Increase accuracy of disk utility percentage
[fio.git] / filesetup.c
CommitLineData
53cdc686
JA
1#include <unistd.h>
2#include <fcntl.h>
3#include <string.h>
4#include <assert.h>
bbf6b540 5#include <dirent.h>
53cdc686
JA
6#include <sys/stat.h>
7#include <sys/mman.h>
bbf6b540 8#include <sys/types.h>
53cdc686
JA
9
10#include "fio.h"
f17c4392 11#include "smalloc.h"
4906e0b5 12#include "filehash.h"
53cdc686 13
7172cfe8
JA
14static int root_warn;
15
3baddf24
JA
16/*
17 * Leaves f->fd open on success, caller must close
18 */
7bb48f84 19static int extend_file(struct thread_data *td, struct fio_file *f)
25205e97 20{
ea443657 21 int r, new_layout = 0, unlink_file = 0, flags;
25205e97
JA
22 unsigned long long left;
23 unsigned int bs;
24 char *b;
b2a15192 25
4241ea8f
JA
26 if (read_only) {
27 log_err("fio: refusing extend of file due to read-only\n");
28 return 0;
29 }
30
507a702f
JA
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 */
ffdfabd4
JA
36 if (td_read(td) || (td_write(td) && td->o.overwrite) ||
37 (td_write(td) && td->io_ops->flags & FIO_NOEXTEND))
507a702f 38 new_layout = 1;
ea443657
JA
39 if (td_write(td) && !td->o.overwrite)
40 unlink_file = 1;
507a702f 41
6ae1f57f 42 if (unlink_file || new_layout) {
bd199f2b 43 dprint(FD_FILE, "layout unlink %s\n", f->file_name);
982016d6 44 if ((unlink(f->file_name) < 0) && (errno != ENOENT)) {
7bb48f84
JA
45 td_verror(td, errno, "unlink");
46 return 1;
47 }
48 }
49
507a702f
JA
50 flags = O_WRONLY | O_CREAT;
51 if (new_layout)
52 flags |= O_TRUNC;
53
ee56ad50 54 dprint(FD_FILE, "open file %s, flags %x\n", f->file_name, flags);
507a702f 55 f->fd = open(f->file_name, flags, 0644);
53cdc686 56 if (f->fd < 0) {
e1161c32 57 td_verror(td, errno, "open");
53cdc686
JA
58 return 1;
59 }
60
fc74ac1d
SL
61 if (!new_layout)
62 goto done;
63
ee56ad50
JA
64 dprint(FD_FILE, "truncate file %s, size %llu\n", f->file_name,
65 f->real_file_size);
7bb48f84 66 if (ftruncate(f->fd, f->real_file_size) == -1) {
e1161c32 67 td_verror(td, errno, "ftruncate");
53cdc686
JA
68 goto err;
69 }
70
fffca02d 71#ifdef FIO_HAVE_FALLOCATE
ee56ad50
JA
72 dprint(FD_FILE, "fallocate file %s, size %llu\n", f->file_name,
73 f->real_file_size);
739097e6
JA
74 r = posix_fallocate(f->fd, 0, f->real_file_size);
75 if (r < 0)
65942476 76 log_err("fio: posix_fallocate fails: %s\n", strerror(-r));
fffca02d 77#endif
40f8298c 78
2dc1bbeb
JA
79 b = malloc(td->o.max_bs[DDIR_WRITE]);
80 memset(b, 0, td->o.max_bs[DDIR_WRITE]);
53cdc686 81
7bb48f84 82 left = f->real_file_size;
53cdc686 83 while (left && !td->terminate) {
2dc1bbeb 84 bs = td->o.max_bs[DDIR_WRITE];
53cdc686
JA
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)
e1161c32 95 td_verror(td, errno, "write");
53cdc686 96 else
e1161c32 97 td_verror(td, EIO, "write");
53cdc686
JA
98
99 break;
100 }
101 }
102
ffdfabd4
JA
103 if (td->terminate) {
104 dprint(FD_FILE, "terminate unlink %s\n", f->file_name);
53cdc686 105 unlink(f->file_name);
ffdfabd4 106 } else if (td->o.create_fsync) {
98e1ac4e
JA
107 if (fsync(f->fd) < 0) {
108 td_verror(td, errno, "fsync");
109 goto err;
110 }
111 }
53cdc686
JA
112
113 free(b);
507a702f 114done:
53cdc686
JA
115 return 0;
116err:
117 close(f->fd);
118 f->fd = -1;
119 return 1;
120}
121
afad68f7
ZY
122static int pre_read_file(struct thread_data *td, struct fio_file *f)
123{
