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 eta_print = FIO_ETA_AUTO;
  52 int eta_new_line = 0;
  53 FILE *f_out = NULL;
  54 FILE *f_err = NULL;
  55 char *exec_profile = NULL;
  56 int warnings_fatal = 0;
  57 int terse_version = 3;
  58 int is_backend = 0;
  59 int nr_clients = 0;
  60 int log_syslog = 0;
  61
  62 int write_bw_log = 0;
  63 int read_only = 0;
  64 int status_interval = 0;
  65
  66 char *trigger_file = NULL;
  67 long long trigger_timeout = 0;
  68 char *trigger_cmd = NULL;
  69 char *trigger_remote_cmd = NULL;
  70
  71 char *aux_path = NULL;
  72
  73 static int prev_group_jobs;
  74
  75 unsigned long fio_debug = 0;
  76 unsigned int fio_debug_jobno = -1;
  77 unsigned int *fio_debug_jobp = NULL;
  78
  79 static char cmd_optstr[256];
  80 static int did_arg;
  81
  82 #define FIO_CLIENT_FLAG         (1 << 16)
  83
  84 /*
  85  * Command line options. These will contain the above, plus a few
  86  * extra that only pertain to fio itself and not jobs.
  87  */
  88 static struct option l_opts[FIO_NR_OPTIONS] = {
  89         {
  90                 .name           = (char *) "output",
  91                 .has_arg        = required_argument,
  92                 .val            = 'o' | FIO_CLIENT_FLAG,
  93         },
  94         {
  95                 .name           = (char *) "timeout",
  96                 .has_arg        = required_argument,
  97                 .val            = 't' | FIO_CLIENT_FLAG,
  98         },
  99         {
 100                 .name           = (char *) "latency-log",
 101                 .has_arg        = required_argument,
 102                 .val            = 'l' | FIO_CLIENT_FLAG,
 103         },
 104         {
 105                 .name           = (char *) "bandwidth-log",
 106                 .has_arg        = required_argument,
 107                 .val            = 'b' | FIO_CLIENT_FLAG,
 108         },
 109         {
 110                 .name           = (char *) "minimal",
 111                 .has_arg        = no_argument,
 112                 .val            = 'm' | FIO_CLIENT_FLAG,
 113         },
 114         {
 115                 .name           = (char *) "output-format",
 116                 .has_arg        = optional_argument,
 117                 .val            = 'F' | FIO_CLIENT_FLAG,
 118         },
 119         {
 120                 .name           = (char *) "append-terse",
 121                 .has_arg        = optional_argument,
 122                 .val            = 'f',
 123         },
 124         {
 125                 .name           = (char *) "version",
 126                 .has_arg        = no_argument,
 127                 .val            = 'v' | FIO_CLIENT_FLAG,
 128         },
 129         {
 130                 .name           = (char *) "help",
 131                 .has_arg        = no_argument,
 132                 .val            = 'h' | FIO_CLIENT_FLAG,
 133         },
 134         {
 135                 .name           = (char *) "cmdhelp",
 136                 .has_arg        = optional_argument,
 137                 .val            = 'c' | FIO_CLIENT_FLAG,
 138         },
 139         {
 140                 .name           = (char *) "enghelp",
 141                 .has_arg        = optional_argument,
 142                 .val            = 'i' | FIO_CLIENT_FLAG,
 143         },
 144         {
 145                 .name           = (char *) "showcmd",
 146                 .has_arg        = no_argument,
 147                 .val            = 's' | FIO_CLIENT_FLAG,
 148         },
 149         {
 150                 .name           = (char *) "readonly",
 151                 .has_arg        = no_argument,
 152                 .val            = 'r' | FIO_CLIENT_FLAG,
 153         },
 154         {
 155                 .name           = (char *) "eta",
 156                 .has_arg        = required_argument,
 157                 .val            = 'e' | FIO_CLIENT_FLAG,
 158         },
 159         {
 160                 .name           = (char *) "eta-newline",
 161                 .has_arg        = required_argument,
 162                 .val            = 'E' | FIO_CLIENT_FLAG,
 163         },
 164         {
 165                 .name           = (char *) "debug",
 166                 .has_arg        = required_argument,
 167                 .val            = 'd' | FIO_CLIENT_FLAG,
 168         },
 169         {
 170                 .name           = (char *) "parse-only",
 171                 .has_arg        = no_argument,
 172                 .val            = 'P' | FIO_CLIENT_FLAG,
 173         },
 174         {
 175                 .name           = (char *) "section",
 176                 .has_arg        = required_argument,
 177                 .val            = 'x' | FIO_CLIENT_FLAG,
 178         },
 179 #ifdef CONFIG_ZLIB
 180         {
 181                 .name           = (char *) "inflate-log",
 182                 .has_arg        = required_argument,
 183                 .val            = 'X' | FIO_CLIENT_FLAG,
 184         },
 185 #endif
 186         {
 187                 .name           = (char *) "alloc-size",
 188                 .has_arg        = required_argument,
 189                 .val            = 'a' | FIO_CLIENT_FLAG,
 190         },
 191         {
 192                 .name           = (char *) "profile",
 193                 .has_arg        = required_argument,
 194                 .val            = 'p' | FIO_CLIENT_FLAG,
 195         },
 196         {
 197                 .name           = (char *) "warnings-fatal",
 198                 .has_arg        = no_argument,
 199                 .val            = 'w' | FIO_CLIENT_FLAG,
 200         },
 201         {
 202                 .name           = (char *) "max-jobs",
 203                 .has_arg        = required_argument,
 204                 .val            = 'j' | FIO_CLIENT_FLAG,
 205         },
 206         {
 207                 .name           = (char *) "terse-version",
 208                 .has_arg        = required_argument,
 209                 .val            = 'V' | FIO_CLIENT_FLAG,
 210         },
 211         {
 212                 .name           = (char *) "server",
 213                 .has_arg        = optional_argument,
 214                 .val            = 'S',
 215         },
 216         {       .name           = (char *) "daemonize",
 217                 .has_arg        = required_argument,
 218                 .val            = 'D',
 219         },
 220         {
 221                 .name           = (char *) "client",
 222                 .has_arg        = required_argument,
 223                 .val            = 'C',
 224         },
 225         {
 226                 .name           = (char *) "remote-config",
 227                 .has_arg        = required_argument,
 228                 .val            = 'R',
 229         },
 230         {
 231                 .name           = (char *) "cpuclock-test",
 232                 .has_arg        = no_argument,
 233                 .val            = 'T',
 234         },
 235         {
 236                 .name           = (char *) "crctest",
 237                 .has_arg        = optional_argument,
 238                 .val            = 'G',
 239         },
 240         {
 241                 .name           = (char *) "idle-prof",
 242                 .has_arg        = required_argument,
 243                 .val            = 'I',
 244         },
 245         {
 246                 .name           = (char *) "status-interval",
 247                 .has_arg        = required_argument,
 248                 .val            = 'L',
 249         },
 250         {
 251                 .name           = (char *) "trigger-file",
 252                 .has_arg        = required_argument,
 253                 .val            = 'W',
 254         },
 255         {
 256                 .name           = (char *) "trigger-timeout",
 257                 .has_arg        = required_argument,
 258                 .val            = 'B',
 259         },
 260         {
 261                 .name           = (char *) "trigger",
 262                 .has_arg        = required_argument,
 263                 .val            = 'H',
 264         },
 265         {
 266                 .name           = (char *) "trigger-remote",
 267                 .has_arg        = required_argument,
 268                 .val            = 'J',
 269         },
 270         {
 271                 .name           = (char *) "aux-path",
 272                 .has_arg        = required_argument,
 273                 .val            = 'K',
 274         },
 275         {
 276                 .name           = NULL,
 277         },
 278 };
 279
 280 void free_threads_shm(void)
 281 {
 282         if (threads) {
 283                 void *tp = threads;
 284 #ifndef CONFIG_NO_SHM
 285                 struct shmid_ds sbuf;
 286
 287                 threads = NULL;
 288                 shmdt(tp);
 289                 shmctl(shm_id, IPC_RMID, &sbuf);
 290                 shm_id = -1;
 291 #else
 292                 threads = NULL;
 293                 free(tp);
 294 #endif
 295         }
 296 }
 297
 298 static void free_shm(void)
 299 {
 300         if (threads) {
 301                 file_hash_exit();
 302                 flow_exit();
 303                 fio_debug_jobp = NULL;
 304                 free_threads_shm();
 305         }
 306
 307         free(trigger_file);
 308         free(trigger_cmd);
 309         free(trigger_remote_cmd);
 310         trigger_file = trigger_cmd = trigger_remote_cmd = NULL;
 311
 312         options_free(fio_options, &def_thread);
 313         fio_filelock_exit();
 314         scleanup();
 315 }
 316
 317 /*
 318  * The thread area is shared between the main process and the job
 319  * threads/processes. So setup a shared memory segment that will hold
 320  * all the job info. We use the end of the region for keeping track of
 321  * open files across jobs, for file sharing.
 322  */
 323 static int setup_thread_area(void)
 324 {
 325         void *hash;
 326
 327         if (threads)
 328                 return 0;
 329
 330         /*
 331          * 1024 is too much on some machines, scale max_jobs if
 332          * we get a failure that looks like too large a shm segment
 333          */
 334         do {
 335                 size_t size = max_jobs * sizeof(struct thread_data);
 336
 337                 size += file_hash_size;
 338                 size += sizeof(unsigned int);
 339
 340 #ifndef CONFIG_NO_SHM
 341                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 342                 if (shm_id != -1)
 343                         break;
 344                 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
 345                         perror("shmget");
 346                         break;
 347                 }
 348 #else
 349                 threads = malloc(size);
 350                 if (threads)
 351                         break;
 352 #endif
 353
 354                 max_jobs >>= 1;
 355         } while (max_jobs);
 356
 357 #ifndef CONFIG_NO_SHM
 358         if (shm_id == -1)
 359                 return 1;
 360
 361         threads = shmat(shm_id, NULL, 0);
 362         if (threads == (void *) -1) {
 363                 perror("shmat");
 364                 return 1;
 365         }
 366 #endif
 367
 368         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 369         hash = (void *) threads + max_jobs * sizeof(struct thread_data);
 370         fio_debug_jobp = (void *) hash + file_hash_size;
 371         *fio_debug_jobp = -1;
 372         file_hash_init(hash);
 373
 374         flow_init();
 375
 376         return 0;
 377 }
 378
 379 static void set_cmd_options(struct thread_data *td)
 380 {
 381         struct thread_options *o = &td->o;
 382
 383         if (!o->timeout)
 384                 o->timeout = def_timeout;
 385 }
 386
 387 /*
 388  * Return a free job structure.
