init.c

   1 /*
   2  * This file contains job initialization and setup functions.
   3  */
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6 #include <unistd.h>
   7 #include <fcntl.h>
   8 #include <ctype.h>
   9 #include <string.h>
  10 #include <errno.h>
  11 #include <getopt.h>
  12 #include <sys/ipc.h>
  13 #include <sys/shm.h>
  14 #include <sys/types.h>
  15 #include <sys/stat.h>
  16
  17 #include "fio.h"
  18 #include "parse.h"
  19
  20 static char fio_version_string[] = "fio 1.17.3";
  21
  22 #define FIO_RANDSEED            (0xb1899bedUL)
  23
  24 static char **ini_file;
  25 static int max_jobs = MAX_JOBS;
  26 static int dump_cmdline;
  27
  28 struct thread_data def_thread;
  29 struct thread_data *threads = NULL;
  30
  31 int exitall_on_terminate = 0;
  32 int terse_output = 0;
  33 int eta_print;
  34 unsigned long long mlock_size = 0;
  35 FILE *f_out = NULL;
  36 FILE *f_err = NULL;
  37
  38 int write_bw_log = 0;
  39 int read_only = 0;
  40
  41 static int def_timeout = 0;
  42 static int write_lat_log = 0;
  43
  44 static int prev_group_jobs;
  45
  46 unsigned long fio_debug = 0;
  47
  48 /*
  49  * Command line options. These will contain the above, plus a few
  50  * extra that only pertain to fio itself and not jobs.
  51  */
  52 static struct option long_options[FIO_NR_OPTIONS] = {
  53         {
  54                 .name           = "output",
  55                 .has_arg        = required_argument,
  56                 .val            = 'o',
  57         },
  58         {
  59                 .name           = "timeout",
  60                 .has_arg        = required_argument,
  61                 .val            = 't',
  62         },
  63         {
  64                 .name           = "latency-log",
  65                 .has_arg        = required_argument,
  66                 .val            = 'l',
  67         },
  68         {
  69                 .name           = "bandwidth-log",
  70                 .has_arg        = required_argument,
  71                 .val            = 'b',
  72         },
  73         {
  74                 .name           = "minimal",
  75                 .has_arg        = optional_argument,
  76                 .val            = 'm',
  77         },
  78         {
  79                 .name           = "version",
  80                 .has_arg        = no_argument,
  81                 .val            = 'v',
  82         },
  83         {
  84                 .name           = "help",
  85                 .has_arg        = no_argument,
  86                 .val            = 'h',
  87         },
  88         {
  89                 .name           = "cmdhelp",
  90                 .has_arg        = optional_argument,
  91                 .val            = 'c',
  92         },
  93         {
  94                 .name           = "showcmd",
  95                 .has_arg        = no_argument,
  96                 .val            = 's',
  97         },
  98         {
  99                 .name           = "readonly",
 100                 .has_arg        = no_argument,
 101                 .val            = 'r',
 102         },
 103         {
 104                 .name           = "eta",
 105                 .has_arg        = required_argument,
 106                 .val            = 'e',
 107         },
 108         {
 109                 .name           = "debug",
 110                 .has_arg        = required_argument,
 111                 .val            = 'd',
 112         },
 113         {
 114                 .name           = NULL,
 115         },
 116 };
 117
 118 FILE *get_f_out()
 119 {
 120         return f_out;
 121 }
 122
 123 FILE *get_f_err()
 124 {
 125         return f_err;
 126 }
 127
 128 /*
 129  * Return a free job structure.