b0f65863 124 int r, did_open = 0, old_runstate;
afad68f7
ZY
125 unsigned long long left;
126 unsigned int bs;
127 char *b;
128
b0f65863
JA
129 if (!(f->flags & FIO_FILE_OPEN)) {
130 if (td->io_ops->open_file(td, f)) {
131 log_err("fio: cannot pre-read, failed to open file\n");
132 return 1;
133 }
134 did_open = 1;
135 }
136
137 old_runstate = td->runstate;
138 td_set_runstate(td, TD_PRE_READING);
139
afad68f7
ZY
140 bs = td->o.max_bs[DDIR_READ];
141 b = malloc(bs);
142 memset(b, 0, bs);
143
144 lseek(f->fd, f->file_offset, SEEK_SET);
145 left = f->io_size;
146
147 while (left && !td->terminate) {
148 if (bs > left)
149 bs = left;
150
151 r = read(f->fd, b, bs);
152
153 if (r == (int) bs) {
154 left -= bs;
155 continue;
156 } else {
157 td_verror(td, EIO, "pre_read");
158 break;
159 }
160 }
161
b0f65863
JA
162 td_set_runstate(td, old_runstate);
163
164 if (did_open)
165 td->io_ops->close_file(td, f);
afad68f7
ZY
166 free(b);
167 return 0;
168}
169
7bb48f84 170static unsigned long long get_rand_file_size(struct thread_data *td)
9c60ce64 171{
dc873b6f 172 unsigned long long ret, sized;
9c60ce64
JA
173 long r;
174
9c60ce64 175 r = os_random_long(&td->file_size_state);
dc873b6f
JA
176 sized = td->o.file_size_high - td->o.file_size_low;
177 ret = (unsigned long long) ((double) sized * (r / (OS_RAND_MAX + 1.0)));
5ec10eaa 178 ret += td->o.file_size_low;
2dc1bbeb 179 ret -= (ret % td->o.rw_min_bs);
9c60ce64
JA
180 return ret;
181}
182
53cdc686
JA
183static int file_size(struct thread_data *td, struct fio_file *f)
184{
185 struct stat st;
186
df9c26b1 187 if (stat(f->file_name, &st) == -1) {
7bb48f84
JA
188 td_verror(td, errno, "fstat");
189 return 1;
190 }
53cdc686 191
7bb48f84 192 f->real_file_size = st.st_size;
53cdc686
JA
193 return 0;
194}
195
196static int bdev_size(struct thread_data *td, struct fio_file *f)
197{
198 unsigned long long bytes;
199 int r;
200
df9c26b1
JA
201 if (td->io_ops->open_file(td, f)) {
202 log_err("fio: failed opening blockdev %s for size check\n",
203 f->file_name);
204 return 1;
205 }
206
53cdc686
JA
207 r = blockdev_size(f->fd, &bytes);
208 if (r) {
e1161c32 209 td_verror(td, r, "blockdev_size");
df9c26b1 210 goto err;
53cdc686
JA
211 }
212
7ab077ab
JA
213 if (!bytes) {
214 log_err("%s: zero sized block device?\n", f->file_name);
df9c26b1 215 goto err;
7ab077ab
JA
216 }
217
53cdc686 218 f->real_file_size = bytes;
53cdc686 219 return 0;
df9c26b1
JA
220err:
221 td->io_ops->close_file(td, f);
222 return 1;
53cdc686
JA
223}
224
225static int get_file_size(struct thread_data *td, struct fio_file *f)
226{
227 int ret = 0;
228
409b3417
JA
229 if (f->flags & FIO_SIZE_KNOWN)
230 return 0;
231
7bb48f84
JA
232 if (f->filetype == FIO_TYPE_FILE)
233 ret = file_size(td, f);
234 else if (f->filetype == FIO_TYPE_BD)
53cdc686
JA
235 ret = bdev_size(td, f);
236 else
237 f->real_file_size = -1;
238
239 if (ret)
240 return ret;
241
242 if (f->file_offset > f->real_file_size) {
5ec10eaa
JA
243 log_err("%s: offset extends end (%Lu > %Lu)\n", td->o.name,
244 f->file_offset, f->real_file_size);
53cdc686
JA
245 return 1;
246 }
247
409b3417 248 f->flags |= FIO_SIZE_KNOWN;
53cdc686
JA
249 return 0;
250}
251
3baddf24
JA
252static int __file_invalidate_cache(struct thread_data *td, struct fio_file *f,
253 unsigned long long off,
254 unsigned long long len)
e5b401d4
