Add regression test for 37cf9e3c
[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>
11#include <sys/ipc.h>
12#include <sys/shm.h>
13#include <sys/types.h>
14#include <sys/stat.h>
15
16#include "fio.h"
cb2c86fd 17#include "parse.h"
2e5cdb11 18#include "smalloc.h"
380065aa 19#include "filehash.h"
4f5af7b2 20#include "verify.h"
79d16311 21#include "profile.h"
50d16976 22#include "server.h"
ebac4655 23
bf2e821a
CC
24#include "lib/getopt.h"
25
89cf1480
JA
26#include "fio_version.h"
27
81179eec 28#if FIO_PATCH > 0
5e726d0a 29const char fio_version_string[] = __fio_stringify(FIO_MAJOR) "." \
81179eec
JA
30 __fio_stringify(FIO_MINOR) "." \
31 __fio_stringify(FIO_PATCH);
32#else
5e726d0a 33const char fio_version_string[] = __fio_stringify(FIO_MAJOR) "." \
81179eec
JA
34 __fio_stringify(FIO_MINOR);
35#endif
214e1eca 36
ee738499 37#define FIO_RANDSEED (0xb1899bedUL)
ebac4655 38
214e1eca 39static char **ini_file;
fca70358 40static int max_jobs = FIO_MAX_JOBS;
cca73aa7 41static int dump_cmdline;
8c029376 42static int def_timeout;
e1f36503 43
be4ecfdf 44static struct thread_data def_thread;
214e1eca 45struct thread_data *threads = NULL;
e1f36503 46
214e1eca
JA
47int exitall_on_terminate = 0;
48int terse_output = 0;
e592a06b 49int eta_print;
214e1eca
JA
50unsigned long long mlock_size = 0;
51FILE *f_out = NULL;
52FILE *f_err = NULL;
ad0a2735
JA
53char **job_sections = NULL;
54int nr_job_sections = 0;
07b3232d 55char *exec_profile = NULL;
a9523c6f 56int warnings_fatal = 0;
4d658652 57int terse_version = 3;
50d16976 58int is_backend = 0;
a37f69b7 59int nr_clients = 0;
e46d8091 60int log_syslog = 0;
ee738499 61
214e1eca 62int write_bw_log = 0;
4241ea8f 63int read_only = 0;
214e1eca 64
5ec10eaa 65static int write_lat_log;
e1f36503 66
214e1eca 67static int prev_group_jobs;
b4692828 68
ee56ad50 69unsigned long fio_debug = 0;
5e1d306e
JA
70unsigned int fio_debug_jobno = -1;
71unsigned int *fio_debug_jobp = NULL;
ee56ad50 72
4c6107ff 73static char cmd_optstr[256];
085399db 74static int did_arg;
4c6107ff 75
802ad4a8
JA
76const fio_fp64_t def_percentile_list[FIO_IO_U_LIST_MAX_LEN] = {
77 { .u.f = 1.0 },
78 { .u.f = 5.0 },
79 { .u.f = 10.0 },
80 { .u.f = 20.0 },
81 { .u.f = 30.0 },
82 { .u.f = 40.0 },
83 { .u.f = 50.0 },
84 { .u.f = 60.0 },
85 { .u.f = 70.0 },
86 { .u.f = 80.0 },
87 { .u.f = 90.0 },
88 { .u.f = 95.0 },
89 { .u.f = 99.0 },
90 { .u.f = 99.5 },
91 { .u.f = 99.9 },
92};
93
7a4b8240
JA
94#define FIO_CLIENT_FLAG (1 << 16)
95
b4692828
JA
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 */
5ec10eaa 100static struct option l_opts[FIO_NR_OPTIONS] = {
b4692828 101 {
08d2a19c 102 .name = (char *) "output",
b4692828 103 .has_arg = required_argument,
7a4b8240 104 .val = 'o' | FIO_CLIENT_FLAG,
b4692828
JA
105 },
106 {
08d2a19c 107 .name = (char *) "timeout",
b4692828 108 .has_arg = required_argument,
7a4b8240 109 .val = 't' | FIO_CLIENT_FLAG,
b4692828
JA
110 },
111 {
08d2a19c 112 .name = (char *) "latency-log",
b4692828 113 .has_arg = required_argument,
7a4b8240 114 .val = 'l' | FIO_CLIENT_FLAG,
b4692828
JA
115 },
116 {
08d2a19c 117 .name = (char *) "bandwidth-log",
b4692828 118 .has_arg = required_argument,
7a4b8240 119 .val = 'b' | FIO_CLIENT_FLAG,
b4692828
JA
120 },
121 {
08d2a19c 122 .name = (char *) "minimal",
b4692828 123 .has_arg = optional_argument,
7a4b8240 124 .val = 'm' | FIO_CLIENT_FLAG,
b4692828
JA
125 },
126 {
08d2a19c 127 .name = (char *) "version",
b4692828 128 .has_arg = no_argument,
7a4b8240 129 .val = 'v' | FIO_CLIENT_FLAG,
b4692828 130 },
fd28ca49 131 {
08d2a19c 132 .name = (char *) "help",
fd28ca49 133 .has_arg = no_argument,
7a4b8240 134 .val = 'h' | FIO_CLIENT_FLAG,
fd28ca49
JA
135 },
136 {
08d2a19c 137 .name = (char *) "cmdhelp",
320beefe 138 .has_arg = optional_argument,
7a4b8240 139 .val = 'c' | FIO_CLIENT_FLAG,
fd28ca49 140 },
de890a1e
SL
141 {
142 .name = (char *) "enghelp",
143 .has_arg = optional_argument,
144 .val = 'i' | FIO_CLIENT_FLAG,
145 },
cca73aa7 146 {
08d2a19c 147 .name = (char *) "showcmd",
cca73aa7 148 .has_arg = no_argument,
7a4b8240 149 .val = 's' | FIO_CLIENT_FLAG,
724e4435
JA
150 },
151 {
08d2a19c 152 .name = (char *) "readonly",
724e4435 153 .has_arg = no_argument,
7a4b8240 154 .val = 'r' | FIO_CLIENT_FLAG,
cca73aa7 155 },
e592a06b 156 {
08d2a19c 157 .name = (char *) "eta",
e592a06b 158 .has_arg = required_argument,
7a4b8240 159 .val = 'e' | FIO_CLIENT_FLAG,
e592a06b 160 },
ee56ad50 161 {
08d2a19c 162 .name = (char *) "debug",
ee56ad50 163 .has_arg = required_argument,
7a4b8240 164 .val = 'd' | FIO_CLIENT_FLAG,
ee56ad50 165 },
01f06b63 166 {
08d2a19c 167 .name = (char *) "section",
01f06b63 168 .has_arg = required_argument,
7a4b8240 169 .val = 'x' | FIO_CLIENT_FLAG,
01f06b63 170 },
2b386d25 171 {
08d2a19c 172 .name = (char *) "alloc-size",
2b386d25 173 .has_arg = required_argument,
7a4b8240 174 .val = 'a' | FIO_CLIENT_FLAG,
2b386d25 175 },
9ac8a797 176 {
08d2a19c 177 .name = (char *) "profile",
9ac8a797 178 .has_arg = required_argument,
7a4b8240 179 .val = 'p' | FIO_CLIENT_FLAG,
9ac8a797 180 },
a9523c6f 181 {
08d2a19c 182 .name = (char *) "warnings-fatal",
a9523c6f 183 .has_arg = no_argument,
7a4b8240 184 .val = 'w' | FIO_CLIENT_FLAG,
a9523c6f 185 },
fca70358
JA
186 {
187 .name = (char *) "max-jobs",
188 .has_arg = required_argument,
7a4b8240 189 .val = 'j' | FIO_CLIENT_FLAG,
fca70358 190 },
f57a9c59
JA
191 {
192 .name = (char *) "terse-version",
193 .has_arg = required_argument,
7a4b8240 194 .val = 'V' | FIO_CLIENT_FLAG,
f57a9c59 195 },
50d16976
JA
196 {
197 .name = (char *) "server",
87aa8f19 198 .has_arg = optional_argument,
50d16976
JA
199 .val = 'S',
200 },
e46d8091 201 { .name = (char *) "daemonize",
402668f3 202 .has_arg = required_argument,
e46d8091
JA
203 .val = 'D',
204 },
132159a5
JA
205 {
206 .name = (char *) "client",
207 .has_arg = required_argument,
208 .val = 'C',
209 },
b4692828
JA
210 {
211 .name = NULL,
212 },
213};
214
9d9eb2e7
JA
215static void free_shm(void)
216{
217 struct shmid_ds sbuf;
218
219 if (threads) {
220 void *tp = threads;
221
222 threads = NULL;
223 file_hash_exit();
9e684a49 224 flow_exit();
9d9eb2e7
JA
225 fio_debug_jobp = NULL;
226 shmdt(tp);
227 shmctl(shm_id, IPC_RMID, &sbuf);
228 }
229
230 scleanup();
231}
232
233/*
234 * The thread area is shared between the main process and the job
235 * threads/processes. So setup a shared memory segment that will hold
236 * all the job info. We use the end of the region for keeping track of
237 * open files across jobs, for file sharing.