 389  */
 390 static struct thread_data *get_new_job(int global, struct thread_data *parent,
 391                                        int preserve_eo, const char *jobname)
 392 {
 393         struct thread_data *td;
 394
 395         if (global) {
 396                 set_cmd_options(&def_thread);
 397                 return &def_thread;
 398         }
 399         if (setup_thread_area()) {
 400                 log_err("error: failed to setup shm segment\n");
 401                 return NULL;
 402         }
 403         if (thread_number >= max_jobs) {
 404                 log_err("error: maximum number of jobs (%d) reached.\n",
 405                                 max_jobs);
 406                 return NULL;
 407         }
 408
 409         td = &threads[thread_number++];
 410         *td = *parent;
 411
 412         td->io_ops = NULL;
 413         if (!preserve_eo)
 414                 td->eo = NULL;
 415
 416         td->o.uid = td->o.gid = -1U;
 417
 418         dup_files(td, parent);
 419         fio_options_mem_dupe(td);
 420
 421         profile_add_hooks(td);
 422
 423         td->thread_number = thread_number;
 424         td->subjob_number = 0;
 425
 426         if (jobname)
 427                 td->o.name = strdup(jobname);
 428
 429         if (!parent->o.group_reporting)
 430                 stat_number++;
 431
 432         set_cmd_options(td);
 433         return td;
 434 }
 435
 436 static void put_job(struct thread_data *td)
 437 {
 438         if (td == &def_thread)
 439                 return;
 440
 441         profile_td_exit(td);
 442         flow_exit_job(td);
 443
 444         if (td->error)
 445                 log_info("fio: %s\n", td->verror);
 446
 447         fio_options_free(td);
 448         if (td->io_ops)
 449                 free_ioengine(td);
 450
 451         if (td->o.name)
 452                 free(td->o.name);
 453
 454         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 455         thread_number--;
 456 }
 457
 458 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 459 {
 460         unsigned int bs = td->o.min_bs[ddir];
 461
 462         assert(ddir_rw(ddir));
 463
 464         if (td->o.rate[ddir])
 465                 td->rate_bps[ddir] = td->o.rate[ddir];
 466         else
 467                 td->rate_bps[ddir] = (uint64_t) td->o.rate_iops[ddir] * bs;
 468
 469         if (!td->rate_bps[ddir]) {
 470                 log_err("rate lower than supported\n");
 471                 return -1;
 472         }
 473
 474         td->rate_next_io_time[ddir] = 0;
 475         td->rate_io_issue_bytes[ddir] = 0;
 476         td->last_usec = 0;
 477         return 0;
 478 }
 479
 480 static int setup_rate(struct thread_data *td)
 481 {
 482         int ret = 0;
 483
 484         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
 485                 ret = __setup_rate(td, DDIR_READ);
 486         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
 487                 ret |= __setup_rate(td, DDIR_WRITE);
 488         if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
 489                 ret |= __setup_rate(td, DDIR_TRIM);
 490
 491         return ret;
 492 }
 493
 494 static int fixed_block_size(struct thread_options *o)
 495 {
 496         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 497                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 498                 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
 499                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
 500                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
 501 }
 502
 503
 504 static unsigned long long get_rand_start_delay(struct thread_data *td)
 505 {
 506         unsigned long long delayrange;
 507         uint64_t frand_max;
 508         unsigned long r;
 509
 510         delayrange = td->o.start_delay_high - td->o.start_delay;
 511
 512         frand_max = rand_max(&td->delay_state);
 513         r = __rand(&td->delay_state);
 514         delayrange = (unsigned long long) ((double) delayrange * (r / (frand_max + 1.0)));
 515
 516         delayrange += td->o.start_delay;
 517         return delayrange;
 518 }
 519
 520 /*
 521  * Lazy way of fixing up options that depend on each other. We could also
 522  * define option callback handlers, but this is easier.
 523  */
 524 static int fixup_options(struct thread_data *td)
 525 {
 526         struct thread_options *o = &td->o;
 527         int ret = 0;
 528
 529 #ifndef FIO_HAVE_PSHARED_MUTEX
 530         if (!o->use_thread) {
 531                 log_info("fio: this platform does not support process shared"
 532                          " mutexes, forcing use of threads. Use the 'thread'"
 533                          " option to get rid of this warning.\n");
 534                 o->use_thread = 1;
 535                 ret = warnings_fatal;
 536         }
 537 #endif
 538
 539         if (o->write_iolog_file && o->read_iolog_file) {
 540                 log_err("fio: read iolog overrides write_iolog\n");
 541                 free(o->write_iolog_file);
 542                 o->write_iolog_file = NULL;
 543                 ret = warnings_fatal;
 544         }
 545
 546         /*
 547          * only really works with 1 file
 548          */
 549         if (o->zone_size && o->open_files > 1)
 550                 o->zone_size = 0;
 551
 552         /*
 553          * If zone_range isn't specified, backward compatibility dictates it
 554          * should be made equal to zone_size.
 555          */
 556         if (o->zone_size && !o->zone_range)
 557                 o->zone_range = o->zone_size;
 558
 559         /*
 560          * Reads can do overwrites, we always need to pre-create the file
 561          */
 562         if (td_read(td) || td_rw(td))
 563                 o->overwrite = 1;
 564
 565         if (!o->min_bs[DDIR_READ])
 566                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
 567         if (!o->max_bs[DDIR_READ])
 568                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 569         if (!o->min_bs[DDIR_WRITE])
 570                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 571         if (!o->max_bs[DDIR_WRITE])
 572                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 573         if (!o->min_bs[DDIR_TRIM])
 574                 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 575         if (!o->max_bs[DDIR_TRIM])
 576                 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 577
 578         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 579         o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
 580
 581         /*
 582          * For random IO, allow blockalign offset other than min_bs.
 583          */
 584         if (!o->ba[DDIR_READ] || !td_random(td))
 585                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
 586         if (!o->ba[DDIR_WRITE] || !td_random(td))
 587                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
 588         if (!o->ba[DDIR_TRIM] || !td_random(td))
 589                 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
 590
 591         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 592             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
 593             o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
 594             !o->norandommap) {
 595                 log_err("fio: Any use of blockalign= turns off randommap\n");
 596                 o->norandommap = 1;
 597                 ret = warnings_fatal;
 598         }
 599
 600         if (!o->file_size_high)
 601                 o->file_size_high = o->file_size_low;
 602
 603         if (o->start_delay_high)
 604                 o->start_delay = get_rand_start_delay(td);
 605
 606         if (o->norandommap && o->verify != VERIFY_NONE
 607             && !fixed_block_size(o))  {
 608                 log_err("fio: norandommap given for variable block sizes, "
 609                         "verify limited\n");
 610                 ret = warnings_fatal;
 611         }
 612         if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
 613                 log_err("fio: bs_unaligned may not work with raw io\n");
 614
 615         /*
 616          * thinktime_spin must be less than thinktime
 617          */
 618         if (o->thinktime_spin > o->thinktime)
 619                 o->thinktime_spin = o->thinktime;
 620
 621         /*
 622          * The low water mark cannot be bigger than the iodepth
 623          */
 624         if (o->iodepth_low > o->iodepth || !o->iodepth_low)
 625                 o->iodepth_low = o->iodepth;
 626
 627         /*
 628          * If batch number isn't set, default to the same as iodepth
 629          */
 630         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 631                 o->iodepth_batch = o->iodepth;
 632
 633         /*
 634          * If max batch complete number isn't set or set incorrectly,
 635          * default to the same as iodepth_batch_complete_min
 636          */
 637         if (o->iodepth_batch_complete_min > o->iodepth_batch_complete_max)
 638                 o->iodepth_batch_complete_max = o->iodepth_batch_complete_min;
 639
 640         if (o->nr_files > td->files_index)
 641                 o->nr_files = td->files_index;
 642
 643         if (o->open_files > o->nr_files || !o->open_files)
 644                 o->open_files = o->nr_files;
 645
 646         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
 647             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
 648             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 649             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 650                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 651                 ret = 1;
 652         }
 653         if ((o->rate[DDIR_READ] && (o->rate[DDIR_READ] < o->ratemin[DDIR_READ])) ||
 654             (o->rate[DDIR_WRITE] && (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE])) ||
 655             (o->rate[DDIR_TRIM] && (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM])) ||
 656             (o->rate_iops[DDIR_READ] && (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ])) ||
 657             (o->rate_iops[DDIR_WRITE] && (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE])) ||
 658             (o->rate_iops[DDIR_TRIM] && (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM]))) {
 659                 log_err("fio: minimum rate exceeds rate\n");
 660                 ret = 1;
 661         }
 662
 663         if (!o->timeout && o->time_based) {
 664                 log_err("fio: time_based requires a runtime/timeout setting\n");
 665                 o->time_based = 0;
 666                 ret = warnings_fatal;
 667         }
 668
 669         if (o->fill_device && !o->size)
 670                 o->size = -1ULL;
 671
 672         if (o->verify != VERIFY_NONE) {
 673                 if (td_write(td) && o->do_verify && o->numjobs > 1) {
 674                         log_info("Multiple writers may overwrite blocks that "
 675                                 "belong to other jobs. This can cause "
 676                                 "verification failures.\n");
 677                         ret = warnings_fatal;
 678                 }
 679
 680                 if (!fio_option_is_set(o, refill_buffers))
 681                         o->refill_buffers = 1;
 682
 683                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 684                     !o->verify_interval)
 685                         o->verify_interval = o->min_bs[DDIR_WRITE];
 686
 687                 /*
 688                  * Verify interval must be smaller or equal to the
 689                  * write size.
