init.c

   1 /*
   2  * This file contains job initialization and setup functions.
   3  */
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6 #include <unistd.h>
   7 #include <fcntl.h>
   8 #include <ctype.h>
   9 #include <string.h>
  10 #include <errno.h>
  11 #include <sys/ipc.h>
  12 #include <sys/types.h>
  13 #include <sys/stat.h>
  14
  15 #include "fio.h"
  16 #ifndef FIO_NO_HAVE_SHM_H
  17 #include <sys/shm.h>
  18 #endif
  19
  20 #include "parse.h"
  21 #include "smalloc.h"
  22 #include "filehash.h"
  23 #include "verify.h"
  24 #include "profile.h"
  25 #include "server.h"
  26 #include "idletime.h"
  27 #include "filelock.h"
  28
  29 #include "lib/getopt.h"
  30 #include "lib/strcasestr.h"
  31
  32 #include "crc/test.h"
  33
  34 const char fio_version_string[] = FIO_VERSION;
  35
  36 #define FIO_RANDSEED            (0xb1899bedUL)
  37
  38 static char **ini_file;
  39 static int max_jobs = FIO_MAX_JOBS;
  40 static int dump_cmdline;
  41 static long long def_timeout;
  42 static int parse_only;
  43
  44 static struct thread_data def_thread;
  45 struct thread_data *threads = NULL;
  46 static char **job_sections;
  47 static int nr_job_sections;
  48
  49 int exitall_on_terminate = 0;
  50 int output_format = FIO_OUTPUT_NORMAL;
  51 int append_terse_output = 0;
  52 int eta_print = FIO_ETA_AUTO;
  53 int eta_new_line = 0;
  54 FILE *f_out = NULL;
  55 FILE *f_err = NULL;
  56 char *exec_profile = NULL;
  57 int warnings_fatal = 0;
  58 int terse_version = 3;
  59 int is_backend = 0;
  60 int nr_clients = 0;
  61 int log_syslog = 0;
  62
  63 int write_bw_log = 0;
  64 int read_only = 0;
  65 int status_interval = 0;
  66
  67 char *trigger_file = NULL;
  68 long long trigger_timeout = 0;
  69 char *trigger_cmd = NULL;
  70 char *trigger_remote_cmd = NULL;
  71
  72 static int prev_group_jobs;
  73
  74 unsigned long fio_debug = 0;
  75 unsigned int fio_debug_jobno = -1;
  76 unsigned int *fio_debug_jobp = NULL;
  77
  78 static char cmd_optstr[256];
  79 static int did_arg;
  80
  81 #define FIO_CLIENT_FLAG         (1 << 16)
  82
  83 /*
  84  * Command line options. These will contain the above, plus a few
  85  * extra that only pertain to fio itself and not jobs.
  86  */
  87 static struct option l_opts[FIO_NR_OPTIONS] = {
  88         {
  89                 .name           = (char *) "output",
  90                 .has_arg        = required_argument,
  91                 .val            = 'o' | FIO_CLIENT_FLAG,
  92         },
  93         {
  94                 .name           = (char *) "timeout",
  95                 .has_arg        = required_argument,
  96                 .val            = 't' | FIO_CLIENT_FLAG,
  97         },
  98         {
  99                 .name           = (char *) "latency-log",
 100                 .has_arg        = required_argument,
 101                 .val            = 'l' | FIO_CLIENT_FLAG,
 102         },
 103         {
 104                 .name           = (char *) "bandwidth-log",
 105                 .has_arg        = required_argument,
 106                 .val            = 'b' | FIO_CLIENT_FLAG,
 107         },
 108         {
 109                 .name           = (char *) "minimal",
 110                 .has_arg        = no_argument,
 111                 .val            = 'm' | FIO_CLIENT_FLAG,
 112         },
 113         {
 114                 .name           = (char *) "output-format",
 115                 .has_arg        = optional_argument,
 116                 .val            = 'F' | FIO_CLIENT_FLAG,
 117         },
 118         {
 119                 .name           = (char *) "append-terse",
 120                 .has_arg        = optional_argument,
 121                 .val            = 'f',
 122         },
 123         {
 124                 .name           = (char *) "version",
 125                 .has_arg        = no_argument,
 126                 .val            = 'v' | FIO_CLIENT_FLAG,
 127         },
 128         {
 129                 .name           = (char *) "help",
 130                 .has_arg        = no_argument,
 131                 .val            = 'h' | FIO_CLIENT_FLAG,
 132         },
 133         {
 134                 .name           = (char *) "cmdhelp",
 135                 .has_arg        = optional_argument,
 136                 .val            = 'c' | FIO_CLIENT_FLAG,
 137         },
 138         {
 139                 .name           = (char *) "enghelp",
 140                 .has_arg        = optional_argument,
 141                 .val            = 'i' | FIO_CLIENT_FLAG,
 142         },
 143         {
 144                 .name           = (char *) "showcmd",
 145                 .has_arg        = no_argument,
 146                 .val            = 's' | FIO_CLIENT_FLAG,
 147         },
 148         {
 149                 .name           = (char *) "readonly",
 150                 .has_arg        = no_argument,
 151                 .val            = 'r' | FIO_CLIENT_FLAG,
 152         },
 153         {
 154                 .name           = (char *) "eta",
 155                 .has_arg        = required_argument,
 156                 .val            = 'e' | FIO_CLIENT_FLAG,
 157         },
 158         {
 159                 .name           = (char *) "eta-newline",
 160                 .has_arg        = required_argument,
 161                 .val            = 'E' | FIO_CLIENT_FLAG,
 162         },
 163         {
 164                 .name           = (char *) "debug",
 165                 .has_arg        = required_argument,
 166                 .val            = 'd' | FIO_CLIENT_FLAG,
 167         },
 168         {
 169                 .name           = (char *) "parse-only",
 170                 .has_arg        = no_argument,
 171                 .val            = 'P' | FIO_CLIENT_FLAG,
 172         },
 173         {
 174                 .name           = (char *) "section",
 175                 .has_arg        = required_argument,
 176                 .val            = 'x' | FIO_CLIENT_FLAG,
 177         },
 178 #ifdef CONFIG_ZLIB
 179         {
 180                 .name           = (char *) "inflate-log",
 181                 .has_arg        = required_argument,
 182                 .val            = 'X' | FIO_CLIENT_FLAG,
 183         },
 184 #endif
 185         {
 186                 .name           = (char *) "alloc-size",
 187                 .has_arg        = required_argument,
 188                 .val            = 'a' | FIO_CLIENT_FLAG,
 189         },
 190         {
 191                 .name           = (char *) "profile",
 192                 .has_arg        = required_argument,
 193                 .val            = 'p' | FIO_CLIENT_FLAG,
 194         },
 195         {
 196                 .name           = (char *) "warnings-fatal",
 197                 .has_arg        = no_argument,
 198                 .val            = 'w' | FIO_CLIENT_FLAG,
 199         },
 200         {
 201                 .name           = (char *) "max-jobs",
 202                 .has_arg        = required_argument,
 203                 .val            = 'j' | FIO_CLIENT_FLAG,
 204         },
 205         {
 206                 .name           = (char *) "terse-version",
 207                 .has_arg        = required_argument,
 208                 .val            = 'V' | FIO_CLIENT_FLAG,
 209         },
 210         {
 211                 .name           = (char *) "server",
 212                 .has_arg        = optional_argument,
 213                 .val            = 'S',
 214         },
 215         {       .name           = (char *) "daemonize",
 216                 .has_arg        = required_argument,
 217                 .val            = 'D',
 218         },
 219         {
 220                 .name           = (char *) "client",
 221                 .has_arg        = required_argument,
 222                 .val            = 'C',
 223         },
 224         {
 225                 .name           = (char *) "remote-config",
 226                 .has_arg        = required_argument,
 227                 .val            = 'R',
 228         },
 229         {
 230                 .name           = (char *) "cpuclock-test",
 231                 .has_arg        = no_argument,
 232                 .val            = 'T',
 233         },
 234         {
 235                 .name           = (char *) "crctest",
 236                 .has_arg        = optional_argument,
 237                 .val            = 'G',
 238         },
 239         {
 240                 .name           = (char *) "idle-prof",
 241                 .has_arg        = required_argument,
 242                 .val            = 'I',
 243         },
 244         {
 245                 .name           = (char *) "status-interval",
 246                 .has_arg        = required_argument,
 247                 .val            = 'L',
 248         },
 249         {
 250                 .name           = (char *) "trigger-file",
 251                 .has_arg        = required_argument,
 252                 .val            = 'W',
 253         },
 254         {
 255                 .name           = (char *) "trigger-timeout",
 256                 .has_arg        = required_argument,
 257                 .val            = 'B',
 258         },
 259         {
 260                 .name           = (char *) "trigger",
 261                 .has_arg        = required_argument,
 262                 .val            = 'H',
 263         },
 264         {
 265                 .name           = (char *) "trigger-remote",
 266                 .has_arg        = required_argument,
 267                 .val            = 'J',
 268         },
 269         {
 270                 .name           = NULL,
 271         },
 272 };
 273
 274 void free_threads_shm(void)
 275 {
 276         if (threads) {
 277                 void *tp = threads;
 278 #ifndef CONFIG_NO_SHM
 279                 struct shmid_ds sbuf;
 280
 281                 threads = NULL;
 282                 shmdt(tp);
 283                 shmctl(shm_id, IPC_RMID, &sbuf);
 284                 shm_id = -1;
 285 #else
 286                 threads = NULL;
 287                 free(tp);
 288 #endif
 289         }
 290 }
 291
 292 static void free_shm(void)
 293 {
 294         if (threads) {
 295                 file_hash_exit();
 296                 flow_exit();
 297                 fio_debug_jobp = NULL;
 298                 free_threads_shm();
 299         }
 300
 301         free(trigger_file);
 302         free(trigger_cmd);
 303         free(trigger_remote_cmd);
 304         trigger_file = trigger_cmd = trigger_remote_cmd = NULL;
 305
 306         options_free(fio_options, &def_thread);
 307         fio_filelock_exit();
 308         scleanup();
 309 }
 310
 311 /*
 312  * The thread area is shared between the main process and the job
 313  * threads/processes. So setup a shared memory segment that will hold
 314  * all the job info. We use the end of the region for keeping track of
 315  * open files across jobs, for file sharing.
