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Add create_on_open option
[fio.git] / filesetup.c
... / ...
CommitLineData
1#include <unistd.h>
2#include <fcntl.h>
3#include <string.h>
4#include <assert.h>
5#include <dirent.h>
6#include <sys/stat.h>
7#include <sys/mman.h>
8#include <sys/types.h>
9
10#include "fio.h"
11#include "smalloc.h"
12#include "filehash.h"
13
14static int root_warn;
15
16/*
17 * Leaves f->fd open on success, caller must close
18 */
19static int extend_file(struct thread_data *td, struct fio_file *f)
20{
21 int r, new_layout = 0, unlink_file = 0, flags;
22 unsigned long long left;
23 unsigned int bs;
24 char *b;
25
26 if (read_only) {
27 log_err("fio: refusing extend of file due to read-only\n");
28 return 0;
29 }
30
31 /*
32 * check if we need to lay the file out complete again. fio
33 * does that for operations involving reads, or for writes
34 * where overwrite is set
35 */
36 if (td_read(td) || (td_write(td) && td->o.overwrite) ||
37 (td_write(td) && td->io_ops->flags & FIO_NOEXTEND))
38 new_layout = 1;
39 if (td_write(td) && !td->o.overwrite)
40 unlink_file = 1;
41
42 if (unlink_file || new_layout) {
43 dprint(FD_FILE, "layout unlink %s\n", f->file_name);
44 if ((unlink(f->file_name) < 0) && (errno != ENOENT)) {
45 td_verror(td, errno, "unlink");
46 return 1;
47 }
48 }
49
50 flags = O_WRONLY | O_CREAT;
51 if (new_layout)
52 flags |= O_TRUNC;
53
54 dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags);
55 f->fd = open(f->file_name, flags, 0644);
56 if (f->fd < 0) {
57 td_verror(td, errno, "open");
58 return 1;
59 }
60
61 if (!new_layout)
62 goto done;
63
64 dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name,
65 f->real_file_size);
66 if (ftruncate(f->fd, f->real_file_size) == -1) {
67 td_verror(td, errno, "ftruncate");
68 goto err;
69 }
70
71#ifdef FIO_HAVE_FALLOCATE
72 dprint(FD_FILE, "fallocate file %s, size %llu\n", f->file_name,
73 f->real_file_size);
74 r = posix_fallocate(f->fd, 0, f->real_file_size);
75 if (r < 0)
76 log_err("fio: posix_fallocate fails: %s\n", strerror(-r));
77#endif
78
79 b = malloc(td->o.max_bs[DDIR_WRITE]);
80 memset(b, 0, td->o.max_bs[DDIR_WRITE]);
81
82 left = f->real_file_size;
83 while (left && !td->terminate) {
84 bs = td->o.max_bs[DDIR_WRITE];
85 if (bs > left)
86 bs = left;
87
88 r = write(f->fd, b, bs);
89
90 if (r == (int) bs) {
91 left -= bs;
92 continue;
93 } else {
94 if (r < 0)
95 td_verror(td, errno, "write");
96 else
97 td_verror(td, EIO, "write");
98
99 break;
100 }
101 }
102
103 if (td->terminate) {
104 dprint(FD_FILE, "terminate unlink %s\n", f->file_name);
105 unlink(f->file_name);
106 } else if (td->o.create_fsync) {
107 if (fsync(f->fd) < 0) {
108 td_verror(td, errno, "fsync");
109 goto err;
110 }
111 }
112
113 free(b);
114done:
115 return 0;
116err:
117 close(f->fd);
118 f->fd = -1;
119 return 1;
120}
121
122static unsigned long long get_rand_file_size(struct thread_data *td)
123{
124 unsigned long long ret, sized;
125 long r;
126
127 r = os_random_long(&td->file_size_state);
128 sized = td->o.file_size_high - td->o.file_size_low;
129 ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0)));
130 ret += td->o.file_size_low;
131 ret -= (ret % td->o.rw_min_bs);
132 return ret;
133}
134
135static int file_size(struct thread_data *td, struct fio_file *f)
136{
137 struct stat st;
138
139 if (fstat(f->fd, &st) == -1) {
140 td_verror(td, errno, "fstat");
141 return 1;
142 }
143
144 f->real_file_size = st.st_size;
145 return 0;
146}
147
148static int bdev_size(struct thread_data *td, struct fio_file *f)
149{
150 unsigned long long bytes;
151 int r;
152
153 r = blockdev_size(f->fd, &bytes);
154 if (r) {
155 td_verror(td, r, "blockdev_size");
156 return 1;
157 }
158
159 if (!bytes) {