 690                  */
 691                 if (o->verify_interval > o->min_bs[DDIR_WRITE])
 692                         o->verify_interval = o->min_bs[DDIR_WRITE];
 693                 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
 694                         o->verify_interval = o->min_bs[DDIR_READ];
 695         }
 696
 697         if (o->pre_read) {
 698                 o->invalidate_cache = 0;
 699                 if (td->io_ops->flags & FIO_PIPEIO) {
 700                         log_info("fio: cannot pre-read files with an IO engine"
 701                                  " that isn't seekable. Pre-read disabled.\n");
 702                         ret = warnings_fatal;
 703                 }
 704         }
 705
 706         if (!o->unit_base) {
 707                 if (td->io_ops->flags & FIO_BIT_BASED)
 708                         o->unit_base = 1;
 709                 else
 710                         o->unit_base = 8;
 711         }
 712
 713 #ifndef CONFIG_FDATASYNC
 714         if (o->fdatasync_blocks) {
 715                 log_info("fio: this platform does not support fdatasync()"
 716                          " falling back to using fsync().  Use the 'fsync'"
 717                          " option instead of 'fdatasync' to get rid of"
 718                          " this warning\n");
 719                 o->fsync_blocks = o->fdatasync_blocks;
 720                 o->fdatasync_blocks = 0;
 721                 ret = warnings_fatal;
 722         }
 723 #endif
 724
 725 #ifdef WIN32
 726         /*
 727          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 728          * so fail if we're passed those flags
 729          */
 730         if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
 731                 log_err("fio: Windows does not support direct or non-buffered io with"
 732                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 733                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 734                 ret = 1;
 735         }
 736 #endif
 737
 738         /*
 739          * For fully compressible data, just zero them at init time.
 740          * It's faster than repeatedly filling it.
 741          */
 742         if (td->o.compress_percentage == 100) {
 743                 td->o.zero_buffers = 1;
 744                 td->o.compress_percentage = 0;
 745         }
 746
 747         /*
 748          * Using a non-uniform random distribution excludes usage of
 749          * a random map
 750          */
 751         if (td->o.random_distribution != FIO_RAND_DIST_RANDOM)
 752                 td->o.norandommap = 1;
 753
 754         /*
 755          * If size is set but less than the min block size, complain
 756          */
 757         if (o->size && o->size < td_min_bs(td)) {
 758                 log_err("fio: size too small, must be larger than the IO size: %llu\n", (unsigned long long) o->size);
 759                 ret = 1;
 760         }
 761
 762         /*
 763          * O_ATOMIC implies O_DIRECT
 764          */
 765         if (td->o.oatomic)
 766                 td->o.odirect = 1;
 767
 768         /*
 769          * If randseed is set, that overrides randrepeat
 770          */
 771         if (fio_option_is_set(&td->o, rand_seed))
 772                 td->o.rand_repeatable = 0;
 773
 774         if ((td->io_ops->flags & FIO_NOEXTEND) && td->o.file_append) {
 775                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
 776                 ret = 1;
 777         }
 778
 779         if (fio_option_is_set(o, gtod_cpu)) {
 780                 fio_gtod_init();
 781                 fio_gtod_set_cpu(o->gtod_cpu);
 782                 fio_gtod_offload = 1;
 783         }
 784
 785         td->loops = o->loops;
 786         if (!td->loops)
 787                 td->loops = 1;
 788
 789         if (td->o.block_error_hist && td->o.nr_files != 1) {
 790                 log_err("fio: block error histogram only available with "
 791                         "with a single file per job, but %d files "
 792                         "provided\n", td->o.nr_files);
 793                 ret = 1;
 794         }
 795
 796         return ret;
 797 }
 798
 799 /*
 800  * This function leaks the buffer
 801  */
 802 char *fio_uint_to_kmg(unsigned int val)
 803 {
 804         char *buf = malloc(32);
 805         char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
 806         char *p = post;
 807
 808         do {
 809                 if (val & 1023)
 810                         break;
 811
 812                 val >>= 10;
 813                 p++;
 814         } while (*p);
 815
 816         snprintf(buf, 32, "%u%c", val, *p);
 817         return buf;
 818 }
 819
 820 /* External engines are specified by "external:name.o") */
 821 static const char *get_engine_name(const char *str)
 822 {
 823         char *p = strstr(str, ":");
 824
 825         if (!p)
 826                 return str;
 827
 828         p++;
 829         strip_blank_front(&p);
 830         strip_blank_end(p);
 831         return p;
 832 }
 833
 834 static int exists_and_not_file(const char *filename)
 835 {
 836         struct stat sb;
 837
 838         if (lstat(filename, &sb) == -1)
 839                 return 0;
 840
 841         /* \\.\ is the device namespace in Windows, where every file
 842          * is a device node */
 843         if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
 844                 return 0;
 845
 846         return 1;
 847 }
 848
 849 static void td_fill_rand_seeds_internal(struct thread_data *td, int use64)
 850 {
 851         init_rand_seed(&td->bsrange_state, td->rand_seeds[FIO_RAND_BS_OFF], use64);
 852         init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF], use64);
 853         init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], use64);
 854
 855         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 856                 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF], use64);
 857
 858         init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], use64);
 859         init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF], use64);
 860         init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY], use64);
 861         init_rand_seed(&td->poisson_state, td->rand_seeds[FIO_RAND_POISSON_OFF], 0);
 862
 863         if (!td_random(td))
 864                 return;
 865
 866         if (td->o.rand_repeatable)
 867                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
 868
 869         init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF], use64);
 870         init_rand_seed(&td->seq_rand_state[DDIR_READ], td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], use64);
 871         init_rand_seed(&td->seq_rand_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_SEQ_RAND_WRITE_OFF], use64);
 872         init_rand_seed(&td->seq_rand_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_SEQ_RAND_TRIM_OFF], use64);
 873 }
 874
 875 void td_fill_rand_seeds(struct thread_data *td)
 876 {
 877         int use64;
 878
 879         if (td->o.allrand_repeatable) {
 880                 unsigned int i;
 881
 882                 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
 883                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
 884                                 + i;
 885         }
 886
 887         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
 888                 use64 = 1;
 889         else
 890                 use64 = 0;
 891
 892         td_fill_rand_seeds_internal(td, use64);
 893
 894         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF], use64);
 895         frand_copy(&td->buf_state_prev, &td->buf_state);
 896
 897         init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF], use64);
 898 }
 899
 900 /*
 901  * Initializes the ioengine configured for a job, if it has not been done so
 902  * already.
 903  */
 904 int ioengine_load(struct thread_data *td)
 905 {
 906         const char *engine;
 907
 908         /*
 909          * Engine has already been loaded.
 910          */
 911         if (td->io_ops)
 912                 return 0;
 913         if (!td->o.ioengine) {
 914                 log_err("fio: internal fault, no IO engine specified\n");
 915                 return 1;
 916         }
 917
 918         engine = get_engine_name(td->o.ioengine);
 919         td->io_ops = load_ioengine(td, engine);
 920         if (!td->io_ops) {
 921                 log_err("fio: failed to load engine %s\n", engine);
 922                 return 1;
 923         }
 924
 925         if (td->io_ops->option_struct_size && td->io_ops->options) {
 926                 /*
 927                  * In cases where td->eo is set, clone it for a child thread.
 928                  * This requires that the parent thread has the same ioengine,
 929                  * but that requirement must be enforced by the code which
 930                  * cloned the thread.
 931                  */
 932                 void *origeo = td->eo;
 933                 /*
 934                  * Otherwise use the default thread options.
 935                  */
 936                 if (!origeo && td != &def_thread && def_thread.eo &&
 937                     def_thread.io_ops->options == td->io_ops->options)
 938                         origeo = def_thread.eo;
 939
 940                 options_init(td->io_ops->options);
 941                 td->eo = malloc(td->io_ops->option_struct_size);
 942                 /*
 943                  * Use the default thread as an option template if this uses the
 944                  * same options structure and there are non-default options
 945                  * used.
 946                  */
 947                 if (origeo) {
 948                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
 949                         options_mem_dupe(td->eo, td->io_ops->options);
 950                 } else {
 951                         memset(td->eo, 0, td->io_ops->option_struct_size);
 952                         fill_default_options(td->eo, td->io_ops->options);
 953                 }
 954                 *(struct thread_data **)td->eo = td;
 955         }
 956
 957         return 0;
 958 }
 959
 960 static void init_flags(struct thread_data *td)
 961 {
 962         struct thread_options *o = &td->o;
 963
 964         if (o->verify_backlog)
 965                 td->flags |= TD_F_VER_BACKLOG;
 966         if (o->trim_backlog)
 967                 td->flags |= TD_F_TRIM_BACKLOG;
 968         if (o->read_iolog_file)
 969                 td->flags |= TD_F_READ_IOLOG;
 970         if (o->refill_buffers)
 971                 td->flags |= TD_F_REFILL_BUFFERS;
 972         /*
 973          * Always scramble buffers if asked to
 974          */
 975         if (o->scramble_buffers && fio_option_is_set(o, scramble_buffers))
 976                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
 977         /*
 978          * But also scramble buffers, unless we were explicitly asked
 979          * to zero them.