 316  */
 317 static int setup_thread_area(void)
 318 {
 319         void *hash;
 320
 321         if (threads)
 322                 return 0;
 323
 324         /*
 325          * 1024 is too much on some machines, scale max_jobs if
 326          * we get a failure that looks like too large a shm segment
 327          */
 328         do {
 329                 size_t size = max_jobs * sizeof(struct thread_data);
 330
 331                 size += file_hash_size;
 332                 size += sizeof(unsigned int);
 333
 334 #ifndef CONFIG_NO_SHM
 335                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 336                 if (shm_id != -1)
 337                         break;
 338                 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
 339                         perror("shmget");
 340                         break;
 341                 }
 342 #else
 343                 threads = malloc(size);
 344                 if (threads)
 345                         break;
 346 #endif
 347
 348                 max_jobs >>= 1;
 349         } while (max_jobs);
 350
 351 #ifndef CONFIG_NO_SHM
 352         if (shm_id == -1)
 353                 return 1;
 354
 355         threads = shmat(shm_id, NULL, 0);
 356         if (threads == (void *) -1) {
 357                 perror("shmat");
 358                 return 1;
 359         }
 360 #endif
 361
 362         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 363         hash = (void *) threads + max_jobs * sizeof(struct thread_data);
 364         fio_debug_jobp = (void *) hash + file_hash_size;
 365         *fio_debug_jobp = -1;
 366         file_hash_init(hash);
 367
 368         flow_init();
 369
 370         return 0;
 371 }
 372
 373 static void set_cmd_options(struct thread_data *td)
 374 {
 375         struct thread_options *o = &td->o;
 376
 377         if (!o->timeout)
 378                 o->timeout = def_timeout;
 379 }
 380
 381 /*
 382  * Return a free job structure.
 383  */
 384 static struct thread_data *get_new_job(int global, struct thread_data *parent,
 385                                        int preserve_eo, const char *jobname)
 386 {
 387         struct thread_data *td;
 388
 389         if (global) {
 390                 set_cmd_options(&def_thread);
 391                 return &def_thread;
 392         }
 393         if (setup_thread_area()) {
 394                 log_err("error: failed to setup shm segment\n");
 395                 return NULL;
 396         }
 397         if (thread_number >= max_jobs) {
 398                 log_err("error: maximum number of jobs (%d) reached.\n",
 399                                 max_jobs);
 400                 return NULL;
 401         }
 402
 403         td = &threads[thread_number++];
 404         *td = *parent;
 405
 406         td->io_ops = NULL;
 407         if (!preserve_eo)
 408                 td->eo = NULL;
 409
 410         td->o.uid = td->o.gid = -1U;
 411
 412         dup_files(td, parent);
 413         fio_options_mem_dupe(td);
 414
 415         profile_add_hooks(td);
 416
 417         td->thread_number = thread_number;
 418         td->subjob_number = 0;
 419
 420         if (jobname)
 421                 td->o.name = strdup(jobname);
 422
 423         if (!parent->o.group_reporting)
 424                 stat_number++;
 425
 426         set_cmd_options(td);
 427         return td;
 428 }
 429
 430 static void put_job(struct thread_data *td)
 431 {
 432         if (td == &def_thread)
 433                 return;
 434
 435         profile_td_exit(td);
 436         flow_exit_job(td);
 437
 438         if (td->error)
 439                 log_info("fio: %s\n", td->verror);
 440
 441         fio_options_free(td);
 442         if (td->io_ops)
 443                 free_ioengine(td);
 444
 445         if (td->o.name)
 446                 free(td->o.name);
 447
 448         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 449         thread_number--;
 450 }
 451
 452 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 453 {
 454         unsigned int bs = td->o.min_bs[ddir];
 455
 456         assert(ddir_rw(ddir));
 457
 458         if (td->o.rate[ddir])
 459                 td->rate_bps[ddir] = td->o.rate[ddir];
 460         else
 461                 td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs;
 462
 463         if (!td->rate_bps[ddir]) {
 464                 log_err("rate lower than supported\n");
 465                 return -1;
 466         }
 467
 468         td->rate_pending_usleep[ddir] = 0;
 469         return 0;
 470 }
 471
 472 static int setup_rate(struct thread_data *td)
 473 {
 474         int ret = 0;
 475
 476         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
 477                 ret = __setup_rate(td, DDIR_READ);
 478         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
 479                 ret |= __setup_rate(td, DDIR_WRITE);
 480         if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
 481                 ret |= __setup_rate(td, DDIR_TRIM);
 482
 483         return ret;
 484 }
 485
 486 static int fixed_block_size(struct thread_options *o)
 487 {
 488         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 489                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 490                 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
 491                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
 492                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
 493 }
 494
 495
 496 static unsigned long long get_rand_start_delay(struct thread_data *td)
 497 {
 498         unsigned long long delayrange;
 499         unsigned long r;
 500
 501         delayrange = td->o.start_delay_high - td->o.start_delay;
 502
 503         r = __rand(&td->delay_state);
 504         delayrange = (unsigned long long) ((double) delayrange * (r / (FRAND_MAX + 1.0)));
 505
 506         delayrange += td->o.start_delay;
 507         return delayrange;
 508 }
 509
 510 /*
 511  * Lazy way of fixing up options that depend on each other. We could also
 512  * define option callback handlers, but this is easier.
 513  */
 514 static int fixup_options(struct thread_data *td)
 515 {
 516         struct thread_options *o = &td->o;
 517         int ret = 0;
 518
 519 #ifndef FIO_HAVE_PSHARED_MUTEX
 520         if (!o->use_thread) {
 521                 log_info("fio: this platform does not support process shared"
 522                          " mutexes, forcing use of threads. Use the 'thread'"
 523                          " option to get rid of this warning.\n");
 524                 o->use_thread = 1;
 525                 ret = warnings_fatal;
 526         }
 527 #endif
 528
 529         if (o->write_iolog_file && o->read_iolog_file) {
 530                 log_err("fio: read iolog overrides write_iolog\n");
 531                 free(o->write_iolog_file);
 532                 o->write_iolog_file = NULL;
 533                 ret = warnings_fatal;
 534         }
 535
 536         /*
 537          * only really works with 1 file
 538          */
 539         if (o->zone_size && o->open_files > 1)
 540                 o->zone_size = 0;
 541
 542         /*
 543          * If zone_range isn't specified, backward compatibility dictates it
 544          * should be made equal to zone_size.
 545          */
 546         if (o->zone_size && !o->zone_range)
 547                 o->zone_range = o->zone_size;
 548
 549         /*
 550          * Reads can do overwrites, we always need to pre-create the file
 551          */
 552         if (td_read(td) || td_rw(td))
 553                 o->overwrite = 1;
 554
 555         if (!o->min_bs[DDIR_READ])
 556                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
 557         if (!o->max_bs[DDIR_READ])
 558                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 559         if (!o->min_bs[DDIR_WRITE])
 560                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 561         if (!o->max_bs[DDIR_WRITE])
 562                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 563         if (!o->min_bs[DDIR_TRIM])
 564                 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 565         if (!o->max_bs[DDIR_TRIM])
 566                 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 567
 568         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 569         o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
 570
 571         /*
 572          * For random IO, allow blockalign offset other than min_bs.
