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 #ifndef FIO_NO_HAVE_SHM_H
  13 #include <sys/shm.h>
  14 #endif
  15 #include <sys/types.h>
  16 #include <sys/stat.h>
  17
  18 #include "fio.h"
  19 #include "parse.h"
  20 #include "smalloc.h"
  21 #include "filehash.h"
  22 #include "verify.h"
  23 #include "profile.h"
  24 #include "server.h"
  25
  26 #include "lib/getopt.h"
  27
  28 const char fio_version_string[] = FIO_VERSION;
  29
  30 #define FIO_RANDSEED            (0xb1899bedUL)
  31
  32 static char **ini_file;
  33 static int max_jobs = FIO_MAX_JOBS;
  34 static int dump_cmdline;
  35 static int def_timeout;
  36
  37 static struct thread_data def_thread;
  38 struct thread_data *threads = NULL;
  39
  40 int exitall_on_terminate = 0;
  41 int output_format = FIO_OUTPUT_NORMAL;
  42 int eta_print;
  43 unsigned long long mlock_size = 0;
  44 FILE *f_out = NULL;
  45 FILE *f_err = NULL;
  46 char **job_sections = NULL;
  47 int nr_job_sections = 0;
  48 char *exec_profile = NULL;
  49 int warnings_fatal = 0;
  50 int terse_version = 3;
  51 int is_backend = 0;
  52 int nr_clients = 0;
  53 int log_syslog = 0;
  54
  55 int write_bw_log = 0;
  56 int read_only = 0;
  57
  58 static int write_lat_log;
  59
  60 static int prev_group_jobs;
  61
  62 unsigned long fio_debug = 0;
  63 unsigned int fio_debug_jobno = -1;
  64 unsigned int *fio_debug_jobp = NULL;
  65
  66 static char cmd_optstr[256];
  67 static int did_arg;
  68
  69 const fio_fp64_t def_percentile_list[FIO_IO_U_LIST_MAX_LEN] = {
  70         { .u.f  =  1.00 },
  71         { .u.f  =  5.00 },
  72         { .u.f  = 10.00 },
  73         { .u.f  = 20.00 },
  74         { .u.f  = 30.00 },
  75         { .u.f  = 40.00 },
  76         { .u.f  = 50.00 },
  77         { .u.f  = 60.00 },
  78         { .u.f  = 70.00 },
  79         { .u.f  = 80.00 },
  80         { .u.f  = 90.00 },
  81         { .u.f  = 95.00 },
  82         { .u.f  = 99.00 },
  83         { .u.f  = 99.50 },
  84         { .u.f  = 99.90 },
  85         { .u.f  = 99.95 },
  86         { .u.f  = 99.99 },
  87 };
  88
  89 #define FIO_CLIENT_FLAG         (1 << 16)
  90
  91 /*
  92  * Command line options. These will contain the above, plus a few
  93  * extra that only pertain to fio itself and not jobs.
  94  */
  95 static struct option l_opts[FIO_NR_OPTIONS] = {
  96         {
  97                 .name           = (char *) "output",
  98                 .has_arg        = required_argument,
  99                 .val            = 'o' | FIO_CLIENT_FLAG,
 100         },
 101         {
 102                 .name           = (char *) "timeout",
 103                 .has_arg        = required_argument,
 104                 .val            = 't' | FIO_CLIENT_FLAG,
 105         },
 106         {
 107                 .name           = (char *) "latency-log",
 108                 .has_arg        = required_argument,
 109                 .val            = 'l' | FIO_CLIENT_FLAG,
 110         },
 111         {
 112                 .name           = (char *) "bandwidth-log",
 113                 .has_arg        = required_argument,
 114                 .val            = 'b' | FIO_CLIENT_FLAG,
 115         },
 116         {
 117                 .name           = (char *) "minimal",
 118                 .has_arg        = optional_argument,
 119                 .val            = 'm' | FIO_CLIENT_FLAG,
 120         },
 121         {
 122                 .name           = (char *) "output-format",
 123                 .has_arg        = optional_argument,
 124                 .val            = 'F' | FIO_CLIENT_FLAG,
 125         },
 126         {
 127                 .name           = (char *) "version",
 128                 .has_arg        = no_argument,
 129                 .val            = 'v' | FIO_CLIENT_FLAG,
 130         },
 131         {
 132                 .name           = (char *) "help",
 133                 .has_arg        = no_argument,
 134                 .val            = 'h' | FIO_CLIENT_FLAG,
 135         },
 136         {
 137                 .name           = (char *) "cmdhelp",
 138                 .has_arg        = optional_argument,
 139                 .val            = 'c' | FIO_CLIENT_FLAG,
 140         },
 141         {
 142                 .name              = (char *) "enghelp",
 143                 .has_arg        = optional_argument,
 144                 .val                = 'i' | FIO_CLIENT_FLAG,
 145         },
 146         {
 147                 .name           = (char *) "showcmd",
 148                 .has_arg        = no_argument,
 149                 .val            = 's' | FIO_CLIENT_FLAG,
 150         },
 151         {
 152                 .name           = (char *) "readonly",
 153                 .has_arg        = no_argument,
 154                 .val            = 'r' | FIO_CLIENT_FLAG,
 155         },
 156         {
 157                 .name           = (char *) "eta",
 158                 .has_arg        = required_argument,
 159                 .val            = 'e' | FIO_CLIENT_FLAG,
 160         },
 161         {
 162                 .name           = (char *) "debug",
 163                 .has_arg        = required_argument,
 164                 .val            = 'd' | FIO_CLIENT_FLAG,
 165         },
 166         {
 167                 .name           = (char *) "section",
 168                 .has_arg        = required_argument,
 169                 .val            = 'x' | FIO_CLIENT_FLAG,
 170         },
 171         {
 172                 .name           = (char *) "alloc-size",
 173                 .has_arg        = required_argument,
 174                 .val            = 'a' | FIO_CLIENT_FLAG,
 175         },
 176         {
 177                 .name           = (char *) "profile",
 178                 .has_arg        = required_argument,
 179                 .val            = 'p' | FIO_CLIENT_FLAG,
 180         },
 181         {
 182                 .name           = (char *) "warnings-fatal",
 183                 .has_arg        = no_argument,
 184                 .val            = 'w' | FIO_CLIENT_FLAG,
 185         },
 186         {
 187                 .name           = (char *) "max-jobs",
 188                 .has_arg        = required_argument,
 189                 .val            = 'j' | FIO_CLIENT_FLAG,
 190         },
 191         {
 192                 .name           = (char *) "terse-version",
 193                 .has_arg        = required_argument,
 194                 .val            = 'V' | FIO_CLIENT_FLAG,
 195         },
 196         {
 197                 .name           = (char *) "server",
 198                 .has_arg        = optional_argument,
 199                 .val            = 'S',
 200         },
 201         {       .name           = (char *) "daemonize",
 202                 .has_arg        = required_argument,
 203                 .val            = 'D',
 204         },
 205         {
 206                 .name           = (char *) "client",
 207                 .has_arg        = required_argument,
 208                 .val            = 'C',
 209         },
 210         {
 211                 .name           = NULL,
 212         },
 213 };
 214
 215 static void free_shm(void)
 216 {
 217         struct shmid_ds sbuf;
 218
 219         if (threads) {
 220                 void *tp = threads;
 221
 222                 threads = NULL;
 223                 file_hash_exit();
 224                 flow_exit();
 225                 fio_debug_jobp = NULL;
 226                 shmdt(tp);
 227                 shmctl(shm_id, IPC_RMID, &sbuf);
 228         }
 229
 230         scleanup();
 231 }
 232
 233 /*
 234  * The thread area is shared between the main process and the job
 235  * threads/processes. So setup a shared memory segment that will hold
 236  * all the job info. We use the end of the region for keeping track of
 237  * open files across jobs, for file sharing.