 980          */
 981         if (o->scramble_buffers && !(o->zero_buffers &&
 982             fio_option_is_set(o, zero_buffers)))
 983                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
 984         if (o->verify != VERIFY_NONE)
 985                 td->flags |= TD_F_VER_NONE;
 986
 987         if (o->verify_async || o->io_submit_mode == IO_MODE_OFFLOAD)
 988                 td->flags |= TD_F_NEED_LOCK;
 989 }
 990
 991 static int setup_random_seeds(struct thread_data *td)
 992 {
 993         unsigned long seed;
 994         unsigned int i;
 995
 996         if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed))
 997                 return init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds));
 998
 999         seed = td->o.rand_seed;
1000         for (i = 0; i < 4; i++)
1001                 seed *= 0x9e370001UL;
1002
1003         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
1004                 td->rand_seeds[i] = seed;
1005                 seed *= 0x9e370001UL;
1006         }
1007
1008         td_fill_rand_seeds(td);
1009         return 0;
1010 }
1011
1012 enum {
1013         FPRE_NONE = 0,
1014         FPRE_JOBNAME,
1015         FPRE_JOBNUM,
1016         FPRE_FILENUM
1017 };
1018
1019 static struct fpre_keyword {
1020         const char *keyword;
1021         size_t strlen;
1022         int key;
1023 } fpre_keywords[] = {
1024         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
1025         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
1026         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
1027         { .keyword = NULL, },
1028         };
1029
1030 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
1031                            const char *jobname, int jobnum, int filenum)
1032 {
1033         struct fpre_keyword *f;
1034         char copy[PATH_MAX];
1035         size_t dst_left = PATH_MAX - 1;
1036
1037         if (!o->filename_format || !strlen(o->filename_format)) {
1038                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
1039                 return NULL;
1040         }
1041
1042         for (f = &fpre_keywords[0]; f->keyword; f++)
1043                 f->strlen = strlen(f->keyword);
1044
1045         buf[buf_size - 1] = '\0';
1046         strncpy(buf, o->filename_format, buf_size - 1);
1047
1048         memset(copy, 0, sizeof(copy));
1049         for (f = &fpre_keywords[0]; f->keyword; f++) {
1050                 do {
1051                         size_t pre_len, post_start = 0;
1052                         char *str, *dst = copy;
1053
1054                         str = strcasestr(buf, f->keyword);
1055                         if (!str)
1056                                 break;
1057
1058                         pre_len = str - buf;
1059                         if (strlen(str) != f->strlen)
1060                                 post_start = pre_len + f->strlen;
1061
1062                         if (pre_len) {
1063                                 strncpy(dst, buf, pre_len);
1064                                 dst += pre_len;
1065                                 dst_left -= pre_len;
1066                         }
1067
1068                         switch (f->key) {
1069                         case FPRE_JOBNAME: {
1070                                 int ret;
1071
1072                                 ret = snprintf(dst, dst_left, "%s", jobname);
1073                                 if (ret < 0)
1074                                         break;
1075                                 else if (ret > dst_left) {
1076                                         log_err("fio: truncated filename\n");
1077                                         dst += dst_left;
1078                                         dst_left = 0;
1079                                 } else {
1080                                         dst += ret;
1081                                         dst_left -= ret;
1082                                 }
1083                                 break;
1084                                 }
1085                         case FPRE_JOBNUM: {
1086                                 int ret;
1087
1088                                 ret = snprintf(dst, dst_left, "%d", jobnum);
1089                                 if (ret < 0)
1090                                         break;
1091                                 else if (ret > dst_left) {
1092                                         log_err("fio: truncated filename\n");
1093                                         dst += dst_left;
1094                                         dst_left = 0;
1095                                 } else {
1096                                         dst += ret;
1097                                         dst_left -= ret;
1098                                 }
1099                                 break;
1100                                 }
1101                         case FPRE_FILENUM: {
1102                                 int ret;
1103
1104                                 ret = snprintf(dst, dst_left, "%d", filenum);
1105                                 if (ret < 0)
1106                                         break;
1107                                 else if (ret > dst_left) {
1108                                         log_err("fio: truncated filename\n");
1109                                         dst += dst_left;
1110                                         dst_left = 0;
1111                                 } else {
1112                                         dst += ret;
1113                                         dst_left -= ret;
1114                                 }
1115                                 break;
1116                                 }
1117                         default:
1118                                 assert(0);
1119                                 break;
1120                         }
1121
1122                         if (post_start)
1123                                 strncpy(dst, buf + post_start, dst_left);
1124
1125                         strncpy(buf, copy, buf_size - 1);
1126                 } while (1);
1127         }
1128
1129         return buf;
1130 }
1131
1132 int parse_dryrun(void)
1133 {
1134         return dump_cmdline || parse_only;
1135 }
1136
1137 static void gen_log_name(char *name, size_t size, const char *logtype,
1138                          const char *logname, unsigned int num,
1139                          const char *suf, int per_job)
1140 {
1141         if (per_job)
1142                 snprintf(name, size, "%s_%s.%d.%s", logname, logtype, num, suf);
1143         else
1144                 snprintf(name, size, "%s_%s.%s", logname, logtype, suf);
1145 }
1146
1147 /*
1148  * Adds a job to the list of things todo. Sanitizes the various options
1149  * to make sure we don't have conflicts, and initializes various
1150  * members of td.
1151  */
1152 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1153                    int recursed, int client_type)
1154 {
1155         unsigned int i;
1156         char fname[PATH_MAX];
1157         int numjobs, file_alloced;
1158         struct thread_options *o = &td->o;
1159         char logname[PATH_MAX + 32];
1160
1161         /*
1162          * the def_thread is just for options, it's not a real job
1163          */
1164         if (td == &def_thread)
1165                 return 0;
1166
1167         init_flags(td);
1168
1169         /*
1170          * if we are just dumping the output command line, don't add the job
1171          */
1172         if (parse_dryrun()) {
1173                 put_job(td);
1174                 return 0;
1175         }
1176
1177         td->client_type = client_type;
1178
1179         if (profile_td_init(td))
1180                 goto err;
1181
1182         if (ioengine_load(td))
1183                 goto err;
1184
1185         if (o->odirect)
1186                 td->io_ops->flags |= FIO_RAWIO;
1187
1188         file_alloced = 0;
1189         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1190                 file_alloced = 1;
1191
1192                 if (o->nr_files == 1 && exists_and_not_file(jobname))
1193                         add_file(td, jobname, job_add_num, 0);
1194                 else {
1195                         for (i = 0; i < o->nr_files; i++)
1196                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1197                 }
1198         }
1199
1200         if (fixup_options(td))
1201                 goto err;
1202
1203         flow_init_job(td);
1204
1205         /*
1206          * IO engines only need this for option callbacks, and the address may
1207          * change in subprocesses.
1208          */
1209         if (td->eo)
1210                 *(struct thread_data **)td->eo = NULL;
1211
1212         if (td->io_ops->flags & FIO_DISKLESSIO) {
1213                 struct fio_file *f;
1214
1215                 for_each_file(td, f, i)
1216                         f->real_file_size = -1ULL;
1217         }
1218
1219         td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
1220
1221         td->ts.clat_percentiles = o->clat_percentiles;
1222         td->ts.percentile_precision = o->percentile_precision;
1223         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1224
1225         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1226                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1227                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1228                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1229                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1230         }
1231         td->ddir_seq_nr = o->ddir_seq_nr;
1232
1233         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1234                 prev_group_jobs = 0;
1235                 groupid++;
1236                 if (groupid == INT_MAX) {
1237                         log_err("fio: too many groups defined\n");
1238                         goto err;
1239                 }
1240         }
1241
1242         td->groupid = groupid;
1243         prev_group_jobs++;
1244
1245         if (setup_random_seeds(td)) {
1246                 td_verror(td, errno, "init_random_state");
1247                 goto err;
1248         }
1249
1250         if (setup_rate(td))
1251                 goto err;
1252
1253         if (o->lat_log_file) {
1254                 struct log_params p = {
1255                         .td = td,
1256                         .avg_msec = o->log_avg_msec,
1257                         .log_type = IO_LOG_TYPE_LAT,
1258                         .log_offset = o->log_offset,
1259                         .log_gz = o->log_gz,
1260                         .log_gz_store = o->log_gz_store,
1261                 };
1262                 const char *suf;
1263
1264                 if (p.log_gz_store)
1265                         suf = "log.fz";
1266                 else
1267                         suf = "log";
1268
1269                 gen_log_name(logname, sizeof(logname), "lat", o->lat_log_file,
1270                                 td->thread_number, suf, o->per_job_logs);
1271                 setup_log(&td->lat_log, &p, logname);
1272
1273                 gen_log_name(logname, sizeof(logname), "slat", o->lat_log_file,
1274                                 td->thread_number, suf, o->per_job_logs);
1275                 setup_log(&td->slat_log, &p, logname);
1276
1277                 gen_log_name(logname, sizeof(logname), "clat", o->lat_log_file,
1278                                 td->thread_number, suf, o->per_job_logs);
1279                 setup_log(&td->clat_log, &p, logname);
1280         }
1281         if (o->bw_log_file) {
1282                 struct log_params p = {
1283                         .td = td,
1284                         .avg_msec = o->log_avg_msec,
1285                         .log_type = IO_LOG_TYPE_BW,
1286                         .log_offset = o->log_offset,
1287                         .log_gz = o->log_gz,
1288                         .log_gz_store = o->log_gz_store,
1289                 };
1290                 const char *suf;
1291
1292                 if (p.log_gz_store)
1293                         suf = "log.fz";
1294                 else
1295                         suf = "log";
1296
1297                 gen_log_name(logname, sizeof(logname), "bw", o->bw_log_file,
1298                                 td->thread_number, suf, o->per_job_logs);
1299                 setup_log(&td->bw_log, &p, logname);
1300         }
1301         if (o->iops_log_file) {
1302                 struct log_params p = {
1303                         .td = td,
1304                         .avg_msec = o->log_avg_msec,
1305                         .log_type = IO_LOG_TYPE_IOPS,
1306                         .log_offset = o->log_offset,
1307                         .log_gz = o->log_gz,