 573          */
 574         if (!o->ba[DDIR_READ] || !td_random(td))
 575                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
 576         if (!o->ba[DDIR_WRITE] || !td_random(td))
 577                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
 578         if (!o->ba[DDIR_TRIM] || !td_random(td))
 579                 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
 580
 581         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 582             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
 583             o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
 584             !o->norandommap) {
 585                 log_err("fio: Any use of blockalign= turns off randommap\n");
 586                 o->norandommap = 1;
 587                 ret = warnings_fatal;
 588         }
 589
 590         if (!o->file_size_high)
 591                 o->file_size_high = o->file_size_low;
 592
 593         if (o->start_delay_high)
 594                 o->start_delay = get_rand_start_delay(td);
 595
 596         if (o->norandommap && o->verify != VERIFY_NONE
 597             && !fixed_block_size(o))  {
 598                 log_err("fio: norandommap given for variable block sizes, "
 599                         "verify disabled\n");
 600                 o->verify = VERIFY_NONE;
 601                 ret = warnings_fatal;
 602         }
 603         if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
 604                 log_err("fio: bs_unaligned may not work with raw io\n");
 605
 606         /*
 607          * thinktime_spin must be less than thinktime
 608          */
 609         if (o->thinktime_spin > o->thinktime)
 610                 o->thinktime_spin = o->thinktime;
 611
 612         /*
 613          * The low water mark cannot be bigger than the iodepth
 614          */
 615         if (o->iodepth_low > o->iodepth || !o->iodepth_low)
 616                 o->iodepth_low = o->iodepth;
 617
 618         /*
 619          * If batch number isn't set, default to the same as iodepth
 620          */
 621         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 622                 o->iodepth_batch = o->iodepth;
 623
 624         if (o->nr_files > td->files_index)
 625                 o->nr_files = td->files_index;
 626
 627         if (o->open_files > o->nr_files || !o->open_files)
 628                 o->open_files = o->nr_files;
 629
 630         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
 631             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
 632             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 633             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 634                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 635                 ret = 1;
 636         }
 637         if ((o->rate[DDIR_READ] < o->ratemin[DDIR_READ]) ||
 638             (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE]) ||
 639             (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM]) ||
 640             (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ]) ||
 641             (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE]) ||
 642             (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM])) {
 643                 log_err("fio: minimum rate exceeds rate\n");
 644                 ret = 1;
 645         }
 646
 647         if (!o->timeout && o->time_based) {
 648                 log_err("fio: time_based requires a runtime/timeout setting\n");
 649                 o->time_based = 0;
 650                 ret = warnings_fatal;
 651         }
 652
 653         if (o->fill_device && !o->size)
 654                 o->size = -1ULL;
 655
 656         if (o->verify != VERIFY_NONE) {
 657                 if (td_write(td) && o->do_verify && o->numjobs > 1) {
 658                         log_info("Multiple writers may overwrite blocks that "
 659                                 "belong to other jobs. This can cause "
 660                                 "verification failures.\n");
 661                         ret = warnings_fatal;
 662                 }
 663
 664                 o->refill_buffers = 1;
 665                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 666                     !o->verify_interval)
 667                         o->verify_interval = o->min_bs[DDIR_WRITE];
 668
 669                 /*
 670                  * Verify interval must be smaller or equal to the
 671                  * write size.
 672                  */
 673                 if (o->verify_interval > o->min_bs[DDIR_WRITE])
 674                         o->verify_interval = o->min_bs[DDIR_WRITE];
 675                 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
 676                         o->verify_interval = o->min_bs[DDIR_READ];
 677         }
 678
 679         if (o->pre_read) {
 680                 o->invalidate_cache = 0;
 681                 if (td->io_ops->flags & FIO_PIPEIO) {
 682                         log_info("fio: cannot pre-read files with an IO engine"
 683                                  " that isn't seekable. Pre-read disabled.\n");
 684                         ret = warnings_fatal;
 685                 }
 686         }
 687
 688         if (!o->unit_base) {
 689                 if (td->io_ops->flags & FIO_BIT_BASED)
 690                         o->unit_base = 1;
 691                 else
 692                         o->unit_base = 8;
 693         }
 694
 695 #ifndef CONFIG_FDATASYNC
 696         if (o->fdatasync_blocks) {
 697                 log_info("fio: this platform does not support fdatasync()"
 698                          " falling back to using fsync().  Use the 'fsync'"
 699                          " option instead of 'fdatasync' to get rid of"
 700                          " this warning\n");
 701                 o->fsync_blocks = o->fdatasync_blocks;
 702                 o->fdatasync_blocks = 0;
 703                 ret = warnings_fatal;
 704         }
 705 #endif
 706
 707 #ifdef WIN32
 708         /*
 709          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 710          * so fail if we're passed those flags
 711          */
 712         if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
 713                 log_err("fio: Windows does not support direct or non-buffered io with"
 714                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 715                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 716                 ret = 1;
 717         }
 718 #endif
 719
 720         /*
 721          * For fully compressible data, just zero them at init time.
 722          * It's faster than repeatedly filling it.
 723          */
 724         if (td->o.compress_percentage == 100) {
 725                 td->o.zero_buffers = 1;
 726                 td->o.compress_percentage = 0;
 727         }
 728
 729         /*
 730          * Using a non-uniform random distribution excludes usage of
 731          * a random map
 732          */
 733         if (td->o.random_distribution != FIO_RAND_DIST_RANDOM)
 734                 td->o.norandommap = 1;
 735
 736         /*
 737          * If size is set but less than the min block size, complain
 738          */
 739         if (o->size && o->size < td_min_bs(td)) {
 740                 log_err("fio: size too small, must be larger than the IO size: %llu\n", (unsigned long long) o->size);
 741                 ret = 1;
 742         }
 743
 744         /*
 745          * O_ATOMIC implies O_DIRECT
 746          */
 747         if (td->o.oatomic)
 748                 td->o.odirect = 1;
 749
 750         /*
 751          * If randseed is set, that overrides randrepeat
 752          */
 753         if (td->o.rand_seed)
 754                 td->o.rand_repeatable = 0;
 755
 756         if ((td->io_ops->flags & FIO_NOEXTEND) && td->o.file_append) {
 757                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
 758                 ret = 1;
 759         }
 760
 761         if (fio_option_is_set(o, gtod_cpu)) {
 762                 fio_gtod_init();
 763                 fio_gtod_set_cpu(o->gtod_cpu);
 764                 fio_gtod_offload = 1;
 765         }
 766
 767         return ret;
 768 }
 769
 770 /*
 771  * This function leaks the buffer
 772  */
 773 char *fio_uint_to_kmg(unsigned int val)
 774 {
 775         char *buf = malloc(32);
 776         char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
 777         char *p = post;
 778
 779         do {
 780                 if (val & 1023)
 781                         break;
 782
 783                 val >>= 10;
 784                 p++;
 785         } while (*p);
 786
 787         snprintf(buf, 32, "%u%c", val, *p);
 788         return buf;
 789 }
 790
 791 /* External engines are specified by "external:name.o") */
 792 static const char *get_engine_name(const char *str)
 793 {
 794         char *p = strstr(str, ":");
 795
 796         if (!p)
 797                 return str;
 798
 799         p++;
 800         strip_blank_front(&p);
 801         strip_blank_end(p);
 802         return p;
 803 }
 804
 805 static int exists_and_not_file(const char *filename)
 806 {
 807         struct stat sb;
 808
 809         if (lstat(filename, &sb) == -1)
 810                 return 0;
 811
 812         /* \\.\ is the device namespace in Windows, where every file
 813          * is a device node */
 814         if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
 815                 return 0;
 816
 817         return 1;
 818 }
 819
 820 static void td_fill_rand_seeds_internal(struct thread_data *td)
 821 {
 822         init_rand_seed(&td->bsrange_state, td->rand_seeds[FIO_RAND_BS_OFF]);
 823         init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF]);
 824         init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF]);
 825
 826         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 827                 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF]);
 828
 829         init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF]);
 830         init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF]);
 831         init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY]);
 832
 833         if (!td_random(td))
 834                 return;
 835
 836         if (td->o.rand_repeatable)
 837                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
 838
 839         init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF]);
 840         init_rand_seed(&td->seq_rand_state[DDIR_READ], td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF]);
 841         init_rand_seed(&td->seq_rand_state[DDIR_WRITE], td->rand_seeds[FIO_RAND_SEQ_RAND_WRITE_OFF]);
 842         init_rand_seed(&td->seq_rand_state[DDIR_TRIM], td->rand_seeds[FIO_RAND_SEQ_RAND_TRIM_OFF]);
 843 }
 844
 845 void td_fill_rand_seeds(struct thread_data *td)
 846 {
 847         if (td->o.allrand_repeatable) {
 848                 unsigned int i;
 849
 850                 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
 851                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
 852                                 + i;
 853         }
 854
 855         td_fill_rand_seeds_internal(td);
 856
 857         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF]);
 858         frand_copy(&td->buf_state_prev, &td->buf_state);
 859
 860         init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF]);
 861 }
 862
 863 /*
 864  * Initializes the ioengine configured for a job, if it has not been done so
 865  * already.
 866  */
 867 int ioengine_load(struct thread_data *td)
 868 {
 869         const char *engine;
 870
 871         /*
 872          * Engine has already been loaded.
 873          */
 874         if (td->io_ops)
 875                 return 0;
 876         if (!td->o.ioengine) {
 877                 log_err("fio: internal fault, no IO engine specified\n");
 878                 return 1;
 879         }
 880
 881         engine = get_engine_name(td->o.ioengine);
 882         td->io_ops = load_ioengine(td, engine);
 883         if (!td->io_ops) {
 884                 log_err("fio: failed to load engine %s\n", engine);
 885                 return 1;
 886         }
 887
 888         if (td->io_ops->option_struct_size && td->io_ops->options) {
 889                 /*
 890                  * In cases where td->eo is set, clone it for a child thread.
 891                  * This requires that the parent thread has the same ioengine,
 892                  * but that requirement must be enforced by the code which
 893                  * cloned the thread.
 894                  */
 895                 void *origeo = td->eo;
 896                 /*
 897                  * Otherwise use the default thread options.
 898                  */
 899                 if (!origeo && td != &def_thread && def_thread.eo &&
 900                     def_thread.io_ops->options == td->io_ops->options)
 901                         origeo = def_thread.eo;
 902
 903                 options_init(td->io_ops->options);
 904                 td->eo = malloc(td->io_ops->option_struct_size);
 905                 /*
 906                  * Use the default thread as an option template if this uses the
 907                  * same options structure and there are non-default options
 908                  * used.