JA
255{
256 int ret = 0;
257
3baddf24
JA
258 if (len == -1ULL)
259 len = f->io_size;
260 if (off == -1ULL)
261 off = f->file_offset;
ee56ad50 262
3baddf24
JA
263 dprint(FD_IO, "invalidate cache %s: %llu/%llu\n", f->file_name, off,
264 len);
b5af8293 265
e5b401d4
JA
266 /*
267 * FIXME: add blockdev flushing too
268 */
b5af8293 269 if (f->mmap)
3baddf24 270 ret = madvise(f->mmap, len, MADV_DONTNEED);
5ec10eaa 271 else if (f->filetype == FIO_TYPE_FILE) {
3baddf24 272 ret = fadvise(f->fd, off, len, POSIX_FADV_DONTNEED);
5ec10eaa 273 } else if (f->filetype == FIO_TYPE_BD) {
b5af8293 274 ret = blockdev_invalidate_cache(f->fd);
7e0e25c9 275 if (ret < 0 && errno == EACCES && geteuid()) {
7172cfe8 276 if (!root_warn) {
5ec10eaa
JA
277 log_err("fio: only root may flush block "
278 "devices. Cache flush bypassed!\n");
7172cfe8
JA
279 root_warn = 1;
280 }
7e0e25c9
JA
281 ret = 0;
282 }
b5605e9d 283 } else if (f->filetype == FIO_TYPE_CHAR || f->filetype == FIO_TYPE_PIPE)
e5b401d4
JA
284 ret = 0;
285
286 if (ret < 0) {
e1161c32 287 td_verror(td, errno, "invalidate_cache");
e5b401d4 288 return 1;
3baddf24
JA
289 } else if (ret > 0) {
290 td_verror(td, ret, "invalidate_cache");
291 return 1;
e5b401d4
JA
292 }
293
ad2da605 294 return ret;
3baddf24
JA
295
296}
297
298int file_invalidate_cache(struct thread_data *td, struct fio_file *f)
299{
a5fb461f
JA
300 if (!(f->flags & FIO_FILE_OPEN))
301 return 0;
302
3baddf24 303 return __file_invalidate_cache(td, f, -1, -1);
e5b401d4
JA
304}
305
6977bcd0 306int generic_close_file(struct thread_data fio_unused *td, struct fio_file *f)
53cdc686 307{
6977bcd0
JA
308 int ret = 0;
309
ee56ad50 310 dprint(FD_FILE, "fd close %s\n", f->file_name);
4906e0b5
JA
311
312 remove_file_hash(f);
313
6977bcd0
JA
314 if (close(f->fd) < 0)
315 ret = errno;
316
b5af8293 317 f->fd = -1;
6977bcd0 318 return ret;
53cdc686
JA
319}
320
4d4e80f2 321static int file_lookup_open(struct fio_file *f, int flags)
53cdc686 322{
29c1349f 323 struct fio_file *__f;
4d4e80f2
JA
324 int from_hash;
325
326 __f = lookup_file_hash(f->file_name);
327 if (__f) {
9efef3c4 328 dprint(FD_FILE, "found file in hash %s\n", f->file_name);
4d4e80f2
JA
329 /*
330 * racy, need the __f->lock locked
331 */
332 f->lock = __f->lock;
333 f->lock_owner = __f->lock_owner;
334 f->lock_batch = __f->lock_batch;
335 f->lock_ddir = __f->lock_ddir;
4d4e80f2
JA
336 from_hash = 1;
337 } else {
9efef3c4 338 dprint(FD_FILE, "file not found in hash %s\n", f->file_name);
4d4e80f2
JA
339 from_hash = 0;
340 }
341
e8670ef8 342 f->fd = open(f->file_name, flags, 0600);
4d4e80f2
JA
343 return from_hash;
344}
345
346int generic_open_file(struct thread_data *td, struct fio_file *f)
347{
66159828 348 int is_std = 0;
53cdc686 349 int flags = 0;
29c1349f 350 int from_hash = 0;
53cdc686 351
ee56ad50
JA
352 dprint(FD_FILE, "fd open %s\n", f->file_name);
353
66159828
JA
354 if (!strcmp(f->file_name, "-")) {
355 if (td_rw(td)) {
356 log_err("fio: can't read/write to stdin/out\n");
357 return 1;
358 }
359 is_std = 1;
ce98fa66
JA
360
361 /*
362 * move output logging to stderr, if we are writing to stdout
363 */
364 if (td_write(td))
365 f_out = stderr;
66159828
JA
366 }
367
2dc1bbeb 368 if (td->o.odirect)
2fd233b7 369 flags |= OS_O_DIRECT;
2dc1bbeb 370 if (td->o.sync_io)
2fd233b7 371 flags |= O_SYNC;
