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 <ctype.h>
   8 #include <string.h>
   9 #include <errno.h>
  10 #include <sys/ipc.h>
  11 #include <sys/types.h>
  12 #include <dlfcn.h>
  13 #ifdef CONFIG_VALGRIND_DEV
  14 #include <valgrind/drd.h>
  15 #else
  16 #define DRD_IGNORE_VAR(x) do { } while (0)
  17 #endif
  18
  19 #include "fio.h"
  20 #ifndef FIO_NO_HAVE_SHM_H
  21 #include <sys/shm.h>
  22 #endif
  23
  24 #include "parse.h"
  25 #include "smalloc.h"
  26 #include "filehash.h"
  27 #include "verify.h"
  28 #include "profile.h"
  29 #include "server.h"
  30 #include "idletime.h"
  31 #include "filelock.h"
  32 #include "steadystate.h"
  33 #include "blktrace.h"
  34
  35 #include "oslib/asprintf.h"
  36 #include "oslib/getopt.h"
  37 #include "oslib/strcasestr.h"
  38
  39 #include "crc/test.h"
  40 #include "lib/pow2.h"
  41 #include "lib/memcpy.h"
  42
  43 const char fio_version_string[] = FIO_VERSION;
  44
  45 #define FIO_RANDSEED            (0xb1899bedUL)
  46
  47 static char **ini_file;
  48 static int max_jobs = FIO_MAX_JOBS;
  49 static bool dump_cmdline;
  50 static bool parse_only;
  51 static bool merge_blktrace_only;
  52
  53 static struct thread_data def_thread;
  54 struct thread_data *threads = NULL;
  55 static char **job_sections;
  56 static int nr_job_sections;
  57
  58 bool exitall_on_terminate = false;
  59 int output_format = FIO_OUTPUT_NORMAL;
  60 int eta_print = FIO_ETA_AUTO;
  61 unsigned int eta_interval_msec = 1000;
  62 int eta_new_line = 0;
  63 FILE *f_out = NULL;
  64 FILE *f_err = NULL;
  65 char *exec_profile = NULL;
  66 int warnings_fatal = 0;
  67 int terse_version = 3;
  68 bool is_backend = false;
  69 bool is_local_backend = false;
  70 int nr_clients = 0;
  71 bool log_syslog = false;
  72
  73 bool write_bw_log = false;
  74 bool read_only = false;
  75 int status_interval = 0;
  76
  77 char *trigger_file = NULL;
  78 long long trigger_timeout = 0;
  79 char *trigger_cmd = NULL;
  80 char *trigger_remote_cmd = NULL;
  81
  82 char *aux_path = NULL;
  83
  84 static int prev_group_jobs;
  85
  86 unsigned long fio_debug = 0;
  87 unsigned int fio_debug_jobno = -1;
  88 unsigned int *fio_debug_jobp = NULL;
  89 unsigned int *fio_warned = NULL;
  90
  91 static char cmd_optstr[256];
  92 static bool did_arg;
  93
  94 #define FIO_CLIENT_FLAG         (1 << 16)
  95
  96 /*
  97  * Command line options. These will contain the above, plus a few
  98  * extra that only pertain to fio itself and not jobs.
  99  */
 100 static struct option l_opts[FIO_NR_OPTIONS] = {
 101         {
 102                 .name           = (char *) "output",
 103                 .has_arg        = required_argument,
 104                 .val            = 'o' | 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        = no_argument,
 114                 .val            = 'b' | FIO_CLIENT_FLAG,
 115         },
 116         {
 117                 .name           = (char *) "minimal",
 118                 .has_arg        = no_argument,
 119                 .val            = 'm' | FIO_CLIENT_FLAG,
 120         },
 121         {
 122                 .name           = (char *) "output-format",
 123                 .has_arg        = required_argument,
 124                 .val            = 'F' | FIO_CLIENT_FLAG,
 125         },
 126         {
 127                 .name           = (char *) "append-terse",
 128                 .has_arg        = optional_argument,
 129                 .val            = 'f',
 130         },
 131         {
 132                 .name           = (char *) "version",
 133                 .has_arg        = no_argument,
 134                 .val            = 'v' | FIO_CLIENT_FLAG,
 135         },
 136         {
 137                 .name           = (char *) "help",
 138                 .has_arg        = no_argument,
 139                 .val            = 'h' | FIO_CLIENT_FLAG,
 140         },
 141         {
 142                 .name           = (char *) "cmdhelp",
 143                 .has_arg        = optional_argument,
 144                 .val            = 'c' | FIO_CLIENT_FLAG,
 145         },
 146         {
 147                 .name           = (char *) "enghelp",
 148                 .has_arg        = optional_argument,
 149                 .val            = 'i' | FIO_CLIENT_FLAG,
 150         },
 151         {
 152                 .name           = (char *) "showcmd",
 153                 .has_arg        = no_argument,
 154                 .val            = 's' | FIO_CLIENT_FLAG,
 155         },
 156         {
 157                 .name           = (char *) "readonly",
 158                 .has_arg        = no_argument,
 159                 .val            = 'r' | FIO_CLIENT_FLAG,
 160         },
 161         {
 162                 .name           = (char *) "eta",
 163                 .has_arg        = required_argument,
 164                 .val            = 'e' | FIO_CLIENT_FLAG,
 165         },
 166         {
 167                 .name           = (char *) "eta-interval",
 168                 .has_arg        = required_argument,
 169                 .val            = 'O' | FIO_CLIENT_FLAG,
 170         },
 171         {
 172                 .name           = (char *) "eta-newline",
 173                 .has_arg        = required_argument,
 174                 .val            = 'E' | FIO_CLIENT_FLAG,
 175         },
 176         {
 177                 .name           = (char *) "debug",
 178                 .has_arg        = required_argument,
 179                 .val            = 'd' | FIO_CLIENT_FLAG,
 180         },
 181         {
 182                 .name           = (char *) "parse-only",
 183                 .has_arg        = no_argument,
 184                 .val            = 'P' | FIO_CLIENT_FLAG,
 185         },
 186         {
 187                 .name           = (char *) "section",
 188                 .has_arg        = required_argument,
 189                 .val            = 'x' | FIO_CLIENT_FLAG,
 190         },
 191 #ifdef CONFIG_ZLIB
 192         {
 193                 .name           = (char *) "inflate-log",
 194                 .has_arg        = required_argument,
 195                 .val            = 'X' | FIO_CLIENT_FLAG,
 196         },
 197 #endif
 198         {
 199                 .name           = (char *) "alloc-size",
 200                 .has_arg        = required_argument,
 201                 .val            = 'a' | FIO_CLIENT_FLAG,
 202         },
 203         {
 204                 .name           = (char *) "profile",
 205                 .has_arg        = required_argument,
 206                 .val            = 'p' | FIO_CLIENT_FLAG,
 207         },
 208         {
 209                 .name           = (char *) "warnings-fatal",
 210                 .has_arg        = no_argument,
 211                 .val            = 'w' | FIO_CLIENT_FLAG,
 212         },
 213         {
 214                 .name           = (char *) "max-jobs",
 215                 .has_arg        = required_argument,
 216                 .val            = 'j' | FIO_CLIENT_FLAG,
 217         },
 218         {
 219                 .name           = (char *) "terse-version",
 220                 .has_arg        = required_argument,
 221                 .val            = 'V' | FIO_CLIENT_FLAG,
 222         },
 223         {
 224                 .name           = (char *) "server",
 225                 .has_arg        = optional_argument,
 226                 .val            = 'S',
 227         },
 228         {       .name           = (char *) "daemonize",
 229                 .has_arg        = required_argument,
 230                 .val            = 'D',
 231         },
 232         {
 233                 .name           = (char *) "client",
 234                 .has_arg        = required_argument,
 235                 .val            = 'C',
 236         },
 237         {
 238                 .name           = (char *) "remote-config",
 239                 .has_arg        = required_argument,
 240                 .val            = 'R',
 241         },
 242         {
 243                 .name           = (char *) "cpuclock-test",
 244                 .has_arg        = no_argument,
 245                 .val            = 'T',
 246         },
 247         {
 248                 .name           = (char *) "crctest",
 249                 .has_arg        = optional_argument,
 250                 .val            = 'G',
 251         },
 252         {
 253                 .name           = (char *) "memcpytest",
 254                 .has_arg        = optional_argument,
 255                 .val            = 'M',
 256         },
 257         {
 258                 .name           = (char *) "idle-prof",
 259                 .has_arg        = required_argument,
 260                 .val            = 'I',
 261         },
 262         {
 263                 .name           = (char *) "status-interval",
 264                 .has_arg        = required_argument,
 265                 .val            = 'L' | FIO_CLIENT_FLAG,
 266         },
 267         {
 268                 .name           = (char *) "trigger-file",
 269                 .has_arg        = required_argument,
 270                 .val            = 'W',
 271         },
 272         {
 273                 .name           = (char *) "trigger-timeout",
 274                 .has_arg        = required_argument,
 275                 .val            = 'B',
 276         },
 277         {
 278                 .name           = (char *) "trigger",
 279                 .has_arg        = required_argument,
 280                 .val            = 'H',
 281         },
 282         {
 283                 .name           = (char *) "trigger-remote",
 284                 .has_arg        = required_argument,
 285                 .val            = 'J',
 286         },
 287         {
 288                 .name           = (char *) "aux-path",
 289                 .has_arg        = required_argument,
 290                 .val            = 'K',
 291         },
 292         {
 293                 .name           = (char *) "merge-blktrace-only",
 294                 .has_arg        = no_argument,
 295                 .val            = 'A' | FIO_CLIENT_FLAG,
 296         },
 297         {
 298                 .name           = NULL,
 299         },
 300 };
 301
 302 void free_threads_shm(void)
 303 {
 304         if (threads) {
 305                 void *tp = threads;
 306 #ifndef CONFIG_NO_SHM
 307                 struct shmid_ds sbuf;
 308
 309                 threads = NULL;
 310                 shmdt(tp);
 311                 shmctl(shm_id, IPC_RMID, &sbuf);
 312                 shm_id = -1;
 313 #else
 314                 threads = NULL;
 315                 free(tp);
 316 #endif
 317         }
 318 }
 319
 320 static void free_shm(void)
 321 {
 322         if (threads) {
 323                 flow_exit();
 324                 fio_debug_jobp = NULL;
 325                 fio_warned = NULL;
 326                 free_threads_shm();
 327         }
 328
 329         free(trigger_file);
 330         free(trigger_cmd);
 331         free(trigger_remote_cmd);
 332         trigger_file = trigger_cmd = trigger_remote_cmd = NULL;
 333
 334         options_free(fio_options, &def_thread.o);
 335         fio_filelock_exit();
 336         file_hash_exit();
 337         scleanup();
 338 }
 339
 340 /*
 341  * The thread area is shared between the main process and the job
 342  * threads/processes. So setup a shared memory segment that will hold
 343  * all the job info. We use the end of the region for keeping track of
 344  * open files across jobs, for file sharing.
 345  */
 346 static int setup_thread_area(void)
 347 {
 348         int i;
 349
 350         if (threads)
 351                 return 0;
 352
 353         /*
 354          * 1024 is too much on some machines, scale max_jobs if
 355          * we get a failure that looks like too large a shm segment
 356          */
 357         do {
 358                 size_t size = max_jobs * sizeof(struct thread_data);
 359
 360                 size += 2 * sizeof(unsigned int);
 361
 362 #ifndef CONFIG_NO_SHM
 363                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 364                 if (shm_id != -1)
 365                         break;
 366                 if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
 367                         perror("shmget");
 368                         break;
 369                 }
 370 #else
 371                 threads = malloc(size);
 372                 if (threads)
 373                         break;
 374 #endif
 375
 376                 max_jobs >>= 1;
 377         } while (max_jobs);
 378
 379 #ifndef CONFIG_NO_SHM
 380         if (shm_id == -1)
 381                 return 1;
 382
 383         threads = shmat(shm_id, NULL, 0);
 384         if (threads == (void *) -1) {
 385                 perror("shmat");
 386                 return 1;
 387         }
 388         if (shm_attach_to_open_removed())
 389                 shmctl(shm_id, IPC_RMID, NULL);
 390 #endif
 391
 392         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 393         for (i = 0; i < max_jobs; i++)
 394                 DRD_IGNORE_VAR(threads[i]);
 395         fio_debug_jobp = (unsigned int *)(threads + max_jobs);
 396         *fio_debug_jobp = -1;
 397         fio_warned = fio_debug_jobp + 1;
 398         *fio_warned = 0;
 399
 400         flow_init();
 401
 402         return 0;
 403 }
 404
 405 static void dump_print_option(struct print_option *p)
 406 {
 407         const char *delim;
 408
 409         if (!strcmp("description", p->name))
 410                 delim = "\"";
 411         else
 412                 delim = "";
 413
 414         log_info("--%s%s", p->name, p->value ? "" : " ");
 415         if (p->value)
 416                 log_info("=%s%s%s ", delim, p->value, delim);
 417 }
 418
 419 static void dump_opt_list(struct thread_data *td)
 420 {
 421         struct flist_head *entry;
 422         struct print_option *p;
 423
 424         if (flist_empty(&td->opt_list))
 425                 return;
 426
 427         flist_for_each(entry, &td->opt_list) {
 428                 p = flist_entry(entry, struct print_option, list);
 429                 dump_print_option(p);
 430         }
 431 }
 432
 433 static void fio_dump_options_free(struct thread_data *td)
 434 {
 435         while (!flist_empty(&td->opt_list)) {
 436                 struct print_option *p;
 437
 438                 p = flist_first_entry(&td->opt_list, struct print_option, list);
 439                 flist_del_init(&p->list);
 440                 free(p->name);
 441                 free(p->value);
 442                 free(p);
 443         }
 444 }
 445
 446 static void copy_opt_list(struct thread_data *dst, struct thread_data *src)
 447 {
 448         struct flist_head *entry;
 449
 450         if (flist_empty(&src->opt_list))
 451                 return;
 452
 453         flist_for_each(entry, &src->opt_list) {
 454                 struct print_option *srcp, *dstp;
 455
 456                 srcp = flist_entry(entry, struct print_option, list);
 457                 dstp = malloc(sizeof(*dstp));
 458                 dstp->name = strdup(srcp->name);
 459                 if (srcp->value)
 460                         dstp->value = strdup(srcp->value);
 461                 else
 462                         dstp->value = NULL;
 463                 flist_add_tail(&dstp->list, &dst->opt_list);
 464         }
 465 }
 466
 467 /*
 468  * Return a free job structure.
