Use strict matching for --section command line option
[fio.git] / init.c
CommitLineData
906c8d75 1/*
cb2c86fd 2 * This file contains job initialization and setup functions.
906c8d75 3 */
ebac4655
JA
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>
b4692828 11#include <getopt.h>
ebac4655
JA
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"
cb2c86fd 18#include "parse.h"
2e5cdb11 19#include "smalloc.h"
380065aa 20#include "filehash.h"
ebac4655 21
112b52d9 22static char fio_version_string[] = "fio 1.24";
214e1eca 23
ee738499 24#define FIO_RANDSEED (0xb1899bedUL)
ebac4655 25
214e1eca
JA
26static char **ini_file;
27static int max_jobs = MAX_JOBS;
cca73aa7 28static int dump_cmdline;
e1f36503 29
be4ecfdf 30static struct thread_data def_thread;
214e1eca 31struct thread_data *threads = NULL;
e1f36503 32
214e1eca
JA
33int exitall_on_terminate = 0;
34int terse_output = 0;
e592a06b 35int eta_print;
214e1eca
JA
36unsigned long long mlock_size = 0;
37FILE *f_out = NULL;
38FILE *f_err = NULL;
01f06b63 39char *job_section = NULL;
ee738499 40
214e1eca 41int write_bw_log = 0;
4241ea8f 42int read_only = 0;
214e1eca 43
5ec10eaa
JA
44static int def_timeout;
45static int write_lat_log;
e1f36503 46
214e1eca 47static int prev_group_jobs;
b4692828 48
ee56ad50 49unsigned long fio_debug = 0;
5e1d306e
JA
50unsigned int fio_debug_jobno = -1;
51unsigned int *fio_debug_jobp = NULL;
ee56ad50 52
b4692828
JA
53/*
54 * Command line options. These will contain the above, plus a few
55 * extra that only pertain to fio itself and not jobs.
56 */
5ec10eaa 57static struct option l_opts[FIO_NR_OPTIONS] = {
b4692828
JA
58 {
59 .name = "output",
60 .has_arg = required_argument,
61 .val = 'o',
62 },
63 {
64 .name = "timeout",
65 .has_arg = required_argument,
66 .val = 't',
67 },
68 {
69 .name = "latency-log",
70 .has_arg = required_argument,
71 .val = 'l',
72 },
73 {
74 .name = "bandwidth-log",
75 .has_arg = required_argument,
76 .val = 'b',
77 },
78 {
79 .name = "minimal",
80 .has_arg = optional_argument,
81 .val = 'm',
82 },
83 {
84 .name = "version",
85 .has_arg = no_argument,
86 .val = 'v',
87 },
fd28ca49
JA
88 {
89 .name = "help",
90 .has_arg = no_argument,
91 .val = 'h',
92 },
93 {
94 .name = "cmdhelp",
320beefe 95 .has_arg = optional_argument,
fd28ca49
JA
96 .val = 'c',
97 },
cca73aa7
JA
98 {
99 .name = "showcmd",
100 .has_arg = no_argument,
724e4435
JA
101 .val = 's',
102 },
103 {
104 .name = "readonly",
105 .has_arg = no_argument,
106 .val = 'r',
cca73aa7 107 },
e592a06b
AC
108 {
109 .name = "eta",
110 .has_arg = required_argument,
111 .val = 'e',
112 },
ee56ad50
JA
113 {
114 .name = "debug",
115 .has_arg = required_argument,
116 .val = 'd',
117 },
01f06b63
JA
118 {
119 .name = "section",
120 .has_arg = required_argument,
121 .val = 'x',
122 },
2b386d25
JA
123 {
124 .name = "alloc-size",
125 .has_arg = required_argument,
126 .val = 'a',
127 },
b4692828
JA
128 {
129 .name = NULL,
130 },
131};
132
9728ce37
JB
133FILE *get_f_out()
134{
135 return f_out;
136}
137
138FILE *get_f_err()
139{
140 return f_err;
141}
142
906c8d75
JA
143/*
144 * Return a free job structure.