ad92396c 372 if (f->filetype != FIO_TYPE_FILE)
5921e80c 373 flags |= FIO_O_NOATIME;
814452bd
JA
374 if (td->o.create_on_open)
375 flags |= O_CREAT;
53cdc686 376
056f3459 377open_again:
660a1cb5 378 if (td_write(td)) {
17308158
JA
379 if (!read_only)
380 flags |= O_RDWR;
53cdc686 381
af52b345 382 if (f->filetype == FIO_TYPE_FILE)
2fd233b7 383 flags |= O_CREAT;
2fd233b7 384
66159828
JA
385 if (is_std)
386 f->fd = dup(STDOUT_FILENO);
4d4e80f2
JA
387 else
388 from_hash = file_lookup_open(f, flags);
2fd233b7 389 } else {
4241ea8f 390 if (f->filetype == FIO_TYPE_CHAR && !read_only)
2fd233b7
JA
391 flags |= O_RDWR;
392 else
393 flags |= O_RDONLY;
394
66159828
JA
395 if (is_std)
396 f->fd = dup(STDIN_FILENO);
4d4e80f2
JA
397 else
398 from_hash = file_lookup_open(f, flags);
53cdc686
JA
399 }
400
401 if (f->fd == -1) {
e4e33258 402 char buf[FIO_VERROR_SIZE];
e1161c32
JA
403 int __e = errno;
404
5921e80c
JA
405 if (errno == EPERM && (flags & FIO_O_NOATIME)) {
406 flags &= ~FIO_O_NOATIME;
056f3459
AC
407 goto open_again;
408 }
409
e8670ef8 410 snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name);
e4e33258
JA
411
412 td_verror(td, __e, buf);
53cdc686
JA
413 }
414
29c1349f
JA
415 if (!from_hash && f->fd != -1) {
416 if (add_file_hash(f)) {
417 int ret;
418
419 /*
420 * OK to ignore, we haven't done anything with it
421 */
422 ret = generic_close_file(td, f);
423 goto open_again;
424 }
425 }
4906e0b5 426
53cdc686 427 return 0;
b5af8293
JA
428}
429
df9c26b1 430int generic_get_file_size(struct thread_data *td, struct fio_file *f)
21972cde 431{
df9c26b1 432 return get_file_size(td, f);
21972cde
JA
433}
434
7bb48f84
JA
435/*
436 * open/close all files, so that ->real_file_size gets set
437 */
bab3fd58 438static int get_file_sizes(struct thread_data *td)
7bb48f84
JA
439{
440 struct fio_file *f;
441 unsigned int i;
bab3fd58 442 int err = 0;
7bb48f84
JA
443
444 for_each_file(td, f, i) {
5ec10eaa
JA
445 dprint(FD_FILE, "get file size for %p/%d/%p\n", f, i,
446 f->file_name);
9efef3c4 447
99a47c69 448 if (td_io_get_file_size(td, f)) {
40b44f4a
JA
449 if (td->error != ENOENT) {
450 log_err("%s\n", td->verror);
451 err = 1;
452 }
541d66d7 453 clear_error(td);
07eb79df 454 }
409b3417
JA
455
456 if (f->real_file_size == -1ULL && td->o.size)
457 f->real_file_size = td->o.size / td->o.nr_files;
7bb48f84 458 }
bab3fd58
JA
459
460 return err;
7bb48f84
JA
461}
462
463/*
464 * Open the files and setup files sizes, creating files if necessary.
465 */
53cdc686
JA
466int setup_files(struct thread_data *td)
467{
7bb48f84 468 unsigned long long total_size, extend_size;
53cdc686 469 struct fio_file *f;
af52b345 470 unsigned int i;
000b0803 471 int err = 0, need_extend;
53cdc686 472
ee56ad50
JA
473 dprint(FD_FILE, "setup files\n");
474
691c8fb0
JA
475 if (td->o.read_iolog_file)
476 return 0;
477
53cdc686
JA
478 /*
479 * if ioengine defines a setup() method, it's responsible for
7bb48f84
JA
480 * opening the files and setting f->real_file_size to indicate
481 * the valid range for that file.
53cdc686
JA
482 */
483 if (td->io_ops->setup)
7bb48f84
JA
484 err = td->io_ops->setup(td);
485 else
bab3fd58 486 err = get_file_sizes(td);
53cdc686 487
f1027063
JA
488 if (err)
489 return err;
490
0a7eb121 491 /*
7bb48f84
JA
492 * check sizes. if the files/devices do not exist and the size
493 * isn't passed to fio, abort.