160 log_err("%s: zero sized block device?\n", f->file_name);
161 return 1;
162 }
163
164 f->real_file_size = bytes;
165 return 0;
166}
167
168static int get_file_size(struct thread_data *td, struct fio_file *f)
169{
170 int ret = 0;
171
172 if (f->flags & FIO_SIZE_KNOWN)
173 return 0;
174
175 if (f->filetype == FIO_TYPE_FILE)
176 ret = file_size(td, f);
177 else if (f->filetype == FIO_TYPE_BD)
178 ret = bdev_size(td, f);
179 else
180 f->real_file_size = -1;
181
182 if (ret)
183 return ret;
184
185 if (f->file_offset > f->real_file_size) {
186 log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name,
187 f->file_offset, f->real_file_size);
188 return 1;
189 }
190
191 f->flags |= FIO_SIZE_KNOWN;
192 return 0;
193}
194
195static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f,
196 unsigned long long off,
197 unsigned long long len)
198{
199 int ret = 0;
200
201 if (len == -1ULL)
202 len = f->io_size;
203 if (off == -1ULL)
204 off = f->file_offset;
205
206 dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off,
207 len);
208
209 /*
210 * FIXME: add blockdev flushing too
211 */
212 if (f->mmap)
213 ret = madvise(f->mmap, len, MADV_DONTNEED);
214 else if (f->filetype == FIO_TYPE_FILE) {
215 ret = fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
216 } else if (f->filetype == FIO_TYPE_BD) {
217 ret = blockdev_invalidate_cache(f->fd);
218 if (ret < 0 && errno == EACCES && geteuid()) {
219 if (!root_warn) {
220 log_err("fio: only root may flush block "
221 "devices. Cache flush bypassed!\n");
222 root_warn = 1;
223 }
224 ret = 0;
225 }
226 } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
227 ret = 0;
228
229 if (ret < 0) {
230 td_verror(td, errno, "invalidate_cache");
231 return 1;
232 } else if (ret > 0) {
233 td_verror(td, ret, "invalidate_cache");
234 return 1;
235 }
236
237 return ret;
238
239}
240
241int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
242{
243 if (!(f->flags & FIO_FILE_OPEN))
244 return 0;
245
246 return __file_invalidate_cache(td, f, -1, -1);
247}
248
249int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
250{
251 int ret = 0;
252
253 dprint(FD_FILE, "fd close %s\n", f->file_name);
254
255 remove_file_hash(f);
256
257 if (close(f->fd) < 0)
258 ret = errno;
259
260 f->fd = -1;
261 return ret;
262}
263
264static int file_lookup_open(struct fio_file *f, int flags)
265{
266 struct fio_file *__f;
267 int from_hash;
268
269 __f = lookup_file_hash(f->file_name);
270 if (__f) {
271 dprint(FD_FILE, "found file in hash %s\n", f->file_name);
272 /*
273 * racy, need the __f->lock locked
274 */
275 f->lock = __f->lock;
276 f->lock_owner = __f->lock_owner;
277 f->lock_batch = __f->lock_batch;
278 f->lock_ddir = __f->lock_ddir;
279 from_hash = 1;
280 } else {
281 dprint(FD_FILE, "file not found in hash %s\n", f->file_name);
282 from_hash = 0;
283 }
284
285 f->fd = open(f->file_name, flags, 0600);
286 return from_hash;
287}
288
289int generic_open_file(struct thread_data *td, struct fio_file *f)
290{
291 int is_std = 0;
292 int flags = 0;
293 int from_hash = 0;
294
295 dprint(FD_FILE, "fd open %s\n", f->file_name);
296
297 if (!strcmp(f->file_name, "-")) {
298 if (td_rw(td)) {
299 log_err("fio: can't read/write to stdin/out\n");
300 return 1;
301 }
302 is_std = 1;
303
304 /*
305 * move output logging to stderr, if we are writing to stdout
306 */
307 if (td_write(td))
308 f_out = stderr;
309 }
310
311 if (td->o.odirect)
312 flags |= OS_O_DIRECT;
313 if (td->o.sync_io)
314 flags |= O_SYNC;
315 if (f->filetype != FIO_TYPE_FILE)
316 flags |= FIO_O_NOATIME;
317 if (td->o.create_on_open)
318 flags |= O_CREAT;
319
320open_again:
321 if (td_write(td)) {
322 if (!read_only)
323 flags |= O_RDWR;
324
325 if (f->filetype == FIO_TYPE_FILE)
326 flags |= O_CREAT;
327