238 */
239static int setup_thread_area(void)
240{
241 void *hash;
242
243 if (threads)
244 return 0;
245
246 /*
247 * 1024 is too much on some machines, scale max_jobs if
248 * we get a failure that looks like too large a shm segment
249 */
250 do {
251 size_t size = max_jobs * sizeof(struct thread_data);
252
253 size += file_hash_size;
254 size += sizeof(unsigned int);
255
256 shm_id = shmget(0, size, IPC_CREAT | 0600);
257 if (shm_id != -1)
258 break;
85af5794 259 if (errno != EINVAL && errno != ENOMEM) {
9d9eb2e7
JA
260 perror("shmget");
261 break;
262 }
263
264 max_jobs >>= 1;
265 } while (max_jobs);
266
267 if (shm_id == -1)
268 return 1;
269
270 threads = shmat(shm_id, NULL, 0);
271 if (threads == (void *) -1) {
272 perror("shmat");
273 return 1;
274 }
275
276 memset(threads, 0, max_jobs * sizeof(struct thread_data));
277 hash = (void *) threads + max_jobs * sizeof(struct thread_data);
278 fio_debug_jobp = (void *) hash + file_hash_size;
279 *fio_debug_jobp = -1;
280 file_hash_init(hash);
9e684a49
DE
281
282 flow_init();
283
9d9eb2e7
JA
284 return 0;
285}
286
906c8d75
JA
287/*
288 * Return a free job structure.
289 */
de890a1e
SL
290static struct thread_data *get_new_job(int global, struct thread_data *parent,
291 int preserve_eo)
ebac4655
JA
292{
293 struct thread_data *td;
294
295 if (global)
296 return &def_thread;
9d9eb2e7
JA
297 if (setup_thread_area()) {
298 log_err("error: failed to setup shm segment\n");
299 return NULL;
300 }
e61f1ec8
BC
301 if (thread_number >= max_jobs) {
302 log_err("error: maximum number of jobs (%d) reached.\n",
303 max_jobs);
ebac4655 304 return NULL;
e61f1ec8 305 }
ebac4655
JA
306
307 td = &threads[thread_number++];
ddaeaa5a 308 *td = *parent;
ebac4655 309
de890a1e
SL
310 td->io_ops = NULL;
311 if (!preserve_eo)
312 td->eo = NULL;
313
e0b0d892
JA
314 td->o.uid = td->o.gid = -1U;
315
cade3ef4 316 dup_files(td, parent);
de890a1e 317 fio_options_mem_dupe(td);
cade3ef4 318
15dc1934
JA
319 profile_add_hooks(td);
320
ebac4655 321 td->thread_number = thread_number;
ebac4655
JA
322 return td;
323}
324
325static void put_job(struct thread_data *td)
326{
549577a7
JA
327 if (td == &def_thread)
328 return;
84dd1886 329
58c55ba0 330 profile_td_exit(td);
9e684a49 331 flow_exit_job(td);
549577a7 332
16edf25d 333 if (td->error)
6d86144d 334 log_info("fio: %s\n", td->verror);
16edf25d 335
7e356b2d 336 fio_options_free(td);
de890a1e
SL
337 if (td->io_ops)
338 free_ioengine(td);
7e356b2d 339
ebac4655
JA
340 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
341 thread_number--;
342}
343
581e7141 344static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
127f6865 345{
581e7141 346 unsigned int bs = td->o.min_bs[ddir];
127f6865 347
ff58fced
JA
348 assert(ddir_rw(ddir));
349
ba3e4e0c 350 if (td->o.rate[ddir])
1b8dbf25 351 td->rate_bps[ddir] = td->o.rate[ddir];
ba3e4e0c 352 else
1b8dbf25 353 td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs;
127f6865 354
1b8dbf25 355 if (!td->rate_bps[ddir]) {
127f6865
JA
356 log_err("rate lower than supported\n");
357 return -1;
358 }
359
581e7141 360 td->rate_pending_usleep[ddir] = 0;
127f6865
JA
361 return 0;
362}
363
581e7141
JA
364static int setup_rate(struct thread_data *td)
365{
366 int ret = 0;
367
368 if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
369 ret = __setup_rate(td, DDIR_READ);
370 if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
371 ret |= __setup_rate(td, DDIR_WRITE);
372
373 return ret;
374}
375
8347239a
JA
376static int fixed_block_size(struct thread_options *o)
377{
378 return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
379 o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
380 o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE];
381}
382
dad915e3
JA
383/*
384 * Lazy way of fixing up options that depend on each other. We could also
385 * define option callback handlers, but this is easier.
386 */
4e991c23 387static int fixup_options(struct thread_data *td)
e1f36503 388{
2dc1bbeb 389 struct thread_options *o = &td->o;
ff217451 390 int ret = 0;
dad915e3 391
f356d01d 392#ifndef FIO_HAVE_PSHARED_MUTEX
9bbf57cc 393 if (!o->use_thread) {
f356d01d
JA
394 log_info("fio: this platform does not support process shared"
395 " mutexes, forcing use of threads. Use the 'thread'"
396 " option to get rid of this warning.\n");
9bbf57cc 397 o->use_thread = 1;
a9523c6f 398 ret = warnings_fatal;
f356d01d
JA
399 }
400#endif
401
2dc1bbeb 402 if (o->write_iolog_file && o->read_iolog_file) {
076efc7c 403 log_err("fio: read iolog overrides write_iolog\n");
2dc1bbeb
JA
404 free(o->write_iolog_file);
405 o->write_iolog_file = NULL;
a9523c6f 406 ret = warnings_fatal;
076efc7c 407 }
16b462ae 408
16b462ae 409 /*
ed335855 410 * only really works with 1 file
16b462ae 411 */
ed335855 412 if (o->zone_size && o->open_files == 1)
2dc1bbeb 413 o->zone_size = 0;
16b462ae 414
ed335855
SN
415 /*
416 * If zone_range isn't specified, backward compatibility dictates it
417 * should be made equal to zone_size.