145 */
ebac4655
JA
146static struct thread_data *get_new_job(int global, struct thread_data *parent)
147{
148 struct thread_data *td;
149
150 if (global)
151 return &def_thread;
152 if (thread_number >= max_jobs)
153 return NULL;
154
155 td = &threads[thread_number++];
ddaeaa5a 156 *td = *parent;
ebac4655 157
cade3ef4 158 dup_files(td, parent);
d23bb327 159 options_mem_dupe(td);
cade3ef4 160
ebac4655 161 td->thread_number = thread_number;
ebac4655
JA
162 return td;
163}
164
165static void put_job(struct thread_data *td)
166{
549577a7
JA
167 if (td == &def_thread)
168 return;
169
16edf25d 170 if (td->error)
6d86144d 171 log_info("fio: %s\n", td->verror);
16edf25d 172
ebac4655
JA
173 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
174 thread_number--;
175}
176
127f6865
JA
177static int setup_rate(struct thread_data *td)
178{
179 unsigned long nr_reads_per_msec;
180 unsigned long long rate;
181 unsigned int bs;
182
2dc1bbeb 183 if (!td->o.rate && !td->o.rate_iops)
127f6865
JA
184 return 0;
185
186 if (td_rw(td))
2dc1bbeb 187 bs = td->o.rw_min_bs;
127f6865 188 else if (td_read(td))
2dc1bbeb 189 bs = td->o.min_bs[DDIR_READ];
127f6865 190 else
2dc1bbeb 191 bs = td->o.min_bs[DDIR_WRITE];
127f6865 192
2dc1bbeb
JA
193 if (td->o.rate) {
194 rate = td->o.rate;
127f6865
JA
195 nr_reads_per_msec = (rate * 1024 * 1000LL) / bs;
196 } else
2dc1bbeb 197 nr_reads_per_msec = td->o.rate_iops * 1000UL;
127f6865
JA
198
199 if (!nr_reads_per_msec) {
200 log_err("rate lower than supported\n");
201 return -1;
202 }
203
204 td->rate_usec_cycle = 1000000000ULL / nr_reads_per_msec;
205 td->rate_pending_usleep = 0;
206 return 0;
207}
208
8347239a
JA
209static int fixed_block_size(struct thread_options *o)
210{
211 return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
212 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
213 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE];
214}
215
dad915e3
JA
216/*
217 * Lazy way of fixing up options that depend on each other. We could also
218 * define option callback handlers, but this is easier.
219 */
4e991c23 220static int fixup_options(struct thread_data *td)
e1f36503 221{
2dc1bbeb 222 struct thread_options *o = &td->o;
dad915e3 223
f356d01d
JA
224#ifndef FIO_HAVE_PSHARED_MUTEX
225 if (!td->o.use_thread) {
226 log_info("fio: this platform does not support process shared"
227 " mutexes, forcing use of threads. Use the 'thread'"
228 " option to get rid of this warning.\n");
229 td->o.use_thread = 1;
230 }
231#endif
232
be4ecfdf
JA
233#ifndef FIO_HAVE_CPU_AFFINITY
234 if (td->o.gtod_cpu) {
235 log_err("fio: platform must support CPU affinity for"
236 "gettimeofday() offloading\n");
237 return 1;
238 }
239#endif
240
724e4435 241 if (read_only && td_write(td)) {
5ec10eaa
JA
242 log_err("fio: job <%s> has write bit set, but fio is in"
243 " read-only mode\n", td->o.name);
724e4435
JA
244 return 1;
245 }
5ec10eaa 246
2dc1bbeb 247 if (o->write_iolog_file && o->read_iolog_file) {
076efc7c 248 log_err("fio: read iolog overrides write_iolog\n");
2dc1bbeb
JA
249 free(o->write_iolog_file);
250 o->write_iolog_file = NULL;
076efc7c 251 }
16b462ae 252
16b462ae
JA
253 /*
254 * only really works for sequential io for now, and with 1 file
255 */
2dc1bbeb
JA
256 if (o->zone_size && td_random(td) && o->open_files == 1)
257 o->zone_size = 0;
16b462ae
JA
258
259 /*
260 * Reads can do overwrites, we always need to pre-create the file
261 */
262 if (td_read(td) || td_rw(td))
2dc1bbeb 263 o->overwrite = 1;
16b462ae 264
2dc1bbeb 265 if (!o->min_bs[DDIR_READ])
5ec10eaa 266 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
2dc1bbeb
JA
267 if (!o->max_bs[DDIR_READ])
268 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
269 if (!o->min_bs[DDIR_WRITE])
5ec10eaa 270 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
2dc1bbeb
JA
271 if (!o->max_bs[DDIR_WRITE])
272 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
a00735e6 273
2dc1bbeb 274 o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
a00735e6 275
2dc1bbeb
JA
276 if (!o->file_size_high)
277 o->file_size_high = o->file_size_low;
9c60ce64 278
8347239a
JA
279 if (o->norandommap && o->verify != VERIFY_NONE
280 && !fixed_block_size(o)) {
281 log_err("fio: norandommap given for variable block sizes, "
282 "verify disabled\n");
2dc1bbeb 283 o->verify = VERIFY_NONE;
bb8895e0 284 }
2dc1bbeb 285 if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