 238  */
 239 static int setup_thread_area(void)
 240 {
 241         void *hash;
 242
 243         if (threads)
 244                 return 0;
 245
 246         /*
 247          * 1024 is too much on some machines, scale max_jobs if
 248          * we get a failure that looks like too large a shm segment
 249          */
 250         do {
 251                 size_t size = max_jobs * sizeof(struct thread_data);
 252
 253                 size += file_hash_size;
 254                 size += sizeof(unsigned int);
 255
 256                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 257                 if (shm_id != -1)
 258                         break;
 259                 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
 260                         perror("shmget");
 261                         break;
 262                 }
 263
 264                 max_jobs >>= 1;
 265         } while (max_jobs);
 266
 267         if (shm_id == -1)
 268                 return 1;
 269
 270         threads = shmat(shm_id, NULL, 0);
 271         if (threads == (void *) -1) {
 272                 perror("shmat");
 273                 return 1;
 274         }
 275
 276         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 277         hash = (void *) threads + max_jobs * sizeof(struct thread_data);
 278         fio_debug_jobp = (void *) hash + file_hash_size;
 279         *fio_debug_jobp = -1;
 280         file_hash_init(hash);
 281
 282         flow_init();
 283
 284         return 0;
 285 }
 286
 287 /*
 288  * Return a free job structure.
 289  */
 290 static struct thread_data *get_new_job(int global, struct thread_data *parent,
 291                                        int preserve_eo)
 292 {
 293         struct thread_data *td;
 294
 295         if (global)
 296                 return &def_thread;
 297         if (setup_thread_area()) {
 298                 log_err("error: failed to setup shm segment\n");
 299                 return NULL;
 300         }
 301         if (thread_number >= max_jobs) {
 302                 log_err("error: maximum number of jobs (%d) reached.\n",
 303                                 max_jobs);
 304                 return NULL;
 305         }
 306
 307         td = &threads[thread_number++];
 308         *td = *parent;
 309
 310         td->io_ops = NULL;
 311         if (!preserve_eo)
 312                 td->eo = NULL;
 313
 314         td->o.uid = td->o.gid = -1U;
 315
 316         dup_files(td, parent);
 317         fio_options_mem_dupe(td);
 318
 319         profile_add_hooks(td);
 320
 321         td->thread_number = thread_number;
 322
 323         if (!parent || !parent->o.group_reporting)
 324                 stat_number++;
 325
 326         return td;
 327 }
 328
 329 static void put_job(struct thread_data *td)
 330 {
 331         if (td == &def_thread)
 332                 return;
 333
 334         profile_td_exit(td);
 335         flow_exit_job(td);
 336
 337         if (td->error)
 338                 log_info("fio: %s\n", td->verror);
 339
 340         fio_options_free(td);
 341         if (td->io_ops)
 342                 free_ioengine(td);
 343
 344         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 345         thread_number--;
 346 }
 347
 348 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 349 {
 350         unsigned int bs = td->o.min_bs[ddir];
 351
 352         assert(ddir_rw(ddir));
 353
 354         if (td->o.rate[ddir])
 355                 td->rate_bps[ddir] = td->o.rate[ddir];
 356         else
 357                 td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs;
 358
 359         if (!td->rate_bps[ddir]) {
 360                 log_err("rate lower than supported\n");
 361                 return -1;
 362         }
 363
 364         td->rate_pending_usleep[ddir] = 0;
 365         return 0;
 366 }
 367
 368 static int setup_rate(struct thread_data *td)
 369 {
 370         int ret = 0;
 371
 372         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
 373                 ret = __setup_rate(td, DDIR_READ);
 374         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
 375                 ret |= __setup_rate(td, DDIR_WRITE);
 376         if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
 377                 ret |= __setup_rate(td, DDIR_TRIM);
 378
 379         return ret;
 380 }
 381
 382 static int fixed_block_size(struct thread_options *o)
 383 {
 384         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 385                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 386                 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
 387                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
 388                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
 389 }
 390
 391 /*
 392  * Lazy way of fixing up options that depend on each other. We could also
 393  * define option callback handlers, but this is easier.
 394  */
 395 static int fixup_options(struct thread_data *td)
 396 {
 397         struct thread_options *o = &td->o;
 398         int ret = 0;
 399
 400 #ifndef FIO_HAVE_PSHARED_MUTEX
 401         if (!o->use_thread) {
 402                 log_info("fio: this platform does not support process shared"
 403                          " mutexes, forcing use of threads. Use the 'thread'"
 404                          " option to get rid of this warning.\n");
 405                 o->use_thread = 1;
 406                 ret = warnings_fatal;
 407         }
 408 #endif
 409
 410         if (o->write_iolog_file && o->read_iolog_file) {
 411                 log_err("fio: read iolog overrides write_iolog\n");
 412                 free(o->write_iolog_file);
 413                 o->write_iolog_file = NULL;
 414                 ret = warnings_fatal;
 415         }
 416
 417         /*
 418          * only really works with 1 file
 419          */
 420         if (o->zone_size && o->open_files == 1)
 421                 o->zone_size = 0;
 422
 423         /*
 424          * If zone_range isn't specified, backward compatibility dictates it
 425          * should be made equal to zone_size.
 426          */
 427         if (o->zone_size && !o->zone_range)
 428                 o->zone_range = o->zone_size;
 429
 430         /*
 431          * Reads can do overwrites, we always need to pre-create the file
 432          */
 433         if (td_read(td) || td_rw(td))
 434                 o->overwrite = 1;
 435
 436         if (!o->min_bs[DDIR_READ])
 437                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
 438         if (!o->max_bs[DDIR_READ])
 439                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 440         if (!o->min_bs[DDIR_WRITE])
 441                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 442         if (!o->max_bs[DDIR_WRITE])
 443                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 444         if (!o->min_bs[DDIR_TRIM])
 445                 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 446         if (!o->max_bs[DDIR_TRIM])
 447                 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 448
 449
 450         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 451         o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
 452
 453         /*
 454          * For random IO, allow blockalign offset other than min_bs.