418 */
419 if (o->zone_size && !o->zone_range)
420 o->zone_range = o->zone_size;
421
16b462ae
JA
422 /*
423 * Reads can do overwrites, we always need to pre-create the file
424 */
425 if (td_read(td) || td_rw(td))
2dc1bbeb 426 o->overwrite = 1;
16b462ae 427
2dc1bbeb 428 if (!o->min_bs[DDIR_READ])
5ec10eaa 429 o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
2dc1bbeb
JA
430 if (!o->max_bs[DDIR_READ])
431 o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
432 if (!o->min_bs[DDIR_WRITE])
5ec10eaa 433 o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
2dc1bbeb
JA
434 if (!o->max_bs[DDIR_WRITE])
435 o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
a00735e6 436
2dc1bbeb 437 o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
a00735e6 438
2b7a01d0
JA
439 /*
440 * For random IO, allow blockalign offset other than min_bs.
441 */
442 if (!o->ba[DDIR_READ] || !td_random(td))
443 o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
444 if (!o->ba[DDIR_WRITE] || !td_random(td))
445 o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
446
447 if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
448 o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE]) &&
9bbf57cc 449 !o->norandommap) {
2b7a01d0 450 log_err("fio: Any use of blockalign= turns off randommap\n");
9bbf57cc 451 o->norandommap = 1;
a9523c6f 452 ret = warnings_fatal;
2b7a01d0
JA
453 }
454
2dc1bbeb
JA
455 if (!o->file_size_high)
456 o->file_size_high = o->file_size_low;
9c60ce64 457
8347239a
JA
458 if (o->norandommap && o->verify != VERIFY_NONE
459 && !fixed_block_size(o)) {
460 log_err("fio: norandommap given for variable block sizes, "
461 "verify disabled\n");
2dc1bbeb 462 o->verify = VERIFY_NONE;
a9523c6f 463 ret = warnings_fatal;
bb8895e0 464 }
2dc1bbeb 465 if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
690adba3 466 log_err("fio: bs_unaligned may not work with raw io\n");
e0a22335 467
48097d5c
JA
468 /*
469 * thinktime_spin must be less than thinktime
470 */
2dc1bbeb
JA
471 if (o->thinktime_spin > o->thinktime)
472 o->thinktime_spin = o->thinktime;
e916b390
JA
473
474 /*
475 * The low water mark cannot be bigger than the iodepth
476 */
2dc1bbeb 477 if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
9467b77c
JA
478 /*
479 * syslet work around - if the workload is sequential,
480 * we want to let the queue drain all the way down to
481 * avoid seeking between async threads
482 */
483 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
2dc1bbeb 484 o->iodepth_low = 1;
9467b77c 485 else
2dc1bbeb 486 o->iodepth_low = o->iodepth;
9467b77c 487 }
cb5ab512
JA
488
489 /*
490 * If batch number isn't set, default to the same as iodepth
491 */
2dc1bbeb
JA
492 if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
493 o->iodepth_batch = o->iodepth;
b5af8293 494
2dc1bbeb
JA
495 if (o->nr_files > td->files_index)
496 o->nr_files = td->files_index;
9f9214f2 497
2dc1bbeb
JA
498 if (o->open_files > o->nr_files || !o->open_files)
499 o->open_files = o->nr_files;
4e991c23 500
581e7141
JA
501 if (((o->rate[0] + o->rate[1]) && (o->rate_iops[0] + o->rate_iops[1]))||
502 ((o->ratemin[0] + o->ratemin[1]) && (o->rate_iops_min[0] +
503 o->rate_iops_min[1]))) {
4e991c23 504 log_err("fio: rate and rate_iops are mutually exclusive\n");
a9523c6f 505 ret = 1;
4e991c23 506 }
581e7141
JA
507 if ((o->rate[0] < o->ratemin[0]) || (o->rate[1] < o->ratemin[1]) ||
508 (o->rate_iops[0] < o->rate_iops_min[0]) ||
509 (o->rate_iops[1] < o->rate_iops_min[1])) {
4e991c23 510 log_err("fio: minimum rate exceeds rate\n");
a9523c6f 511 ret = 1;
4e991c23
JA
512 }
513
cf4464ca
JA
514 if (!o->timeout && o->time_based) {
515 log_err("fio: time_based requires a runtime/timeout setting\n");
516 o->time_based = 0;
a9523c6f 517 ret = warnings_fatal;
cf4464ca
JA
518 }
519
aa31f1f1 520 if (o->fill_device && !o->size)
5921e80c 521 o->size = -1ULL;
5ec10eaa 522
9bbf57cc 523 if (o->verify != VERIFY_NONE) {
996936f9 524 if (td_write(td) && o->do_verify && o->numjobs > 1) {
a9523c6f
JA
525 log_info("Multiple writers may overwrite blocks that "
526 "belong to other jobs. This can cause "
527 "verification failures.\n");
528 ret = warnings_fatal;
529 }
530
9bbf57cc 531 o->refill_buffers = 1;
2f1b8e8b
JA
532 if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
533 !o->verify_interval)
534 o->verify_interval = o->min_bs[DDIR_WRITE];
d990588e 535 }
41ccd845 536
9bbf57cc
JA
537 if (o->pre_read) {
538 o->invalidate_cache = 0;
a9523c6f 539 if (td->io_ops->flags & FIO_PIPEIO) {
9c0d2241
JA
540 log_info("fio: cannot pre-read files with an IO engine"
541 " that isn't seekable. Pre-read disabled.\n");
a9523c6f
JA
542 ret = warnings_fatal;
543 }
9c0d2241 544 }
34f1c044 545
e72fa4d4 546#ifndef FIO_HAVE_FDATASYNC
9bbf57cc 547 if (o->fdatasync_blocks) {
e72fa4d4
JA
548 log_info("fio: this platform does not support fdatasync()"
549 " falling back to using fsync(). Use the 'fsync'"
550 " option instead of 'fdatasync' to get rid of"
551 " this warning\n");
9bbf57cc
JA
552 o->fsync_blocks = o->fdatasync_blocks;
553 o->fdatasync_blocks = 0;
a9523c6f 554 ret = warnings_fatal;
e72fa4d4
JA
555 }
556#endif
557
93bcfd20
BC
558#ifdef WIN32
559 /*
560 * Windows doesn't support O_DIRECT or O_SYNC with the _open interface,
561 * so fail if we're passed those flags
562 */
563 if ((td->io_ops->flags & FIO_SYNCIO) && (td->o.odirect || td->o.sync_io)) {
564 log_err("fio: Windows does not support direct or non-buffered io with"
565 " the synchronous ioengines. Use the 'windowsaio' ioengine"
566 " with 'direct=1' and 'iodepth=1' instead.\n");
567 ret = 1;
568 }
569#endif
570
811ac503
JA
571 /*
572 * For fully compressible data, just zero them at init time.
573 * It's faster than repeatedly filling it.