328 if (is_std)
329 f->fd = dup(STDOUT_FILENO);
330 else
331 from_hash = file_lookup_open(f, flags);
332 } else {
333 if (f->filetype == FIO_TYPE_CHAR && !read_only)
334 flags |= O_RDWR;
335 else
336 flags |= O_RDONLY;
337
338 if (is_std)
339 f->fd = dup(STDIN_FILENO);
340 else
341 from_hash = file_lookup_open(f, flags);
342 }
343
344 if (f->fd == -1) {
345 char buf[FIO_VERROR_SIZE];
346 int __e = errno;
347
348 if (errno == EPERM && (flags & FIO_O_NOATIME)) {
349 flags &= ~FIO_O_NOATIME;
350 goto open_again;
351 }
352
353 snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name);
354
355 td_verror(td, __e, buf);
356 }
357
358 if (get_file_size(td, f))
359 goto err;
360
361 if (!from_hash && f->fd != -1) {
362 if (add_file_hash(f)) {
363 int ret;
364
365 /*
366 * OK to ignore, we haven't done anything with it
367 */
368 ret = generic_close_file(td, f);
369 goto open_again;
370 }
371 }
372
373 return 0;
374err:
375 close(f->fd);
376 return 1;
377}
378
379int open_files(struct thread_data *td)
380{
381 struct fio_file *f;
382 unsigned int i;
383 int err = 0;
384
385 dprint(FD_FILE, "open files\n");
386
387 for_each_file(td, f, i) {
388 err = td_io_open_file(td, f);
389 if (err) {
390 if (td->error == EMFILE) {
391 log_err("fio: limited open files to: %d\n",
392 td->nr_open_files);
393 td->o.open_files = td->nr_open_files;
394 err = 0;
395 clear_error(td);
396 }
397 break;
398 }
399
400 if (td->o.open_files == td->nr_open_files)
401 break;
402 }
403
404 if (!err)
405 return 0;
406
407 for_each_file(td, f, i)
408 td_io_close_file(td, f);
409
410 return err;
411}
412
413/*
414 * open/close all files, so that ->real_file_size gets set
415 */
416static int get_file_sizes(struct thread_data *td)
417{
418 struct fio_file *f;
419 unsigned int i;
420 int err = 0;
421
422 for_each_file(td, f, i) {
423 dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i,
424 f->file_name);
425
426 if (td->io_ops->open_file(td, f)) {
427 if (td->error != ENOENT) {
428 log_err("%s\n", td->verror);
429 err = 1;
430 }
431 clear_error(td);
432 } else {
433 if (td->io_ops->close_file)
434 td->io_ops->close_file(td, f);
435 }
436
437 if (f->real_file_size == -1ULL && td->o.size)
438 f->real_file_size = td->o.size / td->o.nr_files;
439 }
440
441 return err;
442}
443
444/*
445 * Open the files and setup files sizes, creating files if necessary.
446 */
447int setup_files(struct thread_data *td)
448{
449 unsigned long long total_size, extend_size;
450 struct fio_file *f;
451 unsigned int i;
452 int err = 0, need_extend;
453
454 dprint(FD_FILE, "setup files\n");
455
456 if (td->o.read_iolog_file)
457 return 0;
458
459 /*
460 * if ioengine defines a setup() method, it's responsible for
461 * opening the files and setting f->real_file_size to indicate
462 * the valid range for that file.
463 */
464 if (td->io_ops->setup)
465 err = td->io_ops->setup(td);
466 else
467 err = get_file_sizes(td);
468
469 if (err)
470 return err;
471
472 /*
473 * check sizes. if the files/devices do not exist and the size
474 * isn't passed to fio, abort.
475 */
476 total_size = 0;
477 for_each_file(td, f, i) {
478 if (f->real_file_size == -1ULL)
479 total_size = -1ULL;
480 else
481 total_size += f->real_file_size;
482 }
483
484 /*
485 * device/file sizes are zero and no size given, punt
486 */
487 if ((!total_size || total_size == -1ULL) && !td->o.size &&
488 !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) {
489 log_err("%s: you need to specify size=\n", td->o.name);
490 td_verror(td, EINVAL, "total_file_size");
491 return 1;
492 }
493
494 /*
495 * now file sizes are known, so we can set ->io_size. if size= is
496 * not given, ->io_size is just equal to ->real_file_size. if size
497 * is given, ->io_size is size / nr_files.