 455          */
 456         if (!o->ba[DDIR_READ] || !td_random(td))
 457                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
 458         if (!o->ba[DDIR_WRITE] || !td_random(td))
 459                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
 460         if (!o->ba[DDIR_TRIM] || !td_random(td))
 461                 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
 462
 463         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 464             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
 465             o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
 466             !o->norandommap) {
 467                 log_err("fio: Any use of blockalign= turns off randommap\n");
 468                 o->norandommap = 1;
 469                 ret = warnings_fatal;
 470         }
 471
 472         if (!o->file_size_high)
 473                 o->file_size_high = o->file_size_low;
 474
 475         if (o->norandommap && o->verify != VERIFY_NONE
 476             && !fixed_block_size(o))  {
 477                 log_err("fio: norandommap given for variable block sizes, "
 478                         "verify disabled\n");
 479                 o->verify = VERIFY_NONE;
 480                 ret = warnings_fatal;
 481         }
 482         if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
 483                 log_err("fio: bs_unaligned may not work with raw io\n");
 484
 485         /*
 486          * thinktime_spin must be less than thinktime
 487          */
 488         if (o->thinktime_spin > o->thinktime)
 489                 o->thinktime_spin = o->thinktime;
 490
 491         /*
 492          * The low water mark cannot be bigger than the iodepth
 493          */
 494         if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
 495                 /*
 496                  * syslet work around - if the workload is sequential,
 497                  * we want to let the queue drain all the way down to
 498                  * avoid seeking between async threads
 499                  */
 500                 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
 501                         o->iodepth_low = 1;
 502                 else
 503                         o->iodepth_low = o->iodepth;
 504         }
 505
 506         /*
 507          * If batch number isn't set, default to the same as iodepth
 508          */
 509         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 510                 o->iodepth_batch = o->iodepth;
 511
 512         if (o->nr_files > td->files_index)
 513                 o->nr_files = td->files_index;
 514
 515         if (o->open_files > o->nr_files || !o->open_files)
 516                 o->open_files = o->nr_files;
 517
 518         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
 519             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
 520             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 521             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 522                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 523                 ret = 1;
 524         }
 525         if ((o->rate[DDIR_READ] < o->ratemin[DDIR_READ]) ||
 526             (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE]) ||
 527             (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM]) ||
 528             (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ]) ||
 529             (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE]) ||
 530             (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM])) {
 531                 log_err("fio: minimum rate exceeds rate\n");
 532                 ret = 1;
 533         }
 534
 535         if (!o->timeout && o->time_based) {
 536                 log_err("fio: time_based requires a runtime/timeout setting\n");
 537                 o->time_based = 0;
 538                 ret = warnings_fatal;
 539         }
 540
 541         if (o->fill_device && !o->size)
 542                 o->size = -1ULL;
 543
 544         if (o->verify != VERIFY_NONE) {
 545                 if (td_write(td) && o->do_verify && o->numjobs > 1) {
 546                         log_info("Multiple writers may overwrite blocks that "
 547                                 "belong to other jobs. This can cause "
 548                                 "verification failures.\n");
 549                         ret = warnings_fatal;
 550                 }
 551
 552                 o->refill_buffers = 1;
 553                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 554                     !o->verify_interval)
 555                         o->verify_interval = o->min_bs[DDIR_WRITE];
 556         }
 557
 558         if (o->pre_read) {
 559                 o->invalidate_cache = 0;
 560                 if (td->io_ops->flags & FIO_PIPEIO) {
 561                         log_info("fio: cannot pre-read files with an IO engine"
 562                                  " that isn't seekable. Pre-read disabled.\n");
 563                         ret = warnings_fatal;
 564                 }
 565         }
 566
 567 #ifndef FIO_HAVE_FDATASYNC
 568         if (o->fdatasync_blocks) {
 569                 log_info("fio: this platform does not support fdatasync()"
 570                          " falling back to using fsync().  Use the 'fsync'"
 571                          " option instead of 'fdatasync' to get rid of"
 572                          " this warning\n");
 573                 o->fsync_blocks = o->fdatasync_blocks;
 574                 o->fdatasync_blocks = 0;
 575                 ret = warnings_fatal;
 576         }
 577 #endif
 578
 579 #ifdef WIN32
 580         /*
 581          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 582          * so fail if we're passed those flags
 583          */
 584         if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
 585                 log_err("fio: Windows does not support direct or non-buffered io with"
 586                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 587                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 588                 ret = 1;
 589         }
 590 #endif
 591
 592         /*
 593          * For fully compressible data, just zero them at init time.
 594          * It's faster than repeatedly filling it.