690adba3 286 log_err("fio: bs_unaligned may not work with raw io\n");
e0a22335 287
48097d5c
JA
288 /*
289 * thinktime_spin must be less than thinktime
290 */
2dc1bbeb
JA
291 if (o->thinktime_spin > o->thinktime)
292 o->thinktime_spin = o->thinktime;
e916b390
JA
293
294 /*
295 * The low water mark cannot be bigger than the iodepth
296 */
2dc1bbeb 297 if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
9467b77c
JA
298 /*
299 * syslet work around - if the workload is sequential,
300 * we want to let the queue drain all the way down to
301 * avoid seeking between async threads
302 */
303 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
2dc1bbeb 304 o->iodepth_low = 1;
9467b77c 305 else
2dc1bbeb 306 o->iodepth_low = o->iodepth;
9467b77c 307 }
cb5ab512
JA
308
309 /*
310 * If batch number isn't set, default to the same as iodepth
311 */
2dc1bbeb
JA
312 if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
313 o->iodepth_batch = o->iodepth;
b5af8293 314
2dc1bbeb
JA
315 if (o->nr_files > td->files_index)
316 o->nr_files = td->files_index;
9f9214f2 317
2dc1bbeb
JA
318 if (o->open_files > o->nr_files || !o->open_files)
319 o->open_files = o->nr_files;
4e991c23 320
2dc1bbeb 321 if ((o->rate && o->rate_iops) || (o->ratemin && o->rate_iops_min)) {
4e991c23
JA
322 log_err("fio: rate and rate_iops are mutually exclusive\n");
323 return 1;
324 }
2dc1bbeb 325 if ((o->rate < o->ratemin) || (o->rate_iops < o->rate_iops_min)) {
4e991c23
JA
326 log_err("fio: minimum rate exceeds rate\n");
327 return 1;
328 }
329
cf4464ca
JA
330 if (!o->timeout && o->time_based) {
331 log_err("fio: time_based requires a runtime/timeout setting\n");
332 o->time_based = 0;
333 }
334
aa31f1f1 335 if (o->fill_device && !o->size)
5921e80c 336 o->size = -1ULL;
5ec10eaa 337
79713149
JA
338 if (td_rw(td) && td->o.verify != VERIFY_NONE)
339 log_info("fio: mixed read/write workload with verify. May not "
340 "work as expected, unless you pre-populated the file\n");
aa31f1f1 341
41ccd845
JA
342 if (td->o.verify != VERIFY_NONE)
343 td->o.refill_buffers = 1;
344
4e991c23 345 return 0;
e1f36503
JA
346}
347
f8977ee6
JA
348/*
349 * This function leaks the buffer
350 */
351static char *to_kmg(unsigned int val)
352{
353 char *buf = malloc(32);
f3502ba2 354 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
f8977ee6
JA
355 char *p = post;
356
245142ff 357 do {
f8977ee6
JA
358 if (val & 1023)
359 break;
360
361 val >>= 10;
362 p++;
245142ff 363 } while (*p);
f8977ee6
JA
364
365 snprintf(buf, 31, "%u%c", val, *p);
366 return buf;
367}
368
09629a90
JA
369/* External engines are specified by "external:name.o") */
370static const char *get_engine_name(const char *str)
371{
372 char *p = strstr(str, ":");
373
374 if (!p)
375 return str;
376
377 p++;
378 strip_blank_front(&p);
379 strip_blank_end(p);
380 return p;
381}
382
e132cbae
JA
383static int exists_and_not_file(const char *filename)
384{
385 struct stat sb;
386
387 if (lstat(filename, &sb) == -1)
388 return 0;
389
390 if (S_ISREG(sb.st_mode))
391 return 0;
392
393 return 1;
394}
395
9c60ce64
JA
396/*
397 * Initialize the various random states we need (random io, block size ranges,
398 * read/write mix, etc).
399 */
400static int init_random_state(struct thread_data *td)
401{
402 unsigned long seeds[6];
68727076 403 int fd;
9c60ce64
JA
404
405 fd = open("/dev/urandom", O_RDONLY);
406 if (fd == -1) {
407 td_verror(td, errno, "open");
408 return 1;
409 }
410
411 if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
412 td_verror(td, EIO, "read");
413 close(fd);
414 return 1;
415 }
416
417 close(fd);
418
419 os_random_seed(seeds[0], &td->bsrange_state);
420 os_random_seed(seeds[1], &td->verify_state);
421 os_random_seed(seeds[2], &td->rwmix_state);
422
2dc1bbeb 423 if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
9c60ce64
JA
424 os_random_seed(seeds[3], &td->next_file_state);
425
426 os_random_seed(seeds[5], &td->file_size_state);
427
428 if (!td_random(td))
429 return 0;
430
2dc1bbeb 431 if (td->o.rand_repeatable)
9c60ce64
JA
432 seeds[4] = FIO_RANDSEED * td->thread_number;
433
9c60ce64
JA
434 os_random_seed(seeds[4], &td->random_state);
435 return 0;
436}
437
906c8d75
JA
438/*
439 * Adds a job to the list of things todo. Sanitizes the various options
440 * to make sure we don't have conflicts, and initializes various
441 * members of td.