 130  */
 131 static struct thread_data *get_new_job(int global, struct thread_data *parent)
 132 {
 133         struct thread_data *td;
 134
 135         if (global)
 136                 return &def_thread;
 137         if (thread_number >= max_jobs)
 138                 return NULL;
 139
 140         td = &threads[thread_number++];
 141         *td = *parent;
 142
 143         dup_files(td, parent);
 144         options_mem_dupe(td);
 145
 146         td->thread_number = thread_number;
 147         return td;
 148 }
 149
 150 static void put_job(struct thread_data *td)
 151 {
 152         if (td == &def_thread)
 153                 return;
 154
 155         if (td->error)
 156                 log_info("fio: %s\n", td->verror);
 157
 158         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 159         thread_number--;
 160 }
 161
 162 static int setup_rate(struct thread_data *td)
 163 {
 164         unsigned long nr_reads_per_msec;
 165         unsigned long long rate;
 166         unsigned int bs;
 167
 168         if (!td->o.rate && !td->o.rate_iops)
 169                 return 0;
 170
 171         if (td_rw(td))
 172                 bs = td->o.rw_min_bs;
 173         else if (td_read(td))
 174                 bs = td->o.min_bs[DDIR_READ];
 175         else
 176                 bs = td->o.min_bs[DDIR_WRITE];
 177
 178         if (td->o.rate) {
 179                 rate = td->o.rate;
 180                 nr_reads_per_msec = (rate * 1024 * 1000LL) / bs;
 181         } else
 182                 nr_reads_per_msec = td->o.rate_iops * 1000UL;
 183
 184         if (!nr_reads_per_msec) {
 185                 log_err("rate lower than supported\n");
 186                 return -1;
 187         }
 188
 189         td->rate_usec_cycle = 1000000000ULL / nr_reads_per_msec;
 190         td->rate_pending_usleep = 0;
 191         return 0;
 192 }
 193
 194 /*
 195  * Lazy way of fixing up options that depend on each other. We could also
 196  * define option callback handlers, but this is easier.
 197  */
 198 static int fixup_options(struct thread_data *td)
 199 {
 200         struct thread_options *o = &td->o;
 201
 202         if (read_only && td_write(td)) {
 203                 log_err("fio: job <%s> has write bit set, but fio is in read-only mode\n", td->o.name);
 204                 return 1;
 205         }
 206
 207         if (o->rwmix[DDIR_READ] + o->rwmix[DDIR_WRITE] > 100)
 208                 o->rwmix[DDIR_WRITE] = 100 - o->rwmix[DDIR_READ];
 209
 210         if (o->write_iolog_file && o->read_iolog_file) {
 211                 log_err("fio: read iolog overrides write_iolog\n");
 212                 free(o->write_iolog_file);
 213                 o->write_iolog_file = NULL;
 214         }
 215
 216         if (td->io_ops->flags & FIO_SYNCIO)
 217                 o->iodepth = 1;
 218         else {
 219                 if (!o->iodepth)
 220                         o->iodepth = o->open_files;
 221         }
 222
 223         /*
 224          * only really works for sequential io for now, and with 1 file
 225          */
 226         if (o->zone_size && td_random(td) && o->open_files == 1)
 227                 o->zone_size = 0;
 228
 229         /*
 230          * Reads can do overwrites, we always need to pre-create the file
 231          */
 232         if (td_read(td) || td_rw(td))
 233                 o->overwrite = 1;
 234
 235         if (!o->min_bs[DDIR_READ])
 236                 o->min_bs[DDIR_READ]= o->bs[DDIR_READ];
 237         if (!o->max_bs[DDIR_READ])
 238                 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
 239         if (!o->min_bs[DDIR_WRITE])
 240                 o->min_bs[DDIR_WRITE]= o->bs[DDIR_WRITE];
 241         if (!o->max_bs[DDIR_WRITE])
 242                 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
 243
 244         o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
 245
 246         if (!o->file_size_high)
 247                 o->file_size_high = o->file_size_low;
 248
 249         if (o->norandommap && o->verify != VERIFY_NONE) {
 250                 log_err("fio: norandommap given, verify disabled\n");
 251                 o->verify = VERIFY_NONE;
 252         }
 253         if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
 254                 log_err("fio: bs_unaligned may not work with raw io\n");
 255
 256         /*
 257          * thinktime_spin must be less than thinktime
 258          */
 259         if (o->thinktime_spin > o->thinktime)
 260                 o->thinktime_spin = o->thinktime;