1308                         .log_gz_store = o->log_gz_store,
1309                 };
1310                 const char *suf;
1311
1312                 if (p.log_gz_store)
1313                         suf = "log.fz";
1314                 else
1315                         suf = "log";
1316
1317                 gen_log_name(logname, sizeof(logname), "iops", o->iops_log_file,
1318                                 td->thread_number, suf, o->per_job_logs);
1319                 setup_log(&td->iops_log, &p, logname);
1320         }
1321
1322         if (!o->name)
1323                 o->name = strdup(jobname);
1324
1325         if (output_format & FIO_OUTPUT_NORMAL) {
1326                 if (!job_add_num) {
1327                         if (is_backend && !recursed)
1328                                 fio_server_send_add_job(td);
1329
1330                         if (!(td->io_ops->flags & FIO_NOIO)) {
1331                                 char *c1, *c2, *c3, *c4;
1332                                 char *c5 = NULL, *c6 = NULL;
1333
1334                                 c1 = fio_uint_to_kmg(o->min_bs[DDIR_READ]);
1335                                 c2 = fio_uint_to_kmg(o->max_bs[DDIR_READ]);
1336                                 c3 = fio_uint_to_kmg(o->min_bs[DDIR_WRITE]);
1337                                 c4 = fio_uint_to_kmg(o->max_bs[DDIR_WRITE]);
1338
1339                                 if (!o->bs_is_seq_rand) {
1340                                         c5 = fio_uint_to_kmg(o->min_bs[DDIR_TRIM]);
1341                                         c6 = fio_uint_to_kmg(o->max_bs[DDIR_TRIM]);
1342                                 }
1343
1344                                 log_info("%s: (g=%d): rw=%s, ", td->o.name,
1345                                                         td->groupid,
1346                                                         ddir_str(o->td_ddir));
1347
1348                                 if (o->bs_is_seq_rand)
1349                                         log_info("bs(seq/rand)=%s-%s/%s-%s, ",
1350                                                         c1, c2, c3, c4);
1351                                 else
1352                                         log_info("bs=%s-%s/%s-%s/%s-%s, ",
1353                                                         c1, c2, c3, c4, c5, c6);
1354
1355                                 log_info("ioengine=%s, iodepth=%u\n",
1356                                                 td->io_ops->name, o->iodepth);
1357
1358                                 free(c1);
1359                                 free(c2);
1360                                 free(c3);
1361                                 free(c4);
1362                                 free(c5);
1363                                 free(c6);
1364                         }
1365                 } else if (job_add_num == 1)
1366                         log_info("...\n");
1367         }
1368
1369         /*
1370          * recurse add identical jobs, clear numjobs and stonewall options
1371          * as they don't apply to sub-jobs
1372          */
1373         numjobs = o->numjobs;
1374         while (--numjobs) {
1375                 struct thread_data *td_new = get_new_job(0, td, 1, jobname);
1376
1377                 if (!td_new)
1378                         goto err;
1379
1380                 td_new->o.numjobs = 1;
1381                 td_new->o.stonewall = 0;
1382                 td_new->o.new_group = 0;
1383                 td_new->subjob_number = numjobs;
1384
1385                 if (file_alloced) {
1386                         if (td_new->files) {
1387                                 struct fio_file *f;
1388                                 for_each_file(td_new, f, i) {
1389                                         if (f->file_name)
1390                                                 sfree(f->file_name);
1391                                         sfree(f);
1392                                 }
1393                                 free(td_new->files);
1394                                 td_new->files = NULL;
1395                         }
1396                         td_new->files_index = 0;
1397                         td_new->files_size = 0;
1398                         if (td_new->o.filename) {
1399                                 free(td_new->o.filename);
1400                                 td_new->o.filename = NULL;
1401                         }
1402                 }
1403
1404                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1405                         goto err;
1406         }
1407
1408         return 0;
1409 err:
1410         put_job(td);
1411         return -1;
1412 }
1413
1414 /*
1415  * Parse as if 'o' was a command line
1416  */
1417 void add_job_opts(const char **o, int client_type)
1418 {
1419         struct thread_data *td, *td_parent;
1420         int i, in_global = 1;
1421         char jobname[32];
1422
1423         i = 0;
1424         td_parent = td = NULL;
1425         while (o[i]) {
1426                 if (!strncmp(o[i], "name", 4)) {
1427                         in_global = 0;
1428                         if (td)
1429                                 add_job(td, jobname, 0, 0, client_type);
1430                         td = NULL;
1431                         sprintf(jobname, "%s", o[i] + 5);
1432                 }
1433                 if (in_global && !td_parent)
1434                         td_parent = get_new_job(1, &def_thread, 0, jobname);
1435                 else if (!in_global && !td) {
1436                         if (!td_parent)
1437                                 td_parent = &def_thread;
1438                         td = get_new_job(0, td_parent, 0, jobname);
1439                 }
1440                 if (in_global)
1441                         fio_options_parse(td_parent, (char **) &o[i], 1, 0);
1442                 else
1443                         fio_options_parse(td, (char **) &o[i], 1, 0);
1444                 i++;
1445         }
1446
1447         if (td)
1448                 add_job(td, jobname, 0, 0, client_type);
1449 }
1450
1451 static int skip_this_section(const char *name)
1452 {
1453         int i;
1454
1455         if (!nr_job_sections)
1456                 return 0;
1457         if (!strncmp(name, "global", 6))
1458                 return 0;
1459
1460         for (i = 0; i < nr_job_sections; i++)
1461                 if (!strcmp(job_sections[i], name))
1462                         return 0;
1463
1464         return 1;
1465 }
1466
1467 static int is_empty_or_comment(char *line)
1468 {
1469         unsigned int i;
1470
1471         for (i = 0; i < strlen(line); i++) {
1472                 if (line[i] == ';')
1473                         return 1;
1474                 if (line[i] == '#')
1475                         return 1;
1476                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1477                         return 0;
1478         }
1479
1480         return 1;
1481 }
1482
1483 /*
1484  * This is our [ini] type file parser.
1485  */
1486 int __parse_jobs_ini(struct thread_data *td,
1487                 char *file, int is_buf, int stonewall_flag, int type,
1488                 int nested, char *name, char ***popts, int *aopts, int *nopts)
1489 {
1490         unsigned int global = 0;
1491         char *string;
1492         FILE *f;
1493         char *p;
1494         int ret = 0, stonewall;
1495         int first_sect = 1;
1496         int skip_fgets = 0;
1497         int inside_skip = 0;
1498         char **opts;
1499         int i, alloc_opts, num_opts;
1500
1501         dprint(FD_PARSE, "Parsing ini file %s\n", file);
1502         assert(td || !nested);
1503
1504         if (is_buf)
1505                 f = NULL;
1506         else {
1507                 if (!strcmp(file, "-"))
1508                         f = stdin;
1509                 else
1510                         f = fopen(file, "r");
1511
1512                 if (!f) {
1513                         int __err = errno;
1514
1515                         log_err("fio: unable to open '%s' job file\n", file);
1516                         if (td)
1517                                 td_verror(td, __err, "job file open");
1518                         return 1;
1519                 }
1520         }
1521
1522         string = malloc(4096);
1523
1524         /*
1525          * it's really 256 + small bit, 280 should suffice
1526          */
1527         if (!nested) {
1528                 name = malloc(280);
1529                 memset(name, 0, 280);
1530         }
1531
1532         opts = NULL;
1533         if (nested && popts) {
1534                 opts = *popts;
1535                 alloc_opts = *aopts;
1536                 num_opts = *nopts;
1537         }
1538
1539         if (!opts) {
1540                 alloc_opts = 8;
1541                 opts = malloc(sizeof(char *) * alloc_opts);
1542                 num_opts = 0;
1543         }
1544
1545         stonewall = stonewall_flag;
1546         do {
1547                 /*
1548                  * if skip_fgets is set, we already have loaded a line we
1549                  * haven't handled.
1550                  */
1551                 if (!skip_fgets) {
1552                         if (is_buf)
1553                                 p = strsep(&file, "\n");
1554                         else
1555                                 p = fgets(string, 4096, f);
1556                         if (!p)
1557                                 break;
1558                 }
1559
1560                 skip_fgets = 0;
1561                 strip_blank_front(&p);
1562                 strip_blank_end(p);
1563
1564                 dprint(FD_PARSE, "%s\n", p);
1565                 if (is_empty_or_comment(p))
1566                         continue;
1567
1568                 if (!nested) {
1569                         if (sscanf(p, "[%255[^\n]]", name) != 1) {
1570                                 if (inside_skip)
1571                                         continue;
1572
1573                                 log_err("fio: option <%s> outside of "
1574                                         "[] job section\n", p);
1575                                 ret = 1;
1576                                 break;
1577                         }
1578
1579                         name[strlen(name) - 1] = '\0';
1580
1581                         if (skip_this_section(name)) {
1582                                 inside_skip = 1;
1583                                 continue;
1584                         } else
1585                                 inside_skip = 0;
1586
1587                         dprint(FD_PARSE, "Parsing section [%s]\n", name);
1588
1589                         global = !strncmp(name, "global", 6);
1590
1591                         if (dump_cmdline) {
1592                                 if (first_sect)
1593                                         log_info("fio ");
1594                                 if (!global)
1595                                         log_info("--name=%s ", name);
1596                                 first_sect = 0;
1597                         }
1598
1599                         td = get_new_job(global, &def_thread, 0, name);
1600                         if (!td) {
1601                                 ret = 1;
1602                                 break;
1603                         }
1604
1605                         /*
1606                          * Separate multiple job files by a stonewall
1607                          */
1608                         if (!global && stonewall) {
1609                                 td->o.stonewall = stonewall;
1610                                 stonewall = 0;
1611                         }
1612
1613                         num_opts = 0;
1614                         memset(opts, 0, alloc_opts * sizeof(char *));
1615                 }
1616                 else
1617                         skip_fgets = 1;
1618
1619                 while (1) {
1620                         if (!skip_fgets) {
1621                                 if (is_buf)
1622                                         p = strsep(&file, "\n");
1623                                 else
1624                                         p = fgets(string, 4096, f);
1625                                 if (!p)
1626                                         break;
1627                                 dprint(FD_PARSE, "%s", p);
1628                         }
1629                         else
1630                                 skip_fgets = 0;
1631
1632                         if (is_empty_or_comment(p))
1633                                 continue;
1634
1635                         strip_blank_front(&p);
1636
1637                         /*
1638                          * new section, break out and make sure we don't
1639                          * fgets() a new line at the top.