 595          */
 596         if (td->o.compress_percentage == 100) {
 597                 td->o.zero_buffers = 1;
 598                 td->o.compress_percentage = 0;
 599         }
 600
 601         /*
 602          * Using a non-uniform random distribution excludes usage of
 603          * a random map
 604          */
 605         if (td->o.random_distribution != FIO_RAND_DIST_RANDOM)
 606                 td->o.norandommap = 1;
 607
 608         return ret;
 609 }
 610
 611 /*
 612  * This function leaks the buffer
 613  */
 614 static char *to_kmg(unsigned int val)
 615 {
 616         char *buf = malloc(32);
 617         char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
 618         char *p = post;
 619
 620         do {
 621                 if (val & 1023)
 622                         break;
 623
 624                 val >>= 10;
 625                 p++;
 626         } while (*p);
 627
 628         snprintf(buf, 31, "%u%c", val, *p);
 629         return buf;
 630 }
 631
 632 /* External engines are specified by "external:name.o") */
 633 static const char *get_engine_name(const char *str)
 634 {
 635         char *p = strstr(str, ":");
 636
 637         if (!p)
 638                 return str;
 639
 640         p++;
 641         strip_blank_front(&p);
 642         strip_blank_end(p);
 643         return p;
 644 }
 645
 646 static int exists_and_not_file(const char *filename)
 647 {
 648         struct stat sb;
 649
 650         if (lstat(filename, &sb) == -1)
 651                 return 0;
 652
 653         /* \\.\ is the device namespace in Windows, where every file
 654          * is a device node */
 655         if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
 656                 return 0;
 657
 658         return 1;
 659 }
 660
 661 static void td_fill_rand_seeds_os(struct thread_data *td)
 662 {
 663         os_random_seed(td->rand_seeds[0], &td->bsrange_state);
 664         os_random_seed(td->rand_seeds[1], &td->verify_state);
 665         os_random_seed(td->rand_seeds[2], &td->rwmix_state);
 666
 667         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 668                 os_random_seed(td->rand_seeds[3], &td->next_file_state);
 669
 670         os_random_seed(td->rand_seeds[5], &td->file_size_state);
 671         os_random_seed(td->rand_seeds[6], &td->trim_state);
 672
 673         if (!td_random(td))
 674                 return;
 675
 676         if (td->o.rand_repeatable)
 677                 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
 678
 679         os_random_seed(td->rand_seeds[4], &td->random_state);
 680 }
 681
 682 static void td_fill_rand_seeds_internal(struct thread_data *td)
 683 {
 684         init_rand_seed(&td->__bsrange_state, td->rand_seeds[0]);
 685         init_rand_seed(&td->__verify_state, td->rand_seeds[1]);
 686         init_rand_seed(&td->__rwmix_state, td->rand_seeds[2]);
 687
 688         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 689                 init_rand_seed(&td->__next_file_state, td->rand_seeds[3]);
 690
 691         init_rand_seed(&td->__file_size_state, td->rand_seeds[5]);
 692         init_rand_seed(&td->__trim_state, td->rand_seeds[6]);
 693
 694         if (!td_random(td))
 695                 return;
 696
 697         if (td->o.rand_repeatable)
 698                 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
 699
 700         init_rand_seed(&td->__random_state, td->rand_seeds[4]);
 701 }
 702
 703 void td_fill_rand_seeds(struct thread_data *td)
 704 {
 705         if (td->o.use_os_rand)
 706                 td_fill_rand_seeds_os(td);
 707         else
 708                 td_fill_rand_seeds_internal(td);
 709
 710         init_rand_seed(&td->buf_state, td->rand_seeds[7]);
 711 }
 712
 713
 714 /*
 715  * Initializes the ioengine configured for a job, if it has not been done so
 716  * already.
 717  */
 718 int ioengine_load(struct thread_data *td)
 719 {
 720         const char *engine;
 721
 722         /*
 723          * Engine has already been loaded.
 724          */
 725         if (td->io_ops)
 726                 return 0;
 727
 728         engine = get_engine_name(td->o.ioengine);
 729         td->io_ops = load_ioengine(td, engine);
 730         if (!td->io_ops) {
 731                 log_err("fio: failed to load engine %s\n", engine);
 732                 return 1;
 733         }
 734
 735         if (td->io_ops->option_struct_size && td->io_ops->options) {
 736                 /*
 737                  * In cases where td->eo is set, clone it for a child thread.
 738                  * This requires that the parent thread has the same ioengine,
 739                  * but that requirement must be enforced by the code which
 740                  * cloned the thread.
 741                  */
 742                 void *origeo = td->eo;
 743                 /*
 744                  * Otherwise use the default thread options.
 745                  */
 746                 if (!origeo && td != &def_thread && def_thread.eo &&
 747                     def_thread.io_ops->options == td->io_ops->options)
 748                         origeo = def_thread.eo;
 749
 750                 options_init(td->io_ops->options);
 751                 td->eo = malloc(td->io_ops->option_struct_size);
 752                 /*
 753                  * Use the default thread as an option template if this uses the
 754                  * same options structure and there are non-default options
 755                  * used.
 756                  */
 757                 if (origeo) {
 758                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
 759                         options_mem_dupe(td->eo, td->io_ops->options);
 760                 } else {
 761                         memset(td->eo, 0, td->io_ops->option_struct_size);
 762                         fill_default_options(td->eo, td->io_ops->options);
 763                 }
 764                 *(struct thread_data **)td->eo = td;
 765         }
 766
 767         return 0;
 768 }
 769
 770 /*
 771  * Adds a job to the list of things todo. Sanitizes the various options
 772  * to make sure we don't have conflicts, and initializes various
 773  * members of td.
 774  */
 775 static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
 776 {
 777         const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
 778                                    "randread", "randwrite", "randrw",
 779                                    "trim", NULL, NULL, NULL, "randtrim" };
 780         unsigned int i;
 781         char fname[PATH_MAX];
 782         int numjobs, file_alloced;
 783
 784         /*
 785          * the def_thread is just for options, it's not a real job
 786          */
 787         if (td == &def_thread)
 788                 return 0;
 789
 790         /*
 791          * if we are just dumping the output command line, don't add the job
 792          */
 793         if (dump_cmdline) {
 794                 put_job(td);
 795                 return 0;
 796         }
 797
 798         if (profile_td_init(td))
 799                 goto err;
 800
 801         if (ioengine_load(td))
 802                 goto err;
 803
 804         if (td->o.use_thread)
 805                 nr_thread++;
 806         else
 807                 nr_process++;
 808
 809         if (td->o.odirect)
 810                 td->io_ops->flags |= FIO_RAWIO;
 811
 812         file_alloced = 0;
 813         if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
 814                 file_alloced = 1;
 815
 816                 if (td->o.nr_files == 1 && exists_and_not_file(jobname))
 817                         add_file(td, jobname);
 818                 else {
 819                         for (i = 0; i < td->o.nr_files; i++) {
 820                                 sprintf(fname, "%s.%d.%d", jobname,
 821                                                         td->thread_number, i);
 822                                 add_file(td, fname);
 823                         }
 824                 }
 825         }
 826
 827         if (fixup_options(td))
 828                 goto err;
 829
 830         flow_init_job(td);
 831
 832         /*
 833          * IO engines only need this for option callbacks, and the address may
 834          * change in subprocesses.