574 */
575 if (td->o.compress_percentage == 100) {
576 td->o.zero_buffers = 1;
577 td->o.compress_percentage = 0;
578 }
579
a9523c6f 580 return ret;
e1f36503
JA
581}
582
f8977ee6
JA
583/*
584 * This function leaks the buffer
585 */
586static char *to_kmg(unsigned int val)
587{
588 char *buf = malloc(32);
f3502ba2 589 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
f8977ee6
JA
590 char *p = post;
591
245142ff 592 do {
f8977ee6
JA
593 if (val & 1023)
594 break;
595
596 val >>= 10;
597 p++;
245142ff 598 } while (*p);
f8977ee6
JA
599
600 snprintf(buf, 31, "%u%c", val, *p);
601 return buf;
602}
603
09629a90
JA
604/* External engines are specified by "external:name.o") */
605static const char *get_engine_name(const char *str)
606{
607 char *p = strstr(str, ":");
608
609 if (!p)
610 return str;
611
612 p++;
613 strip_blank_front(&p);
614 strip_blank_end(p);
615 return p;
616}
617
e132cbae
JA
618static int exists_and_not_file(const char *filename)
619{
620 struct stat sb;
621
622 if (lstat(filename, &sb) == -1)
623 return 0;
624
ecc314ba
BC
625 /* \\.\ is the device namespace in Windows, where every file
626 * is a device node */
627 if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
e132cbae
JA
628 return 0;
629
630 return 1;
631}
632
4c07ad86 633static void td_fill_rand_seeds_os(struct thread_data *td)
5bfc35d7
JA
634{
635 os_random_seed(td->rand_seeds[0], &td->bsrange_state);
636 os_random_seed(td->rand_seeds[1], &td->verify_state);
637 os_random_seed(td->rand_seeds[2], &td->rwmix_state);
638
639 if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
640 os_random_seed(td->rand_seeds[3], &td->next_file_state);
641
642 os_random_seed(td->rand_seeds[5], &td->file_size_state);
0d29de83 643 os_random_seed(td->rand_seeds[6], &td->trim_state);
5bfc35d7
JA
644
645 if (!td_random(td))
646 return;
647
648 if (td->o.rand_repeatable)
649 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
650
651 os_random_seed(td->rand_seeds[4], &td->random_state);
4c07ad86
JA
652}
653
654static void td_fill_rand_seeds_internal(struct thread_data *td)
655{
656 init_rand_seed(&td->__bsrange_state, td->rand_seeds[0]);
657 init_rand_seed(&td->__verify_state, td->rand_seeds[1]);
658 init_rand_seed(&td->__rwmix_state, td->rand_seeds[2]);
659
660 if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
661 init_rand_seed(&td->__next_file_state, td->rand_seeds[3]);
662
663 init_rand_seed(&td->__file_size_state, td->rand_seeds[5]);
664 init_rand_seed(&td->__trim_state, td->rand_seeds[6]);
665
666 if (!td_random(td))
667 return;
668
669 if (td->o.rand_repeatable)
670 td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
671
2615cc4b 672 init_rand_seed(&td->__random_state, td->rand_seeds[4]);
5bfc35d7
JA
673}
674
4c07ad86
JA
675void td_fill_rand_seeds(struct thread_data *td)
676{
677 if (td->o.use_os_rand)
678 td_fill_rand_seeds_os(td);
679 else
680 td_fill_rand_seeds_internal(td);
3545a109
JA
681
682 init_rand_seed(&td->buf_state, td->rand_seeds[7]);
4c07ad86
JA
683}
684
9c60ce64 685
de890a1e
SL
686/*
687 * Initializes the ioengine configured for a job, if it has not been done so
688 * already.
689 */
690int ioengine_load(struct thread_data *td)
691{
692 const char *engine;
693
694 /*
695 * Engine has already been loaded.
696 */
697 if (td->io_ops)
698 return 0;
699
700 engine = get_engine_name(td->o.ioengine);
701 td->io_ops = load_ioengine(td, engine);
702 if (!td->io_ops) {
703 log_err("fio: failed to load engine %s\n", engine);
704 return 1;
705 }
706
707 if (td->io_ops->option_struct_size && td->io_ops->options) {
708 /*
709 * In cases where td->eo is set, clone it for a child thread.
710 * This requires that the parent thread has the same ioengine,
711 * but that requirement must be enforced by the code which
712 * cloned the thread.
713 */
714 void *origeo = td->eo;
715 /*
716 * Otherwise use the default thread options.
717 */
718 if (!origeo && td != &def_thread && def_thread.eo &&
719 def_thread.io_ops->options == td->io_ops->options)
720 origeo = def_thread.eo;
721
722 options_init(td->io_ops->options);
723 td->eo = malloc(td->io_ops->option_struct_size);
724 /*
725 * Use the default thread as an option template if this uses the
726 * same options structure and there are non-default options
727 * used.
728 */
729 if (origeo) {
730 memcpy(td->eo, origeo, td->io_ops->option_struct_size);
731 options_mem_dupe(td->eo, td->io_ops->options);
732 } else {
733 memset(td->eo, 0, td->io_ops->option_struct_size);
734 fill_default_options(td->eo, td->io_ops->options);
735 }
736 *(struct thread_data **)td->eo = td;
737 }
738
739 return 0;
740}
741
906c8d75
JA
742/*
743 * Adds a job to the list of things todo. Sanitizes the various options
744 * to make sure we don't have conflicts, and initializes various
745 * members of td.
746 */
75154845 747static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
ebac4655 748{
413dd459
JA
749 const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
750 "randread", "randwrite", "randrw" };
af52b345 751 unsigned int i;
af52b345 752 char fname[PATH_MAX];
e132cbae 753 int numjobs, file_alloced;
ebac4655 754
ebac4655
JA
755 /*
756 * the def_thread is just for options, it's not a real job
757 */
758 if (td == &def_thread)
759 return 0;
760
cca73aa7
JA
761 /*
762 * if we are just dumping the output command line, don't add the job
763 */
764 if (dump_cmdline) {
765 put_job(td);
766 return 0;
767 }
768
58c55ba0 769 if (profile_td_init(td))
66251554 770 goto err;
58c55ba0 771
de890a1e 772 if (ioengine_load(td))
205927a3 773 goto err;
df64119d 774
2dc1bbeb 775 if (td->o.use_thread)
9cedf167
JA
776 nr_thread++;
777 else
778 nr_process++;
779
2dc1bbeb 780 if (td->o.odirect)
690adba3
JA
781 td->io_ops->flags |= FIO_RAWIO;
782
e132cbae 783 file_alloced = 0;
691c8fb0 784 if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
e132cbae 785 file_alloced = 1;
80be24f4 786
2dc1bbeb 787 if (td->o.nr_files == 1 && exists_and_not_file(jobname))
e132cbae 788 add_file(td, jobname);
7b05a215 789 else {
2dc1bbeb 790 for (i = 0; i < td->o.nr_files; i++) {
5ec10eaa
JA
791 sprintf(fname, "%s.%d.%d", jobname,
792 td->thread_number, i);
7b05a215
JA
793 add_file(td, fname);
794 }
af52b345 795 }
0af7b542 796 }
ebac4655 797
4e991c23
JA
798 if (fixup_options(td))
799 goto err;
e0a22335 800
9e684a49
DE
801 flow_init_job(td);
802
de890a1e
SL
803 /*
804 * IO engines only need this for option callbacks, and the address may
805 * change in subprocesses.