1640                          */
1641                         if (p[0] == '[') {
1642                                 if (nested) {
1643                                         log_err("No new sections in included files\n");
1644                                         return 1;
1645                                 }
1646
1647                                 skip_fgets = 1;
1648                                 break;
1649                         }
1650
1651                         strip_blank_end(p);
1652
1653                         if (!strncmp(p, "include", strlen("include"))) {
1654                                 char *filename = p + strlen("include") + 1;
1655
1656                                 if ((ret = __parse_jobs_ini(td, filename,
1657                                                 is_buf, stonewall_flag, type, 1,
1658                                                 name, &opts, &alloc_opts, &num_opts))) {
1659                                         log_err("Error %d while parsing include file %s\n",
1660                                                 ret, filename);
1661                                         break;
1662                                 }
1663                                 continue;
1664                         }
1665
1666                         if (num_opts == alloc_opts) {
1667                                 alloc_opts <<= 1;
1668                                 opts = realloc(opts,
1669                                                 alloc_opts * sizeof(char *));
1670                         }
1671
1672                         opts[num_opts] = strdup(p);
1673                         num_opts++;
1674                 }
1675
1676                 if (nested) {
1677                         *popts = opts;
1678                         *aopts = alloc_opts;
1679                         *nopts = num_opts;
1680                         goto out;
1681                 }
1682
1683                 ret = fio_options_parse(td, opts, num_opts, dump_cmdline);
1684                 if (!ret)
1685                         ret = add_job(td, name, 0, 0, type);
1686                 else {
1687                         log_err("fio: job %s dropped\n", name);
1688                         put_job(td);
1689                 }
1690
1691                 for (i = 0; i < num_opts; i++)
1692                         free(opts[i]);
1693                 num_opts = 0;
1694         } while (!ret);
1695
1696         if (dump_cmdline)
1697                 log_info("\n");
1698
1699         i = 0;
1700         while (i < nr_job_sections) {
1701                 free(job_sections[i]);
1702                 i++;
1703         }
1704
1705         free(opts);
1706 out:
1707         free(string);
1708         if (!nested)
1709                 free(name);
1710         if (!is_buf && f != stdin)
1711                 fclose(f);
1712         return ret;
1713 }
1714
1715 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
1716 {
1717         return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
1718                         0, NULL, NULL, NULL, NULL);
1719 }
1720
1721 static int fill_def_thread(void)
1722 {
1723         memset(&def_thread, 0, sizeof(def_thread));
1724
1725         fio_getaffinity(getpid(), &def_thread.o.cpumask);
1726         def_thread.o.error_dump = 1;
1727
1728         /*
1729          * fill default options
1730          */
1731         fio_fill_default_options(&def_thread);
1732         return 0;
1733 }
1734
1735 static void show_debug_categories(void)
1736 {
1737         struct debug_level *dl = &debug_levels[0];
1738         int curlen, first = 1;
1739
1740         curlen = 0;
1741         while (dl->name) {
1742                 int has_next = (dl + 1)->name != NULL;
1743
1744                 if (first || curlen + strlen(dl->name) >= 80) {
1745                         if (!first) {
1746                                 printf("\n");
1747                                 curlen = 0;
1748                         }
1749                         curlen += printf("\t\t\t%s", dl->name);
1750                         curlen += 3 * (8 - 1);
1751                         if (has_next)
1752                                 curlen += printf(",");
1753                 } else {
1754                         curlen += printf("%s", dl->name);
1755                         if (has_next)
1756                                 curlen += printf(",");
1757                 }
1758                 dl++;
1759                 first = 0;
1760         }
1761         printf("\n");
1762 }
1763
1764 static void usage(const char *name)
1765 {
1766         printf("%s\n", fio_version_string);
1767         printf("%s [options] [job options] <job file(s)>\n", name);
1768         printf("  --debug=options\tEnable debug logging. May be one/more of:\n");
1769         show_debug_categories();
1770         printf("  --parse-only\t\tParse options only, don't start any IO\n");
1771         printf("  --output\t\tWrite output to file\n");
1772         printf("  --runtime\t\tRuntime in seconds\n");
1773         printf("  --bandwidth-log\tGenerate per-job bandwidth logs\n");
1774         printf("  --minimal\t\tMinimal (terse) output\n");
1775         printf("  --output-format=x\tOutput format (terse,json,json+,normal)\n");
1776         printf("  --terse-version=x\tSet terse version output format to 'x'\n");
1777         printf("  --version\t\tPrint version info and exit\n");
1778         printf("  --help\t\tPrint this page\n");
1779         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
1780         printf("  --crctest\t\tTest speed of checksum functions\n");
1781         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
1782                 " them\n");
1783         printf("  --enghelp=engine\tPrint ioengine help, or list"
1784                 " available ioengines\n");
1785         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
1786                 " cmd\n");
1787         printf("  --showcmd\t\tTurn a job file into command line options\n");
1788         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
1789         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
1790         printf("  --eta-newline=time\tForce a new line for every 'time'");
1791         printf(" period passed\n");
1792         printf("  --status-interval=t\tForce full status dump every");
1793         printf(" 't' period passed\n");
1794         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
1795                 " writes\n");
1796         printf("  --section=name\tOnly run specified section in job file\n");
1797         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
1798                 " (def 1024)\n");
1799         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
1800         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1801         printf("  --server=args\t\tStart a backend fio server\n");
1802         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
1803         printf("  --client=hostname\tTalk to remote backend fio server at hostname\n");
1804         printf("  --remote-config=file\tTell fio server to load this local job file\n");
1805         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
1806                 "\t\t\t(option=system,percpu) or run unit work\n"
1807                 "\t\t\tcalibration only (option=calibrate)\n");
1808 #ifdef CONFIG_ZLIB
1809         printf("  --inflate-log=log\tInflate and output compressed log\n");
1810 #endif
1811         printf("  --trigger-file=file\tExecute trigger cmd when file exists\n");
1812         printf("  --trigger-timeout=t\tExecute trigger af this time\n");
1813         printf("  --trigger=cmd\t\tSet this command as local trigger\n");
1814         printf("  --trigger-remote=cmd\tSet this command as remote trigger\n");
1815         printf("  --aux-path=path\tUse this path for fio state generated files\n");
1816         printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1817         printf("\n                   Jens Axboe <jaxboe@fusionio.com>");
1818         printf("\n                   Jens Axboe <axboe@fb.com>\n");
1819 }
1820
1821 #ifdef FIO_INC_DEBUG
1822 struct debug_level debug_levels[] = {
1823         { .name = "process",
1824           .help = "Process creation/exit logging",
1825           .shift = FD_PROCESS,
1826         },
1827         { .name = "file",
1828           .help = "File related action logging",
1829           .shift = FD_FILE,
1830         },
1831         { .name = "io",
1832           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
1833           .shift = FD_IO,
1834         },
1835         { .name = "mem",
1836           .help = "Memory allocation/freeing logging",
1837           .shift = FD_MEM,
1838         },
1839         { .name = "blktrace",
1840           .help = "blktrace action logging",
1841           .shift = FD_BLKTRACE,
1842         },
1843         { .name = "verify",
1844           .help = "IO verification action logging",
1845           .shift = FD_VERIFY,
1846         },
1847         { .name = "random",
1848           .help = "Random generation logging",
1849           .shift = FD_RANDOM,
1850         },
1851         { .name = "parse",
1852           .help = "Parser logging",
1853           .shift = FD_PARSE,
1854         },
1855         { .name = "diskutil",
1856           .help = "Disk utility logging actions",
1857           .shift = FD_DISKUTIL,
1858         },
1859         { .name = "job",
1860           .help = "Logging related to creating/destroying jobs",
1861           .shift = FD_JOB,
1862         },
1863         { .name = "mutex",
1864           .help = "Mutex logging",
1865           .shift = FD_MUTEX
1866         },
1867         { .name = "profile",
1868           .help = "Logging related to profiles",
1869           .shift = FD_PROFILE,
1870         },
1871         { .name = "time",
1872           .help = "Logging related to time keeping functions",
1873           .shift = FD_TIME,
1874         },
1875         { .name = "net",
1876           .help = "Network logging",
1877           .shift = FD_NET,
1878         },
1879         { .name = "rate",
1880           .help = "Rate logging",
1881           .shift = FD_RATE,
1882         },
1883         { .name = "compress",
1884           .help = "Log compression logging",
1885           .shift = FD_COMPRESS,
1886         },
1887         { .name = NULL, },
1888 };
1889
1890 static int set_debug(const char *string)
1891 {
1892         struct debug_level *dl;
1893         char *p = (char *) string;
1894         char *opt;
1895         int i;
1896
1897         if (!strcmp(string, "?") || !strcmp(string, "help")) {
1898                 log_info("fio: dumping debug options:");
1899                 for (i = 0; debug_levels[i].name; i++) {
1900                         dl = &debug_levels[i];
1901                         log_info("%s,", dl->name);
1902                 }
1903                 log_info("all\n");
1904                 return 1;
1905         }
1906
1907         while ((opt = strsep(&p, ",")) != NULL) {
1908                 int found = 0;
1909
1910                 if (!strncmp(opt, "all", 3)) {
1911                         log_info("fio: set all debug options\n");
1912                         fio_debug = ~0UL;
1913                         continue;
1914                 }
1915
1916                 for (i = 0; debug_levels[i].name; i++) {
1917                         dl = &debug_levels[i];
1918                         found = !strncmp(opt, dl->name, strlen(dl->name));
1919                         if (!found)
1920                                 continue;
1921
1922                         if (dl->shift == FD_JOB) {
1923                                 opt = strchr(opt, ':');
1924                                 if (!opt) {
1925                                         log_err("fio: missing job number\n");
1926                                         break;
1927                                 }
1928                                 opt++;
1929                                 fio_debug_jobno = atoi(opt);
1930                                 log_info("fio: set debug jobno %d\n",
1931                                                         fio_debug_jobno);
1932                         } else {
1933                                 log_info("fio: set debug option %s\n", opt);
1934                                 fio_debug |= (1UL << dl->shift);
1935                         }
1936                         break;
1937                 }
1938
1939                 if (!found)
1940                         log_err("fio: debug mask %s not found\n", opt);
1941         }
1942         return 0;
1943 }
1944 #else
1945 static int set_debug(const char *string)
1946 {
1947         log_err("fio: debug tracing not included in build\n");
1948         return 1;
1949 }
1950 #endif
1951
1952 static void fio_options_fill_optstring(void)
1953 {
1954         char *ostr = cmd_optstr;
1955         int i, c;
1956
1957         c = i = 0;
1958         while (l_opts[i].name) {
1959                 ostr[c++] = l_opts[i].val;
