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