 909                  */
 910                 if (origeo) {
 911                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
 912                         options_mem_dupe(td->eo, td->io_ops->options);
 913                 } else {
 914                         memset(td->eo, 0, td->io_ops->option_struct_size);
 915                         fill_default_options(td->eo, td->io_ops->options);
 916                 }
 917                 *(struct thread_data **)td->eo = td;
 918         }
 919
 920         return 0;
 921 }
 922
 923 static void init_flags(struct thread_data *td)
 924 {
 925         struct thread_options *o = &td->o;
 926
 927         if (o->verify_backlog)
 928                 td->flags |= TD_F_VER_BACKLOG;
 929         if (o->trim_backlog)
 930                 td->flags |= TD_F_TRIM_BACKLOG;
 931         if (o->read_iolog_file)
 932                 td->flags |= TD_F_READ_IOLOG;
 933         if (o->refill_buffers)
 934                 td->flags |= TD_F_REFILL_BUFFERS;
 935         /*
 936          * Scramble by default, but not if zero_buffer is true and has been
 937          * set. But if scramble_buffers has been set, always scramble.
 938          */
 939         if (o->scramble_buffers && ((!o->zero_buffers &&
 940             fio_option_is_set(o, zero_buffers)) ||
 941             fio_option_is_set(o, scramble_buffers)))
 942                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
 943         if (o->verify != VERIFY_NONE)
 944                 td->flags |= TD_F_VER_NONE;
 945 }
 946
 947 static int setup_random_seeds(struct thread_data *td)
 948 {
 949         unsigned long seed;
 950         unsigned int i;
 951
 952         if (!td->o.rand_repeatable && !td->o.rand_seed)
 953                 return init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds));
 954
 955         if (!td->o.rand_seed)
 956                 seed = 0x89;
 957         else
 958                 seed = td->o.rand_seed;
 959
 960         for (i = 0; i < 4; i++)
 961                 seed *= 0x9e370001UL;
 962
 963         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
 964                 td->rand_seeds[i] = seed;
 965                 seed *= 0x9e370001UL;
 966         }
 967
 968         td_fill_rand_seeds(td);
 969         return 0;
 970 }
 971
 972 enum {
 973         FPRE_NONE = 0,
 974         FPRE_JOBNAME,
 975         FPRE_JOBNUM,
 976         FPRE_FILENUM
 977 };
 978
 979 static struct fpre_keyword {
 980         const char *keyword;
 981         size_t strlen;
 982         int key;
 983 } fpre_keywords[] = {
 984         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
 985         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
 986         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
 987         { .keyword = NULL, },
 988         };
 989
 990 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
 991                            const char *jobname, int jobnum, int filenum)
 992 {
 993         struct fpre_keyword *f;
 994         char copy[PATH_MAX];
 995         size_t dst_left = PATH_MAX - 1;
 996
 997         if (!o->filename_format || !strlen(o->filename_format)) {
 998                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
 999                 return NULL;
1000         }
1001
1002         for (f = &fpre_keywords[0]; f->keyword; f++)
1003                 f->strlen = strlen(f->keyword);
1004
1005         buf[buf_size - 1] = '\0';
1006         strncpy(buf, o->filename_format, buf_size - 1);
1007
1008         memset(copy, 0, sizeof(copy));
1009         for (f = &fpre_keywords[0]; f->keyword; f++) {
1010                 do {
1011                         size_t pre_len, post_start = 0;
1012                         char *str, *dst = copy;
1013
1014                         str = strcasestr(buf, f->keyword);
1015                         if (!str)
1016                                 break;
1017
1018                         pre_len = str - buf;
1019                         if (strlen(str) != f->strlen)
1020                                 post_start = pre_len + f->strlen;
1021
1022                         if (pre_len) {
1023                                 strncpy(dst, buf, pre_len);
1024                                 dst += pre_len;
1025                                 dst_left -= pre_len;
1026                         }
1027
1028                         switch (f->key) {
1029                         case FPRE_JOBNAME: {
1030                                 int ret;
1031
1032                                 ret = snprintf(dst, dst_left, "%s", jobname);
1033                                 if (ret < 0)
1034                                         break;
1035                                 dst += ret;
1036                                 dst_left -= ret;
1037                                 break;
1038                                 }
1039                         case FPRE_JOBNUM: {
1040                                 int ret;
1041
1042                                 ret = snprintf(dst, dst_left, "%d", jobnum);
1043                                 if (ret < 0)
1044                                         break;
1045                                 dst += ret;
1046                                 dst_left -= ret;
1047                                 break;
1048                                 }
1049                         case FPRE_FILENUM: {
1050                                 int ret;
1051
1052                                 ret = snprintf(dst, dst_left, "%d", filenum);
1053                                 if (ret < 0)
1054                                         break;
1055                                 dst += ret;
1056                                 dst_left -= ret;
1057                                 break;
1058                                 }
1059                         default:
1060                                 assert(0);
1061                                 break;
1062                         }
1063
1064                         if (post_start)
1065                                 strncpy(dst, buf + post_start, dst_left);
1066
1067                         strncpy(buf, copy, buf_size - 1);
1068                 } while (1);
1069         }
1070
1071         return buf;
1072 }
1073
1074 int parse_dryrun(void)
1075 {
1076         return dump_cmdline || parse_only;
1077 }
1078
1079 /*
1080  * Adds a job to the list of things todo. Sanitizes the various options
1081  * to make sure we don't have conflicts, and initializes various
1082  * members of td.
1083  */
1084 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1085                    int recursed, int client_type)
1086 {
1087         unsigned int i;
1088         char fname[PATH_MAX];
1089         int numjobs, file_alloced;
1090         struct thread_options *o = &td->o;
1091         char logname[PATH_MAX + 32];
1092
1093         /*
1094          * the def_thread is just for options, it's not a real job
1095          */
1096         if (td == &def_thread)
1097                 return 0;
1098
1099         init_flags(td);
1100
1101         /*
1102          * if we are just dumping the output command line, don't add the job
1103          */
1104         if (parse_dryrun()) {
1105                 put_job(td);
1106                 return 0;
1107         }
1108
1109         td->client_type = client_type;
1110
1111         if (profile_td_init(td))
1112                 goto err;
1113
1114         if (ioengine_load(td))
1115                 goto err;
1116
1117         if (o->odirect)
1118                 td->io_ops->flags |= FIO_RAWIO;
1119
1120         file_alloced = 0;
1121         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1122                 file_alloced = 1;
1123
1124                 if (o->nr_files == 1 && exists_and_not_file(jobname))
1125                         add_file(td, jobname, job_add_num, 0);
1126                 else {
1127                         for (i = 0; i < o->nr_files; i++)
1128                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1129                 }
1130         }
1131
1132         if (fixup_options(td))
1133                 goto err;
1134
1135         flow_init_job(td);
1136
1137         /*
1138          * IO engines only need this for option callbacks, and the address may
1139          * change in subprocesses.