 261
 262         /*
 263          * The low water mark cannot be bigger than the iodepth
 264          */
 265         if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
 266                 /*
 267                  * syslet work around - if the workload is sequential,
 268                  * we want to let the queue drain all the way down to
 269                  * avoid seeking between async threads
 270                  */
 271                 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
 272                         o->iodepth_low = 1;
 273                 else
 274                         o->iodepth_low = o->iodepth;
 275         }
 276
 277         /*
 278          * If batch number isn't set, default to the same as iodepth
 279          */
 280         if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
 281                 o->iodepth_batch = o->iodepth;
 282
 283         if (o->nr_files > td->files_index)
 284                 o->nr_files = td->files_index;
 285
 286         if (o->open_files > o->nr_files || !o->open_files)
 287                 o->open_files = o->nr_files;
 288
 289         if ((o->rate && o->rate_iops) || (o->ratemin && o->rate_iops_min)) {
 290                 log_err("fio: rate and rate_iops are mutually exclusive\n");
 291                 return 1;
 292         }
 293         if ((o->rate < o->ratemin) || (o->rate_iops < o->rate_iops_min)) {
 294                 log_err("fio: minimum rate exceeds rate\n");
 295                 return 1;
 296         }
 297
 298         if (!o->timeout && o->time_based) {
 299                 log_err("fio: time_based requires a runtime/timeout setting\n");
 300                 o->time_based = 0;
 301         }
 302
 303         if (o->fill_device && !o->size)
 304                 o->size = ULONG_LONG_MAX;
 305
 306         return 0;
 307 }
 308
 309 /*
 310  * This function leaks the buffer
 311  */
 312 static char *to_kmg(unsigned int val)
 313 {
 314         char *buf = malloc(32);
 315         char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
 316         char *p = post;
 317
 318         do {
 319                 if (val & 1023)
 320                         break;
 321
 322                 val >>= 10;
 323                 p++;
 324         } while (*p);
 325
 326         snprintf(buf, 31, "%u%c", val, *p);
 327         return buf;
 328 }
 329
 330 /* External engines are specified by "external:name.o") */
 331 static const char *get_engine_name(const char *str)
 332 {
 333         char *p = strstr(str, ":");
 334
 335         if (!p)
 336                 return str;
 337
 338         p++;
 339         strip_blank_front(&p);
 340         strip_blank_end(p);
 341         return p;
 342 }
 343
 344 static int exists_and_not_file(const char *filename)
 345 {
 346         struct stat sb;
 347
 348         if (lstat(filename, &sb) == -1)
 349                 return 0;
 350
 351         if (S_ISREG(sb.st_mode))
 352                 return 0;
 353
 354         return 1;
 355 }
 356
 357 /*
 358  * Initialize the various random states we need (random io, block size ranges,
 359  * read/write mix, etc).
 360  */
 361 static int init_random_state(struct thread_data *td)
 362 {
 363         unsigned long seeds[6];
 364         int fd;
 365
 366         fd = open("/dev/urandom", O_RDONLY);
 367         if (fd == -1) {
 368                 td_verror(td, errno, "open");
 369                 return 1;
 370         }
 371
 372         if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
 373                 td_verror(td, EIO, "read");
 374                 close(fd);
 375                 return 1;
 376         }
 377
 378         close(fd);
 379
 380         os_random_seed(seeds[0], &td->bsrange_state);
 381         os_random_seed(seeds[1], &td->verify_state);
 382         os_random_seed(seeds[2], &td->rwmix_state);
 383
 384         if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
 385                 os_random_seed(seeds[3], &td->next_file_state);
 386
 387         os_random_seed(seeds[5], &td->file_size_state);
 388
 389         if (!td_random(td))
 390                 return 0;
 391
 392         if (td->o.rand_repeatable)
 393                 seeds[4] = FIO_RANDSEED * td->thread_number;
 394
 395         os_random_seed(seeds[4], &td->random_state);
 396         return 0;
 397 }
 398
 399 /*
 400  * Adds a job to the list of things todo. Sanitizes the various options
 401  * to make sure we don't have conflicts, and initializes various
 402  * members of td.