 835          */
 836         if (td->eo)
 837                 *(struct thread_data **)td->eo = NULL;
 838
 839         if (td->io_ops->flags & FIO_DISKLESSIO) {
 840                 struct fio_file *f;
 841
 842                 for_each_file(td, f, i)
 843                         f->real_file_size = -1ULL;
 844         }
 845
 846         td->mutex = fio_mutex_init(FIO_MUTEX_LOCKED);
 847
 848         td->ts.clat_percentiles = td->o.clat_percentiles;
 849         if (td->o.overwrite_plist)
 850                 memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
 851         else
 852                 memcpy(td->ts.percentile_list, def_percentile_list, sizeof(def_percentile_list));
 853
 854         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
 855                 td->ts.clat_stat[i].min_val = ULONG_MAX;
 856                 td->ts.slat_stat[i].min_val = ULONG_MAX;
 857                 td->ts.lat_stat[i].min_val = ULONG_MAX;
 858                 td->ts.bw_stat[i].min_val = ULONG_MAX;
 859         }
 860         td->ddir_seq_nr = td->o.ddir_seq_nr;
 861
 862         if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) {
 863                 prev_group_jobs = 0;
 864                 groupid++;
 865         }
 866
 867         td->groupid = groupid;
 868         prev_group_jobs++;
 869
 870         if (init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds))) {
 871                 td_verror(td, errno, "init_random_state");
 872                 goto err;
 873         }
 874
 875         if (setup_rate(td))
 876                 goto err;
 877
 878         if (td->o.write_lat_log) {
 879                 setup_log(&td->lat_log, td->o.log_avg_msec);
 880                 setup_log(&td->slat_log, td->o.log_avg_msec);
 881                 setup_log(&td->clat_log, td->o.log_avg_msec);
 882         }
 883         if (td->o.write_bw_log)
 884                 setup_log(&td->bw_log, td->o.log_avg_msec);
 885         if (td->o.write_iops_log)
 886                 setup_log(&td->iops_log, td->o.log_avg_msec);
 887
 888         if (!td->o.name)
 889                 td->o.name = strdup(jobname);
 890
 891         if (output_format == FIO_OUTPUT_NORMAL) {
 892                 if (!job_add_num) {
 893                         if (!strcmp(td->io_ops->name, "cpuio")) {
 894                                 log_info("%s: ioengine=cpu, cpuload=%u,"
 895                                          " cpucycle=%u\n", td->o.name,
 896                                                         td->o.cpuload,
 897                                                         td->o.cpucycle);
 898                         } else {
 899                                 char *c1, *c2, *c3, *c4, *c5, *c6;
 900
 901                                 c1 = to_kmg(td->o.min_bs[DDIR_READ]);
 902                                 c2 = to_kmg(td->o.max_bs[DDIR_READ]);
 903                                 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
 904                                 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
 905                                 c5 = to_kmg(td->o.min_bs[DDIR_TRIM]);
 906                                 c6 = to_kmg(td->o.max_bs[DDIR_TRIM]);
 907
 908                                 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s/%s-%s,"
 909                                          " ioengine=%s, iodepth=%u\n",
 910                                                 td->o.name, td->groupid,
 911                                                 ddir_str[td->o.td_ddir],
 912                                                 c1, c2, c3, c4, c5, c6,
 913                                                 td->io_ops->name,
 914                                                 td->o.iodepth);
 915
 916                                 free(c1);
 917                                 free(c2);
 918                                 free(c3);
 919                                 free(c4);
 920                                 free(c5);
 921                                 free(c6);
 922                         }
 923                 } else if (job_add_num == 1)
 924                         log_info("...\n");
 925         }
 926
 927         /*
 928          * recurse add identical jobs, clear numjobs and stonewall options
 929          * as they don't apply to sub-jobs
 930          */
 931         numjobs = td->o.numjobs;
 932         while (--numjobs) {
 933                 struct thread_data *td_new = get_new_job(0, td, 1);
 934
 935                 if (!td_new)
 936                         goto err;
 937
 938                 td_new->o.numjobs = 1;
 939                 td_new->o.stonewall = 0;
 940                 td_new->o.new_group = 0;
 941
 942                 if (file_alloced) {
 943                         td_new->o.filename = NULL;
 944                         td_new->files_index = 0;
 945                         td_new->files_size = 0;
 946                         td_new->files = NULL;
 947                 }
 948
 949                 job_add_num = numjobs - 1;
 950
 951                 if (add_job(td_new, jobname, job_add_num))
 952                         goto err;
 953         }
 954
 955         return 0;
 956 err:
 957         put_job(td);
 958         return -1;
 959 }
 960
 961 /*
 962  * Parse as if 'o' was a command line
 963  */
 964 void add_job_opts(const char **o)
 965 {
 966         struct thread_data *td, *td_parent;
 967         int i, in_global = 1;
 968         char jobname[32];
 969
 970         i = 0;
 971         td_parent = td = NULL;
 972         while (o[i]) {
 973                 if (!strncmp(o[i], "name", 4)) {
 974                         in_global = 0;
 975                         if (td)
 976                                 add_job(td, jobname, 0);
 977                         td = NULL;
 978                         sprintf(jobname, "%s", o[i] + 5);
 979                 }
 980                 if (in_global && !td_parent)
 981                         td_parent = get_new_job(1, &def_thread, 0);
 982                 else if (!in_global && !td) {
 983                         if (!td_parent)
 984                                 td_parent = &def_thread;
 985                         td = get_new_job(0, td_parent, 0);
 986                 }
 987                 if (in_global)
 988                         fio_options_parse(td_parent, (char **) &o[i], 1);
 989                 else
 990                         fio_options_parse(td, (char **) &o[i], 1);
 991                 i++;
 992         }
 993
 994         if (td)
 995                 add_job(td, jobname, 0);
 996 }
 997
 998 static int skip_this_section(const char *name)
 999 {
1000         int i;
1001
1002         if (!nr_job_sections)
1003                 return 0;
1004         if (!strncmp(name, "global", 6))
1005                 return 0;
1006
1007         for (i = 0; i < nr_job_sections; i++)
1008                 if (!strcmp(job_sections[i], name))
1009                         return 0;
1010
1011         return 1;
1012 }
1013
1014 static int is_empty_or_comment(char *line)
1015 {
1016         unsigned int i;
1017
1018         for (i = 0; i < strlen(line); i++) {
1019                 if (line[i] == ';')
1020                         return 1;
1021                 if (line[i] == '#')
1022                         return 1;
1023                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1024                         return 0;
1025         }
1026
1027         return 1;
1028 }
1029
1030 /*
1031  * This is our [ini] type file parser.
1032  */
1033 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag)
1034 {
1035         unsigned int global;
1036         struct thread_data *td;
1037         char *string, *name;
1038         FILE *f;
1039         char *p;
1040         int ret = 0, stonewall;
1041         int first_sect = 1;
1042         int skip_fgets = 0;
1043         int inside_skip = 0;
1044         char **opts;
1045         int i, alloc_opts, num_opts;
1046
1047         if (is_buf)
1048                 f = NULL;
1049         else {
1050                 if (!strcmp(file, "-"))
1051                         f = stdin;
1052                 else
1053                         f = fopen(file, "r");
1054
1055                 if (!f) {
1056                         perror("fopen job file");
1057                         return 1;
1058                 }
1059         }
1060
1061         string = malloc(4096);
1062
1063         /*
1064          * it's really 256 + small bit, 280 should suffice
1065          */
1066         name = malloc(280);
1067         memset(name, 0, 280);
1068
1069         alloc_opts = 8;
1070         opts = malloc(sizeof(char *) * alloc_opts);
1071         num_opts = 0;
1072
1073         stonewall = stonewall_flag;
1074         do {
1075                 /*
1076                  * if skip_fgets is set, we already have loaded a line we
1077                  * haven't handled.