1960                 if (l_opts[i].has_arg == required_argument)
1961                         ostr[c++] = ':';
1962                 else if (l_opts[i].has_arg == optional_argument) {
1963                         ostr[c++] = ':';
1964                         ostr[c++] = ':';
1965                 }
1966                 i++;
1967         }
1968         ostr[c] = '\0';
1969 }
1970
1971 static int client_flag_set(char c)
1972 {
1973         int i;
1974
1975         i = 0;
1976         while (l_opts[i].name) {
1977                 int val = l_opts[i].val;
1978
1979                 if (c == (val & 0xff))
1980                         return (val & FIO_CLIENT_FLAG);
1981
1982                 i++;
1983         }
1984
1985         return 0;
1986 }
1987
1988 static void parse_cmd_client(void *client, char *opt)
1989 {
1990         fio_client_add_cmd_option(client, opt);
1991 }
1992
1993 static void show_closest_option(const char *name)
1994 {
1995         int best_option, best_distance;
1996         int i, distance;
1997
1998         while (*name == '-')
1999                 name++;
2000
2001         best_option = -1;
2002         best_distance = INT_MAX;
2003         i = 0;
2004         while (l_opts[i].name) {
2005                 distance = string_distance(name, l_opts[i].name);
2006                 if (distance < best_distance) {
2007                         best_distance = distance;
2008                         best_option = i;
2009                 }
2010                 i++;
2011         }
2012
2013         if (best_option != -1 && string_distance_ok(name, best_distance))
2014                 log_err("Did you mean %s?\n", l_opts[best_option].name);
2015 }
2016
2017 static int parse_output_format(const char *optarg)
2018 {
2019         char *p, *orig, *opt;
2020         int ret = 0;
2021
2022         p = orig = strdup(optarg);
2023
2024         output_format = 0;
2025
2026         while ((opt = strsep(&p, ",")) != NULL) {
2027                 if (!strcmp(opt, "minimal") ||
2028                     !strcmp(opt, "terse") ||
2029                     !strcmp(opt, "csv"))
2030                         output_format |= FIO_OUTPUT_TERSE;
2031                 else if (!strcmp(opt, "json"))
2032                         output_format |= FIO_OUTPUT_JSON;
2033                 else if (!strcmp(opt, "json+"))
2034                         output_format |= (FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS);
2035                 else if (!strcmp(opt, "normal"))
2036                         output_format |= FIO_OUTPUT_NORMAL;
2037                 else {
2038                         log_err("fio: invalid output format %s\n", opt);
2039                         ret = 1;
2040                         break;
2041                 }
2042         }
2043
2044         free(orig);
2045         return ret;
2046 }
2047
2048 int parse_cmd_line(int argc, char *argv[], int client_type)
2049 {
2050         struct thread_data *td = NULL;
2051         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
2052         char *ostr = cmd_optstr;
2053         void *pid_file = NULL;
2054         void *cur_client = NULL;
2055         int backend = 0;
2056
2057         /*
2058          * Reset optind handling, since we may call this multiple times
2059          * for the backend.
2060          */
2061         optind = 1;
2062
2063         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
2064                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
2065                         parse_cmd_client(cur_client, argv[optind - 1]);
2066                         c &= ~FIO_CLIENT_FLAG;
2067                 }
2068
2069                 switch (c) {
2070                 case 'a':
2071                         smalloc_pool_size = atoi(optarg);
2072                         break;
2073                 case 't':
2074                         if (check_str_time(optarg, &def_timeout, 1)) {
2075                                 log_err("fio: failed parsing time %s\n", optarg);
2076                                 do_exit++;
2077                                 exit_val = 1;
2078                         }
2079                         break;
2080                 case 'l':
2081                         log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
2082                         do_exit++;
2083                         exit_val = 1;
2084                         break;
2085                 case 'b':
2086                         write_bw_log = 1;
2087                         break;
2088                 case 'o':
2089                         if (f_out && f_out != stdout)
2090                                 fclose(f_out);
2091
2092                         f_out = fopen(optarg, "w+");
2093                         if (!f_out) {
2094                                 perror("fopen output");
2095                                 exit(1);
2096                         }
2097                         f_err = f_out;
2098                         break;
2099                 case 'm':
2100                         output_format = FIO_OUTPUT_TERSE;
2101                         break;
2102                 case 'F':
2103                         if (!optarg) {
2104                                 log_err("fio: missing --output-format argument\n");
2105                                 exit_val = 1;
2106                                 do_exit++;
2107                                 break;
2108                         }
2109                         if (parse_output_format(optarg)) {
2110                                 log_err("fio: failed parsing output-format\n");
2111                                 exit_val = 1;
2112                                 do_exit++;
2113                                 break;
2114                         }
2115                         break;
2116                 case 'f':
2117                         output_format |= FIO_OUTPUT_TERSE;
2118                         break;
2119                 case 'h':
2120                         did_arg = 1;
2121                         if (!cur_client) {
2122                                 usage(argv[0]);
2123                                 do_exit++;
2124                         }
2125                         break;
2126                 case 'c':
2127                         did_arg = 1;
2128                         if (!cur_client) {
2129                                 fio_show_option_help(optarg);
2130                                 do_exit++;
2131                         }
2132                         break;
2133                 case 'i':
2134                         did_arg = 1;
2135                         if (!cur_client) {
2136                                 fio_show_ioengine_help(optarg);
2137                                 do_exit++;
2138                         }
2139                         break;
2140                 case 's':
2141                         did_arg = 1;
2142                         dump_cmdline = 1;
2143                         break;
2144                 case 'r':
2145                         read_only = 1;
2146                         break;
2147                 case 'v':
2148                         did_arg = 1;
2149                         if (!cur_client) {
2150                                 log_info("%s\n", fio_version_string);
2151                                 do_exit++;
2152                         }
2153                         break;
2154                 case 'V':
2155                         terse_version = atoi(optarg);
2156                         if (!(terse_version == 2 || terse_version == 3 ||
2157                              terse_version == 4)) {
2158                                 log_err("fio: bad terse version format\n");
2159                                 exit_val = 1;
2160                                 do_exit++;
2161                         }
2162                         break;
2163                 case 'e':
2164                         if (!strcmp("always", optarg))
2165                                 eta_print = FIO_ETA_ALWAYS;
2166                         else if (!strcmp("never", optarg))
2167                                 eta_print = FIO_ETA_NEVER;
2168                         break;
2169                 case 'E': {
2170                         long long t = 0;
2171
2172                         if (check_str_time(optarg, &t, 1)) {
2173                                 log_err("fio: failed parsing eta time %s\n", optarg);
2174                                 exit_val = 1;
2175                                 do_exit++;
2176                         }
2177                         eta_new_line = t / 1000;
2178                         break;
2179                         }
2180                 case 'd':
2181                         if (set_debug(optarg))
2182                                 do_exit++;
2183                         break;
2184                 case 'P':
2185                         did_arg = 1;
2186                         parse_only = 1;
2187                         break;
2188                 case 'x': {
2189                         size_t new_size;
2190
2191                         if (!strcmp(optarg, "global")) {
2192                                 log_err("fio: can't use global as only "
2193                                         "section\n");
2194                                 do_exit++;
2195                                 exit_val = 1;
2196                                 break;
2197                         }
2198                         new_size = (nr_job_sections + 1) * sizeof(char *);
2199                         job_sections = realloc(job_sections, new_size);
2200                         job_sections[nr_job_sections] = strdup(optarg);
2201                         nr_job_sections++;
2202                         break;
2203                         }
2204 #ifdef CONFIG_ZLIB
2205                 case 'X':
2206                         exit_val = iolog_file_inflate(optarg);
2207                         did_arg++;
2208                         do_exit++;
2209                         break;
2210 #endif
2211                 case 'p':
2212                         did_arg = 1;
2213                         if (exec_profile)
2214                                 free(exec_profile);
2215                         exec_profile = strdup(optarg);
2216                         break;
2217                 case FIO_GETOPT_JOB: {
2218                         const char *opt = l_opts[lidx].name;
2219                         char *val = optarg;
2220
2221                         if (!strncmp(opt, "name", 4) && td) {
2222                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2223                                 if (ret)
2224                                         goto out_free;
2225                                 td = NULL;
2226                                 did_arg = 1;
2227                         }
2228                         if (!td) {
2229                                 int is_section = !strncmp(opt, "name", 4);
2230                                 int global = 0;
2231
2232                                 if (!is_section || !strncmp(val, "global", 6))
2233                                         global = 1;
2234
2235                                 if (is_section && skip_this_section(val))
2236                                         continue;
2237
2238                                 td = get_new_job(global, &def_thread, 1, NULL);
2239                                 if (!td || ioengine_load(td)) {
2240                                         if (td) {
2241                                                 put_job(td);
2242                                                 td = NULL;
2243                                         }
2244                                         do_exit++;
2245                                         exit_val = 1;
2246                                         break;
2247                                 }
2248                                 fio_options_set_ioengine_opts(l_opts, td);
2249                         }
2250
2251                         if ((!val || !strlen(val)) &&
2252                             l_opts[lidx].has_arg == required_argument) {
2253                                 log_err("fio: option %s requires an argument\n", opt);
2254                                 ret = 1;
2255                         } else
2256                                 ret = fio_cmd_option_parse(td, opt, val);
2257
2258                         if (ret) {
2259                                 if (td) {
2260                                         put_job(td);
2261                                         td = NULL;
2262                                 }
2263                                 do_exit++;
2264                                 exit_val = 1;
2265                         }
2266
2267                         if (!ret && !strcmp(opt, "ioengine")) {
2268                                 free_ioengine(td);
2269                                 if (ioengine_load(td)) {
2270                                         put_job(td);
2271                                         td = NULL;