442 */
75154845 443static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
ebac4655 444{
413dd459
JA
445 const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
446 "randread", "randwrite", "randrw" };
af52b345 447 unsigned int i;
09629a90 448 const char *engine;
af52b345 449 char fname[PATH_MAX];
e132cbae 450 int numjobs, file_alloced;
ebac4655 451
ebac4655
JA
452 /*
453 * the def_thread is just for options, it's not a real job
454 */
455 if (td == &def_thread)
456 return 0;
457
cca73aa7
JA
458 /*
459 * if we are just dumping the output command line, don't add the job
460 */
461 if (dump_cmdline) {
462 put_job(td);
463 return 0;
464 }
465
2dc1bbeb 466 engine = get_engine_name(td->o.ioengine);
09629a90
JA
467 td->io_ops = load_ioengine(td, engine);
468 if (!td->io_ops) {
469 log_err("fio: failed to load engine %s\n", engine);
205927a3 470 goto err;
09629a90 471 }
df64119d 472
2dc1bbeb 473 if (td->o.use_thread)
9cedf167
JA
474 nr_thread++;
475 else
476 nr_process++;
477
2dc1bbeb 478 if (td->o.odirect)
690adba3
JA
479 td->io_ops->flags |= FIO_RAWIO;
480
e132cbae 481 file_alloced = 0;
691c8fb0 482 if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
e132cbae 483 file_alloced = 1;
80be24f4 484
2dc1bbeb 485 if (td->o.nr_files == 1 && exists_and_not_file(jobname))
e132cbae 486 add_file(td, jobname);
7b05a215 487 else {
2dc1bbeb 488 for (i = 0; i < td->o.nr_files; i++) {
5ec10eaa
JA
489 sprintf(fname, "%s.%d.%d", jobname,
490 td->thread_number, i);
7b05a215
JA
491 add_file(td, fname);
492 }
af52b345 493 }
0af7b542 494 }
ebac4655 495
4e991c23
JA
496 if (fixup_options(td))
497 goto err;
e0a22335 498
07eb79df
JA
499 if (td->io_ops->flags & FIO_DISKLESSIO) {
500 struct fio_file *f;
501
502 for_each_file(td, f, i)
503 f->real_file_size = -1ULL;
504 }
505
cdd18ad8 506 td->mutex = fio_mutex_init(0);
ebac4655 507
756867bd
JA
508 td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
509 td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
510 td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
1e3d53ac 511 td->ddir_nr = td->o.ddir_nr;
ebac4655 512
b3d62a75
JA
513 if ((td->o.stonewall || td->o.numjobs > 1 || td->o.new_group)
514 && prev_group_jobs) {
3c5df6fa 515 prev_group_jobs = 0;
ebac4655 516 groupid++;
3c5df6fa 517 }
ebac4655
JA
518
519 td->groupid = groupid;
3c5df6fa 520 prev_group_jobs++;
ebac4655 521
9c60ce64
JA
522 if (init_random_state(td))
523 goto err;
524
ebac4655
JA
525 if (setup_rate(td))
526 goto err;
527
2dc1bbeb 528 if (td->o.write_lat_log) {
756867bd
JA
529 setup_log(&td->ts.slat_log);
530 setup_log(&td->ts.clat_log);
ebac4655 531 }
2dc1bbeb 532 if (td->o.write_bw_log)
756867bd 533 setup_log(&td->ts.bw_log);
ebac4655 534
2dc1bbeb
JA
535 if (!td->o.name)
536 td->o.name = strdup(jobname);
01452055 537
c6ae0a5b 538 if (!terse_output) {
b990b5c0 539 if (!job_add_num) {
5ec10eaa
JA
540 if (!strcmp(td->io_ops->name, "cpuio")) {
541 log_info("%s: ioengine=cpu, cpuload=%u,"
542 " cpucycle=%u\n", td->o.name,
543 td->o.cpuload,
544 td->o.cpucycle);
545 } else {
f8977ee6
JA
546 char *c1, *c2, *c3, *c4;
547
2dc1bbeb
JA
548 c1 = to_kmg(td->o.min_bs[DDIR_READ]);
549 c2 = to_kmg(td->o.max_bs[DDIR_READ]);
550 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
551 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
f8977ee6 552
5ec10eaa
JA
553 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s,"
554 " ioengine=%s, iodepth=%u\n",
555 td->o.name, td->groupid,
556 ddir_str[td->o.td_ddir],
557 c1, c2, c3, c4,
558 td->io_ops->name,
559 td->o.iodepth);
f8977ee6
JA
560
561 free(c1);
562 free(c2);
563 free(c3);
564 free(c4);
565 }
b990b5c0 566 } else if (job_add_num == 1)
6d86144d 567 log_info("...\n");
c6ae0a5b 568 }
ebac4655
JA
569
570 /*
571 * recurse add identical jobs, clear numjobs and stonewall options
572 * as they don't apply to sub-jobs
573 */
2dc1bbeb 574 numjobs = td->o.numjobs;
ebac4655
JA
575 while (--numjobs) {
576 struct thread_data *td_new = get_new_job(0, td);
577
578 if (!td_new)
579 goto err;
580
2dc1bbeb
JA
581 td_new->o.numjobs = 1;
582 td_new->o.stonewall = 0;
92c1d41f 583 td_new->o.new_group = 0;
e132cbae
JA
584
585 if (file_alloced) {
2dc1bbeb 586 td_new->o.filename = NULL;
e132cbae 587 td_new->files_index = 0;
4e6ea2f1 588 td_new->files_size = 0;
e132cbae
JA
589 td_new->files = NULL;
590 }
591
75154845 592 job_add_num = numjobs - 1;
ebac4655 593
75154845 594 if (add_job(td_new, jobname, job_add_num))
ebac4655
JA
595 goto err;
596 }
3c5df6fa 597
ebac4655
JA
598 return 0;
599err:
600 put_job(td);
601 return -1;
602}
603
01f06b63
JA
604static int skip_this_section(const char *name)
605{
606 if (!job_section)
607 return 0;
608 if (!strncmp(name, "global", 6))
609 return 0;
610
b36beb6e 611 return strcmp(job_section, name);
01f06b63
JA
612}
613
ebac4655
JA
614static int is_empty_or_comment(char *line)
615{
616 unsigned int i;
617
618 for (i = 0; i < strlen(line); i++) {
619 if (line[i] == ';')
620 return 1;
5cc2da30
IM
621 if (line[i] == '#')
622 return 1;
ebac4655
JA
623 if (!isspace(line[i]) && !iscntrl(line[i]))
624 return 0;
625 }
626
627 return 1;
628}
629
07261983
JA
630/*
631 * This is our [ini] type file parser.