0a7eb121 494 */
7bb48f84
JA
495 total_size = 0;
496 for_each_file(td, f, i) {
497 if (f->real_file_size == -1ULL)
498 total_size = -1ULL;
499 else
500 total_size += f->real_file_size;
501 }
0a7eb121 502
7bb48f84
JA
503 /*
504 * device/file sizes are zero and no size given, punt
505 */
1f809d15 506 if ((!total_size || total_size == -1ULL) && !td->o.size &&
aa31f1f1 507 !(td->io_ops->flags & FIO_NOIO) && !td->o.fill_device) {
7bb48f84 508 log_err("%s: you need to specify size=\n", td->o.name);
e1161c32 509 td_verror(td, EINVAL, "total_file_size");
53cdc686
JA
510 return 1;
511 }
512
7bb48f84
JA
513 /*
514 * now file sizes are known, so we can set ->io_size. if size= is
515 * not given, ->io_size is just equal to ->real_file_size. if size
516 * is given, ->io_size is size / nr_files.
517 */
518 extend_size = total_size = 0;
519 need_extend = 0;
520 for_each_file(td, f, i) {
bcdedd0a
YHJT
521 f->file_offset = td->o.start_offset;
522
7bb48f84
JA
523 if (!td->o.file_size_low) {
524 /*
525 * no file size range given, file size is equal to
526 * total size divided by number of files. if that is
527 * zero, set it to the real file size.
528 */
529 f->io_size = td->o.size / td->o.nr_files;
65bdb10a 530 if (!f->io_size)
273f8c91 531 f->io_size = f->real_file_size - f->file_offset;
7bb48f84
JA
532 } else if (f->real_file_size < td->o.file_size_low ||
533 f->real_file_size > td->o.file_size_high) {
5ec10eaa 534 if (f->file_offset > td->o.file_size_low)
bcdedd0a 535 goto err_offset;
7bb48f84
JA
536 /*
537 * file size given. if it's fixed, use that. if it's a
538 * range, generate a random size in-between.
539 */
5ec10eaa
JA
540 if (td->o.file_size_low == td->o.file_size_high) {
541 f->io_size = td->o.file_size_low
542 - f->file_offset;
543 } else {
544 f->io_size = get_rand_file_size(td)
545 - f->file_offset;
546 }
65bdb10a 547 } else
bcdedd0a 548 f->io_size = f->real_file_size - f->file_offset;
53cdc686 549
7bb48f84
JA
550 if (f->io_size == -1ULL)
551 total_size = -1ULL;
552 else
553 total_size += f->io_size;
554
555 if (f->filetype == FIO_TYPE_FILE &&
bcdedd0a 556 (f->io_size + f->file_offset) > f->real_file_size &&
7bb48f84 557 !(td->io_ops->flags & FIO_DISKLESSIO)) {
814452bd
JA
558 if (!td->o.create_on_open) {
559 need_extend++;
560 extend_size += (f->io_size + f->file_offset);
561 } else
562 f->real_file_size = f->io_size + f->file_offset;
7bb48f84 563 f->flags |= FIO_FILE_EXTEND;
5ec10eaa 564 }
7bb48f84 565 }
53cdc686 566
2298290e 567 if (!td->o.size || td->o.size > total_size)
7bb48f84 568 td->o.size = total_size;
21972cde 569
7bb48f84
JA
570 /*
571 * See if we need to extend some files
572 */
573 if (need_extend) {
574 temp_stall_ts = 1;
a7ba8c5f
SSY
575 if (!terse_output)
576 log_info("%s: Laying out IO file(s) (%u file(s) /"
577 " %LuMiB)\n", td->o.name, need_extend,
578 extend_size >> 20);
7bb48f84
JA
579
580 for_each_file(td, f, i) {
3baddf24
JA
581 unsigned long long old_len, extend_len;
582
7bb48f84
JA
583 if (!(f->flags & FIO_FILE_EXTEND))
584 continue;
585
409b3417 586 assert(f->filetype == FIO_TYPE_FILE);
7bb48f84 587 f->flags &= ~FIO_FILE_EXTEND;
3baddf24
JA
588 old_len = f->real_file_size;
589 extend_len = f->io_size + f->file_offset - old_len;
bcdedd0a 590 f->real_file_size = (f->io_size + f->file_offset);
7bb48f84
JA
591 err = extend_file(td, f);
592 if (err)
3baddf24
JA
593 break;
594
595 err = __file_invalidate_cache(td, f, old_len,
596 extend_len);
597 close(f->fd);
598 f->fd = -1;
599 if (err)
7bb48f84
JA
600 break;
601 }
602 temp_stall_ts = 0;
603 }
604
605 if (err)
606 return err;
607
608 if (!td->o.zone_size)
609 td->o.zone_size = td->o.size;
610
ea966f81
JA
611 /*
612 * iolog already set the total io size, if we read back
613 * stored entries.
