[PATCH] Remove last remnants of file extending
[fio.git] / init.c
... / ...
CommitLineData
1#include <stdio.h>
2#include <stdlib.h>
3#include <unistd.h>
4#include <fcntl.h>
5#include <ctype.h>
6#include <string.h>
7#include <errno.h>
8#include <sys/ipc.h>
9#include <sys/shm.h>
10#include <sys/types.h>
11#include <sys/stat.h>
12
13#include "fio.h"
14
15#define DEF_BS (4096)
16#define DEF_TIMEOUT (0)
17#define DEF_RATE_CYCLE (1000)
18#define DEF_ODIRECT (1)
19#define DEF_IO_ENGINE (FIO_SYNCIO)
20#define DEF_IO_ENGINE_NAME "sync"
21#define DEF_SEQUENTIAL (1)
22#define DEF_RAND_REPEAT (1)
23#define DEF_OVERWRITE (1)
24#define DEF_CREATE (1)
25#define DEF_INVALIDATE (1)
26#define DEF_SYNCIO (0)
27#define DEF_RANDSEED (0xb1899bedUL)
28#define DEF_BWAVGTIME (500)
29#define DEF_CREATE_SER (1)
30#define DEF_CREATE_FSYNC (1)
31#define DEF_LOOPS (1)
32#define DEF_VERIFY (0)
33#define DEF_STONEWALL (0)
34#define DEF_NUMJOBS (1)
35#define DEF_USE_THREAD (0)
36#define DEF_FILE_SIZE (1024 * 1024 * 1024UL)
37#define DEF_ZONE_SIZE (0)
38#define DEF_ZONE_SKIP (0)
39#define DEF_RWMIX_CYCLE (500)
40#define DEF_RWMIX_READ (50)
41#define DEF_NICE (0)
42
43static int def_timeout = DEF_TIMEOUT;
44
45static char fio_version_string[] = "fio 1.4";
46
47static char **ini_file;
48static int max_jobs = MAX_JOBS;
49
50struct thread_data def_thread;
51struct thread_data *threads = NULL;
52
53int rate_quit = 0;
54int write_lat_log = 0;
55int write_bw_log = 0;
56int exitall_on_terminate = 0;
57int terse_output = 0;
58unsigned long long mlock_size = 0;
59FILE *f_out = NULL;
60FILE *f_err = NULL;
61
62static struct thread_data *get_new_job(int global, struct thread_data *parent)
63{
64 struct thread_data *td;
65
66 if (global)
67 return &def_thread;
68 if (thread_number >= max_jobs)
69 return NULL;
70
71 td = &threads[thread_number++];
72 *td = *parent;
73 td->name[0] = '\0';
74
75 td->fd = -1;
76 td->thread_number = thread_number;
77 return td;
78}
79
80static void put_job(struct thread_data *td)
81{
82 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
83 thread_number--;
84}
85
86static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
87{
88 char *ddir_str[] = { "read", "write", "randread", "randwrite",
89 "rw", NULL, "randrw" };
90 struct stat sb;
91 int numjobs, ddir;
92
93#ifndef FIO_HAVE_LIBAIO
94 if (td->io_engine == FIO_LIBAIO) {
95 log_err("Linux libaio not available\n");
96 return 1;
97 }
98#endif
99#ifndef FIO_HAVE_POSIXAIO
100 if (td->io_engine == FIO_POSIXAIO) {
101 log_err("posix aio not available\n");
102 return 1;
103 }
104#endif
105
106 /*
107 * the def_thread is just for options, it's not a real job
108 */
109 if (td == &def_thread)
110 return 0;
111
112 if (td->io_engine & FIO_SYNCIO)
113 td->iodepth = 1;
114 else {
115 if (!td->iodepth)
116 td->iodepth = 1;
117 }
118
119 /*
120 * only really works for sequential io for now
121 */
122 if (td->zone_size && !td->sequential)
123 td->zone_size = 0;
124
125 /*
126 * Reads can do overwrites, we always need to pre-create the file
127 */
128 if (td_read(td) || td_rw(td))
129 td->overwrite = 1;
130
131 td->filetype = FIO_TYPE_FILE;
132 if (!stat(jobname, &sb)) {
133 if (S_ISBLK(sb.st_mode))
134 td->filetype = FIO_TYPE_BD;