806 */
807 if (td->eo)
808 *(struct thread_data **)td->eo = NULL;
809
07eb79df
JA
810 if (td->io_ops->flags & FIO_DISKLESSIO) {
811 struct fio_file *f;
812
813 for_each_file(td, f, i)
814 f->real_file_size = -1ULL;
815 }
816
cdd18ad8 817 td->mutex = fio_mutex_init(0);
ebac4655 818
83349190
YH
819 td->ts.clat_percentiles = td->o.clat_percentiles;
820 if (td->o.overwrite_plist)
802ad4a8 821 memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
83349190 822 else
802ad4a8 823 memcpy(td->ts.percentile_list, def_percentile_list, sizeof(def_percentile_list));
83349190 824
756867bd
JA
825 td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
826 td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
02af0988 827 td->ts.lat_stat[0].min_val = td->ts.lat_stat[1].min_val = ULONG_MAX;
756867bd 828 td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
cdd5411e 829 td->ddir_seq_nr = td->o.ddir_seq_nr;
ebac4655 830
755c3189 831 if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) {
3c5df6fa 832 prev_group_jobs = 0;
ebac4655 833 groupid++;
3c5df6fa 834 }
ebac4655
JA
835
836 td->groupid = groupid;
3c5df6fa 837 prev_group_jobs++;
ebac4655 838
93bcfd20
BC
839 if (init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds))) {
840 td_verror(td, errno, "init_random_state");
9c60ce64 841 goto err;
93bcfd20 842 }
9c60ce64 843
ebac4655
JA
844 if (setup_rate(td))
845 goto err;
846
2dc1bbeb 847 if (td->o.write_lat_log) {
b8bc8cba
JA
848 setup_log(&td->lat_log, td->o.log_avg_msec);
849 setup_log(&td->slat_log, td->o.log_avg_msec);
850 setup_log(&td->clat_log, td->o.log_avg_msec);
ebac4655 851 }
2dc1bbeb 852 if (td->o.write_bw_log)
b8bc8cba 853 setup_log(&td->bw_log, td->o.log_avg_msec);
c8eeb9df 854 if (td->o.write_iops_log)
b8bc8cba 855 setup_log(&td->iops_log, td->o.log_avg_msec);
ebac4655 856
2dc1bbeb
JA
857 if (!td->o.name)
858 td->o.name = strdup(jobname);
01452055 859
c6ae0a5b 860 if (!terse_output) {
b990b5c0 861 if (!job_add_num) {
5ec10eaa
JA
862 if (!strcmp(td->io_ops->name, "cpuio")) {
863 log_info("%s: ioengine=cpu, cpuload=%u,"
864 " cpucycle=%u\n", td->o.name,
865 td->o.cpuload,
866 td->o.cpucycle);
867 } else {
f8977ee6
JA
868 char *c1, *c2, *c3, *c4;
869
2dc1bbeb
JA
870 c1 = to_kmg(td->o.min_bs[DDIR_READ]);
871 c2 = to_kmg(td->o.max_bs[DDIR_READ]);
872 c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
873 c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
f8977ee6 874
5ec10eaa
JA
875 log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s,"
876 " ioengine=%s, iodepth=%u\n",
877 td->o.name, td->groupid,
878 ddir_str[td->o.td_ddir],
879 c1, c2, c3, c4,
880 td->io_ops->name,
881 td->o.iodepth);
f8977ee6
JA
882
883 free(c1);
884 free(c2);
885 free(c3);
886 free(c4);
887 }
b990b5c0 888 } else if (job_add_num == 1)
6d86144d 889 log_info("...\n");
c6ae0a5b 890 }
ebac4655
JA
891
892 /*
893 * recurse add identical jobs, clear numjobs and stonewall options
894 * as they don't apply to sub-jobs
895 */
2dc1bbeb 896 numjobs = td->o.numjobs;
ebac4655 897 while (--numjobs) {
de890a1e 898 struct thread_data *td_new = get_new_job(0, td, 1);
ebac4655
JA
899
900 if (!td_new)
901 goto err;
902
2dc1bbeb
JA
903 td_new->o.numjobs = 1;
904 td_new->o.stonewall = 0;
92c1d41f 905 td_new->o.new_group = 0;
e132cbae
JA
906
907 if (file_alloced) {
2dc1bbeb 908 td_new->o.filename = NULL;
e132cbae 909 td_new->files_index = 0;
4e6ea2f1 910 td_new->files_size = 0;
e132cbae
JA
911 td_new->files = NULL;
912 }
913
75154845 914 job_add_num = numjobs - 1;
ebac4655 915
75154845 916 if (add_job(td_new, jobname, job_add_num))
ebac4655
JA
917 goto err;
918 }
3c5df6fa 919
ebac4655
JA
920 return 0;
921err:
922 put_job(td);
923 return -1;
924}
925
79d16311
JA
926/*
927 * Parse as if 'o' was a command line
928 */
929void add_job_opts(const char **o)
930{
931 struct thread_data *td, *td_parent;
932 int i, in_global = 1;
933 char jobname[32];
934
935 i = 0;
936 td_parent = td = NULL;
937 while (o[i]) {
938 if (!strncmp(o[i], "name", 4)) {
939 in_global = 0;
940 if (td)
941 add_job(td, jobname, 0);
942 td = NULL;
943 sprintf(jobname, "%s", o[i] + 5);
944 }
945 if (in_global && !td_parent)
de890a1e 946 td_parent = get_new_job(1, &def_thread, 0);
79d16311
JA
947 else if (!in_global && !td) {
948 if (!td_parent)
949 td_parent = &def_thread;
de890a1e 950 td = get_new_job(0, td_parent, 0);
79d16311
JA
951 }
952 if (in_global)
953 fio_options_parse(td_parent, (char **) &o[i], 1);
954 else
955 fio_options_parse(td, (char **) &o[i], 1);
956 i++;
957 }
958
959 if (td)
960 add_job(td, jobname, 0);
961}
962
01f06b63
JA
963static int skip_this_section(const char *name)
964{
ad0a2735
JA
965 int i;
966
967 if (!nr_job_sections)
01f06b63
JA
968 return 0;
969 if (!strncmp(name, "global", 6))
970 return 0;
971
ad0a2735
JA
972 for (i = 0; i < nr_job_sections; i++)
973 if (!strcmp(job_sections[i], name))
974 return 0;
975
976 return 1;
01f06b63
JA
977}
978
ebac4655
JA
979static int is_empty_or_comment(char *line)
980{
981 unsigned int i;
982
983 for (i = 0; i < strlen(line); i++) {
984 if (line[i] == ';')
985 return 1;
5cc2da30
IM
986 if (line[i] == '#')
987 return 1;
76cd9378 988 if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
ebac4655
JA
989 return 0;
990 }
991
992 return 1;
993}
994
07261983
JA
995/*
996 * This is our [ini] type file parser.
997 */
50d16976 998int parse_jobs_ini(char *file, int is_buf, int stonewall_flag)
ebac4655 999{
e1f36503 1000 unsigned int global;
ebac4655 1001 struct thread_data *td;
fee3bb48 1002 char *string, *name;
ebac4655
JA
1003 FILE *f;
1004 char *p;
0c7e37a0 1005 int ret = 0, stonewall;
097b2991 1006 int first_sect = 1;
ccf8f127 1007 int skip_fgets = 0;
01f06b63 1008 int inside_skip = 0;
3b8b7135
JA
1009 char **opts;
1010 int i, alloc_opts, num_opts;
ebac4655 1011
50d16976
JA
1012 if (is_buf)
1013 f = NULL;
1014 else {
1015 if (!strcmp(file, "-"))
1016 f = stdin;
1017 else
1018 f = fopen(file, "r");
5a729cbe 1019
50d16976
JA
1020 if (!f) {
1021 perror("fopen job file");
1022 return 1;
1023 }
ebac4655
JA
1024 }
1025
1026 string = malloc(4096);
7f7e6e59
JA
1027
1028 /*
1029 * it's really 256 + small bit, 280 should suffice
1030 */
1031 name = malloc(280);
1032 memset(name, 0, 280);
ebac4655 1033
3b8b7135
JA
1034 alloc_opts = 8;
1035 opts = malloc(sizeof(char *) * alloc_opts);
b7c6302d 1036 num_opts = 0;
3b8b7135 1037
0c7e37a0 1038 stonewall = stonewall_flag;
7c124ac1 1039 do {
ccf8f127
JA
1040 /*
1041 * if skip_fgets is set, we already have loaded a line we
1042 * haven't handled.