1140          */
1141         if (td->eo)
1142                 *(struct thread_data **)td->eo = NULL;
1143
1144         if (td->io_ops->flags & FIO_DISKLESSIO) {
1145                 struct fio_file *f;
1146
1147                 for_each_file(td, f, i)
1148                         f->real_file_size = -1ULL;
1149         }
1150
1151         td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
1152
1153         td->ts.clat_percentiles = o->clat_percentiles;
1154         td->ts.percentile_precision = o->percentile_precision;
1155         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1156
1157         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1158                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1159                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1160                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1161                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1162         }
1163         td->ddir_seq_nr = o->ddir_seq_nr;
1164
1165         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1166                 prev_group_jobs = 0;
1167                 groupid++;
1168         }
1169
1170         td->groupid = groupid;
1171         prev_group_jobs++;
1172
1173         if (setup_random_seeds(td)) {
1174                 td_verror(td, errno, "init_random_state");
1175                 goto err;
1176         }
1177
1178         if (setup_rate(td))
1179                 goto err;
1180
1181         if (o->lat_log_file) {
1182                 struct log_params p = {
1183                         .td = td,
1184                         .avg_msec = o->log_avg_msec,
1185                         .log_type = IO_LOG_TYPE_LAT,
1186                         .log_offset = o->log_offset,
1187                         .log_gz = o->log_gz,
1188                         .log_gz_store = o->log_gz_store,
1189                 };
1190                 const char *suf;
1191
1192                 if (p.log_gz_store)
1193                         suf = "log.fz";
1194                 else
1195                         suf = "log";
1196
1197                 snprintf(logname, sizeof(logname), "%s_lat.%d.%s",
1198                                 o->lat_log_file, td->thread_number, suf);
1199                 setup_log(&td->lat_log, &p, logname);
1200                 snprintf(logname, sizeof(logname), "%s_slat.%d.%s",
1201                                 o->lat_log_file, td->thread_number, suf);
1202                 setup_log(&td->slat_log, &p, logname);
1203                 snprintf(logname, sizeof(logname), "%s_clat.%d.%s",
1204                                 o->lat_log_file, td->thread_number, suf);
1205                 setup_log(&td->clat_log, &p, logname);
1206         }
1207         if (o->bw_log_file) {
1208                 struct log_params p = {
1209                         .td = td,
1210                         .avg_msec = o->log_avg_msec,
1211                         .log_type = IO_LOG_TYPE_BW,
1212                         .log_offset = o->log_offset,
1213                         .log_gz = o->log_gz,
1214                         .log_gz_store = o->log_gz_store,
1215                 };
1216                 const char *suf;
1217
1218                 if (p.log_gz_store)
1219                         suf = "log.fz";
1220                 else
1221                         suf = "log";
1222
1223                 snprintf(logname, sizeof(logname), "%s_bw.%d.%s",
1224                                 o->bw_log_file, td->thread_number, suf);
1225                 setup_log(&td->bw_log, &p, logname);
1226         }
1227         if (o->iops_log_file) {
1228                 struct log_params p = {
1229                         .td = td,
1230                         .avg_msec = o->log_avg_msec,
1231                         .log_type = IO_LOG_TYPE_IOPS,
1232                         .log_offset = o->log_offset,
1233                         .log_gz = o->log_gz,
1234                         .log_gz_store = o->log_gz_store,
1235                 };
1236                 const char *suf;
1237
1238                 if (p.log_gz_store)
1239                         suf = "log.fz";
1240                 else
1241                         suf = "log";
1242
1243                 snprintf(logname, sizeof(logname), "%s_iops.%d.%s",
1244                                 o->iops_log_file, td->thread_number, suf);
1245                 setup_log(&td->iops_log, &p, logname);
1246         }
1247
1248         if (!o->name)
1249                 o->name = strdup(jobname);
1250
1251         if (output_format == FIO_OUTPUT_NORMAL) {
1252                 if (!job_add_num) {
1253                         if (is_backend && !recursed)
1254                                 fio_server_send_add_job(td);
1255
1256                         if (!(td->io_ops->flags & FIO_NOIO)) {
1257                                 char *c1, *c2, *c3, *c4;
1258                                 char *c5 = NULL, *c6 = NULL;
1259
1260                                 c1 = fio_uint_to_kmg(o->min_bs[DDIR_READ]);
1261                                 c2 = fio_uint_to_kmg(o->max_bs[DDIR_READ]);
1262                                 c3 = fio_uint_to_kmg(o->min_bs[DDIR_WRITE]);
1263                                 c4 = fio_uint_to_kmg(o->max_bs[DDIR_WRITE]);
1264
1265                                 if (!o->bs_is_seq_rand) {
1266                                         c5 = fio_uint_to_kmg(o->min_bs[DDIR_TRIM]);
1267                                         c6 = fio_uint_to_kmg(o->max_bs[DDIR_TRIM]);
1268                                 }
1269
1270                                 log_info("%s: (g=%d): rw=%s, ", td->o.name,
1271                                                         td->groupid,
1272                                                         ddir_str(o->td_ddir));
1273
1274                                 if (o->bs_is_seq_rand)
1275                                         log_info("bs(seq/rand)=%s-%s/%s-%s, ",
1276                                                         c1, c2, c3, c4);
1277                                 else
1278                                         log_info("bs=%s-%s/%s-%s/%s-%s, ",
1279                                                         c1, c2, c3, c4, c5, c6);
1280
1281                                 log_info("ioengine=%s, iodepth=%u\n",
1282                                                 td->io_ops->name, o->iodepth);
1283
1284                                 free(c1);
1285                                 free(c2);
1286                                 free(c3);
1287                                 free(c4);
1288                                 free(c5);
1289                                 free(c6);
1290                         }
1291                 } else if (job_add_num == 1)
1292                         log_info("...\n");
1293         }
1294
1295         /*
1296          * recurse add identical jobs, clear numjobs and stonewall options
1297          * as they don't apply to sub-jobs
1298          */
1299         numjobs = o->numjobs;
1300         while (--numjobs) {
1301                 struct thread_data *td_new = get_new_job(0, td, 1, jobname);
1302
1303                 if (!td_new)
1304                         goto err;
1305
1306                 td_new->o.numjobs = 1;
1307                 td_new->o.stonewall = 0;
1308                 td_new->o.new_group = 0;
1309                 td_new->subjob_number = numjobs;
1310
1311                 if (file_alloced) {
1312                         if (td_new->files) {
1313                                 struct fio_file *f;
1314                                 for_each_file(td_new, f, i) {
1315                                         if (f->file_name)
1316                                                 sfree(f->file_name);
1317                                         sfree(f);
1318                                 }
1319                                 free(td_new->files);
1320                                 td_new->files = NULL;
1321                         }
1322                         td_new->files_index = 0;
1323                         td_new->files_size = 0;
1324                         if (td_new->o.filename) {
1325                                 free(td_new->o.filename);
1326                                 td_new->o.filename = NULL;
1327                         }
1328                 }
1329
1330                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1331                         goto err;
1332         }
1333
1334         return 0;
1335 err:
1336         put_job(td);
1337         return -1;
1338 }
1339
1340 /*
1341  * Parse as if 'o' was a command line
1342  */
1343 void add_job_opts(const char **o, int client_type)
1344 {
1345         struct thread_data *td, *td_parent;
1346         int i, in_global = 1;
1347         char jobname[32];
1348
1349         i = 0;
1350         td_parent = td = NULL;
1351         while (o[i]) {
1352                 if (!strncmp(o[i], "name", 4)) {
1353                         in_global = 0;
1354                         if (td)
1355                                 add_job(td, jobname, 0, 0, client_type);
1356                         td = NULL;
1357                         sprintf(jobname, "%s", o[i] + 5);
1358                 }
1359                 if (in_global && !td_parent)
1360                         td_parent = get_new_job(1, &def_thread, 0, jobname);
1361                 else if (!in_global && !td) {
1362                         if (!td_parent)
1363                                 td_parent = &def_thread;
1364                         td = get_new_job(0, td_parent, 0, jobname);
1365                 }
1366                 if (in_global)
1367                         fio_options_parse(td_parent, (char **) &o[i], 1, 0);
1368                 else
1369                         fio_options_parse(td, (char **) &o[i], 1, 0);
1370                 i++;
1371         }
1372
1373         if (td)
1374                 add_job(td, jobname, 0, 0, client_type);
1375 }
1376
1377 static int skip_this_section(const char *name)
1378 {
1379         int i;
1380
1381         if (!nr_job_sections)
1382                 return 0;
1383         if (!strncmp(name, "global", 6))
1384                 return 0;
1385
1386         for (i = 0; i < nr_job_sections; i++)
1387                 if (!strcmp(job_sections[i], name))
1388                         return 0;
1389
1390         return 1;
1391 }
1392
1393 static int is_empty_or_comment(char *line)
1394 {
1395         unsigned int i;
1396
1397         for (i = 0; i < strlen(line); i++) {
1398                 if (line[i] == ';')
1399                         return 1;
1400                 if (line[i] == '#')
1401                         return 1;
1402                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1403                         return 0;
1404         }
1405
1406         return 1;
1407 }
1408
1409 /*
1410  * This is our [ini] type file parser.
1411  */
1412 int __parse_jobs_ini(struct thread_data *td,
1413                 char *file, int is_buf, int stonewall_flag, int type,
1414                 int nested, char *name, char ***popts, int *aopts, int *nopts)
1415 {
1416         unsigned int global = 0;
1417         char *string;
1418         FILE *f;
1419         char *p;
1420         int ret = 0, stonewall;
1421         int first_sect = 1;
1422         int skip_fgets = 0;
1423         int inside_skip = 0;
1424         char **opts;
1425         int i, alloc_opts, num_opts;
1426
1427         dprint(FD_PARSE, "Parsing ini file %s\n", file);
1428         assert(td || !nested);
1429
1430         if (is_buf)
1431                 f = NULL;
1432         else {
1433                 if (!strcmp(file, "-"))
1434                         f = stdin;
1435                 else
1436                         f = fopen(file, "r");
1437
1438                 if (!f) {
1439                         int __err = errno;
1440
1441                         log_err("fio: unable to open '%s' job file\n", file);
1442                         if (td)
1443                                 td_verror(td, __err, "job file open");
1444                         return 1;
1445                 }
1446         }
1447
1448         string = malloc(4096);
1449
1450         /*
1451          * it's really 256 + small bit, 280 should suffice
1452          */
1453         if (!nested) {
1454                 name = malloc(280);
1455                 memset(name, 0, 280);
1456         }
1457
1458         opts = NULL;
1459         if (nested && popts) {
1460                 opts = *popts;
1461                 alloc_opts = *aopts;
1462                 num_opts = *nopts;
1463         }
1464
1465         if (!opts) {
1466                 alloc_opts = 8;
1467                 opts = malloc(sizeof(char *) * alloc_opts);
1468                 num_opts = 0;
1469         }
1470
1471         stonewall = stonewall_flag;
1472         do {
1473                 /*
1474                  * if skip_fgets is set, we already have loaded a line we
1475                  * haven't handled.