632 */
1e97cce9 633static int parse_jobs_ini(char *file, int stonewall_flag)
ebac4655 634{
e1f36503 635 unsigned int global;
ebac4655 636 struct thread_data *td;
fee3bb48 637 char *string, *name;
ebac4655
JA
638 FILE *f;
639 char *p;
0c7e37a0 640 int ret = 0, stonewall;
097b2991 641 int first_sect = 1;
ccf8f127 642 int skip_fgets = 0;
01f06b63 643 int inside_skip = 0;
3b8b7135
JA
644 char **opts;
645 int i, alloc_opts, num_opts;
ebac4655 646
5a729cbe
AC
647 if (!strcmp(file, "-"))
648 f = stdin;
649 else
650 f = fopen(file, "r");
651
ebac4655 652 if (!f) {
aea47d44 653 perror("fopen job file");
ebac4655
JA
654 return 1;
655 }
656
657 string = malloc(4096);
7f7e6e59
JA
658
659 /*
660 * it's really 256 + small bit, 280 should suffice
661 */
662 name = malloc(280);
663 memset(name, 0, 280);
ebac4655 664
3b8b7135
JA
665 alloc_opts = 8;
666 opts = malloc(sizeof(char *) * alloc_opts);
b7c6302d 667 num_opts = 0;
3b8b7135 668
0c7e37a0 669 stonewall = stonewall_flag;
7c124ac1 670 do {
ccf8f127
JA
671 /*
672 * if skip_fgets is set, we already have loaded a line we
673 * haven't handled.
674 */
675 if (!skip_fgets) {
676 p = fgets(string, 4095, f);
677 if (!p)
678 break;
679 }
cdc7f193 680
ccf8f127 681 skip_fgets = 0;
cdc7f193 682 strip_blank_front(&p);
6c7c7da1 683 strip_blank_end(p);
cdc7f193 684
ebac4655
JA
685 if (is_empty_or_comment(p))
686 continue;
6c7c7da1 687 if (sscanf(p, "[%255s]", name) != 1) {
01f06b63
JA
688 if (inside_skip)
689 continue;
5ec10eaa
JA
690 log_err("fio: option <%s> outside of [] job section\n",
691 p);
088b4207 692 break;
6c7c7da1 693 }
ebac4655 694
01f06b63
JA
695 if (skip_this_section(name)) {
696 inside_skip = 1;
697 continue;
698 } else
699 inside_skip = 0;
700
ebac4655
JA
701 global = !strncmp(name, "global", 6);
702
703 name[strlen(name) - 1] = '\0';
704
cca73aa7 705 if (dump_cmdline) {
097b2991
JA
706 if (first_sect)
707 log_info("fio ");
cca73aa7
JA
708 if (!global)
709 log_info("--name=%s ", name);
097b2991 710 first_sect = 0;
cca73aa7
JA
711 }
712
ebac4655 713 td = get_new_job(global, &def_thread);
45410acb
JA
714 if (!td) {
715 ret = 1;
716 break;
717 }
ebac4655 718
972cfd25
JA
719 /*
720 * Seperate multiple job files by a stonewall
721 */
f9481919 722 if (!global && stonewall) {
2dc1bbeb 723 td->o.stonewall = stonewall;
972cfd25
JA
724 stonewall = 0;
725 }
726
3b8b7135
JA
727 num_opts = 0;
728 memset(opts, 0, alloc_opts * sizeof(char *));
729
ebac4655
JA
730 while ((p = fgets(string, 4096, f)) != NULL) {
731 if (is_empty_or_comment(p))
732 continue;
e1f36503 733
b6754f9d 734 strip_blank_front(&p);
7c124ac1 735
ccf8f127
JA
736 /*
737 * new section, break out and make sure we don't
738 * fgets() a new line at the top.
