 return 0;
 323
 324         /*
 325          * 1024 is too much on some machines, scale max_jobs if
 326          * we get a failure that looks like too large a shm segment
 327          */
 328         do {
 329                 size_t size = max_jobs * sizeof(struct thread_data);
 330
 331                 size += file_hash_size;
 332                 size += sizeof(unsigned int);
 333
 334 #ifndef CONFIG_NO_SHM
 335                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 336                 if (shm_id != -1)
 337                         break;
 338                 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
 339                         perror("shmget");
 340                         break;
 341                 }
 342 #else
 343                 threads = malloc(size);
 344                 if (threads)
 345                         break;
 346 #endif
 347
 348                 max_jobs >>= 1;
 349         } while (max_jobs);
 350
 351 #ifndef CONFIG_NO_SHM
 352         if (shm_id == -1)
 353                 return 1;
 354
 355         threads = shmat(shm_id, NULL, 0);
 356         if (threads == (void *) -1) {
 357                 perror("shmat");
 358                 return 1;
 359         }
 360 #endif
 361
 362         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 363         hash = (void *) threads + max_jobs * sizeof(struct thread_data);
 364         fio_debug_jobp = (void *) hash + file_hash_size;
 365         *fio_debug_jobp = -1;
 366         file_hash_init(hash);
 367
 368         flow_init();
 369
 370         return 0;
 371 }
 372
 373 static void set_cmd_options(struct thread_data *td)
 374 {
 375         struct thread_options *o = &td->o;
 376
 377         if (!o->timeout)
 378                 o->timeout = def_timeout;
 379 }
 380
 381 /*
 382  * Return a free job structure.
 383  */
 384 static struct thread_data *get_new_job(int global, struct thread_data *parent,
 385                                        int preserve_eo, const char *jobname)
 386 {
 387         struct thread_data *td;
 388
 389         if (global) {
 390                 set_cmd_options(&def_thread);
 391                 return &def_thread;
 392         }
 393         if (setup_thread_area()) {
 394                 log_err("error: failed to setup shm segment\n");
 395                 return NULL;
 396         }
 397         if (thread_number >= max_jobs) {
 398                 log_err("error: maximum number of jobs (%d) reached.\n",
 399                                 max_jobs);
 400                 return NULL;
 401         }
 402
 403         td = &threads[thread_number++];
 404         *td = *parent;
 405
 406         td->io_ops = NULL;
 407         if (!preserve_eo)
 408                 td->eo = NULL;
 409
 410         td->o.uid = td->o.gid = -1U;
 411
 412         dup_files(td, parent);
 413         fio_options_mem_dupe(td);
 414
 415         profile_add_hooks(td);
 416
 417         td->thread_number = thread_number;
 418         td->subjob_number = 0;
 419
 420         if (jobname)
 421                 td->o.name = strdup(jobname);
 422
 423         if (!parent->o.group_reporting)
 424                 stat_number++;
 425
 426         set_cmd_options(td);
 427         return td;
 428 }
 429
 430 static void put_job(struct thread_data *td)
 431 {
 432         if (td == &def_thread)
 433                 return;
 434
 435         profile_td_exit(td);
 436         flow_exit_job(td);
 437
 438         if (td->error)
 439                 log_info("fio: %s\n", td->verror);
 440
 441         fio_options_free(td);
 442         if (td->io_ops)
 443                 free_ioengine(td);
 444
 445         if (td->o.name)
 446                 free(td->o.name);
 447
 448         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 449         thread_number--;
 450 }
 451
 452 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 453 {
 454         unsigned int bs = td->o.min_bs[ddir];
 455
 456         assert(ddir_rw(ddir));
 457
 458         if (td->o.rate[ddir])
 459                 td->rate_bps[ddir] = td->o.rate[ddir];
 460         else
 461                 td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs;
 462
 463         if (!td->rate_bps[ddir]) {
 464                 log_err("rate lower than supported\n");
 465                 return -1;
 466         }
 467
 468         td->rate_pending_usleep[ddir] = 0;
 469         return 0;
 470 }
 471
 472 static int setup_rate(struct thread_data *td)
 473 {
 474         int ret = 0;
 475
 476         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
 477                 ret = __setup_rate(td, DDIR_READ);
 478         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
 479                 ret |= __setup_rate(td, DDIR_WRITE);
 480         if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
 481                 ret |= __setup_rate(td, DDIR_TRIM);
 482
 483         return ret;
 484 }
 485
 486 static int fixed_block_size(struct thread_options *o)
 487 {
 488         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 489                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 490                 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
 491                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
 492                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
 493 }
 494
 495
 496 static unsigned long long get_rand_start_delay(struct thread_data *td)
 497 {
 498         unsigned long long delayrange;
 499         unsigned long r;
 500
 501         delayrange = td->o.start_delay_high - td->o.start_delay;
 502
 503         r = __rand(&td->delay_state);
 504         delayrange = (unsigned long long) ((double) delayrange * (r / (FRAND_MAX + 1.0)));
 505
 506         delayrange += td->o.start_delay;
 507         return delayrange;
 508 }
 509
 510 /*
 511  * Lazy way of fixing up options that depend on each other. We could also
 512  * define option callback handlers, but this is easier.
 513  */
 514 static int fixup_options(struct thread_data *td)
 515 {
 516         struct thread_options *o = &td->o;
 517         int ret = 0;
 518
 519 #ifndef FIO_HAVE_PSHARED_MUTEX
 520         if (!o->use_thread) {
 521                 log_info("fio: this platform does not support process shared"
 522                          " mutexes, forcing use of threads. Use the 'thread'"
 523                          " option to get rid of this warning.\n");
 524                 o->use_thread = 1;
 525                 ret = warnings_fatal;
 526         }
 527 #endif
 528
 529         if (o->write_iolog_file && o->read_iolog_file) {
 530                 log_err("fio: read iolog overrides write_iolog\n");
 531                 free(o->write_iolog_file);
 532                 o->write_iolog_file = NULL;
 533                 ret = warnings_fatal;
 534         }
 535
 536         /*
 537          * only really works with 1 file
 538          */
 539         if (o->zone_size && o->open_files > 1)
 540                 o->zone_size = 0;
 541
 542         /*
 543          * If zone_range isn't specified, backward compatibility dictates it
 544          * should be made equal to zone_size.
 545          */
 546         if (o->zone_size && !o->zone_range)
 547                 o->zone_range = o->zone_size;
 548
 549         /*
 550          * Reads can do overwrites, we always need to pre-create the file
 551          */
 552         if (td_read(td) || td_rw(td))
 553                 o->overwrite = 1;
 554
 555         if (!o->min_bs[DDIR_READ])
 556                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
 557         if (!o->max_bs[DDIR_READ])
 558                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 559         if (!o->min_bs[DDIR_WRITE])
 560                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 561         if (!o->max_bs[DDIR_WRITE])
 562                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 563         if (!o->min_bs[DDIR_TRIM])
 564                 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 565         if (!o->max_bs[DDIR_TRIM])
 566                 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 567
 568         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 569         o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
 570
 571         /*
 572          * For random IO, allow blockalign offset other than min_bs.