 469  */
 470 static struct thread_data *get_new_job(bool global, struct thread_data *parent,
 471                                        bool preserve_eo, const char *jobname)
 472 {
 473         struct thread_data *td;
 474
 475         if (global)
 476                 return &def_thread;
 477         if (setup_thread_area()) {
 478                 log_err("error: failed to setup shm segment\n");
 479                 return NULL;
 480         }
 481         if (thread_number >= max_jobs) {
 482                 log_err("error: maximum number of jobs (%d) reached.\n",
 483                                 max_jobs);
 484                 return NULL;
 485         }
 486
 487         td = &threads[thread_number++];
 488         *td = *parent;
 489
 490         INIT_FLIST_HEAD(&td->opt_list);
 491         if (parent != &def_thread)
 492                 copy_opt_list(td, parent);
 493
 494         td->io_ops = NULL;
 495         td->io_ops_init = 0;
 496         if (!preserve_eo)
 497                 td->eo = NULL;
 498
 499         td->o.uid = td->o.gid = -1U;
 500
 501         dup_files(td, parent);
 502         fio_options_mem_dupe(td);
 503
 504         profile_add_hooks(td);
 505
 506         td->thread_number = thread_number;
 507         td->subjob_number = 0;
 508
 509         if (jobname)
 510                 td->o.name = strdup(jobname);
 511
 512         if (!parent->o.group_reporting || parent == &def_thread)
 513                 stat_number++;
 514
 515         return td;
 516 }
 517
 518 static void put_job(struct thread_data *td)
 519 {
 520         if (td == &def_thread)
 521                 return;
 522
 523         profile_td_exit(td);
 524         flow_exit_job(td);
 525
 526         if (td->error)
 527                 log_info("fio: %s\n", td->verror);
 528
 529         fio_options_free(td);
 530         fio_dump_options_free(td);
 531         if (td->io_ops)
 532                 free_ioengine(td);
 533
 534         if (td->o.name)
 535                 free(td->o.name);
 536
 537         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 538         thread_number--;
 539 }
 540
 541 static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
 542 {
 543         unsigned long long bs = td->o.min_bs[ddir];
 544
 545         assert(ddir_rw(ddir));
 546
 547         if (td->o.rate[ddir])
 548                 td->rate_bps[ddir] = td->o.rate[ddir];
 549         else
 550                 td->rate_bps[ddir] = (uint64_t) td->o.rate_iops[ddir] * bs;
 551
 552         if (!td->rate_bps[ddir]) {
 553                 log_err("rate lower than supported\n");
 554                 return -1;
 555         }
 556
 557         td->rate_next_io_time[ddir] = 0;
 558         td->rate_io_issue_bytes[ddir] = 0;
 559         td->last_usec[ddir] = 0;
 560         return 0;
 561 }
 562
 563 static int setup_rate(struct thread_data *td)
 564 {
 565         int ret = 0;
 566
 567         if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
 568                 ret = __setup_rate(td, DDIR_READ);
 569         if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
 570                 ret |= __setup_rate(td, DDIR_WRITE);
 571         if (td->o.rate[DDIR_TRIM] || td->o.rate_iops[DDIR_TRIM])
 572                 ret |= __setup_rate(td, DDIR_TRIM);
 573
 574         return ret;
 575 }
 576
 577 static int fixed_block_size(struct thread_options *o)
 578 {
 579         return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
 580                 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
 581                 o->min_bs[DDIR_TRIM] == o->max_bs[DDIR_TRIM] &&
 582                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE] &&
 583                 o->min_bs[DDIR_READ] == o->min_bs[DDIR_TRIM];
 584 }
 585
 586 /*
 587  * <3 Johannes
 588  */
 589 static unsigned int gcd(unsigned int m, unsigned int n)
 590 {
 591         if (!n)
 592                 return m;
 593
 594         return gcd(n, m % n);
 595 }
 596
 597 /*
 598  * Lazy way of fixing up options that depend on each other. We could also
 599  * define option callback handlers, but this is easier.
 600  */
 601 static int fixup_options(struct thread_data *td)
 602 {
 603         struct thread_options *o = &td->o;
 604         int ret = 0;
 605
 606         if (read_only && (td_write(td) || td_trim(td))) {
 607                 log_err("fio: trim and write operations are not allowed"
 608                          " with the --readonly parameter.\n");
 609                 ret |= 1;
 610         }
 611
 612 #ifndef CONFIG_PSHARED
 613         if (!o->use_thread) {
 614                 log_info("fio: this platform does not support process shared"
 615                          " mutexes, forcing use of threads. Use the 'thread'"
 616                          " option to get rid of this warning.\n");
 617                 o->use_thread = 1;
 618                 ret |= warnings_fatal;
 619         }
 620 #endif
 621
 622         if (o->write_iolog_file && o->read_iolog_file) {
 623                 log_err("fio: read iolog overrides write_iolog\n");
 624                 free(o->write_iolog_file);
 625                 o->write_iolog_file = NULL;
 626                 ret |= warnings_fatal;
 627         }
 628
 629         if (o->zone_mode == ZONE_MODE_NONE && o->zone_size) {
 630                 log_err("fio: --zonemode=none and --zonesize are not compatible.\n");
 631                 ret |= 1;
 632         }
 633
 634         if (o->zone_mode == ZONE_MODE_STRIDED && !o->zone_size) {
 635                 log_err("fio: --zonesize must be specified when using --zonemode=strided.\n");
 636                 ret |= 1;
 637         }
 638
 639         if (o->zone_mode == ZONE_MODE_NOT_SPECIFIED) {
 640                 if (o->zone_size)
 641                         o->zone_mode = ZONE_MODE_STRIDED;
 642                 else
 643                         o->zone_mode = ZONE_MODE_NONE;
 644         }
 645
 646         /*
 647          * Strided zone mode only really works with 1 file.
 648          */
 649         if (o->zone_mode == ZONE_MODE_STRIDED && o->open_files > 1)
 650                 o->zone_mode = ZONE_MODE_NONE;
 651
 652         /*
 653          * If zone_range isn't specified, backward compatibility dictates it
 654          * should be made equal to zone_size.
 655          */
 656         if (o->zone_mode == ZONE_MODE_STRIDED && !o->zone_range)
 657                 o->zone_range = o->zone_size;
 658
 659         /*
 660          * Reads can do overwrites, we always need to pre-create the file
 661          */
 662         if (td_read(td))
 663                 o->overwrite = 1;
 664
 665         if (!o->min_bs[DDIR_READ])
 666                 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
 667         if (!o->max_bs[DDIR_READ])
 668                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 669         if (!o->min_bs[DDIR_WRITE])
 670                 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 671         if (!o->max_bs[DDIR_WRITE])
 672                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 673         if (!o->min_bs[DDIR_TRIM])
 674                 o->min_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 675         if (!o->max_bs[DDIR_TRIM])
 676                 o->max_bs[DDIR_TRIM] = o->bs[DDIR_TRIM];
 677
 678         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 679         o->rw_min_bs = min(o->min_bs[DDIR_TRIM], o->rw_min_bs);
 680
 681         /*
 682          * For random IO, allow blockalign offset other than min_bs.
 683          */
 684         if (!o->ba[DDIR_READ] || !td_random(td))
 685                 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
 686         if (!o->ba[DDIR_WRITE] || !td_random(td))
 687                 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
 688         if (!o->ba[DDIR_TRIM] || !td_random(td))
 689                 o->ba[DDIR_TRIM] = o->min_bs[DDIR_TRIM];
 690
 691         if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
 692             o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE] ||
 693             o->ba[DDIR_TRIM] != o->min_bs[DDIR_TRIM]) &&
 694             !o->norandommap) {
 695                 log_err("fio: Any use of blockalign= turns off randommap\n");
 696                 o->norandommap = 1;
 697                 ret |= warnings_fatal;
 698         }
 699
 700         if (!o->file_size_high)
 701                 o->file_size_high = o->file_size_low;
 702
 703         if (o->start_delay_high) {
 704                 if (!o->start_delay_orig)
 705                         o->start_delay_orig = o->start_delay;
 706                 o->start_delay = rand_between(&td->delay_state,
 707                                                 o->start_delay_orig,
 708                                                 o->start_delay_high);
 709         }
 710
 711         if (o->norandommap && o->verify != VERIFY_NONE
 712             && !fixed_block_size(o))  {
 713                 log_err("fio: norandommap given for variable block sizes, "
 714                         "verify limited\n");
 715                 ret |= warnings_fatal;
 716         }
 717         if (o->bs_unaligned && (o->odirect || td_ioengine_flagged(td, FIO_RAWIO)))
 718                 log_err("fio: bs_unaligned may not work with raw io\n");
 719
 720         /*
 721          * thinktime_spin must be less than thinktime
 722          */
 723         if (o->thinktime_spin > o->thinktime)
 724                 o->thinktime_spin = o->thinktime;
 725
 726         /*
 727          * The low water mark cannot be bigger than the iodepth
 728          */
 729         if (o->iodepth_low > o->iodepth || !o->iodepth_low)
 730                 o->iodepth_low = o->iodepth;
 731
 732         /*
 733          * If batch number isn't set, default to the same as iodepth
 734          */
 735         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 736                 o->iodepth_batch = o->iodepth;
 737
 738         /*
 739          * If max batch complete number isn't set or set incorrectly,
 740          * default to the same as iodepth_batch_complete_min
 741          */
 742         if (o->iodepth_batch_complete_min > o->iodepth_batch_complete_max)
 743                 o->iodepth_batch_complete_max = o->iodepth_batch_complete_min;
 744
 745         /*
 746          * There's no need to check for in-flight overlapping IOs if the job
 747          * isn't changing data or the maximum iodepth is guaranteed to be 1
 748          * when we are not in offload mode
 749          */
 750         if (o->serialize_overlap && !(td->flags & TD_F_READ_IOLOG) &&
 751             (!(td_write(td) || td_trim(td)) || o->iodepth == 1) &&
 752             o->io_submit_mode != IO_MODE_OFFLOAD)
 753                 o->serialize_overlap = 0;
 754
 755         if (o->nr_files > td->files_index)
 756                 o->nr_files = td->files_index;
 757
 758         if (o->open_files > o->nr_files || !o->open_files)
 759                 o->open_files = o->nr_files;
 760
 761         if (((o->rate[DDIR_READ] + o->rate[DDIR_WRITE] + o->rate[DDIR_TRIM]) &&
 762             (o->rate_iops[DDIR_READ] + o->rate_iops[DDIR_WRITE] + o->rate_iops[DDIR_TRIM])) ||
 763             ((o->ratemin[DDIR_READ] + o->ratemin[DDIR_WRITE] + o->ratemin[DDIR_TRIM]) &&
 764             (o->rate_iops_min[DDIR_READ] + o->rate_iops_min[DDIR_WRITE] + o->rate_iops_min[DDIR_TRIM]))) {
 765                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 766                 ret |= 1;
 767         }
 768         if ((o->rate[DDIR_READ] && (o->rate[DDIR_READ] < o->ratemin[DDIR_READ])) ||
 769             (o->rate[DDIR_WRITE] && (o->rate[DDIR_WRITE] < o->ratemin[DDIR_WRITE])) ||
 770             (o->rate[DDIR_TRIM] && (o->rate[DDIR_TRIM] < o->ratemin[DDIR_TRIM])) ||
 771             (o->rate_iops[DDIR_READ] && (o->rate_iops[DDIR_READ] < o->rate_iops_min[DDIR_READ])) ||
 772             (o->rate_iops[DDIR_WRITE] && (o->rate_iops[DDIR_WRITE] < o->rate_iops_min[DDIR_WRITE])) ||
 773             (o->rate_iops[DDIR_TRIM] && (o->rate_iops[DDIR_TRIM] < o->rate_iops_min[DDIR_TRIM]))) {
 774                 log_err("fio: minimum rate exceeds rate\n");
 775                 ret |= 1;
 776         }
 777
 778         if (!o->timeout && o->time_based) {
 779                 log_err("fio: time_based requires a runtime/timeout setting\n");
 780                 o->time_based = 0;
 781                 ret |= warnings_fatal;
 782         }
 783
 784         if (o->fill_device && !o->size)
 785                 o->size = -1ULL;
 786
 787         if (o->verify != VERIFY_NONE) {
 788                 if (td_write(td) && o->do_verify && o->numjobs > 1 &&
 789                     (o->filename ||
 790                      !(o->unique_filename &&
 791                        strstr(o->filename_format, "$jobname") &&
 792                        strstr(o->filename_format, "$jobnum") &&
 793                        strstr(o->filename_format, "$filenum")))) {
 794                         log_info("fio: multiple writers may overwrite blocks "
 795                                 "that belong to other jobs. This can cause "
 796                                 "verification failures.\n");
 797                         ret |= warnings_fatal;
 798                 }
 799
 800                 /*
 801                  * Warn if verification is requested but no verification of any
 802                  * kind can be started due to time constraints
 803                  */
 804                 if (td_write(td) && o->do_verify && o->timeout &&
 805                     o->time_based && !td_read(td) && !o->verify_backlog) {
 806                         log_info("fio: verification read phase will never "
 807                                  "start because write phase uses all of "
 808                                  "runtime\n");
 809                         ret |= warnings_fatal;
 810                 }
 811
 812                 if (!fio_option_is_set(o, refill_buffers))
 813                         o->refill_buffers = 1;
 814
 815                 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
 816                     !o->verify_interval)
 817                         o->verify_interval = o->min_bs[DDIR_WRITE];
 818
 819                 /*
 820                  * Verify interval must be smaller or equal to the
 821                  * write size.