1476                  */
1477                 if (!skip_fgets) {
1478                         if (is_buf)
1479                                 p = strsep(&file, "\n");
1480                         else
1481                                 p = fgets(string, 4096, f);
1482                         if (!p)
1483                                 break;
1484                 }
1485
1486                 skip_fgets = 0;
1487                 strip_blank_front(&p);
1488                 strip_blank_end(p);
1489
1490                 dprint(FD_PARSE, "%s\n", p);
1491                 if (is_empty_or_comment(p))
1492                         continue;
1493
1494                 if (!nested) {
1495                         if (sscanf(p, "[%255[^\n]]", name) != 1) {
1496                                 if (inside_skip)
1497                                         continue;
1498
1499                                 log_err("fio: option <%s> outside of "
1500                                         "[] job section\n", p);
1501                                 ret = 1;
1502                                 break;
1503                         }
1504
1505                         name[strlen(name) - 1] = '\0';
1506
1507                         if (skip_this_section(name)) {
1508                                 inside_skip = 1;
1509                                 continue;
1510                         } else
1511                                 inside_skip = 0;
1512
1513                         dprint(FD_PARSE, "Parsing section [%s]\n", name);
1514
1515                         global = !strncmp(name, "global", 6);
1516
1517                         if (dump_cmdline) {
1518                                 if (first_sect)
1519                                         log_info("fio ");
1520                                 if (!global)
1521                                         log_info("--name=%s ", name);
1522                                 first_sect = 0;
1523                         }
1524
1525                         td = get_new_job(global, &def_thread, 0, name);
1526                         if (!td) {
1527                                 ret = 1;
1528                                 break;
1529                         }
1530
1531                         /*
1532                          * Separate multiple job files by a stonewall
1533                          */
1534                         if (!global && stonewall) {
1535                                 td->o.stonewall = stonewall;
1536                                 stonewall = 0;
1537                         }
1538
1539                         num_opts = 0;
1540                         memset(opts, 0, alloc_opts * sizeof(char *));
1541                 }
1542                 else
1543                         skip_fgets = 1;
1544
1545                 while (1) {
1546                         if (!skip_fgets) {
1547                                 if (is_buf)
1548                                         p = strsep(&file, "\n");
1549                                 else
1550                                         p = fgets(string, 4096, f);
1551                                 if (!p)
1552                                         break;
1553                                 dprint(FD_PARSE, "%s", p);
1554                         }
1555                         else
1556                                 skip_fgets = 0;
1557
1558                         if (is_empty_or_comment(p))
1559                                 continue;
1560
1561                         strip_blank_front(&p);
1562
1563                         /*
1564                          * new section, break out and make sure we don't
1565                          * fgets() a new line at the top.
1566                          */
1567                         if (p[0] == '[') {
1568                                 if (nested) {
1569                                         log_err("No new sections in included files\n");
1570                                         return 1;
1571                                 }
1572
1573                                 skip_fgets = 1;
1574                                 break;
1575                         }
1576
1577                         strip_blank_end(p);
1578
1579                         if (!strncmp(p, "include", strlen("include"))) {
1580                                 char *filename = p + strlen("include") + 1;
1581
1582                                 if ((ret = __parse_jobs_ini(td, filename,
1583                                                 is_buf, stonewall_flag, type, 1,
1584                                                 name, &opts, &alloc_opts, &num_opts))) {
1585                                         log_err("Error %d while parsing include file %s\n",
1586                                                 ret, filename);
1587                                         break;
1588                                 }
1589                                 continue;
1590                         }
1591
1592                         if (num_opts == alloc_opts) {
1593                                 alloc_opts <<= 1;
1594                                 opts = realloc(opts,
1595                                                 alloc_opts * sizeof(char *));
1596                         }
1597
1598                         opts[num_opts] = strdup(p);
1599                         num_opts++;
1600                 }
1601
1602                 if (nested) {
1603                         *popts = opts;
1604                         *aopts = alloc_opts;
1605                         *nopts = num_opts;
1606                         goto out;
1607                 }
1608
1609                 ret = fio_options_parse(td, opts, num_opts, dump_cmdline);
1610                 if (!ret)
1611                         ret = add_job(td, name, 0, 0, type);
1612                 else {
1613                         log_err("fio: job %s dropped\n", name);
1614                         put_job(td);
1615                 }
1616
1617                 for (i = 0; i < num_opts; i++)
1618                         free(opts[i]);
1619                 num_opts = 0;
1620         } while (!ret);
1621
1622         if (dump_cmdline)
1623                 log_info("\n");
1624
1625         i = 0;
1626         while (i < nr_job_sections) {
1627                 free(job_sections[i]);
1628                 i++;
1629         }
1630
1631         free(opts);
1632 out:
1633         free(string);
1634         if (!nested)
1635                 free(name);
1636         if (!is_buf && f != stdin)
1637                 fclose(f);
1638         return ret;
1639 }
1640
1641 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
1642 {
1643         return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
1644                         0, NULL, NULL, NULL, NULL);
1645 }
1646
1647 static int fill_def_thread(void)
1648 {
1649         memset(&def_thread, 0, sizeof(def_thread));
1650
1651         fio_getaffinity(getpid(), &def_thread.o.cpumask);
1652         def_thread.o.error_dump = 1;
1653
1654         /*
1655          * fill default options
1656          */
1657         fio_fill_default_options(&def_thread);
1658         return 0;
1659 }
1660
1661 static void usage(const char *name)
1662 {
1663         printf("%s\n", fio_version_string);
1664         printf("%s [options] [job options] <job file(s)>\n", name);
1665         printf("  --debug=options\tEnable debug logging. May be one/more of:\n"
1666                 "\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
1667                 "\t\t\tdiskutil,job,mutex,profile,time,net,rate,compress\n");
1668         printf("  --parse-only\t\tParse options only, don't start any IO\n");
1669         printf("  --output\t\tWrite output to file\n");
1670         printf("  --runtime\t\tRuntime in seconds\n");
1671         printf("  --bandwidth-log\tGenerate per-job bandwidth logs\n");
1672         printf("  --minimal\t\tMinimal (terse) output\n");
1673         printf("  --output-format=x\tOutput format (terse,json,normal)\n");
1674         printf("  --terse-version=x\tSet terse version output format to 'x'\n");
1675         printf("  --version\t\tPrint version info and exit\n");
1676         printf("  --help\t\tPrint this page\n");
1677         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
1678         printf("  --crctest\t\tTest speed of checksum functions\n");
1679         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
1680                 " them\n");
1681         printf("  --enghelp=engine\tPrint ioengine help, or list"
1682                 " available ioengines\n");
1683         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
1684                 " cmd\n");
1685         printf("  --showcmd\t\tTurn a job file into command line options\n");
1686         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
1687         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
1688         printf("  --eta-newline=time\tForce a new line for every 'time'");
1689         printf(" period passed\n");
1690         printf("  --status-interval=t\tForce full status dump every");
1691         printf(" 't' period passed\n");
1692         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
1693                 " writes\n");
1694         printf("  --section=name\tOnly run specified section in job file\n");
1695         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
1696                 " (def 1024)\n");
1697         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
1698         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1699         printf("  --server=args\t\tStart a backend fio server\n");
1700         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
1701         printf("  --client=hostname\tTalk to remote backend fio server at hostname\n");
1702         printf("  --remote-config=file\tTell fio server to load this local job file\n");
1703         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
1704                 "\t\t\t(option=system,percpu) or run unit work\n"
1705                 "\t\t\tcalibration only (option=calibrate)\n");
1706 #ifdef CONFIG_ZLIB
1707         printf("  --inflate-log=log\tInflate and output compressed log\n");
1708 #endif
1709         printf("  --trigger-file=file\tExecute trigger cmd when file exists\n");
1710         printf("  --trigger-timeout=t\tExecute trigger af this time\n");
1711         printf("  --trigger=cmd\t\tSet this command as local trigger\n");
1712         printf("  --trigger-remote=cmd\tSet this command as remote trigger\n");
1713         printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1714         printf("\n                   Jens Axboe <jaxboe@fusionio.com>");
1715         printf("\n                   Jens Axboe <axboe@fb.com>\n");
1716 }
1717
1718 #ifdef FIO_INC_DEBUG
1719 struct debug_level debug_levels[] = {
1720         { .name = "process",
1721           .help = "Process creation/exit logging",
1722           .shift = FD_PROCESS,
1723         },
1724         { .name = "file",
1725           .help = "File related action logging",
1726           .shift = FD_FILE,
1727         },
1728         { .name = "io",
1729           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
1730           .shift = FD_IO,
1731         },
1732         { .name = "mem",
1733           .help = "Memory allocation/freeing logging",
1734           .shift = FD_MEM,
1735         },
1736         { .name = "blktrace",
1737           .help = "blktrace action logging",
1738           .shift = FD_BLKTRACE,
1739         },
1740         { .name = "verify",
1741           .help = "IO verification action logging",
1742           .shift = FD_VERIFY,
1743         },
1744         { .name = "random",
1745           .help = "Random generation logging",
1746           .shift = FD_RANDOM,
1747         },
1748         { .name = "parse",
1749           .help = "Parser logging",
1750           .shift = FD_PARSE,
1751         },
1752         { .name = "diskutil",
1753           .help = "Disk utility logging actions",
1754           .shift = FD_DISKUTIL,
1755         },
1756         { .name = "job",
1757           .help = "Logging related to creating/destroying jobs",
1758           .shift = FD_JOB,
1759         },
1760         { .name = "mutex",
1761           .help = "Mutex logging",
1762           .shift = FD_MUTEX
1763         },
1764         { .name = "profile",
1765           .help = "Logging related to profiles",
1766           .shift = FD_PROFILE,
1767         },
1768         { .name = "time",
1769           .help = "Logging related to time keeping functions",
1770           .shift = FD_TIME,
1771         },
1772         { .name = "net",
1773           .help = "Network logging",