 403  */
 404 static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
 405 {
 406         const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
 407                                    "randread", "randwrite", "randrw" };
 408         unsigned int i;
 409         const char *engine;
 410         char fname[PATH_MAX];
 411         int numjobs, file_alloced;
 412
 413         /*
 414          * the def_thread is just for options, it's not a real job
 415          */
 416         if (td == &def_thread)
 417                 return 0;
 418
 419         /*
 420          * if we are just dumping the output command line, don't add the job
 421          */
 422         if (dump_cmdline) {
 423                 put_job(td);
 424                 return 0;
 425         }
 426
 427         engine = get_engine_name(td->o.ioengine);
 428         td->io_ops = load_ioengine(td, engine);
 429         if (!td->io_ops) {
 430                 log_err("fio: failed to load engine %s\n", engine);
 431                 goto err;
 432         }
 433
 434         if (td->o.use_thread)
 435                 nr_thread++;
 436         else
 437                 nr_process++;
 438
 439         if (td->o.odirect)
 440                 td->io_ops->flags |= FIO_RAWIO;
 441
 442         file_alloced = 0;
 443         if (!td->o.filename && !td->files_index) {
 444                 file_alloced = 1;
 445
 446                 if (td->o.nr_files == 1 && exists_and_not_file(jobname))
 447                         add_file(td, jobname);
 448                 else {
 449                         for (i = 0; i < td->o.nr_files; i++) {
 450                                 sprintf(fname, "%s.%d.%d", jobname, td->thread_number, i);
 451                                 add_file(td, fname);
 452                         }
 453                 }
 454         }
 455
 456         if (fixup_options(td))
 457                 goto err;
 458
 459         if (td->io_ops->flags & FIO_DISKLESSIO) {
 460                 struct fio_file *f;
 461
 462                 for_each_file(td, f, i)
 463                         f->real_file_size = -1ULL;
 464         }
 465
 466         td->mutex = fio_sem_init(0);
 467
 468         td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
 469         td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
 470         td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
 471         td->ddir_nr = td->o.ddir_nr;
 472
 473         if ((td->o.stonewall || td->o.numjobs > 1 || td->o.new_group)
 474              && prev_group_jobs) {
 475                 prev_group_jobs = 0;
 476                 groupid++;
 477         }
 478
 479         td->groupid = groupid;
 480         prev_group_jobs++;
 481
 482         if (init_random_state(td))
 483                 goto err;
 484
 485         if (setup_rate(td))
 486                 goto err;
 487
 488         if (td->o.write_lat_log) {
 489                 setup_log(&td->ts.slat_log);
 490                 setup_log(&td->ts.clat_log);
 491         }
 492         if (td->o.write_bw_log)
 493                 setup_log(&td->ts.bw_log);
 494
 495         if (!td->o.name)
 496                 td->o.name = strdup(jobname);
 497
 498         if (!terse_output) {
 499                 if (!job_add_num) {
 500                         if (!strcmp(td->io_ops->name, "cpuio"))
 501                                 log_info("%s: ioengine=cpu, cpuload=%u, cpucycle=%u\n", td->o.name, td->o.cpuload, td->o.cpucycle);
 502                         else {
 503                                 char *c1, *c2, *c3, *c4;
 504
 505                                 c1 = to_kmg(td->o.min_bs[DDIR_READ]);
 506                                 c2 = to_kmg(td->o.max_bs[DDIR_READ]);
 507                                 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
 508                                 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
 509
 510                                 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s, ioengine=%s, iodepth=%u\n", td->o.name, td->groupid, ddir_str[td->o.td_ddir], c1, c2, c3, c4, td->io_ops->name, td->o.iodepth);
 511
 512                                 free(c1);
 513                                 free(c2);
 514                                 free(c3);
 515                                 free(c4);
 516                         }
 517                 } else if (job_add_num == 1)
 518                         log_info("...\n");
 519         }
 520
 521         /*
 522          * recurse add identical jobs, clear numjobs and stonewall options
 523          * as they don't apply to sub-jobs
 524          */
 525         numjobs = td->o.numjobs;
 526         while (--numjobs) {
 527                 struct thread_data *td_new = get_new_job(0, td);
 528
 529                 if (!td_new)
 530                         goto err;
 531
 532                 td_new->o.numjobs = 1;
 533                 td_new->o.stonewall = 0;
 534                 td_new->o.new_group = 0;
 535
 536                 if (file_alloced) {
 537                         td_new->o.filename = NULL;
 538                         td_new->files_index = 0;
 539                         td_new->files = NULL;
 540                 }
 541
 542                 job_add_num = numjobs - 1;
 543
 544                 if (add_job(td_new, jobname, job_add_num))
 545                         goto err;
 546         }
 547
 548         return 0;
 549 err:
 550         put_job(td);
 551         return -1;
 552 }
 553
 554 static int is_empty_or_comment(char *line)
 555 {
 556         unsigned int i;
 557
 558         for (i = 0; i < strlen(line); i++) {
 559                 if (line[i] == ';')
 560                         return 1;
 561                 if (line[i] == '#')
 562                         return 1;
 563                 if (!isspace(line[i]) && !iscntrl(line[i]))
 564                         return 0;
 565         }
 566
 567         return 1;
 568 }
 569
 570 /*
 571  * This is our [ini] type file parser.