 822                  */
 823                 if (o->verify_interval > o->min_bs[DDIR_WRITE])
 824                         o->verify_interval = o->min_bs[DDIR_WRITE];
 825                 else if (td_read(td) && o->verify_interval > o->min_bs[DDIR_READ])
 826                         o->verify_interval = o->min_bs[DDIR_READ];
 827
 828                 /*
 829                  * Verify interval must be a factor of both min and max
 830                  * write size
 831                  */
 832                 if (!o->verify_interval ||
 833                     (o->min_bs[DDIR_WRITE] % o->verify_interval) ||
 834                     (o->max_bs[DDIR_WRITE] % o->verify_interval))
 835                         o->verify_interval = gcd(o->min_bs[DDIR_WRITE],
 836                                                         o->max_bs[DDIR_WRITE]);
 837         }
 838
 839         if (o->pre_read) {
 840                 if (o->invalidate_cache)
 841                         o->invalidate_cache = 0;
 842                 if (td_ioengine_flagged(td, FIO_PIPEIO)) {
 843                         log_info("fio: cannot pre-read files with an IO engine"
 844                                  " that isn't seekable. Pre-read disabled.\n");
 845                         ret |= warnings_fatal;
 846                 }
 847         }
 848
 849         if (o->unit_base == N2S_NONE) {
 850                 if (td_ioengine_flagged(td, FIO_BIT_BASED))
 851                         o->unit_base = N2S_BITPERSEC;
 852                 else
 853                         o->unit_base = N2S_BYTEPERSEC;
 854         }
 855
 856 #ifndef CONFIG_FDATASYNC
 857         if (o->fdatasync_blocks) {
 858                 log_info("fio: this platform does not support fdatasync()"
 859                          " falling back to using fsync().  Use the 'fsync'"
 860                          " option instead of 'fdatasync' to get rid of"
 861                          " this warning\n");
 862                 o->fsync_blocks = o->fdatasync_blocks;
 863                 o->fdatasync_blocks = 0;
 864                 ret |= warnings_fatal;
 865         }
 866 #endif
 867
 868 #ifdef WIN32
 869         /*
 870          * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
 871          * so fail if we're passed those flags
 872          */
 873         if (td_ioengine_flagged(td, FIO_SYNCIO) && (o->odirect || o->sync_io)) {
 874                 log_err("fio: Windows does not support direct or non-buffered io with"
 875                                 " the synchronous ioengines. Use the 'windowsaio' ioengine"
 876                                 " with 'direct=1' and 'iodepth=1' instead.\n");
 877                 ret |= 1;
 878         }
 879 #endif
 880
 881         /*
 882          * For fully compressible data, just zero them at init time.
 883          * It's faster than repeatedly filling it. For non-zero
 884          * compression, we should have refill_buffers set. Set it, unless
 885          * the job file already changed it.
 886          */
 887         if (o->compress_percentage) {
 888                 if (o->compress_percentage == 100) {
 889                         o->zero_buffers = 1;
 890                         o->compress_percentage = 0;
 891                 } else if (!fio_option_is_set(o, refill_buffers)) {
 892                         o->refill_buffers = 1;
 893                         td->flags |= TD_F_REFILL_BUFFERS;
 894                 }
 895         }
 896
 897         /*
 898          * Using a non-uniform random distribution excludes usage of
 899          * a random map
 900          */
 901         if (o->random_distribution != FIO_RAND_DIST_RANDOM)
 902                 o->norandommap = 1;
 903
 904         /*
 905          * If size is set but less than the min block size, complain
 906          */
 907         if (o->size && o->size < td_min_bs(td)) {
 908                 log_err("fio: size too small, must not be less than minimum block size: %llu < %llu\n",
 909                         (unsigned long long) o->size, td_min_bs(td));
 910                 ret |= 1;
 911         }
 912
 913         /*
 914          * O_ATOMIC implies O_DIRECT
 915          */
 916         if (o->oatomic)
 917                 o->odirect = 1;
 918
 919         /*
 920          * If randseed is set, that overrides randrepeat
 921          */
 922         if (fio_option_is_set(o, rand_seed))
 923                 o->rand_repeatable = 0;
 924
 925         if (td_ioengine_flagged(td, FIO_NOEXTEND) && o->file_append) {
 926                 log_err("fio: can't append/extent with IO engine %s\n", td->io_ops->name);
 927                 ret |= 1;
 928         }
 929
 930         if (fio_option_is_set(o, gtod_cpu)) {
 931                 fio_gtod_init();
 932                 fio_gtod_set_cpu(o->gtod_cpu);
 933                 fio_gtod_offload = 1;
 934         }
 935
 936         td->loops = o->loops;
 937         if (!td->loops)
 938                 td->loops = 1;
 939
 940         if (o->block_error_hist && o->nr_files != 1) {
 941                 log_err("fio: block error histogram only available "
 942                         "with a single file per job, but %d files "
 943                         "provided\n", o->nr_files);
 944                 ret |= 1;
 945         }
 946
 947         if (fio_option_is_set(o, clat_percentiles) &&
 948             !fio_option_is_set(o, lat_percentiles)) {
 949                 o->lat_percentiles = !o->clat_percentiles;
 950         } else if (fio_option_is_set(o, lat_percentiles) &&
 951                    !fio_option_is_set(o, clat_percentiles)) {
 952                 o->clat_percentiles = !o->lat_percentiles;
 953         } else if (fio_option_is_set(o, lat_percentiles) &&
 954                    fio_option_is_set(o, clat_percentiles) &&
 955                    o->lat_percentiles && o->clat_percentiles) {
 956                 log_err("fio: lat_percentiles and clat_percentiles are "
 957                         "mutually exclusive\n");
 958                 ret |= 1;
 959         }
 960
 961         if (o->disable_lat)
 962                 o->lat_percentiles = 0;
 963         if (o->disable_clat)
 964                 o->clat_percentiles = 0;
 965
 966         /*
 967          * Fix these up to be nsec internally
 968          */
 969         o->max_latency *= 1000ULL;
 970         o->latency_target *= 1000ULL;
 971         o->latency_window *= 1000ULL;
 972
 973         return ret;
 974 }
 975
 976 static void init_rand_file_service(struct thread_data *td)
 977 {
 978         unsigned long nranges = td->o.nr_files << FIO_FSERVICE_SHIFT;
 979         const unsigned int seed = td->rand_seeds[FIO_RAND_FILE_OFF];
 980
 981         if (td->o.file_service_type == FIO_FSERVICE_ZIPF) {
 982                 zipf_init(&td->next_file_zipf, nranges, td->zipf_theta, seed);
 983                 zipf_disable_hash(&td->next_file_zipf);
 984         } else if (td->o.file_service_type == FIO_FSERVICE_PARETO) {
 985                 pareto_init(&td->next_file_zipf, nranges, td->pareto_h, seed);
 986                 zipf_disable_hash(&td->next_file_zipf);
 987         } else if (td->o.file_service_type == FIO_FSERVICE_GAUSS) {
 988                 gauss_init(&td->next_file_gauss, nranges, td->gauss_dev, seed);
 989                 gauss_disable_hash(&td->next_file_gauss);
 990         }
 991 }
 992
 993 void td_fill_verify_state_seed(struct thread_data *td)
 994 {
 995         bool use64;
 996
 997         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
 998                 use64 = true;
 999         else
1000                 use64 = false;
1001
1002         init_rand_seed(&td->verify_state, td->rand_seeds[FIO_RAND_VER_OFF],
1003                 use64);
1004 }
1005
1006 static void td_fill_rand_seeds_internal(struct thread_data *td, bool use64)
1007 {
1008         unsigned int read_seed = td->rand_seeds[FIO_RAND_BS_OFF];
1009         unsigned int write_seed = td->rand_seeds[FIO_RAND_BS1_OFF];
1010         unsigned int trim_seed = td->rand_seeds[FIO_RAND_BS2_OFF];
1011         int i;
1012
1013         /*
1014          * trimwrite is special in that we need to generate the same
1015          * offsets to get the "write after trim" effect. If we are
1016          * using bssplit to set buffer length distributions, ensure that
1017          * we seed the trim and write generators identically. Ditto for
1018          * verify, read and writes must have the same seed, if we are doing
1019          * read verify.
1020          */
1021         if (td->o.verify != VERIFY_NONE)
1022                 write_seed = read_seed;
1023         if (td_trimwrite(td))
1024                 trim_seed = write_seed;
1025         init_rand_seed(&td->bsrange_state[DDIR_READ], read_seed, use64);
1026         init_rand_seed(&td->bsrange_state[DDIR_WRITE], write_seed, use64);
1027         init_rand_seed(&td->bsrange_state[DDIR_TRIM], trim_seed, use64);
1028
1029         td_fill_verify_state_seed(td);
1030         init_rand_seed(&td->rwmix_state, td->rand_seeds[FIO_RAND_MIX_OFF], false);
1031
1032         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
1033                 init_rand_seed(&td->next_file_state, td->rand_seeds[FIO_RAND_FILE_OFF], use64);
1034         else if (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM)
1035                 init_rand_file_service(td);
1036
1037         init_rand_seed(&td->file_size_state, td->rand_seeds[FIO_RAND_FILE_SIZE_OFF], use64);
1038         init_rand_seed(&td->trim_state, td->rand_seeds[FIO_RAND_TRIM_OFF], use64);
1039         init_rand_seed(&td->delay_state, td->rand_seeds[FIO_RAND_START_DELAY], use64);
1040         init_rand_seed(&td->poisson_state[0], td->rand_seeds[FIO_RAND_POISSON_OFF], 0);
1041         init_rand_seed(&td->poisson_state[1], td->rand_seeds[FIO_RAND_POISSON2_OFF], 0);
1042         init_rand_seed(&td->poisson_state[2], td->rand_seeds[FIO_RAND_POISSON3_OFF], 0);
1043         init_rand_seed(&td->dedupe_state, td->rand_seeds[FIO_DEDUPE_OFF], false);
1044         init_rand_seed(&td->zone_state, td->rand_seeds[FIO_RAND_ZONE_OFF], false);
1045         init_rand_seed(&td->prio_state, td->rand_seeds[FIO_RAND_PRIO_CMDS], false);
1046
1047         if (!td_random(td))
1048                 return;
1049
1050         if (td->o.rand_repeatable)
1051                 td->rand_seeds[FIO_RAND_BLOCK_OFF] = FIO_RANDSEED * td->thread_number;
1052
1053         init_rand_seed(&td->random_state, td->rand_seeds[FIO_RAND_BLOCK_OFF], use64);
1054
1055         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1056                 struct frand_state *s = &td->seq_rand_state[i];
1057
1058                 init_rand_seed(s, td->rand_seeds[FIO_RAND_SEQ_RAND_READ_OFF], false);
1059         }
1060 }
1061
1062 void td_fill_rand_seeds(struct thread_data *td)
1063 {
1064         bool use64;
1065
1066         if (td->o.allrand_repeatable) {
1067                 unsigned int i;
1068
1069                 for (i = 0; i < FIO_RAND_NR_OFFS; i++)
1070                         td->rand_seeds[i] = FIO_RANDSEED * td->thread_number
1071                                 + i;
1072         }
1073
1074         if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64)
1075                 use64 = true;
1076         else
1077                 use64 = false;
1078
1079         td_fill_rand_seeds_internal(td, use64);
1080
1081         init_rand_seed(&td->buf_state, td->rand_seeds[FIO_RAND_BUF_OFF], use64);
1082         frand_copy(&td->buf_state_prev, &td->buf_state);
1083 }
1084
1085 /*
1086  * Initializes the ioengine configured for a job, if it has not been done so
1087  * already.