 573          */
 574         if (!o->ba[DDIR_READ] || !td_random(td))
 575                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
 576         if (!o->ba[DDIR_WRITE] || !td_random(td))
 577                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
 578         if (!o->ba[DDIR_TRIM] || !td_random(td))
 579                 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
 580
 581         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 582             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
 583             o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
 584             !o->norandommap) {
 585                 log_err("fio: Any use of blockalign= turns off randommap\n");
 586                 o->norandommap = 1;
 587                 ret = warnings_fatal;
 588         }
 589
 590         if (!o->file_size_high)
 591                 o->file_size_high = o->file_size_low;
 592
 593         if (o->start_delay_high)
 594                 o->start_delay = get_rand_start_delay(td);
 595
 596         if (o->norandommap && o->verify != VERIFY_NONE
 597             && !fixed_block_size(o))  {
 598                 log_err("fio: norandommap given for variable block sizes, "
 599                         "verify limited\n");
 600                 ret = warnings_fatal;
 601         }
 602         if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
 603                 log_err("fio: bs_unaligned may not work with raw io\n");
 604
 605         /*
 606          * thinktime_spin must be less than thinktime
 607          */
 608         if (o->thinktime_spin > o->thinktime)
 609                 o->thinktime_spin = o->thinktime;
 610
 611         /*
 612          * The low water mark cannot be bigger than the iodepth
 613          */
 614         if (o->iodepth_low > o->iodepth || !o->iodepth_low)
 615                 o->iodepth_low = o->iodepth;
 616
 617         /*
 618          * If batch number isn't set, default to the same as iodepth
 619          */
 620         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 621                 o->iodepth_batch = o->iodepth;
 622
 623         if (o->nr_files > td->files_index)
 624                 o->nr_files = td->files_index;
 625
 626         if (o->open_files > o->nr_files || !o->open_files)
 627                 o->open_files = o->nr_files;
 628
 629         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
 630             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
 631             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 632             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 633                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 634                 ret = 1;
 635         }
 636         if ((o->rate[DDIR_READ] < o->ratemin[DDIR_READ]) ||
 637             (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE]) ||
 638             (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM]) ||
 639             (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ]) ||
 640             (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE]) ||
 641             (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM])) {
 642                 log_err("fio: minimum rate exceeds rate\n");
 643                 ret = 1;
 644         }
 645
 646         if (!o->timeout && o->time_based) {
 647                 log_err("fio: time_based requires a runtime/timeout setting\n");
 648                 o->time_based = 0;
 649                 ret = warnings_fatal;
 650         }
 651
 652         if (o->fill_device && !o->size)
 653                 o->size = -1ULL;
 654
 655         if (o->verify != VERIFY_NONE) {
 656                 if (td_write(td) && o->do_verify && o->numjobs > 1) {
 657                         log_info("Multiple writers may overwrite blocks that "
 658                                 "belong to other jobs. This can cause "
 659                                 "verification failures.\n");
 660                         ret = warnings_fatal;
 661                 }
 662
 663                 o->refill_buffers = 1;
 664                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 665                     !o->verify_interval)
 666                         o->verify_interval = o->min_bs[DDIR_WRITE];
 667
 668                 /*
 669                  * Verify interval must be smaller or equal to the
 670                  * write size.
 671                  */
 672                 if (o->verify_interval > o->min_bs[DDIR_WRITE])
 673                         o->verify_interval = o->min_bs[DDIR_WRITE];
 674                 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
 675                         o->verify_interval = o->min_bs[DDIR_READ];
 676         }
 677
 678         if (o->pre_read) {
 679                 o->invalidate_cache = 0;
 680                 if (td->io_ops->flags & FIO_PIPEIO) {
 681                         log_info("fio: cannot pre-read files with an IO engine"
 682                                  " that isn't seekable. Pre-read disabled.\n");
 683                         ret = warnings_fatal;
 684                 }
 685         }
 686
 687         if (!o->unit_base) {
 688                 if (td->io_ops->flags & FIO_BIT_BASED)
 689                         o->unit_base = 1;
 690                 else
 691                         o->unit_base = 8;
 692         }
 693
 694 #ifndef CONFIG_FDATASYNC
 695         if (o->fdatasync_blocks) {
 696                 log_info("fio: this platform does not support fdatasync()"
 697                          " falling back to using fsync().  Use the 'fsync'"
 698                          " option instead of 'fdatasync' to get rid of"
 699                          " this warning\n");
 700                 o->fsync_blocks = o->fdatasync_blocks;
 701                 o->fdatasync_blocks = 0;
 702                 ret = warnings_fatal;
 703         }
 704 #endif
 705
 706 #ifdef WIN32
 707         /*
 708          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 709          * so fail if we're passed those flags
 710          */
 711         if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
 712                 log_err("fio: Windows does not support direct or non-buffered io with"
 713                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 714                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 715                 ret = 1;
 716         }
 717 #endif
 718
 719         /*
 720          * For fully compressible data, just zero them at init time.
 721          * It's faster than repeatedly filling it.
 722          */
 723         if (td->o.compress_percentage == 100) {
 724                 td->o.zero_buffers = 1;
 725                 td->o.compress_percentage = 0;
 726         }
 727
 728         /*
 729          * Using a non-uniform random distribution excludes usage of
 730          * a random map
 731          */
 732         if (td->o.random_distribution != FIO_RAND_DIST_RANDOM)
 733                 td->o.norandommap = 1;
 734
 735         /*
 736          * If size is set but less than the min block size, complain
 737          */
 738         if (o->size && o->size < td_min_bs(td)) {
 739                 log_err("fio: size too small, must be larger than the IO size: %llu\n", (unsigned long long) o->size);
 740                 ret = 1;
 741         }
 742
 743         /*
 744          * O_ATOMIC implies O_DIRECT
 745          */
 746         if (td->o.oatomic)
 747                 td->o.odirect = 1;
 748
 749         /*
 750          * If randseed is set, that overrides randrepeat
 751          */
 752         if (td->o.rand_seed)
 753                 td->o.rand_repeatable = 0;
 754
 755         if ((td->io_ops->flags & FIO_NOEXTEND) && td->o.file_append) {
 756                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
 757                 ret = 1;
 758         }
 759
 760         if (fio_option_is_set(o, gtod_cpu)) {
 761                 fio_gtod_init();
 762                 fio_gtod_set_cpu(o->gtod_cpu);
 763                 fio_gtod_offload = 1;
 764         }
 765
 766         return ret;
 767 }
 768
 769 /*
 770  * This function leaks the buffer
 771  */
 772 char *fio_uint_to_kmg(unsigned int val)
 773 {
 774         char *buf = malloc(32);
 775         char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
 776         char *p = post;
 777
 778         do {
 779                 if (val & 1023)
 780                         break;
 781
 782                 val >>= 10;
 783                 p++;
 784         } while (*p);
 785
 786         snprintf(buf, 32, "%u%c", val, *p);
 787         return buf;
 788 }
 789
 790 /* External engines are specified by "external:name.o") */
 791 static const char *get_engine_name(const char *str)
 792 {
 793         char *p = strstr(str, ":");
 794
 795         if (!p)
 796                 return str;
 797
 798         p++;
 799         strip_blank_front(&p);
 800         strip_blank_end(p);
 801         return p;
 802 }
 803
 804 static int exists_and_not_file(const char *filename)
 805 {
 806         struct stat sb;
 807
 808         if (lstat(filename, &sb) == -1)
 809                 return 0;
 810
 811         /* \\.\ is the device namespace in Windows, where every file
 812          * is a device node */
 813         if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
 814                 return 0;
 815
 816         return 1;
 817 }
 818
 819 static void td_fill_rand_seeds_internal(struct thread_data *td)
 820 {
 821         init_rand_seed(&td->bsrange_state, td->rand_seeds[FIO_RAND_BS_OFF]);
 822         init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF]);
 823         init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF]);
 824
 825         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 826                 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF]);
 827
 828         init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF]);
 829         init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF]);
 830         init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY]);
 831
 832         if (!td_random(td))
 833                 return;
 834
 835         if (td->o.rand_repeatable)
 836                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
 837
 838         init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
 839         init_rand_seed(&td->seq_rand_state[DDIR_READ], td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF]);
 840         init_rand_seed(&td->seq_rand_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_SEQ_RAND_WRITE_OFF]);
 841         init_rand_seed(&td->seq_rand_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_SEQ_RAND_TRIM_OFF]);
 842 }
 843
 844 void td_fill_rand_seeds(struct thread_data *td)
 845 {
 846         if (td->o.allrand_repeatable) {
 847                 unsigned int i;
 848
 849                 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
 850                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
 851                                 + i;
 852         }
 853
 854         td_fill_rand_seeds_internal(td);
 855
 856         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF]);
 857         frand_copy(&td->buf_state_prev, &td->buf_state);
 858
 859         init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF]);
 860 }
 861
 862 /*
 863  * Initializes the ioengine configured for a job, if it has not been done so
 864  * already.
 865  */
 866 int ioengine_load(struct thread_data *td)
 867 {
 868         const char *engine;
 869
 870         /*
 871          * Engine has already been loaded.