498 */
499 extend_size = total_size = 0;
500 need_extend = 0;
501 for_each_file(td, f, i) {
502 f->file_offset = td->o.start_offset;
503
504 if (!td->o.file_size_low) {
505 /*
506 * no file size range given, file size is equal to
507 * total size divided by number of files. if that is
508 * zero, set it to the real file size.
509 */
510 f->io_size = td->o.size / td->o.nr_files;
511 if (!f->io_size)
512 f->io_size = f->real_file_size - f->file_offset;
513 } else if (f->real_file_size < td->o.file_size_low ||
514 f->real_file_size > td->o.file_size_high) {
515 if (f->file_offset > td->o.file_size_low)
516 goto err_offset;
517 /*
518 * file size given. if it's fixed, use that. if it's a
519 * range, generate a random size in-between.
520 */
521 if (td->o.file_size_low == td->o.file_size_high) {
522 f->io_size = td->o.file_size_low
523 - f->file_offset;
524 } else {
525 f->io_size = get_rand_file_size(td)
526 - f->file_offset;
527 }
528 } else
529 f->io_size = f->real_file_size - f->file_offset;
530
531 if (f->io_size == -1ULL)
532 total_size = -1ULL;
533 else
534 total_size += f->io_size;
535
536 if (f->filetype == FIO_TYPE_FILE &&
537 (f->io_size + f->file_offset) > f->real_file_size &&
538 !(td->io_ops->flags & FIO_DISKLESSIO)) {
539 if (!td->o.create_on_open) {
540 need_extend++;
541 extend_size += (f->io_size + f->file_offset);
542 } else
543 f->real_file_size = f->io_size + f->file_offset;
544 f->flags |= FIO_FILE_EXTEND;
545 }
546 }
547
548 if (!td->o.size || td->o.size > total_size)
549 td->o.size = total_size;
550
551 /*
552 * See if we need to extend some files
553 */
554 if (need_extend) {
555 temp_stall_ts = 1;
556 if (!terse_output)
557 log_info("%s: Laying out IO file(s) (%u file(s) /"
558 " %LuMiB)\n", td->o.name, need_extend,
559 extend_size >> 20);
560
561 for_each_file(td, f, i) {
562 unsigned long long old_len, extend_len;
563
564 if (!(f->flags & FIO_FILE_EXTEND))
565 continue;
566
567 assert(f->filetype == FIO_TYPE_FILE);
568 f->flags &= ~FIO_FILE_EXTEND;
569 old_len = f->real_file_size;
570 extend_len = f->io_size + f->file_offset - old_len;
571 f->real_file_size = (f->io_size + f->file_offset);
572 err = extend_file(td, f);
573 if (err)
574 break;
575
576 err = __file_invalidate_cache(td, f, old_len,
577 extend_len);
578 close(f->fd);
579 f->fd = -1;
580 if (err)
581 break;
582 }
583 temp_stall_ts = 0;
584 }
585
586 if (err)
587 return err;
588
589 if (!td->o.zone_size)
590 td->o.zone_size = td->o.size;
591
592 /*
593 * iolog already set the total io size, if we read back
594 * stored entries.