614 */
615 if (!td->o.read_iolog_file)
616 td->total_io_size = td->o.size * td->o.loops;
7bb48f84 617 return 0;
bcdedd0a
YHJT
618err_offset:
619 log_err("%s: you need to specify valid offset=\n", td->o.name);
620 return 1;
53cdc686
JA
621}
622
afad68f7
ZY
623int pre_read_files(struct thread_data *td)
624{
625 struct fio_file *f;
626 unsigned int i;
627
628 dprint(FD_FILE, "pre_read files\n");
629
630 for_each_file(td, f, i) {
631 pre_read_file(td, f);
632 }
633
634 return 1;
635}
636
68727076
JA
637int init_random_map(struct thread_data *td)
638{
509eab12 639 unsigned long long blocks, num_maps;
68727076
JA
640 struct fio_file *f;
641 unsigned int i;
642
de8dd119 643 if (td->o.norandommap || !td_random(td))
68727076
JA
644 return 0;
645
646 for_each_file(td, f, i) {
5ec10eaa
JA
647 blocks = (f->real_file_size + td->o.rw_min_bs - 1) /
648 (unsigned long long) td->o.rw_min_bs;
649 num_maps = (blocks + BLOCKS_PER_MAP - 1) /
650 (unsigned long long) BLOCKS_PER_MAP;
de605666 651 f->file_map = smalloc(num_maps * sizeof(int));
303032ae
JA
652 if (f->file_map) {
653 f->num_maps = num_maps;
654 continue;
68727076 655 }
2b386d25 656 if (!td->o.softrandommap) {
5ec10eaa
JA
657 log_err("fio: failed allocating random map. If running"
658 " a large number of jobs, try the 'norandommap'"
2b386d25
JA
659 " option or set 'softrandommap'. Or give"
660 " a larger --alloc-size to fio.\n");
68727076
JA
661 return 1;
662 }
303032ae
JA
663
664 log_info("fio: file %s failed allocating random map. Running "
665 "job without.\n", f->file_name);
666 f->num_maps = 0;
68727076
JA
667 }
668
669 return 0;
670}
671
53cdc686
JA
672void close_files(struct thread_data *td)
673{
0ab8db89 674 struct fio_file *f;
af52b345 675 unsigned int i;
53cdc686 676
24ffd2c2
JA
677 for_each_file(td, f, i)
678 td_io_close_file(td, f);
679}
680
681void close_and_free_files(struct thread_data *td)
682{
683 struct fio_file *f;
684 unsigned int i;
685
ee56ad50
JA
686 dprint(FD_FILE, "close files\n");
687
0ab8db89 688 for_each_file(td, f, i) {
ffdfabd4
JA
689 if (td->o.unlink && f->filetype == FIO_TYPE_FILE) {
690 dprint(FD_FILE, "free unlink %s\n", f->file_name);
132ad46d 691 unlink(f->file_name);
ffdfabd4 692 }
bdb4e2e9 693
b5af8293 694 td_io_close_file(td, f);
b9fbcf21 695 remove_file_hash(f);
b3dc7f07 696
f17c4392 697 sfree(f->file_name);
fa1da865
JA
698 f->file_name = NULL;
699
c343981b 700 if (f->file_map) {
f17c4392 701 sfree(f->file_map);
c343981b
JA
702 f->file_map = NULL;
703 }
78d99e6a 704 sfree(f);
53cdc686 705 }
b4a6a59a 706
2dc1bbeb 707 td->o.filename = NULL;
cade3ef4 708 free(td->files);
9efef3c4 709 td->files_index = 0;
b4a6a59a 710 td->files = NULL;
2dc1bbeb 711 td->o.nr_files = 0;
53cdc686 712}
af52b345 713
e3bab463 714static void get_file_type(struct fio_file *f)
af52b345
JA
715{
716 struct stat sb;
717
66159828
JA
718 if (!strcmp(f->file_name, "-"))
719 f->filetype = FIO_TYPE_PIPE;
720 else
721 f->filetype = FIO_TYPE_FILE;
af52b345 722
e3bab463 723 if (!lstat(f->file_name, &sb)) {
af52b345
JA
724 if (S_ISBLK(sb.st_mode))
725 f->filetype = FIO_TYPE_BD;
726 else if (S_ISCHR(sb.st_mode))
727 f->filetype = FIO_TYPE_CHAR;
b5605e9d
JA
728 else if (S_ISFIFO(sb.st_mode))
729 f->filetype = FIO_TYPE_PIPE;
af52b345
JA
730 }
731}
732
f29b25a3 733int add_file(struct thread_data *td, const char *fname)
af52b345 734{
7b4e4fe5 735 int cur_files = td->files_index;
bd0ee748 736 char file_name[PATH_MAX];
af52b345 737 struct fio_file *f;
bd0ee748 738 int len = 0;
af52b345 739
ee56ad50
JA
740 dprint(FD_FILE, "add file %s\n", fname);