1088  */
1089 int ioengine_load(struct thread_data *td)
1090 {
1091         if (!td->o.ioengine) {
1092                 log_err("fio: internal fault, no IO engine specified\n");
1093                 return 1;
1094         }
1095
1096         if (td->io_ops) {
1097                 struct ioengine_ops *ops;
1098                 void *dlhandle;
1099
1100                 /* An engine is loaded, but the requested ioengine
1101                  * may have changed.
1102                  */
1103                 if (!strcmp(td->io_ops->name, td->o.ioengine)) {
1104                         /* The right engine is already loaded */
1105                         return 0;
1106                 }
1107
1108                 /*
1109                  * Name of file and engine may be different, load ops
1110                  * for this name and see if they match. If they do, then
1111                  * the engine is unchanged.
1112                  */
1113                 dlhandle = td->io_ops_dlhandle;
1114                 ops = load_ioengine(td);
1115                 if (ops == td->io_ops && dlhandle == td->io_ops_dlhandle) {
1116                         if (dlhandle)
1117                                 dlclose(dlhandle);
1118                         return 0;
1119                 }
1120
1121                 if (dlhandle && dlhandle != td->io_ops_dlhandle)
1122                         dlclose(dlhandle);
1123
1124                 /* Unload the old engine. */
1125                 free_ioengine(td);
1126         }
1127
1128         td->io_ops = load_ioengine(td);
1129         if (!td->io_ops) {
1130                 log_err("fio: failed to load engine\n");
1131                 return 1;
1132         }
1133
1134         if (td->io_ops->option_struct_size && td->io_ops->options) {
1135                 /*
1136                  * In cases where td->eo is set, clone it for a child thread.
1137                  * This requires that the parent thread has the same ioengine,
1138                  * but that requirement must be enforced by the code which
1139                  * cloned the thread.
1140                  */
1141                 void *origeo = td->eo;
1142                 /*
1143                  * Otherwise use the default thread options.
1144                  */
1145                 if (!origeo && td != &def_thread && def_thread.eo &&
1146                     def_thread.io_ops->options == td->io_ops->options)
1147                         origeo = def_thread.eo;
1148
1149                 options_init(td->io_ops->options);
1150                 td->eo = malloc(td->io_ops->option_struct_size);
1151                 /*
1152                  * Use the default thread as an option template if this uses the
1153                  * same options structure and there are non-default options
1154                  * used.
1155                  */
1156                 if (origeo) {
1157                         memcpy(td->eo, origeo, td->io_ops->option_struct_size);
1158                         options_mem_dupe(td->io_ops->options, td->eo);
1159                 } else {
1160                         memset(td->eo, 0, td->io_ops->option_struct_size);
1161                         fill_default_options(td->eo, td->io_ops->options);
1162                 }
1163                 *(struct thread_data **)td->eo = td;
1164         }
1165
1166         if (td->o.odirect)
1167                 td->io_ops->flags |= FIO_RAWIO;
1168
1169         td_set_ioengine_flags(td);
1170         return 0;
1171 }
1172
1173 static void init_flags(struct thread_data *td)
1174 {
1175         struct thread_options *o = &td->o;
1176         int i;
1177
1178         if (o->verify_backlog)
1179                 td->flags |= TD_F_VER_BACKLOG;
1180         if (o->trim_backlog)
1181                 td->flags |= TD_F_TRIM_BACKLOG;
1182         if (o->read_iolog_file)
1183                 td->flags |= TD_F_READ_IOLOG;
1184         if (o->refill_buffers)
1185                 td->flags |= TD_F_REFILL_BUFFERS;
1186         /*
1187          * Always scramble buffers if asked to
1188          */
1189         if (o->scramble_buffers && fio_option_is_set(o, scramble_buffers))
1190                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1191         /*
1192          * But also scramble buffers, unless we were explicitly asked
1193          * to zero them.
1194          */
1195         if (o->scramble_buffers && !(o->zero_buffers &&
1196             fio_option_is_set(o, zero_buffers)))
1197                 td->flags |= TD_F_SCRAMBLE_BUFFERS;
1198         if (o->verify != VERIFY_NONE)
1199                 td->flags |= TD_F_DO_VERIFY;
1200
1201         if (o->verify_async || o->io_submit_mode == IO_MODE_OFFLOAD)
1202                 td->flags |= TD_F_NEED_LOCK;
1203
1204         if (o->mem_type == MEM_CUDA_MALLOC)
1205                 td->flags &= ~TD_F_SCRAMBLE_BUFFERS;
1206
1207         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1208                 if (option_check_rate(td, i)) {
1209                         td->flags |= TD_F_CHECK_RATE;
1210                         break;
1211                 }
1212         }
1213 }
1214
1215 static int setup_random_seeds(struct thread_data *td)
1216 {
1217         uint64_t seed;
1218         unsigned int i;
1219
1220         if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed)) {
1221                 int ret = init_random_seeds(td->rand_seeds, sizeof(td->rand_seeds));
1222                 if (!ret)
1223                         td_fill_rand_seeds(td);
1224                 return ret;
1225         }
1226
1227         seed = td->o.rand_seed;
1228         for (i = 0; i < 4; i++)
1229                 seed *= 0x9e370001UL;
1230
1231         for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
1232                 td->rand_seeds[i] = seed * td->thread_number + i;
1233                 seed *= 0x9e370001UL;
1234         }
1235
1236         td_fill_rand_seeds(td);
1237         return 0;
1238 }
1239
1240 enum {
1241         FPRE_NONE = 0,
1242         FPRE_JOBNAME,
1243         FPRE_JOBNUM,
1244         FPRE_FILENUM
1245 };
1246
1247 static struct fpre_keyword {
1248         const char *keyword;
1249         size_t strlen;
1250         int key;
1251 } fpre_keywords[] = {
1252         { .keyword = "$jobname",        .key = FPRE_JOBNAME, },
1253         { .keyword = "$jobnum",         .key = FPRE_JOBNUM, },
1254         { .keyword = "$filenum",        .key = FPRE_FILENUM, },
1255         { .keyword = NULL, },
1256         };
1257
1258 static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
1259                            const char *jobname, int jobnum, int filenum)
1260 {
1261         struct fpre_keyword *f;
1262         char copy[PATH_MAX];
1263         size_t dst_left = PATH_MAX - 1;
1264
1265         if (!o->filename_format || !strlen(o->filename_format)) {
1266                 sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
1267                 return buf;
1268         }
1269
1270         for (f = &fpre_keywords[0]; f->keyword; f++)
1271                 f->strlen = strlen(f->keyword);
1272
1273         snprintf(buf, buf_size, "%s", o->filename_format);
1274
1275         memset(copy, 0, sizeof(copy));
1276         for (f = &fpre_keywords[0]; f->keyword; f++) {
1277                 do {
1278                         size_t pre_len, post_start = 0;
1279                         char *str, *dst = copy;
1280
1281                         str = strcasestr(buf, f->keyword);
1282                         if (!str)
1283                                 break;
1284
1285                         pre_len = str - buf;
1286                         if (strlen(str) != f->strlen)
1287                                 post_start = pre_len + f->strlen;
1288
1289                         if (pre_len) {
1290                                 strncpy(dst, buf, pre_len);
1291                                 dst += pre_len;
1292                                 dst_left -= pre_len;
1293                         }
1294
1295                         switch (f->key) {
1296                         case FPRE_JOBNAME: {
1297                                 int ret;
1298
1299                                 ret = snprintf(dst, dst_left, "%s", jobname);
1300                                 if (ret < 0)
1301                                         break;
1302                                 else if (ret > dst_left) {
1303                                         log_err("fio: truncated filename\n");
1304                                         dst += dst_left;
1305                                         dst_left = 0;
1306                                 } else {
1307                                         dst += ret;
1308                                         dst_left -= ret;
1309                                 }
1310                                 break;
1311                                 }
1312                         case FPRE_JOBNUM: {
1313                                 int ret;
1314
1315                                 ret = snprintf(dst, dst_left, "%d", jobnum);
1316                                 if (ret < 0)
1317                                         break;
1318                                 else if (ret > dst_left) {
1319                                         log_err("fio: truncated filename\n");
1320                                         dst += dst_left;
1321                                         dst_left = 0;
1322                                 } else {
1323                                         dst += ret;
1324                                         dst_left -= ret;
1325                                 }
1326                                 break;
1327                                 }
1328                         case FPRE_FILENUM: {
1329                                 int ret;
1330
1331                                 ret = snprintf(dst, dst_left, "%d", filenum);
1332                                 if (ret < 0)
1333                                         break;
1334                                 else if (ret > dst_left) {
1335                                         log_err("fio: truncated filename\n");
1336                                         dst += dst_left;
1337                                         dst_left = 0;
1338                                 } else {
1339                                         dst += ret;
1340                                         dst_left -= ret;
1341                                 }
1342                                 break;
1343                                 }
1344                         default:
1345                                 assert(0);
1346                                 break;
1347                         }
1348
1349                         if (post_start)
1350                                 strncpy(dst, buf + post_start, dst_left);
1351
1352                         snprintf(buf, buf_size, "%s", copy);
1353                 } while (1);
1354         }
1355
1356         return buf;
1357 }
1358
1359 bool parse_dryrun(void)
1360 {
1361         return dump_cmdline || parse_only;
1362 }
1363
1364 static void gen_log_name(char *name, size_t size, const char *logtype,
1365                          const char *logname, unsigned int num,
1366                          const char *suf, int per_job)
1367 {
1368         if (per_job)
1369                 snprintf(name, size, "%s_%s.%d.%s", logname, logtype, num, suf);
1370         else
1371                 snprintf(name, size, "%s_%s.%s", logname, logtype, suf);
1372 }
1373
1374 static int check_waitees(char *waitee)
1375 {
1376         struct thread_data *td;
1377         int i, ret = 0;
1378
1379         for_each_td(td, i) {
1380                 if (td->subjob_number)
1381                         continue;
1382
1383                 ret += !strcmp(td->o.name, waitee);
1384         }
1385
1386         return ret;
1387 }
1388
1389 static bool wait_for_ok(const char *jobname, struct thread_options *o)
1390 {
1391         int nw;
1392
1393         if (!o->wait_for)
1394                 return true;
1395
1396         if (!strcmp(jobname, o->wait_for)) {
1397                 log_err("%s: a job cannot wait for itself (wait_for=%s).\n",
1398                                 jobname, o->wait_for);
1399                 return false;
1400         }
1401
1402         if (!(nw = check_waitees(o->wait_for))) {
1403                 log_err("%s: waitee job %s unknown.\n", jobname, o->wait_for);
1404                 return false;
1405         }
1406
1407         if (nw > 1) {
1408                 log_err("%s: multiple waitees %s found,\n"
1409                         "please avoid duplicates when using wait_for option.\n",
1410                                 jobname, o->wait_for);
1411                 return false;
1412         }
1413
1414         return true;
1415 }
1416
1417 /*
1418  * Treat an empty log file name the same as a one not given
1419  */
1420 static const char *make_log_name(const char *logname, const char *jobname)
1421 {
1422         if (logname && strcmp(logname, ""))
1423                 return logname;
1424
1425         return jobname;
1426 }
1427
1428 /*
1429  * Adds a job to the list of things todo. Sanitizes the various options
1430  * to make sure we don't have conflicts, and initializes various
1431  * members of td.
1432  */
1433 static int add_job(struct thread_data *td, const char *jobname, int job_add_num,
1434                    int recursed, int client_type)
1435 {
1436         unsigned int i;
1437         char fname[PATH_MAX + 1];
1438         int numjobs, file_alloced;
1439         struct thread_options *o = &td->o;
1440         char logname[PATH_MAX + 32];
1441
1442         /*
1443          * the def_thread is just for options, it's not a real job
1444          */
1445         if (td == &def_thread)
1446                 return 0;
1447
1448         init_flags(td);
1449
1450         /*
1451          * if we are just dumping the output command line, don't add the job
1452          */
1453         if (parse_dryrun()) {
1454                 put_job(td);
1455                 return 0;
1456         }
1457
1458         td->client_type = client_type;
1459
1460         if (profile_td_init(td))
1461                 goto err;
1462
1463         if (ioengine_load(td))
1464                 goto err;
1465
1466         file_alloced = 0;
1467         if (!o->filename && !td->files_index && !o->read_iolog_file) {
1468                 file_alloced = 1;
1469
1470                 if (o->nr_files == 1 && exists_and_not_regfile(jobname))
1471                         add_file(td, jobname, job_add_num, 0);
1472                 else {
1473                         for (i = 0; i < o->nr_files; i++)
1474                                 add_file(td, make_filename(fname, sizeof(fname), o, jobname, job_add_num, i), job_add_num, 0);
1475                 }
1476         }
1477
1478         if (setup_random_seeds(td)) {
1479                 td_verror(td, errno, "setup_random_seeds");
1480                 goto err;
1481         }
1482
1483         if (fixup_options(td))
1484                 goto err;
1485
1486         /*
1487          * Belongs to fixup_options, but o->name is not necessarily set as yet
1488          */
1489         if (!wait_for_ok(jobname, o))
1490                 goto err;
1491
1492         flow_init_job(td);
1493
1494         /*
1495          * IO engines only need this for option callbacks, and the address may
1496          * change in subprocesses.