595 */
596 if (!td->o.read_iolog_file)
597 td->total_io_size = td->o.size * td->o.loops;
598 return 0;
599err_offset:
600 log_err("%s: you need to specify valid offset=\n", td->o.name);
601 return 1;
602}
603
604int init_random_map(struct thread_data *td)
605{
606 unsigned long long blocks, num_maps;
607 struct fio_file *f;
608 unsigned int i;
609
610 if (td->o.norandommap || !td_random(td))
611 return 0;
612
613 for_each_file(td, f, i) {
614 blocks = (f->real_file_size + td->o.rw_min_bs - 1) /
615 (unsigned long long) td->o.rw_min_bs;
616 num_maps = (blocks + BLOCKS_PER_MAP - 1) /
617 (unsigned long long) BLOCKS_PER_MAP;
618 f->file_map = smalloc(num_maps * sizeof(int));
619 if (f->file_map) {
620 f->num_maps = num_maps;
621 continue;
622 }
623 if (!td->o.softrandommap) {
624 log_err("fio: failed allocating random map. If running"
625 " a large number of jobs, try the 'norandommap'"
626 " option or set 'softrandommap'. Or give"
627 " a larger --alloc-size to fio.\n");
628 return 1;
629 }
630
631 log_info("fio: file %s failed allocating random map. Running "
632 "job without.\n", f->file_name);
633 f->num_maps = 0;
634 }
635
636 return 0;
637}
638
639void close_files(struct thread_data *td)
640{
641 struct fio_file *f;
642 unsigned int i;
643
644 for_each_file(td, f, i)
645 td_io_close_file(td, f);
646}
647
648void close_and_free_files(struct thread_data *td)
649{
650 struct fio_file *f;
651 unsigned int i;
652
653 dprint(FD_FILE, "close files\n");
654
655 for_each_file(td, f, i) {
656 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
657 dprint(FD_FILE, "free unlink %s\n", f->file_name);
658 unlink(f->file_name);
659 }
660
661 td_io_close_file(td, f);
662 remove_file_hash(f);
663
664 sfree(f->file_name);
665 f->file_name = NULL;
666
667 if (f->file_map) {
668 sfree(f->file_map);
669 f->file_map = NULL;
670 }
671 sfree(f);
672 }
673
674 td->o.filename = NULL;
675 free(td->files);
676 td->files_index = 0;
677 td->files = NULL;
678 td->o.nr_files = 0;
679}
680
681static void get_file_type(struct fio_file *f)
682{
683 struct stat sb;
684
685 if (!strcmp(f->file_name, "-"))
686 f->filetype = FIO_TYPE_PIPE;
687 else
688 f->filetype = FIO_TYPE_FILE;
689
690 if (!lstat(f->file_name, &sb)) {
691 if (S_ISBLK(sb.st_mode))
692 f->filetype = FIO_TYPE_BD;
693 else if (S_ISCHR(sb.st_mode))
694 f->filetype = FIO_TYPE_CHAR;
695 else if (S_ISFIFO(sb.st_mode))
696 f->filetype = FIO_TYPE_PIPE;
697 }
698}
699
700int add_file(struct thread_data *td, const char *fname)
701{
702 int cur_files = td->files_index;
703 char file_name[PATH_MAX];
704 struct fio_file *f;
705 int len = 0;
706
707 dprint(FD_FILE, "add file %s\n", fname);
708
709 f = smalloc(sizeof(*f));
710 if (!f) {
711 log_err("fio: smalloc OOM\n");
712 assert(0);
713 }
714
715 f->fd = -1;
716
717 dprint(FD_FILE, "resize file array to %d files\n", cur_files + 1);
718
719 td->files = realloc(td->files, (cur_files + 1) * sizeof(f));
720 td->files[cur_files] = f;
721
722 /*
723 * init function, io engine may not be loaded yet
724 */
725 if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
726 f->real_file_size = -1ULL;
727
728 if (td->o.directory)
729 len = sprintf(file_name, "%s/", td->o.directory);
730
731 sprintf(file_name + len, "%s", fname);
732 f->file_name = smalloc_strdup(file_name);
733 if (!f->file_name) {
734 log_err("fio: smalloc OOM\n");
735 assert(0);
736 }
737
738 get_file_type(f);
739
740 switch (td->o.file_lock_mode) {
741 case FILE_LOCK_NONE:
742 break;
743 case FILE_LOCK_READWRITE:
744 f->lock = fio_mutex_rw_init();
745 break;
746 case FILE_LOCK_EXCLUSIVE:
747 f->lock = fio_mutex_init(1);
748 break;
749 default:
750 log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode);
751 assert(0);
752 }
753
754 td->files_index++;
755 if (f->filetype == FIO_TYPE_FILE)
756 td->nr_normal_files++;
757
758 dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name,
759 cur_files);
760
761 return cur_files;
762}
763
764void get_file(struct fio_file *f)
765{
766 dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references);
767 assert(f->flags & FIO_FILE_OPEN);
768 f->references++;
769}
770
771int put_file(struct thread_data *td, struct fio_file *f)
772{
773 int f_ret = 0, ret = 0;
774
775 dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references);