1043 */
1044 if (!skip_fgets) {
50d16976
JA
1045 if (is_buf)
1046 p = strsep(&file, "\n");
1047 else
43f74792 1048 p = fgets(string, 4096, f);
ccf8f127
JA
1049 if (!p)
1050 break;
1051 }
cdc7f193 1052
ccf8f127 1053 skip_fgets = 0;
cdc7f193 1054 strip_blank_front(&p);
6c7c7da1 1055 strip_blank_end(p);
cdc7f193 1056
ebac4655
JA
1057 if (is_empty_or_comment(p))
1058 continue;
84dd1886 1059 if (sscanf(p, "[%255[^\n]]", name) != 1) {
01f06b63
JA
1060 if (inside_skip)
1061 continue;
5ec10eaa
JA
1062 log_err("fio: option <%s> outside of [] job section\n",
1063 p);
088b4207 1064 break;
6c7c7da1 1065 }
ebac4655 1066
7a4b80a1
JA
1067 name[strlen(name) - 1] = '\0';
1068
01f06b63
JA
1069 if (skip_this_section(name)) {
1070 inside_skip = 1;
1071 continue;
1072 } else
1073 inside_skip = 0;
1074
ebac4655
JA
1075 global = !strncmp(name, "global", 6);
1076
cca73aa7 1077 if (dump_cmdline) {
097b2991
JA
1078 if (first_sect)
1079 log_info("fio ");
cca73aa7
JA
1080 if (!global)
1081 log_info("--name=%s ", name);
097b2991 1082 first_sect = 0;
cca73aa7
JA
1083 }
1084
de890a1e 1085 td = get_new_job(global, &def_thread, 0);
45410acb
JA
1086 if (!td) {
1087 ret = 1;
1088 break;
1089 }
ebac4655 1090
972cfd25
JA
1091 /*
1092 * Seperate multiple job files by a stonewall
1093 */
f9481919 1094 if (!global && stonewall) {
2dc1bbeb 1095 td->o.stonewall = stonewall;
972cfd25
JA
1096 stonewall = 0;
1097 }
1098
3b8b7135
JA
1099 num_opts = 0;
1100 memset(opts, 0, alloc_opts * sizeof(char *));
1101
50d16976
JA
1102 while (1) {
1103 if (is_buf)
1104 p = strsep(&file, "\n");
1105 else
1106 p = fgets(string, 4096, f);
1107 if (!p)
1108 break;
1109
ebac4655
JA
1110 if (is_empty_or_comment(p))
1111 continue;
e1f36503 1112
b6754f9d 1113 strip_blank_front(&p);
7c124ac1 1114
ccf8f127
JA
1115 /*
1116 * new section, break out and make sure we don't
1117 * fgets() a new line at the top.
1118 */
1119 if (p[0] == '[') {
1120 skip_fgets = 1;
7c124ac1 1121 break;
ccf8f127 1122 }
7c124ac1 1123
4ae3f763 1124 strip_blank_end(p);
aea47d44 1125
3b8b7135
JA
1126 if (num_opts == alloc_opts) {
1127 alloc_opts <<= 1;
1128 opts = realloc(opts,
1129 alloc_opts * sizeof(char *));
1130 }
1131
1132 opts[num_opts] = strdup(p);
1133 num_opts++;
ebac4655 1134 }
ebac4655 1135
3b8b7135
JA
1136 ret = fio_options_parse(td, opts, num_opts);
1137 if (!ret) {
1138 if (dump_cmdline)
1139 for (i = 0; i < num_opts; i++)
1140 log_info("--%s ", opts[i]);
1141
45410acb 1142 ret = add_job(td, name, 0);
3b8b7135 1143 } else {
b1508cf9
JA
1144 log_err("fio: job %s dropped\n", name);
1145 put_job(td);
45410acb 1146 }
3b8b7135
JA
1147
1148 for (i = 0; i < num_opts; i++)
1149 free(opts[i]);
1150 num_opts = 0;
7c124ac1 1151 } while (!ret);
ebac4655 1152
cca73aa7
JA
1153 if (dump_cmdline)
1154 log_info("\n");
1155
7e356b2d
JA
1156 i = 0;
1157 while (i < nr_job_sections) {
1158 free(job_sections[i]);
1159 i++;
1160 }
1161
3b8b7135
JA
1162 for (i = 0; i < num_opts; i++)
1163 free(opts[i]);
1164
ebac4655
JA
1165 free(string);
1166 free(name);
2577594d 1167 free(opts);
50d16976 1168 if (!is_buf && f != stdin)
5a729cbe 1169 fclose(f);
45410acb 1170 return ret;
ebac4655
JA
1171}
1172
1173static int fill_def_thread(void)
1174{
1175 memset(&def_thread, 0, sizeof(def_thread));
1176
375b2695 1177 fio_getaffinity(getpid(), &def_thread.o.cpumask);
8c029376 1178 def_thread.o.timeout = def_timeout;
ebac4655
JA
1179
1180 /*
ee738499 1181 * fill default options
ebac4655 1182 */
214e1eca 1183 fio_fill_default_options(&def_thread);
ebac4655
JA
1184 return 0;
1185}
1186
45378b35 1187static void usage(const char *name)
4785f995 1188{
085399db 1189 printf("fio %s\n", fio_version_string);
45378b35 1190 printf("%s [options] [job options] <job file(s)>\n", name);
83881283
JA
1191 printf(" --debug=options\tEnable debug logging. May be one/more of:\n"
1192 "\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
1193 "\t\t\tdiskutil,job,mutex,profile,time,net\n");
1194 printf(" --output\t\tWrite output to file\n");
1195 printf(" --timeout\t\tRuntime in seconds\n");
1196 printf(" --latency-log\t\tGenerate per-job latency logs\n");
1197 printf(" --bandwidth-log\tGenerate per-job bandwidth logs\n");
1198 printf(" --minimal\t\tMinimal (terse) output\n");
1199 printf(" --version\t\tPrint version info and exit\n");
75db6e2c 1200 printf(" --terse-version=x\tSet terse version output format to 'x'\n");
83881283
JA
1201 printf(" --help\t\tPrint this page\n");
1202 printf(" --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
5ec10eaa 1203 " them\n");
de890a1e
SL
1204 printf(" --enghelp=engine\tPrint ioengine help, or list"
1205 " available ioengines\n");
1206 printf(" --enghelp=engine,cmd\tPrint help for an ioengine"
1207 " cmd\n");
83881283
JA
1208 printf(" --showcmd\t\tTurn a job file into command line options\n");
1209 printf(" --eta=when\t\tWhen ETA estimate should be printed\n");
1210 printf(" \t\tMay be \"always\", \"never\" or \"auto\"\n");
1211 printf(" --readonly\t\tTurn on safety read-only checks, preventing"
5ec10eaa 1212 " writes\n");
83881283
JA
1213 printf(" --section=name\tOnly run specified section in job file\n");
1214 printf(" --alloc-size=kb\tSet smalloc pool to this size in kb"
2b386d25 1215 " (def 1024)\n");
83881283
JA
1216 printf(" --warnings-fatal\tFio parser warnings are fatal\n");
1217 printf(" --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1218 printf(" --server=args\t\tStart a backend fio server\n");
1219 printf(" --daemonize=pidfile\tBackground fio server, write pid to file\n");
1220 printf(" --client=hostname\tTalk to remote backend fio server at hostname\n");
aa58d252 1221 printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
83881283 1222 printf("\n Jens Axboe <jaxboe@fusionio.com>\n");
4785f995
JA
1223}