 572  */
 573 static int parse_jobs_ini(char *file, int stonewall_flag)
 574 {
 575         unsigned int global;
 576         struct thread_data *td;
 577         char *string, *name;
 578         FILE *f;
 579         char *p;
 580         int ret = 0, stonewall;
 581         int first_sect = 1;
 582         int skip_fgets = 0;
 583
 584         if (!strcmp(file, "-"))
 585                 f = stdin;
 586         else
 587                 f = fopen(file, "r");
 588
 589         if (!f) {
 590                 perror("fopen job file");
 591                 return 1;
 592         }
 593
 594         string = malloc(4096);
 595
 596         /*
 597          * it's really 256 + small bit, 280 should suffice
 598          */
 599         name = malloc(280);
 600         memset(name, 0, 280);
 601
 602         stonewall = stonewall_flag;
 603         do {
 604                 /*
 605                  * if skip_fgets is set, we already have loaded a line we
 606                  * haven't handled.
 607                  */
 608                 if (!skip_fgets) {
 609                         p = fgets(string, 4095, f);
 610                         if (!p)
 611                                 break;
 612                 }
 613
 614                 skip_fgets = 0;
 615                 strip_blank_front(&p);
 616                 strip_blank_end(p);
 617
 618                 if (is_empty_or_comment(p))
 619                         continue;
 620                 if (sscanf(p, "[%255s]", name) != 1) {
 621                         log_err("fio: option <%s> outside of [] job section\n", p);
 622                         break;
 623                 }
 624
 625                 global = !strncmp(name, "global", 6);
 626
 627                 name[strlen(name) - 1] = '\0';
 628
 629                 if (dump_cmdline) {
 630                         if (first_sect)
 631                                 log_info("fio ");
 632                         if (!global)
 633                                 log_info("--name=%s ", name);
 634                         first_sect = 0;
 635                 }
 636
 637                 td = get_new_job(global, &def_thread);
 638                 if (!td) {
 639                         ret = 1;
 640                         break;
 641                 }
 642
 643                 /*
 644                  * Seperate multiple job files by a stonewall
 645                  */
 646                 if (!global && stonewall) {
 647                         td->o.stonewall = stonewall;
 648                         stonewall = 0;
 649                 }
 650
 651                 while ((p = fgets(string, 4096, f)) != NULL) {
 652                         if (is_empty_or_comment(p))
 653                                 continue;
 654
 655                         strip_blank_front(&p);
 656
 657                         /*
 658                          * new section, break out and make sure we don't
 659                          * fgets() a new line at the top.
 660                          */
 661                         if (p[0] == '[') {
 662                                 skip_fgets = 1;
 663                                 break;
 664                         }
 665
 666                         strip_blank_end(p);
 667
 668                         /*
 669                          * Don't break here, continue parsing options so we
 670                          * dump all the bad ones. Makes trial/error fixups
 671                          * easier on the user.
 672                          */
 673                         ret |= fio_option_parse(td, p);
 674                         if (!ret && dump_cmdline)
 675                                 log_info("--%s ", p);
 676                 }
 677
 678                 if (!ret)
 679                         ret = add_job(td, name, 0);
 680                 else {
 681                         log_err("fio: job %s dropped\n", name);
 682                         put_job(td);
 683                 }
 684         } while (!ret);
 685
 686         if (dump_cmdline)
 687                 log_info("\n");
 688
 689         free(string);
 690         free(name);
 691         if (f != stdin)
 692                 fclose(f);
 693         return ret;
 694 }
 695
 696 static int fill_def_thread(void)
 697 {
 698         memset(&def_thread, 0, sizeof(def_thread));
 699
 700         fio_getaffinity(getpid(), &def_thread.o.cpumask);
 701
 702         /*
 703          * fill default options
 704          */
 705         fio_fill_default_options(&def_thread);
 706
 707         def_thread.o.timeout = def_timeout;
 708         def_thread.o.write_bw_log = write_bw_log;
 709         def_thread.o.write_lat_log = write_lat_log;
 710
 711         return 0;
 712 }
 713
 714 static void free_shm(void)
 715 {
 716         struct shmid_ds sbuf;
 717
 718         if (threads) {
 719                 shmdt((void *) threads);
 720                 threads = NULL;
 721                 shmctl(shm_id, IPC_RMID, &sbuf);
 722         }
 723 }
 724
 725 /*
 726  * The thread area is shared between the main process and the job
 727  * threads/processes. So setup a shared memory segment that will hold
 728  * all the job info.