739 */
740 if (p[0] == '[') {
741 skip_fgets = 1;
7c124ac1 742 break;
ccf8f127 743 }
7c124ac1 744
4ae3f763 745 strip_blank_end(p);
aea47d44 746
3b8b7135
JA
747 if (num_opts == alloc_opts) {
748 alloc_opts <<= 1;
749 opts = realloc(opts,
750 alloc_opts * sizeof(char *));
751 }
752
753 opts[num_opts] = strdup(p);
754 num_opts++;
ebac4655 755 }
ebac4655 756
3b8b7135
JA
757 ret = fio_options_parse(td, opts, num_opts);
758 if (!ret) {
759 if (dump_cmdline)
760 for (i = 0; i < num_opts; i++)
761 log_info("--%s ", opts[i]);
762
45410acb 763 ret = add_job(td, name, 0);
3b8b7135 764 } else {
b1508cf9
JA
765 log_err("fio: job %s dropped\n", name);
766 put_job(td);
45410acb 767 }
3b8b7135
JA
768
769 for (i = 0; i < num_opts; i++)
770 free(opts[i]);
771 num_opts = 0;
7c124ac1 772 } while (!ret);
ebac4655 773
cca73aa7
JA
774 if (dump_cmdline)
775 log_info("\n");
776
3b8b7135
JA
777 for (i = 0; i < num_opts; i++)
778 free(opts[i]);
779
ebac4655
JA
780 free(string);
781 free(name);
2577594d 782 free(opts);
5a729cbe
AC
783 if (f != stdin)
784 fclose(f);
45410acb 785 return ret;
ebac4655
JA
786}
787
788static int fill_def_thread(void)
789{
790 memset(&def_thread, 0, sizeof(def_thread));
791
375b2695 792 fio_getaffinity(getpid(), &def_thread.o.cpumask);
ebac4655
JA
793
794 /*
ee738499 795 * fill default options
ebac4655 796 */
214e1eca 797 fio_fill_default_options(&def_thread);
ee738499 798
2dc1bbeb
JA
799 def_thread.o.timeout = def_timeout;
800 def_thread.o.write_bw_log = write_bw_log;
801 def_thread.o.write_lat_log = write_lat_log;
ee738499 802
ebac4655
JA
803 return 0;
804}
805
214e1eca
JA
806static void free_shm(void)
807{
808 struct shmid_ds sbuf;
809
810 if (threads) {
5e1d306e
JA
811 void *tp = threads;
812
214e1eca 813 threads = NULL;
5e1d306e
JA
814 file_hash_exit();
815 fio_debug_jobp = NULL;
816 shmdt(tp);
214e1eca
JA
817 shmctl(shm_id, IPC_RMID, &sbuf);
818 }
2e5cdb11
JA
819
820 scleanup();
214e1eca
JA
821}
822
823/*
824 * The thread area is shared between the main process and the job
825 * threads/processes. So setup a shared memory segment that will hold
380065aa
JA
826 * all the job info. We use the end of the region for keeping track of
827 * open files across jobs, for file sharing.
214e1eca
JA
828 */
829static int setup_thread_area(void)
830{
380065aa
JA
831 void *hash;
832
214e1eca
JA
833 /*
834 * 1024 is too much on some machines, scale max_jobs if
835 * we get a failure that looks like too large a shm segment
836 */
837 do {
838 size_t size = max_jobs * sizeof(struct thread_data);
839
380065aa 840 size += file_hash_size;
5e1d306e 841 size += sizeof(unsigned int);
380065aa 842
214e1eca
JA
843 shm_id = shmget(0, size, IPC_CREAT | 0600);
844 if (shm_id != -1)
845 break;
846 if (errno != EINVAL) {
847 perror("shmget");
848 break;
849 }
850
851 max_jobs >>= 1;
852 } while (max_jobs);
853
854 if (shm_id == -1)
855 return 1;
856
857 threads = shmat(shm_id, NULL, 0);
858 if (threads == (void *) -1) {
859 perror("shmat");
860 return 1;
861 }
862
1f809d15 863 memset(threads, 0, max_jobs * sizeof(struct thread_data));
380065aa 864 hash = (void *) threads + max_jobs * sizeof(struct thread_data);
5e1d306e
JA
865 fio_debug_jobp = (void *) hash + file_hash_size;
866 *fio_debug_jobp = -1;
380065aa 867 file_hash_init(hash);
214e1eca
JA
868 atexit(free_shm);
869 return 0;
870}
871
45378b35 872static void usage(const char *name)
4785f995
JA
873{
874 printf("%s\n", fio_version_string);
45378b35 875 printf("%s [options] [job options] <job file(s)>\n", name);
ee56ad50 876 printf("\t--debug=options\tEnable debug logging\n");
b4692828
JA
877 printf("\t--output\tWrite output to file\n");
878 printf("\t--timeout\tRuntime in seconds\n");