1497          */
1498         if (td->eo)
1499                 *(struct thread_data **)td->eo = NULL;
1500
1501         if (td_ioengine_flagged(td, FIO_DISKLESSIO)) {
1502                 struct fio_file *f;
1503
1504                 for_each_file(td, f, i)
1505                         f->real_file_size = -1ULL;
1506         }
1507
1508         td->sem = fio_sem_init(FIO_SEM_LOCKED);
1509
1510         td->ts.clat_percentiles = o->clat_percentiles;
1511         td->ts.lat_percentiles = o->lat_percentiles;
1512         td->ts.percentile_precision = o->percentile_precision;
1513         memcpy(td->ts.percentile_list, o->percentile_list, sizeof(o->percentile_list));
1514         td->ts.sig_figs = o->sig_figs;
1515
1516         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1517                 td->ts.clat_stat[i].min_val = ULONG_MAX;
1518                 td->ts.slat_stat[i].min_val = ULONG_MAX;
1519                 td->ts.lat_stat[i].min_val = ULONG_MAX;
1520                 td->ts.bw_stat[i].min_val = ULONG_MAX;
1521                 td->ts.iops_stat[i].min_val = ULONG_MAX;
1522                 td->ts.clat_high_prio_stat[i].min_val = ULONG_MAX;
1523                 td->ts.clat_prio_stat[i].min_val = ULONG_MAX;
1524         }
1525         td->ts.sync_stat.min_val = ULONG_MAX;
1526         td->ddir_seq_nr = o->ddir_seq_nr;
1527
1528         if ((o->stonewall || o->new_group) && prev_group_jobs) {
1529                 prev_group_jobs = 0;
1530                 groupid++;
1531                 if (groupid == INT_MAX) {
1532                         log_err("fio: too many groups defined\n");
1533                         goto err;
1534                 }
1535         }
1536
1537         td->groupid = groupid;
1538         prev_group_jobs++;
1539
1540         if (setup_rate(td))
1541                 goto err;
1542
1543         if (o->write_lat_log) {
1544                 struct log_params p = {
1545                         .td = td,
1546                         .avg_msec = o->log_avg_msec,
1547                         .hist_msec = o->log_hist_msec,
1548                         .hist_coarseness = o->log_hist_coarseness,
1549                         .log_type = IO_LOG_TYPE_LAT,
1550                         .log_offset = o->log_offset,
1551                         .log_gz = o->log_gz,
1552                         .log_gz_store = o->log_gz_store,
1553                 };
1554                 const char *pre = make_log_name(o->lat_log_file, o->name);
1555                 const char *suf;
1556
1557                 if (p.log_gz_store)
1558                         suf = "log.fz";
1559                 else
1560                         suf = "log";
1561
1562                 gen_log_name(logname, sizeof(logname), "lat", pre,
1563                                 td->thread_number, suf, o->per_job_logs);
1564                 setup_log(&td->lat_log, &p, logname);
1565
1566                 gen_log_name(logname, sizeof(logname), "slat", pre,
1567                                 td->thread_number, suf, o->per_job_logs);
1568                 setup_log(&td->slat_log, &p, logname);
1569
1570                 gen_log_name(logname, sizeof(logname), "clat", pre,
1571                                 td->thread_number, suf, o->per_job_logs);
1572                 setup_log(&td->clat_log, &p, logname);
1573
1574         }
1575
1576         if (o->write_hist_log) {
1577                 struct log_params p = {
1578                         .td = td,
1579                         .avg_msec = o->log_avg_msec,
1580                         .hist_msec = o->log_hist_msec,
1581                         .hist_coarseness = o->log_hist_coarseness,
1582                         .log_type = IO_LOG_TYPE_HIST,
1583                         .log_offset = o->log_offset,
1584                         .log_gz = o->log_gz,
1585                         .log_gz_store = o->log_gz_store,
1586                 };
1587                 const char *pre = make_log_name(o->hist_log_file, o->name);
1588                 const char *suf;
1589
1590 #ifndef CONFIG_ZLIB
1591                 if (td->client_type) {
1592                         log_err("fio: --write_hist_log requires zlib in client/server mode\n");
1593                         goto err;
1594                 }
1595 #endif
1596
1597                 if (p.log_gz_store)
1598                         suf = "log.fz";
1599                 else
1600                         suf = "log";
1601
1602                 gen_log_name(logname, sizeof(logname), "clat_hist", pre,
1603                                 td->thread_number, suf, o->per_job_logs);
1604                 setup_log(&td->clat_hist_log, &p, logname);
1605         }
1606
1607         if (o->write_bw_log) {
1608                 struct log_params p = {
1609                         .td = td,
1610                         .avg_msec = o->log_avg_msec,
1611                         .hist_msec = o->log_hist_msec,
1612                         .hist_coarseness = o->log_hist_coarseness,
1613                         .log_type = IO_LOG_TYPE_BW,
1614                         .log_offset = o->log_offset,
1615                         .log_gz = o->log_gz,
1616                         .log_gz_store = o->log_gz_store,
1617                 };
1618                 const char *pre = make_log_name(o->bw_log_file, o->name);
1619                 const char *suf;
1620
1621                 if (fio_option_is_set(o, bw_avg_time))
1622                         p.avg_msec = min(o->log_avg_msec, o->bw_avg_time);
1623                 else
1624                         o->bw_avg_time = p.avg_msec;
1625
1626                 p.hist_msec = o->log_hist_msec;
1627                 p.hist_coarseness = o->log_hist_coarseness;
1628
1629                 if (p.log_gz_store)
1630                         suf = "log.fz";
1631                 else
1632                         suf = "log";
1633
1634                 gen_log_name(logname, sizeof(logname), "bw", pre,
1635                                 td->thread_number, suf, o->per_job_logs);
1636                 setup_log(&td->bw_log, &p, logname);
1637         }
1638         if (o->write_iops_log) {
1639                 struct log_params p = {
1640                         .td = td,
1641                         .avg_msec = o->log_avg_msec,
1642                         .hist_msec = o->log_hist_msec,
1643                         .hist_coarseness = o->log_hist_coarseness,
1644                         .log_type = IO_LOG_TYPE_IOPS,
1645                         .log_offset = o->log_offset,
1646                         .log_gz = o->log_gz,
1647                         .log_gz_store = o->log_gz_store,
1648                 };
1649                 const char *pre = make_log_name(o->iops_log_file, o->name);
1650                 const char *suf;
1651
1652                 if (fio_option_is_set(o, iops_avg_time))
1653                         p.avg_msec = min(o->log_avg_msec, o->iops_avg_time);
1654                 else
1655                         o->iops_avg_time = p.avg_msec;
1656
1657                 p.hist_msec = o->log_hist_msec;
1658                 p.hist_coarseness = o->log_hist_coarseness;
1659
1660                 if (p.log_gz_store)
1661                         suf = "log.fz";
1662                 else
1663                         suf = "log";
1664
1665                 gen_log_name(logname, sizeof(logname), "iops", pre,
1666                                 td->thread_number, suf, o->per_job_logs);
1667                 setup_log(&td->iops_log, &p, logname);
1668         }
1669
1670         if (!o->name)
1671                 o->name = strdup(jobname);
1672
1673         if (output_format & FIO_OUTPUT_NORMAL) {
1674                 if (!job_add_num) {
1675                         if (is_backend && !recursed)
1676                                 fio_server_send_add_job(td);
1677
1678                         if (!td_ioengine_flagged(td, FIO_NOIO)) {
1679                                 char *c1, *c2, *c3, *c4;
1680                                 char *c5 = NULL, *c6 = NULL;
1681                                 int i2p = is_power_of_2(o->kb_base);
1682                                 struct buf_output out;
1683
1684                                 c1 = num2str(o->min_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1685                                 c2 = num2str(o->max_bs[DDIR_READ], o->sig_figs, 1, i2p, N2S_BYTE);
1686                                 c3 = num2str(o->min_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1687                                 c4 = num2str(o->max_bs[DDIR_WRITE], o->sig_figs, 1, i2p, N2S_BYTE);
1688
1689                                 if (!o->bs_is_seq_rand) {
1690                                         c5 = num2str(o->min_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1691                                         c6 = num2str(o->max_bs[DDIR_TRIM], o->sig_figs, 1, i2p, N2S_BYTE);
1692                                 }
1693
1694                                 buf_output_init(&out);
1695                                 __log_buf(&out, "%s: (g=%d): rw=%s, ", td->o.name,
1696                                                         td->groupid,
1697                                                         ddir_str(o->td_ddir));
1698
1699                                 if (o->bs_is_seq_rand)
1700                                         __log_buf(&out, "bs=(R) %s-%s, (W) %s-%s, bs_is_seq_rand, ",
1701                                                         c1, c2, c3, c4);
1702                                 else
1703                                         __log_buf(&out, "bs=(R) %s-%s, (W) %s-%s, (T) %s-%s, ",
1704                                                         c1, c2, c3, c4, c5, c6);
1705
1706                                 __log_buf(&out, "ioengine=%s, iodepth=%u\n",
1707                                                 td->io_ops->name, o->iodepth);
1708                                 log_info_buf(out.buf, out.buflen);
1709                                 buf_output_free(&out);
1710
1711                                 free(c1);
1712                                 free(c2);
1713                                 free(c3);
1714                                 free(c4);
1715                                 free(c5);
1716                                 free(c6);
1717                         }
1718                 } else if (job_add_num == 1)
1719                         log_info("...\n");
1720         }
1721
1722         if (td_steadystate_init(td))
1723                 goto err;
1724
1725         if (o->merge_blktrace_file && !merge_blktrace_iologs(td))
1726                 goto err;
1727
1728         if (merge_blktrace_only) {
1729                 put_job(td);
1730                 return 0;
1731         }
1732
1733         /*
1734          * recurse add identical jobs, clear numjobs and stonewall options
1735          * as they don't apply to sub-jobs
1736          */
1737         numjobs = o->numjobs;
1738         while (--numjobs) {
1739                 struct thread_data *td_new = get_new_job(false, td, true, jobname);
1740
1741                 if (!td_new)
1742                         goto err;
1743
1744                 td_new->o.numjobs = 1;
1745                 td_new->o.stonewall = 0;
1746                 td_new->o.new_group = 0;
1747                 td_new->subjob_number = numjobs;
1748                 td_new->o.ss_dur = o->ss_dur * 1000000l;
1749                 td_new->o.ss_limit = o->ss_limit;
1750
1751                 if (file_alloced) {
1752                         if (td_new->files) {
1753                                 struct fio_file *f;
1754                                 for_each_file(td_new, f, i) {
1755                                         if (f->file_name)
1756                                                 sfree(f->file_name);
1757                                         sfree(f);
1758                                 }
1759                                 free(td_new->files);
1760                                 td_new->files = NULL;
1761                         }
1762                         td_new->files_index = 0;
1763                         td_new->files_size = 0;
1764                         if (td_new->o.filename) {
1765                                 free(td_new->o.filename);
1766                                 td_new->o.filename = NULL;
1767                         }
1768                 }
1769
1770                 if (add_job(td_new, jobname, numjobs, 1, client_type))
1771                         goto err;
1772         }
1773
1774         return 0;
1775 err:
1776         put_job(td);
1777         return -1;
1778 }
1779
1780 /*
1781  * Parse as if 'o' was a command line
1782  */
1783 void add_job_opts(const char **o, int client_type)
1784 {
1785         struct thread_data *td, *td_parent;
1786         int i, in_global = 1;
1787         char jobname[32];
1788
1789         i = 0;
1790         td_parent = td = NULL;
1791         while (o[i]) {
1792                 if (!strncmp(o[i], "name", 4)) {
1793                         in_global = 0;
1794                         if (td)
1795                                 add_job(td, jobname, 0, 0, client_type);
1796                         td = NULL;
1797                         sprintf(jobname, "%s", o[i] + 5);
1798                 }
1799                 if (in_global && !td_parent)
1800                         td_parent = get_new_job(true, &def_thread, false, jobname);
1801                 else if (!in_global && !td) {
1802                         if (!td_parent)
1803                                 td_parent = &def_thread;
1804                         td = get_new_job(false, td_parent, false, jobname);
1805                 }
1806                 if (in_global)
1807                         fio_options_parse(td_parent, (char **) &o[i], 1);
1808                 else
1809                         fio_options_parse(td, (char **) &o[i], 1);
1810                 i++;
1811         }
1812
1813         if (td)
1814                 add_job(td, jobname, 0, 0, client_type);
1815 }
1816
1817 static int skip_this_section(const char *name)
1818 {
1819         int i;
1820
1821         if (!nr_job_sections)
1822                 return 0;
1823         if (!strncmp(name, "global", 6))
1824                 return 0;
1825
1826         for (i = 0; i < nr_job_sections; i++)
1827                 if (!strcmp(job_sections[i], name))
1828                         return 0;
1829
1830         return 1;
1831 }
1832
1833 static int is_empty_or_comment(char *line)
1834 {
1835         unsigned int i;
1836
1837         for (i = 0; i < strlen(line); i++) {
1838                 if (line[i] == ';')
1839                         return 1;
1840                 if (line[i] == '#')
1841                         return 1;
1842                 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
1843                         return 0;
1844         }
1845
1846         return 1;
1847 }
1848
1849 /*
1850  * This is our [ini] type file parser.