 872          */
 873         if (td->io_ops)
 874                 return 0;
 875         if (!td->o.ioengine) {
 876                 log_err("fio: internal fault, no IO engine specified\n");
 877                 return 1;
 878         }
 879
 880         engine = get_engine_name(td->o.ioengine);
 881         td->io_ops = load_ioengine(td, engine);
 882         if (!td->io_ops) {
 883                 log_err("fio: failed to load engine %s\n", engine);
 884                 return 1;
 885         }
 886
 887         if (td->io_ops->option_struct_size && td->io_ops->options) {
 888                 /*
 889                  * In cases where td->eo is set, clone it for a child thread.
 890                  * This requires that the parent thread has the same ioengine,
 891                  * but that requirement must be enforced by the code which
 892                  * cloned the thread.
 893                  */
 894                 void *origeo = td->eo;
 895                 /*
 896                  * Otherwise use the default thread options.
 897                  */
 898                 if (!origeo && td != &def_thread && def_thread.eo &&
 899                     def_thread.io_ops->options == td->io_ops->options)
 900                         origeo = def_thread.eo;
 901
 902                 options_init(td->io_ops->options);
 903                 td->eo = malloc(td->io_ops->option_struct_size);
 904                 /*
 905                  * Use the default thread as an option template if this uses the
 906                  * same options structure and there are non-default options
 907                  * used.
 908                  */
 909                 if (origeo) {
 910                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
 911                         options_mem_dupe(td->eo, td->io_ops->options);
 912                 } else {
 913                         memset(td->eo, 0, td->io_ops->option_struct_size);
 914                         fill_default_options(td->eo, td->io_ops->options);
 915                 }
 916                 *(struct thread_data **)td->eo = td;
 917         }
 918
 919         return 0;
 920 }
 921
 922 static void init_flags(struct thread_data *td)
 923 {
 924         struct thread_options *o = &td->o;
 925
 926         if (o->verify_backlog)
 927                 td->flags |= TD_F_VER_BACKLOG;
 928         if (o->trim_backlog)
 929                 td->flags |= TD_F_TRIM_BACKLOG;
 930         if (o->read_iolog_file)
 931                 td->flags |= TD_F_READ_IOLOG;
 932         if (o->refill_buffers)
 933                 td->flags |= TD_F_REFILL_BUFFERS;
 934         /*
 935          * Always scramble buffers if asked to
 936          */
 937         if (o->scramble_buffers && fio_option_is_set(o, scramble_buffers))
 938                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
 939         /*
 940          * But also scramble buffers, unless we were explicitly asked
 941          * to zero them.
 942          */
 943         if (o->scramble_buffers && !(o->zero_buffers &&
 944             fio_option_is_set(o, zero_buffers)))
 945                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
 946         if (o->verify != VERIFY_NONE)
 947                 td->flags |= TD_F_VER_NONE;
 948 }
 949
 950 static int setup_random_seeds(struct thread_data *td)
 951 {
 952         unsigned long seed;
 953         unsigned int i;
 954
 955         if (!td->o.rand_repeatable && !td->o.rand_seed)
 956                 return init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds));
 957
 958         if (!td->o.rand_seed)
 959                 seed = 0x89;
 960         else
 961                 seed = td->o.rand_seed;
 962
 963         for (i = 0; i < 4; i++)
 964                 seed *= 0x9e370001UL;
 965
 966         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
 967                 td->rand_seeds[i] = seed;
 968                 seed *= 0x9e370001UL;
 969         }
 970
 971         td_fill_rand_seeds(td);
 972         return 0;
 973 }
 974
 975 enum {
 976         FPRE_NONE = 0,
 977         FPRE_JOBNAME,
 978         FPRE_JOBNUM,
 979         FPRE_FILENUM
 980 };
 981
 982 static struct fpre_keyword {
 983         const char *keyword;
 984         size_t strlen;
 985         int key;
 986 } fpre_keywords[] = {
 987         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
 988         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
 989         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
 990         { .keyword = NULL, },
 991         };
 992
 993 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
 994                            const char *jobname, int jobnum, int filenum)
 995 {
 996         struct fpre_keyword *f;
 997         char copy[PATH_MAX];
 998         size_t dst_left = PATH_MAX - 1;
 999
1000         if (!o->filename_format || !strlen(o->filename_format)) {
1001                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
1002                 return NULL;
1003         }
1004
1005         for (f = &fpre_keywords[0]; f->keyword; f++)
1006                 f->strlen = strlen(f->keyword);
1007
1008         buf[buf_size - 1] = '\0';
1009         strncpy(buf, o->filename_format, buf_size - 1);
1010
1011         memset(copy, 0, sizeof(copy));
1012         for (f = &fpre_keywords[0]; f->keyword; f++) {
1013                 do {
1014                         size_t pre_len, post_start = 0;
1015                         char *str, *dst = copy;
1016
1017                         str = strcasestr(buf, f->keyword);
1018                         if (!str)
1019                                 break;
1020
1021                         pre_len = str - buf;
1022                         if (strlen(str) != f->strlen)
1023                                 post_start = pre_len + f->strlen;
1024
1025                         if (pre_len) {
1026                                 strncpy(dst, buf, pre_len);
1027                                 dst += pre_len;
1028                                 dst_left -= pre_len;
1029                         }
1030
1031                         switch (f->key) {
1032                         case FPRE_JOBNAME: {
1033                                 int ret;
1034
1035                                 ret = snprintf(dst, dst_left, "%s", jobname);
1036                                 if (ret < 0)
1037                                         break;
1038                                 else if (ret > dst_left) {
1039                                         log_err("fio: truncated filename\n");
1040                                         dst += dst_left;
1041                                         dst_left = 0;
1042                                 } else {
1043                                         dst += ret;
1044                                         dst_left -= ret;
1045                                 }
1046                                 break;
1047                                 }
1048                         case FPRE_JOBNUM: {
1049                                 int ret;
1050
1051                                 ret = snprintf(dst, dst_left, "%d", jobnum);
1052                                 if (ret < 0)
1053                                         break;
1054                                 else if (ret > dst_left) {
1055                                         log_err("fio: truncated filename\n");
1056                                         dst += dst_left;
1057                                         dst_left = 0;
1058                                 } else {
1059                                         dst += ret;
1060                                         dst_left -= ret;
1061                                 }
1062                                 break;
1063                                 }
1064                         case FPRE_FILENUM: {
1065                                 int ret;
1066
1067                                 ret = snprintf(dst, dst_left, "%d", filenum);
1068                                 if (ret < 0)
1069                                         break;
1070                                 else if (ret > dst_left) {
1071                                         log_err("fio: truncated filename\n");
1072                                         dst += dst_left;
1073                                         dst_left = 0;
1074                                 } else {
1075                                         dst += ret;
1076                                         dst_left -= ret;
1077                                 }
1078                                 break;
1079                                 }
1080                         default:
1081                                 assert(0);
1082                                 break;
1083                         }
1084
1085                         if (post_start)
1086                                 strncpy(dst, buf + post_start, dst_left);
1087
1088                         strncpy(buf, copy, buf_size - 1);
1089                 } while (1);
1090         }
1091
1092         return buf;
1093 }
1094
1095 int parse_dryrun(void)
1096 {
1097         return dump_cmdline || parse_only;
1098 }
1099
1100 /*
1101  * Adds a job to the list of things todo. Sanitizes the various options
1102  * to make sure we don't have conflicts, and initializes various
1103  * members of td.
1104  */
1105 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1106                    int recursed, int client_type)
1107 {
1108         unsigned int i;
1109         char fname[PATH_MAX];
1110         int numjobs, file_alloced;
1111         struct thread_options *o = &td->o;
1112         char logname[PATH_MAX + 32];
1113
1114         /*
1115          * the def_thread is just for options, it's not a real job
1116          */
1117         if (td == &def_thread)
1118                 return 0;
1119
1120         init_flags(td);
1121
1122         /*
1123          * if we are just dumping the output command line, don't add the job
1124          */
1125         if (parse_dryrun()) {
1126                 put_job(td);
1127                 return 0;
1128         }
1129
1130         td->client_type = client_type;
1131
1132         if (profile_td_init(td))
1133                 goto err;
1134
1135         if (ioengine_load(td))
1136                 goto err;
1137
1138         if (o->odirect)
1139                 td->io_ops->flags |= FIO_RAWIO;
1140
1141         file_alloced = 0;
1142         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1143                 file_alloced = 1;
1144
1145                 if (o->nr_files == 1 && exists_and_not_file(jobname))
1146                         add_file(td, jobname, job_add_num, 0);
1147                 else {
1148                         for (i = 0; i < o->nr_files; i++)
1149                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1150                 }
1151         }
1152
1153         if (fixup_options(td))
1154                 goto err;
1155
1156         flow_init_job(td);
1157
1158         /*
1159          * IO engines only need this for option callbacks, and the address may
1160          * change in subprocesses.