135 else if (S_ISCHR(sb.st_mode))
136 td->filetype = FIO_TYPE_CHAR;
137 }
138
139 if (td->filetype == FIO_TYPE_FILE) {
140 char tmp[PATH_MAX];
141
142 if (td->directory && td->directory[0] != '\0')
143 sprintf(tmp, "%s/%s.%d", td->directory, jobname, td->thread_number);
144 else
145 sprintf(tmp, "%s.%d", jobname, td->thread_number);
146 td->file_name = strdup(tmp);
147 } else
148 td->file_name = strdup(jobname);
149
150 fio_sem_init(&td->mutex, 0);
151
152 td->clat_stat[0].min_val = td->clat_stat[1].min_val = ULONG_MAX;
153 td->slat_stat[0].min_val = td->slat_stat[1].min_val = ULONG_MAX;
154 td->bw_stat[0].min_val = td->bw_stat[1].min_val = ULONG_MAX;
155
156 if (td->min_bs == -1U)
157 td->min_bs = td->bs;
158 if (td->max_bs == -1U)
159 td->max_bs = td->bs;
160 if (td_read(td) && !td_rw(td))
161 td->verify = 0;
162
163 if (td->stonewall && td->thread_number > 1)
164 groupid++;
165
166 td->groupid = groupid;
167
168 if (setup_rate(td))
169 goto err;
170
171 if (write_lat_log) {
172 setup_log(&td->slat_log);
173 setup_log(&td->clat_log);
174 }
175 if (write_bw_log)
176 setup_log(&td->bw_log);
177
178 if (td->name[0] == '\0')
179 snprintf(td->name, sizeof(td->name)-1, "client%d", td->thread_number);
180
181 ddir = td->ddir + (!td->sequential << 1) + (td->iomix << 2);
182
183 if (!terse_output) {
184 if (!job_add_num)
185 fprintf(f_out, "%s: (g=%d): rw=%s, odir=%d, bs=%d-%d, rate=%d, ioengine=%s, iodepth=%d\n", td->name, td->groupid, ddir_str[ddir], td->odirect, td->min_bs, td->max_bs, td->rate, td->io_engine_name, td->iodepth);
186 else if (job_add_num == 1)
187 fprintf(f_out, "...\n");
188 }
189
190 /*
191 * recurse add identical jobs, clear numjobs and stonewall options
192 * as they don't apply to sub-jobs
193 */
194 numjobs = td->numjobs;
195 while (--numjobs) {
196 struct thread_data *td_new = get_new_job(0, td);
197
198 if (!td_new)
199 goto err;
200
201 td_new->numjobs = 1;
202 td_new->stonewall = 0;
203 job_add_num = numjobs - 1;
204
205 if (add_job(td_new, jobname, job_add_num))
206 goto err;
207 }
208 return 0;
209err:
210 put_job(td);
211 return -1;
212}
213
214int init_random_state(struct thread_data *td)
215{
216 unsigned long seeds[4];
217 int fd, num_maps, blocks;
218
219 fd = open("/dev/urandom", O_RDONLY);
220 if (fd == -1) {
221 td_verror(td, errno);
222 return 1;
223 }
224
225 if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
226 td_verror(td, EIO);
227 close(fd);
228 return 1;
229 }
230
231 close(fd);
232
233 os_random_seed(seeds[0], &td->bsrange_state);
234 os_random_seed(seeds[1], &td->verify_state);
235 os_random_seed(seeds[2], &td->rwmix_state);
236
237 if (td->sequential)
238 return 0;
239
240 if (td->rand_repeatable)
241 seeds[3] = DEF_RANDSEED;
242
243 blocks = (td->io_size + td->min_bs - 1) / td->min_bs;
244 num_maps = blocks / BLOCKS_PER_MAP;
245 td->file_map = malloc(num_maps * sizeof(long));
246 td->num_maps = num_maps;
247 memset(td->file_map, 0, num_maps * sizeof(long));
248
249 os_random_seed(seeds[3], &td->random_state);
250 return 0;
251}
252
253static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
254{
255#ifdef FIO_HAVE_CPU_AFFINITY
256 unsigned int i;
257
258 CPU_ZERO(&cpumask);
259
260 for (i = 0; i < sizeof(int) * 8; i++) {