1078                  */
1079                 if (!skip_fgets) {
1080                         if (is_buf)
1081                                 p = strsep(&file, "\n");
1082                         else
1083                                 p = fgets(string, 4096, f);
1084                         if (!p)
1085                                 break;
1086                 }
1087
1088                 skip_fgets = 0;
1089                 strip_blank_front(&p);
1090                 strip_blank_end(p);
1091
1092                 if (is_empty_or_comment(p))
1093                         continue;
1094                 if (sscanf(p, "[%255[^\n]]", name) != 1) {
1095                         if (inside_skip)
1096                                 continue;
1097                         log_err("fio: option <%s> outside of [] job section\n",
1098                                                                         p);
1099                         break;
1100                 }
1101
1102                 name[strlen(name) - 1] = '\0';
1103
1104                 if (skip_this_section(name)) {
1105                         inside_skip = 1;
1106                         continue;
1107                 } else
1108                         inside_skip = 0;
1109
1110                 global = !strncmp(name, "global", 6);
1111
1112                 if (dump_cmdline) {
1113                         if (first_sect)
1114                                 log_info("fio ");
1115                         if (!global)
1116                                 log_info("--name=%s ", name);
1117                         first_sect = 0;
1118                 }
1119
1120                 td = get_new_job(global, &def_thread, 0);
1121                 if (!td) {
1122                         ret = 1;
1123                         break;
1124                 }
1125
1126                 /*
1127                  * Seperate multiple job files by a stonewall
1128                  */
1129                 if (!global && stonewall) {
1130                         td->o.stonewall = stonewall;
1131                         stonewall = 0;
1132                 }
1133
1134                 num_opts = 0;
1135                 memset(opts, 0, alloc_opts * sizeof(char *));
1136
1137                 while (1) {
1138                         if (is_buf)
1139                                 p = strsep(&file, "\n");
1140                         else
1141                                 p = fgets(string, 4096, f);
1142                         if (!p)
1143                                 break;
1144
1145                         if (is_empty_or_comment(p))
1146                                 continue;
1147
1148                         strip_blank_front(&p);
1149
1150                         /*
1151                          * new section, break out and make sure we don't
1152                          * fgets() a new line at the top.
1153                          */
1154                         if (p[0] == '[') {
1155                                 skip_fgets = 1;
1156                                 break;
1157                         }
1158
1159                         strip_blank_end(p);
1160
1161                         if (num_opts == alloc_opts) {
1162                                 alloc_opts <<= 1;
1163                                 opts = realloc(opts,
1164                                                 alloc_opts * sizeof(char *));
1165                         }
1166
1167                         opts[num_opts] = strdup(p);
1168                         num_opts++;
1169                 }
1170
1171                 ret = fio_options_parse(td, opts, num_opts);
1172                 if (!ret) {
1173                         if (dump_cmdline)
1174                                 for (i = 0; i < num_opts; i++)
1175                                         log_info("--%s ", opts[i]);
1176
1177                         ret = add_job(td, name, 0);
1178                 } else {
1179                         log_err("fio: job %s dropped\n", name);
1180                         put_job(td);
1181                 }
1182
1183                 for (i = 0; i < num_opts; i++)
1184                         free(opts[i]);
1185                 num_opts = 0;
1186         } while (!ret);
1187
1188         if (dump_cmdline)
1189                 log_info("\n");
1190
1191         i = 0;
1192         while (i < nr_job_sections) {
1193                 free(job_sections[i]);
1194                 i++;
1195         }
1196
1197         for (i = 0; i < num_opts; i++)
1198                 free(opts[i]);
1199
1200         free(string);
1201         free(name);
1202         free(opts);
1203         if (!is_buf && f != stdin)
1204                 fclose(f);
1205         return ret;
1206 }
1207
1208 static int fill_def_thread(void)
1209 {
1210         memset(&def_thread, 0, sizeof(def_thread));
1211
1212         fio_getaffinity(getpid(), &def_thread.o.cpumask);
1213         def_thread.o.timeout = def_timeout;
1214         def_thread.o.error_dump = 1;
1215         /*
1216          * fill default options
1217          */
1218         fio_fill_default_options(&def_thread);
1219         return 0;
1220 }
1221
1222 static void usage(const char *name)
1223 {
1224         printf("%s\n", fio_version_string);
1225         printf("%s [options] [job options] <job file(s)>\n", name);
1226         printf("  --debug=options\tEnable debug logging. May be one/more of:\n"
1227                 "\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
1228                 "\t\t\tdiskutil,job,mutex,profile,time,net\n");
1229         printf("  --output\t\tWrite output to file\n");
1230         printf("  --runtime\t\tRuntime in seconds\n");
1231         printf("  --latency-log\t\tGenerate per-job latency logs\n");
1232         printf("  --bandwidth-log\tGenerate per-job bandwidth logs\n");
1233         printf("  --minimal\t\tMinimal (terse) output\n");
1234         printf("  --output-format=x\tOutput format (terse,json,normal)\n");
1235         printf("  --terse-version=x\tSet terse version output format to 'x'\n");
1236         printf("  --version\t\tPrint version info and exit\n");
1237         printf("  --help\t\tPrint this page\n");
1238         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
1239                 " them\n");
1240         printf("  --enghelp=engine\tPrint ioengine help, or list"
1241                 " available ioengines\n");
1242         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
1243                 " cmd\n");
1244         printf("  --showcmd\t\tTurn a job file into command line options\n");
1245         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
1246         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
1247         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
1248                 " writes\n");
1249         printf("  --section=name\tOnly run specified section in job file\n");
1250         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
1251                 " (def 1024)\n");
1252         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
1253         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1254         printf("  --server=args\t\tStart a backend fio server\n");
1255         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
1256         printf("  --client=hostname\tTalk to remote backend fio server at hostname\n");
1257         printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1258         printf("\n                 Jens Axboe <jaxboe@fusionio.com>\n");
1259 }
1260
1261 #ifdef FIO_INC_DEBUG
1262 struct debug_level debug_levels[] = {
1263         { .name = "process",    .shift = FD_PROCESS, },
1264         { .name = "file",       .shift = FD_FILE, },
1265         { .name = "io",         .shift = FD_IO, },
1266         { .name = "mem",        .shift = FD_MEM, },
1267         { .name = "blktrace",   .shift = FD_BLKTRACE },
1268         { .name = "verify",     .shift = FD_VERIFY },
1269         { .name = "random",     .shift = FD_RANDOM },
1270         { .name = "parse",      .shift = FD_PARSE },
1271         { .name = "diskutil",   .shift = FD_DISKUTIL },
1272         { .name = "job",        .shift = FD_JOB },
1273         { .name = "mutex",      .shift = FD_MUTEX },
1274         { .name = "profile",    .shift = FD_PROFILE },
1275         { .name = "time",       .shift = FD_TIME },
1276         { .name = "net",        .shift = FD_NET },
1277         { .name = NULL, },
1278 };
1279
1280 static int set_debug(const char *string)
1281 {
1282         struct debug_level *dl;
1283         char *p = (char *) string;