1161          */
1162         if (td->eo)
1163                 *(struct thread_data **)td->eo = NULL;
1164
1165         if (td->io_ops->flags & FIO_DISKLESSIO) {
1166                 struct fio_file *f;
1167
1168                 for_each_file(td, f, i)
1169                         f->real_file_size = -1ULL;
1170         }
1171
1172         td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
1173
1174         td->ts.clat_percentiles = o->clat_percentiles;
1175         td->ts.percentile_precision = o->percentile_precision;
1176         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1177
1178         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1179                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1180                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1181                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1182                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1183         }
1184         td->ddir_seq_nr = o->ddir_seq_nr;
1185
1186         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1187                 prev_group_jobs = 0;
1188                 groupid++;
1189         }
1190
1191         td->groupid = groupid;
1192         prev_group_jobs++;
1193
1194         if (setup_random_seeds(td)) {
1195                 td_verror(td, errno, "init_random_state");
1196                 goto err;
1197         }
1198
1199         if (setup_rate(td))
1200                 goto err;
1201
1202         if (o->lat_log_file) {
1203                 struct log_params p = {
1204                         .td = td,
1205                         .avg_msec = o->log_avg_msec,
1206                         .log_type = IO_LOG_TYPE_LAT,
1207                         .log_offset = o->log_offset,
1208                         .log_gz = o->log_gz,
1209                         .log_gz_store = o->log_gz_store,
1210                 };
1211                 const char *suf;
1212
1213                 if (p.log_gz_store)
1214                         suf = "log.fz";
1215                 else
1216                         suf = "log";
1217
1218                 snprintf(logname, sizeof(logname), "%s_lat.%d.%s",
1219                                 o->lat_log_file, td->thread_number, suf);
1220                 setup_log(&td->lat_log, &p, logname);
1221                 snprintf(logname, sizeof(logname), "%s_slat.%d.%s",
1222                                 o->lat_log_file, td->thread_number, suf);
1223                 setup_log(&td->slat_log, &p, logname);
1224                 snprintf(logname, sizeof(logname), "%s_clat.%d.%s",
1225                                 o->lat_log_file, td->thread_number, suf);
1226                 setup_log(&td->clat_log, &p, logname);
1227         }
1228         if (o->bw_log_file) {
1229                 struct log_params p = {
1230                         .td = td,
1231                         .avg_msec = o->log_avg_msec,
1232                         .log_type = IO_LOG_TYPE_BW,
1233                         .log_offset = o->log_offset,
1234                         .log_gz = o->log_gz,
1235                         .log_gz_store = o->log_gz_store,
1236                 };
1237                 const char *suf;
1238
1239                 if (p.log_gz_store)
1240                         suf = "log.fz";
1241                 else
1242                         suf = "log";
1243
1244                 snprintf(logname, sizeof(logname), "%s_bw.%d.%s",
1245                                 o->bw_log_file, td->thread_number, suf);
1246                 setup_log(&td->bw_log, &p, logname);
1247         }
1248         if (o->iops_log_file) {
1249                 struct log_params p = {
1250                         .td = td,
1251                         .avg_msec = o->log_avg_msec,
1252                         .log_type = IO_LOG_TYPE_IOPS,
1253                         .log_offset = o->log_offset,
1254                         .log_gz = o->log_gz,
1255                         .log_gz_store = o->log_gz_store,
1256                 };
1257                 const char *suf;
1258
1259                 if (p.log_gz_store)
1260                         suf = "log.fz";
1261                 else
1262                         suf = "log";
1263
1264                 snprintf(logname, sizeof(logname), "%s_iops.%d.%s",
1265                                 o->iops_log_file, td->thread_number, suf);
1266                 setup_log(&td->iops_log, &p, logname);
1267         }
1268
1269         if (!o->name)
1270                 o->name = strdup(jobname);
1271
1272         if (output_format == FIO_OUTPUT_NORMAL) {
1273                 if (!job_add_num) {
1274                         if (is_backend && !recursed)
1275                                 fio_server_send_add_job(td);
1276
1277                         if (!(td->io_ops->flags & FIO_NOIO)) {
1278                                 char *c1, *c2, *c3, *c4;
1279                                 char *c5 = NULL, *c6 = NULL;
1280
1281                                 c1 = fio_uint_to_kmg(o->min_bs[DDIR_READ]);
1282                                 c2 = fio_uint_to_kmg(o->max_bs[DDIR_READ]);
1283                                 c3 = fio_uint_to_kmg(o->min_bs[DDIR_WRITE]);
1284                                 c4 = fio_uint_to_kmg(o->max_bs[DDIR_WRITE]);
1285
1286                                 if (!o->bs_is_seq_rand) {
1287                                         c5 = fio_uint_to_kmg(o->min_bs[DDIR_TRIM]);
1288                                         c6 = fio_uint_to_kmg(o->max_bs[DDIR_TRIM]);
1289                                 }
1290
1291                                 log_info("%s: (g=%d): rw=%s, ", td->o.name,
1292                                                         td->groupid,
1293                                                         ddir_str(o->td_ddir));
1294
1295                                 if (o->bs_is_seq_rand)
1296                                         log_info("bs(seq/rand)=%s-%s/%s-%s, ",
1297                                                         c1, c2, c3, c4);
1298                                 else
1299                                         log_info("bs=%s-%s/%s-%s/%s-%s, ",
1300                                                         c1, c2, c3, c4, c5, c6);
1301
1302                                 log_info("ioengine=%s, iodepth=%u\n",
1303                                                 td->io_ops->name, o->iodepth);
1304
1305                                 free(c1);
1306                                 free(c2);
1307                                 free(c3);
1308                                 free(c4);
1309                                 free(c5);
1310                                 free(c6);
1311                         }
1312                 } else if (job_add_num == 1)
1313                         log_info("...\n");
1314         }
1315
1316         /*
1317          * recurse add identical jobs, clear numjobs and stonewall options
1318          * as they don't apply to sub-jobs
1319          */
1320         numjobs = o->numjobs;
1321         while (--numjobs) {
1322                 struct thread_data *td_new = get_new_job(0, td, 1, jobname);
1323
1324                 if (!td_new)
1325                         goto err;
1326
1327                 td_new->o.numjobs = 1;
1328                 td_new->o.stonewall = 0;
1329                 td_new->o.new_group = 0;
1330                 td_new->subjob_number = numjobs;
1331
1332                 if (file_alloced) {
1333                         if (td_new->files) {
1334                                 struct fio_file *f;
1335                                 for_each_file(td_new, f, i) {
1336                                         if (f->file_name)
1337                                                 sfree(f->file_name);
1338                                         sfree(f);
1339                                 }
1340                                 free(td_new->files);
1341                                 td_new->files = NULL;
1342                         }
1343                         td_new->files_index = 0;
1344                         td_new->files_size = 0;
1345                         if (td_new->o.filename) {
1346                                 free(td_new->o.filename);
1347                                 td_new->o.filename = NULL;
1348                         }
1349                 }
1350
1351                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1352                         goto err;
1353         }
1354
1355         return 0;
1356 err:
1357         put_job(td);
1358         return -1;
1359 }
1360
1361 /*
1362  * Parse as if 'o' was a command line
1363  */
1364 void add_job_opts(const char **o, int client_type)
1365 {
1366         struct thread_data *td, *td_parent;
1367         int i, in_global = 1;
1368         char jobname[32];
1369
1370         i = 0;
1371         td_parent = td = NULL;
1372         while (o[i]) {
1373                 if (!strncmp(o[i], "name", 4)) {
1374                         in_global = 0;
1375                         if (td)
1376                                 add_job(td, jobname, 0, 0, client_type);
1377                         td = NULL;
1378                         sprintf(jobname, "%s", o[i] + 5);
1379                 }
1380                 if (in_global && !td_parent)
1381                         td_parent = get_new_job(1, &def_thread, 0, jobname);
1382                 else if (!in_global && !td) {
1383                         if (!td_parent)
1384                                 td_parent = &def_thread;
1385                         td = get_new_job(0, td_parent, 0, jobname);
1386                 }
1387                 if (in_global)
1388                         fio_options_parse(td_parent, (char **) &o[i], 1, 0);
1389                 else
1390                         fio_options_parse(td, (char **) &o[i], 1, 0);
1391                 i++;
1392         }
1393
1394         if (td)
1395                 add_job(td, jobname, 0, 0, client_type);
1396 }
1397
1398 static int skip_this_section(const char *name)
1399 {
1400         int i;
1401
1402         if (!nr_job_sections)
1403                 return 0;
1404         if (!strncmp(name, "global", 6))
1405                 return 0;
1406
1407         for (i = 0; i < nr_job_sections; i++)
1408                 if (!strcmp(job_sections[i], name))
1409                         return 0;
1410
1411         return 1;
1412 }
1413
1414 static int is_empty_or_comment(char *line)
1415 {
1416         unsigned int i;
1417
1418         for (i = 0; i < strlen(line); i++) {
1419                 if (line[i] == ';')
1420                         return 1;
1421                 if (line[i] == '#')
1422                         return 1;
1423                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1424                         return 0;
1425         }
1426
1427         return 1;
1428 }
1429
1430 /*
1431  * This is our [ini] type file parser.