261 if ((1 << i) & cpu)
262 CPU_SET(i, &cpumask);
263 }
264#endif
265}
266
267static unsigned long get_mult(char c)
268{
269 switch (c) {
270 case 'k':
271 case 'K':
272 return 1024;
273 case 'm':
274 case 'M':
275 return 1024 * 1024;
276 case 'g':
277 case 'G':
278 return 1024 * 1024 * 1024;
279 default:
280 return 1;
281 }
282}
283
284/*
285 * convert string after '=' into decimal value, noting any size suffix
286 */
287static int str_cnv(char *p, unsigned long long *val)
288{
289 char *str;
290 int len;
291
292 str = strchr(p, '=');
293 if (!str)
294 return 1;
295
296 str++;
297 len = strlen(str);
298
299 *val = strtoul(str, NULL, 10);
300 if (*val == ULONG_MAX && errno == ERANGE)
301 return 1;
302
303 *val *= get_mult(str[len - 1]);
304 return 0;
305}
306
307static int check_strcnv(char *p, char *name, unsigned long long *val)
308{
309 if (strncmp(p, name, strlen(name) - 1))
310 return 1;
311
312 return str_cnv(p, val);
313}
314
315static void strip_blank_front(char **p)
316{
317 char *s = *p;
318
319 while (isspace(*s))
320 s++;
321}
322
323static void strip_blank_end(char *p)
324{
325 char *s = p + strlen(p) - 1;
326
327 while (isspace(*s) || iscntrl(*s))
328 s--;
329
330 *(s + 1) = '\0';
331}
332
333typedef int (str_cb_fn)(struct thread_data *, char *);
334
335static int check_str(char *p, char *name, str_cb_fn *cb, struct thread_data *td)
336{
337 char *s;
338
339 if (strncmp(p, name, strlen(name)))
340 return 1;
341
342 s = strstr(p, name);
343 if (!s)
344 return 1;
345
346 s = strchr(s, '=');
347 if (!s)
348 return 1;
349
350 s++;
351 strip_blank_front(&s);
352 return cb(td, s);
353}
354
355static int check_strstore(char *p, char *name, char *dest)
356{
357 char *s;
358
359 if (strncmp(p, name, strlen(name)))
360 return 1;
361
362 s = strstr(p, name);
363 if (!s)
364 return 1;
365
366 s = strchr(p, '=');
367 if (!s)
368 return 1;
369
370 s++;
371 strip_blank_front(&s);
372
373 strcpy(dest, s);
374 return 0;
375}
376
377static int __check_range(char *str, unsigned long *val)
378{
379 char suffix;
380
381 if (sscanf(str, "%lu%c", val, &suffix) == 2) {
382 *val *= get_mult(suffix);
383 return 0;
384 }
385
386 if (sscanf(str, "%lu", val) == 1)
387 return 0;
388
389 return 1;
390}
391
392static int check_range(char *p, char *name, unsigned long *s, unsigned long *e)
393{
394 char option[128];
395 char *str, *p1, *p2;
396
397 if (strncmp(p, name, strlen(name)))
398 return 1;
399
400 strcpy(option, p);
401 p = option;
402
403 str = strstr(p, name);
404 if (!str)
405 return 1;
406
407 p += strlen(name);
408
409 str = strchr(p, '=');
410 if (!str)
411 return 1;
412
413 /*
414 * 'p' now holds whatever is after the '=' sign
415 */
416 p1 = str + 1;
417
418 /*
419 * terminate p1 at the '-' sign
420 */
421 p = strchr(p1, '-');
422 if (!p)
423 return 1;
424
425 p2 = p + 1;
426 *p = '\0';
427
428 if (!__check_range(p1, s) && !__check_range(p2, e))
429 return 0;
430
431 return 1;
432}
433
434static int check_int(char *p, char *name, unsigned int *val)
435{
436 char *str;
437
438 if (strncmp(p, name, strlen(name)))
439 return 1;
440
441 str = strstr(p, name);
442 if (!str)
443 return 1;
444
445 str = strchr(p, '=');
446 if (!str)
447 return 1;
448
449 str++;
450