1851  */
1852 static int __parse_jobs_ini(struct thread_data *td,
1853                 char *file, int is_buf, int stonewall_flag, int type,
1854                 int nested, char *name, char ***popts, int *aopts, int *nopts)
1855 {
1856         bool global = false;
1857         char *string;
1858         FILE *f;
1859         char *p;
1860         int ret = 0, stonewall;
1861         int first_sect = 1;
1862         int skip_fgets = 0;
1863         int inside_skip = 0;
1864         char **opts;
1865         int i, alloc_opts, num_opts;
1866
1867         dprint(FD_PARSE, "Parsing ini file %s\n", file);
1868         assert(td || !nested);
1869
1870         if (is_buf)
1871                 f = NULL;
1872         else {
1873                 if (!strcmp(file, "-"))
1874                         f = stdin;
1875                 else
1876                         f = fopen(file, "r");
1877
1878                 if (!f) {
1879                         int __err = errno;
1880
1881                         log_err("fio: unable to open '%s' job file\n", file);
1882                         if (td)
1883                                 td_verror(td, __err, "job file open");
1884                         return 1;
1885                 }
1886         }
1887
1888         string = malloc(OPT_LEN_MAX);
1889
1890         /*
1891          * it's really 256 + small bit, 280 should suffice
1892          */
1893         if (!nested) {
1894                 name = malloc(280);
1895                 memset(name, 0, 280);
1896         }
1897
1898         opts = NULL;
1899         if (nested && popts) {
1900                 opts = *popts;
1901                 alloc_opts = *aopts;
1902                 num_opts = *nopts;
1903         }
1904
1905         if (!opts) {
1906                 alloc_opts = 8;
1907                 opts = malloc(sizeof(char *) * alloc_opts);
1908                 num_opts = 0;
1909         }
1910
1911         stonewall = stonewall_flag;
1912         do {
1913                 /*
1914                  * if skip_fgets is set, we already have loaded a line we
1915                  * haven't handled.
1916                  */
1917                 if (!skip_fgets) {
1918                         if (is_buf)
1919                                 p = strsep(&file, "\n");
1920                         else
1921                                 p = fgets(string, OPT_LEN_MAX, f);
1922                         if (!p)
1923                                 break;
1924                 }
1925
1926                 skip_fgets = 0;
1927                 strip_blank_front(&p);
1928                 strip_blank_end(p);
1929
1930                 dprint(FD_PARSE, "%s\n", p);
1931                 if (is_empty_or_comment(p))
1932                         continue;
1933
1934                 if (!nested) {
1935                         if (sscanf(p, "[%255[^\n]]", name) != 1) {
1936                                 if (inside_skip)
1937                                         continue;
1938
1939                                 log_err("fio: option <%s> outside of "
1940                                         "[] job section\n", p);
1941                                 ret = 1;
1942                                 break;
1943                         }
1944
1945                         name[strlen(name) - 1] = '\0';
1946
1947                         if (skip_this_section(name)) {
1948                                 inside_skip = 1;
1949                                 continue;
1950                         } else
1951                                 inside_skip = 0;
1952
1953                         dprint(FD_PARSE, "Parsing section [%s]\n", name);
1954
1955                         global = !strncmp(name, "global", 6);
1956
1957                         if (dump_cmdline) {
1958                                 if (first_sect)
1959                                         log_info("fio ");
1960                                 if (!global)
1961                                         log_info("--name=%s ", name);
1962                                 first_sect = 0;
1963                         }
1964
1965                         td = get_new_job(global, &def_thread, false, name);
1966                         if (!td) {
1967                                 ret = 1;
1968                                 break;
1969                         }
1970
1971                         /*
1972                          * Separate multiple job files by a stonewall
1973                          */
1974                         if (!global && stonewall) {
1975                                 td->o.stonewall = stonewall;
1976                                 stonewall = 0;
1977                         }
1978
1979                         num_opts = 0;
1980                         memset(opts, 0, alloc_opts * sizeof(char *));
1981                 }
1982                 else
1983                         skip_fgets = 1;
1984
1985                 while (1) {
1986                         if (!skip_fgets) {
1987                                 if (is_buf)
1988                                         p = strsep(&file, "\n");
1989                                 else
1990                                         p = fgets(string, OPT_LEN_MAX, f);
1991                                 if (!p)
1992                                         break;
1993                                 dprint(FD_PARSE, "%s", p);
1994                         }
1995                         else
1996                                 skip_fgets = 0;
1997
1998                         if (is_empty_or_comment(p))
1999                                 continue;
2000
2001                         strip_blank_front(&p);
2002
2003                         /*
2004                          * new section, break out and make sure we don't
2005                          * fgets() a new line at the top.
2006                          */
2007                         if (p[0] == '[') {
2008                                 if (nested) {
2009                                         log_err("No new sections in included files\n");
2010                                         ret = 1;
2011                                         goto out;
2012                                 }
2013
2014                                 skip_fgets = 1;
2015                                 break;
2016                         }
2017
2018                         strip_blank_end(p);
2019
2020                         if (!strncmp(p, "include", strlen("include"))) {
2021                                 char *filename = p + strlen("include") + 1,
2022                                         *ts, *full_fn = NULL;
2023
2024                                 /*
2025                                  * Allow for the include filename
2026                                  * specification to be relative.
2027                                  */
2028                                 if (access(filename, F_OK) &&
2029                                     (ts = strrchr(file, '/'))) {
2030                                         if (asprintf(&full_fn, "%.*s%s",
2031                                                  (int)(ts - file + 1), file,
2032                                                  filename) < 0) {
2033                                                 ret = ENOMEM;
2034                                                 break;
2035                                         }
2036                                         filename = full_fn;
2037                                 }
2038
2039                                 ret = __parse_jobs_ini(td, filename, is_buf,
2040                                                        stonewall_flag, type, 1,
2041                                                        name, &opts,
2042                                                        &alloc_opts, &num_opts);
2043
2044                                 if (ret) {
2045                                         log_err("Error %d while parsing "
2046                                                 "include file %s\n",
2047                                                 ret, filename);
2048                                 }
2049
2050                                 if (full_fn)
2051                                         free(full_fn);
2052
2053                                 if (ret)
2054                                         break;
2055
2056                                 continue;
2057                         }
2058
2059                         if (num_opts == alloc_opts) {
2060                                 alloc_opts <<= 1;
2061                                 opts = realloc(opts,
2062                                                 alloc_opts * sizeof(char *));
2063                         }
2064
2065                         opts[num_opts] = strdup(p);
2066                         num_opts++;
2067                 }
2068
2069                 if (nested) {
2070                         *popts = opts;
2071                         *aopts = alloc_opts;
2072                         *nopts = num_opts;
2073                         goto out;
2074                 }
2075
2076                 ret = fio_options_parse(td, opts, num_opts);
2077                 if (!ret) {
2078                         if (dump_cmdline)
2079                                 dump_opt_list(td);
2080
2081                         ret = add_job(td, name, 0, 0, type);
2082                 } else {
2083                         log_err("fio: job %s dropped\n", name);
2084                         put_job(td);
2085                 }
2086
2087                 for (i = 0; i < num_opts; i++)
2088                         free(opts[i]);
2089                 num_opts = 0;
2090         } while (!ret);
2091
2092         if (dump_cmdline)
2093                 log_info("\n");
2094
2095         i = 0;
2096         while (i < nr_job_sections) {
2097                 free(job_sections[i]);
2098                 i++;
2099         }
2100
2101         free(opts);
2102 out:
2103         free(string);
2104         if (!nested)
2105                 free(name);
2106         if (!is_buf && f != stdin)
2107                 fclose(f);
2108         return ret;
2109 }
2110
2111 int parse_jobs_ini(char *file, int is_buf, int stonewall_flag, int type)
2112 {
2113         return __parse_jobs_ini(NULL, file, is_buf, stonewall_flag, type,
2114                         0, NULL, NULL, NULL, NULL);
2115 }
2116
2117 static int fill_def_thread(void)
2118 {
2119         memset(&def_thread, 0, sizeof(def_thread));
2120         INIT_FLIST_HEAD(&def_thread.opt_list);
2121
2122         fio_getaffinity(getpid(), &def_thread.o.cpumask);
2123         def_thread.o.error_dump = 1;
2124
2125         /*
2126          * fill default options
2127          */
2128         fio_fill_default_options(&def_thread);
2129         return 0;
2130 }
2131
2132 static void show_debug_categories(void)
2133 {
2134 #ifdef FIO_INC_DEBUG
2135         const struct debug_level *dl = &debug_levels[0];
2136         int curlen, first = 1;
2137
2138         curlen = 0;
2139         while (dl->name) {
2140                 int has_next = (dl + 1)->name != NULL;
2141
2142                 if (first || curlen + strlen(dl->name) >= 80) {
2143                         if (!first) {
2144                                 printf("\n");
2145                                 curlen = 0;
2146                         }
2147                         curlen += printf("\t\t\t%s", dl->name);
2148                         curlen += 3 * (8 - 1);
2149                         if (has_next)
2150                                 curlen += printf(",");
2151                 } else {
2152                         curlen += printf("%s", dl->name);
2153                         if (has_next)
2154                                 curlen += printf(",");
2155                 }
2156                 dl++;
2157                 first = 0;
2158         }
2159         printf("\n");
2160 #endif
2161 }
2162
2163 /*
2164  * Following options aren't printed by usage().
2165  * --append-terse - Equivalent to --output-format=terse, see f6a7df53.
2166  * --latency-log - Deprecated option.