1432  */
1433 int __parse_jobs_ini(struct thread_data *td,
1434                 char *file, int is_buf, int stonewall_flag, int type,
1435                 int nested, char *name, char ***popts, int *aopts, int *nopts)
1436 {
1437         unsigned int global = 0;
1438         char *string;
1439         FILE *f;
1440         char *p;
1441         int ret = 0, stonewall;
1442         int first_sect = 1;
1443         int skip_fgets = 0;
1444         int inside_skip = 0;
1445         char **opts;
1446         int i, alloc_opts, num_opts;
1447
1448         dprint(FD_PARSE, "Parsing ini file %s\n", file);
1449         assert(td || !nested);
1450
1451         if (is_buf)
1452                 f = NULL;
1453         else {
1454                 if (!strcmp(file, "-"))
1455                         f = stdin;
1456                 else
1457                         f = fopen(file, "r");
1458
1459                 if (!f) {
1460                         int __err = errno;
1461
1462                         log_err("fio: unable to open '%s' job file\n", file);
1463                         if (td)
1464                                 td_verror(td, __err, "job file open");
1465                         return 1;
1466                 }
1467         }
1468
1469         string = malloc(4096);
1470
1471         /*
1472          * it's really 256 + small bit, 280 should suffice
1473          */
1474         if (!nested) {
1475                 name = malloc(280);
1476                 memset(name, 0, 280);
1477         }
1478
1479         opts = NULL;
1480         if (nested && popts) {
1481                 opts = *popts;
1482                 alloc_opts = *aopts;
1483                 num_opts = *nopts;
1484         }
1485
1486         if (!opts) {
1487                 alloc_opts = 8;
1488                 opts = malloc(sizeof(char *) * alloc_opts);
1489                 num_opts = 0;
1490         }
1491
1492         stonewall = stonewall_flag;
1493         do {
1494                 /*
1495                  * if skip_fgets is set, we already have loaded a line we
1496                  * haven't handled.
1497                  */
1498                 if (!skip_fgets) {
1499                         if (is_buf)
1500                                 p = strsep(&file, "\n");
1501                         else
1502                                 p = fgets(string, 4096, f);
1503                         if (!p)
1504                                 break;
1505                 }
1506
1507                 skip_fgets = 0;
1508                 strip_blank_front(&p);
1509                 strip_blank_end(p);
1510
1511                 dprint(FD_PARSE, "%s\n", p);
1512                 if (is_empty_or_comment(p))
1513                         continue;
1514
1515                 if (!nested) {
1516                         if (sscanf(p, "[%255[^\n]]", name) != 1) {
1517                                 if (inside_skip)
1518                                         continue;
1519
1520                                 log_err("fio: option <%s> outside of "
1521                                         "[] job section\n", p);
1522                                 ret = 1;
1523                                 break;
1524                         }
1525
1526                         name[strlen(name) - 1] = '\0';
1527
1528                         if (skip_this_section(name)) {
1529                                 inside_skip = 1;
1530                                 continue;
1531                         } else
1532                                 inside_skip = 0;
1533
1534                         dprint(FD_PARSE, "Parsing section [%s]\n", name);
1535
1536                         global = !strncmp(name, "global", 6);
1537
1538                         if (dump_cmdline) {
1539                                 if (first_sect)
1540                                         log_info("fio ");
1541                                 if (!global)
1542                                         log_info("--name=%s ", name);
1543                                 first_sect = 0;
1544                         }
1545
1546                         td = get_new_job(global, &def_thread, 0, name);
1547                         if (!td) {
1548                                 ret = 1;
1549                                 break;
1550                         }
1551
1552                         /*
1553                          * Separate multiple job files by a stonewall
1554                          */
1555                         if (!global && stonewall) {
1556                                 td->o.stonewall = stonewall;
1557                                 stonewall = 0;
1558                         }
1559
1560                         num_opts = 0;
1561                         memset(opts, 0, alloc_opts * sizeof(char *));
1562                 }
1563                 else
1564                         skip_fgets = 1;
1565
1566                 while (1) {
1567                         if (!skip_fgets) {
1568                                 if (is_buf)
1569                                         p = strsep(&file, "\n");
1570                                 else
1571                                         p = fgets(string, 4096, f);
1572                                 if (!p)
1573                                         break;
1574                                 dprint(FD_PARSE, "%s", p);
1575                         }
1576                         else
1577                                 skip_fgets = 0;
1578
1579                         if (is_empty_or_comment(p))
1580                                 continue;
1581
1582                         strip_blank_front(&p);
1583
1584                         /*
1585                          * new section, break out and make sure we don't
1586                          * fgets() a new line at the top.