1284         char *opt;
1285         int i;
1286
1287         if (!strcmp(string, "?") || !strcmp(string, "help")) {
1288                 log_info("fio: dumping debug options:");
1289                 for (i = 0; debug_levels[i].name; i++) {
1290                         dl = &debug_levels[i];
1291                         log_info("%s,", dl->name);
1292                 }
1293                 log_info("all\n");
1294                 return 1;
1295         }
1296
1297         while ((opt = strsep(&p, ",")) != NULL) {
1298                 int found = 0;
1299
1300                 if (!strncmp(opt, "all", 3)) {
1301                         log_info("fio: set all debug options\n");
1302                         fio_debug = ~0UL;
1303                         continue;
1304                 }
1305
1306                 for (i = 0; debug_levels[i].name; i++) {
1307                         dl = &debug_levels[i];
1308                         found = !strncmp(opt, dl->name, strlen(dl->name));
1309                         if (!found)
1310                                 continue;
1311
1312                         if (dl->shift == FD_JOB) {
1313                                 opt = strchr(opt, ':');
1314                                 if (!opt) {
1315                                         log_err("fio: missing job number\n");
1316                                         break;
1317                                 }
1318                                 opt++;
1319                                 fio_debug_jobno = atoi(opt);
1320                                 log_info("fio: set debug jobno %d\n",
1321                                                         fio_debug_jobno);
1322                         } else {
1323                                 log_info("fio: set debug option %s\n", opt);
1324                                 fio_debug |= (1UL << dl->shift);
1325                         }
1326                         break;
1327                 }
1328
1329                 if (!found)
1330                         log_err("fio: debug mask %s not found\n", opt);
1331         }
1332         return 0;
1333 }
1334 #else
1335 static int set_debug(const char *string)
1336 {
1337         log_err("fio: debug tracing not included in build\n");
1338         return 1;
1339 }
1340 #endif
1341
1342 static void fio_options_fill_optstring(void)
1343 {
1344         char *ostr = cmd_optstr;
1345         int i, c;
1346
1347         c = i = 0;
1348         while (l_opts[i].name) {
1349                 ostr[c++] = l_opts[i].val;
1350                 if (l_opts[i].has_arg == required_argument)
1351                         ostr[c++] = ':';
1352                 else if (l_opts[i].has_arg == optional_argument) {
1353                         ostr[c++] = ':';
1354                         ostr[c++] = ':';
1355                 }
1356                 i++;
1357         }
1358         ostr[c] = '\0';
1359 }
1360
1361 static int client_flag_set(char c)
1362 {
1363         int i;
1364
1365         i = 0;
1366         while (l_opts[i].name) {
1367                 int val = l_opts[i].val;
1368
1369                 if (c == (val & 0xff))
1370                         return (val & FIO_CLIENT_FLAG);
1371
1372                 i++;
1373         }
1374
1375         return 0;
1376 }
1377
1378 void parse_cmd_client(void *client, char *opt)
1379 {
1380         fio_client_add_cmd_option(client, opt);
1381 }
1382
1383 int parse_cmd_line(int argc, char *argv[])
1384 {
1385         struct thread_data *td = NULL;
1386         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1387         char *ostr = cmd_optstr;
1388         void *pid_file = NULL;
1389         void *cur_client = NULL;
1390         int backend = 0;
1391
1392         /*
1393          * Reset optind handling, since we may call this multiple times
1394          * for the backend.
1395          */
1396         optind = 1;
1397
1398         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1399                 did_arg = 1;
1400
1401                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1402                         parse_cmd_client(cur_client, argv[optind - 1]);
1403                         c &= ~FIO_CLIENT_FLAG;
1404                 }
1405
1406                 switch (c) {
1407                 case 'a':
1408                         smalloc_pool_size = atoi(optarg);
1409                         break;
1410                 case 't':
1411                         def_timeout = atoi(optarg);
1412                         break;
1413                 case 'l':
1414                         write_lat_log = 1;
1415                         break;
1416                 case 'b':
1417                         write_bw_log = 1;
1418                         break;
1419                 case 'o':
1420                         f_out = fopen(optarg, "w+");
1421                         if (!f_out) {
1422                                 perror("fopen output");
1423                                 exit(1);
1424                         }
1425                         f_err = f_out;
1426                         break;
1427                 case 'm':
1428                         output_format = FIO_OUTPUT_TERSE;
1429                         break;
1430                 case 'F':
1431                         if (!strcmp(optarg, "minimal") ||
1432                             !strcmp(optarg, "terse") ||
1433                             !strcmp(optarg, "csv"))
1434                                 output_format = FIO_OUTPUT_TERSE;
1435                         else if (!strcmp(optarg, "json"))
1436                                 output_format = FIO_OUTPUT_JSON;
1437                         else
1438                                 output_format = FIO_OUTPUT_NORMAL;
1439                         break;
1440                 case 'h':
1441                         if (!cur_client) {
1442                                 usage(argv[0]);
1443                                 do_exit++;
1444                         }
1445                         break;
1446                 case 'c':
1447                         if (!cur_client) {
1448                                 fio_show_option_help(optarg);
1449                                 do_exit++;
1450                         }
1451                         break;
1452                 case 'i':
1453                         if (!cur_client) {
1454                                 fio_show_ioengine_help(optarg);
1455                                 do_exit++;
1456                         }
1457                         break;
1458                 case 's':
1459                         dump_cmdline = 1;
1460                         break;
1461                 case 'r':
1462                         read_only = 1;
1463                         break;
1464                 case 'v':
1465                         if (!cur_client) {
1466                                 log_info("%s\n", fio_version_string);
1467                                 do_exit++;
1468                         }
1469                         break;
1470                 case 'V':
1471                         terse_version = atoi(optarg);
1472                         if (!(terse_version == 2 || terse_version == 3 ||
1473                              terse_version == 4)) {
1474                                 log_err("fio: bad terse version format\n");
1475                                 exit_val = 1;
1476                                 do_exit++;
1477                         }
1478                         break;
1479                 case 'e':
1480                         if (!strcmp("always", optarg))
1481                                 eta_print = FIO_ETA_ALWAYS;
1482                         else if (!strcmp("never", optarg))
1483                                 eta_print = FIO_ETA_NEVER;
1484                         break;
1485                 case 'd':
1486                         if (set_debug(optarg))
1487                                 do_exit++;
1488                         break;
1489                 case 'x': {
1490                         size_t new_size;
1491
1492                         if (!strcmp(optarg, "global")) {
1493                                 log_err("fio: can't use global as only "
1494                                         "section\n");
1495                                 do_exit++;
1496                                 exit_val = 1;
1497                                 break;
1498                         }
1499                         new_size = (nr_job_sections + 1) * sizeof(char *);
1500                         job_sections = realloc(job_sections, new_size);