 729  */
 730 static int setup_thread_area(void)
 731 {
 732         /*
 733          * 1024 is too much on some machines, scale max_jobs if
 734          * we get a failure that looks like too large a shm segment
 735          */
 736         do {
 737                 size_t size = max_jobs * sizeof(struct thread_data);
 738
 739                 shm_id = shmget(0, size, IPC_CREAT | 0600);
 740                 if (shm_id != -1)
 741                         break;
 742                 if (errno != EINVAL) {
 743                         perror("shmget");
 744                         break;
 745                 }
 746
 747                 max_jobs >>= 1;
 748         } while (max_jobs);
 749
 750         if (shm_id == -1)
 751                 return 1;
 752
 753         threads = shmat(shm_id, NULL, 0);
 754         if (threads == (void *) -1) {
 755                 perror("shmat");
 756                 return 1;
 757         }
 758
 759         memset(threads, 0, max_jobs * sizeof(struct thread_data));
 760         atexit(free_shm);
 761         return 0;
 762 }
 763
 764 static void usage(const char *name)
 765 {
 766         printf("%s\n", fio_version_string);
 767         printf("%s [options] [job options] <job file(s)>\n", name);
 768         printf("\t--debug=options\tEnable debug logging\n");
 769         printf("\t--output\tWrite output to file\n");
 770         printf("\t--timeout\tRuntime in seconds\n");
 771         printf("\t--latency-log\tGenerate per-job latency logs\n");
 772         printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
 773         printf("\t--minimal\tMinimal (terse) output\n");
 774         printf("\t--version\tPrint version info and exit\n");
 775         printf("\t--help\t\tPrint this page\n");
 776         printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of them\n");
 777         printf("\t--showcmd\tTurn a job file into command line options\n");
 778         printf("\t--eta=when\tWhen ETA estimate should be printed\n");
 779         printf("\t          \tMay be \"always\", \"never\" or \"auto\"\n");
 780 }
 781
 782 struct debug_level {
 783         const char *name;
 784         unsigned long mask;
 785 };
 786
 787 struct debug_level debug_levels[] = {
 788         { .name = "process", .mask = FD_PROCESS, },
 789         { .name = "file", .mask = FD_PROCESS, },
 790         { .name = "io", .mask = FD_IO, },
 791         { .name = "mem", .mask = FD_MEM, },
 792         { },
 793 };
 794
 795 static void set_debug(const char *string)
 796 {
 797         struct debug_level *dl;
 798         char *p = (char *) string;
 799         char *opt;
 800         int i;
 801
 802         if (!strcmp(string, "?") || !strcmp(string, "help")) {
 803                 int i;
 804
 805                 log_info("fio: dumping debug options:");
 806                 for (i = 0; debug_levels[i].name; i++) {
 807                         dl = &debug_levels[i];
 808                         log_info("%s,", dl->name);
 809                 }
 810                 log_info("\n");
 811                 return;
 812         }
 813
 814         while ((opt = strsep(&p, ",")) != NULL) {
 815                 int found = 0;
 816
 817                 for (i = 0; debug_levels[i].name; i++) {
 818                         dl = &debug_levels[i];
 819                         if (!strncmp(opt, dl->name, strlen(opt))) {
 820                                 log_info("fio: set debug option %s\n", opt);
 821                                 found = 1;
 822                                 fio_debug |= dl->mask;
 823                                 break;
 824                         }
 825                 }
 826
 827                 if (!found)
 828                         log_err("fio: debug mask %s not found\n", opt);
 829         }
 830 }
 831
 832 static int parse_cmd_line(int argc, char *argv[])
 833 {
 834         struct thread_data *td = NULL;
 835         int c, ini_idx = 0, lidx, ret, dont_add_job = 0;
 836
 837         while ((c = getopt_long_only(argc, argv, "", long_options, &lidx)) != -1) {
 838                 switch (c) {
 839                 case 't':
 840                         def_timeout = atoi(optarg);
 841                         break;
 842                 case 'l':
 843                         write_lat_log = 1;
 844                         break;
 845                 case 'w':
 846                         write_bw_log = 1;
 847                         break;
 848                 case 'o':
 849                         f_out = fopen(optarg, "w+");