1587                          */
1588                         if (p[0] == '[') {
1589                                 if (nested) {
1590                                         log_err("No new sections in included files\n");
1591                                         return 1;
1592                                 }
1593
1594                                 skip_fgets = 1;
1595                                 break;
1596                         }
1597
1598                         strip_blank_end(p);
1599
1600                         if (!strncmp(p, "include", strlen("include"))) {
1601                                 char *filename = p + strlen("include") + 1;
1602
1603                                 if ((ret = __parse_jobs_ini(td, filename,
1604                                                 is_buf, stonewall_flag, type, 1,
1605                                                 name, &opts, &alloc_opts, &num_opts))) {
1606                                         log_err("Error %d while parsing include file %s\n",
1607                                                 ret, filename);
1608                                         break;
1609                                 }
1610                                 continue;
1611                         }
1612
1613                         if (num_opts == alloc_opts) {
1614                                 alloc_opts <<= 1;
1615                                 opts = realloc(opts,
1616                                                 alloc_opts * sizeof(char *));
1617                         }
1618
1619                         opts[num_opts] = strdup(p);
1620                         num_opts++;
1621                 }
1622
1623                 if (nested) {
1624                         *popts = opts;
1625                         *aopts = alloc_opts;
1626                         *nopts = num_opts;
1627                         goto out;
1628                 }
1629
1630                 ret = fio_options_parse(td, opts, num_opts, dump_cmdline);
1631                 if (!ret)
1632                         ret = add_job(td, name, 0, 0, type);
1633                 else {
1634                         log_err("fio: job %s dropped\n", name);
1635                         put_job(td);
1636                 }
1637
1638                 for (i = 0; i < num_opts; i++)
1639                         free(opts[i]);
1640                 num_opts = 0;
1641         } while (!ret);
1642
1643         if (dump_cmdline)
1644                 log_info("\n");
1645
1646         i = 0;
1647         while (i < nr_job_sections) {
1648                 free(job_sections[i]);
1649                 i++;
1650         }
1651
1652         free(opts);
1653 out:
1654         free(string);
1655         if (!nested)
1656                 free(name);
1657         if (!is_buf && f != stdin)
1658                 fclose(f);
1659         return ret;
1660 }
1661
1662 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
1663 {
1664         return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
1665                         0, NULL, NULL, NULL, NULL);
1666 }
1667
1668 static int fill_def_thread(void)
1669 {
1670         memset(&def_thread, 0, sizeof(def_thread));
1671
1672         fio_getaffinity(getpid(), &def_thread.o.cpumask);
1673         def_thread.o.error_dump = 1;
1674
1675         /*
1676          * fill default options
1677          */
1678         fio_fill_default_options(&def_thread);
1679         return 0;
1680 }
1681
1682 static void usage(const char *name)
1683 {
1684         printf("%s\n", fio_version_string);
1685         printf("%s [options] [job options] <job file(s)>\n", name);
1686         printf("  --debug=options\tEnable debug logging. May be one/more of:\n"
1687                 "\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
1688                 "\t\t\tdiskutil,job,mutex,profile,time,net,rate,compress\n");
1689         printf("  --parse-only\t\tParse options only, don't start any IO\n");
1690         printf("  --output\t\tWrite output to file\n");
1691         printf("  --runtime\t\tRuntime in seconds\n");
1692         printf("  --bandwidth-log\tGenerate per-job bandwidth logs\n");
1693         printf("  --minimal\t\tMinimal (terse) output\n");
1694         printf("  --output-format=x\tOutput format (terse,json,normal)\n");
1695         printf("  --terse-version=x\tSet terse version output format to 'x'\n");
1696         printf("  --version\t\tPrint version info and exit\n");
1697         printf("  --help\t\tPrint this page\n");
1698         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
1699         printf("  --crctest\t\tTest speed of checksum functions\n");
1700         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
1701                 " them\n");
1702         printf("  --enghelp=engine\tPrint ioengine help, or list"
1703                 " available ioengines\n");
1704         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
1705                 " cmd\n");
1706         printf("  --showcmd\t\tTurn a job file into command line options\n");
1707         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
1708         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
1709         printf("  --eta-newline=time\tForce a new line for every 'time'");
1710         printf(" period passed\n");
1711         printf("  --status-interval=t\tForce full status dump every");
1712         printf(" 't' period passed\n");
1713         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
1714                 " writes\n");
1715         printf("  --section=name\tOnly run specified section in job file\n");
1716         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
1717                 " (def 1024)\n");
1718         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
1719         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1720         printf("  --server=args\t\tStart a backend fio server\n");
1721         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
1722         printf("  --client=hostname\tTalk to remote backend fio server at hostname\n");
1723         printf("  --remote-config=file\tTell fio server to load this local job file\n");
1724         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
1725                 "\t\t\t(option=system,percpu) or run unit work\n"
1726                 "\t\t\tcalibration only (option=calibrate)\n");
1727 #ifdef CONFIG_ZLIB
1728         printf("  --inflate-log=log\tInflate and output compressed log\n");
1729 #endif
1730         printf("  --trigger-file=file\tExecute trigger cmd when file exists\n");
1731         printf("  --trigger-timeout=t\tExecute trigger af this time\n");
1732         printf("  --trigger=cmd\t\tSet this command as local trigger\n");
1733         printf("  --trigger-remote=cmd\tSet this command as remote trigger\n");
1734         printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1735         printf("\n                   Jens Axboe <jaxboe@fusionio.com>");
1736         printf("\n                   Jens Axboe <axboe@fb.com>\n");
1737 }
1738
1739 #ifdef FIO_INC_DEBUG
1740 struct debug_level debug_levels[] = {
1741         { .name = "process",
1742           .help = "Process creation/exit logging",
1743           .shift = FD_PROCESS,
1744         },
1745         { .name = "file",
1746           .help = "File related action logging",
1747           .shift = FD_FILE,
1748         },
1749         { .name = "io",
1750           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
1751           .shift = FD_IO,
1752         },
1753         { .name = "mem",
1754           .help = "Memory allocation/freeing logging",
1755           .shift = FD_MEM,
1756         },
1757         { .name = "blktrace",
1758           .help = "blktrace action logging",
1759           .shift = FD_BLKTRACE,
1760         },
1761         { .name = "verify",
1762           .help = "IO verification action logging",
1763           .shift = FD_VERIFY,
1764         },
1765         { .name = "random",
1766           .help = "Random generation logging",
1767           .shift = FD_RANDOM,
1768         },
1769         { .name = "parse",
1770           .help = "Parser logging",
1771           .shift = FD_PARSE,
1772         },
1773         { .name = "diskutil",
1774           .help = "Disk utility logging actions",
1775           .shift = FD_DISKUTIL,
1776         },
1777         { .name = "job",
1778           .help = "Logging related to creating/destroying jobs",
1779           .shift = FD_JOB,
1780         },
1781         { .name = "mutex",
1782           .help = "Mutex logging",
1783           .shift = FD_MUTEX
1784         },
1785         { .name = "profile",
1786           .help = "Logging related to profiles",
1787           .shift = FD_PROFILE,
1788         },
1789         { .name = "time",
1790           .help = "Logging related to time keeping functions",
1791           .shift = FD_TIME,
1792         },
1793         { .name = "net",
1794           .help = "Network logging",
1795           .shift = FD_NET,
1796         },
1797         { .name = "rate",
1798           .help = "Rate logging",
1799           .shift = FD_RATE,
1800         },
1801         { .name = "compress",
1802           .help = "Log compression logging",
1803           .shift = FD_COMPRESS,
1804         },
1805         { .name = NULL, },
1806 };
1807
1808 static int set_debug(const char *string)
1809 {
1810         struct debug_level *dl;
1811         char *p = (char *) string;
1812         char *opt;
1813         int i;
1814
1815         if (!strcmp(string, "?") || !strcmp(string, "help")) {
1816                 log_info("fio: dumping debug options:");
1817                 for (i = 0; debug_levels[i].name; i++) {
1818                         dl = &debug_levels[i];
1819                         log_info("%s,", dl->name);
1820                 }
1821                 log_info("all\n");
1822                 return 1;
1823         }
1824
1825         while ((opt = strsep(&p, ",")) != NULL) {
1826                 int found = 0;
1827
1828                 if (!strncmp(opt, "all", 3)) {
1829                         log_info("fio: set all debug options\n");
1830                         fio_debug = ~0UL;
1831                         continue;
1832                 }
1833
1834                 for (i = 0; debug_levels[i].name; i++) {
1835                         dl = &debug_levels[i];
1836                         found = !strncmp(opt, dl->name, strlen(dl->name));
1837                         if (!found)
1838                                 continue;
1839
1840                         if (dl->shift == FD_JOB) {
1841                                 opt = strchr(opt, ':');
1842                                 if (!opt) {
1843                                         log_err("fio: missing job number\n");
1844                                         break;
1845                                 }
1846                                 opt++;
1847                                 fio_debug_jobno = atoi(opt);
1848                                 log_info("fio: set debug jobno %d\n",
1849                                                         fio_debug_jobno);
1850                         } else {
1851                                 log_info("fio: set debug option %s\n", opt);
1852                                 fio_debug |= (1UL << dl->shift);
1853                         }
1854                         break;
1855                 }
1856
1857                 if (!found)
1858                         log_err("fio: debug mask %s not found\n", opt);
1859         }
1860         return 0;
1861 }
1862 #else
1863 static int set_debug(const char *string)
1864 {
1865         log_err("fio: debug tracing not included in build\n");
1866         return 1;
1867 }
1868 #endif
1869
1870 static void fio_options_fill_optstring(void)
1871 {
1872         char *ostr = cmd_optstr;
1873         int i, c;
1874
1875         c = i = 0;
1876         while (l_opts[i].name) {
1877                 ostr[c++] = l_opts[i].val;
1878                 if (l_opts[i].has_arg == required_argument)
1879                         ostr[c++] = ':';
1880                 else if (l_opts[i].has_arg == optional_argument) {
1881                         ostr[c++] = ':';
1882                         ostr[c++] = ':';
1883                 }
1884                 i++;
1885         }
1886         ostr[c] = '\0';
1887 }
1888
1889 static int client_flag_set(char c)
1890 {
1891         int i;
1892
1893         i = 0;
1894         while (l_opts[i].name) {
1895                 int val = l_opts[i].val;
1896
1897                 if (c == (val & 0xff))
1898                         return (val & FIO_CLIENT_FLAG);
1899
1900                 i++;
1901         }
1902
1903         return 0;
1904 }
1905
1906 static void parse_cmd_client(void *client, char *opt)
1907 {
1908         fio_client_add_cmd_option(client, opt);
1909 }
1910
1911 static void show_closest_option(const char *name)
1912 {
1913         int best_option, best_distance;
1914         int i, distance;
1915
1916         while (*name == '-')
1917                 name++;
1918
1919         best_option = -1;
1920         best_distance = INT_MAX;
1921         i = 0;
1922         while (l_opts[i].name) {
1923                 distance = string_distance(name, l_opts[i].name);
1924                 if (distance < best_distance) {
1925                         best_distance = distance;
1926                         best_option = i;
1927                 }
1928                 i++;
1929         }
1930
1931         if (best_option != -1)
1932                 log_err("Did you mean %s?\n", l_opts[best_option].name);
1933 }
1934
1935 int parse_cmd_line(int argc, char *argv[], int client_type)
1936 {
1937         struct thread_data *td = NULL;
1938         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1939         char *ostr = cmd_optstr;
1940         void *pid_file = NULL;
1941         void *cur_client = NULL;
1942         int backend = 0;
1943
1944         /*
1945          * Reset optind handling, since we may call this multiple times
1946          * for the backend.