1501                         job_sections[nr_job_sections] = strdup(optarg);
1502                         nr_job_sections++;
1503                         break;
1504                         }
1505                 case 'p':
1506                         exec_profile = strdup(optarg);
1507                         break;
1508                 case FIO_GETOPT_JOB: {
1509                         const char *opt = l_opts[lidx].name;
1510                         char *val = optarg;
1511
1512                         if (!strncmp(opt, "name", 4) && td) {
1513                                 ret = add_job(td, td->o.name ?: "fio", 0);
1514                                 if (ret)
1515                                         return 0;
1516                                 td = NULL;
1517                         }
1518                         if (!td) {
1519                                 int is_section = !strncmp(opt, "name", 4);
1520                                 int global = 0;
1521
1522                                 if (!is_section || !strncmp(val, "global", 6))
1523                                         global = 1;
1524
1525                                 if (is_section && skip_this_section(val))
1526                                         continue;
1527
1528                                 td = get_new_job(global, &def_thread, 1);
1529                                 if (!td || ioengine_load(td))
1530                                         return 0;
1531                                 fio_options_set_ioengine_opts(l_opts, td);
1532                         }
1533
1534                         ret = fio_cmd_option_parse(td, opt, val);
1535
1536                         if (!ret && !strcmp(opt, "ioengine")) {
1537                                 free_ioengine(td);
1538                                 if (ioengine_load(td))
1539                                         return 0;
1540                                 fio_options_set_ioengine_opts(l_opts, td);
1541                         }
1542                         break;
1543                 }
1544                 case FIO_GETOPT_IOENGINE: {
1545                         const char *opt = l_opts[lidx].name;
1546                         char *val = optarg;
1547                         opt = l_opts[lidx].name;
1548                         val = optarg;
1549                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
1550                         break;
1551                 }
1552                 case 'w':
1553                         warnings_fatal = 1;
1554                         break;
1555                 case 'j':
1556                         max_jobs = atoi(optarg);
1557                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
1558                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
1559                                 do_exit++;
1560                                 exit_val = 1;
1561                         }
1562                         break;
1563                 case 'S':
1564                         if (nr_clients) {
1565                                 log_err("fio: can't be both client and server\n");
1566                                 do_exit++;
1567                                 exit_val = 1;
1568                                 break;
1569                         }
1570                         if (optarg)
1571                                 fio_server_set_arg(optarg);
1572                         is_backend = 1;
1573                         backend = 1;
1574                         break;
1575                 case 'D':
1576                         pid_file = strdup(optarg);
1577                         break;
1578                 case 'C':
1579                         if (is_backend) {
1580                                 log_err("fio: can't be both client and server\n");
1581                                 do_exit++;
1582                                 exit_val = 1;
1583                                 break;
1584                         }
1585                         if (fio_client_add(optarg, &cur_client)) {
1586                                 log_err("fio: failed adding client %s\n", optarg);
1587                                 do_exit++;
1588                                 exit_val = 1;
1589                                 break;
1590                         }
1591                         /*
1592                          * If the next argument exists and isn't an option,
1593                          * assume it's a job file for this client only.
1594                          */
1595                         while (optind < argc) {
1596                                 if (!strncmp(argv[optind], "--", 2) ||
1597                                     !strncmp(argv[optind], "-", 1))
1598                                         break;
1599
1600                                 fio_client_add_ini_file(cur_client, argv[optind]);
1601                                 optind++;
1602                         }
1603                         break;
1604                 default:
1605                         do_exit++;
1606                         exit_val = 1;
1607                         break;
1608                 }
1609                 if (do_exit)
1610                         break;
1611         }
1612
1613         if (do_exit) {
1614                 if (exit_val && !(is_backend || nr_clients))
1615                         exit(exit_val);
1616         }
1617
1618         if (nr_clients && fio_clients_connect()) {
1619                 do_exit++;
1620                 exit_val = 1;
1621                 return -1;
1622         }
1623
1624         if (is_backend && backend)
1625                 return fio_start_server(pid_file);
1626
1627         if (td) {
1628                 if (!ret)
1629                         ret = add_job(td, td->o.name ?: "fio", 0);
1630         }
1631
1632         while (!ret && optind < argc) {
1633                 ini_idx++;
1634                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1635                 ini_file[ini_idx - 1] = strdup(argv[optind]);
1636                 optind++;
1637         }
1638
1639         return ini_idx;
1640 }
1641
1642 int parse_options(int argc, char *argv[])
1643 {
1644         int job_files, i;
1645
1646         f_out = stdout;
1647         f_err = stderr;
1648
1649         fio_options_fill_optstring();
1650         fio_options_dup_and_init(l_opts);
1651
1652         atexit(free_shm);
1653
1654         if (fill_def_thread())
1655                 return 1;
1656
1657         job_files = parse_cmd_line(argc, argv);
1658
1659         if (job_files > 0) {
1660                 for (i = 0; i < job_files; i++) {
1661                         if (fill_def_thread())
1662                                 return 1;
1663                         if (nr_clients) {
1664                                 if (fio_clients_send_ini(ini_file[i]))
1665                                         return 1;
1666                                 free(ini_file[i]);
1667                         } else if (!is_backend) {
1668                                 if (parse_jobs_ini(ini_file[i], 0, i))
1669                                         return 1;
1670                                 free(ini_file[i]);
1671                         }
1672                 }
1673         } else if (nr_clients) {
1674                 if (fill_def_thread())
1675                         return 1;
1676                 if (fio_clients_send_ini(NULL))
1677                         return 1;
1678         }
1679
1680         free(ini_file);
1681         fio_options_free(&def_thread);
1682
1683         if (!thread_number) {
1684                 if (dump_cmdline)
1685                         return 0;
1686                 if (exec_profile)
1687                         return 0;
1688                 if (is_backend || nr_clients)
1689                         return 0;
1690                 if (did_arg)
1691                         return 0;
1692
1693                 log_err("No jobs(s) defined\n\n");
1694
1695                 if (!did_arg) {
1696                         usage(argv[0]);
1697                         return 1;
1698                 }
1699
1700                 return 0;
1701         }
1702
1703         if (def_thread.o.gtod_offload) {
1704                 fio_gtod_init();
1705                 fio_gtod_offload = 1;
1706                 fio_gtod_cpu = def_thread.o.gtod_cpu;
1707         }
1708
1709         if (output_format == FIO_OUTPUT_NORMAL)
1710                 log_info("%s\n", fio_version_string);
1711
1712         return 0;
1713 }