451 if (sscanf(str, "%u", val) == 1)
452 return 0;
453
454 return 1;
455}
456
457static int check_strset(char *p, char *name)
458{
459 return strncmp(p, name, strlen(name));
460}
461
462static int is_empty_or_comment(char *line)
463{
464 unsigned int i;
465
466 for (i = 0; i < strlen(line); i++) {
467 if (line[i] == ';')
468 return 1;
469 if (!isspace(line[i]) && !iscntrl(line[i]))
470 return 0;
471 }
472
473 return 1;
474}
475
476static int str_rw_cb(struct thread_data *td, char *mem)
477{
478 if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
479 td->ddir = DDIR_READ;
480 td->sequential = 1;
481 return 0;
482 } else if (!strncmp(mem, "randread", 8)) {
483 td->ddir = DDIR_READ;
484 td->sequential = 0;
485 return 0;
486 } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
487 td->ddir = DDIR_WRITE;
488 td->sequential = 1;
489 return 0;
490 } else if (!strncmp(mem, "randwrite", 9)) {
491 td->ddir = DDIR_WRITE;
492 td->sequential = 0;
493 return 0;
494 } else if (!strncmp(mem, "rw", 2)) {
495 td->ddir = 0;
496 td->iomix = 1;
497 td->sequential = 1;
498 return 0;
499 } else if (!strncmp(mem, "randrw", 6)) {
500 td->ddir = 0;
501 td->iomix = 1;
502 td->sequential = 0;
503 return 0;
504 }
505
506 log_err("fio: data direction: read, write, randread, randwrite, rw, randrw\n");
507 return 1;
508}
509
510static int str_verify_cb(struct thread_data *td, char *mem)
511{
512 if (!strncmp(mem, "0", 1)) {
513 td->verify = VERIFY_NONE;
514 return 0;
515 } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
516 td->verify = VERIFY_MD5;
517 return 0;
518 } else if (!strncmp(mem, "crc32", 5)) {
519 td->verify = VERIFY_CRC32;
520 return 0;
521 }
522
523 log_err("fio: verify types: md5, crc32\n");
524 return 1;
525}
526
527static int str_mem_cb(struct thread_data *td, char *mem)
528{
529 if (!strncmp(mem, "malloc", 6)) {
530 td->mem_type = MEM_MALLOC;
531 return 0;
532 } else if (!strncmp(mem, "shm", 3)) {
533 td->mem_type = MEM_SHM;
534 return 0;
535 } else if (!strncmp(mem, "mmap", 4)) {
536 td->mem_type = MEM_MMAP;
537 return 0;
538 }
539
540 log_err("fio: mem type: malloc, shm, mmap\n");
541 return 1;
542}
543
544static int str_ioengine_cb(struct thread_data *td, char *str)
545{
546 if (!strncmp(str, "linuxaio", 8) || !strncmp(str, "aio", 3) ||
547 !strncmp(str, "libaio", 6)) {
548 strcpy(td->io_engine_name, "libaio");
549 td->io_engine = FIO_LIBAIO;
550 return 0;
551 } else if (!strncmp(str, "posixaio", 8)) {
552 strcpy(td->io_engine_name, "posixaio");
553 td->io_engine = FIO_POSIXAIO;
554 return 0;
555 } else if (!strncmp(str, "sync", 4)) {
556 strcpy(td->io_engine_name, "sync");
557 td->io_engine = FIO_SYNCIO;
558 return 0;
559 } else if (!strncmp(str, "mmap", 4)) {
560 strcpy(td->io_engine_name, "mmap");
561 td->io_engine = FIO_MMAPIO;
562 return 0;
563 } else if (!strncmp(str, "sgio", 4)) {
564 strcpy(td->io_engine_name, "sgio");
565 td->io_engine = FIO_SGIO;
566 return 0;
567 } else if (!strncmp(str, "splice", 6)) {
568 strcpy(td->io_engine_name, "splice");
569 td->io_engine = FIO_SPLICEIO;
570 return 0;
571 }
572
573 log_err("fio: ioengine: { linuxaio, aio, libaio }, posixaio, sync, mmap, sgio, splice\n");
574 return 1;
575}
576
577/*
578 * This is our [ini] type file parser.