741
f17c4392 742 f = smalloc(sizeof(*f));
c48c0be7
JA
743 if (!f) {
744 log_err("fio: smalloc OOM\n");
745 assert(0);
746 }
747
af52b345 748 f->fd = -1;
bd0ee748 749
fc99bc0d 750 if (td->files_size <= td->files_index) {
4b341fca 751 int new_size = td->o.nr_files + 1;
126d65c6 752
fc99bc0d
JA
753 dprint(FD_FILE, "resize file array to %d files\n", new_size);
754
755 td->files = realloc(td->files, new_size * sizeof(f));
fc99bc0d
JA
756 td->files_size = new_size;
757 }
8bb7679e 758 td->files[cur_files] = f;
126d65c6 759
07eb79df
JA
760 /*
761 * init function, io engine may not be loaded yet
762 */
763 if (td->io_ops && (td->io_ops->flags & FIO_DISKLESSIO))
764 f->real_file_size = -1ULL;
765
bd0ee748
JA
766 if (td->o.directory)
767 len = sprintf(file_name, "%s/", td->o.directory);
768
769 sprintf(file_name + len, "%s", fname);
f17c4392 770 f->file_name = smalloc_strdup(file_name);
c48c0be7
JA
771 if (!f->file_name) {
772 log_err("fio: smalloc OOM\n");
773 assert(0);
774 }
775
e3bab463 776 get_file_type(f);
af52b345 777
4d4e80f2
JA
778 switch (td->o.file_lock_mode) {
779 case FILE_LOCK_NONE:
780 break;
781 case FILE_LOCK_READWRITE:
782 f->lock = fio_mutex_rw_init();
783 break;
784 case FILE_LOCK_EXCLUSIVE:
785 f->lock = fio_mutex_init(1);
786 break;
787 default:
788 log_err("fio: unknown lock mode: %d\n", td->o.file_lock_mode);
789 assert(0);
790 }
29c1349f 791
7b4e4fe5 792 td->files_index++;
1549441c
JA
793 if (f->filetype == FIO_TYPE_FILE)
794 td->nr_normal_files++;
f29b25a3 795
5ec10eaa
JA
796 dprint(FD_FILE, "file %p \"%s\" added at %d\n", f, f->file_name,
797 cur_files);
9efef3c4 798
f29b25a3 799 return cur_files;
af52b345 800}
0ad920e7
JA
801
802void get_file(struct fio_file *f)
803{
8172fe97 804 dprint(FD_FILE, "get file %s, ref=%d\n", f->file_name, f->references);
97af62ce 805 assert(f->flags & FIO_FILE_OPEN);
0ad920e7
JA
806 f->references++;
807}
808
6977bcd0 809int put_file(struct thread_data *td, struct fio_file *f)
0ad920e7 810{
98e1ac4e 811 int f_ret = 0, ret = 0;
6977bcd0 812
8172fe97 813 dprint(FD_FILE, "put file %s, ref=%d\n", f->file_name, f->references);
ee56ad50 814
0ad920e7 815 if (!(f->flags & FIO_FILE_OPEN))
6977bcd0 816 return 0;
0ad920e7
JA
817
818 assert(f->references);
819 if (--f->references)
6977bcd0 820 return 0;
0ad920e7 821
d424d4dd 822 if (should_fsync(td) && td->o.fsync_on_close)
98e1ac4e 823 f_ret = fsync(f->fd);
ebb1415f 824
0ad920e7 825 if (td->io_ops->close_file)
6977bcd0 826 ret = td->io_ops->close_file(td, f);
1020a139 827
98e1ac4e 828 if (!ret)
a5fb461f 829 ret = f_ret;
98e1ac4e 830
0ad920e7
JA
831 td->nr_open_files--;
832 f->flags &= ~FIO_FILE_OPEN;
6977bcd0 833 return ret;
0ad920e7 834}
bbf6b540 835
4d4e80f2 836void lock_file(struct thread_data *td, struct fio_file *f, enum fio_ddir ddir)
b2bd2bd9 837{
4d4e80f2
JA
838 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
839 return;
29c1349f 840
4d4e80f2
JA
841 if (f->lock_owner == td && f->lock_batch--)
842 return;
843
844 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
845 if (ddir == DDIR_READ)
846 fio_mutex_down_read(f->lock);
847 else
848 fio_mutex_down_write(f->lock);
849 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE)
850 fio_mutex_down(f->lock);
851
852 f->lock_owner = td;
853 f->lock_batch = td->o.lockfile_batch;
854 f->lock_ddir = ddir;
b2bd2bd9
JA
855}
856
4d4e80f2 857void unlock_file(struct thread_data *td, struct fio_file *f)
b2bd2bd9 858{
4d4e80f2
JA
859 if (!f->lock || td->o.file_lock_mode == FILE_LOCK_NONE)
860 return;