1774           .shift = FD_NET,
1775         },
1776         { .name = "rate",
1777           .help = "Rate logging",
1778           .shift = FD_RATE,
1779         },
1780         { .name = "compress",
1781           .help = "Log compression logging",
1782           .shift = FD_COMPRESS,
1783         },
1784         { .name = NULL, },
1785 };
1786
1787 static int set_debug(const char *string)
1788 {
1789         struct debug_level *dl;
1790         char *p = (char *) string;
1791         char *opt;
1792         int i;
1793
1794         if (!strcmp(string, "?") || !strcmp(string, "help")) {
1795                 log_info("fio: dumping debug options:");
1796                 for (i = 0; debug_levels[i].name; i++) {
1797                         dl = &debug_levels[i];
1798                         log_info("%s,", dl->name);
1799                 }
1800                 log_info("all\n");
1801                 return 1;
1802         }
1803
1804         while ((opt = strsep(&p, ",")) != NULL) {
1805                 int found = 0;
1806
1807                 if (!strncmp(opt, "all", 3)) {
1808                         log_info("fio: set all debug options\n");
1809                         fio_debug = ~0UL;
1810                         continue;
1811                 }
1812
1813                 for (i = 0; debug_levels[i].name; i++) {
1814                         dl = &debug_levels[i];
1815                         found = !strncmp(opt, dl->name, strlen(dl->name));
1816                         if (!found)
1817                                 continue;
1818
1819                         if (dl->shift == FD_JOB) {
1820                                 opt = strchr(opt, ':');
1821                                 if (!opt) {
1822                                         log_err("fio: missing job number\n");
1823                                         break;
1824                                 }
1825                                 opt++;
1826                                 fio_debug_jobno = atoi(opt);
1827                                 log_info("fio: set debug jobno %d\n",
1828                                                         fio_debug_jobno);
1829                         } else {
1830                                 log_info("fio: set debug option %s\n", opt);
1831                                 fio_debug |= (1UL << dl->shift);
1832                         }
1833                         break;
1834                 }
1835
1836                 if (!found)
1837                         log_err("fio: debug mask %s not found\n", opt);
1838         }
1839         return 0;
1840 }
1841 #else
1842 static int set_debug(const char *string)
1843 {
1844         log_err("fio: debug tracing not included in build\n");
1845         return 1;
1846 }
1847 #endif
1848
1849 static void fio_options_fill_optstring(void)
1850 {
1851         char *ostr = cmd_optstr;
1852         int i, c;
1853
1854         c = i = 0;
1855         while (l_opts[i].name) {
1856                 ostr[c++] = l_opts[i].val;
1857                 if (l_opts[i].has_arg == required_argument)
1858                         ostr[c++] = ':';
1859                 else if (l_opts[i].has_arg == optional_argument) {
1860                         ostr[c++] = ':';
1861                         ostr[c++] = ':';
1862                 }
1863                 i++;
1864         }
1865         ostr[c] = '\0';
1866 }
1867
1868 static int client_flag_set(char c)
1869 {
1870         int i;
1871
1872         i = 0;
1873         while (l_opts[i].name) {
1874                 int val = l_opts[i].val;
1875
1876                 if (c == (val & 0xff))
1877                         return (val & FIO_CLIENT_FLAG);
1878
1879                 i++;
1880         }
1881
1882         return 0;
1883 }
1884
1885 static void parse_cmd_client(void *client, char *opt)
1886 {
1887         fio_client_add_cmd_option(client, opt);
1888 }
1889
1890 static void show_closest_option(const char *name)
1891 {
1892         int best_option, best_distance;
1893         int i, distance;
1894
1895         while (*name == '-')
1896                 name++;
1897
1898         best_option = -1;
1899         best_distance = INT_MAX;
1900         i = 0;
1901         while (l_opts[i].name) {
1902                 distance = string_distance(name, l_opts[i].name);
1903                 if (distance < best_distance) {
1904                         best_distance = distance;
1905                         best_option = i;
1906                 }
1907                 i++;
1908         }
1909
1910         if (best_option != -1)
1911                 log_err("Did you mean %s?\n", l_opts[best_option].name);
1912 }
1913
1914 int parse_cmd_line(int argc, char *argv[], int client_type)
1915 {
1916         struct thread_data *td = NULL;
1917         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1918         char *ostr = cmd_optstr;
1919         void *pid_file = NULL;
1920         void *cur_client = NULL;
1921         int backend = 0;
1922
1923         /*
1924          * Reset optind handling, since we may call this multiple times
1925          * for the backend.
1926          */
1927         optind = 1;
1928
1929         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1930                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1931                         parse_cmd_client(cur_client, argv[optind - 1]);
1932                         c &= ~FIO_CLIENT_FLAG;
1933                 }
1934
1935                 switch (c) {
1936                 case 'a':
1937                         smalloc_pool_size = atoi(optarg);
1938                         break;
1939                 case 't':
1940                         if (check_str_time(optarg, &def_timeout, 1)) {
1941                                 log_err("fio: failed parsing time %s\n", optarg);
1942                                 do_exit++;
1943                                 exit_val = 1;
1944                         }
1945                         break;
1946                 case 'l':
1947                         log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
1948                         do_exit++;
1949                         exit_val = 1;
1950                         break;
1951                 case 'b':
1952                         write_bw_log = 1;
1953                         break;
1954                 case 'o':
1955                         if (f_out && f_out != stdout)
1956                                 fclose(f_out);
1957
1958                         f_out = fopen(optarg, "w+");
1959                         if (!f_out) {
1960                                 perror("fopen output");
1961                                 exit(1);
1962                         }
1963                         f_err = f_out;
1964                         break;
1965                 case 'm':
1966                         output_format = FIO_OUTPUT_TERSE;
1967                         break;
1968                 case 'F':
1969                         if (!optarg) {
1970                                 log_err("fio: missing --output-format argument\n");
1971                                 exit_val = 1;
1972                                 do_exit++;
1973                                 break;
1974                         }
1975                         if (!strcmp(optarg, "minimal") ||
1976                             !strcmp(optarg, "terse") ||
1977                             !strcmp(optarg, "csv"))
1978                                 output_format = FIO_OUTPUT_TERSE;
1979                         else if (!strcmp(optarg, "json"))
1980                                 output_format = FIO_OUTPUT_JSON;
1981                         else
1982                                 output_format = FIO_OUTPUT_NORMAL;
1983                         break;
1984                 case 'f':
1985                         append_terse_output = 1;
1986                         break;
1987                 case 'h':
1988                         did_arg = 1;
1989                         if (!cur_client) {
1990                                 usage(argv[0]);
1991                                 do_exit++;
1992                         }
1993                         break;
1994                 case 'c':
1995                         did_arg = 1;
1996                         if (!cur_client) {
1997                                 fio_show_option_help(optarg);
1998                                 do_exit++;
1999                         }
2000                         break;
2001                 case 'i':
2002                         did_arg = 1;
2003                         if (!cur_client) {
2004                                 fio_show_ioengine_help(optarg);
2005                                 do_exit++;
2006                         }
2007                         break;
2008                 case 's':
2009                         did_arg = 1;
2010                         dump_cmdline = 1;
2011                         break;
2012                 case 'r':
2013                         read_only = 1;
2014                         break;
2015                 case 'v':
2016                         did_arg = 1;
2017                         if (!cur_client) {
2018                                 log_info("%s\n", fio_version_string);
2019                                 do_exit++;
2020                         }
2021                         break;
2022                 case 'V':
2023                         terse_version = atoi(optarg);
2024                         if (!(terse_version == 2 || terse_version == 3 ||
2025                              terse_version == 4)) {
2026                                 log_err("fio: bad terse version format\n");
2027                                 exit_val = 1;
2028                                 do_exit++;
2029                         }
2030                         break;
2031                 case 'e':
2032                         if (!strcmp("always", optarg))
2033                                 eta_print = FIO_ETA_ALWAYS;
2034                         else if (!strcmp("never", optarg))
2035                                 eta_print = FIO_ETA_NEVER;
2036                         break;
2037                 case 'E': {
2038                         long long t = 0;
2039
2040                         if (check_str_time(optarg, &t, 1)) {
2041                                 log_err("fio: failed parsing eta time %s\n", optarg);
2042                                 exit_val = 1;
2043                                 do_exit++;
2044                         }
2045                         eta_new_line = t / 1000;
2046                         break;
2047                         }
2048                 case 'd':
2049                         if (set_debug(optarg))
2050                                 do_exit++;
2051                         break;
2052                 case 'P':
2053                         did_arg = 1;
2054                         parse_only = 1;
2055                         break;
2056                 case 'x': {
2057                         size_t new_size;
2058
2059                         if (!strcmp(optarg, "global")) {
2060                                 log_err("fio: can't use global as only "
2061                                         "section\n");
2062                                 do_exit++;
2063                                 exit_val = 1;
2064                                 break;
2065                         }
2066                         new_size = (nr_job_sections + 1) * sizeof(char *);
2067                         job_sections = realloc(job_sections, new_size);
2068                         job_sections[nr_job_sections] = strdup(optarg);
2069                         nr_job_sections++;
2070                         break;
2071                         }
2072 #ifdef CONFIG_ZLIB
2073                 case 'X':
2074                         exit_val = iolog_file_inflate(optarg);
2075                         did_arg++;
2076                         do_exit++;
2077                         break;
2078 #endif
2079                 case 'p':
2080                         did_arg = 1;
2081                         if (exec_profile)
2082                                 free(exec_profile);
2083                         exec_profile = strdup(optarg);
2084                         break;
2085                 case FIO_GETOPT_JOB: {
2086                         const char *opt = l_opts[lidx].name;
2087                         char *val = optarg;
2088
2089                         if (!strncmp(opt, "name", 4) && td) {
2090                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2091                                 if (ret)
2092                                         goto out_free;
2093                                 td = NULL;