1947          */
1948         optind = 1;
1949
1950         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1951                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1952                         parse_cmd_client(cur_client, argv[optind - 1]);
1953                         c &= ~FIO_CLIENT_FLAG;
1954                 }
1955
1956                 switch (c) {
1957                 case 'a':
1958                         smalloc_pool_size = atoi(optarg);
1959                         break;
1960                 case 't':
1961                         if (check_str_time(optarg, &def_timeout, 1)) {
1962                                 log_err("fio: failed parsing time %s\n", optarg);
1963                                 do_exit++;
1964                                 exit_val = 1;
1965                         }
1966                         break;
1967                 case 'l':
1968                         log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
1969                         do_exit++;
1970                         exit_val = 1;
1971                         break;
1972                 case 'b':
1973                         write_bw_log = 1;
1974                         break;
1975                 case 'o':
1976                         if (f_out && f_out != stdout)
1977                                 fclose(f_out);
1978
1979                         f_out = fopen(optarg, "w+");
1980                         if (!f_out) {
1981                                 perror("fopen output");
1982                                 exit(1);
1983                         }
1984                         f_err = f_out;
1985                         break;
1986                 case 'm':
1987                         output_format = FIO_OUTPUT_TERSE;
1988                         break;
1989                 case 'F':
1990                         if (!optarg) {
1991                                 log_err("fio: missing --output-format argument\n");
1992                                 exit_val = 1;
1993                                 do_exit++;
1994                                 break;
1995                         }
1996                         if (!strcmp(optarg, "minimal") ||
1997                             !strcmp(optarg, "terse") ||
1998                             !strcmp(optarg, "csv"))
1999                                 output_format = FIO_OUTPUT_TERSE;
2000                         else if (!strcmp(optarg, "json"))
2001                                 output_format = FIO_OUTPUT_JSON;
2002                         else
2003                                 output_format = FIO_OUTPUT_NORMAL;
2004                         break;
2005                 case 'f':
2006                         append_terse_output = 1;
2007                         break;
2008                 case 'h':
2009                         did_arg = 1;
2010                         if (!cur_client) {
2011                                 usage(argv[0]);
2012                                 do_exit++;
2013                         }
2014                         break;
2015                 case 'c':
2016                         did_arg = 1;
2017                         if (!cur_client) {
2018                                 fio_show_option_help(optarg);
2019                                 do_exit++;
2020                         }
2021                         break;
2022                 case 'i':
2023                         did_arg = 1;
2024                         if (!cur_client) {
2025                                 fio_show_ioengine_help(optarg);
2026                                 do_exit++;
2027                         }
2028                         break;
2029                 case 's':
2030                         did_arg = 1;
2031                         dump_cmdline = 1;
2032                         break;
2033                 case 'r':
2034                         read_only = 1;
2035                         break;
2036                 case 'v':
2037                         did_arg = 1;
2038                         if (!cur_client) {
2039                                 log_info("%s\n", fio_version_string);
2040                                 do_exit++;
2041                         }
2042                         break;
2043                 case 'V':
2044                         terse_version = atoi(optarg);
2045                         if (!(terse_version == 2 || terse_version == 3 ||
2046                              terse_version == 4)) {
2047                                 log_err("fio: bad terse version format\n");
2048                                 exit_val = 1;
2049                                 do_exit++;
2050                         }
2051                         break;
2052                 case 'e':
2053                         if (!strcmp("always", optarg))
2054                                 eta_print = FIO_ETA_ALWAYS;
2055                         else if (!strcmp("never", optarg))
2056                                 eta_print = FIO_ETA_NEVER;
2057                         break;
2058                 case 'E': {
2059                         long long t = 0;
2060
2061                         if (check_str_time(optarg, &t, 1)) {
2062                                 log_err("fio: failed parsing eta time %s\n", optarg);
2063                                 exit_val = 1;
2064                                 do_exit++;
2065                         }
2066                         eta_new_line = t / 1000;
2067                         break;
2068                         }
2069                 case 'd':
2070                         if (set_debug(optarg))
2071                                 do_exit++;
2072                         break;
2073                 case 'P':
2074                         did_arg = 1;
2075                         parse_only = 1;
2076                         break;
2077                 case 'x': {
2078                         size_t new_size;
2079
2080                         if (!strcmp(optarg, "global")) {
2081                                 log_err("fio: can't use global as only "
2082                                         "section\n");
2083                                 do_exit++;
2084                                 exit_val = 1;
2085                                 break;
2086                         }
2087                         new_size = (nr_job_sections + 1) * sizeof(char *);
2088                         job_sections = realloc(job_sections, new_size);
2089                         job_sections[nr_job_sections] = strdup(optarg);
2090                         nr_job_sections++;
2091                         break;
2092                         }
2093 #ifdef CONFIG_ZLIB
2094                 case 'X':
2095                         exit_val = iolog_file_inflate(optarg);
2096                         did_arg++;
2097                         do_exit++;
2098                         break;
2099 #endif
2100                 case 'p':
2101                         did_arg = 1;
2102                         if (exec_profile)
2103                                 free(exec_profile);
2104                         exec_profile = strdup(optarg);
2105                         break;
2106                 case FIO_GETOPT_JOB: {
2107                         const char *opt = l_opts[lidx].name;
2108                         char *val = optarg;
2109
2110                         if (!strncmp(opt, "name", 4) && td) {
2111                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2112                                 if (ret)
2113                                         goto out_free;
2114                                 td = NULL;
2115                                 did_arg = 1;
2116                         }
2117                         if (!td) {
2118                                 int is_section = !strncmp(opt, "name", 4);
2119                                 int global = 0;
2120
2121                                 if (!is_section || !strncmp(val, "global", 6))
2122                                         global = 1;
2123
2124                                 if (is_section && skip_this_section(val))
2125                                         continue;
2126
2127                                 td = get_new_job(global, &def_thread, 1, NULL);
2128                                 if (!td || ioengine_load(td)) {
2129                                         if (td) {
2130                                                 put_job(td);
2131                                                 td = NULL;
2132                                         }
2133                                         do_exit++;
2134                                         break;
2135                                 }
2136                                 fio_options_set_ioengine_opts(l_opts, td);
2137                         }
2138
2139                         if ((!val || !strlen(val)) &&
2140                             l_opts[lidx].has_arg == required_argument) {
2141                                 log_err("fio: option %s requires an argument\n", opt);
2142                                 ret = 1;
2143                         } else
2144                                 ret = fio_cmd_option_parse(td, opt, val);
2145
2146                         if (ret) {
2147                                 if (td) {
2148                                         put_job(td);
2149                                         td = NULL;
2150                                 }
2151                                 do_exit++;
2152                         }
2153
2154                         if (!ret && !strcmp(opt, "ioengine")) {
2155                                 free_ioengine(td);
2156                                 if (ioengine_load(td)) {
2157                                         put_job(td);
2158                                         td = NULL;
2159                                         do_exit++;
2160                                         break;
2161                                 }
2162                                 fio_options_set_ioengine_opts(l_opts, td);
2163                         }
2164                         break;
2165                 }
2166                 case FIO_GETOPT_IOENGINE: {
2167                         const char *opt = l_opts[lidx].name;
2168                         char *val = optarg;
2169
2170                         if (!td)