1224
79e48f72 1225#ifdef FIO_INC_DEBUG
ee56ad50 1226struct debug_level debug_levels[] = {
bd6f78b2
JA
1227 { .name = "process", .shift = FD_PROCESS, },
1228 { .name = "file", .shift = FD_FILE, },
1229 { .name = "io", .shift = FD_IO, },
1230 { .name = "mem", .shift = FD_MEM, },
1231 { .name = "blktrace", .shift = FD_BLKTRACE },
1232 { .name = "verify", .shift = FD_VERIFY },
84422acd 1233 { .name = "random", .shift = FD_RANDOM },
a3d741fa 1234 { .name = "parse", .shift = FD_PARSE },
cd991b9e 1235 { .name = "diskutil", .shift = FD_DISKUTIL },
5e1d306e 1236 { .name = "job", .shift = FD_JOB },
29adda3c 1237 { .name = "mutex", .shift = FD_MUTEX },
79d16311 1238 { .name = "profile", .shift = FD_PROFILE },
c223da83 1239 { .name = "time", .shift = FD_TIME },
eb7976ef 1240 { .name = "net", .shift = FD_NET },
02444ad1 1241 { .name = NULL, },
ee56ad50
JA
1242};
1243
c09823ab 1244static int set_debug(const char *string)
ee56ad50
JA
1245{
1246 struct debug_level *dl;
1247 char *p = (char *) string;
1248 char *opt;
1249 int i;
1250
1251 if (!strcmp(string, "?") || !strcmp(string, "help")) {
ee56ad50
JA
1252 log_info("fio: dumping debug options:");
1253 for (i = 0; debug_levels[i].name; i++) {
1254 dl = &debug_levels[i];
1255 log_info("%s,", dl->name);
1256 }
bd6f78b2 1257 log_info("all\n");
c09823ab 1258 return 1;
ee56ad50
JA
1259 }
1260
1261 while ((opt = strsep(&p, ",")) != NULL) {
1262 int found = 0;
1263
5e1d306e
JA
1264 if (!strncmp(opt, "all", 3)) {
1265 log_info("fio: set all debug options\n");
1266 fio_debug = ~0UL;
1267 continue;
1268 }
1269
ee56ad50
JA
1270 for (i = 0; debug_levels[i].name; i++) {
1271 dl = &debug_levels[i];
5e1d306e
JA
1272 found = !strncmp(opt, dl->name, strlen(dl->name));
1273 if (!found)
1274 continue;
1275
1276 if (dl->shift == FD_JOB) {
1277 opt = strchr(opt, ':');
1278 if (!opt) {
1279 log_err("fio: missing job number\n");
1280 break;
1281 }
1282 opt++;
1283 fio_debug_jobno = atoi(opt);
1284 log_info("fio: set debug jobno %d\n",
1285 fio_debug_jobno);
1286 } else {
ee56ad50 1287 log_info("fio: set debug option %s\n", opt);
bd6f78b2 1288 fio_debug |= (1UL << dl->shift);
ee56ad50 1289 }
5e1d306e 1290 break;
ee56ad50
JA
1291 }
1292
1293 if (!found)
1294 log_err("fio: debug mask %s not found\n", opt);
1295 }
c09823ab 1296 return 0;
ee56ad50 1297}
79e48f72 1298#else
69b98d4c 1299static int set_debug(const char *string)
79e48f72
JA
1300{
1301 log_err("fio: debug tracing not included in build\n");
c09823ab 1302 return 1;
79e48f72
JA
1303}
1304#endif
9ac8a797 1305
4c6107ff
JA
1306static void fio_options_fill_optstring(void)
1307{
1308 char *ostr = cmd_optstr;
1309 int i, c;
1310
1311 c = i = 0;
1312 while (l_opts[i].name) {
1313 ostr[c++] = l_opts[i].val;
1314 if (l_opts[i].has_arg == required_argument)
1315 ostr[c++] = ':';
1316 else if (l_opts[i].has_arg == optional_argument) {
1317 ostr[c++] = ':';
1318 ostr[c++] = ':';
1319 }
1320 i++;
1321 }
1322 ostr[c] = '\0';
1323}
1324
c2c94585
JA
1325static int client_flag_set(char c)
1326{
1327 int i;
1328
1329 i = 0;
1330 while (l_opts[i].name) {
1331 int val = l_opts[i].val;
1332
1333 if (c == (val & 0xff))
1334 return (val & FIO_CLIENT_FLAG);
1335
1336 i++;
1337 }
1338
1339 return 0;
1340}
1341
fa2ea806 1342void parse_cmd_client(void *client, char *opt)
7a4b8240 1343{
fa2ea806 1344 fio_client_add_cmd_option(client, opt);
7a4b8240
JA
1345}
1346
81179eec 1347int parse_cmd_line(int argc, char *argv[])
ebac4655 1348{
b4692828 1349 struct thread_data *td = NULL;
c09823ab 1350 int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
4c6107ff 1351 char *ostr = cmd_optstr;
402668f3 1352 void *pid_file = NULL;
9bae26e8 1353 void *cur_client = NULL;
81179eec 1354 int backend = 0;
ebac4655 1355
c2c94585
JA
1356 /*
1357 * Reset optind handling, since we may call this multiple times
1358 * for the backend.
1359 */
1360 optind = 1;
7a4b8240 1361
c2c94585 1362 while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
085399db
JA
1363 did_arg = 1;
1364
c2c94585 1365 if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
fa2ea806 1366 parse_cmd_client(cur_client, argv[optind - 1]);
7a4b8240
JA
1367 c &= ~FIO_CLIENT_FLAG;
1368 }
1369
ebac4655 1370 switch (c) {
2b386d25
JA
1371 case 'a':
1372 smalloc_pool_size = atoi(optarg);
1373 break;
b4692828 1374 case 't':
8c029376 1375 def_timeout = atoi(optarg);
b4692828
JA
1376 break;
1377 case 'l':
1378 write_lat_log = 1;
1379 break;
3d73e5a9 1380 case 'b':
b4692828
JA
1381 write_bw_log = 1;
1382 break;
1383 case 'o':
1384 f_out = fopen(optarg, "w+");
1385 if (!f_out) {
1386 perror("fopen output");
1387 exit(1);
1388 }
1389 f_err = f_out;
1390 break;
1391 case 'm':
1392 terse_output = 1;
1393 break;
1394 case 'h':
7874f8b7 1395 if (!cur_client) {
c2c94585 1396 usage(argv[0]);
7874f8b7
JA
1397 do_exit++;
1398 }
c2c94585 1399 break;
fd28ca49 1400 case 'c':
7874f8b7 1401 if (!cur_client) {
c2c94585 1402 fio_show_option_help(optarg);
7874f8b7
JA
1403 do_exit++;
1404 }
c2c94585 1405 break;
de890a1e
SL
1406 case 'i':
1407 if (!cur_client) {
1408 fio_show_ioengine_help(optarg);
1409 do_exit++;
1410 }
1411 break;
cca73aa7
JA
1412 case 's':
1413 dump_cmdline = 1;
1414 break;
724e4435
JA
1415 case 'r':
1416 read_only = 1;
1417 break;
b4692828 1418 case 'v':
7874f8b7 1419 if (!cur_client) {
085399db 1420 log_info("fio %s\n", fio_version_string);
7874f8b7
JA
1421 do_exit++;
1422 }
c2c94585 1423 break;
f57a9c59
JA
1424 case 'V':
1425 terse_version = atoi(optarg);
4d658652 1426 if (!(terse_version == 2 || terse_version == 3)) {
f57a9c59
JA
1427 log_err("fio: bad terse version format\n");
1428 exit_val = 1;
1429 do_exit++;
1430 }
1431 break;
e592a06b
AC
1432 case 'e':
1433 if (!strcmp("always", optarg))
1434 eta_print = FIO_ETA_ALWAYS;
1435 else if (!strcmp("never", optarg))