2167  */
2168 static void usage(const char *name)
2169 {
2170         printf("%s\n", fio_version_string);
2171         printf("%s [options] [job options] <job file(s)>\n", name);
2172         printf("  --debug=options\tEnable debug logging. May be one/more of:\n");
2173         show_debug_categories();
2174         printf("  --parse-only\t\tParse options only, don't start any IO\n");
2175         printf("  --merge-blktrace-only\tMerge blktraces only, don't start any IO\n");
2176         printf("  --output\t\tWrite output to file\n");
2177         printf("  --bandwidth-log\tGenerate aggregate bandwidth logs\n");
2178         printf("  --minimal\t\tMinimal (terse) output\n");
2179         printf("  --output-format=type\tOutput format (terse,json,json+,normal)\n");
2180         printf("  --terse-version=type\tSet terse version output format"
2181                 " (default 3, or 2 or 4)\n");
2182         printf("  --version\t\tPrint version info and exit\n");
2183         printf("  --help\t\tPrint this page\n");
2184         printf("  --cpuclock-test\tPerform test/validation of CPU clock\n");
2185         printf("  --crctest=[type]\tTest speed of checksum functions\n");
2186         printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
2187                 " them\n");
2188         printf("  --enghelp=engine\tPrint ioengine help, or list"
2189                 " available ioengines\n");
2190         printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
2191                 " cmd\n");
2192         printf("  --showcmd\t\tTurn a job file into command line options\n");
2193         printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
2194         printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
2195         printf("  --eta-newline=t\tForce a new line for every 't'");
2196         printf(" period passed\n");
2197         printf("  --status-interval=t\tForce full status dump every");
2198         printf(" 't' period passed\n");
2199         printf("  --readonly\t\tTurn on safety read-only checks, preventing"
2200                 " writes\n");
2201         printf("  --section=name\tOnly run specified section in job file,"
2202                 " multiple sections can be specified\n");
2203         printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
2204                 " (def 16384)\n");
2205         printf("  --warnings-fatal\tFio parser warnings are fatal\n");
2206         printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
2207         printf("  --server=args\t\tStart a backend fio server\n");
2208         printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
2209         printf("  --client=hostname\tTalk to remote backend(s) fio server at hostname\n");
2210         printf("  --remote-config=file\tTell fio server to load this local job file\n");
2211         printf("  --idle-prof=option\tReport cpu idleness on a system or percpu basis\n"
2212                 "\t\t\t(option=system,percpu) or run unit work\n"
2213                 "\t\t\tcalibration only (option=calibrate)\n");
2214 #ifdef CONFIG_ZLIB
2215         printf("  --inflate-log=log\tInflate and output compressed log\n");
2216 #endif
2217         printf("  --trigger-file=file\tExecute trigger cmd when file exists\n");
2218         printf("  --trigger-timeout=t\tExecute trigger at this time\n");
2219         printf("  --trigger=cmd\t\tSet this command as local trigger\n");
2220         printf("  --trigger-remote=cmd\tSet this command as remote trigger\n");
2221         printf("  --aux-path=path\tUse this path for fio state generated files\n");
2222         printf("\nFio was written by Jens Axboe <axboe@kernel.dk>\n");
2223 }
2224
2225 #ifdef FIO_INC_DEBUG
2226 const struct debug_level debug_levels[] = {
2227         { .name = "process",
2228           .help = "Process creation/exit logging",
2229           .shift = FD_PROCESS,
2230         },
2231         { .name = "file",
2232           .help = "File related action logging",
2233           .shift = FD_FILE,
2234         },
2235         { .name = "io",
2236           .help = "IO and IO engine action logging (offsets, queue, completions, etc)",
2237           .shift = FD_IO,
2238         },
2239         { .name = "mem",
2240           .help = "Memory allocation/freeing logging",
2241           .shift = FD_MEM,
2242         },
2243         { .name = "blktrace",
2244           .help = "blktrace action logging",
2245           .shift = FD_BLKTRACE,
2246         },
2247         { .name = "verify",
2248           .help = "IO verification action logging",
2249           .shift = FD_VERIFY,
2250         },
2251         { .name = "random",
2252           .help = "Random generation logging",
2253           .shift = FD_RANDOM,
2254         },
2255         { .name = "parse",
2256           .help = "Parser logging",
2257           .shift = FD_PARSE,
2258         },
2259         { .name = "diskutil",
2260           .help = "Disk utility logging actions",
2261           .shift = FD_DISKUTIL,
2262         },
2263         { .name = "job",
2264           .help = "Logging related to creating/destroying jobs",
2265           .shift = FD_JOB,
2266         },
2267         { .name = "mutex",
2268           .help = "Mutex logging",
2269           .shift = FD_MUTEX
2270         },
2271         { .name = "profile",
2272           .help = "Logging related to profiles",
2273           .shift = FD_PROFILE,
2274         },
2275         { .name = "time",
2276           .help = "Logging related to time keeping functions",
2277           .shift = FD_TIME,
2278         },
2279         { .name = "net",
2280           .help = "Network logging",
2281           .shift = FD_NET,
2282         },
2283         { .name = "rate",
2284           .help = "Rate logging",
2285           .shift = FD_RATE,
2286         },
2287         { .name = "compress",
2288           .help = "Log compression logging",
2289           .shift = FD_COMPRESS,
2290         },
2291         { .name = "steadystate",
2292           .help = "Steady state detection logging",
2293           .shift = FD_STEADYSTATE,
2294         },
2295         { .name = "helperthread",
2296           .help = "Helper thread logging",
2297           .shift = FD_HELPERTHREAD,
2298         },
2299         { .name = "zbd",
2300           .help = "Zoned Block Device logging",
2301           .shift = FD_ZBD,
2302         },
2303         { .name = NULL, },
2304 };
2305
2306 static int set_debug(const char *string)
2307 {
2308         const struct debug_level *dl;
2309         char *p = (char *) string;
2310         char *opt;
2311         int i;
2312
2313         if (!string)
2314                 return 0;
2315
2316         if (!strcmp(string, "?") || !strcmp(string, "help")) {
2317                 log_info("fio: dumping debug options:");
2318                 for (i = 0; debug_levels[i].name; i++) {
2319                         dl = &debug_levels[i];
2320                         log_info("%s,", dl->name);
2321                 }
2322                 log_info("all\n");
2323                 return 1;
2324         }
2325
2326         while ((opt = strsep(&p, ",")) != NULL) {
2327                 int found = 0;
2328
2329                 if (!strncmp(opt, "all", 3)) {
2330                         log_info("fio: set all debug options\n");
2331                         fio_debug = ~0UL;
2332                         continue;
2333                 }
2334
2335                 for (i = 0; debug_levels[i].name; i++) {
2336                         dl = &debug_levels[i];
2337                         found = !strncmp(opt, dl->name, strlen(dl->name));
2338                         if (!found)
2339                                 continue;
2340
2341                         if (dl->shift == FD_JOB) {
2342                                 opt = strchr(opt, ':');
2343                                 if (!opt) {
2344                                         log_err("fio: missing job number\n");
2345                                         break;
2346                                 }
2347                                 opt++;
2348                                 fio_debug_jobno = atoi(opt);
2349                                 log_info("fio: set debug jobno %d\n",
2350                                                         fio_debug_jobno);
2351                         } else {
2352                                 log_info("fio: set debug option %s\n", opt);
2353                                 fio_debug |= (1UL << dl->shift);
2354                         }
2355                         break;
2356                 }
2357
2358                 if (!found)
2359                         log_err("fio: debug mask %s not found\n", opt);
2360         }
2361         return 0;
2362 }
2363 #else
2364 static int set_debug(const char *string)
2365 {
2366         log_err("fio: debug tracing not included in build\n");
2367         return 1;
2368 }
2369 #endif
2370
2371 static void fio_options_fill_optstring(void)
2372 {
2373         char *ostr = cmd_optstr;
2374         int i, c;
2375
2376         c = i = 0;
2377         while (l_opts[i].name) {
2378                 ostr[c++] = l_opts[i].val;
2379                 if (l_opts[i].has_arg == required_argument)
2380                         ostr[c++] = ':';
2381                 else if (l_opts[i].has_arg == optional_argument) {
2382                         ostr[c++] = ':';
2383                         ostr[c++] = ':';
2384                 }
2385                 i++;
2386         }
2387         ostr[c] = '\0';
2388 }
2389
2390 static int client_flag_set(char c)
2391 {
2392         int i;
2393
2394         i = 0;
2395         while (l_opts[i].name) {
2396                 int val = l_opts[i].val;
2397
2398                 if (c == (val & 0xff))
2399                         return (val & FIO_CLIENT_FLAG);
2400
2401                 i++;
2402         }
2403
2404         return 0;
2405 }
2406
2407 static void parse_cmd_client(void *client, char *opt)
2408 {
2409         fio_client_add_cmd_option(client, opt);
2410 }
2411
2412 static void show_closest_option(const char *name)
2413 {
2414         int best_option, best_distance;
2415         int i, distance;
2416
2417         while (*name == '-')
2418                 name++;
2419
2420         best_option = -1;
2421         best_distance = INT_MAX;
2422         i = 0;
2423         while (l_opts[i].name) {
2424                 distance = string_distance(name, l_opts[i].name);
2425                 if (distance < best_distance) {
2426                         best_distance = distance;
2427                         best_option = i;
2428                 }
2429                 i++;
2430         }
2431
2432         if (best_option != -1 && string_distance_ok(name, best_distance))
2433                 log_err("Did you mean %s?\n", l_opts[best_option].name);
2434 }
2435
2436 static int parse_output_format(const char *optarg)
2437 {
2438         char *p, *orig, *opt;
2439         int ret = 0;
2440
2441         p = orig = strdup(optarg);
2442
2443         output_format = 0;
2444
2445         while ((opt = strsep(&p, ",")) != NULL) {
2446                 if (!strcmp(opt, "minimal") ||
2447                     !strcmp(opt, "terse") ||
2448                     !strcmp(opt, "csv"))
2449                         output_format |= FIO_OUTPUT_TERSE;
2450                 else if (!strcmp(opt, "json"))
2451                         output_format |= FIO_OUTPUT_JSON;
2452                 else if (!strcmp(opt, "json+"))
2453                         output_format |= (FIO_OUTPUT_JSON | FIO_OUTPUT_JSON_PLUS);
2454                 else if (!strcmp(opt, "normal"))
2455                         output_format |= FIO_OUTPUT_NORMAL;
2456                 else {
2457                         log_err("fio: invalid output format %s\n", opt);
2458                         ret = 1;
2459                         break;
2460                 }
2461         }
2462
2463         free(orig);
2464         return ret;
2465 }
2466
2467 int parse_cmd_line(int argc, char *argv[], int client_type)
2468 {
2469         struct thread_data *td = NULL;
2470         int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
2471         char *ostr = cmd_optstr;
2472         char *pid_file = NULL;
2473         void *cur_client = NULL;
2474         bool backend = false;
2475
2476         /*
2477          * Reset optind handling, since we may call this multiple times
2478          * for the backend.
2479          */
2480         optind = 1;
2481
2482         while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
2483                 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
2484                         parse_cmd_client(cur_client, argv[optind - 1]);
2485                         c &= ~FIO_CLIENT_FLAG;
2486                 }
2487
2488                 switch (c) {
2489                 case 'a':
2490                         smalloc_pool_size = atoi(optarg);
2491                         smalloc_pool_size <<= 10;
2492                         sinit();
2493                         break;
2494                 case 'l':
2495                         log_err("fio: --latency-log is deprecated. Use per-job latency log options.\n");
2496                         do_exit++;
2497                         exit_val = 1;
2498                         break;
2499                 case 'b':
2500                         write_bw_log = true;
2501                         break;
2502                 case 'o': {
2503                         FILE *tmp;
2504
2505                         if (f_out && f_out != stdout)
2506                                 fclose(f_out);
2507
2508                         tmp = fopen(optarg, "w+");
2509                         if (!tmp) {
2510                                 log_err("fio: output file open error: %s\n", strerror(errno));
2511                                 exit_val = 1;
2512                                 do_exit++;
2513                                 break;
2514                         }
2515                         f_err = f_out = tmp;
2516                         break;
2517                         }
2518                 case 'm':
2519                         output_format = FIO_OUTPUT_TERSE;
2520                         break;
2521                 case 'F':
2522                         if (parse_output_format(optarg)) {
2523                                 log_err("fio: failed parsing output-format\n");
2524                                 exit_val = 1;
2525                                 do_exit++;
2526                                 break;
2527                         }
2528                         break;
2529                 case 'f':
2530                         output_format |= FIO_OUTPUT_TERSE;
2531                         break;
2532                 case 'h':
2533                         did_arg = true;
2534                         if (!cur_client) {
2535                                 usage(argv[0]);
2536                                 do_exit++;
2537                         }
2538                         break;
2539                 case 'c':
2540                         did_arg = true;
2541                         if (!cur_client) {
2542                                 fio_show_option_help(optarg);
2543                                 do_exit++;
2544                         }
2545                         break;
2546                 case 'i':
2547                         did_arg = true;
2548                         if (!cur_client) {
2549                                 fio_show_ioengine_help(optarg);
2550                                 do_exit++;
2551                         }
2552                         break;
2553                 case 's':
2554                         did_arg = true;
2555                         dump_cmdline = true;
2556                         break;
2557                 case 'r':
2558                         read_only = 1;
2559                         break;
2560                 case 'v':
2561                         did_arg = true;
2562                         if (!cur_client) {
2563                                 log_info("%s\n", fio_version_string);
2564                                 do_exit++;
2565                         }
2566                         break;
2567                 case 'V':
2568                         terse_version = atoi(optarg);
2569                         if (!(terse_version >= 2 && terse_version <= 5)) {
2570                                 log_err("fio: bad terse version format\n");
2571                                 exit_val = 1;
2572                                 do_exit++;
2573                         }
2574                         break;
2575                 case 'e':
2576                         if (!strcmp("always", optarg))
2577                                 eta_print = FIO_ETA_ALWAYS;
2578                         else if (!strcmp("never", optarg))
2579                                 eta_print = FIO_ETA_NEVER;
2580                         break;
2581                 case 'E': {
2582                         long long t = 0;
2583
2584                         if (check_str_time(optarg, &t, 1)) {
2585                                 log_err("fio: failed parsing eta time %s\n", optarg);
2586                                 exit_val = 1;
2587                                 do_exit++;
2588                                 break;
2589                         }
2590                         eta_new_line = t / 1000;
2591                         if (!eta_new_line) {
2592                                 log_err("fio: eta new line time too short\n");
2593                                 exit_val = 1;
2594                                 do_exit++;
2595                         }
2596                         break;
2597                         }
2598                 case 'O': {
2599                         long long t = 0;
2600
2601                         if (check_str_time(optarg, &t, 1)) {
2602                                 log_err("fio: failed parsing eta interval %s\n", optarg);
2603                                 exit_val = 1;
2604                                 do_exit++;
2605                                 break;
2606                         }
2607                         eta_interval_msec = t / 1000;
2608                         if (eta_interval_msec < DISK_UTIL_MSEC) {
2609                                 log_err("fio: eta interval time too short (%umsec min)\n", DISK_UTIL_MSEC);