579 */
580int parse_jobs_ini(char *file)
581{
582 unsigned int prioclass, prio, cpu, global, il;
583 unsigned long long ull;
584 unsigned long ul1, ul2;
585 struct thread_data *td;
586 char *string, *name, *tmpbuf;
587 fpos_t off;
588 FILE *f;
589 char *p;
590 int ret = 0, stonewall = 1;
591
592 f = fopen(file, "r");
593 if (!f) {
594 perror("fopen job file");
595 return 1;
596 }
597
598 string = malloc(4096);
599 name = malloc(256);
600 tmpbuf = malloc(4096);
601
602 while ((p = fgets(string, 4096, f)) != NULL) {
603 if (ret)
604 break;
605 if (is_empty_or_comment(p))
606 continue;
607 if (sscanf(p, "[%s]", name) != 1)
608 continue;
609
610 global = !strncmp(name, "global", 6);
611
612 name[strlen(name) - 1] = '\0';
613
614 td = get_new_job(global, &def_thread);
615 if (!td) {
616 ret = 1;
617 break;
618 }
619
620 /*
621 * Seperate multiple job files by a stonewall
622 */
623 if (!global && stonewall) {
624 td->stonewall = stonewall;
625 stonewall = 0;
626 }
627
628 fgetpos(f, &off);
629 while ((p = fgets(string, 4096, f)) != NULL) {
630 if (is_empty_or_comment(p))
631 continue;
632 if (strstr(p, "["))
633 break;
634 strip_blank_front(&p);
635 strip_blank_end(p);
636
637 if (!check_int(p, "prio", &prio)) {
638#ifndef FIO_HAVE_IOPRIO
639 log_err("io priorities not available\n");
640 ret = 1;
641 break;
642#endif
643 td->ioprio |= prio;
644 fgetpos(f, &off);
645 continue;
646 }
647 if (!check_int(p, "prioclass", &prioclass)) {
648#ifndef FIO_HAVE_IOPRIO
649 log_err("io priorities not available\n");
650 ret = 1;
651 break;
652#else
653 td->ioprio |= prioclass << IOPRIO_CLASS_SHIFT;
654 fgetpos(f, &off);
655 continue;
656#endif
657 }
658 if (!check_int(p, "direct", &il)) {
659 td->odirect = il;
660 fgetpos(f, &off);
661 continue;
662 }
663 if (!check_int(p, "rand_repeatable", &il)) {
664 td->rand_repeatable = il;
665 fgetpos(f, &off);
666 continue;
667 }
668 if (!check_int(p, "rate", &td->rate)) {
669 fgetpos(f, &off);
670 continue;
671 }
672 if (!check_int(p, "ratemin", &td->ratemin)) {
673 fgetpos(f, &off);
674 continue;
675 }
676 if (!check_int(p, "ratecycle", &td->ratecycle)) {
677 fgetpos(f, &off);
678 continue;
679 }
680 if (!check_int(p, "thinktime", &td->thinktime)) {
681 fgetpos(f, &off);
682 continue;
683 }
684 if (!check_int(p, "cpumask", &cpu)) {
685#ifndef FIO_HAVE_CPU_AFFINITY
686 log_err("cpu affinity not available\n");
687 ret = 1;
688 break;
689#endif
690 fill_cpu_mask(td->cpumask, cpu);
691 fgetpos(f, &off);
692 continue;
693 }
694 if (!check_int(p, "fsync", &td->fsync_blocks)) {
695 fgetpos(f, &off);
696 td->end_fsync = 1;
697 continue;
698 }
699 if (!check_int(p, "startdelay", &td->start_delay)) {
700 fgetpos(f, &off);
701 continue;
702 }
703 if (!check_int(p, "timeout", &td->timeout)) {
704 fgetpos(f, &off);
705 continue;
706 }
707 if (!check_int(p, "invalidate", &il)) {
708 td->invalidate_cache = il;
709 fgetpos(f, &off);
710 continue;
711 }
712 if (!check_int(p, "iodepth", &td->iodepth)) {
713 fgetpos(f, &off);
714 continue;
715 }
716 if (!check_int(p, "sync", &il)) {