1436 eta_print = FIO_ETA_NEVER;
1437 break;
ee56ad50 1438 case 'd':
c09823ab
JA
1439 if (set_debug(optarg))
1440 do_exit++;
ee56ad50 1441 break;
ad0a2735
JA
1442 case 'x': {
1443 size_t new_size;
1444
01f06b63 1445 if (!strcmp(optarg, "global")) {
5ec10eaa
JA
1446 log_err("fio: can't use global as only "
1447 "section\n");
c09823ab
JA
1448 do_exit++;
1449 exit_val = 1;
01f06b63
JA
1450 break;
1451 }
ad0a2735
JA
1452 new_size = (nr_job_sections + 1) * sizeof(char *);
1453 job_sections = realloc(job_sections, new_size);
1454 job_sections[nr_job_sections] = strdup(optarg);
1455 nr_job_sections++;
01f06b63 1456 break;
ad0a2735 1457 }
9ac8a797 1458 case 'p':
07b3232d 1459 exec_profile = strdup(optarg);
9ac8a797 1460 break;
b4692828 1461 case FIO_GETOPT_JOB: {
5ec10eaa 1462 const char *opt = l_opts[lidx].name;
b4692828
JA
1463 char *val = optarg;
1464
c2b1e753 1465 if (!strncmp(opt, "name", 4) && td) {
2dc1bbeb 1466 ret = add_job(td, td->o.name ?: "fio", 0);
66251554 1467 if (ret)
c2b1e753 1468 return 0;
c2b1e753
JA
1469 td = NULL;
1470 }
b4692828 1471 if (!td) {
01f06b63 1472 int is_section = !strncmp(opt, "name", 4);
3106f220
JA
1473 int global = 0;
1474
01f06b63 1475 if (!is_section || !strncmp(val, "global", 6))
3106f220 1476 global = 1;
c2b1e753 1477
01f06b63
JA
1478 if (is_section && skip_this_section(val))
1479 continue;
1480
de890a1e
SL
1481 td = get_new_job(global, &def_thread, 1);
1482 if (!td || ioengine_load(td))
b4692828 1483 return 0;
de890a1e 1484 fio_options_set_ioengine_opts(l_opts, td);
b4692828 1485 }
38d0adb0 1486
214e1eca 1487 ret = fio_cmd_option_parse(td, opt, val);
de890a1e
SL
1488
1489 if (!ret && !strcmp(opt, "ioengine")) {
1490 free_ioengine(td);
1491 if (ioengine_load(td))
1492 return 0;
1493 fio_options_set_ioengine_opts(l_opts, td);
1494 }
1495 break;
1496 }
1497 case FIO_GETOPT_IOENGINE: {
1498 const char *opt = l_opts[lidx].name;
1499 char *val = optarg;
1500 opt = l_opts[lidx].name;
1501 val = optarg;
1502 ret = fio_cmd_ioengine_option_parse(td, opt, val);
b4692828
JA
1503 break;
1504 }
a9523c6f
JA
1505 case 'w':
1506 warnings_fatal = 1;
1507 break;
fca70358
JA
1508 case 'j':
1509 max_jobs = atoi(optarg);
1510 if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
1511 log_err("fio: invalid max jobs: %d\n", max_jobs);
1512 do_exit++;
1513 exit_val = 1;
1514 }
1515 break;
50d16976 1516 case 'S':
a37f69b7 1517 if (nr_clients) {
132159a5
JA
1518 log_err("fio: can't be both client and server\n");
1519 do_exit++;
1520 exit_val = 1;
1521 break;
1522 }
87aa8f19 1523 if (optarg)
bebe6398 1524 fio_server_set_arg(optarg);
50d16976 1525 is_backend = 1;
81179eec 1526 backend = 1;
50d16976 1527 break;
e46d8091 1528 case 'D':
402668f3 1529 pid_file = strdup(optarg);
e46d8091 1530 break;
132159a5
JA
1531 case 'C':
1532 if (is_backend) {
1533 log_err("fio: can't be both client and server\n");
1534 do_exit++;
1535 exit_val = 1;
1536 break;
1537 }
bebe6398
JA
1538 if (fio_client_add(optarg, &cur_client)) {
1539 log_err("fio: failed adding client %s\n", optarg);
1540 do_exit++;
1541 exit_val = 1;
1542 break;
1543 }
132159a5 1544 break;
b4692828 1545 default:
c09823ab
JA
1546 do_exit++;
1547 exit_val = 1;
b4692828 1548 break;
ebac4655 1549 }
c7d5c941
JA
1550 if (do_exit)
1551 break;
ebac4655 1552 }
c9fad893 1553
c2c94585
JA
1554 if (do_exit) {
1555 if (exit_val && !(is_backend || nr_clients))
1556 exit(exit_val);
1557 }
536582bf 1558
a37f69b7 1559 if (nr_clients && fio_clients_connect()) {
132159a5
JA
1560 do_exit++;
1561 exit_val = 1;
cdf54d85 1562 return -1;
132159a5
JA
1563 }
1564
81179eec 1565 if (is_backend && backend)
402668f3 1566 return fio_start_server(pid_file);
50d16976 1567
b4692828 1568 if (td) {
7d6a8904 1569 if (!ret)
2dc1bbeb 1570 ret = add_job(td, td->o.name ?: "fio", 0);
972cfd25 1571 }
774a6177 1572
7874f8b7 1573 while (!ret && optind < argc) {
b4692828
JA
1574 ini_idx++;
1575 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1576 ini_file[ini_idx - 1] = strdup(argv[optind]);
1577 optind++;
eb8bbf48 1578 }
972cfd25
JA
1579
1580 return ini_idx;
ebac4655
JA
1581}
1582
ebac4655
JA
1583int parse_options(int argc, char *argv[])
1584{
972cfd25
JA
1585 int job_files, i;
1586
b4692828
JA
1587 f_out = stdout;
1588 f_err = stderr;
1589
4c6107ff 1590 fio_options_fill_optstring();
5ec10eaa 1591 fio_options_dup_and_init(l_opts);
b4692828 1592
9d9eb2e7
JA
1593 atexit(free_shm);
1594
ebac4655
JA
1595 if (fill_def_thread())
1596 return 1;
1597
972cfd25 1598 job_files = parse_cmd_line(argc, argv);
ebac4655 1599
cdf54d85
JA
1600 if (job_files > 0) {
1601 for (i = 0; i < job_files; i++) {
1602 if (fill_def_thread())
132159a5 1603 return 1;
cdf54d85
JA
1604 if (nr_clients) {
1605 if (fio_clients_send_ini(ini_file[i]))
1606 return 1;
1607 free(ini_file[i]);
1608 } else if (!is_backend) {
1609 if (parse_jobs_ini(ini_file[i], 0, i))
1610 return 1;
1611 free(ini_file[i]);
1612 }
132159a5 1613 }
972cfd25 1614 }
ebac4655 1615
88c6ed80 1616 free(ini_file);
7e356b2d 1617 fio_options_free(&def_thread);
b4692828
JA
1618
1619 if (!thread_number) {
cca73aa7
JA
1620 if (dump_cmdline)
1621 return 0;
07b3232d
JA
1622 if (exec_profile)
1623 return 0;
a37f69b7 1624 if (is_backend || nr_clients)
5c341e9a 1625 return 0;
085399db
JA
1626 if (did_arg)
1627 return 0;
cca73aa7 1628
d65e11c6 1629 log_err("No jobs(s) defined\n\n");
085399db
JA
1630
1631 if (!did_arg) {
1632 usage(argv[0]);
1633 return 1;
1634 }
1635
1636 return 0;
b4692828
JA
1637 }
1638
be4ecfdf
JA
1639 if (def_thread.o.gtod_offload) {
1640 fio_gtod_init();
1641 fio_gtod_offload = 1;
1642 fio_gtod_cpu = def_thread.o.gtod_cpu;
1643 }
1644
f6dea4d3
JA
1645 if (!terse_output)
1646 log_info("fio %s\n", fio_version_string);
1647
ebac4655
JA
1648 return 0;
1649}