2094                                 did_arg = 1;
2095                         }
2096                         if (!td) {
2097                                 int is_section = !strncmp(opt, "name", 4);
2098                                 int global = 0;
2099
2100                                 if (!is_section || !strncmp(val, "global", 6))
2101                                         global = 1;
2102
2103                                 if (is_section && skip_this_section(val))
2104                                         continue;
2105
2106                                 td = get_new_job(global, &def_thread, 1, NULL);
2107                                 if (!td || ioengine_load(td)) {
2108                                         if (td) {
2109                                                 put_job(td);
2110                                                 td = NULL;
2111                                         }
2112                                         do_exit++;
2113                                         break;
2114                                 }
2115                                 fio_options_set_ioengine_opts(l_opts, td);
2116                         }
2117
2118                         if ((!val || !strlen(val)) &&
2119                             l_opts[lidx].has_arg == required_argument) {
2120                                 log_err("fio: option %s requires an argument\n", opt);
2121                                 ret = 1;
2122                         } else
2123                                 ret = fio_cmd_option_parse(td, opt, val);
2124
2125                         if (ret) {
2126                                 if (td) {
2127                                         put_job(td);
2128                                         td = NULL;
2129                                 }
2130                                 do_exit++;
2131                         }
2132
2133                         if (!ret && !strcmp(opt, "ioengine")) {
2134                                 free_ioengine(td);
2135                                 if (ioengine_load(td)) {
2136                                         put_job(td);
2137                                         td = NULL;
2138                                         do_exit++;
2139                                         break;
2140                                 }
2141                                 fio_options_set_ioengine_opts(l_opts, td);
2142                         }
2143                         break;
2144                 }
2145                 case FIO_GETOPT_IOENGINE: {
2146                         const char *opt = l_opts[lidx].name;
2147                         char *val = optarg;
2148
2149                         if (!td)
2150                                 break;
2151
2152                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
2153                         break;
2154                 }
2155                 case 'w':
2156                         warnings_fatal = 1;
2157                         break;
2158                 case 'j':
2159                         max_jobs = atoi(optarg);
2160                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2161                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
2162                                 do_exit++;
2163                                 exit_val = 1;
2164                         }
2165                         break;
2166                 case 'S':
2167                         did_arg = 1;
2168 #ifndef CONFIG_NO_SHM
2169                         if (nr_clients) {
2170                                 log_err("fio: can't be both client and server\n");
2171                                 do_exit++;
2172                                 exit_val = 1;
2173                                 break;
2174                         }
2175                         if (optarg)
2176                                 fio_server_set_arg(optarg);
2177                         is_backend = 1;
2178                         backend = 1;
2179 #else
2180                         log_err("fio: client/server requires SHM support\n");
2181                         do_exit++;
2182                         exit_val = 1;
2183 #endif
2184                         break;
2185                 case 'D':
2186                         if (pid_file)
2187                                 free(pid_file);
2188                         pid_file = strdup(optarg);
2189                         break;
2190                 case 'I':
2191                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
2192                                 /* exit on error and calibration only */
2193                                 did_arg = 1;
2194                                 do_exit++;
2195                                 if (ret == -1)
2196                                         exit_val = 1;
2197                         }
2198                         break;
2199                 case 'C':
2200                         did_arg = 1;
2201                         if (is_backend) {
2202                                 log_err("fio: can't be both client and server\n");
2203                                 do_exit++;
2204                                 exit_val = 1;
2205                                 break;
2206                         }
2207                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2208                                 log_err("fio: failed adding client %s\n", optarg);
2209                                 do_exit++;
2210                                 exit_val = 1;
2211                                 break;
2212                         }
2213                         /*
2214                          * If the next argument exists and isn't an option,
2215                          * assume it's a job file for this client only.
2216                          */
2217                         while (optind < argc) {
2218                                 if (!strncmp(argv[optind], "--", 2) ||
2219                                     !strncmp(argv[optind], "-", 1))
2220                                         break;
2221
2222                                 if (fio_client_add_ini_file(cur_client, argv[optind], 0))
2223                                         break;
2224                                 optind++;
2225                         }
2226                         break;
2227                 case 'R':
2228                         did_arg = 1;
2229                         if (fio_client_add_ini_file(cur_client, optarg, 1)) {
2230                                 do_exit++;
2231                                 exit_val = 1;
2232                         }
2233                         break;
2234                 case 'T':
2235                         did_arg = 1;
2236                         do_exit++;
2237                         exit_val = fio_monotonic_clocktest();
2238                         break;
2239                 case 'G':
2240                         did_arg = 1;
2241                         do_exit++;
2242                         exit_val = fio_crctest(optarg);
2243                         break;
2244                 case 'L': {
2245                         long long val;
2246
2247                         if (check_str_time(optarg, &val, 1)) {
2248                                 log_err("fio: failed parsing time %s\n", optarg);
2249                                 do_exit++;
2250                                 exit_val = 1;
2251                                 break;
2252                         }
2253                         status_interval = val / 1000;
2254                         break;
2255                         }
2256                 case 'W':
2257                         trigger_file = strdup(optarg);
2258                         break;
2259                 case 'H':
2260                         trigger_cmd = strdup(optarg);
2261                         break;
2262                 case 'J':
2263                         trigger_remote_cmd = strdup(optarg);
2264                         break;
2265                 case 'B':
2266                         if (check_str_time(optarg, &trigger_timeout, 1)) {
2267                                 log_err("fio: failed parsing time %s\n", optarg);
2268                                 do_exit++;
2269                                 exit_val = 1;
2270                         }
2271                         trigger_timeout /= 1000000;
2272                         break;
2273                 case '?':
2274                         log_err("%s: unrecognized option '%s'\n", argv[0],
2275                                                         argv[optind - 1]);
2276                         show_closest_option(argv[optind - 1]);
2277                 default:
2278                         do_exit++;
2279                         exit_val = 1;
2280                         break;
2281                 }
2282                 if (do_exit)
2283                         break;
2284         }
2285
2286         if (do_exit && !(is_backend || nr_clients))
2287                 exit(exit_val);
2288
2289         if (nr_clients && fio_clients_connect())
2290                 exit(1);
2291
2292         if (is_backend && backend)
2293                 return fio_start_server(pid_file);
2294         else if (pid_file)
2295                 free(pid_file);
2296
2297         if (td) {
2298                 if (!ret) {
2299                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2300                         if (ret)
2301                                 did_arg = 1;
2302                 }
2303         }
2304
2305         while (!ret && optind < argc) {
2306                 ini_idx++;
2307                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2308                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2309                 optind++;
2310         }
2311
2312 out_free:
2313         if (pid_file)
2314                 free(pid_file);
2315
2316         return ini_idx;
2317 }
2318
2319 int fio_init_options(void)
2320 {
2321         f_out = stdout;
2322         f_err = stderr;
2323
2324         fio_options_fill_optstring();
2325         fio_options_dup_and_init(l_opts);
2326
2327         atexit(free_shm);
2328
2329         if (fill_def_thread())
2330                 return 1;
2331
2332         return 0;
2333 }
2334
2335 extern int fio_check_options(struct thread_options *);
2336
2337 int parse_options(int argc, char *argv[])
2338 {
2339         const int type = FIO_CLIENT_TYPE_CLI;
2340         int job_files, i;
2341
2342         if (fio_init_options())
2343                 return 1;
2344         if (fio_test_cconv(&def_thread.o))
2345                 log_err("fio: failed internal cconv test\n");
2346
2347         job_files = parse_cmd_line(argc, argv, type);
2348
2349         if (job_files > 0) {
2350                 for (i = 0; i < job_files; i++) {
2351                         if (i && fill_def_thread())
2352                                 return 1;
2353                         if (nr_clients) {
2354                                 if (fio_clients_send_ini(ini_file[i]))
2355                                         return 1;
2356                                 free(ini_file[i]);
2357                         } else if (!is_backend) {
2358                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2359                                         return 1;
2360                                 free(ini_file[i]);
2361                         }
2362                 }
2363         } else if (nr_clients) {
2364                 if (fill_def_thread())
2365                         return 1;
2366                 if (fio_clients_send_ini(NULL))
2367                         return 1;
2368         }
2369
2370         free(ini_file);
2371         fio_options_free(&def_thread);
2372         filesetup_mem_free();
2373
2374         if (!thread_number) {
2375                 if (parse_dryrun())
2376                         return 0;
2377                 if (exec_profile)
2378                         return 0;
2379                 if (is_backend || nr_clients)
2380                         return 0;
2381                 if (did_arg)
2382                         return 0;
2383
2384                 log_err("No jobs(s) defined\n\n");
2385
2386                 if (!did_arg) {
2387                         usage(argv[0]);
2388                         return 1;
2389                 }
2390
2391                 return 0;
2392         }
2393
2394         if (output_format == FIO_OUTPUT_NORMAL)
2395                 log_info("%s\n", fio_version_string);
2396
2397         return 0;
2398 }
2399
2400 void options_default_fill(struct thread_options *o)
2401 {
2402         memcpy(o, &def_thread.o, sizeof(*o));
2403 }