717 td->sync_io = il;
718 fgetpos(f, &off);
719 continue;
720 }
721 if (!check_int(p, "bwavgtime", &td->bw_avg_time)) {
722 fgetpos(f, &off);
723 continue;
724 }
725 if (!check_int(p, "create_serialize", &il)) {
726 td->create_serialize = il;
727 fgetpos(f, &off);
728 continue;
729 }
730 if (!check_int(p, "create_fsync", &il)) {
731 td->create_fsync = il;
732 fgetpos(f, &off);
733 continue;
734 }
735 if (!check_int(p, "end_fsync", &il)) {
736 td->end_fsync = il;
737 fgetpos(f, &off);
738 continue;
739 }
740 if (!check_int(p, "loops", &td->loops)) {
741 fgetpos(f, &off);
742 continue;
743 }
744 if (!check_int(p, "numjobs", &td->numjobs)) {
745 fgetpos(f, &off);
746 continue;
747 }
748 if (!check_int(p, "overwrite", &il)) {
749 td->overwrite = il;
750 fgetpos(f, &off);
751 continue;
752 }
753 if (!check_int(p, "rwmixcycle", &td->rwmixcycle)) {
754 fgetpos(f, &off);
755 continue;
756 }
757 if (!check_int(p, "rwmixread", &il)) {
758 if (il > 100)
759 il = 100;
760 td->rwmixread = il;
761 fgetpos(f, &off);
762 continue;
763 }
764 if (!check_int(p, "rwmixwrite", &il)) {
765 if (il > 100)
766 il = 100;
767 td->rwmixread = 100 - il;
768 fgetpos(f, &off);
769 continue;
770 }
771 if (!check_int(p, "nice", &td->nice)) {
772 fgetpos(f, &off);
773 continue;
774 }
775 if (!check_range(p, "bsrange", &ul1, &ul2)) {
776 if (ul1 > ul2) {
777 td->max_bs = ul1;
778 td->min_bs = ul2;
779 } else {
780 td->max_bs = ul2;
781 td->min_bs = ul1;
782 }
783 fgetpos(f, &off);
784 continue;
785 }
786 if (!check_strcnv(p, "bs", &ull)) {
787 td->bs = ull;
788 fgetpos(f, &off);
789 continue;
790 }
791 if (!check_strcnv(p, "size", &td->file_size)) {
792 fgetpos(f, &off);
793 continue;
794 }
795 if (!check_strcnv(p, "offset", &td->file_offset)) {
796 fgetpos(f, &off);
797 continue;
798 }
799 if (!check_strcnv(p, "zonesize", &td->zone_size)) {
800 fgetpos(f, &off);
801 continue;
802 }
803 if (!check_strcnv(p, "zoneskip", &td->zone_skip)) {
804 fgetpos(f, &off);
805 continue;
806 }
807 if (!check_strcnv(p, "lockmem", &mlock_size)) {
808 fgetpos(f, &off);
809 continue;
810 }
811 if (!check_strstore(p, "directory", tmpbuf)) {
812 td->directory = strdup(tmpbuf);
813 fgetpos(f, &off);
814 continue;
815 }
816 if (!check_strstore(p, "name", tmpbuf)) {
817 snprintf(td->name, sizeof(td->name)-1, "%s%d", tmpbuf, td->thread_number);
818 fgetpos(f, &off);
819 continue;
820 }
821 if (!check_str(p, "mem", str_mem_cb, td)) {
822 fgetpos(f, &off);
823 continue;
824 }
825 if (!check_str(p, "verify", str_verify_cb, td)) {
826 fgetpos(f, &off);
827 continue;
828 }
829 if (!check_str(p, "rw", str_rw_cb, td)) {
830 fgetpos(f, &off);
831 continue;
832 }
833 if (!check_str(p, "ioengine", str_ioengine_cb, td)) {
834 fgetpos(f, &off);
835 continue;
836 }
837 if (!check_strset(p, "create")) {
838 td->create_file = 1;
839 fgetpos(f, &off);
840 continue;
841 }
842 if (!check_strset(p, "exitall")) {
843 exitall_on_terminate = 1;
844 fgetpos(f, &off);
845 continue;
846 }
847 if (!check_strset(p, "stonewall")) {
848 td->stonewall = 1;
849 fgetpos(f, &off);