2272                                         do_exit++;
2273                                         exit_val = 1;
2274                                         break;
2275                                 }
2276                                 fio_options_set_ioengine_opts(l_opts, td);
2277                         }
2278                         break;
2279                 }
2280                 case FIO_GETOPT_IOENGINE: {
2281                         const char *opt = l_opts[lidx].name;
2282                         char *val = optarg;
2283
2284                         if (!td)
2285                                 break;
2286
2287                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
2288                         break;
2289                 }
2290                 case 'w':
2291                         warnings_fatal = 1;
2292                         break;
2293                 case 'j':
2294                         max_jobs = atoi(optarg);
2295                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2296                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
2297                                 do_exit++;
2298                                 exit_val = 1;
2299                         }
2300                         break;
2301                 case 'S':
2302                         did_arg = 1;
2303 #ifndef CONFIG_NO_SHM
2304                         if (nr_clients) {
2305                                 log_err("fio: can't be both client and server\n");
2306                                 do_exit++;
2307                                 exit_val = 1;
2308                                 break;
2309                         }
2310                         if (optarg)
2311                                 fio_server_set_arg(optarg);
2312                         is_backend = 1;
2313                         backend = 1;
2314 #else
2315                         log_err("fio: client/server requires SHM support\n");
2316                         do_exit++;
2317                         exit_val = 1;
2318 #endif
2319                         break;
2320                 case 'D':
2321                         if (pid_file)
2322                                 free(pid_file);
2323                         pid_file = strdup(optarg);
2324                         break;
2325                 case 'I':
2326                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
2327                                 /* exit on error and calibration only */
2328                                 did_arg = 1;
2329                                 do_exit++;
2330                                 if (ret == -1)
2331                                         exit_val = 1;
2332                         }
2333                         break;
2334                 case 'C':
2335                         did_arg = 1;
2336                         if (is_backend) {
2337                                 log_err("fio: can't be both client and server\n");
2338                                 do_exit++;
2339                                 exit_val = 1;
2340                                 break;
2341                         }
2342                         /* if --client parameter contains a pathname */
2343                         if (0 == access(optarg, R_OK)) {
2344                                 /* file contains a list of host addrs or names */
2345                                 char hostaddr[PATH_MAX] = {0};
2346                                 char formatstr[8];
2347                                 FILE * hostf = fopen(optarg, "r");
2348                                 if (!hostf) {
2349                                         log_err("fio: could not open client list file %s for read\n", optarg);
2350                                         do_exit++;
2351                                         exit_val = 1;
2352                                         break;
2353                                 }
2354                                 sprintf(formatstr, "%%%ds", PATH_MAX - 1);
2355                                 /*
2356                                  * read at most PATH_MAX-1 chars from each
2357                                  * record in this file
2358                                  */
2359                                 while (fscanf(hostf, formatstr, hostaddr) == 1) {
2360                                         /* expect EVERY host in file to be valid */
2361                                         if (fio_client_add(&fio_client_ops, hostaddr, &cur_client)) {
2362                                                 log_err("fio: failed adding client %s from file %s\n", hostaddr, optarg);
2363                                                 do_exit++;
2364                                                 exit_val = 1;
2365                                                 break;
2366                                         }
2367                                 }
2368                                 fclose(hostf);
2369                                 break; /* no possibility of job file for "this client only" */
2370                         }
2371                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2372                                 log_err("fio: failed adding client %s\n", optarg);
2373                                 do_exit++;
2374                                 exit_val = 1;
2375                                 break;
2376                         }
2377                         /*
2378                          * If the next argument exists and isn't an option,
2379                          * assume it's a job file for this client only.
2380                          */
2381                         while (optind < argc) {
2382                                 if (!strncmp(argv[optind], "--", 2) ||
2383                                     !strncmp(argv[optind], "-", 1))
2384                                         break;
2385
2386                                 if (fio_client_add_ini_file(cur_client, argv[optind], 0))
2387                                         break;
2388                                 optind++;
2389                         }
2390                         break;
2391                 case 'R':
2392                         did_arg = 1;
2393                         if (fio_client_add_ini_file(cur_client, optarg, 1)) {
2394                                 do_exit++;
2395                                 exit_val = 1;
2396                         }
2397                         break;
2398                 case 'T':
2399                         did_arg = 1;
2400                         do_exit++;
2401                         exit_val = fio_monotonic_clocktest(1);
2402                         break;
2403                 case 'G':
2404                         did_arg = 1;
2405                         do_exit++;
2406                         exit_val = fio_crctest(optarg);
2407                         break;
2408                 case 'L': {
2409                         long long val;
2410
2411                         if (check_str_time(optarg, &val, 1)) {
2412                                 log_err("fio: failed parsing time %s\n", optarg);
2413                                 do_exit++;
2414                                 exit_val = 1;
2415                                 break;
2416                         }
2417                         status_interval = val / 1000;
2418                         break;
2419                         }
2420                 case 'W':
2421                         if (trigger_file)
2422                                 free(trigger_file);
2423                         trigger_file = strdup(optarg);
2424                         break;
2425                 case 'H':
2426                         if (trigger_cmd)
2427                                 free(trigger_cmd);
2428                         trigger_cmd = strdup(optarg);
2429                         break;
2430                 case 'J':
2431                         if (trigger_remote_cmd)
2432                                 free(trigger_remote_cmd);
2433                         trigger_remote_cmd = strdup(optarg);
2434                         break;
2435                 case 'K':
2436                         if (aux_path)
2437                                 free(aux_path);
2438                         aux_path = strdup(optarg);
2439                         break;
2440                 case 'B':
2441                         if (check_str_time(optarg, &trigger_timeout, 1)) {
2442                                 log_err("fio: failed parsing time %s\n", optarg);
2443                                 do_exit++;
2444                                 exit_val = 1;
2445                         }
2446                         trigger_timeout /= 1000000;
2447                         break;
2448                 case '?':
2449                         log_err("%s: unrecognized option '%s'\n", argv[0],
2450                                                         argv[optind - 1]);
2451                         show_closest_option(argv[optind - 1]);
2452                 default:
2453                         do_exit++;
2454                         exit_val = 1;
2455                         break;
2456                 }
2457                 if (do_exit)
2458                         break;
2459         }
2460
2461         if (do_exit && !(is_backend || nr_clients))
2462                 exit(exit_val);
2463
2464         if (nr_clients && fio_clients_connect())
2465                 exit(1);
2466
2467         if (is_backend && backend)
2468                 return fio_start_server(pid_file);
2469         else if (pid_file)
2470                 free(pid_file);
2471
2472         if (td) {
2473                 if (!ret) {
2474                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2475                         if (ret)
2476                                 did_arg = 1;
2477                 }
2478         }
2479
2480         while (!ret && optind < argc) {
2481                 ini_idx++;
2482                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2483                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2484                 optind++;
2485         }
2486
2487 out_free:
2488         if (pid_file)
2489                 free(pid_file);
2490
2491         return ini_idx;
2492 }
2493
2494 int fio_init_options(void)
2495 {
2496         f_out = stdout;
2497         f_err = stderr;
2498
2499         fio_options_fill_optstring();
2500         fio_options_dup_and_init(l_opts);
2501
2502         atexit(free_shm);
2503
2504         if (fill_def_thread())
2505                 return 1;
2506
2507         return 0;
2508 }
2509
2510 extern int fio_check_options(struct thread_options *);
2511
2512 int parse_options(int argc, char *argv[])
2513 {
2514         const int type = FIO_CLIENT_TYPE_CLI;
2515         int job_files, i;
2516
2517         if (fio_init_options())
2518                 return 1;
2519         if (fio_test_cconv(&def_thread.o))
2520                 log_err("fio: failed internal cconv test\n");
2521
2522         job_files = parse_cmd_line(argc, argv, type);
2523
2524         if (job_files > 0) {
2525                 for (i = 0; i < job_files; i++) {
2526                         if (i && fill_def_thread())
2527                                 return 1;
2528                         if (nr_clients) {
2529                                 if (fio_clients_send_ini(ini_file[i]))
2530                                         return 1;
2531                                 free(ini_file[i]);
2532                         } else if (!is_backend) {
2533                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2534                                         return 1;
2535                                 free(ini_file[i]);
2536                         }
2537                 }
2538         } else if (nr_clients) {
2539                 if (fill_def_thread())
2540                         return 1;
2541                 if (fio_clients_send_ini(NULL))
2542                         return 1;
2543         }
2544
2545         free(ini_file);
2546         fio_options_free(&def_thread);
2547         filesetup_mem_free();
2548
2549         if (!thread_number) {
2550                 if (parse_dryrun())
2551                         return 0;
2552                 if (exec_profile)
2553                         return 0;
2554                 if (is_backend || nr_clients)
2555                         return 0;
2556                 if (did_arg)
2557                         return 0;
2558
2559                 log_err("No jobs(s) defined\n\n");
2560
2561                 if (!did_arg) {
2562                         usage(argv[0]);
2563                         return 1;
2564                 }
2565
2566                 return 0;
2567         }
2568
2569         if (output_format & FIO_OUTPUT_NORMAL)
2570                 log_info("%s\n", fio_version_string);
2571
2572         return 0;
2573 }
2574
2575 void options_default_fill(struct thread_options *o)
2576 {
2577         memcpy(o, &def_thread.o, sizeof(*o));
2578 }