2610                                 exit_val = 1;
2611                                 do_exit++;
2612                         }
2613                         break;
2614                         }
2615                 case 'd':
2616                         if (set_debug(optarg))
2617                                 do_exit++;
2618                         break;
2619                 case 'P':
2620                         did_arg = true;
2621                         parse_only = true;
2622                         break;
2623                 case 'x': {
2624                         size_t new_size;
2625
2626                         if (!strcmp(optarg, "global")) {
2627                                 log_err("fio: can't use global as only "
2628                                         "section\n");
2629                                 do_exit++;
2630                                 exit_val = 1;
2631                                 break;
2632                         }
2633                         new_size = (nr_job_sections + 1) * sizeof(char *);
2634                         job_sections = realloc(job_sections, new_size);
2635                         job_sections[nr_job_sections] = strdup(optarg);
2636                         nr_job_sections++;
2637                         break;
2638                         }
2639 #ifdef CONFIG_ZLIB
2640                 case 'X':
2641                         exit_val = iolog_file_inflate(optarg);
2642                         did_arg = true;
2643                         do_exit++;
2644                         break;
2645 #endif
2646                 case 'p':
2647                         did_arg = true;
2648                         if (exec_profile)
2649                                 free(exec_profile);
2650                         exec_profile = strdup(optarg);
2651                         break;
2652                 case FIO_GETOPT_JOB: {
2653                         const char *opt = l_opts[lidx].name;
2654                         char *val = optarg;
2655
2656                         if (!strncmp(opt, "name", 4) && td) {
2657                                 ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2658                                 if (ret)
2659                                         goto out_free;
2660                                 td = NULL;
2661                                 did_arg = true;
2662                         }
2663                         if (!td) {
2664                                 int is_section = !strncmp(opt, "name", 4);
2665                                 int global = 0;
2666
2667                                 if (!is_section || !strncmp(val, "global", 6))
2668                                         global = 1;
2669
2670                                 if (is_section && skip_this_section(val))
2671                                         continue;
2672
2673                                 td = get_new_job(global, &def_thread, true, NULL);
2674                                 if (!td || ioengine_load(td)) {
2675                                         if (td) {
2676                                                 put_job(td);
2677                                                 td = NULL;
2678                                         }
2679                                         do_exit++;
2680                                         exit_val = 1;
2681                                         break;
2682                                 }
2683                                 fio_options_set_ioengine_opts(l_opts, td);
2684                         }
2685
2686                         if ((!val || !strlen(val)) &&
2687                             l_opts[lidx].has_arg == required_argument) {
2688                                 log_err("fio: option %s requires an argument\n", opt);
2689                                 ret = 1;
2690                         } else
2691                                 ret = fio_cmd_option_parse(td, opt, val);
2692
2693                         if (ret) {
2694                                 if (td) {
2695                                         put_job(td);
2696                                         td = NULL;
2697                                 }
2698                                 do_exit++;
2699                                 exit_val = 1;
2700                         }
2701
2702                         if (!ret && !strcmp(opt, "ioengine")) {
2703                                 if (ioengine_load(td)) {
2704                                         put_job(td);
2705                                         td = NULL;
2706                                         do_exit++;
2707                                         exit_val = 1;
2708                                         break;
2709                                 }
2710                                 fio_options_set_ioengine_opts(l_opts, td);
2711                         }
2712                         break;
2713                 }
2714                 case FIO_GETOPT_IOENGINE: {
2715                         const char *opt = l_opts[lidx].name;
2716                         char *val = optarg;
2717
2718                         if (!td)
2719                                 break;
2720
2721                         ret = fio_cmd_ioengine_option_parse(td, opt, val);
2722                         break;
2723                 }
2724                 case 'w':
2725                         warnings_fatal = 1;
2726                         break;
2727                 case 'j':
2728                         max_jobs = atoi(optarg);
2729                         if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
2730                                 log_err("fio: invalid max jobs: %d\n", max_jobs);
2731                                 do_exit++;
2732                                 exit_val = 1;
2733                         }
2734                         break;
2735                 case 'S':
2736                         did_arg = true;
2737 #ifndef CONFIG_NO_SHM
2738                         if (nr_clients) {
2739                                 log_err("fio: can't be both client and server\n");
2740                                 do_exit++;
2741                                 exit_val = 1;
2742                                 break;
2743                         }
2744                         if (optarg)
2745                                 fio_server_set_arg(optarg);
2746                         is_backend = true;
2747                         backend = true;
2748 #else
2749                         log_err("fio: client/server requires SHM support\n");
2750                         do_exit++;
2751                         exit_val = 1;
2752 #endif
2753                         break;
2754                 case 'D':
2755                         if (pid_file)
2756                                 free(pid_file);
2757                         pid_file = strdup(optarg);
2758                         break;
2759                 case 'I':
2760                         if ((ret = fio_idle_prof_parse_opt(optarg))) {
2761                                 /* exit on error and calibration only */
2762                                 did_arg = true;
2763                                 do_exit++;
2764                                 if (ret == -1)
2765                                         exit_val = 1;
2766                         }
2767                         break;
2768                 case 'C':
2769                         did_arg = true;
2770                         if (is_backend) {
2771                                 log_err("fio: can't be both client and server\n");
2772                                 do_exit++;
2773                                 exit_val = 1;
2774                                 break;
2775                         }
2776                         /* if --client parameter contains a pathname */
2777                         if (0 == access(optarg, R_OK)) {
2778                                 /* file contains a list of host addrs or names */
2779                                 char hostaddr[PATH_MAX] = {0};
2780                                 char formatstr[8];
2781                                 FILE * hostf = fopen(optarg, "r");
2782                                 if (!hostf) {
2783                                         log_err("fio: could not open client list file %s for read\n", optarg);
2784                                         do_exit++;
2785                                         exit_val = 1;
2786                                         break;
2787                                 }
2788                                 sprintf(formatstr, "%%%ds", PATH_MAX - 1);
2789                                 /*
2790                                  * read at most PATH_MAX-1 chars from each
2791                                  * record in this file
2792                                  */
2793                                 while (fscanf(hostf, formatstr, hostaddr) == 1) {
2794                                         /* expect EVERY host in file to be valid */
2795                                         if (fio_client_add(&fio_client_ops, hostaddr, &cur_client)) {
2796                                                 log_err("fio: failed adding client %s from file %s\n", hostaddr, optarg);
2797                                                 do_exit++;
2798                                                 exit_val = 1;
2799                                                 break;
2800                                         }
2801                                 }
2802                                 fclose(hostf);
2803                                 break; /* no possibility of job file for "this client only" */
2804                         }
2805                         if (fio_client_add(&fio_client_ops, optarg, &cur_client)) {
2806                                 log_err("fio: failed adding client %s\n", optarg);
2807                                 do_exit++;
2808                                 exit_val = 1;
2809                                 break;
2810                         }
2811                         /*
2812                          * If the next argument exists and isn't an option,
2813                          * assume it's a job file for this client only.
2814                          */
2815                         while (optind < argc) {
2816                                 if (!strncmp(argv[optind], "--", 2) ||
2817                                     !strncmp(argv[optind], "-", 1))
2818                                         break;
2819
2820                                 if (fio_client_add_ini_file(cur_client, argv[optind], false))
2821                                         break;
2822                                 optind++;
2823                         }
2824                         break;
2825                 case 'R':
2826                         did_arg = true;
2827                         if (fio_client_add_ini_file(cur_client, optarg, true)) {
2828                                 do_exit++;
2829                                 exit_val = 1;
2830                         }
2831                         break;
2832                 case 'T':
2833                         did_arg = true;
2834                         do_exit++;
2835                         exit_val = fio_monotonic_clocktest(1);
2836                         break;
2837                 case 'G':
2838                         did_arg = true;
2839                         do_exit++;
2840                         exit_val = fio_crctest(optarg);
2841                         break;
2842                 case 'M':
2843                         did_arg = true;
2844                         do_exit++;
2845                         exit_val = fio_memcpy_test(optarg);
2846                         break;
2847                 case 'L': {
2848                         long long val;
2849
2850                         if (check_str_time(optarg, &val, 1)) {
2851                                 log_err("fio: failed parsing time %s\n", optarg);
2852                                 do_exit++;
2853                                 exit_val = 1;
2854                                 break;
2855                         }
2856                         if (val < 1000) {
2857                                 log_err("fio: status interval too small\n");
2858                                 do_exit++;
2859                                 exit_val = 1;
2860                         }
2861                         status_interval = val / 1000;
2862                         break;
2863                         }
2864                 case 'W':
2865                         if (trigger_file)
2866                                 free(trigger_file);
2867                         trigger_file = strdup(optarg);
2868                         break;
2869                 case 'H':
2870                         if (trigger_cmd)
2871                                 free(trigger_cmd);
2872                         trigger_cmd = strdup(optarg);
2873                         break;
2874                 case 'J':
2875                         if (trigger_remote_cmd)
2876                                 free(trigger_remote_cmd);
2877                         trigger_remote_cmd = strdup(optarg);
2878                         break;
2879                 case 'K':
2880                         if (aux_path)
2881                                 free(aux_path);
2882                         aux_path = strdup(optarg);
2883                         break;
2884                 case 'B':
2885                         if (check_str_time(optarg, &trigger_timeout, 1)) {
2886                                 log_err("fio: failed parsing time %s\n", optarg);
2887                                 do_exit++;
2888                                 exit_val = 1;
2889                         }
2890                         trigger_timeout /= 1000000;
2891                         break;
2892
2893                 case 'A':
2894                         did_arg = true;
2895                         merge_blktrace_only = true;
2896                         break;
2897                 case '?':
2898                         log_err("%s: unrecognized option '%s'\n", argv[0],
2899                                                         argv[optind - 1]);
2900                         show_closest_option(argv[optind - 1]);
2901                         /* fall through */
2902                 default:
2903                         do_exit++;
2904                         exit_val = 1;
2905                         break;
2906                 }
2907                 if (do_exit)
2908                         break;
2909         }
2910
2911         if (do_exit && !(is_backend || nr_clients))
2912                 exit(exit_val);
2913
2914         if (nr_clients && fio_clients_connect())
2915                 exit(1);
2916
2917         if (is_backend && backend)
2918                 return fio_start_server(pid_file);
2919         else if (pid_file)
2920                 free(pid_file);
2921
2922         if (td) {
2923                 if (!ret) {
2924                         ret = add_job(td, td->o.name ?: "fio", 0, 0, client_type);
2925                         if (ret)
2926                                 exit(1);
2927                 }
2928         }
2929
2930         while (!ret && optind < argc) {
2931                 ini_idx++;
2932                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
2933                 ini_file[ini_idx - 1] = strdup(argv[optind]);
2934                 optind++;
2935         }
2936
2937 out_free:
2938         return ini_idx;
2939 }
2940
2941 int fio_init_options(void)
2942 {
2943         f_out = stdout;
2944         f_err = stderr;
2945
2946         fio_options_fill_optstring();
2947         fio_options_dup_and_init(l_opts);
2948
2949         atexit(free_shm);
2950
2951         if (fill_def_thread())
2952                 return 1;
2953
2954         return 0;
2955 }
2956
2957 extern int fio_check_options(struct thread_options *);
2958
2959 int parse_options(int argc, char *argv[])
2960 {
2961         const int type = FIO_CLIENT_TYPE_CLI;
2962         int job_files, i;
2963
2964         if (fio_init_options())
2965                 return 1;
2966         if (fio_test_cconv(&def_thread.o))
2967                 log_err("fio: failed internal cconv test\n");
2968
2969         job_files = parse_cmd_line(argc, argv, type);
2970
2971         if (job_files > 0) {
2972                 for (i = 0; i < job_files; i++) {
2973                         if (i && fill_def_thread())
2974                                 return 1;
2975                         if (nr_clients) {
2976                                 if (fio_clients_send_ini(ini_file[i]))
2977                                         return 1;
2978                                 free(ini_file[i]);
2979                         } else if (!is_backend) {
2980                                 if (parse_jobs_ini(ini_file[i], 0, i, type))
2981                                         return 1;
2982                                 free(ini_file[i]);
2983                         }
2984                 }
2985         } else if (nr_clients) {
2986                 if (fill_def_thread())
2987                         return 1;
2988                 if (fio_clients_send_ini(NULL))
2989                         return 1;
2990         }
2991
2992         free(ini_file);
2993         fio_options_free(&def_thread);
2994         filesetup_mem_free();
2995
2996         if (!thread_number) {
2997                 if (parse_dryrun())
2998                         return 0;
2999                 if (exec_profile)
3000                         return 0;
3001                 if (is_backend || nr_clients)
3002                         return 0;
3003                 if (did_arg)
3004                         return 0;
3005
3006                 log_err("No job(s) defined\n\n");
3007                 usage(argv[0]);
3008                 return 1;
3009         }
3010
3011         if (output_format & FIO_OUTPUT_NORMAL)
3012                 log_info("%s\n", fio_version_string);
3013
3014         return 0;
3015 }
3016
3017 void options_default_fill(struct thread_options *o)
3018 {
3019         memcpy(o, &def_thread.o, sizeof(*o));
3020 }
3021
3022 struct thread_data *get_global_options(void)
3023 {
3024         return &def_thread;
3025 }