 850                         if (!f_out) {
 851                                 perror("fopen output");
 852                                 exit(1);
 853                         }
 854                         f_err = f_out;
 855                         break;
 856                 case 'm':
 857                         terse_output = 1;
 858                         break;
 859                 case 'h':
 860                         usage(argv[0]);
 861                         exit(0);
 862                 case 'c':
 863                         exit(fio_show_option_help(optarg));
 864                 case 's':
 865                         dump_cmdline = 1;
 866                         break;
 867                 case 'r':
 868                         read_only = 1;
 869                         break;
 870                 case 'v':
 871                         printf("%s\n", fio_version_string);
 872                         exit(0);
 873                 case 'e':
 874                         if (!strcmp("always", optarg))
 875                                 eta_print = FIO_ETA_ALWAYS;
 876                         else if (!strcmp("never", optarg))
 877                                 eta_print = FIO_ETA_NEVER;
 878                         break;
 879                 case 'd':
 880                         set_debug(optarg);
 881                         break;
 882                 case FIO_GETOPT_JOB: {
 883                         const char *opt = long_options[lidx].name;
 884                         char *val = optarg;
 885
 886                         if (!strncmp(opt, "name", 4) && td) {
 887                                 ret = add_job(td, td->o.name ?: "fio", 0);
 888                                 if (ret) {
 889                                         put_job(td);
 890                                         return 0;
 891                                 }
 892                                 td = NULL;
 893                         }
 894                         if (!td) {
 895                                 int global = 0;
 896
 897                                 if (strncmp(opt, "name", 4) ||
 898                                     !strncmp(val, "global", 6))
 899                                         global = 1;
 900
 901                                 td = get_new_job(global, &def_thread);
 902                                 if (!td)
 903                                         return 0;
 904                         }
 905
 906                         ret = fio_cmd_option_parse(td, opt, val);
 907                         if (ret)
 908                                 dont_add_job = 1;
 909                         break;
 910                 }
 911                 default:
 912                         break;
 913                 }
 914         }
 915
 916         if (td) {
 917                 if (dont_add_job)
 918                         put_job(td);
 919                 else {
 920                         ret = add_job(td, td->o.name ?: "fio", 0);
 921                         if (ret)
 922                                 put_job(td);
 923                 }
 924         }
 925
 926         while (optind < argc) {
 927                 ini_idx++;
 928                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
 929                 ini_file[ini_idx - 1] = strdup(argv[optind]);
 930                 optind++;
 931         }
 932
 933         return ini_idx;
 934 }
 935
 936
 937 int parse_options(int argc, char *argv[])
 938 {
 939         int job_files, i;
 940
 941         f_out = stdout;
 942         f_err = stderr;
 943
 944         fio_options_dup_and_init(long_options);
 945
 946         if (setup_thread_area())
 947                 return 1;
 948         if (fill_def_thread())
 949                 return 1;
 950
 951         job_files = parse_cmd_line(argc, argv);
 952
 953         for (i = 0; i < job_files; i++) {
 954                 if (fill_def_thread())
 955                         return 1;
 956                 if (parse_jobs_ini(ini_file[i], i))
 957                         return 1;
 958                 free(ini_file[i]);
 959         }
 960
 961         free(ini_file);
 962         options_mem_free(&def_thread);
 963
 964         if (!thread_number) {
 965                 if (dump_cmdline)
 966                         return 0;
 967
 968                 log_err("No jobs defined(s)\n");
 969                 usage(argv[0]);
 970                 return 1;
 971         }
 972
 973         return 0;
 974 }