879 printf("\t--latency-log\tGenerate per-job latency logs\n");
880 printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
881 printf("\t--minimal\tMinimal (terse) output\n");
882 printf("\t--version\tPrint version info and exit\n");
fd28ca49 883 printf("\t--help\t\tPrint this page\n");
5ec10eaa
JA
884 printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of"
885 " them\n");
cca73aa7 886 printf("\t--showcmd\tTurn a job file into command line options\n");
e592a06b
AC
887 printf("\t--eta=when\tWhen ETA estimate should be printed\n");
888 printf("\t \tMay be \"always\", \"never\" or \"auto\"\n");
5ec10eaa
JA
889 printf("\t--readonly\tTurn on safety read-only checks, preventing"
890 " writes\n");
01f06b63 891 printf("\t--section=name\tOnly run specified section in job file\n");
2b386d25
JA
892 printf("\t--alloc-size=kb\tSet smalloc pool to this size in kb"
893 " (def 1024)\n");
4785f995
JA
894}
895
79e48f72 896#ifdef FIO_INC_DEBUG
ee56ad50 897struct debug_level debug_levels[] = {
bd6f78b2
JA
898 { .name = "process", .shift = FD_PROCESS, },
899 { .name = "file", .shift = FD_FILE, },
900 { .name = "io", .shift = FD_IO, },
901 { .name = "mem", .shift = FD_MEM, },
902 { .name = "blktrace", .shift = FD_BLKTRACE },
903 { .name = "verify", .shift = FD_VERIFY },
84422acd 904 { .name = "random", .shift = FD_RANDOM },
a3d741fa 905 { .name = "parse", .shift = FD_PARSE },
cd991b9e 906 { .name = "diskutil", .shift = FD_DISKUTIL },
5e1d306e 907 { .name = "job", .shift = FD_JOB },
29adda3c 908 { .name = "mutex", .shift = FD_MUTEX },
02444ad1 909 { .name = NULL, },
ee56ad50
JA
910};
911
c09823ab 912static int set_debug(const char *string)
ee56ad50
JA
913{
914 struct debug_level *dl;
915 char *p = (char *) string;
916 char *opt;
917 int i;
918
919 if (!strcmp(string, "?") || !strcmp(string, "help")) {
920 int i;
921
922 log_info("fio: dumping debug options:");
923 for (i = 0; debug_levels[i].name; i++) {
924 dl = &debug_levels[i];
925 log_info("%s,", dl->name);
926 }
bd6f78b2 927 log_info("all\n");
c09823ab 928 return 1;
ee56ad50
JA
929 }
930
931 while ((opt = strsep(&p, ",")) != NULL) {
932 int found = 0;
933
5e1d306e
JA
934 if (!strncmp(opt, "all", 3)) {
935 log_info("fio: set all debug options\n");
936 fio_debug = ~0UL;
937 continue;
938 }
939
ee56ad50
JA
940 for (i = 0; debug_levels[i].name; i++) {
941 dl = &debug_levels[i];
5e1d306e
JA
942 found = !strncmp(opt, dl->name, strlen(dl->name));
943 if (!found)
944 continue;
945
946 if (dl->shift == FD_JOB) {
947 opt = strchr(opt, ':');
948 if (!opt) {
949 log_err("fio: missing job number\n");
950 break;
951 }
952 opt++;
953 fio_debug_jobno = atoi(opt);
954 log_info("fio: set debug jobno %d\n",
955 fio_debug_jobno);
956 } else {
ee56ad50 957 log_info("fio: set debug option %s\n", opt);
bd6f78b2 958 fio_debug |= (1UL << dl->shift);
ee56ad50 959 }
5e1d306e 960 break;
ee56ad50
JA
961 }
962
963 if (!found)
964 log_err("fio: debug mask %s not found\n", opt);
965 }
c09823ab 966 return 0;
ee56ad50 967}
79e48f72 968#else
69b98d4c 969static int set_debug(const char *string)
79e48f72
JA
970{
971 log_err("fio: debug tracing not included in build\n");
c09823ab 972 return 1;
79e48f72
JA
973}
974#endif
ee56ad50 975
972cfd25 976static int parse_cmd_line(int argc, char *argv[])
ebac4655 977{
b4692828 978 struct thread_data *td = NULL;
c09823ab 979 int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
ebac4655 980
5ec10eaa 981 while ((c = getopt_long_only(argc, argv, "", l_opts, &lidx)) != -1) {
ebac4655 982 switch (c) {
2b386d25
JA
983 case 'a':
984 smalloc_pool_size = atoi(optarg);
985 break;
b4692828
JA
986 case 't':
987 def_timeout = atoi(optarg);
988 break;
989 case 'l':
990 write_lat_log = 1;
991 break;
992 case 'w':
993 write_bw_log = 1;