850 continue;
851 }
852 if (!check_strset(p, "thread")) {
853 td->use_thread = 1;
854 fgetpos(f, &off);
855 continue;
856 }
857 if (!check_strstore(p, "iolog", tmpbuf)) {
858 if (td->write_iolog) {
859 log_err("fio: read iolog overrides given write_iolog\n");
860 free(td->iolog_file);
861 td->write_iolog = 0;
862 }
863 td->iolog_file = strdup(tmpbuf);
864 td->read_iolog = 1;
865 fgetpos(f, &off);
866 continue;
867 }
868 if (!check_strstore(p, "write_iolog", tmpbuf)) {
869 if (!td->read_iolog) {
870 td->iolog_file = strdup(tmpbuf);
871 td->write_iolog = 1;
872 } else
873 log_err("fio: read iolog overrides given write_iolog\n");
874 fgetpos(f, &off);
875 continue;
876 }
877 if (!check_strstore(p, "exec_prerun", tmpbuf)) {
878 td->exec_prerun = strdup(tmpbuf);
879 fgetpos(f, &off);
880 continue;
881 }
882 if (!check_strstore(p, "exec_postrun", tmpbuf)) {
883 td->exec_postrun = strdup(tmpbuf);
884 fgetpos(f, &off);
885 continue;
886 }
887 if (!check_strstore(p, "ioscheduler", tmpbuf)) {
888#ifndef FIO_HAVE_IOSCHED_SWITCH
889 log_err("io scheduler switching not available\n");
890 ret = 1;
891 break;
892#else
893 td->ioscheduler = strdup(tmpbuf);
894 fgetpos(f, &off);
895 continue;
896#endif
897 }
898
899 /*
900 * Don't break here, continue parsing options so we
901 * dump all the bad ones. Makes trial/error fixups
902 * easier on the user.
903 */
904 printf("Client%d: bad option %s\n",td->thread_number,p);
905 ret = 1;
906 }
907
908 if (!ret) {
909 fsetpos(f, &off);
910 ret = add_job(td, name, 0);
911 }
912 if (ret)
913 break;
914 }
915
916 free(string);
917 free(name);
918 free(tmpbuf);
919 fclose(f);
920 return ret;
921}
922
923static int fill_def_thread(void)
924{
925 memset(&def_thread, 0, sizeof(def_thread));
926
927 if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
928 perror("sched_getaffinity");
929 return 1;
930 }
931
932 /*
933 * fill globals
934 */
935 def_thread.ddir = DDIR_READ;
936 def_thread.iomix = 0;
937 def_thread.bs = DEF_BS;
938 def_thread.min_bs = -1;
939 def_thread.max_bs = -1;
940 def_thread.io_engine = DEF_IO_ENGINE;
941 strcpy(def_thread.io_engine_name, DEF_IO_ENGINE_NAME);
942 def_thread.odirect = DEF_ODIRECT;
943 def_thread.ratecycle = DEF_RATE_CYCLE;
944 def_thread.sequential = DEF_SEQUENTIAL;
945 def_thread.timeout = def_timeout;
946 def_thread.create_file = DEF_CREATE;
947 def_thread.overwrite = DEF_OVERWRITE;
948 def_thread.invalidate_cache = DEF_INVALIDATE;
949 def_thread.sync_io = DEF_SYNCIO;
950 def_thread.mem_type = MEM_MALLOC;
951 def_thread.bw_avg_time = DEF_BWAVGTIME;
952 def_thread.create_serialize = DEF_CREATE_SER;
953 def_thread.create_fsync = DEF_CREATE_FSYNC;
954 def_thread.loops = DEF_LOOPS;
955 def_thread.verify = DEF_VERIFY;
956 def_thread.stonewall = DEF_STONEWALL;
957 def_thread.numjobs = DEF_NUMJOBS;
958 def_thread.use_thread = DEF_USE_THREAD;
959 def_thread.rwmixcycle = DEF_RWMIX_CYCLE;
960 def_thread.rwmixread = DEF_RWMIX_READ;
961 def_thread.nice = DEF_NICE;
962 def_thread.rand_repeatable = DEF_RAND_REPEAT;
963#ifdef FIO_HAVE_DISK_UTIL