861 if (f->lock_batch)
862 return;
863
864 if (td->o.file_lock_mode == FILE_LOCK_READWRITE) {
865 const int is_read = f->lock_ddir == DDIR_READ;
866 int val = fio_mutex_getval(f->lock);
29c1349f 867
4d4e80f2
JA
868 if ((is_read && val == 1) || (!is_read && val == -1))
869 f->lock_owner = NULL;
29c1349f 870
4d4e80f2
JA
871 if (is_read)
872 fio_mutex_up_read(f->lock);
873 else
874 fio_mutex_up_write(f->lock);
875 } else if (td->o.file_lock_mode == FILE_LOCK_EXCLUSIVE) {
876 int val = fio_mutex_getval(f->lock);
877
878 if (val == 0)
879 f->lock_owner = NULL;
880
881 fio_mutex_up(f->lock);
29c1349f 882 }
b2bd2bd9
JA
883}
884
4d4e80f2
JA
885void unlock_file_all(struct thread_data *td, struct fio_file *f)
886{
887 if (f->lock_owner != td)
888 return;
889
890 f->lock_batch = 0;
891 unlock_file(td, f);
892}
893
bbf6b540
JA
894static int recurse_dir(struct thread_data *td, const char *dirname)
895{
896 struct dirent *dir;
897 int ret = 0;
898 DIR *D;
899
900 D = opendir(dirname);
901 if (!D) {
0ddb270c
JA
902 char buf[FIO_VERROR_SIZE];
903
904 snprintf(buf, FIO_VERROR_SIZE - 1, "opendir(%s)", dirname);
905 td_verror(td, errno, buf);
bbf6b540
JA
906 return 1;
907 }
908
909 while ((dir = readdir(D)) != NULL) {
910 char full_path[PATH_MAX];
911 struct stat sb;
912
e85b2b83
JA
913 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
914 continue;
96d32d51 915
bbf6b540
JA
916 sprintf(full_path, "%s/%s", dirname, dir->d_name);
917
918 if (lstat(full_path, &sb) == -1) {
919 if (errno != ENOENT) {
920 td_verror(td, errno, "stat");
921 return 1;
922 }
923 }
924
925 if (S_ISREG(sb.st_mode)) {
926 add_file(td, full_path);
2dc1bbeb 927 td->o.nr_files++;
bbf6b540
JA
928 continue;
929 }
0ddb270c
JA
930 if (!S_ISDIR(sb.st_mode))
931 continue;
bbf6b540 932
5ec10eaa
JA
933 ret = recurse_dir(td, full_path);
934 if (ret)
bbf6b540
JA
935 break;
936 }
937
938 closedir(D);
939 return ret;
940}
941
942int add_dir_files(struct thread_data *td, const char *path)
943{
0ddb270c
JA
944 int ret = recurse_dir(td, path);
945
946 if (!ret)
947 log_info("fio: opendir added %d files\n", td->o.nr_files);
948
949 return ret;
bbf6b540 950}
cade3ef4
JA
951
952void dup_files(struct thread_data *td, struct thread_data *org)
953{
954 struct fio_file *f;
955 unsigned int i;
9efef3c4
JA
956
957 dprint(FD_FILE, "dup files: %d\n", org->files_index);
cade3ef4
JA
958
959 if (!org->files)
960 return;
961
9efef3c4 962 td->files = malloc(org->files_index * sizeof(f));
cade3ef4 963
9efef3c4 964 for_each_file(org, f, i) {
b0fe421a
JA
965 struct fio_file *__f;
966
f17c4392 967 __f = smalloc(sizeof(*__f));
c48c0be7
JA
968 if (!__f) {
969 log_err("fio: smalloc OOM\n");
970 assert(0);
971 }
972
bc3456fa 973 if (f->file_name) {
f17c4392 974 __f->file_name = smalloc_strdup(f->file_name);
c48c0be7
JA
975 if (!__f->file_name) {
976 log_err("fio: smalloc OOM\n");
977 assert(0);
978 }
979
bc3456fa
AC
980 __f->filetype = f->filetype;
981 }
b0fe421a
JA
982
983 td->files[i] = __f;
cade3ef4
JA
984 }
985}
f29b25a3
JA
986
987/*
988 * Returns the index that matches the filename, or -1 if not there
989 */
990int get_fileno(struct thread_data *td, const char *fname)
991{
992 struct fio_file *f;
993 unsigned int i;
994
995 for_each_file(td, f, i)
996 if (!strcmp(f->file_name, fname))
997 return i;
998
999 return -1;
1000}
1001
1002/*
1003 * For log usage, where we add/open/close files automatically
1004 */
1005void free_release_files(struct thread_data *td)
1006{
1007 close_files(td);
1008 td->files_index = 0;
1009 td->nr_normal_files = 0;
1010}