2171                                 break;
2172
2173                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
2174                         break;
2175                 }
2176                 case 'w':
2177                         warnings_fatal = 1;
2178                         break;
2179                 case 'j':
2180                         max_jobs = atoi(optarg);
2181                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2182                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
2183                                 do_exit++;
2184                                 exit_val = 1;
2185                         }
2186                         break;
2187                 case 'S':
2188                         did_arg = 1;
2189 #ifndef CONFIG_NO_SHM
2190                         if (nr_clients) {
2191                                 log_err("fio: can't be both client and server\n");
2192                                 do_exit++;
2193                                 exit_val = 1;
2194                                 break;
2195                         }
2196                         if (optarg)
2197                                 fio_server_set_arg(optarg);
2198                         is_backend = 1;
2199                         backend = 1;
2200 #else
2201                         log_err("fio: client/server requires SHM support\n");
2202                         do_exit++;
2203                         exit_val = 1;
2204 #endif
2205                         break;
2206                 case 'D':
2207                         if (pid_file)
2208                                 free(pid_file);
2209                         pid_file = strdup(optarg);
2210                         break;
2211                 case 'I':
2212                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
2213                                 /* exit on error and calibration only */
2214                                 did_arg = 1;
2215                                 do_exit++;
2216                                 if (ret == -1)
2217                                         exit_val = 1;
2218                         }
2219                         break;
2220                 case 'C':
2221                         did_arg = 1;
2222                         if (is_backend) {
2223                                 log_err("fio: can't be both client and server\n");
2224                                 do_exit++;
2225                                 exit_val = 1;
2226                                 break;
2227                         }
2228                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2229                                 log_err("fio: failed adding client %s\n", optarg);
2230                                 do_exit++;
2231                                 exit_val = 1;
2232                                 break;
2233                         }
2234                         /*
2235                          * If the next argument exists and isn't an option,
2236                          * assume it's a job file for this client only.
2237                          */
2238                         while (optind < argc) {
2239                                 if (!strncmp(argv[optind], "--", 2) ||
2240                                     !strncmp(argv[optind], "-", 1))
2241                                         break;
2242
2243                                 if (fio_client_add_ini_file(cur_client, argv[optind], 0))
2244                                         break;
2245                                 optind++;
2246                         }
2247                         break;
2248                 case 'R':
2249                         did_arg = 1;
2250                         if (fio_client_add_ini_file(cur_client, optarg, 1)) {
2251                                 do_exit++;
2252                                 exit_val = 1;
2253                         }
2254                         break;
2255                 case 'T':
2256                         did_arg = 1;
2257                         do_exit++;
2258                         exit_val = fio_monotonic_clocktest(1);
2259                         break;
2260                 case 'G':
2261                         did_arg = 1;
2262                         do_exit++;
2263                         exit_val = fio_crctest(optarg);
2264                         break;
2265                 case 'L': {
2266                         long long val;
2267
2268                         if (check_str_time(optarg, &val, 1)) {
2269                                 log_err("fio: failed parsing time %s\n", optarg);
2270                                 do_exit++;
2271                                 exit_val = 1;
2272                                 break;
2273                         }
2274                         status_interval = val / 1000;
2275                         break;
2276                         }
2277                 case 'W':
2278                         if (trigger_file)
2279                                 free(trigger_file);
2280                         trigger_file = strdup(optarg);
2281                         break;
2282                 case 'H':
2283                         if (trigger_cmd)
2284                                 free(trigger_cmd);
2285                         trigger_cmd = strdup(optarg);
2286                         break;
2287                 case 'J':
2288                         if (trigger_remote_cmd)
2289                                 free(trigger_remote_cmd);
2290                         trigger_remote_cmd = strdup(optarg);
2291                         break;
2292                 case 'B':
2293                         if (check_str_time(optarg, &trigger_timeout, 1)) {
2294                                 log_err("fio: failed parsing time %s\n", optarg);
2295                                 do_exit++;
2296                                 exit_val = 1;
2297                         }
2298                         trigger_timeout /= 1000000;
2299                         break;
2300                 case '?':
2301                         log_err("%s: unrecognized option '%s'\n", argv[0],
2302                                                         argv[optind - 1]);
2303                         show_closest_option(argv[optind - 1]);
2304                 default:
2305                         do_exit++;
2306                         exit_val = 1;
2307                         break;
2308                 }
2309                 if (do_exit)
2310                         break;
2311         }
2312
2313         if (do_exit && !(is_backend || nr_clients))
2314                 exit(exit_val);
2315
2316         if (nr_clients && fio_clients_connect())
2317                 exit(1);
2318
2319         if (is_backend && backend)
2320                 return fio_start_server(pid_file);
2321         else if (pid_file)
2322                 free(pid_file);
2323
2324         if (td) {
2325                 if (!ret) {
2326                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2327                         if (ret)
2328                                 did_arg = 1;
2329                 }
2330         }
2331
2332         while (!ret && optind < argc) {
2333                 ini_idx++;
2334                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2335                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2336                 optind++;
2337         }
2338
2339 out_free:
2340         if (pid_file)
2341                 free(pid_file);
2342
2343         return ini_idx;
2344 }
2345
2346 int fio_init_options(void)
2347 {
2348         f_out = stdout;
2349         f_err = stderr;
2350
2351         fio_options_fill_optstring();
2352         fio_options_dup_and_init(l_opts);
2353
2354         atexit(free_shm);
2355
2356         if (fill_def_thread())
2357                 return 1;
2358
2359         return 0;
2360 }
2361
2362 extern int fio_check_options(struct thread_options *);
2363
2364 int parse_options(int argc, char *argv[])
2365 {
2366         const int type = FIO_CLIENT_TYPE_CLI;
2367         int job_files, i;
2368
2369         if (fio_init_options())
2370                 return 1;
2371         if (fio_test_cconv(&def_thread.o))
2372                 log_err("fio: failed internal cconv test\n");
2373
2374         job_files = parse_cmd_line(argc, argv, type);
2375
2376         if (job_files > 0) {
2377                 for (i = 0; i < job_files; i++) {
2378                         if (i && fill_def_thread())
2379                                 return 1;
2380                         if (nr_clients) {
2381                                 if (fio_clients_send_ini(ini_file[i]))
2382                                         return 1;
2383                                 free(ini_file[i]);
2384                         } else if (!is_backend) {
2385                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2386                                         return 1;
2387                                 free(ini_file[i]);
2388                         }
2389                 }
2390         } else if (nr_clients) {
2391                 if (fill_def_thread())
2392                         return 1;
2393                 if (fio_clients_send_ini(NULL))
2394                         return 1;
2395         }
2396
2397         free(ini_file);
2398         fio_options_free(&def_thread);
2399         filesetup_mem_free();
2400
2401         if (!thread_number) {
2402                 if (parse_dryrun())
2403                         return 0;
2404                 if (exec_profile)
2405                         return 0;
2406                 if (is_backend || nr_clients)
2407                         return 0;
2408                 if (did_arg)
2409                         return 0;
2410
2411                 log_err("No jobs(s) defined\n\n");
2412
2413                 if (!did_arg) {
2414                         usage(argv[0]);
2415                         return 1;
2416                 }
2417
2418                 return 0;
2419         }
2420
2421         if (output_format == FIO_OUTPUT_NORMAL)
2422                 log_info("%s\n", fio_version_string);
2423
2424         return 0;
2425 }
2426
2427 void options_default_fill(struct thread_options *o)
2428 {
2429         memcpy(o, &def_thread.o, sizeof(*o));
2430 }