964 def_thread.do_disk_util = 1;
965#endif
966
967 return 0;
968}
969
970static void usage(char *name)
971{
972 printf("%s\n", fio_version_string);
973 printf("\t-o Write output to file\n");
974 printf("\t-t Runtime in seconds\n");
975 printf("\t-l Generate per-job latency logs\n");
976 printf("\t-w Generate per-job bandwidth logs\n");
977 printf("\t-m Minimal (terse) output\n");
978 printf("\t-f Job file (Required)\n");
979 printf("\t-v Print version info and exit\n");
980}
981
982static int parse_cmd_line(int argc, char *argv[])
983{
984 int c, idx = 1, ini_idx = 0;
985
986 while ((c = getopt(argc, argv, "t:o:f:lwvhm")) != EOF) {
987 switch (c) {
988 case 't':
989 def_timeout = atoi(optarg);
990 idx++;
991 break;
992 case 'f':
993 ini_idx++;
994 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
995 ini_file[ini_idx - 1] = strdup(optarg);
996 idx++;
997 break;
998 case 'l':
999 write_lat_log = 1;
1000 idx++;
1001 break;
1002 case 'w':
1003 write_bw_log = 1;
1004 idx++;
1005 break;
1006 case 'o':
1007 f_out = fopen(optarg, "w+");
1008 if (!f_out) {
1009 perror("fopen output");
1010 exit(1);
1011 }
1012 f_err = f_out;
1013 idx++;
1014 break;
1015 case 'm':
1016 terse_output = 1;
1017 idx++;
1018 break;
1019 case 'h':
1020 usage(argv[0]);
1021 exit(0);
1022 case 'v':
1023 printf("%s\n", fio_version_string);
1024 exit(0);
1025 }
1026 }
1027
1028 while (idx < argc) {
1029 ini_idx++;
1030 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1031 ini_file[ini_idx - 1] = strdup(argv[idx]);
1032 idx++;
1033 }
1034
1035 if (!f_out) {
1036 f_out = stdout;
1037 f_err = stderr;
1038 }
1039
1040 return ini_idx;
1041}
1042
1043static void free_shm(void)
1044{
1045 struct shmid_ds sbuf;
1046
1047 if (threads) {
1048 shmdt((void *) threads);
1049 threads = NULL;
1050 shmctl(shm_id, IPC_RMID, &sbuf);
1051 }
1052}
1053
1054static int setup_thread_area(void)
1055{
1056 /*
1057 * 1024 is too much on some machines, scale max_jobs if
1058 * we get a failure that looks like too large a shm segment
1059 */
1060 do {
1061 int s = max_jobs * sizeof(struct thread_data);
1062
1063 shm_id = shmget(0, s, IPC_CREAT | 0600);
1064 if (shm_id != -1)
1065 break;
1066 if (errno != EINVAL) {
1067 perror("shmget");
1068 break;
1069 }
1070
1071 max_jobs >>= 1;
1072 } while (max_jobs);
1073
1074 if (shm_id == -1)
1075 return 1;
1076
1077 threads = shmat(shm_id, NULL, 0);
1078 if (threads == (void *) -1) {
1079 perror("shmat");
1080 return 1;
1081 }
1082
1083 atexit(free_shm);
1084 return 0;
1085}
1086
1087int parse_options(int argc, char *argv[])
1088{
1089 int job_files, i;
1090
1091 if (setup_thread_area())
1092 return 1;
1093 if (fill_def_thread())
1094 return 1;
1095
1096 job_files = parse_cmd_line(argc, argv);
1097 if (!job_files) {
1098 log_err("Need job file(s)\n");
1099 usage(argv[0]);
1100 return 1;
1101 }
1102
1103 for (i = 0; i < job_files; i++) {
1104 if (fill_def_thread())
1105 return 1;
1106 if (parse_jobs_ini(ini_file[i]))
1107 return 1;
1108 free(ini_file[i]);
1109 }
1110
1111 free(ini_file);
1112 return 0;
1113}