994 break;
995 case 'o':
996 f_out = fopen(optarg, "w+");
997 if (!f_out) {
998 perror("fopen output");
999 exit(1);
1000 }
1001 f_err = f_out;
1002 break;
1003 case 'm':
1004 terse_output = 1;
1005 break;
1006 case 'h':
45378b35 1007 usage(argv[0]);
b4692828 1008 exit(0);
fd28ca49 1009 case 'c':
214e1eca 1010 exit(fio_show_option_help(optarg));
cca73aa7
JA
1011 case 's':
1012 dump_cmdline = 1;
1013 break;
724e4435
JA
1014 case 'r':
1015 read_only = 1;
1016 break;
b4692828
JA
1017 case 'v':
1018 printf("%s\n", fio_version_string);
1019 exit(0);
e592a06b
AC
1020 case 'e':
1021 if (!strcmp("always", optarg))
1022 eta_print = FIO_ETA_ALWAYS;
1023 else if (!strcmp("never", optarg))
1024 eta_print = FIO_ETA_NEVER;
1025 break;
ee56ad50 1026 case 'd':
c09823ab
JA
1027 if (set_debug(optarg))
1028 do_exit++;
ee56ad50 1029 break;
01f06b63
JA
1030 case 'x':
1031 if (!strcmp(optarg, "global")) {
5ec10eaa
JA
1032 log_err("fio: can't use global as only "
1033 "section\n");
c09823ab
JA
1034 do_exit++;
1035 exit_val = 1;
01f06b63
JA
1036 break;
1037 }
1038 if (job_section)
1039 free(job_section);
1040 job_section = strdup(optarg);
1041 break;
b4692828 1042 case FIO_GETOPT_JOB: {
5ec10eaa 1043 const char *opt = l_opts[lidx].name;
b4692828
JA
1044 char *val = optarg;
1045
c2b1e753 1046 if (!strncmp(opt, "name", 4) && td) {
2dc1bbeb 1047 ret = add_job(td, td->o.name ?: "fio", 0);
c2b1e753
JA
1048 if (ret) {
1049 put_job(td);
1050 return 0;
1051 }
1052 td = NULL;
1053 }
b4692828 1054 if (!td) {
01f06b63 1055 int is_section = !strncmp(opt, "name", 4);
3106f220
JA
1056 int global = 0;
1057
01f06b63 1058 if (!is_section || !strncmp(val, "global", 6))
3106f220 1059 global = 1;
c2b1e753 1060
01f06b63
JA
1061 if (is_section && skip_this_section(val))
1062 continue;
1063
c2b1e753 1064 td = get_new_job(global, &def_thread);
b4692828
JA
1065 if (!td)
1066 return 0;
1067 }
38d0adb0 1068
214e1eca 1069 ret = fio_cmd_option_parse(td, opt, val);
b4692828
JA
1070 break;
1071 }
1072 default:
c09823ab
JA
1073 do_exit++;
1074 exit_val = 1;
b4692828 1075 break;
ebac4655
JA
1076 }
1077 }
c9fad893 1078
c09823ab
JA
1079 if (do_exit)
1080 exit(exit_val);
536582bf 1081
b4692828 1082 if (td) {
7d6a8904 1083 if (!ret)
2dc1bbeb 1084 ret = add_job(td, td->o.name ?: "fio", 0);
7d6a8904
JA
1085 if (ret)
1086 put_job(td);
972cfd25 1087 }
774a6177 1088
b4692828
JA
1089 while (optind < argc) {
1090 ini_idx++;
1091 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1092 ini_file[ini_idx - 1] = strdup(argv[optind]);
1093 optind++;
eb8bbf48 1094 }
972cfd25
JA
1095
1096 return ini_idx;
ebac4655
JA
1097}
1098
ebac4655
JA
1099int parse_options(int argc, char *argv[])
1100{
972cfd25
JA
1101 int job_files, i;
1102
b4692828
JA
1103 f_out = stdout;
1104 f_err = stderr;
1105
5ec10eaa 1106 fio_options_dup_and_init(l_opts);
b4692828 1107
ebac4655
JA
1108 if (setup_thread_area())
1109 return 1;
1110 if (fill_def_thread())
1111 return 1;
1112
972cfd25 1113 job_files = parse_cmd_line(argc, argv);
ebac4655 1114
972cfd25
JA
1115 for (i = 0; i < job_files; i++) {
1116 if (fill_def_thread())
1117 return 1;
0c7e37a0 1118 if (parse_jobs_ini(ini_file[i], i))
972cfd25 1119 return 1;
88c6ed80 1120 free(ini_file[i]);
972cfd25 1121 }
ebac4655 1122
88c6ed80 1123 free(ini_file);
d23bb327 1124 options_mem_free(&def_thread);
b4692828
JA
1125
1126 if (!thread_number) {
cca73aa7
JA
1127 if (dump_cmdline)
1128 return 0;
1129
b4692828 1130 log_err("No jobs defined(s)\n");
45378b35 1131 usage(argv[0]);
b4692828
JA
1132 return 1;
1133 }
1134
be4ecfdf
JA
1135 if (def_thread.o.gtod_offload) {
1136 fio_gtod_init();
1137 fio_gtod_offload = 1;
1138 fio_gtod_cpu = def_thread.o.gtod_cpu;
1139 }
1140
ebac4655
JA
1141 return 0;
1142}