776
777 if (!(f->flags & FIO_FILE_OPEN))
778 return 0;
779
780 assert(f->references);
781 if (--f->references)
782 return 0;
783
784 if (should_fsync(td) && td->o.fsync_on_close)
785 f_ret = fsync(f->fd);
786
787 if (td->io_ops->close_file)
788 ret = td->io_ops->close_file(td, f);
789
790 if (!ret)
791 ret = f_ret;
792
793 td->nr_open_files--;
794 f->flags &= ~FIO_FILE_OPEN;
795 return ret;
796}
797
798void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir)
799{
800 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
801 return;
802
803 if (f->lock_owner == td && f->lock_batch--)
804 return;
805
806 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
807 if (ddir == DDIR_READ)
808 fio_mutex_down_read(f->lock);
809 else
810 fio_mutex_down_write(f->lock);
811 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
812 fio_mutex_down(f->lock);
813
814 f->lock_owner = td;
815 f->lock_batch = td->o.lockfile_batch;
816 f->lock_ddir = ddir;
817}
818
819void unlock_file(struct thread_data *td, struct fio_file *f)
820{
821 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
822 return;
823 if (f->lock_batch)
824 return;
825
826 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
827 const int is_read = f->lock_ddir == DDIR_READ;
828 int val = fio_mutex_getval(f->lock);
829
830 if ((is_read && val == 1) || (!is_read && val == -1))
831 f->lock_owner = NULL;
832
833 if (is_read)
834 fio_mutex_up_read(f->lock);
835 else
836 fio_mutex_up_write(f->lock);
837 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) {
838 int val = fio_mutex_getval(f->lock);
839
840 if (val == 0)
841 f->lock_owner = NULL;
842
843 fio_mutex_up(f->lock);
844 }
845}
846
847void unlock_file_all(struct thread_data *td, struct fio_file *f)
848{
849 if (f->lock_owner != td)
850 return;
851
852 f->lock_batch = 0;
853 unlock_file(td, f);
854}
855
856static int recurse_dir(struct thread_data *td, const char *dirname)
857{
858 struct dirent *dir;
859 int ret = 0;
860 DIR *D;
861
862 D = opendir(dirname);
863 if (!D) {
864 char buf[FIO_VERROR_SIZE];
865
866 snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname);
867 td_verror(td, errno, buf);
868 return 1;
869 }
870
871 while ((dir = readdir(D)) != NULL) {
872 char full_path[PATH_MAX];
873 struct stat sb;
874
875 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
876 continue;
877
878 sprintf(full_path, "%s/%s", dirname, dir->d_name);
879
880 if (lstat(full_path, &sb) == -1) {
881 if (errno != ENOENT) {
882 td_verror(td, errno, "stat");
883 return 1;
884 }
885 }
886
887 if (S_ISREG(sb.st_mode)) {
888 add_file(td, full_path);
889 td->o.nr_files++;
890 continue;
891 }
892 if (!S_ISDIR(sb.st_mode))
893 continue;
894
895 ret = recurse_dir(td, full_path);
896 if (ret)
897 break;
898 }
899
900 closedir(D);
901 return ret;
902}
903
904int add_dir_files(struct thread_data *td, const char *path)
905{
906 int ret = recurse_dir(td, path);
907
908 if (!ret)
909 log_info("fio: opendir added %d files\n", td->o.nr_files);
910
911 return ret;
912}
913
914void dup_files(struct thread_data *td, struct thread_data *org)
915{
916 struct fio_file *f;
917 unsigned int i;
918
919 dprint(FD_FILE, "dup files: %d\n", org->files_index);
920
921 if (!org->files)
922 return;
923
924 td->files = malloc(org->files_index * sizeof(f));
925
926 for_each_file(org, f, i) {
927 struct fio_file *__f;
928
929 __f = smalloc(sizeof(*__f));
930 if (!__f) {
931 log_err("fio: smalloc OOM\n");
932 assert(0);
933 }
934
935 if (f->file_name) {
936 __f->file_name = smalloc_strdup(f->file_name);
937 if (!__f->file_name) {
938 log_err("fio: smalloc OOM\n");
939 assert(0);
940 }
941
942 __f->filetype = f->filetype;
943 }
944
945 td->files[i] = __f;
946 }
947}
948
949/*
950 * Returns the index that matches the filename, or -1 if not there
951 */
952int get_fileno(struct thread_data *td, const char *fname)
953{
954 struct fio_file *f;
955 unsigned int i;
956
957 for_each_file(td, f, i)
958 if (!strcmp(f->file_name, fname))
959 return i;
960
961 return -1;
962}
963
964/*
965 * For log usage, where we add/open/close files automatically
966 */
967void free_release_files(struct thread_data *td)
968{
969 close_files(td);
970 td->files_index = 0;
971 td->nr_normal_files = 0;
972}
fio - Flexible IO Tester