init.c

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